WO2007131574A1 - Ensacheuse destinée à des fins d'emballage - Google Patents

Ensacheuse destinée à des fins d'emballage Download PDF

Info

Publication number
WO2007131574A1
WO2007131574A1 PCT/EP2007/002734 EP2007002734W WO2007131574A1 WO 2007131574 A1 WO2007131574 A1 WO 2007131574A1 EP 2007002734 W EP2007002734 W EP 2007002734W WO 2007131574 A1 WO2007131574 A1 WO 2007131574A1
Authority
WO
WIPO (PCT)
Prior art keywords
secondary part
bag machine
holder
machine according
housing
Prior art date
Application number
PCT/EP2007/002734
Other languages
German (de)
English (en)
Inventor
Roman Kammler
Walter Baur
Original Assignee
Rovema Verpackungsmaschinen Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rovema Verpackungsmaschinen Gmbh filed Critical Rovema Verpackungsmaschinen Gmbh
Publication of WO2007131574A1 publication Critical patent/WO2007131574A1/fr

Links

Classifications

    • 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
    • B65B51/303—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes reciprocating along only one axis
    • 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
    • B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
    • B65B65/02—Driving gear
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures

Definitions

  • the invention relates to packaging machine construction and there a bagging machine for packaging purposes, in particular a vertical bagging machine and a horizontal bagging machine.
  • a vertical tubular bag machine with a withdrawn from a supply roll by means of a deduction sheet is known.
  • a forming shoulder is used for forming the film web.
  • a longitudinal sealing device is provided for welding the longitudinal edges of the film web and for producing a longitudinal seam of the film tube.
  • a transverse sealing device with two sealing jaws movable relative to one another is used to produce transverse seams on the formed film web and a separating device for separating the produced bags from the film web.
  • a mechanism is provided for holding the sealing jaws and a drive for moving the transverse sealing device to move the sealing jaws relative to each other.
  • the transverse sealing device to move up and down to allow rapid transverse welding of a continuously moving film tube has in the known vertical bagging machine, the drive two linear motors, of which the first linear motor for a movement of the transverse sealing device in a first direction (the vertical) is provided, and the second linear motor for exerting a movement in a second direction (the horizontal) is used to move a sealing jaw in this direction, or both sealing jaws via a transmission to induce an opposite movement.
  • the linear motors are connected to each other via a connection, and each linear motor consists of a primary part and a secondary part. Transmissions for producing an opposing sealing jaw movement are known in great variety.
  • the known bag machine with a linear motor has the disadvantage that during operation of the motor, the secondary part, which has magnets, heats and expands. As a result, the holder which holds the secondary part and with which the secondary part is firmly connected, curves. This in turn leads to a stiffness and associated with a relatively short life of the drive.
  • the secondary part consists of a series of juxtaposed, separate secondary part segments, wherein the secondary part segments are each connected by means of a fastening with a holder of the secondary part.
  • the proposed innovation has the advantage that, in the case of different expanding components as a result of heating the with Magnet equipped secondary part does not come to a distortion or deformation of the holder. Since the secondary part is warmer than the holder supporting it, the secondary part has a greater thermal expansion than the holder, provided that the materials of the secondary part and the holder are the same or the secondary part has a greater coefficient of linear expansion than the holder. Solely by a loose juxtaposition of the secondary segment segments it is allowed to press against each other after a thermal expansion to shoot the sum of all gaps between them, which occur solely for assembly reasons, and to compensate for a total of a greater linear expansion. There is thus no curvature of the holder, which also usually expands less strongly, since it is not as warm as the secondary segment segments.
  • Another advantage of the proposed innovation is that the heat development of the secondary part is permitted. A technical effort to dissipate the heat is avoided. Nevertheless, a long life of the components, whose leadership depends on a location-specific holder, achieved because it is not warped, and thus no stiffness of the moving components occurs. In addition, the welds are created reproducibly and evenly.
