JPH0663143B2 - Sliver gripping and feeding device in spinning machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention holds a sliver that is automatically or manually pulled out from a full can and automatically feeds the sliver to the sliver feeder of a spinning machine. The present invention relates to a sliver gripping and supplying device in a spinning machine, and is mainly applied to a spinning machine in a post-process machine in continuous spinning in two or more steps.

2. Description of the Related Art Conventionally, there are roughly two types of continuous spinning in the drawing process. That is, as disclosed in JP-B-36-18372 and JP-B-37-7932, in the first drawing machine using the revolution coiler, the sliver cutting is not performed at the time of exchanging the delivery mechanism, and the old and new The sliver is continuously accommodated in the cans, and after the replacement, the sliver is formed between the full cans, and the sliver between the full cans is lifted. Cut the sliver, and cut one of the cut sliver to the second
The one that automatically supplies to the kneading machine and the first one that uses a normal spinning coiler as disclosed in JP-B-39-27746, JP-B-39-27913 and JP-B-40-9067.
In the kneading machine, sliver cutting is performed every time the deliverence is replaced, and the full can that has been sliver cut in advance on the first kneading machine side is fed to the second kneading machine side, and the fed full can is fed. There is one that pulls out the sliver of the can and automatically supplies it to the second drawing machine. Among such conventional techniques, in the sliver cutting and feeding method disclosed in Japanese Patent Publication No. 377932, a sliver hooking device of a sliver lifting device that vertically swings a crossover sliver connected between full cans is pulled. Hang and lift, press the sliver lifted to the sliver gripping device arranged above it, and attach the lifted one side sliver to the tip of the two arm rods that swing in the front-back direction of the machine base. The pair of rotatable gripping rollers grips the sliver, and then the gripping roller that grips the sliver is swung toward the feed roller side of the drafting unit by the rotation of the arm rod. The sliver connected between the devices is cut, and the rotatable friction roller attached to the shaft end of the gripping roller is pressed against the rotating roller that is constantly rotating to rotate it. Send out the sliver forward, and supplies the sliver tip into between the feed roller of the drafting unit. In addition, the sliver supply device disclosed in Japanese Patent Publication No. 39-27913 and Japanese Patent Publication No. 40-9067, the sliver of full cans is lifted by a gripping device and guided to the upper apron roller or bot mlifting roller, and then, After sandwiching the sliver with a pressing roller or a top lifting roller, the tip of the sliver is cut by rotating the intake pipe, and then the apron roller or lifting roller is rotated to draw a new sliver. The tip of the cut sliver is collected through the intake pipe while being supplied to the section.

Problems to be Solved by the Invention Among the above-mentioned conventional techniques, in the sliver cutting and feeding device disclosed in Japanese Patent Publication No. 377932, as described above, the sliver cutting and feeding device is connected between the holding roller and the sliver holding device. The sliver is cut by the rotation of the arm rod, and the sliver after cutting is moved to the supply position behind the feed roller by the sliver that protrudes toward the delivery side. In order to easily and surely cut the sliver, the interval is usually set to about twice the average fiber length of the in-process raw material. When the in-process raw material is cotton fiber, the sliver protrusion from the gripping roller after cutting The amount is about 30 to 40 gruel. Therefore, if the gripping roller moves to the feed roller side after cutting the sliver,
During the movement, the sliver protruding toward the delivery side was often bent upward or downward and supplied to the feed roller. In this way, when the hook-shaped sliver with the bent tip is supplied to the drafting section, the collective drafting causes a thickness unevenness in the spun sliver, and the sliver is deployed at the inlet of the coiler section. The sliver is clogged in the focusing trumpet portion, and the sliver is cut off on the downstream side of the sliver to stop the machine base. In addition, the above
In the sliver feeder disclosed in Japanese Patent No. 39-27746, the sliver hanging from the can cans is attracted to the surface of the cage roller and pressed to the horizontal upper apron for delivery, so that the sliver tip portion Is bent and supplied between the upper and lower aprons. Therefore, as in the prior art of Japanese Patent Publication No. 377932, there is a disadvantage that the machine stand is stopped due to the sliver cutting due to the thickness unevenness of the spun sliver and the clogging of the trumpet. On the other hand, as in the prior arts of Japanese Patent Publication No. 39-27913 and Japanese Patent Publication No. 40-9067, in which the sliver tip is cut and removed by the suction force of the intake pipe and its rotation, the sliver is supplied. Although the bending of the sliver tip portion is small, there is a drawback in that the sliver is wasted and a filter box for collecting cotton is required.

