JPH0532377A - Thread supply exchanging system for expansible temporary twisting machine - Google Patents

Abstract

PURPOSE:To provide a thread supply exchanging system of a semiautomatic expansible temporary twisting machine capable of facilitating the exchange of the thread supply and tail connection. CONSTITUTION:A package transferring station 3 is provided on one end of a row of creels 2 of an expansible temporary twisting machine. A thread supply exchange system of an expansible temporary twisting machine has a robot arm 12 for transferring the package between the station 3 and creel row 2 while disposing a thread supply exchange truck 4 provided with a working bed 11 on which a tail connecting operater rides and capable of travelling.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn feeding / exchange system for a drawing false twisting machine, which efficiently exchanges yarns on a creel row of the drawing false twisting machine and tail splices.

[0002]

2. Description of the Related Art Stretching false twisting machines and the like have been automated in order to meet the demands for cost reduction due to labor saving, centralized management by computer and protection of package surface. Conventionally, as a typical example of this automation system, there is known one in which an automatic processing of a false twist package after processing is performed by a combination of an auto doffer and a rotary peg.

[0003]

However, the above-mentioned automated system is related to the false twist package, and the replacement of the yarn supplying package with respect to the creel still requires manual labor. The creel has a large number of pairs of peg shafts, one of which holds the package being unloaded, and the other of which holds the spare package. The tail of the unpacking package is connected to the spare package so that when the unpacking package is empty, it switches to the spare package. Therefore, it is necessary to confirm the switching, insert a new spare package, and perform tail joining. As described above, in addition to the package replacement, the detailed work of tail splicing is required, and therefore the automation of the yarn supply replacement is actually postponed.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a semi-automatic drawing false twisting machine which facilitates yarn supply exchange and tail splicing. An attempt is made to provide a yarn feeding exchange system.

[0005]

In order to achieve the above object, the yarn feeding and exchanging system for a draw false twisting machine of the present invention is provided with a package transfer station at one end of a creel row of the draw false twisting machine. Between the transfer station and the creel row, there is provided a package transfer robot arm, and a yarn feeding cart having a workbench on which a tail splicing operator rides is movably arranged.

[0006]

[Function] The yarn feeding exchange cart has a yarn feeding exchange function by the package transfer robot arm and is provided with a workbench for the tail splicing by the operator. Can be done with.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a yarn supply exchange system of the present invention.

In FIG. 1, reference numeral 1 is a draw false twisting machine, 2 is a creel, 3 is a package transfer device, 4 is a yarn feed changing carriage for the creel 2, 5 is a rotary peg, and 6 is an auto doffer for the rotary peg 5. Further, instead of the package transfer device 3, a peg stand 7 can be used. Further, the yarn feeding exchange cart 4 is a work table 1 that can be raised and lowered.
1 and a package transfer robot arm 12. The layout is simplified to show the basics of the yarn supply exchange system.

Next, the structure and operation of each device constituting the yarn feeding exchange system will be described. First, the creel 2 will be described with reference to FIG. The creel 2 is a fixed type, and a package P having six upper and lower stages is housed in a frame body 40. Frame 4
The rotating cylinder 42 is inserted into the working-side support column 41 of
The height of the rotary cylinder 42 is determined by the boss 43 fixed to the. A peg shaft 44 is attached to the rotary cylinder 42 to support the package P. As shown in the partial top view, this peg shaft is composed of a pair of left and right 44a and 44b. One peg shaft 44a supports the package being unwound, and the other peg shaft 44b supports the spare package. There is. Further, the tail Y1 of the unwinding package is spliced with the yarn end Y2 of the spare package, and is automatically switched. Then, the three claws 45 are attached to the upper end of the rotary cylinder 42, and when the three claws 45 are turned, the three claws 45 are swung between the two-dot chain line and the solid line. Reference numeral 46 is a display device showing a portion where the yarn supply has been changed. In the illustrated example, the yarn supply is changed at the sixth step, and the portion requiring yarn splicing can be seen at a glance.

In FIG. 1, a transfer device 3 is installed in the same row as the creel 2 and at a position facing the yarn feeding exchange carriage 4. The transfer device 3 will be described with reference to FIG. A table 35 is fixed to a shaft 34 that is rotatably supported. Two peg shafts 36 project upward from the table 35. An arm 37 is fixedly mounted on the shaft 34,
A cylinder 39 is attached between the tip of the arm 37 and the base 33. Reference numeral 38 is a positioning guide rod. When the cylinder 39 is in the shortened state shown in the drawing, the table 35 is horizontal and the peg shaft 36 is upward. When the cylinder 39 is in the extended state and the arm 37 is in the position of the chain double-dashed line, the table 35 becomes a vertical surface and the peg shaft 36
And turns sideways. Next, the operation of the transfer device 3 will be described. When the ceiling carrier 30 lowers the carrier 31,
The carrier 32 is positioned by the guide rod 38, and the package P is directly above the table 35. Bobbin chuck 32
Is reduced, the package P moves upward and the peg shaft 3
6 is inserted. After the carrier 31 is lifted, the thin lid 39 is extended, the table 35 is rotated 90 ° in the counterclockwise direction about the shaft 34, and the package P is laid sideways as indicated by a chain double-dashed line. Then, the yarn feeding exchange cart 4 receives the packages P in order. Instead of the transfer device 3, the peg stand 7 shown in FIG. 1 can be carried to a position in the same row as the creel 2 and facing the yarn feeding exchange carriage 4 to form a package transfer station.

