WO2002053457A1 - Machine d'emballage automatique a grande vitesse - Google Patents

Machine d'emballage automatique a grande vitesse Download PDF

Info

Publication number
WO2002053457A1
WO2002053457A1 PCT/US2001/049599 US0149599W WO02053457A1 WO 2002053457 A1 WO2002053457 A1 WO 2002053457A1 US 0149599 W US0149599 W US 0149599W WO 02053457 A1 WO02053457 A1 WO 02053457A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
packages
sealer
conveyor
belts
Prior art date
Application number
PCT/US2001/049599
Other languages
English (en)
Other versions
WO2002053457A8 (fr
Inventor
Foster Guzman
Original Assignee
Belco Packaging Systems, Inc.
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 Belco Packaging Systems, Inc. filed Critical Belco Packaging Systems, Inc.
Priority to US10/465,989 priority Critical patent/US6962033B2/en
Priority to AU2002239674A priority patent/AU2002239674A1/en
Publication of WO2002053457A1 publication Critical patent/WO2002053457A1/fr
Publication of WO2002053457A8 publication Critical patent/WO2002053457A8/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • 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
    • B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
    • B29C65/221—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip
    • B29C65/222—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip comprising at least a single heated wire
    • 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
    • B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
    • B29C65/221—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip
    • B29C65/224—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip being a resistive ribbon, a resistive band or a resistive strip
    • 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
    • B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
    • B29C65/228—Heated wire resistive ribbon, resistive band or resistive strip characterised by the means for electrically connecting the ends of said heated wire, resistive ribbon, resistive band or resistive strip
    • 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
    • B29C65/7433—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 the tool being a wire
    • 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
    • B29C65/7439—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 for continuously and longitudinally welding and severing webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7861—In-line machines, i.e. feeding, joining and discharging are in one production line
    • B29C65/787—In-line machines, i.e. feeding, joining and discharging are in one production line using conveyor belts or conveyor chains
    • B29C65/7873—In-line machines, i.e. feeding, joining and discharging are in one production line using conveyor belts or conveyor chains using cooperating conveyor belts or cooperating conveyor chains
    • 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8224—Chain or sprocket drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—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
    • 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
    • B29C66/87—Auxiliary operations or devices
    • B29C66/872—Starting or stopping procedures
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • 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
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
    • B65B53/063—Tunnels
    • 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
    • B65B57/00—Automatic control, checking, warning, or safety devices
    • B65B57/10—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged
    • B65B57/16—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged and operating to stop, or to control the speed of, the machine as a whole
    • 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
    • B65B59/001—Arrangements to enable adjustments related to the product to be packaged
    • 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
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B9/067—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it the web advancing continuously
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73715—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable heat-shrinkable
    • 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
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83421—Roller, cylinder or drum types; Band or belt types; Ball types band or belt types
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
    • B29C66/91212—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods involving measurement means being part of the welding jaws, e.g. integrated in the welding 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91231—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the joining tool

Definitions

  • This invention relates to automatic package wrapping machines and in particular to a machine which wraps packages in polymer film, including heat shrinkable thermoplastic film, and seals the edges of the film to completely encase the packages within the film where the packages move continuously at a high rate of speed through the machine.
  • packages are moved towards a cutting and sealing area by an in-feed conveyor. As the packages are moved towards the cutting and sealing area, the packages are surrounded by center folded polymer or shrink wrap film that has been partially unfolded so that the packages may be conveyed between the film layers. Subsequently, the packages are transferred to an exit conveyor where the packages move to a designated sealing and cutting location. At the sealing and cutting location, it is typical to stop the forward movement of the exit conveyor and use a hot knife or hot wire system to longitudinally and laterally seal the layers of polymer film and to sever the film between adjacent packages at the lateral or cross seal.
  • the end result of the cutting and sealing operations are packages that are securely enclosed or "bagged" within polymer film.
  • the exit conveyor is again activated and the packages are typically either packed for shipping or are further conveyed to a shrink wrap tunnel or oven, where the film is heated causing it to shrink over the packages thereby securely wrapping the packages.
  • a shrink wrap tunnel or oven where the film is heated causing it to shrink over the packages thereby securely wrapping the packages.
  • PatentNo.3,583,888 issued to Shanklin, entitled “Packaging Wrapping Apparatus andMethod.”
  • An L-sealer uses an L-shaped hot knife to contemporaneously cross-seal and side seal the layers of polymer film when the package is stopped at the cutting and sealing location.
  • L-shaped hot knives are typically coated with Teflon, so that melted polymer film will not stick to the knife.
  • An advantage of L-sealers is that the packages they make are neat and attractive having trim seals on three sides and clear film on the fourth side and top and bottom.
  • L-sealers however, have several disadvantages. The dimensions of L-shaped hot knives must be larger than the size of the packages being wrapped.
  • L-sealers cannot produce longitudinal seals longer than the length of the knife.
  • a high speed package wrapping machine capable of continuous operation during both side and cross sealing functions.
  • the machine should be readily adaptable for use with a wide range of package sizes without requiring the need to replace hot knives or other hardware to accommodate different size packages.
  • Such a machine would thus be simpler and have a quicker setup time than existing machines.
  • such a machme would utilize a sealing mechanism that improves on existing hot knife, hot wire, and ultrasonic sealing devices.
  • the high speed wrapping machine of the present invention solves many of the above mentioned problems by providing an in-line wrapping machine capable of wrapping a wide range of package sizes through simple on-machine adjustments.
  • the machine is capable of continuously wrapping packages at film velocities of 65 feet per minute.
  • the machine includes a powered film dispenser, an in-feed conveyor, a film inverter, a side sealer and conveyor, and a traveling end sealer and conveyor.
