KR200224907Y1 - Apparatus of fixing in a rubber spacer - Google Patents

Abstract

The present invention relates to a rubber spacer fixing device, and more particularly, is coated with a rubber material along the outer periphery, and has an inclination of 80 ° from the outer peripheral side to the center so that one side of the hollow inner peripheral face each other A rubber spacer having a '-' shaped groove cut and a plurality of bolt insertion holes perforated on the surface of the inner circumference; A ring diagram in which a hollow fixed shaft having a guide hole drilled from the outer circumference to the inner circumference thereof to accommodate the rubber spacing and the ring-fastening bolt inserted into the bolt insertion hole are projected and fixed; The upper part is inserted into the guide hole inside the fixed shaft of the ring diagram, and the upper part protrudes, and the opposite one side which is engaged with the protruding rubber spacer is 30 °, the other side is 80 °, and the lower part is circumferentially fixed. A rod protrudes and springs are coalesced, and a pair of keys having a protruding pin secured to the lower side of the opposite one side direction; A wrench hole is drilled at the center and a guide surface for supporting the protruding pin of the key is diagonally disposed from the circumference to the center. A rotary plate accommodating the support guide grooves cut at an inclined angle of the line; It includes a cover provided on the side end of the fixed shaft to prevent the separation of the key plate in the rotating plate and the fixed shaft.

The present invention can be easily disassembled and replaced by the rubber spacer from the fixed shaft, and the assembly state is constant regardless of skill, and due to the double materialization of the rubber spacer, the roundness and rigidity is maintained even after long-term use. Ensures extended and always uniform side trimming and ensures fast and stable exchange Provide the effect.

Description

Rubber Spacer Fixture {APPARATUS OF FIXING IN A RUBBER SPACER}

The present invention relates to a rubber spacer fixing device, and more specifically, side trimming for cutting unnecessary strips or fins according to the order width of the customer to the strip (STRIP) cut to the required width from the sheet for press processing (SIDE TRIMMING) In the equipment, the rubber spacers are fixed to the ring and the fixed shaft of the ring, and the ring is rotated to trim both edges of the strip.The strip is engaged up and down, and the strip is being transported. It relates to a rubber spacer fixing device to prevent the vibration of the precision trimming.

In general, the side trimmer is rotated by engaging the upper and lower parts of the side trimmer located on the left and right side as shown in Fig. 1 is fixed to the fixed shaft (3) by the fastening bolt (10) On one side, the rubber spacer 2 is inserted into the fixed shaft 3 to be in close contact with the annulus 1 by the fastening bolt 4 and fixed, and then side trimming to a predetermined width.

The rubber spacers 2 should be used interchangeably when wear is severe, and in the prior art, the material is made of rubber only. Therefore, when the high speed rotation is performed, the rubber spacers 2 have a roundness and a force indicating a difference between a circular shape and a geometrically accurate circle. Resistance to displacement Maintaining phosphorus stiffness becomes difficult.

In addition, due to the expansion and contraction characteristics of the rubber, the diameter of the rubber spacer 2 may be changed depending on the tightening strength of the bolt. ), The fastening bolt (4) is loosened during long-term operation, the gap between the upper and lower rubber spacing (2) also changes, causing the problem of losing the function of supporting the strip.

The present invention has been devised to solve the problems in view of the above-described problems of the prior art. The outer and inner parts of the rubber spacer are dualized with rubber and steel, and a separate fixing device using a key To secure the rubber spacer by laying the inside of the fixed shaft (3) side end, to maintain the roundness and rigidity of the rubber spacer, make the rubber spacer exchange easily and quickly, does not affect the gap of the ring, rubber It is an object of the present invention to provide a rubber spacer for fixing the spacer between the spacers.

The above-described object of the present invention is coated with a rubber material along the outer circumference, and the 'c'-shaped groove having an inclination of 80 ° from the outer circumference of the inner circumference to the center is cut so that one side of the hollow inner circumference faces each other. And the rubber spacer with a plurality of bolt insertion holes perforated on the surface of the inner circumference; A ring diagram in which a hollow fixed shaft having a guide hole drilled from the outer circumference to the inner circumference thereof to accommodate the rubber spacing and the ring-fastening bolt inserted into the bolt insertion hole are projected and fixed; Shovel into guide hole inside fixed shaft The upper side protrudes, and the opposite one side which is engaged with the protruding upper rubber spacing is inclined at 30 ° and the other side is 80 ° and at the bottom of the axial direction, a round rod is protruded and springs are coalesced. A pair of keys having protruding pins fixed to the lower side of the lateral direction; and a support guide having a wrench hole drilled at the center thereof and a guide surface for supporting the protruding pins of the keys cut at an oblique line from the circumference to the center thereof. A rotary plate for receiving the groove; It is achieved by including a cover provided on the side end of the fixed shaft in order to prevent the separation of the rotating plate and the key device in the fixed shaft.

