Extrusion apparatus
AssigneeSandvik Conveyor GmbH
InventorReinhard Froeschke
Life of this patent
Estimating the term…
Abstract
Apparatus for the extrusion of a flowable mass onto a conveyor, comprises first and second cylindrical containers. The first container is disposed for rotation about a longitudinal axis and includes first passages for depositing the flowable mass. The second container includes a wall portion which contains a plurality of second passages. The wall portion is disposed against the first container, the latter rotating relative to the second container so that the first and second passages are periodically aligned to enable the flowable mass to be deposited onto the conveyor. The first and second containers define a gap therebetween which creates a negative pressure to suck-in excess mass from the outer periphery of the apparatus. A spatula is provided to push the mass into the gap.
Claims10
Apparatus for the extrusion of a flowable mass onto a moving conveyor comprising:
- a first cylindrical container disposed above the conveyor for rotation about a longitudinal axis,
- said first container including a plurality of first passages through the container periphery,
- a second cylindrical container including means for longitudinally admitting into said second container the mass to be extruded and having a wall portion containing a plurality of second passages directed toward the conveyor and radially alignable with said first passages, said wall portion disposed at least closely adjacent said first container,
- said first container being mounted for continuous 360.degree. rotation about the longitudinal axis thereof relative to said second container such that relative rotation between said containers produces sequential misalignment and alignment of the first and second passages to enable the flowable mass to travel radially outwardly through the aligned passages and onto the conveyor, and
- a spatula for removing excess mass from the perimeter of said first container, said spatula being directed toward said first container generally in the direction of rotation thereof, said spatula being tightly pressed against the perimeter of said first container in the region of said first passages to scrape excess mass into said first passages.
Apparatus for extruding drops of a flowable mass onto a conveyor, said apparatus comprising:
- a first cylindrical container comprising a plurality of first passages,
- a second cylindrical container disposed within said first container and including a plurality of second passages,
- means for admitting flowable material into said second container,
- means for producing relative rotation between said containers to periodically align said first and second passages to deposit drops of the flowable material through the passages and onto the conveyor,
- said first and second containers being mounted to separate radially from one another during said relative rotation so as to form a negatively pressurized gap therebetween at a location opposite the location where the passages are periodically aligned, to suck-in excessive mass into said passages of said first container.
Dependencies are inferred from the claim text.