[go: up one dir, main page]

BG110848A - A method and device for longitudinal welding of tubular bodies - Google Patents

A method and device for longitudinal welding of tubular bodies Download PDF

Info

Publication number
BG110848A
BG110848A BG10110848A BG11084811A BG110848A BG 110848 A BG110848 A BG 110848A BG 10110848 A BG10110848 A BG 10110848A BG 11084811 A BG11084811 A BG 11084811A BG 110848 A BG110848 A BG 110848A
Authority
BG
Bulgaria
Prior art keywords
foil
cooling
mandrel
tubular bodies
film
Prior art date
Application number
BG10110848A
Other languages
Bulgarian (bg)
Inventor
Original Assignee
"Мехатроника" Ад
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 "Мехатроника" Ад filed Critical "Мехатроника" Ад
Priority to BG10110848A priority Critical patent/BG110848A/en
Priority to PCT/BG2012/000009 priority patent/WO2012106783A1/en
Priority to EP12722667.8A priority patent/EP2673131A1/en
Publication of BG110848A publication Critical patent/BG110848A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • B29C65/103—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined direct heating both surfaces 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B29C53/50—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively using internal forming surfaces, e.g. mandrels
    • 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
    • B29C65/32—Induction
    • 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
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/7832—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the overlap between the parts to be joined, e.g. the overlap between sheets, plates or web-like materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/032—Mechanical after-treatments
    • B29C66/0324—Reforming or reshaping the joint, e.g. folding over
    • B29C66/03241—Flattening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • 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
    • B29C66/49—Internally supporting the, e.g. tubular, article during joining
    • 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
    • B29C66/81419—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 and flat
    • 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
    • B29C66/81425—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 stepped, e.g. comprising a shoulder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B29C66/81811—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B29C66/81815—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • B29C66/92441—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power the pressure, the force or the mechanical power being non-constant over time
    • B29C66/92443—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power the pressure, the force or the mechanical power being non-constant over time following a pressure-time profile
    • B29C66/92445—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power the pressure, the force or the mechanical power being non-constant over time following a pressure-time profile by steps
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The method and device are applicable in the food processing industry at the production of cans, bottles, boxes etc. The use of the method and device leads to a higher welding quality, improved appearance, and low waste. The foil (1) begins moving with a relatively constant speed, and bends around the arbour (2). One of the foil ends (7) passes under the pressing-cooling heel (10), while the otherend (8) passes under the pressing-cooling heel (12). The foot (5) of the arbour does not allow to both ends of the foil to touch each other. To the cavity (6) by the nozzle (3) is fed a heated hot gas. At that, the melting is limited only in this part of the foil, which is not in contact with the pressing-cooling heels and the arbour. During the following movement of the foil, due to change in the profile of the arbour, which changes to a flat (9), the end (8) of the foil raises until it is pressed to the end (7), and both ends together go to a pressing-cooling heel. Further, the foil (1) comes under the cutter (4) in order to be cut into separate tubular bodies with required length.

Description

ОБЛАСТ НА ТЕХНИКАТАTECHNICAL FIELD

Методът и устройството за надлъжно заваряване на тръбни тела са приложими в машини за производство на детайли от ламинатно фолио с един или повече слоеве, поспециално при производство на тръбни тела за туби, бутилки, кутии и други.The method and apparatus for longitudinal welding of tubular bodies are applicable in machines for the production of laminated foil parts with one or more layers, especially in the manufacture of tubular bodies for tubes, bottles, boxes, and the like.

