Stirring, pressurizing and feeding device for ferrite powder with low water content

Abstract

The utility model discloses a stirring and pressurizing feeding device for low-water-content ferrite powder, relates to the technical field of magnet production, and can solve the problem that the low-water-content ferrite powder is difficult to feed to a next-stage material pumping device at present. The stirring and pressurizing feeding device for the low-water-content ferrite powder comprises a shell, a combined type stirring and pressurizing structure arranged in the shell and a driving structure used for driving the combined type stirring and pressurizing structure to rotate, the combined type stirring and pressurizing structure comprises a rotating shaft vertically arranged in the shell, and the rotating shaft is arranged in the shell. The first composite stirring blade and the auger blade are arranged on the rotating shaft, and the first composite stirring blade is located above the auger blade; the output end of the driving structure is connected with the end of the rotating shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of magnet production, in particular to a stirring and pressurizing feeding device for ferrite powder with low water content. Background Art

[0002] During the magnet production process, ferrite powder needs to be fed into the die cavity of the die casting mold. The feeding path of ferrite powder is: stirring and equalizing device, pumping device, and die casting mold. The moisture content of ferrite powder in traditional magnet production is usually between 32% and 38%, which is relatively high. However, ferrite powder with high moisture content has a large amount of water displacement during the die casting process. At the same time, ferrite powder with high moisture content will also affect the density of the product after die casting, affecting the product quality.

[0003] In order to improve the die-casting efficiency and product quality, low-water content ferrite powder is used, but low-water content ferrite powder has the problem of insufficient water lubricity. At present, conventional stirring and grading devices cannot provide power for the feeding of low-water content ferrite powder, and it is difficult to feed low-water content ferrite powder to the pumping device on the feeding path, resulting in the problem of difficulty in feeding low-water content ferrite powder.

[0004] Based on the above background, the inventors have designed a stirring and pressurizing feeding device for low-water-content ferrite powder to solve the above problems. Utility Model Content

[0005] The purpose of the present application is to provide a stirring and pressurizing feeding device for low-moisture-content ferrite powder, which is used to solve the problem of difficulty in feeding low-moisture-content ferrite powder to a lower-level pumping device during the feeding process.

[0006] In order to solve the above technical problems, the utility model adopts the following solutions:

[0007] The present application provides a stirring and pressurizing feeding device for low-water-content ferrite powder, comprising a shell, a composite stirring and pressurizing structure arranged in the shell, and a driving structure for driving the composite stirring and pressurizing structure to rotate, wherein:

[0008] The composite stirring and pressurizing structure comprises a rotating shaft vertically arranged in the shell, and a first composite stirring blade and an auger blade arranged on the rotating shaft, wherein the first composite stirring blade is located above the auger blade;

[0009] The output end of the driving structure is connected to the end of the rotating shaft.

[0010] Optionally, the shell includes a stirring section and a sizing and pressurizing section;

[0011] The rotating shaft is arranged to penetrate the stirring section and the sizing and pressurizing section, and the first composite stirring blade and the auger blade are respectively located in the stirring section and the sizing and pressurizing section.

[0012] Optionally, the first composite stirring blade is located in the stirring section, and the first composite stirring blade includes a side wall scraping blade arranged parallel to the inner side wall of the stirring section, a material uniform stirring blade and a first pressurizing blade, wherein:

[0013] One end of the material mixing blade is fixed on the rotating shaft, and the other end is fixedly connected to the top end of the side wall scraping blade;

[0014] One end of the first booster blade is fixed on the rotating shaft, and the other end is fixedly connected to the bottom end of the side wall scraping blade.

[0015] Optionally, the auger blade is a spiral blade, and the first booster blade is a downward pressure blade.

[0016] Optionally, the shell further comprises a reduced diameter pressurizing section located between the stirring section and the fixed diameter pressurizing section, and the reduced diameter pressurizing section is in a cone shape;

[0017] The composite stirring and pressurizing structure also includes a second composite stirring blade located in the reduced diameter pressurizing section, and the second composite stirring blade is fixedly connected to the rotating shaft and / or the auger blade.

