JP5564820B2 - Metal strip winding equipment and winding method - Google Patents

Description

  The present invention is a metal that can prevent winding slippage of a metal strip, particularly winding slippage when winding the tail end portion of the metal strip with no tension (for example, a state where no winding tension is applied through a rolling mill). The present invention relates to a belt winding facility and a metal strip winding method using the winding facility.

Hereinafter, a steel strip winding technique that has been generally used will be described.
57 and 58 show a conventional general steel strip winding facility, in which FIG. 57 is a plan view and FIG. 58 is a side view. This equipment includes a transport roll 47 for transporting the steel strip, a side guide 41 for guiding the steel strip to the pass line center (centering), guiding the steel strip pass line obliquely downward, and winding tension ( A pinch roll 42 for imparting (frictional force), a coiler 43 for winding a steel strip, and the like.
The coiler 43 winds the steel strip in a coil shape by a frictional force generated by a mandrel 430 that is a winding shaft and a wrapper roll 431 that presses the steel strip. The conveyance roll 47 (conveyance roll device) is called a hot run table or a run-out table in a hot rolling facility, and the most downstream conveyance roll group is shown in the figure. The side guide 41 is provided with a clearance of several millimeters to several tens of millimeters with respect to the width of the steel strip in consideration of position control error with respect to the plate width target, plate width error in rolling, wear damage due to collision, and the like. .

The pinch roll 42 applies a rolling load to the upper roll 420a via a bearing box (chock) by independent rolling devices on both ends of the roll, and sandwiches a steel strip between the lower roll 420b. In order to guide the steel strip between the upper and lower rolls of the pinch roll 42, an entry guide 44, an apron guide 45, etc. are installed on the entry side of the pinch roll 42, and a throat guide 46, etc. is installed on the exit side. ing.
In the case of a hot-rolled steel strip, since the winding tension is applied to the coiler 43 by a rolling mill during finish rolling, the holding strength of the steel strip by the pinch roll 42 is generally set low. Then, the tension distribution gradually shifts to the pinch roll 42 slightly before the tail end of the steel strip exits the finishing mill, and after the tail end of the steel strip exits the finishing mill, the winding tension ( Frictional force).

The pinch roll 42 sandwiches the steel strip between the upper and lower rolls 420a and 420b, rotates the upper and lower rolls at a peripheral speed that is several percent to several tens of percent slower than the plate passing speed of the steel strip, and slides the roll against the steel strip. The winding tension (frictional force) applied to the coiler 43 is applied by feeding out the air. If the friction force by the pinch roll 42 is weak, the winding becomes loose, and if the friction force is strong, the meandering due to the pinch roll is likely to occur when the direction of the tension is shifted. Speed control is required. In particular, at the tail end of the steel strip, there are many cases where the change in tension, speed, plate thickness, etc. is large, and the meandering change becomes abrupt.
FIG. 59 is a schematic diagram showing a situation in which meandering occurs due to pinch rolls when winding the tail end of the steel strip. When the steel strip meanders with the pinch roll 42 in this way, the coiler 43 causes winding slippage. Will occur.

There are two main causes of meandering caused by the pinch roll: a side slip force, which is a component of the frictional force in the plate width direction, and a moment due to a deviation (differential load) in the rolling load at both ends of the pinch roll shaft. Of the meandering caused by these pinch rolls, the side slip force will be described below.
If the incident angle of the steel strip with respect to the axis of the pinch roll 42 is truly right, no meandering due to the pinch roll occurs. However, since there is a clearance between the side guide 41 and the steel strip, the steel strip can have a minute incident angle error with respect to the axis perpendicular to the pinch roll 42. Even if the steel strip is parallel to the center of the pass line, the axis of the pinch roll 42 may have a minute angular error with respect to the direction perpendicular to the line center. As long as it is a machine, minute angular errors are inevitable. Then, due to the slight deviation of the incident angle between the steel strip and the pinch roll 42, a side slip force due to the component force in the plate width direction is generated out of the frictional force as the winding tension, and the pinch roll 42 causes the meandering. Occur. The meandering amount generated in the pinch roll 42 reaches the coiler 43 by the steel strip passing plate and becomes an equivalent amount of winding deviation.

  In order to reduce the incident angle error of the steel strip with respect to the axis of the pinch roll 42, it is effective to bring the side guide 41 close to the vicinity of the pinch roll 42. However, the side guide 41 is brought close to the vicinity of the pinch roll 42 in order to avoid interference with the entry guide 44 or the like, or because the transport roll 50 cannot be disposed on the entry side of the pinch roll 42. I can't. In addition, although it is desirable to arrange the transport roll 47 as far as the entrance side of the pinch roll 42, the most downstream transport roll 47 cannot be disposed in the vicinity of the pinch roll 42 due to apparatus interference or the like. The apron guide 45 is a guide provided to prevent the steel strip from sinking downward, instead of disposing the transport roll 47 in the vicinity of the entrance side of the pinch roll 42.

The incidence angle error of the steel strip with respect to the axis of the pinch roll 42 is caused not only by the distance between the side guide 41 and the pinch roll 42 but also by the clearance between the side guide 41 and the steel strip. Obviously, it is effective to restrain the steel strip with the side guide 41 in order to prevent meandering due to the pinch roll.
If the edge portion of the steel strip is firmly constrained by the side guide 41, the steel strip is rubbed. Therefore, in order to constrain the edge of the steel strip by the side guide 41 without causing such crease, the plate width Accurate position control according to the need is required. However, at the tail end of the steel strip, since there is a wide portion (called flare or the like) generated in the rolling stage, accurate sheet width tracking control is difficult.
In addition, when performing so-called pressure control in which the side guide 41 is pressed against the edge of the steel strip, the pressing pressure constant control with higher accuracy is required as the steel strip becomes thinner. However, in such a constant pressing pressure control, the resultant force applied to one guide plate is fed back over the entire length of the side guide. Therefore, when the plate width is not uniform in the longitudinal direction of the steel strip, the partial pressing pressure is excessive. Or it is inevitable that the pressing pressure is too low.

  Furthermore, as shown in FIG. 60, the lower side of the side guide 41 has a shape (comb-like shape) that enters between the adjacent conveyance rolls 47, so when the side guide 41 is pressed against the edge of the steel strip The edge of the steel strip hurts (so-called ear hurts). In particular, in the case of a thin steel strip whose thickness is equal to or less than the clearance between the upper end of the transport roll 47 and the lower end edge of the side guide 41 (the arc-shaped lower end edge along the transport roll), the sheet thickness contacts the edge portion of the steel strip. Is not the entire length of the side guide 41 but only the comb-like portion, and when pressed only by the comb-like portion in this way, the edge portion of the steel strip is particularly painful. Also, by pressing, the inside of the side guide 41 is also easily worn, and because the opponent is a steel strip edge portion, it becomes wedge-shaped local wear, and the one that was initially restrained by the flat surface of the side guide 41, Such local wear can cause the steel strip to be brazed.

In order to correct the meandering generated by the pinch roll 42, a method of installing a meandering correction roller or the like between the pinch roll 42 and the coiler 43 has been studied. Since the pass line of the belt changes, it is difficult to install a support roller or the like, and the method of performing meandering control by applying a roller to an unsupported steel strip has a limit from the viewpoint of control response. In addition, a method of feeding back a sensor signal such as a meandering meter and controlling the steel strip in the width direction is difficult to realize due to the problem of responsiveness.
In Patent Documents 1 to 3, a so-called double pinch roll type facility in which a pinch roll (# 0 pinch roll) for sharing the winding tension is installed further upstream of the pinch roll (# 1 pinch roll) on the coiler entry side. It is shown.
In such facilities of Patent Documents 1 to 3, the steel strip between the # 1 pinch roll and the # 0 pinch roll has a back tension due to the # 0 pinch roll. Can prevent meandering.

  On the other hand, Patent Document 4 shows a facility in which the side guide width is widened downward, both edge portions of the steel strip are restrained downward, and the side guide width can be hydraulically controlled. Yes. In this equipment, the side guide width (preset value) is set to be 10 to 15 mm wider than the plate width and then switched to constant hydraulic control. The set value of the side guide width extends from the tip of the steel strip to the tail end. Finely divided at each timing. Then, before the tail end of the steel strip passes through the finishing mill and becomes no tension, the pressing pressure constant control is performed such that the side guides restrain the steel strip at a constant pressing pressure.

JP 58-77717 A JP-A-5-69040 JP-A-7-136715 JP 2002-282937 A Japanese Patent Laid-Open No. 8-10843

However, the prior art as described above has the following problems.
When the # 0 pinch roll is installed as a double pinch roll as in Patent Documents 1 to 3, if the # 0 pinch roll itself has an axis deviation or a differential load, the # 0 pinch roll causes a meandering factor. End up. Moreover, in order to prevent the steel strip from meandering with the winding tension, the # 0 pinch roll often requires a corresponding reduction load.
On the entry side of the # 0 pinch roll, the tail end of the steel strip becomes tensionless as in the general single pinch roll method, and therefore meandering due to the # 0 pinch roll cannot be prevented. Further, after the tail end of the steel strip passes through the # 0 pinch roll, a meandering factor similar to that in the single pinch roll method occurs. Furthermore, the addition of # 0 pinch rolls also causes problems in terms of equipment cost and installation space.

  Moreover, the method of restraining the edge part of a steel strip with a side guide like patent document 4 has an essential problem of damaging the edge part of a steel strip, as mentioned above. Moreover, in patent document 4, although it is supposed that both edge parts of a steel strip will be restrained below by making a side guide width | variety downward downward, if a steel strip is pushed too much by causes, such as a response delay of hydraulic control. The edge portion of the steel strip is pushed and bent downward between the transport rolls, causing problems of deformation and wrinkles. Moreover, as shown in FIGS. 61 to 63 to be described later, when the steel strip is laterally buckled between the side guide and the pinch roll, the steel strip may be used even if a special side guide as in Patent Document 4 is used. Will meander.

In addition, there are examples of devising pinch roll reduction control and torque control as a method for preventing the meandering of the steel strip, but the control response is poor because the tension at the tail end of the steel strip is a transient phenomenon. Often it will be sufficient.
In addition, it is difficult to bend a steel strip with a pinch roll and guide it to a coiler in a winding equipment for a thick steel strip (for example, a thickness of 5 mm or more) among steel strips, so it is called a bending roll. There is a case where a roll is attached and the steel strip is bent with this roll. However, such a roll only bends the steel strip in the winding direction, and is not capable of correcting the meandering of the steel strip. Absent.

On the other hand, in Patent Document 5, a steel strip is pressed and restrained from the width direction by a side guide, and the steel strip is wound in a shape in which the central portion is inflated, so that it can be wound well with little deviation in the width direction. In order to prevent the bulge in the center of the steel strip due to the restraint of the side guide from becoming larger than a certain level when winding such a steel strip, a pressing roll is placed above the inside of the side guide, Winding equipment is shown to prevent excessive bulging.
However, as described above, when the edge portion of the steel strip is strongly restrained by the side guide, there is a problem that the steel strip is rubbed. Further, since the steel strip width changes in the longitudinal direction, it is very difficult to restrain the steel strip with a constant pressing pressure in the width direction by the side guide in response to the width change. In addition, the pressing roll disposed inside the side guide is provided at a predetermined height (for example, 10 mm) above the pass line, and only acts to press after the steel strip is inflated. It is not something that can suppress or correct the meandering of the belt.

  Accordingly, an object of the present invention is to solve the above-described problems of the prior art, and to wind the metal strip that can effectively suppress the meandering of the metal strip caused by the pinch roll under a relatively simple equipment configuration. It is to provide a take-up facility and a winding method.

