EP0203243B1 - 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
- EP0203243B1 EP0203243B1 EP85830124A EP85830124A EP0203243B1 EP 0203243 B1 EP0203243 B1 EP 0203243B1 EP 85830124 A EP85830124 A EP 85830124A EP 85830124 A EP85830124 A EP 85830124A EP 0203243 B1 EP0203243 B1 EP 0203243B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubes
- leg
- grippers
- tube
- legs
- 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
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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 stocking to be sewn in a predefined position of the tube of the pneumatic turning device, which comprises a position sensor (for example a photocell) fixed, able to recognize a detail (eg the open end) of the bottom, and devices to grip the bottom in correspondence with the side fins of the turner, to move it along the tube, first by forward, that is to say in the direction of its open end and in such a way that said bottom detail exceeds the sensor, then backward and until said bottom detail arrives in a position corresponding to that of sensor, which then controls the opening of the gripping gear.
- a position sensor for example a photocell
- This known device uses gripping devices 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 the advancement from the bottom towards the free end of the tube, even if it takes place at low speed, numerous folds are formed in the termination area of the bottom, which is outside 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 two bottoms and two pairs of pliers to drive the point sewing stockings along the lateral fins of the tubes of the turning device; while, during the course of the carriage towards the free end of the tubes, each probe individualizes a predetermined point detectable from the corresponding bottom, it commands the corresponding pair of pliers to close on the bottom so as to allow it to be drawn towards and until the end of the carriage stroke to which corresponds the automatic opening of all the clamps and leaving the final and predefined position of the stockings on the tubes of the turning device.
- 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 higher speed than that obtained up to now; that the stockings literally slide to the predefined position in a single approach run; that each stocking is always grasped at the height of its open end, whatever the starting position of each stocking; that the sliding of the two stockings is carried out at a very high speed and with the fabric in the stretched position; that it is possible to modify the release position of the bottom.
- Figure 1 shows, schematically, the plan view of a machine for sewing ladies' tights with a device for placing the stockings on the two tubes of a pneumatic turning apparatus, produced in accordance with the present invention
- Figure 2 shows, in perspective, the detail of the two finned tubes of a turning device of the machine of Figure 1 with the two bottoms placed in the position corresponding to the end of their turning
- Figure 3 shows the plan view of a device according to the invention relating to the two tubes of the turning device of Figure 2, in the end of empty travel position
- Figure 4 shows the front view of the device of Figure 3
- Figure 5 shows the left side view of the device of Figure 3
- Figure 6 shows the section along A-A of Figure 3
- Figure 7 shows the plan view of the device of Figure 3 in the start of sliding position from the bottom
- Figure 8 shows the front view of the device of Figure 7
- Figure 9 shows the left side view of the device of Figure 7
- Figure 10 shows the plan view of the device of Figure 3 in the end of sliding position of the two bottoms
- the method for automatically placing the tubular stockings of a pantyhose on the tubes of a pneumatic turning device of a machine for sewing the pantyhose points comprising the mechanical return of the stockings from the interior of the tubes and forced sliding of the stockings on the side fins tubes, allows, successively: (a) to explore the stockings along one of their generators and to detect, by means of two photo-electronic probes, the initial position of a predetermined index point, of each stocking held stationary on the corresponding tube; (b) close on each bottom, in correspondence with the fins of the corresponding tube and on command of the corresponding photoelectronic probe, when the latter has detected the predetermined index point at the bottom, two corresponding pliers to slide the end to be sewn from each stocking to the predefined end position of the corresponding tube; (c) to move the two pairs of pliers thus closed with the end of the stockings to be sewn along the fins of the tubes towards the free end
- 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 fabric of the bottom.
- Each pair of contiguous stirrups 50 is associated with two horizontal jaws 52 and 52 ′, articulated on the upper and lower arms respectively, 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, under the effect of two return springs 54 and, on the contrary, open by the action of a pneumatic cylinder 55.
- 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 was explored separately under the effect of the movement of the carriage 5, the predetermined index point 30 of each stocking 3 was detected.
- each of said cylinders 55 is slaved to a single switch 57 of the end of travel of the carriage 5 so as to defuse all the clamps (52, 52 ') and thus cause the immobilization of the two bottoms 3 in the predefined position on the two tubes 10.
