Automatic feeding device
By designing an automated feeding device, a negative pressure fan and a dust collection system are used to collect dust in the hopper. Combined with electric heating and a transmission device, the problem of dust flying during powder pouring is solved, enabling smooth powder feeding and automatic weighing, thus protecting worker health and the environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU KUNTENGWEI NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-15
AI Technical Summary
During the preparation of paste-like brazing filler metal, the dust generated when the powder is poured into the hopper can affect the health of workers and the working environment.
An automated feeding device was designed, which uses a negative pressure fan and a dust collection system to collect the dust in the hopper into a dust collection bag, and uses electric heating to prevent the powder from clumping. Combined with a transmission device, it ensures smooth powder flow and automatic weighing function.
It effectively reduces dust spillage, protects worker health and working environment, and prevents powder from clumping, enabling smooth powder feeding and automatic weighing.
Smart Images
Figure CN224242008U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of feeding devices, specifically relating to an automated feeding device. Background Technology
[0002] Solder paste is a paste made from soft solder powder, flux, and binder, used for connecting microelectronic devices. Its core function is to melt and fill gaps at the joint upon heating, forming a reliable connection. Through optimized composition and processes, efficient and precise brazing connections are achieved, making it widely used in precision manufacturing and high-temperature engineering. Its properties simplify the welding of complex structures while ensuring high joint reliability.
[0003] In the preparation of paste-like solder, soft solder powder, flux, binder, etc. need to be mixed in proportion. When using a feeding device to feed the powder, it is generally necessary to first pour the powder from the bag into the hopper of the feeding device, and then use the valve and other output control components at the bottom of the hopper to control the powder in the hopper to be fed into the mixing equipment in multiple times according to the usage requirements. However, in the process of pouring the powder from the bag into the hopper, a lot of flying dust will be generated due to the collision between the powder and the inner wall of the hopper, and the collision between the powder particles. This will have an adverse effect on the health of workers and the air environment of the workplace. Utility Model Content
[0004] To address the above problems, the purpose of this utility model is to provide an automated feeding device that can largely confine the dust generated when workers feed powder into the hopper to the inside of the hopper, thereby significantly reducing spillage and minimizing its adverse effects on workers' health and the air quality of the workplace.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automated feeding device, comprising a hopper, a fixed cover plate fixedly provided on the top of the hopper, a hinged flip cover plate connected to one end of the fixed cover plate, a dust-suction arc-shaped pipe provided on the inner side of the top of the hopper below the flip cover plate, a uniformly distributed dust-suction port provided on the inner side of the arc of the dust-suction arc-shaped pipe, a dust-suction hood installed through the top of the fixed cover plate, a three-way pipe connected to the top of the dust-suction hood, a ventilation hose connected between one end of the three-way pipe and the dust-suction arc-shaped pipe, a negative pressure fan connected to the top of the three-way pipe, a first threaded connector connected to one end of the first threaded connector threadedly connected to a second threaded connector, a dust collection bag connected to one end of the second threaded connector, a steering transmission device installed through and fixedly provided between the outer and inner sides of the hopper, a rotary paddle connected to the top of the steering transmission device, an electric butterfly valve fixedly provided at the bottom of the hopper, and an automatic weighing device installed at the bottom of the electric butterfly valve.
[0006] The beneficial effects of this utility model are as follows: This device has a dust suppression function when feeding powder into the hopper. When feeding powder into the hopper, the negative pressure fan is turned on. During the feeding process, the negative pressure fan draws air into the hopper through the three-way pipe and the dust collection hood. Simultaneously, through the passage formed by the three-way pipe, the ventilation hose, and the dust collection arc pipe, and utilizing the dust collection ports evenly arranged on the inner side of the arc of the dust collection arc pipe, negative pressure air is drawn into the area below the original position of the flip-up cover plate at the top of the hopper. The dust generated after the powder enters the hopper is drawn into the negative pressure fan through the dust collection hood. The dust is fed into the dust collection bag in parallel. By using the suction arc pipe and suction port, negative pressure can be directly drawn into the inside of the feeding port formed after the flip-top cover is opened. The dust in this location is then fed into the three-way pipe through the suction arc pipe and suction port via the ventilation hose, and finally discharged into the dust collection bag for collection. This reduces the possibility of dust overflowing through this feeding port. Through the above design, the dust generated when workers feed powder into the hopper can be largely confined inside the hopper, greatly reducing the overflow and adverse effects on workers' health and the air environment of the workplace.
