EP0818570B1 - Apparatus for collecting and moving tubular products - Google Patents
Apparatus for collecting and moving tubular products Download PDFInfo
- Publication number
- EP0818570B1 EP0818570B1 EP97830340A EP97830340A EP0818570B1 EP 0818570 B1 EP0818570 B1 EP 0818570B1 EP 97830340 A EP97830340 A EP 97830340A EP 97830340 A EP97830340 A EP 97830340A EP 0818570 B1 EP0818570 B1 EP 0818570B1
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- EP
- European Patent Office
- Prior art keywords
- article
- station
- actuator
- carriage
- tube
- 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.)
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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
Definitions
- the present invention relates to a apparatus for the removal and movement of tubular manufactured products, especially knitted socks.
- WO 95/27097, EP 737769 and EP 508014 describe equipment for the treatment of flexible manufactured products.
- the document WO 95/27097 describes an apparatus which collected manufactured products using a pliers and documents EP 737769 and EP 508014 show the levy of manufactured products by suction. All of these documents relate to relatively complex equipment, with a large number of components.
- the main object of the present invention is that of proposing a equipment that solves the problem technique mentioned in a simple, economical and reliable.
- the advantages which derive from the present invention basically consist of what is possible operate, even fully automatically and with maximum operational precision, the removal of manufactured goods from a pile or a container where these are accumulated pell-mell and orient them one by one so that each presents the respective ends turned according to a predetermined direction and thus allow automatic feeding of a machine for sew the tights placed downstream of switchgear, at operational speed greater than that permitted by the processes conventional manual feed and at a cost very reduced; that an apparatus in accordance with the invention is relatively simple to manufacture, economical and reliable even after a long time use.
- one or more several of the abovementioned sampling phases, movement and / or relaxation of manufactured products are carried out by means of pneumatic suction corresponding to the direction of movement and / or even relaxation.
- each of said stations (A, B, U) can be fixed or otherwise mobile.
- the increase in the thickness of the end of the manufactured product retained in the second station (B) mentioned above is operated by means of the passage of the manufactured product through a aperture or filter of a minor magnitude of the maximum thickness of the manufactured product itself, according to the oriented direction of the second station (B) at the exit station (U), as well as intercept the thicker end, if it has retained in the second station (B).
- a nozzle (21) for blowing compressed air in correspondence with the area for taking manufactured products from the pile (M) and thus releasing those which have been collected by other members who may be members of the same.
- Said tube (2) is advantageously of the type with a telescopic structure, the movement of which is controlled by at least one director (22).
- an optical sensor (460) is advantageously associated which is intended to detect the possible presence of a portion of the manufactured product (1) retained in the second station (B).
- said tube (2) is provided, in correspondence with its mouth (20), with a valve (23) capable of reducing the command opening, in such a way that during the product collection phase manufactured, the opening is minimal for interest a minumun of manufactured products and, successively to this operation, the opening either maximum to allow rapid passage of the product manufactured or products manufactured across the tube (2), by effect of the suction corresponding.
- conduits (3) and (30) are intended for the recovery of excess manufactured products (1), that is to say distant from the apparatus and intended to be returned to the container (M).
- the function of the device described, with reference to the case of manufactured products with ends of different thickness, is as follows.
- the tube (2) In the cycle start position, the tube (2) is moved by the directors (22) so as to carry the mouth (20) in correspondence of the zone of accumulation of manufactured products (1) awaiting treatment (fig. 1A) and the respective suction means are activated to operate the removal of at least one manufactured product (1), with the valve (23) disposed in the position of minimal opening of the mouth (20), and by means compressed air at the outlet of the nozzle (21) is carried out the detachment of the manufactured products from the mass (M) adhering to these thus removed by the tube (2).
- the manufactured products of the cluster (M) can spontaneously adhere to each other, due to the specific nature of the material of which they are made up.
- the manufactured products are knitted fabric obtained by son of synthetic nature which tend, in fact, to produce such effect of spontaneous adhesion.
- the valve (23) is placed in the position of maximum opening of the mouth (20) but before, the plate (31) of the station (A) is placed in the position of closing the corresponding portion of the tube (30). (Fig. 2A) so as to determine, in said station (A), the stopping of the manufactured product or of the manufactured products (1) sampled by means of the tube (2).
- the producer (34) is activated to block the manufactured products by means of the body (33) (fig. 2B) passing through the guide (35) of the tube (30).
- the suction is inverted, so as to cause the distention of the manufactured products thus blocked along the common longitudinal axis of the complex of conduits (3, 4, 30) and the carriage (4) is moved in the direction indicated by the arrow F in fig. 3A to allow the search for the end portion of the manufactured product (1) which results further from the above station (A). More precisely, the carriage (4) is moved up to the raising, by any of the sensors (41), of the end or portion of the manufactured product (1) which results more distant from the blocking point of the station (A ).
- the finger (42) associated with the sensor (41) which has raised said end or portion of the manufactured product is actuated so as to compress it on the lower surface of the pad (44), suitably moved towards the manufactured product, which is thus interposed, and thus block it (fig. 3B).
- the finger (42) associated with the sensor (41) which has raised said end or portion of the manufactured product, is actuated so as to compress it on the lower surface of the pad (44), suitably moved towards the manufactured product, which is thus interposed, and thus block it (fig. 3B).
- the movement of the blade (46) is controlled by means of the director (47) and of the plate (48) by means of the director (49).
- the release of the manufactured product (1) is controlled from the grip of the finger (42) and of the buffer (44).
- an internal throttle is produced in the carriage (4) so as to allow only the passage of the finer portion of the manufactured product (1), as well as if the part of the manufactured product which was previously blocked by means of the finger (42) and the buffer (44) is that corresponding to the thinner portion, by effect of the persistent suction towards the discharge station (U) the manufactured product results with the thicker portion already oriented towards this station (U) of the apparatus (FIG.
- the finer portion of the manufactured product results from the outlet station side (U) and the procedure is as follows. After activating the suction in the duct (6) placed between the outlet section (U) and the station (A) (fig. 6A), so as to introduce the finest portion of the manufactured product (1), then said suction is interrupted and the portion of the manufactured product introduced into the duct (6) is blocked to prevent movement thereof; afterwards we suck in the direction of the exit station (U) and we release the manufactured product from the grip of the elements (46) and (48) of the carriage (4).
- the thicker portion of the manufactured product (1) will be turned towards the exit station (U), as desired. Finally, the portion of the manufactured product which has been introduced into the tube (6) is released to allow it to exit through the station (U).
- the manufactured product is a stocking, of the type specially suitable for the manufacture of tights, for the thinner portion of the manufactured product we will hear the bottom part corresponding to the toe and for the thicker portion we will hear the one in tights body match.
- a programmable control unit is used, in itself already known by the technicians of industrial automation and, therefore, not described in detail.
- said tube (6) is of telescopic structure, the movement of which is controlled by a corresponding producer (60) supported by a fixed part (410) of the apparatus.
- the working position of the blade (46) that is to say the distance from its end (461) relative to the corresponding internal wall of the carriage (4), is adjustable by associated screw means (470) to the director rod (47) with limit switch function.
- (AS) is indicated a vacuum cleaner, with (D) a distributor, with (50) and (51) two conduits downstream of the valves (V2) and (V3) respectively, for recovery manufactured products (1) expelled by the apparatus and for their return to the container (M).
- the recovery bells (52,53) are in already known to those skilled in the art.
- the tube (2) can be combined with a optical sensor - not shown for simplification in the figures of the accompanying drawings - near the mouth (20) to raise the presence of manufactured products (1) in the container or heap (M) and in correspondence stop and reverse the directors' course (22) after sample.
- rollers (R ', R'',R'') are provided arranged in an intermediate position between the stations (A) and (B) and each time activated in torque (R ' , R ''; R ', R'').