  • Packages enter the machine on the in-line, in-feed conveyor. Center-folded film is fed from a powered film dispenser mounted at the rear of the machine and passes over the adjustable film inverting head. The inverting head turns the film inside out, leaving an opening into which packages maybe inserted.
  • the in-feed conveyor carries packages through the film inverting head where they are wrapped with polymer film.
  • a side sealer equipped with a hot tapered drag wire, and a hot post cutoff, begins the process of drawing the film through the sealer at about the same rate as packages advance on the conveyor. This permits light and heavy films to be fed through the machine without distorting the film.
  • the side sealer makes a continuous seal and trims the selvage off the packages creating a sealed tube as the film advances through the machine.
  • the side sealer is driven by a main drive motor via a power-take-off shaft which also drives the side seal conveyor. This provides for smooth package and film travel at various speeds.
  • the horizontal package carrying surfaces of the in-feed conveyor, the side seal conveyor, and the traveling end seal conveyor are mounted at the same elevation to ensure that packages are carried smoothly through the machine.
  • package length is not limited by the length of the sealing system, and packages of very long lengths can be wrapped if supported by conveyors.
  • a traveling end seal mechanism seals the trailing edge of the package and simultaneously seals the leading edge of the next package traveling through the machine.
  • the traveling end sealer is equipped with a photocell trigger such that as a package breaks the photocell beam, a unique combination of linear and rotary air cylinders, in combination with a partial revolution clutch, a variable speed transmission, and other drive components, causes the sealing j aws to close, while simultaneously, the end sealer moves forward longitudinally on a traveling carriage assembly.
  • the carriage assembly reciprocates back and forth along one or more linear bearings.
  • the machine includes a discharge conveyor which utilizes a single belt which extends through the traveling end sealer to the end of the machine.
  • the traveling end sealer moves longitudinally at about the same speed as the packages.
  • the traveling carriage assembly' s speed may be independently controlled by means of the variable speed transmission incorporated in the drive system.
  • FIG. 1 is a perspective view, from the front, of a high speed film wrapping machine in accordance with the present invention.
  • FIG. 2 is a perspective view of the high speed film wrapping machine shown in FIG. 1, with the traveling end seal mechanism and associated conveyor assembly of the machine longitudinally separated from other subassemblies for clarity, with the supporting structure removed to expose the details of the invention.
  • FIG. 2A is a view, in schematic form, taken along the line B-B, as shown in FIG. 2, of a film inverter according to the present invention.
  • FIG. 3 is a schematic of the power transmission for the entire system for the entire machine shown in FIG. 1.
  • FIG.4 is a top view of the machine of FIG. 1 showing the packages as they travel through the machine.
  • FIG. 5 is a perspective view of the packages of FIG.4 showing the state of the film sealing procedure corresponding to package flow through the machine.
  • FIG. 6 is a perspective view of the side sealing mechanism of the present invention.
  • FIG.7 is aperspective view of the sealing jaw which forms part of the sealing mechanism.
  • FIG. 8 is a top view of the side sealing mechanism of FIG. 7 showing the offset and horizontal spacing of the film feed pulleys of the side seal unit.
  • FIG. 9 is a perspective view of the side sealing mechanism of the present invention, partially cutaway to reveal internal details.
  • FIG. 10 is a side view of the side sealing mechanism shown in FIG. 9.
  • FIG. 11 is a perspective view of the traveling end seal mechanism of the machine of FIG. 1.
  • FIG. 12 is a front view of aportion of the traveling end seal mechanism shown in FIG. 11.
  • FIG. 13 is a perspective view of hot drag wire shown in FIG. 7.
  • FIG. 14 is an enlarged view of Detail B shown in FIG. 13.
  • FIG. 15 is a sectional view taken along the line A-A as shown in FIG. 13, showing the cross section of the tapered drag wire.
  • FIGS . 1 and 2 show perspective views of the high speed wrapping machine of the present invention, generally designated 10.
  • the machine comprises an in-feed conveyor 20, a film dispenser 30, an inverting head 40, a side sealer 50, a side seal conveyor 60, a traveling end sealer 70, an end seal conveyor unit 80, a control panel 2, and a power transmission system 100.
  • the machine 10 wraps apackage ("P") in a flexible polymer film 32 in which the direction of package flow through the machine is essentially continuous and in a straight line.
  • the film is supplied to the machine as a center folded web at right angles to the direction 22 of flow of the packages (best shown in FIG. 4) through the machine.
  • the film is provided to the inverting head 40 where the film is redirected and turned inside out to provide film traveling in the same direction as the packages delivered by the in-feed conveyor 20.
  • the in-feed conveyor 20 pulls the packages (P6) into the inverting head 40 to cause them to be enclosed by the folded film 32 supplied by the film dispenser 30 on the top, and on one side of each package with the other side of each package adjacent to the edges of the folded film.
  • the packages (P5) thus enclosed in the web of film pass from the in-feed conveyor to the side seal conveyor 60, where a speed differential between the two conveyors uniformly spaces the packages on the side seal conveyor. The speed differential and thus the spacing between packages is adjustable by the machine' s operator.
  • the side sealer 50 As the packages pass the side sealer 50, the two free edges of the folded film are sealed to form the continuous tube of film 36 which envelopes the succession of packages which are being fed into the machme by the in-feed conveyor (P4 and P5).
  • the side sealer also severs the excess width of film from the tube and this scrap film 38 is removed by the take-up wheel assembly 302.
  • the traveling end sealer 70 seals the trailing edge of each package while simultaneously sealing the leading edge of the succeeding package in the machine 10 (P2).
  • the end sealer also severs one package from another while the packages are traveling without stopping the machine.
  • the end seal mechanism is designed so that it travels a short distance with apackage at substantially the same velocity as the package for the duration of time required to make the seal.
  • the end seal mechanism releases from the film and returns to its original position to repeat the end seal for the next package.
