EP2024235A1 - Ensacheuse verticale comportant deux moteurs linéaires - Google Patents

Ensacheuse verticale comportant deux moteurs linéaires

Info

Publication number
EP2024235A1
EP2024235A1 EP07723678A EP07723678A EP2024235A1 EP 2024235 A1 EP2024235 A1 EP 2024235A1 EP 07723678 A EP07723678 A EP 07723678A EP 07723678 A EP07723678 A EP 07723678A EP 2024235 A1 EP2024235 A1 EP 2024235A1
Authority
EP
European Patent Office
Prior art keywords
cross
tubular bag
machine according
bag machine
linear motor
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP07723678A
Other languages
German (de)
English (en)
Inventor
Roman Kammler
Ralf Bardtke
Walter Baur
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rovema GmbH
Original Assignee
Rovema Verpackungsmaschinen GmbH and Co KG
Rovema 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 and Co KG, Rovema GmbH filed Critical Rovema Verpackungsmaschinen GmbH and Co KG
Publication of EP2024235A1 publication Critical patent/EP2024235A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • 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

Definitions

  • the invention relates to packaging machine construction and there a vertical bagging machine. Such packaging machines are well known.
  • DE 195 35 510 A1 discloses a vertical tubular bag machine with a film web drawn off from a supply roll by means of a take-off.
  • a forming shoulder is used for forming the film web into a film tube and a format tube for receiving and filling the film tube.
  • 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 film tube and a separating device for separating the generated tubular bag from the film tube.
  • 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.
  • transverse sealing device In order to open and close the transverse sealing device on the one hand very quickly and on the other hand transverse sealing device to move up and down to allow rapid transverse welding of a continuously moving film tube has in this known flow wrapper the drive on 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 gear to cause 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 drive has the disadvantage that a part of a linear motor is directly connected to a part of the other linear motor, resulting in a low stability of the entire drive.
  • a cross is provided as a connection between the linear motors, the two bars extending transversely to each other.
  • a part of the one linear motor and, on the other hand, a part of the other linear motor are fastened to the different beams.
  • a guide is also provided parallel to a beam.
  • a part of a linear motor is attached to a stationary mount. His other part is attached to one side of the cross.
  • Part of the other linear motor is attached to the other side of the cross, and its other part is movable relative to this part and connected to the transverse sealing device.
  • the proposed innovation has the advantage that the drive is very stable.
  • the two parts of the different linear motors are mounted on opposite sides on the cross and form together with the cross a stable design. While a linear motor is used for moving, preferably for raising and lowering the cross, the transverse sealing device is closed and opened by operating the other linear motor.
  • the bars of the cross hold the perpendicular to each other acting parts of the different linear motors.
  • the assembled cross is relatively light and therefore movable with relatively little drive energy.
  • a stationary primary moves the cross.
  • the power supply and the cooling of the primary part can be carried out in an advantageous manner also stationary.
  • the second primary part is then movable relative to the cross. This has the advantage that its heat can be better dissipated when it is freely movable.
  • its thermal expansion does not disturb the cross.
  • the stationary primary part whose heat dissipation hardly heats the cross.
  • a relatively heated cross could result in an inaccurate seal jaw orientation due to its thermal expansion, which could result in leaky cross seams.
  • the secondary segments are each connected by means of a fastening to the cross (claim 1 1), it is achieved that it is at different expanding components as a result of heating of the magnet equipped secondary part not to warping or deforming the cross is coming. Since the secondary part becomes warmer than the beam bearing it, the secondary part has a greater thermal expansion than the beam if the materials of the secondary part and of the beam are the same or if the secondary part has a greater coefficient of linear expansion than the beam or the cross.
  • each secondary segment is connected via its own bottom part or a separate housing with the cross (claim 12). Then the material of the bottom part or of the housing and an intervening gap for the heated length expansions are relevant.
  • the bottom parts or the housing at room temperature tight or to form a gap to each other and has 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 cross, the cross is also distorted not with heating of the secondary part and heating by heat conduction to the cross.
  • significantly less is meant that the cross expands at a done by operation of the secondary part heating by a greater difference in length than the secondary part.
