• 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:
    The invention is concerned with improvement in the field of making brushes. For this purpose, the brush manufacturing machine (1) is proposed, which in addition to the tensioning drum (2) has the supporting device (7). The support device (7) is adapted to support free portions (8) of the tensioning drum (2) clamped brush bodies (6) during rotation of the tensioning drum (2) about its axis of rotation (R) and thus protect against centrifugal force damage.
    公开号:BE1025971B1
    申请号:E2018/5592
    申请日:2018-08-27
    公开日:2019-09-03
    发明作者:Robert Steinebrunner；Guido Sommer；Stephan Graf
    申请人:Zahoransky Ag；
    IPC主号:
    专利说明:

    Brush manufacturing machine
    The invention relates to a brush production machine with a clamping drum and at least one processing tool, the clamping drum having a plurality of clamping positions for brush bodies which are distributed around an axis of rotation of the clamping drum.
    Brush manufacturing machines of this type are known from practice and are used, for example, to produce and process brushes, in particular toothbrushes.
    The brush bodies of the toothbrushes are usually arranged with their brush heads at the clamping positions of the tensioning drum, clamped there and finally processed with one or more processing tools.
    It is customary in this case to fill the brush bodies with bundles of bristles using a stuffing tool and thus to generate the bristle fields present on the brush head, for example in the case of toothbrushes.
    The tensioning drums used have three or at least four flanks on which the tensioning locations for brush bodies are arranged distributed around the axis of rotation of the tensioning drum.
    By rotating the clamping drum around its axis of rotation, the individual clamping positions with the brush bodies clamped thereon can be brought into different positions on the brush production machine. Each position can be assigned one or more processing tools or handling units, for example for the automated insertion of brush bodies or also for the removal of processed brushes.
    BE2018 / 5592
    For example, it is conceivable to feed the brush bodies to the clamping positions of the tensioning drum when the tensioning drum is in a first position. An input station of the brush manufacturing machine can then be located at this point.
    For example, a tamping station of the brush manufacturing machine can be arranged at a 90 degree offset, on which a tamping tool of the brush manufacturing machine is provided in order to tuft bristle bundles onto the brush bodies spanned at the clamping positions of the tensioning drum.
    Due to the ever shorter cycle times in the manufacture of brushes and toothbrushes in particular, the tensioning drum is moved at comparatively high speeds when the position of the tensioning stations is changed. Large positive and negative accelerations and corresponding angular velocities can occur. These accelerations expose the brush bodies, particularly if they are toothbrush bodies, to have a head region and a handle region and a neck region which is comparatively slim in between, and are subjected to high mechanical alternating loads. Due to the alternating loads, toothbrush bodies in the neck area between their head area and their grip area can be damaged or even break off.
    The object of the invention is therefore to provide a brush manufacturing machine of the type mentioned at the outset, in which the risk of damage to the clamped brush bodies can be reduced or even avoided during highly dynamic machining.
    To solve this problem, a brush making machine is used
    BE2018 / 5592 proposed the means and features of the independent claim. To achieve the object, it is proposed in particular in the brush production machine mentioned at the outset that the brush production machine has a support device which is set up to remove free sections of brush bodies, for example the aforementioned grip areas of toothbrush bodies, which are clamped at the clamping positions of the clamping drum, at least during one Support rotation of the tension drum about its axis of rotation against centrifugal forces caused by rotation acting on the free sections of the brush bodies. In this way, it can be prevented that the free sections of the brush bodies are deflected and damaged too much due to the centrifugal forces that occur during a rapid rotation of the tensioning drum. With the help of the support device, the free sections can be supported and thus the brush bodies can be protected against excessive loads and the associated damage even at high angular speeds and angular accelerations.
    It can be particularly advantageous if the support device is set up to limit an oscillation amplitude of the free, that is to say not clamped, sections of the brush bodies when the tension drum rotates.
    In this context it can be advantageous if the support device or at least parts thereof can be moved together with the tensioning drum and / or with the tensioning positions of the tensioning drum. In this way, individual elements, in particular holding elements, of the support device can be assigned to individual clamping positions of the clamping drum.
    For this purpose, the support device can be arranged on the tension drum. This is particularly the case on a drive device of the brush manufacturing machine for the side facing away from the tensioning drum
    BE2018 / 5592 the tension drum. Thus, the support device can be arranged close to the free sections of the brush body spanned in the use position on the clamping positions.
