Positioning device for packaging box facing paper

Abstract

The invention relates to the field of packing box processing, in particular to a locating device of packing box finish paper. The locating device comprises an X-direction sensor and a Y-direction sensor, and the X-direction sensor and the Y-direction sensor are used for measuring the plane position of the finish paper A. A blowing unit is arranged on the lateral side, close to the front end of the finish paper A, of the Y-direction sensor. The blowing direction of the blowing unit points to the detection position of the Y-direction sensor. The blowing unit is located at the front end of the finish paper, and blows airflow towards the detection position of the Y-direction sensor, so that the finish paper A is closely attached to a conveying belt, the finish paper is prevented from being upwarped, accurate locating of the Y-direction locating sensor is ensured, and therefore the quality of a packing box is improved.

Description

technical field [0001] The invention relates to the field of packaging box processing, in particular to a positioning device for the decorative paper of the packaging box. Background technique [0002] Packaging boxes for wine, food, etc. are usually composed of gray cardboard and decorative paper attached to the surface of the gray cardboard. The function of the gray cardboard is to ensure the overall strength of the packaging box, and its material is relatively hard, while the decorative paper is used for marking, and the decorative paper is usually made very thin for the convenience of printing and cost saving. Therefore, gray cardboard and decorative paper are processed separately, and then the decorative paper is pasted on the gray cardboard. At present, an automatic veneering paper machine is often used to complete the pasting process. Specifically, put the veneer paper coated with glue on the back (glue side up) on the conveyor belt, and after it is transported to th...

AI Technical Summary

Problems solved by technology

However, if the front edge of the facing paper is exactly in the middle of the two rows of adsorption holes, it is difficult to ensure that the front edge of the facing paper is attached to the conveyor belt smoothly.

In addition, during the moving process of the conveyor belt, there will be a relatively reverse wind flow (opposite to the conveying direction), and the front edge of the facing paper is easy to be blown up, which is very easy to cause the front edge of the facing paper to lift, thereby interfering with the positioning of the sensor, resulting in The positioning of the facing paper is inaccurate, which in turn affects the positioning of the gray cardboard, resulting in misalignment of the facing paper and gray cardboard, seriously affecting the quality of the packaging box

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