Powder feeding device capable of achieving uniform laying

Abstract

The utility model relates to the technical field of powder feeding of forming machines, and particularly discloses a powder feeding device capable of uniformly laying powder, which is used for adjusting a reciprocating motion switching position of a powder feeding box. The bottom of the powder bin is connected with a mounting plate, the top of the workbench is connected with two positioning columns, the tops of the two positioning columns are connected with the same positioning plate, a corrugated pipe communicated with the powder bin is connected between the mounting plate and the positioning plate, a powder inlet communicated with the corrugated pipe is formed in the top of the powder feeding box, and the tops of the positioning plates are connected with sliding columns. The movable top plate reciprocates up and down, the powder bin moves up and down and extrudes the spring, the powder bin shakes up and down so as to promote uniform distribution of powder, meanwhile, the powder falls into the powder feeding box, then the powder feeding box can move to feed the powder under the driving of the switching mechanism, and due to the arrangement of the sliding column, the corrugated pipe and the spring, the powder bin can be conveniently shaken, and the powder feeding efficiency is improved. And stable discharging of the powder bin can be kept.

Description

Technical Field

[0001] The utility model relates to the technical field of powder feeding of a molding machine, in particular to a powder feeding device capable of evenly laying powder. Background Art

[0002] The powder feeding mechanism in a carbon brush forming machine is responsible for delivering a quantitative and uniform amount of raw materials, such as graphite powder, into the forming die to ensure the quality and consistency of the carbon brushes. Graphite powder and other raw materials in the powder hopper enter the metering mechanism under the influence of gravity or mechanical force. The conveying mechanism then transports the measured powder from the hopper into the forming die. Once in the forming die, the powder is compacted by the forming mechanism to form the carbon brush into its desired shape and density.

[0003] The existing patent announcement number CN211990919U discloses a powder feeding module for a powder forming machine, which includes a powder feeding module fixing plate, a reinforcing link block fixedly connected to the rear end of the powder feeding module fixing plate, a powder box fixedly installed on the top of the powder feeding module fixing plate, a servo motor for the up and down displacement of the powder adjusting rod fixedly installed on one side of the powder feeding module fixing plate, a powder feeding plate forward and backward cylinder fixing plate fixedly connected to the rear end of the powder feeding module fixing plate, and a top fixed plate for the forward and backward cylinder fixing plate of the powder feeding plate. It is connected to the powder feeding plate forward and backward cylinder, the top of the powder feeding plate forward and backward cylinder is fixedly connected to the powder feeding plate, and the bottom of the powder feeding plate is fixedly connected to the up and down displacement screw; the powder adjusting rod up and down displacement servo motor rises, the powder box displacement cylinder pushes out, and returns after it is in place, the powder adjusting rod up and down displacement servo motor descends to set the position, the powder cutting plate displacement cylinder pushes out, and returns after it is in place, the powder feeding plate forward and backward cylinder pushes out, the powder dropping and clamping cylinder pushes out, and returns after it is in place, and the powder dropping and clamping cylinder top is retracted, which can realize automatic powder feeding.

[0004] The aforementioned powder feeding module can automatically feed powder in a powder forming machine. However, during powder feeding, the powder falls from the powder box onto the powder feeding plate. The falling powder relies on its own gravity, affecting the uniformity of the powder feeding and hindering effective powder feeding. To address these issues, a powder feeding device that can evenly spread the powder is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide a powder feeding device that can evenly lay powder, so as to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A powder feeding device capable of evenly laying powder comprises a workbench and a powder bin, a fixed platform is installed on the top of the workbench, and a powder feeding box is slidably arranged on the top of the fixed platform;

[0008] A switching mechanism is provided on one side of the workbench for adjusting the reciprocating switching position of the powder feeding box;

[0009] The bottom of the powder bin is connected to the mounting plate, the top of the workbench is connected to two groups of positioning columns, the tops of the two groups of positioning columns are connected to the same group of positioning plates, a bellows connected to the powder bin is connected between the mounting plate and the positioning plate, the top of the powder feeding box is provided with a powder inlet connected to the bellows, the top of the positioning plate is connected to the sliding column, the mounting plate is provided with a sliding hole for the sliding column to pass through, the top and bottom of the mounting plate are both provided with springs sleeved on the sliding column, and the top of the sliding column is connected to a limiting plate;

[0010] One side of the powder bin is connected to the top plate, and one side of the workbench is provided with a fixing frame, on which a toggle mechanism is installed for toggling the top plate to move up and down reciprocatingly.

