CN103189185B - 用于借助超声波热封包装材料的热封钳口 - Google Patents

用于借助超声波热封包装材料的热封钳口 Download PDF

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CN103189185B
CN103189185B CN201180052577.1A CN201180052577A CN103189185B CN 103189185 B CN103189185 B CN 103189185B CN 201180052577 A CN201180052577 A CN 201180052577A CN 103189185 B CN103189185 B CN 103189185B
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heat
sealing
rectangle
jaw
exterior feature
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CN103189185A (zh
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J·伊佩斯
U·维杜威尔特
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Robert Bosch GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
    • B29C65/087—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using both a rotary sonotrode and a rotary anvil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
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    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
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    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8227—Transmission mechanisms using springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B29C66/83513—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums cooperating jaws mounted on rollers, cylinders or drums and moving in a closed path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
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    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
    • B29C66/92611—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by controlling or regulating the gap between the joining tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B65B51/225—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by ultrasonic welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/306—Counter-rotating devices

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  • Mechanical Engineering (AREA)
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  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

本发明涉及一种用于借助超声波热封包装材料的热封钳口，包括能量方向发生器（28），它能够为了热封而通过包装材料与配对面（26）形成接触，其中，所述能量方向发生器（28）具有一个基本上格栅形或菱形的热封型廓（36）。

