Raw material automatic metering and feeding device
The design of the scraper assembly and anti-clogging frame solves the problem of powdery materials adhering inside the conveying pipe, realizing automated cleaning and mixing, ensuring smooth conveying and accurate metering of powdery materials, and reducing equipment maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG HENGYIXIN NEW MATERIALS CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-12
AI Technical Summary
Existing automatic metering and feeding devices are prone to moisture accumulation when conveying powdery materials, which can cause inaccurate metering, uneven conveying, and blockages, increasing equipment maintenance costs.
An automatic raw material metering and feeding device was designed, including a scraper assembly and an anti-clogging frame. The scraper assembly cleans residual materials on the inner wall of the conveying pipe with a scraper, and the stirring paddle in the anti-clogging frame prevents material accumulation. Combined with motor drive, automatic cleaning and stirring are achieved to ensure smooth material conveying.
It effectively prevents powdery materials from adhering to the inner wall of the conveying pipe, ensuring smooth conveying, improving metering accuracy, reducing blockages, and lowering equipment maintenance costs.
Smart Images
Figure CN224226220U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metering and feeding technology, specifically to an automatic metering and feeding device for raw materials. Background Technology
[0002] In the industrial production field, the metering and feeding of raw materials is a key link in the production process. With the development of automation technology, feeding devices with automatic metering and continuous conveying functions have gradually become the industry mainstream. By integrating weighing systems, power transmission systems and pipeline conveying systems, they realize the full-process automated control of raw materials from storage and metering to feeding.
[0003] In practical applications, existing automatic metering and feeding devices for powdered materials have some problems. Powdered materials have a large surface area and are hygroscopic, making them prone to moisture absorption. Once damp, the powdered materials tend to adhere to the inner wall of the conveying pipe, forming residues. This not only wastes materials but may also affect the normal conveying of subsequent materials, leading to inaccurate metering and even blockage of the conveying pipe, reducing production efficiency and increasing equipment maintenance costs. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides an automatic raw material metering and feeding device, which has the advantages of automatically cleaning residual materials in the conveying pipe and preventing blockages. This solves the problems of inaccurate metering, uneven conveying, and easy blockage caused by moisture adhesion when conveying powdery materials in existing automatic metering and feeding devices.
[0005] To achieve the above objectives, this utility model employs the following technical solution: an automatic raw material metering and feeding device, comprising a storage bin, an anti-clogging frame fixedly installed at the bottom of the storage bin, an mounting plate fixedly installed at the bottom of the anti-clogging frame, a drain hole at the top of the mounting plate, a feeding bin fixedly installed at the bottom of the mounting plate, a first motor fixedly installed on one side of the feeding bin, the output end of the first motor penetrating the feeding bin, a first rectangular hole at the top of the feeding bin communicating with the drain hole, a second rectangular hole at the bottom of the feeding bin, a rectangular conveying pipe fixedly installed at the bottom of the feeding bin, a rectangular sliding hole at one side of the rectangular conveying pipe, and a scraping assembly for cleaning residual material on the inner wall of the rectangular conveying pipe, the rectangular sliding hole cooperating with the scraping assembly.
[0006] As a preferred embodiment of this utility model, the scraping assembly includes a scraper, which is movably installed inside a rectangular conveying pipe. A connecting rod is fixedly installed on the side of the scraper near the rectangular sliding hole. The connecting rod passes through the rectangular sliding hole. A first connecting post is fixedly installed at the other end of the connecting rod, and an anti-detachment plate is fixedly installed at the other end of the first connecting post.
[0007] As a preferred embodiment of the present invention, the scraping assembly further includes a first connecting rod, which is fixedly installed at the output end of the first motor. A second connecting post is fixedly installed on one side of the first connecting rod, and a second connecting rod is rotatably installed on the outer side of the second connecting post. An anti-detachment plate is fixedly installed on the other end of the second connecting post, and the other end of the second connecting rod is rotatably installed on the outer side of the first connecting post.
[0008] As a preferred technical solution of this utility model, the anti-blocking frame has round holes on both sides, a stirring shaft is rotatably installed inside the round holes, a number of stirring paddles are fixedly installed on the outside of the stirring shaft, a second motor is fixedly installed on one side of the anti-blocking frame, and the output end of the second motor is fixedly installed with one end of the stirring shaft.
[0009] As a preferred technical solution of this utility model, a limiting block is fixedly installed on one side of the inside of the rectangular conveying pipe, and a limiting groove is opened on the side of the scraper near the limiting block, and the limiting block is movably sleeved inside the limiting groove.
