CN103482099A - Accurate quantitative control system and accurate quantitative control method in pasty fluid filling - Google Patents
Accurate quantitative control system and accurate quantitative control method in pasty fluid filling Download PDFInfo
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- CN103482099A CN103482099A CN201310395748.1A CN201310395748A CN103482099A CN 103482099 A CN103482099 A CN 103482099A CN 201310395748 A CN201310395748 A CN 201310395748A CN 103482099 A CN103482099 A CN 103482099A
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- bottle placer
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000012530 fluid Substances 0.000 title claims abstract description 15
- 235000011837 pasties Nutrition 0.000 title abstract 5
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 239000006210 lotion Substances 0.000 claims description 77
- 238000004445 quantitative analysis Methods 0.000 claims description 19
- 238000012360 testing method Methods 0.000 claims description 14
- 239000000047 product Substances 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000001502 supplementing effect Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 230000001052 transient effect Effects 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 3
- 230000004069 differentiation Effects 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 230000003139 buffering effect Effects 0.000 description 2
- 239000006052 feed supplement Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229940023462 paste product Drugs 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009924 canning Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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Abstract
The invention discloses an accurate quantitative control system and an accurate quantitative control method in pasty fluid filling. The control system comprises a filling machine, a pressure transmitter, a constant temperature pipeline and a control unit, wherein the pressure transmitter is arranged on a feeding pipeline. The pressure transmitter is used for monitoring the instantaneous pressure of pasty fluid in the feeding pipeline, and feeds back the pressure to the control unit; the control unit continually modifies the speed, set in the system, of a filling motor of the filling machine by adopting a PID (Proportion Integration Differentiation) servo adjustment mode according to the received pressure parameters of the pasty fluid, so that the automatic control of offset trend is realized, the filling capacity is more accurately controlled, and the condition that filling is carried out after the traditional filling machine sets the speed of the filling motor and a valve-driven motor is avoided; when the filling capacity is not accurate, the filling capacity of a dozen of bottles is lagged behind production, production waste is caused, the production efficiency is reduced, and the cost is increased. According to the accurate quantitative control system and the accurate quantitative control method in pasty fluid filling, PID control is adopted, the motor speed of the system is continually modified, the dynamic adjustment is realized, and the filling capacity of the filling system is adjusted in time.
Description
Technical field
The invention belongs to the quantitative filling technical field, be specifically related to the filling middle accurate quantitative analysis control system of a kind of lotion and control method thereof.
Background technology
Fluid quantitative is filling, very common in the daily use chemicals industry, generally speaking, lotion viscosity is when 500CP is following, and quantitative filling basically can accurate quantitative analysis, but the flowing power of full-bodied lotion is poor, the composition that lotion contains high saturation vapour pressure or resultant, in high-speed canning, easily produce vapour bubble, form cavity, thereby affected the quality of filling capacity and product.
Traditional packaging process is set filling speed in bottle placer, carry out the filling of lotion, carry out again the weight test after completing sealing, cutting the tail operation, and now, produce the distance of more than 10 bottle has been arranged when filling with bottle placer, cause quality monitoring to lag behind, the efficiency that impact is produced, fraction defect is high, waste material and human resources.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of quantitatively accurately, monitor the filling middle accurate quantitative analysis control system of lotion and control method thereof timely.
In order to address the above problem, the present invention is achieved by following technical scheme:
The filling middle accurate quantitative analysis control system of lotion of the present invention, comprise bottle placer, be arranged on pressure transformer and control unit on feed pipe;
Described bottle placer comprises storage device and for regulating the mechanical adjusting mechanism of filling capacity;
Described pressure transformer, for testing the transient pressure of lotion in feed pipe, and the pressure data that will test feeds back to control unit;
Described control unit receives the pressure parameter of pressure transformer transmission, and pressure parameter is processed, and regulates the mechanical adjusting mechanism of bottle placer according to pressure data, thereby controls more accurately filling capacity.