Means for Solving the Problems In view of the current state of the art as described above, the present invention provides a sliver grip supply in a spinning machine in which a sliver end taken out from a full can is supplied to a sliver supply section of the spinning machine. In the apparatus, a swing arm that can swing between a sliver supply position that is close to a sliver supply portion of a spinning machine and a sliver reception position that is separated from the spinning machine, and a pair of swing arms that can be opened and closed and can be rotated forward and backward. Gripping roller, a reversing drive means capable of rotating the gripping roller in the sliver return direction at the sliver receiving position, a detection device for detecting the protrusion amount of the end of the sliver gripped by the gripping roller, and sending the gripping roller out of the sliver. The sliver can be rotated in any direction, and the sliver protrusion amount from the gripping roller can be shortened as much as possible when supplying the sliver. It is an object of the present invention to provide a sliver gripping and supplying device for a spinning machine, which can supply the bar tip without bending and does not need to cut and remove the sliver and can prevent generation of waste cotton.

Action When supplying the sliver end of the can to the sliver supply part of the spinning machine, the sliver is pulled out from the can to can automatically or manually, and the sliver pulled out stands by at the sliver receiving position in an open state. Of the sliver, which is then closed and pulled up by the gripping roller, is reversed by the driving means for reverse rotation to pull the sliver back toward the full can, and when the detecting means detects the sliver end, The gripping rollers stop. As a result, the sliver protruding toward the delivery side of the gripping roller has an extremely short length. Next, the swing arm swings to the sliver supply position, the gripping roller is rotated forward by the normal rotation drive means at that position, the gripped sliver is sent forward, and the sent-out sliver tip portion is fed to the sliver supply unit of the spinning machine. Supply to. After that, the swing arm is returned to the sliver delivery position, and the normal rotation of the gripping roller is stopped and released. Example Hereinafter, the present invention will be described in detail with reference to an example shown in the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a first drawing machine of 1 head 1 delivery which is a spinning machine of a front process machine, and a downstream part (front side) of the first drawing machine 1 has a post-process. The second drawing machine 2 which is a spinning machine of the machine is arranged at an appropriate interval, and a can circulation movement having an oblong-shaped can passage 3 between the first drawing machine 1 and the second drawing machine 2. Device 4 is deployed.
As is well known, the spinning machine of the pre-process machine may be a sliver forming machine such as a card or a comber. This can circulation device 4
On the can passage 3 on the side of the first drawing machine, the delivery cans 5 of the first drawing machine 1, the empty cans 6 for can replacement, and the full cans 7 are arranged in a semicircular shape with appropriate intervals. ,
The sliver spun from the first drawing machine 1 is housed in the delivery mechanism 5 among them. In addition, on the can passage 3 on the side of the second drawing machine, a predetermined number of feed cans 8 of the second drawing machine 2 (the same number as the doubling number, the illustrated example shows a case of 5), and at least one feed can 8. Empty cans 9 are arranged. The feed cans 8 are taper-prepared in advance by gradually reducing the sliver accommodation amount to a predetermined amount at the time of work in progress, and the sliver in the taper-prepared feed cans is operated by the second drawing machine 2. As a result, they are exhausted in order from one side. On the other hand, a can-exchange arm 10 is provided on the downstream side of the delivery mechanism 5 of the first drawing machine 1, and the can-exchange arm 10 is rotated in a direction indicated by a predetermined angle every time the first drawing machine 1 is full. The empty can 6 on the first drawing machine side and the full delivery can 5 are automatically exchanged, and the full cans 7 are sent from the outlet position to the sliver supply position. Further, the can passage 3 of the can circulation device 4 in which the feed can 8 on the side of the second drawing machine is arranged is equipped with a positively