[0010] As a preferred embodiment of this utility model, the scraper is arranged in a rectangular frame shape, and its outer perimeter dimension is consistent with the inner wall dimension of the rectangular conveying pipe.
[0011] As a preferred embodiment of this utility model, a measuring cylinder is provided on the outer side of the long shaft of the first motor. Two material collection troughs are symmetrically opened on the outer side of the measuring cylinder. A weight measuring device is provided inside the material collection trough. The weight measuring device is electrically connected to a microcontroller control module. The microcontroller control module is located inside the measuring cylinder and is electrically connected to the first motor.
[0012] The beneficial effects of this utility model are as follows:
[0013] This utility model achieves self-cleaning of the conveying pipe by setting up a scraping component. The first motor drives the linkage mechanism to drive the rectangular scraper to reciprocate. Its outline fits against the inner wall of the conveying pipe, which can scrape off residual materials, reduce the adhesion of raw materials, and ensure smooth conveying.
[0014] The stirring paddle inside the anti-clogging frame is driven by a second motor, which disperses the material in real time to prevent accumulation. The limiting structure ensures the running accuracy of the scraper, improves the cleaning effect, and further ensures the stability of the feeding device. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the automatic raw material metering and feeding device of this utility model;
[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the automatic raw material metering and feeding device of this utility model;
[0017] Figure 3 This is an exploded structural diagram of the automatic raw material metering and feeding device of this utility model;
[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the rectangular conveying pipe of this utility model.
[0019] Reference numerals in the attached drawings: 1. Storage bin; 2. Anti-clogging frame; 3. Mounting plate; 4. Feeding bin; 5. First motor; 6. Rectangular conveying pipe; 7. First connecting rod; 8. Second connecting column; 9. Second connecting rod; 10. Rectangular sliding hole; 11. Scraper; 12. Connecting rod; 13. First connecting column; 14. Stirring shaft; 15. Stirring paddle; 16. Second motor; 17. Limiting block; 18. Limiting groove; 19. Measuring cylinder; 20. Weight measuring device. Detailed Implementation
[0020] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.
[0021] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 -Appendix Figure 4 The present invention will be further described below.
[0022] An automatic raw material metering and feeding device includes a storage bin 1, an anti-blocking frame 2 fixedly installed at the bottom of the storage bin 1, an mounting plate 3 fixedly installed at the bottom of the anti-blocking frame 2, a drain hole at the top of the mounting plate 3, a feeding bin 4 fixedly installed at the bottom of the mounting plate 3, a first motor 5 fixedly installed on one side of the feeding bin 4, the output end of the first motor 5 passing through the feeding bin 4, a first rectangular hole at the top of the feeding bin 4 communicating with the drain hole, a second rectangular hole at the bottom of the feeding bin 4, a rectangular conveying pipe 6 fixedly installed at the bottom of the feeding bin 4, a rectangular sliding hole 10 on one side of the rectangular conveying pipe 6, a scraping component for cleaning residual material on the inner wall of the rectangular conveying pipe 6 is provided inside the rectangular conveying pipe 6, and the rectangular sliding hole 10 is used in conjunction with the scraping component.
[0023] In this implementation scheme, a storage bin 1 is set up to store raw materials and provide installation space for the metering and weighing components, ensuring a stable supply of materials. The stirring shaft 14 and stirring paddle 15 inside the anti-blocking frame 2 rotate to break up the materials and prevent clumping, ensuring that the materials fall smoothly into the feeding bin 4. The mounting plate 3 is used to connect the feeding bin 4. The feeding bin 4 evenly conveys the materials into the rectangular conveying pipe 6. The first motor 5 is used to drive the metering cylinder 19 inside the feeding bin 4, and the materials falling from the anti-blocking frame 2 are rotated and conveyed to the rectangular conveying pipe through the output end of the first motor 5. In section 6, the scraping assembly is driven to move, and the rotational motion is converted into the linear reciprocating motion of the scraper 11 through the eccentric linkage mechanism. The rectangular conveying pipe 6 is the final material conveying channel. Together with the scraper 11, it can scrape off the raw materials remaining on the inner wall of the rectangular conveying pipe 6, reduce the adhesion of raw materials, and further improve the accuracy of feeding and metering. The rectangular sliding hole 10 provides a sliding track for the connecting rod 12 to ensure that the movement trajectory of the scraper 11 is parallel to the axis of the conveying pipe. When the scraping assembly reciprocates, it removes the residual material on the inner wall of the rectangular conveying pipe 6.
