DE6809029U - Einrichtung zum verschweissen von schrumpffolie aus polyaethylen, insbesondere fuer vorrichtungen zum einwickeln von beladenen paletten mittels folie - Google Patents

Einrichtung zum verschweissen von schrumpffolie aus polyaethylen, insbesondere fuer vorrichtungen zum einwickeln von beladenen paletten mittels folie

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Publication number
DE6809029U
DE6809029U DE6809029U DE6809029U DE6809029U DE 6809029 U DE6809029 U DE 6809029U DE 6809029 U DE6809029 U DE 6809029U DE 6809029 U DE6809029 U DE 6809029U DE 6809029 U DE6809029 U DE 6809029U
Authority
DE
Germany
Prior art keywords
shrink
brackets
film
polyethylene
τοη
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
DE6809029U
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.)
LAESSIG FOERDERTECH HAMBURG
Original Assignee
LAESSIG FOERDERTECH HAMBURG
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 LAESSIG FOERDERTECH HAMBURG filed Critical LAESSIG FOERDERTECH HAMBURG
Publication of DE6809029U publication Critical patent/DE6809029U/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C65/745—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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • 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
    • B29C66/73—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
    • 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
    • B29C66/73715—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 heat-shrinkable
    • 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
    • B29C66/816—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
    • 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
    • B29C66/8224—Chain or sprocket drives
    • 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
    • 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
    • B29C65/38—Impulse heating
    • 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
    • B29C66/80—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
    • B29C66/81422—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 convex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • B29C66/92431—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power the pressure, the force or the mechanical power being kept constant over time
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0049—Heat shrinkable

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Pallets (AREA)

