CN113582114A - Intelligent control method for filling sprayed quick-setting rubber asphalt waterproof coating - Google Patents
Intelligent control method for filling sprayed quick-setting rubber asphalt waterproof coating Download PDFInfo
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- CN113582114A CN113582114A CN202110817868.0A CN202110817868A CN113582114A CN 113582114 A CN113582114 A CN 113582114A CN 202110817868 A CN202110817868 A CN 202110817868A CN 113582114 A CN113582114 A CN 113582114A
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- 239000011248 coating agent Substances 0.000 title claims abstract description 35
- 238000000576 coating method Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000010426 asphalt Substances 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 239000003973 paint Substances 0.000 claims abstract description 11
- 238000005303 weighing Methods 0.000 claims abstract description 11
- 230000000630 rising effect Effects 0.000 claims abstract description 8
- 238000005429 filling process Methods 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000037237 body shape Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009924 canning Methods 0.000 description 5
- 238000010924 continuous production Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/30—Filling of barrels or casks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/007—Applications of control, warning or safety devices in filling machinery
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to the technical field of filling machines, in particular to an intelligent control method for filling sprayed quick-setting rubber asphalt waterproof paint, which is used for detecting the height H of a filling gunLAnd detecting the filling weight m by using a weighing sensor, calculating the actual height H of the coating in the tank body according to the inner diameter R and R of the tank body and the density rho of the coating, and synchronously lifting the filling gun along with the rise of the liquid level in the filling process to ensure the stability of the height difference H. The driving motor is controlled in a variable speed mode, when the filling coating is close to the rated weight W, the rotating speed of the motor is continuously reduced, the filling quantity Q is continuously reduced, the liquid level and the rising speed of the filling gun are reduced, and the filling gun stops until the rated filling weight W is reached. The invention has the beneficial effects that: the method of the invention is different from the traditional filling method for detecting the volume of the liquid by the flowmeter, and is suitable for filling the liquid with larger volume and certain liquid viscosity. The invention can ensure that the filling gun is stably controlled in real time, and the filling precision can be highAnd (5) lifting the web.
Description
Technical Field
The invention relates to the technical field of filling machines, in particular to an intelligent control method for filling sprayed quick-setting rubber asphalt waterproof paint.
Background
The spraying quick-setting rubber asphalt coating has a plurality of advantages as a novel environment-friendly coating, the coating medium is liquid, no filling equipment special for the quick-spraying coating is available on the market at present, and the filling operation is carried out by adopting a traditional mode. The structure of a traditional filling machine is shown in figure 1, a cylinder body of a lifting cylinder is fixed on the bottom surface, a piston is connected with a guide pillar, a filling gun, a control valve and a pipeline are controlled to lift by the piston of the lifting cylinder, a motor drives a pump to rotate, and the filling gun starts to fill after the control valve is opened. The traditional filling machine adopts a sectional type control method: the filling gun descends to a first filling point in the barrel and stops, the control valve is opened, the motor and the pump operate at a certain speed to pump materials, and filling is started; after filling for a certain time, the filling gun is lifted to a second filling point, and the multi-section type is analogized in turn. And after the canning weight is reached, stopping the operation of the motor, closing the control valve and finishing the canning.
The liquid level is raised in the filling process to be a continuous process, but the lifting of the filling gun in the mode is changed at intervals of a plurality of height positions, and the height difference h between the muzzle end of the filling gun and the liquid level is a changing process, so that the foam control and the weighing stability are not facilitated. The lifting interval of the filling gun is controlled by time, the controllability is poor, and the lifting amount is large when the load is light. After the filling weight is reached, the motor still needs to convey liquid to the tail end in the process from operation to stop, the control valve needs time for closing, the stability control of quantitative filling is not facilitated, and the precision can only reach 0.1 kg.
Therefore, the intelligent control filling method is designed to solve the problems.
Disclosure of Invention
The invention provides an intelligent control method for filling sprayed quick-setting rubber asphalt waterproof paint in order to make up for the defects in the prior art.
The invention is realized by the following technical scheme:
an intelligent control method for filling of spraying quick-setting rubber asphalt waterproof paint is disclosed, wherein a weighing sensor, a position sensor and a CPU controller are arranged in the filling machine, and the control method is characterized by comprising the following steps:
s1, positionSensor detects filling gun's height HL；
S2, detecting the weight m of the existing paint in the tank body by a weighing sensor;
s3, calculating the actual height H of the paint in the tank body by the CPU according to the inner diameter R and R of the tank body and the paint density rho;
s4, in the filling process, the CPU controller controls the filling gun to lift synchronously along with the rise of the liquid level, and the height difference H (H = H) is ensuredL-H) stability;
and S5, controlling a motor for driving the pump by adopting frequency conversion or variable speed, when the filling coating is close to the rated weight W, continuously reducing the rotating speed of the motor, continuously reducing the filling quantity Q, and reducing the liquid level and the lifting speed of the filling gun until the filling weight W is reached.