The structure and operation of the yarn feeding carriage 4 will be described with reference to FIGS. 4 and 5. The yarn feeding exchange carriage 4 includes a carriage main body 13 capable of controlled traveling drive, and a guide groove 13 of the main body 13.
A workbench 11 that can be moved up and down by a, and an elevating frame 14 that is guided by the guide rod 13b of the main body 13 and engages with the screw shaft 13c.
The robot arm 12 is slidable in the horizontal direction with respect to the elevating frame 14, and the revolving arms 15a, 15b, 15c rotatably supported by the elevating frame 14. Also,
Six sets of sensors (one set of sensors is composed of sensors 16 and 17) corresponding to each of the six-stage creel are attached to the front side surface of the main body 13.

The workbench 11 is stopped by a chain 18 at a predetermined height out of six steps, and the position shown is the sixth step. The workbench 11 is provided with an air splicer 19 and is hooked at a position where a worker who gets in can easily handle it. This air splicer 1
The air source for 9 is supplied through a flexible hose from a cable bear on the ceiling (not shown) to the carriage body 13. The operator simply puts the taken out yarn ends into the air splicer 19 and presses the switch to perform yarn joining. Further, the workbench 11 is provided with an operation box 20 and is connected to the controller 21 via a cable bear. The controller 21 controls the operation of the yarn feeding exchange cart 4. The operation box 20 has, for example, a start button and a restart button. When an operator gets in the yarn feeding exchange cart 4 and presses the start button, the yarn feeding cart 4 runs and the workbench 11 reaches a predetermined height. Rises up. In addition, when the tail splicing is completed and the operator presses the restart button, the yarn feeding exchange cart 4
Moves to the next tail joint portion, and the height of the workbench 11 is readjusted.

The elevating frame 14 can be stopped at a height corresponding to six arbitrary positions of the creel. And
The revolving arm 15a rotates, and the three claws 45 (see FIG. 2) of the creel are rotated so that the creel peg shaft 44 (see FIG. 2) faces the robot arm 12. The swivel arm 15b has a peg shaft 44.
The rotating arm 15c is for returning the peg shaft 44 to its original position. Robot arm 12 is package P
And a receiving member 23 for the empty bobbin B. After receiving the empty bobbin B, the carriage main body 13 travels a distance L1 to transfer the package P. Also,
When receiving the empty bobbin B or transferring the package P,
The elevating frame 14 moves up and down by a height H, and the robot arm 12 moves back and forth with respect to the elevating frame 14 by a distance L2 as shown in FIG.

A pair of sensors 16 and 17 for the carriage main body 13 determines whether or not the yarn supply needs to be replaced, as shown in FIG. 6 (a). It is assumed that the reflecting mirror 47 is attached to the creel 2, the empty bobbin B is supported on the right side, and the full package P is supported on the left side. The sensor 16 is located at a position where the height from the center is H1 and measures just inside the outer diameter of the full package P. The sensor 17 is located at a position where the height from the center is H2 and measures just above the outer diameter of the empty bobbin B. That is, if both the sensors 16 and 17 are ON-ON, it can be determined that the ball is full, and if both the sensors 16 and 17 are OFF-OFF, it can be determined that the ball is small or empty.
If is ON, it can be judged to be an intermediate half ball. And FIG.
Normally, the combinations other than those shown in (b) do not occur. When it is necessary to replace the yarn, the yarn feeding exchange cart is stopped and the yarn feeding operation is started. When there is no need for replacement and there is a need for replacement in the near future, the yarn feeding exchange cart bypasses the row and determines whether or not the yarn feeding needs to be changed in the next row. Further, when the yarn supplying exchange is performed, the yarn supplying exchange portion is stored in the controller 21 of FIG. Next, when the yarn feeding exchange is completed, the worker
Get on to, and perform tail splicing sequentially for the yarn feeding exchange parts.

