• 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:
    Cutting device for a continuous milling machine (1) for profiling one or more edges (2) of panels (3). The cutting device includes a sliding shoe (4) or pressure shoe (5), which has a sliding surface or surfaces (6) for passing a surface (7-8) of a panel (3) to be milled over it. Said sliding shoe (4) or pressure shoe (5) is provided with at least one cutting blade (9) for machining the panel (3), this cutting blade maintaining a fixed position during this operation. The sliding shoe (4) or the pressure shoe (5) is provided to support the surface of the panel to be milled by means of its sliding surface or sliding surfaces (6) on a rotating milling tool (11) performing a milling operation on the edge of the panel .
    公开号:BE1027029B1
    申请号:E20195638
    申请日:2019-09-25
    公开日:2020-11-20
    发明作者:Rick Jan De
    申请人:Flooring Ind Ltd Sarl；
    IPC主号:
    专利说明:

    This invention relates to a slide or push shoe for a continuous milling machine, to a cutting device for a continuous milling machine, as well as methods for making panels using such sliding or pressure shoes, cutters and continuous milling machines. could be.
    It is known per se, for example from WO 97/47834, WO 2006/103565 and WO 2011/077311 that panels such as floor panels can be profiled at their edges by means of a milling operation. In the case of floor panels, for instance, profiles can be formed which comprise mechanical coupling means and / or lowered edge areas or chamfers such as a bevel. The milling operation is carried out here by means of one or more rotating milling tools in a continuous milling machine. In WO 2006/103565 it is disclosed that for this purpose the panels can be directed with their decorative surface downwards and transported by means of a chain, with cams, through the continuous milling machine while being profiled at one or both, for example, long edges by hand. of the aforementioned milling tools. At the location of the rotating milling tools, the decorative surface is guided over the sliding surface of a so-called sliding shoe, while the panel on the opposite surface is held against the chain by means of the sliding surface of a pressure shoe. In this way an accurate milling operation can be obtained.
    At least three rotating milling tools are usually used for milling coupling means as known from the aforementioned international patent applications. In case a chamfer such as an edge chamfer is desired, a fourth motor position is occupied by a tool that mills or cuts the chamfer. Such an arrangement limits the throughput speed, but is often the only solution when, for example, working with a continuous milling machine that only has four motor positions on each side.
    The present invention aims to provide a more economical solution for profiling the edges of panels.
    A first independent aspect of the invention relates to a sliding or pressure shoe for a continuous milling machine for profiling one or more edges of panels, wherein the sliding shoe or pressure shoe in question has a sliding surface or surfaces for passing a surface of a panel to be milled over it. , characterized in that said sliding or pressure shoe is provided with at least one cutting blade.
    A second independent aspect is a continuous milling machine cutting device for profiling one or more edges of panels.
    The cutting device includes a sliding shoe or pressure shoe.
    The respective sliding shoe or pressure shoe has a sliding surface or surfaces for guiding a surface of a panel to be milled over it.
    The aforementioned sliding shoe or pressure shoe is provided with at least one cutting blade for machining the panel.
    This cutting blade maintains a fixed position during this operation.
    The sliding shoe or pressure shoe is provided to support the surface of the panel to be milled by means of its sliding surface or surfaces on a rotary milling tool that performs a milling operation on the edge of the panel.
    Preferably, the cutting device includes a rotary milling tool for milling the panel at the slide shoe or pressure shoe.
    Because the cutting blade - in the first and in the second aspect of the invention - is provided on a sliding shoe or a pressure shoe, the positioning of the cutting surface of the cutting blade with respect to the panel edge can be accurately adjusted.
    Preferably, the cutting blade is provided on a sliding shoe, namely on a shoe that forms a sliding surface or surfaces for the decorative side of the panel.
    Preferably, such a sliding shoe is fixedly mounted per se on the bed (French: bâti) of the continuous milling machine.
    The sliding surface of such sliding shoe is preferably oriented in the same or substantially the same direction as the fixed conveyor element of the continuous milling machine, such as for example in the same or substantially the same direction as the chain.
