Plain-end magnetic powder stirrer

Abstract

The utility model discloses a plain-end magnetic powder stirrer which comprises a machine base and a stirring shaft, a stirring barrel is arranged at the top of the machine base, the stirring shaft is rotatably connected to the center in the bottom of the machine base, a rotating seat is fixedly connected to the surface of the stirring shaft, and scrapers are connected to the two sides of the rotating shaft through replacement assemblies and press two sets of pressing blocks inwards. The pressing block moves and compresses a spring through a connecting plate to drive two groups of connecting plates and clamping blocks to move and approach each other, so that the clamping blocks are separated from clamping connection with clamping grooves in the surface of a reinforcing plate, and inserting rods on the surface of the reinforcing plate are pulled out from inserting grooves in the surface of a stirring rod, so that the scraper is disassembled; the inserting rods on the surface of the reinforcing plate are inserted into the inserting grooves, the operation is repeated to press the two sets of pressing blocks, when the clamping blocks are inserted into the clamping grooves, the two sets of pressing blocks are loosened to enable the springs to rebound, the clamping blocks are driven to be connected with the clamping grooves in a clamped mode, and therefore the scraper and the stirring rod are fixed, installation is convenient, and the replacement efficiency of the scraper is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic powder stirring, and in particular relates to a flat-mouth magnetic powder stirring machine. Background Art

[0002] Magnetic powder is a kind of hard magnetic single-domain particle. Before the magnetic powder is processed and mixed, the magnetic powder with magnetic attraction and agglomeration needs to be placed inside the mixer, and the magnetic powder with magnetic attraction and agglomeration needs to be evenly dispersed by the mixing blades of the mixer to facilitate the subsequent mixing and mixing.

[0003] The existing method is to add magnetic powder that has been agglomerated by magnetic attraction into a mixer, break up the magnetic powder that has been agglomerated by magnetic attraction through a stirring rod, and scrape off the magnetic powder that has been magnetically attracted to the inner wall of the mixer through scrapers on both sides of the stirring rod, so that the magnetic powder can be evenly stirred to avoid waste. However, since the scraper contacts the inner wall of the mixer during rotation, the scraper is greatly worn after the scraper frequently contacts the inner wall of the mixer. Long-term wear makes the distance between the scraper and the inner wall of the mixer farther and farther, so the effect of scraping the magnetic powder on the inner wall of the mixer is poor. Therefore, the scraper needs to be replaced regularly to ensure that the scraper can scrape the magnetic powder normally. However, since the scraper is fixedly connected to the stirring rod inside the mixer, the stirring rod needs to be disassembled as a whole when replacing the scraper, and the stirring rod and the scraper need to be replaced, which makes it more troublesome to replace the scraper, and greatly reduces the efficiency of replacing the scraper. Utility Model Content

[0004] The utility model aims to provide a flat-mouth magnetic powder mixer to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a flat-mouth magnetic powder mixer, comprising:

[0006] A machine base, wherein a mixing drum is provided on the top of the machine base;

[0007] A stirring shaft, the stirring shaft is rotatably connected to the inner center of the bottom of the machine base, a rotating seat is fixedly connected to the surface of the stirring shaft, a rotating shaft is threadedly connected to the top of the rotating seat, and scrapers for scraping off the magnetic powder on the inner wall of the mixing drum are connected to both sides of the rotating shaft through a replacement component, and the scraper can be disassembled from the rotating shaft by disengaging the block of the replacement component from the scraper.

[0008] Preferably, the replacement assembly includes a pressure block and a connecting plate, connecting rods are fixedly connected to both sides of the middle of the rotating shaft, the pressure block is provided in two groups and is slidably connected to one end of the connecting rod, and the connecting plate is fixedly connected to one end of the pressure block located in the connecting rod.

[0009] Preferably, two groups of springs are fixedly connected between the two groups of connecting plates, the clamping block is fixedly connected to the connecting plates, and one end of the clamping block movably passes through the connecting plates.

[0010] Preferably, a reinforcing plate is provided on the surface of the scraper, a clamping groove is provided in the middle of the reinforcing plate, and the clamping block is engaged with the clamping groove.

