Powder conveying device with weighing function

Abstract

The utility model relates to a powder conveying device, and provides the powder conveying device with the weighing function, which comprises a tank body, a mounting seat, a feeding pipe, a conveying pipe and the like, the upper part of the tank body is provided with a mounting seat, the whole tank body is in a big-end-up conical shape, the upper part of the tank body is provided with a feeding pipe, and the lower part of the tank body is transversely provided with a conveying pipe. When the device is used for weighing conveyed materials, the materials gently slide to the buffer hopper by virtue of the inclined surface in the material guide hopper in a material conveying stage, so that the powder is prevented from directly impacting a container, the fluctuation amplitude of weighing data is effectively reduced, the weighing precision is further improved, and the accuracy of the powder consumption in a subsequent processing link is guaranteed.

Description

Technical Field

[0001] This utility model relates to a powder conveying device, and more particularly to a powder conveying device with a weighing function. Background Technology

[0002] In the powder processing of chemical, building materials and other fields, the conveying and accurate weighing of powders are key links to ensure production quality. Precise measurement of raw material powders is required to control the reaction process during production. Therefore, efficient and accurate powder conveying and weighing directly affects product qualification rate, production efficiency and production cost control, and is of great significance for large-scale production.

[0003] In existing technologies, the conventional process for powder conveying and weighing is as follows: the powder is directly conveyed to the packaging or storage container through conveying equipment (such as screw conveyors or pipelines), and a weighing component (such as a weighing sensor) is installed below the container. The weight is detected at the same time as the powder enters the container, which can realize the direct connection of the powder from the conveying stage to the storage or packaging stage and complete the weighing operation simultaneously. This avoids the efficiency loss caused by multiple transfers of powder and provides basic weight data support for subsequent processing or packaging processes, ensuring the basic continuity of the production process.

[0004] However, existing technologies have significant structural and process defects in practical applications, which adversely affect production. Because existing technologies involve powder falling directly into the weighing container from the conveying equipment without a structure to guide the powder's smooth descent, the high-speed impact of the powder on the bottom of the container when discharged from the outlet causes instantaneous fluctuations in the force on the weighing components. This results in unstable weighing data, making it difficult to accurately reflect the actual weight of the powder. Ultimately, this leads to deviations in powder usage during subsequent processing stages, affecting product quality consistency. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the technical problem of this utility model is to provide a powder conveying device with weighing function.

[0006] The technical solution is as follows: A powder conveying device with weighing function, comprising a tank, mounting base, feed pipe, transfer pipe, screw conveyor, support frame, electrical cabinet, control panel, weighing module, buffer hopper, discharge plate, drive cylinder one, guide hopper, receiving pipe, drive cylinder two, cover, and connecting block. The tank has a mounting base on its upper part, and the tank is generally conical in shape, wider at the top and narrower at the bottom. A feed pipe is located on the upper part of the tank, and a transfer pipe is horizontally located on the lower part of the tank. The internal space of the transfer pipe is connected to the internal space of the tank. A screw conveyor is mounted on the transfer pipe, and the screw conveyor is installed inside the transfer pipe along its length. A support frame is located in the space below the tank, and an electrical cabinet is located on one side of the support frame. The electrical cabinet has a control panel. Weighing modules are located on both the front and rear sides of the upper part of the support frame. A buffer hopper is located between the weighing modules, and a discharge port is located at the bottom of the buffer hopper. The lower part of the hopper is equipped with a rotating discharge plate, which slides in contact with the discharge port of the buffer hopper. A drive cylinder is hinged to one side of the lower part of the buffer hopper, and the drive rod of the drive cylinder is connected to one side of the discharge plate. A guide hopper is provided on the upper part of the support, and a discharge port is opened at the lower part of the guide hopper. The discharge port of the guide hopper extends into the upper part of the buffer hopper. The lower part of the guide hopper is provided with an inclined surface extending towards the discharge port. A receiving pipe is vertically inserted into the guide hopper, and a discharge port is provided at the lower part of the receiving pipe. The discharge port is symmetrically connected to a cover, and the two covers together close the discharge port. The receiving pipe is located above the inclined surface in the guide hopper. The end of the conveying pipe extends into the upper part of the receiving pipe. A drive cylinder is vertically provided on the right side of the receiving pipe. A connecting block is fixed at the lower end of the drive rod of the drive cylinder. Two inclined grooves are opened on the connecting block, and the hinge points of each cover and the right side of the receiving pipe extend into one of the inclined grooves.

