EP1483067B1 - Dispositif de retrait d'une barre produite dans une extrudeuse a barre et tuyau - Google Patents

Dispositif de retrait d'une barre produite dans une extrudeuse a barre et tuyau Download PDF

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Publication number
EP1483067B1
EP1483067B1 EP03711833A EP03711833A EP1483067B1 EP 1483067 B1 EP1483067 B1 EP 1483067B1 EP 03711833 A EP03711833 A EP 03711833A EP 03711833 A EP03711833 A EP 03711833A EP 1483067 B1 EP1483067 B1 EP 1483067B1
Authority
EP
European Patent Office
Prior art keywords
carriage
strand
accordance
motor means
force
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03711833A
Other languages
German (de)
English (en)
Other versions
EP1483067A1 (fr
Inventor
Nikolaus Jakoby
Johannes Steves
Stephan Frehe
Herbert Süther
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.)
SMS Group GmbH
Original Assignee
SMS Eumuco GmbH
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 SMS Eumuco GmbH filed Critical SMS Eumuco GmbH
Publication of EP1483067A1 publication Critical patent/EP1483067A1/fr
Application granted granted Critical
Publication of EP1483067B1 publication Critical patent/EP1483067B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels for metal extruding
    • B21C35/02—Removing or drawing-off work

Definitions

  • the invention relates to a device for removing a strand produced in a strand or pipe press, which has at least one driven, linearly movable slide which is movable in the withdrawal direction of the strand and which can exert a tensile force on the strand.
  • a device of this kind is known from EP 0 300 262 B1.
  • To produce a high quality strand in a string or tube press it has been found necessary to strip the strand from the die of the extrusion or tube press with a defined withdrawal force. This ensures that strand formation in the matrix is not adversely affected.
  • a puller is described in which the end of the strand to be withdrawn is mounted on a carriage movably mounted on a rail. The carriage communicates with drive means, so that a tensile force can be exerted on the strand.
  • the tensile force is composed of various components, wherein in particular a component is determined as a function of the extruded strand length.
  • GB 2 174 516 A discloses a device for regulating an extraction device with which an extruded profile emerging from an extruder is pulled out.
  • the extractor is doing by means of a drive in Extraction direction moves in which the actual speed at which the extruder moves, is detected by means of a speed sensor and a speed controller is supplied as a setpoint that controls the speed of the drive of the extractor, with a traction control is provided with adjustable setpoint.
  • a driving device influenced by the applied pulling force is connected between the extracting device and its drive, which is acted upon by a setting cylinder and permits a relative movement between a drive element of the drive and the extracting device.
  • a displacement transducer is provided, via which this relative movement is applied to the speed controller as a disturbance variable.
  • the drives of the extractor and the driving device are in a control technology coupling.
  • the carriage has a mass and is driven by a motor.
  • the speed and the torque of the motor can be specified by a controller.
  • act on the carriage the engine power, the pull force exerted on the extruded profile, the frictional force due to the storage of the carriage and the inertia force, which is dependent on the current acceleration of the carriage. Only in the static case - because here the speed and thus the friction are zero - applies that the engine power corresponds to the withdrawal force.
  • the invention is therefore based on the object, a device for removing a strand train so that the aforementioned disadvantages are overcome, in particular to produce lightweight profiles without loss of quality.
  • a second carriage is arranged, which is movable relative to the first carriage in stripping, wherein the strand to be deducted on the second carriage can be fixed, wherein the second carriage relative to the first carriage by means of a second motor means is movable and wherein the second motor means is controllable or regulated independently of the first motor means
  • the entire carriage mass is divided into two parts.
  • the first slide is moved as known. Deviations from the predetermined pull-off force on the strand, which may be constant or run according to a predetermined function, are compensated, in particular corrected, via a corresponding dynamic actuation of the second slide. Since this only the relatively small mass of the second carriage must be moved, the system has a much higher dynamics, which makes it possible to comply with the specified withdrawal force much more precise.
  • the withdrawal force exerted on the strand is always kept according to a given profile or value.
  • the motor means are preferably designed as a controllable motor, in particular as a servomotor.
  • the motor means connect via transmission means the first and the second carriage with each other.
  • the gear means are advantageously a pinion rack system, a sprocket chain system, a belt pulley system or a rope pulley system.
  • At least one sensor is arranged on the first and / or second carriage.
  • the sensor is in particular a such for measuring the acceleration of the second carriage in question (accelerometer). This should be able to measure accelerations within an accuracy range of +/- 1 g.
  • a sensor can be provided, which detects the position of the second carriage relative to the first carriage (odometer).
  • a sensor can be provided which detects the force exerted by the second carriage on the end of the strand or on the strand (force meter).
  • the signal measured by the sensor or the signals measured by the sensors can be fed into control and / or regulating means which, depending on the measured values determined by the sensor or dependent on the measured values for influencing the pull-off force exerted on the strand the engine means act. This is especially thought of that the control and / or regulating means affect the torque of the engine means.