    As can be seen from the first and second aspects, it is also possible to provide the cutting blade on a pressure shoe, namely on a shoe which forms a sliding surface for the bottom of the panel, and which has a sliding surface oriented opposite to the fixed conveyor element of the continuous milling machine . A pressure shoe is preferably arranged slightly resiliently, for instance pushed against the rear of the panel by means of one or more pneumatic cylinders. The cutting blade on the sliding shoe or pressure shoe can have one or more functions. For example, it can be used to provide a chamfer or bevel, making occupying a motor position unnecessary for this. Instead, the released motor position can be occupied by an additional rotating milling tool and the material to be removed can be more evenly distributed among the available rotating milling tools. In this way, the power required to drive these milling tools can be reduced, and / or the throughput of the milling machine can be increased.
    The sliding shoe or pressure shoe preferably includes a one-piece part. This one piece part includes a sliding surface or surfaces to support the panel both before and after the position where the rotary mill tool can perform the milling operation on the edge of the panel.
    The sliding shoe or the pressure shoe can contain two separate parts. The first part includes a sliding surface to support the panel for the position where the rotary mill tool can perform the milling operation on the edge of the panel. The second part includes a sliding surface to support the panel after the position where the rotary mill tool can perform the milling operation on the edge of the panel.
    According to the invention, the best positioning accuracy can be obtained by providing the relevant cutting knife on a sliding shoe which is fixedly mounted on the bed of the machine.
    Preferably, said cutting blade assumes a fixed position with respect to the sliding surface of said sliding or pressure shoe, or at least at least this position can be fixed during use. According to another possibility, the above-mentioned cutting blade can be arranged movably, for instance to obtain special decorative effects, such as for instance a bevel with a geometry that varies along the relevant edge.
    Preferably, the position of the above-mentioned cutting blade with respect to the above-mentioned sliding surface is designed to be adjustable. For instance, the aforementioned position can be made adjustable by means of one or more adjusting screws, and the aforementioned cutting blade can preferably be fixed in the relevant obtained position. Preferably, the relevant cutting knife is positionable at least in a direction perpendicular to the surface of the relevant panel or transverse / perpendicular to the sliding surface, and / or at least in a direction H in the plane of the relevant panel or in the sliding surface and at right angles to the sliding surface. edge of the panel to be processed. The positionability of the relevant cutting knife is preferably independent of or relative to the sliding surface of the sliding shoe or pressure shoe on which the relevant cutting knife is provided.
    Preferably, the aforementioned cutting blade has a cutting surface that forms an angle with a surface of the panel to be milled.
    Preferably, the cutting blade is intended to remove a portion of the decorative surface from the panel in question, for example to form a depressed edge area, such as a chamfer or bevel.
    Preferably, the aforementioned cutting blade is a non-rotating cutting blade, or scraping blade.
    Preferably, it is always a single cutting knife on each of the edges of the panel which is machined by the continuous milling machine in a single pass. When it concerns, for example, a so-called double-end tenoner, there is preferably at least one, and preferably just one, cutting knife on each of both sides of the continuous milling machine, which cuts the relevant edge of the panel. According to another possibility, such a cutting knife can form part of a knife block with several such cutting knives, which preferably have a mutually different geometry, preferably such that, viewed in the through direction of the through-milling machine, a second knife cuts edge portions of the panel that do not pass through. a first knife. For example, a number of knives can be used one after the other, which in each case work or remove additional edge portions of the panel.
    According to a variant, and an independent third aspect of the present invention, the invention relates to a continuous milling machine for profiling one or more edges of panels, wherein the continuous milling machine is provided with at least one non-rotating cutting blade which occupies a fixed position with respect to the machine bed, more specifically, is attached directly or via a sliding shoe to the machine bed. A fourth aspect of the invention relates to a continuous milling machine for profiling one or more edges of panels. The continuous milling machine includes a cutting device as in the second aspect of the invention. The continuous milling machine includes positions with additional rotary milling tools for machining the edge of the panel that can be machined by the cutter. It is clear that an embodiment of the third and / or fourth aspect in which a non-rotating cutting blade is provided on a sliding shoe, exhibits or can exhibit the same advantages as mentioned in the context of the first aspect of the invention. In case a non-rotating cutting blade is otherwise fixed on the machine bed, the accuracy may be more limited. However, such an arrangement is interesting, for example, when the relevant non-rotating cutting blade is intended to perform a roughing operation. For example, in the event that an edge of a panel is to eventually be provided with a groove with a lower and upper groove lip, one of the groove lips, e.g. the lower groove lip, extends beyond the other, e.g. part of the panel to be removed at the location of the protruding lip part can be removed with such a cutting knife. After this, finer operations can then be applied, preferably by means of rotating cutting tools to form the final surfaces of the groove concerned. For example, it may be the groove of a locking tongue-in-groove connection, as is known per se from the aforementioned WO 97/47834. By removing part of the material to be removed by means of such a roughening operation, the power required to remove the remaining material to form the final groove surfaces can be limited, or the throughput speed increased without necessarily increasing the service life of the rotating milling tools is affected. The service life of the knife used is of little or no importance. Firstly, it is a roughing operation, and secondly, due to the low precision required, it can be easily replaced.
