EP2248725A1 - Apparatus and method for marking and labelling - Google Patents

Apparatus and method for marking and labelling Download PDF

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Publication number
EP2248725A1
EP2248725A1 EP10162019A EP10162019A EP2248725A1 EP 2248725 A1 EP2248725 A1 EP 2248725A1 EP 10162019 A EP10162019 A EP 10162019A EP 10162019 A EP10162019 A EP 10162019A EP 2248725 A1 EP2248725 A1 EP 2248725A1
Authority
EP
European Patent Office
Prior art keywords
arm
axis
marking
arms
support
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.)
Granted
Application number
EP10162019A
Other languages
German (de)
French (fr)
Other versions
EP2248725B1 (en
Inventor
Florent Demange
Marco Paita
David Mandon
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of EP2248725A1 publication Critical patent/EP2248725A1/en
Application granted granted Critical
Publication of EP2248725B1 publication Critical patent/EP2248725B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
    • B41F17/18—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on curved surfaces of articles of varying cross-section, e.g. bottles, lamp glasses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2219/00—Printing presses using a heated printing foil
    • B41P2219/40—Material or products to be decorated or printed
    • B41P2219/43—Three-dimensional articles
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1039—Surface deformation only of sandwich or lamina [e.g., embossed panels]
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1705—Lamina transferred to base from adhered flexible web or sheet type carrier
    • Y10T156/1707—Discrete spaced laminae on adhered carrier
    • Y10T156/171—Means serially presenting discrete base articles or separate portions of a single article
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • Y10T156/1734—Means bringing articles into association with web
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1744—Means bringing discrete articles into assembled relationship
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1788—Work traversing type and/or means applying work to wall or static structure
    • Y10T156/1795—Implement carried web supply

Definitions

  • the present invention relates to a marking or labeling machine which comprises a member such as a punch for pressing a tape against the peripheral surface of a workpiece to be marked or labeled.
  • the invention also relates to a marking or labeling process in which parts are successively brought facing a marking member, such as a punch, or facing a label-laying member.
  • the invention intends to remedy more particularly by proposing a new marking or labeling machine whose productivity is substantially improved compared with those of the state of the art.
  • the invention relates to a marking or labeling machine comprising at least one marking or labeling member, as well as means for feeding each piece to be marked or labeled opposite this member, these supply means comprising at least two arms rotating about a first common geometric axis and each carrying at least one support member of a workpiece to be marked or labeled.
  • the feed means further comprise independent means for driving each of the arms in rotation around the first common geometric axis, independently of the other arm.
  • the arms can have movements in masked time relative to each other.
  • one of the arms can move a part to be marked or already marked or a part to be labeled or already labeled, while the other arm is in a position where one intervenes on another piece, such as a loading station, a marking station, a checkpoint or an unloading station.
  • This is particularly advantageous because the periods of immobilization of an arm in one of the aforementioned stations are variable depending on the nature of the operations to be performed.
  • the independence of the means for driving the arms in rotation about the first geometric axis thus allows each arm to move, independently of the other or the other arms, with a self-speed between the different positions, without hindering the interventions on the parts supported by the other arm or arms.
  • a machine according to the invention comprising two independent arms can treat parts to be marked or labeled with a speed of execution comparable to a machine equipped with a tray on which are mounted six mandrels, which is advantageous both in terms of price of comes back from the machine and inertia of the displaced masses, so the life of this machine.
  • each arm moves the part to be marked or already marked independently of the other arms, while allowing its drive in rotation around the first and second geometric axes, which induces a time saving during marking.
  • the machine 2 represented in Figures 1 to 7 comprises a fixed frame 4 and a punch 6 of the heating type and which is capable of a vertical movement represented by the double arrow F 1 to figures 1 and 2 .
  • This heating punch 6 is provided for pressing a tape 8 on the outer surface of parts to be marked, such as bottles of perfume or cosmetics, these bottles being of generally cylindrical shape, most often circular section. For the sake of clarity, these parts are not shown in the figures, except for a part of the figure 4 .
  • the ribbon 8 extends between a supply reel and a waste collection reel, known per se and which are not shown.
  • the ribbon 8 is guided by return rollers 16A and 16B.
  • the machine 2 is equipped with two arms 20 and 22 rotatable about the same geometric axis X 2 defined by the frame 4 and perpendicular to the direction of movement of the punch 6 , that is to say horizontal in the example of the figures.
  • the terms "front” and “back” are used in view of the machine 2 seen as shown in FIG. figure 1 and whose front is oriented towards the observer of this figure.
  • the front of the machine is visible at the figure 2 and on the right of the figure 3
  • the back of the machine is visible at the figure 8 and on the left of the figure 3 .
  • the chassis 4 comprises a front plate 4A, a longitudinal beam 4B, a back plate 4C and a frame 4D which are fixed.
  • a rotary manifold 10 is mounted on the plate 4A and is supplied with pressurized air to be distributed between different pneumatic members of the machine 2.
  • This manifold comprises a fixed core 101 provided with a central orifice and several air circulation ducts. under pressure towards grooves formed at the periphery of this core.
  • a first ring 102 is mounted around the core 101, with possibility of rotation about the axis X 2 .
  • a hollow shaft 103 is mounted in the extension of the core 101, along the axis X 2 and comprises an end 1032 which partially surrounds the core 101, with possibility of rotation about the axis X 2 .
  • a second ring 104 is mounted around the shaft 103 with the possibility of rotation about the axis X 2 .
  • a plate 105 connects the two rings 102 and 104 being secured to each of them by means of screws, so that these rings can rotate together about the axis X 2 and elements 101 and 103.
  • Bearing 120 is interposed between the ring 104 and the shaft 103.
  • a sleeve 106 is integral in rotation with the ring 104.
  • the arm 20 comprises a front plate 202 and a rear plate 204 connected by a plate 206 pierced with an opening 208.
  • the arm 202 is mounted on the sleeve 106 itself supported by the bearing 120 relative to the shaft 103.
  • the arm 20 carries a crew 210 for supporting a part to be marked and which comprises a housing 212, a hollow mandrel 213 and two bearings 214 and 215 for supporting the hollow shaft 213 relative to the housing 212, with the possibility of rotation about an axis X 20 defined by the housing 212, parallel to the axis X 2 and distinct from that axis.
  • the hollow mandrel 213 is bi-partite and comprises a front portion 2132 and a rear portion 2134.
  • the front portion 2132 is intended to be engaged inside a part to be marked which is represented by its silhouette in dashed line, only to the figure 4 , with the reference 400.
  • the arm 200 is equipped with a counterweight 203 which makes it possible to balance the effect of the arm 20 on the shaft 103.
  • the arm 22 has a structure comparable to that of the arm 20 and comprises a front plate 222, a rear plate 224, a plate 226 provided with an opening not visible in the figures but comparable to the opening 208.
  • a crew 230 is reported on the arm 22 and comprises a housing 232, a bi-partite mandrel 233 and bearings comparable to the bearings 214 and 215.
  • the arm 22 is mounted on a third ring 108 integral in rotation with the end 1034 of the opposite shaft 103 at the core 101.
  • An unrepresented counterweight equips the arm 22.
  • a brushless electric motor 30 is mounted on a plate 4E belonging to the frame 4 and its output shaft is engaged with a toothed belt 40 which is wound on a ring gear 50 keyed on a hollow shaft 60 on which is immobilized a support 209.
  • the rear plate 204 of the arm 20 is fixed on the support 209 by means of screws, one of which is visible at figure 1 .
  • the power supply of the motor 30 makes it possible to rotate the arm 20 about the axis X 2 .
  • a second brushless motor 32 is mounted on a plate 4F belonging to the frame 4 and its output shaft drives a toothed belt 42 which surrounds a ring 52 secured by means of screws 54 with a support 219.
  • the rear plate 224 of the arm 22 is mounted, by means of screws of which only one is visible at the figure 1 , on the support 219.
  • the power supply of the motor 32 makes it possible to turn the arm 22 around the axis X 2 .
  • the kinematic chains formed of these motors, belts, rings and aforesaid supports, as well as the shaft 60 for the arm 20 constitute independent means for driving each of the arms 20 and 22 in rotation about the axis X 2 , independently of the other arm.
  • a third brushless motor 34 is supported by the frame 4 and its output shaft drives a belt 44 engaged with a pulley 74 keyed on the end of a shaft 84 aligned on the axis X 2 and arranged radially to the inside of the shaft 60.
  • the end of the shaft 84 opposite the pulley 74 carries a second pulley 94 on which is wound a belt 114 which passes through the opening 208 and is also wound on a pulley 134 fixed mounting around the rear portion 2134 of the hollow mandrel 213.
  • a fourth brushless motor 36 is supported by the frame 4 and drives a belt 46 which drives a pulley 76 mounted at a first end of a shaft 86 aligned on the axis X 2 and arranged radially inside. of the shaft 84.
  • a second pulley 96 is attached to the opposite end of the shaft 86 and drives a belt 116 visible by pulling away from the shaft. figure 2 and which circulates around a pulley 136 integral in rotation with the hollow mandrel 233, which makes it possible to rotate this mandrel about an axis X 22 , parallel to the axes X 2 and X 20 and distinct therefrom .
  • the shaft 86 extends along the axis X 2 to the inside of the end 1034 of the shaft 103 where a ring 88 is keyed on the shaft 86.
  • a bearing 122 ensures the centering of the shafts 86 and 103 between them with the possibility of relative rotation.
  • the rotational drive means of the mandrels 213 and 223, respectively about the axes X 20 and X 22 are independent of each other insofar as they allow one or other of the mandrels 213 and 233 to be driven. in rotation around the axes X 20 and X 22 where both, depending on the supply of the motor 34, the motor 36 or both engines.
  • the motors 30 to 36 are supported by the frame 4, they are not displaced during the rotational movements of the arms 20 and 22, so that the inertia of these arms is relatively low, which facilitates movements at high speed. high and limit the wear of support parts such as bearings.
  • tensioners may be arranged in the path of the belts, especially in the path of the belts 114 and 116.
  • the ribbon 8 is mounted on one of the arms, for example the arm 20 is this one is moved up to the vicinity of the punch 6, in the direction of the rotation arrow R 20 in the first representation of the figure 6 .
  • the arm 22 is stationary, in a position where a previously loaded part on the mandrel 233 is discharged from this arm, within an unloading station.
  • the arm 20 follows the upward movement of the punch 6 represented by the arrow F 1 in the second representation of the figure 6 .
  • the punch 6 is motorized, which allows it to adapt its position in height to that of the parts to be marked to ensure good contact.
  • the arm 22 can be moved to a load position of a workpiece 400 on its shaft 233, at a speed which may be equal to or different from the rotational speed of movement of the arm 20.
  • this piece is rotated around the axis X 20 , which represents the arrow R 213 in the second representation of the figure 6 .
  • the arm 22 has reached a loading position where a part 400 can be engaged on the hollow mandrel 233 while the arm 20 continues to move in rotation about the axis X 2 , which represents the arrow R 20 , in order to disengage from the punch 6 which moves radially in the direction of the axis X 2 as represented by the arrow F ' 1 .
  • the coin being marked is rotated about the X axis 20 , which represents the arrow R 213 .
  • the arm 22 is in the process of moving to bring the piece it carries in marking configuration, which represents the arrow R 22 , while the arm 20 is being moved to bring the piece that it supports towards the unloading station, which represents the arrow R 20 .
  • the speeds of movement of the arms 20 and 22 during this step may be identical or different, which allow the independent means of driving these arms in rotation about the axis X 2 .
  • the arms 20 and 22 also have rotational movements R 20 and R 22 which are independent of one another.
  • the arm 20 is held stationary during the marking of the part 400 that it supports.
  • the arm 20 is brought to the upper position, in the vicinity of the punch 6, which represents the arrow R 20 .
  • this punch is lowered, in the direction of the arrow F 1 , while the arm is held stationary, then the punch 6 is moved horizontally, in the direction of the arrow F 2 to the second representation of the figure 7 , rolling on the part supported by the hollow mandrel 213 which then rotates about the axis X 20 , as represented by the arrow R 213 .
  • the punch 6 is separated from the part, which represents the arrow F ' 1 in the third representation of the figure 7 .
  • the arms 20 and 22 rotate about the axis X 2 , which represent the arrows R 20 and R 22 , to bring the arm 22 in the position of the arm 20 at the first representation, and vice versa.
  • the arm 20 is double, in that it comprises two parts 20A and 20B which respectively extend on either side of the axis X 2 and which each carry a hollow mandrel 213A, 213B serving as support member for receiving and moving the parts to be marked.
  • the arm 22 comprises two parts 22A and 22B which extend on either side of the axis X 2 and which each carry a hollow mandrel 233A and 233B forming a support for receiving and moving parts to score.
  • the arms 20 and 22 are in this case devoid of counterweight.
  • the arm portions 20A and 20B, on the one hand, 22A and 22B, on the other hand, are integral with each other and rotated in a manner comparable to that indicated for the first embodiment, respectively by means of brushless motors 30 and 32 associated with belts 40 and the like.
  • two brushless motors 34 and 36 can rotate the hollow shafts 213A, 213B, 233A and 233B respectively about their longitudinal axes X 20A , X 20B , X 22A , X 22B .
  • the shaft 84 rotated by the motor 34 is equipped with a double pulley 94 which drives two belts 114A and 114B making it possible to simultaneously rotate the hollow mandrels 213A and 213B about the X axes 20A and X 20B which are parallel to the X axis 2 .
  • a similar construction is adopted for the arm 22.
  • figure 12 is comparable to that of the figure 7 , the double arms allowing simultaneous manipulation of four pieces.
  • the motors 34 and 36 are replaced by brushless motors 38 and 39 respectively mounted on the arms 20 and 22, which allows their respective output shafts 382 and the like to directly attack the hollow mandrels 213 and 233.
  • the motors 38 and 39 are fixed on the housings 212 and 232 of the crews 210 and 230 respectively supported by arms 20 and 22.
  • brushless motors 30 and 32 similar to those of the first embodiment are used, together with toothed belts, to rotate the shafts 20 and 22 about the axis X 2 .
  • the motors 38 and 39 are each powered by means of an electric cable, the electrical cable 138 of the motor 38 being visible at the figure 14 , while the cable feeding the motor 39 is not shown, for clarity of the drawing.
  • This electric cable passes through the central volume V 60 of the hollow shaft 60 used for driving the arm 20 in rotation around the axis X 2 .
  • This cable 138 extends between a rotating collector 150, forming a power source, and the motor 38, this collector being itself connected to the mains and to a control unit not shown.
  • the controllers 148 and 149 of the motors 38 and 39 are mounted on a plate 160 rotating about the axis X 2 . These drives 148 and 149 are regularly distributed on the plate 160.
  • the cable 138 extends in practice between the rotary manifold 150 and a drive 148 and the drive 148 to the motor 38. To prevent the cable 138 is bent during the use of the machine 2 over a relatively large period, or is torn from one of the inverters 148 or the motor 138, the plate 160 is rotated about the axis X 2 by means of a brushless motor 162 which attacks a hollow shaft 164 in the center of which also runs the cable 138.
  • the plate 160 is driven by the motor 162 at an angular speed corresponding to the average speed of movement of the arms 20 and 22 around the axis X 2 .
  • the plate 160 has found an angular position corresponding to its starting position relative to the arms 20 and 22.
  • the angular offset between the plate 160 and the motors 38 and 39 remains relatively low, to the point that it is not likely to induce damage to the cable 138 or the corresponding cable which supplies the motor 39.
  • the embodiment of the figures 15 and 16 differs from the previous one in that, instead of the motors 30 and 32, two torque motors 300 and 320 are used whose rotors 302 and 322 are centered on the axis X 2 .
  • These motors each comprise a stator 304 or 324 capable of inducing on the rotors 302 and 322 a driving torque in rotation at a speed compatible with the function of the arms 20 and 22 which are integral in rotation the rotor 302 and 322.
  • Two Racks 310 and 330 form bearings supporting at least one of the rotors, namely the rotor 302, it being specified that the rotor 322 is arranged radially around a portion of the rotor 302.
  • the motors 300 and 320 thus make it possible to drive the arms 20 and 22 independently of one another about the axis X 2, which is an axis of rotation common to the rotors 302 and 322.
  • Mandrels 213 and 233 mounted to the ends of the arms 20 and 22 are driven around two axes X 20 and X 22 parallel to the axis X 2 by motors 38 and 39 similar to those of the third embodiment.
  • a rotary manifold 10 makes it possible to supply air with pneumatic members such as positioning cylinders.
  • each arm 20 or 22 may be associated with a jack for pressing a part to be marked on the mandrel 213 or 233.
  • the hollow mandrels 213 and 233 may be supplied with air to "inflate" a workpiece 400 before its marking, in order to stretch its wall.
  • the invention makes it possible to position the various stations in which the parts to be marked are involved in positions whose angular spacing is not necessarily set at 60 °, as in the case of a turntable machine known from the state of the art.
  • the angular difference between the loading station and the area of application of the marking on the workpiece may be different from the angular difference between the marking zone and the unloading zone.
  • the invention allows charging an object on one of the arms 20 or 22 in all the angular positions around the axis X 2 , which makes it possible to adapt the loading station to the geometry of the parts to be marked. .
  • the invention also makes it possible to rotate a part to be marked about an axis X 20 or X 22 , even though the arm 20 or 22 which supports it is still rotating about the axis X 2 , which saves time at the beginning of a marking step because of the anticipation performed. Sudden accelerations of moving parts can be reduced by this anticipation.
  • the punch used for marking the parts may be a non-heating punch.
  • two or more marking members can be used since the arms can stop successively opposite each of these marking members regardless of the path of the other arms.
  • Arms each carrying two supports such as the shafts 213 and 233 can be used with the third and fourth embodiments, applying the technical teaching of the second embodiment.
  • the number of arms of the machine may alternatively be greater than two.
  • chains can be used.
  • the invention has been described above in the case where the marking takes place due to a rotational movement of a workpiece on its mandrel.
  • the invention may however be implemented in a machine in which the marking is made by direct striking, on a flat face of an object.
  • the invention can also be implemented in a machine for marking shaped parts, that is to say non-circular section pieces.
  • the invention may also be implemented for a screen printing machine, in which case it is necessary to move a part to be marked opposite an inked screen which forms a marking member, whose function is comparable to that of the punch 6 mentioned above. -above.
  • the invention is also applicable, in another embodiment, to a labeling machine, more specifically a label-laying machine, in which a width on which labels are arranged circulates to the vicinity of parts to be labeled. , while a support member, commonly called “saber” periodically presses the width against the outer surface of the parts to be labeled, in order to apply a label.
  • a support member commonly called “saber”
  • the parts to be labeled must be moved relative to the labeling member that is the sword and the invention can be implemented for this purpose.

