• 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 test station for rapid leak testing, in particular for production tools of the plastics processing industry, which have holes for cooling or heating through which a liquid medium, e.g. Water or oil circulating in a cycle. The test medium is conventional compressed air. For this purpose, the supply line (1) and the discharge (2) of the test station with the cooling circuit or heating circuit (10) is connected. After closing the drain valve (3) compressed air is blown through the filling head (4) into the test station. The desired test pressure is set in advance on the pressure regulating valve (5) by turning the adjusting wheel (6). So can reach the maximum desired test pressure in the circulation. After completion of the compressed air supply prevents a check valve (9) inside the housing (7) the retreating and leakage of compressed air. The set test pressure is now in circulation and can be read off the pressure gauge (8). In the event of a leak, the pressure gauge (8) will display a reduced pressure after a short time. After completing the pressure test, open the drain valve (3) to release the overpressure.
    公开号:AT15523U2
    申请号:TGM28/2017U
    申请日:2017-02-07
    公开日:2017-11-15
    发明作者:Krockenberger Rainer
    申请人:Krockenberger Rainer；
    IPC主号:
    专利说明:

    description
    TEST STATION FOR SEALING TESTING
    The invention relates to a test station for rapid leak testing, especially for production tools of the plastics processing industry, which have holes for cooling or heating through which a liquid medium, e.g. Water or oil circulating in a cycle.
    Test stations for leak testing are known in various designs. These often use a test gas, e.g. Helium, test probes, vacuum chambers, etc. This makes the tests expensive and time consuming. For example, DE 4494302C1 or many other test stations which are to be found under the collective term> tightness test <. In another test method, the test medium is water, which must again be laboriously removed from the circuit to be tested.
    The invention is therefore the task of basically mentioned production tools quickly and inexpensively to check for leaks.
    This is inventively achieved by the characterizing features of claim 1. Further advantageous embodiments are proposed according to the subclaims.
    The invention will now be explained with reference to an embodiment which is shown schematically in the drawing.
    Fig. 1 shows the entire testing station.
    Fig. 2 shows the pneumatic plan to do so.
    The testing station uses conventional compressed air as the test medium. Wherein, by injecting compressed air, into the circuit to be checked for leaks, in case of leakage, a pressure drop on a pressure gauge (8) can be measured. For this purpose, the supply line (1) and the derivative (2) of the test station to the circuit (10) is connected. After closing the drain valve (3) compressed air is blown through the filling head (4) into the test station and the circuit (10). By a subsequent pressure control valve (5), the desired test pressure is set. In this way, maximum of the desired pressure in the circuit (10) arrive. After filling the circuit (10) and terminating the compressed air supply prevents a check valve (9) the retreating and leakage of compressed air. The test pressure set on the pressure control valve (5) now lies in the circuit (10) and can be read off the pressure gauge (8). If there is a leak, the indicated pressure on the pressure gauge (8) will begin to decrease. For self-testing of the test station, the supply line (1) and the derivative (2) can be joined together. The test is carried out as already described above.
    It is a goal of each production company to work quickly, economically and efficiently. Therefore, the cooling circuit or heating circuit of production tools is checked for tightness before being set up on the production machines. Usually water is used to test the tightness, which is pressed with a hand pump in the cooling circuit or heating circuit. Among other things, this has a high time requirement for filling and emptying result. Since compressed air is usually available in production plants, the working time for leak testing can be considerably reduced with the test station described.
    权利要求:
    Claims (8)
    [1]
    claims
    A test station for rapid leak testing, in particular for production tools of the plastics processing industry, having holes for cooling or heating, through which a liquid medium, e.g. Water or oil, circulated in a cycle, characterized in that the test station used as a test medium conventional compressed air, wherein a feed line (1) and a derivative (2) of the test station, with a cooling circuit o-the heating circuit (10) and after closing of a discharge valve (3) compressed air is blown through a filling head (4) in the test station, wherein the desired test pressure in advance on a pressure control valve (5) by turning a dial (6) is set, so that only the desired test pressure in the circuit ( 10) can pass and after completion of the compressed air supply, a check valve (9) in the interior of the housing (7) prevents the escape and escape of compressed air, so that now the test pressure in the circuit (10) and can be read on a pressure gauge (8) , In a leak, the pressure gauge (8) after a short time indicates a reduced pressure, which after completion of the pressure test by opening d it drain valve (3) is drained.
    [2]
    2. Test station according to claim 1, characterized in that compressed air is used as test medium.
    [3]
    3. Test station according to claim 1 or 2, characterized in that the entire test cycle is less than 5 minutes.
    [4]
    4. Test station according to one of claims 1 to 3, characterized in that, after detecting a leak, the cooling circuit or heating circuit (10) does not have to be emptied by a liquid test medium.
    [5]
    5. Test station according to one of claims 1 to 4, characterized in that the test pressure can be set as desired from 0 to 6 bar changeable.
    [6]
    6. Test station according to one of claims 1 to 5, characterized in that different connection variants to the cooling circuit or heating circuit (10) by rapidly changing the connections are possible.
    [7]
    7. Test station according to one of claims 1 to 6, characterized in that by connecting the feed line (1) and the derivative (2), the test station itself can check for leaks.
    [8]
    8. Test station according to one of claims 1 to 7, characterized in that when emptying the test volume no residual medium from the test volume, for example residual water, from the production tool, or dirt, in the pressure control valve (5) or the pressure gauge (8) can pass , For this 2 sheets of drawings
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    同族专利:
    公开号 | 公开日
    AT15523U3|2018-03-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    AT16506U3|2019-06-03|2020-01-15|Krockenberger Rainer|Tester|DE3930551A1|1989-08-09|1991-02-14|Egm Entwicklung Montage|Manufacturing product monitoring for properties w.r.t. pressure medium - subjecting it to medium and measuring pressure parameters taking account of leakage near test device|
    DE4494302C1|1993-06-19|1998-04-16|W Von Der Heyde Gmbh Maschinen|Leak testing of hollow bodies|
    DE10021317A1|2000-05-02|2001-11-15|Wiesner Steuerungstechnik Gmbh|Airtightness testing method involves setting starting and end points for test phases, based on differential pressure value from temporal progression of actual pressure after applying initial set pressure|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATGM28/2017U|AT15523U3|2017-02-07|2017-02-07|Leak test device|ATGM28/2017U| AT15523U3|2017-02-07|2017-02-07|Leak test device|
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