DE1886319U - DEVICE FOR HEAT SEALING THERMOPLASTICS UNDER PRESSURE AND HEAT. - Google Patents

DEVICE FOR HEAT SEALING THERMOPLASTICS UNDER PRESSURE AND HEAT.

Info

Publication number
DE1886319U
DE1886319U DEE18075U DEE0018075U DE1886319U DE 1886319 U DE1886319 U DE 1886319U DE E18075 U DEE18075 U DE E18075U DE E0018075 U DEE0018075 U DE E0018075U DE 1886319 U DE1886319 U DE 1886319U
Authority
DE
Germany
Prior art keywords
sealing
heat
sealing point
conveyor belts
sealed
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
DEE18075U
Other languages
German (de)
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of DE1886319U publication Critical patent/DE1886319U/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • 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
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/328—Leaving the burrs unchanged for providing particular properties to the joint, e.g. as decorative effect
    • B29C66/3282—Leaving the burrs unchanged for providing particular properties to the joint, e.g. as decorative effect for reinforcing the joint
    • 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
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—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
    • B29C66/81463—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 plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B29C66/81465—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 plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed behind the other in a single row in the feed direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83421—Roller, cylinder or drum types; Band or belt types; Ball types band or belt types
    • B29C66/83423—Roller, cylinder or drum types; Band or belt types; Ball types band or belt types cooperating bands or belts
    • 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
    • B29C66/0046—Preventing sticking together, e.g. of some areas of the parts to be joined by the use of a lubricant, e.g. fluid, powder
    • B29C66/00461—Preventing sticking together, e.g. of some areas of the parts to be joined by the use of a lubricant, e.g. fluid, powder being liquid, e.g. oil based
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29K2021/00—Use of unspecified rubbers 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
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/18—Polymers of hydrocarbons having four or more carbon atoms, e.g. polymers of butylene, e.g. PB, i.e. polybutylene
    • B29K2023/22—Copolymers of isobutene, e.g. butyl rubber
    • 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
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds 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
    • B29K2027/00—Use of polyvinylhalogenides 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • 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
    • B29K2031/00—Use of polyvinylesters or derivatives thereof as moulding material
    • B29K2031/04—Polymers of vinyl acetate, e.g. PVAc, i.e. polyvinyl acetate
    • 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
    • B29K2067/00—Use of polyesters 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
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0085—Copolymers
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0088—Blends of polymers

Description

Die Erfindung betrifft das Siegeln vöb- Sherraoplasten und. Insbesondere das Helssiegela tobThe invention relates to sealing vöb sherra plastics and. In particular the Helssiegela tob

Bei den.herkömmlichen Ferfalirea &&ia .Heißsiegeln "wi^d" das '" Polieaausggugsmaterial be-naoh'bait ή®τ Siegeistelle - geschwächt, Ss^ reisst bei Belastung in jedem Falle iae τ st aar Haaöe äet ■. Siegelstelle,. Bei diesen HeisefegeliiHg@E-..wird somit die Festigkeit- des luagaagsaaterials Mc:htWith the .conventional Ferfalirea && ia. Hot seals "wi ^ d" the '"Poliausgugugsmaterial be-naoh'bait ή®τ Siegeistelle - weakened, Ss ^ tears under load in every case iae τ st aar Haaöe aet ■. Sealing point , . With these HeisefegeliiHg @ E - .. is thus the strength of the luagaagsaaterials Mc : ht

Diese Unrenoge (Beschreibung und Schul2onspi.) lsi. die zuletel elflgarefcfife, sfe ft'efchf *on tier »art· wspiöngfteh »inggreJchten Unferiogen ab. Die rechHiche Bsdeuiung <fer Afawicii«ng isf i«j* [M «fspröngHch ©ingeran'chlen Unfiwlagen befinden ι ich in den Amfsokfeft. Ste köftn* A-j(site«*{t Oft«* β*»«*» fswhtliciwit Inföfesses gebührenfrei eingesehen werden. Atif Antrag'werden hiat'von oucis f*tokvp*t) *ap- * zu ^tS? öMichis* Preisen .geliefert Deutsches Pol*nrömt.This Unrenoge (description and Schul2onspi.) Lsi. the zuetel elflgarefcfife, sfe ft'efchf * on tier »art · wspiöngfteh» inggreJchten Unferiogen. The legal information about Afawicii "ng isf i" j * [M "fspröngHch © ingeran'chlen disputes are i in the Amfokfeft. Ste köftn * Aj (site «* {t Oft« * β * »« * »fswhtliciwit Inföfesses can be viewed free of charge. Atif application'will hiat'von oucis f * tokvp * t) * ap- * to ^ tS? öMichis * prices .delivered German Pole * nrömt.

