JPS6290333A - Automatic ending and doffing apparatus - Google Patents

Abstract

PURPOSE:To provide the titled apparatus capable of ending and doffing and having a truck traversing along a spinning frame and furnished with a full bobbin detecting means, a doffing means, an empty bobbin supplying means and an ending means. CONSTITUTION:A truck 13 traverses along the length of a spinning frame furnished with plural yarn-forming apparatuses and plural winding apparatuses to directly wind the yarn spun from the yarn-forming apparatus. The truck 13 is furnished with a means 30 to detect the full bobbin 50 of the winding apparatuses 8-10, means 24-28 to doff a full bobbin package 51, a means to attach an empty bobbin to a winding means, a means to thread a spun yarn to the attached empty bobbin and to form a punch and a tail and a means to end the yarn spun from a spinning means with a yarn taken out of the winding means in the case of end-breakage.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an automatic splicing and doffing device for a single spinning machine that directly winds yarn spun from a yarn forming device.

Generally, in spinning MPs and the like in which a large number of spun knits are arranged in parallel, when a preset amount of yarn has been wound, a doffing cart and a splicing cart are run along the longitudinal direction of the spinning machine, While doffing a full package, a bobbin on which a small amount of yarn has been wound in advance is supplied by a bobbin supply device. When the bobbin is fed to the winding section,
The suction pipe of the yarn splicing truck installed in parallel with the doffing truck sucks the yarn spun from a yarn forming device such as an air injection nozzle and the yarn pulled out from the bobbin and sends it to the yarn splicing device. The yarn is conveyed and spliced, and the winding section is started to wind the yarn spun from the yarn forming device onto the bobbin.

A spinning machine equipped with a doffing and yarn splicing trolley having such a structure is described, for example, in Japanese Patent Application Laid-open No. 15524/1983.

However, in a device configured to run such a doffing and yarn splicing cart, after the doffing operation is performed, the yarn that has been wound on the bobbin in advance and the yarn that has been spun from the yarn forming device are It is necessary to move the trolley in order to splice the yarn, which complicates the control circuit and makes it difficult to wrap the yarn in advance.
However, a bobbin must be prepared, and a winder is required for this purpose. Further, there is a problem in that the quality of the thread that has been wound around the bobbin in advance and the thread that is wound thereon is different, causing uneven dyeing, uneven weaving, etc. in the post-processing process.

The present invention solves the above-mentioned problems and provides a thread splicing system that can reliably perform operations such as hoisting a full bobbin, supplying an empty bobbin, bunching the thread, forming a tail, and splicing the thread using a compact device. The present invention provides a doffing device.

(Means for Solving the Problems) That is, the present invention provides a spinning machine that can run freely along the longitudinal direction of a spinning machine that directly winds yarn spun from a plurality of yarn forming devices onto each winding device. A trolley provided with a means for detecting a full package, a means for doffing a full package, a means for supplying an empty bobbin, a means for threading the spun yarn on the empty bobbin, bunching, and To provide an automatic yarn splicing and doffing device which is provided with a means for forming a tail and a means for splicing a yarn spun out at the time of yarn breakage and a yarn pulled out from a package.

(Example) The configuration of an automatic yarn splicing doffing device of the present invention will be explained based on the drawings.

1 is a gear end, and 2 is an A end.

This is a machine stand installed between the 313L gear end 1 and the off end 20. Reference numeral 4 denotes a drafting device consisting of a front roller, a second rotor, a back roller, etc., which drafts the supplied fiber bundle. Reference numeral 5 denotes a yarn forming device composed of a suction, false twisting nozzle, a rotating rotor, etc., and is adapted to form a spun yarn from a van bundle. Reference numeral 6 denotes a pull-out roller, which is composed of a driving rotation roller and a nip roller shorter than the roller, and is configured to convey the yarn spun from the yarn forming device 5 at a predetermined speed. Reference numeral 7 denotes a rotating drum having a yarn guide groove on its outer peripheral surface, which traverses the yarn and rotates the bobbin 50. Reference numeral 8 designates a cradle in which a holder 9 that holds a bobbin 50 is rotatably mounted and has a thread locking pawl 9'. The bobbin 50 is brought into contact with the rotating drum 7 with a predetermined surface pressure. Reference numeral 11 denotes a separation mechanism provided near the rotating drum 7, which is inserted between the rotating drum 7 and the package to separate the package from the rotating drum. Reference numeral 12 denotes a rail installed along the machine base 3, on which the yarn splicing and doffing device 13 runs.

Reference numeral 15 denotes a frame forming the yarn splicing and doffing device 13. Wheels 14 are attached to the lower end of the frame, and the frame is moved by a drive device (not shown) and stopped at a predetermined position.

