EP0129926B1 - Device for the automatic control of a traversing operation - Google Patents

Device for the automatic control of a traversing operation Download PDF

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Publication number
EP0129926B1
EP0129926B1 EP84200844A EP84200844A EP0129926B1 EP 0129926 B1 EP0129926 B1 EP 0129926B1 EP 84200844 A EP84200844 A EP 84200844A EP 84200844 A EP84200844 A EP 84200844A EP 0129926 B1 EP0129926 B1 EP 0129926B1
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EP
European Patent Office
Prior art keywords
cable
winding
image
drum
grid
Prior art date
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Expired - Lifetime
Application number
EP84200844A
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German (de)
French (fr)
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EP0129926A2 (en
EP0129926A3 (en
Inventor
Bruno Buluschek
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Maillefer SA
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Maillefer SA
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Priority to AT84200844T priority Critical patent/ATE56682T1/en
Publication of EP0129926A2 publication Critical patent/EP0129926A2/en
Publication of EP0129926A3 publication Critical patent/EP0129926A3/en
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Publication of EP0129926B1 publication Critical patent/EP0129926B1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00Winding, coiling, or depositing filamentary material
    • B65H54/02Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28Traversing devices; Package-shaping arrangements
    • B65H54/2848Arrangements for aligned winding
    • B65H54/2854Detection or control of aligned winding or reversal
    • B65H54/2869Control of the rotating speed of the reel or the traversing speed for aligned winding
    • B65H54/2875Control of the rotating speed of the reel or the traversing speed for aligned winding by detecting or following the already wound material, e.g. contour following
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00Sensing or detecting means
    • B65H2553/40Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/42Cameras

Definitions

  • the present invention relates to the winding of large diameter cables on spools according to the preamble of claim 1 (known from EP-A-43368).
  • large diameter cable is meant insulated electrical cables with an outside diameter greater than 10 mm.
  • the diameter of the cables does not exceed 60 mm.
  • these cables are produced in segments as long as possible and they are wound on spools whose dimensions often reach several meters in diameter.
  • the winders supporting these coils and driving them in rotation are large mass devices requiring for their drive powerful and bulky motors.
  • Patent CH 576,392 describes a winder of this kind in which the cutting trolley is supported by a rail parallel to the axis of the spool holder and the spool holder itself has two independent uprights, one of the 'other and likely to move on rails also parallel to the same axis. It is thus possible to carry out either cutting operations in which the cutting carriage and consequently the cable guide move parallel to the axis of the coil over the entire length of the latter, or so-called self-cutting operations in which the cutting carriage remains fixed and it is the whole of the reel support which moves in translation in front of the cutting carriage.
  • the cutting trolley is movable in front of the spool holder and its drive is connected to the spool drive so that the speed of the cutting is proportional to the speed of the winding.
  • fig. 1 schematically shows a coil 1 on which a cable 2 is being deposited turn by turn.
  • the coil 1 comprises a cylindrical barrel 3 and two end flanges 4 and 5 also called cheeks having the form of discs.
  • the cable 2 is hooked by its end into a hole 6 formed in the barrel 3 of the coil 1.
  • the winding of the cable on the drum of the coil does not consist of successive parallel helices but forms a series of irregular curves.
  • the cable arrival strand designated by 7
  • the delay angle is maintained at a suitable angle called the delay angle and designated in FIG. 1 by r.
  • the angle of the strand 7 relative to a plane perpendicular to the axis of the coil must be modified and during the deposition of the last turn of a layer this angle must be brought to zero.
  • the delay angle is reversed, since during the deposition of a layer forming from left to right, this angle must be inverted compared to the value it has during the deposition of a layer forming from right to left.
  • EP 0 043 368 discloses a winder for large diameter cables which is equipped with an automatic control and command device.
  • This device comprises a detector which indicates, at each turn of the reel, the moment when the deflection which marks the start of a turn is at the location where the cable arrives on the winding, so as to move the reel by relative to the cable guide and thus maintain a delay angle of predetermined and constant value.
  • the object of the present invention is to create a device for automatically controlling a cutting operation capable of equipping large winders capable of supporting and driving reels intended to receive long lengths of cables of greater diameter. at 10 mm.
  • the subject of the present invention is an automatic control device for a cutting operation, capable of controlling the formation of a winding with successive turns and layers by a cable coming from a production or processing line, on the drum of a reel to which the cable is attached, the reel (1) being rotated about its axis on a support (10, 12), and the cable (2) passing through a cable guide (23, 24 ) which is movable relative to the reel support (10, 12) in the direction of said axis and which guides the cable with a predetermined delay angle towards a location for depositing a turn, characterized in that it com carries a turn formation detector (28, 29), comprising projection means (28, 29, 31), a reception surface (33) and detector means (34) placed on said reception surface and arranged to transmit an electrical signal representative of an image of the silhouette of a predetermined area of the winding comprising said location for depositing the cable, image formed on the receiving surface (33) by the projection means, in that it comprises furthermore separate drive means (x, y, z) capable of controlling the
  • MP means of analysis
  • FIGS. 2 and 3 We will begin by briefly describing the winding installation shown in FIGS. 2 and 3.
  • the barrel 3 and the left flange 5 of the coil 1 are visible in section through a plane perpendicular to the axis of the coil in FIG. 2.
  • the flange 5 is supported by a pinole 8 (fig. 3) carried itself by a bearing 9 integral with the left upright 10 of the winder.
  • the upper cross member 11 of the winding machine (fig. 2) extends parallel to the axis of the reel 1 and guides the upper end of the upright 12 which includes a bearing 13 itself guiding a pinole 14 supporting the right flange 4 of the reel 1.
  • the two uprights 10 and 12 of the winder rest on bases 15 and 16, provided with rollers 17 which roll on two parallel rails 18.
  • the rollers 17 are linked to drive means making it possible to move the whole of the winder back and forth on the rails 18, while means for driving the reel 1 (not shown) rotate one of the pinoles 8 or 14 provided with coupling elements to the corresponding flange of the reel.
  • the drive means of the coil are capable of rotating the latter around its axis at a constant or variable speed depending on conditions which can be predetermined. Thus, for example, the drive of the coil can take place at constant resistance torque.
  • a cutting support which comprises a rigid vertical upright 19 provided with guide means shown in the drawing by a dovetail groove 20 extending vertically and capable of guiding a horizontal arm 21 which can thus be moved vertically from top to bottom and bottom to top on the upright 19.
  • This support arm 21 itself has in its upper face a guide groove 22 in which slides a cutting carriage 23.
  • the latter carries two rollers cylindrical with vertical axes 24 arranged parallel to one another at such a distance from each other that the strand 7 of the cable 2 is guided closely between these two rollers.
  • Driving means not shown make it possible to move the carriage 23 from left to right and from right to left parallel to the axis of the coil 1 in front of the latter, the strand 7 of the cable being further guided in the height direction.
  • the rollers 25 are supported at their ends by uprights 26 which rest on the support arm 21.
  • Another support arm 27 secured to the horizontal base 21 makes it possible to fix above this base a camera 28, the principle of the optical system is shown schematically in FIG. 4.
  • This camera 28 has a lens 29 whose axis of the optical system is oriented horizontally and perpendicular to the axis of the coil 1.
  • the height of the axis of the objective 29 can be chosen at will and as will be seen later, it is controlled so that this axis is tangent to the last complete layer of the winding formed on the coil 1.
  • the axis of the objective 29 a direction different from that which has just been defined, in particular a slightly inclined direction, the rule of the tangency to the last complete layer of the winding being however a general rule
  • the described winding installation comprises a light ramp 30 arranged vertically opposite the camera 28 but on the other side of the coil.
  • this light ramp has the effect of projecting in a direction perpendicular to the axis of the coil the image of the silhouette of the winding, i.e. the image we obtain if we cut the winding being formed by a vertical plane passing through the axis of the coil.
  • This device is an optical device of a type known per se, in particular a device of the brand Reticon sold by the company EG & G. Inc. in Wellesley (Mass. USA).
  • This device called “image detection system” includes a lens 29 of the zoom type making it possible to vary the focal length and the magnification of the device.
  • the image formed by the objective is reflected by a 45 ° mirror 31 and projected as a real image onto a reception surface 33.
  • This reception surface 33 is materialized by a grid 34 which, in the embodiment described, is square and made up of a series of photodetector cells. These cells, for example photosensitive diodes are connected in a circuit materialized by a microprocessor MP.
  • a grid 34 formed of 1024 cells distributed over a square of 32 cells on the side allows detection sufficiently fine to meet the operating conditions.
  • the ramp 30 projects onto the objective 29 the shadow of the winding silhouette.
  • the objective 29 itself makes it possible to choose the size of the area of the winding which will be projected onto the grid 34 and it has been observed in particular that a magnification such as the area of the winding which is projected onto the grid 34 has the appearance shown in FIG. 5, was a suitable magnification.
  • FIG. 5 we see on the grid 34 formed of 1024 photodetector cells the image of the silhouette of a part of the winding comprising four turns of cables designated by A, B.
  • the cells are adjusted so that their state (conductive or non-conductive) changes according to whether they are exposed to the radiation from the ramp 30 where, for them, the ramp 30 is masked by the winding.
  • the 1024 cells will be divided into series each corresponding to a column so that by suitable switching of the electronic circuit MP, it will be possible, at any time, to perform a scanning operation during which all of the detector elements of the grid 34 will be explored successively, for example by successive columns.
  • This exploration will give rise to an electrical signal composed of a series of pulses in binary code giving for each element of the grid 34 its lit or hidden state.
  • the photo-diodes of the grid 34 will be explored by successive series, each series being composed by the elements of the same column.
  • Fig. 5 gives by way of example the result of such an exploration.
  • the 1024 photo-detector elements of the grid 34 are represented in the form of a square matrix numbered by lines and by columns. Each of these elements is designated by the number 35.
  • the image of the silhouette of a predetermined area of the winding as it appears on this grid is clearly represented in this fig. 5.
  • the silhouette of two turns A and B of the last complete layer deposited on the winding is clearly visible in the left part of the image as well as part of the silhouette of a turn C belonging to the same layer.
  • a fourth turn D of the last complete layer is completely embedded in the part of the image for which the elements are in the masked state. Above this complete layer, two turns E and F of the layer being formed appear. As it is visible in the drawing, this layer in formation is formed by successive turns going from right to left, although this may actually correspond to a layer forming from left to right as a result of the reversal of the image.
  • the winding being formed masks on the grid 34 the cells 35 which are on the right and below in FIG. 5, of a limit line G.
  • This line in fact envelops the profiles of the turns A, B, C. F and E.
  • a program element introduced in the microprocessor MP can determine the position on the grid 34, at any time, of the point S of this line corresponding to the vertex of the re-entrant right angle defined by the profiles of the turns B, C and F.
  • the essential characteristics of the detected image is therefore represented by the coordinates Y and X of the point S on the grid 34.
  • the central point of the grid being determined by reference coordinates C1 and C2, the ordinate Y designates the level at which the upper line of the layer formed by the turns A, B, C and D is located, while the abscissa X denotes the position along the X axis of the free edge of the image of the coil F.
  • the electronic circuit can emit control signals which will act on the various drive means that the device comprises, in order to correct the position of the point S determined by the coordinates X and Y and cause it to coincide with the center of the image, c . with the coordinates C1 and C2.
  • FIG. 6 the functional diagram of the control device described and we will now indicate how the result of the analysis of the image formed on the grid 34 at each scanning of the photo-diodes 35 is processed to act on the drive means.
  • the microprocessor MP which receives the information from the various detector means and which supplies the orders to the drive means.
  • a control panel 36 includes a number of control buttons 37 associated with indicator lamps 38 making it possible to put the device in the desired state so that the various control programs can run.
  • the different drive means are represented by the boxes 39 marked x, y, z and! respectively.
  • the marked box! is an alarm signal and draws the attention of the supervisory staff when a situation not foreseen by one of the programs arises.
  • the drive means marked z is a motor which acts on the cutting trolley 23 already described previously in relation to FIG. 2.
  • This motor can for example drive a pinion 40 in engagement with a rack 41 carried by the base 21.
  • the latter moves vertically on the upright 19 of the cutting device.
  • the control motor z makes it possible to move the two guide cylinders 24 in the horizontal direction relative to the camera 28
  • the rack and pinion gear 40, 41 is also equipped with a position detector which by a line 42 supplies the circuit MP with information on the instantaneous position of the cylinders 24 between which the cable passes relative to the base 21 and consequently to camera 28.
  • the drive motor acts therein in a manner which is not shown in detail in FIG. 6 on the base 21 to move it along the upright 19.
  • a detector 43 is also associated with it so that, by a line 44, information on the height of the base 21 and therefore of the camera 28, can be transmitted to the circuit MP.
  • the motor x acts on the bases 15 and 16 of the gantry winder and controls the rollers 17 thus causing an overall displacement of the winder on the rails 18.
  • a position mark 45 and a detector incorporated in the control of the rollers 17 make it possible to transmit to the circuit MP by a line 46 information on the instantaneous position of the winder along the rails 18.
  • the motor which rotates the coil 1 is shown diagrammatically in FIG. 6 and designated by 47. Normally, this motor is not directly controlled as a function of the results of the analysis of the image appearing on the grid 34. Indeed, it must meet other conditions. Its speed will be adjusted for example as a function of the resistance that the cable encounters in the line from which it comes and this motor will ensure the rotation of the coil, for example with a constant resistance torque. It can also work at constant speed. However, this motor is associated with an orientation detector shown diagrammatically in FIG. 6.
  • a wheel 48 rotating at the same speed as the coil 1 can be provided with regularly spaced tabs 49, so as to supply signals passing near a position detector 50, these signals being transmitted by a line 51 to the MP circuit in which they reach a counter which thus memorizes the orientation of the coil at all times.
  • the winding operation Before starting the control device, the winding operation must be prepared by first hooking the cable by its end into the opening 6 (fig. 1), this opening being located at one end of the drum 3 which can be the right end or the left end, and the coil being placed so that this opening is on the upper horizontal generator of the barrel.
  • the cutting device i.e. more precisely the base 21 will be placed so that the camera 28 whose axis of the lens 29 is fixed is clearly above the barrel of the coil. As shown in the drawing, this axis is oriented horizontally and perpendicular to the axis of the coil, although different axes can also be chosen. However, any movement of the winder or the base 21 carrying the camera should keep this axis parallel to itself.
  • Another essential adjustment to be made before the device is started consists in adjusting the magnification of the optical system 29 of the camera 28 as a function of the diameter of the cable. It is to allow this adjustment that the camera 28 is equipped with a variable focal length lens 29. The magnification will therefore be adjusted so that the image projected on the grid 34 corresponds in length to approx. 4 turns.
  • the conditions of fig. 5 correspond approximately to real conditions and it can be seen that the line G formed by straight line segments at right angles which limit the excited photo-diodes compared to those which are not gives an analog image of the real silhouette of the profile of the winding.
  • the automatic control device To allow the automatic control device to start, it is first of all necessary to lower the camera 28 and to start a program which brings the upper generator of the drum of the coil to be in the center of the image, c . that the ordinate Y is brought to be equal to the set value C1. This result is obtained by acting on the motor y which moves the base 21. Then, the winder is moved by acting on the motor x so that the image of the flange in the vicinity of which the cable is hung, appears in the center of the grid, i.e. that the abscissa X is equal to C2.
  • the preparation program for the operation of the automatic control device includes the adjustment of the starting position of the carriage 23.
  • the latter must be moved on the base 21 by control of the motor z, and this so that the abscissa Z is equal to zero, or in other words, that the center of the distance between the two rollers 24 coincides with a vertical reference plane which marks the axis of the camera lens 28.
  • the drive motor 47 of the coil 1 can be started.
  • the start of this second turn is immediately detected on the grid 34 by the fact that the abscissa X which locates the free flank of the last turn of the winding (turn F) differs from the value C2.
  • this detection is carried out immediately and depending on the results of the analysis, control signals are sent to either of the motors x or z, or possibly on both engines at the same time.
  • signals can also be sent to the y motor jointly or separately from the signals sent to the x and z motors.
  • one of the important features of the device described is that, depending on the importance or the speed of the variation of the detected image compared to the set image which corresponds to the desired conditions, differentiated control signals acting either on motor x or on motor z will be emitted by the MP circuit.
  • the position of the cutting trolley 23 relative to the axis of the objective 29, i.e. the Z coordinate will be set to correspond to a setpoint giving the desired angle r.
  • this angle is adjusted so as to be zero, then it takes the value of a delay angle determined in accordance with the winding conditions to ensure the regular deposition of the following turns against each other.
  • this angle can be temporarily changed.
  • the control device automatically re-engages the winding control program which runs until the new layer is practically complete and the internal surface of the opposite flange appears. again in the picture.
  • the device described makes it possible to act immediately and to correct the abnormal deviations without, for example, the number of connections to be established and the complication of the scanning circuits reaching uncontrollable values.
  • the basic element of the program consists in the fact that at the time of the formation of a new turn, the point S moves relative to the point of coordinates C1, C2.
  • This adjustment deviation expressed by a certain number of obscured cells is detected by the microprocessor and a signal is transmitted to one of the adjustment motors in order to make up for the detected deviation.
  • an optical system camera which may include a grid 34 having a surface area of 3 ⁇ 3 mm, it is obvious that the projection means capable of forming the image of the reception surface.
  • a predetermined area of the winding could be means of another type, using other radiation than visible light rays, for example infrared radiation or, where appropriate, ultrasound.
  • projection means means any arrangement having the effect that a radiation is partially obscured by the profile of the winding in the vicinity of the winding point and using this occultation to delimit on the receiving surface two regions, one of which represents the profile of the winding and the other the external environment of this profile.
  • a particularly advantageous means of projection consists of a lamp fixed immediately under the lens of the camera, and directing a light beam along an axis parallel to that of this lens and in a flat panel which has reflective properties for the light of the lamp and which is arranged vertically and parallel to the axis of the coil, at the location of the ramp 30, instead of the latter.
  • a reflective panel any flat surface coated with a sheet of material having catadioptric properties can be used, such as the sheets known under the name of "Scotchlight".
  • the "projection means" then being constituted by the wall or the bay and ambient light.
  • the lamp placed under the lens of the camera may have sufficient contrast by lighting the reel so that the profile of the latter appears in clear tone by relative to the dark environment, on the receiving surface furnished with the grid of photodetectors.

