FI62483C - SWITCHING FORWARDS SWITCHING FOR PLASTICS - Google Patents

SWITCHING FORWARDS SWITCHING FOR PLASTICS Download PDF

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Publication number
FI62483C
FI62483C FI770084A FI770084A FI62483C FI 62483 C FI62483 C FI 62483C FI 770084 A FI770084 A FI 770084A FI 770084 A FI770084 A FI 770084A FI 62483 C FI62483 C FI 62483C
Authority
FI
Finland
Prior art keywords
welding
rollers
webs
heating
wedge
Prior art date
Application number
FI770084A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI62483B (en
FI770084A (en
Inventor
Wolfgang Neidhart
Original Assignee
Sarna Kunststoff Ag
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
Priority claimed from CH118176A external-priority patent/CH608417A5/en
Priority claimed from CH1616176A external-priority patent/CH618627A5/en
Application filed by Sarna Kunststoff Ag filed Critical Sarna Kunststoff Ag
Publication of FI770084A publication Critical patent/FI770084A/fi
Application granted granted Critical
Publication of FI62483B publication Critical patent/FI62483B/en
Publication of FI62483C publication Critical patent/FI62483C/en

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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
    • 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
    • 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
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2053—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position
    • B29C65/2061—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding
    • 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
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2053—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position
    • B29C65/2084—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by pivoting
    • 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
    • B29C65/82—Testing 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • 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
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B29C66/8362—Rollers, cylinders or drums moving relative to and tangentially to 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/865—Independently movable welding apparatus, e.g. on wheels
    • B29C66/8652—Independently movable welding apparatus, e.g. on wheels being pushed by hand or being self-propelling
    • B29C66/86521—Independently movable welding apparatus, e.g. on wheels being pushed by hand or being self-propelling being self-propelling
    • B29C66/86523—Independently movable welding apparatus, e.g. on wheels being pushed by hand or being self-propelling being self-propelling the traction being made on the seam
    • 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
    • B29C65/82—Testing the joint
    • B29C65/8207—Testing the joint by mechanical methods
    • B29C65/8246—Pressure tests, e.g. hydrostatic pressure tests
    • 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
    • B29C66/81417—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 being V-shaped
    • 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

Landscapes

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

Description

ESSr^l M (hj^UULUTUSJUUKAISU .940, fföjp L J K v UTLÄGGNINQSSKRIFT 0Z4 O 0 *§2%$ C Patentti myönnetty 10 Cl 1933 ^Patent moddelat ^ ^ (51) Kv.fc?/tat,a3 B 29 C 27/02ESSr ^ l M (hj ^ UULUTUSJUUKAISU .940, fföjp LJK v UTLÄGGNINQSSKRIFT 0Z4 O 0 * §2% $ C Patent granted 10 Cl 1933 ^ Patent moddelat ^ ^ (51) Kv.fc? / Tat, a3 B 29 C 27 / 02

SUOMI —FINLAND (21) IWttlh.kt.nu·-P*tnttntökn*n, 77008UFINLAND —FINLAND (21) IWttlh.kt.nu · -P * tnttntökn * n, 77008U

(22) Htkumtopilvl—ΑμΒΜπ^η 12.01.77 ' * (23) Alkuptlvt—Clklfhattdag 12.01.77 (41) Tullut lulklMkal — Wlvtt offtntHj 31.07.77 hrtenttl· I» fkl«frih«llttu» (44) Nlhtlviktlptnon jt ku«L|ulluitun pvm. — PMwe· och regictarttyrelwn ' 7 Antttkm uttagd och utl.tkrifttn publlcured 30.09.82 (32)(33)(31) Pyy4uttjr ttuolktu* —-Btgtrd prtarttut 30.01.76 22.i2.76 Sveitsi-Schweiz(CH) 1181/76 I616I/76 (71) Sama Kunststoff AG, 606O Sarnen, Sveitsi-Schweiz(CH) (72) Wolfgang Neidhart, Sarnen, Sveitsi-Schweiz(CH) (7*0 Leitzinger Oy (5^) Hitsauslaite muovirainojen hitsaamiseksi - Svetsanordning för svetsning av plastbanor Tämän keksinnön kohteena on hitsauslaite muovirainojen hitsaamiseksi yhteen päällekkäisiltä osiltaan, jossa laitteessa on kotelorunko, hit-sauskohdan eteen rainojen väliin järjestetty kuumennuslaite rainojen kuumentamiseksi ja ylempi ja alempi hitsausohjäin, jotka on järjestetty välittömästi toistensa päälle ja pitävät kuumennettuja rainoja yhdessä, jolloin alempi hitsausohjäin muodostaa hitsauselimen osan ja on mekaanisesti liitetty kotelorunkoon tai ylempään hitsausohjaimeen, siten, että hitsattaessa muodostuu yksi ainoastaan hitsattavaan tuotteeseen tukeutuva yksikkö ja varmistetaan varma ja tehokas hitsaus myöskin huonolla alustalla.(22) Htkumtopilvl — ΑμΒΜπ ^ η 12.01.77 '* (23) Alkuptlvt — Clklfhattdag 12.01.77 (41) Tullut lulklMkal - Wlvtt offtntHj 31.07.77 hrtenttl · I »fkl« frih «llttu» (44) Nlhtlvtln Date of issue. - PMwe · och regictarttyrelwn '7 Antttkm uttagd och utl.tkrifttn published 30.09.82 (32) (33) (31) Pyy4uttjr ttuolktu * —-Btgtrd prtarttut 30.01.76 22.i2.76 Switzerland-Switzerland (CH) 1181/76 I616I / 76 (71) Same Kunststoff AG, 606O Sarnen, Switzerland-Schweiz (CH) (72) Wolfgang Neidhart, Sarnen, Switzerland-Schweiz (CH) (7 * 0 Leitzinger Oy (5 ^) Welding machine for welding plastic webs - Svetsanordning för svetsning The present invention relates to a welding device for welding plastic webs from overlapping parts, the device having a housing body, a heating device for heating the webs arranged between the webs in front of the welding point, and upper and lower welding guides arranged directly on top of each other and holding the heated webs together. part of the welding member and is mechanically connected to the housing body or to the upper welding guide, so that during welding there is one unit based solely on the product to be welded and a safety device safe and efficient welding, even on poor substrates.

