ITTO20120315A1 - SYSTEM FOR FABRIC INTRODUCTION IN DIGITAL PRINTING MACHINES - Google Patents

SYSTEM FOR FABRIC INTRODUCTION IN DIGITAL PRINTING MACHINES Download PDF

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Publication number
ITTO20120315A1
ITTO20120315A1 IT000315A ITTO20120315A ITTO20120315A1 IT TO20120315 A1 ITTO20120315 A1 IT TO20120315A1 IT 000315 A IT000315 A IT 000315A IT TO20120315 A ITTO20120315 A IT TO20120315A IT TO20120315 A1 ITTO20120315 A1 IT TO20120315A1
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IT
Italy
Prior art keywords
bar
respect
digital printing
printing machine
fabric
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IT000315A
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Italian (it)
Inventor
Roberto Corino
Original Assignee
Corino Macchine S P A
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Application filed by Corino Macchine S P A filed Critical Corino Macchine S P A
Priority to IT000315A priority Critical patent/ITTO20120315A1/en
Publication of ITTO20120315A1 publication Critical patent/ITTO20120315A1/en

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • D06C3/06—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by rotary disc, roller, or like apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
    • B41J15/042—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles for loading rolled-up continuous copy material into printers, e.g. for replacing a used-up paper roll; Point-of-sale printers with openable casings allowing access to the rolled-up continuous copy material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4078—Printing on textile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Coloring (AREA)

Description

Descrizione dell’Invenzione Industriale avente per titolo: Description of the Industrial Invention entitled:

"SISTEMA PER L'INTRODUZIONE DI TESSUTO IN MACCHINE DA STAMPA DIGITALI" "SYSTEM FOR THE INTRODUCTION OF FABRIC IN DIGITAL PRINTING MACHINES"

DESCRIZIONE DESCRIPTION

La presente invenzione si riferisce ad un sistema per l'introduzione di tessuto in macchine da stampa digitali. The present invention refers to a system for introducing fabric into digital printing machines.

Nel campo della produzione e stampa di tessuti, stanno avendo oggigiorno sempre maggior diffusione le macchine da stampa digitali, finora comunemente utilizzate per la stampa su carta. Proprio per la diversa natura del supporto di stampa, e per la tipologia di stampa di tali macchine, le quali necessitano di avere il tessuto fermo, teso e non piegato durante la fase di stampa, sono necessari sistemi di alimentazione del tessuto che tengano conto della tipologia di tessuto da alimentare (tessuto elastico che può e deve essere tirato, tessuto da non tirare ma da cui vanno eliminate eventuali pieghe, ecc.) e delle necessità della macchina di stampa a valle. In the field of fabric production and printing, digital printing machines, which up to now have been commonly used for printing on paper, are becoming increasingly popular today. Precisely due to the different nature of the printing support, and the type of printing of these machines, which need to have the fabric still, taut and not folded during the printing phase, fabric feeding systems are required that take into account the type of fabric to be fed (elastic fabric that can and must be pulled, fabric not to be pulled but from which any creases must be eliminated, etc.) and the needs of the downstream printing machine.

Tali sistemi di alimentazione noti, compresi quelli commercializzati dal Richiedente della presente invenzione, sono in generale costituiti da un rullo centratore e allargatore del tessuto ed una serie di rulli ballerini o celle di carico per mantenere la tensione longitudinale del tessuto in entrata. Tali sistemi, così come le macchine da stampa a valle, necessitano spesso di manutenzione e pertanto devono essere scollegati dalla linea di stampa e ricollegati ad essa in modo rapido, preciso (cioè allineato con la macchina di stampa) e talvolta devono essere spostati (a causa della larghezza del tessuto da alimentare rispetto all'entrata della macchina da stampa) rispetto alla mezzeria di entrata della macchina da stampa stessa. Said known feeding systems, including those marketed by the Applicant of the present invention, are generally constituted by a centering and spreading roller of the fabric and a series of dancing rollers or load cells to maintain the longitudinal tension of the incoming fabric. Such systems, as well as downstream printing machines, often require maintenance and therefore must be disconnected from the printing line and reconnected to it quickly, accurately (i.e. aligned with the printing machine) and sometimes have to be moved (a due to the width of the fabric to be fed with respect to the entry of the printing machine) with respect to the entry center line of the printing machine itself.

Queste operazioni non sono attualmente agevoli e richiedono tempi lunghi, e quindi costi elevati, ostacolando la produttività di linee di stampa di questo tipo. These operations are currently not easy and require long times, and therefore high costs, hindering the productivity of printing lines of this type.

