Vacuum embossing machine for PU synthetic leather

Abstract

The invention discloses a vacuum embossing machine for PU (polyurethane) synthetic leather, and aims to overcome the defects that the embossing effect is poor and the product quality is reduced when the PU synthetic leather is embossed in an extrusion manner. The vacuum embossing machine comprises a rack, a roller rotationally installed on the rack, a breathable pattern cylinder arranged outside the roller, wherein an air suction cylinder is installed between the roller and the breathable pattern cylinder, a plurality of axially-arranged air channel holes are evenly distributed in the air suction cylinder, a row of air suction holes corresponding to each air channel hole are formed in the outer wall of the air suction cylinder, the air suction holes are in communication with the air channel holes, a rotating shaft core for gas and a rotating shaft core for water are arranged at two ends of the roller correspondingly, a rotating joint for gas is connected to the rotating core shaft forgas, a rotating joint for water is connected to the rotating core shaft for water, water channel holes are formed in the air suction cylinder and in communication with the rotating core shaft for gas,one end of each air channel hole is connected with a vacuum flow control mechanism, and the vacuum flow control mechanisms are in communication with the rotating shaft core for gas.

Description

technical field [0001] The invention relates to a synthetic leather processing technology, more specifically, it relates to a vacuum embossing machine for PU synthetic leather. Background technique [0002] Existing synthetic leather adopts embossing process in the production process, and uses embossing equipment to extrude on production materials such as PU, and forms texture patterns on the production materials through steel wheels, nickel wheels, silica gel wheels, etc. on the equipment. This embossing process needs to bear a pressure of 3kg per square centimeter of the production material, which will easily cause the thickness of the synthetic leather material to decrease and the hand feel to become stiff. Subsequent kneading process must be used for processing, which will increase production costs, and the kneading after adding chemical additives will produce a large amount of industrial wastewater. To sum up, the embossing operation of PU and other production material...

AI Technical Summary

Problems solved by technology

[0003] The invention overcomes the embossing operation of PU synthetic leather by extrusion, the embossing effect is not good, and reduces the shortage of product quality, and provides a vacuum embossing machine for PU synthetic leather. The PU synthetic leather adopts vacuum embossing The pattern is processed by this method, the effect of absorbing the pattern is good, and the phenomenon of texture rebound is not easy to appear, which is beneficial to improve the product quality

Images