Verhottaeassa rakenteita, esimerkiksi tunnelirakenteita muovirainoilla muodostuu hitsattaessa sikäli vaikeus, että hitsattavissa muovirai-noissa täytyy olla oikea vastapidin hitsauslaitetta tai sen osia varten, muuten hitsisauma tulee virheelliseksi. Verhottavissa rakenteissa ei yleensä ole tasaisia pintoja, jotka voisivat toimia hitsattaessa muovirainojen vastatukina, jolloin aikaisemmin tällaisia rakenteita verhottaessa yritettiin poistaa tämä puute taivuttamalla rainojen päät L-muotoisesti ja suorittamalla niiden alasivujen vastakkain hitsaus. Tämä voi olla menestyksellistä ohuiden muovirainojen kyseessä ollessa 2 62483 samalla, kun hitsattu kohta käännetään toiseen muovirainatasoon ja hitsataan siellä uudelleen. Paksumpien, esimerkiksi muutamien millimetrien paksuisten muovirainojen kyseessä ollessa tämä menetelmä ei ole käytännössä mahdollinen.When welding structures, for example tunnel structures with plastic webs, there is a difficulty in welding to such an extent that the plastic webs to be welded must have the correct opposite for the welding device or its parts, otherwise the weld will become defective. The cladding structures generally do not have flat surfaces that could act as counter-supports for the plastic webs during welding, in the past when cladding such structures, an attempt was made to eliminate this defect by bending the ends of the webs in an L-shape and welding their undersides. This can be successful for thin plastic webs 2,62483 while the welded point is turned to another plastic web plane and re-welded there. In the case of thicker plastic webs, for example a few millimeters thick, this method is not possible in practice.

Tässä mielessä tehtävänä on aikaansaada hitsauslaite, joka on riippumaton verhottavan pinnan laadusta ja sallii molempien muovirainojen päiden limihitsauksen suorittamisen niiden keskitasossa, jonka hitsauksen täytyy olla suoritettavissa laadullisesti moitteettomasti ja myöskin taloudellisesti.In this sense, the object is to provide a welding device which is independent of the quality of the surface to be clad and allows the ends of both plastic webs to be subjected to overlap welding in their central plane, which must be welded qualitatively and also economically.

Tällainen hitsauslaite tunnetaan keksinnön mukaan siitä, että hitsaus-laite muodostuu kosketuskuumennuskappaleista, joilla edullisesti on kiilan muoto ja että hitsausohjaimet on muodostettu rulla-alustoiksi, jotka kaarevalla varrella, edullisesti joutsenkaulalla ovat yhdistetty toisiinsa.Such a welding device is characterized according to the invention in that the welding device consists of contact heating pieces which preferably have the shape of a wedge and that the welding guides are formed as roller bases connected to each other by a curved arm, preferably a gooseneck.

Keksinnön mukaista hitsauslaitetta selitetään esimerkkinä seuraavassa viitaten piirustuksiin, joissa:The welding device according to the invention will be explained by way of example in the following with reference to the drawings, in which:

Kuvio 1 esittää osittain kaaviollisesti hitsisaumaa pitkin nähtynä muovirainojen kahta päällekkäistä päätä, jolloin kuvioarkin yli jatkuva alempi muoviraina on katkaistu välittömästi ennen hitsauskonetta.Figure 1 is a partial schematic view of the two overlapping ends of the plastic webs taken along the weld seam, with the lower plastic web running over the pattern sheet being cut immediately before the welding machine.

Kuvio 2 esittää aivan kaaviollisesti kuviosta 1 pitkin viivaa II-II otettuna leikkausta hitsauslaitteesta, jolloin hitsauskoneen osat on jätetty pois.Fig. 2 shows quite schematically along the line II-II in Fig. 1 a section of the welding device, the parts of the welding machine being omitted.

Kuvio 3 esittää aivan kaaviollisesti kuviosta 1 pitkin viivaa III-III otettua leikausta hitsauslaitteesta.Fig. 3 shows quite schematically a section of the welding device taken along the line III-III in Fig. 1.

