EP0210118A1 - Cutting apparatus for machines making wound products - Google Patents

Cutting apparatus for machines making wound products Download PDF

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Publication number
EP0210118A1
EP0210118A1 EP86440064A EP86440064A EP0210118A1 EP 0210118 A1 EP0210118 A1 EP 0210118A1 EP 86440064 A EP86440064 A EP 86440064A EP 86440064 A EP86440064 A EP 86440064A EP 0210118 A1 EP0210118 A1 EP 0210118A1
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EP
European Patent Office
Prior art keywords
cutting
fork
joint
cutting device
yoke
Prior art date
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Granted
Application number
EP86440064A
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German (de)
French (fr)
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EP0210118B1 (en
Inventor
Georges Sireix
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Individual
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Individual
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Priority to AT86440064T priority Critical patent/ATE42493T1/en
Publication of EP0210118A1 publication Critical patent/EP0210118A1/en
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    • 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.
  • Document FR-A-2 480 179 already discloses 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.
  • the plates supporting the cutting turrets move horizontally while the cutting turrets are rotated and pivot around the advancing tubular profile.
  • the cutting blades fixed in rotation, are applied via the jacks to the periphery of the tubular profile until the cutting wire of these cutting blades is applied to the periphery of the mandrel. .
  • said cutting blades are released and the plates are returned to their starting position for a new cut.
  • document FR-A-84.09176 also discloses an automatic device for cutting 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 of an axis and actuated by a jack.
  • the speed of the piston stroke of this cylinder is adjustable depending on 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 is 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 wear and tear, the knife has more and more teeth. The cut becomes less and less good and the teeth tear off the external coating and the particles torn from the latter will arise 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, the penetration stroke of which 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.
  • document FR-A-2,071,689 discloses 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 shredding knives placed afterwards. splitting knives cutting the bottom 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 the claims, solves the problem of creating a cutting device for machines for continuously forming rolled articles such as rolled tubes subjected to a rotational movement and produced from strips of fibrous, cellulosic, metallic and other materials provided with two cutting elements, arranged practically one below the other on a tilting yoke whose cutting wire moves according to a tilting arc whose center is the center of an articulation around which the yoke rocks, the first cutting element having a penetration stroke slightly less than the thickness of the wall of the coiled tube subjected to the movement of rotation and the second cutting element crossing entirely said wall of the coiled tube.
  • 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 have been made. by reducing the size of the cutting device by placing the two cutting elements almost 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 fastening elements 17 , 18 a plate 19, the transverse position of which can be modified relative to the base 8 by adjustment elements 20, 21.
  • the fixing elements 17, 18 also serve as blocking means for positioning 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 ensured 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 section 7 with respect to the rolled-up tube 4 by moving it towards or away from it 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 is integral with 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 wound tube 4, paying attention to the fact that the cutting wire 72 of this second cutting element 71 grazes the steel mandrel 3 to be certain that the cut 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 66 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 laterally hold 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.
  • adjustment wheels 109, 110 have a boss 111, 112 cooperating with the internal cage of the ball bearing 98.
  • 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 device cutting 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)

Abstract

1. Cutting apparatus for machines making wound products such as wound tubes subject to a movement of rotation and made from strips of fibrous, cellulose, metallic and other materials and comprising means of cutting which can rock, characterized by the fact that the means of cutting are two cutting elements (66, 67), located practically above one another on a rocking fork-joint (40) formed of two wings (44, 45), whose cutting wire (66, 67) moves following a rocking arc (74, 79), the centre of which is the centre (75) of a joint (41) situated, on the one hand, at one of the extremities (42) of the fork-joint (40) rocking around this joint (41) and, on the other hand, at one of the extremities (42) of a fork (22) the positioning of which, in relation to the fork-joint (40) is ensured by means of adjustment consisting of adjusting nuts (63, 64) moving on threads (61, 62) cut at the extremities (53, 54) of a spindle (52) interposed between the flanks (23, 24) of the fork (22) at the place of the joint (41) and causing the displacement of a hub (43) located between the wings (44, 45) of the fork-joint (40) on the spindle (52), the other extremity (32) of the fork (22) being linked by a connecting spindle (33) to the extremity (34) of a cylinder (35) of which the extremity (36) of the piston (35) is linked by a connecting spindle (38) to the extremity (39) opposite to the extremity of the fork-joint (40) provided with the joint (41), the first cutting element (66) having a penetration stroke (66) slightly less than the thickness (68) of the wall (69) of the wound tube (4) subject to a movement of rotation, and the second cutting element (67) going completely through this wall (60) of the wound tube (4).