  • the term secondary segment is to be understood as meaning a plurality of magnets in a unit or in each case a single magnet.
  • it is advantageous not individually to connect the magnets with the bracket, but in each case a group of magnets with the bracket to screw or glue.
  • a screwing by means of a single screw for a group which is bounded laterally, two screws next to each other or a single narrow glue track transverse to the longitudinal extent of the secondary part is advantageous. This allows a free expansion of the secondary part segment without the holder being curved thereby.
  • the primary part has current-carrying coils on. His warming is especially strong. However, it can expand freely because it sits on a guide and is movable there.
  • each secondary segment is connected via its own bottom part or a separate housing with the holder (claim 5). Then the material of the bottom part or of the housing and an intervening gap for the mentioned length expansions are relevant.
  • the bottom parts or the housing at room temperature tight or forming a gap to each other, and the material of the bottom parts or the housing has a smaller, in particular significantly lower coefficient of linear expansion than the material of the holder, so the holder warps also not with heating of the secondary part and heating by heat conduction to the holder.
  • the holder expands at a done by operation of the secondary part heating by a significantly greater difference in length than the secondary part.
  • Figure 1 is a side view of a vertical bagging machine, the transverse sealing device by means of a drive in the vertical direction moves and also opened and closed;
  • Figure 2 in a side view a cross as a holder for a
  • FIG. 4 is a sectional view of the cross of FIG. 3 cut along AA in FIG. 3;
  • FIG. 5 shows a side view of the rear side of the cross of FIG. 3, wherein a secondary part of a second linear motor, also composed of separate secondary part segments, is fastened to the horizontally oriented beam in order to move a primary part along horizontally oriented rails, and additionally with the transverse sealing device of the vertical one Flow wrapper of Figure 1, the sealing jaws moved by a horizontal movement of the primary part to each other or separated from each other;
  • Figure 6 is a sectional view of the secondary part for the actuation of the transverse sealing device of Figure 5 at a low operating temperature of the secondary part.
  • FIG. 7 is a sectional view of the secondary part of FIG. 6, but at a higher operating temperature
  • FIG. 9 shows a side view in a second exemplary embodiment of a drive with a vertically movable frame for driving a transverse sealing device of a vertical tubular bag machine, with two linear motors whose secondary parts each have secondary part segments glued to a holder, and
  • Figure 10 in a side view in another embodiment, a horizontal bag machine whose mutually movable transverse sealing jaws and longitudinal sealing jaws are driven by means of a linear motor with separate secondary segment segments.
  • a vertical tubular bag machine 1 with a withdrawn from a supply roll 2 by means of a trigger 3 to a Umlenkrol- Ie 38 deflected film web 4, serves a forming shoulder 5 for forming the film web 4 to a film tube 6 and a format tube 7 for receiving and filling the film tube 6 ( Figure 1).
  • a longitudinal sealing device 8 is provided for welding the longitudinal edges of the film web 4 and for producing a longitudinal seam 9 of the film tube 6.
  • a transverse sealing device 10 with two mutually movable sealing jaws 1 1, 12 is used to produce transverse seams 13 on the film tube 6 and a separator 14 for separating the generated tubular bag 15 from the film tube 6.
  • a mechanism connected to a fastening 39 16 holds the sealing jaws 1 1, 12th ( Figures 2 to 8).
  • the transverse sealing device 10 is opened and closed and moved up and down to produce two transverse seams 13 simultaneously and along with the continuously moving down film tube 6.
  • the sealing jaws 1 1, 12 are closed. Subsequently, they are separated from each other and the transverse sealing device 10 is moved up to start at a distance of a bag length again a welding of transverse seams 13 in the compressed film tube 6.
  • a drive 17 for moving the transverse yaw device 10 has two linear motors 18, 19.
  • the first linear motor 18 is provided for movement of the transverse sealing device 10 in the vertical 20.
  • the second linear motor 19 serves to exert a movement in the horizontal 21 in order to move the sealing jaws 1 1, 12 in this direction in opposite directions.
