Butchering – Skinning – Peeling by movement of workpiece past cutter
Patent
1993-12-27
1996-07-09
Little, Willis
Butchering
Skinning
Peeling by movement of workpiece past cutter
A22B 516
Patent
active
055339271
DESCRIPTION:
BRIEF SUMMARY
The invention is based on a skinning and trimming machine as defined hereinafter. In a known, generic skinning and trimming machine (German Published, Non-Examined Patent Publication DE-OS 38 37 181), good skinning is attained by means of the cooperation of the surface toothing of the traction roller, the cutting blade or the blade bar disposed with specific spacing of its hollow surface. In this known machine annular grooves disposed on the traction roller are engaged by teeth of a cleaning comb for cleaning the surface of the traction roller. Because of this design, the toothed surface is thus reduced by the surface area required by the annular grooves. Correspondingly, the efficiency during skinning is decreased, because the traction roller essentially assumes the feed function during skinning. While the cleaning comb in this machine essentially removes pieces of skin and tissue from the surface of the traction roller, a cleaning roller whose toothing corresponds to that of the traction roller acts to clean fat and less securely attached pieces. The two toothings engage so that particles present in the longitudinal toothing of the surface of the traction roller are squeezed out, particularly into the annular grooves, as with a mangle. The cleaning roller is disposed downstream of the cleaning comb in the direction of rotation of the traction roller. Although the cleaning comb removes the essential pieces of skin, with many types of meat the meshing of the traction roller and cleaning roller toothings causes the formation of fat and tissue coatings that are pressed firmly onto the surface of the cleaning roller and impair the cleaning function of the traction roller.
In another known skinning device (French Patent Disclosure FR 70 12 414) a stripping roller whose surface is likewise toothed cooperates with the traction roller. The toothing of this stripping roller does not engage the toothing of the traction roller, and the traction roller and stripping roller have the same direction of rotation, so that a high relative speed results on the surfaces of the traction roller and stripping roller, which are located opposite and close to one another. The stripping roller carries off the separated pieces of skin and tissue to an adequate extent. However, fat and fine-particle materials cannot be removed by this means; hence, a fan is additionally used to blow away such pieces from the surface of the traction roller that result in all of the accompanying disadvantages.
ADVANTAGES OF THE INVENTION
In contrast, the skinning and trimming machine of the invention having has the advantage that the entire surface of the traction roller is available for the task of skinning because annular grooves are no longer necessary. By means of the arrangement known per se of the stripping roller, the connected pieces such as pieces of skin and tissue are removed from the surface of the traction roller. The toothing of the downstream cleaning roller then engages the toothing of the traction roller surface and presses out fat pieces and fine particles there. Coatings forming there are removed from the surface of the cleaning roller by means of the cleaning comb engaging this surface, so this cleaning roller, with extensively cleaned teeth, engages the unclean traction roller. The annular grooves only cause an insignificant decrease in the cleaning effectiveness of the cleaning roller. The overall efficiency of the skinning and trimming machine of the invention is significantly improved in comparison to the known machines.
In accordance with an advantageous embodiment of the invention, the sharp-edged beads on the surface of the stripping roller extend in a screwlike manner. A screw-shaped arrangement of this type is known per se from the above-mentioned machine (FR-PS 70 12 414). The slightly screw-shaped course facilitates the removal of skin from the traction roller, because skinning begins on one side of the roller, and then extends along the length of the roller.
In accordance with a further advantageous embodiment of the
REFERENCES:
patent: 4338704 (1982-07-01), Welton et al.
Greigg Edwin E.
Greigg Ronald E.
Little Willis
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