KR200181059Y1 - A cutting machine for rubber band - Google Patents

Abstract

The present invention relates to a cutting device configured to cut a rubber band into a specific shape, and more particularly, to a device for improving productivity by automatically cutting the rubber band.

Conventionally, when the rubber band is cut by a heated cutting knife, the outer surface thereof is slightly melted, and thus, when the rubber band is not taken out quickly, the cut material is stuck to the rubber band again.

Therefore, the present invention moves and stops the rubber band 24 inserted into the rollers 21 and 22, and the cutting knife 111 of the upper mold 11 is lowered to cut the rubber band 24. Since the work to be made, and all the work to take out the material 241 cut by the pincer strip 33 and the moving cylinder 31 is made sequentially and fully automatic, because the present invention can achieve the automation of the rubber band cutting device By maximizing the efficiency of the work to improve productivity and at the same time save significant labor costs, it is possible to maximize the external competitiveness of the rubber band cutting device.

Description

Rubber band cutting device {a cutting machine for rubber band}

The present invention relates to a cutting device configured to cut a rubber band into a specific shape, and more particularly, to a device for improving productivity by automatically cutting the rubber band.

In general, rubber bands are manufactured to have elasticity by weaving rubber bands and fibers together, and are mainly used for various purposes by cutting to the required size.

The above-mentioned cutting device of the rubber band mainly uses a press that is operated by stepping on the foot, and installs a heating wire heater on the upper mold equipped with the cutting knife to slightly melt the outer surface of the material when cutting the rubber band to prevent loosening of the ol. It is.

However, in the case of using a manually operated foot press as described above, a closed end occurs such that the work efficiency is significantly lowered.

In particular, when the rubber band is cut by a heated cutting knife, the outer surface thereof is slightly melted, and thus, when the cut material is not taken out quickly, the cut material is stuck to the rubber band again.

Therefore, since the cutting knife mounted on the upper mold is lowered and the product is cut at the same time, the cut material has to be pulled out one by one at a time, which is very cumbersome and dangerous.

In addition, the conventional cutting device that lowers the upper mold by using the foot, and withdraw the product by using the hand is a problem that the productivity is significantly reduced and labor costs are increased because the equipment is difficult to automate. As a result, the external competitiveness of the rubber band cutting device could not be increased.

The present invention was devised in view of the above-mentioned problems, and its purpose is to provide a rubber band cutting device that can maximize the productivity by increasing the efficiency of work and saving considerable labor costs as the rubber band is automatically cut. It is.

Features of the present invention for achieving the above object, the lower mold 12 mounted on the worktable 1 is formed with a drawing groove 121, is mounted on the top of the operation by the lifting cylinder 13 The upper mold 11 is a cutter 10 equipped with a heating wire heater 112 and a cutting knife 111; A pair of rollers 21 and 22 which are rotated by receiving the power of the stepping motor 23 are mounted in front of the work table 1, and a rubber band 24 is inserted between them to move behind the work table 1. Supply unit 20 and; A moving cylinder 31 mounted on one side of the work table 1 is mounted with a pinching cylinder 32 to enter and exit the draw groove 121 of the lower mold 12, and a 'X' on the pinching cylinder 32. It can be achieved by a rubber band cutting device, characterized in that it is configured by the withdrawal portion 30 to be pinched and drawn out the cut material 241 is mounted in the form of the narrowing grate 33.

1 is a perspective view illustrating an embodiment of the present invention,

2 is an exploded perspective view of the main part of the present invention,

Figure 3a, 3b, 3c, 3d is a partial cross-sectional view sequentially arranged the operating state of the present invention.

Explanation of symbols on the main parts of the drawings

1: work table

10: cutter

11: upper mold

12: lower mold

13: lifting cylinder

20: supply part

21, 22: Roller

23: stepping motor

24: rubber band

25: encoder

26: roll

30: withdrawal part

31: cylinder for movement

32: clamping cylinder

33: narrow area

34: working piece

111: cutting knife

112: heating wire heater

121: Withdrawal Home

221 pulley

231: Timing Belt

241: Material

341 axis

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention for achieving the above object in detail as follows.

As shown in Figures 1 to 3, the lower mold 12 is mounted on the upper portion of the work table 1, the drawing groove 121 is formed on one side of the lower mold 12.

The upper mold 11 is mounted on the upper portion of the lower mold 12 at regular intervals, and the upper mold 11 is connected to the piston rod of the lifting cylinder 13 mounted on the upper portion thereof to move up and down. .

Inside the upper mold 11, the heating wire heater 112 is built-in, the lower surface of the upper mold 11 is equipped with a cutting knife 111 formed in a '??' shape.

The above-described devices are an important configuration of the cutter 10 for cutting the rubber band 24 into a predetermined shape.

