EP3725479A1 - Aufbau für antrag von anti-klebrigkeitsflüssigkeit am rande einer platte und maschine einschliessend eine solche aufbau - Google Patents
Aufbau für antrag von anti-klebrigkeitsflüssigkeit am rande einer platte und maschine einschliessend eine solche aufbau Download PDFInfo
- Publication number
- EP3725479A1 EP3725479A1 EP20166689.8A EP20166689A EP3725479A1 EP 3725479 A1 EP3725479 A1 EP 3725479A1 EP 20166689 A EP20166689 A EP 20166689A EP 3725479 A1 EP3725479 A1 EP 3725479A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- assembly
- adhesive liquid
- panel
- applicating member
- dispenser
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
- B27D5/003—Other working of veneer or plywood specially adapted to veneer or plywood securing a veneer strip to a panel edge
Definitions
- the present invention relates to an assembly for applying an anti-adhesive liquid on the edge of a panel and machine including such assembly.
- the invention relates to an assembly for the application of anti-adhesive liquid, made in particular in a machining center equipped with a banding unit.
- an anti-adhesive liquid is dispensed on said two upper and lower faces near the face to be edged, which prevents the adhesion of the excess glue.
- the panel constrained on a work surface, is subjected to various processes thanks to the movement of a machining head, arranged on a crosspiece, which can support, one at a time, the different tools or assemblies, depending on the machining or operation to be carried out on the piece.
- an assembly which has two nozzles arranged respectively facing the upper and lower face of the panel adjacent the face to be edged, so as to deliver anti-adhesive liquid by spraying on them.
- the distance between these two nozzles in general, must be manually adjusted by an operator according to the panel thickness.
- a further technical problem of the aforementioned assembly is that during the nebulization of the anti-adhesive liquid on the two upper and lower faces of the panel adjacent the face to be edged, said liquid can also be accidentally atomized on said face to be edged, thus not allowing perfect adhesion of the glue and therefore of the edge to be applied.
- flow banding machines are also comprised, in which, in this case, the panel is worked by the different groups, while it is moved by means of conveyor systems, such as for example belts or roller conveyors.
- the technical problem of the accidental delivery on the face to be edged represents a less significant problem than the case discussed above of the machining center, since, during the passage of the panel, grinding is carried out without appreciable additional processing times.
- the anti-adhesive liquid is applied on the panel by means of two rollers, each one of which applies the anti-adhesive by contact on the upper or lower surface, near the side surface to be banded.
- Said two rollers are wet by the anti-adhesive liquid, for example by nebulization, through two respective nozzles, and the contact of said rollers with the panel is guaranteed by the action of springs.
- the distance between said two rollers must be manually adjusted by an operator according to the thickness of the panel. This manual adjustment procedure, to be carried out whenever the thickness of a panel to be worked varies, negatively affects the machining times.
- Another object of the invention is to avoid the accidental delivery of anti-adhesive liquid on the face of the panel, on which the glue and subsequently the band have to be applied.
- a further object of the present invention is to provide the tools necessary for the execution of the method and the apparatuses, which perform this method.
- an assembly for applying an anti-adhesive liquid to a workpiece preferably a panel intended to the application of an edge
- said assembly is movable, in use, with respect to said panel
- said assembly comprises a fixing interface for coupling with an electrospindle along a reference axis, and at least one applicating member for applying said anti-adhesive liquid on at least a portion of a face of said panel, characterized in that it comprises at least one dispenser of said anti-adhesive liquid for dispensing said anti-adhesive liquid on said at least one applicating member.
- said assembly may comprise a first and a second applicating member and a first and a second dispenser respectively.
- said at least one applicating member may be of contact type.
- said at least one applicating member may be a roller.
- said at least one dispenser may comprise at least a nozzle, for nebulizing said anti-adhesive liquid on the respective applicating member.
- said assembly may comprise a frame, a lower support element, to support said first applicating member and said first dispenser, an upper support element, to support said second applicating member and said second dispenser, and a guide coupled with said frame and arranged in parallel with respect to a direction, preferably parallel to said reference axis, wherein said lower support element and/or said upper support element are slidingly coupled with said guide.
- said assembly may comprise an electric and/or hydraulic and/or pneumatic actuator, configured to move said first and second applicating member on said guide relatively to each other.
- said actuator may be of pneumatic type and comprises a stem and a cylinder.
- said assembly may comprise a first spring interposed between said lower support element and said first applicating member and/or a second spring interposed between said upper support element and said second applicating member.
