DE2265534B2 - Vorrichtung zum Abziehen einer thermoplastischen Bahn aus dem Bereich der Schweißstangen einer Beutelherstellungsmaschine bei einer Produktionunterbrechung - Google Patents

Vorrichtung zum Abziehen einer thermoplastischen Bahn aus dem Bereich der Schweißstangen einer Beutelherstellungsmaschine bei einer Produktionunterbrechung

Info

Publication number
DE2265534B2
DE2265534B2 DE2265534A DE2265534A DE2265534B2 DE 2265534 B2 DE2265534 B2 DE 2265534B2 DE 2265534 A DE2265534 A DE 2265534A DE 2265534 A DE2265534 A DE 2265534A DE 2265534 B2 DE2265534 B2 DE 2265534B2
Authority
DE
Germany
Prior art keywords
web
pulling
area
welding
manufacturing machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE2265534A
Other languages
English (en)
Inventor
Ronald Leroy Bonduel Wis. Lotto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FMC Corp
Original Assignee
FMC Corp
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 FMC Corp filed Critical FMC Corp
Publication of DE2265534B2 publication Critical patent/DE2265534B2/de
Ceased legal-status Critical Current

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
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/06—Severing by using heat
    • 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
    • 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
    • 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
    • B29C66/05—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
    • B29C66/40—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
    • 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
    • B29C66/80—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
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81425—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being stepped, e.g. comprising a shoulder
    • 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
    • B29C66/8141—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
    • B29C66/81431—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 cavity, e.g. a groove
    • 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
    • B29C66/81—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
    • B29C66/8182—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 thermal insulating constructional aspects
    • B29C66/81821—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 thermal insulating constructional aspects of 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
    • B29C66/80—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
    • B29C66/8226—Cam mechanisms; Wedges; Eccentric mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/851—Bag or container making machines
    • B29C66/8511—Bag making machines
    • 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
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
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    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • 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
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    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • 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
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • B31B70/10—Feeding or positioning webs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

