EP0168334B1 - Schneidvorrichtung für Rohre aus Papier und sonstigen Materialien - Google Patents

Schneidvorrichtung für Rohre aus Papier und sonstigen Materialien Download PDF

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Publication number
EP0168334B1
EP0168334B1 EP85440038A EP85440038A EP0168334B1 EP 0168334 B1 EP0168334 B1 EP 0168334B1 EP 85440038 A EP85440038 A EP 85440038A EP 85440038 A EP85440038 A EP 85440038A EP 0168334 B1 EP0168334 B1 EP 0168334B1
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EP
European Patent Office
Prior art keywords
cutting
fitted
rotation
counter
rollers
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
Application number
EP85440038A
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English (en)
French (fr)
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EP0168334A1 (de
Inventor
Georges Sireix
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Individual
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Individual
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Filing date
Publication date
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Priority to AT85440038T priority Critical patent/ATE34691T1/de
Publication of EP0168334A1 publication Critical patent/EP0168334A1/de
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Publication of EP0168334B1 publication Critical patent/EP0168334B1/de
Expired 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
    • 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
    • Y10T82/16065—Combined with means to apply fluid
    • 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
    • Y10T82/16951—Tool adjustment and/or stop
    • 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

Definitions

  • the invention relates to an automatic cutting device for circular tubes of small, medium and large thickness obtained by gluing several strips of fibrous, cellulosic, metallic, plastic materials and, in general, any material in strips and produced at using a spiraling machine, a profiling machine or an extruder comprising at least one cutting assembly.
  • Document FR-A 2370581 already discloses a device for cutting tubular elements of cardboard and similar materials, installed on a machine allowing the production of tubular packaging made up of strips glued to one another in a pitch of determined screw, these strips being of fibrous, cellulosic, metallic, plastic and other materials.
  • This cutting device allowing a cut on the fly, comprises a carriage sliding along a rail held by supports. On this carriage is mounted an electric motor, the shaft of which is provided with a saw blade provided with teeth. This cooperates with a cutting counter-roller secured to the carriage. The latter is integral with a translation device ensuring the advance of the carriage. A certain space is provided between the saw blade and the counter roller to allow the passage of the tubular element. During cutting, the saw blade is brought forward, subjected to continuous rotation by the electric motor, in the direction of the counter-roller.
  • machines making it possible to make packaging as defined above.
  • These machines include two drums movable in rotation and connected to each other by a belt describing a helical movement causing, on the one hand, a helical winding of the different strips of paper, metal and others previously provided with a layer of glue and, d on the other hand, the continuous advance of the tubular element on a spindle.
  • a shaft requesting a multiple cutting device subjected to a displacement in the axis of advance of the tubular element whose variable speeds of advance and cuts are synchronized with the speed of advance of the tubular element.
  • This device comprises a number of saw blades corresponding to the number of cuts that one wants to make.
  • These cutting elements are subjected to a triple displacement in space, namely a rotation about its axis, a pendulum movement to cut the tubular element and a longitudinal displacement according to the advance of the tubular element.
  • Cutting devices are also known comprising knives and fixed modules, the drive of which is carried out from the inside of the tube by means of an extendable clamp.
  • the present invention aims to remedy these drawbacks.
  • the invention as characterized in the claims, solves the problem of creating an automatic device for cutting circular tubes of small, medium and large thickness, obtained by bonding several strips of fibrous, cellulosic, metallic materials , plastics and, in general, any material in strips and produced using a spiraling machine, a profiling machine or an extruder, comprising at least one cutting assembly formed by a pair of pivoting levers around an axis located at one of their ends and maintained by bearings integral with the frame while the other end of the same bearings is connected by an axis to a piston of a jack causing, by tilting, the advance a cutting knife with a double bevel in the direction of a fixed mandrel on which the circular tube coming from the spiraling machine, profiling machine or extruder freely rotates, this cutting knife being provided with a ratchet wheel integral in rotation of this last, sharp knife and ratchet wheel being mounted on an axis located between axes, a
  • each cutting assembly comprises means ensuring a blocking of the cutting knife during cutting but giving said cutting knife a fragmented rotation taking place between two consecutive cuts.
  • Fig. 5 shows in plan view the cutting device allowing a plurality of cuts. We refer to figure 1.
  • the cutting device 1 comprises a mandrel 2 made of a material resistant to wear but whose coefficient of friction is low. According to the invention, this mandrel 2 is fixed from the rotation point of view. On the outer periphery 3 of this mandrel 2 freely rotates a circular tube 4 coming from a spiraling machine, a profiling machine or an extruder. This circular tube 4 is obtained by gluing several strips of fibrous, cellulosic, metallic, plastic materials, and, in general, any strip material. Because the mandrel 2 has a very low coefficient of friction, the circular tube 4 easily rotates on said mandrel 2.
