Tire mold with temperature measurement function

Abstract

The utility model discloses a tire mould with a temperature measuring function, which comprises a lower mould, a lower cavity is arranged in the lower mould, a temperature measuring hole or a temperature measuring groove communicated with the lower cavity is arranged on the lower mould, and corresponding mould sealing and filling blocks are arranged in the temperature measuring groove and the temperature measuring hole. The mold sealing and filling blocks are in interference fit with the corresponding temperature measuring grooves and the temperature measuring holes, and dismounting structures facilitating dismounting of the mold sealing and filling blocks are arranged on the mold sealing and filling blocks. The temperature measuring groove or the temperature measuring hole is reserved, so that the requirement of temporary grooving in the vulcanization process is avoided, and meanwhile, the safe embedding and accurate temperature measurement of the temperature measuring line can be ensured; the temperature measuring groove or the temperature measuring hole is provided with the mold sealing and filling block, so that the temperature measuring groove or the temperature measuring hole can be sealed conveniently after temperature measurement is completed, the integrity of the mold and the consistency of tire vulcanization are ensured, and the mold sealing and filling block is convenient to take out and place in due to the fact that the mold sealing and filling block is arranged on the mold sealing and filling block; and therefore, the mold can be conveniently switched between a temperature measuring state and a forming state.

Description

Technical Field

[0001] The utility model belongs to the technical field of tire mold forming, and particularly relates to a tire mold with a temperature measuring function. Background Technique

[0002] In the tire manufacturing industry, in order to ensure quality control during the tire vulcanization process, it is usually necessary to measure the temperature inside the tire embryo. Currently, for convenient temperature measurement, grooves or holes for burying temperature measuring wires are provided on the tire mold. Since the shape of the formed tire will be affected after grooving or drilling, the opened grooves or holes will be blocked after the temperature measurement is completed. There are two existing blocking methods. One is to directly block the grooves or holes by welding, and the other is to use a wedge-shaped blocking block to seal them, such as a precise mold-closing temperature measuring tire mold structure disclosed in Chinese Patent CN210011205U.

[0003] When using the first method, it is necessary to continuously groove or drill holes and then block the grooves or holes. This method not only takes time and affects production efficiency, but also damages the mold, affecting the external dimensions and quality of the tire. At the same time, since the temperature measuring grooves are manually opened, it is difficult to guarantee the depth and position accuracy, which easily leads to damage to the temperature measuring wires and differences in the appearance of the tires.

[0004] When using the second method, the grooves or holes are pre-set in the mold and will not be temporarily opened, which can guarantee the position of the grooves or holes and will not damage the mold. However, due to the use of a wedge-shaped block for blocking, in order to ensure the blocking effect, there is an interference fit between the wedge-shaped block and the corresponding groove or hole, and it is inconvenient to take out and bury the temperature measuring wire as a whole. Summary of the Utility Model

[0005] The utility model intends to propose a tire mold with a temperature measuring function, which can not only improve efficiency, reduce damage to the mold, ensure the quality of tire forming, but also facilitate the switching between the temperature measuring state and the forming state of the mold.

[0006] Therefore, the technical solution adopted by the utility model is as follows: A tire mold with a temperature measuring function includes an upper mold and a lower mold. An upper cavity is arranged inside the upper mold, and a lower cavity is arranged inside the lower mold. When the upper mold presses on the lower mold, the upper cavity and the lower cavity form a mold cavity for tire forming. A temperature measuring hole or a temperature measuring groove communicated with the lower cavity is arranged on the lower mold, and the temperature measuring groove and the temperature measuring hole are staggered both vertically and circumferentially. Corresponding mold filling blocks are equipped in both the temperature measuring groove and the temperature measuring hole. There is an interference fit between the mold filling block and the corresponding temperature measuring groove and temperature measuring hole. The mold filling block is arranged on the lower mold through a corresponding fixing structure, and a disassembly structure for facilitating the disassembly of the mold filling block is arranged on the mold filling block.

[0007] As a preferred embodiment of the above solution, the disassembly structure includes a disassembly threaded hole arranged on the mold sealing block.

