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Paper making method and apparatus

a paper making method and paper making technology, applied in the field of paper making methods and apparatuses, can solve the problems of low yield of raw materials under this method and insufficient paper formation, and achieve the effect of good paper formation

Inactive Publication Date: 2005-10-27
NSK WARNER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007] An object of the present invention is to provide a paper making method and apparatus for obtaining discontinuous paper bodies with further good paper formation.

Problems solved by technology

However, since the yield of the raw material under this method is low, there have recently been developed new methods of directly making such annular frictional plates out of raw paper (e.g., JP-A-2-91294, JP-A-3-76780, JP-A-3-107628, etc.).
According to the conventional methods and apparatus for manufacturing discontinuous paper bodies such as annular bodies, the paper formation has not necessarily been satisfactory.

Method used

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  • Paper making method and apparatus
  • Paper making method and apparatus
  • Paper making method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[First Embodiment]

[0035] With reference to FIGS. 1 to 6, a description will be given of a paper making apparatus according to a first embodiment of the invention. As shown in FIGS. 1 to 3, a paper making apparatus 1 includes a stirring tank 2 and a paper making portion 3. The stirring tank 2 includes a middle cylinder 21, an outer cylinder 23 concentric with the middle cylinder 21, a raw-material feeding port 24, air nozzles 25 as stirring mechanisms and jet holes 28, which are respectively secured to an aluminum top plate 26. The middle cylinder 21 has a substantially conical portion 22 in the lower end portion thereof. The jet holes 28 jet water for cleansing the middle cylinder 21 and the outer cylinder 23. A seal ring 27 is also secured to the lower end portion of the outer cylinder 23.

[0036] The paper making portion 3 is structured such that a wire cloth 31 is fitted to the top of a paper making frame 32 and a cover 34 for collecting moisture component such as the overflowed r...

second embodiment

[Second Embodiment]

[0042] A description will be given of a paper making apparatus according to a second embodiment of the invention with reference to FIGS. 7 to 12. As shown in FIGS. 7 to 9, a paper making apparatus 101 includes a stirring tank 102 and a paper making portion 103. The stirring tank 102 is formed by mounting raw-material feeding ports 150, stirring air nozzles 160, jet nozzles 170 and an outer cylinder 112 onto an aluminum top 110 integrally formed with a middle cylinder 111. A seal 114 is secured to the lower portion of the outer cylinder so as not to leak the raw material outside.

[0043] On the other hand, the paper making portion 103 includes a paper making frame 115, a cover 116 and a central body 120. The paper making frame 115 holds a wire cloth 113 and has a suction port 117. The cover 116 collects moisture component such as the raw material caused to overflow outside from the paper making frame 115. The central body 120 has an opening 121 communicating with th...

third embodiment

[Third Embodiment]

[0049] A description will be given of a paper making apparatus according to a third embodiment of the invention with reference to FIGS. 13 and 14. The third embodiment is different from the second one in that raw-material feeding ports 151 are provided on the sides of the middle cylinder 111. The basic structure of the third embodiment is similar to what is shown in FIGS. 13 and 14, and the constitutional elements identical with those of the second embodiment are given by like reference numerals. In the second embodiment of the invention shown in FIGS. 13 and 14, as the raw-material feeding ports 150, the air nozzles 160 and the jet water nozzles 170 are fitted to the top plate 110, the space of the top is narrowed. In case where the diameter of the paper body to be made is large, there develops no problem, but in case where the diameter thereof is small, however, the installation area of such a top plate would cause a serious problem.

[0050] The apparatus structur...

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PUM

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Abstract

An apparatus for making paper includes a stirring tank and a paper making portion. The stirring tank includes: an outer cylinder; a middle cylinder disposed concentrically with the outer cylinder; a raw-material feeding port for feeding raw-material into said stirring tank; a stirring mechanisms; and a top plate for holding the outer and middle cylinders in a predetermined position. The paper making portion is installed below the stirring tank and includes: a wire cloth and a paper making frame having an opening for holding said wire cloth, and the opening is connected to a suction unit. The stirring mechanisms are uniformly disposed above the wire cloth. In addition, a plurality of raw-material feeding ports are uniformly disposed above the wire cloth.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a method and apparatus for making paper from a solution including various kinds of fiber base materials and fillers dispersed in water, and more particularly to a method and apparatus for making raw paper as an intermediate of a wet friction material for use as a friction plate. [0003] 2. Description of the Related Art [0004] Conventionally, annular frictional materials for use as frictional plates and the like have been made by punching from sheets of paper before or after the paper are thermoset while impregnating with thermosetting resin. However, since the yield of the raw material under this method is low, there have recently been developed new methods of directly making such annular frictional plates out of raw paper (e.g., JP-A-2-91294, JP-A-3-76780, JP-A-3-107628, etc.). [0005] On the other hand, in the case of obtaining discontinuous paper bodies such as handmade paper, ther...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): D21F13/00
CPCD21F13/00
Inventor AZUMA, TAKASHISUZUKI, MAKOTOHORIUCHI, NOBUHIRO
Owner NSK WARNER