EP0130096B1 - Apparatus for producing shirt cuffs - Google Patents

Apparatus for producing shirt cuffs Download PDF

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Publication number
EP0130096B1
EP0130096B1 EP84401048A EP84401048A EP0130096B1 EP 0130096 B1 EP0130096 B1 EP 0130096B1 EP 84401048 A EP84401048 A EP 84401048A EP 84401048 A EP84401048 A EP 84401048A EP 0130096 B1 EP0130096 B1 EP 0130096B1
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EP
European Patent Office
Prior art keywords
cuff
fact
installation according
tray
machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84401048A
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German (de)
French (fr)
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EP0130096A2 (en
EP0130096A3 (en
Inventor
Bernard Cordier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fives Cail Babcock SA
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Fives Cail Babcock SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Fives Cail Babcock SA filed Critical Fives Cail Babcock SA
Priority to AT84401048T priority Critical patent/ATE30206T1/en
Publication of EP0130096A2 publication Critical patent/EP0130096A2/en
Publication of EP0130096A3 publication Critical patent/EP0130096A3/en
Application granted granted Critical
Publication of EP0130096B1 publication Critical patent/EP0130096B1/en
Expired legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
    • A41H42/00—Multi-step production lines for making clothes
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B25/00—Sewing units consisting of combinations of several sewing machines

