JP2799781B2 - Method and apparatus for cutting sliver in spinning machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a spinning machine for spinning a sliver, wherein the delivery sliver is filled with the spun sliver and the full can and the empty can are exchanged.
The present invention relates to a method of cutting a sliver in a spinning machine for automatically cutting a sliver connected between a full can and a lower surface of a coiler wheel by a device separately driven from the spinning machine, and an apparatus therefor. .

[0002]

2. Description of the Related Art In a spinning machine such as a drawing machine, an empty can is arranged at a coiling position below a coiler wheel, and when a spun sliver is housed in the empty can, it becomes full. Is designed to automatically exchange the full can and the subsequent empty can to store the sliver in the empty can. In such a spinning machine, it is necessary to automatically cut the sliver connected between the full can and the sliver discharge hole of the coiler wheel when the can is automatically replaced.

A conventional sliver cutting device used at the time of automatic replacement of cans is disclosed in Japanese Patent Publication No. 1-4584.
JP-A-63-92
An apparatus described in Japanese Patent No. 737 is known. In the former cutting device, one arm interlocking with a can moving device is disposed immediately below a coiler wheel, and a pressing piece attached to an upper surface of the arm is attached to a lower surface of the coiler wheel. The sliver is sandwiched between the pressing piece and the lower surface of the coiler wheel, and is linked with the automatic can changing device to connect between the full can and the coiler wheel. This is a configuration for cutting the sliver that is in use. In the latter cutting device, the full can is moved from directly below the coiler wheel, and the sliver of the full can and the coiler wheel is moved.
A pair of first grippers disposed at predetermined intervals along the direction of can movement above the sliver connected to the discharge hole, and folded substantially vertically below the sliver; And a comb-shaped member disposed between the pair of first gripping tools, and the pair of first gripping tools are lowered, and The pair of second gripping tools are raised horizontally, the sliver is gripped at two places by the first and second gripping tools, and the sliver located between the gripping portions is held by the comb-like member. It is a configuration for cutting.

The former cutting device has the advantage that the sliver can be cut simultaneously with the automatic replacement of the can by interlocking the can changing device and the sliver cutting tool without stopping the full can at a predetermined position. I have. However, at the time of cutting, the cutting tension is applied to the sliver positioned between the calender roller arranged on the upstream side of the coiler wheel and the pressing piece constituting the sliver cutting tool. Therefore, there is no guarantee that the sliver at the portion located between the sliver discharge hole of the coiler wheel and the pressing piece will be cut, and the sliver discharge hole and the calendar roller will not be cut off. The sliver of the located portion may be cut off, and in such a case, the sliver may be clogged in the coiler wheel at the time of re-spinning. Further, the sliver is cut by hooking the sliver at the corner of the sliver discharge hole of the coiler wheel and pressing the pressing piece attached to the arm against the lower surface of the coiler wheel. By rotating the arm, the fibers constituting the sliver are torn. Here, sliver
Since the cutting tool is interlocked with the can exchange device, the turning speed of the arm constituting the sliver cutting tool is constant. Depending on the count of the sliver, it is necessary to reduce the turning speed of the arm to suppress the generation of fly waste.
2. Description of the Related Art Frequent changes in the turning speed of an arm under a variety of small-lot production currently performed in a spinning factory place a great burden on workers and also cause a decrease in production efficiency. . Further, in order to make it possible to cut the sliver even from any part of the full can, the length of the pressing piece attached to the arm must be larger than the diameter of the can. Therefore, there is a disadvantage that the cutting device itself becomes large.

