LU83326A1 - Appareil destine a fermer des sacs en matiere thermosoudable - Google Patents

Appareil destine a fermer des sacs en matiere thermosoudable Download PDF

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Publication number
LU83326A1
LU83326A1 LU83326A LU83326A LU83326A1 LU 83326 A1 LU83326 A1 LU 83326A1 LU 83326 A LU83326 A LU 83326A LU 83326 A LU83326 A LU 83326A LU 83326 A1 LU83326 A1 LU 83326A1
Authority
LU
Luxembourg
Prior art keywords
bag
welding head
drive
bags
projection
Prior art date
Application number
LU83326A
Other languages
English (en)
Original Assignee
Rodric Norman
Norman Jeanne Josee
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 Rodric Norman, Norman Jeanne Josee filed Critical Rodric Norman
Priority to LU83326A priority Critical patent/LU83326A1/fr
Priority to DE19828211985U priority patent/DE8211985U1/de
Priority to BE0/207933A priority patent/BE892984A/fr
Priority to US06/372,444 priority patent/US4537585A/en
Priority to GB08212196A priority patent/GB2105646B/en
Priority to CA000401833A priority patent/CA1207648A/fr
Priority to FR8207306A priority patent/FR2504495B1/fr
Priority to IN916/DEL/82A priority patent/IN158964B/en
Publication of LU83326A1 publication Critical patent/LU83326A1/fr
Priority to IN229/DEL/86A priority patent/IN163470B/en

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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • 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
    • B29C66/004—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
    • B29C66/00441—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 movable, e.g. mounted on reels
    • 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
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0222—Mechanical pre-treatments, e.g. reshaping without removal of material, e.g. cleaning by air blowing or using brushes
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • 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
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • 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
    • B29C66/7373—Joining soiled or oxidised materials
    • 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
    • B29C66/739—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 material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • 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
    • 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
    • B29C66/8145—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B29C66/81465—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed behind the other in a single row in the feed direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167—Quick change joining tools or surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C66/818—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • 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
    • B29C66/83423—Roller, cylinder or drum types; Band or belt types; Ball types band or belt types cooperating bands or belts
    • 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
    • B29C66/841—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
    • B29C66/8412—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different length, width or height
    • B29C66/84123—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different length, width or height of different height
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/18—Applying or generating heat or pressure or combinations thereof by endless bands or chains
    • 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
    • B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/24—Cleaning of, or removing dust from, containers, wrappers, or packaging ; Preventing of fouling
    • 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
    • B65B59/003—Arrangements to enable adjustments related to the packaging material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/04—Machines constructed with readily-detachable units or assemblies, e.g. to facilitate maintenance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B29C65/7847—Holding or clamping means for handling purposes using vacuum to hold at least one of the parts to be joined
    • 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
    • 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
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
    • B29C66/02241—Cutting, e.g. by using waterjets, or sawing
    • 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
    • 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
    • B29C66/812—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/005—Making flexible containers, e.g. envelopes or bags involving a particular layout of the machinery or relative arrangement of its subunits

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Package Closures (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Making Paper Articles (AREA)

