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Aeration free multi hole hollow type extrusion mould

A technology of hollow tires and extrusion molds, which is applied to tires, household appliances, and other household appliances. It can solve the problems of costly materials, complicated installation, and poor elasticity, and achieve the effects of convenient manufacture, wide application, and simple structure.

Active Publication Date: 2005-10-26
JIANGSU RISINGSUN TIRE
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AI Technical Summary

Problems solved by technology

[0002] At present, tires can generally be divided into three types. One is composed of an inner tube and an outer tube, and the inner tube is inflated. This is the most common tire structure. Manufactured by two different processes; the second type of tire is a single-hole tubeless tire, such as a tubeless tire for a car, which must be inflated when used, and cannot be used after being punctured. It must be replaced or repaired before it can be used. , its installation is also more complicated, requires special equipment, and has higher requirements for the wheel hub; the third type is solid tires, although this tire will not be punctured, but its elasticity is poor during use, and it is very expensive. Therefore it is urgent to produce a kind of non-inflatable porous hollow tire that is not afraid of being punctured, saves materials, and has good elasticity. The key is that there is no suitable rubber extrusion die for use.

Method used

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  • Aeration free multi hole hollow type extrusion mould
  • Aeration free multi hole hollow type extrusion mould

Examples

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Embodiment 1

[0020] Such as figure 1 , 2 shown.

[0021] A non-inflatable porous hollow tire extrusion die, which is only composed of two parts: a mold frame 1 and a mold core 2. The mold frame 1 is provided with a feed through hole 3, and the mold core 2 is provided with the rubber to pass through to form the required The discharge hole 4 of the hollow hole, in order to ensure the molding effect, the height of the discharge hole 4 should be greater than or equal to 10 mm, one end of the mold frame 1 is connected with the feeding device of the extruder, and the other end is connected with the mold core 2; The side where the core 2 is connected to the mold frame 1 is provided with a boss 201 (the boss 201 can also be omitted during specific implementation, that is, the side where the mold core 2 is connected to the mold frame 1 is a plane), and the boss 201 is inserted into the mold In the feeding through hole 3 provided inside the frame 1, one end of the feeding through hole 3 communicat...

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Abstract

A squeezing die for preparing the porous hollow tyre without inflaction is composed of a moulding core and a mould frame connected between extruder and moulding core. Said moulding core has a material outlet with several moulding blocks whose shape is equal to that of the hollow cavities of tyre.

Description

technical field [0001] The invention relates to a rubber extrusion molding die, in particular to an inflation-free porous hollow tire extrusion die. Background technique [0002] At present, tires can generally be divided into three types. One is composed of an inner tube and an outer tube, and the inner tube is inflated. This is the most common tire structure. Manufactured by two different processes; the second type of tire is a single-hole tubeless tire, such as a tubeless tire for a car, which must be inflated when used, and cannot be used after being punctured. It must be replaced or repaired before it can be used. , its installation is also more complicated, requires special equipment, and has higher requirements for the wheel hub; the third type is solid tires, although this tire will not be punctured, but its elasticity is poor during use, and it is very expensive. Therefore produce a kind of non-inflatable porous hollow tire that is not afraid of being punctured, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/11B29C48/30B29C48/32
CPCB29K2021/00B29L2030/006B29C47/0028B29D30/02B29C48/11
Inventor 王明江
Owner JIANGSU RISINGSUN TIRE
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