CN103776592B - A kind of system and method for monitoring VPL production line vacuum leak - Google Patents
A kind of system and method for monitoring VPL production line vacuum leak Download PDFInfo
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- CN103776592B CN103776592B CN201410005922.1A CN201410005922A CN103776592B CN 103776592 B CN103776592 B CN 103776592B CN 201410005922 A CN201410005922 A CN 201410005922A CN 103776592 B CN103776592 B CN 103776592B
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Abstract
The present invention relates to glass processing device field, the vacuum leak monitoring system particularly on a kind of vehicle glass production line, specifically a kind of system and method for monitoring VPL production line vacuum leak.This system comprises vacuum pump, vacuum pump comprises air intake opening and gas outlet, the gas outlet of vacuum pump is provided with vacuum leak monitoring device, described vacuum leak monitoring device comprises rotating flabellum and optoelectronic switch, described optoelectronic switch comprise can utilizing emitted light signal transmitting terminal and can the receiving end of receiving optical signals.System and method of the present invention, can avoid vacuum leak to monitor existence and may interrupt and the unstable problem that may cause product quality of Monitoring Data; Simultaneously, described vacuum leak monitoring device comprises rotating flabellum and optoelectronic switch, can carry out recording, analyze and reviewing by Real-Time Monitoring, and can avoid vacuum capacity drastic change when VPL production line is produced in the short time, reduce maloperation, improve the production efficiency of VPL production line.
Description
Technical field:
The present invention relates to glass processing device field, the vacuum leak monitoring system particularly on a kind of vehicle glass production line, specifically a kind of system and method for monitoring VPL production line vacuum leak.
Background technology:
Laminated glass on automobile, particularly front windshield are generally made up of diaphragm in the middle of two panels glass substrate and a slice.Automobile sandwich-glass is generally needing to carry out first pressing process through VPL production line after closing sheet process, first pressing process is mainly used in the air of more than 70% between glass substrate and middle diaphragm to take out, and make the periphery of glass substrate and middle diaphragm seal to prevent air and moisture in subsequent processes from entering, finally realize glass substrate and middle diaphragm tentatively sticks together.Usual employing vacuum pump carries out first pressing process to automobile sandwich-glass, and namely the air intake opening of vacuum pump is communicated with VPL production line by vacuum tube, thus is taken out by the air of more than 70% between glass substrate and middle diaphragm.But in the process of actual first pressing process, due to the contour structures of glass substrate, the silica gel ring be enclosed within when taking air away on glass substrate periphery cannot seal even loosening, thus causes vacuum leak, affects final product quality.
Now in the art, the artificial intubation way of general employing is monitored, namely vacuum monitoring device is set at the upper slice position of VPL production line, this vacuum monitoring device is connected with the vacuum valve on VPL production line by silicone tube, thus the vacuum pressure on monitoring VPL production line, when there is anomaly vacuum leak in vacuum pressure, by alarm device generation alarm, then the operation of VPL production line is stopped, by the time going up an employee or maintenance personal gets rid of after leakage point recovers vacuum, reopens VPL production line.There is following shortcoming in the method that the artificial intubation way of this employing carries out monitoring vacuum leak: 1 in actual use, in process of production, and certain interval of time, silicone tube will be taken off, change a vacuum valve, otherwise silicone tube can be pulled off, and affects the monitoring of vacuum leak, 2, the air intake opening of vacuum pump is communicated with VPL production line by vacuum tube, but vacuum tube can change position along with the operation of VPL production line, the distance of vacuum monitoring device and vacuum tube is changed, in fact be different at the vacuum pressure of different position monitorings, monitoring numerical value near vacuum tube is larger, it is less that numerical value is then monitored in position away from vacuum tube, monitor numerical value in production to be as the criterion with the monitoring numerical value of the position farthest away from vacuum tube, but producers can only upper position monitoring under normal circumstances, so just may when there is vacuum tube near upper slice position in certain period, monitoring numerical value is qualified, and the monitoring numerical value of vacuum tube distalmost end occurs abnormal, bring risk can to like this product quality of far-end, 3, the monitoring numerical value in production run cannot real time record, cannot be provided with post analysis for file and review.
