Automatic leather flattening method based on automatic leather flattening device

Abstract

The invention provides an automatic leather flattening device and method. The automatic leather flattening method comprises the following steps: S10, feeding is conducted; S20, a vacuum pump is started, a negative-pressure leather suction roller rotates to roll to-be-flattened leather on the outer surface of the negative-pressure leather suction roller, and the negative-pressure leather suction roller stops rotating; S30, a position adjusting mechanism is started, and the negative-pressure leather suction roller carrying the to-be-flattened leather is conveyed to the position above a platen until the to-be-flattened leather abuts against the platen; S40, the negative-pressure leather suction roller rotates reversely, and meanwhile, the position adjusting mechanism controls the negative-pressure leather suction roller to move in the direction away from the platen at a constant speed till the to-be-flattened leather is completely flattened on the platen; and S50, resetting is conducted. According to the automatic leather flattening device and method, soft to-be-flattened leather can be automatically flattened to a designated position, layer-by-layer stacking of multiple layers of platens is achieved, the flattening efficiency and flattening quality of the to-be-flattened leather are improved, and the leather flattening cost is reduced.

Description

technical field [0001] The invention relates to the technical field of leather processing, in particular to an automatic leather flattening method based on an automatic leather flattening device. Background technique [0002] Leather preparation is a complex process of various physical and chemical treatments on animal hides, mainly including three stages: preparation stage, tanning stage and finishing stage. The finishing process is the most complicated, mainly including: drying, softening, flattening, grinding, coating and embossing, etc. The purpose is to improve the sensory properties of leather, including: thickness, softness and water resistance. In order to increase production efficiency, the leather is transported by conveyor belts between the various processes in the finishing phase. However, a vacuum dryer is used in the leather drying stage, and the laying of the leather on the table is almost all done manually. Specifically, several people work together to lift ...

AI Technical Summary

Problems solved by technology

However, a vacuum dryer is used in the leather drying stage, and the laying of the leather on the table is almost all done manually. Specifically, several people work together to lift a whole piece of wet leather (the weight is very heavy), and then put it on The leather is stretched out, which wastes manpower and reduces production efficiency, so there is an urgent need for a leather automatic flattening device to solve the following two problems:

[0003] (1) If there are wrinkles after the leather is laid on the table, the drying effect of the whole leather will be different, and the leather may be damaged due to the mutual extrusion between the two layers of the table, so the leather should be laid flat on the table on board

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