• 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 band saw blade (1), in particular for cutting metal, with a plurality of successive teeth (2, 3, 4, 5) with tooth tips (6, 7, 8, 9), wherein a tooth tip (6, 7, 8, 9 ) of a tooth (2, 3, 4, 5) connects a tooth back (10, 11, 12, 13), said band saw blade (1) Vorschneidezähne (2) and Nachschneidezähne (3, 4) and stabilizing teeth (5), each with a a wider tooth back (13) than the Vorschneidezähne (2) and Nachschneidezähne (3, 4) and by the distance of the tooth tips (9) of two adjacent stabilizing teeth (5) a division of the stabilizing teeth (5) is formed, wherein the band saw blade (1 ) has a variable pitch of the stabilizing teeth (5).
    公开号:AT510911A1
    申请号:T19202010
    申请日:2010-11-18
    公开日:2012-07-15
    发明作者:Harald Sehrschoen；Gerhard Sieglhuber
    申请人:Fill Gmbh；
    IPC主号:
    专利说明:

    4 * »» ············································································································································································································
    The invention relates to a band saw blade, in particular for cutting metal, with several successive teeth with a tooth tip, wherein a tooth tip of a tooth is followed by a tooth back, the band saw blade Vorschneidezähne and Nachschneidezähne.
    Furthermore, the invention relates to a band saw device.
    In conventional band saw blades, in particular band saw blades for cutting metal, undesired vibrations of the saw blade may occur when a block is cut. These vibrations decrease after deeper penetration into the block and almost completely come to a standstill. The vibrations of the band saw blade at the gate cut create undesirable grooves and grooves in the gate area of the block.
    In EP 2 060 356 A2 a saw blade of the type mentioned above with Vorschneidzähnen and Nachschneidezähnen which aulweisen trapezoidal rake surfaces disclosed The teeth can be arranged in the known embodiment in a variable pitch.
    From DE 3 300 7Θ1 A1, a saw blade has become known, which should achieve an improved cutting behavior with regard to undesired vibrations. For this purpose, the known saw blade small and large teeth with compressed tips and a different Zahnteiiung, so different distances between adjacent teeth aut
    However, a disadvantage of the known embodiments is that they can not be used to achieve optimum chamfering behavior of the band saw blade and suppression of vibrations in the initial cutting phase. N2010 / 30100 »···· -2-
    It is therefore an object of the present invention, even in the initial phase of cutting a block, in particular a metal block, to suppress unwanted vibrations of the band saw blade.
    This object is achieved with a band saw blade of the aforementioned type according to the invention that the band saw blade stabilizing teeth, each with a wider tooth back than the Vorschneidezähne and Nachschneidezähne and formed by the distance of the tooth tips of two adjacent stabilizing teeth a division of the stabilizing teeth, wherein the band saw blade a having variable pitch of the stabilizing teeth.
    By connecting a stabilizing tooth, which is wider at its back, than that in the next adjacent teeth and by a variable pitch can be suppressed vibrations very well. The inventive solution, the emergence of resonant vibrations of the band saw blade is very well prevented even when cutting a block, since a good damping of the band saw blade is achieved by the stabilizing teeth.
    The vibration characteristics of the band saw blade can be further improved by forming a second pitch between the tooth tips of two adjacent teeth, the band saw blade having a variable second pitch.
    An embodiment of the invention, which is an improved vibration suppression improvement, is that the band saw blade has at least two sets of teeth, the first group of teeth having at least one roughing tooth, at least one stabilizing tooth, and at least one regrooving tooth second group of teeth has only Nachschneide- and Vorschneidezähne.
    A further advantageous development of the invention provides that the two groups are separated from each other by a tooth-free path.
