JPH06299424A - Silver-ending machine of spinning frame and silver-ending method - Google Patents

Abstract

PURPOSE:To shorten the cycle time of a sliver-ending operation of a sliver- ending machine. CONSTITUTION:A new sliver is joined to an old sliver by stopping a sliver- ending machine 9 at a working position corresponding to the ends of the old sliver dangling from a feed roller and the new sliver of a full sliver can. The sliver-ending machine 9 is provided with an arm 18 composed of two shafts rotatable in a plane perpendicular to the length of a traversing rail 7 and a sliver-clamping apparatus 20 is fixed at the tip end of the arm 18. A sliver- retracting arm 29 is placed under the sliver introducing part 13 in a state rotatable between a waiting position and a working position shown by the two-dot chain line. The new sliver introduced into the sliver introducing part 13 and dangling under the introducing part (the direction on this side perpendicular to the plane of the figure) is retracted by the action of the sliver retracting arm 29 to a position unable to engage with the sliver clamping apparatus 20 returning to the original position. The returning operation of the arm 18 to the original position is carried out simultaneously with the other operations performed by the sliver-ending machine 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliver splicing machine and a sliver splicing method for automatically performing a sliver splicing operation on 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 in order to save labor and improve productivity.
It has also been proposed to automate the sliver splicing work on a spinning machine such as a drawing machine (for example, Japanese Patent Laid-Open No. 2-91233). Japanese Unexamined Patent Publication (Kokai) No. 2-91233 proposes a sliver splicing machine that performs a sliver splicing operation while the sliver extends in the vertical direction. In this method, as shown in FIG. 12, a can 42 that accommodates the sliver S that is being spun behind the roving machine 41, and a spare full sliver can 43 that accommodates the sliver (new sliver) S1 to be newly supplied. Are arranged in a plurality of rows along the longitudinal direction of the roving machine 41 (direction perpendicular to the paper surface of FIG. 12). One feed roller 44 is arranged in the row of cans 42 and the row of full sliver cans 43 along the longitudinal direction of the roving machine 41, and a guide 45 is provided at a position corresponding to the boundary between the two cans 42, 43. Has been done. The sliver S is supplied from each can 42 to the roving frame 41 through a guide 45 and a feed roller 44. The sliver splicing machine 46 moves along a can row on a traveling rail 47 installed below the feed roller 44, stops at a position corresponding to each guide 45, and performs a sliver splicing operation on each can 42, 43. I do.

As shown in FIG. 13, the sliver splicing machine 46 is used.
Is equipped with a sliver piecing unit 48 on its front surface (left side surface in FIG. 13). Also, the sliver splicer 4
An arm 49 equipped with a sliver gripping device 49a at its tip is disposed at 6 so as to be rotatable in a plane orthogonal to the moving direction of the sliver splicing machine 46.

During the sliver splicing work, the sliver splicing machine 46 is stopped at a position where the sliver introducing portion 48a of the sliver piecing unit 48 corresponds to the sliver (old sliver) S to be spliced, and at the stop position, the sliver S is replaced with the old sliver S. Joining work with the sliver S1 is performed. First, the old sliver S
Is gripped by the sliver gripping device 49a and transferred to a position corresponding to the sliver introducing part 48a of the sliver piecing unit 48, and is held by the sliver introducing part 48a by the sliver intake arms 50 and 51.
Next, the sliver gripping device 49a grips the old sliver S below the sliver piecing unit 48 and moves downward to cut the old sliver S. Then, the sliver gripping device 49a grips the end of the new sliver S1 housed in the full sliver can 43, and the new sliver S
Sliver introduction section 4 so that 1 overlaps the terminal section of old sliver S held by sliver piecing unit 48.
8a. Next, the old sliver S and the new sliver S1
The sliver gripping device 49a moves in a direction away from the sliver piecing unit 48 in a state where the overlapping portion is gripped and the new sliver S1 is cut. Then, the sliver piecing unit 48 is operated while the old and new slivers S and S1 are held by the sliver presser 52, and the old and new slivers S and S1 are joined. After that, when the sliver take-in arms 50 and 51 and the sliver presser 52 are released, the new and old slivers S and S1 are in a vertically connected state as shown in FIG. After that, the sliver splicing machine 46 starts moving in the direction of arrow A in the figure so that the arm 49 does not engage with the sliver S, S1 joined thereto.