[0011] In an optional solution: the switching mechanism includes an extension plate and an electric push rod installed on the top of the extension plate, the extension plate is connected to one side of the workbench, a connecting rod is installed on one side of the powder feeding box, a connecting ring is connected to the connecting rod, and the telescopic end of the electric push rod is connected to the connecting ring.

[0012] In an optional solution, the fixing frame includes a horizontal plate and a vertical plate, and the bottoms of both ends of the horizontal plate are connected to the vertical plate.

[0013] In an optional solution: the toggle mechanism includes a lifting rod and a connecting rod rotatably connected to the bottom of the lifting rod, the connecting rod is rotatably connected to a rotating column at one end away from the lifting rod, and the two groups of vertical plates are rotatably installed on the side close to each other. The rotating column is connected between the two groups of turntables, and the end of the rotating column is connected to the eccentric point of the turntable. A motor for driving one group of turntables to rotate is installed on one group of the vertical plates, and a rectangular hole for sliding the lifting rod is provided on the horizontal plate. The top end of the lifting rod is rotatably connected to a roller, and the roller is in contact with the top plate.

[0014] In an optional solution: both sides of the powder feeding box are connected to guide bars, and a guide seat that slides with the guide bars is installed on the top of the fixed platform.

[0015] In an optional solution: the bottom of the workbench is connected to the frame, and the top of the workbench is installed with a forming mechanism.

[0016] In an optional solution: a powder cavity communicated with a powder inlet is provided in the powder feeding box, and a powder outlet communicated with the powder cavity is provided at the bottom of the powder feeding box.

[0017] In an optional solution, the limiting plate is fixed to the top of the sliding column by bolts.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The movable top plate in the utility model reciprocates up and down, the powder bin moves up and down and squeezes the spring, causing the powder bin to shake up and down to promote uniform distribution of the powder. At the same time, the powder falls into the powder feeding box, and then, driven by the switching mechanism, the powder feeding box can move to a different position to feed the powder.

[0020] The arrangement of the sliding column, bellows and spring in the utility model facilitates the shaking of the powder bin and maintains stable discharge of the powder bin;

[0021] In the utility model, the powder used for the carbon brush forming machine can be sent to the powder bin for storage, and the switching mechanism switches the position of the powder feeding box. After the powder inlet of the powder feeding box corresponds to the bellows, the powder can be easily output. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the present utility model.

[0023] Figure 2 This is a structural diagram of one side of the powder bin in the utility model.

[0024] Figure 3 It is a structural diagram of the mounting frame and the toggle mechanism in the utility model.

[0025] Figure 4 This is a schematic diagram of the bottom structure of the powder bin in the utility model.

[0026] Figure 5 It is a structural schematic diagram of one side of the utility model.

[0027] In the figure: 11. Frame; 12. Workbench; 13. Powder feeding box; 14. Forming mechanism; 15. Powder bin; 16. Extension plate; 17. Electric push rod; 18. Guide bar; 19. Guide seat; 20. Fixed table; 21. Vertical plate; 22. Horizontal plate; 23. Lifting rod; 24. Roller; 25. Top plate; 26. Connecting rod; 27. Rotating column; 28. Turntable; 29. Motor; 30. Mounting plate; 31. Bellows; 32. Positioning plate; 33. Positioning column; 34. Sliding column; 35. Spring; 36. Limiting piece. DETAILED DESCRIPTION

[0028] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 5 In this embodiment, a powder feeding device capable of evenly laying powder includes a workbench 12 and a powder bin 15. A fixed table 20 is installed on the top of the workbench 12, and a powder feeding box 13 is slidably provided on the top of the fixed table 20.

[0031] A switching mechanism is provided on one side of the workbench 12 for adjusting the reciprocating switching position of the powder feeding box 13;

[0032] The bottom of the powder bin 15 is connected to a mounting plate 30, and the top of the workbench 12 is connected to two groups of positioning posts 33. The tops of the two groups of positioning posts 33 are connected to the same group of positioning plates 32. A bellows 31 communicating with the powder bin 15 is connected between the mounting plate 30 and the positioning plate 32. A powder inlet communicating with the bellows 31 is provided on the top of the powder feeding box 13. The top of the positioning plate 32 is connected to a slide post 34. A sliding hole for the slide post 34 to pass through is provided on the mounting plate 30. Springs 35 sleeved on the slide post 34 are provided on the top and bottom of the mounting plate 30. The top of the slide post 34 is connected to a limiting piece 36.

