Thermal forming mechanism of plastic product box

Abstract

The invention provides a thermal forming mechanism of a plastic product box. The thermal forming mechanism comprises a lower mold seat, wherein a stand column is arranged on the lower mold seat; an upper mold seat, an upper mold platform and a lower mold platform are sleeved on the stand column; an upper mold is arranged on the upper mold platform; the lower mold is arranged on the lower mold platform; the upper mold platform and the lower mold platform are driven by power sources respectively to ascend and descend up and down; when the upper mold platform and the lower mold platform get close, the upper mold and the lower mold are closed; when the upper mold platform and the lower mold platform are separated, the upper mold and the lower mold are opened; a cutter is arranged on a mold core of a stretching mold of the upper mold; and the thermal forming mechanism of the plastic product box further comprises a piece clamping device for clamping a piece before the upper mold and the lower mold are closed. The thermal forming mechanism of the plastic product box has the advantages that 1, after molding closing and molding, punching is carried out in a mold cavity so that the work of two stations is finished in one station; 2, de-molding can be promoted; when some plastic product boxes with complicated shapes are not easy to remove by using air blowing, a de-molding mechanism is used for de-molding; 3, the plastic product box with the simple shape also can be de-molded by directly blowing air; and 4, a rapid mold replacing device is additionally arranged so that the upper and lower molds are convenient and rapid to replace.

Description

technical field [0001] The invention relates to a plastic product clamping and forming mechanism. Background technique [0002] Plastic product boxes (such as plastic bowls, egg trays, moon cake boxes, biscuits, supermarket vegetable plastic boxes, etc.) need to be formed and punched during the production process. At present, forming and punching need to be carried out on two equipment with different stations, and the disadvantage is that it will increase the overall length of the plastic product box production equipment and increase the cost of the equipment. [0003] Secondly, the air blowing method is used in the current equipment for demoulding. However, when some complex shaped plastic product boxes are difficult to remove by blowing air, at this time, if the blowing volume is increased for forced demoulding, the product will be deformed and appear. defective product. In addition, when changing molds for different products on the forming machine, people need to climb ...

AI Technical Summary

Problems solved by technology

At present, forming and punching need to be carried out on two equipment with different stations. The disadvantage is that it will increase the overall length of the plastic box production equipment and increase the cost of the equipment.

[0003] Secondly, the air blowing method is used in the current equipment for demoulding. However, when some complex shaped plastic product boxes are difficult

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