Plastic packaging bottle mould structure design

Abstract: the paper introduces the one-step simplex injection molding of medicinal plastic bottles of mould structure design. The mold a mold cavity, compact structure, simple operation and maintenance, and from the parison to products using ordinary injection machine one step, overcome the two footwork and one-step three station in production process, the equipment investment big shortcoming, high product yield. Key words: injection blow molding mold; Pharmaceutical plastic packaging bottles; One-step method; Simplex bit of medicinal plastic bottles has the advantages of qualitative light, not easy to damage, health, in accordance with the special requirements of pharmaceutical packaging. At present domestic in pharmaceutical tablet, capsule of packing, has been gradually achieve to & quot; Plastic & quot; Generation & quot; Bo & quot; 。 Injection molding ( Injection) Is the combined injection and blow molding production method of hollow products. For medicinal plastic bottles, bottle seal degree directly affect the safety of medicines, and injection molding method can guarantee the bottle and thread size precision, bottle body wall thickness, good air tightness, so the injection blow molding method can produce good medicinal plastic bottles. This paper designed a one-step simplex bit injection molding mold structure of medicinal plastic bottles. The mold can be done with ordinary injection machine one-time molding of plastic bottles. 1 pharmaceutical plastic packaging bottles of molding process after injection mold in injection machine, increased the blow molding process, without changing the original injection machine under the condition of working procedures, by injecting neutron join on PLC controller to control the blow molding process of mould. Injection molding work cycle is: clamping device clamping & rarr; Injection mold & rarr; Clamping device mould & rarr; Blow molding mold clamping & rarr; Blow molding & rarr; Cooling & rarr; Blow molding mold cavity & rarr; Plunger and blowing out plastic bottles & rarr; Reset the plunger. From blowing mold clamping mould opening to this period of time, plasticizing screw. 2 2 injection mould structure design. 1 mold overall structure one-step simplex bit injection molding hollow container whole mould directly applied to the ordinary injection machine, a complete the function of injection molding. The structure of injection mold by injection and blow molding mold close 2 for one, its structure is shown in figure 1. The mold exactly eight cavity, its fixed mode by the gate and hot runner, mold cavity, etc; Dynamic model by pushing plate, blowing mandrel, tooth head template, blow molding module and oil cylinder, etc. When the mold die after the bottle preform injection, dynamic model driven mandrel move together, mandrel is fixed on the moving mould, injection molding billet adhesion on the surface of the core rod, mold, after fully open under the impetus of the oil cylinder, blow molding module is closed. While mandrel internal cylinder start ( Blow) , complete the blow molding hollow container. Blow molding is completed, by pushing plate ejection products, then the injection machine to the next injection cycle. Only electrodes in the injection molding, injection phase without finalize the design of pressure maintaining and cooling, injection machine in the clamping state at this time. Blow molding stage of forming closed modules, blow molding, and open out are completed in the same mold. Injection process is the key to control the forming temperature of the mold cavity, to keep the mold cavity temperature uniformity. 2. 2 mandrel structure molding mandrel structure is shown in figure 2. After clamping during blowing, compressed air from one of the air inlet into the inlet board, promote the cylinder, so as to promote the mold core rod forward open port, the compressed air from another air inlet through the mandrel with mold core rod into the space between the molding cavity, blow molding process. Spring reset function for mold core rod. Please download the document view more content. Download address: the plastic packaging bottles of die structure design if you want to customize cosmetic plastic packaging bottles, please contact cosmetic packaging bottle manufacturers.
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