Multi-stage crusher for producing dry-pressing magnetic powder

Abstract

The utility model belongs to the technical field of dry-pressing magnetic powder production, and particularly relates to a multi-stage crusher for dry-pressing magnetic powder production, which comprises a crushing box, supporting legs are mounted at the bottom end of the crushing box, a feeding hopper is arranged on one side of the upper end of the crushing box, a sealing mechanism is arranged on the feeding hopper, a discharging door is hinged to the crushing box, and a discharging opening is formed in the lower end of the crushing box. A smashing mechanism is arranged in the smashing box, two fixing plates are installed in the smashing box, through holes are formed in the two fixing plates, and a guide plate is installed on the bottom wall of an inner cavity of the smashing box. Through the arrangement of the crushing mechanism, magnetic powder can be subjected to two-layer crushing and screening, the quality of the magnetic powder is improved, and subsequent magnetic powder production is facilitated; and through the arrangement of the sealing mechanism, the feeding hopper can be sealed, so that the phenomenon that dust and other impurities enter the crushing box through the feeding hopper to affect the quality of the magnetic powder after long-time use can be avoided, the protection effect is improved, and discharging is facilitated through a guide plate.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-pressed magnetic powder production, in particular to a multi-stage crusher for dry-pressed magnetic powder production. Background Art

[0002] Injection-molded ferrites are magnets formed by mixing ferrite powder and resin through an injection molding process. Injection-molded ferrites can be magnetized in either axial single-pole or radial multi-pole configurations, or in both axial and radial composite configurations. Magnetic powder is a key ingredient in injection-molded ferrites. In the early stages of magnetic powder production, the raw material needs to be crushed into a smaller powder using a pulverizer to facilitate subsequent processing. Currently, existing pulverization devices typically only feature a single-layer pulverization structure, resulting in incomplete pulverization of the magnetic powder and hindering subsequent processing steps. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the present invention provides a multi-stage crusher for dry-pressing magnetic powder production, which solves the problems raised in the above-mentioned background technology.

[0005] (2) Technical solution

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A multi-stage pulverizer for producing dry-pressed magnetic powder includes a pulverizing box, a support leg mounted on the bottom end of the pulverizing box, a feed hopper mounted on one side of the upper end of the pulverizing box, a sealing mechanism mounted on the feed hopper, a discharge door hingedly connected to the pulverizing box, a pulverizing mechanism mounted inside the pulverizing box, two fixed plates mounted inside the pulverizing box, both of the fixed plates having through holes, and a guide plate mounted on the bottom wall of the inner cavity of the pulverizing box;

[0008] The crushing mechanism includes two brackets installed on both side walls of the inner cavity of the crushing box, each of the brackets is slidably connected to a slider, and each of the brackets is rotatably connected to a screw rod, the screw rod is threadedly connected to the slider, one end of the screw rod is installed with a driven sprocket, the bottom end of the crushing box is installed, the upper end of the base is installed with a dual-axis motor, the two output ends of the dual-axis motor are installed with a rotating shaft, the rotating shaft rotates in the base, and the opposite ends of the two rotating shafts are installed with a driving sprocket, and the driving sprocket and the driven sprocket on the same side are meshed with a chain, the bottom ends of the two sliders are installed with an electric telescopic rod, the telescopic ends of the two electric telescopic rods are installed with a connecting block, and the two connecting blocks are rotatably connected with a crushing roller.

[0009] Furthermore, the two screw rods are in opposite directions.

[0010] Furthermore, the sealing mechanism includes guide blocks and baffles symmetrically installed on both sides of the upper end of the feed hopper, guide grooves are provided on both sides of the bottom end of the baffle, a support plate is installed at one end of the feed hopper, a drive motor is installed on the support plate, a driving gear is installed at the output end of the drive motor, and a rack is provided at one end of the baffle.

[0011] Furthermore, the driving gear and the rack are meshed with each other.

[0012] Furthermore, the baffle slides on the guide block through a guide groove.

