CN204189043U - A kind of etching solution supplements warning device automatically - Google Patents
A kind of etching solution supplements warning device automatically Download PDFInfo
- Publication number
- CN204189043U CN204189043U CN201420729350.7U CN201420729350U CN204189043U CN 204189043 U CN204189043 U CN 204189043U CN 201420729350 U CN201420729350 U CN 201420729350U CN 204189043 U CN204189043 U CN 204189043U
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- China
- Prior art keywords
- etching solution
- level sensor
- vessel
- solenoid valve
- return
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Abstract
The utility model discloses a kind of etching solution and automatically supplement warning device, be arranged on the secondary groove of etching solution and etching solution hold-up vessel inside, comprise some level sensors, discharge pump, transfer solenoid valve, return flow solenoid valve and relay, it is inner that free level inductor and high level sensor are arranged on the secondary groove of etching solution, it is inner that low level sensor is arranged on etching solution hold-up vessel, the secondary groove of etching solution is connected by liquid-transport pipe-line with etching solution hold-up vessel, return is provided with between liquid-transport pipe-line and etching solution hold-up vessel, liquid-transport pipe-line between the secondary groove of etching solution and return is connected with transfusion solenoid valve, liquid-transport pipe-line between etching solution hold-up vessel and return is connected with circuit electromagnetic valve, discharge pump is connected with between transfer solenoid valve and etching solution hold-up vessel, with free level inductor while of low level sensor, high level sensor electrical connection.Device of the present utility model has that automaticity is high, Realtime Alerts is effective, liquid feeding precise control and easy to operate feature.
Description
Technical field
The utility model relates to printed circuit board (PCB) technical field of auxiliary equipment, specifically refers to that a kind of etching solution supplements warning device automatically.
Background technology
At present, alkaline etching machine uses proportion automatic adding device to pump to etching machine by etching solution from secondary groove, carries out with continuing of ensureing to produce.But secondary tankage is limited, when secondary tank liquor face is not enough, need to manually boot add pump from etching solution hold-up vessel to etching solution secondary groove add etching solution, careful inspection is needed before interpolation, determine to add pump not blocked, because needing the artificial moment to note secondary tank liquor position in adding procedure, liquid level is crossed high-leakage and is easily caused security incident.Whole process operation is comparatively complicated, easily because of employee's misoperation or absent minded and cause leakage accident.
Utility model content
The utility model, for the problem of manually adding etching solution complex procedures at present, provides the etching solution of a kind of automatic liquid-feeding, automatic alarm automatically to supplement warning device, has the advantage that liquid feeding automaticity is high, Liquid level is accurate and Realtime Alerts is effective.
The utility model can be achieved through the following technical solutions:
A kind of etching solution supplements warning device automatically, be arranged on the secondary groove of etching solution and etching solution hold-up vessel, described etching solution automatically supplements warning device and comprises low level sensor, high level sensor, free level inductor, discharge pump, transfer solenoid valve, circuit electromagnetic valve and relay, it is inner that described free level inductor and high level sensor are arranged on the secondary groove of etching solution, it is inner that described low level sensor is arranged on etching solution hold-up vessel, the secondary groove of described etching solution is connected by conveyance conduit with etching solution hold-up vessel, return is provided with between described conveyance conduit and etching solution hold-up vessel, conveyance conduit between the secondary groove of etching solution and return is connected with transfusion solenoid valve, conveyance conduit between described etching solution hold-up vessel and return is connected with circuit electromagnetic valve, discharge pump is connected with between described transfer solenoid valve and etching solution hold-up vessel, with free level inductor while of described low level sensor, high level sensor electrical connection, described high level sensor is connected with warning horn, described free level inductor is electrically connected with relay, described relay simultaneously and transfer solenoid valve, circuit electromagnetic valve, discharge pump, warning horn is electrically connected, described transfer solenoid valve, circuit electromagnetic valve respectively with warning horn, discharge pump is electrically connected, described warning horn and discharge pump electrical connection.
