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EP0225235B1 - Dispositif de tronçonnage de tubes - Google Patents

Dispositif de tronçonnage de tubes Download PDF

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Publication number
EP0225235B1
EP0225235B1 EP86402427A EP86402427A EP0225235B1 EP 0225235 B1 EP0225235 B1 EP 0225235B1 EP 86402427 A EP86402427 A EP 86402427A EP 86402427 A EP86402427 A EP 86402427A EP 0225235 B1 EP0225235 B1 EP 0225235B1
Authority
EP
European Patent Office
Prior art keywords
core
counter knife
tube
knife
cutting
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
EP86402427A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0225235A1 (fr
Inventor
Jean-Paul Languillat
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.)
Lhomme SA
Original Assignee
Lhomme SA
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 Lhomme SA filed Critical Lhomme SA
Publication of EP0225235A1 publication Critical patent/EP0225235A1/fr
Application granted granted Critical
Publication of EP0225235B1 publication Critical patent/EP0225235B1/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
    • 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
    • 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
    • Y10T82/16016—Processes
    • 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
    • Y10T82/16131—Flying cutter type
    • 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
    • Y10T82/16803—Rotatable tool[s] driven by contact with 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
    • Y10T82/16—Severing or cut-off
    • Y10T82/16426—Infeed means
    • Y10T82/16803—Rotatable tool[s] driven by contact with work
    • Y10T82/16819—Axially movable tool support
    • 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
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0596—Cutting wall of hollow 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
    • Y10T83/00—Cutting
    • Y10T83/384—By tool inside hollow work