  • the wrapped package may optionally then be conveyed through a shrink tunnel (shown schematically in FIG. 5) if shrinking of the film around the package is desired (PI).
  • the in-feed conveyor 20 feeds packages into the machine 10.
  • the in-feed conveyor comprises an endless belt 22 and a conveyor plate 24.
  • a drive roller 26 At one end of the conveyer plate is a drive roller 26 and an idler or tension roller 28.
  • the plate At the conveyor plate's opposite end, the plate has a rounded nosepiece 210, which is used in place of a more conventional idler roller.
  • the drive roller is connected to a motor 204 by means of a pulley and belt arrangement, where a pulley 208 is connected to the motor output shaft and a pulley 206 is connected to the drive roller and the two pulleys are coupled by a drive belt 202.
  • the endless belt 22 is fitted over the drive roller, idler roller, and conveyor plate.
  • Belt slack is taken up by the idler roller which may be equipped with a biasing feature for automatic belt tension adjustment.
  • Methods of tensioning idler rollers are well known to those skilled in the art.
  • the in-feed conveyor is driven at a constant speed.
  • the speed of the motor 204 is electrically controlled by means of the control panel 2.
  • Control of the in-feed drive motor is electrically coupled to that of the main drive system (to be described).
  • the control logic includes the ability to maintain a speed differential between the in- feed conveyor and the side seal conveyor 60 as the overall system speed is increased or decreased.
  • the speed of the in-feed drive motor is less than that of side seal conveyor, hi general, the slower the in-feed conveyor runs in comparison to the side seal conveyor, the greater will be the spacing between packages. If the in-feed conveyor is run at a speed close the to that of the side seal conveyor the spacing between packages will be quite small.
  • the in- feed/side seal conveyor speed differential is easily controlled by the machine' s operator and the subsequent package spacing may be visually verified.
  • the in-feed conveyor further includes package guides 212 and 214, where guide 214 is a fixed guide, and guide 212 is laterally movable with respect to the fixed guide.
  • the guides allow the machine 10 to be readily adjusted to accommodate packages of varying widths.
  • the lateral position of the in-feed conveyor is adjustable with respect to the side seal conveyor.
  • the in-feed conveyor is laterally adjustable by rotating a control wheel 210.
  • the lateral adjustment mechanism (not shown) may comprise screw leads, ball slides, or any other suitable adjustment mechanism.
  • the film inverter 40 of the present invention comprises a first movable triangular inverting head 42A which is positioned above the in-feed conveyor, a second fixed triangular inverting head 42B (not shown) which is positioned below the in-feed conveyor.
  • the first inverting head is attached to a vertical inverting head adjustment assembly 44 which serves to raise or lower the first inverting head in. order to accommodate packages of various heights.
  • the present embodiment of the vertical inverting head adjustment assembly comprises a screw lead 48 which is driven by an adjustment wheel 402 and is guided by twin linear guides 46. This embodiment is meant to be exemplary only. Those skilled in the art will recognize that alternative means of accomplishing the vertical adjustment of the inverting head are possible.
  • elements 404A and 404B of the upper and lower inverting heads respectively should be substantially at an angle of 45 degrees with respect to the direction of package flow 22.
  • elements 406A and 406B of the upper and lower inverting heads should be at substantially right angles to the flow of film 32 from the film dispenser 30.
  • one side of the center-folded film 32 from the film dispenser 30 passes under the in-feed conveyor to the lower inverting head 42B and one side of the film passes over the in- feed conveyor to the upper inverting head 42A.
  • the in- feed conveyor pulls the package through the inverter a top layer of film covers the packages.
  • the bottom layer of film is threaded from under the in-feed conveyor to the top of the side seal conveyor 60.
  • each package emerges from the film inverting assembly 40, and crosses to the side seal conveyor 60 there is a layer of film over the top of the package and a layer between the bottom of each package and the side seal conveyor.
  • the film On the side of each package facing the film inverter or opposite the side sealer 50, the film is unbroken around the package.
  • the free edges of the upper and lower layers of center-folded fihn rest on top of each other.
  • the wrapping machine 10 of the present invention uses center-folded film 32 from the roll of film 34 supplied by the powered film unwind or dispenser 30.
  • a powered film unwind system is used where a slight tension on the film web 32 raises a dancer roller 314 which in turn activates and rotates a potentiometer 318, which drives a motor 316, which drives a drive roller 304, which turns the roll of film in a direction to provide film to the machine.
  • the film roll is supported by rollers 38 and 302.
  • the drive roller 304 is also paired with a pinch roller 306, which in combination unwind film from the film roll.
  • the film Prior to feeding the film into the inverter 40, the film passes a fixed guide roller 320 and travels upwardly to an adjustable guide roller 313. The film subsequently travels downwardly around the dancer roller 314 and upwardly to a fixed guide roller 312. Just prior to being fed into the film inverter 40 the center folded fihn is separated by a separating bar 315.
  • the drive motor of the present embodiment of the film dispenser is electrically coupled to the system controls 90, thus film dispenser speed may be automatically controlled depending upon the machines desired rate of operation.
  • the film dispenser has been described above. However, it should be noted that several powered film unwind systems are known in the art, and the machine 10 of the present invention is designed to be compatible with existing systems. Further, the film 32 referred to throughout this specification is. generically termed “polymer” film. It is to be understood that the term “polymer” refers to any heat sealable plastic or thermo-plastic or similar fihn.. All such heat sealable films are suitable for use with the wrapping machine of the present invention.
  • the side sealer 50 and the side seal conveyer 60 are shown in relation to the other sub assemblies of the packaging machine.
  • the side sealer maybe adjusted vertically with respect to the side seal conveyor by means of adjustment screw 52.