  • a precise control of the withdrawal force can be ensured if the mass of the first carriage is at least twice, preferably at least five times to at least ten times, the mass of the second carriage.
  • the device may have more than one first carriage with respective second carriage.
  • the first carriages can be arranged one behind the other in the direction of withdrawal.
  • the withdrawal force exerted on the strand can be applied precisely according to a predetermined value or a predetermined course, since the system according to the invention allows high dynamics, the exact following of the actual value allows a predetermined target value.
  • Fig. 1 only a very schematic of the conceptual design of a puller 1 is shown.
  • a strand 3 is pressed, which leaves the strand or tube press 2 in withdrawal direction L.
  • the pull-off force can be constant, but can also build up in accordance with a functional profile via the pull-off path (compare EP 0 300 262 B1).
  • the puller 1 has the following structure:
  • a first carriage 4 is moved on a linear guide 11 in withdrawal direction L.
  • a motor 12 is provided, which provides for example via a belt 13 and a guide roller 14 for the linear movement of the first carriage 4.
  • a linear guide 15 is arranged, on which a second carriage 5 is arranged relative to the first carriage 4 in Abziehicardi L linearly displaceable.
  • the front end 6 of the strand 3 to be pulled off is connected to the second carriage 5.
  • the second carriage 5 is moved relative to the first carriage 4 by motor means 7 and gear means 8.
  • the motor means 7 is preferably a controllable synchronous servomotor.
  • gear means 8 As a gear means 8, a rack and pinion system has been proven.
  • the puller 1 is equipped with sensors 9, which make it possible to determine process variables which influence the pull-off force acting on the puller 1 on the front end 6 of the strand 3.
  • sensors 9 which make it possible to determine process variables which influence the pull-off force acting on the puller 1 on the front end 6 of the strand 3.
  • an acceleration sensor 9 ' is present, which detects the acceleration of the second carriage 5.
  • a displacement sensor 9 " is provided, which measures the relative positional position of the first carriage 4 relative to the second carriage 5.
  • a force sensor 9 '" detects the withdrawal force exerted on the end 6 of the strand 3.
  • the data acquired by the sensors 9 ', 9 "and 9''' are fed to a control or regulating means 10.
  • the desired pull-off force which is to be exerted on the end 6 of the strand 3 is stored in the latter be specified as a function on the trigger path variable.
  • the control and / or regulating means 10 acts on the motor means 7 and influences in particular the torque which is exerted by the motor means 7.
  • the first carriage 4 has a mass M, the mass of the second carriage is denoted by m.
  • the mass M of the first carriage 4 is at least five times, preferably at least ten times, the mass m of the second carriage 5;
  • the mass m of the second carriage 5 is thus preferably an order of magnitude smaller than the mass M of the first carriage 4.
  • a high dynamics of the system is facilitated by the fact that the mass moment of inertia of the motor means 7 (servo motor) is kept small.
  • the dynamic behavior of the system is positively influenced by a rigid design of the transmission means 8 in the form of a rack and pinion system.
  • the frictional force between the first carriage 4 and the second carriage 5 can be kept almost proportional to the speed by a precisely operating linear guide 15 and the shielding of dirt. It can therefore be computationally compensated by the control and / or regulating means 10.
  • the mass force is due to the low mass m of the second carriage 5 correspondingly low, so that compliance with the withdrawal force is much easier to control than in conventional systems.
  • the first carriage 4 can be operated in a known manner in position control.
  • the friction between the first carriage 4 and linear guide 11 and the relatively large mass M of the first carriage 4 no longer have a negative effect on the withdrawal force on the strand, since compliance with predetermined values for the withdrawal force by appropriate control of the motor means 7 and thus the Movement of the second carriage 5 can be maintained.
  • Fig. 2 the puller 1 is again outlined in a perspective view; Figures 3, 4 and 5 show the puller in side view, top view and Front view.
  • the registered reference numerals are the same as the above numbered components or means.
  • the system can also be designed as a double-take-off device in order to be able to pull off and guide light-metal profiles that run out of single-stranded or multi-stranded material.
  • two first carriages 4 are guided independently of each other on the linear guide 11 (see Fig. 1), so that cross-working (so-called alternating operation) is also possible with "flying saw” or conventional operation with a first carriage 4.
  • the linear guide can be mounted laterally next to the outlet track of the strand 3 on hall floor.
  • the double-puller may each have a roadway (linear guide) for the first carriage, with an attachment to a support structure laterally next to the outlet path of the strand is possible.
  • pneumatically operated profile clamping devices can be provided with clamping segments for adaptation to the profile contour to ensure a secure gripping of the front end 6 of the strand 3.
  • the puller device with the explained principle can also be refined to the effect that a third slide (and optionally further slide) is arranged on the second slide and, like the second slide, is driven separately.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Electric Cable Installation (AREA)
  • Ropes Or Cables (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Claims (10)

