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A manufacturing method and production line of needle-punched felt for thermoplastic resin

A thermoplastic resin, needle-punched felt technology, applied in chemical instruments and methods, layered products, lamination devices, etc., can solve problems such as low strength and variability, and achieve high porosity, tight step connection, and compact process design. reasonable effect

Active Publication Date: 2016-03-09
ZHEJIANG LIANYANG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There is no thermoplastic fiberglass fabric as the base fabric in the existing needle felt structure for thermoplastic resin, and it is purely carded with thermoplastic chopped glass fiber and needle punched.
Has the disadvantages of low strength and variability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • A manufacturing method and production line of needle-punched felt for thermoplastic resin

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Embodiment Construction

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] A method for manufacturing needle felt for thermoplastic resins of the present invention comprises the following steps: the thermoplastic fiberglass fabric is passively unrolled by an unwinding shaft, the thermoplastic chopped glass fibers are placed on the creel behind the unwinding device, and The yarn guide tube is transported to the chopping device above the unwinding device; the chopping device is composed of a knife roller, a leather roller, and a mace. The knife roller is equipped with a blade. The tooth sticks are evenly scattered, and fall on the upper surface of the thermoplastic fiberglass fabric on the unwinding device below; the thermoplastic fiberglass fabric covered with thermoplastic chopped glass fibers enters the needle punching device through the conveyor belt, and the needle punching device is formed by the upper needle. Board, lower needle bed...

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Abstract

The invention relates to a manufacturing method of a needled felt for thermoplastic resin. The manufacturing method comprises the following steps: uncoiling a thermoplastic glass-fiber fabric through an uncoiling shaft, placing thermoplastic short-cut glass fibers on a yarn frame behind an uncoiling device, and conveying the thermoplastic short-cut glass fibers to a short cutting device above the uncoiling device through a yarn guide pipe of the yarn frame; uniformly scattering the thermoplastic short-cut glass fibers through a rotating mace to enable the scattered thermoplastic short-cut glass fibers to fall on the upper surface of the thermoplastic glass-fiber fabric on the uncoiling device below; and conveying the thermoplastic glass-fiber fabric with the thermoplastic short-cut glass fibers into a needling device, an edge cutting device and a coiling device through conveying belts to obtain the finished product. The prepared needled felt for thermoplastic resin adopts the thermoplastic glass-fiber fabric as basic cloth, and the thermoplastic short-cut glass fibers are combined with the thermoplastic glass-fiber fabric in a needling manner, so that the prepared needled felt for thermoplastic resin has advantages of high longitudinal and transverse strength, low probability of deformation, high porosity, rapid melting and soaking of thermoplastic resin and the like. The production line has advantages of compact and reasonable flow design and convenience in operation.

Description

technical field [0001] The invention relates to the field of manufacturing composite materials, in particular to a manufacturing method and production line of needle-punched felt for thermoplastic resin. Background technique [0002] Glass fiber mat reinforced thermoplastic composite (GMT) is a plate structure material with thermoplastic resin as the matrix and glass fiber mat as the reinforcing skeleton. It has the advantages of good toughness, high strength, low density, excellent corrosion resistance and heat resistance, good formability, waste recycling and long-term storage, etc. It is a green environmental protection material with low energy consumption and no environmental pollution. [0003] At present, the glass fiber felt in the GMT sheet is a raw silk felt made of E glass fiber treated with a special sizing agent for polypropylene, a coupling agent, etc., and needle punched. The domestic supply of needle punched felt reinforced with thermoplastic resin is not yet ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B37/02B32B38/18B32B7/08
Inventor 蔡正杰李江蔡永明陈晓杰
Owner ZHEJIANG LIANYANG NEW MATERIAL
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