JPH06156877A - On-bobbin residual thread removing device - Google Patents

Abstract

PURPOSE:To efficiently carry out the residual thread removal processing by removing the residual thread left in a wound state on a bobbin through melting. CONSTITUTION:A bobbin transport device 5 transports a residual thread bobbin in a held state (bobbin on which the residual thread 2 is wound) 3a to a residual thread melting processing part, and then stops the bobbin temporarily. The injection pipe 45 of a redidual thread melting device 6 advances toward the residual thread bobbin 3a in stop state, and an injection port 47 approaches one edge side of the outer surface of the residual thread 2. In this state, the injection pipe 45 shifts from one edge side of the outer surface of the residual thread 2 toward the other edge side, jetting the hot air from the injection port 47, and the taken-up residual thread 2 is graually melted from one edge side according to the shift. Accompanied with the advance of the injection pipe 45, also the suction pipe 55 of a residual thread suction device 7 is advanced at a proper time, and the residual thread in a molten state is suction-removed. Accordingly, the removal processing for the residual thread 2 wound on the bobbin 3a can be carried out with a high efficiency.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bobbin residual thread removing device for fusing and removing residual thread wound around a bobbin.

[0002]

2. Description of the Related Art When a bobbin wound with a twisted yarn is set on a creel of a loom or a knitting machine for weaving or knitting, the yarn of the bobbin cannot be used up to the end because it is necessary to maintain a required thread tension. Since twisting tends to occur at a part from the beginning of winding the yarn on the bobbin due to
There was no choice but to leave a certain amount as residual thread. Such residual yarn must be removed before the new twist yarn is wound on the bobbin.

Conventionally, the residual yarn is cut and removed by using a cutter knife, or the yarns manually fed from several bobbins are collected and removed by a winding machine. .

[0004]

However, in the residual thread removing process, the one using a cutter knife relies entirely on the manual work, and even the one using the winder has a large proportion of the manual work. The efficiency was very poor. It is an object of the present invention to provide a bobbin residual thread removing device that automates the bobbin residual thread removal processing to achieve labor saving.

[0005]

In order to solve the above problems, the present invention employs the following means. That is, the bobbin residual thread removing device according to the present invention has a holder 11 for holding the bobbin by inserting it into the tube hole 15 of the bobbin around which the residual thread is wound, and retains the bobbin retained by the holder 11 A bobbin transfer device 5 for transferring a yarn to a processing unit 4 for fusing and removing, and temporarily stopping one or more bobbins in the processing unit 4.
And a jet pipe 45 that is connected to a hot air source and jets hot air from a jet port 47 at the tip. The jet pipe 45 is arranged in front of and behind the outer peripheral surface of the winding cylinder 12 of the bobbin in the temporarily stopped state. Further, the ejection pipe 45 can be moved from one end side to the other end side of the wound residual yarn in a forward state where the ejection port 47 is close to the outer surface of the wound residual yarn. An outer peripheral surface of the bobbin winding cylinder 12 is provided with a residual thread fusing device 6 for fusing the wound residual thread of the bobbin over its entire width by hot air ejected from 47, and a suction pipe 55 connected to a suction source. In contrast, the suction port 53 is in a state of approaching the outer peripheral surface of the winding cylinder 12 in the forward movement state, and is provided with a residual yarn suction device 7 for sucking the fused residual yarn. It is a thing.

In the bobbin residual thread removing device according to the present invention, it is preferable that the ejection port 47 can be adjusted to be close to the outer peripheral surface of the winding cylinder according to the diameter of the winding cylinder of the bobbin and the amount of residual thread.

The jet port 47 is preferably formed in a flat shape that is long in the lengthwise direction of the bobbin, and the suction port 53 is preferably formed in a flattened shape over substantially the entire width in the lengthwise direction of the bobbin.

Further, the ejection pipe 45 is pivotally attached to a supporting base 19 which reciprocates in the lengthwise direction of the bobbin so as to be rotatable in a plane including the axis of the bobbin, and the pivoting action urges a spring member. It is better to be done against.