  1. Dispositif (1) pour l'enlèvement d'une barre (3) générée dans une extrudeuse ou une boudineuse à tuyaux (2), qui présente au moins un premier chariot (4) entraîné et mobile dans le sens linéaire, lequel peut être déplacé dans le sens d'enlèvement (L) de la barre (3) au moyen d'un premier moyen à moteur (12) et exerce une force de traction sur la barre (3),
    caractérisé en ce que
    sur le premier chariot (4) est disposé un second chariot (5), qui peut être déplacé par rapport au premier chariot (4) dans le sens d'enlèvement (L), la barre (3) à enlever pouvant être fixée sur le second chariot (5), le second chariot (5) pouvant être déplacé par rapport au premier chariot (4) au moyen d'un second moyen à moteur (7) et le second moyen à moteur (7) pouvant être commandé ou réglé indépendamment du premier moyen à moteur (12).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    les moyens à moteur (7) sont un moteur réglable, en particulier un servomoteur.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    les moyens à moteur (7) relient par le biais de moyens d'engrenage (8) le premier et le second chariots (4, 5).
  4. Dispositif selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    au moins un capteur (9) est disposé sur le premier et/ou le second chariots (4, 5).
  5. Dispositif selon la revendication 4,
    caractérisé en ce que
    le capteur (9') détecte l'accélération du second chariot (5).
  6. Dispositif selon la revendication 4,
    caractérisé en ce que
    le capteur (9'') détecte la position du second chariot (5) par rapport au premier chariot (4).
  7. Dispositif selon la revendication 5,
    caractérisé en ce que
    le capteur (9'') détecte la force exercée par le second chariot (5) sur l'extrémité (6) de la barre (3).
  8. Dispositif selon l'une quelconque des revendications 4 à 7,
    caractérisé par
    des moyens de commande et/ou de réglage (10), qui agissent sur les moyens à moteur (7) en fonction des valeurs mesurées déterminées pour influencer la force de traction exercée sur l'extrémité (6) de la barre (3).
  9. Dispositif selon la revendication 8,
    caractérisé en ce que
    les moyens de commande et/ou de réglage (10) influencent le couple des moyens à moteur (7).
  10. Dispositif selon l'une quelconque des revendications 1 à 9,
    caractérisé en ce que
    la masse (M) du premier chariot (4) correspond au moins au double de la masse (m) du second chariot (5).
EP03711833A 2002-03-11 2003-02-26 Dispositif de retrait d'une barre produite dans une extrudeuse a barre et tuyau Expired - Lifetime EP1483067B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10210475 2002-03-11
DE10210475A DE10210475B4 (de) 2002-03-11 2002-03-11 Vorrichtung zum Abziehen eines in einer Strang- oder Rohrpresse erzeugten Strangs
PCT/DE2003/000599 WO2003076098A1 (fr) 2002-03-11 2003-02-26 Dispositif de retrait d'une barre produite dans une extrudeuse a barre et tuyau

Publications (2)

Publication Number Publication Date
EP1483067A1 EP1483067A1 (fr) 2004-12-08
EP1483067B1 true EP1483067B1 (fr) 2006-07-05

