JPS6015361A - Automatic string hooking method - Google Patents

Abstract

PURPOSE:To enable high speed processing, when hooking a string automatically to a string roller group, by performing catching of traction holding of string through a high speed rotary member fixed to the operating section of a moving system having operational function of higher than two freedom. CONSTITUTION:A string Y spinned out from a base metal 1 is extended through feed rollers 3, 4 and developing rollers 5a, 5b, 6a, 6b then wound over a winding member 9 through a traverser 7. Here, the string Y is wound over a high speed rotary member or a west spool 12 at random position on the string travel path then pulled and hooked to each roller 3-6 or winding member 9. The west spool 12 is mounted onto the operating section of a robot enable of three dimensional motion. Said spool 12 is constituted of a movable chip holder 15 secured to the drive rotary shaft 14, movable chip 16 enable of radial motion to be mounted on said holder 15 and a cover 21 to catch the string Y end at the notch 17.

Description

DETAILED DESCRIPTION OF THE INVENTION A) Technical field of the present invention The present invention relates to an automatic yarn system that automatically threads objects such as a roller group and a yarn winding body in a yarn winding process. This concerns the hanging method.

(1) Description of the prior art As a method for automatically threading an object, as shown in Japanese Patent Publication No. 57-59180, etc., there is a method in which a robot moves a Zakujon gun that suctions and holds the thread. is proposed.

This method has the advantage that it can be easily applied to current equipment because a commonly used suction gun is used in threading work, but it also has the following disadvantages associated with suction guns. .

■ When the yarn running speed becomes high, the yarn suction ability decreases, making it difficult to carry out the prescribed threading operation.

■ When catching a running yarn, it is extremely difficult to cut the yarn or suction the cut yarn.

As a yarn holding means that solves the above-mentioned disadvantages of the suction gun, Japanese Patent Publication No. 49-22848 proposes a waist spool that winds a yarn around a rotating body and pulls and holds the yarn.

However, in this method of threading using a waist spool, since the waist spool is a large-sized device,
Unlike the threading method using a suction gun, the thread is not moved while suctioning the thread, but the thread is pulled by a waist spool fixed to a machine base such as a thread winder. This is a means of moving the rows manually.

c) Purpose of the present invention The present invention provides a highly reliable automatic threading method that eliminates the drawbacks of the automatic threading method using a suction gun as described above and makes maximum use of the advantages of the waist spool. That is.

2) Structure of the present invention In order to achieve the above object, the present invention has the following structure. That is, a group of yarn processing rollers or a yarn winding body,
Alternatively, in a method of automatically threading an object to be threaded on a winding body connected to a roller group such as a group of yarn processing rollers, the capturing of the yarn or the pulling and holding of the yarn is performed with at least two degrees of freedom or more. This automatic threading method is characterized in that it is carried out using a high-speed rotary body attached to the operating section of a moving device having the following operational functions.

E) Embodiments of the present invention Next, embodiments of the present invention will be described in more detail with reference to the drawings.

FIG. 1 is a schematic diagram showing a direct spinning draw-winding machine which is an example of a yarn processing machine to which the automatic threading method according to the present invention is applied.

In the figure, a yarn Y is spun from a spinneret 1, passes through an oil supply guide 2, passes through a supply roller 3.4, and drawing rollers 5a and 5b.
, 6a, 6b, and then traversed by a traverse device 7, and then wound onto a winding body 9. The roller veil 8 applies surface pressure to the roll 9. Further, the ejector 10 has a function of temporarily sucking and holding the yarn spun from the spinneret. 11 is a cutter, which can be operated as needed.

In this embodiment, (1) the yarn being sucked by the ejector 10 or the yarn traveling between the supply roller 3 and the winding body 9 is moved to the waist spool, which is a high-speed rotating body, at an arbitrary position on the traveling path; The work of winding the yarn around the waist spool 12, catching it and pulling it, and the work of hooking the caught and pulled yarn to the supply roller 3.4, the drawing rollers 5a, 5b16a, 6b, or the winding body 9, etc. This is done by automatically turning and moving based on instructions from the outside without relying on workers.