  • Vertical adjustment of the side sealer is desirable in that it is preferred for esthetic reasons that the sealed seam of film on the side of each package be made at approximately the center of the side of the package.
  • vertical adjustment is accomplished by mounting the side sealer on a base plate (not shown) and moving the sealer by means of a lead screw (not shown). Other methods of vertical adjustment such as ball bearing screws are known in the art.
  • the side sealer and the side seal conveyor are, as a unit, laterally movable to accommodate packages of varying widths. Such lateral movement maybe accomplished by rotating the lateral positioning screw 54.
  • the side sealer and conveyor unit are mounted on a linear positioning slide (not shown). Many types of linear positioning slides are suitable and known in the art.
  • the side seal assembly 50 includes a plurality of shaft mounted front and rear, and inboard and outboard pinch rollers 502A-508B, inboard and outboard pinch belts 512 A and 510 A respectively, inboard and outboard fixed lower runners 58 A and 58B (best seen in the partial cutaway portion of FIG. 9), inboard and outboard floating upper runners 56A and 56B (best seen in the partial cutaway portion of FIG. 9), upper runner biasing arms 514 and biasing springs 516, and a side sealing jaw assembly 517.
  • the sealing jaw assembly comprises a sealing jaw 518, an electrically heated tapered hot wire 520, and an electrically heated hot post 522.
  • the hot wire 520 andhotpost 522 are shown in more detail.
  • the hot wire is formed with a slope angle ⁇ .
  • the slope angle effects the dwell time required to melt the polymer film, h the exemplary embodiment, the hot post is formed as an integral portion of the hot wire.
  • the side sealer operates as follows. Power from the packaging machine's drive system is supplied to the pinch roller 502B which also functions as a drive roller. By means of a belt and pulley system to be explained later, all four of the pinch rollers are driven at the speed of the side seal conveyer.
  • the film to be sealed 32 enters the side sealer at the front pinch rollers following the direction of film flow as indicated by arrow 22. The film is squeezed between the upper and lower pinch belts corresponding to the inboard and outboard pinch rollers respectively and is subsequently drawn through the side sealer by the these belts.
  • the lower runners 58 are fixed runners within which the pinch belts travel in a guide channel 532.
  • the guide channel is incorporated into each of the lower and upper runners.
  • the upper runners 56 are movable or floating runners which are biased against the pinch belts by means of the biasing arms 514 and biasing springs 516 (FIG. 6).
  • the pinch belts are biased against the film 32 with sufficient force to prevent slippage or lateral or sideways movement of the film relative to the belts.
  • Disposed between the inboard and outboard runners is the side sealing jaw assembly 517.
  • a seal is formed as the layers pass over the tapered hot wire 520 of the sealing jaw assembly 517.
  • the hot wire forms the seal by essentially melting or welding the layers of polymer film together.
  • the "dwell time" or time required for the polymer film to be in contact with the tapered hot wire is primarily a function of the thickness of the film, the thermal conductivity of the film, and the slope angle of the hot wire.
  • the required dwell time for any particular film thickness and composition may be adjusted by: 1) varying the temperature of the tapered hot wire; varying the slope angle of the hot wire; and 3) adjusting the speed of side seal conveyor.
  • the hot post cutoff serves to sever the selvage 38 (FIG. 5) at the line of the seal.
  • the term "selvage” refers to that portion of film extending beyond the seal line, i.e., scrap film.
  • the selvage is wound onto the take-up wheel 302 (FIG. 1) as the packages, now enclosed in a tube of film 36 (FIG. 6), leave the side sealer.
  • a take-up wheel is shown for removing selvage, however, other means are known in the art and can be used.
  • the sealing jaw 518 further includes a radius or semicircular portion 523 over which the tapered hot wire 520 forms a radius portion 521.
  • the film absorbs heat from the tapered hot wire and is thus preheated and softened prior to actually making contact with the hot wire. Preheating of the film also reduces drag on the tapered hot wire and results in a better seal than would otherwise be obtainable.
  • the rear pinch rollers comprise, upper inboard and outboard rollers 502A and 504A respectively, and lower inboard and outboard rollers 502B and 504B respectively.
  • the upper and lower rear rollers are vertically in-line and have a predetermined spacing 524 between the inboard and outboard rollers.
  • the front pinch rollers comprise, upper inboard and outboard rollers 506A and 508A respectively, and lower inboard and outboard rollers 506B and 508B respectively. Like the rear pinch rollers, the upper and lower front pinch rollers are vertically inline.
  • the inboard and outboard front pinch rollers are longitudinally spaced or offset by a predetermined distance 528.
  • the inboard and outboard front pinch rollers are also laterally spaced a predetermined distance 526. It is particularly important to note that the lateral spacing 524 of the rear pinch rollers is greater than the lateral spacing 526 of the front pinch rollers.
  • the front 502A-504B and the rear 506A-508B pinch rollers are coupled by upper and lower and inboard and outboard film pinch belts 512A-B and 510A-B respectively, i.e., the upper inboard belt 512A and the lower inboard belt 512B form one set of matched pinch belts and upper outboard belt 510A and the lower outboard belt 510B form a second set of matched belts.
  • the outboard set of belts 510A-B is angled away from the inboard set of belts 512A-B by a predetermined angle 530.
  • the offset of the inboard and outboard front pinch rollers and the angled outboard pinch belts provides one of the unique operational advantages of the packaging machine 10 of the present invention.
  • lateral tension is developed in the film. This lateral tension increases as the fihn enters the inboard front pinch rollers. Once the film has entered the pinch rollers, it is forced to follow the path of the pinch belts. As explained above, due to the pressure maintained on the pinch belts, the film is unable to slip laterally or sideways .