[0005]

As shown in the figure, when the can 42 which is supplying the sliver S to be replaced is arranged on the side of the slaver splicer 46, the sliver splicer 46 performs the next work. When moving to the position, the arm 49 engages the sliver S in the next working position. Therefore, it is necessary to move the arm 49 of the sliver splicer 46 to a position where it cannot engage with the sliver S at the next working position.

However, when the sliver splicing machine 46 completes the joining of the slivers S and S1, the sliver gripping device 49a faces the sliver introducing portion 48a with the joined sliver S and S1 sandwiched therebetween, as shown in FIG. Becomes If the arm 49 is moved from this state to a position where it cannot be engaged with the sliver, the sliver gripping device 49a may engage the sliver S, S1 after joining and cut the sliver S, S1 after joining. There is. Therefore, the movement operation of the arm 49 is performed after the sliver splicing machine 46 starts traveling and is temporarily stopped at a position where the sliver gripping device 49a cannot engage with the sliver S, S1 after joining. In this way, the movement of the arm 49 was stopped while the sliver splicing machine 46 was moving to the next working position, so that the arm 49 was moved.
The cycle time of the sliver splicing work has been lengthened by the time required for the moving operation. The time required for the movement operation of the arm 49 becomes a considerable time when accumulated for all the weights of the roving machine 41. Therefore, the sliver splicer 4
The work efficiency of No. 6 is significantly reduced and the roving machine 41
Was a cause of lowering the operating efficiency of.

The present invention has been made in view of the above problems, and an object thereof is to perform a sliver splicing operation for moving an arm to a work starting position performed by the sliver splicing machine until it reaches a next working position. It is an object of the present invention to provide a sliver splicing machine and a sliver splicing method in a spinning machine that can reduce the cycle time of the sliver splicing work by the sliver splicing machine by performing the sliver splicing work in parallel with the predetermined work performed by the machine.

[0008]

In order to solve the above problems, in the invention described in claim 1, the old sliver hanging from the feed roller and the end of the new sliver housed in the full sliver can are used as a sliver piecing unit. In a sliver splicing machine that has an arm to take in and joins the old and new slivers in a state of vertically extending by the sliver piecing unit, a standby position where the old and new sliver cannot be engaged, and a sliver that engages with the sliver to operate the sliver The sliver retracting means is disposed so as to be movable and arranged at an operating position where the sliver is retracted outside the movement path to the start position.

According to the second aspect of the present invention, the sliver piecing provided on the sliver splicing machine includes the old sliver hanging from the feed roller by the arm provided on the sliver splicing machine and the end of the new sliver accommodated in the full sliver can. In the sliver splicing method, which takes in the unit and joins the old sliver and the new sliver in a vertically extended state by the operation of the sliver piecing unit,
After loading the old and new sliver into the sliver piecing unit by the arm, the sliver existing on the movement path of the arm to the work start position is evacuated to the outside of the movement path by the sliver retraction means, and in that state the arm is moved to the work start position. I tried to move it back.

According to the third aspect of the present invention, the sliver piecing machine equipped with the old sliver hanging from the feed roller by the arm provided in the sliver splicer and the end of the new sliver housed in the full sliver can are provided in the sliver splicer. In the sliver splicing method, which takes in the unit and joins the old sliver and the new sliver in a vertically extended state by the operation of the sliver piecing unit,
The sliver splicer that has completed the sliver splicing work starts traveling toward the next work position, and the sliver splicer is running after the arm cannot engage with the sliver after splicing in the process of moving to the work start position. In addition, the arm is returned to the work starting position.

[0011]

According to the invention described in claim 1, the sliver retracting means is provided when the arm takes in the old sliver hanging from the feed roller and the end of the new sliver housed in the full sliver can into the sliver piecing unit. It is moved to the standby position. In this state, the arm can engage with the old and new sliver, and the old and new sliver are gripped by the arm and taken into the sliver piecing unit. After that, the sliver retracting means is moved to the operating position. As a result, the sliver existing on the movement path of the arm to the work start position is retracted outside the movement path of the arm. Therefore, the return operation of the arm to the work start position can be performed in parallel with the sliver joining work performed by the sliver splicing machine after the old sliver is taken in. Therefore, the cycle time of the sliver joining work is shortened.

