EP0306460A1 - Process and machine for automatically transferring pantihose and similar produce from a toe closing sewing machine to an ironing machine - Google Patents

Abstract

Tights are transferred from a sewing machine to a press by gripping their elasticated hem, pulling it off a pair of tubes of the sewing machine, turning it inside out while drawing the legs of the tights from within the tubes, stretching the hem into a vertical rectangle, turning it to the horizontal with the legs hanging beneath it, turning it to the vertical so that the seams of the legs are suspended in the vertical median plane of a pair of formers of the press, releasing the hem, and lifting it around the formers to thread the legs onto them. A machine for carrying out the process is also claimed.

Description

The present invention relates to a method and a machine for automatically transferring tights, stockings and socks from a machine which sews the tips to a machine which passes them.

A device for transferring tights from a carousel-type spike sewing machine with horizontal axis provided with several pairs of horizontal tubes to a carousel-type ironing machine is known from European patent No. 057.055. vertical axis provided with several pairs of horizontal flat shapes, arranged in a fan, which are provided with thermal resistances and further produced in two hinged elements to allow the closing of the book type. These two machines are positioned reciprocally so that the loading station of the ironing machine is located opposite the unloading station of the sewing machine and with a pair of shapes of one coplanar and aligned with a pair of tubes on the other. The transfer device proper comprises a carriage, which is movable horizontally and alternately between said stations of the two machines and provided with hooks to engage by pushing the elastic edge of the pantyhose to be transferred. During the course of said carriage towards the ironing machine, the body of the pantyhose is firstly turned over and then transported until it slides over the corresponding pair of shapes of the ironing machine. Such a transfer device has the disadvantage of only allowing a slow working rhythm due to the empty stroke of the transporting carriage and of constituting a rigid interaction system between the machine which sews the points and that which passes over the tights, which has the consequence that stopping one of them leads to the forced stopping of the other, thus drastically reducing the performance of the whole system.

The present invention aims to eliminate the drawbacks of the device mentioned above, by making a machine which transfers the tights, stockings and socks, from a machine which sews the tips of the carousel type with vertical axis, to a machine ironing of the type provided with a pair of fixed vertical shapes, and which makes it possible to make the operation of each of said machines independent from the fact that provision is made for manual loading of the transfer machine in the event of the machine stopping. sew the spikes and the possibility of unloading the tights from the sewing machine in a storage and recovery store, in case the ironing machine stops.

This result has been achieved in accordance with the present invention by adopting the idea of using an operating process, by recalling that what relates to tights is also valid for stockings and socks, which comprises, in succession, the following operations :
- grip of the pantyhose by the elastic edge of the body, transport out of the unloading station of the sewing machine, and return of the elastic edge and the whole pantyhose;
transfer of the elastic edge of the tights thus turned over onto gripping means which move intermittently towards the ironing machine, widening in a vertical rectangle and successive orientation in a horizontal plane of the elastic edge thus widened and in a predetermined position in correspondence the ironing machine loading station;
- removal of the elastic edge of the pantyhose thus widened and oriented and transfer of the pantyhose with movement from the bottom upwards so that the legs are threaded onto the two fixed vertical shapes of said ironing machine.

According to a preferred embodiment, a machine for the automatic transfer of the tights from a machine which sews the tips to a machine which iron the tights according to said method in accordance with the invention, comprises:
- an arm provided with two clips, acting in correspondence of the two lateral ends of the elastic edge of the body of the pantyhose which is threaded on a pair of tubes of the sewing machine spikes in its unloading station, which arm is fixed on a trolley with reciprocating rectilinear movement to allow taking and carrying out of the spikes the said elastic edge of the sticky present, thus turning over said elastic edge and maintaining the tights completely turned over and in the hanging position;
- a horizontal table rotating intermittently and provided with several operational stations, which supports an identical number of horizontal arms with vertically separable elements, each of which makes it possible to take the elastic edge of the pantyhose kept stretched by said pair of pliers out of the sewing machine the tips, to widen it thus in the shape of a rectangle in a vertical plane while the tights are in the hanging position, to make it then turn around a horizontal axis and around a vertical axis to allow to have the elastic edge pantyhose thus widened in a horizontal position and located below the two fixed vertical shapes of the ironing machine, the tips of which are oriented downwards, and simultaneously placing the seams of the pantyhose body in a vertical and median plane with respect to said shapes the ironing machine, so as to predispose the legs of the pantyhose for threading on said shapes;
- two arms provided with two horizontal teeth, parallel and horizontally separable, associated with a carriage with reciprocating vertical movement, in a position located behind the shapes of the ironing machine and during the downward stroke of which, said teeth are introduced inside the elastic edge of the pantyhose by removing it from the corresponding arm of the aforementioned turntable, and during the successive upward stroke of which, they position the bodies of the pantyhose around said shapes by threading the legs thereon; means being provided for discharging the pantyhose from said teeth.