Die bekannten Heissiege!verfahren gehorea drei-Kategorien .aa» Bei der ersten-. Kategosie werden swei beheizte- Backen 'zusammes= gepresst, zwisehea denen.sieh die Folienlagen befinden«, Die' Wärme bringt das Polienmaterial isum Schmelzern, und unter der Wirkung des Druckes .verschmelzen die Lagen miteinander» Durch den von den Backen ausgeübten !Druck wird auch etwas geschmolzenes Material herausgequetscht, wodurch ..sich die Folie beidseitig der Siegelstelle von dis se? ""-wegbewegt, so dass nach dem Erstarren die foliendicke am Band der Siegel=, stelle verringert-ist. '" . „ ' . '- ."The well-known Heissiege! Procedure belongs to three categories .aa »With the first-. Category are two heated jaws 'pressed together = between them, where the film layers are located,' The 'heat causes the polishing material to melt, and under the effect of the pressure, the layers melt together.' The pressure exerted by the jaws also squeezed out some molten material, whereby .. the film on both sides of the sealing point of this? "" - moved away, so that after solidification the film thickness on the tape of the seal =, place - is reduced. '"."'. '-. "

Bei der zweiten Verfahrensart, dem Impulsheiss-iegelEü, werden ein oder zwei Siegelbänder durch gepolsterte, unb©h©izt@ '' Backen gegen die· Poli-enlagen gedruckte Den Jleizbändern wird dann Strom zugeführt, wobei die -Folie-'schmilzt und durch den von den Backen: ausgeübtes Druc'c" die Polienlagen miteinander .verschmelzenο Dabei werden die gleichen Waeh-·. teile wie beim Heissiegeln mit beheizten Backen erhalten;." wiederum wird die Foliendicke am Rand des Siegelstelle verringert und die Festigkeit der Siegelung herabgesetzt»In the second type of process, the impulse hot seal, one or two sealing tapes are printed by padded, unb © h © izt @ '' jaws against the polish layers The pressure exerted by the cheeks "melt the polien layers together. The same parts are obtained as with heat sealing with heated jaws." in turn, the film thickness is reduced at the edge of the sealing point and the strength of the seal is reduced »

Bei dem dritten Verfahren sty p, handelt es sich'um eine, kontinuierliche He'issiegelung, bei welcher zwtii, von'Rollen; ange=»' triebene endlose Bänder von ortsfesten, beheizten" Backen gegen die Folienlagen aneinander gedrückt'-werden.«. Wiederum.The third method, sty p, is a, continuous heat sealing, in which two, von'roll; ange = »' driven endless belts of stationary, heated "jaws pressed against each other against the film layers. «. In turn.

ergeben sich mehr oder -weniges? die gleichen laciiteile wie oben. Die Menge des- von den Bändern herausgequetschten, ■ flüssigen Folienmaterials ist zwar nicht so gross., afoei - " dennoch tritt eine gewisse Qüetsehwirkung und: ein© Schwächung der Folie benachbart der Siegelstell©- ein«." Während der Abkühlung werden die Folienlagen mit der ge schmölze ilen ■ Siegelstelle zwar durch die Bänder unterstützt, aber dies geschieht nicht 'zwangsläufig.» so dass ein® gewisse ?©r=> formung der Siegelstelle erfolgte Die ferformung.ist bei einem vertikalen He.issiegelvorgang besonders betonteis there more or less? the same lacii parts as above. The amount of the- squeezed out by the ligaments, ■ liquid film material is not that big., afoei - "nevertheless there is a certain Qüetsehffekt and: a © weakening the film adjacent to the sealing position © - a «." During the The layers of film with the The sealing point is supported by the tapes, but this does not 'inevitably happen. " so that a® certain? © r => The sealing point was formed particularly emphasized a vertical heat sealing process