    The support device can advantageously have at least one holding element, in particular one holding element for each clamping position, for supporting a free section of a brush body. The holding element can preferably be advanced from a starting position into a holding position in which it is set up to support at least one free portion of a brush body. With this holding element, the free section of a clamped brush body, in particular a grip area of a clamped toothbrush body, can be supported during processing and especially when the tensioning drum rotates about its axis of rotation. This at least when the holding element is in its holding position relative to the clamping position on which the respective brush body is spanned.
    It can be particularly advantageous if the holding elements bear against the free sections of the brush bodies in the holding position. The vibration amplitude which the free sections of the brush bodies execute during a rotation or positioning of the tensioning drum can thus be minimized. In this way, the brush bodies can be protected particularly effectively from damage. It can also be advantageous if the holding elements can be moved together with the tensioning drum and / or with the tensioning positions. In this way, a structurally particularly simple assignment between the holding elements and the tensioning positions of the tensioning drum can be realized.
    In one embodiment of the brush production machine, the support device can have one for each flank of the tensioning drum
    BE2018 / 5592
    Have retaining hooks. Each of the holding hooks can comprise one or two or more holding legs as holding elements. A holding hook with its two holding elements in the form of the holding legs can thus be assigned to two clamping positions which are arranged together on one side of the clamping drum. It can be particularly preferred if the holding hook is pivotable about a pivot axis in order to move the holding elements, in this case the at least one holding leg of the holding hook, from an initial position into a holding position and back. The pivot axis of the holding hook can be aligned transversely or at right angles to the axis of rotation of the tensioning drum.
    In a further embodiment of the brush manufacturing machine, the support device can have at least one holding clip, preferably one holding clip for each clamping position, as the holding element. This holding clip can be moved from a starting position into a holding position. For this purpose, the holding clip can particularly preferably be pivotable about a pivot axis aligned parallel to the axis of rotation or about a pivot axis congruent with the axis of rotation of the tensioning drum. It is also advantageous if the retaining clip is arranged on the tension drum.
    In a further embodiment of the brush production machine, the clamping device can have at least one holding slide, preferably one holding slide for each clamping position, as at least one holding element. This at least one holding slide can be moved between a starting position and a holding position along or parallel to the axis of rotation of the tensioning drum.
    In one embodiment of the brush production machine, the at least one holding slide can comprise a support leg. This
    BE2018 / 5592
    Support leg can also have a support recess into which a free end of a clamped brush body, which can be arranged in particular on the free section of the brush body, engages when the holding slide is positioned in its holding position.
    In particular on such a brush manufacturing machine, on which brush bodies are to be stuffed with bundles of bristles, it can be expedient if the clamping positions on the clamping drum can each be rotated about a pivot axis which is oriented transversely or at right angles to the axis of rotation.
    In this way, the individual bristle bundles can optionally be introduced into the clamped brush body at different angles and / or orientations. In addition, other processing, for example grinding the brush bodies, is also possible in a variable manner.
    It can be particularly expedient if the brush production machine has a tamping tool as at least one processing tool. With this stuffing tool, bundles of bristles can be stuffed into the clamped brush bodies.
    For thorough machining of the clamped brush bodies, it can be expedient if the tensioning drum is preferably automatically adjustable in three axes, in particular at right angles to one another.
    For this purpose, the brush manufacturing machine can have a drive device for adjusting the tensioning drum, the tensioning positions and / or also for the support device and its at least one holding element.
    BE2018 / 5592
    Exemplary embodiments of the invention are described in more detail below with reference to the drawing. However, the invention is not restricted to these exemplary embodiments. Further exemplary embodiments of the invention result from a combination of the features of individual or more claims with one another and / or in a combination of individual or more features of the exemplary embodiments. They show in a partially highly schematic representation:
    Fig. 1 2 shows a perspective view of a first embodiment of a brush production machine with a support device on a tensioning drum of the brush production machine, the support device, as deliverable holding elements, each having a holding bracket pivotably mounted on the tensioning drum, Fig. 2 a further embodiment of a brush manufacturing machine in perspective view, here a support device is arranged on the tensioning drum of the brush manufacturing machine, which has T-shaped holding hooks as holding elements, and Fig. 3 a further embodiment of a brush manufacturing machine in perspective view, the support device of this brush manufacturing machine as holding elements offset parallel to the axis of rotation of the tensioning drum has longitudinally displaceably arranged holding slides with holding legs, each of which is equipped with a holding recess into which the clamped brush bodies engage with their free, unclamped sections when the holding slides are arranged in their holding position.
