JP2005232612A - Piecing carriage-having fiber machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a piecing carriage-having fiber machine in which a suction pipe-driving means loaded on the piecing carriage is improved to lighten the piecing carriage and enable its quick and smooth travel. <P>SOLUTION: This fiber machine in which many fiber-treating units are disposed in parallel and which has the piecing carriage T capable of traveling along the arranged fiber-treating units is characterized in that the piecing carriage T has a feeding side yarn end-catching means (suction pipe) 5 for catching a yarn Y continuously fed from the feeding side, winding side yarn-withdrawing means 8, 9 for driving a winding package to withdraw the yarn, when piecing the yarn, a winding side yarn end-catching means (suction mouth) 6 for catching the winding side yarn Y withdrawn by the yarn-withdrawing means, and a piecing means 7 for piecing the yarns Y caught and guided with the catching means 5, 6, and that a single driving means for driving between the feeding side yarn end-catching position of the suction pipe 5 and a guide position to the piecing apparatus is disposed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a textile machine provided with a yarn splicing carriage, and more particularly to an improvement in driving means of a supply side yarn end capturing means for capturing a yarn supplied from a supply side.

Conventionally, in a textile machine such as a spinning machine that generates spun yarn from a raw material such as a sliver, a large number of spinning units (yarn processing units) are arranged in parallel, and by a yarn splicing cart that runs along these spinning units, The spinning unit is configured to perform a yarn splicing operation that requires yarn splicing. This yarn splicing carriage is equipped with a yarn splicing device that joins yarns, a suction pipe that captures the yarn on the spinning side, and a suction mouth that captures the yarn on the winding side. Each trapped yarn is guided to the yarn joining device, and the yarn joining operation is performed by the yarn joining device (see Patent Document 1 and Patent Document 2).

Further, this yarn splicing carriage is equipped with a package plate for separating the package from the winding drum, a reverse roller for rotating the package in the reverse direction, and the like. The suction mouth, the suction pipe, the package plate, and the reverse rotation roller are configured to be driven by separate cams, and these drive cams are provided on a common cam shaft. The cam shaft is driven by the rotation of a single cam motor. When the yarn splicing carriage performs the yarn splicing operation, the sensor first confirms that it has stopped at the spinning unit that requires the yarn splicing, and the cam motor is driven by the signal from this sensor. The suction mouth, the suction pipe, and the like are driven via each drive cam to perform the yarn splicing operation.
Japanese Patent Laid-Open No. 2001-40532, FIG. JP 2000-178841 A

Since the yarn splicing cart travels along a large number of spinning units, it must travel more quickly and smoothly. By the way, the suction mouth, the package plate, and the reverse rotation roller mounted on the yarn splicing carriage are members that perform a treatment on the package provided at the lower part (downstream side) of the spinning unit. It is provided close to the drive cam group provided at the lower part of the yarn splicing carriage. On the other hand, since the suction pipe turns to the vicinity of the yarn spinning part provided at the upper part (upstream side) of the spinning unit, its drive system, particularly the turning shaft, is provided at the upper part of the yarn splicing carriage. It is arranged at a position away from the drive system of the member that processes the package. Therefore, since the suction pipe is connected to the drive cam via a large number of link members, the weight of these link members is very heavy, which hinders the rapid traveling of the yarn splicing carriage.

Accordingly, the present invention provides a textile machine equipped with a yarn splicing cart that can reduce the weight of the splicing cart and improve its speed and smoothness by improving the drive means of the suction pipe mounted on the yarn splicing cart. I will provide a.

The textile machine according to the present invention includes a plurality of yarn processing units arranged side by side, and a spinning machine including a yarn splicing cart that can travel along each yarn processing unit. Supply-side yarn end catching means (suction pipe), winding-side yarn drawing means (package plate, reverse roller) for driving the winding package to draw out the yarn at the time of yarn splicing, and the winding drawn by the yarn drawing means A take-up side yarn end catching means (suction mouse) for catching a take-up side yarn, and a yarn splicing device for catching each guided means and connecting the guided yarns. The pipe is provided with a single drive means for driving between the catch position of the supply side yarn end and the guide position to the yarn splicing device.

