Automatic powder weighing device

Abstract

The invention discloses an automatic powder weighing device which comprises a machine base, a stock bin assembly, a weighing machine, a material receiving and transferring mechanism and a discharging driving mechanism. The stock bin assembly is provided with a stock bin, a first cavity, a second cavity, a discharging pipeline and a rotary supporting shaft, the first cavity and the second cavity are arranged in the stock bin in a spaced mode and communicate with each other, the discharging pipeline communicates with the second cavity, and the rotary supporting shaft is transversely connected to the bottom of the stock bin and rotationally connected with the machine base. The rotary supporting shaft is located between the extension line of the gravity center line of the stock bin and the extension line of the gravity center line of the second cavity. The weighing machine is arranged below the discharging pipeline; the material receiving and transferring mechanism can transfer the container to the weighing machine; the discharging driving mechanism is provided with a rotation driving mechanism capable of driving the stock bin to rotate and a vibrator arranged on the stock bin and matched with the rotation driving mechanism to adjust the discharging amount of the discharging pipeline. The weighing device is high in automation and integration degree, the machining efficiency, the machining precision and the machining safety are improved, and the labor intensity and the labor cost are reduced.

Description

Technical Field

[0001] This invention relates to the field of weighing device technology, and in particular to an automatic powder weighing device. Background Technology

[0002] In production lines for powdered or granular products, there is usually a product packaging process, which involves dividing the powdered / granular products into smaller portions according to a specified amount to facilitate packaging in subsequent processes.

[0003] Currently, manual weighing is commonly used for packaging powder / granular products. However, this method has several drawbacks: ① Low efficiency, high labor intensity, and high labor costs; ② Difficulty in ensuring high weighing accuracy and uniformity, and the risk of product contamination, resulting in substandard packaging quality; ③ The production environment for powder / granular products is flammable and explosive, and operators are susceptible to occupational diseases such as pneumoconiosis, posing significant health and safety risks.

[0004] In view of this, the present invention is hereby proposed. Summary of the Invention

[0005] To overcome the above-mentioned defects, the present invention provides an automatic powder weighing device with a high degree of automation and integration, which greatly improves processing efficiency and reduces labor intensity and labor costs; it can also achieve high-precision weighing / dispensing of powder with high operational consistency; moreover, it also effectively protects the health and safety of the operator.

[0006] The technical solution adopted by the present invention to solve its technical problem is: an automatic powder weighing device, comprising: a base;

[0007] A hopper assembly includes a hopper, a first chamber and a second chamber spaced laterally within the hopper and connected to each other, a discharge pipe located at the bottom of the hopper and connected to the second chamber, and a rotating support shaft laterally connected to the bottom of the hopper; the first chamber is used to contain powder, and the volume of the first chamber is greater than half of the total volume of the hopper; the rotating support shaft is located between the extension line of the center of gravity of the hopper and the extension line of the center of gravity of the second chamber, and the rotating support shaft is rotatably connected to the base;

[0008] A weighing device is located below the discharge pipe;

[0009] A material transfer mechanism that can transfer containers onto the weighing device;

[0010] The feeding drive mechanism includes a rotation drive mechanism capable of driving the hopper to rotate around the central axis of the rotating support shaft and a vibrator mounted on the hopper; the rotation drive mechanism and the vibrator can cooperate to adjust the discharge rate of the feeding pipe.

[0011] As a further improvement of the present invention, the rotation drive mechanism is provided with an actuator capable of lifting and lowering, and the lifting and lowering movement of the actuator can cause the hopper to rotate accordingly in a clockwise or counterclockwise direction.

[0012] Moreover, when the actuator is at the preset highest position and the vibrator is operating at the maximum vibration parameter, the hopper rotates clockwise to the maximum tilt state, and at the same time the discharge volume of the discharge pipe is at the maximum state.

[0013] When the actuator moves down from the preset highest position to the preset middle position and the vibrator operates with a vibration parameter less than its maximum vibration parameter, the hopper rotates counterclockwise to the first slightly tilted state, and at the same time the discharge volume of the discharge pipe is in an intermediate state between the maximum state and zero.

[0014] When the actuator moves down from the preset middle position to the preset lowest position and the vibrator is not working, the hopper rotates counterclockwise to the second slightly tilted state, and at the same time the discharge volume of the discharge pipe is zero.

