| 摘要 |
An automatic blade control mechanism for meat skinning machines comprising a laterally extending skin gripping roll having a cutting blade movably positioned adjacent thereto. A power means is connected to the gripping roll to cause the rotation thereof so that a layer of meat can be moved rearwardly towards the cutting blade to separate a layer of skin from the meat. A blade control means is connected to the opposite ends of the cutting blade to cause the cutting blade to automatically move into a cutting position upon engagement with the meat. Each of the blade control means comprises an end plate secured to the end of the cutting blade and having a biased support means connected thereto which yieldably resists the upward movement of the cutting blade away from the gripping roll. A support arm is secured to the support means and is operatively connected to a crank arm having its axis of rotation below and forwardly of the rotational axis of the gripping roll. The rearward end of the crank arm is pivotally connected to the upper end of a spring loaded rod which is pivotally and slidably connected adjacent its lower end to a control lever. The control lever may be selectively pivotally moved to a first position whereby the cutting blade is moved outwardly and rearwardly from the gripping roll for cleaning purposes. The control lever is yieldably normally positioned in a second position wherein the cutting blade is in a position to move into its cutting position. The engagement of the cutting blade by the meat causes the support arm and the crank arm to be pivotally moved thereby causing the spring loaded rod to yieldably and slidably move downwardly, against the spring resistance imposed thereon, with respect to the control lever to permit the cutting blade to move into its cutting position to separate the layer of skin from the meat. The instantaneous initial bite of the cutting blade into the meat is enhanced and accelerated by pivoting the cutting blade from its position adjacent the gripping roll rearwardly and downwardly into its cutting position.
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