Preferably, a detection means for detecting stoppage of the supply side yarn end catching means (suction pipe) to the guide position is provided, and a single drive means is controlled based on the detection of the detection means.

More preferably, the single drive means is a stepping motor.

According to the present invention, since the yarn splicing carriage is provided with a single drive means for driving the suction pipe, there is no need to provide a number of link members for connecting the suction pipe and the drive cam as in the prior art. The yarn splicing cart can be significantly reduced in weight, and therefore the yarn splicing cart can be run quickly and smoothly, and the efficiency of the splicing operation can be improved.

Also, means for detecting the stop of the suction pipe at the guide position is provided, and the drive means is controlled by this detection means. Therefore, if a deviation of the guide position due to the drive of the suction pipe is detected, a signal requesting maintenance is issued. This makes it possible to respond quickly to troubles. Further, by using a stepping motor as the driving means, the yarn splicing carriage can be made lighter and the cost of the apparatus can be reduced.

Hereinafter, a spinning machine according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an overall front view showing a spinning machine of the present invention. FIG. 2 is a cross-sectional side view of FIG. As shown in FIG. 1, the spinning machine includes a large number of spinning units (yarn processing units) 3, 3, 3... Arranged in parallel between a prime mover box 1 and a dust box 2. This spinning machine is provided with a rail 15 along each spinning unit 3, 3, 3..., And the yarn splicing cart T reciprocates in the left-right direction on this rail 15. The splicing cart T stops at the spinning unit 3 that requires the splicing and performs a splicing operation.

The spinning unit 3 includes a spinning unit including a draft roller 20 having a back roller 16, a third roller 17, a middle roller 18, and a front roller 19, an air jet nozzle 21, and the like. Then, the sliver S drawn from the sliver cane provided on the back of the machine base is supplied to the back roller 16, and the spun yarn Y is generated by the spinning unit. Further, the spinning unit 3 traverses the spun yarn Y to the take-up package 31 and the yarn feed roller 25 for drawing out the spun yarn Y formed and formed, the slab catcher 30 for detecting defects such as the thick yarn portion of the spun yarn Y, and the like. A winding unit 35 and the like for winding are also provided.

As shown in FIG. 2, the spinning unit 3 is arranged on a frame 4 formed in a U shape, and the yarn splicing cart T travels along the rail 15 in the internal space of the frame 4. It is configured. The yarn splicing carriage T includes a supply-side yarn end catching means (suction pipe) 5 for sucking and catching the spun yarn Y continuously supplied from the spinning section on the supply side, and a winding for sucking and catching the spun yarn Y of the package 31. A take-up yarn end supplementing means (suction mouth) 6 and a splicing device 7 for connecting the yarns Y captured by the suction pipe 5 and the suction mouth 6 are provided. A suction air flow is generated at the ends of the suction pipe 5 and the suction mouth 6 by a suction source (not shown) so that the yarn ends are sucked.

The package 31 is attached to a cradle 32 that can rotate around a rotating shaft 320. The package 31 abuts against a friction roller 33 that rotates in a certain direction at a regular time to take up the spun yarn Y, and a friction roller at the time of yarn splicing. It is comprised so that it may leave | separate from 33. Further, a package plate 8 that separates the package 31 from the friction roller 33 and a reverse roller 9 that reversely rotates the package 31 are provided below the yarn joining cart T. The suction mouth 6, the package plate 8, and the reverse rotation roller 9 are operated by a drive cam group 13. Here, the package plate 8 and the reverse rotation roller 9 are collectively referred to as a winding side thread drawing means. The package plate 8 and the reverse rotation roller 9 are for driving the package at the time of yarn joining, and for drawing the yarn on the winding side to the suction mouth 6. The winding side yarn drawing means is not limited to the one including the package plate 8 and the reverse rotation roller 9.