Further, in order to better realize the invention, the shape of the tank body of the filling machine is a structure that the upper part is in an inverted circular truncated cone shape, the middle part is in a cylindrical shape, and the lower part is in a circular truncated cone shape, and according to a circular truncated cone volume formula V = pi (R)2+ r2+ Rr) H/3, cylinder volume formula V = π R2H, and density formula ρ = m/V, can be derived
The height formula of the circular truncated cone H =3 m/rho pi (R)2+r2+Rr)
Cylinder height formula H = m/rho pi R2
In the formula
H is the height of the filled coating
m is the mass of the injected coating
Rho is the density of the coating
Pi is the circumferential ratio
R is the maximum radius of the inner diameter of the tank body
r is the minimum radius of the inner diameter of the can body.
Further, in order to better implement the present invention, the shape of the can body may divide the can body into three parts:
the height of H1 is V1 part, and the shape of the coating is in an inverted truncated cone shape;
h2 is a V2 part in height, and the coating is cylindrical in shape;
h3 is a V3 part in height, and the shape of the coating is a truncated cone;
according to the formula, the filling heights of the three parts are respectively
Section V1: h1=3m/ρ π (r)2+R2+rR)
Section V2: h2= m/ρ π R2
Section V3: h3=3m/ρ π (R)2+r2+Rr)
Can obtain the product
H =3m/ρπ(r2+R2+rR)+m/ρπR2+3m/ρπ(R2+r2+Rr)
Speed is displacement per unit time, and rising speed V of liquid levelHAnd the rising speed V of the filling gunHLWhen Δ t is taken to be 1 second, H and H are obtainedL；
Setting the height difference H to obtain the speed control formula H of the lifting cylinderL=H+h。
Further, in order to better realize the method, the CPU controller sets a parameter filling progress eta = m/W according to a proportional relation between the canned weight m detected by the weighing sensor and the rated filling weight W; 0 & lteta & gt & lt100 & gt is present, and the conversion point eta is set at a position close to eta =1000At motor speed n of eta0And η =100 to a stop.
The invention has the beneficial effects that:
the method of the invention is different from the traditional filling method for detecting the volume of the liquid by the flowmeter, and is suitable for filling the liquid with larger volume and certain liquid viscosity (possibly sticky). The invention can ensure that the filling gun is stably controlled in real time, and the filling precision can be greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of a conventional filling machine;
FIG. 2 is a bar chart showing the height difference h control of the filling gun during filling by the conventional filling machine;
FIG. 3 is a bar graph of the height differential h control of the filling gun of the present invention;
FIG. 4 is a graphical representation of fill flow Q versus fill weight W for the present invention;
FIG. 5 is a schematic view of the internal shape of the can body of the present invention;
fig. 6 is a diagram of the relationship between the motor rotation speed and the working period η according to the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally laid out when products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be noted that the terms "disposed," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. They may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
As shown in fig. 1 and 2, a cylinder body of a lifting cylinder of a conventional filling machine is fixed on a bottom surface, a piston is connected with a guide post, a filling gun, a control valve and a pipeline are controlled to lift by the piston of the lifting cylinder, a motor drives a pump to rotate, and the filling gun starts to fill after the control valve is opened. The traditional filling machine adopts a sectional type control method: the filling gun descends to a first filling point in the barrel and stops, the control valve is opened, the motor and the pump operate at a certain speed to pump materials, and filling is started; after filling for a certain time, the filling gun is lifted to a second filling point, and the multi-section type is analogized in turn. And after the canning weight is reached, stopping the operation of the motor, closing the control valve and finishing the canning. The liquid level is raised in the filling process to be a continuous process, but the lifting of the filling gun in the mode is changed at intervals of a plurality of height positions, and the height difference h between the muzzle end of the filling gun and the liquid level is a changing process, so that the foam control and the weighing stability are not facilitated. The lifting interval of the filling gun is controlled by time, the controllability is poor, and the lifting amount is large when the load is light. After the filling weight is reached, the motor still needs to convey liquid to the tail end in the process from operation to stop, the control valve needs time for closing, the stability control of quantitative filling is not facilitated, and the precision can only reach 0.1 kg. The difference in height in this manner is shown in fig. 2.
