Sheet forming machine and forming process

Abstract

The invention relates to a sheet forming machine and a forming process. The sheet forming machine comprises a heating device, a forming device, a cutting device and a winding device; the heating device is used for heating a plastic raw material, the forming device is used for forming the heated plastic raw material into a thin sheet, the cutting device is used for cutting off the two sides of the plastic thin sheet, and the winding device is used for winding the cut plastic sheet; and a winding roller is rotationally connected with a supporting frame, a rotating shaft of the winding roller and the supporting frame is parallel to the length direction of the winding roller, a cut-off tool is located between the winding roller and the cutting device and is in sliding connection with a frame body, one end of the traction rope is arranged on the winding roller, a blocking stick is in sliding connection with the frame body, the blocking stick is used for pulling the traction rope away from the surface of the plastic sheet, and a bonding knife is used for bonding the traction rope to the surface of the plastic sheet. The sheet forming machine has the effect that a reel can be conveniently and automatically replaced.

Description

technical field [0001] The present application relates to the field of plastic preparation machinery, in particular to a sheet forming machine and a forming process. Background technique [0002] Plastic sheets are mainly used to produce thermoformed products such as disposable plastic cups, plates, bowls, plates, boxes, etc., and are widely used in the packaging of food, vegetables, fruits, beverages, dairy products, and industrial parts. At present, a winding mechanism including a winding shaft is generally installed on the sheet material production line to collect the finished products in rolls. When the diameter of the collected sheet material reaches the set value, it is necessary to stop replacing the winding shaft so as to continue collecting. [0003] At present, in the application document with the application number 201510189816.8, a plastic sheet air pressure forming machine is disclosed, including an unwinding device, a sheet feeding device, a chain rail device, ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that after a roll of plastic sheet is wound, workers need to manually cut off the plastic, and then remove the plastic to replace a new reel. When replacing a new reel, workers need to manually guide Plastic sheet, which the inventor believes is complicated and a safety hazard for workers to replace with new rolls

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