The solution proposed according to the present invention allows the transfer of tights between two machines, one which sews the tips and the other which iron, while retaining the independence of operation of each; and this thanks to the possibility of automatic unloading of tights from the stitch sewing machine on a storage magazine and the possibility of manual loading of tights on an intermediate station of this machine, all with a very high work rate ( about 2.5 seconds per sticker).

• - la FIG. 1 représente la vue en plan d'ensemble d'une machine de transfert des collants en conformité avec l'invention, interposée entre une machine à coudre les pointes et une machine à repasser;
• - la FIG. 2 représente la vue latérale simplifiée de la machine de la Fig. 1;
• - la FIG. 3 représente, en vue de face, le détail d'une pince pour la prise du collant dans la station de déchargement de la machine à coudre les pointes, avant la prise;
• - la FIG. 4 représente la vue latérale de la pince de prise de la Fig. 3;
• - la FIG. 5 représente la pince de la Fig. 3 après la prise du bord élastique du collant;
• - les FIG. 6 et 6A représentent le détail du bord élastique du collant respectivement, avant et après son retournement effectué par la paire de pinces, selon la Fig. 3;
• - la FIG. 7 représente, en vue de face, le détail d'un bras avec éléments écartables de la table tournante de transfert, dans la première station (correspondant à la station de déchargement de la machine à coudre les pointes), avant de prendre le collant dans la position de la Fig. 6a;
• - la FIG. 8 représente la vue latérale du détail de la Fig. 7;
• - la FIG. 9 représente le détail de la Fig. 7 après la prise du collant de la position de la Fig. 6A;
• - la FIG. 10 représente la vue de face du détail de la Fig. 9;
• - la FIG. 11 représente la vue en plan détaillée de la table de transfert des collants de la machine à coudre les pointes à la machine à repasser;
• - la FIG. 12 représente la vue en plan détaillée du bras pourvu de dents pour l'enfilement du collant sur les formes de la machine à repasser, avant que celui-ci ne quitte le bras correspondant de la table de transfert;
• - la FIG. 13 représente la vue de face du bras de la Fig. 12;
• - la FIG. 14 représente la vue en plan du bras de la Fig 12 après que le collant a abandonné le bras correspondant de la table de transfert;
• - la FIG. 15 représente la vue de face du bras de la Fig. 14;
• - la FIG. 16 représente la vue en plan du bras de la Fig. 14 à proximité de la fin de course ascendante avec un extracteur du type oscillant;
• - la FIG. 17 représente la vue de face du bras de la Fig. 16;
• - la FIG. 18 représente la vue en plan détaillée du bras de la Fig. 14 à proximité de la fin de course ascendante avec un extracteur du type fixe;
• - la FIG. 19 représente la vue de face du bras de la Fig. 18;
• - la FIG. 20 représente le détail du bras de la Fig. 19 avec le collant déchargé sur les formes de la machine à repasser.

These advantages and characteristics of the invention, as well as others, will be more and better understood by each person skilled in the art in the light of the description which follows and with the aid of the appended drawings given by way of practical example of the invention. invention, but not to be considered in the limiting sense; drawings in which:

