CN112985558A - Powder weigher weighing device and control system thereof - Google Patents
Powder weigher weighing device and control system thereof Download PDFInfo
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- CN112985558A CN112985558A CN202110267344.9A CN202110267344A CN112985558A CN 112985558 A CN112985558 A CN 112985558A CN 202110267344 A CN202110267344 A CN 202110267344A CN 112985558 A CN112985558 A CN 112985558A
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- weighing
- hopper
- tower
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
- G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
- G01G17/06—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes having means for controlling the supply or discharge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
Abstract
The invention discloses a powder material metering scale weighing device and a control system thereof, and relates to the technical field of loading material blanking weighing. In the present invention: a shell bracket is fixedly arranged on the periphery of the peripheral installation shell, an upper cover plate is installed on the peripheral installation shell in a matching manner, a feeding hole is formed in the upper side of the upper cover plate, and a metering hopper is arranged in the peripheral installation shell in a matching manner; a material distributing tower is arranged right above the metering hopper; a middle shaft lever is arranged at the central position of the material distributing tower; the upper end of the middle shaft lever is connected with the upper cover plate through a connecting structure; the weighing hopper is connected with a plurality of weighing components. The invention relates to a material distributing tower and a weighing hopper which are matched with each other, wherein a weighing component is arranged on the periphery of the weighing hopper, and a weighing sensor and a controller are utilized to carry out real-time dynamic analysis and calculation on the powder material discharging quality, so that a data base is provided for real-time control of the discharging speed and the loading action.
Description
Technical Field
The invention belongs to the technical field of loading material blanking weighing, and particularly relates to a weighing device of a powder material metering scale and a control system thereof.
Background
In the material transportation industry, material loading is an important basic link of the whole industry. When loading some containerized materials, the loading can be carried out through equipment such as large-scale lifting appliances and mechanical arms. However, when loading some materials, for example, powdery materials such as cement, sand, or other granular materials, the flowing powder needs to be weighed when loading, if the powder is first loaded and then weighed, the phenomenon of insufficient loading amount or excessive loading amount is likely to occur. In addition, in the process of loading the vehicle, the vehicle moves along with the process of blanking, the vehicle is simply weighed after blanking, and the requirement of quantitative and uniform loading of the vehicle compartment body cannot be met.
Disclosure of Invention
The invention aims to provide a powder weigher weighing device and a control system thereof, which realize accurate dynamic blanking weighing and meet the requirement of quantitative dynamic blanking loading operation.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a powder material metering scale weighing device which comprises a peripheral installation shell, wherein a shell bracket is fixedly arranged on the periphery of the peripheral installation shell, an upper cover plate is arranged on the peripheral installation shell in a matched manner, a feeding hole is formed in the upper side of the upper cover plate, and a metering hopper is arranged in the peripheral installation shell in a matched manner; a material distributing tower is arranged right above the metering hopper; a middle shaft lever is arranged at the central position of the material distributing tower; the upper end of the middle shaft lever is connected with the upper cover plate through a connecting structure; the weighing hopper is connected with a plurality of weighing components.
As a preferable technical scheme of the invention, the material separating tower is in a trumpet shape or a cone shape or any inclined multifaceted shape.
As a preferred technical scheme of the invention, the lower sliding surface of the trumpet-shaped material distribution tower is in an arc slope shape; the tangent line of the bottom side edge of the trumpet-shaped material distribution tower is a horizontal direction line.
As a preferable technical scheme of the invention, a horizontal disc body is arranged at the lower part of the trumpet-shaped material separating tower.
As a preferred technical scheme of the invention, the weighing hopper comprises an upper retaining ring structure and a lower inverted cone structure; the inner side of the inverted cone structure of the measuring hopper is a measuring inner slope surface; the bottom of the distributing tower is positioned in the inner surrounding area of the upper retaining ring structure of the weighing hopper.
As a preferred technical scheme of the invention, the weighing component comprises a fixed bracket plate fixedly connected with the weighing hopper; the weighing component comprises a weighing sensor positioned at the lower end of the fixed support plate.
As a preferred technical scheme of the invention, the weighing component comprises a weighing sensor; an upper hanging rod fixedly installed and connected with the upper cover plate is arranged on the upper side of the weighing sensor; the lower side of the weighing sensor is provided with a hook rod connected with a hook of the weighing hopper.