Etching solution carries out etching solution transmission respectively by conveyance conduit and return after being released by etching solution hold-up vessel by discharge pump, and lead to the secondary groove of etching solution by conveyance conduit, conveyance conduit opening and closing is controlled by transfer solenoid valve; Be back to etching solution hold-up vessel by return, return opening and closing is controlled by circuit electromagnetic valve.When secondary tank liquor position is not enough, free level inductor to signal control relay, Control transfer solenoid valve and circuit electromagnetic valve.Free level inductor is used for responding in real time the real-time level of the secondary trench etch liquid of etching solution, when the secondary tank liquor position of etching solution is too low, free level inductor is communicated with, Control opens transfer solenoid valve, close circuit electromagnetic valve, etching solution is delivered to the secondary groove of etching solution from etching solution hold-up vessel by discharge pump.High level sensor is used for responding to the highest liquid level that the secondary groove of etching solution allows, when the liquid level of the secondary groove of etching solution reaches the highest liquid level of setting, high level sensor is communicated with, free level inductor is shorted and cannot works, alarm starts, Control opens circuit electromagnetic valve, close transfer solenoid valve, etching solution is back to etching solution hold-up vessel from the secondary groove of etching solution, persistent loop, both the too high risk caused in the secondary tank liquor position of etching solution had been avoided, the crystallization of etching solution hold-up vessel solute can be reduced again on the impact of discharge pump, liquid etching composition is more even, promote etch effect.Meanwhile, even if free level inductor is in malfunction and causes the control disorder of circuit electromagnetic valve, transfer solenoid valve, warning horn can continue to start, and reminds and carries out fault handling in time.Low level sensor is used for responding to the minimum liquid level that etching solution hold-up vessel allows, low level sensor is arranged on the main line of high level sensor, free level inductor, when liquid level is ultralow, can cut off the power supply of free level inductor, now free level inductor is ineffective, and etching solution cannot be transported to the secondary groove of etching solution, be back to etching solution hold-up vessel, form inner loop at etching solution hold-up vessel, the pump housing that liquid medicine crystallization causes when low temperature effectively can be avoided stuck, cannot work.
Further, described low level sensor is also in series with master control switch, in case of emergency can directly close master control switch and carry out emergency processing.
Preferably, described transfer solenoid valve is normally open solenoid valve, and described circuit electromagnetic valve is normally closed solenoid valve.When relay does not work, transfer solenoid valve is always open-minded, and after relay work, circuit electromagnetic valve is connected, and transfer solenoid valve disconnects.
Preferably, described low level sensor, high level sensor, free level inductor are float inductor, by arranging the position of float inductor, described low level sensor is fixedly installed on bottom etching solution hold-up vessel, described high level sensor is fixedly installed on the secondary notch of etching solution, it is inner that described free level inductor is movably arranged on the secondary groove of etching solution, can respond to different etching solution liquid levels.
The utility model etching solution supplements warning device automatically, compared with prior art, has following beneficial effect:
The first, automaticity is high, the liquid level responding to the secondary groove of etching solution by arranging free level inductor in real time carries out liquid feeding control, carry out cutting-off controlling by the highest liquid level arranging the secondary groove of high level sensor induction etching solution, effectively ensure that the liquid level of the secondary groove of etching solution is in rational level;
The second, Realtime Alerts is effective, induction alarm is carried out by the minimum liquid level arranged in low level sensor induction etching solution hold-up vessel, cut off the work of free level inductor, etching solution hold-up vessel is refluxed when low liquid level and stops, to the secondary groove conveying of etching solution, avoiding security incident;
Three, Liquid level is accurate, by arranging different level sensors, level sensor is electrically connected with solenoid valve, relay, described level sensor adopts float inductor, in real time the liquid level of the secondary groove of etching solution and etching solution hold-up vessel is monitored, and then carrying out level control (LC) by solenoid valve and relay, order of accuarcy effectively improves;
Four, simple to operate, overall process induction monitor, carries out filling operation frequently, without misoperation risk without the need to dropping into too much manpower and materials;
Five, security risk is low, and liquid feeding process can be monitored the liquid level of the secondary groove of etching solution and etching solution hold-up vessel in real time, avoids the risk that the secondary tank liquor position of etching solution is too high and etching solution hold-up vessel liquid level is too low preferably, ensure that the safe liquid feeding of etching solution.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation that the utility model etching solution supplements warning device automatically;
Accompanying drawing 2 is the deformation texture schematic diagram that the utility model etching solution supplements warning device automatically; Reference numeral is: 1, etching solution hold-up vessel, 2, the secondary groove of etching solution, 3, conveyance conduit, 4, return, 5, circuit electromagnetic valve, 6, transfer solenoid valve, 7, discharge pump, 8, free level inductor, 9, high level sensor, 10, low level sensor, 11, alarm, 12, relay, 13, master control switch.
Embodiment
In order to make those skilled in the art person understand the technical solution of the utility model better, below in conjunction with embodiment and accompanying drawing, the utility model product is described in further detail.