Scopo quindi della presente invenzione è risolvere i suddetti problemi della tecnica anteriore, fornendo un sistema per l'introduzione di tessuto in macchine da stampa digitali che sia dotato di mezzi di movimentazione rapida del sistema in caso di manutenzione, riparazione, ecc. e contemporaneamente sia dotato di mezzi atti a consentire di ottenere, con un’unica struttura di agevole ed economica realizzazione, le funzioni di: allineamento del sistema con l'entrata della macchina da stampa digitale a valle; eventuale spostamento a destra e sinistra del sistema rispetto all'entrata della macchina da stampa digitale a valle; e bloccaggio antirotazione del sistema rispetto all'entrata della macchina da stampa digitale a valle. Therefore, the object of the present invention is to solve the aforesaid problems of the prior art, providing a system for introducing fabric into digital printing machines which is equipped with means for rapid movement of the system in case of maintenance, repair, etc. and at the same time is equipped with means to allow to obtain, with a single structure that is easy and economical to implement, the functions of: aligning the system with the digital printing machine entrance downstream; possible left and right movement of the system with respect to the inlet of the digital printing machine downstream; and anti-rotation locking of the system with respect to the inlet of the digital printing machine downstream.

I suddetti ed altri scopi e vantaggi dell’invenzione, quali risulteranno dal seguito della descrizione, vengono raggiunti con un sistema come descritto nella rivendicazione 1. Forme di realizzazione preferite e varianti non banali della presente invenzione formano l’oggetto delle rivendicazioni dipendenti. The aforementioned and other purposes and advantages of the invention, which will emerge from the following description, are achieved with a system as described in claim 1. Preferred embodiments and non-trivial variants of the present invention form the subject of the dependent claims.

Resta inteso che tutte le rivendicazioni allegate formano parte integrante della presente descrizione. It is understood that all the attached claims form an integral part of the present description.

Risulterà immediatamente ovvio che si potranno apportare a quanto descritto innumerevoli varianti e modifiche (per esempio relative a forma, dimensioni, disposizioni e parti con funzionalità equivalenti) senza discostarsi dal campo di protezione dell'invenzione come appare dalle rivendicazioni allegate. It will be immediately obvious that innumerable variations and modifications (for example relating to shape, dimensions, arrangements and parts with equivalent functionality) can be made to what has been described without departing from the scope of the invention as appears from the attached claims.

La presente invenzione verrà meglio descritta da alcune forme preferite di realizzazione, fornite a titolo esemplificativo e non limitativo, con riferimento ai disegni allegati, in cui: The present invention will be better described by some preferred embodiments, provided by way of non-limiting example, with reference to the attached drawings, in which:

- la Figura 1 è una vista laterale di una forma di realizzazione del sistema inventivo; Figure 1 is a side view of an embodiment of the inventive system;

- la Figura 2 è una vista frontale del sistema di Figura 1; Figure 2 is a front view of the system of Figure 1;

- la Figura 3 è una vista laterale in dettaglio di una parte interna del sistema inventivo che illustra i contrappesi e i pistoni applicati ai rulli ballerini; Figure 3 is a detailed side view of an internal part of the inventive system which illustrates the counterweights and pistons applied to the dancer rollers;

- la Figura 4 è una vista in dettaglio di parte di Figura 3; Figure 4 is a detail view of part of Figure 3;

- la Figura 5 è una vista frontale in dettaglio simile alla Figura 2 in cui sono evidenziati i mezzi di centratura del tessuto; Figure 5 is a front view in detail similar to Figure 2 in which the fabric centering means are highlighted;

- la Figura 6 è una vista laterale del sistema inventivo che evidenzia il dispositivo di sollevamento; Figure 6 is a side view of the inventive system which highlights the lifting device;

- la Figura 7 è una vista frontale del sistema di Figura 6; e Figure 7 is a front view of the system of Figure 6; And

- la Figura 8 è una vista laterale del sistema di Figura 7 presa sul lato opposto rispetto a quello di Figura 6. - Figure 8 is a side view of the system of Figure 7 taken on the opposite side with respect to that of Figure 6.

Facendo quindi riferimento alle Figure, il sistema 1 dell'invenzione consente l'introduzione di tessuto 3 in macchine da stampa digitali, ed è dotato sostanzialmente di: With reference therefore to the Figures, the system 1 of the invention allows the introduction of fabric 3 into digital printing machines, and is substantially equipped with:

- mezzi 5, 7, 9 di movimentazione rapida del sistema 1; e - means 5, 7, 9 for rapid movement of the system 1; And

- mezzi 11, 13, 15 atti a consentire, contemporaneamente: - means 11, 13, 15 capable of simultaneously allowing:

• allineamento del sistema 1 con l'entrata della macchina da stampa digitale a valle; • eventuale spostamento a destra e sinistra del sistema 1 rispetto all'entrata della macchina da stampa digitale a valle; e • bloccaggio antirotazione del sistema 1 rispetto all'entrata della macchina da stampa digitale a valle. • alignment of system 1 with the inlet of the digital printing machine downstream; • possible movement to the right and left of the system 1 with respect to the inlet of the digital printing machine downstream; and • anti-rotation locking of the system 1 with respect to the inlet of the downstream digital printing machine.

