Sewing process for shoe uppers and shoe soles of safety shoes

A technology for safety shoes and shoe uppers, applied in footwear, adhesive type, lamination and other directions, can solve the problems of easy generation of gaps, poor structural stability of safety shoes, inability to ensure the tightness of docking, etc., to ensure positional stability. , to ensure the stability of sewing, the effect of being conducive to use and promotion

Inactive Publication Date: 2019-06-04
저지앙하이나슈즈컴퍼니리미티드
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing sewing process of safety shoes mostly involves punching and threading directly after the upper and the sole are docked. In this way, the inner structure of the upper is relatively rough, and the wearing comfort is poor, and there is no pre-positioning, so it is easy to punch holes. The offset and dislocation during operation will cause inaccurate positioning of the upper and the upper of the shoe, affecting the outer tube, and the tightness of the butt joint cannot be guaranteed after sewing is completed, and gaps are likely to occur. Not only the safety shoe structure is poor in stability, but also the safety protection effect is not good. The sewing process needs further improvement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0059] As preferably, the preparation method of described self-adhesive colloid comprises the steps:

[0060] Q1. Weigh each component raw material according to the mass percentage, and set aside;

[0061] Q2. Add water-based natural rubber latex and ethylene-vinyl acetate copolymer emulsion into a stirring container, and stir evenly for 15 minutes to 20 minutes at a rate of 25 rpm to 30 rpm to obtain a mixed glue;

[0062] Q3. Heat the mixed glue solution to 40°C to 42°C, then add defoamer and preservative, and stir evenly for 5 minutes to 8 minutes;

[0063] Q4. Pour it into a storage tank at 35 degrees Celsius to 38 degrees Celsius, and cool it naturally to get a self-adhesive colloid.

[0064]The sewing process of the upper and the sole of a safety shoe provided by the present invention can improve the comfort by placing the inner lining inside the upper, and punching holes after sequentially bonding and positioning can ensure positional stability and avoid Offset and di...

Embodiment 1

[0066] A safety shoe upper and sole sewing process, the safety shoe upper and sole sewing process comprises the following steps:

[0067] P1. Shear forming: cut the upper and sole, and reserve 4 mm width at the edge;

[0068] P2. Lining fixation: Apply self-adhesive colloid on the surface of the inner lining, stick it to the inside of the upper, and cut and trim along the edge of the upper;

[0069] P3. Edge trimming: Thinning the back and front of the upper and sole edge along a 45-degree angle to form a triangular edge with a width of 3 mm to 4 mm;

[0070] P4. One-time adhesion: apply self-adhesive colloid on the triangular edge of the upper and sole, and then butt and press;

[0071] P5. Punching: On the upper and sole after the first adhesion, in the adhesion position, use a punch to punch holes with a distance of 3 mm to 4 mm, and continue to operate along the circumferential direction;

[0072] P6. Suture: Select the appropriate thread, and then pass through the punch...

Embodiment 2

[0095] A safety shoe upper and sole sewing process, the safety shoe upper and sole sewing process comprises the following steps:

[0096] P1. Shear forming: cut the upper and sole, and reserve 4 mm width at the edge;

[0097] P2. Lining fixation: Apply self-adhesive colloid on the surface of the inner lining, stick it to the inside of the upper, and cut and trim along the edge of the upper;

[0098] P3. Edge trimming: Thinning the back and front of the upper and sole edge along a 45-degree angle to form a triangular edge with a width of 3 mm to 4 mm;

[0099] P4. One-time adhesion: apply self-adhesive colloid on the triangular edge of the upper and sole, and then butt and press;

[0100] P5. Punching: On the upper and sole after the first adhesion, in the adhesion position, use a punch to punch holes with a distance of 3 mm to 4 mm, and continue to operate along the circumferential direction;

[0101] P6. Suture: Select the appropriate thread, and then pass through the punch...

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Abstract

The invention discloses a sewing process for shoe uppers and shoe soles of safety shoes. The sewing process for shoe uppers and shoe soles of safety shoes comprises the following steps: P1, carrying out shearing forming; P2, carrying out lining fixing; P3, carrying out edge trimming; P4, carrying out first-time bonding; P5, carrying out punching; P6, carrying out thread sewing, namely, selecting the thread with the suitable model number, and enabling the thread to sequentially pass through the punched holes for realizing the thread sewing operation; P7, carrying out second-time bonding; and P8, carrying out drying. For the sewing process for the shoe uppers and the shoe soles of the safety shoes provided by the invention, due to the placement of the linings adhered inside the shoe uppers,the comfort can be improved, punching is carried out after position fixing through the first-time bonding, so that the stability of the position can be guaranteed, the deviation dislocation can be avoided, meanwhile, filling sizing is carried out through coating of self-adhesive glue, so that the sewing stability can be guaranteed, the generation of gaps is avoided, then the stability of sewing ofthe safety shoes is greatly improved, the existing process is improved, and the use and popularization are facilitated.

Description

technical field [0001] The invention relates to the technical field of safety shoes sewing, in particular to a safety shoe upper and sole sewing process. Background technique [0002] In the current work and production, safety shoes need to be worn in some working environments to ensure the safety of workers. However, the existing safety shoes structure is mostly made by splicing the upper and the sole, which requires sewing operations. . [0003] However, the existing sewing process of safety shoes mostly involves punching and threading directly after the upper and the sole are docked. In this way, the inner structure of the upper is relatively rough, and the wearing comfort is poor, and there is no pre-positioning, so it is easy to punch holes. The offset and dislocation during operation will cause inaccurate positioning of the upper and the upper of the shoe, affecting the outer tube, and the tightness of the butt joint cannot be guaranteed after sewing is completed, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A43B9/02A43B9/12B32B37/12B32B37/10C09J107/02C09J123/08
Inventor 董巢弟
Owner 저지앙하이나슈즈컴퍼니리미티드
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