ПРЕДШЕСТВАЩО СЪСТОЯНИЕ НА ТЕХНИКАТАBACKGROUND OF THE INVENTION

Известен е традиционен метод [US3388017], при който ламинатното фолио е във вид на лента и се придвижва с помощта на транспортна лента съосно на дорник. Фолиото се огъва върху дорника до застъпване на двата му края за получаване на надлъжно припокрити краища. Долната повърхност на единият пласт от припокритите краища попада върху вътрешната лента. Външната лента е в контакт с външната повърхност на горния пласт на припокритите краища. Външната лента осигурява загряването, охлаждането и притискането на фолиото. Тази лента се нагрява, при което фолиото в зоната на припокриването се загрява докато се разтопи и двата слоя се смесят. По посока на движението на фолиото двете ленти се охлаждат, при което заварката се фиксира и се получава тръбна заготовка, която се нарязва на тръбни тела.A conventional method is known [US3388017], in which the laminate film is in the form of a belt and is moved using a conveyor belt coaxially with a mandrel. The foil folds over the mandrel until its two ends overlap to obtain longitudinally overlapped edges. The lower surface of one layer of the overlapped edges falls on the inner strip. The outer strip is in contact with the outer surface of the upper layer of the overlapping edges. The outer strap provides heating, cooling and compression of the foil. This strip is heated, whereby the film in the overlapping zone is heated until it is melted and the two layers are mixed. In the direction of motion of the foil, the two strips are cooled, whereby the weld is fixed and a tubular workpiece is obtained, which is cut into tubular bodies.

Известно е устройство, реализиращо метода за надлъжно заваряване на тръбни тела от ламинатно фолио [US3388017], състоящо се от дорник с канал, транспортна лента за придвижване на фолиото. В този канал има вътрешна лента, а над него се придвижва външна лента. Около дорника е огънато ламинатното фолио за получаване на припокрити надлъжно краища. Външната долна повърхност на единият пласт от припокриването попада върху вътрешната лента. Външната лента е в контакт с външната горна повърхност на горния пласт на припокриването. Външната лента е и загряваща, охлаждаща и притискаща. Външната лента, се нагрява чрез нагревателен блок над нея, а на следваща позиция се охлажда чрез охлаждащ блок 4. След зоната на охлаждане има резачка за получаване на тръбни тела.A device for implementing the method of longitudinal welding of tubular bodies of laminate film [US3388017], consisting of a mandrel with a channel, a conveyor belt for moving the film. There is an inner lane in this channel and an outer lane above it. Around the mandrel, the laminate foil is bent to produce overlapped edges. The outer lower surface of one overlay layer falls on the inner strip. The outer strip is in contact with the outer upper surface of the upper overlay layer. The outer strip is also heating, cooling and compression. The outer strip is heated by a heating block above it, and in a further position it is cooled by a cooling block 4. After the cooling zone there is a cutter for receiving tubular bodies.

Недостатък на този метод и устройство за надлъжно заваряване на тръбни тела е, че получените надлъжни шевове са с ниско качество, тъй като за достигане на температурата на топене непосредствено в контактната зона между слоевете, се налага, поради предаването на енергията от вън навътре, да се прегрее външната повърхност на горния припокрит край, което влошава външния вид на получения надлъжен шев.The disadvantage of this method and device for longitudinal welding of tubular bodies is that the obtained longitudinal seams are of low quality, since in order to reach the melting temperature directly in the contact zone between the layers, it is necessary, due to the transfer of energy from the outside inwards. the outer surface of the overlapped end is overheated, which exacerbates the appearance of the longitudinal suture obtained.

······· · · · · ······· · · ·· ·· ·· ···· ··· ·········· · · · · · · · · · · · · · · · · · · · · · · · · ·

Този недостатък се засилва с увеличаването на дебелината на фолиото, с което се работи.This disadvantage is compounded by the increase in the thickness of the foil being worked on.

Друг недостатък на този метод и устройство е, че поради същите причини, те са неподходящи за надлъжно заваряване на фолио, на което предварително има нанесени изображения от външната страна на фолиото. Прегряването разрушава изображението в зоната на заварката, тъй като багрилата се повреждат.Another disadvantage of this method and device is that, for the same reasons, they are unsuitable for longitudinal welding of foil, which has pre-printed images on the outside of the foil. Overheating destroys the image in the weld area as the dyes are damaged.

Друг недостатък на този метод и устройство е, че те са с усложнена конструкция. Изискванията към многофункционалните транспортни ленти са многостранни, поради което се произвеждат от специални скъпи материали и са с ниска дълготрайност.Another disadvantage of this method and device is that they are complicated in design. The requirements for multifunctional conveyor belts are multifaceted, which is why they are made of special expensive materials and have low durability.

