KR0154389B1 - A device for manufacturing a cone type air bellowse of a car and its manufacturing method - Google Patents

Abstract

The present invention relates to a device for manufacturing a conical air bellows for a passenger car and a method of manufacturing the same, wherein the air bellows (1) is first molded into a conical shape by a case (2) in which the air bellows are expanded in a conical shape, and then the molded air bellows Shrink it into the conical core mold 10 as in (1) and then squeeze in the vulcanization mold 11 to maintain a uniform quality state for the density and thickness of the molded product, as well as the air bellows ( 1) is primarily molded by the case 2 and then vulcanized into the vulcanization mold 11 so that the configuration of the apparatus is not complicated.

Description

Apparatus and method for manufacturing conical air bellows for passenger car

1 is a case according to the present invention (a) is a schematic configuration.

(b) is a fragmentary sectional view taken along line I-I of (a).

2 is a state in which the air bellows is inserted into the case according to the present invention and the shape.

3 is a state in which the case in which the air bellows is shaped is inserted into the vulcanization mold and vulcanized.

4 is a state in which the air bellows is inserted into the vulcanization mold and shaped according to the prior art.

5 is a state diagram in which the air bellows shaped by the prior art is vulcanized in the vulcanization mold.

* Explanation of symbols for main parts of the drawings

1: air bellows 2: case

3; Slider 3a: Opening Groove

3b: moving groove 4: driven roll part

5: first driven roll 5a: first arm

5b, 6b, 7b: insertion end 6: second driven roll

6a: 2nd arm 7: 3rd driven roll

8: fixing bracket 9: driving roll

10: core mold 11: vulcanization mold

11a; Shape

The present invention relates to a device for manufacturing a conical air bellows for a passenger car and a method for manufacturing the same, and in particular, the shaping and vulcanization of the air bellows eliminates the use of high-pressure air and hot water, as well as simplifying the equipment and code density and angle of the product. And it relates to a manufacturing apparatus and a manufacturing method of a conical air bellows for a passenger car that can improve the quality by removing the non-uniform thickness.

In general, the conical air bellows 101, which is a rubber material having no bead part, is formed of inner rubber, first case (2) cord paper, and outer rubber, as shown in FIG. 4. Likewise, the case 113 is inserted into the vulcanization mold 111, which is inserted into the cylindrical case 113 to form the conical shape surface 111a, and the high-pressure air is injected into the shaping brother 112, while the case 113 is vulcanized. The air bellows 101 is primarily deformed into a conical shape by expanding toward the shape surface 111a of the 111.

Subsequently, as shown in FIG. 5, after the air bellows 101 is formed in a conical shape, the airbag 114 is inflated while the hot water is filled after removing the shaping brother 112 and the case 113. To cure the bellows.

However, as described above, when the air bellows 101 is first formed by an air bag that is deformed into a cone shape by the injection of high pressure air and is expanded by the injection of hot water in the second time, the auxiliary equipment according to the supply of the high pressure air and the hot water is provided. If the configuration of the device is very complicated and the air bellows 101 is incorrectly seated on the shape surface 111a of the vulcanization mold 111 during the vulcanization operation, the shape of the product may not be manufactured correctly. There was.

In addition, although the angle and density of the first and second cord papers constituting the air bellows 101, which are small in size, must be uniformly changed even after molding, the thickness of the second cord paper must be uniform even though the thickness is uniform throughout. Due to aging due to long-term use of the shaping brother 112 and the airbag 114 which vulcanize the air bellows 101, the maintenance of a uniform quality state for the density and thickness of the molded product is very high. There was a problem that became difficult.

Accordingly, the present invention was invented to solve the above problems, the air bellows is excellent in quality as well as the expansion of the driven roll consisting of a plurality of driven rolls which are expanded in a conical shape so as to simplify the configuration of the apparatus and the driven rolls after expansion The air bellows is first molded by using a case composed of a driving roll that presses the air bellows to remove the air therein, and then inserts the air bellows into a core mold formed in a conical shape to shrink it at a predetermined time. The core mold is vulcanized by inserting it into the vulcanization mold.