[0007] Further explanation: It also includes a frame and diversion angle strips. The lower part of the guide hopper is connected to the frame, and three diversion angle strips are arranged in a triangular pattern inside the frame. The apex of each diversion angle strip is set upward. One diversion angle strip near the discharge port is located in the middle of the frame and its bottom edge faces the discharge port. It is used to divert the powder falling from the discharge port to the left and right sides inside the frame. The two diversion angle strips located at the bottom are symmetrically arranged on the left and right sides below the diversion angle strip near the discharge port, and the bottom edges of the two diversion angle strips face the middle and the two sides of the inner wall of the buffer hopper, respectively.

[0008] To further explain, it also includes a flexible connection. The upper part of the buffer bucket is equipped with a flexible connection, and the upper end of the flexible connection is connected to the outside of the frame.

[0009] To further explain, it also includes a stirring motor, a stirring shaft, a stirring paddle one, and a stirring paddle two. The stirring shaft is vertically and rotatably installed inside the tank. The stirring paddle one is located at the lower part of the stirring shaft, and the stirring paddle two is located in the middle of the stirring shaft. The blades of the stirring paddle two are in contact with the inner wall of the tank. The stirring motor is installed at the center of the top of the tank, and the output shaft of the stirring motor is connected to the upper end of the stirring shaft.

[0010] To further explain, it also includes a vibration module, which is installed on both the feed hopper and the buffer hopper.

[0011] To further explain, it also includes transparent panels. There are viewing windows at the bottom of the tank, the front of the receiving pipe, and the front of the guide hopper, and each viewing window is equipped with a transparent panel.

[0012] Beneficial effects: 1. When the material is conveyed for weighing, the material slides smoothly into the buffer hopper through the inclined surface in the material conveying stage, which avoids the powder directly impacting the container and effectively reduces the fluctuation of the weighing data, thereby improving the weighing accuracy and ensuring the accuracy of the powder usage in subsequent processing stages.

[0013] This invention achieves uniform distribution of powder in the buffer hopper through the frame and three diversion angle strips set in the frame, avoiding local accumulation of powder in the buffer hopper, ensuring that the weight data detected by the weighing module can accurately reflect the total amount of powder in the buffer hopper, and providing a guarantee for the smooth operation of the subsequent unloading process, reducing unloading blockage caused by powder accumulation.

[0014] 3. This utility model, through its mixing motor, mixing shaft, mixing blade one, and mixing blade two, prevents powder from clumping due to prolonged standing during the feeding stage. Simultaneously, it scrapes off powder adhering to the inner wall of the tank, ensuring the powder inside remains loose. This facilitates smooth transport to the receiving pipe via the spiral conveyor within the transfer pipe, reducing blockages in the conveying pipeline caused by powder clumping. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the tank, material transfer mechanism, and guide hopper of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the stirring mechanism, receiving pipe, and cover of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the material guide hopper, frame, and diversion angle strip of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the buffer hopper, unloading plate, and drive cylinder of this utility model.

[0020] In the attached diagrams: 1-Tank body, 2-Mounting base, 3-Feed pipe, 31-Transfer pipe, 32-Screw conveyor, 4-Bracket, 41-Electrical cabinet, 42-Control panel, 43-Weighing module, 5-Buffer hopper, 51-Unloading plate, 52-Drive cylinder one, 6-Guide hopper, 61-Receiving pipe, 62-Drive cylinder two, 621-Cover body, 622-Connecting block, 63-Frame body, 64-Diverter strip, 7-Flexible connection, 8-Agitator motor, 81-Agitator shaft, 82-Agitator paddle one, 83-Agitator paddle two, 9-Vibration module, 10-Transparent plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] A powder conveying device with weighing function, such as Figure 1-5 As shown, the system includes a tank body 1, a mounting base 2, a feed pipe 3, a transfer pipe 31, a screw conveyor 32, a bracket 4, an electrical cabinet 41, a control panel 42, a weighing module 43, a buffer hopper 5, a discharge plate 51, a drive cylinder 1 52, a guide hopper 6, a receiving pipe 61, a drive cylinder 2 62, a cover 621, and a connecting block 622. The mounting base 2 is fixedly installed on the upper part of the tank body 1, allowing the tank body 1 to be suspended in mid-air. The tank body 1 is generally conical in shape, wider at the top and narrower at the bottom. This conical structure utilizes the weight of the powder itself to assist in feeding, preventing the powder from accumulating on the inner wall of the tank. The feed pipe 3 is connected to the upper part of the tank body 1, used to convey the powder to be processed into the tank body 1. The transfer pipe 31 is horizontally connected to the lower part of the tank body 1, allowing the powder to be processed to pass through the tank. The space is fully connected to the internal space of the tank 1, ensuring that the powder in the tank 1 can smoothly enter the conveying pipe 31. The conveying pipe 31 is equipped with a screw conveyor 32, which is rotated and installed inside the conveying pipe 31 along its length. A power component (such as a motor) connected to the screw conveyor 32 is fixedly mounted on one side of the conveying pipe 31. The power component is electrically connected to the control unit in the electrical cabinet 41. The control panel 42 is electrically connected to the control unit. The operator can send commands to the control unit through the control panel 42 to control the start, stop and speed of the power component, thereby adjusting the conveying speed of the screw conveyor 32, achieving precise control of the powder conveying amount, and avoiding the accumulation and impact of powder in the subsequent weighing area due to excessive conveying amount.

