KR100207806B1 - Method for manufacturing mould - Google Patents

Abstract

The manufacture of the segment mold for tire manufacturing required mechanical processing such as forming the saw cutting tab of the mold, which required poor workability and skill.

The present invention enables the internal, external, and side processing required by directly assembling and fixing segmental molds on each jig without additional processing, and newly developed and configured jig for such an action. Therefore, the upper flange processing jig, side processing jig, external processing jig, internal processing jig, angular processing jig has been newly developed to eliminate unnecessary mechanical assembly tabs.

Description

Segment mold processing method for tire manufacturing and processing jig device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire mold processing method, and in particular, to a segment mold processing method for manufacturing a tire, which is formed using a segment and processed using a shelf jig, and a processing jig thereof.

In the prior art tire segment mold manufacturing method, a segment mold was manufactured by manufacturing a tire tread segment into pieces or a ring segment, and cutting the molded segment mold with a saw to adjust the origin using a reference surface processing jig. This conventional method has to go through the steps of processing the assembly tap hole in the segment mold when the reference surface processing, the step of fixing the original shape by using a level bolt to combine the segment mold with the reference surface processing jig, the ring-shaped Cutting the segment mold with a saw, machining the segment mold side angle using the segment mold side angle machining jig, machining the part using the lathe machining jig, and attaching the segment mold to the internal machining lathe jig to complete the process Prepared in steps (Patent Application 93-17601).

This conventional method has a problem in that it takes a long time and requires specialized functions because the process is subdivided at the manufacturing stage.

An object of the present invention is to solve the problems as described above by casting the shape of the segment mold in a form that can be fixed to each jig to simplify the respective manufacturing process and at the same time to develop a jig for processing according to the unskilled person It is to provide a method for processing a segment mold for manufacturing a tire and a processing jig device that can be easily manufactured even.

Figure 1 (a) (b) is a perspective view of the segmental mold and its assembled state according to the present invention.

2 is a perspective view showing a segmental mold reference surface processing jig according to the present invention.

3 is a perspective view showing a state in which the segment mold is fixed to the segment mold reference surface processing jig according to the present invention.

4 is a cross-sectional view of FIG.

5 is a perspective view showing a state of the side processing jig for processing the side of the segment mold according to the present invention.

6 is an exploded perspective view showing a state in which the segment mold is coupled to the side processing jig.

7 is a cross-sectional view of FIG.

8 is a perspective view showing a segmental mold in which the center line and the side cut line are cracked in the present invention.

9 is a perspective view showing a shelf outer diameter processing jig according to the present invention.

Figure 10 is a perspective view showing the combination of the segment mold required for manufacturing tires to the outer diameter machining jig.

11 is a cross-sectional view showing a state in which a segment mold is fixed to a lathe inner working jig.

12 is a perspective view showing a segment mold side angle correction jig in the present invention.

13 is a perspective view showing a state in which the segment mold is coupled to the segment mold side angle correction jig.

* Explanation of symbols for main parts of the drawings

1: segment mold 3: reference plate

3c: Assembly bolt 3d: Assembly plate

3e: Assembly bolt 4: Top plate

4a: center axis hemisphere part 5: rotation table

6: reference plate 7: reference line

8: long bolt 9: assembly plate

10: segment mold center line 11,11a: segment mold cutting line

12,12a: Inside and outside level control plate

13, 13a: bolt hole 14: protrusion

15: assembly 16: reference plane

17: bottom part 18: front and rear feed shaft

19: fixed block 20: assembly plate

21: long bolt: upper flange processing jig

B: side processing jig c: external machining jig

D: Internal machining jig

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

1a and b are perspective views of a segment mold and its assembled state, and FIGS. 2 to 4 are views showing a jig and an assembled state for the upper flange processing of the segment mold, and FIGS. 5 to 7 are side views of the segment mold. It shows the jig for and its fixed state.

In addition, Fig. 8 is a perspective view showing a segmental mold with a center line and a side cutting line cut out, Fig. 9 is a perspective view showing a shelf external machining jig, and Fig. 10 shows a segmental mold required for tire manufacture in a shelf external processing jig. A perspective view showing the combination is shown, respectively, FIG. 11 is a cross-sectional view showing a state in which a segment mold is coupled to a lathe mold processing jig, FIG. 12 is a perspective view showing a segment mold side angle correction jig, and FIG. 13 is a segment A perspective view showing a state in which a segment mold is coupled to a mold side angle correction jig is shown.

In the drawing, 1 shows a segment mold, and 2 shows a form in which a segment mold is collected and cast in a ring form.

As shown in the drawing, the present invention is a single or integrally molded six to eight segment molds, cut into a saw and then processed in the steps of top flange addition, side processing, external processing, internal processing, angle processing In the method of processing the segment mold to be processed, the top plate 4 and the reference plate 3 are assembled with at least four ears with assembly bolts 3a and adjustment nuts 3b, but having a central axis at the center bottom of the top plate 4. The hemispherical part 4a is fitted to the upper hemisphere of the central shaft 3c, and the upper plate has the A-shaped assembly plate 3d fixed to the rear side of the lower flange by the assembly bolt 3e and another front side assembly. In the upper flange processing machine (a) to fix the front side with the bolt (3f) and the assembling nut (3g) to process the process leaving only the processing margin (α), the rotatable and + -shaped groove (5a) is formed on top Bolt the reference plate (6) to the table (5) and in the center of the reference plate Assemble the long bolt 8 with a certain width along the reference line 7 marked to pass through the fastening bolt, and place the upper mold flanged segment mold between them, and fix it using the mounting plate 9. In step (b), the step of processing the side face of the segment mold, the segment mold center line 10 is displayed at the center by using a line drawing mechanism, and the segment mold cutting line 11, 11a is disposed on both sides. The above-mentioned gold bleeding completed segment molds are formed by using the plurality of bolt holes 13 and 13a of the inner and outer level control plates 12 and 12a segmented into units so as to form a round shape. Assembling and fixing between the outer level control plates 12 and 12a, and then seating on a circular outer machining jig (C) to precisely process the contour, leaving only the inner machining margin (β), and the outer peripheral center of the segment mold Internal to the protruding portion 14 rounded to the After assembling the bolts so that the assembling hole 15 of the processing jig meets, the roundness and concentricity are matched, and the unprocessed portion is processed by being close to the remaining processing margin β and the external processing jig, and the reference plane 16. It is formed obliquely to this hypotenuse and the bottom portion 17 is configured to be wide, the lower side of the groove portion (16a) of the reference surface there is a fixed block 19 assembled so that the front and rear feed shaft 18 is adjustable, and the left and right sides of the assembly plate ( 20) It is composed of the step of processing the margin between the segment molds due to thermal expansion during the tire manufacturing by fixing the inner mold processed segment mold to the angle processing jig (e) with the long bolt 21 that can be fixed.

The upper plate 4 and the reference plane plate 3 of the upper flange processing machine commonly used in the present invention may be formed of a rectangular body or a polygonal body as necessary.

The rotary table 5 of the side machining jig of the present invention has a circular structure, and two long bolts 8 are vertically fixed on both sides along the reference line 7 to fasten the assembly plate 9.

In the angular processing jig of the present invention, the assembly plate 20 is fastened to the long bolt 21 formed on the hypotenuse and the reference surface 16 on which the segment mold can be mounted is protruded to the left and right sides thereof.

Although the assembly method used in the present invention used bolts and nuts, various methods may be employed as necessary.

In the present invention, in the side processing, the reference auxiliary block is disposed between the long bolt 8 and the segment mold to complete the precision.

In the present invention, the assembly block 15a is interposed between the segmental mold and the internal machining jig when the internal machining jig is assembled to complete the precision.

As shown in the machining process of the present invention, the jigs used in each step are simple bolt nut assembly methods, and mechanical processing processes such as cutting by a saw and forming a tab hole are not required as in the prior art. You can participate. In addition, because the processing is simple, manufacturing time is shortened and precision is increased, thereby increasing manufacturing reliability.

Claims (4)

In the method of processing a segment mold for tire manufacturing, which is formed by cutting six to eight segment molds individually or integrally and cutting them, and then processing them in the stages of upper flange processing, side processing, external processing, internal processing, and angular processing. Assemble the top plate 4 and the reference plate 3 with the assembling bolt 3a and the adjusting nut 3b at least at four ears, but at the center side hemisphere 4a at the center bottom of the top plate 4 with the central axis 3c. The upper hemisphere of the) is fitted to the top plate, and the A-shaped assembly plate (3d) is fixed to the rear shaft of the lower flange by the assembly bolt (3e), and another front assembly bolt (3f) and assembly nut (3g). In the upper flange processing jig (a) to fix the front side of the furnace to process the process leaving only the processing margin (α), rotatable and + -shaped groove (5a) is formed on the rotary table 5 formed on the upper surface plate ( 6) bolted to the center of the reference plate and marked with the fastening bolt Assemble the long bolt (8) with a certain width along the line (7), and place the segmented mold with the upper flange between them and fix it with the side plate jig (b) to fix it using the assembly plate (9). The step of processing the side, the step of cutting the side-mold segment mold using the drawing mechanism, the center of the segment mold center line 10, and the step of chamfering the segment mold cutting line 11 (11a) on both sides, the roundness The inner and outer level control plates (12) (12a) divided into units so as to form a plurality of bolt holes (13) and (13a) are assembled and fixed therebetween, and then seated in a circular outer shape processing jig (C). Precise machining of the outer mold, leaving only the processing margin (β), and the assembly of the internal machining jig (D) meets the assembling hole (15) of the protruding portion (14) roundly formed in the center of the outer mold of the finished mold. After the roundness and concentricity The step of processing the unprocessed portion in close contact with the remaining processing margin (β) and the contour processing jig, the reference surface 16 is formed to be inclined to the hypotenuse and the bottom surface portion 17 is a wide configuration, the groove portion 16a of the reference surface On the lower side, there is a fixed block 19 assembled to adjust the front and rear feed shaft 18, and on the left and right sides, the inner diameter is machined in the angle processing jig (e) having the long bolt 21 for fixing the assembly plate 20. A method of manufacturing a segmented mold for tire manufacturing, characterized in that it comprises a step of fixing the segmented mold to process the margin between the segmented mold in accordance with thermal expansion during tire manufacturing. Assemble the top plate 4 and the reference plate 3 with at least four ears with assembly bolts 3a and adjustment nuts 3b, but at the center axis hemisphere 4a at the center bottom of the top plate 4 with a central axis 3c. The upper hemisphere of the 3) is fitted, and the upper plate 4 is fixed to the rear side of the lower flange by the assembly bolts 3e, which have an A-shaped assembly plate 3d, and assembled with another front assembly bolt 3f. Processing margin in the upper flange processing jig which fixes the front side with a nut (3g) Segmental mold processing jig device for manufacturing a tire, characterized in that configured to process only leaving. Bolting the reference plate 6 to the rotary table 5 of the circular structure having a rotatable + groove 5a is formed on the upper surface, the long bolt along the reference line 7 formed in the center of the reference plate 6 8) The two pieces are protruded vertically upward and fixed, and the male bolt is formed at the end of the elongated bolt 8, and is screwed with the assembly plate 9 so as to process the side of the segment mold. Processing jig device. The reference surface 16 is formed to be inclined to the inclined surface and the bottom portion 17 is configured to be narrow, the fixing block 19 is assembled on the lower side of the groove portion 16a of the reference surface 16 so that the front and rear feed shaft 18 is adjustable. And a long bolt 21 capable of fixing the assembly plate 20 on the left and right sides thereof protrudes vertically from both sides of the reference plane to the outside to process the angle of the segment mold.