Kuvio 4 esittää sivulta nähtynä erään käytännöllisen sovellutusmuodon mukaista hitsauslaitetta.Figure 4 shows a side view of a welding device according to a practical embodiment.

Kuvio 5 esittää perspektiivisesti ylhäältä nähtynä hitsauslaitetta sisään sovitettuine muovirainoineen.Figure 5 is a perspective view from above of a welding device with embedded plastic webs.

Kuvio 6 esittää kuviosta 1 pitkin viivaa VI-VI otettua leikkausta kuvioiden 4 ja 5 mukaisesta hitsauslaitteesta.Fig. 6 shows a section of the welding device according to Figs. 4 and 5 taken along the line VI-VI in Fig. 1.

Kuvio 7 esittää osittain kaaviollisesti hitsisaumaa pitkin nähtynä muovirainojen kahta päällekkäistä päätä, jolloin kuvioarkin yli jatkuva alempi muoviraina on katkaistu välittömästi ennen hitsauskonetta.Figure 7 is a partial schematic view of the two overlapping ends of the plastic webs taken along the weld seam, with the lower plastic web running over the pattern sheet being cut immediately before the welding machine.

Kuvio 8 esittää kuvion 7 mukaisen sovellutusmuodon rakennetta leikattuna kuviossa 7 pitkin viivaa VIII-VIII.Fig. 8 shows the structure of the embodiment according to Fig. 7, cut in Fig. 7 along the line VIII-VIII.

3 624833,62483

Kuvio 9 esittää osittain kaaviollisesti kuviosta 10 leikkausviivaa IX-IX pitkin uutta kiilan kiinnitystä kiiloineen ja koestus-saumalaitteineen.Fig. 9 is a partial schematic view of the new wedge attachment with wedges and test seam devices taken along section line IX-IX in Fig. 10.

Kuvio 10 esittää kuvion 9 mukaista kiilan kiinnitystä kuviosta 9 pitkin viivaa X-X otettuna leikkauksena.Fig. 10 shows the wedge attachment according to Fig. 9 in a section taken along the line X-X in Fig. 9.

Kuvio 11 esittää sivulta nähtynä kuumennuskiilaa molempine kääntö-akseleineen kuviosta 9 pitkin viivaa XI-XI otettuna leikkauksena.Fig. 11 is a side sectional view of the heating wedge with both pivot axes taken along the line XI-XI in Fig. 9.

Kuviossa 1 hyvin yksinkertaistettuna esitetty hitsauslaite on sovitettu hitsaamoon ylempää muovirainaa 3 ja alempaa muovirainaa 4 vasten, jotka muovirainat on hitsattava päistään. Hitsauslaiteessä 1 on ko-telorunko 6, josta kuvioissa 1 - 3 on osittain esitetty ainoastaan kojelauta 8. Hitsauslaite on varustettu esimerkiksi kuumennuskiilalla 10 toisiinsa yhdistettävien muovirainojen 3 ja 4 hitsautuvasti kuumentamiseksi. Tämän kiilan 10 ja toisiinsa hitsattavien muovirainojen 3 ja 4 väliin hyvän kosketuksen varmistamiseksi tasaista kuumennusta varten ylhäälle ja alhaalle on sovitettu joustaviksi varsiksi 12 lat-tajouset 13 sekä puristusfcullat 14. Kuumennuskiilan 10 takana on kuumennuskiilakotelo 16, johon kuumennuskiila 10 voidaan vetää hit-saustavaraa sisään- ja ulosvedettäessä.The welding device shown in a very simplified manner in Fig. 1 is arranged in a welding shop against an upper plastic web 3 and a lower plastic web 4, which plastic webs must be welded at their ends. The welding device 1 has a housing body 6, of which only the dashboard 8 is partially shown in Figures 1 to 3. The welding device is provided, for example, with a heating wedge 10 for welding the plastic webs 3 and 4 to be welded together. To ensure good contact between this wedge 10 and the plastic webs 3 and 4 to be welded to each other, flat springs 13 and compression rollers 14 are arranged as flexible arms 12 for upper and lower heating. Behind the heating wedge 10 there is a heating wedge housing 16 into which the heating wedge 10 can be retracted. and when pulled out.

Ylempi hitsausalusta 18 on varustettu etumaisella hitsausrullalla 20 ja takimmaisella hitsausrullalla 21. Rullat on kiinnitetty kumpikin omaan kulmavipuunsa 23 ja 24. Nämä kulmavivut 23, 24 on yhdistetty kääntyvästi liitoslaattoihin 26 vast. 27 niin, että niitä voidaan kääntää akseleiden 29 vast. 30 ympäri. Kulmavipujen 23 ja 24 väliin sovitettu, säädettävä puristusjousi 32 pyrkii painamaan molempia hit-sausrullia 20 ja 21 tasaisesti ylemmän muovirainan 3 yläpintaa vasten. Jotta hitsauslaite voitaisiin viedä erilleen muovirainoista 3 ja 4, on järjestetty kaksi kädensijaa 33 ja 34, jotka jousen 32 painetta vastaan kohottavat hitaausrullat 20 ja 21 rainoista 3 ja 4 erilleen.The upper welding base 18 is provided with a front welding roller 20 and a rear welding roller 21. The rollers are each attached to their own angle levers 23 and 24. These angle levers 23, 24 are pivotally connected to the connecting plates 26, respectively. 27 so that they can be turned by the axes 29 resp. 30 around. An adjustable compression spring 32 arranged between the corner levers 23 and 24 tends to press both hit rollers 20 and 21 evenly against the upper surface of the upper plastic web 3. In order to separate the welding device from the plastic webs 3 and 4, two handles 33 and 34 are provided, which, against the pressure of the spring 32, lift the welding rollers 20 and 21 apart from the webs 3 and 4.

