A kind of chemical injection molding micro-foaming system and foaming method
A micro-foaming and injection system technology, applied in the field of plastic chemical foaming, can solve the problems of difficult control of foaming process and cell structure, unsatisfactory foaming effect, etc., and achieves uniform and dense cell structure, low equipment requirements, The effect of high production efficiency
Active Publication Date: 2017-11-07
GUIZHOU MATERIAL IND TECH INSTITUE
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Problems solved by technology
[0003] The purpose of the present invention is to provide a chemical injection molding micro-foaming system and a foaming method to solve the problems of difficult control of the foaming process and cell structure and unsatisfactory foaming effect in the existing chemical foaming injection molding process
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[0027] refer to figure 1 , figure 2 and image 3 , the present embodiment provides a chemical injection molding micro-foaming system and a foaming method, the foaming system includes an injection system 1, a foaming device 2 (micro-foaming device) and a control system 3, the injection system 1 includes a barrel 11, a set The hopper 12 on the barrel 11, the screw 13 arranged in the barrel 11, the motor 14 that drives the screw 13 to rotate, and the heating system 18 for heating the raw material in the barrel 11, the injection system 1 also includes a driving motor 14 The driving mechanism 15 moving along the axial direction of the barrel 11 and the pressure sensor 16 arranged in the barrel 11, the foaming device 2 includes a fixed mold 21, a movable mold 22 arranged corresponding to the fixed mold 21, and a movable mold 22 arranged on the movable mold 22. The moving core 23 inside, the core driving mechanism 24 that drives the moving core 23 to move, and the temperature sen...
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The invention provides a chemical injection molding and micro-foaming system and a foaming method. The chemical injection molding and micro-foaming system comprises an injection system, a foaming device and a control system, wherein the injection system comprises a charging barrel, a hopper arranged on the charging barrel, a screw rod arranged in the charging barrel, a motor for driving the screw rod to rotate, a heating system for heating raw materials in the charging barrel, a driving mechanism for driving the motor to move along the axial direction of the charging barrel, and a pressure sensor arranged in the charging barrel; the foaming device comprises a fixed mold, a movable mold corresponding to the fixed mold, a movable mold core arranged in the movable mold and a mold core driving mechanism for driving the movable mold core to move; and the driving mechanism, the pressure sensor and the mold core driving mechanism are connected with the control system respectively. Problems in an existing chemical foaming and injection molding process that a foaming process and a foam pore structure are difficult to control, a foaming effect is not ideal and the like are solved. The chemical injection molding and micro-foaming system and the foaming method belong to the field of chemical foaming of plastic.
Description
technical field [0001] The invention relates to a foaming system and a foaming method, belonging to the field of chemical foaming of plastics. Background technique [0002] Compared with unfoamed materials, the density of foamed plastics can be reduced by 5% to 95%, thereby reducing raw material consumption and cost. At the same time, it has the advantages of good sound insulation and heat insulation performance, shock load absorption, good cushioning performance, and low price. Among them, compared with ordinary foaming materials, microcellular foamed plastics have a denser and more uniform cell structure, higher cell density, better overall performance of the product, better surface quality, and less shrinkage and warpage of the product. Low and can be processed into thin-walled products, so microcellular foamed materials are one of the hotspots in the field of foam materials research in the near future. At present, the technology of microcellular foaming mainly focuses o...
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IPC IPC(8): B29C44/02B29C44/42B29C44/60
CPCB29C44/02B29C44/422B29C44/424B29C44/60
Inventor 何力蒋团辉朱建华龚维张翔张纯王醴均
Owner GUIZHOU MATERIAL IND TECH INSTITUE