In the latter cutting device, the full can and the empty can can be exchanged immediately, and the full can and the coiler can be exchanged.
Since the sliver connected to the wheel is gripped and cut at two fixed positions of the spinning machine, there is an advantage that the cutting position of the sliver is fixed. However, since the full can at the coiling position is carried out of the spinning machine and the sliver connected between the full can and the coiler wheel is gripped and cut, the cut sliver is larger than the full can. There is a possibility that the sliver will be damaged when the full can is transported. Further, for the same reason as described above, the length of each gripping tool needs to be larger than the diameter of the can, and the device becomes large. Furthermore, while a pair of 1st holding tools arrange | positioned up and down move,
The structure of the cutting device is configured such that a pair of grips disposed below perform a pivoting movement, and in addition, a comb-shaped member is disposed between the pair of first grips and vertically moved. Is complicated and causes a failure, and the first gripping tool causes an obstacle when performing cleaning work and maintenance work on the upper part of the coiler wheel.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned problems of the conventional sliver cutting device, and has two working tools pressed against the lower surface of the coiler wheel during replacement of the can. Moving one of them
An object of the present invention is to make it possible to cut the sliver reliably on the lower surface of the coiler wheel and to make the cutting position almost constant.

[0007]

A sliver cutting device according to the present invention for solving this problem is driven by a drive device different from the can exchange device to perform reciprocating linear movement in the can moving direction. A first moving body to be connected, a second moving body connected to the first moving body to perform a reciprocating linear movement in the same direction, and mounted on the first and second moving bodies, respectively. A first and a second working tool which rotate integrally with each other in a vertical plane perpendicular to the moving direction and are pressed against the lower surface of the coiler wheel in a horizontally raised state; In the vicinity of the moving ends of the first and second working tools mounted on the moving body and performing reciprocating linear movement, the working tools are integrally rotated alternately between a horizontal position and a substantially vertical position. Tool alternate rotation device for connecting The first and second moving bodies are separated from each other during the forward movement, and the first moving body and the stopped second moving body are connected during the backward movement of the first moving body. And a moving body separating and connecting device for retreating the two together.

[0008]

The driving device is activated to advance the first and second moving bodies located at the retreat ends in the connected state,
On the way, the first and second working tools, which are folded substantially vertically by the working tool alternate rotation device, are caused to rise horizontally in a unitary manner and pressed against the lower surface of the coiler wheel. The sliver is sandwiched between the lower surface of the tool and each working tool. Thereafter, when the moving bodies in the connected state are separated by the moving body separating / connecting device and only the first moving body is moved as it is, the first and second working tools and the lower surface of the coiler wheel are connected. The sliver sandwiched between them is pulled to release the conjugation of the fibers constituting the sliver, and thereby the sliver is pulled out.
Is disconnected. When the first moving body reaches the forward end, the first and second working tools are folded substantially vertically by the working tool alternating rotation device, and retreat without interfering with the can in the state as it is.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a two-delivery spinning machine as shown in FIGS. 10 and 11, a coiler wheel 2 of each delivery is attached to the lower surface of a coiler device 1, and a sliver cutting device according to the present invention. A is located below the coiler device 1 and between each coiler wheel 2. As shown in FIG. 14, the sliver S which has entered the sliver passage 4 of the coiler wheel 2 through the pair of calender rollers 3 is discharged from the sliver discharge hole 5 and immediately below it. Cans 10 installed at the coiling position of
It is housed while being coiled. In the following description, the symbol "10" is generally used to indicate cans, and the symbols "10a" and "10b" are respectively used when it is necessary to distinguish between full and empty cans. use.

Next, a sliver cutting device A according to the present invention.
Will be described in detail. As shown in FIGS. 1 to 3, the cutting device A includes a first moving body B connected to a chain 6 constituting a driving device and performing a reciprocating linear movement;
A second moving body C that is removably connected to the first moving body B and performs reciprocating linear movement in the same direction;
Are mounted on the moving bodies B and C, respectively, and rotate integrally in a vertical plane perpendicular to the moving direction, and are pressed against the lower surface of the coiler wheel 2 while being raised horizontally. First and second working tools D, E
And an operating tool for integrally rotating the operating tools D and E alternately between a horizontal position and a substantially vertical position in the vicinity of the moving ends of the first and second operating tools D and E. During the forward movement of the alternate rotating device F and the first and second moving bodies B and C in a connected state, the first and second moving bodies B and C are disconnected and separated from each other. And a moving body separating and connecting device G for connecting the one moving body B and the stopped second moving body C to unite and retreat the two. In the present invention, the first
The forward direction of each of the second moving bodies B and C may be the moving direction of the can 10 or the opposite direction, but this embodiment is the former case.