[0018] Optionally, the second composite stirring blade comprises a cone wall scraping blade and a second boosting blade that are fixedly connected;

[0019] The cone wall scraper blade is arranged in close contact with the cone bucket-shaped side wall close to the reduced diameter booster section, and one end of the cone wall scraper blade away from the second booster blade is fixed on the rotating shaft or the auger blade;

[0020] The second boosting blade is located at the upper part of the reduced diameter boosting section, and one end of the second boosting blade away from the cone wall scraping blade is fixed on the rotating shaft.

[0021] Optionally, the second composite stirring blade and the first composite stirring blade are arranged on both sides of the rotating shaft opposite to each other, and the top height of the second composite stirring blade is flush with the bottom height of the first composite stirring blade;

[0022] The second booster blade of the second composite stirring blade is a downward pressure blade.

[0023] Optionally, the cross-sections of the stirring section and the sizing and pressurizing section are both circular, and the diameter of the inner circumferential wall of the stirring section decreases linearly from top to bottom;

[0024] The diameter ratio of the stirring section and the sizing and pressurizing section ranges from 2 to 4.

[0025] Optionally, the top and side of the stirring section are respectively provided with a water inlet structure and a material feed structure;

[0026] A discharging pipe for discharging materials at an angle is arranged at the bottom of the sizing and pressurizing section.

[0027] Optionally, the driving structure is arranged on the top of the shell, and the driving structure includes a transmission shaft coaxially fixedly connected to the rotating shaft and a bearing seat for mounting the transmission shaft, and a driving motor invertedly arranged above the bearing seat, and the output shaft of the driving motor is coaxially fixedly connected to the transmission shaft.

[0028] Beneficial effects of the utility model:

[0029] 1. The present application realizes the overall concept of first stirring and then pressurizing the low-moisture ferrite powder for discharging by means of a composite stirring and pressurizing structure which is arranged in a shell and has a first composite stirring blade and an auger blade, and the first composite stirring blade is located above the auger blade. Under this design concept, the inventor takes into account the special situation that the low-moisture ferrite powder has a low water content and insufficient friction of water, and arranges the auger blade below the first composite stirring blade to form a layout design in which the stirring section and the pressurizing section are distributed up and down, making full use of the weight of the material itself for auxiliary pressurization and reducing discharge obstacles, which can effectively solve the problem of difficulty in feeding materials in the process of feeding materials from the conventional stirring and evenly mixing device to the lower-level pumping device after the stirring is completed.

[0030] 2. The composite stirring and pressurizing structure of the present application also includes a second composite stirring blade arranged on the rotating shaft, and the second composite stirring blade is arranged in the reduced diameter pressurizing section of the shell, and the second composite stirring blade includes a second pressurizing blade, so that the material can be assisted in pressurizing by the second pressurizing blade before entering the sizing and pressurizing section, so that the material can enter the sizing and pressurizing section quickly and smoothly, and further increase the discharge pressure of the material in the sizing and pressurizing section.

[0031] 3. The first composite agitator blade of the present application includes a first booster blade, which can cooperate with the second booster blade of the second composite agitator blade to jointly pressurize the material entering the sizing and boosting section, and further increase the discharge pressure of the material in the sizing and boosting section.

[0032] 4. The first composite stirring blade of the present application includes a side wall scraping blade, and the second composite stirring blade includes a cone wall scraping blade, which can prevent the low-moisture content ferrite powder from adhering to the side wall of the shell, affecting the moisture content of the ferrite powder and affecting the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0034] Figure 2 It is a structural schematic diagram of the composite stirring and pressurizing structure in the embodiment of the present application.

[0035] Explanation of the reference numerals: 11-rotating shaft, 12-first composite stirring blade, 121-side wall scraping blade, 122-uniform stirring blade, 123-first boosting blade, 13-second composite stirring blade, 131-conical wall scraping blade, 132-second boosting blade, 14-auger blade, 21-stirring section, 211-feeding structure, 212-water inlet structure, 22-sizing boosting section, 221-discharge pipe, 23-reducing boosting section, 31-driving motor, 32-coupling, 33-bearing seat, 34-transmission shaft, 4-bracket. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0037] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0040] like Figure 1 and Figure 2 As shown, this embodiment provides a stirring and pressurizing feeding device for low-water-content ferrite powder, comprising a shell and a composite stirring and pressurizing structure arranged in the shell, and a driving structure for driving the composite stirring and pressurizing structure to rotate, wherein:

[0041] The composite stirring and pressurizing structure comprises a rotating shaft 11 vertically arranged in the housing, and a first composite stirring blade 12 and an auger blade 14 arranged on the rotating shaft 11, wherein the first composite stirring blade 12 is located above the auger blade 14;

[0042] The output end of the driving structure is connected to the end of the rotating shaft 11 .