[0033] One side of the powder bin 15 is connected to the top plate 25, and one side of the workbench 12 is provided with a fixing frame, on which a toggle mechanism is installed for toggling the top plate 25 to move up and down;

[0034] In this embodiment, the powder used for processing the carbon brush forming machine can be sent to the powder bin 15 for storage, and the switching mechanism can switch the position of the powder feeding box 13. After the powder inlet of the powder feeding box 13 corresponds to the bellows 31, the toggle mechanism toggles the top plate 25 up and down for reciprocating motion, and the powder bin 15 moves up and down and squeezes the spring 35. The powder bin shakes up and down to promote the uniform distribution of the powder. At the same time, the powder falls into the powder feeding box 13. Afterwards, driven by the switching mechanism, the powder feeding box 13 moves its position to feed powder. After the powder inlet at the top of the powder feeding box 13 is staggered with the positioning plate 32, the bottom opening of the bellows 31 can be closed.

[0035] In another embodiment, the switching mechanism includes an extension plate 16 and an electric push rod 17 installed on the top of the extension plate 16, the extension plate 16 is connected to one side of the workbench 12, a connecting rod is installed on one side of the powder feeding box 13, the connecting rod is connected to the connecting ring, and the telescopic end of the electric push rod 17 is connected to the connecting ring;

[0036] The electric push rod 17 can be extended and retracted to adjust the reciprocating movement of the powder feeding box 13 so that the powder feeding box 13 can perform powder receiving and powder feeding operations.

[0037] like Figure 2 and Figure 3 As shown, in another embodiment, the fixing frame includes a horizontal plate 22 and a vertical plate 21, and the bottoms of both ends of the horizontal plate 22 are connected to the vertical plates 21; in actual use, the vertical plates 21 can be fixed on the carbon brush forming machine.

[0038] like Figure 2 and Figure 3 As shown, in another embodiment, the toggle mechanism includes a lifting rod 23 and a connecting rod 26 rotatably connected to the bottom of the lifting rod 23, the connecting rod 26 is rotatably connected to a rotating column 27 at one end away from the lifting rod 23, and a turntable 28 is rotatably installed on the side close to the two groups of vertical plates 21, the rotating column 27 is connected between the two groups of turntables 28, and the end of the rotating column 27 is connected to the eccentric part of the turntable 28, one group of the vertical plates 21 is installed with a motor 29 for driving one group of turntables 28 to rotate, the horizontal plate 22 is provided with a rectangular hole for the sliding of the lifting rod 23, the top of the lifting rod 23 is rotatably connected to the roller 24, and the roller 24 is in contact with the top plate 25;

[0039] When the motor 29 is working, it can drive the turntable 28 to rotate, and the turntable 28 drives the rotating column 27 to rotate, thereby driving the lifting rod 23 to move up and down through the connecting rod 26, and the roller 24 can push the top plate 25 back and forth.

[0040] like Figure 2 As shown, in another embodiment, guide bars 18 are connected on both sides of the powder feeding box 13, and a guide seat 19 that slides with the guide bar 18 is installed on the top of the fixed platform 20; when the powder feeding box 13 moves horizontally, the guide bar 18 moves on the guide seat 19, so that the powder feeding box 13 moves stably.

[0041] like Figure 1 As shown, in another embodiment, the bottom of the workbench 12 is connected to the frame 11, and the top of the workbench 12 is installed with a forming mechanism 14; the forming mechanism 14 is a component of the carbon brush forming machine.

[0042] In another embodiment, a powder chamber connected to the powder inlet is provided in the powder feeding box 13, and a powder outlet connected to the powder chamber is provided at the bottom of the powder feeding box 13; the capacity and size of the powder chamber can be set according to actual needs, and the powder outlet can correspond to the forming cavity on the workbench 12 and the fixed table 20.

[0043] In another embodiment, the limiting plate 36 is fixed to the top of the sliding column 34 by bolts. By removing the bolts, the limiting plate 36 can be easily removed, which is beneficial for taking out the mounting plate 30 and the like.