Landscapes

  • Labeling Devices (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The machine (2) has a marking or labeling element e.g. punch (6), for marking or labeling pieces, and a delivery unit for delivering the pieces to be marked or labeled opposite to the element. The delivery unit has arms (20, 22) rotating about a common geometrical axis (X2) and carrying supporting bodies e.g. mandrels (213, 233), to support the pieces. The delivery unit comprises independent driving units for driving one of the arms to rotate around the axis independent of the other arm. The driving units have a brushless electric motor (30) mounted on a plate (4E) of a chassis (4). An independent claim is also included for a method for marking and labeling pieces.

Description

La présente a trait à une machine de marquage ou d'étiquetage qui comprend un organe tel qu'un poinçon destiné à presser un ruban contre la surface périphérique d'une pièce à marquer ou à étiqueter. L'invention a également trait à un procédé de marquage ou d'étiquetage dans lequel on amène successivement des pièces en regard d'un organe de marquage, tel qu'un poinçon, ou en regard d'un organe de pose d'étiquettes.The present invention relates to a marking or labeling machine which comprises a member such as a punch for pressing a tape against the peripheral surface of a workpiece to be marked or labeled. The invention also relates to a marking or labeling process in which parts are successively brought facing a marking member, such as a punch, or facing a label-laying member.

Dans le domaine du marquage à chaud, il est connu, par exemple de WO-A-2008/142225 , d'utiliser un poinçon pour plaquer un ruban de marquage contre la surface périphérique de pièces à marquer montées sur six mandrins portés par un plateau rotatif. Ces mandrins passent successivement dans une position de chargement, dans une position de marquage, dans une position de contrôle et dans une position de déchargement, ainsi que dans diverses positions intermédiaires. La vitesse de marquage des pièces dépend de la vitesse moyenne de rotation du plateau qui est, en pratique, limitée par les différentes opérations qui doivent avoir lieu sur les pièces à marquer ou déjà marquées, alors que le plateau est à l'arrêt.In the field of hot stamping, it is known, for example WO-2008/142225 , to use a punch to press a marking tape against the peripheral surface of pieces to be marked mounted on six mandrels carried by a turntable. These mandrels pass successively in a loading position, in a marking position, in a control position and in an unloading position, as well as in various intermediate positions. The marking speed of the parts depends on the average speed of rotation of the plate which is, in practice, limited by the various operations that must take place on the parts to mark or already marked, while the tray is stopped.

