CN1064306C - 管形袋包装机的横向密封装置 - Google Patents

管形袋包装机的横向密封装置 Download PDF

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CN1064306C
CN1064306C CN95196593A CN95196593A CN1064306C CN 1064306 C CN1064306 C CN 1064306C CN 95196593 A CN95196593 A CN 95196593A CN 95196593 A CN95196593 A CN 95196593A CN 1064306 C CN1064306 C CN 1064306C
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CN1168650A (zh
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霍斯特·勒文塔尔
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Schweizerische Industrie Gesellschaft
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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
    • 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
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • 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
    • B29C66/816—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 mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—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 mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • 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
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • 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
    • B29C66/8224—Chain or sprocket drives
    • 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
    • B29C66/8226—Cam mechanisms; Wedges; Eccentric mechanisms
    • 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
    • B29C66/8226—Cam mechanisms; Wedges; Eccentric mechanisms
    • B29C66/82263—Follower pin or roller cooperating with 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
    • B29C66/82—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
    • B29C66/83541—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement
    • B29C66/83543—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement cooperating flying jaws
    • 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
    • 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
    • B29C66/9261—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
    • 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
    • B29C66/9261—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
    • B29C66/92651—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 using stops
    • B29C66/92655—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 using stops by using several stops
    • 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
    • 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
    • B29C66/8223—Worm or spindle mechanisms

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

配置在传送管形袋的中心平面两侧的两个支架以平行取向由曲柄机构转动。密封夹头或匹配夹头在支架中被垂直导向，并由靠着制动件的弹簧41预加应力。止动滚子侧向突出于夹头并冲击支承条，随后夹头彼此接触。支承条由控制器移动，彼此相对地移动，使得以可控的方式使夹头的垂直运动分量减速。与此相反，在夹头彼此移离之前，它们被加速到要求的垂直速度，以便缓和地碰到制动件。该装置工作时无噪声，对材料是缓冲地接触，并适合于各种工作条件。

