High-precision automatic powder feeding machine

Abstract

The utility model provides a high-precision automatic powder feeding machine which comprises a material storage cavity, a cavity cover plate is arranged above the material storage cavity, a stirring device is arranged in the material storage cavity, a thrust device is arranged below the material storage cavity, a blanking connecting pipe is connected below the thrust device, and the blanking connecting pipe is connected with a feeding pipe. A weighing container is arranged below the blanking connecting pipe, the weighing container is connected with a pressure sensing device through a fixing seat, and the pressure sensing device is installed below the fixing seat. According to the scheme, various kinds of powder can be automatically added, automatic conveying and high-precision feedback of the powder are achieved, the blank of powder conveying at present is filled, manpower is greatly saved, and human errors are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of feeders, in particular to a high-precision automatic feeder for powders. Background Art

[0002] Due to the poor fluffiness and fluidity of powder materials, their transportation and metering are much more difficult than liquid materials. Therefore, when powder addition is involved in chemical experiments, it is usually necessary to weigh the required mass of powder in advance and then gradually add it to the experimental device manually or by machine. Although this traditional method can meet the experimental needs to a certain extent, the process is complicated and there are many problems. The manual weighing process is cumbersome and the operation is less stable, which is prone to errors and contamination risks. In addition, data recording relies on manual completion and lacks automation and standardization. Therefore, experiments that require the addition of powder are often time-consuming and labor-intensive, and the recorded data is not intuitive enough, which increases the possibility of human error.

[0003] Currently, most powder conveying equipment on the market uses screw conveying, gear conveying, or automatic dropping. However, these traditional conveying methods have many practical limitations. Screw and gear conveying often lead to unstable feeding due to uneven powder particle size or material adhesion, which is prone to material jamming, thus affecting the continuity and accuracy of feeding. In addition, these conveying devices are relatively complex in structure, and the disassembly and cleaning process is relatively cumbersome. Especially when frequent powder changes or cleaning are required, it is difficult to quickly and thoroughly remove residues, which poses the risk of cross-contamination.

[0004] Traditional powder weighing and conveying methods have many shortcomings in terms of accuracy, stability and ease of operation. There is an urgent need for an efficient, accurate and easy-to-clean automatic powder feeding and weighing solution to meet the high requirements of modern chemical experiments for powder processing. Utility Model Content

[0005] The purpose of the utility model is to provide a high-precision automatic powder feeder to fill the gap in the need to add powder automation in experiments, make up for human mistakes and human errors that lead to experimental failures, and greatly reduce the cost of manual operation.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A high-precision automatic feeder for powder, characterized in that it includes a storage cavity, a cavity cover is provided above the storage cavity, a stirring device is provided inside the storage cavity, a thrust device is provided below the storage cavity, a blanking connecting pipe is connected below the thrust device, a weighing container is provided below the blanking connecting pipe, the weighing container is connected to a pressure sensing device through a fixed seat, and the pressure sensing device is installed below the fixed seat.

[0008] The high-precision powder feeder provided by this utility model combines a weighing container with a pressure sensor to achieve real-time material monitoring and precise control of the feed quantity, avoiding the errors associated with traditional feeding methods and improving feeding accuracy. The stirring device within the storage chamber effectively prevents powder agglomeration and sedimentation, ensuring uniformity during the feeding process and improving product quality. The thrust device is designed to stably discharge powder and ensure the continuity of material flow, making it particularly suitable for working conditions with high fluidity requirements.

[0009] Furthermore, the cavity cover is connected to the storage cavity via a bracket, which is secured by a clamp. This connection between the cavity cover and the storage cavity via the bracket ensures a secure and reliable connection, preventing loosening and displacement caused by vibration or pressure during operation, thereby ensuring the structural stability of the device. Furthermore, the clamp securement enhances the seal between the cover and the cavity, effectively preventing contaminants from entering and powder from escaping, ensuring a clean and safe feeding process.

[0010] Furthermore, the cavity cover is provided with a trachea quick-connect connector, which is used to store powder to be transported in a sealed cavity and can realize the functions of vacuuming, injecting inert gas and maintaining a constant pressure in the cavity.

[0011] Furthermore, the stirring device includes a stirring rotary motor and a stirring blade connected to the stirring rotary motor.

[0012] Furthermore, the thrust device includes a sealed container connected to the first cylinder via a cylinder connecting block, and a push rod is provided in the sealed container. This design enables precise thrust control and ensures uniform powder delivery.

[0013] Furthermore, a first sealing ring is provided between the storage cavity and the sealed container. The first sealing ring is provided between the storage cavity and the sealed container to help improve the sealing performance, prevent powder or gas leakage, and ensure constant pressure and purity inside the system.

