DE102005034286A1 - Device for welding thermoplastic synthetic materials, especially film strips, has sealing surface provided on insert which is exchangeable for similar type of insert with different sealing surface, or insert with special coating - Google Patents

Device for welding thermoplastic synthetic materials, especially film strips, has sealing surface provided on insert which is exchangeable for similar type of insert with different sealing surface, or insert with special coating Download PDF

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Publication number
DE102005034286A1
DE102005034286A1 DE200510034286 DE102005034286A DE102005034286A1 DE 102005034286 A1 DE102005034286 A1 DE 102005034286A1 DE 200510034286 DE200510034286 DE 200510034286 DE 102005034286 A DE102005034286 A DE 102005034286A DE 102005034286 A1 DE102005034286 A1 DE 102005034286A1
Authority
DE
Germany
Prior art keywords
insert
sealing surface
sealing
jaw
exchangeable
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.)
Withdrawn
Application number
DE200510034286
Other languages
German (de)
Inventor
Alenxander Epp
Walter Dr. Baur
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.)
Rovema Verpackungsmaschinen GmbH and Co KG
Rovema GmbH
Original Assignee
Rovema Verpackungsmaschinen GmbH and Co KG
Rovema GmbH
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 Rovema Verpackungsmaschinen GmbH and Co KG, Rovema GmbH filed Critical Rovema Verpackungsmaschinen GmbH and Co KG
Priority to DE200510034286 priority Critical patent/DE102005034286A1/en
Publication of DE102005034286A1 publication Critical patent/DE102005034286A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/303—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes reciprocating along only 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
    • 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
    • B29C65/74—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
    • 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
    • B29C66/05—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
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—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
    • B29C66/49—Internally supporting the, e.g. tubular, article 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
    • B29C66/70—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
    • B29C66/814—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
    • B29C66/814—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
    • B29C66/81433—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 being toothed, i.e. comprising several teeth or pins, or being patterned
    • B29C66/81435—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 being toothed, i.e. comprising several teeth or pins, or being patterned comprising several parallel ridges, e.g. for crimping
    • 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
    • B29C66/83—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
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool 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
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83541—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement
    • B29C66/83543—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement cooperating flying jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—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
    • B29C66/70—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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/723—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 structure of the material of the parts to be joined being multi-layered
    • 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
    • B29C66/81433—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 being toothed, i.e. comprising several teeth or pins, or being patterned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene

Landscapes

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

Abstract

The device for welding thermoplastic synthetic materials, especially film strips, includes a jaw component (1) with at least sealing surface (5) and a heating device (6), wherein an insert (10) upon which is provided the sealing surface is exchangeable for a similar type of insert with a different sealing surface, or an insert with a special coating, especially an anti-adhesion coating. The heating device is integrated in the insert.

Description

Der Anmeldegegenstand betrifft den Verpackungsmaschinenbau und dort eine Vorrichtung zum Verschweißen von thermoplastischem Kunststoff, insbesondere einer Folienbahn, welche einen derartigen schweißfähigen Kunststoff aufweist.Of the The subject of the application relates to packaging machine construction and there a device for welding of thermoplastic material, in particular a film web, which is such a weldable plastic having.

Um eine Folienbahn zum Zwecke einer Erzeugung von Beuteln zu verschweißen, ist es bekannt, die Folienbahn umzuformen und mittels gegeneinander bewegbarer Backenkörper oder mittels eines einzigen, gegen einen Widerstand wirkenden Backenkörpers zu verschweißen. Derartige Backenkörper werden bei vertikalen und horizontalen Schlauchbeutelmaschinen zur Beutelerzeugung oder zum Anschweißen einer neuen Folienbahn an eine nahezu aufgebrauchte Folienbahn (sogenannter Splicer) eingesetzt.Around To weld a film web for the purpose of creating bags is it is known to reshape the film web and by means of against each other movable cheek body or by means of a single jaw body acting against a resistance weld. Such cheeks body are used in vertical and horizontal tubular bag machines Bag production or for welding a new film web used to a nearly exhausted film web (so-called splicer).

