JPH07459Y2 - Bobbin holder device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a bobbin holder device in a yarn winding machine.

[Conventional technology]

Conventionally, in a bobbin holder in which the gripping means and the cylindrical member are alternately movably mounted on the bobbin holder device main body, the gripping means is axially compressed, and the gripping means is expanded in the radial direction to grip the bobbin. A compression means for gripping a gripping member is provided, and a pressing means for releasing the gripping member while resisting the compression means is provided. Japanese Utility Model Laid-Open No. 61-108260, Japanese Utility Model Laid-Open No. 60-43667, There is one disclosed in each publication of Sho 63-45748.

[Problems to be solved by the device]

In such a conventional technique (Shokaisho 61-108260), a cylinder is mounted as a pressing device near the tip of the holder body, and the diameter of the cylinder is restricted by the diameter of the holder body.
Therefore, in the small-diameter bobbin holder device, the capacity of the pressing device becomes small, the compression means for gripping and operating the gripping member cannot be increased, and the gripping force of the bobbin cannot be increased.

In the second conventional technique (Shokai Sho 60-43667), a pressing device is arranged at the position of the winder frame part at the base of the holder body. Therefore, although the capacity of the pressing device can be large, when the hobbin is loosened, the force of the pressing device acts as a large thrust force on the bearing via the holder main body,
There were problems that the bearing was damaged, abnormal noise was generated, and the life was shortened.

The third conventional technique (Japanese Patent Laid-Open No. 63-45748) has a problem that it is difficult to machine holes for supplying compressed air to a plurality of cylinders arranged in the holder body, and the machining cost is high. Particularly, in recent years, since the rotation speed of the bobbin holder device has been increased and the diameter of the bobbin holder device has been reduced in recent years, the problem of insufficient output of the pressing device or the life of the bearing has become remarkable.

In order to solve the above problems, the present invention provides a bobbin holder device having a large gripping force by the bobbin handle means by providing a large output pressing means by a plurality of cylinders arranged in series in the bobbin holder device body. The purpose of this is to enable a small-diameter bobbin holder device to support a high-speed winding machine.

[Means for Solving the Problems]

According to the present invention, for the purpose described above, a bobbin holder device main body is provided with a plurality of bobbin holding members, and a cylindrical member that engages with the holding members is mounted, and the holding members are expanded to hold the bobbin. In the bobbin holder device described above, a compression means for gripping the gripping member is provided, and a plurality of pistons are provided in series in the cylinder mechanism for releasing the gripping member that acts against the compression means. To do.

[Action]

In the present invention, the bobbin holder main body is provided with a cylinder mechanism having a plurality of pistons in series to increase the gripping means release actuating force which works against the compression means. Therefore, since the compressing means having a large compressing force can be attached to the gripping means, the bobbin gripping force can be made strong with the small-diameter bobbin holder device, and an unreasonable thrust force is not generated in the bearing.

〔Example〕

An embodiment of the device of the present invention will be described below with reference to the drawings. One embodiment of the hobbin holder device of the present invention will be described with reference to FIG. Fig. 1 shows the bobbin holder device of the yarn winding device. The packages 2A, 2B, 2C, 2D are bobbins 3A, 3B, 3C,
Each is rolled on 3D.

The bobbin holder device 1 is rotated by a friction roller (not shown) having a drive mechanism coming into contact with the bobbin or the package, and the yarn is wound on the bobbin while being traversed by the traverse mechanism (not shown).

The shaft 15 that constitutes the main body of the bobbin holder device is a bearing 16
It is rotatably supported by the frame 17 of the winder by A and 16B. Each of 4A, 5A to 4H, 5H is composed of a pair of members which are tapered and are opposed to each other by gripping members for tightly attaching the bobbin to the bobbin holder, and the gripping members 4A, 5A to 4H, 5H.
Engages with the outer cylinders 6A to 6I that form the cylindrical member.

The outer cylinders 6A to 6I of the bobbin holder device have a role of tightly attaching and releasing the bobbin by simultaneously moving the gripping members in the axial direction of the bobbin holder device. The outer cylinder 6A is engaged with the piston 10 and the piston 14 via the support shaft 7. The supporter 8 is fixed to the inner wall of the tip of the shaft 15,
A compression spring 9, which is a compression means of the gripping member, is held between it and the piston 10. The cylinder 12 acts as a cylinder of the piston 14, has an air passage 12a in its outer wall portion, and has a shaft 15
The compressed air from the outside (compressed air supply device (not shown)) that enters through the holes 15a and 15b in the center of the cylinder is guided to the pressing chamber 16 of the piston 14, and the piston 10 exhausts the cylinder chamber 17 to the piston 10. It has an air passage 10a that guides to the cylinder chamber 19 of the piston 10. The support 8 and the outer cylinder 6A have air passages 8a and 6Aa for guiding the exhaust gas of the cylinder chamber 19 to the outside of the bobbin holder device, respectively.

