JPH03186571A - Yarn winding device - Google Patents

Abstract

PURPOSE:To improve the rate of success in thread guard and the rate of success in automatic changeover by providing a regulating guide so that it can enclose a thread path in cooperation with a thread guide at the position close to a thread holding means provided at a bobbin, thereby preventing thread fluffing and thread breakage. CONSTITUTION:A turret table 1 rotates clockwise, and when a thread removing guide 10 advances in the C direction to remove a thread Y from rotary blades 9a, 9b at its front end. A guide 13 is then moved on a bracket 31 in the E direction by the movement of a cylinder 23, and the thread Y is received by a portion 13a to be removed in the E direction. During that time, a lever 26 is moved integrally with the guide 13 in the E direction. When the guide 13 reaches close to its stroke end, the cam face part of the lever 26 strikes a stopper 25 on the right end of the bracket 31, the lever 26 is then moved counterclockwise around a pin 20 to move a regulating guide 14 in the opposite direction to E, and a projection 14a part encloses the thread path of the thread Y by both portions 14a, 13a, and 13b in cooperation with the portion 13, and thereby the thread Y is regulated to the end face position of a package 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a yarn winding device, and more specifically, to a yarn winding device, and more particularly, to a yarn winding device, and more particularly, to a yarn winding device, and more particularly, to forming a transfer coil, and winding a yarn to a yarn gripping means such as a yarn gripping groove of a bobbin. The present invention relates to a yarn winding device that allows people to smoothly operate a yarn winding device.

[Conventional technology]

A device for forming a transfer coil and inserting a thread into a thread gripping groove formed on a bobbin is disclosed in Japanese Patent Application Laid-open No. 57
Publication No. 85764 discloses that a traverse guide is provided on the upstream side of a bobbin attached to a bobbin holder in the thread running direction, and a thread removal guide is further provided on the upstream side, and a position facing the traverse guide with the running thread in between is provided. It is disclosed that a thread shifting guide having a thread shifting groove that can approach and separate from the running yarn is provided.

Incidentally, in recent years, the speed of winding machines has been increased, and a method of traversing yarn by rotating a blade as disclosed in Japanese Patent Application Laid-Open No. 1-176786, for example, has been adopted as a traversing device for the yarn. It's coming.

[The problem that the invention aims to achieve]

In such a traversing device that rotates blades, when forming a transfer coil or inserting a yarn into a yarn gripping groove of a bobbin, the method disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 57-85764 is used. When the conventional method was adopted, the following problems occurred.

According to the above-mentioned conventional method, the distance between the circle drawn by the tip of the rotating blade and the thread path when the thread traverses is large. For this reason, as shown in FIG. 8, the traverse guides 9a, 9b
When removing the yarn Y from the traverse guides 9a, 9
The distance from the tip of b until the yarn is completely removed increases, and the contact angle of the yarn between the thread removal guide and the thread collection guide becomes large until the yarn reaches the full position provided in the thread collection guide. Become. This causes the problem that the yarn is strained, causing fluff and breakage in the yarn, reducing the success rate of threading.

The above phenomenon becomes more noticeable as the yarn winding speed increases, and at winding speeds exceeding 5000 m/min, threading or automatic yarn switching becomes impossible.

[Object of the Invention] Therefore, the present invention reduces the amount of straining of the yarn when the yarn removal guide removes the yarn from the traverse guide, prevents the yarn from fuzzing and yarn breakage, and improves the success rate and automatic thread hooking. The purpose is to improve the switching success rate.

[Means to accomplish the task]

In the present invention, a bobbin equipped with a thread gripping means is mounted on a bobbin holder, a traverse device is provided upstream of the bobbin holder in the yarn running direction, and further upstream of the traverse device, a thread is provided to separate the yarn from the traverse guide of the traverse device. In addition to providing a removal guide, a thread guide movable in the axial direction of the bobbin holder is provided at a position facing the traverse guide across the running thread and near the traverse end on the opposite side to the thread gripping means provided on the bobbin. The above object is achieved by a yarn winding device characterized in that a regulating guide is provided near the yarn gripping means and cooperates with the yarn guide to surround the yarn path.