Definitions

  • the subject of the present invention is an installation for manufacturing shirt cuffs comprising a stitching machine, a machine for making the buttonhole, a machine for sewing the button on the wrist, means for bringing the wrist to the stitching machine, means for positioning at least one of the ends of the wrist relative to at least one of the working heads of the buttonhole machine and of the button sewing machine, said heads being arranged opposite one on the other, means for bringing the wrist under said heads while maintaining them in the correct position and means for moving the wrist away from the buttonhole and button sewing machines.
  • document US-A-2 985 112 describes an installation comprising a button sewing machine and a buttonhole machine, the working heads of which are arranged opposite one another, and a device for bring the wrist under said heads consisting of an endless chain conveyor equipped with trays on which an operator comes to place the wrists in a predetermined position.
  • This installation does not allow automatic feeding of button and buttonhole machines or automatic adaptation to wrists of different types and dimensions.
  • the purpose of the present invention is to allow fully automatic operation of such an installation with the possibility of manufacturing indifferently, and without any manual intervention, right wrists and left wrists of different dimensions.
  • the installation which is the subject of the present invention is characterized in that the means for positioning at least one end of the wrist comprise a turntable with a vertical axis, the plane of which is situated at the same level as the table of the topstitching machine and of the machines for sew the button and make the buttonhole, this plate making it possible to orient the wrist so that it is presented in an adequate orientation or an orientation at 180 ° this under the heads of said machines, and a pushing device which moves the wrist on said tray to bring the button-buttonhole line of the wrist coincident with a diameter of the tray, said device comprising a plurality of eclipsable fingers that can be moved perpendicularly to said diameter.
  • the means for positioning at least one end of the wrist further include a device making it possible to bring the ends of the wrist together and to bring them at a predetermined distance from each other corresponding to the spacing of the heads.
  • working buttonhole and button sewing machines are working buttonhole and button sewing machines.
  • these means comprise a device making it possible to move the wrist longitudinally in order to position one of its ends relative to the working head of one of the buttonhole and button sewing machines, said button machine being fixed, detect the other end of the wrist and control the movement of the other machine which is mobile, to adapt the spacing of the working heads to the size of the wrist.
  • the directions of movement of the wrist from the topstitching machine towards the turntable, on the one hand, and from the latter towards the buttonhole and button-sewing machines, on the other hand, can be parallel or perpendicular.
  • the amplitude and the direction of rotation of the plate depend on the arrangement chosen and the type of wrist, right or left, to be manufactured. With the parallel arrangement, for a first type of wrist, it is not necessary to rotate the plate, the wrist being only moved in translation from the topstitching machine to the machines for making the buttonhole and sewing the button with a stop on the tray to position it; for the other type of wrist, the plate is rotated 180 ° before transferring the wrist to said machines.
  • the installation may further include a shaping machine placed upstream of the stitching machine, means for transferring the wrist from one machine to another, a storage stacker placed downstream of the buttonhole and sew the button and means to transfer the wrist of these machines to the stacker and to introduce it into the latter.
  • a magazine is provided between the shaping machine and the topstitching machine.
  • FIG. 1 is a plan view schematically showing the entire installation according to a first embodiment
  • FIG. 2 shows in perspective, a shaping machine and means for transferring the wrist from said machine to a store
  • FIG. 3 shows in perspective, said magazine and means for transferring the wrist onto the table of the stitching machine
  • FIG. 4 shows in perspective, the stitching machine and means for transferring the wrist to the turntable
  • FIG. 5 representing in perspective, said turntable
  • FIG. 6 represents in perspective, the means for transferring the wrist of the turntable to the level of the machines for making the buttonhole and sewing the button, and for moving it away towards a stacker,
  • FIG. 7 is a perspective view of said stacker
  • FIG. 8 is a perspective view of part of the installation according to another embodiment
  • FIG. 9 is a plan view of the turntable of the installation of FIG. 8, and
  • Figure 10 shows in perspective a detail of this installation.
  • Figure 1 we see a conventional type of shaping machine consisting of a set of five plates 4 rotating around a vertical axis 3 in the manner of a carousel.
  • the reference 1 designates the operator who introduces a sliding wrist into the feeder 2 of the machine. The latter restores the wrist 6 heat-bonded to station 5 when the introductory plate 4 has successively occupied the various stations of the conforming machine during its rotation around the axis 3.
  • the wrist 6 is then brought by means which will be described later, on the table 63 of a magazine 34.
  • Each wrist 6 is successively brought by means also described below, on the table 64 of an overstitching machine 24 , then on a turntable 53 with vertical axis.
  • Tables 63 and 64 and the tray 53 are located on the same level. From the tray 53 the wrist 6 is brought to the table 79 supporting a machine 44 for placing the button, placed opposite a machine 48 for making the buttonhole.
  • the table 79 is arranged at the same level as the aforementioned tables but the direction of movement of the handle 6 is perpendicular to the direction of movement of said wrist on the tables 63 and 64.
  • the correct position of the wrist 6 at station 5 is controlled by photocells 80 (fig. 3).
  • the magazine 34 with a capacity of ten wrists, for example, allows the half-time use of the conforming machine when its production rate is double that of downstream equipment.
  • FIG. 3 we see a clamp 12 which feeds the ten stations of the store 34 taking charge of the wrist 6 when the clamps 8 have been put out of service by the electromagnets 9.
  • This support is ensured by a jack pneumatic 13.
  • the clamp 12 and the wrist 6 which it drives by sliding it on the base 23 then on the table 63 are moved linearly by a rodless hydraulic cylinder 14, a clamp holder carriage 32 being guided by a column system- ball bushings 33.
  • a presence detector 17 of the wrists 6, integral with the clamp 12, causes the latter to stop at the store station 34 immediately preceding a position occupied by a wrist 6.
  • the stop position is related to the speed of advance of the hydraulic cylinder 14.
  • the clamp 12 then releases the wrist 6 which is held in position on the table 63 by suction openings 52.
  • the rotation of the rotary cylinder 10 is done always cylinder rods 7 retracted. So that the clamp 12 does not interfere with this rotation a waiting position is provided for the latter.
  • a step-by-step advance of the wrist 6 is controlled by fingers 21 integral with a shaft 15 driven in rotation by a jack 18.
  • This shaft is carried by a movable assembly whose linear guidance is provided by a column-ball bushing system 19, the movement of a step being ensured by a pneumatic jack 20.
  • FIG. 4 The unloading of the magazine 34 with a view to feeding the topstitching machine 24 is illustrated in FIG. 4. This unloading is ensured by a clamp 16 which ensures the transfer of the wrists 6 under conditions similar to those of the clamp 12.
  • the jack 25 without drive rod, here is pneumatic.
  • the machine 24 of a conventional type performs the stitching operation in a manner known per se.
  • An arm 26 transfers the overstitched wrist 6 from the machine 24 to the turntable 53, which follows tables 63 and 64 and is arranged at the same level as these.
  • the arm 26 is articulated on an axis 28 around which it rocks under the action of a jack 29. This arrangement has the advantage of making it possible to pass it in front of the machine 24 while the shoe 30 of said machine rotates around its axis 31 for manipulating the wrist 6 during the stitching operation.
  • the purpose of the turntable 53 is to position the wrist so that a theoretical line 27 joining the implantation points A and B provided for the button and the buttonhole is parallel to the plane defined by the axes 77 and 78 of the working heads. of the two machines 44 and 48 and that the distance between points A and B is equal to the spacing of the axes of the two heads.
  • the wrist 6 On leaving the topstitching machine, the wrist 6 is not always correctly positioned and the first operation consists in bringing the line 27 into coincidence with a diameter 37 of the turntable; when the plate is in a first position which it occupies when the wrist is brought there by the clamp 16, this diameter is perpendicular to the direction of movement of the wrist on the tables 63 and 64 represented in the drawing by the line 38.
  • the wrist After that the arm 26 has been moved away from the turntable, the wrist is pushed by two fingers 35 moved by a pneumatic cylinder 36 until the line 27 coincides with the diameter 37 of the tray; the fingers 35 are then raised and brought into the retracted position by the jack 36.
  • the assembly constituted by the fingers 35, the device for controlling the movements of the fingers and their support is mounted in a fixed position in a position diametrically opposite to the stitching in relation to the center of the plate.
  • the turntable 53 supports the wrist 6.
  • a clamp 39 moved in translation by a pneumatically controlled carriage 40 starts from its rear stop position and moves towards the center of the tray to support one end of the wrist 6 as soon as, during the advance, a photoelectric cell 51 carried by the clamp 39 detects the edge of said wrist and controls the electromagnet 42 for closing the clamp 39 which then drives the wrist 6 until the end of the stroke of the carriage 40.
  • a clamp 45 takes charge of the other end of the wrist 6 after detection of the edge of the latter, and drives it until the end of the travel of a carriage 46.
  • the wrist 6 forms a loop oriented downwards inside a chute 49 practiced diametrically in the turntable 53 perpendicular to the line 37.
  • a finger 50 (fig. 6) controlled by an electromagnet 51. Said finger by lowering itself instantly bends the wrist 6 downwards, failing which the position of the loop would be random (possibly above the plate 53).
  • Adjustable stops fix the limit switches of the carriages 40 and 46 so that, after the operations described above, the distance between point A where the button is to be sewn and point B where the buttonhole is to be formed is equal at the spacing between the axes 77 and 78 of the heads of the machines 44 and 48 whatever the size of the wrist.
  • the positions of the cells 41 on the clamps 39 and 45 are adjustable and fixed as a function of the distances separating the points A and B from the adjacent edges of the wrist.
  • the turntable 53 rotates 90 °; the plate is driven in rotation by a rotary pneumatic cylinder 83.
  • the rotation is carried out in one direction or the other depending on whether it is a right wrist or a left wrist.
  • the overstitched wrist always arrives in the same position on the plate 53 and must therefore be rotated 90 ° in one direction if it is a straight wrist, and in the opposite direction, if it is a 'a left wrist to bring point A, respectively point B, in alignment with the axis 77 of the machine head 44, respectively of the axis 77 of the machine head 48.
  • By rotation of 90 ° the line 27 joining the points A and B is brought to be parallel to the plane containing the axes 77 and 78 of the heads of the machines 44 and 48.
  • the position in which the plate is located when it receives the wrist of the topstitching machine is fixed by two eclipsable stops 54 controlled by two pneumatic cylinders 55.
  • the two positions in which the plate is brought by rotation of 90 ° in one direction or in the other, are fixed by two fixed stops 81. These stops are placed under the plate and cooperate with pins fixed to the plate. To rotate the plate from its first position, in one direction or the other, we must first eclipse the corresponding stop 54; it must also be overshadowed to allow the tray to return to its first position.
  • a transfer arm 56 After rotation of the plate 53, the wrist 6 is supported by a transfer arm 56, as can be seen in FIG. 6.
  • This arm is provided with two grippers 57 and 58 controlled by a single pneumatic cylinder 59.
  • These grippers and this jack are carried by a carriage 60 guided by a column-bushing ball system 61 and driven by a pneumatic jack without rod 62.
  • This assembly is constructed so as to be able to be interposed between the heads of the machines 44 and 48 in view of the corresponding operations.
  • the clamp 57 is produced so as to be able to pass between the clamps 39 and 45 to take up the wrist 6 on the turntable 53.
  • the clamps 39 and 45 do not let go of the wrist until after the clamp 57 has been applied thereto so that it cannot accidentally change position.
  • the wrist is brought under the heads of the machines 44 and 48 by the clamp 57 by sliding on the plate 53 and on the table 79, the path of the points A and B being represented in FIG. 5 by the lines 43 and 47.
  • a chute 66 extending the chute 49 of the plate 53 when the latter has made a rotation of 90 ° (FIG. 6) and in which the loop formed by the wrist moves during its transfer from the plate 53 to the machines 44 and 48.
  • the clamp 58 ensures its evacuation towards a stacker 65.
  • This clamp holds the wrist 6 on one side only to allow it to deploy while escaping from the chute 66, helped in this by the inclined plane 67 which follows the flat bottom of the troughs 49 and 66.
  • another wrist is brought by the clamp 57 to the machines 44 and 48.
  • the vertical retraction of the grid 68 is caused by a jack 72, which allows the wrists previously stored to be brought into contact with the wrist 6 inserted between grid 68 and pusher 69. Constant pressure is ensured on the wrists stacked by a carriage 75 rolling on the storage plane of the stacker 65 by means of rolling balls 76.
  • the pusher 69 then advances a few centimeters under the action of the jack 73 until it is plumb with the grid 68.
  • the pusher 69 is guided by a column-bush system 74.
  • the grid 68 then rises in the corresponding imprints of the pusher 69. The latter moves back to its starting position and the stacker 65 is then ready to receive a new wrist 6.
  • All the different stations work advantageously in automatic mode. A single operator is required to insert the wrist into the feeder of the conforming machine.
  • Figures 8 to 10 show another embodiment.
  • the elements which are identical to or which fulfill the same functions as elements of the embodiment of FIGS. 1 to 7 have for reference number that of the element corresponding to the first embodiment increased by 100.
  • the means of bringing the wrist to the stitching machine, the means of transferring the wrist between this machine and the plate and between the latter and the button sewing machines and in forming the buttonhole and the means for evacuate the completed wrist were not shown.
  • the topstitching machine 124 and the button and buttonhole sewing machines 144 and 148 are arranged in line. Consequently, for one type of wrist, for example a straight wrist, it will not be necessary to rotate the plate 153 before transferring the wrist to the machines 144 and 148 and for the other type of wrist it will be necessary to rotate the plate 180 °.
  • the fingers 135 used to position the wrist so that the line AB coincides with the diameter 137 of the plate are carried by the latter.
  • the fingers are rotatably mounted on a shaft 200 arranged under the plate 153 parallel to the diameter 137 and the ends of which are supported by slides 202 mounted on horizontal rods 204 arranged perpendicularly to the shaft 200.
  • the displacements of the shaft 200 and fingers 135 parallel to the rods 204 are provided by a jack 136.
  • the fingers 135 protrude from the top of the plate 153 through slots 206 cut therefrom and parallel to the rods 204.
  • Counterweights 208 and stops limiting the rotation of the fingers on the shaft 200 under the action of these counterweights normally hold the fingers upright; the counterweights could be replaced by springs.
  • the movement of the movable assembly constituted by the fingers 135, the shaft 200 and the slides 202 towards the center of the plate is limited by adjustable stops. It is during this movement that the fingers push the wrist to bring the line A-B of the wrist in coincidence with the diameter 137 of the plate.
  • the displacement in the opposite direction of this movable assembly brings the fingers 135 into abutment against the ends of the slots 206 furthest from the center of the plate 153, then causes the fingers, which rotate on the shaft 200, to tilt and eclipse them under the tray.
  • a locking system makes it possible to make one or more fingers inactive by keeping them under the plate during the entire course of the moving assembly.
  • a movable arm 210 provided with a clamp 212 and maneuverable by a jack 214 makes it possible to move the wrist parallel to the diameter 137 after the clamp has been applied to the wrist by a jack 216 which causes the arm to tilt.
  • Clamps 218 actuated by jacks 220 mounted on brackets fixed on the plate keep the wrist in position on the plate during its rotation.
  • Two photoelectric cells 222 are placed in slots 224 formed in the tray, parallel to the diameter 137, so as to be flush with the upper face of the tray. These cells are arranged symmetrically with respect to the diameter 226 perpendicular to the diameter 137. Each cell is associated with a light source so that it is excited each time a surface forming a reflecting screen is placed above it, on the tray. The position of cells in lights is adjustable.
  • the machine 144 is mounted on a table 228 provided with movable guides on bars 230 arranged perpendicular to the direction of movement of the wrist between the machine 124 , the plate 153 and the machines 144 and 148.
  • a geared motor group 232 whose output pinion meshes with a rack fixed to the table 228 makes it possible to move the latter along the bars 230.
  • a bracket 234 fixed on the table 228 carries at its free end a photoelectric cell 236 associated with a light source.
  • the point of impact on the plate of the light rays emitted by this source is located on the diameter 137 and describes a portion of this diameter when the machine 148 is moving while the plate is in one or the other of its fixed stop positions.
  • These two portions of the surface of the tray are covered with a reflective coating, so that the current emitted by the cell, which is normally excited by the rays reflected on the tray, decreases in intensity when an object forming a screen is placed under the point of impact of the incident rays.
  • pivoting flaps 238 are used (FIG. 10) secured to a horizontal shaft 240 whose rotation is controlled by a jack 242 to move the flaps between a horizontal position, in the plane of the machine tables 144 and 148 and a vertical position, below this plane.
  • the flaps are independent of each other and each of them is made integral with the shaft 240 by a latch constituted by a ball 244 normally held in a cavity 246 of the shaft by spring.
  • a stop 248 integral with the table of the machine 144 can prevent the upward rotation of one or more flaps, depending on the position of the machine.
  • this stop is located in front of a flap, the ball 244 of this flap emerges from the cavity 246 when the shaft 240 is rotated and only the other flaps are brought into a horizontal position.
  • the clamp 212 is applied to the wrist and the arm 210, which was in the retracted position, is moved towards the center of the plate 153 by driving the wrist.
  • the edge of the wrist located on the side of the arm 210 arrives at the level of the cell 222 situated on the same side, the latter which was hitherto covered by the wrist detects a reduction in the reflected light energy and the resulting signal controls the stopping the arm 210, tightening the clamps 218, lifting the clamp 212 and withdrawing the arm 210; point B is then aligned with axis 178 of machine 148.
  • Machine 144 is then moved, by means of motor 232, until cell 236 detects the other edge of the wrist by varying the intensity of reflected light.
  • the cell then controls the stopping of the motor 232, and the flaps 238, which were eclipsed, are brought back to a horizontal position.
  • the point A is then aligned with the axis 177 of the machine 144.
  • a pliers similar to the pliers 57 of the first embodiment is then applied to the wrist, the pliers 218 are separated and the wrist is transferred to the machines 144 and 148.
  • the wrist arrives on the plate 153 in the reverse position, that is to say if point A is on the side of the machine 148 and point B on the side of the machine 144, it must be rotated 180 ° to bring it to the correct position. Positioning along the diameter 137 by means of the fingers 135 is carried out as in the first case. The wrist is then pushed by the arm 210, which moves towards the center of the plate, but in this case, the other cell 222 is used, that is to say the one located on the side of the machine 144 for detect the other edge of the wrist.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

There is provided an automatic shirt cuff manufacturing unit comprising an overcast stitching machine, a buttonhole forming machine and a button sewing machine. The unit includes means for conveying the cuff to the overcast stitching machine, means for removing the cuff from the overcast stitching machine, means for positioning at least one of the ends of the cuff with respect to one of the working heads of the buttonhole forming and button sewing machines, the working heads of said machines being arranged opposite one another, means for orienting the cuff so that it assumes the proper orientation, or an orientation at 180 DEG from it, under the working heads, means for bringing the cuff under said heads while maintaining it in correct position, and means for removing the cuff from the machines.

