JPH06235132A - Apparatus for holding and treating sliver of sliver piecer - Google Patents

Abstract

PURPOSE:To shorten the time of sliver piecing operation and simplify the control of a driving arm for moving a sliver holder. CONSTITUTION:A sliver introducing part 13 is installed in the front of a sliver piecer 9 and a sliver piecing unit is arranged at a position corresponding to the introducing part 13. A cotton collecting box 25 is provided on one side of a housing 10 and a driving arm 27 composed of the first arm (27a) and a hollow arm (27b) is installed on the opposite side. A supporting cylinder of a sliver holder 29 is supported on the tip of the second arm (27b). A suction pipe 30 is rotatably and loosely fitted to the outside of the supporting cylinder and rotated by a rotary actuator 32. A throughhole corresponding to a suction port (30a) is formed in the supporting cylinder, which communicates through the second arm (27b) and a bellows hose 37, etc., with the cotton collecting box 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliver gripping / processing device for a sliver splicer used in a spinning machine such as a roving machine and a kneading machine.

[0002]

2. Description of the Related Art In recent years, various automations have been carried out in spinning factories for labor saving and productivity improvement, and automation of sliver splicing work in spinning machines such as a roving machine and a kneading machine has also been proposed (for example, JP-A-2-91233, etc.).
The sliver splicing machine disclosed in Japanese Patent Application Laid-Open No. 2-91233 is equipped with an arm having a sliver gripping device in an automatic machine and a sliver piecing unit. Then, during the sliver splicing work, the sliver being spun, which is connected to the spinning machine, is introduced into the introduction portion of the sliver piecing unit and is gripped by the sliver piecing unit. Next, the sliver gripping device grips the sliver on the upstream side (on the side of the can) of the sliver piecing unit and moves in a direction away from the sliver piecing unit to cut the sliver. Next, the sliver gripping device grips the end of the sliver housed in the spare can and introduces the sliver into the introduction part of the sliver piecing unit so as to overlap the sliver terminal part held by the sliver piecing unit. Then, the sliver gripping device is moved in a direction away from the sliver piecing unit while the overlapping portions of both slivers are gripped, and a new sliver is cut. Next, the sliver piecing unit is activated to perform sliver splicing.

Further, not only a sliver gripping device configured to grip a sliver with a fixed gripping piece and a movable gripping piece, but also a sliver gripping device including a cylindrical holding portion having a suction port and a movable gripping piece is disclosed. Has been done. However, the suction action of the sliver gripping device plays a role of arranging the sliver at a predetermined position of the holding portion when gripping the sliver. Then, after cutting the sliver, the suction action is stopped, the movable gripping piece is opened above the empty can and the sliver cutting end is discarded. That is, in the conventional sliver splicing method, a series of sliver splicing work is performed in a state where the spare can that is newly supplied to the spinning machine is placed adjacent to the can of the sliver (working sliver) being spun. . Then, the sliver gripping device is adapted to discard the cut end of the sliver gripped by the sliver piecing unit into an empty can.

[0004]

In the above-mentioned sliver gripping device, it is indispensable to throw away the cut end of the sliver cut after cutting into an empty can, so that the work time becomes longer and the control becomes complicated.

Further, the sliver splicing work is performed while the spinning machine stand is not operating. In general, the sliver can is enlarged in order to lengthen the cycle of sliver splicing work and improve the operating efficiency of the spinning machine stand. As a result, the sliver cans being spun in the roving machine cannot be arranged in one row in a state corresponding to each weight, but are arranged in a plurality of rows behind the roving machine stand.

However, if the conventional sliver splicing method is adopted when the sliver cans being spun are arranged in a plurality of rows, the spare cans row also requires a plurality of rows corresponding to the sliver cans row being spun. As a result, not only the machine base installation area becomes large, but also the sliver spun from the cans arranged in the last row is fed to the roving machine over a long distance, which may cause an illegal draft on the way. . In order to solve this inconvenience, the inventors of the present application cut the sliver being spun that is close to the sky, replace the sliver cans row with a full sliver cans row, and connect the sliver after cutting and the full sliver sliver to a new one. Invented a new sliver splicing method. In this sliver joining method, when a sliver having a full sliver can is introduced into the sliver piecing unit, since there is no empty can, a recovery container for the cut end of the sliver is newly required.

The present invention has been made in view of the above problems, and an object thereof is to eliminate the operation of discarding the cut end of the sliver when the sliver splicing work is performed by an automatic machine.
The time for sliver splicing work can be shortened, the control of the drive arm that moves the sliver gripping device is simplified, and the sliver splicing work is performed without preparing a collection container at the cut end of the sliver even when there is no spare can row. It is an object of the present invention to provide a sliver gripping / processing device of a sliver splicing machine that can perform the above.

[0008]

In order to achieve the above object, in the invention according to claim 1, a sliver piecing unit, a sliver gripping device, a sliver during spinning of the sliver gripping device, and a new supply should be provided. In a movable sliver splicer having an arm for moving a sliver gripping position and an operating position for guiding the gripped sliver to an introduction part of the sliver piecing unit, the sliver gripping device has a suction port having a suction port. A pipe, a movable gripping member capable of gripping and releasing the sliver sucked by the suction port, and a drive device for driving the movable gripping member. A negative pressure source, which is sometimes kept at negative pressure, is connected in a communicating state via a communicating member.