In particolare, i mezzi 5, 7, 9 di movimentazione rapida sono costituiti da almeno due ruote 5 poste su un primo lato del sistema 1 e/o almeno due piedini 7 posti su un secondo lato del sistema 1 opposto al primo lato e/o un dispositivo 9 del tipo a vite 9’ e manovella 9’’ atto a sollevare/abbassare il sistema 1 rispetto al terreno. In particular, the means 5, 7, 9 for rapid movement consist of at least two wheels 5 placed on a first side of the system 1 and / or at least two feet 7 placed on a second side of the system 1 opposite the first side and / or a device 9 of the type with screw 9 'and crank 9' 'adapted to raise / lower the system 1 with respect to the ground.

Ancora in particolare, i mezzi 11, 13, 15 sono costituiti da: almeno una barra 11, preferibilmente allungata, che si estende in senso longitudinale e parallelo all'asse longitudinale del sistema 1 ed è collocata in posizione fissa e inamovibile sul terreno a monte della macchina da stampa digitale; almeno un elemento di appoggio 13 posto su un lato del sistema 1 ed atto a venire a contatto con la barra 11 in fase di installazione operativa del sistema 1; ed almeno un elemento di aggancio 15 posto sullo stesso lato del sistema 1 su cui è posto l'almeno un elemento di appoggio 13. Still in particular, the means 11, 13, 15 consist of: at least one bar 11, preferably elongated, which extends longitudinally and parallel to the longitudinal axis of the system 1 and is placed in a fixed and immovable position on the upstream ground of the digital printing machine; at least one support element 13 placed on one side of the system 1 and able to come into contact with the bar 11 during the operational installation phase of the system 1; and at least one hooking element 15 placed on the same side of the system 1 on which the at least one support element 13 is placed.

L'elemento di aggancio 15 è atto ad agganciare la barra 11 dopo che l'elemento di appoggio 13 corrispondente è stato posto a contatto con la barra 11, in modo da fissare il sistema 1 alla barra 11 in maniera inamovibile, allineata ed eventualmente spostata a destra o sinistra rispetto all'entrata della macchina da stampa digitale a valle. The hooking element 15 is able to hook the bar 11 after the corresponding support element 13 has been placed in contact with the bar 11, so as to fix the system 1 to the bar 11 in an irremovable, aligned and possibly displaced manner. to the right or left of the downstream digital press entrance.

Nella configurazione preferita, ma non limitativa, illustrata nelle Figure, l'elemento di appoggio 13 è costituito da almeno una piastra e l'elemento di aggancio 15 è costituito da un gancio atto ad essere agganciato completamente intorno alla barra 11. In the preferred but non-limiting configuration illustrated in the Figures, the support element 13 consists of at least one plate and the hooking element 15 consists of a hook able to be hooked completely around the bar 11.

Sempre secondo quanto illustrato, è ovvio che la configurazione preferita di impiego preveda che gli elementi di appoggio 13 e gli elementi di aggancio 15 siano due, posti in corrispondenza del primo lato e del secondo lato del sistema 1, cioè rispettivamente in corrispondenza delle ruote 5 e dei piedini 7. Again according to what has been illustrated, it is obvious that the preferred configuration of use provides that the support elements 13 and the coupling elements 15 are two, placed in correspondence with the first side and the second side of the system 1, i.e. respectively in correspondence with the wheels 5 and feet 7.

