WO1997026189A1 - Machine for filling and sealing plastic bags - Google Patents

Machine for filling and sealing plastic bags Download PDF

Info

Publication number
WO1997026189A1
WO1997026189A1 PCT/DE1996/002503 DE9602503W WO9726189A1 WO 1997026189 A1 WO1997026189 A1 WO 1997026189A1 DE 9602503 W DE9602503 W DE 9602503W WO 9726189 A1 WO9726189 A1 WO 9726189A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
jaws
pairs
clamping jaws
moved
Prior art date
Application number
PCT/DE1996/002503
Other languages
German (de)
French (fr)
Inventor
Willi Stirnkorb
Martin Beck
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO1997026189A1 publication Critical patent/WO1997026189A1/en

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Classifications

    • 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
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • 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
    • 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
    • B29C65/7451—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 the severing tool and the welding tool being movable with respect to one-another
    • 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
    • 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
    • B29C66/8227—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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic 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
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • 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
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • 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
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
    • 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
    • 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
    • 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
    • B65B9/213—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 the web having intermittent motion
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B29C53/50—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively using internal forming surfaces, e.g. mandrels
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • 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
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself

Definitions

  • the invention relates to a device for producing tubular bag packs according to the preamble of claim 1.
  • a device for example, from DE-OS 15 86 029.
  • the known device has two pairs of sealing jaws and two pairs of clamping jaws, each with separate drives, the pairs of sealing jaws being arranged above the pairs of clamping jaws.
  • the known device is constructed in a relatively complex manner due to the separate drives for the pairs of clamping jaws and the pairs of sealing jaws and requires a large amount of space.
  • From US 5,369,941 it is also known to arrange pairs of sealing jaws on common supports. However, jaw pairs are not provided.
  • DE 39 05 605 AI it is also known to use a tubular bag machine with a single tube forming device with a pair of sealing jaws and a pair of clamping jaws which can be moved independently thereof.
  • the object of the invention is to simplify the structure of a device for the manufacture of tubular bag packs of the generic type and at the same time to achieve the smallest possible space requirement. This object is achieved with the characterizing features of claim 1. Further advantages and advantageous developments of the device according to the invention for producing tubular bag packs result from the subclaims and the description.
  • FIG. 1 shows a duplex tubular bag machine in a greatly simplified manner in a front view
  • FIG. 2 shows the cross-seam sealing device of the duplex tubular bag machine according to FIG. 1 in a top view, parts being shown partially broken.
  • Two tube forming devices 11, 12 are arranged next to one another, each of which forms a heat-sealable packaging material strip 1, 2 around a shaped tube 13, 14 to form a tube 3, 4.
  • the overlapping edges of the packaging material strips 1, 2 are connected by longitudinal seam sealing devices 15, 16 to form longitudinal seams 5.
  • a transverse seam sealing device 20 with two sealing units 21, 22, which separate, cross-seal and separate the two hoses 3, 4, is arranged below the tube-forming devices 11, 12, tubular bag packs 6 being formed. In the tubular bag packs 6, a certain amount of filling material was previously filled through the respective shaped tube 13, 14 with the lower end closed.
  • the cross-seam sealing device 20 is moved up and down in order to advance the tubes 3, 4 in cycles.
  • the transverse seam sealing device 20 can, however, also be arranged in a stationary manner if the preference of the hoses 3, 4 is carried out by preferred means known per se.
  • Each sealing unit 21, 22 of the transverse seam sealing device 20 has a pair of sealing jaws, each with two sealing jaws 31, 32 and 131, 132 which can be moved relative to one another and which are located in an intermediate space between two pairs of clamping jaws 33, 34; 35, 36 and 133, 134; 135, 136 are arranged.