Description

L'invention concerne un dispositif de coupe pour machines de formage en continu d'articles enroulés tels que tubes enroulés soumis à un mouvement de rotation et réalisés à partir de bandes en matériaux fibreux, cellulosiques, métalliques et autres.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.

On connaît déjà par le document FR-A- 2 480 179, une machine pour le formage continu de profilés tubulaires comprenant entre autres un dispositif de coupe. Celui-ci se compose de plusieurs tourelles de coupe pourvues d'ensembles de coupe. Ces derniers comportent un vérin dont l'extrémité du piston est pourvue d'une chape reliée par un axe d'articulation à l'extrémité d'un levier pouvant pivoter autour d'un axe. L'autre extrémité de ce levier est pourvue d'un axe d'articulation réglable pourvu d'un roulement à billes servant d'élément de liaison entre l'axe et deux flasques emprisonnant entre eux une lame de coupe. Au-fur-et-à-mesure de l'avance du profilé tubulaire sur le mandrin central, due à la rotation de ce dernier, les plateaux supportant les tourelles de coupe se déplacent horizontalement alors que les tourelles de coupe sont entraînées en rotation et pivotent autour du profilé tubulaire qui avance. En même temps, on applique par l'intermédiaire des vérins, les lames de coupe, fixes en rotation, sur le pourtour du profilé tubulaire jusqu'à ce que le fil de coupe de ces lames de coupe s'applique sur le pourtour du mandrin. Après la coupe, lesdites lames de coupe sont dégagées et les plateaux sont ramenés à leur position de départ pour une nouvelle coupe.Document FR-A-2 480 179 already discloses 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. As the tubular section advances on the central mandrel, due to the rotation of the latter, the plates supporting the cutting turrets move horizontally while the cutting turrets are rotated and pivot around the advancing tubular profile. At the same time, the cutting blades, fixed in rotation, are applied via the jacks to the periphery of the tubular profile until the cutting wire of these cutting blades is applied to the periphery of the mandrel. . After cutting, said cutting blades are released and the plates are returned to their starting position for a new cut.

Par ailleurs, on connaît également, par le document FR-A- 84.09176, un dispositif de coupe automatique de tubes circulaires de faible, moyenne et forte épaisseur. Selon ce document, le mandrin est fixe et l'entraînement du profilé tubulaire est assuré par la rotation d'au moins deux contre-rouleaux prenant appui sur le pourtour extérieur du tube circulaire, l'entraînement se faisant par friction. Le dispositif de coupe est constitué essentiellement par un couteau usiné en double biseau très tranchant. Ce couteau peut pivoter autour d'un axe maintenu par une paire de leviers pouvant basculer autour d'un axe et actionnés par un vérin. La vitesse de la course du piston de ce vérin est réglable en fonction de la vitesse de rotation du tube circulaire. Au cours de ce basculement, le couteau, bloqué en rotation lors de la phase de coupe, pénètre dans le tube circulaire. A cet effet, le couteau tranchant comporte une roue à rochet solidaire en rotation dudit couteau tranchant. La roue à rochet coopère avec un cliquet solidaire d'un piston d'un vérin. En phase de coupe, le cliquet bloque en rotation le couteau tranchant par l'intermédiaire de la roue à rochet. Après la coupe, on actionne le vérin pour provoquer une rotation partielle du couteau tranchant pour éviter un échauffement de ce dernier. Pour que le tube circulaire soit coupé, il est nécessaire que la course du piston soit telle que le couteau tranchant rentre en contact avec le mandrin fixe.Furthermore, document FR-A-84.09176 also discloses an automatic device for cutting circular tubes of small, medium and large thickness. According to this document, 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 of an axis and actuated by a jack. The speed of the piston stroke of this cylinder is adjustable depending on the speed of rotation of the circular tube. During this tilting, the knife, locked in rotation during the cutting phase, enters the circular tube. To this end, 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. In the cutting phase, the ratchet rotates the cutting knife through the ratchet wheel. After cutting, the actuator is actuated to cause a partial rotation of the cutting knife to avoid overheating of the latter. In order for the circular tube to be cut, it is necessary that the stroke of the piston is such that the cutting knife comes into contact with the fixed mandrel.

