JPS6357125B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tension applying roller for winding multiple threads in a slitter line, and is capable of stably applying a low tension and having excellent control responsiveness until a predetermined tension is reached. This invention relates to a tension applying roller for winding. In general, winding on a slitter line involves unwinding a wide coil of thin metal plate, slitting it into multiple strips with the required dimensions, and then winding the coil while applying a constant tension using one or more tensioning rollers. It is wound up by a take-up machine. However, with the structure of conventional tensioning rollers,
There are variations in the braking force between the plurality of divided rollers attached to the tension applying roller, resulting in inconsistencies in the winding tension between each slit strip, making it difficult to apply a low tension, and also making it difficult to maintain the set tension. There were problems such as poor responsiveness until reaching the destination. As shown in FIG. 1, the structure of a conventional tensioning roller is such that a roller shaft 2 whose shaft portions at both ends are supported by a bearing stand 1 has a key 3 protruding in the axial direction of the shaft body, and a key groove is inserted into the roller shaft 2. A plurality of intermediate rings 4 are mounted so as to be slidable in the axial direction, and a braking disc with brake shoes 5 mounted on both outer peripheral ends of the roller shaft body between each intermediate ring 4 is provided. 6 is stuck,
Furthermore, a roller ring 9 whose outer circumferential surface is coated with a rubber lining 8 is rotatably mounted on the outer circumferential surface of the intermediate ring 4 via a bearing 7. A support plate 10 is fixed to one end of a roller shaft 2 which is formed and driven by a motor, and a press ring member 11 is attached to the other end so as to be slidable in the axial direction.
abut against the end surface of the outer roller ring 9 through the
Air cylinder 12 attached to the second end of the shaft on the other end side
The piston rod 13 is inserted into the shaft space, and the contact rod 14, which is projected from the press ring member 11 into the body shaft space, is pressed, and the brake shoe 5 is brought into contact with the end surface between each roller ring 9. It consists of a structure in which the rotation of each roller ring 9 is controlled by braking force. The conventional tensioning roller configured as described above uses a key and a keyway to stop the rotation of the intermediate ring 4 when it is rotated by a motor, so there is a lot of friction between the two.
The intermediate ring 4 requires a large force to slide in the axial direction and lacks smoothness, and the brake shoe 5 has a high coefficient of friction and poor surface flatness, so a large braking force is easily generated, but it is not necessary. It is unsuitable for small braking forces such as
There are variations in the braking force between the plurality of divided rollers attached to the tension applying roller, resulting in inconsistencies in the winding tension between each slit strip, making it difficult to apply a low tension, and also making it difficult to maintain the set tension. There were problems such as poor responsiveness until reaching the destination. In addition, recently, slitter lines for high-grade special metal alloys used in electronic and electrical parts, etc., are winding while controlling and eliminating slitter distortion, making it possible to apply tension stably and uniformly to the winding process. The tension is required to be as low as possible without causing any problems, and furthermore, in the tension annealing process of continuous multi-strip processing, it is necessary to equalize the tension and speed up the control response. In view of the current situation, the present invention aims to improve the tension applying roller during multi-thread winding in a slitter line, and is capable of applying low tension stably and uniformly.
The object of the present invention is to provide a tension applying roller for multi-filament winding that has excellent control responsiveness until reaching a predetermined tension. That is, the present invention has a small support plate fixed to one end of the shaft and a pressing device attached to the other end of the shaft and capable of pressing the support plate with fluid pressure. Consisting of a roller and a shaft protrusion, a follower roller is fixed on the protrusion side and can roll in the groove on the small roller side, and multiple intermediate rings are installed so that they can slide only in the axial direction, and each intermediate ring A roller ring whose outer periphery is covered with a rubber lining is rotatably mounted on the outer circumferential surface of the roller ring via a bearing, and a thrust support disk is fixed to the shaft body between each intermediate ring, and a thrust support disk is provided on both sides of the outer circumference of the disk. Adjacent roller rings are supported via bearings, and a plurality of elastic bodies are interposed between adjacent intermediate rings passing through a thrust support disk to synchronize and adjust the rotational torque of each roller ring. This is a tension applying roller for multi-strip winding. This invention uses follower rollers to stop the rotation of the intermediate ring and to slide it in the axial direction, and the contact between the groove and the small roller is a line contact with little friction, and the force required to swing the intermediate ring is small, resulting in movement. In addition, since a thrust bearing is used between the roller rings, the friction coefficient is small, making it easy to obtain machining flatness, and the friction coefficient is constant over the ring circumference.
Although the generated braking force is small, it is possible to stably generate a braking force proportional to the pressing force.Furthermore, since an elastic body is interposed between the intermediate rings, immediate response to the pressing force of the pressing device is obtained, and the braking force is proportional to the pressing force. It has the advantages of preventing rotational unevenness in the tension and making it possible to make adjustments to minimize the difference in tension between each strip.It is also possible to apply low tension stably and uniformly, and to control the tension until it reaches a predetermined tension. A tension applying roller for multi-filament winding with excellent responsiveness can be obtained. In this invention, the bearings between the intermediate ring and the roller ring include ordinary ball bearings,
Metal bearings such as oil-impregnated metal may be used. In addition to thrust roller bearings, rolling bearings and oil-impregnated metal bearings can also be used as thrust bearings, and various types of elastic bodies such as springs and rubber can be used. Examples will be described in detail below based on the drawings. FIG. 2 is a partial longitudinal cross-sectional view of the tension applying roller according to the present invention, FIG. 3 is an explanatory view showing a follower roller, and FIG. 4 is an explanatory view of a divided roller formed by an intermediate ring and a roller ring. be. The roller shaft 2 is supported at both shaft ends by a bearing stand 1 having ball bearings, and a support plate 10 is fixed to the left end of the large-diameter body with a nut, and is capable of absorbing the pressing force of the pressing device described below. Support. A plurality of intermediate rings 4, seven in this case, are arranged in the direction of the roller shaft 2, and each of the intermediate rings 4 is Small rollers 22 are inserted into follower roller grooves 23 cut out in the axial direction at a plurality of locations on the inner circumferential surface of the intermediate ring 4, fixed in the rotational direction of the roller shaft 2, and slidably mounted in the axial direction. Although the grooves are provided on the intermediate ring 4 side here, the grooves may be provided on the roller shaft 2 side. There is a thrust support disk 25 between the intermediate rings 4, and thrust bearings 2 are provided on both sides of the outer circumference of the disk 24.
5 is fixed. Further, a bearing 7 is provided on the outer peripheral surface of each intermediate ring 4, and a roller ring 9 having a rubber lining 8 coated on the outer peripheral surface is rotatably mounted. That is, each roller ring 9 is supported by the bearing 7 and the thrust bearing 25 in the rotational direction and the axial direction. In addition, a press ring member 11 is attached to the right small diameter portion of the roller shaft 2 so as to be slidable in the axial direction, and is brought into contact with the end surface of the outer roller ring 9 via a thrust bearing 25. It is inserted into the shaft cavity 15 of the piston rod 13 of the cylinder 12,
A pressing device is installed to apply a pressing force to the roller ring 9 by pressing a contact rod 14 which is projected from the pressing ring member 11 into the cylinder shaft space. In addition, the pressing device has a cylinder part and a piston part attached to the right body end of the roller shaft 2, and air is introduced into the pressure chamber through the shaft space from a plug attached to the roller shaft end, and the piston part moves into the shaft. The pressing device is configured to protrude in the direction, and the piston side is connected to the support plate 10.
It is also possible to have a structure in which the cylinder part is fixed with a nut toward the piston part, the tip of the piston part forms a pressing ring part extending in the diametrical direction, and the thrust bearing 25 is provided on the outer peripheral end surface. Furthermore, the roller shaft 2 of each thrust support disk 24
Elastic bodies 26 are interposed between adjacent intermediate rings 4 by penetrating them at a plurality of locations in the circumferential direction near the surface. In the above configuration, when the roller shaft 2 is rotated by driving the motor, each rotatable roller ring 9
The rotational force is transmitted from the intermediate ring 4 via the thrust bearing 25, and the air pressure introduced into the air cylinder 12 of the pressing device causes the support plate 1 to be
By changing the protruding force of the press ring 11 in the 0 direction, the axial pressing force applied to each thrust bearing 25 is variably adjusted, the braking force generated in the thrust bearing 25 is also adjusted, the rotational force is controlled, and the multi-strip The tension during winding can be controlled. Table 1 shows a comparison of the performance of the conventional tension applying roller shown in FIG. 1 and the tension applying roller according to the present invention having the above configuration. It can be seen that the tension applying roller for multi-filament winding has excellent control responsiveness until reaching a predetermined tension. 【table】