1 is an exemplary view of a side trimmer using a rubber spacer;

Figure 2 is a perspective view showing how the rubber spacer according to the prior art is assembled,

3 is a perspective view illustrating a method of disassembling a rubber spacer according to the prior art;

4 is an exploded view and an exploded perspective view (A) and assembly (B) of the rubber spacer according to the present invention,

Figure 5 is a cross-sectional view of the rubber spacer fixture according to the present invention.

* Description of the symbols for the main parts of the drawings *

1: KNIFE 2: RUBBER SPACER

2a: outer circumference 2b: inner circumference

3: SHAFT shaft 4: Rubber spacer bolt

5: wrench 6a, 6b: key

7: tumbler 8: spring

9: cover 10: circular fastening bolt

11a, 11b: tightening groove 12: wrench hole

13a, 13b: support guide groove 14a, 14b: pin

15a, 15b: guide ball 16a, 16b: fixed rod

17a: upper fastening surface 17b: upper inclined surface

18: bolt insertion hole

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

Figure 4 is an exploded perspective view (A) and assembly view (B) of the rubber spacer fixture according to the present invention,

5 is a cross-sectional view of the rubber spacer fixture according to the present invention.

According to Figs. 4 to 5, the rubber spacers are largely divided into a key device for fixing the rubber spacers 2 of the dual material and the rubber spacers 2 rotating together with the shaft to the rotary shaft. The rubber spacer 2 has a cylindrical shape with a '-' groove concave in one of its centers, and the outer circumferential portion 2a is coated with a rubber material to give elasticity when directly contacting the strip, and the inner circumferential portion 2b. ) Is made of a steel material to secure the roundness and rigidity of the rubber spacer and a bolt to which the head of the ring-shaped fastening bolt 10 can be inserted so as to be in close contact with the ring-shaped (1) without a gap. Insert hole (18) perforated The inner diameter is spaced so that it can be freely attached to the outer diameter of the ring shaft (1) fixed shaft (3).

Incidentally, an inclination of approximately 80 ° from the outer circumference to the center in the outer surface to mate with the keys 6a and 6b of the fixing device to face the inner surface of the central hole of the rubber spacer inner circumference 2b opposite to each other. The 'c' shaped fastening grooves 11a and 11b having the cutting are cut so that the fixed shaft 3 and the rubber spacer 2 of the ring diagram 1 are integrated.

The key (6a, 6b) is a rectangular guide ball (15a, 15b) through the outer periphery and the inner periphery of the hollow fixing shaft (3) at the fastening point to which the rubber spacer (2) is fixed perforated In each of the guide holes 15a, 15b, a key 6a, 6b having a rectangular cross section is inserted.

The keys 6a and 6b protrude from the inner circumference of the fixed shaft to the outer circumference, and the upper fastening surface 17a of one side is inclined at approximately 80 ° in a triangular shape, and the fastening grooves 11a of the rubber spacer 2 are formed. 11b) is fastened in a wedge shape, and the other upper inclined surface 17b is inclined at approximately 30 ° to reduce frictional resistance with the rubber spacers 2 and the fastening grooves 11a and 11b, thereby providing a rubber spacer 2 When worn, it is smoothly inserted into the fixed shaft (3).

Circular fixing rods protrude from the lower portions of the keys 6a and 6b in the axial direction, springs are interposed therebetween, and pins 14a and 14b below the keys 6a and 6b on the surface opposite to the rubber spacers 2. ) Is protruded and inclined in an oblique line from the circumference to the center, and the arc-shaped support guide grooves 13a and 13b are inserted into the formed rotating plate, and a wrench hole is drilled in the center of the rotating plate.

In order to prevent the key 6a and 6b from detaching, the cover 9 is attached to the side of the fixed shaft 3 so that the fixed shaft 3 and the key 6a and 6b are integrated.

