JPS60132878A - Roller giving tensile force for reeling many threads - Google Patents

Abstract

PURPOSE:To improve control responsiveness until reaching a predetermined tensile force by fitting the plural number of intermediate rings on a roller shaft, provided with a contact ring projecting in the middle part, through follow-up rollers formed by small rollers and axial projections, and further fitting roller rings on the outer periphery of the abovementioned intermediate rings. CONSTITUTION:A roller shaft 20, provided with a contact ring 21 projecting from the middle of a drum part of big diameter, is rotatably supported at its both end parts by means of bearing stands 1, while a pressing device 30 composed of a cylinder part 31 and a piston part 32 is provided at each end of the drum part. Further, the plural number of intermediate rings 40 are fitted on left and right of the drum part of the roller shaft 20 with its contact ring 21 interposed between them, while each ring 40 is guided through sliding through a follow-up roller 50 with a smaller roller 52 engaged with a follow-up roller groove 22 of the drum part of the roller shaft 20. Furthermore, roller rings 45, fitted with rubber linings 44, are fitted on the outer periphery of the intermediate rings 40 through bearings 43, while a thrust support plate part 41, united in one body with the intermediate ring 40, is interposed between two adjacent roller rings 45 through a thrust bearing 42.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention □ relates to tension application rows during multi-filament winding in a slitter line, and is capable of stably applying low tension and providing excellent control responsiveness until a predetermined tension is reached. The present invention relates to a winding tension applying roller.

In general, winding on a slitter line involves unwinding a wide coil of metal thin plate, etc., and slitting it into multiple strips with the required dimensions. It is rolled up from the machine.

However, in the structure of the conventional tension applying roller, there are variations in the braking force among the plurality of divided rollers attached to the tension applying roller, resulting in inconsistency in the winding plate tension between each slit strip, making it difficult to apply low tension. There were also problems such as poor responsiveness until the set tension was stably reached.

As shown in Fig. 1, the structure of a conventional tension-applying chive is a roller shaft (2) with both end shafts mounted on a bearing stand (1).
) has a key L (3) protruding in the axial direction of the shaft body, and a plurality of intermediate rings (4) are attached to the keyway so as to be slidable in the axial direction. A braking disc (6) with brake shoes (5) mounted on both sides of the outer peripheral end is fixed to the roller shaft body between the intermediate rings (4), and a brake disc (6) is attached to the outer peripheral surface of the intermediate ring (4). is a bearing (roller ring (9) whose outer circumferential surface is coated with a rubber lining (8)
is rotatably mounted, and this intermediate ring (4) and roller ring (9) form a divided roller, and a support plate (10) is fixed to the -end side of the roller shaft (2) driven by the motor. A suppression ring member (11) is attached to the other end 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 the brake shoe (5), and the suppression ring member (11) is attached to the end of the shaft (2) on the other end side. Piston rond (13) of air cylinder (12) with mirror cover
) is inserted into the shaft space and the contact rod (14) which is projected from the press ring member (11) into the barrel shaft is pressed, and the brake shoes (5) are placed on the end surface between each roller ring (9). The roller rings (9) are brought into contact with each other and the rotation of each roller ring (9) is controlled by braking force.

The conventional tension applying roller with the above structure uses a key and a keyway to stop the rotation of the intermediate ring (4) when rotated by a motor drive, so there is a lot of friction between the two, and the intermediate ring (4)
The brake shoes (5) require a large force to slide in the axial direction and lack smoothness, and the brake shoes (5) have 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, and differences in braking force tend to occur between individual brake shoes.As mentioned above, there are variations in braking force between multiple divided rollers attached to the tensioning roller, and each slit There were problems such as uneven winding tension between the strips, making it difficult to apply a low tension, and poor responsiveness until the set tension was stably reached.

In addition, recently, in slitter lines for high-grade special metal alloys used in electronic and electrical parts, winding is performed while controlling and removing slitter distortion, and the applied tension is stable and uniform, so that it does not interfere with winding. In addition, in the tension annealing process of continuous multi-strip processing,
It is necessary to make the tension uniform and to speed up the control response.

In view of the current situation, the present invention aims to improve the tension applying roller during multi-filament winding applied to the slitter line.It is capable of applying low tension stably and uniformly, and can be controlled until a predetermined tension is reached. The purpose is a tension applying roller for multi-filament winding with excellent responsiveness.

In other words, this invention provides a pair of pressing devices that have both shaft ends pivotally supported and an abutment ring provided around the center, and that are attached to the shaft end side and can be pressed toward the abutment ring side using fluid pressure. A plurality of intermediate rings are mounted in the axial direction on the body of the suppression device of the roller shaft, which is made up of a small roller and a shaft protrusion, and is fixed on the protrusion side and is movable in the groove on the small roller side. Through the outer and inner ring bearings of each intermediate ring, which can be slid only in the axial direction,
A roller ring coated with a rubber lining is rotatably mounted on the outer circumference, and a thrust bearing is installed between both surfaces of the thrust support plate extending in the diametrical direction on one end of each intermediate ring and between the pressing device. All intermediate rings and suppression devices, except between the intermediate rings that support the adjacent roller rings through and sandwich the abutment ring! This tension applying roller for multi-filament winding is characterized in that the rotational torque of each roller ring is synchronously adjusted by interposing an elastic body between the roller rings.

