EP0802271A1 - Apparatus for sewing the toe portion of tubular knitted products - Google Patents
Apparatus for sewing the toe portion of tubular knitted products Download PDFInfo
- Publication number
- EP0802271A1 EP0802271A1 EP97830132A EP97830132A EP0802271A1 EP 0802271 A1 EP0802271 A1 EP 0802271A1 EP 97830132 A EP97830132 A EP 97830132A EP 97830132 A EP97830132 A EP 97830132A EP 0802271 A1 EP0802271 A1 EP 0802271A1
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- European Patent Office
- Prior art keywords
- blade
- plane
- fabric
- manufactured product
- point
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- 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.)
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- 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
- D05B23/009—Toe closers
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B35/00—Work-feeding or -handling elements not otherwise provided for
Definitions
- the subject of the present invention is a device for sewing the point of knitted tubular manufactured products, in particular at the bottom, according to a predetermined curved seam linen.
- the stockings are made from a tubular element knitted with the ends open and that, subsequently, one end of the element, that is to say the toe, is sewn.
- Toe stitching is carried out with a toe closer machine comprising a plurality of tubes for supporting manufactured products, which are mounted on a carousel rotating intermittently between a first loading station, a second station for placing the sewing point according to the curve obtained, a third station where the actual sewing of the point of the manufactured product is carried out and a successive station for unloading the manufactured product with the point thus opulent.
- document US 4192242 discloses a device comprising a belt closed in rings which, in correspondence with the positioning station of the sewing point, results with an edge in contact with one side of the point of the manufactured product to achieve the drag along a curvilinear path, in cooperation with two horizontal lateral fins of the respective support tube which are moved forward so as to bring the tip of the manufactured product outside and beyond the mouth of the tube, on an underlying movable plane rigid structure vis-à-vis which, when placed in the raised position, compresses the tissue of the tip against the fins of the tube and against the corresponding portion of belt.
- the upper side of the fabric is interposed between the fins and the strap.
- the fins of the tube are removed to allow the movement of the fabric of the point thus treated towards and until a sewing machine which realizes the closing: the point of the manufactured product being supported on a horizontal plane support as the tube advances to and from the sewing machine.
- the main object of the present invention is to eliminate the aforementioned drawbacks. This result was achieved in accordance with the invention by adopting the idea of producing a device having the characteristics described in claim 1. Other characteristics are the subject of the dependent claims.
- the advantages deriving from the present invention essentially consist in that it is possible to intervene on the fabric of the tip of the manufactured product all along its transverse extension, without the possibility of damaging it, and without altering its position before sewing. ; that a device according to the invention is relatively simple to manufacture, economical, reliable even after an extended period of exercise and can be easily mounted even on already existing sewing machines.
- FIG. 1 shows the side view of a device according to the invention
- fig. 2 shows the plan view of the device of FIG. 1
- fig. 3 shows a detail of the device of FIG. 2 in the bent position of the toe of the manufactured product
- fig. 4 shows the front view of the device of FIG. 1
- fig. 5 shows the isolated side view of the device according to the invention
- fig. 6 shows the diagram of the means for controlling the curvature of the blade of the device illustrated in the preceding figures.
- a device in accordance with the invention for shaping one end of a knitted tubular element made with the two open ends, in particular the toe of a stocking invested in a tube (8) of support, according to the curved line corresponding to the seam line of the tip itself comprises at least a vertical elastic blade (1) which can be alternately positioned, on command, in a flat rest position and in a curvilinear working position , with the concavity facing downwards: said blade (1) being slaved to corresponding movement means from and to a separate sewing station, and arranged, in the working position, upstream of a sewing machine (4) and located above a corresponding horizontal plane (3) opposite which is placed the tip (5) of the manufactured product by means of two movable lateral fins of the tube (8) which tension the fabric with a clamp (100) intended to retain the tip (5) of the manufactured product outside the mouth of the tube (8) so as to place it slightly beyond said plane (3), to determine the curvature of
- said means of movement of the elastic blade (1) comprise a motorized belt (9) closed in vertical rings to which the blade (1) is hooked so as to result with the respective free end, that is to say intended in contact with the fabric of the manufactured product, oriented towards the outside, that is to say centrifugally, relative to the belt (9).
