EP2200805A1 - Appareil à onduler pourvu d'un moyen de préhension - Google Patents

Appareil à onduler pourvu d'un moyen de préhension

Info

Publication number
EP2200805A1
EP2200805A1 EP08773371A EP08773371A EP2200805A1 EP 2200805 A1 EP2200805 A1 EP 2200805A1 EP 08773371 A EP08773371 A EP 08773371A EP 08773371 A EP08773371 A EP 08773371A EP 2200805 A1 EP2200805 A1 EP 2200805A1
Authority
EP
European Patent Office
Prior art keywords
gripper
driver
mold
guide
jaws
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.)
Withdrawn
Application number
EP08773371A
Other languages
German (de)
English (en)
Inventor
Stefan FÖSEL
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.)
Unicor GmbH
Original Assignee
Unicor 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 Unicor GmbH filed Critical Unicor GmbH
Publication of EP2200805A1 publication Critical patent/EP2200805A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/303—Extrusion nozzles or dies using dies or die parts movable in a closed circuit, e.g. mounted on movable endless support
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/18—Pleated or corrugated hoses

Definitions

  • the invention is based on a corrugator device for shaping thermoplastic corrugated pipes from a plastic melt tube emerging from an extrusion device
  • Known corrugator devices which use grippers for the return of the mold jaws provide structurally very complex gripper constructions with articulated arms.
  • the articulated arms are movable by a complex mechanism and require a relatively large space, so that the two known constructions of the machine table is not fully usable as a plane of movement of the mold jaws.
  • the invention has for its object to provide a Korrugator adopted of the aforementioned type, which is structurally simple design when using a gripper device and provides good land use for the movement of the mold jaws.
  • the grippers have guide and drive means, each having an X-guide means, ie a running in the X direction guide means and a Y-guide means, ie a running in the Y direction guide means which are separated from each other, for. B. are each designed as separate rail devices, the condition for a good land use for the movement of the mold jaws is created. Furthermore, due to this division into linear guide devices, pivoting arms for actuating the gripper can be dispensed with.
  • the X-guide device or the Y-guide device can be stationary, d h. stationary z. B. be arranged on the machine table. If the X guide device is arranged in a stationary manner, the Y guide device is coupled to the X driver of the X guide device, and the gripper is connected to the Y driver of the Y guide device.
  • An X-driver means a driver guided along the X-guide device in the X-direction and Y-driver a driver guided along the Y-guide device in the Y-direction.
  • the X-guide device is coupled to the Y-driver and the X-driver is connected to the gripper. In both cases, complicated pivoting or scissor mechanisms can be dispensed with and the guides of the gripper can be realized exclusively via linear guide devices in the X and Y directions.
  • the motor drive of the gripper can be done by servo motors, namely each gripper via 2 servomotors namely a servo motor in the X direction and a servo motor in the Y direction.
  • the servo motor in the X direction can be connected to the
  • the other Y direction servo motor may be disposed on the guide housing of the Y guide means and drive the Y dog.
  • As a driven member are each linear outputs, preferably in question, z.
  • a structurally simple engagement mechanism of the gripper can be realized if it is provided that the gripper has a gripper head, the at least a preferably operable via a motor Rastzapfen- or latching pliers device for engagement with the mold jaws.
  • the latching pin or latching pliers device can be configured with latching pins or latching pliers that are movable in opposite directions relative to one another and can be actuated via a toggle mechanism driven by the motor.
  • the mold jaws on a structurally simple detent hole device, which can interact functionally reliable with the Rastbolzen- or pliers device of the gripper.
  • Figure 1 to 7 is a plan view of a right half of the machine table a
  • Corrugator device with guided on the machine table right mold jaws arranged in a linear mold section six mold jaws with a gripper with associated guide and drive means for returning the mold jaws and with a demolding device with
  • Turntable device in seven consecutive stages of the process of demoulding and returning the mold jaws.
  • FIGS. 1 to 7 show only the right half of the machine table of FIG.
  • Corrugator In this right half, only the right mold jaws 1.1 to 1.6 are shown. They are arranged one behind the other in the linear forming section 10. They form together with the left mold jaws, not shown, in the forming section 10 a linear mold channel.
  • the left half of the machine table which is not shown in the figures, therefore has a corresponding arrangement of the left mold jaws, such as the right-hand arrangement shown in the figures.
  • the left half of the machine table also has a gripper device for returning the left mold jaws, which is designed in the same way as the gripper device of the right mold jaws shown in the figures.
  • the exemplary embodiment of the corrugator shown in the figures has a horizontal machine table 1t on which, in the case illustrated, six pairs of mold jaws are guided in succession in a row along a fixed guide strip 1f in a linear forming section 10.
  • Each mold jaw pair is formed in each case from a left and a right mold jaws 1.1 to 1.6. They each enclose a cylindrical mold cavity.
