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The basic working principle of pulp egg tray machine
The working principle of the pulp egg tray machine is relatively simple. The tray production line manufacturing machine adopts a new design concept of hot pressing, which combines traditional compression molding technology with modern plastic hot pressing technology to design a new type of egg tray with high output and low energy consumption. machine.
The basic working principle of pulp egg tray machine:
The pulp egg tray machine mainly uses the thrust of the screw (or plunger) to inject the plasticized raw material in the molten state (that is, the viscous flow state) into the closed mold cavity, and the process of obtaining the product after curing and shaping . Injection molding is a cyclic process, each cycle mainly includes: quantitative feeding - melting and plasticizing - pressure injection - mold filling and cooling - mold opening and taking out. After the plastic parts are taken out, the mold is closed again for the next cycle.
Generally, the automatic egg tray machine includes injection device, mold clamping device, hydraulic system and electrical control system. The basic requirements of injection molding are plasticizing, injection and molding. Plasticization is the premise to realize and ensure the quality of molded products, and in order to meet the requirements of molding, injection must ensure sufficient pressure and speed. At the same time, due to the high injection pressure, a correspondingly high pressure is generated in the mold cavity (the average pressure in the mold cavity is generally between 20 and 45MPa), so there must be a sufficient clamping force.
The egg tray machine is a special small pulp molding machine. It uses the thermoplasticity of the pulp. After being heated and melted, high pressure is applied to make it flow into the mold cavity quickly. After a period of pressure maintenance and cooling, it becomes pulp of various shapes. product.
The production process of egg tray machine equipment is simple and practical, and the production process basically achieves the environmental protection goal of zero pollution, which meets the requirements of clean production advocated by the state. First, put the raw materials into the pulper for crushing, and then transfer the pulp with a certain concentration required by the product through the pulping system. Then, the pulp is adsorbed to the mold through the pulping adsorption molding system, and then the molded product on the mold is dehydrated through the dehydration system. The waste water generated during the process is returned to the egg tray through the waste water return system. The egg tray produced by the equipment has no special requirements for hot pressing. Requirements, at present, the technology of egg tray production line of Hongrun Packaging Co., Ltd. is very skilled, and the precision of the mold is also very high, and the egg tray produced can fully meet the needs of domestic customers.