The invention comprises a control system of a powder material metering scale weighing device, which comprises a main processing controller, and the specific contents are as follows:
STP1, transmitting the real-time weight information sensed by the weighing sensor on the weighing component to the main processing controller;
STP2, main processing controller obtaining multi-frequency weight information, and integral operation of total mass;
STP3 and a main processing controller drive and adjust the opening of the flow valve of the feed inlet according to the quality of the flowing powder monitored and analyzed in real time, and control the real-time flow and the total flow.
As a preferred technical scheme of the invention, the main processing controller comprises a PLC (programmable logic controller) controlled RS485 communication metering device; the frequency of the main processing controller for acquiring the weighing information is N times/second, wherein N is more than or equal to 10.
As a preferred technical solution of the present invention, the main processing controller performs an integral operation of the total mass: m ═ k · (M-M ·: (M-M ·1) dm; wherein M is the total accumulated mass, M is the measured value read by the PLC each time, M1 is the self weight of the weighing hopper, and k is the repetition coefficient.
The invention has the following beneficial effects:
1. according to the invention, by designing the direction switching distribution tower during blanking, materials are uniformly dispersed through the distribution tower, the movement track of the materials is changed, the movement direction of the materials is changed from the vertical direction to the horizontal direction, the impact force in the horizontal direction is mutually counteracted when the materials leave the distribution tower and enter the weighing hopper, no impact force exists in the vertical direction, and the weighing error caused by the movement inertia of the materials is avoided; or through adopting the initial heap of dish style, the natural unloading mode, further reduce the horizontal impact force of material, improve the accuracy of weighing hopper.
2. According to the invention, the weighing hopper matched with the material distribution tower is designed, the weighing assembly is configured at the periphery of the weighing hopper, and the weighing sensor and the controller are utilized to carry out real-time dynamic analysis and calculation on the powder material discharging quality, so that a data basis is provided for real-time control of the discharging speed and the loading action.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall installation structure of the device of the present invention;
FIG. 2 is a schematic diagram of the construction of the peripherally mounted housing, the weighing hopper and its associated components of the present invention;
FIG. 3 is a schematic diagram of the structure of a weighing hopper, a distribution tower and related components of the present invention;
FIG. 4 is a schematic structural diagram of a material distributing tower and relevant components thereof in the invention;
FIG. 5 is a bottom side view of the distributor of the present invention;
FIG. 6 is a schematic diagram of a measuring hopper and associated components of the present invention;
FIG. 7 is a schematic view of the structure of another embodiment of the apparatus of the present invention;
FIG. 8 is a schematic view of the upper cover plate and the weighing hopper inside the device of FIG. 7;
FIG. 9 is a schematic structural view of a measuring hopper and a distributing tower inside the device of the embodiment in FIG. 7;
FIG. 10 is a schematic diagram of a distributor tower within the apparatus of the embodiment of FIG. 7;
FIG. 11 is a schematic diagram of a weighing assembly within the apparatus of the embodiment of FIG. 7;
FIG. 12 is a schematic diagram of a material dividing tower (in elevation) within the apparatus of the embodiment of FIG. 7;
in the drawings, the components represented by the respective reference numerals are listed below:
1-a housing support; 2-installing a shell at the periphery; 3-a first mounting support plate; 4-upper cover plate, 401-cover plate mounting hole; 5-a feed inlet; 6-a measuring hopper; 7-a material distribution tower, 701-a disc body; 8-middle shaft lever, 801-shaft lever mounting hole; 9-internal support sheet; 10-installing an inclined plate inside; 11-a bottom support; 12-weighing component, 1201-upper hanging rod, 1202-hook rod; 13-measuring the inner slope.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1 and 4, the upper end of the middle shaft lever (8) is fixedly connected with a plurality of internal supporting sheet plates (9); an inner mounting inclined plate (10) is fixedly arranged at the outer side end of the inner supporting sheet plate (9); the internal installation inclined plate (10) is installed on the inner side surface of the upper cover plate (4) in a reinforcing mode through bolt matching. The outer side surface of the inner installation inclined plate (10) is of a curved surface structure; the outer side curved surface of the inner installation inclined plate (10) is matched with the inner side curved surface of the upper cover plate (4).
As shown in fig. 1, a plurality of first mounting support plates (3) are arranged at the upper side edge of the peripheral mounting shell (2); a plurality of first mounting support plates (3) are fixedly mounted on the shell support (1) through bolts.