According to the second aspect of the present invention, the sliver piecing unit, the sliver gripping device, the position where the sliver being spun by the sliver gripping device and the sliver to be newly supplied can be gripped, and the sliver gripped. In a movable sliver splicer having an arm for moving the sliver piecing unit to an operating position for guiding the sliver piecing unit, a suction duct is extended along the movement path of the sliver splicer, and the sliver duct is installed in the suction duct. A belt that forms an opening extending along the movement path of the splicer and is movable while closing the opening is provided, and the belt is provided with a connecting portion that communicates with the inside of the suction duct.
In the sliver splicer, a connecting position at which one end can be moved to a connecting position where it can be connected to the connecting part of the belt and a retracted position separated from the connecting part, and the connecting pipe is moved to the connecting position and the retracted position. A suction pipe having a suction port for the sliver gripping device, a movable gripping member capable of gripping and releasing the sliver sucked by the suction port, and a drive device for driving the movable gripping member. The suction pipe is connected to the connecting pipe in a communicating state via a communicating member.

Further, in the invention according to claim 3, the driving means is provided with a biasing means for biasing the connecting pipe toward the connecting position, and integrally movable with the connecting pipe.
A cam follower that engages with a cam disposed on the suction duct side is provided.

[0011]

In the invention described in claim 1, the sliver splicing machine stops at a position where sliver splicing is required, and the sliver splicing work is performed at the position. During the sliver connecting work, the negative pressure of the negative pressure source acts on the suction pipe via the communication member. In the sliver gripping device, the movable gripping member is arranged at the gripping position and grips the sliver with a part of the sliver to be gripped being sucked into the suction pipe from the suction port of the suction pipe. The sliver gripped by the sliver gripping device is guided to the introduction part of the sliver piecing unit, the sliver is cut between the sliver piecing unit and the sliver gripping device, and then the movable gripping member is arranged at the release position. Then, the cut end of the sliver is sucked into the suction pipe through the suction port, and is collected by the negative pressure source through the communication member.

[0012] In the sliver splicer according to the second aspect of the present invention, the connecting pipe is connected to the connecting portion of the belt,
Move to the position where sliver splicing work is performed. The connecting pipe is arranged at a connecting position where it can be connected to the connecting portion and a retracted position separated from the connecting portion by the action of the driving means. When the sliver joint moves while the connecting pipe is connected to the connecting portion of the belt, the belt moves together with the sliver joint while closing the opening formed in the suction duct. Negative pressure acts on the suction pipe of the sliver gripping device from the suction duct through the connecting pipe. Since the connecting pipe can be attached to and detached from the connecting portion of the belt, one sliver splicing machine can be shared by many spinning machine stands.

According to the third aspect of the present invention, the connecting pipe is urged by the urging means toward the connecting position side where the connecting pipe can be connected to the connecting portion of the belt. The cam follower engages with the cam while the sliver splicer moves to the position corresponding to the belt, and the connecting pipe moves to the retracted position side together with the cam follower. And, until the connecting pipe is moved to a position corresponding to the connecting portion of the belt, it is held at a position separated from the belt, and when the connecting pipe is placed at a position corresponding to the connecting portion, the connecting pipe is connected to the connecting portion. Become. After that, the cam follower is released from the engagement with the cam, and the connecting pipe is connected to the connecting portion and held in the state. Then, the sliver joining work is performed in this state. After the sliver splicing work is completed, when the sliver splicing machine moves again to the position where the cam follower faces the cam, the coupling state between the coupling pipe and the coupling portion is released.

[0014]

【Example】

(Embodiment 1) Hereinafter, a first embodiment embodying the present invention will be described with reference to FIG.
~ It demonstrates according to FIG. As shown in FIG.
The cans 2 for supplying the sliver S to the roving machine 1 are arranged in parallel in a plurality of rows behind the. A creel 3 is installed behind the roving frame 1 so as to extend in a direction orthogonal to the longitudinal direction of the roving frame 1 (direction orthogonal to the paper surface of FIG. 2), and the feed roller 4 extends along the longitudinal direction of the roving frame 1. It is supported by the creel 3 in an extended state. A support rod 5 is provided near the lower part of the feed roller 4 in parallel with the feed roller 4. At the rising position of the sliver S from the can 2, a separator 6 that regulates the position of the sliver S
Are supported by the support rod 5.

A traveling rail 7 is attached to the can 2 on the creel 3.
Is supported via a bracket 8 so as to extend along the longitudinal direction of the roving machine 1 above the row. A sliver splicer 9 is movably supported on the traveling rail 7. As shown in FIGS. 1 and 2, the sliver splicing machine 9 has a box-shaped housing 10 and a traveling rail 7 via a bracket 12 equipped with a drive roller 11a and a driven roller 11b.
Is supported in a suspended state. Drive roller 11a
Is driven by a motor (not shown), and the sliver joint 9 is moved along the traveling rail 7 by the forward and reverse rotations of the motor. Further, the sliver splicing machine 9 is provided with a positioning means (not shown) which can be engaged with a positioning member (not shown) provided on the traveling rail 7, so that it can be stopped at a predetermined sliver splicing position. There is.

