• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A rewinder (10) for attaching a cover tape to the edge (200a) of a plate (200), the tape having a thermally activatable side (100a). The banding apparatus (10) comprises a holding device adapted to hold a plate (200) and a pressing device (11) adapted to press the band against an edge (200a) of the plate (200) to connect them. The banding apparatus (10) has a plurality of emitters (12) configured to emit laser beams oriented to impinge, during operation, on a plurality of zones (A) of the thermally activatable side (100a) of the Meet bands (100). The emitters (12) are arranged with respect to the pressing device (11) so that the zones (A) during operation along the feed direction (C) are aligned.
    公开号:AT517183A2
    申请号:T209/2016
    申请日:2016-04-21
    公开日:2016-11-15
    发明作者:Davide Coltro；Stefano Greselin；Iorio Isabella De；Claudio Leone
    申请人:Scm Group Spa；
    IPC主号:
    专利说明:

    The present invention relates to a banding apparatus.
    In particular, the present invention relates to an apparatus and a method for re-gluing, in particular, a wood panel with a veneer strip.
    More specifically, the present invention involves the attachment of such a tape by thermal activation by a laser beam.
    The present invention allows efficient control of the amount and uniformity of heat delivered to the joint.
    Compared to laser-activated banders, it also allows the thickness of the band to be bonded, especially its thermally-activated layer, to be reduced, thus allowing a higher-quality processing of the sized products to be obtained.
    The present invention is thus to be classified in the field of gluing of plates.
    Nowadays, a conventional rewinder provides for the formation of an edge consisting of a cover layer and an adhesive layer.
    The adhesive layer is thermally activated to adhere to the edge to be coated.
    The thermal activation of the adhesive layer is carried out by this conventional method by a laser beam.
    An emissive device generates a laser beam which strikes the adhesive-coated side of the belt.
    The image of the beam on the belt, that is, the area of the latter hit by the beam, is moved over the entire height of the belt to activate the adhesive layer.
    A variant known today provides an adjustable optical zoom with which the amplitude of the laser beam image can be adjusted on the edge in order to adapt the latter to the height of the edge itself.
    A disadvantage of these conventional methods is the use of a high power laser that requires efficient cooling.
    Another disadvantage is that these methods provide the edge with a high power density, which is difficult to control and involves the risk of damaging the edge to be sanded.
    In addition, the application of this conventional method is limited and not easily adaptable when changing the color of the edge to be glued and thus the associated with this radiation absorption.
    The problem underlying the present invention is to achieve greater flexibility during the gluing process.
    The main object of the present invention is the realization of a banding apparatus which solves the above problem and eliminates the deficient disadvantages of the above-described conventional methods and apparatus.
    Within the scope of this task, the object of the present invention is to provide a rewinder that allows easy regulation of thermal performance to connect the edge band to the board.
    Another object of the present invention is the realization of a banding apparatus which allows preheating.
    Another object of the invention is to provide a banding apparatus which allows the application of banding of different heights.
    Another object of the present invention is to realize a rewinder which is more reliable than the conventional apparatuses described above.
    Yet another object of the present invention is to provide a banding apparatus which requires less maintenance and remains efficient for a long time.
    This object, as well as these and other objectives, which emerge even more clearly from the following description, are achieved with a Umleimapparat according to the appended patent claim 1.
    The detailed features of a stripper according to the invention are specified in the dependent claims.
    A banding apparatus according to the present invention allows the gradual heating of the tape to be applied by allowing better control of the temperature and thermal power delivered to the tape as compared to conventional laser apparatuses.
    Thus, with the banding apparatus of the present invention, banding bands can be processed in a wide range of colors and efficient adhesion thereof to the panel edge, while reducing the risk of damage to the band itself.
    The banding apparatus according to the present invention, in effect, allows the uniform heating of the band to be applied to the plate edge, as well as the use of a lower specific power, as compared to the conventional solutions, so that the risk of burns and damage to the band itself is avoided.
