FR2472532A1 - MACHINE FOR WINDING WIRE ON COILS - Google Patents

Abstract

MACHINE FOR WINDING WIRE AUTOMATICALLY ON SPOOLS 23 IN SUCCESSION, THE FUT OF SAID SPOOLS PRESENTING RADIAL HOLES HOUSED NEAR THE JUGS OF THE SPOOL AND OPENING IN ITS AXIAL BORE, THE SAID MACHINE INCLUDING MOUNTS 9 FOR SPINDING SPOOLS THEIR SHAFT FOR WINDING THE WIRE. IT INCLUDES MEANS 51, 54 FOR BRINGING ONE OF THE HOLES IN THE SHAFT OF THE COIL IN A PREDETERMINED ANGULAR POSITION, MEANS 7, 70 FOR BRINGING THE END OF THE WIRE TO BE COIL IN REGARD TO THE SAID HOLE, AND MEANS FOR INTRODUCING THROUGH THE WIRE HOLE A PREDETERMINED LENGTH OF WIRE FORMING AN INTERNAL EXIT END EXTENDING INTO THE SHAFT OF THE SPOOL AND ALONG THE OUTER FACE OF THE JOINT OF THE SPOOL, THE COOPERATION OF THE HOLE AND THE WIRE INTRODUCED CONSTITUTING THE WIRE HANGING POINT TO THE COIL FOR ITS WINDING.

Description

the subject of the invention is a machine for winding wire or cable on

  coils, for example sheathed electrical wire.

  In cabling, drawing and other installations

  for the manufacture, treatment or use of filiform products, it is frequently necessary to

  these filiform products on coils of various diameters.

  These coils can easily transport the wire from one workstation to another during manufacture, store it in a small volume, and facilitate its subsequent recovery by simple unwinding. The finished products are in particular wound on so-called packaging reels

which are delivered to the users.

  To achieve the minimum size and eliminate the risk of damage by its winding on the coil, the wire is cut on it, that is to say, arranged in turns

  joined in regular layers superimposed on the cylindrical fftt

  drique of the reel. This regular arrangement of the thread is

  mordial so that its subsequent development takes place in the

  better conditions, that is to say freely and without endom-

  sation. In many applications, the length of wire carried by the coil is predetermined. As a result, the outer layer of contiguous turns is, in the majority of cases, not complete, so that the wire, when it is

  hung on one of the cheeks of the reel to avoid

  inadvertently, follows a path in a non-contiguous turn, therefore a step different from that of previous turns, from the end of the incomplete web to the cheek of the coil, introducing an undesirable discontinuity of the arrangement of the thread, and a subsequent release possible

outer turns.

  For certain applications, in particular those where electrically conductive wires or cables are involved, it is necessary for both ends of the wire wound on the coil, said inner end and outer end of the wire relative to the coil, are accessible, in particular to allow tests concerning the electrical characteristics of the wire, the coil being then called at two ends

  out. To facilitate these tests, these two ends must be

  have a certain free length which allows operators to

  connections. Usually, to obtain an outside free end of a certain length, the wire is cut only beyond its point of attachment to the cheek of the coil, so that the

  free end protrudes beyond the perimeter of the cheek, which may

  ver the displacement of the coil by rolling on the slices

  of his cheeks, and exposes the passing thread to degradations.

  To obtain an inner free end, two techniques are currently used:

  The first technique is to dispose of the initial tip

  tial the wire substantially radially along the inner face

  dull of a cheek from the periphery or slice thereof until close to the fit of the reel, leaving a free end of a desired length to extend beyond the

  periphery of the cheek, the winding of the coiled wire

  Then, in successive layers, it is usually done from the point where the thread approaches the fMt of the spool. This way of doing has the disadvantage of leaving the free end protruding from the periphery of the cheek. In addition, the wire placed along the cheek of the coil is an obstacle that must be avoided by deforming the

  wire from each extreme turn of each sheet. This distortion

  Repetitive threading along its length is detrimental to the quality of the yarn, especially when it comes to yarn

  whose electrical characteristics must be very

  such as a coaxial cable. To overcome this inconvenience

  deny, it has been proposed to provide, in the cheek of the coil, a groove adapted to receive the wire so that it no longer protrudes from the surface of the cheek. In addition to the imperatives that it entails for the manufacture of coil cheeks, this solution has the drawback of complicating

  the initial hooking operation of the wire on the coil.

  The second technique is to provide radial holes in the fMt of the coil, close to its cheeks, and to introduce the end of the wire to be wound in

  one of these holes leaving a free end of a length

  it is said to project within the fft or substantially parallel to the outer face of the cheek. This solution is preferred because, thus, this free end does not reach the periphery of the coil, and it provides good conditions for electrical tests. So far, however, it has the disadvantage that it is necessary, before winding, to introduce the wire into the hole of the fMt coil by a manual operation, which entails a significant decline in the

  production speed of packed reels.

  The object of the invention is to eliminate the drawbacks mentioned above and to provide a machine for winding yarn automatically, without manual intervention, on reels succeeding each other on the machine, leaving the machine

  two loose ends, the inner free end

  binds from a radial hole of the fft of the coil, and the outer free end being the extension of the last turn of the coil, without the need to hang this end

  free outside one of the cheeks of the reel, and without deviation

  transverse of said wire at the end of winding.