[0011] As shown in FIG.
A pair of roller traveling guides 7 having a U-shaped cross section
Are arranged along the moving direction of the can 10 at predetermined intervals in a direction orthogonal to the moving direction of the can 10. The two sides of each of the first and second moving bodies B and C are respectively 2
Each of the rollers 8 is attached, and each of the rollers 8 is
As a result, the first and second moving bodies B and C reciprocate linearly in the moving direction of the can 10. In FIG. 1, first action tools D are attached to both sides of a first moving body B via pins 9 so as to be rotatable in a vertical plane orthogonal to the moving direction of the can 10. In addition, a second action tool E is attached to the second moving body C via a pin (not shown).
Is attached in the same manner as the working tool D. As shown in FIG. 2, a connecting pipe 12 horizontally fixed to the base end of the substrate 11 of the second working tool E is slidable on the base end of the base plate 13 of the first working tool D. , The first and second working tools D and E rotate integrally, and the first working tool D moves while the second working tool E is stopped. It is configured to be able to. As shown in FIGS. 4 and 5, the first and second working tools D and E have substantially the same shape, but only the first working tool D has a pressed piece 14 at its base end. Is protruding. Further, as shown in FIG. 5, each substrate 1 of the first and second action tools D and E
Pressing plates 15 and 16 are attached to 1 and 13, respectively, and the pressing plates 15 and 16 are urged upward by the restoring force of a compression spring 17. Press plate 1 of the present embodiment
5 and 16 are formed of resin, and the upper surfaces thereof are roughened in order to increase the contact resistance with the sliver S and facilitate cutting. In FIGS. 2 and 4,
Reference numeral 18 denotes a support roller attached to the first working tool D to support the connecting pipe 12.

The working tool alternate rotation device F integrates the first and second working tools D and E attached to the first and second moving bodies B and C, respectively, and moves them substantially to the horizontal position. An apparatus for alternately rotating between a vertical position, and FIG.
As shown in FIGS. 6 to 9, a cam rail 19 is fixedly disposed below the first moving body B, and a pressing tool 21 mounted on the first moving body B. You. The cam rail 19 is disposed horizontally along the moving direction of the first and second moving bodies B and C, and the first rail portion 19a and the second rail portion 19b are connected. A step 19c is formed at the connecting portion, and the upper surface of the second rail portion 19b is slightly higher than the upper surface of the first rail portion 19a. This cam rail 19 has a first rail portion 19.
a is arranged on the upstream side along the moving direction of the can 10. The pressing tool 21 includes a cam follower section 21a that runs along the upper surface of the cam rail 19 and a pair of pressing sections 21b for simultaneously pressing the pressed pieces 14 provided on the first working tool D. And the first mobile unit B
Is rotatably mounted via a pin 22. Therefore, the first moving body B moves forward, and the cam follower portion 21a of the pressing tool 21 is moved to the first rail portion 19 of the cam rail 19.
a, the pressing tool 21 rotates counterclockwise about the pin 22 in FIG. 6, and a pair of pressing portions 21 b provided on the pressing tool 21 is a base end of each first working tool D. The first and second working tools D and E, which have become substantially vertical, are pressed almost horizontally by pressing the pressed piece 14 of FIG.
2). When the pressing tool 21 further advances and gets over the step 19c of the cam rail 19, the first and second working tools D and E are further raised and become horizontal, and the pressing plates 15, 16 are coiled. -Press the lower surface of the wheel 2 (see FIG. 13). When the first moving body B reaches the forward end, the cam follower portion 21a of the pressing tool 21 is disengaged from the cam rail 19, and the pressing tool 21 by its own weight pushes the pin 22 so that the pressing section 21b faces upward. The first and second action tools D and E, which have been caused to rotate horizontally around the center (see FIG. 8), are folded substantially vertically by their own weight, and in this state, the first and second action tools D and E are folded. Each of the action tools D and E retreats without interfering with the can 10 (see FIG. 9).