Summary of the invention:
Technical matters to be solved by this invention may to be interrupted for vacuum leak of the prior art monitoring existence and Monitoring Data instability may cause the shortcomings such as product quality problem, a kind of system for monitoring VPL production line vacuum leak is provided, and applies the method for this system monitoring VPL production line vacuum leak.
The present invention solves the technical scheme that its technical matters takes: a kind of system for monitoring VPL production line vacuum leak, comprise vacuum pump, vacuum pump comprises air intake opening and gas outlet, the air intake opening of vacuum pump is communicated with VPL production line by vacuum tube, it is characterized in that: the gas outlet of vacuum pump is provided with vacuum leak monitoring device, described vacuum leak monitoring device comprises rotating flabellum and optoelectronic switch, the air that the gas outlet of vacuum pump is discharged makes described flabellum rotate, described flabellum comprises at least two panels blade and the pedestal for fixed blade, described optoelectronic switch comprise can utilizing emitted light signal transmitting terminal and can the receiving end of receiving optical signals, pedestal offers at least one through hole, the light signal that described transmitting terminal is launched often once just is counted a umber of pulse through described through hole by described receiving end reception.
Further, described pedestal offers two through holes, the center of circle that two through holes and flabellum rotate is on same straight line.
Further, this system also comprises control assembly, described control assembly is connected with optoelectronic switch, described control assembly for storing the umber of pulse of optoelectronic switch, the monitor value of the umber of pulse of optoelectronic switch when described umber of pulse comprises setting value and the actual production of VPL production line of the umber of pulse of optoelectronic switch when VPL production line is normally produced.
Further, this system also comprises alarm device, and control assembly is connected with alarm device, and when the monitor value of umber of pulse exceedes setting value, control assembly starts alarm device.
Further, control assembly is connected with VPL production line, and when the monitor value of umber of pulse exceedes setting value, control assembly suspends VPL production line.
Meanwhile, the present invention also provides a kind of method for monitoring VPL production line vacuum leak, it is characterized in that: comprise the steps:
Step 1: the setting value measuring the umber of pulse of optoelectronic switch within unit interval when VPL production line is normally produced;
Step 2: during record VPL production line actual production within the unit interval monitor value of the umber of pulse of optoelectronic switch;
Step 3: monitor value and setting value are contrasted, if monitor value is greater than setting value, then makes corresponding operating reparation; Otherwise, then normal production is continued.
Further, when in step 1, measurement is normally produced, within the unit interval, the method for the setting value of the umber of pulse of optoelectronic switch comprises the steps:
(1) when normally producing, VPL production line is fully loaded with glass, continuous seepage more than at least 60 minutes;
(2) vacuum pressure value of VPL production line is adjusted to qualified force value;
(3) produce by usual speed of production and mode of operation, must ensure that often going up a sheet glass initial vacuum force value returns to qualified force value, continuous seepage a period of time, and the measured value obtaining the umber of pulse in N number of unit interval, wherein N >=50;
(4) mean value of the measured value in N number of unit interval is calculated;
(5) according to different situations, mean value is added that the modified value of 1 ~ 5 is as setting value.
Further, the mean value of the measured value of umber of pulse in n unit interval when the monitor value in step 2 is actual production, wherein n >=10.
Further, within every 4 seconds, a unit interval is counted.
Further, the corresponding operating in step 3 is for starting alarm device and/or suspending VPL production line.
The present invention is owing to taking technique scheme, and it has following beneficial effect:
System and method for monitoring VPL production line vacuum leak of the present invention, by being provided with vacuum leak monitoring device in the gas outlet of vacuum pump, vacuum leak can being avoided to monitor existence and may interrupt and the unstable problem that may cause product quality of Monitoring Data; Simultaneously, described vacuum leak monitoring device comprises rotating flabellum and optoelectronic switch, can carry out recording, analyze and reviewing by Real-Time Monitoring, and can avoid vacuum capacity drastic change when VPL production line is produced in the short time, reduce maloperation, improve the production efficiency of VPL production line.
