EP3315210A1 - Beschichtungskopf, der an den umriss eines plattenrandes oder anderer zu beschichtender teile angepasst werden kann - Google Patents

Beschichtungskopf, der an den umriss eines plattenrandes oder anderer zu beschichtender teile angepasst werden kann Download PDF

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Publication number
EP3315210A1
EP3315210A1 EP17197342.3A EP17197342A EP3315210A1 EP 3315210 A1 EP3315210 A1 EP 3315210A1 EP 17197342 A EP17197342 A EP 17197342A EP 3315210 A1 EP3315210 A1 EP 3315210A1
Authority
EP
European Patent Office
Prior art keywords
coating
recess
slits
forms
panel
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.)
Withdrawn
Application number
EP17197342.3A
Other languages
English (en)
French (fr)
Inventor
Gianfranco Beligotti
Roberto Ezio Fabio Petrucci
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.)
Sorbini Srl
Original Assignee
Sorbini Srl
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 Sorbini Srl filed Critical Sorbini Srl
Publication of EP3315210A1 publication Critical patent/EP3315210A1/de
Withdrawn legal-status Critical Current

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    • 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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • 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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0204—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to the edges of essentially flat articles
    • 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
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
    • 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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B05C5/0262—Coating heads with slot-shaped outlet adjustable in width, i.e. having lips movable relative to each other in order to modify the slot width, e.g. to close it