[0011] Preferably, stirring rods are fixedly connected to both sides of the top and bottom of the rotating shaft, and a slot is provided in one end of the stirring rod, and plug rods are fixedly connected to the top and bottom of the reinforcing plate, and the plug rods are plugged into the slots.

[0012] Preferably, a motor and a gearbox are provided on the surface of the base, and sprockets are connected to the output shaft surfaces of the motor and the gearbox. The two sets of sprockets are connected by a chain drive. The output shaft of the gearbox is connected to the stirring shaft. The speed of the stirring shaft can be changed by adjusting the gearbox to achieve the best stirring effect.

[0013] Preferably, a plurality of stirring blades are provided on the surface of the stirring shaft, an inclined discharge port is provided on one side of the stirring drum, a forward / reverse switch is provided on the other side of the stirring drum and the forward / reverse switch is electrically connected to the motor, and the forward / reverse rotation of the motor is controlled by the forward / reverse switch.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) Add magnetic powder into the mixing drum through the top of the mixing drum, and start the motor. The output shaft of the motor drives the sprocket to rotate. The rotation of the sprocket on the surface of the motor output shaft drives the sprocket on the surface of the gearbox output shaft to rotate through the chain, so that the output shaft of the gearbox drives the mixing shaft and the rotating shaft to rotate. The rotating mixing shaft and the rotating shaft drive the mixing rod and the mixing blades to stir and loosen the agglomerated magnetic powder. When the rotating shaft rotates, the scrapers on both sides can be driven to rotate to scrape the inner wall of the mixing drum to prevent the magnetic powder from being adsorbed on the inner wall of the mixing drum, which causes uneven mixing of the magnetic powder.

[0016] (2) When the worn scraper needs to be replaced, the rotating shaft connected to the rotating seat thread is loosened, and the rotating shaft, the stirring rod, the connecting rod and the scraper are taken out of the mixing drum as a whole, and the two groups of pressure blocks are pressed inwardly, so that the pressure blocks move and compress the spring through the connecting plate. When the two groups of pressure blocks are close to each other, the two groups of connecting plates and the card blocks are driven to move and approach each other, so that the card blocks are disengaged from the card slots on the surface of the reinforcing plate, and the plug rod on the surface of the reinforcing plate is pulled out from the slots on the surface of the stirring rod, so that the reinforcing plate and the scraper are disengaged from the fixing of the stirring rod, so that the scraper is disassembled, making it easier to disassemble the scraper. When installing the scraper, the plug rod on the surface of the reinforcing plate is inserted into the slot, and the above operation is repeated to press the two groups of pressure blocks. When the card block is inserted into the slot, the two groups of pressure blocks are released to make the spring rebound, driving the card block to engage with the slot, so that the scraper and the stirring rod are fixed. The installation is more convenient, which greatly improves the efficiency of scraper replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the clamping connection between the clamping block and the clamping slot of the utility model.

[0020] In the figure: 1. base; 2. mixing drum; 3. mixing shaft; 4. rotating base; 5. rotating shaft; 6. scraper; 7. replacement component; 8. pressure block; 9. connecting plate; 10. connecting rod; 11. spring; 12. reinforcing plate; 13. slot; 14. mixing rod; 15. plug rod; 16. motor; 17. gearbox; 18. sprocket; 19. chain; 20. mixing blade; 21. discharge port; 22. forward and reverse switch; 23. block; 24. observation window; 25. bolt; 26. guide rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-3 A flat-mouth magnetic powder mixer is shown, comprising:

[0023] A machine base 1, wherein a mixing drum 2 is provided on the top of the machine base 1;

[0024] A stirring shaft 3 is rotatably connected to the inner center of the bottom of the machine base 1. A rotating seat 4 is fixedly connected to the surface of the stirring shaft 3. A rotating shaft 5 is threadedly connected to the top of the rotating seat 4. Scrapers 6 for scraping magnetic powder off the inner wall of the mixing drum 2 are connected to both sides of the rotating shaft 5 through replacement components 7. The block 23 of the replacement component 7 is disengaged from the scraper 6 so that the scraper 6 can be removed from the rotating shaft 5.

