JPH0138748B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is applicable to doffing of a full bobbin of a thread winding machine, installation of an empty bobbin, cutting of the tail yarn related thereto, holding of the cut supply yarn end side, threading on the empty bobbin, etc. The present invention relates to a yarn running path regulating device that is applied when automatically performing a series of operations.

In recent years, in thread winding machines that cheese-wind yarn from a spinning spun or a drawing false twister, etc., doffing of full bobbins, installation of empty bobbins, related cutting of yarn ends, and cut supply yarn ends have been introduced. Various so-called automatic doffing devices have been proposed and put into practical use.

Conventionally, a device that performs various operations related to the automatic doffing described above is mounted on a trolley that runs in front of a number of thread winding machines installed in parallel, and the trolley is mounted in front of the thread winding machine when the bobbin winder has reached a fully wound state. After the movement is stopped, the above-mentioned operations are performed according to the required sequence of operations. Since the carriage is equipped with a suction gun for sucking and holding yarn on the supply side, a suction device connected to this gun, a storage tank for suctioning waste yarn, etc., the mechanism is complicated and the carriage becomes large, and its movement power is also reduced. There were some problems, such as the size.

In order to solve the above-mentioned problems, the present invention provides a suction type traverse guide pipe that extends in front of a large number of thread winding machines in parallel with the bobbin drive roller shaft of the thread winding machine. An air intake port is drilled on the thread sliding contact surface at a position corresponding to the thread cutting collar of the bobbin mounted on each thread winder, and a thread guide receiving ring that permanently seals the air intake port is slid onto the traverse guide tube. the thread shifting guide receiving ring is resiliently fixed to the traverse guide tube via a spring, and when the thread shifting guide slides on the thread shifting guide receiving ring against the elastic force of the spring. This is a yarn travel path regulating device for automatic doffing of a thread winding machine, characterized in that the suction port is opened to suck the supply side yarn into a traverse guide tube.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view schematically showing the arrangement of the device of the present invention, FIG. 2 is a side view of the main parts, FIG. 3 is a plan view of the same, and FIG. 4 is a front view with some parts omitted. 5
FIG. 6 is a front view of the thread guide, and FIGS. 7 to 9 are perspective views showing the thread threading operation process. 10 to 12 are plan views showing the relationship between the yarn shifting guide, the yarn shifting guide receiving ring, and the yarn in each step; FIG. 13 is a front view corresponding to FIG. 12; FIG. 14; FIG. 15 is a front view showing the relationship between the thread shifting guide, the thread shifting guide receiving ring, and the yarn after threading is completed.

In FIG. 1, a large number of bobbin winding machines W are arranged in parallel so that their respective bobbin drive roller axes form a straight line, and in front of them, parallel to the bobbin drive roller axes,
An intake-type traverse guide pipe 5 that communicates with the reduced pressure intake tank 6 via the intake air amplifier AS is extended, and a parallel rail 19 is further laid in front of it.
A cart 20 carrying various mechanisms as described later is installed so as to run parallel to the traverse guide pipe 5.

The traverse guide tube 5 is provided with a stopper 7 consisting of a fixing ring, a coil spring, and a thread guide receiving ring at a position corresponding to the thread cutting collar of the bobbin mounted on each bobbin winder W.

As will be described later, the thread guide receiving ring always seals the intake port formed in the traverse guide tube 5. The end of the traverse guide tube 5 is sealed.

The cart 20 receives a sensing signal just before the bobbin of the bobbin of the bobbin of the bobbin W of the bobbin winding machine W becomes substantially full, moves to the front of the bobbin winding machine W, and at the same time as doffing the bobbin to full bobbin, the cart 20 is explained as follows in Fig. 2. As shown in the figure, various operations such as thread pulling, thread cutting, and thread threading are performed in sequence.

