Slipper or sole material foaming technology and in-mold foaming device

A technology for sole materials and slippers, which is used in household components, applications, household appliances, etc., can solve the problems of inability to conduct microwave heat, uneven heating of materials, short process time, etc. time, the effect of shortening the process time

Inactive Publication Date: 2019-04-16
泉州诚宇鞋业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the disadvantages in the prior art that the mold is a metal mold, microwave heat conduction is not possible, the foaming material cannot be heated by microwave, the heat transfer time is long, the material is heated unevenly, the vulcanization and foaming time is too long, and the production efficiency is slow. The mold made of ceramic material uses microwave to heat the foaming material, so that the foaming material is heated evenly, the process time is short, the mold cooling time is short, and the production efficiency is high. A foaming process and in-mold foaming device for slippers or sole materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A foaming process for slippers or shoe sole materials, comprising the following steps: step (1), placing cold blanks in a mold that can penetrate microwaves; step (2), vacuumizing the mold cavity of the mold; step (3), Microwave heating cold embryo to 180°C under vacuum condition; step (4), after step (3), keep cold embryo constant temperature at 180°C with microwave under vacuum condition, and vulcanize and foam the cold embryo. The microwave heating method is used to change the heat transfer mode of the mold. The microwave has a longer wavelength than other electromagnetic waves used for radiant heating, such as infrared rays and far infrared rays, so it has better penetration and greatly shortens the heat conduction in conventional heating. Time, the microwave penetrates the ceramic mold and directly heats the cold embryo, so that the cold embryo in the mold cavity can reach the foaming temperature uniformly in an instant, and the microwave heating is even, thus great...

Embodiment 2

[0026] A foaming process for slippers or shoe sole materials, comprising the following steps: step (1), placing a cold embryo in a mold that can penetrate microwaves; step (2), placing the mold in a vacuum environment; step (3), Microwave heating cold embryos to 180°C under vacuum conditions; step (4), after step (3), keep the cold embryos at a constant temperature of 180°C with microwaves under vacuum conditions, and vulcanize and foam the cold embryos. The microwave heating method is used to change the heat transfer mode of the mold. The microwave has a longer wavelength than other electromagnetic waves used for radiant heating, such as infrared rays and far infrared rays, so it has better penetration and greatly shortens the heat conduction in conventional heating. Time, the microwave penetrates the ceramic mold and directly heats the cold embryo, so that the cold embryo in the mold cavity can reach the foaming temperature uniformly in an instant, and the microwave heating i...

Embodiment 3

[0034] The difference between this embodiment and Embodiment 1 is that this embodiment also provides an in-mold foaming device for the foaming process, including a cold billet injection machine for manufacturing the cold billet in step (1) , a ceramic mold for vulcanization and foaming of the cold embryo, a vacuum machine for vacuumizing the ceramic mold in steps (2), (3), and (4), and a temperature control system, which includes a temperature control system for A microwave heating device for heating the cold blank in the ceramic mold, a temperature sensor for measuring the temperature in the ceramic mold, a temperature control module for analyzing the measurement information of the temperature sensor and controlling the operation of the microwave heating device, the temperature control module is connected to the temperature sensor and the microwave heating equipment.

[0035] The working process of the in-mold foaming device is: use the cold blank injection machine to inject ...

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Abstract

The invention relates to the field of slipper or sole foaming technologies, and discloses a slipper or sole material foaming technology. The slipper or sole material foaming technology comprises the following steps that step (1), a cold blank is placed into a mold capable of being subjected to microwave penetrating; step (2), a mold cavity of the mold is vacuumized or the mold is placed in a vacuum environment; step (3), the cold blank is subjected to microwave heating to 170-180 DEG C under the vacuum condition; and step (4), after the step (3), the cold blank is kept at the constant temperature of 170-180 DEG C through microwaves under the vacuum condition, and the cold blank is subjected to vulcanization foaming. The mold is a ceramic mold. The invention further discloses an in-mold foaming device for the foaming technology. By utilizing the characteristic that the ceramic mold can be subjected to microwave penetrating, the cold blank in the ceramic mold can reach the foaming temperature instantly in a unified mode, the cold blank is heated evenly through microwave heating, thus the foaming vulcanization time of whole foaming materials is greatly shortened, accordingly, the foaming vulcanization time is shortened, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the field of foaming slippers or shoe soles, in particular to a material foaming process for slippers or shoe soles and an in-mold foaming device. Background technique [0002] Compared with traditional solid sole materials, foamed sole materials have the advantages of lightness and comfort, excellent physical properties, and low cost, and have great development potential in the sole market. At present, foamed shoe sole materials are developed around "rubber-plastic blending, rubber-to-plastic": that is, one or more resins are used as the matrix, and different types of rubber are added for modification according to specific use requirements. Sole foam materials mainly include the following typical foam sole materials: 1. Polyvinyl chloride (PVC), which entered the shoemaking field at the earliest, has a large quantity, excellent mechanical properties, convenient processing, and low cost, but is poor in environmental protection....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C44/12B29C44/34B29C44/58B29C44/60B29B11/08B29C35/08B29C33/38B29L31/50B29K23/00
CPCB29B11/08B29C33/38B29C35/0805B29C44/1261B29C44/3419B29C44/3423B29C44/58B29C44/60B29C2035/0855B29K2023/083B29L2031/50B29L2031/504
Inventor 陈启泰郑书友陈哲宇
Owner 泉州诚宇鞋业有限公司
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