Mould positioning device for rubber vulcanizing machine

Abstract

The utility model discloses a mould positioning device for a rubber vulcanizing machine, which comprises a mould base arranged on the rubber vulcanizing machine and a positioning unit used for positioning and clamping a mould, the positioning unit comprises four clamping pieces respectively arranged on four sides of the mould base, each clamping piece comprises a plurality of positioning heads, a fixing plate and a plurality of guide rods, the fixing plates are installed on the die base, the fixing plates of the four clamping pieces are matched to form a positioning space, a plurality of guide screw holes in threaded connection with the guide rods are formed in the fixing plates, the positioning heads are arranged in the positioning space and connected with the guide rods respectively, and each positioning head comprises an elastic part. The mold positioning device has the beneficial effects that molds with different sizes and shapes can be positioned and clamped, the utilization rate of the mold positioning device is improved, and the practicability is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of rubber vulcanizing machines, and more specifically, it relates to a mold positioning device for rubber vulcanizing machines. Background Technology

[0002] A rubber vulcanizing machine is a crucial piece of machinery in the production of rubber products. Through high temperature, high pressure, and chemical reactions, the rubber vulcanizing machine transforms rubber raw materials into rubber products with specific shapes and properties. During the vulcanization process, the rubber raw materials undergo physical changes at high temperatures, and the rubber molecular chains open to form a fluid state. At the same time, chemical reactions continue, and the rubber molecular chains recombine to form new chemical structures, thereby endowing the rubber products with various properties.

[0003] When using existing rubber vulcanizing machines, the mold of the rubber product to be vulcanized needs to be placed in the vulcanizing machine and fixed by the positioning device on the rubber vulcanizing machine to prevent the mold from loosening due to factors such as pressure and temperature during the vulcanization process.

[0004] Utility model patent application number 202222628495.5 discloses a vulcanizing machine with automatic positioning function, including: a mold base plate and an equipment frame; a movable groove, the movable groove being opened at the top of the mold base plate, with two second limiting rods fixedly connected between the two sides of the inner wall of the movable groove; a motor installed on one side of the mold base plate, with a threaded rod fixedly connected to one end of the motor output shaft; and two second placement plates mounted on the outside of the threaded rod via two movable frames. In the above technical solution, the motor drives the threaded rod to rotate, thereby moving the two second placement plates through the two movable frames, thus laterally positioning and clamping the vulcanizing mold. This allows the mold to be automatically clamped during vulcanization, and after positioning, it can effectively avoid displacement caused by movement and clamping, effectively improving the quality of the vulcanized parts.

[0005] However, since the structural design of the mold is adjusted according to the shape and size requirements of the rubber product, the existing technology cannot position and clamp molds of different sizes and shapes when positioning and clamping the mold. The utilization rate of the positioning components is low, which reduces the practicality. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a mold positioning device for a rubber vulcanizing machine.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A mold positioning device for a rubber vulcanizing machine includes a mold base installed on the rubber vulcanizing machine and a positioning unit for positioning and clamping the mold. The positioning unit includes four clamping members respectively disposed on the four sides of the mold base. Each clamping member includes a plurality of positioning heads, a fixing plate, and a plurality of guide rods. The fixing plate is installed on the mold base. The fixing plates of the four clamping members cooperate to form a positioning space. The fixing plate has a plurality of guide screw holes respectively threaded to the plurality of guide rods. The plurality of positioning heads are placed in the positioning space and are respectively connected to the plurality of guide rods. Each positioning head includes an elastic part.

[0009] Further configured, the positioning head also includes a movable chamber corresponding to the elastic part, a spring installed in the movable chamber, a brake plate connected to the spring, and an airbag connected to the brake plate. The brake plate moves within the movable chamber. The elastic part has a resistance chamber and an air guide hole communicating with the resistance chamber. The air guide hole communicates with the airbag.

[0010] A further configuration is provided, wherein a conduit communicating with the airbag is installed inside the air duct.

[0011] A further provision is that a limiting sleeve is installed on the airbag.

[0012] By adopting the above technical solution, the beneficial effects of this utility model are as follows: the mold positioning device can position and clamp molds of different sizes and shapes, improve the utilization rate of the mold positioning device, and enhance its practicality. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0014] Figure 2 This is a magnified structural diagram of point A.

[0015] The components in the diagram are: mold base 01, clamping part 02, positioning head 1, fixing plate 2, guide rod 3, positioning space 4, guide screw hole 5, elastic part 7, movable chamber 8, spring 9, brake plate 10, air bag 11, resistance chamber 12, air duct 13, guide tube 14, and limit sleeve 15. Detailed Implementation

[0016] Reference Figures 1 to 2 The embodiments of this utility model will be further described below.

