JPH0518931B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a double twister yarn feeding and conveying system.

[Prior Art] A double twister applies a double twist to a yarn pulled out from a yarn supply package supported by a spindle through its center hole, and then winds the yarn onto a paper tube supported by a cradle arm. It is designed to form a take-up package. When the paper tube has wound up all the yarn in the yarn supply package and the yarn supply package is full, replace the empty yarn supply package with a full yarn supply package (yarn supply exchange), and then rewind from that yarn supply package. Pull out the thread end (take out) and insert it into the center hole (thread threading), remove the full winding package from the cradle arm, support a new paper tube on the cradle arm (dolphing), and insert it into the paper tube. The end of the yarn pulled out from the yarn supply package must be fixed (threaded). Conventionally, these operations have been performed exclusively by hand, which is time-consuming.

However, due to high-mix, low-volume production, tofu-age,
Nowadays, the frequency of operations such as yarn feeding exchange has increased, and automation of the above operations has been desired in order to reduce labor and improve productivity.

Therefore, the applicant has proposed replacing the yarn feeding package,
We have previously filed an application for a double twister processing robot that can automatically perform threading, threading, doffing, and threading, reducing labor and improving productivity (Japanese Patent Application No. 1-63857).

[Problems to be Solved by the Invention] However, in the above-mentioned robot, since the robot performs the feeding and threading, the structure is complicated, and the yarn feeding package that fails to be fed (misplaced yarn feeding package) is also transferred to the spindle of the unit. Since the threads are fed, if a package is mislead, threading cannot be done and the operator has to wait for processing, which may not improve processing efficiency.

Therefore, the purpose of the present invention is to solve the above problems,
It is an object of the present invention to provide a double twister yarn feeding and conveying system that can simplify the structure of a robot and improve processing efficiency without feeding mislead packages to the spindle of a unit.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a conveyor for conveying a yarn feeding package along a plurality of double twister units arranged in parallel, and a conveyor for conveying a yarn feeding package along a plurality of double twister units arranged in parallel, and a A thread pulling device is provided for inserting the thread end pulled out from the thread layer surface of the thread package into its center hole.

[Function] The yarn feeding package fed from the winder etc.
After the thread end is pulled out from the surface of the yarn layer by the threading device and inserted into the center hole, it is fed to the unit by the conveyor.

Therefore, the robot only needs to replace its yarn feeding package with the empty yarn feeding package on the spindle of the unit, and since the yarn end is inserted into the center hole in advance, threading can be easily carried out on the unit side. This eliminates the need for a spindle feed mechanism and a thread threading mechanism, thereby simplifying the structure of the robot.

In addition, processing efficiency is improved because it is no longer necessary to carry out picking on the robot or to feed mis-picked packages to the spindle of the unit and wait for the operator to process them.

[Example] Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

The first diagram shows the double twister yarn feeding and conveying system.
In the figure, 1 is a yarn feeding package production department such as a spinning frame, a winder, or a yarn doubling machine that produces yarn feeding packages, and the yarn feeding package 3 is produced by a plurality of units 2 constituting this yarn feeding package production department 1. It is becoming more and more common. In this embodiment, a special type of spinning machine is used as the yarn feeding package production section 1, which spins and combines two yarns. A plurality of double twisters 4 are provided adjacent to the yarn feeding package production section 1. The double twister 4 is made up of a plurality of units 5 arranged side by side and back to back, and in the illustrated example, there are four rows of double twisters 4.
It is shown.

Each double twister 4 is provided with a conveyor 6 along the unit 5 for supplying the yarn supply packages 3 to the unit 5. This conveyor 6 consists of a common circulation conveyor 7 arranged at one end of the double twister 4, and a branch conveyor 8 branched from this circulation conveyor 7 so as to circulate around each double twister 4, both of which are formed by a belt conveyor. ing. Each double twister 4 is provided with a robot 9 that runs along the unit 5, and as described later, the robot 9 connects the actual yarn package 3A on the diverter conveyor 8 and the empty yarn package 3B of the unit.
It has come to be exchanged with Note that since the empty yarn package (empty bobbin) 3A is discharged onto the diversion conveyor 8 and from the diversion conveyor 8 to the circulation conveyor 7, there is no actual Yarn supply package 3
A sorting and supplying mechanism (not shown) is installed that sorts only A and supplies it to the diverter conveyor 8.