[0044] The working principle of the present invention is as follows: the powder used for processing the carbon brush forming machine can be sent to the powder bin 15 for storage, the electric push rod 17 works and retracts, and the reciprocating movement of the powder feeding box 13 can be adjusted, so that the powder feeding box 13 can perform powder receiving and powder feeding operations, and the position of the powder feeding box 13 is switched. After the powder inlet of the powder feeding box 13 corresponds to the bellows 31, the motor 29 can drive the turntable 28 to rotate when working, and the turntable 28 drives the rotating column 27 to rotate, thereby driving the lifting rod 23 to lift and reciprocate through the connecting rod 26, and the roller 24 can push the top plate 25 back and forth, and the top plate 25 moves up and down. The powder bin 15 moves up and down and squeezes the spring 35, and the powder bin shakes up and down to promote uniform distribution of the powder. At the same time, the powder falls into the powder feeding box 13, and then, driven by the switching mechanism, the powder feeding box 13 moves to a different position for feeding powder. After the powder inlet at the top of the powder feeding box 13 is staggered with the positioning plate 32, the bottom opening of the bellows 31 can be closed.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A powder feeding device capable of evenly laying powder, comprising a workbench (12) and a powder bin (15), wherein a fixed platform (20) is mounted on the top of the workbench (12), and a powder feeding box (13) is slidably arranged on the top of the fixed platform (20); Its characteristics are: A switching mechanism is provided on one side of the workbench (12) for adjusting the reciprocating switching position of the powder feeding box (13); The bottom of the powder bin (15) is connected to the mounting plate (30), the top of the workbench (12) is connected to two groups of positioning columns (33), the tops of the two groups of positioning columns (33) are connected to the same group of positioning plates (32), a bellows (31) connected to the powder bin (15) is connected between the mounting plate (30) and the positioning plate (32), a powder inlet connected to the bellows (31) is provided on the top of the powder feeding box (13), the top of the positioning plate (32) is connected to a slide column (34), a sliding hole for the slide column (34) to pass through is provided on the mounting plate (30), a spring (35) sleeved on the slide column (34) is provided on the top and bottom of the mounting plate (30), and the top of the slide column (34) is connected to a limiting piece (36); One side of the powder bin (15) is connected to the top plate (25), and one side of the workbench (12) is provided with a fixing frame, on which a toggle mechanism is installed for toggling the top plate (25) to move up and down.

2. A powder feeding device capable of evenly laying powder according to claim 1, characterized in that: The switching mechanism comprises an extension plate (16) and an electric push rod (17) mounted on the top of the extension plate (16); the extension plate (16) is connected to one side of the workbench (12); a connecting rod is mounted on one side of the powder feeding box (13); a connecting ring is connected to the connecting rod; and the telescopic end of the electric push rod (17) is connected to the connecting ring.

3. The powder feeding device capable of evenly laying powder according to claim 1, characterized in that: The fixing frame comprises a transverse plate (22) and a vertical plate (21), and the bottoms of both ends of the transverse plate (22) are connected to the vertical plate (21).

4. The powder feeding device capable of evenly laying powder according to claim 3, characterized in that: The toggle mechanism comprises a lifting rod (23) and a connecting rod (26) rotatably connected to the bottom of the lifting rod (23); the connecting rod (26) is rotatably connected to a rotating column (27) at one end away from the lifting rod (23); a turntable (28) is rotatably installed on the adjacent side of the two groups of vertical plates (21); the rotating column (27) is connected between the two groups of turntables (28), and the end of the rotating column (27) is connected to the eccentric position of the turntable (28); a motor (29) for driving one group of turntables (28) to rotate is installed on one group of the vertical plates (21); a rectangular hole for sliding the lifting rod (23) is provided on the horizontal plate (22); the top end of the lifting rod (23) is rotatably connected to a roller (24), and the roller (24) is in contact with the top plate (25).

5. The powder feeding device capable of evenly laying powder according to claim 1, characterized in that: Both sides of the powder delivery box (13) are connected to guide bars (18), and a guide seat (19) that slides with the guide bars (18) is installed on the top of the fixed platform (20).

6. The powder feeding device capable of evenly laying powder according to claim 1, characterized in that: The bottom of the workbench (12) is connected to the frame (11), and the top of the workbench (12) is installed with a forming mechanism (14).

7. The powder feeding device capable of evenly laying powder according to claim 1, characterized in that: A powder cavity communicating with a powder inlet is provided in the powder feeding box (13), and a powder outlet communicating with the powder cavity is provided at the bottom of the powder feeding box (13).

8. The powder feeding device capable of evenly laying powder according to claim 1, characterized in that: The limiting piece (36) is fixed to the top of the sliding column (34) by means of bolts.

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