  Ip. machine according to the invention allows in particular

  to obtain perfectly arranged wire with contiguous turns over-

  a coil leaving two free ends easily accessible

  the wire undergoing no undue hardship because

  its winding and its maintenance.

  The automatic machine according to the invention

  winding of the wire on coils in succession is

  in that it includes means of

  empty coils, means for rotating said bobbin

  around their axis, means of locating a

  dial the coil and hold it in position after

  identification, means for introducing into said hole a length

  predetermined length of wire for forming the tip-out

  internal, means for winding and slicing the wire on the-

  said coil, means for measuring the length of wire

  rolled on the spool and cause the rotation of the spool to stop when the desired length of thread is reached, means for gluing the thread at the end of the winding to the turns

  already wound on the spool at a point constituting the

  of the last thread wound spire, means for cutting the yarn downstream of the bonding point at a distance equal to the length of the desired outer outward end, means for holding the free end of the yarn in the after cut position during drying glue, and ways to

evacuate full coils.

  Other characteristics of the machine according to the invention

  allow it to be used for wire diameters

  and dimensions of various coils.

  An embodiment of a machine according to the invention

  The invention will now be described with reference to the accompanying drawings, in which: FIG. 1 is a front view of a machine according to the invention; FIG. 2 is a side view of the machine of FIG. 1; FIG. 3 is a sectional view of a spool packed with wire with two free ends pulled out; FIG. 4 is a perspective view of the loading station of the machine according to FIG. 1; FIG. 5 is a perspective view of the cutting and cutting station of the machine according to the invention as well as

  than ancillary devices arranged upstream of the

  said post; FIG. 2A and 3 is a view of the ladder device of the tran- soming device; FIG. 7 is a schematic view of the device for locating the radial hole of a coil; FIG. 8 is a schematic view of a part of the slicing device; and FIG. 9 is a schematic view of a part of the slicing station in an alternative embodiment of a

machine according to the invention.

LI

  The machine according to the invention comprises a frame 1 (FIG.

  1) formed by a horizontal base portion 2 and a vertical plate 3. Through this plate 3, is pivotally mounted a horizontal shaft 4 controlled by a motor 5, and carrying at its end 6 a circular plate 7 parallel to the plate 3. The axis 8 of the shaft 4- is the axis of symmetry of the

  plateau 7 which can be driven in rotation by the shaft 4.

  The plate 7 carries in its peripheral zone four shafts 9 door-wheels mounted to rotate parallel to the axis 8 of the

  plateau, these trees 9 being equidistant from the center of the

  water and being angularly shifted by 900 relative to

  the other. Between each pair of shafts 9, a shaft 10 is

  rotated in the tray and protruding on either side thereof, these shafts 10 being equidistant from the center of the plate and being angularly offset by 900, one per

  report to the other. The shafts 10 are parallel to the axis 8.

  At the end 11 of each shaft 10 is fixedly mounted an arm 12, perpendicular to the shaft 10, carrying at its distal end

  13 of a shoe 14 perpendicular to the arm 12 and thus parallel

  aligns with the axis of rotation 8 of the turntable 7. At its other

  end 15, that is to say the end located between the

  rotating plate 7 and the frame plate 3, the shaft 10 carries a

  tongue 16, radial, substantially parallel to the arm 12.

  Between this tongue 16 and the turntable 7, the shaft 10

has a cam disk 17.

  Each shaft 9 reel holder protrudes from both sides

  7. The end of the shaft portion 9, located in

  The other part 19, located on the other side of the turntable 7, forms a tip or sleeve 20 suitable for being introduced into the bore. 21 of fft 22 of a coil 23 (Figure 3) cheeks 24 and 25, said fMt 22 having radial holes 26, 27 formed near the inner face

  cheeks 24, 25, respectively, and opening into the

sage 21 from Mt.

  the spool point 20 has a free end 28 of hemispherical shape and it carries, in its central zone, radial and eccentric pins 29 which protrude from

  the diameter of the tip 20, being solicited by

  spells, not shown, arranged inside the tip

  20. These lugs 29 can be retracted by means of a trin-

  glerie, not shown, arranged longitudinally in a bore of the shaft 9 and can be ordered from

  the end of this shaft 9, in the region of the half-clutch 18.

  Thanks to the motor 5, the turntable 7 and the means it carries can be rotated step by step 900, displacing

  thus successively each shaft 9 reel holder of a first

  first position I called "loading" to a second position II called "winding" then to a third position III called "drying" and finally to a fourth position called IV

"unloading".

  In position I, or loading station, the half

  clutch 18 carried by the shaft 9 is opposite a half-clutch 30 carried by the end of a shaft 31 mounted

  rotating in the plate 3 of the frame, parallel to the axis 8.

    at its other end, this shaft 31 carries a pulley or

  a grinding 32 entralné by means of a belt or chain 33 controlled by the pinion 34 of a motor 35. A rod 36 is slidably mounted in a longitudinal bore of the shaft 31, the projection relative to the half-clutch 30 of the rod 36

  being able to control the retraction linkage of the er-

  gots 29 carried by point 20, the end of this trin-

  glerie being opposite, when the shaft 9 is at the loading station, the end of the rod 36. the rod 36 can perform a back and forth relative to the shaft 31 by means of a jack 37 placed in the extension

  of the rod 36, beyond the pulley or gear 32.

