EP0204058B1 - Verfahren und Vorrichtung um, zwecks Nähens, die Zehenden eines Strumpfes automatisch auf das offene Ende eines Wenderohres zu positionieren - Google Patents
Verfahren und Vorrichtung um, zwecks Nähens, die Zehenden eines Strumpfes automatisch auf das offene Ende eines Wenderohres zu positionieren Download PDFInfo
- Publication number
- EP0204058B1 EP0204058B1 EP19850830193 EP85830193A EP0204058B1 EP 0204058 B1 EP0204058 B1 EP 0204058B1 EP 19850830193 EP19850830193 EP 19850830193 EP 85830193 A EP85830193 A EP 85830193A EP 0204058 B1 EP0204058 B1 EP 0204058B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubes
- stocking
- grippers
- stockings
- carriage
- 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
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B23/00—Sewing apparatus or machines not otherwise provided for
- D05B23/007—Sewing units for assembling parts of knitted panties or closing the stocking toe part
Definitions
- the invention relates to a method and a device for automatically placing, in any predefined position, the two tubular stockings of a pantyhose on the tubes of a pneumatic turning device of a machine for sewing sticky spikes, in order to allow the correct and precise sewing of these points.
- the tube of the pneumatic turning device is used to support the turned bottom and two lateral fins, sliding longitudinally with respect to said tube, are used to slide towards the sewing machine sewing bottom point.
- an automatic device for placing the end of the seam stocking in a predefined position of the tube of the pneumatic turning device, which comprises a position sensor (eg a fixed photocell), capable of recognizing a detail (eg the open end) of the bottom, as well as devices for grasping the bottom at the level of the lateral fins of the turning device, for sliding it along of the tube, first in front, that is to say towards its open end, in such a way that said bottom detail exceeds the sensor, then in reverse and this until said bottom detail arrives in a position corresponding to that of the sensor, which then controls the opening of the gripping machines.
- a position sensor eg a fixed photocell
- This known device uses gripping machines which close on the bottom always in the same position relative to the tube and which advance the bottom always in a stroke of the same length; and since the open end of the bottom, at the end of the turning of the latter on the tube, results in a position which varies along a very wide margin, said gripping devices always close on the bottom to a certain distance from the end of it. Consequently, during advancement from the bottom towards the free end of the tube, even if it takes place at low speed, numerous folds form in the bottom termination zone, which is outside of the gripping devices; To eliminate these folds, you must then pull the bottom back at low speed.
- the main objective of the present invention is to eliminate the above-mentioned drawbacks.
- the invention as characterized by the claims, solves the problem of sliding the two stockings of a pantyhose over the two finned tubes of a pneumatic turning device, from any initial position of each stocking towards the same predefined end position for both stockings, with a single and rapid approach run.
- a mobile steering carriage parallel to the axis of the tubes of the turning device and carrying two probes detecting the position of the tips of the stockings, at the end of their turning, as well as two pairs of pliers making it possible to slide the sewing tip from the stockings along the lateral fins of the tubes of the turning apparatus, from their position at the end of the turning to that predetermined for sewing the points;
- each of the probes individuallyizes a given point detectable on the corresponding bottom, it then commands the pair of corresponding pliers to close on the bottom, so as to slide it towards and until the end of the carriage stroke to which the predetermined position for sewing corresponds; once it has reached said end position, the carriage stops while each pair of pliers remains closed on the corresponding bottom; then, when a central machine control unit, e.g.
- a rotary cam programmer which regulates the various operational phases of the machine, has made a turn, it controls the opening of the clamps to leave the stockings in the predefined sewing position and allow the tubes to advance one step wearing the stockings, so that you can start a new cycle.
- the advantages obtained thanks to the present invention essentially consist in the fact that it is possible to operate the prior turning of the stockings on the tubes of the turning device at a speed higher than that obtained hitherto; that the stockings literally slide to the predetermined position in a single approach run; in this case each stocking is always grasped at the height of its open end, whatever its starting position; in that the sliding of the two stockings is carried out at a very high speed and with the woven fabric of the stocking held in the stretched position; in that it is possible to modify the release position of the stockings; in that the relaxation of the stockings is done at a standstill and therefore without the risk of error due to inertia.
- the stroke making it possible to place the carriage in its initial position is carried out towards the center of the carousel during the advancement of one step of the carousel, with said clamps open and said probes inactive, while the stroke for exploration and sliding of the down towards the free end of the tubes takes place during the stopping of the carousel and with the clamps which at the start of said stroke are partially closed, but without touching the fabric of the stockings.
- Said index point of the stockings can obviously be the limit between the reinforcement of the point and the rest of the bottom or the end of the bottom or even a particular sign, such as a dark colored thread, previously inserted in the woven of the bottom.
- Each pair of contiguous stirrups 50 is associated with two horizontal jaws 52 and 52 ′, articulated on the upper and lower arm respectively, of the corresponding stirrups 50 and connected together by means of a system of levers 53 to form two corresponding clamps (52, 52 ') which close longitudinally and on either side on the lateral fins 11 of each tube 10, partially, under the effect of two return springs 54, and, on the contrary, open under the 'action of a pneumatic cylinder 55'.
- Clamps 52, 52 ' are closed in two stages, since the console 53' of the lever 53 is intercepted not only by the rod of the pneumatic control cylinder 55 '(which is actuated by the central control unit) , but also by that of a second pneumatic control cylinder 55 (which is actuated by one of the probes) and which is of shorter length than that of the cylinder 55 ', so that when the rod of the cylinder 55' is lowered and as long as the cylinder rod 55 remains raised, the clamps 52, 52 ′ are only partially closed.
