Powder conveying equipment with weighing function

Abstract

The invention provides powder conveying equipment with a material weighing function, and relates to the technical field of powder conveying, the powder conveying equipment comprises a mounting frame, a top plate and a bottom plate are arranged on the mounting frame, a plurality of sealing covers are arranged on the top plate, a cavity is formed in the lower end of each sealing cover, and a material receiving hopper is inserted into each cavity; a weighing sensor is arranged at the lower end of the receiving hopper, a conveying pump is arranged at the discharging end of the receiving hopper, a discharging hopper is arranged at the upper end of the sealing cover, a control valve is arranged at the lower end of the discharging hopper, a lifting mechanism is arranged on one side of the sealing cover, and a scraping mechanism is arranged on the sealing cover. Through cooperation of the weighing sensor, the control valve and the conveying pump, integrated operation of powder discharging, weighing and conveying is achieved, the precision of the powder discharging amount is improved, through arrangement of the scraping mechanism, automatic scraping of a scraping plate is achieved, manual cleaning is not needed, the labor intensity of operators is reduced, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of powder conveying technology, and more specifically, to a powder conveying device with a weighing function. Background Technology

[0002] In the field of powder processing and conveying, powder conveying equipment is one of the core production equipment, widely used in many industries such as construction, chemical, food, and medicine. Its main function is to realize the storage, transfer and quantitative supply of powder, providing stable powder raw material support for subsequent production processes.

[0003] However, the feeding rate adjustment of existing equipment mostly relies on manual control, which has low adjustment accuracy and makes it difficult to achieve precise quantitative supply of powder. It is easy to feed too much or too little powder, which will affect the quality stability of subsequent products. In addition, dust is easily generated during the feeding and conveying of powder. Dust not only causes powder waste, but also pollutes the production environment and even endangers the health of operators. In existing conveying equipment with sealed structures, powder is easily attached to the inner wall of the sealed cover. The attached powder will clump and deteriorate over a long period of time, which will not only cause powder waste, but also affect the normal operation of the equipment and increase the maintenance cost of the equipment. Summary of the Invention

[0004] The main objective of this invention is to provide a powder conveying device with a weighing function, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A powder conveying device with weighing function includes a mounting frame, a top plate and a bottom plate. A plurality of sealing covers are provided on the top plate. A cavity is provided inside the lower end of each sealing cover, and a receiving hopper is inserted into the cavity. A weighing sensor is provided at the lower end of each receiving hopper. A conveying pump is provided at the discharge end of each receiving hopper. A discharge hopper is provided at the upper end of each sealing cover, and a control valve is provided at the lower end of the discharge hopper. A lifting mechanism is provided on one side of each sealing cover, and a scraping mechanism is provided on the sealing cover.

[0006] Preferably, a fixing frame is fixedly installed on one side of the upper surface of the top plate, and the hopper is fixedly installed inside the fixing frame.

[0007] Preferably, the lifting mechanism includes a mounting plate, which is fixedly installed on one side of the sealing cover. Side plates are fixedly connected to both the upper and lower ends of the mounting plate. A sliding groove is provided on the side plate, and a slider is slidably connected in the sliding groove.

[0008] Preferably, an electric push rod is fixedly connected to the middle of one side of the mounting plate, and a rack is fixedly connected to the output end of the electric push rod. The upper and lower ends of the rack are respectively fixedly connected to two sliders.

[0009] Preferably, a synchronous shaft is rotatably mounted on the top plate, and a plurality of first gears are fixedly mounted on the synchronous shaft. The first gears mesh with a rack, and one end of the synchronous shaft is fixedly connected to the output end of a first motor, which is fixedly mounted on the top plate.

[0010] Preferably, the scraping mechanism includes a second motor, which is fixedly mounted on the sealing cover. The output end of the second motor is fixedly connected to a rotating shaft. A sealing sleeve is fixedly mounted inside the sealing cover, and the rotating shaft is rotatably mounted inside the sealing sleeve.

[0011] Preferably, a second gear is fixedly installed at the lower end of the rotating shaft, a gear ring is meshed with one side of the second gear, a rotating ring is fixedly connected to the bottom of the gear ring, and the rotating ring is rotatably installed on the inner wall of the sealing cover.

