Perpendicular nicking through method for strap sandal inner sole

Abstract

The invention discloses a perpendicular nicking through method for a strap sandal inner sole. The method includes the steps of marking an upper strip position line in the position of an inner sole, which corresponds to an upper strip according to a lasting position model; punching a plurality of holes with a cylindrical punch of 0.5mm in the start and end points of the upper strip; cutting off the portion of the inner sole, which is between adjacent two holes with a leather cutting knife, wherein the width of the hole is equal to the thickness of the upper strip and the length of the hole is equal to the width of the upper strip; milling a slope slot as an upper accommodating slot in the back surface of the inner sole with a grinder, wherein the depth of the slot is 1-1.2mm and the depth of the deepest portion is smaller than or equal to 1 / 2 of the thickness of the inner sole. According to the method, the junction of the sandal inner sole and the upper strip covering portion can be closely fitted in with no position difference, a protruded bar of the inner sole can be kept balanced, and lines at auxiliary openings can be closely stitched. The strap sandal inner sole perpendicular nicking through method solves the problem of the deficiencies of the unevenness of the protruded bar of the inner sole and the looseness of stitching of lines at the auxiliary openings of existing strap sandals due to the fact that the upper strip is pressed between an outer sole and a position difference at the junction between the exposed inner sole and the upper strip covering portion is caused.

Description

technical field [0001] The invention relates to a method, in particular to a method for vertically piercing the insole of striped sandals. Background technique [0002] Shoes are things made of leather, cloth, wood, grass, plastic silk, etc. that are worn on the feet and land on the ground when walking. Shoes have a long history of development. About 5,000 years ago in the Yangshao culture period, the most primitive shoes made of animal skins appeared. Shoes are a tool for people to protect their feet from injury. The earliest people invented fur shoes in order to overcome special circumstances and prevent their feet from being uncomfortable or injured. Shoes have developed to the present, and they have formed what they are now. Shoes of various styles and functions can be seen everywhere. In traditional Chinese wedding customs, shoes are a kind of mascot, which is a symbolic folk custom produced by the pairing of shoes and the homonym of "shoe" and "kai". Some are used...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned existing strip sandals because the upper is sandwiched between the outer bottom and the inner bottom, so that there is a level difference at the junction of the exposed inner bottom and the upper covered part, resulting in the existence of a gap in the inner bottom. In order to solve the problems of uneven inner sole and poor sealing of slit line, a vertical engraving method for strip sandal inner sole is designed, which makes the junction of sandal inner sole and upper covering part closely fit , there will be no position difference, the inner sole is balanced and the slit line is tightly sealed, which solves the problem that the exposed inner sole and the upper are sandwiched between the outer sole and the inner sole of the existing strap sandals. There is a level difference at the junction of the strip covering parts, which leads to the defects of uneven inner bottom and loose sealing of the slit line in the inner bottom.