[0007] To avoid powder clumping:
[0008] As a further improvement to the above technical solution: the outer side of the hopper is provided with a heat insulation layer, and the inner side of the heat insulation layer is surrounded by an electric heating wire on the outer side of the hopper.
[0009] The beneficial effects of this improvement are as follows: When this device is in use, the hopper can be heated by an electric heating wire to keep the powder inside the hopper dry and prevent the powder from absorbing moisture and clumping. The heat insulation layer can reduce the loss of heat inside the hopper.
[0010] To open and close the flip-top cover:
[0011] As a further improvement to the above technical solution: a lever is provided on one side of the flip cover.
[0012] The beneficial effect of this improvement is that the paddle is used to flip the cover to open and close it.
[0013] In order to trap dust while expelling airflow:
[0014] As a further improvement to the above technical solution: the dust collection bag is a woven cloth bag.
[0015] The beneficial effects of this improvement are: while the woven bag can trap dust, it also allows the drawn-in air to be discharged through the breathable properties of the woven bag.
[0016] To allow the powder to flow smoothly downwards:
[0017] As a further improvement to the above technical solution: the steering transmission device includes a transmission shaft protective cover mounted on the hopper, a first transmission shaft and a second transmission shaft are rotatably mounted on the inner side of the transmission shaft protective cover, one end of the first transmission shaft is fixed to a first bevel gear, one end of the second transmission shaft is fixed to a second bevel gear, the first bevel gear and the second bevel gear mesh with each other, the top of the second transmission shaft is connected to a rotating paddle, and a motor is fixedly mounted on one end of the transmission shaft protective cover, the output end of the motor is fixed to the first transmission shaft.
[0018] The beneficial effects of this improvement are as follows: During the use of this device, when the powder inside the hopper cannot slide smoothly downwards due to the arching effect, the motor can be controlled to drive the first transmission shaft to rotate, which in turn drives the first bevel gear to rotate, which in turn drives the second bevel gear and the second transmission shaft to rotate, thereby driving the rotating paddle to rotate. The rotating paddle agitates the powder, breaking the arching effect and loosening the powder so that it can flow smoothly downwards.
[0019] To enable automatic weighing and feeding of materials:
[0020] As a further improvement to the above technical solution: the automatic weighing device includes a weighing chamber connected to an electric butterfly valve, a weighing sensor is provided inside the weighing chamber, a weighing box is provided on the top of the weighing sensor, and an electric slide valve is connected to the side of the weighing box.
[0021] The beneficial effects of this improvement are as follows: When feeding, opening the electric butterfly valve allows the powder inside the hopper to fall into the weighing box. The weight change of the weighing box is monitored in real time by the weighing sensor. When the weight increase inside the weighing box reaches the feeding amount, the electric butterfly valve is closed and the electric slide valve is opened. At the same time as stopping the continued feeding of powder into the weighing box, the powder inside the weighing box is discharged and put into the mixing container, thus completing the automatic weighing and feeding.
