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A cylinder rod is mounted to the top of the platen extending through the press crown and the catcher’s housing. The housing is fixed to the machine crown/frame and surrounds the rod, which is free to move during normal operation. Wedge-shaped clamping jaws inside the housing are held with hydraulic or pneumatic pressure to keep the wedges in position so that the rod can move freely.
If hydraulic or pneumatic system pressure fails, or if a rope, chain, belt, or toothed drive breaks, the unit prevents the load from crashing down at any position of the descent. As downward force increases, so does the unit’s clamping force. When hydraulic or pneumatic pressure is restored in conjunction with the equivalent reverse movement of the rod, the clamping wedges are released.
鑄件展--2016第十七屆廣州國際鑄件產品及工藝技術研討展-廣州巨浪展覽策劃有限公司
-The
17th China(Guangzhou )Int’l Casting product Exhibition
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