Description

La présente invention a pour objet une installation pour la fabrication de poignets de chemise comportant une machine de surpiquage, une machine pour faire la boutonnière, une machine pour coudre le bouton sur le poignet, des moyens pour amener le poignet à la machine de surpiquage, des moyens pour positionner au moins l'une des extrémités du poignet par rapport à l'une au moins des têtes de travail de la machine à faire la boutonnière et de la machine à coudre le bouton, lesdites têtes étant disposées en regard l'une de l'autre, des moyens pour amener le poignet sous lesdites têtes en les maintenant en position correcte et des moyens pour éloigner le poignet des machines à faire la boutonnière et à coudre le bouton.The subject of the present invention is an installation for manufacturing shirt cuffs comprising a stitching machine, a machine for making the buttonhole, a machine for sewing the button on the wrist, means for bringing the wrist to the stitching machine, means for positioning at least one of the ends of the wrist relative to at least one of the working heads of the buttonhole machine and of the button sewing machine, said heads being arranged opposite one on the other, means for bringing the wrist under said heads while maintaining them in the correct position and means for moving the wrist away from the buttonhole and button sewing machines.

Une telle installation est montrée dans le document nMelliand Textilberichte", vol. 59, no 5, mai 1978, pages 396-398. Toutefois, dans ce document, les moyens pour positionner les extrémités du poignet par rapport aux dites têtes de travail de la machine à faire la boutonnière et de la machine à coudre le bouton ne sont pas décrits.Such an installation is shown in the document nMelliand Textilberichte ", vol. 59, no 5, May 1978, pages 396-398. However, in this document, the means for positioning the ends of the wrist relative to said working heads of the buttonhole machine and button sewing machine are not described.

Par ailleurs, le document US-A- 2 985 112 décrit une installation comportant une machine à coudre le bouton et une machine à faire la boutonnière dont les têtes de travail sont disposées en regard l'une de l'autre, et un dispositif pour amener le poignet sous lesdites têtes constitué par un transporteur à chaine sans fin équipé de plateaux sur lesquels un opérateur vient placer les poignets dans une position - prédéterminée. Cette installation ne permet pas une alimentation automatique des machines à coudre le bouton et à faire la boutonnière ni une adaptation automatique à des poignets de différents types et dimensions.Furthermore, document US-A-2 985 112 describes an installation comprising a button sewing machine and a buttonhole machine, the working heads of which are arranged opposite one another, and a device for bring the wrist under said heads consisting of an endless chain conveyor equipped with trays on which an operator comes to place the wrists in a predetermined position. This installation does not allow automatic feeding of button and buttonhole machines or automatic adaptation to wrists of different types and dimensions.

Le but de la présente invention est de permettre un fonctionnement entièrement automatique d'une telle installation avec possibilité de fabriquer indifféremment, et sans aucune intervention manuelle, des poignets droits et des poignets gauches de différentes dimensions.The purpose of the present invention is to allow fully automatic operation of such an installation with the possibility of manufacturing indifferently, and without any manual intervention, right wrists and left wrists of different dimensions.

L'installation objet de la présente invention est caractérisée en ce que les moyens pour positionner au moins une extrémité du poignet comportent un plateau tournant à axe vertical dont le plan est situé au même niveau que la table de la machine de surpiquage et des machines à coudre le bouton et à faire la boutonnière, ce plateau permettant d'orienter le poignet de façon qu'il se présente suivant une orientation adéquate ou une orientation à 180° celle-ci sous les têtes desdites machines, et un dispositif de poussée qui déplace le poignet sur ledit plateau pour amener la ligne bouton-boutonnière du poignet en coincidence avec un diamètre du plateau, ledit dispositif comprenant une pluralité de doigts éclipsables et déplaçables perpendiculairement audit diamètre.The installation which is the subject of the present invention is characterized in that the means for positioning at least one end of the wrist comprise a turntable with a vertical axis, the plane of which is situated at the same level as the table of the topstitching machine and of the machines for sew the button and make the buttonhole, this plate making it possible to orient the wrist so that it is presented in an adequate orientation or an orientation at 180 ° this under the heads of said machines, and a pushing device which moves the wrist on said tray to bring the button-buttonhole line of the wrist coincident with a diameter of the tray, said device comprising a plurality of eclipsable fingers that can be moved perpendicularly to said diameter.

Suivant un premier mode de réalisation, les moyens pour positionner au moins une extrémité du poignet comportent en outre un dispositif permettant de rapprocher les extrémités du poignet et les amener à une distance prédéterminée l'une de l'autre correspondant à l'écartement des têtes de travail des machines à faire la boutonnière et à coudre le bouton. Suivant un autre mode de réalisation, ces moyens comportent un dispositif permettant de déplacer longitudinalement le poignet pour positionner l'une de ses extrémités par rapport à la tête de travail de l'une des machines à faire la boutonnière et à coudre le bouton, ladite machine étant fixe, de détecter l'autre extrémité du poignet et de commander le déplacement de l'autre machine qui est mobile, pour adapter l'écartement des têtes de travail à la dimension du poignet.According to a first embodiment, the means for positioning at least one end of the wrist further include a device making it possible to bring the ends of the wrist together and to bring them at a predetermined distance from each other corresponding to the spacing of the heads. working buttonhole and button sewing machines. According to another embodiment, these means comprise a device making it possible to move the wrist longitudinally in order to position one of its ends relative to the working head of one of the buttonhole and button sewing machines, said button machine being fixed, detect the other end of the wrist and control the movement of the other machine which is mobile, to adapt the spacing of the working heads to the size of the wrist.

Les directions de déplacement du poignet de la machine de surpiquage vers le plateau tournant, d'une part, et de celui-ci vers les machines à faire la boutonnière et à coudre le bouton, d'autre part, peuvent être parallèles ou perpendiculaires. L'amplitude et le sens de rotation du plateau dépendent de la disposition retenue et du type de poignet, droit ou gauche, à fabriquer. Avec la disposition parallèle, pour un premier type de poignet, il n'est pas nécessaire de faire tourner le plateau, le poignet étant uniquement déplacé en translation de la machine de surpiquaqe aux machines à faire la boutonnière et coudre le bouton avec un arrêt sur le plateau pour le positionner; pour l'autre type de poignet, on fait tourner le plateau de 180° avant de transférer le poignet aux dites machines. Avec la disposition perpendiculaire, il faut faire tourner le plateau de 90° dans un sens ou dans l'autre, suviant le type de poignet, avant de transférer le poignet aux machines à faire la boutonnière et à coudre le bouton. Les différentes positions dans lesquelles le plateau doit être amené et maintenu pendant un certain temps sont fixées par des butées dont certaines sont escamotables dans le cas d'une disposition perpendiculaire.The directions of movement of the wrist from the topstitching machine towards the turntable, on the one hand, and from the latter towards the buttonhole and button-sewing machines, on the other hand, can be parallel or perpendicular. The amplitude and the direction of rotation of the plate depend on the arrangement chosen and the type of wrist, right or left, to be manufactured. With the parallel arrangement, for a first type of wrist, it is not necessary to rotate the plate, the wrist being only moved in translation from the topstitching machine to the machines for making the buttonhole and sewing the button with a stop on the tray to position it; for the other type of wrist, the plate is rotated 180 ° before transferring the wrist to said machines. With the perpendicular arrangement, you must rotate the plate 90 ° in one direction or the other, depending on the type of wrist, before transferring the wrist to the buttonhole and button sewing machines. The different positions in which the plate must be brought and maintained for a certain time are fixed by stops, some of which are retractable in the case of a perpendicular arrangement.

L'installation peut en outre comporter une machine de conformage placée en amont de la machine de surpiquage, des moyens pour transférer le poignet d'une machine à l'autre, un empileur de stockage placé en aval des machines à faire la boutonnière et à coudre le bouton et des moyens pour transférer le poignet de ces machines à l'empileur et pour l'introduire dans ce dernier.The installation may further include a shaping machine placed upstream of the stitching machine, means for transferring the wrist from one machine to another, a storage stacker placed downstream of the buttonhole and sew the button and means to transfer the wrist of these machines to the stacker and to introduce it into the latter.

Suivant une forme particulière de réalisation il est prévu un magasin entre la machine de conformage et la machine de surpiquage.According to a particular embodiment, a magazine is provided between the shaping machine and the topstitching machine.

D'autres caractéristiques de l'invention apparaîtront à la lecture de la description qui suit, faite en regard des dessins annexés et concernant deux formes particulières de réalisation données à titre d'exemple non limitatif.Other characteristics of the invention will appear on reading the description which follows, given with reference to the appended drawings and relating to two particular embodiments given by way of nonlimiting example.

La figure 1 est une vue en plan montrant schématiquement l'ensemble de l'installation suivant un premier mode de réalisation,FIG. 1 is a plan view schematically showing the entire installation according to a first embodiment,

La figure 2 représente en perspective, une machine de conformage et des moyens pour transférer le poignet de ladite machine vers un magasin,FIG. 2 shows in perspective, a shaping machine and means for transferring the wrist from said machine to a store,

La figure 3 représente en perspective, ledit magasin et des moyens pour transférer le poignet sur la table de la machine de surpiquage,FIG. 3 shows in perspective, said magazine and means for transferring the wrist onto the table of the stitching machine,

La figure 4 représente en perspective, la machine de surpiquage et des moyens pour transférer le poignet au plateau tournant,FIG. 4 shows in perspective, the stitching machine and means for transferring the wrist to the turntable,

La figure 5 représante en perspective, ledit plateau tournant,FIG. 5 representing in perspective, said turntable,

La figure 6 représente en perspective, les moyens pour transférer le poignet du plateau tournant au niveau des machines à faire la boutonnière et coudre le bouton, et pour l'en éloigner vers un empileur,FIG. 6 represents in perspective, the means for transferring the wrist of the turntable to the level of the machines for making the buttonhole and sewing the button, and for moving it away towards a stacker,

La figure 7 est une vue en perspective dudit empileur,FIG. 7 is a perspective view of said stacker,

La figure 8 est une vue en perspective d'une partie de l'installation suivant une autre forme de réalisation,FIG. 8 is a perspective view of part of the installation according to another embodiment,

La figure 9 est une vue en plan du plateau tournant de l'installation de la figure 8, etFIG. 9 is a plan view of the turntable of the installation of FIG. 8, and

La figure 10 montre en perspective un détail de cette installation.Figure 10 shows in perspective a detail of this installation.

