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WO2007063565A1 - Machine de sublimation - Google Patents

Machine de sublimation Download PDF

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Publication number
WO2007063565A1
WO2007063565A1 PCT/IT2006/000263 IT2006000263W WO2007063565A1 WO 2007063565 A1 WO2007063565 A1 WO 2007063565A1 IT 2006000263 W IT2006000263 W IT 2006000263W WO 2007063565 A1 WO2007063565 A1 WO 2007063565A1
Authority
WO
WIPO (PCT)
Prior art keywords
sublimation
section
machine
station
loading
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.)
Ceased
Application number
PCT/IT2006/000263
Other languages
English (en)
Inventor
Romano Zambetti
Francesco Cannata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zr Di Zambetti Romano
Original Assignee
Zr Di Zambetti Romano
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zr Di Zambetti Romano filed Critical Zr Di Zambetti Romano
Publication of WO2007063565A1 publication Critical patent/WO2007063565A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
    • B41M5/035—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet by sublimation or volatilisation of pre-printed design, e.g. sublistatic
    • B41M5/0358—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet by sublimation or volatilisation of pre-printed design, e.g. sublistatic characterised by the mechanisms or artifacts to obtain the transfer, e.g. the heating means, the pressure means or the transport means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/382—Contact thermal transfer or sublimation processes
    • B41M5/38207—Contact thermal transfer or sublimation processes characterised by aspects not provided for in groups B41M5/385 - B41M5/395
    • B41M5/38221—Apparatus features

