Powder feeding structure of magnetic field forming press

Abstract

The utility model discloses a powder feeding structure of a magnetic field forming press, which belongs to the technical field of powder feeding of magnetic field forming presses and comprises a base and a punching machine mounted on the base, a feeding plate is slidably connected to the side edge of the base, a lower striker plate is slidably connected into the feeding plate, and a discharge spring is fixedly connected to the tail of the feeding plate. The discharging spring is fixedly connected with a limiting plate fixedly connected with the lower material blocking plate, the end of the feeding plate is fixedly connected with a feeding pipe, the feeding plate and a base support are provided with an electric telescopic rod, the base is fixedly connected with a support, and the top of the support is rotationally connected with a lower rotating disc which is sleeved with an upper rotating disc. The upper rotating disc and the lower rotating disc are fixedly connected with sleeves which are mutually sleeved, the lower rotating disc is coaxially and rotatably connected with an adjusting screw rod, the adjusting screw rod is in threaded connection with the upper rotating disc, the support is fixedly connected with an arc-shaped baffle, and the arc-shaped baffle is in sliding connection with a clamping plate; the feeding amount of powder can be controlled, and the situation that powder overflows, and the stamping cost and cleaning difficulty are increased is avoided.

Description

Technical Field

[0001] This utility model relates to the field of powder feeding technology for magnetic field forming presses, specifically to a powder feeding structure for a magnetic field forming press. Background Technology

[0002] Rare earth permanent magnet materials are permanent magnet materials containing rare earth metals as alloying elements. Permanent magnet materials are those that retain strong magnetism for a long time after being magnetized and the external magnetic field is removed. Neodymium iron boron (NdFeB), as a type of rare earth permanent magnet material, possesses extremely high magnetic energy product and coercivity. Its high energy density has led to its widespread application in modern industry and electronics.

[0003] Neodymium iron boron (NdFeB) needs to be pressed into shape using a magnetic field forming press. The powder is filled into the mold and then pressed into shape before being sent to the next processing step. During the pressing process, the powder is filled quite full to ensure the molding quality. In the existing stamping press feeding structure, after feeding the punching hole of the stamping press, the punching hole is in a state of being flush with the table surface. This causes the powder to overflow during the stamping process. Considering production efficiency and safety issues, no dedicated personnel are assigned to clean up during the continuous filling and pressing process. This results in powder waste, increases stamping costs, and increases cleaning difficulty. Summary of the Invention

[0004] The technical problem of this utility model is to provide a powder feeding structure for a magnetic field forming press.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a base and a stamping machine mounted on the base. A feeding plate is slidably connected to the side of the base, a lower baffle plate is slidably connected inside the feeding plate, a discharge spring is fixedly connected to the tail of the feeding plate, a feeding pipe is fixedly connected to the end of the feeding plate, an electric telescopic rod is installed between the feeding plate and the base, a bracket is fixedly connected to the top of the base, a lower turntable is rotatably connected to the top of the bracket, an upper turntable is sleeved inside the lower turntable, and both the upper and lower turntables are fixedly connected to mutually sleeved tubes. An arc-shaped baffle is fixedly connected to the top of the bracket, a locking plate is slidably connected below the arc-shaped baffle, a return spring is fixedly connected between the locking plate and the bracket, a drive rack is fixedly connected to the tail of the locking plate, the drive rack meshes with a drive gear fixedly connected to the lower turntable, and a feeding mechanism is fixedly connected to the side of the base.

[0006] As a further embodiment of this utility model, the feeding plate is slidably connected to a finished product push plate, and the finished product push plate and the feeding plate are respectively meshed with an upper speed-increasing gear and a lower speed-increasing gear. The upper speed-increasing gear and the lower speed-increasing gear are coaxially arranged and rotatably connected to the base. A positioning groove is provided at the end of the finished product push plate.

[0007] As a further embodiment of this utility model, the unloading spring is fixedly connected to a limiting plate that is fixedly connected to the lower baffle plate.

[0008] As a further embodiment of this utility model, the lower turntable is coaxially rotatably connected to an adjusting screw, the adjusting screw is threadedly connected to the upper turntable, the top of the adjusting screw passes through the upper turntable and is fixedly connected to an adjusting disc, and the adjusting disc is eccentrically provided with a handle.

[0009] As a further embodiment of this utility model, the electric telescopic rod is electrically connected to a controller, and the controller is electrically connected to a rangefinder for measuring the distance between the upper and lower dies of the stamping machine.