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  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
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Abstract

A sliding base is guided for vertical movement on an upright of the traverse mechanism. It bears a camera having its lens directed along a horizontal axis toward a vertical bank of lights. A drum supported by uprights and driven rotatingly by a motor can move back and forth on rails, while the traversing carriage bearing vertical rolls guiding a cable can likewise move parallel to the axis of the drum in order to check and, if neccessary, modify the approach angle formed by the incoming cable about to be laid on the winding. The silhouette of the zone of the winding where the turns are laid down is formed on a receiving surface within the camera, this surface taking the form of a photodiode grid, the periodic scanning of which yields signals sensing the conditions under which the cable is being wound.

Description

La présente invention concerne l'enroulement de câbles de grand diamètre sur des bobines selon le préambule de la revendication 1 (connu du EP-A-43368). Par câble de grand diamètre on entend des câbles électriques isolés dont le diamètre extérieur est supérieur à 10 mm. Cependant, en général, le diamètre des câbles ne dépasse pas 60 mm. Normalement, ces câbles sont produits en segments dont la longueur est aussi grande que possible et ils sont enroulés sur des bobines dont les dimensions atteignent souvent plusieurs mètres de diamètre. Les bobinoirs supportant ces bobines et les entraînant en rotation sont des appareils de grande masse nécessitant pour leur entraînement des moteurs puissants et volumineux. Le brevet CH 576 392 par exemple décrit un bobinoir de ce genre dans lequel le chariot de trancanage est supporté par un rail parallèle à l'axe du support de bobine et le support de bobine lui-même comporte deux montants indépendants l'un de l'autre et susceptibles de se déplacer sur des rails également parallèles au même axe. On peut ainsi réaliser soit des opérations de trancanage dans lesquelles le chariot de trancanage et par conséquent le guide-câble se déplacent parallèlement à l'axe de la bobine sur toute la longueur de cette dernière, soit des opérations dites d'auto-trancanage dans lesquelles le chariot de trancanage reste fixe et c'est l'ensemble du support de bobine qui se déplace en translation devant le chariot de trancanage.The present invention relates to the winding of large diameter cables on spools according to the preamble of claim 1 (known from EP-A-43368). By large diameter cable is meant insulated electrical cables with an outside diameter greater than 10 mm. However, in general, the diameter of the cables does not exceed 60 mm. Normally, these cables are produced in segments as long as possible and they are wound on spools whose dimensions often reach several meters in diameter. The winders supporting these coils and driving them in rotation are large mass devices requiring for their drive powerful and bulky motors. Patent CH 576,392, for example, describes a winder of this kind in which the cutting trolley is supported by a rail parallel to the axis of the spool holder and the spool holder itself has two independent uprights, one of the 'other and likely to move on rails also parallel to the same axis. It is thus possible to carry out either cutting operations in which the cutting carriage and consequently the cable guide move parallel to the axis of the coil over the entire length of the latter, or so-called self-cutting operations in which the cutting carriage remains fixed and it is the whole of the reel support which moves in translation in front of the cutting carriage.

