JPH06264314A - Sliver ending machine in spinning machine - Google Patents

Abstract

PURPOSE:To detect whether joining of sliver by a sliver ending machine is carried out or not without fail before starting operation of a spinning machine. CONSTITUTION:A sliver ending machine 9 is movably fitted in a hung state to a traveling rail 7 and is stopped at a position corresponding to an old sliver 3 vertically dropped through a separator 6 from a feed roller 3 to join the end of the old sliver 2 to the end of a new sliver S1 stored in a full sliver can 5F. A reflection type sensor 29 is set at the front (this side based on paper face) of a housing 10. The sensor 29 is operated for a given time from starting of the movement of the sliver ending machine 9 in the right direction on the same figure and detects while moving at an upper stream side from a joining part SL of sliver, namely in a zone in which the hung part at a can 5F side. The sensor 29 is connected to a host computer and the host computer is coupled with a control device of a roving frame. When wrong joining of sliver occurs, the roving machine is not started.

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 equipped on a spinning machine such as a roving machine and a kneading machine, and more particularly to a sliver splicing machine capable of detecting whether or not the sliver splicing machine joins the sliver without failure. It is about machines.

[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.). 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. 8, a can 52 that accommodates the sliver S that is being spun behind the roving machine 51 and a spare full sliver can 53 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 51 (direction perpendicular to the paper surface of FIG. 8). One feed roller 54 is arranged in the row of cans 52 and the row of full sliver cans 53 along the longitudinal direction of the roving machine 51.
A guide 55 is arranged at a position corresponding to the boundary between both can rows. The sliver S is spun from each can 52 through the guide 55, the feed roller 54, and the feed roller 56 to the roving machine 51. The sliver splicer 57 moves below the feed roller 54 on a traveling rail 58 that is installed along the can row.

The sliver splicing machine 57 is equipped with a sliver piecing unit (not shown) on its front surface (left side in FIG. 8). Further, the sliver splicing machine 57 is provided with an arm 59 equipped with a sliver gripping device (not shown) at its tip. The arm 59 is rotated in a plane orthogonal to the moving direction of the sliver splicer 57, and the sliver gripping device is moved to a position above the introduction part of the sliver piecing unit and to a position corresponding to the end of the new sliver S1 of the full sliver can 53. It is supposed to be placed.

During the sliver splicing operation, the sliver splicing machine 57 travels to a position corresponding to the old sliver S and stops, and the old sliver S and the new sliver S1 are joined at the stopped position. First, the sliver (former sliver) S that has been spun and connected to the roving machine 51 is gripped by the sliver gripping device, introduced into the introduction part of the sliver piecing unit, and the sliver provided in the sliver piecing unit. It is held in the introduction section by a take-up arm (not shown). Next, the sliver gripping device grips the old sliver S below the sliver piecing unit and moves downward to cut the old sliver S. Next, the sliver gripping device grips the end of the new sliver S1 housed in the full sliver can 53, and introduces the new sliver S1 into the introduction part so as to overlap with the old sliver terminal part held by the sliver piecing unit. . And the old sliver S and the new sliver S
The sliver gripping device moves in a direction away from the sliver piecing unit while the overlapping portion 1 is gripped, and the new sliver S1 is cut. Next, the sliver piecing unit is activated to perform sliver splicing. In this way, when all the old sliver S are joined to the new sliver S1 and the sliver splicing work is completed, the roving machine 51 which has been stopped is stopped.
The operation of is started. When the operation of the roving machine 51 is started, the sliver S that has passed through the guide 55 passes over the feed roller 54 while being guided by the separator 60 shown in FIG. 9, and is spun to the roving machine 51 through the feed roller 56.

[0005]

However, when the joining of the new sliver S1 and the old sliver S by the sliver splicing machine 51 fails, the unsliced old sliver S is started by the operation of the roving machine 51 to start the roving machine. 51 is supplied.
In general, in the roving frame 57, a pair of sensors 61 as shown in FIG. When the end of the old sliver S passes through the feed roller 54 near the roving machine 51 and hangs down from the feed roller 56 as shown in the figure, the end of the old sliver S is detected by the sensor 61. Then, the operation of the roving frame 51 is stopped based on the detection signal of the sensor 61. Then, after the worker joins the end of the old sliver S and the end of the new sliver S1, the operation of the roving machine 51 is started.

