CN2364443Y - Vibration type continuous constant-weight feeder - Google Patents
Vibration type continuous constant-weight feeder Download PDFInfo
- Publication number
- CN2364443Y CN2364443Y CN 99220008 CN99220008U CN2364443Y CN 2364443 Y CN2364443 Y CN 2364443Y CN 99220008 CN99220008 CN 99220008 CN 99220008 U CN99220008 U CN 99220008U CN 2364443 Y CN2364443 Y CN 2364443Y
- Authority
- CN
- China
- Prior art keywords
- vibrator
- measuring tank
- type continuous
- control instrument
- metering tank
- 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
Images
Landscapes
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
Abstract
The utility model relates to a vibration type continuous quantitative feeder. The utility model is composed of a metering tank, a feeding device, a weighing sensor, a vibration exciter, a control instrument, a machine seat, etc., wherein, a feed port of the metering tank is connected with a discharge port of the feeding device. Both ends of the weighing sensor are respectively connected with the metering tank and the machine seat. The vibration exciter is connected with the metering tank. The output ends of the control instrument are respectively connected with power parts of the vibration exciter and the feeding device. According to feed rate which is required, the instantaneous weight and the movable speed of material inside the metering tank can be respectively set, the instantaneous weight value is detected by the weighing sensor, and the feedback and the regulation of the feeding device can be realized. According to the movable speed which is set, the metering tank is driven to vibrate and deliver the material.
Description
The utility model relates to a kind of dosing equipment---oscillatory type continuous dosing of very device.
When the technological process feed metering of solid bulk material, adopt belted electronic balance and bunker scale mostly at present.Belted electronic balance incompatibility high-temperature material, and complex structure, maintenance cost height, can not seal, bunker scale can not be realized continuous-feeding.The weightless scale of Germany Carl Schenck AG adopts the quasistatic mode of weighing, and have higher measuring accuracy, but volume is excessive, limited by usage space.The Weighing method of existing a kind of vibrating feed and equipment (patent No. ZL93109467.4) are made up of load sensor, acceleration transducer, vibrator, feeder trough, weigh groove and signal processing system, need with load sensor sense weight signal, use acceleration transducer detected amplitude signal, and calculate the translational speed of material, and then draw the flow that is transferred material by amplitude data.Because measuring tank and feeder trough synchronous vibration, during FEEDBACK CONTROL, regulate very difficulty of re-set target value that an execution parameter changes two variablees simultaneously, as attempt to change when weighing the translational speed of material in the groove, the instantaneous weight of material also changes thereupon, and the variation of instantaneous weight can influence translational speed, therefore measuring accuracy is not high, particularly (attempting constant storehouse presses when feed bin pressure changes, be very difficult in industrial environment) time, influenced the vibration characteristics of system, destroyed the corresponding relation of acceleration signal and material translational speed, make acceleration transducer can not accurately detect translational speed, produce than mistake, thereby influence the feed measuring accuracy.
The purpose of this utility model is to provide a kind of equipment of continuous dosing of very during with the mode of vibration convey materials, makes signal Processing and control at unitary variant, the independent respectively control of instantaneous weight and translational speed, do not disturb mutually, debugging is convenient, and equipment work is stable, and measuring accuracy is higher.
For achieving the above object, the oscillatory type continuous dosing of very device that the utility model provides is by drawing-in device 4, vibrator 3, measuring tank 1, compositions such as LOAD CELLS 2 and control instrument 5 and support 7, the charging aperture of measuring tank 1 connects the discharging opening of drawing-in device, vibrator 3 is connected with measuring tank 1, give measuring tank 1 with vibration transfer, material in the measuring tank 1 moves at the effect lower edge of exciting force throughput direction, the test side of LOAD CELLS 2 is connected with measuring tank 1, the other end is connected with support 7, its output signal connects control instrument 5, be used to detect the instantaneous weight of material in the measuring tank 1, drawing-in device 4 does not contact with measuring tank 1, the output control terminal of control instrument 5 connects the power part of vibrator 3 and drawing-in device 4 respectively, controls vibrator 3 and drawing-in device 4 respectively.Drawing-in device 4 is connected the feed bin discharging opening, is used for the inlet feeding to measuring tank 1, and its feeding capacity passes through control instrument 5 FEEDBACK CONTROL by the output signal of LOAD CELLS 2.
When continuous-feeding, its delivery rate is the product of instantaneous weight and translational speed, according to required delivery rate, set the instantaneous weight and the translational speed of material in the measuring tank 1 respectively, detect the instantaneous weight value of material in the measuring tank 1 by sensor 2, and value is passed through control instrument 5 feedback regulation drawing-in devices 4 thus, the instantaneous weight of material in the measuring tank 1 is stabilized on the setting value, export corresponding vibration control driving parameter vibrator 3 and drive measuring tank 1 vibration according to setting translational speed, making the interior material of measuring tank connect the setting translational speed moves and is sent along throughput direction, the feeding coal of unit interval is added up, obtain accumulative total feed weight.