[0024] Specifically, the scraping assembly includes a scraper 11, which is movably installed inside the rectangular conveying pipe 6. A connecting rod 12 is fixedly installed on the side of the scraper 11 near the rectangular sliding hole 10. The connecting rod 12 passes through the rectangular sliding hole 10. A first connecting post 13 is fixedly installed on the other end of the connecting rod 12. An anti-detachment plate is fixedly installed on the other end of the first connecting post 13.
[0025] In this embodiment, a scraper 11 is provided to adhere to the inner wall of the conveying pipe to remove residual materials and reduce the adhesion of raw materials. The connecting rod 12 transmits power to drive the scraper 11 to reciprocate, which cooperates with the rectangular sliding hole 10 to limit the movement trajectory. The first connecting post 13 is used to connect the connecting rod 12 and the second connecting rod 9 to ensure stable force transmission. The anti-detachment plate can prevent the second connecting rod 9 from falling off the first connecting post 13. The rectangular sliding hole 10 provides a sliding track for the connecting rod 12 and limits the movement range of the connecting rod 12.
[0026] Specifically, the scraping assembly also includes a first connecting rod 7, which is fixedly installed at the output end of the first motor 5. A second connecting post 8 is fixedly installed on one side of the first connecting rod 7. A second connecting rod 9 is rotatably installed on the outside of the second connecting post 8. An anti-detachment plate is fixedly installed on the other end of the second connecting post 8. The other end of the second connecting rod 9 is rotatably installed on the outside of the first connecting post 13.
[0027] In this embodiment, by setting a first connecting rod 7 and fixing it to the output end of the first motor 5, the rotational motion of the motor is converted into eccentric circular motion. The second connecting column 8 serves as the rotation fulcrum of the second connecting rod 9, allowing the second connecting rod 9 to swing around its axis. The anti-detachment plate restricts the axial displacement of the second connecting rod 9 to prevent it from detaching from the connection. One end of the second connecting rod 9 is hinged to the second connecting column 8, and the other end is hinged to the first connecting column 13, converting the circular motion of the first connecting rod 7 into the linear reciprocating motion of the scraper 11. The first connecting column 13 converts the swing of the first connecting rod 7 and the second connecting rod 9 into the linear motion of the scraper 11.
[0028] Specifically, the anti-blocking frame 2 has round holes on both sides, and a stirring shaft 14 is rotatably installed inside the round holes. Several stirring paddles 15 are fixedly installed on the outside of the stirring shaft 14. A second motor 16 is fixedly installed on one side of the anti-blocking frame 2, and the output end of the second motor 16 is fixedly installed with one end of the stirring shaft 14.
[0029] In this embodiment, an anti-clogging frame 2 is set up to connect the storage box 1 and the feeding box 4, providing installation space for the stirring shaft 14 and the stirring paddle 15, forming a material pre-mixing area. The round holes on both sides support the rotation of the stirring shaft 14, and the inner wall structure guides the material to flow towards the leakage hole to prevent accumulation and blockage at the bottom of the storage box 1. The stirring shaft 14 passes through the round holes on both sides of the anti-clogging frame 2, and drives the stirring paddle 15 to move by rotating, applying mechanical force to the material in the anti-clogging frame 2. The stirring paddle 15 is installed on the outside of the stirring shaft 14. When rotating with the shaft, it stirs, disperses and pushes the material. The paddle blades break up material lumps and eliminate bridging, improving the material flowability and making the material fall evenly into the feeding box 4. The output end of the second motor 16 is connected to the stirring shaft 14 to provide rotational power for the stirring shaft 14, driving the stirring shaft 14 to drive the stirring paddle 15 to run continuously. The speed can be adjusted according to the material characteristics to adapt to different anti-clogging requirements.
[0030] Specifically, a limiting block 17 is fixedly installed on one side of the inside of the rectangular conveying pipe 6, and a limiting groove 18 is opened on the side of the scraper 11 near the limiting block 17, with the limiting block 17 movably fitted inside the limiting groove 18.
[0031] In this embodiment, a limiting block 17 is fixedly installed on the inner wall of the rectangular conveying pipe 6 and inserted into the limiting groove 18 of the scraper 11 to restrict the lateral displacement of the scraper 11. This ensures that the scraper 11 makes a linear reciprocating motion along the axis of the rectangular conveying pipe 6, avoiding scraping failure or pipe wall wear due to movement deviation. The limiting groove 18 is opened on the side of the scraper 11 and is movably connected with the limiting block 17 to guide the movement direction of the scraper 11 and reduce shaking during the movement.
