JP3568031B2 - Bobbin residual yarn processing device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to an apparatus for removing a thread remaining on a bobbin.
[0002]
[Prior art]
As a method of supplying a warp to a loom, there are a method of arranging thousands of bobbins in a creel and supplying the bobbin directly to the loom, and a method of winding a warp around a warping beam and installing and supplying the warp to the loom.
[0003]
Many yarns used in car seats and carpets are yarn-dyed yarn.When changing the warp supply by creel, the yarn remaining on the bobbin due to the difference in color and count from the next lot yarn is used. Instead, thousands of bobbins with residual yarn are generated.
[0004]
Further, when a warp is wound around a warp beam, the spun yarn is finished at a set length after the gluing step, so that the remaining yarn amount of each bobbin varies. If a bobbin with a small remaining yarn amount is used at the next winding on the warping beam, the yarn will be lost in a short time, and the next bobbin will be installed and the process of connecting the front end of the bobbin yarn and the rear end of the beam yarn will occur. Since the number of knots which cause the warp breakage of the loom also increases, an unused residual yarn bobbin is generated.
[0005]
In order to newly wind a different twisted yarn on the bobbin, it is necessary to remove the remaining yarn remaining on the bobbin, cut it off manually with a knife, or fit a plurality of yarns on the bobbin support. Then, each yarn end was manually unwound and removed by a winding machine such as a skein machine.
[0006]
[Problems to be solved by the invention]
However, cutting and removing with a knife manually requires time and effort, and there is a risk of injury. In addition, a sharp knife wound remains on the bobbin, and when the yarn from the bobbin is unwound, the wound and the unwound yarn come into contact with each other, causing the yarn to break. Had a defect.
[0007]
In addition, the rewinding operation using a winding machine such as a skein machine is inefficient because the ratio of manual work is large. Furthermore, if a plurality of bobbin supports are erected in a horizontal plane and rewinded at a high speed, the unwinding of the unwound yarn may cause the bobbins to be detached from the bobbin supports and collide with the worker. There were also problems.
[0008]
[Means for Solving the Problems]
The present invention is intended to solve the above-described problem, and includes a plurality of bobbins around which the remaining yarn is wound, a yarn guide that guides the remaining yarn drawn from each bobbin to one place, and a collected remaining yarn. A rotating roller that is wound up in contact with a rotating disk, a disk-shaped rotating plate that is disposed vertically at a predetermined position and turns the bobbin in a horizontal direction, and rotates around a central axis via a driving unit; A bobbin gripper that stands upright and grips each bobbin, the bobbin gripper that grips the bobbin is detachable with respect to a base disposed on a rotating plate, and is a tip end side that is movable in the axial direction of the bobbin. A central shaft having a tapered portion, a plurality of expandable clamps loosely fitted to the shaft fixed to the base, an elastic body for tightening the outer periphery of the clamp, and a shaft fixed to the clamp. A roller and a roller The tapered portion of the central axis spindle by expanding the clamp around a by rolling with releasing the gripping of the bobbin, the axial directions of the bobbin is arranged to be inclined toward the center of the disc-like rotary plate The thread guide is disposed so as to be located at an intersection on the extension line in the axial direction of each bobbin.The thread guide is held between the surface of the rotating roller and the following endless belt so that the thread is sucked by the suction nozzle. It is configured such that the residual yarn is stored in the container.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is an overall front view showing a state in which a residual yarn bobbin is mounted on a residual yarn processing device and the residual yarn has been removed. FIG. 2 is a view taken in the direction of the arrow A in FIG. FIG. 3 is a front view showing a state where the bobbin outer peripheral surface gripping tool is gripping the bobbin. FIG. 4 is a cross-sectional view illustrating a state in which the bobbin outer peripheral surface gripping tool is gripping the bobbin. FIG. 5 is a front view showing a state where the bobbin outer peripheral surface gripper has released the bobbin grip. FIG. 6 is a cross-sectional view showing a state in which the bobbin outer peripheral surface gripper has released the bobbin grip. FIG. 7 is a front view showing a state in which the bobbin inner peripheral surface gripper is gripping the bobbin. FIG. 8 is a cross-sectional view showing a state in which the bobbin inner peripheral surface gripping tool is gripping the bobbin. FIG. 9 is a cross-sectional view showing a state in which the bobbin inner peripheral surface gripper has released the bobbin grip. FIG. 10 is a perspective view showing a state in which the remaining yarn is nipped and conveyed by the rotating roller and the pressing means. FIG. 11 is a sectional view of the suction nozzle.