Die bekannten Vorrichtungen weisen einen Backenkörper auf, mindestens eine Siegelfläche am Backenkörper und eine Heizeinrichtung zum Erwärmen der Siegelfläche bzw. der Siegelflächen, um den in Wärmekontakt mit der Siegelfläche befindlichen Kunststoff aufschmelzen und verschweißen zu können. Des weiteren ist aus der DE 100 05 020 A1 ein beheizbarer Einsatz zum Einsetzen in den Backenkörper bekannt, wobei am Einsatz die Siegelfläche vorgesehen ist. Die Verschweißung des Kunststoffes wird hierbei durch den erwärmten Einsatz ausgeführt, wenn der Backenkörper gegen den Kunststoff gesetzt ist.The known devices have a jaw body, at least one sealing surface on the jaw body and a heating device for heating the sealing surface or the sealing surfaces in order to be able to melt and weld the plastic in thermal contact with the sealing surface. Furthermore, from the DE 100 05 020 A1 a heatable insert known for insertion into the jaw body, wherein on the insert the sealing surface is provided. The welding of the plastic is carried out here by the heated insert when the jaw body is set against the plastic.

Die bekannte Vorrichtung hat den Nachteil, dass sie komplett ausgetauscht werden muss, wenn die Siegelfläche nicht mehr genutzt werden soll, z. B. weil eine anders ausgeführte Folienbahn eingesetzt werden soll, die eine spezielle Siegelflächenbeschichtung, eine spezielle Siegelflächenkontur oder eine spezielle Siegelflächenstruktur erfordert, oder wenn eine Beschichtung einer Siegelfläche abgenutzt ist, und wiederum eine beschichtete Siegelfläche benötigt wird.The known device has the disadvantage that they are completely replaced must be, if the sealing surface should no longer be used, for. B. because a different running film web is to be used, which is a special seal surface coating, a special sealing surface contour or a special seal surface structure requires, or if a coating worn on a sealing surface is, and in turn a coated sealing surface is needed.

Es liegt die Aufgabe zugrunde, eine Vorrichtung gemäß dem Oberbegriff des Anspruchs 1 derart weiterzubilden, dass eine andere Siegelfläche ohne Austausch der Vorrichtung genutzt werden kann.It the object is based, a device according to the preamble of the claim 1 such that another sealing surface without exchange the device can be used.

Gelöst ist die Aufgabe gemäß dem kennzeichnenden Teil des Anspruchs 1. Danach ist der Einsatz gegen einen gleichartigen Einsatz, einen Einsatz mit einer anderen Siegelfläche oder einen Einsatz mit einer speziellen Beschichtung, insbesondere einer Antihaftbeschichtung austauschbar.Solved is the Task according to the characterizing Part of claim 1. Thereafter, the use is against a similar Insert, an insert with another sealing surface or an insert with a special coating, in particular a Non-stick coating exchangeable.

Die vorgeschlagene Vorrichtung hat den Vorteil dass eine andersartige Siegelfläche vorgesehen werden kann, indem der Einsatz ausgetauscht wird. Dabei wird eine andere Siegelfläche in die Siegelposition gesetzt und kann zum Verschweißen einer anders ausgeführten Kunststoffbahn oder zum Erzeugen einer anderen Siegelnaht genutzt werden. Ein Austausch der kompletten Vorrichtung ist nicht nötig. Das Austauschen kann auf unterschiedliche Art und Weise erfolgen. So kann ein in den Backenkörper lediglich eingesteckter Einsatz aus diesem entnommen, und durch einen anders ausgebildeten Einsatz ersetzt werden. So kann eine Laminatfolie mittels einer unbeschichteten Siegelfläche verschweißt werden und eine Monofolie mittels einer mit einer Antihaftbeschichtung versehenen Siegelfläche. Es kann, je nach Folienstärke und Schweißeigenschaft einer Folie, eine entsprechend auf den speziellen Fall angepasste Siegelfläche ausgewählt werden, die z. B. mittels einer einfachen Klemmtechnik in den Backenkörper eingesetzt wird. Es kommt vor, dass nach Durchführung eines Verpackungsvorganges, bei welchem eine Mehrschichtfolie (Laminatfolie) zu verschweißen war, eine Monofolie, z. B. aus Polyethylen verschweißt werden soll. Während für die Mehrschichtfolie eine unbeschichtete Siegelfläche, die eine gute Wärmeübertragung in eine äußere Kunststoffschicht, z. B. Polypropylen, erreicht, ideal ist, muss eine Monofolie, sofern eine dauerbeheizte Siegelfläche vorgesehen ist, mit einer Siegelfläche verschweißt werden, auf welcher eine Antihaftbeschichtung angebracht ist, um ein Anhaften des aufgeschmolzenen Kunststoffes an der Siegelfläche zu vermeiden. Ist eine Siegelfläche unbeschichtet, und eine weitere Siegelfläche mit einer Antihaftbeschichtung, die insbesondere Polytetraflourethylen enthält, versehen, so kann durch einfaches Austauschen des Einsatzes wahlweise eine Siegelfläche mit oder ohne Antihaftbeschichtung in eine Siegelposition gesetzt werden, um eine Monofolie oder eine Mehrschichtfolie zu verschweißen.The proposed device has the advantage that a different type sealing surface can be provided by the use is replaced. there becomes another seal surface set in the sealing position and can be used for welding a differently executed Plastic sheet or used to create another seal become. An exchange of the complete device is not necessary. The Exchanging can be done in different ways. So can one in the cheek body only inserted insert removed from this, and by to be replaced by a differently designed insert. So can one Laminate film are welded by means of an uncoated sealing surface and a monofilm by means of a non-stick coating provided sealing surface. It can, depending on the film thickness and welding property a film, one adapted to the specific case sealing surface selected be, z. B. used by means of a simple clamping technique in the jaw body becomes. It happens that after carrying out a packaging process, in which a multilayer film (laminate film) was to be welded, a monofilm, z. B. to be welded from polyethylene. While for the multi-layer film an uncoated sealing surface, the good heat transfer in an outer plastic layer, z. B. Polypropylene, is ideal, must have a monofilm, provided a permanently heated sealing surface is intended to be welded to a sealing surface, on which a non-stick coating is applied to stick to avoid the melted plastic on the sealing surface. Is a sealed area uncoated, and another sealing surface with a non-stick coating, which in particular contains polytetrafluoroethylene provided, so may easy replacement of the insert optionally with a sealing surface or placed in a sealing position without a non-stick coating, to weld a monofilm or a multilayer film.

