EP0210118B1 - Schneidvorrichtung für eine Maschine zur Herstellung von gewickelten Produkten - Google Patents

Schneidvorrichtung für eine Maschine zur Herstellung von gewickelten Produkten Download PDF

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Publication number
EP0210118B1
EP0210118B1 EP86440064A EP86440064A EP0210118B1 EP 0210118 B1 EP0210118 B1 EP 0210118B1 EP 86440064 A EP86440064 A EP 86440064A EP 86440064 A EP86440064 A EP 86440064A EP 0210118 B1 EP0210118 B1 EP 0210118B1
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EP
European Patent Office
Prior art keywords
cutting
joint
fork
extremity
fact
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
EP86440064A
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English (en)
French (fr)
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EP0210118A1 (de
Inventor
Georges Sireix
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT86440064T priority Critical patent/ATE42493T1/de
Publication of EP0210118A1 publication Critical patent/EP0210118A1/de
Application granted granted Critical
Publication of EP0210118B1 publication Critical patent/EP0210118B1/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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/22—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with a movable member, e.g. a roller
    • B26D1/225—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with a movable member, e.g. a roller for thin material, e.g. for sheets, strips or the like
    • 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
    • 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
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/084—Means for treating work or cutting member to facilitate cutting specially adapted for cutting articles composed of at least two different materials, e.g. using cutters of different shapes