Sur la figure 1, on voit une machine de conformage de type usuel constituée par un ensemble de cinq plateaux 4 tournant autour d'un axe vertical 3 à la manière d'un caroussel. Le repère 1 désigne l'opérateur qui introduit un poignet coulissé dans l'alimentateur 2 de la machine. Cette dernière restitue le poignet 6 thermocollé au poste 5 lorsque le plateau 4 d'introduction a occupé successivement les différents postes de la machine de conformage au cours de sa rotation autour de l'axe 3.In Figure 1, we see a conventional type of shaping machine consisting of a set of five plates 4 rotating around a vertical axis 3 in the manner of a carousel. The reference 1 designates the operator who introduces a sliding wrist into the feeder 2 of the machine. The latter restores the wrist 6 heat-bonded to station 5 when the introductory plate 4 has successively occupied the various stations of the conforming machine during its rotation around the axis 3.

Le poignet 6 est ensuite amené par des moyens qui seront décrits plus loin, sur la table 63 d'un magasin 34. Chaque poignet 6 est successivement amené par des moyens également décrits plus loin, sur la table 64 d'une machine de surpiquage 24, puis sur un plateau tournant 53 à axe vertical. Les tables 63 et 64 ainsi que le plateau 53 sont situés au même niveau. A partir du plateau 53 le poignet 6 est amené sur la table 79 supportant une machine 44 à poser le bouton, disposée en regard d'une machine 48 à faire la boutonnière. La table 79 est disposée au même niveau que les tables précitées mais le sens de déplacement du poigner 6 est perpendiculaire au sens de déplacement dudit poignet sur les tables 63 et 64.The wrist 6 is then brought by means which will be described later, on the table 63 of a magazine 34. Each wrist 6 is successively brought by means also described below, on the table 64 of an overstitching machine 24 , then on a turntable 53 with vertical axis. Tables 63 and 64 and the tray 53 are located on the same level. From the tray 53 the wrist 6 is brought to the table 79 supporting a machine 44 for placing the button, placed opposite a machine 48 for making the buttonhole. The table 79 is arranged at the same level as the aforementioned tables but the direction of movement of the handle 6 is perpendicular to the direction of movement of said wrist on the tables 63 and 64.

Sur la figure 2, on voit le poignet 6 thermocollé situé en face d'un dispositif de préhension. Ce dispositif est constitué par une paire de pinces 8 commandées par deux électro-aimants 9 et montées sur un socle 23 fixé au rotor d'un vérin rotatif 10 à axe horizontal dont le corps est fixé à l'extrémité des tiges d'un vérin à double tige 7. Par rotation de 180° le socle 23 est amené au niveau de la table 63, le poignet se trouvant alors sur le socle.In Figure 2, we see the wrist 6 heat sealed located in front of a gripping device. This device consists of a pair of clamps 8 controlled by two electromagnets 9 and mounted on a base 23 fixed to the rotor of a rotary actuator 10 with horizontal axis whose body is fixed to the end of the rods of an actuator with double rod 7. By rotation of 180 ° the base 23 is brought to the level of the table 63, the wrist then being on the base.

La position correcte du poignet 6 au poste 5 est contrôlée par des cellules photo-électriques 80 (fig. 3). Le magasin 34 d'un capacité de dix poignets, par exemple, permet l'utilisation à mi- temps de la machine de conformage lorsque sa cadence de production est double de celle des équipements avals.The correct position of the wrist 6 at station 5 is controlled by photocells 80 (fig. 3). The magazine 34 with a capacity of ten wrists, for example, allows the half-time use of the conforming machine when its production rate is double that of downstream equipment.

Sur la figure 3, on voit une pince 12 qui alimente les dix postes du magasin 34 en prenant en charge le poignet 6 lorsque les pinces 8 ont été mises hors service par les électro-aimants 9. Cette prise en charge est assurée par un vérin pneumatique 13. La pince 12 et le poignet 6 qu'elle entraîne en le faisant glisser sur le socle 23 puis sur la table 63 sont déplacés linéairement par un vérin hydraulique sans tige 14, un chariot porte pince 32 étant guide par un système colonne-douilles à billes 33.In FIG. 3, we see a clamp 12 which feeds the ten stations of the store 34 taking charge of the wrist 6 when the clamps 8 have been put out of service by the electromagnets 9. This support is ensured by a jack pneumatic 13. The clamp 12 and the wrist 6 which it drives by sliding it on the base 23 then on the table 63 are moved linearly by a rodless hydraulic cylinder 14, a clamp holder carriage 32 being guided by a column system- ball bushings 33.

Un détecteur de présence 17 des poignets 6, solidaire de la pince 12, provoque l'arrêt de celle-ci au poste du magasin 34 précédant immédiatement un poste occupé par un poignet 6. Compte tenu du temps de réponse des organes de commande, la position d'arrêt est liée à la vitesse d'avance du vérin hydraulique 14. La pince 12 libère alors le poignet 6 qui est maintenu en position sur la table 63 par des ouïes d'aspiration 52. La rotation du vérin rotatif 10 se fait toujours tiges de vérin 7 rentrées. Pour que la pince 12 ne gêne par cette rotation une position d'attente il est prévue pour celle-ci.A presence detector 17 of the wrists 6, integral with the clamp 12, causes the latter to stop at the store station 34 immediately preceding a position occupied by a wrist 6. Given the response time of the control members, the stop position is related to the speed of advance of the hydraulic cylinder 14. The clamp 12 then releases the wrist 6 which is held in position on the table 63 by suction openings 52. The rotation of the rotary cylinder 10 is done always cylinder rods 7 retracted. So that the clamp 12 does not interfere with this rotation a waiting position is provided for the latter.

Une avance pas à pas du poignet 6 est commandée par des doigts 21 solidaires d'un arbre 15 entraîné en rotation par un vérin 18. Cet arbre est porté par un équipage mobile dont le guidage linéaire est assuré par un système colonne-douilles à billes 19, le déplacement d'un pas étant assuré par un vérin pneumatique 20. Les doigts 21 assurant le transfert pas à pas du poignet 6 sur la table 63, sont constitués chacun d'une lame de ressort munie à son extrémité d'un patin en caoutchouc 22.A step-by-step advance of the wrist 6 is controlled by fingers 21 integral with a shaft 15 driven in rotation by a jack 18. This shaft is carried by a movable assembly whose linear guidance is provided by a column-ball bushing system 19, the movement of a step being ensured by a pneumatic jack 20. The fingers 21 ensuring the step-by-step transfer of the wrist 6 onto the table 63, each consist of a spring leaf provided at its end with a pad rubber 22.

Le déchargement du magasin 34 en vue de l'alimentation de la machine de surpiquage 24 est illustré sur la figure 4. Ce déchargement est assuré par une pince 16 qui assure le transfert des poignets 6 dans des conditions similaires à celles de la pince 12. Le vérin 25 sans tige d'entrainement, est ici pneumatique. La machine 24 d'un type usuel, effectue l'opération de surpiquage d'une façon connue en soi.The unloading of the magazine 34 with a view to feeding the topstitching machine 24 is illustrated in FIG. 4. This unloading is ensured by a clamp 16 which ensures the transfer of the wrists 6 under conditions similar to those of the clamp 12. The jack 25 without drive rod, here is pneumatic. The machine 24 of a conventional type, performs the stitching operation in a manner known per se.

Un bras 26 transfère le poignet 6 surpiqué de la machine 24 au plateau tournant 53, qui fait suite aux tables 63 et 64 et est disposé au même niveau que celles-ci. Le bras 26 est articulé sur un axe 28 autour duquel il bascule sous l'action d'un vérin 29. Cette disposition présente l'avantage de permettre de le faire passer devant la machine 24 tandis que le sabot 30 de ladite machine tourne autour de son axe 31 pour manipuler le poignet 6 pendant l'opération de surpiquage.An arm 26 transfers the overstitched wrist 6 from the machine 24 to the turntable 53, which follows tables 63 and 64 and is arranged at the same level as these. The arm 26 is articulated on an axis 28 around which it rocks under the action of a jack 29. This arrangement has the advantage of making it possible to pass it in front of the machine 24 while the shoe 30 of said machine rotates around its axis 31 for manipulating the wrist 6 during the stitching operation.

Le plateau tournant 53 a pour but de positionner le poignet de sorte qu'une ligne théorique 27 joignant les points d'implantation A et B prévus pour le bouton et la boutonnière soit parallèle au plan défini par les axes 77 et 78 des têtes de travail des deux machines 44 et 48 et que la distance séparant les points A et B soit égale à l'écartement des axes des deux têtes.The purpose of the turntable 53 is to position the wrist so that a theoretical line 27 joining the implantation points A and B provided for the button and the buttonhole is parallel to the plane defined by the axes 77 and 78 of the working heads. of the two machines 44 and 48 and that the distance between points A and B is equal to the spacing of the axes of the two heads.

En sortie de la machine de surpiquage, le poignet 6 n'est pas toujours correctement positionné et la première opération consiste à amener la ligne 27 en coïncidence avec un diamètre 37 du plateau tournant; lorsque le plateau est dans une première position qu'il occupe lorsque le poignet y est amené par la pince 16, ce diamètre est perpendiculaire à la direction de déplacement du poignet sur les tables 63 et 64 représentée sur le dessin par la ligne 38. Après que le bras 26 ait été écarté du plateau tournant, le poignet est poussé par deux doigts 35 déplacés par un vérin pneumatique 36 jusqu'à ce que la ligne 27 coïncide avec le diamètre 37 du plateau ; les doigts 35 sont ensuite relevés et amenés en position rétractée par le vérin 36. L'ensemble constitué par les doigts 35, le dispositif de commande des mouvements des doigts et leur support est monté à poste fixe dans une position diamétralement opposée à la machine de surpiquage par rapport au centre du plateau.On leaving the topstitching machine, the wrist 6 is not always correctly positioned and the first operation consists in bringing the line 27 into coincidence with a diameter 37 of the turntable; when the plate is in a first position which it occupies when the wrist is brought there by the clamp 16, this diameter is perpendicular to the direction of movement of the wrist on the tables 63 and 64 represented in the drawing by the line 38. After that the arm 26 has been moved away from the turntable, the wrist is pushed by two fingers 35 moved by a pneumatic cylinder 36 until the line 27 coincides with the diameter 37 of the tray; the fingers 35 are then raised and brought into the retracted position by the jack 36. The assembly constituted by the fingers 35, the device for controlling the movements of the fingers and their support is mounted in a fixed position in a position diametrically opposite to the stitching in relation to the center of the plate.