A sliver introducing portion 13 extending in the vertical direction is provided on the front surface of the housing 10, and a sliver piecing unit 14 is provided in the housing 10 at a position corresponding to the sliver introducing portion 13. As shown in FIGS. 3 and 4, the sliver piecing unit 14 includes a large number of separate plates 15 arranged in parallel at a predetermined interval, and a large number of needles 16 a vertically arranged on the needle plate 1.
6 and. The needle plate 16 is supported by a pair of guide rods 17 arranged so as to extend horizontally in a state orthogonal to the moving direction of the sliver splicer 9.
Is supported through. A cam lever 19 is swingably supported to the side of the support block 18, and the support block 1
Reference numeral 8 is connected to the cam lever 19 via a pin 20 which is inserted into a long hole (not shown) formed in the first end of the cam lever 19. The cam lever 19 is held in a state in which the cam follower 19a mounted on the second end of the cam lever 19 contacts the cam 21. The cam 21 is provided between the large diameter portion 21a which is continuous over a range of approximately 1/3 of the entire circumference, the small diameter portion 21b which is continuous over a range of approximately 1/3, and between the large diameter portion 21a and the small diameter portion 21b. It is formed in a shape having a plurality of (two in this embodiment) protrusions 21c. When the cam 21 is rotationally driven by the action of a motor (not shown), the cam lever 19 swings. Then, with the cam follower 19a engaged with the small diameter portion 21b, the needle plate 16 is arranged at the standby position in which the needle 16a is retracted from between the separate plates 15. Further, the needle plate 16 is arranged at a working position where the needle 16a enters between the separate plates 15 in a state where the cam follower 19a is engaged with the large diameter portion 21a or the projection 21c.

A sliver intake lever 22 for a new sliver is provided below the sliver introducing portion 13 in the housing 10.
On the upper side, sliver intake levers 23 for the old sliver are rotatably equipped. Further, a large number of sliver pressers 24 are integrally rotatable at positions corresponding to the sliver introducing portion 13. The sliver take-in lever 22, the sliver take-in lever 23, and the sliver presser 24 are rotatably arranged between a standby position and an action position by the action of a drive device (not shown).

A cotton collecting box 25 as a negative pressure source is provided on one side of the housing 10, and the inside of the cotton collecting box 25 becomes negative pressure by the action of the blower 26. The first arm 27 is provided on the side of the housing 10 opposite to the position where the cotton collection box 25 is arranged.
biaxial drive arm 27 including a and the second arm 27b
Is provided. The first arm 27a is configured to swing around its base end by a driving device (not shown). The second arm 27b is rotatably supported by the tip of the first arm 27a, and is swung by a motor 28 provided at the base end of the first arm 27a via a drive mechanism (not shown).

As shown in FIG. 5, the second arm 27b is formed hollow, and the sliver gripping device 29 is attached to the tip thereof. A support cylinder 31 as a suction pipe constituting the sliver gripping device 29 is fixedly supported by the second arm 27b at the base end in a state of being orthogonal to the second arm 27b. A suction pipe 30 as a movable gripping member is rotatably loosely fitted on the outer side of the support cylinder 31. Suction pipe 3
In the case of 0, its tip is formed to have a length corresponding to the sliver introducing portion 13, the tip is closed, and a suction port 30a is formed near the tip. The support cylinder 31 has a suction port 30
A through hole 31a as a suction port corresponding to a is formed. The suction pipe 30 is provided on the outer periphery of the suction pipe 30 near the base end.
The connecting piece 30b is provided so as to be orthogonal to the longitudinal direction of the. A rotary actuator (rotary solenoid) 32 is fixed to the base end of the support cylinder 31, and a lever 33 and a connecting piece 30b fixed to the drive shaft of the rotary actuator 32 are connected to the connecting rod 3.
It is connected via 4 so as to be integrally rotatable. Then, the suction pipe 30 is driven by the rotary actuator 32 so that the suction port 30a is in an open position where it faces the through hole 31a.
The suction port 30a is rotatable to a closed position where it does not face the through hole 31a.

The pipe 3 is provided near the base end of the first arm 27a.
5 is fixed in parallel with the suction pipe 30. Pipe 3
The first end of 5 is connected to the cotton collection box 25 via a hose 36. The second end of the pipe 35 has a bellows hose 3
It is connected to the second arm 27b via 7. That is, the suction pipe 30 is in communication with the cotton collection box 25 via the second arm 27b, the bellows hose 37, the pipe 35, and the hose 36. The second arm 27b, the bellows hose 37, the pipe 35, and the hose 36 constitute a communication member that connects the suction pipe 30 and the cotton collection box 25 in a communication state.

The housing 10 is equipped with a control box (not shown) for transmitting and receiving signals to and from a control device (not shown) and for controlling the blower 26, the motor 28, the rotary actuator 32 and other motors. Has been done.