- rollers (R ', R ") aligned vertically are intended to move the manufactured product, a reduced portion of which is retained in station (A), towards station (B), until all of the fabric of the manufactured product between the station (A) and the photocells (41) In this condition, the element (42) associated with the photocell (41) discovered last.
- a photocell (F) is advantageously provided which, once discovered by the fabric moving towards the station (A), controls the slowing down of the rollers (R ', R ") for dragging the manufactured product , to allow more control on the part of the photocells (41) of the station (B).
- the rollers (R ', R''') horizontally aligned are activated only if it is necessary to send the elastic inside of the conduit (6) for a line of predetermined length for then reversing the aspiration and obtaining the output of the manufactured product through the outlet station (U) with the point facing forward.
- the movement of the rollers (R ', R '') can be controlled by a photocell (FW) placed in correspondence of an arrival position on the duct (6) or also by a timer, not shown in the figure.
- the roller (R ') is mounted so as to be able to move away from the roll (R '') in the event of possible unloading of a manufactured product through the conduit (6).
- a valve (SV) can be provided to section the guide duct of the manufactured products being treated and to obtain a waiting zone (AT) intended for the parking of the manufactured products to be treated thereafter.
- a device called an “anti-twist” per se already known can be provided.
- the container (1) which contains the manufactured products to be treated is advantageously mounted rotating around its own central vertical axis.
Description
La présente invention concerne un appareillage pour le prélèvement et le mouvement de produits manufacturés tubulaires, spécialement chausettes tricotées.The present invention relates to a apparatus for the removal and movement of tubular manufactured products, especially knitted socks.
Il est connu que dans l'industrie textile, particulièrement celle pour la fabrication des collants, le problème du prélèvement des produits manufacturés tubulaires d'une station où les mêmes sont cumulés pêle-mêle et de leur mouvement vers une station de charge des formes d'une machine pour coudre les collants de façon que chacun de produits manufacturés resulte avec une des extrémités respectives orientée selon une direction prédéterminée, est senti dépuis longtemps.It is known that in the textile industry, particularly that for the manufacture of tights, the problem of taking products manufactured tubular from a station where the same are cumulated pell-mell and their movement towards a charging station forms a machine for sew the tights so that each product manufactured results with one end respective oriented in one direction predetermined, has been felt for a long time.
Le documents WO 95/27097, EP 737769 et EP 508014 décrivent des équipements pour le traitment de produits manufacturés flexibles. En particulier, le document WO 95/27097 décrit un appareillage qui prélevé les produits manufacturés au moyen d'une pince et les documents EP 737769 et EP 508014 montrent le prélèvement des produits manufacturés par aspiration. Tous ces documents concernent des équipments relativement complexes, avec un grand nombre de composantes.WO 95/27097, EP 737769 and EP 508014 describe equipment for the treatment of flexible manufactured products. In particular, the document WO 95/27097 describes an apparatus which collected manufactured products using a pliers and documents EP 737769 and EP 508014 show the levy of manufactured products by suction. All of these documents relate to relatively complex equipment, with a large number of components.
Le but principale de la présente invention est celui de proposer un appareillage qui permet de résoudre le problème technique mentioné de façon simple, économique et fiable. The main object of the present invention is that of proposing a equipment that solves the problem technique mentioned in a simple, economical and reliable.
A ce résultat on est parvenus conformément à
l'invention en adoptant l'idée de réaliser un appareillage
ayant les
caractéristiques décrites dans la revendication 1.
D'autres caractéristique font
l'objet des revendications dépendantes.This was achieved in accordance with
the invention by adopting the idea of making an apparatus
having the
Features described in
Les avantages qui dérivent de la présente invention consistent essentiellement en ce qu'il est possible opérer, même de manière complètement automatique et avec le maximum de précision opérationnelle, le prélèvement des produits manufacturés d'un amas ou d'un récipient où ces-ci sont cumulés pêle-mêle et les orienter un par un de façon à que chacun présente les extrémités respectives tournées selon une direction prédéterminée et de permettre ainsi l'alimentation automatique d'une machine pour coudre les collants placée en aval de l'appareillage, à une vitesse opérationnelle majeure de celle permise par les procédés conventionnels d'alimentation manuelle et à un coût très réduit; qu'un appareillage conformément à l'invention est de fabrication relativement simple, économique et fiable même après un temps prolongé d'utilisation.The advantages which derive from the present invention basically consist of what is possible operate, even fully automatically and with maximum operational precision, the removal of manufactured goods from a pile or a container where these are accumulated pell-mell and orient them one by one so that each presents the respective ends turned according to a predetermined direction and thus allow automatic feeding of a machine for sew the tights placed downstream of switchgear, at operational speed greater than that permitted by the processes conventional manual feed and at a cost very reduced; that an apparatus in accordance with the invention is relatively simple to manufacture, economical and reliable even after a long time use.
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. 1A réprésente une vue en coupe longitudinale d'un dispositif conformément à l'invention, en position de début de cycle de travail;
- les Fig. 1B et 1C réprésentent un détail du dispositif de la Fig. 1A;
- la Fig. 2A réprésente le dispositif de la Fig. 1A après l'aspiration d'au moins un produit manufacturé de l'amas (M);
- la Fig. 2B réprésente un détail du dispositif de la Fig. 2A;
- la Fig. 3A réprésente le dispositif de la Fig. 1A dans une phase de travail successive à celle de la Fig. 2A;
- la Fig. 3B réprésente un détail du dispositif de la Fig. 3A;
- la Fig. 3C réprésente une vue en plan des capteurs optiques et du tampon associés au chariot de la Fig. 3A;
- la Fig. 4A réprésente un dispositif de la Fig. 1A dans une phase opérationnelle successive à celle de la Fig. 3A;
- le Fig. 4B et 4C réprésentent deux détails du dispositif de la Fig. 4A;
- la Fig. 5A réprésente le dispositif de la Fig. 1A dans une possible phase opérationnelle successive à celle de la Fig. 4A;
- la Fig. 5B réprésente un détail du dispositif de la Fig. 5A;
- la Fig. 6A réprésente le dispositif de la Fig. 1A dans une phase opérationnelle alternative par rapport à celle de la Fig. 5A;
- la Fig. 6B réprésente un détail du dispositif de la Fig. 6A;
- la Fig. 7 réprésente le dispositif de la Fig. 6A dans une phase successive de travail;
- la Fig. 8 réprésente un schéma simplifié d'une installation pneumatique que l'on peut associer au dispositif des figures précédentes;
- la Fig. 9 réprésente un schéma fonctionnel simplifié des moyens de commande de l'appareillage illustré dans les figures précédentes, où avec (P) est indiquée une unité de commande programmable et en soi déjà connue;
- la Fig. 10 réprésente schématiquement un dispositif conformément à l'invention, selon une autre forme de réalisation.
- Fig. 1A shows a view in longitudinal section of a device according to the invention, in the start of work cycle position;
- Figs. 1B and 1C show a detail of the device of FIG. 1A;
- Fig. 2A shows the device of FIG. 1A after aspiration of at least one manufactured product from the pile (M);
- Fig. 2B shows a detail of the device of FIG. 2A;
- Fig. 3A shows the device of FIG. 1A in a work phase successive to that of FIG. 2A;
- Fig. 3B shows a detail of the device of FIG. 3A;
- Fig. 3C shows a plan view of the optical sensors and of the buffer associated with the carriage of FIG. 3A;
- Fig. 4A shows a device of FIG. 1A in an operational phase successive to that of FIG. 3A;
- Fig. 4B and 4C show two details of the device of FIG. 4A;
- Fig. 5A shows the device of FIG. 1A in a possible operational phase successive to that of FIG. 4A;
- Fig. 5B shows a detail of the device of FIG. 5A;
- Fig. 6A shows the device of FIG. 1A in an alternative operational phase compared to that of FIG. 5A;
- Fig. 6B shows a detail of the device of FIG. 6A;
- Fig. 7 shows the device of FIG. 6A in a successive phase of work;
- Fig. 8 shows a simplified diagram of a pneumatic installation which can be associated with the device of the preceding figures;
- Fig. 9 represents a simplified functional diagram of the control means of the apparatus illustrated in the preceding figures, where with (P) is indicated a programmable control unit and in itself already known;
- Fig. 10 schematically represents a device according to the invention, according to another embodiment.