  • These two counter-rollers 8, 9 comprising a metal core provided with an adherent coating, are subjected to a rotational movement whose speed is synchronized with the rotational speed of the circular tube 4.
  • the two counter-rollers 8, 9 are integral in rotation with a shaft 10, 11 disposed at one end 12, 13 of two pairs of levers 14, 15.
  • the latter is driven by a motor element 20, 21.
  • These two motor elements 20, 21 are integral in rotation with an intermediate shaft 22 disposed at the other end 23, 24 of the pairs of levers 14 , 15.
  • This intermediate shaft 22 also serves as an axis of rotation 25 for the pairs of levers 14, 15.
  • a driven element 26 of a central transmission 27 including the driving element 28 is integral in rotation with the shaft 29 of a gearmotor-variator30.
  • each lever cylinder 31, 32 To apply the two counter rollers 8, 9 against the outer periphery 5 of the circular tube 4 or vice versa to break the contact between the two counter rollers 8, 9 and the outer periphery 5 of the circular tube 4, there is provided for each lever cylinder 31, 32.
  • the pistons 33, 34 of these cylinders 31, 32 are connected by a hinge pin 35, 36 to a yoke 37, 38 secured to each of the levers 14, 15 while the end 39, 40 of cylinders 31, 32 is connected by a hinge pin 41,42 to the frame (not shown) of the cutting device.
  • a cutting assembly which consists essentially of a knife machined in a very sharp double bevel 43.
  • This knife 43 can pivot around an axis 44 held by a pair of levers 45.
  • These levers 45 can autor pivot an axis 46 located at one end 47 of the levers 45, this axis 46 being held by bearings 48 integral with the frame.
  • the other end 49 of the levers 45 is connected by an axis 50 to the piston 51 of a cylinder 52.
  • This cylinder 51 connected by an axis 53 to the frame, causes the levers 45 to tilt around the axis 46.
  • the speed of the stroke of the piston 51 of the jack 52 is adjustable as a function of the speed of rotation of the circular tube 2.
  • the cutting knife 43 comprises a ratchet wheel 54 integral in rotation with said cutting knife 43.
  • the teeth 55 of this ratchet wheel 54 cooperate with a pawl 56 secured to a piston 57 of a jack 58 rendered by a n hinge pin 59 to the piston 51 of the cylinder 52.
  • the pawl 56 blocks in rotation the ratchet wheel 54 and, consequently, blocks in rotation the cutting knife 43.
  • the jack 58 is actuated.
  • the pawl 56 causes a partial rotation of the cutting knife 43.
  • lubrication means 60 are also provided, consisting of a lubrication nozzle 61 disposed at the end of a lubrication circuit 62.
  • FIGS. 2 and 3 showing another embodiment of the cutting device 1 subjected to a movement in the direction of advance of the circular tube 4.
  • a table 63 sliding on slides 64 is provided, 65, the ends 66, 67, 68, 69 of which are held by supports 70, 71, 72, 73 secured to the frame.
  • the movement of the table 63 is ensured by a gearmotor-variator 74, the shaft 75 of which is provided with a screw 76 on which moves a nut 77 mounted on the end 78 of a support 79 integral with the table 63.
  • Relative to the median plane 80 of the latter means are also provided making it possible to move the cutting assembly relative to the table 63.
  • These means are one or two adjustable beams 81, 82 on which a knife holder 83 slides.
  • a knife holder 83 On this knife holder 83 are arranged the levers 45, the jack 52 causing the cutting knife 43 to advance with its ratchet wheel 54 towards the mandrel 2, the jack 58 with its pawl 56 and the lubrication means 60.
  • a forming mandrel 84 is also provided, which is also integral with the frame. Through this forming mandrel 84 passes a mechanical connection 85 to keep the mandrel 2 stationary.
  • the shaft 29 of the gearmotor-variator 30 is coupled to a secondary shaft 86.
  • This secondary shaft 86 rotates the motor element 28 of the central transmission 27 while allowing said motor element 28 to slide on the secondary shaft 86.
  • the counter-rollers 8 are given a certain length so that the latter ensure constant drive on either side of the cutting line 87 as well of the circular tube 4 as of the section 4 1 and this, until the cut is completely carried out.
  • the jacks 31, 32 have been replaced by a single jack 88 actuating pistons 89, 90 in the opposite direction, which makes it possible to give the levers 14 1 , 14 2 , 15 1 , 15 2 movements synchronized for bringing the counter rollers 8, 9 closer or further away from the circular tube 4.
  • the cutting device according to the invention can be mounted on machines intended to cut or cut circular tubes 4 either individually or with multiple cuts.
  • a movable carriage 91 composed of two supports 92, 93 arranged perpendicular to the fixed mandrel 2.
  • the ends 94, 95, 96, 97 of these supports 92, 93 are provided with bearings 98, 99, 100, 101 sliding on slides 102, 103 held by supports 104, 105, 106, 107 integral with the frame.
  • the adjustable beam 81 comprising a plurality of knife holders 83 each provided with levers 45, with the jack 52 causing the cutting knife 43 provided with its ratchet wheel 53 to move towards the mandrel 2 , of the jack 58 with its pawl 56 and the lubrication means 60.
  • the movement of the mobile carriage 91 is ensured by the gearmotor-variator 74, the shaft 75 of which is provided with the screw 76 on which the nut 77 moves, secured to one of the ends 114, 115 of two axes 116, 117 of which the other end 118, 119 is integral with the mobile carriage 91.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Claims (6)