According to the second aspect of the invention, the ends of the old sliver hanging from the feed roller and the new sliver housed in the full sliver can are taken into the sliver piecing unit by the arm. After that, when the sliver retracting means is operated, the sliver existing on the movement path of the arm to the work start position is retracted outside the movement path of the arm. Therefore, the arm is moved to the work start position without engaging with the sliver. The sliver piecing unit joins the old and new slivers at the same time as the movement of the arm to the work start position. Therefore, the returning operation of the arm to the work start position is performed in parallel with the sliver joining work performed by the sliver piecing unit after the new and old slivers are taken in. Therefore, the cycle time of the sliver joining work is shortened.

According to the third aspect of the present invention, the ends of the old sliver hanging from the feed roller and the new sliver housed in the full sliver can are taken into the sliver piecing unit by the arm, and the sliver piecing unit is actuated to move up and down. It is joined in the state of extending in the direction. After that, the movement of the sliver splicer is started toward the next work position, and the arm is returned to the work start position during the traveling of the sliver splicer after the arm is disengaged from the joined sliver. Therefore, the return operation of the arm to the work start position is performed in parallel with the traveling operation performed to move the sliver splicing machine to the next work position, so that the cycle time of the sliver splicing work is shortened.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment embodying the present invention will now be described with reference to FIGS.
It will be described with reference to FIG. As shown in FIG. 2, a creel 2 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 3 is a roving frame. 1 is supported by the creel 2 in a state of extending along the longitudinal direction. A support rod 4 is provided near the lower part of the feed roller 3 in parallel with the feed roller 3. At the rising position of the sliver S from the can 5, a support rod 4 supports a separator 6 that regulates the position of the sliver S in the longitudinal direction of the feed roller 3.

The traveling rail 7 is supported above the cans 5 by brackets 8 on the creel 2 so as to extend along the longitudinal direction of the roving frame 1. Running rail 7
A sliver splicing machine 9 for joining (slicing splicing) the old and new slivers S1 and S2 is movably supported on a traveling rail 7. That is, as shown in the figure, a box-shaped housing 10 is provided with a bracket 12 equipped with rollers 11a.
It is supported by the traveling rail 7 in a suspended state via. Then, a part of the rollers 11a is driven by the traveling motor 11
The sliver splicing machine 9 is movable along the traveling rail 7 by being driven by (as shown in FIG. 1).
Further, a rail (not shown) orthogonal to the can row is laid on the side floor of the can row, and a carrier (not shown) capable of mounting the sliver splicer 9 on the rail reciprocates on the rail. It is arranged as possible. The sliver splicer 9 can be moved between the traveling rails 7 by moving along the rails while being mounted on the carrier.
Further, a sliver cutting machine (not shown) for cutting the sliver S moves between the traveling rails 7 and 7 while traveling on the traveling rails 7 while being mounted on the carrier similarly to the sliver splicing machine 9. It is possible.

As shown in FIG. 3, a sliver introducing portion 13 extending vertically is provided on the front surface of the housing 10.
A sliver piecing unit 14 is arranged in the housing 10 at a position corresponding to the sliver introducing portion 13. The old sliver S2 and the new sliver S1 introduced into the sliver introducing section 13 have their overlapping ends pierced by a large number of needles (not shown) by the operation of the sliver piecing unit 14, and as a result, the fibers are entangled and one sliver S It is supposed to be joined as.

A cover 10a whose front is open is fixed to the upper surface of the housing 10 of the sliver splicer 9.
Two photoelectric sensors 15a are provided on the upper surface of the cover 10a,
15b is provided. The sensor 15b is arranged at a position corresponding to the center of the width of the sliver introducing portion 13,
“A” is arranged at an end of the upper surface of the cover 10a which is on the front side of the sensor 15b in the traveling direction of the sliver splicing machine 9 (direction of arrow A in the figure). Each of the sensors 15a and 15b includes a light projecting unit and a light receiving unit, and the light receiving unit receives the reflected light from the object with respect to the irradiation light from the light projecting unit, so that the sliver splicer 9 is connected to the sensors 15a and 15b. It is possible to detect an object on the side orthogonal to the traveling direction of. The sensors 15a and 15b are activated after a predetermined time has elapsed from the start of traveling of the sliver joint 9, and when the sensor 15a detects an object, the sliver joint 9 is decelerated and the sensor 15b
When the object is detected by, the traveling of the sliver joint machine 9 is stopped. Further, the operation of the sensors 15a and 15b is stopped at the same time when the traveling of the sliver joint machine 9 is stopped.

