CN101439322A - Self-regulating powder-feeding device by fluidizing gas - Google Patents
Self-regulating powder-feeding device by fluidizing gas Download PDFInfo
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- CN101439322A CN101439322A CNA2008101878501A CN200810187850A CN101439322A CN 101439322 A CN101439322 A CN 101439322A CN A2008101878501 A CNA2008101878501 A CN A2008101878501A CN 200810187850 A CN200810187850 A CN 200810187850A CN 101439322 A CN101439322 A CN 101439322A
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- fluidizing gas
- feeding device
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Abstract
The invention provides a fluidizing gas automatic regulating powder feeding device which comprises a powder bucket, a valve for controlling the input pressure and flow rate of fluidizing gas, a sensor used for monitoring the powder level in the powder bucket, a controller for controlling the actions of the valve according to the data of the sensor and alarm equipment; wherein, the sensor is electrically connected with the controller which is electrically connected with the valve and the alarm equipment. The controller controls the flow rate and the pressure of the fluidizing gas input by the valve according to the information of the height of the powder level obtained by the sensor, and dynamically regulates the height of the powder level in the powder bucket. When height of the powder level exceeds the upper limit or the lower limit preset by the controller, the controller drives the alarm equipment to give the alarm, so that the powder feeding device is avoided being damaged. According to the invention, full-automatic regulation of powder feeding can be realized, thus saving manpower and materials, reducing the consumption quantity of the fluidizing gas; in addition, the best fluidizing effect can be provided under the conditions of different powder levels.
Description
Technical field
The present invention relates to a kind of fluidized bed type powder feeder unit that can regulate supply gas pressure or flow automatically and powder position intelligent alarm control device that is used for the electrostatic powder coating industry, be applied to fluidized bed type powder supplies equipment.
Background technology
As shown in Figure 1, in the powder feeder unit of present electrostatic power spraying apparatus, the control of fluidized gas generally is made up of position formula magnetic valve 1, controller 2 and control valve 3.By the break-make of position formula magnetic valve 1 control fluidized gas, and pass through the size that control valve 3 is regulated fluidized gas pressure or flow.Powder position warning device is made up of two to three proximity transducers 5 and an alarm 4, is characterized in simple in structure, the powder position of pipe powder height not, and all setting up is a fluidisation pressure.
But there is very big problem in the said equipment, mainly shows:
1. the fluidized gas consumption is bigger.
2. can't provide best fluid effect under the different situation in powder position.
3. can not guarantee the stability of electrostatic powder paint gun for powder.
Summary of the invention
The object of the present invention is to provide a kind of energy to reduce compressed-air actuated waste, guarantee best fluid effect, guarantee that spray gun supplies the stable powder feeder unit of powder amount, it can to fluidized gas pressure or flow carries out stepless or have level to regulate, and realizes powder position intelligent alarm.
The present invention is achieved by the following technical solution, promptly, the invention provides a kind of self-regulating powder-feeding device by fluidizing gas, the valve that comprises powder bucket, control fluidized gas input pressure and flow also comprises the sensor of powder position in the monitoring powder bucket, according to the controller and the alarm of sensing data by-pass valve control action; Described sensor is electrically connected with controller, and described controller is electrically connected with described valve, and described controller is electrically connected with described alarm.The powder position elevation information that described controller obtains according to sensor, the flow and the pressure of by-pass valve control inlet flow gasification are dynamically regulated the powder position height in the powder bucket.And when powder position highly default above the controller upper limit or following prescribing a time limit, controller drives alarm and gives the alarm, and avoids damaging powder feeder unit.
According to an embodiment of the present, described sensor is for being inserted into the bar-shaped sensor of powder bucket bottom from powder bucket top, and this sensor is by knowing the height of powder with contacting of powder.The sensor of this type is perception powder position height continuously, obtain the concrete numerical value of powder position height, so controller can make the pressure and the flow of valve step-less adjustment fluidized gas.