On sait depuis longtemps réaliser des opérations de trancanage automatiques sur des bobinoirs de petites dimensions prévus pour la formation de bobines de fils téléphoniques par exemple, ces bobines ayant des joues atteignant un diamètre de 40 cm. Dans ce cas, le chariot de trancanage est mobile devant le support de bobine et son entraînement est connecté à l'entraînement de la bobine de sorte que la vitesse du trancanage est proportionnelle à la vitesse de l'enroulement.It has long been known to carry out automatic cutting operations on winders of small dimensions intended for the formation of coils of telephone wires for example, these coils having cheeks reaching a diameter of 40 cm. In this case, the cutting trolley is movable in front of the spool holder and its drive is connected to the spool drive so that the speed of the cutting is proportional to the speed of the winding.

Toutefois, lorsqu'il s'agit d'enrouler des câbles de grandes dimensions il n'est pas possible de commander une opération de trancanage automatique en rendant simplement la vitesse du chariot de trancanage proportionnelle à la vitesse de rotation de la bobine. Jusqu'à maintenant l'opération de trancanage est en général surveillée de façon constante par un opérateur. Pour illustrer les conditions mécaniques dans lesquelles les spires successives du câble se déposent sur le fût de la bobine on considérera tout d'abord la fig. 1 qui montre de façon schématique une bobine 1 sur laquelle un câble 2 est en train de se déposer spire par spire. La bobine 1 comporte un fût cylindrique 3 et deux flasques d'extrémité 4 et 5 aussi appelées joues ayant la forme de disques. Le câble 2 est accroché par son extrémité dans un trou 6 ménagé dans le fût 3 de la bobine 1. Celle-ci est entraînée en rotation dans le sens de la flèche A, de sorte qu'une première spire se dépose au contact du flasque 4. Toutefois, à la fin de la première spire, le câble 2 doit effectuer un mouvement de déviation sur la gauche afin que la seconde spire vienne se placer parallèlement et au contact de la première. Ainsi, l'enroulement du câble sur le fût de la bobine n'est pas constitué d'hélices successives parallèles mais forme une série de courbes irrégulières. Dans les bobinoirs connus sur lesquels l'opération d'enroulement est contrôlée constamment par un opérateur, on maintient le brin d'arrivée du câble, désigné par 7, sous un angle convenable appelé l'angle de retard et désigné à la fig. 1 par r. Evidemment, lorsque le dépôt d'une couche de spires est terminé, l'angle du brin 7 par rapport à un plan perpendiculaire à l'axe de la bobine doit être modifié et pendant le dépôt de la dernière spire d'une couche cet angle doit être amené à zéro. Lorsque la première spire de la couche suivante a été formée, il faut ensuite guider le brin 7 du câble de façon que l'angle de retard se renverse, puisque pendant le dépôt d'une couche se formant de gauche à droite, cet angle doit être inversé par rapport à la valeur qu'il a au cours du dépôt d'une couche se formant de droite àgauche.However, when it comes to winding large cables it is not possible to control an automatic cutting operation by simply making the speed of the cutting carriage proportional to the speed of rotation of the spool. Until now, the slicing operation has generally been constantly monitored by an operator. To illustrate the mechanical conditions under which the successive turns of the cable are deposited on the drum of the coil, we will first consider fig. 1 which schematically shows a coil 1 on which a cable 2 is being deposited turn by turn. The coil 1 comprises a cylindrical barrel 3 and two end flanges 4 and 5 also called cheeks having the form of discs. The cable 2 is hooked by its end into a hole 6 formed in the barrel 3 of the coil 1. The latter is rotated in the direction of the arrow A, so that a first turn is deposited in contact with the flange 4. However, at the end of the first turn, the cable 2 must make a deflection movement on the left so that the second turn comes to be placed in parallel and in contact with the first. Thus, the winding of the cable on the drum of the coil does not consist of successive parallel helices but forms a series of irregular curves. In known winders on which the winding operation is constantly monitored by an operator, the cable arrival strand, designated by 7, is maintained at a suitable angle called the delay angle and designated in FIG. 1 by r. Obviously, when the deposition of a layer of turns is completed, the angle of the strand 7 relative to a plane perpendicular to the axis of the coil must be modified and during the deposition of the last turn of a layer this angle must be brought to zero. When the first turn of the next layer has been formed, it is then necessary to guide the strand 7 of the cable so that the delay angle is reversed, since during the deposition of a layer forming from left to right, this angle must be inverted compared to the value it has during the deposition of a layer forming from right to left.

On connaît, par le document EP 0 043 368, un bobinoir pour câbles de grand diamètre qui est équipé d'un dispositif de contrôle et de commande automatique. Ce dispositif comporte un détecteur qui indique, à chaque tour de la bobine, le moment où la déviation qui marque le début d'une spire se trouve à l'emplacement où le câble arrive sur l'enroulement, de manière à déplacer la bobine par rapport au guide-câble et, ainsi, conserver un angle de retard de valeur prédéterminé et constant.EP 0 043 368 discloses a winder for large diameter cables which is equipped with an automatic control and command device. This device comprises a detector which indicates, at each turn of the reel, the moment when the deflection which marks the start of a turn is at the location where the cable arrives on the winding, so as to move the reel by relative to the cable guide and thus maintain a delay angle of predetermined and constant value.

Toutefois, la pratique montre que ce réglage est trop grossier pour donner des résultats satisfaisants dans tous les cas, de sorte qu'il était nécessaire de concevoir un dispositif plus souple que celui du document précité, afin de rendre possible effectivement une commande automatique.However, practice shows that this adjustment is too coarse to give satisfactory results in all cases, so that it was necessary to design a device more flexible than that of the aforementioned document, in order to effectively make automatic control possible.

La présente invention a pour but de créer un dispositif de commande automatique d'une opération de trancanage susceptible d'équiper des bobinoirs de grandes dimensions capables de supporter et d'entraîner des bobines destinées à recevoir de grandes longueurs de câbles d'un diamètre supérieur à 10 mm.The object of the present invention is to create a device for automatically controlling a cutting operation capable of equipping large winders capable of supporting and driving reels intended to receive long lengths of cables of greater diameter. at 10 mm.

Dans ce but, la présente invention a pour objet un dispositif de commande automatique d'une opération de trancanage, capable de commander la formation d'un enroulement à spires et couches successives par un câble provenant d'une ligne de production ou de traitement, sur le fût d'une bobine auquel le câble est accroché, la bobine (1) étant entraînée en rotation autour de son axe sur un support (10, 12), et le câble (2) traversant un guide-câble (23, 24) qui est mobile par rapport au support de bobine (10, 12) dans le sens dudit axe et qui guide le câble avec un angle de retard prédéterminé vers un emplacement de dépôt d'une spire, caractérisé en ce qu'il comporte un détecteur de formation de spire (28, 29), comprenant des moyens de projection (28, 29, 31), une surface de réception (33) et des moyens détecteurs (34) placés sur ladite surface de réception et agencés pour émettre un signal électrique représentatif d'une image de la silhouette d'une zone prédéterminée de l'enroulement comprenant ledit emplacement de dépôt du câble, image formée sur la surface de réception (33) par les moyens de projection, en ce qu'il comporte en outre des moyens d'entraînement distincts (x, y, z) capables de provoquer des déplacements relatifs au moins dans le sens de l'axe du support de bobine entre le guide-câble (23, 24) et le détecteur de formation de spire (28, 29), et entre le support de bobine (10, 12) et le détecteur de formation de spire (28, 29), et en ce qu'il comporte enfin des moyens d'analyse (MP) dudit signal électrique, agencés pour élaborer des signaux de commande agissant sur lesdits moyens d'entraînement (x, y, z), de façon à maintenir, à un emplacement donné sur ladite surface de réception (33), ladite image de la silhouette de l'emplacement du dépôt du câble.To this end, the subject of the present invention is an automatic control device for a cutting operation, capable of controlling the formation of a winding with successive turns and layers by a cable coming from a production or processing line, on the drum of a reel to which the cable is attached, the reel (1) being rotated about its axis on a support (10, 12), and the cable (2) passing through a cable guide (23, 24 ) which is movable relative to the reel support (10, 12) in the direction of said axis and which guides the cable with a predetermined delay angle towards a location for depositing a turn, characterized in that it com carries a turn formation detector (28, 29), comprising projection means (28, 29, 31), a reception surface (33) and detector means (34) placed on said reception surface and arranged to transmit an electrical signal representative of an image of the silhouette of a predetermined area of the winding comprising said location for depositing the cable, image formed on the receiving surface (33) by the projection means, in that it comprises furthermore separate drive means (x, y, z) capable of causing relative displacements at least in the direction of the axis of the coil support between the cable guide (23, 24) and the formation detector. turn (28, 29), and between the coil support (10, 12) and the turn formation detector (28, 29), and in that it finally comprises means of analysis (MP) of said electrical signal , arranged to generate control signals acting on said drive means (x, y, z) , so as to maintain, at a given location on said receiving surface (33), said image of the silhouette of the location of the cable deposit.

On va décrire ci-après à titre d'exemple une forme d'exécution du dispositif selon l'invention en se référant au dessin annexé, dont:

  • la fig. 1 est une vue schématique d'une bobine en cours d'enroulement déjà décrite ci-dessus,
  • la fig. 2 est une vue en coupe par un plan perpendiculaire à l'axe de la bobine d'un bobinoir équipé de la dite forme d'exécution du dispositif de commande,
  • la fig. 3 est une vue en plan de dessus du bobinoir représenté à la fig. 2,
  • la fig. 4 est une vue schématique du système optique incorporé au dispositif de commande,
  • la fig. 5 est une vue schématique à échelle agrandie montrant une grille d'éléments photo- électriques utilisée dans le dispositif de commande décrit,
  • la fig. 6 est un schéma électrique des éléments essentiels du dispositif de commande, et
  • la fig. 7 est un diagramme explicatif d'un algorithme du programme.
An embodiment of the device according to the invention will be described below by way of example with reference to the appended drawing, of which:
  • fig. 1 is a schematic view of a coil in the course of winding already described above,
  • fig. 2 is a sectional view through a plane perpendicular to the axis of the spool of a winder equipped with said embodiment of the control device,
  • fig. 3 is a top plan view of the winder shown in FIG. 2,
  • fig. 4 is a schematic view of the optical system incorporated in the control device,
  • fig. 5 is a diagrammatic view on an enlarged scale showing a grid of photoelectric elements used in the control device described,
  • fig. 6 is an electrical diagram of the essential elements of the control device, and
  • fig. 7 is an explanatory diagram of a program algorithm.