- said assembly may comprise said first spring placed between said stem and said lower support element and/or it comprises said second spring interposed between said stem and said upper support element.
- said at least one dispenser may comprise at least a tank installed on said frame containing said anti-adhesive liquid, wherein said tank is configured to refill said at least one dispenser and/or at least one applicating member.
- said at least one applicating member may be at least partially immersed in said tank, so that said at least one applicating member is wet with said liquid.
- said assembly may comprise a duct for supplying said at least one dispenser of said anti-adhesive liquid, wherein said duct is connectable to a remote tank.
- said assembly may comprise a sensor for monitoring the amount of anti-adhesive liquid contained in said tank or in said remote tank.
- a machine for working panels comprising a base, having a working plane for supporting and clamping said panels, a banding unit for banding said panels, movable along a first, a second, and a third Cartesian axis, and an operating head, movable along said first, second, and third Cartesian axis, said operating head comprises an electrospindle, wherein said machine is characterized in that it further comprises an assembly for applying an anti-adhesive liquid according to any one of the preceding claims, wherein said assembly is removably coupled with said electrospindle of said operating head, and wherein said assembly is configured for applying an anti-adhesive liquid on portions of the surface of said panel, before banding said panel by means of said banding unit.
- Said assembly 1 is used on a machine 2 or machining center, in particular a machining center as shown in figures 1-2 .
- said machine 2 for machining pieces such as for example panels P, comprises a base 20 comprising in its turn a working plane 21 for supporting said panels P to be processed, and a blocking system 23 to support and block the panel P to be machined on said working plane 21.
- Said machine 2 further comprises a processing unit 22, movable with respect to said working plane 21 and said base 20.
- Said processing unit 22 translates along said working plane 21 along a Cartesian axis X.
- Said processing unit 22 comprises a crossbar 221, which extends in length along a Y-axis orthogonal to said X-axis.
- Said processing unit 22 further comprises an operating head 222, slidingly coupled to said crossbar 221 along said Y-axis by means of guiding means 225.
- Said operating head 222 comprises in turn an electrospindle 224.
- Said electrospindle 224 can be oriented in the space by said operating head 222 and is equipped with a socket for locking the different types of machining tools and other devices, including also the assembly 1 for the application of the anti-adhesive liquid described below.
- Said mobile processing unit 22 further comprises a banding unit 223, also slidingly coupled with said crossbar 221 along said Y-axis, independently of said operating head 222 and by means of said guiding means 225.
- an assembly 1 is observed for the application of anti-adhesive liquid according to the present invention, usable on machining centers equipped with a banding unit.
- Said assembly 1 for the application of anti-adhesive liquid essentially comprises a fixing interface 10, for coupling with said electrospindle unit 224 along a reference axis A, at least one applicating member 131, 132, and at least one dispenser means 11, 12.
- said assembly 1 comprises a first 131 and a second 132 contact applicator member, in particular a first and a second roller, and a first 11 and a second 12 spraying dispenser means, in particular a first 121 and a second nozzle 122 for spraying the anti-adhesive liquid on said rollers 131 and 132.
- said first 131 and second 132 rollers are partially immersed in a respective tank containing said anti-adhesive liquid, so as to allow the transfer of the anti-adhesive liquid from each of said tanks to said first 131 and second 132 roller.
- Said assembly 1 comprises a frame 14, which in turn comprises a lower support element 141 and an upper support element 142 to support said first 131 and second 132 roller and said first 121 and second 122 nozzle, respectively.
- Said frame 14 also comprises an abutment element 144, arranged parallel to said reference axis a, and a guide 143 arranged parallel to said reference axis A.
- Said upper support element 142 is slidably coupled to said guide 143, so as to allow the movement of said second roller 132.
- said lower support element 141 can be slidably coupled to said guide 143. Still according to a further embodiment, both said support elements 141, 142 can be slidably coupled to said guide 143.
- said assembly 1 comprises an actuator 15, of pneumatic, electric or hydraulic type, for moving, along a direction parallel to said reference axis A, said first 131 and/or said second 132 roller, so as to adapt its position when they are in contact with the panel P to be banded, according to the thickness of the latter.
- Said actuator 15 which in the embodiment shown is of the pneumatic type, comprises a cylinder (not visible in the figures) and a stem 151.
- Said pneumatic actuator 15 is configured to allow said second roller 132 to move along said direction parallel to said reference axis A.
- said pneumatic actuator 15 causes the movement of said upper support element 142 along said guide 143.
- Said assembly 1 further comprises a first spring 17, associated with the first roller 131 and arranged on said lower support element 141, and adapted, by working in compression, to guarantee the contact between said first roller 131 and the lower face P1 of said panel P, on which applying the anti-adhesive liquid.
- said pneumatic actuator may not always guarantee optimal contact between said second roller 132, and the upper face P2 of said panel P in case of variations in thickness of the same panel P.
- said stem 151 comprises a second spring 18 associated with it and arranged on said upper support element 142.
- Said assembly 1 is also equipped with a tank 16 of anti-adhesive liquid, preferably installed on said support frame 14 of said assembly 1, to supply said dispensing means 11, 12 with anti-adhesive liquid.
- said tank 16 is remote with respect to said assembly 1 and feeds said dispensing means 11, 12 through a conduit (not shown in the figures).
- Said tank 16 can comprise a sensor for monitoring the quantity of anti-adhesive liquid in the same.
- An operator loads a panel P to be worked on the working plane 21 of said machine 2, locking it to the same by means of the blocking system 23.
- the processing unit 22 translates along said working plane 21, in the direction of the X-axis, until the crossbar 221 is above said panel P.
- the operating head 222 thus positions itself close to said panel P along the direction of the Y-axis, thanks to the movement along the guiding means 225.
- Said panel P is then subjected to the various cutting and/or milling processes by means of a processing tool supported and operated by the electrospindle 224, arranged on the operating head 222, and oriented in the space thanks to the movements of said head 222.
- said panel P before being banded with the banding unit 223 on the side P3, where the cutting took place, is subjected to the application of anti-adhesive liquid on the two faces, upper P2 and lower P1, adjacent to the lateral face P3 to be banded.
- the head 222 stores the machining tool previously used for cutting in the specific magazine and from it takes the assembly 1, which is equipped with an interface 10 for coupling with the electrospindle 224.
- the head is repositioned close the panel P bringing the assembly 1 laterally close to the face P3 of the panel P to be banded, thanks to the abutment element 144.
- the pneumatic actuator 15 is then activated, which moves the upper support element 142, and consequently the second roller 132, in a direction parallel to said reference axis A, along the guide 143, until said second roller 132 comes into contact with the upper face P2 of the panel P.
- the spring 18, working in compression guarantees an optimal contact between said second roller 132 and the upper face P2 of the panel P.
- the first 121 and the second 122 nozzle nebulize the anti-adhesive liquid taken from the tank 16 on the first 131 and second 132 roller respectively.
- the assembly 1 translates along the direction where the band must be applied, so that said first 131 and second 132 rollers, rolling respectively on said lower and top face of the panel P, apply the anti-adhesive liquid.
- the panel P is subjected to the banding machining by means of said banding unit 223.
- An advantage of the present invention is that of reducing the working times and the workload on the operator, allowing an automatic adjustment of the means for dispensing said liquid according to the thickness of the panel.
- Another advantage of the invention is that of avoiding the accidental detachment of the band due to the accidental delivery of anti-adhesive liquid on the lateral face P3 of the panel, on which the glue and subsequently the band have to be applied.
- a further advantage of the present invention is that of avoiding a milling process on the band of the panel to be banded, subsequent to the application of anti-adhesive liquid, thus positively influencing the processing times.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Coating Apparatus (AREA)
- Adhesives Or Adhesive Processes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT201900006170 | 2019-04-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3725479A1 true EP3725479A1 (de) | 2020-10-21 |
Family
ID=67957205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20166689.8A Pending EP3725479A1 (de) | 2019-04-19 | 2020-03-30 | Aufbau für antrag von anti-klebrigkeitsflüssigkeit am rande einer platte und maschine einschliessend eine solche aufbau |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP3725479A1 (de) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29819350U1 (de) * | 1998-09-29 | 1999-01-07 | Dorus Klebetechnik Gmbh & Co K | Vorrichtung zum Herstellen eines beschichteten Plattenelementes |
EP2774734A1 (de) * | 2013-03-08 | 2014-09-10 | W. Döllken & Co. GmbH | Verfahren zum Vergüten von Möbelplatten |
-
2020
- 2020-03-30 EP EP20166689.8A patent/EP3725479A1/de active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29819350U1 (de) * | 1998-09-29 | 1999-01-07 | Dorus Klebetechnik Gmbh & Co K | Vorrichtung zum Herstellen eines beschichteten Plattenelementes |
EP2774734A1 (de) * | 2013-03-08 | 2014-09-10 | W. Döllken & Co. GmbH | Verfahren zum Vergüten von Möbelplatten |
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