[0024] A support frame 4 is fixedly installed in the space below the tank body 1. The support frame 4 provides stable support for the weighing and subsequent components of the entire device. An electrical cabinet 41 is fixedly installed on one side of the support frame 4. The control unit is integrated inside the electrical cabinet 41. A control panel 42 is fixedly installed on the outside of the electrical cabinet 41. The control panel 42 is bidirectionally electrically connected to the control unit, allowing it to input operating commands to the control unit and display the operating status of each component in real time (such as weighing data and the extension / retraction status of the drive cylinder). Weighing modules 43 are fixedly installed on both the front and rear sides of the upper part of the support frame 4. The weighing modules 43 are electrically connected to the control unit and can transmit the detected weight signal to the control unit in real time, which is then displayed on the control panel 42. A buffer hopper 5 is supported between the two weighing modules 43. The buffer hopper 5 is only connected to the support frame 4 through the weighing modules 43 and has no other rigid support structure, ensuring that the weighing modules 43 can accurately detect the total weight of the buffer hopper 5 and the powder inside, avoiding... The force generated by the additional support interferes with the weighing data. The lower part of the buffer hopper 5 has a discharge port. The lower part of the buffer hopper 5 is equipped with a discharge plate 51 that rotates by a hinge. The discharge plate 51 is in close sliding contact with the outer side of the discharge port of the buffer hopper 5. This sliding contact can achieve the sealing of the discharge port and prevent the powder from leaking from the gap. A drive cylinder 52 is hinged to one side of the lower part of the buffer hopper 5. The drive cylinder 52 is electrically connected to the control unit. The control unit can control the extension and retraction of the drive cylinder 52 according to the weight data transmitted by the weighing module 43. The end of the drive rod of the drive cylinder 52 is fixedly connected to one side of the discharge plate 51. When the weight of the powder in the buffer hopper 5 reaches the set value, the control unit controls the drive rod of the drive cylinder 52 to extend or retract, driving the discharge plate 51 to rotate around the hinge, thereby opening or closing the discharge port, and thus controlling the timing of the powder discharge, avoiding premature discharge before weighing or delayed discharge after weighing.