According to another kind of embodiment of the present invention, described sensor is at least three, is equally distributed in powder bucket inwall from top to bottom along powder bucket inside, and this sensor is by knowing the height of powder with contacting of powder.Which two sensor the sensor of this type can obtain top, powder position between, obtains powder position height indirectly, so controller can make valve that the pressure and the flow of fluidized gas are carried out multistage adjusting.
According to another embodiment of the present invention, described valve is pressure or flow proportional control valve, or the air pressure transfer valve.
According to another embodiment of the present invention, it is characterized in that described controller reduces the pressure or the flow of described valve inlet flow gasification when highly increasing in the powder position, increase the pressure or the flow of described valve inlet flow gasification when highly reducing in the powder position.Can realize full-automatic regulation, use manpower and material resources sparingly, reduce the fluidized gas consumption, best fluid effect is provided under the situation of different powder position, guarantee the stability of electrostatic powder paint gun for powder for powder.
According to another embodiment of the present invention, described controller has the display unit that shows powder position height in the powder bucket.Be convenient to the user according to the powder position height that shows, the manual adjustments valve, the flow or the pressure of control fluidized gas, and take other measures.
The present invention compared with prior art has following advantage.
1. saving compressed air.When powder was few in the powder bucket, the compressed-air actuated consumption of fluidisation was just few; Otherwise compressed-air actuated consumption is just many.
2. the size of fluidized gas pressure is carried out stepless according to the height of powder position in the powder bucket or is had level to regulate in the powder bucket, thereby guarantees best fluidized state.
3. guarantee the stability of electrostatic powder paint gun for powder.
4. powder position alarming value can be regulated easily, and reports to the police accurately in the powder position.
Description of drawings
Fig. 1 is the schematic diagram of reflection prior art;
Fig. 2 is the schematic diagram according to the self-regulating powder-feeding device by fluidizing gas of the embodiment of the invention 1;
Fig. 3 is the schematic diagram according to the self-regulating powder-feeding device by fluidizing gas of the embodiment of the invention 2.
The specific embodiment
As shown in Figure 2, there is shown fluidized bed type powder feeder unit according to a kind of automatic adjusting supply gas pressure of the present invention and/or flow, it is made of level sensor 1, controller 2, ratio adjusting valve 3 and alarm 4, measure the height of powder in the powder bucket 5 by level sensor 1, then the setting value of the powder position height of altitude signal and controller is compared, regulate the aperture of ratio adjusting valve 3 subsequently continuously, thereby regulate the pressure or the flow (the corresponding curve of pressure or Flow-rate adjustment can require default according to reality) of fluidized gas automatically.If measuring height is lower than powder position alarm setting value, then exports a signal and hang down the warning of powder position for alarm 4.If measuring height is higher than high powder position alarm setting value, then exports a signal and carry out the Gao Fenwei warning for alarm 4.
As shown in Figure 3, there is shown a kind of according to another embodiment of the present invention automatic adjusting supply gas pressure and/flow or the fluidized bed type powder feeder unit, it is made of level sensor 1, controller 2, transfer valve 3 and alarm 4, by the powder position height in the level sensor 1 measurement powder bucket 5, highly set up corresponding pressure or flow according to the powder position, thereby have level ground to realize regulating automatically fluidisation air pressure or flow.If measuring height is lower than powder position alarm setting value, then exports a signal and hang down the warning of powder position to alarm.If measuring height is higher than high powder position alarm setting value, then exports a signal and carry out the Gao Fenwei warning to alarm.
Claims (8)
1. self-regulating powder-feeding device by fluidizing gas comprises it is characterized in that the valve of powder bucket, control fluidized gas input pressure and flow, also comprises the sensor of powder position in the monitoring powder bucket, according to the controller and the alarm of sensing data by-pass valve control action; Described sensor is electrically connected with controller, and described controller is electrically connected with described valve, and described controller is electrically connected with described alarm.