As Fig. 1, shown in Fig. 2, a kind of etching solution supplements warning device automatically, be arranged on the secondary groove 1 of etching solution and etching solution hold-up vessel 2, described etching solution automatically supplements warning device and comprises low level sensor 10, high level sensor 9, free level inductor 8, discharge pump 7, transfer solenoid valve 6, circuit electromagnetic valve 5 and relay 12, it is inner that described free level inductor 8 and high level sensor 9 are arranged on the secondary groove 1 of etching solution, it is inner that described low level sensor 10 is arranged on etching solution hold-up vessel 2, the secondary groove 1 of described etching solution is connected by return 3 with etching solution hold-up vessel 2, return 4 is provided with between described return 3 and etching solution hold-up vessel 2, return 3 between the secondary groove 1 of etching solution and return 4 is connected with transfer solenoid valve 6, return 3 between described etching solution hold-up vessel 2 and return 4 is connected with circuit electromagnetic valve 5, discharge pump 7 is connected with between described transfer solenoid valve 6 and etching solution hold-up vessel 2, with free level inductor 8 while of described low level sensor 10, high level sensor 9 is electrically connected, described high level sensor 9 is connected with alarm 11, described free level inductor 8 is electrically connected with relay 12, with transfer solenoid valve 6 while of described relay 12, circuit electromagnetic valve 5, discharge pump 7, alarm 11 is electrically connected, described transfer solenoid valve 6, circuit electromagnetic valve 5 respectively with alarm 11, discharge pump 7 is electrically connected, described alarm 11 and discharge pump 7 are electrically connected.Described low level sensor 10 is also in series with master control switch 13.Described transfer solenoid valve 6, circuit electromagnetic valve 5 are no power normally closed solenoid valve.Described low level sensor 10, high level sensor 9, free level inductor 8 are the upper and lower spacing inductor of float, described low level sensor 10 is fixedly installed on bottom etching solution hold-up vessel 2, described high level sensor 9 is fixedly installed on secondary groove 1 oral area of etching solution, and it is inner that described free level inductor 8 is movably arranged on the secondary groove 1 of etching solution.
The above, be only preferred embodiment of the present utility model, not does any pro forma restriction to the utility model; The those of ordinary skill of all industry all can shown in by specification accompanying drawing and the above and implement the utility model swimmingly; But all those skilled in the art are not departing within the scope of technical solutions of the utility model, disclosed above technology contents can be utilized and make a little change, modify with differentiation equivalent variations, be Equivalent embodiments of the present utility model; Meanwhile, all according to substantial technological of the present utility model to the change of any equivalent variations that above embodiment is done, modify and differentiation etc., within the protection domain all still belonging to the technical solution of the utility model.
Claims (5)
1. an etching solution supplements warning device automatically, be arranged on the secondary groove (1) of etching solution and etching solution hold-up vessel (2), it is characterized in that: described etching solution automatically supplements warning device and comprises low level sensor (10), high level sensor (9), free level inductor (8), discharge pump (7), transfer solenoid valve (6), circuit electromagnetic valve (5) and relay (12), it is inner that described free level inductor (8) and high level sensor (9) are arranged on the secondary groove (1) of etching solution, it is inner that described low level sensor (10) is arranged on etching solution hold-up vessel (2), the secondary groove (1) of described etching solution is connected by return (3) with etching solution hold-up vessel (2), return (4) is provided with between described return (3) and etching solution hold-up vessel (2), return (3) between the secondary groove (1) of etching solution and return (4) is connected with transfer solenoid valve (6), return (3) between described etching solution hold-up vessel (2) and return (4) is connected with circuit electromagnetic valve (5), discharge pump (7) is connected with between described transfer solenoid valve (6) and etching solution hold-up vessel (2), with free level inductor (8) while of described low level sensor (10), high level sensor (9) is electrically connected, described high level sensor (9) is connected with alarm (11), described free level inductor (8) is electrically connected with relay (12), with transfer solenoid valve (6) while of described relay (12), circuit electromagnetic valve (5), discharge pump (7), alarm (11) is electrically connected, described transfer solenoid valve (6), circuit electromagnetic valve (5) respectively with alarm (11), discharge pump (7) is electrically connected, described alarm (11) and discharge pump (7) electrical connection.
2. etching solution according to claim 1 supplements warning device automatically, it is characterized in that: described low level sensor (10) is also in series with master control switch (13).
3. etching solution according to claim 1 and 2 supplements warning device automatically, it is characterized in that: described transfer solenoid valve (6) is normally open solenoid valve.
4. etching solution according to claim 1 and 2 supplements warning device automatically, it is characterized in that: described circuit electromagnetic valve (5) is normally closed solenoid valve.
5. etching solution according to claim 1 and 2 supplements warning device automatically, it is characterized in that: described low level sensor (10), high level sensor (9), free level inductor (8) are float inductor, described low level sensor (10) is fixedly installed on etching solution hold-up vessel (2) bottom, described high level sensor (9) is fixedly installed on secondary groove (1) oral area of etching solution, and it is inner that described free level inductor (8) is movably arranged on the secondary groove (1) of etching solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729350.7U CN204189043U (en) | 2014-11-29 | 2014-11-29 | A kind of etching solution supplements warning device automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729350.7U CN204189043U (en) | 2014-11-29 | 2014-11-29 | A kind of etching solution supplements warning device automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204189043U true CN204189043U (en) | 2015-03-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420729350.7U Expired - Fee Related CN204189043U (en) | 2014-11-29 | 2014-11-29 | A kind of etching solution supplements warning device automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204189043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731348A (en) * | 2016-01-28 | 2016-07-06 | 广德宝达精密电路有限公司 | Automatic pumping device for waste etching solution |
-
2014
- 2014-11-29 CN CN201420729350.7U patent/CN204189043U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731348A (en) * | 2016-01-28 | 2016-07-06 | 广德宝达精密电路有限公司 | Automatic pumping device for waste etching solution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20181129 |