  The base 2 of the frame 1 carries a chair 38 (FIG. 4)

  comprising angles 39, 40 forming a rolling path

  on which are arranged, one behind the other, empty coils 23 to be loaded. the raceway 41 formed by the angles is inclined, so that the coils, by gravity, are in abutment against each other, the first of these being stopped by a portion of the chair 38 forming a stop 42 in a position where its axis 42 is the extension of the axis 44 of the spool pin 20 in the position I of loading. The chair 38 and the tread 41 are parallel to the plate 3 of the b9ti and are placed at such a distance from this plate that the first spool 45 carried by the chair is in position.

  loading position in the immediate vicinity of the

  28 of the tip 20. On the other side of the chair 38, in the axis of the tip 20, is a jack 46 provided with a

  disc 47 at its active end near the coil in position

  Specific to the loading on the chair 38. the bracket 40 of the chair 38 is interrupted near the stop 42, so as to allow a longitudinal movement of the coil

along the axis 44.

  The vertical face 48 of the chair 38 situated on the side of the turntable 7 carries a square 49 (FIGS. 4 and 7).

  rotatably mounted on an axis 50 parallel to the axis 8 of the

  rotating water. the oscillation of this square 49 is controlled

  by a cylinder 51 mounted oscillating about a fixed axis 52

  secured to the chair 38 and parallel to the axis S. The end

  53 of the bracket 49 carries a needle 54 disposed in the plane of the bracket 49 and on the side thereof which is opposite the cylinder 51. Under the action of the cylinder 51, the needle 54 makes a movement oscillating in a plane perpendicular to the axis 44 of the reel shaft 9e When the cylinder 51 is retracted, the needle 54 comes into contact with a point 55 of the periphery of the tip 20, in the end zone of the latter, to each spool shaft 9 corresponds a set 56 constituted, as described above, by a shaft 10, a

  arm 12, a shoe 14, a cam disc 17 and a tongue 16.

  This assembly 56 can pivot from a position 57 (FIG. 1), where the arm 12 is substantially radial relative to the turntable 7 so as to be disengaged from the cheeks of the reel, at a position 58 in which the pad 14 is applied. against a generator 59 of the shaft of a spool 23 fitted

  on the tip 20. An unrepresented spring requests the

  56 appears towards this latter position, where the shoe 14 is in contact with the fftt of the coil. When the spool shaft 9 is in the loading position, the cam 17 of the shaft 10 is in contact with a plate 372 disposed in the extension of a ramp 172 secured to the frame of the machine and whose

  junction will be explained later. My plate 372 is moving

  connected to the frame by means of a jack 61 with a shank 60.

  Under the action of the jack 61, the plate 372 is force-applied against the cam 17 which is designed so as to cause the rotation of the shaft 10 and the eclipse of the slider.

brake 14 relative to the coil.

  When the plate 372 is retracted by the play of the jack 61, the cam 17 is released and the spring of the assembly 56

  reminiscent of the pad 14 against the barrel of the coil.

  At the loading station, the jack 61 thus makes it possible, thanks to the cam 17 and to the plate 372, to move the brake pad 14 from an eclipsed position to an applied position.

against the fftt of the coil.

  In the position II, called "wire winding", a spool carried by a shaft 9 is close to a device

  70. In this heading II, axis 44 of Ar-

  9 is an extension of the axis 71 of a tree 72

  in the plate 3 of the machine frame, the half

  clutch 18 of the shaft 9 lying next to a half

  clutch 73 carried by the end of the shaft 72, the latter carrying at its other end a pulley or gear 74

  controlled by a belt or chain 75 entratnée by the pi-

  gnon 77 of a motor 76. By cooperation of the half-clutches

  18 and 73, the spool shaft 9 (Figure 5) can be

  dragged in rotation by the engine 76.

  The trimming device 70 comprises a frame 79

  rigid, equipped with articulated feet 80 and 81 (Figure 1) by

  which it is connected to a support plate 82 fixed to the plate

  3 of the frame of the machine, the plate 82 being parallel to the

  base 2 of the machine. Thanks to the joints of the feet 80, 81, the frame 79, the feet 80 and 81, and the support plate 82 form a deformable parallelogram which allows the frame of

  trancanage 79 to be moved parallel to the turntable

  7 This movement is controlled by a jack 83 fixed to the frame 1 at a point 84. In FIG. 1, the slicing device 70 carried by its frame 79 is represented in the distant position

of the tree 9.

  Trestle frame 79 is equipped with two guide rods 85 and 86 smooth, on which slides a slicing plate 87, through holes 88 and 89 formed in the plate. Parallel to the guide rods is disposed a threaded rod 90 cooperating with a nut 91 secured to the plate 87, the rotation of the threaded rod 90 driven to the

  by means of a belt 92 by a motor 93 which causes

  known the movement of the sledge plate 87

  parallel to itself along the slides 86 and 85.

  reversing the direction of rotation of the motor 93 controls the in-

  version of the direction of travel of the cutting plate 87.