- the actuating motor of the aforementioned belt (9) is marked with the number (90) in the figures of the accompanying drawings. With the number (93) is marked a wheel controlled by the aforementioned motor (90), for the actuation of the belt (9).
- Said belt (9) is advantageously of the chain type mounted on a flat support (91) whose contour is capable of constituting a sliding track for the elements (92) of the chain itself.
- means comprising two producing cylinders (2) parallel to a horizontal axis placed on the side opposite the blade (1) relative to to the belt (9) and to which is slaved a body (12) which has a seat for a pivot (13) associated with an underlying lever (14) which is connected, on the side opposite to that of said pivot (13), to a shim (15) for supporting the blade (1).
- the activation of the cylinders (2) determines the rotation of the levers (14) around the respective pivots (13), by effect of the action exerted on these by the bodies (12) slaved to the cylinders (2), so as to cause the corresponding deformation, that is to say the elastic curvature of the blade (1). Because of the inherent elasticity of the blade (1), the activation of the cylinders (2) in the opposite direction to the previous causes the restoration of the initial plane geometric configuration. The same function can still be performed by a single cylinder.
- the operation of the device described above is as follows. After the pliers (100) have taken the tip (5) of the manufactured product from the lateral fins of the support tube (8) of the manufactured product for such purpose extracted, to place it in correspondence with the plane (3), the blade (1) is placed in a curved position, to compress, in such a position - and after the fins have been withdrawn, that is to say returned to the respective initial position - the tissue of the tip (5) of the product manufactured against the plane (3) which is placed in the raised position.
- the clamp (100) releases the fabric and the blade (1) is brought back to the flat position initial, that is to say non-deformed, and provides to maintain the tip (5) of the manufactured product adhering to a horizontal plane (7) of guidance by moving it to the input section of the sewing machine (4) while the tube (8) for supporting the manufactured product is moved at the same time to and from the sewing machine (4).
- the latter is brought back to the respective position of beginning of the cycle by means of the belt (9) - that is to say say in correspondence of the plan (3) - and the tube (8) is routed to a separate unloading station for the manufactured product, for simplicity not shown in the figures of the accompanying drawings.
- the activation of said clamp (100) is controlled by an electrical signal produced by a sensor of the opto-electronic type already known per se, with the reading of a local characteristic of the manufactured product, such as for example the free end. of the point, a mark inserted or applied in a predetermined position of the manufactured product, a variation in density or in the type of mesh of the fabric.
- Deactivation of the clamp (100), in the direction of tissue relaxation is obtainable, for example, by means of an electrical signal associated with the plane (3) when the latter is in the raised position.
- the free end of the blade (1) is advantageously provided with an element linear rubber (10) intended for contact with the fabric.
Abstract
Description
La présente invention a pour objet un dispositif pour réaliser la couture de la pointe de produits manufacturés tubulaires tricotés, notamment bas, selon une linge de couture courbe prédéterminée.The subject of the present invention is a device for sewing the point of knitted tubular manufactured products, in particular at the bottom, according to a predetermined curved seam linen.
Il est connu que les bas sont fabriqués à partir d'un élément tubulaire tricoté avec les extrémités ouvertes et que, par la suite, une extrémité de l'élément, c'est-à-dire la pointe du pied, est cousue. La couture de la pointe du pied est réalisée avec une machine pour coudre les pointes ou "toe closer" comprenant une pluralité de tubes de support des produits manufacturés, lesquels sont montés sur un carrousel tournant à intermittence entre une première station de chargement, une deuxième station de placement de la pointe à coudre selon la courbe volue obtenir, une troisième station où est réalisée la couture proprement dite de la pointe du produit manufacturé et une station successive de déchargement du produit manufacturé avec la pointe ainsi cossue.It is known that the stockings are made from a tubular element knitted with the ends open and that, subsequently, one end of the element, that is to say the toe, is sewn. Toe stitching is carried out with a toe closer machine comprising a plurality of tubes for supporting manufactured products, which are mounted on a carousel rotating intermittently between a first loading station, a second station for placing the sewing point according to the curve obtained, a third station where the actual sewing of the point of the manufactured product is carried out and a successive station for unloading the manufactured product with the point thus opulent.
