Packaging box pre-expanding device and method

Abstract

The invention discloses a packaging box pre-expanding device and method. The device comprises a to-be-expanded area, an expanding rod and an expanding rod driving mechanism connected with the expanding rod. A to-be-expanded paper box is placed in the to-be-expanded area. The front end of the expanding rod is driven by the expanding rod driving mechanism to move in the direction close to the paperbox, and the expanding rod is inserted in the paper box and expands the paper box. According to the packaging box pre-expanding device and method, box expanding, positioning and resetting are finishedat a time through a simple mechanical structure, and the design and debugging difficulty and influences on the environment are greatly lowered.

Description

technical field

[0001] The invention relates to a packing box pre-stretching device, in particular to a packing box pre-stretching device and a pre-stretching method of a cartoning machine. Background technique

[0002] In the stationery industry, the box of the cartoning machine must be flat in order to save packaging and transportation costs and space (such as Figure 1a shown), therefore, there must be a device on the cartoning machine to make the flat box open (such as Figure 1b shown), and seal the box cover at one end, so as to receive the writing pen or packaging bag pushed by the pushing mechanism.

[0003] The traditional carton opening device generally uses a vacuum suction cup to operate, such as figure 2 As shown, two vacuum suction cups 1 are installed to suck one side of the carton, and then the suction cups 1 are pulled down under the traction of the driving linkage mechanism 2, and at the same time, the carton is opened by the side of the auxiliary support...

Images