CN203965001U - A kind of automatic Calibration spiral metering scale - Google Patents
A kind of automatic Calibration spiral metering scale Download PDFInfo
- Publication number
- CN203965001U CN203965001U CN201420375749.XU CN201420375749U CN203965001U CN 203965001 U CN203965001 U CN 203965001U CN 201420375749 U CN201420375749 U CN 201420375749U CN 203965001 U CN203965001 U CN 203965001U
- Authority
- CN
- China
- Prior art keywords
- scale
- feed bin
- spiral
- metering
- instrument
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
Abstract
The utility model discloses a kind of automatic Calibration spiral metering scale, comprise steady material spiral and metering screw, described metering screw is arranged at the below of steady material spiral and is attached thereto, described metering screw one end is provided with tachogenerator, bottom arranges LOAD CELLS, described tachogenerator and LOAD CELLS respectively with helix balance Instrument connection, also comprise feed bin static weighing scale and Programmable Logic Controller PLC, described feed bin static weighing scale is arranged at bin bottom, formed by feed bin load sensor and bunker scale Instrument connection, described bunker scale instrument, helix balance instrument is connected with Programmable Logic Controller PLC respectively.The utility model can automatically be demarcated and rectify a deviation the measuring accuracy of spiral metering scale, makes measuring accuracy not be subject to storehouse to press the impact changing, and without artificial periodic calibrating, the error in dipping of long-term operation is continuously below 0.5%.
Description
Technical field
The utility model relates to the dynamic metering equipment of powder material, specifically a kind of automatic Calibration spiral metering scale.
Background technology
Spiral metering scale (being again screw reamer) is a kind of traditional powder material dynamic metering equipment, and this spiral metering scale generally has single tube individual layer and two kinds of versions of Double-tube double-layer, and single tube individual layer completes metering simultaneously and carries; Double-tube double-layer structure, completes current stabilization and conveying by upper strata, and lower floor realizes metering and carries.Spiral weighing balance, because adopt impeller to carry, can not be realized sealing, so can not bear larger pressure, generally uses more in atmospheric pressure environment.The principle of work of spiral metering scale is: powder material is by charging aperture through impeller helical feed, and the LOAD CELLS that electronic weighing is set up detects the weight of material and produces to be proportional to the voltage signal of the load of weighing.Meanwhile, tachogenerator detects the rate signal of main shaft of screw conveyor, and weight signal and rate signal are received by controller, after via controller computing, draws instantaneous delivery and cumulative weight value.Control system by actual flow signal and set flow signal compare, by PID regulation output control signal to frequency converter, the speed of dynamic adjustments feeding reamer, thus realize dosing.The maximum feature of spiral metering scale is that the length of screw feeder can be determined by on-site actual situations, can realize the dynamic measurement of powder material, in the process of convey materials, there is no dust, equipment investment cost is relatively low, but this control mode and regulating device have determined steady material poor-performing, often cause regulating non-linear hour, variation, the spiral that particularly press in large capacity feed bin storehouse claim zero point drift all can affect largely measuring accuracy.
Summary of the invention
For solving the technical matters of above-mentioned existence, the utility model provides a kind of automatic Calibration spiral metering scale, can the measuring accuracy of spiral metering scale automatically be demarcated and be rectified a deviation, make measuring accuracy not be subject to storehouse to press the impact changing, without artificial periodic calibrating, the error in dipping of long-term operation is continuously below 0.5%.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of automatic Calibration spiral metering scale, comprise steady material spiral and metering screw, described metering screw is arranged at the below of steady material spiral and is attached thereto, described metering screw one end is provided with tachogenerator, bottom arranges LOAD CELLS, described tachogenerator and LOAD CELLS respectively with helix balance Instrument connection, also comprise feed bin static weighing scale and Programmable Logic Controller PLC, described feed bin static weighing scale is arranged at bin bottom, formed by feed bin load sensor and bunker scale Instrument connection, described bunker scale instrument, helix balance instrument is connected with Programmable Logic Controller PLC respectively.
The utility model is simple in structure, at bin bottom, static weighing scale is set, taking the continuous data of static weighing scale as benchmark, real time measure data by PLC and helix balance contrast, error exceedes 0.5%, automatically revise the calibration coefficient of helix balance instrument, reduce feed bin storehouse and press variation and the impact of helix balance zero point drift on measuring accuracy, without manually helix balance being carried out to periodic calibrating, ensure to the full extent the measuring accuracy of helix balance, can the in the situation that of long-time running, ensure that error is below 0.5%, increase work efficiency and work quality.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail:
This automatic Calibration spiral metering scale as shown in Figure 1, comprise steady material spiral 7 and metering screw 8, described metering screw 8 is arranged at the below of steady material spiral 7 and is attached thereto, described metering screw 8 one end are provided with tachogenerator 6, bottom arranges LOAD CELLS 5, described tachogenerator 6 is connected with helix balance instrument 4 respectively with LOAD CELLS 5, also comprise feed bin static weighing scale and Programmable Logic Controller PLC3, described feed bin static weighing scale is arranged at feed bin 1 bottom, connected to form by feed bin load sensor 2 and bunker scale instrument 9, described bunker scale instrument 9, helix balance instrument 4 is connected with Programmable Logic Controller PLC3 respectively.