Pour placer la pointe du produit manufacturé dans une position telle à obtenir la ligne de couture de la pointe conformée selon une courbure prédéterminée, on connaît du document US 4192242 un dispositif comprenant une courroie fermée en anneaux laquelle, en correspondance de la station de positionnement de la pointe à coudre, résulte avec un bord en contact avec un côté de la pointe du produit manufacturé pour en réaliser le traînement selon une trajectoire curviligne, en coopération avec deux ailettes latérales horizontales du tube respectif de support lesquelles sont mouvementées en avant de manière à porter la pointe du produit manufacturé dehors et au-délà de la bouche du tube, sur un plan mobile sous-jacent à structure rigide vis-à-vis lequel, lorqu'il est placé en position soulevé, comprime le tissu de la pointe contre les ailettes du tube et contre la portion de courroie correspondante. Dans cette condition, le côté supérieur du tissu est intérposé entre les ailettes et la courroie. A la fin de cette opération, les ailettes du tube sont retirées pour permettre le mouvement du tissu de la pointe ainsi traitée vers et jusqu'à une machine à coudre qui en réalise la fermeture: la pointe du produit manufacturé étant appuiée sur un plan horizontal de support pendant que le tube avance vers et jusqu'à la machine à coudre.To place the tip of the manufactured product in a position such as to obtain the seam line of the tip shaped according to a predetermined curvature, document US 4192242 discloses a device comprising a belt closed in rings which, in correspondence with the positioning station of the sewing point, results with an edge in contact with one side of the point of the manufactured product to achieve the drag along a curvilinear path, in cooperation with two horizontal lateral fins of the respective support tube which are moved forward so as to bring the tip of the manufactured product outside and beyond the mouth of the tube, on an underlying movable plane rigid structure vis-à-vis which, when placed in the raised position, compresses the tissue of the tip against the fins of the tube and against the corresponding portion of belt. In this condition, the upper side of the fabric is interposed between the fins and the strap. At the end of this operation, the fins of the tube are removed to allow the movement of the fabric of the point thus treated towards and until a sewing machine which realizes the closing: the point of the manufactured product being supported on a horizontal plane support as the tube advances to and from the sewing machine.
Cette technique connue présente l'inconvénient que l'action exercée au même temps par ladite courroie et par ledit plan rigide sur la pointe du pied du produit manufacturé interesse le tissu correspondant seulement pour une partie de son extension transversale. En effet, dans une zone comprise entre les deux ailettes latérales extraites du tube la friction exercée par la courroie, sur le côté supérieur du tissu, et par le plan rigide, sur le côté inférieur de celui-ci, est insuffisant, en resultant dans cette condition un interstice entre la courroie de conformation de la pointe et le précité plan vis-à-vis, lequel est dû à l'épaisseur propre des ailettes latérales du tube. Par conséquent, avec la rétraction des ailettes avant la couture, il peut se vérifier un glissement relatif entre les portions infèrieure et supérieure du tissu de la pointe encore ouverte, de ce fait il peut dériver une alteration du positionnement précédent réalisé et une aggravation des caractéristiques de la couture obtenue successivement.This known technique has the drawback that the action exerted at the same time by said belt and by said rigid plane on the tiptoe of the manufactured product interests the corresponding fabric only for part of its transverse extension. In fact, in an area between the two lateral fins extracted from the tube, the friction exerted by the strap, on the upper side of the fabric, and by the rigid plane, on the lower side of the latter, is insufficient, resulting in this condition a gap between the shaping belt of the point and the aforementioned plane opposite, which is due to the thickness of the lateral fins of the tube. Consequently, with the retraction of the fins before sewing, it is possible to verify a relative sliding between the lower and upper portions of the fabric of the tip still open, therefore it can derive an alteration of the previous positioning carried out and an aggravation of the characteristics. of the seam obtained successively.
Outre à ce-ci il y a le fait que, pour la rigidité propre dudit plan vis-à-vis et celle des ailettes, le tissu dans la portion du produit manufacturé que résulte interposé peut être endommagé, à cause de la pression necessaire et inévitable de fermeture exercé dans la phase de conformation de la pointe.In addition to this there is the fact that, for the inherent rigidity of said plane opposite and that of the fins, the fabric in the portion of the manufactured product that results interposed can be damaged, because of the necessary pressure and inevitable closure exerted in the tip conformation phase.