FIG. 2 is a perspective view showing an example of an apparatus for carrying out the automatic threading method according to the present invention.

As a moving device having a movement function with two or more degrees of freedom, a general robot 13 capable of three-dimensional movement, which is currently employed in the industrial field, can be used (hereinafter, the moving device will be referred to as a robot).

The robot 13 can move in each ABCDE direction indicated by the arrow in FIG. Execute threading to the retrieval body. Note that the robot 13 is movable in the F direction, and can be moved to another spindle as necessary after threading is completed.

Next, FIGS. 3 and 4 are detailed views illustrating the structure of the waist spool 12 in FIGS. 1 and 2, with FIG. 3 being a front view and FIG. 4 being a side sectional view. be. To explain the structure of this waist spool, a movable piece holder 15 is fixed to a rotating shaft 14 connected to a drive source (not shown), and a movable piece 16 that can move radially is attached to the movable piece holder 15. It will be installed. The distal end of the movable piece holder 15 is cylindrical, and a protrusion and a notch 17 are provided at at least one location. The protrusions and notches form an elongated notch that is inclined with respect to the cylindrical opening, and a protrusion that extends from the cylindrical opening to the outside of the opening following the notch.

A metal plate 18 having a thickness of about 0.3 to 0.8 ml is attached to the inner surface of the cylinder in the form of a band so as to stick to the inner surface of the cylinder. The high-speed rotating parts such as the moving piece holder 15 are surrounded by a cover 21 rotatably mounted around the waist spool rotating shaft 14 via a bearing 20 fixed to the frame 19. The cover is provided with at least one opening 22 cut out along the axial direction. The cover has a gear 23 on its outer periphery and is driven via a gear 24 attached to a drive source (not shown) separate from the shaft 14.

Next, in this embodiment, the functions of each part of the waist spool 12 will be explained.

The moving piece 16 is centrifuged by the rotation of the moving piece holder 15.]
It spreads radially in the G direction, and winds and pulls the yarn Y with a large apparent movement 7!1 radius of rotation. When the rotation stops and the movable piece 16 returns to its original position, the radius of rotation of the movable piece becomes smaller than that at the time of pulling, and by an operation such as tilting the spool,
It will automatically detach from the moving piece due to gravity. In this embodiment, the movable piece 16 is made of reinforced plastic, which has a high strength relative to its weight (hereinafter referred to as "high specific strength"), and is used to alleviate excessive centrifugal force acting on the movable piece 16. The waist spool of this embodiment is provided with a high-speed yarn traction ability of 5000 m/min or more.The reinforced plus deck is preferably made of carbon fiber reinforced plastic, which has a particularly high specific strength.

The protrusion and notch 17 provided on the cylindrical end portion of the movable piece holder 15 have the function of hooking the running yarn with the protrusion and guiding it into the cylinder along the notch. The yarn guided into the cylindrical surface is tightly gripped over the entire circumference of the inner surface of the cylinder due to the centrifugal force caused by the rotation of the moving piece holder.

As a result of the above-described actions, the running yarn Y is reliably wound around a high-speed rotating body such as a waist spool, cut, pulled, and captured.

The cover 21 ensures the safety of the operator with respect to the high speed rotating part of the waist spool of this embodiment. The yarn is "introduced" into the high-speed rotating section through an opening 22 provided in at least one location of the cover 21.

The opening 22 has the function of hooking the yarn with the protrusion and notch 17 and winding it around the high-speed rotating section, and allowing the yarn that has been wrapped around the rotating section and pulled and captured to run through this opening. It has a function of preventing rubbing between the thread Y and the thread Y.

