KR20100043316A

KR20100043316A - Tire cutting machine

Info

Publication number: KR20100043316A
Application number: KR1020080102303A
Authority: KR
Inventors: 이병양
Original assignee: 금호타이어 주식회사
Priority date: 2008-10-20
Filing date: 2008-10-20
Publication date: 2010-04-29

Abstract

The present invention relates to a tire cutting device for cutting a tire in a radial direction in order to produce a tire specimen for inspection of the structure of the tire,

A table 10 rotatably installed on the base frame 11 and on which the tire 50 is placed; The tire 50 mounted on the table 10 is cut by using two diamond band saws 21 which are moved back and forth along the rail 12 provided in the base frame 11 and spaced apart at regular intervals. A cut section 20 for polishing the cut surface; It is characterized in that it comprises a; clamping portion 30 to hold the bead portion of the tire 50 loaded on the table 10 and to prevent the tire 50 from moving during cutting by the cutting portion 20.

Therefore, at the same time as the tire is cut, the surface to be smoothly polished and the tire specimen can be separated from the tire through a single cutting operation, thereby reducing the time required to manufacture the tire specimen, and the operator away from the apparatus. Work safety is improved because work can be carried out in position.

Description

Tire Cutting Machine

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire cutting device for radially cutting tires in order to produce tire specimens for inspecting the histology of tires. It relates to a tire cutting device that can be shortened.

In general, tires correspond to composite components such as innerliner rubber and tread rubber, and carcass plies, steel belts, and high strength wires. Therefore, in order to analyze the structure of the finished tires and grasp manufacturing problems, tire specimens in which the tires are cut radially are manufactured.

However, tires have many problems in cutting operations due to the structural and material properties of the tires described above. That is, when the operator cuts the tire directly, the cross-sectional state is not constant, and the polishing operation on the cut surface must be performed as a separate post-process, as well as a risk in working. And, there is a disadvantage that the size of the cut tire specimen is not constant. In addition, since tires are composed of a combination of materials with completely different physical properties, there are many dangers for the operator to cut the tires himself.

Accordingly, a tire cutting device was developed to cut a tire by cutting means capable of cutting all materials constituting the tire while fixing the tire by using a strong fixing jig, and was disclosed in Korean Patent Laid-Open Publication No. 10-2005-0036215. .

In the conventional tire cutting device, the circular cutter is operated up and down in a state where the tire is fixed to the jig, thereby cutting from the tread portion of the tire to the sidewall. Therefore, it is possible to improve the safety and accuracy in the production of tire specimens, it is possible to obtain a high-finished finished surface without the secondary polishing process.

However, for this purpose, the circular cutter should be a product capable of cutting even the steel wire of the steel belt and the tire bead part. If the circular cutter cannot cut the steel wire of the tire bead part, the tire bead part is cut using a separate device capable of cutting the steel wire after cutting to the side wall of the tire using the circular cutter. In other words, the tire cutting process is carried out in two stages. In this case, since the surface of the cut tire is not smooth, a post-process of further polishing the tire surface is essential.

In the conventional tire cutting apparatus, the tire is cut by using a circular cutter while the tire is fixed with a jig. Therefore, in order to separate the tire specimen from the tire, the tire is first cut and then the tire is cut in a circumferential direction. After rotating, there is a problem of performing the second cutting operation again.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a tire cutting device capable of shortening the production time of a tire specimen by simultaneously performing a tire cutting operation and a polishing operation on a cutting surface. .

In addition, the present invention can reduce the number of workers by automating the clamping and cutting operation for the tire loaded on the table as well as to control the device from the outside to prevent the occurrence of a safety accident during the operation of the tire cutting device The purpose is to provide.

Tire cutting device of the present invention for achieving the above object, the table is installed rotatably on the base frame and the tire is raised; A cutting part which moves back and forth along the rail provided in the base frame and cuts the tire mounted on the table using two diamond band saws spaced at regular intervals and polishes the cut surface; And a clamping part for holding the bead part of the tire loaded on the table and preventing the tire from moving during cutting by the cutting part.

In addition, according to the tire cutting device of the present invention, the cutting portion, a pair of drive rollers for rotating the diamond band saw, respectively, and a pair of supports disposed respectively on the upper side of the drive roller to support the diamond band saw saw A pair of tension adjusting rollers disposed between the rollers, the driving rollers and the supporting rollers to adjust the tension of the diamond band saw, and a pair of driving motors installed on the cutting frame to drive the driving rollers, respectively. It characterized in that it comprises a protective cover installed along the outside of the diamond band saw.