Per quanto riguarda il funzionamento del sistema 1 così strutturato, in fase di manutenzione o sostituzione, esso viene agevolmente rimosso dalla linea di stampa sollevandolo tramite il dispositivo 9 e spostandolo tramite le ruote 5. Dopo aver compiuto le necessarie operazioni, il sistema 1 viene rimesso nella posizione originaria, perfettamente allineata con la macchina di stampa a valle, spostandolo fino a quando gli elementi di appoggio 13 non vengono a contatto con la barra 11 posta sul terreno davanti alla macchina di stampa. Una volta raggiunto il contatto con la barra 11 su tutta la lunghezza del sistema 1, gli elementi di aggancio 15 vengono abbassati ad agganciare la barra 11 stessa; si procede quindi all’abbassamento del sistema 1 mediante il dispositivo 9 fino a quando i piedini 7 non vengono di nuovo a contatto con il terreno. Il sistema 1 risulta così allineato con la macchina (in qualsiasi posizione di entrata, anche spostata lateralmente a destra o sinistra rispetto alla mezzeria della macchina) e la connessione degli elementi di aggancio 15 alla barra 11, con il supporto degli elementi di appoggio 13, impedisce inoltre la rotazione e/o il ribaltamento del sistema 1 in posizione operativa. As regards the operation of the system 1 thus structured, during maintenance or replacement, it is easily removed from the printing line by lifting it by means of the device 9 and moving it by means of the wheels 5. After carrying out the necessary operations, the system 1 is put back on in the original position, perfectly aligned with the downstream printing machine, moving it until the support elements 13 come into contact with the bar 11 located on the ground in front of the printing machine. Once contact with the bar 11 has been reached along the entire length of the system 1, the hooking elements 15 are lowered to hook the bar 11 itself; the system 1 is then lowered by means of the device 9 until the feet 7 come into contact with the ground again. The system 1 is thus aligned with the machine (in any entry position, also shifted laterally to the right or left with respect to the center line of the machine) and the connection of the hooking elements 15 to the bar 11, with the support of the support elements 13, it also prevents rotation and / or overturning of the system 1 into the operative position.

Il sistema 1 dell'invenzione può essere dotato inoltre di un dispositivo di regolazione con bolla 16 e volantino 17 atto a verificare e realizzare, tramite movimenti di sollevamento/abbassamento laterali, la planarità e la posizione parallela del sistema 1 rispetto alla macchina di stampa digitale a valle. The system 1 of the invention can also be equipped with an adjustment device with a bubble 16 and a handwheel 17 able to verify and realize, by means of lateral lifting / lowering movements, the planarity and the parallel position of the system 1 with respect to the digital printing machine. downstream.

Ancora, il sistema 1 inventivo può comprendere almeno un rullo centratore ed allargatore 18 dotato di una pluralità di doghe 20 longitudinali interrotte in un punto centrale 22 ed atte ad effettuare centratura ed allargatura del tessuto; in questa configurazione, il sistema 1 comprende inoltre mezzi 24 di ausilio alla centratura del tessuto rispetto al punto centrale 22. Furthermore, the inventive system 1 can comprise at least one centering and spreading roller 18 equipped with a plurality of longitudinal staves 20 interrupted in a central point 22 and suitable for centering and widening the fabric; in this configuration, the system 1 also comprises means 24 to help center the fabric with respect to the central point 22.

In particolare, tali mezzi 24 di ausilio alla centratura del tessuto sono costituiti da almeno una sbarra 26 atta a connettere un sistema di movimentazione 28 del rullo centratore e allargatore 18 con un sistema condotto 30: questa sbarra 26 è dotata di almeno un segno di riferimento 32, 33 atto a spostarsi rispetto al punto centrale 22 in caso di movimentazione non corretta del sistema di movimentazione 28, segnalando in tal modo all'operatore del sistema 1 che è necessario intervenire. In particular, these means 24 for assisting the centering of the fabric consist of at least one bar 26 suitable for connecting a movement system 28 of the centering and spreading roller 18 with a driven system 30: this bar 26 is equipped with at least one reference mark 32, 33 adapted to move with respect to the central point 22 in case of incorrect movement of the movement system 28, thus signaling to the operator of the system 1 that it is necessary to intervene.

Inoltre, il sistema 1 dell'invenzione può essere dotato di almeno un rullo ballerino 32, 33 di sincronizzazione della velocità del tessuto (realizzato preferibilmente in alluminio onde risultare leggero a contatto con il tessuto), in cui il rullo ballerino 32, 33 è accoppiato operativamente, solo a spinta, ad almeno un contrappeso 34 atto a ridurre il peso, e quindi la spinta, del rullo ballerino 32, 33 sul tessuto 3 a seconda se il tipo di tessuto richiede una maggiore o minore forza di tiro applicata ad esso. Furthermore, the system 1 of the invention can be equipped with at least one dancer roller 32, 33 for synchronizing the speed of the fabric (preferably made of aluminum in order to be light in contact with the fabric), in which the dancer roller 32, 33 is coupled operatively, only by thrust, to at least one counterweight 34 adapted to reduce the weight, and therefore the thrust, of the dancer roller 32, 33 on the fabric 3 according to whether the type of fabric requires a greater or lesser pulling force applied to it.