Further, be provided with the Constant-temp. pipeline of guaranteeing lotion viscosity stabilization in pipeline in described feed pipe, in described Constant-temp. pipeline, be provided with temperature control equipment, described temperature control equipment is connected with control unit.
Further, the filling middle accurate quantitative analysis control system of lotion also is provided with the weight proving installation, for testing the weight of quantitative cavity volume after filling, the product weight that described weight proving installation will be tested feeds back to control unit, and control unit is is further regulated and controled the filling amount of bottle placer according to the product weight parameter.
Further, on the storage device of described bottle placer, be provided with feed supplementing device, for the lotion amount of the storage device that supplements bottle placer, described feed supplementing device is connected with control unit.
The filling middle accurate quantitative analysis control method of lotion of the present invention comprises the following steps:
(1) set the speed of bottle placer valve drive motor and the speed of filling motor according to the capacity of lotion viscosity and quantitative cavity volume on control unit, bottle placer valve drive motor is controlled the opening time of material inlet valve by cam, the speed of described filling motor is controlled the mobile speed of lotion;
(2) the filling machine operation of bottle placer, to the filling lotion of quantitative cavity volume;
(3) by the transient pressure of the monitoring of the pressure transformer in the feed pipe that is arranged on quantitative cavity volume lotion;
(4) pressure transmission when pressure transformer will measure each state of lotion in the feed pipe of quantitative cavity volume is to control unit;
(5) control unit receives lotion pressure, the speed of the filling motor of the bottle placer of constantly setting in the Correction and Control unit, thus control exactly filling volume.
Further, pressure transformer is tested in described step (3) when each filling, and fluid pressure is divided into four-stage, respectively:
First stage pressure: lotion starts to enter the instantaneous pressure of quantitative cavity volume, and lotion proceeds to flow regime by quiescence, and according to hydromechanical principle Bernou1li equation, fluid pressure now has downward tendency;
Subordinate phase pressure: in lotion enters and determines volumetric capacity chamber process, lotion has one period that balance is mobile, and pressure ratio now is more steady, but, according to hydromechanical principle, pressure parameter now is steady but on the low side;
Phase III pressure: stop at lotion the moment of flowing, lotion, under effect of inertia, must produce the effect of fluid liquid hammer, and the pressure now monitored must have tendency upwards;
Fourth stage pressure: lotion is just static after charging stops, and now pressure is determined by storage device storing amount;
By test to the pressure parameter of four-stage while being delivered to control unit, utilize the synchronization time parameter to carry out staging treating to pressure data.
Further, the pressure data of the stages that described control unit arrives according to test, regulated and controled each position of system;
Described control unit is according to the pressure parameter of first stage, if the pressure parameter in this stage is compared when stopping charging, exceeded predefined difference of pressure, show and may in lotion, bubble occur, now should reduce the speed of the filling motor of bottle placer, to guarantee product-filled quality.
Described control unit, according to the pressure parameter of subordinate phase, can be used as the indirect reference of product in the feed pipe temperature, and pressure is on the low side, shows that temperature is on the low side, and resistance is large, therefore, can regulate according to this pressure parameter the temperature of Constant-temp. pipeline in feed pipe.
If the pressure parameter of phase III is too high, it is inappropriate that while showing the bottle placer valve closing, buffering may have the debugging of fault or machine, should remind the maintainer to detect the valve working state of bottle placer.
Described control unit is according to the pressure parameter of fourth stage, and whether the storing amount of monitoring storage device, need feed supplement or stop feed supplement to storage device according to the storing amount control feed supplementing device of storage device simultaneously.
Further, weight data after the quantitative cavity volume that described control unit is tested according to the weight proving installation is filling, by the PID servocontrol, realize that movement tendency controls automatically, further revise the speed of the filling motor of bottle placer, make filling capacity more accurate.