    With the same object as in the first, second, third and fourth aspects of the invention, according to an independent fifth aspect, the present invention relates to a method for manufacturing panels, wherein these panels have a profiled edge region at one or more edges and the method at least comprises the step of forming the respective profiled edge area at least by means of one or more rotary milling tools in a continuous milling machine, the panel to be milled being guided with its surface over the sliding surface or surfaces of at least one sliding or pressure shoe, with characterized in that the method further comprises the step of forming a portion of the respective profiled edge region by means of a non-rotating cutting tool, the said non-rotating cutting tool comprising at least a cutting blade provided on the said sliding or pressure shoe and / or fixed to the machine bed. It is clear that in the method of the fifth aspect preferably a sliding or pressure shoe with the features of the first aspect is used and / or a cutting device according to the second aspect of the invention and / or a continuous milling machine with the features of the third. or fourth aspect. The sixth aspect of the invention relates to a method of manufacturing panels using a continuous milling machine as in the fourth aspect of the invention. These panels have a profiled edge area on one or more edges, the shaping of the respective profiled edge area being carried out at least by means of one or more of the additional rotating milling tools. The panel to be milled is guided with its surface over the sliding surface or surfaces of the sliding shoe or pressure shoe. The method includes the step of forming a portion of the respective profiled edge area by means of the cutting knife provided on the aforementioned sliding shoe or pressure shoe.
    Preferably, in methods according to the fifth aspect of the invention and in methods according to the sixth aspect of the invention, a milling operation is also performed on the respective edge at the location of the aforementioned sliding or pressure shoe and / or at the location of the installed cutting blade by means of of a rotary milling tool. On-site is understood to mean that the respective sliding or pressure shoe with the cutting blade guides the edge of the floor panel to be machined by means of its sliding surface or sliding surfaces at the location of the engagement of the rotating milling tool and / or that the same pressure shoe guides the edge of the floor panel. guides by means of its sliding surface or surfaces at the site of the engagement of the cutting blade and the rotating milling tool. In one variant, the edge of the floor panel at the cutting blade may be accompanied by a separate pressure shoe that is arranged independently of any pressure shoe that guides the edge of the panel at a rotating milling tool.
    Preferably, the rotary milling tool engages the edge of the panel so that the milling tool rotates away from the position of the cutting blade while engaging the edge of the panel. These embodiments have the advantage that dust and chips formed by the rotary milling tool are directed away from the cutting blade, so that the cutting blade can make a higher quality cutting edge in the panel, while also improving the efficiency of the process.
    Preferably, at least three or four, or just three or four, rotating milling tools and the aforementioned cutting blade are employed to form the aforementioned profiled edge region. This embodiment is particularly interesting in the cases where a continuous milling machine is used which only has four motor positions on each side.
    As already mentioned, the aforementioned profiled edge region at the location of at least one of the main surfaces of the panel preferably has a chamfer, for instance in the form of a chamfer, the surface of the respective chamfer being at least partly, but preferably exclusively, formed by the aforementioned cutting blade. Preferably, such bevel is located on the decorative surface of the panel in question. Such bevel may extend at an angle of 5 to 65 ° to the horizontal. According to a first particular embodiment, it extends at an angle of 5 to 15 ° to the horizontal. With such chamfer or bevel, any height difference at the seam between two panels due to a different thickness of the adjacent panels can be satisfactorily masked. Preferably, the surface of such bevel is free from intersections with any decorative layer that may be present on the surface of such panel. Preferably, the depth of such chamfer is thus limited to a maximum of the thickness of any transparent or translucent wear layer applied above such decorative layer. According to a second particular embodiment, it extends at an angle of 40 to 65 ° to the horizontal. In such a case, the bevel surface preferably cuts with some decoration present on the surface of the panels concerned. Such chamfers may have the purpose of highlighting the panel in question more prominently in a surface formed by a plurality of such floor panels and / or may hide gaps between adjacent panels. Of course they are also effective in hiding height differences at a seam between adjacent panels.
