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Sealing mechanism

阅读:527发布:2023-12-15

专利汇可以提供Sealing mechanism专利检索,专利查询,专利分析的服务。并且A power sealing mechanism for forming tension resisting joints in overlapping portions of bundle encircling and load retaining tensioned strapping and a seal blank has an air pressure operated cylinder-piston combination with a projecting piston rod connected to drive the joint forming mechanism mounted in a frame which in turn is mounted on the cylinder. The joint forming mechanism includes pairs of strapping and seal blank engaging jaws or bending dies pivotally mounted on the frame and at least one pair of rotatable deforming dies or punches rotatably mounted on the frame adjacent the jaws. The jaws are connected to be pivoted by the piston rod to have relative movement with respect to the deforming dies to cause the jaws to fold the seal blank closely about the overlapping strapping portions and to force the seal blank into engagement with the deforming dies to deform the sandwich of seal blank and the strapping portions into a tensioning resisting joint. The advancing piston rod carries a cam-like abutment to pivot a latch having first and second stops to a position where a spring pressed detent retains the latch at the end of the advancing and joint forming movement of the piston rod. The first stop would be engaged by the abutment upon too early withdrawal of the piston rod and thus prevent retraction of the joint forming dies unless the mechanism had been fully advanced. The second stop is engaged by the abutment near the end of the normal retraction of the piston rod after a complete joint forming operation so as to release the latch from its detent and to condition the mechamism for a subsequent joint forming operation.,下面是Sealing mechanism专利的具体信息内容。

1. In a power sealing mechanism for forming tension resisting joints between overlapping strapping portions and an encircling seal blank, having a power unit with a reciprocal rod, a support frame mounted on the unit, a combination of pivotal strapping and seal blank engaging bending jaws and rotatable deforming dies mounted on the frame, linkages connecting the rod to the jaws to effect relative movement of the jaws with respect to the deforming dies upon advance of the rod to cause the jaws and deforming dies to deform the seal blank and strapping portions into a tension resisting joint, the improvement comprising a plate pivotally mounted on tHe frame and having an inclined camming surface at one end thereof and two spaced apart stops at the other end thereof, an abutment member on the rod and engageable with said camming surface to pivot said plate during advancement of the rod, said stop nearest to said plate being engageable by said abutment member during retraction of the rod before complete advancement of the rod and completion of the joint thereby to block full retraction of the rod before the joint is completed, and a spring biased detent continually urged toward said plate positively engaging said plate in its fully pivoted position when the rod has been fully advanced to complete the joint, the other of said stops being engaged by said abutment member during retraction of the rod after formation of a complete joint and near the end of the withdrawal thereof to release said plate from said detent to condition the mechanism for a subsequent operation.
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