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21. 发明申请

WO2013019292A1 HINGED TUBULAR HEATER FOR SIDE SEALING MACHINE 审中-公开
标题翻译：用于侧封机的铰链式加热器
公开(公告)号：WO2013019292A1
公开(公告)日：2013-02-07
申请号：PCT/US2012/035353
申请日：2012-04-27
申请人： SHANKLIN CORPORATION , CHRISTMAN, Russell , ORSINI, Thomas , BROWN, Todd , POTTS, Jeffrey
发明人： CHRISTMAN, Russell , ORSINI, Thomas , BROWN, Todd , POTTS, Jeffrey
IPC分类号： B65B51/26
CPC分类号： B29C65/18 , B29C65/305 , B29C65/7439 , B29C65/7873 , B29C66/0062 , B29C66/1122 , B29C66/133 , B29C66/4312 , B29C66/4322 , B29C66/7373 , B29C66/816 , B29C66/8161 , B29C66/8167 , B29C66/8221 , B29C66/8242 , B29C66/8244 , B29C66/83221 , B29C66/8324 , B29C66/836 , B29C66/849 , B29C66/876 , B29C66/924 , B65B9/06 , B65B51/26 , B65B2220/10 , Y10T156/1737 , Y10T156/1741
摘要： The problems associated with the prior art have been overcome by the present invention, which describes a tubular heating element which is resistant to damage caused by foreign material. The tubular heating element is pivotably attached to the side sealing machine at its leading (upstream) edge. The trailing (downstream) edge of the tubular heating element is moved by means of a compressible force, such as an air cylinder. In this way, the air in the cylinder pushes the tubular heating element downward into the plane of the film. However, a foreign object located on the film can overcome the force of the air cylinder, thereby lifting the tubular heating element out of the path of the film.
摘要翻译：通过本发明克服了与现有技术相关的问题，本发明描述了一种耐外来材料损坏的管状加热元件。管状加热元件在其顶部（上游）边缘处可枢转地附接到侧密封机。管状加热元件的尾部（下游）边缘通过可压缩力例如气缸移动。以这种方式，气缸中的空气将管状加热元件向下推到薄膜的平面内。然而，位于薄膜上的异物可以克服气缸的力，从而将管状加热元件提升出膜的路径。

22. 发明申请

WO2007008306A2 IMPROVED CUTTING ELEMENT FOR SEALING MACHINE 审中-公开
标题翻译：改进的密封机械切割元件
公开(公告)号：WO2007008306A2
公开(公告)日：2007-01-18
申请号：PCT/US2006/021101
申请日：2006-05-31
申请人： SHANKLIN CORPORATION , KING, Francis, X., Jr. , SMITH, Mitchell, W. , VAN, Jonathan , CHRISMAN, Kenneth
发明人： KING, Francis, X., Jr. , SMITH, Mitchell, W. , VAN, Jonathan , CHRISMAN, Kenneth
IPC分类号： B32B38/04 , B32B37/04
CPC分类号： B26D1/025 , B26D1/0006 , B26D7/10 , B26D7/2628 , B26D2001/006 , B29C65/18 , B29C65/305 , B29C65/7439 , B29C65/7873 , B29C66/1122 , B29C66/133 , B29C66/4312 , B29C66/4322 , B29C66/73921 , B29C66/80 , B29C66/8122 , B29C66/81261 , B29C66/8167 , B29C66/8182 , B29C66/81821 , B29C66/8242 , B29C66/8246 , B29C66/83221 , B29C66/83423 , B29C66/836 , B29C66/849 , B29C66/91212 , B29C66/91231 , B29C66/91421 , B29C66/91431 , B29C66/9161 , B29C66/961 , B65B9/073 , B65B51/18 , B65B61/005 , Y10T156/1054 , Y10T156/108 , Y10T156/1084 , Y10T156/1313 , B29K2905/02
摘要： The present invention describes a blade assembly for use with side-sealing and lap-sealing machines, which are used to seal thermoplastic film. Briefly, the cutting element is oval in shape, and has its entire outer edge profiled. This provides four distinct cutting surfaces, depending on the mounting orientation of the cutting element in the machine. This cutting element is held against a heating block, and its temperature is continuously monitored by' a temperature sensor. The sensor is spring-loaded to insure solid contact with the cutting element, and thus, accurate temperature measurements. This entire assembly is then encased in insulation. Additionally, the cutting element is mounted on an adjustable platform, which permits vertical adjustments relative to the film. Thus, the specific portion of the cutting element which actually engages the film can be adjusted to improve the cutting quality or further extend the useful life of the cutting element.
摘要翻译：本发明描述了一种用于密封热塑性膜的侧封和搭接机的刀片组件。简而言之，切割元件是椭圆形的，并且具有其整个外边缘的轮廓。这提供了四个不同的切割表面，取决于机器中切割元件的安装方向。该切割元件靠在加热块上，其温度通过温度传感器持续监测。传感器采用弹簧加载，以确保与切割元件牢固接触，从而实现精确的温度测量。这整个组件然后被包裹在绝缘体中。另外，切割元件安装在可调节的平台上，可以相对于薄膜进行垂直调节。因此，切割元件的实际接合膜的特定部分可被调整以改善切割质量或进一步延长切割元件的使用寿命。