Description

Einrichtung sw YsrsohwelSen tog Sohrtuspffolie au« Polyäthylen, insbesondere für Vorrichtungen sua Einwickeln τοη Beladens» Paletten mittels foil«
Die Brflndung betrifft sin· Sinriehtuag na Yereohweiflen von Sohruapffolie au* Polyäthylen unter Yervendong τοη nrsi gegenl&ttfig angstrisbsnsn SehwsiS-baokenpaaren und einem svisehen ewei 3«)iveilbaeken des einen Paar·· angeordneten Tremuesser» insbesondere für Yorriehtungen itui Sinwiokeln τοη beladensn Paletten mittels Voll·.
Zum Verschweißen τοη Polyethylen-Sohrunpffolien konli Bohweiisystna* Sur mffitmümemg, äSslish. das
und tee Wameinptxlss«awelBen.
taktMlnreifea ist dl· Steuerung 4er
• ·- e e mi *·
Temperatur, insbesondere bei groSen Sohwelflängen, rtoht echwierig, eo da« in gröierem ttafang Am War··· lBpuleeehwelften sur Anwendung gelangt.
Bein Warnelnpulssehweiecn wird dl· fell· duroh swoi SehwelBbaeken b*w, -bander, dl· fcuriMltl« «rhltst w«rd«B( 8tt*ana«ng«pr«0t und aaeh d«a A^lctihlen der 8ohw«tßbandtr nooh Me but Teliigen ÄViiÄlüae der foil· gehalt·» · Daraue «rgll>t eloh «in· T«rriBg«rimg d«r Blek· in d«r 8eb.«ei0nabt τβη 25 auf etwa 0,6 aal 25« Obwohl die SehwelBnaht eeltet der festigkeit der folie gleichwertig let, entetiht direkt neben der SehwelBnaht eine Verdünnung der felle auf 0,6 »ml 5, die der naohfolgenden Belaotvng nelet nleht genügt. Vn dleeen laehtell cu begegnen, werden dickere als notwendigerweise benötigte fellen Terwendet· Beeondere naehtelllg wirkt eleh dleeer fehler bei Sohweii-Torriohtungen für fellen em llnwiekeln tad TereehweiSen ron Paletten aue.
Bei derartigen Slnwiekelrorrlehtuneen für Paletten let am beiden Selten einer franeportbahn, auf der die beladene Palette transportiert wird, eine felienrelle angeordnett τοη der dnreh eine oder nearer· fOhrangerollen laufend die fellen τοη den Seiten kennend «ur Mitte der Srananertbahn lauten und dort eenkreeht rereehwelBt werden· fahrt nan eine Palette duroh
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dlssss ans PsHs gebildete for« ss wird dls folie ab-» gerollt und legt sieh stream un dls Palette, iwei eshwsllbasksn« dls außerhalb dsr fUhrungerollen su beiden Seittn der Traneportbahn angeordnet sind, fahren» naohde» die Palette vollständig eingefahren ist» hinter dlsssr sur Mitte und sishsn dabei dls folie sshr strajm un dls Palettenhlnterkante. Bun werden swel SehwelSn&hte In einem bestlnmtsn Abstand nebeneinander angebracht und anschließend zwiswhen dsn Iahten getrennt. Auf dlsss Wslss sntstsht dls Schweißnaht an dsr Httoksslts dsr Palette und gleichseitig dis Schweißnaht dss Folientore·, dae bein Einlaufen der näshstsn Palette deren Yorderesits bildet« Sa während des Schweißen· eine große Spannung an dsr folie vorhandsn 1st» vsrrlngsrt eich dls follendloke an heißen, jedooh von der 8ehweißbaeke nicht mehr gehaltenen Obergang der Iaht snr folie nooh aehr, da dieser in weichen Suetend gesogen wird.
9er Brflnduag liegt daher die Auf gabs sugmndt» eine Binrlohtung sun Vereohwelßcn von Schrumpffolie aas Polyäthylen, insbsssndSrs für Vorrlehtungsj» sun KInwiokeln von beladenen Paletten nlttsls folie su •chaffen, mittels dsr slns Yeretärkung dsr Sohwoianähte la uweifgaiigstsrelsh ssst felle -üsli« 1st* dsn laehteil dsr Mshrkssten durch dls ferwendung von dlekerer fills au beheben. Hieran wird erfin-
fc §809029
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dvagageaäB ein· Blarle&tuag der eiitganga besohriobentn Art Torgeeohlagen, Al· la der Welee ausgebildet let, dai sub gegenseitigen Anpreeeen der Sohweiebaoken bew. -bänder und Tea eeitlioh «u diesen engeordneten Heltebaeken ein während de· geeaaten Sehwelerorgangee alt einer konstanten Kraft wirkender Stillstandsmotor τοrgesehen 1st· 2a beiden Seiten Bindest«ns eines der Beiden Sehweiebaokenpaare sind unter der Blawiriroag τοη federn stehende, die felle wahrend de· gesamten SohwelBvorgange· In Stellung haltende Haltebacken angeordnet.
Sie Ausbildung der Binrlohtung let darüber hinaus ■o getroffen» dai die beiden SohwelSbaokenpaare aa swel fragerplatten befeetlgt eind, die über fuhmngsarae alt den beiden Kettenetrangen einer altt·!· *ee Stillstandsmotor· angetriebenen endlosen Kette od. dgl· la Verbindung stehen und tob denen die «la· Trägerplatte die seitlieh BU den SohwelBbaeken angeordneten Haltebaoken tragt( wahrend die ander· »rager· platte sjllndrlash· Führungen aufweist( sa deren freien Inden dl· 8ehweißbaeken angesehloesen eind und amf denen federbeaufsehlagte fuhrumgeeehllttea alt den bewegliehen Haltebapken geführt eind. Stur 5s*ehMh?wur Αλτ aehllel- und OffAunfsbeveguncen let der BtUletaadaaeter uapolbar auegebildet. Xaeh den £rrelohen der SehwelAwärae in der felle wird das
