Waist belt and preparation method thereof

A belt and an integrated technology, applied in the field of belts or belts, can solve laborious and time-consuming problems, achieve strong bending and stretching performance, reduce sewage discharge and garbage production

Inactive Publication Date: 2012-07-04
王晓文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to solve the time-consuming and labor-intensive problems existing in the raw materials used in traditional belts and their production and processing processes for a long time, and provide a one-time molding with an injection molding machine. The belt holes are not easy to elongate and are resistant to bending and stretching. Belt with better performance and less deformation and preparation method thereof

Method used

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  • Waist belt and preparation method thereof
  • Waist belt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1) Mix TPU (polyurethane) with the required pigments to obtain a mixed material.

[0045] 2) Put the mixed material into the drying material bucket, and dry it. The drying temperature is 80° C., and the drying time is 3 hours. The dried mixed material is obtained for later use.

[0046] 3) mold is fixed on the injection molding machine, and described injection molding machine is 150 tons, and injection volume is 200g, and the used material of mold is steel, preferably 718# steel.

[0047] 4)) Set various parameters of the injection molding machine and set them aside; the various parameters of the injection molding machine are set as follows:

[0048] Stage 1: 190°C; Stage 2: 180°C; Stage 3: 175°C; Stage 4: 170°C; Stage 5: 170°C; Pressure: 75MPa; Speed: 40mm / s; Injection time: 15s; Back pressure: 6MPa; storage position: 130mm.

[0049] 5) Put the dried mixed material into the storage tank of the injection molding machine, form the main body through plasticization, inje...

Embodiment 2

[0053] Similar to Example 1, the difference is that the artificial rubber material adopts EVA (ethyl acetate); the temperature for putting the mixed material into the drying barrel for drying is 90° C., and the drying time is 2.5 hours; the injection molding machine is 350 tons , the injection volume is 400g; the various parameters of the injection molding machine are set as follows: the first section: 200°C; the second section: 165°C; the third section: 185°C; the fourth section: 180°C; the fifth section: 160°C ℃; pressure: 70MPa; speed: 50mm / s; injection time: 20s; back pressure: 5MPa; storage position: 100mm.

Embodiment 3

[0055] Similar to Example 1, the difference is that the artificial rubber material adopts PVC (polyvinyl chloride); the temperature for putting the mixed material into the drying barrel for drying is 70° C., and the drying time is 4 hours; the injection molding machine is 150 tons, The injection volume is 650g; the various parameters of the injection molding machine are set as follows: first section: 215°C; second section: 195°C; third section: 195°C; fourth section: 160°C; fifth section: 165°C ;Pressure: 80MPa; Speed: 35mm / s; Injection time: 30s; Back pressure: 3MPa; Storage position: 110mm.

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Abstract

The invention provides a waist belt and a preparation method thereof, and relates to a belt or the waist belt, and provides the waist belt which is formed in one step by an injection molding machine and has the advantages of difficult extension of belt holes, better bending and stretching resistance and difficult deformation and the preparation method thereof. The waist belt is a one-step molded belt made of artificial rubber, wherein the artificial rubber can be TPU, EVA, PVC and the like. The method comprises the following steps of: mixing an artificial rubber material and required pigment to obtain a mixed material; putting the mixed material into a material drying barrel for drying to obtain the dried mixed material for later use; fixing a die on the injection molding machine; setting each parameter of the injection molding machine for later use; putting the dried mixed material into a storage barrel of the injection molding machine to form a body through plasticizing, ejecting, cooling and other molding processes; and cleaning and airing the body to obtain the waist belt. The waist belt and a waist belt buckle can be assembled into a waist belt finished product.

Description

technical field [0001] The invention relates to a belt or a belt, in particular to a belt and a preparation method thereof. Background technique [0002] General belts or belts use leather, synthetic leather, etc. as raw materials. The existing belt is bonded layer by layer, the belt hole is easy to elongate, the bending resistance is poor, and it is easy to deform. Generally, the production process of the belt is: striping-gluing-fitting-trimming-tail shaping-punching belt holes-grinding-edge-car edge-calendering-embossing-oiling-drying-packaging. [0003] Tannery and fur industry is the third most polluting industry in the light industry after papermaking and brewing industry. Tannery wastewater is not only a large amount, but also a complex and high-concentration organic wastewater, which contains a lot of lime, dyes, proteins, Toxic and harmful substances such as salt, grease, ammonia nitrogen, sulfide, chromium salt, hair, leather dregs, mud and sand. CODCr, BOD5, su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/04C08L23/08C08L31/04C08L27/06A41F9/00B29C45/76
Inventor 王晓文张朝明董崇椿
Owner 王晓文
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