Die Erfindung geht aus von einer Vorrichtung nach dem Oberbegriff des Anspruchs 1.
Eine Vorrichtung dieser Art ist nach der US-PS 32 57 256 bekannt
Allgemein wird zum Stand der Technik bemerkt:
Beutelherstellungsmaschinen zum Herstellen von Beuteln aus thermoplastischem Bahnmaterial können so aufgebaut sein, daß sie seitlich oder unten geschweißte Beutel herstellen. Seitlich geschweißte Beutel werden hergestellt, indem eine Rolle aus thermoplastischem Material abgewickelt und entlang oder in der Nähe der Längsmittellinie umgefaltet wird. Die gefaltete Bahn wird stufenweise über eine intermittierend umlaufende, als untere Schweißstange dienende Stützwalze vorgeschoben. Über der Stützwalze ist die querverlaufende, auf- und abbewegbar angeordnete Schweißstange vorgesehen, die die Bahn erfaßt- und verschweißt und abtrennt, wenn sie gegen die Stützwalze gedrückt wird. Wenn die obere Schweißstange nach oben bewegt wird, wird die Stützwalze mit einer Oberflächengeschwindigkeit gedreht, die größer als die Anfangsgeschwindigkeit der Bahn ist, damit die Tendenz des Bereichs der Bahn, der in Berührung mit der Stützwalze geschmolzen worden ist, an der Stützwalze festzukleben, überwunden wird. Beutelherstellungsmaschinen zur Herstellung unten geschweißter Beutel weisen dieselbe Tendenz auf. Bisher gab es keine zufriedenstellend arbeitende Einrichtung, die ein Anhaften der Bahn an den Schweißstangen verhinderte.
Aufgabe der Erfindung ist es, eine Vorrichtung eingangs genannter Art anzugeben, die eine Wärmebeschädigung des vorderen Teils der Bahn durch die Schweiß- und Schneidstation verhindert, wenn die Beutelherstellung um einen oder mehrere Arbeitstakte unterbrochen wird.
Die Lösung dieser Aufgabe ist in dem Kennzeichen des Anspruchs 1 angegeben.
Die Erfindung bewirkt bei einer Unterbrechung der Beutelherstellung über einen oder mehrere Arbeitszyklen ein sicheres Zurückziehen des Bahnmaterials aus dem Schweißstangenbereich, so daß der erwärmte Bereich der Bahn zuverlässig von den Schweißstangen abgestreift wird, bevor die Bahn bei Wiederaufnahme der Beutelherstellung wieder schrittweise vorgeschoben wird.
Eine konstruktiv besonders einfache Ausführungsform der Maschine ist im Kennzeichen des Anspruchs 2 angegeben.
Die Erfindung wird im folgenden an einem Ausführungsbeispiel unter Hinweis auf die beigefügten
ίο Zeichnungen beschrieben
Fig. 1 zeigt die Schweiß- und Schneidstation einer Beutelherstellungsmaschine;
Fi g. 2 zeigt die Schweißstation mit aus dem Bereich der Schweißstangen zurückgezogener Bahn.
is Die Bahn W wird in der Beutelherstellungsmaschine 10 in Richtung des Pfeiles A einer Schweiß- und Schneidstation 30 zugeführt Der Bahnantrieb ist so eingerichtet, daß er die Bahn um eine vorbestimmte Länge vorschiebt, die von der Beutellänge abhängt, wenn ein schlauchförmiges Material verwendet wird, und die von der Breite des gewünschten Beutels abhängt, wenn flaches, gefaltetes Bahnmaterial verarbeitet wird. Nach dem Vorschub der gewünschten Bahnlängf. wird die Bewegung der Bahn angehalten, so daß es den Schweiß- und Schneideinrichtungen der Station 30 möglich ist, die Bahn abzutrennen und entlang einer Querlinie unterhalb der Schweißstange zu schweißen.
Die Schweiß- und Schneidstation 30 weist eine obere Schweißstange 122 auf, die mit einer unteren Schweißstange 124 zusammenwirkt.
Nachdem die Bahn in Querrichtung abgetrennt und geschweißt worden ist, wird der dadurch hergestellte Beutel abgelegt und gestapelt.
Elemente, die für den intermittierenden Vorschub der Bahn W, die Schweißung und den Transport der Beutel von der Schweiß- und Schneidstation 30 vorgesehen sind, sind in Fig. 1 gezeigt. Die Bahn Wwird durch ein Paar Zugwalzen 40 und 42 aufgenommen, und zwar durch eine obere und eine untere Zugwalze. Die Zugwalzen sind mit einem Gummiüberzug versehen, der in in axialem Abstand liegenden Intervallen geschlitzt ist und ein Paar von Abstreiffingern 44 und 46 aufnimmt, die starr an Querstangen 48 und 49 befestigt sind.
Die obere Zugwalze 40 ist um 52 schwenkbar in Gliedern 50 gelagert.
Die untere Zugwalze 42 wird durch eine Kette oder einen Steuerriemen 54 intermittierend angetrieben, der
so um eine Riemenscheibe 56 verläuft, die auf eine Welle 58 aufgekeilt ist, die in Lagern 60 drehbar angeordnet ist, die durch eine rohrförmige Hülse 62 getragen werden.
Die Welle 58, die die untere Zugwalze 42 über die Riemenscheibe 56 und den Steuerriemen 54 antreibt, wird intermittierend gedreht und fördert und stoppt die Bewegung der Bahn. Zur Erzielung eines derartigen intermittierenden Vorschubs ist der Welle 58 eine Bremskupplung 64 zugeordnet.
Ein Bremsring 102 der Bremskupplung 64 ist über Lager 104 drehbar auf der Hülse 62 angeordnet. Der Bremsring 102 ist mit einem Ansatz 106 versehen, in den eine Schraube 108 eingeschraubt ist, die ein Gelenk für einen Klotz UO bildet, der an der Stange 112 eines Linear-Betätigungsorgans, nämlich eines Zylinders 114 befestigt ist. Der Bremsring 102 ist an einer Bremsspule der Bremskupplung 64 befestigt und dafür vorgesehen, die vordere Kante der Bahn Wum einen ausreichenden Abstand von der Schweiß- und Schneidstation 30
zurückzuziehen, wenn die Maschine 10 angehalten wird und damit eine Wärmebeschädigung und folglich eine Zerstörung der vorderen Bahnkante zu vermeiden.
Der Zylinder 114 wird zurückgezogen oder vorgeschoben, je nachdem, ob die Maschine zur Herstellung von Beuteln in Betrieb oder gestoppt ist Wenn der »Aus«-Knopf der elektrischen Steuerschaltung niedergedrückt wird und der Hauptantriebsmotor von der Leitung getrennt wird, wird ein Zeit-Verzögerungsrelais eingeschaltet und läuft ab. Ein Solenoid-Ventil wird sodann betätigt und schiebt die Stange 112 des Zylinders 114 vor. Zugleich wird die Bremsspule erregt und unterbricht die Antriebsverbindung zwischen einer Eingangswelle, die kontinuierlich umläuft, und der Welle 58, die die Zugwalzen 40 und 42 dreht Da der Bremsring 102 mit der Bremsspule starr verbunden ist, bewirkt eine Betätigung des Zylinders 114 eine Drehung der Welle 58. Dadurch wird eine Wärmebeschädigung des VOi deren Bereiches der Bahn durch die Schweiß- und Schneidstation 30 verhindert, wenn die Beutelherstellung für einen oder mehrere Arbeitstakte unterbrochen wird.
Der Ring 102 weist einen radial vorspringenden Ansatz 116 auf, dessen Winkelbahn durch Anschläge 118 und 120 begrenzt wird.
In Fig. 1 befindet sich der Zylinder 114 in seiner zurückgezogenen Stellung und bringt den in ausgezogenen Linien dargestellten Ansatz 116 in feste Berührung mit dem Anschlag 118. Bei einem Vorschieben der Stange 112 aus dem Zylinder 114 wird der Ring 102 gedreht, so daß der Ansatz 116 in Berührung mit dem
ίο Anschlag 120 gebracht wird. Dieser Zustand ist in strichpunktierten Linien dargestellt Zugleich wird die untere Zugwalze 42 aufgrund des Umlaufs des Steuerriemens 54 um die Riemenscheibe 56 gedreht Da die Zugwalze 40 gegen die Zugwalze 42 gepreßt wird, werden beide Walzen zugleich gedreht und ziehen die Bahn W rückwärts in Richtung des Pfeiles T von der Schweiß- und Schneidstation 30 ab und vermeiden somit jegliche Beschädigung der Folie aufgrund der Wärme, die durch die Schweißstangen ausgestrahlt wird, wenn die Maschine über einen oder mehrere Arbeitstakte abgeschaltet wird.
Hierzu 2 Blatt Zeichnungen