  A counterplate 94 for cutting is attached to the plate 87

  by screws 95. This against plate 94 carries a parallel axis 96

  leash to the rods 85, 86 and having at its end a

  97 rotates, grooved 98, and a tubular wire guide 99 rotatably mounted on the axis 96 in the plane of the pulley 97, by means of two lugs 100, 101, disposed on either side of the pulley 97 The shape of the ears 100 and 101 is such

  that the axis of the wire guide 99 is substantially tangential to the groove

  ge 98. As seen in Figure 8, the wire guide 99, biased if necessary by a spring, not shown, to its horizontal position, can rotate about the axis 96 and thus take various angular positions. Near

  of the groove 98, the end 102 of the thread guide 99 is beveled

  in order to be close to the portion of the

  pie of the pulley 97 facing him. On the other side of

  point of tangency of the axis 103 of the wire guide 99 with the po-

  97, is arranged a wire guide tube 104 fixedly attached to the plate 94. At a certain distance behind the tube 104 and on the same axis 103 is fixed to the plate 94 a second guide-wire tube 105, itself same tracking 103, on the same axis 103, of a device 106 with parallel vertical rotary fingers 107 and 108, and horizontal device 108 ', the device 106 being attached to the

plate 87.

  A set or capstan 109 is attached to the trestle frame

  79, in the end zone of the bars 85, 86 for guiding the slicing plate 87. This assembly 109 comprises

  a smooth rod 110, mounted in bearings 111 and 112

  of the frame 79, the rotation of the rod 110 can be controlled by a motor 113 by means of a belt 114 and a pulley 115. On the smooth rod 110 is rotatably mounted a semicircular plate 116 and on its periphery of the teeth 117. To the plate 116 is fixed a radial arm 118 carrying at its end a pulley 119 free in rotation and

  controlled by a small pulley 120 which it is solidary.

  my pulley 120 is driven by a belt 121 which cooperates on the other hand with a pulley 122 fixed to the rod 110. From the toothed plate 116 radially depends a tongue 123 pivotally connected to the end of the rod 124 of a jack 125. The cylinder 125 is pivotally mounted to the frame 79. The teeth 117 of the plate 116 cooperate with the teeth 126 of a semicircular plate 127 arranged in the same plane as the plate.

  116. The plate 127 is secured to an axis 128 movable in rotation.

  In a bearing 129 integral with the frame 79. The plate 127 also depends on an arm 130 of length equal to that of the arm 118, and at the end of which is placed a pulley 131 free in rotation and parallel to the pulley 119. the play of the cylinder 125 and the engagement of the teeth 117 and 126, the arms 118 and 130 may be brought together or removed in their common plane symmetrically in the manner of scissors, the pulleys 119 and 131 being able to come into contact with the one of the other

  by a point of their periphery 132, 133, respectively.

  When the cylinder 125 is inoperative, the pulleys 119 and 131

  kept away by the play of a spring

on the plate 127.

  Above the slicing device which has just been described, is arranged a slide 135 (FIGS. 2 and 5) fixed cantilevered to the plate 3 of the chassis in parallel.

  to the rods 85 and 86 for guiding the trenches. On this slide

  is slidably mounted a crew 136 biased towards the free end of the slide 135 by a spring 137. A return cylinder 138, with an axis parallel to the slide -135, is disposed below the slide, its rod, carrying an end stop 139, sliding in an eyelet secured to

  the crew 136. The cylinder 138 is fixed in position relative to

  135. When the cylinder rod 138 is

  pulled, its end 139 abuts against the periphery of the eyelet and brings the crew 136, against the force of the spring 137, in the position shown in Figure 2. If the rod of the cylinder 138 is out completely, the crew 136 is free to move on the slide 135 under the bias of the spring 137. The crew 136 is thus translated until its lower part 140 abuts against the slicing plate 87, which whatever the position of the latter on its guide rods, 86. In this way, the crew 136 is automatically positioned above the cutting plate 87, On 1'quipage 136 is mounted a shear device 141 whose blades are directed downwards and positioned so as to exactly overlie the axis 103 of the wire guide 99, beyond its free end 142, the diameter of the wire guide corresponding to that of the treated wire. With a jack 143, the shear 141 can be raised or lowered. the cutting movement of the shears 141 is controlled by an electromechanical device 144. In addition to the shears, the crew 136 carries a glue discharge tubing 145 connected to a not shown glue tank. the tubing 145 being attached to the body

  of the shears, it is lowered or lifted by the jack 143.

  When the crew 136 is abutting against the tran-

  87, the cutting axis of the shear 141 and the end of the tubing 145 are located in the plane of the guide wire 99

and the pulley 97.

  When a spool shaft 9 is in the position II of winding of the thread, the tongue 16, carried by the shaft 10 controlling the shoe 14 associated with said shaft 9, is opposite 1 1

  of the rod 150 of a cylinder 151 fixed to the frame of the machine.

  When the rod 150 is raised relative to the cylinder 151, its end 152 comes into contact with the tongue and causes, by leverage, the rotation of the shaft 10, against the force of the return spring who equips it, and

  this results in the distance of the pad 14 from the armature

bre 9.

  Upstream of the cutting assembly and substantially in the extension of the axis 103 of the wire guides 104 and 105, are arranged one behind the other: - a counter 153 for the wire length unwound, pulley 154 ; - A loop forming device consisting of two rotary pulleys 155 and 156 spaced apart from each other between which is moved a rotary pulley 157 by a cylinder 158, the three pulleys being in the same plane; a selectively controllable wire brake 159; a non-return brake 160;

  a wire accumulator 161 with a guide pulley

  trea 162 and output guide pulley 163, with a fixed crew member 164 and a moving assembly 165; and

  a wire supplier device, not shown.