Réduit à sa structure essentielle et en référence aux figures des dessins annexés, un procédé pour le prélèvement automatique d'un produit manufacturé tubulaire en matériel flexible et élastique, comme un bas tricoté, d'un amas ou d'un récipient (M) où plusieurs produits manufacturés sont cumulés pêle-mêle, le produit manufacturé en présentant deux portions d'extrémité ayant égale ou différente épaisseur, et pour en orienter les extrémités selon une direction prédéterminée, conformément à l'invention comprend les phases opérationnelles suivantes:
- prélever au moins un produit manufacturé (1) du tas ou du récipient (M);
- mouvementer le produit manufacturé (1) ou les produits manufacturés ainsi prélevés vers et jusqu'à une première station d'arrêt (A) en aval de la station de prélèvement;
- dans ladite première station d'arrêt (A) retenir la portion plus en avant d'au moins un produit manufacturé (1);
- mouvementer chaque produit manufacturé (1) en direction opposé à celle de provenance dans la station d'arrêt (A), de façon à obtenir la détente correspondante de ces ici retenus et l'éloignement de ces qui sont libres, c'est-à-dire non retenus;
- relever la portion du produit manufacturé (1) qui résulte plus éloignée de ladite première station d'arrêt (A) et en opérer le blochage dans une deuxième station (B) dans une position intermédiaire entre la station de prélèvement des produits manufacturés et la première station (A) d'arrêt;
- libérer l'extrémité de chaque produit manufacturé qui a été retenue dans la première station d'arrêt (A);
- mouvementer chaque produit manufacturé en direction opposée à celle de la détente précédente, de manière à éloigner et décharger les produits manufacturés dont l'extrémité est libre, c'est-à-dire non retenue, dans ladite deuxième station (B) et de telle façon assurer que les phases successives intéressent un seul produit manufacturé (1);
- dans le cas où les extrémités des produits manufacturés (1) pendant le traitement ayent une épaisseur différente, rétenir ledit seul produit manufacturé (1) en correspondance d'une de ses portions à une distance prédéterminée de son extrémité qui a été bloquée dans ladite deuxième station (B);
- libérer aussi l'extrémité du produit manufacturé retenue dans ladite deuxième station (B);
- dans le cas où les extrémités des produits manufacturés en traitement ayent une épaisseur différente, relever l'épaisseur de l'extrémité du produit manufacturé (1) retenue dans ladite deuxième station (B); et
- mouvementer le produit manufacturé (1) ainsi traité vers et jusqu'à une troisième station de déchargement (U), après avoir inversé son orientation si son extrémité plus épaisse resulte relevé dans ladite deuxième station (B).
- take at least one manufactured product (1) from the pile or container (M);
- moving the manufactured product (1) or the manufactured products thus sampled to and to a first stop station (A) downstream of the sampling station;
- in said first stop station (A) retaining the forward portion of at least one manufactured product (1);
- move each manufactured product (1) in the opposite direction to that of origin in the stop station (A), so as to obtain the corresponding relaxation of these here retained and the distance of those which are free, that is to say - say not retained;
- take up the portion of the manufactured product (1) which results further from said first stopping station (A) and operate its blocking in a second station (B) in an intermediate position between the sampling station for manufactured products and the first stop station (A);
- release the end of each manufactured product which has been retained in the first stop station (A);
- move each manufactured product in the opposite direction to that of the previous trigger, so as to move away and unload the manufactured products whose end is free, that is to say not retained, in said second station (B) and such how to ensure that the successive phases concern a single manufactured product (1);
- in the case where the ends of the manufactured products (1) during the treatment have a different thickness, retain said single manufactured product (1) in correspondence with one of its portions at a predetermined distance from its end which has been blocked in said second station (B);
- also release the end of the manufactured product retained in said second station (B);
- in the case where the ends of the manufactured products being treated have a different thickness, record the thickness of the end of the manufactured product (1) retained in said second station (B); and
- move the manufactured product (1) thus treated towards and to a third unloading station (U), after having reversed its orientation if its thicker end results raised in said second station (B).
Avantageusement, conformément à l'invention, une ou plusieurs des phases précités de prélèvement, mouvement et/ou détente des produits manufacturés sont réalisés au moyens d'aspirations pneumatiques correspondantes réalisées selon la direction du mouvement et/ou de la détente même.Advantageously, in accordance with the invention, one or more several of the abovementioned sampling phases, movement and / or relaxation of manufactured products are carried out by means of pneumatic suction corresponding to the direction of movement and / or even relaxation.
Il est aussi avantageusement prévu de réaliser la
phase précité de relèvement de l'extrémité libre du
produit manufacturé dans ladite deuxième station
(B) par des moyens optiques.
En outre, avantageusement lesdites première et
troisième station (A,U) son prévue dans des
positions fixes et prédéterminées correspondantes,
pendant que la position de ladite deuxième station
(B) de pause est variable en relation à la
configuration istantanée prise par les produits
manufacturés (1). De toutes façons, conformément à
une forme alternative de réalisation, chacune
desdites stations (A,B,U) peut être fixe ou
autrement mobile.It is also advantageously planned to carry out the aforementioned phase of raising the free end of the manufactured product in said second station (B) by optical means.
In addition, advantageously said first and third stations (A, U) are provided in corresponding fixed and predetermined positions, while the position of said second pause station (B) is variable in relation to the instantaneous configuration taken by the manufactured products. (1). Anyway, in accordance with an alternative embodiment, each of said stations (A, B, U) can be fixed or otherwise mobile.
Avantageusement, le relèvement de l'épaisseur de l'extrémité du produit manufacturé retenue dans la deuxième station (B) précitée est opéré au moyen du passage du produit manufacturé à travers une ouverture ou filtre d'une grandeur mineur de l'épaisseur maximale du produit manufacturé même, selon la direction orientée de la deuxième station (B) à la station de sortie (U), ainsi d'en intercepter l'extrémité plus épaisse, si celle-ci a été retenue dans la deuxième station (B).Advantageously, the increase in the thickness of the end of the manufactured product retained in the second station (B) mentioned above is operated by means of the passage of the manufactured product through a aperture or filter of a minor magnitude of the maximum thickness of the manufactured product itself, according to the oriented direction of the second station (B) at the exit station (U), as well as intercept the thicker end, if it has retained in the second station (B).
Une ou plusieurs des phases opérationnelles
précitées sont réalisables même manuellement.