Reference numeral 16 denotes an eleventh yarn suction pipe, which is rotatably mounted on the frame 15 and is adapted to suck the yarn spun from the yarn forming device 5. In addition, a slit 16' is formed in the first upper thread suction pipe 16 along the longitudinal direction of the pipe, and the thread being sucked into the pipe moves in a direction perpendicular to the longitudinal direction of the pipe. ′ to exit the pipe. 17 is a second needle thread suction pipe, which is attached to the frame 15 so as to rotate in an inclined state, and sucks the thread from the outlet of the first needle thread suction pipe 16;
The yarn is conveyed to the yarn storage device 23 or to the yarn transfer position. Reference numeral 18 denotes a thread hook arm having a bunch-forming yarn locking portion 18', which is rotatably mounted on the frame 15 and runs between the pull-out roller 6 and the second needle thread suction pipe 17. Hook the yarn and chuck 9 of cradle 8.
It is adapted to be engaged with the thread locking pawl 9'. Reference numeral 19 denotes a thread extrusion member which is movably attached to the arm 18 and is configured to push out the thread engaged with the thread locking portion 18'. 20 is a lower thread suction pipe;
It is rotatably attached to the frame body 15 and is designed to pull out the yarn from the package 51. Reference numeral 21 denotes a lower thread scooping arm, which is rotatably mounted on the frame 15 and scoops up the thread between the package 51 and the lower thread suction pipe 20 and conveys it to the thread splicing device 22. The yarn splicing device 22 is configured to splice the upper yarn from the yarn forming device 5 and the lower yarn pulled out from the package 51 when a yarn breakage occurs.

The yarn accumulator 23 is connected to a suction device (not shown) to suck the yarn and perform the splicing operation I1. It is attached to / so that a constant tension is applied to j. 2/1 is a cradle operating arm that pushes down the cradle 8 and cuts the package 51 from the rotating drum 7, and also moves the cradle 8 to the bobbin 5.
Press outward in the longitudinal direction of 0 to open 1! 11 out of 50 contests will be held. 25 is frame 26
It is a drive 11-ra for the package 51 attached to the package 51, and it contacts the package 51 during the splicing operation and rotates it in the opposite direction to pull out the yarn for splicing, and also rotates the package 51 at high speed after the splicing. υThere is one piece to wind up the yarn that has accumulated during splicing. 27 is a chuck attached to the cylinder 280 lot, which grips the empty bobbin and transports it to the holder 9 of the cradle 8.
: Sea urchins are turning. The cylinder 28 is attached to a frame 26 on which the drive roller 25 is mounted, and is configured to rotate δ. In addition, the chuck 27 is configured to grip the bobbin by forcibly opening and closing its claws using a drive device,
Alternatively, it is possible to use a structure in which the J-ribobin is held by two thin plates that utilize elastic force. Reference numeral 29 denotes a first lamp, which is turned on based on a full winding signal or a thread breakage signal. 30.31 is frame 15
The first and second detectors are installed at predetermined positions of the first and second detectors.
When lighting of the lamp is detected, an activation signal is sent to a control device (not shown). Also, when the first detector 30 is activated, the brakes are applied to decelerate, and then the second detector 3
1 is activated, the drive device is controlled so as to instantly stop it at a predetermined position.

32 is a second lamp attached to the frame 15, and is used when replacing a full package with an empty bobbin and restarting yarn winding, or when yarn breakage processing is performed and yarn winding is restarted. In this case, the light is turned on based on these operation end signals. 33 is a third detector installed on the machine base 3, and when it detects lighting of the second lamp 32, it sends a signal to the control device (14 not shown) to start the draft device 4, yarn forming device 5, etc. It is now possible to send A bobbin supply box 34 stores a plurality of empty bobbins, and is installed below the frame 26. 35 is a pedestal for the package 51 installed below the cradle 8.

It is preferable that each of the above-mentioned operating parts be arranged so that threading and splicing operations can be performed on the same vertical line.

A doffing operation using the automatic yarn splicing doffing device configured as described above will be explained.

When the yarn of the preset product is wound onto the bobbin of the cradle 8 and becomes fully wound, a full winding signal is transmitted from the control device (not shown) and the first lamp 29 is turned on.
The device 4 to the trough 1 and the yarn forming device 5 are stopped to stop spinning the yarn, and at the same time, the separating mechanism 11 is activated to separate the full package 51 from the rotating drum 7 and stop the winding operation (first step). Figure 4-1). The automatic yarn splicing and doffing device 13, which runs periodically in this state, moves to the fully wound weight, and when the first detector 30 detects the lighting of the first lamp 29, it is decelerated, and then the second detector When detected at 31, it is stopped at a predetermined doffing position. In this state, start the EK frying operation.