Задачата на изобретението е да се създаде метод и устройство за надлъжно заваряване на тръбни тела, осигуряващи повишено качество на заварката, като едновременно се намали и брака.It is an object of the invention to provide a method and apparatus for longitudinal welding of tubular bodies, providing improved welding quality, while reducing marriage.

ТЕХНИЧЕСКА СЪЩНОСТ НА ИЗОБРЕТЕНИЕТОSUMMARY OF THE INVENTION

Тази задача се решава, като се създава метод за надлъжно заваряване на тръбни тела, при който ламинатното фолио е лента, която се придвижва непрекъснато и съосно на дорник. Фолиото се огъва върху дорника до застъпване на двата му края за получаване на припокрити надлъжно краища, които в последствие се нагряват, притискат и след това охлаждат под натиск до получаване на заваръчния шев и накрая се получава тръбна заготовка, която се нарязва на тръбни тела. Припокритите краища на фолиото в процеса на загряване и разтапяне са на известно разстояние едно над друго, при което между тях се получава кухина и нагряването на зоната на припокриване се осъществява чрез подаване на топлина в тази кухина.This task is solved by creating a method for longitudinal welding of tubular bodies in which the laminate film is a belt that moves continuously and coaxially with the mandrel. The foil is bent over the mandrel until its two ends overlap to obtain coated ends, which are subsequently heated, compressed and then cooled under pressure to obtain a weld seam and finally a tubular bill is cut which is cut into tubular bodies. The overlapping edges of the foil in the process of heating and melting are at some distance over one another, whereby a cavity is formed between them and the overlapping zone is heated by supplying heat to that cavity.

Възможно е в метода за надлъжно заваряване на тръбни тела да има и допълнително нагряване под натиск до частично разтапяне на долния слой на надлъжния заварен шев от вътрешната страна на готовата тръбна заготовка с последващо охлаждане на заварения шев.In the method of longitudinal welding of tubular bodies, there may also be additional pressure heating to partially melt the lower layer of the longitudinal weld seam on the inside of the finished tubular workpiece with subsequent cooling of the welded seam.

Създава се и устройство за надлъжно заваряване на тръбни тела, състоящо се от дорник и транспортна система за придвижване на ламинатното фолио по дорника, около който това фолиото се огъва. Има и загряващ, охлаждащ и притискащ възел. След зоната на охлаждане има резачка за получаване на тръбни тела. Профилът на дорника в зоната на нагряването на припокритите краища на фолиото е със стъпало за • · ··· ·· · ♦ е · • · · ·· · ·· ·····♦· · · ·· ······· ·· ·· ·· ·· ···· ··· ··· формиране на кухина между краищата на фолиото. Този профил след зоната за нагряване плавно преминава в плоскост, при което се формира зоната на притискане.A device for the longitudinal welding of tubular bodies is also made up, consisting of a mandrel and a transport system for moving the laminate film on the mandrel, around which this film is bent. There is also a heating, cooling and compression assembly. After the cooling zone there is a cutter for receiving tubular bodies. The mandrel profile in the heating zone of the overlapped edges of the foil has a step for the · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Formation of a cavity between the edges of the foil. This profile, after the heating zone, moves smoothly into a plane, forming a pressure zone.

Загряващият възел е дюза за подаване на топъл газ в кухината. Над горния край има първа притискащо-охлаждаща пета с охладителен канал в нея, а над долния край има втора пета с охладителен канал в нея.The heating assembly is a nozzle for supplying hot gas into the cavity. Above the upper end there is a first pressure-cooling heel with a cooling channel in it, and above the lower end there is a second heel with a cooling channel in it.

Възможно е устройството за надлъжно заваряване на тръбни тела, след първата работна зона да има и допълнителна зона за нагряване, в която върху работната повърхност на дорника има фиксирана метална пластина, а над нея има високочестотен индуктор, който е и притискан.It is possible that the device for longitudinal welding of tubular bodies, after the first working area, has an additional heating zone, in which a metal plate is fixed on the working surface of the mandrel, and above it there is a high-frequency inductor, which is also pressed.