[0015] As a further improvement of the present invention, the actuator is a block structure, and a groove block that can abut and cooperate with the actuator is provided on the outer wall of the hopper and near the first chamber.

[0016] As a further improvement of the present invention, the rotation drive mechanism is further provided with a lifting plate fixedly connected to the actuator and a power component capable of driving the lifting plate to perform lifting and lowering movements, and the power component is fixedly mounted on the base.

[0017] As a further improvement of the present invention, the vibrator is a pneumatic vibrator and is configured as one or more; and the vibrator is fixedly installed on the outer wall of the hopper and near the discharge pipe.

[0018] As a further improvement of the present invention, the hopper is a hollow structure with an opening on the upper side, and the vertical cross-section of the upper part of the hopper is rectangular, while the vertical cross-section of the lower part of the hopper is triangular.

[0019] A vertical partition is fixedly installed in the inner cavity of the silo to divide the inner cavity of the silo into a first chamber and a second chamber; a groove is also recessed upward on the bottom side of the vertical partition to connect the first chamber and the second chamber.

[0020] As a further improvement of the present invention, the volume of the first chamber occupies two-thirds of the total volume of the silo;

[0021] The hopper assembly is also provided with a hopper cover, which is detachably fitted onto the upper opening of the hopper.

[0022] As a further improvement of the present invention, a support assembly is also provided, the support assembly having a diagonal brace fixedly disposed on the top of the base and a support block made of antistatic material and fixedly disposed on the top of the diagonal brace, the support block having an arc-shaped groove for supporting the rotating support shaft and simultaneously rotatingly engaging with the rotating support shaft.

[0023] As a further improvement of the present invention, the receiving and transferring mechanism includes a receiving plate with at least two receiving slots, a rotating mechanism capable of driving the receiving plate to rotate, and a lifting mechanism capable of driving the rotating mechanism and the receiving plate to move up and down together. The receiving slots are used for placing containers, and at least two of the receiving slots can fall onto the weighing device one by one under the cooperative action of the lifting mechanism and the rotating mechanism.

[0024] As a further improvement of the present invention, a base is also provided, the lifting mechanism is provided with a lifting cylinder fixedly mounted on the top of the base by a bracket A, the rotating mechanism is provided with a rotating cylinder fixedly connected to the piston rod of the lifting cylinder, and the rotating disk of the rotating cylinder is fixedly connected to the receiving plate.

[0025] The weighing device is an electronic scale and is fixedly mounted on the top of the base via bracket B;

[0026] In addition, sensors for sensing the loading and unloading status of containers are respectively installed on bracket A and bracket B.

[0027] The beneficial effects of this invention are: ① Compared with the prior art, the automatic powder weighing device of this invention integrates multiple functions such as "high-precision automatic feeding," "high-precision automatic weighing," and "automatic powder transfer," achieving a high degree of automation and integration. This significantly improves processing efficiency and reduces labor intensity and labor costs. It also enables high-precision weighing / dispensing of powder with high operational consistency. Furthermore, based on this automatic powder weighing device, operators only need to be responsible for adding material to the first chamber and remote monitoring. While the automatic powder weighing device is working normally, operators do not need to remain on the production site, thus effectively protecting the operator's health and safety. ② The automatic powder weighing device of this invention has a simple and reasonable structure, controllable production cycle, and is easily integrated with other workstations, making it highly applicable and practical. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the automatic powder weighing device of the present invention from a first-view perspective;

[0029] Figure 2 This is a schematic diagram of the automatic powder weighing device of the present invention from a second perspective.

[0030] Figure 3 This is a partial structural schematic diagram of the automatic powder weighing device described in this invention;

[0031] Figure 4 This is a partial structural diagram of the silo assembly described in this invention from a first-view perspective;

[0032] Figure 5 This is a partial structural diagram of the silo assembly described in this invention from a second perspective;

[0033] Figure 6 This is a schematic diagram of the vertical partition of the present invention;

[0034] Figure 7 This is a schematic diagram of the assembly structure of the rotary drive mechanism and the support assembly of the present invention mounted on the base;

[0035] Figure 8 This is a schematic diagram of the assembly structure of the weighing device and the material receiving and transfer mechanism of the present invention mounted on the base.