Definitions

  • the aim of the present invention is a sublimation machine.
  • the sublimation machines subject of the present invention are suitable for being employed in order to sublimate bars or, more generally, metal sections, preferably made of aluminium or iron.
  • sublimation one refers to low-pressure deposition, generally under vacuum, on a metal section of any drawing (for example the wood or marble grains) printed with inks on a thin film. More particularly, the drawing is transferred to a paint layer opportunely associated with the outer surface of the section itself, under specific temperature conditions which, for example in case of aluminium sections correspond at about 180-190 0 C.
  • a metal section is sublimated for decorative and functional purposes in order to be employed, for -example, in the furnishing field, " especially outdoor or in places with a high humidity.
  • Machines for the sublimation of metal sections mainly consisting of a generally gas- or electric oven are known, wherein the sections, enter, remain there (for an average time of 3-5 minutes) and exit.
  • the sections are arranged on carriages which can be both hand-moved and automated. In particular, on each carriage many sections are loaded, generally at least 15.
  • the sections Downstream of the oven, the sections are enveloped, namely they are wound in- a thin film on which the drawing to be transferred on the sections themselves is printed.
  • the sections are connected to connectors, preferably associated with the carriage which accompany them in the oven, such that between the film and the ' section a vacuum is generated, generally both before entering the oven and during the residence, for a greater qualitative yield of the process.
  • connectors preferably associated with the carriage which accompany them in the oven, such that between the film and the ' section a vacuum is generated, generally both before entering the oven and during the residence, for a greater qualitative yield of the process.
  • an air jet between the film and the section is activated, for allowing the extraction of the same from the film.
  • a further drawback is that, as the internal chamber of the oven is of remarkable dimensions, it is difficult to maintain a uniform temperature, with problems on the quality of the finished product.
  • the aim of the present invention is to overcome the drawbacks above mentioned.
  • the aim of the present invention is to propose a sublimation machine which has limited hindrances and a rational lay-out so as to render easy and fast its use and to optimize the upstream and downstream interconnections with the other productive stations of the plant. Still an object of the invention is to show a sublimation machine which has lim- ited operating costs, above all at the oven level, and therefore has a low loss of heat and limited consumptions. A further aim is a sublimation machine which allows to obtain finished products with a high qualitative level and does not need a high presence of personnel. Finally, the aim of the present invention is to provide a sublimation machine which is easy ' to carry out and with a limited cost.
  • FIG. 1 shows an axonometric top view of a sublimation plant including a sublimation machine according to the invention
  • figure 2 shows an axonometric top view of the sublimation machine of figure 1;
  • figure 3 shows a first enlarged particular of the sublimation machine of figure 2;
  • figure 4 shows a second enlarged ⁇ particular of the sublimation machine of figure 2;
  • figure 5 shows a front view of the sublimation ma- chine of figure 2;
  • figure 6 shows a top view of the sublimation machine of figure 2;
  • FIG. 7 shows an axonometric top view of a sublimation machine according to the invention in a second embodiment .
  • a sublimation machine 1 includes a frame 11, means 4 for loading at least a metal section 3 to be sublimated, operating at least between a loading station 5, a sublimation station 6 and an unloading ' station 7, associated with the frame 11, and sublimation means 16 operating on the metal section 3 and cooperating with the loading means 4 in the sublimation station 6 for sublimating the section 3.
  • Such machine »1 is characterized in that at least a part of the sublimation means 16 is movable between at least an inactive position and at least an active position, wherein such means are suitable for sublimating at least a portion of the section 3 in the sublimation station 6.
  • the sections 3 are generally elongated elements, preferably bars.
  • the sublimation means 16 can be movable between the inactive position and a plurality of active positions so as to sublimate the section 3 during the relative movement of the sublimation means 16 and the section 3.
  • the sublimation means 16 slide along the section 3 and, in particular, the relative movement of such means 16 and the section 3 takes place in a direction substantially parallel to the main axis of the section 3 itself.
  • the machine 1 further includes means 20 for displacing the sublimation means 16 along a direction substantially parallel to the main axis of the section 3 just during its sublimation and, preferably, during such displacement the section 3 remains steady relative to the frame 11.
  • This kind of sublimation is defined as a direct transfer, since the oven 17 moves with respect to the section 3 (which, as anticipated, can be in turn steady or moving) .
  • the sublimation means 16 include an oven 17 movable between at least an inactive position and at least an active position and equipped with radiating elements.
  • Such elements can include lamps so as to heat the section . 3 by irradiation.
  • the sublimation means 16 are instantaneously operating only on a longitudinal portion of the section 3, lower than its length.
  • the oven 17, in fact, once the section 3 is brought by the loading means 4 in the sublimation station 6, is displaced from an inactive position to an active position, wherein it contacts a first longitudinal portion of the section 3 and, when this portion has reached such a temperature to allow the sublimation, it starts to slide along the section 3 para- llelly to its main axis, until the sublimation of the entire section 3 has been completed. At this point, the oven 17 is displaced to an inactive position until another section 3 is ready.
