• 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:
    "Brush making machine" A brush making machine (1) has at least one movable functional element (7) and a device (8) for reducing vibrations caused by the movement of the functional element (7). The device (8) is designed for active absorption and / or active damping of vibrations (Figure 1). 2013/0583
    公开号:BE1021579B1
    申请号:E2013/0583
    申请日:2013-09-06
    公开日:2015-12-15
    发明作者:Guido Sommer
    申请人:Zahoransky Ag.；
    IPC主号:
    专利说明:

    The invention relates to a machine for manufacturing brushes comprising at least one movable functional element and a device for reducing the vibrations caused by the movement of the functional element as well as a method for reducing the vibrations caused. by the movement of a functional element of a brush making machine.
    In the case of brush making machines as well as in mechanical engineering, the problem is that vibrations which can affect the reliable operation of the machine or the quality of the objects to be manufactured are due to moving parts. This is why we try to eliminate, compensate or reduce these vibrations. Brush making machines have many moving parts that perform cyclic movements, oblique or right angle movements being possible between two elements in addition to the linear movements. There are also modules that over time lose or gain mass, for example material cassettes or the brush body storage magazine. The bandwidth of the eigenfrequency of such a module thus changes continuously during the processing process.
    Various ways of reducing vibration of a machine are already known which are used in part in a combined way even for brush making machines.
    For example, the mass at rest can be increased. By increasing the mass at rest relative to the moving mass, it is possible to reduce vibrations. The largest space needed for this purpose for the machine however is a disadvantage. Conversely, moving mass can be decreased.
    If the moving masses are reduced, the vibratory excitation force is also reduced and the amplitude of the vibrations is less. In order to ensure that force transmission is still guaranteed, special high stiffness materials may have to be used or the geometry of moving parts, for example, must be optimized by FEM analyzes. It is also possible to modify the properties of the material at rest, since some materials such as cast iron, for example, absorb vibrations better than others.
    It is also possible to produce for a movement in one direction a counter-movement in the opposite direction. This can also be done through masses reduced to the corresponding transformation geometries. Such a device for producing compensatory movements is described for example in EP 1 561 397 B1. The advantage of such a device is that the masses also adapt to modified speeds. The disadvantage however lies in the necessary building space with additional modules.
    It is also known the possibility of decoupling several modules by damping elements to prevent vibration transmission by passive damping. The disadvantage in this case, however, lies in the lower positioning accuracy. During vibrations in a known bandwidth range, vibration absorbers which act against vibration are also used. In addition, it is most often used large masses that are coupled through springs. The disadvantage of this passive damping is the limitation to a bandwidth of the moment of the vibrations.
    The aim is to provide a brush making machine comprising a vibration reducing device of the type mentioned at the beginning, for which the vibrations which occur can be reduced and the disadvantages of the measures used up to now to reduce the vibrations can be eliminated or at least reduced.
    The object is achieved according to the invention because the device is designed for active absorption and / or active damping of vibrations. .
    Active absorption or active damping has not been used so far in the field of brush making machines. By active absorption or active damping, however, it is possible to obtain an optimized result of the reduction of the vibrations with a smaller size of the vibration reduction device. The absorption or damping properties can in particular be adjusted and can, when the conditions change, for example when the mass of the material cassette or the brush body storage magazine changes, be adapted dynamically to the actual conditions.
    A preferred embodiment provides that the device has at least one sensor for detecting the vibrations to be reduced, a data processing device for processing the sensor data and at least one actuator element, which can be controlled according to the data. sensor, for a counter-movement of the functional element.
    Both the sensor and the actuator element can be coupled directly to the functional element, for example an insertion tool, a positioning tool or a material cassette or indirectly via an element coupled to the functional element or the functional elements, for example to a functional unit carrying a plurality of functional elements or to a support part to which the functional element (s) is (are) coupled.
    When there are in particular several functional elements that respectively cause different vibrations, an indirect coupling of the sensor and the actuator element to a functional unit carrying the various functional elements or to a support part may be useful for detecting with a single device the resulting vibration, to produce by means of said at least one actuator element a corresponding counter-vibration and to reduce or eliminate the original vibrations.
    It is advantageous according to the type of brush making machine that said at least one sensor is an acceleration sensor or a displacement sensor.
    With an active damping device, it may be appropriate for the at least one actuator element to be a stepless damper. The vibrations can thus be eliminated. If vibrations of a certain bandwidth occur, the damper can be adjusted accordingly. If the bandwidth of the vibrations changes, the properties of the damper can be modified and adapted accordingly.