[0036] Referring to the accompanying drawings, the following explanations are provided:

[0037] 1. Base; 2. Hopper assembly; 20. Hopper; 21. First chamber; 22. Second chamber; 23. Discharge pipe; 24. Rotary support shaft; 25. Groove block; 26. Vertical partition; 260. Groove opening; 27. Hopper cover; 28. Mounting block; 3. Weighing device; 30. Bracket B; 4. Material receiving and transfer mechanism; 40. Receiving groove; 41. Receiving plate; 42. Bracket A; 43. Lifting cylinder; 44. Rotary cylinder; 51. Rotation drive mechanism; 510. Actuator; 511. Lifting plate; 512. Power component; 52. Vibrator; 60. Diagonal support column; 61. Support block; 62. Arc groove; 7. Base; 8. Sensor. Detailed Implementation

[0038] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0039] Example 1:

[0040] Please see the appendix Figure 1 To be continued Figure 8As shown, this embodiment 1 provides an automatic powder weighing device, including a base 1, a hopper assembly 2, a weighing device 3, a receiving and transferring mechanism 4, and a discharging drive mechanism. The hopper assembly 2 includes a hopper 20, a first chamber 21 and a second chamber 22 spaced laterally within and connected to each other in the hopper 20, a discharging pipe 23 located at the bottom of the hopper 20 and communicating with the second chamber 22, and a rotating support shaft 24 laterally connected to the bottom of the hopper 20. The first chamber 21 is used to contain powder, and the first chamber... The volume of chamber 21 is greater than half the total volume of the hopper 20. The second chamber 22 serves as a transition chamber for powder outflow and is connected between the first chamber 21 and the discharge pipe 23. The rotating support shaft 24 is located between the extension line of the center of gravity of the hopper 20 and the extension line of the center of gravity of the second chamber 22, that is, the rotating support shaft 24 is eccentrically / offset relative to the center of gravity of the hopper 20, and the rotating support shaft 24 is rotatably connected to the base 1. It is understood that, based on the first chamber 21... The arrangement of the rotating support shaft 24 and the first chamber 21 allows the hopper 20 to rotate counterclockwise under eccentric load after powder is added. The weighing device 3 is located below the discharge pipe 23 for high-precision weighing of the powder. The receiving and transferring mechanism 4 can transfer an empty container C to the weighing device 3 and remove a container C containing a fixed amount of powder from the weighing device 3. The discharge driving mechanism is equipped with a mechanism that can drive the hopper 20 around the central axis of the rotating support shaft 24. The rotating drive mechanism 51 and the vibrator 52 mounted on the hopper 20 can work together to adjust the discharge rate of the feeding pipe 23. Specifically, by adjusting the tilt state of the hopper 20 through the rotating drive mechanism 51 and by adjusting the vibration parameters (including amplitude and frequency) of the vibrator 52, the discharge rate of the feeding pipe 23 can be adjusted, thereby achieving both high-precision automatic feeding and meeting different feeding requirements.

[0041] As described above, the automatic powder weighing device in this embodiment integrates multiple functions such as "high-precision automatic feeding," "high-precision automatic weighing," and "automatic powder transfer," exhibiting a high degree of automation and integration. This significantly improves processing efficiency and reduces labor intensity and costs. Furthermore, it enables highly accurate weighing / dispensing of powder with high operational consistency. Moreover, based on this automatic powder weighing device, operators only need to add material to the first chamber 21 and perform remote monitoring. While the device is operating normally, operators do not need to remain on-site, thus effectively protecting their health and safety.

[0042] The following is a detailed description of the specific structure and working method of the automatic powder weighing device described in Embodiment 1.

[0043] First, please continue to refer to the appendix. Figure 1 To be continued Figure 3 and appendices Figure 7 As shown, in this embodiment, the preferred implementation structure of the rotation drive mechanism 51 is as follows: it includes an actuator 510, a lifting plate 511 fixedly connected to the actuator 510, and a power component 512 fixedly disposed on the base 1 and capable of driving the lifting plate 511 and the actuator 510 to move up and down together. The lifting movement of the actuator 510 enables the hopper 20 to rotate around the central axis of the rotating support shaft 24. It can be understood that, based on the fact that the rotating support shaft 24 is placed horizontally, the rotation mode of the hopper 20 is such that the hopper 20 can rotate clockwise or counterclockwise under the action of the actuator 510.