Definitions

  • the invention relates to a cutting device for machines for continuously forming wound articles such as wound tubes subjected to a rotational movement and produced from strips of fibrous, cellulosic, metallic and other materials and comprising cutting means capable of to toggle.
  • a machine for the continuous forming of tubular profiles comprising inter alia a cutting device.
  • This consists of several cutting turrets provided with cutting assemblies.
  • the latter include a jack whose end of the piston is provided with a yoke connected by a hinge pin at the end of a lever which can pivot about an axis.
  • the other end of this lever is provided with an adjustable articulation axis provided with a ball bearing serving as a connecting element between the axis and two flanges trapping between them a cutting blade.
  • document FR-A-2 565 520 also discloses an automatic cutting device for circular tubes of small, medium and large thickness.
  • the mandrel is fixed and the drive of the tubular section is ensured by the rotation of at least two counter rollers bearing on the outer periphery of the circular tube, the drive being effected by friction.
  • the cutting device consists essentially of a knife machined in a very sharp double bevel. This knife can pivot around an axis held by a pair of levers that can tilt around an axis and actuated by a jack.
  • the speed of the piston stroke of this cylinder is adjustable according to the speed of rotation of the circular tube. During this tilting, the knife, locked in rotation during the cutting phase, enters the circular tube.
  • the cutting knife comprises a ratchet wheel integral in rotation with said cutting knife.
  • the ratchet wheel cooperates with a pawl secured to a piston of a jack.
  • the ratchet rotates the cutting knife through the ratchet wheel.
  • the actuator is actuated to cause a partial rotation of the cutting knife to avoid overheating of the latter.
  • the stroke of the piston must be such that the cutting knife comes into contact with the fixed mandrel.
  • the problem with current cutting devices with rotating knives lies in the fact that the knife does not make a satisfactory cut. Indeed, the knife having a section of the order of 0.3 millimeters, successively passing through the outer covering and the cardboard core, comes into contact with the steel mandrel. Therefore, the cutting line is immediately crushed and it forms tiny teeth invisible to the naked eye but perfectly detectable under a microscope. As the wear and tear, the knife has more and more teeth. The cut becomes less and less good and the teeth tear off the outer coating and the particles torn from the latter will settle as dust on the products wound on said tubes.
  • a cutting device comprising a first preliminary cutting phase carried out by a first cutting element whose penetration stroke is slightly less than the thickness of the wall of the product to be cut followed by a final cut made by a second cutting element passing entirely through said wall.
  • a device for cutting, along the length of the strips of corrugated cardboard comprising splitting knives splitting the upper covering layer and the corrugated part split by grinding knives placed at following the splitting knives cutting the lower cover.
  • this device can only be used for materials moving linearly but is not suitable for cutting coiled tube subjected to a rotational movement.
  • the present invention aims to remedy these drawbacks.
  • the invention as characterized in claim 1, solves the problem of creating a cutting device for machines for continuously forming wound articles such as wound tubes subjected to a rotational movement and produced from strips of fibrous, cellulosic, metallic and other materials, provided with tilting cutting means and consisting of two cutting elements, arranged practically one above the other on a tilting yoke formed by two wings, the wire of which of cutting moves according to a tilting arc whose center is the center of a joint located, on the one hand, at one of the ends of the yoke tilting around this joint, and, on the other hand, at the 'one end of a fork whose positioning relative to the yoke is ensured by adjustment means constituted by adjustment nuts moving on threads made at the ends of an axis interposed between the sides of the fork location of the articulation and causing the displacement of a hub disposed between the wings of the yoke on the axis, the other end of the
  • the advantages obtained thanks to this invention essentially consist in retaining the advantages of a cutting device in which the knife keeps a perfect cutting line even after several cuts while making it possible to reduce the size of the cutting device by placing the two elements of practically cuts one above the other.
  • the frame 1 of a machine for continuously forming wound articles, in particular wound tubes produced from strips of fibrous, cellulosic, metallic, plastic and other materials comprises a slide 2 parallel to the steel mandrel 3 serving as a guide for the coiled tube 4, the forming machine not being shown.
  • the steel mandrel 3 is subjected to a rotation in accordance with the synchronization speed of the coiled tube 4.
  • the steel mandrel 3 is fixed and the coiled tube 4 is subjected to a rotational movement by means of counter rollers 5 and 6.
  • a cutting device 7 On this slide 2 slides a cutting device 7 according to the invention.
  • the latter has a base 8 whose lower face 9 has a groove 10, one of the walls 11 of which has the shape of a dovetail and the other wall 12 of which is vertical.
  • the slide 2 has a boss 13 in the form of a dovetail.
  • On the top 16 of the base 8 is fixed by elements fixing 17, 18 a plate 19 whose transverse position can be modified relative to the base 8 by adjustment elements 20, 21.