Die Erfindung "beseitigt diese Mängel., und Schwierigkeiten und ermöglicht es, die Dicke·des Folienmaterials am Band® jäer Siegelstelle aufreehtauerhaltea, so dass die tierende festigkeit-diejenige des ■ Ausgangsmaterials-unterschreitet» Sie ermögliolit es weiter» -die Diske am Hände der Siegelstelle -zu lenken·"■ derart9 :dass die Festig« keit der "Siegelung gegenüber derjenigep äes Ausgange-. . materials erhöht werden 'kann, Dabei" lässt sieh, die ζ,ητ Herstellung einer .zufriedenstelleHi'deii'S'isgelung "er-forder« liehe Zeit .verkürzen-und. können" weiter aa sich b-ekannte ■ Heizelemente/zur Herstellung der Heissi editing he.rang©= sogen werden οThe invention "eliminates these shortcomings and difficulties and makes it possible to keep the thickness of the film material on the tape® at the sealing point unopened, so that the strength - that of the starting material - falls below it» Sealing point -to direct · "■ in such a way 9: that the strength of the" sealing compared to the respective output material can be increased. In doing so, you can see that the ζ, ητ production of a "satisfactory he'deii'S'isgelung" he -required. shorten the time-and. can. further aa known ■ heating elements / for the production of the hot editing he.rang © = be absorbed ο

FO-17 ■ ·"■■■·■ ..'■■' FO-17 ■ · "■■■ · ■ .. '■■'

Hauptmerkmal der lrfiadting ist der Einsatz eine bandes oder you Förderbändern eis- oder o© id se it ig· eiea zusiegelnden Materials, um dieses fjähread ä©s Siegelungsvor-gangs starr au halten» " . .The main feature of lrfiadting is the use one band or you conveyor belts ice or o © id se it ig · eiea to seal Material to ensure this five-year sealing process hold rigidly out »"..

■Die Erfindung ermöglicht* ®s,, einwandfrei ·verwendbar© Siege·= langen zu erzielen, welche mit den gegenwärtig zur Verfügung stehenden Mitteln als nur auss@rordentli-2h schwer erreichbar gelten ο Beispielsweise wurden Siegelunge:n mit mehr fachen Folienlage-n'mit** ausgezeichneten Ergebnissen hergestellte Ferner ist es möglich, einen Beutel zu siegeln, dei mit einem-staubkörnigen Sut gefüllt;istβ .Dabei haften ziemlich oft an den Innenflächen des Beutels fein^i*''Teilchen und *b'e«- '-einträchtigen die Siegelartoeit. Es konnten Jedoch ©rfin= * - dungsgemäse sehr zufriedenstellende Siegelungea .bei soleheia Beuteln hergestellt werden» ■'.·'.-■■ The invention enables * ®s ,, to achieve perfectly · usable © victories · = long, which are considered difficult to achieve with the currently available resources. For example, seals were made with multiple layers of film 'Produced with ** excellent results It is also possible to seal a bag filled with a dust-grained bag; is β. In doing so, quite often fine particles and * b'e' adhere to the inner surfaces of the bag. - '- affect the seal. However, it was possible to produce very satisfactory sealing una. For soleheia bags according to the invention »■ '. ·' .- ■

Beispiele für- Thermoplasten, die erfinduagsgemäss verarbeitet' werden können,.-sind Polyäthylen mit eine:*; Dichte von 0,913 bis 0,9751.-Polyvinylchlorid", Polypropylen, WyIoJa9 Polyester, Polyolefine, Polystyrol, Poly'iuten, Kautschuk=· hy dr oc hl or id,'Mischungen w©n Polyäthylen-mit Polypropylen, Elastomere, wie Polyisobutylen, chloriertes Polyäthylen, -■-Ithylen-Propylen-Harzmässen, -Polyvinylac«tat, Äthylen/ Vinylacetät^Mischpolymerisate und Mischpolymerisate von . Äthylen mit Vinylacetat9 Buten-1, Propylen, -Ootes-1 o- --Examples of thermoplastics that can be processed according to the invention are polyethylene with a: *; Density of 0.913 to 0,9751. polyvinyl chloride ", polypropylene, WyIoJa 9 polyesters, polyolefins, polystyrene, Poly'iuten, rubber = · hy dr oc hl or ID, 'n © w mixtures of polyethylene with polypropylene, elastomers, such as polyisobutylene , chlorinated polyethylene, - ■ -Ithylen-Propylen-Harzmässen, -Polyvinylac «tat, ethylene / vinyl acetate ^ copolymers and copolymers of. Ethylene with vinyl acetate 9 butene-1, propylene, -Ootes-1 o- -

facfafolgead sind Ausführ ungsf.ormen der-Erfindung, in ftsrbindusig rait den Zeichnungen "beschrieben, in deaeafacfafolead are embodiments of the invention, in ftsrbindusig rait the drawings "described in deaea