A cotton collecting box 16 is provided on one side of the housing 10, and the inside of the cotton collecting box 16 becomes negative pressure by the operation of the blower 17. The first arm 18a and the second arm 18a are provided on the opposite side of the housing 10 from the position where the cotton collection box 16 is disposed.
A biaxial arm 18 including an arm 18b is provided. The first arm 18a is swingable around its base end by a drive device (not shown). The second arm 18b is rotatably supported by the tip of the first arm 18a, and is swung by a motor 19 provided at the base end of the first arm 18a via a drive mechanism (not shown).

The second arm 18b is hollow and has a sliver gripping device 20 attached to its tip. The sliver gripping device 20 has a double cylindrical structure, and an outer suction pipe 21 is rotatably loosely fitted to an inner support cylinder (not shown) fixed to the second arm 18b. . A suction port 21a is formed in the suction pipe 21 at a position corresponding to a through hole (not shown) formed in the support cylinder. The suction pipe 21 is a rotary actuator (rotary solenoid) 22 arranged at the base end of the suction pipe 21.
The drive of the suction port 21a allows the suction port 21a to rotate between an open position where the suction port 21a faces the through hole and a closed position where the suction port 21a does not face the through hole.

A pipe 23 is fixed near the base end of the first arm 18a in parallel with the sliver gripping device 20. The first end of the pipe 23 is connected to the cotton collection box 16 via a hose (not shown). The second end of the pipe 23 is connected to the second arm 18b via the bellows hose 24. That is, the suction pipe 21 is in communication with the cotton collection box 16 via the second arm 18b, the bellows hose 24, the pipe 23, and the hose.

The housing 10 has a sliver introduction part 1
The sliver take-in lever 25 that takes in the new sliver S1 arranged at the introduction position below the sliver 3 into the sliver introduction section 13
Is rotatably equipped. A sliver take-in lever 26 that takes in the old sliver S2 and a sliver retreat arm 27 that retracts the old sliver S2 are rotatably provided on the upper side of the sliver introducing portion 13. Further, a large number of sliver retainers 28 are integrally rotatable at positions corresponding to the sliver introducing portion 13. The sliver take-in levers 25 and 26 and the sliver presser 28 are not shown in the standby position shown in FIG. 3 and the operating position corresponding to the sliver introducing portion 13 rotated from the position by approximately 180 ° in the counterclockwise direction in the figure. It is arranged to be rotated by the action of the drive device.

Further, the sliver retracting arm 27 is rotated from the standby position shown in FIG. 3 where the old sliver S2 and the new sliver S1 cannot be engaged, and a predetermined angle, for example 90 °, clockwise from that position. It is arranged so as to be rotated by the action of a drive device (not shown). When the sliver retracting arm 27 is located at the working position, the sliver retracting arm 27 is located below the feed roller 3 and the old sliver S2.
To hold the old sliver S2 in a retracted position where it does not interfere with the sliver gripping device 20, both sliver take-in levers 25 and 26, and the sliver presser 28.

Further, on the lower side of the sliver introducing section 13,
As shown in FIG. 1, a sliver retracting arm 29 as a sliver retracting means for retracting the new sliver S1 is rotatably equipped. The sliver retreat arm 29 is at a standby position where the new sliver S1 and the old sliver S2 cannot be engaged as shown in the figure, and approximately 90 ° in the counterclockwise direction from that position in the standby position.
It is arranged to be rotated by the action of a driving device (not shown) at the rotated action position indicated by the two-dot chain line. In the state where the sliver retracting arm 29 is placed in the operating position, the sliver retracting arm 29 is engaged with the new sliver S1 that is introduced into the sliver introducing portion 13 and hangs down from the lower portion of the sliver retracting arm 29, and holds the new sliver S1 in the retracted position that does not interfere with the sliver gripping device 20. It is supposed to do. Sliver piecing unit 14, both sliver intake levers 25, 26, sliver retainer 28
The sliver retracting arms 27 and 29 are provided on the housing 10.
Based on the rotation of the motor 31 that is drive-controlled by the control device 30 therein, the motor 31 is interlocked and driven via a cam link mechanism (not shown).

