JPH04138069U - Winder bobbin holding device - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to securely tighten multiple bobbins, to lengthen the interval between filling lubricating oil, [Structure] The tightening ring 6 is connected to a rigid ring plate on both sides of the elastic ring 61. 62, the inner diameter side width dimension (W I) of the elastic ring 61 is made smaller than the outer diameter side width dimension (W O), and the inner circumferential surface of the rigid ring plate 62 and the elastic ring 61 allows lubricating oil to be The structure is such that a cavity (A) for filling is formed.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a bobbin holding device for a winding machine that holds multiple bobbins simultaneously. It is.

0002

[Conventional technology]

Generally, synthetic fiber yarns are produced in multiple pieces from one spinning machine to improve productivity. A winding machine that holds multiple bobbins in one bobbin holding device is used. and winding it up. As a bobbin holding device with such a configuration, for example, 64-4765, and the tension for holding the bobbin used in the device is The tightening ring is described, for example, in Japanese Patent Publication No. 55-8424. child These tightening rings are made of an elastic material such as synthetic rubber, and the inner circumference It is attached with the surface in contact with the outer peripheral surface of the shaft body.

0003 When a bobbin is attached to the bobbin holding device with such a configuration and the movable member is operated, The tightening ring, spacer, tightening ring, etc. are pressed in this order toward the fixed member. child When , the inner circumferential surface of the tightening ring is in contact with the outer circumferential surface of the shaft, so the frictional resistance is Due to this, each tightening ring does not move smoothly, and only the tightening ring located on the movable member side is compressed and deformed, tightening the shaft body or bobbin, and subsequent tightening If no pressing force is applied to the ring, it may not be possible to securely tighten all bobbins. There was a problem.

0004 Therefore, in order to solve this problem, both sides of the elastic ring 21 as shown in FIG. A rigid ring plate 22 is integrally fixed to the inner peripheral side of the elastic ring 21, and a sliding member 23 is integrally fixed to the inner peripheral side of the elastic ring 21. We devised a tightening ring 20 having the following configuration and filed an application as Utility Model Application No. 2-81758.

[0005]

[Problem that the idea aims to solve]

In a bobbin holding device equipped with such a tightening ring 20, the number of bobbins is small. If the number of tightening rings 20 is small, each tightening ring 20 may be tightened by the sliding member 23. The ring 20 can move on the shaft body to tighten the bobbin, but the number of bobbins is 6. If there are many tightening rings 20 to 8, the number of tightening rings 20 will also increase, so the sliding member 23 will be As a result, the frictional resistance force applied to the In addition, the amount of movement of the tightening ring 20 tends to vary, making it difficult to check all bobbins. This is a point that cannot be tightened.

[0006]

[Means to solve the problem]

In order to solve the above problem, a tightening ring is placed on both sides of the elastic ring, and a rigid ring is placed on both sides of the elastic ring. The inner diameter of the elastic ring is larger than the inner diameter of the rigid ring plate, and the elastic The outer diameter of the flexible ring is smaller than the outer diameter of the rigid ring plate, and the inner diameter of the elastic ring is The side width dimension is made smaller than the outer diameter side width dimension, and the inner circumferential surface of the rigid ring plate and elastic ring The structure is such that a cavity for filling lubricating oil is formed.

[0007]

【Example】

FIG. 1 is a front view showing one embodiment of the bobbin holding device of the winder of the present invention, and FIG. 3 to 5 are schematic enlarged cross-sectional views showing one embodiment of the tightening ring in FIG. FIG. 3 is a schematic enlarged cross-sectional view showing another embodiment of the device. In the figure, 2 is due to bearing 3. It is a shaft body rotatably attached to the machine frame 1, and has a hole 2a for pressurized air supply. At the same time, a flange 2b for positioning the bobbin and a flange 2c for positioning the tightening ring are shaped. It has been completed. 4 is a piston movably attached to the end of the shaft body 2, and a spring The flange portion 2b side of the shaft body 2 is pressed in the direction (A) by the rod 5. 6 is tight As shown in FIG. 2, rigid ring plates 62 are positioned on both sides of an elastic ring 61. It is integrally formed so that it can be placed. The elastic ring 61 has an inner width dimension (W I ) is smaller than the outer width dimension (W O ), and the rigid ring plate 62 and the elastic ring A cavity (A) for filling a lubricant is formed by the inner circumferential surface of the plug 61. The elastic Ning 61 uses synthetic rubber, has oil resistance, chemical resistance, etc., and has a small amount of creep. Preferably. In addition, the rigid ring plate 62 is made of metal, hard synthetic resin, etc. to be accomplished. Then, the elastic ring 61 and the rigid ring plate 62 are vulcanized in an overlapping state. They are bonded together chemically or bonded together with an adhesive. 7 and 8 are It is a spacer. The tightening ring 6 and spacers 7 and 8 are movably attached to the shaft body 2. There is.