First, a doffing operation start signal is transmitted from a control device (not shown), and the cradle operating arm 24 is activated to come into contact with the cradle 8 and push it down (FIG. 4-2). When the cradle 8 moves to the doffing position, one side of the cradle is moved outward from the bobbin to remove the full package 51 from the holder 9 and drop it onto the pedestal 35 (FIG. 4-3).

On the other hand, while the automatic splicing and doffing device 13 is running, the cylinder 27 operates to project the rod, and the empty bobbin 50 in the bobbin supply box 34 is gripped by the chuck 27. Therefore, when the package 51 is taken out,
The frame 26 is actuated to rotate the cylinder 28 from a vertical position to a substantially horizontal position for supplying the bobbin, and the cylinder 28 is actuated to project the rod and chuck 27.
The bobbin 50 held in the holder 9 of the cradle 8
position (Figs. 4-4). Next, when the cradle operating arm 24 is activated to move the cradle 8 inward in the longitudinal direction of the bobbin and the holder 9 holds the bobbin 50, the cylinder 28 is activated to retract the chuck 27 and return it to the standby position. Rotation moves cylinder 28 to a vertical position. In this operation, when the chuck 27 retreats, since the bobbin 50 is held by the holder 9, the chuck 27 opens outward and the bobbin 50, which has been gripped by elastic force, is released from the chuck 27.

When the empty bobbin 50 is held in the holder 9 by the above operation, the cradle operating arm 24 and the separation mechanism 11 return to the standby position, and the empty bobbin 50 is brought into contact with the rotating drum 7 (FIGS. 4-5) for doffing operation. end.

Next, I will explain the operation of the thread hook.

When the full package 51 is doffed in each of the above operations and the empty bobbin 50 is supplied, the second lamp 32 is turned on based on the yarn winding start signal, which is detected by the third detector 33. When detected by
The suction port of the needle thread suction pipe 16 is moved to the spinning section of the yarn forming device 5, and the suction port of the second needle thread suction pipe 17 is moved to the exit section of the first needle thread suction pipe 16, and the spun yarn is Aspirate the stripes (Figure 5-1). Subsequently, when the second needle thread suction pipe 17 that has sucked the yarn is rotated to the yarn passing position, the yarn passes through the slit 16' of the first needle thread suction pipe 16 and moves out of the pipe. It is moved to the yarn passing position while being in contact with the driving rotation roller 6. Second
．． When the F-thread suction pipe 17 moves to the yarn passing position, the arm 18 rotates and the second upper thread suction pipe 17 moves in an inclined state, so that the thread hook is nipped between the pull-out rollers 6 (the second upper thread suction pipe 17 moves in an inclined state). Figure 5-2). Second needle thread suction pipe 17
When the arm 18 moves to the yarn passing position, the arm 18 rotates and connects the suction port of the second upper thread suction pipe 17 and the pull-out roller 6.
The thread located between the threads is held and conveyed to the holder 9 of the cradle 8, and is hooked onto the thread locking claw 9' (Figs. 5-3 and 7-1). When the bobbin 50 rotates in this state, the yarn is wound around the end of the bobbin 50 with the yarn path regulated by the yarn locking portion 18', forming a bunch (5th-
4 and 7-2), the thread on the side being sucked by the second needle thread suction pipe 17 is cut. Then, the yarn pushing member 19 is operated to release the yarn engaged with the yarn locking portion 18' (FIGS. 5-5 and 7-3). Then,
The yarn moves toward the center of the bobbin due to its own tension, forms a tail, and then engages with the yarn guide groove of the rotating drum 7 and is wound up while being traversed (FIGS. 5-6).

After releasing the yarn, the arm 18 of the threader returns to the standby position, and the threader ends the operation.

Next, the yarn splicing operation will be explained.

When a yarn breakage occurs and a yarn breakage detector (not shown) is activated, the control device (not shown) temporarily stops counting the number of full windings, stops the rotation of the draft device 4, and activates the yarn forming device. The supply of 141111 bundles to 5 is stopped. Next, the separating mechanism 11 is operated to separate the package 51 from the rotating drum 7 (FIG. 6-1). In this state, the cradle operating arm 24 operates and is stopped and fixed at a position where it contacts the cradle 8. Next, the first needle thread suction pipe 16,
The second needle thread suction pipe 17 rotates, and the first needle thread suction pipe 16 moves to the outlet of the thread forming device 5, and the second needle thread suction pipe 17 moves to the outlet of the first needle thread suction pipe 16. (Figure 6-2). Next, the draft device 4 is started based on the yarn splicing operation start signal, and yarn is spun out from the yarn forming device 5 and sucked into the above-mentioned pipes 16 and 17. At this time,
The separation mechanism 11 returns to the standby position.