[0009]

In order to melt and remove the residual thread of the bobbin by the bobbin residual thread removing device according to the present invention, the holder is provided in the tube hole 15 of the bobbin 3 around which the residual thread 2 is wound (hereinafter referred to as residual thread bobbin 3a). 11 is inserted to hold the residual yarn bobbin 3a in the holder 11 (FIG. 1). The bobbin transfer device 5
A processing unit 4 for fusing and removing the retained residual thread bobbin 3a.
And is temporarily stopped in the processing section 4. The ejection pipe 45 advances toward the stopped residual yarn bobbin 3a, and its ejection port 47 approaches one end side 52a of the outer surface of the residual yarn (FIG. 7). In this state, the ejection pipe 45 is connected to the ejection port 47.
It moves toward the other end side 52b of the outer surface of the residual yarn while ejecting more hot air, and as it moves, the wound residual yarn 2 is gradually fused from one end side (FIG. 9). Along with the advance of the ejection pipe 45, the suction pipe 55 also advances at an appropriate time to suck and remove the melted residual yarn (FIG. 8).

A bobbin 3 has collars 1 on both ends of the winding cylinder 12.
In the case of having the nozzles 3 and 13, when the tip end portion of the ejection pipe 45 hits the inner surface portion of the brim and is overshooting as shown by the one-dot chain line in FIG. 7, the ejection pipe 45 is a spring member (for example, a leaf spring 49). Since it is possible to rotate without difficulty against the urging action of, the collar and the ejection pipe are prevented from being damaged.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1, a bobbin residual yarn removing device 1 according to the present invention
Is a residual thread bobbin (bobbin 3 around which the residual thread 2 is wound) 3
A bobbin transfer device 5 for moving a to the processing unit 4 for fusing and removing the residual yarn, a residual yarn fusing device 6 for fusing the residual yarn wrapped around by hot air, and a residual yarn suction device 7 for aspirating the fusing residual yarn. It is equipped with. This will be described in more detail below.

As shown in FIGS. 1 and 2, the bobbin transfer device 5 includes a disk-shaped rotary support plate 9 and a rotary drive device 1.
0 is configured to rotate at low speed in the horizontal plane,
A holder 11 for holding the bobbin 3 is provided upright on the peripheral portion of the upper surface of the rotation support plate 9 at an equal angular pitch. As the bobbin 3, for example, as shown in FIG. 1 and FIG. 3, a bobbin with a collar in which collars 13 and 13 are provided around the upper and lower ends of a cylindrical winding drum 12 is used, and the holder 11 is As shown in FIG. 1 and FIG. 7, there are receiving portions 16 and 16 above and below the column portion 17, which are closely fitted to the inner peripheral surface of the tube hole 15 of the bobbin. Further, the rotation driving device 10 transfers the residual yarn bobbin 3a held by the holder 11 and placed on the rotation support plate 9 to the processing section 4 by the rotation of the rotation support plate, and this is transferred to the processing section 4. 4 is temporarily stopped, and after the residual yarn fusing device 6 melts the residual yarn and then the residual yarn suction device 7 removes the residual yarn, the next residual yarn bobbin is intermittently rotated so as to be transferred to the processing section 4. Exercise.

As shown in FIGS. 3 to 5, the residual yarn fusing device 6 has a support base 19 protruding in the radial direction of the rotary support plate 9.
Are vertically movably guided by a vertical plate 20 standing upright near the outer peripheral edge of the rotation support plate 9. As shown in FIG. 5, the support base 19 has a dovetail-shaped engagement projection in which a dovetail-shaped engagement groove 21 provided at the base end is provided vertically on the front surface side of the vertical plate 20. L-shaped bent portions 25, 25 at the rear ends of the side pieces 23, 23 that fit with the vertical plate 20 and project rearward with the vertical plate 20 sandwiched therebetween are provided on the rear surface side of the vertical plate 20 in the vertical direction. Guided by the grooves 26, 26,
It can move up and down. Further, a timing belt 30 is wound around belt wheels 27 and 29 provided above and below the front surface of the vertical plate 20, and the lower belt wheel 29 is fixedly mounted on a rotary shaft of an electric motor 31 that rotates at a low speed in forward and reverse directions. (Fig. 3).
Further, one side piece 23a is fixed to one of the vertical running portions 33 of the timing belt via a fixing metal fitting 32 (FIG. 5), and the support base 19 is restricted by various switches such as a limit switch (not shown). The timing belt 30 moves up and down according to the forward and reverse rotation operations of the timing belt 30.