  • a separating knife 37, 137 can be inserted into the intermediate space when the sealing jaws 31, 32 and 131, 132 are withdrawn.
  • the sealing jaws 31, 32 and 131, 132 and the clamping jaws 133, 134; 135, 136 of the individual pairs are pulled apart so that the end of the tubes 3, 4 filled with a quantity of product can be passed between them.
  • the sealing jaws 31, 32 and 131, 132 of the individual pairs are closed, so that transverse seams 7 are formed on the tubes 3, 4 under the action of pressure and heat.
  • a separating knife 37 and 137 moves into the space between the clamping jaws 33, 35 and 133, 135, respectively, and cuts through the respective transverse seam 7 lengthways, whereby the just manufactured tubular bag pack 6 has a head seam, and a bottom seam is formed at the new hose end. Then the cutting knife 37, 137 and the jaws 33, 34; 35, 36 and 133, 134; 135, 136 pulled back into the starting position. As long as the pairs of jaws 33, 34; 35, 36 and 133, 134; 135, 136 clamp the hoses 3, 4, the transverse seam sealing device 20 is moved down by one bag length, the hoses 3, 4 being pulled forward. After the jaws have been opened, the transverse seam sealing device 20 returns to the upper position, and a new working cycle can begin.
  • the sealing jaws 31, 32 and 131, 132, the clamping jaws 33, 34; 35, 36 and 133, 134; 135, 136 and the separating knives 37 and 137 are arranged on a carrier 23 which has the shape of a rectangular frame made up of two parallel beams 24, 25 and crossbeams 26, 27, of which forks 28, 29 project inward in mirror image.
  • the carrier 23 is connected by means of an adapter 30 with a provided vertical lifting and guiding device for the carrier 23 connected.
  • the two similarly constructed sealing units 21, 22 are arranged in the carrier 23 in mirror image to a plane which lies centrally between the cross members 26, 27, the two sealing planes running parallel to one another and parallel to the mirror plane.
  • the two inner sealing jaws 32, 132 are fastened to two pairs of rods 41, 141 which are longitudinally displaceable in bearing eyes 42, 142 of the forks 28, 29 and in the crossbeams 26, 27.
  • the outer ends of the rods 41, 141 are each firmly connected to one another by means of a yoke 43, 143, against which the piston rods 44, 45 and 144, 145 are each connected to two hydraulic cylinders 46, 47 and 146 seated in the cross members 26, 27. Press 147.
  • the two outer sealing jaws 31, 131 have guide bores 48, 148 at their ends, with which they can be displaced on the rods 41.
  • the piston rod 49 presses one of the hydraulic cylinders 50, 150 seated in the crossbeams 26, 27 against the outer sealing jaws 31, 131 in the opposite sense as the hydraulic cylinders 46, 47 and 146, 147.
  • Moving apart into the rest position of the individual sealing jaws 31, 32 and 131, 132 of each sealing unit 21, 22 each effect two pairs of coil springs 51, 52 and 151, 152, the individual springs of which are firmly connected at one end to the cross members 26, 27 and act on tension.
  • the other end of the coil springs of the coil spring pairs 51, 151 is suspended at angles 53, 153 which are fastened to the yokes 43, 143.
  • the second ends of the springs of the coil spring pairs 52, 152 are suspended on holders 54, 154, which are firmly connected to the ends of the outer sealing jaws 31, 131.
  • the sealing jaws 31, 32 and 131, 132 of the two sealing units 21, 22 are each pressed against one another (FIG. 2).
  • the individual jaws 31, 32 and 131, 132 each delimiting top and bottom clamping jaws 33, 35; 34, 36 and 133, 135, 134, 136 are laterally firmly connected to one another and slidably mounted on two parallel guide rods 61, 62 anchored in the crossbeams 26, 27 parallel to the sealing jaws 31, 32 and 131, 132.
  • the clamping jaws 33, 35 and 134, 136 or 133, 135 and 34, 36 which are moved in the same direction, are driven together.
  • the ends of the respective outer clamping jaws 33, 35 and 133, 135 are firmly connected to the piston rod 63, 64 of two pneumatic cylinders 65, 66 and 165, 166, which are fastened in pairs in the cross members 26, 27 , and the outer clamping jaws 33, 35 and 133, 135 of each sealing unit 21, 22 directly actuate.
  • the ends of the inner clamping jaws 34, 36 and 134, 136 are connected to the ends of the outer clamping jaws 33 by means of connecting rods 67, 68 , 35 and 133, 135 firmly connected, so that the inner jaws 34, 36 and 134, 136 of one sealing unit 21 and 22 are actuated via the jaws 133, 135 and 33, 35 of the other sealing unit.
  • each pair of clamping jaws 33, 34; 35, 36; 133, 134; 135, 136 for example, coupled by means of a chain drive or by means of toothed racks so that when a clamping jaw coupled to a pneumatic cylinder is moved, the counter-jaw assigned to the pair of clamping jaws is inevitably moved in or out.