[0025] The replacement assembly 7 includes a pressure block 8 and a connecting plate 9. Connecting rods 10 are fixedly connected to both sides of the middle of the rotating shaft 5. The pressure block 8 is provided with two groups and both are slidably connected to one end of the connecting rod 10. The connecting plate 9 is fixedly connected to one end of the pressure block 8 located in the connecting rod 10.

[0026] Two groups of springs 11 are fixedly connected between the two groups of connecting plates 9 . The clamping block 23 is fixedly connected to the connecting plate 9 , and one end of the clamping block 23 movably passes through the connecting plate 9 .

[0027] The scraper 6 is provided with a reinforcing plate 12 on its surface, a card slot 13 is provided in the middle of the reinforcing plate 12, the card block 23 is engaged with the card slot 13, and the reinforcing plate 12 is fixed to the scraper 6 to enhance the structural strength of the scraper 6.

[0028] The top and bottom sides of the rotating shaft 5 are fixedly connected with stirring rods 14, and a slot is provided in one end of the stirring rod 14. The top and bottom of the reinforcing plate 12 are fixedly connected with insertion rods 15, and the insertion rods 15 are plugged into the slots. When the rotating shaft 5 rotates, the stirring rods 14 can be driven to rotate to stir the magnetic powder in the mixing drum 2.

[0029] The surface of the base 1 is provided with a motor 16 and a gearbox 17, and the surfaces of the output shafts of the motor 16 and the gearbox 17 are connected with sprockets 18. The two sets of sprockets 18 are connected by a chain 19. The output shaft of the gearbox 17 is connected to the stirring shaft 3. The stirring shaft 3 is driven to rotate by the motor 16 and the gearbox 17. The speed of the stirring shaft 3 can be changed by the gearbox 17 to adapt the stirring shaft 3 to different stirring requirements. The speed of the stirring shaft 3 can be changed by adjusting the gearbox 17 to achieve the best stirring effect.

[0030] A plurality of stirring blades 20 are provided on the surface of the stirring shaft 3, a discharging port 21 is provided at an inclined position on one side of the stirring drum 2, a forward / reverse switch 22 is provided on the other side of the stirring drum 2, and the forward / reverse switch 22 is electrically connected to the motor 16. The rotation direction of the motor 16 can be controlled by the forward / reverse switch 22, so that the motor 16 rotates forward or reversely, thereby changing the motion trajectory of the stirred material and the stirring effect.

[0031] The flat-mouth magnetic powder mixer adds magnetic powder into the mixing drum 2 through the top of the mixing drum 2, and starts the motor 16 to work. The output shaft of the motor 16 drives the sprocket 18 to rotate. The sprocket 18 on the surface of the output shaft of the motor 16 rotates through the chain 19 to drive the sprocket 18 on the surface of the output shaft of the gearbox 17 to rotate, so that the output shaft of the gearbox 17 drives the mixing shaft 3 and the rotating shaft 5 to rotate. The rotating mixing shaft 3 and the rotating shaft 5 drive the mixing rod 14 and the mixing blade 20 to mix and loosen the agglomerated magnetic powder. The rotation of the rotating shaft 5 can drive the scrapers 6 on both sides to rotate and scrape the inner wall of the mixing drum 2 to mix and evenly disperse the magnetic powder. The mixing of the magnetic powder in the mixing drum 2 can be observed through the observation window 24. When the magnetic powder is mixed and evenly dispersed, it can be discharged through the inclined discharge port 21 to avoid powder leakage.