Weitere, vorteilhafte Ausgestaltungen der vorgeschlagenen Neuerung sind in den Ansprüchen 2 bis 8 beschrieben.Further, advantageous embodiments of the proposed innovation are in to the claims 2 to 8 described.

Ist die Heizeinrichtung in den Einsatz integriert (Anspruch 2), so ist die Wärmeübertragung von der Heizeinrichtung hin zu einer der Siegelflächen besonders effektiv, da zu jeder Siegelfläche hin nur ein kurzer Weg für die Wärmeleitung vorgesehen ist. Zudem werden Wärmeübergänge an Grenzschichten zweier Materialien vermieden. Dabei kann die Heizeinrichtung als Widerstandsheizelement, z. B. in Form einer Heizpatrone ausgeführt sein. Ein äußerer Mantel der Heizeinrichtung kann dabei die Siegelflächen ausbilden.is the heater integrated into the insert (claim 2), so is the heat transfer from the heater to one of the sealing surfaces especially effectively, because of each sealed area There is only a short way to go the heat conduction is provided. In addition, heat transfer at boundary layers avoided two materials. In this case, the heater as Resistance heating element, z. B. be executed in the form of a heating cartridge. An outer coat The heater can form the sealing surfaces.

Der Einsatz kann einstückig oder zweistückig in einer Quersiegelbacke einer vertikalen Schlauchbeutelmaschine vorgesehen werden (Anspruch 3), wobei zwischen zwei parallel zueinander ausgerichteten, in der Siegelposition befindlichen Siegelflächen eine auslenkbare Trenneinrichtung zum Durchtrennen einer Folienbahn vorgesehen ist. Ist der Einsatz dabei in einstückiger Weise ausgeführt, und weist er zwei parallel zueinander ausgerichtete Siegelflächen in der Siegelposition auf (Anspruch 4), so können durch einfaches Austauschen des Einsatzes zwei andere Siegelflächen für eine nachfolgend andere Art einer Folienschlauchverschweißung genutzt werden.The insert can be one-piece or two-piece in a transverse sealing jaw of a vertical Tubular bag machine are provided (claim 3), wherein between two parallel aligned, located in the sealing position sealing surfaces a deflectable separating device is provided for severing a film web. If the insert is designed in one piece, and has two seal faces aligned parallel to one another in the sealing position (claim 4), two other sealing surfaces can be used for a subsequently different type of film tube welding by simply exchanging the insert.

Die Vorrichtung ist auch als Längssiegelbacke einer vertikalen Schlauchbeutelmaschine, als Splicer (Anspruch 5) oder als Schweißbacke einer horizontalen Beutelmaschine (Anspruch 6) geeignet.The Device is also as longitudinal sealing jaw a vertical tubular bag machine, as a splicer (claim 5) or as a welding jaw a horizontal bagging machine (claim 6) suitable.