• - FIG. 1 shows the overall plan view of a pantyhose transfer machine in accordance with the invention, interposed between a stitch sewing machine and an ironing machine;
• - FIG. 2 shows the simplified side view of the machine of FIG. 1;
• - FIG. 3 shows, in front view, the detail of a pair of pliers for picking up the tights in the unloading station of the spike sewing machine, before setting;
• - FIG. 4 shows the side view of the gripper of FIG. 3;
• - FIG. 5 shows the clamp of FIG. 3 after taking the elastic edge of the pantyhose;
• - FIGS. 6 and 6A show the detail of the elastic edge of the pantyhose respectively, before and after it is turned over by the pair of pliers, according to FIG. 3;
• - FIG. 7 shows, in front view, the detail of an arm with separable elements of the rotary transfer table, in the first station (corresponding to the unloading station of the stitch sewing machine), before taking the sticky in the position of FIG. 6a;
• - FIG. 8 shows the side view of the detail of FIG. 7;
• - FIG. 9 shows the detail of FIG. 7 after taking the tights from the position of FIG. 6A;
• - FIG. 10 shows the front view of the detail of FIG. 9;
• - FIG. 11 shows the detailed plan view of the tights transfer table from the spike sewing machine to the ironing machine;
• - FIG. 12 shows the detailed plan view of the arm provided with teeth for threading the tights on the shapes of the ironing machine, before it leaves the corresponding arm of the transfer table;
• - FIG. 13 shows the front view of the arm of FIG. 12;
• - FIG. 14 shows the plan view of the arm in FIG. 12 after the pantyhose has abandoned the corresponding arm of the transfer table;
• - FIG. 15 shows the front view of the arm of FIG. 14;
• - FIG. 16 shows the plan view of the arm of FIG. 14 near the ascending limit switch with an oscillating type extractor;
• - FIG. 17 shows the front view of the arm of FIG. 16;
• - FIG. 18 shows the detailed plan view of the arm of FIG. 14 near the ascending limit switch with a fixed type extractor;
• - FIG. 19 shows the front view of the arm of FIG. 18;
• - FIG. 20 shows the detail of the arm of FIG. 19 with the tights discharged on the forms of the ironing machine.

The process for the automatic transfer of tights according to the invention, from a machine which sews the tips, for example of the type called "SOLIS 4", to a machine which passes again, for example of the "Wepamat" type, comprises, in succession, the following operations:
take the lateral ends of the stretched elastic edge of the tights of the sewing machine points in correspondence of its unloading station;
- transport the pantyhose out of the sewing machine with a horizontal movement, keeping the elastic edge oriented in a vertical plane;
- Turn over, that is from the wrong side up, said elastic edge thus stretched and the whole tights;
- grasp the elastic edge thus oriented of the pantyhose kept hanging out of the sewing machine;
- widening said elastic edge of the pantyhose in a rectangle by keeping it oriented in a vertical plane, while the pantyhose is in the suspended position during the intermittent transfer with curvilinear path, towards the ironing machine;
- rotate 90 ° around a horizontal axis, the elastic edge of the pantyhose thus widened to orient it in a horizontal plane with access to the interior of the pantyhose from above and to make it suitable for threading on the shapes vertical, located above, the ironing machine;
- Rotate the elastic edge thus oriented around a vertical axis so as to arrange the longitudinal seams of the pantyhose, before putting it on the shapes of the ironing machine, in a vertical median plane with respect to said shapes;
- lift the elastic edge thus oriented of the tights until threading the legs on the shapes of the ironing machine.

If the sewing machine stops, it is planned to manually load the machine which carries out the transfer of the tights, in a station on its approach course of the ironing machine.

In the event of the ironing machine stopping, the pantyhose will be unloaded at the exit of the sewing machine, straddling a storage magazine, for example of the type called "Solpark".

A machine for transferring the tights according to said method and with reference to FIG. 1 of the accompanying drawings in which it is indicated by LJ and is placed between a sewing machine T-tips of the type called "SOLIS 4" with the known device T1 for its automatic loading and an ironing machine W of the type called "Wepamat ", and it is essentially composed of:
A FIRST SECTION (A) provided in correspondence with the TS unloading station of the T-point sewing machine (reference to Fig. 2 e 6A), which includes:
- A horizontal track or rail 11 located above and parallel to the two tubes 1 for support and pneumatic reversal of the tights of the sewing machine spikes T, and of length greater than these;
- A carriage 12, movable with an alternating movement on said track;
- two clamps 13 supported by said carriage 12 and arranged so as to allow the taking of said elastic edge 5 ′ of the pantyhose 5 in the two points which are the most distant horizontally, and the points 14 of which are flat, one fixed and the other articulated: the simultaneous opening of each of the clamps being obtained by means of the rod 16 of a corresponding pneumatic cylinder 17, following its actuation programmed, and the simultaneous closing of each clamp being obtained by means of a corresponding return spring 18, following deactivation of the respective pneumatic cylinder 17; each clamp 13 being further slaved simultaneously to a 180 ° rotational movement towards the outside of the pantyhose around its own vertical axis to allow the elastic edge 5 ′ of the pantyhose 5 to be turned over after it has set.