Abstract

The invention concerns a machine for filling and sealing plastic bags, the machine producing two sealed bags (6) per operating cycle. The machine has a cross-weld sealing device (20) with two sealing units (21, 22). Each sealing unit (21, 22) has a pair of sealing heads (31, 32 and 131, 132) as well as pairs of grippers (33, 34; 35, 36 and 133, 134; 135, 136) located immediately above and below the sealing heads. In order to produce a high-quality seal across the bags (6), each of the sealing heads has its own drive in the form of a hydraulic cylinder (44, 45, 50 and 144, 145, 150), whereas the gripper arms which are moved in the same direction (33, 35 and 134, 136 plus 133, 135 and 34, 36) in the two sealing units (21, 22) have common drives in the form of pneumatic cylinders (65, 66 and 165, 166).

Description

Vorrichtung zum Herstellen von SchlauchbeutelpackungenDevice for producing tubular bag packs
Die Erfindung geht aus von einer Vorrichtung zum Herstellen von Schlauchbeutelpackungen nach der Gattung des Anspruchs 1. Eine derartige Vorrichtung ist beispielsweise durch die DE-OS 15 86 029 bekannt geworden. Die bekannte Vorrichtung weist zwei Siegelbackenpaare und zwei Klemmbackenpaare mit jeweils separaten Antrieben auf, wobei die Siegelbackenpaare oberhalb der Klemmbackenpaare angeordnet sind. Die bekannte Vorrichtung ist durch die separaten Antriebe für die Klemm¬ backenpaare und die Siegelbackenpaare relativ aufwendig auf¬ gebaut und benötigt einen hohen Platzbedarf. Aus der US 5,369,941 ist es ferner bekannt, Siegelbackenpaare auf gemeinsamen Trägern anzuordnen. Klemmbackenpaare sind jedoch nicht vorgesehen. Durch die DE 39 05 605 AI ist es weiterhin bekannt, eine Schlauchbeutelmaschine mit einer einzigen Schlauchformeinrichtung mit einem Siegelbackenpaar und einem davon unabhängig bewegbaren Klemmbackenpaar einzusetzen.The invention relates to a device for producing tubular bag packs according to the preamble of claim 1. Such a device has become known, for example, from DE-OS 15 86 029. The known device has two pairs of sealing jaws and two pairs of clamping jaws, each with separate drives, the pairs of sealing jaws being arranged above the pairs of clamping jaws. The known device is constructed in a relatively complex manner due to the separate drives for the pairs of clamping jaws and the pairs of sealing jaws and requires a large amount of space. From US 5,369,941 it is also known to arrange pairs of sealing jaws on common supports. However, jaw pairs are not provided. From DE 39 05 605 AI it is also known to use a tubular bag machine with a single tube forming device with a pair of sealing jaws and a pair of clamping jaws which can be moved independently thereof.
Aufgabe der Erfindung ist es, eine Vorrichtung zum Her¬ stellen von Schlauchbeutelpackungen der gattungsgemäßen Art in ihrem Aufbau zu vereinfachen, und gleichzeitig einen möglichst geringen Platzbedarf zu erzielen. Diese Aufgabe wird mit den kennzeichnenden Merkmalen des Anspruchs 1 er¬ füllt. Weitere Vorteile und vorteilhafte Weiterbildungen der erfindungsgemäßen Vorrichtung zum Herstellen von Schlauch¬ beutelpackungen ergeben sich aus den Unteransprüchen und der Beschreibung.The object of the invention is to simplify the structure of a device for the manufacture of tubular bag packs of the generic type and at the same time to achieve the smallest possible space requirement. This object is achieved with the characterizing features of claim 1. Further advantages and advantageous developments of the device according to the invention for producing tubular bag packs result from the subclaims and the description.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird in der nachfolgenden Beschreibung näher beschrieben. Es zeigen Figur l eine Duplex-Schlauchbeutel- maschine stark vereinfacht in Vorderansicht und Figur 2 die Quernahtsiegeleinrichtung der Duplex-Schlauchbeutelmaschine nach Figur 1 in Draufsicht, wobei Teile teilweise gebrochen dargestellt sind.An embodiment of the invention is shown in the drawing and is described in more detail in the description below described. FIG. 1 shows a duplex tubular bag machine in a greatly simplified manner in a front view, and FIG. 2 shows the cross-seam sealing device of the duplex tubular bag machine according to FIG. 1 in a top view, parts being shown partially broken.
Beschreibung des AusführungsbeispielsDescription of the embodiment