Ist gemäß Anspruch 7 ein Einsatz, der eine glatte Siegelfläche aufweist, gegen einen Einsatz austauschbar, welcher eine strukturierte Siegelfläche aufweist, so kann wahlweise eine Struktur zum lokalen Dehnen einer umgeformten Folienbahn eingesetzt werden, um eine schnellere Verschweißung zu erreichen. Dabei werden Siegelflächen mit aufeinander angepasster Struktur gegeneinander gepresst, wobei die dazwischen befindlichen Folienlagen um die Strukturen herum eine Dehnung erfahren. Sie werden dadurch dünner und sind in kürzerer Zeit miteinander verschweißbar.is according to claim Figure 7 shows an insert having a smooth sealing surface, exchangeable for use, which has a structured sealing surface, so may optionally a structure is used for locally stretching a deformed film web to achieve faster fusion. It will be sealing surfaces pressed against each other with matched structure, wherein the intermediate foil layers around the structures to experience a stretch. As a result, they are thinner and shorter in time welded together.

Es können wahlweise unterschiedliche Siegelnahtgeometrien erreicht werden, wenn gemäß Anspruch 8 ein Einsatz, der eine Siegelfläche mit einer bestimmten Kontur oder bestimmten Abmessungen aufweist, gegen einen Einsatz austauschbar ist, dessen Siegelfläche eine andere Kontur oder andere Abmessungen hat.It can optionally different sealing seam geometries can be achieved if according to claim 8 an insert that has a sealed surface having a certain contour or dimensions, is exchangeable against an insert whose sealing surface is a has different contour or other dimensions.

Im folgenden wird die vorgeschlagene Neuerung an Hand Ausführungsbeispiele darstellenden Figuren näher beschrieben. Es zeigt:in the Following is the proposed innovation on hand embodiments illustrative figures closer described. It shows:

1 in einer Seitenansicht eine vertikale Schlauchbeutelmaschine, die einen Splicer, eine Längssiegelbacke und Quersiegelbacken mit jeweils mindestens einem austauschbaren Einsatz aufweist; 1 in a side view of a vertical bagging machine having a splicer, a longitudinal sealing jaw and transverse sealing jaws, each with at least one replaceable insert;

2 in einer Schnittdarstellung die Quersiegelbacken der 1 beim Anlegen an einen Folienschlauch, wobei jeweils zwei austauschbare, unbeschichtete Siegelflächen an jeweils zwei Einsätzen pro Quersiegelbacke vorgesehen sind; 2 in a sectional view of the transverse sealing jaws of 1 when applied to a film tube, with two replaceable, uncoated sealing surfaces are provided on two inserts per transverse sealing jaw in each case;

3 in einer Schnittdarstellung eine Längssiegelbacke analog der in 1 dargestellten, jedoch beim Verschweißen eines aus einer Monofolie gebildeten Folienschlauches, und mit einer Antihaftbeschichtung auf der Siegelfläche des austauschbaren Einsatzes; 3 in a sectional view of a longitudinal sealing jaw analogous to in 1 shown, however, when welding a film tube formed from a monofilm, and with a non-stick coating on the sealing surface of the replaceable insert;

4 in einer Schnittdarstellung einen Splicer analog dem in 1 dargestellten, jedoch mit einer beschichteten Siegelfläche am austauschbaren Einsatz; 4 in a sectional view a splicer analogous to the in 1 illustrated, but with a coated sealing surface on the exchangeable insert;

5 in einer Seitenansicht zwei Siegelflächen einer Quersiegelbacke, in welche ein wendbarer, einstückig ausgebildeter, die Siegelflächen aufweisender Einsatz eingesteckt ist, wobei die Siegelflächen zum Erzeugen jeweils einer Kopfnaht eines Schlauchbeutels und einer Bodennaht eines nachfolgenden Schlauchbeutels vorgesehen ist; 5 in a side view of two sealing surfaces of a transverse sealing jaw, in which a reversible, integrally formed, the sealing surfaces exhibiting insert is inserted, the sealing surfaces is provided for generating a respective head seam of a tubular bag and a bottom seam of a subsequent tubular bag;

6 in einer um 90 Grad relativ zur Ansicht der 5 versetzten Seitenansicht den Einsatz der Quersiegelbacke der 5. 6 in a 90 degrees relative to the view of the 5 offset side view the use of the transverse sealing jaw the 5 ,

7 in einer perspektivischen Ansicht einen Einsatz mit einer glatten Siegelfläche, sowie 7 in a perspective view an insert with a smooth sealing surface, as well

8 in einer perspektivischen Ansicht einen Einsatz mit einer strukturierten Siegelfläche. 8th in a perspective view of an insert with a structured sealing surface.