When weight in the vibrating mass (comprising material) when changing, the natural frequency of vibrational system, equivalent damping, amplitude versus frequency characte etc. change thereupon, even the controlled variable of vibrator is constant, amplitude also can change thereupon, and the corresponding relation of amplitude and translational speed is not accurate enough.Way by weight of material in the stabilimeter measuring tank, make vibration characteristics stable, drive controlling parameter of vibrator (as electric current, voltage, frequency or duty cycle square wave etc.) and material translational speed have good corresponding relation like this, and method can be measured this corresponding relation curve easily by experiment.For the equipment of same model, this corresponding relation is constant (when bigger variation took place the material self character, timing signal was revised at the scene).Above-mentioned experimental technique is as follows: set an instantaneous gravimetric value, regulating drawing-in device 4 is stabilized on this value measuring tank 1 interior weight of material, different vibrator drive controlling parameters is set at regular intervals, feed weight in each parameter point certain hour of actual respectively weighing also calculates translational speed, can obtain the corresponding relation data of vibrator controlled variable and translational speed, this data processing is become smooth curve or find out approximate function to deposit control instrument in, can realize step-less adjustment.Usually, instantaneous weight can be fixed on the numerical value, regulates feeding coal by changing translational speed, and several instantaneous weight values also can be set, and makes equipment be in optimum Working.The fixing drive controlling parameter of vibrator is provided with the way of instantaneous weight, the purpose that also can realize regulating delivery rate by change.
Because material is supplied with by drawing-in device 4 in the measuring tank 1, its instantaneous weight is subjected to drawing-in device 4 controls; The translational speed of material is by vibrator 3 controls in the measuring tank 1, and measuring tank does not contact mutually, works alone with drawing-in device, thereby can regulate respectively.
The utility model is only gathered weighing-up wave, by weighing-up wave feedback regulation drawing-in device, overcome the influence of factors such as feed bin pressure fully, the corresponding relation data output control of the vibration parameters that the translational speed of material is directly pre-deposited by the control instrument foundation--translational speed, do not need other detection, the independent respectively control of instantaneous weight and translational speed is not disturbed mutually, and debugging convenience, working stability, feed measuring accuracy are higher.
Description of drawings:
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the structural representation of the utility model embodiment two.
As shown in Figure 1, described specialized equipment is made up of drawing-in device 4, vibrator 3, vibration damper 6, measuring tank 1, LOAD CELLS 2, support 7 and control instrument 5 etc.Measuring tank 1 is rigidly connected with vibrator 3, and is connected with the test side of LOAD CELLS 2 by vibration damper 6, and the other end of LOAD CELLS 2 is fixed on the support 7.Vibration damper 6 can be selected rubber blanket or spring, vibrator 3 adopts the electric and magnetic oscillation mode, constitute by leaf spring 3c, electromagnet 3b, armature 3a etc., electromagnet 3b is the power part of vibrator 3, by the fixed frequency ac square wave drives of control instrument 5 output (because ac square wave is the secondary power supply after handling, not disturbed by fluctuating factors such as line voltage, frequency, has very high stability, the stability of driving circuit directly influences the feed precision), the dutycycle that changes ac square wave can change the electric current of electromagnet 3b, and then changes the amplitude of vibrator 3; Drawing-in device 4 can adopt rotary disc feeder, screw feeder etc., and present embodiment adopts electric and magnetic oscillation feeding manner simple in structure, drives (because of forming closed loop adjustment with load cell signal, not needing very high lasting accuracy) by ac square wave or ghyristor circuit.Because what LOAD CELLS 2 detected is the general assembly (TW) that comprises material in vibrator 3, measuring tank 1 and the groove, its output useful signal proportion is less, but because the effect of vibration damper 6, the alternation amplitude of signal is also less, and the zero clearing of LOAD CELLS 2 calibration is very convenient, as long as stop the material in feeding and the emptying measuring tank.
As shown in Figure 2, vibrator 3 is connected with measuring tank 1 by LOAD CELLS 2, vibrator 3 is fixed on the support 7 by vibration damper 6, what LOAD CELLS 2 detected like this is the weight of material in measuring tank 1 and the groove, the useful signal large percentage, but the alternation amplitude of signal is also bigger, to certain influence is arranged in serviceable life of sensor.