[0012] Preferably, scrapers are fixedly connected to both the upper surface of the gear ring and the lower surface of the swivel ring, and the scrapers are slidably connected to the inner wall of the sealing cover.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) By combining the weighing sensor with the control valve and the conveying pump, the integrated operation of powder feeding, weighing and conveying is realized. By connecting the sealing cover with the feeding hopper and the receiving hopper, the feeding and receiving process is sealed, preventing the dust of powder from spreading, ensuring the cleanliness of the production environment and improving the accuracy of powder feeding.

[0014] (2) By adopting a combination structure of several electric push rods with rack, first gear and synchronous shaft, by controlling the meshing state of rack and first gear, several sealing covers can be flexibly operated independently or synchronously, adapting to different production scenarios such as single group and multiple group powder operations, thus improving the flexibility and applicability of the equipment.

[0015] (3) The automatic scraping of materials by the scraper is achieved through the cooperation of the second motor, the second gear and the gear ring, eliminating the need for manual cleaning, reducing the labor intensity of operators and improving cleaning efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the first partial three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the second partial three-dimensional structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of the structure at point A in the middle; Figure 5This is a partial cross-sectional three-dimensional structural diagram of the lifting mechanism of the present invention; Figure 6 This is a schematic cross-sectional view of the receiving portion of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at point B in the middle; Figure 8 This is a three-dimensional structural diagram of the scraping mechanism of the present invention.

[0017] In the diagram: 1. Mounting frame; 11. Top plate; 12. Bottom plate; 13. Fixing frame; 2. Lifting mechanism; 21. Mounting plate; 22. Side plate; 23. Electric push rod; 24. Rack; 25. First gear; 26. First motor; 27. Synchronous shaft; 28. Slide groove; 29. ​​Slider; 3. Sealing cover; 31. Cavity; 4. Receiving hopper; 5. Discharge hopper; 6. Scraping mechanism; 61. Second motor; 62. Scraper; 63. Rotating shaft; 64. Second gear; 65. Gear ring; 66. Rotating ring; 67. Sealing sleeve; 7. Conveying pump; 8. Control valve; 9. Weighing sensor. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figure 1 , Figure 2 , Figure 6 As shown in the figure, this embodiment of the invention proposes a powder conveying device with weighing function, including a mounting frame 1, a top plate 11 and a bottom plate 12 on the mounting frame 1, a plurality of sealing covers 3 on the top plate 11, a cavity 31 inside the lower end of the sealing cover 3, a receiving hopper 4 inserted into the cavity 31, a weighing sensor 9 at the lower end of the receiving hopper 4, a conveying pump 7 at the discharge end of the receiving hopper 4, a discharge hopper 5 at the upper end of the sealing cover 3, a control valve 8 at the lower end of the discharge hopper 5, a lifting mechanism 2 on one side of the sealing cover 3, and a scraping mechanism 6 on the sealing cover 3.

[0020] like Figure 1 As shown, a fixing frame 13 is fixedly installed on one side of the upper surface of the top plate 11, and the hopper 5 is fixedly installed inside the fixing frame 13.

[0021] The top plate 11 and bottom plate 12 of the mounting frame 1 enable the stable installation of each functional component, ensuring the overall stability of the equipment operation. The weighing sensor 9, together with the control valve 8 and the conveying pump 7, realizes the integrated operation of powder feeding, weighing and conveying. The lifting mechanism 2 controls the lifting of the sealing cover 3, which facilitates the insertion and cooperation between the sealing cover 3 and the feeding hopper 5, realizing the sealing of the receiving and feeding process and preventing the spread of powder dust. The scraping mechanism 6 solves the problem of powder accumulation on the inner wall of the sealing cover 3.

[0022] like Figure 1 , Figures 3-5 As shown, the lifting mechanism 2 includes a mounting plate 21, which is fixedly mounted on one side of the sealing cover 3. Side plates 22 are fixedly connected to both the upper and lower ends of the mounting plate 21. A sliding groove 28 is provided on the side plate 22, and a slider 29 is slidably connected in the sliding groove 28. An electric push rod 23 is fixedly connected to the middle of one side of the mounting plate 21. A rack 24 is fixedly connected to the output end of the electric push rod 23. The upper and lower ends of the rack 24 are fixedly connected to two sliders 29 respectively. A synchronous shaft 27 is rotatably mounted on the top plate 11. Several first gears 25 are fixedly mounted on the synchronous shaft 27. The first gears 25 mesh with the rack 24. One end of the synchronous shaft 27 is fixedly connected to the output end of the first motor 26. The first motor 26 is fixedly mounted on the top plate 11.