Le but principal de la présente invention est celui d'éliminer les précités inconvénients.
A ce résultat on est parvenus conformément à l'invention en adoptant l'idée de réaliser un dispositif ayant les caractéristiques décrites dans la revendication 1. Autres caractéristiques font l'objet des revendication dépendantes.The main object of the present invention is to eliminate the aforementioned drawbacks.
This result was achieved in accordance with the invention by adopting the idea of producing a device having the characteristics described in
Les avantages qui dérivent de la présente invention consistent essentiellement en ce qu'il est possible intervenir sur le tissu de la pointe du produit manufacturé tout le long de son extension transversale, sans possibilité de l'endommager, et sans altérer sa position avant la couture; que un dispositif conformément à l'invention est de fabrication relativement simple, économique, fiable même après un temps prolongé d'exercice et peut être monté facilement même sur les machines à coudre déjà existantes.The advantages deriving from the present invention essentially consist in that it is possible to intervene on the fabric of the tip of the manufactured product all along its transverse extension, without the possibility of damaging it, and without altering its position before sewing. ; that a device according to the invention is relatively simple to manufacture, economical, reliable even after an extended period of exercise and can be easily mounted even on already existing sewing machines.
Ces avantages et caractéristiques de l'invention ainsi que d'autres seront plus et mieux compris de chaque homme du métier à la lumière de la description qui va suivre et à l'aide des dessins annexés donnés à titre d'exemplification pratique d'une forme concrète de réalisation, mais à ne pas considérer dans le sens limitatif, sur lesquels: la fig. 1 représente la vue latérale d'un dispositif conformément à l'invention; la fig. 2 représente la vue en plan du dispositif de la fig. 1; la fig. 3 représente un détail du dispositif de la fig. 2 en position de courbure de la pointe du pied du produit manufacturé; la fig. 4 représente la vue de front du dispositif de la fig. 1; la fig. 5 représente la vue latérale isolée du dispositif conformément à l'invention; la fig. 6 représente le schéma des moyens de commande de la courbure de la lame du dispositif illustré dans le figures précédentes.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 will follow and with the aid of the appended drawings given by way of practical example of a concrete embodiment, but not to be considered in the limiting sense, on which: FIG. 1 shows the side view of a device according to the invention; fig. 2 shows the plan view of the device of FIG. 1; fig. 3 shows a detail of the device of FIG. 2 in the bent position of the toe of the manufactured product; fig. 4 shows the front view of the device of FIG. 1; fig. 5 shows the isolated side view of the device according to the invention; fig. 6 shows the diagram of the means for controlling the curvature of the blade of the device illustrated in the preceding figures.
Réduit à sa structure essentielle et en reférence aux figures des dessins annexés, un dispositif conformément à l'invention pour conformer une extrémité d'un élément tubulaire tricoté fabriqué avec les deux extrémités ouvertes, notamment la pointe du pied d'un bas investi sur un tube (8) de support, selon la ligne courbe correspondante à la ligne de couture de la pointe même, comprend au-moin une lame élastique verticale (1) qui peut être alternativement positionnée, à commande, dans une position plane de repos et dans une position curviligne de travail, avec la concavité tournée vers le bas: ladite lame (1) étant asservie à des moyens de mouvement correspondants de et vers une station de couture séparée, et disposée, en position de travail, en amont d'une machine à coudre (4) et située au-dessus d'un plan horizontal correspondant (3) vis-à-vis sur lequel est placée la pointe (5) du produit manufacturé au moyen de deux ailettes latérales mobiles du tube (8) qui tendent le tissu à une pince (100) déstinée à retenir la pointe (5) du produit manufacturé en dehors de la bouche du tube (8) de manière à la placer légèrement au-delà dudit plan (3), pour déterminer la courbure de la pointe (5) du produit manufacturé selon le profil curviligne pris par la lame (1), en coopération avec ledit plan (3) et par effet d'une compression exercée par la lame (1) sur le tissu de la pointe (5) du produit manufacturé ainsi positionnée sur le plan vis-à-vis (3) et après la rétraction des précitées ailettes.