Claims (2)

Patentansprüche:
1. Vorrichtung zum Abziehen einer schrittweise in einer Richtung für die Beutelherstellung geförderten Bahn aus thermoplastischem Material von einer gegenüber einer unteren Schweißstange auf- und abbewegten oberen Schweißstange, die die Bahn in Längsabständen, die den Förderschritten entsprechen, quer zu ihrer Förderrichtung in den Pausen zwischen den Förderschritten querschweißt und trennt, gekennzeichnet durch eine auf eine Unterbrechung der Beutelherstellung über einen oder mehrere Arbeitstakte ansprechende Steuerschaltung, die zeitverzögert nach dem Anhalten von Vorzugswalzen (40, 42) für die Bahn (W) ein Linearbetätigungsorgan (112, 114) zum Zurückziehen der Bahn (W) aus dem Bereich der Schweißstangen (122,124) betätigt
2. Maschine nach Anspruch 1, dadurch gekennzeichnet, daß die Steuerschaltung ein Zeitverzögerungsrelais enthält, das ein Solenoid-Ventil zum Betätigen des als Kolben-Zylinder-Aggregat ausgebildeten Linearbetätigungsorgans (112,114) erregt
DE2265534A 1971-11-12 1972-09-14 Vorrichtung zum Abziehen einer thermoplastischen Bahn aus dem Bereich der Schweißstangen einer Beutelherstellungsmaschine bei einer Produktionunterbrechung Ceased DE2265534B2 (de)