  • the fixing elements 17, 18 also serve as locking means for the positioning of the cutting device 7 relative to the slide 2 of the frame 1.
  • This plate 19 is capped by a fork 22 consisting of two sides 23, 24 connected by crosspieces 25, 26.
  • the connection between the plate 19 and the fork 22 is provided by fastening elements 27, 28 screwed into the crosspieces 25, 26.
  • the holes 29, 30 made in the plate 19 have a diameter greater than that of the fastening elements 27, 28, which makes it possible to modify the position of the cutting device 7 relative to the coiled tube 4 by bringing it closer or by away and this by means of an adjustment means 31.
  • One of the ends 32 of the fork 22 is crossed by a hinge pin 33 serving as a connection between said end 32 of the fork 22 and the end 34 of a jack 35.
  • the end 36 of the piston 37 of this cylinder 35 is connected by a hinge pin 38 to the end 39 of a yoke 40.
  • the latter can pivot around a hinge 41 located at the other end of the yoke 40 and secured to the other end 42 of the fork 22.
  • the yoke 40 has a hub 43 disposed between the two wings 44, 45 of said yoke 40.
  • this hub 43 is made a bore 46 opening on either side to a housing 47, 48 in which is engaged a ball bearing 49, 50.
  • a spacer 51 Between the ball bearings 49, 50 is interposed a spacer 51.
  • the ball bearings 49, 50 and the spacer 51 are threaded on an axis 52 whose two ends 53, 54 have a bearing 55, 56 engaged in a bore 57, 58 formed in the sides 23, 24 of the fork 22.
  • This axis 52 being held by fastening elements 59, 60, comprises two threads 61, 62 produced in said ends 53, 54. On these threads 61, 62 moves an adjusting nut 63, 64 making it possible to adjust the position of the yoke 40 relative to the fork 22 and, consequently, relative to the median plane 65 of the cutting device 7.
  • the yoke 40 serves as a support for a first cutting element 66, the diameter of which is such that, after the various adjustments, the penetration stroke 67 is slightly less than the thickness 68 of the wall 69 of the wound tube 4. As a result, the cutting line 70 never comes into contact with the steel mandrel 4.
  • the yoke 40 also serves as a support for a second cutting element 71 which, in a second cutting phase, passes entirely through the wall 69 of the coiled tube 4, paying attention to the fact that the cutting wire 72 of this second cutting element 71 touches the steel mandrel 3 to be certain that the cutting of the coiled tube 4 is real and complete.
  • the operation of the cutting device is as follows:
  • the fork 22 is brought closer to the coiled tube 4, and consequently the yoke 40 and the first cutting element 66, so that the cutting wire 70 approaches the coiled tube 4
  • the actuator 35 is actuated so that the yoke 40 pivots around the articulation 41 and that, firstly, the first cutting element 66 penetrates into the wall 69 of the coiled tube 4.
  • the radius 73 of the tilting arc 74 which describes the cutting wire 70 having as its center the center 75 of the articulation 41 is less than the distance 77 between said center 75 and the internal diameter 78 of the coiled tube 4.
  • the second cutting element 71 describing a tilting arc 79 enters the cutting line produced by the first cutting element 66 and ends the cutting of the wound tube 4.
  • the first cutting element 56 is fixed in rotation and the second cutting element 71 rotates.
  • the two cutting elements 66, 71 are subjected to a rotational movement.
  • either one or the other, or the two cutting elements 66, 71 comprise a partial rotation caused by a ratchet wheel cooperating with a pawl secured to a piston of a jack.
  • FIG. 3 representing the adjustment means 80 making it possible to arrange the cutting wire 70 of the first cutting element 66 in the same plane as the cutting wire 72 of the second cutting element 71.
  • the first cutting element 66 is positioned in a fixed manner with respect to the internal faces 81, 82 of the wings 44, 45 of the yoke 40 and that the position of the second cutting element 71 is adjusted.
  • the first cutting element 66 is positioned relative to the second 71.
  • the yoke 40 has an axis 83 held by fastening elements 84. On this axis 83 is threaded a ball bearing 85 held laterally by spacers 86, 87 interposed between said bearing balls 85 and the internal faces 81, 82 of the wings 44, 45 of the yoke 40, these spacers 86, 87 being threaded on the axis 83.
  • This ball bearing 85 is housed in a bore 88 formed in a hub 89 having a boss 90 serving as a core for the cutting element 66. The latter is held in place by a flange 91 made integral with the hub 89 by fixing elements 92.
  • a counter flange 93 is provided provided with fixing elements 94 to hold laterally the ball bearing 85 in the bore 88 of the hub 89.
  • the yoke 40 has a second axis 95 parallel to the axis 83 and held by fastening elements 96, 97.
  • a ball bearing 98 housed in a bore 99 produced in a hub 100 having a boss 101 on which is threaded the second cutting element 71 held by a flange 102 made integral with the hub 100 by fixing elements 103.
  • a counter flange 104 provides lateral support for the ball bearing 98 in the bore 99.
  • the axis 95 has at its two ends 105, .106 a thread 107, 108 on which moves an adjustment wheel 109, 110.
  • These adjustment wheels 109, 110 have a boss 111, 112 cooperating with the internal cage of the ball bearing 98. By means of these adjustment knobs 109, 110, the second cutting element 71 can be positioned relative to the first cutting element 66 which is normally located in the median plane 65 of the cutting device 7.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Making Paper Articles (AREA)