[0025] A guide hopper 6 is fixedly mounted on the upper part of the support 4. A discharge port is opened at the lower part of the guide hopper 6, extending downwards into the upper part of the buffer hopper 5. A certain gap is maintained between the discharge port and the inner wall of the buffer hopper 5, ensuring that the powder can fall smoothly into the buffer hopper 5 while avoiding direct contact between the guide hopper 6 and the buffer hopper 5, thus preventing force transmission. The lower part of the guide hopper 6 has an inclined surface sloping towards the discharge port. This inclined surface guides the powder in the guide hopper 6 to slide naturally down the inclined surface to the discharge port, preventing powder accumulation in the guide hopper 6 and slowing down the falling speed of the powder, thus reducing the impact force when the powder falls into the buffer hopper 5. A receiving pipe 61 is vertically installed inside the guide hopper 6, and the receiving pipe 61 is fixedly connected to the guide hopper 6. The lower part of the receiving pipe 61 has a discharge port, and the discharge port is symmetrically connected to a cover 621 via a hinge. When the two covers 621 are closed, they seal the discharge port together to prevent powder leakage when not discharging. The receiving pipe 61 is located above the inclined surface inside the guide hopper 6. The end of the conveying pipe 31 extends horizontally into the upper part of the receiving pipe 61 to ensure that the powder conveyed by the screw conveyor 32 can completely enter the receiving pipe 61, preventing powder spillage during transmission. A vertically fixed device is installed on the right side of the receiving pipe 61. There is a second drive cylinder 62, which is electrically connected to the control unit. The control unit can synchronously control the operation of the second drive cylinder 62 and the screw conveyor 32 according to the weight signal of the weighing module 43. When the weight of the powder in the buffer hopper 5 has not reached the set value, the control unit controls the drive rod of the second drive cylinder 62 to extend or retract, thereby opening the cover 621 and simultaneously controlling the screw conveyor 32 to feed the material. When the weight reaches the set value, the control unit first controls the screw conveyor 32 to stop feeding the material, and then controls the second drive cylinder 62 to close the cover 621, preventing excess powder from falling into the buffer hopper. 5. A connecting block 622 is fixedly provided at the lower end of the drive rod of the second drive cylinder 62. Two inclined grooves are opened on the connecting block 622, and the hinge shaft ends of each cover 621 and the right side of the receiving pipe 61 extend into one of the inclined grooves. When the second drive cylinder 62 drives the connecting block 622 to move up and down, the hinge shaft slides along the inclined groove. The inclined structure of the inclined groove converts the vertical linear motion of the connecting block 622 into the rotational motion of the cover 621 around the hinge shaft, thereby driving the two covers 621 to open or close synchronously, ensuring that the cover 621 moves in a consistent manner, and avoiding powder leakage or uneven falling due to opening on one side.

[0026] like Figure 2 and Figure 4As shown, it also includes a frame 63 and diverting angle bars 64. The frame 63 is fixedly connected to the lower outer side of the guide hopper 6. The frame 63 is coaxially arranged with the discharge port of the guide hopper 6. Three diverting angle bars 64 are fixedly arranged in a triangular pattern inside the frame 63. The apex of each diverting angle bar 64 is set upward. One diverting angle bar 64 near the discharge port is located in the middle of the frame 63, with its top point directly facing the bottom of the discharge port and its bottom edge facing the discharge port. When the powder falls from the discharge port, it first hits the apex of the diverting angle bar 64. The apex disperses the concentrated falling powder to both sides, and the bottom edge further guides the powder to slide smoothly to the left and right sides inside the frame 63, avoiding the powder from directly impacting the bottom of the buffer hopper 5 vertically. The two diverting angle bars 64 located at the bottom are symmetrically fixed. On the left and right sides below the diversion angle strip 64 near the discharge port, the tops of the two diversion angle strips 64 respectively receive the powder guided down by the upper diversion angle strip 64. The bottom edges of the two diversion angle strips 64 face the center and the inner wall of the buffer hopper 5 respectively. The side facing the center can prevent the powder from being excessively dispersed to the sides, resulting in no material in the middle area, and ensure that the powder is evenly distributed in the buffer hopper 5. The side facing the inner wall of the buffer hopper 5 can guide the powder to the vicinity of the inner wall of the buffer hopper 5, avoiding the powder from being concentrated in the central area of ​​the buffer hopper 5 and causing local accumulation and impact, further reducing the impact force of the powder falling, and at the same time making the powder evenly distributed in the buffer hopper 5, ensuring that the weight data detected by the weighing module 43 can accurately reflect the total amount of powder, and reducing the weighing deviation caused by uneven distribution.

[0027] like Figure 1 and Figure 5 As shown, it also includes a flexible connection 7. The upper edge of the buffer hopper 5 is fixedly provided with the flexible connection 7. The flexible connection 7 is made of a flexible material (such as food-grade silicone or canvas). The upper end of the flexible connection 7 is fixedly connected to the outer edge of the frame 63. The flexible connection 7 can completely seal the gap between the frame 63 and the buffer hopper 5, preventing powder from leaking out of the gap and causing dust pollution. At the same time, due to the flexible characteristics of the flexible connection 7, it only plays a sealing role and will not transmit the vibration and force of the frame 63 or the guide hopper 6 to the buffer hopper 5. This ensures that the buffer hopper 5 is always independently supported by the weighing module 43, avoiding external forces from interfering with the detection accuracy of the weighing module 43, and achieving the effect of sealing and weighing without affecting each other.