The present inventors have conducted a detailed study on the mechanism of meandering caused by pinch rolls at the tail end of the metal band and measures for preventing meandering. As a result, the following knowledge has been obtained.
First, when the meandering caused by the pinch roll is generated, if the deformation of the steel strip on the pinch roll entry side is emphasized, it is found that the metal strip is deformed out of plane as shown in FIGS. It was. Here, FIG. 61 is a plan view schematically showing the out-of-plane deformation of the metal band on the entrance side of the pinch roll when the meander due to the pinch roll occurs in the conventional metal band winding equipment, and FIG. A front view and FIG. 63 are also side views. This out-of-plane deformation is a deformation in which the metal band is raised (floating wrinkles) in the vertical direction, but is not a uniform deformation in the plate width direction like a loop, but one edge portion (FIGS. 61 to 63). In this case, it is considered to be a lateral buckling phenomenon of a thin plate, which is an out-of-plane deformation including a twist in which the edge portion on the right side in the traveling direction) is largely deformed. This is because the component force (thrust force) in the roll axial direction of the frictional force generated by the pinch roll 42, that is, the side slip force, and the direction of the reaction force caused by the contact of the metal strip at the side guide end are reversed in the plate width direction. Therefore, it is considered that the lateral buckling occurred in the metal band.

  In order to suppress the out-of-plane deformation generated in the metal strip by the side slip force caused by the pinch roll, it is effective to suppress the starting point of the generation. Then, the plate | board state between the side guide and pinch roll which an out-of-plane deformation | transformation of a metal strip observed was observed. At the pinch roll reduction point, there is nothing to constrain the sheeting angle of the metal band, and the metal band passes while maintaining a flat surface, whereas the side guide constrains the sheeting angle of the metal band, so the restraining force It has been found that the sheet passing angle of the metal strip changes near the downstream end (end) of the side guide where the lowering occurs. Here, the downstream end of the side guide is precisely the position on the most downstream side of the side guide where the metal band can be restrained. Therefore, in the case of the side guide that guides the metal band with the guide plate In the case of a side guide provided with a metal band guide guide roll at a position spaced in the longitudinal direction, the end of the guide plate corresponds to the most downstream guide roll. It has been found that the metal strip is unconstrained at the downstream end of the side guide, and the change in the plate passing angle is likely to occur, and this change in the plate passing angle is one factor causing the out-of-plane deformation of the metal strip. Then, when examining the places where out-of-plane deformation is likely to occur (places where the out-of-plane deformation starts), most of them are concentrated in specific areas on the upstream and downstream sides of the downstream end of the side guide. It has been found that it is effective to install means for preventing out-of-plane deformation in this region. On the other hand, as a result of examining the out-of-plane deformation preventing means, a non-driving type pressing roll that restrains the metal band with the metal band conveying roll is suitable. It was found that meandering of the metal band can be effectively suppressed by suppressing the displacement (out-of-plane deformation) upward of the pass line.

The present invention has been made on the basis of such knowledge and has the following gist.
[1] From the upstream side of the line, in a metal strip winding facility equipped with a side guide, pinch roll and coiler in this order,
Of the side guides, the position of the most downstream side where the metal band can be restrained is a, the position of the intermediate point between the position a and the pinch roll reduction point is b, and the distance between the position a and the position b is L, where c is a position in the side guide that is a distance L away from the position a upstream of the line,
Between the position c and the position b, as a metal band out-of-plane deformation prevention means, a non-drive-type pressing roll (X) that holds and restrains the metal band between the metal band and the transport roll is provided.
The pressing roll (X) is supported by a single supporting pressure reduction means. The supporting reduction means is a single roll support that rotatably supports the pressing roll (X), and a lower end portion of the roll support. A metal strip winding device characterized by having a support reduction arm that is pivotally attached to a central portion in the longitudinal direction and that holds the roll support so as to be swingable in the vertical direction with the pivoting portion as a fulcrum .
[2] From the upstream side of the line, in a metal strip winding facility equipped with a side guide, pinch roll and coiler in this order,
Of the side guides, the position of the most downstream side where the metal band can be restrained is a, the position of the intermediate point between the position a and the pinch roll reduction point is b, and the distance between the position a and the position b is L, where c is a position in the side guide that is a distance L away from the position a upstream of the line,
Between the position c and the position b, as a metal band out-of-plane deformation prevention means, a non-drive-type pressing roll (X) that holds and restrains the metal band between the metal band and the transport roll is provided.
The presser roll (X) is not supported by the supporting pressure reduction means, but comes into contact with the metal strip under its own weight, and is a metal strip winding facility.

[3] In the winding equipment of [1] or [2] , the first transport roll upstream from the position a, the first transport roll downstream from the position a, and the second transport downstream from the position a. A metal band winding facility, characterized in that a holding roll (X) is provided that sandwiches and restrains the metal band between one or more conveyance rolls selected from among the conveyance rolls.
[4] In the winding facility according to [1] or [2] , a pressing roll (X) is provided that holds and restrains a metal band with a conveyance roll closest to the position a. Winding equipment for metal strips as described in 1.
[5] In the winding equipment according to any one of [1] to [4 ] above, the side guide includes a guide roll for guiding the metal strip at a position spaced in the longitudinal direction thereof, and the most downstream guide roll A metal strip winding facility , wherein the center position of the metal strip is at position a .

[6] A metal strip winding device including a side guide, a pinch roll, and a coiler in this order from the upstream side of the line, and the most downstream position in the side guide that can restrain the metal strip A, a position of an intermediate point between the position a and the pinch roll reduction point, b, a distance from the position a to the position b, and a distance L from the position a to the upstream side of the line. When the position is c, a non-drive-type presser that restrains the metal band between the position c and the position b with the metal band sandwiched between the metal band as a means for preventing deformation of the metal band. In the metal strip winding equipment provided with the roll (X), when winding the metal strip, the rolling force of the metal strip by the pressing roll (X) is set to 1/5 or less of the pinch roll rolling force. Winding method for metal strips.
[7] In the winding method of [6 ] above, before the tail end portion of the metal strip passes through the position of the press roll (X), the press roll (X) is rotated without contacting the metal strip. In addition, when the tail end portion of the metal band passes through, the rotating pressing roll (X) is brought into contact with the metal band.

According to the present invention, the meandering of the metal band caused by the pinch roll is achieved by a relatively simple equipment configuration in which the non-driving-type pressing roll (X) that holds and restrains the metal band between the metal band transport rolls is provided. Can be effectively suppressed, and the winding of the metal band in the coiler can be prevented. For this reason, it is suitable as a winding equipment and a winding method for a metal strip having a plate thickness of 3 mm or less, particularly a metal strip having a significant meandering of 2 mm or less, which tends to cause meandering due to pinch rolls.
In addition, the press roll (X) provided in the present invention is a non-driving roll that restrains the metal band with the metal band transporting roll, and in the pass line direction to the metal band like a pinch roll. It is not intended to apply winding tension, but is a light reduction means that holds (presses) the metal band in the pass line plane or at a position below the pass line plane, so that the equipment scale and cost can be reduced. . Moreover, high-accuracy and high-precision control that detects and corrects meandering is not necessary, and the edge of the metal band is not actively restrained by the side guide. And side guide wear is low.

  In order to prevent the meandering of the metal band caused by the pinch roll and the winding of the metal band due to this, it is effective to bring the downstream end (termination) of the side guide closer to the pinch roll. If the moments of the side guides are the same, the length of the metal strip between the downstream end (end) of the side guide and the pinch roll (moment arm) will be shortened, and the reaction force at the side guide will increase, resulting in a plate width edge. The so-called ear hurt is increased. On the other hand, the present invention does not strengthen the restraining force in the plate width direction by a side guide or the like, but restrains the metal strip in the plate vertical direction. It can be effectively improved.

The top view which shows one Embodiment of the winding equipment of this invention 1 is a side view showing a side guide, a pinch roll, a presser roll X and the like in the embodiment of FIG. Arrow view along line III-III in Fig. 2 In the side guide of the embodiment of FIG. 1 to FIG. 3, a plan view showing a structure for attaching the most downstream guide roll to the side guide body, Side view of the mounting structure of FIG. Sectional view along line VI-VI in FIG. In the winding equipment of this invention, it shows one Embodiment at the time of using a disk roll as a guide roll of a side guide, Comprising: The plane which shows the attachment structure with respect to the side guide main body of the most downstream guide roll in a side guide Figure Side view of the mounting structure of FIG. Sectional view along line IX-IX in FIG. The front view which shows one Embodiment of the support pressure reduction means of the pressing roll X in the winding equipment of this invention Bottom view of the embodiment of FIG. Side view of the embodiment of FIG. The front view which shows other embodiment of the support pressure reduction means of the pressing roll X in the winding equipment of this invention. The front view which shows other embodiment of the support pressure reduction means of the pressing roll X in the winding equipment of this invention. 14 is a bottom view of the embodiment of FIG. The front view which shows other embodiment of the support pressure reduction means of the pressing roll X in the winding equipment of this invention. 16 is a bottom view of the embodiment of FIG. The side view which shows the pinch roll, the side guide, the pressing roll X, etc. in front of the metal band plate in other embodiment of the winding equipment of this invention In the embodiment of FIG. 18, a front view showing a pinch roll, a side guide, a pressing roll X, and the like before the metal band passing plate In the embodiment of FIG. 18, a side view showing a pinch roll, a side guide, a pressing roll X, and the like in a metal band passing plate. FIG. 18 is a front view showing a pinch roll, a side guide, a presser roll X, and the like in a metal band passing plate in the embodiment of FIG. The side view which shows the pinch roll, the side guide, the pressing roll X, etc. in front of the metal band plate in other embodiment of the winding equipment of this invention In the embodiment of FIG. 22, a front view showing a pinch roll, a side guide, a pressing roll X, and the like before the metal band passing plate The side view which shows the pinch roll, the side guide, the pressing roll X, etc. in front of the metal band plate in other embodiment of the winding equipment of this invention In the embodiment of FIG. 24, a front view showing a pinch roll, a side guide, a pressing roll X, and the like before the metal band passing plate In the embodiment of FIG. 24, a side view showing a pinch roll, a side guide, a pressing roll X, and the like in a metal band passing plate. In the embodiment of FIG. 24, a front view showing a pinch roll, a side guide, a presser roll X, and the like in a metal band passing plate Side view showing a pinch roll, a side guide, a presser roll X and the like in another embodiment of the winding equipment of the present invention. The side view which shows the pinch roll, the press roll X, etc. in other embodiment of the winding equipment of this invention Side view showing a pinch roll, a side guide, a presser roll X and the like in another embodiment of the winding equipment of the present invention. Side view showing a pinch roll, a side guide, a presser roll X and the like in another embodiment of the winding equipment of the present invention. FIG. 31 is a front view showing the presser roll X in the embodiment of FIG. In the embodiment of FIG. 31, the front view shown in a state in which the pressing roll X is retracted upward The side view which shows the pinch roll, the press roll X, etc. in other embodiment of the winding equipment of this invention The top view which shows one structural example of the support arm in embodiment of FIG. The top view which shows the other structural example of the support arm in embodiment of FIG. The top view which shows other embodiment of the winding equipment of this invention In the embodiment of FIG. 37, a side view showing a pinch roll, a side guide, a pressing roll X and the like The top view which shows the pressing roll X in other embodiment of the winding equipment of this invention in the state which expanded the side guide The top view which shows the pressing roll X in embodiment of FIG. 39 in the state which narrowed the side guide. The top view which shows the pressing roll X in other embodiment of the winding equipment of this invention in the state which expanded the side guide The top view which shows the pressing roll X in embodiment of FIG. 41 in the state which narrowed the side guide. 41 is a side view showing a pinch roll, a side guide, and a presser roll X in the embodiment of FIG. 41 is a cross-sectional view showing the support structure of the upper roll at the tip of the support arm in the embodiment of FIG. The top view which shows the pressing roll X in other embodiment of the winding equipment of this invention in the state which expanded the side guide The top view which shows the pressing roll X in embodiment of FIG. 45 in the state which narrowed the side guide. Side view showing a pinch roll, a side guide, a presser roll X and the like in another embodiment of the winding equipment of the present invention. 47 is a plan view showing the presser roll X in the embodiment of FIG. 47 is a cross-sectional view showing the support structure of the upper roll at the tip of the support arm in the embodiment of FIG. The side view which shows the holding | suppressing roll X in other embodiment of the winding equipment of this invention, and its support mechanism 50 is a front view showing the pressing roll X and its supporting mechanism in the embodiment of FIG. In the embodiment of FIG. 50, a front view showing the pressing roll X in the raised position and its support mechanism In the embodiment of FIG. 50, a side view showing the pressing roll X in the raised position and its support mechanism. Explanatory drawing which shows the position which installed the control roll X in the winding equipment (test apparatus) used by the test example In a test example, the graph which shows the coil winding deviation | shift amount of the example of this invention from which the installation position of the pressing roll X differs, and the comparative example which does not provide the pressing roll X In a test example, the graph which shows the relationship between the rolling-down force of the control roll X of this invention example, and coil winding deviation | shift amount Plan view showing conventional general steel strip winding equipment 57 is a side view of the steel strip winding facility of FIG. FIG. 57 is a schematic diagram showing a state in which meandering occurs due to a pinch roll when winding the tail end of the steel strip in the steel strip winding facility of FIG. Side view of the side guide in the steel strip winding facility of FIG. The top view which shows typically the out-of-plane deformation of the steel strip at the entrance side of the pinch roll when the meandering caused by the pinch roll occurs in the conventional steel strip winding equipment 61 is a front view schematically showing the deformation of the steel strip of FIG. 61 is a side view schematically showing deformation of the steel strip of FIG. Explanatory drawing which shows the pinch roll of the steel strip winding equipment of a prior art