Zwei Schlauchformeinrichtungen 11, 12 sind nebeneinander an- geordnet, die je ein heißsiegelfahiges Packstoffband 1, 2 um je ein Formrohr 13, 14 zu einem Schlauch 3, 4 formen. Die einander überdeckenden Ränder der Packstoffbänder 1, 2 wer¬ den von Längsnahtsiegeleinrichtungen 15, 16 zu Längsnähten 5 verbunden. Unterhalb der Schlauchformeinrichtungen 11, 12 ist eine Quernahtsiegeleinrichtung 20 mit zwei Siegelein¬ heiten 21, 22 angeordnet, welche die beiden Schläuche 3, 4 abteilen, quersiegeln und abtrennen, wobei Schlauchbeutel- Packungen 6 gebildet werden. In die Schlauchbeutelpackungen 6 wurde zuvor bei verschlossenem unterem Ende durch das je- weilige Formrohr 13, 14 je eine bestimmte Füllgutmenge ein¬ gefüllt. Zum taktweisen Vorziehen der Schläuche 3, 4 wird die Quernahtsiegeleinrichtung 20 auf- und abbewegt. Die Quernahtsiegeleinrichtung 20 kann aber auch stationär ange¬ ordnet werden, wenn der Vorzug der Schläuche 3, 4 von an sich bekannten Vorzugeinrichtungen durchgeführt wird.Two tube forming devices 11, 12 are arranged next to one another, each of which forms a heat-sealable packaging material strip 1, 2 around a shaped tube 13, 14 to form a tube 3, 4. The overlapping edges of the packaging material strips 1, 2 are connected by longitudinal seam sealing devices 15, 16 to form longitudinal seams 5. A transverse seam sealing device 20 with two sealing units 21, 22, which separate, cross-seal and separate the two hoses 3, 4, is arranged below the tube-forming devices 11, 12, tubular bag packs 6 being formed. In the tubular bag packs 6, a certain amount of filling material was previously filled through the respective shaped tube 13, 14 with the lower end closed. The cross-seam sealing device 20 is moved up and down in order to advance the tubes 3, 4 in cycles. The transverse seam sealing device 20 can, however, also be arranged in a stationary manner if the preference of the hoses 3, 4 is carried out by preferred means known per se.
Jede Siegeleinheit 21, 22 der Quernahtsiegeleinrichtung 20 hat ein Siegelbackenpaar mit je zwei gegeneinander beweg¬ baren Siegelbacken 31, 32 und 131, 132, die in einem Zwischenraum zwischen je zwei Klemmbackenpaaren 33, 34; 35, 36 und 133, 134; 135, 136 angeordnet sind. Ein Trennmesser 37, 137 ist bei zurückgezogenen Siegelbacken 31, 32 und 131, 132 in den Zwischenraum einführbar. In ihrer Ausgangsstellung sind die Siegelbacken 31, 32 und 131, 132 und die Klemmbacken 133, 134; 135, 136 der ein¬ zelnen Paare auseinandergezogen, so daß das mit einer Füll¬ gutmenge gefüllte Ende der Schläuche 3 , 4 dazwischen durch- geführt werden kann. Zum Herstellen der Quernähte 7 bzw. der Kopf- und Bodennähte werden zunächst die Klemmbacken 33, 34; 35, 36 und 133, 134; 135, 136 zusammengeführt und -gedrückt, so daß je eine Schlauchbeutelpackung 6 von den Schläuchen 3, 4 abgeteilt wird. Kurzzeitig danach werden auch die Siegel- backen 31, 32 und 131, 132 der einzelnen Paare geschlossen, so daß unter der Einwirkung von Druck und Wärme Quernähte 7 an den Schläuchen 3, 4 gebildet werden. Nach dem Zurück¬ fahren der Siegelbacken 31, 32 und 131, 132 fährt ein Trenn¬ messer 37 und 137 in den Zwischenraum zwischen den Klemm- backen 33, 35 bzw. 133, 135 und durchschneidet die jeweilige Quernaht 7 der Länge nach, wobei an der gerade gefertigten Schlauchbeutelpackung 6 eine Kopfnaht, und am neuen Schlauchende eine Bodennaht gebildet wird. Danach werden die Trennmesser 37, 137 und die Klemmbacken 33, 34 ; 35, 36 und 133, 134; 135, 136 wieder in die Ausgangsstellung zurückge¬ zogen. Solange die Klemmbackenpaare 33, 34; 35, 36 und 133, 134; 135, 136 die Schläuche 3, 4 festklemmen, wird die Quer¬ nahtsiegeleinrichtung 20 um eine Beutellänge nach unten be¬ wegt, wobei die Schläuche 3, 4 vorgezogen werden. Nach dem Öffnen der Klemmbacken kehrt die Quernahtsiegeleinrichtung 20 in die obere Lage zurück, und es kann ein neuer Arbeits¬ zyklus beginnen.Each sealing unit 21, 22 of the transverse seam sealing device 20 has a pair of sealing jaws, each with two sealing jaws 31, 32 and 131, 132 which can be moved relative to one another and which are located in an intermediate space between two pairs of clamping jaws 33, 34; 35, 36 and 133, 134; 135, 136 are arranged. A separating knife 37, 137 can be inserted into the intermediate space when the sealing jaws 31, 32 and 131, 132 are withdrawn. In their initial position, the sealing jaws 31, 32 and 131, 132 and the clamping jaws 133, 134; 135, 136 of the individual pairs are pulled apart so that the end of the tubes 3, 4 filled with a quantity of product can be passed between them. To produce the transverse seams 7 or the top and bottom seams, the clamping jaws 33, 34; 35, 36 and 133, 134; 135, 136 merged and pressed so that a tubular bag pack 6 is divided from the tubes 3, 4. Shortly thereafter, the sealing jaws 31, 32 and 131, 132 of the individual pairs are closed, so that transverse seams 7 are formed on the tubes 3, 4 under the action of pressure and heat. After the sealing jaws 31, 32 and 131, 132 have been moved back, a separating knife 37 and 137 moves into the space between the clamping jaws 33, 35 and 133, 135, respectively, and cuts through the respective transverse seam 7 lengthways, whereby the just manufactured tubular bag pack 6 has a head seam, and a bottom seam is formed at the new hose end. Then the cutting knife 37, 137 and the jaws 33, 34; 35, 36 and 133, 134; 135, 136 pulled back into the starting position. As long as the pairs of jaws 33, 34; 35, 36 and 133, 134; 135, 136 clamp the hoses 3, 4, the transverse seam sealing device 20 is moved down by one bag length, the hoses 3, 4 being pulled forward. After the jaws have been opened, the transverse seam sealing device 20 returns to the upper position, and a new working cycle can begin.
