• 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 relates to a device for monitoring the quality of a moving linear textile material, especially a yarn (7) having a bush (8), so a housing with gap, in which at least one image sensor (1) is mounted, the at least one radiation source (3) is assigned. In the inner space of the bush (8) at least one temperature sensor (4) and / or at least one heating element (6) is mounted.
    公开号:CH707084B1
    申请号:CH01689/13
    申请日:2013-10-01
    公开日:2018-05-15
    发明作者:Sloupensky Jiri；Kousalik Pavel；Richter Jan
    申请人:Rieter Cz Sro；
    IPC主号:
    专利说明:

    description
    TECHNICAL FIELD The invention relates to the device for monitoring a moving linear textile material, in particular a yarn, which has a socket in which at least one image sensor is mounted, to which at least one radiation source can be assigned or assigned. A bushing in the sense of this application is a housing with a gap, which provides a space for the moving textile material, in particular yarn, to pass through.
    PRIOR ART Known devices, for example according to CZ 299 684, EP 1 319 926 A1 or CZ PV 2009-634, for monitoring the quality of a moving linear textile material, in particular a yarn on the textile machines, have a number of electronic ones Components that generate heat loss during their operation. These components are usually installed in a closed socket that at least partially isolates them from the environment. As a result, the temperature in different parts of this socket changes unevenly during their operation and especially during commissioning. The properties of the individual components of these devices are also partly dependent on the temperature, which of course can influence the value of the output signal of the device and thereby also the reliability and reproducibility of its function.
    The components of the device for monitoring the quality of the linear textile material, the properties of which change in connection with the temperature, are mounted in the socket of the device due to the required structural arrangement in mutually different and relatively distant locations, and therefore they are before all unevenly heated at the time of the start of operation of the respective facility. This can cause instability in their sensitivity for a certain period of time from the start of operation, and thereby also cause certain changes in the output signal of the device which do not faithfully correspond to the input signal, that is to say the image of the running linear textile material. Above all, this has a negative effect on the calibration of the device, which is usually carried out during its manufacture and further at the start of operation. For this reason, in order to achieve the top parameters, it is necessary to temper the respective device for a certain time so that the most stable working conditions can be achieved from the point of view of the temperature of its individual components.
    Certain shortcomings of the known devices for monitoring the quality of the running linear textile material are therefore caused by a compromise between the quality of the results of the monitoring and the loss of time, which is the time to warm all components to their working temperature.
    The aim of the invention is to shorten the time necessary to reach the operating temperature of the device or at least some of its components and thus to enable the operational monitoring of the quality of the running linear textile material and the achievement of the reliable results of the monitoring without loss of time is forced by a long time necessary to reach the working temperature of the facility or due to uncertainty whether the respective working temperature has been reached.
    Statement of the nature of the invention The object of the invention is achieved by the device for monitoring the quality of a moving linear textile material, especially a yarn, the essence of which is that at least one temperature sensor and / or or at least one heating element is attached. This is in the inner space of the socket either
    a) at least one temperature sensor is attached and the radiation source is an LED diode, current supply to the LED diode being corrected as a function of the temperature measured by the temperature sensor in such a way that temperature-dependent parameter changes with respect to the image sensor are compensated; or
    b) at least one heating element is attached and it is operated for a predetermined period of time when the device is started up; or
    c) at least one temperature sensor and at least one heating element are attached, the at least one heating element being operated when the device is started up until a predetermined working temperature of the image sensor is reached, which is determined on the basis of measured values of the at least one temperature sensor, the radiation source preferably being an LED Diode is and even after reaching the predetermined working temperature of the image sensor, current supply to the LED diode is corrected as a function of the temperature measured with the temperature sensor in such a way that temperature-dependent parameter changes with respect to the image sensor are compensated for, and preferably the at least one heating element in the event of a sharp reduction in the Ambient temperature is put into operation for a certain time.
    This gives an active control of the process of heating the individual components for tracking the yarn quality by monitoring the current temperature of the critical components, especially by active
    CH 707 084 B1
    Generation of heat to accelerate the heating of these components to the working temperature. Furthermore, active compensation of the light output for irradiating the yarn to be scanned and active compensation of the signal from the measuring element as a function of the current temperature of the sensor are achieved.
    To bring the temperature sensor quickly into the working state and / or to accelerate the heating, it is advantageous if the temperature sensor and / or the heating element is or is in contact with an image sensor.
    A further improvement is achieved by integrating the temperature sensor and / or the heating element on a semiconductor chip of the image sensor.
    The heating element is advantageously formed by a semiconductor structure, specifically a structure of an optical chip that does not have any functions.
    Explanation of the drawings [0011] An exemplary embodiment of the device according to the invention for monitoring the quality of a moving linear textile material is shown schematically in the accompanying drawings, which show:
    1 is a schematic diagram of the individual elements of the device with an image sensor,
    Fig. 2 shows a section of the device with an image sensor in the socket, which is perpendicular to the path of the moving linear textile material and
    Fig. 3 shows a section of the device with an optical line sensor and with two optical sensors, which scan the reflected light, in the socket, which is perpendicular to the path of the moving linear textile material.