driven roller conveyor 11, and by the rotation of the roller conveyor 11 and the can exchanging arm 10. The feed can 8 is moved in the direction indicated by one can each time the first drawing machine 1 is full. Further, at the exit position of the full cans 7, there is provided a turntable 12 which gently rotates in the direction shown in the drawing in response to a command such as a can replacement completion signal from the first drawing machine 1 and is placed on the turntable 12. The end of the sliver hanging from the full can can is detected by a detector such as a photoelectric tube attached to the suction nozzle 17 of the suction arm 13 described later, and is positioned at a predetermined outlet position. Further, a suction arm 13 capable of adsorbing the positioned sliver end and pulling the sliver upward from the full can can 7 is provided on the front side of the full can 7, and the base of the suction arm 13 is a can. It is connected to a swivel device 15 and a swing device 16 on a stud 14A of a pedestal 14 arranged in the central portion of the circulation moving device 4, and an intake source (not shown). A swinging device that swings in the front-rear direction at a predetermined angle and
It is configured to swing vertically by a predetermined angle by 16. Further, the suction arm 13 has a wire net 17a attached to the suction port of the suction nozzle 17 at the tip thereof, and the wire net 17a sucks and holds the sliver end to pull up the sliver of the full cans 7. There is. A sliver gripping and feeding device 18 for receiving the sliver 31 drawn from the full cans 7 by the suction arm 13 and supplying it to the second drawing machine 2.
Is a sliver conveyor extended to the rear side of the second drawing machine 2.
Upper and lower parts that make up the sliver supply unit arranged on the machine frame of 19
It is arranged behind the pair of feed rollers 20a and 20b and the screw guide 21. In this sliver gripping and supplying device 18, the pedestal 14 installed at the center of the can circulation device 4
A stand 22 is fixedly mounted on the upper side of the stand 22, and inside the upper part of the stand 22, a sliver supply position close to the feed rollers 20a and 20b and a sliver reception position separated from the feed rollers 20a and 20b by a swing motor 23 and the like A swing arm 24 that rotates in a predetermined direction is pivotally supported, and a fixed-side gripping roller 25 is rotatably supported by the upper end of the swinging arm 24, and the gripping roller 25 has a shaft end. The attached friction roller 26 comes into pressure contact with the friction roller 27 attached to the output shaft of the reverse rotation motor M1 provided on the stand 22 at the gripping position of the sliver shown in FIG. Also, this fixed side gripping roller 25
A gripping roller 28 on the movable side corresponding to is pivotally supported on the tip end of a swing rod 29 pivotally supported on the swing arm 24, and via a swing motor 50 connected to the support shaft of the swing rod 29. The oscillating rod 29 rotates at a predetermined angle, and the movable holding roller 28 at its tip portion comes into pressure contact with or separates from the fixed holding roller 25. Above the gripping roller 25 located at the gripping position of the sliver shown in FIG.
And the sliver pulled up by the suction arm 13
It is designed to detect 31 and its sliver end. Further, a V guide 32 is fixedly provided on the upper surface of the stand 22 to guide the sliver 31 pulled back by the suction arm 13 when the sliver 31 is pulled back. Also, this V guide
The sliver 31 released from the suction arm 13 to the upper side in FIG.
A receiving plate (not shown) may be provided for receiving the same. Further, as shown in FIG. 3, on the upstream side of the feed rollers 20a, 20b arranged on the upstream side (rear end side) of the second drawing machine 2,
A normal rotation friction roller 33 driven from the feed roller 20a via a pulley and a belt is provided, and the fixed side gripping roller 25 is rotated by the swing arm 24 so that the sliver shown in phantom in FIG. When moving to the supply position, the friction roller 26 fixed to the shaft end of the gripping roller 25 is
The sliver 31 gripped by being pressed against 33 and rotating the gripping rollers 25 and 28 in the forward direction is fed forward. still,
The screw guide 21 provided on the rear end side of the second drawing machine 2 is
As shown in FIG. 1, the motor is connected via a pulley and a belt.
New sliver 31 is connected to M2 and feed roller 20
When it is supplied between a and 20b, it intermittently rotates for one rotation via the motor M2.