Die Siegelbacken 31, 32 und 131, 132, die Klemmbacken 33, 34; 35, 36 und 133, 134; 135, 136 sowie die Trennmesser 37 und 137 sind an einem Träger 23 angeordnet, der die Form eines Rechteckrahmens aus je zwei parallelen Balken 24, 25 und Traversen 26, 27 aufweist, von denen spiegelbildlich Gabeln 28, 29 nach innen vorstehen. Der Träger 23 ist mittels eines Adapters 30 mit einer nicht näher darge- stellten vertikalen Hub- und Führungseinrichtung für den Träger 23 verbunden.The sealing jaws 31, 32 and 131, 132, the clamping jaws 33, 34; 35, 36 and 133, 134; 135, 136 and the separating knives 37 and 137 are arranged on a carrier 23 which has the shape of a rectangular frame made up of two parallel beams 24, 25 and crossbeams 26, 27, of which forks 28, 29 project inward in mirror image. The carrier 23 is connected by means of an adapter 30 with a provided vertical lifting and guiding device for the carrier 23 connected.
Die beiden gleichartig aufgebauten Siegeleinheiten 21, 22 sind im Träger 23 spiegelbildlich zu einer Ebene angeordnet, die mittig zwischen den Traversen 26, 27 liegt, wobei die beiden Siegelebenen im Abstand zueinander und zur Spiegel- ebene parallel verlaufen. Die beiden inneren Siegelbacken 32, 132 sind an zwei Stangenpaaren 41, 141 befestigt, welche in Lageraugen 42, 142 der Gabeln 28, 29 und in den Traversen 26, 27 längs verschiebbar sind. Die äußeren Enden der Stangen 41, 141 sind je mittels eines Jochs 43, 143 mitein¬ ander fest verbunden, gegen das die Kolbenstangen 44, 45 und 144, 145 von je zwei in den Traversen 26, 27 sitzenden Hydrozylindern 46, 47 und 146, 147 drücken. Die beiden äußeren Siegelbacken 31, 131 haben an ihren Enden Führungs- bohrungen 48, 148, mit denen sie auf den Stangen 41 ver¬ schiebbar sind. Gegen die äußeren Siegelbacken 31, 131 drückt die Kolbenstange 49 je eines in den Traversen 26, 27 sitzenden Hydrozylinders 50, 150 im entgegengesetzten Sinne wie die Hydrozylinder 46, 47 und 146, 147. Das Auseinander¬ bewegen in die Ruhestellung der einzelnen Siegelbacken 31, 32 bzw. 131, 132 jeder Siegeleinheit 21, 22 bewirken je zwei Schraubenfederpaare 51, 52 und 151, 152, deren einzelne Federn mit ihrem einen Ende mit den Traversen 26, 27 fest verbunden sind und auf Zug wirken. Das andere Ende der Schraubenfedern der Schraubenfederpaare 51, 151 ist an Winkeln 53, 153 aufgehängt, die an den Jochen 43, 143 be¬ festigt sind. In ähnlicher Form sind die zweiten Enden der Federn der Schraubenfederpaare 52, 152 an Haltern 54, 154 aufgehängt, die fest mit den Enden der äußeren Siegelbacken 31, 131 verbunden sind. In der Arbeitsstellung sind bei be¬ aufschlagten Hydrozylindem 46, 47, 50 und 146, 147, 150 die Siegelbacken 31, 32 und 131, 132 der beiden Siegeleinheiten 21, 22 jeweils gegeneinander gedrückt (Figur 2) . Sie werden beim Entlasten der Hydrozylinder 46, 47, 50 und 146, 147, 150 von den Schraubenfederpaaren 52, 53 und 152, 153 in die Ruhestellung auseinandergezogen, so daß sie einen breiten Spalt zum Durchführen eines Schlauchendes freigeben.The two similarly constructed sealing units 21, 22 are arranged in the carrier 23 in mirror image to a plane which lies centrally between the cross members 26, 27, the two sealing planes running parallel to one another and parallel to the mirror plane. The two inner sealing jaws 32, 132 are fastened to two pairs of rods 41, 141 which are longitudinally displaceable in bearing eyes 42, 142 of the forks 28, 29 and in the crossbeams 26, 27. The outer ends of the rods 41, 141 are each firmly connected to one another by means of a yoke 43, 143, against which the piston rods 44, 45 and 144, 145 are each connected to two hydraulic cylinders 46, 47 and 146 seated in the cross members 26, 27. Press 147. The two outer sealing jaws 31, 131 have guide bores 48, 148 at their ends, with which they can be displaced on the rods 41. The piston rod 49 presses one of the hydraulic cylinders 50, 150 seated in the crossbeams 26, 27 against the outer sealing jaws 31, 131 in the opposite sense as the hydraulic cylinders 46, 47 and 146, 147. Moving apart into the rest position of the individual sealing jaws 31, 32 and 131, 132 of each sealing unit 21, 22 each effect two pairs of coil springs 51, 52 and 151, 152, the individual springs of which are firmly connected at one end to the cross members 26, 27 and act on tension. The other end of the coil springs of the coil spring pairs 51, 151 is suspended at angles 53, 153 which are fastened to the yokes 43, 143. Similarly, the second ends of the springs of the coil spring pairs 52, 152 are suspended on holders 54, 154, which are firmly connected to the ends of the outer sealing jaws 31, 131. In the working position, when the hydraulic cylinders 46, 47, 50 and 146, 147, 150 are acted upon, the sealing jaws 31, 32 and 131, 132 of the two sealing units 21, 22 are each pressed against one another (FIG. 2). you will be when the hydraulic cylinders 46, 47, 50 and 146, 147, 150 are relieved of the coil spring pairs 52, 53 and 152, 153 pulled apart into the rest position, so that they release a wide gap for the passage of a hose end.