The circulating conveyor 7 is provided with a feeding device 11 for feeding the yarn package 3 supplied from the yarn package production section 1 by the supply conveyor 10. Specifically, as shown in FIG. 2, a U-shaped conveyance path 12 is connected to the circulation conveyor 7, and an unfilled yarn is fed to this conveyance path 12 by a sorting and feeding mechanism (not shown) installed at the input end of the conveyance path 12. Only the package 3B is selected and supplied. In the conveyance path 12, an empty yarn package extraction device 13, an actual yarn package supply device 14, and a feed device 11 are installed in this order from the upstream side.

As shown in FIG. 5, the yarn supply package 3 is formed by winding yarn around a cylindrical bobbin 15 to form a yarn layer 16, and is inserted into a peg 19 of a conveying tray 18 via an adapter 17. The transport tray 18 is formed in a hollow shape with an open bottom, and the pegs 19 are formed with through holes 19a. The adapter 17 is formed into a hollow cylindrical shape that can be fitted into the center hole of the yarn supply package 3, and has a flange portion 17a at its lower end that locks the end of the bobbin 15 of the yarn supply package 3.
is formed. Furthermore, a top cap part 17b is integrally formed at the upper end of the adapter 17 to guide the yarn end Y into the adapter 17, and the top cap part 17b has a capsule-shaped structure that is freely retractable and has a built-in spring 20a shown in FIG. A tensioner 20 is installed to apply a predetermined tension to the traveling system while the unit is in operation.

The empty yarn package extraction device 13 is configured to pick up an empty yarn package 3B that is inserted onto a conveyance tray 18 via an adapter 17, as shown in FIG. 3, for example.
It consists of a belt conveyor 21 located on one side of the empty bobbin 15 and arranged in the vertical direction, and a guide plate 22 arranged opposite to the belt conveyor 21 and having an introduction lever 22a at the lower end. When the empty bobbin 15 is pinched between the belt conveyor 21, the empty bobbin 15 is extracted from the adapter 17, and is also pinched between the guide plate 22 and the belt conveyor 21 and transported upward.

The yarn package supply device 14 is constructed by disposing the delivery end of the supply conveyor 10, which is a belt conveyor, above the conveyance path 12, as shown in FIG. 4, for example. When the yarn feeding packages 3 that are placed and conveyed so as to match fall from the discharge end along the guide plate 23, they fit into the adapter 17 of the conveyance tray 18 waiting below. There is.

As shown in FIG. 5, the pick-up device 11 includes a drive roller 24 that contacts the outer periphery of the conveyance tray 18 and rotates the yarn feeding package 3 in the direction of unwinding the yarn ends;
A suction pipe 25 is disposed on one side of the yarn supply package 3 and has a suction slit 25a that suctions the yarn end and guides it across above the center hole of the yarn supply package 3; A cutter 26 for cutting the yarn end Y guided upward to a predetermined length, and a suction port 2 for the cutter 26 below the conveyance path 12.
7, and the through hole 1 of the transport tray 18
It mainly consists of a suction source (not shown) that suctions the inside of the adapter 17 through the adapter 9a and suction-inserts the cut yarn end Y into the adapter 17.

On the other hand, the unit 5 of the double twister 4 is the seventh
As shown in the figure, the spindle 28 vertically supports the yarn feeding package 3 together with the adapter 17 below, and the cradle arm 3 horizontally supports the paper tube 29 above.
0, the yarn Y pulled out from the yarn feeding package 3 is passed through its center hole, guided upward while being double twisted, and wound around a paper tube 29 that is rotationally driven by a rotating drum 31 to form a winding package 32. I'm starting to do that. Above the yarn supply package 3, a snell wire 33 for guiding the yarn Y, a drop wire 34 for detecting the presence or absence of the yarn Y, a yarn guide roller 35, and a feed roller 36 are arranged in this order. Further, a plurality of paper tubes 29 are provided above the cradle arm 30.
A stocker 37 is attached which accommodates the following.

A carry-out conveyor 38 for carrying out the doffed winding package 32 is arranged behind the rotating drum 31, and the above-mentioned diverting conveyor 8 is arranged in front of the spindle 28. As shown in FIG. 9, this diverter conveyor 8 includes an endless belt 39 on which the conveying tray 18 is placed and conveyed, and this belt 39 and the conveying tray 18.
A guide frame 40 is provided for guiding.