In addition, according to the tire cutting device of the present invention, the tension control roller is characterized in that it is moved back and forth by the tension control cylinder installed in the frame.

Further, according to the tire cutting device of the present invention, the table is tilted by a tilting pneumatic cylinder rotatably installed at its lower portion.

Further, according to the tire cutting device of the present invention, the table has a pair of limit bars which are installed at the front end of the cutting part to limit the movement of the tire, the groove into which the diamond band saw is inserted by a predetermined distance from the cutting end side It is characterized by being formed.

In addition, the tire cutting device of the present invention, the movement means for moving the clamping portion back and forth and the movement guide for guiding the front and rear movement of the clamping portion; characterized in that it further comprises.

The tire cutting device of the present invention described above can smoothly polish the cut surface at the same time as cutting the tire, and can separate the tire specimen from the tire through one cutting operation, thereby reducing the time for producing the tire specimen. And, since the operator can work in a position far from the device there is an effect that the work safety is improved.

That is, conventionally, the first cutting is performed to the sidewall using a tire cutting device, and then the tire bead part is cut secondly using a separate equipment, and the cut surface is polished, which takes about 15 minutes. However, when the tire cutting device of the present invention is used, it takes about 2 minutes and 30 seconds for cutting tires for passenger cars and about 4 minutes and 40 seconds for cutting tires for trucks and buses. It is possible to shorten.

In addition, the tire cutting device of the present invention can perform the tire cutting operation alone, as well as the effect of performing other operations during the tire cutting operation due to automation.

Hereinafter, with reference to the accompanying drawings illustrating a tire cutting device of the present invention.

1 is a schematic view showing a tire cutting device according to the present invention, Figure 2 is a block diagram showing a tire cutting device of the present invention, Figure 3 is a side view showing a cutting portion of the main configuration of the present invention, Figure 4 is a reference diagram showing a state of cutting the tire with the tire cutting device of the present invention.

The tire cutting device according to the present invention includes: a table (10) rotatably mounted on a base frame (11) and on which a tire (50) is placed; The tire 50 loaded on the table 10 is cut by using two diamond band saws 21 that are moved back and forth along the rail 12 provided in the base frame 11 and spaced apart at regular intervals. And cutting portion 20 for polishing the cutting surface; A loading unit (not shown) for loading a tire (50) onto the table (10); A clamping part 30 for holding the bead part of the tire 50 loaded on the table 10 and preventing the tire 50 from moving during cutting by the cutting part 20; A moving unit (not shown) for moving the clamping unit 30 back and forth and a movement guide 35 for guiding the front and rear movement of the clamping unit 30; And a control panel (not shown) for controlling the above devices.

The cutting section 20 is a pair of drive rollers 22 for rotating the diamond band saw 21, respectively, and disposed above the drive roller 22, respectively, to support the diamond band saw 21 A pair of tension rollers 24 disposed between the pair of support rollers 23, the driving rollers 22 and the support rollers 23, respectively, to adjust the tension of the diamond band saw 21; A pair of drive motors 25 installed in the cutout frame 26 to drive the drive rollers 22, protective covers 27 provided along the outer side of the diamond band saw 21, and the cutout frame And a tension control cylinder 28 installed at 26 to move the tension control roller 24 back and forth.

Therefore, the driving roller 22 is rotated according to the operation of the driving motor 25, the diamond band saw 21 is the driving roller 22, the tension adjusting roller 24 and the support roller 23 Rotated while being supported by At this time, the tension control cylinder 28 moves the tension control roller 24 back and forth so that the diamond band saw 21 maintains a constant tension.

In addition, a tilting pneumatic cylinder 13 is rotatably installed at the lower portion of the table 10 to tilt the table 10, and the tire 50 is moved at the cutting-side end of the table 10. A limiting pair of limit bars 14 is provided. Then, the groove 15 into which the diamond band saw 21 is inserted is formed by a predetermined distance from the front end of the cut portion side of the table 10. Therefore, the cutting part 20 is free to move.

The tire cutting device of the present invention configured as described above is used to cut a tire using a pair of diamond band saws spaced at regular intervals and simultaneously polish the cut surface to obtain a tire specimen without further surface treatment.

