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Title:
CONTROLLING APPARATUS FOR NEEDLING MACHINE
Document Type and Number:
Japanese Patent JP11012913
Kind Code:
A
Abstract:

To automate the production of needled felt and produce a needled felt having improved uniformity of the quality.

A magnetic detection piece is fixed to a ground fabric, the circulation number of the ground fabric is detected by a magnetic sensor of a sensor block 53 placed at the side of a needling machine 7 and the needling depth, the needling density, the cloth feeding speed and the tension of the cloth are properly changed according to the number of circulation. The air- permeability and the thickness of the needled felt produced by the needling machine 7 are measured in the needling process and the operation controlling factors of the needling machine 7 are properly adjusted according to each measured result. The process is effective for automating the needling machine, eliminating the troublesome operation inherent to manual work and producing a needled felt having uniform quality by excluding the influence of the personal difference of the operators.


Inventors:
Murakami, Fumio
Morita, Eiichi
Iwasaki, Tokuji
Suzuki, Yasushi
Application Number:
JP1998000165588
Publication Date:
January 19, 1999
Filing Date:
June 12, 1998
Export Citation:
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Assignee:
CHIYODA CORP
NIPPON FELT CO LTD
International Classes:
D04H18/00; D21F7/08; (IPC1-7): D04H18/00; D21F7/08



 
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