    It is particularly advantageous that the damping and absorption properties of the device can be adjusted. As a result, the properties of the brush-making machine can be variably controlled and adapted to the current processing situation.
    For example, in the case of an insertion tool, the suspension can be set to be hard before the insertion process via an active damper and the system can thus be stabilized in terms of vibratory technique so that the tongue that inserts the tuft of bristles into the receiving hole of the brush body can reach the hole accurately. When inserted even, or when the tongue reaches the brush body, the system can be released, a softer damping can be adjusted. This can prevent parts of the brush suspension or tool drive from being damaged by too rigid couplings. On the other hand, in the case of a positionable machine part, soft damping can be adjusted during the positioning movement to allow faster positioning. After positioning, the damping can be strengthened to achieve the desired damping properties to reduce vibration during the treatment process.
    Said at least one actuator element may in particular be an element based on electrorheological liquid or magnetorheological liquid.
    Such systems allow the adaptation of damping or absorption properties in milliseconds. By changing an electric or magnetic field, the particles in a carrier liquid form chains that change the flow properties of the carrier liquid.
    Systems based on electrorheological liquids have, compared with those based on magnetorheological liquids, the advantage of faster reaction times. In addition, no wear occurs in electrorheological liquid systems. The invention also relates to a method for reducing vibrations caused by the movement of a functional element of a brush making machine. The invention is characterized, as regards the method, in that the vibrations are reduced by active absorption and / or active damping of the vibrations. This results in the advantages already mentioned in the explanation of the machine for making brushes according to the invention.
    Exemplary embodiments of the brush making machine according to the invention are explained below in more detail on the basis of the drawings.
    It is shown, in part diagrammatically, in FIG. 1 a brush making machine comprising a device for reducing vibrations,
    Fig. 2 a brush making machine comprising a device for reducing vibrations arranged differently with respect to FIG. 1,
    Fig. 3 a brush making machine comprising controllable dampers for reducing vibration and FIG. 4 a brush making machine comprising a functional unit positionable relative to a base support.
    A brush-making machine designated in its entirety by 1 has, according to FIG. 1, a support part 2 which rests on the ground 4 by means of adjustment feet 3. The support part 2 is connected via connecting elements 5 to a functional unit 6 which has a plurality of functional elements 7. The functional elements 7 represent different moving parts of the brush making machine 1, for example insertion tools or positioning devices for brush bodies . The different vibrations generated by the functional elements 7 are transmitted to the functional unit 6. Depending on the hardness of the connecting elements 5, these vibrations between the functional unit 6 and the support part 2 are damped or transmitted to the part. 2. Part of the transmitted vibrations is also eliminated by the adjusting feet 3 relative to the ground 4. The remaining vibrations are absorbed by a device 8 and eliminated or at least reduced. The device 8 has for this purpose sensors 9 which are arranged on the support portion 2 and which detect the remaining vibrations. The sensors 9 are acceleration sensors in the embodiment shown in Fig. 1. The sensors 9 are connected to a data processing device 10 to which the sensor data is transmitted. In a sensor data record 11, the sensor data is optionally prepared and transmitted to a controller 12 which calculates a counter-vibration to eliminate or reduce the detected vibrations. The output signals of the data processing device 10 are transmitted via an amplifier 13 to actuator elements 14 which are connected to the support part 2. The actuator elements 14 vibrate so that they oppose each other. the vibrations of the support portion 2 and compensate and eliminate or at least reduce them. Thanks to this active absorption of vibrations, a quieter operation of the different functional elements 7 is possible and therefore a more reliable and safer operation of the whole machine for making brushes 1. The space required for the device 8 serving to reduce the vibration is very minimal.
    FIG. 2 shows a variant of the brush making machine 1 of FIG. 1 in which the sensors 9 and the actuator elements 14 are not arranged on the support part 2 but on the functional unit 6 and the vibrations occurring on the the functional unit 6 are thus directly detected and eliminated or reduced.
    In the brush making machine 1 according to FIG. 3, the sensors 9 are designed as displacement sensors and are arranged between the functional unit 6 and the support part 2. The functional unit 6 and the support part 2 are connected to each other via relatively flexible connecting elements 5. The sensor data is also sent to a data processing device 10 and is prepared and processed there. The controller 12 of the data processing device 10 calculates appropriate damping factors for the actuator elements 14 designed as controllable dampers, arranged between the support portion 2 and the functional unit 6, and the controller data is sent to the controllers 14. actuator elements 14 via the amplifier 13. With this active damping, the vibrations of the functional unit 6 and therefore of the various functional elements 7 are also reduced, possibly entirely eliminated. When changes in the vibration bandwidth occur, the controllable active dampers are adjusted accordingly.
