JP2002046853A - Slab reversing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slab reversing device to eliminate deficiency to make a conventional device a large structure and cause flaw etc., on a slab surface to make reversing operation unstable etc., in the slab reversing device to reverse a slab material for inspection of the flaws etc., on a front and a back of the slab material to be carried on a roller table. SOLUTION: The slab reversing device is constituted of a plural number of C frames by stopping the slab material in the middle of carriage, elevating it for lifting and landing, moving it to a position with no hindrance for slab material reversing operation and laterally moving the reversed slab material to a line position and a rotating arm for reversion arranged between the C frames in the line direction and to carry out reversing operation by receiving the lifted slab material. Consequently, it is possible to carry out reversion of the slab material by a pair of the rotating arms for reversion, to eliminate the above deficiency, to arrange a drive device of the rotating arm for reversion by separating it from the line, to facilitate supply of motive power and increase longevity by improving a maintaining property without exposing it at high temperature.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slab reversing device for reversing a hot slab material conveyed on a roller table.

[0002]

2. Description of the Related Art Hot slab material, which has been tapped from a blast furnace and formed into a thick plate in a casting process, is conveyed on a roller table in order to detect the state of flaws on the upper and lower surfaces before rolling. It is necessary to turn over the slab material and inspect the state of the back surface. As a conventional example of such a slab reversing device for reversing a slab material being conveyed on a roller table and conveyed to a rolling facility, Japanese Utility Model Publication No. Hei 7-13843 "Roller table traveling type slab reversing machine" has been proposed.

A conventional slab reversing device will be schematically described with reference to FIGS. 6 and 7 disclosed in the aforementioned “roller table traveling type reversing machine”. As shown in the figure, the conventional slab reversing device includes a circular rotating frame 51 having a slab material passing window 52 in which a roller table 50 is divided and arranged at a plurality of positions, and a reinforcement for connecting the plurality of circular rotating frames 51 to each other. A beam 53 and a support mechanism 54 for rotating the circular rotating frame 51 in the circumferential direction by 180 ° at each division position
And a slab material clamping device 55 mounted on each of the circular rotating frames 51 and a roller table 50 having a length range of the slab material 60 to be reversed. And a drawer 56 that retracts to the outside.

[0004] The drawer 56 is provided with a circular rotating frame 5.
A rail 58 provided on the support mechanism 54 and the side floor, the rail 58 being arranged to be connected to the rail 57 on one of the reinforcing beams 53;
And a draw-out driving means 59. In these drawings, reference numeral 60 denotes a slab material which is turned over while being conveyed on the roller table 50.

[0005] The reversal of the slab material 60 is performed by the roller table 5.
The slab material 60 being conveyed on the rotary table 50 is stopped when it reaches the center position of the above-described reversing device, and the slab material clamps disposed between the traveling directions of the roller tables 50 in the respective circular rotating frames 51. After the device 55 supports the slab material 60 sandwiching the upper and lower surfaces of the slab material 60 and pulls out the roller table 50 in the length range of the slab material 60 to the side of the line by the drawer 56, the circular rotating frame 51 is illustrated. 6
The slab material 60 is rotated 180 ° as shown in FIG.
After the roller table 50 is returned to the original line position, which has been retracted to the withdrawal evacuation position by the withdrawing device 56, the slab material 6 by the slab material clamping device 55
This is done by releasing the pinching of 0.

However, in the conventional slab reversing device having the above-described configuration, when processing a large slab material 60, for example, a large slab material 60 having a weight of 45 tons is used.
Can be processed by being sandwiched between a plurality of large slab material clamping devices 55, but the slab material clamping device 55 and the circular rotating frame 51 incorporating the slab material clamping device 55 have a very large structure. There is a problem.

Similarly, a large slab material clamping device 55
Therefore, an excessive force is applied to the surface of the slab material 60 at the time of the reversing operation, and a clamp flaw may be generated on the surface of the slab material 60 by the slab material clamping device 55. Further, since the displacement of the slab material 60 at the time of reversal is supported only by the frictional force at the time of clamping the slab material clamp device 55, the support of the slab material 60 becomes unstable during rotation around 90 ° during the reversal. There is a risk of falling.