  • the side seal conveyer 60 is similar in design to the in- feed conveyor 20 and includes an endless belt 64, and a conveyor plate 66. Disposed off-center from the conveyor plate is a drive roller 62. Disposed at each end of the conveyor plate is a rounded nosepiece 68. Like the in-feed conveyor, the rounded nosepiece is used in place of a more conventional idler roller for simplicity.
  • the side seal conveyor utilizes two idler or tension rollers 602.
  • the side seal conveyor drive roller 62 also drives the side sealer 50, thus the side seal drive roller experiences higher load and correspondingly increased drag than that of the in-feed conveyor drive roller. For this reason, a pair of idler rollers is preferred in the side seal conveyor in order maintain appropriate tension in the conveyor belt.
  • the side sealer 50 is driven by the power transmission system 100 of the packaging machine 10, as follows.
  • a main drive motor 102 applies power to a pulley 104, which in turn drives a pulley 114, by means of a main drive belt 106.
  • the main drive belt is equipped with an idler pulley 108 to eliminate slack.
  • the pulley 114 is mounted on a power transfer shaft 110.
  • the power transfer shaft drives a pulley 116 which is mounted to and drives the side seal conveyor drive roller 62, via a pulley 120 connected to the drive roller 62 and a belt 123 which couples pulley 116 to pulley 120.
  • the side seal conveyor drive roller rotates the side seal endless conveyor belt 64.
  • the side seal conveyor drive roller 62 further includes a power- take-off (“PTO") pulley 122.
  • PTO pulley 122 is connected to the main side seal drive pulley 530 via a drive belt 121.
  • the drive pulley 530 is mounted on a common shaft with the lower inboard and outboard rear pinch rollers 502B and 504B respectively, as well as with a lower side gear 534.
  • Lower side gear 534 is meshed with upper side gear 532 which itself is on a common shaft with the upper rear inboard and outboard pinch rollers 502A and 504A respectively.
  • the rear pinch rollers in turn drive the front pinch rollers 506A-508B (FIG. 8) by means of the upper and lower inboard and outboard belt sets 510A-B and 512A-B respectively.
  • Driving of the front rollers causes the film to be sealed 32 (FIGS. 5) to be drawn through the side sealer and whereby the film is sealed and the selvage is trimmed leaving the packages in a sealed tube of film 36, as shown in FIG. 5
  • the traveling end seal mechanism 70 is shown in relation to the other subassemblies of the machine 10. As shown, the end seal mechanism comprises a conveyor assembly 80, a carriage assembly 90 and a cross seal assembly 72.
  • the end seal assembly further comprises a housing 74, which contains an upper horizontal shaft 76, a lower horizontal shaft 78, an inboard vertical slide shaft 704 and an outboard vertical slide shaft 702. Mounted between and attached to the vertical slide shafts are an upper cross bar 712 and a lower cross bar 714.
  • the upper and lower cross bars include a linear bearing 710 attached to each end of the bars.
  • the upper and lower cross bars are essentially the same, with the lower cross bar being rotated 180 degrees with respect to the upper bar.
  • the linear bearings 710 slidably couple the upper and lower cross bars to the vertical slide shafts.
  • the upper and lower horizontal shafts are equipped with a side gear 724 at each end of each shaft.
  • actuating chains 706 are actuating chains 706.
  • a single inboard chain 706 couples the horizontal shafts at their inboard ends
  • a single outboard chain 726 couples the horizontal shafts at their outboard ends.
  • the cross bar is coupled to the front of the inboard actuating chain by means of a tie-plate 708 and is coupled to the front of the outboard actuating chain by another tie-plate 708.
  • the upper cross bar is not coupled to the rear of the of the actuating chains.
  • the lower cross bar is also coupled to the actuating chains by tie-plates 708.
  • the lower cross bar is coupled to the rear of the actuating chains and also unlike the upper cross bar, the lower cross bar is not coupled to the front of the chains.
  • the means of coupling the upper and lower cross bars to the chains via tie-plates is identical, what is different is that the upper cross bar is only coupled to the front of the chains and lower cross bar is only coupled to the rear of the chains.
  • tie-plates 708 to couple the cross bars to the actuating chains provides for the ability to adjust the opening between the upper and lower cross bars to accommodate packages of various heights. To change the spacing or opening between the cross bars, an operator need only remove the tie-plates and adjust the cross bars to the desired vertical spacing and then reattach the tie-plates.
  • the upper cross bar 712 also includes a seal bar 716 which is attached to the upper cross bar via spring loaded guide pins 720.
  • the seal bar includes a hot wire (not shown) for making a cross seal 39, as shown in FIG. 6.
  • the lower cross bar 714 includes a seal base 718, which is attached to the lower cross bar by means of the spring loaded guide pins 720.
  • the spring loaded seal bar 716 and hot wire and the spring loaded seal base create uniform pressure on the polymer film to be sealed when the seal bar and seal base are brought together during the action of the cross seal assembly.
  • the upper and lower cross bars are described as being attached to the sealing bar and the seal base respectively by means of spring loaded connections, this method of attachment is meant to be exemplary only.
  • the cross sealer will operate effectively with rigid attachments between the upper and lower cross bars and the sealing bar and seal base respectively, and in some situations rigid attachments may be preferred.
  • the driving force for the end seal assembly is provided by a rotary or pneumatic air , cylinder 722.
  • the lower horizontal shaft 78 is an integral component of the rotary air cylinder 722.
  • the rotary air cylinder is capable of both clockwise and counterclockwise rotation.
  • the rotary air cylinder is actuated in a clockwise direction in response to a first electrical signal generated by a photocell 154 (FIG. 1).
  • An energizing electrical signal is produced by the photocell when a light beam from a light source 155 (FIG. 1) is interrupted by a package moving along the end seal conveyor.
  • the carriage assembly 90 of the traveling end sealer 70, comprises an upper housing 92 and a lower housing 94.