Definitions

  • the invention relates to a device for cutting tubes comprising at least one knife which cooperates at the end of cutting with a counterpart known as a counter knife disposed inside the tube to be cut (see for example EP-A 0 125 175).
  • Chainsaws intended to cut individual tubes into several sections are in fact provided with knives and a counterpart fixed longitudinally, the latter being arranged on a fixed mandrel on which the tube is threaded.
  • the supply of tubes is hitherto necessarily done on the same side as the discharge of the sections since one side is prohibited by the connection of the counterpart, which prevents a continuous supply.
  • the cutting device according to the invention is remarkable in that the counter knife is mechanically connected to a core of high magnetic susceptibility while a magnetic induction means comprising a coil is arranged to create a magnetic field through the tube to be cut, with induction lines which are substantially longitudinal in the core, so as to be able to act magnetically on the longitudinal position of said core and thereby on that of the counter knife as a function of the longitudinal position of the knife.
  • the winding of the magnetic induction means is wound in a carcass around the tube to be cut.
  • the magnetic induction means has a fixed longitudinal position and creates induction lines of constant shapes and longitudinal positions, while that the core and the counter knife are connected together by a rigid non-magnetic element which is fixed integrally longitudinally to the core and the counter knife.
  • the fixing of the rigid element to the counter knife and / or to the core is free. rotation, so as to allow freedom of rotation of the counter knife relative to the core.
  • the knife or knives are positioned on one side of the magnetic induction means and a pusher is provided, preferably on the side of said knives, to supply the device individually with cut-off tubes and to advance each tube lengthwise. desired as a function of the sections to be obtained, while the cut sections are evacuated on the side opposite the pusher relative to the induction means.
  • the invention also relates to a device for cutting a tube manufactured continuously, the knife or knives being moved longitudinally at the time of cutting, synchronously with the advancement of the tube during manufacture, such as, for example , in the known device which is described in patent EP-A 0 125 175 in the name of the same applicant.
  • the induction means is for example mounted on a carriage movable longitudinally and whose movement is controlled by the cutting cycle.
  • the size, and consequently the weight of the induction means also become important so that the setting in motion of said induction means is difficult.
  • the invention proposes in this case a remarkable embodiment in that the induction means has a fixed longitudinal position and in that a tubular element made of material with high magnetic susceptibility is mounted movable longitudinally around the tube. to be cut, said tubular element having a part with low magnetic susceptibility, preferably of length at most equal to that of the core, while the movement of the tubular element is slaved to the cutting cycle so that the displacement of said tubular element in the magnetic field of the induction means causes the displacement of the core which channels the lines induction through the part with high magnetic susceptibility of the tubular element.
  • the core and the counter knife can be connected together by a rigid non-magnetic element which is fixed integrally longitudinally to the core and the counter knife, while the carriage, or respectively the tubular element, is slaved to the movement of the tube, so that the core and therefore the counter knife follow synchronously the movement of the tube and the knife during at least the action of the latter, a servo being provided to return the carriage, or respectively the tubular element, and therefore the counter knife, in the initial position after each cutting for a new cutting cycle.
  • the core and the counter knife are connected in such a way that the counter knife can deviate freely from a certain length of the core while the carriage, or respectively the tubular element, is controlled.
  • the core advances rapidly by a certain length before the action of the knives, approaching the counter knife, the outside diameter of which is preferably substantially equal to the inside diameter of the tube so that said counter -cuteau can be driven freely by the tube itself by moving away from the core during cutting, a servo being provided to bring the carriage, or respectively the tubular element and therefore the counter knife, in the initial position after each cutting for a new cutting cycle.
  • the core and the counter knife are for example interconnected by a cable so that the advancement of the core creates a slack in said cable allowing freedom of advancement of the counter knife and that backward movement of the core creates a tension in the cable enabling the said counter-knife to be brought back.
  • the tube 4 is shown here cut longitudinally (as well as the carcass 2) to reveal the interior.
  • the tube 4 can be driven in rotation by means of drive rollers 5a, 5b (FIGS. 1 and 2) themselves actuated by a motor 6 and through a set of gears 7 (FIG. 1).
  • the tube 4 is further maintained and centered by rollers 8a to 8d arranged on the carcass 2 (8a and 8d are visible in FIGS. 1 and 2, 8a to 8c are visible in FIG. 3 while two other corresponding non-visible rollers the rollers 8b and 8c are provided on the other side of the carcass 2).
  • rollers as shown in the drawings, is provided to allow both a longitudinal displacement and a rotation of the tube 4.
  • a core 9 of good magnetic susceptibility such as soft iron mechanically connected to a counter knife 10 by means of a connecting piece 11 made of non-magnetic material (for example aluminum).
  • the mechanical connections between the core 9 and the part 11 and between the latter and the counter knife 10 are such that they ensure, on the one hand, a free rotation of these three elements with respect to each other (by means of parts rolling) but, on the other hand, longitudinal solidarity so that the counter knife 10 can be actuated in rotation with the tube 4 without driving the core 9.
  • a pusher 13 mounted free to rotate, at the end of an actuating rod 14, guided in the chassis 1.
  • each tube is supplied by the pusher 13, while the rod 14 is actuated in the direction of the arrow F 1 ( Figure 1) so as to properly position said tube by versus knife 12.
  • the iron core 9 is held in position by to the magnetic field created by the winding 3 traversed by an electric current so that the counter knife 10 remains in good position relative to the knife 12.
  • the knife (s) and the counter knife could be arranged on the other side of the carcass 2.
  • FIGS. 4 and 5 show two embodiments more particularly intended for cutting-off devices provided at the end of spiraling machines for the continuous production of cardboard tubes and more generally, for machines in which the tube in production or in one piece is moved. longitudinally at the time of cutting.
  • Figure 4 has, as in Figure 1, a carcass 2, provided with a coil 3, while a soft iron core 9 'is mechanically connected to a counter knife 10 'by means here of a non-magnetic rod 11' possibly free to rotate on the core 9 'and / or on the counter knife 10'.
  • This device also includes knives 12 ′ (here two are shown), possibly a schematic entry at 15, for rotating the drive rollers, such as 5 ′ a with, in addition here, pressure rollers 16.
  • the knives 12 ′ are driven synchronously with the advancement of the tube 4 in the direction of the arrow F 2 .
  • the carcass 2 is fixed here on a mobile carriage 17 which is guided on slides 18 of a fixed frame.
  • the carriage 17 is driven by a crank rod system 19, synchronously with the advancement of the tube 4 (by a servo-control not shown).
  • Means are obviously provided for bringing the carriage 17 and the knives 12 'back to the initial position for a new cutting cycle, said carriage having a reciprocating movement according to the double arrow Fs in FIG. 4.
  • the tube is actuated in rotation during its manufacture by spiraling so that the means 15 and 5'a are not compulsory.
  • Figure 5 shows another particularly interesting and original embodiment since it allows. to have a fixed means of induction (carcass-winding) while allowing movement of the core.
  • the core 9 " has a longitudinal dimension smaller than that of the previous embodiments, while the rod 11" passes through the core 9 "and has a stop 20 at its free end.
  • a tube 21 made of material of good magnetic susceptibility (soft iron, steel, etc.) is mounted coaxially around the tube 4 to be cut.
  • the tube 21 has in its central part, a ring 22 made of a material of very low magnetic susceptibility (in copper for example) while the said tube is mounted on a carriage 23 mounted longitudinally movable and actuated for example by a jack 24 so as to follow the movement of the tube 4 according to arrow F 4 .
  • the carriage 23 will also have a back and forth movement according to the double arrow F s as described below.
  • the rod 11 ′ in FIG. 4 can be replaced by a cable or a sliding rod of the type eg of the rod 11 "in FIG. 5, the carriage 17 having a movement of the type described in connection with the carriage 23 in FIG. 5.
  • the invention relates mainly, but not exclusively, to cardboard tubes.
  • the tubes may have a circular or polygonal section, in the latter case, the means for rotating provided in FIG. 1 can for example be replaced by a pusher mounted to rotate.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Details Of Cutting Devices (AREA)
EP86402427A 1985-10-30 1986-10-29 Dispositif de tronçonnage de tubes Expired - Lifetime EP0225235B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8516135 1985-10-30
FR8516135A FR2589384B1 (fr) 1985-10-30 1985-10-30 Dispositif de tronconnage de tubes