[0013] Furthermore, the guide block has an L-shaped structure.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the present invention provides a multi-stage crusher for dry-pressed magnetic powder production, which has the following beneficial effects:

[0016] The utility model can perform two-layer crushing and screening of magnetic powder by setting the crushing mechanism, thereby improving the quality of magnetic powder and facilitating subsequent magnetic powder production; and can seal the feed hopper by setting the sealing mechanism, thereby preventing dust and other impurities from entering the crushing box through the feed hopper after long-term use and affecting the quality of magnetic powder, thereby improving the protection effect and facilitating material discharge through the guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the internal structure of the crushing box of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the pulverizing mechanism of the utility model;

[0020] Figure 4 It is a structural diagram of the sealing mechanism of the utility model.

[0021] In the figure: 1. Crushing box; 2. Feed hopper; 3. Sealing mechanism; 31. Guide block; 32. Baffle; 33. Guide groove; 34. Support plate; 35. Driving motor; 36. Driving gear; 37. Rack; 4. Crushing mechanism; 40. Electric telescopic rod; 401. Connecting block; 402. Crushing roller; 41. Base; 42. Dual-axis motor; 43. Rotating shaft; 44. Driving sprocket; 45. Bracket; 46. Slider; 47. Screw; 48. Driven sprocket; 49. Chain; 5. Unloading door; 6. Support foot; 7. Fixing plate; 8. Through hole; 9. Guide plate. DETAILED DESCRIPTION

[0022] 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.

[0023] Example

[0024] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, an embodiment of the present invention proposes a multi-stage crusher for dry-pressed magnetic powder production, comprising a crushing box 1, a supporting foot 6 being installed at the bottom end of the crushing box 1, a feeding hopper 2 being provided on one side of the upper end of the crushing box 1, a sealing mechanism 3 being provided on the feeding hopper 2, a material discharge door 5 being hinged on the crushing box 1, a crushing mechanism 4 being provided inside the crushing box 1, two fixing plates 7 being installed inside the crushing box 1, through holes 8 being opened on both fixing plates 7, and a guide plate 9 being installed on the bottom wall of the inner cavity of the crushing box 1; through the setting of the crushing mechanism 4, the magnetic powder can be crushed and screened in two layers, thereby improving the quality of the magnetic powder and facilitating the subsequent production of magnetic powder; and through the setting of the sealing mechanism 3, the feeding hopper 2 can be sealed, thereby preventing dust and other impurities from entering the crushing box 1 through the feeding hopper 2 after long-term use and affecting the quality of the magnetic powder, thereby improving the protection effect and facilitating material discharge through the guide plate 9;

[0025] The crushing mechanism 4 includes two brackets 45 installed on the two side walls of the inner cavity of the crushing box 1, and sliders 46 are slidably connected to the two brackets 45. Screws 47 are rotatably connected in the two brackets 45. The screws 47 are threadedly connected to the sliders 46. One end of the two screws 47 is installed with a driven sprocket 48. The bottom end of the crushing box 1 is installed with a base 41, and a double-axis motor 42 is installed on the upper end of the base 41. The two output ends of the double-axis motor 42 are installed with a rotating shaft 43, and the rotating shaft 43 rotates in the base 41. The opposite ends of the two rotating shafts 43 are installed with a driving sprocket 44. The driving sprocket 44 and the driven sprocket 48 on the same side are meshed with a chain 49. The bottom ends of the two sliders 46 are installed with The electric telescopic rod 40, the telescopic ends of the two electric telescopic rods 40 are both equipped with connecting blocks 401, and the two connecting blocks 401 are both rotatably connected with crushing rollers 402; the dual-axis motor 42 drives the rotating shaft 43 to rotate, drives the driving sprocket 44 to rotate, drives the chain 49 to transmit, drives the driven sprocket 48 to rotate, drives the two lead screws 47 to rotate, drives the slider 46 to slide on the bracket 45, and drives the connecting block 401 downward through the electric telescopic rod 40, so that the crushing roller 402 and the magnetic powder dropped on the fixed plate 7 are crushed, and the crushing position is adjusted to realize the crushing of the magnetic powder. The diameters of the through holes 8 on the two fixed plates 7 are different, so the crushing effect can be further improved.

