DE8634962U1 - Kunststoffolienbahn - Google Patents

Kunststoffolienbahn

Info

Publication number
DE8634962U1
DE8634962U1 DE8634962U DE8634962U DE8634962U1 DE 8634962 U1 DE8634962 U1 DE 8634962U1 DE 8634962 U DE8634962 U DE 8634962U DE 8634962 U DE8634962 U DE 8634962U DE 8634962 U1 DE8634962 U1 DE 8634962U1
Authority
DE
Germany
Prior art keywords
plastic film
film web
blank
plastic
welded
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
DE8634962U
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.)
Alkor GmbH Kunstoffverkauf
Original Assignee
Alkor GmbH Kunstoffverkauf
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 Alkor GmbH Kunstoffverkauf filed Critical Alkor GmbH Kunstoffverkauf
Priority to DE8634962U priority Critical patent/DE8634962U1/de
Priority claimed from DE8605380U external-priority patent/DE8605380U1/de
Priority to DE3703394A priority patent/DE3703394C3/de
Priority claimed from DE3703394A external-priority patent/DE3703394C3/de
Priority claimed from DE8705710U external-priority patent/DE8705710U1/de
Priority claimed from DE8705720U external-priority patent/DE8705720U1/de
Publication of DE8634962U1 publication Critical patent/DE8634962U1/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • G01B5/16—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures between a succession of regularly spaced objects or regularly spaced apertures
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7861—In-line machines, i.e. feeding, joining and discharging are in one production line
    • B29C65/787—In-line machines, i.e. feeding, joining and discharging are in one production line using conveyor belts or conveyor chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
    • B29C66/0042—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined
    • B29C66/0044—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined using a separating sheet, e.g. fixed on the joining tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • 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
    • B29C66/731—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 intensive physical properties of the material of the parts to be joined
    • B29C66/7315—Mechanical properties
    • B29C66/73151—Hardness
    • B29C66/73152—Hardness of different hardness, i.e. the hardness of one of the parts to be joined being different from the hardness of the other part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • 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
    • 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
    • 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
    • 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
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/002—Coloured
    • 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
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0026—Transparent
    • 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
    • B29K2995/007—Hardness

