Equipment for extruding plastic panel with continuously variable cross-section

Abstract

The invention relates to equipment for extruding a plastic panel, which belongs to the field of plastic product processing. The quipment for extruding a plastic panel with a continuously variable cross-section comprises an extrusion mold part; the extrusion mold part comprises a nozzle adapter connector (1) and an extrusion head (2) connected with the nozzle adapter connector (1); the extrusion head (2) comprises an upper cavity (3) and a lower cavity (4); and an extrusion passageway is arranged in the middle of the upper cavity (3) and the lower cavity (4). The equipment for extruding the plastic panel with a continuously variable cross-section is characterized in that an I-shaped sliding block is additionally arranged on the front end face of the extrusion head (2) and comprises an upper T-shaped block (6) and a lower T-shaped block (7); a space between the upper and lower T-shaped blocks is communicated with the extrusion passageway in the middle of the extrusion head (2); and the upper T-shaped block (6) and the T-shaped block (7) are respectively connected with servo hydraulic cylinders (8) and are driven to move up and down by the servo hydraulic cylinders (8). According to the invention, the plastic panel with a continuously variable cross-section can be automatically manufactured, the waste of materials can be greatly decreased, and the production cost of an enterprise can be reduced.

Description

technical field [0001] The invention relates to a plastic plate extrusion equipment, in particular to an extrusion equipment for plastic plates with continuously variable cross-sections. Background technique [0002] Plastic extrusion molding is widely used in production practice, and plastic sheets are more common in life. At present, the thickness of the plate extruded by the die of the extrusion die is constant, such as figure 1 , and many plastic sheet support frames are often non-uniform due to the load, which requires the stiffness and strength of the sheet to be able to design the corresponding thickness according to the load requirements, that is, the thickness of the sheet is continuously changing, such as figure 2 . At present, the thickness of the extruded plastic sheet is fixed, which is inconsistent with the actual thickness change requirements, which often leads to (20-30)% redundancy of the material. In other words, it is due to the lack of design and moldi...

AI Technical Summary

Problems solved by technology

[0003] Plastic sheet is the most widely used material at present, but the current processing technology of sheet mainly adopts extruder to shape through extrusion die, which often has the following problems: (1) Uniformity of extruded sheet thickness: cannot be achieved Extrusion of plastic sheets whose thickness varies continuously according to the section designed for rigidity

This will inevitably lead to (20-30)% redundancy of materials. In other words, due to the lack of design and molding process, a large amount of plastic material is wasted, which increases production costs; (2) Poor equipment flexibility: One extrusion port can only complete the forming of one specification sheet, lacks flexibility, and is difficult to adapt to sheets of different specifications and thickness

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