Description

管形袋包装机的横向密封装置
从美国专利No．2467879中已知一种管形袋的横向密封装置，两个配合的横密封夹头分别有弹性地固定在一个支承件上，该支承件利用平行四边形曲柄机构分别沿圆弧形路径旋转。在旋转时，两个密封夹头仍然彼此平行。这样便可在包装管的确定的输送截面上形成密封接缝。和常规的柱面扇形的旋转密封夹头例如按照EP-A-399948的夹头相比可以以更快节奏实现密封。然而该横向密封装置的噪声比常规横向密封装置大。
本发明的目的是改进开头说的那种横向密封装置，使其在操作期间产生较小的噪声。结合权利要求书的特征可以实现上述目的。
下面参照附图说明本发明的实施例。这些附图是：
图1是横向密封装置的示意侧视图；
图2是图1装置的变型例部分。
图1示出本发明的装置10的侧视图。采用未示出的装置例如EP-A399948的装置输送包装管1，该包装管按规定的间隔包含产品2。采用装置10在管1的中心平面4上在产品2之间形成密封接缝3，并在中间切开该接缝。各个包装件5沿传送方向A通过传送带6传走。
在彼此分开一定距离的两个上部轴和两个下部轴11、12、13、14上，总共装有四个由驱动马达19完全同步进行驱动的曲柄轮15～18。上部轮15、16反时针方向转动，而下部轮顺时针转动。马达19和轮15～18之间的传动连接象征性地用链20和齿轮系21表示。轮15～18到轴11～14的半径22至少是几乎相同的，该轮上装有轴线平行的销23～26。上部支承件27可回旋地装在上部轮15、16的销23、24上，使得它与曲柄半径22和轴11、12之间的连接线一齐至少近似地形成平行四边形，因而当轮15、16转动时支承件27平行于自身地旋转。下部支承件28同样也固定在销25、26上。上部支承件27和下部支承件在其后端面上分别装有横向杆29、30。该横向杆29、30在支承件27、28上受操纵，可在高度方向移动，并由螺栓31调节。在适当位置，横向杆29、30也可固定地连接于支承件27、28。
密封夹头37或相对的夹头38在杆29、30受操纵，可在高度方向移动。夹头37、38具有平行的平面密封表面39或相对的表面40，并在向中心平面4的方向受到若干弹簧41的偏压作用。夹头37、38中的一个夹头在其中心具有未示出的刀片，用于在密封期间将管1切开。两个导向杆42固定于夹头37、38，该导向杆凸出于横杆29、30，在其自由端具有螺纹43，调节螺母44拧在该螺纹上。调节螺栓31和螺母44便可以设定轮15～18的在表面39、40达到接触的转动角，因此也设定了进行密封期间通过的路段。另外，采用这些调节装置可以设定弹簧41的偏压以及由此形成的密封压力。作为加压部件可以不用弹簧41而采用加压空气或加压的各种流体。
为防止两个夹头37、38彼此相撞，在两侧分别操纵两个具有平行于中心平面4的平面支承表面50、51的支承条48、49，使其垂直移向中心表面4。在图1的示意图中，从每个支承条48、49上分别伸出腿52。两个腿52利用二根平行四边形的框架彼此连接。该框架在其中心可转动地被固定，通过该框架，两个腿形成两个平行四边形组件。两个腿52之一由控制装置54操作。在所示例子中，该控制装置由刚性连接于轮17的凸轮板55组成，在可转动的双臂杠杆57的一个端部上的滚子56在该凸轮板上滚动。该杠杆57的另一臂上具有细长孔58，肘杆60的一个接头可调节地固定该细长孔中。杆60的另一个接头61连接于一个腿52。从夹头37、38分别伸出制动滚子62。该制动滚子可绕轴线转动地装在夹头37、38上，该轴线平行于中心平面4并垂直于传送方向A。
当曲柄轮转动时，杆29、30彼此相对地但自身平行地在圆形路径上旋转。凸轮板55以相同的节奏移动支承条48、49，使其彼此移离和移近。凸轮板55如此构形和调节装置31、44、58、59如此设定，使得滚子62在垂直于中心平面4的运动部件的相对速度为零或很低时才碰到支承表面50、51，随后夹头37、38才到达管1进行加压接触。在相碰的紧后，使条48、49的相向运动减速，从而使夹头37、38到达管进行缓和的加压接触。随后，使条48、49仍移动稍为进一步彼此移近，使得夹头37、38以弹簧47施加的偏压压在管上。在进一步转动期间，夹头37、38被压入横杆29、30内，直到达到如图1所示的死点。此后，夹头37、38又重新移出，直到螺母44靠在横杆29、30上。仅在此刻之前，条48、49又以较大速度分开，同时受到凸轮板55控制，使得夹头37、38被加速到近似于该夹头在螺母44相碰时所具有的垂直于中心平面4的速度分量。
这种结果可以大大地防止夹头37、38彼此相撞以及螺母44与夹头29、30相撞。这显著减小了噪声，而且因为惯性力的作用减小，所以在材料上的应力降低。这增加了操作可靠性。另外，可以延长夹头彼此压靠期间所经过的路段。这样可以实现较高的通过速度或在管子1上进行较长的更均匀的热传递，由此可以达到更好的密封质量。可以以简单方式调节不同的操作条件，例如管1的包装料膜的不同厚度的操作条件。密封夹头的电流输送简单，因为不需要滑环。
条48、49可以用伺服起重马达65控制，而不同凸轮盘55控制，该马达65可利用未示出的控制装置进行程序控制，其中转角发送器66的输出用作基准信号，该输出连接于轮中的一个轮18上或连接于马达19上。该变型例在图1中用虚线表示。该变型例的优点是，改变程序便可以容易地调节条48、49的运动路径。
作为另外一种调节选择，轴11～14的支承可被成形为横向于中心平面14可调。
图2示出控制装置54的变型例。此时凸轮板55固定于在机器一侧的轮中的一个轮18上。肘杆60操作杠杆71。杠杆71装在轴72上而不能转动，该轴伸过机器的宽度。该杠杆71具有细长孔58，接头59可调节地固定在该孔58中。在两侧上另一杠杆73相应固定在轴72上。利用各个肘杆74，杠杆73连接于另一杠杆75，该杠杆75不能转动地连接于一个平行四边形框架53的枢轴76上。杠杆53直接连接于支承条48、49，以形成一个平行四边形连接。