3 is a view showing the suction pipe, FIG. 3A is a perspective view, and FIG. 3B is a rear view as seen from the back side of FIG. 3A. As shown in FIG. 3, the suction pipe 5 is attached to an attachment member 151 fixed to the yarn splicing carriage T via a rotating shaft 152. The attachment member 151 is provided with a suction pipe 154, and the suction pipe 5 is connected to the suction pipe 154. As a result, a suction action from a suction source (not shown) can be generated at the tip 156 of the suction pipe 5 via the suction pipe 154. Further, a stepping motor 10 is provided below the attachment member 151, and a motor gear 110 that rotates by driving the motor 10 protrudes from the attachment member 151. A fan-shaped spur gear 153 is fixed to the suction pipe 5, and the spur gear 153 is engaged with the motor gear 110.

Accordingly, the spur gear 153 is rotated and the suction pipe 5 is rotated as the motor gear 10 rotates. 3B, the attachment member 151 is provided with a standby sensor 11 that detects the magnet 111 attached to the spur gear 153, and the sensor 11 detects a position where the suction pipe 5 is on standby. Further, a sensor 155 for detecting the yarn Y is provided in the vicinity of the suction pipe 154. With this detection sensor 155, it can be detected whether or not the suction pipe 5 has captured the yarn Y.

Next, the yarn joining operation of the yarn joining cart T will be described. FIG. 4 is a side view showing the operation of the suction pipe. FIG. 5 is a perspective view showing the drive cam group. FIG. 6 is a side view showing the operation of the package plate. FIG. 7 is a side view showing the operation of the suction mouse. FIG. 8 is a side view showing the operation of the reverse rotation roller. FIG. 9 is a flowchart showing the yarn splicing operation.

As shown in FIG. 9, when the slab catcher 30 detects a defect of the spun yarn Y and forcibly cuts the yarn Y, the spinning unit 3 in which the yarn break has occurred performs the splicing operation. A request signal is issued to perform (S11). As a result, the yarn splicing cart T travels to the spinning unit 3 where the yarn breakage has occurred, stops at a fixed position (S12), and starts the yarn splicing operation (S13). Then, the yarn splicing cart T performs the yarn splicing operation (S14), and resumes traveling when the yarn splicing is completed, or waits in a travelable state if there is no yarn splicing request (S15).

The operation of the suction pipe 5 will be described with reference to FIG. As described above, the suction pipe 5 is configured to turn around the shaft 152, and the spur gear 153 fixed to the suction pipe 5 is engaged with the motor gear 110 of the stepping motor 10. When the yarn splicing carriage T stops at the spinning unit 3 that requires the yarn splicing operation, the stepping motor 10 is driven, and accordingly, the spur gear 153 rotates from the two-dot chain line position 153a to the solid line position 153. At the same time, the suction pipe 5 turns from the two-dot chain line position 5 a to the solid line position (spinning side yarn catch position) 5. Thereby, the tip portion 156 which is the suction portion of the suction pipe 5 sucks and captures the yarn Y continuously spun from the air injection nozzle 21.

At the position where the suction pipe 5 captures the yarn Y, the motor gear 110 of the stepping motor 10 rotates in the reverse direction, and the suction pipe 5 turns to the two-dot chain line position (guide position to the yarn splicing device) 5a. Pull the yarn downward. The stepping motor 10 is controlled so as to stop when the sensor 11 detects the magnet 110 provided on the back surface of the spur gear 153, and is configured such that the suction pipe 5 always stands by at a predetermined position. . Then, the suction mouse 6 also turns to the two-dot chain line position 6a in a state where the yarn is captured, so that the yarn on the winding side is pulled upward. Accordingly, each yarn Y is guided to the front surface of the yarn splicing device 7, and the yarn splicing device 7 performs the yarn splicing operation. Here, when the suction pipe 5 and the suction mouth 6 both capture the yarn Y and return to the standby position, the yarn Y is guided to the yarn splicing device 7. Therefore, the standby position and the guide position are at the same position.