  In an alternative embodiment, advantageous in particular

  special for relatively fine wire winding at station 2

  the winding of the wire is additionally associated with a

  (FIG. 9) constituted by a jack 166 fixed by means of

  port to the frame of the machine, whose axis 167 is placed in the extension of the axis of the shaft 9 and the spool of which the end of the rod 168 carries a piece 169 sliding under the action of the cylinder in the extension of the spool pin 20 and mobile in rotation. This piece 169 can be applied by the jack 166 against the hemispherical tip 28 of the tip and thus wedge a wire 170 disposed between

this piece and the tip.

  the speed of the movement back and forth of the device

  is adjusted according to the rotation speed

  tion of the spool shaft 9, and this by means of an account

  1 2 turns 171 fixed at the end of the shaft 72, this tachometer being advantageously an electro-optical revolution counter comprising a perforated circular disc secured to the shaft 72 and a

  electro-optical pulse counter. the speed of cutting

  the number of pulses produced by the tachometer, this speed can easily be adjusted

  function of the desired pitch for winding the wire,

  simply wearing perforated disc, each perforated disc

  having a different number of perforations. For a roll-up

  With contiguous turns, the slicing pitch is equal to the diameter of the thread being treated. Between the post III called "glue drying" and the IV station called "unloading", is placed a belt 272 attached to the frame 1, adapted to come into contact with a washer 173 attached to the shaft 9 between the tray rotating and the half-clutch 18. During the rotation of the turntable 7, the washer 173, during the displacement

  the spool shaft from position III to position IV comes

  on the belt 272, which prevents rotation of the spool about its axis relative to the frame 3 and thus

  keep the outer end of the wire in the same position

  during the transfer from III to IV. A ramp 172 is fixed to the body 1 so as to cooperate with

  with the cam disk 17 carried by the shaft 10, to provoke

  the rotation of the shaft 10 and the distance of the pad 14 relative to the shaft 9, as soon as the movement of the reel holder 9 from position III to position IV begins. The arm 12 shoe-holder is thus kept overshadowed by the ramp 172 until the shaft 9 with which it is associated has returned to

  the loading position I of a new empty reel.

  As mentioned above, the end 372 of the ramp 172 is itself eclipsable by the jack 61 to allow the shoe 14 to come into bearing position against the spool shaft 9

  when it was again filled with an empty reel.

  In the vicinity of the reel shaft 9, when it is in the so-called unloading position IV, there are arranged

  means for evacuating the full bobbins comprising in particular

  extracting means, not shown, suitable for

  subtract a full reel from its engagement on the carrier

  coil and to deposit the said full coil on an evacuation ramp.

  cuation 180 inclined. the removed full coils roll

  by gravity on said ramp 180. Behind the turntable

  and in the extension of the axis of the spool shaft 9 are arranged cylinder means similar to those which have

  have been described for item I and suitable for provoking action

  the retraction linkage of the pins 29 which

protrusion with respect to the sleeve 19.

  the operation of the machine according to the invention will now be explained by describing, on the one hand, the path of the wire to be wound and, on the other hand, the path of a coil from the upstream of the loading station to the downstream of the

unloading station.

  Wire 200 (Figure 5), from a substation

* flow not shown, is arranged successively in the accu-

  wire emulator 161, anti-return 160, controllable brake

  159, the loop forming device 201, the hour counter

  153, then is introduced into the wire guide device 106, the wire guide tube 105, the wire guide tube 104 and finally the wire guide tube 99. end of the wire comes flush

the end 142 of the thread guide 99.

  After rolling between the angles 39 and 40 of the face 38, a coil 45 is in the extension of the spool shaft 9, in the loading position I. Thanks to the

  cylinder 36, the lugs 29 are retracted into the sleeve

  coil 19. By the cylinder 46 and its plate 47, the coil 45

  is pushed towards the point 20 which is housed in the

  wise 21 of the coil. The coil 45 having been moved away from the chair 38, a next coil comes to put itself in position

loading.

  After reverse action of the cylinder 37, the lugs 29 are released and are forcefully applied, thanks to the springs of the linkage, against the bore 21 of the coil, blocking the latter in position on the tip 20. The motor 35

  is then excited and he commands, via the two half-clutch

  18 and 30, the slow rotation of the spool shaft

- - 1- - - -. 1 -

  as the needle 54 of the bracket 49 is pressed against the outer face of the fMrt 22 of the coil, by retraction of the cylinder 51. the position of the bracket 49 is such that the needle 54 is in the same plane as the holes 26 presented by the fMt coil, that is to say, a substantially tangent plane

  to the inner face of the cheek 24 of the reel. After maxi-

  mum one turn of the shaft 9, the needle 54 is dropped into a hole 26 and prevent further rotation of the

  coil. the position of the hole 26 is thus identified. employ-

  clutch 18, 30 is of the sliding type, that is to say that the rotation

  The rotation of the shaft 9 stops when the needle is inserted into the hole 26, even though the shaft 31 continues to be driven by the motor 35. After a predetermined time, the motor 35 is stopped. The hole 26 being located, the cylinder 61 controlling the arm 12 pad holder 14 is retracted and the pad 14 is pressed against a generatrix of the drum of the coil under the force of the spring which controls the shaft 10. the coil being

  thus locked in angular position by the pad, the pointer

  water 54 is eclipsed by the reverse action of the cylinder 51.