Description

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. « f La présente invention a pour objet un ! appareil destiné à fermer des sacs en matière thermc- soudable et a pour but de permettre par une interchangeabilité aisée et rapide et avec un minimum d’accessoires 5 une adaptation de l'appareillage à des travaux de ; soudure très différents compte tenu de la nature et de ä| l’épaisseur des sacs à souder.
Il - Les différentes caractéristiques seront fi décrites ci-après et ensuite résumées, en se référant 10 aux dessins ci-annexés dans lesquels : la figure 1 est une vue en élévation de l'ensemble de l'appareil ; | la figure 2 est une vue en plan d'une l „ tête de soudure ; ; 15 la figure 3 est une vue en perspective . * d'un élément de chauffe ; ; i j* les figures 4, 5A et 5B sont des vues || montrant les possibilités de modifier la forme de || l'élément de chauffe d'après l'application ; )'l 1 20 la figure 6 est une vue en plan d'un dispositif d'entraînement adaptable à la tête de soudure ; la figure 7 est une vue en élévation d'un dispositif d'entraînement selon la figure 6 monté sur une tête de soudure ; 25 les figures 8 à 10 sont des vues montrant un détail du dispositif de dépoussiérage ; la figure 11 est une vue en perspective montrant un dispositif de dépoussiérage.
Sur la figure 1 on a représenté un appa-30 reil de soudure pour matières thermosoudables composé d'un pied ou socle 1 supportant un coffret de commande et de contrôle électrique 2.
Sur le fond du coffret 2 sont fixées des ÿ glissières 3 dans lesquelles sont introduites des V 35 traverses 4 portant la tête de soudure 5.
* Ί i ' η
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Cette tête de soudure 5 comporte plusieurs éléments tels que des éléments de chauffage 10, des éléments de refroidissement 11, des roulettes de compression 12, de codage, etc. selon l’utilisation.
5 En général la tête de soudure est égale- ment munie de deux bandes métalliques 15 recouvertes d’un revêtement anti-adhérent (Teflon), tournant en sens opposés l’une par rapport à l’autre, guidées par des roulettes 14 et entraînées par des axes 16, 17 10 d’engrenages 6 et 7.
Il importe de pouvoir, pour chaque application différente, de remplacer facilement la tête de soudure par une autre convenant au travail désiré.
; * Conformément à l'invention, chaque tête 15 de soudure 5 est réalisée de telle manière que lors- x qu'elle est introduite dans l’appareil, ses propres organes d'entraînement tels que les engrenages 6 et 7, 1 coopèrent avec un seul moyen d'entraînement par exemple ! un pignon 8 solidaire d’un axe 18 sortant du fond du i ; 20 coffret 2 de l'appareil (voir figure 2).
j
Cet axe 18 peut être commandé à l'inté rieur du coffret 1 par un moteur électrique, de préférence à courant continu muni d'un régulateur de vitesse, par l'intermédiaire d'organes de transmission ; 25 connus en soi, par exemple un réducteur de vitesse : avec renvoi d'angle, un jeu d'engrenages ou courroie ' ^ dentée.
Chaque tête de soudure 5 est également prévue pour y adapter un dispositif d'entraînement 20 30 des sacs à souder 21.
Un tel dispositif d'entraînement est illustré aux figures 6 et 7 et comprend essentiellement deux courroies dentées 22 tournant en sens opposé. Ces courroies 22 sont entraînées d'une part par deux roues 35 23 reliées aux axes 16 et 17 de la tête de soudure 5 3 « ! « (figure 2) et sont maintenues d’autre part par deux roues de guidage 24. Les courroies 22 se déplacent autour de deux plaques de support 25 reliées à la tête de J soudure 5 par des orifices 26. Entre les plaques de i 5 support 25 sont disposés des éléments de pression 27 sj ' soumis à l’action de ressorts (non représentés).
S Une autre caractéristique est que chaque
tête de soudure peut être munie d’éléments de chauffe | 10 à profil variable comme montré aux figures 5, 4, 5A
10 et 5B.