    The two groups can repeat themselves in alternating order, but in this case the distance between two consecutive equal tooth sequences should be as large as possible. In Ideaifall there is no repetition of the same tooth sequences on the band saw blade. N2010 / 30100 • ·
    it · * ·· M t I 3-
    A particularly smooth running of the band saw blade during the gating phase can be achieved in that the first group has a toothed sequence in which a stabilizing tooth between a roughing tooth and a Nachschneidzahn is arranged. In this connection, it is particularly advantageous if the first group consists of three teeth, namely a precutting tooth, a stabilizing tooth and a regrooving tooth.
    Another variant of the invention, which is advantageous with respect to the vibration behavior of the bath saw blade, provides that the second group has a subgroup with a toothed sequence in which a precutting tooth is arranged between two adjacent regrooving teeth.
    Furthermore, in view of improving the quality of the cut, it is very advantageous if the subgroup of the second group is followed by a regrooving tooth.
    A particularly good cutting behavior of the band saw blade can be achieved in that at least one tooth of the first and / or second group has a lower height than the other teeth of the respective group. It is particularly advantageous if a stabilizing tooth of the first group and / or a Nachschneidzahn the second group has a lower height than the other teeth of the respective group,
    An optimal stepping behavior can be achieved by the front teeth, the stabilizing teeth and the Nachschneidezähne each have sloping from Ehren back, lateral shoulders.
    According to an embodiment of the invention that is easy to implement, the shoulders may be formed by bevels, which may have smooth surfaces.
    A particularly advantageous in terms of quality of cut variant of the invention provides that the shoulders of Vorschneidezähne are drawn lower than the shoulders of the Nachschneidzähne, the shoulders of the Nachschneidzähne are in turn drawn lower than the shoulders of the stabilizing teeth. In this case, it is additionally of particular advantage if the shoulders of the pre-cutting teeth, the regrooving teeth and the stabilizing teeth have the same pitch angle.
    According to a variant of the invention which is particularly advantageous with regard to the driving characteristics, the regrooving tooth adjoining the subgroup of the second N2010 / 30100 -4-
    Group have a narrower Zahnrticken aulweisen than him next adjacent Nachschneidezahn the subgroup.
    The properties of the band saw blade with regard to the suppression of vibrations and improvement of the cutting properties can be further improved in that the stabilizing teeth each have a larger base width than the pre-cutting teeth and the Nachschneidezähne. According to an advantageous development of this embodiment, the Nachschneidezähne may each have a larger base width than the Vorschneidezähne. It has turned out to be particularly advantageous with regard to the cutting properties if two immediately succeeding regrooving teeth have different base widths.
    The above object can also be solved with a band saw device of the type mentioned, which has a band saw blade according to the invention.
    The invention together with further advantages will be explained below with reference to some non-limiting embodiments, which are illustrated in the drawings.
    Each shows in a highly schematically simplified representation:
    1 shows a section of a first variant of a band saw blade according to the invention;
    FIG. 2 shows a section of a second variant of the band saw blade according to the invention from FIG. 1; FIG.
    Fig. 3 are cross-sections through teeth of the portion of the band saw blade of Fig. 1;
    4 shows a view of the cross sections from FIG. 3 in the viewing direction IV in FIG. 1;
    5 shows a section of a further variant of a band saw blade according to the invention;
    Fig. 6 Examples unterschiediiche tooth profiles, as they can be used in the band saw blade according to the invention;
    7 shows a tooth of a band saw blade according to the invention in more detail;
    8 is a front view of the tooth of FIG. 7 and N2010 / 301 oo.
    Fig. Θ is a plan view of the tooth of Fig. 7.
    By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and are to be transferred to the new situation mutatis mutandis when a change in position. Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions.