Il est également connu de GB-A-1 558 536 de déplacer des tasses entre différentes stations d'une machine d'impression au moyen de quatre organes intermédiaires articulés autour d'un axe central et raccordé chacun à l'axe d'un pignon planétaire. Les différents pignons planétaires interagissent l'un après l'autre avec une rampe d'une came qui tourne également autour de l'axe central. Les mouvements des différents organes intermédiaires sont liés, dans la mesure où une seule came est utilisée pour déplacer ces organes intermédiaires, cette came ne pouvant interagir avec l'un de ces organes intermédiaires que lorsqu'elle a déjà quitté ou lorsqu'elle est en train de quitter un autre organe intermédiaire. Les mouvements de deux pignons planétaires se recouvrent temporellement, mais ne peuvent pas avoir lieu en même temps, ce qui correspond au fait que l'unique came ne peut avoir qu'une position angulaire autour de l'axe central.It is also known to GB-A-1,558,536 moving cups between different stations of a printing machine by means of four intermediate members articulated around a central axis and each connected to the axis of a sun gear. The different planetary gears interact one after the other with a ramp of a cam that also rotates around the central axis. The movements of the various intermediate members are linked, insofar as a single cam is used to move these intermediate members, this cam being able to interact with one of these intermediate members only when it has already left or when it is leaving another intermediate organ. The movements of two planetary gears overlap temporally, but can not take place at the same time, which corresponds to the fact that the single cam can have only an angular position around the central axis.

Des problèmes analogues se posent avec d'autres machines de marquage, notamment les machines de marquage par sérigraphie, et avec les machines d'étiquetage.Similar problems arise with other marking machines, including screen printing machines, and with labeling machines.

C'est à ces inconvénients qu'entend plus particulièrement remédier l'invention en proposant une nouvelle machine de marquage ou d'étiquetage dont la productivité est sensiblement améliorée par rapport à celles de l'état de la technique.It is these drawbacks that the invention intends to remedy more particularly by proposing a new marking or labeling machine whose productivity is substantially improved compared with those of the state of the art.

A cet effet, l'invention concerne une machine de marquage ou d'étiquetage comprenant au moins un organe de marquage ou d'étiquetage, ainsi que des moyens d'amenée de chaque pièce à marquer ou à étiqueter en regard de cet organe, ces moyens d'amenée comprenant au moins deux bras tournants autour d'un premier axe géométrique commun et portant chacun au moins un organe de support d'une pièce à marquer ou à étiqueter. Selon l'invention, les moyens d'amenée comprennent, en outre, des moyens indépendants d'entraînement de chacun des bras en rotation autour du premier axe géométrique commun, indépendamment de l'autre bras.For this purpose, the invention relates to a marking or labeling machine comprising at least one marking or labeling member, as well as means for feeding each piece to be marked or labeled opposite this member, these supply means comprising at least two arms rotating about a first common geometric axis and each carrying at least one support member of a workpiece to be marked or labeled. According to the invention, the feed means further comprise independent means for driving each of the arms in rotation around the first common geometric axis, independently of the other arm.

Grâce à l'invention, les bras peuvent avoir des mouvements en temps masqué l'un par rapport à l'autre. En d'autres termes, l'un des bras peut déplacer une pièce à marquer ou déjà marquée ou une pièce à étiqueter ou déjà étiquetée, alors que l'autre bras est dans un poste où l'on intervient sur une autre pièce, telle qu'un poste de chargement, un poste de marquage, un poste de contrôle ou un poste de déchargement. Ceci est particulièrement avantageux car les durées d'immobilisation d'un bras dans l'un des postes précités sont variables en fonction de la nature des opérations à réaliser. L'indépendance des moyens d'entraînement des bras en rotation autour du premier axe géométrique permet donc que chaque bras se déplace, indépendamment de l'autre ou des autres bras, avec une vitesse propre entre les différents postes, sans gêner les interventions sur les pièces supportées par le ou les autres bras. Moyennant un pilotage approprié, il s'avère qu'une machine conforme à l'invention comprenant deux bras indépendants permet de traiter des pièces à marquer ou à étiqueter avec une vitesse d'exécution comparable à une machine équipée d'un plateau sur lequel sont montés six mandrins, ce qui est avantageux à la fois en termes de prix de revient de la machine et d'inertie des masses déplacées, donc de durée de vie de cette machine.Thanks to the invention, the arms can have movements in masked time relative to each other. In other words, one of the arms can move a part to be marked or already marked or a part to be labeled or already labeled, while the other arm is in a position where one intervenes on another piece, such as a loading station, a marking station, a checkpoint or an unloading station. This is particularly advantageous because the periods of immobilization of an arm in one of the aforementioned stations are variable depending on the nature of the operations to be performed. The independence of the means for driving the arms in rotation about the first geometric axis thus allows each arm to move, independently of the other or the other arms, with a self-speed between the different positions, without hindering the interventions on the parts supported by the other arm or arms. With appropriate control, it turns out that a machine according to the invention comprising two independent arms can treat parts to be marked or labeled with a speed of execution comparable to a machine equipped with a tray on which are mounted six mandrels, which is advantageous both in terms of price of comes back from the machine and inertia of the displaced masses, so the life of this machine.

Selon des aspects avantageux mais non obligatoires de l'invention, une telle machine peut incorporer une ou plusieurs des caractéristiques suivantes, prises dans toute combinaison techniquement admissible :

  • Les moyens indépendants d'entraînement des bras en rotation autour du premier axe géométrique comprennent au moins deux moteurs électriques, dédiés chacun à l'entraînement d'un bras en rotation autour de cet axe et qui sont supportés par un châssis fixe de la machine.
  • La machine comprend des moyens d'entraînement de chaque organe de support en rotation autour d'un deuxième axe géométrique, parallèle au premier axe géométrique.
  • Les moyens d'entraînement, en rotation autour d'un deuxième axe, d'un support porté par un premier bras sont indépendants des moyens d'entraînement, en rotation autour d'un deuxième axe, d'un autre support porté par un deuxième bras.
  • Les moyens d'entraînement, en rotation autour d'un deuxième axe géométrique, d'un organe support porté par un bras comprennent un arbre centré sur le premier axe géométrique et cinématiquement relié, d'une part, à un actionneur électrique et, d'autre part, à l'organe de support. Dans ce cas, la liaison entre l'actionneur électrique et l'arbre et/ou la liaison entre l'arbre et l'organe de support est avantageusement réalisée par un lien souple, tel qu'une courroie ou une chaîne.
  • Les moyens d'entraînement, en rotation autour d'un deuxième axe, d'un organe de support porté par un bras comprennent un moteur électrique monté sur ce bras. Dans ce cas, le moteur électrique monté sur le bras est avantageusement piloté par au moins un organe de commande monté sur un support tournant autour du premier axe géométrique, alors qu'un actionneur électrique est apte à entraîner ce support en rotation autour du premier axe géométrique, à une vitesse égale à la moyenne des vitesses de rotation des bras sur un tour.
  • L'un au moins des bras porte deux organes de support d'une pièce à marquer, de part et d'autre du premier axe géométrique.
According to advantageous but non-mandatory aspects of the invention, such a machine may incorporate one or more of the following features, taken in any technically permissible combination:
  • The independent means for driving the arms in rotation around the first geometric axis comprise at least two electric motors, each dedicated to driving an arm in rotation around this axis and which are supported by a fixed frame of the machine.
  • The machine comprises means for driving each support member in rotation about a second geometric axis, parallel to the first geometric axis.
  • The drive means, in rotation about a second axis, of a support carried by a first arm are independent of the drive means, in rotation about a second axis, of another support carried by a second arms.
  • The drive means, in rotation about a second geometric axis, of a support member carried by an arm comprises a shaft centered on the first geometric axis and kinematically connected, on the one hand, to an electric actuator and, on the other hand, to the support member. In this case, the connection between the electric actuator and the shaft and / or the connection between the shaft and the support member is advantageously performed by a flexible link, such as a belt or a chain.
  • The drive means, rotating about a second axis, a support member carried by an arm comprises an electric motor mounted on this arm. In this case, the electric motor mounted on the arm is advantageously controlled by at least one control member mounted on a support rotating about the first geometric axis, while an electric actuator is adapted to drive this support in rotation about the first axis. geometric, at a speed equal to the average speed of rotation of the arms on a lathe.
  • At least one of the arms carries two support members of a part to be marked, on either side of the first geometric axis.

L'invention concerne également un procédé de marquage ou d'étiquetage qui peut être mis en oeuvre avec une machine telle que décrite ci-dessus et, plus spécifiquement, un procédé dans lequel on amène successivement des pièces en regard d'au moins un organe de marquage ou d'étiquetage. Ce procédé est caractérisé en ce qu'il comprend des étapes consistant à :

  1. a) charger une pièce sur un organe de support porté par un bras appartenant à un ensemble de plusieurs bras tournant autour d'un premier axe géométrique
  2. b) faire tourner le bras sur lequel est chargée la pièce autour du premier axe, jusqu'à ce que la pièce soit en regard de l'organe de marquage ou d'étiquetage, indépendamment du mouvement du ou des autres bras de l'ensemble de bras ;
  3. c) faire tourner l'organe de support et la pièce par rapport au bras, autour d'un deuxième axe géométrique parallèle au premier axe ;
  4. d) marquer la pièce, au moyen de l'organe de marquage, ou déposer une étiquette sur la surface périphérique de la pièce à étiqueter, au moyen de l'organe d'étiquetage ;
  5. e) faire tourner le bras autour du premier axe jusqu'à ce que la pièce soit au niveau d'un poste de déchargement, indépendamment du mouvement du ou des autres bras de l'ensemble de bras ; et
  6. f) décharger la pièce de l'organe de support.
The invention also relates to a method of marking or labeling which can be implemented with a machine as described above and, more specifically, a method in which parts are brought successively facing at least one member marking or labeling. This method is characterized in that it comprises steps of:
  1. a) loading a part on a support member carried by an arm belonging to a set of several arms rotating about a first geometric axis
  2. b) rotate the arm on which the workpiece is loaded around the first axis, until the workpiece is facing the marking or labeling member, independently of the movement of the other arm (s) of the assembly of arms;
  3. c) rotating the support member and the workpiece relative to the arm about a second geometric axis parallel to the first axis;
  4. d) mark the part, by means of the marking member, or deposit a label on the peripheral surface of the part to be labeled, by means of the labeling member;
  5. e) rotating the arm about the first axis until the part is at an unloading station, regardless of the movement of the other arm (s) of the arm assembly; and
  6. f) unloading the piece from the support member.