Cependant, ces dispositifs de coupe connus présentent plusieurs inconvénients. En effet, pour une certaine gamme de tubes enroulés utilisés dans l'industrie et principalement dans l'industrie textile, pour le bobinage des fils naturels ou synthétiques et dans l'industrie de films ou bandes magnétiques, il est nécessaire que les tubes enroulés, parfaitement coupés d'équerre, soient absolument dépourvus de toute poussière. En raison de leur utilisation, ces tubes enroulés, devant être très lisses, comportent un revêtement extérieur plus noble que l'âme centrale en carton. Pour éviter la formation de poussières due à la déchiqueture de ce revêtement extérieur, il est donc impératif que ce dernier soit coupé proprement par le couteau.However, these known cutting devices have several drawbacks. Indeed, for a certain range of coiled tubes used in the industry and mainly in the textile industry, for the winding of natural or synthetic threads and in the film or magnetic tape industry, it is necessary that the coiled tubes, perfectly cut square, are absolutely free of any dust. Due to their use, these coiled tubes, which must be very smooth, have a more noble outer coating than the central cardboard core. To avoid the formation of dust due to the shredding of this external coating, it is therefore imperative that the latter is cut cleanly by the knife.

Toutefois, le problème des dispositifs de coupe actuels à couteaux tournants réside dans le fait que le couteau n'effectue pas une coupe satisfaisante. En effet, le couteau ayant une section de l'ordre de 0,3 millimètres, traversant successivement le revêtement extérieur et l'âme en carton, entre en contact avec le mandrin en acier. De ce fait, le fil de coupe est de suite écrasé et il se forme de minuscules dents invisibles à l'oeil nu mais parfaitement décelables au microscope. Au-fur-et-à-mesure de l'usure, le couteau présente de plus en plus de dents. La coupe devient de moins en moins bonne et les dents arrachent le revêtement extérieur et les particules arrachées de ce dernier vont se poser en tant que poussières sur les produits enroulés sur lesdits tubes.However, 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 wear and tear, the knife has more and more teeth. The cut becomes less and less good and the teeth tear off the external coating and the particles torn from the latter will arise as dust on the products wound on said tubes.

Il s'est avéré souhaitable de disposer d'un dispositif de coupe comportant une première phase de coupe préalable effectuée par un premier élément de coupe dont la course de pénétration est légérement inférieure à l'épaisseur de la paroi du produit à couper suivie d'une coupe finale réalisée par un second élément de coupe traversant entièrement ladite paroi.It has proved desirable to have a cutting device comprising a first preliminary cutting phase carried out by a first cutting element, the penetration stroke of which 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.

Ainsi on connaît, par le document FR-A-2.071.689 un dispositif pour découper, suivant la longueur des bandes de carton ondulé comportant des couteaux fendeurs fendant la couche de couverture supérieure et la partie ondulée dédoublée par des couteaux broyeurs placés à la suite des ccuteaux fendeurs coupant la couverture inférieure. Toutefois, ce dispositif ne peut être utilisé que pour des matériaux se déplaçant linéairement mais ne peut convenir pour la coupe de tube enroulé soumis à un mouvement de rotation.Thus, document FR-A-2,071,689 discloses 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 shredding knives placed afterwards. splitting knives cutting the bottom cover. However, this device can only be used for materials moving linearly but is not suitable for cutting coiled tube subjected to a rotational movement.