In the case of reversing the high-temperature slab material 60, the slab material clamping device 5 for reversing the slab material 60 is used.
5 and the driving mechanism thereof are provided at positions near the roller table 50 line and exposed to the heat of the high-temperature slab material 60, so that maintenance of these facilities is poor and maintenance is insufficient. Therefore, there is a problem that the device has a short life. Furthermore, a circular rotating frame 5 that rotates 180 °
Since the clamp mechanism is provided in the apparatus 1, there is also a problem that it is difficult to supply power including utility to the drive units of the clamp mechanisms including the slab material clamping device 55.

[0009]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned disadvantages of the conventional slab reversing device, and requires a slab clamping device which needs to be increased in size due to an excessive clamping force generated at the time of reversing the slab material. In order to avoid the increase in the size of the circular rotating frame, and to adjust the thickness of the slab material, adjust the gap between the arms for holding and rotating the slab material, fix the slab material and turn the slab The impact force generated on the surface of the slab can be suppressed to prevent the occurrence of clamp flaws that may occur on the slab material, and furthermore, it is possible to avoid instability at the time of slab material reversal, which is the most important in high-temperature slab material processing. At the same time, the drive mechanism can be arranged far away from the position exposed to the high temperature, so that the drive mechanism is less exposed to the high temperature. Supply of power is facilitated, which contains utilities to 構等 rich in reliability, reversing operation is reliably, yet it is an object to provide a slab inverting device that can be performed in a short period of time.

[0010]

For this reason, the first slab reversing device of the present invention is as follows.

(1) In order to reverse the slab material being conveyed on the roller table, the slab material being conveyed is stopped at a predetermined position on the roller table line and lifted from below.
Or, it is possible to move up and down to land on the stopped position, and when reversing the lifted slab material, move it to a retracted position that does not hinder the reversing operation, or place the reversed slab material on a stopped roller table. , A plurality of C frames, which were laterally moved to the landing position and were placed, were arranged at intervals in the line direction.

(2) The slab material, which is arranged in the line direction of the C frame arranged at intervals in the line direction and receives the slab material lifted by the C frame, rotates around the support shaft provided at the base end. Then, a reversing rotating arm for reversing the slab material was provided. In addition, the reversing rotary arm is arranged to face the slab material raised by the C frame from above and below so that the reversing operation can be performed. It is preferable to form a pair that can be rotated.

(A) According to the slab reversing device of the present invention, the slab material is inverted by the pair of reversing rotating arms by the above-mentioned means (1) and (2). The slab reversing device can be downsized even when it becomes large, and the occurrence of clamp flaws and the like that may occur on the surface of the slab material can be reduced because the reversing operation is performed stably. In addition, in the reversing operation, the slab material is sandwiched by a pair of reversing rotating arms arranged opposite to each other, so that the slab material is in an unstable state in any rotational posture during the reversing operation. Can be avoided, and an accident due to a fall can be avoided.

Further, the driving device for driving the reversing rotary arm for performing the reversing operation of the slab material can be arranged, for example, at a side position of the conveying line away from the conveying line of the slab material. Because there is no rotating frame,
The supply of power including utilities is facilitated, and exposure to high temperatures is reduced, so that the maintainability of these components is improved and a long life can be achieved.

The second slab reversing device according to the present invention employs the following means in addition to the above means (1) and (2).

(3) A base end of the reversing rotary arm is fixed to a support shaft extending between traveling directions of a C frame disposed in a line direction of the roller table, and the rotation arm rotates around the axis of the support shaft. An A-arm, which rotates with the movement and picks up the slab material lifted by the raising and lowering of the C-frame, receives the slab material from below, and sandwiches the slab material with a B-arm provided opposite to perform an inversion operation.

(4) The base end portion is pivotally supported by a movable support shaft having a fixed base end portion of the A-arm and an adjustable distance from a support shaft for rotating the A-arm, and driven by a composite cylinder or the like. By moving the movable support shaft, the movable support shaft is brought closer to the support shaft of the A arm until the thickness of the slab material being conveyed to be reversed is reached, and the slab material received by the A arm from the C frame together with the A arm. The slab material is transferred from the A-arm during the rotation while being pinched and turned, and the slab material being conveyed is turned upside down by turning around the movable support shaft fixed to the base end. And a B-arm for laterally moving the slab material rotated 180 ° and inverted to the landing position on the stopped roller table was provided.

Both the A arm and the B arm are provided with a slab material lower surface support portion on the upper surface and a slab material side surface support portion on the side portions so as to receive the slab material or to hold the slab material stably when the arm is inverted. In addition, it is preferable that the slab material is bonded to these support portions during handling and is stable, so that an impact is not generated due to the movement of the slab material during rotation or the like.