Next, referring to FIG. 3, FIG. 6 and FIG.
A description will be given of a moving body separating and connecting device G for separating and connecting the first moving body B and the second moving body C. A guide plate 23 is connected to the first moving body B via a pin 24, and a fixed shaft 26 enters a long hole 25 provided in the guide plate 23 along the length direction. An engaging step 27 provided at the lower end thereof is engaged with an engaging plate 28 provided on the second moving body C. The fixed shaft 26 is fixed and does not move at all, and the guide plate 23 is supported by a support roller 29 mounted on the fixed shaft 26.
Supported by A step 25a is formed in the middle of the elongated hole 25 provided in the guide plate 23, and the first and second moving bodies B and C are integrally moved forward to form the guide plate 2
The stepped portion 25a of the elongated hole 25 provided in
When the guide plate 23 is reached, the guide plate 23 slightly rotates about the pin 24, and the engaging step 27 provided on the guide plate 23 and the engagement member provided on the second moving body C are provided. The engagement with the plywood 28 is released, and only the first moving body B moves forward as it is. Further, a stopper plate 31 is attached to the second moving body C, and an elongated hole 31 provided in the stopper plate 31 is provided.
The support roller 32 attached to the fixed shaft 26 has entered into a. This support roller 32 is used for the elongated hole 31a.
The second moving body C is stopped at the set position by abutting the formation end of the second moving body C.

The operation of the sliver cutting device A of the above embodiment will be described. First, the sliver S is attached to the can 10 arranged at the coiling position immediately below the coiler wheel 2.
When the sliver is full and the sliver is full, the spinning of the sliver is stopped, and then the coiler wheel 2 rotates to the set position (the position shown in FIG. 10) and stops. Coiler
After the wheel 2 stops at the home position, the can exchange device (not shown) is operated, and the can rows of each delivery are simultaneously moved, and the stop sensor detects that the full can 10a has moved to the predetermined position. When the signal 33 (see FIG. 10) is detected, the can exchange device stops. As a result, 1
The sliver S continues between the sliver discharge hole 5 of the coiler wheel 2 and the sliver S (see FIG. 14). Before the operation of the sliver-cutting device A, as shown in FIGS. 1 and 14, the first and second working tools D and E are substantially vertically folded (see FIG. 11). The first and second moving bodies B and C are integrally connected and are located at the retreating end. When the can exchange device stops, the driving device of the first moving body B is activated and the chain 6 travels, whereby the first moving body B is driven.
And each of the second moving bodies B and C are integrally
Forward in the direction of movement. Then, as shown in FIG. 15, the cam follower portion 21a of the pressing tool 21 mounted on the first moving body B is connected to the first rail portion 19 of the cam rail 19.
a, the pressed pieces 14 of the pair of first working tools D mounted on the first moving body B are pressed by the pressing portions 21b of the pressing tools 21 and are substantially vertically folded. The pair of first action tools D is rotated to a substantially horizontal position and stopped (see FIG. 12). In this state, the first working tool D does not press the bottom surface of the coiler wheel 2, but only contacts the sliver S connected to this portion. When the first and second moving bodies B and C are further advanced as a unit and the cam follower portion 21a of the pressing tool 21 gets over the step 19c of the cam rail 19, FIG.
As shown in FIG. 16 and FIG. 16, the pair of first action tools D are slightly rotated in the same direction as described above, and their pressing plates 15,
16 presses the bottom surface of the coiler wheel 2 to sandwich the sliver S between the pressing plates 15 and 16 and the bottom surface of the coiler wheel 2, and as described above, the first moving body. The engagement between the engaging step portion 27 of the guide plate 23 pivotally attached to B and the engaging plate 28 provided on the second moving body C is released, and only the first moving body B moves forward as it is. . For this reason, each pressing plate 15, 1 of the first and second working tools D, E
The sliver S, which is sandwiched between the sliver 6 and the bottom surface of the coiler wheel 2, is stretched to release the conjugate fiber of the fiber constituting the sliver S, so that the sliver can be pulled out. -S is disconnected (see FIG. 17). Pressing tool 2
When the first cam follower portion 21a is disengaged from the second rail portion 19b of the cam rail 19, the pressing tool 21 is rotated by its own weight so that the pressing portion 21b is directed substantially upward, and the pressing portion 21b is pressed. Is released, and the first and second working tools D and E are rotated substantially by their own weight and folded substantially vertically. In this state, the chain 6 constituting the driving device of the first moving body B runs in the opposite direction to the above, and the first moving body B retreats, and at the same time, the can exchange device operates. The can rows of each delivery move at the same time, the subsequent empty can 10b is arranged at the coiling position immediately below the coiler wheel 2, and re-spinning is started. On the other hand, during the retreat of the first moving body B, the first moving body B is integrated with the stopped second moving body C, and both of them are retreated to the retreat end as they are. Return to