In FIGS. 2 to 4, 1 is a bobbin drive roller for winding a thread winder, 2 is a bobbin, 3 is a thread cutting collar having a thread cutting groove 4 on the periphery provided at the end of the bobbin shaft, and 5 is a traverse guide. It is connected to the reduced pressure intake tank 6 by a pipe as described above.

7 is a stopper, which includes a thread guide receiving ring 72, a coil spring 73, and a fixing ring 71.
The thread guide receiving ring 72 is slidably fitted onto the traverse guide tube 5.

8 is below the traverse guide tube 5, and the bobbin 2
10 is an oiling roller;
is a yarn guide provided at the tip of the lever 12, and the yarn Y transferred by the swinging of the lever 12 comes into contact with and leaves the surface of the oiling roller 10, and is oiled or oiling is interrupted. 13 indicates a full bobbin.

20 is a cart that moves parallel to the line of bobbin winders, 21 is a pressure cylinder that operates on the lever 12 of the oiling roller 10, and 22 is a thread shifting arm 3, which will be described later.
23 is a pressure cylinder that moves the thread shifting arm 30 in the direction of the spline shaft 31 that supports the thread shifting arm 30; 24 is a pressure cylinder that operates the thread pulling guide 32; 25 is a pressure cylinder that operates the thread pulling guide 32;
is the pressure cylinder 24 together with the thread pulling guide 32.
26 is a pressure cylinder that operates the threading guide 33. The pressure cylinder 21 is located approximately below the center of the cart 20, the pressure cylinders 22 and 23 are on the left side of the cart 20, and the pressure cylinders 24 and 25 are located on the left side of the cart 20. , 26 are fixedly installed on the right side of the truck 20, respectively.

The thread shifting arm 30 has a downwardly bent thread shifting guide 40 at its tip, and the thread shifting guide 40 has a protruding piece 41 on the right side as shown in FIGS. A fine serrated surface 42 with which the thread engages is formed, and a cutter portion 43 is provided on the right edge of the lower surface of the protruding piece 41 via a stepped portion. The base of the thread shifting arm 30 is attached to a guide bush 35 fitted on the spline shaft 31, and the guide bush 35 is fixed to the working end of the pressure cylinder 23 by a connecting plate 36.
The end of the spline shaft 31 is rotatably supported and protrudes through a bracket 29 erected from the frame 28, and its tip forms a shaft with a square cross section, and one end is supported pivotally at the operating end of the pressure cylinder 22. It is unrotatably fitted into a long hole provided at the upper end of the connecting rod 34.

Therefore, as shown in FIG. 5, when the pressure cylinder 22 is pulled in the direction of the arrow, the connecting rod 34 swings, and accordingly, the spline shaft 31 rotates slightly clockwise, causing the thread pulling arm to rotate. 30 and the thread shifting guide 40 swing from the position shown by the dashed line to the position shown by the solid line, and are positioned so as to cover the upper surface and rear surface of the traverse guide tube 5, and as the pressure cylinder 23 protrudes, the thread shifting arm 30 is traverse guide pipe 5
The yarn Y, which is being wound and moving in contact with the traverse guide tube 5, is hooked onto the cutter portion 43 of the stepped portion on the lower surface of the yarn shifting guide 40, and slid in the direction of the stopper 7. do.

A guide piece 74 is erected on the upper surface of the yarn guide receiving ring 72 of the stopper 7, and the upper edge of the guide piece 74 is inclined downward toward the running yarn Y side.

