DE1934333U - Schweissvorrichtung zur herstellung von kontinuierlichen schweissnaehten in biaxial verstreckter folie. - Google Patents

Schweissvorrichtung zur herstellung von kontinuierlichen schweissnaehten in biaxial verstreckter folie.

Info

Publication number
DE1934333U
DE1934333U DEK52625U DEK0052625U DE1934333U DE 1934333 U DE1934333 U DE 1934333U DE K52625 U DEK52625 U DE K52625U DE K0052625 U DEK0052625 U DE K0052625U DE 1934333 U DE1934333 U DE 1934333U
Authority
DE
Germany
Prior art keywords
elastic
tool
welding
disc
kalle
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.)
Expired
Application number
DEK52625U
Other languages
English (en)
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.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
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 Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Priority to DEK52625U priority Critical patent/DE1934333U/de
Publication of DE1934333U publication Critical patent/DE1934333U/de
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C66/8161—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 said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/24—Perforating by needles or pins
    • 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
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7435—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc the tool being a roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7437—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc the tool being a perforating 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
    • B29C66/003—Protecting areas of the parts to be joined from overheating
    • 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
    • B29C66/005—Detaching the article from the joining tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73711—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable oriented
    • B29C66/73713—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable oriented bi-axially or multi-axially
    • 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
    • B29C66/8126—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 intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81261—Thermal properties, e.g. thermal conductivity, thermal expansion coefficient
    • 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
    • B29C66/81429—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 comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81457—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a block or layer of deformable material, e.g. sponge, foam, rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8182—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the thermal insulating constructional aspects
    • B29C66/81821—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the thermal insulating constructional aspects of the welding jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—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
    • B29C66/8351—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
    • 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
    • B29C66/8122—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
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/005—Oriented
    • B29K2995/0053—Oriented bi-axially