On commencera par décrire succinctement l'installation de bobinage représentée aux fig. 2 et 3. Le fût 3 et le flasque gauche 5 de la bobine 1 sont visibles en coupe par un plan perpendiculaire à l'axe de la bobine à la fig. 2. Le flasque 5 est supporté par une pinole 8 (fig. 3) portée elle-même par un palier 9 solidaire du montant gauche 10 du bobinoir. La traverse supérieure 11 du bobinoir (fig. 2) s'étend parallélement à l'axe de la bobine 1 et guide l'extrémité supérieure du montant 12 qui comporte un palier 13 guidant lui-même une pinole 14 supportant le flasque droit 4 de la bobine 1. Les deux montants 10 et 12 du bobinoir reposent sur des embases 15 et 16, munies de galets 17 qui roulen sur deux rails parallèles 18. Les galets 17 sont liés à des moyens d'entrainement permettant de déplacer l'ensemble du bobinoir en va et vient sur les rails 18, tandis que des moyens d'entraînement de la bobine 1 (non représentés) font tourner l'une des pinoles 8 ou 14 munie d'éléments d'accouplement au flasque correspondant de la bobine. Les moyens d'entraînement de la bobine sont capables de faire tourner cette dernière autour de son axe à une vitesse constante ou variable en fonction de conditions qui peuvent être prédéterminées. Ainsi par exemple, l'entraînement de la bobine peut avoir lieu à couple de résistance constant.We will begin by briefly describing the winding installation shown in FIGS. 2 and 3. The barrel 3 and the left flange 5 of the coil 1 are visible in section through a plane perpendicular to the axis of the coil in FIG. 2. The flange 5 is supported by a pinole 8 (fig. 3) carried itself by a bearing 9 integral with the left upright 10 of the winder. The upper cross member 11 of the winding machine (fig. 2) extends parallel to the axis of the reel 1 and guides the upper end of the upright 12 which includes a bearing 13 itself guiding a pinole 14 supporting the right flange 4 of the reel 1. The two uprights 10 and 12 of the winder rest on bases 15 and 16, provided with rollers 17 which roll on two parallel rails 18. The rollers 17 are linked to drive means making it possible to move the whole of the winder back and forth on the rails 18, while means for driving the reel 1 (not shown) rotate one of the pinoles 8 or 14 provided with coupling elements to the corresponding flange of the reel. The drive means of the coil are capable of rotating the latter around its axis at a constant or variable speed depending on conditions which can be predetermined. Thus, for example, the drive of the coil can take place at constant resistance torque.

Devant le bobinoir proprement dit, est placé un support de trancanage qui comporte un montant vertical rigide 19 muni de moyens de guidage représentés au dessin par une gorge à queue d'aronde 20 s'étendant verticalement et apte à guider un bras horizontal 21 qui peut ainsi être déplacé verticalement de haut en bas et de bas en haut sur le montant 19. Ce bras de support 21 présente lui-même dans sa face supérieure une gorge de guidage 22 dans laquelle coulisse un chariot de trancanage 23. Ce dernier porte deux rouleaux cylindriques d'axes verticaux 24 disposés parallèlement l'un à l'autre à une distance telle l'un de l'autre que le brin d'arrivée 7 du câble 2 est guidé étroitement entre ces deux rouleaux. Des moyens d'entrainement non représentés permettent de déplacer le chariot 23 de gauche à droite et de droite à gauche parallèlement à l'axe de la bobine 1 devant cette dernière, le brin 7 du câble étant en outre guidé dans le sens de la hauteur entre deux rouleaux horizontaux 25 également distants l'un de l'autre d'une distance égale au diamètre du câble. Les rouleaux 25 sont supportés à leurs extrémités par des montants 26 qui reposent sur le bras de support 21. Un autre bras de support 27 solidaire du socle horizontal 21 permet de fixer au-dessus de ce socle une caméra 28 dont le principe du système optique est représenté schématiquement à la fig. 4. Cette caméra 28 possède un objectif 29 dont l'axe du système optique est orienté horizontalement et perpendiculairement à l'axe de la bobine 1. Comme le bras 27 est supporté par le socle 21 qui est lui-même mobile en hauteur, la hauteur de l'axe de l'objectif 29 peut être choisie à volonté et comme on le verra plus loin, elle est commandée de façon à ce que cet axe soit tangent à la dernière couche complète de l'enroulement formé sur la bobine 1. Bien entendu, selon les circonstances on peut aussi choisir pour l'axe de l'objectif 29 une direction différente de celle qui vient d'être définie, notamment une direction légèrement inclinée, la règle de la tangence à la dernière couche complète de l'enroulement étant toutefois une règle généraleIn front of the winder proper, is placed a cutting support which comprises a rigid vertical upright 19 provided with guide means shown in the drawing by a dovetail groove 20 extending vertically and capable of guiding a horizontal arm 21 which can thus be moved vertically from top to bottom and bottom to top on the upright 19. This support arm 21 itself has in its upper face a guide groove 22 in which slides a cutting carriage 23. The latter carries two rollers cylindrical with vertical axes 24 arranged parallel to one another at such a distance from each other that the strand 7 of the cable 2 is guided closely between these two rollers. Driving means not shown make it possible to move the carriage 23 from left to right and from right to left parallel to the axis of the coil 1 in front of the latter, the strand 7 of the cable being further guided in the height direction. between two horizontal rollers 25 also spaced from each other by a distance equal to the diameter of the cable. The rollers 25 are supported at their ends by uprights 26 which rest on the support arm 21. Another support arm 27 secured to the horizontal base 21 makes it possible to fix above this base a camera 28, the principle of the optical system is shown schematically in FIG. 4. This camera 28 has a lens 29 whose axis of the optical system is oriented horizontally and perpendicular to the axis of the coil 1. As the arm 27 is supported by the base 21 which is itself movable in height, the height of the axis of the objective 29 can be chosen at will and as will be seen later, it is controlled so that this axis is tangent to the last complete layer of the winding formed on the coil 1. Of course, depending on the circumstances, it is also possible to choose for the axis of the objective 29 a direction different from that which has just been defined, in particular a slightly inclined direction, the rule of the tangency to the last complete layer of the winding being however a general rule

Finalement, l'installation de bobinage décrite comporte une rampe lumineuse 30 disposée verticalement en regard de la caméra 28 mais de l'autre côté de la bobine. On se rend compte que cette rampe lumineuse a pour effet de projeter dans une direction perpendiculaire à l'axe de la bobine l'image de la silhouette de l'enroulement, c.à.d. l'image que l'on obtient si l'on coupe l'enroulement en cours de formation par un plan vertical passant par l'axe de la bobine.Finally, the described winding installation comprises a light ramp 30 arranged vertically opposite the camera 28 but on the other side of the coil. We realize that this light ramp has the effect of projecting in a direction perpendicular to the axis of the coil the image of the silhouette of the winding, i.e. the image we obtain if we cut the winding being formed by a vertical plane passing through the axis of the coil.

On décrira maintenant le principe de la caméra 28. Il s'agit d'un appareil optique d'un type connu en soi, notamment d'un appareil de la marque Reticon vendu par la société EG & G. Inc. à Wellesley (Mass. U.S.A.). Cet appareil dénommé "système de détection d'images" comporte un objectif 29 du type zoom permettant de varier la distance focale et le grossissement de l'appareil. L'image formée par l'objectif est réfléchie par un miroir à 45° 31 et projetée en image réelle sur une surface de réception 33. Cette surface de réception 33 est matérialisée par une grille 34 qui dans la forme d'exécution décrite, est carrée et constituée par une série de cellules photo-détectrices. Ces cellules, par exemple des diodes photosensibles sont connectées dans un circuit matérialisé par un micro-processeur MP. Dans la forme d'exécution décrite on a trouvé qu'une grille 34 formée de 1024 cellules réparties sur un carré de 32 cellules de côté permettait une détection suffisamment fine pour répondre aux conditions de fonctionnement. En effet, la rampe 30 projette sur l'objectif 29 l'ombre de la silhouette de l'enroulement. L'objectif 29 permet lui-même de choisir la grandeur de la zone de l'enroulement qui sera projetée sur la grille 34 et on a constaté en particulier qu'un grossissement tel que la zone de l'enroulement qui est projetée sur la grille 34 a l'allure représentée à la fig. 5, était un grossissement convenable. A cette figure 5 on voit sur la grille 34 formée de 1024 cellules photodétectrices l'image de la silhouette d'une partie de l'enroulement comportant quatre spires de câbles désignées par A, B. C et D et faisant partie de la dernière couche complète déposée sur la bobine et l'image des deux dernières spires E et F de la couche en cours de formation, la spire F étant une spire partielle et la disposition géométrique étant telle que la partie de la silhouette désignée par F représente l'endroit où le brin 7 du câble 2 vient précisément se déposer sur l'enroulement. On constate que les cellules sont ajustées de façon que leur état (conducteur ou non conducteur) change selon qu'elles sont exposées au rayonnement de la rampe 30 où que, pour elles, la rampe 30 est masquée par l'enroulement. De préférence, les 1024 cellules seront réparties en séries correspondant chacune à une colonne de sorte que par une commutation convenable du circuit électronique MP on pourra, à chaque instant, effectuer une opération de balayage au cours de laquelle tous les éléments détecteurs de la grille 34 seront explorés successivement, par exemple par colonnes successives. Cette exploration donnera naissance à un signal électrique composé d'une suite d'impulsions en code binaire donnant pour chaque élément de la grille 34 son état éclairé ou caché. De préférence, les photos-diodes de la grille 34 seront explorées par séries successives, chaque série étant composée par les éléments d'une même colonne.We will now describe the principle of the camera 28. It is an optical device of a type known per se, in particular a device of the brand Reticon sold by the company EG & G. Inc. in Wellesley (Mass. USA). This device called "image detection system" includes a lens 29 of the zoom type making it possible to vary the focal length and the magnification of the device. The image formed by the objective is reflected by a 45 ° mirror 31 and projected as a real image onto a reception surface 33. This reception surface 33 is materialized by a grid 34 which, in the embodiment described, is square and made up of a series of photodetector cells. These cells, for example photosensitive diodes are connected in a circuit materialized by a microprocessor MP. In the embodiment described, it has been found that a grid 34 formed of 1024 cells distributed over a square of 32 cells on the side allows detection sufficiently fine to meet the operating conditions. Indeed, the ramp 30 projects onto the objective 29 the shadow of the winding silhouette. The objective 29 itself makes it possible to choose the size of the area of the winding which will be projected onto the grid 34 and it has been observed in particular that a magnification such as the area of the winding which is projected onto the grid 34 has the appearance shown in FIG. 5, was a suitable magnification. In this FIG. 5, we see on the grid 34 formed of 1024 photodetector cells the image of the silhouette of a part of the winding comprising four turns of cables designated by A, B. C and D and forming part of the last layer complete deposited on the reel and the image of the last two turns E and F of the layer being formed, the turn F being a partial turn and the geometrical arrangement being such that the part of the silhouette designated by F represents the place where the strand 7 of the cable 2 is precisely deposited on the winding. It can be seen that the cells are adjusted so that their state (conductive or non-conductive) changes according to whether they are exposed to the radiation from the ramp 30 where, for them, the ramp 30 is masked by the winding. Preferably, the 1024 cells will be divided into series each corresponding to a column so that by suitable switching of the electronic circuit MP, it will be possible, at any time, to perform a scanning operation during which all of the detector elements of the grid 34 will be explored successively, for example by successive columns. This exploration will give rise to an electrical signal composed of a series of pulses in binary code giving for each element of the grid 34 its lit or hidden state. Preferably, the photo-diodes of the grid 34 will be explored by successive series, each series being composed by the elements of the same column.

