WO2017062411A2 - Système de formation de paquets à partir de matériau en film - Google Patents

Système de formation de paquets à partir de matériau en film Download PDF

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Publication number
WO2017062411A2
WO2017062411A2 PCT/US2016/055428 US2016055428W WO2017062411A2 WO 2017062411 A2 WO2017062411 A2 WO 2017062411A2 US 2016055428 W US2016055428 W US 2016055428W WO 2017062411 A2 WO2017062411 A2 WO 2017062411A2
Authority
WO
WIPO (PCT)
Prior art keywords
lid
base
stock
film
forming drum
Prior art date
Application number
PCT/US2016/055428
Other languages
English (en)
Other versions
WO2017062411A3 (fr
Inventor
Alex Waterman
Anthony CRIVOLIO
Donn D. HARTMAN
Original Assignee
Cloud Packaging Solutions, LLC
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
Priority claimed from US15/004,409 external-priority patent/US20170101204A1/en
Application filed by Cloud Packaging Solutions, LLC filed Critical Cloud Packaging Solutions, LLC
Publication of WO2017062411A2 publication Critical patent/WO2017062411A2/fr
Publication of WO2017062411A3 publication Critical patent/WO2017062411A3/fr

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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
    • 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
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • B65B9/042—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material for fluent 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/18—Thermoforming apparatus
    • B29C51/20—Thermoforming apparatus having movable moulds or mould parts
    • B29C51/22—Thermoforming apparatus having movable moulds or mould parts rotatable about an axis
    • B29C51/225—Thermoforming apparatus having movable moulds or mould parts rotatable about an axis mounted on a vacuum drum
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/006—Using vacuum
    • 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
    • B29C2793/0027—Cutting off
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—Moulds
    • B29C51/32—Moulds having cutting means
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/42—Heating or cooling
    • B29C51/428—Heating or cooling of moulds or mould parts
    • 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
    • B65B2220/00—Specific aspects of the packaging operation
    • B65B2220/24—Cooling filled packages
    • 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
    • B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
    • B65B63/08—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for heating or cooling articles or materials to facilitate packaging

Definitions

  • This disclosure relates generally to a package forming system and, more particularly, to a system utilizing a rotary drum to thermoform pouches from a continuous web and a method of forming and filling the pouches.
  • Machines or systems are known for forming pouches or packages from two continuous webs in which a first or base stock film is thermoformed to define a pocket that may be filled to some extent with one or more products or materials and subsequently closed by a second or lid stock film.
  • the base stock film is fed from a supply roll and heated to a temperature sufficient to allow thermoforming.
  • the heated film is continuously wrapped or routed around a base forming drum or roller having a plurality of cavities along an outer surface thereof and a vacuum is applied within each cavity to pull a portion of the heated film into each cavity to form a plurality of base stock pockets as the film is fed and the drum rotated.
  • each of the base stock pockets may be filled with one or more desired products or materials while the pocket is still positioned within its cavity on the drum.
  • the lid stock film is fed from a supply roll towards the base forming drum and into contact with the base stock film to seal each base stock pocket after the pocket has been filled to a desired level.
  • any combination of heat, pressure, and/or a solvent may be applied to either or both of the base stock film and the lid stock film before or as the two films are brought together to continuously seal each pocket and form each sealed pouch or package.
  • the combined base stock and lid stock films are subsequently cut to separate the individual pouches.
  • An example of a machine and a process for forming the pouches is described further in U.S. Patent No. 3,218,776, which is incorporated herein by reference.
  • the systems used to form the pouches may utilize three or more continuous webs.
  • the base stock film is drawn from a supply roll and wrapped around or engaged with a heated roller and then around a base forming drum and drawn into cavities to form the pockets as described above.
  • the base stock film and base forming drum continue to be rotated, one or more desired first products or materials may be dispensed into the pockets formed within the cavities of the base forming drum.
  • lid base stock film is drawn from a supply roll and wrapped around or engaged with a heated roller where the film is heated to a temperature sufficient to allow thermoforming.
  • the heated lid base stock film is wrapped or routed around a lid forming drum or roller having a plurality of cavities along an outer surface thereof and a vacuum is applied within each cavity to pull a portion of the heated film into each cavity to define one or more recesses as the film is fed and the drum rotated.
