EP 0202413 A1 19861126 - Remote control proportional flow adhesive dispensing gun.
Title (en)
Remote control proportional flow adhesive dispensing gun.
Title (de)
Klebepistole mit ferngesteuerter Durchflussregelung.
Title (fr)
Pistolet dispensateur télécommandé à débit proportionel pour adhésifs.
Publication
Application
Priority
US 71941585 A 19850403
Abstract (en)
A remote control proportional flow adhesive dispensing gun (10) is pneumatically actuated and electrically controlled. An electric current applied to a magnetic torquemotor (17) rotates a torquemotor arm (61) which displaces the spool (41) of a three-way air valve (16), admitting air to a control valve stem actuating piston (30). A constant rate feedback spring (18) directly disposed between the actuating piston (30) and the torque arm (61) of the torquemotor (17) acts to restore the air valve spool (41) to an equilibrium non-flow position as the control valve stem (25) approaches a position proportional to torquemotor control current. The air valve (16) exhausts air from the piston (30) and return springs (27) close the control valve (15) when control signal is removed. A shaped control plug (26) attached to the flow control valve stem (25) varies a control opening linearly as stem position changes. A nozzle opening is selected which coordinates with the greatest possible control opening, such that flow is more nearly linearly proportioned to torquemotor control current across the full range of openings in a constant pressure adhesive supply system. The gun body is electrically heated and thermostatically controlled.
IPC 1-7
IPC 8 full level
B05C 5/00 (2006.01); B05C 5/02 (2006.01); B05C 5/04 (2006.01); B05C 11/10 (2006.01)
CPC (source: EP)
B05C 5/001 (2013.01); B05C 5/0225 (2013.01)
Citation (search report)
- DE 2327263 A1 19740131 - NORDSON CORP
- DD 203236 A1 19831019 - BARTHEL WOLFGANG, et al
- GB 2049228 A 19801217 - HEHL KARL
- GB 1325091 A 19730801 - NISSAN MOTOR
- US 3945399 A 19760323 - TIRELLI PAOLO
- US 3817150 A 19740618 - COX R
- US 3643699 A 19720222 - MASON RICHARD K
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 86103534 A 19860315; JP 7563286 A 19860403