EP0786315B1 - Dispositif pour la découpe de tubes - Google Patents

Dispositif pour la découpe de tubes Download PDF

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Publication number
EP0786315B1
EP0786315B1 EP97100764A EP97100764A EP0786315B1 EP 0786315 B1 EP0786315 B1 EP 0786315B1 EP 97100764 A EP97100764 A EP 97100764A EP 97100764 A EP97100764 A EP 97100764A EP 0786315 B1 EP0786315 B1 EP 0786315B1
Authority
EP
European Patent Office
Prior art keywords
anvil
cutting
counterstay
cutting tool
guide
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
EP97100764A
Other languages
German (de)
English (en)
Other versions
EP0786315A1 (fr
Inventor
Günther Nicolai
Ralf Arnold
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.)
Adolf Brodbeck Maschinenbau GmbH and Co KG
Original Assignee
Adolf Brodbeck Maschinenbau GmbH and Co KG
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 Adolf Brodbeck Maschinenbau GmbH and Co KG filed Critical Adolf Brodbeck Maschinenbau GmbH and Co KG
Publication of EP0786315A1 publication Critical patent/EP0786315A1/fr
Application granted granted Critical
Publication of EP0786315B1 publication Critical patent/EP0786315B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • B26D3/164—Cutting rods or tubes transversely characterised by means for supporting the tube from the inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds
    • B26D2007/202—Rollers or cylinders being pivoted during operation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/16—Severing or cut-off
    • Y10T82/16426—Infeed means
    • Y10T82/16967—Infeed means with means to support and/or rotate work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/22—Portable lathe for pipe turning
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/25—Lathe
    • Y10T82/2531—Carriage feed
    • Y10T82/2541—Slide rest
    • Y10T82/2543—Multiple tool support