Bei einer vertikalen Schlauchbeutelmaschine 3 wird eine aus zwei Lagen aufgebaute Folienbahn 14 mittels eines Folienabzugs 15 von einer Vorratsrolle 16 abgerollt und über eine Formschulter 17 gezogen (1). Die Folienbahn 14 wird dabei zu einem Folienschlauch 7 umgeformt, der ein vertikal ausgerichtetes Füllrohr 20 umgibt, durch welches das untere Ende des Folienschlauches 7 befüllt werden kann. Der Folienschlauch 7 wird mittels einer gegen das Füllrohr 20 wirkenden Längssiegelbacke 18 parallel zur Folientransportrichtung 19 unter Erzeugung einer Längsnaht 4 verschweißt. Zwei gegeneinander bewegbare, den Folienschlauch 7 zwischen ihren Siegelflächen 5 einklemmende Quersiegelbacken 2 (2) dienen der Erzeugung von Quernähten 13. Jeweils zwei Quernähte 13 werden gleichzeitig erzeugt und bilden die Kopfnaht eines Schlauchbeutels 12 und die Bodennaht eines nachfolgenden Schlauchbeutels 12. Eine Trenneinrichtung 11 dient zum Abtrennen jeweils eines befüllten und verschlossenen Schlauchbeutels 12 vom Folienschlauch 7. Ein Splicer 21 ist dazu vorgesehen, nach einem Verbrauch der gesamten Vorratsrolle 16 eine neue Folienbahn 14 einer neuen Vorratsrolle 16 an das Ende der vorherigen Folienbahn 14 anzuschweißen.For a vertical bagger 3 becomes a film web made up of two layers 14 by means of a film take-off 15 from a supply roll 16 unrolled and over a form shoulder 17 drawn ( 1 ). The foil web 14 becomes a film tube 7 reshaped, which is a vertically aligned filling tube 20 surrounds, through which the lower end of the film tube 7 can be filled. The film tube 7 is by means of a against the filling tube 20 acting longitudinal sealing jaw 18 parallel to the film transport direction 19 creating a longitudinal seam 4 welded. Two mutually movable, the film tube 7 between their sealed surfaces 5 clamping cross-sealing jaws 2 ( 2 ) serve for the production of transverse seams 13 , Two transverse seams each 13 are generated simultaneously and form the top seam of a tubular bag 12 and the bottom seam of a subsequent tubular bag 12 , A separator 11 serves to separate each one filled and sealed tubular bag 12 from the film tube 7 , A splicer 21 is intended after consumption of the entire supply roll 16 a new film web 14 a new supply roll 16 at the end of the previous film web 14 to weld.

Insgesamt sind vier Vorrichtungen zum Verschweißen der Folienbahn 14 vorgesehen. Diese sind der Splicer 21, die Längssiegelbacke 18 und die beiden Quersiegelbacken 2. Jede Vorrichtung zum Verschweißen weist einen Backenkörper 1 auf. Während am Splicer 21 und an der Längssiegelbacke 18 jeweils eine Siegelfläche 5 vorgesehen ist, sind pro Quersiegelbacke 2 je zwei Siegelflächen 5 vorgesehen. Jede Vorrichtung zum Verschweißen ist mit mindestens einer Heizeinrichtung 6 zum Erwärmen einer Siegelfläche 5 ausgestattet, um den Kunststoff der Folienbahn 14 aufschmelzen und verschweißen zu können. Jede Siegelfläche 5 befindet sich an einem Einsatz 10, der in den entsprechenden Backenkörper 1 eingesteckt ist. Jeder Einsatz 10 ist gegen einen gleichartigen, gegen einen Einsatz 10 mit einer anderen Siegelfläche 5 oder gegen einen Einsatz 10 mit einer speziellen Beschichtung, insbesondere einer Antihaftbeschichtung 22 austauschbar.In total there are four devices for welding the film web 14 intended. These are the splicer 21 , the longitudinal sealing jaw 18 and the two transverse sealing jaws 2 , Each device for welding has a cheek body 1 on. While at the splicer 21 and on the longitudinal sealing jaw 18 one sealing surface each 5 is provided, are per transverse sealing jaw 2 two sealing surfaces each 5 vorgese hen. Each device for welding is with at least one heater 6 for heating a sealing surface 5 equipped to the plastic of the film web 14 melt and weld. Every sealed area 5 is at a mission 10 in the corresponding cheek body 1 is plugged in. Every use 10 is against a similar, against a use 10 with another sealing surface 5 or against a bet 10 with a special coating, in particular a non-stick coating 22 interchangeable.