    Exemplary embodiments of the invention In the exemplary embodiment according to FIG. 1, the device according to the invention for monitoring the quality of a moving linear textile material has an image sensor 1, in the embodiment shown a line image sensor, against which a radiation source 3, for example a light source, is arranged is. A lens 2 or another optical element is attached between the radiation source 3 and the image sensor 1, which serves for the alignment of the rays which emanate from the radiation source 3 into a bundle of the rays running parallel to one another. Between the lens 2 and the image sensor 1, a space for the passage of the linear textile material 7 is formed, which is a yarn in the embodiment shown. The image sensor 1 is connected via a bidirectional bus 51 to a microprocessor 5 or known electronic circuits for its control and processing and / or the evaluation of the signal of the image sensor 1. The radiation source 3 is coupled to the output 52 of the microprocessor 5 for regulating the radiation.
    In the vicinity of the image sensor 1 or directly on the body of the image sensor 1, a temperature sensor 4 and a heating element 6 are mounted. The output of the temperature sensor 4 is coupled to the input 53 of the microprocessor 5 for monitoring the temperature and the heating element 6 is coupled to the output 54 of the microprocessor 5 for temperature control.
    All components of the described exemplary embodiment according to the invention or at least some of them can be integrated into an integrated semiconductor customer circuit ASIC.
    When starting up the device according to the invention, the microprocessor 5 takes the heating element 6 into operation, which begins to heat the image sensor 1 to an operating temperature. Simultaneously or subsequently, the temperature sensor 4 begins to track the temperature of the image sensor 1 and to supply the information about its value to the microprocessor 5 via the input 53. At the same time, the current through the light-emitting LED diode 3 is adjusted to the measured temperature of the sensor by means of the output 52 of the microprocessor in such a way that the influence of the current temperature on the output signal of the image sensor 1 is compensated. After the working temperature of the image sensor 1 has been reached, the microprocessor 5 ends the operation of the heating element 6, the operation of the sensor 4 for monitoring the temperature of the image sensor 1 also continuing during the operation of the device, with possible sudden changes in the temperature of the image sensor 1 followed, the current through the light-emitting LED diode is continuously compensated and the heating element 6 is put into operation for a certain time when the ambient temperature drops sharply.
    In the embodiment not shown, the respective device has no temperature sensor, but only a heating element. In this embodiment, the time in which the image sensor 1 reaches its working temperature after the start-up of the device and the start of the operation of the heating element 6 is empirically determined in advance, and the microprocessor 5 ends the operation of the heating element 6 after this time.
    In another embodiment, not shown, the device has only one temperature sensor 4 and no heating element 6. In this embodiment, the current through the LED diode is continuously corrected on the basis of the measured temperature in such a way that the sensor parameters, which are temperature-dependent, are compensated for.
    CH 707 084 B1 In the exemplary embodiment according to FIG. 2, the device shown in FIG. 1 is mounted in the socket 8. The activation of the individual elements of the device is the same as in the embodiment described above. 3 shows the placement of the temperature sensor 4 and the heating element 6 in the vicinity of the rear side of the image sensor 1 and the formation of the column 81 for the passage of the linear fiber structure 7 in the socket 8. In this embodiment too, the temperature sensor 4 and / or the heating element 6 can be attached in contact with the body of the image sensor 1. The socket 8 is transparent in the space of the column 81 in the locations of the placement of the radiation source 3 and the image sensor 1.
    In Fig. 3 the device for monitoring the cross section and the color homogeneity of the yarn or another linear textile structure 7 according to CZ PV 2009-634 is shown, which is arranged in the socket 8. A column for the passage of the linear textile structure 7 is formed in the bushing 8, in which a tracking space of the moving linear textile material 7 is formed. The light radiation source and the image sensor 1 are arranged opposite each other in the socket 8, which is coupled to the microprocessor 5 via a bidirectional bus 51 in the same way as in the embodiment according to FIGS. 1 and 2. With respect to the radiation source 3 on the same side of the monitoring space, two optical sensors 11 are mounted in the socket 8, which scan the reflected radiation from the surface of the moving linear textile structure 7, the axes of the sensors 11 reflecting the reflected radiation in the direction of the radiation emitted by the radiation source 3 are inclined.
    In the illustrated embodiment according to FIG. 3, a temperature sensor and a heating element 6 are attached to the rear side of the image sensor 1, which, similarly to the previous embodiments, can also be attached elsewhere in the socket 8 in the vicinity of the image sensor 1. 3 or at least some of them can be integrated in an integrated semiconductor customer circuit ASIC.
    In all versions, the temperature sensors 4 or heating elements 6 can be integrated directly on the semiconductor chip of the image sensor 1. In this case, the heating element 6 can be formed by a semiconductor structure of the chip 1, specifically possibly a parasitic (function-free) structure, which was created during the production of the semiconductor chip of the image sensor 1.
