Improved structure of corrugated paperboard production line

Abstract

The invention discloses an improved structure of a corrugated paperboard production line and belongs to production devices of corrugated cases. The improved structure of the corrugated paperboard production line aims at preventing cracks from generating on the paperboard close to indentation lines. The improved structure of the corrugated paperboard production line comprises a conveyor and a marking press, a nozzle (2) is respectively fixed at the position higher than the conveyor (5) in front of two indentation wheels (3) of the marking press, and the nozzles (2) are respectively communicated with a spraying device (6) through pipelines; a photoelectric sensor (1) electrically connected a controller (7) is arranged in front of the nozzles (2), and the controller (7) is electrically connected with the spraying device (6). The improved structure of the corrugated paperboard production line thoroughly overcomes the shortcomings that paper boards are crisp and can be cracked nearby the indentation lines, and solves the problem that indexes of compressive strength, puncturing strength and the like can drop easily caused by large paperboard moisture.

Description

technical field [0001] The invention relates to a corrugated cardboard box production equipment, in particular to a corrugated cardboard production line. Background technique [0002] As we all know, the corrugated box production process is usually to dry each layer of base paper first, and then combine each layer of base paper into corrugated cardboard by bonding, then roll creases on the corrugated cardboard, roll cut grooves, and finally along the fold Traces fold the cardboard into cartons. Due to the brittle texture of corrugated cardboard, many irregular cracks are prone to occur on the surface of the cardboard near the creasing line during the creasing process, which seriously affects the quality of the carton; especially when the cardboard is folded into a carton, the cracks will continue to extend and expand, resulting in scrapped. In order to avoid cracks, many manufacturers usually use the method of lowering the drying temperature to increase the humidity of the...

AI Technical Summary

Problems solved by technology

Although this method can effectively avoid cracks, the high humidity of the cardboard will affect the compressive strength, puncture strength and other indicators of the carton; the carton still cannot meet the requirements of relevant standards

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