The control device 30 is connected to a host computer (not shown) for driving and controlling the roving frame 1 via a signal cable (not shown) arranged along the traveling rail 7. Traveling motor 11, sensors 15a, 15b,
Blower 17, motor 19, rotary actuator 22
Also, other motors and the like are driven and controlled by the control device 30 based on the signal exchange with the host computer. The carrier and the sliver cutting machine are driven based on a command from the host computer.

Next, the operation of the sliver splicing machine configured as described above will be described. Prior to the sliver splicing work by the sliver splicer 9, cutting work of the spun old sliver S2 to be spliced and replacement work of the empty can 5 and the full can 5F accommodating the new sliver S1 are performed. Be seen. The sliver cutting operation is performed by a sliver cutting machine that moves along the traveling rail 7, and the old sliver S2 is cut at a position below the sliver introducing portion 13 of the sliver splicing machine 9. The old sliver S2 after being cut is in a state of hanging straight from the feed roller 3 through the separator 6, and the full can 5F is arranged below it. The full can 5F is arranged such that the end portion of the new sliver S1 hangs from the upper part of the full can 5F to the opposite side to the roving machine 1 by a predetermined amount (state in FIG. 2). At that time, the end portion of the new sliver S1 and the end portion of the old sliver S2 hanging from the feed roller 3 are substantially at the same position in the longitudinal direction of the feed roller 3.

Cutting work of the old sliver S2 and the can 5,
While the replacement work on the 5th floor is being performed, the sliver splicer 9 is on standby at a predetermined standby position. And the sliver splicer 9
When the sliver splicing work command signal is received from the host computer, the sliver splicing machine 9 starts the sliver splicing work. First, prior to the traveling of the sliver connecting device 9, the blower 17 is operated and the inside of the sliver gripping device 20 becomes negative pressure. The arm 18 is arranged at a position shown in FIG. 2 where the sliver gripping device 20 can grip the end of the new sliver S1 that hangs from the upper portion of the full can 5F when the sliver splicing machine 9 starts traveling. This position is the original position as the work start position of the arm 18. The sliver take-in levers 25 and 26 and the sliver presser 28 are in the standby position. Then, the traveling motor 11 is driven by the control device 30 based on the sliver splicing operation command signal, and the sliver splicing machine 9 starts traveling with the arm 18 on the front side in the traveling direction.

Simultaneously with the start of running of the sliver joint machine 9, the sensors 15a and 15b are activated. The sliver splicer 9 moves along the traveling rail 7, and the sensor 15a hangs down from the feed roller 3. The old sliver S2 after cutting is cut.
When detecting, the traveling speed of the sliver joint machine 9 is reduced. Then, the old sliver S2 detected by the sensor 15a
Is detected by the sensor 15b, the sliver splicer 9
Stops its running. Then, simultaneously with the stop of the sliver splicer 9, the operation of the sensors 15a and 15b is stopped.
At this stop position, the sliver splicing machine 9 is in a state in which the sliver introducing portion 13 faces the old sliver S2 as shown in FIG.

After this stop, the sliver splicing machine 9 carries out a sliver joining operation for joining the end of the new sliver S1 and the end of the old sliver S2. Below, sliver splicer 9
The sliver joining work according to the above will be described with reference to FIGS. 4 to 11, the traveling rail 7 and the cover 10 are shown.
Illustration of a, the roller 11a, the sensors 15a and 15b, etc. is partially omitted.

First, at the stop position of the sliver splicer 9 shown in FIG. 4, the suction port 21a of the sliver gripping device 20 corresponds to the end of the new sliver S1 hanging from the upper part of the full can 5F. Then, the end portion of the new sliver S1 is sucked into the suction port 21a which has a negative pressure due to the operation of the blower 17. At the same time as this, the rotary actuator 2
2 is operated, the suction port 21a is rotated to the closed position, and the end of the new sliver S1 is gripped by the sliver gripping device 20. From this state, the arm 18 is driven as shown in FIG. 5, and the sliver gripping device 20 moves upward in front of the sliver introducing portion 13 while gripping the new sliver S1. On the other hand, prior to driving the arm 18, the sliver retract arm 2
7 is rotated from the standby position to the operating position, and the old sliver S2 at the position corresponding to the sliver introducing portion 13 is held at the retracted position where it does not interfere with the sliver gripping device 20.

