PL91813B1 - - Google Patents

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Publication number
PL91813B1
PL91813B1 PL1973161290A PL16129073A PL91813B1 PL 91813 B1 PL91813 B1 PL 91813B1 PL 1973161290 A PL1973161290 A PL 1973161290A PL 16129073 A PL16129073 A PL 16129073A PL 91813 B1 PL91813 B1 PL 91813B1
Authority
PL
Poland
Prior art keywords
foil
sleeve
welding
rollers
pressure rollers
Prior art date
Application number
PL1973161290A
Other languages
English (en)
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 filed Critical
Publication of PL91813B1 publication Critical patent/PL91813B1/pl

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • 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
    • B29C65/78—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
    • B29C65/7888—Means for handling of moving sheets or webs
    • B29C65/7894—Means for handling of moving sheets or webs of continuously moving sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C66/03—After-treatments in the joint area
    • B29C66/032—Mechanical after-treatments
    • B29C66/0322—Post-pressing without reshaping, i.e. keeping the joint under pressure after joining
    • 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
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • 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
    • B29C66/343—Making tension-free or wrinkle-free joints
    • B29C66/3432—Making tension-free or wrinkle-free joints by holding the material loose or tension-free during joining
    • 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
    • B29C66/70—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
    • 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
    • B29C66/8124—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 structure of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81241—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 structure of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps being porous or sintered
    • 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • 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
    • B29C66/83411—Roller, cylinder or drum types
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B29C66/93441—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed the speed being non-constant over time
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B29C66/93451—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed by controlling or regulating the rotational speed, i.e. the speed of revolution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0045—Perforating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0081—Shaping techniques involving a cutting or machining operation before shaping
    • 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
    • B29C2795/00—Printing on articles made from plastics or substances in a plastic state
    • 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
    • B29C66/71—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 composition of the plastics material 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
    • B29C66/80—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
    • B29C66/818—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
    • 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
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83415—Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B29C66/83513—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums cooperating jaws mounted on rollers, cylinders or drums and moving in a closed path
    • 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
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/003—Flexible containers made from webs starting from tubular webs
    • 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
    • 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
    • B31B70/74—Auxiliary operations
    • B31B70/92—Delivering
    • B31B70/94—Delivering singly or in succession
    • B31B70/946—Delivering singly or in succession the bags being interconnected

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Description

Przedmiotem wynalazku jest sposób ciagly, wytwarzania torebek z folii termoplastycznej oraz urzadzenie do ciaglego wytwarzania torebek z folii termoplastycznej. Sposób wedlug wynalazku jest procesem ciaglym, w którym element zgrzewajacy zgrzewa przesuwany splaszczony rekaw z folii termoplastycznej, przy czym wykonana torebka jest oddzielona od pozostalego rekawa folii, przez perforacje wykonana w sasiedztwie zlacza lub na samym zlaczu.Znany jest sposób wytwarzania torebek, który jest obarczony wada polegajaca na tym, ze wskutek dzialania elementu zgrzewajacego kurczy sie tworzywo termoplastyczne w miejscu zgrzania, co zmienia wlasciwosci folii i czesto obniza jakosc zgrzanego polaczenia.Jest oczywiste, ze wytrzymalosc torebki zmniejsza sie pod wplywem skurczu i spowodowanego zmniejszenia grubosci scianek, wskutek czego torebki po napelnieniu pekaja.Znany sposób posiada niedogodnosci, które próbowano usunac, odcinajac czesc rekawa z folii przed wykonaniem zgrzewanego zamkniecia swobodnego konca rekawa z folii. Sposób zgrzewania odcietych czesci rekawa folii powoduje kurczenie sie tworzywa z obu konców w kierunku zgrzanego polaczenia, choc nie zachodzi oslabienie scianek torebki. Sposób ten posiada wade polegajaca na tym, ze nie mozna wytwarzac torebek w postaci tasmy, które zgrzane sa ze soba a rozdzielone od siebie perforacja. Obecnie stosuje sie taka tasme folii do wytwarzania cienkosciennych toreb wykorzystywanych jako pojemniki na smieci w gospodarstwie domowym.Celem wynalazku jest opracowanie sposobu, który wyeliminuje niedogodnosci znanych sposobów i który umozliwi uzyskanie szeregu toreb polaczonych perforacja, przy czym szew zgrzewany ma wysoka jakosc, a jego tworzenie nie powoduje niepozadanego miejscowego oslabienia scianek.2 91 813 W sposobie wedlug wynalazku zgrzewa sie przesuwany splaszczony rekaw z folii termoplastycznej oraz oddziela sie perforacja torebki od siebie i od pozostalej czesci rekawa z folii w sasiedztwie lub na szwie zgrzewajacym. W sposobie tym jedna nie naprezona warstwe rekawa z folii podaje sie na powierzchnie zespolu zgrzewajacego,-a nastepnie rekaw z folii podaje sie w obszar walców dociskowych, przy czym predkosc podawania rekawa z folii po wyjsciu z obszaru zgrzewania jest mniejsza niz predkosc podawania rekawa z folii przed obszarem zgrzewania, zapewniajac swobodne kurczenie sie rekawa z folii oraz wlasciwa jakosc polaczenia, natomiast w czasie zgrzewania warstwy rekawa z folii znajduja sie w bliskim kontakcie bez ich docisku, zas po zmiekczeniu powierzchni przeznaczonych do polaczenia ustaje grzanie zespolu zgrzewajacego. Rekaw folii podaje sie pomiedzy walce dociskowe w których powierzchnia przynajmniej jednego walca styka sie z warstwa materialu nie podgrzewana przez zespól zgrzewajacy i utrzymuje sie w temperaturze, ponizej temperatury zmiekczania materialu plastycznego, a szczególnie w temperaturze otoczenia lub nizszej..Zlacze rekawa z folii wyciaga sie slizgowo z pomiedzy walków dociskowych przed ponowna operacja zgrzewania, dla zrównowazenia "róznicpredkosci przesuwu folii.Przy stosowaniu sposobu wedlug wynalazku moga byc na folii drukowane napisy po wykonaniu zlacza w taki sposób, ze druk nanosi sie w obszarze pomiedzy zlaczem i oslabionym obszarem, umieszczonych w duzej ' odleglosci. W rzeczywistosci na ogól najpierw drukuje sie napisy na folii, przed wykonaniem szwu zgrzewajacego i perforacji. Sposób takiego wykonania posiada niedogodnosc, poniewaz elementy zgrzewajace czesto stykaja sie z zadrukowana folia, co obniza estetyke wykonania i jakosc dzialania wspomnianych elementów zgrzewajacych.Poza tym jakosc drukowania jest lepsza kiedy zachowana jest pewna odleglosc od zgrzewanego polaczenia.Urzadzenie wedlug wynalazku wyposazone jest w zsynchronizowane ze soba zespoly walków, odbierajacych, zespól prowadzacy rekaw z folii oraz co najmniej jeden ogrzewany zespól zgrzewajacy jak równiez zespól oddzielajacy i/lub perforator. Urzadzenie posiada naprzeciw obrotowego bebna co najmniej jeden walec lub walce oraz ma regulowana równa podwójnej grubosci warstwy odleglosc pomiedzy bebnem i walcami.Element zgrzewajacy jest odizolowany termicznie od powierzchni obrotowej bebna, a dwa wspólpracujace walce dociskowe posiadaja chlodzony przynajmniej jeden z walców dociskowych stykajacy sie z warstwa nie podgrzewana przez element grzejny zespolu zgrzewajacego. Urzadzenie ma odsuwane od siebie wspólpracujace miedzy soba walce dociskowe dla podania folii miedzy te walce bez wywierania na nie nacisków. Urzadzenie wedlug wynalazku posiada walec napinajacy, uruchamiany sprezyna znajdujaca sie za walcami dociskowymi.Urzadzenie wedlug wynalazku przedstawione jest na rysunku w przykladzie wykonania w ujeciu schematycznym.Urzadzenie zawiera osadzony obrotowo zwój 1, na którym znajduje sie folia termoplastyczna 3. Zwój ten jest podparty na obrotowych walkach gumowych 2, które sa napedzane z predkoscia obwodowa odpowiadajaca odpowiedniej predkosci podawania folii.Urzadzenie posiada walki prowadzace 4, którymi jest regulowana predkosc przesuwu folii 3. Za walkami prowadzacymi 4 znajduja sie perforatory 5, które na rekaw z folii nanosza poprzeczna linie perforacji, umozliwiajac pózniejsze odrywanie torebek od tasmy folii. Perforatory 5 skladaja sie z obrotowego bebna z ostrzami i wspólpracujacego z nim walka oporowego 6.Po wykonaniu perforacji folia jest przesuwana przez obrotowy beben 8 o powierzchni metalowej, na której znajduje sie element zgrzewajacy 10, odizolowany termicznie od obrotowego bebna 8. Element zgrzewajacy 10 jest wykonany z metalu, korzystnie z miedzi i pokryty teflonem. Element zgrzewajacy mozna ogrzewac do temperatury od 200-400°C przy pomocy elementów grzejnych (nie pokazanych na rysunku) w zaleznosci od grubosci folii, predkosci przesuwu i rodzaju folii. Folia jest dociskana wstanie nie naprezonym do elementu zgrzewajacego 10 przy pomocy walków prowadzacych 4. Powierzchnie folii zostaja w ten sposób zmiekczone i kazda z nich jest ogrzana do temperatury umozliwiajacej ich polaczenie pod wplywem przylozonego nacisku.Powierzchnia walka 8 poza elementem zgrzewajacym 10 powinna miec temperature znacznie nizsza od temperatury miekniecia folii, na przyklad ponizej 60°Cdla polietylenu a najkorzystniej nie wyzsza niz 30°C. Po ogrzaniu powierzchni folii do wspomnianej temperatury odsuwa sie ja od elementu zgrzewajacego 10 i przeprowadza pomiedzy wspólpracujacymi ze soba walcami chlodzacymi 12 i walcami dociskowymi 13.Stwierdzono, ze docisk rekawa z folii po uprzednim zmiekczeniu warstwy bezposrednio stykajacej sie z powierzchnia walca zgrzewajacego 10 zwieksza jakosc zgrzanego polaczenia. Walec chlodzacy 12 jest wewnatrz wyposazony w chlodzaca wezownice 18 dzieki czemu mozna utrzymywac powierzchnie walca chlodzacego 12 w temperaturze pokojowej lub ponizej tej temperatury.W celu zapobiegniecia oddzielania sie górnej warstwy folii od warstwy stykajacej sie z walcem zgrzewajacym w trakcie pracy zespolu zgrzewajacego, stosuje sie dwa walce 7 i 9 wykonane z gumy piankowej.Najmniejsza odleglosc pomiedzy powierzchnia walka 8 i odpowiednimi walcami 7 i 9 jest równa calkowitej grubosci scianek rekawa zfolii. / /01813 3 Walce 7 i 9 nie dociskaja folii. Element zgrzewajacy 10 jest odizolowany od powierzchni bebna 8 przypomocy izolacji azbestowej. Regulacje polozenia walców ly 9 i 11 zapewniono umieszczajac osie tych walców w szczelinach, w których mozna je przesuwac.Powierzchnie walca dociskanego 13 najlepiej wykonac z gumy. lecz mozna równiez zastosowac inny material, jak na przyklad metalowa powierzchnie pokryta teflonem. W pewnych przypadkach lepiej stosowac to ostatnie rozwiazanie. Dzwignia 19 ma za zadanie docisk walca 13 do walca chlodzacego 12.Walce rprowadzace 4 przenosza rekaw z folii nieco szybciej niz walec 13 dociskowy i walec chlodzacy 12, tak, ze rekaw folii 3 styka sie z elementem zgrzewajacym 10 w stanie nie naprezonym.Gdy rekaw z folii przestanie sie stykac z elementem zgrzewajacym 10 i przed ponownym zetknieciem z nim folii jest ona wyciagana z pomiedzy walców 12 i 13 z poslizgiem, za pomoca walca napinajacego 20 wspólpracujacego ze sprezyna 21. W ten sposób unika sie tworzenia zbyt wielkich zwisów pomiedzy bebnem 8 a walcami 12 i 13. To samo mozna uzyskac odsuwajac walec 13 od walca 12 chlodzacego.Za walcem chlodzacym 12 i walcem dociskowym 13 sa ustawione dwa wspólpracujace walce obrotowe 14 i 15, które przesuwaja folie z taka sama predkoscia, jak walki prowadzace 4. Z walków tych folia przechodzi przez mechanizm drukujacy 18a, gdzie nastepuje drukowanie napisów. Druk nanosi sie dokladnie pomiedzy zgrzanym polaczeniem i perforacja. Nie jest to jednakze konieczne, poniewaz mozna równiez drukowac na zgrzanym polaczeniu badz perforacji.Po wyjsciu z mechanizmu drukujacego folia przechodzi przez trójkat 16, w którym zostaje zlozona na pól, a nastepnie przez mechanizm zwijajacy 17, który nawija, na przyklad po dwadziescia torebek. Po nawinieciu pozadanej liczby torebek folie rozrywa sie wzdluz perforacji. W celu uzyskania mozliwie najlepszego polaczenia zgrzewanego pozadane jest obracanie bebna 8 zgrzewajacego, nieco wolniej niz walków prowadzacych 4. Mozna wtedy dogodnie przycisnac folie do bebna zgrzewajacego, dzieki czemu uzyskuje sie dokladne rozgrzanie górnej warstwy folii. Z drugiej strony pozadane jest równiez wolniejsze napedzanie walka dociskowego lub walka chlodzacego, niz bebna zgrzewajacego. PL

Claims (5)

  1. Zastrzezenia patentowe 1. Sposób ciagly, wytwarzania torebek z folii termoplastycznej, w którym zgrzewa sie przesuwany splaszczony rekaw z folii termoplastycznej oraz oddziela sie perforacja torebki od siebie i od pozostalej czesci rekawa z folii, w sasiedztwie lub na szwie zgrzewajacym, znamienny tym, ze nie naprezony rekaw z folii, podaje sie na powierzchnie zespolu zgrzewajacego a nastepnie w obszar walców dociskowych, przy czym predkosc podawania rekawa po wyjsciu z obszaru zgrzewania jest mniejsza niz predkosc podawania przed obszarem zgrzewania, zapewniajac przez to swobodne kurczenie sie rekawa z folii oraz wlasciwa jakosc polaczenia, przy czym w czasie zgrzewania warstwy rekawa z folii znajduja sie w bliskim kontakcie, bez ich docisku, zas po zmiekczeniu powierzchni przeznaczonych do polaczenia ustaje grzanie zespolu zgrzewajacego, a rekaw folii podaje sie pomiedzy walce dociskowe, w których powierzchnia przynajmniej tego walca, która styka sie z warstwa materialu nie podgrzewana przez zespól zgrzewajacy utrzymuje sie w temperaturze ponizej temperatury zmiekczania materialu plastycznego, a szczególnie w temperaturze otoczenia lub nizszej.
  2. 2. Sposób, wedlug zastrz. 1, znamienne tym, zgrzane zlacze rekawa z folii wyciaga sie slizgowo z pomiedzy walków dociskowych przed ponowna operacja zgrzewania dla zrównowazenia róznic predkosci przesuwu folii.
  3. 3. Urzadzenie do ciaglego wytwarzania torebek z folii termoplastycznej wyposazone w zsynchronizowane ze soba zespoly walków podajacych, walków odbierajacych, zespól prowadzacy rekaw z folii oraz co najmniej jeden ogrzewany zespól zgrzewajacy jak równiez zespól oddzielajacy i/lub perforator, znamienne tym, ze posiada naprzeciw obrotowego bebna (8) co najmniej jeden walec lub walce (7,9,10) oraz ma regulowana równa podwójnej grubosci warstwy rekawa z folii odleglosc pomiedzy bebnem (8) i walcami (7, 9, 10) a element zgrzewajacy (10) jest odizolowany termicznie od powierzchni obrotowej bebna (8), przyczym dwa wspólpracujace walce dociskowe (12,13) ustawione w odleglosci od obrotowego bebna (8) dociskajacego rekaw folii posiadaja chlodzony przynajmniej jeden z walców dociskowych (12,13).
  4. 4. Urzadzenie, wedlug zastrz. 3, znamienne ty mr ze ma odsuwane od siebie, walce dociskowe (12, 13) dla podania folii miedzy te walce bez wywierania na nia nacisków.
  5. 5. Urzadzenie wedlug zastrz. 4, znamienny t y m, ze posiada walec napinajacy (20) uruchamiany sprezyna (21) znajdujaca.sie za walcami dociskowymi (12, 13).91813 <8a ,16 I 1 17 Prac. Poligraf. UP PRL naklad 120+18 Cena 10 zl PL
PL1973161290A 1972-03-15 1973-03-15 PL91813B1 (pl)

