Apparatus for metering flowable materials in sand core making machines
AssigneeDipl. Ing. Laempe GmbH
InventorJoachim Laempe
Life of this patent
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Abstract
Apparatus for transferring metered quantities of a flowable bonding agent from a tank into a mixer of a sand core making machine has an upright tubular vessel into which the bonding agent is drawn from the tank by a suction pump and a pressure pump which transfers the accumulated bonding agent from the vessel into the mixer. The vessel contains a float which cooperates with sensors serving to generate signals for actuation or deactivation of the pumps and/or valves in the conduits connecting the vessel with the tank, mixer and the pumps. The bonding agent is kept out of contact with the pumps and out of contact with the valves in the conduits connecting the vessel with the pumps.
Claims20
Apparatus for metering flowable bonding agents for sand in core making machines, comprising a source of bonding agent;
- a receptacle for metered quantities of flowable bonding agent;
- and means for transferring metered quantities of flowable bonding agent form said source to said receptacle, including conduit means connecting said source with said receptacle, a metering vessel, connected to said conduit means between said source and said receptacle, and means for effecting the flow of a selected quantity of flowable bonding agent from said source into said vessel by way of said conduit means for thereupon effecting the flow of such selected quantity from said vessel and from said conduit means connected between said vessel and said receptacle into said receptacle.
Dependencies are inferred from the claim text.