Възможно е в устройството за надлъжно заваряване на тръбни тела, металната пластина да е стъпаловидна по профила на заварения шев.It is possible that in the device for longitudinal welding of tubular bodies, the metal plate may be stepped along the profile of the weld.

Предимство на метод и устройство за надлъжно заваряване на тръбни тела е, че е с повишено качество на заварката, по-добър външен вид и по-нисък брак.An advantage of the method and device for longitudinal welding of tubular bodies is that it has better welding quality, better appearance and lower defects.

ОПИСАНИЕ НА ПРИЛОЖЕНИТЕ ФИГУРИDESCRIPTION OF THE FIGURES Attached

- Фиг. 1 е общ вид на устройството;- FIG. 1 is a general view of the device;

- Фиг. 2 е напречен разрез на устройството в зоната на нагряване (А-А);- FIG. 2 is a cross-section of the device in the heating zone (AA);

- Фиг. 3 е напречен разрез на устройството в зоната на притискане на фолиото след нагряването (В-В);- FIG. 3 is a cross-sectional view of the device in the foil compression zone after heating (B-B);

- Фиг. 4 е общ вид на устройството с допълнително нагряване и притискане;- FIG. 4 is a general type of device with additional heating and compression;

- Фиг. 5 е напречен разрез на устройството в зоната на допълнително нагряване и притискане с права пластина (С-С);- FIG. 5 is a cross-sectional view of the device in the zone of additional heating and compression with a straight plate (C-C);

- Фиг. 6 е напречен разрез на устройството в зоната на допълнително нагряване и притискане с профилирана пластина (С-С);- FIG. 6 is a cross-section of the device in the area of additional heating and compression with a profiled plate (CC);

ПРИМЕРНО ИЗПЪЛНЕНИЕ И ДЕЙСТВИЕ НА ИЗОБРЕТЕНИЕТОEXAMPLE IMPLEMENTATION AND ACTION OF THE INVENTION

По-подробно изобретението е пояснено с едно примерно изпълнение на метода и устройството за надлъжно заваряване на тръбни тела, показано на фигурите, където:In more detail, the invention is illustrated by an exemplary embodiment of the method and apparatus for longitudinal welding of tubular bodies shown in the figures, where:

Устройството за надлъжно заваряване на тръбни тела на фиг. 1, 2 и 3 се състои от дорник 1, транспортна система (непоказана на фигурите) за придвижване на ламинатното фолио 2 по дорника 1, около който това фолио 2 се огъва. Има и загряващ възел 3, охлаждащ и притискащ възел. След зоната на охлаждане има резачка 4 за получаване на тръбни тела. Профилът на дорника 1 в зоната на нагряването на припокритите краища 7 и 8 на фолиото 2 е със стъпало 5 за формиране на кухина 6The pipe longitudinal welding apparatus of FIG. 1, 2 and 3 consist of mandrel 1, a transport system (not shown in the figures) for moving the laminate film 2 along mandrel 1, around which this film 2 is bent. There is also a heating assembly 3, a cooling and pressure assembly. After the cooling zone there is a cutter 4 for receiving tubular bodies. The mandrel profile 1 in the heating zone of the overlapping edges 7 and 8 of the foil 2 has a step 5 to form a cavity 6

·· · · ·· · ··· ·· ···· ··· ·· · · · ······ · · ·· ·· ·· ···· ··· ··· между краищата 7 и 8 на фолиото 2. Този профил след зоната за нагряване плавно преминава в плоскост 9, при което между дорника 2 и притискащо-охлаждащата пета 10 се формира зоната на притискане. Загряващият възел 3 е дюза за подаване на топъл газ в кухината 6. Над края 7 има първа притискащо-охлаждаща пета 10 с охладителен канал 11 в нея, а над края 8 има втора притискащо-охлаждаща пета 12 с охладителен канал 13 в нея.· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 7 and 8 of the foil 2. This profile gradually moves into the plane 9 after the heating zone, whereby a pressing zone is formed between the mandrel 2 and the pressure-cooling heel 10. The heating unit 3 is a nozzle for supplying hot gas into the cavity 6. Above the end 7 there is a first pressure-cooling heel 10 with a cooling channel 11 therein, and above the end 8 there is a second pressure-cooling heel 12 with a cooling channel 13 therein.