Description

用于借助超声波热封包装材料的热封钳口
技术领域
本发明涉及一种用于借助超声波热封包装材料的热封钳口。
背景技术
这样的根据此种类型的装置例如由US2004/0011452A1已知。在那里说明了一种基于超声波的用于止锁包装的横向热封装置，它由一个旋转的超声焊极和一个旋转的铁砧组成。
发明内容
按照本发明，提出了一种用于旋转的铁砧的热封钳口，用于借助超声波热封包装材料，包括能量方向发生器，其能够为了热封而通过包装材料与旋转的配对面形成接触，其中，所述能量方向发生器具有一个基本上格栅形或菱形的热封型廓，其中，所述能量方向发生器设有一个半径、相对于至少一个相对于热封型廓的表面平行定向的底面突出并且与侧面连接，及所述侧面相对于所述热封型廓的表面倾斜一个角度，其中，所述侧面以倒圆方式过渡到底面中。
本发明的任务在于，提供一种热封钳口，它改善热封质量。该任务通过上述技术方案中的特征解决。
按照本发明的用于借助超声波热封包装材料的热封钳口相对于此具有优点，即基于所选择的热封型廓实现在热封刀具之间的接触时间的延长，由此改善热封质量。用于借助超声波热封包装材料的热封钳口包括能量方向发生器，它能够为了热封通过包装材料与配对面形成接触。按照本发明，能量方向发生器具有一个基本上格栅形或菱形的热封型廓。
在一种适宜的扩展构型中规定，能量方向发生器设有一个半径。由此保护包装材料。此外能够实现高的热封缝强度和密封性。
在一种适宜的扩展构型中规定，侧面相对于所述热封型廓的表面倾斜一个角度。由此能够与能量方向发生器的倒圆的实施方式结合来优化熔液流。
在一种适宜的扩展构型中规定，侧面以倒圆方式过渡到底面中。这有助于保护包装材料的热封并且抵抗可能的生产残余的附着。
在一种适宜的扩展构型中规定，格栅形或菱形的热封型廓由多个基本上相同大小的矩形组成。由此实现特别均匀的力施加，由此实现具有保持不变的高强度的热封缝。
在一种适宜的扩展构型中规定，矩形相对于所述热封钳口的侧边这样地设置，使得得到能量方向发生器的曲折形的走向。由此尤其是能够实现接触面的增大，由此改善用于热封的能量输入。
在一种适宜的扩展构型中规定，矩形被这样地设置，使得矩形的底面相对于所述热封钳口的侧边以不同于零的角度、优选45°的角度设置。由此得到曲折形的能量方向发生器的平行于侧边的基本上平行的走向，从而得到密封的热封。
在一种适宜的扩展构型中规定，矩形的对角线长度被这样地被选择，使得矩形的双倍的对角线长度小于或等于热封型廓的宽度。由此实现高的密封性，因为两个矩形始终实现横向缝热封。
在一种适宜的扩展构型中规定，热封型廓具有两个分面，它们通过一个间隙相互分开。在该间隙中集成一个切割刀，而另两个分面用于两个要相互分开的袋包装的横向缝热封。
其它的适宜的扩展构型由下述说明书得出。
附图说明
用于借助超声波加工包装材料的装置的实施例在附图中示出并且在下面被详细说明。其示出：
图1示出用于加工包装材料的装置的立体正视图；
图2示出铁砧的热封型廓的俯视图；
图3示出根据2的热封型廓的剖视图；
图4示出根据图2的热封型廓的细节视图；
图5以细节视图示出根据图2的能量方向发生器的剖视图；
图6示出第一热封型廓的立体视图；
图7示出根据图6的视图的放大细节视图；以及
图8示出具有较平整的侧壁的两个热封型廓的俯视图。
具体实施方式
在根据图1的装置中，一个超声焊极10在两侧被各一个轴承端盖14可旋转支承地导向。用于超声焊极10的两个轴承端盖14在装置8的上侧通过一个上支撑装置22——上支撑装置在此例如被构造为支撑杆——侧向地相互连接。同样可旋转地支承的铁砧12与超声焊极10配合作用。铁砧12支承在两个轴承端盖16中。超声焊极10的轴承端盖14与相应设置在其下的铁砧12的轴承端盖16通过耦合装置20连接。铁砧12的两个轴承端盖16又通过一个下支撑装置24侧向地相互连接，下支撑装置例如被构造为支撑管。在耦合装置20的关于超声焊极10或铁砧12的旋转轴线相对置的侧上分别设置力装置18，必需的热封力可以通过力装置施加到超声焊极10和铁砧12的热封面上。在力装置18上方分别设置调节装置30。由此允许校准热封力或热封间隙。
超声焊极10和铁砧12分别具有四个热封面24、26。超声焊极10的热封面26具有一个光滑的、面状的表面。铁砧10的热封面24根据下面的图详细地被说明。根据图2，铁砧10的矩形的热封面24由两个矩形的分面31组成，这些分面被一个细长的间隙30相互分开。两个分面31分别设有专门的热封型廓36。热封型廓36基本上矩形地或菱形地构成。各个形成矩形热封型廓36的矩形38的底面相对于侧边35倾斜大约45°地定向，由此实现热封长度的延长。
在根据图3的剖视图中可见，能量方向发生器28相对于底面42以确定的高度46突出。能量方向发生器28是热封钳口33的部分。能量方向发生器28在热封过程中用作超声焊极10的热封面26的配对面。根据图5可见，能量方向发生器28的在超声焊极10的方向上突出的尖端以半径29构成。此外，能量方向发生器28以角度40向着底面42倾斜。能量方向发生器28的以角度40倾斜的侧面44以一个未详细确定的半径过渡到底面42中。根据图4，所说明的几何结构以放大的视图绘出。热封型廓36的分面31具有一个热封宽度32，间隙30具有一个间隙宽度32。
为了进一步澄清根据图2至5的图，在图6和7中示出立体图。在此，侧面44比较强地倾斜，大约以大约60°的角度40倾斜。在根据图8的实施例中，侧面44以大约120°的角度40倾斜。
用于借助超声波加工包装材料的装置8如下地工作。它包括作为重要元件的超声焊极10，超声焊极用作相对于铁砧12的焊接刀具。电网电压由发电机转化为高频电压。在发电机上连接一个声波换能器(转换器)，它又将电能转化为高频的机械振动。振幅借助振幅变换段(Booster)加强或减小并且由转换器传递到超声焊极10上。铁砧12是无源工件。待焊接的工件、例如包装材料被夹紧在铁砧12和超声焊极10之间，以便能够实现超声焊极10和包装材料之间的能量过渡。铁砧12吸收超声焊极10的超声波振动。不仅超声焊极10而且铁砧12相反地旋转并且几乎被实施为热封辊。它们具有多个热封面，在这些热封面中也可以集成用于切断包装材料的切割功能。根据包装材料的类型必须以高的精度调节热封间隙。
装置8用于软管袋的横向缝的热封。借助第一分面31对在后的袋的起始横向缝进行热封，借助一个设置在间隙30中的切割刀将两个袋相互分开，借助第二分面31对在前的袋的末端横向缝热封。
在超声波热封时可以仅在超声焊极10、要热封的薄膜和铁砧12的能量方向发生器28之间的接触时间期间加入能量。因此有意义的是，能量输入尤其是在所描述的旋转的热封方法中优化。这通过所描述的热封型廓36进行。所描述的能量方向发生器28的格栅形结构增大接触面，其方式是它们曲折形地沿着热封型廓36的侧边35延伸并且由此构造得比在现有技术中的沿着侧边35的平行的直线的实施方式更长。通过所示的格栅形的、华夫饼干状的结构此外实现热封力的均匀分布。为了实现密封的热封，沿着分面31的热封宽度32始终设置两个矩形38。
能量方向发生器28的以半径29倒圆的表面与以角度40倾斜的侧面44的配合作用已经表明对于熔液流的发散是特别有利的。
宽度32优选位于6mm的数量级中。间隙30的间隙宽度34优选位于3mm的数量级中。由此热封钳口33的总宽度位于15mm的数量级中。能量方向发生器28的尖端以高度46伸出超过矩形38的底面42并且大约位于0.5mm的数量级中。半径29大约位于0.1至1mm之间的范围中。角度40优选位于20°和120°之间的范围中。热封钳口33优选由钢制成。热封钳口33具有用于固定装置例如螺栓的相应接收部，具有铁砧的热封钳口33能够通过固定装置固定。

