JPH0637253U - Thread end device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a yarn end lead-out device for a yarn spinning machine or the like that does not require an automatic lead-out device. [Structure] An upper air sucker 4, a roller 3 which is activated by a switch to rotate the tray T a predetermined number of times in the bobbin winding direction, and a yarn lever 1 which moves away from a position where a hook position is slightly lower than an upper end of a bobbin after the roller is stopped.
A head presser 5 urged from the tray carry-out side toward the exit position, a lower air sucker 6 that opens below the exit position and starts suction after the rotation of the yarn lever 1, and a cutter 7 that operates after the suction starts. It has become.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for feeding a yarn end of a yarn supplying package such as a yarn spinning machine.

[0002]

[Prior art]

 A conveyor for unloading and a conveyor for supplying are provided along the front and rear sides of the machine stand, and two side-by-side conveyors are provided on the side of each unit so that the yarn feeding package inserted in the tray can be attached to each unit. A yarn spinning machine capable of automatic supply and discharge has already been developed by the present applicant (Japanese Patent Laid-Open No. 4-28668). The yarn feeding package carried into the conveyor on the side of the unit from the feeding conveyer in this yarn spinning machine has already been fed out at the yarn end by an automatic feeding device.

[0003]

[Problems to be solved by the device]

 However, if the space for mounting the automatic feeding device with a length of 3 to 4 meters cannot be secured, or if the lot changes frequently with cotton yarn, woolen yarn, polyester / cotton blended yarn, filament yarn, etc. When there are various forms of yarn feeding package such as 5 ° 57 ′ paper tube cone, 5 inch wooden tube cheese, etc., there is not much merit to install the automatic feeding device. In these cases, it is better to use the operator's operation to feed the yarn feeding package and feed it to the conveyor on the side of the unit, rather than using the automatic yarn feeding device. There is. In addition, this operation is not necessary frequently and can be sufficiently performed when the yarn supply package is exhausted or when the operator has time.

An object of the present invention is to provide a yarn end leading-out device for a compounding machine or the like that does not need to be equipped with an automatic leading-out device.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the yarn end tipping device of the present invention comprises an upper air sucker, a roller which is activated by a switch and rotates the tray a predetermined number of times in the yarn winding direction, and a hook position which is slightly below the upper end of the bobbin. A yarn lever that moves away from a certain position after the roller stops, a head presser that is urged from the tray carry-out side toward the exit position, a lower air soccer that opens below the exit position and starts suction after the rotation of the yarn lever, and its suction start It consists of a cutter that works later.

[0006]

[Work]

 In the yarn end tapping device configured as described above, when the tray in which the package is inserted enters the tapping position, the head presser comes into contact with the carry-out side portion of the upper end of the bobbin. Then, grasp the yarn end of the package by hand, hook it on the hook of the yarn lever, and let the upper air sucker suck the yarn end. The roller is rotated by the switch operation and the thread is wound around the upper end of the bobbin at an equal pitch. When the lower air sucker operates and the cutter operates, the yarn sucked by the upper air sucker is sucked into the bobbin center hole, and then the tray is carried out. The head presser keeps pressing the thread at the upper end of the bobbin until the tray is carried out, and returns to its original position by being released from the upper end side of the bobbin.

[0007]

【Example】

 With reference to FIGS. 1 to 4, the yarn end leading-out device of the present invention will be described.

[0008] This yarn end tapping device can be moved, for example, along the back of each unit of the yarn spinning machine, and is stopped behind the package supply line provided on the side of each unit, where work is performed. It is operated by a person. This yarn end dispensing device is composed of a yarn lever 1, stoppers 2 and 2 ', a tray rotating roller 3, an upper air sucker 4, a head retainer 5, a lower air sucker 6, and a cutter 7. Has been done. It should be noted that the reason why the surface on which the tray T is placed is inclined as shown in FIG. 2 is that when the stopper 2 described later is unlocked, the package P moves to the adjacent package supply line below in FIG. 3 due to its own weight. And so that they can move. Further, reference numeral 9 is a roller for moving the tray.

The yarn lever 1 has a thread hook 1a at its tip and is rotatably supported by a shaft 1b inclined in two axial directions as shown in FIGS. Normally, it is located at the position 1'close to the bobbin B of the package P at the position where the tray T is placed, and moves to the position 1 at the end of the winding of the yarn end (reference numerals 1 and 1'in FIG. 1, respectively). The yarn levers are located near and away from the bobbin B. The symbols 1a and 1'a are the positions of the thread hooks when the yarn levers are in their respective positions. Is shown).

The stoppers 2 and 2 ′ can be rotated by a suitable actuator between a position in contact with a side portion of the tray T placed at the exit position and a position away from the side, and the stoppers 2 and 2 ′ are shown in FIGS. When the sensor Sw shown in the drawing detects the entry of the tray T, it rotates to the tray side and locks the tray T.

The tray rotating roller 3 is provided on the side where the tray T is placed at the feeding position and on the opposite side of the stoppers 2 and 2 ′, and is pushed after the stoppers 2 and 2 ′ lock the tray T. By pushing a button, the tray T is rotated in the direction in which the yarn of the package P is wound. Note that the reference numeral 8 in FIGS. 1 and 3 is a bearing for facilitating the rotation of the tray T.