[0008] The elastic ring 61 described above can also be configured to be detachable from the rigid ring plate 62. Ru.

[0009] The above-mentioned tightening ring 6 is pressed by the piston 4 so that the elastic ring 61 is diametrically The inner peripheral surface of the bobbin is pressed and tightened, and the pressurized air supply hole 2 of the shaft body 2 is When pressurized air is supplied to a, the piston 4 moves in the (b) direction and the elastic ring 61 returns to its original shape and releases the bobbin tension.

0010 The elastic ring 61 in the above-mentioned tightening ring 6 has an outer diameter side width dimension (WO) of 8 mm. At this time, tighten the bobbin when the inner diameter width (W I) is within the range of 2 mm to 6 mm. However, when the inner width dimension (W I) became 3 mm, the pressing force of the spring 5 was reduced. If the width dimension (W I) is set to 2 mm, the gap to be filled with lubricating oil will increase. becomes smaller and requires frequent filling with lubricating oil. Also, the width dimension (W I) is 5mm If the number of bobbins is large, from 6 to 8, the frictional resistance will increase and the shaft body 2 will It may not be possible to reliably tighten the bobbin located on the support side, and the width dimension ( When W I) is set to 6 mm or more, the frictional resistance force is the same when the inner diameter width dimension and outer diameter width dimension are the same. Even when the number of bobbins is small (2 to 4), the support of shaft 2 is almost the same. If the tension ring 6 on the holding side does not move smoothly and cannot securely tighten the bobbin, There is a case.

[0011] For these reasons, the relationship between the outer width dimension (W O) and the inner diameter width dimension (W I) is (W I) = Approximately 0.25 to 0.75 (W O) can be used, (W I) = 0.3 The preferred range is 5 to 0.60 (W O), and the most preferred range is (W I) = 0.5 (W O). It can be said that this is a very large range.

0012 Note that even if the outer width dimension (W O ) of the elastic ring 61 is 10 mm or 12 mm, When the compression amount of the elastic ring 61 is the same, the inner diameter width dimension (W I) and the outer diameter width dimension (W O ) and the tightening condition of the bobbin are almost the same, and the bobbin diameter is 100 mm. The above-mentioned phenomenon was the same in both cases of 125 mm and 125 mm.

[0013] The bobbin holding device of the winding machine described above has the tightening ring 6 on both sides of the elastic ring 61. The rigid ring plate 62 is fixed, and the fixed surface is formed into a concave shape that covers the elastic ring 61. The inner diameter of the elastic ring 61 is larger than the inner diameter of the rigid ring plate 62, and the elastic ring 6 1 is smaller than the outer diameter of the rigid ring plate 62, and the inner diameter of the elastic ring 61 is The diameter side width dimension (W I) is made smaller than the outer diameter side width dimension (W O), and the rigid ring plate 62 and The inner peripheral surface of the elastic ring 61 forms a cavity (A) for filling lubricating oil. Therefore, even if the rigid ring plate 62 and the elastic ring 61 are in contact with the shaft body 2, the void will not be filled. The lubricating oil such as grease is applied to the circumferential surface of the shaft body 2, reducing the frictional resistance on the sliding surface. Even when tightening as many as 8 hobbins, each tightening ring 6 The elastic ring 61 moves smoothly and the outer diameter side of the elastic ring 61 can be freely deformed. The inner circumferential surface of the bobbin can be tightened with uniform force, and even when tightening the bobbin, no lubricating oil is applied. Since a sufficient gap (A) for filling can be secured, the filling interval of lubricating oil can be reduced. It can be made longer. In addition, the fixed surfaces of the elastic ring 61 and the rigid ring plate 62 are If it is formed into a concave shape that covers the elastic ring 61, the deformation volume and pressing surface will become large, and the A large tightening force can be obtained with a small pressing force, and the inner width dimension (W I) and the outer diameter side width dimension (W O), (W I) = 0.25 to 0.75 (W O) It can be carried out reliably by forming it so that it becomes .