  • the guided in the linear forming section 10 in a row six pairs of mold jaws form a continuous mold channel in the mold section. It is composed of the axially adjoining cylindrical mold cavities of the mold jaw pairs.
  • the pairs of forming jaws in the linear forming section 10 are driven via a drive device arranged in the machine table 1t for linear movement along the forming section 10.
  • the mold jaws 1 on the bottom side each have a toothed rack, with which the meshing through the machine table output pinion 1a of the drive motor meshes.
  • the mold section 10 with the mold channel is arranged in the central longitudinal axis of the machine table 1t.
  • To the right of the die 10 on the right half of the machine table 1t is the return of the right mold jaws and in a corresponding manner left of the mold section on the left half of the machine table, the return of the left mold jaws takes place.
  • the two gripper devices each have a separate guide and drive device for the associated separate gripper 2.
  • the right gripper device with the associated gripper 2 is above the right half of the table of the machine table 1t and the left gripper device with the associated gripper 2 is arranged above the left half of the table of the machine table 1 t.
  • the terminal pairs of mold jaws ie, the right and left terminal mold jaws 1 to move apart.
  • the motor-driven turntable 3 of the demolding device is designed as a circular disk. It is arranged so that the disk surface is arranged parallel to the table surface. The disk surface rotates about the central axis of rotation directed perpendicular to the disk surface.
  • the drive of the hub via an electric drive motor 1a alternately clockwise and counterclockwise with a rotation angle of 90 °.
  • On the die surface facing the disc surface four cam rollers 31, 31, 32, 32 are arranged perpendicularly projecting from the disc surface. These four drive rollers are arranged symmetrically as follows:
  • the disk surface is divided into a left and a right half of the disk.
  • the dividing line is formed by a diameter line which is crossed by the central axis of rotation at its center.
  • a first cam roller 31 and a second cam roller 32 is arranged, wherein the first cam roller 31 is arranged radially further inward than the second cam roller 32, ie, the distance of the first cam roller 31 to the central axis of rotation 3d is less than the distance of the second Carrier roller 32 to the central axis of rotation.
  • the arrangement of the first and the second Mit Strukturroiie 31, 32 in each disc half is such that in each case the line connecting the arranged in a disc half first and second driving rollers 31, 32 is parallel to the diameter line.
  • the connecting lines run parallel to each other and the distance between the connecting lines to the diameter line is the same.
  • the arrangement of the first and the second cam rollers 31, 32 in the two disc halves is symmetrical to each other in such a way that the first
  • Mit supportiverolle 31 of the first disc half and the first cam roller 31 of the second disc half are arranged mirror-symmetrically to the central axis of rotation and in a corresponding manner, the second cam roller 32 of the first disc half and the second cam roller 32 of the second disc half to the central axis of rotation 3d mirror-symmetrical.
  • Mitschrolle 32 acts with its larger effective lever arm on the mold jaws. At the same torque of the motor-driven hub 3 thus acts at the beginning of Enformens a relatively large force on the mold jaws on the first driver 31 a. In the further course of demolding then act the second driver 32 via their longer lever arm with a smaller force on the mold jaws.
  • FIG. 1 is a diagrammatic representation of FIG. 1:
  • the turntable 3 is driven in a clockwise direction.
  • the drive roller 31 abuts against the longitudinal inner edge of the mold jaw 1.6.
  • the driver roller 31 presses the mold jaw 1.6 out of the central channel.
  • the short lever arm is effective via cam roller 31 and transmits a relatively large force on the mold jaws.
  • the turntable 3 is further driven in a clockwise direction.
  • the driver roller 31 and the cam roller 32 abut against the longitudinal inner edge of the mold jaw 1.6.
  • the driver roller 31 and the driver roller 32 push the already a first piece of disengaged mold jaws 1.6 further out of the center channel.
  • the longer lever arm of the drive roller 32 is effective and transmits a lower force than in the previously shown stage on the mold jaws 1.6.
  • FIG. 3 is a diagrammatic representation of FIG. 3
  • the turntable has reached its 90 ° rotational position.
  • the driver roller 32 rests alone on the longitudinal inner edge of the mold jaw 1.6.
  • the mold jaw has now reached its disengaged position and rests with the longitudinal outer edge of the extended guide bar 3v.
  • the guide strip 3v ensures a stable alignment of the mold jaw parallel to the mold channel 10 in the illustrated ready position and during the Ankoppelvorgangs the gripper 2.
  • the gripper 2 has now been moved in Figure 3 standing on the standing in the ready position mold jaws 1.6 and is already in engagement with the form baking.
  • the turntable 3 is now driven counterclockwise to turn back to its original position by 90 ° rotation angle.
  • FIG. 4 is a diagrammatic representation of FIG. 4
  • the retractable guide strip 3v is now sunk into the machine table 1t.
  • Gripper 2 leads the held mold jaws 1.6 outward over the countersunk guide strip 3v in the Y direction and at the same time in the X direction back toward the beginning of the molding section 10.