However, in order to join the end of the old sliver S detected by the sensor 61 to the end of the new sliver S1, the new sliver S drawn from the full sliver can 53 is joined.
It is necessary for the operator to manually carry the end portion 1 through the upper side of each feed roller 54 which is at a high position for the operator to a position where it can be joined to the old sliver S. In particular, when a joining error between the old sliver S1 and the new sliver S1 occurs at the full sliver can 53 in the last row, the distance from the full sliver can 53 to the position of the sensor 61 is long, so it takes time to carry the end of the new sliver S1. It takes. In addition, when such a sliver joining error occurs, the operation of the roving machine 51 is stopped until the joining of the old and new slivers S1 and S is completed, so that there is a problem that the operating rate of the roving machine 51 decreases.

The present invention has been made to solve the above problems, and an object thereof is to detect whether or not sliver joining by a sliver splicer has been performed without failure before the operation of the spinning machine is started. An object of the present invention is to provide a sliver splicer for a spinning 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 extend in the vertical direction. In the sliver splicer that joins in the closed state, after the joining of the new sliver and the old sliver by the sliver splicer is completed, the detection signal is detected by detecting the presence or absence of the sliver in the hanging state at the position closer to the can than the end of the old sliver. A detector for outputting as is provided.

According to a second aspect of the present invention, in the first aspect, the control means for preventing the start of the spinning machine based on the detection signal of the sliver joint failure of the detector is provided.

[0010]

According to the invention described in claim 1, with the above construction, the old sliver hanging from the feed roller and the end of the new sliver accommodated in the full sliver can are extended vertically by the sliver splicer. To be joined. After the joining of the old and new sliver is completed, the presence or absence of the sliver in the drooping state at the position closer to the can than the end of the old sliver is detected by the detector and output as a detection signal. When the old sliver and the new sliver are joined, the sliver is connected to the full sliver can from the feed roller, and the sliver in the hanging state exists on the can side of the can of the old sliver. On the other hand, when the old sliver is not joined to the old sliver, the new sliver falls by its own weight, so that there is no sliver in the hanging state on the can side of the end of the old sliver. Therefore, the sliver joining error due to the sliver splicer is detected by the detector.

According to the second aspect of the invention, the start-up of the spinning machine is blocked by the control means on the basis of the sliver joint failure detection signal from the detector. Therefore, it is possible to prevent only the old sliver from being supplied to the spinning machine even if a sliver joining failure occurs due to the sliver splicing machine.

[0012]

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. 3, 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. 3), 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. Sliver S from Kens 5
A separator 6 that regulates the position of the sliver S is supported by the support rod 4 at the rising position of.

On the creel 2, a traveling rail 7 can 5
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 that joins the new sliver S1 and the old sliver S2 is movably supported on the traveling rail 7 so that it can travel. The sliver splicer 9 has a box-shaped housing 10 as shown in FIG.
Is supported in a suspended state on the traveling rail 7 via a bracket 12 equipped with rollers 11. A part of the rollers 11 is driven by a motor (not shown), and the sliver joint machine 9 is moved along the traveling rail 7 by the forward and reverse rotations of the motor. Also, the sliver splicer 9
Is a carrier that reciprocates on rails laid on the floor on the side of the row of the roving frame 1 and the cans 5 (neither is shown).
It is mounted on and can move between the traveling rails 7. A sliver cutting machine (not shown) is configured to be able to travel on the traveling rail 7. Further, the roving machine 1, the sliver splicing machine 9, the carrier and the sliver cutting machine are driven based on a command from a host computer described later.

As shown in FIG. 4, a pair of photoelectric sensors 13a and 13b are provided on the side surface and the upper surface of the housing 10 of the sliver splicer 9. One sensor 13a
When the cut old sliver S2, which will be described later, is detected, the sliver joint machine 9 is decelerated, and when the other sensor 13b detects the old sliver S2, the sliver joint machine 9 is stopped.