[0017] A mold positioning device for a rubber vulcanizing machine includes a mold base 01 installed on the rubber vulcanizing machine and a positioning unit for positioning and clamping the mold. The positioning unit includes four clamping members 02 respectively disposed on the four sides of the mold base 01. Each clamping member 02 includes a plurality of positioning heads 1, a fixing plate 2 and a plurality of guide rods 3. The fixing plate 2 is installed on the mold base 01. The fixing plates 2 of the four clamping members 02 cooperate to form a positioning space 4. The fixing plate 2 has a plurality of guide screw holes 5 respectively threadedly connected to the plurality of guide rods 3. The plurality of positioning heads 1 are placed in the positioning space 4 and are respectively connected to the plurality of guide rods 3. The positioning head 1 includes an elastic part 7.

[0018] Working principle: The mold designed according to the shape and size of the rubber product is placed in the positioning space 4. The guide rod 3 is rotated to move the guide rod 3, so that the positioning head 1 on it comes into contact with the mold surface. Then, the four clamping parts 02 position and clamp the mold. According to the size and shape of the mold, the moving distance of the guide rod 3 is changed by rotating the guide rod 3, so that the positioning head 1 on the guide rod 3 keeps in contact with different parts of the mold. This allows the clamping parts 02 to position and clamp molds of different shapes and sizes. When the positioning head 1 comes into contact with the mold surface, the elastic part 7 on the positioning head 1 is squeezed and deformed and comes into contact with the mold surface. This makes it easier for the clamping parts 02 to fix molds of different shapes and sizes better. Finally, the mold positioning device can position and clamp molds of different sizes and shapes, improve the utilization rate of the mold positioning device, and enhance its practicality.

[0019] The positioning head 1 also includes a movable chamber 8 corresponding to the elastic part 7, a spring 9 installed in the movable chamber 8, a brake plate 10 connected to the spring 9, and an airbag 11 connected to the brake plate 10. The brake plate 10 moves in the movable chamber 8. The elastic part 7 has a resistance chamber 12 and an air guide hole 13 communicating with the resistance chamber 12. A conduit 14 communicating with the airbag 11 is installed in the air guide hole 13. A limit sleeve 15 is installed on the airbag 11.

[0020] When the positioning head 1 contacts the mold surface, causing the elastic part 7 to be compressed and deformed, the air in the resistance chamber 12 of the elastic part 7 enters the airbag 11 through the air guide hole 13 and the conduit 14, causing the airbag 11 to expand horizontally and compress the brake plate 10, thereby compressing the spring 9. At this time, the space inside the resistance chamber 12 gradually decreases, and the limiting sleeve 15 prevents the airbag 11 from expanding vertically, which would affect the airbag 11's compression of the brake plate 10. When the spring 9 is compressed to its limit, the space inside the resistance chamber 12 of the elastic part 7 stops decreasing, preventing the elastic part 7 from continuing to deform. This allows the elastic part 7 to better press against the mold. At the same time, keeping the elastic part 7 in contact with the mold surface is beneficial for the positioning head 1 to position molds of different shapes. When the elastic head is not in contact with the mold, it is easy for the spring 9 to return to its original shape, causing the brake plate 10 to compress the airbag 11, which in turn returns to its original shape. The air in the airbag 11 then returns to the resistance chamber 12 through the conduit 14 and the air guide hole 13, allowing the elastic part 7 to quickly return to its original shape after compression, without affecting the next use.

[0021] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mold positioning device for a rubber vulcanizing machine, comprising a mold base (01) mounted on the rubber vulcanizing machine and a positioning unit for positioning and clamping the mold, characterized in that, The positioning unit includes four clamping members (02) respectively disposed on the four sides of the mold base (01). Each clamping member (02) includes several positioning heads (1), a fixing plate (2) and several guide rods (3). The fixing plate (2) is installed on the mold base (01). The fixing plates (2) of the four clamping members (02) cooperate to form a positioning space (4). Several guide screw holes (5) are opened on the fixing plate (2) respectively connected to several guide rods (3). Several positioning heads (1) are placed in the positioning space (4) and connected to several guide rods (3) respectively. The positioning head (1) includes an elastic part (7).

2. The mold positioning device for a rubber vulcanizing machine according to claim 1, characterized in that, The positioning head (1) also includes a movable chamber (8) corresponding to the elastic part (7), a spring (9) installed in the movable chamber (8), a brake plate (10) connected to the spring (9), and an airbag (11) connected to the brake plate (10). The brake plate (10) moves in the movable chamber (8). The elastic part (7) has a resistance chamber (12) and an air guide hole (13) connected to the resistance chamber (12). The air guide hole (13) is connected to the airbag (11).

3. The mold positioning device for a rubber vulcanizing machine according to claim 2, characterized in that, The air duct (13) is equipped with a conduit (14) that communicates with the airbag (11).

4. The mold positioning device for a rubber vulcanizing machine according to claim 3, characterized in that, A limiting sleeve (15) is installed on the airbag (11).

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