(B) In the slab reversing device of the present invention, the rotating arm for reversing comprises the A arm and the B arm by means of (3) and (4) in addition to the above (a). It is possible to make the entire slab reversing device compact and to arrange the slab reversing device more compactly, and furthermore, to minimize the moving distance of the C frame for receiving or landing the slab material from the roller table. it can. Also,
Since the distance between the A-arm and the B-arm is variable and the slab material can be held and rotated, it is possible to immediately respond to a change in the thickness of the slab material, and the reversing operation time is reduced. It is possible to shorten the stop time for reversing the line and improve the operation rate.

Further, if the slab material lower surface support portion and the slab material side surface support portion are provided on each of the A arm and the B arm, the slab material can be stably inverted by these support portions at the time of inversion. Along with
In particular, by providing the slab material side support portion, even if the width of the slab material changes, the impact force generated at the width end of the slab material at the slab material side support portion can be reduced. In addition, it is possible to more reliably prevent the occurrence of flaws occurring in the slab material.

Further, the third slab reversing device of the present invention employs the following means in addition to the means (3) and (4) described above.

(5) The movable support shaft provided at the base end of the B arm rotates around the fixed support shaft and forms a link mechanism.
This link mechanism is made to be a movable type supported by the upper end of the arm, and this link mechanism adjusts the distance between the support shaft at the base end of the A arm and the movable support shaft at the time of transfer of the slab material to the thickness of the slab material. To adjust the gap between the short cylinder for gap adjustment to adjust the gap and the movable support shaft to the support shaft of the A arm corresponding to the thickness of the slab material received from the A arm,
The rotary cylinder can be rotated by a composite cylinder that is connected to a stroke cylinder that moves the movable support shaft.

(C) Accordingly, the slab reversing device of the present invention can provide the A-arm with respect to the plate thickness of the slab material to be reversed or a change in the plate thickness by means of (5) in addition to the above (b). The distance between the support shaft at the base end and the movable support shaft can be set more accurately, and a simple configuration can immediately respond to changes in the plate thickness of the slab material. It is possible to further shorten the time and improve the operation of the line.

The fourth slab reversing device of the present invention employs the following means in addition to the above-mentioned means (1) and (2).

(6) The base of the reversing rotary arm is pivotally supported to receive the slab material for reversing, and for the reversing operation,
The support shaft for rotating the reversing rotation arm is fixedly installed between C frames arranged at predetermined intervals in the line direction. In addition, on the upper surface of the reversing rotating arm, a saddle having a thickness corresponding to the thickness variation of the slab material to be inverted can be detachably attached with a pin so that it can cope with a variation in the thickness of the slab material. It is preferable to do so.

(D) Accordingly, the slab reversing device of the present invention can be moved by the means of (6) in addition to the above (a) to make the slab material have a thickness corresponding to the thickness variation of the slab material. This eliminates the need for a movable support shaft and a composite cylinder that moves the movable support shaft in accordance with the thickness of the slab material. This makes it possible to simplify the configuration of the slab reversing device and make it compact. The installation area of the slab reversing device can be increased, and the equipment itself can be made large.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a slab reversing device according to the present invention will be described below with reference to the drawings. In the drawings, members that are the same as or similar to those shown in FIGS. 6 and 7 are given the same reference numerals, and descriptions thereof are omitted as much as possible. FIG. 1 is a front view showing a first embodiment of a slab reversing device of the present invention,
FIG. 2 is an overall plan view of the slab reversing device shown in FIG.
FIG. 4 is an explanatory view showing an operation at the time of slab material inversion by the slab inversion device shown in FIG.

As shown in FIGS. 1 and 2, the slab reversing device according to the present embodiment comprises a plurality of rows of slab members provided on a vertically movable rail 1 so as to be able to move laterally toward a roller table 50. A C-frame-type movable trolley 2 (hereinafter simply referred to as a C-frame) for lateral conveyance, and a slab rotating around a support shaft 3 fixedly arranged in parallel with a roller table 50 line on a foundation between rows of the C-frame 2 An A arm 4 arranged on a plurality of rows of roller tables 50 for picking up material;
C that constitutes a plurality of rows of position adjustment link mechanisms that rotate around the support shaft 5 that is fixed and arranged at a low position outside the support shaft 3
The arm 6 includes a reversing-side B arm 8 that rotates around a movable support shaft 7 supported on the upper end of the C arm 6 in parallel with the support shaft 5 for the C arm 6.