Die jeweils einen einzelnen Siegelbacken 31, 32 und 131, 132 oben und unten begrenzenden Klemmbacken 33, 35; 34, 36 und 133, 135, 134, 136 sind seitlich miteinander fest verbunden und auf zwei parallelen, in den Traversen 26, 27 verankerten FührungsStangen 61, 62 parallel zu den Siegelbacken 31, 32 und 131, 132 verschiebbar gelagert. Im Gegensatz zu den Siegelbacken 31, 32 und 131, 132, von denen jeder seinen eigenen Antrieb hat, werden die jeweils in gleicher Richtung bewegten Klemmbacken 33, 35 und 134, 136 bzw. 133, 135 und 34, 36 gemeinsam angetrieben. Dazu sind die Enden der je¬ weils äußeren Klemmbacken 33, 35 bzw. 133, 135 mit der Kol¬ benstange 63, 64 von je zwei Pneumatikzylindern 65, 66 und 165, 166 fest verbunden, die paarweise in den Traversen 26, 27 befestigt sind, und jeweils die äußeren Klemmbacken 33, 35 bzw. 133, 135 jeder Siegeleinheit 21, 22 direkt betäti¬ gen. Die Enden der inneren Klemmbacken 34, 36 bzw. 134, 136 sind mittels Verbindungsstangen 67, 68 mit den Enden der äußeren Klemmbacken 33, 35 bzw. 133, 135 fest verbunden, so daß die inneren Klemmbacken 34, 36 bzw. 134, 136 der einen Siegeleinheit 21 bzw. 22 über die Klemmbacken 133, 135 bzw. 33, 35 der anderen Siegeleinheit betätigt werden.The individual jaws 31, 32 and 131, 132 each delimiting top and bottom clamping jaws 33, 35; 34, 36 and 133, 135, 134, 136 are laterally firmly connected to one another and slidably mounted on two parallel guide rods 61, 62 anchored in the crossbeams 26, 27 parallel to the sealing jaws 31, 32 and 131, 132. In contrast to the sealing jaws 31, 32 and 131, 132, each of which has its own drive, the clamping jaws 33, 35 and 134, 136 or 133, 135 and 34, 36, which are moved in the same direction, are driven together. For this purpose, the ends of the respective outer clamping jaws 33, 35 and 133, 135 are firmly connected to the piston rod 63, 64 of two pneumatic cylinders 65, 66 and 165, 166, which are fastened in pairs in the cross members 26, 27 , and the outer clamping jaws 33, 35 and 133, 135 of each sealing unit 21, 22 directly actuate. The ends of the inner clamping jaws 34, 36 and 134, 136 are connected to the ends of the outer clamping jaws 33 by means of connecting rods 67, 68 , 35 and 133, 135 firmly connected, so that the inner jaws 34, 36 and 134, 136 of one sealing unit 21 and 22 are actuated via the jaws 133, 135 and 33, 35 of the other sealing unit.
Ergänzend wird darauf hingewiesen, daß es in Abänderung des oben beschriebenen Ausführungsbeispiels selbstverständlich auch möglich ist, für die der Schlauchformeinrichtung 11 zu¬ geordneten Klemmbackenpaare 33, 34, 35, 36 sowie für die der Schlauchformeinrichtung 12 zugeordneten Klemmbackenpaare 133, 134, 135, 136 jeweils einen eigenen Antrieb vorzusehen. Das bedeutet, daß die jeweiligen Klemmbackenpaare 33 bis 36 bzw. 133 bis 136 nicht mittels der oben beschriebenen Ver- bindungsStangen 67, 68 zwangsgekoppelt sind. Vielmehr sind die jeweils gegenüber angeordneten Klemmbacken jedes Klemm¬ backenpaares 33, 34; 35, 36; 133, 134; 135, 136 beispiels¬ weise mittels eines Kettentriebes oder mittels Zahnstangen so gekoppelt, daß bei der Bewegung einer mit einem Pneu¬ matikzylinder gekoppelten Klemmbacke zwangsläufig die dem Klemmbackenpaar zugeordnete Gegenbacke zu- oder wegbewegt wird. Mit der beschriebenen Modifikation der Vorrichtung ist es möglich, die Bewegung der Klemmbackenpaare 33 bis 36 un- abhängig von der Bewegung der Klemmbackenpaare 133 bis 136 zu steuern. In addition, it is pointed out that, in a modification of the exemplary embodiment described above, it is of course also possible for the pairs of clamping jaws 33, 34, 35, 36 assigned to the tube shaping device 11 and for the pairs of jaws 133, 134, 135, 136 assigned to the tube shaping device 12 to provide its own drive. This means that the respective jaw pairs 33 to 36 or 133 to 136 are not binding rods 67, 68 are positively coupled. Rather, the clamping jaws of each pair of clamping jaws 33, 34; 35, 36; 133, 134; 135, 136, for example, coupled by means of a chain drive or by means of toothed racks so that when a clamping jaw coupled to a pneumatic cylinder is moved, the counter-jaw assigned to the pair of clamping jaws is inevitably moved in or out. With the modification of the device described, it is possible to control the movement of the pairs of jaws 33 to 36 independently of the movement of the pairs of jaws 133 to 136.