    From the above, it is clear that the above-mentioned panels are preferably provided on at least one of the main surfaces with a coating, preferably at least formed by a transparent thermoplastic layer, for instance polyvinyl chloride layer, preferably with an underlying decoration or decorative layer. Such a decorative layer can for instance be formed by a printed thermoplastic film. According to another embodiment, the aforementioned panels are provided on at least one of the main surfaces with a wooden or stone covering, such as with a wood veneer or stone veneer, for example with a thickness between 0.3 and 1 millimeter, or with a thickness of 2.5 millimeters or more. .
    Preferably, the aforementioned panels exhibit a substrate material comprising mineral constituents, preferably having a mineral constituent content that is at least 40% by weight, and more preferably at least 60% by weight. The aforementioned mineral constituents may comprise, for example, at least lime, limestone or talc. In another example, the aforementioned panels exhibit a cement-based substrate material, such as Portland cement or magnesium oxide cement. For panels with a high content of mineral components, edge machining requires significant motor power if one wants to work at economical throughput speeds, for example, throughput speeds greater than 45 m / min, or of 80 m / min or more, for example at about 120 m / min or more. These higher speeds are especially desirable when machining the long pair of opposite edges of rectangular floor panels. Preferably, the aforementioned panels exhibit a substrate material comprising thermoplastic material, preferably hard polyvinyl chloride (PVC), namely preferably PVC with a plasticizer content below 5 phr. Such panels may exhibit a content of mineral components or other fillers that is at least 40% by weight, and more preferably at least 60% by weight. This may include lime, limestone, talc, wood, bamboo and the like. In particular, the presence of rigid PVC requires significant engine power if one is to obtain economic throughput rates of the order of magnitude as mentioned above. It is clear that the aforementioned profiled edge area can comprise a coupling means with which the panel concerned can cooperate with one or more edges of similar panels. Preferably, the coupling means is formed at least in part by the milling operation with the rotary milling tool. Preferably, these are rectangular floor panels in which the opposite long edges are mainly designed as a locking tongue-in-groove connection.
    With the insight to better demonstrate the features of the invention, some preferred embodiments are described below, by way of example without any limitation, with reference to the accompanying drawings, in which: Figure 1 shows a method for manufacturing panels having the features of the present invention; Figure 2 represents a cross-section according to the line II shown in Figure 1, Figure 3 represents a cross-section according to the line TII-MT shown in Figure 2; Figure 4 shows a detail view according to line II-II shown in Figure 1 of a first embodiment of a cutting device according to the invention; and Figure 5 shows a detail view according to line II-II shown in Figure 1 of a second embodiment of a cutting device according to the invention.
    Figure 1 shows a top view of a continuous milling machine 1 for profiling one or more edges 2 of panels 3. In this case it concerns a continuous milling machine of the double-end tenoner type for milling the short opposite edges of rectangular floor panels. The principles of the invention can be translated mutatis mutandis for a similar milling machine for profiling the opposite long edges.
    Figures 2 and 3 show further views of the same continuous milling machine 1. The references employed, as far as not defined here, are defined by means of the appended claims.
    In particular, it is shown in Figure 3 that at the location of the cutting blade 9 a rotating milling tool 11 is active for machining the edge 2. Here, the edge 2 is supported for both operations by sliding surfaces 6 of the same sliding shoe 4 and pressure shoe 5.
    In the example, it is not shown that the opposite edge 2 of the panel, for example, is machined in a similar manner, namely at least with one non-rotating cutting blade 9 forming a bevel 13, with the difference that the coupling means 16 on the opposite edge 2 is designed as a groove in place of a tongue 17 in the case of the rim shown.
    It is clear that in the illustrated embodiment the cutting blade 9 is provided on the sliding shoe 4, and that it can be provided on the pressure shoe 5, mutatis mutandis.
    It is not necessary for a cutting knife 9 provided on the sliding shoe 4 and pressure shoe 5, respectively, to treat the surface 7 and surface 8, respectively, which is passed over the sliding surface 6 of the respective sliding shoe 4.
    Namely, it is possible for a cutting blade 9 mounted on the sliding shoe 4 to work the opposite surface 8, for example because the respective cutting blade 9 working the opposite surface 8 via a bridge bridging the thickness of the panel, and vice-versa for a cutting blade mounted on the pressure shoe 5. Furthermore, it is also possible for the cutting knife 9 to be used to process a portion of the substrate 15, without necessarily removing part of the surfaces 7-8.