La présente invention a pour but de remédier à ces inconvénients. L'invention, telle qu'elle est caractérisée dans les revendications résout le probteme consistant à créer un dispositif de coupe pour machines de formage en continu d'articles enroulés tels que tubes enroulés soumis à un mouvement de rotation et réalisés à partir de bandes en matériaux fibreux, cellulosiques, métalliques et autres pourvu de deux éléments de coupe, disposés pratiquement l'un au dessous de l'autre sur une chape basculante dont le fil de coupe se déplace selon un arc de basculement dont le centre est le centre d'une articulation autour duquel bascule la chape, le premier élément de coupe présentant une course de pénétration légèrement inférieur à l'épaisseur de la paroi du tube enroulé soumis au mouvement de rotation et le second élément de coupetraversant entièrement ladite paroi du tube enroulé.The present invention aims to remedy these drawbacks. The invention, as characterized in the claims, solves the problem of creating a cutting device for machines for continuously forming rolled articles such as rolled tubes subjected to a rotational movement and produced from strips of fibrous, cellulosic, metallic and other materials provided with two cutting elements, arranged practically one below the other on a tilting yoke whose cutting wire moves according to a tilting arc whose center is the center of an articulation around which the yoke rocks, the first cutting element having a penetration stroke slightly less than the thickness of the wall of the coiled tube subjected to the movement of rotation and the second cutting element crossing entirely said wall of the coiled tube.

Les avantages obtenus grâce à cette invention consistent essentiellement à conserver les avantages d'un dispositif de coupe dont le couteau garde un fil de coupe parfait même après plusieures coupes tout en permettant de réduire l'encombrement du dispositif de coupe en plaçant les deux éléments de coupe pratiquement l'un au dessus de l'autre.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 have been made. by reducing the size of the cutting device by placing the two cutting elements almost one above the other.

L'invention est exposée ci-après plus en détail à l'aide de dessins représentant seulement un mode d'exécution.The invention is set out below in more detail with the aid of drawings representing only one embodiment.

  • La figure 1 représente en vue en élévation le dispositif de coupe conforme à l'invention.Figure 1 shows in elevational view the cutting device according to the invention.
  • La figure 2 représente une vue en coupe de la ligne de coupe II-II de la figure 1.FIG. 2 represents a sectional view of the section line II-II of FIG. 1.
  • La figure 3 représente une vue en coupe de la ligne de coupe III-III de la figure 1.FIG. 3 represents a sectional view of the section line III-III of FIG. 1.

On se réfère aux figures 1 et 2.We refer to Figures 1 and 2.

Le bâti 1 d'une machine de formage en continu d'articles enroulés, notamment de tubes enroulés réalisés à partir de bandes en matériaux fibreux, cellulosiques, métalliques, plastiques et autres comporte une glissière 2 parallèle au mandrin en acier 3 servant de guide au tube enroulé 4, la machine de formage n'étant pas représentée.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.

Selon un premier mode de réalisation, le mandrin en acier 3 est soumis à une rotation conforme à la vitesse de synchronisation du tube enroulé 4.According to a first embodiment, the steel mandrel 3 is subjected to a rotation in accordance with the synchronization speed of the coiled tube 4.

Selon un second mode de réalisation, le mandrin en acier 3 est fixe et le tube enroulé 4 est soumis à un mouvement de rotation par l'intermédiaire de contre-rouleaux 5 et 6.According to a second embodiment, 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.

Sur cette glissière 2 coulisse un dispositif de coupe 7 conforme à l'invention. Ce dernier comporte une embase 8 dont la face inférieure 9 présente une rainure 10 dont une des parois 11 a la forme d'une queue d'aronde et dont l'autre paroi 12 est verticale. La glissière 2 comporte un bossage 13 en forme de queue d'aronde. On dispose entre l'un des côtés 14 du bossage 13 de la glissière 2 et la paroi verticale 12 de la rainure 10 de l'embase 8 une cale de réglage 15. Sur le dessus 16 de l'embase 8 est fixé par des éléments de fixation 17, 18 un plateau 19 dont la position transversale peut être modifiée par rapport à l'embase 8 par des éléments de réglage 20, 21. Par ailleurs, les éléments de fixation 17, 18 servent également en tant que moyens de blocage pour le positionnement du dispositif de coupe 7 par rapport à la glissière 2 du bâti 1. Ce plateau 19 est coiffé par une fourche 22 constituée de deux flancs 23, 24 reliés par des traverses 25, 26. La liaison entre le plateau 19 et la fourche 22 est assurée par des éléments de fixation 27, 28 vissés dans les traverses 25, 26. Les trous 29, 30 réalisés dans le plateau 19 ont un diamètre supérieur à celui des éléments de fixation 27, 28, ce qui permet de modifier la position du dispositif de coupe 7 par rapport au tube enroulé 4 en le rapprochant ou en l'éloignant et ceci par l'intermédiaire d'un moyen de réglage 31.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. We have between one of the sides 14 of the boss 13 of the slide 2 and the vertical wall 12 of the groove 10 of the base 8 an adjustment shim 15. On the top 16 of the base 8 is fixed by fastening elements 17 , 18 a plate 19, the transverse position of which can be modified relative to the base 8 by adjustment elements 20, 21. Furthermore, the fixing elements 17, 18 also serve as blocking means for positioning 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 ensured 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 section 7 with respect to the rolled-up tube 4 by moving it towards or away from it and this by means of an adjustment means 31.