As shown in FIG. 18, the angle between the upper surface and the outer surface of the pressing plates 15 ', 16' attached to each working tool and pressing the lower surface of the coiler wheel 2 is formed. When the sliver S is cut into an acute angle, each of the pressing plates 15 'and 16' and the sliver S are easily caught when the sliver S is cut, so that the sliver S is reliably cut. Further, when the setting position of the coiler wheel 2 shown in FIG. 10 is set so that the sliver discharge holes 5 of the left and right delivery are located inside each other, each pressing plate 1 is set.
There is an advantage that the length of 5 and 16 can be shortened.

In the above embodiment, since the first and second moving bodies B and C are advanced in the moving direction of the can 10 to cut the sliver S, the sliver hanging down from the full can 10a. There is an advantage that the length of -S can be shortened.
However, if it is desirable that the sliver-S hanging from the full can 10a be longer, the sliver-cutting device A is disposed below the coiler device 1 in a state where the sliver-cutting device A is inverted in the front-rear direction with respect to the above-described arrangement. First and second moving bodies B and C
May be advanced in the direction opposite to the moving direction of the can 10 to cut the sliver S.

[0017]

The effects of the present invention are summarized as follows. (1) Two working tools are pressed against the lower surface of the coiler wheel to sandwich the sliver between each working tool and the coiler wheel, and only one working tool is moved in this state. Since the sliver is cut so as to be unplugged by unbinding the fibers constituting the sliver, the quality of the sliver is not deteriorated by the cutting, and fly waste is generated at the time of cutting. Not even. (2) Since the two working tools are pressed against the lower surface of the coiler wheel to cut the sliver connected from the full can between the two working tools, the cutting position of the sliver is used. Is almost constant only in a portion connected to the lower surface of the coiler wheel. For this reason, there is no possibility that the sliver is cut between the sliver discharge hole of the coiler wheel and the calendar roller arranged on the upstream side of the coiler device, and the sliver is not cut off during re-spinning. The sliver does not clog in the coiler wheel. (3) Since the can exchange device is temporarily stopped during the exchange of the can and the sliver connected from the full can is cut at the lower surface of the coiler wheel, the sliver hanging from the full can after cutting is removed. It will be shorter and will not damage the sliver during transport of the can. (4) coiler
A sliver cutting device arranged below the device
The sliver hanging down from the full can can be lengthened by reversing 180 ° with respect to the moving direction of the sliver. (5) Since the sliver is cut by pressing the two working tools against the lower surface of the coiler wheel, the sliver can be cut irrespective of the amount of sliver contained in the can. Therefore, even when the sliver in the can is small, the sliver can be reliably cut.

[Brief description of the drawings]

FIG. 1 is a perspective view of a sliver cutting device A according to the present invention in a state where first and second moving bodies B and C are located at retreat ends.

FIG. 2 is a perspective view of a sliver cutting device A according to the present invention in a state where first and second moving bodies B and C are located at a forward end.

FIG. 3 is a perspective view of the sliver cutting device A as viewed from the rear.

FIG. 4 is a perspective view of a first working tool D;

FIG. 5 is a perspective view of a second working tool E;

FIG. 6 is a side view of the sliver cutting device A in a state where the first and second moving bodies B and C are connected.

FIG. 7 is a side view of the sliver cutting device A in a state where the first and second moving bodies B and C are separated.

FIG. 8 is a pressing tool 2 constituting the working tool alternate rotation device F.
FIG. 2 is a side view of the cam follower portion 21a of the cam rail 19 detached from a second rail portion 19b.