Compared with prior art, the invention has the beneficial effects as follows:
The pressure parameter of the four-stage of circulation when the present invention passes through the quantitative cavity volume of test bottle placer quantitative filling, and these four groups of pressure parameters are distinguished and are used, the pressure parameter correspondence of different phase the mode of operation at each position of bottle placer, pressure parameter according to each stage, by measuring its difference of pressure, resistance and feed time, accurately control the each filling volume of bottle placer.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, wherein:
Fig. 1 is the systematic schematic diagram of realizing that the present invention uses;
Wherein: the 1-feed supplementing device; The 2-storage device, 3-Constant-temp. pipeline, 4-pressure transformer, 5-mechanical adjusting mechanism, the quantitative cavity volume of 6-, 7-weight proving installation, 8-control unit.
The specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
As shown in Figure 1, realize the system of the filling middle accurate quantitative analysis control method of lotion of the present invention, comprise bottle placer, be arranged on feed supplementing device 1 and the control unit 8 of bottle placer front end, described bottle placer comprises storage device 2 and mechanical adjusting mechanism 5, described control unit comprises the PLC controller, adopt the servo regulative mode of PID to be regulated and controled bottle placer, thereby control the capacity of the filling paste product of bottle placer, described mechanical adjusting mechanism 5 includes by-pass valve control open-interval valve drive motor, described drive motor is by controlling cam, thereby the time that by-pass valve control is opened, the filling motor of described control lotion flowing velocity, described filling motor is servomotor.
Be provided with memory on described control unit, be provided with Constant-temp. pipeline 3 and pressure transformer 4 on feed pipe between the storage device 2 of described bottle placer and quantitative cavity volume 6, the lotion pressure transmission that described pressure transformer 4 will be tested is to control unit 8, described control unit 8, according to the pressure parameter received, is regulated Constant-temp. pipeline 3 and feed supplementing device 1 respectively.
Described system end also is provided with Weight-measuring device 7, described Weight-measuring device 7 is connected with control unit 8, the weight that measures product is fed back on control unit 8 in time, and control unit 8, according to the weight of product, is adjusted the each filling volume of bottle placer again.
The filling middle accurate quantitative analysis control method of lotion of the present invention is:
1) set the speed of bottle placer valve drive motor according to the capacity of lotion viscosity and quantitative cavity volume on control unit, thereby control the time that material inlet valve is opened, set the speed of filling servomotor, thereby control more accurately filling capacity;
2) bottle placer valve opening, the filling motor of bottle placer is to filling lotion in quantitative cavity volume.
3) pressure transformer is tested the transient pressure of the lotion in the feed pipe of quantitative cavity volume, and the pressure transmission that will test is stored to control unit.
The pressure of the lotion that 4) control unit monitors according to pressure transformer, control the speed of the filling motor of bottle placer by the PID servo-control unit.
5) system is provided with the weight proving installation, for measuring the weight after the filling lotion of quantitative cavity volume, the weight proving installation feeds back to the product weight measured in control unit, control unit is processed weight parameter, again regulate the speed of the filling motor of bottle placer, by double check, control more accurately the filling volume of bottle placer.
6) transient pressure that described pressure transformer is tested each filling circulation of lotion is divided into four-stage, respectively:
First stage pressure: lotion starts to enter the moment of quantitative cavity volume, and lotion proceeds to flow regime by quiescence, and according to hydromechanical principle Bernou1li equation, fluid pressure now has downward tendency;
Subordinate phase pressure: in lotion enters and determines volumetric capacity chamber process, lotion has the time of one section smooth flow, and pressure ratio now is more steady, but, according to hydromechanical principle, pressure parameter now is steady but on the low side;
Phase III pressure: stop at lotion the moment of flowing, lotion, under effect of inertia, must produce the effect of fluid liquid hammer, and the pressure now monitored must have tendency upwards;
Fourth stage pressure: lotion is just static after charging stops, and now pressure is determined by storage device storing amount;
Pressure transformer is transferred to control unit by the pressure parameter of four-stage in above-mentioned each circulation, and the pressure data of stages is carried out to staging treating, control respectively each position of bottle placer for the pressure data of four-stage, thereby reach the filling volume of accurate control.