    According to FIG. 1, a band saw blade 1 according to the invention, which is provided in particular for cutting metal, has a plurality of successive teeth 2, 3, 4, 5 with tooth tips 6, 7, 8, 9 or cutting edges. To a tooth tip 6, 7, 8, 9 and cutting edge of a tooth 2,3, 4, 5, a tooth back connects 10,11,12,13. In this document, the term tooth back is understood to mean the free surface adjoining the tooth tip or cutting edge. In this case, the cutting edge represents the transition from a rake face to the tooth back 10, 11, 12, 13 or free face. The tooth ridge 10, 11, 12, 13 starts tangentially at the cutting edge. At this point, it should also be mentioned that the terms "rake surface" and "chipboard " used interchangeably in this document. The band saw blade 1 has pre-cutting teeth 2 and Nachschneidezähne 3, 4. According to the invention, the band saw blade 1 further stabilizing teeth 5 with a wider tooth back 13 than the Vorschneidezähne 2 and Nachschneidezähne 3 and 4. Due to the distance of the tooth tips 9 of two adjacent stabilizing teeth 5 a division of the stabilizing teeth 5 is formed. The band saw blade 1 has a variable pitch of the stabilizing teeth 5. Thus, the stabilizing teeth 5 are arranged at different distances from each other on the band saw blade 1.
    As can be seen from FIG. 1, the spacing of the teeth 6, 7, 8, 9 of two adjacent teeth 2, 3, 4, 5 forms a second pitch t, wherein the band saw blade 1 can have a variable second pitch t. Thus, the distances between adjacent teeth 2, 3,4, 5 vary over the length of the band saw blade 1. N2010 / 30100 -6-
    Furthermore, it is advantageous in terms of smoothness of the band saw blade 1, when a width d of the tooth is a multiple of the height h or tooth depth, ie the distance of the tooth tip to the tooth base, each of the teeth 2, 3, 4, 5 The width d is measured in the direction of the longitudinal extension of the band saw blade 1. A ratio of height h to width d of a tooth 2, 3, 4, 5 of at least 1: 5 has proved to be particularly advantageous, and this ratio in principle can also be greater or smaller.
    It can further be seen from FIG. 2 that the band saw blade 1 can have at least two groups G1, G2 of teeth 2, 3, 4, 5. The first group G1 of teeth 2, 5, 3 may, for example, have a precutting tooth 2, a stabilizing tooth 5 and a regrooving tooth 3. The second group G2 of teeth 2, 3, 4 may have, for example, only aftercutting teeth 3, 4 and precutting teeth 2. The two groups G1 and G2 can be separated from one another by a tooth-free path s. Furthermore, the two groups G1, G2 can repeat themselves in alternating order. An exemplary scheme for the construction of the band saw would thus G1, s, G2, s, G1, s, G2, etc., but also the distances of the teeth-free distance s between the groups may change, so also with respect to the tooth-free Range gives a variable pitch of the band saw blade 1. In order to avoid the repetition of identical sequences of teeth, ie tooth sequences which are identical both with respect to the order of the teeth and with respect to the spacing between adjacent teeth, on the band saw blade 1, the intra-group division of successive groups G1 or G2 can also be avoided vary. That the first group G1 on the band saw blade may have a different intra-group pitch, ie other distances between the teeth 2, 3, 5, than a subsequent group G1. Thus, all groups G1 can have different group internal divisions from each other. The same applies of course to the groups G2. Ideally, the same sequence of teeth on the band saw blade 1 is not repeated or at very large intervals.
    As can also be seen from FIGS. 1 and 2, the first group G1 can autonomously arrange a toothed sequence in which a stabilizing tooth 5 is arranged between a pre-cutting tooth 2 and a re-cutting tooth 3.
    The first group G1 may in this exemplary case of three teeth 2, 3, 5, namely a pre-cutting tooth 2, a stabilizing tooth 5 and a Nachschneidzahn 3, be formed. The second group G2 may in turn be a subgroup G3 with a N2010 / 30100
    Have tooth sequence, in which a Vorschneidezahn 2 is disposed between two adjacent Nachschneidzähnen 3.4, wherein the recut tooth 4 can connect to the subgroup G3 of the second group G2.