La fig. 5 donne à titre d'exemple le résultat d'une telle exploration. Sur cette figure, les 1024 éléments photo-détecteurs de la grille 34 sont représentés sous forme d'une matrice carrée numérotée par lignes et par colonnes. Chacun de ces éléments est désigné par le chiffre 35. L'image de la silhouette d'une zone prédéterminée de l'enroulement telle qu'elle apparaît sur cette grille est clairement représentée à cette fig. 5. La silhouette de deux spires A et B de la dernière couche complète déposée sur l'enroulement est clairement visible dans la partie de gauche de l'image de même qu'une partie de la silhouette d'une spire C appartenant à la même couche. Une quatrième spire D de la dernière couche complète est entièrement noyée dans la partie de l'image pour laquelle les éléments sont à l'état masqué. Au-dessus de cette couche complète on voit apparaître deux spires E et F de la couche en cours de formation. Telle qu'elle est visible au dessin, cette couche en formation se forme par spires successives allant de droite à gauche, bien que ceci puisse correspondre en réalité à une couche se formant de gauche à droite par suite du renversement de l'image.Fig. 5 gives by way of example the result of such an exploration. In this figure, the 1024 photo-detector elements of the grid 34 are represented in the form of a square matrix numbered by lines and by columns. Each of these elements is designated by the number 35. The image of the silhouette of a predetermined area of the winding as it appears on this grid is clearly represented in this fig. 5. The silhouette of two turns A and B of the last complete layer deposited on the winding is clearly visible in the left part of the image as well as part of the silhouette of a turn C belonging to the same layer. A fourth turn D of the last complete layer is completely embedded in the part of the image for which the elements are in the masked state. Above this complete layer, two turns E and F of the layer being formed appear. As it is visible in the drawing, this layer in formation is formed by successive turns going from right to left, although this may actually correspond to a layer forming from left to right as a result of the reversal of the image.

L'enroulement en cours de formation masque sur la grille 34 les cellules 35 qui se trouvent à droite et en-dessous à la fig. 5, d'une ligne limite G. Cette ligne enveloppe en effet les profils des spires A, B, C. F et E. Par l'analyse de l'état des cellules voisines de la ligne G, un élément de programme, introduit dans le microprocesseur MP, peut déterminer la position sur la grille 34, à un instant quelconque, du point S de cette ligne correspondant au sommet de l'angle droit rentrant défini par les profils des spires B, C et F. Les caractéristiques essentielles de l'image détectée sont donc représentés par les coordonnées Y et X du point S sur la grille 34.The winding being formed masks on the grid 34 the cells 35 which are on the right and below in FIG. 5, of a limit line G. This line in fact envelops the profiles of the turns A, B, C. F and E. By analyzing the state of the cells close to the line G, a program element introduced in the microprocessor MP, can determine the position on the grid 34, at any time, of the point S of this line corresponding to the vertex of the re-entrant right angle defined by the profiles of the turns B, C and F. The essential characteristics of the detected image is therefore represented by the coordinates Y and X of the point S on the grid 34.

Le point central de la grille étant déterminé par des coordonnées de consigne C1 et C2, l'ordonnée Y désigne le niveau auquel se trouve la ligne supérieure de la couche formée par les spires A, B, C et D, tandis que l'abscisse X désigne la position le long de l'axe des X du flanc libre de l'image de la spire F. Après comparaison des résultats d'un balayage de la grille 34 avec les valeurs de consigne prédéterminées C1 et C2, le circuit électronique peut émettre des signaux de commande qui vont agir sur les différents moyens d'entraînement que comporte le dispositif, afin de corriger la position du point S déterminé par les coordonnées X et Y et l'amener à coincider avec le centre de l'image, c.à.d. avec les coordonnées C1 et C2.The central point of the grid being determined by reference coordinates C1 and C2, the ordinate Y designates the level at which the upper line of the layer formed by the turns A, B, C and D is located, while the abscissa X denotes the position along the X axis of the free edge of the image of the coil F. After comparison of the results of a scan of the grid 34 with the predetermined set values C1 and C2, the electronic circuit can emit control signals which will act on the various drive means that the device comprises, in order to correct the position of the point S determined by the coordinates X and Y and cause it to coincide with the center of the image, c . with the coordinates C1 and C2.

De façon plus précise, on a représenté à la fig. 6 le schéma fonctionnel du dispositif de commande décrit et on indiquera maintenant comment le résultat de l'analyse de l'image formée sur la grille 34 à chaque balayage des photo-diodes 35 est traité pour agir sur les moyens d'entraînement. On voit à cette fig. 6 le microprocesseur MP qui reçoit les informations des différents moyens détecteurs et qui fournit les ordres aux moyens d'entraînement. Un tableau de commande 36 comporte un certain nombre de boutons de commande 37 associés à des lampes témoin 38 permettant de mettre le dispositif dans l'état voulu pour que les différents programmes de commande puissent se dérouler. Les différents moyens d'entraînement sont représentés par les cases 39 marquées respectivement x, y, z et !. La case marquee ! est un signal d'alarme et appelle l'attention du personnel surveillant lorsqu'une situation non prévue par l'un des programmes se présente. Le moyen d'entraînement marqué z est un moteur qui agit sur le chariot de trancanage 23 déjà décrit précédemment en relation avec la fig. 2. Ce moteur peut par exemple entraîner un pignon 40 en prise avec une crémaillière 41 portée par le socle 21. Celui-ci se déplace verticalement sur le montant 19 du dispositif de trancanage. On voit à la fig. 6 la caméra 28 qui est supportée dans une position fixe dans le sens horizontal mais mobile dans le sens vertical par le socle 21. Le moteur de commande z permet de déplacer les deux cylindres de guidage 24 dans le sens horizontal par rapport à la caméra 28. L'engrenage à crémaillière 40, 41 est également équipé d'un détecteur de position qui par une ligne 42 fournit au circuit MP une information sur la position instantanée des cylindres 24 entre lesquels passe le câble par rapport au socle 21 et par conséquent à la caméra 28.More specifically, there is shown in FIG. 6 the functional diagram of the control device described and we will now indicate how the result of the analysis of the image formed on the grid 34 at each scanning of the photo-diodes 35 is processed to act on the drive means. We see in this fig. 6 the microprocessor MP which receives the information from the various detector means and which supplies the orders to the drive means. A control panel 36 includes a number of control buttons 37 associated with indicator lamps 38 making it possible to put the device in the desired state so that the various control programs can run. The different drive means are represented by the boxes 39 marked x, y, z and! respectively. The marked box! is an alarm signal and draws the attention of the supervisory staff when a situation not foreseen by one of the programs arises. The drive means marked z is a motor which acts on the cutting trolley 23 already described previously in relation to FIG. 2. This motor can for example drive a pinion 40 in engagement with a rack 41 carried by the base 21. The latter moves vertically on the upright 19 of the cutting device. We see in fig. 6 the camera 28 which is supported in a fixed position in the horizontal direction but movable in the vertical direction by the base 21. The control motor z makes it possible to move the two guide cylinders 24 in the horizontal direction relative to the camera 28 The rack and pinion gear 40, 41 is also equipped with a position detector which by a line 42 supplies the circuit MP with information on the instantaneous position of the cylinders 24 between which the cable passes relative to the base 21 and consequently to camera 28.

Le moteur d'entraînement y agit d'une façon qui n'est pas représentée en détail à la fig. 6 sur le socle 21 pour le déplacer le long du montant 19. Un détecteur 43 lui est également associé afin que, par une ligne 44, une information sur la hauteur du socle 21 et par conséquent de la caméra 28, puisse être transmise au circuit MP.The drive motor acts therein in a manner which is not shown in detail in FIG. 6 on the base 21 to move it along the upright 19. A detector 43 is also associated with it so that, by a line 44, information on the height of the base 21 and therefore of the camera 28, can be transmitted to the circuit MP.

Finalement, le moteur x agit sur les embase 15 et 16 du bobinoir à portique et commande les galets 17 provoquant ainsi un déplacement d'ensemble du bobinoir sur les rails 18. Un repère de position 45 et un détecteur incorporé à la commande des galets 17 permettent de transmettre au circuit MP par une ligne 46 une information sur la position instantanée du bobinoir le long des rails 18.Finally, the motor x acts on the bases 15 and 16 of the gantry winder and controls the rollers 17 thus causing an overall displacement of the winder on the rails 18. A position mark 45 and a detector incorporated in the control of the rollers 17 make it possible to transmit to the circuit MP by a line 46 information on the instantaneous position of the winder along the rails 18.

Le moteur qui entraîne en rotation la bobine 1 est représenté schématiquement à la fig. 6 et désigné par 47. Normalement, ce moteur n'est pas commandé directement en fonction des résultats de l'analyse de l'image apparaissant sur la grille 34. En effet, il doit répondre à d'autres conditions. Sa vitesse sera réglée par exemple en fonction de la résistance que le câble rencontre dans la ligne dont il provient et ce moteur assurera la rotation de la bobine, par exemple avec un couple de résistance constant. Il peut aussi travailler à vitesse de rotation constante. Néanmoins, à ce moteur est associé un détecteur d'orientation représenté schematiquement à la fig. 6. Une roue 48 tournant à la même vitesse que la bobine 1, peut être pourvue de taquets 49 régulièrement espacés, de façon à fournir des signaux en passant à proximité d'un détecteur de position 50, ces signaux étant transmis par une ligne 51 au circuit MP dans lequel ils atteignent un compteur qui mémorise ainsi à chaque instant l'orientation de la bobine.The motor which rotates the coil 1 is shown diagrammatically in FIG. 6 and designated by 47. Normally, this motor is not directly controlled as a function of the results of the analysis of the image appearing on the grid 34. Indeed, it must meet other conditions. Its speed will be adjusted for example as a function of the resistance that the cable encounters in the line from which it comes and this motor will ensure the rotation of the coil, for example with a constant resistance torque. It can also work at constant speed. However, this motor is associated with an orientation detector shown diagrammatically in FIG. 6. A wheel 48 rotating at the same speed as the coil 1, can be provided with regularly spaced tabs 49, so as to supply signals passing near a position detector 50, these signals being transmitted by a line 51 to the MP circuit in which they reach a counter which thus memorizes the orientation of the coil at all times.

Il reste maintenant à expliquer comment le dispositif décrit ci-dessus peut être programmé de façon à commander le dépôt régulier spire par spire et couche par couche du câble 2 sur la bobine 1, alors que l'image projetée sur la grille 34 ne représente qu'une zone de faible dimension du profil de l'enroulement.It now remains to explain how the device described above can be programmed so as to control the regular deposition turn by turn and layer by layer of the cable 2 on the coil 1, while the image projected on the grid 34 represents only 'a small area of the winding profile.