Cette mise en position effectuée, le plateau tournant 53 prend en charge le poignet 6. A cet effet, une pince 39 déplacée en translation par un chariot à commande pneumatique 40, part de sa position de butée arrière et se déplace vers le centre du plateau pour prendre en charge une extrémité du poignet 6 dès que, au cours de l'avance, une cellule photo-électrique 51 portée par la pince 39 détecte le bord dudit poignet et commande l'électro-aimant 42 de fermeture de la pince 39 qui entraîne alors le poignet 6 jusqu'à la fin de la course du chariot 40.This positioning carried out, the turntable 53 supports the wrist 6. To this end, a clamp 39 moved in translation by a pneumatically controlled carriage 40, starts from its rear stop position and moves towards the center of the tray to support one end of the wrist 6 as soon as, during the advance, a photoelectric cell 51 carried by the clamp 39 detects the edge of said wrist and controls the electromagnet 42 for closing the clamp 39 which then drives the wrist 6 until the end of the stroke of the carriage 40.

Simultanément, et par un processus rigoureusement identique, une pince 45 prend en charge l'autre extrémité du poignet 6 après détection du bord de celui-ci, et l'entraîne jusqu'en fin de course d'un chariot 46.Simultaneously, and by a strictly identical process, a clamp 45 takes charge of the other end of the wrist 6 after detection of the edge of the latter, and drives it until the end of the travel of a carriage 46.

Pendant l'avance des pinces 39 et 45, le poignet 6 forme une boucle orientée vers le bas à l'intérieur d'une goulotte 49 pratiquée diamétralement dans le plateau tournant 53 perpendiculairement à la ligne 37. Cela est réalisé grâce à un doigt 50 (fig. 6) commandé par un électro-aimant 51. Ledit doigt en s'abaissant instantanément plie le poignet 6 vers le bas, faute de quoi la position de la boucle serait aléatoire (éventuellement au dessus du plateau 53).During the advance of the clamps 39 and 45, the wrist 6 forms a loop oriented downwards inside a chute 49 practiced diametrically in the turntable 53 perpendicular to the line 37. This is achieved by means of a finger 50 (fig. 6) controlled by an electromagnet 51. Said finger by lowering itself instantly bends the wrist 6 downwards, failing which the position of the loop would be random (possibly above the plate 53).

Des butées réglables fixent les fins de course des chariots 40 et 46 de telle sorte que, après les opérations décrites ci-dessus, la distance séparant le point A où doit être cousu le bouton et le point B où doit être formée la boutonnière soit égale à l'écartement entre les axes 77 et 78 des têtes des machines 44 et 48 quelle que soit la taille du poignet.Adjustable stops fix the limit switches of the carriages 40 and 46 so that, after the operations described above, the distance between point A where the button is to be sewn and point B where the buttonhole is to be formed is equal at the spacing between the axes 77 and 78 of the heads of the machines 44 and 48 whatever the size of the wrist.

Les positions des cellules 41 sur les pinces 39 et 45 sont réglables et fixées en fonction des distances séparant les points A et B des bords adjacents du poignet.The positions of the cells 41 on the clamps 39 and 45 are adjustable and fixed as a function of the distances separating the points A and B from the adjacent edges of the wrist.

Lorsque le poignet 6 est placé en position correcte, le plateau tournant 53 effectue une rotation de 90° ; l'entraînement en rotation du plateau est assuré par un vérin pneumatique rotatif 83. La rotation est effectuée dans un sens ou dans l'autre suivant qu'il s'agit d'un poignet droit ou d'un poignet gauche. Le poignet surpiqué arrive toujours dans la même position sur le plateau 53 et il faut donc le faire tourner de 90° dans un sens s'il s'agit d'un poignet droit, et en sens inverse, s'il s'agit d'un poignet gauche pour amener le point A, respectivement le point B, dans l'alignement de l'axe 77 de la tête de la machine 44, respectivement de l'axe 77 de la tête de la machine 48. Par rotation de 90° la ligne 27 joignant les points A et B est amenée à être parallèle au plan contenant les axes 77 et 78 des têtes des machines 44 et 48.When the wrist 6 is placed in the correct position, the turntable 53 rotates 90 °; the plate is driven in rotation by a rotary pneumatic cylinder 83. The rotation is carried out in one direction or the other depending on whether it is a right wrist or a left wrist. The overstitched wrist always arrives in the same position on the plate 53 and must therefore be rotated 90 ° in one direction if it is a straight wrist, and in the opposite direction, if it is a 'a left wrist to bring point A, respectively point B, in alignment with the axis 77 of the machine head 44, respectively of the axis 77 of the machine head 48. By rotation of 90 ° the line 27 joining the points A and B is brought to be parallel to the plane containing the axes 77 and 78 of the heads of the machines 44 and 48.

La position dans laquelle se trouve le plateau lorsqu'il reçoit le poignet de la machine de surpiquage est fixée par deux butées éclipsables 54 commandées par deux vérins pneumatiques 55. Les deux positions dans lesquelles le plateau est amené par rotation de 90° dans un sens ou dans l'autre, sont fixées par deux butées fixes 81. Ces butées sont placées sous le plateau et coopèrent avec des pions fixés au plateau. Pour faire tourner le plateau à partir de sa première position, dans un sens ou dans l'autre, on doit d'abord éclipser la butée 54 correspondante ; celle-ci doit également être éclipsée pour permettre le retour du plateau dans sa première position.The position in which the plate is located when it receives the wrist of the topstitching machine is fixed by two eclipsable stops 54 controlled by two pneumatic cylinders 55. The two positions in which the plate is brought by rotation of 90 ° in one direction or in the other, are fixed by two fixed stops 81. These stops are placed under the plate and cooperate with pins fixed to the plate. To rotate the plate from its first position, in one direction or the other, we must first eclipse the corresponding stop 54; it must also be overshadowed to allow the tray to return to its first position.

Après rotation du plateau 53, le poignet 6 est pris en charge par un bras de transfert 56, comme cela est visible sur la figure 6. Ce bras est muni de deux pinces 57 et 58 commandées par un seul vérin pneumatique 59. Ces pinces et ce vérin sont portés par un chariot 60 guidé par un système colonne-douilles à billes 61 et entraîné par un vérin pneumatique sans tige 62. Cet ensemble est construit de manière à pouvoir s'intercaler entre les têtes des machines 44 et 48 en vue des opérations correspondantes.After rotation of the plate 53, the wrist 6 is supported by a transfer arm 56, as can be seen in FIG. 6. This arm is provided with two grippers 57 and 58 controlled by a single pneumatic cylinder 59. These grippers and this jack are carried by a carriage 60 guided by a column-bushing ball system 61 and driven by a pneumatic jack without rod 62. This assembly is constructed so as to be able to be interposed between the heads of the machines 44 and 48 in view of the corresponding operations.

La pince 57 est réalisée de manière à pouvoir passer entre les pinces 39 et 45 pour reprendre le poignet 6 sur le plateau tournant 53. Les pinces 39 et 45 ne lachent le poignet qu'après que la pince 57 ait été appliquée sur celui-ci de sorte qu'il ne puisse pas changer accidentellement de position.The clamp 57 is produced so as to be able to pass between the clamps 39 and 45 to take up the wrist 6 on the turntable 53. The clamps 39 and 45 do not let go of the wrist until after the clamp 57 has been applied thereto so that it cannot accidentally change position.

Le poignet est amené sous les têtes des machines 44 et 48 par la pince 57 en glissant sur le plateau 53 et sur la table 79, le trajet des points A et B étant représenté sur la figure 5 par les lignes 43 et 47. Dans la table 79 est ménagée une goulotte 66 prolongeant la goulotte 49 du plateau 53 lorsque celui-ci a effectué une rotation de 90° (figure 6) et dans laquelle se déplace la boucle formée par le poignet pendant son transfert du plateau 53 aux machines 44 et 48.The wrist is brought under the heads of the machines 44 and 48 by the clamp 57 by sliding on the plate 53 and on the table 79, the path of the points A and B being represented in FIG. 5 by the lines 43 and 47. In the table 79 is formed a chute 66 extending the chute 49 of the plate 53 when the latter has made a rotation of 90 ° (FIG. 6) and in which the loop formed by the wrist moves during its transfer from the plate 53 to the machines 44 and 48.

Lorsque le poignet 6 est muni de sa boutonnière et de son bouton, la pince 58 assure son évacuation vers un empileur 65. Cette pince maintient le poignet 6 d'un seul côté afin de lui permettre de se déployer en échappant à la goulotte 66, aidé en cela par le plan incliné 67 qui fait suite au fond plat des goulottes 49 et 66. En même temps qu'un poignet est évacué vers l'empileur, un autre poignet est amené par la pince 57 aux machines 44 et 48.When the wrist 6 is provided with its buttonhole and its button, the clamp 58 ensures its evacuation towards a stacker 65. This clamp holds the wrist 6 on one side only to allow it to deploy while escaping from the chute 66, helped in this by the inclined plane 67 which follows the flat bottom of the troughs 49 and 66. In at the same time as one wrist is evacuated towards the stacker, another wrist is brought by the clamp 57 to the machines 44 and 48.