[0044] Based on the control of the rotation mode of the hopper 20 by the rotation drive mechanism 51, and in combination with the adjustment of the vibration parameters of the vibrator 52, the method of adjusting the discharge amount of the discharge pipe 23 in this embodiment can be expressed as follows:

[0045] ① When the actuator 510 is in the preset highest position and the vibrator 52 is working with the maximum vibration parameters, the hopper 20 rotates clockwise to the maximum tilt state, and at the same time the discharge volume of the discharge pipe 23 is at its maximum.

[0046] ② When the actuator 510 moves down from the preset highest position to the preset middle position, and the vibrator 52 operates with a vibration parameter less than its maximum vibration parameter, the hopper 20 rotates counterclockwise to the first slightly tilted state, and at the same time the discharge volume of the discharge pipe 23 is in the middle state between the maximum state and zero.

[0047] ③ When the actuator 510 moves down from the preset middle position to the preset lowest position and the vibrator 52 is not working, the hopper 20 rotates counterclockwise to the second slightly tilted state, and at the same time the discharge volume of the discharge pipe 23 is zero.

[0048] Furthermore, the specific structure by which the actuator 510 enables the hopper 20 to rotate is as follows: Please refer to the appendix. Figure 2 and attached Figure 3As shown, the actuator 510 is preferably a block structure. A groove block 25, which can abut and cooperate with the actuator 510, is fixedly provided on the outer wall of the hopper 20 near the first chamber 21. That is, through the connection between the actuator 510 and the groove block 25, when the actuator 510 moves upward, it can push the hopper 20 to rotate clockwise; and when the actuator 510 moves downward, it can unlock the tendency of the hopper 20 to rotate counterclockwise, and at the same time provide support to the hopper 20. As can be seen from the above, based on the arrangement of the first chamber 21 and the rotating support shaft 24, when powder is added to the first chamber 21, the hopper 20 tends to rotate counterclockwise under the action of eccentric load. Therefore, when the actuator 510 moves downward to unlock the restriction on the counterclockwise rotation of the hopper 20, the hopper 20 will rotate counterclockwise under the action of eccentric load.

[0049] Furthermore, in this embodiment, the actuator 510 is a convex-shaped block structure (see attached diagram). Figure 7 As shown in the attached diagram, the slot 25 is a block with slots (see attached diagram). Figure 5 As shown, the actuator 510 can be inserted into and abut against the slot of the slot block 25.

[0050] The power component 512 is preferably an electric cylinder, and the lifting plate 511 is preferably a vertical plate structure, with the actuator 510 fixedly mounted on the top of the lifting plate 511. Furthermore, to achieve precise control of the stroke of the actuator 510, this embodiment also includes a limit switch for monitoring the displacement of the actuator 510.

[0051] Furthermore, in this embodiment, the vibrator 52 is preferably a pneumatic vibrator, and is fixedly installed on the outer wall of the hopper 20, close to the discharge pipe 23. Additionally, in this embodiment, the vibration parameters of the vibrator 52 are adjusted as follows: ① When one vibrator 52 is configured, the amplitude and frequency of the vibrator 52 can be controlled by adjusting the flow rate and pressure of the compressed air input therein, thereby achieving precise control of the speed and direction of material flow. ② When two or more vibrators 52 are configured, the changes in the overall vibration parameters generated by the multiple vibrators 52 can be controlled by adjusting the number of vibrators 52 that are activated. (See attached image.) Figure 2The diagram shows that two vibrators 52 are configured. When a large vibration parameter is required, both vibrators 52 can be controlled to operate simultaneously, while when a smaller vibration parameter is required, only one vibrator 52 can be controlled to operate. Furthermore, when two or more vibrators 52 are configured, to achieve more precise adjustment of the discharge volume of the feed pipe 23, the vibration parameter values ​​of the multiple vibrators 52 can be designed to be different.

[0052] Additionally, please see the appendix. Figure 4 As shown, in this embodiment, an installation block 28 is also provided on the outer wall of the hopper 20 and near the discharge pipe 23, and the vibrator 52 is fixedly installed on the installation block 28.