Pour ce qui concerne la réalisation du précité
procédé, comnformément à une possible forme de
réalisation de l'invention, un appareillage est
prévu comprenant, en combinaison:
- des moyens pour la prélèvement d'au moins un produit manufacturé (1) d'un amas ou d'un récipient (M), avec un corps tubulaire (2) asservi à une installation d'aspiration et pourvu d'une bouche (20) qu'on peut placer, à commande, en correspondance de l'amas (M), de manière à concerner une quelconque portion d'au moins un produit manufacturé (1);
- des moyens pour le mouvement de chaque produit manufacturé ainsi prélevé avec deux éléments tubulaires coaxiaux (3,30) qui présentent extrémités vis-à-vis et raccordées au moyen d'un chariot tubulaire (4) monté coulissant sur les parois desdits éléments (3,30) et asservi à un organe réalisateur (40) correspondant pour en permettre le mouvement le long d'un axe fondamentalement coïncident à celui qui est en comun aux portions d'extrémités vis-à-vis des éléments tubulaires (3,30) étant asservis aux moyens d'aspiration pneumatique agissants sur chacun de ces-ci;
- des moyens pour l'arrêt de chaque produit manufacturé en au moins un (30) desdits éléments (3,30), avec une plaque perforée (31) intérne audit élément, dans une première station fixe (A) du même, et articulée dans un point fixe pour en permettre la rotation, à commande d'un organe réalisateur (32) respectif, entre une première position de interception ou arrêt du produit manufacturé ou des produits manufacturés qui ont été prélevés et une deuxième position de passage libre des mêmes;
- des moyens pour retenir une portion d'au moins un produit manufacturé (1) en correspondance dedite station (A), avec un corps en forme de tige (33) asservi à un organe réalisateur (34) et dont l'extrémité libre est déstiné à agir, en position active, sur le produit manufacturé (1) en coopération avec la plaque (31) placée en position d'interception ou autrement avec la superficie d'une paroi intérne de l'élément tubulaire (30): ledit corps (33) étant passant dans un orifice (35) de guidage obtenu dans l'élément tubulaire (30) et l'organe réalisateur (34) respectif étant fixé en correspondance d'une paroi du même élément (30); en alternative, la plaque (31) peut être asservie à un mouvement de translation, plutôt que de rotation.
- des moyens pour relever l'extrémité libre du produit manufacturé (1) plus éloigné de la précitée station d'arrêt (A), avec une pluralité de capteurs optiques (41) portés par le précité chariot (4) et alignés selon un axe fondamentalement orthogonal à celui de mouvement du même;
- des moyens pour bloquer dans une deuxième station (B) ladite extrémité du produit manufacturé (1) dans la position relevée par lesdits moyens optiques, avec une pluralité de doigts (42), chacun desquels est associé à un capteur correspondant (41) et asservi à un réalisateur respectif (43), chaque doigt (42) étant articulé dans un point fixe pour en permettre la rotation à commande du capteur respectif (41) au moyen du réalisateur correspondant (43) et en porter l'extrémité libre à contact avec un tampon (44) placé du côté opposé et asservi à un réalisatuer correspondant (45), lesdits doigts (42) avec les réalisateurs respectifs (43) et ledit tampon (44) avec le réalisatuer respectif (43) étant solidaires au chariot (4);
- avantageusement, des moyens pour déterminer l'éventuelle présence de la portion plus épaisse du produit manufacturé en proximité de ladite deuxième station (B), avec une lame (46) placée passante dans une fente correspondante du chariot (4), orthogonalement à l'axe du mouvement de ce dernier en aval des moyens optiques (41) et asservie à un réalisateur correspondant (47) pour permettre de placer, à commande, l'extrémité libre respective (461) à une distance prédéterminée de la paroi intérne correspondante et opposée du chariot (4): telle distance étant opportunement sélectionée et réglable de façon à permettre le passage des parties du produit manufacturé (1) d'épaisseur mineure et rétenir celles d'épaisseur majeure et la lame (46) avec le réalisateur respectif (47) étant solidaires au chariot (4);
- des moyens, en aval de ladite lame (46), avec une deuxième plaque perforée (48) asservie à un réalisateur correspondant (49) pour intercepter, à commande, une portion correspondante du produit manufacturé (1);
- des moyens pour eventuellement inverser l'orientation du produit manufacturé (1), avec au moins un élément tubulaire (6) placé en aval de la deuxième station (B) et asservi à des moyens d'aspiration pneumatique pour permettre le mouvement du produit manufacturé à son intérieur.
As regards the implementation of the above-mentioned method, in addition to a possible embodiment of the invention, an apparatus is provided comprising, in combination:
- means for removing at least one manufactured product (1) from a mass or container (M), with a tubular body (2) slaved to a suction installation and provided with a mouth (20 ) which can be placed, on command, in correspondence with the pile (M), so as to relate to any portion of at least one manufactured product (1);
- means for the movement of each manufactured product thus sampled with two coaxial tubular elements (3.30) which have opposite ends and connected by means of a tubular carriage (4) slidably mounted on the walls of said elements (3 , 30) and slaved to a corresponding producing member (40) to allow movement thereof along an axis fundamentally coincident with that which is in common with the end portions vis-à-vis the tubular elements (3.30) being slaved to the pneumatic suction means acting on each of these;
- means for stopping each manufactured product in at least one (30) of said elements (3,30), with a perforated plate (31) internal to said element, in a first fixed station (A) of the same, and articulated in a fixed point to allow rotation thereof, at the command of a respective producing member (32), between a first position for intercepting or stopping the manufactured product or manufactured products which have been sampled and a second position for free passage of the same;
- means for retaining a portion of at least one manufactured product (1) in correspondence of said station (A), with a rod-shaped body (33) slaved to a producing member (34) and the free end of which is intended to act, in the active position, on the manufactured product (1) in cooperation with the plate (31) placed in the interception position or otherwise with the surface of an internal wall of the tubular element (30): said body ( 33) being passed through a guide hole (35) obtained in the tubular element (30) and the respective producing member (34) being fixed in correspondence with a wall of the same element (30); alternatively, the plate (31) can be slaved to a translational movement, rather than a rotary movement.
- means for raising the free end of the manufactured product (1) further from the aforementioned stop station (A), with a plurality of optical sensors (41) carried by the aforementioned carriage (4) and aligned along a basically axis orthogonal to that of movement of the same;
- means for locking in a second station (B) said end of the manufactured product (1) in the position raised by said optical means, with a plurality of fingers (42), each of which is associated with a corresponding sensor (41) and controlled to a respective director (43), each finger (42) being articulated in a fixed point to allow the controlled rotation of the respective sensor (41) by means of the corresponding director (43) and bringing the free end in contact with a pad (44) placed on the opposite side and slaved to a corresponding implement (45), said fingers (42) with the respective implementers (43) and said pad (44) with the respective implement (43) being integral with the carriage (4 );
- advantageously, means for determining the possible presence of the thicker portion of the manufactured product near said second station (B), with a blade (46) placed passably in a corresponding slot in the carriage (4), orthogonally to the axis of movement of the latter downstream of the optical means (41) and slaved to a corresponding producer (47) to allow placing, on command, the respective free end (461) at a predetermined distance from the corresponding and opposite internal wall of the carriage (4): such distance being suitably selected and adjustable so as to allow the passage of the parts of the manufactured product (1) of minor thickness and to retain those of major thickness and the blade (46) with the respective producer (47 ) being integral with the carriage (4);
- means, downstream of said blade (46), with a second perforated plate (48) slaved to a corresponding producer (49) to intercept, on command, a corresponding portion of the manufactured product (1);
- means for possibly reversing the orientation of the manufactured product (1), with at least one tubular element (6) placed downstream of the second station (B) and controlled by pneumatic suction means to allow the movement of the manufactured product inside.
Avantageuesement, à la bouche (20) du tube précité
(2) est associé un gicleur (21) pour souffler de
l'air comprimée en correspondance de la zone de
prélèvement des produits manufacturés du tas (M) et
ainsi libérer ces qui ont été prélévés par d'autres
eventuellement adhérents aux mêmes.
Ledit tube (2) est avantageusement du type à
structure télescopique, dont le mouvement est
commandé par au moins un réalisateur (22).
A ladite lame (46) est avantageusement associé un
capteur optique (460) lequel est destiné à relever
l'éventuelle présence d'une portion du produit
manufacturé (1) retenu dans la deuxième station
(B).Advantageously, with the mouth (20) of the aforementioned tube (2) is associated a nozzle (21) for blowing compressed air in correspondence with the area for taking manufactured products from the pile (M) and thus releasing those which have been collected by other members who may be members of the same.