  1. Schneidvorrichtung für kreisförmige Rohre geringer, mittlerer und starker Dicke, die durch Leimen mehrerer Streifen aus Faser-, Zellulose-, Metall- oder Plastikwerkstoff oder ganz allgemein aus Streifenmaterial mit Hilfe einer Spiralwickel-, Formungs- oder Extrudiervorrichtung hergestellt werden, und zumindest eine Schneideinheit besitzt, gekennzeichnet durch einen festen Dorn (2), auf dem das aus einer Spiralwikkel-, einer Formungs- oder Extrudiervorrichtung hervorgebrachte kreisförmige Rohr (4) frei drehbar ist und der mit der Schneideinheit zusammenarbeitet, die gebildet ist aus:
    - einem Hebelpaar (45), das um eine Achse (46) schwenkbar ist, die an einem seiner Enden (47) liegt und von mit dem Gehäuse verbundenen Lagern (48) gehalten wird, wogegen das andere Ende (49) derselben Lager (45) durch eine Achse (50) mit einem Kolben (51) eines Zylinders (52) verbunden ist, der durch Hin- und Herbewegen den Vorschub einer Schneide mit zweifacher Zuschärfungsfläche (43) in Richtung des festen Dorns (2) bewirkt, wobei die Schneide (43) mit einem Schieberad (54) versehen ist, das mit diesem drehfest verbunden ist, und wobei die Schneide (43) und das Schieberad (54) auf einer Achse (44) sitzen, die zwischen den Achsen (46) und (50) liegt; - einem Zylinder (58), dessen Kolben (57) mit einer Sperrung (56) versehen ist, die mit dem Schieberad (54) zusammenarbeitet, um die Schneide (43) zum Zeitpunkt des Schnittes in der Drehung zu sperren und um ihr eine partielle Drehung zwischen zwei aufeinanderfolgenden Schnitten zu verleihen;
    - Schmiereinrichtungen (60) bestehend aus einer an einem Ende des ÖI- oder Schmierkreises (62) angeordneten Schmierdüse (61) und antreibenden Gegenrollen (8, 9), die von einer Motor-Getriebe-Kombination mit veränderlicher Drehzahl (30) einer Drehbewegung ausgesetzt werden, die mit der Drehgeschwindigkeit des kreisförmigen Rohres (4) synchronisiert ist, und die letztere beiderseits der Schnittlinie (87) ohne Belastung des festen Doms (2) antreiben.
  2. 2. Schneidvorrichtung nach Anspruch 1, gekennzeichnet durch zumindest einen Schneidhalter (83), der auf zumindest einem regelbaren Träger (81) gleitend geführt wird, der entweder mit einem beweglichen Tisch (63) oder mit einem beweglichen Schlitten (91) fest verbunden ist, wobei die Verschiebung des beweglichen Tisches (63) oder des beweglichen Schlittens (91) durch Antriebsmittel gewährleistet wird, die aus einer Motor-Getriebe-Kombination mit veränderlicher Drehzahl (74) bestehen, deren Wellen (75) mit einer Schraube (76) versehen ist, auf der eine Mutter (77) beweglich geführt wird, die mit dem beweglichen Tisch (63) oder dem Schlitten (91) verbunden ist.
  3. 3. Schneidvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sie für jede Gegenrolle (8,9), die eine mit einem haftenden Überzug versehene Seele darstellt, ein Hebelpaar (14, 15) aufweist, das um eine Drehachse (25) drehbar ist, die aus einer Zwischenwelle (22) gebildet ist, die über ein Vorgelege (18, 19) an der Welle (10, 11) liegt, auf der die Gegenrolle (8, 9) eingesetzt ist, wobei die Gegenrollen (8, 9) durch Antriebsmittel angetrieben werden, die aus einer Motor-Getriebe-Kombination mit veränderlicher Drehzahl (30) bestehen, deren Welle (29) mit einer Antriebseinrichtung (28) versehen ist, durch die über eine zentrale Ubertragung (27) ein drehfest von der Zwischenwelle (22) geführtes Teil (26) angetrieben wird.
  4. 4. Schneidvorrichtung nach Anspruch 1, dadurch gekennzeicnet, dass sie zum Anlegen der beiden Gegenrollen (8, 9) an den Aussenumfang (5) des kreisförmigen Rohres (4) oder demgegenüber zum Unterbrechen des Kontaktes zwischen den beiden Gegenrollen (8, 9) und dem Aussenumfang (5) des kreisförmigen Rohres (4) einen Zylinder (31, 32) aufweist, der zwischen jeden Hebel (14, 15) und dem Gehäuse eingeschoben ist, wobei der Kolben (33, 34) über einen Gelenkbolzen (35, 36) mit einer an jedem Hebel (14, 15) liegenden Abdeckung (37, 38) verbunden ist, während das Ende (39, 40) über einen Gelenkbolzen (41, 42) mit dem Gehäuse verbunden ist, wobei ein Zylinder (88) zwischen den beiden Hebeln (14, 15) eingeschoben und mit zwei gegengesetzt wirkenden Kolben (89,90) versehen ist.
  5. 5. Schneidvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Gegenrollen (8, 9) eine derartige Breite besitzen, dass sie beiderseits der Schnittlinie (87) des kreisförmigen Rohres (4) den Antrieb gewährleistet.
  6. 6. Schneidvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der bewegliche Tisch (63), der auf den Gleitschienen (64, 65) gleitend geführt wird, deren Enden (66 bis 69) von den fest mit dem Gehäuse verbundenen Ständern (70 bis 73) gehalten werden, eine Schneideinheit und eine Gegenrolleneinheit (8, 9) aufweist, wogegen der bewegliche Schlitten (91), der sich aus den beiden Ständern (92, 93) zusammensetzt, die senkrecht zum festen Dorn (2) angeordnet sind, dessen Enden (94, bis 97) mit Lagerbüchsen (98 bis 101) versehen sind, die gleitend auf den Gleitschienen (102, 103) geführt werden, die von den mit dem Gehäuse fest verbundenen Ständern (104 bis 107) gehalten werden, mehrere Schneideinheiten aufweist, die mit den sich über die gesamte Breite des beweglichen Schlittens (91) erstreckenden Gegenrollen (8, 9) oder mit mehreren Gegenrollen (81, 82, 83, 84...) zusammenarbeiten.
EP85440038A 1984-06-08 1985-06-03 Schneidvorrichtung für Rohre aus Papier und sonstigen Materialien Expired EP0168334B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85440038T ATE34691T1 (de) 1984-06-08 1985-06-03 Schneidvorrichtung fuer rohre aus papier und sonstigen materialien.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8409176A FR2565520B1 (fr) 1984-06-08 1984-06-08 Dispositif de coupe automatique des tubes en carton et autres
FR8409176 1984-06-08