So kann ein Austausch eines Einsatzes 10 gegen einen gleichartigen Einsatz 10 erfolgen, wenn die zuvor genutzte Siegelfläche 5 in Folge einer festgestellten Wölbung der Siegelfläche 5, z. B. hervorgerufen durch eine mechanische Deformation, nicht mehr für einen konstanten Schweißdruck über die gesamte Siegelfläche 5 nutzbar ist.So can an exchange of a bet 10 against a similar use 10 take place if the previously used sealing surface 5 as a result of a detected curvature of the sealing surface 5 , z. B. caused by a mechanical deformation, no longer for a constant welding pressure over the entire sealing surface 5 is usable.

Beim Ausführungsbeispiel der 3 ist eine Siegelfläche 5 eines mittels einer Klemmeinrichtung 23 gehaltenen Einsatzes 10 einer Längssiegelbacke 18 mit einer Antihaftbeschichtung 22, die Polytetraflourethylen enthält, versehen. Insofern kann die Siegelfläche 5 zum Verschweißen von Polyethylenmonofolie genutzt werden. Ist die Antihaftbeschichtung 22 der Siegelfläche 5 nach längerer Nutzungsdauer abgenutzt, so kann ohne Backenwechsel nach Lösen der Klemmeinrichtung 23 der Einsatz 10 gegen einen gleichartigen Einsatz 10, welcher eine frisch aufgebrachte Antihaftbeschichtung 22 aufweist, ausgetauscht werden. Die neue Siegelfläche 5 könnte jedoch auch unbeschichtet sein, um die Längssiegelbacke 18 für Verbundfolien zu nutzen, bei welchen keine Antihaftbeschichtung 22 notwendig ist. Zwar können Verbundfolien auch mittels Antihaftbeschichtungen 22 verschweißt werden, dies wäre jedoch unwirtschaftlich, da diese Beschichtungen stets nur eine bestimmte Nutzungsdauer haben, und eine Neubeschichtung einen zusätzlichen Aufwand mit sich bringt.In the embodiment of 3 is a sealed area 5 one by means of a clamping device 23 held use 10 a longitudinal sealing jaw 18 with a non-stick coating 22 provided with polytetrafluoroethylene. In this respect, the sealing surface 5 used for welding polyethylene monofilm. Is the non-stick coating 22 the sealing surface 5 worn out after a long period of use, so can without jaw change after loosening the clamping device 23 the use 10 against a similar use 10 , which is a freshly applied non-stick coating 22 has to be replaced. The new seal surface 5 However, it could also be uncoated to the longitudinal sealing jaw 18 to use for composite films, where no non-stick coating 22 necessary is. Although composite films can also be made using non-stick coatings 22 However, this would be uneconomical, since these coatings always have a certain useful life, and a re-coating brings with it an additional effort.

Beim Ausführungsbeispiel der 4 weist eine Siegelfläche 5 eine Antihaftbeschichtung 22 auf, um einen Splicer 21 für Monofolien zu nutzen. In den Einsatz 10, der die Siegelfläche 5 aufweist, ist eine Heizeinrichtung 6 integriert, um durch dort fließenden Strom eine schnelle und direkte Aufwärmung der Siegelflächen 5 zu erreichen.In the embodiment of 4 has a sealing surface 5 a non-stick coating 22 on to a splicer 21 for monofilm use. In the insert 10 that the sealing surface 5 has, is a heater 6 integrated, so that there is a fast and direct warming up of the sealing surfaces due to the current flowing there 5 to reach.

Beim Ausführungsbeispiel der 5 und 6 ist ein Einsatz 10 in einstückiger Weise ausgeführt. Er weist zwei parallel zueinander ausgerichtete, beschichtete Siegelflächen 5 auf. Durch Austausch des Einsatzes 10 könnten zwei unbeschichtete Siegelflächen 5 dazu benutzt werden, jeweils eine als Bodennaht und eine als Kopfnaht dienende Quernaht 13 zu erzeugen.In the embodiment of 5 and 6 is an assignment 10 executed in one piece. It has two parallel sealed sealing surfaces 5 on. By replacing the insert 10 could have two uncoated sealing surfaces 5 are used, each serving as a bottom seam and a head seam transverse seam 13 to create.

Ein Einsatz 10, der eine glatte Siegelfläche 5 aufweist (7) kann gegen einen Einsatz 10 ausgetauscht werden, der eine strukturierte Siegelfläche 8 mit Rillen 9 aufweist (8), um eine Folie während deren Verschweißung zwischen gegeneinander gedrückten Siegelbacken in der Siegelzone zu strecken.A mission 10 that has a smooth seal surface 5 having ( 7 ) can be against a bet 10 exchanged, which is a structured sealing surface 8th with grooves 9 having ( 8th ) to stretch a film during its welding between pressed against each other sealing jaws in the sealing zone.

