External switch blade type fiber bundle cutting-off mechanism for beam intensity machine and application

A technology of cutting mechanism and beam strength meter, which is applied in the direction of fiber bundle into fiber sliver/yarn, textile material inspection, textile and paper making, etc. It can solve the problems of inaccurate cutting, large error fluctuation, troublesome operation, etc., and achieve Accurate measurement and calculation, precise cutting process, convenient mechanism use and installation

Active Publication Date: 2019-04-05
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For small sample experiments, most of them are fixed and cut manually with a cutter or manually with a side knife. The manual disadvantage is that the operation is troublesome, and additional cutting tools are required. The efficiency is low, and the fibers are easily skewed during cutting, resulting in inaccurate cutting and large error fluctuations. In addition, most of them are cut by backing plate, not only the edge is not cut completely, but also the tool wears quickly; while the mechanism of manual cutting by side knife needs the side knife to move horizontally in the vertical direction of the fiber, and another mechanism is needed to complete this movement , not only takes up space, but also increases the manufacturing cost of the machine, and at the same time cannot meet the requirements of continuous operation, and the measurement time is longer

Method used

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  • External switch blade type fiber bundle cutting-off mechanism for beam intensity machine and application
  • External switch blade type fiber bundle cutting-off mechanism for beam intensity machine and application
  • External switch blade type fiber bundle cutting-off mechanism for beam intensity machine and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The embodiment uses 66 combed wool (2114 μm) to test. Environmental conditions of the experiment: the temperature is 20° C., and the relative humidity is 65%. The fibers of the wool bundle are first clamped between the upper chuck 12 and the lower chuck 13 at a fixed distance, and the two ends of the grown fibers are naturally laid directly on the surface of the lower bead 10. 1 and the compression spring seat 9 move downward accordingly. Before the knife 1 touches the fiber, the compression spring seat 9 acts on the upper pressing plate 6 by squeezing the compression spring, so that the upper pressing plate 6 and the lower pressing plate 10 are closed and clamped. bundle of fibers. The switch knife 1 continues to descend, and the bundle fibers are cut sequentially. Finally, the air suction port 17 collects the cut fibers 18 .

Embodiment 2

[0034] Embodiment Adopt ramie (fineness is 0.9tex, length is 36.2mm) test. Environmental conditions of the experiment: the temperature is 20° C., and the relative humidity is 65%. The ramie bundle fibers are first clamped between the upper chuck 12 and the lower chuck 13 at a fixed distance, and the two ends of the grown fibers are naturally laid on the surface of the lower bead 10. 1 and the compression spring seat 9 move downward accordingly. Before the knife 1 touches the fiber, the compression spring seat 9 acts on the upper pressing plate 6 by squeezing the compression spring, so that the upper pressing plate 6 and the lower pressing plate 10 are closed and clamped. bundle of fibers. The switch knife 1 continues to descend, and the bundle fibers are cut sequentially. Finally, the air suction port 17 collects the cut fibers 18 .

Embodiment 3

[0036] The embodiment adopts carbon fiber 2.2K test. Environmental conditions of the experiment: the temperature is 20° C., and the relative humidity is 65%. The carbon bundle fiber is first clamped between the upper clamp 12 and the lower clamp 13 at a fixed distance, and the two ends of the grown fiber are naturally laid directly on the surface of the lower bead 10. 1 and the compression spring seat 9 move downward accordingly. Before the knife 1 touches the fiber, the compression spring seat 9 acts on the upper pressing plate 6 by squeezing the compression spring, so that the upper pressing plate 6 and the lower pressing plate 10 are closed and clamped. bundle of fibers. The switch knife 1 continues to descend, and the bundle fibers are cut sequentially. Finally, the air suction port 17 collects the cut fibers 18 .

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PUM

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Abstract

The invention relates to an external switch blade type fiber bundle cutting-off mechanism for a beam intensity machine and application. The cutting-off mechanism comprises a switch blade, a push rod,a cylinder, an undercutting valve, a reset valve, an upper pressing strip, a compressed spring, sliding rods, a compressed spring base, a lower pressing strip, a twisting plate, an upper chuck, a lower chuck, an upper clamping base, a lower clamping base, a base and a suction inlet. The compressed spring base is fixedly arranged on the portion, between the switch blade and the cylinder, of the push rod, the compressed spring is provided with two circular holes so that the two sliding rods can move up and down between the circular holes, when the switch blade moves downwards, the compressed spring base fixed to the connecting rod compresses the compressed spring, the compressed spring compresses the upper pressing strip, the upper pressing strip and the lower pressing strip are closed, andthe bundle fiber between the upper and lower pressing strips is clamped; then, the switch blade falls down to the position making contact with fiber, and all fiber is cut off along with continuous descending of the switch blade from one side. The mechanism is applied to the beam intensity machine so that automation and continuity of fiber cutting can be achieved.

Description

technical field [0001] The invention relates to an external guillotine-type fiber bundle cutting mechanism for a bundle strength meter and its application, belonging to the field of automatic measurement of bundle fiber strength. Background technique [0002] The fiber breaking strength indicates the maximum ability of the fiber to bear the tensile load, and the unit is Newton (N), or centinewton (cN). The breaking strength of a single fiber is called the absolute strength, which is related to the thickness of the fiber. For mutual comparison, the breaking strength (or relative strength) is usually used to characterize it. The following three indicators are commonly used to indicate the fiber fracture strength: (1) fracture stress: it is the maximum tensile force that the fiber can bear on the unit fiber cross section, and the unit is Pa; (2) specific stress: it refers to the unit linear density fiber can withstand The maximum tensile force withstood, in N / tex. (3) Breakin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01G1/10D06H3/00
CPCD01G1/10D06H3/00
Inventor 于伟东卢笛刘洪玲毋戈徐嘉颖
Owner DONGHUA UNIV
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