Avant de mettre en route le dispositif de commande, l'opération de bobinage devra être préparée en accrochant tout d'abord le câble par son extrémité dans l'ouverture 6 (fig. 1), cette ouverture étant située à une extrémité du fût 3 qui peut être l'extrémité droite ou l'extrémité gauche, et la bobine étant placée de façon que cette ouverture se trouve sur la génératrice horizontale supérieure du fût. Le dispositif de trancanage, c.à.d. plus exactement le socle 21 sera placé de façon que la caméra 28 dont l'axe de l'objectif 29 est fixe se trouve nettement au-dessus du fût de la bobine. Tel qu'il est représenté au dessin, cet axe est orienté horizontalement et perpendiculairement à l'axe de la bobine, bien que des axes différents puissent aussi être choisis. Il convient cependant que tout déplacement du bobinoir ou du socle 21 portant la caméra maintienne cet axe parallèle à lui-même. Un autre réglage essentiel à effectuer avant la mise en route du dispositif consiste à ajuster le grossissement du système optique 29 de la caméra 28 en fonction du diamètre du câble. C'est pour permettre ce réglage que la caméra 28 est équipée d'un objectif à distance focale variable 29. Le grossissement sera donc ajusté de façon que l'image projetée sur la grille 34 corresponde en longueur à env. 4 spires. Les conditions de la fig. 5 correspondent approximativement à des conditions réelles et l'on voit que la ligne G formée de segments de droites à angle droit qui limitent les photo-diodes excitées par rapport à celles qui ne le sont pas donne une image analogique de la silhouette réelle du profil de l'enroulement.Before starting the control device, the winding operation must be prepared by first hooking the cable by its end into the opening 6 (fig. 1), this opening being located at one end of the drum 3 which can be the right end or the left end, and the coil being placed so that this opening is on the upper horizontal generator of the barrel. The cutting device, i.e. more precisely the base 21 will be placed so that the camera 28 whose axis of the lens 29 is fixed is clearly above the barrel of the coil. As shown in the drawing, this axis is oriented horizontally and perpendicular to the axis of the coil, although different axes can also be chosen. However, any movement of the winder or the base 21 carrying the camera should keep this axis parallel to itself. Another essential adjustment to be made before the device is started consists in adjusting the magnification of the optical system 29 of the camera 28 as a function of the diameter of the cable. It is to allow this adjustment that the camera 28 is equipped with a variable focal length lens 29. The magnification will therefore be adjusted so that the image projected on the grid 34 corresponds in length to approx. 4 turns. The conditions of fig. 5 correspond approximately to real conditions and it can be seen that the line G formed by straight line segments at right angles which limit the excited photo-diodes compared to those which are not gives an analog image of the real silhouette of the profile of the winding.

Pour permettre la mise en route du dispositif de commande automatique il convient tout d'abord d'abaisser la caméra 28 et d'enclencher un programme qui amène la génératrice supérieure du fût de la bobine à se trouver au centre de l'image, c.à.d. que l'ordonnée Y est amenée à être égale à la valeur de consigne C1. Ce résultat est obtenu en agissant sur le moteur y qui déplace le socle 21. Ensuite, on déplace le bobinoir en agissant sur le moteur x afin que l'image du flasque au voisinage duquel le câble est accroché, apparaisse au centre de la grille, c.à.d. que l'abscisse X soit égale à C2.To allow the automatic control device to start, it is first of all necessary to lower the camera 28 and to start a program which brings the upper generator of the drum of the coil to be in the center of the image, c . that the ordinate Y is brought to be equal to the set value C1. This result is obtained by acting on the motor y which moves the base 21. Then, the winder is moved by acting on the motor x so that the image of the flange in the vicinity of which the cable is hung, appears in the center of the grid, i.e. that the abscissa X is equal to C2.

Le programme de préparation au fonctionnement du dispositif automatique de commande comporte le réglage de la position de départ du chariot 23. Ce dernier doit être déplacé sur le socle 21 par commande du moteur z, et cela de façon que l'abscisse Z soit égale à zéro, ou autrement dit, que le centre de la distance entre les deux rouleaux 24 coincide avec un plan vertical de référence qui marque l'axe de l'objectif de la caméra 28. Dans ces conditions, te moteur d'entraînement 47 de la bobine 1 peut être mis en route. La première spire se dépose sur le fût de la bobine le long du flasque et après 3/4 de tours environ, qui sont détectés par le détecteur 48, 49, 50, un déplacement du chariot de trancanage 23 d'une distance z = D/2 (D étant égal au diamètre du câble), est commandé afin de passer à la formation de la seconde spire de l'enroulement. Le début de cette seconde spire est immédiatement détecté sur la grille 34 par le fait que l'abscisse X qui repère le flanc libre de la dernière spire de l'enroulement (spire F) diffère de la valeur C2. Comme la grille 34 subit une opération de balayage à intervalles répétés par exemple toutes les 20 ms, cette détection est opérée immédiatement et suivant les résultats de l'analyse, des signaux de commande sont envoyés sur l'un ou l'auttre des moteurs x ou z, ou éventuellement sur les deux moteurs en même temps. De plus, des signaux peuvent aussi être envoyés sur le moteur y conjointement ou séparément des signaux envoyés sur les moteurs x et z.The preparation program for the operation of the automatic control device includes the adjustment of the starting position of the carriage 23. The latter must be moved on the base 21 by control of the motor z, and this so that the abscissa Z is equal to zero, or in other words, that the center of the distance between the two rollers 24 coincides with a vertical reference plane which marks the axis of the camera lens 28. Under these conditions, the drive motor 47 of the coil 1 can be started. The first turn is deposited on the reel barrel along the flange and after approximately 3/4 of turns, which are detected by the detector 48, 49, 50, a movement of the cutting trolley 23 by a distance z = D / 2 (D being equal to the diameter of the cable), is controlled in order to proceed to the formation of the second turn of the winding. The start of this second turn is immediately detected on the grid 34 by the fact that the abscissa X which locates the free flank of the last turn of the winding (turn F) differs from the value C2. As the grid 34 undergoes a scanning operation at repeated intervals, for example every 20 ms, this detection is carried out immediately and depending on the results of the analysis, control signals are sent to either of the motors x or z, or possibly on both engines at the same time. In addition, signals can also be sent to the y motor jointly or separately from the signals sent to the x and z motors.

En effet, une des particularités importantes du dispositif décrit est que, suivant l'importance ou suivant la rapidité de la variation de l'image détectée par rapport à l'image de consigne qui correspond aux conditions désirées, des signaux de commande différenciés agissant soit sur le moteur x soit sur le moteur z seront émis par le circuit MP. Normalement, la position du chariot de trancanage 23 par rapport à l'axe de l'objectif 29, c.à.d. la coordonnée Z, sera réglée de façon à correspondre à une valeur de consigne donnant l'angle r désiré. Lors du dépôt de la première spire, cet angle est réglé de façon à être nul, puis il prend la valeur d'un angle de retard déterminé conformément aux conditions d'enroulement pour assurer le dépôt régulier des spires suivantes les unes contre les autres. Toutefois, lors de la détection de conditions anormales, cet angle peut être modifié passagèrement. Il suffit pour cela de programmer l'analyse des signaux représentant l'image portée sur la grille 34 afin que les signaux de commande émis agissent sur le moteur z. Grâce au fait que l'équipage mobile 23, 24, possède une inertie beacoup plus faible que la bobine et son support, le moteurz permet d'effectuer des corrections rapides de l'angle r. Toutefois, après tout écart anormal, le programme incorporé au circuit MP tendra à rétablir l'angle r optimum en agissant sur le moteur z et en même temps sur le moteur x afin que l'ensemble de la bobine défile progressivement devant l'objectif 29 de la caméra 28.Indeed, one of the important features of the device described is that, depending on the importance or the speed of the variation of the detected image compared to the set image which corresponds to the desired conditions, differentiated control signals acting either on motor x or on motor z will be emitted by the MP circuit. Normally, the position of the cutting trolley 23 relative to the axis of the objective 29, i.e. the Z coordinate will be set to correspond to a setpoint giving the desired angle r. During the deposition of the first turn, this angle is adjusted so as to be zero, then it takes the value of a delay angle determined in accordance with the winding conditions to ensure the regular deposition of the following turns against each other. However, when abnormal conditions are detected, this angle can be temporarily changed. For this, it suffices to program the analysis of the signals representing the image carried on the grid 34 so that the control signals emitted act on the motor z. Thanks to the fact that the moving element 23, 24 has a much lower inertia than the coil and its support, the motor enables rapid corrections to be made to the angle r. However, after any abnormal deviation, the program incorporated in the MP circuit will tend to restore the optimum angle r by acting on the motor z and at the same time on the motor x so that the whole of the coil progressively scrolls past the objective 29 from camera 28.

Un programme de commande d'inversion est enclenché automatiquement lorsqu'une couche formée par les spires A, B, C et D est pratiquement complète. La terminaison d'une couche de spires est détectée par le fait que le flasque opposé au flasque de départ, ou plus exactement la face interne de ce flasque apparaît sur l'image projetée sur la grille 34. On se rend compte facilement que cette circonstance peut être détectée par le fait que l'ensemble des photo-diodes de l'une ou de plusieurs des colonnes extrêmes de la grille sont masquées au moment où ce flasque apparaît dans l'image. Cette situation commande la mise en oeuvre du programme d'inversion qui comporte les opérations suivantes:

  • déplacement du chariot de trancanage afin d'amener l'angle r à la valeur zéro,
  • détection de l'apparition d'une première spire d'une nouvelle couche au voisinage du flasque et commande du moteur y afin d'élever le socle 21 et ramener ainsi l'ordonnée Y à la valeur C1, détection d'une rotation d'environ 3/4 de tours de la bobine 1,
  • commande du chariot de trancanage 23 afin de déplacer latéralement le câble d'une distance z = D/2.
  • commande des moteurs z et/ou x afin d'amener le flanc libre de la spire en cours de dépôt à l'abscisse C2,
  • rétablissement de l'angle de retard r, toutefois avec une orientation inverse de celle de la couche précédente.
An inversion control program is started automatically when a layer formed by turns A, B, C and D is practically complete. The termination of a layer of turns is detected by the fact that the flange opposite the starting flange, or more exactly the internal face of this flange appears on the image projected on the grid 34. It is easy to see that this circumstance can be detected by the fact that all the photo-diodes of one or more of the extreme columns of the grid are hidden when this flange appears in the image. This situation commands the implementation of the inversion program which includes the following operations:
  • displacement of the cutting trolley in order to bring the angle r to the value zero,
  • detection of the appearance of a first turn of a new layer in the vicinity of the flange and control of the motor y in order to raise the base 21 and thus bring the ordinate Y to the value C1, detection of a rotation of around 3/4 of coil 1 turns,
  • control of the cutting trolley 23 in order to move the cable laterally by a distance z = D / 2.
  • control of motors z and / or x in order to bring the free flank of the turn being deposited to the abscissa C2,
  • restoration of the delay angle r, however with an orientation opposite to that of the previous layer.

