JP2001150445A - Rise and fall guide device of upper mold in tire vulcanizing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the rise and fall guide technique of the upper mold in a tire vulcanizing apparatus attaching slider blocks to tie rods to exclude a conventional bracket to prevent the increase of the machine height of the tire vulcanizing apparatus and widely taking the span between the slider blocks to impart sufficient rigidity to a rise and fall part. SOLUTION: In a tire vulcanizing apparatus for vulcanizing and molding the green tire T held between both upper and lower molds 1, 2, slider blocks 40 are attached to at least two tie rods 13 at more than two upper and lower places and guide rails 50 for guiding the slide direction of the slider blocks in the rise and fall direction of a top plate 10 are attached to a machine frame 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ascending and descending guide technology for an upper mold in a tire vulcanizing apparatus for vulcanizing a green tire (green tire).

[0002]

2. Description of the Related Art In a tire vulcanizing apparatus, an upper mold is fixed to a top plate supported so as to be able to move up and down, a lower mold is fixed to a bottom plate supported on a fixed side, and a plurality of lower molds are vertically mounted on the top plate. In a state in which (for example, four) tie rods are clamped to the bottom plate, the green tire is held between the upper and lower molds and vulcanized. In this case, in order to put the green tire before vulcanization and the tire after vulcanization into and out of the mold, it is necessary to vertically open and close the upper mold together with the top plate using a hydraulic cylinder and open and close the two molds. is there.

When the upper mold is moved up and down, it is necessary to hold the upper mold horizontally and to maintain the center position. For this purpose, an elevating guide device is provided. Conventionally, as an ascent / descent guide device for an upper die, for example, as shown in FIGS.
The slider block 9 (or cam follower) is mounted above and below the bracket 81, and a guide rail 90 for guiding the sliding direction of each slider block 9 in the vertical direction of the top plate 80 is mounted on the machine frame 91. Had a structure.

[0004]

As described above, in the elevating guide device in which the slider block slides on the guide rail, in order to make the elevating part sufficiently rigid, the span between the vertically arranged slider blocks is required. Need to be taken widely. However, as in the past, when a bracket is attached to the top surface of the top plate and a slider block is attached to this bracket, the height of the bracket must be increased in order to increase the span between the slider blocks. The height of the tire vulcanizing device is increased, which causes a problem in terms of an increase in manufacturing cost and a layout of a factory.

The present invention has been made to solve the above-mentioned conventional problems, and focuses on a tie rod originally suspended from a top plate, and attaches a slider block to the tie rod to thereby solve the conventional problem. In the tire vulcanizing apparatus, the bracket of the tire vulcanizing apparatus is not increased so that the height of the tire vulcanizing apparatus is not increased, and the span between the slider blocks is widened so that the ascending and descending portions can have sufficient rigidity. It is an object to provide an ascending and descending guide device for an upper die.

[0006]

In order to solve the above-mentioned problems, an elevation guide device for an upper mold in a tire vulcanizing apparatus according to the present invention is configured such that an upper mold is fixed to a top plate supported so as to be able to move up and down. The lower mold is fixed to the fixed and supported bottom plate, and a plurality of (for example, three or four) tie rods suspended from the top plate are clamped to the bottom plate and held between the upper and lower molds. In a tire vulcanizing apparatus for vulcanizing and forming a green tire, slider blocks are attached to at least two or more locations on at least two or more tie rods, and guide rails for guiding the sliding direction of each slider block in the direction of elevating the top plate. Is attached to the machine frame.

[0007] In this elevating guide device, when a raw tire before vulcanization or a tire after vulcanization is taken in and out of a mold,
The upper mold is vertically moved by the hydraulic cylinder together with the top plate. When this top plate (upper mold) is raised and lowered, the slider block attached to the tie rod
It slides along the guide rail attached to the machine frame, whereby the top plate can be raised and lowered while maintaining the horizontal position of the upper mold and the center position.

Since the slider block is mounted on the tie rod, the height of the tire vulcanizing apparatus does not increase, and the span between the slider blocks is widened so that the elevating portion has sufficient rigidity. be able to.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a side view of an elevating guide device according to an embodiment of the present invention, FIG. 2 is a bottom view of an upper die in the elevating guide device, and FIG. 3 is a sectional view taken along line AA of FIG.