  • the sublimation means 16 include a detecting element for detecting the temperature in correspondence with the longitudinal portion of the section 3 that the oven 17 is instantaneously sublimating. Such element is operating on the displacement means 20 so as to move the oven 17 when- such longitudinal portion has reached the predetermined ' sublimation temperature.
  • the oven 17 has a chamber 18 suitable for sublimating a longitudinal portion of the section 3 at a time, having at least two inlet openings 19 and in- sulating elements for reducing the loss of heat (figure 3) .
  • the radiating elements are associated with the chamber 18.
  • the oven 17 can also have a modular conformation, such that it can be extended for particular productive requirements .
  • the loading means 4 include at least an abutting element 8 suitable for housing at least a section 3, movable between the loading, sublimation and unloading stations 5, 6, 7. It should be specified that the abutting elements 8 are suitable for housing one or more sections 3, depending on the productive requirements.
  • the loading means 4 include a carousel 9, associated with the frame 11, ⁇ movable between the three stations 5, 6, 7 to which the abutting elements 8 are associated.
  • each abutting elements 8 is represented by a bar on which at least a section 3 is abutted, or, as it can be seen in figure 4, by a couple of expansions on which the end portions 3a of at least a section 3 are abutted.
  • the abutting elements 8 could also have other conformations and, for example, include some hooks utilizable if during the sublimation the sections 3 are arranged with the main axis perpen- dicular to the floor instead of parallel, as in the embodiment shown.
  • the carousel 9 includes at least three abutting elements 8 so as to simultaneously serve the three stations 5, 6, 7.
  • the stepping time of the carousel 9 is defined from the sublimation time of the section 3, namely the carousel 9 is advanced between two following stations when in the sublimation station 6 the sublimation means 16 have finished the sublimation of the section 3.
  • the carousel 9 includes at least two abutting elements 8 movable between the two stations.
  • all the three stations 5, 6, 7 could also correspond: in this case, there will be a single fixed abutting element 8.
  • the machine 1 further includes suction means associable with loading means 4, suitable for ensuring the adhesion between the section 3 and the sheet which has the print of the drawing to be transferred on the section 3 itself and detaching such sheet from the section 3 after the sub- limation.
  • Such sheet is wound around the section 3 in an envelopment station 14 arranged in the productive process upstream of the machine 1 subject of the invention.
  • the adhesion between the sheet and the section 3 is carried out at least during the sublimation but, preferably, both in the loading station 5 and in the sublimation one. Furthermore, in the loading station 5 at least an operator is advantageously present, with the task of manually reducing possible wrinkles which are created between the sheet and the section 3, in order to increase the qualitative yield of the finished product .
  • the suction means then include vacuum-generating means (not shown) operating on the section 3, preferably in the loading and sublimation stations 5, 6, for creating the mentioned adhesion between the sheet and the section 3, and blowing means (also not shown) operating on the section 3 in the unloading station 7, for detaching the sheet from the section 3 with an air jet in order to allow the extraction of the section 3 itself.
  • the vacuum-generating means include a pump.
  • the blowing means preferably include a motor and a compressor for withdrawing air from the environment and introducing it under pressure between the sheet and the section 3, in order to allow its separation and therefore the extraction of the section 3.
  • the sublimation machine 1 can also include only the vacuum-generating means or only the blowing j neans .
  • the suction means further include selection means 12 operably interconnected between the vacuum-generating means, the blowing means and the abutting elements 8 for selectively activating the vacuum means or the blowing means on each abutting element 8 and, therefore, on the sections 3 with respect to the station in which such abutting element 8 is found.
  • selection means 12 include a selection joint (not shown) operably connected with the vacuum-generating means and' the blowing means, having at least two outlets and a plurality of connecting ends 13, advantageously including solenoid valves, each operably joinable with such joint outlets and to each abutting element 8 (figure 4).
  • the joint and the ends 13 co-operate such that the abutting elements existing in the loading and sublimation station 5 are operably associated with the vacuum- generating means, while the abutting element existing in the unloading station 7 is operably associated with the blowing means .
  • both the vacuum-generating means and the blowing means are deactivated for a consumption saving but above all because the high force imparted by the ends 13 for creating the vacuum would render very difficult, if not impossible, the displacement of the carousel 9.
  • the sheet equipped with the drawing to be transferred on the section 3 is wound around the section 3 so as to show both the ends, placed in correspondence with the end portions of the section 3 itself, in an open position.
  • the vacuum but also the blowing must take place in correspondence with both the end portions 3a « of the section 3 itself.
  • a terminal 13 is preferably associated at each end of an abutting element 8.
  • the shown carousel 9 has a central bar 10 having, besides the supporting function, the transport ' function of the connection cables to the suction means at both the ends 13 associated with the abutting element 8.