Välittömästi ylemmän hitsausalustan 18 alapuolella on alempi hitsaus-alusta 36. Se on varustettu kahdella yhdensuuntaisella metallipalkilla 38, joista ainoastaan toinen on näkyvissä. Ne on yhdistetty liitos-laatan 40 välityksellä alemman hitsausalustan 36 telin kanssa, jolloin metallipalkit 38 kannattavat päissään etumaista hitsausrullaa 44 ja takimmaista hitsausrullaa 45, samalla kun keskellä on esitetty 62483 kaaviollisesti käyttökaksoispyörä 41. Alempi hitsausalusta 36 on kiinnitetty alempaan kotelorunkoon 6. Tämä tapahtuu kaaviollisesti esitetyn yhdyskannattimen 47 välityksellä, joka on nk. joutsenkaulan muotoinen. Joutsenkaulan ylimalkainen kulku käy selville kuviosta 2. Kuvio 3 esittää hitsausrullia 20 ja 44, joissa on ketjupyörät 49 vast. 76. Tässä kuviossa on edelleen esitetty molempia muovirainoja 3 ja 4 päällekkäin hitsattaessa hitsausrullien 20 ja 44 sopivan muotoilun ansiosta saatu kaksoishitsisauma 52 sekä niiden välillä oleva, koes-tuskanavaksi 54 muodostettu hitsaamaton osa.Immediately below the upper welding base 18 is a lower welding base 36. It is provided with two parallel metal beams 38, only one of which is visible. They are connected via a connecting plate 40 to the bogie of the lower welding base 36, whereby the metal beams 38 support the front welding roller 44 and the rear welding roller 45 at their ends, while 62483 is schematically shown in the middle as a driving twin wheel 41. The lower welding base 36 is attached to the lower housing frame. via a connecting bracket 47 which is in the form of a so-called gooseneck. The superficial course of the swan neck can be seen in Fig. 2. Fig. 3 shows welding rollers 20 and 44 with sprockets 49, respectively. 76. This figure further shows the double weld seam 52 obtained by welding the two plastic webs 3 and 4 on top of each other due to the suitable design of the welding rollers 20 and 44 and the non-welded part formed between them as a test channel 54.

Hitsausrullien hyvän tartunnan varmistamiseksi hitsattavaan aineeseen niiden pinta on pyälletty.To ensure good adhesion of the welding rollers to the material to be welded, their surface is knurled.

Kuviossa 4 on esitetty sivulta nähtynä erään sovellutusmuodon mukaisen hitsauslaitteen osa, josta käy selville kuvioissa 1-3 esitetyt osat, jotka on merkitty kaikissa näissä kuvioissa samoilla viitenumeroilla. Edelleen kuvio 4 esittää kotelorunkoon 6 kojelaudan 8 lisäksi kiinnitettyä sankaa 56 sekä kojelaudan 8 eteen ja taakse kiinnitettyjä juok-supyöriä 58. Käyttömoottori 60 toimii hitsauslaitteen käyttämiseksi, ts. sen eteenpäin siirtämiseksi. Käyttömoottorista lähtien (kuv. 5) sen lähtöakselilla on ensimmäinen käyttöpyörä 61 ensimmäisine ketju-käyttöineen 62 sekä toinen käyttöpyörä 63 toisine ketjukäyttöineen 64. Ensimmäinen ketjukäyttö 62 käyttää ketjupyörää 66 alemman hitsaus-alustan 36 käyttämiseksi, kuten jäljempänä yksityiskohtaisesti selitetään viitaten kuvioon 6. Tässä käytöstä kuviosta 4 käy selville ketjukäyttö 69 vastaavasti takimmaisen hitsausrullan 45 käyttämiseksi. Kiristysvipu 71 toimii kuumennuskiilan]10 vetämiseksi takaisin kuu-mennuskiilakoteloon 16, jotta muovirainojen 3 ja 4 sisään johtaminen ilman kosketusta kuuman kuumennuskiilan 10 kanssa olisi mahdollista. Ylemmän hitsausalustan 18 hitsausrullien 20 ja 21 käyttämiseksi on esitetty edelleen kaksi ketjukäyttöä 73 ja 74, joita käytetään käyttö-pyörän 63 ja toisen ketjukäytön 64 välityksellä, kuten käy selville kuviosta 5.Fig. 4 is a side view of a part of a welding device according to an embodiment, showing the parts shown in Figs. 1 to 3, which are denoted by the same reference numerals in all these figures. Furthermore, Fig. 4 shows a bracket 56 attached to the housing body 6 in addition to the dashboard 8 and impellers 58 attached to the front and rear of the dashboard 8. The drive motor 60 operates to drive the welding device, i.e. to move it forward. Starting from the drive motor (Fig. 5), its output shaft has a first drive wheel 61 with first chain drive 62 and a second drive wheel 63 with second chain drive 64. The first chain drive 62 drives a sprocket 66 to drive a lower welding base 36, as described in detail below with reference to Fig. 6. 4 shows a chain drive 69 for driving the rear welding roller 45, respectively. The clamping lever 71 acts to pull the heating wedge] 10 back into the heating wedge housing 16 to allow the plastic webs 3 and 4 to be inserted without contact with the hot heating wedge 10. To drive the welding rollers 20 and 21 of the upper welding base 18, two chain drives 73 and 74 are further shown, which are driven by a drive wheel 63 and a second chain drive 64, as shown in Fig. 5.

