Refining and grinding equipment for soft magnetic ferrite powder

Abstract

The utility model discloses soft magnetic ferrite powder refining and grinding equipment which comprises a grinding barrel and a hydraulic push rod, the hydraulic push rod is fixed on the ground, a lifting machine head is fixed at the top end of the hydraulic push rod, a grinding spindle is rotatably mounted at one end of the lifting machine head, and a grinding hammer is fixed at the bottom end of the grinding spindle. Supporting frames are fixed to the two sides of the lifting machine head correspondingly, lifting rings are fixed to the bottom ends of the two supporting frames, a plurality of positioning pieces which are symmetrical in pairs are fixed to the outer side of the top end of the grinding barrel, positioning shaft pins are rotationally installed between the positioning pieces which are symmetrical in pairs, and rotary dustproof pieces are fixed to the outer sides of the positioning shaft pins. The outer sides of the two ends of the positioning shaft pin are sleeved with torsion springs. The rotary dustproof pieces are mutually spliced to form the circular ring to seal the gap between the grinding barrel and the grinding hammer, soft magnetic ferrite powder cannot splash outwards in the grinding process of soft magnetic ferrite, health of workers operating equipment is guaranteed, and cleanliness of an equipment workshop is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of soft ferrite powder processing equipment, in particular to soft ferrite powder fine grinding equipment. Background Art

[0002] Grinding is the finishing process of the machined surface by using abrasive particles coated or pressed on the grinding tool through the relative movement of the grinding tool and the workpiece under a certain pressure. Grinding can be used to process various metal and non-metal materials. The processed surface shapes include planes, internal and external cylindrical surfaces and conical surfaces, convex and concave spherical surfaces, threads, tooth surfaces and other surfaces.

[0003] Soft ferrite is a ferrimagnetic oxide with Fe2O3 as the main component. Soft ferrite is a raw material for preparing magnets. When preparing magnets through soft ferrite, it is necessary to grind the soft ferrite through grinding equipment to make the soft ferrite into powder, and then mix it with other raw materials of the magnet and burn it.

[0004] However, when the grinding equipment is grinding soft ferrite, the equipment is in an open state. During the grinding process, soft ferrite powder will splash from the equipment and be absorbed by the body of the person operating the equipment, posing a safety hazard to the health of the operator, and the powder splashing will pollute the equipment workshop; therefore, it does not meet the existing needs. In this regard, we have proposed a soft ferrite powder fine grinding equipment. Utility Model Content

[0005] The purpose of the utility model is to provide a soft ferrite powder refining grinding device to solve the problems that when the grinding device proposed in the above background technology is used to grind soft ferrite, the device is in an open state, and soft ferrite powder will splash from the device during the grinding process and be absorbed by the body of the person operating the device, posing a safety hazard to the health of the operator, and the powder splashing will pollute the equipment workshop.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a soft ferrite powder refining grinding equipment, including a grinding barrel and a hydraulic push rod, the hydraulic push rod is fixed on the ground and a lifting head is fixed on the top, one end of the lifting head is rotatably installed with a grinding spindle, the bottom end of the grinding spindle is fixed with a grinding hammer, support frames are fixed on both sides of the lifting head, and lifting rings are fixed at the bottom ends of the two support frames, a plurality of symmetrical positioning plates are fixed to the outer side of the top end of the grinding barrel, and positioning shaft pins are rotatably installed between the symmetrical positioning plates, a rotating dustproof plate is fixed to the outer side of the positioning shaft pin, and torsion springs are sleeved on the outer sides of both ends of the positioning shaft pin, and the torsion spring is located between the rotating dustproof plate and the positioning plate.

[0007] Preferably, the rotating dust-proof sheets are distributed in a circular array around the axis of the grinding barrel, the rotating dust-proof sheets are fan-shaped structures, and a plurality of rotating dust-proof sheets are spliced ​​together to form a ring.

[0008] Preferably, the bottom surface of the lifting ring is provided with a plurality of slots distributed in a circular array around its axis, the slots are located directly above the rotating dustproof sheet, and a rotating plate is rotatably mounted inside the slots.

[0009] Preferably, a connecting shaft pin is fixedly passed through the top end of the rotating plate, and both ends of the connecting shaft pin are rotatably inserted in the lifting ring and a return torsion spring is sleeved on the outer side of the end.

[0010] Preferably, when the rotating plate is in the initial position, the angle between the rotating plate and the ground is seventy-five degrees.

[0011] Preferably, a slide groove is provided inside the lifting ring, an electromagnet is fixed at one end of the slide groove, and an adsorption magnet is slidably installed inside the slide groove.