[0043] The present embodiment adopts a composite stirring and pressurizing structure which is arranged in the shell and has a first composite stirring blade 12 and an auger blade 14, and the first composite stirring blade 12 is located above the auger blade 14, so that the present application realizes the overall concept of first stirring the low-moisture content ferrite powder and then pressurizing and conveying the material. Under this design concept, the inventor takes into account the special situation that the low-moisture content ferrite powder has a low water content and insufficient friction of water, and arranges the auger blade 14 below the first composite stirring blade 12, forming a layout design in which the stirring section 21 and the pressurizing section are distributed up and down, making full use of the weight of the material itself for auxiliary pressurization and reducing discharge obstacles, thereby effectively solving the problem of difficulty in feeding the conventional stirring and evenly mixing device to the lower-level pumping device during the feeding process after the stirring is completed.

[0044] Specifically, in this embodiment, the shell includes a stirring section 21 and a sizing and pressurizing section 22;

[0045] The rotating shaft 11 is arranged to penetrate the stirring section 21 and the sizing and supercharging section 22, and the first composite stirring blade 12 and the auger blade 14 are respectively located in the stirring section 21 and the sizing and supercharging section 22. In this embodiment, the cross-sections of the stirring section 21 and the sizing and supercharging section 22 are both circular, and the cross-sectional area ratio of the stirring section 21 and the sizing and supercharging section 22 is 4 to 9. In this embodiment, Figure 1 The cross-sectional area of ​​the stirring section 21 gradually decreases, and the cross-sectional area ratio of the stirring section 21 and the sizing and pressurizing section 22 is 4 to 6, which can be set by technicians as needed.

[0046] Specifically, in this embodiment, if Figure 1 and Figure 2 As shown, the first composite stirring blade 12 is located in the stirring section 21, and the first composite stirring blade 12 includes a side wall scraping blade 121 arranged parallel to the inner side wall of the stirring section 21, a material mixing blade 122 and a first boosting blade 123, wherein:

[0047] One end of the material mixing blade 122 is fixed on the rotating shaft 11, and the other end is fixedly connected to the top end of the side wall scraping blade 121;

[0048] One end of the first booster blade 123 is fixed on the rotating shaft 11, and the other end is fixedly connected to the bottom end of the side scraper blade 121. By providing the first composite stirring blade 12, the side scraper blade 121 of the first composite stirring blade 12 can scrape off the material adhered to the inner wall of the stirring section 21, the material mixing blade 122 can fully mix the material, and the first booster blade 123 can mix and assist in pressurizing the material to increase the discharge pressure of the material.

[0049] Specifically, in this embodiment, the auger blade 14 is a spiral blade, and the first booster blade 123 is a downward pressure blade. Both the spiral blade and the downward pressure blade are existing blades and will not be described in detail here.

[0050] In this embodiment, the shell further includes a reduced diameter boosting section 23 located between the stirring section 21 and the constant diameter boosting section 22, and the reduced diameter boosting section 23 is in a cone shape;

[0051] The composite stirring and pressurizing structure also includes a second composite stirring blade 13 located in the reduced diameter pressurizing section 23, and the second composite stirring blade 13 is fixedly connected to the rotating shaft 11 and / or the auger blade 14. The conical reduced diameter pressurizing section 23 can facilitate the material to enter the fixed diameter pressurizing section 22 for pressurized discharge.