23. 发明申请

WO02053457A8 AUTOMATIC HIGH SPEED WRAPPING MACHINE 审中-公开
标题翻译：自动高速包装机
公开(公告)号：WO02053457A8
公开(公告)日：2003-03-13
申请号：PCT/US0149599
申请日：2001-12-28
申请人： BELCO PACKAGING SYSTEMS INC , GUZMAN FOSTER
发明人： GUZMAN FOSTER
IPC分类号： B65B9/067 , B65B51/30 , B65B57/16 , B65B59/02 , B65B9/06
CPC分类号： B29C66/0242 , B29C65/222 , B29C65/224 , B29C65/228 , B29C65/7433 , B29C65/7439 , B29C65/7873 , B29C66/1122 , B29C66/133 , B29C66/4312 , B29C66/4322 , B29C66/73715 , B29C66/8224 , B29C66/8242 , B29C66/83421 , B29C66/83543 , B29C66/836 , B29C66/849 , B29C66/872 , B29C66/91212 , B29C66/91231 , B29C66/934 , B65B9/067 , B65B51/30 , B65B53/063 , B65B57/16 , B65B59/02
摘要： An automatic high speed packaging machine (10) for wrapping packages (P) in polymer film (32) is disclosed wherein the film seal at the sides and ends of the packages (P) is made at a high rate of speed as the packages (P) travel through the machine (10). The packages (P) travel continuously in a straight lien through the machine (10). The packages (P) are delivered at the input end of the machine (10) by an in-feed conveyor (20) into a film inverting head (40) where the packages (P) are surrounded by longitudinally half-folded polymer film (32). Thereafter, the packages (P) are transported to a side sealing mechanism (50) which forms a longitudinal seal in the film (32) on the side opposite the fold. Finally, the packages (P) are transported to a travelling end sealing mechanism (70) where a lateral seal is formed at each end of the package (P) and the film web (32) connecting succeeding packages (P) is severed. The machine (10) produces packages (P) which have a sealed film wrap around the entire package (P). If desired, the polymer film (32) may be of heat shrinkable variety and the sealed package (P) may be passed through a shrinking oven to produce a package (P) having a tight "shrink-wrap" film covering.
摘要翻译：公开了一种用于在聚合物膜（32）中包装包装（P）的自动高速包装机（10），其中包装（P）的侧面和端部处的膜密封件以与包装（P） P）穿过机器（10）。包装（P）通过机器（10）以直线留置连续行进。包装（P）通过进料输送机（20）在机器（10）的输入端处被输送到胶片翻转头（40）中，其中包装（P）被纵向半折叠的聚合物膜（ 32）。此后，包装（P）被输送到侧面密封机构（50），侧面密封机构（50）在薄膜（32）的与褶皱相反的一侧形成纵向密封。最后，包装件（P）被运送到在封装（P）的每个端部处形成侧面密封件的行进端密封机构（70），并且连接后续封装（P）的薄膜网（32）被切断。机器（10）产生具有围绕整个包装（P）的密封膜的包装（P）。如果需要，聚合物膜（32）可以是热收缩品种，并且密封包装（P）可以通过收缩炉以产生具有紧密的“收缩包裹”膜覆盖物的包装（P）。