[0010]
The plurality of bobbin gripper bases 3 are tilted so that the thread guides 5 coincide with the intersections of the extension lines in the axial direction, and are erected on the outer edge side of the rotating plate 2. The rotary plate 2 is inserted into the center shaft 7 and continuously rotates at a low speed around the center shaft 7 in a vertical plane by a motor 27 with a transmission. The rotating roller 6 is connected to a motor (not shown), rotates at high speed, and presses the endless belt 8. The compressed air is sent from the tube 10 to the suction nozzle 9, passes through the inside, and is then exhausted to the air-permeable net basket 11. The reflection type photoelectric tube sensor 14 is disposed near the remaining yarn running line of the lower end bobbin 15, and the air cylinder 28 is operated by the electric signal of the reflection type photoelectric tube sensor 14, so that the dog 16 moves right and left. When the unwinding is completed and the remaining yarn is not detected, the dog 16 moves rightward in the drawing, abuts the center axis 25d or 26d of the bobbin outer peripheral surface gripper 25 or the bobbin inner peripheral surface gripper 26, and the lower end portion Release the bobbin 15 and drop it. The next remaining yarn bobbin 1 is manually pushed into the empty bobbin outer peripheral surface gripping device 25 or the bobbin inner peripheral surface gripping device 26 so that the remaining yarn bobbin 1 is gripped. It is entangled by dropping on the yarn 4, and the remaining yarn is continuously removed.
[0011]
3 and 4 show a state in which the bobbin outer peripheral gripping tool 25 grips the outer peripheral end of the straight bobbin 12. The semi-cylindrical clamp 25b is loosely fitted on a shaft 25c fixed to the bobbin gripper base 3, and an elastic body 25a is stretched around the outer periphery. The contracting force of the elastic body 25a causes a diameter reducing force to act on the shaft 25c as a support shaft, thereby clamping and holding the outer peripheral end of the bobbin 12.
[0012]
FIGS. 5 and 6 show a state in which the bobbin outer periphery gripping tool 25 has released the bobbin gripping. The center shaft 25d is loosely fitted to a bearing 25e made of a sintered oil-impregnated metal, and slides rightward in the drawing when it comes into contact with the dog 16. A shaft 25i is fixed to a semi-cylindrical clamp 25b, and a rotatable roller 25f is provided. The roller 25f rolls along the tapered portion 25g of the central shaft 25d whose diameter is reduced toward the distal end, and expands the clamp 25b about the shaft 25c against the diameter reducing force of the elastic body 25a to form a bobbin. Is released. The straight bobbin 12 falls into the empty bobbin storage box 13. Further, when the center shaft 25d slides rightward in the drawing, the outer peripheral surface of the roller 25f reaches the groove 25h and is locked, and the clamp 25b stops in an open state. In order to grip the straight bobbin 12, the center bobbin 25d is slid leftward by pushing the straight bobbin 12 leftward in the drawing. As a result, the outer peripheral surface of the roller 25f rolls from the groove 25h to the tapered portion 25g, and the clamp 25b is closed and gripped in the direction of the central axis 25d by the diameter reducing force of the elastic body 25a about the axis 25c. The elastic body 25a of the present embodiment is a metal spring, but may be an elastic body made of rubber or synthetic resin.
[0013]
FIGS. 7 and 8 show a state in which the bobbin inner peripheral gripper 26 grips the cone bobbin 23. The semi-cylindrical clamp 26b is loosely fitted on a shaft 26c fixed to the bobbin gripper base 3, and an elastic body 26a is stretched on the outer periphery of the left end. A rubber O-ring 26i is disposed on the outer periphery of the right end, and presses and holds the inner peripheral end of the cone bobbin 23 in a direction in which the inner peripheral end of the cone bobbin 23 is opened by the contraction force of the elastic body 26a. The rubber O-ring 26i and the inner peripheral surface 24 are securely gripped by the frictional force. In the present embodiment, the inner peripheral surface 24 is a cone bobbin 23 having a tapered shape, but may be a straight bobbin whose inner peripheral surface is straight.
[0014]
FIG. 9 shows a state in which the bobbin inner peripheral gripping tool 26 has released the bobbin gripping. The center shaft 26d is loosely fitted to a bearing 26e made of a sintered oil-impregnated metal, and slides rightward in the drawing when it comes into contact with the dog 16. A shaft 26l is fixed to a semi-cylindrical clamp 26b, and a rotatable roller 26f is provided. The roller 26f moves along the tapered portion 26g, and the left side of the clamp 26b expands around the shaft 26c against the contraction force of the elastic body 26a, and the right end decreases in diameter. Thereby, the gripping of the cone bobbin 23 is released, and the cone bobbin 23 falls. Further, when the center shaft 26d slides rightward in the drawing, the outer peripheral surface of the roller 26f reaches and locks the groove 26h, and the right end of the clamp 26b stops with its diameter reduced. To grip the cone bobbin 23, the central shaft 26d slides to the left by pushing the plate 26j fixed to the central shaft 26d by the E-ring 26k to the left in the drawing. As a result, the outer peripheral surface of the roller 26f rolls from the groove 26h to the tapered portion 26g, the right end of the clamp 26b expands around the shaft 26c as a support shaft, and presses and holds the inner peripheral surface 24. In addition, even if it is a straight bobbin whose inner peripheral surface is straight, it is possible to hold it.