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

(A) and (b) of FIG. 1 show a case according to the present invention, in which the case 2 of the present invention is a slider 3 of a conical shape and a driven roll part coupled to the slider 3 ( 4), an air bellows (1) inserted into the driven bracket (4) hinged at one end of the driven roll part (4) and the driven roll part (4) coupled to the fixed bracket (8) and expanded in a conical shape; It consists of a drive roll 9 spaced apart from the driven roll 4 to remove the air therein while pressing.

Here, the driven roll 4 is composed of driven rolls 5, 6, and 7 hinged to correspond to the plurality of arms 5a, 6a, and 7a coupled to the slider 3, respectively. 3) A plurality of driven rolls 5, 6, and 7 protrude in both sides as shown in FIG. Insertion ends 5b, 6b, and 7b are formed, and moving grooves 3b are formed along the longitudinal direction to both sides so that the insertion ends 5b, 6b, and 7b are inserted, and the arms 5a and 6a. , 7a are formed so that the slider 3a is opened at one end and the upper surface of the slider 3, respectively.

Here, the driven roll portion 4 of the case 2 may be composed of three or more arms and driven rolls in order to improve the formability of the air bellows (1).

Thus, when the operator pushes the air bellows 1 into the driven roll part 4 of the case 2 and pushes it in the direction of the arrow as shown in FIG. 2 with a device such as a cylinder not shown, the driven roll part 4 (5a, 6a, 7a) of the) is opened by the slider 3 as an arrow, and the driven rolls (5, 6, 7) hinged to the (5a, 6a, 7a) are respectively fixed bracket (8) The conical shape of the hinge coupling portion of the air bellows (1) with the center is opened, and then the drive roll (9) is rotated while pressing the air bellows (1) to discharge the remaining air inside.

Subsequently, the air bellows 1 formed into a cone shape is inserted into the core mold 10 having the same shape and left for a predetermined time to expand and contract the air bellows 1 while being in close contact with the surface of the core mold 10. Then, the core mold 10 is inserted into the conical shape surface 11a of the vulcanization mold 11 to be vulcanized as shown in FIG.

As described above, according to the present invention, the air bellows is first molded into a cone by a case in which the air bellows are expanded into a cone shape, and then contracted into a conical mold having the same conical shape as the molded air bellows, followed by vulcanization in a vulcanization mold. In addition, the uniformity of the density and thickness of the molded product is maintained, and the air bellows is first molded by the case and then vulcanized into a vulcanization mold, thereby simplifying the construction of the device.

Claims (2)

A conical slider 3 having a moving groove 3b formed on both sides along the longitudinal direction, and having an opening groove 3a for opening one end and an upper surface thereof, and a moving groove 3b of the slider 3. Follower consisting of driven rolls 5, 6, 7 hinged to correspond to a plurality of arms 5a, 6a, 7a having insertion ends 5b, 6b, 7b, respectively protruding on both sides thereof, Air bellows inserted into the roll portion 4, the fixed bracket 8 hinged to the driven roll portion 4 and one end portion thereof, and the driven roll portion 4 coupled to the fixed bracket 8 and expanded in a conical shape. A case (2) composed of a driving roll (9) spaced from the driven roll portion (4) to pressurize (1) and remove air therein; An apparatus for producing a conical air bellows for a passenger car, which is composed of a core mold (10) having the same conical shape so as to sandwich and shrink the air bellows (1) molded by the case (2). Inserting the air bellows 1 into the driven roll part 4 of the case 2 and spreading it in a conical shape, and then the driving roll 9 rotates while pressing the air bellows 1 to discharge residual air therein; A step of allowing the air bellows 1 shaped into a conical shape to be inserted into the core mold 10 having the same shape and allowing the air bellows 1 to be inflated to be in close contact with the surface of the core mold 10 while being contracted; A method of manufacturing a conical air bellows for a passenger car, comprising the step of inserting the core mold 10 into the conical shape surface 11a of the vulcanization mold 11 to vortex it.