[0010] As a further embodiment of this utility model, the feeding mechanism includes a support rod fixedly connected to the base, a storage box fixedly connected to the support rod, a feeding pipe fixedly connected to the bottom of the storage box, and an adjusting pipe slidably connected to the outer wall of the feeding pipe.

[0011] As a further embodiment of this utility model, the sleeve fixedly connected to the lower turntable is fitted outside the sleeve fixedly connected to the upper turntable.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, the upper turntable and the sleeve fixedly connected to it are adjusted up and down by adjusting the screw, thereby changing the depth between the two sleeves and adjusting the amount of material fed. This allows for the addition of appropriate powder according to the stamping requirements, preventing the powder from being flush with the stamping hole or overflowing, which would cause some powder to fall into the stamping hole of the stamping machine and overflow, resulting in unnecessary waste of powder during the stamping process, increasing stamping costs, and reducing cleaning difficulty. In addition, the feeding pipe squeezes the clamping plate, and the clamping plate drives the drive gear to rotate through the drive rack, rotating the sleeve filled with powder half a turn to be coaxial with the feeding pipe. The powder falls into the feeding pipe, and the electric telescopic rod sends the feeding plate and feeding pipe to be coaxial with the stamping hole, realizing automatic feeding. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall assembly structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the feeding plate and its connection structure of the present invention;

[0018] Figure 4 This is a cross-sectional structural diagram of the upper turntable and its connection relationship of this utility model;

[0019] Figure 5 This is a cross-sectional structural diagram of the feeding plate and its connection relationship of this utility model;

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Base; 2. Stamping machine; 3. Feeding plate; 4. Lower baffle plate; 5. Unloading spring; 6. Limiting plate; 7. Feeding pipe; 8. Electric telescopic rod; 9. Bracket; 10. Lower turntable; 11. Upper turntable; 12. Sleeve; 13. Adjusting screw; 14. Clamping plate; 15. Return spring; 16. Drive gear; 17. Drive rack; 18. Finished product push plate; 19. Upper speed-increasing gear; 20. Lower speed-increasing gear; 21. Positioning groove; 22. Adjusting disc; 23. Handle; 24. Rangefinder; 25. Support rod; 26. Storage box; 27. Feeding pipe; 28. Adjusting pipe; 29. ​​Arc-shaped baffle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5This utility model provides a technical solution: it includes a base 1 and a stamping machine 2 mounted on the base 1. A feeding plate 3 is slidably connected to the side of the base 1, and a lower baffle plate 4 is slidably connected inside the feeding plate 3. A discharge spring 5 is fixedly connected to the tail of the feeding plate 3, and a limiting plate 6 fixedly connected to the lower baffle plate 4 is fixedly connected to the discharge spring 5. A feeding pipe 7 is fixedly connected to the end of the feeding plate 3. An electric telescopic rod 8 is installed between the feeding plate 3 and the base 1. A bracket 9 is fixedly connected to the base 1, and a lower turntable 10 is rotatably connected to the top of the bracket 9. The lower turntable 10 is fitted with an upper... Turntable 11, upper turntable 11 and lower turntable 10 are all fixedly connected with sleeves 12 that are nested together. The lower turntable 10 is coaxially rotatably connected with an adjusting screw 13. The adjusting screw 13 is threadedly connected to the upper turntable 11. The bracket 9 is fixedly connected with an arc-shaped baffle 29. The arc-shaped baffle 29 is slidably connected with a locking plate 14. A return spring 15 is fixedly connected between the locking plate 14 and the locking plate 15. A drive rack 17 is fixedly connected to the tail of the locking plate 14. The drive rack 17 meshes with a drive gear 16 that is fixedly connected to the lower turntable 10. A feeding mechanism is fixedly connected to the side of the base 1.