The present invention is a winding device for a metal strip provided with a side guide, a pinch roll and a coiler in this order from the upstream side of the line, and in a specific region in the line direction, as an out-of-plane deformation preventing means for the metal strip, A non-drive-type pressing roll X that holds and restrains the metal band between the metal band conveyance rolls is provided.
Here, in the winding equipment according to the present invention, the pinch roll is composed of an upper and lower roll that restrains the metal band (both the upper and lower rolls are driven rolls), and guides the pass line of the metal band obliquely downward and winds the metal band. It refers to a roll for imparting take tension. Examples of the side guide include (1) a guide that guides a metal strip with a guide plate, and (2) a rotatable guide roll for metal strip guides (竪 rolls, discs) at positions spaced in the longitudinal direction. And the like, but may have any structure.

The non-drive type roll that is the holding roll X is a non-drive roll that is freely rotatable (free rotation). For example, the ease of rotation can be adjusted by adjusting the friction of the roll shaft against the bearing. May be.
In addition, since the press roll X may cause a new meandering factor due to a displacement (difference load) of the rolling load in the metal band width direction by the roll, a displacement of the rolling load in the metal band width direction occurs. It is preferable to take such care. In this sense, it is preferable that the pressing roll X is supported by a single supporting pressure reducing means, or is not supported by the supporting pressure reducing means, and is in contact with the metal strip by its own weight.

The roll shape of the pressing roll X may be a crown roll in addition to a normal flat roll. In particular, in the case of a convex crown roll (a crown roll having a large diameter at the central portion), the reduction by the central portion of the roll is the main component, so that a differential load is hardly generated.
The metal strip to be rolled up by the present invention is typically a steel strip such as a hot-rolled steel strip, but is not limited to this and can be any metal strip. In addition, when the object is a steel strip, a steel strip having a thickness of 3 mm or less, particularly a thin steel strip having a thickness of 2 mm or less, called a thin object, is likely to cause meandering of the tail end portion. It is particularly useful as a small steel strip winding facility and winding method.

1 to 3 show an embodiment of the winding equipment of the present invention. FIG. 1 is a plan view, FIG. 2 is a side view showing a side guide, a pinch roll, a press roll X, and the like. It is an arrow line view which follows the III-III line of FIG.
In the figure, reference numeral 1 denotes a metal belt transport roll device, which is composed of a large number of transport rolls 5. The transport roll 5 is generally a drive roll. Reference numeral 2 denotes a side guide provided on the transport roll device 1, and reference numeral 3 denotes a pinch roll provided on the downstream side of the side guide 2. The pinch roll 3 includes upper and lower rolls 300a and 300b. 4 is a coiler provided on the downstream side of the pinch roll 3. An apron guide 51 is provided between the transport roll device 1 and the pinch roll 3. The above equipment configuration is the same as that of the conventional winding equipment shown in FIGS.

The side guide 2 is provided with a guide strip 6 for guiding a metal strip at a plurality of locations spaced in the longitudinal direction, and the guide strip 6 guides the metal strip S. 4 to 6 show the attachment structure of the most downstream guide roll _{6E to} the side guide main body 200. FIG. 4 is a plan view, FIG. 5 is a side view, and FIG. 6 is a VI-VI line in FIG. FIG.
The guide roll 6 of the present embodiment is a saddle type roll (in the figure, 60 indicates a rotation axis of the saddle type roll) and is rotatably held by the side guide body 200. Each guide roll 6 has a portion in the circumferential direction protruding a predetermined length inside the side guide main body 200, and the metal band S is guided by the edge portion of the metal band S coming into contact with the protruding portion. .

Here, a position on the most downstream side where the metal strip S can be restrained in the side guide 2 is defined as a. Side guide 2 of the present embodiment because it is intended to restrain the metallic strip S by the guide roll 6, the center position of the most downstream side of the guide roll 6 _E is the position a. Further, the position of the intermediate point between the position a and the pinch roll reduction point is b, the distance between the position a and the position b is L, and the position in the side guide that is separated from the position a by the distance L upstream of the line is c. And
According to the knowledge of the present inventors, the region between the position c and the position b is a region where the out-of-plane deformation is most likely to occur (region where the out-of-plane deformation starts). Between the position c and the position b, a non-drive-type pressing roll X that holds and restrains the metal band with the transport roll 5 is provided as an out-of-plane deformation preventing means for the metal band. If these conditions are satisfied, two or more pressing rolls X may be provided. Here, the arrangement of the pressing roll X in the range between the position c and the position b means that the center (axial center) of the pressing roll X is located within those ranges.

Further, the positions that are particularly effective for providing the pressing roll X are the first transport roll 5 _R on the upstream side of the position a, the first transport roll 5 _{S on} the downstream side of the position a, and the downstream side of the position a. At each position of the second transport roll 5 _T , therefore, a pressing roll X is provided at the position of one or more transport rolls 5 selected from these, and the metal strip S is sandwiched between the transport roll 5. It is preferable that it can be restrained by. Thereby, the out-of-plane deformation of the metal strip S can be particularly effectively suppressed.
In addition, since the point that is most likely to be the starting point of the out-of-plane deformation of the metal strip S is the position a, a pressing roll X is provided at the position of the transport roll 5 closest to the position a, and the metal between the transport roll 5 and the metal Most preferably, the belt S can be restrained with the band S interposed therebetween. Thereby, the out-of-plane deformation of the metal strip S can be particularly effectively suppressed.
In the present embodiment, a pressing roll X is provided at the position of the first transport roll 5 _{S on} the downstream side of the position a so that the metal band S can be restrained with the transport roll 5 _S. The transport roll 5 _S is also the transport roll closest to the position a, and by arranging the pressing roll X here, the out-of-plane deformation of the metal strip S can be most effectively suppressed.
In addition, as the guide roll 6 which the side guide 2 has, a disk roll etc. other than the saddle type roll as shown in FIGS. 1-3 is used, and any type of guide roll may be sufficient.

7 to 9, there is shown an embodiment of a case of using a disk rolls as the guide roll 6, which shows the mounting structure for the side guide body 200 on the most downstream side of the guide roll 6 _E, 7 is a plan view, FIG. 8 is a side view, and FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. The guide roll 6 of the present embodiment is a disc roll having a conical or truncated cone shape (in the figure, 60 indicates a rotation axis of the disc roll), and is rotatably held by the side guide body 200. Each guide roll 6 has a portion in the circumferential direction protruding a predetermined length inside the side guide main body 200, and the metal band S is guided by the edge portion of the metal band S coming into contact with the protruding portion. .

Further, the side guide 2 may not be provided with a guide roll and may be of a type in which a metal strip is guided by a guide plate (side guide main body). In the case of such a side guide 2, the edge portion of the metal strip is provided on the guide plate. The metal band is guided by the contact. Therefore, in the case of this type of side guide 2, the most downstream end (terminal) of the guide plate (side guide body) is the position a.
The axis of the press roll X and the transport roll 5 that are constrained by sandwiching the metal band S between the upper and lower sides may be eccentric (offset) in the line direction. Since it will be restrained by the position, in order to hold the metal strip in the pass line plane as much as possible, it is preferable that the axial centers of both rolls are on the same vertical plane.

When out-of-plane deformation (lateral buckling) occurs and the metal band S raised due to this out-of-plane deformation is to be suppressed from above, a large load is required. There is a problem that folds. On the other hand, the pressing roll X of the present invention is intended to substantially suppress the occurrence of such out-of-plane deformation itself. On the other hand, the holding roll X does not require any function of applying a winding tension to the metal band S, bending the metal band S, or returning the warp. What is necessary is just to be able to hold | maintain below a pass line surface.
The press roll X only needs to press a slight bulge at the initial stage of the out-of-plane deformation start, and therefore may be a light pressure load. And by setting it as a light pressure under load in this way, it is less likely to generate a meandering factor by the press roll X itself, and this point is also different from the conventional double pinch roll system.

When both ends of the presser roll X are supported by independent support reduction means, the moment due to the deviation (differential load) of the reduction load in the metal band width direction may become a new meandering factor. X is preferably in one of the following forms (1) and (2).
(1) The pressing roll X is supported by a single supporting pressure reduction means.
(2) The pressing roll X contacts the metal strip by its own weight without being supported by the supporting pressure reduction means.
Further, in the case of the form of (1), the support reduction means has a single roll support that rotatably supports the press roll X, and a lower end portion pivotally attached to the center in the longitudinal direction of the roll support. It is preferable that the roll support has a supporting pressure reduction arm that holds the roll support so as to be swingable in the vertical direction with the pivoting portion as a fulcrum. In such a support pressure reduction means, since the roll support can swing in the vertical direction, the pressing roll X can freely tilt in the vertical direction, and the metal strip S has a wedge as shown in FIG. However, since it can incline along this, the differential load in a metal band width direction is hard to produce especially.

FIGS. 10 to 12 show an embodiment in which the pressing roll X is supported by such a supporting pressure reduction means (elevating device), FIG. 10 is a front view, FIG. 11 is a bottom view, and FIG. FIG.
The support pressure reduction means 10 has roll bearing portions 12 at both ends, and a roll support body 11 that rotatably supports both ends (roll shaft 100) of the pressing roll X by the both roll bearing portions 12, and a lower end portion thereof. The roll support 11 is composed of a support reduction arm 13 pivotally attached to the center in the longitudinal direction of the roll support 11. The roll support 11 can swing in the vertical direction in the metal band width direction with the support attachment arm 13 as a fulcrum. Is held in. In order to pivotally support the lower arm 13 in the longitudinal direction of the roll support 11, support shafts 14 are provided on both sides of the center of the roll support 11 in the longitudinal direction. A bracket 15 at the lower end is pivotally supported rotatably. The support reduction arm 13 includes a reduction mechanism 16 such as a cylinder device.