Definitions

  • the present invention relates to the technical field of machines for coating panels made of sundry materials (wood, glass, fibrocement, etc.) through the technology of coating with the aid of suction, as will better explained in the following.
  • the present invention relates to a coating head, a so-called vacuum coating head.
  • coating machines of this kind comprising a head provided with a chamber supplied with a coating product to be used for coating the panel.
  • Documents of the known art are e.g. US 5,976,249 of JOSEF SCHIELE OHG and IT 1.341.136 of Makor.
  • the application IT BO2011A000287 describes a vacuum coating head comprising a recess reproducing with suitable increase the outline of a panel edge crossing said recess.
  • a vacuum coating head comprising a recess reproducing with suitable increase the outline of a panel edge crossing said recess.
  • at least a nozzle to apply a coating product on said edge;
  • suction nozzles controlling the coating step, wherein the two opposed walls of said recess are formed by bodies fixed to an adjacent supporting body, with means allowing to adjust said bodies, to provide a coating head suitable for the treatment of edges of variable thickness.
  • Said bodies are provided with slits frontally closed toward the outside, which overlap and connect with the other front to corresponding slits of said supporting body, with which said supplying and suctioning nozzles are formed.
  • Said bodies are made of plates having a linear side, parallel to the edge to be coated and to its direction of forward movement, with which they can be registered to coat edges having different outlines in dimension and shape.
  • the slits in the recess allow to coat the edge with a constant and continuous layer of coating material, thanks to the continuous forward movement with constant speed of the panel to be coated, through the suctioning action performed by the slits which continuously suction air through the recess of the coating head and along the surface to be coated of panel edge.
  • the viscosity of the coating material, the flow rate of the suctioning, the outline and the dimensions of the recess with relation to the edge outline determine the coating on the edge which, with the longitudinal speed of the forward movement of the panel, determine the thickness of the coating deposed on the edge itself.
  • the suctioning action performed by the slits acts as control dosing of the coating material along the panel edge, ensuring a constant thickness of the coating material according to its viscosity and the constancy over time of the pressure of said coating material, panel forward movement, and distance of the edge from the walls of the recess of coating head.
  • a first drawback of the solution described in IT BO2011A000287 is the set-up time of the coating head: in fact, to set up the machine according to a different outline of the panel edge, a human operator must interpose a layer simulating the coating thickness, and then she/he must manually arrange the plates so that they match as much as possible with the new profile of the panel to be coated.
  • a second drawback is the fact that, with the change of thickness of the panel, the plate pack must be adjusted to the new shape.
  • Aim of the present invention is providing a coating head having a nozzle realized through an assembly of two forms which cooperate to provide an opening having dimensions and shape suitable for the edge to be coated, which can be easily and rapidly replaced with the change of panel edge outline.
  • the coating head according to the present invention comprises:
  • the recess has a corresponding specific shape.
  • the method according to the present invention comprises the following steps:
  • the replacement of the first pair of forms with the second pair of forms makes the set-up of the machine very rapid when the replacement is automatically performed by the machine itself. Nonetheless, it is worth noting that, even in the case the replacement is manually performed by a human operator, the set-up time is reduced, in that all the steps of fine-tuning of the recess outline are moved to the step wherein the forms are produced, preferably obtaining them by removal of material from a block.
  • a first advantage of the present invention consists in the possibility of a high reduction of the downtime of the coating machine connected with the replacement of the recess of the coating head.
  • a second advantage lies in the fact that, with the change of panel thickness, its outline being the same as in the preceding batch, said pair of forms does not need replacement, but the operator has simply to adjust their respective distance to bring the two forms at a distance suitable to the present batch of panels.
  • a third advantage of the present invention is in the possibility of automating the set-up of the coating machine, providing it with different forms having different outlines, and with a system allowing their replacement without human operator.
  • Figure 1 shows in a lateral view a vacuum coating head 1 having a connecting piece 2 between said head and its relative system generating vacuum (not shown); two pipes 3 supplying coating material to said head 1; a body 4 wherein slits 11 are obtained (visible in the following Figures).
  • Figure 1 shows a panel 5 in the position wherein it stands while it is coated.
  • Figure 1 shows an adjusting wheel 6 allowing the adjustment of recess dimensions according to the thickness of the panel to be coated; a top form 7 and a lower form 8.
  • Figure 2 shows said vacuum coating head 1 in a frontal view; therefore, the connecting piece 2 and the pipes 3 are not visible.
  • a handle bar 9 which allows to fix the top form 7, and four knobs 18 for fixing the lower form 8 become visible.
  • the panel 5 is shown in the position in which it stands while it is coated.
  • Figure 3 shows the same components as in Figure 2 , but said panel 5 was removed for better clarity.
  • This Figure shows said slits 11 obtained in said head body 4, from which the coating material pours out; said coating material undergoes suction, so that excess coating material is suctioned back through the connecting piece 2.
  • Figure 2 shows a plurality of linear and transversal slits 11, preferably oblique with respect to the direction of forward movement of the panel, whose edge is to be coated. Said slits are arranged side by side, in the sense of forward movement of the panel and cross the body 4, opening on its back, allowing the passage of the coating material coming from a dedicated (not shown) reservoir.