A sliver introducing portion 14 extending in the vertical direction is provided on the front surface of the housing 10, and a sliver piecing unit 15 is provided in the housing 10 at a position corresponding to the sliver introducing portion 14. Sliver introduction part 1
The superposed ends of the old sliver S2 and the new sliver S1 introduced in No. 4 are pierced by many needles by the operation of the sliver piecing unit 15, so that the fibers are entangled and joined as one sliver S. .

A cotton collecting box 16 is provided on one side of the housing 10, and the inside of the cotton collecting box 16 becomes a negative pressure by the action 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 is driven by a rotary actuator (rotary solenoid) 22 arranged at the base end of the suction pipe to be in 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. It is rotatable. 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 connected to the second arm 1
8b, the bellows hose 24, the pipe 23, and the hose so that they are in communication with the cotton collection box 16.

The housing 10 has a sliver introducing portion 1
The sliver take-in lever 25 for taking in the new sliver S1 arranged at the introduction position below the sliver 4 into the sliver introduction part 14
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 14. Further, a large number of sliver retainers 28 are integrally rotatable at positions corresponding to the sliver introducing portion 14. The sliver take-in levers 25 and 26 and the sliver presser 28 are not shown in the standby position shown in FIG. 4 and the working position corresponding to the sliver introducing part 14 rotated by 180 ° in the counterclockwise direction in the figure. It is arranged to be rotated by the action of the drive device.

The sliver retracting arm 27 is rotated from the standby position shown in FIG. 4 where the old sliver S2 and the new sliver S1 cannot be engaged, and a predetermined angle, for example 90 °, clockwise from the standby 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 the 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, below the front surface of the housing 10, the sliver piecing unit 15 joins the old and new slivers S1 and S2 on the upstream side (full sliver can 5F).
A reflection type sensor 29 as a detector for detecting the sliver S located on the side) is provided. As shown in FIG. 1, the position of the sensor 29 is below the lower end of the sliver introducing part 14 and is more than the area where the new sliver S1 joined to the traveling direction of the sliver splicing machine 9 in the traveling direction can exist. It is on the rear side.

After the completion of the sliver joining work, the sensor 29
It is designed to be operated for a predetermined time. That is, the sensor 29 is operated immediately before the sliver splicer 9 starts moving from the position to the next sliver joining position, and is operated until the sensor 29 completely passes through the area where the new sliver S1 can exist. The sensor 29 includes a light emitting unit and a light receiving unit,
The light receiving section receives the reflected light from the object with respect to the light emitted from the light projecting section. The sensor 29 outputs an ON signal when light is detected by the light receiving section, and outputs an OFF signal when light is not detected by the light receiving section.

Next, the electrical configuration of the sliver splicing monitoring device will be described. As shown in FIG. 5, the roving frame 1 is connected to the control device 31 from the host computer 30 as a judgment means.
The drive is controlled based on the drive signal output to the. Further, a control device 32 constituting a control box is arranged in the housing 10 of the sliver splicer 9.
The controller 32 controls the host computer 30 via a signal cable (not shown) arranged along the traveling rail 7.
It is possible to send and receive signals to and from. Sensor 13a,
13b is connected to the control device 32, and the control device 32 decelerates and stops the sliver joint machine 9 based on each detection signal from the sensors 13a and 13b. or,
Blower 17, motor 19, rotary actuator 22
Also, other motors and the like not shown are connected to the control device 32.

The sensor 29 is connected to the host computer 30 via the control device 32, and the detection signal of the sensor 29 is output to the host computer 30 via the control device 32. The host computer 30 has a built-in counter (not shown) only when the ON signal is not input from the sensor 29 within the operation time of the sensor 29.
Is counted by one and the counted number is stored in the storage device 30a. The counter is adapted to be reset at the start of the sliver joining work in the can row. The host computer 30 reads the count number from the storage device 30a after completion of the sliver splicing work of the can row, outputs a drive signal to the control device 31 when the count number is "0", and the count number is not "0". In this case, the drive signal is not output to the control device 31. When the count number is not "0", the host computer 30 outputs an alarm signal to the alarm device 33 arranged in the roving frame 1. The alarm device 33 activates the alarm buzzer based on the alarm signal, and displays the count number, that is, the sliver joint failure number, on its display unit (neither is shown). Further, the roving machine 1 is provided with a reset button 34 connected to the host computer 30, and when the reset button 34 is pressed when the roving machine 1 is stopped after the sliver splicing work is completed, the host computer 30 causes the controller 31 to operate. It is designed to output a drive signal.