  • the turntable 3 is now turned back to its original position and is now stationary.
  • the mold jaw 1.5 has moved further towards the end of the mold section, but is not yet in operative connection with the drivers of the rotary disk. 3
  • FIG. 5 is a diagrammatic representation of FIG. 5
  • the guide strip 3v has meanwhile started up again from the machine table 3t.
  • the turntable 3 is still standing still in its starting position.
  • the mold jaw 1.5 is now moved into the area of the hub 3 and is already come into contact with the drive roller 32.
  • the cam roller 31 is not yet in contact.
  • the gripper 2 keeps the mold jaws 1.6 still engaged. He has not fully engaged the jaws 1.6 in the initial position at the beginning of the molding section.
  • FIG. 6 is a diagrammatic representation of FIG. 6
  • the mold jaw 1.5 is now vorgescht until the end of the molding section 10. He lies on the drive roller 32. However, there is still no support on the cam roller 31. The hub 3 is still standing still. The mold jaw 1.6 is still in engagement with the gripper 2 and has now reached the position immediately before engagement at the beginning of the forming section 10. He is currently engaged by the gripper 2 in the Y direction to its initial position.
  • FIG. 7 The mold jaws 1.6 is now indented in its initial position at the beginning of the mold section 10. The engagement with the gripper 2 is just released and then the gripper 2 moved away in the Y direction to the outside. The mold jaw 1.5 is now in contact with the driver roller 31 and the driver roller 32. The hub 3 is still standing still. It now follows immediately the stage, as shown in Figure 1, but advanced to a mold baking, d. H. there is the demolding of the mold baking 1.5.
  • the demolding of the left mold jaws 1 takes place in a corresponding manner on the same turntable 3 and that under the action of the two other drivers 31, 32 on the in the figures 2.1. to 2.7 left mold jaws, not shown.
  • the gripper device has a linear X-guide rail X1, which on the Machine table 1t is installed.
  • This X-guide rail X1 extends in the X direction in the vicinity and along the right outer edge of the machine table, as best seen in Figure 1. It has a guide housing with an upwardly open guide slot which extends in the X direction along the housing.
  • a circumferentially driven by a servo motor X20 belt X21 is guided in the X direction.
  • the servomotor X20 is mounted terminally on the housing of the guide rail X1.
  • an X-driver X22 connected to the revolving belt is guided, which is connected to a carriage X23 guided on the housing of the guide rail.
  • the X-driver X22 is hidden in the plan view of the figures by the carriage X23.
  • a Y-rail device Y1 is fixedly mounted on the carriage X23.
  • the Y-rail Y1 extends in the Y direction, i. H. transverse to the X-direction and that of the X-guide rail Y1 to the central axis, d. H. transverse to the axis of the forming section 10.
  • the Y-guide rail Y1 is constructed analogously to the X-guide rail X1. It is only axially shorter. It also has a Y-guide housing with an upwardly open guide slot which extends in the Y-direction. In the Y- guide housing in a Y-direction circumferentially motor-driven belt is guided.
  • the drive motor is also a servomotor Y20, which is located on the Y-
  • Guide housing is mounted.
  • the connected to the revolving belt Y21 Y-driver Y22 passes through the guide slot in the Y-housing in a corresponding manner and is connected to a guided on the Y-housing slide Y23.
  • the Y-driver Y22 is hidden in the plan view of the figures by the carriage Y23. On the carriage Y23 of the gripper 2 via a
  • Angled support Y24 rigidly mounted.
  • the angle bracket Y24 extends at an angle of about 45 ° to the Y direction, so that the gripper 2 is turned with its engagement side perpendicular to the longitudinal axis of the forming section 10.
  • the gripper 2 has on its engagement side on a locking pin 2r, which is connected to a arranged on the gripper head actuator motor 22 via a toggle mechanism. About the actuating motor 22 of the toggle mechanism is driven to actuate the locking pin 2r, For engaging the locking pin 2r on the driven toggle lever mechanism apart. To release the locking pin 2r are driven in the opposite direction on the driven toggle mechanism together.
  • the line of movement of the locking pin 2r is a straight axis in which the axes of the locking pin 2r are aligned.
  • the shaping jaws each have a latching hole device 1 r on the outside facing away from the forming section 10. It comprises two axially aligned locking holes 1 r in which the locking pin 2r of the gripper 2 in the coupling position and can be disengaged.
  • the corrugator shown works as follows:
  • the plastic melt tube emerging from a nozzle device, not shown, of an extruder passes through the molding channel, which is formed in the molding section 10 by the traveling mold pairs arranged one behind the other.
  • the mold jaws 1.1 to 1.6 are driven on the bottom side via the output gear 1a of the drive motor in the X direction.
  • the mold jaws 1.1 to 1.6 each returned from the end of the forming section 10 to the beginning.
  • the demoulding device with the motor-driven rotary disk 3 is arranged at the end of the molding section 10.
  • the plastic melt tube is cooled in the mold channel of the corrugator and formed to form a corrugated tube.
  • the finished shaped corrugated pipe emerges as an endless tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Advancing Webs (AREA)
  • Tyre Moulding (AREA)