  • Is provided as the material of the bottom parts or the housing steel and as a material of the cross aluminum (claim 14) it is achieved on the one hand that the cross is relatively easy, and therefore is movable without much energy expenditure, and on the other hand that it expands with a larger coefficient of linear expansion than the secondary parts.
  • a Curvature of the cross does not occur in such a way. As a rule, no gap must be provided between the secondary parts.
  • the length expansion can not be fully considered when heated if according to claim 15, the bottom parts or the housing at room temperature in each case bear against each other to form a gap.
  • gaps with a width of about 10 micrometers are generally sufficient.
  • As attachment is z. B. a screw or a local bonding.
  • FIG. 1 is a side view of a cross, on the vertically aligned beam of which two rails are formed, between which a secondary part of a first linear motor extends, a stationary primary part sitting this linear motor on the rails in order to displace the cross in the vertical direction;
  • FIG. 2 is a sectional view of the cross of FIG. 1 cut along A-A of FIG. 1;
  • Figure 3 is a side view of the subject of Figure 1, but with something relative to the stationary primary part up set cross;
  • Figure 4 is a side view of the back of the cross of Figure 1, wherein on the horizontally oriented beam, a secondary part of a second linear motor is mounted to move a primary part along horizontally oriented rails, and additionally with a transverse sealing device of a vertical tubular bag machine whose sealing jaws are separated from each other by a horizontal movement of the primary part;
  • Figure 6 is a side view of a vertical bagging machine whose transverse sealing device by means of a drive according to the figures 1 to 5 moves in the vertical direction and also opened and closed;
  • Figure 7 is a side view of a cross with two perpendicularly acting linear motors according to Figure 1, but with secondary parts, consisting of a series of separate, each connected to the cross secondary part elements;
  • Figure 8 is a sectional view of the cut along B-B of Figure 7 object of Figure 7;
  • FIG. 9 shows a side view of the rear side of the object of FIG.
  • FIG. 7 with the transverse sealing device of FIG. 4;
  • FIG. 10 shows a sectional view of the secondary part for the actuation of the transverse sealing device of FIG. 9 at a low operating temperature of the secondary part
  • Figure 1 1 in a sectional view of the secondary part of Figure 10, but at a higher operating temperature
  • 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 6).
  • 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 11, 12 ( FIG. 4, FIG. 6).
  • 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 upwards, there 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 sealing device 10 has two linear motors 18, 19 (FIGS. 1 to 5).
  • 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.
  • the linear motors 18, 19 are connected to each other via a cross 23.
  • 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 each other.
  • 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.
  • four carriages 33 for moving the primary parts 24, 26 along the guides 30, 31 are provided in each case.
  • the secondary parts 25, 27 are glued to the cross 23 in order to stabilize it.
  • the cross 23 and the guides 30, 31 may be made of a single piece of aluminum for thermal expansion reasons, with a separate, hardened guide surface, each guide 30, 31 consisting of two mutually parallel rails 34, 35. Alternatively, rails 34, 35 of hardened steel may be used.
  • the cross 23 points to the opposite
  • the secondary parts 25, 27 extend over the beams 28, 29 and are in each case glued between two rails in a material recess 36.
  • the second linear motor 19 opens and closes the transverse sealing device 10 by a reciprocating movement of its primary part 26 relative to its secondary part 27 and thus to the cross
  • the secondary parts 25, 27 are hardly heated in contrast to the primary parts 24, 26, so that the cross 23 does not increase the accuracy of the movement of the sealing jaws 11, 12 undergoes longitudinal expansion as a result of excessive heating.
  • the two secondary parts 25, 27 of the cross 23 consist of a series of separate secondary part segments 40 arranged on one another.
  • the secondary part segments 40 are each connected to the cross 23 by means of a fastening 41.
  • As attachment 41 j eweils a screw is used.
  • Each secondary segment 40 is connected to the cross 23 via a bottom part of a housing 42.
  • the floor parts, and thus the housing 42, are at room temperature, d. H. in not yet operated linear motors 18, 19 close to each other ( Figure 10).
  • 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.
  • secondary segment 40 is to be understood as meaning a plurality of magnets 40 in one unit or in each case a single magnet 44.
  • a single-screw connection for a group that is bounded laterally, two screws side by side or one single narrow adhesive trace transverse to the longitudinal extent of the secondary part 25, 27 is advantageous. This allows a free expansion of the secondary part segment 40 without the cross 23 being curved thereby.