In the present embodiment as described above, when the delivery counter 5 of the first drawing machine 1 is full and a full can command is output from the auto counter (not shown), the first full can command is output based on the full can command. After the continuous machine 1 is stopped, the can changing arm 10 and the roller conveyor 11 are rotated substantially at the same time, and the automatic delivery of the delivery can 5 and the empty can 6 on the side of the first drawing device and the feeding position of the full can 7 And the empty can 9 is fed to the standby position on the first drawing machine side, and the feed can 8 on the second drawing machine side is moved to the next position. When the can replacement of the first drawing machine 1 is completed, the full delivery can 5 is placed on the turntable 12 at the feeding position, and a command is issued from the detector for completion of the can replacement by the limit switch or the like. The swivel device 15 is operated based on the can replacement instruction, and the suction arm 13 waiting in the retracted position shown by the solid line in FIG. 1 rotates counterclockwise in FIG. The suction arm 13 reaches the forward position indicated by the phantom line, and then the suction arm 13 is lowered by the rocking device 16 from the raised position to the lower position indicated by the phantom line in FIG. When approaching the outer peripheral side of the canned can 7, suction of the suction nozzle 17 is started. Also,
When the suction arm 13 reaches the lowered position and a limit switch (not shown) is actuated, the turntable 12 is rotated by the detection command to rotate the full cans 7 in the direction of the arrow, and the sliver end hanging from the full cans 7. Are adsorbed and held on the surface of the wire net 17a of the suction nozzle 17. When a detector (not shown) such as a photoelectric tube attached to the suction nozzle 17 detects the sliver captured by the suction nozzle 17, rotation of the turntable 12 is stopped and the swinging device 16 is activated by the detection signal. , The suction arm 13 rises from the lowered position and pulls out the sliver 31 from the full can. When the suction arm 13 reaches the raised position, the swivel device 15 operates, the suction arm 13 swivels in the clockwise direction in FIG. 1 and returns to the retracted position shown by the solid line in FIG. 1 again. As a result, the sliver 31 pulled up from the full cans 7 is held in the open state at the sliver receiving position as shown in FIG. Will be introduced in between. Next, when the detecting device 30 such as a photoelectric tube detects the sliver 31 introduced between the gripping rollers 25 and 28, the movable gripping roller 28 is rotated in the clockwise direction in FIG. The gripping roller 28 on the movable side and the gripping roller 25 on the fixed side grip the part of the sliver 31 closer to the full cans than the gripping position. Further, when the sliver 31 is gripped by the gripping rollers 25, 28, the suction nozzle 17 and the suction source of the suction arm 13 that have adsorbed the sliver end are stopped, the grip is released, and the tip of the sliver 31 pulled up. The part falls on the lower V guide 32 and the receiving plate (not shown). When the tip portion of the sliver 31 is released in this way, the reverse feeding motor M1 is activated, and the fixed-side gripping roller 25 and the movable-side gripping roller 28 are moved in the sliver return direction via the friction rollers 27 and 26. When the sliver 31 gripped by reverse rotation is pulled back to the full cans 7 side, and the tip of the sliver 31 is detected by the detector 30 such as a photoelectric tube, the motor M1 for reverse feeding is fed.
Stops and the gripping rollers 25, 28 stop. This sliver
By pulling back the sliver 31, the amount of protrusion of the sliver 31 protruding from the gripping rollers 25, 28 to the delivery side becomes extremely short.
In this way, the sliver pulled from the canned cans 7
Sliver gripping and feeding device 18 gripping and pulling back 31
The oscillating arm 24 and the gripping rollers 25, 28 stand by at the gripping position until the next can change of the first drawing machine side and the movement of the second drawing machine side feed can. After that, the can on the side of the first drawing machine and the movement of the feed can on the side of the second drawing machine are performed, one of the feed cans 8 becomes empty, and the sliver end of the feed can 8 is fed. When a command is issued from the succeeding commanding means such as a photoelectric tube (not shown) approaching the rollers 20a, 20b, the rocking motor 23 operates based on the command, and the rocking arm 24 waiting in the gripping position. The gripping rollers 25, 28 move to the front sliver supply position. In this case, the sliver protruding from the gripping rollers 25, 28 to the delivery side does not bend during the movement of the gripping rollers 25, 28 because of its short length. When the gripping rollers 25, 28 reach the supply position, the friction roller 26 fixed to the shaft end of the gripping roller 25 is brought into pressure contact with the rotating friction roller 33 for feeding, and the gripping rollers 25, 28 are normally rotated, respectively. The grasped sliver 31 is fed forward, and the tip end of the sliver is fed between the feed rollers 20a and 20b. In this way, when a new sliver 31 is gripped between the feed rollers 20a and 20b of the second drawing machine, the feed roller 20a
The screw guide 21 arranged on the upstream side of a rotates once by the rotation of the motor M2, and horizontally moves the other sliver by one pitch. When a new sliver 31 is gripped between the feed rollers 20a and 20b, the movable gripping roller 28 and its swing rod 29 are opened by the swing motor 50, and the sliver slipped out from the gripping rollers 25, 28. 31 enters into the groove on the one end side of the screw guide 21 which is revealed by the lateral movement, and is continuously supplied. Also, the new sliver 31
The gripping rollers 25, 28 after
25, 28 and the swing arm 24 are returned from the supply position to the gripping position by the swing motor 23, and the movable side gripping roller 28 waits until the next sliver supply at the opening. After that, the suction arm was transferred every time the full can was transferred onto the turntable 12 at the exit position by replacing the can on the first drawing machine side.
13 and the sliver gripping and supplying device 18 operate in the same manner as described above, and a new sliver is fed to the feed roller of the second drawing machine 2.
Supply between 20a and 20b.