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Description

* m r ·
Die vorliegende Erfindung betrifft eine Kunststofffolienbahn und/oder -zuschnitt aus vorzugsweise flächig aufeinanderliegenden Kunststoffolien, -bahnen und/oder -zuschnitten, die an mindestens einem Rand, vorzugsweise an mehreren Rändern miteinander verschweißt sind und aus Olefinhomo-, -co-, -terpolymerisaten und/oder Polyolefinlegierungen zu mehr als 50 Gew.-i, vorzugsweise mehr als 70 Gew.-%,bestehen oder diese enthalten und daraus hergestellte Hülle, Verpackung und ähnlicher Kunststoffartikel.
Das Verschweißen von Kunststoffolien, die vor dem Verschweißen in flächige Anlage gebracht werden, ist bereits bekannt. Bestimmte Kunststoffolien, &zgr;. &Bgr;. solche aus oder unter Mitverwendung von Polyolefinen (Polypropylen, Polyethylen und dgl.) sowie anderen Kunststoffen sir.d jedoch problematisch, da bei oder nach dem Schweißvorgang Störungen, z. B. Verwellungen des Materials neben den Scheißnähten, Verwerfungen, Schrumpfungen, Fehlerstellen und dgl. auftreten.
Es sind bereits Verfahren bekannt, bei denen die PoIymerfoiien vor dem Verschweißvorgang einer Vorbehandlung, &zgr;. B. einer Temperung (vgl. DE-PS 26 30 817) unterworfen werden.
Nachteilig ist jedoch, daß bei bestimmten Kunststofffolienbahnen, je nach Art des Kunststoffes, Schwierigkeiten bei dem Verschweißen oder bei dem Schweißgut auftreten, insbesondere unsichere Schweißnähte entstehen, nur eine geradlinige Verschweißung möglich ist,
das Heißband verklebt oder sich zu stark abnutzt oder keine L=, bogen-, oder U-förmigen und dgl, Trennähte zu erzielen sind.
Ziel und Aufgabe der vorliegenden Erfindung war es, diese Nachteile zu vermeiden und eine Kunststoffolienbahn und/oder -zuschnitt aus vorzugsweise flächig aufeinanderliegenden Kunststoffolien, -bahnen und/oder -zuschnitten, die an mindestens einem Rand, vorzugsweise an mehreren Rändern miteinander verschweißt sind und aus Olefinhorao-, -co-, -terpolymerisaten und/oder Polyolefinlegierungen zu mehr als 50 Gew.-&iacgr;, vorzugsweise mehr als 70 Gew.-&iacgr;, bestehe/, oder diese enthalten, zu finden, die vorteilhafter ist. Sie sollte sichere Trennähte aufweisen. Die Form der Schweißnähte sollte von der geradlinigen Schweißnahtf.orm abweichen können und insbesondere L-, bogen-, U-förmig oder raehreckig sein. Die Schweißnaht sollte ästhetisch wirkende Profilierungen aufweisen.
Erfindungsgemäß wurde festgestellt, daß diesen Zielen und Aufgaben eine Kunststoffolienbahn und/oder -zuschnitt aus vorzugsweise flächig aufeinanderliegenden Kunststoffolien, -bahnen und/oder -zuschnitten gerecht wird, die mindestens einen Rand, vorzugsweise mehrere Ränder aufweist, der bzw. dia trennaht- und wärmekontaktverschweißt ist bzw. sind . Die Kunststoffolienbahnen und/oder -zuschnitte besitzen unterschiedliche Härten, wobei der Härteunterschied zwischen einer Ober- und Unterfolienbahn und/oder -zuschnitt 5-20 Shore D, vorzugsweise 8-16 Shore D, beträgt.
Die verschweißten Ränder weisen erfindungsgemäß eine oder mehrere Profilierungen, vorzugsweise Längs-,
Quer- und/oder Nahtstichprofilierungen oder Bördelkantenprofilierungen, auf. Es gelingt dadurch, schön verzierte Schweißender bei den verschweißten Kunststoffartikeln zu erhalten, die z. B. eine Längs-, Quer- und/oder Nahtstichprofilierung oder andere Profilierungen besitzen. Eine Kunststoffolienbahn oder ein -zuschnitt ist dabei vorzugsweise opak oder farbstoff- bzw. farbpigmeriuhaiLig und eine ändere KUnatatoffolienbahn oder ein anderer -zuschnitt transparent.
Die flächig aufeinanderliegenden Kunststoff- folien, -bahnen und/oder -zuschnitte werden mittels einer Schweißpresse, deren Schweißelektrode eine spitze Schneidkante mit einem abgeschrägten, vorzugsweise gegenüber der Schneidkante zurückspringend angeordneten Schweißprofil aufweist, trennahtverschweißt, wobei die trennahtverschweißten materialvsrdünnten Stellen oder Linien, über die das Folienabfallgitter mit dem Kunststoffartikel zunächst noch in Verbindung steht, 3 - 25 %, vorzugsweise 4 - 20 %, der Gesamtdicke der flächig aufeinanderliegenden Kunststoffolien, -bahnen und/oder -zuschnitte beträgt. Der Transport der Kunststoffolien, -bahnen und/oder -zuschnitte in der und durch die Schweißpresse wird mittels eines Transportbandes durchgeführt und/oder die Trennahtwärmekontaktverschweißung erfolgt in Gegenwart des über der beheizten Gegenelektrode angeordneten oder gelagerten Kunststofftransportbandes (auf dem die flächig übereinanderliegenden Kunststoffolien-, -bahnen und/oder -zuschnitte angeordnet sind).
Es können einerseits opake oder gefärbte Kunststofffolien, -bahnen oder -zuschnitte, andererseits transparente Kunststoffolien, -bahnen oder -zuschnitte
eingesetzt. Der D-Shore-Bereich der einen Kunststoff- $ folie, -bahn oder des -Zuschnittes beträgt bei diesem
;· bevorzugten Ausführungsbeispiel 40 +/- 11, vorzugswei-
■! Be 42 +/- 4, der D-Shore-Bereich der anderen Kunst-
■; . stoffolie, -bahn oder des -Zuschnittes D-Shore 60 +/-
8, vorzugsweise 60 +/- 3» jedoch unter Einhaltung
&Igr; eines Härteunterschiedes von 5-20 Shore-D, vorzugs
weise 8-16 Shore-D. Als Folien werden Polyolefinfolien und/oder polypropylen- und/oder polyethylenhaltige Folien eingesetzt. Als transparente Folien werden bevorzugt solche verwendet, die gleitmittelfrei sind.
• · + 4
·· · fc
In Fig. 1 und 2 ist ein vertikaler Schnitt durch die Schweißelektrode der Schweißpresse schematisch dargestellt. Die vertikal angeordnete Schweißelektrode 1 ist mit der spitzen oder messerähnlichen Schweißkante ?. versehen, die einen Sahnoid-Schweißvorgang durchführt. An der Schweißelektrode befindet 3ich weiterhin das gegenüber der Schneidkante zurückspringend angeordnete, mit einer Stufe versehene Schweißprufii 3» dessen Fläche vorzugsweise parallsl oder annähernd parallel zur Kunststoffolienbahn und/oder zum Transportband und/oder zur Fläche der Gegenelektrode 5 ist.
Das Schweißprofil besitzt bevorzugt Kerbungen, Riffelungen oder andere Profilierungen. Auf der Kunststofffolienbahn 7 ist ein Kunststoffolienzuschnitt oder -zuschnitteil 6 angeordnet. An der Schweißelektrode 1 befindet sich die nutähnxiche Vertiefung U, in die bei dem Schweißvorgang etwas Kunsttoffmaterial des Randteiles zeitweise gedrückt wird.
In Fig 2 ist zusätzlich das Transportband 8 schematisch dargestellt.
In Fig. 3 ist ein Schnitt durch die verschweißten Kunststoffolienbahnen 7 und/oder -zuschnitte 6 dargestellt.