[0008] Further preferably, the fixing structure comprises at least two fixing threaded holes arranged on the lower mold, bolt through holes for fixing bolts to pass through are arranged at positions corresponding to the fixing threaded holes on the mold sealing block, and countersunk holes are arranged on the bolt through holes.

[0009] Further preferably, the side of the mold sealing block facing the lower cavity is configured as a cavity block matching the mold cavity.

[0010] Further preferably, the temperature measuring hole is connected to a shoulder of the tire in the mold cavity for molding the tire.

[0011] Further preferably, the temperature measuring grooves and the temperature measuring holes are staggered at positions of the grooves for forming the pattern in the mold cavity.

[0012] Beneficial effects of the utility model:

[0013] 1) By reserving a temperature measuring groove or a temperature measuring hole, the need for temporary grooving during the vulcanization process is avoided, while ensuring the safe burial of the temperature measuring line and accurate temperature measurement; a mold sealing block is provided at the temperature measuring groove or the temperature measuring hole to facilitate the sealing of the temperature measuring groove or the temperature measuring hole after the temperature measurement is completed, thereby ensuring the integrity of the mold and the consistency of tire vulcanization.

[0014] 2) A disassembly structure is provided on the mold sealing block to facilitate the removal and insertion of the mold sealing block, thereby facilitating the switching of the mold between the temperature measuring state and the molding state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 For the utility model Figure 1 (Only a temperature measuring chamber is provided).

[0016] Figure 2 Schematic diagram of the mold sealing block equipped with the temperature measuring tank in the utility model Figure 1 .

[0017] Figure 3 Schematic diagram of the mold sealing block equipped with the temperature measuring tank in the utility model Figure 2 .

[0018] Figure 4 The utility model is shown after the temperature measuring device is installed Figure 1 (Only a temperature measuring chamber is provided).

[0019] Figure 5 For the utility model Figure 1 (Only temperature measuring holes are provided).

[0020] Figure 6Schematic diagram of the mold filling block for the temperature measurement hole in the present utility model.

[0021] Figure 7 For Figure 6 side view.

[0022] Figure 8 Schematic diagram of the present utility model after installing the temperature measurement device Figure 1 (only the temperature measurement hole is provided).

[0023] Reference numerals: upper mold - 1, lower mold - 2, temperature measurement hole - 2a, temperature measurement groove - 2b, mold filling block - 3, disassembly threaded hole - 3a, bolt through hole - 3b, counterbore - 3c, cavity block - 3d, temperature measurement wire - 4. Specific implementation mode

[0024] The present utility model will be further described below through embodiments in conjunction with the accompanying drawings:

[0025] As Figures 1-8 shown, a tire mold with a temperature measurement function mainly consists of an upper mold 1, a lower mold 2 and a mold filling block 3. Among them, an upper cavity is provided in the upper mold 1, and a lower cavity is provided in the lower mold 2. When the upper mold 1 presses on the lower mold 2, the upper cavity and the lower cavity form a mold cavity for tire molding. The movement of the upper mold is prior art and will not be elaborated here.

[0026] A temperature measurement hole 2a or a temperature measurement groove 2b communicating with the lower cavity and used for placing the temperature measurement wire 4 is provided on the lower mold 2. The number of the temperature measurement holes 2a or the temperature measurement grooves 2b is set according to needs, and only the temperature measurement holes 2a can be provided, as Figure 5 and Figure 8 shown, or only the temperature measurement grooves 2b can be provided, as Figure 1 and Figure 4 shown, or both can be provided. When both the temperature measurement holes 2a and the temperature measurement grooves 2b are provided, the temperature measurement grooves 2b and the temperature measurement holes 2a need to be staggered both vertically and circumferentially.

[0027] To ensure the molding quality of the tire, after the temperature measurement is completed, the temperature measurement holes 2a or the temperature measurement grooves 2b need to be blocked. Therefore, corresponding mold filling blocks 3 are equipped in both the temperature measurement grooves 2b and the temperature measurement holes 2a. To ensure the blocking effect, an interference fit is provided between the mold filling blocks 3 and the corresponding temperature measurement grooves 2b and temperature measurement holes 2a. At the same time, the mold filling blocks 3 are arranged on the lower mold 2 through corresponding fixing structures to prevent them from loosening due to temperature changes during molding. Preferably, the mold filling blocks are made of high-temperature resistant and high-strength materials.