[0028] Specifically, the powder to be processed is fed into the tank 1 through the feed pipe 3. The conical structure of the tank 1 assists the powder to gather at the bottom of the conveyor pipe 31 by its own gravity. The operator sends a command to the control unit in the electrical cabinet 41 through the control panel 42 to start the power component on one side of the conveyor pipe 31. The power component drives the screw conveyor 32 to rotate in the conveyor pipe 31, conveying the powder in the tank 1 along the length of the conveyor pipe 31. Finally, the powder enters the upper part of the receiving pipe 61 through the end of the conveyor pipe 31. The control unit determines when to feed material based on the weight data of the buffer hopper 5 transmitted in real time by the weighing module 43 (initially the weight of the empty hopper) and synchronously controls the drive cylinder 62 and the screw conveyor 32. The drive rod of the second drive cylinder 62 drives the connecting block 622 to move. Through the cooperation of the inclined groove and the hinge shaft, the two covers 621 open synchronously. The powder in the receiving pipe 61 falls from the discharge port into the guide hopper 6. The inclined surface in the guide hopper 6 guides the powder to slide naturally down the inclined surface to the lower discharge port. During the process, the inclined surface slows down the falling speed of the powder to avoid direct impact. The powder falling from the discharge port of the guide hopper 6 first contacts the diversion angle strip 64 in the middle of the upper side of the frame 63. The diversion angle strip 64 disperses the concentrated powder to the left and right sides. The dispersed powder then falls onto the two symmetrical diversion angle strips 64 below. These two diversion angle strips 64 further disperse the powder to the sides and middle of the inner wall of the buffer hopper 5. The powder is guided to fall evenly into the buffer hopper 5. During this process, the buffer hopper 5 is supported only by the weighing module 43. The weighing module 43 transmits the detected total weight of the buffer hopper 5 and the powder to the control unit in real time. The data is displayed on the control panel 42. The control unit adjusts the rotation speed of the screw conveyor 32 according to the set weight value to control the powder conveying amount. When the weight detected by the weighing module 43 reaches the set value, the control unit first controls the screw conveyor 32 to stop operating, and then controls the second drive cylinder 62 to drive the cover 621 to close to cut off the powder supply. Subsequently, the control unit controls the drive rod of the first drive cylinder 52 to extend and retract, driving the unloading plate 51 to rotate around the hinge and open the discharge port at the bottom of the buffer hopper 5. The weighed powder in the buffer hopper 5 is discharged through the discharge port into the subsequent processing stage. After unloading, the control unit controls the drive cylinder 52 to reset the discharge plate 51, close the discharge port, and the device returns to the initial state to wait for the next round of conveying and weighing process. Throughout the process, the flexible connection 7 seals the gap between the frame 63 and the buffer hopper 5 to prevent dust leakage. At the same time, its flexibility avoids transmitting external forces that interfere with the weighing. The diversion angle strip 64 in the frame 63 cooperates with the inclined surface of the guide hopper 6 to reduce the impact of the powder on the buffer hopper 5 from the aspects of "deceleration and diversion". Combined with the independent support of the weighing module 43, it ensures that the weighing data is stable and accurate, and realizes the coordinated and efficient operation of powder conveying and weighing.

[0029] In summary, the combination of the inclined surface inside the guide hopper 6, the receiving pipe 61, and the cover 621 first slows down the falling speed of the powder, and then the subsequent structure further disperses the impact. The operator, through the control unit, coordinates and controls the feeding speed of the screw conveyor 32 and the opening and closing timing of the cover 621 of the drive cylinder 62 based on the real-time weight data of the weighing module 43, to ensure that the powder enters the guide hopper 6 at a stable flow rate, and then is guided by the inclined surface inside the guide hopper 6 to flow smoothly to the discharge port, avoiding a large amount of powder falling into the buffer hopper 5 in a short period of time, thus reducing the impact from the source; and the buffer hopper 5 is only supported by the weighing module 43 and has no other rigid connection, ensuring that the weighing data is not affected by external structural forces, ultimately reducing the weighing fluctuation.