Ledit plan (3) est avantageusement asservi à un ou plusieurs cylindres réalisateurs (6) à axe vertical, de manière à pouvoir être mouvementé entre une position abaissée d'attente ou repos et une position soulevée de travail.Reduced to its essential structure and with reference to the figures of the appended drawings, a device in accordance with the invention for shaping one end of a knitted tubular element made with the two open ends, in particular the toe of a stocking invested in a tube (8) of support, according to the curved line corresponding to the seam line of the tip itself, comprises at least a vertical elastic blade (1) which can be alternately positioned, on command, in a flat rest position and in a curvilinear working position , with the concavity facing downwards: said blade (1) being slaved to corresponding movement means from and to a separate sewing station, and arranged, in the working position, upstream of a sewing machine (4) and located above a corresponding horizontal plane (3) opposite which is placed the tip (5) of the manufactured product by means of two movable lateral fins of the tube (8) which tension the fabric with a clamp (100) intended to retain the tip (5) of the manufactured product outside the mouth of the tube (8) so as to place it slightly beyond said plane (3), to determine the curvature of the tip (5) of the manufactured product according to the curvilinear profile taken p ar the blade (1), in cooperation with said plane (3) and by the effect of a compression exerted by the blade (1) on the fabric of the tip (5) of the manufactured product thus positioned on the plane opposite screws (3) and after the retraction of the aforementioned fins.
Said plane (3) is advantageously controlled by one or more producing cylinders (6) with a vertical axis, so that it can be moved between a lowered position for waiting or rest and a raised working position.
Avantageusement, conformément à l'invention, lesdits moyens de mouvement de la lame élastique (1) comprennent une courroie motorisée (9) fermée en anneaux verticale à laquelle est accrochée la lame (1) de manière à résulter avec l'extrémité libre respective, c'est-à-dire déstinée au contact avec le tissu du produit manufacturé, orientée vers l'extérieur, c'est-à-dire de façon centrifuge, par rapport à la courroie (9).
Le moteur d'actionnement de la précitée courroie (9) est marqué avec le numero (90) sur les figures des dessins annexés. Avec le numero (93) est marquée une roue asservie au moteur précité (90), pour l'actionnement de la courroie (9).
Ladite courroie (9) est avantageusement du type à chaîne montée sur un support plat (91) dont le contour est apte à constituer une piste de glissement des éléments (92) de la chaîne même. Pour commander la courbure de la lame (1) on utilise, conformément à une préférentielle mais non limitative forme de réalisation, des moyens comprenants deux cylindres réalisateurs (2) parallèles à un axe horizontal placés du côté opposé à la lame (1) par rapport à la courroie (9) et auxquels est asservi un corps (12) qui présente un siège pour un pivot (13) associé à un sous-jacent lévier (14) lequel est rélié, du côté opposé à celui dudit pivot (13), à une cale (15) de support de la lame (1). L'activation des cylindres (2), dans le sens de l'extension des tiges respectives (20), détermine la rotation des léviers (14) autour aux pivots respectifs (13), par effet de l'action exercée sur ces-ci par les corps (12) asservis aux cylindres (2), de manière à provoquer la déformation correspondante, c'est-à-dire la courbure, élastique de la lame (1). A cause de l'élasticité propre de la lame (1), l'activation des cylindres (2) dans le sens contraire au précédent entraône le rétablissement de la configuration géométrique plane initiale.
La même fonction peut être quand même effectuée par un seul cylindre.Advantageously, in accordance with the invention, said means of movement of the elastic blade (1) comprise a motorized belt (9) closed in vertical rings to which the blade (1) is hooked so as to result with the respective free end, that is to say intended in contact with the fabric of the manufactured product, oriented towards the outside, that is to say centrifugally, relative to the belt (9).
The actuating motor of the aforementioned belt (9) is marked with the number (90) in the figures of the accompanying drawings. With the number (93) is marked a wheel controlled by the aforementioned motor (90), for the actuation of the belt (9).