Claims (1)

  1. Schutzansprüche
    Kunststoffolienbahn und/oder -zuschnitt aus vorzugsweise flächig aufeinanderliegenden Kunststofffolien, -bahnen und/oder -zuschnitten, die an mindestens einem Rand, vorzugsweise an mehreren Rändern miteinander verschweißt sind und aus Olefinhomo-, -co-, -terpolymerisaten und/oder Polyolefinlegierungen zu mehr als 50 Gew.-&iacgr;, vorzugsweise mehr als 70 Gew.-%, bestehen oder diese enthalten und daraus hergestellte Hülle, Verpackung und ähnliche Kunststoffartikel, dadurch gekennzeichnet, daß mindestens ein Rand, vorzugsweise mehrere Ränder der Kunststoffolienbahnen trennaht- und wärmekontsktve"schweißt ist und die Kunststoffolienbahnen und/oder -zuschnitte unterschiedliche Härten aufweisen, wobei der Härteunterschied zwischen einer Ober- und Unterfolienbahn und/oder -zuschnitt
    5-20 Shore D, vorzugsweise 8-16 Shore D,
    beträgt.
    Verschweißte Kunststoffolienbahn und/oder -zuschnitt nach Anspruch 1, dadurch gekennzeichnet, daß der verschweißte Rand eine oder mehrere Profilierungsn, vorzugsweise Längs-, Quer- und/oder Nahtstichprofilierungen oder Bördelkantenprofilierungen, aufweist und daß eine Kunststoffolienbahn oder ein -zuschnitt opak oder farbstoff- bzw. farbpigmenthaltig ist und eine andere Kunststoffolienbahn oder ein anderer -zuschnitt transparent ist.
DE8634962U 1986-02-28 1986-02-28 Kunststoffolienbahn Expired DE8634962U1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8634962U DE8634962U1 (de) 1986-02-28 1986-02-28 Kunststoffolienbahn
DE3703394A DE3703394C3 (de) 1986-02-28 1987-02-05 Verfahren und Vorrichtung zum Verschweißen von flächig aufeinanderliegenden Kunststoffolien, -bahnen und/oder -zuschnitten

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE3606485 1986-02-28
DE8634962U DE8634962U1 (de) 1986-02-28 1986-02-28 Kunststoffolienbahn
DE8605380U DE8605380U1 (de) 1986-02-28 1986-02-28 Vorrichtung zum Verschweißen von flächig aufeinanderliegenden Kunststoffolien, -bahnen und/oder -zuschnitten
DE3703394A DE3703394C3 (de) 1986-02-28 1987-02-05 Verfahren und Vorrichtung zum Verschweißen von flächig aufeinanderliegenden Kunststoffolien, -bahnen und/oder -zuschnitten
DE8705710U DE8705710U1 (de) 1987-04-18 1987-04-18 Mit einer beheizten Kontaktfläche ausgestattete Vorrichtung zum Verschweißen von Kunststoffolien, -bahnen und/oder -zuschnitten
DE8705720U DE8705720U1 (de) 1986-02-28 1987-04-18 Zähnungsschlüssel

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DE8634962U1 true DE8634962U1 (de) 1987-11-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0333973A2 (de) * 1988-03-23 1989-09-27 Alkor GmbH Kunststoffe Verfahren zum Verschweissen von flächig aufeinanderliegenden Kunststoffolien
DE3914328A1 (de) * 1989-04-29 1990-10-31 Alkor Gmbh Mit mindestens einer koextrudierten und nichtorientierten kunststoffolie oder kunststoffolienbahn beidseitig versehener, umschlossener oder beschichteter pappenzuschnitt

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0333973A2 (de) * 1988-03-23 1989-09-27 Alkor GmbH Kunststoffe Verfahren zum Verschweissen von flächig aufeinanderliegenden Kunststoffolien
EP0333973A3 (de) * 1988-03-23 1993-08-18 Alkor GmbH Kunststoffe Verfahren zum Verschweissen von flächig aufeinanderliegenden Kunststoffolien
DE3914328A1 (de) * 1989-04-29 1990-10-31 Alkor Gmbh Mit mindestens einer koextrudierten und nichtorientierten kunststoffolie oder kunststoffolienbahn beidseitig versehener, umschlossener oder beschichteter pappenzuschnitt

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