[0014] Instead of the above-mentioned tightening ring 6, an elastic ring 6 as shown in FIGS. 3 and 4 may be used. 1 is approximately bowl-shaped or a plurality of elastic rings as shown in FIG. 61 are arranged radially at predetermined intervals and are integrally fixed by a rigid ring plate 62. You can also use what you already have.

[0015]

[Effect of the idea] The bobbin holding device of the winder of this invention has a tightening ring on both sides of the elastic ring. The configuration includes a ring plate, and the inner diameter of the elastic ring is larger than the inner diameter of the rigid ring. , the outer diameter of the elastic ring is made smaller than the outer diameter of the rigid ring plate, and the outer diameter of the elastic ring is The inner diameter side width dimension is smaller than the outer diameter side width dimension, and the inner circumferential surface of the rigid ring plate and elastic ring is Since a void is formed for filling the lubricant, the rigid ring plate and the elastic ring Even if the shaft is in contact with the shaft, the lubricating oil such as grease filled in the gap may cause damage to the circumferential surface of the shaft. The frictional resistance on the sliding surface becomes extremely small, and the number of Even when tightening the hobbin, each tightening ring moves smoothly, and the elastic ring Since the outer diameter side can be freely deformed, the inner circumferential surface of the bobbin can be tightened with uniform force. Ensure that there is sufficient space (A) for filling the lubricating oil even when tightening the bobbin. This allows the lubricating oil filling interval to be extended. We also have elastic rings and When the contact surface of the rigid ring plate is formed into a concave shape that covers the elastic ring, the deformed volume and pressure The surface is large, and a large tightening force can be obtained with a small pressing force. The relationship between the inner width dimension (W I) and the outer diameter width dimension (W O) is expressed as (W I) = 0.25 ~ It can be carried out reliably by forming it so that it becomes 0.75 (W O ).

[Brief explanation of drawings]

FIG. 1 is a schematic front view showing one embodiment of a bobbin holding device for a winder according to the present invention.

FIG. 2 is a schematic enlarged sectional view showing one embodiment of the tightening ring in FIG. 1;

3 to 5 are schematic enlarged sectional views showing other embodiments of the tightening ring of the present invention.

FIG. 6 is a schematic enlarged sectional view showing one embodiment of a conventional tightening ring.

[Explanation of symbols]

2 shaft body 4 Piston 6 Tightening ring 7, 8 Spacer 61 Elastic ring 62 Rigid ring plate

Claims (3)

[Scope of utility model registration request] Claim 1: A fixing member integrally formed with the shaft;
It is composed of a movable member attached to the shaft body, and a plurality of tightening rings and spacers arranged between the fixed member and the movable member, and the movable member is pressed against the fixed member by a pressing means such as a spring or pressurized air. In a device that simultaneously holds a plurality of bobbins by pushing the tension ring outward in the diametrical direction, the tension ring has a structure in which rigid ring plates are arranged on both sides of an elastic ring, and the inner diameter of the elastic ring is The inner diameter of the elastic ring is larger than the inner diameter of the rigid ring plate, and the outer diameter of the elastic ring is smaller than the outer diameter of the rigid ring plate, and the inner width of the elastic ring is smaller than the outer width. A bobbin holding device for a winding machine, characterized in that a gap for filling a lubricant is formed by a peripheral surface. [Claim 2] The contact surface between the elastic ring and the rigid ring plate is
2. The bobbin holding device for a winding machine according to claim 1, wherein the bobbin holding device for a winding machine is formed into a concave shape that covers the elastic ring. [Claim 3] The relationship between the inner diameter side width dimension (W I) and the outer diameter side width dimension (WO) of the elastic ring is expressed as (W I) = 0.25 to
3. A bobbin holding device for a winding machine according to claim 1, wherein the bobbin holding device is formed to have a diameter of 0.75 (W O ).