Definitions

  • the invention relates to a device for cutting pipes according to the Preamble of claim 1 (see e.g. GB 2 264 665 A).
  • GB 2 264 665 A describes a device for cutting cardboard tubes with at least one cutting unit.
  • This cutter works against you to the interface of the cutting tool arranged counterholder, which one Anvil has that within the outer circumference of the counter holder is arranged.
  • This counter holder is arranged inside the tube.
  • the pipe is rotated by a drive device.
  • the cutting knife runs towards the pipe and cuts it.
  • the cutting movement of the cutting knife limited by an anvil on the counter holder, which is resilient is stored.
  • This device has the disadvantage that it is unclean Cut edge is formed on the inside of the tube.
  • the invention is therefore based on the object of a device for cutting to create pipes with a clean cutting surface at a high Life of the cutting tool is enabled.
  • the at least one anvil which is at least partially is arranged outside the outer surface of the counter-holder, can be a cleaner Cutting can be achieved especially with cardboard tubes, because during the cutting process the pipe is supported from the inside at the interface. Furthermore, the contact of the at least one anvil on the inside the advantage of the tube that this inside during the cutting process is polished, which in particular prevents fringing in cardboard tubes is. Furthermore, the anvil can end the cutting process be limited, the cutting knife being protected from damage since this against a resiliently arranged anvil at the end of Cutting process is running.
  • the anvil in the guide by an actuator that can be arranged in the counterholder Depending on the depth of cut of the cutting knife is flexible. Thereby can give an active movement of the anvil during the cutting process be so that depending on the depth of cut of the anvil actively inwards respectively is guided to the longitudinal central axis of the tube. This can cause a Controlled cutting movement take place, depending on the setting accuracy the cutting knife just comes to rest on the anvil surface when the preset depth of cut is reached. This can increase the lifespan of the cutting knife and anvil be significantly increased.
  • Fig. 1 are the essential parts of a device 10 for cutting of tubes 11, such as cardboard tubes or plastic tubes, shown.
  • Such machines can make cardboard tubes with a diameter in the decimeter range and lower meter range, preferably in a range between 25 to 340 mm, and with a wall thickness of, for example, up to 20 mm to a predetermined one Length can be cut off.
  • the tubes 11 are on a feed device Counterholder 13 supplied, which is then run over until the one to be cut Length of the tube 11 is reached at the interface.
  • the support rollers 16, 17 support this Tube 11 during the cutting process, in which the tube 11 via drive means in Rotation is offset.
  • a right and left cutting tool is used during the cutting process 20, 21, which is designed as a disk-shaped cutting knife, to the longitudinal central axis of the tube 11 moves so that the cutting edges 22 of the cutting tools 20, 21 enter with the rotating tube 11 at an interface 14 and that Separate material.
  • the cutting knives 20, 21 are advantageously at 180 ° to each other staggered so that during the cutting process on the tube 11 a uniform distribution of the cutting forces is given.
  • the cutting knives 20, 21 are fed along the axis 23 until it is on an end face 24 of an anvil 26 concerns. The cut is then completed or the delivery of the Cutting knife 20, 21 will then stopped when the free end of the pipe 11 from the rotated pipe section falls away.
  • the anvil 26 is in a guide 28 of the counter-holder 13 by a spring element 27 Completely guided radially to the longitudinal central axis of the tube 11.
  • the anvil 26 can for example by a radial stop arranged in the guide 28 Outward movement can be limited.
  • the Counterholder 13 has a recess in the lateral surface which is of such a size is formed that only a part of the end face 24 in the outer surface of the counter-holder 13 concerns.
  • a cover plate 31 can be screwed laterally onto the counter-holder 13. This cover plate 31st is designed like a segment of a circle.
  • the spring element 27, for example as a compression spring or plate spring assembly can be formed has a compressive force which is less than the feed force of the Cutting tool 20, 21 is so that when the cutting edge 22 hits the End face 24 of the anvil 26 of the latter is flexible in the guide 28. Thereby can be a considerable advantage when adjusting the cutting depth of the cutting tool 20, 21 be given. Furthermore, this flexible design allows sensitive Cutting edge 22 must be protected from damage, so that the life can be increased.
  • a rubber-elastic as spring element 27 or thermoplastic material can be used.
  • the travel of the anvil 26 can up to 5 mm, with a resilient range of, for example, 1 mm in general enough.
  • the cutting tools 20, 21 are at rest Position so that when cutting a tube 11 several times always the same Section of the cutting edge 22 comes into engagement.
  • the cutting knives 20, 21 according to a predetermined number of cutting operations rotated by a certain angle, so that a new and unused cutting edge 22 can be used.
  • Such indexing can be done manually or automatically. The indexing can be done after each cut, at intervals or as required.
  • the cutting tool 20, 21 is advantageously made of HSS, hard metal or a other material suitable as a cutting tool.
  • the cutting edge 22 can have a coating to increase the service life, for example a polycrystalline diamond coating or a cubic bomitrite coating. Other alternative coatings can also be provided.
  • a kinematic reversal can be provided for cutting the tube 11 to length be, the cutting knives 20, 21 rotating around the tube 11 and on their bearing axis are dormant. At the same time the anvil 26 is driven in rotation. The anvil 26 and the cutting knife 20, 21 are in a moving system seen, arranged resting to each other.
  • the tube 11 is arranged upright and the cutting knives 20, 21 are driven to rotate around a piece of pipe to cut off.
  • FIG. 2 shows an alternative embodiment of two in a counter holder 13 guided anvils 26 shown.
  • These anvils 26 are actuated by an actuator 32, that as a backdrop or curve control, the cutting knives are active in relation to the depth of cut 20, 21 moves so that the anvils 26 towards the end of the cutting process Carry out defined radial movement inwards so that the cutting knife 20, 21 barely cuts a last layer of cardboard tubes, but not with great force the end face 24 of the anvil 26 comes to rest.
  • the active movement of the Anvils 26 are given by a curve control, the anvils 26 in the respective Guide 28 have spring elements, which these are forced radially inwards move.
  • a rotary movement of the actuator 32 can cause a forced steering to the outside is given.
  • the control of the backdrop 32 can via a shaft, which in conjunction with a delivery mechanism of the Cutting knife 20, 21 stand during the cutting process.
  • FIG. 3 An alternative embodiment to FIG. 2 is shown in FIG. 3.
  • the anvil 26 is formed conical and projects with its inclined surfaces 33 over the outer surface 34 of the counter-holder 13. This can be achieved at the interface
  • a chamfer is provided on the inside of the tubes 11 and 11 '. This can also be achieved that, for example with cardboard tubes, the last layer better and can be cut cleaner. Overall, this configuration can clean cutting edge with a simultaneous chamfer and a defined inner edge of the Tube 11 can be produced. This allows easier processing of the pipes 11 be possible.
  • the anvils 26 are moved over the positive guide 32 actively moved outwards, so that they at least partially into the inner surface 36 press the tube 11.
  • the cutting knives 20, 21 are from the outside moved radially inward towards the anvils 26, these on the axis 23 for Interface 14 are performed. These can then, for example - as shown in Fig. 3 - Can be positioned on the common axis 23 for the anvil 26. Alternatively can be provided that shortly before the anvil 26 and Cutting knife 20 an active inward movement of the anvils 26 at least slightly done.
  • the anvils 26 through the backdrop 32 in such a way are moved so that their outer body edges within the lateral surface 34th of the counter holder 13 are positionable.
  • Anvils 26 can be moved outwards via the backdrop 32.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Earth Drilling (AREA)
  • Sawing (AREA)