Said belt (9) is advantageously of the chain type mounted on a flat support (91) whose contour is capable of constituting a sliding track for the elements (92) of the chain itself. To control the curvature of the blade (1), in accordance with a preferred but nonlimiting embodiment, means are used comprising two producing cylinders (2) parallel to a horizontal axis placed on the side opposite the blade (1) relative to to the belt (9) and to which is slaved a body (12) which has a seat for a pivot (13) associated with an underlying lever (14) which is connected, on the side opposite to that of said pivot (13), to a shim (15) for supporting the blade (1). The activation of the cylinders (2), in the direction of the extension of the respective rods (20), determines the rotation of the levers (14) around the respective pivots (13), by effect of the action exerted on these by the bodies (12) slaved to the cylinders (2), so as to cause the corresponding deformation, that is to say the elastic curvature of the blade (1). Because of the inherent elasticity of the blade (1), the activation of the cylinders (2) in the opposite direction to the previous causes the restoration of the initial plane geometric configuration.
The same function can still be performed by a single cylinder.
Pour régler le rayon de courbure de la lame (1) en position de travail, il est avantageusement prévu un registre à vis (16) agissant de fin course pour la tige de chaque cylindre (2). Il va de soi que d'autres moyens équivalents d'enregistrement ou réglage peuvent être utilisés, même du type opto-électronique.To adjust the radius of curvature of the blade (1) in the working position, there is advantageously provided a screw register (16) acting at the end of travel for the rod of each cylinder (2). It goes without saying that other equivalent means of recording or adjustment can be used, even of the opto-electronic type.
Le fonctionnement du dispositif décrit au-dessus est le suivant. Après que la pince (100) a effectué le prélèvement de la pointe (5) du produit manufacturé des ailettes latérales du tube de support (8) du produit manufacturé à tel but extraites, pour la placer en correspondance du plan (3), la lame (1) est placée en position courbe, pour comprimer, dans une telle position - et après que les ailettes ont été rétirées, c'est-à-dire ramenées dans la position initiale respective - le tissu de la pointe (5) du produit manufacturé contre le plan (3) qui est placé en position soulevée. Après, la pince (100) relâche le tissu et la lame (1) est ramenée dans la position plane initiale, c'est-à-dire non déformée, et pourvoit à mantenir la pointe (5) du produit manufacturé adhérente à un plan horizontal (7) de guidage en la mouvementant jusqu'à la section d'entré de la machine à coudre (4) pendant que le tube (8) de support du produit manufacturé est mouvementé au même temps vers et jusqu'à la machine à coudre (4). A la fin de la couture de la pointe (5) ainsi placée au moyen de la lame (1), cette dernière est ramenée dans la position respective de commencement du cycle au moyen de la courroie (9) - c'est-à-dire en correspondance du plan (3) - et le tube (8) est acheminé à une station separée de déchargement du produit manufacturé, pour simplification ne pas représentée dans les figures des dessins annexés.The operation of the device described above is as follows. After the pliers (100) have taken the tip (5) of the manufactured product from the lateral fins of the support tube (8) of the manufactured product for such purpose extracted, to place it in correspondence with the plane (3), the blade (1) is placed in a curved position, to compress, in such a position - and after the fins have been withdrawn, that is to say returned to the respective initial position - the tissue of the tip (5) of the product manufactured against the plane (3) which is placed in the raised position. Afterwards, the clamp (100) releases the fabric and the blade (1) is brought back to the flat position initial, that is to say non-deformed, and provides to maintain the tip (5) of the manufactured product adhering to a horizontal plane (7) of guidance by moving it to the input section of the sewing machine (4) while the tube (8) for supporting the manufactured product is moved at the same time to and from the sewing machine (4). At the end of the stitching of the point (5) thus placed by means of the blade (1), the latter is brought back to the respective position of beginning of the cycle by means of the belt (9) - that is to say say in correspondence of the plan (3) - and the tube (8) is routed to a separate unloading station for the manufactured product, for simplicity not shown in the figures of the accompanying drawings.
Avantageusement, l'activation de ladite pince (100) est commandée par un signal électrique produit par un capteur du type opto-électronique déjà connu en soi, avec le relèvement d'une caractéristique locale du produit manufacturé, comme par exemple l'extrémité libre de la pointe, une marque inserée ou appliquée dans une position prédéterminée du produit manufacturé, une variation de densité ou du type de maille du tissu. La desactivation de la pince (100), dans le sens du relâchement du tissu, est obtenible, par exemple, au moyen d'un signal électrique associé au plan (3) lorsque celui-ci est en position soulevée.