[0032] When the worn scraper 6 needs to be replaced, the rotating shaft 5 threadedly connected to the rotating seat 4 is loosened, and the rotating shaft 5, the stirring rod 14, the connecting rod 10 and the scraper 6 are taken out of the mixing drum 2 as a whole, and the two groups of pressing blocks 8 are pressed inwardly, so that the pressing blocks 8 move and compress the springs 11 through the connecting plates 9. When the two groups of pressing blocks 8 approach each other, the two groups of connecting plates 9 and the card blocks 23 are driven to move and approach each other, and when the two groups of card blocks 23 approach each other, one end located in the card slot 13 can slide on the surface of the guide rod 26, so that the stability of the movement of the card block 23 can be enhanced. After the card block 23 moves, it is disengaged from the card slot 13 on the surface of the reinforcing plate 12, and the plug rod 15 on the surface of the reinforcing plate 12 is pulled out from the slot on the surface of the stirring rod 14. The reinforcing plate 12 and the scraper 6 are separated from the fixation with the stirring rod 14, so that the scraper 6 can be disassembled, making it easier to disassemble the scraper 6. When installing the scraper 6, the insertion rod 15 on the surface of the reinforcing plate 12 is inserted into the slot, and the above operation is repeated to press the two groups of pressure blocks 8. When the clamping block 23 is inserted into the clamping groove 13, the two groups of pressure blocks 8 are released to make the spring 11 rebound, driving the clamping block 23 to clamp with the clamping groove 13, so that the scraper 6 and the stirring rod 14 are fixed. The installation is more convenient, and the replacement efficiency of the scraper 6 is greatly improved. After the scraper 6 is installed, the bolt 25 can be threadedly connected to the threaded groove in the pressure block 8, so as to limit the pressure block 8, so that the pressure block 8 cannot be pressed, thereby enhancing the safety of the clamping block 23 and the clamping groove 13.

[0033] The mixer model of the utility model is a JW350 forced multifunctional flat-mouth mixer. Through the principle of slow stirring of the mixer, the magnetic powder that is easy to compact can be stirred evenly and loosely to meet the requirements for subsequent batching.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flat-mouth magnetic powder mixer, characterized in that: include: A machine base (1), wherein a mixing drum (2) is provided on the top of the machine base (1); A stirring shaft (3), the stirring shaft (3) being rotatably connected to the inner center of the bottom of the machine base (1), the surface of the stirring shaft (3) being fixedly connected to a rotating seat (4), the top of the rotating seat (4) being threadedly connected to a rotating shaft (5), both sides of the rotating shaft (5) being connected to scrapers (6) for scraping off magnetic powder on the inner wall of the stirring drum (2) via a replacement component (7), the scrapers (6) being detached from the clamping block (23) of the replacement component (7), so that the scrapers (6) can be removed from the rotating shaft (5); The replacement assembly (7) comprises a pressing block (8) and a connecting plate (9); connecting rods (10) are fixedly connected to both sides of the middle of the rotating shaft (5); the pressing block (8) is provided with two groups and both are slidably connected to one end of the connecting rod (10); the connecting plate (9) is fixedly connected to one end of the pressing block (8) located inside the connecting rod (10); Two groups of springs (11) are fixedly connected between the two groups of connecting plates (9); the clamping block (23) is fixedly connected to the connecting plate (9) and one end of the clamping block (23) movably passes through the connecting plate (9); A reinforcing plate (12) is provided on the surface of the scraper (6), a clamping groove (13) is provided in the middle of the reinforcing plate (12), and the clamping block (23) is matched and clamped with the clamping groove (13).

2. A flat-mouth magnetic powder mixer according to claim 1, characterized in that: The top and bottom sides of the rotating shaft (5) are fixedly connected to stirring rods (14), and a slot is provided in one end of the stirring rod (14). The top and bottom of the reinforcing plate (12) are fixedly connected to insertion rods (15), and the insertion rods (15) are plugged into the slots in a matching manner.

3. A flat-mouth magnetic powder mixer according to claim 1, characterized in that: A motor (16) and a gearbox (17) are provided on the surface of the machine base (1); sprockets (18) are connected to the surfaces of the output shafts of the motor (16) and the gearbox (17); the two sets of sprockets (18) are connected by a chain (19); and the output shaft of the gearbox (17) is connected to the stirring shaft (3).

4. A flat-mouth magnetic powder mixer according to claim 3, characterized in that: A plurality of stirring blades (20) are provided on the surface of the stirring shaft (3); a discharging port (21) arranged in an inclined manner is provided on one side of the stirring drum (2); a forward / reverse switch (22) is provided on the other side of the stirring drum (2); and the forward / reverse switch (22) is electrically connected to the motor (16).

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