Sur la figure 7, on voit un déflecteur 82 qui oblige les poignets 6 libérés par la pince 58 à tomber entre une grille 68 et un poussoir 69 de formes complémentaires. Les poignets 6 sont décalés latéralement et alternativement vers la gauche et vers la droite sous l'action d'un doigt 70 solidaire d'un vérin 71 de faible course pour éviter la superposition des boutons dans l'empileur.In Figure 7, we see a deflector 82 which forces the wrists 6 released by the clamp 58 to fall between a grid 68 and a pusher 69 of complementary shapes. The wrists 6 are offset laterally and alternately to the left and to the right under the action of a finger 70 secured to a cylinder 71 of short stroke to avoid the superposition of the buttons in the stacker.

L'escamotage vertical de la grille 68 est provoqué par un vérin 72, ce qui permet la mise en contact des poignets précédemment stockés avec le poignet 6 introduit entre grille 68 et poussoir 69. Une pression constante est assurée sur les poignets empilés par un chariot 75 roulant sur le plan de stockage de l'empileur 65 par l'intermédiaire de billes de roulement 76. Le poussoir 69 avance alors de quelques centimètres sous l'action du vérin 73 jusqu'au moment où il se trouve à l'aplomb de la grille 68. Le guidage du poussoir 69 est assuré par un système colonne- douillas à billes 74. La grille 68 remonte alors dans les empreintes correspondantes du poussoir 69. Ce dernier recule jusqu'à sa position de départ et l'empileur 65 est alors prêt à recevoir un nouveau poignet 6.The vertical retraction of the grid 68 is caused by a jack 72, which allows the wrists previously stored to be brought into contact with the wrist 6 inserted between grid 68 and pusher 69. Constant pressure is ensured on the wrists stacked by a carriage 75 rolling on the storage plane of the stacker 65 by means of rolling balls 76. The pusher 69 then advances a few centimeters under the action of the jack 73 until it is plumb with the grid 68. The pusher 69 is guided by a column-bush system 74. The grid 68 then rises in the corresponding imprints of the pusher 69. The latter moves back to its starting position and the stacker 65 is then ready to receive a new wrist 6.

L'ensemble du pilotage des éléments que l'on vient de décrire ainsi que la commande des têtes de machine peuvent être assurés par automate programmable ou système à microprocesseur. Chaque position de fin de course est détectée par capteur de proximité et transmis à l'automate par exemple. Dans la plupart des cas les mouvements rapides des vérins sont décélérés en fin de course par des amortisseurs hydrauliques.All of the control of the elements that have just been described as well as the control of the machine heads can be ensured by a programmable controller or microprocessor system. Each end position is detected by proximity sensor and transmitted to the PLC for example. In most cases, the rapid movements of the cylinders are decelerated at the end of the stroke by hydraulic shock absorbers.

L'ensemble des différents postes fonctionne avantageusement en régime automatique. Un seul opérateur est nécessaire pour l'insertion du poignet dans l'alimentateur de la machine de conformage.All the different stations work advantageously in automatic mode. A single operator is required to insert the wrist into the feeder of the conforming machine.

Une configuration en ligne du poste de surpiquage, du plateau tournant et du poste pose bouton-boutonnière permettrait d'éviter les butées escamotables. La disposition équerre de ces postes de part et d'autre du plateau tournant, décrite ci-dessus est néanmoins avantageuse au point de vue encombrement.An in-line configuration of the topstitching station, the turntable and the button-buttonhole station would avoid retractable stops. The square arrangement of these stations on either side of the turntable, described above is nevertheless advantageous from the point of view of space.

Les figures 8 à 10 montrent une autre forme de réalisation. Sur ces figures les éléments qui sont identiques à ou qui remplissent les mêmes fonctions que des éléments du mode de réalisation des figures 1 à 7 ont pour numéro de référence celui de l'élément correspondant au premier mode de realisation augmenté de 100. Pour ne pas compliquer les dessins, les moyens d'amenée du poignet à la machine de surpiquage, les moyens de transfert du poignet entre cette machine et le plateau et entre celui-ci et les machines à coudre le bouton et à former la boutonnière et les moyens pour évacuer le poignet terminé n'ont pas été représentés.Figures 8 to 10 show another embodiment. In these figures, the elements which are identical to or which fulfill the same functions as elements of the embodiment of FIGS. 1 to 7 have for reference number that of the element corresponding to the first embodiment increased by 100. In order not to complicate the drawings, the means of bringing the wrist to the stitching machine, the means of transferring the wrist between this machine and the plate and between the latter and the button sewing machines and in forming the buttonhole and the means for evacuate the completed wrist were not shown.

Dans ce mode de réalisation, la machine de surpiquage 124 et les machines à coudre le bouton et faire la boutonnière 144 et 148 sont disposées en ligne. En conséquence, pour un type de poignet, par exemple un poignet droit, il ne sera pas nécessaire de faire tourner le plateau 153 avant de transférer le poignet aux machines 144 et 148 et pour l'autre type de poignet il faudra faire tourner le plateau de 180°.In this embodiment, the topstitching machine 124 and the button and buttonhole sewing machines 144 and 148 are arranged in line. Consequently, for one type of wrist, for example a straight wrist, it will not be necessary to rotate the plate 153 before transferring the wrist to the machines 144 and 148 and for the other type of wrist it will be necessary to rotate the plate 180 °.

Les doigts 135 servant à positionner le poignet de telle sorte que la ligne AB coïncide avec le diamètre 137 du plateau sont portés par ce dernier. Les doigts sont montés rotatifs sur un arbre 200 disposé sous le plateau 153 parallèlement au diamètre 137 et dont les extrémités sont supportés par des coulisseaux 202 montés sur des tiges horizontales 204 disposées perpendiculairement à l'arbre 200. Les déplacements de l'arbre 200 et des doigts 135 parallèlement aux tiges 204 sont assurés par un vérin 136.The fingers 135 used to position the wrist so that the line AB coincides with the diameter 137 of the plate are carried by the latter. The fingers are rotatably mounted on a shaft 200 arranged under the plate 153 parallel to the diameter 137 and the ends of which are supported by slides 202 mounted on horizontal rods 204 arranged perpendicularly to the shaft 200. The displacements of the shaft 200 and fingers 135 parallel to the rods 204 are provided by a jack 136.

Les doigts 135 font saillie sur le dessus du plateau 153 à travers des fentes 206 découpées dans celui-ci et parallèles aux tiges 204. Des contrepoids 208 et des butées limitant la rotation des doigts sur l'arbre 200 sous l'action de ces contrepoids maintiennent normalement les doigts en position verticale ; les contrepoids pourraient être remplacés par des ressorts.The fingers 135 protrude from the top of the plate 153 through slots 206 cut therefrom and parallel to the rods 204. Counterweights 208 and stops limiting the rotation of the fingers on the shaft 200 under the action of these counterweights normally hold the fingers upright; the counterweights could be replaced by springs.

Le déplacement de l'équipage mobile constitué par les doigts 135, l'arbre 200 et les coulisseaux 202 vers le centre du plateau est limité par des butées réglables. C'est au cours de ce déplacement que les doigts poussent le poignet pour amener la ligne A-B du poignet en coïncidence avec le diamètre 137 du plateau. Le déplacement en sens inverse de cet équipage mobile amène les doigts 135 en butée contre les extrémités des fentes 206 les plus éloignées du centre du plateau 153, puis provoque le basculement des doigts, qui tournent sur l'arbre 200, et leur éclipsage sous le plateau. Un système de verrouillage permet de rendre un ou plusieurs doigts inactifs en les maintenant sous le plateau pendant toute la course de l'équipage mobile.The movement of the movable assembly constituted by the fingers 135, the shaft 200 and the slides 202 towards the center of the plate is limited by adjustable stops. It is during this movement that the fingers push the wrist to bring the line A-B of the wrist in coincidence with the diameter 137 of the plate. The displacement in the opposite direction of this movable assembly brings the fingers 135 into abutment against the ends of the slots 206 furthest from the center of the plate 153, then causes the fingers, which rotate on the shaft 200, to tilt and eclipse them under the tray. A locking system makes it possible to make one or more fingers inactive by keeping them under the plate during the entire course of the moving assembly.

Un bras mobile 210 muni d'une pince 212 et manoeuvrable par un vérin 214 permet de déplacer le poignet parallèlement au diamètre 137 après que la pince ait été appliquée sur le poignet par un vérin 216 qui fait basculer le bras.A movable arm 210 provided with a clamp 212 and maneuverable by a jack 214 makes it possible to move the wrist parallel to the diameter 137 after the clamp has been applied to the wrist by a jack 216 which causes the arm to tilt.

Des pinces 218 actionnéees par des verins 220 montées sur des potences fixées sur le plateau permettent de maintenir le poignet en position sur le plateau pendant sa rotation.Clamps 218 actuated by jacks 220 mounted on brackets fixed on the plate keep the wrist in position on the plate during its rotation.

Deux cellules photoélectriques 222 sont placées dans des lumières 224 ménagées dans le plateau, parallèlement au diamètre 137, de façon à affleurer la face supérieure du plateau. Ces cellules sont disposées symétriquement par rapport au diamètre 226 perpendiculaire au diamètre 137. Chaque cellule est associée à une source lumineuse de sorte qu'elle est excitée chaque fois qu'une surface formant écran réfléchissant est placé au-dessus d'elle, sur le plateau. La position des cellules dans les lumières est reglable.Two photoelectric cells 222 are placed in slots 224 formed in the tray, parallel to the diameter 137, so as to be flush with the upper face of the tray. These cells are arranged symmetrically with respect to the diameter 226 perpendicular to the diameter 137. Each cell is associated with a light source so that it is excited each time a surface forming a reflecting screen is placed above it, on the tray. The position of cells in lights is adjustable.

Contrairement à la machine 148, qui est montée à poste fixe comme dans le mode de réalisation précédent, la machine 144 est montée sur une table 228 munie de guides déplaçables sur des barres 230 disposées perpendiculairement à la direction de déplacement du poignet entre la machine 124, le plateau 153 et les machines 144 et 148. Un groupe motoréducteur 232 dont le pignon de sortie engrène avec une crémaillère solidaire de la table 228 permet de déplacer cette dernière le long des barres 230.Unlike the machine 148, which is mounted in a fixed position as in the previous embodiment, the machine 144 is mounted on a table 228 provided with movable guides on bars 230 arranged perpendicular to the direction of movement of the wrist between the machine 124 , the plate 153 and the machines 144 and 148. A geared motor group 232 whose output pinion meshes with a rack fixed to the table 228 makes it possible to move the latter along the bars 230.