Then, as shown in FIG. 6, the new sliver S1
Is in a state corresponding to the sliver introducing section 13, the lower sliver taking-in lever 25 is rotated to the operating position, and the new sliver S1 is engaged with the sliver taking-in lever 25 and taken into the sliver introducing section 13. Further, the new sliver S1 is held in the sliver introducing part 13 in a state of being hooked by a large number of needles provided in the sliver piecing unit 14 by the operation of the sliver piecing unit 14.

From this state, the sliver gripping device 20 is slightly moved upward, and the new sliver S1 is cut off between the sliver take-in lever 25 and the sliver gripping device 20.
At the same time as the cutting of the sliver, the sliver presser 28 rotates to press the end of the new sliver S1. After that, the sliver retreat arm 29 is rotated to the operating position, and the sliver introduction portion 13 holds the sliver take-in lever 25 and the sliver presser 28 at their ends to hold the sliver cans 5.
The new sliver S1 hanging down in the F direction is retracted to a position where it cannot be engaged with the sliver gripping device 20 (state of FIG. 7).

After that, the sliver holder 28 is returned to the standby position, and the loading of the new sliver S1 into the sliver introducing portion 13 is completed. Further, the sliver cutting end held by the sliver holding device 20 is collected in the cotton collection box 16 via the second arm 18b, the bellows hose 24, the pipe 23 and the hose by opening the suction port 21a.

Next, the sliver gripping device 20 is placed at a position corresponding to the lower end of the old sliver S2 by driving the arm 18, and the sliver retracting arm 27 is returned to the standby position. Then, after the old sliver S2 is sucked by the suction port 21a, the suction pipe 21 is arranged at the closed position, and the lower end of the old sliver S2 is gripped by the sliver gripping device 20 while being sucked by the suction port 21a (Fig. State 8). After the sliver gripping device 20 is slightly moved upward, the upper sliver take-in lever 26 is placed from the standby position to the working position, and the old sliver S2 is introduced into the sliver introducing portion 13 (state in FIG. 9). From this state, the sliver gripping device 20 is moved down, and the old sliver S2 is cut between the sliver take-in lever 26 and the sliver gripping device 20. Almost at the same time as this cutting, the sliver presser 28 is repositioned in the operating position, and the old sliver S2 is gripped by the sliver presser 28 and the sliver piecing unit 14 (state of FIG. 10).

On the other hand, the sliver gripping device 20 continues its downward movement and moves to the original position. At that time, since the new sliver S1 hanging from the lower portion of the sliver introducing portion 13 is held by the sliver retracting arm 29 at a position where it cannot engage with the sliver gripping device 20, the sliver gripping device 2
There is no possibility that 0 hooks the new sliver S1 and disconnects it.
When the sliver gripping device 20 passes beneath the sliver introducing portion 13 in the process of moving to the original position, the sliver retreat arm 29 is moved to the standby position. The cutting end of the sliver held by the sliver gripping device 20 is the suction port 2
When 1a is opened, it is collected in the cotton collection box 16 in the same manner as described above. The opened suction port 21a is closed before the sliver gripping device 20 moves to the original position.

The ends of the new sliver S1 and the ends of the old sliver S2, which are gripped by the sliver presser 28 and the sliver piecing unit 14, are overlapped in the sliver introducing portion 13, and the sliver piecing unit 14 is operated in this state. The needle is reciprocated. That is,
The superposed ends of the old sliver S2 and the new sliver S1 introduced into the sliver introducing section 13 are pierced by a large number of needles, and the fibers are entangled and joined as one sliver S. After the joining work of the old and new slivers S1 and S2 by the sliver piecing unit 14 is completed, both the sliver take-in levers 25 and 26 and the sliver presser 28 are rotated to the standby position. As a result, the sliver S is released from the sliver introducing portion 13 and the feed roller 3 is filled with a full can
The state becomes continuous (state of FIG. 11).

Thus, one cycle of the sliver joining work is completed. After that, the sliver splicing machine 9 starts traveling toward the next old sliver S2 to be spliced, with the sliver gripping device 20 arranged at the original position. The suction port 21a of the sliver gripping device 20 is opened before the sliver splicing machine 9 reaches the next work position. Since the sliver gripping device 20 is arranged at the original position corresponding to the end of the new sliver S1 hanging from the full sliver can 5F, the end of the new sliver S1 is immediately sucked as soon as the sliver splicer 9 reaches the next working position. It is suction-held at the mouth 21a. Therefore, the sliver splicing work is smoothly performed without any unnecessary stroke.