На фиг. 4 и фиг. 5 устройството за надлъжно заваряване на тръбни тела, след първата работна зона има допълнителна зона за нагряване, в която върху работната повърхност на дорника 1 има фиксирана метална пластина 14, а над нея има високочестотен индуктор 15, който е и притискан.In FIG. 4 and FIG. 5, the device for longitudinal welding of tubular bodies, after the first working zone, has an additional heating zone, in which on the working surface of the mandrel 1 there is a fixed metal plate 14 and above it there is a high-frequency inductor 15, which is also pressed.

На фиг. 6 в устройството за надлъжно заваряване на тръбни тела, металната пластина 14 е стъпаловидна по профила на заварения шев.In FIG. 6 in the device for longitudinal welding of tubular bodies, the metal plate 14 is stepped along the profile of the weld.

Методът и устройството за надлъжно заваряване на тръбни тела работят по следния начин:The method and device for longitudinal welding of tubular bodies work as follows:

Фолиото 1, с помощта на транспортен механизъм (непоказан на фигурите), се привежда в движение с относително постоянна скорост. По пътя на фолиото 1 са разположени формоващи елементи (непоказани на фигурите), които го огъват около дорника 2. По-нататък единият край 7 на фолиото 1 преминава под притискащоохлаждаща пета 10, а другият край 8 под притискащо-охлаждаща пета 12. Стъпалото 5 на дорника 2 не позволява на двата края 7 и 8 на фолиото 2 да се допират и се образува кухина 6. В кухината 6 с помощта на дюза 3 се подава нагрят до подходяща температура горещ газ, така че за времето, за което даден участък от фолиото 2 премине през зоната, температурата на краищата му от страните, която ще влязат в контакт с цел заварка, да стане достатъчно висока за разтопяването му. При това разтопяването е ограничено само в тази част от фолиото, която не е в контакт с притискащо-охлаждащите пети 10 и 12 и дорника 1. При по-нататъшното придвижване на фолиото 2, вследствие промяната в профила на дорника 1, преминаващ в плоскост 9, краят 8 на фолиото 2 се повдига нагоре докато се притисне в края 7, а двата заедно в притискащо-охлаждащата пета 10. Под действие на притискащата сила разтопеният материал от двата края на фолиото се смесва и постепенно се охлажда, докато достигне температура по-ниска от тази на топене. По-нататък фолиото попада под резачката 4 за нарязване на отделни тръбни тела с необходимата дължина.The foil 1 is driven at a relatively constant speed by means of a transport mechanism (not shown in the figures). In the path of the foil 1 are molded elements (not shown in the figures) that bend it around the mandrel 2. Further, one end 7 of the foil 1 passes under the pressure-cooling heel 10 and the other end 8 under the pressure-cooling heel 12. The foot 5 the mandrel 2 prevents the two ends 7 and 8 of the foil 2 from touching and forming a cavity 6. Hot gas is supplied to the cavity 6 by means of a nozzle 3, so that for a time during which a portion of foil 2 passes through the zone, the temperature of its edges from the sides, which oh come into contact to weld to become high enough to melt it. In this case, the melting is limited only to that part of the foil which is not in contact with the pressure-cooling heels 10 and 12 and the mandrel 1. As the film 2 is further moved due to the change in profile of the mandrel 1 passing into the plane 9 , the end 8 of the foil 2 is lifted up until it is pressed at the end 7 and the two together in the pressure-cooling heel 10. Under the action of the pressing force, the molten material from the two ends of the foil is mixed and gradually cooled until it reaches a temperature of lower than that of melting. Further, the foil falls under the cutter 4 to cut individual tubular bodies of the required length.