    BE2018 / 5592
    All of the three figures show a brush manufacturing machine, generally designated 1. Each of the brush manufacturing machines 1 has a tension drum 2 and is also equipped with a processing tool 3, which is a tamping tool 3 in the exemplary embodiments shown in the figures.
    Each of the tension drums 2 has several, here a total of eight tensioning locations 4. The eight clamping stations 4 are arranged in pairs evenly distributed around an axis of rotation R of the clamping drum 2. On each of the four flanks 5 of the clamping drum 2, two clamping locations 4 for brush bodies 6 are thus arranged.
    Each of the brush manufacturing machines 1 also includes a support device 7. The support devices 7 are set up to support free sections 8 of the brush bodies 6, which are clamped at the clamping positions 4 of the clamping drum 2, at least during a rotation of the clamping drum 2 about its axis of rotation R against centrifugal forces caused by rotation which act on the free sections 8 of the brush bodies 6 during the rotation of the tension drum 2.
    The free sections 8 of the brush bodies 6 are grip areas 8 of the brush bodies 6 present here as toothbrush bodies. The grip sections or grip areas 8 merge into a head area or head section 10 of the brush bodies 6 via a neck area 9. The brush bodies 6 are clamped with their head section 10 at the clamping locations 4 of the clamping drum 2. Due to the highly dynamic rotation of the tension drum 2 about its axis of rotation R when changing the position of the clamped brush bodies 6, the centrifugal forces act primarily on the free sections 8 of the brush bodies 6. This can result in the relatively slim neck regions 9 of the clamped brush bodies being exposed to high loads that may cause damage or damage
    BE2018 / 5592 can cause a complete breakage of the brush body 6 in the neck area 9.
    The support devices 7 can be moved with their respective tension drums 2 and also with the tensioning places 4 arranged on the tension drums 2. The support devices 7 are arranged on the tension drums 2. The support devices 7 with their holding elements 13, which are described below, are fixed to a drive device 11 of the brush manufacturing machine 1 for the side 12 of the tensioning drums 2 facing away from the tensioning drums 2. Each of the support devices 7 shown in the figures has an deliverable holding element 13 for each free section 8 of a brush body 6 for each clamping position 4 of the clamping drum 2 to which it is assigned. When the holding elements 13 have assumed their holding position on the brush bodies 6, they can rest against the free sections 8 of the brush bodies 6 in order to support the brush bodies 6 particularly effectively. The holding elements 13 can be moved together with the respective tensioning drum 2 and also with the tensioning stations 4, so they can be rotated about their axis of rotation R with the tensioning drum 2. The three figures now show different embodiments of support devices 7 with different holding elements 13.
    In the exemplary embodiment of a support device 7 shown in FIG. 1, it is equipped with a plurality of retaining clips 14, which function as retaining elements 13. Each of the holding clips 14 can be moved from a starting position, which can be seen in the two holding clips 14 on the upper flank 5 of the tensioning drum 2 in FIG. 1, into a holding position. The holding clamps 14, which are offset by 90 degrees to the open holding clamps 14, are in this holding position and thus support the free sections 8 of the brush bodies 6 during a change of position and rotation of the tensioning drum 2 and
    BE2018 / 5592 their axis of rotation R.
    Each of the retaining clips 14 is arranged on the tensioning drum 2 so as to be pivotable about a pivot axis S aligned parallel to the axis of rotation R.
    FIG. 2 shows a further embodiment of a support device 7. In this embodiment of the support device 7, a holding hook 15 is provided for each flank 5 of the tensioning drum 2. Each of the holding hooks 15 has two holding legs 16, which act as holding elements 13 of the support device 7 and protrude from a pivot axis S of the respective holding hook 15. The holding hooks 15 can be pivoted about their pivot axes S in order to move the holding elements 13, that is to say here the holding legs 16, from an initial position into a holding position and back. According to the exemplary embodiment shown in FIG. 2, these pivot axes S are aligned at right angles to the axis of rotation R of the tensioning drum 2.
