Manufacturing process of middle sole
The invention discloses a manufacturing process of a middle sole. The manufacturing process comprises the following steps: (S1) manufacturing an EVA (Ethylene-Vinyl Acetate) layer of the middle sole,injecting EVA materials into a mold cavity of an injection mold by an injection process, and after co...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a manufacturing process of a middle sole. The manufacturing process comprises the following steps: (S1) manufacturing an EVA (Ethylene-Vinyl Acetate) layer of the middle sole,injecting EVA materials into a mold cavity of an injection mold by an injection process, and after cooling and molding, leading the EVA materials to form an EVA layer of the middle sole; (S3) manufacturing a TPR (Thermoplastic Rubber) layer of the middle sole, injecting a TPR material into a mold cavity of an injection mold provided with a PU layer by the injection process, after cooling and molding, leading the TPR materials to form a TPR layer of the middle sole; (S4) arranging the cushioning balls prepared in the step (S2) on the inner wall of the bottom end of the EVA layer according to requirement, and adhering the TPR layer prepared in the step (S3) to the EVA layer; (S5) removing wastes at the edge of the EVA layer. The manufacturing process disclosed by the invention has the beneficial effects that the man |
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