  The motor 5 is excited and controls the rotation of the turntable 7 900 in the trigonometric direction in the figure to bring the shaft 9 and the coil it carries to the position II called "dte = ou-lement". In this position II, the angular position 210 of the hole 26 is known, the coil having been held relative to the turntable by the pad 14. The cutting plate 87 and the elements that it carries are displaced by rotation of the motor 93 entralnant the translation screw 90, to the end position of the wire guide 99 is substantially in the plane tangential to the inner face of the cheek 24 of the coil, and thereby in the plane of the hole 26 of the drum. In this extreme position, the pulleys 119 and 131 of the capstan 109 are on either side of the

  part of wire left free between the son-guides 104 and 105.

  The wire brake 159 is tight. The cylinder 83 is put in

  which brings about the bringing together of the entire

  70 of the axis of the coil, by the play of the joints

16 2472532

  feet 80 and 81. The advance on the rods 80 and 81 of the cutting table causes the end of the end of the wire into the guide wire 99, which has the effect of rounding the end and resorber the loop formed during the return in horizontal position of the wire guide 99. In this close position, the wire guide 99, biased by spring, is in the axis of the wire guide 104, and the movement of the set of slicing 70 controlled by the cylinder 83 is provided so that the end 142 of the wire guide 99 comes to be placed exactly in front and near the hole 26 of the fû.t of the coil. The jack 125 controls the bringing together of the pulleys 119 and 131 of the capstan 109. said pulleys come to press the thread

  in its portion between the son-guides 104 and 105.

  The ram 158 of the loop forming device 201 is retracted, which releases a previously formed loop, the length of said loop being equal to the length of the desired free inner free end for the wire wound on the coil increased by the length of the loop. thread resorbed during the advance of the cutting table. the motor 113 is energized, which controls the rotation of the pulley 119 of the capstan 109. This rotation causes the advancement of the wire in the wire guide 99 to

  exhaustion of the slack formed by the handle released by the disc

  201. The desired length of wire is thus introduced.

  the free end thus formed penetrating into the bore 21 of the spool and being deflected out of the spool by the thread guide 99 into the hole 26 of the spool.

  the hemispherical end 28 of the tip 20 of the reel holder.

  In the variant embodiment shown in FIG.

  9 and that it is advantageous to use for fine threads, at the end of the process of introducing the thread into the hole of the spool, the jack 166 is actuated and the piece 169 comes

  wedge the wire 170 against the tip 20. Thanks to this

  caution, it ensures the securing of the wire to the coil and its beginning of winding without slipping in the hole 26 when the coil is driven in rotation. After the beginning of the winding, the cylinder 166 is retracted. If the wire wound

  is sufficiently rigid, this precaution is not necessary.

17 2472532

  because the wire gets stuck enough in the

  hole 26 to allow the beginning of the winding.

  At the end of this process of introducing the thread into

  the hole in the spool, the cylinder 125 is retracted, which

  It removes the pulleys 119 and 131. The rod 150 of the jack 151 is pulled out and moves the pad 14 away from the bobbin by acting on the tongue 16 of the shaft 10. The controllable brake 159 is reloaded. the coil can then be rotated. The motor 76 is excited, controlling the

  rotation of the coil through the cooperation of the half-

  clutches 18 and 73. Simultaneously, the retraction of the cylinder rod 83 causes the retraction of the cutting table. The slicing is carried out in the usual way according to the speed of rotation of the coil detected by the device

  171. The winding of the yarn continues until the length

  predetermined amount to be wound is detected by the counter 153. During winding of the wire, a new

  handle is formed by the device 201.

  A slowing down of the winding speed,

  by a preselection according to the desired length of yarn, then a slow walk makes it possible to obtain a length

  exact thread. During the slowdown the

  of the rod of the cylinder 138, which frees the crew 136

  which is automatically positioned by the game of

  fate 137 and the abutment of the crew portion 140 against the sledge plate 87, above the wire guide 99. When

  the exact length of the desired yarn is wound on the bobbin

  bine, the motor 76, after a deceleration phase, is stopped, which results in the stop tramping. The moving part of the crew 136 is lowered by the action of the cylinder 143, the shear 141 straddles the wire between its exit from the wire guide 99 and its point of contact with the underlying coil ply, and the tubing 145 of glue deposit is placed above the wire between said point of

contact and the wire guide 99.

  A dot of glue is deposited by the tubing 145 on the wire, then the motor 76 is excited to cause the

182472532

  low-speed rotation of the spool on which the yarn is wound up to the desired length of yarn for the outer free end, this length being measured by a

  counter. The point of glue carried by the thread is thus applied

  against the adjacent turns, making the attachment of the outer free end. The rod 150 of the cylinder 151 is retracted and the arm 12, under the action of its spring, comes to apply the pad 14 against the upper sheet of wire wound on the coil. the shoe firmly holds the last turns of wound wire, especially the last bearing the glue, coming to apply beyond the point of glue. The shears 141

  is pressed to cut the thread. The guide wire 99 which,

  the winding, is oriented, by virtue of its pivotally attachment to the axis 76, towards the point of instantaneous tangency of the wire on the preceding wire sheet, returns to its position

  resting where it is in extension of the son-guides 104 and 105.

  At this moment, a loop is formed near the pulley 97:

  the advance of the cutting table during the subsequent operation.

  better to eliminate it. After the cut, the moving part of the crew 136 is brought upwards by the jack 143 and the crew 136 itself is brought back to its position.

  rest by the retraction of the cylinder rod 138 whose end

  mid-tee 139 stops against the eyelet of the crew 136. During this

  time, the slicing plate 87 is brought back by

  motor 93 in its initial extreme position, close to

  Finally, the half-clutches 18 and 73

are released from each other.