Lorsque le programme d'inversion a été exécuté et contrôlé, le dispositif de commande réen- clenche automatiquement le programme de contrôle d'enroulement qui se déroule jusqu'à ce que la nouvelle couche soit pratiquement complète et que la surface interne du flasque opposé apparaisse à nouveau dans l'image.When the inversion program has been executed and checked, the control device automatically re-engages the winding control program which runs until the new layer is practically complete and the internal surface of the opposite flange appears. again in the picture.

Le dépôt de spires successives d'un câble sur le fût d'une bobine ou sur des couches d'enroulement déjà formées peut présenter de nombreuses irrégularités, de sorte que la détection de la situation réelle et la discrimination entre une situation normale et une situation anormale qu'il convient de corriger exigent une grande précision dans l'analyse de l'image de la silhouette de l'enroulement. On a constaté toutefois que grâce à l'utilisation d'une caméra qui forme l'image de cette silhouette sur une grille d'éléments photo- détecteurs, tels que des photo-diodes, des dispositifs connus permettaient de donner au problème posé une solution fiable. En limitant l'image de la silhouette à une zone de dimensions prédéterminées de l'enroulement et en choisissant une caméra ayant une résolution relativement petite, il était possible de prévoir une grille ayant un nombre non excessif d'éléments photo-détecteurs et d'observer avec suffisamment de précision l'image du profil des spires. Ainsi, le dispositif décrit permet d'agir immédiatement et de corriger les écarts anormaux sans que par exemple, le nombre de connections à établir et la complication des circuits de balayage n'atteignent des valeurs incontrôlables. C'est ainsi qu'une grille de 32 éléments en longueur et 32 éléments en largeur, donc 1024 éléments au total, s'est révelée être une grille suffisamment fine pour pouvoir piloter et commander les paramètres variables qu'il convient de maîtriser dans des conditions satisfaisantes.The deposition of successive turns of a cable on the drum of a coil or on winding layers already formed can have many irregularities, so that the detection of the real situation and the discrimination between a normal situation and a situation abnormal that should be corrected require great precision in the analysis of the image of the silhouette of the winding. However, it has been found that thanks to the use of a camera which forms the image of this silhouette on a grid of photo-detector elements, such as photo-diodes, known devices made it possible to give the problem posed a solution. reliable. By limiting the image of the silhouette to a zone of predetermined dimensions of the winding and by choosing a camera having a relatively small resolution, it was possible to provide a grid having a non-excessive number of photo-detector elements and of observe with sufficient precision the image of the profile of the turns. Thus, the device described makes it possible to act immediately and to correct the abnormal deviations without, for example, the number of connections to be established and the complication of the scanning circuits reaching uncontrollable values. Thus, a grid of 32 elements in length and 32 elements in width, therefore 1024 elements in total, was found to be a sufficiently fine grid to be able to control and control the variable parameters which should be controlled in satisfactory conditions.

Un autre élément important du dispositif décrit est le fait que, grâce à l'utilisation d'un objectif à distance focale variable (zoom) le champ de l'image portée sur la grille peut être réglé à volonté en fonction du diamètre du câble. Autrement dit, quelque soit le diamètre du câble, on peut obtenir sur la grille 34 une ligne G enveloppant un nombre constant de spires formées ou en cours de formation. Ceci permet d'utiliser le même dispositif de commande pour bobiner des câbles de différents diamètres, et représente un avantage considérable lors de l'utilisation pratique du dispositif.Another important element of the device described is the fact that, thanks to the use of a variable focal length objective (zoom), the field of the image carried on the grid can be adjusted at will according to the diameter of the cable. In other words, whatever the diameter of the cable, one can obtain on the grid 34 a line G enveloping a constant number of turns formed or being formed. This allows you to use the same control device for winding cables of different diameters, and represents a considerable advantage during the practical use of the device.

Les essais ont montré que le déroulement du programme répétitif résumé par le diagramme de la fig. 7 permettait de contrôler et de commander automatiquement le dépôt d'un câble sur des bobines pesant plusieurs tonnes et atteignant plusieurs mètres de diamètre, ce qui simplifie considérablement le déroulement de ces opérations.The tests have shown that the course of the repetitive program summarized by the diagram in FIG. 7 made it possible to automatically control and command the deposition of a cable on reels weighing several tonnes and reaching several meters in diameter, which considerably simplifies the course of these operations.

L'élément de base du programme consiste dans le fait qu'au moment de la formation d'une nouvelle spire, le point S se déplace par rapport au point de coordonnées C1, C2. Cet écart de réglage exprimé par un certain nombre de cellules 35 obscurcies est détecté par le microprocesseur et un signal est transmis à l'un des moteurs de réglage afin de rattraper l'écart détecté.The basic element of the program consists in the fact that at the time of the formation of a new turn, the point S moves relative to the point of coordinates C1, C2. This adjustment deviation expressed by a certain number of obscured cells is detected by the microprocessor and a signal is transmitted to one of the adjustment motors in order to make up for the detected deviation.

Des algorithmes spéciaux commandent automatiquement les trois opérations essentielles qu'il y a lieu d'effectuer au cours du dépôt du câble:

  • 1. Mettre le point S aux coordonnées C1 C2.
  • 2. Elever le socle 21, renverser le sens du trancanage et modifier l'angle r au moment du changement de couche.
  • 3. Détecter que les spires de la dernière couche se trouvent à la périphérie des flasques de la bobine et arrêter l'enroulement à la fin de cette couche.
Special algorithms automatically control the three essential operations that must be carried out during cable deposition:
  • 1. Put point S at coordinates C1 C2.
  • 2. Raise the base 21, reverse the cutting direction and change the angle r when changing layers.
  • 3. Detect that the turns of the last layer are at the periphery of the flanges of the coil and stop the winding at the end of this layer.

On notera que toutes les opérations normales décrites ci-dessus peuvent se faire presqu'uniquement sur la base des données détectées lors de l'analyse de la ligne G. La seule donnée extérieure intervenant au cours de ces opérations est la mesure d'une rotation de 3/4 de tour depuis le début de chaque spire, pour la préparation au décalage de spire. Les détecteurs de fin de course décrits plus haut fonctionnent comme des éléments de sécurité.It will be noted that all the normal operations described above can be done almost exclusively on the basis of the data detected during the analysis of the line G. The only external data intervening during these operations is the measurement of a rotation 3/4 turn from the start of each turn, to prepare for the turn offset. The limit switches described above function as safety elements.

Bien que l'on ait décrit ci-dessus une caméra à système optique qui peut comporter une grille 34 ayant 3 x 3 mm de surface, il est évident que les moyens de projection aptes à former sur la surface de réception l'image d'une zone prédéterminée de l'enroulement pourraient être des moyens d'un autre type, utilisant d'autres rayonnements que les rayons lumineux visibles, par exemple des rayonnements infrarouges ou le cas échéant des ultra-sons.Although an optical system camera has been described above, which may include a grid 34 having a surface area of 3 × 3 mm, it is obvious that the projection means capable of forming the image of the reception surface. a predetermined area of the winding could be means of another type, using other radiation than visible light rays, for example infrared radiation or, where appropriate, ultrasound.

D'une façon générale, on entend par l'expression "moyens de projection" tout agencement ayant pour effet qu'un rayonnement subit une occultation partielle par le profil de l'enroulement au voisinage du point d'enroulement et utilisant cette occultation pour délimiter sur la surface de réception deux régions dont l'une représente le profil de l'enroulement et l'autre l'environnement extérieur de ce profil.Generally speaking, the expression "projection means" means any arrangement having the effect that a radiation is partially obscured by the profile of the winding in the vicinity of the winding point and using this occultation to delimit on the receiving surface two regions, one of which represents the profile of the winding and the other the external environment of this profile.

On a trouvé qu'un moyen de projection particulièrement avantageux consistait en une lampe fixée immédiatement sous l'objectif de la caméra, et dirigeant un faisceau lumineux selon un axe parallèle à celui de cet objectif et en un panneau plan qui présente des propriétés réfléchissantes pour la lumière de la lampe et qui est disposé verticalement et parallèlement à l'axe de la bobine, à l'emplacement de la rampe 30, en lieu et place de celle-ci. Comme panneau réflechissant on peut utiliser n'importe quelle surface plane revêtue d'une feuille de matière présentant des propriétés catadioptiques, comme les feuilles connues sous le nom de "Scotchlight". Dans certains cas, par exemple si la bobine se trouve devant un mur de couleur claire ou devant une baie vitrée, on peut même se passer de la lampe et du panneau réfléchissant, les "moyens de projection" étant alors constitués par le mur ou la baie et la lumière ambiante. Dans d'autres cas, par exemple si l'environnement de la bobine est sombre, la lampe placée sous l'objectif de la caméra peut avoir un contraste suffisant en éclairant la bobine pour que le profil de celle-ci apparaisse en ton clair par rapport à l'environnement sombre, sur la surface de réception garnie de la grille de photodétecteurs.It has been found that a particularly advantageous means of projection consists of a lamp fixed immediately under the lens of the camera, and directing a light beam along an axis parallel to that of this lens and in a flat panel which has reflective properties for the light of the lamp and which is arranged vertically and parallel to the axis of the coil, at the location of the ramp 30, instead of the latter. As a reflective panel, any flat surface coated with a sheet of material having catadioptric properties can be used, such as the sheets known under the name of "Scotchlight". In some cases, for example if the coil is in front of a light-colored wall or in front of a bay window, we can even do without the lamp and the reflective panel, the "projection means" then being constituted by the wall or the bay and ambient light. In other cases, for example if the environment of the reel is dark, the lamp placed under the lens of the camera may have sufficient contrast by lighting the reel so that the profile of the latter appears in clear tone by relative to the dark environment, on the receiving surface furnished with the grid of photodetectors.