Per variare ulteriormente la forza applicata al tessuto, il contrappeso 34 può inoltre essere atto ad essere impegnato operativamente da almeno un pistone 36 con ritorno a molla 38, che normalmente è disaccoppiato dal contrappeso 34 e va ad impegnarlo in ulteriore spinta soltanto se comandato dal sistema di controllo e gestione della macchina, qualora sia necessario modificare la spinta finale del contrappeso 34 sul rullo ballerino 32, 33. To further vary the force applied to the fabric, the counterweight 34 can also be adapted to be operatively engaged by at least one piston 36 with spring return 38, which is normally decoupled from the counterweight 34 and engages it in further thrust only if commanded by the system. control and management of the machine, if it is necessary to modify the final thrust of the counterweight 34 on the dancer roller 32, 33.

Si sono descritte alcune forme preferite di attuazione dell’invenzione, ma naturalmente esse sono suscettibili di ulteriori modifiche e varianti nell’ambito della medesima idea inventiva. In particolare, agli esperti nel ramo risulteranno immediatamente evidenti numerose varianti e modifiche, funzionalmente equivalenti alle precedenti, che ricadono nel campo di protezione dell'invenzione come evidenziato nelle rivendicazioni allegate. Some preferred forms of implementation of the invention have been described, but of course they are susceptible to further modifications and variations within the same inventive idea. In particular, numerous variants and modifications, functionally equivalent to the preceding ones, which fall within the scope of the invention will be immediately apparent to those skilled in the art, as highlighted in the attached claims.

Claims (10)