The position adjusting mechanism of the movable support shaft 7 is, in addition to the above-mentioned arm type which is supported by the end of the C-arm 6 which rotates around the movable support shaft 7, slides on a table to move the movable support shaft 7 Can be replaced by an appropriate method such as making it possible to shift the width in the support shaft 3 direction.

The elevating rail 1 mounted on the C frame 2 rotates in the same direction around a fixed support shaft 9 fixed and arranged in series in a direction perpendicular to the roller table 50. Part is provided on a spar 13 which is raised and lowered by a driving cylinder 12 which is pivotally supported,
It is of the type that can prevent skidding, like a rail with a mountain-shaped cross section. Furthermore, the lifting mechanism of the girder 13 that is raised and lowered by the drive cylinder 12 is:
Any device may be used instead of the drive cylinder 12.

The C frame 2 is formed into a C shape so as to rise vertically to the center axis position of the spar 13, rides on the rail 1, and rises from both sides of the spar 13.
The horizontal lower side member of the C frame 2 is restrained so as to be pressed from above by a pressing roller 16 straddling the C frame 2, and is moved laterally while maintaining the vertical posture.

On the lower surface of the C frame 2, there is integrally provided a downwardly leveled rack gear 17, which is rotated by a motor 19 and a transmission shaft 20 arranged on a table 18 shown in FIG. By driving the drive pinion 21 built in the spar 13 to be engaged, the C frame 2 travels on the lift rail 1 by the wheels 14,
The C frame 2 is configured to move up and down between the 2a position and the 2b position by moving from the solid line position to the position indicated by the chain line 2a and further raising the beam 13 by the drive cylinder 12. Reference numeral 22 denotes a C-frame tuning drive mechanism for driving the C-frames 2 provided in a plurality of rows for slab material lateral conveyance in synchronization.

As shown in FIG. 2, in the slab reversing device of the present embodiment, the beam 13 and the C frame 2 are arranged in a plurality of rows parallel to the line direction in which the rollers 61 are arranged. Are provided in such a manner that the shafts 9 (right ends) are provided so as to be connected to each other. As shown in FIG. 1, the A-arm 4 has a long upward slab material lower surface support portion 4a that supports the lower surface of the slab material 60 on the roller table 50, and a right-angled step-shaped lateral support that supports the side surface of the slab material 60. A slab material side support portion 4b is provided, and as shown in FIG.
Are provided so as to rotate integrally with the support shaft 3 (in FIG. 2, four are provided) at intervals between the rollers 61 of the roller table 50 along the axis, and are provided integrally with the support shaft 3 in the opposite direction. The end of the L-arm 23 is connected to the drive end of a drive cylinder 25 that is supported on the base 24 by a shaft, and is configured to rise and fall from the solid line position 4 to a position beyond the chain line 4 ′ by the expansion and contraction stroke of the drive cylinder 25. .

The B arm 8 is, as shown in FIG.
A long slab material lower surface support portion 8a and a slab material 6 which are symmetrically disposed with the A-arm 4 and are in contact with the upper surface of the slab material 60.
And a right-angled step-shaped lateral slab material side support portion 8b for supporting the side surface of the B-arm 8. The middle portion of the back surface of the B-arm 8 is connected to the drive end of a drive cylinder 27 pivotally supported by a base 26. 1 can be raised and lowered from the solid line position 8 to the position beyond the chain line position 8 'in FIG.

The support shaft 3 for the A-arm 4 and the support shaft 7 for the B-arm 8 are provided inside the pocket of the C frame 2 so as not to interfere with the movement of the C frame 2. The C-arm 6 is provided so as to rotate around a support shaft 5 on a table whose base end is not continuous on the same axis, and a movable support shaft 7 of the B-arm 8 is provided between the side surface of the C-arm 6 and the table 28. 1 and the gap between the upper surface of the A arm 4 and the upper surface of the B arm 8 when the stroke cylinder 29 moves from the solid line position 7 to the chain line position 7 ', that is, the gap shown by the arrow G in FIG. And a gap adjusting short cylinder 30 that adjusts the gap in accordance with the length of the cylinder is connected by a composite cylinder 31 integrated on a common axis.