Abstract

L'invention concerne un appareil à onduler servant à façonner des tuyaux ondulés thermoplastiques à partir d'un tube de plastique fondu sortant d'un dispositif d'extrusion. Cet appareil comprend des mâchoires de façonnage (1.1 à 1.6) qui se déplacent de façon rotative dans une section de façonnage (10) linéaire et sont disposées par paires les unes derrière les autres de façon à former un canal de façonnage dans la section de façonnage (10), les paires de mâchoires de façonnage étant composées chacune d'une mâchoire de façonnage gauche et d'une mâchoire de façonnage droite (1.1 à 1.6) et ces paires entourant une cavité de façonnage cylindrique de manière à former le canal de façonnage. L'appareil comprend également un dispositif de préhension destiné à ramener les mâchoires de façonnage (1.1 à 1.6.) de la fin de la section de façonnage (10) au début de celle-ci. Ce dispositif de préhension présente un élément de préhension (2) pour les mâchoires de façonnage gauches et un élément de préhension (2) pour les mâchoires de façonnage droites, ces éléments de préhension étant pourvus d'un dispositif de guidage et d'entraînement. Ce dernier présente un rail de guidage linéaire (X1) s'étendant dans la direction X et un rail de guidage linéaire (Y1) s'étendant dans la direction Y, ces rails se présentant sous la forme de systèmes séparés. L'élément de préhension (2) peut être déplacé sur le rail de type Y (Y1), ce rail de type Y (Y1) pouvant être déplacé sur le rail de type X (X1).
EP08773371A 2007-10-12 2008-06-06 Appareil à onduler pourvu d'un moyen de préhension Withdrawn EP2200805A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007049656A DE102007049656A1 (de) 2007-10-12 2007-10-12 Korrugatoreinrichtung mit Greifer
PCT/EP2008/004542 WO2009049692A1 (fr) 2007-10-12 2008-06-06 Appareil à onduler pourvu d'un moyen de préhension