Figo 1 eine Seitenansicht einer kontinuierlichFigo 1 is a side view of a continuously

ß "ß "

Ausführungsform derEmbodiment of the

Figo 2 eine Ansicht, zum Teil im Schnitt, nach der Linie in Figo 1Figo 2 is a view, partly in section, along the line in Figo 1

Figo 3 eine Ansieht <, zum feil im Schnitt? nach der Linie 2-2.der in Figo 1-gezeigten Vorrichtung bei ¥erwendung abgeschrägter He-is-siegelbäadey-Figo 3 a view <, for sale in section? according to line 2-2 of the device shown in Fig. 1 when using beveled He-is-Siegelbäadey-

zeigt» .-■"■' "..-.■■-■shows ».- ■" ■ '"..-. ■■ - ■

Bei der Vorrichtung-nach fig« 1 Y^ird das ."zu "siegelnd·©"' Material 1p-, das von der- linken Seite zugeführt wird, von Förderbändern 15 erfasst,, die ana einem tuehartlgeia Material oder aus Metall mit einem tucha:.'tigen Überzug' hergestellt sind. Diese-Förderbänder-laufen über-eine •Reihe flexibler-Walze-η, .deren erste 11 angetrieben ist, K während die übrigen 12 lose .mitgenommene Walzen darstel=· leno Walzen aus 'Siliconkautschuk haBeö s:,eh für diesen Zweck als sehr zufriedenstellend erwieseiu ■■■'.-In the device-according to fig. 1 Y ^ the "to" sealing material 1p, which is fed in from the left side, is captured by conveyor belts 15, which are similar to a solid material or made of metal with a Tucha:.. 'coating term' are made These conveyor belts run-on-one • number of flexible roller-η, .deren first driven 11 K while the remaining 12 loosely .mitgenommene rollers depicting = len o · rolls from ' Silicone rubber has proven to be very satisfactory for this purpose anyway ■■■ '.-

• Wie Figo 2 zeigts
nähernd die gleiche Breiteo Auf der Seite der Förderbänder,,,.· die dem zu siegelnden Material zugekehrt sind/ liegen » elektrisch beheizte Siegelbänder 14 auf,.-die wesentlich, schmäler als die förderbänder sindo Zur iStromsufnhr ^a den Siege !bändern sind Biiraten 16 vorgesehene Verstell·= bare Walzen 15 halten die Bänder ständig unter .eines gleichbleibenden Spannungο• How Figo 2 shows s
approximately the same width o On the side of the conveyor belts that face the material to be sealed / are electrically heated sealing belts 14, which are considerably narrower than the conveyor belts 16 provided adjustable rollers 15 keep the belts under constant tension

' Fig» 2 zeigt die relative Lage der Bände:: und des zu siegeln den Materials«. Dabei sind der Übersichtlichkeit halber die flexiblen Yialzen in einer. Lage "gezeigt,, in welcher" sie gerade erst Druek auszuüben beginnen;; -im tatsächlichen Betrieb werden natürlich die Förderbänder 15 von den flexiblen V/alzen 12 eng as das. Material ^O gedrückte Die beheizten S'iegelbände'r 14* die sich zwischen'de®" Förderbändern befinden-'und-'zwischen--deren sich wiederum" das zu siegelnde Material befindet, w.erdea in die .gesehmol·= zene.Masse in dem Siegelbereieh' geärückt," wodurch etwas geschmolzenes Material nach'-aussen zu den Seiten, dee .'Fig. 2 shows the relative position of the volumes and the material to be sealed'. For the sake of clarity, the flexible Yialzen are in one. Position "shown" in which "you are just beginning to exercise pressure ;; -in the actual operation, of course, the conveyor belts 15 of the flexible V / alzen 12 closely as the. ^ O material pressed Heated S'iegelbände'r 14 * which zwischen'de® "conveyor belts are-'and-'zwischen-- which, in turn, is "the material to be sealed, w.erdea moved into the .gesehmol · = zene.Masse in the sealing area," causing some molten material to the outside to the sides, dee.

-..-S'iegelbandes fliesst. Das Ausgangsma.terial, das seitlieh ■'■ der Siegelbänder fest zwischen den FÖrdei?bändern gehalten-..- S'iegelbandes flows. The starting material that has been used since then the sealing tapes are firmly held between the conveyor belts

-■ wird-, vermag sich jedoch nioht von d©m Sehmeisbereich seit«= lieh wegzubewegenο Im Ergebnis "staut" sich das gesclmolzene- ■ will-, but cannot move away from the Sehmeis area since «= borrowed away ο As a result, the melted "accumulates"

FD-17 . .: .-..'■■■■ ;FD-17. . : .- .. '■■■■;

Material gegen das Aiisgaogsmaterial an dear Rändern der Siegelstelle auf, so dass eine Siegelüiig mit hantel- ■ formigem Profil-erhalten "wird0 "Material against the Aiisgaogsmaterial at the edges of the sealing point, so that a seal with a dumbbell-shaped profile "becomes 0 "

Bekanntlich liegt die Schwächungsstelle jeder Heissiegelung in dem" der Siegelstelle und dem nicht-gesiegeltea Ausgangs-» material benachbarten Zwischenbereicho Dusch.dieses Fliessesi des geschmolzenen Materials wird dieser gwisehenbereich vex·=» stärkt., so dass die Siegelung nicht schwächer als das Ausgangsmaterial ist. In -der Tat reisst'"bei einem Zugversueiiein Streifen des Materials, äas in der erfind'ungsgemässesi"' Vorrichtung heissgesiegelt worden ist9 :Miofet am Harad des1"" Siegelungp sondern an*-einer aaderen Stelle0 ··. , As is well known, the weakening point of every heat seal lies in the intermediate area adjacent to the sealing point and the unsealed starting material. This flow of molten material strengthens this welding area so that the seal is not weaker than the starting material. -the been in fact, '' at a Zugversueiiein strip of material, AEA's in the erfind'ungsgemässesi "'tears device is heat-sealed 9: Miofet Harad on the 1" "* Siegelungp but in -this aaderen Stelle0 ··.

Sine genaue Untersuchung veiner ■ praktisch hergestellten'Heise= siegel ung zeigt, dass der Teil der Sie ge lungs, auf den es ankommt,'. von dem Hand der 'Siegelstelle" gebildet wircL Bai den meisten Siegelungeir werden zwei Händer ' von. gleiches1-Festigkeit -erhalten,- obwohl in vielen Fällen nur einer dieser .Händer im Einsatz zur Auswirkung1 .kommt 0 Eis Anwendungsfall-ist beispielsweise das Sehliessen übt eines Beutels "durch He-issiegelrio"'Der 'innere. Hand .-der-. Heis.s« siegelnaht stellt den einziges Seil der Siegelung dar, welcher für den erzielten Verschluss von -Bedeutung ist9 A close examination of his ■ practically produced 'sealings shows that the part of the seal that is important'. 'wircL formed seal site "Bai most Siegelungeir two Händer' from the hand of the -Get of equal strength thereof 1, -. although in many cases only one of these .Händer in use to impact 1 0 .kommt ice application-for example, the Sehliessen exercises a bag "through He-issiegelrio"'The' inner. Hand.-Der-. Heis.s "Siegelnaht represents the only rope of the seal, which is important for the achieved closure 9

PO-17 · ■ . ■ 'PO-17 · ■. ■ '

während'der übrig® Teil α@τ Siegelung nur eine geringe untergeordnete Rolle spielt« - ■ .'while 'the remaining® part α @ τ sealing only plays a minor subordinate role «- ■.'

Figo 3 zeigt, in ähnlicher Darstellung wie Figo. 2 eine Abänderungsform der !Teuerung, 'bei welcher ein abgeschrägt tes Siegelband 17 anstatt des flachen, Bandes von fig0 2 verwendet wird» Bei ferivendung eines solohea a1agesetoägt@B Bandes tritt eine seitliche Bewegung, des-"geschmolzen"©-!», ■ Materials an der Siegelstelle vorwiegend nur ;zu einem Hand hin ein, wodurch man gelenlct denjenigen" Baad übt Siegelung» der für die■■ ?©rsohlusswirkung voa tragender Bedeutung ists, besonders verstärken kanao Figo 3 shows, in a representation similar to Figo. ! 2 is a modification to the control, 'in which a chamfered tes sealing tape 17 is used instead of the flat strip of Figure 0 2 »In ferivendung a solohea a1agesetoägt @ B belt enters a lateral movement, DES" melted "© -" ■ Material at the sealing point mainly only; to one hand, through which one succeeds in the "Baad exercises sealing" which is of fundamental importance for the basic effect, especially reinforcing kana o

Bei den obigen-Ausfuhrungsformen. der erfindungs ?oirioMiing steht das - Heissiegelband normalerweise".in-"' unmittelbarer Berührung mit dem. -au siegelnden Material.* Man wird in manchen. -Fällen' einen leichten Überzug anae-Siliconöl auf das- S'iegelband'aufbringen * om ein Haften" zwischen dem Siegel band.--und der geschmolzenen Masse -an ".-. der Siegelstelle zu verhindernβ Hieran Äst ein Docht.vor teilhaft, wobei man die "Strom=Zuführ.ungsb.ür'sten"an der-Innenseite des Siegelbandes anordnen'kaiiöo ' .In the above embodiments. the invention? oirioMiing stands the - hot-seal tape normally "in-"'direct contact with the. -au sealing material. * One becomes in some. -Put a light coating of anae-silicone oil on the seal tape * om an adhesion "between the seal tape .-- and the molten mass -an" .-. to prevent the seal site This is followed β AEST a Docht.vor geous to give anordnen'kaiiöo the "current = Zuführ.ungsb.ür'sten" at the inner side of the sealing tape '.

8■■8 ■■

PC» 17PC »17

Die vorangehend Tbe sehr ie la© κ® Vorrichtung ist mitThe preceding Tbe very ie la © κ® device is with

digkeiten feie zu 60 m je sehr zufriedenstelleaäe Siedistances to 60 m each you are very satisfied

höhere Geschwindigkeiten siad anwendbar und in einfacherhigher speeds siad applicable and in easier

Weise dadurch realisierbar, gebaut wirdβ This way realizable, is built β

&■ ■& ■ ■

Claims (1)

So hu t ζ a η. s ρ t ü . c h eSo hu t ζ a η. s ρ t ü. c h e 1. Vorrichtung zum Heissiegeln von. Thermoplasten unter ·■ .· Druck,und Hitze, gekennzeichnet durch eine Einrichtung^, welche das zu siegelnde Material (10) !beidseitig der ■·..-Siegelstelle gegen ein seitliches Weggleiten unter der Wirkung- von aus der Schmelzenmasse an.--der Siegelstelle wegfliessenden Gut festhält, sowie ein© Einrichtung9 unter deren Wirkung ein Anteil der Schmelzenmasse. zu.einem der Siegelstelle" seitlich flieset„" ■1. Device for heat sealing. Thermoplastics under pressure and heat, characterized by a device which attaches the material to be sealed (10) on both sides of the sealing point to prevent it from sliding sideways under the effect of the molten mass. the sealing point holds goods flowing away, as well as a © device 9 under whose action a portion of the melt mass. zu.einem of the sealing point "flows laterally""■ Vorrichtung nach Anspruch 1 y -dadurch dass zur Pesthaltung des'zu siegeIndea Materials (10) gegen das Weggle'it.en'zwei das zu. siegelnde Material .(1O) zwischen sich mitnehmende Förderbänder (13) vorgesehen sind deren Breite die'jenige".der Siegelstelle überschreitet*Device according to claim 1 y - in that, to keep the material (10) to be siege against the slipping away, two that are closed. Sealing material. (10) Conveyor belts (13) are provided between them, the width of which exceeds that of the sealing point * ο ¥orriehtung nach. Anspruch 28 dadurch .gekennzeichnet^ dassdie Förderbänder-(13)-mitlaufende SiegelMiadex (14) .wesentlich geringerer. Breite .tragen» -desen Druck auf ..die. Schmelzenraasse an- der Siegelstelle einen Schmelzenanteil seitlich nach au'ssen fliessen lässt οο ¥ alignment according to. Claim 2 8 characterized by the fact that the conveyor belts (13) are running seals Miadex (14). Much less. Width. Wear »- this pressure on ... the. Schmelzenraasse at the sealing point allows a portion of the melt to flow outwards to the side ο ■pC-17■ pC-17 -4» Vorrichtung naoh Anspruch J9 dadurch gekennzeichnet^ dass die Siegelbänder (14) abgeschrägt sind derarts dass sieh der zwischen ihnen befindliche Raum nach einer -Bandeeite zu erweitert (Figo 3)° ■^ -4 "device NaOH J claim 9 characterized in that the sealing bands (14) of the bevelled space located between them by a -Bandeeite are such that s visit to extended (Figo 3) ° ■ ο Vorrichtung nach einem oder mehreren der Ansprüche 2 bis/4» dadurch gekennzeichnet, dass zur Andrückung der Föxaexfeän-. der (13) an das zu siegelnde Material (10) flexible Walzen (119 12). vorgesehen sind οο Device according to one or more of claims 2 to / 4 »characterized in that for pressing the Föxaexfeän-. the (13) on the material to be sealed (10) flexible rollers (119 12). are provided ο
DEE18075U 1962-04-13 1963-04-11 DEVICE FOR HEAT SEALING THERMOPLASTICS UNDER PRESSURE AND HEAT. Expired DE1886319U (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA846815 1962-04-13

