초록 ▼

A dough extruder is disclosed that is configured to provide a continuous dough rope suitable for cracker products using a straight extended low friction compression chamber and a die plate oriented substantially perpendicular to a laminar flow of the dough. In one embodiment, the extruder can have a

A dough extruder is disclosed that is configured to provide a continuous dough rope suitable for cracker products using a straight extended low friction compression chamber and a die plate oriented substantially perpendicular to a laminar flow of the dough. In one embodiment, the extruder can have a compressive force sufficient to extrude a plastic mass in a laminar flow in the range of about less than 120 psi; a compression chamber providing for an interior coefficient of friction in the range of about 0.2 and 0.35; and a die plate horizontally aligned with the longitudinal axis of the compressive force.

대표청구항 ▼

1. An extruder, comprising: a compression generator configured to extrude a plastic mass in a laminar flow with a pressure in a range of less than 120 psi;a compression chamber having an upstream opening to receive the plastic mass from the compression generator, wherein at least a portion of an int

1. An extruder, comprising: a compression generator configured to extrude a plastic mass in a laminar flow with a pressure in a range of less than 120 psi;a compression chamber having an upstream opening to receive the plastic mass from the compression generator, wherein at least a portion of an interior of the compression chamber having a coefficient of friction in a range of about 0.2 and 0.35;a die plate attached to a downstream opening of the compression chamber, the die plate being horizontally aligned with a longitudinal direction of a compressive force and the laminar flow of the plastic mass; andwherein the die plate has a plurality of lands across a front face and is oriented downstream of the compression generator at a distance to minimize turbulence and pulsing of the plastic mass while maintaining the laminar flow and minimizing a pressure drop, wherein the die plate is configured to maintain about 5 to 15 percent density uniformity of the plastic mass across the front face of the die plate. 2. The extruder of claim 1, wherein an orientation of the die plate is determined by providing a first extension disposed between the compressive force and the compression chamber and a second extension between the compression chamber and the die plate, wherein a length of each extension piece is about 40 to 60 percent of a length of the compression chamber. 3. The extruder of claim 1, wherein the compression generator provides a pressure in the compression chamber in a range of about 70 to 95 psi. 4. The extruder of claim 1, wherein the compression generator comprises a pair of augers rotatable inwardly toward each other and out-of-phase. 5. The extruder of claim 1, further comprising a frame, a dough hopper, a pre-feed box and an auger box, wherein the compression chamber includes an upstream extension and a downstream extension each having an inner perimeter comprised of a thermoplastic polyoxymethylene. 6. The extruder of claim 1, further comprising a water jacket to maintain a temperature of the plastic mass in a range of about 90 to 130° F. 7. The extruder of claim 1, further comprising a water jacket to maintain a temperature of the plastic mass of about 99° F. 8. The extruder of claim 1, wherein the die plate has a plurality of die holes, the die holes having in order of flow, a first straight taper, a second concave inward taper, and a land section, wherein a land depth being at least as long as a diameter of a land opening. 9. The extruder of claim 8, wherein a land area length is about 50 percent of a thickness of the die plate. 10. The extruder of claim 1, wherein the die plate further is configured to extrude a plastic mass comprising sodium-metabisulfite in a range of about 0.005 to about 0.015 percent weight of the plastic mass.