Next, the operation of the sliver splicing monitoring device configured as described above will be described. Prior to the sliver splicing operation by the sliver splicing machine 9, the cutting operation of the old sliver S2 to be spliced, which has been spun, and the empty can 5
And the full cans 5F accommodating the new sliver S1 are replaced. The sliver cutting work is performed by a sliver cutting device that moves along the traveling rail 7. The old sliver S2 after cutting is in a state of hanging from the feed roller 3, and the full can 5F is arranged below it. On the 5th floor, the end of the new sliver S1 is the sliver splicer
Is arranged in a hanging state at a predetermined position on the moving side.

The sliver splicing machine 9 stands by at a predetermined standby position, and upon receiving a sliver splicing operation command signal from the host computer 30, starts the sliver splicing work according to the command. At that time, the counter built in the host computer 30 is reset. Before the sliver splicing work is started, the blower 17 is driven and the inside of the cotton collection box 16 becomes negative pressure. At the start of traveling of the sliver splicing machine 9, the arm 18 is at a position where it holds the sliver gripping device 20 at a first gripping position where it can grip the new sliver S1 hanging from the upper portion of the full can 5F, as shown in FIG. It is arranged. This position is the original position of the arm 18. Also, both sliver intake levers 25, 26 and sliver retainer 2
8 is in the standby position. The sliver splicer 9 moves with the arm 18 on the front side in the traveling direction.

The sliver splicer 9 is one of the pair of sensors 13a and 13b shown in FIG.
When the sensor 13a on the front side in the traveling direction detects the old sliver S2, the speed is reduced, and when the sensor 13b on the rear side in the traveling direction detects the old sliver S2, the sensor 13a stops. At this stop position, the sliver introducing part 14 is in a state of facing the old sliver.
Further, the suction port 21a of the sliver gripping device 20 is brought into a state corresponding to the end of the new sliver S1, and at the same time as the stop, the end of the new sliver S1 is sucked into the suction port 21a.
It is gripped by the sliver gripping device 20 by the operation of the rotary actuator 22. In this state, the arm 18 is driven, and the sliver gripping device 20 grips the new sliver S1 and passes upward in front of the sliver introducing portion 14, so that the new sliver S1 corresponds to the sliver introducing portion 14. On the other hand, the sliver retracting arm 27 is rotated from the standby position to the operating position prior to driving the arm 18, and the old sliver S2 at the position corresponding to the sliver introducing portion 14 is held at the retracting position where it does not interfere with the sliver gripping device 20. It

Then, the lower sliver take-in lever 2
5, the new sliver S1 is engaged with the sliver take-in lever 25 and taken into the sliver introducing portion 14. Furthermore, the new sliver S1 is the sliver introduction part 1
It is held in the sliver piecing unit 15 by a large number of needles (not shown) provided in the No. 4 unit. From this state, the sliver gripping device 20 is moved upward, and the new sliver S
1 is a sliver intake lever 25 and a sliver gripping device 2
It is cut off from 0. Further, the sliver presser 28 rotates at the same time as this sliver cutting, and the end portion of the new sliver S1 is pressed. The cut end of the sliver gripped by the sliver gripping 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. After that, the sliver retainer 28 is returned to the standby position, and the incorporation of the new sliver S1 into the sliver introducing portion 14 is completed.