24. 发明申请

WO1996014939A1 PROCESS FOR MANUFACTURING DRIP IRRIGATION SYSTEMS USING PLASTIC LAMINATION/EXTRUSION TECHNIQUES 审中-公开
标题翻译：使用塑料层压/挤出技术制造浸渍灌溉系统的工艺
公开(公告)号：WO1996014939A1
公开(公告)日：1996-05-23
申请号：PCT/US1995014779
申请日：1995-11-14
申请人： AGRIFIM IRRIGATION INTERNATIONAL, N.V. , MILLER, David, B. , LANGA, John, M. , RUSKIN, Rodney
发明人： AGRIFIM IRRIGATION INTERNATIONAL, N.V.
IPC分类号： B05B15/00
CPC分类号： B29C70/742 , A01G25/02 , B29C47/0026 , B29C47/004 , B29C47/0057 , B29C47/0059 , B29C47/0066 , B29C47/028 , B29C53/48 , B29C65/028 , B29C65/7439 , B29C66/1122 , B29C66/4322 , B29C66/472 , B29C66/73711 , B29C66/73713 , B29C66/83413 , B29C66/8432 , B29D23/00 , B29L2009/00 , B29L2022/007 , B29L2023/005 , Y02A40/237 , Y10T156/1013 , Y10T156/1038
摘要： A process for making low cost drip irrigation lines comprises molding a drip emitter (10) having an elongated labyrinthine channel (14). A plastic film (36) is extruded and passed through a film die (32) with an air injection tube (34) at one end forming a plastic film bubble (36). At the bottom of the extruded plastic film bubble, a pair of pressure rolls (42, 44) join opposite faces of the bubble. The emitters are moved in series toward the nip of the pressure rolls and are inserted in sequence with their labyrinthine faces facing toward the hot bubble. The emitters are bonded to the extruded film sheet using the heat of extrusion, and the external sheet forms one face of the labyrinthine channel through each emitter. An exit hole (49) is then formed through the film to each emitter and the film is then wrapped and bead sealed to form a continuous flexible drip irrigation tube. The process can be used for making multiple drip irrigation lines in parallel along a single extruded plastic film sheet.
摘要翻译：制造低成本滴灌线的方法包括模制具有细长的迷宫式通道（14）的滴水发射器（10）。塑料薄膜（36）被挤压并通过一个空气注入管（34）通过一个薄膜模头（32），一端形成塑料薄膜泡（36）。在挤出的塑料膜气泡的底部，一对压力辊（42,44）与气泡的相对面相连。发射器串联移动到压辊的辊隙，并且依次插入它们的迷宫面朝向热气泡。发射体使用挤出热量结合到挤压薄膜片上，外部片材通过每个发射体形成迷宫通道的一个面。然后通过膜将出口孔（49）形成到每个发射器，然后将膜缠绕并且珠密封以形成连续的柔性滴灌管。该方法可用于沿着单个挤出塑料薄膜片并行制备多个滴灌线。

25. 发明申请

WO2014123687A1 LEAK DETECTABLE GEOMEMBRANE LINERS AND METHOD AND APPARATUS FOR FORMING 审中-公开
标题翻译：泄漏检测的地板衬里和形成的方法和装置
公开(公告)号：WO2014123687A1
公开(公告)日：2014-08-14
申请号：PCT/US2014/012269
申请日：2014-01-21
申请人： GSE LINING TECHNOLOGY, INC.
发明人： YOUNGBLOOD, Jimmie, Gordon , GALLAGHER, David, James , ZIMMEL, Edward, Joseph
IPC分类号： B65D90/04
CPC分类号： B29C66/435 , B29C65/02 , B29C65/20 , B29C65/7439 , B29C65/7861 , B29C65/8276 , B29C66/02241 , B29C66/1122 , B29C66/232 , B29C66/304 , B29C66/43 , B29C66/71 , B29C66/723 , B29C66/73141 , B29C66/73187 , B29C66/81417 , B29C66/81422 , B29C66/81427 , B29C66/8167 , B29C66/8221 , B29C66/8324 , B29C66/8362 , B29C66/843 , B29C66/86523 , B29C2793/0054 , B29L2007/005 , E02B3/10 , E02B3/121 , E02B5/02 , E02D31/004 , G01M3/40 , Y10T156/10 , Y10T156/1715 , B29K2023/065
摘要： A geomembrane liner for a containment system including liner panels and connected by a seam at overlapped edges, with the top panel having a conductive lower surface which is non-conductive across the seam. Heat welding of the seams is accomplished by a welder having a heating unit with a projection which interrupts the conductive lower surface of the top panel before forming the seam. Such seams may be used separately or selectively with a lined containment system having a plurality of liner panels covering at least a portion of the containment system bottom. The liner panels have a conductive lower surface and overlap with adjacent panels, and conductive members underlie adjacent panels and contact the conductive Sower surface of both adjacent panels to provide an electrical connection between the conductive lower surfaces of the adjacent panels.
摘要翻译：一种用于容纳系统的土工膜衬里，包括衬板并且通过重叠边缘处的接缝连接，顶板具有导电的下表面，该导电下表面在接缝上是不导电的。接缝的热焊接是由具有凸起的加热单元的焊接机完成的，该突起在形成接缝之前中断了顶板的导电下表面。这种接缝可以与具有覆盖容纳系统底部的至少一部分的多个衬里板的带衬里的容纳系统分开或选择性地使用。衬垫板具有导电的下表面并且与相邻的面板重叠，并且导电构件位于相邻面板的下面，并与两个相邻面板的导电Sower表面接触以在相邻面板的导电下表面之间提供电连接。