7) pressure data of first stage, according to fluid mechanics principle: fluid velocity is larger, pressure is less, so this staged pressure parameter reflection is the speed of paste product, if difference of pressure has exceeded predefined value, show in product and bubble may occur, now should reduce the speed of the filling motor of bottle placer, to guarantee product-filled quality.
8) pressure data of subordinate phase, what reflect is the resistance of lotion, the viscosity of lotion is high, and the internal resistance that flows is just large, and the viscosity of lotion has certain relation with temperature, therefore can control according to the difference of pressure of subordinate phase the temperature of feed pipe, if the pressure parameter of subordinate phase is on the low side, show that resistance is large, should improve the temperature of feed pipe, can strengthen the flow of hot water in Constant-temp. pipeline, or improve the temperature of hot water in Constant-temp. pipeline.
9) pressure data of phase III, what reflect is the speed of response that bottle placer stops filling lotion, if the pressure parameter of phase III is too high, while showing the valve closing of bottle placer, buffering may have fault, and now the maintainer should be according to the valve working situation of this parameter testing bottle placer.
10) pressure data of fourth stage, now lotion is static, if pressure parameter is too low or too high, the storing amount mal that means the storage device of bottle placer, control unit can be according to the pressure parameter of fourth stage, and whether control feed supplementing device needs to supplement lotion or stop supplementing lotion to storage device.
Other structure of the filling middle accurate quantitative analysis control system of the described employing lotion of the present embodiment and control method thereof is referring to prior art.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, do not break away from the technical solution of the present invention content therefore every, any modification, equivalent variations and the modification above embodiment done according to technical spirit of the present invention, all still belong in the scope of technical solution of the present invention.
Claims (8)
1. the filling middle accurate quantitative analysis control system of lotion, is characterized in that: comprise bottle placer, be arranged on pressure transformer and control unit on feed pipe;
Described bottle placer comprises storage device and for regulating the mechanical adjusting mechanism of filling capacity;
Described pressure transformer, for testing the transient pressure of lotion in feed pipe, and the pressure data that will test feeds back to control unit;
Described control unit receives the pressure parameter of pressure transformer transmission, and pressure parameter is processed, and regulates the mechanical adjusting mechanism of bottle placer according to pressure data, thereby controls more accurately filling capacity.
2. the filling middle accurate quantitative analysis control system of lotion according to claim 1, it is characterized in that: be provided with the Constant-temp. pipeline of guaranteeing lotion viscosity stabilization in pipeline in described feed pipe, be provided with temperature control equipment in described Constant-temp. pipeline, described temperature control equipment is connected with control unit.
3. the filling middle accurate quantitative analysis control system of lotion according to claim 1, it is characterized in that: the filling middle accurate quantitative analysis control system of lotion also is provided with the weight proving installation, for testing the weight of quantitative cavity volume after filling, the product weight that described weight proving installation will be tested feeds back to control unit, and control unit is is further regulated and controled the filling amount of bottle placer according to the product weight parameter.
4. the filling middle accurate quantitative analysis control system of lotion according to claim 1 is characterized in that: be provided with feed supplementing device on the storage device of described bottle placer, for the lotion amount of the storage device that supplements bottle placer, described feed supplementing device is connected with control unit.
5. the control method of the filling middle accurate quantitative analysis control system of lotion according to claim 1, it is characterized in that: described quantitative control methodin comprises the following steps:
(1) set the speed of bottle placer valve drive motor and the speed of filling motor according to the capacity of lotion viscosity and quantitative cavity volume on control unit, bottle placer valve drive motor is controlled the opening time of material inlet valve by cam, the speed of described filling motor is controlled the mobile speed of lotion;
(2) the filling machine operation of bottle placer, to the filling lotion of quantitative cavity volume;
(3) by the transient pressure of the monitoring of the pressure transformer in the feed pipe that is arranged on quantitative cavity volume lotion;
(4) pressure transmission when pressure transformer will measure each state of lotion in the feed pipe of quantitative cavity volume is to control unit;
(5) control unit receives lotion pressure, the speed of the filling motor of the bottle placer of constantly setting in the Correction and Control unit, thus control exactly filling volume.