Selon ce procédé, chaque bras déplace la pièce à marquer ou déjà marquée indépendamment des autres bras, tout en permettant son entraînement en rotation autour des premier et deuxième axes géométriques, ce qui induit un gain de temps lors du marquage.According to this method, each arm moves the part to be marked or already marked independently of the other arms, while allowing its drive in rotation around the first and second geometric axes, which induces a time saving during marking.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaitront plus clairement à la lumière de la description qui va suivre de quatre modes de réalisation d'une machine conforme à son principe et de son procédé de mise en oeuvre, donnée uniquement à titre d'exemple et faite en référence aux dessins dans lesquels :

  • la figure 1 et une vue en perspective d'une partie d'une machine de marquage conforme à l'invention ;
  • la figure 2 est une vue de face de la machine de la figure 1 avec arrachement partiel ;
  • la figure 3 est une coupe selon la ligne III-III à la figure 2 ;
  • la figure 4 est une vue à plus grande échelle du détail IV de la figure 3 ;
  • la figure 5 est une vue à plus grande échelle du détail V à la figure 3 ;
  • la figure 6 est une représentation schématique de principe, en vue de face, de la position des bras et du poinçon de la machine des figures 1 à 5 lors d'un procédé de marquage ;
  • la figure 7 est une vue analogue à la figure 6, pour une variante du procédé de marquage ;
  • la figure 8 est une vue par l'arrière de la machine des figures 1 à 7 ;
  • la figure 9 est une vue en perspective analogue à la figure 1 pour une machine conforme à un deuxième mode de réalisation de l'invention ;
  • la figure 10 est une coupe longitudinale analogue à la figure 3, pour la machine de la figure 9 ;
  • la figure 11 est une représentation schématique analogue à la figure 6 pour la machine des figures 9 et 10 ;
  • la figure 12 est une vue analogue à la figure 11 pour, une variante du procédé de marquage ;
  • la figure 13 est une vue en perspective analogue à la figure 1 pour une machine conforme à un troisième mode de réalisation de l'invention ;
  • la figure 14 est une coupe longitudinale analogue à la figure 3, pour la machine de la figure 13 ;
  • la figure 15 est une vue en perspective comparable à la figure 1 pour une machine conforme à un quatrième mode de réalisation de l'invention ; et
  • la figure 16 est une coupe longitudinale analogue à la figure 3, pour la machine de la figure 15.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of four embodiments of a machine according to its principle and its implementation method, given only by way of example and with reference to the drawings in which:
  • the figure 1 and a perspective view of a portion of a marking machine according to the invention;
  • the figure 2 is a front view of the machine from the figure 1 with partial tearing;
  • the figure 3 is a section along the line III-III to the figure 2 ;
  • the figure 4 is a larger-scale view of detail IV of the figure 3 ;
  • the figure 5 is a larger-scale view of detail V to the figure 3 ;
  • the figure 6 is a schematic representation of a front view of the position of the arms and the punch of the machine of Figures 1 to 5 during a marking process;
  • the figure 7 is a view similar to the figure 6 for a variant of the marking method;
  • the figure 8 is a view from the back of the machine of the Figures 1 to 7 ;
  • the figure 9 is a perspective view similar to the figure 1 for a machine according to a second embodiment of the invention;
  • the figure 10 is a longitudinal section similar to the figure 3 , for the machine of the figure 9 ;
  • the figure 11 is a schematic representation similar to the figure 6 for the machine of figures 9 and 10 ;
  • the figure 12 is a view similar to the figure 11 for a variant of the marking method;
  • the figure 13 is a perspective view similar to the figure 1 for a machine according to a third embodiment of the invention;
  • the figure 14 is a longitudinal section similar to the figure 3 , for the machine of the figure 13 ;
  • the figure 15 is a perspective view comparable to the figure 1 for a machine according to a fourth embodiment of the invention; and
  • the figure 16 is a longitudinal section similar to the figure 3 , for the machine of the figure 15 .

Pour la clarté du dessin, le ruban de marquage des machines des figures 9 à 16 n'est pas représenté.For the sake of clarity, the marking tape of the machines of the Figures 9 to 16 is not represented.

La machine 2 représentée aux figures 1 à 7 comprend un châssis fixe 4 ainsi qu'un poinçon 6 de type chauffant et qui est susceptible d'un mouvement vertical représenté par la double flèche F1 aux figures 1 et 2. Ce poinçon chauffant 6 est prévu pour plaquer un ruban 8 sur la surface extérieure de pièces à marquer, telles que des flaconnettes de parfum ou de produits cosmétiques, ces flaconnettes étant de forme globalement cylindrique, le plus souvent à section circulaire. Pour la clarté du dessin, ces pièces ne sont pas représentées sur les figures, sauf une pièce de la figure 4.The machine 2 represented in Figures 1 to 7 comprises a fixed frame 4 and a punch 6 of the heating type and which is capable of a vertical movement represented by the double arrow F 1 to figures 1 and 2 . This heating punch 6 is provided for pressing a tape 8 on the outer surface of parts to be marked, such as bottles of perfume or cosmetics, these bottles being of generally cylindrical shape, most often circular section. For the sake of clarity, these parts are not shown in the figures, except for a part of the figure 4 .

Le ruban 8 s'étend entre une bobine d'alimentation et une bobine de collecte de déchets, connues en soi et qui ne sont pas représentées. Le ruban 8 est guidé par des galets de renvoi 16A et 16B.The ribbon 8 extends between a supply reel and a waste collection reel, known per se and which are not shown. The ribbon 8 is guided by return rollers 16A and 16B.

Pour amener les pièces à marquer en regard du poinçon 6, la machine 2 est équipée de deux bras 20 et 22 mobiles en rotation autour d'un même axe géométrique X2 défini par le châssis 4 et perpendiculaire à la direction de déplacement du poinçon 6, c'est-à-dire horizontal dans l'exemple des figures.To bring the pieces to mark next to the punch 6, the machine 2 is equipped with two arms 20 and 22 rotatable about the same geometric axis X 2 defined by the frame 4 and perpendicular to the direction of movement of the punch 6 , that is to say horizontal in the example of the figures.

Dans la présente description, les termes « avant » et « arrière » sont utilisés en considérant la machine 2 vue comme représentée à la figure 1 et dont l'avant est orientée vers l'observateur de cette figure. En d'autres termes, l'avant de la machine est visible à la figure 2 et sur la droite de la figure 3, alors que l'arrière de la machine est visible à la figure 8 et sur la gauche de la figure 3.In the present description, the terms "front" and "back" are used in view of the machine 2 seen as shown in FIG. figure 1 and whose front is oriented towards the observer of this figure. In other words, the front of the machine is visible at the figure 2 and on the right of the figure 3 , while the back of the machine is visible at the figure 8 and on the left of the figure 3 .

Le châssis 4 comprend une plaque avant 4A, une poutre longitudinale 4B, une plaque arrière 4C et un bâti 4D qui sont fixes. Un collecteur tournant 10 est monté sur la plaque 4A et est alimenté en air sous pression à distribuer entre différents organes pneumatiques de la machine 2. Ce collecteur comprend un noyau fixe 101 pourvu d'un orifice central et de plusieurs conduits de circulation d'air sous pression en direction de gorges ménagées à la périphérie de ce noyau. Une première bague 102 est montée autour du noyau 101, avec possibilité de rotation autour de l'axe X2. Un arbre creux 103 est monté dans le prolongement du noyau 101, le long de l'axe X2 et comprend une extrémité 1032 qui entoure partiellement le noyau 101, avec possibilité de rotation autour de l'axe X2. Une deuxième bague 104 est montée autour de l'arbre 103 avec possibilité de rotation autour de l'axe X2. Une plaque 105 relie les deux bagues 102 et 104 en étant solidarisée avec chacune d'entre elles au moyen de vis, de sorte que ces bagues peuvent tourner ensemble autour de l'axe X2 et des éléments 101 et 103. Un palier 120 est intercalé entre la bague 104 et l'arbre 103. Un manchon 106 est solidaire en rotation de la bague 104.The chassis 4 comprises a front plate 4A, a longitudinal beam 4B, a back plate 4C and a frame 4D which are fixed. A rotary manifold 10 is mounted on the plate 4A and is supplied with pressurized air to be distributed between different pneumatic members of the machine 2. This manifold comprises a fixed core 101 provided with a central orifice and several air circulation ducts. under pressure towards grooves formed at the periphery of this core. A first ring 102 is mounted around the core 101, with possibility of rotation about the axis X 2 . A hollow shaft 103 is mounted in the extension of the core 101, along the axis X 2 and comprises an end 1032 which partially surrounds the core 101, with possibility of rotation about the axis X 2 . A second ring 104 is mounted around the shaft 103 with the possibility of rotation about the axis X 2 . A plate 105 connects the two rings 102 and 104 being secured to each of them by means of screws, so that these rings can rotate together about the axis X 2 and elements 101 and 103. Bearing 120 is interposed between the ring 104 and the shaft 103. A sleeve 106 is integral in rotation with the ring 104.

Le bras 20 comprend une plaque avant 202 et une plaque arrière 204 reliée par un plateau 206 percé d'une ouverture 208. Le bras 202 est monté sur le manchon 106 lui-même supporté par le palier 120 par rapport à l'arbre 103.The arm 20 comprises a front plate 202 and a rear plate 204 connected by a plate 206 pierced with an opening 208. The arm 202 is mounted on the sleeve 106 itself supported by the bearing 120 relative to the shaft 103.

Le bras 20 porte un équipage 210 de supportage d'une pièce à marquer et qui comprend un boîtier 212, un mandrin creux 213 et deux paliers 214 et 215 de supportage de l'arbre creux 213 par rapport au boîtier 212, avec possibilité de rotation autour d'un axe X20 défini par le boîtier 212, parallèle à l'axe X2 et distinct de cet axe.The arm 20 carries a crew 210 for supporting a part to be marked and which comprises a housing 212, a hollow mandrel 213 and two bearings 214 and 215 for supporting the hollow shaft 213 relative to the housing 212, with the possibility of rotation about an axis X 20 defined by the housing 212, parallel to the axis X 2 and distinct from that axis.

Comme il ressort plus particulièrement de la figure 4, le mandrin creux 213 est bi-partite et comprend une partie avant 2132 et une partie arrière 2134.As is clear from the figure 4 , the hollow mandrel 213 is bi-partite and comprises a front portion 2132 and a rear portion 2134.

La partie avant 2132 est destinée à être engagée à l'intérieur d'une pièce à marquer qui est représentée par sa silhouette en trait mixte, uniquement à la figure 4, avec la référence 400.The front portion 2132 is intended to be engaged inside a part to be marked which is represented by its silhouette in dashed line, only to the figure 4 , with the reference 400.

A l'opposé de l'équipage 210, le bras 200 est équipé d'un contre-poids 203 qui permet d'équilibrer l'effet du bras 20 sur l'arbre 103.In contrast to the crew 210, the arm 200 is equipped with a counterweight 203 which makes it possible to balance the effect of the arm 20 on the shaft 103.

Le bras 22 présente une structure comparable à celle du bras 20 et comprend une plaque avant 222, une plaque arrière 224, un plateau 226 pourvu d'une ouverture non visible sur les figures mais comparable à l'ouverture 208. Un équipage 230 est rapporté sur le bras 22 et comprend un boîtier 232, un mandrin bi-partite 233 et des paliers comparables aux paliers 214 et 215. Le bras 22 est monté sur une troisième bague 108 solidaire en rotation de l'extrémité 1034 de l'arbre 103 opposée au noyau 101. Un contrepoids non représenté équipe le bras 22.The arm 22 has a structure comparable to that of the arm 20 and comprises a front plate 222, a rear plate 224, a plate 226 provided with an opening not visible in the figures but comparable to the opening 208. A crew 230 is reported on the arm 22 and comprises a housing 232, a bi-partite mandrel 233 and bearings comparable to the bearings 214 and 215. The arm 22 is mounted on a third ring 108 integral in rotation with the end 1034 of the opposite shaft 103 at the core 101. An unrepresented counterweight equips the arm 22.

