One-shot plasticizing molding device and process of liquid two-component polyurethane
A two-component polyurethane and molding device technology, which is applied in the field of liquid two-component polyurethane injection molding, can solve the problems of large energy consumption and lack of energy, and achieve the effects of simple and compact structure, fast molding products, and simple and reliable molding equipment
Active Publication Date: 2015-11-25
DALIAN HUAGONG INNOVATION TECH
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Problems solved by technology
[0002] At present, there is no one-time plasticizing molding device and process for liquid two-component polyurethane at home and abroad, that is, the two-component polyurethane is mixed and stirred, extruded once, extruded twice, and then the mixed polyurethane is injected into the molding mold. Curing molding to obtain the desired product, this process is similar to the plastic injection molding process, but the conventional polyurethane injection molding process needs to heat the polyurethane particles to a melting temperature of 200-260 ° C, and then inject the molten polyurethane into the mold through screw extrusion injection Among them, the product is cooled and shaped by cooling the mold. This process requires heating and cooling to realize, and consumes a lot of energy. At present, there is a lack of a liquid two-component polyurethane one-time plasticizing molding device and process
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specific Embodiment approach 1
[0008] Specific implementation mode one: as figure 1 As shown, the liquid two-component polyurethane primary plasticizing molding device and process of the present invention include a two-component polyurethane mixing head, a primary reaction delivery device, a secondary pressurized injection molding device and a molding die, which are vertically arranged between them. The center of the rubber outlet pipe 25 of the component polyurethane mixing head is aligned with the center of the hopper 7. The screw A26 is installed in the inner hole of the screw barrel A6. The feeding port of the screw barrel B30 of the pressure injection molding device is connected and connected with each other, the upper end of the material channel 29 is connected with the right side of the flange 27, the lower end of the material channel 29 is connected with the feeding port of the screw barrel B30, and the injection nozzle 32 and the molding die are connected. The injection channel 34 is concentric and...
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The invention provides a liquid two-component polyurethane primary plasticizing molding device and process. By utilizing the liquid two-component polyurethane primary plasticizing molding device, liquid polyurethane raw materials with two components are subjected to mixing, stirring, primary reaction transportation and secondary pressuring injection molding, and then mixed polyurethane is injected to a molding die for solidification molding to obtain a required product. By utilizing the liquid two-component polyurethane primary plasticizing molding process, heating is not needed, energy sources are saved, the molding product is fast and convenient, and a molding device is simple and reliable.
Description
technical field [0001] The invention relates to a liquid two-component polyurethane primary plasticizing molding device and process, which is mainly used in the field of liquid two-component polyurethane injection molding. Background technique [0002] At present, there is no one-time plasticizing molding device and process for liquid two-component polyurethane at home and abroad, that is, the two-component polyurethane is mixed and stirred, extruded once, extruded twice, and then the mixed polyurethane is injected into the molding mold. Curing molding to obtain the desired product, this process is similar to the plastic injection molding process, but the conventional polyurethane injection molding process needs to heat the polyurethane particles to a melting temperature of 200-260 ° C, and then inject the molten polyurethane into the mold through screw extrusion injection Among them, the product is cooled and shaped by cooling the mold. This process requires heating and coo...
Claims
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IPC IPC(8): B29C45/47
Inventor 韩毅军
Owner DALIAN HUAGONG INNOVATION TECH