The upper air sucker 4 is installed with the suction opening 4a located above the mouth opening position. Then, when the sensor Sw detects the entry of the tray T, the suction is started, and the suction is stopped after the operation of the cutter 7.

The head presser 5 is rotatably supported by a head presser support 10 fixed to a frame by a support shaft 11, and a relatively weak torsion spring 12 surrounding the support shaft 11 allows the head presser 5 to move from the tray unloading side to It is urged toward the upper end of the bobbin, which is placed at the exit position. Therefore, the head presser 5 comes into contact with the upper end side of the bobbin B at the same time when the tray T enters the exit position, and when the tray T is unloaded after the thread end is unloaded, the bobbin B moves along with the unloading of the tray T. Then, the bobbin B is pushed back against the force of the torsion spring 12 and is released from the upper end side of the bobbin B to return to the original position.

As shown in FIG. 4, the tip end portion of the head presser 5 is composed of two plates 5a and 5b which are partially overlapped with each other and are arranged above and below. The yarn wound around the upper end of the bobbin is pressed by 5a, and the yarn Y is guided to the center hole position at the upper end of the bobbin by the upper plate 5b. The tip of the upper plate 5b is bifurcated in order to easily guide the yarn Y to the center hole position at the upper end of the bobbin.

The lower air sucker 6 is opened just below the center of the spout position, starts sucking after the yarn lever 1 is far from the bobbin B, and stops after the yarn end is sucked into the bobbin center hole. To do. Incidentally, 6a is a shutter box for stopping the suction of air.

The cutter 7 is provided below the opening 4a of the upper air sucker 4 and operates immediately after the lower air sucker 6 starts suction.

The lead-out process by the yarn end lead-out device configured as described above is performed as follows.

First, when the yarn end ejection device is stopped behind the package supply line of the unit that requires the package P and the tray T with the package P inserted therein is placed on the carry-in side, the tray T is ejected by the roller 9. It moves to the position and is stopped by the stoppers 2 and 2 '. At that time, the head retainer 5 is in contact with the carry-out side portion of the upper end of the bobbin B. Then, the yarn end of the package P is found out by hand, grasped, and hooked on the hook 1'a of the yarn lever 1 '. Then, the yarn end is manually carried to the upper air sucker 4 and sucked. In this way, the length of the yarn Y sucked into the bobbin center hole later is secured. Then, when the switch button is pressed, the tray rotating roller 3 starts rotating. At this time, since the hook 1'a of the yarn lever 1'is located slightly below the upper end of the bobbin B as shown by the dotted line in FIG. 1, the winding direction of the package P by the rotation of the tray rotating roller 3 is increased. By the rotation, the yarn Y is wound around the upper end of the bobbin in the direction of the arrow while being wound at an equal pitch, and is partially held by the head retainer 5. When the tray rotation roller 3 stops after rotating about eight times, the upper air sucker 4 stops. When the yarn lever 1'moves to the two-dot chain line position 1 in FIG. 2, the lower air sucker 6 starts sucking, and then the cutter 7 operates to cut the yarn Y sucked by the upper air sucker 4, The yarn Y is sucked by the lower air sucker 6 and sucked into the bobbin center hole. After that, the stoppers 2 and 2'are released, and the tray T is moved to the carry-out side by the roller 9, but the head retainer 5 is pushed away against the force of the torsion spring 12, and the yarn is struck at the upper end of the bobbin B during that time. The work clamp continues to be held and returns to its original position by being released from the upper end of the bobbin B. Therefore, the head presser 5 holds the yarn until the package P exits the yarn end outlet device, and even if the suction of the lower air sucker 4 is stopped by the shutter box 6a, there is a residual pressure of the suction air. , The yarn end is not sucked in continuously.

[0019]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects.

That is, since it is not necessary to provide a very large automatic yarn end leading device, the installation space is saved. It can also handle frequent changes in lots and changes in the form of the yarn supply package. Furthermore, the suction blower for feeding the yarn end can be operated only when necessary, which is a great energy saving. Moreover, it is possible to easily wind the thread around the bobbin head at a constant pitch and hang a thread of a constant length into the bobbin center hole.

Further, since the yarn is continuously held by the head retainer at the upper end of the bobbin until the package is carried out, even if there is a residual pressure of sucked air after the suction of the lower air sucker is stopped, the yarn end It is no longer sucked into the bobbin center hole. Therefore, the subsequent processing such as rewinding can be smoothly performed.

[Brief description of drawings]

FIG. 1 is a rear view of a yarn end leading-out device according to the present invention.

FIG. 2 is a side view of the yarn end leading-out device of the present invention.

FIG. 3 is a plan view of the yarn end leading-out device of the present invention.

FIG. 4 is a perspective view of a head retainer.

[Explanation of symbols]

 1 Yarn Lever 3 Roller 4 Upper Air Soccer 5 Head Presser 6 Lower Air Soccer 7 Cutter 12 Torsion Spring B Bobbin P Package T Tray Y Thread

Claims (1)

[Scope of utility model registration request] 1. An upper air sucker, a roller which is activated by a switch and rotates the tray in a winding direction for a predetermined number of times, a yarn lever which moves away from a position where a hook position is slightly lower than an upper end of a bobbin after the roller is stopped, and a tray unloading side. A yarn end feeding device comprising a head presser urged toward the feeding position, a lower air sucker that opens below the feeding position and starts suction after the rotation of the yarn lever, and a cutter that operates after the suction is started.