Landscapes

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

Description

572 231-"30.10.65
KALLE AKTIENGESELLSCHAFT
Firma Unsere Zeichen Tag Blatt
Gbm 269 I1P-Dr.Go-nit . 26.10.65
Beschreibung
zur Anmeldung der
KALLE AKTIEIiGESELLSOHAJ1T
Wiesbaden«Biebrioh
für ein Gebrauchsmuster auf eine .
Schweissvorrichtung zur Herstellung von kontinuierlichen Schweissnähten in biaxial verstreckter Folie
Die Neuerung bezieht sich auf eine Schweissvorrichtung zur Herstellung von kontinuierlichen Schweissnähten mit einem beheizten Schweisswerkzeug zur Verbindung von zwei oder mehreren Folienlagen. ■
Es.ist seit langem üblich, zum Verpacken von Verbrauchsgütern, beispielsweise Lebensmitteln, Folien aus thermoplastischen Kunststoffen zu benutzen. Die Verwendung der Kunststoffolien erfolgt meist derart, dass das zu ver=» packende Gut in einem aus einer Flachfolie gebildeten Schlauch eingeschlagen wird, dessen Längsnaht dann durch eine Schweissnaht verschlossen wird.. Vielfach werden für diesen Zweck auch aus Flachfolienbahnen kontinuierlich Schläuche geformt und durch eine Längsschweissnaht verschlossen* Von dem erhaltenen endlosen Sehlauch werden dann die zur
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Herstellung der einzelnen Verpackung "benötigten Stücke abgeschnitten. Die vorerwähnte Verpackungsart findet bevorzugt Anwendung bei der Herstellung sogenannter Schrumpfpackungen 9 d.h. bei solchen, bei denen das Verpackungsgut verhältnis«= massig lose mit einer Kunststoffolie umgeben wird, die dann durch eine nachfolgende Hitzebehandlung zum engen.Anliegen an das Verpackungsgut, gebracht wird,..
Bisher wurden Schläuche aus Ilachfolien in der Weise hergestellt, dass man die flache Folienbahn zu einem Schlauch faltete und die gegeneinander liegenden Enden mittels einer Trennschw.eissung verband. Der lachteil dieses Verfahrens besteht darin, dass., um diese Schweissart über" haupt erst zu ermöglichen, die Schweissnaht etwa 1 cm von der Aussenkante der den Schlauch bildenden Rollenbahn durch» geführt werden muss. Dies hat zur folge, dass zwei 1 cm breite Folienstreifen als Abfall anfallen, der aus der Maschine . herausgeführt werden muss. Dies ist ie-ä-et-ea? sehr umständlich und .gibt vielfach Anlass zu Störungen, des Maschinenablaufs* Ein weiterer wesentlicher Nachteil des bekannten Verfahrens besteht darin, dass die bei der Schweissung erfolgende Wärmezufuhr nicht unmittelbar auf die Schweissnaht begrenzt bleibt, sondern dass auch die nähere, Umgebung der Schweissnaht erheblicher Wärmeeinwirkung ausgesetzt ist. Das führt bei der Verarbeitung von verstreckten Folien, wie sie bei der Her«
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stellung von Schrumpf packungen stets verwendet werden,: dazu, dass die.Folien in der Umgebung der Fant stark desorientiert werden, was einen wesentlichen-Verlust.an-Festigkeit mit sich bringt. .
Man hat auch "bereits vorgeschlagen, die Herstellung einer Längsschweissnaht an einer zum Schlauch gefalteten Folienbahn durch Impuls "bzw. Wärmekontaktschweissung herzu·™. stellen, jedoch führt auch dieser Weg nicht zu "befriedigenden Ergebnissen, da die verstreckten Folien die leigung haben, an' den "beheizten Werkzeugen kleben zu bleiben, wenn diese wieder von den zu verschweissenden Folienlagen weggeführt werden. Das hat zur Folge, dass die S-chweissnaht bereits vor ihrer Entstehung wieder gelöst wird, ."."■■■-
Aufgabe der Feuerung ist es, eine Vorrichtung vorzusehen, die die kontinuierliche Ausführung einer Längs« schweissnaht an einer zu einem Schlauch gefalteten Folienbahn gestattet, ohne dass Abfall entsteht. Gleichzeitig soll die Wärmezufuhr zu den zu verschweissenden Folienlagen in der Weise durchgeführt werden,, dass sie unmittelbar auf den Ort der auszuführenden Schweissung beschränkt bleibt* wodurch eine unerwünschte Desorientierung der Folie verhindert wird, - .
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Gegenstand der Neuerung ist eine Vorrichtung zur Herstellung von kontinuierlichen Schweissnähten in "biaxial verstreckter Polie. Die erfindungsgemässe Schweissvor« richtung "besteht aus einer beheizbaren Scheibe, die an einem schwenkbaren Hebel drehbar gelagert ist und einer elastischen Andruckvorrichtungj und ist dadurch gekennzeichnet, dass die als Schweisswerkzeug dienende Scheibe auf beiden Seiten mit einem elastischen wärmeisolierenden Material belegt ist,, das nicht mit den zu verarbeitenden folien verschweissbar ist-,, wobei der Belag mindestens die gleiche Grosse besitzt wie das scheibenförmige Schweisswerkzeug» Eine bessere Wirkung wird jedoch mit der erfindungsgemässen Vorrichtung erzielt, wenn das elastische Wärmeisoliermaterial etwas über den Rand des Schweisswerkzeuges übersteht»
Das scheibenförmige Schweisswerkzeug kann zur Aus« führung von kontinuierlichen Schweissnähten einen glatten Rand besitzen» Vorzugsweise sind jedoch auf dem Rand des scheibenförmigen Schweisswerkzeuges Höcker"oder Stifte- radial angeordnet, so dass beim Abrollen des scheibenförmigen Schweisswerkzeuges auf der zu verschweissenden Unterlage eine Reihe von Schweisspunkten entsteht. Bei der zuletzt ge« nannten Ausführungsform des scheibenförmigen Schweiss.werk« zeuges mit Höckern bzw. Stiften am Rand wird in vorteilhafter Weise auch der Zwischenraum zwischen den- einzelnen Höckern
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oder Stiften mit isolierendem, elastischem Material ans« gefüllt.
Als elastisches isolierendes Material, das.nicht mit der zu versohweissenden Folie verschweissbar ist, dient vorzugsweise Polytetrafluoräthylen oder.Silikongummi.
Eine vorteilhafte Ausführungsform der erfindüngsgemässen Vorrichtung wird im folgenden unter Bezugnahme auf die beigefügten Zeichnungen näher erläutert:- Es zeigen Fig. 1 eine Seitenansicht des erfindungsgemässen . Schweisswerkzeuges und ... " ,
Fig. 2 einen Querschnitt durch das erfindungsgemässe Schweisswerkzeug» - .'
Das im Punkt 0 drehbare scheibenförmige Schweiss«*» werkzeug 1 ist über einen -üebel 2 im Punkt A schwenkbar gelagert. Das Schweisswerkzeug 1 ist gleichzeitig mit einer . Lage aus elastisch verformbarem? wärmeisolierendem Material 3 abgedekktj das etwas über den ausseren Rand des Schweisswerkzeuges 1 übersteht» Eine am Hebel 2 angebrachte Feder 4 sorgt dafür, dass das mit dem elastischen wärmeisolierenden Material 3 belegte Werkzeug 1 ständig an die auf der Unterlage. 5 befindlichen beiden Folienlagen 6 angedrückt wird. Am äusseren Band des Werkzeuges 1 sind Höcker bzw. Stifte 7 vorgesehen, die bei der unter dem Druck der. Feder 4 erfolgender
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Verformung des elastischen Materials 3 aus diesem hervortreten und auf die zu verschweissenden Folienlagen einwirken. Beim Fortbewegen der Folienbahn 6 in Pfeilrichtung roll-te das erfindungsgemässe Schweisswerkzeug auf den Folienlagen 6 und der Unterlage 5 ab> wobei die Höcker bzw» die Stifte in die zu verschweissenden Lagen 6 eintauchen und Schweiss« punkte 8.erzeugen» Vorteilhaft ist auch die Stirnseite des erfindungsgemässen Schweisswerkzeuges mit elastischem, wärmeisolierendem Material belegt» Es sind lediglich Öffnungen zum Durchtritt der Höcker bzw. StIfte.7 freigelassen, .."■". .'■■;■-■
Der Hebel 2 kann als Gabel ausgeführt sein,, in der das Schweisswerkzeug 1 samt der beidseitigen wärmeisolierenden Beschichtung drehbar gelagert ist. Es kann jedoch ebenso ein Schenkel der Gabel fortgelassen und das Werkzeug 1 nur einseitig am Hebel 2 befestigt werden* Die Wärmezufuhr zur Heizung des Werkzeuges kann in bekannter Weise, beispiels~ weise durch elektrische Widerstandsheizung erfolgen* Eine entsprechende Vorrichtung ist aus Gründen der besseren Übersicht in den beigefügten Zeichnungen nicht dargestellt. .
Die neuerungsgemässe Vorrichtung ermöglicht es, zum Schlauch gefaltete Folienbahnen, insbesondere aus orientiertem Material durch eine längsnaht zu verschweissen, ohne dass die der Schweissnaht benachbarten Bereiche der Folie durch uner-
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wünschte Wärmeeinwirkung desorientiert und damit in ihrer festigkeit beeinträchtigt werden und ohne dass, wie "bei herkömmlichen Vorrichtungen, Abfall entsteht» Die neuerungs— gemässe Vorrichtung ist besonders geeignet zur Anfertigung von Schläuchen, die zur Herstellung von Schrumpfpackungen. Verwendung finden, sollen« Der besondere Vorteiljder heuerungS" gemässen Vorrichtung liegt darin, dass die Schweissung -unter Druck bei gleichzeitiger Begrenzung der Wärmeeinflusszone durch die die Schweisselemente umgebende Isolation vor sich geht, was insbesondere für die-Schweissnahtfestigkeit ver«* streckter Kunststoffolien von Bedeutung ist. Die neuerungs™ gemässe Vorrichtung ermöglicht ausserdem ein kontinuierliches Arbeiten.
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Claims (5)

