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    Apparatus for forming agricultural drip tape
    3.
    发明授权
    Apparatus for forming agricultural drip tape 失效
    用于形成农用滴胶带的装置

    公开(公告)号：US06920907B2

    公开(公告)日：2005-07-26

    申请号：US10318028

    申请日：2002-12-13

    Applicant: Charles R. Harrold ,  Theodore J. Bren, Jr.

    Inventor： Charles R. Harrold ,  Theodore J. Bren, Jr.

    IPC: B29C53/50 ,  B29C53/54 ,  B29C65/00 ,  B29C65/48 ,  B28B5/10

    CPC classification number: B29C53/50 ,  B29C53/54 ,  B29C65/48 ,  B29C65/4815 ,  B29C65/7847 ,  B29C65/7894 ,  B29C66/0242 ,  B29C66/1122 ,  B29C66/4322 ,  B29C66/4324 ,  B29C66/4722 ,  B29C66/49 ,  B29C66/61 ,  B29C66/73711 ,  B29C66/8242 ,  B29C66/83411 ,  B29C66/83413 ,  Y10T156/1013 ,  Y10T156/1038 ,  Y10T156/1304

    Abstract: A process for forming irrigation drip tape includes, broadly, the steps of a) supplying a longitudinally continuous strip of flexible plastic material in a first direction; b) heating a narrow band of the strip along a longitudinal axis thereof; c) depositing a continuous bead of material on an upper surface of the strip, along the narrow band, while the strip moves in the one direction; d) cooling the strip and the bead; e) folding the strip longitudinally so that the longitudinal edges overlap; and f) sealing said longitudinal edges to form a tubular drip tape with a longitudinal, overlapped seam, with the bead extending parallel to the seam and in opposed, facing relationship thereto. Apparatus for carrying out the process includes a first supply station adapted to supply a continuous length of flexible material; a second station including a trimmer roll and a pair of associated knife blades arranged to trim opposite longitudinal edges of the material to form a strip of predetermined width: a third station including a slitter wheel arranged to cut axially spaced longitudinal slits in the strip; a fourth station for applying a pre-formed bead of material onto a surface of the strip, the bead having one or more secondary flow paths formed therein; and a fifth station including a plurality of rollers arranged to wrap the strip about a mandrel into tubular form; a nozzle arranged to apply an adhesive bead along one of the longitudinal edges of the strip; and at least one pressure roller for applying pressure along the longitudinal edge to form a bonded seam between the longitudinal edges of the strip.

    Abstract translation: 用于形成冲洗滴胶带的方法大体上包括以下步骤：a）在第一方向上供应纵向连续的柔性塑料材料条; b）沿其纵向轴线加热条带的窄带; c）当条带沿着一个方向移动时，沿着窄带在条的上表面上沉积材料的连续珠; d）冷却带材和珠粒; e）纵向折叠条带，使得纵向边缘重叠; 以及f）密封所述纵向边缘以形成具有纵向重叠接缝的管状滴落带，其中所述胎圈平行于所述接缝延伸并且与其相对的面对关系延伸。 用于执行该过程的装置包括适于提供连续长度的柔性材料的第一供应站; 第二站，包括修剪辊和一对相关联的刀片，其布置成修剪材料的相对的纵向边缘以形成预定宽度的条带：第三站，包括布置成切割条带中的轴向间隔开的纵向狭缝的分切轮; 第四站，用于将预成形的材料珠粒施加到所述带材的表面上，所述珠粒具有形成在其中的一个或多个二次流动路径; 以及包括多个辊的第五站，所述多个辊布置成将所述带围绕心轴缠绕成管状; 喷嘴，布置成沿着条带的一个纵向边缘施加粘合剂珠; 以及用于沿着纵向边缘施加压力的至少一个压力辊，以在带的纵向边缘之间形成粘合的接缝。

    Guiding device
    5.
    发明授权
    Guiding device 有权

    公开(公告)号：US11104462B2

    公开(公告)日：2021-08-31

    申请号：US16470577

    申请日：2018-03-14

    Applicant: Tetra Laval Holdings & Finance S.A.