L'une des extrémités 32 de la fourche 22 est traversée par un axe d'articulation 33 servant de liaison entre ladite extrémité 32 de la fourche 22 et l'extrémité 34 d'un vérin 35. L'extrémité 36 du piston 37 de ce vérin 35 est reliée par un axe d'articulation 38 à l'extrémité 39 d'une chape 40. Celle-ci peut pivoter autour d'une articulation 41 située à l'autre extrémité de la chape 40 est solidaire de l'autre extrémité 42 de la fourche 22.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 is integral with the other end 42 of the fork 22.

A cet effet, la chape 40 comporte un moyeu 43 disposé entre les deux ailes 44, 45 de ladite chape 40. Dans ce moyeu 43 est réalisé un alésage 46 débouchant de part et d'autre à un logement 47, 48 dans lequel est engagé un roulement à billes 49, 50. Entre les roulements à billes 49, 50 est interposée une entretoise 51. Les roulements à billes 49, 50 et l'entretoise 51 sont enfilés sur un axe 52 dont les deux extrémités 53, 54 présentent une portée 55, 56 engagée dans un alésage 57, 58 pratiqué dans les flancs 23, 24 de la fourche 22. Cet axe 52 étant maintenu par des éléments de fixation 59, 60, comporte deux filetages 61, 62 réalisés dans lesdites extrémités 53, 54. Sur ces filetages 61, 62 se déplace un écrou de réglage 63, 64 permettant de régler la position de la chape 40 par rapport à la fourche 22 et, par conséquent, par rapport au plan médian 65 du dispositif de coupe 7.To this end, the yoke 40 has a hub 43 disposed between the two wings 44, 45 of said yoke 40. In 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. 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.

La chape 40 sert de support à un premier élément de coupe 66 dont le diamètre est tel qu'après les différents réglages la course de pénétration 67 est légèrement inférieure à l'épaisseur 68 de la paroi 69 du tube enroulé 4. De ce fait, le fil de coupe 70 ne rentre jamais en contact avec le mandrin en acier 4.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.

La chape 40 sert également de support à un second élément de coupe 71 qui, dans une seconde phase de coupe, traverse entièrement la paroi 69 du tube enroulé 4 en prêtant attention au fait que le fil de coupe 72 de ce second élément de coupe 71 effleure le mandrin en acier 3 pour être certain que la coupe du tube enroulé 4 soit réelle et totale.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 wound tube 4, paying attention to the fact that the cutting wire 72 of this second cutting element 71 grazes the steel mandrel 3 to be certain that the cut of the coiled tube 4 is real and complete.

Le fonctionnement du dispositif de coupe est le suivant :The operation of the cutting device is as follows:

. Par l'intermédiaire du moyen de réglage 31 on rapproche du tube enroulé 4 la fourche 22, et par voie de conséquence, la chape 40 et le premier élément de coupe 66, de sorte que le fil de coupe 70 se rapproche du tube enroulé 4. Puis, on actionne le vérin 35 de sorte que la chape 40 pivote autour de l'articulation 41 et que, dans un premier temps, le premier élément de coupe 66 pénètre dans la paroi 69 du tube enroulé 4. Cependant, le rayon 73 de l'arc de basculement 74 qui décrit le fil de coupe 70 ayant pour centre le centre 75 de l'articulation 41 est inférieur à la distance 77 entre ledit centre 75 et le diamètre intérieur 78 du tube enroulé 4.. By means of the adjustment means 31 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 Then, 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. However, 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.