A SECOND SECTION (B) provided between the unloading station TS of the sewing machine T and the loading station CW of the ironing machine W (reference to Figs. 2 and 7-11), which includes:
a bench 21 with several floors with a horizontal table 22 situated above and rotating intermittently, with stopping in several stations (for example six), one of which is located in correspondence with the unloading station TS of the sewing machine points T and one is located in correspondence with the loading station CW of the ironing machine W;
- Several supports 23 (in example six) angularly equidistant on said table 22 and subject to an alternating rotation of approximately 120 ° around the corresponding vertical axis, to be able to be oriented with the longitudinal axis radially disposed relative at the table, in relationship with the position to be assumed in the various stations of the table: for this purpose the vertical shaft 24 of each support 23 is provided in its lower part with a toothed wheel 25 engaged with a corresponding toothed wheel 26, which is provided a roller 27 installed in an annular groove 28 of the bench 21 and whose curvilinear contour is eccentric relative to the axis of the table 22;
- Each of said supports 23 is associated with a horizontal arm 29 provided with two uprights 30, the free end of which supports two juxtaposed nozzles 31, one fixed and the other movable on the corresponding upright 30 and which are intended to take the sticking clamps 13 above by simultaneous widening in rectangle of its elastic edge 5 ′; said arm 29 is further slaved to an alternating rotation of 90 ° on itself to allow said uprights 30 to be oriented vertically or horizontally;
a lever 32, slaved to a pneumatic cylinder 33 with programmed activation, located above said table 22 and fixed to said bench 21 to actuate the closure of the spouts 32 of the arm 29 which is in correspondence with the TS unloading station the T-point sewing machine; the opening of said spouts being obtained by their own weight or by means of known means with return spring, following deactivation of said pneumatic cylinder 33.

A THIRD SECTION (C), corresponding to the loading station CW of the ironing machine W (reference to Figs. 2 and 11-20), which includes:
a vertical structure 41 fixed, in position behind the forms 4 of the ironing machine W, with a track or rail 42 and a chain 43 closed in a ring on two wheels 44, the lower wheel taking the movement, with traditional means, of the same electric motor which rotates the table 22 of said second section B or of an independent electric motor;
- A carriage 45, sliding on said track 42, by means of said chain 43 and provided with two parallel arms 46 whose ends 46 ′ folded and juxtaposed, can be spread horizontally: for this purpose, said arms 46 are provided with toothing corresponding 47 in which engages a vertical toothed or grooved rod 48 corresponding passing through said carriage 45 and whose rotation, which is programmed in one direction or the other, determines in cooperation with a idler 49 disposed between said arms 46, the reconciliation or reciprocal distancing of their ends;
- A buffer type extractor 50, oscillating, placed laterally at at least one of the forms 4 of the ironing machine W, whose programmed intervention allows the unloading of the tights 5 from said arms 46; alternatively, the extractor can be of the fixed type with two stops 51 with two corresponding nozzles 52 blowing air on the adhesive 5 near said arms.

The operation is as follows. As soon as the T-point sewing machine transports a finished sticker 5 to the unloading station TS, that is to say with the sewn stitches, the two pliers 13 of the first section (A) take the elastic edge 5 ′ of the tights 5 which is stretched around the turning tubes 1 of the sewing machine the stitches T in the stitches having the maximum horizontal distance, the carriage thus moves towards and beyond the end of said tubes 1 and, while the suction of the legs 5˝ of the pantyhose inside the tubes causes it to turn over, it that is to say from the wrong side up, said clips 13, by turning on themselves 180 ° towards the outside of the pantyhose, effect the reversal of its elastic edge 5 ′. When said carriage 12 arrives at the end of the output stitching travel stroke of the stitches T, the two pairs of horizontal nozzles 31 of the arm 29 of the table 22 which is stopped in the first station S1 of the second section (B), are located inside the elastic edge of the pantyhose held by said clips, while the rest of the pantyhose is in the hanging position; after which, while the carriage 12 goes back towards the center of the stitch sewing machine T, the table 22, turning clockwise, transports the arm 29 with the tights into the second station S2 and after a pause, in the third station S3; between the third station S3 and the fifth station S5 of the table 22, the arm 29 rotates on itself 90 ° downwards and outwards of the table and the support 23 rotates on itself approximately 120 ° counterclockwise so that in the fifth station S5 of the table, the rectangle stretched edge of the pantyhose is horizontal and disposed below the tips of the shapes of the ironing machine W and with the opening facing upwards, while the seams of the body of the pantyhose, which is suspended, lie in the median vertical plane with respect to said forms 4.