Family

ID=27797639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03711833A Expired - Lifetime EP1483067B1 (fr) 2002-03-11 2003-02-26 Dispositif de retrait d'une barre produite dans une extrudeuse a barre et tuyau

Country Status (7)

Country Link
US (1) US7125240B2 (fr)
EP (1) EP1483067B1 (fr)
JP (1) JP4076504B2 (fr)
AT (1) ATE332196T1 (fr)
DE (2) DE10210475B4 (fr)
ES (1) ES2268339T3 (fr)
WO (1) WO2003076098A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006039093A1 (de) * 2006-08-19 2008-02-21 Kti-Engineering Gbr Strangpressvorrichtung
CN102886389A (zh) * 2012-09-20 2013-01-23 山东华盛荣镁业科技有限公司 龙门式牵引机
DE102012218223B4 (de) * 2012-10-05 2018-11-29 Unterschütz Sondermaschinenbau GmbH Abzugsvorrichtung für Strangpressanlagen zum Abziehen von Profilen aus einer Strangpressanlage
DE102016123825B4 (de) 2016-12-08 2020-04-02 Unterschütz Sondermaschinenbau GmbH Verfahren zum Abziehen und Abtrennen von Profilen aus einer Strangpressanlage sowie Abzugs- und Abtrennvorrichtung
CN118385303B (zh) * 2024-05-17 2024-11-05 山东博通铝业科技股份有限公司 自优化的铝型材输送装置
CN121222856B (zh) * 2025-12-02 2026-03-03 常州市华力德新材料科技有限公司 一种铝型材双牵引装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1821128A (en) * 1928-10-26 1931-09-01 Asphalto Concrete Corp Apparatus for stripping molds from pipes
US1961261A (en) * 1931-09-29 1934-06-05 Bozidar J Ukropina Concrete pipe stripper
DE878626C (de) * 1951-05-01 1953-06-05 Adolf Kreuser G M B H Transportvorrichtung fuer auf Strangpressen hergestellte Rohre und Profile
US2994919A (en) * 1952-04-05 1961-08-08 H D Boggs Company Ltd Apparatus for manufacturing plastic pipe
US2940119A (en) * 1954-01-15 1960-06-14 H D Boggs Company Ltd Pipe ejector-pull out
US2997737A (en) * 1956-06-28 1961-08-29 H D Boggs Company Ltd Apparatus for withdrawing tubular objects from a mold
US3829273A (en) * 1972-06-30 1974-08-13 Nippon Concrete Ind Co Ltd Device for separating concrete pole and the like from mold frame
US3946483A (en) * 1975-03-05 1976-03-30 Dayco Corporation Apparatus for and method of removing a flexible tubular conduit from around an associated elongated rigid supporting mandrel
CH640456A5 (fr) * 1980-03-25 1984-01-13 Hitachi Shipbuilding Eng Co Dispositif de moulage centrifuge pour la fabrication de conduites en materiau composite.
GB2174516B (en) * 1984-02-10 1988-12-07 Elhaus Friedrich W Method of controlling a puller assembly and an extrusion apparatus using the method
DE3404807A1 (de) * 1984-02-10 1985-08-29 Friedrich Wilhelm Dipl.-Ing. 7761 Moos Elhaus Einrichtung zum regeln einer ausziehvorrichtung
DE3723824A1 (de) * 1987-07-18 1989-01-26 Hasenclever Maschf Sms Verfahren zum abziehen eines in einer strang- oder rohrpresse erzeugten stranges, sowie steuerung einer abziehvorrichtung hierzu
JP2809844B2 (ja) * 1990-08-30 1998-10-15 大橋機械株式会社 押出材用牽引装置
DE19535231A1 (de) * 1995-09-22 1997-03-27 Hegler Ralph Peter Vorrichtung zur Herstellung von Rohren aus thermoplastischem Kunststoff mit Querprofilierung

Also Published As

Publication number Publication date
DE10210475B4 (de) 2004-05-06
US7125240B2 (en) 2006-10-24
JP2005527377A (ja) 2005-09-15
ATE332196T1 (de) 2006-07-15
WO2003076098A1 (fr) 2003-09-18
EP1483067A1 (fr) 2004-12-08
JP4076504B2 (ja) 2008-04-16
ES2268339T3 (es) 2007-03-16
DE50304137D1 (de) 2006-08-17
DE10210475A1 (de) 2003-10-02
US20050142241A1 (en) 2005-06-30

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