The slab reversing device of the present embodiment is configured as described above, and reverses the slab material 60 being conveyed on the roller table 50 as follows. First, as a preparatory operation, the gap at the time of opposition between the A arm 4 and the B arm 8 is supplied from above the roller table 50 by a short stroke operation of the gap adjusting short cylinder 30 in advance.
The positions of the support shaft 3 and the movable support shaft 7 of the A arm 4 are adjusted to the position corresponding to the thickness by rotating the C arm 6 around the fixed support shaft 5, and in this state, the gap adjusting short cylinder 30 is moved. Keep locked. In FIG. 1, the position of the C-arm 6 indicated by a solid line indicates the locked position adjusted by the adjusting short cylinder 30.

The A-arm 4 is set at a position lower than the upper surface of the roller 61 as shown by the solid line in FIG. 3A, and is held on the roller table 50 at a standby position where the slab material 60 can be transported. The arm 6 is rotated, and the movable support shaft 7 at the upper end is held at a position closer to the A arm 4 side.
Similarly, the upper surface of the B-arm 8 whose base end is held at a position corresponding to the thickness of the slab material 60 whose opposing time interval is reversed is also held horizontally. In addition, the C frame 2 is moved downward to the lower side of the roller table 50 in this state.
The upper beam of the frame 2 is kept lower than the upper surface of the table roller 61.

FIG. 3A shows a state in which preparation for the reversing operation of the slab material 60 during the transportation is completed. Under this state, the slab reversing operation is performed as follows.

(1) Conveyed over the roller table 50,
The slab material 60 for performing the reversing operation is stopped at the center position of the slab reversing device shown in FIG.

(2) The C frame 2 is raised at the same time as the A arm 4 by extending the drive cylinder 12,
The slab material 60 is lifted by the frame 2, and the C frame 2 is moved by the drive pinion 21 to a position where the side surface of the slab material 60 contacts the side support 4 b of the A arm 4. A short arrow 32 shown in FIG. 3A illustrates the width shifting operation by the C frame 2.

The C frame 2 is raised and stopped to a height required to separate it from the table roller 61 on which the slab material 60 is placed, and only the A arm 4 extends the drive cylinder 25, and the support shaft 3 The slab material 60 on the C frame 2 is turned around and turned upward, and the slab material lower surface support 4a and the slab material side support 4
The slab material 60 lifted in the state of contacting with the b and separated from the table roller 61 by the C frame 2 is transferred from the C frame 2 to the A frame 4. After transferring the slab material 60 to the A arm 4, the C frame 2 starts descending and retreating,
It is moved to the position indicated by the chain line 2a in FIG.

The A-arm 4 is temporarily stopped from rising at the delivery work start point shown in FIG. In addition, after the C frame 2 starts retreating, the base end around the movable support shaft 7 provided at the upper end of the C arm 6 starts rotating and the ascending B arm 8 starts rising after the C frame 2 starts retreating. . The B-arm 8 that has started to ascend temporarily stops at the delivery work start point shown in FIG. 3B and waits until the A-arm 4 that rises due to the extension of the drive cylinder 25 arrives. FIG.
(B) shows a state in which the B arm 8 and the A arm 4 rotate around the support shaft 3 and the movable support shaft 7, move up together, reach the delivery work start point, and stop.

(3) When the A-arm 4 and the B-arm 8 on both sides are aligned, the delivery operation of the slab material 60 is started.
In the delivery operation, both the A arm 4 and the B arm 8 are simultaneously rotated around the support shaft 3 and the movable support shaft 7, and
This is performed by rotating to the delivery work completion point shown in (c). At this time, in the slab material 60, both the arms 4 and the B arms 8 are in the A arm 4 'position and the B arm B 8' shown in FIG.
At the time of passing through the vertical position depending on the position, the position of the center of gravity of the slab material 60 moves from the A arm 4 to the B arm 8 and is transferred from the A arm 4 to the B arm 8, and the transfer work completion point shown in FIG. To reach.

(4) After passing the delivery work completion point shown in FIG. 3 (c), the B-arm 8 on the reverse side continues to descend, and
It temporarily stops at the standby position shown in (d). Further, after the B arm 8 reaches the delivery work completion point, the A arm 4 reverses, returns to the initial standby position (downward limit), and stops, as shown in FIG. 4D.

(5) In the standby state of the B arm 8 in FIG. 4D, the C arm 6 is rotated forward by moving the movable support shaft 7 at the upper end by extending the composite cylinder 31 so that the slab material 6 is rotated.
The position of “0” is moved toward the roller table 50. After confirming that the C-arm 6 is at the forward limit, the drive cylinder 27
And the B arm 8 on the reverse side is moved to the horizontal position (downward limit) shown in FIG.