26. 发明申请

WO2013172989A1 THIN SEALING DEVICE FOR SIDE SEALING MACHINE 审中-公开
标题翻译：侧密封机用密封装置
公开(公告)号：WO2013172989A1
公开(公告)日：2013-11-21
申请号：PCT/US2013/035057
申请日：2013-04-03
申请人： SEALED AIR CORPORATION (US)
发明人： BROWN, Todd, W. , ORSINI, Thomas, P. , CHRISTMAN, Russell, T.
IPC分类号： B29C65/18 , B29C65/74 , B65B9/06 , B65B51/26
CPC分类号： B29C65/18 , B29C65/305 , B29C65/7439 , B29C65/7873 , B29C66/0062 , B29C66/1122 , B29C66/133 , B29C66/4312 , B29C66/4322 , B29C66/7373 , B29C66/81422 , B29C66/8161 , B29C66/81611 , B29C66/8167 , B29C66/8221 , B29C66/8242 , B29C66/8244 , B29C66/83221 , B29C66/8324 , B29C66/836 , B29C66/849 , B29C66/91212 , B29C66/91231 , B29C66/91421 , B29C66/91431 , B29C66/91631 , B29C66/91641 , B29C66/91651 , B29C66/91653 , B29C66/91655 , B29C66/961 , B29C66/962 , B65B9/067 , B65B51/26 , B65B61/005 , B65B2051/105
摘要： A thin sealing device (230) which is resistant to damage caused by foreign material (700) is disclosed. The thin sealing device (230) has an internal heating element. The thin sealing device has a blunt edge (236), which has a radius smaller than that of the heating element. A thermocouple is placed in a cavity (235) near this blunt edge (236) to monitor the temperature at the point of sealing. In some embodiments, the thin sealing device (230) is pivotably attached to the side sealing machine at its leading (upstream) edge. The trailing (downstream) edge of the thin sealing device (230) is moved by means of a compressible force, such as an air cylinder (660). In this way, the air in the cylinder (660) pushes the thin sealing device (230) downward into the plane of the film (237). However, a foreign object (700) located on the film can overcome the force of the air cylinder (660), thereby lifting the thin sealing device (230) out of the path of the film (237).
摘要翻译：公开了一种耐外来材料（700）所引起的损坏的薄密封装置（230）。薄密封装置（230）具有内部加热元件。该薄密封装置具有一钝角（236），其半径小于加热元件的半径。将热电偶放置在靠近该钝边（236）的腔（235）中，以监测密封点处的温度。在一些实施例中，薄密封装置（230）在其顶部（上游）边缘处可枢转地附接到侧密封机。薄密封装置（230）的尾部（下游）边缘通过诸如气缸（660）的可压缩力移动。以这种方式，气缸（660）中的空气将薄密封装置（230）向下推动到薄膜（237）的平面内。然而，位于膜上的异物（700）能够克服气缸（660）的力，从而将薄密封装置（230）提升出薄膜（237）的路径。