Said tube (2) is advantageously of the type with a telescopic structure, the movement of which is controlled by at least one director (22).
With said blade (46) is advantageously associated an optical sensor (460) which is intended to detect the possible presence of a portion of the manufactured product (1) retained in the second station (B).
En outre, avantageusement, ledit tube (2) est pourvu, en correspondance de sa bouche (20), d'une vanne (23) apte à diminuer l'ouverture à commande, de manière que en phase de prélévement des produits manufacturés, l'ouverture soit minime pour interesser un minumun de produits manufacturés et, successivement à cette opération, l'ouverture soit maximale pour permettre le passage rapid du produit manufacturé ou des produits manufacturés à travers le tube (2), par effet de l'aspiration correspondante.In addition, advantageously, said tube (2) is provided, in correspondence with its mouth (20), with a valve (23) capable of reducing the command opening, in such a way that during the product collection phase manufactured, the opening is minimal for interest a minumun of manufactured products and, successively to this operation, the opening either maximum to allow rapid passage of the product manufactured or products manufactured across the tube (2), by effect of the suction corresponding.
A titre d'exemple non limitatif, et en référence
aux figures des dessins annexés, le tableau qui
suit indique les positions des vanne (V2, V3, V4,
V5, V6) de l'installation pneumatique associée à
l'appareillage décrit.
Dans le circuit illustré dans la fig. 8, les conduits (3) et (30) sont destinés à la récupération des produits manufacturés (1) en exès, c'est-à-dire éloignés de l'appareillage et destinés à être reconduits au récipient (M). In the circuit illustrated in fig. 8, the conduits (3) and (30) are intended for the recovery of excess manufactured products (1), that is to say distant from the apparatus and intended to be returned to the container (M).
Le functionnement du dispositif décrit, en
référence au cas des produits manufacturés avec
extrémité de différent épaisseur, est le suivant.
En position de commencement de cycle, le tube (2)
est mouvementé par le réalisateurs (22) de manière
à en porter la bouche (20) en correspondance de la
zone d'accumulation des produits manufacturés (1)
en attente de traitement (fig. 1A) et sont activés
les moyens d'aspiration respectifs pour opérer le
prélèvement d'au moins un produit manufacturé (1),
avec la vanne (23) disposée en position d'ouverture
minime de la bouche (20), et au moyen de l'air
comprimé en sortie du gicleur (21) se réalise le
détachement des produits manufacturés de l'amas (M)
adhérents à ces ainsi prélevés par le tube (2). Les
produits manufacturés de l'amas (M) peuvent
spontanement adhérer entre eux, vue la nature
propre du matériel dont ils sont constitués. Dans
le cas des bas, les produits manufacturés sont en
tissu tricoté obtenu par des fils de nature
synthétique qui tendent, en effet, à produire tel
effet d'adhésion spontanée. Ensuite, la vanne (23)
est disposée en position d'ouveture maximale de la
bouche (20) mais avant, la plaque (31) de la
station (A) est disposée en position de fermeture
de la portion correspondante du tube (30) (fig. 2A)
de manière à déteminer, dans ladite station (A),
l'arrêt du produit manufacturé ou des produits
manufacturés (1) prélevés au moyen du tube (2). A
ce point, le réalisateur (34) est activé pour
opérer le blocage des produits manufacturés au
moyen du corps (33) (fig. 2B) passant dans le guide
(35) du tube (30). Successivement, on inverti
l'aspiration, de manière à provoquer la distension
des produits manufacturés ainsi bloqués selon l'axe
longitudinal comun du complexe de conduits (3, 4,
30) et le chariot (4) est mouvementé dans la
direction indiquée par la fléche F de la fig. 3A
pour permettre la recherche de la portion
d'extrémité du produit manufacturé (1) qui resulte
plus éloignée de la précitée station (A). Plus
précisement, le chariot (4) est mouvementé jusqu'à
la relevation, par un quelconque des capteur (41),
de l'extrémité ou portion du produit manufacturé
(1) qui resulte plus éloignée du point de blocage
de la station (A). Et, dans cette position, le
doigt (42) associé au capteur (41) qui a réalisé le
relèvement dedite extrémité ou portion du produit
manufacturé, est actionné de manière à la comprimer
sur la superficie inférieure du tampon (44),
opportunement mouvementé vers le produit
manufacturé, qui est ainsi interposé, et ainsi la
bloquer (fig. 3B). De telle façon, avec l'invertion
successive de l'aspiration, la rétraction du corps
(33) et l'ouverture de la station (A) par rotation
de la plaque (31) dans le sens opposé à celui de
fermeture (figg. 4A, 4C), on obtient l'éloignement
des produits manufacturés libres de la prise du
doigt précité (42) à travers la section de décharge
(U) et on assure, ainsi, le successif traitement du
seul produit manufacturé (1) retenu par ledit doigt
(42) en coopération avec le tampon (44). A ce
point, le mouvement de la lame (46) est commandé au
moyen du réalisateur (47) et de la plaque (48) au
moyen du réalisateur (49). En suite, on commande la
libération du produit manufacturé (1) de la prise
du doigt (42) et du tampon (44). Avec l'activation
de la lame (46) on réalise un étranglement intérne
au chariot (4) tel à permettre seulement le passage
de la portion plus fine du produit manufacturé (1),
ainsi que si la partie du produit manufacturé qui a
été précedament bloquée au moyen du doigt (42) et
du tampon (44) est celle correspondante à la
portion plus fine, par effet de l'aspiration
persistante en direction de la station de décharge
(U) le produit manufacturé résulte avec la portion
plus épaisse déjà orientée vers cette station (U)
de l'appareillage (fig. 5A) , , c'est-à-dire prête
pour être prélévée par un dispositif en soi déjà
connu, par exemple du type décrit dans les brevets
IT 1215033, 1215035 et 1213536 du même titulaire,
au moyen du quel on alimente en succession les
formes d'une machine pour coudre les collants
après avoir traversé le conduit (30), avec la
plaque (48) placée en position de retenue de la
portion de produit manufacturé correspondante et
guidée par le chariot (U). Il va de soi que, la
plaque (48) libère le produit manufacturé lorsque
le précité dispositif prend livraison du produit
manufacturé (1) qui a été ainsi traité. Si, par
contre, la portion du produit manufacturé (1) qui a
été bloquée par ledit doigt (42) en coopération
avec le tampon (44) correspond à la portion plus
épaisse, ce qui est relevé par le capteur (460), la
portion plus fine du produit manufacturé résulte du
côté de la station de sortie (U) et on procede
comme il suit. Après on active l'aspiration dans le
conduit (6) placé entre la section de sortie (U) et
la station (A) (fig. 6A), de façon à y introduire
la portion la plus fine du produit manufacturé (1),
en suite on interrompt ladite aspiration et on
bloque la portion du produit manufacturé introduite
dans le conduit (6) pour en empêcher le mouvement;
après on aspire en direction de la station de
sortie (U) et on libère le produit manufacturé de
la prise des éléments (46) et (48) du chariot (4).
De telle façon, la portion plus épaisse du produit
manufacturé (1) sera tournée vers la station de
sortie (U), comme voulu. En fin, on libère la
portion du produit manufacturé qui a été introduite
dans le tube (6) pour en permettre la sortie à
travers la station (U).
