Title:
【発明の名称】加熱液体が所定の加熱状態に達したとき加熱液体を操作する装置
Document Type and Number:
Japanese Patent JP2573556
Kind Code:
B2
Abstract:
A motor drive for a hot melt adhesive pump is maintained in an inoperative condition until the adhesive has heated sufficiently to permit free operation of the motor. The adhesive is received in a container supported upon a heater which is activated to heat the container and the adhesive therein. The output of a proportional control for the heater, which is responsive to the container temperature, is monitored. The output of the proportional control, when the container temperature is near a set point temperature indicative of a desired heated condition for the adhesive, is an intermittent signal. In one form of the invention, the intermittent signal is electrically integrated to produce an interlock release pulse permitting operation of the motor. In a second form of the invention, a thermal relay is coupled to a source of electrical power through a switching circuit, which permits power to be coupled to the thermal relay during the intermittent off times of the heater. The thermal relay thermally integrates the intermittent power coupled thereto and produces an interlock release signal to permit operation of the motor.
Inventors:
SUTEFUAN ERU MAAKERU
Application Number:
JP4695784A
Publication Date:
January 22, 1997
Filing Date:
March 12, 1984
Export Citation:
Assignee:
NORDSON CORP
International Classes:
B05C11/10; B05C17/005; B67D7/80; F24H1/18; F24H1/20; F24H9/20; G05D23/24; (IPC1-7): F24H1/18; B67D5/62
Attorney, Agent or Firm:
Masao Okabe (2 outside)