Landscapes

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

Abstract

L'invention concerne une ensacheuse verticale (1) comportant un premier moteur linéaire (18) destiné à déplacer un dispositif de scellage transversal (10) dans une première direction, de préférence dans la direction verticale (20), et un deuxième moteur linéaire (19) destiné à exercer un mouvement dans une deuxième direction, de préférence dans la direction horizontale (21), afin de déplacer une mâchoire de scellage (11) dans cette direction, ou afin d'amener deux mâchoires de scellage (11, 12) à décrire des mouvements opposés au moyen d'une transmission (22). Les moteurs linéaires (18, 19) sont connectés mutuellement au moyen d'une connexion en croix (23). Chaque moteur linéaire (18, 19) est composé d'une partie primaire (24, 26) et d'une partie secondaire (25, 27). La connexion en croix (23) constitue une connexion solide pour les moteurs linéaires (18, 19) agissant dans des directions de déplacement perpendiculaires.
EP07723678A 2006-05-12 2007-03-28 Ensacheuse verticale comportant deux moteurs linéaires Withdrawn EP2024235A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006022193A DE102006022193B4 (de) 2006-05-12 2006-05-12 Vertikale Schlauchbeutelmaschine mit zwei Linearmotoren
PCT/EP2007/002732 WO2007131572A1 (fr) 2006-05-12 2007-03-28 Ensacheuse verticale comportant deux moteurs linéaires

Publications (1)

Publication Number Publication Date
EP2024235A1 true EP2024235A1 (fr) 2009-02-18

Family

ID=38198116

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07723678A Withdrawn EP2024235A1 (fr) 2006-05-12 2007-03-28 Ensacheuse verticale comportant deux moteurs linéaires

Country Status (4)

Country Link
US (1) US7866131B2 (fr)
EP (1) EP2024235A1 (fr)
DE (1) DE102006022193B4 (fr)
WO (1) WO2007131572A1 (fr)

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DE102006022192B4 (de) * 2006-05-12 2009-08-27 Rovema - Verpackungsmaschinen Gmbh Vorrichtung zum Verschweißen einer Folienbahn
EP2181042A4 (fr) * 2007-08-23 2013-09-11 Tna Australia Pty Ltd Machine d'emballage pour sacs à fond plat
JP5253824B2 (ja) * 2008-01-11 2013-07-31 ヤマハ発動機株式会社 リニアモータ、部品実装装置及び部品検査装置
ITVR20110098A1 (it) * 2011-05-11 2012-11-12 P F M Spa Macchina confezionatrice verticale di prodotti alimentari
BR112014006101A2 (pt) * 2011-09-14 2017-04-04 Liqui-Box Corp conjunto para a produção de uma força oscilante e processo para a formação e preenchimento de uma bolsa em uma máquina vffs
DE102013217548A1 (de) * 2013-09-03 2015-03-05 Robert Bosch Gmbh Horizontalquersiegelstation
CN114136707A (zh) * 2021-11-30 2022-03-04 浙江嘉科电子有限公司 一种采样袋式水质自动采样器

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Also Published As

Publication number Publication date
WO2007131572A1 (fr) 2007-11-22
US20090260333A1 (en) 2009-10-22
DE102006022193B4 (de) 2009-08-27
DE102006022193A1 (de) 2007-11-15
US7866131B2 (en) 2011-01-11

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