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 is gripped by the sliver gripping device 20 while the lower end of the old sliver S2 is sucked by the suction port 21a. 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 S
2 is introduced into the sliver introducing unit 14. From this state, the sliver gripping device 20 is moved down, and the old sliver S2 is cut between the sliver introducing part 14 and the sliver gripping device 20. At almost the same time, the sliver presser 28 is repositioned in the operating position, and the old sliver S2 is moved to the sliver presser 2
8 and the sliver piecing unit 15 are gripped. As a result, the end portion of the new sliver S1 and the end portion of the old sliver S2 are overlapped in the sliver introducing portion 14. In this state, the sliver piecing unit 15 is operated. Then, the old sliver S2 introduced into the sliver introducing unit 14
When the superposed ends of the new sliver S1 are pierced by a large number of needles, the fibers are entangled with each other and joined as one sliver S. On the other hand, the cut end of the sliver gripped by the sliver gripping device 20 is collected in the cotton collection box 16 in the same manner as described above by opening the suction port 21a. The sliver gripping device 20 is a sliver splicer 9
Returns to its original position after moving by a predetermined amount.

After the sliver piecing unit 15 completes the joining work of the sliver S1 and S2, when the sliver take-in levers 25 and 26 and the sliver presser 28 are rotated to the standby position, the sliver S is released from the sliver introducing portion 14. The feed roller 3 is connected to the full can 5F (FIG. 6). At the same time, the sensor 29 is operated and light is emitted from the light projecting portion toward the front of the housing 10.

As shown in FIG. 1, the sliver splicer 9 starts moving to the next work position in the right direction in the figure with the sensor 29 activated. The sensor 29 detects the presence or absence of a sliver in a drooping state below (upstream side) the joint SL of the sliver S (hatched portion in the figure), that is, upstream from the end of the old sliver S2. Before the start of the movement of the sliver splicing machine 9, the sensor 29 is always located on the rear side in the traveling direction of the sliver splicing machine 9 with respect to the sliver S that hangs downward from the joint SL. The sliver S that hangs downward from the joint SL can exist in a conical region having the apex near the lower portion of the joint SL and the bottom surface at the upper surface of the full sliver can 5F, as shown in FIG. Then, after the sensor 29 is activated,
It is activated for a predetermined time during its complete passage through this conical region.

Old and new sliver S by sliver splicer 9
When the joining of 1 and S2 is performed well, the irradiation light from the light projecting portion of the sensor 29 hits the sliver S that falls somewhere in the conical region during the movement of the sliver splicer 9, and the light received by the sensor 29 is received. Reflected to the section. When the sensor 29 receives the reflected light from the sliver S at the light receiving portion, it outputs an ON signal to the host computer 30 via the control device 32.

On the other hand, when the old and new slivers S1 and S2 are not joined properly by the sliver splicing machine 9 and the sliver is not joined, the new sliver S1 is moved to both sliver intake levers 25 and 26 and the sliver presser as shown in FIG. When 28 is rotated to the standby position, it falls by its own weight. Therefore, as shown in FIG. 2, since the sliver S does not hang down in the conical region, the sensor 29 receives light within the operating time during which the sliver splicer 9 is moved. Never. The host computer 30 counts one built-in counter only when the ON signal is not input within the operation time of the sensor 29, and stores the counted number in the storage device 30a.

When all the sliver splicing work of the can row by the sliver splicing machine 9 is completed in this way, the host computer 30 reads the count number stored in the storage device 30a. When the count number is “0”, the host computer 30 outputs a drive signal to the control device 31, and the control device 31 activates the roving frame 1 based on the drive signal. On the other hand, when the count number is not “0”, the host computer 30 outputs an alarm signal to the alarm device 33,
The alarm device 33 activates the alarm buzzer based on the alarm signal, and displays the count number, that is, the sliver bonding failure number on its display. At that time, since the drive signal is not output from the host computer 30 to the control device 31, the roving frame 1 is not started and remains in the stopped state. Therefore, even if a sliver splicing failure occurs due to the sliver splicing machine 9, the old sliver S2 is prevented from being supplied to the roving machine 1 without being spliced.

After that, the old and new sliver S that were not joined
When the operator joins all 1 and S2 and presses the reset button 34, a drive signal is output from the host computer 30 to the control device 31, and the control device 31 starts the roving frame 1 based on the drive signal.