(6) In the state of FIG.
Is raised again, and the inverted slab material 6 on the B-arm 8 is
After the C frame 2 is lifted, the C frame 2 is moved toward the roller table 50 by the drive pinion 21 and the rack 17.

(7) The C frame 2 moved to the roller table 50 side receives the slab material 6 on the inverted B arm 8.
After the center of 0 is moved to a position where it coincides with the center of the roller table 50, it is lowered.

The reversal of the slab material 60 is completed by such a work procedure, and the reversed slab material 60 can be transported by the roller table 50 provided on a line subsequent to the roller table 50 on which the reversal work has been performed. Then, the slab reversing device is again in a standby state for reversing the next slab material.

As is apparent from the above description, according to the slab reversing device of the present embodiment, unlike the conventional slab reversing device, the circular rotating frame 51 incorporating the slab material clamping device 55 for supporting the slab material 60 is provided. Using a vertically movable C-frame (type moving trolley) 2 and two sets of reversing arms A-arm 4 and B-arm 8, and installing a C-arm 6 operated by a stroke cylinder 29. Accordingly, the support shaft 3 and the movable support shaft 7, which are the main shafts for rotation of the two sets of the A arm 4 and the B arm 8, can be used close to each other, and the entire slab reversing device can be configured and arranged compactly.

For this reason, the C frame 2 is made of the slab material 60.
2 times the lateral width of the slab material 60 to be reversed, as compared with the amount of movement of the roller table 50 which does not hinder the reversal by the circular rotating frame 51 every time the roller table 50 needs to be laterally moved to the retreat position on the side of the line. With only a small amount of lateral movement, the moving distance can be minimized, and the movable support shaft 7 of the B arm 8 to be reversed can be changed by the C arm 6 and the composite cylinder 31 composed of the stroke cylinder 29 and the gap adjusting cylinder 30. , The gap between the two sets of the reversing A-arm 4 and the B-arm 8 can be arbitrarily set according to the change in the thickness of the slab material 60.

Further, a driving unit for rotating each of the A-arm 4, the C-arm 6, and the B-arm 8, and a driving unit for moving the C-frame 2,
The slab material 60 is horizontally separated from the roller table 50 line where the high-temperature slab material 60 is conveyed.
Can be located below the reversing path line, which facilitates the supply of power including utilities, and reduces the thermal effect on these drives even when processing high-temperature slab materials, significantly increasing the reliability of equipment. be able to.

Further, in the width shifting operation of the slab material 60 by the C frame (type moving carriage) 2, the slab material 60 can be supported by the A arm 4 and the B arm 8 on both the lower surface and the side surface. Even when 60 width fluctuates,
On the side support portions 4b, 8b of the A arm and the B arm 8,
The impact force applied to each can be reduced, and effects such as helping to prevent flaws in the slab material 60 that may occur due to the impact force can be obtained.

Next, FIG. 5 is a front view showing a slab reversing device according to a second embodiment of the present invention.

In the slab reversing device of this embodiment, the support shafts 3 and 7 of the A arm 4 and the B arm 8 in the first embodiment are adjusted to a slab material having a constant thickness such as a maximum thickness. Elevated C frame 2 with fixed shaft spacing
This is a combination of the above.

As shown in the drawing, in the present embodiment, B is set according to the thickness of the slab material 60 in the first embodiment.
The C arm 6 serving as a link mechanism, which is provided to move the movable support shaft 7 of the arm 8 relatively to the support shaft 3 of the A arm 4, is omitted. In the figure,
36 denotes a support shaft 3 of the A arm 4 in the first embodiment.
The support table 37 is provided at the same height as the table provided to support the B. The reference numeral 37 denotes a fixed support shaft on the support table 36, that is, a fixedly arranged B arm 8.

The fixed support shaft 37 on the side of the B arm 8 is inserted into the pocket, and the slab material 60 on the C frame 2 is transferred to the roller table 50.
In order to move to the center position, the length of the C frame 2 is longer than that of the C frame 2 of the first embodiment.
The length of the girder 13 that allows the frame 2 to move above is also increased. Further, in the slab reversing device of the present embodiment, in order to be able to reverse the slab materials 60 having different thicknesses, the upper surface of the B arm 8 has a thickness corresponding to the thickness variation of the slab material 60. The saddle 38 is attached and detached with a pin 39 so that the slab material 60 can be inverted.

