Spiral jet polyurethane upper-connected shoemaking device and preparation process thereof

A polyurethane and spiral technology, which is applied in the field of shoemaking, can solve the problems of small space for installing the bottom mold, large occupied space, and high requirements on process parameters, etc., and achieve quick and convenient replacement or cleaning of the bottom mold, less space occupied, and temperature control precise effect
CN113287841APending Publication Date: 2021-08-24JIHUA 3514 LEATHER & FOOTWARE
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
JIHUA 3514 LEATHER & FOOTWARE
Publication Date
2021-08-24

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Abstract

The invention discloses a spiral jet polyurethane upper-connected shoemaking device. The device comprises a base, a bottom die device, a left side die and a right side die and further comprises a spiral jet device used for spraying raw materials. The invention further discloses a multi-component polymer mixed spiral jet flow shoemaking preparation process. The process comprises the steps: a bottom die moves to the outer portions of the left side die and the right side die; a plurality of polymer raw materials are added into a feeding mechanism of the spiral jet flow device and sprayed to the shoe sole in a spiral airflow mode, and a jet flow layer used for combining the shoe upper and the shoe sole is formed; and the left mold and the right mold press the shoe last to be combined with the bottom mold, and the polymer jet flow layer sprayed on the shoe sole expands and enters the shoe upper and the shoe sole in a diffusion and permeation mode, so that the shoe upper and the shoe sole can be combined. The bottom die can be conveniently and rapidly replaced and cleaned, the spiral jet flow device can conveniently spray raw materials on the bottom die, widened special shoes and boots can be produced, the jet flow amount is large, the edge track of a formed jet flow conical surface is clear, and the device is suitable for production of all the shoes and boots.
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Description

technical field

[0001] The invention belongs to the technical field of shoemaking, and relates to a shoe-making device with spiral jet polyurethane uppers, and also relates to a process for making shoes with spiral jet polyurethane uppers. Background technique

[0002] In the shoe-making process, the sole and the upper are bonded together by glue. When bonding, the bottom mold, the left mold, and the right mold are pressed together to form extrusion molding. However, in the prior art, when the left mold and the right mold are closed, due to the complex structure of the adjustment device, the occupied space is large, resulting in a small stroke of the left mold and the right mold, and the shoes and mold bases that can be installed are narrow, which cannot satisfy Widen the production demand for special shoes and double-frame three-density shoes and boots, which limits the scope of production.

[0003] The installation position of the bottom mold in the prior art is fixed, an...

Claims

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