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Rubber product double-density one-off injection molding production system and production process thereof

A technology of injection molding and rubber products, applied to hollow objects, other household appliances, tires, etc., can solve the problems of time-consuming, high cost, energy consumption, etc., and achieve the effect of reducing energy consumption, reducing scrap rate, and improving production efficiency

Inactive Publication Date: 2019-02-12
ANHUI GVG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problems of high cost of two sets of injection mechanism equipment in the production of double-density rubber products in the prior art, separate injection and vulcanization, energy consumption, time-consuming, high cost and other problems, the invention provides a double-density one-time injection of rubber products Molding production system and its production process

Method used

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  • Rubber product double-density one-off injection molding production system and production process thereof
  • Rubber product double-density one-off injection molding production system and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The double-density one-time injection molding production system for rubber products of this embodiment, such as figure 1 As shown, it includes an injection machine base 1, a die vulcanization base 5, an injection device 2 and a die vulcanization device 3 respectively fixed on both, and a hollow device 4 beside the die vulcanization base 5. The die The vulcanizing device 3 includes two mold inner cores with the same shape and different specifications. The two inner cores are successively placed into the mold. The injection device 2 injects two plasticized rubber materials with different densities corresponding to different mold inner cores into In the mold of the compression molding vulcanization device 3, the hollow device 4 can pass high-pressure gas into the plasticized rubber material in the mold of the compression molding vulcanization device 3 to form a hollow cavity of high-pressure gas, so that it has the high-pressure conditions required for vulcanization , the ...

Embodiment 2

[0052] The double-density one-time injection molding production system for rubber products in this embodiment has the same basic structure as that in Embodiment 1, except that the injection device 2 includes a feeding hopper 21, an injection cylinder 22, a plasticizing injection screw barrel 23, and a moving cylinder for an injection seat. 24. Pre-injection material cavity 25, continuous foaming machine 26, material switching cylinder 27, injection head 28 and material switching switching valve 29; the feeding hopper 21 communicates with the beginning of the plasticizing injection screw barrel 23, The barrel 23 is fixed on the side of the cylinder barrel of the injection cylinder 22; the plasticizing injection barrel 23 and the discharge port of the continuous foaming machine 26 communicate with the pre-injection chamber 25 through the first feeding pipe 232 and the second feeding pipe 261 respectively. , the material switching conversion valve 29 is connected with the piston r...

Embodiment 3

[0070] The double-density one-time injection molding production system for rubber products of this embodiment has the same basic structure as that of Embodiment 2, and the improvements are as follows: figure 2 As shown, mold inner core one 35 and mold inner core two 36 have the same shape as the sole, but the specifications are different. The hollow device 4 also includes an electric control three-way valve 42, an air heater 43 and a pipe joint 46; the high-pressure air compressor 44 is connected with the electric control three-way valve 42 after being passed into the air heater 43 through the air pipe, and the vacuum exhaust station 41 is connected with the electric control three-way valve 42 through the air pipe, and the high-pressure air pipe 45 and the electric control three-way valve 42 connection, the three are respectively connected with the three passages of the electric control three-way valve 42; the other end of the high-pressure air pipe 45 communicates with the ga...

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Abstract

The invention discloses a rubber product double-density one-off injection molding production system and a production process for the rubber product double-density one-off injection molding productionsystem and belongs to the technical field of rubber product processes. The molding production system comprises an injection machine base, a mold-pressing vulcanizing platform seat, an injection deviceand a mold-pressing vulcanizing device and further comprises a hollowing device beside the mold-pressing vulcanizing platform seat, wherein the injection device and the mold-pressing vulcanizing device are fixed to the injection machine base and the mold-pressing vulcanizing platform seat correspondingly, and the mold-pressing vulcanizing device comprises two mold inner cores of the same shape and different specifications. According to the rubber product double-density one-off injection molding production system and the production process for the rubber product double-density one-off injection molding production system, the injection device injects two plasticized rubber materials with different densities into a mold of the mold-pressing vulcanizing device in sequence corresponding to thedifferent mold inner cores, the hollowing device introduces high-pressure gases in the plasticized rubber materials inside the mold of the mold-pressing vulcanizing device to form the high-pressure gases, the uniform vulcanizing effect inside and outside can be guaranteed, the mold-pressing vulcanizing device performs mold-pressing and vulcanizing on the plasticized rubber materials inside the mold, injecting, hollowing and vulcanizing of double-density rubber products can be finished inside one mold, and transfer of the products between all working procedures is avoided, so that the production cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of rubber products, and in particular relates to a double-density disposable injection molding production system for rubber products and a production process thereof. Background technique [0002] Usually rubber double-density products adopt double-injection molding process, which is injection-molded in two steps (using a double-injection head injection machine). Through the movement of the injection head and the change of the mold core, the product mold is aligned, and the high (low) density rubber is injection-molded first. Materials, and then inject low (high) density rubber materials to obtain double-density rubber products. With a double injection head injection machine, during the movement and alignment of the injection head, the injection gate is easily blocked or the gate is not smooth, resulting in waste products. [0003] The density of the rubber itself is related to its gas-containing foam (foam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/16B29C45/26B29C45/34B29C45/67B29C35/04B29C33/76B29D30/06B29L22/00B29L30/00
CPCB29C45/162B29C33/76B29C35/045B29C45/1628B29C45/2606B29C45/2681B29C45/34B29C45/67B29D30/0606B29D30/0678B29D2030/0607B29D2030/0675B29L2022/00
Inventor 叶孙勇葛九敢唐帆黎广蒋水金赵正王闯路丽珠陶克军雷巍
Owner ANHUI GVG NEW MATERIAL CO LTD
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