Claims (10)

1．一种用于管形袋包装机的横向密封装置，用于密封包装管(1)，包括：
配置在包装管(1)中心平面(4)相对两侧的两个驱动单元(15～21)，该驱动单元驱动第一和第二支架(27～30)同步地彼此反向地旋转；
密封夹头(37)，该夹头被引导于第一支架(27～29)中，使得可以由靠着第一制动件(44)的第一接触加压件(41)移动和施加偏压，第一止动部件(62)凸出于该密封夹头；
相对的夹头(38)，该夹头被操纵于第二支架(28，30)中，使得可以由靠着第二制动件(44)的第二接触加压件(41)移动和施加偏压，第二止动部件(62)凸出于该相对的夹头；
两个具有支承表面(50，51)的活动支承件(48，49)；
控制装置(54)，用于移动支承件(48，49)，使得第一和第二止动件(62)操作于有关的支承表面(50，51)上，然后密封夹头(37)和相对的夹头(38)冲击管(1)以便加压接触，并使得随后两个支承件(48、49)相向运动，以便以可控制方式使垂直于密封夹头(37)和相对的夹头(38)二者的中心平面的运动分量减速。
2．如权利要求1所述的装置，其特征在于，控制装置(54)的结构使得支承件(48、49)顶着与支承表面(50，51)接触的第一和第二止动部件(62)进行运动，随后密封夹头(37)升离相对的夹头(38)，并使得密封夹头(37)和相对的夹头(38)被加速到越来越高的横向于中心平面(4)的速度。
3．如权利要求1或2所述的装置，其特征在于，驱动单元(15～21)的结构使得密封夹头(37)的密封侧(39)总是对着相对夹头(38)的相对侧(40)。
4．如权利要求3所述的装置，其特征在于，第一和第二支架(27，28)分别可转动地装在两个被同步驱动旋转的曲柄(15～18)上，该曲柄半径(22)近似相等。
5．如权利要求4所述的装置，其特征在于，支承表面(50，51)的长度至少是曲柄半径(22)的0．05倍，而且支承表面(50，51)是平面。
6．如权利要求1或2所述的装置，其特征在于，两个止动部件(62)被成形为滚子，该滚子侧向凸出于密封夹头(37)或相对的夹头(38)，并且被安装成可绕平行于中心平面(4)的轴转动。
7．如权利要求1或2所述的装置，其特征在于，每个支承件(48，49)分别是平行四边形组件(48，49，53)中的部件，该支承件的一个腿连接于控制装置(54)并由该装置驱动。
8．如权利要求1或2所述的装置，其特征在于，密封夹头(37)和相对的夹头(38)的转动中心相对于中心平面(4)横向可调。
9．如权利要求1或2所述的装置，其特征在于，控制装置(54)具有调节装置(58，59)。
10．如权利要求1或2所述的装置，其特征在于，制动件(44)以及密封夹头(37)与相对的夹头(38)的偏压力是可调的。
CN95196593A 1994-12-06 1995-12-01 管形袋包装机的横向密封装置 Expired - Fee Related CN1064306C (zh)

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EP0796168A1 (de) 1997-09-24
CN1168650A (zh) 1997-12-24
AU3921395A (en) 1996-06-26
JPH10509936A (ja) 1998-09-29
US5771660A (en) 1998-06-30
DE59502284D1 (de) 1998-06-25
WO1996017720A1 (de) 1996-06-13

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