[0014] Furthermore, a second sealing ring is fitted on the outer surface of the pusher rod, and a baffle is positioned on the side of the second sealing ring near the cylinder connection block. This second sealing ring prevents foreign matter from entering the cavity, ensuring material purity. The baffle, positioned near the cylinder connection block, effectively reduces wear on the sealing ring and extends its service life. Furthermore, the combination of the second sealing ring and baffle ensures smoother operation of the pusher rod and precise feeding.

[0015] Furthermore, the pressure sensor device is connected to the slider connection block via a pressure sensor mounting block, which is connected to a linear slider mounted on a rail mounting base. The slider drives the upper weighing container up and down, thereby achieving precise control of the butt-jointed material quality.

[0016] Furthermore, the slide rail mounting base is fixed on the main frame.

[0017] Furthermore, the slider connecting block is connected to the cylinder mounting frame via a linear slider, and the cylinder mounting frame is used to support the second cylinder. The automatic drive of the cylinder reduces the need for manual operation and improves the efficiency and stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model high-precision automatic powder feeder;

[0019] Figure 2 This is a schematic structural diagram of the powder conveying mechanism of the utility model;

[0020] Figure 3 This is a cross-sectional view of the powder conveying mechanism of the utility model;

[0021] Figure 4 This is a schematic structural diagram of the thrust device in the powder conveying mechanism of the utility model;

[0022] Figure 5 This is a cross-sectional view of the thrust device in the powder conveying mechanism of the utility model;

[0023] Figure 6 It is a structural diagram of the automatic quality feedback mechanism of the utility model.

[0024] In the figure: 1. Slide rail mounting base; 2. Weighing container; 3. Fixed seat; 4. Pressure sensing device; 5. Pressure sensor mounting block; 6. Slider connecting block; 7. Linear slider; 8. Cylinder mounting frame; 9. Second cylinder; 10. Main frame; 11. Storage cavity; 12. Stirring device; 121. Stirring rotary motor; 122. Stirring blade; 13. Thrust device; 131. Sealed container; 132. Cylinder connecting block; 133. First cylinder; 134. Push rod; 14. Blanking connecting pipe; 15. Cavity cover; 16. Bracket; 17. Clamp; 18. Air pipe quick connector; 19. First sealing ring; 20. Second sealing ring; 21. Baffle. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0026] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0027] Figure 1 It is used to illustrate the structure of the utility model high-precision automatic powder feeder. Figure 1 As shown, the high-precision automatic powder feeder includes a storage chamber 11 for sealed storage of powder. A chamber cover 15 is provided above the storage chamber 11, and a stirring device 12 is provided inside to evenly distribute the powder and prevent agglomeration. The stirring device cooperates with the ultrasonic action of a specific frequency to make the powder fall evenly into the thrust device. The thrust device 13 is connected to the bottom of the storage chamber 11, and the powder is transported to the blanking connecting pipe 14 through the thrust device 13, and then enters the weighing container 2 through the blanking connecting pipe 14. The weighing container 2 is connected to the pressure sensor device 4 through the fixed seat 3, and the pressure sensor device 4 accurately measures the weight of the powder and feeds back the data.

[0028] Figure 2 and Figure 3 To illustrate the structure of the powder conveying mechanism of the present invention. Figure 2 and Figure 3 As shown, the cavity cover 15 is connected to the storage cavity 11 through a bracket 16, and the cavity cover 15 is fixed by a clamp 17. A trachea quick connector 18 is provided on the cavity cover 15. The stirring device 12 includes a stirring rotary motor 121 and a stirring blade 122 connected to the stirring rotary motor 121. When in use, first remove the clamp 17, put the required powder into the storage cavity 11, and then reinstall the clamp 17 and adjust the relevant parameters. After pressing the start switch of the equipment, the equipment will automatically complete the vacuum and introduce inert gas to maintain a constant pressure. With the cooperation of the stirring device 12, the powder falls evenly into the thrust device 13, ready to enter the subsequent feeding link.

[0029] Figure 4 and Figure 5 It is used to illustrate the structure of the thrust device in the powder conveying mechanism of the present utility model. Figure 4 and Figure 5 As shown, the thrust device 13 includes a sealed container 131, which is connected to the first cylinder 133 through a cylinder connecting block 132, and a push rod 134 is provided in the sealed container 131. A first sealing ring 19 is provided between the storage cavity 11 and the sealed container 131. A second sealing ring 20 is sleeved on the outer surface of the push rod 134, and a baffle 21 is provided on the side of the second sealing ring 20 close to the cylinder connecting block 132. After the powder is evenly stirred, it falls into the thrust device 13. Subsequently, the push rod 134 is pushed by controlling the first cylinder 133 to push the powder to the discharge port. At this time, the powder is accurately transported to the weighing container 2 by vibration or blowing, and the mass of the powder pushed each time is set to 0.005g. At the same time, the sealing elements added to the device ensure the stability of the environment and the purity of the material.