Kuviosta 6 käy selville alempi hitsausalusta 36 vastaavine käyttöesineen ja hitsausalustan 36 yhdyselimineen hitsauslaitteen kotelorunkoon 6. Ensimmäisen ketjukäytön 62 käyttämä ketjupyörä 66 (kuv. 5) on varustettu akselin 79 välityksellä kartiohammaspyörällä 80, joka on lomistuksessa kartiohammaspyörän 81 kanssa ja käyttää akselia 82 kartiohammaspyörineen 83. Tämä kartiohammaspyörä 83 taas on lomis- 5 62483 tuksessa kartiohammaspyörän 84 kanssa ja käyttää siten akselia 85, jonka vapaassa päässä on käyttökaksoisketjupyörä 41 (kuv. 4). Tästä aikaansaadaan ketjukäyttöjen 68 ja 69 välityksellä käytöt ketjupyö-riin 76 ja 77, jotka puolestaan käyttävät akseleita ja siten molempia hitsausrullia 44 ja 45.Fig. 6 shows the lower welding base 36 with the respective drive and the welding base 36 connecting members to the housing body 6. The sprocket 66 driven by the first chain drive 62 (Fig. 5) is provided via a shaft 79 with a bevel gear 83 interleaved with a bevel gear 81. the bevel gear 83, on the other hand, is in interlocking with the bevel gear 84 and thus drives a shaft 85 having a drive double sprocket 41 at its free end (Fig. 4). This provides, via the chain drives 68 and 69, drives for the sprockets 76 and 77, which in turn drive the shafts and thus both the welding rollers 44 and 45.

Kuviosta 6 käy selville myöskin vielä kotelorungon 6 osat sekä hius-neulalattajouseksi muodostetut jouset 13, jotka samalla muodostavat varret 12. Samoin käy selville näiden jousien paineenalaisena olevat puristusrullat 14.Figure 6 also shows the parts of the housing body 6 and the springs 13 formed as a hairpin needle spring, which at the same time form the arms 12. The pressure rollers 14 of these springs under pressure can also be seen.

Yhdyskannatin 47, joka tässä on muodostettu joutsenkaulaksi, aikaansaa alemman hitsausalustan 36 jäykän yhteyden kotelorungon 6 kanssa, ts. rakenteen, joka tekee mahdolliseksi tarttumisen molempiin muovi-rainoihin 3 ja 4 kuvion 5 mukaan alemman hitsausalustan 36 välityksellä ja siten muodostamisen ylempään hitsausalustaan 18 nähden verhottavasta pinnasta täysin riippumattoman vastatuen.The connecting bracket 47, which is here formed as a swan neck, provides a rigid connection of the lower welding base 36 to the housing body 6, i.e. a structure which allows both plastic webs 3 and 4 to be gripped by the lower welding base 36 and thus formed from the upper welding base 18 fully independent counter-support.

Tällainen hitsauslaite ei tarvitse enää mitään tukea verhottavaan alustaan, vaan se on tuettu yksinomaan ja ainoastaan kahteen yhdistettävään muovirainaan 3 ja 4, jolloin molemmat juoksupyörät 58 kulkevat alemman muovirainan 4 päällä, samalla kun joutsenkaula 47 yhdistää kuviossa 5 ei-näkyvän alemman hitsausalustan 36 sekä vastaavat käyttö- ja kiinnitysosat kotelorungon 6 kanssa.Such a welding device no longer needs any support on the cladding base, but is supported exclusively and only on two plastic webs 3 and 4 to be joined, with both impellers 58 running on the lower plastic web 4, while the gooseneck 47 connects the lower welding base 36 not shown in Fig. 5. and mounting parts with housing body 6.