  • the upper housing comprises a base plate 912 and inboard and outboard side plates 914 and 916 respectively. Included within the upper housing are front and rear lower conveyor belt rollers
  • the upper housing further includes an upper cross member 910 which provides lateral rigidity to the side plates of the upper housing. Attached to the upper housing is a lower housing 94. Enclosed within the lower housing is linear slide carriage 920, which in combination with a slide ram 918 forms a complete linear slide bearing assembly 96. The ends of the slide ram are fixed to the support structure (not shown) of the high speed wrapping machine 10.
  • the lower housing also includes a fitting 98 for attachment of a first pushrod 126. In operation the mated carriage and cross seal assemblies reciprocate back and forth over the ram 918 of the linear bearing 96 via reciprocating force applied by the first pushrod 126 to the linear bearing carriage 920.
  • the lower housing serves to provide a connection between the linear bearing carriage 920 and the upper housing 92 of the carriage assembly 90.
  • the lower housing also provides a connection point for the first pushrod 126.
  • the lower housing may take many forms and may be dispensed with entirely as the provisions for connection to the carriage assembly 90 and for attachment to the first pushrod 126 may be incorporated directly into the linear bearing carriage 920.
  • end sealer 72 in many situations it is desirable to be able to adjust the height of end sealer 72 such that the cross or end seals are approximately centered with respect to the ends of the packages. To accomplish such adjustment, it is necessary to be able to raise or lower the end sealer with respect to the center line of the packages, hi the packaging machine of the present invention 10, this is accomplished by indexably mating the end sealer to the carriage assembly 90 as follows.
  • the carriage assembly is mated to the end seal assembly by means of holes 915 in the carriage assembly side plates 914 and 916, which index with matching holes 715 in the housing 74 of the end seal assembly.
  • the means of attachment may be bolts, ball-lock pins, or any other suitable fasteners. If more precise height adjustments are required, those skilled in the art will realize that the indexing method described above may be replaced with simple lead screws, ball screws, or any other suitable linear positioning device.
  • sealing bar 716 and the sealing base 718 may be eliminated and the hot wire, or a hot knife, maybe incorporated directly in either one of the crossbars 712 and 714.
  • end seal assembly 72 and the carriage assembly 90 may be constructed as a single unit. This may be readily accomplished by incorporating the features of the carriage assembly directly into the end seal assembly housing or frame 74.
  • the sealing bars have been described as closing during clockwise rotation of the rotary air cylinder 722 and as opening during counter-clockwise rotation of the rotary air cylinder.
  • the traveling end seal conveyor 80 includes a conveyor belt 81, which begins at a drive roller 84 and follows the direction of belt travel shown by arrow 804.
  • the belt path is as follows. From the drive roller 84, the belt travels upwards past a tension roller 802 to an idler roller 82.
  • the belt travels in a flat plane, coplaner with the side seal conveyor 60, to the idler roller 906 mounted on the carriage assembly 90.
  • the belt proceeds to drop downwards and then upwards to form a U-shape around the cross sealer 72 following the idler rollers on the carriage assembly, which are 902, 904, and 908 respectively.
  • the belt is flat and coplaner with the side seal and the in-feed conveyors, 60 and 20, of the packaging, machine 10.
  • the packages may optionally be passed into a heat shrinking tunnel or other machine if desired. From the idler roller 88 the path of the belt continues back to the drive roller via another idler roller 86.
  • idler rollers 902, 906, 904, and 908 are mounted on the carriage assembly 90, the "U" formed by the belt will reciprocate back and forth traveling with the carriage assembly 90. Further, because the aforementioned idler rollers are positioned on the carriage assembly, there is no possibility of the conveyor belt interfering with the operation of the cross sealer 72, which is also fixed to the carriage assembly. Referring now to FIG.2, the drive system for the conveyor belt of the traveling end sealer
  • the main drive motor 102 applies power to the pulley 104, which in turn drives the pulley 114, by means of the main drive belt 106.
  • the main drive belt is equipped with the idler pulley 108 to eliminate slack.
  • the pulley 114 is mounted on the power transfer shaft 110.
  • the power transfer shaft drives a PTO pulley 112 which in turn drives the traveling end sealer conveyor belt drive roller 84 via a pulley 128 and belt 130.
  • the pulley 128 is mounted on the shaft of the drive roller 84.
  • Belt 130 is tensioned by a tension pulley 132.
  • the drive motor 102 of the power transmission system 100 operates continuously to drive the side sealer 50 and the side seal and traveling end seal conveyor systems 60 and 80 as explained previously.
  • the same motor 102 is also used to provide forward motion of the carriage assembly.
  • the motor 102 drives a pulley 132, which in turn drives a pulley 156, and a belt 134. Tension is maintained in the belt 134 via a tension pulley 136.
  • the pulley 156 is on a common shaft with a variable input pulley 160 which in combination with a mating output pulley 162, and belt coupling the pulleys, forms part of a continuously variable transmission 138.
  • the reduction ratio of the continuously variable transmission is controlled by a lever 158.
  • the continuously variable transmission allows an operator to selectively control the output pulley speed. Therefore, the speed of the carriage assembly may be synchronized with the conveyor systems.
  • Continuously variable transmissions utilizing variable pulleys are known to those skilled in transmission design. Variable pulleys of the type used to make the continuously variable transmission incorporated in the film wrapping machine of the present invention are available from Speed Selector Corporation.
  • Power from the output pulley 162 of the continuously variable transmission 138 is used to drive the input pulley 160 of an electro-magnetic clutch 142. All components of the carriage drive up to the input pulley 160 of the electro-magnetic clutch are continuously driven via the drive motor 102. All drive system components subsequent to the clutch experience intermittent operation.
  • An electro-magnetic or partial revolution clutch is a type of clutch that will make a single or partial revolution upon being energized and will automatically de-energize after the single or partial revolution is complete.