2. self-regulating powder-feeding device by fluidizing gas as claimed in claim 1 is characterized in that, described sensor is for being inserted into the bar-shaped sensor of powder bucket bottom from powder bucket top, and this sensor is by knowing the height of powder with contacting of powder.
3. self-regulating powder-feeding device by fluidizing gas as claimed in claim 1 is characterized in that described sensor is at least three, is equally distributed in powder bucket inwall from top to bottom along powder bucket inside, and this sensor is by knowing the height of powder with contacting of powder.
4. self-regulating powder-feeding device by fluidizing gas as claimed in claim 1 is characterized in that, described valve is pressure or flow proportional control valve, or the air pressure transfer valve.
5. self-regulating powder-feeding device by fluidizing gas as claimed in claim 2 is characterized in that, the powder position that described controller obtains according to described sensor is highly controlled described valve fluidized gas pressure or the flow that enters the powder bucket carried out step-less adjustment.
6. self-regulating powder-feeding device by fluidizing gas as claimed in claim 3 is characterized in that, the powder position that described controller obtains according to described sensor is highly controlled described valve fluidized gas pressure or the flow that enters the powder bucket carried out the classification adjusting.
7. as claim 5 or 6 each self-regulating powder-feeding device by fluidizing gas, it is characterized in that, described controller reduces the pressure or the flow of described valve inlet flow gasification when highly increasing in the powder position, increase the pressure or the flow of described valve inlet flow gasification when highly reducing in the powder position.
8. self-regulating powder-feeding device by fluidizing gas as claimed in claim 1 is characterized in that, described controller has the display unit that shows powder position height in the powder bucket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101878501A CN101439322B (en) | 2008-12-24 | 2008-12-24 | Self-regulating powder-feeding device by fluidizing gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101878501A CN101439322B (en) | 2008-12-24 | 2008-12-24 | Self-regulating powder-feeding device by fluidizing gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101439322A true CN101439322A (en) | 2009-05-27 |
| CN101439322B CN101439322B (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101878501A Expired - Fee Related CN101439322B (en) | 2008-12-24 | 2008-12-24 | Self-regulating powder-feeding device by fluidizing gas |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102626685A (en) * | 2012-04-28 | 2012-08-08 | 广州卓迅包装机械有限公司 | Pressurized-jet powder supply system |
| CN102921614A (en) * | 2012-11-23 | 2013-02-13 | 浙江明泉工业涂装有限公司 | Powder feeding center of spraying equipment |
| CN104984845A (en) * | 2015-08-17 | 2015-10-21 | 临朐远宏金属制品有限公司 | Powder supply center capable of automatic clearing |
| CN109070112A (en) * | 2016-04-29 | 2018-12-21 | 瓦格纳国际公司 | For coating powder to be delivered to powder conveyor, powder coated system and the method for being used to operate powder conveyor of powder spreader |
-
2008
- 2008-12-24 CN CN2008101878501A patent/CN101439322B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102626685A (en) * | 2012-04-28 | 2012-08-08 | 广州卓迅包装机械有限公司 | Pressurized-jet powder supply system |
| CN102921614A (en) * | 2012-11-23 | 2013-02-13 | 浙江明泉工业涂装有限公司 | Powder feeding center of spraying equipment |
| CN104984845A (en) * | 2015-08-17 | 2015-10-21 | 临朐远宏金属制品有限公司 | Powder supply center capable of automatic clearing |
| CN109070112A (en) * | 2016-04-29 | 2018-12-21 | 瓦格纳国际公司 | For coating powder to be delivered to powder conveyor, powder coated system and the method for being used to operate powder conveyor of powder spreader |
| CN109070112B (en) * | 2016-04-29 | 2024-04-02 | 瓦格纳国际公司 | Powder conveyor for conveying coating powder to a powder applicator, powder coating system and method for operating a powder conveyor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101439322B (en) | 2010-11-17 |
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Granted publication date: 20101117 Termination date: 20161224 |