Srehaoaent dee Stllletandsaotors verringert, so da0 sieh die SehwelSbaeken etwas Offnen, die folie je* dooh von der Restfederkraft der Halt«backen noch festgehalten wird·
In der Zelohnung 1st ein Ausführungsbelspl^l de· Srfindungelegenetandeβ dargestellt, da· 1st folgen* den beschrieben wirdι
Sie erflndungsgeaäSe Einrichtung uafaSt swel SohwelB-baokenpaare, die sieh gegenüberliegend angeordnet sind und deren Sehwclfibaeken bsw· -bänder alt 10,11, 12,13 beseiehnet sind· Zwisohen den Sehwelfibaoken 10 und 11 läuft ein Kesser 14, ua die alt f gekennselohneten Pollen su trennen· Sie Sohweifibaeken 10,11 sind an einer Trägerplatte 1$ von etwa U-f8rnlgea Profil alt den Seltenflansohen 15a,15b und dta die Planeohealteinander verbindenden Steg 15o befestigt, während die beiden anderen SohweiSbacien 12,13 eben* falls an einer flaehprofilfOraigen Trägerplatte 16
"P befestigt sind, die irlindrlsehe Führungen 17,18 "" trägt, an deren unteren freien Enden eine Terblndungs· platte 19 vorgesehen 1st* Beide Platten 16,19 sind darüber hinaus noch über einen senkrechten Steg aiteinander verbunden«
Zu beiden Selten der SohwelBbaoken 10,11 und 12,13 sind plattenfurnige Haltebaoken 20,21,22,23 angeord-
5.
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net, Ton denen Al· den SohweiBbneken 1O911 rag·« ordneten und parallel iu ditttn rerlaufenden Haltebaoken 20,21 feet alt der Tragerplatte 15 verbunden eind, wahrend dl· beiden anderen Haltebaoken 22,29 en beiden Seiten der Sohweiibaoken 12,13 beweglioh angeordnet «lad« Hlereu aind an den Innenseiten der Haltebaeken 22,23 Sehlitten 24,25 befe- et igt, dl· auf den Pührungeiylindera 17118 τ·γ-eohieblloh geführt eind. Dieae Sehlitten 24,25 «tehen imter der Blnwirirang τοη auf dl· führungeaylinder aufgeeohobenen federn 26,27, aad iwar derart» dafl, wenn dl· Sehweiflbaeken 10 bi» 19 geöffnet werden, dl« Haltebaoken 22,23 aufgrund der I»de*a 26,27 la aiöhVoäg su äs« Haltsbacksn 20,21 be^r^s* -er*es «*»* dl··· beaufiohlag«n.
PUr da· Offnen «ad SohlleBen der 8ohw«lSb*«ken 19 bis 13 etehen dl· mittele Pührungaeehienen geführten Seh-eiebftelrtn-frasei-pliitten 15.16 b«w. 19 alt elnar endloeen Kette 50 oder anderen geeigneten Antriebemitteln la Terbindung, dl· dureh «la*a BtHletaad·«· motor 31 angetrieben wird. Die Kette 50 1st über •in« bei 32 angedeutete Ualenkrolle «ad über eine weiter· Führungsrolle 33 geführt· Si· beiden Kettenetränge «lad alt 30a,30b beseiohnet. Dl« Anordnung der Sohw«iSb*eken-Trägerplatten 15t16 »*"· 19 kann la der la der Zeichnung dargeetellten Weiee erfolgen,
Il · ·
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• ti
• lit
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wonach Alt Trägerplatte 13 alt dee Kettenetrang 301) und dl· Trägerplatte 16 %iw* 19 alt dta Kettenetrang 30« der Kette 30 rerbunden lit» so daß, wenn dl· Kett· 30 Ia Pfeilriehtung X bewegt wird, dl· Sohweiflbaoken 10 VI· 13 geöffnet werden» während bei tlntr Uakthrua« dtr Laufriehtun« dir Xrtt· 30« 1μ1·ρ1·1·- w«l«t dureh Uepolung dt· Stlllitandenoter· 31« dl· btlden 8ohw«lfl%acken-TrÄ«erplatt*n 13 und K bew. »vat Mltt· gefahren
Werden die SohwelBbaeken-Trägerplatten 15 und 1« bftw· 19 but Mitte gefahren, es werden die beiden folien f dabei außerhalb de· Sehweiibereiohe· τοη dm Haltebaeken 20 ble 29 «ret gelcleaat und bei weiteren Sohlieflen τοη den Sehwelßbaeken 10 bi· 13 berührt· luneehr trennt dae Messer U dl· beld«n rollen «wisohen den SohweiBbaoken. Während dl···· Vorgang·· und dem aneohlieiSenden SohwelSlmpule halten dl· beiden Sehweißbaeken-TrEgerplatten 15 und 16 baw. 19 dl· Voll· alt dem geeaaten Dreheoment de· &till»tand*motor· 51 feet· Segle1·η naahdos der Wärmeübergang τοη ί·η BehwelBbaeken 10 bi· 13 auf dl· fell· f Α%4···Αΐ····η let, wilrd das Dreheoment des Stlllstandemotore 31 »ittel· einer geeigneten •lekt rl sehen Sehe! tune rerringert, ireHel eioh die Sehwelfibaoken-Trägerplatteni τοη den federn 26 «27 der Unteren Haltebaoken 22 »23 auirgedrüott, etwa·
öffnen * die Polte f wird aber ron der Restfederkraft der Kaltebaoken nooh festgehalten - und «war •o riel, dafl sieh die beiden Sehweiflnähte ebne Druek und Spannung abkühlen kttnnen» Beta Abkühlen •ohruapft die Polyäthylenfolie und verstärkt die Saht und besonder· den Übergang der naht nur folie, •o daS eine Festigkeit der Iaht erreicht wird« die gleich oder größer ist al· die der feite. laeh dem Abkühle» werden die Schweift- und Haltebaeken duroh Umpolen de· Stillstandsmotor 31 geöffnet und die feite f wird freigegeben·
Jtetefttaasprttehat