  • the carousel 9 includes four abutting elements 8, substantially placed at a mutual distance of 180°, each consisting of a couple of expansions suitable for housing the end portions 10 of a section 3, such that it is substantially parallel to the floor on which the frame 11 of the machine 1 is abutted.
  • Such carousel 9 is therefore movable between four stations: a loading station 5 on the right, a sublimation station 6 in the upper part, an unloading station 7 on the left and a rest station 24 in the lower part, in which on the abutting element 8 no section 3 is housed.
  • two ends 13 are associated, each being operating on an end portion 3a of the section 3.
  • Such ends 13, through the selection joint, are operably connected with the suction means for activating the vacuum-generating means and deactivating the blowing ' means in the loading and sublimation stations 5, 6, for activating the blowing means and deactivating the vacuum-generating means in the unloading station 7 and for deactivating both the means in the rest station 24.
  • the abutting elements 8 are supported and pivotally displaced through a central bar 10 connected to the frame 11 which transports connection cables which allow to both the ends 13 to be connected with the abutting elements 8.
  • the ends 13 are suitable for activating the vacuum-generating means or the blowing means for a predetermined time, in which the carousel 9 always remains in the same position depending on the operation which is carried out on the section 3.
  • the suction means could only include a selection joint or only ends 13 associated with the different abutting elements 8 always suitable for selectively deactivating the vacuum-generating means and blowing means with respect to the station on which the section 3 is found or the processing which is carried out on the section 3 itself.
  • the machine 1 further includes means 15 for transporting the section 3 from the envelopment station 14, in which to the section 3 the sheet having the drawing to be transferred on the section 3 itself is wound, to the loading means 4, associated with the frame 11.
  • the transport means 15 include a conveyor belt 23 which transports the section 3 close to the loading station 5 where it is positioned, pref- erably by operators, on the abutting element 8 which is located in said station 5.
  • the unloading station 7 there is a container 22 for the sublimated sections 3. Therefore, close to the unloading station 7, means 21 for withdrawing the sections 3 from the unloading station and carry them to the container 22 are arranged.
  • such means 21 are depicted by a fixed structure 25 having at least a portion 25a arranged along the displacement path of the carousel 9, so as to intercept the section 3 in correspondence with the unloading station 7 and transporting it by gravity to the container 22.
  • such means 21 can include at least a second conveyor belt.
  • the machine 1 further includes adjustment and control means operating on the loading means 4, transport means 15, displacement means 20, sublimation means 16 and suction means in order to control the functioning thereof.
  • the sublimation means 16 are suitable for being moved between at least an inactive position and at least an active position according to a direction substantially perpendicular to the main axis of the section 3.
  • the sublimation means 16 include an oven 17, preferably suitable for bringing the sections 3 to the sublimation temperature, always by irradiation, extending at least along the entire length of the sections 3 themselves and therefore having a chamber 18 which can be both closed and open at the ends, suitable for housing all the section 3 during the sublimation.
  • the oven 17 moves perpendicularly relative to the axis of the section 3 for reaching the active position and approaching to the section 3 itself.
  • the oven 17 can sublimate the section 3 only when it has reached the active position or also during the movement from the inactive position to the active one or, next, from the active to the inactive position.
  • the second embodiment of the invention can have all the elements shown with regard to the first embodiment.
  • the machine 1 can include means for moving the section 3 along a direction substantially parallel to its main axis during the sublimation, while the sublimation means 16 remain steady relative to the frame 11.
  • a sublimation plant 2 is also included, comprising at least a sublimation machine 1 above described (figure 1) .
  • the machine 1 subject of the invention can be doubled for greater productive needs or for simultaneously sublimating sections 3 with different patterns.
  • the invention thus conceived is susceptible of various modifications and variants, all lying within the ambit of the inventive concept .
  • the used materials as well as the dimensions could be any one, depending on the requirements. Furthermore, all the details are replaceable by other technically equivalent elements .
  • the invention attains important advantages. Firstly, the sublimation machine subject of the present invention reduces the space need with respect to a traditional machine and improves the logistic management of the plant lay-out. In fact, it eliminates the need of using carriages for transporting the sections from the envelopment zone to the oven and from the oven to the warehouse of the finished products. Furthermore, the oven has a largely lower dimension than those traditional, as it sublimates a limited number of sections at a time and, in the first embodiment, it slides on the sections themselves. The " modification of the kind of oven has brought remarkable advantages also in the consumptions and therefore also in the production costs.
  • a further advantage is given in that the sublimation machine shown allows significant productive rates and a high quality at the product level, due for example to the possibility of maintaining a constant and even temperature on the portion which is sublimated and by the presence of the carousel, which allows the operator to position the sheet on the section in an optimal way, as he works with a very reduced number of sections at a time.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