[0053] Next, please refer to the appendix. Figure 4 To be continued Figure 6 As shown, in this embodiment, the preferred implementation structure of the hopper assembly 2 is as follows: the hopper 20 is a hollow structure with an opening on the upper side, and the vertical cross-section of the upper part of the hopper 20 is rectangular, while the vertical cross-section of the lower part of the hopper 20 is triangular, to facilitate material unloading. A vertical partition 26 is fixedly installed in the inner cavity of the hopper 20, which divides the inner cavity of the hopper 20 into a first chamber 21 and a second chamber 22. Furthermore, to give the hopper 20 an excellent counterclockwise rotation tendency, in this embodiment, the volume of the first chamber 21 is preferably designed to occupy two-thirds of the total volume of the hopper 20. In addition, a groove 260 is recessed upward on the bottom side of the vertical partition 26 to connect the first chamber 21 and the second chamber 22.

[0054] Furthermore, in this embodiment, the hopper assembly 2 is also provided with a hopper cover 27, which is detachably fitted onto the upper opening of the hopper 20.

[0055] Furthermore, in this embodiment, the specific implementation structure for the hopper 20 to be rotatably connected to the base 1 via the rotating support shaft 24 is as follows: Please refer to the appendix. Figure 2 Appendix Figure 4 and attached Figure 7 As shown, a support assembly is also provided. The support assembly has a diagonal brace 60 fixedly installed on the top of the base 1 and a support block 61 made of antistatic material (preferably antistatic plastic steel) fixedly installed on the top of the diagonal brace 60. The support block 61 has an arc-shaped groove 62 for supporting the rotating support shaft 24 and simultaneously rotating with the rotating support shaft 24.

[0056] Next, please refer to the appendix. Figure 1 To be continued Figure 3 and appendices Figure 8 As shown, the preferred implementation structure of the material receiving and transfer mechanism 4 in this embodiment is as follows: it includes a receiving plate 41 with at least two receiving slots 40, a rotating mechanism capable of driving the receiving plate 41 to rotate, and a lifting mechanism capable of driving the rotating mechanism and the receiving plate 41 to move up and down together. The receiving slots 40 are used for placing the container C, and at least two of the receiving slots 40 can fall onto the weighing device 3 one by one under the coordinated action of the lifting mechanism and the rotating mechanism.

[0057] Furthermore, this embodiment also includes a base 7, and the lifting mechanism includes a lifting cylinder 43 fixedly mounted on the top of the base 7 via a bracket A42. The rotating mechanism includes a rotating cylinder 44 fixedly connected to the piston rod of the lifting cylinder 43, and the rotating disk of the rotating cylinder 44 is fixedly connected to the receiving plate 41.

[0058] Please continue to refer to the appendix. Figure 8 As shown, the weighing device 3 in this embodiment is preferably an explosion-proof electronic scale, and is fixedly mounted on the top of the base 7 by a bracket B30.

[0059] In addition, in order to sense the loading and unloading status of container C, this embodiment also provides sensors 8 on the bracket A42 and the bracket B30 respectively. Furthermore, the sensors 8 can preferably be through-beam explosion-proof sensors.

[0060] Based on the above structural description of the automatic powder weighing device, the working method of the automatic powder weighing device in this embodiment is as follows:

[0061] S1: The operator injects the powder into the first chamber 21 and covers it with the cover 27; then leaves the production site to perform remote operation.

[0062] S2: An external robotic arm places an empty container C on the receiving slot 40. Then, the controller controls the rotating mechanism to rotate the receiving plate 41 and the container C on it together, so that one of the empty containers C is directly above the weighing device 3. Subsequently, the controller controls the lifting mechanism to lower the rotating mechanism and the receiving plate 41 together until the empty container C falls onto the weighing device 3.

[0063] S3: The controller controls the power component 512 to operate, driving the actuator 510 to move upward from a preset lowest position to a preset highest position. During the upward movement of the actuator 510, the hopper 20 rotates clockwise until it reaches its maximum tilt. As the hopper 20 rotates and tilts, the powder in the first chamber 21 flows into the second chamber 22 from the slot 260, and the powder flow speed gradually increases (because the tilt angle of the hopper 20 gradually increases). At this time, the controller then controls the vibrator 52 to operate at its maximum vibration parameters, such as controlling the attached... Figure 1 When both vibrators 52 shown are activated, the discharge rate of the feeding pipe 23 can be maximized for rapid material supply.