The utility model is in actual application, and powder material is delivered to metering screw 8 by feed bin 1 through steady material spiral 7, and the LOAD CELLS 5 on metering screw 8 detects the weight of material and produces to be proportional to the voltage signal of the load of weighing.Meanwhile, tachogenerator 6 detects rate signal, and weight signal and rate signal are received by helix balance instrument 4, after via controller computing, draws instantaneous delivery and cumulative weight value, and this value is carried out Real-time Collection by Programmable Logic Controller PLC3.Along with the minimizing of feed bin 1 interior powder, load sensor 2 detects the variation of feed bin 1 weight simultaneously, and produces to be proportional to the voltage signal of the load of weighing.Weight signal is received by bunker scale instrument 9, after via controller computing, draws cumulative weight value, and this value is carried out Real-time Collection by Programmable Logic Controller PLC3.Programmable Logic Controller PLC3 contrasts with the discharge quantity of feed bin 1 in the unit interval and the metering result of helix balance instrument 4.Taking the static weighing data of feed bin 1 as benchmark, as the error in dipping of helix balance instrument 4 exceedes 0.5%, Programmable Logic Controller PLC3 output order revises the calibration coefficient of helix balance instrument 4 automatically, make the measuring accuracy infinite approach bunker scale instrument 9 of helix balance instrument 4 measure numerical value, thereby reach the object that accurate measurement is carried.
Certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art make in essential scope of the present utility model, also should belong to protection domain of the present utility model.
Claims (1)
1. an automatic Calibration spiral metering scale, comprise steady material spiral (7) and metering screw (8), described metering screw (8) is arranged at the below of steady material spiral (7) and is attached thereto, described metering screw (8) one end is provided with tachogenerator (6), bottom arranges LOAD CELLS (5), described tachogenerator (6) is connected with helix balance instrument (4) respectively with LOAD CELLS (5), it is characterized in that, also comprise feed bin static weighing scale and Programmable Logic Controller PLC(3), described feed bin static weighing scale is arranged at feed bin (1) bottom, connected to form by feed bin load sensor (2) and bunker scale instrument (9), described bunker scale instrument (9), helix balance instrument (4) is connected with Programmable Logic Controller PLC (3) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420375749.XU CN203965001U (en) | 2014-07-09 | 2014-07-09 | A kind of automatic Calibration spiral metering scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420375749.XU CN203965001U (en) | 2014-07-09 | 2014-07-09 | A kind of automatic Calibration spiral metering scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203965001U true CN203965001U (en) | 2014-11-26 |
Family
ID=51925568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420375749.XU Expired - Fee Related CN203965001U (en) | 2014-07-09 | 2014-07-09 | A kind of automatic Calibration spiral metering scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203965001U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609212A (en) * | 2014-12-08 | 2015-05-13 | 徐州徐工筑路机械有限公司 | Powder residual amount monitoring method and device |
| CN106932060A (en) * | 2017-03-28 | 2017-07-07 | 山东博硕自动化技术有限公司 | A kind of material continuous metering distribution |
| CN111061212A (en) * | 2019-12-31 | 2020-04-24 | 盛瑞传动股份有限公司 | Automatic calibration control method and device based on highly integrated measurement system |
-
2014
- 2014-07-09 CN CN201420375749.XU patent/CN203965001U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609212A (en) * | 2014-12-08 | 2015-05-13 | 徐州徐工筑路机械有限公司 | Powder residual amount monitoring method and device |
| CN106932060A (en) * | 2017-03-28 | 2017-07-07 | 山东博硕自动化技术有限公司 | A kind of material continuous metering distribution |
| CN111061212A (en) * | 2019-12-31 | 2020-04-24 | 盛瑞传动股份有限公司 | Automatic calibration control method and device based on highly integrated measurement system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203845039U (en) | Double-spiral quick conveying device with accurate weighing function | |
| CN203965001U (en) | A kind of automatic Calibration spiral metering scale | |
| AU2020272448A1 (en) | Calibration method for liquid flowmeter | |
| CN102658975A (en) | High-pressure conveyed continuous powder body quantitative feeding device | |
| CN2581955Y (en) | Weighing meter for continuously reducing powder material | |
| CN201413181Y (en) | Spiral weighing system | |
| CN207030492U (en) | Powder metering conveying device | |
| CN103273582B (en) | The static mixing system of a kind of High Precision Automatic weight-loss type and method for mixing thereof | |
| CN209727227U (en) | A kind of metering device | |
| CN202864313U (en) | High precision powder ingredients supply system | |
| CN106932060A (en) | A kind of material continuous metering distribution | |
| CN202382833U (en) | Speed governing metering screw weighing device | |
| CN202594397U (en) | High-pressure powder continuous conveying and quantitative feeding device | |
| CN204788617U (en) | Automatic blending system based on PLC | |
| CN204388580U (en) | The quantitative feeding equipment of a kind of raw material for dry method cement rotary kiln | |
| CN106865260A (en) | Powder metering induction system and powder metering carrying method | |
| CN105836421B (en) | A kind of multistage solid-handling equipment inter-linked controlling method | |
| CN206579010U (en) | One kind is used for the on-line automatic regulating system of silicone adhesive quantity-produced flow | |
| CN207957172U (en) | A kind of dynamic measurement system for pulverulent material | |
| CN106696111B (en) | Flow online automatic adjusting method for continuous production of silicone adhesive | |
| CN108891939A (en) | A kind of weighing device and weighing method of screw(-type) feeder | |
| CN104200119B (en) | Coal dust conveying capacity soft instrument based on Roots blower blast | |
| CN204038437U (en) | Spiral is weighed charging gear | |
| CN204489856U (en) | A kind of weighing spiral feeder | |
| CN202057400U (en) | Device for static measurement of cement clinker during intermittent transmission |
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 |
Granted publication date: 20141126 Termination date: 20150709 |
|
| EXPY | Termination of patent right or utility model |