JPS593385B2 - Tube yarn supply device with yarn end capture device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION 5 The present invention provides a yarn end catching device for feeding a yarn to an automatic winder, magazine device, or other yarn processing device, and for pulling out and holding the yarn end of the yarn. Regarding the attached pipe thread supply device, in particular, when feeding the pipe thread through the cylinder, 10 consecutive pressure reduction chambers are formed in the pressure reduction device on a part of the outer periphery of the cylinder,
The pipe thread passage cylinder facing the decompression chamber has a fixed part, a sliding part,
Alternatively, both may be configured to be slidable so that the opening can be temporarily opened, and the thread end of the pipe suctioned into the opening is held by a pipe sliding cylinder to supply the pipe thread. 15
It is characterized by what has been achieved.

Conventionally, in the case of an automatic winder's pipe supply section or an automatic winder equipped with a magazine device, a means for individually supplying the pipe thread to other pipe processing devices other than the magazine device or the winder has often been used. The ends of the pipe threads are either pulled out in advance or are pulled out after being supplied. Further, in most of these feeding devices, the tube yarn is fed through a circular or non-circular cylinder, so it is desirable that the tube be provided with a means for catching the end of the tube. H5: However, when a pipe yarn is wound up using a general ring spinning machine, the top intercoil wraps tightly from the shoulder to the butt of the pipe yarn, making it extremely difficult to rewind and capture the yarn while it passes through the cylinder. Even if it could be done, it would be an extremely complicated mechanism, and maintenance would be difficult. The inventors of the present invention have invented and separately proposed a device in which the ends of the yarns are free ends when the tube yarns are individually conveyed and fed. In other words, it is an extremely simple device that unwinds the conventional top intercoil to form a free-end yarn, and the amount of yarn coming out of the device is approximately 10 cf.
It is formed to have n free end ends. Therefore, the yarn used in the present invention is one that utilizes a rewinding machine as described above, or another means for forming the yarn into a free-end yarn. A wide variety of means have been proposed in the past for capturing the yarn end of a tube yarn with a suction nozzle.
Most of these require the rotation of the yarn, making the mechanism complicated, and cannot be used at all for the aforementioned yarn supply cylinder. Furthermore, a device has been proposed, for example, in Japanese Patent Publication No. 49-8410, in which a suction nozzle is fixed in an annular manner around the tube without rotating the tube, and the end of the tube is captured as it passes. This method uses an extremely strong suction airflow, and the end of the yarn cannot be captured unless a strong suction force is applied. In addition, even if these nozzles catch the yarn end, it is difficult to put it into practical use unless it is configured so that it can be gripped reliably and released in a timely manner. The timing becomes important. The present invention has been made with attention to these points, and a decompression chamber connected to a decompression device is provided on a part of the outer periphery of the tube passing cylinder, and one or both of the tube and yarn supply tubes facing the depressurization chamber are slid. By temporarily opening the horizontal, inclined, or zigzag-shaped joint surfaces formed by the end surfaces of each cylinder and using it as a slit to suck the yarn end,
This time, close the slit and clamp the end of the suction thread. In this way, the yarn end is caught and held, and the tube yarn is fed into a predetermined section.
Either the sliding cylinder is operated to open again to release the pinched yarn end, or a crossing yarn cutting device is installed during the supply to cut the crossing yarn, and the pinched yarn end is removed together with the suction airflow when the suction is opened next time. It may be configured so that The present invention will be described below based on the drawings, but the drawings merely show examples and there is no reason to limit the invention to these, and the invention can be modified as appropriate within the scope described below.

FIG. 1 is a front view of the present invention applied to a tube supply cylinder, FIG. 2 is a top plan view of FIG. 1, and FIG. 3 is a bottom plan view of FIG. 1. In these figures, the tube supply tube 1 is composed of an outer tube 2 with a suitable cross-sectional shape and an inner tube 3, which is preferably circular, inside the outer tube 2. The outer tube 2 and the inner tube 3 are fixed with retaining rings 12, 12. Ru. The tube supply tube 1 has a tube mooring and releasing means in the middle and at the bottom thereof. Of these, the figure shows the lower tube line mooring release device at 4, and T is a trap door connected to the mooring release device. Reference numeral 5 denotes a decompression pipe connected to the outer cylinder 2 in correspondence with the lower pipe line mooring release device 4, one side of the pipe 5 is connected to the outer cylinder 2 through a connecting part 6, and the other side is connected to a suitable suction fan or It is connected to a reduced pressure source to apply reduced pressure intermittently or continuously.

Reference numeral 8 indicates a starting portion of the sliding tube, which will be described later.

FIG. 4 is a cross-sectional view taken along section line 4--4 in FIG. 2 in the direction of the arrow, and shows a part 14 of the inner cylinder 3 fixed to the outer cylinder 2 as a sliding cylinder. That is, the end face of the sliding tube 14 is disposed at the lower tube line mooring release device 4 and the decompression pipe connecting portion. 13 and 3 are fixed inner cylinders, and both have retaining rings 12 as described above.
The sliding tube 14 is fixed to the outer tube 2 with retaining ring seats 15, 15 so as to be slidable on the outer tube 2.

The upper part of the sliding tube 14 forms an enlarged-diameter insertion part 16, which is loosely inserted into the fixed inner tube 3, and a flange IT is formed on the outer periphery of the top surface thereof, either as one piece or as a separate piece, and is attached thereto. A spring 18 is disposed between the flange 17 and the retaining ring 12, and constantly presses and biases the sliding cylinder 14 toward the fixed inner cylinder 13.

Reference numerals 20 and 20 refer to pulleys which are loosely supported at the tips of the levers 19 and 19 to allow the sliding tube 14 to slide.
A part of the outer cylinder on the right side of the figure is cut away, and the pulley 20 is shown in FIG.
The lever 19, which is supported at both ends, is connected to the arm 24.
The arm 24 protrudes outside the outer cylinder 2 and is pivotally supported by a bearing 23 fixed to the outer cylinder 2.

22 is an electromagnetic device and its actuator is connected to the arm 24.

Therefore, when the electromagnetic device 22 is energized, the lever 19 moves to the pulley 20.
The sliding cylinder 14 is pushed up against the spring 18 through the spring 18, and when the magnetic excitation is cut off, the end face of the sliding cylinder 14 is joined to the fixed inner cylinder 13 by the spring 18. On the other hand, as shown in FIG. 4, in the lower tube line mooring release device 4, the other pivoted end Ta of the ramp door T is supported by an L lever 10. It is connected to the actuator. Then, the electromagnetic device 9 is magnetically excited based on the command to release the mooring pipe C,
Rotate the L lever 10 counterclockwise to open the trap door T and drop the mooring pipe line C. When the yarn is thrown out, a spring is provided at the pivot portion of the rope door 11 or the pivot portion of the L lever 10 so that the rope door 7 returns to its original position and maintains the position shown in FIG. Note that these thread mooring and releasing devices 4 may be replaced with other means, and may simply be levers protruding into the inner cylinder 3, or may be operated by an air cylinder. Furthermore, although the sliding movement of the sliding tube 14 is shown to be performed by the electromagnetic device 22 and the lever 19, there is no reason to limit it to these. Alternatively, other pneumatic cylinders may be attached to flange 17. FIG. 9 shows another preferred embodiment using an electromagnetic device, in which the electromagnetic coil 2
5 is formed into an annular shape and is fixedly installed inside the outer cylinder 2, and its actuator 26
It is also formed into an annular shape and connected to the flange 17 of the sliding tube 14 by a connecting rod 27. The biasing spring 28 is attached to the flange ring 2 on the sliding tube 14.
9 may be fixed and interposed between it and the retaining ring seat 15. Since the yarn end catching device of the present invention is constructed as described above, the inner cylinder containing the yarn C moored to the yarn anchoring opening 4 slides with the fixed inner cylinder 13, as shown in FIG. A joining line opening 21 with the cylinder 14 is located, and in the space between the opening 21 and the outer cylinder 2, a decompression chamber connected to the decompression pipe 5 is constituted by a retaining ring 12 and a retaining ring seat 15. However, when sliding of the sliding tube 14 is commanded before discharging the yarn as described above, the sliding tube 14 rises as shown in FIG. 7, the joining line opening 21 opens instantaneously, and the A suction air current is formed around C, and the free end E located around the tube thread is sucked into the decompression pipe 5 side through the opening 21. The free end E has a length of about 10 cm, and since the tube C is not rotated, it is held under suction. Therefore, the opening time of the opening 21 is instantaneous, and the opening 21 immediately returns and closes to clamp the free end E as shown in FIG. Next, as described above, the tarp door 7 opens and the moored tube C is dropped Ct and supplied to the destination, but the discharged tube C'0) yarn end is held between the sliding tube 14 and the fixed inner tube 13 and supplied. be done. When the feeding is completed, the pulled-out yarn is guided to, for example, a yarn end holder using another yarn guide device, and the sliding cylinder 14 is operated again to release the pinched yarn end, or a yarn cutting device (not shown) is used. The continuous yarn may be cut by cutting the continuous yarn, and the cut end held in the opening 21 may be removed via the decompression pipe 5 at the next opening. In this way, the present invention configures a reduced pressure chamber on the outer periphery of the yarn anchoring part of the yarn supply cylinder, and configures a part of the yarn supply cylinder that forms the wall of the reduced pressure chamber to be slidable so that it can be opened and closed. As a result, a strong suction air current is temporarily created around the moored pipe thread, and the free end of the pipe thread can be reliably guided to the opening, and this opening is temporarily opened and closed. It has become possible to reliably hold the free end guided from the pipe, making it extremely easy to process the supply pipe thread. In addition, suction and reduced pressure can be processed at low pressure, and since suction is not performed continuously, operating costs are low, and the mechanism is simply constructed, so that it can be used in conventional pipe supply devices. Although the opening 21 is shown as having a horizontal annular shape, it may also be inclined, chevron-shaped, or
Alternatively, it is also possible to cut only the outer cylinder side of the end of the clamped yarn by using the closure of this joining opening, and if necessary, a filter may be provided in the middle of the decompression pipe 5 to remove the cut end. You can also do this.

[Brief explanation of the drawing]

Fig. 1 is a front view of the present invention applied to a tube supply tube, Fig. 2 is a top plan view of Fig. 1, Fig. 3 is a bottom plan view of Fig. 1, and Fig. 4 is a cutting line in Fig. 2. 4-4, FIG. 5 is a side view with part of the outer cylinder cut away on the right side of FIG. 4, and FIG.
7 is an explanatory diagram of the operation of FIG. 4, FIG. 8 is a partial explanatory diagram of the operation of FIG. 7, and FIG. 9 is another embodiment of the sliding device. It is a sectional view showing an example. 1: Tube supply tube, 2: Outer tube, 3: Inner tube, 4: Tube mooring device, 5: Decompression pipe, 6: Connecting section, 7 Return pull door 8: Starting section, 9: Electromagnetic device, 10: Lever 1 11: Pivotal support, 12: Retaining ring, 13: Fixed inner cylinder, 14: Sliding cylinder, 1
5: Retaining ring seat, 16: Insertion part, 17: Flange, 18:
Spring, 19: Lever 20: Pulley, 21: Opening, 22
: Electromagnetic device, 23: Bearing, 24: Arm, 25: Annular electromagnetic device, 26: Operator, 27: Connecting rod, 28: Spring, 29: Flange ring.

Claims (1)

[Claims] 1. A tube supply device equipped with a yarn end catching device that individually receives tube yarns with winding ends formed freely on the outer surface and discharges the tube yarns while capturing the free yarn ends of the received tube yarns. an upper fixed cylinder having a passage passage airtightly provided inside the outer cylinder;
It is formed of a lower fixed cylinder and a sliding cylinder which has a gap between the fixed cylinder end face and the fixed cylinder and is fitted to the lower part of the upper fixed cylinder, and the sliding cylinder is always connected to the end face of the lower fixed cylinder. An opening/closing ramp door for holding and discharging the yarn is provided on the yarn outlet side of the lower fixed tube, and a decompression pipe is connected to a part of the outer tube to open and close the lower fixed tube. A decompression chamber is formed in the outer cylinder at the joint between the sliding cylinder and the sliding cylinder, and by sliding the sliding cylinder upward, the yarn end of the holding tube is sucked from the gap between the lower fixed cylinder and the sliding cylinder. 1. A pipe yarn feeding device with a yarn end catching device, characterized in that the yarn end is gripped by returning to its original position.