In FIG. 1, reference numeral 1 denotes an upper mold, which is fixed to a lower surface of a top plate 10 via an upper heat insulating plate 11 and an upper platen 12. Reference numeral 2 denotes a lower mold, and a lower heat insulating plate 21 and a lower platen 22
Has been fixed through. The tie rods 13 (total of four) are respectively provided at the four corners of the top plate
The raw tire T held between the upper and lower molds 1 and 2 is vulcanized and formed while the tie rod 13 is clamped to the bottom plate 20 by the clamp member 3.

Of the four tie rods 13, two tie rods 13 facing each other diagonally across the upper mold 1.
13, slider blocks 40 are attached to two upper and lower portions. The slider block 40 is connected to the tie rod 1 via a bracket 41 formed in a square block shape.
3 is attached. As shown in FIG. 3, a mounting hole 42 for fitting to the tie rod 13 is formed at the base end of the bracket 41, and a split groove 43 is formed in the mounting hole 42. A slider block 40 is attached to the tip of the bracket 41, and a sliding groove 44 is formed in the tip surface of the slider block 40 in a vertical direction. The bracket 41 is fixed to the tie rod 13 by fitting the mounting hole 42 to the tie rod 13 and tightening the split groove 43 with a bolt 45.

A guide rail 50 is attached to the machine frame 5 of the tire vulcanizer so as to extend in the vertical direction, and the sliding groove 44 of the slider block 40 can slide on the guide rail 50. As a result, each slider block 40 slides in the vertical direction (vertical direction) of the top plate 10.

Therefore, in this lifting guide device, when the green tire before vulcanization and the tire after vulcanization are taken in and out between the dies 1 and 2, the upper die 1 together with the top plate 10 are connected to the hydraulic cylinder (see FIG. (Not shown). When the top plate 10 is moved up and down, the slider block 40 attached to the tie rod 13 slides along the guide rail 50 attached to the machine frame 5,
The top plate 10 can be moved up and down while maintaining the horizontal position of the upper mold 1 and the center position.

In the lifting guide device, the slider block 40 is connected to the tie rod 1 via the bracket 41.
3, the height of the tire vulcanizer does not increase, and the span between the slider blocks 40, 40 is widened, unlike the prior art in which the bracket 81 is mounted on the upper surface of the top plate 80. In this way, the elevating part can have sufficient rigidity.

Although the embodiment of the present invention has been described with reference to the drawings, the specific configuration is not limited to this embodiment. For example, when four tie rods are provided as in the embodiment, a slider block may be attached to all of the four tie rods, and the slider block may be slid along the guide rail. It is also possible to arrange three tie rods so as to form a triangle. In this case, a slider block is attached to all three tie rods and the slider block is slid along the guide rail. It may be. Also, the slider block may be attached to at least two upper and lower locations per one tie rod, and may be attached to three or more upper and lower locations.

[0016]

As described above, in the lift guide device according to the present invention, since the above structure is adopted, the height of the tire vulcanizing device does not increase, and the height between the slider blocks does not increase. The effect is that the span can be made wider so that the ascending and descending portions can have sufficient rigidity.

[Brief description of the drawings]

FIG. 1 is a side view of an elevating guide device according to an embodiment of the present invention.

FIG. 2 is a bottom view of an upper mold in the elevation guide device.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a side view showing a conventional elevating guide device.

FIG. 4 is a plan view showing a conventional elevating guide device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper mold 2 Lower mold 5 Machine frame 9 Slider block 10 Top plate 13 Tie rod 40 Slider block 41 Bracket 50 Guide rail T Raw tire

[Procedure amendment]

[Submission date] January 6, 2000 (200.1.6)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is a side view of an elevating guide device according to an embodiment of the present invention.

FIG. 2 is a bottom view of an upper mold in the elevation guide device.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a side view showing a conventional elevating guide device.

FIG. 5 is a plan view showing a conventional elevating guide device.

[Description of Signs] 1 Upper die 2 Lower die 5 Machine frame 9 Slider block 10 Top plate 13 Tie rod 40 Slider block 41 Bracket 50 Guide rail T Raw tire

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Claims (1)

[Claims] An upper mold is fixed to a top plate supported so as to be able to move up and down, a lower mold is fixed to a fixedly supported bottom plate, and a plurality of tie rods suspended from the top plate are clamped to the bottom plate. In a tire vulcanizing apparatus for vulcanizing and molding a green tire held between upper and lower molds in a state in which the slider blocks are attached to at least two or more tie rods at two or more upper and lower positions, the sliding of each slider block is performed. An ascending and descending guide device for an upper die in a tire vulcanizing device, wherein a guide rail for guiding the direction in the ascending and descending direction of the top plate is attached to the machine frame.