Next, the operation of the apparatus configured as described above will be described with reference to FIGS. In this embodiment, prior to the sliver splicing work by the sliver splicing machine 9,
Cutting work of gimmick sliver and exchange work of empty can and full sliver can are performed. The sliver cutting work is performed manually or by a sliver cutting device that moves along a traveling rail. The sliver S after cutting is in a state of hanging from the feed roller 4, and a full sliver can is arranged below it. Further, in FIGS. 6 to 15, the separator 6, the traveling rail 7, the driving roller 11a, and the driven roller 1 are shown.
Illustrations such as 1b are omitted.

When the sliver splicing machine 9 stands by at a predetermined standby position and receives a sliver splicing work command signal from the control device, it moves on the traveling rail 7 to a position corresponding to the can 2 requiring work according to the command. Stop. The blower 26 is driven before the sliver splicer 9 stops at a predetermined position. When the sliver splicing machine 9 is stopped at a predetermined position, the sliver introducing part 13 moves the feed roller 4 as shown in FIG.
The state corresponds to the sliver S hanging from the. From this state, the sliver intake lever 23 is actuated, and
The sliver S is introduced into the sliver introducing section 13 as shown in FIG.

On the other hand, the sliver gripping device 29 is arranged at a position where the suction port 30a faces the sliver S hanging below the sliver intake lever 23 by the operation of the drive arm 27. Before the suction port 30a is arranged at the position corresponding to the sliver S, the rotary actuator 32
Is operated, and the suction pipe 30 is arranged at a position where the suction port 30a is opened. After the suction port 30a is arranged at the position corresponding to the sliver S, the suction pipe 30 is arranged at the closed position. As a result, the sliver S is in a state shown in FIG. 8 in which the sliver S is gripped by the sliver gripping device 29 in a state where a part thereof is sucked by the suction pipe 30. The sliver S hanging down below the sliver holding lever 23 is suctioned and gripped by the sliver gripping device 29 to bring the sliver S close to the sliver introducing section 13 side, and then the sliver take-in lever 23
May be operated to introduce the sliver S into the sliver introducing section 13.

Next, the drive arm 27 is driven so that the sliver gripping device 29 moves downward, and the sliver S is cut between the sliver take-in lever 23 and the sliver gripping device 29. At the same time, the sliver presser 24 is driven to push the sliver into the needle 16a shown in FIG. 3 and prevent the sliver from coming off from the sliver introducing portion 13. Next, the suction pipe 30 is placed in the open position, and the sliver gripping device 29
The cut end of the sliver that has been gripped by is sucked into the suction pipe 30 (state of FIG. 9). The cutting end of the sliver is sucked by the cotton collection box 25, so that the second arm 27
b, the bellows hose 37, the pipe 35, and the hose 36, and is collected in the cotton collection box 25. In addition, before the sliver presser 24 is operated, the sliver piecing unit 14 is
The cam 21 is rotated to a position where the large diameter portion 21a engages with the cam follower 19a, and the needle 16a is held in a state of having entered the needle plate 16.

Next, the drive arm 27 is driven to move the sliver gripping device 29 to a position where the suction port 30a corresponds to the sliver end of the full can 2a, as shown in FIG. Since the sliver end of the full can 2a is arranged so as to hang down from its upper portion, the sliver end is sucked into the suction port 30a. After that, the suction pipe 30 is arranged at the closed position, and the end portion of the sliver is gripped by the suction pipe 30 and the support cylinder 31. Then, the drive arm 27 is driven, the sliver gripping device 29 is moved upward, and
As shown in FIG. 1, the sliver gripping device 29 lifts the sliver S in the full can 2a.

Next, the sliver holder 24 is rotated to the release position. Further, from this state, the sliver gripping device 29 is further moved upward, and as shown in FIG. 12, the drive arm 27 stops when the sliver gripping device 29 is placed at a predetermined position above the sliver take-in lever 23. Next, the sliver take-in lever 22 is rotated to the gripping position, and the sliver S continuing from the sliver gripping device 29 to the full sliver can 2a is introduced into the sliver introducing part 13. Next, the drive arm 27 is driven to move the sliver gripping device 29 upward, and the sliver S gripped by the sliver gripping device 29 is cut between the sliver take-in lever 22 and the sliver gripping device 29. Sliver press 2 at the same time
4 is driven to push the sliver into the needle 16a shown in FIG. 3 and prevent the sliver from falling out of the sliver introducing portion 13. In this way, the end portion of the sliver S newly supplied from the full sliver can 2a overlaps with the end portion of the sliver S that was previously cut. Further, the suction pipe 30 is arranged at the open position, and the sliver cutting end held by the sliver gripping device 29 is sucked into the suction pipe 30 and collected in the cotton collecting box 25.