Un moteur électrique brushless 30 est monté sur une platine 4E appartenant au châssis 4 et son arbre de sortie est en prise avec une courroie crantée 40 qui est enroulée sur une couronne dentée 50 claveté sur un arbre creux 60 sur lequel est immobilisé un support 209. La plaque arrière 204 du bras 20 est fixée sur le support 209 au moyen de vis dont une est visible à la figure 1. Ainsi, l'alimentation en courant électrique du moteur 30 permet d'entraîner en rotation le bras 20 autour de l'axe X2.A brushless electric motor 30 is mounted on a plate 4E belonging to the frame 4 and its output shaft is engaged with a toothed belt 40 which is wound on a ring gear 50 keyed on a hollow shaft 60 on which is immobilized a support 209. The rear plate 204 of the arm 20 is fixed on the support 209 by means of screws, one of which is visible at figure 1 . Thus, the power supply of the motor 30 makes it possible to rotate the arm 20 about the axis X 2 .

Par ailleurs, un deuxième moteur brushless 32 est monté sur une platine 4F appartenant au châssis 4 et son arbre de sortie attaque une courroie crantée 42 qui entoure une couronne 52 solidarisée, au moyen de vis 54 avec un support 219. La plaque arrière 224 du bras 22 est montée, au moyen de vis dont une seule est visible à la figure 1, sur le support 219. Ainsi, l'alimentation en courant du moteur 32 permet de faire tourner le bras 22 autour de l'axe X2.Furthermore, a second brushless motor 32 is mounted on a plate 4F belonging to the frame 4 and its output shaft drives a toothed belt 42 which surrounds a ring 52 secured by means of screws 54 with a support 219. The rear plate 224 of the arm 22 is mounted, by means of screws of which only one is visible at the figure 1 , on the support 219. Thus, the power supply of the motor 32 makes it possible to turn the arm 22 around the axis X 2 .

Comme les moteurs 30 et 32 peuvent être alimentés indépendamment l'un de l'autre, les chaînes cinématiques formées de ces moteurs, des courroies, des couronnes et des supports précités, ainsi que de l'arbre 60 pour ce qui concerne le bras 20, constituent des moyens indépendants d'entraînement de chacun des bras 20 et 22 en rotation autour de l'axe X2, indépendamment de l'autre bras.Since the motors 30 and 32 can be powered independently of each other, the kinematic chains formed of these motors, belts, rings and aforesaid supports, as well as the shaft 60 for the arm 20 , constitute independent means for driving each of the arms 20 and 22 in rotation about the axis X 2 , independently of the other arm.

Par ailleurs, un troisième moteur brushless 34 est supporté par le châssis 4 et son arbre de sortie entraîne une courroie 44 en prise avec une poulie 74 clavetée sur l'extrémité d'un arbre 84 aligné sur l'axe X2 et disposé radialement à l'intérieur de l'arbre 60. L'extrémité de l'arbre 84 opposée à la poulie 74 porte une deuxième poulie 94 sur laquelle est enroulée une courroie 114 qui passe à travers l'ouverture 208 et est également enroulée sur une poulie 134 montée fixe autour de la partie arrière 2134 du mandrin creux 213. Il est ainsi possible, en alimentant le moteur 34, de faire tourner les éléments 74, 84, 94, 114, 134 et 213, de telle sorte que le mandrin creux 213 tourne autour de l'axe X20. Ceci permet d'entraîner en rotation une pièce à marquer 400 autour de son axe longitudinal, lorsque cette pièce est supportée par la partie avant 2132 du mandrin 213.Furthermore, a third brushless motor 34 is supported by the frame 4 and its output shaft drives a belt 44 engaged with a pulley 74 keyed on the end of a shaft 84 aligned on the axis X 2 and arranged radially to the inside of the shaft 60. The end of the shaft 84 opposite the pulley 74 carries a second pulley 94 on which is wound a belt 114 which passes through the opening 208 and is also wound on a pulley 134 fixed mounting around the rear portion 2134 of the hollow mandrel 213. It is thus possible, by supplying the motor 34, to rotate the elements 74, 84, 94, 114, 134 and 213, so that the hollow mandrel 213 rotates around the X axis 20 . This makes it possible to rotate a workpiece 400 around its longitudinal axis, when this workpiece is supported by the front portion 2132 of the mandrel 213.

De la même manière, un quatrième moteur brushless 36 est supporté par le châssis 4 et entraîne une courroie 46 qui attaque une poulie 76 montée à une première extrémité d'un arbre 86 aligné sur l'axe X2 et disposée radialement à l'intérieur de l'arbre 84. Une deuxième poulie 96 est fixée à l'extrémité opposée de l'arbre 86 et entraîne une courroie 116 visible par arrachement à la figure 2 et qui circule autour d'une poulie 136 solidaire en rotation du mandrin creux 233, ce qui permet d'entraîner en rotation ce mandrin, autour d'un axe X22, parallèle aux axes X2 et X20 et distincts de ceux-ci.In the same manner, a fourth brushless motor 36 is supported by the frame 4 and drives a belt 46 which drives a pulley 76 mounted at a first end of a shaft 86 aligned on the axis X 2 and arranged radially inside. of the shaft 84. A second pulley 96 is attached to the opposite end of the shaft 86 and drives a belt 116 visible by pulling away from the shaft. figure 2 and which circulates around a pulley 136 integral in rotation with the hollow mandrel 233, which makes it possible to rotate this mandrel about an axis X 22 , parallel to the axes X 2 and X 20 and distinct therefrom .

L'arbre 86 se prolonge le long de l'axe X2 jusqu'à l'intérieur de l'extrémité 1034 de l'arbre 103 où une couronne 88 est clavetée sur l'arbre 86. Un palier 122 assure le centrage des arbres 86 et 103 entre eux avec possibilité de rotation relative.The shaft 86 extends along the axis X 2 to the inside of the end 1034 of the shaft 103 where a ring 88 is keyed on the shaft 86. A bearing 122 ensures the centering of the shafts 86 and 103 between them with the possibility of relative rotation.

Les moyens d'entraînement en rotation des mandrins 213 et 223, respectivement autour des axes X20 et X22, sont indépendant les uns des autres dans la mesure où ils permettent d'entraîner l'un ou l'autre des mandrins 213 et 233 en rotation autour des axes X20 et X22 où les deux, en fonction de l'alimentation du moteur 34, du moteur 36 ou de ces deux moteurs.The rotational drive means of the mandrels 213 and 223, respectively about the axes X 20 and X 22 , are independent of each other insofar as they allow one or other of the mandrels 213 and 233 to be driven. in rotation around the axes X 20 and X 22 where both, depending on the supply of the motor 34, the motor 36 or both engines.

Comme les moteurs 30 à 36 sont supportés par le châssis 4, ils ne sont pas déplacés lors des mouvements de rotation des bras 20 et 22, de sorte que l'inertie de ces bras est relativement peu élevée, ce qui facilite des déplacements à vitesse élevée et limite l'usure des pièces de support tels que les paliers.As the motors 30 to 36 are supported by the frame 4, they are not displaced during the rotational movements of the arms 20 and 22, so that the inertia of these arms is relatively low, which facilitates movements at high speed. high and limit the wear of support parts such as bearings.

Selon un aspect optionnel de l'invention qui n'est pas représenté, des tendeurs peuvent être disposés sur le trajet des courroies, notamment sur le trajet des courroies 114 et 116.According to an optional aspect of the invention which is not shown, tensioners may be arranged in the path of the belts, especially in the path of the belts 114 and 116.

Lorsqu'il convient de marquer une pièce 400 avec le ruban 8, celle-ci est montée sur l'un des bras, par exemple le bras 20 est celui-ci est déplacé jusqu'au voisinage du poinçon 6, dans le sens de la flèche de rotation R20 dans la première représentation de la figure 6. Le bras 22 est immobile, dans une position où une pièce préalablement chargée sur le mandrin 233 est déchargée de ce bras, au sein d'un poste de déchargement. En poursuivant le mouvement de rotation R20, le bras 20 suit le mouvement ascendant du poinçon 6 représenté par la flèche F1 dans la deuxième représentation de la figure 6. En effet, le poinçon 6 est motorisé, ce qui lui permet d'adapter sa position en hauteur à celle des pièces à marquer pour garantir un bon contact. Pendant ce temps, le bras 22 peut être déplacé vers une position de chargement d'une pièce 400 sur son arbre 233, à une vitesse qui peut être égale ou différente de la vitesse de déplacement en rotation du bras 20. Pendant la portion du mouvement du bras 20 où la pièce 400 qu'il déplace est en appui contre le ruban 8, cette pièce est entraînée en rotation autour de l'axe X20, ce que représente la flèche R213 dans la deuxième représentation de la figure 6. Dans la troisième représentation, le bras 22 a atteint une position de chargement où une pièce 400 peut être engagée sur le mandrin creux 233 alors que le bras 20 continue à se déplacer en rotation autour de l'axe X2, ce qui représente la flèche R20, afin de se dégager du poinçon 6 qui se déplace radialement en direction de l'axe X2 comme représenté par la flèche F'1. Dans cette configuration, la pièce en cours de marquage est entraînée en rotation autour de l'axe X20, ce que représente la flèche R213. Dans la quatrième représentation de la figure 6, le bras 22 est en cours de déplacement pour amener la pièce qu'il porte en configuration de marquage, ce que représente la flèche R22, alors que le bras 20 est en cours de déplacement pour amener la pièce qu'il supporte vers le poste de déchargement, ce que représente la flèche R20. Les vitesses de déplacement des bras 20 et 22 au cours de cette étape peuvent être identiques ou différentes, ce que permettent les moyens indépendants d'entraînement de ces bras en rotation autour de l'axe X2.When it is necessary to mark a piece 400 with the ribbon 8, the ribbon 8 is mounted on one of the arms, for example the arm 20 is this one is moved up to the vicinity of the punch 6, in the direction of the rotation arrow R 20 in the first representation of the figure 6 . The arm 22 is stationary, in a position where a previously loaded part on the mandrel 233 is discharged from this arm, within an unloading station. By continuing the rotational movement R 20 , the arm 20 follows the upward movement of the punch 6 represented by the arrow F 1 in the second representation of the figure 6 . Indeed, the punch 6 is motorized, which allows it to adapt its position in height to that of the parts to be marked to ensure good contact. During this time, the arm 22 can be moved to a load position of a workpiece 400 on its shaft 233, at a speed which may be equal to or different from the rotational speed of movement of the arm 20. During the portion of the movement of the arm 20 where the piece 400 that it moves bears against the ribbon 8, this piece is rotated around the axis X 20 , which represents the arrow R 213 in the second representation of the figure 6 . In the third representation, the arm 22 has reached a loading position where a part 400 can be engaged on the hollow mandrel 233 while the arm 20 continues to move in rotation about the axis X 2 , which represents the arrow R 20 , in order to disengage from the punch 6 which moves radially in the direction of the axis X 2 as represented by the arrow F ' 1 . In this configuration, the coin being marked is rotated about the X axis 20 , which represents the arrow R 213 . In the fourth representation of the figure 6 , the arm 22 is in the process of moving to bring the piece it carries in marking configuration, which represents the arrow R 22 , while the arm 20 is being moved to bring the piece that it supports towards the unloading station, which represents the arrow R 20 . The speeds of movement of the arms 20 and 22 during this step may be identical or different, which allow the independent means of driving these arms in rotation about the axis X 2 .

