Glass fiber chopped strand manufacturing apparatus and manufacturing method

A technology of chopped strands and glass fibers, which is applied in glass manufacturing equipment, manufacturing tools, textiles and papermaking, etc., and can solve problems such as inability to discharge, narrowing of cutting blade intervals, poor cutting of glass strands, etc.

Active Publication Date: 2017-11-21
NIPPON ELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Here, when the cutter roller and the rubber roller are rotated at the same peripheral speed to cut the glass strands, the glass fiber chopped strands may enter between the cutting blades, causing clogging and cannot be discharged.
Especially in the case of producing short glass fiber chopped strands, the distance between the cutting blades becomes narrow, and the glass fiber chopped strands tend to enter between the cutting blades and cause clogging
If you try to cut the glass strand with a clogged cutting blade, there is a possibility that the glass strand may not be cut properly

Method used

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  • Glass fiber chopped strand manufacturing apparatus and manufacturing method
  • Glass fiber chopped strand manufacturing apparatus and manufacturing method
  • Glass fiber chopped strand manufacturing apparatus and manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0076] exist image 3 In the first embodiment shown in (a), the slip ratio S is randomly varied using both the first variation method and the second variation method. Each interval in the timing chart demarcated by a dotted line represents one period of fluctuation of the slip ratio S. FIG. Set the reference slip ratio S' to 6.0%, and make the slip ratio S fluctuate randomly from the reference slip ratio S' with a fluctuation amount of ±0.6 to ±1.0%. The variable time period is randomly changed between 10 seconds and 14 seconds. In the present embodiment, since both the vertical fluctuation amount of the slip ratio S and the time period of the fluctuation are randomly varied or changed, the cutting blade 10 a of the cutter roll 10 can be rotated with respect to the surface 11 a of the rubber roll 11 before and after rotation. Abutting states randomly staggered in direction. As a result, deep grooves can be reliably prevented from being formed on the surface 11 a of the rubb...

no. 2 approach

[0078] exist image 3 In the second embodiment shown in (b), the vertical fluctuation amount of the slip ratio S is set to be fixed, and the time period during which the slip ratio S fluctuates is randomly changed using the second fluctuation method. Each section demarcated by a dotted line in the timing chart represents one cycle in which the slip ratio S fluctuates. Set the reference slip ratio S' to 5.0%, and make the slip ratio S fluctuate with ±1.0% up and down variation from the reference slip ratio S', and make the time period of the slip ratio S change within 10 Seconds to 22 seconds are randomly changed. In the present embodiment, since the time period of the fluctuation of the slip ratio S is randomly changed, the cutting blade 10 a of the cutter roll 10 can be offset in a state randomly shifted in the front and rear directions of rotation with respect to the surface 11 a of the rubber roll 11 . catch. As a result, deep grooves can be reliably prevented from being...

no. 3 approach

[0080] exist image 3 In the third embodiment shown in (c), the time period of the fluctuation of the slip ratio S is set to be fixed, and the vertical fluctuation amount of the slip ratio S is randomly fluctuated using the first fluctuation method. Each interval in the timing chart demarcated by a dotted line represents one period of fluctuation of the slip ratio S. FIG. The reference slip ratio S' is set to 4.0%, and the slip ratio S is randomly fluctuated from the reference slip ratio S' with a fluctuation amount of ±0.4 to ±2.0%, and the fluctuation of the slip ratio S The time period is set to 10 seconds. In the present embodiment, since the vertical fluctuation amount of the slip ratio S is randomly varied, the cutting blade 10a of the cutter roller 10 can be brought into contact with the surface 11a of the rubber roller 11 in a state of being randomly shifted in the front-rear direction of rotation. . As a result, deep grooves can be reliably prevented from being for...

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Abstract

The present invention provides a glass fiber chopped strand manufacturing apparatus that does not easily form deep grooves on the surface of the rubber roller even if the peripheral speed of the cutter roller is set to be higher than that of the rubber roller. The manufacturing apparatus (100) of glass fiber chopped strands is equipped with: a rubber roller (11) which conveys the glass strand (F) supplied from upstream to downstream; The surface (11a) of the surface (11a) cuts off the glass strand (F) while contacting and rotating, wherein, the slip ratio S of the rubber roller (11) and the cutter roller (10) relative to the rubber roller (11) is always The positive value and the mode of changing are respectively rotated, and the slip rate S is expressed by the following formula (1), S(%)=(v1 / v2-1)×100...(1), v1: the outer circumference of the cutter roller surface peripheral speed, v2: the peripheral speed of the outer peripheral surface of the rubber roller.

Description

technical field [0001] This invention relates to the manufacturing apparatus and manufacturing method of the glass fiber chopped strand provided with the rubber roll and the cutter roll. Background technique [0002] The glass chopped strands are produced by cutting glass fiber strands (hereinafter, simply referred to as glass strands) obtained by collecting several hundred to several thousand glass monofilaments into predetermined lengths. The glass strand cutting process is performed by rotating the cutter roll in contact with the surface of the rubber roll in a state where the glass strand supplied from the upstream is placed on the surface of the rubber roll. Cutting blades are attached to the surface of the cutter roll at equal intervals and radially around the rotation axis. When the glass strands are fed between the cutter roll and the rubber roll, the glass strands are cut into short fibers of a certain length by the cutter roll, thereby generating glass fiber chopp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01G1/04B26D1/40C03B37/16D06H7/02
CPCC03B37/16D06H7/02D01G1/04B26D1/405B26D5/00B26D7/2628
Inventor 山下泰树松原正典青木敏之
Owner NIPPON ELECTRIC GLASS CO LTD
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