Puis, le second élément de coupe 71 décrivant un arc de basculement 79 pénètre dans le trait de coupe réalisé par le premier élément de coupe 66 et termine la coupe du tube enroulé 4.Then, 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.

A cet effet, il est impératif que le fil de coupe 72 du second élément de coupe 71 soit strictement situé dans le même plan que le fil de coupe 70 du premier élément de coupe 66, les moyens de réglage 80 de la position d'un élément de coupe par rapport à l'autre seront décrits ci-après.For this purpose, it is imperative that the cutting wire 72 of the second cutting element 71 is strictly situated in the same plane as the cutting wire 70 of the first cutting element 66, the means 80 for adjusting the position of a cutting element relative to each other will be described below.

Lorsque le mandrin d'acier 3 est entraîné en rotation selon un premier mode de réalisation, le premier élément de coupe 66 est fixe en rotation et le second élément de coupe 71 tourne.When the steel mandrel 3 is rotated according to a first embodiment, the first cutting element 66 is fixed in rotation and the second cutting element 71 rotates.

Selon un second mode de réalisation, les deux éléments de coupe 66, 71 sont soumis à un mouvement de rotation.According to a second embodiment, the two cutting elements 66, 71 are subjected to a rotational movement.

Lorsque le mandrin en acier 3 est fixe en rotation et le tube enroulé 4 tourne, les deux éléments de coupe 66, 71 sont fixes.When the steel mandrel 3 is fixed in rotation and the coiled tube 4 rotates, the two cutting elements 66, 71 are fixed.

Selon un autre mode de réalisation, soit l'un, soit l'autre, soit les deux éléments de coupe 66, 71 comportent une rotation partielle provoquée par une roue à rochet coopérant avec un cliquet solidaire d'un piston d'un vérin.According to another embodiment, 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.

On se réfère à la figure 3 représentant les moyens de réglage 80 permettant de disposer le fil de coupe 70 du premier élément de coupe 66 dans le même plan que le fil de coupe 72 du second élément de coupe 71. A cet effet, on préconise que le premier élément de coupe 66 est positionné de manière fixe par rapport aux faces internes 81, 82 des ailes 44, 45 de la chape 40 et que l'on règle la position du second élément de coupe 71.Reference is made to 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. For this purpose, it is recommended that 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.

Selon un autre mode de réalisation, on positionne le premier élément de coupe 66 par rapport au second 71.According to another embodiment, the first cutting element 66 is positioned relative to the second 71.

Selon un autre mode de réalisation, on prévoit le réglage de la position des deux éléments de coupe 66, 71 par rapport au plan médian 65.According to another embodiment, provision is made for adjusting the position of the two cutting elements 66, 71 relative to the median plane 65.

A l'emplacement du premier élément de coupe 66, la chape 40 comporte un axe 83 maintenu par des éléments de fixation 84. Sur cet axe 83 est enfilé un roulement à billes 85 maintenu latéralement par des entretoises 86, 87 interposées entre ledit roulement à billes 85 et les faces internes 81, 82 des ailes 44, 45 de la chape 40, ces entretoises 86, 87 étant enfilées sur l'axe 83. Ce roulement à billes 85 est logé dans un alésage 88 pratiqué dans un moyeu 89 présentant un bossage 90 servant de noyau à l'élément de coupe 66. Ce dernier est maintenu en place par une bride 91 rendue solidaire du moyeu 89 par des éléments de fixation 92. On prévoit une contrebride 93 pourvue d'éléments de fixation 94 pour maintenir latéralement le roulement à billes 85 dans l'alésage 88 du moyeu 89.At the location of the first cutting element 66, 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 laterally hold the ball bearing 85 in the bore 88 of the hub 89.