Dans la variante représentée à la figure 7, les bras 20 et 22 ont également des mouvements de rotation R20 et R22 qui sont indépendants l'un de l'autre. Dans ce mode de réalisation, le bras 20 est maintenu immobile pendant le marquage de la pièce 400 qu'il supporte. Dans la première représentation de la figure 7, le bras 20 est amené en position supérieure, au voisinage du poinçon 6, ce que représente la flèche R20. Ensuite, ce poinçon est abaissé, dans le sens de la flèche F1, alors que le bras est maintenu immobile, puis le poinçon 6 est déplacé horizontalement, dans le sens de la flèche F2 à la deuxième représentation de la figure 7, en roulant sur la pièce supportée par le mandrin creux 213 qui tourne alors autour de l'axe X20, comme représentée par la flèche R213. Au terme du marquage, le poinçon 6 est écarté de la pièce, ce que représente la flèche F'1 dans la troisième représentation de la figure 7.In the variant shown in figure 7 the arms 20 and 22 also have rotational movements R 20 and R 22 which are independent of one another. In this embodiment, the arm 20 is held stationary during the marking of the part 400 that it supports. In the first representation of the figure 7 , the arm 20 is brought to the upper position, in the vicinity of the punch 6, which represents the arrow R 20 . Then, this punch is lowered, in the direction of the arrow F 1 , while the arm is held stationary, then the punch 6 is moved horizontally, in the direction of the arrow F 2 to the second representation of the figure 7 , rolling on the part supported by the hollow mandrel 213 which then rotates about the axis X 20 , as represented by the arrow R 213 . At the end of the marking, the punch 6 is separated from the part, which represents the arrow F ' 1 in the third representation of the figure 7 .

Pendant ces mouvements, la rotation du bras 22 entre le poste de déchargement, où ce bras est présent dans la première représentation, et le poste de chargement, où ce bras est présent dans la troisième représentation, a lieu en temps masqué par rapport à la durée d'immobilisation du bras 20 nécessaire au marquage de la pièce qu'il porte. La flèche R22 représente cette rotation.During these movements, the rotation of the arm 22 between the unloading station, where this arm is present in the first representation, and the loading station, where this arm is present in the third representation, takes place in masked time relative to the immobilization time of the arm 20 necessary for marking the part it is carrying. The arrow R 22 represents this rotation.

Dans la dernière étape du procédé représenté de la figure 7, les bras 20 et 22 tournent autour de l'axe X2, ce que représentent les flèches R20 et R22, afin d'amener le bras 22 dans la position du bras 20 à la première représentation, et réciproquement.In the last step of the process represented by the figure 7 , the arms 20 and 22 rotate about the axis X 2 , which represent the arrows R 20 and R 22 , to bring the arm 22 in the position of the arm 20 at the first representation, and vice versa.

Selon une variante des procédés représentés aux figures 6 et 7, il est possible d'arrêter l'un des bras 20 ou 22 dans le secteur angulaire où le bras 20 est représenté dans la quatrième représentation de la figure 6 afin de permettre le contrôle du marquage effectué sur la pièce qu'il supporte, alors même que le bras 22 est en cours de déplacement pour amener une pièce au voisinage du poinçon 6. De même, il est possible d'arrêter le bras 22 dans le secteur angulaire où il est représenté dans la quatrième représentation de la figure 6 pour procéder à un repérage optique de la pièce à marquer. D'autres opérations peuvent être envisagées dans ces secteurs angulaires, avec arrêt des bras 20 et/ou 22 ou déplacement à vitesse lente.According to a variant of the processes represented in Figures 6 and 7 , it is possible to stop one of the arms 20 or 22 in the angular sector where the arm 20 is shown in the fourth representation of the figure 6 to allow control of the marking made on the part that it supports, even as the arm 22 is being moved to bring a piece in the vicinity of the punch 6. Similarly, it is possible to stop the arm 22 in the angular sector where it is represented in the fourth representation of the figure 6 to carry out an optical identification of the part to be marked. Other operations can be envisaged in these angular sectors, with arm stops 20 and / or 22 or slow speed movement.

Dans les deuxièmes à quatrième modes de réalisation de l'invention représenté aux figures 9 à 16, les éléments analogues à ceux du premier mode de réalisation portent les mêmes références. Dans ce qui suit, on décrit principalement ce qui distingue ces modes de réalisation du précédent.In the second to fourth embodiments of the invention shown in Figures 9 to 16 elements similar to those of the first embodiment bear the same references. In what follows, we mainly describe what distinguishes these embodiments from the previous one.

Dans le deuxième mode de réalisation représenté aux figures 9 à 13, le bras 20 est double, en ce sens qu'il comprend deux parties 20A et 20B qui s'étendent respectivement de part et d'autre de l'axe X2 et qui portent chacune un mandrin creux 213A, 213B faisant office d'organe de support pour la réception et le déplacement des pièces à marquer.In the second embodiment shown in Figures 9 to 13 , the arm 20 is double, in that it comprises two parts 20A and 20B which respectively extend on either side of the axis X 2 and which each carry a hollow mandrel 213A, 213B serving as support member for receiving and moving the parts to be marked.

De la même façon, le bras 22 comprend deux parties 22A et 22B qui s'étendent de part et d'autre de l'axe X2 et qui portent chacune un mandrin creux 233A et 233B formant support pour la réception et le déplacement de pièces à marquer.In the same way, the arm 22 comprises two parts 22A and 22B which extend on either side of the axis X 2 and which each carry a hollow mandrel 233A and 233B forming a support for receiving and moving parts to score.

Les bras 20 et 22 sont dans ce cas dépourvus de contrepoids.The arms 20 and 22 are in this case devoid of counterweight.

Les parties de bras 20A et 20B, d'une part, 22A et 22B, d'autre part, sont solidaires entre elles et entraînés en rotation de façon comparable à ce qui a été indiqué pour le premier mode de réalisation, respectivement au moyen de moteurs brushless 30 et 32 associés à des courroies 40 et équivalentes. De même, deux moteurs brushless 34 et 36 permettent d'entraîner en rotation les arbres creux 213A, 213B, 233A et 233B respectivement autour de leurs axes longitudinaux X20A, X20B, X22A, X22B.The arm portions 20A and 20B, on the one hand, 22A and 22B, on the other hand, are integral with each other and rotated in a manner comparable to that indicated for the first embodiment, respectively by means of brushless motors 30 and 32 associated with belts 40 and the like. Similarly, two brushless motors 34 and 36 can rotate the hollow shafts 213A, 213B, 233A and 233B respectively about their longitudinal axes X 20A , X 20B , X 22A , X 22B .

Comme il ressort plus particulièrement de la figure 10, l'arbre 84 entraîné en rotation par le moteur 34 est équipé d'une poulie double 94 qui entraîne deux courroies 114A et 114B permettant de mettre simultanément en rotation les mandrins creux 213A et 213B autour des axes X20A et X20B qui sont parallèles à l'axe X2. Une construction similaire est adoptée pour le bras 22.As is clear from the figure 10 , the shaft 84 rotated by the motor 34 is equipped with a double pulley 94 which drives two belts 114A and 114B making it possible to simultaneously rotate the hollow mandrels 213A and 213B about the X axes 20A and X 20B which are parallel to the X axis 2 . A similar construction is adopted for the arm 22.

Comme il ressort plus particulièrement de la figure 11, il est possible de faire tourner le bras 20 pour amener une pièce 400 qu'il support au contact du poinçon 6, alors que le bras 22 peut être ou non entraîné en rotation. Comme chacun des bras 20 porte deux organes de support formés par les mandrins creux 213A et 213B, il est possible d'amener des pièces supportées par ces bras dans quatre postes de traitement distincts de la machine 2. Pour le reste, le procédé de la figure 11 est comparable à celui de la figure 6.As is clear from the figure 11 it is possible to rotate the arm 20 to bring a piece 400 that supports in contact with the punch 6, while the arm 22 may or may not be rotated. As each of the arms 20 carries two support members formed by the hollow mandrels 213A and 213B, it is possible to bring parts supported by these arms in four processing stations separate from the machine 2. For the rest, the method of the figure 11 is comparable to that of the figure 6 .

Le procédé de la figure 12 est comparable à celle de la figure 7, les bras doubles permettant de manipuler simultanément quatre pièces.The process of figure 12 is comparable to that of the figure 7 , the double arms allowing simultaneous manipulation of four pieces.

Dans le troisième mode de réalisation des figures 13 et 14, les moteurs 34 et 36 sont remplacés par des moteurs brushless 38 et 39 respectivement montés sur les bras 20 et 22, ce qui permet à leurs arbres de sortie respectifs 382 et équivalents d'attaquer directement les mandrins creux 213 et 233. En pratique, les moteurs 38 et 39 sont fixés sur les boîtiers 212 et 232 des équipages 210 et 230 respectivement supportés par des bras 20 et 22.In the third embodiment of the figures 13 and 14 , the motors 34 and 36 are replaced by brushless motors 38 and 39 respectively mounted on the arms 20 and 22, which allows their respective output shafts 382 and the like to directly attack the hollow mandrels 213 and 233. In practice, the motors 38 and 39 are fixed on the housings 212 and 232 of the crews 210 and 230 respectively supported by arms 20 and 22.

Pour le reste, des moteurs brushless 30 et 32 analogues à ceux du premier mode de réalisation sont utilisés, conjointement avec des courroies crantées, pour entraîner en rotation les arbres 20 et 22 autour de l'axe X2.For the rest, brushless motors 30 and 32 similar to those of the first embodiment are used, together with toothed belts, to rotate the shafts 20 and 22 about the axis X 2 .

Les moteurs 38 et 39 sont alimentés chacun au moyen d'un câble électrique, le câble électrique 138 du moteur 38 étant visible à la figure 14, alors que le câble alimentant le moteur 39 n'est pas représenté, pour la clarté du dessin. Ce câble électrique passe à travers le volume central V60 de l'arbre creux 60 utilisé pour l'entraînement du bras 20 en rotation autour de l'axe X2. Ce câble 138 s'étend entre un collecteur tournant 150, formant source d'alimentation, et le moteur 38, ce collecteur étant lui-même relié au secteur et à une unité de commande non représentée.The motors 38 and 39 are each powered by means of an electric cable, the electrical cable 138 of the motor 38 being visible at the figure 14 , while the cable feeding the motor 39 is not shown, for clarity of the drawing. This electric cable passes through the central volume V 60 of the hollow shaft 60 used for driving the arm 20 in rotation around the axis X 2 . This cable 138 extends between a rotating collector 150, forming a power source, and the motor 38, this collector being itself connected to the mains and to a control unit not shown.