[0032] Specifically, the scraper 11 is arranged in a rectangular frame shape, and its outer perimeter dimensions are consistent with the inner wall dimensions of the rectangular feed pipe 6.
[0033] In this implementation scheme, by setting up a scraper 11, the rectangular frame structure covers the entire inner wall cross section of the rectangular conveying pipe 6, realizing synchronous scraping of materials in all directions without cleaning dead corners. The outer perimeter is consistent with the inner wall size of the rectangular conveying pipe 6, ensuring zero-gap fit with the pipe wall, thoroughly removing adhering materials. The hollow frame forms a through channel, allowing materials to pass directly through the internal space of the scraper 11, maintaining the continuous conveying function of the rectangular conveying pipe 6 and avoiding pipe blockage due to the solid structure of the scraper 11. The periphery of the frame fits against the inner wall of the rectangular conveying pipe 6 to scrape off adhering materials, while the hollow area in the middle allows materials to flow normally.
[0034] Specifically, a measuring cylinder 19 is provided on the outer side of the long shaft of the first motor 5. Two material collection troughs are symmetrically opened on the outer side of the measuring cylinder 19. A weight measuring device 20 is provided inside the material collection trough. The weight measuring device 20 is electrically connected to the microcontroller control module. The microcontroller control module is located inside the measuring cylinder 19 and is electrically connected to the first motor 5.
[0035] In this implementation scheme, a metering cylinder 19 with a collection trough on its outer side is used to temporarily collect the material to be metered, providing a stable metering space for the weight meter 20. This ensures that the material remains relatively stationary during the metering process, thereby guaranteeing the accuracy of the metering. The weight meter 20 is electrically connected to a microcontroller control module, enabling it to monitor the weight of the material in the collection trough in real time and transmit the weight data to the microcontroller control module in real time. The microcontroller control module, as the control core of the entire metering and feeding device, receives the weight signal from the weight meter 20 and performs the feeding based on the target weight value preset by the operator. Analysis and processing: When the material weight approaches the target value, the microcontroller control module can promptly issue an instruction to control the first motor 5 to drive the metering cylinder 19 to rotate. This causes the material-filled collection trough to rotate along with the metering cylinder 19 until the collection trough aligns with the rectangular conveying pipe 6 at the bottom, allowing the material to be fed in. Simultaneously with the rotation of the metering cylinder 19, the symmetrically opened empty collection troughs also rotate, perpendicular to the leakage hole, to measure the material again. Since the first motor 5 and the microcontroller control module of the weight meter 20 are existing technologies, they can be directly used in conjunction with this device without disclosing their specific structures, thus achieving the purpose of weighing and discharging.
[0036] In summary: When using this utility model, the automatic raw material metering and feeding device allows manual input of raw materials directly into the storage bin 1. Operators can add a fixed amount of material at a time according to production needs. After manual input, the external power supply is activated, and the second motor 16 on one side of the anti-clogging frame 2 drives the stirring shaft 14 to rotate, causing the outer stirring paddle 15 to agitate the material. The stirring paddle 15 uses mechanical force to break up clumps and bridging formed by the hygroscopic nature of the powdery material, preventing material from accumulating and clogging at the bottom of the storage bin 1. The agitated material passes through the mounting plate 3. Material falls through the top hole into the feeding box 4 below. A metering cylinder 19 is mounted on the outer side of the long shaft of the first motor 5. Two symmetrical collection troughs are opened on the outer side of the cylinder. A weight meter 20 is installed inside each collection trough. The weight meter 20 is electrically connected to the microcontroller control module inside the metering cylinder 19. The microcontroller control module then forms a closed-loop control circuit with the first motor 5. Material enters the feeding box 4 through the hole and the first rectangular hole at the top of the feeding box 4. Some material falls into the collection trough of the metering cylinder 19. The weight meter 20 monitors the weight of the material in the collection trough in real time and sends an electrical signal. The data is transmitted to the microcontroller control module. The operator pre-sets the target weight value in the microcontroller control module. When the value fed back by the weighing device 20 approaches the target value, the microcontroller control module instructs the first motor 5 to drive the weighing cylinder 19 to rotate, aligning the collection trough with the bottom rectangular conveying pipe 6 for unloading. Simultaneously, another empty collection trough rotates to below the drain hole, repeating the weighing process to achieve continuous weighing. While the first motor 5 rotates, it drives the first connecting rod 7 to rotate, causing the second connecting rod 9 to swing via the second connecting column 8, and then... 13. The connecting rod 12 drives the scraper 11 to perform linear reciprocating motion inside the rectangular conveying pipe 6. The rectangular frame structure of the scraper 11 is consistent with the inner wall size of the rectangular conveying pipe 6, and it scrapes off residual materials in the entire circumference. Its hollow design does not hinder the flow of materials. The rectangular sliding hole 10 provides a sliding track for the connecting rod 12. The limiting block 17 and the limiting groove 18 cooperate to limit the movement trajectory of the scraper 11, ensuring that it moves accurately along the axial direction, thereby scraping off the raw materials remaining on the inner wall of the rectangular conveying pipe 6, reducing the adhesion of raw materials, and further improving the accuracy of the feeding and metering.