[0030] Example 2

[0031] Based on Example 1, such as Figure 1-3 As shown, it also includes a stirring motor 8, a stirring shaft 81, a first stirring paddle 82, and a second stirring paddle 83. The stirring motor 8 is fixedly installed at the center of the top of the tank 1. The output shaft of the stirring motor 8 is fixedly connected to the top of the stirring shaft 81 inside the tank 1. The stirring motor 8 is electrically connected to the control unit inside the electrical cabinet 41. The control panel 42 can control the start, stop, and speed of the stirring motor 8 through the control unit. The stirring shaft 81 is vertically and rotatably mounted inside the tank 1. The first stirring paddle 82 is fixedly installed at the lower part of the stirring shaft 81. The blades of the first stirring paddle 82 are horizontally distributed, which can stir the powder in the lower part of the tank 1 to prevent the powder from clumping due to long-term static storage and ensure that the powder can smoothly enter the feed pipe 31. A second stirring paddle 83 is fixedly installed in the middle of 81. The blades of the second stirring paddle 83 are inclined and the edges of the blades are in close contact with the inner wall of the tank 1. When the stirring shaft 81 drives the second stirring paddle 83 to rotate, the blades can scrape off the powder adhering to the inner wall of the tank 1, avoiding powder residue and waste. At the same time, it works with the first stirring paddle 82 to achieve comprehensive stirring of the powder in the tank 1, ensuring the uniformity of the powder and laying the foundation for subsequent stable conveying. The control unit can synchronously adjust the speed of the stirring motor 8 according to the conveying speed of the screw conveyor 32. When the speed of the screw conveyor 32 increases and the conveying volume increases, the control unit controls the speed of the stirring motor 8 to increase, ensuring that the powder in the tank 1 is always in a loose state to meet the conveying requirements.

[0032] like Figure 1As shown, it also includes a vibration module 9. Vibration modules 9 are fixedly installed on the outer walls of both the guide hopper 6 and the buffer hopper 5. The vibration modules 9 are electrically connected to the control unit. The control panel 42 can independently control the start / stop and vibration frequency of each vibration module 9 through the control unit. The vibration module 9 on the guide hopper 6 is used to solve the problem of powder accumulation on the inclined surface of the guide hopper 6. When the control unit detects that the screw conveyor 32 is continuously operating but the weight data of the weighing module 43 does not change significantly, it determines that there may be powder accumulation in the guide hopper 6, and then activates the vibration module 9 on the guide hopper 6. High-frequency micro-vibration causes the powder adhering to the inclined surface to slide down to the discharge port, ensuring smooth powder conveying. The buffer hopper 5... The vibration module 9 is used to solve the problem of residual powder on the inner wall of the buffer hopper 5 during the unloading stage. In order to avoid the vibration affecting the weighing accuracy, its working logic is staggered from the weighing process: the control unit only starts the vibration module 9 on the buffer hopper 5 after the drive cylinder 52 drives the unloading plate 51 to open and the powder in the buffer hopper 5 is discharged. At this time, the weighing module 43 does not need to detect the weight, and the force generated by the vibration will not interfere with the weighing data. At the same time, the vibration can shake off the residual powder on the inner wall and discharge it, so as to avoid the residual powder affecting the accuracy of the data during subsequent weighing. In addition, the vibration frequency of the vibration module 9 is set to a low amplitude high frequency mode, which can ensure the cleaning effect while avoiding the decrease in the overall stability of the device due to violent vibration.

[0033] like Figure 1-3 As shown, it also includes a transparent plate 10. Viewing windows are provided on the lower side wall of the tank 1, the front side wall of the receiving pipe 61, and the front side wall of the guide hopper 6. The transparent plate 10 is fixed to the edge of the viewing window with sealant. The transparent plate 10 is made of a highly transparent and wear-resistant material, which not only does not affect the operator's observation of the internal powder state but also ensures the sealing of each component and prevents powder leakage. The operator can observe the remaining amount of powder in the tank 1 through the transparent plate 10 at the bottom of the tank 1 to determine whether additional feeding is needed; observe the speed at which the powder enters the receiving pipe 61 and whether there is any blockage through the transparent plate 10 at the front of the receiving pipe 61 to promptly detect any conveying abnormalities; and observe the sliding state of the powder in the guide hopper 6 and whether there is any accumulation through the transparent plate 10 at the front of the guide hopper 6. Combined with the status display on the control panel 42, real-time monitoring of the device's operating status is achieved, facilitating timely troubleshooting and ensuring continuous and stable operation of the device.