Afin d'alléger les masses en mouvement déplacées par chaque bras 20 ou 22, les variateurs de commande 148 et 149 des moteurs 38 et 39 sont montés sur un plateau 160 tournant autour de l'axe X2. Ces variateurs 148 et 149 sont régulièrement répartis sur le plateau 160. Le câble 138 s'étend en pratique entre le collecteur tournant 150 et un variateur 148 puis du variateur 148 jusqu'au moteur 38. Pour éviter que le câble 138 soit tordu lors de l'utilisation de la machine 2 sur une période relativement importante, ou soit arraché de l'un des variateurs 148 ou du moteur 138, le plateau 160 est entraîné en rotation autour de l'axe X2 au moyen d'un moteur brushless 162 qui attaque un arbre creux 164 au centre duquel circule également le câble 138.In order to lighten the moving masses displaced by each arm 20 or 22, the controllers 148 and 149 of the motors 38 and 39 are mounted on a plate 160 rotating about the axis X 2 . These drives 148 and 149 are regularly distributed on the plate 160. The cable 138 extends in practice between the rotary manifold 150 and a drive 148 and the drive 148 to the motor 38. To prevent the cable 138 is bent during the use of the machine 2 over a relatively large period, or is torn from one of the inverters 148 or the motor 138, the plate 160 is rotated about the axis X 2 by means of a brushless motor 162 which attacks a hollow shaft 164 in the center of which also runs the cable 138.

Le plateau 160 est entraîné par le moteur 162 à une vitesse angulaire correspondant à la vitesse moyenne de déplacement des bras 20 et 22 autour de l'axe X2. Ainsi, au bout d'un tour des bras 20 et 22, le plateau 160 a retrouvé une position angulaire correspondant à sa position de départ par rapport aux bras 20 et 22. Dans ces conditions, le décalage angulaire entre le plateau 160 et les moteurs 38 et 39 demeure relativement faible, au point qu'il ne risque pas d'induire un endommagement du câble 138 ou du câble correspondant qui alimente le moteur 39.The plate 160 is driven by the motor 162 at an angular speed corresponding to the average speed of movement of the arms 20 and 22 around the axis X 2 . Thus, at the end of a turn of the arms 20 and 22, the plate 160 has found an angular position corresponding to its starting position relative to the arms 20 and 22. Under these conditions, the angular offset between the plate 160 and the motors 38 and 39 remains relatively low, to the point that it is not likely to induce damage to the cable 138 or the corresponding cable which supplies the motor 39.

Le mode de réalisation des figures 15 et 16 diffère du précédent en ce que, au lieu des moteurs 30 et 32, on utilise deux moteurs couples 300 et 320 dont les rotors 302 et 322 sont centrés sur l'axe X2. Ces moteurs comprennent chacun un stator 304 ou 324 capable d'induire sur les rotors 302 et 322 un couple d'entraînement en rotation à une vitesse compatible avec la fonction des bras 20 et 22 qui sont solidaires en rotation le rotor 302 et 322. Deux bâtis 310 et 330 forment des paliers supportant l'un au moins des rotors, à savoir le rotor 302, étant précisé que le rotor 322 est disposé radialement autour d'une partie du rotor 302.The embodiment of the figures 15 and 16 differs from the previous one in that, instead of the motors 30 and 32, two torque motors 300 and 320 are used whose rotors 302 and 322 are centered on the axis X 2 . These motors each comprise a stator 304 or 324 capable of inducing on the rotors 302 and 322 a driving torque in rotation at a speed compatible with the function of the arms 20 and 22 which are integral in rotation the rotor 302 and 322. Two Racks 310 and 330 form bearings supporting at least one of the rotors, namely the rotor 302, it being specified that the rotor 322 is arranged radially around a portion of the rotor 302.

Les moteurs 300 et 320 permettent donc d'entraîner les bras 20 et 22 indépendamment l'un de l'autre autour de l'axe X2 qui est un axe de rotation commun aux rotors 302 et 322. Des mandrins 213 et 233 montés aux extrémités des bras 20 et 22 sont entraînés autour de deux axes X20 et X22 parallèles à l'axe X2 par des moteurs 38 et 39 analogues à ceux du troisième mode de réalisation.The motors 300 and 320 thus make it possible to drive the arms 20 and 22 independently of one another about the axis X 2, which is an axis of rotation common to the rotors 302 and 322. Mandrels 213 and 233 mounted to the ends of the arms 20 and 22 are driven around two axes X 20 and X 22 parallel to the axis X 2 by motors 38 and 39 similar to those of the third embodiment.

Dans tous les modes de réalisation, un collecteur tournant 10 permet d'alimenter en air des organes pneumatiques tels que vérins de positionnement. Par exemple, chaque bras 20 ou 22 peut être associé à un vérin permettant de plaquer une pièce à marquer sur le mandrin 213 ou 233. De plus, les mandrins creux 213 et 233 peuvent être alimentés en air pour « gonfler » une pièce 400 avant son marquage, afin de tendre sa paroi.In all the embodiments, a rotary manifold 10 makes it possible to supply air with pneumatic members such as positioning cylinders. For example, each arm 20 or 22 may be associated with a jack for pressing a part to be marked on the mandrel 213 or 233. In addition, the hollow mandrels 213 and 233 may be supplied with air to "inflate" a workpiece 400 before its marking, in order to stretch its wall.

Quel que soit le mode de réalisation considéré, l'invention permet de positionner les différents postes dans lesquels on intervient sur les pièces à marquer dans des positions dont l'écart angulaire n'est pas nécessairement fixé à 60°, comme dans le cas d'une machine à plateau tournant connu de l'état de la technique. L'écart angulaire entre le poste de chargement et la zone d'application du marquage sur la pièce peut être différent de l'écart angulaire entre la zone de marquage et la zone de déchargement. En outre, l'invention autorise de charger un objet sur l'un des bras 20 ou 22 dans toutes les positions angulaires autour de l'axe X2, ce qui permet d'adapter le poste de chargement à la géométrie des pièces à marquer.Whatever the embodiment considered, the invention makes it possible to position the various stations in which the parts to be marked are involved in positions whose angular spacing is not necessarily set at 60 °, as in the case of a turntable machine known from the state of the art. The angular difference between the loading station and the area of application of the marking on the workpiece may be different from the angular difference between the marking zone and the unloading zone. In addition, the invention allows charging an object on one of the arms 20 or 22 in all the angular positions around the axis X 2 , which makes it possible to adapt the loading station to the geometry of the parts to be marked. .

L'invention permet également d'entraîner en rotation une pièce à marquer autour d'un axe X20 ou X22, alors même que le bras 20 ou 22 qui la supporte est encore en rotation autour de l'axe X2, ce qui permet un gain de temps au début d'une étape de marquage du fait de l'anticipation réalisée. Les accélérations subites par les pièces en mouvement peuvent être diminuées du fait de cette anticipation.The invention also makes it possible to rotate a part to be marked about an axis X 20 or X 22 , even though the arm 20 or 22 which supports it is still rotating about the axis X 2 , which saves time at the beginning of a marking step because of the anticipation performed. Sudden accelerations of moving parts can be reduced by this anticipation.

Selon une variante non représentée de l'invention, le poinçon utilisé pour le marquage des pièces peut être un poinçon non chauffant.According to a not shown variant of the invention, the punch used for marking the parts may be a non-heating punch.

Selon une autre variante non représentée, deux organes de marquage ou plus peuvent être utilisés puisque les bras peuvent s'arrêter successivement en regard de chacun de ces organes de marquage indépendamment du trajet des autres bras.According to another variant not shown, two or more marking members can be used since the arms can stop successively opposite each of these marking members regardless of the path of the other arms.

Des bras portant chacun deux supports tels que les arbres 213 et 233 peuvent être utilisés avec les troisième et quatrième modes de réalisation, en appliquant l'enseignement technique du deuxième mode de réalisation.Arms each carrying two supports such as the shafts 213 and 233 can be used with the third and fourth embodiments, applying the technical teaching of the second embodiment.

Le nombre de bras de la machine, peut, en variante, être supérieur à deux.The number of arms of the machine, may alternatively be greater than two.

En alternative aux courroies qui forment des liens souples pour l'entraînement des bras ou des mandrins, on peut utiliser des chaînes.As an alternative to belts that form flexible links for driving arms or mandrels, chains can be used.

L'invention a été décrite ci-dessus dans le cas où le marquage a lieu grâce à un mouvement de rotation d'une pièce sur son mandrin. L'invention peut toutefois être mise en oeuvre dans une machine dans laquelle le marquage est réalisé par frappe directe, sur une face plane d'un objet. L'invention peut également être mise en oeuvre dans une machine de marquage de pièces de forme, c'est-à-dire de pièces à section non circulaire.The invention has been described above in the case where the marking takes place due to a rotational movement of a workpiece on its mandrel. The invention may however be implemented in a machine in which the marking is made by direct striking, on a flat face of an object. The invention can also be implemented in a machine for marking shaped parts, that is to say non-circular section pieces.

L'invention est décrite ci-dessus et représentée sur les figures ci-jointes pour un mode de réalisation où elle est appliquée à une machine de marquage, ce qui est tout à fait avantageux.The invention is described above and shown in the accompanying figures for an embodiment where it is applied to a marking machine, which is quite advantageous.

L'invention peut également être mise en oeuvre pour une machine de sérigraphie, auquel cas on doit déplacer une pièce à marquer en regard d'un écran encré qui forme un organe de marquage, dont la fonction est comparable à celle du poinçon 6 mentionné ci-dessus.The invention may also be implemented for a screen printing machine, in which case it is necessary to move a part to be marked opposite an inked screen which forms a marking member, whose function is comparable to that of the punch 6 mentioned above. -above.

L'invention est également applicable, dans un autre mode de réalisation, à une machine d'étiquetage, plus précisément une machine de pose d'étiquettes, dans laquelle une laize sur laquelle sont disposées des étiquettes circule jusqu'à proximité de pièces à étiqueter, alors qu'un organe d'appui, couramment dénommé « sabre », presse périodiquement la laize contre la surface extérieure des pièces à étiqueter, afin d'y appliquer une étiquette. Là encore, les pièces à étiqueter, doivent être déplacées par rapport à l'organe d'étiquetage que constitue le sabre et l'invention peut être mise en oeuvre à cet effet.The invention is also applicable, in another embodiment, to a labeling machine, more specifically a label-laying machine, in which a width on which labels are arranged circulates to the vicinity of parts to be labeled. , while a support member, commonly called "saber" periodically presses the width against the outer surface of the parts to be labeled, in order to apply a label. Again, the parts to be labeled, must be moved relative to the labeling member that is the sword and the invention can be implemented for this purpose.

