Heat setting rolling press and heat setting automatic corrugated laminating machine using the press

Abstract

The invention discloses a heat-setting rolling press machine. The heat-setting rolling press machine comprises a bracket and a bottom bed conveyor belt arranged above the bracket, wherein a supporting bottom plate is fixed under an upper-layer belt body of the bottom bed conveyor belt; the front and back ends of the bottom bed conveyor belt respectively extend upwardly to form front and back roller brackets; a heating and laminating conveyor belt is wound between front and back hollow rollers arranged on the front and back roller brackets; steam inlets formed in the end faces of the hollow rollers are communicated with an external steam pipeline through connectors; and a belt pressing device is arranged above a bottom-layer belt body of the heating and laminating conveyor belt. In order to radically change a working manner of the paper mounting machine, a setting mechanism of a full-automatic corrugated paper mounting machine adopts the heat-setting rolling press machine. A traditional rolling press machine working manner is subverted and a traditional cold setting working manner is changed into a hot setting manner, so that a glue box piece is rapidly stuck and rapidly dried; and the fitted box piece is flat and is not deformed, so that the technical difficulties of corrugated mounting are radically overcome.

Description

technical field [0001] The invention relates to a corrugated paper laminating machine, in particular to a heat-setting automatic corrugated paper laminating machine, and also relates to a heat-setting rolling press used in the heat-setting automatic corrugated paper laminating machine. Background technique [0002] Offset printing corrugated cardboard is a cardboard formed by a single-sided corrugated sheet with offset printing paper on the outside. It has the characteristics of low cost, light weight, square shape, and high pressure bearing strength. It has high-grade printing quality and can be used directly as outer packaging. Offset printing corrugated cardboard, which has the advantages of excellent printing adaptability, convenient storage and transportation, and direct display of products, is the first choice for packaging boxes or packaging boxes for many products. It is also widely used because of its relative environmental protection, energy saving, and low manufact...

AI Technical Summary

Problems solved by technology

Although the cold setting method is easier to operate and has relatively simple functional requirements for the equipment, due to the characteristics of thick fibers and high permeability of the corrugated medium paper, when the amount of glue applied is not large enough, the edge will be caused by the rapid absorption of glue by the corrugated paper. Unglue

Usually, in order to ensure that the surface paper can be firmly pasted on the corrugated paper, a large amount of gluing is required during the paper lamination operation, and a large amount of gluing will, on the one hand, cause higher humidity (high water content) in the finished cardboard , causing the corrugated cardboard (box) to undergo telescopic deformation, and the deformed (expandable and severely warped) box will cause subsequent die-cutting operations to be unsmooth, usually manifested as unsmooth paper feeding and die-cutting movement Etc., after forming the packaging box, the shape of the packaging box is not correct, the pattern deviates and other bad phenomena, which seriously affect the appearance of the product. Many products will be scrapped due to the movement of die-cutting, and because the box board contains high humidity, it is not easy to dry ( up to 20 hours), therefore, the finished boxboard is obviously squishy

Moreover, in order to reduce the degree of warping of the box pieces, it is necessary to turn over every 20 sheets when receiving the paper, and then turn it back when it is die-cutting, thus increasing the amount of manual labor; on the other hand, excessive humidity It will inevitably cause the finished product to become soft, reduce the pressure index of the product, and the surface paper will have obvious pits, and the steel paper-feeding rollers, gluing rollers and laminating rollers configured by the wet laminating machine will bring corrugation problems. Higher pressure will lower or even overwhelm the corrugation. Due to the reduction of the height of the corrugation and the influence of humidity, the compression resistance of the corrugation will be lost by at least 30%.

In order to make up for the above losses, it must be compensated when matching materials, and the physical indicators of corrugated box sheets are ensured by increasing the indicators or quantification of corrugated materials. Therefore, a great waste of raw material costs is caused.

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