4- 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, resulting in less friction and less force required for sliding the intermediate ring. , the movement is smooth, and since a thrust bearing is used between the roller rings, the friction coefficient is small, making it easy to obtain machining flatness, the friction coefficient is constant over the ring circumference, and the generated braking force is small but It is possible to stably generate a braking force proportional to the pressure, and since an elastic body is interposed between the intermediate ring and the pressing member, immediate response to the pressing force of the suppressing member can be obtained, and the brake force generated can be It has the advantage of preventing tension rotation unevenness and making it possible to make adjustments to minimize the tension difference between each strip, allowing low tension to be applied stably and uniformly, and providing control response until a predetermined tension is reached. A tension applying roller for multi-filament winding with excellent properties can be obtained.

In this invention, the bearings between the intermediate ring and the roller ring may be not only ordinary ball bearings but also metal bearings such as oil-impregnated metal, and the thrust bearings may include thrust roller bearings, rolling bearings, oil-impregnated metal bearings, etc. can also be used, 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 partially longitudinal sectional view of the tension applying roller according to the present invention;
FIG. 3 is an explanatory diagram showing a follower roller, and FIG. 4 is an explanatory diagram of a divided roller formed by an intermediate ring and a roller ring.

The roller shaft (20) has both shaft ends supported by a bearing stand (1) having ball bearings, and has an abutment ring (21) protruding from the center of the large-diameter body. Part, a plurality of partial roller grooves (22) in the axial direction on the surface
″111(20).!ljl[Hct, 2,2 da part (3
1) and a piston part (32), and a roller shaft (20
) Air is introduced into the pressure chamber (34) from the right end plug (24) through the shaft cavity (25), and the piston part (32)
The suppression device (3O) has a structure in which the piston side is directed toward the abutment ring (21), and the cylinder part (31) is fixed with a nut (23), and the tip of the piston part (32) has a diameter A suppression ring portion (33) extending in the direction is formed, and a thrust bearing (42) is provided on the outer peripheral end surface.

Multiple pieces in the direction of the roller axis (2O), here a contact ring (
Intermediate rings (4) are placed on each side, sandwiching the
o) is driven by a follower roller (5O) consisting of a small roller (52) supported by a shaft protrusion (51) fixed to the inner circumferential surface, into a follower roller groove (22) in the body of the roller shaft (2O). A small roller (52) is inserted and fixed in the rotational direction of the roller shaft (2O), and is mounted so as to be slidable in the axial direction. Here, a groove was provided on the roller shaft (2O) side, but the intermediate ring (4
A groove may be provided on the 0) side.

The end face of the intermediate ring (40) becomes a thrust support plate (41) extending in the diametrical direction, and supports the thrust bearing (
42) are fixed to both sides of the outer peripheral edge of the support plate.

In addition, a bearing (43) is provided on the outer peripheral surface of the intermediate ring (40).
A roller ring (45) having a rubber lining (44) on its outer peripheral surface is rotatably mounted.

That is, each roller ring (45) is rotatably and axially supported by a 7-bearing (43) and a thrust bearing (42).

A pair of intermediate rings (40) sandwiching the abutment ring (21)
``All inside except between!Ring (40) between and between
□ ring (40) and the piston part (32) of the pressing device,!
: Between and ', elastic bodies (46) are placed at multiple locations or around the perimeter.

This is done by setting up and intervening. .

In the above configuration, when the roller shaft (20) is rotated by a motor, each rotatable roller ring (45)
The rotational force is transmitted from the intermediate ring (40) via the thrust bearing (42), and the abutment ring ( By changing the protruding force of the suppression ring portion (33) to the thrust bearing (42), the axial pressing force applied to each thrust bearing (42) is variably adjusted, and the vibration generated in the thrust bearing (42) portion is also adjusted. The rotational force is controlled, and the tension can be controlled when winding multiple threads.

Table 1 compares the performance of the conventional tensioning roller shown in Fig. 1 and the tensioning roller of the present invention having the above configuration. It can be seen that the tension applying port □ and -arm ζ for multi-filament winding can be applied and has excellent control responsiveness until reaching a predetermined tension.

, 1

[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, 2O...Roller shaft, 21...
・Abutting ring, 22...Following roller groove, 23...Nut, 2.4...Plug, 25...Shaft empty, 3O...
- Pressing device, 31... Cylinder part, 32... Piston part, 33... Pressing ring part, 34... Pressure chamber, 4
O...Intermediate ring, 41...Thrust support plate portion, 4
2... Thrust bearing, 43... Bearing, 44... Rubber lining, 45... Roller ring, 46... Elastic body, 50... Following roller, 51... Shaft protrusion, 52
...Little roller. Applicant: Sumitomo Special Metals Co., Ltd. Applicant: Sumikura Industries Co., Ltd. 11-2nd Mi

Claims (1)

[Claims] 1. Both shaft ends are pivotally supported and an abutment ring is provided around the center,
The roller shaft has a pair of suppressing devices mounted on the shaft end side and capable of pressing toward the abutting ring side using fluid pressure.The roller shaft is composed of a small roller and a shaft protrusion on the body between the pressing devices. A number of intermediate rings are installed in the axial direction so that they can slide only in the axial direction, using a follower roller that is fixed on the protrusion side and can be moved in the groove on the small roller side. An O-R ring whose outer periphery is coated with a rubber lining is rotatably mounted, and a thrust bearing is installed between both sides of the thrust support plate part extending in the diametrical direction on one end of each intermediate ring and between the suppression device. The rotating torque of each roller ring is synchronously adjusted by interposing elastic bodies between all the intermediate rings and the pressing device except between the intermediate rings that sandwich the contact ring. Tension applying roller for multi-strip winding.