One-step molding device for double-layer thick plastic sheet and molding process thereof

Abstract

The invention relates to a one-step molding device for a double-layer thick plastic sheet and a molding process thereof. The device and the mold can realize carrying out the blow molding process, the plastic sucking molding process and the hot seal molding process on the double-layer thick plastic sheet, and comprise an automatic feeding device, a upper and a lower molds, a vacuum system, a compressed air system, an upper and a lower heating furnaces, a plastic sheet clamping device, a plastic sucking product trimming device, a movement control system, a temperature control system and the like. The molding process comprises the following steps: (1) the automatic feeding device sends two plastic sheets to the molding area of the device, and the two plastic sheets are tightly pressed by an upper and a lower material pressing frames; (2) the upper and lower heating furnaces are moved to the molding area to simultaneously heat the two sheets, and an automatic infrared thermometer goes into operation; (3) the heating furnaces are automatically reset when the temperature of the infrared thermometer reaches to the molding temperature, compressed air is blown in between the two plastic sheets, simultaneously the upper and the lower molds start to move in the opposite directions to tightly press the two plastic sheets (realizing the thermal bonding of bonding parts of the two plastic sheets and the trimming of trimming positions), and two mold vacuum-pumping systems are turned on to realize the plastic sucking molding of the product; and (4) the upper mold and the lower mold are reset, and plastic sucking products are taken away. The device can realize the one-step blow plastic sucking molding of the double-layer thick plastic sheet as well as the plastic sucking molding of the single-layer thick plastic sheet, and has the advantages of compact structure, convenient operation, high molding efficiency, large molding area, small occupied area and energy saving.

Description

technical field [0001] The invention relates to a processing equipment and a molding process for large-scale double-thick plastic sheet plastic-absorbing molding plastic products, in particular to a device for making the double-layer thick plastic sheet hollow, plastic-absorbing, and heat-bonded for one-time molding. Background technique [0002] Double-layer blister products are widely used in automobile manufacturing, toy manufacturing, furniture, water supply and drainage, logistics industry and other fields. Products formed by double-layer sheet vacuum blister have the following advantages: 1: The product is hollow and has high strength. 2: Light weight 3: Can be designed into various complex shapes. 4: Low product unit cost 5: Fast production cycle 6: Low mold cost 7: The color and type of double-layer sheet can be selected according to needs, and the design is more optimized. 8: You can freely choose the combination of male and female molds according to product needs....

AI Technical Summary

Problems solved by technology

[0003] However, the existing domestic blister molding equipment cannot produce such double-layer hollow plastic products. Domestic manufacturers that can produce double-layer hollow plastic products rely on expensive imported equipment, which greatly increases the cost of plastic products. , limiting the application of double-layer blister products

The Chinese patents (200710025423.9, 200720040449.6) applied by Zha Zhu Fulai (200710025423.9, 200720040449.6) processing technology and equipment and molds for double-layer blister trays, processing equipment and molds for double-layer blister trays. Large size, complicated process, low production efficiency, and the scope of application is limited to pallets. Therefore, it is urgent to provide a processing machine with compact structure, simple process, high molding efficiency, and small footprint, which can be applied to the molding of all double-layer blister products. equipment

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