Next, the sliver piecing unit 14 is operated in the state shown in FIG. 14, and the needle plate 16 reciprocates a plurality of times (twice in this embodiment). The needle 16a moves into the separate plate 15 by the forward movement of the needle plate 16 and pierces the overlapped portion of the sliver S held by the separate plate 15 and the sliver holder 24. Needle plate 1
Needle 16 stuck into the sliver S by the return movement of 6
a is pulled out. As a result, the fibers of the sliver S in the overlapped state are entangled with each other and the sliver S is joined to each other.

After the joining work of the sliver S by the sliver piecing unit 14 is completed, the sliver take-in lever 2
2, sliver intake lever 23 and sliver holder 2
When 4 is rotated to the release position, the sliver S is released from the sliver introducing portion 13 and enters the state shown in FIG. After that, the sliver splicing machine 9 moves to the next work position, and the sliver splicing work is performed as described above.

As described above, the end portion of the sliver protruding from the sliver introducing portion 13 is cut by the sliver gripping device 29 and the sliver intake lever 22 or the sliver intake lever 23 while being held by the sliver gripping device 29. . The sliver cutting end is the suction pipe 3
When 0 is placed in the open position, it is sucked by the suction pipe 30 by the suction action of the cotton collection box and collected in the cotton collection box 25. Therefore, unlike the conventional device, the operation of discarding the sliver cutting end in the empty can is not necessary, the work time is shortened by that much, and the control of the drive arm 27 is simplified. Further, in the case where the sliver splicing work is performed after the empty can 2 and the full can 2a are exchanged as in this embodiment, the container for discarding the sliver cutting end is filled with the full can 2.
There is no need to prepare near a.

(Second Embodiment) Next, a second embodiment will be described with reference to FIGS. In this embodiment, the sliver splicing machine 9 is not equipped with a negative pressure source, and the traveling rail of the sliver splicing machine 9 constitutes a negative pressure source, which is a great difference from the above-described embodiments.

As shown in FIG. 16, a plurality of suction ducts 38 constituting a negative pressure source are provided behind the roving frame 1 so as to extend in parallel with the roving frame 1 below the creel 3 in correspondence with the can row. It is installed. Suction duct 3
8 also functions as a traveling rail. As shown in FIG. 17, the suction duct 38 has support portions 38a for supporting the driving roller 11a and the driven roller 11b of the sliver splicing machine 9 protruding from the left and right sides of a rectangular tubular body whose lower side is opened over its entire length. There is. Guide grooves 39a are formed on both sides of the opening 39. Also, suction duct 3
On the upper surface of 8, a guide recess 40 having two steps is formed.

As shown in FIG. 20 and the like, the support portion 38a is formed so as to extend longer than the tubular portion on the first end side of the suction duct 38. Pulleys 41 a and 41 b are rotatably supported at both ends of the tubular portion of the suction duct 38 via a bracket 42 and a tension device 43. The bracket 42 is the suction duct 3
It is fixed to the suction duct 38 in a state where both ends of 8 are closed. The support portion 38a is formed to extend longer than the tubular portion on the first end side of the suction duct 38. The belt 44 is wound around the pulleys 41a and 41b so as to be movable along the guide groove 39a and the guide recess 40 while covering the opening 39. The belt 44 is a pair of upper and lower joint plates 45.
A and 45b are joined and fixed in a state where both ends thereof are clamped to form an endless shape. The belt 44 and the joint plates 45a and 45b have a circular connecting hole 4 as a connecting portion for connecting the inside of the suction duct 38 to the outside.
6 is formed. The belt 44 is made of ultra-high molecular weight polyethylene having low friction and excellent wear resistance.

As shown in FIG. 17, in the sliver splicing machine 9, the driving roller 11a and the driven roller 11b have a supporting portion 38a.
Is supported in a suspended state with respect to the suction duct 38 in a rollable state. Opening 3 in housing 10
A pair of guide rods 47 is fixed at a position corresponding to 9 so as to extend parallel to the vertical direction. A joint block 48 is fixed between both guide rods 47 via a bracket 49. The joint block 48 is formed with a passage having a circular cross section that is open upward and sideways, and a support pipe 50 is erected in a state of being fitted in the upper opening. A first end of the hose 51 is connected to the side opening, and a second end (not shown) of the hose 51 is connected to the pipe 35.
Is connected to the first end of the.

The support block 5 is provided on the support pipe 50.
2 is slidably equipped. The support block 52 is also slidably supported on the guide rod 47.
A connection pipe 53 that can be fitted into the connection hole 46 is fixed to the upper portion of the support block 52. A bracket 54 having a U-shaped plane is fixed to the side surface of the support block 52, and a support plate 55 is fixed to the bracket 54 in a state of extending in the vertical direction. A cam follower 56 is rotatably supported on the support plate 55. The support block 52 is biased upward by a coil spring 57 wound around the suction duct 38, and is always connected to the connecting pipe 53.
Has an upper end higher than the lower end of the connecting hole 46 and has a supporting portion 38a.
Is arranged at a position (connecting position) lower than the upper surface of the. When the connecting pipe 53 is arranged at the connecting position so as to face the communicating hole 46, the connecting pipe 53 is fitted into the communicating hole 46.

