Batch material blender and method therefor
AssigneeDart Industries Inc.
InventorVincent S. La Bianca
Life of this patent
Estimating the term…
Abstract
A measuring and transferring device for automatically metering predetermined and variable quantities of virgin plastic material, reprocessed plastic material and color concentrate to an extrusion machine. This masterbatch material blender incorporates a rotary conveyor having openings therein that receive and retain predetermined amounts of virgin plastic material and color concentrate in one position of movement of the conveyor and discharge same to the extruder in yet another position of movement thereof. Furthermore, such conveyor is adapted to control yet another reciprocable metering and transfer mechanism that similarly controls the addition of reprocessed material to the batch by way of the same measuring and transferring device.
Claims20
A material measuring and dispensing device for supplying predetermined quantities of a plurality of fluent materials to a molding apparatus and including:
- a rotary conveyor member having top, bottom and peripheral surfaces, said member further including at least two trap chambers for reception of material to be measured and extending between said top and bottom surfaces;
- at least one of said at least two trap chambers being of a fixed volumetric capacity and at least another one of said at least two trap chambers being adapted for adjustably varying the volumetric capacity thereof;
- a bottom plate juxtaposed with the bottom surface and supporting said conveyor member for rotary movement and including at least one aperture therethrough and with which said at least two trap chambers communicate during certain segments of rotation of said conveyor member for dispensing material measured by said trap chambers;
- a top plate affixed and spaced from said bottom plate in juxtaposition with said conveyor member top surface and including at least two inlet passageways for communicating said at least two trap chambers with a supply of material during rotation of said conveyor member;
- and,
- driving means attached to said conveyor member to provide rotary movement thereto.
In combination molding apparatus having a moldable material hopper as an integral part thereof and a material measuring and dispensing device for supplying comminuted moldable material thereto and including:
- a rotary conveyor member having top, bottom and peripheral surfaces, said member further including at least two trap chambers for reception of material to be measured and extending between said top and bottom surfaces;
- at least one of said at least two trap chambers being of a fixed volumetric capacity and at least another one of said at least two trap chambers being adapted for adjustably varying the volumetric capacity thereof;
- a bottom plate juxtaposed with the bottom surface and supporting said conveyor member for rotary movement and including at least one aperture therethrough and with which said at least two trap chambers communicate during certain segments of rotation of said conveyor member for dispensing material measured by said trap chambers;
- a top plate affixed and spaced from said bottom plate in juxtaposition with said conveyor member top surface and including at least two inlet passageways for communicating said at least two trap chambers with a supply of material during rotation of said conveyor member;
- and,
- driving means attached to said conveyor member to provide rotary movement thereto.
A method for simultaneously measuring and transferring a plurality of comminuted moldable materials to a molding apparatus and including the steps of:
- (1) adjusting the volumetric measuring capacity of at least one segment of the measuring and transfer device to a predetermined value;
- (2) delivering a plurality of comminuted moldable materials to that portion of the measuring and transfer device of which at least one segment has been volumetrically adjusted;
- (3) moving said portion of said measuring and transfer device so that measured volumes of material are discharged from said device during each cycle of movement to said molding apparatus;
- and
- (4) intermingling said materials at and subsequent the discharge thereof from said device.
A material measuring and dispensing device for supplying predetermined quantities of a plurality of fluent materials to a molding apparatus and including:
- a rotary conveyor member having top, bottom and peripheral surfaces said member further including at least two trap chambers for reception of material to be measured and extending between said top and bottom surfaces;
- at least one of said at least two trap chambers being of a fixed volumetric capacity and at least another one of said at least two trap chambers being adapted for adjustably varying the volumetric capacity thereof;
- a bottom plate juxtaposed with the bottom surface and supporting said conveyor member for rotary movement and including at least one aperture therethrough and with which said at least two trap chambers communicate during certain segments of rotary movement of said conveyor member for dispensing material measured by said trap chambers;
- a top plate affixed and spaced from said bottom plate in juxtaposition with said conveyor member top surface and including at least two inlet passageways for communicating said at least two trap chambers with a supply of material during rotary movement of said conveyor member;
- and,
- driving means attached to said conveyor member to provide rotary movement thereto.
Dependencies are inferred from the claim text.