[0015]
FIG. 10 shows a state in which the remaining yarn 4 is nipped and conveyed by the rotating roller 6 and the endless belt 8 which is a pressing means. The belt roller 19 is rotatably provided on the roller shaft 18, and the endless belt 8 is attached to the two belt rollers 19. The swing arm 17 can swing about the shaft 20 as a support shaft, and is pressed in the direction of the rotating roller 6 by pressing means (not shown). The remaining yarn 4 is conveyed while being held between the outer peripheral surface of the rotating roller 6 rotating at high speed and the endless belt 8. Although the present embodiment shows an endless belt made of rubber, an endless belt coated with an elastic synthetic resin may be used. The pressing means may be a roller coated with rubber or a synthetic resin having elasticity.
[0016]
FIG. 11 is a sectional view of the suction nozzle 9, and compressed air is sent from the tube 10. The nozzle 22 is provided with a hole 22a obliquely downward in the drawing. The compressed air passes through the inner hole of the nozzle 22 and is exhausted downward in the figure. As a result, the funnel-shaped hole 21 becomes negative pressure, air is sucked, and the air passes through the inner hole of the nozzle 22 and is exhausted downward in the figure. The remaining yarn 4 is transported together with the sucked air and compressed air.
[0017]
In the present embodiment thus configured, the process of transporting the remaining yarn will be described in order. The remaining yarn bobbin 1 is manually held by the bobbin outer peripheral surface gripping tool 25 or the inner bobbin outer surface holding tool 25 provided on the outer edge side of the rotary plate 2. It is attached to the peripheral surface holding tool 26. The yarn end of the remaining yarn is entangled by dropping onto the remaining yarn 4 in the middle of unwinding, passes through the yarn guide 5 and is conveyed to the rotating roller 6, and is nipped by the rotating roller 6 and the endless belt 8 to the suction nozzle. And stored in the container 11. It is preferable that the container 11 has a net shape and has air permeability. At the lower end bobbin 15 where the unraveling of the residual yarn has been completed, the residual yarn traveling to the reflection type photoelectric tube sensor 14 is not detected, and the dog 16 moves rightward by the operation of the air cylinder 28, so that the bobbin outer peripheral surface gripping tool 25 Alternatively, it is automatically dropped from the bobbin inner peripheral surface holding tool 26 and stored in the empty bobbin box 13. It is preferable that the position where the unwinded bobbin falls is not below the remaining yarn 4 in the middle of unwinding, and the reflection type photoelectric tube sensor 14 is disposed on the axial extension of the lower end bobbin. It is arranged at the lower end of the rotating plate 2.
Even when the lower end bobbin 15 reaches the lower end, the dog 16 moves to the left, and the unwinding is continued without dropping from the bobbin outer peripheral surface gripper 25 or the bobbin inner peripheral surface gripper 26.
[0018]
【The invention's effect】
As described above, the residual yarn processing device according to the present invention includes a plurality of bobbins around which residual yarns are wound, a yarn guide for guiding the residual yarn drawn from each bobbin to one place, and a collected residual yarn. A rotating roller that is brought into contact with and rolls up, a disk-shaped rotating plate that is disposed vertically at a predetermined position and turns the bobbin in the horizontal direction, and rotates around a central axis via a driving unit, and an outer peripheral side of the rotating plate. A plurality of bobbin grippers for standing and holding each bobbin, wherein the bobbin gripper for gripping the bobbin is detachably attached to a base provided on a rotary plate, and a tip movable in the axial direction of the bobbin. A central shaft having a tapered portion on the side, a plurality of expandable clamps loosely fitted to the shaft fixed to the base, an elastic body for tightening the outer periphery of the clamp, and a shaft fixed to the clamp. And a roller, Support shaft is expanded to clamp around a by rolling the tapered portion of the mandrel together to release the grip of the bobbin, the axial directions of the bobbin is arranged to be inclined toward the center of the disc-like rotary plate The yarn guides are arranged so as to be located at intersections on the extension lines of the bobbins in the axial direction, and the unwinding of the remaining yarns is in the horizontal direction. When the bobbin gripper is erected on a horizontal plane, the remaining yarn is unwound upward and the unwinding tension increases due to the self-weight of the yarn, but the self-weight of the yarn is unwound from the bobbin in the horizontal direction. And the increase in unwinding tension can be reduced, and yarn breakage is reduced. The remaining yarns of a large number of bobbins are configured to be collected on the intersections of the bobbin axes, so that there is no breakage in the middle and many bobbin remaining yarns can be removed at high speed. In addition, the remaining yarn is reliably unwound at a high speed by being sandwiched between the outer peripheral surface of the rotating roller and the endless belt, and is stored in a container without being stopped by the suction nozzle. Is expensive. Since the conveying direction of the remaining yarn is the lateral direction away from the operator, it is safe. Further, the bobbin is not damaged and the service life of the bobbin is extended. The remaining yarn bobbin is pressed into the bobbin gripper with one touch, and the bobbin gripper is easily and reliably gripped by the bobbin gripper. The empty bobbin from which the residual yarn has been unwound is automatically dropped from the bobbin gripper and stored in the empty bobbin box, and the residual yarn is sequentially stored in the container after passing through the suction nozzle, so that the effect of labor saving is great.