Thus, the sliver splicer 9 is the new sliver S
1 and the old sliver S2 are joined in sequence.
Then, when all the sliver splicing work of the can row is completed, the sliver splicing machine 9 sets the arm 18 in the original position and returns on the traveling rail 7 toward the standby position.

As described in detail above, according to the present embodiment, the old and new sliver S1 for the sliver piecing unit 14 are provided.
The returning operation of the arm 18 to the original position performed after taking in S2 is performed in parallel with the joining work of the old and new slivers S1 and S2 performed by the sliver piecing unit 14. Therefore, the cycle time of the sliver splicing work performed by the sliver splicing machine 9 can be relatively shortened,
The work efficiency of the sliver splicing machine 9 can be improved. As a result, the time required for the sliver splicing work was reduced by the roving machine 1.
When it is accumulated with respect to all the weights, the operating efficiency of the roving frame 1 can be improved. Also, before the sliver splicer 9 reaches the next working position, the arm 1
Since 8 is moved and arranged in advance to the original position which is the work start position, the arm 18 moves the new sliver S1 at the next work position.
It is possible to smoothly perform the gripping work.

Further, when the distance between the weights, that is, the distance between the old sliver S2 that hangs down at a predetermined interval along the can row, is short, or when the traveling speed of the sliver splicing machine 9 is increased in order to improve the sliver splicing work efficiency. Reduces the moving time between the respective work positions of the sliver joint machine 9. According to the present embodiment, even when the moving time of the sliver splicing machine 9 is shortened in this way, the arm 18 is returned to the original position before the traveling of the sliver splicing machine 9 is started. The arm 18 can return to its original position before the 9 reaches the next working position. Then, the sliver gripping device 20 can grip the end of the new sliver S1 immediately after the sliver splicing machine 9 stops at the next work position. As a result, it is possible to realize smooth sliver joining work with good work efficiency.

Further, conventionally, in order to avoid the engagement between the sliver S and the arm 18 after joining, the moving direction of the sliver splicing machine 9 is restricted to the direction in which the arm 18 is in the forward direction. However, according to this embodiment, the arm 18 is moved to the original position where it cannot be engaged with the sliver S after joining before the movement of the sliver splicer 9 is started.
The moving direction is not restricted during the sliver splicing work. Therefore, the sliver splicing work can be appropriately performed regardless of the forward movement or the backward movement of the sliver splicing machine 9.

Further, since the sliver splicing machine 9 is stopped by the deceleration sensor 15a and the stopping sensor 15b in the deceleration process, the traveling speed of the sliver splicing machine 9 is increased by shortening the cycle time. Even in this case, the sliver splicing machine 9 can be accurately stopped at the work position.

The present invention is not limited to the above embodiments, but may be modified as follows without departing from the spirit of the invention. (1) After the traveling of the sliver splicing machine 9, the arm 18 may be returned to the original position after the sliver gripping device 20 has moved to a predetermined position where the sliver S cannot be engaged. For example, the sliver gripping device 20 may be returned to the original position while the sliver splicing machine 9 is traveling for a predetermined time after the traveling start. In this case, since the return operation of the arm 18 to the original position is performed in parallel with the traveling operation of the sliver joint machine 9, the cycle time of the sliver joint operation is relatively shortened, and the sliver joint operation is smooth with good work efficiency. Work can be realized.

(2) The present invention is not limited to the roving machine, but may be applied to other spinning machines using a sliver as a raw material such as a kneading machine. (3) In the above embodiment, the new sliver S1 is retracted immediately after the new sliver S1 shown in FIG. 7 is taken into the sliver piecing unit 14, but the operation of the sliver retreat arm 29 can be changed at an appropriate time. For example, in FIG.
It may be performed immediately before the return of the arm 18 shown in 0 to the original position is started.

(4) The present invention may be applied to a spinning machine equipped with a preliminary can row as described in the prior art. (5) In the above embodiment, the arm work start position (home position)
Although the sliver gripping device 20 corresponds to the end of the new sliver S1, the work start position can be appropriately set in consideration of smoothing of the sliver joining work. For example, when the present invention is applied to the sliver splicing machine 46 shown in the prior art, even if the sliver splicing machine 46 sets the work start position to a position where it cannot be engaged with the sliver S before cutting at the next work position. Good.