Publications (2)

Publication Number Publication Date
EP0225235A1 EP0225235A1 (fr) 1987-06-10
EP0225235B1 true EP0225235B1 (fr) 1990-06-06

Family

ID=9324362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86402427A Expired - Lifetime EP0225235B1 (fr) 1985-10-30 1986-10-29 Dispositif de tronçonnage de tubes

Country Status (7)

Country Link
US (2) US4889023A (sv)
EP (1) EP0225235B1 (sv)
CA (1) CA1304670C (sv)
DE (2) DE3671717D1 (sv)
ES (1) ES2016269B3 (sv)
FI (1) FI86265C (sv)
FR (1) FR2589384B1 (sv)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2630367B2 (fr) * 1985-10-30 1990-08-17 Lhomme Sa Dispositif de tronconnage de tubes
FR2589384B1 (fr) * 1985-10-30 1988-01-22 Lhomme Sa Dispositif de tronconnage de tubes
FI87898C (sv) * 1988-04-25 1993-03-10 Lhomme Sa Anordning för kapning av rör
FI88370C (sv) * 1988-04-25 1993-05-10 Lhomme Sa Rörkapningsanordning
US5406870A (en) * 1993-09-13 1995-04-18 The Vulcan Tool Company Method and apparatus for cutting tubing
KR100407540B1 (ko) * 2001-04-30 2003-12-01 주식회사 뉴보텍 연속사출 성형과정의 이중벽 주름관체 절단시스템의사출길이감지장치
KR100407541B1 (ko) * 2001-04-30 2003-12-01 주식회사 뉴보텍 연속사출 성형과정의 이중벽 주름관체 절단시스템의절단장치
KR100434969B1 (ko) * 2001-04-30 2004-06-07 주식회사 뉴보텍 연속압출 성형과정의 이중벽 주름관체 절단시스템
US6752055B2 (en) * 2001-05-08 2004-06-22 John J. Borzym Turret type product receiver/unloader for slugless shear
DE10240520A1 (de) * 2002-09-03 2004-03-11 Khs Maschinen- Und Anlagenbau Ag Vorrichtung für Sleeve-Etikettiermaschinen
US9365344B2 (en) * 2004-06-17 2016-06-14 Caprosol Ag Method for the production of a can body, and can body
FI119419B2 (sv) * 2005-01-26 2011-10-13 Raumaster Paper Oy Sätt och anordning för kapning av en hylsa
ITFI20050258A1 (it) * 2005-12-23 2007-06-24 Perini Fabio Spa Macchina per la produzione di tubi tramite avvolgimento di strisce di materiale nastriforme
ITFI20070230A1 (it) * 2007-10-22 2009-04-23 Perini Fabio Spa "tubiera con un supporto magnetico per il mandrino avvolgitore"
CN101775969B (zh) * 2010-01-11 2012-11-28 毛宏伟 塔架式无导轮组合传动抽油机
DE102017127326B3 (de) * 2017-11-20 2019-03-21 Rattunde & Co. Gmbh Rohrschneidemaschine mit einem gesteuerten, fliegenden Schneiddorn
IT202200005441A1 (it) * 2022-03-21 2022-06-21 Roberto Rossi Sistema di taglio automatico per anime e magazzino con scelta formato completamente automatico