As described above in detail, when the sliver splicing machine 9 is moved after the completion of the sliver splicing work, the sensor 29 detects the presence or absence of the sliver S on the upstream side of the joint SL of the old and new slivers S1 and S2. It is possible to recognize whether or not the old and new slivers S1 and S2 have been joined without failure.
Further, when the sliver joining failure occurs, the roving machine 1 is not started, so that the end portion of the old sliver S2 that has not been joined by the sliver splicing machine 9 remains suspended above the full sliver can 5F. . Therefore, the worker can easily join the old and new slivers S1 and S2 manually. Therefore, the roving frame 1 is not stopped unnecessarily, and the operating rate of the roving frame 1 can be improved.

Further, the roving frame 1 may be operated without spinning a specific weight. Even in this case, the sliver splicing machine 9 performs the sliver splicing work only at the position where the old sliver S2 exists by the detection of the sensors 13a and 13b. Therefore, it is determined that the sliver splicing weight is in the splicing stop state and the sliver splicing is defective. There is no fear of being.

The present invention is not limited to the above embodiments, but may be constructed as follows, for example, within the scope of the invention. (1) Although the present invention is applied to the roving spinning machine in the above embodiments, it may be applied to other spinning machines such as a kneading machine.

(2) The present invention may be applied to a spinning machine having a pre-can as well as a can during spinning as in the prior art. (3) In the above embodiment, the sensor 29 is a photoelectric type, but other sensors such as an ultrasonic sensor that can detect the sliver S without contact may be used. Further, a contact type sensor may be used as long as it does not adversely affect the sliver S.

(4) In the above embodiment, after the sliver splicing work of the can row is finished, the alarm device 33 notifies the occurrence of the sliver joint failure. However, when the sensor 29 detects the sliver joint failure, the sliver joint failure is immediately detected. It may be configured to notify the occurrence.

(5) The alarm device 33 may notify the can position where the sliver joint failure occurs. (6) The position of the sensor 29 may be set as appropriate as long as it can detect the new sliver S1 hanging after joining.
For example, the sensor is disposed on the front surface of the housing 10 corresponding to the upstream side of the joint SL at the same position as the separator 6 with respect to the traveling direction of the sliver splicer 9, so that the conical area can be surely covered. It may be configured to swing. Alternatively, the time when the sensor 29 is always activated and the output signal thereof is input to the host computer 30 may be set as the predetermined time after the end of each sliver joining operation.

[0041]

As described in detail above, according to the present invention, it is possible to detect whether or not the sliver joining by the sliver splicing machine has been performed without failure, before starting the operation of the spinning machine. By performing the splicing before starting the operation of the spinning machine, it is possible to improve the operating rate of the spinning machine.

[Brief description of drawings]

FIG. 1 is a schematic front view of a sliver splicing machine showing a state in which slivers are joined in one embodiment embodying the present invention.

FIG. 2 is a schematic front view of the sliver splicer showing a state where the sliver is not joined.

FIG. 3 is a schematic side view showing a relationship among a roving frame, a traveling rail, a sliver splicing machine, and the like.

FIG. 4 is a schematic perspective view of a sliver splicer.

FIG. 5 is a block diagram showing an electrical configuration of a sliver splicing monitoring device.

FIG. 6 is a schematic perspective view of the sliver splicing machine showing a state in which the sliver is joined.

FIG. 7 is a schematic perspective view of the sliver splicing machine showing a state in which the sliver is not joined.

FIG. 8 is a schematic side view of a conventional device.

FIG. 9 is a schematic perspective view of a conventional sliver detection device.

[Explanation of symbols]

1 ... Rover as a spinning machine, 3 ... Feed roller, 5F ...
Full sliver can, 9 ... Sliver splicer, 29 ... Sensor as detector, S1 ... New sliver, S2 ... Old sliver, S ... Sliver.

Claims (2)

[Claims] 1. A sliver splicer for joining an old sliver hanging from a feed roller and an end of a new sliver housed in a full sliver can in a vertically extending state, wherein the sliver splicer uses a new sliver and an old sliver. A sliver splicer in a spinning machine provided with a detector that detects the presence or absence of a hanging sliver at a position closer to the can side than the end of the old sliver and outputs it as a detection signal after completion of the joining. 2. The sliver splicing machine in a spinning machine according to claim 1, further comprising a control means for preventing the spinning machine from starting based on a detection signal of a sliver joint failure of the detector.