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Application Number Priority Date Filing Date Title
US19828271A 1971-11-12 1971-11-12

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DE2265534B2 true DE2265534B2 (de) 1981-05-21

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ID=22732719

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Application Number Title Priority Date Filing Date
DE2265534A Ceased DE2265534B2 (de) 1971-11-12 1972-09-14 Vorrichtung zum Abziehen einer thermoplastischen Bahn aus dem Bereich der Schweißstangen einer Beutelherstellungsmaschine bei einer Produktionunterbrechung
DE2265432A Ceased DE2265432B1 (de) 1971-11-12 1972-09-14 Verfahren zum Abziehen einer Bahn aus thermoplastischem Material fuer die Beutelherstellung von einer Schweissstange und Beutelherstellungsmaschine zur Durchfuehrung des Verfahrens
DE19727233942 Expired DE7233942U (de) 1971-11-12 1972-09-14
DE2245198A Expired DE2245198C3 (de) 1971-11-12 1972-09-14 Beutelherstellungsmaschine

Family Applications After (3)

Application Number Title Priority Date Filing Date
DE2265432A Ceased DE2265432B1 (de) 1971-11-12 1972-09-14 Verfahren zum Abziehen einer Bahn aus thermoplastischem Material fuer die Beutelherstellung von einer Schweissstange und Beutelherstellungsmaschine zur Durchfuehrung des Verfahrens
DE19727233942 Expired DE7233942U (de) 1971-11-12 1972-09-14
DE2245198A Expired DE2245198C3 (de) 1971-11-12 1972-09-14 Beutelherstellungsmaschine

Country Status (7)

Country Link
US (2) US4101363A (de)
BE (1) BE789622A (de)
CA (1) CA987151A (de)
DE (4) DE2265534B2 (de)
ES (2) ES406376A1 (de)
GB (1) GB1384570A (de)
IT (1) IT965399B (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3992981A (en) * 1975-11-19 1976-11-23 Fmc Corporation Web stripping apparatus
US4077306A (en) * 1976-10-21 1978-03-07 Fmc Corporation Bag machine cycle interrupt
DE2755860C2 (de) 1977-12-15 1979-09-20 Stiegler, Karl-Heinz, 7000 Stuttgart Maschine zum Herstellen von Schweißnähten an einer thermoplastischen Folienbahn
DE2915689C2 (de) * 1979-04-18 1985-07-25 Windmöller & Hölscher, 4540 Lengerich Vorrichtung zur lagerichtigen Abgabe von von einer Materialbahn abgetrennten Abschnitten
US4261779A (en) * 1979-07-25 1981-04-14 Fmc Corporation Indexing roll drive system
US4295908A (en) * 1979-12-10 1981-10-20 Manhattan R. F. Die Company Method and apparatus for heat sealing a plurality of sets of continuous plastic strips together by radio frequency energy
US4313781A (en) * 1980-06-26 1982-02-02 Ro-Ann Industries Corporation Method and apparatus for cutting and sealing thermoplastic material
JPS57131517A (en) * 1981-02-10 1982-08-14 Ube Ind Ltd Method and apparatus for welding thermally shrinkable laminated sheet having embedded copper wire
DE3151848A1 (de) * 1981-12-30 1983-07-28 M. Lehmacher & Sohn Gmbh Maschinenfabrik, 5216 Niederkassel Vorrichtung zur herstellung von kunststoffbeuteln
US4629530A (en) * 1983-03-14 1986-12-16 Becking Paul E Apparatus for welding of continuous loop ribbon
US4935081A (en) * 1983-03-14 1990-06-19 Becking Paul E Method for welding of continuous loop ribbon
US4610650A (en) * 1984-02-07 1986-09-09 Pcl Packaging Limited Plastic bag handle forming apparatus
FR2566701B1 (fr) * 1984-06-29 1986-11-28 Lagain Georges Dispositif pour le guidage d'une gaine notamment en matiere plastique a la sortie d'une machine pour la fabrication de sacs
US4708045A (en) * 1986-01-13 1987-11-24 Baxter Travenol Laboratories, Inc. Replaceable knife and holder
US4964944A (en) * 1986-07-28 1990-10-23 Baxter International Inc. Apparatus for sealing and severing a web of film
US4761197A (en) * 1986-07-28 1988-08-02 Baxter Travenol Laboratories, Inc. Apparatus for sealing a web of film
DE3869338D1 (en) * 1987-09-28 1992-04-23 Windmoeller & Hoelscher Welding together thermoplastic sheets
IE890370A1 (en) * 1989-02-06 1991-07-31 Idough Invest Company Improvements relating to bale wrapping machines
US5358592A (en) * 1989-07-11 1994-10-25 Nippon Flute Co., Ltd. Bag making machine control
US5009740A (en) * 1989-08-09 1991-04-23 Nippon Flute Co., Ltd. Bag making machine
DE3936515A1 (de) * 1989-11-02 1991-05-08 Windmoeller & Hoelscher Vorrichtung zum querschneiden und querschweissen von bahnen
US6544382B2 (en) 1999-11-15 2003-04-08 Pactiv Corporation Apparatus for high-speed heating and cooling of a polymer
US20040082455A1 (en) * 2002-10-23 2004-04-29 Winiecki Gerald R. Shuttle pouch machine
DE102010012692A1 (de) * 2010-03-24 2011-09-29 Lemo Maschinenbau Gmbh Vorrichtung zur Herstellung von Beuteln oder Säcken
DE102016123805A1 (de) * 2016-12-08 2018-06-14 Haver & Boecker Ohg Sackherstellvorrichtung und Verfahren