[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.
Claims
1. An automatic raw material metering and feeding device, characterized in that, The device includes a storage bin (1), a bottom anti-blocking frame (2) fixedly installed on the bottom of the storage bin (1), a mounting plate (3) fixedly installed on the bottom of the anti-blocking frame (2), a drain hole on the top of the mounting plate (3), a feeding bin (4) fixedly installed on the bottom of the mounting plate (3), a first motor (5) fixedly installed on one side of the feeding bin (4), the output end of the first motor (5) passing through the feeding bin (4), a first rectangular hole on the top of the feeding bin (4), the first rectangular hole communicating with the drain hole, a second rectangular hole on the bottom of the feeding bin (4), a rectangular conveying pipe (6) fixedly installed on the bottom of the feeding bin (4), a rectangular sliding hole (10) on one side of the rectangular conveying pipe (6), a scraping component for cleaning residual material on the inner wall of the rectangular conveying pipe (6) is provided inside the rectangular conveying pipe (6), and the rectangular sliding hole (10) is used in conjunction with the scraping component.
2. The automatic raw material metering and feeding device according to claim 1, characterized in that, The scraping assembly includes a scraper (11), which is movably installed inside the rectangular conveying pipe (6). A connecting rod (12) is fixedly installed on the side of the scraper (11) near the rectangular sliding hole (10). The connecting rod (12) passes through the rectangular sliding hole (10). A first connecting post (13) is fixedly installed at the other end of the connecting rod (12). An anti-detachment plate is fixedly installed at the other end of the first connecting post (13).
3. The automatic raw material metering and feeding device according to claim 2, characterized in that, The scraping assembly also includes a first connecting rod (7), which is fixedly installed at the output end of the first motor (5). A second connecting post (8) is fixedly installed on one side of the first connecting rod (7). A second connecting rod (9) is rotatably installed on the outside of the second connecting post (8). An anti-detachment plate is fixedly installed on the other end of the second connecting post (8). The other end of the second connecting rod (9) is rotatably installed on the outside of the first connecting post (13).
4. The automatic raw material metering and feeding device according to claim 1, characterized in that, Both sides of the anti-blocking frame (2) are provided with round holes. A stirring shaft (14) is rotatably installed inside the round holes. Several stirring paddles (15) are fixedly installed on the outside of the stirring shaft (14). A second motor (16) is fixedly installed on one side of the anti-blocking frame (2). The output end of the second motor (16) is fixedly installed with one end of the stirring shaft (14).
5. The automatic raw material metering and feeding device according to claim 2, characterized in that, A limiting block (17) is fixedly installed on one side of the inside of the rectangular conveying pipe (6). A limiting groove (18) is opened on the side of the scraper (11) near the limiting block (17). The limiting block (17) is movably sleeved inside the limiting groove (18).
6. The automatic raw material metering and feeding device according to claim 5, characterized in that, The scraper (11) is arranged in a rectangular frame shape, and its outer perimeter dimensions are consistent with the inner wall dimensions of the rectangular conveying pipe (6).
7. The automatic raw material metering and feeding device according to claim 1, characterized in that, A metering cylinder (19) is provided on the outer side of the long shaft of the first motor (5). Two material collection troughs are symmetrically opened on the outer side of the metering cylinder (19). A weight measuring device (20) is provided inside the material collection trough. The weight measuring device (20) is electrically connected to the microcontroller control module. The microcontroller control module is located inside the metering cylinder (19) and is electrically connected to the first motor (5).