The embodiment provides an intelligent control filling method which comprises the following steps: detecting the height of the filling gun (i.e. the height of the piston of the lifting cylinder)Degree) HLDetecting filling weight m by using a weighing sensor, calculating actual height H of the coating in the tank body according to the inner diameter R and R of the tank body and the density rho of the coating, synchronously lifting a canning gun along with the rise of the liquid level in the filling process, and ensuring the height difference H (H = H)L-H) stability. The driving motor is controlled in a variable speed mode, when the filling coating is close to the rated weight W, the rotating speed of the motor is continuously reduced, the filling quantity Q is continuously reduced, the liquid level and the rising speed of the filling gun are reduced, and the filling gun stops until the rated filling weight W is reached.
The height difference of the present embodiment is schematically shown in fig. 3, and the height difference h can be substantially ensured to be constant within the control accuracy range. The filling flow Q is dependent on the motor speed. The fill weight curve is plotted against the fill weight in a work cycle, as shown in FIG. 4, with the fill flow rate being set from the target flow rate Q at approximately the target weight WeThe filling weight is continuously reduced, and the filling efficiency is considered while the filling weight precision control is ensured.
According to the volume formula of the circular truncated cone V = pi (R)2+ r2+ Rr) H/3, cylinder volume formula V = π R2H, and density formula ρ = m/V, can be derived
The height formula of the circular truncated cone H =3 m/rho pi (R)2+r2+Rr)
Cylinder height formula H = m/rho pi R2
In the formula
H is the height of the filled coating
m is the mass of the injected coating
Rho is the density of the coating
Pi is the circumferential ratio
R is the maximum radius of the inner diameter of the tank body
r is the minimum radius of the inner diameter of the can body.
As shown in fig. 5, the outer shape of the can body of the present embodiment is divided into three portions according to the inner shape of the can body:
H1height of V1Partially, the shape of the coating is an inverted frustum shape;
H2height of V2Partially, the coating is cylindrical in shape;
H3height of V3Partially, coating formThe shape is a round table shape;
according to the formula, the filling heights of the three parts are respectively
V1The method comprises the following steps: h1=3m/ρπ(r2+R2+rR)
V2The method comprises the following steps: h2=m/ρπR2
V3The method comprises the following steps: h3=3m/ρπ(R2+r2+Rr)
Can obtain the product
H =3m/ρπ(r2+R2+rR)+m/ρπR2+3m/ρπ(R2+r2+Rr)
Speed is displacement per unit time, and rising speed V of liquid levelHAnd the rising speed V of the filling gunHLWhen Δ t is taken to be 1 second, H and H are obtainedL。
Setting the height difference H to obtain the speed control formula H of the lifting cylinderL=H+h。
According to the proportional relation between the canned weight m detected by the weighing sensor and the rated filling weight W, the parameter filling progress eta = m/W is set, and the eta is more than or equal to 0 and less than or equal to 100. Setting a conversion point η at a position close to η =1000As can be seen from fig. 6, the motor speed n is at η0And eta =100, the filling flow is continuously reduced immediately, and the enclosed area of the motor rotating speed curve and the n axis and the eta axis is the filling weight W.
The method is distinguished from a filling method using a flow meter: the flow meter method is to detect the volume of the liquid, not the weight of the liquid directly filled. The method is more suitable for filling liquid with larger weight and certain liquid viscosity (possibly sticky).
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (4)
1. An intelligent control method for filling of spraying quick-setting rubber asphalt waterproof paint is disclosed, wherein a weighing sensor, a position sensor and a CPU controller are arranged in the filling machine, and the control method is characterized by comprising the following steps:
s1, detecting the height H of the filling gun by a position sensorL；
S2, detecting the weight m of the existing paint in the tank body by a weighing sensor;
s3, calculating the actual height H of the paint in the tank body by the CPU according to the inner diameter R and R of the tank body and the paint density rho;
s4, in the filling process, the CPU controller controls the filling gun to lift synchronously along with the rise of the liquid level, and the height difference H (H = H) is ensuredL-H) stability;
and S5, controlling a motor for driving the pump by adopting frequency conversion or variable speed, when the filling coating is close to the rated weight W, continuously reducing the rotating speed of the motor, continuously reducing the filling quantity Q, and reducing the liquid level and the lifting speed of the filling gun until the filling weight W is reached.
2. The intelligent control method for filling of the sprayed quick-setting rubber asphalt waterproof coating according to claim 1, characterized in that:
the tank body of the filling machine is in a structure that the upper part is in an inverted circular truncated cone shape, the middle part is in a cylindrical shape, and the lower part is in a circular truncated cone shape, and V = pi (R) is obtained according to a circular truncated cone volume formula2+ r2+ Rr) H/3, cylinder volume formula V = π R2H, and density formula ρ = m/V, can be derived
The height formula of the circular truncated cone H =3 m/rho pi (R)2+r2+Rr)
Cylinder height formula H = m/rho pi R2
In the formula
H is the height of the filled coating
m is the mass of the injected coating
Rho is the density of the coating
Pi is the circumferential ratio
R is the maximum radius of the inner diameter of the tank body
r is the minimum radius of the inner diameter of the can body.
