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Rolling cutter type fibre bundle cut-off device

A technology of cutting device and fiber bundle, applied in the direction of forming non-bundle shape, which can solve problems such as complex structure

Inactive Publication Date: 2007-05-02
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, its structure is not only complicated, but also requires high processing accuracy, which greatly affects the workability of production and assembly.

Method used

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  • Rolling cutter type fibre bundle cut-off device
  • Rolling cutter type fibre bundle cut-off device
  • Rolling cutter type fibre bundle cut-off device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-17

[0088] The acrylic fiber bundle with a crimp number of 11 / 25mm, a single fiber fineness of 3.3dtex, and a fiber bundle fineness of 150ktex is wound on a cutter roll 20 with a diameter of 600mm as shown in FIG. 1, and pressed by The roller 30 presses the cutter to cut and obtains short fibers. The cutter support plate 22 made of carbon steel S25C for machine structure and the cutter 23 made of cemented carbide were used, and the distance between the pressing roller 30 and the blade of the cutter 23 was set to 5 mm.

[0089]In addition, the thickness of the cutter 23 and the cutter support plate 22, the taper angles of the tip and base of the cutter 23, the height of the taper 23b of the cutter 23, the total height of the cutter 23, the length of the cutter 23, The height of the cutter support plate 22, the surface roughness of the tapered surface of the tip and the tapered surface of the base end of the cutter 23, and the pitch P between adjacent cutters 23 were variously changed, ...

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Abstract

The present invention provided a roller cutter type fiber bundle-cutting device, cutting a fiber bundle in a good efficiency and in an equivalent length by a simple structure, and discharging cut short fibers smoothly. This roller cutter type fiber bundle-cutting device is provided by supporting a plurality of cutters 23 with cutter rollers 20 by fixing and installing the cutters by taking a prescribed pitch P in the circumferential direction of the rollers without protruding cutter blade stays 22 to the side surface in the pitch direction of the cutters 23. By winding the fiber bundle 1 on the cutter roller 20 and compressing the fiber bundle 1 with a compressing roller 30, the fiber bundle is cut at a prescribed length continuously by the cutters 23 at the same time. In order to discharge the cut short fibers easily, it is necessary that the thickness A of the cutter blade stay 22 and the thickness B of the cutter 23 satisfy the relationship of A<=B. In order to reduce discharging resistance, it is desirable that the thickness A of the cutter blade stay 22 is less than the thickness B of the cutter 23.

Description

Technical field [0001] The present invention relates to a roll cutter type fiber bundle cutting device that continuously cuts a fiber bundle wound on a cutter roll into a certain length while pressing the fiber bundle, and particularly relates to an efficient and equal length cutting of the fiber bundle at the same time , Rolling cutter type fiber bundle cutting device that can discharge smoothly. Background technique [0002] Nowadays, in the manufacture of short synthetic fibers (ste-pu), a roll cutter type fiber bundle cutting device is often used, which winds the fiber bundle around a plurality of cutters and is fixedly arranged on a roller at a required pitch On the cutter roll in the circumferential direction of, the fiber bundle is continuously cut to a certain length while pressing the fiber bundle. [0003] In order to cut the fiber bundle using such a fiber bundle cutting device, the outer peripheral surface of the fiber bundle wound 2-3 turns on the cutter roll is pres...

Claims

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Application Information

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IPC IPC(8): D01G1/04
Inventor 能村素郎土居義孝
Owner MITSUBISHI CHEM CORP