Complete device for manufacturing polytetrafluoroethylene (PTFE) short fiber in acupuncture comb-cutting method and method thereof

A technology of PTFE and complete sets of equipment, which is applied in the field of equipment for manufacturing short fibers, can solve the problems of difficult manufacturing and processing, high maintenance cost, and high precision requirements, and achieve the effects of low production price, low maintenance, and low investment

Active Publication Date: 2012-06-27
常州华福环境科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the fineness of the fiber is determined by the distance between the blades on the rolling knife, only a knife pattern with a small distance can produce finer fibers. However, the smaller the knife pattern, the more difficult it is to manufacture and process, and the precision requirements The higher the manufacturing cost is quite high
So the production of finer fibers is limited
During the manufacturing process, the knives of the embossing hob are required to be kept sharp, and a slight passivation will affect the production. Therefore, the rolling knives nee

Method used

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  • Complete device for manufacturing polytetrafluoroethylene (PTFE) short fiber in acupuncture comb-cutting method and method thereof
  • Complete device for manufacturing polytetrafluoroethylene (PTFE) short fiber in acupuncture comb-cutting method and method thereof
  • Complete device for manufacturing polytetrafluoroethylene (PTFE) short fiber in acupuncture comb-cutting method and method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Such as figure 2 , 3 , shown in 4, the needle punching and carding method of the present invention manufactures the PTFE short fiber complete set of equipment and method thereof, comprises the unwinding mechanism 1 that is wound with oriented film that is arranged successively, the first pair of rubber holding rollers 2, the pair of oriented film A pair of piercing needle rollers 3 engaged up and down for puncturing, the second pair of rubber holding rollers 4, combing rollers 5 for combing the punctured oriented film into long filaments, the third pair of rubber holding rollers 6, and the filaments Concentrator 7, traversing device 8 and winding mechanism 9 for winding filament bundles, piercing needle roller 3 has a roller body 3-1, and the outer circumferential surface of roller body 3-1 has piercing steel needles closely arranged Needle 3-2, puncture steel needle 3-2 diameter is 0.3mm, needle length is 15mm, needle tip area is 0.0005mm 2 , the row pitch of punctu...

Embodiment 2

[0042] Such as figure 2 , 3 , shown in 4, the needle punching and carding method of the present invention manufactures the PTFE short fiber complete set of equipment and method thereof, comprises the unwinding mechanism 1 that is wound with oriented film that is arranged successively, the first pair of rubber holding rollers 2, the pair of oriented film A pair of piercing needle rollers 3 that mesh up and down, a second pair of rubber gripping rollers 4, a carding roller 5 that combs the punctured oriented film into long filaments, and a third pair of rubber grips that are punctured and arranged above and below the oriented film. Holding roller 6, bundler 7 that bundles filaments, traversing device 8 and winding mechanism 9 that winds filament bundles, piercing needle roller 3 has roller body 3-1, the outer circumference of roller body 3-1 There are closely arranged puncture steel needles 3-2 on the surface, the diameter of puncture steel needles 3-2 is 0.4mm, the needle len...

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Abstract

The invention relates to a device for manufacturing a short fiber, in particular to a complete device for manufacturing a polytetrafluoroethylene (PTFE) short fiber in an acupuncture comb-cutting method and a method thereof. The complete device comprises an oriented film unwinding mechanism, a pair puncture needle roller for puncturing an oriented film, a comb-cutting roller combing and cutting the punctured oriented film into filaments, a buncher bunching the filaments, a traversing gear and a winding mechanism which are all arranged in sequence, wherein the winding mechanism is used for winding a filament bundle. Compared with a film breaking processing process widely adopted at present, the complete device for manufacturing the PTFE short fiber in the acupuncture comb-cutting method and the method thereof have the advantages that the process is simple, reasonable and reliable, operation is convenient, energy consumption is little, efficiency is high, and the device and main parts are low in manufacturing cost, little in investment and low in maintenance cost. The PTFE short fiber with thinner fineness can be produced, the average fineness can reach 2.5dtex at minimum, and production varieties are expanded.

Description

technical field [0001] The present invention relates to a kind of equipment for making short fiber, especially a kind of complete set of equipment and method for making PTFE short fiber by needle punching and carding method. Background technique [0002] Polytetrafluoroethylene (PTFE) has the incomparable advantages of other plastics such as high temperature resistance, acid and alkali corrosion resistance, and hydrolysis resistance. It can be made into high temperature resistant filter material by making it into short fibers, and it is a corrosion resistant filter material in the chemical and pharmaceutical industries. , PTFE non-woven fabrics, etc., are increasingly being widely used. [0003] There are two types of methods for manufacturing PTFE short fibers at present. The first type is the melt spinning method. Because the fluidity of PTFE in the molten state is extremely poor, it is not possible to use the usual melting and spinning method to make short fibers. Instea...

Claims

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Application Information

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IPC IPC(8): D01D13/00D01D5/42
Inventor 阙福明潘建农阙建福
Owner 常州华福环境科技股份有限公司
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