Pattern block and tire mold

Abstract

The utility model relates to the technical field of tire molds, and particularly discloses a pattern block which is characterized in that a guide groove is formed in one end, matched with a side plate, of the pattern block, a sliding aperture block is arranged in the guide groove, the outer side face of the sliding aperture block is flush with the end face of the pattern block, and the sliding aperture block and the side plate are in compression sealing. The number of the sliding aperture block is at least one; the sliding caliber block matched with the side plate is arranged in the pattern block for sealing, so that the processing precision requirement of the end face of the pattern block is reduced, when the sealing effect is reduced, only the sliding caliber block needs to be processed and maintained, the replacement cost is low, the period is short, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tire molds, in particular to a tread block and a tire mold. Background Art

[0002] Tire molds are used to vulcanize and mold various types of tires. They typically consist of a tread ring, a mold sleeve, upper and lower side panels, and other components. These components work together to ensure the tire is produced to the desired specifications and shape.

[0003] The tread ring is made of multiple tread blocks, and the ends of the tread blocks are matched with the upper and lower side plates. At present, the sealing between the tread blocks and the upper and lower side plates mainly relies on the close fit of the metal end faces, such as the tread block and tire mold disclosed in patent CN104943027B. Figure 1 As shown, the tread block body 1 and the right side plate (not marked in the figure) are sealed by the mating of metal surfaces. However, after long-term use, the tread block's mating diameter will wear, the mating surface precision will decrease, and the gap will increase, which will cause glue leakage during vulcanization. If the glue leakage problem is serious, the entire tread block must be replaced, which is very costly. Utility Model Content

[0004] The utility model is aimed at the above-mentioned deficiencies in the prior art and provides a tread block and a tire mold. A sliding aperture block cooperating with the side plate is arranged in the tread block for sealing. This not only reduces the machining accuracy requirements for the end face of the tread block, but also, when the sealing effect decreases, only the sliding aperture block needs to be machined. The maintenance and replacement costs are low and the cycle is short, thereby improving production efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A pattern block, wherein a guide groove is provided at one end of the pattern block that cooperates with the side plate, a sliding caliber block is provided in the guide groove, the outer side surface of the sliding caliber block is flush with the end surface of the pattern block, the sliding caliber blocks are compressed and sealed with the side plate, and the number of the sliding caliber blocks is at least one.

[0007] Preferably, a first mounting hole is provided in the pattern block, a bolt is threadedly engaged with the first mounting hole, and a threaded hole engaged with the bolt is provided on the side wall of the sliding aperture block.

[0008] Preferably, a second mounting hole is provided in the pattern block, and a positioning pin for positioning the sliding aperture block is provided in the second mounting hole.

[0009] Preferably, the bolts and positioning pins are arranged alternately.

[0010] Preferably, a positioning hole cooperating with a positioning pin is provided on the side wall of the sliding aperture block.

[0011] Preferably, a groove for installing a sealing ring is provided at the end of the sliding aperture block, and the depth of the groove is smaller than the diameter of the sealing ring.

[0012] Preferably, the sliding aperture block is made of steel.

[0013] Preferably, the sealing ring is made of a high-temperature resistant material such as silicone rubber or fluororubber.

[0014] A tire mold, comprising a tread block.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model sets a sliding aperture block in the pattern block to cooperate with the side plate for sealing, which not only reduces the processing accuracy requirement of the pattern block end face, but also when the sealing effect decreases, only the sliding aperture block needs to be processed, which is more convenient for maintenance and replacement, with low cost and short cycle, and improved production efficiency.

[0017] The utility model adds a sealing ring on the sliding aperture block, realizes secondary sealing through the sealing ring, improves the sealing effect, and effectively avoids the problem of rubber leakage during vulcanization; at the same time, it also has a certain buffering effect, reducing the impact and wear at the aperture of the pattern block.

[0018] 3. Under the action of the positioning pin and the bolt, the sliding aperture block of the utility model improves the installation accuracy and adjustment convenience of the sliding aperture block, and the adjustment is simple and quick.

[0019] 4. The sliding caliber block of the utility model is made of steel, which is more wear-resistant than the aluminum pattern block, and after wear, only the sliding caliber block needs to be replaced, saving time and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the vertical cross-section of the pattern block Figure 1 ;

[0021] Figure 2 Schematic diagram of the vertical cross-section of the pattern block Figure 2 ;

[0022] Figure 3 Schematic diagram of the cross-sectional structure of the tread block;

[0023] Figure 4 It is a schematic diagram of the structure of the pattern block and the side panel;

[0024] In the figure: 1-pattern block; 101-first mounting hole; 102-guide groove; 103-second mounting hole; 2-bolt; 3-sliding diameter block; 301-threaded hole; 302-slot; 303-positioning hole; 4-sealing ring; 5-positioning pin; 6-side plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figure 1 As shown, a pattern block 1 is provided with a guide groove 102 at one end of the pattern block 1 that cooperates with the side plate 6. The guide groove 102 is located at the inner diameter of the pattern block 1. A sliding diameter block 3 is provided in the guide groove 102. The sliding diameter block 3 is tightly matched with the guide groove 102 and can slide at the same time. The outer side surface of the sliding diameter block 3 is flush with the end surface of the pattern block 1. The sliding diameter block 3 and the side plate 6 are compressed and sealed, that is, the sealing is achieved by the compression force between the sliding diameter block 3 and the side plate 6; when the sliding diameter block 3 is worn and the seal is not tight, the sliding diameter block 3 can be repaired or replaced, which reduces the cost.