At this point, the carriage 45 of the third section (C) of the machine, which is higher than the stretched edge of the pantyhose, and lower than the tips of forms 4 of the ironing machine W, descends and hardly the ends 46 ′ are inside the elastic edge 5 ′ of the pantyhose 5, these are separated by stretching the elastic edge of the pantyhose accordingly, which, while the carriage continues its downward travel, is removed from the spouts 31 arm 29 of the second section (B); successively, the carriage 45 rises until the legs 5˝ of the pantyhose 5 are threaded onto the forms 4; the rising end of the pantyhose, with the abandonment of the ends 46 ′, is determined by the activation of the extractor if it is of the pad type 50 or otherwise by the stop of the elastic edge 5 ′ of the pantyhose against the extractors fixed 51 arranged above.

Between the fifth and the first station of the table 22, the arm 29 is rotated on itself 90 ° upward and the support is rotated about its axis by about 120 ° clockwise to allow that, a once the support 23 brought back into said first station S1 of the table 22, the arm 29 with the spouts 31 correspondents is in the same starting position.

It is obvious that with the machine in nominal operation, at each stop of the table 22, a pantyhose is transferred from the sewing machine T-tips to a corresponding arm 29 of the table 22 while, simultaneously, another pantyhose is transferred. another arm 29 of the table on the ends 46 ′ of the arms 46 of the carriage 45 which is located in correspondence with the ironing machine.

In case of stopping of the T-point sewing machine, the arms 29 of the table 22 can be loaded by hand in the second station S2 of the table, while in the case of a stopping of the ironing machine W, the tights can be unloaded from the T-point sewing machine at a magazine 3 located below.

Finally, taking into account the fact that both the machine which sews the T points and the one which passes them can also work on stockings or socks, the machine which is the subject of the present invention also lends itself to the transfer of these manufactured products from the first to the second machine.

Claims (14)