[0064] The weighing device 3 weighs the powder falling into the container C in real time. When the powder weight reaches a preset value A, the controller controls the vibrator 52 to operate with vibration parameters less than its maximum vibration parameter, such as controlling the attached... Figure 1 One of the two vibrators 52 shown in the diagram stops working while the other continues to work; then, the controller controls the power component 512 to drive the actuator 510 from the preset highest position to the preset middle position, so that the hopper 20 rotates counterclockwise to the first slightly tilted state; at that time, the discharge volume of the discharge pipe 23 is in the middle state between the maximum state and zero, so as to perform fine feeding;

[0065] When the weight of the powder reaches the preset value B, the controller controls all vibrators 52 to stop working, and at the same time controls the power component 512 to drive the actuator 510 to continue to move down from the preset middle position to the preset lowest position, so that the hopper 20 rotates counterclockwise to the second slightly tilted state. At that time, the discharge of the discharge pipe 23 is zero, and the feeding work is completed.

[0066] S4: The controller controls the lifting mechanism to work, so as to drive the rotating mechanism and the receiving plate 41 to move upward together until the container C carrying a certain amount of powder is detached from the weighing device 3; then the controller controls the rotating mechanism to work, so as to drive the receiving plate 41 and the container C on it to rotate together, so that the container C carrying powder is transferred to the unloading position and the other empty container C is moved to be directly above the weighing device 3.

[0067] S5: The external robotic arm removes the container C containing the powder. The controller controls the lifting mechanism to work, so as to drive the rotating mechanism and the receiving plate 41 to move downward together until the empty container C is placed on the receiving groove 40. Repeat the above S3 to S5 until the powder weighing and dispensing work is completed.

[0068] Note: The prefixes "first", "second", etc. (e.g., first chamber, second chamber, etc.) and the suffixes "A", "B", etc. (e.g., bracket A, bracket B, etc.) in the component names in this specification are only for clarity of description and are not intended to limit the scope of implementation of this invention.

[0069] In summary, the automatic powder weighing device of this invention integrates multiple functions such as "high-precision automatic feeding," "high-precision automatic weighing," and "automatic powder transfer," exhibiting a high degree of automation and integration. This significantly improves processing efficiency, reduces labor intensity and labor costs, achieves high-precision powder weighing / dispensing with high operational consistency, and effectively protects the health and safety of operators. Furthermore, the automatic powder weighing device has a simple and reasonable structure, controllable production cycle, and is easily integrated with other workstations, making it highly applicable and practical.

[0070] Many specific details have been set forth in the foregoing description to provide a thorough understanding of the present invention. However, the above description is merely a preferred embodiment of the present invention, and the present invention can be implemented in many other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed above. Furthermore, any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, using the methods and techniques disclosed above, without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, shall still fall within the protection scope of the present invention.

Claims

1. An automatic powder weighing device, characterized in that: include: Base (1); The hopper assembly (2) includes a hopper (20), a first chamber (21) and a second chamber (22) spaced laterally within the hopper (20) and connected to each other, a discharge pipe (23) located at the bottom of the hopper (20) and connected to the second chamber (22), and a rotating support shaft (24) laterally connected to the bottom of the hopper (20); the first chamber (21) is used to contain powder, and the volume of the first chamber (21) is greater than half of the total volume of the hopper (20); the rotating support shaft (24) is located between the extension line of the center line of gravity of the hopper (20) and the extension line of the center line of gravity of the second chamber (22), and the rotating support shaft (24) is rotatably connected to the base (1); Weighing device (3), which is located below the discharge pipe (23); The receiving and transferring mechanism (4) is capable of transferring the container onto the weighing device (3); The feeding drive mechanism is provided with a rotation drive mechanism (51) capable of driving the hopper (20) to rotate around the central axis of the rotating support shaft (24) and a vibrator (52) disposed on the hopper (20); the rotation drive mechanism (51) and the vibrator (52) can cooperate to adjust the discharge amount of the feeding pipe (23).