  • a lid base stock film and lid forming drum continue to be rotated, one or more desired second products or materials may be dispensed into the recesses formed within the cavities of the lid forming drum.
  • lid closing stock film is fed from a supply roll towards the lid base stock film to seal each recess of the lid base stock after each recess has been filled to a desired level.
  • any combination of heat, pressure, and/or a solvent may be applied to either or both of the lid base stock film and the lid closing stock film before or as the two films are brought together to continuously seal each pocket and form a sealed lid sub-package or structure having products or materials sealed between the layers of film that form the lid sub-package.
  • the sealed lid sub-package is then routed towards the base stock forming drum and the base stock film.
  • any combination of heat, pressure, and/or a solvent may be applied to either or both of the base stock film and the sealed lid sub-package before or as the two structures are brought together to continuously seal each base stock pocket with the lid sub-package and form a sealed pouch having multiple compartments and products or materials sealed therein.
  • the combined base stock and lid sub-packages are then cut to separate the individual pouches.
  • pouches may be formed from four continuous webs.
  • the system is similar to that described above that uses three continuous webs but includes an additional continuous web that is applied to seal the base stock pockets to form base sub-packages before securing together the base sub-packages and the lid sub-packages.
  • base stock pockets are formed and filled as described above.
  • An additional sealing film is secured to the base stock film using a combination of heat, pressure and/or solvent to seal the base stock pockets and form the base sub-packages.
  • the base sub-packages and the lid sub- packages are secured together to form the sealed pouches having different products or materials sealed therein.
  • the base sub-packages and the lid sub-packages may be secured together using a combination of heat, pressure and/or solvent.
  • the base sub-packages and the lid sub-packages may be secured together using an adhesive. After securing together the base sub-packages and the lid sub-packages, the webs forming the pouches may be cut to separate the individual pouches.
  • An apparatus for forming sealed pouches comprising, a rotatable base forming drum having an outer surface with a plurality of base tooling cavities in the outer surface; a base stock supply mechanism for feeding a base stock film of material along a base stock path, a portion of the base stock path extending along the outer surface of the base forming drum; a system for displacing the base stock film into the base tooling cavities to form pockets of base stock film material within each base tooling cavity; a material feed mechanism for feeding at least one material into each pocket of the base stock film; a rotatable lid forming drum having an outer surface with a plurality of lid tooling cavities in the outer surface; a lid stock supply mechanism for feeding a lid stock film of material along a lid stock path, a portion of the lid stock path extending along the outer surface of the lid forming drum; a system for displacing the lid stock film into the lid tooling cavities to form a lid recess of lid stock web material within each lid tooling cavity; a material feed
  • an apparatus for forming sealed pouches includes a rotatable base forming drum having an outer surface with a plurality of base tooling recesses in the outer surface, a base stock supply mechanism for feeding a base stock web of material along a base stock path with a portion of the base stock path extending along the outer surface of the base forming drum, a heater system along the base stock path for heating the base stock web, a forming system for displacing the base stock web into the base tooling recesses to form a pocket of base stock material within each base tooling recess, and a material feed mechanism for feeding at least one material into the base tooling recesses in the outer surface of the base forming drum.
  • the apparatus further includes a lid stock supply mechanism for feeding a lid stock web of material along a lid stock path with the base stock path and the lid stock path intersecting downstream of the material feed mechanism, a hardenable material feed mechanism for feeding a hardenable material along one of the base stock path and the lid stock path, and a cooling system associated with one of the base stock path and the lid stock path to provide cooling along a length thereof to assist in cooling the hardenable material fed by the hardenable material feed mechanism.
  • a lid stock supply mechanism for feeding a lid stock web of material along a lid stock path with the base stock path and the lid stock path intersecting downstream of the material feed mechanism
  • a hardenable material feed mechanism for feeding a hardenable material along one of the base stock path and the lid stock path
  • a cooling system associated with one of the base stock path and the lid stock path to provide cooling along a length thereof to assist in cooling the hardenable material fed by the hardenable material feed mechanism.
  • a method of forming a sealed pouch includes providing a base stock web of material along a base stock path, heating the base stock web, forming a plurality of pockets in the base stock web, and feeding at least one material into each pocket.