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US2600254A (en) * 1947-03-20 1952-06-10 Lysobey John Wall treatment of tubing
US2607074A (en) * 1947-03-21 1952-08-19 Extruded Plastics Inc Tube shearing apparatus
US2699099A (en) * 1952-05-29 1955-01-11 Ernest B Robinson Apparatus for producing helically wound cylinders
DE1778323A1 (de) * 1968-04-19 1971-09-09 Dynamit Nobel Ag Vorrichtung zum Halten der Stuetzluft bei der Fertigung von verstrecktem Kunststoffrohr
DE2015921C3 (de) * 1970-04-03 1979-04-12 Dynamit Nobel Ag, 5210 Troisdorf Vorrichtung zum Durchschneiden von kontinuierlich extrudierten Kunststoffrohren
US3670408A (en) * 1970-07-02 1972-06-20 Gen Electric Method of maintaining a laminated article under compression during a part of its manufacture
GB1411321A (en) * 1973-06-13 1975-10-22 Ti Group Services Ltd Shearing tubes
NL7308911A (sv) * 1973-06-27 1974-12-31
US3933090A (en) * 1973-08-24 1976-01-20 Deering Milliken Research Corporation Tube cutting apparatus
US3911768A (en) * 1974-08-16 1975-10-14 American Tara Corp Core cutting apparatus
US4003278A (en) * 1975-03-14 1977-01-18 Jackes-Evans Manufacturing Company Tube cutting apparatus
US4299147A (en) * 1979-09-06 1981-11-10 Donald V. Hanlon Method and apparatus for cutting can bodies
FR2545752B1 (fr) * 1983-05-10 1986-12-19 Lhomme Sa Dispositif de tronconnage pour tubes de carton fabriques en continu
FR2547532B1 (fr) * 1983-06-15 1985-10-25 Lhomme Sa Procede de fabrication d'un corps creux en carton, de diametre moyen decroissant, corps creux ainsi obtenu et son utilisation
FR2565520B1 (fr) * 1984-06-08 1986-09-05 Sireix Georges Dispositif de coupe automatique des tubes en carton et autres
FR2567069B1 (fr) * 1984-07-03 1986-12-05 Lhomme Sa Procede et dispositif de fabrication d'un tube de carton calibre a tres faible rugosite de surface et haute stabilite dimensionnelle
FR2581343B1 (fr) * 1985-05-06 1988-09-23 Lhomme Sa Tronconneuse de tubes et procede de tronconnage
FR2581341B1 (fr) * 1985-05-06 1987-07-10 Lhomme Sa Procede et dispositif de tronconnage de tubes
ATE72531T1 (de) * 1985-06-18 1992-02-15 Spiro America Inc Rohrschneidevorrichtung.
US4631998A (en) * 1985-07-01 1986-12-30 Alexander Borzym Mandrel apparatus
FR2589384B1 (fr) * 1985-10-30 1988-01-22 Lhomme Sa Dispositif de tronconnage de tubes
FI75298C (sv) * 1986-02-11 1988-06-09 Vendmatic Oy Skäranordning.

Also Published As

Publication number Publication date
EP0225235A1 (fr) 1987-06-10
DE225235T1 (de) 1987-09-24
FI864361A (fi) 1987-05-01
US4889023A (en) 1989-12-26
FR2589384A1 (fr) 1987-05-07
FI86265C (sv) 1992-08-10
DE3671717D1 (de) 1990-07-12
FI86265B (fi) 1992-04-30
CA1304670C (fr) 1992-07-07
US5111721A (en) 1992-05-12
ES2016269B3 (es) 1990-11-01
FI864361A0 (fi) 1986-10-27
FR2589384B1 (fr) 1988-01-22

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