As shown in fig. 5, a bottom support frame (11) for reinforcing and supporting the material distribution tower (7) is arranged on the inner side of the bottom of the material distribution tower (7); the central position of the bottom support frame (11) is fixedly connected with the lower side end of the middle shaft lever (8).
Example two
Horn-shaped material separating tower (7) lower part is equipped with horizontally disc body (701), and the material falls into material separating tower 7 back from feed inlet 5, and initial stage piles up on disc body (701), and along with the increase of piling up the material, some material falls down from disc body (701) naturally, falls on weighing hopper 6, avoids the interference of the horizontal force of horizontal projectile formula to weighing.
EXAMPLE III
The powder material metering scale consists of a feeding hole, a material distributing tower, a metering hopper, a weighing sensor and a shell bracket. The flow detection device is used for detecting the flow of solid powdery materials. The metering precision reaches 0.5%.
The material distributing tower of the invention has the following structure:
the material enters into the material distributing tower from the feed inlet of upper cover plate upper end, the material distributing tower adopts 1/4 concave spherical surface toper design, the material is by homodisperse through the material distributing tower, change material movement track simultaneously, follow the ejection of compact of material distributing tower border tangential direction, material direction of motion changes the horizontal direction by the vertical direction, the horizontal direction impact force offsets each other when leaving the material distributing tower and entering into the weighing hopper like this, the vertical direction does not have the impact force, avoided because the weighing error that material motion inertia leads to. The material distributing tower in the invention can be designed into a horn shape or a cone shape or any inclined multifaceted shape or various special-shaped surfaces capable of receiving and discharging materials. ]
The weighing hopper structure of the invention is as follows:
the measuring hopper adopts a 60-degree or other-angle funnel type design, and four high-precision high-frequency weighing sensors are uniformly arranged in four directions. When the material passes through the weighing hopper, the weighing sensor measures the mass of the powder flowing through the weighing hopper in real time (the self weight of the weighing hopper is removed). The weighing hopper adopts the design of inclination angle to be convenient for the weighing measurement simultaneously does not influence the flow of material. In the weighing sensing configuration of the weighing hopper, the mounting mode of the weighing component can be designed according to actual requirements, and the weighing hopper can adopt a simple downward pressing type (as shown in figure 6) or an upward suspension type (as shown in figure 7). ]
Example four
The invention also relates to a weighing analysis control system:
in the invention, a PLC is adopted to control an RS485 communication metering instrument, weighing data is read 20 times per second, and integral operation M ═ k · (M-M ·) is performed in a PLC program1) dm, wherein M is the total accumulated mass, M is the measured value read by the PLC each time, M1 is the self weight of the weighing hopper, and k is the repetition coefficient. The real-time accumulated mass of the powder can be obtained through the internal operation of the PLC system.
The PLC program monitors the quality of flowing powder in real time, and the flow speed and the total flow can be controlled by adjusting the opening of the flow valve of the feeding hole, so that the aim of quantitative loading is fulfilled.
In the description herein, references to the terms "embodiment" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The utility model provides a powder weigher weighing device, includes peripheral installation casing (2), and the peripheral of peripheral installation casing (2) is fixed and is equipped with shell support (1), upper cover plate (4) are installed in the cooperation on peripheral installation casing (2), feed inlet (5), its characterized in that have been seted up to upper cover plate (4) upside:
a measuring hopper (6) is arranged in the peripheral mounting shell (2) in a matching way;
a distributing tower (7) is arranged right above the metering hopper (6);
a middle shaft lever (8) is arranged at the central position of the material distributing tower (7);
the upper end of the middle shaft lever (8) is connected with the upper cover plate (4) through a connecting structure;
the weighing hopper (6) is connected with a plurality of weighing components (12).
2. The powder weigher weighing device of claim 1, wherein:
the material separating tower (7) is in a trumpet shape or a cone shape or any inclined multifaceted shape.
3. The powder weigher weighing device of claim 2, wherein:
the lower sliding surface of the trumpet-shaped material distribution tower (7) is in an arc slope shape;
the tangent line of the bottom side edge of the trumpet-shaped material distributing tower (7) is a horizontal line.
4. The powder weigher weighing device of claim 2, wherein:
the lower part of the trumpet-shaped material distributing tower (7) is provided with a horizontal disc body (701).