Accompanying drawing illustrates:
Fig. 1 is the schematic diagram of the system for monitoring VPL production line vacuum leak of the present invention;
Fig. 2 is the schematic diagram of vacuum leak monitoring device of the present invention;
Fig. 3 is the structural representation of flabellum of the present invention;
Fig. 4 is the fluctuation schematic diagram that VPL production line vacuum pressure value of the present invention is qualified;
Fig. 5 is the underproof fluctuation schematic diagram of VPL production line vacuum pressure value of the present invention;
In figure: 1, vacuum pump; 11, air intake opening; 12, gas outlet; 2, VPL production line; 3, vacuum tube; 4, vacuum leak monitoring device; 41, flabellum; 411, blade; 412, pedestal; 4121, through hole; 42, optoelectronic switch; 421, transmitting terminal; 422, receiving end; 5, control assembly; 6, alarm device; 7, computing machine.
Embodiment:
Below in conjunction with accompanying drawing, content of the present utility model is described further.
As shown in Figure 1, system for monitoring VPL production line 2 vacuum leak of the present invention, comprise vacuum pump 1, vacuum pump 1 comprises air intake opening 11 and gas outlet 12, the air intake opening 11 of vacuum pump 1 is communicated with VPL production line 2 by vacuum tube 3, and the gas outlet 12 of vacuum pump 1 is provided with vacuum leak monitoring device 4.Wherein, VPL production line 2 is fully loaded with when normal production needs the automobile sandwich-glass of first pressing process; Vacuum pump 1 pair of automobile sandwich-glass carries out first pressing process, and namely the air intake opening 11 of vacuum pump 1 is communicated with VPL production line 2 by vacuum tube 3, thus is taken out by the air of more than 70% between glass substrate and middle diaphragm; Vacuum leak monitoring device 4 is for monitoring the change of the air capacity of the gas outlet 12 of vacuum pump 1, judge whether to there is vacuum leak by the change of air capacity, namely just can judge to there occurs vacuum leak when actual exhaust air amount is greater than air capacity when normally producing, need to carry out corresponding operating to repair.
As shown in Figures 2 and 3, described vacuum leak monitoring device 4 comprises rotating flabellum 41 and optoelectronic switch 42, the air that the gas outlet 12 of vacuum pump 1 is discharged makes described flabellum 41 rotate, described flabellum 41 comprises at least two panels blade 411 and the pedestal 412 for fixed blade 411, described optoelectronic switch 42 comprise can utilizing emitted light signal transmitting terminal 421 and can the receiving end 422 of receiving optical signals, pedestal 412 offers at least one through hole 4121, the light signal launched of described transmitting terminal 421 often to be received by described receiving end 422 through described through hole 4121 and once just counts a umber of pulse.The air capacity of the gas outlet 12 of usual vacuum pump 1 is larger, flabellum 41 rotates faster, the umber of pulse produced in unit interval is more, when the monitor value of the umber of pulse in the unit interval is greater than setting value, just can judge whether there is vacuum leak objectively intuitively.
It should be noted that, within every 4 seconds, count a unit interval here.But be not limited thereto, carry out difference according to different VPL production line and concrete glass kind in actual production and arrange.
In figure 3, described pedestal 412 offers the center of circle that two through holes, 4121, two through holes 4121 and flabellum 41 rotate on same straight line, like this can the umber of pulse of generation in record unit time more exactly.But be not limited thereto, be understandable that arranging more through hole as required is also fine.
In FIG, this system also comprises control assembly 5 further, described control assembly 5 is connected with optoelectronic switch 42, described control assembly 5 for storing the umber of pulse of optoelectronic switch 42, the monitor value of the umber of pulse of optoelectronic switch 42 when described umber of pulse comprises setting value and 2 actual production of VPL production line of the umber of pulse of optoelectronic switch 42 when VPL production line 2 is normally produced.Meanwhile, described control assembly 5 can also be configured with computing machine 7, is convenient to graphical operation.
Preferably, this system also comprises alarm device 6, and control assembly 5 is connected with alarm device 6, when the monitor value of umber of pulse exceedes setting value, control assembly 5 starts alarm device 6, so just informs that vacuum leak appears in field staff VPL production line 2, needs to repair.And according to different situations, alert level is also distinguished, such as alarm device 6 is provided with green indicating lamp and red led, as setting value-monitor value ﹤ 5, can warn in advance, green indicating lamp meeting fast blink; As 5 ﹤ setting value-monitor value ﹤ 10, green indicating lamp can glimmer at a slow speed; When setting value < monitor value, green indicating lamp extinguishes, and red led lights, being suspended of VPL production line 2, until again recover setting value ﹥ monitor value.
