WO2001044052A1 - Vertical bagging apparatus - Google Patents
Vertical bagging apparatus Download PDFInfo
- Publication number
- WO2001044052A1 WO2001044052A1 PCT/US2000/034220 US0034220W WO0144052A1 WO 2001044052 A1 WO2001044052 A1 WO 2001044052A1 US 0034220 W US0034220 W US 0034220W WO 0144052 A1 WO0144052 A1 WO 0144052A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sealing
- film
- packaging material
- severing
- roll
- Prior art date
Links
Classifications
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- 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
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- 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
- B29C65/741—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 characterised by the relationships between the joining step and the severing step
- B29C65/7411—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 characterised by the relationships between the joining step and the severing step characterised by the temperature relationship between the joining step and the severing step
- B29C65/7412—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 characterised by the relationships between the joining step and the severing step characterised by the temperature relationship between the joining step and the severing step the joining step and the severing step being performed at different temperatures
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- 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
- B29C65/743—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 the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
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- 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
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- 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
- B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
- B29C66/0042—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined
- B29C66/0044—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined using a separating sheet, e.g. fixed on the joining tool
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- 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
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- 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
- B29C66/349—Cooling the welding zone on the welding spot
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- 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
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- 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
- B29C66/814—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 design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81411—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
- B29C66/81421—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
- B29C66/81422—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
-
- 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
- B29C66/814—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 design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81427—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
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- 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
- B29C66/8225—Crank mechanisms
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- 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
-
- 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
- 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
- B29C66/349—Cooling the welding zone on the welding spot
- B29C66/3492—Cooling the welding zone on the welding spot by means placed on the side opposed to the welding tool
-
- 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
- B29C66/814—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 design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81411—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
- B29C66/81415—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
- B29C66/81417—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled being V-shaped
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- 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
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- 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
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- 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
- B65B9/22—Forming shoulders; Tube formers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/283—With means to control or modify temperature of apparatus or work
- Y10T83/293—Of tool
Definitions
- the present invention relates, in general, to the packaging of products in flexible bags or containers and, more particularly, relates to an improved apparatus for bagging a product in a deformable bag and sealing it therein.
- plastic bags have considerable strength and, further, have storage capabilities which enhance product quality and extend useful life. Mass production of these bags through automated machines has made them particularly desirable, feasible and cost effective.
- Prior art Figure 1 schematically illustrates a typical bagging apparatus 10.
- the apparatus 10 includes a roll of plastic 12 which is folded at one end 14.
- the roll of plastic 12 is located with its axis 16 horizontal and is fed through several feed rollers 18, 20, 22 until it assumes a vertical position.
- a spreading device 24 is arranged to open the free end 15 of the folded plastic so that a product may be placed between the folded plastic film.
- Prior art Figure 2 schematically illustrates a sealing device 28. The sealing device would be located beneath the spreading device 24 in
- the sealing device 28 generally includes an L- shaped heated bar 30 and an L-shaped resilient sealing surface
- the two L-shaped members 30, 32 are slideably mounted on rods 34, 36 so that they may be moved together and apart.
- the heated bar 30 is movable within a clamp 38 and has a rounded end 39.
- the prior art bagging apparatus has several disadvantages. First, the product must enter the apparatus horizontally between the spreading apparatus and rollers. Second, it is difficult to alter the size of the bags to accommodate different sized products. Third, in order to prevent ragged uneven seals, the heated bar must be coated with a non-stick material. Nevertheless, repeated cycling causes some residual buildup of plastic on the heated bar since it must penetrate the plastic to sever the bag from the roll. The abrasion on the bar by the act of penetrating the plastic causes the non-stick coating to wear off.
- the vertical bagging apparatus of the present invention includes a vertically mounted spool for dispensing a roll of centerfold plastic film with the fold in the upper position.
- a pair of vertical metering rollers are mounted adjacent to the spool for advancing the film from the spool.
- An adjustable generally inverted-V-shaped film inverted is mounted downstream from the metering rollers.
- a sealing and severing system is located beneath the film invertor and a trim spool is located beneath the sealing and severing system.
- the film invertor turns the film inside out, relocating the fold from the horizontal axis to the vertical axis.
- the film invertor also causes the open end of the folded film to be accessible from either above or the side.
- the film invertor is adjustable by raising and lowering the apex of the inverted-V which relocates the horizontal location of the fold in the film.
- the film invertor is made from flexible wire and the free ends of the wire are attached to a takeup shaft .
- the sealing and severing system includes a flat faced heated bar and a sharp contoured compliant sealing surface. This system provides sealing and severing without buildup of plastic material on the heated bar because the severing is actually performed by the cool sealing surface rather than by the heated bar.