A l'emplacement du second élément de coupe 71, la chape 40 comporte un second axe 95 parallèle à l'axe 83 et maintenu par des éléments de fixation 96, 97. Sur cet axe 95 est enfilé un roulement à billes 98 logé dans un alésage 99 réalisé dans un moyeu 100 présentant un bossage 101 sur lequel est enfilé le second élément de coupe 71 maintenu par une bride 102 rendue solidaire du moyeu 100 par des éléments de fixation 103. Une contrebride 104 assure le maintien latéral du roulement à billes 98 dans l'alésage 99. L'axe 95 comporte à ses deux extrémités 105, 106 un filetage 107, 108 sur lequel se déplace une molette de règlage 109, 110. Ces molettes de réglage 109, 110 comportent un bossage 111, 112 coopérant avec la cage interne du roulement à billes 98. Par l'intermédiaire de ces molettes de réglage 109, 110 on peut positionner le second élément de coupe 71 par rapport au premier élément de coupe 66 qui se trouve normalement, dans le plan médian 65 du dispositif de coupe 7.At the location of the second cutting element 71, the yoke 40 has a second axis 95 parallel to the axis 83 and held by fastening elements 96, 97. On this axis 95 is threaded 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 device cutting 7.

Claims (10)

1. Dispositif de coupe pour machines de formage en continu d'articles enroulés tels que tubes enroulés soumis à un mouvement de rotation et réalisés à partir de bandes en matériaux fibreux, cellulosiques, métalliques et autres caractérisé en ce qu'il comporte deux éléments de coupe (66, 67) disposés pratiquement l'un au dessus de l'autre sur une chape basculante (40), dont le fil de coupe (70, 72) se déplace selon un arc de basculement (74, 79) dont le centre est le centre (75) d'une articulation (41) autour duquel bascule la chape (40), le premier élément de coupe (66) présentant une course de pénétration (67) légèrement inférieur à l'épaisseur (68) de la paroi (69) du tube enroulé (4) soumis au mouvement de rotation et le second élément de coupe (67) traversant entièrement ladite paroi (69) du tube enroulé (4).1. 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, characterized in that it comprises two elements section (66, 67) arranged practically one above the other on a tilting yoke (40), the cutting wire (70, 72) of which moves in a tilting arc (74, 79) the center of which is the center (75) of a joint (41) around which the yoke (40) rocks, the first cutting element (66) having a penetration stroke (67) slightly less than the thickness (68) of the wall (69) of the coiled tube (4) subjected to the rotational movement and the second cutting element (67) passing entirely through said wall (69) of the coiled tube (4). 2. Dispositif de coupe selon la revendication 1,caractériaé en ce que l'articulation (41) est située à l'une des extrémités (42) d'une fourche (22) dont l'autre extrémité (32) est reliée par un axe d'articulation (33) à l'extrémité (34) d'un vérin (35) dont l'extrémité (36) du piston (37) est reliéepar un axe d'articulation (38) à l'autre extrémité (39) de la chape (40).2. Cutting device according to claim 1, characterized in that the articulation (41) is located at one of the ends (42) of a fork (22) whose other end (32) is connected by a hinge pin (33) at the end (34) of a jack (35) whose end (36) of the piston (37) is connected by a hinge pin (38) at the other end (39 ) of the yoke (40). 3. Dispositif de coupe selon la revendication 1,carcatérisé en ce que le fil de coupe (70) du premier élément de coupe (66) comporte un arc de basculement (74) dont le rayon (73), ayant pour centre le centre (75) de l'articulation (41), est inférieur à la distance (77) entre ledit centre (75) et le diamètre intérieur (78) du tube enroulé (4).3. Cutting device according to claim 1, carcatized in that the cutting wire (70) of the first cutting element (66) comprises a tilting arc (74) whose radius (73), having its center in the center ( 75) of the joint (41), is less than the distance (77) between said center (75) and the internal diameter (78) of the wound tube (4). 4. Dispositif de coupe selon la revendication 1, caractérisé en ce qu'il comporte une embase (8) pourvue d'une rainure (10) coulissant le long d'une glissière (2) solidaire du bâti (1) de la machine de formage, cette embase présentant des moyens de blocage (17, 18) permettant de positionner le dispositif de coupe (7) par rapport à la glissière (2).4. Cutting device according to claim 1, characterized in that it comprises a base (8) provided with a groove (10) sliding along a slide (2) integral with the frame (1) of the machine forming, this base having blocking means (17, 18) making it possible to position the cutting device (7) relative to the slide (2). 