US 5,632,817 AGranted

Dual components mixing system for coating

AssigneeRansburg Industrial Finishing K.K.

InventorsToshio Hiraga, Masayuki Kuroda, Hidetoshi Kamaru, Youji Murata

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Abstract

A dual component mixing system for coating comprises a first tank containing a main agent, a second tank containing a hardening agent diluted with thinner, a mixer which mixes the main agent and the hardening agent and supplies the mixture to a manually operated coating gun, a main agent line connecting the mixer and the first tank, a hardening agent line connecting the mixer and the second tank, a flow meter disposed within the main agent line, a flow meter and a flow regulating valve disposed within the hardening agent line, and a feedback control device which receives signals from the flow meters and controls the flow regulating valve so that the amount of hardening agent is a predetermined ratio with respect to the amount of main agent. The dual component mixing system according to the present invention provides an adequate control of the main agent/hardening agent ratio regardless of the differences among individuals manipulating the coating gun.

Claims20

Dependent claims

A dual component mixing system for mixing together a main agent and a hardening agent, comprising:

a first tank containing a main agent;
a second tank containing a hardening agent diluted with thinner;
a mixer for mixing said main agent and said hardening agent together so as to form a mixture of said main agent and said hardening agent;
a manually operated coating gun operatively connected to said mixer for receiving said mixture of said main agent and said hardening agent;
a main agent conduit operatively interconnecting said first main agent tank to said mixer so as to supply said main agent from said first main agent tank to said mixer;
a hardening agent conduit operatively interconnecting said second hardening agent tank to said mixer so as to supply said hardening agent from said second hardening agent tank to said mixer;
means for detecting the flow rate of said main agent flowing within said main agent conduit;
means for detecting the flow rate of said hardening agent flowing within said hardening agent conduit;
flow regulating means disposed within said hardening agent conduit for regulating the flow of said hardening agent within said hardening agent conduit;
and
feedback control means, operatively connected to said means for detecting the flow rate of said main agent and to said means for detecting the flow rate of said hardening agent so as to receive signals from said means for detecting the flow rate of said main agent and from said means for detecting the flow rate of said hardening agent, for controlling said flow regulating means so that the amount of said hardening agent within said mixture of said main agent and said hardening agent comprises a predetermined percentage of the amount of said main agent within said mixture of said main agent and said hardening agent.

8 more elements

A dual component mixing system for mixing together a first component and a second component different from said first component, comprising:

a first tank containing a first component;
a second tank containing a second component different from said first component;
a mixer for mixing said first component and said second component together so as to form a mixture of said first component and said second component;
a first conduit operatively interconnecting said first tank to said mixer so as to supply said first component from said first tank to said mixer;
a second conduit operatively interconnecting said second tank to said mixer so as to supply said second component from said second tank to said mixer;
first means for detecting the flow rate of said first component flowing within said first conduit;
second means for detecting the flow rate of said second component flowing within said second conduit;
flow regulating means disposed within said second conduit for regulating the flow of said second component within said second conduit;
and
feedback control means, operatively connected to said first means for detecting the flow rate of said first component and operatively connected to said second means for detecting the flow rate of said second component so as to receive signals from said first means for detecting the flow rate of said first component which are indicative of the flow rate of said first component within said first conduit and from said second means for detecting the flow rate of said second component which are indicative of the flow rate of said second component within said second conduit, for controlling said flow regulating means so that the amount of said second component within said mixture of said first and second components comprises a predetermined percentage of the amount of said first component within said mixture of said first and second components.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/523,856Filed 6 Sep 1995
Priority: JP 6-2124506 Sep 1994
Granted: 27 May 1997
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

B01F 35/83
Forming a predetermined ratio of the substances to be mixed: by controlling the ratio of two or more flows, e.g. using flow sensing or flow…
B01F 35/833
By controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices: flow control by valves, e.g. opening…
B29B 7/603
For feeding, e.g. end guides for the incoming material: in measured doses, e.g. proportioning of several materials
B29B 7/72
Component parts, details or accessories; Auxiliary operations: measuring, controlling or regulating