3. The intelligent control method for filling of the sprayed quick-setting rubber asphalt waterproof coating according to claim 2, characterized in that:
the can body shape can divide the can body into three parts:
the height of H1 is V1 part, and the shape of the coating is in an inverted truncated cone shape;
h2 is a V2 part in height, and the coating is cylindrical in shape;
h3 is a V3 part in height, and the shape of the coating is a truncated cone;
according to the formula, the filling heights of the three parts are respectively
Section V1: h1=3m/ρ π (r)2+R2+rR)
Section V2: h2= m/ρ π R2
Section V3: h3=3m/ρ π (R)2+r2+Rr)
Can obtain the product
H =3m/ρπ(r2+R2+rR)+m/ρπR2+3m/ρπ(R2+r2+Rr)
Speed is displacement per unit time, and rising speed V of liquid levelHAnd the rising speed V of the filling gunHLTaking delta t as 1 second, namely H and HL;
setting the height difference H to obtain the speed control formula H of the lifting cylinderL=H+h。
4. The intelligent control method for filling of the sprayed quick-setting rubber asphalt waterproof coating according to claim 1, characterized in that:
the CPU controller sets a parameter filling progress eta = m/W according to a proportional relation between the canned weight m detected by the weighing sensor and the rated filling weight W; 0 & lteta & gt & lt100 & gt is present, and the conversion point eta is set at a position close to eta =1000At motor speed n of eta0And η =100 to a stop.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110817868.0A CN113582114B (en) | 2021-07-20 | 2021-07-20 | Intelligent control method for filling sprayed quick-setting rubber asphalt waterproof coating |
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| CN202110817868.0A CN113582114B (en) | 2021-07-20 | 2021-07-20 | Intelligent control method for filling sprayed quick-setting rubber asphalt waterproof coating |
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| CN113582114B CN113582114B (en) | 2023-03-14 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5921293A (en) * | 1994-08-31 | 1999-07-13 | Sig Combibloc Gmbh | Device and process for filling containers with a liquid |
| CN102923628A (en) * | 2012-11-13 | 2013-02-13 | 武汉理工大学 | Liquid filing tester and filling test method |
| CN203667016U (en) * | 2013-12-30 | 2014-06-25 | 北京大通星河自控技术有限公司 | Submerged weighing filling machine |
| CN107914903A (en) * | 2017-11-08 | 2018-04-17 | 天津金泰盛世石化设备有限公司 | A kind of canned system and its control method automatically controlled |
| CN208947656U (en) * | 2018-08-25 | 2019-06-07 | 郑州穿山乙电子科技有限公司 | It is a kind of can automatic frequency-conversion reduction of speed Weighing type automatically quantitative filling machine |
| CN212667737U (en) * | 2020-05-21 | 2021-03-09 | 宁波柯力传感科技股份有限公司 | Automatic quantitative filling system of liquid chemical raw materials |
-
2021
- 2021-07-20 CN CN202110817868.0A patent/CN113582114B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5921293A (en) * | 1994-08-31 | 1999-07-13 | Sig Combibloc Gmbh | Device and process for filling containers with a liquid |
| CN102923628A (en) * | 2012-11-13 | 2013-02-13 | 武汉理工大学 | Liquid filing tester and filling test method |
| CN203667016U (en) * | 2013-12-30 | 2014-06-25 | 北京大通星河自控技术有限公司 | Submerged weighing filling machine |
| CN107914903A (en) * | 2017-11-08 | 2018-04-17 | 天津金泰盛世石化设备有限公司 | A kind of canned system and its control method automatically controlled |
| CN208947656U (en) * | 2018-08-25 | 2019-06-07 | 郑州穿山乙电子科技有限公司 | It is a kind of can automatic frequency-conversion reduction of speed Weighing type automatically quantitative filling machine |
| CN212667737U (en) * | 2020-05-21 | 2021-03-09 | 宁波柯力传感科技股份有限公司 | Automatic quantitative filling system of liquid chemical raw materials |
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Denomination of invention: An Intelligent Control Method for Spraying Quick Setting Rubber Asphalt Waterproof Coating Filling Effective date of registration: 20231101 Granted publication date: 20230314 Pledgee: Agricultural Bank of China Limited Wudi County sub branch Pledgor: Shandong North Chuangxin Waterproof Technology Group Co.,Ltd. Registration number: Y2023980063749 |