1) Process for the automatic transfer of tights and similar manufactured products from a point sewing machine (T) of the carousel type with vertical axis, to an ironing machine (W) of the type provided with a pair of shapes vertical (4) fixed, characterized in that it comprises, in order, the following phases: in a first section (A) provided in correspondence with the unloading station (TS) of the needle sewing machine (T ): (a) - grasp the elastic edge (5 ′) of the pantyhose (5) which is stretched around a pair of tubes (1) of the stitch sewing machine (T); (b) - transporting out of said pair of tubes, the elastic edge of the tights thus stretched and oriented; (c) - turn over, that is from the wrong side up, the elastic edge of the pantyhose thus stretched and oriented while the suction of the legs (5˝) of the pantyhose (5) inside the tubes (1) complete the inversion at the place of all the tights; in a second section (B) provided downstream of the spike sewing machine (T) and upstream of the ironing machine (W): (d) - widen the elastic edge (5 ′) thus stretched and oriented in a vertical rectangle, while the rest of the tights are left hanging; (E) - rotate around a horizontal axis the elastic edge thus stretched of the pantyhose to have its opening in a horizontal position with access from above to the interior of the pantyhose; (f) - rotate the edge around a vertical axis elastic thus stretched of the pantyhose to arrange the longitudinal seams of the pantyhose suspended in a vertical median plane with respect to the pair of vertical shapes (4) of the ironing machine; (g) - return to the initial position the means for supporting the elastic edge of the pantyhose after the transfer of the pantyhose to the ironing machine (W);
in a third section (C) provided in correspondence with the ironing machine (W): (h) -lift the elastic edge (5 ′) thus oriented with the tights, around the pair of shapes (4) of the ironing machine (W) to obtain the threading, complete or not, of the legs (5˝) tights on said forms (4). 2) Method according to claim 1, characterized in that the phases (a-d) are executed in succession, in a first operational section (S1). 3) Method according to claim 1, characterized in that the phases (ef) are executed during the passage respectively from a third (S3) to a fourth (S4) and from a fourth to a fifth (S5) operational section . 4) Method as claimed in claim 1, characterized in that phase (h) is executed in a fifth operational station (S5) and simultaneously with the phases (a-d). 5) Method according to claim 1, characterized in that phase (g) is executed during the passage respectively from a fifth (S5) to a sixth (S6) and from a sixth to a first (S1) operational station and simultaneously with the phases (ef). 6) Method according to claim 1, characterized in that along the phases (a-f), provision is made to manually position the elastic edge (5 ′) of the pantyhose in the position corresponding to the end of this phase. 7) Machine for the automatic transfer of tights and similar manufactured products, from a machine (T) which sews the tips to a machine (W) which passes, according to the process according to one or more of Claims 1 to 6, characterized in that that it is composed of:
- a first section (A) corresponding to the unloading station (TS) of a spike sewing machine (T) and comprising:
- a carriage (12) slaved to an alternating rectilinear movement on a horizontal track (11) located above the turning tubes (1) of the sewing machine (T), and which is provided with an arm with two pliers (13) for taking the elastic edge (5 ′) of the tights (5) supported by said tubes (5) in the stitches having the maximum horizontal interdistance, for transporting said stitches (T) out of the sewing machine elastic edge (5 ′) and turn it over while the pneumatic suction of the legs (5˝) of the pantyhose inside said turning tubes (1) makes it possible to turn over the whole pantyhose (5);
- a second section (B) disposed between the station (TS) for discharging the spike sewing machine (T) and the loading station (CW) for the ironing machine (W) and comprising:
- a bench (21) with a horizontal table (22) rotating intermittently around its own vertical axis and with stop in six operational stations, on which is mounted an identical number of supports (23), each with a horizontal arm (29 ) carrying two pairs of spouts (31) vertically separable to take the elastic edge (5 ′) of the pantyhose (5) of the pair of pliers (13) of the first section (A), thus widening it in the shape of a rectangle vertical leaving the pantyhose in the suspended position: said arm (29) and said support (23) being able to rotate around their own axes for first of all, place the elastic edge (5 ′) of the pantyhose thus stretched in a horizontal position and located below the tips of the shapes (4) of the ironing machine (W), and with the longitudinal seams of the tights (5) arranged in a vertical median plane with respect to said shapes (4) and successively, resume the initial position of the first station on the table;
- a third section (C) corresponding to an ironing machine (W) and comprising:
- a carriage (45) slaved to an alternating vertical movement, which is provided with two horizontal arms (46) whose ends (46 ′) folded at right angles and juxtaposed are horizontally retractable to allow, during the stroke of the carriage (45) down, introduce said ends (46 ′) inside the opening of the pantyhose and thread the elastic edge (5 ′) of the beaks (31) of an arm (29) of said second section (B ) and, during the successive stroke of the carriage upwards, thread the legs (5˝) of the tights onto the shapes (4) of the ironing machine (W). 8) Machine according to claim 7, characterized in that one of said points of each clamp (13) is slaved to the rod (16) of a corresponding pneumatic cylinder (17) whose programmed activation determines the opening of the clamp itself, the closure being obtained by means of a return spring (18) after deactivation of said penumatic cylinder (17). 9) Machine according to claim 7, characterized in that said clamps (13) are slaved to a simultaneous rotation of 180 ° towards the outside of the pantyhose around their own vertical axis, to allow the elastic edge (5 ′) to be turned over. tacky tights. 10) Machine according to claim 7, characterized in that on the lower part of the vertical shaft of each of said supports (23) is mounted a toothed wheel (25) engaged with a corresponding toothed wheel (26) provided with a roller (27) guided in an annular groove (28) of the bench (21) whose curvilinear outline is eccentric relative to the axis of the table (22) and in such a way as to allow the rotation of the corresponding support (23) in one direction and respectively in the other, between the third and the fifth station and respectively between the fifth and the first station of said table (22). 11) Machine according to claim 7, characterized in that the closure of the spouts (31) of the arm (29) corresponding to the support (23) which is located in the first station (S1) of the table (22) is obtained by means of a lever (32) controlled by a pneumatic cylinder (33) with programmed activation. 12) Machine according to claim 7, characterized in that the spacing of the ends (46 ′) of said arms (46) is obtained by means of the rotation, in one direction or the other, of a toothed rod (48) vertical which engages the toothing (47) of one of said arms (46), the other arm being slaved to the first by means of a toothed wheel (49) mounted idly, arranged between the arms themselves . 13) Machine according to claim 7, characterized in that the elastic edge (5 ′) of the pantyhose (5), after the legs (5˝) have been threaded onto the forms (4) of the ironing machine (W) , is removed from the ends (46 ′) of said arms (46) by means of at least one tampon extractor (50) brought to apply pressure on the tights against one of the forms (4). 14) Machine according to claim 7, characterized in that the elastic edge (5 ′) of the tights, after the legs (5˝) have been threaded on the forms (4) of the ironing machine (W), is unthreaded ends (46 ′) of said arms (46) by means of two fixed extractors (51) which intercept the portions of said elastic edge which do not cooperate with the ends (46 ′) of said arms (46).

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