: : · ♦ ♦ ··♦· ··· ·· · ·· • · · · · · · * · ·j ·· ·· ······ ······:: · ♦ ♦ ·· ♦ · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·

Когато се използва допълнителни загряване, върху дорника 1 има метална пластина 14, а над нея от външната страна на фолиото 1 индуктор 16. При подаване на високочестотно напрежение в индуктора 16, металната пластина 14 се загрява и предава топлинната енергия на фолиото 1, което се разтопява частично от вътрешната страна. В следствие на натиска от страна на индуктора 16 разтопения слой се разтича в страни, при което общата дебелина на шева се намалява. По-нататък фолиото излиза от участъка с металната пластина 14 и контактува с дорника 2, който не е нагрят и вследствие на това разтопения участък от фолиото 1 се охлажда отново. Металната пластина 14 може да има стъпаловидна форма, което спомага за нагряване и съответно разтапяне и на слой от фолиото, към който ще се завари разтеклия се от разтапянето на долната част на фолиото 1 материал. По-нататък фолиото 1 попада под резачката 4 за нарязване на отделни тръбни тела с необходимата дължина.When additional heating is used, there is a metal plate 14 on the mandrel 1, and an inductor 16 above it on the outside of the film 1. When a high-frequency voltage is applied to the inductor 16, the metal plate 14 heats up and transmits the thermal energy to the film 1, which melts partially on the inside. Due to the pressure from the inductor 16, the molten layer flows into the sides, reducing the total thickness of the seam. Further, the foil exits the region of the metal plate 14 and contacts the mandrel 2 which is not heated and as a result the molten portion of the foil 1 is cooled again. The metal plate 14 may have a stepped shape, which helps to heat and, accordingly, to melt and to a layer of foil to which will be welded the melt flowing from the melting of the bottom of the foil 1 material. Further, the foil 1 falls under the cutter 4 to cut individual tubular bodies of the required length.

Claims (5)