Claims (11)

  1. Dispositif pour la découpe de tubes avec au moins un outil de coupe (20, 21), qui s'applique contre une enclume (26) d'un contre-appui (13) à disposer chaque fois vers le point de coupe (14) de l'outil de coupe (20, 21) et disposée à l'intérieur du tube (11), dans lequel l'outil de coupe (20, 21) peut avancer vers le contre-appui (13) pendant l'opération de coupe et peut être limité dans son mouvement de coupe par le contre-appui (13) à la fin de l'opération de coupe et l'enclume peut être disposée souplement dans le contre-appui (13) dans un guide (28) disposé de façon radiale par rapport à l'axe central longitudinal du contre-appui (13) dans la direction d'approche de l'outil de coupe (20, 21), caractérisé en ce que l'enclume (26) est disposée au moins en partie avec sa face d'extrémité (24) à l'extérieur de la surface latérale (34) du contre-appui (13).
  2. Dispositif suivant la revendication 1, caractérisé en ce que l'enclume (26) est de forme conique.
  3. Dispositif suivant la revendication 1, caractérisé en ce que l'enclume (26) est guidée souplement dans le guide (28) en fonction de la profondeur de coupe de l'outil de coupe (20, 21), au moyen d'un organe de commande (32) étant disposé dans le contre-appui (13).
  4. Dispositif suivant la revendication 3, caractérisé en ce que l'organe de commande (32) est une came tournant dans le contre-appui (13).
  5. Dispositif suivant la revendication 3 ou 4, caractérisé en ce que des éléments de ressorts (27) sont disposés dans le guide (28) des enclumes (26), s'opposant à un mouvement de déviation de l'organe de commande (32).
  6. Dispositif suivant la revendication 1, caractérisé en ce que l'enclume (26) est réglable dans une position radiale par rapport à la surface latérale (34) du contre-appui (13).
  7. Dispositif suivant la revendication 1, caractérisé en ce que le guide (28) de l'enclume (26) présente une ouverture pratiquée dans une surface latérale (34) du contre-appui (13), qui est plus petite qu'une face d'extrémité (24) de l'enclume (26) et qui supporte de façon sûre l'enclume (26) radialement vers l'extérieur.
  8. Dispositif suivant la revendication 1, caractérisé en ce que l'enclume (26) coopère avec une contre-dépouille d'un guide (28) et est assurée contre une séparation radiale.
  9. Dispositif suivant l'une quelconque des revendications précédentes, caractérisé en ce que l'outil de coupe (20, 21) est un couteau en forme de disque.
  10. Dispositif suivant l'une quelconque des revendications précédentes, caractérisé en ce que le couteau (20, 21) est statique pendant l'opération de coupe.
  11. Dispositif suivant l'une quelconque des revendications précédentes, caractérisé en ce que le couteau (20, 21) est avancé par indexage de préférence par quelques degrés d'angle.
EP97100764A 1996-01-26 1997-01-18 Dispositif pour la découpe de tubes Expired - Lifetime EP0786315B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19602730A DE19602730A1 (de) 1996-01-26 1996-01-26 Vorrichtung zum Schneiden von Rohren
DE19602730 1996-01-26