The worktable 1 is equipped with a supply unit 20 for supplying a rubber band 24 wound around the roll 26. That is, a pair of rollers 21 and 22 are mounted at the front of the work table 1, and the lower roller 22 is connected to the stepping motor 23 and the timing belt 231 to be rotated. have.

The rubber band 24 wound around the rollers 26 is inserted between the rollers 21 and 22 to move to the rear of the work table 1 when the rollers 21 and 22 rotate. 11) The rubber band 24 can be continuously supplied between the 12 and 12.

An encoder 25 is mounted in front of the pulley 221 fixed to the shaft of the lower roller 22 to control the rotation of the rollers 21 and 22, and the encoder 25 is a roller ( 21) (22) by detecting the rotational speed or the rotation angle to drive and stop the stepping motor 23 by stopping the rubber band 24 when moving a certain distance so that the cutting operation proceeds, and the rubber is completed again The band 24 is moved.

One side of the work table 1 is equipped with a withdrawal unit 30 for withdrawing the cut material 241. That is, the moving cylinder 31 is attached to one side of the said worktable 1, and the pinching cylinder 32 is attached to the piston rod of this moving cylinder 31. As shown in FIG.

The rear side of the pincer strip 33 arranged in the 'X' shape is fixed to the piston rod of the pinching cylinder 32 so that the pincer strips 33 move the 'X' shaft 341 when the piston rod is moved forward or backward. It is composed of opening and closing.

The present invention made of the above-described configuration is the heating die (110) built in the upper mold 11 when the cutting knife 111 is heated while heating the built-in upper mold 11, the lifting cylinder 13 is operated to the upper mold As the 11 is lowered, the heated cutting knife 111 cuts into a predetermined shape while applying heat to the rubber band 24 placed on the upper surface of the lower mold 12.

At the same time, the movable cylinder 31 mounted on one side of the worktable 1 is operated so that the clamping cylinder 32 mounted on the piston rod is moved toward the lower mold 12, so that the clamping tool mounted on the clamping cylinder 32 is moved. The raw material 241 cut between the gaps 33 is inserted into the drawing groove 121 of the lower mold 12 is inserted (33).

Subsequently, when the piston rod is advanced by the operation of the clamping cylinder 32, the rear of the 'X'-type working pieces 34 of the clamping pin 33 is rotated about the shaft 341, and thus the front of the piston rod 32 is moved forward. The narrowing zone 33 is pinched to pinch and fix the material 241.

When the raw material 241 cut in this way is fixed by the pinching grate 33, it is moved back to its original position by the operation of the moving cylinder 31, and the pinching grate 33 is operated by the pinching cylinder 32. As the material is opened, the cut material 241 is dropped to obtain a finished product.

In this case, the lowered upper mold 11 is maintained while being lowered until the material 241 is drawn out and then raised. This cuts the cut knife 111 is heated so that the outer surface is melted material 241 is not bonded again to the rubber band 24 is blocked between the material 241 and the rubber band 24, It is raised when 241 is withdrawn.

As the upper mold 11 is raised and the rollers 21 and 22 are rotated by a predetermined number or rotation angles by the driving of the stepping motor 23 controlled by the encoder 25, the rollers 21 are rotated. Rubber band 24 inserted between the (22) is stopped by moving a certain distance.

Therefore, since the cut portion of the rubber band 24 is moved to the rear to complete the new material so as to perform a new cutting operation, if the above-described process is repeated, the cutting operation is continuously performed and the cutting operation is automatically performed. It is done.

The present invention as described above, the operation to move and stop the rubber band 24 inserted in the rollers (21, 22), the cutting knife 111 of the upper mold 11 is lowered rubber band The present invention is made of the automatic cutting of the rubber band cutting device in which the operation of cutting 24 and all the operations of drawing out the material 241 cut by the pincer strip 33 and the moving cylinder 31 are performed sequentially and fully automatic. Since it is possible to maximize the efficiency of the work to improve the productivity and at the same time significant labor costs can be reduced, so as to maximize the external competitiveness of the rubber band cutting device.

Claims (2)

A drawing groove 121 is formed in the lower mold 12 mounted on the work table 1, and the heating mold 112 is provided on the upper mold 11 mounted on the upper mold 11 and operated by the lifting cylinder 13. A cutter 10 equipped with a cutting knife 111; A pair of rollers 21 and 22 which are rotated by receiving the power of the stepping motor 23 are mounted in front of the work table 1, and a rubber band 24 is inserted between them to move behind the work table 1. Supply unit 20 and; A moving cylinder 31 mounted on one side of the work table 1 is mounted with a pinching cylinder 32 to enter and exit the draw groove 121 of the lower mold 12, and a 'X' on the pinching cylinder 32. Rubber band cutting device, characterized in that configured by the withdrawal portion (30) for pinching and withdrawing the cut material (241) mounted to the narrowing grate (33) arranged in the shape. The device of claim 1, wherein the stepping motor is controlled by an encoder for sensing the rotation of the rollers.