Claims

Ansprüche Expectations
1. Vorrichtung zum Formen, Füllen und Verschließen von Schlauchbeutelpackungen (6) , mit zwei parallel zueinander ausgerichteten Einrichtungen (11, 12) zum Formen je eines Schlauches (3, 4) aus je einer Packstoffbahn (1, 2) , und mit zwei, die am vorderen Ende mit je einer Füllgutmenge ge¬ füllten Schläuche (3, 4) in Schlauchbeutelpackungen (6) unterteilenden Quernahtsiegeleinrichtungen (21, 22) , die ge¬ geneinander bewegbare Klemmbackenpaare (33, 34; 35, 36 und 133, 134; 135, 136) und je ein bewegbares Siegelbackenpaar (31, 32 und 131, 132) aufweisen, dadurch gekennzeichnet, daß die Klemmbacken und Siegelbacken von Linearantrieben (46, 47, 50; 65, 66 und 146, 147, 150; 165, 166) betätigt werden, daß jedes Siegelbackenpaar (31, 32 und 131, 132) in je einem Zwischenraum zwischen den Klemmbackenpaaren (33, 34; 35, 36 und 133, 134; 135, 136) angeordnet ist, daß jede der Quer¬ nahtsiegeleinrichtungen (21, 22) je ein unabhängig von der anderen Siegeleinrichtung betätigbares Siegelbackenpaar (31, 32 und 131, 132) aufweist, daß die Siegelebenen der Quer¬ nahtsiegeleinrichtungen (21, 22) parallel im Abstand zuein¬ ander verlaufen, und daß die jeweils in gleicher Richtung bewegten Klemmbacken (33, 35 und 134, 136 sowie 133, 135 und 34, 36) beider Siegeleinrichtungen (21, 22) einen gemein¬ samen Antrieb (65, 66 und 165, 166) haben.1. Device for forming, filling and closing tubular bag packs (6), with two devices (11, 12) aligned parallel to one another for forming a tube (3, 4) each from a packaging material web (1, 2), and with two, the transverse seam sealing devices (21, 22), which at the front end are filled with tubes (3, 4) each in a tubular bag pack (6), the pairs of jaws (33, 34; 35, 36 and 133, 134; 135) that can be moved relative to one another , 136) and each have a movable pair of sealing jaws (31, 32 and 131, 132), characterized in that the clamping jaws and sealing jaws of linear drives (46, 47, 50; 65, 66 and 146, 147, 150; 165, 166) are actuated that each pair of sealing jaws (31, 32 and 131, 132) is arranged in a space between the pairs of clamping jaws (33, 34; 35, 36 and 133, 134; 135, 136), that each of the transverse seam sealing devices (21 , 22) one S which can be actuated independently of the other sealing device The pair of sealing jaws (31, 32 and 131, 132) has that the sealing planes of the transverse seam sealing devices (21, 22) run parallel at a distance from one another and that the clamping jaws (33, 35 and 134, 136 and 133, 135 and 34, 36) of both sealing devices (21, 22) have a common drive (65, 66 and 165, 166).
2. Vorrichtung nach Anspruch l, dadurch gekennzeichnet, daß die in jeweils gleicher Richtung bewegten Klemmbacken (33, 35; 134, 136 und 34, 36; 133, 135) der beiden Siegelein¬ richtungen (21, 22) mittels Stangen (68, 67 und 168, 167) miteinander verbunden sind, und daß alle Klemmbacken auf zwei parallelen FührungsStangen (61, 62) verschiebbar sind. 2. Device according to claim l, characterized in that the clamping jaws (33, 35; 134, 136 and 34, 36; 133, 135) of the two sealing devices (21, 22) moved in the same direction by means of rods (68, 67 and 168, 167) are connected to each other, and that all clamping jaws can be moved on two parallel guide rods (61, 62).
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekenn¬ zeichnet, daß die Antriebe für die Siegelbacken (31, 32 und 131, 132) und die Klemmbacken (33, 34; 35, 36 und 133, 134; 135, 136) Hydrozylinder (46, 47, 50; 146, 147, 150) bzw. Pneumatikzylinder (65, 66; 165, 166) sind.3. Device according to claim 1 or 2, characterized gekenn¬ characterized in that the drives for the sealing jaws (31, 32 and 131, 132) and the jaws (33, 34; 35, 36 and 133, 134; 135, 136) hydraulic cylinder (46, 47, 50; 146, 147, 150) or pneumatic cylinders (65, 66; 165, 166).
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die in jeweils gleicher Richtung bewegten Klemmbacken (33, 35; 134, 136 und 34, 36; 133, 135) der beiden Siegelein¬ richtungen (21, 22) mittels Stangen (68, 67 und 168, 167) miteinander verbunden sind und daß alle Klemmbacken auf zwei parallelen FührungsStangen (61, 62) verschiebbar sind.4. Apparatus according to claim 3, characterized in that the jaws (33, 35; 134, 136 and 34, 36; 133, 135) of the two sealing devices (21, 22) moved in the same direction by means of rods (68, 67 and 168, 167) are connected to each other and that all clamping jaws can be moved on two parallel guide rods (61, 62).
5. Vorrichtung nach Anspruch 1 oder 2, dadurch gekenn¬ zeichnet, daß die Klemmbackenpaare (33, 34; 35, 36) der einen Siegeleinriehtung (21) und die Klemmbackenpaare (133, 134; 135, 136) der anderen Siegeleinrichtung (22) jeweils einen eigenen Antrieb haben.5. Apparatus according to claim 1 or 2, characterized gekenn¬ characterized in that the jaw pairs (33, 34; 35, 36) of the one seal device (21) and the jaw pairs (133, 134; 135, 136) of the other sealing device (22) each have their own drive.
6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch ge¬ kennzeichnet, daß die Antriebe für die Siegelbacken (31, 32 und 131, 132) und die Klemmbacken (33, 34; 35, 36 und 133, 134; 135, 136) Hydrozylinder (46, 47, 50; 146, 147, 150) bzw. Pneumatikzylinder (65, 66; 165, 166) sind. 6. Device according to one of claims 1 to 5, characterized ge indicates that the drives for the sealing jaws (31, 32 and 131, 132) and the clamping jaws (33, 34; 35, 36 and 133, 134; 135, 136 ) Are hydraulic cylinders (46, 47, 50; 146, 147, 150) or pneumatic cylinders (65, 66; 165, 166).
PCT/DE1996/002503 1996-01-18 1996-12-21 Machine for filling and sealing plastic bags WO1997026189A1 (en)

