Secondary-heating energy-saving injection molding injection device

Abstract

The invention discloses a secondary-heating energy-saving injection molding injection device. The device structurally comprises a case, a driving box, a hopper, an injection mechanism and an air cylinder. The driving box is horizontally mounted on the upper end of the case and is mechanically connected with the case. The hopper is vertically mounted on the upper end of the driving box and penetrates through the inner side, the injection mechanism is embedded and mounted on the left side of the driving box and is mechanically connected with the driving box, the air cylinder is horizontally mounted on the upper end of the case, and the right end is connected with the left end of the driving box; the injection mechanism comprises a connecting end, a heating box, a filling port, a conveying structure and a heat insulation cover; the connecting end is mounted on the right end of the heating box, the filling port is formed in the upper end of the heating box in a penetrating manner, the right end of the conveying structure is embedded on the inner side of the heating box, the heat insulation cover is arranged on the outer side of the conveying structure in a covering manner and is mechanically connected with the conveying structure, the conveying structure is arranged on the left side of the heating box, plastic can be better heated and melted, partial cooling and solidifying are prevented, more energy is saved while secondary interval heating is carried out, and the injection head is better prevented from being blocked.

Description

technical field [0001] The invention belongs to the field of injection molding equipment, and in particular relates to a secondary heating energy-saving injection molding equipment. Background technique [0002] In the injection molding of the product, it is first necessary to heat and melt the plastic pellets, and then inject them into the injection mold for molding. Therefore, it is necessary to use injection molding equipment to work, and use the inner screw to rotate to extrude the melted raw materials into the In the injection mold, in order to better mix and melt the raw materials, the current equipment is equipped with a heating element in the screw at the feeding place, which is better for secondary heating and more energy-saving, but the existing technology has the following deficiencies: [0003] Due to the fast cooling and molding speed of the plastic, when the molten plastic is extruded and injected, it will be conveyed for a certain distance. The plastic cooled...

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Problems solved by technology

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a secondary heating energy-saving injection molding equipment to solve the problem of extrusion injection of molten plastic due to the rapid cooling and molding speed of the prior art. There is a certain distance of transportation, and during this period, no heating is carried out, so that the plastic starts to cool. When the glue is injected, a small part of the plastic will cool and condense, and part of it will remain on the injection head, which will cause the blockage of the injection , affecting further injection molding problems

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