  • the method further includes providing a lid stock web of material along a lid stock path with the base stock path and the lid stock path intersecting after the material is fed into a particular pocket, feeding a hardenable material along one of the base stock path and the lid stock path, cooling the hardenable material with a cooling medium, and securing the base stock web and the lid stock web together.
  • FIG. 1 is a schematic illustration of a pouch forming apparatus in which the principles disclosed herein may be used;
  • FIG. 2 is an enlarged, fragmented view of a portion of the lid forming drum of Fig. 1 and systems associated therewith;
  • FIG. 3 is an enlarged, fragmented view similar to Fig. 2 but illustrating a second embodiment of a cooling system associated with the lid forming drum;
  • Fig. 4 is perspective view of a pouch that may be formed with the apparatus of Fig. 1;
  • Fig. 5 is an end view of the pouch of Fig. 4;
  • FIG. 6 is a schematic illustration of an alternate embodiment of systems associated with the lid forming drum of Fig. 1;
  • Fig. 7 is an enlarged, fragmented view of a second embodiment of the lid forming drum of Fig. 1.
  • Figs. 4-5 depict a pouch or package 100 formed from two continuous webs of material.
  • the pouch 100 includes a base 90 including pocket 101 formed from a base stock film or web of material 70.
  • the pocket 101 includes four sidewalls 102 that extend downward from flange 103 and are interconnected by lower surface 104.
  • the pouch 100 is sealed by a cover or lid 110 formed from a lid stock film or web of material 75.
  • the lid includes a pair of relatively small recesses 111 that extend upward from a flange 112 of the lid.
  • the lid 110 may have one or more recesses 111 and the recesses may be of identical or different sizes and shapes and are oriented to overlie the pocket 101 with flanges 103 and 112 sealed together to form pouch 100.
  • the film may be formed of a soluble material such as a water soluble film.
  • the film may be formed of a polyvinyl alcohol material.
  • Pocket 101 and recesses 111 may be filled with any desired products and/or materials. As depicted in Figs. 4-5, pocket 101 may be filled with a powder material 105 such as a detergent and the recesses 111 may be filled with a paste or a wax -like hardenable material 113 such as another detergent, a liquid, or any other suitable material.
  • Fig. 1 is a schematic representation of a pouch forming apparatus or system 10 for forming a plurality of the pouches 100 depicted in Figs. 4-5.
  • Pouch forming apparatus 10 is generally similar to that disclosed in aforementioned U.S. Patent No. 3,218,776. In this regard, it includes a first section 20 for forming and filling the base stock film 70 and a second section 40 for forming and filling the lid stock film 75.
  • the first section 20 includes a rotatable base forming drum 21, a heater system 25, a supply roll 30 of material that is the base stock film 70, and a product feed mechanism 31.
  • the base forming drum 21 includes a plurality of base tooling cavities 22 extending inwardly along the outer surface 23 of the drum.
  • the base forming drum 21 may include a three-dimensional array of cavities 22 around the outer surface 23 so each manufacturing step operates relative to a plurality of horizontally aligned (into the page in Fig. 1) cavities 22.
  • a vacuum system indicated generally at 35 including conduits 36, seen in Fig. 1, are operatively connected to each cavity 22 to create a vacuum to draw a portion of the base stock film 70 into the cavity to form one of the pockets 101.
  • a vacuum system is well known in the art as seen, for example, in U.S. Patent No. 3,218,776.
  • a drive system (not shown) is operatively connected to the base forming drum 21 to rotate the drum continuously or intermittently, as desired in direction "A.”
  • the heater system 25 is depicted as a rotatable base stock heater roller 26 positioned adjacent the base forming drum 21 and includes an internal heater to heat the base stock film 70 prior to it contacting the base forming drum and being drawn into cavity 22 to form the pocket 101.
  • the heater system 25 may be configured as a cartridge-type heater within the base stock heater roller 26 but other types of heaters, either internal or external to a roller, may be used if desired.
  • a radiant-type heater external to a roller may be used.
  • a product feed mechanism 31 is positioned generally adjacent the upper section 24 of the base forming drum 21 to supply one or more products and/or materials into each pocket 101 as the pocket together with base stock film 70 move along with the rotatable drum 21.
  • the product feed mechanism 31 may be fixed and the base forming drum 21 may be either intermittently stopped or rotated slowly as the material is fed into pockets 101.
  • the product feed mechanism 31 may include a drive mechanism (not shown) to permit the product feed mechanism to move with the pockets 101 as the pockets move during rotation of the base forming drum 21.
  • the product feed mechanism 31 may be configured to feed any type, number or combination of products and/or materials including a solid, a powder, a liquid including paste or wax-type products, pills, tablets, or even other pouched products.
  • the second section 40 includes a rotatable lid forming drum 41, a heater system 45, a supply roll of continuous web material that forms the lid stock film 75, a lid stock product feed mechanism 51, and a lid stock wetting system 60.
  • the lid forming drum 41 includes a plurality of lid tooling cavities 42 extending inwardly along the outer surface 43 of the lid forming drum. As with the cavities 22 of base forming drum 21, the cavities 42 of lid forming drum 41 may be configured as a three-dimensional array upon the outer surface 43 of the lid forming drum.
  • a vacuum system generally similar to the vacuum system 35 of the base forming drum 21 indicated generally at 65 is operatively connected to each of the cavities 42 of the lid forming drum to create a vacuum within each cavity to draw a portion of the lid stock film 75 into the cavities 42 to form one or more lid recesses 110.
  • Conduits 66 of the vacuum system 65 are depicted schematically in Figs. 1, 2 and 3.
  • a drive system (not shown) is operatively connected to the lid forming drum 41 to rotate the drum continuously or intermittently, as desired in direction "B.”
  • the heater system 45 is depicted in Fig. 1 as a rotatable lid stock heater roller 46 and is positioned adjacent the lid forming drum 41 and includes an internal heater to heat the lid stock film 75 prior to it contacting the lid forming drum.
  • the heater system 45 may be of any type and, as with the heater system 25 associated with base forming drum 21, the heater system 45 associated with lid forming drum 41 may be internal or external to roller 46.
  • a lid stock product feed mechanism 51 is positioned generally adjacent the upper section 44 of the lid forming drum 41 to supply one or more products or materials into each lid recess 111 as the recesses together with lid stock film 75 move along with the upper surface of the rotatable drum 41.
  • the lid stock product feed mechanism 51 is fixed but it may include a drive mechanism (not shown) to permit the lid stock product feed mechanism to move with the lid recesses 111 as the recesses move along with the lid forming drum 41.
  • the lid stock product feed mechanism 51 may be configured as a hardenable material feed mechanism to feed any type of product or material in the form of a hardenable material such as a liquid, a paste or a wax-like material that hardens or solidifies after delivery. However, it may also be configured to deliver other materials such as solid objects, or the like that need not change phase.
  • Lid stock wetting system 60 is positioned adjacent the lid forming drum 41 at a position after (i.e., downstream from) the lid stock product feed mechanism 51 and before the lid stock film 75 seals the base stock film 70 at the base forming drum 21.
  • the lid stock wetting system 60 may apply a solvent to the lid stock film 75 to increase its tackiness to assist in adhering the lid stock film 75 to the base stock film 70.
  • the solvent may be provided through a wetting system or reservoir 62 to a wetting roller 61 that engages the lid stock film 75.
  • the solvent for the lid stock wetting system 60 may be water.
  • a lid stock wetting system 160 may be provided before or upstream of the lid stock product feed mechanism 51.
  • the lid stock wetting system 160 includes a wetting roller 161 that applies a solvent to the lid stock film 75 upstream of the lid stock product feed mechanism 51.
  • Such a configuration may be desirable or advantageous in situations in which the material delivered into to the lid recesses 111 of the lid stock film 75 extends above the surface or plane of the lid stock film.
  • the material will not contaminate the wetting roller 161.
  • the material within the recesses 111 extends above or is near the plane of the lid stock film 75 (i.e., the outer surface 43 of the lid forming drum 41), it may contact, and contaminate, the wetting roller 61.
  • the wetting system or reservoir 162 may be spaced from the wetting roller 161 and the solvent applied to a preliminary or transfer wetting roller 163 that engages the wetting roller 161 to transfer the solvent thereto.
