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In-mold foaming forming system and technology for rubber double-density product

A foam molding and double-density technology, which is applied in the in-mold foam molding system of rubber double-density products and its technology field, can solve the problems of large equipment investment, cumbersome process, and high cost, so as to reduce energy consumption, improve production efficiency, The effect of reducing the scrap rate

Pending Publication Date: 2019-02-12
安徽世界村智能装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problems in the prior art that the molding, foaming and vulcanization of double-density rubber products are carried out separately, the process is cumbersome, the equipment investment is large, the energy consumption, time-consuming and high cost are high, the invention provides a rubber double-density product in-mold foaming Foam forming system and its process

Method used

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  • In-mold foaming forming system and technology for rubber double-density product
  • In-mold foaming forming system and technology for rubber double-density product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The in-mold foam molding system of the rubber double-density product of the present embodiment, such as figure 1 As shown, it includes a mold exhaust and hollow inflation mechanism 4, and also includes an injection machine base 1, a foaming and vulcanization molding pedestal 5, and an injection device 2 and a foaming and vulcanization molding device 3 respectively fixed on the two. The device 2 communicates with the mold of the foaming and vulcanization molding device 3; the foaming and vulcanization molding device 3 foams and vulcanizes the outer layer of high-density rubber and the inner layer of foamed rubber added sequentially in the mold. Such as figure 2 As shown, the mold exhaust and hollow inflation mechanism 4 includes a support 49, a cylinder 41, an oil cylinder block 44 and a hydraulic station 46; the support 49 is an annular stand with a through hole in the middle, and the cylinder 41 is fixed on On the ring-shaped table, the cylinder block 44 is fixed on ...

Embodiment 2

[0049] The in-mold foam molding system for rubber double-density products of this embodiment has the same basic structure as that of Embodiment 1, and the improvements are as follows: figure 1 As shown, the injection device 2 includes a feeding hopper 21, an injection cylinder 22, a plasticizing injection screw barrel 23, a plasticizing heater 24, an injection nozzle control cylinder 27, an injection head 28 and an injection seat moving cylinder 29; The starting ends of the plasticizing injection screw barrel 23 are connected, and the starting end of the plasticizing injection screw barrel 23 is inserted into the cylinder barrel of the injection cylinder 22, and is pressed against the injection piston 221 in the injection cylinder 22; the plasticizing injection screw barrel 23 has a built-in plasticizer Injection screw 231, at the end of plasticizing injection screw 231, a pre-stored plasticizing material cavity 25 is reserved; the pre-stored plasticizing material cavity 25 con...

Embodiment 3

[0063] The basic structure of the in-mold foam molding system for rubber double-density products of this embodiment is the same as that of Embodiment 2, and the improvements are as follows:

[0064] The foaming and vulcanization molding device 3 also includes a mold clamping upper seat 331 and a mold clamping lower seat 361, and the upper mold half 33 and the lower half mold 36 are respectively supported by the mold clamping upper seat 331 and the mold clamping lower seat 361 to improve injection, foaming and vulcanization. , the stability of the whole system. The outer arm of the cylinder 41 is surrounded by a fixed cylinder heater 42, and the bottom side of the cylinder 41 is provided with a cylinder air discharge hole 43; It can be in the heating stage, and the exhaust gas can be heated slightly to meet the requirements. During the inflation process, the inner cavity of the product is in a sealed state. After the cylinder is filled with gas, it is in a pressure-holding stat...

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Abstract

The invention discloses an in-mold foaming forming system and technology for a rubber double-density product, and belongs to the technical field of rubber product technologies. The system comprises amold exhaust and hollow inflation mechanism, and further comprises an injection machine base, a foaming and vulcanization molding pedestal, an injection device and a foaming and vulcanization moldingdevice, wherein the injection device and the foaming and vulcanization molding device are fixed to the injection machine base and the foaming and vulcanization molding pedestal, wherein the injectiondevice is communicated with a mold of the foaming and vulcanization molding device correspondingly; the mold exhaust and hollow inflation mechanism comprises a support, an air cylinder, an oil cylinder body and a hydraulic station; the support is an annular rack with a through hole in the middle; the air cylinder is fixed to an annular table board of the support; the oil cylinder body is fixed tothe bottom of the annular table board of the support; the air cylinder and the oil cylinder body are internally connected with a cylinder piston and an oil cylinder piston of a piston rod correspondingly; and the top of the air cylinder communicates with an inner cavity of a mold of the foaming and vulcanization molding device through an air pipe. According to the system and the technology, injection, foaming and vulcanization of the rubber product can be completed in one mold, the circulation of the product in each process is avoided, and therefore the production cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of rubber products, and in particular relates to an in-mold foaming molding system for rubber double-density products and its technology. Background technique [0002] In general, substances that make rubber and other polymer materials porous can be used as foaming agents. Physical foaming is a common rubber foaming process. The principle is to dissolve the foaming agent in the high polymer. When the pressure of the system decreases or rises steadily, it turns into a gas to make the high polymer volume expand and boil and foam. The special equipment for foaming (continuous foaming machine) has very strict requirements for foaming equipment, which is extremely inconvenient to use and increases the cost of equipment. [0003] The solid rubber physical foaming production process is that the foaming agent decomposes under high temperature and high pressure to release gas, which is surrounded by rubber to form c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C44/34B29C44/42B29C44/58
CPCB29C44/3415B29C44/421B29C44/58B29C44/588
Inventor 黎广叶孙勇葛九敢赵正唐帆何国柱黄晓丰蒋水金王闯方元
Owner 安徽世界村智能装备有限公司
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