Pour améliorer l'action de la lame (1) sur le tissu du produit manufacturé, l'extrémité libre de la lame (1) est avantageusement pourvue d'un élément linéaire de gomme (10) destiné au contact avec le tissu.Advantageously, the activation of said clamp (100) is controlled by an electrical signal produced by a sensor of the opto-electronic type already known per se, with the reading of a local characteristic of the manufactured product, such as for example the free end. of the point, a mark inserted or applied in a predetermined position of the manufactured product, a variation in density or in the type of mesh of the fabric. Deactivation of the clamp (100), in the direction of tissue relaxation, is obtainable, for example, by means of an electrical signal associated with the plane (3) when the latter is in the raised position.
To improve the action of the blade (1) on the fabric of the manufactured product, the free end of the blade (1) is advantageously provided with an element linear rubber (10) intended for contact with the fabric.
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT96FI000080A IT1286598B1 (en) | 1996-04-16 | 1996-04-16 | DEVICE FOR SEWING THE TOE OF KNITTED TUBULAR PRODUCTS |
| ITFI960080 | 1996-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0802271A1 true EP0802271A1 (en) | 1997-10-22 |
Family
ID=11351595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97830132A Withdrawn EP0802271A1 (en) | 1996-04-16 | 1997-03-24 | Apparatus for sewing the toe portion of tubular knitted products |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0802271A1 (en) |
| JP (1) | JPH1057648A (en) |
| IT (1) | IT1286598B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652043A (en) * | 2013-11-15 | 2015-05-27 | 大康织机股份有限公司 | Welt sewing device |
| CN113564903A (en) * | 2021-07-26 | 2021-10-29 | 泉州沃伦服饰有限公司 | Sock production cuts and sews up integrative equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1931772A1 (en) * | 1968-06-25 | 1970-01-08 | British Scient Instr Res Assoc | Method and device for positioning stretchable workpieces |
| FR2070514A5 (en) * | 1969-12-08 | 1971-09-10 | Centre Tech Ind Habillement | |
| US4192242A (en) * | 1977-04-02 | 1980-03-11 | Detexomat Machinery Limited | Hosiery toe closers |
| EP0501927A1 (en) * | 1991-02-26 | 1992-09-02 | SOLIS S.r.l. | Procedure for varying the curvature of the toe-end of hoses sewn with a toe-end sewing machine and device for realizing the said procedure |
| EP0533637A1 (en) * | 1991-09-18 | 1993-03-24 | SOLIS S.r.l. | Machine for automatical sewing of toes of two stockings, especially of panty hose |
-
1996
- 1996-04-16 IT IT96FI000080A patent/IT1286598B1/en active IP Right Grant
-
1997
- 1997-03-24 EP EP97830132A patent/EP0802271A1/en not_active Withdrawn
- 1997-04-16 JP JP9132753A patent/JPH1057648A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1931772A1 (en) * | 1968-06-25 | 1970-01-08 | British Scient Instr Res Assoc | Method and device for positioning stretchable workpieces |
| FR2070514A5 (en) * | 1969-12-08 | 1971-09-10 | Centre Tech Ind Habillement | |
| US4192242A (en) * | 1977-04-02 | 1980-03-11 | Detexomat Machinery Limited | Hosiery toe closers |
| EP0501927A1 (en) * | 1991-02-26 | 1992-09-02 | SOLIS S.r.l. | Procedure for varying the curvature of the toe-end of hoses sewn with a toe-end sewing machine and device for realizing the said procedure |
| EP0533637A1 (en) * | 1991-09-18 | 1993-03-24 | SOLIS S.r.l. | Machine for automatical sewing of toes of two stockings, especially of panty hose |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652043A (en) * | 2013-11-15 | 2015-05-27 | 大康织机股份有限公司 | Welt sewing device |
| CN104652043B (en) * | 2013-11-15 | 2017-07-21 | 大康织机股份有限公司 | Welt sewing device |
| CN113564903A (en) * | 2021-07-26 | 2021-10-29 | 泉州沃伦服饰有限公司 | Sock production cuts and sews up integrative equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| ITFI960080A0 (en) | 1996-04-16 |
| ITFI960080A1 (en) | 1997-10-16 |
| JPH1057648A (en) | 1998-03-03 |
| IT1286598B1 (en) | 1998-07-15 |
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| AK | Designated contracting states |
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