    One, several or all Nachschneidezähne 3 and 4 of the second group G2 may have a lower height than the Vorschneidzahn 2. The StabiJisierungszahn 5 may have a lower height than the Vorschneidzahn 2. In particular, the stabilizing tooth 5 may also have a lower height than the aftercutting teeth 3 and 4, as shown by way of example in FIG. 5.
    As can be seen from Figure 3, the Vorschneidezähne 2, the stabilizing teeth 5 and the Nachschneidezähne 3 and 4 respectively from their backs 10,11,12, 13 sloping, lateral shoulders 14, 15,16, 17, 18 have. The shoulders 14,15,16,17 may be formed by bevels or other cut shapes. As can also be seen from the illustrations, the shoulders 14 of the precutting teeth 2 can be pulled deeper than the shoulders 15, 16 of the regrooving teeth 3, 4, whereby the shoulders 15, 16 of the regrooving teeth 3, 4 can again be pulled deeper than the shoulders 17 of the stabilizing teeth 5, so closer to a main body of the band saw blade 1 lie. Through the leading edges of the back 10,11,12,13 a cutting edge is formed.
    Furthermore, the stabilizing teeth 5 each have a larger base width b than the precutting teeth 2 and the Nachschneidzähne 3,4. In addition, the Nachschneidezähne 3, 4 each have a larger base width b than the Vorschneidezähne 2. Furthermore, it is also possible for two directly consecutive regrooving teeth 2, 4 to have different base widths b. In summary, according to the preferred embodiment of the invention, the stabilizing teeth have the largest base width b, followed by the Nachschneidezähnen 3 and 4, wherein the Vorschneidezähne 2 may have the smallest base width b.
    In this way, optimum chip removal from the chip channel can be achieved. Base width b in this document means the width of the edge of the rake face opposite the cutting edge.
    As can be seen from FIG. 4, the shoulders 14 of the precutting teeth 2, the regrooving teeth 3, 4 and the stabilizing teeth 5 can also have a similar pitch angle. N2010 / 30100 -8-
    Successive teeth 2, 3, 4, 5 can also have different chip and clearance angles. The clearance angle is understood to mean the angle at which the tooth back 10, 11, 12, 13 starts tangentially at the cutting edge. In Fig. 7, the clearance angle with the reference character α and the rake angle, which is formed by the cutting face and a normal to the tooth base, provided with the reference symbol γ.
    Also with respect to the clearance angle and flank angle, the teeth 2, 3,4, 5 can differ. The clearance angles and flank angles can also be selected according to given requirements. In FIG. 8, the free-cutting angle of the tooth flank is identified by the reference symbol y and in FIG. 9 the flank angle is indicated by the reference symbol x.
    Instead of the trapezoidal teeth 2, 3, 4, 5 shown in Fig. 4, rounded teeth, i. Teeth with a rounded cutting edge, can be used. In the case of a tooth with a round spine, the width of the spine corresponds to the shortest distance between opposing areas in which the spine merges into the tooth flanks.
    In addition, as shown in Fig. 6, limited or asymmetric teeth can be used. For cabinets, the teeth 3, 4, 5 can be mutually bent out of the saw blade plane by twisting and bent away from a base body 19 of the band saw blade.
    Also, several or old teeth 2, 3,4, 5 in the chipboard have a chip breaker. Furthermore, several or all teeth 2, 3,4, 5 chipbreaker have.
    A bandsaw device according to the invention can be realized by using the band saw band according to the invention.
    The embodiments show possible embodiments of the band saw blade according to the invention, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual embodiments are possible with each other and this possibility of variation due to the teaching of technical action representational invention in the skill of those skilled in this technical field. There are therefore also all possible embodiments, N2010 / 30100 -9- * # I · * "• · are possible by combinations of individual details of the illustrated and described embodiment variant, includes the scope of protection.