[0028] In order to facilitate the removal of the mold sealing block, a disassembly structure for facilitating the disassembly of the mold sealing block is provided on the mold sealing block 3. The disassembly structure includes a disassembly threaded hole 3a provided on the mold sealing block 3. During disassembly, the disassembly bolt is screwed into the disassembly threaded hole. When the disassembly bolt contacts the lower mold, the disassembly bolt is continuously screwed to apply a certain force to the lower mold. Then, through the effect of force and reaction force, when the disassembly bolt is screwed, the mold sealing block gradually withdraws from the corresponding temperature measuring groove or temperature measuring hole.

[0029] The fixing structure includes at least two fixing threaded holes provided on the lower mold 2, and bolt through holes 3b for fixing bolts to pass through are provided at positions corresponding to the fixing threaded holes on the mold sealing block 3, and countersunk holes 3c are provided on the bolt through holes 3b. Preferably, the major diameter of the fixing threaded hole is the same as the major diameter of the disassembly threaded hole, so that the disassembly bolt can be replaced by the fixing bolt.

[0030] To ensure that the tire molding is not affected after the mold sealing block 3 is placed, a cavity block 3d matching the mold cavity is set on the side of the mold sealing block 3 facing the lower cavity, and the bolt holes and disassembly threaded holes do not pass through the cavity block.

[0031] Preferably, the temperature measuring groove is arranged at the upper end of the lower mold, and the temperature measuring hole 2a is connected with the shoulder of the tire for molding the tire in the mold cavity. At this time, the mold sealing block is arranged as a T-block.

[0032] In order to facilitate the shaping of the tire pattern and simplify the structure of the mold sealing block, the temperature measuring groove 2b and the temperature measuring hole 2a are staggered at the position of the pattern groove used for shaping the pattern in the mold cavity.

Claims

1. A tire mold with a temperature measurement function, comprising an upper mold (1) and a lower mold (2), wherein an upper cavity is arranged in the upper mold (1), and a lower cavity is arranged in the lower mold (2), and when the upper mold (1) is pressed on the lower mold (2), the upper cavity and the lower cavity form a mold cavity for tire molding, characterized in that: The lower mold (2) is provided with a temperature measuring hole (2a) or a temperature measuring groove (2b) connected to the lower cavity, and the temperature measuring groove (2b) and the temperature measuring hole (2a) are staggered in the vertical direction and in the circumferential direction. The temperature measuring groove (2b) and the temperature measuring hole (2a) are both provided with corresponding mold sealing blocks (3). The mold sealing blocks (3) are interference fit with the corresponding temperature measuring grooves (2b) and the temperature measuring holes (2a). The mold sealing blocks (3) are arranged on the lower mold (2) through corresponding fixing structures, and the mold sealing blocks (3) are provided with a disassembly structure for facilitating the disassembly of the mold sealing blocks.

2. The tire mold with temperature measurement function according to claim 1, characterized in that: The disassembly structure comprises a disassembly threaded hole (3a) arranged on the mold sealing block (3).

3. The tire mold with temperature measurement function according to claim 1, characterized in that: The fixing structure comprises at least two fixing threaded holes arranged on the lower mold (2); bolt through holes (3b) for fixing bolts to pass through are arranged at positions corresponding to the fixing threaded holes on the mold sealing block (3); and countersunk holes (3c) are arranged on the bolt through holes (3b).

4. The tire mold with temperature measurement function according to claim 1, characterized in that: The side of the mold sealing block (3) facing the lower cavity is arranged as a cavity block (3d) matching the mold cavity.

5. The tire mold with temperature measurement function according to claim 1, characterized in that: The temperature measuring hole (2a) is communicated with the shoulder of the tire in the mold cavity for molding the tire.

6. The tire mold with temperature measurement function according to claim 1, characterized in that: The temperature measuring groove (2b) and the temperature measuring hole (2a) are both arranged at positions of pattern grooves used for forming patterns in the mold cavity at different locations.

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