Samalla kun kristysvipu 71 kuviossa 4 on asennossa, jossa kuumennus-kiila 10 on kuumennuskiilakotelossa 16 ja siten mahdollistaa muovi-rainojen 3 ja 4 sisäänjohtamisen, kuviossa 5 on esitetty kiristysvipu 71 alaskäännetyssä asennossa, jossa kuumennuskiila 10 on työasennossa. Myöskin kädensijat 33 ja 34 ovat vapaat niin, että puristusjousi 32, kuten käy selville kuviosta 5, painaa molempia kulmavipuja 23 ja 24 sekä siten hitsausrullia 20 ja 21 ylempää muovirainaa 3 vasten, jolloin alemman hitsausalustan 36 hitsausrullat 44 ja 45 toimivat vasta-tukina.While the christening lever 71 in Fig. 4 is in the position where the heating wedge 10 is in the heating wedge housing 16 and thus allows the plastic webs 3 and 4 to be inserted, Fig. 5 shows the tightening lever 71 in the folded down position where the heating wedge 10 is in the working position. The handles 33 and 34 are also free so that the compression spring 32, as can be seen in Fig. 5, presses both corner levers 23 and 24 and thus the welding rollers 20 and 21 against the upper plastic web 3, the welding rollers 44 and 45 of the lower welding base 36 acting as counter-supports.

Muovirainojen 3 ja 4 johtamiseksi hitsauslaitteeseen ja siitä pois vedetään kuumennuskiila 10 kuumennuskiilakoteloon 16. Tämä sallii hitsattavan aineen häiriöttämän muuton.To guide the plastic webs 3 and 4 into and out of the welding device, a heating wedge 10 is pulled into the heating wedge housing 16. This allows the material to be welded to be disturbed.

Puhdistusta varten kuumennuskiila 10 voidaan vetää vaivattomasti ulos 6 62483 laitteesta, jolloin kuumennuskinlan ohjaus varmistaa sen oikean takai-sinsijoituksen hitsausalustoihin nähden.For cleaning, the heating wedge 10 can be easily pulled out of the device 6 62483, whereby the control of the heating bar ensures its correct repositioning relative to the welding substrates.

Hitsauksen aikana moottori 60 käyttää hitsausrullien 20, 21, 44 ja 45 välityksellä hitsauslaitetta, jolloin kuumennuskiila 10 kuumentaa hitsausrullien edessä olevat muovirainojen 3 ja 4 osat hitsauspehmeik-si ja sen jälkeen välittömästi seuraavat hitsausrullat 20 ja 44 muodostavat muotoaan vastaten kaksoishitsisauman 52. Tämän sauman 52 välissä on koestuskanava, johon sovitetaan paineilmalähde hitsisauman 52 tiiviyden koestamiseksi.During welding, the motor 60 drives a welding device through the welding rollers 20, 21, 44 and 45, whereby the heating wedge 10 heats the parts of the plastic webs 3 and 4 in front of the welding rollers to be soft and then immediately forms a double weld seam 52 between these seams. is a test channel into which a source of compressed air is fitted to test the tightness of the weld 52.

Kuvioiden 7 ja 8 mukaisessa sovellutusmuodossa alkuperäinen alempi hit-sauskenkä 36 (kuv. 2) on muodostettu laakerin 86 ja varren 87 välityksellä kotelon 8 kanssa yhdistetyksi hitsausrullaksi 88. Tämän hitsaus-rullan 88 käyttö tapahtuu moottorin kannattimesta 89 lähtien käyttö-akselin 90, ketjukäytön 91 ja vastaavien ketjupyörien 92 välityksellä. Ylemmässä hitsauskengässä 18 on nyt yksi hitsausrulla 93, joka on pidätetty varren 94 välityksellä heilahtavasti ylemmällä käyttöakselil-la 95 ja painetaan lattajousen 96 välityksellä muovirainoja 3 ja 4 sekä alempaa hitsausrullaa 88 vasten. Ylemmän hitsausrullan 93 käyttö tapahtuu käyttöakselin 95, ketjukäytön 97 ja suunnanvaihtoisen hammaspyöräkäytön 98 välityksellä. Samalla tavalla kuin hitsausrullat 88 ja 93, myöskin kiilan puristusrulla 99 on laakeroitu joustavasti paikalleen laakerin 86 ja toinen puristusrulla 100 jousen 101 välityksellä. Muovirainojen 3 ja 4 paremmin sisäänjohtamiseksi voidaan kiilaksi 102 muodostettu kuumennusosa siirtää kiilakoteloon 16 sekä kohottaa ylempää hitsausrullaa 93 ja ylempää puristusrullaa 100 vivun 103 ja tangoston 104 välityksellä. Jos kiila 102 pidettäisiin lujasti paikallaan, niin ei voisi tapahtua mitään sovitusta muovirainan 4 ainepaksuuden mukaan. Tämän epäkohdan poistamiseksi kiila 102 on ripustettu kääntyvästi. Se sovittuu vastaavasti ja asettuu tukevasti jousien 96 ja 101 aikaansaaman voiman vaikutuksesta myöskin muuttuvilla ainepaksuuksilla. Kuviosta 9 käy selville kiilan kiinnitys. Kiila 102 on pidätetty joustavasti lämpölaajenemisen johdosta jousilla 105 pitimessä 106. Itse pidin 106 on laakeroitu kääntyvästi tapin 107 avulla välikekappäleeseen 108, joka puolestaan on laakeroitu kiertotapin 109 välityksellä kiilan siirtolaitteeseen 110. Tämä laite 110 mahdollistaa kiilan 102 edellä mainitun takaisinvetämisen kiilakoteloon 16 ja helpottaa siten muovirainojen sisäänjohtamista koskettamatta kuumaa kiilaa 102. Tappien 107 ja 109 vaikutuksesta kiila 102 pysyy hyvin 7 62483 yhdensuuntaisena hitsausrullien 88 ja 93 kiertoakseleiden kanssa.In the embodiment of Figures 7 and 8, the original lower welding shoe 36 (Fig. 2) is formed by a bearing 86 and a shank 87 as a welding roller 88 connected to the housing 8. This welding roller 88 is driven from the motor support 89 by a drive shaft 90, a chain drive 91 and via the corresponding sprockets 92. The upper welding shoe 18 now has one welding roller 93 which is pivotally held by the arm 94 on the upper drive shaft 95 and pressed by the flat spring 96 against the plastic webs 3 and 4 and the lower welding roller 88. The upper welding roller 93 is driven by a drive shaft 95, a chain drive 97, and a reversible gear drive 98. In the same way as the welding rollers 88 and 93, the wedge pressing roller 99 is also resiliently mounted in place by a bearing 86 and the second pressing roller 100 by means of a spring 101. In order to better introduce the plastic webs 3 and 4, the heating part formed as the wedge 102 can be transferred to the wedge housing 16 and the upper welding roller 93 and the upper compression roller 100 can be raised by means of the lever 103 and the rod 104. If the wedge 102 were held firmly in place, no adjustment could take place according to the material thickness of the plastic web 4. To overcome this drawback, the wedge 102 is pivotally suspended. It fits accordingly and settles firmly under the influence of the force exerted by the springs 96 and 101 even with varying material thicknesses. Figure 9 shows the wedge attachment. The wedge 102 is resiliently retained due to thermal expansion by springs 105 in the holder 106. The holder 106 is pivotally mounted by a pin 107 on a spacer 108 which in turn is mounted by a pivot pin 109 on a wedge transfer device 110. This device 110 allows insertion without contacting the hot wedge 102. Under the action of the pins 107 and 109, the wedge 102 remains well 7 62483 parallel to the axes of rotation of the welding rollers 88 and 93.

