Spike with thick cap used in pneumatic gun

Abstract

The invention provides a spike with a thick cap used in a pneumatic gun, belonging to the field of shoe making. The spike with a thick cap comprises an elongated and straight spike body and a plastic cap. One end of the spike body is sharpened and the other end of the spike body has an expanding spike head. The plastic cap fits into the close-to-spike head side of the spike body in tight joint, and the spike head is stuck in an upper end of the plastic cap. An axially through return hole is provided in the center of the plastic cap. The spike body goes through the return hole. The radial dimension of the return hole is the same as that of the spike body and is smaller than that of the spike head. The spike has advantages of high structural strength and break-off difficulty, a large pressure area and a small using amount and prevention of left spikes in shoes, improving the quality of shoes.

Description

technical field [0001] The invention relates to the field of shoemaking, in particular to a thick cap shoe spike for a steam pressure gun. Background technique [0002] At present, in the field of shoemaking, the upper and the inner bottom are combined according to the shape of the shoe last to ensure that the finished shoe is shaped. Use cleats to secure when assembling. In the initial stage of the development of the shoemaking industry, special nails were usually used for shoe nails, but the special nails were replaced by general-purpose steam-pressure gun nails due to their inconvenience and high price. General-purpose steam-pressure gun nails are non-professional shoe-making nails , the shape of the universal steam pressure gun nail is similar to a staple, and the two ends of the nail body are bent ends at right angles. When in use, the steam pressure gun will drive the universal steam pressure gun nail into the connection. Clear to ensure that the user's feet are not ...

AI Technical Summary

Problems solved by technology

[0003] 1. Due to structural reasons, the existing steam pressure gun nails are easy to break when nailing and pulling out the nails. After the nails are broken, the nail heads cannot be taken out, which is easy to scratch the user's feet.

[0004] 2. Due to the small size of the existing steam pressure gun nails and the small pressure area of ​​a single steam pressure gun nail, the number of nails that need to be driven is large during the production process, and missing pulls are prone to occur during the cleaning process. Therefore, it is necessary to Add at least two inspection processes, that is, the manual nail testing process and the nail testing process, but this not only increases the production cost, is time-consuming and laborious, but also because there is a waist iron in the shoe, only the toe of the shoe can be detected when the nail is tested, and the human hand touches the nail. Nails are easy to miss, resulting in unsatisfactory nail inspection results

[0005] 3. Due to the light weight of the existing steam pressure gun nails, it is easy to fall into the upper surface of the shoe, and cannot be taken out after the shoe is finished, which seriously affects the quality of the finished shoe

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