    Further features and advantages of the invention will become more apparent in the following description of a preferred but not exclusive embodiment of a banding apparatus according to the invention, illustrated in the non-limitative accompanying drawings, in which: Figure 1 shows a perspective diagram of a banding apparatus according to the present invention; some parts have been removed to make others more visible; Figure 2 shows a detail of the banding apparatus according to the present invention; Figures 3a and 3b show a band portion hit by laser beams emitted by a banding apparatus according to the present invention; Figures 4a and 4b show schematically two configurations of a banding apparatus according to the present invention.
    With particular reference to the aforesaid figures, numeral 10 designates a banding apparatus for attaching a shroud 100 to the edge 200a of a plate 200, said band 100 having a thermally activatable side 100a.
    The banding apparatus 10 includes a holding device, not shown, adapted to hold a plate 200, and a pressing device 11, adapted to press the tape 100 to an edge 200 a of the plate 200.
    The pressing device 11 defines for the belt 100 a feed device C, which during operation corresponds to a longitudinal direction C along which the belt 100 runs.
    In other words, during operation, the pressing device 11 guides the tape 100 which is fed thereto so as to be mounted on the edge 200a of the plate 200.
    The pressing device preferably comprises a roller which is arranged relative to the holding device so that the belt 100 is pressed against the edge 200a when the plate 200 is held by the holding device.
    Of course, the Umleimapparat can be set for the linear or for the curved banding.
    According to the present invention, the banding apparatus 10 has a feature that consists in having a plurality of emitters 12 configured to emit laser beams aligned to a plurality of zones during operation A of the thermally activatable side 100a of the belt 100, wherein the emitters 12 are arranged with respect to the pressing device 11 so that the zones A during operation along the feed direction C aligned zones.
    In other words, during operation, the emitters 12 radiate on the belt 100 in such a way that it is hit in zones A which follow one another, at least along the feed direction C.
    The belt 100 runs in the advancing direction C during operation so that the zones A pass along and gradually heat up the thermally activatable side 100a with which they collapse.
    In fact, during its relative movement with respect to the emitters 12, each portion of the tape is sequentially hit by a plurality of zones A, so that the tape corresponding to each of them receives a predetermined amount of heat by the laser radiation.
    This heating is gradual and thus easily controllable, and it allows to avoid the power densities typical of conventional laser banding machines.
    The emitters 12 are preferably arranged to form a matrix which emits laser beams which are suitable, during operation, to strike the thermally activatable side 100a of the belt 100 in the zones A, which preferably comprise zones also along at least one transverse direction aligned to a feed direction C trajectory B are aligned.
    In other words, the emitters 12 are configured to deliver a plurality of laser beams aligned to hit the thermoactivatable side 100a of the belt 100 in a plurality of zones a that extend both longitudinally and transversely of the feed direction C of FIG Bands 100 are aligned.
    A particularly efficient configuration provides that the trajectory B is preferably straight and perpendicular to the longitudinal direction C.
    In this way, the zones A hit on the belt 100 during operation by the laser beam bundles are also aligned along the trajectory B which is perpendicular to the longitudinal direction C of the belt 100.
    A banding apparatus 10 according to the present invention is in practice functionally more flexible than the conventional solutions, as the distribution of thermal power in the zones A along the transverse and transverse zones A with respect to the advancing direction C allows more uniform heating of the band 100 than the conventional ones Solutions, and the use of a lower specific power, so that the risk of burns and damage to the tape is avoided.
    With a banding apparatus 10 of the present invention, practically bandages can be processed in a wide range of colors and efficient adhesion of the same to the panel edge can be achieved, while reducing the risk of damage to the band itself.
    In an embodiment of the present invention which allows for particular flexibility and compactness, the banding apparatus 10 comprises a plurality of emitters 12 - which may be enclosed in a multi-bundle head 13 - which are preferably arranged in at least two rows and at least two columns around which to irradiate correspondingly arranged in at least two rows and at least two columns zones.
    See, in particular, Figures 1 to 3a and 3b, which show, by way of example and not limitation, an embodiment of the present invention which is a preferred solution that provides a good compromise between tape heating size and capacity.
