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| QUICK RETURN CRANK MECHANISM |
| V. Ryan © 2002 - 2024 |
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| A quick return mechanism produces reciprocating motion and is used in machines such as a Shaping Machine. The animation below, shows that the ‘return stroke’ (reverse direction) of the arm is slightly faster than the forward movement. When applied to machines, this reduces machining time, improving efficiency. |
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| A quick return mechanism is used where there is a need to convert rotary motion from an electric motor, into reciprocating motion. Inside a Shaping Machine, the quick return mechanism moves the cutting tool forwards and backwards. |
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| Some power hacksaws utilise this mechanism, in order to produce the movement of the blade. The blade moves relatively slowly during the back stroke, when cutting takes place. The forward stroke is faster and a simple mechanism lifts the cutting arm away from the material. The cutting arm drops down gently onto the metal’s surface, for cutting on the back stroke. This process is repeated until cutting is complete. |
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CLICK HERE FOR SHAPING MACHINE
EXAMPLE |
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CLICK HERE FOR MECHANISMS PAGE |
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