    Inventor： Stefano Costa ,  John Richard Pedretti ,  Luciano Amidei

    IPC: B65B41/16 ,  B65B9/20 ,  B65B9/207 ,  B65B9/22 ,  B65B57/04 ,  B65B59/00 ,  B29C53/54 ,  B65B41/18

    Abstract: A guiding device for guiding a sheet of packaging material in a packaging machine for producing sealed packages includes: a plurality of folding rollers defining a passage for the sheet of packaging material, the passage having a longitudinal axis, wherein the plurality of folding rollers are configured to cause a first longitudinal edge of the sheet of packaging material to superimpose to a second longitudinal edge of the sheet of packaging material, opposite the first longitudinal edge, wherein the first longitudinal edge and the second longitudinal edge define an overlapping area having an extension, wherein the plurality of folding rollers include: a group of first folding rollers configured to rotate around first rotation axes, and at least one second folding roller configured to rotate around a second rotation axis, and a driving arrangement configured to move the at least one second folding roller towards and away from the longitudinal axis.

    Device and method for manufacturing tube bodies
    6.
    发明授权
    Device and method for manufacturing tube bodies 有权

    公开(公告)号：US09931826B2

    公开(公告)日：2018-04-03

    申请号：US14240047

    申请日：2012-08-22

    Applicant: Julius Läubli

    Inventor： Julius Läubli

    IPC: B32B41/00 ,  B29C65/78 ,  B29C65/00 ,  B29C53/54 ,  B29C65/02 ,  B29C65/04

    CPC classification number: B32B41/00 ,  B29C53/54 ,  B29C65/02 ,  B29C65/04 ,  B29C65/7832 ,  B29C65/7894 ,  B29C66/1122 ,  B29C66/4322 ,  B29C66/49 ,  B29C66/71 ,  B29C66/72321 ,  B29C66/72341 ,  B29C66/836 ,  B32B2041/04 ,  B32B2309/72 ,  B29K2077/00 ,  B29K2023/086 ,  B29K2067/003

    Abstract: A device for manufacturing circumferentially closed tubular tube bodies, comprising conveying means for conveying the substrate in a conveying direction, and also comprising tube-forming means which are designed to form a web-like substrate, which has a first and a second longitudinal edge, into a tubular form in which, in the circumferential direction, the first and the second longitudinal edge form or delimit a contact region, in particular abutting or overlapping region, which extends in the conveying direction, wherein the tube-forming means effect the shaping of the substrate into the tubular form in a shaping region and comprise welding means for welding the tubular form at a weld circumferential position, first sensor means, which are upstream of the shaping region; in the conveying direction, for detecting the position of the substrate web, setting means for setting the position of the substrate web transversely with respect to the conveying direction, and first control means which are designed to actuate the setting means, taking into consideration the measurement values from the first sensor means, such that the web-like substrate is held in a setpoint position transversely with respect to the conveying direction or such that the web-like substrate is adjusted in the direction of the setpoint position.

    CONSTRUCTION OF TUBULAR ASSEMBLIES
    10.
    发明申请
    CONSTRUCTION OF TUBULAR ASSEMBLIES 有权

    公开(公告)号：US20210154909A1

    公开(公告)日：2021-05-27

    申请号：US16618255

    申请日：2017-06-01

    Applicant: Long Pipes Limited

    Inventor： Andrew MYERS ,  Neil Deryck Bray GRAHAM ,  Arthur Derrick Bray GRAHAM

    IPC: B29C63/00 ,  B29C53/54 ,  B29C63/06 ,  B32B1/08 ,  B32B5/02 ,  B32B3/26 ,  B32B7/14 ,  B32B13/12 ,  B32B13/14 ,  B32B27/12 ,  B32B27/32 ,  B32B27/30 ,  B32B27/40 ,  B32B7/06

    Abstract: A method and apparatus for constructing a tubular assembly 40 comprising an inner portion (24) and a further portion (23) surrounding the inner portion. The inner portion (24) comprises reinforcement (37) and the further portion (23) being formed from a strip (50) of material comprising two opposed longitudinal marginal side portions (53). The apparatus comprises an assembly station (220) comprising a wall (253). The apparatus comprises means for advancing the inner portion (21) along a first path (231) extending passed the wall (253), and means for advancing the strip (50) along a second path (232) and causing the strip to encircle the wall (253) and thereby wrap about and surround the inner portion (21). The apparatus further comprises means (321) for introducing resinous binder into the reinforcement (37) as the strip (50) is being wrapped about the inner portion (21).

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