Claims (10)

Machine de marquage (2) ou d'étiquetage comprenant au moins un organe de marquage (6) ou d'étiquetage et des moyens d'amenée de chaque pièce à marquer ou à étiqueter en regard de l'organe de marquage ou d'étiquetage, ces moyens d'amenée comprenant au moins deux bras (20, 22) tournant autour d'un premier axe géométrique commun (X2) et portant chacun au moins un organe (213, 233 ; 213A, 213B, 233A, 233B) de support d'une pièce à marquer ou à étiqueter
caractérisée en ce que les moyens d'amenée comprennent en outre, des moyens indépendants (30, 32, 40, 42, 50, 52, 60, 209, 219 ; 300, 320) d'entraînement de chacun des bras en rotation autour du premier axe géométrique commun (X2), indépendamment de l'autre bras.Marking or labeling machine (2) comprising at least one marking or labeling member (6) and means for feeding each piece to be marked or labeled opposite the marking or labeling member said supply means comprising at least two arms (20, 22) rotating around a first common geometric axis (X 2 ) and each carrying at least one member (213, 233, 213A, 213B, 233A, 233B) of support of a coin to be marked or labeled
characterized in that the supplying means further comprises independent means (30, 32, 40, 42, 50, 52, 60, 209, 219, 300, 320) for driving each of the arms in rotation about the first common geometric axis (X 2 ), independently of the other arm. Machine selon la revendication 1, caractérisée en ce que les moyens indépendants comprennent au moins deux moteurs électriques (30, 32 ; 300, 320) dédiés chacun à l'entraînement d'un bras (20, 22) en rotation autour du premier axe géométrique (X2) et qui sont supportés par un châssis fixe (4) de la machine (2).Machine according to claim 1, characterized in that the independent means comprise at least two electric motors (30, 32, 300, 320) each dedicated to driving an arm (20, 22) in rotation around the first geometric axis (X 2 ) and which are supported by a fixed frame (4) of the machine (2). Machine selon l'une des revendications précédentes, caractérisée en ce qu'elle comprend des moyens (34, 36, 74, 76, 84, 86, 94, 96, 114, 116) d'entraînement de chaque organe de support (213, 233 ; 213A, 213B, 233A, 233B) en rotation autour d'un deuxième axe géométrique (X20, X22) parallèle au premier axe géométrique (X2).Machine according to one of the preceding claims, characterized in that it comprises means (34, 36, 74, 76, 84, 86, 94, 96, 114, 116) for driving each support member (213, 233; 213A, 213B, 233A, 233B) rotating about a second geometric axis (X 20 , X 22 ) parallel to the first geometric axis (X 2 ). Machine selon la revendication 3, caractérisée en ce que les moyens d'entraînement (34, 74, 84, 94, 114), en rotation autour d'un deuxième axe (X20), d'un support (213 ; 213A, 213B) porté par un premier bras (20) sont indépendants des moyens d'entraînement (36, 76, 86, 96, 116), en rotation autour d'un deuxième axe (X22), d'un autre support (233 ; 233A, 233B) porté par un deuxième bras (22).Machine according to claim 3, characterized in that the drive means (34, 74, 84, 94, 114), in rotation about a second axis (X 20 ), of a support (213; 213A, 213B ) carried by a first arm (20) are independent of the drive means (36, 76, 86, 96, 116), rotating about a second axis (X 22 ), another support (233; 233A , 233B) carried by a second arm (22). Machine selon l'une des revendications 3 ou 4, caractérisée en ce que les moyens d'entraînement, en rotation autour d'un deuxième axe géométrique (X20, X22) d'un organe de support (213, 233 ; 213A, 213B, 233A, 233B) porté par un bras comprennent un arbre (84, 86) centré sur le premier axe géométrique (X2) et cinématiquement relié, d'une part, à un actionneur électrique (34, 36) et, d'autre part, à l'organe de support.Machine according to one of claims 3 or 4, characterized in that the drive means, in rotation about a second geometric axis (X 20 , X 22 ) of a support member (213, 233, 213A, 213B, 233A, 233B) carried by an arm comprises a shaft (84, 86) centered on the first geometric axis (X 2 ) and kinematically connected, on the one hand, to an electric actuator (34, 36) and, on the other hand, to the support. Machine selon la revendication 5, caractérisée en ce que la liaison entre l'actionneur électrique (34, 36) et l'arbre (84, 86) et/ou la liaison entre l'arbre et l'organe de support (213, 233) est réalisée par un lien souple (44, 46, 114, 116).Machine according to claim 5, characterized in that the connection between the electric actuator (34, 36) and the shaft (84, 86) and / or the connection between the shaft and the support member (213, 233 ) is made by a flexible link (44, 46, 114, 116). Machine selon l'une des revendications 3 ou 4, caractérisée en ce que les moyens d'entraînement, en rotation autour d'un deuxième axe (X20, X22), d'un organe de support porté (213, 233) par un bras (20, 22) comprennent un moteur électrique (38, 39) monté sur le bras.Machine according to one of claims 3 or 4, characterized in that the drive means, in rotation about a second axis (X 20 , X 22 ), of a support member carried (213, 233) by an arm (20, 22) comprises an electric motor (38, 39) mounted on the arm. Machine selon la revendication 7, caractérisée en ce que le moteur électrique (38, 39) monté sur le bras est piloté par au moins un organe de commande (148, 149) monté sur un support (160) tournant autour du premier axe géométrique (X2) et en ce qu'un actionneur électrique (162) est apte à entraîner le support en rotation autour d'un premier axe géométrique, à une vitesse égale à la moyenne des vitesses de rotation des bras (20, 22) sur un tour.Machine according to claim 7, characterized in that the electric motor (38, 39) mounted on the arm is driven by at least one control member (148, 149) mounted on a support (160) rotating about the first geometric axis ( X 2 ) and in that an electric actuator (162) is able to drive the support in rotation about a first geometric axis, at a speed equal to the average speed of rotation of the arms (20, 22) on a tower. Machine selon l'une des revendications précédentes, caractérisée en ce que l'un au moins des bras (20, 22) porte deux organes de support (213A, 213B, 233A, 233B) d'une pièce à marquer, de part et d'autre du premier axe géométrique (X2).Machine according to one of the preceding claims, characterized in that at least one of the arms (20, 22) carries two support members (213A, 213B, 233A, 233B) of a part to be marked, on each side and other of the first geometric axis (X 2 ). Procédé de marquage ou d'étiquetage dans lequel on amène successivement des pièces (400) à marquer ou à étiqueter en regard d'au moins un organe de marquage (6) ou d'étiquetage, caractérisé en ce qu'il comprend des étapes consistant à : a) charger une pièce (400) sur un organe de support (213, 233 ; 213A, 213B, 233A, 233B) porté par un bras (20, 22) appartenant à un ensemble de plusieurs bras tournant autour d'un premier axe géométrique (X2) ; b) faire tourner (R20, R22) le bras (20) sur lequel est chargée la pièce autour du premier axe, jusqu'à ce que la pièce (400) soit en regard de l'organe de marquage (6) ou d'étiquetage, indépendamment du mouvement du ou des autres bras (22) de l'ensemble de bras ; c) faire tourner l'organe de support (213) et la pièce (400) par rapport au bras (20), autour d'un deuxième axe géométrique (X20) parallèle au premier axe ; d) marquer la pièce (F1), au moyen de l'organe de marquage, ou déposer une étiquette sur la surface périphérique de la pièce à étiqueter, au moyen de l'organe d'étiquetage ; e) faire tourner le bras (20) autour du premier axe (X2) jusqu'à ce que la pièce soit au niveau d'un poste de déchargement, indépendamment du mouvement du ou des autres bras (22) de l'ensemble de bras ; et f) décharger la pièce marquée de l'organe de support. A method of marking or labeling in which parts (400) are successively brought to mark or label opposite at least one marking member (6) or labeling, characterized in that it comprises steps consisting of at : a) loading a workpiece (400) onto a support member (213, 233, 213A, 213B, 233A, 233B) carried by an arm (20, 22) belonging to a plurality of arms rotating about a first geometric axis (X 2 ); b) rotating (R 20 , R 22 ) the arm (20) on which the piece is loaded around the first axis, until the piece (400) is opposite the marking member (6) or labeling, regardless of movement of the other arm (s) (22) of the arm assembly; c) rotating the support member (213) and the workpiece (400) relative to the arm (20) around a second geometric axis (X 20 ) parallel to the first axis; d) marking the part (F 1 ) by means of the marking member, or depositing a label on the peripheral surface of the part to be labeled, by means of the labeling member; e) rotating the arm (20) about the first axis (X 2 ) until the workpiece is at an unloading station, regardless of the movement of the other arm (s) (22) of the set of arms ; and f) unload the marked part of the support member.
EP10162019A 2009-05-06 2010-05-05 Apparatus and method for marking and labelling Active EP2248725B1 (en)

Applications Claiming Priority (1)

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FR0953019A FR2945237B1 (en) 2009-05-06 2009-05-06 MACHINE AND METHOD FOR MARKING OR LABELING

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AT (1) ATE547330T1 (en)
BR (1) BRPI1002385B1 (en)
ES (1) ES2382532T3 (en)
FR (1) FR2945237B1 (en)
RU (1) RU2526673C2 (en)

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DE102017201921B4 (en) 2017-02-08 2022-02-17 Koenig & Bauer Ag Device for printing hollow bodies
DE102018201033B3 (en) 2018-01-24 2018-10-31 Koenig & Bauer Ag Device for printing hollow bodies
DE102018121542B4 (en) 2018-09-04 2022-03-17 Koenig & Bauer Ag Device for printing hollow bodies
DE102018121540A1 (en) 2018-09-04 2020-03-05 Koenig & Bauer Ag Device for printing on hollow bodies
CN110103569B (en) * 2019-04-29 2020-11-13 湖北天桥机械(风机)有限公司 Curved surface offset press for large-basin printing
CN114275272B (en) * 2022-01-18 2023-08-11 东莞懿东自动化设备有限公司 Automatic labeling equipment for thickness of flat plate

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EP1518675A1 (en) * 2003-09-26 2005-03-30 Machines Dubuit Printing press
WO2008142225A2 (en) 2007-03-21 2008-11-27 Cer Tape marking machine

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WO2016176068A1 (en) * 2015-04-29 2016-11-03 Illinois Tool Works Inc. Machine for hot marking parts of revolution and marking method using such a machine
FR3035612A1 (en) * 2015-04-29 2016-11-04 Illinois Tool Works HOT MARKING MACHINE OF REVOLUTION PIECES AND METHOD FOR MARKING USING SUCH A MACHINE

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US8443861B2 (en) 2013-05-21
ES2382532T3 (en) 2012-06-11
RU2526673C2 (en) 2014-08-27
BRPI1002385A2 (en) 2015-09-22
FR2945237B1 (en) 2016-06-03
US20100282402A1 (en) 2010-11-11
EP2248725B1 (en) 2012-02-29
ATE547330T1 (en) 2012-03-15
RU2010118061A (en) 2011-11-10
FR2945237A1 (en) 2010-11-12
BRPI1002385B1 (en) 2020-08-11

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