2. The automatic powder weighing device according to claim 1, characterized in that: The rotation drive mechanism (51) is provided with an actuator (510) capable of lifting and lowering. The lifting and lowering motion of the actuator (510) can cause the hopper (20) to rotate in a clockwise or counterclockwise direction accordingly. Moreover, when the actuator (510) is at the preset highest position and the vibrator (52) is working with the maximum vibration parameters, the hopper (20) rotates clockwise to the maximum tilt state, and at the same time the discharge volume of the discharge pipe (23) is at the maximum state. When the actuator (510) moves down from the preset highest position to the preset middle position and the vibrator (52) operates with a vibration parameter less than its maximum vibration parameter, the hopper (20) rotates counterclockwise to the first slightly tilted state, and at the same time the discharge volume of the discharge pipe (23) is in the middle state between the maximum state and zero. When the actuator (510) moves down from the preset middle position to the preset lowest position and the vibrator (52) is not working, the hopper (20) rotates counterclockwise to the second slightly tilted state, and at the same time the discharge volume of the discharge pipe (23) is zero.

3. The automatic powder weighing device according to claim 2, characterized in that: The actuator (510) is a block structure, and a groove block (25) that can abut and cooperate with the actuator (510) is provided on the outer wall of the hopper (20) near the first chamber (21).

4. The automatic powder weighing device according to claim 2, characterized in that: The rotation drive mechanism (51) is further provided with a lifting plate (511) fixedly connected to the actuator (510) and a power component (512) capable of driving the lifting plate (511) to perform lifting and lowering movements, and the power component (512) is fixedly mounted on the base (1).

5. The automatic powder weighing device according to claim 2, characterized in that: The vibrator (52) is a pneumatic vibrator and is configured as one or more; and the vibrator (52) is fixedly installed on the outer wall of the hopper (20) and close to the discharge pipe (23).

6. The automatic powder weighing device according to claim 1, characterized in that: The hopper (20) is a hollow structure with an opening on the upper side, and the vertical cross-section of the upper part of the hopper (20) is rectangular, while the vertical cross-section of the lower part of the hopper (20) is triangular. A vertical partition (26) is fixedly installed in the inner cavity of the hopper (20) to divide the inner cavity of the hopper (20) into the first chamber (21) and the second chamber (22); a groove (260) is also recessed upward on the bottom side of the vertical partition (26) to connect the first chamber (21) and the second chamber (22).

7. The automatic powder weighing device according to claim 6, characterized in that: The volume of the first chamber (21) occupies two-thirds of the total volume of the hopper (20); The hopper assembly (2) is also provided with a hopper cover (27), which is detachably fitted onto the upper opening of the hopper (20).

8. The automatic powder weighing device according to claim 1, characterized in that: The support assembly is also provided, which includes a diagonal brace (60) fixedly mounted on the top of the base (1) and a support block (61) made of antistatic material and fixedly mounted on the top of the diagonal brace (60). The support block (61) is provided with an arc-shaped groove (62) for supporting the rotating support shaft (24) and simultaneously rotating with the rotating support shaft (24).

9. The automatic powder weighing device according to claim 1, characterized in that: The receiving and transferring mechanism (4) includes a receiving plate (41) with at least two receiving slots (40), a rotating mechanism that can drive the receiving plate (41) to rotate, and a lifting mechanism that can drive the rotating mechanism and the receiving plate (41) to move up and down together. The receiving slots (40) are used for placing containers, and at least two of the receiving slots (40) can fall onto the weighing device (3) one by one under the coordinated action of the lifting mechanism and the rotating mechanism.

10. The automatic powder weighing device according to claim 9, characterized in that: It is also provided with a base (7), the lifting mechanism is provided with a lifting cylinder (43) fixedly installed on the top of the base (7) by a bracket A (42), the rotating mechanism is provided with a rotating cylinder (44) fixedly connected to the piston rod of the lifting cylinder (43), and the rotating disk of the rotating cylinder (44) is fixedly connected to the receiving plate (41). The weighing device (3) is an electronic scale and is fixedly mounted on the top of the base (7) by a bracket B (30); In addition, sensors (8) for sensing the loading and unloading status of containers are respectively provided on the support A (42) and the support B (30).

Images