[0012] Preferably, the electromagnet is connected to the adsorption magnet by magnetic adsorption, and a connecting rope is fixed between the adsorption magnet and the rotating plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the process of the grinding hammer descending into the grinding barrel, the electromagnet is energized to attract the magnetic line of the adsorption magnet, so that the adsorption magnet pulls the bottom end of the rotating plate through the connecting rope, and the rotating rotating plate is used to rotate the top of the rotating dustproof sheet to the bottom of the lifting ring, and the lifting ring continues to press the rotating dustproof sheet down until the grinding hammer enters the grinding barrel. At this time, the rotating dustproof sheets are spliced ​​together to form a ring to close the gap between the grinding barrel and the grinding hammer. In the process of grinding the soft ferrite, the soft ferrite powder will not splash outward, ensuring the health of the staff operating the equipment and the cleanliness of the equipment workshop;

[0015] 2. After the soft ferrite powder is ground, the grinding hammer moves upward driven by the hydraulic push rod. At this time, the torsion spring will elastically recover and drive the rotating dustproof sheet to rotate upward, ensuring that the rotating dustproof sheet can be automatically opened without affecting the staff's collection of the ground soft ferrite powder inside the grinding barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 for Figure 1 A magnified view of the structure at center A;

[0018] Figure 3 This is a partial structural cross-sectional view of the rotary dust-proof sheet of the utility model;

[0019] Figure 4 It is a cross-sectional schematic diagram of the lifting ring of the utility model;

[0020] Figure 5 It is a schematic diagram of the initial rotation state of the rotating plate of the utility model.

[0021] In the figure: 1. Grinding barrel; 2. Grinding hammer; 3. Grinding spindle; 4. Lifting head; 5. Hydraulic push rod; 6. Support frame; 7. Lifting ring; 8. Rotating dustproof sheet; 9. Positioning sheet; 10. Positioning shaft pin; 11. Rotating plate; 12. Torsion spring; 13. Connecting shaft pin; 14. Electromagnet; 15. Adsorption magnet; 16. Connecting rope. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] like Figure 1 As shown, a soft ferrite powder refining grinding equipment includes a grinding barrel 1 and a hydraulic push rod 5. The hydraulic push rod 5 is fixed on the ground and a lifting head 4 is fixed on the top. A grinding spindle 3 is rotatably installed on one end of the lifting head 4, and a grinding hammer 2 is fixed on the bottom end of the grinding spindle 3.

[0024] like Figures 1 to 3 As shown, support frames 6 are fixed on both sides of the lifting head 4, and lifting rings 7 are fixed at the bottom ends of the two support frames 6. A plurality of symmetrical positioning plates 9 are fixed to the outer side of the top end of the grinding barrel 1, and a positioning shaft pin 10 is rotatably installed between the symmetrical positioning plates 9. A rotating dustproof plate 8 is fixed to the outer side of the positioning shaft pin 10, and a torsion spring 12 is sleeved on the outer side of both ends of the positioning shaft pin 10. The torsion spring 12 is located between the rotating dustproof plate 8 and the positioning plate 9. The rotating dustproof plate 8 rotates around the axis of the positioning shaft pin 10. After the grinding hammer 2 enters the grinding barrel 1, the rotating dustproof plate 8 is used to close the gap between the grinding barrel 1 and the grinding hammer 2 from above the grinding barrel 1 and the grinding hammer 2 to prevent powder from splashing outward during the grinding process.

[0025] The rotating dust-proof sheets 8 are distributed in a circular array around the axis of the grinding barrel 1. The rotating dust-proof sheets 8 are fan-shaped structures and multiple rotating dust-proof sheets 8 are spliced ​​together to form a ring, ensuring that the sides of adjacent rotating dust-proof sheets 8 fit seamlessly after rotation.

[0026] like Figure 4 and Figure 5As shown, the bottom surface of the lifting ring 7 is provided with a plurality of slots distributed in a circular array around its axis, the slots are located directly above the rotating dustproof sheet 8, and a rotating plate 11 is rotatably installed on the inner side of the slots, and a connecting shaft pin 13 is fixedly passed through the top end of the rotating plate 11, and both ends of the connecting shaft pin 13 are rotatably inserted into the lifting ring 7 and a reset torsion spring is sleeved on the outer side of the end. When the rotating plate 11 is in the initial position, the angle between the rotating plate 11 and the ground is seventy-five degrees, ensuring that when the lifting ring 7 drives the rotating plate 11 to move downward, the bottom end of the rotating plate 11 is located on the outer side of the rotating dustproof sheet 8, and when the rotating plate 11 rotates, the rotating plate 11 pushes the rotating dustproof sheet 8 toward the inner side of the grinding barrel 1, so that the rotating dustproof sheet 8 rotates around the positioning shaft pin 10, and the top end of the rotating dustproof sheet 8 rotates to the bottom of the lifting ring 7.

[0027] A slide groove is provided inside the lifting ring 7, an electromagnet 14 is fixed at one end of the slide groove, an adsorption magnet 15 is slidably installed on the inner side of the slide groove, the electromagnet 14 and the adsorption magnet 15 are magnetically adsorbed and connected, a connecting rope 16 is fixed between the adsorption magnet 15 and the rotating plate 11, and the electromagnet 14 magnetically attracts the adsorption magnet 15 after being energized, so that the adsorption magnet 15 slides and pulls the bottom end of the rotating plate 11 through the connecting rope 16, so that the rotating plate 11 rotates smoothly around the axis of the connecting shaft pin 13.