Preferably, control assembly 5 is connected with VPL production line 2, and when the monitor value of umber of pulse exceedes setting value, control assembly 5 suspends VPL production line 2, can control product quality in time like this, and after vacuum leak is repaired, VPL production line 2 continues to resume production.
Meanwhile, the present invention also provides a kind of said system of applying to monitor the method for VPL production line vacuum leak, it is characterized in that: comprise the steps:
Step 1: the setting value measuring the umber of pulse of optoelectronic switch 42 within unit interval when VPL production line 2 is normally produced;
Illustrate further: first when normally producing, VPL production line 2 is fully loaded with glass, continuous seepage more than at least 60 minutes; Then, the vacuum pressure value of VPL production line 2 is adjusted to qualified force value;
Here, the vacuum pressure value of VPL production line 2 and qualified force value are described, as shown in Figure 4 and Figure 5, assuming that qualified force value is P3, when carrying out first pressing process to automobile sandwich-glass at every turn, vacuum pressure value will be as in figure 4, P2 is reduced to, before carrying out first pressing process to lower a slice automobile sandwich-glass, namely from upper a slice automobile sandwich-glass within the time interval T of lower a slice automobile sandwich-glass from P3, vacuum pressure value returns to P3 again, illustrates that P3 is qualified force value; And as shown in Figure 5, vacuum pressure value is under P3 always, illustrate defective;
Then, produce by usual speed of production and mode of operation, must ensure that often going up a sheet glass initial vacuum force value returns to qualified force value, continuous seepage a period of time, and obtain the measured value of the umber of pulse of the optoelectronic switch 42 in N number of unit interval, wherein N >=50; Afterwards, the mean value of the measured value of the umber of pulse in N number of unit interval is calculated;
Finally, according to the situation of different VPL production line and concrete glass kind, the mean value obtained is added that the modified value of 1 ~ 5 is as setting value.
Wherein, the kind setting value of different VPL production line and production glass adds the modified value of 1 ~ 5, can avoid like this or reduce alarm times when measured value fluctuates.Because when determining setting value, setting value is the mean value of measured value in the unit interval, and measured value generally can fluctuate in mean value ± 8, and the less measuring accuracy of the value added is higher, alarm times is more, such as, when producing band wedge angle glass or the large glass of outline curvilinear motion.Also in conjunction with the length of VPL production line, concrete modified value to be selected according to needs of production, not only will reduce alarm times but also do not affect product quality.
Step 2: the monitor value of the umber of pulse of optoelectronic switch 42 during record VPL production line 2 actual production;
Wherein, the mean value of the measured value of the umber of pulse of the optoelectronic switch 42 when monitor value is actual production in n unit interval, wherein n >=10.
Step 3: monitor value and setting value are contrasted, if monitor value is greater than setting value, then makes corresponding operating reparation; Otherwise, then normal production is continued;
Wherein, the corresponding operating in step 3 is for starting alarm device and/or suspending VPL production line, and concrete condition carries out selection setting as required.Such as alarm device 6 is provided with green indicating lamp and red led, as setting value-monitor value ﹤ 5, can warn in advance, green indicating lamp meeting fast blink; As 5 ﹤ setting value-monitor value ﹤ 10, green indicating lamp can glimmer at a slow speed; When setting value < monitor value, green indicating lamp extinguishes, and red led lights, being suspended of VPL production line 2, until again recover setting value ﹥ monitor value.
Above content specifically describes sheet devices under a kind of vehicle glass described in the utility model; but the utility model is not by the limitation of embodiment content described above; the any improvement carried out according to technical essential of the present utility model so all, equivalent modifications and replacement etc., all belong to the scope of the utility model protection.