[For production]

In the present invention, a thread guide movable in the axial direction of the bobbin holder is provided near the traverse end on the opposite side of the thread gripping means provided on the bobbin when viewed in the axial direction of the bobbin, and the thread guide is provided near the thread gripping means. In cooperation with the government, a regulation guide has been set up to surround the thread path. removing the thread from the traverse skite by a thread removal guide, guiding the thread by the thread guide near the traverse end opposite to the thread gripping means, and surrounding the thread path with a thread guide and a regulating guide near the thread gripping means of the bobbin; The thread that is surrounded by the thread guide and the regulation guide and runs on the thread path is held by the thread gripping means. After that, while the yarn path is regulated by the yarn guide and the regulation guide, the yarn to be wound onto the bobbin is moved toward the center of the traverse to form a transfer coil, and then the regulation guide is retracted within the traverse width to allow the yarn to be wound on the bobbin. The thread is released from the thread guide and traversed by the traverse guide.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to drawings showing embodiments of the invention.

FIG. 1 is a front view of an automatic switching winding machine incorporating the device of the present invention, and FIG. 2 is a view taken along arrow A in FIG. 1, with the bracket 31 omitted in the left half of the figure. 3 and 5 show front views during yarn switching.

FIGS. 4 and 6 show views in the direction of arrow A during yarn switching.

In FIG. 1, two bobbin holders 2.3 are rotatably protruded from a turret table 1, and the turret table 1 is rotatably incorporated into a machine frame F via a bearing (not shown).

Each bobbin holder 2.3 has 8 bobbins 4.5
is attached, and the package 6 is wound around the bobbin 5.

A slide block 30 is vertically movably provided above the turret table 1, and a contact roller 7 is rotatably supported by a frame 8 protruding from the slide block 30.

A traverse device W9 is disposed above the contact roller 7, and the traverse device 9 is rotatably provided with rotating blades 9a and 9b, and the yarn Y is traversed by the blades 9a19b.

Above the traverse device 9 are rotating blades 9a, s9b,
A thread removal guide 10 for removing the thread Y from the thread is connected to the piston rod 12a of the fluid pressure cylinder 12 and
It is provided so that it can be slid in the direction.

On the right side of the contact roller 7, a frame 8' is protruded from the slide block 30 with the thread Y interposed therebetween.
' is provided with a thread guide 1. That is,
A bracket 31 is swingably supported around a pin 31a attached to the frame 8', a thread guide 11 is attached to the lower end of the bracket 31, and a piston of a fluid pressure cylinder 17 is attached to the middle part of the bracket 31. Rod 17a
are connected, and the bracket 31 can swing in the direction of the arrow by the cylinder 17.

Hereinafter, details of the thread guide 11 will be explained with reference to FIG. 2. In FIG. 2, pins 22, 22' are provided protruding from the bracket 31 at intervals in the longitudinal direction, and elongated portions 22a, 22a' formed on the guide 13 and extending in the longitudinal direction are provided on the pins 22, 22'. are engaged, and the guide 13 is movable in the longitudinal direction along the bracket 31.

A hydraulic cylinder 28 is supported by a pin 28 protruding from the bracket 31, and a piston rod 23a of the hydraulic cylinder 23 is connected to the guide 13 via a pin 29. Therefore, the guide 13 is movable in the C direction on the bracket 31 by the hydraulic cylinder 23. Note that a stopper 25 is provided protruding from the right end of the bracket 3.

As shown in FIG. 2, the guide 13 has a right triangular protrusion 13c corresponding to the bobbin mounted on the bobbin holder.
are formed in large numbers, and the outer side of the right-angled apex serves as a portion 13a that receives the yarn.

