KR100593036B1 - Belt cutting device for tire building machine - Google Patents

Abstract

The present invention relates to an apparatus for cutting a belt semi-finished product in a molding process in a molding process in a tire manufacturing process, and more particularly, to uniformly cut a belt semi-finished product, which is one of the factors determining quality in manufacturing a tire. The present invention relates to a belt semi-finished cutting device of a tire forming machine which can improve tire uniformity and reduce defect loss in a tire finished state.

Tire, belt semifinished cutting device

Description

Belt cutting device for tire building machine

1 is a front view and a side view of a belt cutting device

Figure 2 is a front assembly view of the belt semi-finished product supply service

3 is a plan view of the belt semifinished product supply service

<Description of Symbols for Main Parts of Drawings>

1,1 ': CLT (Captive Liner Truck) 2,2': Conveyor

3: belt cutting device 4: cutter holder

5: circular cutter 6: vertical cylinder

7: cutting plate 8: rodless cylinder

9: centering device 10: applying device

11: frame

The present invention relates to an apparatus for cutting a belt semi-finished product in a molding process in a molding process in a tire manufacturing process, and more particularly, to uniformly cut a belt semi-finished product, which is one of the factors determining quality in manufacturing a tire. The present invention relates to a belt semi-finished cutting device of a tire forming machine which can improve tire uniformity and reduce defect loss in a tire finished state.

The length of the tire semifinished product and the shape of the cut surface prior to feeding the molding machine have a significant influence on the quality of the tire.

If the length of the tire semifinished product does not match the desired length or the shape of the cut surface is not flat, bad joints and air mixing occur.

In the prior art, a semi-finished product is moved on a conveyor in order to cut a semi-finished product of a tire in a belt servicer of a tire forming machine, and then semi-finished with two circular cutters using a V-pulley and a V-belt by driving a motor. To cut.

At this time, the belt holder was cut by transferring the cutter holders each provided with the two circular cutters from the center outward.

Therefore, the cutting position of the center part does not match with the cutting by the two cutting knifes in the center.

In addition, shaking occurs due to the movement of the cutting knife by the V-belt, which makes it difficult to uniformly cut the belt.

An object of the present invention devised to solve the above problems is to improve tire uniformity in finished tire conditions and to reduce defect loss by maintaining uniform cutting of semi-finished belt, which is one of the quality determining factors in manufacturing tires. It is to provide a belt semi-finished cutting device that can be reduced.

In order to achieve the above object, the present invention provides a belt semifinished product cutting device for cutting a belt semifinished product provided by a conveying conveyor of a belt semifinished product supply service to a predetermined length, comprising: a cutting plate on which the belt semifinished product is placed; A circular cutter installed in the cutter holder over the cutting plate; A vertical cylinder which is integrated with the cutter holder and transfers the cutter holder up and down; A rodless cylinder formed integrally with the vertical cylinder to linearly move the vertical cylinder on a horizontal plane; And a frame on which the rodless cylinder is installed.

Hereinafter, the present invention will be described in detail through examples and drawings.

In the present invention, a single cutter has a uniform cutting surface at the end of the semi-finished product to block joint failure and pneumatic generation, and to prevent minute shaking of the cutter holder caused by the driving of a conventional V-belt by a rodless cylinder. By doing so, it contributes to the improvement of tire overall quality and uniformity, and it is possible to increase the stability by driving the cylinder by air instead of driving the motor by electricity.

1, the cutting plate 7, the circular cutter 5, the cutter holder 4, the vertical cylinder 6, the rodless cylinder 8, the vertical cylinder 6, and the rodless as shown in FIG. 1. The cylinder 8 and the frame 11 are comprised.

The frame 11 constitutes a body and supports the apparatus according to the present invention, and is mounted on the belt semifinished product supply service as shown in FIG.

The frame 11 is mounted to the rodless cylinder 8 is formed to enable a linear movement on the horizontal plane.

The rodless cylinder 8 is integrally formed with a vertical cylinder 6.

In addition, the cutter holder 4 is integrally installed at the end of the vertical cylinder 6 to enable vertical movement.

The cutter holder 4 is provided with a circular cutter 5 capable of cutting a semi-finished belt.

Accordingly, the circular cutter 5 is capable of vertical and horizontal linear motion due to the interaction of the vertical cylinder 6 and the rodless cylinder 8.

At the bottom of the frame 11 is a cutting plate 7 on which semi-finished belts are placed.

The operation of the present invention will be described below.

First, it is mounted on CLT (Captive Liner Truck) (1) for winding belt semi-finished product and then released. Then, it is sensed by optical sensor (not shown) and supplied to conveying conveyor (2,2 ') while adjusting the loop amount of semi-finished belt product. do.

The belt semifinished fabric provided to the conveying conveyor 2,2 'is moved to the belt semifinished cutting device 3 by the conveying conveyor 2,2' which is rotated by a motor.

The belt semi-finished product passing the conveying conveyors 2 and 2 'is moved to the belt cutting device 3 by the length detected by a measuring system (not shown) and then stopped on the cutting plate 7. .

At this time, the circular cutter 5 attached to the cutter holder 4 moves downward from the initial position of the vertical cylinder 6 by the vertical action of the vertical cylinder 5 so that the circular cutter 5 ) Will come into contact.

At this time, the cutter holder 4 is moved left and right by the operation of the rodless cylinder 8 by pneumatic pressure to cut the belt semi-finished product placed on the cutting plate 7 by the circular cutter 5, and then the vertical The cylinder 5 is operated in an upward direction so that the cutter holder 4 stops at an initial position.

As described above, the belt semifinished product cut into a predetermined length by the belt semifinished product cutting device 3 moves to the centering device 9.

The centering device (9) is a cpc device, to align the belt semi-finished product to the center, the hydraulic actuator is operated to perform its role.

The belt semifinished product centered by the centering device 9 is moved to the applying device 10, which is a device for feeding the belt to the drum.

The applying device 10 serves to feed the cut belt to the drum by moving forward and backward by using the air cylinder (6).

The belt returned product moved to the application device 10 is supplied from the lower part of the belt drum, and the application device 10 also rotates at the same speed as the drum rotates.

The first belt is supplied to the drum in the above manner, the # 1 belt is supplied on the drum, and then the second belt is supplied to the drum.

The second belt is the same as the first belt until the process of cutting to a desired length, and is transferred to a drive & advance device after cutting to be provided to the application device 10 in the step of cutting.

The second belt moved to the applying device 10 is brought into contact with the drum by advancing to the drum due to the cylinder like the first belt, and is supplied onto the first belt.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Through the present invention, the product is supplied with a certain length due to the cutting of the semi-finished belt before supplying to the molding machine which has an important influence on the quality of the tire, and brings a uniform cutting surface of the end of the semi-finished product by a single cutter to block joint defects and pneumatics By preventing the slight shaking of the cutter holder caused by the driving of the V-belt by the rodless cylinder, it contributes to the improvement of overall tire quality and uniformity, and to the cylinder driven by air rather than the motor driven by electricity. Stability can be improved.

Claims (1)

In the belt semifinished product cutting device for cutting the belt semifinished product provided by the conveying conveyor of the belt semifinished product supply service to a predetermined length, A cutting plate on which the belt semifinished product is placed; A circular cutter installed in the cutter holder over the cutting plate; A vertical cylinder which is integrated with the cutter holder and transfers the cutter holder up and down; A rodless cylinder formed integrally with the vertical cylinder to linearly move the vertical cylinder on a horizontal plane; And Belt semi-finished product cutting device comprising a frame in which the rodless cylinder is installed.

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