Claims (8)

1. Schneidevorrichtung für Maschinen zur kontinuierlichen Formgebung von gewickelten Gegenständen, wie Wickelrohren, die einer Drehbewegung unterworfen werden und mittels Bändern aus fibrösen, zellulosehaltigen, metallischen oder anderen Materialien hergestellt werden, ist dadurch gekennzeichnet, dass die Schneideinrichtung aus zwei Schneideelementen (66, 67) besteht, die praktisch übereinander an einer Klappbaren Schutzhaube (40) befestigt sind, die aus zwei Scheiben (44, 45) gebildet wird. Der Trennfaden (70, 72) verlagert sich entsprechend dem Kipparm (74, 79), dessen Zentrum (75) der Mittelpunkt eines Gelenks (41) ist, das sich einerseits an einem Ende der Schutzhaube (40) befindet, die sich um dieses Gelenk (41) neigt, und andererseits an einem der Endpunkte (42) einer Gabel (22), deren Einstellung im Verhältnis zur Schutzhaube (40) mittels einer Regelung durch Regelschrauben (63, 64) kontrolliert wird, die sich auf Gewinden (61, 62) bewegen, die auf den Endstücken (53, 54) einer Achse (52) angebracht sind, die zwischen den Seitenflächen (23, 24) der Gabel (22) an dem Einbauplatz des Gelenks (41) eingebaut ist und die Fortbewegung einer Nabe (43) bewirkt, die sich zwischen den Scheiben (44, 45) der Schutzhaube (40) auf der Achse (52) befindet. Der andere Endpunkt (32) der Gabel (22) ist mittels einer Gelenkachse (33) an den Endpunkt (34) eines Zylinders (35) gekoppelt, dessen Endpunkt (36) des Kolbens (37) mit einer Gelenkachse (38) an den gegenüberliegenden Endpunkt (39) der mit einem Gelenk (41) ausgestatteten Schutzhaube (40). Das erste Schneideelement (66) besitzt einen Schnittverlauf (67), der nicht ganz so tief (68) in die Wandstärke (69) des sich drehenden Wickelrohrs (4) reicht wie der des zweiten Schneideelements (67), das die genannte Wand des Wickelrohrs (4) ganz trennt.
2. Die Schneidevorrichtung gemäss Anspruch 1 ist dadurch gekennzeichnet, dass der Trennfaden (70) des ersten Schneideelements (66) einen Kipparm (74) umfasst, dessen Radius (73) um den Mittelpunkt (75) des Gelenks (41) kleiner ist als die Entfernung (77) zwischen dem genannten Mittelpunkt (75) und dem Innendurchmesser (78) des Wickelrohrs (4).
3. Die Schneidevorrichtung gemäss Anspruch 1 ist dadurch gekennzeichnet, dass sie eine Fussplatte (8) mit einer Nut (10) besitzt, die auf einer Schiene (2) gleitet, die plan auf dem Gestell (1) der formgebenden Maschine aufliegt. Diese Fussplatte bietet Möglichkeiten zum Feststellen (17, 18), mit denen die Schneideeinrichtung (7) im Verhältnis zur Gleitschiene (2) in Position gebracht werden kann.
4. Die Schneidevorrichtung gemäss Anspruch 1 ist gekennzeichnet dadurch, dass sie eine Regelungsvorrichtung (31) zur Positionierung des Schneideapparats (1) gegenüber dem Wickelrohr (4) aufweist.
5. Die Schneidevorrichtung gemäss Anspruch 1 ist dadurch gekennzeichnet, dass die Schneidelemente (66, 71) mit Regeleinrichtungen (107 bis 110) für die Schneidelemente (66, 71) gegenüber der mittleren Oberfläche (65) ausgerüstet sind. Sie bestehen aus Regelungsradchen (109, 110), die sich auf Gewinden (107, 108) einer Achse (95) bewegen, die zwischen den Scheiben (44, 45) der Schutzhaube (40) eingebaut sind und eine Bewegung der Naben (89, 100) der Schneidelemente (66, 71) bewirken, die einen Trennfaden (70, 72) tragen, die sich beide in der gleichen Trennebene befinden.
6. Die Schneidevorrichtung gemäss Anspruch 5 ist dadurch gekennzeichnet, dass das erste Schneidelement (66) und/oder das zweite Schneidelement (71) Regelungsmöglichkeiten besitzen (107 bis 110).
7. Die Schneidevorrichtung gemäss Anspruch 1 ist dadurch gekennzeichnet, dass sie ein erstes Schneidelement (66) trägt, das fixiert ist oder in rotativer Form beweglich ist.
8. Die Schneidevorrichtung gemäss Anspruch 1 ist dadurch gekennzeichnet, das sie Schneidelemente (66, 71) trägt, die fixiert oder in rotativer Form beweglich sind.
EP86440064A 1985-07-22 1986-07-22 Schneidvorrichtung für eine Maschine zur Herstellung von gewickelten Produkten Expired EP0210118B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86440064T ATE42493T1 (de) 1985-07-22 1986-07-22 Schneidvorrichtung fuer eine maschine zur herstellung von gewickelten produkten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8511287 1985-07-22
FR8511287A FR2584970B1 (fr) 1985-07-22 1985-07-22 Dispositif de coupe pour machines de formage d'articles enroules

