Metering device for flaky materials

Abstract

The utility model discloses a metering device for flaky materials, which comprises a rack, a blanking mechanism arranged on the rack, a metering barrel arranged below the blanking mechanism, a weighing mechanism I arranged at the bottom of the metering barrel, a weighing mechanism II and a conveying mechanism, a material supplementing assembly; the control end is in communication connection with the discharging mechanism, the weighing mechanism I, the weighing mechanism II, the conveying mechanism and the material supplementing assembly; wherein the precision of the weighing mechanism II is higher than that of the weighing mechanism I. The material supplementing assembly comprises a material supplementing bin mechanism and a spiral feeding mechanism, the material supplementing bin mechanism communicates with the feeding end of the feeding mechanism through a discharging opening formed in the bottom, and a material supplementing pipe is arranged at the discharging end of the feeding assembly. Through the weighing mechanism II and the material supplementing assembly, the metering accuracy and reliability are improved, and errors are reduced. And meanwhile, a material supplementing bin mechanism, a spiral feeding mechanism and a material supplementing opening of the material supplementing assembly accurately supplement materials into the metering barrel until the preset weight is reached.

Description

Technical Field

[0001] This utility model belongs to the field of metering equipment technology, and more specifically, relates to a metering device. Background Technology

[0002] In many industrial sectors such as plastics processing, chemicals, and building materials, the metering of sheet materials is a crucial step. Traditional sheet material metering methods often suffer from inaccurate measurement, low efficiency, and equipment clogging, seriously affecting the stability of the production process and product quality. Specifically, the characteristics of sheet materials, such as irregular shape, poor flowability, and easy accumulation, make them prone to deviations during the metering process, making it difficult to achieve accurate measurement requirements.

[0003] Furthermore, with the increasing level of industrial automation, the requirements for the accuracy and efficiency of material measurement on production lines are also becoming higher. Traditional measurement methods typically use a single weighing device to weigh the material. However, the characteristics of sheet-like materials mean that a single coarse weighing is insufficient to meet the prescribed measurement standards. For example, a ton-bucket filling weighing device disclosed in patent number CN202322418945.2 only performs a single coarse weighing, which easily leads to a large error compared to the specified standard weight. Over time, this not only fails to meet customer needs but also easily causes material loss. Utility Model Content

[0004] One object of this invention is to solve at least the aforementioned problems and / or defects, and to provide at least the advantages described below.

[0005] To achieve these objectives and other advantages according to this utility model, a metering device for sheet materials is provided, comprising a frame, a feeding mechanism mounted on the frame, a metering hopper disposed below the feeding mechanism, the upper opening of the metering hopper facing the downward-facing discharge pipe of the upper feeding mechanism, and a weighing mechanism I disposed at the bottom of the metering hopper for weighing the material inside the metering hopper, and further comprising a weighing mechanism II for reweighing the material inside the metering hopper.

[0006] The conveying mechanism that transports the measuring barrel from weighing mechanism I to weighing mechanism II;

[0007] A feeding assembly is installed above the weighing mechanism II;

[0008] Control terminals that are respectively connected to the feeding mechanism, weighing mechanism I, weighing mechanism II, conveying mechanism and feeding assembly;

[0009] The accuracy of the weighing mechanism II is higher than that of the weighing mechanism I. The feeding assembly includes: a feeding bin mechanism located above the weighing mechanism II, and a spiral feeding mechanism.

[0010] The feeding bin mechanism is connected to the feeding end of the spiral feeding mechanism through the discharge port at the bottom, and the discharge end of the feeding mechanism is provided with a feeding pipe located directly above the weighing mechanism II.

[0011] Preferably, the conveying mechanism includes: a conveyor roller table I disposed on the weighing mechanism I, a conveyor roller table II disposed on the weighing mechanism II, and a conveyor roller table III for conveying the metering barrel from the conveyor roller table I to the conveyor roller table II;

[0012] The conveyor roller table I and conveyor roller table II each include: a support seat respectively disposed on the surface of the weighing mechanism I and the weighing mechanism II, and multiple conveyor rollers disposed on the upper surface of the corresponding support seat, wherein at least one conveyor roller is an active roller.

[0013] Preferably, the feeding mechanism includes: a feeding pipe disposed on the frame, a temporary storage tank communicating with the feeding pipe, and the feeding pipe being disposed below the temporary storage tank;

[0014] The material discharge pipe is fixedly connected to the frame via a connector, and the material discharge pipe is spatially aligned with the upper opening of the metering barrel.

