Mould for producing tear-resistant cushion belt

Abstract

The utility model provides a mold for producing an anti-tearing cushion belt, and relates to the technical field of molds, and the mold comprises a lower mold and an upper mold. A square limiting piece is arranged between the lower die and the upper die, a die is arranged on the lower die, a cooling groove is formed in the die, and the portion, located at the cooling groove, of the die is communicated with a liquid inlet pipe and a liquid outlet pipe. And the cooling time is shortened, so that the production efficiency of the tear-resistant cushion belt is improved. And through the arrangement of the square limiting piece, it can be guaranteed that the upper die accurately covers the lower die, the upper die is prevented from deviating during covering, and the production precision of the tear-resistant cushion belt is improved.

Description

Technical Field

[0001] This application relates to the field of molds, and more specifically, to a mold for producing tear-resistant pad tape. Background Technology

[0002] Also known as a liner or pressure strip. It is installed between the inner tube and the rim, thicker in the middle and gradually thinning from the inside out at both edges. The outer surface of the liner has a center line for alignment during installation. There is also a hole on the center line for the inner tube valve to pass through. The liner does not require high physical and mechanical properties of the rubber compound, but it should have good aging resistance. Tubeless tires fixed to deep-set rims and ultra-low-pressure tires fixed to specially structured rims do not require a liner due to their tight fit.

[0003] In tear-resistant inner tubes, the "tear-resistant" characteristic emphasizes their high strength and durability, enabling them to withstand significant tensile and tearing forces, thus more effectively protecting the inner tube from damage. Tear-resistant inner tubes utilize special materials or reinforced structures to achieve their tear resistance, thereby extending tire lifespan.

[0004] In the production of tear-resistant rubber pads, molds are generally used. For example, a novel rubber pad mold disclosed in Chinese patent application No. 202420437366.4 reduces the difficulty of assembly by setting up upper and lower molds, and improves the assembly accuracy by using guide rods and sliding sleeves, thereby improving the product accuracy. The positioning posts and protruding edges increase the width of the middle part, making the rubber pad product fit the steel rim better and protecting the inner tube. However, after injection molding, the rubber needs to be cooled, which can only be done naturally, thus prolonging the cooling time and reducing the production efficiency of tear-resistant rubber pads. Summary of the Invention

[0005] To overcome the shortcomings of the existing system, this application provides a mold for producing tear-resistant pad tape, which can solve the problem that when the rubber is injected into the mold, it needs to be cooled, but can only be cooled naturally, which prolongs the cooling time and reduces the production efficiency of tear-resistant pad tape.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is: a mold for producing tear-resistant pad tape, including a lower mold and an upper mold.

[0007] A square limiting member is provided between the lower mold and the upper mold. A mold is provided on the lower mold. A cooling groove is opened inside the mold. The mold is connected to the liquid inlet pipe and the liquid outlet pipe at the location of the cooling groove.

[0008] In one specific implementation, the square limiting member includes a square slot and a square insert. The square slot is disposed at the four corners of the mold, and the square insert is disposed at the four corners of the lower surface of the upper mold. Each square insert is detachably inserted into the corresponding square slot.

[0009] In one specific implementation, an anti-slip pad is attached to the bottom of each of the square inserts.

[0010] In one specific implementation, the mold is provided with several buffer plates at equal intervals inside the cooling tank.

[0011] In one specific implementation, each of the buffer plates is provided with a plurality of flow channels.

[0012] In one specific implementation, the square slot is embedded inside the mold, and the top of the square slot is flush with the upper surface of the mold, and the top of the square insert is embedded inside the upper mold.

[0013] In one specific implementation, a first valve is provided on the inlet pipe, and a second valve is provided on the outlet pipe.

[0014] In one specific implementation, the upper mold is provided with an injection port.

[0015] The advantages of the embodiments of this application are:

[0016] 1. By setting cooling grooves inside the mold, the anti-tear pads inside the mold can be cooled quickly, reducing the cooling time and thus improving the production efficiency of the anti-tear pads.

[0017] 2. The square limiting component ensures that the upper mold accurately covers the lower mold, preventing the upper mold from shifting during the covering process and improving the precision of the anti-tear pad production. Attached Figure Description

[0018] Figure 1 A schematic diagram of the mold structure for producing tear-resistant pad tape provided in this application embodiment;

[0019] Figure 2 An exploded view of the mold for producing tear-resistant pads provided in this application embodiment;

[0020] Figure 3 A schematic diagram of the mold structure provided for an embodiment of this application;

[0021] Figure 4 A schematic diagram of the cross-sectional structure of the mold provided for an embodiment of this application;

[0022] Figure 5 A schematic diagram of the square limiting member structure provided in the embodiments of this application;

[0023] Figure 6 Provided for the implementation of this application Figure 4 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1-lower mold; 2-upper mold; 21-injection port; 3-mold; 31-cooling tank; 4-square limiting component; 41-square slot; 42-square insert; 5-anti-slip pad; 6-buffer plate; 61-flow channel; 7-inlet pipe; 8-outlet pipe. Detailed Implementation

[0025] The technical solution in this application is to address the problem that after the rubber is injected into the mold, it needs to be cooled, but can only be cooled naturally, which prolongs the cooling time and reduces the production efficiency of tear-resistant pads. The overall idea is as follows:

[0026] Please see Figures 1-6 A mold for producing tear-resistant pad tape includes a lower mold 1 and an upper mold 2.