Further, in this embodiment, in order to allow the pressing roll X to reduce the metal band width direction as evenly as possible, in the vertical direction, the pivot axis position of the pressing roll X and the support pressing arm 13 (support shaft 14). ) Are made to coincide with each other so that the rolling load by the support rolling arm 13 does not cause a component force other than the rolling direction.
As described above, the pressing roll X is supported symmetrically by the single support pressure reduction means 10, more specifically, the support including the roll support 11 and the support reduction arm 13 that holds the roll support 11. Since the metal strip S can be uniformly rolled down in the width direction by supporting it with the rolling-down means 10, it is possible to prevent a moment from being generated due to a shift (differential load) of the rolling load in the metal band width direction. In addition, as described above, the roll support 11 can swing in the vertical direction with the support shaft 14 (the pivoting portion) as a fulcrum, and the pressing roll X can freely tilt in the vertical direction. The differential load in the width direction is particularly difficult to occur.
In this embodiment, the roll shafts 100 at both ends of the presser roll X are rotatably supported by the both roll bearing portions 12, but the roll shaft 100 (roll holding shaft) is the roll support 11. It is good also as a structure which fixed to the roll and hold | maintained the roll main body with respect to this roll axis | shaft 100 rotatably.

FIG. 13 is a front view showing another embodiment in the case where the pressing roll X is supported by the support reduction means, as in FIGS. 10 to 12.
In this embodiment, the center of the pivoting position (support shaft 14) of the support pressure lower arm 13 with respect to the roll support 11 is positioned above the roll axis of the press roll X.
In such a structure, the roll axis of the press roll X and the center of the pivoting position (support shaft 14) of the support reduction arm 13 do not coincide with each other in the vertical direction, so the reduction load by the support reduction arm 13 is in the reduction direction. It is preferable that the vertical distance k between the roll shaft center of the presser roll X and the center of the pivoting position (support shaft 14) of the support pressure lower arm 13 is as small as possible. Specifically, the distance is preferably equal to or less than the distance corresponding to the roll diameter of the pressing roll X.
Other configurations are the same as those of the embodiment of FIGS.

14 and 15 show another embodiment in the case where the pressing roll X is supported by the supporting pressure reduction means, as in FIGS. 10 to 12, wherein FIG. 14 is a front view and FIG. 15 is a bottom view.
In this support pressure reducing means 10, a roll support 11 is composed of a central body 110 and a pair of roll holding shafts 111x and 111y provided on both sides thereof, and this pair of roll holding shafts 111x and 111y. The presser roll X is composed of the rolls 50x and 50y that are rotatably held in the respective parts.

The lower end of the support pressure lower arm 13 is pivotally attached to the main body 110 of the roll support 11, and the roll support 11 is held by the support pressure lower arm 13 so as to be swingable in the metal band width direction. In order to pivotally attach the support pressure lower arm 13 to the main body 110 of the roll support body 11, support shafts 14 are provided on both sides of the main body 110, and a bracket 15 at the lower end of the support pressure lower arm 13 is attached to both the support shafts 14. It is pivotably supported. The support reduction arm 13 includes a reduction mechanism 16 such as a cylinder device.
Also in this embodiment, in order to allow the pressing roll X to reduce the metal band width direction as evenly as possible, in the vertical direction, the pivot axis position of the pressing roll X and the support pressing arm 13 (support shaft 14). ) Are made to coincide with each other so that the rolling load by the support rolling arm 13 does not cause a component force other than the rolling direction.

FIGS. 16 and 17 show another embodiment in the case where the pressing roll X is supported by the support pressure reducing means, as in FIGS. 10 to 12. FIG. 16 is a front view and FIG. 17 is a bottom view.
This embodiment is an effective structure in the case where a single supporting and reducing arm 13 as shown in FIGS. 10 to 12 cannot be disposed directly above the metal strip S to be passed due to restrictions on equipment.
The support pressure reduction means 10 includes a roll support 11 and a support pressure reduction arm 13 that holds the roll support 11. Of these, the support structure of the roll support 11 and the pressing roll X is the embodiment shown in FIGS. 10 to 12. It is the same.

On the other hand, the support reduction arm 13 includes a pair of arms 130x and 130y having a reduction mechanism 16 such as a cylinder device, and a frame-like support member 131 held at both ends by the pair of arms 130x and 130y. The roll support 11 is arranged inside the frame-shaped support member 131, and the center of the roll support 11 in the longitudinal direction is pivotally attached to the center of the roll support 11 in the longitudinal direction. The body 11 is held by the support pressure lower arm 13 so as to be swingable in the metal band width direction. In order to pivotally support the support member 131 at the center in the longitudinal direction of the roll support 11, support shafts 14 are provided on both sides of the center in the longitudinal direction of the roll support 11. A central portion in the longitudinal direction of the member 131 is pivotally supported.
13, 14, 15, 16, and 17 described above have basically the same functions as the support pressure reducing means 10 in FIGS. 10 to 11.

In the case of hot rolling or the like, until the metal strip tail passes through the finishing mill, the sheeting with the pinch roll is relatively stable, so the press roll X passes through the finishing mill. It is effective to contact the metal strip for a while. For this reason, it is preferable that the pressing roll X is configured to be vertically movable.
Moreover, when making the press roll X contact a metal strip, it is preferable to make the circumferential speed of the press roll X close to the plate passing speed of the metal strip, and to prevent the metal strip from being wrinkled. The peripheral speed of the pressing roll X in this case may be the same as the peripheral speed of the transport roll 5 (in the case of a metal band tail end, the peripheral speed is several to several tens of percent slower than the sheet feeding speed).

As a specific method, the press roll X is sufficiently rotated by bringing the press roll X into contact with another rotational drive roll (for example, a transport roll or a pinch roll) before the tail end portion of the metal band passes through. It is effective to let the metal belt stand by in the idling state while the central part passes through from the metal band tip, and to contact the metal band S when the tail end part of the metal band passes through the plate. is there. For example, before the metal strip S passes through the position of the press roll, the press roll X is brought into contact with the transport roll 5 to rotate the press roll X, and the roll is waited upward. In particular, the rotating presser roll X is lowered and brought into contact with the metal strip S when the tail end portion of the metal strip passes through the presser roll position. In this case, in order to maintain the rotational speed of the pressing roll X waiting on the upper side, it is effective to attach a flywheel or the like that rotates integrally with the pressing roll X, for example.
In addition, when the rotation of the holding roll X waiting in the upper direction cannot be sufficiently maintained until the time of passing the tail end portion of the metal band, the holding roll X is brought into contact with the metal band from the time of passing the central part of the metal band. However, there is no problem because the load is light.

When the presser roll X is brought into contact with the drive roll and rotated in advance, an auxiliary roll that rotates integrally with the presser roll X is provided on the same axis as the presser roll X, and the presser roll X is utilized by using this auxiliary roll. You may make it provide rotation to.
FIGS. 18-21 shows one Embodiment of the winding equipment provided with such an auxiliary | assistant roll, FIG. 18 is a side view which shows the pinch roll and the pressing roll X in front of a metal banding board, FIG. FIG. 20 is a front view, FIG. 20 is a side view showing a pinch roll and a presser roll X in the metal band plate, and FIG. 21 is a front view.

The pressing roll X is supported, for example, by a support pressure lowering means 10 (elevating device) as shown in FIGS. 10 to 12 so as to be rotatable and vertically movable, or as shown in an embodiment described later, By being guided by the guide or held by the support arm, the metal strip is brought into contact with its own weight. A pair of auxiliary rolls 7 having a diameter larger than that of the pressing roll X are attached and fixed to the roll shafts 100 at both ends of the pressing roll X so as to rotate integrally with the pressing roll X.
The radius R and the pressing roll X radius r _U of the auxiliary roll 7 shall satisfy the following conditions. Here, t is the minimum thickness of the metal strip S to be passed.
R> r _U
R−r _U <t

In such a winding facility, as shown in FIG. 18 and FIG. 19, the press roll X is lowered and the auxiliary rolls 7 at both ends thereof are brought into contact with the transport roll 5 that is a drive type roll before the metal band passing plate. Let As a result, the auxiliary roll 7 is rotated by the frictional force with the transport roll 5, and the pressing roll X integrated therewith also rotates. At this time, a clearance α (= R−r _U <t) smaller than the minimum plate thickness t of the metal strip S is formed between the press roll X and the transport roll 5.
After the rotation is applied to the pressing roll X through the auxiliary roll 7 in this way, the pressing roll X is raised and waited upward, and the metal band S (particularly the tail end portion of the metal band) passes through the pressing roll position. In doing so, the presser roll X is lowered again. Here, since the clearance α is smaller than the minimum plate thickness t of the metal band S, as shown in FIG. 20 and FIG. S is pinched. Of course, at this time, the auxiliary roll 7 is separated from the transport roll 5.

Alternatively, the auxiliary roll 7 may be provided on the transport roll 5, and the auxiliary roll 7 may be brought into contact with the pressing roll X to apply a rotational force to the pressing roll X.
22 and FIG. 23 show an embodiment of a winding facility provided with such an auxiliary roll, FIG. 22 is a side view showing a pinch roll and a presser roll X in front of a metal plate, FIG. It is also a front view.
The presser roll X is supported, for example, by a support pressure lowering means 10 (elevating device) as shown in FIGS. 10 to 12 so as to be rotatable and vertically movable, or as shown in an embodiment described later, By being guided by the guide or held by the support arm, the metal strip is brought into contact with its own weight.

A pair of auxiliary rolls 7 having a diameter larger than that of the transport roll 5 is attached and fixed to the roll shafts 500 at both ends of the transport roll 5 so as to rotate integrally with the transport roll 5.
The radius R of the auxiliary roll 7 and the radius r _L of the transport roll 5 satisfy the following conditions. Here, t is the minimum thickness of the metal strip S to be passed.
R> r _L
R−r _L <t

In such a winding facility, as shown in FIG. 22 and FIG. 23, the press roll X is lowered and brought into contact with the auxiliary rolls 7 at both ends of the transport roll 5 which is a drive type roll before the metal band passing plate. . As a result, the pressing roll X is rotated by the frictional force with the auxiliary roll 7. At this time, a clearance α (= R− _{L L} <t) smaller than the minimum plate thickness t of the metal strip S is formed between the press roll X and the transport roll 5.
After the rotation is applied to the pressing roll X through the auxiliary roll 7 in this way, the pressing roll X is raised and waited upward, and the metal band S (particularly the tail end portion of the metal band) passes through the pressing roll position. In doing so, the presser roll X is lowered again. Here, since the clearance α is smaller than the minimum plate thickness t of the metal band S, the pressing roll X contacts the metal band S and sandwiches the metal band S with the transport roll 5. Of course, at this time, the auxiliary roll 7 is separated from the pressing roll X.

Further, in the method using the auxiliary roll as described above, the rotational peripheral speed of the pressing roll X is rotated faster than the sheet feeding speed in consideration of the speed reduction until the tail end portion of the metal band passes. If desired, auxiliary rolls that contact each other are provided on the transport roll 5 and the press roll X, and the peripheral speed ratio between the auxiliary rolls may be selected.
FIGS. 24 to 27 show an embodiment of a winding equipment having such a structure. FIG. 24 is a side view showing a pinch roll and a press roll X in front of a metal banding plate, and FIG. FIG. 26 is a front view, FIG. 26 is a side view showing a pinch roll and a pressing roll X in the metal band passing plate, and FIG. 27 is a front view of the same.