5. Dispositif de coupe selon la revendication 1, caractérisé en ce qu'il comporte un moyen de réglage (31) pour positionner le dispositif de coupe (1) par rapport au tube enroulé (4).5. Cutting device according to claim 1, characterized in that it comprises an adjustment means (31) for positioning the cutting device (1) relative to the wound tube (4). 6. Dispositif de coupe selon la revendication 1, caractérisé en ce que l'articulation (41) comporte pour le positionnement de la chape (40) par rapport à la fourche (22) des moyens de réglage constitués par des écrous de réglage (63, 64) se déplaçant sur des filetages (61, 62) réalisés aux extrémités (53, 54) d'un axe (52) interposé entre les flancs (23, 24) de la fourche (22) à l'emplacement de l'articulation (41), et provoquant le déplacement d'un moyeu (43) disposé entre les ailes (44, 45) de la chape (40) sur l'axe (52).6. Cutting device according to claim 1, characterized in that the articulation (41) comprises for positioning the yoke (40) relative to the fork (22) adjustment means constituted by adjustment nuts (63 , 64) moving on threads (61, 62) produced at the ends (53, 54) of an axis (52) interposed between the sides (23, 24) of the fork (22) at the location of the articulation (41), and causing the displacement of a hub (43) disposed between the wings (44, 45) of the yoke (40) on the axis (52). 7. Dispositif de coupe selon la revendication 1, caractérisé en ce que les éléments de coupe (66, 71) pourvus des moyens de réglage (107 à 110) des éléments de coupe (66, 71) par rapport au plan médian (65) constitués par des molettes de réglage (109, 110), se déplaçant sur des filetages (107, 108) d'un axe (95) interposé entre les ailes (44, 45) de la chape (40) et provoquant le déplacement des moyeux (89, 100) des éléments de coupe (66, 71) comportent un fil de coupe (70, 72) situé dans un même plan l'un (70) par rapport à l'autre (72).7. Cutting device according to claim 1, characterized in that the cutting elements (66, 71) provided with adjustment means (107 to 110) of the cutting elements (66, 71) relative to the median plane (65) constituted by adjustment knobs (109, 110), moving on threads (107, 108) of an axis (95) interposed between the wings (44, 45) of the yoke (40) and causing the displacement of the hubs (89, 100) of the cutting elements (66, 71) comprise a cutting wire (70, 72) located in the same plane one (70) relative to the other (72). 8. Dispositif de coupe selon la revendication 7, caractérisé en ce que le premier élément de coupe (66) et/ou le second élément de coupe (71h comportent les moyens de réglage (107 à 110).8. Cutting device according to claim 7, characterized in that the first cutting element (66) and / or the second cutting element (71h comprise the adjusting means (107 to 110). 9. Dispositif de coupe selon la revendication 1, caractérisé en ce qu'il comporte un premier élément de coupe (66) fixe ou mobile en rotation.9. Cutting device according to claim 1, characterized in that it comprises a first cutting element (66) fixed or movable in rotation. 10. Dispositif de coupe selon la revendication 1, caractérisé en ce qu'il comporte des éléments de coupe (66, 71) fixes ou mobiles en rotation.10. Cutting device according to claim 1, characterized in that it comprises cutting elements (66, 71) fixed or mobile in rotation.
EP86440064A 1985-07-22 1986-07-22 Cutting apparatus for machines making wound products Expired EP0210118B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86440064T ATE42493T1 (en) 1985-07-22 1986-07-22 CUTTING DEVICE FOR A MACHINE FOR THE MANUFACTURE OF COILED PRODUCTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8511287 1985-07-22
FR8511287A FR2584970B1 (en) 1985-07-22 1985-07-22 CUTTING DEVICE FOR MACHINES FOR FORMING WOUND ARTICLES

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EP0210118A1 true EP0210118A1 (en) 1987-01-28
EP0210118B1 EP0210118B1 (en) 1989-04-26

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EP86440064A Expired EP0210118B1 (en) 1985-07-22 1986-07-22 Cutting apparatus for machines making wound products

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

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CN110508864A (en) * 2019-09-11 2019-11-29 陈磊 A kind of drainage pipeline cutting equipment for being relatively large in diameter

Also Published As

Publication number Publication date
FR2584970A1 (en) 1987-01-23
FR2584970B1 (en) 1989-08-18
EP0210118B1 (en) 1989-04-26
ATE42493T1 (en) 1989-05-15
DE3662986D1 (en) 1989-06-01

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