    For the sake of order, it should finally be pointed out that for a better understanding of the construction bandsaw blade of this or its components have been shown partly unevenly and / or enlarged and / or reduced in size. N2010 / 30100 ft. * Ft * * * ft * * * * * * * * * * * # * ft * ft * * ft * * * * * * ft *
    Reference Numbers 1 Band saw blade 2 Pre-cutting tooth 3 Recessing tooth 4 Recutting tooth 5 Stabilizing tooth 6 Tooth tip 7 Tooth tip 8 Tooth tip 9 Tooth tip 10 Tooth back 11 Tooth back 12 Tooth back 13 Tooth shoulder 14 Shoulder 15 Shoulder 16 Shoulder 17 Shoulder 18 Shoulder 19 Main body 20 Tooth chest 20 t Divide b Base width G1 Group G2 Group G3 Group s Tooth-free segment d Width N2010 / 30100
    权利要求:
    Claims (19)
    [1]
    1. band saw blade (1), in particular for cutting metal, with a plurality of successive teeth (2, 3, 4.5) with tooth tips (6, 7, 8, 9), wherein to a tooth tip (6, 7, 8, 9) of a tooth (2, 3, 4, 5) adjoins a tooth back {10, 11, 12, 13), wherein the band saw blade (1) has pre-cutting teeth (2) and regrooving teeth (3, 4) characterized in that the band saw blade (1) stabilizing teeth (5) each having a wider tooth back (13) than the Vorschneidezähne (2) and Nachschneidezähne (3, 4) and by the distance of the tooth tips (9) of two adjacent Stabllisierungszähne (5) a division of the stabilizing teeth (5) is formed, wherein the band saw blade (1) has a variable pitch of the stabilizing teeth (5).
    [2]
    2. Bandsaw blade according to claim 1, characterized in that the distance of the tooth tips {6, 7, 0, 9) of two adjacent teeth (2, 3,4, 5) forms a second pitch (t), wherein the band saw blade (1 ) has a variable second division (t).
    [3]
    3. Bandsaw blade according to claim 1 or 2, characterized in that the band saw blade (1) at least two groups (G1, G2) of teeth (2, 3,4, 5), wherein the first group (G1) of teeth (2 , 3,5) has at least one precutting tooth (2), at least one stabilizing tooth (5) and at least one regrooving tooth (3), the second group (G2) of teeth (2, 3, 4) only aftercutting teeth (3, 4) and Vorschneidezähne (2).
    [4]
    4. Bandsaw blade according to claim 3, characterized in that the two groups (G1, G2) by a tooth-free path (s) are separated from each other.
    [5]
    5. Bandsaw blade according to one of claims 3 or 4, characterized in that the first group (G1) comprises a toothed train in which a Stabiiisierungszahn (5) between a roughing tooth (2) and a Nachschneidzahn (3) is arranged. N2010 / 30100 ♦ ·

    -2-
    [6]
    6. band saw blade according to one of claims 3 to 5, characterized in that the first group (G1) of teeth of three teeth (2, 3, 5), namely a pre-Schnefdezahn (2), a Stabilisterungszahn (5) and a Nachschneidzahn (3), consists
    [7]
    7. Bandsaw blade according to one of claims 3 to 6, characterized in that the second group (G2) has a subgroup (G3) with a toothed train in which a Vorschneidzahn (2) between two adjacent Nachschneidezähnen (3, 4) is arranged,
    [8]
    8. Bandsaw blade according to claim 7, characterized in that adjoining the subgroup (G3) of the second group (G2) is a Nachschneidzahn (4).
    [9]
    9. Bandsaw blade according to one of claims 3 to 8, characterized in that at least one tooth (3, 4, 5) of the first group (G1) and / or second group (G2) has a lower height than the other teeth of the respective group (G1, G2).
    [10]
    10. Bandsaw blade according to claim 9, characterized in that a stabilizing tooth (5) of the first group (G1) and / or a Nachschneidzahn (3,4) of the second group (G2) has a lower height than the other teeth (2, 3 , 4) of the respective group {G1, G2).
