CN213686233U - Nitrogen intelligent control device - Google Patents
Nitrogen intelligent control device Download PDFInfo
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- CN213686233U CN213686233U CN202022186125.1U CN202022186125U CN213686233U CN 213686233 U CN213686233 U CN 213686233U CN 202022186125 U CN202022186125 U CN 202022186125U CN 213686233 U CN213686233 U CN 213686233U
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Abstract
The utility model discloses a nitrogen intelligent control device, which comprises a feeding sensor, a discharging sensor, a nitrogen valve and a programmable controller, wherein the feeding sensor is used for sensing the feeding condition of processing equipment; the discharging sensor is used for sensing the discharging condition of the processing equipment; the nitrogen valve is used for adjusting the nitrogen supply of the processing equipment; and the programmable controller is used for controlling the nitrogen valve to adjust nitrogen supply according to the feeding and discharging conditions sensed by the feeding sensor and the discharging sensor, and is respectively in communication connection with the feeding sensor, the discharging sensor and the nitrogen valve. The nitrogen intelligent control device can automatically control the opening and closing of the nitrogen valve according to the feeding and discharging conditions of the processing equipment.
Description
Technical Field
The utility model relates to an intelligent control technique especially relates to a nitrogen gas intelligent control device.
Background
The reflow oven is a processing device for surface soldering of printed circuit boards. In order to reduce the high-temperature oxidation and welding defects of a welding disc and a pin and prevent a printed circuit board from being burnt, the conventional reflow oven needs to use nitrogen to protect the printed circuit board in the oven.
On one hand, technicians often forget to open a nitrogen valve on a reflow oven before production, so that the welding quality of a printed circuit board welded in the oven is affected because the printed circuit board is not protected by nitrogen; on the other hand, technicians often forget to close a nitrogen valve on the furnace when going out of work, stopping work or abnormal production, so that nitrogen always flows into the furnace to cause waste of nitrogen.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a nitrogen intelligent control device can be according to the switching of the business turn over material condition automatic control nitrogen valve door of processing equipment.
The utility model discloses the technical problem that will solve realizes through following technical scheme:
an intelligent nitrogen control device comprises a feeding sensor, a discharging sensor, a nitrogen valve and a programmable controller, wherein
The feeding sensor is used for sensing the feeding condition of the processing equipment;
the discharging sensor is used for sensing the discharging condition of the processing equipment;
the nitrogen valve is used for adjusting the nitrogen supply of the processing equipment;
and the programmable controller is used for controlling the nitrogen valve to adjust nitrogen supply according to the feeding and discharging conditions sensed by the feeding sensor and the discharging sensor, and is respectively in communication connection with the feeding sensor, the discharging sensor and the nitrogen valve.
Further, when the feeding sensor and the discharging sensor do not sense feeding and discharging at the same time within a preset time, the programmable controller controls the nitrogen valve to close.
Further, the programmable controller controls the nitrogen valve to open when the feed sensor senses feed.
Further, the device also comprises a nitrogen sensor and an alarm, wherein
The nitrogen sensor is used for sensing the condition of nitrogen in the processing equipment;
the alarm is used for alarming;
and after controlling the nitrogen valve to be opened, the programmable controller controls the alarm to alarm according to the nitrogen condition sensed by the nitrogen sensor and is in communication connection with the nitrogen sensor and the alarm respectively.
Further, when the nitrogen valve is opened and the nitrogen sensor does not sense nitrogen, the programmable controller controls the alarm to alarm.
Further, the nitrogen sensor is a flow sensor.
And the touch screen is used for displaying a control interface and acquiring touch operation and is in communication connection with the programmable controller.
Furthermore, the feeding sensor is arranged on a feeding door of the processing equipment, and the discharging sensor is arranged on a discharging door of the processing equipment.
Further, when the number of the feeding sensors is two or more, the feeding sensors are connected in a parallel structure, and when the number of the discharging sensors is two or more, the discharging sensors are connected in a parallel structure.
The utility model discloses following beneficial effect has: this nitrogen gas intelligent control device passes through whether processing equipment has business turn over material of feed sensor and ejection of compact sensor sensing to feedback signal gives programmable controller controls opening of nitrogen gas valve is closed, can guarantee that processing equipment has sufficient nitrogen gas to use when producing, and avoids processing equipment to cause nitrogen gas extravagant when the shut down.
Drawings
Fig. 1 is the utility model provides a nitrogen gas intelligent control device's schematic diagram.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in figure 1, the intelligent nitrogen control device comprises a feeding sensor 11, a discharging sensor 12, a nitrogen valve 13 and a programmable controller 14, wherein
The feeding sensor 11 is used for sensing the feeding condition of the processing equipment 2;
the discharging sensor 12 is used for sensing the discharging condition of the processing equipment 2;
the nitrogen valve 13 is used for adjusting the nitrogen supply of the processing equipment 2;
and the programmable controller 14 is configured to control the nitrogen valve 13 to adjust nitrogen supply according to the feeding and discharging conditions sensed by the feeding sensor 11 and the discharging sensor 12, and is in communication connection with the feeding sensor 11, the discharging sensor 12 and the nitrogen valve 13 respectively.
This nitrogen gas intelligent control device passes through whether processing equipment 2 has business turn over material of sensing is come to feed sensor 11 and ejection of compact sensor 12 to feedback signal gives programmable controller 14 controls opening of nitrogen valve 13 is closed, can guarantee that processing equipment 2 has sufficient nitrogen gas to use when producing, and avoids processing equipment 2 to cause nitrogen gas extravagant when stopping production.
When the intelligent nitrogen control device works, materials to be processed are conveyed by a feeding conveying rail 3 positioned in front of a feeding door of processing equipment 2, and processed materials are conveyed by a discharging conveying rail 4 positioned in front of a discharging door of the processing equipment 2; when the feeding sensor 11 senses feeding, the programmable controller 14 controls the nitrogen valve 13 to open, and nitrogen continuously enters the processing cavity of the processing equipment 2; when the feed sensor 11 and the discharge sensor 12 do not sense the feeding or discharging at the same time within a predetermined time (for example, 30 minutes), the programmable controller 14 controls the nitrogen valve 13 to be closed, and the nitrogen gas source stops entering the processing chamber of the processing apparatus 2.
The processing equipment 2 may be any equipment requiring nitrogen gas injection during production, and is not limited to a reflow furnace.
The feeding sensor 11 is arranged on a feeding door of the processing equipment 2, the discharging sensor 12 is arranged on a discharging door of the processing equipment 2, and the nitrogen valve 13 is arranged in an air inlet pipeline of the processing equipment 2; the number of the feeding sensors 11 and the discharging sensors 12 is at least one, when the number of the feeding sensors 11 is two or more, the feeding sensors 11 are connected in a parallel structure, when the number of the discharging sensors 12 is two or more, the discharging sensors 12 are connected in a parallel structure, and when a single feeding sensor 11 or discharging sensor 12 is damaged, the normal sensing of other feeding sensors 11 or discharging sensors 12 is not influenced.
The intelligent nitrogen control device also comprises a nitrogen sensor 15 and an alarm, wherein
The nitrogen sensor 15 is used for sensing the condition of nitrogen in the processing equipment 2;
the alarm is used for alarming;
after controlling the nitrogen valve 13 to open, the programmable controller 14 controls the alarm to alarm according to the nitrogen condition sensed by the nitrogen sensor 15, and is in communication connection with the nitrogen sensor 15 and the alarm respectively.
When the intelligent nitrogen control device works, after the nitrogen valve 13 is opened and the nitrogen sensor 15 does not sense nitrogen, it indicates that no nitrogen is sent into the processing equipment 2 although the nitrogen valve 13 is opened, and the programmable controller 14 controls the alarm to give an alarm to remind a technician who can check whether the air source is in a problem or check whether the air inlet pipeline is blocked or not after hearing the alarm.
In this embodiment, the nitrogen sensor 15 is a flow sensor, and is disposed in the air inlet duct of the processing apparatus 2 to sense the flow rate of the nitrogen gas flow in the air inlet duct.
The nitrogen intelligent control device also comprises a touch screen 141 which is used for displaying a control interface and acquiring touch operation and is in communication connection with the programmable controller 14.
A technician performs a touch operation on the control interface displayed on the touch screen 141 to perform operations such as mode selection, parameter setting, startup and shutdown, air intake time setting, air intake amount setting, and the like.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is specific and detailed, but the invention can not be understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by adopting the equivalent substitution or equivalent transformation should fall within the protection scope of the present invention.
Claims (7)
1. The intelligent nitrogen control device is characterized by comprising a feeding sensor, a discharging sensor, a nitrogen valve and a programmable controller, wherein the feeding sensor, the discharging sensor, the nitrogen valve and the programmable controller are arranged on the nitrogen valve
The feeding sensor is used for sensing the feeding condition of the processing equipment;
the discharging sensor is used for sensing the discharging condition of the processing equipment;
the nitrogen valve is used for adjusting the nitrogen supply of the processing equipment;
and the programmable controller is used for controlling the nitrogen valve to adjust nitrogen supply according to the feeding and discharging conditions sensed by the feeding sensor and the discharging sensor, and is respectively in communication connection with the feeding sensor, the discharging sensor and the nitrogen valve.
2. The intelligent control device of nitrogen of claim 1, further comprising a nitrogen sensor and an alarm, wherein
The nitrogen sensor is used for sensing the condition of nitrogen in the processing equipment;
the alarm is used for alarming;
and after controlling the nitrogen valve to be opened, the programmable controller controls the alarm to alarm according to the nitrogen condition sensed by the nitrogen sensor and is in communication connection with the nitrogen sensor and the alarm respectively.
3. The intelligent control device for nitrogen gas of claim 2, wherein the programmable controller controls the alarm to alarm when the nitrogen gas sensor does not sense nitrogen gas after the nitrogen gas valve is opened.
4. The intelligent control device for nitrogen gas according to claim 2 or 3, wherein the nitrogen gas sensor is a flow sensor.
5. The intelligent nitrogen control device of claim 1, further comprising a touch screen for displaying a control interface and acquiring touch control operations, and communicatively connected to the programmable controller.
6. The intelligent nitrogen control device of claim 1, wherein the feed sensor is disposed on a feed door of the processing equipment, and the discharge sensor is disposed on a discharge door of the processing equipment.
7. The intelligent nitrogen control device of claim 1 or 6, wherein when the number of the feeding sensors is two or more, the feeding sensors are connected in a parallel structure, and when the number of the discharging sensors is two or more, the discharging sensors are connected in a parallel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022186125.1U CN213686233U (en) | 2020-09-29 | 2020-09-29 | Nitrogen intelligent control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022186125.1U CN213686233U (en) | 2020-09-29 | 2020-09-29 | Nitrogen intelligent control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213686233U true CN213686233U (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202022186125.1U Active CN213686233U (en) | 2020-09-29 | 2020-09-29 | Nitrogen intelligent control device |
Country Status (1)
| Country | Link |
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| CN (1) | CN213686233U (en) |
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2020
- 2020-09-29 CN CN202022186125.1U patent/CN213686233U/en active Active
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