Une potence 234 fixée sur la table 228 porte à son extrémité libre une cellule photoélectrique 236 associée à une source lumineuse. Le point d'impact sur le plateau des rayons lumineux émis par cette source est situé sur le diamètre 137 et décrit une portion de ce diamètre lorsque la machine 148 se déplace alors que le plateau se trouve dans l'une ou l'autre de ses positions fixes d'arrêt. Ces deux portions de la surface du plateau sont recouvertes d'un revêtement réfléchissant, de sorte que le courant émis par la cellule, qui est normalement excitée par les rayons réfléchis sur le plateau, diminue d'intensité quand un objet formant écran est placé sous le point d'impact des rayons incidents.A bracket 234 fixed on the table 228 carries at its free end a photoelectric cell 236 associated with a light source. The point of impact on the plate of the light rays emitted by this source is located on the diameter 137 and describes a portion of this diameter when the machine 148 is moving while the plate is in one or the other of its fixed stop positions. These two portions of the surface of the tray are covered with a reflective coating, so that the current emitted by the cell, which is normally excited by the rays reflected on the tray, decreases in intensity when an object forming a screen is placed under the point of impact of the incident rays.

Pour permettre les déplacements de la machine 144, on doit laisser subsister entre sa table et celle de la machine 148, un espace vide. Pour fermer cet espace et soutenir le poignet pendant la pose du bouton et la fabrication de la boutonnière, on utilise des volets pivotants 238 (figure 10) solidaires d'un arbre horizontal 240 dont la rotation est commandée par un vérin 242 pour déplacer les volets entre une position horizontale, dans le plan des tables des machines 144 et 148 et une position verticale, au-dessous de ce plan. Les volets sont indépendants les uns des autres et chacun d'eux est rendu solidaire de l'arbre 240 par un verrou constitué par une bille 244 normalement maintenue dans une cavité 246 de l'arbre par ressort.To allow movement of the machine 144, an empty space must be left between its table and that of the machine 148. To close this space and support the wrist during the fitting of the button and the manufacture of the buttonhole, pivoting flaps 238 are used (FIG. 10) secured to a horizontal shaft 240 whose rotation is controlled by a jack 242 to move the flaps between a horizontal position, in the plane of the machine tables 144 and 148 and a vertical position, below this plane. The flaps are independent of each other and each of them is made integral with the shaft 240 by a latch constituted by a ball 244 normally held in a cavity 246 of the shaft by spring.

Une butée 248 solidaire de la table de la machine 144 peut interdire la rotation vers le haut d'un ou plusieurs volets, suivant la position de la machine. Lorsque cette butée se trouve devant un volet, la bille 244 de ce volet se dégage de la cavité 246 quand on fait tourner l'arbre 240 et seuls les autres volets sont amenés en position horizontale.A stop 248 integral with the table of the machine 144 can prevent the upward rotation of one or more flaps, depending on the position of the machine. When this stop is located in front of a flap, the ball 244 of this flap emerges from the cavity 246 when the shaft 240 is rotated and only the other flaps are brought into a horizontal position.

Pour expliquer le fonctionnement de l'ensemble décrit ci-dessus, on supposera tout d'abord que le poignet est amené sur le plateau dans la position représentée sur la figure 8, c'est-à-dire que le point A où doit être fixé le bouton se trouve du côté de la machine 144 à coudre le bouton et, par conséquent, le point B où doit être formée la boutonnière se trouve du côté de la machine 148. Le poignet est amené de la machine de surpiquage 124 au plateau 153 par un bras de transfert tel que celui décrit en référence à la figure 4. Généralement, ce bras abandonnera le poignet sur le plateau dans une position telle que la ligne A-B ne coïncidera pas avec le diamètre 137. Cette coïncidence est réalisée au moyen des doigts 135 qui sont déplacés par le vérin 136 et poussent le poignet pour l'amener en position correcte. Lorsque cette opération est terminée, la pince 212 est appliquée sur le poignet et le bras 210, qui était en position rétractée, est déplacé vers le centre du plateau 153 en entraînant le poignet. Lorsque le bord du poignet situé du côté du bras 210 arrive au niveau de la cellule 222 située du même côté, celle-ci qui était jusqu'alors recouverte par le poignet détecte une diminution de l'énergie lumineuse réfléchie et le signal résultant commande l'arrêt du bras 210, le serrage des pinces 218, la levée de la pince 212 et le retrait du bras 210 ; le point B est alors aligné avec l'axe 178 de la machine 148. La machine 144 est alors déplacée, au moyen du moteur 232, jusqu'à ce que la cellule 236 détecte l'autre bord du poignet par variation d'intensité de la lumière réfléchie. La cellule commande alors l'arrêt du moteur 232, et les volets 238, qui étaient éclipsés, sont ramenés en position horizontale. Le point A est alors aligné avec l'axe 177 de la machine 144. Une pince analogue à la pince 57 du premier mode de réalisation vient alors s'appliquer sur le poignet, les pinces 218 sont écartées et le poignet est transféré aux machines 144 et 148.To explain the operation of the assembly described above, it will first be assumed that the wrist is brought to the plate in the position shown in FIG. 8, that is to say that point A where must be attached the button is on the side of the button sewing machine 144 and, therefore, point B where the buttonhole is to be formed is on the side of the machine 148. The wrist is brought from the topstitching machine 124 to the plate 153 by a transfer arm such as that described with reference to FIG. 4. Generally, this arm will abandon the wrist on the plate in a position such that the line AB will not coincide with the diameter 137. This coincidence is achieved by means of the fingers 135 which are moved by the jack 136 and push the wrist to bring it into the correct position. When this operation is finished, the clamp 212 is applied to the wrist and the arm 210, which was in the retracted position, is moved towards the center of the plate 153 by driving the wrist. When the edge of the wrist located on the side of the arm 210 arrives at the level of the cell 222 situated on the same side, the latter which was hitherto covered by the wrist detects a reduction in the reflected light energy and the resulting signal controls the stopping the arm 210, tightening the clamps 218, lifting the clamp 212 and withdrawing the arm 210; point B is then aligned with axis 178 of machine 148. Machine 144 is then moved, by means of motor 232, until cell 236 detects the other edge of the wrist by varying the intensity of reflected light. The cell then controls the stopping of the motor 232, and the flaps 238, which were eclipsed, are brought back to a horizontal position. The point A is then aligned with the axis 177 of the machine 144. A pliers similar to the pliers 57 of the first embodiment is then applied to the wrist, the pliers 218 are separated and the wrist is transferred to the machines 144 and 148.

Si le poignet arrive sur le plateau 153 dans la position inverse, c'est-à-dire si le point A est du côté de la machine 148 et le point B du côté de la machine 144, il faut le faire tourner de 180° pour l'amener en position correcte. Le positionnement le long du diamètre 137 au moyen des doigts 135 est réalisé comme dans le premier cas. Le poignet est ensuite poussé par le bras 210, qui se déplace vers le centre du plateau, mais dans ce cas, on utilise l'autre cellule 222, c'est-à-dire celle qui est située du côté de la machine 144 pour détecter l'autre bord du poignet. Lorsque ce bord arrive au niveau de cette cellule, le bras 210 est arrêté, les pinces 218 appliquées sur le poignet, la pince 212 relevée et le bras 210 rétracté ; puis on fait tourner le plateau 153 de 180° au moyen du vérin rotatif 83. On se trouve alors ramené au cas précédent et les opérations suivantes sont les mêmes : déplacement de la machine 144 qui se positionne par rapport au bord du poignet situé de son côté, mise en place des volets 238, relevage des pinces 218 et transfert du poignet aux machines 144 et 148. Le plateau 153 est alors ramené dans sa position initiale par rotation de 180° en sens inverse et un nouveau poignet peut y être chargé.If the wrist arrives on the plate 153 in the reverse position, that is to say if point A is on the side of the machine 148 and point B on the side of the machine 144, it must be rotated 180 ° to bring it to the correct position. Positioning along the diameter 137 by means of the fingers 135 is carried out as in the first case. The wrist is then pushed by the arm 210, which moves towards the center of the plate, but in this case, the other cell 222 is used, that is to say the one located on the side of the machine 144 for detect the other edge of the wrist. When this edge arrives at this cell, the arm 210 is stopped, the clamps 218 applied to the wrist, the clamp 212 raised and the arm 210 retracted; then the plate 153 is rotated 180 ° by means of the rotary actuator 83. We are then brought back to the previous case and the following operations are the same: movement of the machine 144 which is positioned relative to the edge of the wrist located on its side, setting up the flaps 238, lifting the clamps 218 and transferring the wrist to the machines 144 and 148. The plate 153 is then returned to its initial position by rotation of 180 ° in the opposite direction and a new wrist can be loaded there.

Au lieu de déplacer la machine à coudre le bouton, pour la positionner par rapport au bord du poignet, on pourrait évidemment déplacer la machine à faire la boutonnière, l'autre machine étant alors fixe.Instead of moving the button sewing machine, to position it relative to the edge of the wrist, we could obviously move the buttonhole machine, the other machine then being stationary.

Bien que l'invention ait été décrite en référence à deux formes particulières de réalisation, il va de soi qu'elle n'y est en rien limitée et que des modifications peuvent y être apportées sans sortir de son domaine.Although the invention has been described with reference to two particular embodiments, it goes without saying that it is in no way limited thereto and that modifications can be made thereto without departing from its field.

On pourra, bien entendu, remplacer l'un quelconque des moyens décrits par un moyen techniquement équivalent.We can, of course, replace any of the means described by a means technically equivalent.

L'invention couvre donc, outre les exemples décrits, leurs différentes variantes de réalisation possibles, dans les limites définies par les revendications.The invention therefore covers, in addition to the examples described, their various possible alternative embodiments, within the limits defined by the claims.