RIVENDICAZIONI 1. Sistema (1) per l'introduzione di tessuto (3) in macchine da stampa digitali, caratterizzato dal fatto di essere dotato di: - mezzi (5, 7, 9) di movimentazione rapida del sistema (1); e - mezzi (11, 13, 15) atti a consentire, contemporaneamente: • allineamento del sistema (1) con l'entrata della macchina da stampa digitale a valle; • eventuale spostamento a destra e sinistra del sistema (1) rispetto all'entrata della macchina da stampa digitale a valle; e • bloccaggio antirotazione del sistema (1) rispetto all'entrata della macchina da stampa digitale a valle. 2. Sistema (1) secondo la rivendicazione 1, caratterizzato dal fatto che detti mezzi (5, 7, 9) di movimentazione rapida sono costituiti da almeno due ruote (5) poste su un primo lato del sistema (1) e/o almeno due piedini (7) posti su un secondo lato del sistema (1) opposto al primo lato e/o un dispositivo (9) del tipo a vite (9’) e manovella (9’’) atto a sollevare/abbassare il sistema (1) rispetto al terreno. 3. Sistema (1) secondo la rivendicazione 1, caratterizzato dal fatto che detti mezzi (11, 13, 15) sono costituiti da: almeno una barra (11), preferibilmente allungata, che si estende in senso longitudinale e parallelo all'asse longitudinale del sistema (1) ed è collocata in posizione fissa e inamovibile sul terreno a monte della macchina da stampa digitale; almeno un elemento di appoggio (13) posto su un lato del sistema (1) ed atto a venire a contatto con la barra (11) in fase di installazione operativa del sistema (1); e almeno un elemento di aggancio (15) posto sullo stesso lato del sistema (1) su cui è posto l'almeno un elemento di appoggio (13), detto elemento di aggancio (15) essendo atto ad agganciare la barra (11) dopo che l'elemento di appoggio (13) corrispondente è stato posto a contatto con la barra (11), in modo da fissare il sistema (1) alla barra (11) in maniera inamovibile, allineata ed eventualmente spostata a destra o sinistra rispetto all'entrata della macchina da stampa digitale a valle. 4. Sistema (1) secondo la rivendicazione 3, caratterizzato dal fatto che detto elemento di appoggio (13) è costituito da almeno una piastra e detto elemento di aggancio (15) è costituito da un gancio atto ad essere agganciato completamente intorno a detta barra (11). 5. Sistema (1) secondo la rivendicazione 3 o 4, caratterizzato dal fatto che detti elementi di appoggio (13) e detti elementi di aggancio (15) sono due, posti in corrispondenza del primo lato e del secondo lato del sistema (1). 6. Sistema (1) secondo una qualsiasi delle rivendicazioni precedenti, caratterizzato dal fatto di essere dotato inoltre di un dispositivo di regolazione con bolla (16) e volantino (17) atto a verificare e realizzare, tramite movimenti di sollevamento/abbassamento laterali, la planarità e la posizione parallela del sistema (1) rispetto alla macchina di stampa digitale a valle. 7. Sistema (1) secondo una qualsiasi delle rivendicazioni precedenti, comprendente almeno un rullo centratore ed allargatore (18) dotato di una pluralità di doghe (20) longitudinali interrotte in un punto centrale (22) ed atte ad effettuare centratura ed allargatura del tessuto, caratterizzato dal fatto di comprendere inoltre mezzi (24) di ausilio alla centratura del tessuto rispetto al punto centrale (22). 8. Sistema (1) secondo la rivendicazione 7, caratterizzato dal fatto che detti mezzi (24) di ausilio alla centratura del tessuto sono costituiti da almeno una sbarra (26) atta a connettere un sistema di movimentazione (28) del rullo centratore e allargatore (18) con un sistema condotto (30), detta sbarra (26) essendo dotata di almeno un segno di riferimento (32, 33) atto a spostarsi rispetto al punto centrale (22) in caso di movimentazione non corretta di detto sistema di movimentazione (28). 9. Sistema (1) secondo una qualsiasi delle rivendicazioni precedenti, caratterizzato dal fatto di essere dotato inoltre di almeno un rullo ballerino (32, 33) di sincronizzazione della velocità del tessuto, detto rullo ballerino (32, 33) essendo accoppiato operativamente ad almeno un contrappeso (34) atto a ridurre il peso, e quindi la spinta, del rullo ballerino (32, 33) sul tessuto (3), detto contrappeso (34) essendo atto ad essere impegnato operativamente, solo a spinta, da almeno un pistone (36) con ritorno a molla (38) qualora sia necessario modificare la spinta di detto contrappeso (34) su detto rullo ballerino (32, 33). 10. Sistema (1) secondo la rivendicazione 1, caratterizzato dal fatto di essere dotato inoltre di una pluralità di celle di carico atte a mantenere la tensione longitudinale del tessuto (3). RIVENDICAZIONI 1. System (1) for introducing tissue (3) into digital printing machines, characterised in that it is equipped with: - means (5, 7, 9) for quickly moving the system (1); and means (11, 13, 15) adapted to simultaneously allow: • aligning the system (1) with an entry of the downstream digital printing machine; • possibly moving the system (1) rightwards or leftwards with respect to the entry of the downstream digital printing machine; and • blocking the system (1) preventing its rotation with respect to the entry of the downstream digital printing machine. CLAIMS 1. System (1) for introducing fabric (3) into digital printing machines, characterized by being equipped with: - means (5, 7, 9) for rapid movement of the system (1); And - means (11, 13, 15) capable of simultaneously allowing: • alignment of the system (1) with the inlet of the digital printing machine downstream; • possible movement to the right and left of the system (1) with respect to the inlet of the digital printing machine downstream; and • anti-rotation locking of the system (1) with respect to the inlet of the downstream digital printing machine. 