    The substrate 15 can be provided with a coating, for example formed by a transparent thermoplastic layer 14. The cutting knife 9 can, as mentioned in the introduction, be used as a roughening operation.
    As stated in the introduction, such a knife can also be rigidly connected to the machine bed 18 in other ways.
    The machine bed 18 is only schematically shown in figure 3, but the skilled person is sufficiently aware that a machine bed 18 is the reference construction of the continuous milling machine 1.
    Figure 4 shows a detail view according to line II-II shown in figure 1 of a first embodiment of a cutting device according to the invention.
    The sliding shoe 4 of figure 4 is made in one piece.
    The sliding shoe 4 has sliding surfaces 6 for guiding a surface of a panel to be milled over it.
    A cutting blade 9 is attached to this sliding shoe 4. The cutting blade 9 is attached to the sliding shoe 4 by means of two bolts 21 in a slot 23 of the cutting blade.
    By loosening these two bolts 21, the vertical position of the cutting blade 9 can be adjusted by means of an obliquely placed adjusting screw 25, after which the cutting blade is fixed to the sliding shoe with the two bolts.
    The sliding shoe is designed in such a way that space 27 is available for mounting and the operation of a rotating milling tool. The one-piece sliding shoe, by means of its sliding surfaces, can support the panel at the positions before and after the engagement of the rotary milling tool. This milling tool is not shown in figure 4. Thus, at the location of this sliding shoe, a milling operation can be performed by means of a rotating milling tool, simultaneously with forming a portion of the profiled edge region of the panel by means of the cutting knife 9.
    Figure 5 shows a detail view according to line II-II shown in Figure 1 of a second embodiment of a cutting device according to the invention. The sliding shoe 4 of figure 4 is designed in two parts. The sliding shoe 4 has sliding surfaces 6 for guiding a surface of a panel to be milled over it. A cutting blade 9 is attached to this sliding shoe 4. The cutting blade 9 is attached to the sliding shoe 4 by means of two bolts 21 in a slot 23 of the cutting blade. By loosening these two bolts 21, the vertical position of the cutting blade 9 can be adjusted by means of an obliquely placed adjusting screw 25, after which the cutting blade is fixed to the sliding shoe with the two bolts. The sliding shoe is designed in such a way that space 27 is available for the mounting and operation of a rotating milling tool. This milling tool is not shown in figure 5. Thus, at the location of this sliding shoe, a milling operation can be performed by means of a rotating milling tool, simultaneously with forming a portion of the profiled edge area of the panel by means of the cutting knife 9. The one part of the sliding shoe can support the panel by means of its sliding surface for engaging the rotary cutter, while the other part of the sliding shoe can support the panel by means of its sliding surface after the intervention of the rotary cutting tool. The present invention is by no means limited to the embodiments described above, but such sliding and / or pressure shoes, cutters, continuous milling machine, and panel manufacturing methods can be realized without departing from the scope of the present invention.
    权利要求:
    Claims (17)
    [1]
    Cutting device for a continuous milling machine (1) for profiling one or more edges (2) of panels (3), the cutting device comprising a sliding shoe (4) or pressure shoe (5), the relevant sliding shoe (4) or pressure shoe (5) has a sliding surface or sliding surfaces (6) for passing over a surface (7-8) of a panel (3) to be milled, said sliding shoe (4) or pressure shoe (5) being provided with at least one cutting blade ( 9) for machining the panel (3), this cutting blade maintaining a fixed position during this machining; and wherein the sliding shoe (4) or the pressure shoe (5) is provided to support the surface of the panel to be milled by means of its sliding surface or sliding surfaces (6) on a rotating milling tool (11) performing a milling operation on the edge of the panel.
    [2]
    Cutting device according to claim 1, wherein the slide shoe (4) or pressure shoe (5) comprises a one-piece part; wherein this one-piece part includes a sliding surface or surfaces (6) to support the panel (3) both before and after the position where the rotary milling tool (11) can perform the milling operation on the edge of the panel (3).
    [3]
    The cutting device according to claim 1, wherein the sliding shoe (4) or the pressure shoe (5) comprises two separate parts, the first part including a sliding surface (6) to support the panel for the position where the rotary milling tool (11) perform milling operation on the edge of the panel (3); and wherein the second part includes a sliding surface (6) to support the panel after the position where the rotary milling tool (11) can perform the milling operation on the edge of the panel (3).