[0024] In use, the powder is poured into the feeding mechanism, which injects the powder into the sleeve 12 between the lower turntable 10 and the upper turntable 11. The sleeve 12, which is stacked on top of each other, is filled with a sufficient amount of powder. The arc-shaped baffle 29, located at the bottom of the lower turntable 10, prevents the powder from falling and keeps it inside the sleeve 12. When the moving end of the press 2 drives the upper mold to rise, the moving end of the electric telescopic rod 8 extends and moves the feeding plate 3 away from the center of the lower mold. When the feeding pipe 7 at the top of the feeding plate 3 contacts the locking plate 14, the locking plate 14 drives the driving gear 16 to rotate through the driving rack 17. The driving gear 16 drives the lower turntable 10 to rotate, causing the axis of the lower turntable 10 to rotate half a turn. The axis of the sleeve 12 coincides with the feeding pipe 7, and the powder in the sleeve 12 falls into the feeding pipe 7. When the moving end of the press 2 drives the upper mold to rise, the powder is released into the sleeve 12. When the die descends, the movable end of the electric telescopic rod 8 retracts, and drives the feeding plate 3 to move downward to the center of the mold. The feeding tube 7 gradually disengages from the locking plate 14. The elastic force of the return spring 15 pushes the locking plate 14 back to its original position. The locking plate 14, together with the arc-shaped baffle 29, can block the material powder from falling, avoiding powder leakage and unnecessary waste. When the feeding tube 7 is coaxial with the punching hole of the press 2, the powder in the feeding tube 7 falls into the punching hole, thereby realizing automatic powder filling. In addition, rotating the adjusting screw 13 can adjust the height of the upper turntable 11, thereby changing the depth of the sleeve 12, realizing the adjustment of the feeding amount, so that it can fill a sufficient amount of powder and prevent the powder from overflowing after falling into the punching hole of the press 2, avoiding unnecessary waste during the powder punching process, and also reducing the cleaning difficulty.

[0025] In this invention, the upper turntable 11 and the sleeve 12 fixedly connected to it are adjusted up and down by adjusting the screw 13, thereby changing the depth between the two sleeves 12 and adjusting the amount of material to be fed. This allows for the provision of appropriate powder according to the stamping requirements. For example, the required filling mass can be determined based on the quality after molding, avoiding the powder from being flush with the stamping hole or overflowing, which would cause some powder to fall into the stamping hole of the stamping machine 2 and overflow, resulting in unnecessary waste of powder during the stamping process, increasing the stamping cost, and reducing the cleaning difficulty. In addition, the feeding pipe 7 squeezes the clamping plate 14, and the clamping plate 14 drives the drive gear 16 to rotate through the drive rack 17, rotating the sleeve 12 filled with powder half a turn to be coaxial with the feeding pipe 7. The powder falls into the feeding pipe 7, and the electric telescopic rod 8 sends the feeding plate 3 and the feeding pipe 7 to be coaxial with the stamping hole, realizing automatic feeding.

[0026] As a further embodiment of this utility model, the feeding plate 3 is slidably connected to the finished product push plate 18, and the finished product push plate 18 and the feeding plate 3 are respectively meshed with the upper speed-increasing gear 19 and the lower speed-increasing gear 20. The upper speed-increasing gear 19 and the lower speed-increasing gear 20 are coaxially arranged and rotatably connected to the base 1.

[0027] In use, the feeding plate 3 moves to rotate the upper speed-increasing gear 19. The upper speed-increasing gear 19 drives the finished product push plate 18 to move through the lower speed-increasing gear 20, which is coaxially fixedly connected. The finished product push plate 18 first cleans the lower mold. When the finished product push plate 18 contacts the product, it pushes it to one side, realizing the cleaning of the lower mold and unloading at the same time as feeding. This keeps the lower mold clean and prevents debris from entering the stamping hole, which would reduce the quality of the finished product. At the same time, it unloads the finished product, reduces stamping time, improves stamping efficiency, and reduces stamping costs.

[0028] As a further embodiment of this utility model, a positioning groove 21 is provided at the end of the finished push plate 18;

[0029] When in use, after the positioning groove 21 contacts the finished product, it can push the product to move while limiting its movement, so that it falls into the base 1 in the appropriate area, thereby reducing the difficulty and time of collecting the finished product.

[0030] As a further embodiment of this utility model, the top of the adjusting screw 13 passes through the upper turntable 11 and is fixedly connected to the adjusting disc 22, and the adjusting disc 22 is eccentrically provided with a handle 23;

[0031] In use, the adjustment disc 22 is rotated by the biased handle 23, which drives the adjustment screw 13 to rotate, making it easier to adjust the upper turntable 11.

[0032] As a further embodiment of this utility model, the electric telescopic rod 8 is electrically connected to a controller, and the controller is electrically connected to a rangefinder 24 for measuring the distance between the upper and lower dies of the stamping machine 2.

[0033] In use, the rangefinder 24 measures the distance between the upper mold and the top and transmits it to the controller. The controller controls the extension of the electric telescopic rod 8 according to the distance, so that this feeding structure can be equipped with more stamping machines 2, thus increasing its applicability.

[0034] As a further embodiment of this utility model, the feeding mechanism includes a support rod 25 fixedly connected to the base 1, a storage box 26 fixedly connected to the support rod 25, a feeding pipe 27 fixedly connected to the bottom of the storage box 26, and an adjusting pipe 28 slidably connected to the outer wall of the feeding pipe 27.