[0022] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the right front axonometric structure of this utility model;
[0024] Figure 2 This is a front sectional view of the present invention;
[0025] Figure 3 This is a side sectional view of the present invention;
[0026] Figure 4 This is an enlarged structural diagram of part A of this utility model;
[0027] Figure 5 This is a cross-sectional structural diagram of the present invention;
[0028] In the diagram: 1. Hopper; 2. Insulation layer; 3. Electric heating wire; 4. Fixed cover plate; 5. Flip-up cover plate; 6. Dust suction arc pipe; 7. Dust suction port; 8. Dust suction hood; 9. T-connector; 10. Ventilation hose; 11. Negative pressure fan; 12. First threaded connector; 13. Second threaded connector; 14. Dust collection bag; 15. Drive shaft protective cover; 16. First drive shaft; 17. First bevel gear; 18. Second drive shaft; 19. Second bevel gear; 20. Rotary paddle; 21. Motor; 22. Electric butterfly valve; 23. Weighing bin; 24. Weighing sensor; 25. Weighing box; 26. Electric slide gate valve. Detailed Implementation
[0029] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.
[0030] like Figure 1-5 As shown, an automated feeding device includes a hopper 1. A fixed cover plate 4 is fixedly installed on the top of the hopper 1. One end of the fixed cover plate 4 is connected to a hinged flip-up cover plate 5. A dust-suction arc-shaped pipe 6 is provided on the inner side of the top of the hopper 1, below the flip-up cover plate 5. The inner side of the arc of the dust-suction arc-shaped pipe 6 has evenly distributed dust-suction ports 7. A dust-suction hood 8 is installed through and installed on the top of the fixed cover plate 4. A three-way pipe 9 is connected to the top of the dust-suction hood 8. A ventilation hose 10 is connected between one end of the three-way pipe 9 and the dust-suction arc-shaped pipe 6. The top end of the three-way pipe 9 is connected to the negative pressure fan 11. One end of the negative pressure fan 11 is connected to the first threaded connector 12. One end of the first threaded connector 12 is threadedly connected to the second threaded connector 13. One end of the second threaded connector 13 is connected to the dust collection bag 14. A steering transmission device is installed through and fixedly between the outer and inner sides of the hopper 1. A rotary paddle 20 is connected to the top of the steering transmission device. An electric butterfly valve 22 is fixedly installed at the bottom of the hopper 1. An automatic weighing device is installed at the bottom of the electric butterfly valve 22.
[0031] This device has a dust suppression function when powder is fed into the hopper 1. When powder is fed into the hopper 1, the negative pressure fan 11 is turned on. During the feeding of powder, the negative pressure fan 11 simultaneously creates a negative pressure airflow inside the hopper 1 through the passage of the three-way pipe 9 and the dust suction hood 8. At the same time, through the passage formed by the three-way pipe 9, the ventilation hose 10, and the dust suction arc pipe 6, and using the dust suction ports 7 evenly arranged on the inner side of the arc of the dust suction arc pipe 6, a negative pressure airflow can be created on the top of the hopper 1 below the original position of the flip cover plate 5. The dust generated after the powder enters the inside of the hopper 1 is sucked into the negative pressure fan 11 through the dust suction hood 8 and discharged side by side. The dust is collected in the dust collection bag 14. Through the installation of the suction arc pipe 6 and the suction port 7, negative pressure can be directly drawn into the inside of the feeding port formed after the flip cover 5 is opened. The dust in this position is fed into the three-way pipe 9 through the suction arc pipe 6 and the suction port 7 via the ventilation hose 10, and finally discharged into the dust collection bag 14 for collection. This reduces the possibility of dust overflowing through this feeding port. Through the above design, the dust generated when workers feed powder into the hopper 1 can be largely confined inside the hopper 1, greatly reducing the overflow and reducing the adverse effects on workers' health and the air environment of the workplace.
[0032] The outer side of the hopper 1 is provided with a heat insulation layer 2, and the inner side of the heat insulation layer 2 is surrounded by an electric heating wire 3.
[0033] When this device is in use, the hopper 1 can be heated by the electric heating wire 3 to keep the powder inside the hopper 1 dry and prevent the powder from absorbing moisture and clumping. The heat insulation layer 2 can reduce the loss of heat inside the hopper 1.