Although the sliver gripping and supplying device 18 in the above embodiment has been described with respect to the case where the gripping means of the sliver 31 is constituted by the pair of gripping rollers 25 and 28, the present invention is not limited to this, and the fifth embodiment As shown in the figure, the gripping rollers 25A and 28A with aprons (or known tenserver-type gripping rollers with aprons) are used, and when the sliver 31 is pulled back, the sliver end is held by the gripping rollers 25A with aprons. , 28A, the sliver does not project to the delivery side of the gripping rollers 25A and 28A, and the bending of the sliver tip can be completely eliminated. Further, in the sliver gripping and supplying device 18 of the above-described embodiment, the driving means for reversing the gripping rollers 25, 28 is composed of the motor M1 and the friction roller 27, and the driving means for forward rotation is the shaft of the gripping roller 25. Friction roller 26 stuck to the edge
And the friction roller 33 and the like arranged on the side of the second drawing machine, the present invention is not limited to this. The gripping rollers may be rotated in the forward and reverse directions via the transmission means. Further, in the above-mentioned embodiment, the case of continuous spinning in which the sliver 31 is automatically pulled out from the full cans 7 by the suction arm 13 has been described, but the sliver gripping and feeding device of the present invention is not limited to this. It can also be applied to the case of a single spinning machine in which the sliver is pulled out from a can of cans.

As described above, according to the present invention, the sliver pulled out from the full can is delivered to a pair of openable and closable gripping rollers equipped at the tip of the swing arm, gripped by the gripping rollers, and the sliver is received. The gripping roller is reversed at the position until the detection device detects the tip of the sliver, and the gripped sliver is pulled back.At the sliver supply position, the gripping roller is rotated forward and the sliver is fed forward. The amount of sliver protruding from the sliver to the delivery side can be shortened as much as possible, and the sliver end can be fed straight. The supply can be ensured. Further, since it is not necessary to cut and remove the sliver, waste cotton is not generated, and a filter box for collecting waste cotton can be eliminated.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a side view, FIG. 3 is a partially enlarged plan view of an essential part, FIG. 4 is an enlarged side view of the essential part, and FIG. It is an expanded side view which shows other Examples of a roller. 7 ... Canned can, 13 ... Suction arm, 17 ... Suction nozzle, 20a, 20b ... Feed roller (sliver supply section), 24 ...
… Swinging arm, 25 …… Grip roller, 26 …… Friction roller (forward rotation drive means), 27 …… Friction roller (reverse rotation drive means), 28 …… Grip roller, 30 …… Detection device, 31 …… Sliver, 33 …… Friction roller (forward rotation drive means), M1 …… Motor (reverse rotation drive means)

Claims (1)

[Claims] 1. A sliver gripping and feeding device for a spinning machine, wherein a sliver end portion taken out of a full can is fed to the sliver feeding portion of the spinning machine. The swing arm that can swing to the sliver receiving position, a pair of gripping rollers that can be opened and closed and can be rotated forward and backward on the swing arm, and the gripping roller that can rotate in the sliver return direction at the sliver receiving position A reverse rotation drive means, a detection device for detecting the amount of protrusion of the end of the sliver gripped by the gripping roller, and a forward rotation drive means capable of rotating the gripping roller in the sliver feed-out direction. Sliver gripping and feeding device for spinning machine.