[0030] Figure 6It is used to illustrate the structure of the automatic quality feedback mechanism of the utility model. Figure 6 As shown, a weighing container 2 is provided below the blanking connection pipe 14. The weighing container 2 is connected to the pressure sensing device 4 via a fixing seat 3. The pressure sensing device 4 is mounted below the fixing seat 3. The pressure sensing device 4 is connected to the slider connection block 6 via a pressure sensor mounting block 5. The slider connection block 6 is connected to the linear slider 7. The linear slider 7 is mounted on the slide rail mounting base 1. The slide rail mounting base 1 is fixed to the main frame 10. The slider connection block 6 is connected to the cylinder mounting frame 8 via the linear slider 7. The cylinder mounting frame 8 is used to support the second cylinder 9. Before powder conveying, the weighing container 2 is controlled by the second cylinder 9 to be docked to the blanking connection pipe 14 of the powder conveying mechanism, and the pressure sensing device 4 is reset to ensure accurate measurement. When the conveyed powder reaches the required mass, pressure sensing device 4 feeds back the reading to the system, which determines the error between the actual reading and the target mass. If the target mass deviation is small, the system controls the powder conveying mechanism to add an appropriate amount of material. If the target mass is within a reasonable range, the next step is taken. If the target mass is exceeded, the external manipulator collaborates with the powder conveying mechanism to insert a metal rod into the weighing container 2 and use electrostatic adsorption technology to fine-tune the powder amount multiple times to ensure that the target mass is accurately achieved. This process achieves secondary calibration of the target mass, improving the accuracy and stability of powder conveying.

[0031] The technical solutions protected by this utility model are not limited to the above-described embodiments. It should be noted that the combination of the technical solutions of any one embodiment with the technical solutions of one or more other embodiments falls within the scope of protection of this utility model. Although the above description of this utility model has been provided in detail using general instructions and specific embodiments, it is obvious to those skilled in the art that modifications or improvements can be made based on this utility model. Therefore, such modifications or improvements made without departing from the spirit of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A high-precision automatic powder feeder, characterized in that: The invention comprises a material storage cavity (11), a cavity cover (15) is provided above the material storage cavity (11), a stirring device (12) is provided inside the material storage cavity (11), a thrust device (13) is provided below the material storage cavity (11), a blanking connecting pipe (14) is connected below the thrust device (13), a weighing container (2) is provided below the blanking connecting pipe (14), the weighing container (2) is connected to a pressure sensing device (4) through a fixing seat (3), and the pressure sensing device (4) is installed below the fixing seat (3).

2. A high-precision automatic powder feeder according to claim 1, characterized in that: The cavity cover plate (15) is connected to the material storage cavity (11) via a bracket (16), and the cavity cover plate (15) is fixed via a clamp (17).

3. A high-precision automatic powder feeder according to claim 1, characterized in that: A trachea quick-connect connector (18) is provided on the cavity cover plate (15).

4. A high-precision automatic powder feeder according to claim 1, characterized in that: The stirring device (12) comprises a stirring rotary motor (121) and a stirring blade (122) connected to the stirring rotary motor (121).

5. The high-precision automatic powder feeder according to claim 1, characterized in that: The thrust device (13) comprises a sealed container (131), the sealed container (131) is connected to a first cylinder (133) via a cylinder connecting block (132), and a push rod (134) is provided in the sealed container.

6. The high-precision automatic powder feeder according to claim 1, characterized in that: A first sealing ring (19) is provided between the storage cavity (11) and the sealed container (131).

7. The high-precision automatic powder feeder according to claim 5, characterized in that: A second sealing ring (20) is sleeved on the outer surface of the push rod (134), and a blocking piece (21) is provided on the side of the second sealing ring (20) close to the cylinder connecting block (132).

8. The high-precision automatic powder feeder according to claim 1, characterized in that: The pressure sensing device (4) is connected to a slider connecting block (6) via a pressure sensor mounting block (5); the slider connecting block (6) is connected to a linear slider (7); and the linear slider (7) is mounted on a slide rail mounting base plate (1).

9. The high-precision automatic powder feeder according to claim 8, characterized in that: The slide rail mounting base plate (1) is fixed on the main frame (10).

10. The high-precision automatic powder feeder according to claim 8, characterized in that: The slider connecting block (6) is connected to the cylinder mounting frame (8) via a linear slider (7), and the cylinder mounting frame (8) is used to support the second cylinder (9).

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