[Brief explanation of drawings]

FIG. 1 is a partially longitudinal sectional view of a conventional tension applying roller. FIG. 2 is a partial longitudinal cross-sectional view of the tension applying roller according to the present invention, FIG. 3 is an explanatory view showing a follower roller, and FIG. 4 is an explanatory view of a divided roller formed by an intermediate ring and a roller ring. be. 1...Bearing stand, 2...Roller shaft, 3...
Key, 4... Intermediate ring, 5... Brake shoe, 6... Braking disc, 7... Bearing, 8... Rubber lining, 9... Roller ring, 10... Support plate, 11... Pressing Ring, 12... Air cylinder, 13... Piston rod, 14... Contact rod,
15...Shaft empty, 20...Following roller, 21...Shaft protrusion, 22...Small roller, 23...Following roller groove, 24...Thrust support disk, 25...Thrust bearing, 26...Elastic body .

Claims (1)

[Claims] 1. A small roller and a shaft protrusion are attached to the shaft body of a roller shaft, which has a support plate fixed to one end of the shaft and a pressing device attached to the other end of the shaft and capable of pressing the support plate with fluid pressure. A follower roller is fixed on the protrusion side and can roll in the groove on the small roller side, and multiple intermediate rings are installed so that they can slide only in the axial direction, and a bearing is attached to the outer peripheral surface of each intermediate ring. A roller ring whose outer periphery is coated with rubber lining is rotatably installed through the intermediate ring, and a thrust support disk is fixed to the shaft body between each intermediate ring, and the roller ring is attached adjacently via thrust bearings provided on both sides of the outer periphery of the disk. A multi-filament winding system which synchronously adjusts the rotational torque of each roller ring by penetrating a thrust support disk and interposing a plurality of elastic bodies between adjacent intermediate rings. Tension roller for use.