Mutta se voi tehdä jokaisen liikkeen korkeussuunnassa ja vieläpä erikseen kääntöliikettä tappien 107 tai 109 akseleiden ympäri (kuten kuviossa 11 on esitetty) sekä samanaikaisesti molempia kääntöliik-keitä. Lepoasennossa, ts. varsinkin muovirainoja 3 ja 4 sisäänjohdet-taessa kiila 102 pidetään vasteen 111 välityksellä jousen 112 vaikutuksesta yksikäsitteisesti määrätyssä asennossa. Koestussauman 54 pitämiseksi varmasti avoinna hitsauskohtien 52 väliin on sovitettu tappi, joka jatkuvasti seuraa mukana hitsattaessa.But it can make each movement in the height direction and even separately a pivoting movement about the axes of the pins 107 or 109 (as shown in Fig. 11) as well as both pivoting movements simultaneously. In the rest position, i.e. in particular when introducing the plastic webs 3 and 4, the wedge 102 is held by means of a stop 111 under the action of the spring 112 in an unambiguously determined position. To keep the test seam 54 securely open, a pin is arranged between the welding points 52, which continuously follows during welding.

Koska kuumennuskiila pidetään lämpötilan säädön välityksellä aina käyttövalmiina, hitsauslaitteen käynnistämisen jälkeen edellä selitetyllä tavalla alkaa heti sulatusvaihe. Käyttämällä laitteen kytkintä tulee moottori käynnistetyksi. Silioin llaite alkaa siirtyä ja sulatuksen sekä yhteenpuristamisen kulku tapahtuu jatkuvasti, jolloin välittömänä seurauksena mikään ilman sisääntulo ei ole mahdollista eikä voi tapahtua vastaavasti mitään hapettumista.Since the heating wedge is always kept ready for use via temperature control, the defrosting phase starts immediately after starting the welding machine as described above. Using the switch on the device will start the engine. The silicon device starts to move and the process of melting and compression takes place continuously, so that as a direct result no air inlet is possible and no corresponding oxidation can take place.

Luonnollisesti on mahdollista hitsausrullia vaihtamalla aikaansaada yksinkertainen, mahdollisesti leveämpi hitsisauma tai moninkertaisia saumoja. Vastaavasti myöskin kuumennuskiila on vaihdettavissa.Of course, it is possible to provide a simple, possibly wider weld seam or multiple seams by changing the welding rollers. Correspondingly, the heating wedge can also be replaced.

Tällaisen hitsauslaitteen vaatimuksina on tehdä mahdolliseksi kestävä ja tiivis, kahden päällekkäisen aineen, erityisesti kestomuovin yhteenliittäminen. Tällöin hitsisauman tiiviys täytyy olla koostettavissa paineilmalla. Lisäksi laitetta täytyy voida liikuttaa eteenpäin rainojen ollessa paikallaan yhdellä käyttölaitteella tai laitteen ollessa paikallaan liikuttaa rainoja vastaavalla nopeudella. Edelleen laitteen täytyy olla kokoonpantavissa vasemman- tai oikeanpuoleiseksi laitteeksi. Lisäksi tällaiselta laitteelta vaaditaan, että se voi hitsata samassa työvaiheessa hitsattavan tavaran nimellispaksuuden aina kuusinkertaiseen paksuntamiseen saakka.The requirements for such a welding device are to enable a durable and tight connection of two overlapping materials, in particular thermoplastic. In this case, the tightness of the weld must be assembled with compressed air. In addition, it must be possible to move the device forward with the webs in place with a single drive or with the device in place to move the webs at a corresponding speed. Furthermore, the device must be configurable to a left or right device. In addition, such a device is required to be able to weld the nominal thickness of the article to be welded in the same operation up to a thickness of six times.