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257256A (en) * 1962-02-12 1966-06-21 Lehmacher & Sohn Device for welding and cutting thermoplastic webs

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1752681A (en) * 1928-08-28 1930-04-01 Julian W Maxson Feeding and stacking method and machine
US2882956A (en) * 1956-11-09 1959-04-21 Herman C Weist Plastic bag making machine
US3043729A (en) * 1958-06-27 1962-07-10 Schjeldahl Co G T Sheet feeding and sealing machine
US2947345A (en) * 1958-10-08 1960-08-02 Schjeldahl Co G T Machine for making articles from multiple thermoplastic webs
DE1150509B (de) * 1958-10-23 1963-06-20 Hermann Barth Fa Vorrichtung zum Schneiden von duennen Kunststoff-Folien
US3060075A (en) * 1960-07-14 1962-10-23 Nat Distillers Chem Corp Method and apparatus for producing continuous bag stock
US3162564A (en) * 1960-09-07 1964-12-22 Fr Hesser Maschinenfabrik Ag F Heat sealing apparatus
DE1212831B (de) * 1962-09-12 1966-03-17 Windmoeller & Hoelscher Quertrenneinrichtung zum kontinuierlichen Abtrennen von Schlauchstuecken
CH451487A (fr) * 1965-05-17 1968-05-15 Kureha Chemical Ind Co Ltd Procédé et machine pour fabriquer en continu des sachets à partir d'un film tubulaire

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257256A (en) * 1962-02-12 1966-06-21 Lehmacher & Sohn Device for welding and cutting thermoplastic webs

Also Published As

Publication number Publication date
US4105489A (en) 1978-08-08
DE2245198A1 (de) 1973-05-24
DE2245198C3 (de) 1986-11-13
DE2265432B1 (de) 1980-12-18
DE2245198B2 (de) 1980-12-04
GB1384570A (en) 1975-02-19
CA987151A (en) 1976-04-13
BE789622A (fr) 1973-02-01
ES435705A1 (es) 1976-12-16
US4101363A (en) 1978-07-18
DE7233942U (de) 1987-03-19
ES406376A1 (es) 1976-01-16
IT965399B (it) 1974-01-31

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