On the outside of the thread-receiving portion 13a, a canopy-like protrusion 13b that covers the portion 13a is made to protrude from the tip of the protrusion 13c in parallel with the longitudinal direction of the guide 13.

Furthermore, pins 21 and 21' are fixed to the guide 13 at locations adjacent to the elongated holes 22a and 22a'. Further, the regulation guide 14 has elongated holes 21a and 21a'.
It is formed obliquely to the longitudinal direction. The pin 21.21' fixed to the guide 13 and the elongated hole 21a121a' formed in the regulation guide 14 engage, and the regulation guide 14 is moved along the elongated hole 21a121a' in a diagonal direction with respect to the elongated direction of the guide 13. It is movable. Regulation guide 14
A triangular protrusion 14a facing the right triangular protrusion of the guide 13 and facing in the opposite direction is formed on the guide 13.

Near the right end in FIG. 2, as shown in FIGS. 4 and 6, a substantially triangular lever 26 is swingably attached to the guide 13 via a pin 20. As shown in FIGS. Lever 26
A pin 19 is fixedly attached to the control guide 14, and the pin 19 is engaged with a long hole 19a formed in the regulation guide 14. A tension coil spring 30 is hung between the pin 19 fixed to the lever 26 and the pin 18 fixed to the guide 13, and the pin 20 is attached to the lever 26.
It provides rotational force around the.

The operation will be explained below according to FIGS. 1 to 6.

FIG. 1 shows a state in which the yarn Y is being wound up, with the yarn removing guide 10 in the opposite direction C, and the yarn shifting guide 11 retreating in the warp direction and out of the yarn path of the yarn Y. Also, the second
In the state shown in the figure, the guide 13 is moving in the counter-E direction, and the yarn receiving portion 1-3a is located outside the traverse range. As mentioned above, the spring 30 applied between the pin 19 fixed to the lever 26 and the guide 13 applies a force in the clockwise rotation direction to the lever 26, and this rotational force causes the pin fixed to the lever 26 to rotate. 19 to the regulation guide 14 via an elongated hole 19a formed in the regulation guide 14, and the regulation guide 14 is in the retracted position.

When the yarn reaches a predetermined amount of winding, the backup bobbin holder 2 is activated, and when the bobbin holder 2 reaches a predetermined rotation speed, the turret table 1 is rotated by a motor (not shown).

In FIG. 3, the turret table 1 rotates clockwise, then the thread removal guide 10 moves forward in the C direction, and the thread Y is removed from the rotating springs 9a and 9b at its tip. The yarn Y wound around the bobbin holder 3 passes between the yarn removal guide 10 and the package 6. In this state, guide 1
3 is moved in the direction C (FIG. 2) on the bracket 31 by the operation of the cylinder 23, and as shown in FIG. 4, the yarn Y is received by the yarn receiving portion 13a of the guide 13.
It is moved in the C direction (rightward in FIGS. 2 and 4). During this time, the lever 26 and the guide 13 are as if integrated (
(without rotating relative to the guide) in the C direction.

When the guide 13 reaches near its stroke end, the cam surface 26a of the lever 26 collides with the stopper 25 protruding from the right end of the bracket 31 (FIG. 6). The rightward movement of the lever 26 is regulated by the stopper 25, and the rightward movement of the guide 13 causes the lever 26 to rotate to the left (counterclockwise rotation) around the pin 20. By rotating the lever 26 in the counterclockwise direction, the regulation guide 14 is moved in the counter-E direction, and the projection 14a cooperates with the yarn receiving portion 13b, so that the yarn is received by the image portions 14a, ], 3a, and 13b. The Y thread path is surrounded. Thereby, the yarn Y is regulated at the end surface position of the package 6.

Next, as shown in FIG.
Rotating springs 9a, 9b of the yarn traverse 9 by 3b
It is regulated to avoid contact with In this state, the tension coil spring 30 continues to apply a left rotational force to the lever 26.