Claims (11)

1. Apparatus for automatically controlling a traversing operation, capable of controlling the formation, by cable coming from a production or treatment line, of a winding of successive turns and layers on the core of a drum to which the cable is attached, the drum (1) being rotatingly driven about its axis on a support (10, 12), and the cable (2) passing through a cable-guide (23, 24) which is movable relative to the drum support (10, 12) in the direction of the said axis and which guides the cable at a predetermined approach angle towards a deposit location of a turn characterized in that it has a sensor of turn formation (28, 29) comprising projection means (28, 29, 31), a receiving surface (33) and sensing means (34) placed on said receiving surface and arranged so as to emit a representative electrical pulse of an image of the silhouette of a predetermined zone of the winding comprising said deposit location of the cable, image formed on the receiving surface (33) by the projection means, in that it further comprises distinct driving means (x, y, z) capable of causing relative shifts at least in the direction of the axis of rotation of the drum support between the cable-guide (23, 24) and the sensor of turn formation (28, 29), and between the drum support (10,12) and the sensor of turn formation (28, 29), and in that it comprises finally means for analyzing (MP) said electric pulse, arranged to process control signals acting on said driving means (x, y, z), so as to maintain the said image of the silhouette of the deposit location of the cable, at a given place on the said receiving surface (33).
2. Apparatus according to claim 1, characterized in that the means for analyzing (MP) are so arranged that said relative shifts between the cable-guide (23, 24) and the drum support (10,12) have the effect of keeping said approach angle constant.
3. Apparatus according to claim 1 or claim 2, characterized in that the cable-guide (23, 24) and the drum support (10, 12) are movable independently of each other in the direction of the axis of the drum relative to the sensor of turn formation (28, 29) and in that the means for analyzing (MP) are arranged so as to process the control signals of shift of the cable-guide and/or the control signals of shift of the drum support as a function of the results of the analysis.
4. Apparatus according to claim 3 characterized in that it comprises means for sensing (42, 45, 46) relative positions of the cable-guide (23, 24) and of the drum support (10, 12) relative to the sensor of turn formation (28, 29) and in that the means for analyzing (MP) are so arranged that the processing of the control signals utilizes sensing signals indicating said relative positions.
5. Apparatus according to one of the preceding claims characterized in that said projection means (28, 29, 31) comprise an optical system (29) and said sensing means (34) comprise a grid of photosensing elements placed on the receiving surface (33), and in that said optical system is so designed that said predetermined zone of which said image is formed on said grid comprises the silhouette of a predetermined number of turns and a predetermined number of layers, this number being independent of the diameter of the cable.
6. Apparatus according to claim 5 characterized in that said image is rectangular and comprises the silhouette of a zone of the winding comprising about four turns in length and about two layers in height.
7. Apparatus according to claim 5, characterized in that said sensing means comprise scanning means actuated periodically and forming upon each actuation a binary-coded pulse train representing the condition of said photosensing elements (34).
8. Apparatus according to claim 5, characterized in that the optical system (29) and the grid of photosensing elements (34) are movable jointly in height relative to the drum support (10, 12) and are bound to drive means (y) placing them according to a vertical axis, and in that the means for analyzing (MP) are arranged so as to process control signals capable of acting upon said drive means in order to maintain in the vertical direction at mid height of the grid the line formed in said image by the upper edge of the last complete layer of the winding.
9. The apparatus according to claim 8, characterized in that the means for analyzing (MP) are so arranged that the control signals act upon said drive means (x, y) of the cable-guide (23, 24) and of the drum support (10, 12) relative to the projection means (28, 29) in order to maintain in the center of the grid a point of the image of the silhouette of the winding corresponding to the apex of a re-entrant angle determined by the free edge of the last turn of the upper layer being formed and the upper edge of the last complete layer of the winding.
10. Apparatus according to one or more of the claims 5-9, characterized in that said means for analyzing (MP) are so arranged to process the control signals of a reversal of traversing when the image of the silhouette of said predetermined zone of the winding includes an end of the core of the drum.
11. Apparatus of claim 10, characterized in that it comprises a sensor (49, 50) of the orientation of the drum relative to a reference plane containing the axis of rotation of said drum, and in that the signals of orientation emitted by the said sensor are used in controlling the reversal of traversing.
EP84200844A 1983-06-24 1984-06-13 Device for the automatic control of a traversing operation Expired - Lifetime EP0129926B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84200844T ATE56682T1 (en) 1983-06-24 1984-06-13 DEVICE FOR CONTROLLING A LAYING OPERATION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3466/83 1983-06-24
CH3466/83A CH653654A5 (en) 1983-06-24 1983-06-24 DEVICE FOR AUTOMATICALLY CONTROLLING A SLICING OPERATION.

Publications (3)

Publication Number Publication Date
EP0129926A2 EP0129926A2 (en) 1985-01-02
EP0129926A3 EP0129926A3 (en) 1986-11-26
EP0129926B1 true EP0129926B1 (en) 1990-09-19

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EP84200844A Expired - Lifetime EP0129926B1 (en) 1983-06-24 1984-06-13 Device for the automatic control of a traversing operation

Country Status (7)

Country Link
US (1) US4570875A (en)
EP (1) EP0129926B1 (en)
JP (1) JPS6097168A (en)
AT (1) ATE56682T1 (en)
CH (1) CH653654A5 (en)
DE (1) DE3483221D1 (en)
FI (1) FI76048C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19726285A1 (en) * 1997-06-20 1998-12-24 Siemens Ag Method and device for winding strand-like material to be wound onto a spool
CN109031562A (en) * 2018-09-14 2018-12-18 长飞光纤光缆股份有限公司 A kind of intelligent optical cable cable receives winding displacement auxiliary device and wire arranging method
CN109323764A (en) * 2018-10-22 2019-02-12 江苏盛久变压器有限公司 A kind of testing apparatus of coil
DE102018117687A1 (en) 2018-07-21 2020-01-23 Dr. Brandt Gmbh Device and method for optically monitoring the arrangement of at least one traction device and use

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4655410A (en) * 1985-12-23 1987-04-07 The United States Of America As Represented By The Secretary Of The Army Device for controlling optical fiber lag angle for fiber wound on a bobbin
US4920738A (en) * 1987-03-31 1990-05-01 The Boeing Company Apparatus for winding optical fiber on a bobbin
US4838500A (en) * 1987-06-18 1989-06-13 United States Of America As Represented By The Secretary Of The Army Process and apparatus for controlling winding angle
JPH01203174A (en) * 1987-10-20 1989-08-15 Furukawa Electric Co Ltd:The Winding method of linear member
US4928904A (en) * 1988-10-05 1990-05-29 The Boeing Company Gap, overwind, and lead angle sensor for fiber optic bobbins
US4951889A (en) * 1989-06-12 1990-08-28 Epm Corporation Programmable perfect layer winding system
SE466702B (en) * 1990-02-23 1992-03-23 Maillefer Nokia Holding CONTROL FOR A RINSE MACHINE FOR STRENGTH OF GOODS
US5110065A (en) * 1991-03-14 1992-05-05 Hughes Aircraft Company Bobbin winding control
US5297748A (en) * 1991-08-02 1994-03-29 Hughes Aircraft Company Filament autowinder with fault detection
US5590846A (en) * 1992-07-20 1997-01-07 State Of Israel, Ministry Of Defence, Armament Development Authority System and method for monitoring progress of winding a fiber
IT1257931B (en) * 1992-12-14 1996-02-19 Ceat Cavi Ind Srl CONTROL SYSTEM FOR A WINDING MACHINE FOR ELECTRIC AND SIMILAR CABLES, INCLUDING AN ARTIFICIAL VISION SYSTEM FOR THE CONTROL OF THE STRATIFICATION OF THE COILS, AND PROCEDURE FOR THE CONTROL OF SUCH MACHINE
DE4243595A1 (en) * 1992-12-22 1994-06-23 Mag Masch App Method and device for winding round material onto a spool with end flanges
DE19508051A1 (en) * 1995-02-23 1996-08-29 Hermann Jockisch Coiling elongated material direction change point detection appts.
JP2001063966A (en) * 1999-08-23 2001-03-13 Aramaki Technica:Kk Winder
DE19954072A1 (en) * 1999-11-10 2001-05-17 Siemens Ag Method and device for winding cables on a cable drum
US6442897B1 (en) 2000-07-27 2002-09-03 Wayne-Dalton Corp. Counterbalance system cable drum for sectional doors
EP1896356B1 (en) * 2005-05-27 2011-07-06 Great Stuff, Inc. Reciprocating mechanism for a reel assembly
CN104555622B (en) * 2014-12-29 2017-01-11 大连理工大学 Optical fiber winding machine suitable for manufacturing optical fiber coils with different diameters
ITUB20154968A1 (en) * 2015-10-16 2017-04-16 Danieli Automation Spa MANAGEMENT DEVICE FOR COILER EQUIPMENT AND ITS METHOD
CN105645179A (en) * 2016-01-18 2016-06-08 国家电网公司 Intelligent electric wire winding device
JP6747747B2 (en) * 2017-01-18 2020-08-26 三菱電機株式会社 Winding inspection method and winding inspection device
CN109775443B (en) * 2017-11-10 2022-01-04 苏州凌犀物联网技术有限公司 Initial positioning device and initial positioning method for machine head
CN108689240B (en) * 2018-04-10 2020-06-16 烟台大学 High-precision tension adjustable wiring device capable of effectively reducing sliding friction
BE1026139B1 (en) * 2018-07-25 2019-10-18 Dr Brandt Gmbh Apparatus and method for optically monitoring the arrangement of at least one traction means and use
CN109230831A (en) * 2018-08-24 2019-01-18 郝永范 A kind of wire cable winding-up device
DE102019126699A1 (en) * 2019-08-02 2021-02-04 Liebherr-Components Biberach Gmbh Cable winch and lifting device with such a cable winch
DE102022132168B4 (en) 2021-12-07 2024-01-11 Oerlikon Textile Gmbh & Co. Kg Device and method for winding a melt spun thread
CN116835471B (en) * 2023-08-29 2023-12-05 河南科技学院 Rope disorder preventing device of permanent magnet driving crane with large lifting height

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH576392A5 (en) * 1974-05-02 1976-06-15 Maillefer Sa
AU495293B2 (en) * 1974-08-27 1976-03-04 Sumitomo Electric Industries, Ltd. Automatic cable winding apparatus
US4150801A (en) * 1975-10-30 1979-04-24 Kobe Steel, Ltd. Automatic winding machine for wire-like object
DE3024094A1 (en) * 1980-06-27 1982-01-21 Rosendahl Industrie-Handels AG, Schönenwerd WRAPPING MACHINE FOR WINDING STRAND-SHAPED GOODS ON A REEL
DE3024095A1 (en) * 1980-06-27 1982-01-21 Rosendahl Industrie-Handels AG, Schönenwerd WRAPPING MACHINE FOR WINDING STRAND-SHAPED GOODS ON A REEL

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Fernseh & kino-Technik, Heft 4, 37. Jahrgang *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19726285A1 (en) * 1997-06-20 1998-12-24 Siemens Ag Method and device for winding strand-like material to be wound onto a spool
DE102018117687A1 (en) 2018-07-21 2020-01-23 Dr. Brandt Gmbh Device and method for optically monitoring the arrangement of at least one traction device and use
CN109031562A (en) * 2018-09-14 2018-12-18 长飞光纤光缆股份有限公司 A kind of intelligent optical cable cable receives winding displacement auxiliary device and wire arranging method
CN109323764A (en) * 2018-10-22 2019-02-12 江苏盛久变压器有限公司 A kind of testing apparatus of coil

Also Published As

Publication number Publication date
JPS6097168A (en) 1985-05-30
EP0129926A2 (en) 1985-01-02
EP0129926A3 (en) 1986-11-26
FI76048C (en) 1988-09-09
ATE56682T1 (en) 1990-10-15
FI76048B (en) 1988-05-31
DE3483221D1 (en) 1990-10-25
US4570875A (en) 1986-02-18
FI842501A0 (en) 1984-06-20
FI842501A (en) 1984-12-27
CH653654A5 (en) 1986-01-15
JPH0229580B2 (en) 1990-06-29

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