Claims (10)
1. one kind for monitoring the system of VPL production line vacuum leak, comprise vacuum pump, vacuum pump comprises air intake opening and gas outlet, the air intake opening of vacuum pump is communicated with VPL production line by vacuum tube, it is characterized in that: the gas outlet of vacuum pump is provided with vacuum leak monitoring device, described vacuum leak monitoring device comprises rotating flabellum and optoelectronic switch, the air that the gas outlet of vacuum pump is discharged makes described flabellum rotate, described flabellum comprises at least two panels blade and the pedestal for fixed blade, described optoelectronic switch comprise can utilizing emitted light signal transmitting terminal and can the receiving end of receiving optical signals, pedestal offers at least one through hole, the light signal that described transmitting terminal is launched often once just is counted a umber of pulse through described through hole by described receiving end reception.
2. the system for monitoring VPL production line vacuum leak according to claim 1, is characterized in that: described pedestal offers two through holes, and the center of circle that two through holes and flabellum rotate is on same straight line.
3. the system for monitoring VPL production line vacuum leak according to claim 1 and 2, it is characterized in that: this system also comprises control assembly, described control assembly is connected with optoelectronic switch, described control assembly for storing the umber of pulse of optoelectronic switch, the monitor value of the umber of pulse of optoelectronic switch when described umber of pulse comprises setting value and the actual production of VPL production line of the umber of pulse of optoelectronic switch when VPL production line is normally produced.
4. the system for monitoring VPL production line vacuum leak according to claim 3, it is characterized in that: this system also comprises alarm device, control assembly is connected with alarm device, and when the monitor value of umber of pulse exceedes setting value, control assembly starts alarm device.
5. the system for monitoring VPL production line vacuum leak according to claim 3, is characterized in that: control assembly is connected with VPL production line, and when the monitor value of umber of pulse exceedes setting value, control assembly suspends VPL production line.
6. application rights requires a method for the system monitoring VPL production line vacuum leak described in 1-5 any one, it is characterized in that: comprise the steps:
Step 1: the setting value measuring the umber of pulse of optoelectronic switch within unit interval when VPL production line is normally produced;
Step 2: during record VPL production line actual production within the unit interval monitor value of the umber of pulse of optoelectronic switch;
Step 3: monitor value and setting value are contrasted, if monitor value is greater than setting value, then makes corresponding operating reparation; Otherwise, then normal production is continued.
7. the method for monitoring VPL production line vacuum leak according to claim 6, is characterized in that: when in step 1, measurement is normally produced, within the unit interval, the method for the setting value of the umber of pulse of optoelectronic switch comprises the steps:
(1) when normally producing, VPL production line is fully loaded with glass, continuous seepage more than at least 60 minutes;
(2) vacuum pressure value of VPL production line is adjusted to qualified force value;
(3) produce by usual speed of production and mode of operation, must ensure that often going up a sheet glass initial vacuum force value returns to qualified force value, continuous seepage a period of time, and the measured value obtaining the umber of pulse in N number of unit interval, wherein N >=50;
(4) mean value of the measured value in N number of unit interval is calculated;
(5) according to different situations, mean value is added that the modified value of 1 ~ 5 is as setting value.
8. the method for monitoring VPL production line vacuum leak according to claim 6, is characterized in that: the mean value of the measured value of umber of pulse in n unit interval when the monitor value in step 2 is actual production, wherein n >=10.
9. the method for the monitoring VPL production line vacuum leak according to claim 6-8 any one, is characterized in that: within every 4 seconds, count a unit interval.
10. the method for monitoring VPL production line vacuum leak according to claim 6, is characterized in that: the corresponding operating in step 3 is for starting alarm device and/or suspending VPL production line.
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| CN104829145B (en) * | 2015-03-24 | 2017-09-29 | 福耀(福建)巴士玻璃有限公司 | A kind of first pressing production line of laminated glass |
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Effective date of registration: 20180720 Address after: 350301 I District, Fuyao Industrial Zone, Honglu Town, Fuqing City, Fuzhou, Fujian Patentee after: Fujian Wanda Automobile Glass Industry Co., Ltd. Address before: 350301 I District, Fuyao Industrial Zone, Honglu Town, Fuqing City, Fuzhou, Fujian Patentee before: Fuyao Glass Industry Group Co., Ltd. |
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