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Roller for transporting hollow filaments, manufacturing method for hollow filaments, and manufacturing method and manufacturing device for hollow filament membrane sheets

A manufacturing device and technology for thread-like objects, which are applied in the field of manufacturing hollow thread-like objects, and can solve problems such as difficulty in setting an elastic adjustment roller and the like

Active Publication Date: 2015-10-21
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a plurality of hollow fiber membranes are closely arranged and conveyed at the same time, it may be difficult to install dancer rolls due to space constraints.

Method used

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  • Roller for transporting hollow filaments, manufacturing method for hollow filaments, and manufacturing method and manufacturing device for hollow filament membrane sheets
  • Roller for transporting hollow filaments, manufacturing method for hollow filaments, and manufacturing method and manufacturing device for hollow filament membrane sheets
  • Roller for transporting hollow filaments, manufacturing method for hollow filaments, and manufacturing method and manufacturing device for hollow filament membrane sheets

Examples

Experimental program
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Embodiment

[0384] Hereinafter, although an Example demonstrates concretely, this invention is not limited to this.

[0385] [Example]

[0386] In roll (diameter 160×effective width 640mm, material: PVC) After forming 200 parallel grooves with a groove pitch of 3.2mm, a groove height of 1.3mm, and groove R1.5 on the surface, set eight positions at equal intervals in the circumferential direction from the top of the groove 3mm deep depression (width 10mm), fit a flexible part (INOAC EPDM series rubber sponge E-4188, width: 10mm x height: 5mm x length: 600mm) into the depression and fix it with double-sided tape, ready Such two sets of rolls are used as the first roll and the second roll.

[0387] A bobbin wound with a hollow fiber membrane with an outer diameter of 2.8mm (type: ADF2800CA-1 (material: PVDF), manufactured by Mitsubishi Rayon Corporation) was set on the bobbin unwinding device, and the bobbin was wound around the first roller and In the state where the top end of the holl...

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Abstract

The present invention provides a roller for transporting hollow filaments capable of mitigating, for each hollow filament, fluctuation in the tension applied to the hollow filaments in order to mitigate fluctuation in tension applied to a hollow filament by only replacing an existing driving roller, without adding, to a filament path, new rollers or devices in addition to existing rollers and devices, even when simultaneously transporting two or more hollow filaments. A transport roller (1010) for transporting two or more filaments (F) simultaneously comprises a roller body (1014), and convex strand members (1016) (tension fluctuation mitigating means) that mitigate, for each hollow filament (F), the fluctuation in the tension applied to the hollow filaments (F), wherein the convex strand members (1016) are provided, with a gap opened in the circumferential direction, in at least two locations on the circumferential face of the roller body (1014). Moreover, the present invention is a manufacturing method for hollow filament sheets that includes a connecting step, a winding step, a fixing step, and a cutting step, and for which at least one roller used in the steps is a roller having the tension fluctuation mitigating means.

Description

technical field [0001] The present invention relates to a roller for conveying a hollow threadlike object (hollow fiber membrane, etc.), and a method for producing a hollow threadlike article using the roller. [0002] Also, the present invention relates to a method and apparatus for manufacturing a hollow fiber membrane sheet constituting a hollow fiber membrane module used for solid-liquid separation operations such as water treatment. [0003] this application claims priority based on Japanese Patent Application No. 2012-282223 for which it applied to Japan on December 26, 2012, and takes in the content here. Background technique [0004] Hollow filaments such as hollow fiber membranes can be obtained, for example, by spinning a resin composition containing a polymer as a main component as a stock solution by various spinning methods, and then forming it into a shape (Patent Document 1 ~3, etc.). [0005] Furthermore, these hollow thread objects are processed into hollo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H59/18
CPCB65H57/14B65H57/16B65H59/18
Inventor 井手口诚上野敦靖服部希义田中利典赤川和美
Owner MITSUBISHI CHEM CORP
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