    FIG. 3 finally shows a third exemplary embodiment of a support device 7. This support device 7 has a holding slide 17 for each of the clamping positions 4 of the clamping drum 2. This holding slide 17 can itself function as a holding element 13 or, as shown in FIG. 3, can each comprise a support leg 18 as a holding element 13. Each of the holding slides 17 can be displaced longitudinally with its support leg 18 parallel to the axis of rotation R of the tensioning drum 2 in order to be able to be moved between a starting position and a holding position.
    Each of the support legs 18 is provided with a support recess 19. As illustrated in FIG. 3, the toothbrush bodies 6 with the free ends of their free sections or grip areas 8 can be in the holding position
    BE2018 / 5592 located holding slides 17 engage in these support recesses 19 on the support legs 18. In this way, an oscillation amplitude of the free sections 8 of the brush bodies 6 is effectively limited even at a high angular velocity or a strong positive or negative acceleration when the tensioning drum 2 rotates about its axis of rotation R. The brush bodies 6 can thus be effectively protected against damage even at high angular speeds and angular accelerations of the tensioning drum 2.
    In one embodiment of the brush production machine, the clamping locations 4 on the clamping drum 2 are also each rotatable about a pivot axis. These pivot axes can be aligned, for example, transversely or at right angles to the axis of rotation R of the tensioning drum 2.
    The tensioning drums 2 of the brush manufacturing machines 1 shown in FIGS. 1 to 3 are adjustable in three axes aligned at right angles to one another. The adjustment of the tensioning drum 2 can take place automatically since the brush manufacturing machine 1 has the drive device 11 already mentioned for adjusting the tensioning drum 2. This drive device 11 can also be set up by means of appropriate transmission means to adjust the support device 7 and its holding elements 13, 14, 15, 16, 17 and 18.
    1 to 3 each has a material box 20 with three material channels 20a for receiving a supply of loose bristle filaments. Different bristle filaments can be arranged in each of the material channels 20a. The bristle filaments held in each of the material channels 20a can differ with regard to their color, their material, their cross section, their length or also with regard to further parameters
    Differentiate BE2018 / 5592.
    Each of the brush manufacturing machines 1 is also equipped with a bundle divider 21. Each of the bundle dividers 21 has a compartment notch 22 with which it can be moved past a bundle removal point of the material box 20 in one plane of movement. The material boxes 20 are arranged with their three material channels 20a pivotable about a pivot axis 23 on a frame 28 of the brush manufacturing machine 1. The pivoting movement of the material box 20 is indicated in FIGS. 1 to 3 by the double arrow on the material box 20. In this way, the three different material channels 20a can be positioned by pivoting or rotating the material box 20 about its pivot axis 23 such that their open channel ends reach the bundle removal point and bristle bundles 26 can be removed from them. The bundle removal point, like the plane of movement, remains unchanged with respect to the frame 28.
    The bundle divider 21 is designed as a so-called circular arch divider and has the compartment notch 22 on a side facing the material box 20. With this compartment notch 22, it is pivoted past an open channel end of a material channel 20a, which is arranged adjacent to the bundle removal point (see double arrow on the bundle divider 21 in FIGS. 1 to 3), in order to take out individual bristle bundles 26 from the stock of loose bristle filaments. For this purpose, the bundle divider 21 is arranged on the frame 28 of the brush manufacturing machine 1 designed as a brush tamping machine via a pivot bearing and can be pivoted about the axis of the pivot bearing.
    A bristle bundle 26 positioned in the compartment notch 22 can be moved from the material box 20 to the bundle divider 21
    BE2018 / 5592
    Darning tool 3 are handed over. Each of the brush manufacturing machines 1 each comprises a wire feed device 24, via which the anchor wire 25 can be fed to the tamping tool 3. Individual wire anchors are separated from the anchor wire 25. 5 Using a pusher cable 29 of the tamping tool 3, the
    Wire anchors together with bundles of bristles 26 by the
    Bundle dividers 21 are transferred to the tamping tool 3, plugged into bundle receiving holes 27 on the brush bodies 6 and fastened to the brush bodies 6.