27. 发明申请

WO2007005162A3 GRIP BELT DRIVE SYSTEM 审中-公开
标题翻译： GRIP皮带驱动系统
公开(公告)号：WO2007005162A3
公开(公告)日：2007-05-10
申请号：PCT/US2006021073
申请日：2006-05-31
申请人： SHANKLIN CORP , KING FRANCIS X JR , SMITH MITCHELL W
发明人： KING FRANCIS X JR , SMITH MITCHELL W
IPC分类号： B65B9/00
CPC分类号： B29C65/7873 , B29C65/02 , B29C65/18 , B29C65/7439 , B29C65/749 , B29C66/1122 , B29C66/133 , B29C66/4312 , B29C66/4322 , B29C66/73921 , B29C66/83221 , B29C66/836 , B29C66/849 , B65B9/073 , B65B51/18 , B65B61/005
摘要： The present invention describes an improved grip belt drive system for use in sealing machines used to wrap articles in thermoplastic film. Briefly, a timing belt is used in place of the traditional flat or V belt. The presence of teeth on the pulleys, coupled with the use of a timing belt eliminates the possibility of slippage between the belt and the pulleys. To protect the system in the case of a film jam or misplaced article, a torque- limiting mechanism is included, which disengages the drive system if there is excessive counterforce . Furthermore, the outer surface of timing belt contains a pattern, which when mated with a second belt having the same or a complementary pattern, meshes in such a way so that the two belts are positively locked in both the longitudinal and transverse directions.
摘要翻译：本发明描述了一种用于密封机器的改进的夹带驱动系统，该机器用于将物品包裹在热塑性薄膜中。简而言之，使用同步带代替传统的平面或V形带。滑轮上存在齿，加上同步带的使用，消除了皮带与滑轮之间滑动的可能性。为了保护系统在发生胶片卡住或放置错误的物品的情况下，包括扭矩限制机制，如果存在过度的反作用力，则会使驱动系统脱离。此外，同步皮带的外表面包含图案，当与具有相同或互补图案的第二皮带配合时，所述图案以这样的方式啮合，使得两个皮带在纵向和横向两个方向上都形锁合地锁定。

28. 发明申请

WO1983001926A1 HEAT WELDING OF THERMOPLASTICS 审中-公开
标题翻译：热塑性热焊接
公开(公告)号：WO1983001926A1
公开(公告)日：1983-06-09
申请号：PCT/US1982001690
申请日：1982-12-01
申请人： YOUNG, William, Edmund , GERBER, Ernst, Walter , PASCO, William, Richard
IPC分类号： B32B31/18
CPC分类号： B29C66/43 , B29C65/10 , B29C65/1448 , B29C65/203 , B29C65/2046 , B29C65/2076 , B29C65/224 , B29C65/229 , B29C65/7433 , B29C65/7439 , B29C66/032 , B29C66/1122 , B29C66/1142 , B29C66/137 , B29C66/71 , B29C66/7371 , B29C66/73711 , B29C66/73713 , B29C66/80 , B29C66/81419 , B29C66/81815 , B29C66/81871 , B29C66/8221 , B29C66/8223 , B29C66/8226 , B29C66/8227 , B29C66/8242 , B29C66/83433 , B29C66/843 , B29C66/8432 , B29C2793/00 , B29K2023/065 , B29K2067/00 , B29K2067/003 , B29K2077/00 , B29K2995/005 , B29K2995/0053
摘要： Un dispositif de soudage utilise un ruban conducteur (40) qui est chauffé en dessus de la température de fusion de couches de matériaux plastiques laminaires (90, 91) maintenues et serrées par des mâchoires de serrage (64, 66). Ces mâchoires (64, 66) sont plus froides que la température de fusion des couches (90, 91) qui sont serrées par les mâchoires (64, 66) de manière à souder localement les couches (90, 91) en fondant leurs bords proéminants à une température prédéterminée et pendant un laps de temps prédéterminé au moyen de l'énergie électrique traversant le ruban (40). Lorsque le soudage est complet et après son refroidissement les mâchoires (64, 66) sont écartées pour libérer les couches soudées (90, 91). Les bords des mâchoires (64, 66) opposés au ruban chauffé (40) forment entre eux un angle sensiblement droit et sont écartés de 1,2 à 1,98 mm.