Accordingly, if the standby sensor 11 detects that the suction pipe 5 has once swung to the capture position and then returned to the standby position, it is considered that the yarn spun from the air injection nozzle 21 has been captured by the suction pipe 5. Can do. The position where the suction pipe 5 stands by is equal to the position where the captured yarn Y is guided to the yarn splicing device 7. Therefore, when the sensor 11 detects that the suction pipe 5 does not return to the standby position (guide position). It can be recognized that the suction pipe 5 is in an abnormal state in which proper yarn guidance to the yarn splicing device 7 is not performed.

The drive cam group 13 will be described based on FIG. As shown in FIG. 5, the cam motor 12 is driven, and the drive cam group 13 rotates. The drive cam group 13 is provided with a cam spur gear 130, and a cam shaft 135 is connected to the center of the cam spur gear 130, and a cam cam 153, a reverse roller cam 132, and a suction mouse are connected to the cam shaft 153. The cam 134 is fixed. The motor gear 120 of the cam motor 12 is engaged with the cam spur gear 130. As the motor gear 120 rotates, the cam spur gear 130 rotates and the cam shaft 135 rotates. 132 and 134 are configured to be driven. By driving the cams 131, 132, and 134, the winding side thread drawing means including the package plate 8 and the reverse rotation roller 9 and the suction mouth 6 are operated. Further, the shaft of the drive cam group 13 and the yarn splicing device 7 are linked, and the yarn splicing device 7 is operated by the rotation of the drive cam group 13, and the yarn splicing is performed at a predetermined timing.

The operation of the package plate 8 will be described based on FIG. The cam 131 operates the cam lever 183, and the package plate 8 is driven by the operation of the cam lever 183. The package 31 that contacts the friction roller 33 is configured to be separated from the friction roller 33 by driving the package plate 8. When the cam 131 is driven, the cam 131 rotates from the two-dot chain line position 131a to the solid line position 131. Since the cam lever 183 is biased upward by the spring 186, the boss 185 provided on the cam lever 183 is always in contact with the outer peripheral surface of the cam 131. As the cam 131 rotates, the boss 185 provided on the cam lever 183 moves, and the cam lever 183 rotates around the shaft 184 from the two-dot chain line position 183a to the solid line position 183. By rotation of the cam lever 183, the package plate 8 rotates from the two-dot chain line position 8 a to the solid line position 8 about the shaft 181 via the connecting lever 182. As a result, the package plate 8 moves the package 31 from the two-dot chain line position 31 a to the solid line position 31, separates the package 31 from the friction roller 33, and thus stops the rotation of the package 31.

Based on FIG. 7, the operation of the reverse roller 9 will be described. When the cam 132 is driven, the cam 132 rotates from the two-dot chain line position 132 a to the solid line position 132. Since the boss 195 provided on the cam lever 193 is in contact with the outer peripheral surface of the cam 132 at a fixed time by a spring 196, the boss 196 moves as the cam 132 rotates from the two-dot chain line position 132a to the solid line position 132. Then, the cam lever 193 rotates around the shaft 194 from the two-dot chain line position 193a to the solid line position 193. The rotation of the cam lever 193 causes the reverse rotation roller 9 to rotate from the two-dot chain line position 9 a to the solid line position 9 about the shaft 191 via the connecting lever 192. As a result, the reverse rotation roller 9 comes into contact with the package, rotates the package 31 in the opposite direction to the regular time, and pulls out the yarn Y wound around the package 31.

The operation of the suction mouse 6 will be described based on FIG. When the cam 134 is driven, the cam 134 rotates from the two-dot chain line position 134 a to the solid line position 134. The boss 165 provided on the cam lever 163 is in contact with the outer peripheral surface of the cam 134 at a fixed time by a spring 166. The cam lever 163 rotates from the two-dot chain line position 163 a to the solid line position 163 around the shaft 164 as it moves. With the rotation of the cam lever 163, the suction mouth 6 rotates from the two-dot chain line position 6 a to the solid line position 6 about the shaft 161 via the connection lever 162. Thereby, the suction mouth 6 sucks and captures the yarn Y drawn from the package 31 by the reverse rotation roller 9.

The yarn splicing operation in the embodiment of the present invention will be further described. FIG. 10 is a side view including a control block of the spinning machine. FIG. 11 is a flowchart showing the yarn splicing operation. FIG. 12 is a flowchart following FIG. FIG. 13 is a flowchart following FIG.