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JPS55126457A (en) * 1979-03-24 1980-09-30 Noritsu Koki Kk Sealing and printing device
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DE872400C (de) * 1951-11-06 1953-03-30 Wolfgang Gloeyer Verfahren zum Herstellen eines fluessigkeitsdichten Beutels aus einem schlauchfoermigen Ende einer thermoplastischen Kunststoffolie
BE511226A (pl) * 1952-05-07 1900-01-01
US2975824A (en) * 1953-01-19 1961-03-21 G M Pfaff A G Kaiserslautern P Device for seam welding thermoplastic synthetic materials
FR71043E (fr) * 1956-09-17 1959-10-07 Procédé de fabrication de sachets en matière thermoplastique
US2971874A (en) * 1960-03-14 1961-02-14 Equitable Paper Bag Co Method of making plastic bags
US3153607A (en) * 1961-05-08 1964-10-20 Vernon C Ambler Apparatus and method for heat sealing the longitudinal seams of heat sealable tubular webs
CH441724A (it) * 1965-02-22 1967-08-15 Centra Anstalt Macchina per la fabbricazione e l'erogazione automatica di sacchetti in materia plastica ad una apparecchiatura
US3499817A (en) * 1966-09-06 1970-03-10 Dow Chemical Co Apparatus for the formation of seals in thermoplastic film
US3622421A (en) * 1967-02-27 1971-11-23 Continental Can Co Method for forming bags from thermoplastic tubing
US3509799A (en) * 1967-08-04 1970-05-05 Crown Zellerbach Corp Bag-forming method
CH505680A (de) * 1969-05-17 1971-04-15 Windmoeller & Hoelscher Maschine zum Herstellen heissverklebter Flachbeutel

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DK132524C (da) 1976-05-24
SU876054A3 (ru) 1981-10-23
AT334188B (de) 1976-01-10
NO138516B (no) 1978-06-12
RO64790A (ro) 1980-01-15
GB1426814A (en) 1976-03-03
CH553093A (de) 1974-08-30
FI57368C (fi) 1980-08-11
HU171976B (hu) 1978-04-28
AU5307673A (en) 1974-09-12
BG28409A3 (en) 1980-04-15
CS200454B2 (en) 1980-09-15
CA1005333A (en) 1977-02-15
FI57368B (fi) 1980-04-30
DE2310596A1 (de) 1973-09-20
NL154451B (nl) 1977-09-15
NL7203390A (pl) 1973-09-18
FR2176442A5 (pl) 1973-10-26
ES412677A1 (es) 1976-01-01
BR7301859D0 (pt) 1974-07-25
IT982323B (it) 1974-10-21
SE391477B (sv) 1977-02-21
SU686606A3 (ru) 1979-09-15
NO138516C (no) 1978-09-20
IE37365L (en) 1973-09-15
DD102639A5 (pl) 1973-12-20
ATA233273A (de) 1976-04-15
IE37365B1 (en) 1977-07-06
BE796796A (nl) 1973-09-17
ZA731487B (en) 1973-11-28
DK132524B (da) 1975-12-22
DE2310596B2 (de) 1976-04-08
AU464127B2 (en) 1975-08-14

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