In the slab reversing device of the present embodiment, the thickness of the slab material 60 and the C-arms 6 for position adjustment provided in the first embodiment and the support shaft 5 for pivotally supporting the C-arms 6 are provided. Since the driving system for moving the support shaft 5 is omitted according to the above, the configuration of the slab reversing device itself is simplified, but the length of the C frame 2 and the spar 1 for moving the C frame 2
3 The longer the length, the larger the installation area of the slab reversing device and the larger the equipment itself.

The other functions and effects are the same as those of the first embodiment.

[0059]

As described above, in the slab reversing device of the present invention, the slab material being conveyed on the roller table is stopped at a predetermined position, lifted from below, or landed on the stopped position. In order to move up and down, and also to move the lifted slab material and the reversing operation to a position that does not hinder the reversing operation, or to allow the reversed slab material to move laterally to the landing position of the roller table, providing an interval in the line direction A reversing rotating arm is provided between the plurality of C frames and the C frames provided in the line direction for receiving a slab material lifted by the C frame and performing a reversing operation.

As a result, the slab material being inverted can be inverted by the pair of rotating arms for inversion, so that the slab inversion device can be downsized even when the weight of the slab material is large, and the clamp flaw generated on the slab material surface during the inversion operation. Etc. can be reduced. In addition, since the reversing operation is performed by sandwiching the slab material between the pair of reversing rotating arms arranged opposite to each other, an unstable state of the slab material at the time of the reversing operation can be avoided, and a fall accident or the like can be avoided. In addition, the drive device that drives the reversing rotating arm that performs the reversing operation can be arranged at a position away from the transport line, which facilitates the supply of power including utilities, is not exposed to high temperatures, and is easy to maintain. And a longer life can be achieved.

Further, in the slab reversing device of the present invention, the rotating arm for reversing has a base end fixed to a support shaft provided between C frames and disposed in the direction of the roller table line. The slab material that rotates with the movement and receives the slab material lifted by the lifting and lowering of the C frame is held between the B arm and the inversion operation, and the distance between the A arm and the support shaft of the A arm fixed to the base end is adjusted. The lower end is pivotally supported by the enabled movable support shaft, and the movable support shaft is moved closer to the A-arm support shaft until the thickness of the slab material which is inverted by the movement of the movable support shaft.
The slab material received from the frame is transferred from the A-arm while being clamped together with the A-arm, and the slab material being conveyed is turned upside down by rotating the support shaft fixed to the base end. And a B-arm for laterally moving the inverted slab material to the landing position on the roller table.

As a result, the rotating arm for reversing is composed of the A-arm and the B-arm, which can be miniaturized, the whole slab reversing device can be made compact, and the moving distance of the C-frame can be minimized. In addition, since the distance between the A arm and the B arm is variable, and the slab material can be sandwiched and inverted,
It can respond immediately to changes in the thickness of the slab material, shorten the reversal operation time, and improve the operation of the line.

Further, by providing a slab material lower surface support portion and a slab material side surface support portion on the A arm and the B arm,
Highly stable slab reversal is possible.Especially, by installing the slab material side support, even when the slab material width changes, the impact force generated at the slab material width end by the slab material side support can be reduced. In addition, the generation of flaws in the slab material can be prevented.

In the slab reversing device of the present invention, the movable support shaft at the base end of the B-arm rotates around the fixed support shaft and is supported by the upper end of the C-arm constituting the link mechanism. This link mechanism is used for A
A gap adjusting short cylinder for arbitrarily setting the interval between the support shaft at the base end of the arm and the movable support shaft, and moving the movable support shaft to adjust the distance between the A-arm support shaft and the movable support shaft to a slab material plate. It is composed of a composite cylinder in which a stroke cylinder having an interval corresponding to the thickness is connected.

As a result, the slab reversing device of the present invention
The distance between the support shaft of the A-arm and the movable support shaft can be accurately set with respect to the plate thickness or the change of the slab material to be reversed, and the simple structure can immediately respond to the change in the plate thickness with the simple structure.
The interval between the arm's support shaft and the movable support shaft can be set, the reversing operation time can be shortened at low cost, and the operability can be improved.

Further, in the slab reversing device of the present invention, the support shaft for pivotally supporting the base end of the reversing rotating arm, receiving the slab material to be reversed, and rotating the reversing rotating arm for performing the reversing operation, has a predetermined shaft. It was fixedly installed between C frames arranged at intervals in the line direction.