  • the base forming drum 21 and the lid forming drum 41 are positioned adjacent each other so that after forming and filling each of the pockets 101 in base stock film 70 and lid recesses 111 the lid stock film 75 with the desired products and/or materials, the two films may be secured together to form the pouches 100.
  • one or both of the base forming drum 21 and the lid forming drum 41 may be resiliently mounted to permit relative movement between the two drums in order to apply pressure to the combined base stock film 70 and lid stock film 75 to secure the two films together at the portions defining flanges 103 and 112 of pouches 100.
  • a separate roller or rollers could be used to apply the required pressure to secure the two films together.
  • one or both of the base forming drum 21 and the lid forming drum 41 may have a resilient coating or material on the outer surface thereof.
  • a slitting knife 15 may be positioned after or downstream from the location at which the base stock film 70 and the lid stock film 75 are secured together to slit the combined films in a circumferential direction along the outer surface of base forming drum 21 to create a plurality of circumferential strips that each include a plurality of pouches 100.
  • a rotary knife 16 may be positioned after or downstream from the slitting knife 15 to cut the combined films laterally relative to the direction of rotation of the base forming drum 21 to cut the combined films into the individual pouches 100.
  • the individual pouches 100 are discharged onto a conveyor 17 for subsequent processing.
  • a cooling system indicated generally at 55 may be associated with the lid forming drum 41 to cool portions of the drum or a portion of a product or material in the lid recesses 111 formed in the lid stock film 75 within the drum cavities.
  • the cooling system 55 may include a liquid system that internally directs a liquid through conduits 56 within the lid forming drum 41 to each of the cavities 42 of the drum to cool all or a portion of the surface (e.g., a lower surface) of the cavity.
  • the cooling system 55 may include an air or pneumatic system (or a combination of the two) that internally directs a gas through conduits 56 within the lid forming drum 41 to each of the cavities 42 of the drum to cool all or a portion of the surface of the cavity.
  • the location and number of conduits 56 may be dependent upon the material and the temperature of the lid stock film 75, the temperature of the cavities 42 of the lid forming drum 41, the amount of cooling desired, the rate at which the lid forming drum is rotated, and the flow rate and type of medium (i.e., the fluid) being used as a cooling agent.
  • the cooling system 55 may include an external air or pneumatic system (or a combination of the two) that directs a gas from outside the lid forming drum 41 through external conduits 57 towards or into each of the lid recesses 111 in the film 75 within cavities 42 of the drum.
  • the gas cools all or a portion of the lid stock film 75, for example, the formed lid recesses 111 of the lid stock film, and/or any material placed within the recesses of the lid stock film.
  • the internal conduits 56 may be omitted from the lid forming drum 41 and the cooling system 55 configured to utilize the external conduits 57 without the internal conduits.
  • lid recesses 111 in the lid forming film may be that no cooling of the material in the lid recesses is necessary. For example, such would be the case if a solid object were placed in lid recesses 111 by the lid stock product feed mechanisms 51.
  • the outer surface 43 of lid forming drum 41 may include an insulative material 47 thereon as depicted in Fig. 7.
  • the insulative material may be any desired material including rubber, silicone, foam, and the like. If the insulative material 47 is a resilient material, it may function as the resilient coating or material referred to above that operates to assist in applying the desired pressure between the base forming drum 21 and the lid forming drum 41.
  • the insulative material 47 extends along the outer surface 43 and includes openings that correspond to and are aligned with the cavities 42 along the outer surface of the lid forming drum 41.
  • the insulative material 47 operates to insulate the lid stock film 75 from the lid forming drum 41 except within the cavities 42. More specifically, as the heated lid stock film 75 meets the lid forming drum 41, it contacts the insulative material 47 along the outer surface 43 of the lid forming drum rather than contacting the outer surface itself. Upon applying a vacuum through conduits 66 of vacuum system 65, the heated lid stock film 75 is drawn into the cavities 42. Once the lid stock film 75 contacts the cooled cavities 42, the portions of the film that are drawn into the cavities 42 to define the lid recesses are cooled.
  • the portions of the lid stock film 75 that form flanges 112 contact the insulative material 47 outside of the cavities 42 and are not cooled by the cooling system 55 due to the insulative properties of the insulative material 47. This aids in adhering the films 70 and 75 together to form pouches 100.