The presser roll X is supported, for example, by a support pressure lowering means 10 (elevating device) as shown in FIGS. 10 to 12 so as to be rotatable and vertically movable, or as shown in an embodiment described later, By being guided by the guide or held by the support arm, the metal strip is brought into contact with its own weight. A pair of upper auxiliary rolls 8 having a diameter smaller than that of the pressing roll X is attached and fixed to the roll shafts 100 at both ends of the pressing roll X so as to rotate integrally with the pressing roll X. On the other hand, a pair of lower auxiliary rolls 9 having a larger diameter than the transport roll 5 are attached and fixed to the roll shafts 500 at both ends of the transport roll 5 so as to rotate integrally with the transport roll 5.
The radius R _U of the upper auxiliary roll 8, and the radius r _U of the pressing roll X, and the radius R _L of the lower auxiliary roll 9, with a radius r _L transport rollers 5 are intended to satisfy the following condition. Here, t is the minimum thickness of the metal strip S to be passed.
R _U <R _L
R _U <r _U
R _L > r _L
(R _U −r _U ) + (R _L −r _L ) <t

In such a winding facility, as shown in FIGS. 24 and 25, the press roll X is lowered before the metal band passing plate, and the upper auxiliary rolls 8 at both ends thereof are moved to the lower auxiliary rolls 9 at both ends of the transport roll 5. Abut. Thereby, the upper auxiliary roll 8 is rotated by the frictional force with the lower auxiliary roll 9, and the pressing roll X integrated therewith also rotates. In this case, when the peripheral speed of the transport roll 5 is V ₀ , the peripheral speed V of the pressing roll X is as follows.
V = V ₀ × (R _L / r _L ) × (r _U / R _U )
Therefore, the circumferential speed of the pressing roll X can be made larger than the circumferential speed V ₀ of the transport roll 5. At this time, a clearance α (= (R _U −r _U ) + (R _L −r _L ) <t between the pressing roll X and the transport roll 5 is smaller than the minimum thickness t of the metal strip S. ) Is formed.

After the rotation is applied to the pressing roll X through the auxiliary rolls 8 and 9 as described above, the pressing roll X is raised and waited upward, and the metal band S (particularly, the tail end portion of the metal band) determines the position of the pressing roll. When passing the plate, the pressing roll X is lowered again. Here, since the clearance α is smaller than the minimum plate thickness t of the metal band S, as shown in FIGS. 26 and 27, the pressing roll X abuts on the metal band S, and the metal band S is in contact with the transport roll 5. Pinch. Naturally, at this time, the upper auxiliary roll 8 is separated from the lower auxiliary roll 9.
In addition, the circumferential speed of the pressing roll X that is rotated in advance before passing the metal band as described above is calculated by calculating the deceleration amount until the metal band (particularly the tail end portion of the metal band) is passed, It is preferable to set an appropriate peripheral speed so that the metal band S can be contacted at a speed close to. For this purpose, the radii of the upper auxiliary roll 8 and the lower auxiliary roll 9 are appropriately selected.

When the press roll X is brought into contact with the drive roll and rotated in advance, a pinch roll or a drive type pre-rotation roll can be used as the drive roll. In this case, the press roll X can be moved up and down. And make contact with these drive rolls directly or via other rolls. In these cases, the pressing roll X can be rotated even after passing through the metal strip.
FIG. 28 shows an embodiment of a winding facility that uses a pinch roll as a drive roll for pre-rotation, and is a side view showing a side guide, a pinch roll, a pressing roll X, and the like.

  The pressing roll X is configured to be movable up and down. About the mechanism which raises / lowers the holding | suppressing roll X up and down, you may make it raise / lower the support pressure reduction means 10 itself by expansion / contraction of the support pressure reduction means 10 as shown in FIGS. 10-12, or implementation mentioned later. As shown in the form, a lift guide is provided on both sides of the pass line, and a roll shaft at both ends of the pressing roll X or a roll bearing supporting the roll shaft is held by the lift guide so as to be slidable in the vertical direction, A system in which the pressing roll X is rotatably supported by a support arm that is rotatable in the vertical direction may be used.

When the pressing roll X is directly brought into contact with the upper roll 300a of the pinch roll 3 (hereinafter referred to as “upper pinch roll 300a” for convenience of explanation), the rotation direction of the pressing roll X is opposite to the metal band passing plate direction. The rotatable intermediate roll 52 that comes into contact with both the holding roll X and the upper pinch roll 300a in the raised position (that is, interposed between the holding roll X and the upper pinch roll 300a in the raised position) is located above the pass line. Is provided. The intermediate roll 52 of this embodiment is installed in a state of being in constant contact with the upper pinch roll 300a, and is rotated by the rotational driving force of the upper pinch roll 300a. By raising the pressing roll X and bringing it into contact with the intermediate roll 52, the rotation of the upper pinch roll 300 a is transmitted to the pressing roll X through the intermediate roll 52, and the pressing roll X rotates.
Note that a plurality (odd number) of intermediate rolls 52 may be provided in parallel to transmit rotation sequentially.

FIG. 29 shows another embodiment of the intermediate roll 52. In this embodiment, the intermediate roll 52 is installed in a state where it is always in contact with the pressing roll X. Therefore, the rotation of the upper pinch roll 300a is transmitted to the press roll X through the intermediate roll 52 by raising the press roll X and the intermediate roll 52 integrally and bringing the intermediate roll 52 into contact with the upper pinch roll 300a.
In the winding equipment as described above, before the tail end portion of the metal band S passes through the press roll position, the press roll X (or the press roll X and the intermediate roll 52) is raised and the intermediate roll 52 is interposed. Rotation is given by contacting with the upper roll 300a of the pinch roll, and when the tail end portion of the metal strip S passes through the press roll position, the rotating press roll X is lowered to contact the metal strip S. Let

FIG. 30 shows an embodiment of a winding facility provided with a pre-rotation roll as a drive roll, and is a side view showing a side guide, a pinch roll, and a pressing roll X. The pressing roll X is configured to be vertically movable as in the embodiment of FIG. A drive-type pre-rotation roll 53 is provided above the pass line, and the presser roll X that has been lifted rotates by contacting the pre-rotation roll 53.
In such winding equipment, before the tail end portion of the metal band S passes through the press roll position, the press roll X is raised and brought into contact with the pre-rotating roll 53 that is driven to rotate. When the tail end portion of the metal band S passes through the pressing roll position, the rotating pressing roll X is lowered and brought into contact with the metal band S.

The pressing roll X may be abutted (contacted) with the metal band S by its own weight without being supported by the supporting pressure reduction means as shown in FIGS. Examples of this method include the following.
(I) A pair of elevating guides are provided on both sides of the pass line, and the roll shafts at both ends of the presser roll X or the roll bearings supporting the roll shafts are held by the pair of elevating guides so as to be slidable in the vertical direction. Things to make
(II) A presser roll X is rotatably supported by a support arm that is rotatable in the vertical direction.

Thus, the press roll X that makes contact (contact) with the metal band S by its own weight can tilt along the wedge even when the metal band S has a wedge as shown in FIG. Differential load in the direction is difficult to occur.
Moreover, in order to obtain such an effect more appropriately, it is preferable to have a structure in which the pressing roll X can tilt as freely as possible in the vertical direction. In this sense, in the form (I), it is preferable to provide an appropriate play between the lifting guide and the roll-side member guided by the lifting guide. Similarly, in the form of (II) above, (1) both ends of the presser roll X are supported by a pair of independent support arms (one pair of support arms are not connected by a rigid body), (2) Provide play for expanding the range of tilting of the presser roll X in the support part of the presser roll X by the support arm. (3) Tilt range of the presser roll X in the vertical direction at the base end of the support arm It is preferable to employ one or more structures, such as providing play to expand

FIGS. 31 to 33 show an embodiment of the winding equipment having the structure (I), FIG. 31 is a side view showing a pinch roll and a pressing roll X, and FIG. 32 shows a pressing roll X. FIG. 33 is a front view showing the pressing roll X retracted upward.
In this embodiment, a pair of grooved lifting guides 17 are provided at both sides of the pass line (both sides in the metal band width direction), and roll bearings 18 are slidably disposed in the lifting guides 17 in the vertical direction. The both roll shafts 100 of the presser roll X are rotatably supported by the both roll bearings 18. That is, the roll bearing 18 that supports the roll shaft 100 of the pressing roll X is held by the pair of lifting guides 17 so as to be slidable in the vertical direction.

The pair of elevating guides 17 is provided on an arbitrary member 19 such as an entry guide so as to project inside. The elevating guide 17 has a structure for guiding the roll bearing 18 obliquely upward, but the guide direction may be a vertical direction. Further, the lifting guide 17 may guide the roll shaft 100 itself of the pressing roll X so as to be slidable in the vertical direction.
In order to retreat (standby) the press roll X to the upper position of the lift guide 17 when the press roll X is not used, a lift-up device having a lift arm 20 is attached. As shown in FIG. The lifting arm 20 supports the both roll bearings 18 or both roll shafts 100 so that the pressing roll X can be lifted up.

A weight can be added to the roll bearing 18 or the like as necessary in order to secure a load for pressing the metal strip S.
In the winding equipment of such an embodiment, the pressing roll X is not supported by the rolling support means, and the roll bearings 18 that support both ends thereof are merely held by the lifting guide 17 so as to be slidable in the vertical direction. Therefore, the presser roll X abuts (contacts) the metal strip S by its own weight including the roll bearing 18 (and a weight added as necessary). For this reason, if the weight balance in the metal band width direction of the pressing roll X and the roll bearing 18 is made uniform, a uniform reduction load can be applied to the metal band S in the width direction. Even if there is a wedge as shown, the pressing roll X only tilts along this, so that no differential load is generated in the metal band S.

FIG. 34 is a side view showing a pinch roll, a press roll X, and the like, which is an embodiment of the winding equipment having the structure (II).
In this embodiment, the support arm 70 is provided so that the base end thereof is pivotally supported 700 by an appropriate member 19 such as an entry guide so as to be pivotable in the vertical direction. Is supported rotatably. The support arm 70 rotates (swings) in the vertical direction with the pivot 700 as a fulcrum.
A member to which the support arm 70 is attached is arbitrary, and may be, for example, a side guide or a surrounding structure.

  Moreover, the support structure of the pressing roll X by the support arm 70 is also arbitrary. FIG. 35 and FIG. 36 show an example of a structure for supporting the pressing roll X by the support arm 70. In FIG. 35, support arms 70 are connected to both ends of a roll support 54 that holds both ends of the pressing roll X rotatably by bearings 542. In FIG. 36, the roll support 54 is composed of a central main body 540 and a pair of roll holding shafts 541x and 541y provided on both sides thereof, and the pair of roll holding shafts 541x and 541y The pressing roll X is composed of rolls 50x and 50y that are rotatably held. A single support arm 70 is connected to the main body 540 of the roll support 54.

A weight can be added to the support arm 70 or the like as necessary in order to secure a load for pressing the metal band S. In addition, in order to retract the holding roll X upward (standby), appropriate means for rotating and holding the support arm 70 upward can be provided. As such means, for example, a lift-up device that pulls the support arm 70 through a wire rope or the like and rotates and holds the support arm 70 or a pivotal support portion 700 of the support arm 70 to rotate the support arm 70. A driving mechanism for driving can be used.
Further, when the pressing roll X is supported by the support arm 70 as in the present embodiment, it is preferable to consider that the pressing roll X can be tilted as freely as possible in the vertical direction, as described above. For example, (1) the both ends of the press roll X are supported by a pair of independent support arms 70 (one pair of support arms 70 are not connected by a rigid body), and (2) the press roll by the support arms 70 The support portion of X is provided with a play for expanding the tilting range of the press roll X in the vertical direction. (3) The base end portion of the support arm 70 is provided for expanding the tilt range of the press roll X in the vertical direction. It is preferable to employ one or more structures such as providing play.