Claims (27)

1. Installation for producing shirt cuffs consisting of an overcast stitching machine (24, 124), a buttonhole forming machine (48, 148), a cuff button sewing machine (6), means to bring the cuff (6) to the overcast stitching machine, means to move the cuff (6) away from the overcast stitching machine, means to position at least one of the cuff ends with respect to at least one of the working heads of the buttonhole forming and button sewing machines, the said heads facing each other, means to bring the cuff (6) below the said heads and holding it in the right position and means to move the cuff (6) away from the buttonhole forming and button sewing machines, characterized by the fact that the means to position at least one end of the cuff (6) includes a rotary tray (53, 153) having a vertical axis and which is positioned on the same plane as the table of the overcast stitching machine (24, 124) and button sewing and buttonhole forming machines (44-48,144-148), this tray permitting to orientate the cuff (6) so that it arrives with the proper orientation or an orientation at 180° with respect to the latter under the heads of the said machines (44-48, 144-148), and a pushing device which moves the cuff on the said tray to bring the cuff button- buttonhole line (AB) in coincidence with diameter (37, 137) of the tray, the said device being fitted with several retractable fingers (35, 135) which are movable perpendicularly to the said diameter.
2. Installation according to claim 1, characterized by the fact that the means to position at least one end of the cuff (6) are so arranged as to bring closer to each other the ends of the said cuff in order to bring them to a preset distance from each other, the said distance corresponding to the distance between the working heads of the buttonhole forming and button sewing machines (48-44).
3. Installation according to claim 1, characterized by the fact that the means to position at least one end of the cuff (6) are so arranged as to move the said cuff lenghtwise to position one of its ends with respect to the working head of one of the buttonhole forming and button sewing machines (148 or 144), the said machine being stationary, to detect the other end of the cuff (6) by a detection means (236), and to control, using the said means, the displacement of the other of said machines (144 or 148) which is mobile, in order to adjust the distance between the working heads of these machines to the cuff size (6).
4. Installation according to claim 1, characterized by the fact that the pushing device (35) is fixedly mounted.
5. Installation according to claim 1, characterized by the fact that the pushing device (135) is supported by the rotary tray (153).
6. Installation according to claim 5, characterized by the fact that the fingers (135) of the pushing device are rotatably mounted on a shaft (200) located under the tray, parallel to the said diameter (137) and that they protrude above the tray through slots (206) perpendicular to the said diameter (137), these fingers being movable in the said slots by means of a cylinder jack (136) acting on the said shaft.
7. Installation according to claim 6, characterized by the fact that the said fingers (135) are normally held in vertical position by counterweights (208) or springs and that they rock to retract when they are pushed by the said cylinder jack and abut against an end of the said slots.
8. Installation according to claim 2 and any one of claims 4 to 7, characterized by the fact that the means to position at least one end of the cuff (6) comprises two clamps (39, 45) supported by the rotary tray and moved by carriages (40, 46) to bring the cuff ends closer to each other until the distance that separates them corresponds to the distance between the working heads of the button sewing and buttonhole forming machines (44, 48).
9. Installation according to claim 8, characterited by the fact that during bringing of the cuff ends closer to each other, the cuff forms a loop which goes into a channel (49) made into the said rotary tray (53) along a diameter perpendicular to the direction of travel of the said clamps (39,45).
10. Installation according to claim 9, characterized by the fact that it comprises a finger (50) which exerts a force onto the cuff to push it into the said channel (49) and form the said loop.
11. Installation according to claim 3 and any one of claims 4 to 7, characterized by the fact that the said means to position one of the cuff ends include a clamp (212) adapted to engage the cuff and move it lengthwise on the tray and devices (222) supported by the tray to detect a cuff edge and cause the clamp to stop when this edge is positioned correctly with respect to one of the button sewing and buttonhole forming machines (144,148).
12. Installation according to claim 11, characterized by the fact that the detection means (236) for the other cuff end is mounted on the free end of a bracket (234), the foot of which is integral with the mobile machine (144) and which overhangs the tray.
13. Installation according to claim 11 or 12, characterized by the fact that the rotary tray (153) is fitted with two clamps (218) controlled by two cylinder jacks (220) to hold the cuff on the tray.
14. Installation according to claim 11, 12 or 13, characterized by the fact that it comprises several flaps (238) which are mounted so as to pivot around a horizontal axis in such a way as to be able to fit between the button sewing and 0 buttonhole forming machines (144, 148), at the level of the tables of these machines, and to retract by pivoting downwards to allow the displacement of the mobile machine (144).
15. Installation according to any one of the preceding claims, characterized by the fact that the directions of travel of the cuff between the overcast stitching machine (124) and the rotary tray (153) on the one hand, and between the tray and the button sewing and buttonhole forming machines (144, 148) on the other hand, are parallel, and by the fact that means (183) are provided to rotate the tray between two positions at 180° from each other and set by limit stops.
16. Installation according to any one of claims 1 to 14, characterized by the fact that the directions of travel of the cuff between the overcast stitching machine (24) and the rotary tray (53) on the one hand, and between the said tray and the button sewing and buttonhole forming machines (44,48) on the other hand, are perpendicular, and by the fact that means (83) are provided to rotate the tray by 90° from a central position set by retractable stops (54), to either one of two other positions at 90° from the central position and which are set by limit stops (81).
17. Installation according to any one of the previous claims, characterized by the fact that it further comprises a forming machine (34) located upstream of the overcast stitching machine (24) and means to transfer the cuff (6) from the forming machine to the overcast stitching machine which includes a prehension device capable of grabbing the cuff (6) and of bringing it to the level of the table (64) of the overcast stitching machine (24) where it is taken over by a clamp (12 or 16), the said prehension device consisting of a pair of clamps (8) controlled by two electro-magnets (9) mounted on a baseplate (23) which is integral with the rotor of a rotary cylinder jack (10) capable of turning over the said baseplate and of reversing the position of the cuff (6) to have it taken over by the means used to bring the cuff to the overcast stitching machine (12,16).
18. Installation according to claim 17, characterized by the fact that provision has been made for a storage space (34) between the prehension device and the overcast stitching machine (24).
19. Installation according to claim 18, characterized by the fact that a clamp (12) controlled by a pneumatic cylinder jack (13) takes over the cuff (6) to bring it to a section of the storage space (34) and a detector (17) integral with the clamp (12) is provided to detect the presence of the cuffs (6), the said detector causing the said clamp to stop in the section of the storage space (34) immediately preceding an occupied one.
20. Installation according to claim 19, characterized by the fact that each cuff (6) released by the clamp (12) is held on the table (63) of the storage space (34) by suction openings (52).
21. Installation according to claim 19 or 20, characterized by the fact that the step-by-step advance of the cuff (6) is controlled by fingers (21) integral with a shaft (15) moved lengthwise by a cylinder jack (20), the rotation of this shaft being controlled by a cylinder jack (18) to apply the fingers onto the cuff.
22. Installation according to any one of the preceding claims, characterized by the fact that the means to move the cuff (6) away from the overcast stitching machine (24) consists of a clamp support arm (26) which is pivotable about a horizontal axis (28) by means of a cylinder jack (29).
23. Installation according to any one of the preceding claims, characterized by the fact that the means to bring the cuff (6) below the working heads (78, 77) of the buttonhole forming and button sewing machines (48, 44), to hold the said cuff in position and to move it away from the said machines, includes a transfer arm (56) fitted with two clamps (57, 58) controlled by a single cylinder jack (59), these clamps and this cylinder jack (62) being mounted on a carriage (60) driven by a cylinder jack (62), and by the fact that one of the clamps (57) brings the cuff (6) below the said working heads, while the other clamp (58) ensures the evacuation of the said cuff fitted with its button and buttonhole.
24. Installation according to claims 9 and 23, characterized by the fact that a channel (66) capable of receiving the loop formed by the cuff (6) is fitted in the table (79) of the button sewing and buttonhole forming machines (44 and 48), and by the fact that the said other clamp (58) which ensures the evacuation of the cuff holds it on one side only in order to let it spread out flat on the said table (70) while leaving the said channel (66), the bottom of which consists of an inclined plane (67) downstream of the said button sewing and buttonhole forming machines.
25. Installation according to claim 23 or 24, characterized by the fact that it further comprises a storage piling-up device (65) including a grate (68) and a pusher (69) of complementary forms, and means for feeding the said device, the said means including the said other clamp (58) and a deflector (82).
26. Installation according to claim 25, characterized by the fact that it comprises a finger (70) actuated by a cylinder jack (71) which moves the cuffs sideways and alternately in one direction and in the other when they are between the grate (68) and the pusher (69) of the piling-up device.
27. Installation according to claim 25 or 26, characterized by the fact that cylinder jacks (72) and (73), respectively controlling the retraction of the grate (68) and the advance of the pusher (69) in the plane of the said grate, are used to insert the cuff (6) into the pile, the grate (68) and the pusher (69) being then returned to their initial positions, while a constant pressure is applied onto the piled up cuffs, by a carriage (75) running by means of balls (76) on the storage plane of the piling-up device (65).
EP84401048A 1983-05-25 1984-05-21 Apparatus for producing shirt cuffs Expired EP0130096B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84401048T ATE30206T1 (en) 1983-05-25 1984-05-21 PLANT FOR MANUFACTURING SHIRT CUFFS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8308602 1983-05-25
FR8308602A FR2546380A1 (en) 1983-05-25 1983-05-25 INSTALLATION FOR THE MANUFACTURE OF SHIRT CUFFS

Publications (3)

Publication Number Publication Date
EP0130096A2 EP0130096A2 (en) 1985-01-02
EP0130096A3 EP0130096A3 (en) 1985-06-19
EP0130096B1 true EP0130096B1 (en) 1987-10-14

Family

ID=9289149

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84401048A Expired EP0130096B1 (en) 1983-05-25 1984-05-21 Apparatus for producing shirt cuffs

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US (1) US4592295A (en)
EP (1) EP0130096B1 (en)
JP (1) JPS59232576A (en)
AT (1) ATE30206T1 (en)
DE (1) DE3466753D1 (en)
FR (1) FR2546380A1 (en)

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Also Published As

Publication number Publication date
DE3466753D1 (en) 1987-11-19
FR2546380A1 (en) 1984-11-30
ATE30206T1 (en) 1987-10-15
EP0130096A2 (en) 1985-01-02
EP0130096A3 (en) 1985-06-19
US4592295A (en) 1986-06-03
JPS59232576A (en) 1984-12-27

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