- the sealing and severing system is preferably arranged on gear coupled double pivot arms and is actuated by a double piston arrangement. Additional objects and advantages of the invention will become apparent to those skilled in the art upon reference to the detailed description taken in conjunction with the provided figures . BRIEF DESCRIPTION OF THE DRAWINGS
- Figure 1 is a schematic perspective view of a portion of a prior art bagging apparatus
- Figure 2 is a schematic perspective view of the sealing and severing portion of a prior art bagging apparatus
- Figures 3A and 3B are side elevational views of a portion of the prior art sealing and severing apparatus
- Figure 4 is a schematic perspective view of a portion of a vertical bagging apparatus according to the invention.
- Figure 5 is a view similar to Figure 4 but with the sealing and severing system removed;
- Figure 6 is an enlarged perspective view of the film invertor
- Figure 7 is a schematic side elevational view of the film invertor in three different positions
- Figure 8 is an enlarged perspective view of the sealing and severing system
- Figures 9a and 9b are side elevational views of the sealing and severing system
- Figure 9c is an enlarged side elevational view of a portion of the sealing and severing system
- the vertical bagging apparatus 100 includes a vertically mounted spool 102 for dispensing a roll of centerfold plastic film 104 with the fold 106 in the upper position.
- a pair of vertical metering rollers 108, 110 are mounted adjacent to the spool 102 for advancing the film 104 from the spool 102.
- a slack roller arm 112 is also provided between the spool 102 and the metering rollers 108, 110.
- An adjustable generally inverted-V-shaped film invertor 114 is mounted downstream from the metering rollers 108, 110.
- a sealing and severing system 116 is located beneath the film invertor 114 and a trim spool 118 is located beneath the sealing and severing system 116.
- the film invertor 114 is preferably made from a flexible wire 120 which is formed into an -inverted-V- shape by attaching the center 122 of the wire
- the film invertor 114 turns the film 104 inside out, relocating the fold 106 rom the horizontal axis to the vertical axis.
- the film invertor also causes the open end of the folded film 104 to be accessible from either above or the side.
- the film invertor 114 is adjustable by raising and lowering the lever 124 which raises and lowers the apex of the inverted-V which relocates the horizontal location of the fold 106 in the film.
- Figure 7 illustrates three different sizes of film 104a, 104b, 104c and shows the respective locations of their folds 106a, 106b, 106c.
- the sealing and severing system 116 includes an L-shaped heated bar 140 and a corresponding L-shaped sealing surface 142.
- the heated bar 140 is an L-shaped heated bar 140 and a corresponding L-shaped sealing surface 142.
- Each pivot arm has a pair of spaced apart pivot points 144a, 144b, 146a, 146b.
- the pivot points 144a and 146a are coupled to each other by a rod 148a and two gears 150a, 152a.
- the pivot points 144b and 146b are coupled to each other by a rod 148b and two gears 150b, 152b.
- the pivot arms 144, 146 are actuated by a pair of spaced apart piston actuators 154a, 154b, each having a piston rod 156a, 156b as shown in Figure 8.
- the gear and bar couplings allow the L-shaped members to maintain a parallel relationship she sealing and severing as illustrated in Figures 9a and 9b.
- the heated bar 140 is flat faced and surrounded by a clamp 158.
- the sealing surface 142 is provided with a sharp contour 160.
- the clamp 158 holds the plastic film against the sealing surface 142 and the heated bar 140 moves forward to press the film 104 onto the sharp contour 160 of the sealing surface.