  In the winding equipment of the present embodiment, the pressing roll X is not supported by the reduction support means, but is only supported by the support arm 70 that is rotatable in the vertical direction. It contacts (contacts) the metal strip S by its own weight including 70 and the like. For this reason, if the weight balance in the metal band width direction, such as the pressing roll X and the support arm 70 that supports the press roll X, is made uniform, a uniform reduction load can be applied to the metal band S in the width direction. Even if there is a wedge as shown in FIG. 32, since the pressing roll X only tilts along this, a differential load is not generated in the metal band S.

Next, some embodiments of the winding equipment having the above-described structure (I) or (II), in which the pressing roll X is arranged inside the side guide 2, will be described.
Since the side guide 2 moves (position adjustment) in the width direction according to the width of the metal band, in the structure in which the pressing roll X is disposed inside the side guide 2, the pressing roll X functions regardless of the movement of the side guide 2. It is necessary to have a structure that can be demonstrated.
FIGS. 37 and 38 show a first embodiment of a winding facility in which the pressing roll X is arranged inside the side guide, FIG. 37 is a plan view, and FIG. 38 shows a pinch roll and a pressing roll X. It is a side view.

In this embodiment, a pressing roll X having relatively long roll shafts 100 at both ends is disposed inside the side guide 2, and both the roll shafts 100 are slits 21 (or long) formed in the vertical direction of the side guides 2. It extends (protrudes) to both outer sides of the side guide 2 through a hole-shaped through hole). Thereby, the side guide 2 can move in the metal band width direction without interfering with the roll shaft 100 or the like. Groove-shaped elevating guides 22 are provided on both sides of the side guide 2, and roll bearings 18 are slidably arranged in the elevating guides 22 in the vertical direction. An end portion of the roll shaft 100 is rotatably supported. That is, the roll bearing 18 that supports the roll shaft 100 of the pressing roll X is held by the pair of lifting guides 22 so as to be slidable in the vertical direction.
In addition, the raising / lowering guide 22 may guide the roll axis | shaft 100 itself of the holding | suppressing roll X so that a vertical slide is possible.

In addition, in order to ensure the load for pressing down the metal strip S, weight can be added to the roll bearing 18 or the like as necessary.
In the present embodiment, a press roll X having a relatively short roll length is used to constrain the central portion in the metal band width direction. Even in such an embodiment, the metal band S is placed in the pass line plane or from the pass line plane. However, there is no problem because it can be held at the lower position. Here, the roll length of the press roll X is arbitrary, and the preferable roll length (lower limit) varies depending on the rolling load by the roll, the thickness of the metal strip, the width of the metal strip, etc. Preferably has a roll length capable of restraining 30% or more of the width of the metal strip.
A lift-up device (not shown) similar to the embodiment shown in FIGS. 31 to 33 is provided to retract (standby) the press roll X to the upper position of the lifting guide 22 when the press roll X is not used. The lifting roller of the lift-up device supports the both roll bearings 18 (or both roll shafts 100) so that the holding roll X can be lifted up.

Even in the winding equipment of such an embodiment, the pressing roll X is not supported by the reduction support means, and the roll bearings 18 that support both ends thereof are merely held by the lifting guide 22 so as to be slidable in the vertical direction. Therefore, the presser roll X abuts (contacts) the metal strip S by its own weight including the roll bearing 18 and the like (and weight added as necessary). For this reason, if the weight balance in the metal band width direction of the pressing roll X and the roll bearing 18 is made uniform, a uniform reduction load can be applied to the metal band S in the width direction. Even if there is a wedge as shown, the pressing roll X only tilts along this, so that no differential load is generated in the metal band S.
Further, since the position of the side guide 2 can be adjusted in the metal band width direction without interfering with the pressing roll X and its roll shaft 100, the pressing roll X is made of metal regardless of the position of the side guide 2 in the metal band width direction. It can abut (contact) the belt S and exert its function.

39 and 40 show a second embodiment of the winding equipment in which the pressing roll X is arranged inside the side guide, and FIG. 39 is a plan view showing the pressing roll X in a state where the side guide is expanded. FIG. 40 and FIG. 40 are plan views showing the pressing roll X in a state where the side guide is narrowed.
In the present embodiment, the pressing roll X is disposed inside the side guide 2, and the support arms 23 are attached to the side guides 2 so as to be rotatable in the vertical direction. Is supported by

Each support arm 23 is disposed inside the side guide 2, and its base end portion is pivotally supported 230 by the side guide 2, and pivots (swings) in the vertical direction with the pivotal support portion 230 as a fulcrum. A roll support shaft 24 extending in the center direction of the line is provided at the tip of each support arm 23.
The holding roll X does not have a roll shaft, and instead has a shaft hole 25 for attaching the roll support shaft 24 to both ends. The pressing roll X is supported by the support arm 23 by inserting the roll support shaft 24 of each support arm 23 into the shaft holes 25 at both ends thereof so as to be rotatable and slidable in the longitudinal direction.

Even in the winding equipment of the present embodiment, the pressing roll X is not supported by the reduction support means, but is only supported by the support arm 23 that is rotatable in the vertical direction. It abuts (contacts) the metal strip S due to its own weight including 23. For this reason, if the weight balance in the width direction of the metal band such as the press roll X and the support arm 23 that supports the press roll X is made uniform, a uniform reduction load can be applied to the metal band S in the width direction. Even if there is a wedge as shown in FIG. 32, since the pressing roll X only tilts along this, a differential load is not generated in the metal band S.
Further, when the side guide 4 moves in the metal band width direction, the roll support shaft 24 slides in the longitudinal direction in the shaft hole 25 of the pressing roll X as shown in the drawing, and the length is adjusted. As described above, the position of the side guide 2 can be adjusted in the metal band width direction without interfering with the pressing roll X and the like, so that the pressing roll X is attached to the metal band S regardless of the position of the side guide 2 in the metal band width direction. It can abut (contact) and exert its function.

FIGS. 41 to 44 show a third embodiment of the winding equipment in which the pressing roll X is arranged inside the side guide, and FIG. 42 is a plan view showing the pressing roll X in a state where the side guide is expanded. 43, FIG. 43 is a plan view showing the pressing roll X with the side guide narrowed, FIG. 44 is a side view showing the pinch roll and the pressing roll X, and FIG. 45 shows the support structure of the pressing roll X at the tip of the support arm. It is sectional drawing.
In the present embodiment, a pair of left and right rolls X ₁ and X ₂ constituting the presser roll X are arranged inside the side guides 2, and support arms 26 are attached to both side guides 2 so as to be rotatable in the vertical direction. A pair of left and right rolls X ₁ and X ₂ are rotatably supported by both the support arms 26 via one roll support shaft 27.
Each support arm 26 is disposed inside the side guide 2, and a base end portion thereof is pivotally supported 260 on the side guide 2, and pivots (swings) in the vertical direction with the pivotal support portion 260 as a fulcrum. An insertion hole 261 is formed at the tip of the pair of support arms 26.

The roll support shaft 27 is supported by the support arm 26 by being inserted into the insertion holes 261 of the both support arms 26 so as to be slidable in the longitudinal direction. In this way, both ends of the roll support shaft 27 supported by the support arm 26 are located on both outer sides of the side guide 2 through slits 36 (or long hole-shaped through holes) formed in the vertical direction of the side guides 2. It extends (protrudes). Thereby, the side guide 2 can move in the metal band width direction without interfering with the roll support shaft 27.
The rolls X ₁ and X ₂ do not have a roll shaft, but instead have a shaft hole 37 through which the roll support shaft 27 is inserted. Then, the roll _X 1, the roll support shaft 27 into the shaft hole 37 of the _{X 2} that is inserted, rotatably and longitudinally slidably roll _X 1, _{X 2} a pair of left and right are relative to the roll support shaft 27 It is supported.

In order to allow the rolls X ₁ and X ₂ constituting the presser roll X to be always located inside the side guide 2 and to contact (contact) the vicinity of the edge portion of the metal band, The sleeve 28 having the center through hole 280 (the center through hole 280 constituting the shaft hole 37) communicated with the insertion hole 261 is fixed, and the roll support shaft 27 is slidable in the center through hole 280 of the sleeve 28. It is inserted. Rolls X ₁ and X ₂ are rotatably attached to the outside of the sleeve 28.
In the present embodiment, a pair of left and right rolls X ₁ and X ₂ having a short roll length are used to restrain both edge portions of the metal band S. In such an embodiment, the metal band S is placed in the pass line plane. There is no problem because it can be maintained.
Here, the roll lengths of the rolls X ₁ and X ₂ constituting the press roll X are arbitrary, and the preferable roll length (lower limit) is uniformly defined because it varies depending on the rolling load by the roll, the thickness of the metal strip, and the like. In general, it is preferable to have a roll length that can constrain 30% or more of the width of the metal strip in the total of both rolls.

Even in the winding equipment of the present embodiment, the rolls X ₁ and X ₂ constituting the presser roll X are not supported by the reduction support means, but are only supported by the support arm 26 that is rotatable in the vertical direction. Therefore, the rolls X ₁ and X ₂ come into contact (contact) with the metal strip S by their own weight including the support arm 26 and the like. For this reason, if the weight balance in the width direction of the metal band such as the rolls X ₁ and X ₂ and the support arm 26 that supports the rolls X ₁ and X ₂ is equalized, a uniform reduction load can be applied to the metal band S in the width direction. Even if the metal strip S has a wedge as shown in FIG. 32, the rolls X ₁ and X ₂ only tilt along this, so that no differential load is generated in the metal strip S.

When the side guide 4 moves in the metal band width direction, the support arm 26 and the rolls X ₁ and X ₂ slide in the longitudinal direction of the roll support shaft 27 as illustrated. At this time, the rolls X ₁ and X ₂ are held by the support arm 26 via the sleeve 28 and are always located inside the side guide 2. Thus, since the side guide 2 can be adjusted in position without interfering with the rolls X ₁ and X ₂ and the roll support shaft 27, the rolls X ₁ and X ₂ are positioned in the metal band width direction of the side guide 4. It can abut (contact) the vicinity of both edge portions of the metal strip S and exhibit its function.

45 and 46 show a fourth embodiment of the winding equipment in which the pressing roll X is arranged inside the side guide, and FIG. 45 is a plan view showing the pressing roll X in a state where the side guide is expanded. FIG. 46 and FIG. 46 are plan views showing the pressing roll X in a state where the side guide is narrowed.
In the present embodiment, a pair of left and right rolls X ₁ and X ₂ constituting the presser roll X are arranged inside the side guides 2, and support arms 29 are attached to both side guides 2 so as to be rotatable in the vertical direction. Each of the rolls X ₁ and X ₂ is rotatably supported by the both support arms 29.

Each support arm 29 is disposed inside the side guide 2, and a base end portion thereof is pivotally supported 290 by the side guide 4, and pivots (swings) in the vertical direction with the pivotal support portion 290 as a fulcrum. A roll support shaft 30 is provided at the tip of each support arm 29, and the rolls X ₁ and X ₂ are rotatably supported by the roll support shaft 30.
Also in this embodiment, both edge portions of the metal strip S are constrained by a pair of left and right rolls X ₁ and X ₂ having a short roll length, and preferred roll lengths of the rolls X ₁ and X ₂ are shown in FIGS. This is the same as the embodiment.

