Sole ejection device capable of recycling EVA raw materials and ejection process

A raw material and process technology, which is applied in the field of shoe sole injection device and injection process, can solve the problems such as the inability to recycle EVA raw materials, and achieve the effects of being beneficial to recycling, improving flame retardancy, and avoiding manual mold taking

Pending Publication Date: 2022-01-14
中山精美鞋业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a shoe sole injection device and an injection process that can recycle EVA raw materials, which solves the problem that the EVA raw materials cannot be recycled after the shoe soles are discarded.

Method used

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  • Sole ejection device capable of recycling EVA raw materials and ejection process
  • Sole ejection device capable of recycling EVA raw materials and ejection process
  • Sole ejection device capable of recycling EVA raw materials and ejection process

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Such as Figure 1-Figure 4 Shown, the embodiment of the present invention provides the sole injection device of recyclable EVA raw material, comprises workbench 7, the first injection machine 3 and the second injection machine 4, and the top two ends of workbench 7 are respectively connected with the first injection machine 3 and the second injection machine 4. The bottom of the second injection machine 4 and the middle end of the top of the workbench 7 are fixedly connected with the work frame 5, the top middle of the work frame 5 is fixedly connected with the third cylinder 6, and the output end of the third cylinder 6 is fixedly connected with the gripper 14. The clamper 14 can move up and down through the third cylinder 6. The clamper 14 can clamp the semi-finished EVA sole, and place it between the left mold 9 and the right mold 10. After the sole pops up, pass through the third cylinder 6 The gripper 14 is moved downwards so that the soles can be completely droppe...

Embodiment 2

[0039] The embodiment of the present invention provides the injection process of the sole injection device of recyclable EVA raw material, comprising the following steps: clamp the EVA sole semi-finished product by the clamper 14, move the clamper 14 downward by the third cylinder 6, and the clamper 14 Place the EVA sole semi-finished product between the left mold 9 and the right mold 10;

[0040] The first cylinder 12 can drive the left mold 9 to move horizontally, the second cylinder 11 can make the right mold 10 move horizontally, and the left mold 9 and the right mold 10 are combined by the first cylinder 12 and the second cylinder 11, and the left mold 9 and The right mold 10 can clamp the EVA sole semi-finished product;

[0041] Add the shoe sole material in the first injection machine 3 and the second injection machine 4 respectively, the shoe sole material is injected into the left mold 9 by the first injection machine 3, and the shoe sole material is injected into the...

Embodiment 3

[0044] The embodiment of the present invention provides the injection process of the sole injection device of recyclable EVA raw material, comprising the following steps:

[0045] Take the following raw materials in parts by weight: 40-50 parts of ethylene-vinyl acetate copolymer, 1-2 parts of calcium stearate, 1-2 parts of zinc stearate, 3-5 parts of foaming agent, 1-2 parts of crosslinking agent 3 parts, 2-4 parts of catalyst, 1-3 parts of light stabilizer;

[0046] Pre-mix the above raw materials in the mixer for 5-10 minutes, fully mix and stir with the internal mixer, banbury the tablets, add sulfur and foam, and the foamed EVA sheets must be fully cooled and shrunk, and the skin should be removed with a peeler , cut strips by a strip cutter, and the length of the cut strips is greater than the length of the left mold 9 or the right mold 10 to obtain a semi-finished EVA shoe sole.

[0047] Take the following raw materials in parts by weight: 15-30 parts of polyurethane, ...

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PUM

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Abstract

The invention provides a sole ejection device capable of recycling EVA raw materials and an ejection process, and relates to the field of shoe production equipment. The sole ejection device capable of recycling the EVA raw materials comprises a working table, a first ejection machine and a second ejection machine; guide rods are fixedly connected to the four corners of the middle of the inner side of a working frame; a left mold and a right mold are slidably connected to the outer sides of the guide rods; a first air cylinder and a second air cylinder are fixedly connected to the middles of the two outer side walls of the working frame correspondingly; and the middle of the left mold and the middle of the right mold are both slidably connected with discharging rods. A sole capable of recycling the EVA raw materials is produced by wrapping an EVA sole semi-finished product with a sole raw material, the sole can be prevented from cracking through injection molding processing, the wear resistance, aging resistance and flame retardance of the sole are improved, the sole can be detached after being abandoned, the EVA raw materials can be conveniently recycled, recycling of resources is facilitated, and energy conservation and environmental protection are achieved.

Description

technical field [0001] The invention relates to the field of footwear production equipment, in particular to a shoe sole injection device and an injection process with recyclable EVA raw materials. Background technique [0002] EVA is formed by the copolymerization of ethylene and acetic acid. The Chinese chemical name is: ethylene-vinyl acetate copolymer (ethylene-vinyl acetate copolymer). EVA has a wide range of applications. The annual market consumption in my country is constantly increasing, especially in In the shoemaking industry, it is used in the soles and interior materials of middle and high-end travel shoes, mountaineering shoes, slippers and sandals. Injection molding is a molding method using a mold. Materials such as synthetic resin (plastic) are heated and melted, and the material is injected into the mold and cooled to form the target shape. Since this process is similar to the process of injecting liquid with a syringe, it is called "Injection molding", the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/13B29C45/14B29C45/67B29C45/42C08L23/08C08K5/098C08L75/04C08L63/10C08L23/28C08K3/36C08J9/04B29K23/00B29L31/50
CPCB29C45/13B29C45/14008B29C45/0001B29C45/67B29C45/4225C08J9/04C08J9/0023C08J9/0095C08J9/0071C08J9/0061B29K2023/083B29L2031/504C08J2323/08C08K5/098C08J2363/10C08J2323/28C08J2375/04C08K3/36C08K2201/011
Inventor 张聪渊张桓章
Owner 中山精美鞋业有限公司
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