When the automatic threading method according to the present invention is carried out, the opening 22 and the yarn running position change due to the rotational movement of the waist spool, causing strain between the opening periphery and the yarn, causing the yarn to become loose. There is a concern that it may cause breakage. In this embodiment, the cover 21 is rotatably mounted around the rotating shaft of the cloth spool and is driven via the gear 23 so that the relationship between the rotating part 22 and the yarn running position is constant. It is possible to prevent the occurrence of thread breakage. The drive source for the high-speed rotating section is a DC motor with a pulse encoder, and the position and speed are controlled simultaneously with each axis of the robot's drive section. Note that the method for driving the high-speed rotating part is not limited to this embodiment; for example, the cover and the fixed part of the robot may be mechanically connected with a chain or the like, and the position of the cover frontage may be adjusted to the rotation movement of the robot 1 to the drive part. It is also possible to consider a mechanism that maintains a constant value regardless of the situation.

f) As described in detail of the present invention, since the present invention has the above-described structure and operation, it has the following effects.

(i) By attaching a high-speed rotary body to the operating section of the robot and performing automatic threading 1), it has become possible to thread thread at a thread running speed of 5000 m/min or more.

(11) By pulling and capturing the yarn with a high-speed rotating body, it is possible to hold and pull the yarn more stably than with conventional Zakujon guns, and the reliability of automatic threading using a robot is significantly improved. Improved.

(i) By attaching a high-speed rotating body to the operating section of the robot, the yarn can be wrapped around the high-speed rotating body and captured by automatically moving the high-speed rotating body close to the running yarn. especially,
When a yarn catching mechanism such as a protrusion or a band-shaped metal plate is provided at the tip of the high-speed rotating body, the yarn can be caught more reliably, and the reliability of automatic threading is significantly improved.

(~) By attaching a high-speed rotating body to the robot,
Since the yarn traveling at high speed can be reliably captured, the yarn can be captured at any position between the robot group and the winding body connected to the O-ra group and re-threaded on the winding body. Therefore, the threading time can be shortened, leading to a reduction in waste thread charges, etc.

(V) By using a high-speed rotating body, there is no need for high-pressure air like in a Zakujon gun, which is advantageous in terms of utility. Also, since no compressed air is used, there is less noise.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing a direct spinning drawing and winding machine as an example of a yarn processing machine to which the automatic threading method according to the present invention is applied, and FIG. A perspective view showing an example of the structure of the covering equipment, and FIGS. 3 and 4 are a front view and a side sectional view, respectively, showing the high-speed rotating part in FIG. 2. Explanation of symbols 1: Mouthpiece 2 = Oil supply guide 3.4: Supply rollers 5a, 5b, 6a, 6b: Rubber attachment to yarn processing roller 7:1 @ 9: Winding body 12: High speed rotating body 13: Robot l- 15: Moving piece holder 16: Moving piece 17: Projection and notch 18; Metal plate
21: Cover Y: Thread Patent Applicant Toshi Co., Ltd. Figure 1 Figure 2 Figure 5 Figure 8 Figure 4 Procedure Tadashi Nyama a) Showa era 8.8th. Hijimochi 8'f Director-General, Mr. Kazuo Sugi 1, IX 1 Which relationship is special?
1-Detailed description of the invention-1 (Oka (13 and Figure 1'1 of the drawings) 4 7.7ili In the correct content description, (1) Page 6, line 8, ``forms a protrusion.'' is corrected to ``It consists of one protrusion.'' (2) Page 8, line 11, `` Winding (-j or 1 number and,)
and a function of introducing the thread into the protrusion and the notch when "winding" the thread. (3) “Figure 1” in the drawings will be corrected as attached.

Claims (1)

[Claims] In a method of automatically threading a yarn processing roller group, a yarn winding body, or a threading target object of a yarn processing roller group and a winding body connected to the yarn processing roller group, An automatic threading method characterized in that the capturing or pulling and holding of the thread is carried out by a high-speed rotary body attached to the operating section of a moving device having an operation function with at least two degrees of freedom or more.