When the generated spun yarn Y has a defective portion such as a slab, the spun yarn Y is detected by the slab catcher 30 (S101), cut by the cutter, and the cut yarn Y on the package 31 side is wound around the package 31. Taken (S102). Accordingly, a defect detection signal from the slab catcher 30 is sent to the unit controller C1 (S102). With this signal, the unit controller C1 stops driving the single spindle drive motor 200 that drives the back roller 16 and the third roller 17 via the motor driver 201 (S103). As a result, the fiber bundle S1 is cut between the middle roller 18 that rotates on time and the stopped third roller 17. Further, the valve 215 of the air injection nozzle 21 is controlled, and the injection of compressed air from the air injection nozzle 21 is stopped (S103).

The air injection nozzle 21 can have a configuration disclosed in, for example, Japanese Patent Application Laid-Open No. 2001-40532, and includes a nozzle member and an auxiliary nozzle not shown. In a normal spinning state, compressed air is supplied from the auxiliary nozzle. The fiber bundle S1 is twisted by the compressed air from the nozzle member without being jetted. In the yarn splicing operation, compressed air is ejected from both the nozzle member and the auxiliary nozzle, and the yarn is spun. After the yarn joining cart T arrives at the yarn joining unit 3, the yarn joining control unit C2 drives the cam motor 12 (S104), and separates the package 31 from the friction roller 33 via the drive cam group 13.

The unit controller C1 drives the stepping motor 10 via the yarn splicing control unit C2, and turns the suction pipe 5 upward to the two-dot chain line position 5b (S105). Thereafter, the unit controller C1 drives the motor 200 again via the motor driver 201 to rotate the back roller 16 and the third roller 17. Compressed air is ejected from the auxiliary nozzle from not only the nozzle member but also from another compressed air supply source 216 through the valve 215 by the air injection nozzle 21 to perform yarn discharge spinning (S106). After a predetermined time has elapsed, the compressed air supply source 216 is controlled to stop air ejection from the auxiliary nozzle, and the unit controller C1 controls the motor driver 201 to rotate the single spindle drive motor 200 to normal rotation. (S107)

The suction pipe 5 captures the yarn Y generated by the yarn discharge spinning, then turns downward and stops in a standby state (S108). A little before this, the cam motor 12 causes the reverse rotation roller 9 to reversely rotate the package 31 and the suction mouth 6 positions the yarn Y from the package 31 upward. Thereby, the yarn Y from the spinning side and the winding side is guided to the yarn splicing device 7, and if the yarn catching on the winding side is confirmed by any means (S110), the rotating drive cam group 13 Thus, the yarn splicing device 7 is driven to join the two yarns Y, and the yarn splicing operation is completed (S111).

The above is the basic operation of the yarn splicing according to the present invention. However, when the yarn picking operation fails, the following operation can be realized by the configuration of the present invention. That is, when the suction pipe 5 cannot capture the yarn Y, the sensor 155 sends a yarn discharge spinning failure signal to the unit controller C1 (S109). The suction mouse 6 has already captured the yarn on the winding side and returned to the guide position for guiding the yarn to the yarn splicing device 7, and the package plate 8 and the reverse rotation roller 9 have also returned to their original positions. If the success of the yarn catching is confirmed (S120), the unit controller C1 sends a signal to the yarn splicing control unit C2 according to the signal, interrupts the rotation of the cam motor 12, and returns the members 6, 8, and 9 to the original state. The suction mouse 6 maintains the state where the yarn Y on the winding side is guided to the yarn splicing device 7 (S121), the supply of the sliver S is once stopped, and the valve 215 is used for air injection. The nozzle 21 is stopped (S122). Next, after the suction pipe 5 is swung to the capture position again (S123), the supply of compressed air is resumed by the valve 215 and the compressed air supply source 216, and the unit controller C1 controls the motor driver 201. Then, control for resuming the yarn output spinning is performed (S124). Then, after a predetermined time has elapsed, the air ejection from the auxiliary nozzle is stopped (S125). Until the yarn Y is successfully captured by the sensor 155 (S127), the stepping motor 10 is driven and the suction pipe 5 is driven to rotate while repeating yarn discharge spinning (S122 to S126). When the sensor 155 detects that the suction pipe 5 has captured the yarn Y, the unit controller C1 sends a signal to the yarn splicing control unit C2, re-drives the cam motor 12 (S128), and operates the yarn splicing device 7. By doing so, both the yarns Y are spliced (S111). If failure in catching the yarn on the take-up side is confirmed (S110, S120), the yarn splicing is not performed and the operation is finished as it is, and operator maintenance is requested.