L'invention concerne une machine de sublimation (1) qui comprend un bâti (11), un moyen (4) de chargement au moins un tronçon métallique (3) à sublimer d'associé au bâti (11), et au moins entre un poste de chargement (5), un poste de sublimation (6) et un poste de déchargement (7), et un moyen de sublimation (16) opérant sur le tronçon (3) et coopérant avec le moyen de chargement (4) dans le poste de sublimation (6) pour sublimer le tronçon (3), caractérisée en ce qu'au moins une partie du moyen de sublimation (16) peut être déplacée entre au moins une position inactive et au moins une position active à laquelle il est possible de sublimer au moins une partie du tronçon (3) dans le poste de sublimation (6). Le moyen de sublimation (16) peut être déplacé au moins entre les deux positions dans une direction sensiblement perpendiculaire à l'axe principal du tronçon (3) ou dans une direction sensiblement parallèle à cet axe.
PCT/IT2006/000263 2005-12-01 2006-04-20 Machine de sublimation Ceased WO2007063565A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBS2005A000150 2005-12-01
ITBS20050150 ITBS20050150A1 (it) 2005-12-01 2005-12-01 Macchina per la sublimazione

Publications (1)

Publication Number Publication Date
WO2007063565A1 true WO2007063565A1 (fr) 2007-06-07

Family

ID=36763971

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2006/000263 Ceased WO2007063565A1 (fr) 2005-12-01 2006-04-20 Machine de sublimation

Country Status (2)

Country Link
IT (1) ITBS20050150A1 (fr)
WO (1) WO2007063565A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20102321A1 (it) * 2010-12-20 2011-03-21 Prometeo Srl Apparato per decorare profilati metallici mediante sublimazione

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4662966A (en) * 1984-09-26 1987-05-05 Nissha Printing Co. Ltd. Apparatus for transfer printing
WO1996029208A1 (fr) * 1995-03-22 1996-09-26 Verniciatura Industriale Veneta S.P.A. Procede de fabrication d'elements profiles, extrudes, decores
EP0810102A1 (fr) * 1996-05-31 1997-12-03 "Proteco" Christos Sklavenitis & CIA EPE Procédé pour imprimer sur barres en aluminium utilisant des encres sublimables
WO1998008694A1 (fr) * 1996-08-28 1998-03-05 Verniciatura Industriale Veneta S.P.A. Procede permettant de decorer des profiles de metal, de matiere plastique et profiles similaires, et appareil associe
US6186207B1 (en) * 1988-09-06 2001-02-13 Donald C. Berghauser Press for transferring video prints to ceramic mugs and other surfaces

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4662966A (en) * 1984-09-26 1987-05-05 Nissha Printing Co. Ltd. Apparatus for transfer printing
US6186207B1 (en) * 1988-09-06 2001-02-13 Donald C. Berghauser Press for transferring video prints to ceramic mugs and other surfaces
WO1996029208A1 (fr) * 1995-03-22 1996-09-26 Verniciatura Industriale Veneta S.P.A. Procede de fabrication d'elements profiles, extrudes, decores
EP0810102A1 (fr) * 1996-05-31 1997-12-03 "Proteco" Christos Sklavenitis & CIA EPE Procédé pour imprimer sur barres en aluminium utilisant des encres sublimables
WO1998008694A1 (fr) * 1996-08-28 1998-03-05 Verniciatura Industriale Veneta S.P.A. Procede permettant de decorer des profiles de metal, de matiere plastique et profiles similaires, et appareil associe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20102321A1 (it) * 2010-12-20 2011-03-21 Prometeo Srl Apparato per decorare profilati metallici mediante sublimazione

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Publication number Publication date
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