2. System (1) according to claim 1, characterized in that said means (5, 7, 9) for rapid movement consist of at least two wheels (5) placed on a first side of the system (1) and / or at least two feet (7) placed on a second side of the system (1) opposite the first side and / or a device (9) of the screw (9 ') and crank (9' ') type to raise / lower the system ( 1) with respect to the ground. System (1) according to claim 1, characterized in that said means (11, 13, 15) consist of: at least one bar (11), preferably elongated, which extends longitudinally and parallel to the longitudinal axis of the system (1) and is placed in a fixed and immovable position on the ground upstream of the digital printing machine; at least one support element (13) placed on one side of the system (1) and able to come into contact with the bar (11) during the operational installation phase of the system (1); and at least one hooking element (15) placed on the same side of the system (1) on which the at least one support element (13) is placed, said hooking element (15) being able to hook the bar (11) after that the corresponding support element (13) has been placed in contact with the bar (11), so as to fix the system (1) to the bar (11) in an irremovable manner, aligned and possibly shifted to the right or left with respect to the entry of the digital press downstream. 4. System (1) according to claim 3, characterized in that said support element (13) consists of at least one plate and said coupling element (15) consists of a hook able to be hooked completely around said bar (11). 5. System (1) according to claim 3 or 4, characterized by the fact that said support elements (13) and said hooking elements (15) are two, placed in correspondence with the first side and the second side of the system (1) . 6. System (1) according to any one of the preceding claims, characterized in that it is also equipped with an adjustment device with bubble (16) and handwheel (17) suitable for verifying and realizing, by means of lateral lifting / lowering movements, the flatness and parallel position of the system (1) with respect to the downstream digital press. System (1) according to any one of the preceding claims, comprising at least one centering and spreading roller (18) equipped with a plurality of longitudinal staves (20) interrupted in a central point (22) and suitable for centering and widening the fabric , characterized in that it also comprises means (24) to help center the fabric with respect to the central point (22). 8. System (1) according to claim 7, characterized by the fact that said means (24) for assisting the centering of the fabric consist of at least one bar (26) suitable for connecting a movement system (28) of the centering and spreading roller (18) with a driven system (30), said bar (26) being equipped with at least one reference mark (32, 33) able to move with respect to the central point (22) in case of incorrect handling of said movement system (28). System (1) according to any one of the preceding claims, characterized in that it is also equipped with at least one dancer roller (32, 33) for synchronizing the speed of the fabric, said dancer roller (32, 33) being operatively coupled to at least a counterweight (34) adapted to reduce the weight, and therefore the thrust, of the dancer roller (32, 33) on the fabric (3), said counterweight (34) being able to be operatively engaged, only by thrust, by at least one piston (36) with spring return (38) if it is necessary to modify the thrust of said counterweight (34) on said dancer roller (32, 33). System (1) according to claim 1, characterized in that it is further equipped with a plurality of load cells suitable for maintaining the longitudinal tension of the fabric (3). CLAIMS 1. System (1) for introducing tissue (3) into digital printing machines, characterized in that it is equipped with: - means (5, 7, 9) for quickly moving the system (1); and means (11, 13, 15) adapted to simultaneously allow: • aligning the system (1) with an entry of the downstream digital printing machine; • possibly moving the system (1) rightwards or leftwards with respect to the entry of the downstream digital printing machine; and • blocking the system (1) preventing its rotation with respect to the entry of the downstream digital printing machine. 2. System (1) according to claim 1, characterised in that said means (5, 7, 9) for quickly moving are composed of at least two wheels (5) placed on a first side of the system (1) and/or at least two feet (7) placed on a second side of the system (1) opposite to the first side and/or a device (9) of the type with screw (9') and handle {9'') adapted to lift/lower the system (1) with respect to the ground. 2. System (1) according to claim 1, characterized in that said means (5, 7, 9) for quickly moving are composed of at least two wheels (5) placed on a first side of the system (1) and / or at least two feet (7) placed on a second side of the system (1) opposite to the first side and / or a device (9) of the type with screw (9 ') and handle {9' ') adapted to lift / lower the system (1) with respect to the ground. 3. System (1) according to claim 1, characterised in that said means (11, 13, 15) are composed of: at least one bar (11), preferably elongated, that extends longitudinally and parallel to the longitudinal axis of the system (1) and is placed in a fixed and unmovable position on the ground upstream of the digital printing machine; at least one abutment element (13) placed on one side of the system (1) and adapted to get in contact with the bar (11) when operatively installing the system (1); and at least one fastening element (15) placed on the same side of the system (1) on which the at least one abutment element (13) is placed, said fastening element (15) being adapted to be fastened to the bar (11) after that the corresponding abutment element (13) has been placed in contact with the bar (11), in order to fasten the system (1) to the bar (11) in a way that is unmovable, aligned and possibly rightwards or leftwards displaced with respect to the entry of the downstream digital printing machine. 3. System (1) according to claim 1, characterized in that said means (11, 13, 15) are composed of: at least one bar (11), preferably elongated, that extends longitudinally and parallel to the longitudinal axis of the system (1) and is placed in a fixed and unmovable position on the ground upstream of the digital printing machine; at least one abutment element (13) placed on one side of the system (1) and adapted to get in contact with the bar (11) when operatively installing the system (1); and at least one fastening element (15) placed on the same side of the system (1) on which the at least one abutment element (13) is placed, said fastening element (15) being adapted to be fastened to the bar (11 ) after that the corresponding abutment element (13) has been placed in contact with the bar (11), in order to fasten the system (1) to the bar (11) in a way that is unmovable, aligned and possibly rightwards or leftwards displaced with respect to the entry of the downstream digital printing machine. 