29. 发明专利

JP2016513250A 漏水検知可能なジオメンブレンライナーならびに形成のための方法および装置审中-公开
标题翻译：泄漏检测方法和装置可以土工膜衬垫与地层
公开(公告)号：JP2016513250A
公开(公告)日：2016-05-12
申请号：JP2015556954
申请日：2014-01-21
申请人：ジーエスイーエンバイロンメンタル、エルエルシー , ジーエスイーエンバイロンメンタル、エルエルシー
发明人：ヤングブラッド、ジミー、ゴードン , ギャラガー、デイヴィッド、ジェイムズ , ジンメル、エドワード、ジョゼフ
IPC分类号： G01M3/16
CPC分类号： B29C66/435 , B29C65/02 , B29C65/20 , B29C65/7439 , B29C65/7861 , B29C65/8276 , B29C66/02241 , B29C66/1122 , B29C66/232 , B29C66/304 , B29C66/43 , B29C66/71 , B29C66/723 , B29C66/73141 , B29C66/73187 , B29C66/81417 , B29C66/81422 , B29C66/81427 , B29C66/8167 , B29C66/8221 , B29C66/8324 , B29C66/8362 , B29C66/843 , B29C66/86523 , B29C2793/0054 , B29L2007/005 , E02B3/10 , E02B3/121 , E02B5/02 , E02D31/004 , G01M3/40 , Y10T156/10 , Y10T156/1715 , B29K2023/065
摘要：封じ込めシステムのためのジオメンブレンライナーは、ライナーパネルを含み、かつ、重ね合わせた縁部にある継ぎ目で接続され、上側パネルが継ぎ目全域で非導電性である導電性の下面を有する。継ぎ目の熱溶着は、継ぎ目の形成前に上側パネルの導電性の下面を遮る突出部付きの加熱装置を有する溶着装置により達成される。このような継ぎ目は、封じ込めシステムの底部の少なくとも一部を覆う複数のライナーパネルを有するライニングを施した封じ込めシステムで別個に、または選択的に使用され得る。ライナーパネルは、導電性の下面を有し、隣接するパネルと重なり、導電部材は、隣接するパネルの下に置かれ、両方の隣接するパネルの導電性の下面に接触して、隣接するパネルの導電性の下面の間に電気的接続を提供する。
摘要翻译：土工膜衬垫用于容纳系统包括：衬垫板，并且在边缘处的接缝重叠连接，上部面板具有导电性，其是不导电的在接缝区域的下表面上。热焊缝是通过在形成接缝的导电顶部面板的下表面之前焊接具有带有突起，阻止加热装置装置来实现。这种接缝是分别与多个衬垫板的至少覆盖所述的密封系统的底部的一部分，或者可以选择性地使用内衬容纳系统。该衬垫板具有导电性的下表面，与相邻的面板重叠时，所述导电构件被放置在相邻的面板下，无论是在与导电相邻板，相邻板的下表面接触提供导电的下表面之间的电连接。

30. 发明专利

JP5072839B2 Improved cutting element for a sealing system 有权
公开(公告)号：JP5072839B2
公开(公告)日：2012-11-14
申请号：JP2008519313
申请日：2006-05-31
申请人：シヤンクリン・コーポレイシヨン
发明人：キング，フランシス・エツクス，ジユニア , クリスマン，ケネス , スミス，ミツチエル・ダブリユ , バン，ジヨナサン
IPC分类号： B65B51/10
CPC分类号： B26D1/025 , B26D1/0006 , B26D7/10 , B26D7/2628 , B26D2001/006 , B29C65/18 , B29C65/305 , B29C65/7439 , B29C65/7873 , B29C66/1122 , B29C66/133 , B29C66/4312 , B29C66/4322 , B29C66/73921 , B29C66/80 , B29C66/8122 , B29C66/81261 , B29C66/8167 , B29C66/8182 , B29C66/81821 , B29C66/8242 , B29C66/8246 , B29C66/83221 , B29C66/83423 , B29C66/836 , B29C66/849 , B29C66/91212 , B29C66/91231 , B29C66/91421 , B29C66/91431 , B29C66/9161 , B29C66/961 , B65B9/073 , B65B51/18 , B65B61/005 , Y10T156/1054 , Y10T156/108 , Y10T156/1084 , Y10T156/1313 , B29K2905/02
摘要： The present invention describes a blade assembly for use with side-sealing and lap-sealing machines, which are used to seal thermoplastic film. Briefly, the cutting element is oval in shape, and has its entire outer edge profiled. This provides four distinct cutting surfaces, depending on the mounting orientation of the cutting element in the machine. This cutting element is held against a heating block, and its temperature is continuously monitored by a temperature sensor. The sensor is spring-loaded to insure solid contact with the cutting element, and thus, accurate temperature measurements. This entire assembly is then encased in insulation. Additionally, the cutting element is mounted on an adjustable platform, which permits vertical adjustments relative to the film. Thus, the specific portion of the cutting element which actually engages the film can be adjusted to improve the cutting quality or further extend the useful life of the cutting element.

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