초록 ▼

An exit orifice of an outer extrusion port of a coextrusion apparatus for producing a composite doughy rope-like extrudate product has a D-shaped cross-section with a straight boundary line or edge located at an upstream side of the exit orifice relative to the direction of motion of a conveyor for

An exit orifice of an outer extrusion port of a coextrusion apparatus for producing a composite doughy rope-like extrudate product has a D-shaped cross-section with a straight boundary line or edge located at an upstream side of the exit orifice relative to the direction of motion of a conveyor for taking up and transporting the extrudate product. The D-shaped cross-section of the exit orifice results in an extrudate product having on one side a flat surface which engages the surface of the conveyor upon deposition of the product thereon. An inner extrusion port recessed by a distance from the outer extrusion port has an exit orifice with a substantially oval cross-section taking the form of a pair of semicircular end portions joined by a rectangular central portion. The cross-sections of the exit orifices are elongated in a direction extending parallel to the direction of motion of the conveyor. The outer extrusion port has a D-shaped edge for causing the tumbling of particles in an outer doughy mass extruded between the inner and outer extrusion ports. The outer extrusion port has a land surface extending parallel to the direction of extrudate flow for peeling off dough surface layers adhering to particles tumbled partially through the outer surface of the extrudate mass.

대표청구항 ▼

In a co-extrusion apparatus for forming a continuous food product having dissimilar inner and outer portions wherein said inner portion is enveloped by said outer portion and said outer portion is a dough, said apparatus comprising an inner extrusion port, an outer extrusion port, first conduit mean

In a co-extrusion apparatus for forming a continuous food product having dissimilar inner and outer portions wherein said inner portion is enveloped by said outer portion and said outer portion is a dough, said apparatus comprising an inner extrusion port, an outer extrusion port, first conduit means, second conduit means and transport means, said inner extrusion port having an inner exit orifice with a first cross-sectional area through which said inner portion is extruded, said outer extrusion port having an outer exit orifice with a second cross-sectional area greater in area than said first cross-sectional area, said inner extrusion port being located entirely within said outer extrusion port and spaced from said outer extrusion port to define an exit passage between said inner extrusion port and said outer extrusion port, said first conduit means communicating with said inner extrusion port for providing said inner portion, said second conduit means communicating with said outer exit passage for providing said outer portion, whereby said outer dough portion passes through said exit passage and envelops said inner portion extruded through said inner extrusion port, said transport means including a continuously moving conveyor for receiving said food product upon extrusion through said inner and said outer extrusion port, the motion of said conveyor past said inner extrusion port and said outer extrusion port defining an upstream side and a downstream side with respect to said inner extrusion port and said outer extrusion port, the improvement wherein the inner extrusion port and the outer extrusion port are oriented to extrude the continuous food product substantially perpendicularly to the plane of the transport means; and the outer exit orifice has a cross-section with a first portion defining a straight base line at the upstream side and a second portion defining a curve at the downstream side, whereby the food product is provided with a cross-section facilitating the position of the food product on the conveyor.