[0015] Preferably, it also includes: a dustproof mechanism for covering the metering barrel during the feeding process, the dustproof mechanism including: a connecting plate disposed at the material discharge pipe below the temporary storage tank, a drive cylinder symmetrically disposed on the connecting plate, and a dust cover connected to the output shaft of the drive cylinder;

[0016] The driving cylinders are located on the left and right sides of the temporary storage tank, respectively. The dust cover is located above the measuring barrel, and the size of the dust cover is larger than the size of the measuring barrel. The bottom of the dust cover is at a greater distance from the weighing mechanism I than the height of the measuring barrel.

[0017] Preferably, the frame is provided with a slide rail in the vertical direction, and the connecting member is connected to the slide rail via a slider.

[0018] Preferably, a vibration component is provided below the weighing mechanism I.

[0019] This utility model has at least the following beneficial effects: The weighing mechanism II and the feeding assembly improve the accuracy and reliability of measurement and reduce errors. Simultaneously, the feeding assembly's feeding bin mechanism, screw feeding mechanism, and feeding pipe precisely replenish the material into the measuring barrel until the predetermined weight is reached.

[0020] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a side view of the feeding mechanism, weighing mechanism I, and conveyor roller table I;

[0023] Figure 3 This is a schematic diagram showing the connection relationship between the frame and the connectors;

[0024] Figure 4 This is a schematic diagram showing the connection between the dustproof mechanism and the material discharge pipe;

[0025] Figure 5 This is a schematic diagram of the spatial layout of the conveying mechanism and weighing mechanisms I and II.

[0026] The markings in the diagram are: 1. Feed pipe, 2. Temporary storage tank, 3. Drop pipe, 4. Metering barrel, 5. Weighing mechanism I, 6. Weighing mechanism II, 7. Feeding bin mechanism, 71. Feeding port, 8. Feeding mechanism, 9. Feeding pipe, 10. Conveyor roller table I, 11. Conveyor roller table II, 12. Conveyor roller table III, 13. Support base, 14. Conveyor roller, 15. Connecting component, 16. Slider, 17. Slide rail, 18. Connecting plate, 19. Drive cylinder, 20. Dust cover, 21. Vibrating component, 22. Frame. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0028] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0029] It should be noted that in the description of this utility model, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] Furthermore, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] like Figure 1 The present invention discloses a metering device for sheet materials, comprising a frame 22, a feeding mechanism mounted on the frame 22, a metering drum 4 disposed below the feeding mechanism, the upper opening of the metering drum 4 facing the downward-facing discharge pipe 3 of the upper feeding mechanism, a weighing mechanism I5 disposed at the bottom of the metering drum 4 for weighing the material inside the metering drum 4, and a weighing mechanism II6 for reweighing the material inside the metering drum 4.

[0033] The conveying mechanism that transports the measuring barrel 4 from weighing mechanism I5 to weighing mechanism II6;

[0034] A feeding assembly is installed above the weighing mechanism II6;

[0035] Control terminals that are respectively connected to weighing mechanism I5, weighing mechanism II6, conveying mechanism and feeding assembly;

[0036] The accuracy of the weighing mechanism II6 is higher than that of the weighing mechanism I5. The feeding assembly includes: a feeding bin mechanism 7 located above the weighing mechanism II6, and a spiral feeding mechanism 8.

[0037] The feeding bin mechanism 7 is connected to the feeding end of the spiral feeding mechanism 8 through the discharge port 71 at the bottom. The discharge end of the feeding mechanism 8 is provided with a feeding pipe 9 located directly above the weighing mechanism II 6.

[0038] Working principle:

[0039] When work begins, the operator activates the feeding mechanism via the control terminal, and the sheet material is evenly fed into the metering hopper 4. The feeding mechanism is designed to ensure a stable and continuous flow of material into the metering hopper 4, preventing material accumulation or blockage. After entering the metering hopper 4, the material is initially weighed by the weighing mechanism I5. Weighing mechanism I5 is mounted on the workbench and contacts the bottom of the metering hopper 4, accurately measuring the initial weight of the material inside. Weighing mechanism I5 transmits the preliminary weight to the control terminal. When the displayed weight of weighing mechanism I5 reaches the preset preliminary weight range, the control terminal stops the feeding mechanism. Next, after weighing mechanism I5 completes the preliminary weighing (the preliminary weighing only reaches 90%-95% of the actual required weight), the control terminal activates the conveying mechanism, smoothly transporting the metering hopper 4 from the position of weighing mechanism I5 to below weighing mechanism II6. The conveying mechanism is designed to ensure the stability and accuracy of the metering hopper 4 during movement, avoiding errors caused by movement. At weighing mechanism II6, the material is weighed again. Compared to weighing mechanism I5, weighing mechanism II6 has higher precision, and the control unit immediately issues a command to start the feeding assembly for replenishment. The feeding assembly uses the screw feed assembly 8 to precisely replenish the material stored in the feeding bin assembly 7 into the metering bin 4 through the feeding pipe 9 (re-weighing the material to 100% of the required weight) until the preset weight is reached. The control unit then stops the drive motor in the screw feed assembly 8, achieving precise control of the material weight and ensuring the accuracy of the measurement. At this point, the flaky material in the metering bin 4 has completed the precise metering process (wherein, the flaky material is a strongly oxidizing material).

[0040] In the above technical solution, the conveying mechanism includes: a conveyor roller platform I10 disposed on the weighing mechanism I5, a conveyor roller platform II11 disposed on the weighing mechanism II6, and a conveyor roller platform III12 for conveying the metering barrel 4 from the conveyor roller platform I10 to the conveyor roller platform II11; wherein, both the conveyor roller platform I10 and the conveyor roller platform II11 include: a support base 13 respectively disposed on the surface of the weighing mechanism I5 and the weighing mechanism II6, and multiple conveyor rollers 14 disposed on the upper surface of the support base 13, and at least one of the conveyor rollers 14 is a drive roller. With this technical solution, the conveyor roller platforms I10 and II11 are disposed above the weighing mechanism I5 and the weighing mechanism II6, providing a stable platform for the transmission of the metering barrel 4. The support base 13 is firmly placed on the surface of the weighing mechanism I5 and the weighing mechanism II6, ensuring the overall stability of the conveyor roller platforms. Simultaneously, during the weighing process, weighing mechanisms I5 and II6 remove the weight of the support base 13 and the conveyor roller 14 to obtain the weight of the material inside the metering drum 4. The closely arranged conveyor rollers 14 form a smooth transmission surface, allowing the metering drum 4 to move smoothly on it. At least one conveyor roller 14 is designed as an active roller, driven by a motor or other power unit, providing power to the entire conveyor roller table and ensuring that the metering drum 4 moves in a predetermined direction and speed. The conveyor roller table III12 is structurally similar to conveyor roller tables I10 and II11, also including the support base 13 and conveyor rollers, but its length and width can be adjusted according to actual needs to adapt to the transmission path of the metering drum 4. The conveyor roller table III12 ensures the stability and continuity of operation of the metering drum 4 during transmission.

[0041] In the above technical solution, the feeding mechanism includes: a feeding pipe 1 disposed on the frame 22, a temporary storage tank 2 connected to the feeding pipe 1, and the dropping pipe 3 disposed below the temporary storage tank 2;

[0042] The material discharge pipe 3 is fixedly connected to the frame 22 via a connector 15, and the material discharge pipe 3 is spatially aligned with the upper opening of the metering barrel 4. Using this technical solution, sheet-like material falls from the discharge pipe 1 into the temporary storage tank 2. The temporary storage tank 2 acts as a material transfer station, providing a buffer and ensuring a smoother and more uniform material discharge process. This reduces the risk of inaccurate metering or material waste caused by sudden material outflow. When material needs to be discharged, simply open the control device (such as a valve or baffle, a relatively conventional technique, not shown in the figure) of the material discharge pipe 3 below the temporary storage tank 2, and the material will fall from the temporary storage tank 2 into the metering barrel 4.

[0043] The above technical solution also includes: a dustproof mechanism for covering the metering barrel 4 during the feeding process. The dustproof mechanism includes: a connecting plate 18 set at the material discharge port below the temporary storage tank 2, a drive cylinder 19 symmetrically arranged on the connecting plate 18, and a dust cover 20 connected to the output shaft of the drive cylinder 19.

