CN216322492U

CN216322492U - Multistage rubbing crusher is used in production of dry pressing magnetic

Info

Publication number: CN216322492U
Application number: CN202122998233.3U
Authority: CN
Inventors: 王玉平; 楼旺永; 马晓伟; 连江滨
Original assignee: Zhejiang Ante Magnetic Material Co ltd
Current assignee: Zhejiang Ante Magnetic Material Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-04-19
Anticipated expiration: 2031-11-30

Abstract

The utility model provides a multi-stage crusher for producing dry-pressed magnetic powder, belongs to the technical field of magnetic powder production, and solves the problem that unqualified raw materials obtained by rough crushing enter a grinding roller in the operation process of the conventional multi-stage crusher to aggravate the abrasion of the grinding roller. This multi-stage reduction machine is used in production of dry pressing magnetic powder, including base, box, feedstock channel, intercommunication way, long passageway, feed back pipe, crushing roller body, grinding roller body and upper and lower moving mechanism, the inside below of box is provided with the fly leaf, and the surface of fly leaf is inlayed and is equipped with the screen cloth. The magnetic powder grinding machine can screen the magnetic powder raw materials after coarse grinding, avoids unqualified raw materials with larger particle size or not completely ground from entering a grinding roller, effectively reduces the abrasion of the grinding roller, and ensures the processing precision of the grinding roller.

Description

Multistage rubbing crusher is used in production of dry pressing magnetic

Technical Field

The utility model belongs to the technical field of magnetic powder production, relates to a pulverizer, and particularly relates to a multistage pulverizer for dry pressing magnetic powder production.

Background

The injection-molded ferrite is a magnet formed by mixing ferrite magnetic powder and resin and then performing an injection molding process. The injection molding ferrite can be axially magnetized in a single pole, can be radially magnetized in multiple stages, and can be axially and radially magnetized in a composite mode. The magnetic powder is one of important materials of injection molding ferrite, and in the early stage of production of the magnetic powder material, raw materials need to be crushed into powdery raw materials with smaller particle sizes through a crusher, so that the subsequent processes are convenient to carry out.

Magnetic powder raw materials are in the in-process of processing, multi-stage pulverization is the processing mode commonly used, the raw materials at first carry out coarse grinding through crushing roller, smash into the granule that the particle diameter is bigger slightly, later the more meticulous grinding roller of rethread smashes into the powder granule that the particle diameter is littleer, but some raw materials are after crushing roller, still keep great particle diameter, or not smash completely, these unqualified coarse grinding raw materials are when grinding the roller, can bring very big resistance for grinding the roller, thereby the wearing and tearing of aggravation grinding roller, influence the machining precision of grinding the roller, possibly lead to grinding the roller to damage even.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art, and provides a multi-stage crusher for producing dry-pressed magnetic powder, which can screen the coarsely crushed magnetic powder raw materials, prevent unqualified raw materials from entering a grinding roller, and effectively reduce the abrasion of the grinding roller.

The purpose of the utility model can be realized by the following technical scheme:

a multi-stage pulverizer for producing dry-pressed magnetic powder comprises a base, a box body, a feeding channel, a communicating channel, a long channel, a material return pipe, a pulverizing roller body, a grinding roller body and an up-and-down moving mechanism, a movable plate is arranged below the interior of the box body, a screen is embedded on the surface of the movable plate, a blanking channel is fixedly arranged at the bottom of the movable plate, an inner shell is bolted at the left side in the box body and below the movable plate, a linear reciprocating motor is fixedly arranged in the inner shell, an impact block is fixedly arranged on an output shaft of the linear reciprocating motor, a driving roller and a driven roller are respectively and rotatably connected inside the long channel, the surfaces of the driving roller and the driven roller are provided with conveyor belts, the surfaces of the conveyor belts are fixedly provided with scraping plates, and a driving motor is bolted to the back of the long channel, and an output shaft of the driving motor is fixed with the driving roller.

The working principle of the utility model is as follows: magnetic raw materials carries out coarse crushing through crushing roller body, smash the raw materials into slightly bigger granule, open the bottom that sharp reciprocating type motor drove the striking piece and come to the fly leaf and strike, it makes fly leaf and screen cloth rock from top to bottom, screen coarse crushing's raw materials, block large granule or not smash complete raw materials, and coarse crushing qualified raw materials can get into the grinding roller through the unloading passageway and grind, coarse crushing unqualified raw materials get into the inside of long passageway through the intercommunication way, open driving motor and drive the drive roll, conveyer belt and driven voller begin to move, it drives scraper concerted movement, scraper promotes unqualified raw materials and rises, reach the feed back pipe until the raw materials, and slide to the inside of feedstock channel, get into the box and carry out coarse crushing once more.