As shown in FIG. 20 and the like, a cam 58 engageable with the cam follower 56 is fixed to the side surface of the support portion 38a at the first end portion of the suction duct 38. As for the shape of the cam 58, the sliver splicing machine 9 has the suction duct 3
The cam follower 56 is formed to reciprocate up and down when passing near the first end portion of No. 8. That is,
The cam surface of the cam 58 is formed such that the descending inclined portion, the horizontal portion, and the ascending inclined portion are continuous. Cam follower 5
The reciprocating distance of 6 is such that the connecting pipe 53 can be attached to and detached from the communication hole 46. The guide rod 47, the support block 52, the coil spring 57, the cam follower 56, and the cam 58 constitute drive means for moving the connecting pipe 53 between the connecting position and the retracted position.

As shown in FIG. 16, the suction duct 3
A joint duct 59 is arranged above the first end portion of 8 so as to be orthogonal to the suction duct 38. The joint duct 59 is connected to a pneumatic box 60 provided at the machine base end of the roving frame 1. Further, the joint duct 59 is connected to each suction duct 38 via a connecting pipe (not shown) in a communicating state, and each connecting pipe switches the joint duct 59 and the suction duct 38 between a communicating state and a blocking state. (Not shown). The suction duct 38, the joint duct 59, and the pneumatic box 60 constitute a negative pressure source.

As shown in FIG. 16, the suction duct 3
A rail 61 is laid in a direction orthogonal to the suction duct 38 on the floor surface on the side corresponding to the first end portion of No. 8.
A carrier 62 is movably arranged on the rail 61. The carrier 62 is configured so that the sliver splicing machine 9 can be mounted, and moves the sliver splicing machine 9 to a position corresponding to the suction duct 38 corresponding to the can row requiring the sliver splicing operation. The carrier 62 includes a pair of bridge rails 63 that can be connected to both the support portions 38a of the suction duct 38, and the sliver splicer 9 has a bridge rail 63.
Through the suction duct 38.

Next, the operation of the apparatus configured as described above will be described. The sliver splicing machine 9 stands by in a state of being mounted on the carrier 62, starts moving when it receives a sliver splicing operation command signal from the control device, and moves to the suction duct 38 through the bridge rail 63. In addition, prior to the movement of the sliver splicer 9, the suction duct 38
The valve corresponding to is switched to a state in which the joint duct 59 and the suction duct 38 are communicated with each other.

When the sliver joint 9 moves on the bridge rails 63, the cam followers 56 are in a free state, and the connecting pipe 53 is held in a state of protruding between the bridge rails 63 as shown in FIG. That is, in this state, the connection pipe 53 is arranged at a connection position higher than the lower surface of the belt 44. The cam followers 56 engage the cams 58 as the sliver splicer 9 passes through the first end of the suction duct 38. Cam follower 56 is cam 5
When the sliver splicer 9 moves to the second end side of the suction duct 38 from the state in which the engagement with 8 is started (the state in FIG. 20), the cam follower 56 resists the biasing force of the coil spring 57 and the support block 52. It is pushed down. Then, before the connecting pipe 53 passes through the position facing the tension device 43, the upper end of the connecting pipe 53 is arranged at a position lower than the belt 44 (retracted position). Therefore, the sliver splicer 9 can move without the connecting pipe 53 interfering with the tension device 43 and the belt 44.

Then, as shown in FIG. 22, after the sliver splicing machine 9 has moved for a predetermined distance in a state where the cam follower 56 is arranged at a position where the cam follower 56 engages with the horizontal cam surface (withdrawal position),
The cam follower 56 is brought into a state corresponding to the ascending cam surface. As a result, the support block 52 is moved upward by the biasing force of the coil spring 57, and the connecting pipe 53 is also moved upward along the suction duct 38. During the movement, the connecting pipe 53 is inserted into the connecting holes 46 of the joint plates 45a and 45b arranged at predetermined positions, and then the belt 44 moves integrally with the sliver splicer 9 via the connecting pipe 53. And FIG.
As shown in FIG. 4, when the engagement between the cam follower 56 and the cam 58 ends, the connection between the connection pipe 53 and the connection hole 46 is completed.

By connecting the connection pipe 53 and the connection hole 46, the negative pressure of the suction duct 38 is applied to the connection pipe 53, the support pipe 50, the support block 52 and the hose 5.
Act on 1. Then, the suction pipe 3 is passed from the hose 51 through the pipe 35, the bellows hose 37, and the second arm 27b.
Acts on zero.

After the connection between the connection pipe 53 and the connection hole 46 is completed, the sliver splicer 9 moves to the second end of the suction duct 38. Then, the sliver splicing work is performed in the same manner as in the above-described embodiment by intermittently moving from the second end portion side toward the first end portion side and sequentially stopping at the sliver splicing work position. The connecting pipe 53 is held in the connecting position while the sliver splicer 9 moves along the suction duct 38. After all the sliver splicing work of each full can 2a is completed, the cam follower 56 is in a state of engaging with the cam 58 again while the sliver splicing machine 9 is moving toward the carrier 62. When the sliver joint machine 9 continues to move in this state, the cam follower 56 is moved downward. Then, when the joint plates 45a and 45b reach a predetermined position, the connection pipe 53 is arranged at the cut-off position (retracted position) where the connection with the connection hole 46 is released. After that, the sliver joint machine 9 returns to the carrier 62 through the bridge rail 63. Then, the carrier 62 carries the sliver splicing machine 9 and moves to a position corresponding to the suction duct 38 corresponding to another can row requiring the sliver splicing operation.

