Production technology of plastic trays and packing boxes

Abstract

The invention discloses a production technology of plastic trays and packing boxes. The production technology comprises steps: a. arranging PET (polyethylene glycol terephthalate), PS (poly styrene) or PVC (polyvinyl chloride) coiled materials into a glue spraying machine, and spraying glue to the coiled materials; b. manufacturing a EPS (polystyrene) plate according to the shape of a tray, drilling a plurality of holes for airflow to pass through on the EPS (polystyrene) plate; c. absorbing the PET (polyethylene glycol terephthalate), PS (poly styrene) or PVC (polyvinyl chloride) which are sprayed with the glue on the outer surface of the EPS (expandable polystyrene) plate; and d. arranging the product obtained in the step c on an edge ironing machine for ironing the edge, ironing four edges, and finally arranging the plastic legs, wherein the glue spraying machine comprises an unwinding roller for unwinding the coiled materials and a winding roller for winding the coiled materials; a die head is arranged between the unwinding roller and the winding roller; the lower end of the die head is provided with a row of nozzles used for spraying the glue; and the nozzles face the coiled material arranged between the unwinding roller and the winding roller. With the adoption of the production technology, the surface of the EPS (expandable polystyrene) plate is coated with a layer of the PET, the PS or the PVC materials which are sprayed with the glue by a plastic absorbing form, so that the manufactured tray is high in bearing capacity, light in self weight and low in cost.

Description

technical field [0001] The invention relates to a production process of a plastic-absorbing tray and a packing box, and more precisely, relates to a process of utilizing a plastic-absorbing process to achieve the coating function. Background technique [0002] The structure of commonly used pallets and packing boxes mainly includes a panel and supporting feet. The panel is used to support the goods, and the supporting feet are used to support the panel to keep a certain distance between the panel and the ground, which is convenient for the forklift and transfer operation of the transfer forklift or manual hydraulic forklift. Traditional pallets mainly include iron pallets, wooden pallets, plywood pallets, and plastic injection pallets. In addition, the packaging boxes mainly include wooden boxes, plywood, and plastic injection boxes. Among them, iron pallets have certain limitations in actual transportation due to their excessive weight and high cost; plywood pallets and woo...

AI Technical Summary

Problems solved by technology

In addition, the packaging boxes mainly include wooden boxes, plywood, and plastic injection boxes. Among them, iron pallets have certain limitations in actual transportation due to their excessive weight and high cost; plywood pallets and wooden pallets or boxes are more susceptible to moisture. Moreover, a large amount of masterbatch is wasted in the production process, which is destructive to the environment, and because wooden pallets are easy to spread parasites during the transfer process, fumigation is required, and the methyl bromide used in fumigation has certain harm to the human body

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