As a result, it is not necessary to install a movable support shaft having a thickness corresponding to the variation of the slab material thickness, a composite cylinder for moving the movable support shaft to the thickness, and the like. The size of the equipment itself can be increased by increasing the installation area of the slab reversing device.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a slab reversing device of the present invention,

2 is an overall plan view of the slab reversing device shown in FIG. 1,

3A and 3B are process diagrams showing a first half of a working process at the time of slab reversal by the slab reversing device shown in FIG. 1, wherein FIG. 3A shows a state in which preparation for reversing work is completed, and FIG. FIG. 3C is a diagram showing a state in which the delivery of the slab material has been started, and FIG.

FIG. 4D is a view showing the latter half of the work process at the time of slab reversal shown in FIG. 3; FIG. 4D is a view showing a B arm standby state;
FIG. 4E is a diagram showing a state in which the B arm is moved to a horizontal position, FIG. 4F is a diagram showing a state in which the inverted slab material is moved to a roller table position,

FIG. 5 is a front view showing a second embodiment of the slab reversing device of the present invention,

FIG. 6 is a front view showing a conventional slab reversing device;

FIG. 7 is a view showing a state in which the slab material is inverted by the slab inversion device shown in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Elevating rail 2 C frame (mold moving trolley) 3 Support shaft 4 A arm 4 a Slab material lower surface support part 4 b Slab material side support part 5 Fixed support shaft 6 C arm (link mechanism) 7 Movable support shaft 8 B arm 8 a Slab Lower surface support portion 8b Slab material side support portion 9 Fixed support shaft 10 Link 11 Connecting shaft 12 Drive cylinder 13 Digit 14 Wheel 15 Bracket 16 Holding roller 17 Rack gear 18 Stand 19 Motor 20 Transmission shaft 21 Drive pinion 22 C frame synchronization drive mechanism 23 L Arm 24 Units 25 Drive Cylinders 26 Units 27 Drive Cylinders 28 Units 29 Stroke Cylinders 30 Short Cylinder for Gap Adjustment 31 Composite Cylinder 32 C Frame Width Movement 36 Support Stand 37 Fixed Support Shaft 38 Saddle 39 Pin 50 Roller Table 51 Circular Rotation Frame 52 Slab material passage window 53 Reinforcement beam 54 Support mechanism 55 Slab material clamping device 56 Pull-out device 57 Rail 58 Rail 59 Pull-out drive means 60 Slab material 61 Roller

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yoshinori Mito 6-31 Minamikannon, Nishi-ku, Hiroshima-shi, Hiroshima F-term in Ryosen Engineers Co., Ltd. (reference) 3F081 AA10 BE02 BE09 CA17 CC12

Claims (4)

[Claims] In a slab reversing device for reversing a slab material conveyed on a roller table, the slab material being conveyed is stopped at a predetermined position on a line of the roller table, and lifted or stopped from below. It is possible to move up and down for landing at the position where the slab material is lifted, and retracted to a position that does not hinder the inversion operation of the lifted slab material, or the inverted slab material is allowed to move laterally to the landing position, A plurality of C-frames arranged in the line direction of the roller table, and a reversing rotary arm disposed between the C-frames for receiving the slab material lifted by the C-frame and performing a reversing operation; A slab reversing device characterized by the above-mentioned. 2. A base end of the reversing rotary arm is fixed to a support shaft provided between the C frames disposed in a line direction of the roller table, and the rotation arm around the axis of the support shaft is provided. An A-arm, which rotates together with the rotation, receives the slab material lifted by the C-frame, and pinches and inverts the slab material; Is pivoted, the movable support shaft is moved to approach the A-arm to the thickness of the slab material, and the slab material received by the A-arm is inverted in cooperation with the A-arm, and the inverted 2. The slab reversing device according to claim 1, further comprising a B-arm for laterally moving the slab material to a landing position on the roller table. 3. The movement of the movable support shaft is performed by a link mechanism provided with an end that rotates around a horizontal fixed axis, and the link mechanism moves between the support shaft of the A-arm and the movable support shaft. Move the movable support shaft and the gap adjusting short cylinder that adjusts the gap according to the thickness of the slab material and adjust the gap between the support shaft of the A-arm and the movable support shaft to the thickness of the slab material. 3. A slab reversing device according to claim 2, wherein said slab reversing device is constituted by a composite cylinder comprising a stroke cylinder having a predetermined interval. 4. A support shaft provided at a base end of the reversing rotary arm and supporting the base end for receiving the slab material and rotating the reversing rotary arm for a reversing operation is provided. The slab reversing device according to claim 1, wherein the slab reversing device is fixedly installed above the space between the C frames at intervals.