5. The powder weigher weighing device of claim 4, wherein:
the measuring hopper (6) comprises an upper ring retaining ring structure and a lower inverted cone structure;
the inner side of the inverted cone structure of the weighing hopper (6) is a weighing inner slope surface;
the bottom of the distributing tower (7) is positioned in the inner surrounding area of the upper ring retaining ring structure of the metering hopper (6).
6. The powder weigher weighing device of claim 1, wherein:
the weighing component (12) comprises a fixed support plate fixedly connected with the weighing hopper (6);
the weighing component (12) comprises a weighing sensor positioned at the lower end of the fixed support plate.
7. The powder weigher weighing device of claim 1, wherein:
the weighing assembly (12) comprises a load cell;
an upper hanging rod (1201) fixedly installed and connected with the upper cover plate (4) is arranged on the upper side of the weighing sensor;
and a hook rod (1202) connected with a hook of the weighing hopper (6) is arranged on the lower side of the weighing sensor.
8. The utility model provides a control system of powder weigher weighing device, includes the main processing controller, its characterized in that:
STP1, transmitting the real-time weight information sensed by the weighing sensor on the weighing component to the main processing controller;
STP2, main processing controller obtaining multi-frequency weight information, and integral operation of total mass;
STP3 and a main processing controller drive and adjust the opening of the flow valve of the feed inlet according to the quality of the flowing powder monitored and analyzed in real time, and control the real-time flow and the total flow.
9. The control system of the powder weigher weighing device of claim 8, wherein:
the main processing controller comprises a PLC (programmable logic controller) controlled RS485 communication metering instrument;
the frequency of the main processing controller for acquiring the weighing information is N times/second, wherein N is more than or equal to 10.
10. The control system of the powder weigher weighing device of claim 8, wherein:
and (3) performing integral operation of the total mass in the main processing controller: m ═ k · (M-M ·: (M-M ·1)dm；
Wherein M is the total accumulated mass, M is the measured value read by the PLC each time, M1 is the self weight of the weighing hopper, and k is the repetition coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110267344.9A CN112985558A (en) | 2021-03-11 | 2021-03-11 | Powder weigher weighing device and control system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110267344.9A CN112985558A (en) | 2021-03-11 | 2021-03-11 | Powder weigher weighing device and control system thereof |
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| CN112985558A true CN112985558A (en) | 2021-06-18 |
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| CN202110267344.9A Pending CN112985558A (en) | 2021-03-11 | 2021-03-11 | Powder weigher weighing device and control system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776631A (en) * | 2021-08-27 | 2021-12-10 | 安徽黑磁智能科技有限公司 | Linear prediction type powder material metering scale weighing device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB841584A (en) * | 1957-04-17 | 1960-07-20 | James Fairhurst | An improved method and apparatus for continuously monitoring a flowing material in respect of variable properties thereof |
| CN205222146U (en) * | 2015-12-28 | 2016-05-11 | 四川安宁铁钛股份有限公司 | Constant feeder |
| CN111604007A (en) * | 2020-04-28 | 2020-09-01 | 安徽农业大学 | Biomass material self-weight slipping distributed efficient granulator and assembly method |
| CN211425615U (en) * | 2020-03-16 | 2020-09-04 | 方圆集团海阳环保科技有限公司 | Powder weighing and metering device |
-
2021
- 2021-03-11 CN CN202110267344.9A patent/CN112985558A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB841584A (en) * | 1957-04-17 | 1960-07-20 | James Fairhurst | An improved method and apparatus for continuously monitoring a flowing material in respect of variable properties thereof |
| CN205222146U (en) * | 2015-12-28 | 2016-05-11 | 四川安宁铁钛股份有限公司 | Constant feeder |
| CN211425615U (en) * | 2020-03-16 | 2020-09-04 | 方圆集团海阳环保科技有限公司 | Powder weighing and metering device |
| CN111604007A (en) * | 2020-04-28 | 2020-09-01 | 安徽农业大学 | Biomass material self-weight slipping distributed efficient granulator and assembly method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776631A (en) * | 2021-08-27 | 2021-12-10 | 安徽黑磁智能科技有限公司 | Linear prediction type powder material metering scale weighing device and method |
| CN113776631B (en) * | 2021-08-27 | 2023-12-01 | 安徽黑磁智能科技有限公司 | Weighing device and method of linear prediction type powder metering scale |
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Application publication date: 20210618 |