[0044] In this design, the drive cylinders 19 are positioned on the left and right sides of the temporary storage tank 2, respectively. The dust cover 20 is located above the metering barrel 4, and its size is larger than that of the metering barrel 4. The bottom of the dust cover 20 is at a greater height than the weighing mechanism I5. Using this technical solution, through precise control of the drive cylinders 19 (located on the left and right sides of the temporary storage tank 2, this layout not only ensures the stability of the dust cover 20 during lifting and lowering but also makes the entire dust-proof mechanism more compact and rational in structure), the dust cover 20 can quickly descend and cover the metering barrel 4 before material feeding and quickly rise again after feeding, without affecting subsequent operations. This automated control not only improves work efficiency but also reduces the need for manual intervention. The dust cover 20, located above the metering barrel 4 and larger than it, can completely cover the metering barrel 4 during feeding, preventing material splashing or dust diffusion into the surrounding environment. Due to the presence of the dust cover 20, most of the dust and splashes are blocked inside the dust cover 20, reducing the amount of cleaning work required for the production environment.

[0045] In the above technical solution, the frame 22 is provided with a slide rail 17 in the vertical direction, and the connecting member 15 is connected to the slide rail 17 via a slider 16. With this technical solution, since the connecting member 15 is connected to the slide rail 17 via the slider 16, the position of the connecting member 15 in the vertical direction can be easily adjusted, thereby controlling the relative position of the material discharge port and the metering barrel 4. This adjustment flexibility allows the equipment to adapt to metering barrels 4 of different sizes and specifications, improving the equipment's versatility and adaptability.

[0046] In the above technical solution, a vibration component 21 is provided below the weighing mechanism I5. Using this technical solution, the vibration of the vibration component 21 helps to distribute the material evenly within the metering drum 4, reducing weighing errors caused by uneven material accumulation. The vibration component is a vibration motor, which is widely used and has a simple structure; its structure and connection relationship will not be elaborated further in this utility model.

[0047] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A metering device for sheet materials, comprising a frame, a feeding mechanism mounted on the frame, a metering hopper disposed below the feeding mechanism, the upper opening of the metering hopper facing the downward-facing discharge pipe of the upper feeding mechanism, and a weighing mechanism I disposed at the bottom of the metering hopper for weighing the material inside the metering hopper, characterized in that, Also includes: Weighing mechanism II is used for reweighing the materials in the metering container. The conveying mechanism that transports the measuring barrel from weighing mechanism I to weighing mechanism II; A feeding assembly is installed above the weighing mechanism II; Control terminals that are respectively connected to the feeding mechanism, weighing mechanism I, weighing mechanism II, conveying mechanism and feeding assembly; The accuracy of the weighing mechanism II is higher than that of the weighing mechanism I. The feeding assembly includes: a feeding bin mechanism located above the weighing mechanism II, and a spiral feeding mechanism. The feeding bin mechanism is connected to the feeding end of the spiral feeding mechanism through the discharge port at the bottom, and the discharge end of the feeding mechanism is provided with a feeding pipe located directly above the weighing mechanism II.

2. The metering device for sheet materials according to claim 1, characterized in that, The conveying mechanism includes: a conveyor roller table I disposed on the weighing mechanism I, a conveyor roller table II disposed on the weighing mechanism II, and a conveyor roller table III for conveying the metering barrel from the conveyor roller table I to the conveyor roller table II. The conveyor roller table I and conveyor roller table II each include: a support seat respectively disposed on the surface of the weighing mechanism I and the weighing mechanism II, and multiple conveyor rollers disposed on the upper surface of the corresponding support seat, wherein at least one conveyor roller is an active roller.

3. The metering device for sheet materials according to claim 1, characterized in that, The feeding mechanism includes: a feeding pipe mounted on the frame, a temporary storage tank connected to the feeding pipe, and the feeding pipe being positioned below the temporary storage tank; The material discharge pipe is fixedly connected to the frame via a connector, and the material discharge pipe is spatially aligned with the upper opening of the metering barrel.

4. The metering device for sheet materials according to claim 1, characterized in that, Also includes: A dustproof mechanism for covering the metering barrel during the feeding process, the dustproof mechanism includes: a connecting plate set at the material discharge pipe below the temporary storage tank, a drive cylinder symmetrically arranged on the connecting plate, and a dust cover connected to the output shaft of the drive cylinder. The driving cylinders are located on the left and right sides of the temporary storage tank, respectively. The dust cover is located above the measuring barrel, and the size of the dust cover is larger than the size of the measuring barrel. The bottom of the dust cover is at a greater distance from the weighing mechanism I than the height of the measuring barrel.

5. The metering device for sheet materials according to claim 3, characterized in that, The frame is provided with a slide rail in the vertical direction, and the connecting member is connected to the slide rail through a slider.

6. The metering device for sheet materials according to claim 2, characterized in that, A vibration component is installed below the weighing mechanism I.

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