[0028] Working principle: First, place the soft magnetic ferrite to be processed inside the grinding barrel 1 and turn on the power of the equipment. After the power is turned on, the lifting head 4 of the hydraulic push rod 5, the grinding spindle 3 and the grinding hammer 2 descend until the grinding hammer 2 enters the grinding barrel 1 and the top of the grinding hammer 2 is kept flush with the top of the grinding barrel 1. During the descent of the grinding hammer 2, the lifting head 4 drives the support frame 6 and the lifting ring 7 to move downward at the same time. At this time, the rotating plate 11 moves downward at the same time as the lifting ring 7. When the top of the dustproof sheet 8 rotates at the bottom of the bottom of the rotating plate 11, the electromagnet 14 is powered on and magnetically attracts the adsorption magnet 15. The adsorption magnet 15 slides in the lifting ring 7 and pulls the bottom end of the rotating plate 11 through the connecting rope 16. The rotating plate 11 revolves around the connecting shaft pin 1 3 rotates, and during the rotation of the rotating plate 11, the top of the rotating dust-proof sheet 8 is in contact with the top of the rotating dust-proof sheet 8 and the rotating dust-proof sheet 8 is rotated toward the grinding hammer 2. At this time, the top of the rotating dust-proof sheet 8 is located below the lifting ring 7. When the rotating plate 11 rotates and enters the bottom of the lifting ring 7, the lifting ring 7 will contact the top of the rotating dust-proof sheet 8 and continue to press down the rotating dust-proof sheet 8, so that the rotating dust-proof sheet 8 continues to rotate around the axis of the grinding hammer 2 until the grinding hammer 2 enters the grinding barrel 1. At this time, the rotating dust-proof sheets 8 are spliced ​​together to form a ring to seal the gap between the grinding barrel 1 and the grinding hammer 2. During the grinding of the soft ferrite, the soft ferrite powder will not splash outward, thereby ensuring the health of the staff operating the equipment and the cleanliness of the equipment workshop.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A soft ferrite powder fine grinding device, comprising a grinding barrel (1) and a hydraulic push rod (5), wherein the hydraulic push rod (5) is fixed on the ground and a lifting head (4) is fixed on the top, a grinding spindle (3) is rotatably mounted on one end of the lifting head (4), and a grinding hammer (2) is fixed on the bottom end of the grinding spindle (3), characterized in that: Support frames (6) are fixed on both sides of the lifting head (4), and lifting rings (7) are fixed at the bottom ends of the two support frames (6). A plurality of symmetrical positioning plates (9) are fixed on the outer side of the top end of the grinding barrel (1), and a positioning shaft pin (10) is rotatably installed between the symmetrical positioning plates (9). A rotating dustproof plate (8) is fixed on the outer side of the positioning shaft pin (10), and torsion springs (12) are sleeved on the outer sides of both ends of the positioning shaft pin (10), and the torsion spring (12) is located between the rotating dustproof plate (8) and the positioning plate (9).

2. The soft ferrite powder fine grinding equipment according to claim 1, characterized in that: The rotating dust-proof sheets (8) are distributed in a circular array around the axis of the grinding barrel (1); the rotating dust-proof sheets (8) are of a fan-shaped structure, and a plurality of rotating dust-proof sheets (8) are spliced ​​together to form a circular ring.

3. The soft ferrite powder fine grinding equipment according to claim 1, characterized in that: The bottom surface of the lifting ring (7) is provided with a plurality of slots distributed in a circular array around its axis, the slots being located directly above the rotating dustproof sheet (8), and a rotating plate (11) is rotatably mounted inside the slots.

4. The soft ferrite powder fine grinding equipment according to claim 3, characterized in that: A connecting shaft pin (13) is fixedly passed through the top end of the rotating plate (11), and both ends of the connecting shaft pin (13) are rotatably inserted into the inside of the lifting ring (7) and a return torsion spring is sleeved on the outer side of the end.

5. The soft ferrite powder fine grinding equipment according to claim 4, characterized in that: When the rotating plate (11) is located at the initial position, the angle between the rotating plate (11) and the ground is seventy-five degrees.

6. The soft ferrite powder fine grinding equipment according to claim 5, characterized in that: The lifting ring (7) is provided with a slide groove inside, an electromagnet (14) is fixed at one end of the slide groove, and an adsorption magnet (15) is slidably mounted on the inner side of the slide groove.

7. The soft ferrite powder fine grinding equipment according to claim 6, characterized in that: The electromagnet (14) is connected to the adsorption magnet (15) by magnetic adsorption, and a connection rope (16) is fixed between the adsorption magnet (15) and the rotating plate (11).

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