Dans le cas où le produit manufacturé soit un bas,
du type spécialement apte à la fabrication des
collants, pour portion plus fine du produit
manufacturé on entendra la partie du bas en
correspondance de la pointe du pied et pour portion
plus épaisse on entendra celle en correspondance du
corps du collant.The function of the device described, with reference to the case of manufactured products with ends of different thickness, is as follows. In the cycle start position, the tube (2) is moved by the directors (22) so as to carry the mouth (20) in correspondence of the zone of accumulation of manufactured products (1) awaiting treatment (fig. 1A) and the respective suction means are activated to operate the removal of at least one manufactured product (1), with the valve (23) disposed in the position of minimal opening of the mouth (20), and by means compressed air at the outlet of the nozzle (21) is carried out the detachment of the manufactured products from the mass (M) adhering to these thus removed by the tube (2). The manufactured products of the cluster (M) can spontaneously adhere to each other, due to the specific nature of the material of which they are made up. In the case of stockings, the manufactured products are knitted fabric obtained by son of synthetic nature which tend, in fact, to produce such effect of spontaneous adhesion. Then, the valve (23) is placed in the position of maximum opening of the mouth (20) but before, the plate (31) of the station (A) is placed in the position of closing the corresponding portion of the tube (30). (Fig. 2A) so as to determine, in said station (A), the stopping of the manufactured product or of the manufactured products (1) sampled by means of the tube (2). At this point, the producer (34) is activated to block the manufactured products by means of the body (33) (fig. 2B) passing through the guide (35) of the tube (30). Successively, the suction is inverted, so as to cause the distention of the manufactured products thus blocked along the common longitudinal axis of the complex of conduits (3, 4, 30) and the carriage (4) is moved in the direction indicated by the arrow F in fig. 3A to allow the search for the end portion of the manufactured product (1) which results further from the above station (A). More precisely, the carriage (4) is moved up to the raising, by any of the sensors (41), of the end or portion of the manufactured product (1) which results more distant from the blocking point of the station (A ). And, in this position, the finger (42) associated with the sensor (41) which has raised said end or portion of the manufactured product, is actuated so as to compress it on the lower surface of the pad (44), suitably moved towards the manufactured product, which is thus interposed, and thus block it (fig. 3B). In such a way, with the successive inversion of the suction, the retraction of the body (33) and the opening of the station (A) by rotation of the plate (31) in the opposite direction to that of closing (figg. 4A, 4C), one obtains the distance of the free manufactured products from the grip of the aforementioned finger (42) through the discharge section (U) and one thus ensures the successive treatment of the only manufactured product (1) retained by said finger (42) in cooperation with the pad (44). At this point, the movement of the blade (46) is controlled by means of the director (47) and of the plate (48) by means of the director (49). Next, the release of the manufactured product (1) is controlled from the grip of the finger (42) and of the buffer (44). With the activation of the blade (46) an internal throttle is produced in the carriage (4) so as to allow only the passage of the finer portion of the manufactured product (1), as well as if the part of the manufactured product which was previously blocked by means of the finger (42) and the buffer (44) is that corresponding to the thinner portion, by effect of the persistent suction towards the discharge station (U) the manufactured product results with the thicker portion already oriented towards this station (U) of the apparatus (FIG. 5A), that is to say ready to be taken up by a device per se already known, for example of the type described in IT patents 1215033, 1215035 and 1213536 by the same holder, by means of which the shapes of a machine for sewing the tights are fed in succession after having passed through the conduit (30), with the plate (48) placed in the position for retaining the portion of the corresponding manufactured product and guided by the carriage (U). It goes without saying that, the plate (48) releases the manufactured product when the aforementioned device takes delivery of the manufactured product (1) which has been thus treated. If, on the other hand, the portion of the manufactured product (1) which has been blocked by said finger (42) in cooperation with the pad (44) corresponds to the thicker portion, which is detected by the sensor (460), the finer portion of the manufactured product results from the outlet station side (U) and the procedure is as follows. After activating the suction in the duct (6) placed between the outlet section (U) and the station (A) (fig. 6A), so as to introduce the finest portion of the manufactured product (1), then said suction is interrupted and the portion of the manufactured product introduced into the duct (6) is blocked to prevent movement thereof; afterwards we suck in the direction of the exit station (U) and we release the manufactured product from the grip of the elements (46) and (48) of the carriage (4). In this way, the thicker portion of the manufactured product (1) will be turned towards the exit station (U), as desired. Finally, the portion of the manufactured product which has been introduced into the tube (6) is released to allow it to exit through the station (U).
In the case where the manufactured product is a stocking, of the type specially suitable for the manufacture of tights, for the thinner portion of the manufactured product we will hear the bottom part corresponding to the toe and for the thicker portion we will hear the one in tights body match.
Pour la commande desdites phases opérationnelles,
on utilise une unité de commande programmable, en
soi déjà connue par les techniciens de l'automation
industrielle et, par conséquent, ne pas décrite en
détail.
Avantageusement, conformément à l'invention, ledit
tube (6) est à structure télescopique, dont le
mouvement est commandé par un réalisateur
correspondant (60) supporté par une partie fixe
(410) de l'appareillage.
La position de travail de la lame (46), c'est-à-dire
la distance de son extrémité (461) par rapport
à la paroi intérne correspondante du chariot (4),
est réglable par des moyens à vis (470) associés à
la tige du realisateur (47) avec function de fin de
course.For the control of said operational phases, a programmable control unit is used, in itself already known by the technicians of industrial automation and, therefore, not described in detail.
Advantageously, in accordance with the invention, said tube (6) is of telescopic structure, the movement of which is controlled by a corresponding producer (60) supported by a fixed part (410) of the apparatus.
The working position of the blade (46), that is to say the distance from its end (461) relative to the corresponding internal wall of the carriage (4), is adjustable by associated screw means (470) to the director rod (47) with limit switch function.
En référence au schema de la Fig. 8, avec (AS) est indiqué un aspirateur, avec (D) un distributeur, avec (50) et (51) deux conduits en aval des vannes (V2) et (V3) respectivement, pour la récupération des produits manufacturés (1) expulsés par l'appareillage et pour leur retour au récipient (M). Les cloches de récupération (52,53) sont en soi déjà connues par les hommes du métier. Au tube (2) est avantageusement associable un capteur optique - ne pas réprésenté pour simplification dans les figures des dessins annexés - en proximité de la bouche (20) pour relever la présence des produits manufacturés (1) du récipient ou du tas (M) et en correspondance arrêter et inverser la course des réalisateurs (22) après le prélèvement.With reference to the diagram in FIG. 8, with (AS) is indicated a vacuum cleaner, with (D) a distributor, with (50) and (51) two conduits downstream of the valves (V2) and (V3) respectively, for recovery manufactured products (1) expelled by the apparatus and for their return to the container (M). The recovery bells (52,53) are in already known to those skilled in the art. Advantageously, the tube (2) can be combined with a optical sensor - not shown for simplification in the figures of the accompanying drawings - near the mouth (20) to raise the presence of manufactured products (1) in the container or heap (M) and in correspondence stop and reverse the directors' course (22) after sample.
De façon équivalente à ce qui a été décrit en référence aux figures des dessins annexés, des moyens mécaniques peuvent être prevus pour opérer les précitéès phases de prélévement, mouvement et détente des produits manufacturés, comme par exemple des moyens à pince ou à chenilles opérants dans des positions fixes ou mobiles correspondantes de l'appareillage. Des tels moyens opérationnels peuvent être, par exemple, du type décrit dans les brevets sur mentionnés.Equivalently to what has been described in reference to the figures of the appended drawings, mechanical means can be provided to operate the above abstraction, movement and relaxation of manufactured products, as by example of gripper or track means in corresponding fixed or mobile positions of the apparatus. Such operational means may be, for example, of the type described in patents on mentioned.
Comme illustré sur la Fig. 10, selon une autre
forme de réalisation du dispositif, les moyens
(42,43,45,47,49) de la station B sont en position
fixe. Pour réaliser le procédé conformément à
l'invention, des rouleaux (R', R'', R''') sont
prévus disposés en position intermédiaire entre les
station (A) et (B) et chaque fois activés en couple
(R',R''; R',R'''). Plus précisément, les rouleaux
(R',R") alignés verticalement sont déstinés à
mouvementer le produit manufacturé, dont une
portion réduite est retenue dans la station (A),
vers la station (B), jusqu'à avoir tout le tissu du
produit manufacturé compris entre la station (A) et
les photocellules (41). Dans cette condition,
l'élément (42) associé à la photocellule (41)
découverte en dernier interviens.
En amont de la station (B) une photocellule (F) est
avantageusement prévue laquelle, une fois
découverte par le tissu en mouvement vers la
station (A), commande le ralentissement des
rouleaux (R', R") de traínement du produit
manufacturé, pour permettre un contrôle plus sur de
la part des photocellules (41) de la station (B).
Les rouleaux (R', R''') horizontalement alignés
sont activés seulement s'il faut envoyer
l'élastique à l'intérieur du conduit (6) pour un
trait de longueur prédéterminée pour après inverser
l'aspiration et obtenir la sortie du produit
manufacturé à travers la station de sortie (U) avec
la pointe tournée vers l'avant. Le mouvement des
rouleax (R',R'') peut être contrôlé par une
photocellule (FW) placée en correspondance d'une
position d'arrivé sur le conduit (6) ou aussi par
un temporisateur, ne pas représenté sur la figure.
Le rouleau (R') est monté de manière à pouvoir
s'éloigner du roulau (R'') dans le cas de
déchargement eventuel d'un produit manufacturé à
travers le conduit (6).
En amont de la station (B) une vanne (SV) peut être
prévue pour sectionner le conduit de guide des
produits manufacturés en traitement et obtenir une
zone d'attente (AT) déstinée au stationnement des
produits manufacturés à traiter par la suite. En
outre en correspondance de cette zone d'attente un
dispositif appelé "anti-twist" en soi déjà connu
peut être prévu.
Le récipient (1) qui contient les produits
manufacturés à traiter est avantageusement monté
tournant autour à son propre axe vertical central.As illustrated in Fig. 10, according to another embodiment of the device, the means (42,43,45,47,49) of station B are in a fixed position. To carry out the process according to the invention, rollers (R ', R'',R''') are provided arranged in an intermediate position between the stations (A) and (B) and each time activated in torque (R ' , R ''; R ', R'''). More precisely, the rollers (R ', R ") aligned vertically are intended to move the manufactured product, a reduced portion of which is retained in station (A), towards station (B), until all of the fabric of the manufactured product between the station (A) and the photocells (41) In this condition, the element (42) associated with the photocell (41) discovered last.
Upstream of the station (B) a photocell (F) is advantageously provided which, once discovered by the fabric moving towards the station (A), controls the slowing down of the rollers (R ', R ") for dragging the manufactured product , to allow more control on the part of the photocells (41) of the station (B). The rollers (R ', R''') horizontally aligned are activated only if it is necessary to send the elastic inside of the conduit (6) for a line of predetermined length for then reversing the aspiration and obtaining the output of the manufactured product through the outlet station (U) with the point facing forward. The movement of the rollers (R ', R '') can be controlled by a photocell (FW) placed in correspondence of an arrival position on the duct (6) or also by a timer, not shown in the figure. The roller (R ') is mounted so as to be able to move away from the roll (R '') in the event of possible unloading of a manufactured product through the conduit (6).
Upstream of the station (B) a valve (SV) can be provided to section the guide duct of the manufactured products being treated and to obtain a waiting zone (AT) intended for the parking of the manufactured products to be treated thereafter. In addition, in correspondence of this waiting area, a device called an “anti-twist” per se already known can be provided.
The container (1) which contains the manufactured products to be treated is advantageously mounted rotating around its own central vertical axis.
Claims (15)
- Apparatus for automatically picking up a tubular article of flexible and elastic material, such as a knitted stocking from a heap or container (M) in which a plurality of articles are accumulated in bulk, with a tube (2) linked to a suction system (AS), the article having two end portions of equal or different thickness, and for orienting said ends in a preset direction, characterized in that it comprises:means for moving by suction at least one article (1) thus removed with two horizontal, aligned and coaxial tubes (3,30) having facing ends and being joined by a tubular carriage (4) mounted for sliding on said tubes (3,30): the tubes (3, 30, 4) being linked to said suction system (AS) and with separate operating and corresponding to the desired direction o moving the article (1);means (31,32) for holding the most forward portion of at least one article (1) sucked in the tubes (3,30), to a stopping station (A) in correspondence of tube (30);optical sensor (41) carried by said carriage (4) and aligned according to an axis substantially orthogonal to the movement axis of the same, for detecting the article (1) portion which results further away from said first stopping station (A) while it is retained by said means (31,32) and, at the same time, it is stretched in a direction opposed to the direction of arrival to the station (A);means (42,43) associated to the sensor (41) in a station (B) foreseen in correspondence of the carriage (4) for operate the retention of said article (1) portion which results further away from the station (A).
- Apparatus according to claim 1 characterized in that said carriage (4) is engaged to an actuator (40) to allow same carriage to move along an axis substantially coincident with the one in common with the tubes (3,30).
- Apparatus according to claim 1, characterized in that said means for stopping each article (1) the station (A) comprises a perforated plate (31) located inside said element (30) and hinged at a fixed point to allow for its rotation under the control of a relevant actuator (32) between a first position for the interception or stopping of the picked-up articles and a second position for the free transit thereof.
- Apparatus according to claims 1 and 3 characterized in that said means for holding a portion of at least one article (1) in correspondence of said station (A) comprises a rod-like body (33) engaged to an actuator (34) and whose free end is intended to act, under operating conditions, on the article (1), in cooperation either with the plate (31) disposed in intercepting position, or with the surface of an inner wall of the tubular element (30): said body (33) going through a guide hole (35) formed in the tubular element (30) and the relevant actuator (34) being fixed in correspondence of a wall of the same element (30).
- Apparatus according to claim 1 characterized in that the means for retaining at the station (B) the end of the article (1) in the position detected by said optical sensors comprises a plurality of laminae (42) each of which is associated to a corresponding sensor (41) and engaged to a respective actuator (43), each lamina (42) being hinged at a fixed point to allow for the rotation thereof, under the control of the respective sensor (41), by means of the corresponding actuator (41) and bringing the free end thereof in contact with the article (1) in order to retain it in cooperation with a buffer (44) positioned on the opposite side and engaged to a corresponding actuator (45), the said laminae (42) with the respective actuators (43) and the said buffer (44) with the respective actuator (45) being integral with the carriage (4).
- Apparatus according to claim 1, characterized in that it comprises means for detecting any presence of the thicker portion of the article (1) in proximity of the station (B), with a lamina (46) going through a corresponding slit of the carriage (4), orthogonally to the axis of motion of the latter and downstream of the optical means (41), and engaged to a corresponding actuator (47) to allow for the positioning, under control, of the respective free end (461) at a preset distance from the corresponding and opposite inner wall of the carriage (4); such distance being suitably chosen and adjustable so as to allow for the transit of the article (1) portions of smaller thickness and to retain those of greater thickness; the lamina (46) with the respective actuator (47) being integral with the carriage (4).
- Apparatus according to claim 6, characterized in that it comprises a second perforated plate (48) engaged to a corresponding actuator (49) in order to intercept, under control, a corresponding portion of the article (1).
- Apparatus according to claim 1, characterized in that it comprises means for possibly inverting the orientation of the article (1), with at least one tube (6) linked to the tube (30) and engaged to said suction system (AS) to allow for the movement of the article (1) thereinside.
- Apparatus according to claim 1, characterized in that the mouth (20) of the said tube (2), is associated to a nozzle (21) for blowing compressed air in correspondence of the region in which the articles are picked up from the heap (M) so as to detach from those already removed others possibly adhering thereto.
- Apparatus according to claim 1, characterized in that said tube (2) is of telescopic type and driven into motion by at least one actuator (22).
- Apparatus according to claim 1, characterized in that said tube (2) is provided, in correspondence of its mouth (20), with a valve (23) able to controllably reducing the opening thereof so that, upon the article removal step, said opening be of minimum extent and thereby effecting the minimum number of articles (1) and, upon the next step, the same opening be of maximum extent to allow for a fast transit of the article(s) through the tube (2) by virtue of the corresponding suction.
- Apparatus according to claim 8, characterized in that said tube (6) is of a telescopic construction and is driven into a motion by a corresponding actuator (60) supported by the stationary part (410) of the apparatus.
- Apparatus according to claim 1, characterized in that said means for picking the articles (1) is provided with at least an optical sensor to detect the same articles.
- Apparatus according to claim 6, characterized in that said lamina (46) is associated to an optical sensor (460) whose function is to detect any presence of a thick portion of the article (1) held in the station (B).
- Apparatus according to claim 6, characterized in that the operative position of the lamina (46), that is, the distance of its end (461) from the corresponding inner wall of the carriage (4), is adjustable by screw means (470) which are associated to the rod of the actuator (47) and act as limit stops.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT96FI000163A IT1286671B1 (en) | 1996-07-09 | 1996-07-09 | METHOD AND EQUIPMENT FOR THE COLLECTION AND HANDLING OF TUBULAR PRODUCTS |
ITFI960163 | 1996-07-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0818570A1 EP0818570A1 (en) | 1998-01-14 |
EP0818570B1 true EP0818570B1 (en) | 2003-05-14 |
Family
ID=11351753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97830340A Expired - Lifetime EP0818570B1 (en) | 1996-07-09 | 1997-07-07 | Apparatus for collecting and moving tubular products |
Country Status (5)
Country | Link |
---|---|
US (1) | US5884822A (en) |
EP (1) | EP0818570B1 (en) |
JP (1) | JPH1072748A (en) |
DE (1) | DE69721901D1 (en) |
IT (1) | IT1286671B1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6155466A (en) * | 1997-06-02 | 2000-12-05 | Matec S.P.A. | Apparatus for stretching apart one end of a tubular article |
IT1308256B1 (en) | 1999-03-23 | 2001-12-10 | Matec Spa | DEVICE FOR THE AUTOMATIC ORIENTATION OF TUBULAR ARTICLES COMECALZE AND SIMILAR ITEMS. |
IT1314867B1 (en) * | 2000-07-21 | 2003-01-16 | Matec Spa | METHOD FOR DETECTING THE ORIENTATION OF A TEXTILE MANUFACTURE PRESENTING TWO DIFFERENT ENDS, EQUIPMENT FOR IMPLEMENTING THE ABOVE-MENTIONED |
US6820497B2 (en) | 2001-01-03 | 2004-11-23 | Threadbear, Llc | Method and apparatus for detecting and controlling orientation of articles for further processing |
ITPI20010021A1 (en) * | 2001-03-21 | 2002-09-21 | S R A S R L | METHOD AND EQUIPMENT FOR THE LONGITUDINAL ORIENTATION OF FOOTWEAR ITEMS |
DE10307416A1 (en) | 2002-02-20 | 2003-08-21 | Kannegiesser H Gmbh Co | Laundry suction pipe power cycles on and off in the presence of inlet blockage |
ITFI20020106A1 (en) * | 2002-06-18 | 2003-12-18 | Matec Spa | DEVICE AND METHOD FOR DETECTING THE ORIENTATION OF MANUFACTURERS SUCH AS MEN'S SOCKS AND SOCKS |
US7044071B2 (en) * | 2003-01-24 | 2006-05-16 | B.B. & S Knitting Consultants | Apparatus and method for automatically orienting hosiery articles for closing toe ends thereof |
MXPA06011935A (en) * | 2004-04-16 | 2007-04-13 | Golden Lady Co Spa | Machine for handling tubular knitted articles, such as socks or the like. |
WO2007020667A1 (en) * | 2005-08-19 | 2007-02-22 | Golden Lady Company S.P.A. | Device and method for handling tubular knitted articles, such as stockings and socks or the like |
ITFI20060118A1 (en) * | 2006-05-19 | 2007-11-20 | Golden Lady Co Spa | METHOD AND DEVICE TO DISCRIMINATE THE ONE COMPARED TO THE OTHER TWO ENDS OF A MANUFACTURE |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1523778A (en) * | 1967-05-19 | 1968-05-03 | Feinstrumpfwerke Esda Veb | Device for pneumatic turning of tubular raw articles, for example circular knitting ladies' bottom |
DE1907167A1 (en) * | 1968-03-09 | 1969-10-02 | Arrigo Micheletti | Pneumatic device for stretching out socks and similar items |
US3696942A (en) * | 1970-09-30 | 1972-10-10 | Usm Corp | Means for transferring successive flexible work pieces |
US4539924A (en) * | 1981-08-28 | 1985-09-10 | Consolidated Foods Corporation | Loading system for a toe closing assembly |
US5040475A (en) * | 1989-01-28 | 1991-08-20 | Sara Lee Corporation | Material handling system |
US5165355A (en) * | 1991-03-26 | 1992-11-24 | Sara Lee Corporation | Method and apparatus for handling hosiery blanks |
IT1250168B (en) * | 1991-06-03 | 1995-04-03 | Metalprogetti Snc | BELT TRANSPORT AERIAL PLANT, ABLE TO SORT ORDER THE GARMENTS WHICH ARE LOADED ON IT IN BULK. |
IT1257118B (en) * | 1992-10-01 | 1996-01-05 | Rosso Ind Spa In Persona Dell | DEVICE THAT CAN BE COMBINED WITH AN AUTOMATIC STITCHER, SUITABLE FOR SEPARATING WITHOUT MANUAL INTERVENTION SOCKS COMPLETELY REVERSED FROM THOSE ONLY PARTIALLY REVERSE. |
IT1265876B1 (en) * | 1993-06-25 | 1996-12-12 | Solis Srl | METHOD AND DEVICE FOR PLACING TWO TUBULAR ARTICLES IN A PRESET POSITION ON A CORRESPONDING SUPPORT |
US5544603A (en) * | 1994-04-05 | 1996-08-13 | Monarch Knitting Machinery Corporation | Apparatus for handling flexible objects |
US5456392A (en) * | 1994-06-01 | 1995-10-10 | Majors; James W. | Sock sorting device |
GB9507510D0 (en) * | 1995-04-11 | 1995-05-31 | Detexomat Machinery Ltd | Method & apparatus for manipulating a length of flexible material |
IT1283271B1 (en) * | 1996-03-18 | 1998-04-16 | Essedue S R L | PNEUMATIC FEEDING DEVICE FOR SOCKS, USED WITH PNEUMATIC TRANSPORT SYSTEMS OF AD SOCKS |
-
1996
- 1996-07-09 IT IT96FI000163A patent/IT1286671B1/en active IP Right Grant
-
1997
- 1997-07-07 EP EP97830340A patent/EP0818570B1/en not_active Expired - Lifetime
- 1997-07-07 DE DE69721901T patent/DE69721901D1/en not_active Expired - Lifetime
- 1997-07-08 US US08/889,633 patent/US5884822A/en not_active Expired - Fee Related
- 1997-07-08 JP JP9197793A patent/JPH1072748A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
ITFI960163A1 (en) | 1998-01-09 |
DE69721901D1 (en) | 2003-06-18 |
US5884822A (en) | 1999-03-23 |
IT1286671B1 (en) | 1998-07-15 |
EP0818570A1 (en) | 1998-01-14 |
JPH1072748A (en) | 1998-03-17 |
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