  • both sealing jaws 1 1, 12 caused by a known conventional transmission 22 to an opposite movement, when a primary part 26 of the second linear motor 19 is reciprocated.
  • the linear motors 18, 19 are connected to one another via a cross 23 serving as a holder 53.
  • Each linear motor 18, 19 consists of a primary part 24, 26 and a secondary part 25, 27.
  • the two bars 28, 29 of the cross 23 are arranged transversely to one another. On the two opposite sides of the holder 53 ⁇
  • a guide 30, 31 parallel to a beam 28, 29 is provided on the opposite sides.
  • a primary part 24 of the first linear motor 18 is fixed to a stationary holder 32.
  • the secondary part 25 of this linear motor 18 is mounted on one side of the cross 23.
  • a secondary part 27 of the other linear motor 19 is mounted on the other side of the cross 23.
  • the primary part 26 of the second linear motor 19 is movable relative to this secondary part 27 and connected to the transverse sealing device 10 in order to open and close it.
  • each jwewewe four wagons 33 for moving the primary parts 24, 26 along the guides 30, 31 are provided.
  • the secondaries 25, 27 are connected to the cross 23 to stabilize it.
  • the cross 23 and the guides 30, 31 are made of a single piece of aluminum, each guide 30, 31 consists of two mutually parallel rails 34, 35.
  • the cross 23 has on the opposite sides in each case a material recess 36 with a limiting edge 37 on this.
  • the secondary parts 25, 27 extend over the beams 28, 29 and are each glued between two rails in a material recess 36.
  • the secondary parts 25, 27 are hardly heated in contrast to the primary parts 24, 26, so that the cross 23 does not experience the accuracy of movement of the sealing jaws 11, 12 longitudinal extent as a result of excessive heating.
  • the two secondary parts 25, 27 of the support 53, which is designed as a cross 23, consist of a series of separate secondary part segments 40 arranged next to each other.
  • the secondary part segments 40 are connected to the cross 23 by means of three fastening means 41 designed as screws.
  • Each secondary segment 40 is connected to the cross 23 via a bottom part of a housing 42.
  • the bottom parts, and thus also the housings 42, are close to each other at room temperature, ie in the case of linear motors 18, 19 which are not yet in operation (FIG. 6).
  • the material of the housing 42 together with respective bottom part is steel. This has a lower coefficient of linear expansion than the material of the cross 23, which is aluminum.
  • the cross 23 expands more to form gaps 43 than the secondary parts 25, 27 (FIGS. 7 and 8).
  • the holder 53 equipped with the secondary parts 25, 27 does not warp, so that the guides 30, 31 remain exactly aligned.
  • the sealing jaws 1 1, 12 are moved exactly and each similar transverse seams 13 generated as a result of a similar welding pressure on the film tube 6.
  • two linear motors 18, 19 are also used to move a transverse sealing device 10 of a vertical tubular bag machine.
  • the secondary part 25, 27 of the linear motors 18, 19 of a series juxtaposed, separate secondary segment 40 wherein the secondary part 40 segments in each case by means of a designed as a central adhesive trace attachment 41 with a holder 53 of the secondary part 25, 27 are connected.
  • Each adhesive track extends transversely to the extension of a secondary segment 40 and is only about 10 mm wide to allow the secondary segment 40 a smaller extent than the holder 53 made of magnesium.
  • Each glue track fulfills the function of the screws shown in the first embodiment as a fastening 41 on the holder 53.
  • each secondary segment 40 contains a plurality of magnets and is surrounded by a housing 42, so that the secondary segment segments 40 can be assembled in a simple manner into secondary parts 25, 27.
  • the function of the column 43 is analogous to the first exemplary embodiment, as is the function of the guides 30, 31 for the primary parts 24, 26.
  • the bag machine is designed as an otherwise conventional horizontal bag machine 50.
  • a film web 4 is provided with a central fold 48 and moved by means of a trigger 3 in a horizontal direction of film transport 47.
  • the sealing jaws 1 1, 12 are actuated by means of a stationary linear motor 19 as in the previous embodiments to produce transverse seams 13.
  • the longitudinal sealing jaws 51 are also welded stationary by means of a linear motor 19, wherein a likewise composed of separate secondary segment 40 secondary securement 27 serves to achieve a smooth, location-accurate operation of the primary part 26 of the linear motor 19 along a holder 53 of the secondary part 27.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Package Closures (AREA)