Rails 4 that support the robot 9 in a freely movable manner are installed at the upper and lower parts of the unit 5 constructed as described above.
2 and 42 are attached to the robot 9. An upper wheel 43 that engages with these rails 42 and 42, and a lower wheel 44 having a drive device 44a are attached to the robot 9. The robot 9 detects the unit 5 capable of doffing and stops, and as shown in FIG. ing. This locking mechanism 45 includes a cylinder 46 (see FIG. 9),
Attached to the tip of the piston rod 46a,
It mainly consists of a V-shaped tray stopper 47 that locks the base end of the peg of the transport tray 18 from the side.

A temporary holding peg 49 for temporarily placing the yarn feeding package 3 is attached to a table 48 in the center of the robot 9, and a left inner wall 50, which is formed upright on the left side of the table 48, is used for operations such as changing the yarn feeding. An arm 51 is attached so that it can move up and down and up and down. On the outside of the left inner wall 50 is a screw rod 52 which is rotatably driven by a belt drive.
A guide rod 53 is provided in an upright manner, and a lifting block 54 that is raised and lowered by the rotation of the screw rod 52 is supported.
5 is rotatably supported via a bearing 56. A vertical slit 57 through which a bearing 56 moves up and down is formed in the left inner wall 50, and a stopper 58 is attached to the bearing 56 to lock the rear upper surface of the operating arm 51 and horizontally support it. The operating arm 51 is formed in such a length that its tip is positioned above the spindle 28 when it is in a horizontal state.

In addition, the front lower surface of the operating arm 51 that descends in a horizontal state is locked to the left inner wall 50 so that the operating arm 5
A stopper 59 for raising the robot 1 is attached so as to be freely protrusive and retractable by a drive mechanism (not shown), and by raising and retracting the operating arm 51, the operating arm 51 does not interfere with the unit 5 when the robot 9 moves.

The operating arm 51 consists of a box-shaped frame, and a chuck 60 for gripping the top cap portion 17b of the yarn feeding package 3 is provided on one side of the operating arm 51 so as to be slidable along the longitudinal direction. This chatka 60
For sliding operation, a screw rod 62 having a motor 61 at one end is supported in the frame along the longitudinal direction.
The moving block 6 is moved by its rotation.
3, the chuck 60 is supported.
To replace the yarn feed, as shown in FIG. 9, the actual yarn feed package 3A is moved from the peg 19 of the transport tray 18 to the temporary peg 49 by opening/closing and sliding the chucker 6 and raising and lowering the operating arm 51 (), and then The empty yarn package 3B is transferred from the spindle 28 to the peg 19 of the transport tray 18 (), and then the actual yarn package 3A is transferred from the temporary peg 49 to the spindle 28 ().

In addition, a suction arm 64 is attached to the tip of the operation arm 51 to suck and hold the threaded end when threading the actual yarn supply package 3A.
A telescoping arm 65 for restoring the position is telescopically attached via a cylinder 66. Furthermore, a thread guide piece 67 is provided on the telescopic arm 65 in a protruding manner to guide the thread connected between the suction arm 64 and the actual thread feeding package 3A so as to hang it over the Snell wire 33, thread guide roller 35, etc. during thread threading. . Furthermore, the robot 9 is provided with a doffing mechanism 68 for removing the full winding package 32 from the cradle arm 30 and discharging it onto the carry-out conveyor 38, and for supporting a new paper tube 29 on the cradle arm 30.

Next, the operation of the embodiment will be described.

Yarn supply packages 3 (combined yarns in the embodiment) produced in the yarn supply package production section 1 are conveyed to a pick-up device 11 by a supply conveyor 10 . In this case, the conveyance tray 18 in which the empty yarn package 3B after the yarn feeding exchange has been inserted has already been introduced into the conveyance path 12 of the pick-up device 11, and first, the empty yarn package extraction device 13 is placed on the conveyance tray 18. The empty bobbin 15 is removed from the adapter 17, and then the yarn feeding package feeding device 14 is connected to the feeding conveyor 10.
The yarn feeding package 3 transported by the above is fitted and attached to the adapter 17 from which the empty bobbin 15 has been removed. Then, the pick-up device 11 sucks and pulls out the yarn end Y from the yarn layer surface 16 of the attached yarn feeding package 3 through the suction slit 25a of the suction pipe 25, and the yarn end Y is cut into a predetermined length by the cutter 26. After cutting the yarn with the suction flow, the yarn end Y
into the center hole (inside the adapter 17).

The yarn package 3 which has been subjected to the pick-up process in this manner is supplied to the circulation conveyor 7 and conveyed along the unit 5 of the double twister 4 by the diverter conveyor 8. In this case, since the picked-out yarn end Y of the yarn feeding package 3 is held by the tensioner 2 in the adapter 17, there is no risk that the yarn end Y will come off from the adapter 17 during conveyance.