    The invention is concerned with improvements in the field of
    Manufacturing brushes. For this purpose, the brush manufacturing machine 1 is proposed, which has the support device 7 in addition to the tensioning drum 2. The support device 7 is set up to hold free sections 8 15 of brush bodies 6 clamped on the tensioning drum 2
    Rotation of the tensioning drum 2 to support its axis of rotation R and thus protect it from damage caused by centrifugal force.
    BE2018 / 5592
    LIST OF REFERENCE NUMBERS
    Brush manufacturing machine
    tensioning drum
    processing tool
    unload station
    Flanks of 2
    brush body
    Support device free sections of 6
    neck
    head area
    Drive device of the drive device side facing away from FIG. 2
    retaining element
    retaining clip
    retaining hook
    holding leg
    holding slide
    support legs
    supporting recess
    material box
    20a material channels
    separating device
    compartment notch
    Swivel axis of 20
    wire feeder
    anchor wire
    bristle bundles
    Bundle receiving holes
    frame
    Stößerzunge
    BE2018 / 5592
    R axis of rotation of 2
    S swivel axis of 13, 14, 15
    权利要求:
    Claims (13)
    [1]
    Expectations
    1. Brush manufacturing machine (1) with a tensioning drum (2) and at least one processing tool (3), wherein the tensioning drum (2) has a plurality of clamping locations (4) for brush bodies (6) arranged distributed around an axis of rotation (R) of the tensioning drum (2) , characterized in that the brush manufacturing machine (1) has a support device (7) which is set up to free sections (8) of brush bodies (6) which are clamped at the clamping positions (4) of the clamping drum (2), at least during a rotation of the tensioning drum (2) about its axis of rotation (R) against centrifugal forces acting on the free sections (8) of the brush bodies (6).
    [2]
    2. Brush manufacturing machine (1) according to claim 1, characterized in that the support device (7) with the tensioning drum (2) and / or with the tensioning locations (4) of the tensioning drum (2) is also movable.
    [3]
    3. Brush manufacturing machine (1) according to claim 1 or 2, characterized in that the support device (7) on the tension drum (2) is arranged, in particular on a drive device (11) of the brush manufacturing machine (1) for the tension drum (2) facing away (12) the tension drum (2).
    [4]
    4. Brush manufacturing machine (1) according to one of claims 1 to 3, characterized in that the support device (7) at least one, preferably each clamping location (4) of the tensioning drum (2) each have an deliverable holding element (13) for a free section ( 8) has a brush body (6).
    [5]
    5. Brush manufacturing machine (1) according to claim 4, characterized
    BE2018 / 5592 characterized in that the at least one holding element (13) lies in the holding position on the free sections (8) of the brush body (6) and / or that the at least one holding element (13) with the tensioning drum (2) and / or with the Clamping places (4) is also movable.
    [6]
    6. Brush manufacturing machine (1) according to one of claims 1 to
    5, characterized in that the supporting device (7) for each flank (5) of the tensioning drum (2) has a holding hook (15) with at least one holding leg (16), preferably with two holding legs (16), as holding element (e) ( 13), preferably with the holding hook (15) being pivotable about a pivot axis (S) in order to move the holding elements (13) from an initial position into a holding position and back, in particular with the pivot axis (S) being transverse or perpendicular to the axis of rotation ( R) the tension drum (2) is aligned.
    [7]
    7. Brush manufacturing machine (1) according to one of claims 1 to
    6, characterized in that the support device (7) has at least one holding clip (14), preferably one holding clip (14) for each clamping position (4), as the holding element (13), which can be moved from an initial position into a holding position, in particular wherein the retaining clip (14) is pivotable about a pivot axis (S) aligned parallel to the axis of rotation (R) or about a pivot axis (S) congruent with the axis of rotation (R) of the tensioning drum (2) and / or is arranged on the tensioning drum (2) ,
    [8]
    8. Brush manufacturing machine (1) according to one of claims 1 to
    7, characterized in that the support device (7) has at least one holding slide (17), preferably one holding slide (17) for each clamping position (4), as the holding element (13)
    BE2018 / 5592 between an initial position and a holding position along or parallel to the axis of rotation (R) of the tensioning drum (2) is displaceable.
    [9]
    9. Brush manufacturing machine (1) according to one of claims 1 to 8, characterized in that the holding slide (17) comprises a support leg (18), wherein the support leg (18) has a support recess (19).