Next, the yarn feeding exchange procedure will be described with reference to FIGS. 7 and 8. First, the procedure for collecting empty bobbins will be described with reference to FIG. In FIG. 7A, the carriage main body travels, and the receiver 23 of the robot arm 12 stops in front of the empty bobbin B. The revolving arm 15a rotates, and the three claws 45 rotate to make the peg shaft 44 and the receiving member 23 face each other. In FIG. 7B, the robot arm 12 moves forward a distance L2, and the lifting frame 14
The robot arm 12 slightly moves up (height H in FIG. 4) to receive the empty bobbin B, and the robot arm 12 retracts a distance L2. When the elevating frame 14 moves up, the swivel arm 15a is released from the engagement with the three claws 45, so that the swivel arm 15a returns to its original position. Next, transfer of the full package P will be described with reference to FIG. In FIG. 8A, the bogie body travels a distance L1 and stops at a position where the peg shaft 22 of the robot arm 12 faces the peg shaft 44 of the creel. Then, the robot arm 12 advances by a distance L2 to insert the full package P into the peg shaft 44 of the creel, and the elevating frame 14 itself descends slightly (height H in FIG. 4) to transfer the full package. .. At this time, the rotating arm 15b fixes the three claws 45. In FIG. 8B, the robot arm 12 has a distance L.
After retreating 2 times, the revolving arm 15c turns the three claws 45 to bring the full package P to the predetermined position indicated by the chain double-dashed line. Then, the yarn splicing is performed by the procedure described below.

FIG. 9 is a flow chart showing the operation of the yarn feeding exchange cart. In step # 2, the flow starts when it is determined whether the yarn supply needs to be replaced. The yarn supply is replaced with respect to the creel determined to require the yarn supply replacement in step # 3. In step # 4, the yarn feeding exchange parts (specific creel and its place) that are sequentially performed are stored. When the one-way yarn exchange is completed, the tail splicing is displayed in step # 5. When the operator gets on the yarn exchange cart and turns on the start button, the yarn exchange cart starts traveling. In step # 6, the yarn feeding exchange cart travels to the creel of the yarn feeding exchange portion stored in advance. At the same time, in step # 7, the workbench is moved up and down to an appropriate height toward the yarn supply exchange portion of the creel.
At step # 8, the tail joining of the worker is completed, and the restart button is turned on. In step # 9, it is determined whether or not there is a yarn supply replacement portion of the remaining creel, and if there is (YES), steps # 6 to # 8 are repeated. When the part of the creel for replacing the yarn supply disappears (NO), the yarn supply exchanging carriage returns to the home position in step # 10, and the operator is lowered.
Then, in a predetermined cycle, step # 2 to step # 1
Repeat 0.

The empty bobbin B received by the receiver 23
Are collected in the box 24 as shown in FIG. A tilt table 25 is arranged above the box 24. When the elevating frame is lowered, the receiving tool 23 is also lowered, and the tilt table 25 is moved to the receiving tool 23.
The empty bobbin B is pushed up. The empty bobbin B overcomes the receiver 23 and goes into the box 24.
Fall inside. The positional relationship with the yarn feeding exchange cart is shown in FIG.
The box 24 is installed in the vicinity of the package transfer device 3 in FIG.

In the above-described embodiment, the case has been described in which the yarn feeding exchange cart automatically travels to the yarn feeding exchange position of the creel, and the workbench also automatically moves up and down. However, as shown in FIG. 2, when the display device 46 displays the yarn feeding exchange portion, an operator who gets in the yarn feeding exchange trolley drives the yarn feeding exchange trolley and makes it travel to the creel while watching this display. The workbench can also be set to a predetermined height by the operator's operation.

In the above description, the case of the fixed type six-stage creel has been described, but the present invention can be applied to the rotary type four-stage creel. In this case, the yarn feeding exchange cart is equipped with a creel rotation device. For example, there is a type in which pins that are driven rotary members are erected around a central axis of a rotary creel, and a yarn feeding cart is provided with a disengageable drive gear that meshes with these pins.

[0020]

According to the yarn feeding and exchanging system of the drawing false twisting machine of the present invention, the package transferring station is provided at one end of the creel row of the drawing false twisting machine, and the package is placed between the package transferring station and the creel row. In addition to having a transfer robot arm, a yarn feeding exchange cart provided with a work table on which a tail splicing worker rides is arranged so that it can travel freely.
Since the yarn feeding and the tail splicing can be performed by one trolley, the semi-automatic yarn feeding can be efficiently achieved.

[Brief description of drawings]

FIG. 1 is a diagram showing a yarn supply exchange system of the present invention.

FIG. 2 is a side view of the creel.

FIG. 3 is a side view of a transfer station.

FIG. 4 is a front view of a yarn feeding exchange cart.

FIG. 5 is a top view of the yarn feeding exchange cart.

FIG. 6 is a diagram showing detection of necessity of yarn supply replacement.

FIG. 7 is an empty bobbin recovery procedure diagram.

FIG. 8 is a diagram illustrating a procedure for inserting a yarn supplying package.

FIG. 9 is a flowchart of a tail joining operation.

FIG. 10 is a diagram showing the collection of empty bobbins.

[Explanation of symbols]

 1 Stretching False Twisting Machine 2 Creel 3 Package Transfer Device 4 Yarn Supply Changing Cart 11 Working Table 12 Robot Arm

Claims (1)

Claims: 1. A package transfer station is provided at one end of a creel row of a draw false twisting machine, and a package transfer robot arm is provided between the package transfer station and the creel row. A yarn feeding exchange system for a draw false twisting machine, comprising a yarn feeding exchange carriage provided with a work table on which a tail splicing worker rides.