  The motor 5 controls the rotation of 90 of the turntable, which brings the packed spool to the so-called drying position III, where the thread is held on the spool by the pad 14. The winding operation of the thread on the spool being the longest of the four loading, winding, drying and unloading operations, it is the end of the winding operation at station II, described above, which

  controls the rotation of a quarter turn of the turntable.

  at the end of the winding operation of the next spool, the turntable rotates again 900 under the action of the motor 5 to bring the full spool of the

  drying position III at the unloading position IV.

  During this movement of the plate 7, the cam disk 17 of the

  10 comes into contact with the ramp 172, which causes the lifting of the pad 14 and thus the release of the rotation of the coil. Following this release operation, the washer 173 carried by the shaft 9 comes into contact with the belt 272, which causes rotation of the coil by rolling the washer 173 on the belt 272. The length of the belt 272 and the diameter of the washer 173 are provided so that, when the full coil reaches the unloading position IV, the external free end 190 of the coil is in the upper part of said coil so as not to hinder the operations of unloading that are going to be

described.

  At the unloading station IV, the means with cylinders pre-

  seen in the extension of the shaft 9 are operated for

  cause the retraction of the lugs 29 and, thus, the release

  the coil. the coil is drawn longitudinally out of engagement on the tip 20 and is deposited on the

  inclined ramp 180 on which it is evacuated by rolling

  is lying. During the passage of the shaft 9 reel holder of the post

  IV at station I, pad 14 is kept overshadowed by cooperation

  of the cam disk 17 with the ramp 172. At the station 1, this eclipsed position is maintained by the jack 61 until a new empty coil is put in place and after

  the loading operations described above are

lisées.

  In order to allow the winding of diameters

  different on coils of different sizes,

  Some parts of the machine which has just been described are adjustable in position or interchangeable. This is the case in particular of plywood plates 94 which can be chosen as a function of the diameter of the wire guides 99, 104 and 105,

  these diameters must be adapted to the diameter of the treated thread.

  We have seen above that the speed of slicing was adjustable

2472532

  thanks to the tachometer 171, this cutting speed to be calculated from the diameter of the wire. The length of the inner free end can be adjusted by adjusting the stroke of the cylinder 158 of the loop forming device 201. The length of wound wire is adjustable from the counter 153. Depending on the dimensions of the coils used, the arm 12 is provided. a brake pad 14 of length substantially equal to the width of the coils. Depending on the diameter of the

  treated thread, the extreme position of the

  positive way of slicing so that the wire guide 99, in

  this extreme position, ie in a substantially

  to the outer cheek of the reel. The various engines

  equipping the machine are of the variable speed type.

  Thanks to the machine which has just been described, the aim pursued by the invention, that is to say the

  supply of coils with wire arranged in coils joined

  and successive layers, and having two free ends out, one by a radial hole presented by the fMt of the coil, and the other in the extension of the last turn of the last sheet, without requiring fixing said wire to one of the cheeks of the reel and without changing the pitch of the winding to its end. Thanks to the collage of the thread at the end of

  the coil, the coil obtained is of a very clear appearance and-

  the wire is not subjected to excessive stresses. The electrical tests of the wire are easily done by connecting the two free ends and the unwinding of the wire can be done

  after simple takeoff by tearing of the point of glue.

21 2472532

Claims (22)