    [10]
    10. Brush manufacturing machine (1) according to one of claims 1 to 9, characterized in that the clamping positions (4) on the clamping drum (2) are each rotatable about a pivot axis which is transverse or perpendicular to the axis of rotation (R) of the clamping drum (2) is aligned.
    [11]
    11. Brush manufacturing machine (1) according to one of claims 1 to 10, characterized in that the at least one processing tool (3) is a stuffing tool (3).
    [12]
    12. Brush manufacturing machine (1) according to one of claims 1 to 11, characterized in that the tensioning drum (2) in three, in particular at right angles to each other, axes, preferably automatically, is adjustable.
    [13]
    13. Brush manufacturing machine (1) according to one of claims 1 to 12, characterized in that the brush manufacturing machine (1) has a drive device (11) for adjusting the tensioning drum (2), the tensioning positions (4) and / or for the support device (7) having.
    类似技术:
    公开号 | 公开日 | 专利标题
    DE4209935C2|1994-06-09|Adjustable device with grippers
    BE1022828B1|2016-09-15|Brush manufacturing device, brush body holder and method of making a brush
    BE1025971B1|2019-09-03|Brush manufacturing machine
    DE19745024A1|1999-04-15|Brush-producing machine with multiple compartment magazine
    DE4425231B4|2005-07-07|Method and device for profiling bristle fields
    DE3146183A1|1983-05-26|"BRUSH PRODUCTION MACHINE AND METHOD FOR PRODUCING BRUSHES"
    BE1023106B1|2016-11-23|Method for mechanical sharpening of bristles and grinding device
    EP0158936A2|1985-10-23|Method and apparatus for mechanically hackling bast fibres such as those originating from flax or hemp
    DE19526933B4|2009-06-10|Apparatus for processing portions of a bristle field of brushes
    DE19631341A1|1997-02-06|Mfr of abrasive flap wheels using corona of recesses - involves automatic positioning of abrasive flaps in flag-like manner in corona of recesses between pins in circular plates to form flap wheel
    DE1486118A1|1969-04-30|Machine for labeling objects, especially bottles
    DE1552370A1|1970-07-23|Device for processing rotating workpieces
    BE1025538B1|2019-04-08|Brush filling machine
    BE1025910B1|2019-09-12|Method and device for producing brushes and / or brushes
    DE102019115905A1|2020-12-17|Drafting unit with a load carrier and load carrier for a drafting unit
    DE102019000670A1|2020-07-30|Transport and loading device
    DE102018102742B4|2021-05-12|Tensioning device, brush manufacturing machine and method for tensioning a bristle carrier
    DE4425230A1|1996-01-18|Brush mfr. machine with feeder transporting brush bodies or bristles
    DE454010C|1927-12-27|Combing machine
    DE102018120237A1|2020-02-20|Handling device and brush manufacturing machine with handling device
    DE19644233A1|1998-04-30|Brush manufacturing machine
    DE3616736A1|1987-11-19|Apparatus for polishing the blade projection of knives
    DE422317C|1925-11-28|Machine for the production of brushes with a workpiece carrier designed as a drum
    DE2911611C2|1986-04-30|Machine for assembling veneer strips or the like.
    DE454588C|1928-01-12|Method and device for mechanical cleaning of vegetable fibers
    同族专利:
    公开号 | 公开日
    BE1025971A1|2019-08-27|
    DE102017123900A1|2019-04-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3936818A1|1989-11-04|1991-05-08|Zahoransky Anton Fa|Tension device for holding brush bodies - has tension jaws holding different sized or shaped brushes through engagement on flat sides|
    US20100289286A1|2009-05-14|2010-11-18|Zahoransky Ag|Gripping pliers|
    EP3058845A1|2015-02-23|2016-08-24|GB Boucherie NV|Brush production device, brush body holder and method for producing a brush|
    法律状态:
    2019-10-14| FG| Patent granted|Effective date: 20190903 |
    2021-05-26| MM| Lapsed because of non-payment of the annual fee|Effective date: 20200831 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017123900.6|2017-10-13|
    DE102017123900.6A|DE102017123900A1|2017-10-13|2017-10-13|Brush manufacturing machine|
    [返回顶部]