4. System (1) according to claim 3, characterised in that said abutment element (13) is composed of at least one plate and said fastening element (15) is composed of a hook adapted to be completely fastened around said bar (11). 4. System (1) according to claim 3, characterized in that said abutment element (13) is composed of at least one plate and said fastening element (15) is composed of a hook adapted to be completely fastened around said bar (11) . 5. System (1) according to claim 3 or 4, characterised in that said abutment elements (13) and said fastening elements (15) are two, placed next to the first side and the second side of the system (1). 5. System (1) according to claim 3 or 4, characterized in that said abutment elements (13) and said fastening elements (15) are two, placed next to the first side and the second side of the system (1). 6. System (1) according to any one of the previous claims, characterised in that it is further equipped with an adjusting device with bubble (16) and flywheel (IV) adapted to check and obtain, through side lifting/lowering movements, the planarity and the parallel position of the system (1) with respect to the downstream digital printing machine. 6. System (1) according to any one of the previous claims, characterized in that it is further equipped with an adjusting device with bubble (16) and flywheel (IV) adapted to check and obtain, through side lifting / lowering movements, the planarity and the parallel position of the system (1) with respect to the downstream digital printing machine. 7. System (1) according to any one of the previous claims, comprising at least one tissue-centring and enlarging roller (18) equipped with a plurality of longitudinal staves (20) interrupted in a central point (22) and adapted to centre and enlarge the tissue, characterised in that it further comprises means (24) for helping to centre the tissue with respect to the central point (22). 7. System (1) according to any one of the previous claims, comprising at least one tissue-centring and enlarging roller (18) equipped with a plurality of longitudinal staves (20) interrupted in a central point (22) and adapted to center and enlarge the tissue, characterized in that it further comprises means (24) for helping to center the tissue with respect to the central point (22). 8. System (1) according to claim 7, characterised in that said means (24) for helping to centre the tissue are composed of at least one bar (26) adapted to connect a driving system (28) of the centring and enlarging roller (18) to a driven system (30), said bar (26) being equipped with at least one reference sign (32, 33) adapted to be moved with respect to the central point (22) in case of incorrect movement of said driving system (28) . 8. System (1) according to claim 7, characterized in that said means (24) for helping to center the tissue are composed of at least one bar (26) adapted to connect a driving system (28) of the centring and enlarging roller (18) to a driven system (30), said bar (26) being equipped with at least one reference sign (32, 33) adapted to be moved with respect to the central point (22) in case of incorrect movement of said driving system (28). 9. System (1) according to any one of the previous claims, characterised in that it is further equipped with a dancing roller (32, 33) for synchronising the tissue speed, said dancing roller (32, 33) being operatively coupled with at least one counterweight (34) adapted to reduce the weight, and therefore the thrust, of the dancing roller (32, 33) onto the tissue (3), said counterweight (34) being adapted to be operatively engaged, only for thrust, by at least one piston (36) with spring (38) return if it is necessary to modify the thrust of said counterweight (34) onto said dancing roller (32, 33) . 9. System (1) according to any one of the previous claims, characterized in that it is further equipped with a dancing roller (32, 33) for synchronizing the tissue speed, said dancing roller (32, 33) being operatively coupled with at least one counterweight (34) adapted to reduce the weight, and therefore the thrust, of the dancing roller (32, 33) onto the tissue (3), said counterweight (34) being adapted to be operatively engaged, only for thrust, by at least one piston (36) with spring (38) return if it is necessary to modify the thrust of said counterweight (34) onto said dancing roller (32, 33). 10. System (1) according to claim 1, characterised in that it is further equipped with a plurality of load cells adapted to keep the longitudinal tension of the tissue (3).10. System (1) according to claim 1, characterized in that it is further equipped with a plurality of load cells adapted to keep the longitudinal tension of the tissue (3).
IT000315A 2012-04-11 2012-04-11 SYSTEM FOR FABRIC INTRODUCTION IN DIGITAL PRINTING MACHINES ITTO20120315A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2250089A (en) * 1939-08-30 1941-07-22 United Merchants & Mfg Textile printing apparatus
US20040017456A1 (en) * 2000-09-15 2004-01-29 Franz Obertegger Ink jet printing device
US6698879B1 (en) * 1998-03-19 2004-03-02 Color Wings B.V. Printing textile using an inkjet printer
WO2004072360A2 (en) * 2003-02-11 2004-08-26 F.Lli Robustelli S.R.L. Continuous ink jet fabric printing apparatus
EP1541737A1 (en) * 2003-12-11 2005-06-15 Corino Macchine S.r.l. Device for enlarging and straightening fabrics
US20100077554A1 (en) * 2008-10-01 2010-04-01 Miyakoshi Printing Machinery Co., Ltd. Textile printing method and apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2250089A (en) * 1939-08-30 1941-07-22 United Merchants & Mfg Textile printing apparatus
US6698879B1 (en) * 1998-03-19 2004-03-02 Color Wings B.V. Printing textile using an inkjet printer
US20040017456A1 (en) * 2000-09-15 2004-01-29 Franz Obertegger Ink jet printing device
WO2004072360A2 (en) * 2003-02-11 2004-08-26 F.Lli Robustelli S.R.L. Continuous ink jet fabric printing apparatus
EP1541737A1 (en) * 2003-12-11 2005-06-15 Corino Macchine S.r.l. Device for enlarging and straightening fabrics
US20100077554A1 (en) * 2008-10-01 2010-04-01 Miyakoshi Printing Machinery Co., Ltd. Textile printing method and apparatus

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