  1. A machine for winding yarn automatically on reels in succession, the fMt of said reels having radial holes formed close to the cheeks of the reel and opening into its axial bore, said machine comprising means for rotating the reels around their axis for winding the wire, characterized in that tail comprises means for bringing one of the fat holes of the coil into a predetermined angular position, means for bringing the end of the wire to be wound next to said hole , and means for introducing through said hole a predetermined length of wire forming an inner exit tip extending into the barrel of the coil and / or along the outer face of the cheek of the coil, the cooperation of the hole and the introduced thread constituting the point of attachment of the thread to the coil for its winding.   2. Machine according to claim 1, characterized in   it includes a turntable with rotating tips   reel holder, said tray bringing the spikes   coil successively of a loading station, where the bobbin   are placed by automatic means on the spool pins and near which are placed the means for determining the angular position of the hole fft of the coil, at a winding station of the wire, means carried by the tray for maintain the angular position of the coil relative to the plate, and means arranged near the winding station to bring a device for feeding and guiding the wire, and thus the end of the wire that it contains, facing the hole of the fMt of the coil and   to introduce a predetermined length of wire.   3. Machine according to claim 2, characterized in that the device for feeding and guiding the wire comprises   slicing means for storing the yarn in successive layers;   adjacent turns on the coil when the latter is rotated by the rotation means of the winding station.   4. Machine according to any one of the claims 22 2472532   preceding, characterized in that it further comprises means for measuring the length of wire wound on the coil and cause the stop of its rotation when the desired length of wire is reached, means for bonding the wire at the end of coil winding already wound on the coil at a point constituting the end of the last contiguous turn of wire, means for cutting the wire downstream of the bonding point at a distance equal to the length of a desired outer exit tip, means to maintain the   free end of the wire in position after cutting during the   age of the glue and means for discharging the coils   thereby providing coils carrying wound wire with contiguous turns without transverse deflection of said wire into   end of winding and having a free inner end de-   plugging into one of the fft holes of the spool and a free outer end continuously extending the last turn of the winding of the wire.   5. Machine according to any one of the claims   precedents, characterized in that the means for determining   the angular position of one of the holes of the fft of the spool carried by a spike at the loading station comprises a square oscillating in the plane of said holes under the action of a jack to bring a needle with its end in contact with the fft of the coil, means being provided for   rotate the coil until the said   in said one-hole position, said needle then blocking the coil in said predetermined angular position, means with eclipsable pads mounted on the turntable against the spool fMt to maintain the spool in the predetermined angular position relative to the spool. on the plateau.   6. Machine according to any one of the claims   2 to 5, characterized in that at the loading station, the spool pin tip is rotatable by an electric motor by means of two half-clutches facing each other, one being carried by the rotatably mounted spool pin in the turntable and the other by a tree, ordered 232472532   by the motor, rotatably mounted in the frame of the machine.   7. Machine according to claim 6, characterized in that at the winding station, the rotation of the coil is controllable by an electric motor by means of a shaft rotatably mounted in the frame of the machine and carrying a half -clutch that faces the half-clutch carried by the spool pin.   8. Machine according to any one of the claims   preceding, characterized in that at winding station is   associated with a slicing device whose speed   is controlled by the speed of rotation of the spool pin, the cutting device comprising a wire guide mounted oscillating on a cutting plate, said wire guide having the shape of a tube directed towards the spool. winding position.   9. Iachine according to any one of the claims   to 8, characterized in that the cutting device is mounted movable in translation relative to the frame of the machine so as to be brought close to a block of the coil-in the winding position to put the end of the guide- wire opposite the fft hole of the coil in position determined prior to the loading station and maintained   in angular position by the holding means.   Machine according to any one of the claims   3 to 9, characterized in that in its extreme position the   slicing plate just place the wire, upstream of the guide-   wire, in the area of action of a motor-controlled capstan to introduce, through the wire guide, a predetermined length of wire into the hole of the: Mt of the coil to form an inner free end extending outlet in the   fft from the reel or along his cheek.   11. Machine according to any one of the claims   3 to 10, characterized in that in cooperation with the wire,   upstream of the slicing device, are arranged succes-   a wound wire counter, an eccentric shackle shaping device, a controllable wire brake, a brake   back-up, a battery accumulator and a device wire feeder. 247-72532   Machine according to any one of the claims   3 to 11, characterized in that at the winding station are associated means for eclipsing the holding means in angular position of the coil.   Machine according to any one of the claims   preceding, characterized in that the means for maintaining the coil in the angular position are constituted by a pad coming against the fmt of the coil or against the last layer of wire wound.   Machine according to any one of the claims   3 to 13, characterized in that at the winding station are   associated slidably mounted means on a slide parallel to the spool pin, these means comprising a   cutter and clean tubing to cut   put a point of glue on the wire, and can move under the action of a spring so as to come up against   the slicing plate regardless of its position, the   and the tubing thus overhanging the wire being   bearing, tubing and shears can be lowered to the wire by means of a jack, the deposition of a point of glue   on the yarn and the cutting of the yarn by the shears being   dables from the length of wire wound on the reel.   15. Machine according to any one of the claims   4 to 14, characterized in that the means for depositing the   glue on the wire are actuated when the wire length sou-   The coil is rotated after removal of the adhesive point and the cutting means is actuated after winding a length of thread corresponding to the length of the end.   outside free space desired for the spool, the hand pad   in position being applied against the outer ply of wire wound after the ultimate rotation of the spool and before the cut.   Machine according to any one of the claims   It has 15, characterized in that the length of the loop formed by the retractable bail forming device is equal to the desired length for the free inner end, increased 2472532   the length of thread absorbed during the advance of the table   the control brake arranged upstream of the   positive shaker trainer being controlled while the shackle   is released, and that the coil is rotated.   17. Machine according to any one of the claims   4-16, characterized in that it includes means for   close to cooperating with the spool pin to make   additionally the coil during its transport   by the turntable of the drying station at the   loading, so as to place the outer free end   protruding beyond the perimeter of the coil into a posi-   which does not interfere with the extraction of the reel at the unloading station.   18. Machine according to any one of the claims   2 to 17, characterized in that a ramp fixed to the frame of the   machine close to the turntable is clean enough to provoke   to maintain and maintain the support means of the support slider   in the angular position of the coil, in the position eclipsed during   the rotation of the plate bringing the spool pin of the drying station to the unloading station and then to the loading station.   19. Machine according to any one of the claims   2 to 18, characterized in that the spool pins and   the sliders are adjustable in position and / or   terchangeables to allow the processing of coils of different dimensions.   Machine according to any one of the claims   3 to 19, characterized in that the wire guides of the cutting device are interchangeable as a function of the diameter of the wire to be wound, and in that the winding speeds of the wire and / or the trench are adjustable according to said diameter, the speed of slicing being controlled by the winding speed.   Machine according to any one of the claims   2 to 20, characterized in that at the reel point at the winding station is associated a device with a cylinder adapted to wedge the wire introduced through the hole of the fMt of the reel. 2472532 against the end of the tip.   22. Machine according to any one of the claims   previous, characterized in that the spike points are equipped with eccentric radial pins protruded by springs, adapted to maintain the coils on the spikes and to release them.