公开(公告)号：US4697401A

公开(公告)日：1987-10-06

申请号：US932334

申请日：1986-11-19

Applicant: Sheldon Kessler ,  Vasilios Strubulis

Inventor： Sheldon Kessler ,  Vasilios Strubulis

IPC: B29C65/74 ,  B65B51/14 ,  B65B9/08

CPC classification number: B29C65/222 ,  B29C65/7451 ,  B29C66/1122 ,  B29C66/244 ,  B29C66/431 ,  B29C66/43121 ,  B29C66/8161 ,  B29C66/818 ,  B29C66/8324 ,  B29C66/849 ,  B65B51/148 ,  B29C66/81241 ,  B29C66/8167

Abstract: An L-sealer apparatus in which the transverse arm portion of the pivotal pressure frame is provided with an adjustably-retractable cutting blade for alternatively forming bags having only three sealed sides thereof, with one side edge being left unsealed for subsequent closure by a twist-tie, and for alternatively forming conventional, completely sealed bags. A clamping element is provided for clamping the plastic film adjacent to the portion at which the cutting blade is to cut, in order to provide a clean cut. The plastic film is cut downstream or upstream of the portion being heat-sealed by the electrical heating wire provided with the transverse arm portion of the pressure frame. The cutting blade is adjustable such that its lower cutting edge may be alternately positioned below the lower edge surface of the clamping element to cut the plastic film, in order to form a bag sealed on three sides, or to raise the cutting edge of the blade above the lower edge surfaces of the clamping member, in order to provide a conventional bag completely sealed on all sides. The clamping member is mounted for relative movement with respect to the transverse arm portion of the pressure frame, with which it is floatingly mounted and urged toward the upper surface of the transverse arm portion by a plurality of spring members.

Abstract translation: 一种L-密封装置，其中所述枢转压力框架的横臂部分设置有可调节地缩回的切割刀片，用于交替地形成仅具有三个密封侧面的袋，其中一个侧边缘被开封， 并且用于替代地形成常规的完全密封的袋。 提供夹紧元件用于夹持与切割刀片所在部分相邻的塑料膜，以提供清洁的切割。 通过设置有压力框架的横臂部分的电加热丝线将该塑料膜的下游或上游切断。 切割刀片是可调节的，使得其下切割刃可以交替地定位在夹紧元件的下边缘表面下方以切割塑料膜，以便形成在三侧密封的袋或者使叶片的切割边缘升高 在夹紧构件的下边缘表面之上，以便提供在所有侧面上完全密封的常规袋。 夹紧构件被安装成相对于压力框架的横向臂部分相对运动，通过该夹紧构件被浮动地安装并且通过多个弹簧构件朝向横向臂部分的上表面推动。

公开(公告)号：US4476973A

公开(公告)日：1984-10-16

申请号：US364437

申请日：1982-04-01

Applicant: Sheldon Kessler ,  Vasilios Strubulis

Inventor： Sheldon Kessler ,  Vasilios Strubulis

IPC: B65G25/10 ,  B65G25/00

CPC classification number: B65G25/10

Abstract: The apparatus for sequentially advancing a plurality of articles across a feed table to a work station includes an input station for receiving articles deposited on the feed table, a reciprocating pusher assembly adapted to engage and advance the articles across the feed table from the input station when driven in a forward direction and to disengage from the article when driven in reverse, and an air cylinder-piston drive mechanism for the pusher assembly whereby the length of stroke of the piston and the pusher assembly is selectively variable. The pusher assembly includes a plurality of removable pushers each of which is relocatable at varying intervals along the longitudinal axis of the pusher assembly, and a mechanism for laterally adjusting the position of the pusher assembly to maintain an in-line feed mode regardless of the width of the articles being advanced along the feed table.

Abstract translation: 用于将多个物品顺序地将多个物品跨越进给台推进到工作站的装置包括用于接收沉积在进给台上的物品的输入站，适于从输入站接合并推进物品穿过进料台的往复式推动器组件， 在向前方向上被驱动并且在反向驱动时与制品脱离接合，以及用于推动器组件的气缸 - 活塞驱动机构，由此活塞和推动器组件的行程长度是可选择的。 推动器组件包括多个可拆卸推动器，每个推动器可沿着推动器组件的纵向轴线以可变的间隔重新定位，以及用于横向调节推动器组件的位置以保持直列进给模式而不管宽度的机构 的物品沿饲料台进行。