[0052] Specifically, in this embodiment, the second composite stirring blade 13 includes a cone wall scraping blade 131 and a second boosting blade 132 that are fixedly connected;

[0053] The conical scraper blade 131 is arranged close to the conical bucket-shaped side wall of the reduced diameter booster section 23, and one end of the conical scraper blade 131 away from the second booster blade 132 is fixed on the rotating shaft 11 or the auger blade 14;

[0054] The second boosting blade 132 is located at the upper part of the reducing-diameter boosting section 23, and one end thereof away from the cone-wall scraping blade 131 is fixed on the rotating shaft 11. In this embodiment, the cone-wall scraping blade 131 of the second composite stirring blade 13 can prevent the material from adhering to the cone-shaped side wall, and the second boosting blade 132 can boost the material in the reducing-diameter boosting section 23, making it easier for the material to enter the fixed-diameter boosting section 22 and increase the pressure in the fixed-diameter boosting section 22. In addition, during the rotation of the rotating shaft 11, the second boosting blade 132 can not only play an auxiliary boosting role, but also play a certain role in stirring and evenly distributing the material. In this embodiment, Figure 1 and Figure 2 As shown, one end of the second booster blade 132 away from the cone wall scraper blade 131 is fixed on the auger blade 14 to ensure that the material at the bottom of the reduced diameter boost section 23 quickly enters the bottom of the auger blade 14 for boosting. In some embodiments, the second booster blade 132 can also be fixed on the rotating shaft 11 at one end away from the cone wall scraper blade 131.

[0055] Specifically, in this embodiment, the second composite stirring blade 13 and the first composite stirring blade 12 are arranged on both sides of the rotating shaft 11 opposite to each other, and the top height of the second composite stirring blade 13 is flush with the bottom height of the first composite stirring blade 12;

[0056] The second booster blade 132 of the second composite stirring blade 13 is a downward pressure blade. The second composite stirring blade 13 and the first composite stirring blade 12 are arranged on opposite sides, which is conducive to uniform stirring of the material.

[0057] The first booster blade 123 and the second booster blade 132 in the present application are both downward pressure blades, so that the two can cooperate with each other during the rotation process to jointly pressurize the material entering the sizing booster section 22 and further increase the discharge pressure of the material in the sizing booster section 22.

[0058] Specifically, Figure 1 As shown, in this embodiment, the cross-sections of the stirring section 21 and the sizing and pressurizing section 22 are both circular, and the diameter of the inner circumferential wall of the stirring section 21 decreases linearly from top to bottom;

[0059] The diameter ratio of the stirring section 21 to the sizing and pressurizing section 22 is in the range of 2 to 4. The large-sized stirring section 21 can make the materials mix more quickly and evenly, avoiding the problem of uneven mixing.

[0060] In this embodiment, if Figure 1 As shown, the top and side of the stirring section 21 are respectively provided with a water inlet structure 212 and a material feed structure 211;

[0061] A discharging pipe 221 for discharging materials at an angle is arranged at the bottom of the sizing and pressurizing section 22. The discharging pipe 221 in this embodiment is a straight pipe arranged at an angle to minimize the resistance of the materials during transportation.

[0062] Specifically, in this embodiment, the driving structure is arranged at the top of the shell, and the driving structure includes a transmission shaft 34 coaxially fixedly connected to the rotating shaft 11 and a bearing seat 33 for mounting the transmission shaft 34, and a driving motor 31 invertedly arranged above the bearing seat 33, and the output shaft of the driving motor 31 is coaxially fixedly connected to the transmission shaft 34.

[0063] In this embodiment, a coupling 32 is further included between the output shaft of the driving motor 31 and the transmission shaft 34. The transmission shaft 34 in this embodiment is detachably fixedly connected to the top of the rotating shaft 11 by bolts, which is convenient for subsequent inspection and maintenance.

[0064] In this embodiment, a bracket 4 is further included, and the shell is fixedly connected to the bracket 4. The shell is suspended in the air through the bracket 4, which facilitates the feeding of materials into the pumping device for pressurized pumping.

[0065] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A stirring and pressurizing feeding device for low-water content ferrite powder, characterized in that: It comprises a shell, a composite stirring and pressurizing structure arranged in the shell, and a driving structure for driving the composite stirring and pressurizing structure to rotate, wherein: The composite stirring and pressurizing structure comprises a rotating shaft (11) vertically arranged in a housing, and a first composite stirring blade (12) and an auger blade (14) arranged on the rotating shaft (11), wherein the first composite stirring blade (12) is located above the auger blade (14); The output end of the driving structure is connected to the end of the rotating shaft (11).

