Technological Innovation Helps The Development Of Shoemaking Industry

　　 shoes Industry is a business card in Wenling. From coal stove baking to computer operation, shoe making technology realizes magnificent transformation, from injection shoes to half of the country to women's shoes, children's shoes and sports shoes, and from flower shoes to European Union, America and Africa. Great changes have taken place in shoe industry in Wenling.

Chen Guangan, chairman of green apple sporting goods Co., Ltd.:

The transformation of shoemaking technology starts with machine transformation. From manual operation to machine operation to the present digital production, it can be said that nowadays, the higher shoemaking technology has been mastered by most Wenling enterprises, and the shoes made by Wenling shoe manufacturers are no worse than those of Guangzhou and Jinjiang.

　 Manual manufacturing is inefficient and poor quality.

As chairman of Zhejiang green apple sporting goods Co. Ltd., Chen Guangan has been dealing with shoemaking since he was young.

"My father can be said to be the first person to produce shoes in Wenling." Chen Guangan said that although the size of the shoe factory was not large at that time, "though the sparrow was small, the five organs were all intact", Chen Guangan helped him in his home and knew every type of work in the shoe industry.

Speaking of the past history of shoemaking, Chen Guangan remembers vividly. "Before 2000, the footwear industry in Wenling was developing vigorously, but the technology was not very good. In order to better fit the upper and sole, a warm process is needed to soften the upper and sole of the glue. However, the tools used for heating were not the current oven, but the briquette stove. Chen Guangan said that a two level iron shelf was set up on the coal briquet stove. The first floor had sole, second shoes, two people were in charge of a coal ball stove, one was gluing glue, and one was gluing the upper and sole. "At that time, a factory building over 50 meters long looked at the past, more than 20 rows of briquettes lined up, burning coal, and the whole room was the same as the stove, and the workers had to work naked."

"However, because the temperature of the briquettes is unstable, the softness of the upper is not stable, and the adhesive can only be felt by the workers. Not only that, but now it is not necessary to scribe and brush again. At that time, the glue was also felt, and the glue was often brushed up or brushed low. Moreover, because of the limitation of equipment, the shoe making could only be produced by artificial one, instead of using mass production line now. "

"The technology is unstable, the shoes are easy to degum, and the quality of Wenling shoes is obvious at that time." Chen Guangan said, "and before 2000, many of the soles of Wenling shoes were made by gluing the collected waste oil and the sole of the shoe with injection molding machine for the two time. Such soles are hard, smelly, non skid and easy to break. Shoes in Wenling are called "shoe", soles. Material Science There are also a lot of reasons. "

Green apple molding line length Li Zhongfeng:

Compared with the previous production process, since the introduction of the assembly line, the production process and materials of Wenling shoe industry have been constantly innovating, both in terms of product quality and production efficiency.

　 Technological innovation saves time and effort and quality.

Li Zhongfeng, 33 years old, is a molding line in green apple sporting goods company. When he began to engage in shoemaking, the heating of the coal stove has basically become a past tense.

Around 2003, the drying lamp, commonly known as "little sun", replaced the coal stove. After that, the constant temperature oven appeared to make the process more efficient.

After 2005, Shoemaking enterprises There was a simple assembly line, and no longer needed to produce shoes one by one, it saved a lot of time. Today, the technology mature pipeline has become the main production force of the major shoe enterprises.

"Take the forming part of this process, dozens of processes such as white glue, front assistance, waist pulling, pressing, backing, marking and softening are almost carried out on the assembly line. Except for a few processes that require manual operation, most of them can be operated by computers. Li Zhongfeng said, "designing the program on the computer and controlling the production line by computer not only improves the production efficiency, but also improves the product quality."

In addition to more advanced technology, shoemaking technology has become more rigorous in recent years. In order to increase the wear resistance, skid resistance, the viscosity of the upper and sole of shoes, the situation of only one brush before and once through the oven has changed. Li Zhongfeng said, the whole process down, glue to brush two times, oven four times.

Not only that, most of the previous vamp was. printing Now, the technology of point drill, electric embroidery and hem is used. The sole material used in the past two times is now light or cheap, or skid resistant... PVC, TPR, EVA, PU, rubber and other materials instead.

In the past, sewing machines were used for household sewing machines, and needle jumping often occurred. Now the industrial sewing machine is equipped with digital computers, which can not only increase the output of 30%~50%, but also manually, a computer can usually top 6 to 10 people. In addition, the shoe making enterprises generally use the electronic speed governing motor and servo motor to replace the traditional industrial sewing machine clutch motors, or to transform the main energy consuming equipment. Through comparison tests, the electricity saving is generally over 30%.