  • the partial revolution clutch 142 used in the present invention revolves about 110 degrees before being de-energized by the second electrical signal triggered by the limit switch 152. Such clutches are available commercially. Borg- Warner Corporation of is one such source.
  • the partial revolution clutch 142 is energized to make a mechanical connection between the input pulley of the clutch 160 and a corresponding output pulley 164 in response to the first electrical signal from the photocell 154.
  • an energizing electrical signal is produced by the photocell when the light beam from the light source 155 is interrupted by a package moving along the end seal conveyor. Once a package breaks the light beam, an electrical signal from the photocell energizes the clutch. (It should be noted that the photocell simultaneously energizes the clutch and the rotary air cylinder 722 (FIG. 11)). The clutch subsequently rotates 110 degrees counter clockwise therebyrotating a bell crank 148, viaapulley 146 and the output pulley 164, which are coupled by a drive belt 166. The drive belt 166 is tensioned by a tension pulley 168.
  • Counterclockwise rotation of the partial revolution clutch produces counter clockwise rotation of the bell crank 148, which in turn pushes the first pushrod 126 forward, causing the traveling end sealer 70 to move forward.
  • the bell crank 148 and the pulley 146 are mounted on a shaft 144, which further includes a cam 150. Rotation of the shaft 144 in response to rotation of the partial revolution clutch causes the cam to rotate and actuate the limit switch 152. Once the limit switch is actuated it produces the second electrical signal which activates a linear or pneumatic air cylinder 170 which retracts the bell crank via a second pushrod 172. Retraction of the bell crank in turn causes the traveling end sealer 70 to be retracted or pulled backwards to its original position. The second electrical signal produced by the limit switch simultaneously de-energizes the partial revolution clutch. The clutch remains de-energized until a subsequent package triggers the photocell 154.
  • the cross bars 712 and 714 of the cross seal mechanism 72 are caused to close and open in synchronism with the reciprocating longitudinal motion of the carriage assembly 90. This process occurs as follows. Once a package breaks the light beam to the photocell 154, the first electrical signal actuates the rotary air cylinder 722 in a clockwise direction causing the sealing bars to close on the film to be sealed. Simultaneously, the first electrical signal from the photocell causes the partial revolution clutch 142 to actuate, which thereby drives the carriage assembly 90 forward.
  • the rotary air cylinder is actuated in the counterclockwise direction thereby causing the cross seal bars to open, releasing the now sealed and severed film, and the linear air cylinder is caused to retract thereby moving the carriage assembly back to its initial starting or rest position. This cycle of operation is repeated each time a package breaks the light beam of the photocell.
  • a photocell has been used to trigger the operation of the cross sealer and carriage assembly in the exemplary embodiment because it has been found that this form of control is most convenient when packages are to be wrapped which change in length from run to run.
  • limit switches or other types of mechanical and electro-mechanical switches may also be used.
  • the end sealer may be linked to the main drive of the machine and synchronized with the inflow of video cassettes to the machine without requiring photocell initiation of the end sealer.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Fluid Mechanics (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Package Closures (AREA)

Abstract

L'invention porte sur une machine d'emballage automatique à grande vitesse (10) servant à envelopper des paquets (P) dans un film polymère (32). Le scellement du film sur les côtés et les extrémités des paquets (P) est effectué à une vitesse élevée, tandis que ces derniers (P) se déplacent à travers la machine (10). Ces paquets (P) se déplacent en continu en suivant une ligne droite à travers la machine (10). Ils sont délivrés au niveau de l'extrémité d'entrée de la machine (10) par un convoyeur d'alimentation (20), dans une tête inverseuse de film (40) où ils sont enveloppés d'un film polymère (32) à moitié plié dans le sens de la longueur. Après cela, les paquets (P) sont acheminés vers un mécanisme de scellement latéral (70), lequel pratique un scellement longitudinal du film (32), sur le côté opposé au côté plié. Les paquets (P) sont finalement acheminés vers un mécanisme de scellement d'extrémité (70) mobile, où un scellement latéral est effectué au niveau de chaque extrémité de l'emballage (P) et la bande de film (32) reliant les paquets (P) successifs est sectionnée. Cette machine (10) fournit des paquets (P) pourvus d'une bande de film scellé enveloppant la totalité du paquet (P). Le cas échéant, le film polymère (32) peut consister en un matériau thermorétractable et le paquet scellé (P) peut être soumis à une opération de rétraction qui en fera un paquet (P) présentant un film protecteur très resserré autour de lui.
