公开(公告)号：US06176699B1

公开(公告)日：2001-01-23

申请号：US09301230

申请日：1999-04-28

申请人： Vladimir Franjo ,  John F. Kenyon ,  Laszlo Papp

发明人： Vladimir Franjo ,  John F. Kenyon ,  Laszlo Papp

IPC分类号： B29C4900

CPC分类号： B29C49/4242 ,  B29C49/04 ,  B29C49/4205

摘要： A parison handling device has a pair of opposed arms with each arm having at least a pair of grippers to selectively engage an extruded parison and transfer it to a second location such as to a mold of a blow molding machine. At least one gripper on each arm is both slidably and generally pivotally movable relative to the arm to facilitate initially engaging and gripping the parison and subsequent closing and stretching of a gripped end of the parison to more efficiently distribute the material of the parison such that after blow molding of the parison, the molded product has a substantially uniform wall thickness throughout. Preferably, a follower attached to each movable gripper is responsive to a profile or contour of a cam carried by each arm to guide the movement of the gripper corresponding to the profile of the cam. By adjusting or changing the profile of the cams, the slidable and pivotal movement of the grippers relative to the arm can be controlled to control the stretching of the parison and hence the distribution of the parison material as desired to form a particular product. By forming a product with a more uniform wall thickness, substantially less material is needed to form the product and therefore, the product may be formed at significantly lower cost.

摘要翻译： 型坯处理装置具有一对相对的臂，每个臂具有至少一对夹持器，以选择性地接合挤压型坯并将其转移到第二位置，例如吹塑机的模具。 每个臂上的至少一个夹持器可滑动地并且大体上相对于臂可转动地移动，以便于最初接合和夹紧型坯，并随后闭合和拉伸型坯的夹紧端，以更有效地分配型坯的材料， 型坯的吹塑成型，成型品的整个壁厚基本上均匀。 优选地，附接到每个可移动夹持器的随动件响应于由每个臂承载的凸轮的轮廓或轮廓，以引导相应于凸轮轮廓的夹持器的运动。 通过调节或改变凸轮的轮廓，可以控制夹具相对于手臂的可滑动和枢转运动，以控制型坯的拉伸，从而控制型坯材料的分布以形成特定的产品。 通过形成具有更均匀的壁厚的产品，需要大量更少的材料来形成产品，因此，可以以低得多的成本形成产品。

公开(公告)号：US06428739B1

公开(公告)日：2002-08-06

申请号：US09687315

申请日：2000-10-13

申请人： Vladimir Franjo ,  John F. Kenyon ,  Laszlo Papp

发明人： Vladimir Franjo ,  John F. Kenyon ,  Laszlo Papp

IPC分类号： B29C4900

CPC分类号： B29C49/4242 ,  B29C49/04 ,  B29C49/4205

摘要： A parison handling device has a pair of opposed arms with each arm having at least a pair of grippers to selectively engage an extruded parison and transfer it to a second location such as to a mold of a blow molding machine. At least one gripper on each arm is both slidably and generally pivotally movable relative to the arm to facilitate initially engaging and gripping the parison and subsequent closing and stretching of a gripped end of the parison to more efficiently distribute the material of the parison such that after blow molding of the parison, the molded product has a substantially uniform wall thickness throughout. Preferably, a follower attached to each movable gripper is responsive to a profile or contour of a cam carried by each arm to guide the movement of the gripper corresponding to the profile of the cam. By adjusting or changing the profile of the cams, the slidable and pivotal movement of the grippers relative to the arm can be controlled to control the stretching of the parison and hence the distribution of the parison material as desired to form a particular product. By forming a product with a more uniform wall thickness, substantially less material is needed to form the product and therefore, the product may be formed at significantly lower cost.

摘要翻译： 型坯处理装置具有一对相对的臂，每个臂具有至少一对夹持器，以选择性地接合挤压型坯并将其转移到第二位置，例如吹塑机的模具。 每个臂上的至少一个夹持器可滑动地并且大体上相对于臂可转动地移动，以便于最初接合和夹紧型坯，并随后闭合和拉伸型坯的夹紧端，以更有效地分配型坯的材料， 型坯的吹塑成型，成型品的整个壁厚基本上均匀。 优选地，附接到每个可移动夹持器的随动件响应于由每个臂承载的凸轮的轮廓或轮廓，以引导相应于凸轮轮廓的夹持器的运动。 通过调节或改变凸轮的轮廓，可以控制夹具相对于手臂的可滑动和枢转运动，以控制型坯的拉伸，从而控制型坯材料的分布以形成特定的产品。 通过形成具有更均匀的壁厚的产品，需要大量更少的材料来形成产品，因此，可以以低得多的成本形成产品。