- each of the probes being located in withdrawal with respect to the two ends of the jaws 52 of the corresponding tube 10: the position of each probes 56 in direction parallel to the axis of the tube 10 corres laying can be adjusted at will in relation to the index point 30 given from the bottom 3 and with the desired sewing position of the bottom.
- Each of said probes 56 is connected to a corresponding cylinder 55, so as to effect, separately, the closing of the corresponding clamps (52, 52 ') on the fins 11 of the two tubes 10 when, after each bottom 3 has been explored separately under the effect of the movement of the carriage 5, the index point 30 given of each stocking has been detected.
- the reciprocating rectilinear movement of the carriage 5 is derived from a reduction gear with a general motor of the machine, with the interposition of a complex of oscillating sliding cranks (6, 7) and of a connecting rod 8 so that, at each operating cycle of the stitch sewing machine, the carriage 5 performs a faster run to empty and a slower return run, operative; the end of the return stroke, that is to say the operative stroke, of the carriage 5 being determined by a stop flap 57 whose position is adjustable in the direction of travel of the carriage 5.
- Said connecting rod 8 is composed of a tubular rod whose head 82 is articulated on the slide 6 and whose foot 81, which is articulated to the carriage 5 by means of a pivot 5 ', is sliding in the rod 8 and connected to it by means of a grip 83, held in place in a corresponding buttonhole, the length of which determines the maximum excursion of the foot 81.
- each of said cylinders 55 is controlled by a single switch, which is in turn actuated by a central control unit, for example. a rotary cam programmer (for the sake of simplicity, the latter is not shown in the attached drawings), making it possible to open the two pairs of pliers (52, 52 ') together and thus leave the two stockings 3 on the two tubes 10, in the predetermined sewing position, just before the start of the next cycle.
- a central control unit for example. a rotary cam programmer (for the sake of simplicity, the latter is not shown in the attached drawings), making it possible to open the two pairs of pliers (52, 52 ') together and thus leave the two stockings 3 on the two tubes 10, in the predetermined sewing position, just before the start of the next cycle.
- two probes 56 for each tube 10 of the pneumatic turning device arranged above the tube, near the lateral fins, one associated with a clamp (52 , 52 ') and the other associated with the other clamp, as well as two corresponding cylinders 55 making it possible to actuate the clamps (52, 52') separately, so as to allow the bottom to be grasped on the two fins 11 of the tube 10 at different times and so that the open end of the bottom, which, at the end of the turning over on the tube 10 would be oriented obliquely to the axis of the tube itself, results in the end of the sliding , placed in the predetermined sewing position, that is to say perpendicular to the axis of the tube 10.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
- Socks And Pantyhose (AREA)
Claims (11)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP85830124A EP0203243B1 (de) | 1985-05-24 | 1985-05-24 | Verfahren und Vorrichtung um, zwecks Nähens, die Zehenden eines Strumpfes automatisch auf das offene Ende eines Wenderohres zu positionieren |
US06/786,943 US4620650A (en) | 1985-05-24 | 1985-10-11 | Method and apparatus for automatically positioning tubular pantyhose legs |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP85830124 | 1985-05-24 | ||
EP85830124A EP0203243B1 (de) | 1985-05-24 | 1985-05-24 | Verfahren und Vorrichtung um, zwecks Nähens, die Zehenden eines Strumpfes automatisch auf das offene Ende eines Wenderohres zu positionieren |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0204058A1 EP0204058A1 (de) | 1986-12-10 |
EP0204058B1 true EP0204058B1 (de) | 1988-10-26 |
Family
ID=8194683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19850830193 Expired EP0204058B1 (de) | 1985-05-24 | 1985-07-25 | Verfahren und Vorrichtung um, zwecks Nähens, die Zehenden eines Strumpfes automatisch auf das offene Ende eines Wenderohres zu positionieren |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0204058B1 (de) |
DE (2) | DE3567490D1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1246679B (it) * | 1991-02-26 | 1994-11-24 | Solis Srl | Metodo per variare la curvatura della punta cucita delle calze con una macchina cucipunte e dispositivo per attuare il detto metodo. |
IT1262485B (it) * | 1993-07-29 | 1996-06-28 | Solis Srl | Metodo e dispositivo per il posizionamento automatico delle calze im macchina per formare collant |
WO2007083330A1 (en) * | 2006-01-19 | 2007-07-26 | Santoni S.P.A. | Automatic device to insert stockings in knitted-seaming machines |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1583500A (de) * | 1967-10-02 | 1969-10-31 | ||
GB1577758A (en) * | 1977-04-02 | 1980-10-29 | Detexomat Machinery Ltd | Garment manufacture |
IT1090252B (it) * | 1979-02-07 | 1985-06-26 | Solis Srl | Dispositivo per il posizionamento automatico della estremita'da cucire delle calze tubolari con tallone su di un apparato rovesciatore pneumatico specialmente in macchina per la cucitura della punta delle calze tubolari |
JPS59218188A (ja) * | 1983-05-26 | 1984-12-08 | 株式会社タカトリ機械製作所 | ホ−ス端部の自動位置決め方法および装置 |
-
1985
- 1985-05-24 DE DE8585830124T patent/DE3567490D1/de not_active Expired
- 1985-07-25 DE DE8585830193T patent/DE3565867D1/de not_active Expired
- 1985-07-25 EP EP19850830193 patent/EP0204058B1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0204058A1 (de) | 1986-12-10 |
DE3565867D1 (en) | 1988-12-01 |
DE3567490D1 (en) | 1989-02-16 |
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