Claims (4)

1· Einrichtung sub Yeveoawel8ea tob Sthruapffelit au* iolyäthjrltn unter Terwtndang Υβη ivel gegen* XKmH-S angetriebenen 8«ΐΜτ·ϋ^Α·ΐηιη»Ματ#η und tints ewiethtn «wti Sthwtlfibatktn Att tlntn Paur«· «agtovftAtt·» ϊrennettitr, lnt^ttoadtrt für Vorriohtuagtn im Sinwltktla Ton Vtlft<«ntn VtlttttA altttlt feilt, d»4urth gtktnnstiehntt, AaS vorn gtftnetltletft Aajrttetn dtr 8thwttfl^acktn (10,11, 12,15) WtA TO* ttltlloh su dlteta «ngtordnettn Haltttoaolttn (Ζθ,2ΐ,ζζ,ζ5) tint; währiiia a«e f«iiuttn fehwtlBrorgangat alt tlatr koattanttn Kraft wirktndtr Stllletandeaotor (51) rorgtethtn 1st«
2. BlsrleatuBg aath Aniprueh 1« dadvrth gtktnnetlehaet> AsA su bsidsa Seite» &ia£esteas et«·· de? btldtn StÄWtifl\»aekt»pa»3Pt unter der Blnwirkuag tob federn (2«,27) etekende» die felle (f) wahrend de· geeeatea Bchwe'ererganftt la Stellung naX* tendet vereehlesllen gtfUhrtt Helteeaeken (22,25) engeordnet elad·
Einrichtung naoh Anepruoh 1 und 2, dadurch ge» kennselehnet, dafl di· beiden Sohwei8baekenpaare an «wei Srägerplatten (15,19) befeetigt sind, dlt über rtthrungeame Bit den bilden Kettenetrangen (30a,30b) einer aittele d·· Stillatandamotor« (31) angetriebenen «ndloeen Kette od. dgl· (30) in Terbindun« stehen und τοη denen dl« ein· Trägerplatte (1$) die eeitlleh su den SohweiB-backen (10,11) angeordneten Haltebaekon (20,21) trägt, währen* die andere Trägerplatte (19) »ylindriiehe führungen (17,18) aufweist, an deren freien Baden die SehweiSbaeken (12,13) angeeehleaaen aind und atsf denen federbemufaehlaite Pührungaeohlitten (24,29) alt den beweglichen Saltebaefesa (12913) geführt ein*.
4. SinriehtUKg naeh Aneprueh 1 bis 33 dadurch gekennseivhmet« dat der StUlatandeaetor (31) «a polinar und naeh dta Irreiehen der BehweliwärBe in der Volle in eelnea SrehBoaent Terringerbar auegebildet tat·
DE6809029U 1968-11-28 1968-11-28 Einrichtung zum verschweissen von schrumpffolie aus polyaethylen, insbesondere fuer vorrichtungen zum einwickeln von beladenen paletten mittels folie Expired DE6809029U (de)

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DE19681811460 Pending DE1811460B2 (de) 1968-11-28 1968-11-28 Einrichtung zum verschweissen von schrumpffolien aus thermo plastischem kunststoff insbesondere fuer vorrichtungen zum einwickeln von beladenen paletten mittels folie

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3445524A1 (de) * 1983-12-15 1985-06-27 Orin Benjamin Eden Prairie Minn. Johnston Verfahren und vorrichtung zum verschweissen von kunststoffolien

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3739656A1 (de) * 1987-11-23 1989-06-01 Haas Praezisions Profile Gmbh Vorrichtung zum herstellen einer eckstossverbindung zwischen zwei kunststoffprofilstraengen
MX2017004491A (es) 2014-10-10 2017-06-30 Cryovac Inc Aparato y proceso para el envasado de un producto.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3445524A1 (de) * 1983-12-15 1985-06-27 Orin Benjamin Eden Prairie Minn. Johnston Verfahren und vorrichtung zum verschweissen von kunststoffolien

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