M572 231*30.10.65 KALLE AKTIENGESELLSCHAFT Flrma Unsere Zeichen Tag Blatt G"bm 269 I1P-Dr. G-o-mt 26.10.6-5 Q S c hut ζ aus ρ r ü c he
1. Schweissvorrichtung zur Herstellung τοπ kontinuierlichen. S chwe issnäht en, "bestehend aus einer beheizbaren Scheibe, die.drehbar gelagert ist, derart, dass sie auf einer Unterlage abrollen kann und in einer elastischen Andruckvorrichtung, dadurch gekennzeichnet, dass die als Schweisswerkzeug dienende Scheibe (I)-auf beiden Seiten.· mit einem elastischen, wärmeisolierenden Material (3) belegt ist, das nicht mit den zu verarbeitenden Folien verschweissbar ist, wobei der Belag mindestens die gleiche Grosse besitzt wie das scheibenförmige Schweiss«· werkzeug. .. . -
2, Vorrichtung und Anspruch 2, dadurch gekennzeichnet, dass das elastische Wärmeisoliermaterial (3). etwas über den Rand des. Sohweis.swerkzeug.es übersteht.
3« Vorrichtung nach Anspruch 2. und 3, dadurch gekennzeichnet, dass auf dem Rand des scheibenförmigen Sehweiss« Werkzeuges (l) Hocker oder Stifte (7) radial angeordnet sind, die als die eigentlichen Schweisswerkzeuge dienen.
4. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass auch die Zwischenräume zwischen den einzelnen Höckern oder Stiften mit isolierendem elastischem Material "ausgefüllt sind.
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5. Vorrichtung nach. Anspruch 2 - 5, dadurch gekennzeichnet, dass als elastisches wärmeisolierendes Material Polytetrafluoräthylen oder Silikongummi..
verwendet wird. . . ■ . .
KALlE AKTIElTGESELLSOHAi1T
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DEK52625U 1965-10-30 1965-10-30 Schweissvorrichtung zur herstellung von kontinuierlichen schweissnaehten in biaxial verstreckter folie. Expired DE1934333U (de)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001053586A1 (en) * 2000-01-19 2001-07-26 Uni-Charm Corporation Heat-sealing method and apparatus for fiber sheets

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001053586A1 (en) * 2000-01-19 2001-07-26 Uni-Charm Corporation Heat-sealing method and apparatus for fiber sheets

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