  • This coating process allows to recover excess coating material, which is recovered and recycled thanks to the action of suction.
  • Figure 4 shows an exploded axonometric view of the coating head 1, wherein the top form 7 and the lower form 7 are removed from their working position.
  • the handle bar 9 is rotated so that the top form 7 can be removed, while from screws 10 knobs 18 were removed, which keep the lower form 8 in place during the coating process.
  • the lower form 8 is kept integral with said body 4 of coating head 1 through a pair of eyelets 19, each of which is assembled with a pair of screws 10.
  • the knobs 18, screwed on screws 10 allow the fixing of the lower form 8 to coating head body 4.
  • the top form 7 is provided in its turn with a plurality of slits 13, while the lower form 8 is provided in its turn with a plurality of slits 12.
  • Said slits 12 and 13 of the forms are arranged in phase with respect to the slits 11 of body 4, so that coating material can come out and be suctioned. Nonetheless, the top form 7 and lower form 8 can be slid so as to bring them closer together or further apart, and this allows to adjust the overall height of the slits, so that their dimensions is suitable to the thickness of the panel edge to be coated.
  • Figure 5 shows the coating head 1 wherein top form 7 and lower form 8 were removed; the handle bar 9 is in the position allowing their removal.
  • This Figure shows the presence of the driving wheel 6, adjusting the vertical position of the top form 7 through a pair of guides 14 on which a support 15 slides; on said support two bearings 16 are fixed.
  • said bearings 16 are engaged in a slot 17 of the form 7 itself.
  • the rotation of the adjusting wheel 6 turns a threaded rod, which engages in a stationary nut integral with the sliding support 15; therefore said rotation leads, according to the direction of rotation, to a forward or backward translation of said sliding support 15.
  • the embodiment shown in the figures provides for a specific mechanism for adjusting the vertical position of the top form 7, this specific embodiment has not to be interpreted as a limitation of the more general teaching according to which the top form 7 is supported by a displacing mechanism for adjusting the vertical position of the said top form 7 in relation to the position of the lower form 8 for variating the nozzle size and a control organ is provided for driving the said displacing mechanism.
  • top form 7 and said lower form 8 can be brought closer together or further apart, preferably comprising an adjusting wheel 6 which controls a translation mechanism of a support 15, two guides 14 on which said support slides 15 and a pair of bearings 16, allowing a precise adjustments of the nozzle size through a variation of the reciprocal distance of the top and upper forms 7, 8 one from the other by a manual control action through the wheel 6.
  • top forms 7 and lower forms 8 are produced, reproducing its outline.
  • a human operator manually replaces the top form 7 and lower form 8 from coating head 1.
  • the radius of curvature of a panel edge is the same, but the thickness of the panel 5 is different between batches, bringing the top form 7 and the lower form 8 closer together or further apart through adjusting wheel 6 will be sufficient.
  • Figures 6A, 6B, 6C show three lateral views similar to that shown in Figure 1 , wherein the vacuum coating head is used to coat three different panels having different shapes.
  • Panel 5A has an asymmetric bull nose edge
  • panel 5B has a bull nose edge with a tooth
  • panel 5C has a symmetrical bull nose edge.
  • the vacuum coating head 1 is provided with specifically produced forms 7 and 8, which are suitable for each of these shapes; moreover, the forms 7 and 8 can be brought closer together of further apart to adapt them to the thickness of each single panel 5A, 5B, 5C.
  • Top forms 7 and lower forms 8 are produced through machine tool in a productive step completely distinct from coating step, so as to reduce to a minimum the downtime of the coating machine which is necessary for the set-up of said coating machine comprising the vacuum head 1.
  • top forms 7 and lower forms 8 are obtained starting from stainless steel blades through removal of material, even if the use of other materials and technologies is possible, e.g. 3D-printing or plastic moulding of a plastic material having a sufficient hardness.
  • top forms 7 and lower forms 8 are faster and easier with respect to the plate packs described in IT BO2011A000287 .
  • top form 7 and the lower form 8 are obtained not starting from a solid body, but from a plate pack wherein plates are integrally connected to each other so as to form a unique body (i.e., the plates cannot slide on each other as described in IT BO2011A000287 ).
  • the coating machine can be provided with a stock of different top forms 7 and lower forms 8, which are picked up by a robotic arm and placed in the correct position with respect to the body 4 of coating head 1.
  • the handle bar 9, the adjusting wheel 6, and the knobs 18 of screws 10 will be replaced by suitable fixing and adjusting elements well-known to the skilled man.
  • the method of panel recognition through barcodes is used: when a production batch has to be changed, a human operator detects the barcode on the following batch.
  • An informatics system saves all the dimensional characteristics relating to batches, and therefore the control system of the coating machine, wherein the data for each batch were previously saved, can set-up the coating machine arranging the suitable top forms 7 and lower forms 8 at a suitable distance according to the detected barcode and associated to the batch to be produced.
  • top forms 7 and lower forms 8 replacement Through the automation of top forms 7 and lower forms 8 replacement, the manual set-up time, typically lasting some minutes, can be reduced to a set-up time lasting some seconds, obtaining a reduction of set-up time of an order of magnitude. This is especially desirable in the case of batch processing, each of which comprises a small number of pieces, which is the productive reality which most of furniture manufacturers face today.