The sliver splicer 9 is connected to the suction duct 38.
When moving along, the portion of the belt 44 corresponding to the opening 39 receives an upward biasing force due to the negative pressure of the suction duct 38. Therefore, the belt 44 slides while being pressed against the guide groove 39a. But belt 4
Since the ultra high molecular weight polyethylene is used as the material of No. 4, the durability of the belt 44 is good.

In the construction of this embodiment, the sliver splicing machine 9 is replaced with the cotton collection box 25 and the blower 26, and a connecting pipe 53 and a device for moving the connecting pipe 53 up and down are provided. Can be connected to. Since the connecting pipe 53 and its lifting device can be easily downsized as compared with the cotton collection box 25 and the blower 26, the entire sliver splicing machine 9 can be easily downsized.

Further, in the structure of this embodiment, the connecting pipe 53
In the drive unit that moves the to the connection position and the retracted position, the movement timing and the movement range are set using the cam mechanism. Since the cam surface is formed along the moving path of the sliver splicer 9, the sliver splicer 9 can be connected and disconnected between the connection pipe 53 and the connection hole 46 while moving. Further, in the configuration of this embodiment, the belt 44 is moved by the sliver splicing machine 9 and the sliver splicing machine 9 returns to its original position, so that it is not necessary to separately provide a drive source for driving the belt 44.

The present invention is not limited to the above-described embodiment. For example, in the sliver splicing work, instead of first introducing the end portion of the gimmick sliver into the sliver introducing portion 13, the sliver of the full cans 2a is replaced. The end may be introduced into the sliver introducing part 13 first. Further, the sliver splicing machine 9 may be equipped with a sliver cutting device.

The sliver splicing work may be performed in a state where the empty can row and the full can row are arranged in parallel. In this case as well, the sliver gripping device 29 does not need the operation of discarding the sliver cutting end into an empty can, the sliver joining work becomes short and the control of the drive arm 27 becomes simple.

Further, the suction pipe 30 is fixedly supported by the second arm so that the pipe as the movable gripping member is rotatable inside the suction pipe 30, or the movable gripping member is not cylindrical but has an arcuate cross section. It may be used as a plate. Also, the second arm 2
The support cylinder 31 and the hose 36 may be connected via the bellows hose 37 without the intervening 7b.

Further, in the second embodiment, a cylinder, a motor or the like may be used instead of the cam mechanism as the driving means for moving the connecting pipe 53 between the connecting position and the retracted position.
In this case, it is necessary to connect and disconnect the connecting pipe 53 and the connecting hole 46 while the sliver splicer 9 is stopped, and a means such as a sensor for stopping at a predetermined position is required.

Further, instead of moving the sliver splicing machine 9 to the suction duct 38 corresponding to another can row via the carrier 62, a rail for connecting the ends of the support portions 38a of the different suction ducts 38 is used. You may arrange. In this case, the sliver joint machine 9 moves on the rail and moves to another suction duct 38. Further, the sliver splicing machine 9 does not necessarily have to reciprocate on the suction duct 38 to perform the sliver splicing work. That is, the suction duct 38 enters from the first end side and moves to the other suction duct 38 from the second end side, or conversely, the suction duct 38 enters from the second end side to the first end part. You may move to the other suction duct 38 from the side. In this case, it is necessary to provide the cams 58 at predetermined positions on both ends of the suction duct 38. Further, the suction ducts 38 may be connected by rails so that the moving path of the sliver splicing machine 9 may be a closed loop, and the sliver splicing machine 9 may move only in a predetermined direction of each suction duct 38 to perform the sliver splicing work. . In this case, it is necessary to provide a drive device for driving the belt 44, and drive the belt 44 in order to dispose the connecting hole 46 at a predetermined position on the entry side after the sliver splicer 9 exits from the suction duct 38. or,
A traveling rail may be provided separately from the suction duct 38.

Further, in the second embodiment, the sliver splicing machine 9 is used.
May be provided for each suction duct 38. In this case, the connecting pipe 53 does not have to be detachable from the connecting hole 46. Further, the spinning machine is not limited to the roving machine, and may be applied to other spinning machines using a sliver as a raw material such as a kneading machine.

[0053]

As described above in detail, according to the present invention, when the sliver splicing machine performs the sliver splicing work, the operation of discarding the cut end of the sliver is unnecessary, and the time of the sliver splicing work can be shortened. The control of the drive arm that moves the sliver gripping device is simplified. Further, even if there is no spare can row, the sliver splicing work can be performed without preparing a recovery container at the cut end of the sliver.

In addition to the above effects, in the invention described in claim 2, it is not necessary to equip the sliver splicer with a negative pressure source. Easy to make compact.