| L’élément de chauffe 10 est composé d’un i i J! corps 30 pourvu d’un alésage longitudinal 51 dans le- i ; quel vient se loger une carotte ou résistance chauf fante 32 (figures 4, 5A et 5B).
15 Une caractéristique de l’invention est que le corps 30 est muni d’une barre de soudure 33 amovible occupant une position dissymétrique par rapport au corps 30.
En outre le corps 50 est pourvu d’une 20 série de trous filetés 55 permettant l’adaptation de différents types de barrettes 5^ avec largeur variable (34, 36).
On obtient dès lors la possibilité d’effectuer des soudures parallèles (figure 5A) ou très ' , 25 larges (figure 5E.
; Sur la figure 4 on peut voir deux élé- ’ - ments de chauffe 10 pendant l’operation de soudure.
Ii
Les deux feuilles en matière thermoplasti- ’ que du sac 21 sont comprimées entre les bandes métal- 30 liques 13 (recouvertes de teflonj. A l'endroit des' barres de soudure 55, la bande 13 transmet la chaleur à la feuille de matière plastique qui se ramollit et A fond partiellement ensemble avec l’autre feuille du sac.
A l’endroit des barres 33, la bande subit 55 une usure locale. Grâce à la disposition dissymétrique des barres, on peut toutefois retourner la bande métal- 4 lique 13 dont la durée de vie sera donc ainsi doublée.
Sur les figures 8 à 10 est illustré un détail du dispositif de dépoussiérage.
5 Le coin supérieur du sac 21 â souder pénètre entre des guides 40 et vient buter contre une saillie 41 solidaire d'une traverse 42.
Ί Une particularité importante est que la i saillie 41 est uourvue, dans l'axe de déplacement des : 10 sacs, d'une entaille 43 laquelle maintient momentané- jj ment le coin supérieur du sac 21 lorsqu'il a buté = . contre la saillie 42 pendant son déplacement.
Comme montré à la figure 9, le sac est ' ainsi amené à s'ouvrir et continue son parcours grâce i P _ 15 à ce que ses deux bords supérieurs peuvent passer de i Λ part et d'autre de la saillie 41. A l'endroit de cette if | saillie 41, la traverse peut être munie d'une canalisa- jl tion 44 par laquelle de l'air sous pression est introït duit afin de souffler de l'air contre les bords inté- p 20 rieurs du sac et par conséquent enlever toute poussière || ou impureté avant l'opération de soudure.
Un autre dispositif de dépoussiérage est ; montré à la figure 11.
i Le sac 21 est amené par les courroies - 25 d'entraînement entre deux pièces de guidage 50 dont les flancs intérieurs 51 sont légèrement obliques de j; manière à créer un passage en forme d'entonnoir allongé.
,1 Les flancs obliques 51 sont pourvus j1 d'une série d'orifices 52 de sections différentes et ; 50 obturables selon la nature des sacs 21 à souder. Par des canalisations internes prévues dans la pièce de j; guidage 50 une légère dépression peut être créée à 1'en- I’ droit des orifices 52 de manière à aspirer chaque bord i supérieur du sac contre son guide respectif. On prévoit i ; 35 une tuyère amovible 53 qui une fois le sac 21 ouvert | peut descendre entre les lèvres du sac pour insuffler i: j; i ! 5 de l'air. En plus de son déplacement vertical la I t tuyère 53 peut également basculer suivant l'axe de déplacement du sac, ceci afin que la tuyère 53 se dé-\ gage lors du passage du côté arrière du sac 21.
i , 5 Ces dispositifs de dépoussiérage peuvent être avantageusement montés sur le dispositif d'entraînement tel que montré sur la figure 1. D'autres * accessoires par exemple un dispositif de coupe et de préchauffage peuvent également être montés sur le même 10 dispositif d'entraînement lequel peut ä son tour être Il fixé sur chaque tête de soudure disponible.
|j Ceci offre l'avantage énorme pour l'uti- !? lisateur de pouvoir adapter l'appareil à n'importe quel travail avec un minimum de pièces accessoires.
15 Bien entendu diverses modifications peu- | vent être apportées par l'homme de l'art au dispositif I ; qui vient d'être décrit uniquement à titre d'exemple \ non limitatif sans sortir du cadre de l'invention.
i il j
II
* ; fi ! d ' "j ' 4 1 I !

