A combined storage box and its manufacturing device

Abstract

The invention relates to a combined container comprising a plurality of individual containers (11), each of which is formed from a plastic sheet (L) comprising at least one layer of PET (polyethylene terephthalate) Each independent storage box (11) is connected by a connecting bridge (12), and an upper pre-cutting line (13) and a lower pre-cutting line (14) for disconnecting the connecting bridge are arranged on the connecting bridge. The upper pre-cutting line (13) and the lower pre-cutting line (14) are horizontally parallel and spaced laterally, and are spaced from each other in the vertical direction, so as to avoid changes in the properties of the PET layer when the heat of compression is too high. Rotating the holding box at the upper and lower pre-cut lines can neatly disconnect the connecting bridge. The invention also provides a device for manufacturing the combined storage box.

Description

technical field [0001] The invention relates to the field of manufacturing combined storage boxes used in the food industry, in particular to storage boxes for packaging yogurt, custard, custard, jelly or similar foods. Background technique [0002] In the manufacture of container boxes in the food industry, single-layer or multi-layer boards made of plastic materials are usually used to make combined container boxes. These combined receptacles have a plurality of individual cavities or receptacles which are connected by connecting bridges arranged in the plastic sheet. [0003] Once each individual container is filled and closed, each container will be subjected to a cutting operation in which the shape of a part of the structure of the container is machined and a pre-cutting operation in which a pre-set is placed on the connecting bridge. A cutting line, the pre-cutting line will be used to realize the subsequent breaking and separation of each independent container of th...

AI Technical Summary

Problems solved by technology

This flattening process will increase the temperature in the central area of ​​the material to be cut, causing the molecular structure of the PET material to change and become a more elastic material, thus increasing the classic hinge effect of PET, therefore, in order to break the connecting bridge And to separate each containing box, the containing box must be rotated in opposite directions at the same time, resulting in the separation of the containing box will leave an irregular surface in the pre-cut area, posing a threat to consumers

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