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WO2009074999A2 - Tulipeuse/machine d'emmanchement améliorée - Google Patents

Tulipeuse/machine d'emmanchement améliorée Download PDF

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Publication number
WO2009074999A2
WO2009074999A2 PCT/IN2008/000657 IN2008000657W WO2009074999A2 WO 2009074999 A2 WO2009074999 A2 WO 2009074999A2 IN 2008000657 W IN2008000657 W IN 2008000657W WO 2009074999 A2 WO2009074999 A2 WO 2009074999A2
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
belling
socket
section
improved
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IN2008/000657
Other languages
English (en)
Other versions
WO2009074999A3 (fr
Inventor
Naresh Jayendrarai Joshipara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2009074999A2 publication Critical patent/WO2009074999A2/fr
Publication of WO2009074999A3 publication Critical patent/WO2009074999A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/02—Belling or enlarging, e.g. combined with forming a groove
    • B29C57/04—Belling or enlarging, e.g. combined with forming a groove using mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/023—Half-products, e.g. films, plates
    • B29B13/024—Hollow bodies, e.g. tubes or profiles
    • B29B13/025—Tube ends
    • 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
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/002—Handling tubes, e.g. transferring between shaping stations, loading on mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • B29D23/003—Pipe joints, e.g. straight 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/355—Conveyors for extruded articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings

Definitions

  • the present invention relates to belling/socketing machine for PVC (Polyvinyl Chloride, uPVC, CPVC and Foam Core Multilayer) pipes.
  • PVC Polyvinyl Chloride, uPVC, CPVC and Foam Core Multilayer
  • the present invention provides an improved process, and a machine, by which the geometrical accuracy of the socket of the pipe is consistently achieved, even at higher extrusion line speeds, in such a way that the process cycle time is considerably reduced thereby improving the productivity and throughput of the Pipe belling/socketing machine.
  • Belling/socketing machine are widely used to join PVC pipes together by enlarging one end of the pipe, allowing other end of the next pipe to be inserted, forming a continuous line to carry liquids under pressure.
  • various industry standard methods exist in which the joints are sealed by solvent cement, rubber ring or other suitable means.
  • the Belling/socketing machine output has to proportionately match with the increased throughput of extrusion line.
  • Heating time depends largely on pipe diameter, PVC compound and pipe wall thickness. For a given pipe diameter and wall thickness, heating time can not be altered drastically by changing process parameters of heating process. Therefore it can be assumed that for a given pipe diameter and wall thickness heating time is fixed. Similarly, cooling time is also fixed at forming station, which can not be reduced drastically due to inherent properties of the pipe.
  • peripheral machine functions on which the accuracy of the socket, and the throughput are dependent.
  • peripheral functions such as positioning the pipe, transfer the pipe between various stations, speed of clamping, speed, of forming etc.
  • An additional positioning station might be placed between heating station and forming station, but leads to unnecessary cooling of the pipe at this station.
  • the process of positioning of the pipe is done parallel to heating process, which significantly reduces overall cycle time of the process, with the help of a reciprocating device.
  • the proposed machine provides better sensing accuracy, for measurement of socket length along ' with repeatability offered by control device and efficacy of control system to pick and analyze measurement signals at various line speeds. In this case sensing is done, when the pipe is stationary.
  • the proposed machine offers better positioning accuracy of the pipe depending on the dimensions of the zone to be heated. Thus, plays an important role in heating operation.
  • the pipe is positioned with very small movement of the pipe at low velocity.
  • the main object of the proposed invention is to allow simultaneous operations of heating of pipe end as well as positioning of the pipe thus reduce overall cycle time of the entire belling/socketing process.
  • Another object of the proposed invention is to offer an improved machine which effectively matches the throughput of the extrusion line in proportion with the hourly production rate.
  • Another object of the proposed invention is to provide better sensing accuracy for measurement of socket length along with repeatability offered by control device 'and efficacy of control system to pick and analyze measurement signals at various line speeds.
  • the proposed invention can best be understood with reference to a simplified discussion of the prior art.
  • Refer Fig 1. The existing invention for pipe belling/socketing machine mainly comprises of three sections:
  • Receiving end section - Pipe (1.1), Line of extrusion (1.2), pipe pulling device (1.3), pipe edge sensor(1.4), pipe support and transfer system (1.5).
  • Heating section - Plurality of pipe heating ovens (1.6).
  • Forming section - Socket shape formation tool (1.7), clamping arrangement (1.8), socket length control conveyor (1.9), socket length position control sensor (1.10).
  • Fig. 1 shows the schematic of pipe belling/socketing machine existing process.
  • Pipe (1.1) through the line of extrusion (1.2) is pulled by a pipe pulling device (1.3) positioned at the receiving end section of pipe belling/socketing machine, with the help of signal generated by pipe edge sensor (1.4).
  • Pipe (1.1) at the receiving end section is transferred to heating section through pipe support and transfer system (1.5).
  • Heating section comprise of plurality of pipe heating ovens (1.6).
  • Pipe (1.1) is heated in the plurality of pipe heating ovens (1.6) to make it soft at the socket formation end. Generally, heating is relatively a slow operation.
  • the heated pipe (1.1) is further transferred to forming section through pipe support and transfer system (1.5).
  • pipe (1.1) end is sensed by socket length position control sensor (1.10) coupled through hard wiring to the controller (not shown in fig) applies correction to the position of the pipe with socket length control conveyor (1.9) and exact position is achieved by back and forth movement of the pipe (1.1).
  • the movement of pipe (1.1) considerably increases cycle time and reduces throughput of the machine. Also sensing of the edge of the pipe (1.1) is done by sensor (1.10), while pipe (1.1) is moving, which leads to inaccuracy and associated problems due to dynamic response of the system.
  • Fig. 2 shows the schematic of improved pipe belling/socketing machine.
  • Fig.3 shows plan view of heating section which includes plurality of pipe heating ovens and socket length adjustment and control device.
  • Fig 4 shows the improved pipe clamping arrangement.
  • the proposed invention comprises of three sections:
  • Receiving end section - Pipe (2.1), Line of extrusion (2.2), pipe pulling device (2.3), pipe edge sensor (2.4), pipe support and transfer system (2.5).
  • Heating section - Plurality of pipe heating ovens (2.6), socket length adjustment and control device (2.7).
  • Forming section - Socket shape formation tool (2.8), Pipe clamping arrangement (2.9).
  • Pipe (2.1) through the line of extrusion (2.2) is pulled by a pipe pulling device (2.3), positioned at the receiving end section of pipe belling/socketing machine.
  • Pipe edge sensor (2.4) placed at receiving end section senses the edge of-pipe (2.1), and positions the pipe (2.1) for Heating Section.
  • Pipe (2.1) at the receiving end section is transferred to heating section with the help of pipe support and transfer system (2.5) without any axial movement of pipe (2.1).
  • pipe support and transfer system (2.5) transfers pipe (2.1) between adjacent sections without any axial movement of pipe (2.1).
  • plurality of pipe heating ovens (2.6) come forward and heat the End portion of pipe (2.1)to make it soft at the socket formation end.
  • socket length adjustment and control device (2.7) which is air/hydraulic/ mechanical cam actuated device, placed on one of the plurality of pipe heating ovens (2.6), adjusts the length and positions the pipe (2.1) with respect to socket shape formation tool (2.8) at which socket is to be formed and that position is sensed by a non contact type of sensor (not shown in fig-) Referring to Fig 3, the process of positioning of the pipe (2.1) is done parallel to heating process, which significantly reduces overall cycle time of the process. The adjustment over a wide range of socket length and position of the pipe (2.1) where socket is to be formed is done when the pipe (2.1) is stationary, which in turn gives better accuracy of position. Now, pipe (2.1) is further transferred to the forming section by pipe support and transfer system (2.5), without any axial movement of the pipe (2.1). Socket length adjustment and control device (2.7) can be in the form of mechanical, pneumatic or hydraulic actuation.
  • pipe (2.1) is clamped in place by air/hydraulic actuating pipe clamping arrangement (2.9).
  • the Pipe clamping arrangement (2.9) is suitably modified, so that there is no axial movement required for the pipe (2.1) at the forming station.
  • the socket shape formation tool (2.8) is inserted into pipe (2.1), and the socket is formed.
  • the pipe (2.1) is cooled and to form proper shape external pneumatic pressure is applied in closed Cooling Chamber (Not shown).
  • the socket shape formation tool (2.8) is withdrawn and then pipe (2.1) is directly delivered in the outlet bin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Robotics (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