Claims (7)

1.用于旋转的铁砧(12)的热封钳口，用于借助超声波热封包装材料，包括能量方向发生器(28)，其能够为了热封而通过包装材料与旋转的配对面(26)形成接触，其特征在于，所述能量方向发生器(28)具有一个基本上格栅形或菱形的热封型廓(36)，其中，所述能量方向发生器(28)设有一个半径(29)、相对于至少一个相对于热封型廓(36)的表面平行定向的底面(42)突出并且与侧面(44)连接，及所述侧面(44)相对于所述热封型廓(36)的表面倾斜一个角度(40)，其中，所述侧面(44)以倒圆方式过渡到底面(42)中。
2.根据权利要求1的热封钳口，其特征在于，所述格栅形或菱形的热封型廓(36)由多个基本上相同大小的矩形(38)组成。
3.根据权利要求2的热封钳口，其特征在于，矩形(38)关于所述热封钳口(33)的侧边(35)这样地设置，使得得到能量方向发生器(28)的曲折形的走向。
4.根据权利要求2或3的热封钳口，其特征在于，矩形(38)被这样地设置，使得矩形(38)的底面相对于所述热封钳口(33)的侧边(35)以不同于零的角度设置。
5.根据权利要求2或3的热封钳口，其特征在于，矩形(38)的对角线长度被这样地选择，使得矩形(38)的双倍的对角线长度小于或等于热封型廓(36)的宽度(32)。
6.根据权利要求1至3之一的热封钳口，其特征在于，热封型廓(36)具有两个分面(31)，它们通过一个间隙(30)相互分开。
7.根据权利要求4的热封钳口，其特征在于，所述矩形(38)的底面相对于所述热封钳口(33)的侧边(35)以45°的角度设置。
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