2. The stirring and pressurizing feeding device for low-water content ferrite powder according to claim 1, characterized in that: The shell comprises a stirring section (21) and a sizing and pressurizing section (22); The rotating shaft (11) is arranged to penetrate the stirring section (21) and the sizing and pressurizing section (22); the first composite stirring blade (12) and the auger blade (14) are respectively located in the stirring section (21) and the sizing and pressurizing section (22).

3. The stirring and pressurizing feeding device for low-water content ferrite powder according to claim 2, characterized in that: The first composite stirring blade (12) is located in the stirring section (21), and the first composite stirring blade (12) comprises a side wall scraping blade (121) arranged parallel to the inner side wall of the stirring section (21), a material uniform stirring blade (122) and a first pressure increasing blade (123), wherein: One end of the material mixing blade (122) is fixed on the rotating shaft (11), and the other end is fixedly connected to the top end of the side wall scraping blade (121); One end of the first boosting blade (123) is fixed on the rotating shaft (11), and the other end is fixedly connected to the bottom end of the side wall scraping blade (121).

4. The stirring and pressurizing feeding device for low-water content ferrite powder according to claim 3, characterized in that: The auger blade (14) is a spiral blade, and the first booster blade (123) is a downward pressure blade.

5. The stirring and pressurizing feeding device for low-water content ferrite powder according to claim 2, characterized in that: The shell further comprises a reduced diameter pressurizing section (23) located between the stirring section (21) and the constant diameter pressurizing section (22), and the reduced diameter pressurizing section (23) is in a cone shape; The composite stirring and pressurizing structure also includes a second composite stirring blade (13) located in the reduced diameter pressurizing section (23), and the second composite stirring blade (13) is fixedly connected to the rotating shaft (11) and / or the auger blade (14).

6. The stirring and pressurizing feeding device for low-water content ferrite powder according to claim 5, characterized in that: The second composite stirring blade (13) comprises a cone wall scraping blade (131) and a second boosting blade (132) which are fixedly connected; The conical wall scraping blade (131) is arranged in close contact with the conical bucket-shaped side wall close to the reduced diameter boosting section (23), and one end of the conical wall scraping blade (131) away from the second boosting blade (132) is fixed on the rotating shaft (11) or the auger blade (14); The second boosting blade (132) is located at the upper part of the reduced diameter boosting section (23), and one end of the second boosting blade (132) away from the cone wall scraping blade (131) is fixed on the rotating shaft (11).

7. The stirring and pressurizing feeding device for low-water content ferrite powder according to claim 6, characterized in that: The second composite stirring blade (13) and the first composite stirring blade (12) are arranged on both sides of the rotating shaft (11) opposite to each other, and the top height of the second composite stirring blade (13) is flush with the bottom height of the first composite stirring blade (12); The second boosting blade (132) of the second composite stirring blade (13) is a downward pressure blade.

8. The stirring and pressurizing feeding device for low-water content ferrite powder according to claim 2, characterized in that: The cross sections of the stirring section (21) and the sizing and pressurizing section (22) are both circular, and the diameter of the inner wall of the stirring section (21) decreases linearly from top to bottom; The diameter ratio of the stirring section (21) and the sizing and pressurizing section (22) is in the range of 2 to 4.

9. The stirring and pressurizing feeding device for low-water content ferrite powder according to claim 2, characterized in that: The top and side of the stirring section (21) are respectively provided with a water inlet structure (212) and a material feed structure (211); A discharge pipe (221) for discharging materials at an angle is provided at the bottom of the sizing and pressurizing section (22).

10. The stirring and pressurizing feeding device for low-water content ferrite powder according to claim 1, characterized in that: The driving structure is arranged at the top of the shell, and comprises a transmission shaft (34) coaxially fixedly connected to the rotating shaft (11), a bearing seat (33) for mounting the transmission shaft (34), and a driving motor (31) invertedly arranged above the bearing seat (33), wherein the output shaft of the driving motor (31) is coaxially fixedly connected to the transmission shaft (34).

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