The robot 9 traveling along the unit 5 detects a unit 5 capable of doffing, stops, and performs yarn feeding and other operations. First, the actual yarn supply package 3A conveyed on the diverter conveyor 8 is detected and the locking mechanism 4
5 locks the transport tray 18, and by opening/closing and sliding the chuck 60 of the operating arm 51 and raising and lowering the operating arm 51, the top cap portion 17b of the actual paper feed package 3A on the transport tray 18 is grasped and the robot moves it. After transferring the empty yarn package 3B of the spindle 28 to the temporary holding peg 49 on the conveyance tray 18, the temporary holding peg 4
The actual yarn supply package 3A on 9 is transferred to the spindle 28, and the yarn supply exchange is completed.

After yarn feeding exchange, the empty yarn package 3B is transferred from the branching conveyor 8 to the circulation conveyor 7 by the feeding device 11.
The yarn feeding package 3 is conveyed to the conveyance tray 18, and as described above is extracted from the conveyance tray 18 and carried out. A new yarn feeding package 3 is mounted on the conveyance tray 18 and the yarn feeding package 3 is supplied to the unit 5, and the cycle is repeated.

When the actual yarn supply package 3A is supplied to the spindle 28 of the unit 5, threading is performed by a known compressed air threading structure built into the spindle 28. This makes it possible to thread the thread reliably and easily.

Since the yarn feeding package 3 is processed in advance in this way, the robot 41 moves the yarn feeding package 3 and the empty yarn feeding package 3B on the spindle 28.
Threading can be easily carried out on the unit 5 side, eliminating the need for a feed mechanism and threading mechanism of the robot 41, and simplifying the structure of the robot 41. Further, processing efficiency is improved because it is no longer necessary to carry out picking on the robot or to supply mis-picked packages to the spindle 28 of the unit 5 and wait for the operator to process them.

In the embodiment, a yarn feeding package with yarns that are combined is used, but if a yarn feeding package that is not combined is used, a two-stage yarn feeding package 69 as shown in FIG. 10 may be used. Two unpaired yarn supply packages 3a and 3b are attached to the long adapter 17 above and below, and the pick-up device 11 picks up the yarn ends Y1 and 3b pulled out from the surface of each yarn layer 16, respectively.
Y2 is inserted into the upper end of the adapter 17. A spacer 70 is installed between the upper and lower yarn supply packages 3a and 3b, and the spacer 70 is provided with a yarn Y unwound from the lower yarn supply package 3b.
2 is the lower edge x of the yarn layer of the upper yarn feeding package 3a
A regulating member 71 (made of thin resin wires attached in the shape of a scallop) is attached to prevent contact with the material. By using this two-stage yarn feeding package 69, it is possible to twist two yarns while combining them in the unit 5.

[Effects of the Invention] In short, according to the present invention, since the yarn supply package is supplied to the unit with the yarn end inserted into the center hole in advance and the yarn end is exposed, the robot can connect the yarn supply package to the unit. It is only necessary to replace the yarn package with the yarn package, which simplifies the structure, and also eliminates the need to feed the mislead package to the spindle of the unit and wait for the operator to process it, improving processing efficiency.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the double twister yarn feeding and conveying system according to the present invention, Fig. 2 is a plan view of the pick-up device portion of the system, and Fig. 3 is a drawing of an empty fed yarn package on a tray. 4 is a side view showing the device for feeding the yarn supply package to the tray, FIG. 5 is a cross-sectional view showing the structure of the pick-up device, and FIG. 6 is a partial cross-section of the adapter of the yarn supply package. 7 is a side view showing the double twister unit and robot, FIG. 8 is a plan view showing the configuration of the operating arm of the robot, FIG. 9 is a side view showing the procedure for replacing the yarn feeding package, and FIG.
Figure 0 is a sectional view of the two-stage yarn feeding package. In the figure, 3 is a yarn feeding package, 4 is a double twister, 5 is a unit, 6 is a conveyor, and 11 is a pick-up device.

Claims (1)

[Claims] 1. A conveyor is provided for conveying the yarn supply package along a plurality of double twister units arranged in parallel, and an opening is provided on the inlet side of the conveyor for inserting the yarn end pulled out from the surface of the yarn layer of the yarn supply package into its center hole. A double twister yarn feeding and conveying system characterized by the provision of a device.