[Brief description of the drawings]
FIG. 1 is an overall front view showing an embodiment of the present invention.
FIG. 2 is a view taken in the direction of arrow A in FIG. 1;
FIG. 3 is a front view showing a state in which the bobbin gripper is gripping the bobbin.
FIG. 4 is a cross-sectional view showing a state in which the bobbin gripper is gripping the bobbin.
FIG. 5 is a front view showing a state in which the bobbin gripper has released the bobbin grip.
FIG. 6 is a cross-sectional view showing a state in which the bobbin gripper has released the bobbin grip.
FIG. 7 is a cross-sectional view showing a state in which the bobbin gripper is gripping the bobbin.
FIG. 8 is a front view showing a state in which the bobbin gripper releases the bobbin grip.
FIG. 9 is a cross-sectional view showing a state in which the bobbin gripper has released the bobbin grip.
FIG. 10 is a perspective view showing a state in which the remaining yarn is nipped and conveyed by a rotating roller and a pressing unit.
FIG. 11 is a sectional view of a suction nozzle.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Residual thread bobbin 2 Rotating plate 3 Bobbin gripper base 4 Residual thread 5 Thread guide 6 Rotary roller 7 Center shaft 8 Endless belt 9 Suction nozzle 10 Tube 11 Container 12 Straight bobbin 13 Empty bobbin box 14 Reflective photoelectric tube sensor 15 Lower end bobbin 16 dog 17 swing arm 18 roller shaft 19 belt roller 20 shaft 21 funnel-shaped hole 22 nozzle 23 cone bobbin 24 inner circumferential surface 25 bobbin outer circumferential surface gripping tool 25a elastic body 25b clamp 25c shaft 25d center shaft 25e bearing 25f roller 25g taper portion 25h groove portion 25i shaft 26 bobbin inner peripheral surface gripper 26a elastic body 26b clamp 26c shaft 26d center shaft 26e bearing 26f roller 26g taper portion 26h groove portion 26i O-ring 26j plate 26k E-ring 26l shaft 27 motor 2 with transmission An air cylinder

Claims (4)

A plurality of bobbins around which the remaining yarn is wound, a yarn guide for guiding the remaining yarn drawn from each bobbin to one place, a rotating roller for bringing the collected remaining yarn into contact and winding the same, A disk-shaped rotating plate that is disposed and turns the bobbin in the lateral direction and rotates around a central axis via driving means, and a bobbin gripper that is provided on the outer peripheral edge side of the rotating plate and that grips each bobbin. A bobbin gripper for gripping the bobbin is detachably attached to a base provided on the rotary plate, and is fixed to the base and a center shaft having a tapered portion at a distal end movable in the axial direction of the bobbin. A plurality of expandable clamps loosely fitted on the shaft, an elastic body for tightening the outer periphery of the clamp, and a roller disposed on the shaft fixed to the clamp. Centering on the spindle by moving Together by spreading the clamp to release the grip of the bobbin and the axial direction of the bobbins is arranged to be inclined toward the center of the disc-like rotary plate, the yarn guide, the extension of the axial direction of each bobbin A bobbin remaining yarn processing device, which is disposed so as to be located at an intersection. 2. The bobbin residual yarn processing device according to claim 1, wherein the clamp of the bobbin gripper is reduced in diameter and is held in contact with an outer peripheral surface of the bobbin. The bobbin residual thread treatment according to claim 1, wherein the bobbin has an internal cavity, and the clamp of the bobbin gripping tool expands outward and grips the bobbin in contact with the inner peripheral surface of the bobbin. apparatus. A sensor is arranged on an axial extension of the lower end bobbin which is held by the bobbin holding tool and positioned at the lowermost end by the rotation of the rotary plate, and is connected to position moving means operated by a signal from the sensor. 2. The bobbin residual yarn processing device according to claim 1, wherein the center axis moves in the axial direction when the center axis of the dog is brought into contact with the dock, thereby opening and closing the clamp.

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