In addition to the above effects, the invention according to claim 3 can connect the negative pressure source and the suction pipe while the sliver splicer is moving.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a sliver splicing machine according to a first embodiment.

FIG. 2 is a schematic side view showing a relationship among a roving frame, a traveling rail, a sliver splicing machine, and the like.

FIG. 3 is a schematic plan view of a sliver piecing unit.

FIG. 4 is a schematic front view of a sliver piecing unit.

FIG. 5 is a sectional view of a sliver gripping device.

FIG. 6 is a partially omitted perspective view showing the operation of the sliver splicer.

FIG. 7 is a partially omitted perspective view showing the operation of the sliver splicer.

FIG. 8 is a partially omitted perspective view showing the operation of the sliver splicer.

FIG. 9 is a partially omitted perspective view showing the operation of the sliver splicer.

FIG. 10 is a partially omitted perspective view showing the operation of the sliver splicer.

FIG. 11 is a partially omitted perspective view showing the operation of the sliver splicer.

FIG. 12 is a partially omitted perspective view showing the operation of the sliver splicer.

FIG. 13 is a partially omitted perspective view showing the operation of the sliver splicer.

FIG. 14 is a partially omitted perspective view showing the operation of the sliver splicer.

FIG. 15 is a partially omitted perspective view showing the operation of the sliver splicer.

FIG. 16 is a schematic plan view showing a relationship among a roving frame, a suction duct, a can and the like according to a second embodiment.

FIG. 17 is a cross-sectional view showing the relationship between the suction duct and the sliver splicer.

FIG. 18 is a partial cross-sectional view showing the relationship between the cam and the cam follower.

FIG. 19 is a partial plan view showing a connected state of the belt and the joint plate.

FIG. 20 is a partially omitted front sectional view for explaining the action of the connecting pipe.

FIG. 21 is a partially omitted side sectional view for explaining the action of the connecting pipe.

FIG. 22 is a partially omitted front sectional view for explaining the action of the connecting pipe.

FIG. 23 is a partially omitted side sectional view for explaining the action of the connecting pipe.

FIG. 24 is a partially omitted front sectional view for explaining the action of the connecting pipe.

FIG. 25 is a partially omitted side sectional view for explaining the action of the connecting pipe.

[Explanation of symbols]

1 ... Rover, 2 ... Can, 9 ... Sliver splicer, 13 ...
Sliver introduction part, 14 ... Sliver piecing unit,
25 ... Cotton collection box as negative pressure source, 27 ... Drive arm, 29 ... Sliver gripping device, 30 ... Suction pipe as movable gripping member, 30a ... Suction port, 31 ... Support tube as suction pipe, 31a ... Suction port , 32 ... rotary actuator as drive device, 35 ... pipe as communication member, 36 ... similarly hose, 37 ... similarly bellows hose, 38 ... suction duct which constitutes a negative pressure source,
Reference numeral 39 ... Opening portion, 44 ... Belt, 45a, 45b ... Joint plate, 46 ... Connection hole as connecting portion, 53 ... Connection pipe, 56 ... Cam follower constituting drive means, 5
8 ... also a cam, 59 ... a joint duct constituting a negative pressure source, 60 ... also a pneumatic box.

Claims (3)

[Claims] 1. A sliver piecing unit, a sliver gripping device, a position at which a sliver during spinning of the sliver gripping device and a sliver to be newly supplied can be gripped, and the gripped sliver is used as an introduction part of the sliver piecing unit. In a movable sliver splicer having an arm that moves the sliver gripping device to a working position to guide, and a suction pipe having a suction port,
The suction pipe is composed of a movable gripping member capable of gripping and releasing the sliver in a state of being sucked into the suction port, and a drive device for driving the movable gripping member. A sliver gripping / processing device for a sliver splicer connected in a communicating state with a negative pressure source held by a communicating member. 2. A sliver piecing unit, a sliver gripping device, a position at which the sliver during spinning of the sliver gripping device and a sliver to be newly supplied can be gripped, and the gripped sliver is introduced to the sliver piecing unit. In a movable sliver splicer having a guiding position and an arm for moving the sliver splicer, a suction duct is extended along the movement path of the sliver splice, and the suction duct extends along the movement path of the sliver splice. A belt that forms an opening and is movable while closing the opening is provided, a connecting portion that communicates with the inside of the suction duct is provided on the belt, and the sliver splicer can be connected to the connecting portion of the belt. A connecting pipe, one end of which is movable to a connecting position and a retracted position separated from the connecting portion, and the connecting pipe is connected to the connecting position. And driving means for moving to the retracted position provided, a suction pipe having a suction port of the sliver gripper device,
It is composed of a movable gripping member capable of gripping and releasing the sliver sucked by the suction port, and a drive device for driving the movable gripping member, and the suction pipe is in communication with the connection pipe through a communication member. The sliver gripping and processing device of the sliver splicer connected by. 3. The drive means is provided with an urging means for urging the connecting pipe toward the connecting position side, a cam integrally provided with the connecting pipe, and a cam arranged on the suction duct side. The sliver gripping / processing device of the sliver splicing machine according to claim 2, further comprising a cam follower.