公开(公告)号：US06526728B1

公开(公告)日：2003-03-04

申请号：US09695962

申请日：2000-10-25

申请人： Gregg R. Sorenson ,  Mark A. Kubisiak

发明人： Gregg R. Sorenson ,  Mark A. Kubisiak

IPC分类号： B65B906

CPC分类号： B29C66/8242 ,  B29C65/02 ,  B29C65/222 ,  B29C65/228 ,  B29C65/229 ,  B29C65/7433 ,  B29C65/7439 ,  B29C65/7873 ,  B29C66/133 ,  B29C66/137 ,  B29C66/43121 ,  B29C66/4322 ,  B29C66/73921 ,  B29C66/8167 ,  B29C66/81871 ,  B29C66/8221 ,  B29C66/8223 ,  B29C66/8225 ,  B29C66/8227 ,  B29C66/836 ,  B29C66/849 ,  B65B9/06 ,  B65B51/18 ,  B65B51/26

摘要： A method and apparatus for grasping and advancing adjacent layers of thermoplastic film through the side sealing mechanism of a packaging machine includes a plurality of belts which travel about two sets of cooperating pulleys. Each pulley has two circumferential belt grooves defined within it, each belt groove being functionally adapted to allow the travel of a belt along it. A first line of travel is defined along a path which is parallel with the line of travel for articles moving along the wrapping machine. The second line of travel diverges away at a slight angle. The belts are truncated V-belts, the “truncated V” portion of the belts being disposed outwardly of the pulleys. Each set of pulleys is offset such that the belts cooperate in tooth-meshing fashion. A tail pulley of each set is mounted in an offset cam fashion and is spring loaded to apply tension to the belts. Disposed between the belt paths is a hot wire assembly having a similarly longitudinally diverging hot wire. The hot wire assembly utilizes one mounting block which is stationary and another which is rotatable. The mounting blocks are provided with means for allowing insertion of hot wire end connectors at a predetermined depth. An end sealing apparatus includes means for adjusting the end seal location relative to the vertical height of the article to be wrapped.

摘要翻译： 用于通过包装机的侧面密封机构夹持和推进相邻的热塑性薄膜层的方法和装置包括沿两组协同滑轮行进的多个皮带。 每个滑轮具有限定在其内的两个周向皮带槽，每个皮带槽在功能上适于允许皮带沿其行进。 沿着与沿着包装机移动的物品的行进路线平行的路径限定第一行程。 第二行旅行偏离了一点点。 皮带是截头V形皮带，皮带的“截头V”部分设置在皮带轮的外侧。 每组滑轮被偏移，使得皮带以齿啮合的方式配合。 每组的尾部滑轮以偏移凸轮方式安装，并且被弹簧加载以向带施加张力。 设置在带路径之间的是具有类似的纵向发散的热丝的热丝组件。 热丝组件使用一个固定的安装块，另一个是可旋转的。 安装块设置有用于允许将热丝端连接器插入预定深度的装置。 端部密封装置包括用于相对于被包装物品的垂直高度调节端部密封位置的装置。