La présente invention concerne une tulipeuse/machine d'emmanchement améliorée divisée en trois sections. La première section, qui est la section d'extrémité de réception, est composée d'une ligne d'extrusion traversant le tuyau et tirée par le dispositif de traction de tuyau, d'un capteur de bord de tuyau qui détecte le bord du tuyau et positionne le tuyau pour la section de chauffage et d'un système de support et de transfert de tuyau qui transfère le tuyau aux sections adjacentes. La deuxième section, qui est la section de chauffage, est composée d'une pluralité de fours de chauffage de tuyau, la partie d'extrémité du tuyau étant chauffée pour être assouplie à l'extrémité de formation de manchon, d'un dispositif de réglage et de contrôle de la longueur de manchon qui règle la longueur et positionne le tuyau par rapport à l'outil de formation de manchon au niveau duquel le manchon doit être formé. La troisième section, qui est la section de formation, est composée d'un dispositif de fixation de tuyau, le tuyau étant fixé par un dispositif de fixation de tuyau à actionnement pneumatique/hydraulique, et d'un outil de formation de manchon qui est inséré dans le tuyau et forme le manchon.
PCT/IN2008/000657 2007-10-22 2008-10-10 Tulipeuse/machine d'emmanchement améliorée Ceased WO2009074999A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN2085/MUM/2007 2007-10-22
IN2085MU2007 2007-10-22

Publications (2)

Publication Number Publication Date
WO2009074999A2 true WO2009074999A2 (fr) 2009-06-18
WO2009074999A3 WO2009074999A3 (fr) 2009-08-06

Family

ID=40718769

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2008/000657 Ceased WO2009074999A2 (fr) 2007-10-22 2008-10-10 Tulipeuse/machine d'emmanchement améliorée

Country Status (1)

Country Link
WO (1) WO2009074999A2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015162531A1 (fr) * 2014-04-22 2015-10-29 Sica S.P.A. Poste permettant de chauffer des tuyaux en matière thermoplastique
IT201600104755A1 (it) * 2016-10-18 2018-04-18 Sica Spa Apparecchiatura e metodo di riscaldamento di tubi in materiale termoplastico.
CN111452342A (zh) * 2020-04-10 2020-07-28 朱彬祥 一种绝缘橡胶管加工处理工艺
CN113276400A (zh) * 2021-05-18 2021-08-20 宜宾天亿新材料科技有限公司 Pvc-o管材扩口装置及其扩口方法
IT202200014644A1 (it) * 2022-07-12 2024-01-12 Sica Spa Apparato e metodo di distribuzione di tubi in materiale termoplastico ad una macchina bicchieratrice.
CN118810011A (zh) * 2024-09-19 2024-10-22 江苏沅通管业有限公司 一种塑料管管口后处理用扩口设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014640A (en) * 1970-08-07 1977-03-29 Vern Emery Company, Inc. Pipe belling and chamfering machine
US3923443A (en) * 1970-08-07 1975-12-02 Vern Emery Company Inc Pipe belling and chamfering machine
US3849052A (en) * 1973-07-19 1974-11-19 J Gordon Pipe belling machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015162531A1 (fr) * 2014-04-22 2015-10-29 Sica S.P.A. Poste permettant de chauffer des tuyaux en matière thermoplastique
US10272612B2 (en) 2014-04-22 2019-04-30 Sica S.P.A. Station for heating pipes made of thermoplastic material
IT201600104755A1 (it) * 2016-10-18 2018-04-18 Sica Spa Apparecchiatura e metodo di riscaldamento di tubi in materiale termoplastico.
WO2018073695A3 (fr) * 2016-10-18 2018-12-27 Sica S.P.A. Appareil et procédé de chauffage de tuyaux composés de matériau thermoplastique
US11541578B2 (en) 2016-10-18 2023-01-03 Sica S.P.A. Apparatus and method for heating pipes made of thermoplastic material
CN111452342A (zh) * 2020-04-10 2020-07-28 朱彬祥 一种绝缘橡胶管加工处理工艺
CN113276400A (zh) * 2021-05-18 2021-08-20 宜宾天亿新材料科技有限公司 Pvc-o管材扩口装置及其扩口方法
CN113276400B (zh) * 2021-05-18 2022-09-06 宜宾天亿新材料科技有限公司 Pvc-o管材扩口装置及其扩口方法
IT202200014644A1 (it) * 2022-07-12 2024-01-12 Sica Spa Apparato e metodo di distribuzione di tubi in materiale termoplastico ad una macchina bicchieratrice.
EP4306296A1 (fr) * 2022-07-12 2024-01-17 Sica S.P.A. Dispositif et procédé pour la distribution de tuyaux en matière thermoplastique à une machine à cloche
CN118810011A (zh) * 2024-09-19 2024-10-22 江苏沅通管业有限公司 一种塑料管管口后处理用扩口设备

Also Published As

Publication number Publication date
WO2009074999A3 (fr) 2009-08-06

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