Publications (1)

Publication Number Publication Date
EP2200805A1 true EP2200805A1 (fr) 2010-06-30

Family

ID=40084405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08773371A Withdrawn EP2200805A1 (fr) 2007-10-12 2008-06-06 Appareil à onduler pourvu d'un moyen de préhension

Country Status (7)

Country Link
US (1) US8430659B2 (fr)
EP (1) EP2200805A1 (fr)
CN (1) CN101873920B (fr)
CA (1) CA2704794C (fr)
DE (1) DE102007049656A1 (fr)
RU (1) RU2466021C2 (fr)
WO (1) WO2009049692A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2865601C (fr) * 2014-09-30 2022-04-26 Manfred A. A. Lupke Retour de bloc de moulage
JP6159005B1 (ja) 2016-11-21 2017-07-05 株式会社中田製作所 溶接管製造装置および溶接管製造方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5522718A (en) * 1993-06-03 1996-06-04 Drossbach Gmbh & Co. Kg Apparatus for the production of corrugated tubing from thermoplastic synthetic resin

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Publication number Priority date Publication date Assignee Title
US522718A (en) * 1894-07-10 Harry ward leonard
DE2832350A1 (de) 1978-07-22 1980-01-31 Wilhelm Hegler Vorrichtung zur herstellung von rohren aus thermoplastischem kunststoff mit querprofilierung
ATE58671T1 (de) * 1986-11-13 1990-12-15 Unicor Rohrsysteme Gmbh Vorrichtung zum fortlaufenden erzeugen von rohren mit querprofilierter wandung.
AU686094B2 (en) * 1992-09-25 1998-02-05 Big 'o' Inc. Method and apparatus for production of tubing
DE4414977A1 (de) * 1994-04-29 1995-11-02 Wilhelm Hegler Vorrichtung zur Herstellung von Rohren aus thermoplastischem Kunststoff mit Querprofilierung
US7001171B2 (en) * 2001-02-19 2006-02-21 Starita Joseph M Apparatus and methods for managing molds and forming transverse corrugations and other shapes in extruded tubular polymer melt parisons
DE10110775B4 (de) * 2001-03-07 2013-03-14 Ralph-Peter Hegler Verfahren und Vorrichtung zur Herstellung von Rohren aus thermoplastischem Kunststoff mit Querprofilierung
DE20104922U1 (de) * 2001-03-21 2002-07-25 Drossbach GmbH & Co KG, 86641 Rain Wellrohranlage
DE10257365B3 (de) 2002-12-09 2004-06-03 Unicor Gmbh Rahn Plastmaschinen Vorrichtung zur Herstellung von Querrippenrohren
CN2635335Y (zh) * 2003-08-04 2004-08-25 潍坊中云机器有限公司 往复式塑料波纹管成型装置
DE102004040019B4 (de) 2004-08-18 2011-06-22 Drossbach GmbH & Co. KG, 86641 Vorrichtung zur Herstellung von Wellrohren

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5522718A (en) * 1993-06-03 1996-06-04 Drossbach Gmbh & Co. Kg Apparatus for the production of corrugated tubing from thermoplastic synthetic resin

Also Published As

Publication number Publication date
US8430659B2 (en) 2013-04-30
WO2009049692A1 (fr) 2009-04-23
RU2466021C2 (ru) 2012-11-10
RU2010119039A (ru) 2011-11-20
CA2704794C (fr) 2013-06-04
CA2704794A1 (fr) 2009-04-23
DE102007049656A1 (de) 2009-04-23
CN101873920B (zh) 2013-03-27
CN101873920A (zh) 2010-10-27
US20100291254A1 (en) 2010-11-18

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