Publications (2)

Publication Number Publication Date
EP0168334A1 EP0168334A1 (de) 1986-01-15
EP0168334B1 true EP0168334B1 (de) 1988-06-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP85440038A Expired EP0168334B1 (de) 1984-06-08 1985-06-03 Schneidvorrichtung für Rohre aus Papier und sonstigen Materialien

Country Status (6)

Country Link
US (1) US4693149A (de)
EP (1) EP0168334B1 (de)
JP (1) JPS6195896A (de)
AT (1) ATE34691T1 (de)
DE (1) DE3562996D1 (de)
FR (1) FR2565520B1 (de)

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CN113635380A (zh) * 2021-10-14 2021-11-12 江苏众成复合材料有限责任公司 一种玻璃钢管道生产加工装置

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Publication number Priority date Publication date Assignee Title
CN113635380A (zh) * 2021-10-14 2021-11-12 江苏众成复合材料有限责任公司 一种玻璃钢管道生产加工装置
CN113635380B (zh) * 2021-10-14 2022-03-11 江苏众成复合材料有限责任公司 一种玻璃钢管道生产加工装置

Also Published As

Publication number Publication date
FR2565520A1 (fr) 1985-12-13
FR2565520B1 (fr) 1986-09-05
JPS6195896A (ja) 1986-05-14
EP0168334A1 (de) 1986-01-15
DE3562996D1 (en) 1988-07-07
ATE34691T1 (de) 1988-06-15
US4693149A (en) 1987-09-15

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