Publications (2)

Publication Number Publication Date
EP0210118A1 EP0210118A1 (de) 1987-01-28
EP0210118B1 true EP0210118B1 (de) 1989-04-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP86440064A Expired EP0210118B1 (de) 1985-07-22 1986-07-22 Schneidvorrichtung für eine Maschine zur Herstellung von gewickelten Produkten

Country Status (4)

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EP (1) EP0210118B1 (de)
AT (1) ATE42493T1 (de)
DE (1) DE3662986D1 (de)
FR (1) FR2584970B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104128950A (zh) * 2014-06-30 2014-11-05 永高股份有限公司 塑料管材的切割修边机

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI981573A1 (it) * 1998-07-09 2000-01-09 Italconverting Srl Dispositivo di taglio di rotoli di materiale in foglio
FR2784927B1 (fr) * 1998-10-27 2000-12-08 Eberle Sa Procede de coupe ou de recoupe de tubes et dispositif pour la mise en oeuvre de ce procede
US6460759B1 (en) 2000-05-02 2002-10-08 Sonoco Development, Inc. Multi-ply composite container with regions of weakened strength and method for manufacturing same
CN105922327A (zh) * 2016-06-15 2016-09-07 常州市荣顺电子有限公司 一种高效率塑料管专用切割机
CN110508864B (zh) * 2019-09-11 2021-05-14 湖南恒远新材料科技发展有限公司 一种用于直径较大的排水管道切割设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2940350A (en) * 1956-08-23 1960-06-14 Us Rubber Co Plural slitter cutters and the mounting means therefor
DE1961025A1 (de) * 1969-12-05 1971-09-23 Gen Corrugated Machinery Verfahren und Vorrichtung zum Laengsschneiden von Wellpappenbahnen
DD109827A1 (de) * 1973-12-17 1974-11-20
DE2931970C2 (de) * 1979-08-07 1982-10-21 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Schneidvorrichtung zum Längsschneiden einer Papierbahn
FR2480179A1 (fr) * 1980-04-15 1981-10-16 Sireix Georges Machine pour le formage de profile tubulaire
JPS5943114U (ja) * 1982-09-16 1984-03-21 北海製「あ」株式会社 スリツタ装置における刃合せ装置
FR2565520B1 (fr) * 1984-06-08 1986-09-05 Sireix Georges Dispositif de coupe automatique des tubes en carton et autres

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104128950A (zh) * 2014-06-30 2014-11-05 永高股份有限公司 塑料管材的切割修边机
CN104128950B (zh) * 2014-06-30 2016-03-09 永高股份有限公司 塑料管材的切割修边机

Also Published As

Publication number Publication date
EP0210118A1 (de) 1987-01-28
FR2584970B1 (fr) 1989-08-18
FR2584970A1 (fr) 1987-01-23
DE3662986D1 (en) 1989-06-01
ATE42493T1 (de) 1989-05-15

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