Conveying belt and preparation method thereof

A conveyor belt and para-aramid fiber technology, applied in the field of conveyor belt and its preparation, can solve the problems of insufficient hardness, contaminated food, inconvenient cleaning, etc., and achieve the effects of high hydrolysis resistance, high production efficiency, and convenient cleaning

Active Publication Date: 2013-12-18
AA IND BELTING (SHANGHAI) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to solve the defects of contaminated food, inconvenient cleaning and insufficient hardness in the conveying belt in the prior art, and to provide a food hygiene and safety requirement, high hardness, wear resistance, tensile resistance, Conveyor belts without burrs

Method used

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  • Conveying belt and preparation method thereof
  • Conveying belt and preparation method thereof
  • Conveying belt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of preparation method of conveyor belt comprises the steps:

[0027] (1) Arrange the S-twisted para-aramid yarn and the Z-twisted para-aramid yarn next to each other in parallel; the distance between each para-aramid yarn is 7mm; the S-twisted para-aramid yarn and the Z-twisted pair The para-aramid yarn is twisted by 20 para-aramid spun yarns with an upper diameter of 1000D and a twist of 50. Stretch each para-aramid yarn with a 300g weight;

[0028] (2) The para-aramid yarn enters the extrusion die head through the guide wheel, and the polyether thermoplastic polyurethane is heated and melted at 190°C in the twin-screw extruder, and then extruded into the extrusion die head, mixed evenly and then calendered and extruded Pressing and integral molding in the molding wheel; before the polyether thermoplastic polyurethane enters the twin-screw extruder, it is dried in a dehumidification dryer at a temperature of 100°C for 2 hours, and finally reaches a moisture con...

Embodiment 2

[0030] A kind of preparation method of conveyor belt comprises the steps:

[0031] (1) Arrange S-twisted para-aramid yarn and Z-twisted para-aramid yarn next to each other in parallel; the distance between each para-aramid yarn is 10mm; S-twisted para-aramid yarn and Z-twisted The para-aramid yarn is twisted from more than 20 para-aramid spun yarns with a diameter of 3000D and a twist of 80; each para-aramid yarn is stretched with a 500g weight;

[0032] (2) The para-aramid yarn enters the extrusion die head through the guide wheel, and the polyether thermoplastic polyurethane is heated and melted at 205°C in the twin-screw extruder, then extruded into the extrusion die head, mixed evenly, and then calendered and extruded Pressing and integral molding in the molding wheel; before the polyether thermoplastic polyurethane enters the twin-screw extruder, it is dried in a dehumidification dryer at a temperature of 90°C for 2.5 hours, and finally reaches a moisture content of less ...

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Abstract

The invention discloses a conveying belt and a preparation method of the conveying belt. The method comprises the following steps of (1) arranging para-position aramid yarns in parallel, wherein the interval between the para-position aramid yarns is 7-10mm, and each para-position aramid yarn is stretched by force of 2.94N-4.9N; and (2) mixing, calendering, extruding, and integrally forming the arranged para-position aramid yarns and polyether-type thermoplastic polyurethane. The conveying belt provided by the invention conforms to the food hygiene and safety requirement, is high in hardness, is abrasion resistant, does not generate burr phenomenon, and is durable in stretching.

Description

technical field [0001] The invention relates to a conveyor belt and a preparation method thereof. Background technique [0002] Conveyor belts are widely used in cutting, deboning, slicing, mincing, freezing and packaging in the meat food processing industry. In order to ensure the safety and quality of food, different processes have different requirements, not only to reduce the pollution from the conveyor belt itself, but also to be resistant to weak acids, alkalis, and organic solvents to facilitate cleaning and maintenance of hygiene and safety. The rubber and plastics widely used in the market have the risk of plasticizer residue or precipitation, and the metal or plastic-steel chain plate has many pores and is difficult to clean, leaving meat residues, which poses a health and safety hazard. The production process of conventional conveyor belts is that polyurethane cloth is repeatedly coated, baked and laminated, which is not good in cutting resistance and easy to sti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C69/02C08L75/08C08L77/10B29L29/00
Inventor 涂木林涂国圣
Owner AA IND BELTING (SHANGHAI) CO LTD
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