The support shaft 7 is fixed to the outer cylinder 6A by a nut 7a, and the piston 14 is fixed to the support shaft 7 by a nut 7b.
A cylinder that defines the piston 14 and the cylinder chamber 16 described above.
The shaft 12, which defines 12 and the piston 10 and the pressing chamber 18, is arranged in series and constitutes a cylinder mechanism.

Next, the operation will be described. In the bobbin holder device of the winding machine, when the package is full, the pushing plate 18a of the package pusher 18 releases the bobbins 3A, 3B, 3C, 3D from the bobbin holder device 1 and then the packages 2A, 2B, 2C, 2
D is extruded. The extruded package is obtained or moved to the next step by another device. Next, a new bobbin is obtained or pushed into the bobbin holder device 1 by the device, and further the gripping means 4A, 5A to 4H, 5H of the bobbin holder device 1 are obtained.
To be tighter. In this way, the bobbin holder device 1 repeats the release and tight attachment of the bobbin every time the package is full.

Next, an operation in which the bobbin holder device tightly attaches the bobbin will be described. In the bobbin holder device 1 of the present invention, the outer cylinder 6A is pulled toward the frame side of the winder at a position relative to the shaft 15 by the compression force of the compression coil spring 9. As a result, the outer cylinder
The projection 6Ab of 6A pushes the taper member 4A that is a gripping member, and the taper members 4A and 5A that face each other ride on each other, and the taper member 4A on the side that comes into contact with the inner surface of the bobbin projects and comes into contact with the inner surface of the bobbin with a pressing force. . Similarly, outer cylinders 6B, 6C, 6D, 6E,
All the bobbins are tightly attached by acting on the remaining gripping members 4B, 5B to 4H, 5H via 6F, 6G, 6H. The gripping force of the bobbin at this time is substantially proportional to the magnitude of the compression force of the compression spring 9 if the shape and material of the members of the gripping means are the same. Next, the case of releasing the bobbin will be described. Hole 15 in the center of shaft 15
External compressed air supply device (not shown) through a and 15b
More compressed air is supplied to the chamber 16. Chamber
The compressed air 16 pushes the piston 14 toward the tip side of the bobbin holder device in the axial direction of the bobbin holder device. Further, the compressed air enters the pressure chamber 18 through the air passage 12a, and the piston 1
Push 0 to the tip side of the bobbin holder device. Piston 14
Exhaust of the cylinder chamber 17 due to the pushing out of the cylinder to the tip side of the bobbin holder device enters the cylinder chamber 19 through the passage 10a. It is discharged to the outside air through the air passage 6Aa.

Next, a bobbin holder device of FIG. 2 which is another embodiment of the present invention will be described. FIG. 3 is an enlarged view of the tip portion of the embodiment shown in FIG. In this embodiment, the gripping means 4A is the first
The outer cylinder 6A corresponds to the piston 10 in FIG. 1 in addition to the piston 14 in that the elastic force of an elastic material (for example, rubber) is used instead of the taper member as in the illustrated embodiment. 1 is different from the embodiment shown in FIG. 1 and other points are almost the same as the embodiment shown in FIG.

Further, FIG. 4 shows another embodiment of the present invention. The bobbin holder device of the present embodiment has a cylinder mechanism and a second structure as shown in FIG.
It is a combination of gripping members in the form of the figure. A detailed description of this is also omitted.

Although three embodiments of the present invention have been shown with reference to FIGS. 1 to 4, the embodiments of the present invention are not limited to this, and various forms and numbers of cylinder mechanisms and other structures can be used. The combination is considered.

[Effect of device]

In the bobbin holter device of the present invention, a plurality of cylinder mechanisms for releasing the compressing force of the spring of the compressing means, which determines the magnitude of the gripping force of the bobbin holding device, is released to the cylinder mechanism for releasing the gripping device of the bobbin holder device. By providing the pistons in series, it is possible to obtain a gripping force that is approximately twice the gripping force of a conventional bobbin holder device having the same outer diameter size (when two cylinder mechanisms are in series), and thereby a small diameter bobbin holder device. Now you can handle high-speed winding,
In addition, it is possible to prevent unreasonable thrust force on the bearing.

[Brief description of drawings]

FIG. 1 is a first embodiment of the device of the present invention, FIG. 2 is a second embodiment of the device of the present invention, and FIG. 3 is an enlarged view of the tip of FIG.
The figures show the third embodiment of the device of the present invention. 1 …… Bobbin holder device 3A to 3D …… Bobbins 4A to 4H, 5A to 5H …… Gripping member 6A to 6I …… Outer cylinder (cylindrical member) 9 …… Compression spring 10,14 …… Piston 15 …… Axis (bobbin holder) (Device body)

Claims (1)

[Scope of utility model registration request] 1. A bobbin holder device main body having a plurality of bobbin gripping members, a cylindrical member engaging with the gripping members is mounted, and the gripping members are expanded to grip the bobbin. In the bobbin holder device, compression means for gripping the gripping member is provided, and a plurality of pistons are provided in series in a cylinder mechanism for actuating against the compression means to release the gripping member. Bobbin holder device.