[0035] In use, when the sleeve 12, which is fixedly connected to the upper turntable 11, is coaxial with the feed pipe 27, the powder can enter the feed pipe 27. When the two are not coaxial, the upper turntable 11 acts to block the powder from falling, thus avoiding powder waste. When the upper turntable 11 is adjusted, the adjusting pipe 28 can move up and down, so that the upper turntable 11 always has the function of blocking the material. In addition, the adjusting pipe 28 is sleeved on the outer wall of the feed pipe 27. When feeding into the sleeve 12, the powder will not enter the gap between the adjusting pipe 28 and the feed pipe 27, thus avoiding powder waste and increasing resistance to the movement of the adjusting pipe 28.

[0036] As a further embodiment of this utility model, the sleeve 12 fixedly connected to the lower turntable 10 is sleeved outside the sleeve 12 fixedly connected to the upper turntable 11.

[0037] In use, the sleeve 12 fixedly connected to the upper turntable 11 is located inside the sleeve 12 fixedly connected to the lower turntable 10. When the powder enters or exits the sleeve 12, the powder will not enter the gap of the sleeve 12, resulting in powder waste and increased resistance to the movement of the sleeve 12.

Claims

1. A powder feeding structure for a magnetic field forming press, comprising a base (1) and a stamping press (2) mounted on the base (1), characterized in that: A feeding plate (3) is slidably connected to the side of the base (1), a lower baffle plate (4) is slidably connected inside the feeding plate (3), a discharge spring (5) is fixedly connected to the tail of the feeding plate (3), a feeding pipe (7) is fixedly connected to the end of the feeding plate (3), an electric telescopic rod (8) is installed between the feeding plate (3) and the base (1), a bracket (9) is fixedly connected to the top of the base (1), a lower turntable (10) is rotatably connected to the top of the bracket (9), an upper turntable (11) is sleeved inside the lower turntable (10), and the upper turntable (11) is... 1) Both the lower turntable (10) and the bracket (9) are fixedly connected with sleeves (12) that are nested together. The top of the bracket (9) is fixedly connected with an arc-shaped baffle (29). A locking plate (14) is slidably connected below the arc-shaped baffle (29). A return spring (15) is fixedly connected between the locking plate (14) and the bracket (9). A drive rack (17) is fixedly connected to the tail of the locking plate (14). The drive rack (17) meshes with a drive gear (16) that is fixedly connected to the lower turntable (10). A feeding mechanism is fixedly connected to the side of the base (1).

2. The powder feeding structure of a magnetic field forming press according to claim 1, characterized in that: The feeding plate (3) is slidably connected to the finished product push plate (18). The finished product push plate (18) and the feeding plate (3) are respectively meshed with an upper speed-increasing gear (19) and a lower speed-increasing gear (20). The upper speed-increasing gear (19) and the lower speed-increasing gear (20) are coaxially arranged and rotatably connected to the base (1). The end of the finished product push plate (18) is provided with a positioning groove (21).

3. The powder feeding structure of a magnetic field forming press according to claim 1, characterized in that: The unloading spring (5) is fixedly connected to a limiting plate (6) which is fixedly connected to the lower baffle plate (4).

4. The powder feeding structure of a magnetic field forming press according to claim 1, characterized in that: The lower turntable (10) is coaxially rotatably connected to an adjusting screw (13), the adjusting screw (13) is threadedly connected to the upper turntable (11), the top of the adjusting screw (13) passes through the upper turntable (11) and is fixedly connected to an adjusting disc (22), and the adjusting disc (22) is eccentrically provided with a handle (23).

5. The powder feeding structure of a magnetic field forming press according to claim 1, characterized in that: The electric telescopic rod (8) is electrically connected to a controller, which is electrically connected to a rangefinder (24) for measuring the distance between the upper and lower dies of the stamping machine (2).

6. The powder feeding structure of a magnetic field forming press according to claim 1, characterized in that: The feeding mechanism includes a support rod (25) fixedly connected to the base (1), a storage box (26) fixedly connected to the support rod (25), a feeding pipe (27) fixedly connected to the bottom of the storage box (26), and an adjusting pipe (28) slidably connected to the outer wall of the feeding pipe (27).

7. The powder feeding structure of a magnetic field forming press according to claim 1, characterized in that: The sleeve (12) that is fixedly connected to the lower turntable (10) is sleeved outside the sleeve (12) that is fixedly connected to the upper turntable (11).

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