Tällainen laite on käytettävissä jokaisella perustalla, joko hyvällä tai huonolla, ts. soralla, hiekalla, kalliolla, karkealla betonilla jne., koska tämä perusta ei saa vaikuttaa hitsauksen laatuun.Such a device is available on any foundation, either good or bad, i.e. gravel, sand, rock, rough concrete, etc., as this foundation must not affect the quality of the weld.

Claims (6)

1. Svetsaggregat för sammansvetsning av plastbanor över deras pä varandra belägna delar, vilket aggregat uppvisar en käpstomme, en framför svetsstället mellan banorna anordnad uppvärmningsanordning för upphettning av banorna och en övre och en nedre svetsstyrning, vilka anordnats omedelbart pä varanda och häller de upphettade banorna samman, varvid den nedre svetsstyrningen bildar en del av svets organen och är mekaniskt förenad med käpstommen eller den övre svetsstyrninc^i sk , att vid svetsningen bildas en endast mot produkten, som skall svetsas, stödd enhet och en säker och effektiv svetsning ocksä pä ett däligt underlag säkerställs, kanne- t e c k n a t därav, att svetsaggregatet bestär av beröringsupp-hettningsstycken (10) med företrädesvis kilform, och att svets-styrningarna är utformade som rullunderlag (18, 36), som med en böjd arm, företrädesvis en svanhals (47) är förenade med varandra.A welding assembly for welding plastic webs over their superposed parts, said assembly having a baffle body, a heating device arranged in front of the welding path for heating the webs, and an upper and a lower welding guide which are arranged immediately on each other and pouring the heated webs together , wherein the lower welding guide forms part of the welding means and is mechanically connected to the jaw body or upper welding guide, so that in the welding one is formed only against the product to be welded, supported unit and a safe and effective welding also in a poor support is ensured, characterized in that the welding assembly consists of contact heating pieces (10) of preferably wedge shape, and that the welding guides are formed as rollers (18, 36), which with a bent arm, preferably a tail neck (47) are united with each other. 2. Svetsaggregat enligt patentkravet 1, kännetecknat därav, att ätminstone en av rullarna (20, 21, 44, 45) pä varie rullunderlag (18, 36) drivs av en central drivmotor (60), särskilt över kedjor (61, 62, 64) eller kugghjul (80, 81, 83, 84). 1 Svetsaggregat enligt patentkravet 1 eller 2, kännetecknat därav, att uppvärmningsanordningens beröringsuppvärmnings-stycke (10) och t.ex. vid omkretsen räfflade svetsrullar (20, 21,Welding assembly according to claim 1, characterized in that at least one of the rollers (20, 21, 44, 45) on each roller support (18, 36) is driven by a central drive motor (60), in particular over chains (61, 62, 64). ) or gears (80, 81, 83, 84). A welding assembly according to claim 1 or 2, characterized in that the contact heating element (10) of the heating device and e.g. at the circumference grooved welding rollers (20, 21,
FI770084A 1976-01-30 1977-01-12 SWITCHING FORWARDS SWITCHING FOR PLASTICS FI62483C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH118176A CH608417A5 (en) 1976-01-30 1976-01-30 Welding device for welding plastic webs
CH118176 1976-01-30
CH1616176 1976-12-22
CH1616176A CH618627A5 (en) 1976-12-22 1976-12-22 Welding device for welding plastic webs

Publications (3)

Publication Number Publication Date
FI770084A FI770084A (en) 1977-07-31
FI62483B FI62483B (en) 1982-09-30
FI62483C true FI62483C (en) 1983-01-10

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FI770084A FI62483C (en) 1976-01-30 1977-01-12 SWITCHING FORWARDS SWITCHING FOR PLASTICS

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CA (1) CA1096286A (en)
DE (2) DE2700971C2 (en)
FI (1) FI62483C (en)
FR (1) FR2339476A1 (en)
IT (1) IT1076008B (en)
NO (1) NO144732C (en)
SE (1) SE415463B (en)

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Also Published As

Publication number Publication date
IT1076008B (en) 1985-04-22
FR2339476A1 (en) 1977-08-26
CA1096286A (en) 1981-02-24
NO144732C (en) 1981-10-28
NO144732B (en) 1981-07-20
SE415463B (en) 1980-10-06
DE7700687U1 (en) 1981-03-12
SE7700638L (en) 1977-07-31
NO764389L (en) 1977-08-02
DE2700971C2 (en) 1987-07-09
FR2339476B1 (en) 1982-01-15
FI62483B (en) 1982-09-30
FI770084A (en) 1977-07-31
DE2700971A1 (en) 1977-08-04

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