ПАТЕНТНИ ПРЕТЕНЦИИ......Patent Claims ...... 1. Метод за надлъжно заваряване на тръбни тела, при който ламинатното фолио е лента, която се придвижва непрекъснато и съосно на дорник, като фолиото се огъва върху дорника до застъпване на двата му края за получаване на припокрити надлъжно краища, които в последствие се нагряват, притискат и след това охлаждат под натиск до получаване на заваръчния шев и накрая се получава тръбна заготовка, която се нарязва на тръбни тела, характеризиращ се с това, че припокритите краища на фолиото в процеса на загряване и разтапяне са на известно разстояние едно над друго, при което между тях се получава кухина и нагряването на зоната на припокриване се осъществява чрез подаване на топлина в тази кухина.1. A method of longitudinal welding of tubular bodies in which the laminate film is a strip that moves continuously and coaxially with the mandrel, the film being bent on the mandrel until its two ends overlap to obtain overlapped edges that subsequently heat up , pressed and then cooled under pressure to obtain a weld, and finally a tubular billet is obtained, which is cut into tubular bodies, characterized in that the overlapped edges of the film during the heating and melting process are at a certain distance one above the other, whereby a cavity is formed between them, and the heating of the overlapping zone is effected by supplying heat to that cavity. 2. Метод за надлъжно заваряване на тръбни тела съгласно претенция 1, характеризиращ се с това, че се осъществява допълнително нагряване под натиск до частично разтапяне на долния слой на надлъжния заварен шев от вътрешната страна на готовата тръбна заготовка с последващо охлаждане на заваръчния шев.2. The method for longitudinal welding of tubular bodies according to claim 1, characterized in that additional heating is carried out under pressure to partially melt the lower layer of the longitudinal weld seam on the inside of the finished tubular workpiece with subsequent cooling of the welding seam. 3. Устройство за надлъжно заваряване на тръбни тела, състоящо се от дорник 1, транспортна система за придвижване на ламинатното фолио 2 по дорника 1, около който това фолио 2 се огъва, при което има загряващ възел 3, охлаждащ и притискащ възел, след зоната на охлаждане има резачка 4 за получаване на тръбни тела, характеризиращо се с това, че профилът на дорника 1 в зоната на нагряването на припокритите краища 7 и 8 на фолиото 2 е със стъпало 5 за формиране на кухина 6 между краищата 7 и 8 на фолиото 2, а този профил след зоната за нагряване плавно преминава в плоскост 9, който профил формира зоната на притискане, а загряващият възел 3 е дюза за подаване на топъл газ в кухината 6, като над края 7 има първа притискащо-охлаждаща пета 10 е охладителен канал 11 в нея, а над края 8 има втора пета 12 с охладителен канал 13 в нея.3. A device for longitudinal welding of tubular bodies, consisting of mandrel 1, a conveyor system for moving the laminate film 2 along the mandrel 1, around which this film 2 is bent, whereby there is a heating assembly 3, a cooling and pressing assembly, after the zone for cooling there is a cutter 4 for producing tubular bodies, characterized in that the profile of the mandrel 1 in the heating zone of the overlapped edges 7 and 8 of the foil 2 has a step 5 for forming a cavity 6 between the ends 7 and 8 of the foil 2, and this profile passes smoothly after the heating zone in the plane 9, which profile forms the compression zone, and the heating assembly 3 is a nozzle for supplying hot gas into the cavity 6, with above the end 7 having a first pressure-cooling heel 10 being a cooling channel 11 therein, and above the end 8 having a second fifth 12 with cooling channel 13 therein. 4. Устройство за надлъжно заваряване на тръбни тела, съгласно претенция 3, характеризиращо се с това, че след първата работна зона има допълнителна зона за нагряване, в която върху работната повърхност на дорника 1 има фиксирана метална пластина 14, а над нея има високочестотен индуктор 15, който е и притискан.4. Pipe welding device according to claim 3, characterized in that after the first working zone there is an additional heating zone in which a metal plate 14 is fixed on the working surface of the mandrel 1 and a high-frequency inductor is above it. 15, which is also pressed. 5. Устройство за надлъжно заваряване на тръбни тела, съгласно претенция 4, характеризиращо се е това, че металната пластина 14 е стъпаловидна по профила на заварения шев.5. A pipe longitudinal welding device according to claim 4, characterized in that the metal plate 14 is stepped along the weld profile. вефератwerfat ЕТОД И УСТРОЙСТВО ЗА НАДЛЪЖНО ЗАВАРЯВАНЕ НА ТРЪБНИ ТЕЛАFLOOR AND DEVICE FOR THE DETERMINATION OF PIPE BODIES Методът и устройството са приложими врроизводство на туби* бутилки, кутии и \др. Той е с повишено качество на заварката, подобрен външен вид и нисък брак. Фолиото 1, се привежда в движение с относително постоянна скорост и се огъва около дорника 2. Единият край 7 на фолиото преминава под притискащо-охлаждаща пета 10, а другият край 8 под притискащо-охлаждаща пета 12. Стъпалото 5 на дорника не позволява на двата края на фолиото да се допират. В кухината 6 с дюза 3 се подава нагрят горещ газ. При това разтопяването е ограничено само в тази част от фолиото, която не е в контакт е притискащо-охлаждащите пети и дорника. При по-нататъшното придвижване на фолиото, вследствие промяната в профила на дорника, преминаващ в плоскост 9, краят 8 на фолиото се повдига нагоре докато се притисне в края 7, а двата заедно в притискащо-охлаждащата пета. По-нататък фолиото попада под резачката 4 за нарязване на отделни тръбни тела с необходимата дължина.The method and the device are applicable in the production of tubes, bottles, cans, etc. It has improved welding quality, improved appearance and low marriage. The foil 1 is driven at a relatively constant speed and bends around the mandrel 2. One end 7 of the foil passes under the pressure-cooling heel 10 and the other end 8 under the pressure-cooling heel 12. The foot 5 of the mandrel prevents both. touch the ends of the foil. Hot gas is fed into the cavity 6 with nozzle 3. In this case, the melting is limited only to that part of the film which is not in contact is the pressure-cooling heels and mandrel. As the film is moved further, as a result of the change in the profile of the mandrel passing in the plane 9, the end 8 of the film is lifted upward until it is pressed at the end 7 and the two together in the pressure-cooling heel. Further, the foil falls under the cutter 4 to cut individual tubular bodies of the required length.
BG10110848A 2011-02-08 2011-02-08 A method and device for longitudinal welding of tubular bodies BG110848A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BG10110848A BG110848A (en) 2011-02-08 2011-02-08 A method and device for longitudinal welding of tubular bodies
PCT/BG2012/000009 WO2012106783A1 (en) 2011-02-08 2012-04-04 Method and apparatus for longitudinal welding of tubular body
EP12722667.8A EP2673131A1 (en) 2011-02-08 2012-04-04 Method and apparatus for longitudinal welding of tubular body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG10110848A BG110848A (en) 2011-02-08 2011-02-08 A method and device for longitudinal welding of tubular bodies