    In the brush making machine 1 according to FIG. 4, the functional unit 6 is mounted on the support part 2 by means of guide rails 16 guided in guide carriages 15 as well as a control unit. 17. The stroke control unit 17 has a threaded spindle 18 which is driven by a motor 21 via a clutch 19 and a transmission 20 to be able to position the functional unit 6 with respect to the support portion 2. The motor 21 is controlled by a control unit 22 comprising a position control 23 and a servo-regulator 24.
    The position control 23 for the motor 21 is further connected to the controller 12 of the data processing device 10 for controlling the actuator elements 14 designed as shock absorbers. The damping of the actuator elements 14 can thus be reduced when the functional unit 6 is positioned with a race control unit 17. When the functional unit 6 reaches the desired position, the damping can be reinforced or else it can be adjusted value necessary to dampen vibrations occurring during operation of the brush making machine 1.
    While the vibration reduction takes place by active vibration absorption for the brush making machine 1 shown in Figs. 1 and 2, the vibration reduction takes place by active damping for the brush making machine shown in Figs. 3 and 4. It is also clear in the schematic representations that less space is needed for this purpose. However, very good vibration reduction results can be obtained even when conditions change or when vibrations occur in different or changing bandwidth ranges.
    权利要求:
    Claims (7)
    [1]
    claims
    A brush making machine (1) comprising at least one movable functional element (7) and a device (8) for reducing the vibrations caused by the movement of the functional element (7), characterized in that the device ( 8) is designed for active absorption and / or active damping of vibrations.
    [2]
    Brush making machine according to claim 1, characterized in that the device (8) has at least one sensor (9) for detecting vibrations to be reduced, a data processing device (10) for processing the data of sensor and at least one actuator element (14) controllable according to the sensor data for a counter-movement of the functional element (7).
    [3]
    3. Brush making machine according to claim 2, characterized in that said at least one sensor (9) is an acceleration sensor or a displacement sensor.
    [4]
    4. Brush making machine according to claim 2 or 3, characterized in that said at least one actuator element (14) is a controllable damper.
    [5]
    5. Brush making machine according to any one of claims 1 to 4, characterized in that the damping properties or vibration absorption of the device (8) are adjustable.
    [6]
    6. Brush making machine according to any one of claims 1 to 5, characterized in that said at least one actuator element (14) is an element based on electrorheological liquid or magnetorheological liquid.
    [7]
    A method for reducing vibrations caused by the movement of a functional element (7) of a brush making machine (1), characterized in that the vibrations are reduced by active absorption and / or active vibration damping.
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1561397A2|2004-02-06|2005-08-10|Firma G.B. BOUCHERIE, naamloze vennootschap|Device for compensating the vibrations of a brush manufacturing machine|
    CN102494071A|2011-11-15|2012-06-13|江苏大学|Passive vibration isolation system for dampers of ceilings and sheds|
    US20140246820A1|2011-11-15|2014-09-04|Jiangsu University|Passive skyhook and groundhook damping vibration isolation system|
    CN102588497A|2011-12-12|2012-07-18|山东大学|Electromagnetism and magnetorheological fluid mixed shock absorber|
    GB2287901B|1994-03-29|1998-05-06|Boucherie Nv G B|A brush making machine|
    GB2289236B|1994-05-09|1997-08-06|Boucherie Nv G B|A brush making machine|
    CN1724892A|2005-05-20|2006-01-25|上海微电子装备有限公司|Precision vibration damping and locating device|
    CN201061345Y|2007-03-29|2008-05-21|葛杰|Modularization hair-planting machine capable of moving in high speed and pinpoint location|
    CN100572849C|2007-09-30|2009-12-23|北京航空航天大学|Isolation mounting|
    CN102305264B|2011-08-24|2013-12-18|华中科技大学|Ultralow frequency precision active damper|
    法律状态:
    2020-08-06| MM| Lapsed because of non-payment of the annual fee|Effective date: 20190930 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE201210017740|DE102012017740A1|2012-09-07|2012-09-07|Brush manufacturing machine, has oscillation reduction device for active suppression and/or damping of oscillations caused by movement of functional element, and actuator element for generating counter movement of functional element|
    DE102012017|2012-09-07|
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