Des weiteren ist ein Einsatz 10, der eine Siegelfläche 5 mit einer bestimmten Kontur oder mit bestimmten Abmessungen aufweist, gegen einen Einsatz 10 austauschbar, dessen Siegelfläche 5 eine andere Kontur oder andere Abmessungen hat, z. B. anders ausgestaltete Quernähte 13, insbesondere Kopfnähte von Schlauchbeuteln 12 zu erzeugen.Furthermore, an insert 10 that has a sealing surface 5 with a certain contour or with certain dimensions against an insert 10 interchangeable, its sealing surface 5 has another contour or other dimensions, z. B. differently designed cross seams 13 , in particular head seams of tubular bags 12 to create.

11
BackenkörperBack body
22
QuersiegelbackeCross-sealing jaw
33
vertikale Schlauchbeutelmaschinevertical Fill and seal machine
44
Längsnahtlongitudinal seam
55
Siegelflächesealing surface
66
Heizeinrichtungheater
77
Folienschlauchfilm tube
88th
strukturierte Siegelflächestructured sealing surface
99
Rillegroove
1010
Einsatzcommitment
1111
Trenneinrichtungseparator
1212
Schlauchbeuteltubular bag
1313
Quernahtcross seam
1414
Folienbahnsheet
1515
Folienabzugfilm take-off
1616
Vorratsrollesupply roll
1717
Formschulterforming shoulder
1818
LängssiegelbackeLongitudinal sealing jaw
1919
FolientransportrichtungFilm transport direction
2020
Füllrohrfilling pipe
2121
SplicerSplicer
2222
AntihaftbeschichtungNon-stick coating
2323
Klemmeinrichtungclamper
2424
Verbindungconnection

Claims (8)

Vorrichtung zum Verschweißen von thermoplastischem Kunststoff, insbesondere einer Folienbahn (14), welche einen derartigen Kunststoff aufweist, mit einem Backenkörper (1), mindestens einer Siegelfläche (5) am Backenkörper (1), einer Heizeinrichtung (6) zum Erwärmen der Siegelfläche (5), um einen in Wärmekontakt mit der Siegelfläche (5) befindlichen Kunststoff aufschmelzen und verschweißen zu können, sowie mit einem Einsatz (10) zum Einsetzen in den Backenkörper (1), wobei am Einsatz (10) die Siegelfläche (5) vorgesehen ist, dadurch gekennzeichnet, dass der Einsatz (10) gegen einen gleichartigen Einsatz (10), einen Einsatz (10) mit einer anderen Siegelfläche (5) oder einen Einsatz (10) mit einer speziellen Beschichtung, insbesondere einer Antihaftbeschichtung (22) austauschbar ist.Device for welding thermoplastic material, in particular a film web ( 14 ), which comprises such a plastic, with a cheek body ( 1 ), at least one sealing surface ( 5 ) on the cheek body ( 1 ), a heating device ( 6 ) for heating the sealing surface ( 5 ) in thermal contact with the sealing surface ( 5 ) can be melted and welded plastic, and with an insert ( 10 ) for insertion into the jaw body ( 1 ), whereby at the employment ( 10 ) the sealing surface ( 5 ), characterized in that the insert ( 10 ) against a similar use ( 10 ), an insert ( 10 ) with a different sealing surface ( 5 ) or an insert ( 10 ) with a special coating, in particular egg non-stick coating ( 22 ) is interchangeable. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Heizeinrichtung (6) in den Einsatz (10) integriert ist.Device according to claim 1, characterized in that the heating device ( 6 ) in the insert ( 10 ) is integrated. Vorrichtung nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, dass die Vorrichtung als Quersiegelbacke (2) einer vertikalen Schlauchbeutelmaschine (3) ausgeführt ist, wobei zwischen zwei parallel zueinander ausgerichteten Siegelflächen (5) eine auslenkbare Trenneinrichtung (11) zum Durchtrennen einer Folienbahn (14) vorgesehen ist.Apparatus according to claim 1 or claim 2, characterized in that the device as a transverse sealing jaw ( 2 ) of a vertical bagging machine ( 3 ) is executed, wherein between two parallel aligned sealing surfaces ( 5 ) a deflectable separating device ( 11 ) for severing a film web ( 14 ) is provided. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Einsatz (10) in einstückiger Weise ausgeführt ist, und dabei zwei parallel zueinander ausgerichtete Siegelflächen (5) aufweist.Device according to claim 3, characterized in that the insert ( 10 ) is executed in one piece, and thereby two parallel aligned sealing surfaces ( 5 ) having. Vorrichtung nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, dass die Vorrichtung als Längssiegelbacke (18) einer vertikalen Schlauchbeutelmaschine (3) oder als Splicer (21) ausgeführt ist.Apparatus according to claim 1 or claim 2, characterized in that the device as a longitudinal sealing jaw ( 18 ) of a vertical bagging machine ( 3 ) or as a splicer ( 21 ) is executed. Vorrichtung nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, dass die Vorrichtung als Siegelbacke einer horizontalen Beutelmaschine ausgeführt ist.Apparatus according to claim 1 or claim 2, characterized characterized in that the device as a sealing jaw of a horizontal Bag machine running is. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass ein Einsatz (10), der eine glatte Siegelfläche (5) aufweist, gegen einen Einsatz (10) austauschbar ist, welcher eine strukturierte Siegelfläche (8) aufweist.Device according to one of claims 1 to 6, characterized in that an insert ( 10 ), which has a smooth sealing surface ( 5 ) against an insert ( 10 ), which has a structured sealing surface ( 8th ) having. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass ein Einsatz (10), der eine Siegelfläche (5) mit einer bestimmten Kontur oder bestimmten Abmessungen aufweist, gegen einen Einsatz (10) austauschbar ist, dessen Siegelfläche (8) eine andere Kontur oder andere Abmessungen hat.Device according to one of claims 1 to 7, characterized in that an insert ( 10 ), which has a sealing surface ( 5 ) having a certain contour or dimensions against an insert ( 10 ) whose sealing surface ( 8th ) has a different contour or dimensions.
DE200510034286 2005-07-22 2005-07-22 Device for welding thermoplastic synthetic materials, especially film strips, has sealing surface provided on insert which is exchangeable for similar type of insert with different sealing surface, or insert with special coating Withdrawn DE102005034286A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102011005537A1 (en) * 2011-03-15 2012-09-20 Herrmann Ultraschalltechnik Gmbh & Co. Kg Sealing surface structure for producing a sealed seam
IT201700054725A1 (en) * 2017-05-19 2018-11-19 Tsw Ind S R L "FLOWPACK" TYPE PACKAGING MACHINE