Even in the winding equipment of this embodiment, the rolls X ₁ and X ₂ constituting the presser roll X are not supported by the reduction support means, but are only supported by the support arm 29 that is rotatable in the vertical direction. Therefore, the rolls X ₁ and X ₂ come into contact (contact) with the metal strip S by their own weight including the support arm 29 and the like. For this reason, if the weight balance of the rolls X ₁ and X ₂ and the support arm 29 that supports the rolls X ₁ and X ₂ is made equal to the left and right, a uniform reduction load can be applied to the metal strip S in the width direction. Even if there is a wedge as shown in FIG. ₂ , since the rolls X ₁ and X ₂ only incline along this, no differential load is generated in the metal strip S.
Even if the side guide 2 moves in the metal band width direction, the rolls X ₁ and X ₂ and the support arm 29 that supports the rolls move together with the side guide 2, so that the rolls X ₁ and X ₂ are the side guide 2. Regardless of its position in the metal band width direction, it can abut (contact) near both edge portions of the metal band S and exert its function.

34, 39 and 40, FIGS. 41 to 44, 45 and 46 described above, a load for pressing the metal band S is secured to the support arms 23, 26, 29 and the like. In order to do so, weights can be added as needed. In addition, in order to retract (standby) the rolls X ₁ and X ₂ , appropriate means for rotating and holding the support arms 23, 26, and 29 can be attached. As this means, for example, a lift-up device or the like that pulls the support arms 23, 26, and 29 via a wire rope or the like and rotates them upward can be provided.

47 to 49 show a fifth embodiment of the winding equipment in which the pressing roll X is arranged inside the side guide, FIG. 47 is a side view showing the pinch roll and the pressing roll X, and FIG. 49 is a plan view showing the press roll X, and FIG. 49 is a cross-sectional view showing the support structure of the press roll X at the tip of the support arm.
In the present embodiment, a pair of left and right rolls X ₁ and X ₂ constituting the presser roll X are disposed inside the side guide 2, and the body of the drive motor 31 (swing motor) is fixed to both side guides 2. The support arm 32 is fixed to each rotary drive shaft 310. A roll guide shaft 33 is held on a slide guide of the support arm 32 so as to be slidable in the vertical direction, and a pair of left and right rolls X ₁ and X ₂ are rotatably supported via the roll support shaft 33. It is.
Each support arm 32 is disposed inside the side guide 2, and a base end portion thereof is fixed to the rotation drive shaft 310 of the drive motor 31. The rotation drive shaft 310 rotates (swings) in the vertical direction. A long hole-shaped guide hole 34 (slide guide) is formed at the tip of the pair of support arms 32 to guide the roll support shaft 33 so as to be slidable in the vertical direction.

The roll support shaft 33 is supported by the support arm 32 by being inserted into the guide holes 34 of both support arms 32 so as to be slidable in the vertical direction. In this way, both ends of the roll support shaft 33 supported by the support arm 32 are formed on both outer sides of the side guide 2 through slits 38 (or long hole-shaped through holes) formed in the vertical direction of both side guides 2. It extends (protrudes).
The rolls X ₁ and X ₂ constituting the presser roll X do not have a roll shaft, and instead have a shaft hole 39 through which the roll support shaft 33 is inserted. Then, the roll support shaft 33 is inserted into the shaft holes 39 of the rolls X ₁ and X ₂ (in this embodiment, the roll support shaft 33 is inserted into the shaft hole 39 via a sleeve 40 described later). A pair of rolls X ₁ and X ₂ are supported so as to be rotatable and slidable in the longitudinal direction with respect to the roll support shaft 33.

The roll X _1, X ₂ is always located inside the side guide 2, in order to be able to abut the vicinity of the edge portion of the metal strip S, roll X _1, X _2, each via respective sleeve 40 Locked to the support arm 32. That is, one end side of the sleeve 40 is inserted into the guide hole 34 of each support arm 32 and is held in the guide hole 34 so as to be slidable in the vertical direction. A pair of annular flange portions 402 is formed on one end portion side of the sleeve 40, and the pair of annular flange portions 402 engages with the edge portion of the guide hole 34, so that one end portion side of the sleeve 40 is on the guide hole 34. It is slidably held in the vertical direction. A roll support shaft 33 is slidably inserted into the central through hole 401 of the sleeve 40, and rolls X ₁ and X ₂ are rotatably attached to the outside on the other end side of the sleeve 40.

Also in this embodiment, both edge portions of the metal strip S are constrained by a pair of left and right rolls X ₁ and X ₂ having a short roll length, and preferred roll lengths of the rolls X ₁ and X ₂ are shown in FIGS. This is the same as the embodiment.
In the present embodiment, an entry guide 35 is provided on the entry side of the pressing roll X in order to avoid collision of the metal band tip with the roll support shaft 33, the support arm 32, and the like.
Even in the winding equipment of the present embodiment, the rolls X ₁ and X ₂ constituting the presser roll X are not supported by the reduction support means, and the roll support shaft 33 (and the sleeve 40) is guided by the guide hole 34 (slide guide). Therefore, the rolls X ₁ and X ₂ are brought into contact (contact) with the metal band S by their own weight including the roll support shaft 33. For this reason, if the weight balance of the rolls X ₁ and X _{2 in} the metal band width direction is equalized, a uniform reduction load can be applied to the metal band S in the width direction, and the metal band S is shown in FIG. Even if there is such a wedge, since the rolls X ₁ and X ₂ only tilt along this, no differential load is generated in the metal strip S.

When the side guide 2 moves in the metal band width direction, the support arm 32 and the rolls X ₁ and X ₂ slide in the longitudinal direction of the roll support shaft 33. At this time, the rolls X ₁ and X ₂ are held by the support arm 32 via the sleeve 40 and are always located inside the side guide 2.
Thus, since the position of the side guide 2 can be adjusted without interfering with the rolls X ₁ and X ₂ and the roll support shaft 33, the rolls X ₁ and X ₂ are positioned in the metal band width direction of the side guide 2. It can abut (contact) the vicinity of both edge portions of the metal strip S and exhibit its function.

The winding equipment and winding method of each embodiment shown in FIGS. 18 to 49 described above have the following characteristics.
[A] A pair of elevating guides are provided on both sides of the pass line, and the roll shafts at both ends of the presser roll X or the roll bearings supporting the roll shafts are held by the pair of elevating guides so as to be slidable in the vertical direction Take-up equipment.
[B] A slit or a through hole in which the press roll X is arranged inside the side guide, and a pair of lifting guides are provided at both side positions of the side guide, and roll shafts at both ends of the press roll X are formed in the side guide. And a roll bearing that supports the roll shaft or the roll bearing that supports the roll shaft so as to be slidable in the vertical direction.
[C] A winding facility in which the pressing roll X is rotatably supported by a support arm that is rotatable in the vertical direction.

[D] In the winding equipment of [C] above, the holding roll X is disposed inside the side guide, and a pair of support arms provided with roll support shafts are pivotally supported by the side guides so as to be rotatable in the vertical direction. Then, by inserting the roll support shafts of the respective support arms into the shaft holes formed at both ends of the press rolls X so as to be slidable and rotatable in the longitudinal direction, the press rolls X can be freely rotated on the pair of support arms. Winding equipment supported by
[E] In the winding equipment of [C] above, the pair of left and right rolls X ₁ and X ₂ constituting the presser roll X are arranged inside the side guides, and the pair of support arms are vertically moved to both side guides. The roll support shaft is supported by one pair of support arms so as to be slidable in the longitudinal direction, and both ends of the roll support shaft are connected to the side through slits or through holes formed in side guides. A winding facility in which the pair of rolls X ₁ and X ₂ are supported on the roll support shaft so as to be rotatable and slidable in the longitudinal direction while projecting to both outer sides of the guide.

[F] In the winding equipment of [C] above, a pair of left and right rolls X ₁ and X ₂ constituting the presser roll X are arranged inside the side guide and a pair of support arms provided with a roll support shaft Is wound around both side guides so as to be rotatable in the vertical direction, and the rolls X ₁ and X ₂ are rotatably supported on the roll support shafts of the pair of support arms.
[G] In the winding equipment of [C] above, the pair of left and right rolls X ₁ and X ₂ constituting the presser roll X are arranged inside the side guides, and the main body of the drive motor is fixed to both side guides. A support arm is fixed to each rotation drive shaft, and one roll support shaft is slidable in the vertical direction and slidable in the longitudinal direction on the slide guide of the pair of support arms. And a pair of rolls X ₁ and X ₂ are supported on the roll support shaft so as to be rotatable and slidable in the longitudinal direction. Winding equipment.

[H] In the winding equipment according to any one of [A] to [G] above, the pressing roll X can be moved up and down, and is coaxial on both ends of either the pressing roll X or the transport roll. A winding facility in which an auxiliary roll is attached so as to face the other roll, and the radius R of the auxiliary roll and the radius r of the roll provided coaxially with the auxiliary roll satisfy the following conditions.
R> r
R−r <t
However, t: Minimum thickness of the metal strip to be passed through [Li] In the winding equipment of any one of [A] to [G] above, the press roll X can be moved up and down, and each of the press roll X and the transport roll on both ends coaxially, it is attached above auxiliary roll and the lower auxiliary roll are each a radius R _U of the upper auxiliary roll, the radius r _U of the pressing roll X, and the radius R _L of the lower auxiliary roll, the radius of the transport rolls A metal strip winding device, wherein r _L satisfies the following conditions.
R _U <R _L
R _U <r _U
R _L > r _L
(R _U −r _U ) + (R _L −r _L ) <t
Where t is the minimum thickness of the metal strip

[N] In the winding equipment of any one of [A] to [G] above, the press roll X can be moved up and down, and the rotation is in contact with both the press roll X in the raised position and the upper roll of the pinch roll A winding facility having a flexible intermediate roll and transmitting the rotation of the upper roll of the pinch roll to the press roll X through the intermediate roll.
[Le] In the winding equipment according to any one of [A] to [G] above, the press roll X can be moved up and down and has a drive type pre-rotation roll that comes into contact with the press roll X in the raised position. Winding equipment.
[Wo] When winding the metal band in the winding facility described in [C] or [Re], before the metal band passes through the press roll position, the press roll X or the press roll X is on the same axis. When the attached auxiliary roll is brought into contact with the transport roll or the auxiliary roll provided coaxially with the transport roll, rotation is given to the press roll X, and when the metal strip passes through the press roll position, A winding method in which the rotating pressing roll X is in contact with a metal strip.

[Wa] When winding the metal band in the winding equipment described in [N] above, the presser roll X is raised before the tail end portion of the metal band passes through the presser roll position, and the intermediate roll is interposed. When the tail end portion of the metal strip passes through the press roll position, the rotating press roll X is lowered and brought into contact with the metal strip. Winding method.
[F] When winding the metal strip in the winding facility described in [L] above, the press roll X is lifted and rotated before the tail end portion of the metal strip passes through the press roll position. A winding method in which rotation is given by contacting with a rotating roll, and when the tail end portion of the metal strip passes through the press roll position, the rotating press roll X is lowered and brought into contact with the metal strip. .

50 to 53 show another embodiment of the winding equipment of the present invention. FIG. 50 is a side view showing the pressing roll X and its supporting mechanism, FIG. 51 is a front view, and FIG. FIG. 53 is a side view of the presser roll X and its supporting structure. In the figure, reference numeral 80 denotes a support structure portion (support frame) installed above the transport roll apparatus 1, and this support structure portion 80 includes an entry guide 35 supported and fixed to a structural member (not shown), and an upstream side. It is supported by a fixing member 88.
A support mechanism for the pressing roll X is disposed at an upper position on both sides in the width direction of the transport roll device 1, and a pair of lift cylinders 81 a and 81 b supported by the support structure 80, and the lift cylinders 81 a and 81 b. A stand 82 that can be moved up and down by the (cylinder rod), a roll holding / reducing cylinder 83 that is fixed to the center of the stand 82 in the width direction, and a presser roll X are rotatably supported, and the roll holding / reducing step is performed. It has the roll support body 84 hold | maintained at the cylinder 83 (cylinder rod 830) so that raising / lowering is possible.