Abstract

Une ensacheuse destinée à des fins d'emballage, notamment une ensacheuse verticale (1) ou une ensacheuse horizontale (50), comporte un moteur linéaire (18, 19) destiné à déplacer une mâchoire (11, 12, 51) ou des mâchoires décrivant des mouvements opposés (11, 12, 51) pour le soudage d'une pellicule en bande (4), le moteur linéaire étant composé d'une partie primaire (24, 26) et d'une partie secondaire (25, 27). Pour éviter une déformation d'un élément de fixation (53) de la partie secondaire (25, 27) en cas de chauffage de la partie secondaire (25, 27), la partie secondaire (25, 27) est composée d'une rangée de segments de partie secondaire (40) séparés, disposés les uns contre les autres, les segments de partie secondaire (40) étant respectivement connectés à l'élément de fixation (53) de la partie secondaire (25, 27) au moyen d'une attache (41).
PCT/EP2007/002734 2006-05-12 2007-03-28 Ensacheuse destinée à des fins d'emballage WO2007131574A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610022191 DE102006022191A1 (de) 2006-05-12 2006-05-12 Beutelmaschine für Verpackungszwecke
DE102006022191.5 2006-05-12

Publications (1)

Publication Number Publication Date
WO2007131574A1 true WO2007131574A1 (fr) 2007-11-22

Family

ID=38180738

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/002734 WO2007131574A1 (fr) 2006-05-12 2007-03-28 Ensacheuse destinée à des fins d'emballage

Country Status (2)

Country Link
DE (1) DE102006022191A1 (fr)
WO (1) WO2007131574A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19630420A1 (de) * 1996-07-27 1998-01-29 Rovema Gmbh Schlauchbeutelmaschine und Verfahren zum Betreiben der Schlauchbeutelmaschine
EP0999134A2 (fr) * 1998-11-03 2000-05-10 Klockner Bartelt, Inc. Machine d'emballage modulaire avec un dispositif de contrôle de la tension d'une bande
US20010035686A1 (en) * 2000-04-07 2001-11-01 Hwang Ji Hyun Linear motor
EP1168586A1 (fr) * 2000-07-01 2002-01-02 Inventio Ag Moteur a magnets permanents et installation d'un élévateur
WO2002019496A2 (fr) * 2000-08-31 2002-03-07 Etel Sa Unite d'un moteur lineaire et procede pour le montage de cette unite
EP1233501A2 (fr) * 2001-02-16 2002-08-21 Canon Kabushiki Kaisha Moteur linéaire, étage et systéme d'exposition pourvu de ce moteur linéaire et sa méthode de fabrication
US20040155535A1 (en) * 2002-04-23 2004-08-12 Mitsubishi Denki Kabushiki Kaisha Linear motor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19503511C5 (de) * 1995-02-03 2010-11-04 Siemens Ag Synchron-Linearmotor
DE19549785B4 (de) * 1995-09-25 2006-02-16 Rovema - Verpackungsmaschinen Gmbh Verschließvorrichtung für einen Verpackungsvorgang
DE19547686A1 (de) * 1995-12-20 1997-06-26 Indramat Gmbh Elektrischer Synchron-Linearmotor und Verfahren zur Ermittlung des Kommutierungsoffsets eines Linearantriebs mit einem solchen elektrischen Synchron-Linearmotor
DE10354040A1 (de) * 2003-11-19 2005-06-02 Rexroth Star Gmbh Linearmotor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19630420A1 (de) * 1996-07-27 1998-01-29 Rovema Gmbh Schlauchbeutelmaschine und Verfahren zum Betreiben der Schlauchbeutelmaschine
EP0999134A2 (fr) * 1998-11-03 2000-05-10 Klockner Bartelt, Inc. Machine d'emballage modulaire avec un dispositif de contrôle de la tension d'une bande
US20010035686A1 (en) * 2000-04-07 2001-11-01 Hwang Ji Hyun Linear motor
EP1168586A1 (fr) * 2000-07-01 2002-01-02 Inventio Ag Moteur a magnets permanents et installation d'un élévateur
WO2002019496A2 (fr) * 2000-08-31 2002-03-07 Etel Sa Unite d'un moteur lineaire et procede pour le montage de cette unite
EP1233501A2 (fr) * 2001-02-16 2002-08-21 Canon Kabushiki Kaisha Moteur linéaire, étage et systéme d'exposition pourvu de ce moteur linéaire et sa méthode de fabrication
US20040155535A1 (en) * 2002-04-23 2004-08-12 Mitsubishi Denki Kabushiki Kaisha Linear motor

Also Published As

Publication number Publication date
DE102006022191A1 (de) 2007-11-15

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