Machine for coiling elongated striplike material |
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| 申请号 | US3580018D | 申请日 | 1968-06-13 | 公开(公告)号 | US3580018A | 公开(公告)日 | 1971-05-25 |
| 申请人 | EVG ENTWICKLUNG VERWERT GES; | 发明人 | GOTT HANS; RITTER JOSEF; | ||||
| 摘要 | A machine for coiling elongated striplike material such as welded mesh reinforcement of the kind in which the material is coiled on a mandrel from which the completed coil is removed after the coil and mandrel have been separated by axial movement relative to each other is provided with a gripper mechanism for gripping the coil and this mechanism is arranged to travel between a first position near the mandrel and a second position away from the mandrel. The gripper mechanism has at least two grippers capable of pivoting inwards from opposite sides into contact with the outer surface of a coil mounted on the mandrel so that they thrust against the surface of the coil and hold it together. The gripper mechanism is arranged so that during its movement from the first position into the second position, the grippers continue to hold the coil firmly together and prevent it from uncoiling. | ||||||
| 权利要求 | 1. In a machine for coiling elongated striplike material of the kind comprising a coiling mandrel, means for coiling said material on said mandrel, means for bringing about relative axial movement between a coil of material on said mandrel and said mandrel to separate said mandrel from said coil and means for removing said coil from said mandrel after said separation, the improvement comprising a gripper mechanism for gripping said coil on said mandrel, and means mounting said gripper mechanism for translatory movement, all individual grippers remaining stationary with regard to one another between a first position near said mandrel and a second position away from said mandrel, said gripper mechanism including at least two grippers, means pivotally mounting said grippers for inward movement from opposite sides of said coil into contact with the outer surface of said coil mounted on said mandrel whereby said grippers thrust against the surface of said coil holding it together, said grippers continuing to thrust against the surface of said coil during said translatory movement of said gripper mechanism from said first position to said second position whereby said grippers continue to hold said coil firmly together and prevent it from uncoiling in said second position. 2. A machine as claimed in claim 1, further comprising a bearing cantilever mounting one end of said mandrel, and wherein said means mounting said gripper mechanism enables said gripper mechanism to travel parallel to the axis of said mandrel whereby when said gripper mechanism travels from said first position to said second position said coil is removed axially from said mandrel. 3. A machine as claimed in claim 2, further comprising a sliding ejector plate for sliding said coil off said mandrel by thrusting against one end of said coil and means mounting said sliding plate for traveling movement from one position near said bearing at said one end of said mandrel to a second position beyond the other end of said mandrel. 4. A machine as claimed in claim 2, further comprising a movable support for supporting the other end of said mandrel and means mounting said support for pivotal movement whereby said support can move away from the path of said coil and said gripper mechanism between said first and said second positions. 5. A machine as claimed in claim 1, wherein saId gripper mechanism comprises at least two arms, means mounting each of said arms for pivoting movement on a movable frame, said pivoting movement taking place about axes extending parallel to the axis of said mandrel and fluid-pressure cylinder means coupling said arms together in said pivoting movement. 6. A machine as claimed in claim 5, further comprising a rod extending parallel to the axis of said mandrel over substantially the full axial length of said coil and means mounting said rod on the end of one of said pivoted arms. 7. A machine as claimed in claim 5, further comprising a rocker and means mounting said rocker on the end of one of said pivoted arms, two rods and means mounting one of said rods on each end of said rocker, said rods extending over substantially the full axial length of said coil. 8. A machine as claimed in claim 1, further comprising means for feeding said striplike material to said mandrel and for forming a loop of said material of variable length between said feeding means and said mandrel, a control device capable of feeding said material forwards from said loop and also capable of braking the forward movement of said material from said loop to said mandrel and guillotine means between said control device and said mandrel. 9. A machine as claimed in claim 8, further comprising a coiling motor for driving said mandrel and limit switches for actuating said control device and said motor in dependence upon the length of said loop. 10. A machine as claimed in claim 8, further comprising guide means between said guillotine and said mandrel, and means for opening and closing said guide means for introducing the beginning of said elongated striplike material into a holding slot in said mandrel. |
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