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AT340320B (en) * 1973-08-08 1977-12-12 Altstaedter Verpack Vertrieb SEAL JAW
US4079570A (en) * 1977-03-09 1978-03-21 Crown Zellerbach Corporation Quick-change heatseal die for forming easy-open prackages
US5277745A (en) * 1991-11-27 1994-01-11 Reynolds Metals Company Sever and seal bar having interchangeable inserts and blades
DE4318415A1 (en) * 1993-06-03 1994-12-08 Buehler Optima Maschf Welding element for foil sealing
DE19949915A1 (en) * 1999-10-16 2001-04-19 Rovema Gmbh Heat sealing bar for plastic packaging films, has an interchangeable sealing face component
DE10005020A1 (en) * 2000-02-04 2001-08-09 Rovema Gmbh Thermoplastics welding equipment for production of tubular bags from plastic film has a heat sealing band on a deformable support

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AT340320B (en) * 1973-08-08 1977-12-12 Altstaedter Verpack Vertrieb SEAL JAW
DE2340557A1 (en) * 1973-08-10 1975-03-06 Altstaedter Verpack Vertrieb DEVICE FOR WET WELDING THERMOPLASTIC MATERIALS
US4079570A (en) * 1977-03-09 1978-03-21 Crown Zellerbach Corporation Quick-change heatseal die for forming easy-open prackages
US5277745A (en) * 1991-11-27 1994-01-11 Reynolds Metals Company Sever and seal bar having interchangeable inserts and blades
DE4318415A1 (en) * 1993-06-03 1994-12-08 Buehler Optima Maschf Welding element for foil sealing
DE19949915A1 (en) * 1999-10-16 2001-04-19 Rovema Gmbh Heat sealing bar for plastic packaging films, has an interchangeable sealing face component
DE10005020A1 (en) * 2000-02-04 2001-08-09 Rovema Gmbh Thermoplastics welding equipment for production of tubular bags from plastic film has a heat sealing band on a deformable support

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011005537A1 (en) * 2011-03-15 2012-09-20 Herrmann Ultraschalltechnik Gmbh & Co. Kg Sealing surface structure for producing a sealed seam
DE102011005537B4 (en) 2011-03-15 2023-04-20 Herrmann Ultraschalltechnik Gmbh & Co. Kg Tool for making a seal seam
IT201700054725A1 (en) * 2017-05-19 2018-11-19 Tsw Ind S R L "FLOWPACK" TYPE PACKAGING MACHINE

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