FIG. 9 is a cam rail 1 when the first moving body B is retracted.
It is a side view which shows the positional relationship between 9 and the pressing tool 21.

10 is a plan view showing a state in which a sliver cutting device A is provided below the coiler device 1. FIG.

FIG. 11 is a front view of the sliver cutting device A in a state where the first and second working tools D and E are folded.

FIG. 12 is a front view of the sliver cutting device A in a state where the first and second working tools D and E are raised almost horizontally and are in contact with the sliver S;

FIG. 13 is a front view of the sliver cutting device A in a state where the first and second working tools D and E are horizontally raised and press the bottom surface of the coiler wheel 2;

FIG. 14 is a side view showing a state where the sliver-cutting device A is located at a retracted end.

FIG. 15 is a side view of the sliver cutting device A in a state where the first and second working tools D and E are raised almost horizontally.

FIG. 16 is a side view of the sliver cutting device A in a state where the first and second working tools D and E are horizontally raised and press the lower surface of the coiler wheel 2;

FIG. 17 is a side view of a state where the sliver-severing device A has reached the vicinity of the forward end and the sliver-S has been cut.

FIG. 18 is a pressing plate 1 having an acute angle between the upper surface and the outer surface.
It is a figure of the state which cut | disconnected the sliver S using 5 ', 16'.

[Explanation of symbols]

 A: sliver-cutting device B: first moving body C: second moving body D: first working tool E: second working tool F: working tool alternate rotating device G: moving body separating and connecting device 1 : Coiler device 2: Coiler wheel 5: Sliver discharge hole 10: Cans 15, 15 ': Press plate of second working tool 16, 16': Press plate of first working tool 19: Cam rail (Acting tool alternate rotating device) 21: pressing tool (acting device alternating rotating device) 23: guide plate (moving body separating and connecting device) 27: engaging step (moving body separating and connecting device) 28: engaging plate ( Moving body separation and connection device)

Claims (2)

(57) [Claims] A sliver connected between a full can and a sliver discharge hole of a coiler wheel is cut at a lower surface of the coiler wheel. A method of causing a pair of working tools, which are arranged at a predetermined interval along the direction of movement of a can and are folded substantially vertically, to be horizontal and press against a lower surface of the coiler wheel. Then, sliver is sandwiched between each working tool and the lower surface of the coiler wheel,
In this state, only one of the working tools is moved to release the conjugation properties of the fibers constituting the sliver, thereby cutting the sliver so as to pull it out. Method. 2. A sliver connected between a full can and a sliver discharge hole of a coiler wheel is cut off at the lower surface of the coiler wheel after the cans are stopped halfway. Sliver-cutting device for a spinning machine, which is driven by a driving device different from the spinning machine and performs a reciprocating linear movement in the direction of movement of the can, and is connected to the first moving body. And a second moving body that reciprocates linearly in the same direction, and is attached to each of the first and second moving bodies, and integrally rotates in a vertical plane orthogonal to the moving direction. And first and second working tools which are pressed against the lower surface of the coiler wheel in a state where they are raised horizontally, and the first and second working tools which are mounted on the moving bodies and perform reciprocating linear movement. 2 near the moving end of each tool An operating tool alternate rotation device for integrally rotating the operating tools between a horizontal position and a substantially vertical position, and advancing the first and second moving bodies in a connected state; A moving body for separating the two on the way and connecting the first moving body and the stopped second moving body to retreat the two together as the first moving body moves backward. Separating and connecting device,
The driving device is activated to advance the first and second moving bodies located at the retreat ends in the connected state, and is folded in a substantially vertical state by the action tool alternating rotation device on the way. The first and second working tools are raised horizontally to be pressed against the lower surface of the coiler wheel, and the coiler is moved.
The sliver is sandwiched between the wheel and each of the working tools, and thereafter, the moving bodies in the connected state are separated by the moving body separating / connecting device, and only the first moving body is moved as it is, whereby the first moving body is moved. And the second working tool and the coiler-hoyer
A sliver cutting device for a spinning machine, characterized in that the sliver is sandwiched between the lower surface of the sliver and the sliver that is cut off by pulling out the sliver.