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The forming method of three-color scissors

A scissors, cooling forming technology, used in household components, applications, household appliances, etc., can solve the problems of long product cycle, many processing workers, unqualified rate, etc., to improve the qualified rate, reduce manual processing, and shorten the product cycle. Effect

Active Publication Date: 2011-12-07
鸿利达精密组件(中山)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This processing method requires three sets of injection molding equipment, that is, three (single-color) injection molding machines, plus one assembly equipment, so there are relatively many processing workers, the product cycle is too long, and the failure rate is about 3%.

Method used

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  • The forming method of three-color scissors
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  • The forming method of three-color scissors

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Embodiment Construction

[0018] The specific embodiments of the present invention will be described in further detail below according to the accompanying drawings.

[0019] The working principle of the present invention is that various plastics have different melting temperatures, and all have different degrees of shrinkage (shrinkage) after injection molding. Therefore, the material with high melting temperature is injected first in one equipment, and then the material with low melting temperature is injected after cooling and setting, so that the materials will not be fused together, and then the different shrinkage rates of different rubber materials are used to produce active parts. gap to achieve a movable effect.

[0020] The concrete processing method of three-color scissors among the present invention comprises the steps:

[0021] 1) Use PC (Polycarbonate, polycarbonate) rubber material and 5 rotating mold cores to perform injection molding on the left and right blades respectively, such as ...

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Abstract

The invention discloses a forming method for three-color scissors. The method comprises the following steps of: 1) performing injection molding on left and right scissor bodies by adopting first rubber and a rotary die core, namely forming the left and right scissor bodies in the die cavities of a rear die and a front die of the rotary die core respectively, and forming through holes in the left and right scissor bodies respectively at the same time of injection molding of the left and right scissor bodies; 2) opening the die after the left and right scissor bodies are formed and cooled, lifting the formed left and right scissor bodies, rotating the left and right scissor bodies together with the rotary die core, and feeding the left and right scissor bodies into a scissor forming die cavity; and 3) performing injection molding on a rotating shaft in the holes of the left and right scissor bodies by using the other rubber, performing injection molding on left and right scissor handles at one end of the left scissor body and one end of the right scissor body by using another rubber, and finally performing cooling formation.

Description

[0001] This application is a divisional application of the invention patent application with application number 200910126340.8. technical field [0002] The invention relates to a processing technology of scissors. Background technique [0003] In the environment of rising raw material prices, rising RMB exchange rate, increasing transportation, water and electricity prices, and improving employee benefits, traditional manufacturing is facing unprecedented challenges. How to simplify processing procedures; reduce manual processing; increase production capacity; control costs; squeeze out profit margins has become the primary issue for companies to survive and develop under fierce market competition. At present, plastic products with multiple materials and activities (such as scissors, lunch box lids, digital product casings and buttons, etc.) have complex production processes (manual / mechanical assembly after multiple injection molding), high failure rate, and long productio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/16B29K69/00B29K23/00B29L31/28
Inventor 蔡俊杰江先诚王伟光
Owner 鸿利达精密组件(中山)有限公司
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