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Process and apparatus for producing yarn and gland packing

A technology of a manufacturing device and a manufacturing method, which is applied to the field of yarn gland packing, can solve problems such as no production involved, and achieve the effect of high mechanical strength

Active Publication Date: 2011-04-06
NIPPON PILLAR PACKING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But, as the manufacturing method of above-mentioned yarn, as patent document 3 (referring to figure 1 ) only discloses the production method or the idea of ​​a device as a square strip of expanded graphite disposed in a cylindrical member in the up-down direction, but does not actually involve how to produce it efficiently

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Process and apparatus for producing yarn and gland packing
  • Process and apparatus for producing yarn and gland packing
  • Process and apparatus for producing yarn and gland packing

Examples

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Effect test

no. 1 example

[0099] The yarn of the first embodiment was produced in the following manner using the above-mentioned production method. A plurality of expanded graphite materials 4 having a rectangular cross-sectional shape of thickness t 0.38 mm×width w 1.0 mm and a length of about 200 mm are filled into the cylindrical member 3 while shifting the positions of these ends by 20 mm to produce a cross-sectional shape The cylindrical member 3 is braided (knitted) using a nichrome wire (or stainless steel wire, etc.) with a diameter of about 0.1 mm as the fiber material 2 as a circular (circular) yarn 1 . That is, it is an example of setting the shift amount D=20 mm of the ends of the expanded graphite material 4 4 . The aspect ratio h of the expanded graphite material 4 in the first yarn 1 of the first embodiment is h=1.0 / 0.38≈2.63, and the weight is 5 g / m.

[0100] image 3 , represents the gland packing 5 made with the yarn 1 of the first embodiment. This gland packing 5, after being wove...

no. 2 example

[0102] The yarn of the second embodiment was produced in the following manner using the above-described production method. While the ends of the expanded graphite material 4 with a cross-sectional size of 0.38 mm in thickness, 1.0 mm in width, and 200 mm in length are respectively staggered by 30 mm, they are collected into bundles of elongated parts, and their outer circumference is covered with a cylindrical part 3, thereby making a cross-sectional shape of The circular yarn 1 and the above-mentioned tubular member 3 are woven by a knitting method using a fiber material 2 made of a nichrome wire having a wire diameter of 0.1 mm. That is, it is an example in which the amount of deviation D of the ends of the expanded graphite material 4 is set to 30 mm. The aspect ratio h of the expanded graphite material 4 in the second yarn 1 of the second embodiment is h=1.0 / 0.38≈2.63, and the weight is 4 g / m.

[0103] After weaving with 8 yarns 1 of the second embodiment, the surface is ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

A process for yarn production by which a yarn comprising a cylindrical member obtained by weaving or knitting a fibrous material and expanded graphite packed as a base in the cylindrical member can be made practically usable at low cost and the yarn can be produced with excellent productivity. The process, which is for producing a yarn comprising a cylindrical member 3 obtained by weaving or knitting a fibrous material 2 and expanded graphite packed therein, comprises a thinly cutting step s in which an expanded-graphite sheet 9 being continuously fed in the state of having a given width is continuously cut into a small width in the width direction for the sheet and a feeding / packing step k in which the strip-form expanded graphite material 4 produced in the thinly cutting step s is guided and fed to and packed into the cylindrical member 3.

Description

technical field [0001] The present invention relates to a yarn manufacturing method, manufacturing device and gland packing (Gland Packing). A method for producing a thread, a production device, and a gland packing for the yarn produced by the production method. Background technique [0002] As the prior art concerning the gland packing used in the shaft seal part of the fluid machine or the yarn (braided type) used on the above-mentioned gland packing, as shown in Patent Document 1 and Patent Document 2, expanded graphite is used The method of using it as a base material is already known. In these patent documents 1 and 2, yarns for gland packing are disclosed. The yarns are made by filling a cylindrical member with an elongated expanded graphite sheet. Formed by weaving (knitting or tubular weaving, etc.) of fibrous material. Also, the gland packing is made by twisting or knitting (for example; 8-ply corner knitting using 8 braided wires) using a plurality of yarns made...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04B21/20D04C1/12F16J15/24
Inventor 上田隆久
Owner NIPPON PILLAR PACKING CO LTD
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