Claims (1)

  1. 6 RESUME Appareil destiné à fermer des sacs en matière thermosoudable comprenant une tête de soudure, cet appareil étant caractérisé par les points suivants 5 pris ensemble ou séparément : 1. afin de rendre la tête de soudure (5) interchangeable selon chaque application différente, chaque > tête est réalisée de telle manière que lorsqu'elle ; est introduite dans l'appareil, les organes d'en- 10 traînement qui lui sont propres (par exemple les ! engrenages) coopèrent avec un seul moyen d'entraîne ment, par exemple un pignon (8) solidaire d'un axe (18) sortant du fond du coffret (2) de l'appareil 2. chaque tête de soudure est réalisée de manière à 15 permettre 1'adautation d'un dispositif d'entraîne ment (20) des sacs à souder (21) 5. le dispositif d'entraînement des sacs a souder com-; prend deux courroies (221 tournant en sens onposés et entraînées par des roues (23) reliées aux axes ‘ 20 (16-17) de commande de la tête de soudure ; ces courroies (22) tournent autour de deux plaques de support (25) reliées à la tête de soudure (5) et entre lesquelles sont prévus des éléments de pression (27) j 7 25 4. chaque tête de soudure peut être munie d'éléments de chauffe (10) à profils variables 5. le corps de chauffage (30) est muni d'une barre de soudure amovible (33) placée en une position i dissymétrique par rapport au corps (30; 6. le corps (30) est muni de moyen? tels ces trous filetés (35) permettant l'adaptation de différents types de barrettes (34) de largeur variable 7. le dispositif d'entraînement (20) relié a la tête de soudure (5) peut comprendre un dispositn de 35 dépoussiérage formé de deux guides (40) pour le coin supérieur du sac et d’une saillie (41) solidaire d’une traverse (42) contre laquelle le sac vient buter ; cette saillie (41) est munie d'une entaille (43) qui maintient momentanément le coin 5 supérieur du sac lorsqu'il a buté contre la saillie .. (42) de telle manière que le sac est amené à s'ouvrir et ä continuer son parcours en passant avec ses bords supérieurs de part et d’autre de la saillie (41) à l'endroit de laquelle la traverse 10 peut être munie d'une canalisation d'insufflation (44) par laquelle est introduit de l'air sous pression destiné à exercer un effet de soufflage sur les bords intérieurs du sac et enlever les poussières ou impuretés avant l’opération de soudure 15 8. le dispositif de dépoussiérage peut aussi comprendre , * deux pièces de guidage (50) entre lesquelles le ; sac est amené par les courroies d'entraînement (22) et qui possèdent des flancs intérieurs (51) légèrement obliques en créant un passage en forme d’en-20 tonnoir et munis d’orifices (52) de sections différentes et obturables selon la nature des sacs à souder 9. à l’endroit des orifices (52) une légère dépression est exercée par des canalisations prévues a l’intérieur de la pièce de guidage (50) de manière à ’ 25 aspirer chaque bord supérieur du sac (21) contre son guide et à provoquer l’ouverture du sac 10. on prévoit une tuyère amovible (53) pomrant être descendue entre les lèvres du sac en vue d'insuffler de l'air 11. avec le dispositif de dépoussiérage monté sur le dispositif d’entraînement d’autres accessoires (par exemple dispositif de coupe et de prechauffage) peuvent également être montes sur le même dispositif d’entraînement lequel peut 2. son tour être fixe 35 sur chaque tête de soudure disponible. i
LU83326A 1981-04-28 1981-04-28 Appareil destine a fermer des sacs en matiere thermosoudable LU83326A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
LU83326A LU83326A1 (fr) 1981-04-28 1981-04-28 Appareil destine a fermer des sacs en matiere thermosoudable
DE19828211985U DE8211985U1 (de) 1981-04-28 1982-04-26 Schliessvorrichtung fuer beutel aus thermoplastischem material
BE0/207933A BE892984A (fr) 1981-04-28 1982-04-27 Appareil destine a fermer des sacs en matiere thermosoudable
US06/372,444 US4537585A (en) 1981-04-28 1982-04-27 Continuous heat sealer for sacks and bags in thermoplastic material
GB08212196A GB2105646B (en) 1981-04-28 1982-04-27 Continuous heat sealer for sacks and bags of thermoplastic material
CA000401833A CA1207648A (fr) 1981-04-28 1982-04-28 Dispositif de scellement thermique continu de sacs en matiere thermoplastique
FR8207306A FR2504495B1 (fr) 1981-04-28 1982-04-28 Appareil destine a fermer des sacs en matiere thermosoudable
IN916/DEL/82A IN158964B (fr) 1981-04-28 1982-12-15
IN229/DEL/86A IN163470B (fr) 1981-04-28 1986-03-12

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU83326 1981-04-28
LU83326A LU83326A1 (fr) 1981-04-28 1981-04-28 Appareil destine a fermer des sacs en matiere thermosoudable

Publications (1)

Publication Number Publication Date
LU83326A1 true LU83326A1 (fr) 1983-03-24

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LU83326A LU83326A1 (fr) 1981-04-28 1981-04-28 Appareil destine a fermer des sacs en matiere thermosoudable

Country Status (8)

Country Link
US (1) US4537585A (fr)
BE (1) BE892984A (fr)
CA (1) CA1207648A (fr)
DE (1) DE8211985U1 (fr)
FR (1) FR2504495B1 (fr)
GB (1) GB2105646B (fr)
IN (1) IN158964B (fr)
LU (1) LU83326A1 (fr)