(6) The present invention may be applied to a sliver splicer integrally equipped with a sliver cutting device for cutting the old sliver S2 and the like. In this case, according to the inventions of claims 1 and 2, each work of the sliver cutting work and the sliver joining work performed by the sliver splicing machine is arbitrarily set regardless of the forward or backward movement of the sliver splicing machine. can do.

(7) When the arm moves to the work starting position, the arm may contact the sliver as long as the sliver is not damaged. (8) Although the arm 18 is of the biaxial type in the above embodiment, it may be of a multiaxial type or a telescopic type.

(9) When the end of the new sliver S1 is arranged behind the old sliver S2 in the traveling direction of the sliver splicing machine 9 and the end of the new sliver S1 is suction-held while the sliver splicing machine is running. The present invention may be applied to.

(10) Although the sliver retracting arm 29 is driven by the motor 31 via the cam / link mechanism in the above embodiment, the sliver retracting arm 29 may be driven by another actuator such as a cylinder.

[0049]

As described in detail above, according to the present invention, a predetermined work is performed by the sliver splicer to move the arm to the work start position until the sliver splicer reaches the next work position. By performing them in parallel, there is an excellent effect that the cycle time of the sliver splicing work by the sliver splicing machine can be shortened. Furthermore, the first
According to the invention described in the second aspect, the sliver splicing machine has an excellent effect that it can advance in any of the front and rear directions after completion of joining the old and new slivers.

[Brief description of drawings]

FIG. 1 is a schematic bottom view showing a sliver splicing machine according to an embodiment of the present invention.

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

FIG. 3 is a schematic perspective view of a sliver splicer.

FIG. 4 is a schematic perspective view showing the operation of the sliver splicer.

FIG. 5 is a schematic perspective view of the same.

FIG. 6 is a schematic perspective view of the same.

FIG. 7 is a schematic perspective view of the same.

FIG. 8 is a schematic perspective view of the same.

FIG. 9 is a schematic perspective view of the same.

FIG. 10 is a schematic perspective view of the same.

FIG. 11 is a schematic perspective view of the same.

FIG. 12 is a schematic side view of a conventional device equipped on the roving frame.

FIG. 13 is a schematic perspective view of a conventional device.

[Explanation of symbols]

1 ... Rover as a spinning machine, 3 ... Feed roller, 5F ...
Full sliver cans, 9 ... Sliver splicing machine, 14 ... Sliver piecing unit, 18 ... Arms forming arm, 20 ... Sliver gripping device forming arm, 29 ...
A sliver retracting arm as a sliver retracting means, S ... sliver, S1 ... new sliver, S2 ... old sliver.

Claims (3)

[Claims] 1. A sliver piecing unit is provided with an arm for taking in an old sliver hanging from a feed roller and an end of the new sliver housed in a full sliver can, and joining the sliver piecing unit in a state in which the new sliver is extended in a vertical direction. In the sliver splicer, it is arranged so that it can be moved between a standby position where it cannot engage with the old and new sliver and an operating position where it engages with the sliver and retracts the sliver out of the movement path of the arm to the work start position. Sliver splicer in spinning machine equipped with sliver retracting means. 2. The sliver piecing unit equipped in the sliver splicer incorporates the old sliver hanging from the feed roller by an arm provided in the sliver splicer and the end of the new sliver accommodated in the full sliver can, and the sliver piecing unit. In the sliver splicing method of joining the old sliver and the new sliver in the state of extending in the vertical direction by the operation of the unit, in the moving path to the work start position of the arm after the old sliver is taken into the sliver piecing unit by the arm A sliver splicing method in a spinning machine, wherein an existing sliver is retracted to the outside of the movement path by the sliver retracting means, and in that state, the arm is moved back to the work start position. 3. The sliver piecing unit equipped in the sliver splicer incorporates the old sliver hanging from the feed roller by an arm provided in the sliver splicer and the end of the new sliver accommodated in the full sliver can, and the sliver piecing is carried out. In the sliver splicing method that joins the old sliver and the new sliver while extending in the vertical direction by the operation of the unit, the sliver splicing machine that has completed the sliver splicing work starts running toward the next work position, and the arm starts the work. A sliver splicing method for a spinning machine, wherein an arm is returned to a work start position while the sliver splicer becomes disengageable with a sliver after joining in the process of moving to a position.