Plastic packaging box and production process thereof

Abstract

The invention relates to a plastic packaging box. The plastic packaging box comprises a box body, a box cover, a connection bar and lugs, wherein the box body is connected with the box cover through the connection bar; grooves are formed in the lower end of the box body in the form of front-rear symmetry, the lugs are arranged at the upper end of the box cover in the form of front-rear symmetry, and the grooves form one-to-one correspondence with the lugs in position; and the box cover comprises a cover body, an auxiliary buckle, a clamping block, an elastic sheet and a press sheet. The invention further provides a production process for the plastic packaging box. The production process for the plastic packaging box comprises the steps of material mixing, injection die fixing, injection forming, die release, slitting, finish machining, and stacking and boxing, wherein a slitting device comprises a base plate, a workbench, a working cylinder, an installation frame, a location frame anda slitting tool. The plastic packaging box has the advantages of being firm in connection firmness for the box cover and the box body, high instability during stacking and transporting; and the slitting device has the advantages of being high in slitting accuracy, free from causing scratches to the plastic packaging box, capable of directly carrying out stacking, and the like.

Description

technical field [0001] The invention relates to the field of plastic products, in particular to a plastic packaging box and a production process thereof. Background technique [0002] Boxed packaging containers made of plastic have many characteristics such as low density, light weight, and easy processing. The appearance can be transparent or opaque, and are widely used in the food packaging industry. [0003] There are some problems in the use of the existing disposable plastic packaging boxes: a. The box cover and the box body are easy to separate, causing the items in the box to be scattered. b. After using staples to fix the box cover and the box body, it increases the difficulty of opening the box, and the staples are easy to scratch the hands; c. During the palletizing movement, due to the bumpy road, stacking The packaging box is easy to collapse and has poor stability. [0004] In the production process of plastic packaging boxes, including mixing, injection moldi...

AI Technical Summary

Problems solved by technology

[0003] There are some problems in the use of the existing disposable plastic packaging boxes: a. The box cover and the box body are easy to separate, causing the items in the box to be scattered. b. After using staples to fix the box cover and the box body, it increases the difficulty of opening the box, and the staples are easy to scratch the hands; c. During the palletizing movement, due to the bumpy road, stacking The packaging box is easy to collapse and has poor stability

The above two patents can improve the sealing firmness to a certain extent, but for disposable plastic packaging boxes, the production cost is high, the practicability is low, and the problem of poor transport stability of stacked plastic packaging boxes cannot be solved

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