EP0791402A1 - Installation de revêtement d'un substrat laminaire avec un couche de résine - Google Patents

Installation de revêtement d'un substrat laminaire avec un couche de résine Download PDF

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Publication number
EP0791402A1
EP0791402A1 EP97102835A EP97102835A EP0791402A1 EP 0791402 A1 EP0791402 A1 EP 0791402A1 EP 97102835 A EP97102835 A EP 97102835A EP 97102835 A EP97102835 A EP 97102835A EP 0791402 A1 EP0791402 A1 EP 0791402A1
Authority
EP
European Patent Office
Prior art keywords
duct
laminar substrate
resin
conveyor
holes
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.)
Granted
Application number
EP97102835A
Other languages
German (de)
English (en)
Other versions
EP0791402B1 (fr
Inventor
Giovanni Vincenzi
Pierangelo Semeraro
Ivo Tozzi
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.)
Demak SRL
Original Assignee
Demak Sas Di Gastaldi Geom Enzo & C
Demak S A S Di Gastaldi Geom E
Demak Sas Di Gastaldi Geom Enzo & C
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 Demak Sas Di Gastaldi Geom Enzo & C, Demak S A S Di Gastaldi Geom E, Demak Sas Di Gastaldi Geom Enzo & C filed Critical Demak Sas Di Gastaldi Geom Enzo & C
Publication of EP0791402A1 publication Critical patent/EP0791402A1/fr
Application granted granted Critical
Publication of EP0791402B1 publication Critical patent/EP0791402B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C13/00—Means for manipulating or holding work, e.g. for separate articles

Definitions

  • the present invention relates to a system for coating at least one laminar substrate with a layer of resin, comprising:
  • the system usually also comprises an irradiation station which brings about cross-linking of the resin applied and is disposed along the conveyor, downstream of the application station.
  • the at least one table has an internal cavity which communicates with the bearing surface through a plurality of holes, and in that the system comprises vacuum-generating means and means for selectively connecting the vacuum-generating means to the internal cavity of the table so as to cause the laminar substrate selectively to adhere to the bearing surface of the table.
  • the system of the invention thus has advantages in terms of a reduction in the usage of labour and in the risk of damage due to the manipulation of the laminar substrates.
  • a honeycomb structure 36 disposed in the cavity 32 comprises a plurality of cells which are in communication with one another through holes 38 formed in their side walls.
  • a rotary vacuum distributor 40 located ( Figures 1 and 4) in the centre of the loop defined by the conveyor 12 has a disc 42, fixed to the central portion of the lower face of which is a tubular appendage 44, rotatably mounted in a sleeve 46 fixed to a support structure 48.
  • the lower end of the tubular appendage 44 is connected by means of a connector 50 and a pipe 52 to vacuum-generating means of known type, for example, a suction pump 54, while the upper end of the tubular appendage 44 communicates with a plurality of ducts 56 which extend radially towards the periphery of the disc 42.
  • an operator 68 places a plurality of labels 10 on the upper bearing surface 28 of the table 20 which stops in front of him at the time in question as a result of the stoppage of the conveyor 12.
  • the obturator 66 of the valve 60 of this table 20 is in the open position ( Figure 3) so that the suction pump 54, the pipe 52, the connector 50, the tubular appendage 44 of the disc 42, the duct 56 and the flexible pipe 58 associated with this table 20, as well as the duct 34 and the internal cavity 32 thereof, are all in free communication.
  • the suction effect exerted by the pump 54 is thus exerted through the holes 26 in the bearing surface of the table 20 with the consequence that, as soon as the labels 10 are laid on the table, they remain adhering thereto.
  • the operator 68 advances the conveyor 12 until the table 20 is at the station 14 where the labels 10 are coated with resin, and subsequently at the stations 16, 18 where the resin is cross-linked by irradiation.
  • the labels 10 remain adhering to the bearing surface 28 of the table 20 by virtue of the suction effect which is generated by the pump 54 and continues to be exerted.
  • the rotary mounting of the disc 42 of the distributor 40 in fact enables both the disc 42 and the flexible pipe 58 to follow the movement of the table 20 without the connection being lost between the suction pump 54 and the internal cavity 32 and the holes 26 in the table 20. Otherwise, the resin-application and cross-linking stages are substantially similar to those which take place in conventional systems.
  • the operator stops the conveyor 12 and causes the obturator 66 of the valve 60 to move to the shut-off position, shutting off communication between the suction pump 54 and the holes 26 in the table 20.
  • the coated labels 10 can thus be removed from the table 20 without encountering any resistance since no suction effect is exerted in the cavity 32 which is downstream of the valve 60.
  • the table 20 will now be in the starting condition again, so that a new working cycle similar to that just described can start.
  • the task of the operator 68 is thus greatly facilitated since it is limited essentially to the laying of the labels 10 to be coated on the tables 20 and the unloading of the coated labels, whilst the fixing of the labels 10 to the tables 20 and their subsequent release are achieved by a simple operation of the obturator 66 of the valve 60.
  • the productivity of the operator 68 is thus increased and the risks of damage to the labels 10 due to manipulation thereof in order to fix them to the tables 20 is reduced.

Landscapes

  • Coating Apparatus (AREA)
  • Replacement Of Web Rolls (AREA)
  • Collation Of Sheets And Webs (AREA)
EP97102835A 1996-02-23 1997-02-21 Installation de revêtement d'un substrat laminaire avec une couche de résine Expired - Lifetime EP0791402B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96TO000121A IT1285256B1 (it) 1996-02-23 1996-02-23 Impianto per rivestire con uno strato di resina substrati laminari
ITTO960121 1996-02-23

Publications (2)

Publication Number Publication Date
EP0791402A1 true EP0791402A1 (fr) 1997-08-27
EP0791402B1 EP0791402B1 (fr) 2001-10-24

Family

ID=11414289

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97102835A Expired - Lifetime EP0791402B1 (fr) 1996-02-23 1997-02-21 Installation de revêtement d'un substrat laminaire avec une couche de résine

Country Status (3)

Country Link
EP (1) EP0791402B1 (fr)
DE (1) DE69707524T2 (fr)
IT (1) IT1285256B1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3558093A (en) * 1969-07-29 1971-01-26 Epec Systems Corp Vacuum memory holding device
DE3316421A1 (de) * 1982-05-07 1983-11-17 The Gerber Scientific Instrument Co., 06074 South Windsor, Conn. Vakuumhalteeinrichtung
US4759310A (en) * 1986-05-19 1988-07-26 M/A-Com Government Systems, Inc. Automated system for reconditioning electrical terminals

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3558093A (en) * 1969-07-29 1971-01-26 Epec Systems Corp Vacuum memory holding device
DE3316421A1 (de) * 1982-05-07 1983-11-17 The Gerber Scientific Instrument Co., 06074 South Windsor, Conn. Vakuumhalteeinrichtung
US4759310A (en) * 1986-05-19 1988-07-26 M/A-Com Government Systems, Inc. Automated system for reconditioning electrical terminals

Also Published As

Publication number Publication date
EP0791402B1 (fr) 2001-10-24
DE69707524T2 (de) 2002-05-02
IT1285256B1 (it) 1998-06-03
ITTO960121A1 (it) 1997-08-23
ITTO960121A0 (fr) 1996-02-23
DE69707524D1 (de) 2001-11-29

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