[0034] A lever is provided on one side of the flip cover 5.
[0035] The lever is used to flip the cover 5 to open and close it.
[0036] The dust collection bag 14 is a woven cloth bag.
[0037] The woven bag can trap dust while allowing the air drawn in by 11 to escape through its breathable properties.
[0038] The steering transmission device includes a transmission shaft protective cover 15 mounted on the hopper. A first transmission shaft 16 and a second transmission shaft 18 are rotatably mounted on the inner side of the transmission shaft protective cover 15. One end of the first transmission shaft 16 is fixed to a first bevel gear 17, and one end of the second transmission shaft 18 is fixed to a second bevel gear 19. The first bevel gear 17 and the second bevel gear 19 mesh with each other. The top of the second transmission shaft 18 is connected to a rotary paddle 20. A motor 21 is fixedly mounted on one end of the transmission shaft protective cover 15, and the output end of the motor 21 is fixed to the first transmission shaft 16.
[0039] During the use of this device, when the powder inside the hopper 1 cannot slide smoothly downwards due to the arching effect, the motor 21 can be controlled to drive the first transmission shaft 16 to rotate. The first transmission shaft 16 drives the first bevel gear 17 to rotate, and the first bevel gear 17 drives the second bevel gear 19 to rotate together with the second transmission shaft 18, which in turn drives the rotating paddle 20 to rotate. The rotating paddle 20 agitates the powder, thereby breaking the arching effect, making the powder loose, and allowing it to flow smoothly downwards.
[0040] The automatic weighing device includes a weighing chamber 23 connected to an electric butterfly valve 22. A weighing sensor 24 is provided inside the weighing chamber 23. A weighing box 25 is provided on the top of the weighing sensor 24. An electric slide valve 26 is connected to the side of the weighing box 25.
[0041] When feeding, the electric butterfly valve 22 is opened, allowing the powder inside the hopper 1 to fall into the weighing box 25. The weight change of the weighing box 25 is monitored in real time by the weighing sensor 24. When the weight increase inside the weighing box 25 reaches the feeding amount, the electric butterfly valve 22 is closed and the electric slide valve 26 is opened. At the same time, the powder inside the weighing box 25 is discharged into the mixing container while the powder is stopped from being fed into the weighing box 25, thus completing the automatic weighing and feeding.
[0042] The working principle and usage process of this utility model are as follows: When using this device, the electric heating wire 3 heats the hopper 1, keeping the powder inside the hopper 1 dry and preventing moisture absorption and clumping. The insulation layer 2 reduces heat loss from the hopper 1. Simultaneously, this device has a dust suppression function when adding powder to the hopper 1. When adding powder, the negative pressure fan 11 is turned on. During powder addition, the negative pressure fan 11 creates negative pressure airflow inside the hopper 1 through the three-way pipe 9 and the dust collection hood 8, while simultaneously creating negative pressure airflow through the three-way pipe 9, the ventilation hose 10, and the dust collection arc. The passage formed by pipe 6, with suction ports 7 evenly arranged on the inner side of the arc of the suction pipe 6, can create negative pressure airflow to the area below the original position of the flip-top cover 5 at the top of the hopper 1. Dust generated after the powder enters the inner side of the hopper 1 is sucked into the negative pressure fan 11 through the dust hood 8 and discharged into the dust collection bag 14. Furthermore, the arrangement of the suction arc pipe 6 and suction ports 7 can directly create negative pressure on the inner side of the feeding port formed after the flip-top cover 5 is opened, drawing the dust in this location through the suction arc pipe 6 and suction ports 7 into the three-way pipe 9 via the ventilation hose 10, and finally into the dust collection bag 14 for collection. To reduce the possibility of dust overflowing through the feeding port, the electric butterfly valve 22 is opened during feeding, allowing the powder inside the hopper 1 to fall into the weighing box 25. The weight change in the weighing box 25 is monitored in real time by the weighing sensor 24. When the weight increase inside the weighing box 25 reaches the feeding amount, the electric butterfly valve 22 is closed and the electric slide valve 26 is opened. This stops the continued feeding of powder into the weighing box 25 and discharges the powder into the mixing container, completing the automatic weighing and feeding process. During the use of this device, if the powder inside the hopper 1 cannot flow smoothly due to the arching effect... When the dust bag slides downwards, the motor 21 can be controlled to drive the first transmission shaft 16 to rotate. The first transmission shaft 16 drives the first bevel gear 17 to rotate, and the first bevel gear 17 drives the second bevel gear 19 to rotate together with the second transmission shaft 18, which in turn drives the rotating paddle 20 to rotate. The rotating paddle 20 agitates the powder to break the arching effect, making the powder loose and allowing it to flow smoothly downwards. When the dust bag 14 is full, the second threaded connector 13 can be removed from the first threaded connector 12 to empty the dust from the dust bag 14. Then, the second threaded connector 13 and the first threaded connector 12 can be reconnected.