[0027] The number of the sliding aperture block 3 is at least one. When two or more sliding aperture blocks are provided, adjacent sliding aperture blocks 3 are tightly docked and matched. Each sliding aperture block 3 can be adjusted, and the adjustment is more flexible.

[0028] The sliding aperture block 3 is located at the aperture of the pattern block 1. The tight fit between the sliding aperture block 3 and the side plate 6 can achieve the first seal. The sliding aperture block 3 is made of steel, which is more wear-resistant than the aluminum pattern block 1. After wear, only the sliding aperture block 3 needs to be replaced, saving time and cost.

[0029] To further enhance the sealing effect, a sealing ring 4 is mounted at the end of the sliding block 3, mating with the side plate 6. The sliding block 3 presses the sealing ring 4 against the side plate 6. This pressure, combined with the sliding block 3, creates a secondary seal. Even if the interactive block leaks, the sealing ring prevents any overflow. If the sealing ring wears, it only needs to be replaced. The sealing ring 4 also acts as a buffer, reducing impact and wear at the tread block's aperture.

[0030] The sealing ring 4 is made of silicone rubber, fluororubber or other high-temperature resistant materials.

[0031] In order to achieve the installation positioning and press fit of the sliding caliber block 3, in this application, as shown in FIG. Figure 1 、 Figure 2 As shown, a first mounting hole 101 and a second mounting hole 103 are provided in the pattern block 1. The first mounting hole 101 is threaded with a bolt 2 to pull the sliding caliber block 3. The second mounting hole 103 is provided with a positioning pin 5 for positioning the sliding caliber block 3 to position the installation of the sliding caliber block 3 to prevent the sliding caliber block 3 from tilting after installation. Figure 3 As shown, the bolts 2 and the positioning pins 5 are arranged alternately.

[0032] The positioning pin 5 and the second mounting hole 103 may be threadedly engaged, and the position of the sliding aperture block 3 installed in the guide groove 102 can be positioned by adjusting the positioning pin 5 .

[0033] A threaded hole 301 that cooperates with the bolt 2 is provided on the side wall of the sliding aperture block 3. The cooperation direction of the bolt 2, the first mounting hole 101 and the threaded hole 301 is opposite, that is: when the bolt 2 is pushed forward (toward the sliding aperture block 3), the bolt 2 just withdraws from the threaded hole 301, thereby pushing the sliding aperture block 3 to move toward the side plate 6. When the bolt 2 withdraws backward (away from the sliding aperture block 3), the bolt 2 is screwed into the bolt 2 hole, thereby pulling the sliding aperture block 3 to move backward.

[0034] A positioning hole 303 cooperating with the positioning pin 5 is provided on the side wall of the sliding aperture block 3 , which can improve the stability of the sliding aperture block 3 .

[0035] The end of the sliding aperture block 3 is provided with a slot 302 for installing the sealing ring 4. The slot 302 is a dovetail groove, which can fix the sealing ring 4. The depth of the slot 302 is smaller than the diameter of the sealing ring 4, so that the sealing ring 4 is pressed against the side plate 6.

[0036] like Figure 4 As shown, a tire mold includes a side plate 6 and the above-mentioned pattern block 1. During operation, the sliding diameter block 3 is flush with the end face of the pattern block 1. After the pattern block 1 and the side plate 6 are matched, the connection is sealed by the sliding diameter block 3 and the sealing ring 4. When wear occurs, the sliding diameter block 3 can be adjusted and the outer side surface of the sliding diameter block 3 can be processed and repaired or the sliding diameter block 3 can be directly replaced. At the same time, the sealing ring 4 is replaced, which has low maintenance costs and short cycles.

[0037] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A tread block, characterized in that: A guide groove is provided at one end of the pattern block that cooperates with the side plate, and a sliding caliber block is provided in the guide groove. The outer side surface of the sliding caliber block is flush with the end surface of the pattern block. The sliding caliber blocks are compressed and sealed with the side plate, and the number of the sliding caliber blocks is at least one.

2. The tread block according to claim 1, characterized in that: A first mounting hole is provided in the pattern block, a bolt is threadedly fitted in the first mounting hole, and a threaded hole fitted with the bolt is provided on the side wall of the sliding aperture block.

3. The tread block according to claim 2, characterized in that: A second mounting hole is provided in the pattern block, and a positioning pin for positioning the sliding aperture block is provided in the second mounting hole.

4. The tread block according to claim 3, characterized in that: The bolts and the positioning pins are arranged alternately.

5. The tread block according to claim 3, characterized in that: A positioning hole that cooperates with the positioning pin is provided on the side wall of the sliding aperture block.

6. The tread block according to claim 1, characterized in that: A sealing ring matched with the side plate is installed at the end of the sliding caliber block, and the sliding caliber block presses the sealing ring onto the side plate.

7. The tread block according to claim 1, characterized in that: The end of the sliding aperture block is provided with a slot for installing a sealing ring, and the depth of the slot is smaller than the diameter of the sealing ring.

8. The tread block according to claim 1, characterized in that: The sliding aperture block is made of steel.

9. The tread block according to claim 6, characterized in that: The sealing ring is made of high-temperature resistant material such as silicone rubber or fluororubber.

10. A tire mold, characterized in that: The invention comprises a pattern block as described in any one of claims 1 to 8.

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