The roll holding / reducing cylinder 83 is an air cylinder, and the cylinder rod 830 is connected (fixed) to the center of the roll support 84 in the width direction.
A guide mechanism 85 is provided between the roll support 84 and the gantry 82 so that the roll support 84 can be moved up and down stably. The guide mechanism 85 includes a pair of guide constituent members 85a provided on both sides in the width direction of the roll support body 84, and a guide constituent member 85b provided on the mount 82 so that the guide constituent member 85a is slidably engaged. It consists of In this embodiment, the guide constituent member 85a is constituted by a shaft protruding from a roll support 84, and the guide constituent member 85b is constituted by a cylinder into which the guide constituent member 85a is slidably inserted. However, other appropriate configurations may be used.

  The press roll X is configured by a roll body having a relatively short roll length, and restrains the central portion in the metal band width direction. The pressing roll X is rotatably supported by the roll support 84. As with the embodiment of FIG. 37 and the like, the roll length of the pressing roll X is arbitrary, and the preferable roll length (lower limit) varies uniformly depending on the rolling load by the roll, the plate thickness of the metal strip, the plate width, etc. In general, it is preferable that the roll length is such that it can restrain 30% or more of the width of the metal strip. For example, when the conveyance target is a metal band having a plate width of about 600 to 2000 mm, the pressing roll X having a roll length of about 200 to 500 mm can be obtained.

The press roll X is particularly preferably in position a according to the conditions of the present invention as described above (in the case where the side guide 2 includes a metal band guide guide roll, the center position of the most downstream guide roll). It is arranged so that it can be restrained with a metal band sandwiched between it and the transport roll 5 closest to.
The support structure 80 above the pedestal 82 is provided with a pre-rotation roll 86 that is rotationally driven by a driving device 87. The presser roll X that is raised as shown in FIGS. Rotational force is applied by contacting with

  In this embodiment, the pressing roll X is supported by a single supporting pressure reduction means. However, a roll support 84 that rotatably supports the pressing roll X is provided with a roll holding / reducing cylinder 83 (supporting pressure reduction arm). ) Is fixedly connected to the cylinder rod 830. Such a structure is different from the embodiment shown in FIGS. 10 to 12, and the presser roll X cannot freely tilt (tilt) in the vertical direction. It can be said that a differential load in the metal band width direction is likely to occur as compared with the structure shown. However, since the press roll X has a relatively short roll length, the press roll X is used with a relatively small rolling force (preferably 1/5 or less, preferably 1/10 or less of the pinch roll rolling force). And if it arrange | positions to the preferable position (conveyance roll) as mentioned above, even if a small differential load arises, problems, such as meandering, will hardly arise. Here, the preferable conveyance roll which arrange | positions the holding | suppressing roll X is the 1st conveyance roll upstream from the position a or / and the 1st conveyance roll downstream from the position a, Most preferably, it is most at the position a. It is a close transport roll.

  In this embodiment, as shown in FIGS. 52 and 53, the pressing roll X supported by the gantry 82 is lifted by driving the elevating cylinders 81a and 81b, and is brought into contact with the pre-rotating roll 86 to generate a rotational force. Is granted. As shown in FIGS. 50 and 51, the pressing roll X to which the rotational force is applied as described above is lowered by driving the elevating cylinders 81 a and 81 b, and an arbitrary reduction force is applied by the roll holding / reducing cylinder 83. The metal roll is squeezed and constrained with the transport roll 5.

  As described above, in the present invention, the press roll X only needs to press a slight bulge at the initial stage of the out-of-plane deformation, so it may be a light pressure load. There is little occurrence of a meandering factor by the pressing roll X itself. As specific reduction conditions, the greater the reduction force of the pinch roll, the greater the side slip force exerted on the metal band, and the metal band is more likely to be deformed out of plane. It is preferable to contact the metal strip with a rolling force of / 5 or less, preferably 1/10 or less.

[Test example]
Using a winding facility (testing device) equipped with a presser roll X having the structure shown in FIGS. 10 to 12, a test was conducted in which a plastic thin plate was wound around a coiler instead of a metal strip. In this test, the presser roll X was arranged at different positions on the upstream side of the pinch roll, and a winding test was performed in each case. In addition, as a comparative example, a similar winding test was performed using a conventional test apparatus without a pressing roll (no winding deviation countermeasures). 54, the position (i) (= the position corresponding to the position b defined by the present invention), the position (ii) (= the position corresponding to the position a defined by the present invention), the position (iii) shown in FIG. ) (= The position corresponding to the position c defined by the present invention). As for the pinch roll load conditions, both the present invention example and the comparative example were set to a lag rate of 20%, a reduction sum load of 16F, and a differential load of 0F.
In addition, since the holding | suppressing roll X of the example of this invention contact | abuts to the thin plate upper surface with dead weight, it rotated with the peripheral speed synchronized with the plate | board speed of the thin plate.

  55 (a) and 55 (b) show coil winding deviation amounts of the present invention example and the comparative example. The pressing force of the presser roll X in the example of the present invention was set at two levels of about 10% and about 20% of the pinch roll pressing force. FIG. 55 shows the coil winding deviation amount of the present invention example in% when the coil winding deviation amount of the comparative example is 100%. According to the same figure, the amount of coil winding deviation is significantly reduced in the example of the present invention compared to the comparative example, and in particular, the pressing roll X is in the position (ii) (= the position corresponding to the position a defined by the present invention). When installed, the amount of coil winding deviation is particularly significantly reduced.

  Further, in the example of the present invention in which the pressing roll X is arranged at the position (ii) in FIG. 54 (= the position corresponding to the position a defined by the present invention), a winding test is performed by changing the rolling force of the pressing roll X, The relationship between the pressing force of the pressing roll X and the amount of coil winding deviation was examined. The result is shown in FIG. The figure shows the coil winding deviation amount of the present invention example in% when the coil winding deviation amount of the comparative example is 100%. According to FIG. 56, even when the rolling force of the press roll X is 1/5 or less (20% or less) of the pinch roll rolling force, the amount of coil winding deviation can be sufficiently reduced, and the lower 1/10 or less. (10% or less), it can be seen that the amount of coil winding deviation is sufficiently small and at a level with no problem.

1 transport roll apparatus 2 side guide 3 pinch roll 4 coiler _{5,5 P, 5 Q, 5 R} , 5 S, 5 T transport rolls 6,6 _E guide roller 7 on the auxiliary roll 8 auxiliary roll 9 under auxiliary roll 10 supporting reduction Means 11 Roll support body 12 Roll bearing portion 13 Support pressure lower arm 14 Support shaft 15 Bracket 16 Reduction mechanism 17 Lift guide 18 Roll bearing 19 Member 20 Lift arm 21 Slit 22 Lift guide 23 Support arm 24 Roll support shaft 25 Shaft hole 26 Support arm 27 Roll support shaft 28 Sleeve 29 Support arm 30 Roll support shaft 31 Drive motor 32 Support arm 33 Roll support shaft 34 Guide hole 35 Entry guide 36 Slit 37 Shaft hole 38 Slit 39 Shaft hole 40 Sleeve 50x, 50y Roll 51 Apron guy 52 Intermediate roll 53 Pre-rotation roll 54 Roll support body 60 Rotating shaft 70 Support arm 80 Support structure part 81a, 81b Lifting cylinder 82 Base 83 Roll holding / reducing cylinder 84 Roll support body 85 Guide mechanism 85a Guide component 85b Guide component member 86 Pre-rotating roll 87 Drive device 88 Fixing member 100 Roll shaft 110 Main body portion 111x, 111y Roll holding shaft portion 130x, 130y Arm 131 Support member 200 Side guide main body 230 Pivoting portion 260 Pivoting portion 261 Insertion hole 280 Center through Hole 290 Pivot part 300a Upper roll 300b Lower roll 310 Rotation drive shaft 401 Center through hole 402 Annular flange part 500 Roll shaft 540 Main body part 541x, 541y Roll holding shaft part 542 Bearing 700 Pivot part 83 Cylinder rod X presser roll X _{1, X 2} rolls a, b, c position

Claims (7)

From the upstream side of the line, in a metal strip winding facility equipped with a side guide, pinch roll and coiler in this order,
Of the side guides, the position of the most downstream side where the metal band can be restrained is a, the position of the intermediate point between the position a and the pinch roll reduction point is b, and the distance between the position a and the position b is L, where c is a position in the side guide that is a distance L away from the position a upstream of the line,
Between the position c and the position b, as a metal band out-of-plane deformation prevention means, a non-drive-type pressing roll (X) that holds and restrains the metal band between the metal band and the transport roll is provided.
The pressing roll (X) is supported by a single supporting pressure reduction means. The supporting reduction means is a single roll support that rotatably supports the pressing roll (X), and a lower end portion of the roll support. A metal strip winding device characterized by having a support reduction arm that is pivotally attached to a central portion in the longitudinal direction and that holds the roll support so as to be swingable in the vertical direction with the pivoting portion as a fulcrum . From the upstream side of the line, in a metal strip winding facility equipped with a side guide, pinch roll and coiler in this order,
Of the side guides, the position of the most downstream side where the metal band can be restrained is a, the position of the intermediate point between the position a and the pinch roll reduction point is b, and the distance between the position a and the position b is L, where c is a position in the side guide that is a distance L away from the position a upstream of the line,
Between the position c and the position b, as a metal band out-of-plane deformation prevention means, a non-drive-type pressing roll (X) that holds and restrains the metal band between the metal band and the transport roll is provided.
The press roll (X) is not supported by a supporting pressure reduction means, but comes into contact with the metal band under its own weight, and is a metal band winding facility. Between one or more transport rolls selected from the first transport roll upstream from position a, the first transport roll downstream from position a, and the second transport roll downstream from position a 3. A metal band winding facility according to claim 1 or 2 , wherein a pressing roll (X) is provided to restrain the metal band by sandwiching the metal band. The metal band winding device according to claim 1 or 2 , further comprising a pressing roll (X) that holds and restrains the metal band between the conveyance roll closest to the position a. Side guides, one of the metal strip guide to a position spaced in the longitudinal direction with a guide roll, according to claim 1-4, characterized in that the center position of the most downstream side of the guide roll is located a The metal strip winding equipment described in Crab. From the upstream side of the line, a winding device for a metal strip provided with a side guide, a pinch roll and a coiler in this order, the position of the most downstream side where the metal strip can be restrained among the side guides a, The position of the intermediate point between the position a and the pinch roll reduction point is b, the distance between the position a and the position b is L, and the position in the side guide that is separated from the position a by the distance L upstream of the line is c. In this case, between the position c and the position b, as a means for preventing out-of-plane deformation of the metal band, a non-drive-type pressing roll (X In the metal strip winding facility provided with a metal strip), when the metal strip is wound , the metal belt rolling force by the press roll (X) is 1/5 or less of the pinch roll rolling force. How to wind the obi. Before the tail end portion of the metal strip passes through the position of the press roll (X), the press roll (X) is rotated without contacting the metal strip, and the tail end portion of the metal strip passes through. The method of winding a metal strip according to claim 6 , wherein the rotating pressing roll (X) is brought into contact with the metal strip.

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