Tightening edge-upturning mechanism of shoe upper grabbing machine and tightening upturning method

Abstract

The invention provides a tightening edge-upturning mechanism of a shoe upper grabbing machine and a tightening edge-upturning method and belongs to the technical field of machinery. By the adoption of the tightening edge-upturning mechanism of the shoe upper grabbing machine and the tightening edge-upturning method, the problems that an existing shoe upper grabbing machine is low in tightening edge-upturning efficiency and low in rate of finished products are solved. The tightening edge-upturning mechanism of the shoe upper grabbing machine is characterized by comprising a tightening block, a finger pushing block, a finger pressing plate and an edge covering strip, wherein the finger pressing plate is arranged above the finger pushing block, the upper end of the edge covering strip covers the front end portion of the finger pressing plate, the lower end of the edge covering strip covers the front end portion of the finger pushing block, and the finger pushing block is connected with the tightening block in a sliding mode. According to the tightening edge-upturning mechanism of the shoe upper grabbing machine and the tightening edge-upturning method, a shoe upper is pressed on a shoe last through the tightening block, and the position of the shoe last is fixed; when the tightening edge-upturning mechanism is operated, the edge covering strip abuts against the shoe upper under the action of the finger pushing block and the finger pressing plate, shoe last pasting, stretching and edge upturning of the shoe upper are achieved under the linkage of the finger pushing block and the finger pressing plate, and the shoe upper and a insole board of a shoe are pressed and fixed together in an adhesion mode. The tightening edge-upturning mechanism of the shoe upper grabbing machine is simple in structure, convenient to operate, good in tightening effect, shoe last pasting effect and adhesion effect, and capable of preventing the insole board from being squeezed in the process of shoe last pasting.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to a leather product machinery, in particular to a tightening and flanging mechanism and a tightening and flanging method of a shoe upper grasping machine. Background technique [0002] Shoes are indispensable daily necessities in daily life, and the production of shoes must go through many complicated processes before reaching the finished product. In the shoe production process, shoe upper grabbing is one of the essential processes in the shoemaking operation. Using the shoe upper grabbing machine can easily realize the mechanized production of the shoe upper grabbing process. [0003] When the existing upper grabbing machine grabs the upper, the upper cover is pressed on the shoe last, and the upper is pressed and glued. In the upper grabbing process, the upper needs to be tightened and stretched to remove or reduce wrinkles. , in order to achieve the purpose of sticking the las...

AI Technical Summary

Problems solved by technology

In this field, the stretching treatment of the middle side can be roughly divided into manual stretching and mechanical stretching directly manipulated by personnel. The quality of manual stretching and the speed of stretching depend entirely on the skills and experience of the operator. The efficiency is relatively low, and the mechanical stretching can improve the work efficiency to a certain extent due to the high requirements of the program control, but because the stretching process cannot be automatically adjusted, the position of the upper cover on the shoe tree will be different. When the offset is not in place, the stretching effect is not ideal, and it is easy to cause damage to the upper during the stretching process

While grasping the upper, it is also necessary to pressurize and bond the upper and the midsole, and use hydraulic transmission as a power transmission, so that the edge block can be pressed on the side of the shoe, and the finger push block can be pressed on the midsole of the shoe. , so as to make the upper closely adhere to the last and firmly stick to the midsole. However, when this type of finger push block exerts pressure on the upper, it is easy to squeeze and deform the midsole of the shoe. If it does not directly press the upper The foot exerts pressure, and it is easy to cause the shoe upper and the shoe tree to not fit well enough, which cannot meet the requirements of the shoemaking process

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