The present invention consisting of such a configuration works as follows.

To disassemble the rubber spacers 2, insert the wrench 5 into the wrench hole 12 of the rotary plate 7 and turn it counterclockwise until it stops (about 90 °), and the support guide groove of the rotary plate 7 13a and 13b are rotated and the pins 14a and 14b inserted into the support guide grooves 13a and 13b are inclined along the inclined surface of the arc-shaped groove having an oblique inclination from the circumference of the rotating plate to the center. It slides from the side to the lower side and gradually moves toward the center of the turntable.

The keys 6a, 6b, which are the main bodies of the pins 14a, 14b, then go straight from the fixed shaft guide holes 15a, 15b to the center of the fixed shaft 3, and the spring 8 between the keys 6a, 6b. The upper fastening surface 17a of the key is released below the fastening grooves 11a and 11b of the rubber spacer 2 so that the rubber spacer 2 is separated from the fixed shaft 3. .

When the operator removes the wrench 5, the keys 6a and 6b are returned to their original tightening positions by the restoring force of the spring 8 pressed between the keys 6a and 6b, while the pins 14a and 14b of the keys are ) Moves toward the higher inclination of the support guide grooves 13a and 13b to rotate and rotate the rotating plate 7 (about 90 °) to return to its original position.

In order to assemble the new rubber spacer 2, the keys 6a, 6b and the opposite fastening grooves 11a, 11b in the rubber spacer 2 are arranged on the same side at the fixed shaft 3 side. After the coincidence at, and move to the ring degree (1) side, the inner portion of the rubber spacer (2) (2b) Is in contact with the bottom surface of the upper inclined surface 17b of the keys 6a and 6b and gradually comes into contact with the bottom surface, and the keys 6a and 6b are pushed down from the guide holes 15a and 15b toward the center of the fixed shaft 3. At the same time, the spring 8 between the keys 6a and 6b is compressed.

When the rubber spacer 2 is pushed continuously, the inner circumferential portion 2b starts to contact the key upper engagement surface 17a on the other side beyond the highest point of the key upper inclined surface 17b.

At this time, since the upper fastening surface 17a is inclined at an approximately 80 ° incline, the keys 6a and 6b are raised upward by the restoring force of the spring 8, and the inner peripheral part of the rubber spacer 2 is fastened even with a small force. It is firmly fastened by applying a wedge-shaped force that can give a great force to 11a and 11b, and the rubber spacer 2 is in close contact with the ring diagram 1.

The rubber spacer 2, which is fastened as described above, is firmly maintained by the action that the internal keys 6a and 6b try to escape in the circumferential direction by the centrifugal force during the high speed rotation.

As described in detail above, the present invention can easily disassemble and replace the rubber spacer from the fixed shaft, and the assembly state is constant regardless of skill, and the roundness and rigidity is maintained even in the long-term use due to the double material of the rubber spacer. This extends the life of the rubber spacers, guarantees uniform and clean side trimming at all times and provides a fast and stable exchange.

Claims (1)

Covered with a rubber material along the outer periphery, the 'c' shaped grooves 11a and 11b having an inclination of 80 ° from the outer periphery to the center thereof are cut so that one side of the hollow inner periphery faces each other, and the inner A rubber spacer 2 having a plurality of bolt insertion holes 18 bored in the surface of the main portion 2b; A circular ring with a hollow fixed shaft having a guide hole drilled from the outer circumference to the inner circumference thereof to accommodate the rubber spacer 2 and the ring fastening bolt 10 inserted into the bolt insertion hole 18 are protruded and fixed. (1); Inserted into the guide hole (15a, 15b) in the fixed shaft (3) of the annular road (1), the upper part is protruded, the opposite side surface is fastened to the rubber spacer (2) of the protruding upper part is inclined 30 ° A pair of keys 17 on which the other side is 80 ° and the bottom of the axial direction protrudes from a circular fixed rod, and springs are installed; Wrench hole 12 is drilled in the center, and guide guide grooves for supporting the protruding pins 14a and 14b of the keys 6a and 6b are cut at oblique angles from the circumference to the center. A rotary plate 7 for receiving 13a and 13b; And a cover 9 provided at the side end of the fixed shaft 3 in order to prevent separation of the device 6 and 6b installed in the rotating plate 7 and the fixed shaft 3. Rubber spacers.