[0023] By setting up several electric push rods 23, the corresponding racks 24 can be driven to move independently. With the controllable meshing design of the racks 24 and the first gear 25, the independent or synchronous operation of several sealing covers 3 can be switched, adapting to the production needs of multiple scenarios. It meets the sealing requirements when multiple groups of powder are conveyed at the same time and when a single group of powder is conveyed, improving the targeting of operations. The cooperation between the slider 29 and the slide 28 plays a limiting and guiding role in the movement of the racks 24, ensuring that the racks 24 move smoothly and avoiding jamming or tilting. The cooperation between the first motor 26, the synchronous shaft 27 and the first gear 25 realizes the automated control of the lifting of the sealing cover 3 without manual operation, thus improving production efficiency.

[0024] like Figure 1 , Figure 2 , Figures 6-8 As shown, the scraping mechanism 6 includes a second motor 61, which is fixedly mounted on the sealing cover 3. The output end of the second motor 61 is fixedly connected to a rotating shaft 63. A sealing sleeve 67 is fixedly mounted inside the sealing cover 3. The rotating shaft 63 is rotatably mounted inside the sealing sleeve 67. A second gear 64 is fixedly mounted at the lower end of the rotating shaft 63. A gear ring 65 is meshed with one side of the second gear 64. A rotating ring 66 is fixedly connected to the bottom of the gear ring 65. The rotating ring 66 is rotatably mounted on the inner wall of the sealing cover 3. Scrapers 62 are fixedly connected to both the upper surface of the gear ring 65 and the lower surface of the rotating ring 66. The scrapers 62 are slidably connected to the inner wall of the sealing cover 3.

[0025] The automatic scraping of material by the scraper 62 is achieved through the cooperation of the second motor 61, the second gear 64, and the gear ring 65, eliminating the need for manual cleaning, reducing the labor intensity of operators, and improving cleaning efficiency. The scraper 62 is respectively set on the upper surface of the gear ring 65 and the lower surface of the rotating ring 66, which can thoroughly remove powder adhering to different positions on the inner wall of the sealing cover 3, ensuring thorough scraping, avoiding powder accumulation and clumping, reducing powder waste, and preventing powder adhesion from affecting the sealing performance of the sealing cover 3. The setting of the sealing sleeve 67 realizes the sealed connection between the rotating shaft 63 and the sealing cover 3, preventing powder from entering the rotating part of the rotating shaft 63, ensuring the flexible rotation of the rotating shaft 63, and extending the service life of the scraping mechanism 6. The setting of the rotating ring 66 ensures the stability of the rotation process of the gear ring 65, avoids shaking when the scraper 62 scrapes material, and ensures the consistency of the scraping effect.