Publications (1)

Publication Number Publication Date
BG110848A true BG110848A (en) 2012-08-31

Family

ID=46147216

Family Applications (1)

Application Number Title Priority Date Filing Date
BG10110848A BG110848A (en) 2011-02-08 2011-02-08 A method and device for longitudinal welding of tubular bodies

Country Status (3)

Country Link
EP (1) EP2673131A1 (en)
BG (1) BG110848A (en)
WO (1) WO2012106783A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021121988B4 (en) * 2021-08-25 2024-06-06 Roland Wolf Device for producing film tubes from a film strip using the form-shoulder welding process

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388017A (en) 1963-12-18 1968-06-11 American Can Co Tube making method and apparatus
CH642590A5 (en) * 1979-07-26 1984-04-30 Tetra Pak Dev METHOD AND DEVICE FOR CONNECTING THE EDGE AREAS OF RAILWAYS, ESPECIALLY IN THE PRODUCTION OF A HOSE.
JPS58122819A (en) 1982-01-18 1983-07-21 Toppan Printing Co Ltd Tube manufacturing method and manufacturing device
US20120193017A1 (en) 2009-07-31 2012-08-02 Gerhard Keller Method and device for sealing tubular plastic packaging, and resulting packaging

Also Published As

Publication number Publication date
EP2673131A1 (en) 2013-12-18
WO2012106783A4 (en) 2012-11-22
WO2012106783A1 (en) 2012-08-16

Similar Documents

Publication Publication Date Title
JP5513117B2 (en) Method and apparatus for internal welding of plastic tubes
US5310443A (en) Apparatus for the production of tubular bodies
US3413175A (en) Device for welding together the terminal edges of superposed layers of thermoplastic material
RU2673511C2 (en) Method and device for making composite material
EP1184126A3 (en) Laser lamp welding process of welding together overlapped plated steel sheets
US10183356B2 (en) Welding tool comprising a shoulder, welding method and workpiece
RU2524964C2 (en) Method and device for soldering of tubular polymer package and package thus produced
JP2005254282A (en) Method for producing butt-welded metal plate by laser
CN113165277B (en) Flexible pipe body for packaging pipe, its manufacturing method and its manufacturing equipment
BG110848A (en) A method and device for longitudinal welding of tubular bodies
CA1322897C (en) Method and apparatus for producing tubular bodies, particularly for packaging tubes
CN102036806B (en) Assembly for head welding
RU2538258C2 (en) Device for soldering of area of film connection with connecting part, application, method, plant and package to this end
EP4003703B1 (en) Impulse heat sealing of a heat-sealable film material
JP2002523258A (en) Method of manufacturing heat-sealed pack and tool for implementing the method
JPH11123451A (en) Steel pipe manufacturing equipment line
JP2006218497A (en) Laser welding method for plate material
WO2007137374A1 (en) Process and machine for making a tube-pack
CN202878682U (en) Welding device for all-plastic composite sheet
US2558889A (en) Method and apparatus for progressively electric resistance butt welding seams at high speed
US3329070A (en) Production of bags from thermoplastic sheeting
CN102886896B (en) Full-plastic composite sheet welding device
US20240351301A1 (en) Method and tubular bag machine for the continuous production of block-bottom bags
KR20150034524A (en) Fusion manufacturing device of waterproof sheet
KR20230068883A (en) Disposable LDPE glove forming device capable of uniform edge cutting