  • an insulative material may be applied to the outer surface 23 of the base forming drum 21.
  • the insulative material may be similar or identical to insulative material 47 described above that may be applied to the lid forming drum 41.
  • a base stock film 70 such as a polyvinyl alcohol film is fed from supply roll 30 and passes around a portion of rotatable base stock heater roller 26 and is heated to a temperature sufficient to allow thermoforming.
  • the temperature may be approximately 160° F but other temperatures may be utilized depending upon the material of the base stock film 70, the desired manufacturing characteristics, and the performance of the apparatus 10.
  • the heated base stock film 70 is routed around the base forming drum 21 and a vacuum applied to each cavity 22 pulls a portion of the heated film 70 into each cavity 22 to form the base stock pockets 101 of the pouches 100.
  • the product feed mechanism 31 operates to fill each base stock pocket 101 to a desired level with one or more products or materials such as powdered detergent or other material.
  • the lid stock film 75 is fed from supply roll 50 and passes around a portion of rotatable lid stock heater roller 46 and is heated to a temperature sufficient to allow thermoforming.
  • the lid stock film 75 may be heated to a temperature of approximately 160° F though other temperatures may be used.
  • the heated lid stock film 75 is routed around the lid forming drum 41 and a vacuum applied to each cavity 42 pulls a portion of the heated lid stock film 75 into each cavity to form the lid recesses 111 of the pouches 100.
  • the lid stock product feed mechanism 51 operates to deliver material to each lid stock recess 111 to a desired level.
  • the material may be a hardenable material such as a wax- or paste-like detergent in the form of a heated liquid or other suitable material.
  • the cooling system 55 if employed, is operative to cool the hardenable material within the lid stock recesses 111 sufficiently so that the lid stock film 75 may be further processed without movement of the liquid material within the recesses.
  • the lid cooling system is operative to cool the heated lid stock film 75 and the material within the recesses 111 as desired.
  • the cooling system may direct air or another gas towards the material within the lid recesses 111 to provide cooling.
  • the liquid material may be sufficiently cooled if a somewhat solidified layer or surface film has been formed about its outer surface such that it adheres to itself to form a unitary element around the liquid interior. It does not flow out of the lid recesses as the lid stock film rotates around the lid forming drum 41.
  • the material within the recesses 111 may be sufficiently cool so that it does not react with the material within the pocket 101 as the base stock film 70 and the lid stock film 75 are brought together during the sealing process described.
  • the material delivered to the lid recesses 111 or the properties of that material it may not be necessary to include cooling of the lid stock drum 41 or the lid stock film 75 in the process of completing filled pouches 100.
  • the lid stock film may be wetted by the lid stock wetting system 60. In doing so, water or another solvent may be applied to the lid stock film 75 so that the film becomes sufficiently tacky to assist in securing the lid stock film 75 to the base stock film 70 along the portions defining flanges 103 and 112.
  • the base forming drum 21 and the lid forming drum 41 are positioned in close proximity to apply pressure and force the base stock film 70 and the lid stock film 75 into contact with sufficient pressure to cause the two films to bond together at flanges 103 and 112 to seal the pockets 101 and form the pouches 100.
  • the combined base stock film 70 and lid stock film 75 continues to travel around the base forming drum 21 until reaching the slitting knife 15 and the rotary knife 16 which cut the combined films into the individual pouches 100.
  • the individual pouches 100 may then be discharged along conveyor 17 for further processing.
  • the lid 110 is depicted with two distinct lid recesses 111 that include material therein, the lid may include any number of recesses with material therein including one or more.
  • pouch forming system 10 is configured to form pouches 100 having recesses 111 formed in the lid 110 and the hardenabie material 113 in the recesses 1 1 1, recesses may also or alternatively be formed in the lower surface 104 of the pocket 101 , In other words, the lower surface 104 of the pocket 101 may include recesses into which hardenabie material 113 is inserted.
  • the cavities 22 of the base forming drum 21 may include recesses in the lower surface thereof that correspond to the recesses of the lower surface 104, Upon vacuum forming the pocket 101, the recesses in the lower surface 104 may also be formed.