    The exemplary embodiments according to the invention are given for a clear explanation of the arrangement and the function, their purpose is not to limit the protection defined by the claims.
    The stabilization of the temperature of the image sensors 1 for tracking the quality of a moving linear textile material, especially a yarn, contributes to the greater accuracy and repeatability of the measurement. The heating element 6 for heating the inner space of the socket 8 of the device, possibly direct heating of the image sensors 1, 11 accelerate the bringing of the monitoring means into the working state.
    权利要求:
    Claims (6)
    [1]
    claims
    1. Device for monitoring the quality of a moving linear textile material, in particular a yarn (7), which has a socket (8) in which at least one image sensor (1) is mounted, to which at least one radiation source (3) is assigned, thereby characterized in that in the inner space of the socket (8) either
    a) at least one temperature sensor (4) is attached and the radiation source is an LED diode, current supply to the LED diode being corrected as a function of the temperature measured with the temperature sensor such that temperature-dependent parameter changes with respect to the image sensor (1) are compensated ; or
    b) at least one heating element (6) is attached and this is operated for a predetermined period of time when the device is started up; or
    c) at least one temperature sensor (4) and at least one heating element (6) are attached, the at least one heating element (6) being operated when the device is started up until a predetermined working temperature of the image sensor (1) is reached, which is based on measured values of the at least one a temperature sensor is determined.
    [2]
    2. Device according to claim 1, in which in the inner space of the socket (8) at least one temperature sensor (4) and at least one heating element (6) are attached, the radiation source being an LED diode and also after reaching the predetermined working temperature of the Image sensor (1) a current supply to the LED diode depending on the temperature measured with the temperature sensor is corrected such that temperature-dependent parameter changes with respect to the image sensor (1) are compensated.
    [3]
    3. Device according to claim 1 or claim 2, in which in the inner space of the socket (8) at least one temperature sensor (4) and at least one heating element (6) are fitted, the at least one heating element (6) when the Ambient temperature is put into operation for a certain time.
    [4]
    4. Device according to one of claims 1 to 3, characterized in that the temperature sensor (4) and / or the heating element (6) are or is in contact with an image sensor (1) of the at least one image sensor (1).
    [5]
    5. Device according to one of claims 1 to 4, characterized in that the temperature sensor (4) and / or the heating element (6) on a semiconductor chip of the image sensor (1) are or is integrated.
    [6]
    6. Device according to claim 5, characterized in that the heating element (6) is formed by a semiconductor structure of the chip of the image sensor (1).
    CH 707 084 B1
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    同族专利:
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    CH707084A2|2014-04-15|
    CN103852476A|2014-06-11|
    CZ304010B6|2013-08-14|
    DE102013110814B4|2021-07-29|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CH686803A5|1993-09-09|1996-06-28|Luwa Ag Zellweger|Method and apparatus for detecting foreign substances in a textile test material.|
    CZ286113B6|1998-01-14|2000-01-12|Rieter Elitex A. S.|Method of determining thickness and/or homogeneity of a moving linear formation and apparatus for making the same|
    DE19830395A1|1998-07-08|2000-01-13|Schlafhorst & Co W|Process for the contactless measurement of strand-like fiber material|
    AUPP704098A0|1998-11-10|1998-12-03|Bishop Innovation Pty Limited|Optical sensor|
    CZ299647B6|2000-11-02|2008-10-01|Rieter Cz A. S.|Device for contactless measurement of a linear textile formation, such as a yarn, thread, textile fiber, sliver and the like|
    CZ2001121A3|2001-01-10|2002-10-16|Rieter Cz A. S.|Device for monitoring a moving linear textile formation, particularly yarn|
    CZ299684B6|2001-12-17|2008-10-22|Rieter Cz A. S.|Device for contactless measurement of the properties of a moving yarn or of a yarn-like textile formation|
    DE102004053736B4|2004-11-06|2013-05-29|Oerlikon Textile Gmbh & Co. Kg|yarn sensor|
    DE102005061358B4|2005-12-21|2008-08-21|Siemens Ag|A temperature control integrated circuit in a semiconductor material and method of controlling the temperature of a semiconductor integrated circuit having an integrated circuit|
    DE102007040224A1|2007-08-25|2009-02-26|Oerlikon Textile Gmbh & Co. Kg|Method for optical monitoring of thread quality with correction for temperature and for ageing of detectors|
    CZ305932B6|2009-09-30|2016-05-11|Rieter Cz S.R.O.|Method of monitoring color homogeneity of yarn surface and apparatus for making the same|CN111519297A|2020-04-15|2020-08-11|邱丽遐|AGV car that has single spindle monitoring sensor and yarn piecing devices|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CZ20120671A|CZ304010B6|2012-10-02|2012-10-02|Device to monitor quality of moving linear textile material, especially yarn|
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