Vacuum thermal forming system and forming method thereof

Abstract

The invention provides a vacuum thermal forming system and a forming method thereof. The vacuum thermal forming system is composed of a frame, a workbench arranged in the frame, side plates connected to the side faces of the frame, a top plate connected to the top of the frame and a bottom plate connected to the bottom of the frame. A driving mechanism and a transmission mechanism are arranged on the frame, a film pressing mechanism is connected to the transmission mechanism, a heating unit and a forming mechanism are correspondingly arranged above and below the film pressing mechanism, a control unit is arranged on the bottom plate, and the control unit is electrically connected with the driving mechanism, the heating unit and the forming mechanism correspondingly. Through cooperative use of the driving mechanism, the transmission mechanism, the film pressing mechanism, the heating unit, the forming mechanism and the control unit, automatic film pressing forming and demolding treatment of a thermoplastic sheet are achieved, the processing efficiency and the forming quality of products are guaranteed, and a large amount of manpower and material resources are saved; and meanwhile, the thermoplastic sheet is convenient to disassemble and assemble, and the equipment operation difficulty is reduced.

Description

technical field [0001] The invention relates to the technical field of thermoforming, in particular to a vacuum thermoforming system and a forming method thereof. Background technique [0002] Thermoforming is a special plastic processing technology that processes thermoplastic plastic sheets into various products. After heating the thermoplastic plastic sheet such as PVC to a certain temperature, it will be in a softened state. Under a certain external force, it will be adsorbed and cooled on a special mold surface. After processing, it will be processed. Cutting and trimming to obtain open and three-dimensional plastic products, so thermoforming is widely used in packaging, involving pharmaceutical packaging, health product packaging, chemical packaging, food packaging and other industries. For example, the filing date is 2015.04.24, the publication number is CN106457656A, and the Chinese patent titled "thermoforming device" also discloses a kind of thermoforming equipmen...

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Problems solved by technology

[0003] 1. Before thermoforming, it is necessary to install and fix the thermoplastic sheet. In the prior art, bolts or clamps are usually used to fix the thermoplastic sheet. This method is not only difficult to disassemble and install the sheet, but also Moreover, it is also prone to unevenness or wrinkles of the sheet, which affects the effect of thermoforming and the molding quality of the product;

[0004] 2. After the product processing is completed, it is usually necessary to manually fix the thermoplastic sheet on the mold and then perform thermoforming, and then manually remove the formed product. The process is cumbersome and the installation accuracy is not high, and it also consumes a lot of manpower and material resources, reducing the processing efficiency of sheet thermoforming

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