[0026] The working principle of this powder conveying equipment with weighing function: First, the height of the sealing cover 3 is adjusted by the lifting mechanism 2 to meet the needs of subsequent production processes. The specific adjustment process is as follows: The lifting mechanism 2 is equipped with several electric push rods 23, which can independently drive the corresponding racks 24 to move. The meshing state of the target rack 24 and the first gear 25 is controlled according to the operational requirements, achieving independent or synchronous lifting of the sealing cover 3. During synchronous lifting, all racks 24 mesh with the corresponding first gear 25; during independent lifting, only the target rack 24 meshes with the first gear 25. Then, the first motor 26 is started, driving the synchronous shaft 27 to rotate. The synchronous shaft 27 drives several first gears 25 on it to rotate synchronously. The first gears 25 drive the meshing racks 24 to move upward or downward accordingly. The racks 24, through the mounting plate 21, drive the corresponding sealing cover 3 to move synchronously until a suitable height is reached. During conveying, the upper end of the sealing cover 3 is pressed against the discharge port of the hopper 5. Then, the powder to be conveyed is added into the hopper 5. The control valve 8 at the lower end of the feeding hopper 5 is opened, and the powder falls into the receiving hopper 4 inside the sealing cover 3 through the control valve 8. The weighing sensor 9 at the lower end of the receiving hopper 4 detects the weight of the powder in the receiving hopper 4 in real time. When the weight of the powder reaches the preset value, the control valve 8 closes, stopping the feeding and completing the accurate weighing of the powder. After the weighing is completed, the conveying pump 7 at the discharge end of the receiving hopper 4 is started to transport the weighed powder to the subsequent production process. During the operation of the equipment, the second motor 61 of the scraping mechanism 6 is started. The second motor 61 drives the second gear 64 to rotate through the rotating shaft 63. The second gear 64 drives the gear ring 65 and the rotating ring 66 to rotate synchronously. The scraper 62 on the gear ring 65 and the rotating ring 66 slides along the inner wall of the sealing cover 3, scraping the powder attached to the inner wall into the receiving hopper 4, realizing the recycling of powder. Throughout the process, the plug-in cooperation between the sealing cover 3 and the feeding hopper 5 and the receiving hopper 4 achieves the sealing of the feeding and receiving process, preventing the spread of powder dust and ensuring the cleanliness of the production environment.

[0027] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A powder conveying device with weighing function, comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with a top plate (11) and a bottom plate (12). The top plate (11) is provided with a plurality of sealing covers (3). The lower end of the sealing cover (3) is provided with a cavity (31). A receiving hopper (4) is inserted into the cavity (31). A weighing sensor (9) is provided at the lower end of the receiving hopper (4). A conveying pump (7) is provided at the discharge end of the receiving hopper (4). A discharge hopper (5) is provided at the upper end of the sealing cover (3). A control valve (8) is provided at the lower end of the discharge hopper (5). A lifting mechanism (2) is provided on one side of the sealing cover (3). A scraping mechanism (6) is provided on the sealing cover (3).

2. The powder conveying device with weighing function according to claim 1, characterized in that: A fixing frame (13) is fixedly installed on one side of the upper surface of the top plate (11), and the hopper (5) is fixedly installed inside the fixing frame (13).

3. A powder conveying device with weighing function according to claim 1, characterized in that: The lifting mechanism (2) includes a mounting plate (21), which is fixedly installed on one side of the sealing cover (3). The upper and lower ends of the mounting plate (21) are fixedly connected to side plates (22). A sliding groove (28) is provided on the side plate (22), and a slider (29) is slidably connected in the sliding groove (28).

4. A powder conveying device with weighing function according to claim 3, characterized in that: An electric push rod (23) is fixedly connected to the middle of one side of the mounting plate (21). A rack (24) is fixedly connected to the output end of the electric push rod (23). The upper and lower ends of the rack (24) are fixedly connected to two sliders (29) respectively.

5. A powder conveying device with weighing function according to claim 4, characterized in that: A synchronous shaft (27) is rotatably mounted on the top plate (11). Several first gears (25) are fixedly mounted on the synchronous shaft (27). The first gears (25) mesh with the rack (24). One end of the synchronous shaft (27) is fixedly connected to the output end of the first motor (26). The first motor (26) is fixedly mounted on the top plate (11).

6. A powder conveying device with weighing function according to claim 1, characterized in that: The scraping mechanism (6) includes a second motor (61), which is fixedly installed on the sealing cover (3). The output end of the second motor (61) is fixedly connected to a rotating shaft (63). A sealing sleeve (67) is fixedly installed inside the sealing cover (3), and the rotating shaft (63) is rotatably installed inside the sealing sleeve (67).

7. A powder conveying device with weighing function according to claim 6, characterized in that: The lower end of the rotating shaft (63) is fixedly installed with a second gear (64), and a gear ring (65) is meshed with one side of the second gear (64). A rotating ring (66) is fixedly connected to the bottom of the gear ring (65), and the rotating ring (66) is rotatably installed on the inner wall of the sealing cover (3).

8. A powder conveying device with weighing function according to claim 7, characterized in that: Scrapers (62) are fixedly connected to the upper surface of the toothed ring (65) and the lower surface of the rotating ring (66), and the scrapers (62) are slidably connected to the inner wall of the sealing cover (3).

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