PCT/US2001/049599 2000-12-28 2001-12-28 Machine d'emballage automatique a grande vitesse WO2002053457A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/465,989 US6962033B2 (en) 2000-12-28 2001-12-28 Automatic high speed wrapping machine
AU2002239674A AU2002239674A1 (en) 2000-12-28 2001-12-28 Automatic high speed wrapping machine

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US75278400A 2000-12-28 2000-12-28
US09/752,784 2000-12-28
US96083901A 2001-09-21 2001-09-21
US09/960,839 2001-09-21
US6136801A 2001-10-19 2001-10-19
US10/061,368 2001-10-19

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003074365A1 (fr) * 2002-02-28 2003-09-12 Paper Converting Machine Company Dispositif de scellage a mouvement continu pour machine a emballer
DE10311879B3 (de) * 2003-03-17 2004-10-21 Hugo Beck Gmbh & Co. Kg Schlauchbeutelverpackungsmaschine
ITUB20152063A1 (it) * 2015-07-10 2017-01-10 Cps Company S R L Macchina avvolgitrice di prodotti singoli o raggruppati e/od impilati, in confezioni di materia termoplastica ricavate da film svolto da bobina e relativo procedimento di lavoro
CN109878782A (zh) * 2019-03-29 2019-06-14 深圳市永创自动化设备有限公司 一种中封式塑封机
CN112373192A (zh) * 2020-11-24 2021-02-19 浙江大华技术股份有限公司 膜纸覆合的方法、装置、电子设备及存储介质
CN112604988A (zh) * 2020-12-18 2021-04-06 华南理工大学广州学院 一种基于机器视觉的工件分拣系统
WO2021074194A1 (fr) * 2019-10-14 2021-04-22 Cryovac, Llc Appareil et procédé d'emballage
CN113353386A (zh) * 2021-05-11 2021-09-07 湖北龙狮节能环保特种电缆有限公司 双层环保阻燃电缆线卷水平自动覆膜包装系统及方法
CN114435693A (zh) * 2022-02-23 2022-05-06 上海承企机械有限公司 一种新型往复式高速封切包装机
CN116565288A (zh) * 2023-07-10 2023-08-08 扬州棒杰新能源科技有限公司 一种电池成型封装装置
CN117465752A (zh) * 2023-12-27 2024-01-30 吉林金钢钢铁股份有限公司 一种螺纹钢打包用设备及打包方法
RU2815178C1 (ru) * 2019-10-14 2024-03-12 Криовак, Ллк Упаковочное устройство и способ
CN117864485A (zh) * 2024-03-12 2024-04-12 佳木斯大学 一种牙科影像胶片包装生产装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4219988A (en) * 1977-10-11 1980-09-02 Shanklin Corporation Automatic high-speed wrapping machine
US5444964A (en) * 1993-06-22 1995-08-29 Hanagata Corporation Automatic package machine, and wrapping film fusing and sealing blade
US5603801A (en) * 1993-04-30 1997-02-18 Defriese; John M. Infinite universal sealing assembly
US5956931A (en) * 1996-11-13 1999-09-28 Stork Fabricators, Inc. Apparatus for wrapping products

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4219988A (en) * 1977-10-11 1980-09-02 Shanklin Corporation Automatic high-speed wrapping machine
US5603801A (en) * 1993-04-30 1997-02-18 Defriese; John M. Infinite universal sealing assembly
US5444964A (en) * 1993-06-22 1995-08-29 Hanagata Corporation Automatic package machine, and wrapping film fusing and sealing blade
US5956931A (en) * 1996-11-13 1999-09-28 Stork Fabricators, Inc. Apparatus for wrapping products

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003074365A1 (fr) * 2002-02-28 2003-09-12 Paper Converting Machine Company Dispositif de scellage a mouvement continu pour machine a emballer
DE10311879B3 (de) * 2003-03-17 2004-10-21 Hugo Beck Gmbh & Co. Kg Schlauchbeutelverpackungsmaschine
ITUB20152063A1 (it) * 2015-07-10 2017-01-10 Cps Company S R L Macchina avvolgitrice di prodotti singoli o raggruppati e/od impilati, in confezioni di materia termoplastica ricavate da film svolto da bobina e relativo procedimento di lavoro
WO2017009737A1 (fr) * 2015-07-10 2017-01-19 Cps Company S.R.L. Machine d'emballage pour un produit unique ou des produits groupés et/ou empilés, dans des paquets de matériau thermoplastique obtenu à partir d'un film déroulé à partir d'un rouleau et procédé de fonctionnement associé
CN109878782A (zh) * 2019-03-29 2019-06-14 深圳市永创自动化设备有限公司 一种中封式塑封机
CN109878782B (zh) * 2019-03-29 2024-02-23 深圳市永创自动化设备有限公司 一种中封式塑封机
EP4067244A1 (fr) * 2019-10-14 2022-10-05 Cryovac, LLC Appareil d'emballage; thermoscelleuse et module de thermoscelleuse
US12129063B2 (en) 2019-10-14 2024-10-29 Cryovac, Llc Packaging apparatus and process
WO2021074194A1 (fr) * 2019-10-14 2021-04-22 Cryovac, Llc Appareil et procédé d'emballage
RU2815178C1 (ru) * 2019-10-14 2024-03-12 Криовак, Ллк Упаковочное устройство и способ
CN114555477A (zh) * 2019-10-14 2022-05-27 克里奥瓦克公司 包装装置和工艺
CN112373192A (zh) * 2020-11-24 2021-02-19 浙江大华技术股份有限公司 膜纸覆合的方法、装置、电子设备及存储介质
WO2022111431A1 (fr) * 2020-11-24 2022-06-02 Zhejiang Dahua Technology Co., Ltd. Procédés et dispositifs de stratification
CN112604988A (zh) * 2020-12-18 2021-04-06 华南理工大学广州学院 一种基于机器视觉的工件分拣系统
CN113353386A (zh) * 2021-05-11 2021-09-07 湖北龙狮节能环保特种电缆有限公司 双层环保阻燃电缆线卷水平自动覆膜包装系统及方法
CN114435693A (zh) * 2022-02-23 2022-05-06 上海承企机械有限公司 一种新型往复式高速封切包装机
CN116565288A (zh) * 2023-07-10 2023-08-08 扬州棒杰新能源科技有限公司 一种电池成型封装装置
CN116565288B (zh) * 2023-07-10 2023-09-05 扬州棒杰新能源科技有限公司 一种电池成型封装装置
CN117465752A (zh) * 2023-12-27 2024-01-30 吉林金钢钢铁股份有限公司 一种螺纹钢打包用设备及打包方法
CN117465752B (zh) * 2023-12-27 2024-04-09 吉林金钢钢铁股份有限公司 一种螺纹钢打包用设备及打包方法
CN117864485A (zh) * 2024-03-12 2024-04-12 佳木斯大学 一种牙科影像胶片包装生产装置
CN117864485B (zh) * 2024-03-12 2024-05-14 佳木斯大学 一种牙科影像胶片包装生产装置

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