- This system provides sealing and severing without buildup of plastic material on the heated bar 140 because the severing is actually performed by the contour 160 on the cool sealing surface 142 rather than by the heated bar.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Package Closures (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00986486A EP1248727A4 (en) | 1999-12-14 | 2000-12-13 | Vertical bagging apparatus |
AU22715/01A AU2271501A (en) | 1999-12-14 | 2000-12-13 | Vertical bagging apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/460,836 US6775962B1 (en) | 1999-12-14 | 1999-12-14 | Vertical bagging apparatus |
US09/460,836 | 1999-12-14 |
Publications (1)
Publication Number | Publication Date |
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WO2001044052A1 true WO2001044052A1 (en) | 2001-06-21 |
Family
ID=23830266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/034220 WO2001044052A1 (en) | 1999-12-14 | 2000-12-13 | Vertical bagging apparatus |
Country Status (4)
Country | Link |
---|---|
US (1) | US6775962B1 (en) |
EP (1) | EP1248727A4 (en) |
AU (1) | AU2271501A (en) |
WO (1) | WO2001044052A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008058389A1 (en) * | 2006-11-17 | 2008-05-22 | Liqui-Box Canada Inc. | A reslilient backing member for use with an impusle heating element |
US11124018B1 (en) * | 2017-10-02 | 2021-09-21 | David M. Brown | Paint storage system, device, and method for storing paint |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
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US2966021A (en) * | 1955-12-20 | 1960-12-27 | Liqua Pak Inc | Apparatus for forming, filling, sealing and severing containers |
US3063890A (en) * | 1959-11-16 | 1962-11-13 | Pneumatic Scale Corp | Apparatus for and method of sealing thermoplastic tubes |
US3094823A (en) * | 1962-01-03 | 1963-06-25 | Renfro Hosiery Mills Company | Apparatus and method for forming sales packages |
US3449889A (en) * | 1966-11-21 | 1969-06-17 | Phillips Petroleum Co | Scrap removal from thermoplastic packaging operations |
US3538676A (en) * | 1967-03-08 | 1970-11-10 | William R Runo | Packaging machine |
US3583888A (en) * | 1969-04-10 | 1971-06-08 | Shanklin Research Corp | Packaging apparatus and method |
US3766710A (en) * | 1972-01-18 | 1973-10-23 | Bemis Co Inc | Apparatus for closing plastic bags |
US4219988A (en) * | 1977-10-11 | 1980-09-02 | Shanklin Corporation | Automatic high-speed wrapping machine |
US4433527A (en) * | 1981-08-19 | 1984-02-28 | E. I. Du Pont De Nemours And Company | Heat sealing film cut-off device |
JPS6445206A (en) * | 1987-08-05 | 1989-02-17 | Mitsuwa Co Ltd | Device for opening folded packing film |
US5247779A (en) * | 1989-12-20 | 1993-09-28 | Du Pont Canada Inc. | Self voiding jaw for packaging machine |
US5347795A (en) * | 1991-10-03 | 1994-09-20 | Ishida Scales Mfg. Co., Ltd. | Transverse sealer for packaging machine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2852898A (en) * | 1958-03-05 | 1958-09-23 | Super Valu Stores Inc | Bag filling and sealing machines |
US3409494A (en) * | 1966-03-03 | 1968-11-05 | Hercules Inc | Sealing element for shrink film packaging machine |
US5475964A (en) * | 1994-06-24 | 1995-12-19 | E.I. Du Pont De Nemours And Company | Transverse heat-sealing apparatus for continuous shrink film packaging |
GB9804866D0 (en) * | 1998-03-07 | 1998-04-29 | Ceetak Developments Limited | Cutting and/or sealing sheet or roll plastics material |
-
1999
- 1999-12-14 US US09/460,836 patent/US6775962B1/en not_active Expired - Fee Related
-
2000
- 2000-12-13 AU AU22715/01A patent/AU2271501A/en not_active Abandoned
- 2000-12-13 WO PCT/US2000/034220 patent/WO2001044052A1/en active Application Filing
- 2000-12-13 EP EP00986486A patent/EP1248727A4/en not_active Withdrawn
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2966021A (en) * | 1955-12-20 | 1960-12-27 | Liqua Pak Inc | Apparatus for forming, filling, sealing and severing containers |
US3063890A (en) * | 1959-11-16 | 1962-11-13 | Pneumatic Scale Corp | Apparatus for and method of sealing thermoplastic tubes |
US3094823A (en) * | 1962-01-03 | 1963-06-25 | Renfro Hosiery Mills Company | Apparatus and method for forming sales packages |
US3449889A (en) * | 1966-11-21 | 1969-06-17 | Phillips Petroleum Co | Scrap removal from thermoplastic packaging operations |
US3538676A (en) * | 1967-03-08 | 1970-11-10 | William R Runo | Packaging machine |
US3583888A (en) * | 1969-04-10 | 1971-06-08 | Shanklin Research Corp | Packaging apparatus and method |
US3766710A (en) * | 1972-01-18 | 1973-10-23 | Bemis Co Inc | Apparatus for closing plastic bags |
US4219988A (en) * | 1977-10-11 | 1980-09-02 | Shanklin Corporation | Automatic high-speed wrapping machine |
US4433527A (en) * | 1981-08-19 | 1984-02-28 | E. I. Du Pont De Nemours And Company | Heat sealing film cut-off device |
JPS6445206A (en) * | 1987-08-05 | 1989-02-17 | Mitsuwa Co Ltd | Device for opening folded packing film |
US5247779A (en) * | 1989-12-20 | 1993-09-28 | Du Pont Canada Inc. | Self voiding jaw for packaging machine |
US5347795A (en) * | 1991-10-03 | 1994-09-20 | Ishida Scales Mfg. Co., Ltd. | Transverse sealer for packaging machine |
Non-Patent Citations (1)
Title |
---|
See also references of EP1248727A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1248727A1 (en) | 2002-10-16 |
US6775962B1 (en) | 2004-08-17 |
AU2271501A (en) | 2001-06-25 |
EP1248727A4 (en) | 2006-04-12 |
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