EP4658568A1 - Vertical form fill sealing machine - Google Patents

Vertical form fill sealing machine

Info

Publication number
EP4658568A1
EP4658568A1 EP24713378.8A EP24713378A EP4658568A1 EP 4658568 A1 EP4658568 A1 EP 4658568A1 EP 24713378 A EP24713378 A EP 24713378A EP 4658568 A1 EP4658568 A1 EP 4658568A1
Authority
EP
European Patent Office
Prior art keywords
form fill
transverse welding
welding jaws
foil
horizontal movement
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.)
Pending
Application number
EP24713378.8A
Other languages
German (de)
French (fr)
Inventor
Frantisek Smid
Bohumil JEZEK
Miloslav Zajic
Roman Jirousek
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.)
Velteko SRO
Original Assignee
Velteko SRO
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 Velteko SRO filed Critical Velteko SRO
Publication of EP4658568A1 publication Critical patent/EP4658568A1/en
Pending 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
    • B65B51/306—Counter-rotating devices
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—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
    • B29C66/01—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
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • 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
    • B29C66/40—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83541—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement
    • B29C66/83543—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement cooperating flying jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—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
    • B29C66/849—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
    • 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
    • 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/04—Machines constructed with readily-detachable units or assemblies, e.g. to facilitate maintenance
    • 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
    • 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
    • B65B9/2056—Machines for packages of special type or form
    • 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
    • B65B9/207—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 advancing continuously
    • 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
    • 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
    • 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
    • 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
    • B29C66/8167—Quick change joining tools or surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets
    • 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
    • B65B2210/00—Specific aspects of the packaging machine
    • B65B2210/06—Sterilising or cleaning machinery or conduits

Definitions

  • the present invention relates to a new construction design and spatial arrangement of some selected functional assemblies applied on vertical form fill sealing machines, in particular the continuous ones, being used for shaping, filling, and sealing of various types of form fill bags.
  • a solution according to the present invention significantly simplifies cleaning and disinfecting of the machine.
  • the continuous vertical form fill sealing machines have been used for shaping, filling, and sealing of form fill bags.
  • a packaging foil passes continuously through the machine - in the area of its shaping into form fill foil, filling, and sealing thereof in vertical direction.
  • Driving elements such as belts or gears, provide movement of the foil.
  • Some machine elements need to be adapted to continuous movement of the packaging foil that act on it.
  • these are transverse welding jaws and shaping tools used to fold bottom of the bags.
  • documents CZ 18574 U1 discloses a continuous vertical form fill sealing machine of a corresponding structure.
  • Other embodiments of the continuous vertical form fill sealing machines are disclosed in documents US 5832701 A and CZ 31260 Ul.
  • the dri ves of these movements are stored in one common mechanical cabinet.
  • the mo vements of most of the elements acting on the foil are transmitted from the common mechanical cabinet by a rotating shaft or sliding bars, which is perfect as far as hygiene is concerned.
  • transmission of the vertical movement of the transverse welding jaws from the common mechanical cabinet poses a big problem with respect to hygiene.
  • three to five grooves into the space where the transverse welds are sealed have to be made through a front plate of the common mechanical cabinet, and bars with transverse welding jaws mounted thereon are going through the grooves.
  • the groove length and width is approximately hundreds of mm and tens of mm, respectively.
  • the ways of covering the grooves in a hygienic manner remain unknown.
  • the inner space of the common mechanical cabinet is contaminated by dust and/or packed loose material. Due to varied surface and sensitivity of devices installed inside the common mechanical cabinet sufficient cleaning is rather troublesome.
  • the mechanisms of the vertical form filling sealing machines are highly varied including those being located in areas where contamination with a product being packed is possible. Their cleaning for hygienic reasons or to remove allergens is highly laborious.
  • the object of the present invention is a design of a vertical form fill sealing machine for shaping, filling, and sealing of form fill bags.
  • the machine includes a device for unwinding of a flat packing foil usually from a roll.
  • the machine includes a filling tube being arranged (in the direction of the unwound foil) downstream the flat packing foil unwinding device.
  • the filling tube has a shaping collar for forming of the unwound flat packing foil into l ongitudinally unsealed form fill foil.
  • there is a longitudinal closing jaw for longitudinal sealing of the form fill foil under the shaping collar on the filling tube. Sealing refers to welding of overlapping material after establishing the longitudinally unsealed form fill foil.
  • the (sealed) form fill foil is created, which may be further divided by transverse welds and filled with a product.
  • one or more than one longitudinal edge jaws may be used to fix the longitudinal reinforcing edges.
  • the longitudinal jaws (closing type and edge type) may be either fixed or vertically movable. All the longitudinal jaws produce welds being parallel with the l ongitudinal axis of the filling tube or the foil form fill.
  • the machine includes a form fill foil feed device on the filling tube from the shaping collar to the longitudinal closing and the edge jaws and to the transverse welding jaws arranged under the filling tube.
  • the transverse welding jaws are arranged to provide the trans verse welds that seal and separate individual form fill bags from the form fill foil.
  • the transverse welding jaws are connected by output bars to the horizontal movement mechanism for the movement of the transverse welding jaws. Included in the horizontal movement mechanism of the transverse welding jaws is at least one guide for the vertical movement of the transverse welding jaws. Jointly with the horizontal movement mechanism for the transverse welding jaws, the transverse welding jaws are vertically movable by the guide along at least one guiding bar. The guiding bar(s) is (are) firmly attached to a frame.
  • the horizontal movement mechanism for the transverse welding jaws is arranged in a vertically movable mechanical cabinet.
  • the vertically movable mechanical cabinet is firmly connected to the horizontal movement mechanism for the transverse welding jaws. In this case it means that they are not vertically movable each other.
  • the machine includes an upper mechanical cabinet.
  • the upper mechanical cabinet includes at least a form fill foil drive feed device and connects firmly to the frame.
  • the vertically movable mechanical cabinet is vertically movable with respect to the upper mechanical cabinet in the same way as the transverse welding jaws are vertically movable with respect to the filling tube.
  • transverse welding jaws may be tools for folding of bottom of the bags known from the prior art.
  • the drive of the tools is also arranged in the vertically movable mechanical cabinet.
  • the present invention replaces one common mechanical cabinet with two mechanical cabinets. It is the upper mechanical cabinet being firmly connected to the machine frame, and the lower mechanical cabinet being vertically movable with respect to the upper mechanical cabinet as well as to the machine frame. These cabinets include most of the machine mechanisms and have simple and smooth outer shapes for easy cleaning.
  • the upper mechanical cabinet includes all elements and drives as the original mechanical cabinet according to the prior art with the exception of the horizontal movement mechanism for the transverse welding jaws, and, if any, shaping tools drive for folding of the bottoms of the bags. Included elements are the form fill foil drive feed device as well as, in particular, various mechanical, pneumatic, and electric elements for control and operation of the machine. In particular, it may include the vertical movement drive of the horizontal movement mechanism of the transverse welding jaws, vacuum pump, pneumatic valves, vertical and/or horizontal movement drive for the longitudinal jaws, and more.
  • the lower vertically movable mechanical cabinet includes the horizontal movement mechanism for the transverse welding jaws, and, if any, the shaping tools drive for folding of the bottoms of the bags. Conceivable may be an embodiment in which the vertical movement drive of the horizontal movement mechanism of the transverse welding jaws is arranged in the lower mechanical cabinet.
  • Fig. 1 illustrates a general axonometric view to the vertical form fill sealing machine according to the present invention
  • Fig. 2 illustrates a cross section of the filling tube in area of the l ongitudinal edge/closing jaws.
  • a vertical form fill sealing machine for shaping, filling, and sealing of form fill bags 11 includes a device 3 for unwinding of a flat packing foil 12 from a roll 13.
  • the machine includes a filling tube 8.
  • the filling tube 8 has a shaping col lar 4 for forming of the unwound flat packing foil 12 into shape of a form fill foil 7.
  • the longitudinal closing jaw 9 is firm (i.e., not vertically movable).
  • the machine includes a form fill foil 7 feed device 5 on the filling tube 8 from the shaping collar 4 to the longitudinal closing jaw 9 and to the transverse welding jaws 6 arranged under the filling tube 8 (i.e., in the direction of arrow 10).
  • the filling tube 8 may have various shapes of the cross section, e.g., round (refer to Fig. 1) or square (refer to Fig. 2).
  • the filling tube 8 may be provided on its three comers with three longitudinal edge jaws 22 to create longitudinal reinforcing edges 23 of the form fill bag 11 .
  • the fourth corner of the filling tube 8 has a longitudinal closing jaw 9 arranged thereon.
  • the longitudinal weld on the form fill foil acts as a longitudinal reinforcing edge 23.
  • the transverse welding jaws 6 are connected by output bars 17 to the horizontal movement mechanism 18 for the movement of the transverse welding jaws 6. Included in the horizontal movement mechanism 18 of the transverse welding jaws 6 are two guides 20 of the vertical movement of the transverse welding jaws 6 and the horizontal movement mechanism 18 of the transverse welding jaws 6 along guiding bars 21 firmly connected to a frame 2.
  • the horizontal movement mechanism 18 for the transverse welding jaws 6 is arranged in a vertically movable mechanical cabinet 19. The latter is firmly attached to the horizontal movement mechanism 18 for the transverse welding jaws 6.
  • Included in the transverse welding jaws 6 are tools 14 for folding of bottoms of the form fill bags 11 .
  • a drive for the tools 14 is arranged in the vertically movable mechanical cabinet 19.
  • the device includes an upper mechanical cabinet 1 that contains, among others, the form fill foil 7 feed device 5, electric wiring of the machine, the vertical movement drive for vertically movable mechanical cabinet 19 and the horizontal movement mechanism 18 for the transverse welding jaws 6, a vacuum pump, and pneumatic valves.
  • the upper mechanical cabinet 1 is firmly connected to the frame 2.

Landscapes

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

Abstract

A vertical form fill sealing machine includes a filling tube (8) with a shaping collar (4) for forming of a flat packing foil (12) into shape of a form fill foil (7) with longitudinal closing jaw (9) and, if any, longitudinal edge jaws (22). Furthermore, the machine includes a form fill foil (7) feed device (5) along the filling tube (8). Transverse welding jaws (6) are connected by output bars (17) to a horizontal movement mechanism (18) for the movement of the transverse welding jaws (6). A gui de (20) guides the vertical movement of the transverse welding jaws (6) with the mechanism (18) along guiding bars (21). The horizontal movement mechanism (18) for the transverse welding jaws (6) is arranged in a vertically movable mechanical cabinet (19), firmly connected with said mechanism (18). An upper mechanical cabinet (1) is firmly connected to a frame (2) and includes at least a form fill foil (7) feed device (5).

Description

Vertical form fill sealing machine
Field of the invention
The present invention relates to a new construction design and spatial arrangement of some selected functional assemblies applied on vertical form fill sealing machines, in particular the continuous ones, being used for shaping, filling, and sealing of various types of form fill bags. A solution according to the present invention significantly simplifies cleaning and disinfecting of the machine.
Background of the inventi on
The continuous vertical form fill sealing machines have been used for shaping, filling, and sealing of form fill bags. A packaging foil passes continuously through the machine - in the area of its shaping into form fill foil, filling, and sealing thereof in vertical direction. Driving elements, such as belts or gears, provide movement of the foil. Some machine elements need to be adapted to continuous movement of the packaging foil that act on it. In particular, these are transverse welding jaws and shaping tools used to fold bottom of the bags. In the area of making of the transverse welds and folding of the bottoms of the bags, they make concurrently reciprocal vertical movement along continuously moving form fill foil and horizontal movement from side to side at the same time. Document CZ 18574 U1 discloses a continuous vertical form fill sealing machine of a corresponding structure. Other embodiments of the continuous vertical form fill sealing machines are disclosed in documents US 5832701 A and CZ 31260 Ul.
For standard continuous vertical form fill sealing machines, the dri ves of these movements are stored in one common mechanical cabinet. The mo vements of most of the elements acting on the foil are transmitted from the common mechanical cabinet by a rotating shaft or sliding bars, which is perfect as far as hygiene is concerned. However, transmission of the vertical movement of the transverse welding jaws from the common mechanical cabinet poses a big problem with respect to hygiene. Usually, three to five grooves into the space where the transverse welds are sealed have to be made through a front plate of the common mechanical cabinet, and bars with transverse welding jaws mounted thereon are going through the grooves. The groove length and width is approximately hundreds of mm and tens of mm, respectively. The ways of covering the grooves in a hygienic manner remain unknown. As a consequence of this, the inner space of the common mechanical cabinet is contaminated by dust and/or packed loose material. Due to varied surface and sensitivity of devices installed inside the common mechanical cabinet sufficient cleaning is rather troublesome.
Generally, the mechanisms of the vertical form filling sealing machines are highly varied including those being located in areas where contamination with a product being packed is possible. Their cleaning for hygienic reasons or to remove allergens is highly laborious.
The disadvantages are removed by the embodiment according to the invention.
Summary of the invention
The object of the present invention is a design of a vertical form fill sealing machine for shaping, filling, and sealing of form fill bags. The machine includes a device for unwinding of a flat packing foil usually from a roll. In addition, the machine includes a filling tube being arranged (in the direction of the unwound foil) downstream the flat packing foil unwinding device. The filling tube has a shaping collar for forming of the unwound flat packing foil into l ongitudinally unsealed form fill foil. In addition, there is a longitudinal closing jaw for longitudinal sealing of the form fill foil under the shaping collar on the filling tube. Sealing refers to welding of overlapping material after establishing the longitudinally unsealed form fill foil. Hence, the (sealed) form fill foil is created, which may be further divided by transverse welds and filled with a product. Furthermore, one or more than one longitudinal edge jaws may be used to fix the longitudinal reinforcing edges. The longitudinal jaws (closing type and edge type) may be either fixed or vertically movable. All the longitudinal jaws produce welds being parallel with the l ongitudinal axis of the filling tube or the foil form fill.
In addition, the machine includes a form fill foil feed device on the filling tube from the shaping collar to the longitudinal closing and the edge jaws and to the transverse welding jaws arranged under the filling tube. The transverse welding jaws are arranged to provide the trans verse welds that seal and separate individual form fill bags from the form fill foil.
The transverse welding jaws are connected by output bars to the horizontal movement mechanism for the movement of the transverse welding jaws. Included in the horizontal movement mechanism of the transverse welding jaws is at least one guide for the vertical movement of the transverse welding jaws. Jointly with the horizontal movement mechanism for the transverse welding jaws, the transverse welding jaws are vertically movable by the guide along at least one guiding bar. The guiding bar(s) is (are) firmly attached to a frame. The horizontal movement mechanism for the transverse welding jaws is arranged in a vertically movable mechanical cabinet. The vertically movable mechanical cabinet is firmly connected to the horizontal movement mechanism for the transverse welding jaws. In this case it means that they are not vertically movable each other.
In addition, the machine includes an upper mechanical cabinet. The upper mechanical cabinet includes at least a form fill foil drive feed device and connects firmly to the frame. The vertically movable mechanical cabinet is vertically movable with respect to the upper mechanical cabinet in the same way as the transverse welding jaws are vertically movable with respect to the filling tube.
Included in the transverse welding jaws may be tools for folding of bottom of the bags known from the prior art. In that case, the drive of the tools is also arranged in the vertically movable mechanical cabinet.
Accordingly, the present invention replaces one common mechanical cabinet with two mechanical cabinets. It is the upper mechanical cabinet being firmly connected to the machine frame, and the lower mechanical cabinet being vertically movable with respect to the upper mechanical cabinet as well as to the machine frame. These cabinets include most of the machine mechanisms and have simple and smooth outer shapes for easy cleaning.
The upper mechanical cabinet includes all elements and drives as the original mechanical cabinet according to the prior art with the exception of the horizontal movement mechanism for the transverse welding jaws, and, if any, shaping tools drive for folding of the bottoms of the bags. Included elements are the form fill foil drive feed device as well as, in particular, various mechanical, pneumatic, and electric elements for control and operation of the machine. In particular, it may include the vertical movement drive of the horizontal movement mechanism of the transverse welding jaws, vacuum pump, pneumatic valves, vertical and/or horizontal movement drive for the longitudinal jaws, and more. The lower vertically movable mechanical cabinet includes the horizontal movement mechanism for the transverse welding jaws, and, if any, the shaping tools drive for folding of the bottoms of the bags. Conceivable may be an embodiment in which the vertical movement drive of the horizontal movement mechanism of the transverse welding jaws is arranged in the lower mechanical cabinet. Explanation of drawings
The exemplary embodiment according to the present invention is described with reference to the drawings, in which
Fig. 1 illustrates a general axonometric view to the vertical form fill sealing machine according to the present invention;
Fig. 2 illustrates a cross section of the filling tube in area of the l ongitudinal edge/closing jaws.
Exemplary embodiment of the invention
A vertical form fill sealing machine for shaping, filling, and sealing of form fill bags 11 includes a device 3 for unwinding of a flat packing foil 12 from a roll 13. In addition, the machine includes a filling tube 8. The filling tube 8 has a shaping col lar 4 for forming of the unwound flat packing foil 12 into shape of a form fill foil 7. In addition, there is a longitudinal closing jaw 9 for longitudinal sealing of the form fill foil 7 on the filling tube 8. In this case, the longitudinal closing jaw 9 is firm (i.e., not vertically movable).
In addition, the machine includes a form fill foil 7 feed device 5 on the filling tube 8 from the shaping collar 4 to the longitudinal closing jaw 9 and to the transverse welding jaws 6 arranged under the filling tube 8 (i.e., in the direction of arrow 10).
Generally, the filling tube 8 may have various shapes of the cross section, e.g., round (refer to Fig. 1) or square (refer to Fig. 2). In case of the square cross section, the filling tube 8 may be provided on its three comers with three longitudinal edge jaws 22 to create longitudinal reinforcing edges 23 of the form fill bag 11 . The fourth corner of the filling tube 8 has a longitudinal closing jaw 9 arranged thereon. The longitudinal weld on the form fill foil acts as a longitudinal reinforcing edge 23. An advantage of the arrangement of the form fill bag 11 is the smooth sides that may be used for promotional printing.
The transverse welding jaws 6 are connected by output bars 17 to the horizontal movement mechanism 18 for the movement of the transverse welding jaws 6. Included in the horizontal movement mechanism 18 of the transverse welding jaws 6 are two guides 20 of the vertical movement of the transverse welding jaws 6 and the horizontal movement mechanism 18 of the transverse welding jaws 6 along guiding bars 21 firmly connected to a frame 2. The horizontal movement mechanism 18 for the transverse welding jaws 6 is arranged in a vertically movable mechanical cabinet 19. The latter is firmly attached to the horizontal movement mechanism 18 for the transverse welding jaws 6. Included in the transverse welding jaws 6 are tools 14 for folding of bottoms of the form fill bags 11 . A drive for the tools 14 is arranged in the vertically movable mechanical cabinet 19.
Furthermore, the device includes an upper mechanical cabinet 1 that contains, among others, the form fill foil 7 feed device 5, electric wiring of the machine, the vertical movement drive for vertically movable mechanical cabinet 19 and the horizontal movement mechanism 18 for the transverse welding jaws 6, a vacuum pump, and pneumatic valves. The upper mechanical cabinet 1 is firmly connected to the frame 2.
List of reference numerals
1 --- upper mechanical cabinet
2 - frame
3 - device for unwinding of flat packing foil
4 - shaping collar
5 - form fill foil feed device
6 - trans verse welding jaws
7 - form fill foil
8 - filling tube
9 --- longitudinal closing jaw
10 - direction arrow
11 - form fill bag
12 - packing foil
13 - roll
14 - tools for folding of bottom of form fill bags
17 - output bars
18 - horizontal movement mechanism of transverse welding jaws
19 - vertically movable mechanical cabinet
20 --- guide of vertical movement of transverse welding jaw's
21 - guiding bar
22 - longitudinal edge jaw
23 - longitudinal reinforcing edge