    [11]
    11. Bandsaw blade according to one of claims 3 to 10, characterized in that the Vorschneidezähne (2), the stabilizing teeth (5) and the Nachschneidezähne (3, 4) each of their backs (10,11, 12,13) sloping, lateral Have shoulders (14,15,16, 17, 18).
    [12]
    12. Bandsaw blade according to claim 11, characterized in that the shoulders (14, 15, 16, 17) are formed by chamfers.
    [13]
    Band saw blade according to claim 11 or 12, characterized in that the shoulders (14) of the precutting teeth (2) are drawn deeper than the shoulders (15, 16) of the NZ010 / 30100 -3- Nachschneidzähne {3,4), wherein the Shoulders (15, 1Θ) of the Nachschneidezähne (3, 4) in turn are pulled deeper than the shoulders (17) of the stabilizing teeth (5).
    [14]
    14. Bandsaw blade according to one of claims 11 to 13, characterized in that the shoulders (14) of the precutting teeth (2), the Nachschneidezähne (3, 4) and the StabilIsierungszähne (5) have a same pitch angle.
    [15]
    15. Band saw blade according to one of claims 9 to 14, characterized in that the subsequent to the subgroup (G3) Nachschneidezahn (4) of the second group (G2) has a wider tooth back, as the next adjacent Nachschneidzahn the subgroup (G3).
    [16]
    16. Bandsaw blade according to one of claims 1 to 15, characterized in that the stabilizing teeth (5) each have a larger base width (b) than the Vorschneidezähne (2) and the Nachschneidezähne (3, 4).
    [17]
    17 band saw blade according to claim 16, characterized in that the Nach-schnetdezähne (3, 4) each have a larger base width (b) than the Vorschneidezähne (2).
    [18]
    18. Bandsaw blade according to claim 17, characterized in that two directly successive Nachschneidezähne (3,4) have different base widths (b).
    [19]
    19. Band saw apparatus, characterized in that it comprises a band saw blade (1) according to one of claims 1 to 18 Fiil society m.b.H. d "TO Anwätte ® Partner Partner Attorney at Law N2010 / 30100
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    同族专利:
    公开号 | 公开日
    WO2012065205A1|2012-05-24|
    AT510911B1|2013-03-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    AT383984B|1985-04-22|1987-09-10|Thoeress Dietmar|Mill saw blade|
    EP0610647A1|1993-01-13|1994-08-17|WIKUS-Sägenfabrik Wilhelm H. Kullmann|Saw blade with body and unstaggered teeth arrangement|
    EP0949034A2|1998-04-10|1999-10-13|Sandvik Aktiebolag|Sawblade with unequal distance beween tooth groups|
    EP2060356A2|2007-11-15|2009-05-20|WIKUS-Sägenfabrik Wilhelm H. Kullmann GmbH & Co. KG.|Saw blade with a carrier and teeth with cutting edges|US10363619B2|2015-11-02|2019-07-30|Black & Decker Inc.|Reciprocating saw blade|US853255A|1904-07-26|1907-05-14|William A Miller|Saw.|
    SE411722B|1978-01-12|1980-02-04|Sandvik Ab|MADE TOOLS|
    JPS6150735B2|1982-01-13|1986-11-05|Amada Co Ltd|
    DE9219128U1|1992-01-10|1998-04-16|Kullmann Wikus Saegenfab|Saw blade|JP6337169B1|2017-02-24|2018-06-06|株式会社アマダホールディングス|Hard insert band saw blade|
    法律状态:
    2019-01-15| PTA| After opposition partly revoked|Effective date: 20181206 |
    2021-07-15| MM01| Lapse because of not paying annual fees|Effective date: 20201118 |
    优先权:
    申请号 | 申请日 | 专利标题
    AT19202010A|AT510911B1|2010-11-18|2010-11-18|BAND SAW BLADE|AT19202010A| AT510911B1|2010-11-18|2010-11-18|BAND SAW BLADE|
    PCT/AT2011/050032| WO2012065205A1|2010-11-18|2011-11-18|Band saw blade|
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