- 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 and two corresponding cylinders 55 enabling the clamps (52, 52') to be actuated separately, so as to allow the bottom to be grasped on the two fins 11 of the tube 10 at different times and in such a way that the open end of the bottom, which at the end of the turning would be oriented obliquely to the axis of the tube itself, is arranged, at the end of the sliding, so perpendicular to the axis of the tube 10.
- the carriage 5 immediately performs its return stroke, during which each of the two probes 56 begins by longitudinally exploring the corresponding bottom 3 and as soon as it has detected the predefined index point 30, it orders the defusing of the corresponding cylinder 55, thereby causing the closure of the corresponding clamps (52, 52 '); then, the end 31 of each bottom 3 is driven until the end of the return stroke of the carriage 5; once this has been achieved, by means of the switch 57, said carriage 5 controls the actuation of the two cylinders 55, thereby causing instantaneous opening of all the clamps (52, 52 ') and hence immobilization tips of the two bottoms 3, in the predefined position on the tubes 10.
- the carousel 1 then advances by one step and carries the tubes 10 to the station D1: there the lateral fins 11 of one of the tubes 10, advancing the along the tube beyond its end, transport the end of the bottom corresponding to sewing in the area where the sewing cutter 4 is located which is at station D1; similarly, at the next station D2, the fins 11 of the other tube 10 will transport the end of the other stocking 3 to be sewn in front of the sewing machine 4 which is at said station D2 of the machine sew the tips.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Claims (9)
Priority Applications (5)
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 |
DE8585830124T DE3567490D1 (en) | 1985-05-24 | 1985-05-24 | Process and apparatus for automatically positioning the toe end of a stocking at the open end of an everting tube for sewing purposes |
DE8585830193T DE3565867D1 (en) | 1985-05-24 | 1985-07-25 | Process and apparatus for automatically positioning the toe end of a stocking at the open end of an everting tube for sewing purposes |
EP19850830193 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 |
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 |
---|---|---|---|
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 |
EP19850830193 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 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0203243A1 EP0203243A1 (de) | 1986-12-03 |
EP0203243B1 true EP0203243B1 (de) | 1989-01-11 |
Family
ID=26100817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85830124A Expired 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 |
Country Status (2)
Country | Link |
---|---|
US (1) | US4620650A (de) |
EP (1) | EP0203243B1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9000463D0 (en) * | 1990-01-09 | 1990-03-07 | Flude & Hinckley | Stocking positioning device |
US5573851A (en) * | 1994-05-16 | 1996-11-12 | U.S. Textile Corporation | Ultraviolet-detectable marking yarn and a textile fabric product therewith |
FR2793815B1 (fr) * | 1999-05-20 | 2002-01-04 | Innothera Topic Int | Machine de couture de la pointe d'articles tubulaires tricotes tels que bas et analogues, notamment d'articles de contention |
WO2016038509A1 (en) * | 2014-09-11 | 2016-03-17 | Santoni S.P.A. | Method and apparatus for sewing an open end of a tubular textile item to make the toe of a sock or of a leg of a stocking |
EP3123881B1 (de) | 2015-07-28 | 2018-11-21 | Boggiani Renato S.r.l. | Vorrichtung und verfahren zur herstellung einer strumpfhose ohne absteppung am körperteil |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2166053A (en) * | 1935-11-15 | 1939-07-11 | Heliot Leon Pierre | Device for the drawing upon forms, of articles to be finished, such as stockings and other hosiery goods |
FR1583500A (de) * | 1967-10-02 | 1969-10-31 | ||
JPS5416264B2 (de) * | 1973-12-28 | 1979-06-21 | ||
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 |
US4421259A (en) * | 1981-04-03 | 1983-12-20 | Intech Corporation | Method and apparatus for handling hosiery |
US4487546A (en) * | 1981-08-05 | 1984-12-11 | Savio & C. S.P.A. | Device for transferring tubular fabrics from support hangers to a rigid body and inverting the fabric |
GB8303159D0 (en) * | 1983-02-04 | 1983-03-09 | Detexomat Machinery Ltd | Transferring hosiery between manufacturing machines |
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 EP EP85830124A patent/EP0203243B1/de not_active Expired
- 1985-10-11 US US06/786,943 patent/US4620650A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0203243A1 (de) | 1986-12-03 |
US4620650A (en) | 1986-11-04 |
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