[0043] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.
[0044] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0045] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.
Claims
1. An automated feeding device, characterized in that: The hopper includes a hopper (1), with a fixed cover plate (4) fixedly installed on the top of the hopper (1). One end of the fixed cover plate (4) is connected to a hinged flip cover plate (5). A dust-collecting arc-shaped pipe (6) is provided on the inner side of the top of the hopper (1) below the flip cover plate (5). The inner side of the arc of the dust-collecting arc-shaped pipe (6) is provided with evenly distributed dust-collecting ports (7). A dust-collecting hood (8) is installed through the top of the fixed cover plate (4). A three-way pipe (9) is connected to the top of the dust-collecting hood (8). A ventilation hose (10) is connected between one end of the three-way pipe (9) and the dust-collecting arc-shaped pipe (6). The top end of the three-way pipe (9) is connected to the negative pressure fan (11), one end of the negative pressure fan (11) is connected to the first threaded joint (12), one end of the first threaded joint (12) is threadedly connected to the second threaded joint (13), one end of the second threaded joint (13) is connected to the dust collection bag (14), a steering transmission device is installed through and fixed between the outer and inner sides of the hopper (1), a rotary paddle (20) is connected to the top of the steering transmission device, an electric butterfly valve (22) is fixedly installed at the bottom of the hopper (1), and an automatic weighing device is installed at the bottom of the electric butterfly valve (22).
2. The automated feeding device according to claim 1, characterized in that: The outer side of the hopper (1) is provided with a heat insulation layer (2), and the inner side of the heat insulation layer (2) is surrounded by an electric heating wire (3) on the outer side of the hopper (1).
3. The automated feeding device according to claim 1, characterized in that: A lever is provided on one side of the flip cover (5).
4. The automated feeding device according to claim 1, characterized in that: The dust collection bag (14) is a woven cloth bag.
5. An automated feeding device according to claim 1, characterized in that: The steering transmission device includes a transmission shaft protective cover (15) mounted on the hopper. A first transmission shaft (16) and a second transmission shaft (18) are rotatably mounted on the inner side of the transmission shaft protective cover (15). One end of the first transmission shaft (16) is fixed to a first bevel gear (17), and one end of the second transmission shaft (18) is fixed to a second bevel gear (19). The first bevel gear (17) and the second bevel gear (19) mesh with each other. The top of the second transmission shaft (18) is connected to a rotary paddle (20). A motor (21) is fixedly mounted on one end of the transmission shaft protective cover (15), and the output end of the motor (21) is fixed to the first transmission shaft (16).
6. The automated feeding device according to claim 1, characterized in that: The automatic weighing device includes a weighing chamber (23) connected to an electric butterfly valve (22). The weighing chamber (23) is equipped with a weighing sensor (24) inside. The weighing sensor (24) is equipped with a weighing box (25) on its top. An electric slide valve (26) is connected to the side of the weighing box (25).