When the tire 50 is loaded on the table 10 by the loading part, the clamping part 30 is operated to hold the bead part of the tire 50, and the clamping part 30 is moved by the moving means. The tire 50 is moved to the cut end side of the table 10 while linearly moving under the guidance of 35). At this time, the movement of the tire 50 is limited by the limit bar 14 provided at the front end of the cut portion side of the table 10.

Thereafter, the tilting pneumatic cylinder 13 installed at the bottom of the table 10 is operated to rotate the table 10 to a certain degree so as to be inclined with respect to the base frame 11. Accordingly, the upper bead portion and the lower bead portion are sequentially cut in the process of cutting the tire 50.

In this state, the cut portion 20 moves along the rail 12 in the table direction, and the tire 50 is cut according to the movement of the cut portion 20. As the cutout portion 20 moves in the table direction, the diamond band saw 21 of the cutout portion 20 is inserted into the groove 15 provided in the table 10, and the diamond band saw 21 is inserted into the cutout 20. The tire 50 loaded on the table 10 is cut by moving along the groove 15 while being rotated in the cutout 20.

At this time, since the diamond band saw 21 is spaced a predetermined interval, it is possible to obtain one tire specimen in one cutting operation. That is, by simultaneously cutting both sides of the tire specimen using a pair of diamond band saws 21 spaced at regular intervals, the tire specimen is separated from the tire 50 by one cutting operation.

And since the tire 50 is cut | disconnected using the high hardness diamond band saw 21, it becomes possible to cut | disconnect the steel wire, the steel belt, etc. of a tire bead part simultaneously with the other part of the tire 50. FIG. In addition, as the tire 50 is cut using the wide diamond band saw 21, the cutting operation is simultaneously performed on the cut surface. In other words, immediately after the tire 50 is cut using the diamond band saw 21, polishing of the cut surface is performed by the side surface of the diamond band saw 21. Therefore, there is no need to perform an additional polishing process according to the cutting of the steel material of the tire 50.

Although the preferred embodiments of the present invention have been described above, the scope of the present invention is not limited to such specific embodiments, and those of ordinary skill in the art are appropriately within the scope described in the claims of the present invention. Changes will be possible.

1 is a schematic view showing a tire cutting device according to the present invention.

Figure 2 is a block diagram showing a tire cutting device of the present invention.

Figure 3 is a side view showing a cut portion of the main portion of the present invention.

Figure 4 is a reference diagram showing a state of cutting the tire with a tire cutting device of the present invention.

10: Table 11: Base Frame

12: rail 13: pneumatic cylinder for tilting

14: limit bar 15: home

20: cut 21: diamond band saw

22: drive roller 23: support roller

24: tension control roller 25: drive motor

26: cutout frame 27: cover

30: clamping part 35: movement guide

50: tires

Claims

A table 10 rotatably installed on the base frame 11 and on which the tire 50 is placed;

The tire 50 mounted on the table 10 is cut by using two diamond band saws 21 that are moved back and forth along the rail 12 provided in the base frame 11 and spaced apart at regular intervals. And cutting section 20 for polishing the cut surface;

And a clamping part 30 for holding the bead part of the tire 50 loaded on the table 10 and preventing the tire 50 from moving during cutting by the cutting part 20. Tire cutting device.

The method of claim 1,

The cutting section 20 is a pair of drive rollers 22 for rotating the diamond band saw 21, respectively, and disposed above the drive roller 22, respectively, to support the diamond band saw 21 A pair of tension rollers 24 disposed between the pair of support rollers 23, the driving rollers 22 and the support rollers 23, respectively, to adjust the tension of the diamond band saw 21; And a pair of drive motors 25 installed on the cutout frame 26 to drive the driving rollers 22, respectively, and protective covers 27 installed along the outer side of the diamond band saw 21. Tire cutting machine.

The method of claim 2,

The tension control roller 24, the tire cutting device, characterized in that the front and back movement by the tension control cylinder (28) installed in the cutting frame (26).

The method of claim 1,

The table (10) is a tire cutting device, characterized in that the tilt by a tilting pneumatic cylinder (13) rotatably installed at the bottom thereof.

The method of claim 1,

The table 10 has a pair of limit bars 14 provided at the front end of the cutout part to restrict the movement of the tire 50, and the groove 15 into which the diamond band saw 21 is inserted is a cutout part. Tire cutting device, characterized in that formed by a predetermined distance from the side end.

The method of claim 1,

Tire cutting device further comprises a; moving means for moving the clamping portion (30) back and forth and a movement guide (35) for guiding forward and backward movement of the clamping portion (30).