Claims (5)
1. oscillatory type continuous dosing of very device, by measuring tank (1), sensor (2), drawing-in device (4), vibrator (3), support (7) and control instrument compositions such as (5), the charging aperture of measuring tank (1) connects the discharging opening of drawing-in device (4), the output signal of sensor (2) connects control instrument (5), it is characterized in that: described sensor (2) is LOAD CELLS, its test side is connected with measuring tank (1), the other end is connected with support (7), vibrator (3) is connected with measuring tank (1), and the output terminal of the output control circuit of control instrument (5) connects the power part of vibrator and drawing-in device respectively.
2. oscillatory type continuous dosing of very device according to claim 1 is characterized in that: measuring tank (1) is rigidly connected with vibrator (3).
3. oscillatory type continuous dosing of very device according to claim 1 is characterized in that: be connected by sensor (2) between vibrator (3) and measuring tank (1), vibrator (3) is connected with support (7) by vibration damper (6).
4. oscillatory type continuous dosing of very device according to claim 1 and 2 is characterized in that: be connected with vibration damper (6) between measuring tank (1) and sensor (2).
5. oscillatory type continuous dosing of very device according to claim 1 is characterized in that: described vibrator (3) is made the vibrator of power part for adopting electromagnet (3b), is driven by the circuit and square-wave of the adjustable dutycycle of control instrument (5) output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99220008 CN2364443Y (en) | 1999-02-12 | 1999-02-12 | Vibration type continuous constant-weight feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99220008 CN2364443Y (en) | 1999-02-12 | 1999-02-12 | Vibration type continuous constant-weight feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2364443Y true CN2364443Y (en) | 2000-02-16 |
Family
ID=34010820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99220008 Expired - Fee Related CN2364443Y (en) | 1999-02-12 | 1999-02-12 | Vibration type continuous constant-weight feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2364443Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091663A (en) * | 2017-07-03 | 2017-08-25 | 南京农业大学 | A kind of the real-time of combined seed and fertilizer drill broadcasts amount detecting device and detection method |
| CN110228693A (en) * | 2013-07-31 | 2019-09-13 | 昕芙旎雅有限公司 | Feed appliance |
| CN112313485A (en) * | 2018-07-10 | 2021-02-02 | 新东工业株式会社 | Metering device |
-
1999
- 1999-02-12 CN CN 99220008 patent/CN2364443Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228693A (en) * | 2013-07-31 | 2019-09-13 | 昕芙旎雅有限公司 | Feed appliance |
| CN110228693B (en) * | 2013-07-31 | 2022-01-11 | 昕芙旎雅有限公司 | Feeding device |
| CN107091663A (en) * | 2017-07-03 | 2017-08-25 | 南京农业大学 | A kind of the real-time of combined seed and fertilizer drill broadcasts amount detecting device and detection method |
| CN112313485A (en) * | 2018-07-10 | 2021-02-02 | 新东工业株式会社 | Metering device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5767455A (en) | Apparatus and method for controlling a vibratory feeder in a weighing machine | |
| CN203127792U (en) | Metering device for powder and particles | |
| CN202063536U (en) | Double-speed-regulation continuous metering feeding device for spiral conveyer and omniseal belt conveyer scale | |
| CN101169360B (en) | Powder material automatic rationing fluidity test device and method | |
| CN107640609B (en) | Screw proportioning materials machine controller based on machine learning | |
| JP2009540323A (en) | Balance weight type dispensing system | |
| CN100486868C (en) | Metering and separate loading machine for bulk material | |
| US2366075A (en) | Weighing and feeding device | |
| CN1111770C (en) | Continuous quantitative feeding control method and its equipment | |
| RU2387957C1 (en) | Belt-conveyor weigher | |
| WO2002060665A1 (en) | Device and method for weighing concrete material | |
| CN100348955C (en) | Device for effecting continuous gravimetric dosing | |
| CN2364443Y (en) | Vibration type continuous constant-weight feeder | |
| CN209727227U (en) | A kind of metering device | |
| CN108726205A (en) | A kind of continuous, uniform, the accurate charging gear of powder | |
| CN202382833U (en) | Speed governing metering screw weighing device | |
| CN111302000A (en) | Quantitative feeding system | |
| CN207263282U (en) | The control system of amorphous refractory automatic blending production line | |
| CN207570643U (en) | A kind of aggregate continuous weighting system that there is automatic school and claim | |
| CN107697660B (en) | Screw material disperser control method based on machine learning | |
| JPH10509801A (en) | Method and apparatus for continuous weight measurement and mass flow rate determination of a flowable substance | |
| CN204528554U (en) | Double belt Weighing feeder | |
| CN208516513U (en) | A kind of continuous, uniform, the accurate charging gear of powder | |
| CN102615711A (en) | Powder material metering and conveying device of mixing plant and control method of powder material metering and conveying device | |
| JP2003294519A (en) | Method for measuring amount of feed in continuous powder feeder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |