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Skeleton-free conveyor belt for roller conveyor and preparation method of skeleton-free conveyor belt

A conveyor, skeletonless technology, applied in conveyors, transportation and packaging, conductive coatings, etc., can solve problems such as high noise, reduce noise, facilitate installation and disassembly, and avoid low elongation.

Active Publication Date: 2020-02-04
SHANGHAI YONGLI TRANSPORTATION SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of clamping parts and high noise during transportation in the prior art, the purpose of the present invention is to provide a skeleton-free conveyor belt for roller conveyors, and use thermoplastic polyurethane elastomer (TPU) with good creep resistance as the Skeletonless conveyor belt replaces the original lightweight conveyor belt fabric + polymer material composite structure. When used with a roller conveyor, a continuous plane is formed on its surface to avoid the phenomenon of jamming. At the same time, due to the continuity of the plane, it can also Reduce the noise during the conveying process, and the skeletonless conveyor belt has a certain stretching performance, which is easy to install and disassemble

Method used

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  • Skeleton-free conveyor belt for roller conveyor and preparation method of skeleton-free conveyor belt
  • Skeleton-free conveyor belt for roller conveyor and preparation method of skeleton-free conveyor belt

Examples

Experimental program
Comparison scheme
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preparation example Construction

[0033] The preparation method of the skeletonless conveyor belt for the above-mentioned roller conveyor comprises the following steps:

[0034] The first step: configure the conductive solution according to the ratio;

[0035] Step 2: After the polyester fabric is dried and shaped at 180-200°C, the surface is uniformly coated with the above-mentioned conductive solution, and the coating density is 60-80g / m 2 ,drying;

[0036] Step 3: After uniform mixing of creep-resistant TPU material and TPU color masterbatch, extrude and cast on the surface of the above-mentioned conductive primer layer through extrusion with a melting temperature of 200-210°C, and tear off the polyester fabric after cooling and setting to obtain the product.

Embodiment 1

[0039] The conductive solution is composed of 40% carbon nanotube composite TPU masterbatch, 30% dimethylformamide and 30% methyl ethyl ketone in terms of mass percentage, and the carbon nanotube and TPU in the carbon nanotube composite TPU masterbatch The mass ratio is 1:8. , The creep-resistant TPU surface layer is a mixture of 97% creep-resistant TPU material and 3% TPU color masterbatch, and is obtained by melt extrusion casting at 200 ° C on the surface of the conductive primer layer.

Embodiment 2

[0041] The conductive solution is composed of 50% carbon nanotube composite TPU masterbatch, 25% dimethylformamide and 25% methyl ethyl ketone in terms of mass percentage, and the carbon nanotube and TPU in the carbon nanotube composite TPU masterbatch The mass ratio is 1:9, and the anti-creep TPU surface layer is a mixture composed of 98% anti-creep TPU material and 2% TPU color masterbatch, and is obtained by melt extrusion casting on the surface of the conductive primer at 210 °C .

[0042] Such as figure 1 Shown, test the variation curve of the tensile stress of the creep-resistant TPU surface material in Examples 1 and 2 with time, when the stress varies with time under the fixed extension situation, the smaller the variation with time, the better the creep resistance of the material is, It can be seen that the creep resistance performance of Example 1 is obviously better than that of Example 2.

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PUM

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Abstract

The invention discloses a skeleton-free conveyor belt for a roller conveyor and a preparation method of the skeleton-free conveyor belt. The skeleton-free conveyor belt includes a conductive undercoatlayer and a creep-resistant TPU surface layer, and has a thickness of 1.0-2.0 mm, wherein the conductive undercoat layer is obtained through coating of a conductive solution on the surface of polyester fabric and drying; and a creep-resistant TPU material is mixed with TPU masterbatch, and then extrusion and casting are performed on the surface of the conductive undercoat layer so as to obtain the creep-resistant TPU surface layer. The preparation method comprises the steps: performing drying shaping on the polyester fabric, coating the surface of the shaped polyester fabric evenly with the conductive solution, performing drying, performing extrusion and casting so as to form the creep-resistant TPU surface layer on the surface of the conductive undercoat layer, and tearing off the polyester fabric. An original composite structure of lightweight conveyor belt fabric and a polymer material is replaced, and a continuous plane can be formed on the surface of the roller conveyor when theconveyor belt is cooperated with the roller conveyor, so that the phenomenon of jamming is avoided, and noises during transportation is also reduced; and conductive design is adopted by the bottom surface, so that charge accumulation caused by high-speed transfer of the roller conveyor is avoided effectively during use.

Description

technical field [0001] The invention belongs to the technical field of conveyor belt manufacture, and in particular relates to a frameless conveyor belt for a roller conveyor and a preparation method thereof. Background technique [0002] As one of the conveying equipment, the roller conveyor can be used in combination with other conveying equipment and mechanical equipment to form a large-scale automatic conveying system such as branching and merging due to its simple structure, large conveying capacity, impact resistance, stable operation, and diversified conveying methods. The industry application is more and more extensive. However, there are also certain defects in the use process, such as: the environmental noise is too large when the roller conveyor is conveying, and the small parcels are easy to get stuck when conveying. Contents of the invention [0003] In order to solve the problem of clamping parts and high noise during transportation in the prior art, the pur...

Claims

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Application Information

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IPC IPC(8): C08L75/04C09D5/24C09D175/04B65G15/32
CPCB65G15/32C08J2375/04C08J2475/04C08L75/04C09D5/24C09D175/04C08K3/041
Inventor 刘晶晶
Owner SHANGHAI YONGLI TRANSPORTATION SYST CO LTD