On the other hand, the frame 26 is activated and the driving roller 25 is brought into contact with the package 51 to reversely rotate the package 51 at a preset speed, and the bobbin thread suction pipe 20 is activated to open a suction port near the package 51. Moved (6th
When the end of the thread is sucked from the package 51, it returns to the standby position (Fig. 6-3).

When the spun yarn is suctioned by the second needle thread suction pipe 17 through the first needle thread suction pipe 16, the second needle thread suction pipe 17 is operated and moved to the yarn passing position. At this time, the yarn passes through the slits 1-16' of the first ten yarn suction pipes 16 and exits the pipe, and then passes through the yarn accumulator 23 and is hooked up to the nip portion of the drawer row 56. and is engaged with the splicing device 22 (Fig. 6-3). Then, the bobbin thread scooping arm 21 operates, holds the thread pulled out from the package 51, engages the thread splicing device 22 (Fig. 6-4), and returns to the standby position 4; , drive row 5
25 to stop drawing out the yarn. When the upper thread from the yarn forming device and the lower thread from the package are engaged with the splicing device 22, the splicing device 22 is activated to splice the yarns. At this time, the yarn that is subsequently spun from the yarn forming device 5 is sucked into the yarn storage device 23 and stored. As soon as the yarn splicing operation is interrupted, the drive roller is rotated at high speed, and the yarn accumulator 2
3. Wind up the yarn accumulated in the package 51 (6th
-5 figure). When there is no yarn in the yarn storage device 23, the frame 26 operates to return the drive roller 25 to the standby position.
The cradle operating arm 24 is returned to the standby position together with the reel, the package 51 is brought into contact with the rotating drum 7, and the yarn that is subsequently sent out is wound up (Fig. 6-6) to complete the splicing operation.

(Effects of the Invention) As described above, the present invention provides a spinning machine that is movable along the longitudinal direction of a spinning machine that directly winds yarn spun from a plurality of yarn forming devices onto each winding device. A means for detecting a full package, a means for doffing a full package, a means for supplying an empty bobbin, and a means for threading the yarn spun on the empty bobbin, bunching, and tailing the bobbin. The following effects can be achieved by providing a means for forming a yarn and a means for joining the yarn spun out at the time of yarn breakage and the yarn pulled out from the package.

(1) Operations such as doffing a package, supplying an empty bobbin, threading, and splicing can be performed simply by moving the splicing doffing device to a predetermined position. (2) Since there is no need to prepare a bobbin in advance for winding the yarn, there is no need for a winder for winding the yarn.

(3) There is no need for yarn splicing work during doffing operations, and the cart can be moved easily! Since the doffing and threading operations are performed simultaneously, the doffing operation time can be shortened and the control circuit can be simplified.

(4) Since the yarn forming the bunch and tail is the same as the winding yarn, uneven dyeing, uneven weaving, etc. in the final T process can be eliminated.

[Brief explanation of drawings]

Fig. 1 shows an embodiment of a spinning machine equipped with a splicing and doffing device of the present invention. 1 is a schematic front view. FIG. 2 is an enlarged view taken along the Z arrow in FIG. 1. FIG. 3 is a view taken along the Y arrow in FIG. 2. FIG. 4 is a schematic diagram showing the doffing operation. FIG. 5 is a schematic diagram showing the operation of the thread hook. FIG. 6 is a schematic diagram showing the yarn splicing operation. FIG. 7 is a schematic diagram showing the details of the thread hooking operation. 3: Machine stand 4 Draft device 5: Yarn forming device 6: Drawer (no roller 7: Rotating driver 8 8:
Cradle 9: Holder 11: Separation mechanism 13: Yarn splicing doffing device 15: Frame 16: First needle thread suction pipe 17:
2nd yarn suction pipe 18: yarn U1 arm 19: yarn extrusion member 20:
Lower thread suction pipe 21: Lower thread scooping arm 22: Thread splicing device 23: Yarn storage device 24: Cradle operating arm

Claims (1)

[Claims] A means for detecting a full spindle is provided on a cart movable along the longitudinal direction of a spinning machine machine that directly winds yarn spun from a plurality of yarn forming devices onto each winding device. A means for doffing the winding package, a means for supplying an empty bobbin, a means for threading the spun yarn onto the empty bobbin to form a bunch and a tail, and a yarn spun at the time of thread breakage. An automatic yarn splicing and doffing device characterized in that a means for splicing yarn pulled out from a yarn and a package is provided.