The upper and lower moving mechanism comprises a telescopic rod, a moving block and a sliding rail, the telescopic rod is bolted to the bottom of the inner cavity of the communicating channel, the top end of the telescopic rod is bolted to the bottom of the blanking channel, the moving block is bolted to one side of the movable plate, the sliding rail is bolted to the inner wall of the box body, and the moving block is slidably connected with the inner wall of the sliding rail.

The structure for carry on spacingly to fly leaf and unloading passageway more than adopting for fly leaf and unloading passageway can only move in vertical direction.

The top of the movable plate is bolted with a baffle, and the length of the baffle is the same as that of the movable plate.

Adopt above structure for block unqualified raw materials, prevent that these raw materials from dropping from both sides around the fly leaf.

The inside of box and the both sides that are located crushing roller body top all are bolted to have first slope, the inside of box and the both sides that are located grinding roller body top all are bolted to have the second slope.

With the structure, the raw materials can be intensively fed into the crushing roller or the grinding roller by matching use of the structure, so that the raw materials are prevented from falling into the outer side.

One side of the first slope is in bolted connection with a supporting rod, the other end of the supporting rod is in bolted connection with the inner wall of the box body, one side of the second slope is in bolted connection with a fixing rod, and the other end of the fixing rod is in bolted connection with the inner wall of the box body.

Structure more than adopting, bracing piece and dead lever can carry out auxiliary stay to first slope and second slope respectively, increase their stability.

The inside of long passageway still rotates and is connected with the auxiliary roller, and the surface roll connection of auxiliary roller and conveyer belt inboard.

By adopting the structure, the stability of the conveyor belt in the operation process is improved.

Compared with the prior art, the multi-stage pulverizer for producing the dry-pressed magnetic powder has the following advantages:

1. the utility model can screen the coarsely crushed magnetic powder raw material, avoids unqualified raw materials with larger particle size or not completely crushed from entering the grinding roller, effectively reduces the abrasion of the grinding roller, thereby ensuring the processing precision of the grinding roller, and simultaneously, the crusher can also lift the screened unqualified raw materials, thereby enabling the unqualified raw materials to be coarsely crushed again by the grinding roller until the raw materials are completely crushed, and solving the problem that the coarsely crushed unqualified raw materials enter the grinding roller to aggravate the abrasion of the grinding roller in the operation process of the existing multistage crusher.

2. Through the setting of telescopic link, movable block and slide rail, the movable block can slide from top to bottom on the surface of slide rail, and the telescopic link makes unloading passageway and fly leaf can the up-and-down motion, mutually supports between them for the screen cloth can rock from top to bottom, thereby screens the raw materials.

3. Through the setting of first slope and second slope, first slope is used for making the raw materials concentrate to fall to between the both sides crushing roller, prevents that the raw materials from dropping to the outside of crushing roller, and the second slope is used for making the raw materials concentrate to fall to between the both sides grinding roller, prevents that the raw materials from dropping to the outside of grinding roller.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the present invention.

Fig. 3 is a schematic cross-sectional structure of the present invention.

Fig. 4 is a schematic cross-sectional structure of the present invention.

Fig. 5 is a schematic view of the enlarged structure of the part a in fig. 3 according to the present invention.

Fig. 6 is a partial perspective view of the present invention.

Fig. 7 is a schematic cross-sectional view of an inner shell of the present invention.