  • a product feed mechanism similar to the lid stock product feed mechanism 51 may also be provided to feed a hardenabie material into the recesses in the lower surface 104.
  • a cooling system similar to the cooling system 55 may also be provided or associated with the base forming drum 21 to cool and harden the hardenabie material.
  • an insulative material (not shown) may be applied to the outer surface 23 of the base forming drum 21.
  • the insulative material may be similar or identical to insulative material 47 described above that may be applied to the lid forming drum 41 and the description thereof is not repeated.
  • the pouch forming system may include a hardenable material feed mechanism and a cooling system associated with each of the base forming drum 21 and the lid forming drum 41.
  • the hardenable material feed mechanism associated with the base forming drum 21 is positioned upstream of the product feed mechanism 31 so that the hardenable material may be inserted or applied and cooled to a desired state prior to inserting additional products and/or materials into the pocket 101.
  • the pouch forming system includes a hardenable material feed mechanism and may include a cooling system, each being associated with the base forming drum 21, and the lid forming drum 41 may be replaced by a lid stock supply roller (not shown) that routes or directs the lid stock film to the desired location for subsequent sealing of the pockets 101.
  • the hardenable material may be applied to or on top of material within the pocket 101.
  • hardenable material may be applied on top of the material already within the pocket.
  • a cooling system similar to that depicted in Fig. 3 may be utilized with the cooling conduits providing a cooling gas to the pocket 101.
  • the lid 110 is depicted with two distinct recesses 111 that include hardened material therein, the lid may include any number of recesses with hardened material therein including one or more. In addition, in some instances (such as when the hardenable material is located within the pocket 101), the lid 110 may not include any recesses 1 1 1 with hardened material therein. Further, such lid may include another type of product or material such as a pill or tablet affixed thereto.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Making Paper Articles (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)

Abstract

Appareil pour former des sachets comprenant : un tambour de formation de sachet comportant des cavités d'outillage de base, un mécanisme acheminant un film de stock de base le long d'un chemin de stock de base, un système déplaçant le film de stock de base dans les cavités d'outillage de base pour former des poches dans chaque cavité d'outillage de base ; un mécanisme acheminant un matériau dans chaque poche du film de stock de base ; un tambour de formation de couvercle comportant des cavités d'outillage de couvercle, un mécanisme acheminant un film de stock de couvercle le long d'un chemin de stock de couvercle, un système déplaçant le film de stock de couvercle dans les cavités d'outillage de couvercle pour former des évidements de couvercle à l'intérieur de chaque cavité d'outillage de couvercle ; un mécanisme acheminant un matériau dans chaque évidement de couvercle du film de stock de couvercle ; et un mécanisme amenant le film de stock de base et le film de stock de couvercle en contact sous pression. Selon une forme, le matériau acheminé dans les évidements de couvercle est un matériau durcissable. Selon une autre, le refroidissement est utilisé pour refroidir les évidements de couvercle.
PCT/US2016/055428 2015-10-07 2016-10-05 Système de formation de paquets à partir de matériau en film WO2017062411A2 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US201562238494P 2015-10-07 2015-10-07
US62/238,494 2015-10-07
US15/004,409 2016-01-22
US15/004,409 US20170101204A1 (en) 2015-10-07 2016-01-22 System for Forming Packages From Film Material
US15/225,410 US20170101203A1 (en) 2015-10-07 2016-08-01 System for forming packages from film material
US15/225,410 2016-08-01

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WO2017062411A2 true WO2017062411A2 (fr) 2017-04-13
WO2017062411A3 WO2017062411A3 (fr) 2017-06-22

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CN111989266B (zh) 2018-04-19 2022-05-27 丘奇和德怀特有限公司 用于填充带腔包装的设备、系统和方法
PL4101774T3 (pl) * 2021-06-11 2024-03-18 Harro Höfliger Verpackungsmaschinen GmbH Urządzenie uszczelniające i sposób uszczelniania opakowań
EP4190707A1 (fr) * 2021-12-03 2023-06-07 Fameccanica.Data S.p.A. Unité de mouillage et machine de formage et procédé de fabrication d'articles de dose unitaire

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WO2017062411A3 (fr) 2017-06-22
US20170101203A1 (en) 2017-04-13

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