    [4]
    Cutting device according to any of the preceding claims, wherein the cutting device includes a rotary milling tool (11) for milling the panel at the sliding shoe (4) or the pressure shoe (5).
    [5]
    Cutting device as in any of the preceding claims, wherein the position of the cutting blade with respect to the said sliding surface (6) is made adjustable, preferably at least in a direction V perpendicular to the surface (7-8) of the the relevant panel (3) either transverse / perpendicular to the sliding surface (6), and / or at least in a direction H in the plane of the relevant panel or in the sliding surface (6).
    [6]
    Cutting device as in claim 5, wherein said position is adjustable by means of one or more adjusting screws (25).
    [7]
    Cutting device as in any one of the preceding claims, wherein the said cutting blade (9) has a cutting surface (10) forming an angle (A) with a surface (7-8) of the panel (3) to be milled. .
    [8]
    A continuous milling machine (1) for profiling one or more edges (2) of panels (3), the continuous milling machine comprising a cutting device according to any one of claims 1 to 7; and wherein the continuous milling machine includes positions with additional rotary milling tools for machining the edge of the panel that can be machined by the cutter.
    [9]
    Method for manufacturing panels, using a continuous milling machine as in claim 8, wherein these panels (3) have a profiled edge region at one or more edges (2), wherein the shaping of the respective profiled edge region is done by means of at least one or several of the additional rotary milling tools (11) are performed, and wherein the panel (3) to be milled is placed with its surface (7-8) over the sliding surface or surfaces (6) of the sliding shoe (4) or pressure shoe (5) characterized in that the method comprises the step of forming a portion of the respective profiled edge region by means of the cutting knife (9) provided on the said sliding shoe (4) or pressure shoe (5).
    [10]
    A method as in claim 9; wherein at the location of the said sliding or pressure shoe (4-5) a milling operation is performed on the relevant edge (2) by means of the rotating milling tool (11), the sliding surface or surfaces (6) of the sliding shoe (4) ) or of the pressure shoe (5) supporting the surface of the panel to be milled on the rotating milling tool (11).
    [11]
    The method of claim 10, wherein the rotary milling tool engages the edge of the panel so that the milling tool rotates away from the position of the cutting blade while engaging the edge of the panel.
    [12]
    A method according to any of claims 9-11; wherein the said profiled edge region at the location of at least one of the major surfaces (7-8) of the panel (3) has a chamfer (13), for example in the form of a bevel, the surface of the respective chamfer (13) being at least is formed in part, but preferably exclusively, by the aforementioned cutting blade (9).
    [13]
    A method according to any one of claims 10 to 12; wherein said profiled edge region comprises coupling means (16) with which it can cooperate with one or more edges (2) of similar panels (3); wherein the coupling means is formed at least in part by the milling operation with the rotary milling tool (11).
    [14]
    A method according to any of claims 9-13; wherein said panels are provided on at least one of the main surfaces (7-8) with a coating, preferably formed by a transparent thermoplastic layer (14).
    [15]
    A method according to any of claims 9-14; wherein said panels (3) exhibit a substrate material (15) comprising mineral constituents, preferably having a mineral constituent content of at least 40% by weight, and more preferably at least 60% by weight.
    [16]
    A method according to any of claims 9-15; wherein said panels (3) exhibit a substrate material (15) comprising thermoplastic material, preferably rigid polyvinyl chloride (PVC), namely, preferably PVC having a plasticizer content below 5 phr.
    [17]
    A method according to any of claims 9-16; wherein at least three or four, or Just three or four rotary milling tools (11), and the said cutting blade (9) are employed to form the said profiled edge region.
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    同族专利:
    公开号 | 公开日
    CN113490582A|2021-10-08|
    BE1027029A1|2020-08-28|
    EP3930976A1|2022-01-05|
    BE1027083B1|2020-09-24|
    BE1027083A1|2020-09-18|
    WO2020174358A1|2020-09-03|
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    法律状态:
    2021-01-15| FG| Patent granted|Effective date: 20201120 |
    优先权:
    申请号 | 申请日 | 专利标题
    BE20195121A|BE1027083B1|2019-02-26|2019-02-26|Sliding or pressure shoe for a continuous milling machine and method for manufacturing panels|CN202080016739.5A| CN113490582A|2019-02-26|2020-02-24|Cutting device for a continuous milling machine and method for manufacturing panels|
    EP20711322.6A| EP3930976A1|2019-02-26|2020-02-24|Cutting device for a continuous milling machine and method for the manufacture of panels|
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