The threading guide 33 is composed of bifurcated pieces, each of which has a threading edge with a wedge-shaped notch at its tip. The threading guide 33 is fixed to the tip of a guide bar 45 held parallel to the pressure cylinder 26, and the guide bar 45 can be rotated around its axis by a connecting plate 46 at the operating end of the pressure cylinder 26. and pressure cylinder 2
It penetrates through a guide tube 47 fixedly attached to the guide tube 6 and is held therein. A guide groove 48 that extends in the axial direction and is bent slightly obliquely in the middle is recessed on the outer surface of the guide bar 45, and a pin 49 that is fixed and protrudes from the guide tube 47 is engaged with the guide groove 48. . Actuation of the pressure cylinder 26 therefore causes the coupling plate 46 at its working end to
At the same time, the guide bar 45 protrudes, and by the time the thread hooking guide 33 reaches the position of the thread cutting collar 3 of the bobbin 2 mounted on the bobbin drive roller 1, the guide bar 45 has moved forward as shown by the dashed line 33'. Rotate 60° to 90° around the counterclockwise axis in the protruding direction.

Based on the above-mentioned configuration, this device can doff a full bobbin and install an empty bobbin as shown below.
The traveling path of the supplied yarn is regulated based on the suction port position, and the yarn shifting process is reliably carried out.

When the bobbin reaches full capacity, the pressure cylinder 21 is activated to project the operating end that is in the retracted position, swing the lever 12 to release the yarn Y from the oiling roller 10 surface, and at the same time the pressure cylinder 21
2 and 23 operate to swing the thread shifting arm 30 and the thread shifting guide 40 at its tip so as to cover the upper and rear surfaces of the traverse guide tube 5, and advance the thread shifting arm 30 along the traverse guide tube 5. At the very least, the yarn Y running in contact with the surface of the traverse guide tube 5 is shifted toward the stopper 7 as shown in FIG.

During this time, the pressure cylinder 24 is operated to cause the thread drawing guide 32 to protrude to the position indicated by a dashed line 32' directly below the traverse guide tube 5.

As the thread shifting arm 30 moves forward, the cutter portion 43 of the thread shifting guide 40 changes from the state shown in FIG. 10 to the state shown in FIG. 11, that is, the state shown in FIG. When the cutter section 43 of 40 presses and slides the thread guide receiving ring 72 against the elastic force of the coil spring 73 and stops after opening the intake port 75, the cutter section 43 and the side surface of the thread shifting guide receiving ring The yarn Y is held under pressure between them, and is cut by increasing the winding tension on the bobbin side, and the winding side is wound on the bobbin side as a tail yarn, and the supply side is shown in Figs. 12 and 13. As shown, the yarn is sucked into the traverse guide tube 5 through the suction port 75, and the first yarn traveling path is regulated between the fixed yarn guide 8 and the suction port 75, as shown at Y' in FIG. will be held. The thread pulling guide 32', which had protruded at this point, returns to the solid line position 32 in FIG.
The thread pulling guide 32 is raised to the position shown at 32'' in FIG. The traveling route is regulated.During this time, the full bobbin on the bobbin winder side is doffed and replaced with an empty bobbin.

Due to the secondary yarn traveling path regulation, the yarn Y'' running under tension between the raised yarn pulling guide 32'' and the air intake port 75 is caused by the protrusion of the yarn threading guide 33 as shown in FIG. Since the pressure cylinder 2 is oriented in a substantially vertical direction so as to intersect the path, the pressure cylinder 2 operates at the same time as the second yarn traveling path regulation is performed.
6, the thread Y'' is caught between the wedge-shaped notches of the bifurcated piece of the threading guide 33 at the tip of the protruding guide bar 45, resulting in the state shown in FIG.
Guide bar 45 so that it can be hung on the thread cutting collar 3 of
reaches the thread while rotating and is guided into the thread cutting groove 4 of the thread cutting collar 3, and the thread under tension between the two prongs of the threading guide 33 is cut, and the thread on the supply side is cut off from the bobbin 2. The cut thread is held by an appropriate thread end holding member provided on the inner surface of the thread cutting collar 3, such as a hook sheet surface of a surface fastener, and wound onto the bobbin 2, and the other cut thread is sucked into the suction port 75 and removed, and the threading process is completed. finish.