[0026] like Figure 3 As shown, in some embodiments, the two screws 47 are in opposite directions to facilitate crushing.

[0027] like Figure 4 As shown, in some embodiments, the sealing mechanism 3 includes a guide block 31 and a baffle 32 symmetrically installed on both sides of the upper end of the feed hopper 2, and a guide groove 33 is provided on both sides of the bottom end of the baffle 32. A support plate 34 is installed at one end of the feed hopper 2, and a drive motor 35 is installed on the support plate 34. A driving gear 36 is installed at the output end of the drive motor 35, and a rack 37 is provided at one end of the baffle 32; the driving motor 35 drives the driving gear 36 to rotate, and drives the baffle 32 to slide on the guide block 31 along the guide groove 33, thereby realizing the opening and closing of the baffle 32 for easy protection.

[0028] like Figure 4 As shown, in some embodiments, the driving gear 36 and the rack 37 are engaged with each other to facilitate opening and closing.

[0029] like Figure 4 As shown, in some embodiments, the baffle 32 slides on the guide block 31 through the guide groove 33 to facilitate guidance.

[0030] like Figure 2 As shown, in some embodiments, the guide block 31 is L-shaped; the structure is simple.

[0031] Finally, it should be noted that the above description is merely 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 will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A multi-stage pulverizer for dry-pressed magnetic powder production, comprising a pulverizing box (1), characterized in that: The bottom end of the crushing box (1) is provided with a supporting foot (6), a feeding hopper (2) is provided on one side of the upper end of the crushing box (1), a sealing mechanism (3) is provided on the feeding hopper (2), a discharge door (5) is hinged on the crushing box (1), a crushing mechanism (4) is provided in the crushing box (1), two fixing plates (7) are provided in the crushing box (1), both of the fixing plates (7) are provided with through holes (8), and a guide plate (9) is provided on the bottom wall of the inner cavity of the crushing box (1); The crushing mechanism (4) includes two brackets (45) installed on both side walls of the inner cavity of the crushing box (1), and the two brackets (45) are slidably connected to the slider (46), and the two brackets (45) are rotatably connected to the screw rod (47), the screw rod (47) is threadedly connected to the slider (46), and one end of the two screw rods (47) is installed with a driven sprocket (48), the bottom end of the crushing box (1) is installed with a base (41), and the upper end of the base (41) is installed with a double-axis motor (42), and the double-axis motor (42) is rotated. A rotating shaft (43) is installed at both output ends, and the rotating shaft (43) rotates in the base (41). A driving sprocket (44) is installed at the opposite ends of the two rotating shafts (43). A chain (49) is engaged between the driving sprocket (44) and the driven sprocket (48) on the same side. An electric telescopic rod (40) is installed at the bottom end of the two sliders (46). A connecting block (401) is installed at the telescopic end of the two electric telescopic rods (40). A crushing roller (402) is rotatably connected in the two connecting blocks (401).

2. The multi-stage pulverizer for dry-pressed magnetic powder production according to claim 1, characterized in that: The two screw rods (47) are in opposite directions.

3. The multi-stage pulverizer for dry-pressed magnetic powder production according to claim 1, characterized in that: The sealing mechanism (3) comprises a guide block (31) and a baffle (32) symmetrically mounted on both sides of the upper end of the feed hopper (2), a guide groove (33) being provided on both sides of the bottom end of the baffle (32), a support plate (34) being mounted on one end of the feed hopper (2), a drive motor (35) being mounted on the support plate (34), a driving gear (36) being mounted on the output end of the drive motor (35), and a rack (37) being provided on one end of the baffle (32).

4. The multi-stage pulverizer for dry-pressed magnetic powder production according to claim 3, characterized in that: The driving gear (36) and the rack (37) are meshed with each other.

5. The multi-stage pulverizer for dry-pressed magnetic powder production according to claim 3, characterized in that: The baffle (32) slides on the guide block (31) through the guide groove (33).

6. The multi-stage pulverizer for dry-pressed magnetic powder production according to claim 3, characterized in that: The guide block (31) has an L-shaped structure.

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