In the figure, 1, a base; 2. a box body; 3. a feed channel; 4. a communicating channel; 5. a long channel; 6. a material return pipe; 7. a crushing roller body; 8. a grinding roll body; 9. a movable plate; 10. screening a screen; 11. a blanking channel; 12. an inner shell; 13. a linear reciprocating motor; 14. an impact block; 15. an up-down moving mechanism; 151. a telescopic rod; 152. a movable block; 153. a slide rail; 16. a drive roll; 17. a driven roller; 18. a conveyor belt; 19. a scraping plate; 20. an auxiliary roller; 21. a baffle plate; 22. a first slope; 23. a support bar; 24. a second slope; 25. fixing the rod; 26. the motor is driven.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-7, the multi-stage pulverizer for producing dry magnetic powder comprises a base 1, a box 2, a feeding channel 3, a communicating channel 4, a long channel 5, a material return pipe 6, a pulverizing roller body 7, a grinding roller body 8 and an up-and-down moving mechanism 15, wherein the feeding channel 3 is communicated with the top of the box 2, the communicating channel 4 is communicated with the right side of the box 2, the other side of the communicating channel 4 is communicated with the long channel 5, two ends of the material return pipe 6 are respectively communicated with the feeding channel 3 and the long channel 5, a moving plate 9 is arranged below the inside of the box 2, a screen 10 is embedded in the surface of the moving plate 9, a blanking channel 11 is fixedly arranged at the bottom of the moving plate 9, an inner shell 12 is bolted to the left side of the inside of the box 2 and below the moving plate 9, a linear reciprocating motor 13 is fixedly arranged inside the inner shell 12, an output shaft of the linear reciprocating motor 13 penetrates through the inner shell 12 and is connected with the penetrating part in a sliding manner, an impact block 14 is fixedly arranged on an output shaft of the linear reciprocating motor 13, the impact block 14 is made of rubber and prevents the movable plate 9 from being damaged by impact, a driving roller 16 and a driven roller 17 are respectively and rotatably connected inside the long channel 5, a conveying belt 18 is arranged on the surfaces of the driving roller 16 and the driven roller 17, a scraping plate 19 is fixedly arranged on the surface of the conveying belt 18, a driving motor 26 is bolted on the back surface of the long channel 5, an output shaft of the driving motor 26 is fixed with the driving roller 16, the pulverizer can screen the coarsely pulverized magnetic powder raw materials, avoid unqualified raw materials with larger particle size or incompletely pulverized raw materials from entering the grinding roller, effectively reduce the abrasion of the grinding roller, ensure the processing precision of the grinding roller, and simultaneously can also lift the screened unqualified raw materials, so that the unqualified raw materials can be coarsely pulverized again by the grinding roller until the unqualified raw materials are completely pulverized, the problem of present multi-stage pulverizer in the in-process of operation, coarse crushing unqualified raw materials get into the grinding roller, have aggravated the grinding roller wearing and tearing is solved.

From top to bottom movable mechanism 15 includes telescopic link 151, movable block 152 and slide rail 153, telescopic link 151 bolt is in the bottom of intercommunication way 4 inner chamber, the top of telescopic link 151 and the end bolt of unloading passageway 11 connect, movable block 152 bolt is in one side of fly leaf 9, slide rail 153 bolt is at the inner wall of box 2, and movable block 152 and slide rail 153's inner wall sliding connection, in this embodiment, through telescopic link 151, movable block 152 and slide rail 153's setting, movable block 152 can slide from top to bottom at the surface of slide rail 153, and telescopic link 151 makes unloading passageway 11 and fly leaf 9 can the up-and-down motion, mutually support between them, make screen cloth 10 can rock from top to bottom, thereby filter the raw materials.

The top of the movable plate 9 is bolted with a baffle 21, the length of the baffle 21 is the same as that of the movable plate 9, and the height of the baffle 21 is 3-10cm, in this embodiment, the baffle 21 is used for blocking the raw material and preventing the raw material from falling from the front side and the rear side of the movable plate 9 in the shaking process of the screen 10.

The first slopes 22 are bolted to the two sides of the inside of the box body 2 above the grinding roller body 7, the second slopes 24 are bolted to the two sides of the inside of the box body 2 above the grinding roller body 8, in the embodiment, through the arrangement of the first slopes 22 and the second slopes 24, the first slopes 22 are used for enabling raw materials to fall down to the positions between the grinding rollers on the two sides in a concentrated manner, the raw materials are prevented from falling to the outer sides of the grinding rollers, and the second slopes 24 are used for enabling the raw materials to fall down to the positions between the grinding rollers on the two sides in a concentrated manner, and the raw materials are prevented from falling to the outer sides of the grinding rollers.

One side of the first slope 22 is bolted with a support rod 23, the other end of the support rod 23 is bolted with the inner wall of the box body 2, one side of the second slope 24 is bolted with a fixing rod 25, the other end of the fixing rod 25 is bolted with the inner wall of the box body 2, the inclination angle of the first slope 22 is 20-35 degrees, the inclination angle of the second slope 24 is 30-45 degrees, in the embodiment, through the arrangement of the support rod 23 and the fixing rod 25, the support rod 23 is used for carrying out auxiliary support on the first slope 22, the stability of the first slope 22 is increased, and the fixing rod 25 is used for carrying out auxiliary support on the second slope 24, and the stability of the second slope 24 is increased.