Landscapes

  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)
EP17197342.3A 2016-10-28 2017-10-19 Beschichtungskopf, der an den umriss eines plattenrandes oder anderer zu beschichtender teile angepasst werden kann Withdrawn EP3315210A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102016000109468A IT201600109468A1 (it) 2016-10-28 2016-10-28 Testa di verniciatura di tipo vacuum, adattabile al profilo del bordo di pannelli o altri manufatti da trattare

Publications (1)

Publication Number Publication Date
EP3315210A1 true EP3315210A1 (de) 2018-05-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17197342.3A Withdrawn EP3315210A1 (de) 2016-10-28 2017-10-19 Beschichtungskopf, der an den umriss eines plattenrandes oder anderer zu beschichtender teile angepasst werden kann

Country Status (3)

Country Link
EP (1) EP3315210A1 (de)
CN (1) CN108014964A (de)
IT (1) IT201600109468A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115007392A (zh) * 2022-06-20 2022-09-06 信丰骏达电子科技有限公司 一种pcb电路板硅胶涂覆装置
IT202200005738A1 (it) 2022-03-23 2023-09-23 Cefla Soc Cooperativa Metodo per la verniciatura di pannelli tramite teste vacuum
IT202200005726A1 (it) 2022-03-23 2023-09-23 Cefla Soc Cooperativa Testa vacuum per la verniciatura di bordi di pannelli

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3885052T3 (pl) * 2020-03-24 2023-03-27 Akzenta Paneele + Profile Gmbh Powlekanie krawędzi panelu środkiem powlekającym

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5976249A (en) 1996-10-11 1999-11-02 Josef Schiele Ohg Varnishing head
WO2002053296A1 (de) * 2001-01-08 2002-07-11 Schiele Josef Ohg Kantenbeschichtungsvorrichtung
ITFI20090093A1 (it) * 2009-05-05 2010-11-06 Makor S R L Unipersonale Dispositivo per rivestire pannelli rigidi con prodotti liquidi
ITBO20110287A1 (it) 2011-05-20 2012-11-21 Sorbini Srl Testa di verniciatura di tipo vacuum, adattabile al profilo del bordo di pannelli o d'altri manufatti da trattare.
US20150069150A1 (en) * 2013-09-10 2015-03-12 Armstrong World Industries, Inc. System for applying a coating to a workpiece

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102218589B1 (ko) * 2013-06-20 2021-02-23 삼성디스플레이 주식회사 수지 도포 장치, 그 방법 및 이를 이용한 수지층 형성방법
US9266141B2 (en) * 2013-09-10 2016-02-23 Awi Licensing Company System for applying a coating to a workpiece
DE102014110375A1 (de) * 2014-07-23 2016-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Vorrichtung zum Erzeugen eines Auftrags eines pastösen und/oder flüssigen Mediums
CN204235731U (zh) * 2014-09-25 2015-04-01 嘉兴顺联橡塑机械有限公司 一种喷嘴装置
CN204953252U (zh) * 2015-08-29 2016-01-13 苏州高新区华成电子有限公司 用于二极管的滴胶机
JP6063070B2 (ja) * 2016-01-11 2017-01-18 金原　茂 接着剤塗布ヘッド

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5976249A (en) 1996-10-11 1999-11-02 Josef Schiele Ohg Varnishing head
WO2002053296A1 (de) * 2001-01-08 2002-07-11 Schiele Josef Ohg Kantenbeschichtungsvorrichtung
ITFI20090093A1 (it) * 2009-05-05 2010-11-06 Makor S R L Unipersonale Dispositivo per rivestire pannelli rigidi con prodotti liquidi
ITBO20110287A1 (it) 2011-05-20 2012-11-21 Sorbini Srl Testa di verniciatura di tipo vacuum, adattabile al profilo del bordo di pannelli o d'altri manufatti da trattare.
US20150069150A1 (en) * 2013-09-10 2015-03-12 Armstrong World Industries, Inc. System for applying a coating to a workpiece

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202200005738A1 (it) 2022-03-23 2023-09-23 Cefla Soc Cooperativa Metodo per la verniciatura di pannelli tramite teste vacuum
IT202200005726A1 (it) 2022-03-23 2023-09-23 Cefla Soc Cooperativa Testa vacuum per la verniciatura di bordi di pannelli
EP4249135A1 (de) 2022-03-23 2023-09-27 Cefla Societa' Cooperativa Verfahren zum beschichten von paneelkanten durch vakuumbeschichtungsköpfe.
EP4249132A1 (de) 2022-03-23 2023-09-27 Cefla Societa' Cooperativa Vakuumbeschichtungskopf zum beschichten von plattenkanten
CN115007392A (zh) * 2022-06-20 2022-09-06 信丰骏达电子科技有限公司 一种pcb电路板硅胶涂覆装置

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Publication number Publication date
IT201600109468A1 (it) 2018-04-28
CN108014964A (zh) 2018-05-11

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