[0027] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A square limiting member 4 is provided between the lower mold 1 and the upper mold 2. A mold 3 is provided on the lower mold 1, and a cooling groove 31 is opened inside the mold 3. The mold 3 is connected to the cooling groove 31 by an inlet pipe 7 and an outlet pipe 8. A first valve is provided on the inlet pipe 7, and a second valve is provided on the outlet pipe 8. The upper mold 2 is covered onto the lower mold 1 by the square limiting member 4. When the raw material of the tear-resistant pad in a molten state enters the mold 3, the first valve is activated, allowing the coolant to enter the cooling groove 31 through the inlet pipe 7. Excess coolant is discharged through the outlet pipe 8, thereby achieving the function of cooling and shaping. By setting the cooling groove 31 inside the mold 3, the tear-resistant pad inside the mold 3 can be cooled quickly, reducing the cooling time and thus improving the production efficiency of the tear-resistant pad. The square limiting member 4 ensures that the upper mold 2 is accurately covered onto the lower mold 1, preventing the upper mold 2 from shifting during the covering process and improving the precision of the tear-resistant pad production.

[0028] The square limiting component 4 includes square slots 41 and square inserts 42. The square slots 41 are located at the four corners of the mold 3, and the square inserts 42 are located at the four corners of the lower surface of the upper mold 2. Each square insert 42 is detachably inserted into the corresponding square slot 41. An anti-slip pad 5 is attached to the bottom of each square insert 42. The square slots 41 are embedded inside the mold 3, with their tops flush with the upper surface of the mold 3. The tops of the square inserts 42 are embedded inside the upper mold 2. When the upper mold 2 is closed, each square insert 42 is inserted into its corresponding square slot 41, thereby achieving mold closing between the lower mold 1 and the upper mold 2. The cooperation between the square inserts 42 and the square slots 41, being square in shape, increases the stability between the lower mold 1 and the upper mold 2, preventing the upper mold 2 from shifting during mold closing, thus improving the precision of the anti-tear pad production.

[0029] The mold 3 has several buffer plates 6 evenly spaced inside the cooling tank 31. Each buffer plate 6 has several flow channels 61. The buffer plates 6 are designed to buffer the coolant entering the cooling tank 31, preventing the coolant from flowing too quickly and causing fluctuations in the molten anti-tear pad, thus affecting the production quality of the anti-tear pad.

[0030] The upper mold 2 is provided with an injection port 21. Molten material is injected into the mold 3 through the injection port 21.

[0031] In this application, the upper mold 2 is closed onto the lower mold 1 by the square limiting member 4. When the raw material of the molten tear-resistant pad enters the mold 3, the first valve is activated, allowing coolant to enter the cooling tank 31 through the inlet pipe 7. Excess coolant is discharged through the outlet pipe 8, thereby achieving the function of cooling and shaping. By setting the cooling tank 31 inside the mold 3, the tear-resistant pad inside the mold 3 can be cooled quickly, reducing the cooling time and thus improving the production efficiency of the tear-resistant pad. The square limiting member 4 ensures that the upper mold 2 is accurately closed onto the lower mold 1, preventing the upper mold 2 from shifting during closing and improving the precision of the tear-resistant pad production.

[0032] In summary, this application, by providing a cooling groove 31 inside the mold 3, enables rapid cooling of the anti-tear pad inside the mold 3, reducing cooling time and thus improving the production efficiency of the anti-tear pad. The square limiting member 4 ensures that the upper mold 2 accurately covers the lower mold 1, preventing the upper mold 2 from shifting during closing and improving the precision of the anti-tear pad production.

[0033] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A mold for producing tear-resistant pad tape, characterized in that, include The lower mold (1) and the upper mold (2) are provided with a square limiting member (4) between the lower mold (1) and the upper mold (2). A mold (3) is provided on the lower mold (1). A cooling groove (31) is opened inside the mold (3). The mold (3) is connected to the cooling groove (31) by an inlet pipe (7) and an outlet pipe (8).

2. The mold for producing tear-resistant pad tape as described in claim 1, characterized in that, The square limiting member (4) includes a square slot (41) and a square insert (42). The square slot (41) is located at the four corners of the mold (3), and the square insert (42) is located at the four corners of the lower surface of the upper mold (2). Each square insert (42) can be detachably inserted into the corresponding square slot (41).

3. The mold for producing tear-resistant pad tape as described in claim 2, characterized in that, Each of the square inserts (42) has an anti-slip pad (5) attached to its bottom.

4. The mold for producing tear-resistant pad tape as described in claim 1, characterized in that, The mold (3) is provided with several buffer plates (6) arranged at equal intervals inside the cooling tank (31).

5. The mold for producing tear-resistant pad tape as described in claim 4, characterized in that, Each of the buffer plates (6) is provided with a number of flow channels (61).

6. The mold for producing tear-resistant pad tape as described in claim 2, characterized in that, The square slot (41) is embedded inside the mold (3), and the top of the square slot (41) is flush with the upper surface of the mold (3). The top of the square insert (42) is embedded inside the upper mold (2).

7. The mold for producing tear-resistant pad tape as described in claim 1, characterized in that, The inlet pipe (7) is equipped with a first valve, and the outlet pipe (8) is equipped with a second valve.

8. The mold for producing tear-resistant pad tape as described in claim 7, characterized in that, The upper mold (2) is provided with an injection port (21).

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