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DE1996101598 DE19601598C2 (en) 1996-01-18 1996-01-18 Device for forming, filling and closing tubular bag packs
DE19601598.7 1996-01-18

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Publication number Priority date Publication date Assignee Title
ITMI20031934A1 (en) * 2003-10-08 2005-04-09 Saldoflex S R L WELDING GROUP HANDLING DEVICE, PARTICULARLY FOR MACHINES FOR THE MANUFACTURE OF PLASTIC BAGS
EP1561688A1 (en) * 2004-02-06 2005-08-10 Masek, Jan Machine for forming tetrahedral bags

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US2837883A (en) * 1956-09-06 1958-06-10 Package Machinery Co Automatic packaging machine
DE1168819B (en) * 1961-03-02 1964-04-23 Packaging Frontiers Inc Machine for the production of tetrahedral packs
DE1223137B (en) * 1961-10-11 1966-08-18 Hamac Hansella Ag Maschinenfab Device for producing the cross weld seams in packaging machines

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Publication number Priority date Publication date Assignee Title
FR1518042A (en) * 1967-02-10 1968-03-22 Liquid packaging machine
JPH07110647B2 (en) * 1988-06-28 1995-11-29 株式会社東京自働機械製作所 Bag-making, filling and packaging equipment
IT1248217B (en) * 1991-03-11 1995-01-05 Ica Spa VERTICAL PACKAGING MACHINE WITH TWO OPPOSED FORMING TUBES.

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Publication number Priority date Publication date Assignee Title
US2837883A (en) * 1956-09-06 1958-06-10 Package Machinery Co Automatic packaging machine
DE1168819B (en) * 1961-03-02 1964-04-23 Packaging Frontiers Inc Machine for the production of tetrahedral packs
DE1223137B (en) * 1961-10-11 1966-08-18 Hamac Hansella Ag Maschinenfab Device for producing the cross weld seams in packaging machines

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DE19601598C2 (en) 1998-01-15
ZA97374B (en) 1997-07-18

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