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Patent Searching and Data


Title:
COMTROLLER OF RESIN STRAND CUTTER
Document Type and Number:
Japanese Patent JPH02310009
Kind Code:
A
Abstract:

PURPOSE: To prevent generation of dispersion in a form of chips and the defective chip by shortening a cutting period of time, by controlling a pressurizing device and rotary driving device is accordance with a stored value of the control target of inner pressure of a tank and cutter speed.

CONSTITUTION: A cutter speed pattern and pressure-speed conversion table varying in order of a low fixed speed/speeding-up/high fixed speed/speed reduction/low fixed speed are set up in a computor 53. When manufacturing of a chip is begun, pressure of the inside of a reaction tank T which is suitable for a low-fixed-speed cutter speed is operated and given to a pressure controller and openings of valves 43, 44 are controlled so that the inner pressure of the tank detected by a sensor 45 becomes target pressure. Then also the cutter speed suitable for the practical inner pressure of the tank detected by the sensor 45 is operated and given to a speed controller and a number of revolutions of a motor 46 is controlled by sending out a signal to a motor controller 55. When an operator gives an OK signal for starting of the speeding-up is given to the computor 53, the inner pressure of the reaction tank T and cutter speed are speeded up gradually and the inside of the reaction tank T and the cutter speed are kept respectively at the high fixed pressure and high fixed speed. When a residual resin quantity Vt operated through the number of revolutions of a cutter 18 obtained by integrating and counting becomes a predetermined value, a reduction is begun.


Inventors:
KAWATSU TOSHITERU
MORI TORU
KIDA MASAAKI
Application Number:
JP13198289A
Publication Date:
December 25, 1990
Filing Date:
May 25, 1989
Export Citation:
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Assignee:
DIAFOIL CO LTD
RYOKA TECH KK
International Classes:
B26D5/20; B29B9/06; (IPC1-7): B26D5/20; B29B9/06
Attorney, Agent or Firm:
Tsuyoshi Shigeno