Claims

1. A vertical form fill sealing machine for shaping, filling, and sealing of form fill bags (11) including a device (3) for unwinding of flat packing foil (12) and a filling tube (8), on which a shaping collar (4) for forming of unwound flat packing foil (12) into the shape of a form fill foil (7) and at least one longitudinal closing jaw (9) for longitudinal closing of the form fill foi l (7) are arranged, and further including a form fill foil (7) feed device (5) on the filling tube (8) from the shaping collar (4) towards the longitudinal closing jaw (9) and to transverse welding jaws (6) arranged under the filling tube (8), wherein the transverse welding jaws (6) are connected by output bars (17) to the horizontal movement mechanism (18) for the movement of the transverse welding jaws (6), wherein included in the horizontal movement mechanism (18) of the transverse welding jaws (6) is at least one guide (20) for vertical movement of the transverse welding jaws (6) with the horizontal movement mechanism (18) of the transverse welding jaws (6) along at least one guiding bar (21) firmly connected to a frame (2), and further containing an upper mechanical cabinet (1) including at least one form film foil (7) feed device (5) and firmly connected to the frame (2), characterized in that the horizontal movement mechanism (18) for the transverse welding jaws (6) is arranged in a vertically movable mechanical cabinet (19), firmly connected with said mechanism (18), wherein the vertical movement drive of the transverse welding jaws (6) and of the horizontal movement mechanism (18) of the transverse welding jaws (6) with the vertically movable mechanical cabinet (19) is arranged in the upper mechanical cabinet (1).
2. The vertical form fill sealing machine according to claim 1 characterized by that included in the transverse welding jaws (6) are tools (14) for folding of the bottom of the form fill bags (11) and their drive is arranged in the vertically movable mechanical cabinet (19).
3. The vertical form fill sealing machine according to claim 1 or 2 characterized by that further arranged on the filling tube (8) is at least one longitudinal edge jaw (22) for providing at least one longitudinal reinforcing edge (23) on the form fill foil (7).
EP24713378.8A 2023-01-31 2024-01-31 Vertical form fill sealing machine Pending EP4658568A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ2023-40A CZ202340A3 (en) 2023-01-31 2023-01-31 Vertical hose wrapping machine
PCT/CZ2024/050004 WO2024160307A1 (en) 2023-01-31 2024-01-31 Vertical form fill sealing machine

Publications (1)

Publication Number Publication Date
EP4658568A1 true EP4658568A1 (en) 2025-12-10

Family

ID=90417519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24713378.8A Pending EP4658568A1 (en) 2023-01-31 2024-01-31 Vertical form fill sealing machine

Country Status (3)

Country Link
EP (1) EP4658568A1 (en)
CZ (1) CZ202340A3 (en)
WO (1) WO2024160307A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5339700A (en) * 1991-12-16 1994-08-23 Isco, Inc. Sample collector
EP1720226B1 (en) * 2005-04-19 2008-03-12 Teepack Spezialmaschinen Gmbh & Co. Kg Packaging machine
ITUA20162990A1 (en) * 2016-04-28 2017-10-28 Martini S R L VERTICAL PACKAGING MACHINE

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WO2024160307A1 (en) 2024-08-08
CZ202340A3 (en) 2024-08-07

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