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USD289054S (en) 1983-11-07 1987-03-31 The Thames Sack And Bag Company Limited Combined heat sealing machine and trimmer
US5672234A (en) * 1995-04-28 1997-09-30 Park-Air Corporation Zipper fusing machine for attaching zipper material to a plastic web
NL1008645C2 (nl) * 1998-03-19 1999-09-21 Dameta V O F Smeltlaswang voor het smeltlassen van een aantal lagen foliemateriaal, smeltlasinrichting voorzien van een smeltlasbek uit twee van dergelijke smeltlaswangen en verpakking afgesloten door de tussenkomst van een dergelijke smeltlasinrichting.
US20050070415A1 (en) * 2003-09-30 2005-03-31 Haasl Andrew L. Assembly for and method of preventing buildup of debris in a folding roll tucker assembly
DE102005034287A1 (de) * 2005-07-22 2007-01-25 Rovema Verpackungsmaschinen Gmbh Vorrichtung zum Verschweißen von thermoplastischem Kunststoff
DE102006021850A1 (de) * 2006-05-09 2007-11-15 Haver & Boecker Ohg Füllmaschine für offene, schweißbare Säcke
DE102009041411A1 (de) * 2009-09-16 2011-03-24 Lemo Maschinenbau Gmbh Verfahren und Vorrichtung zum Längsschweißen von Kunststofffolien
ES2400595B1 (es) * 2011-09-05 2014-03-27 Mespack, Sl Unidad de soldadura para máquina automática formadora y llenadora de envases
CN104071392B (zh) * 2014-06-27 2016-05-04 浙江民心生态科技股份有限公司 一种带有吹气冷却的封口机结构
CN114555477B (zh) * 2019-10-14 2024-10-01 克里奥瓦克公司 包装装置和工艺
CN110779313B (zh) * 2019-10-23 2020-12-11 东莞创必胜硅胶制品有限公司 一种环保的食品盒烘干加工系统
CN118529338B (zh) * 2024-07-25 2024-10-01 青岛新东益食品有限公司 一种包装机用的清洁装置

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GB736679A (en) * 1951-11-05 1955-09-14 Brockworth Building Company Lt An improved lifting device for use in building construction
US3142608A (en) * 1960-08-22 1964-07-28 Techtmann Ind Inc Bag and wrapper sealing and cutoff mechanism
US3131623A (en) * 1961-10-30 1964-05-05 Phillips Petroleum Co Method and apparatus for making thermoplastic film seams
DE1454959A1 (de) * 1964-03-28 1969-04-30 Basf Ag Verfahren und Vorrichtung zur Verschweissung von Kunststoffsaecken
GB1200302A (en) * 1966-10-25 1970-07-29 Comitex Ltd Improvements to heat sealing machines
FR1456942A (fr) * 1965-09-20 1966-07-08 Windmoeller & Hoelscher Procédé et dispositif pour réaliser des joints de soudure de fermeture sur des sacs en matière plastique déjà remplis
US3475257A (en) * 1966-12-05 1969-10-28 Riegel Paper Corp Heat sealing mechanism
DE1679944A1 (de) * 1967-09-14 1971-04-29 Basf Ag Verfahren und Vorrichtung zum Herstellen oder Verschliessen von Saecken durch Verschweissen
GB1466673A (en) * 1973-05-16 1977-03-09 Whitehall Machinery Ltd Heat-sealing superimposed layers of sheet material
CA1035333A (fr) * 1975-02-13 1978-07-25 John J. Grevich Fermeture en bande pour sacs
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DE2659202C2 (de) * 1976-12-28 1979-01-04 Windmoeller & Hoelscher, 4540 Lengerich Vorrichtung zum Herstellen von Sackketten

Also Published As

Publication number Publication date
IN158964B (fr) 1987-02-28
DE8211985U1 (de) 1982-08-05
GB2105646A (en) 1983-03-30
US4537585A (en) 1985-08-27
CA1207648A (fr) 1986-07-15
FR2504495A1 (fr) 1982-10-29
BE892984A (fr) 1982-08-16
GB2105646B (en) 1985-04-24
FR2504495B1 (fr) 1987-06-19

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