Therefore, even if the yarn picking fails, only the suction pipe 5 can be driven without re-driving the package plate 8 and the like, so the load on the cam motor 12 is reduced without repeating unnecessary operations. In the above-described embodiment, the drive is transmitted not by the single spindle drive motor 200 but by the line spindle drive common to all spindles, and may be connected via a clutch. Further, the air injection nozzle 21 does not include a nozzle member and an auxiliary nozzle, and is constituted by two spinning nozzles that generate swirling airflows in opposite directions, and the present invention may be applied to one that generates a bound spun yarn.

The suction pipe 5 has a role of catching and guiding the yarn in the turning operation, and does not require such a large torque. Therefore, the drive means can be a small capacity motor, and a low-cost system can be realized with a stepping motor such as 10. In addition, since the number of members connected to the cam motor 12 can be reduced as compared with the prior art, the load on the cam motor 12 can be reduced.

The yarn detection sensor 155 is not limited to the above configuration as long as it detects the yarn discharge on the spinning side.

FIG. 1 is an overall front view showing a spinning machine of the present invention. FIG. 2 is a cross-sectional side view of FIG. FIG. 3A is a perspective view showing the suction pipe, and FIG. 3B is a rear view as seen from the back side of FIG. 3A. FIG. 4 is a side view showing the operation of the suction pipe. FIG. 5 is a perspective view showing the drive cam group. FIG. 6 is a side view showing the operation of the package plate. FIG. 7 is a side view showing the operation of the suction mouse. FIG. 8 is a side view showing the operation of the reverse rotation roller. FIG. 9 is a flowchart showing the yarn splicing operation. FIG. 10 is a side view including a control block of the spinning machine. FIG. 11 is a flowchart showing the yarn splicing operation. FIG. 12 is a flowchart following FIG. FIG. 13 is a flowchart following FIG.

Explanation of symbols

3 Spinning unit (yarn processing unit)
5 Suction pipe 6 Suction mouse 7 Yarn splicing device 8 Package plate 9 Reverse roller 10 Stepping motor 11 Standby sensor 12 Cam motor 13 Drive cam group 20 Draft part 21 Air injection nozzle 22 Nozzle sensor 31 Package 32 Cradle 33 Friction roller 110 Stepping motor 10 Gear 111 Magnet 120 Cam motor gear 153 Fan spur gear 155 Yarn detection sensor T Yarn splicing carriage Y Spun yarn

Claims (3)

In a textile machine having a plurality of yarn processing units arranged side by side and having a yarn splicing cart capable of traveling along each of the yarn processing units, the yarn splicing cart captures a supply-side yarn end. A winding side yarn pulling means for driving the winding package during yarn splicing to pull out the yarn, a winding side yarn end catching means for catching the winding side yarn drawn by the yarn drawing means, and A yarn splicing device that catches the guided yarns by the catching means, and drives the supply-side yarn end catching means between a catching position of the supply-side yarn end and a guide position to the yarn splicing device. A textile machine provided with a yarn splicing carriage characterized by comprising a single drive means for causing The textile machine according to claim 1, further comprising a detecting unit that detects a stop of the supply side yarn end capturing unit at the guide position, and controlling the single driving unit based on the detection of the detecting unit. Textile machine equipped with a characteristic yarn splicing cart. The spinning machine provided with the yarn splicing cart according to claim 1 or 2, wherein the single driving means is a stepping motor.

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