6. the filling middle accurate quantitative analysis control method of lotion according to claim 5 is characterized in that: in described step (3), pressure transformer is tested when each filling, and fluid pressure is divided into four-stage, respectively:
First stage pressure: lotion starts to enter the moment of quantitative cavity volume, pressure when lotion proceeds to flow regime by quiescence;
Subordinate phase pressure: enter in the process of quantitative volumetric capacity chamber the pressure during lotion smooth flow at lotion;
Phase III pressure: stop mobile moment at lotion, lotion, under effect of inertia, produces the pressure that the effect of fluid liquid hammer produces;
Fourth stage pressure: lotion after charging stops, pressure when static;
By test to the pressure parameter of four-stage while being delivered to control unit, utilize the synchronization time parameter to carry out staging treating to pressure data.
7. the filling accurate quantitative analysis control method of lotion according to claim 6 is characterized in that: the pressure data of the stages that described control unit arrives according to test is regulated and controled each position of system;
Described control unit, according to the pressure parameter of first stage, is regulated the speed of the filling motor of bottle placer.
Described control unit, according to the pressure parameter of subordinate phase, is regulated the temperature of Constant-temp. pipeline in feed pipe.
According to the pressure parameter of phase III, detect the valve working state of bottle placer.
Described control unit, according to the pressure parameter of fourth stage, is monitored the storing amount of storage device in bottle placer.
8. the filling accurate quantitative analysis control method of lotion according to claim 5, it is characterized in that: the weight data after the quantitative cavity volume that described control unit is tested according to the weight proving installation is filling, by the PID servocontrol, further revise the speed of the filling motor of bottle placer.
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| CN201310395748.1A CN103482099B (en) | 2013-09-03 | 2013-09-03 | Accurate quantitative control system and control method thereof during lotion is filling |
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| CN201310395748.1A CN103482099B (en) | 2013-09-03 | 2013-09-03 | Accurate quantitative control system and control method thereof during lotion is filling |
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| CN103482099B CN103482099B (en) | 2016-06-08 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103869797A (en) * | 2014-03-31 | 2014-06-18 | 立白日化有限公司 | Intelligent management system of filling production line |
| CN106113312A (en) * | 2016-08-23 | 2016-11-16 | 鹤山联塑实业发展有限公司 | A kind of organotin automatic adding device and detection monitoring method |
| CN108275637A (en) * | 2018-03-28 | 2018-07-13 | 长春工业大学 | A kind of essential oil bottle placer and its accurate quantification control method |
| CN109956068A (en) * | 2017-12-14 | 2019-07-02 | 克罗内斯股份公司 | Method and apparatus for filling filling product |
| CN111661378A (en) * | 2020-05-19 | 2020-09-15 | 多派工业技术(上海)有限公司 | Quantitative online feedback system and method for automatic packaging machine |
| CN112758394A (en) * | 2019-10-21 | 2021-05-07 | 克罗内斯股份公司 | Device and method for filling containers with a filling product |
| CN115193342A (en) * | 2022-07-04 | 2022-10-18 | 中国科学院过程工程研究所 | Method for stabilizing material flow in slurry state and device and application for realizing the same |
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| CN115193342A (en) * | 2022-07-04 | 2022-10-18 | 中国科学院过程工程研究所 | Method for stabilizing material flow in slurry state and device and application for realizing the same |
| CN115193342B (en) * | 2022-07-04 | 2024-04-05 | 中国科学院过程工程研究所 | A method for stabilizing the flow rate of slurry-state materials and a device and application thereof |
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| CN103482099B (en) | 2016-06-08 |
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