    It comprises 8 emitters 12 arranged in two juxtaposed rows, each comprising 4 emitters 12, such as to be capable of forming two juxtaposed rows on the thermoactivatable side 100a, each of 4 second zones A, such as, for example is shown in Figures 3a and 3b.
    In an embodiment which allows for a particularly high flexibility of the banding apparatus 10, the banding apparatus 10 is advantageously configured so that the emitters 12 can be selectively activated; For this purpose, the
    Applicator 10 preferably includes a programmable and / or activatable controller 100 for selectively activating the emitters 12 to modulate the extent of a portion of the tape 100 hit during operation by the beams emitted by the emitters 12.
    The belt is heated during operation by the successive action of the emitters 12 directed thereto.
    An embodiment of the banding apparatus 10 may, for example, be of the type of a linear feed type leader of the plate 200 and the belt 100; in this case, it may have fixed emitters 12, as shown for example in FIG.
    These may for example be arranged in two rows or columns of four emitters 12, as shown in Figures 1 and 2.
    In this case, the belt 100 leading to the pressing device 11 is successively hit first by the beams generated by the first column of emitters 12 and then by the beams generated by the second column of emitters 12.
    A larger number of possibly spaced columns of emitters 12 allows the fine modulation of the power density transferred to the thermoactivatable side 100a of the belt 100 to surface units of this page.
    In the preferred embodiment of the present invention illustrated in Figures 4a and 4b, the emitters are grouped together in multi-beam mobile heads identified by reference numerals 13a, 13b and 13c.
    These multi-beam heads are selectively activatable and mobile with respect to the belt 100 so as to modulate the extension of a portion 100b of the belt 100 struck by the beams generated by the active multi-beam heads.
    Specifically, as it is struck by the beams produced by one of these heads, the tape is first hit by the beams produced by the emitters of the first column and then by the beams produced by the emitters of the second column.
    In this way, the heating of the tape is gradual, substantially in stages, and temperature shocks of the tape are avoided.
    A selective activation of the multi-bundle heads 13 and / or the emitter 12 of the same allows, moreover, a fine but simple regulation of the thermal power delivered to the belt and thus a simple adaptation of the banding apparatus 10 for mounting bands of different colors or in general of bands with different thermal absorption. For a particularly high application flexibility, the multi-bundle heads 13 advantageously comprise movement means 14, which are configured to move the emitters 12.
    The movement means 14 are activatable to align the emitters 12 during operation to regulate the relative position with respect to the zones A along the height at the belt 100, thereby modulating the specific power transmitted to the belt 100 and / or the extent of a transmission zones A of the detected portion of the surface of the belt 100 is modulated.
    Preferably, the movement means 14 are configured to move the emitters 12 so that their laser beam emission range is aligned with a rotational movement D and / or a longitudinal movement E such that the zones A on the belt 100 are parallel to the longitudinal direction C of the belt 100 extending direction and / or in a direction along the height of the band D 'can be moved, that is perpendicular to the longitudinal direction C, as shown for example in Figure 2.
    In this way, the extent of the range of the band 100 hit by the beams emitted by the emitters of a multi-beam head 13 is adjustable.
    This flexibility is further enhanced if the banding apparatus 10 advantageously comprises repositioning means (not shown) configured to move at least one of the multi-bundle heads 13.
    The repositioning means are activatable to align at least one multi-beam head 13 during operation to regulate, during operation, the relative position of the zones A over the length of the belt 100, thereby modulating the specific power transmitted to the belt 100 and / or the expansion a portion of the surface of the belt 100 detected by the zones A is modulated.
    In this way, it is possible to easily adapt the area affected by the beams emitted by the emitters 12 and thus to adapt the banding apparatus 10 to apply bands of different colors or at different speeds, or differently absorbing or again different bands, as in the figures 3a and 3b, in which two differently high sections 300 of the belt 100 can be seen, the orientation of the emitters 12 being regulated by means of the movement means 14 so that the zones A are distributed along the belt height, see FIG. 3a, or compacted are, see Figure 3b.
    A banding apparatus 10 according to the present invention also makes it possible to easily adjust the relative speed of the belt 100 with respect to the multi-beam heads 13.
    If this speed is low, the number of active multi-beam heads 13 can be reduced, and conversely, the number of active multi-beam heads 13 or the emitter thereof can be increased at high speed to maintain the power density transmitted to the belt 100 at a predetermined value.
    An embodiment that allows for particular flexibility in activating the multi-bundle heads 13 provides that the rewinder 10 includes drive means (not shown) for moving at least one of the multi-bundle heads 13 with respect to the position occupied by tape 100 during operation.
    In particular, this flexibility is improved when the banding apparatus 10 advantageously comprises repositioning means configured to move at least one of the multi-bundle heads 13.
    These repositioning means are activatable to align during operation the multibeam head (s) 13 to regulate, during operation, the relative position of the zones A on the belt 100, thereby modulating the specific power transmitted to the belt 100 and / or the extension of one zones A of the detected portion of the surface of the belt 100 is modulated.
    At least one of the multi-beam heads 13 has an emission direction of the laser beam emitted by said emitters 12 during operation, incident on the belt 100 on a plane perpendicular to the longitudinal direction C of said belt 100 on the belt forming a right angle to the thermo-activatable side 100.
    Particular application flexibility arises with an embodiment of the present invention in which the repositioning means are configured to be capable of rotating the multi-beam heads 13 with respect to the position occupied by the belt 100 during operation F and / or proceeding G ,
    In this way, the configurations illustrated in FIGS. 4a and 4b are possible.
    The first of these figures shows a configuration in the case where a lower thermal performance is required (for example, in the case of a lower band), and therefore only the first 13a and the third 13c of the multi-beam heads 13 become active and in this case 5 towards the band 100 while the second 13b is inactive and has retreated with respect to the latter. If, starting from this configuration, a higher power is required for the band heating, for example when working with a higher band, then the drive means would drive back the first 13a and the third 13c of the multi-beam heads 13 and the second 13b of the multi-beam heads 13 would advance and activate in order to be able to irradiate a larger area with the 15 beams emitted by the emitters 12.
    In a particularly compact embodiment of the present invention, the banding apparatus 10 has at least one of the emitters 12, but preferably all emitters 12, with the following components: at least one light emitting diode, i. an LED adapted to generate laser light; a light guide 15, preferably comprising or consisting of an optical fiber, having a diode-facing input region for receiving light radiation and an output region configured to project a laser light beam onto the belt 100.
    A particularly efficient effect arises in the case where each emitter 12 further comprises a collimator 16 suitable for collimating a laser light beam connected to the output region of the light guide 15.
    In one embodiment that allows for particular compactness and uniformity of irradiation of the belt 100, each of the multi-beam heads comprises a carcass in which the laser LEDs are mounted directly in a plurality of columns, each of which contains a plurality of LEDs; a plurality of lenses positioned in front of each LED column to align and collimate their beams.
    Preferably, a system for cooling the LEDs is provided which, thanks to the low power required according to the present invention, can be air cooling, with corresponding savings and simpler structure compared to the conventional solutions.
    As has been found, a banding apparatus 10 of the present invention has numerous advantages.
    In particular, since damage to a single diode / emitter reduces the emitted radiation only slightly, in this case the system will continue to operate at slightly lower relative head-to-tape speeds.
    The banding apparatus 10 of the present invention also has a very simple system construction, especially in the case of the linear banding configuration.
    In a banding apparatus 10 according to the present invention, the energy is distributed more efficiently than in the conventional single high power (also 2kW) laser transported laser.
    The ability to commercially purchase pre-assembled LED packages / arrays cost-effective to form the multi-bundle heads and possibly stockpile also allows optimization of logistics management and maintenance of the rewinder of the present invention.
    The described invention is capable of numerous modifications and variations, all of which fall within the scope of the appended claims.
    Furthermore, all the details of the invention may be replaced by technically equivalent elements.
    In the practice of the invention, the materials used as well as the respective shapes and sizes can be varied as desired according to the respective requirements and the state of the art.
    Insofar as reference is made to the structural and technical features listed in the appended claims, these reference numerals or numbers are inserted only for the purpose of better understanding of the claims and therefore have no limiting effect on the design of each element, by way of illustration only The reference numbers or numbers are marked.
    权利要求:
    Claims (6)
    [1]
    claims:
    A pasting apparatus (10) for attaching a cover tape (100) to the edge (200a) of a disk (200), said tape (100) having a thermally activatable side (100a), said apparatus comprising a retainer suitable for retention a plate (200) and a pressing device (11) adapted to press said tape (100) against an edge (200a) of said plate (200); said pressing means (11) for said strip (100) defining a feed direction (C) with which, during operation, a longitudinal direction (C) in which said strip (100) passes is coincident; said apparatus being characterized by having a plurality of emitters (12) configured to emit laser beams aligned to a plurality of thermally-activatable-side zones (A) during operation (100a) of said belt (100), said emitters (12) being arranged with respect to said pressing device (11) such that said zones (A) comprise zones aligned along the feed direction (C) during operation.
    [2]
    The banding apparatus (10) of claim 1, characterized in that said emitters 12 are arranged so that said zones (A) comprise zones aligned along at least one trajectory (B) transverse to a direction of advance (C) ,
    [3]
    3. Umleimapparat (10) according to claim 2, characterized in that said at least one trajectory (B) is rectilinear and perpendicular to said longitudinal direction (C). 4. A smoothing apparatus (10) according to any one of the preceding claims, characterized in that said emitters 12 are arranged in at least two rows and in at least two columns around said zones (A) arranged correspondingly in at least two rows and in at least two columns ) to be irradiated. A humidifier (10) according to claim 4, characterized in that said emitters (12) can be selectively activated, said humidifier comprising a programmable and / or activatable control device (100) for selectively activating said emitters (12), to modulate the extent of a portion of said band (100) struck during operation by the beams emitted by the emitters (12). 6. A smoothing apparatus (10) according to one of the preceding claims 2 to 5, characterized in that it comprises movement means (14) which are configured to move said emitters (12), said movement means (14) being activatable, to align said emitters (12) during operation to regulate the relative position of said zones (A) along said trajectory (B) on said strip (100), thereby increasing the specificity of said strip (100). modulated transmitted power and / or the extent of a part of the surface of said belt (100) detected by said zones (A) is modulated. A calf feeder (10) according to any one of the preceding claims, characterized by comprising drive means for moving at least one of said emitters (12) with respect to the position occupied by said tape (100) during operation.
    [8]
    A pasting apparatus (10) according to any one of the preceding claims, characterized in that at least one of said emitters (12) has an emission direction which is perpendicular to the longitudinal direction C of said tape (100) forming a right angle to said one thermally activatable side (100a) incident on said band (100).
    [9]
    Banding apparatus (10) according to any one of the preceding claims, characterized in that it comprises repositioning means configured to move at least one of said emitters (12), said repositioning means being activatable to move said emitters (12). during operation to regulate the relative position of said zones (A) on said belt (100) along said feed direction (C) on said belt (100), whereby the specific belt (100) modulated transmitted power and / or the extent of a part of the surface of said belt (100) detected by said zones (A) is modulated.
    [10]
    A pasting apparatus (10) according to any one of the preceding claims, characterized in that at least one of said emitters (12) comprises: - at least one light emitting diode adapted to generate laser light; a light guide (15) having an input region directed to said at least one diode to receive light radiation and an output region configured to project a laser light beam onto said band (100). Vienna, April 21, 2016 Applicant by: Haffn & r and Keßchmann Paten / ranwjalte / GmbH I Jt ^
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    同族专利:
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    DE102016004762A1|2016-10-27|
    引用文献:
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    US6451152B1|2000-05-24|2002-09-17|The Boeing Company|Method for heating and controlling temperature of composite material during automated placement|
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    DE102009030641B3|2009-06-25|2011-02-10|Ima Klessmann Gmbh Holzbearbeitungssysteme|machining center|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ITUB2015A000532A|ITUB20150532A1|2015-04-21|2015-04-21|EDGE BANDING DEVICE|
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