At the same time as the above threading process is completed, the pressure cylinder 25 operates in reverse, and the threading guide 32 descends.
As shown in FIG. 14, the yarn Y contacts the inclined surface of the guide piece 74 of the thread shifting guide receiving ring 72 and moves toward its tip, and as shown in FIG. By the reverse operation of the pressure cylinder 23, the yarn Y moves to the left so that it is locked to the traverse guide pin, resulting in the state shown in FIG. As the yarn Y moves to the left, the tension causes the yarn Y to separate from the uneven surface 42, and traverse winding is performed by the operation of the traverse guide pin.

During this time, the pressure cylinder 21 operates in reverse to pull its operating end back forward along the yarn path, and the lever 12 moves down the yarn guide 11 against the yarn tension due to its own weight, oiling the yarn Y. will be held. Also, the pressure cylinder 26 operates in reverse to pull the thread guide 33 back to its original position, and the pressure cylinder 22 operates in reverse to move the thread shifting arm 30 so that the thread shifting guide 40 at its tip is above the path of the yarn Y. It swings like this and returns to its original state.

In this way, the cart 20 moves to the front of the other bobbin winding machine W in response to the full thread signal from the other bobbin winding machine W, and automatically performs the thread cutting and threading processes while regulating the thread travel path at the time of thread gathering as described above. It is something that is done on a regular basis.

As explained above, according to the present invention, an intake type traverse guide pipe is installed on the front surface of a large number of thread winding machines arranged in parallel, and an intake port is provided at a predetermined position corresponding to each thread winding machine, and In connection with the thread pulling operation performed from the thread pulling operation, the suction port can be opened to regulate the thread traveling path, and accordingly, the thread cutting and thread threading processes can also be carried out reliably. In addition, the equipment structure can be simplified, and this device is extremely excellent as a thread travel path regulating device for automatic doffing of a thread winding machine.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a plan view schematically showing the arrangement of the device, FIG. 2 is a side view of the main parts, FIG. 3 is a plan view of the same, and FIG. FIG. 5 is a front view with parts omitted; FIG. 5 is a perspective view of the main parts showing the relationship between the thread guide and the traverse guide tube;
The figure is a front view of the thread shifting guide, Figures 7 to 9 are perspective views showing the threading process, and Figures 10 to 12 are the relationships between the thread shifting guide, thread shifting guide receiving ring, and yarn. FIG. 13 is a front view corresponding to FIG. 12, FIG. 14 is a plan view showing each process,
FIG. 15 is a front view showing the relationship between the thread shifting guide, the thread shifting guide receiving ring, and the yarn after threading is completed. 1...Bobbin drive roller, 2...Bobbin, 3
... Thread cutting collar, 4 ... Thread cutting groove, 5 ... Traverse guide pipe, 6 ... Decompression suction tank, 7 ... Stopper, 8 ... Fixed thread guide, 13 ... Full bobbin, 20 ... Cart , 21, 22, 23, 24, 2
5, 26...pressure cylinder, 30...thread pulling arm, 32...thread pulling guide, 33... thread threading guide, 40... thread pulling guide, 42... uneven surface,
43...Cutter part, 71...Fixing ring, 72
...Thread guide receiving ring, 73...Coil spring, 74...Guide piece, 75...Intake port.

Claims (1)

[Claims] 1. A suction type traverse guide pipe is installed in front of a large number of thread winders arranged in parallel in parallel with the bobbin drive roller axis of the thread winder, and the bobbin mounted on each thread winder is inserted into the traverse guide pipe. In addition to drilling an air intake port on the thread sliding contact surface at a position corresponding to the thread cutting collar,
A thread shifting guide receiving ring that always seals the suction port is slidably fitted to the traverse guide tube, and the thread shifting guide receiving ring is elastically retained on the traverse guide tube via a spring, so that the thread shifting guide An automatic thread winding machine characterized in that when a thread guide receiving ring is slid against the elastic force of a spring, an intake port is opened to suck the supply side thread into a traverse guide tube. Yarn running path regulating device for doffing.