As shown in FIG. 4, a movable member 36 is guided by parallel guide shafts 35, 35 on the support base 19.
A slide type air cylinder 37 that moves back and forth in the radial direction of the rotation support plate is fixed, and a mounting frame 39 is fixed to the upper surface of the movable body. The mounting frame 39 is a horizontal plate 40.
Side plates 41, 41 are erected on both side edges of the horizontal plate 40.
Bearings 42, 42 are provided on both sides of the central portion of the bearing so as to face the side plates. Then, in one of the bearings and the rotating shaft 43 axially supported by the side plate facing the one bearing, and in the other bearing and the rotating shaft 43 axially supported by the side plate facing the other bearing, the protruding portion 43a from the side plate, Remaining thread bobbin 3 in a suspended state
A rear end side portion 45a of the ejection pipe 45 protruding toward the outer surface of the residual yarn of a is fixed via an arm member 46. The jet pipe 45 is connected to a hot air source (not shown) for sending hot air under pressure, and the jet outlet 47 at the tip has a flat shape elongated in the longitudinal direction of the bobbin. The ejection pipes 47, 47 fixed in this way and facing left and right are rotatable in a vertical plane, and are forward and backward with respect to the adjacent residual yarn bobbins 3a, 3a in the processing unit 4 which are in a suspended state. It is possible to proceed (Fig. 2).

A central portion of a leaf spring 49 extending in a direction orthogonal to the axis of the rotary shaft 43 is fixed to the upper surface of the pivot shaft 43 with a screw, and both end portions 50, 50 of the leaf spring 49 are horizontal. It is supported by the heads 51 of the bolts set up on the plate 40 (FIGS. 4 and 7). As a result, the ejection pipe 47 is in a substantially horizontal state in the free state, and is rotatable as shown by the one-dot chain line in FIG. 7 against the biasing action of the leaf spring 49 received by the head portion 51. ing.

The movable body 36 of the slide type air cylinder 37 is in a forward state in which the ejection port 47 of the ejection pipe 45 is close to the outer surface 52 of the residual yarn, as shown in FIG. Is slightly separated from the collar 13 of the bobbin.
Moves back and forth between the retracted state shown in. In addition, the spout 47
The upper end portion 52a and the lower end portion 52b of the outer surface of the residual yarn shown in FIG.
The timing belt 30 so as to reciprocate between
The vertical movement of the support base 19 is restricted.

As shown in FIGS. 2 and 3, the residual thread suction device 7 has a flat suction port 53 which is connected to a suction source (not shown) and extends over substantially the entire width of the bobbin in the longitudinal direction. It has a suction tube 55. The suction pipe 55 is attached to a movable body 60 of a slide type air cylinder 59 having the same structure as the above, which is fixed to an upper end portion of a column 56 standing upright on a side portion of the ejection pipe 45. It moves forward and backward according to the forward and backward movement of the body 60. In the forward movement state shown in FIG. 8, the suction port 53 approaches the outer peripheral surface 61 of the bobbin winding cylinder,
Aspirate the blown residual thread. Then, after the suction is completed, as shown in FIG. 6, it is retracted from the bobbin. In this embodiment, since the jet port 47 and the suction port 53 are provided adjacent to each other, the residual yarn is sucked after the wound residual yarn is completely melted so that the fusion cutting can be stably performed. Good.

FIG. 10 illustrates another embodiment of the bobbin residual yarn removing device according to the present invention. In the bobbin transfer device 5, the retainer holding the residual yarn bobbin 3a removes the residual yarn by fusing. The processing unit 4 to be crossed is linearly crossed, and the bobbin is temporarily stopped in the processing unit 4. Further, the jetting pipe 45 which constitutes the residual yarn cutting device 6 and the suction pipe 55 which constitutes the residual yarn suction device 7 are arranged so as to face each other with the residual yarn bobbin 3a interposed therebetween. It has the same configuration as in the embodiment. In this embodiment, since the ejection port 47 and the suction port 53 face each other with the residual thread bobbin 3a interposed therebetween, there is no possibility that the fusion cutting becomes unstable even if the residual thread suction is started at the same time when the fusion cutting is started. Therefore, the residual yarn can be sequentially sucked by the amount that has been melted, and the time loss can be eliminated and the residual yarn removal process can be made more efficient than when the residual yarn is sucked after the wound residual yarn is completely melted. .