The inside of the long channel 5 is also rotatably connected with an auxiliary roller 20, and the auxiliary roller 20 is in rolling connection with the surface of the inner side of the conveyor belt 18, and in the embodiment, through the arrangement of the auxiliary roller 20, the auxiliary roller can be supported on the inner side of the conveyor belt 18, and the stability of the conveyor belt 18 in the movement process is increased.

The working principle of the utility model is as follows: during operation, magnetic powder raw materials enter the inside of the box body 2 from the feeding channel 3, the magnetic powder raw materials are coarsely crushed through the crushing roller body 7, the raw materials are crushed into slightly larger particles, meanwhile, the linear reciprocating motor 13 is started, the output shaft of the linear reciprocating motor stretches back and forth to reciprocate, so that the impact block 14 is driven to knock the bottom of the movable plate 9, the movable plate 9 can rock up and down, the screen 10 is driven to rock up and down, the coarsely crushed raw materials are screened by the screen 10 in the rocking process, larger particles or incompletely crushed raw materials move on the surface of the screen 10, the coarsely crushed qualified raw materials can enter the grinding roller through the blanking channel 11 to be ground, particles with smaller particle size are finely crushed, the coarsely crushed unqualified raw materials enter the inside of the long channel 5 through the communicating channel 4, the driving motor 26 is started, and drives the driving roller 16 to rotate, then the conveyor belt 18 and the driven roller 17 start to move, the scraper 19 is driven to move together, the scraper 19 can push unqualified raw materials in the long channel 5 to rise in the moving process until the raw materials reach the material return pipe 6, and under the action of gravity, the unqualified raw materials subjected to coarse grinding slide to the inside of the feeding channel 3 in the material return pipe 6 and enter the box body 2 for coarse grinding again.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A multi-stage pulverizer for producing dry-pressed magnetic powder comprises a base (1), a box body (2), a feeding channel (3), a communicating channel (4), a long channel (5), a material return pipe (6), a pulverizing roller body (7), a grinding roller body (8) and an upper and lower moving mechanism (15), and is characterized in that a movable plate (9) is arranged below the interior of the box body (2), a screen (10) is embedded on the surface of the movable plate (9), a blanking channel (11) is fixedly arranged at the bottom of the movable plate (9), an inner shell (12) is bolted on the left side of the interior of the box body (2) and below the movable plate (9), a linear reciprocating motor (13) is fixedly arranged inside the inner shell (12), an impact block (14) is fixedly arranged on an output shaft of the linear reciprocating motor (13), and a driving roller (16) and a driven roller (17) are respectively and rotatably connected inside the long channel (5), the surface of the driving roller (16) and the surface of the driven roller (17) are provided with conveyor belts (18), the surface of each conveyor belt (18) is fixedly provided with a scraper plate (19), the back surface of the long channel (5) is connected with a driving motor (26) in a bolted mode, and the output shaft of each driving motor (26) is fixed with the driving roller (16).

2. The multi-stage pulverizer for producing dry-pressed magnetic powder according to claim 1, wherein the up-down moving mechanism (15) comprises an expansion link (151), a moving block (152) and a slide rail (153), the expansion link (151) is bolted at the bottom of the inner cavity of the communicating channel (4), the top end of the expansion link (151) is bolted with the bottom of the blanking channel (11), the moving block (152) is bolted at one side of the moving plate (9), the slide rail (153) is bolted at the inner wall of the box body (2), and the moving block (152) is slidably connected with the inner wall of the slide rail (153).

3. The multi-stage pulverizer for producing dry-pressed magnetic powder according to claim 1, wherein a baffle (21) is bolted to the top of the movable plate (9), and the length of the baffle (21) is the same as that of the movable plate (9).

4. The multi-stage pulverizer for producing dry-pressed magnetic powder according to claim 1, wherein a first slope (22) is bolted to both sides of the inside of the box body (2) above the pulverizing roller body (7), and a second slope (24) is bolted to both sides of the inside of the box body (2) above the grinding roller body (8).

5. The multi-stage pulverizer for producing dry-pressed magnetic powder according to claim 4, wherein one side of the first slope (22) is bolted with a support rod (23), the other end of the support rod (23) is bolted with the inner wall of the box body (2), one side of the second slope (24) is bolted with a fixing rod (25), and the other end of the fixing rod (25) is bolted with the inner wall of the box body (2).

6. The multi-stage pulverizer for producing dry-pressed magnetic powder according to claim 1, wherein an auxiliary roller (20) is further rotatably connected to the inside of the long passage (5), and the auxiliary roller (20) is in rolling contact with the surface of the inside of the conveyor belt (18).