Cutting and sealing device of tray preservative film packing machine

Abstract

The invention relates to a cutting and sealing device of a tray preservative film packing machine. A cutter mechanism, a scraper, a transverse film sealing mechanism and a roller support belt are arranged on a worktable in sequence from left to right; a front air blowing box is fixed on a vertical material conveying unit through a bracket, and is positioned at the front end of the cutter mechanism; a back air blowing box is fixed on the vertical material conveying unit through a bracket, and is positioned at the back end of the transverse film sealing mechanism; a fan is mounted at the lower end of the worktable, and is connected with the front air blowing box and the back air blowing box through pipes; and an air compressor is mounted at the lower end of the worktable, and is connected with the cutter mechanism and the transverse film sealing mechanism through pipes. The device is scientific and reasonable in design and simple and skillful in structure; and a transverse cutting and sealing unit realizes front end sealing through the front air blowing box and the scraper, and realizes back end sealing through the back air blowing box and the transverse film sealing mechanism, so that a preservative film cutting and sealing device is simpler in structure, reduces the production cost and the energy consumption, and improves the packing quality of preservative films to achieve high working efficiency.

Description

technical field [0001] The invention belongs to the technical field of packaging and relates to a tray plastic wrap packaging machine, in particular to a cutting and sealing device of the tray plastic wrap packaging machine. Background technique [0002] Plastic wrap is a kind of plastic packaging product, which is widely used in microwave oven food heating, refrigerator food preservation, fresh and cooked food packaging and other occasions. Seasonal commodities such as fresh fruits, vegetables and fresh meat need to be packaged with plastic wrap when they are sold. In order to better ensure the packaging aesthetics and packaging efficiency, a plastic wrap packaging machine is required. [0003] Through the search of published patent documents, two published patent documents similar to this patent application were found: [0004] Reference document 1 discloses an automatic plastic wrap packaging machine, the publication number of which is CN 203064225U. It includes the fra...

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Problems solved by technology

[0006] Comparative document 1 can realize the automatic packaging of plastic wrap, but the package does not move during the packaging process, and the wrapping step is completed by four coating plates from the horizontal and vertical directions. The operation is complicated and the packaging efficiency is low; Comparative document 2 can Realize the automatic conveying and packaging of materials, but the structure of the horizontal cutting and sealing device is complex, the manufacturing cost of the packaging machine is high, the workload and energy consumption are large, and the work efficiency is low

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