[0019]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, it is possible to automate the fusing work of the residual yarn and the removal work of the fused residual yarn, which is wound on the bobbin as compared with the conventional manual work. It is possible to significantly improve the removal efficiency of the residual thread attached.

[Brief description of drawings]

FIG. 1 is an overall perspective view illustrating a bobbin residual yarn removing device according to the present invention.

FIG. 2 is a plan view for explaining a bobbin transfer device, a residual yarn fusing device, and a residual yarn suction device together with their operations.

FIG. 3 is a perspective view illustrating a bobbin transfer device, a residual yarn fusing device, and a residual yarn suction device.

FIG. 4 is a perspective view illustrating a main configuration of a residual yarn fusing device.

FIG. 5 is a perspective view illustrating a mounting state of a support base on a vertical plate and a timing belt.

FIG. 6 is a plan view for explaining a state in which a wound residual yarn is melted and the ejection pipe approaches a residual yarn bobbin.

FIG. 7 is a side view for explaining the movement of the suction tube in the vertical direction when the residual yarn is melted.

FIG. 8 is a plan view illustrating a state where the suction tube is close to the bobbin and the residual yarn is being sucked.

FIG. 9 is a perspective view illustrating a blown state of the wound residual yarn by the residual yarn fusing device.

FIG. 10 is an explanatory view illustrating another embodiment of the bobbin residual yarn removing device according to the present invention.

[Explanation of symbols]

 1 Bobbin Residual Thread Removal Device 2 Residual Thread 3 Bobbin 3a Residual Thread Bobbin 4 Processing Section 5 Bobbin Transfer Device 6 Residual Thread Fusing Device 7 Residual Thread Suction Device 11 Holding Tool 12 Winding Cylinder 15 Tube Hole 19 Support Stand 45 Jet Tube 47 Jet Outlet 53 Suction port 55 Suction tube

Claims (4)

[Claims] 1. A bobbin tube hole 15 around which residual thread is wound.
Having a holder 11 for holding the bobbin by inserting the bobbin into the processing section 4 for transferring the bobbin held by the holder 11 to the processing section 4 for fusing and removing the residual yarn, and temporarily stopping the bobbin in the processing section. An apparatus 5 and an ejection pipe 45 which is connected to a hot air source and ejects hot air from an ejection port 47 at the tip are provided with respect to the outer peripheral surface of the bobbin winding cylinder 12 in the temporarily stopped state. And can be moved forward and backward, and the jet pipe 45 can be moved from one end side to the other end side of the wound residual yarn in a forward state in which the jet outlet 47 approaches the outer surface of the wound residual yarn, Residual yarn fusing device 6 configured to fuse the wound residual yarn of the bobbin over its entire width by the hot air ejected from the ejection port 47.
And the suction tube 55 connected to the suction source to the bobbin winding cylinder 12
It is possible to move forward and backward with respect to the outer peripheral surface of the device, and in its forward state, the suction port 53 comes close to the outer peripheral surface of the winding drum 12 and the residual yarn suction device 7 for sucking the fused residual yarn is provided. Characteristic bobbin residual thread removing device. 2. The bobbin residual yarn removing device according to claim 1, wherein the approaching state of the ejection port 47 with respect to the outer peripheral surface of the winding drum can be adjusted according to the diameter of the winding drum of the bobbin and the amount of residual yarn. 3. The bobbin residual yarn removing device according to claim 1, wherein the jet port 47 has a flat shape that is long in the lengthwise direction of the bobbin, and the suction port 53 has a flat shape that extends over substantially the entire width in the lengthwise direction of the bobbin. . 4. An ejection pipe 45 is pivotally attached to a support base 19 that reciprocates in the lengthwise direction of a bobbin so as to be rotatable in a plane including the axis of the bobbin, and the pivoting action biases a spring member. The bobbin residual yarn removing device according to claim 1, wherein the bobbin residual yarn removing device is made against the action.