Publications (1)

Publication Number Publication Date
DE1886319U true DE1886319U (en) 1964-01-23

Family

ID=4141461

Family Applications (2)

Application Number Title Priority Date Filing Date
DEP31561A Pending DE1262565B (en) 1962-04-13 1963-04-11 Device for the continuous heat sealing of thermoplastic films lying on top of one another using pressure and heat
DEE18075U Expired DE1886319U (en) 1962-04-13 1963-04-11 DEVICE FOR HEAT SEALING THERMOPLASTICS UNDER PRESSURE AND HEAT.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DEP31561A Pending DE1262565B (en) 1962-04-13 1963-04-11 Device for the continuous heat sealing of thermoplastic films lying on top of one another using pressure and heat

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BE (1) BE631006A (en)
DE (2) DE1262565B (en)
FR (1) FR1352667A (en)
GB (1) GB978815A (en)
NL (1) NL291443A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367261A (en) * 1965-08-16 1968-02-06 Kashiwagi Kimifumi Apparatus for continuous heat-sealing of thermoplastic sheets
US3575769A (en) * 1968-03-27 1971-04-20 American Can Co Tube side seaming method and apparatus
US4090902A (en) * 1973-05-23 1978-05-23 Industrie Pirelli, S.P.A. Optical fiber cable and manufacture thereof
SE433322B (en) * 1981-10-08 1984-05-21 Tetra Pak Int DEVICE FOR HEAL-SEALING PACKAGING LAMINATE - DESIGN OF THE SEAL BACK
DE3416985A1 (en) * 1984-05-08 1985-11-14 Held, Kurt, 7218 Trossingen METHOD AND DEVICE FOR CONTINUOUSLY PRESSING MATERIAL RAILS
NL1030737C2 (en) * 2005-12-22 2007-06-25 Ipecs B V Packaging machine for wrapping e.g. food products with film, contains central sealing unit for bonding together film webs in between web edges
DE102009053883A1 (en) * 2009-11-06 2011-05-12 Packsys Global Ltd. Welding process, loading device and welding device
EP2465393A1 (en) * 2010-12-20 2012-06-20 trend Gardinen + Zubehörfabrik GmbH & Co.KG Roller for guiding the movement of a textile, endless panel sheet curtain with corresponding weighting unit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2469972A (en) * 1945-02-23 1949-05-10 Dow Chemical Co Machine for welding thermoplastic films
DE834580C (en) * 1948-10-02 1952-03-20 Elektrowerk Der Scillo Elektro Electrode for dielectric welding and shaping of plastic films
US2556008A (en) * 1948-12-28 1951-06-05 William F Stahl Plastic-sealing apparatus
DE896101C (en) * 1951-06-10 1953-11-09 Siemens Ag Line-shaped, in particular roller or tape-shaped electrode for welding, in particular dielectric welding, of thermoplastic materials

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DE1262565B (en) 1968-03-07
NL291443A (en)
FR1352667A (en) 1964-02-14
BE631006A (en) 1963-11-04

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