Further, the turret table 1 rotates clockwise, the bobbin holder 2 moves in the axial direction (counter-E direction), and the bobbin 4
A thread gripping groove (not shown) provided in the package 6 engages with the thread wound on the end surface of the package 6, and the thread Y is punch-wound onto the bobbin 4.

Next, the bobbin holder 2 moves in the C direction, and the cylinder 23
moves backward, the guide 13 and the regulation guide 14 move in the counter-E direction, and a transfer coil is formed on the bobbin 4.

At this time, near the end surface of the package, the yarn Y is regulated by the yarn receiving portion 13a of the guide 13, and the movement width of the yarn is regulated.

When the guide 13 approaches the center of the package 4, the movement width of the yarn is regulated by the protrusion 14a of the regulation guide 14.

Next, when the yarn receiving portion 13a of the guide 13 passes over the center of the package 4, the other cam surface 26b of the lever 26
However, the lever 26 is rotated to the right (clockwise) around the pin 20, and the regulation guide 14 is moved in the F direction, causing the thread to tighten. The yarn Y is released from the guides 13a and 13b, and the yarn starts its traverse movement.

If the yarn is broken and the suction device is used to insert the yarn between the contact roller 7 and the yarn guide 1, the cylinder 17 moves the yarn guide in the D direction and moves the yarn removal guide 10. By moving in direction C,
Make sure that the yarn does not come into contact with the rotating blades 9a and 9b,
Thread can be easily inserted. When the thread breaks, the cover 32
is moved in the C direction by a cylinder (not shown) to cut off the supply of yarn from the upper part, and the yarn rotates.9a19
Prevent it from getting caught in b.

In this embodiment, a winding machine that winds eight packages onto one wooden bobbin holder has been described, but the number of packages formed on one bobbin holder is not limited to that of the embodiment.

In this embodiment, an automatic switching winding machine was explained, but
The present invention can also be implemented on a manual winder in which the yarn is hung by a suction device.

In this embodiment, the regulation guide is actuated by the lever 26, but it may be actuated by any suitable means such as a fluid pressure cylinder or an electromagnetic solenoid.

In this embodiment, after the transfer coil is formed, the yarn is released from the guide 13 after passing the center of the traverse, but if the yarn is to be released before reaching the center of the traverse, as shown in FIG. The side connected to the perpendicular vertex of the guide 13 is straight, and the regulation guide 14 is provided with an eave-like protrusion 14b.
It is recommended to form a

[Effects of the Invention] According to the present invention, even in a traversing device using a rotating spring, the straining of the thread when removing the thread from the thread removal guide is small, so thread fluffing and thread breakage are eliminated, and the switching success rate is improved. , Threading improves the quality.

[Brief explanation of drawings]

FIG. 1 is a front view of an automatic switching winding machine incorporating the device of the present invention, FIG. 2 is a view taken in the direction of arrow A in FIG. 1, and FIGS. 3 and 5 are front views during yarn switching. Figures 4 and 6 show A during yarn switching.
7 is a partial plan view of another embodiment, and FIG. 8 is a partial plan view of another embodiment.
The figure is a front view of a conventional device. 2.3...Bobbin holder, 4.5...Bobbin, 9.
... Traverse device, 10... Thread removal guide,
]1... Thread shifting guide, 13... Guide, 14
...Regulatory guide.

Claims (1)

[Claims] 1. A bobbin equipped with a thread gripping means is mounted on a bobbin holder, a traverse device is provided upstream of the bobbin holder in the thread running direction, and a thread removal guide is further provided upstream of the bobbin holder to separate the thread from the traverse guide of the traverse device. At the same time, a thread guide is provided so as to be movable in the axial direction of the bobbin holder at a position facing the traverse guide across the running thread and near the traverse end on the opposite side to the thread gripping means provided on the bobbin. A yarn winding device characterized in that a regulating guide is provided near the gripping means and cooperates with the yarn guide to surround the yarn path.