Publications (2)

Publication Number Publication Date
EP0786315A1 EP0786315A1 (fr) 1997-07-30
EP0786315B1 true EP0786315B1 (fr) 2001-11-14

Family

ID=7783721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97100764A Expired - Lifetime EP0786315B1 (fr) 1996-01-26 1997-01-18 Dispositif pour la découpe de tubes

Country Status (5)

Country Link
US (1) US6101910A (fr)
EP (1) EP0786315B1 (fr)
AT (1) ATE208690T1 (fr)
DE (2) DE19602730A1 (fr)
DK (1) DK0786315T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015104845A1 (de) 2015-03-30 2016-10-06 Adolf Brodbeck Maschinenbau Gmbh & Co. Kg Verfahren und Vorrichtung zum zumindest teilweisen Schneiden von Rohren

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DE19734563C1 (de) * 1997-08-04 1998-12-03 Mannesmann Ag Verfahren zur Herstellung von Wälzlagerringen aus Stahl
GB9824240D0 (en) * 1998-11-06 1998-12-30 Graham Labelling Systems Limit Sleeve cutting apparatus
US6418822B1 (en) * 2000-06-27 2002-07-16 Sonoco Development, Inc. Cut-off apparatus for non-circular tubes
DE20104972U1 (de) * 2001-03-22 2002-04-25 KRONES AG, 93073 Neutraubling Vorrichtung zum Auffalten eines Folienschlauches und Abschneiden von Folienhülsen
US6832536B2 (en) 2002-05-21 2004-12-21 Exotic Metal Forming Company Machine and method for servering a thin-walled tube
CA2436328A1 (fr) * 2003-07-31 2005-01-31 Daniel Viola Systeme de biseautage de coupe-tuyau en plastique portatif
FR2914574B1 (fr) * 2007-04-04 2009-06-05 Eberle Soc Par Actions Simplif Dispositif de coupe ou de recoupe de tubes muni d'un couteau interieur
ITPI20110084A1 (it) * 2011-07-23 2013-01-24 Ga Vo Meccanica S N C Apparecchiatura per tagliare trasversalmente corpi tubolari
US9016184B2 (en) * 2012-09-27 2015-04-28 National Machinery Llc Precision forged cartridge case
US9694424B2 (en) * 2014-06-20 2017-07-04 Navarro IP, LLC Apparatus for cutting material and method
KR101615581B1 (ko) * 2015-01-13 2016-05-13 (주) 에스엘테크 미세제어 보호필름 커팅장치
US11577348B2 (en) * 2018-07-16 2023-02-14 William A. Schahuber Tank fabricating equipment

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015104845A1 (de) 2015-03-30 2016-10-06 Adolf Brodbeck Maschinenbau Gmbh & Co. Kg Verfahren und Vorrichtung zum zumindest teilweisen Schneiden von Rohren
DE102015104845B4 (de) * 2015-03-30 2021-06-24 Adolf Brodbeck Maschinenbau Gmbh & Co. Kg Verfahren und Vorrichtung zum zumindest teilweisen Schneiden von Rohren

Also Published As

Publication number Publication date
EP0786315A1 (fr) 1997-07-30
DE19602730A1 (de) 1997-07-31
DE59705315D1 (de) 2001-12-20
DK0786315T3 (da) 2002-03-11
US6101910A (en) 2000-08-15
ATE208690T1 (de) 2001-11-15

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