[0034] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A powder conveying device with weighing function, comprising a tank (1); Its characteristics are, It also includes a mounting base (2), a feed pipe (3), a transfer pipe (31), a screw conveyor (32), a bracket (4), an electrical cabinet (41), a control panel (42), a weighing module (43), a buffer hopper (5), a discharge plate (51), a drive cylinder one (52), a guide hopper (6), a receiving pipe (61), a drive cylinder two (62), a cover (621), and a connecting block (622). The upper part of the tank body (1) is provided with a mounting base (2). The tank body (1) is generally conical in shape, with a larger upper part and a smaller lower part. The upper part of the tank body (1) is provided with a feed pipe (3), and the lower part of the tank body (1) is horizontally provided with a mounting base (2). A material transfer pipe (31) is connected to the internal space of the tank (1). A screw conveyor (32) is provided on the material transfer pipe (31). The screw conveyor (32) is installed inside the material transfer pipe (31) along the length of the material transfer pipe (31). A support (4) is provided in the space below the tank (1). An electrical cabinet (41) is provided on one side of the support (4). A control panel (42) is provided on the electrical cabinet (41). Weighing modules (43) are provided on both the front and rear sides of the upper part of the support (4). A buffer hopper (5) is provided between the weighing modules (43). A drain is provided at the bottom of the buffer hopper (5). The feed inlet and the buffer hopper (5) are equipped with a rotating discharge plate (51) at the bottom. The discharge plate (51) slides in contact with the discharge port of the buffer hopper (5). A drive cylinder (52) is hinged to one side of the bottom of the buffer hopper (5). The drive rod of the drive cylinder (52) is connected to one side of the discharge plate (51). A guide hopper (6) is provided on the upper part of the bracket (4). A discharge port is opened at the bottom of the guide hopper (6). The discharge port of the guide hopper (6) extends into the upper part of the buffer hopper (5). The lower part of the guide hopper (6) is provided with an inclined surface extending towards the discharge port. A receiving pipe (61) is vertically inserted into the guide hopper (6). (61) The lower part is provided with a discharge port, and the discharge port is symmetrically connected to a cover (621) and the two covers (621) together close the discharge port. The receiving pipe (61) is located above the inclined surface inside the guide hopper (6). The end of the conveying pipe (31) extends into the upper part of the receiving pipe (61). The right side of the receiving pipe (61) is vertically provided with a second driving cylinder (62). The lower end of the driving rod of the second driving cylinder (62) is fixedly provided with a connecting block (622). Two inclined grooves are opened on the connecting block (622), and the hinge point of each cover (621) and the right side of the receiving pipe (61) extends into one inclined groove.

2. The powder conveying device with weighing function according to claim 1, characterized in that, It also includes a frame (63) and diversion angle strips (64). The lower part of the guide hopper (6) is connected to the frame (63). Three diversion angle strips (64) are arranged in a triangular pattern inside the frame (63). The apex of each diversion angle strip (64) is set upward. One diversion angle strip (64) near the discharge port is located in the middle of the frame (63) and its bottom edge faces the discharge port. It is used to divert the powder falling from the discharge port to the left and right sides inside the frame (63). The two diversion angle strips (64) located at the bottom are symmetrically arranged on the left and right sides below the diversion angle strip (64) near the discharge port. The bottom edges of the two diversion angle strips (64) face the middle and the inner wall of the buffer hopper (5) respectively.

3. The powder conveying device with weighing function according to claim 2, characterized in that, It also includes a flexible connection (7), and the upper part of the buffer bucket (5) is provided with a flexible connection (7), and the upper end of the flexible connection (7) is connected to the outside of the frame (63).

4. A powder conveying device with weighing function according to claim 3, characterized in that, It also includes a stirring motor (8), a stirring shaft (81), a stirring paddle one (82) and a stirring paddle two (83). The stirring shaft (81) is vertically and rotatably installed inside the tank (1). The stirring paddle one (82) is installed at the lower part of the stirring shaft (81), and the stirring paddle two (83) is installed in the middle of the stirring shaft (81). The blades of the stirring paddle two (83) are in contact with the inner wall of the tank (1). The stirring motor (8) is installed at the center of the top of the tank (1), and the output shaft of the stirring motor (8) is connected to the upper end of the stirring shaft (81).

5. A powder conveying device with weighing function according to claim 4, characterized in that, It also includes a vibration module (9), and the guide hopper (6) and the buffer hopper (5) are both equipped with vibration modules (9).

6. A powder conveying device with weighing function according to claim 5, characterized in that, It also includes a transparent plate (10), and windows are opened at the bottom of the tank (1), the front of the receiving pipe (61) and the front of the guide hopper (6), and transparent plates (10) are provided in the windows.

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