Efficient flow dividing type discharging mechanism suitable for powder refinement treatment

Abstract

The invention discloses an efficient flow-dividing type discharging mechanism suitable for powder refinement treatment, which aims at the discharging process of powder, powder is screened layer by layer through two or more than two material dividing ports with different calibers, specifically, a coil spring is used for driving the powder to annularly flow in a material dividing box, so that the powder is separated from the material dividing box, and the powder is separated from the material dividing box. On the basis, a guide sleeve is additionally arranged in the distribution process, on the basis of the electromagnetic principle, an electromagnetic pulse stroke is formed in the guide sleeve, on one hand, powder in a hopper is vibrated to prevent accumulation, and on the other hand, pulse air pressure impact is provided for the screening process in a material distribution box. The invention aims to preliminarily promote the powder screening effect, in addition, aiming at the discharging process of the first-order bin and the second-order bin, a three-wing material distributing plate is additionally arranged, a vibration auxiliary discharging mode is provided for discharging by matching a collision rod on the three-wing material distributing plate with a fluctuation piece, and the powder screening effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of material discharge mechanisms, and in particular to a high-efficiency split-flow type material discharge mechanism suitable for fine processing of powders. Background Art

[0002] Powder refinement refers to reducing the particle size of the powder to the micron level or even the nanometer level through a series of physical and chemical methods to improve its physical and chemical properties to meet the needs of specific applications. Please refer to the physical grinding methods involved in publication numbers CN114308363A and CN113351315A.

[0003] For powder, on the one hand, there is internal friction resistance, which is essentially the "bite force" generated by the surface friction between powder particles and the chain reaction of powders; on the other hand, there is cohesion, which is specifically related to parameters such as powder size and surface roughness. That is, during the discharge process of powder, the problem of raw material accumulation occurs under the dual influence of internal friction resistance and cohesion, which affects the discharge, especially when the powder particles are different, which will aggravate the degree of discharge impact. It should also be noted that there is an upper limit to the processing capacity of powder fine processing equipment (grinding, screening), which is specifically manifested as: if the powder discharge volume is large, the processing equipment cannot fully meet the processing requirements, on the contrary, if the powder discharge volume is low, it will "waste" the processing capacity of the processing equipment;

[0004] To this end, this application proposes a solution. Summary of the invention

[0005] The purpose of the present invention is to provide an efficient split-flow discharge mechanism suitable for powder fine processing. It is aimed at the powder fine processing process. When discharging powder, due to the dual influence of the two physical properties of the powder's internal friction resistance and cohesion, on the one hand, it may cause powder accumulation, and on the other hand, it will affect the powder discharge amount, which further affects the powder fine processing effect.

[0006] The purpose of the present invention can be achieved by the following technical scheme: an efficient split-flow feeding mechanism suitable for fine processing of powders, comprising a hopper, a feeding box and a sealing plate arranged from top to bottom, the hopper is connected to the inside of the feeding box, and a driving motor is installed at the center point of the bottom end of the feeding box, the driving motor transmission rod penetrates upward into the hopper, and a coil spring sheet and a spiral feeding rod are installed at the outer wall position of the feeding box and the hopper corresponding to the driving motor;

[0007] A first-order bin and a second-order bin are arranged at the lower side of the material distribution box, and a material distribution port corresponding to the first-order bin and the second-order bin is opened at the lower side of the material distribution box, and a discharge pipe corresponding to the first-order bin and the second-order bin is installed at the lower side of the sealing plate.

[0008] It is further configured as follows: the first-order bin and the second-order bin are distributed along the outer circle and the inner circle of the material distribution box, and the diameter of the material distribution opening in the first-order bin is larger than the diameter of the material distribution opening in the second-order bin.

[0009] It is further configured as follows: a rotating assembly is provided in both the first-order bin and the second-order bin, the rotating assembly includes a winding electromagnetic coil group, a three-wing dividing plate and an inner magnetic ring group, the inner magnetic ring group is arranged in the first-order bin and the second-order bin, and the winding electromagnetic coil group is arranged at an external position of the first-order bin and the second-order bin.

[0010] It is further configured as follows: the sealing plate is used to seal the first-order bin and the second-order bin, the center point position of the three-wing material dividing plate is rotatably connected in the inner magnetic ring group, and the width of the three-wing material dividing plate matches the groove width of the inner magnetic ring group.

[0011] It is further configured as follows: the lower end of one of the wing plates of the three-wing material dividing plate matches the upper surface of the sealing disk, and a striker is slidably installed on the other wing plate of the three-wing material dividing plate, and a connecting spring is arranged between the striker and the surface of the wing plate.

[0012] It is further configured as follows: a fluctuating plate is installed on the upper side of the material distribution box corresponding to the first-order bin and the second-order bin, the fluctuating plate is provided with leakage openings corresponding to the first-order bin and the second-order bin, and the top end of the impact rod is a sphere and matches the lower surface of the fluctuating plate.

[0013] It is further configured as follows: a vertically arranged guide sleeve is installed on the upper surface of the distribution box, the guide sleeve is distributed in a ring shape along the center point of the hopper, and the lower end of the guide sleeve is connected to the inside of the distribution box, and the upper end of the guide sleeve is in contact with the outer surface of the hopper.

[0014] It is further configured as follows: an energized electromagnetic block is installed at an internal position of the guide sleeve, a guide rod is slidably installed in a vertical direction at the center point of the energized electromagnetic block, a permanent magnet block and a piston block arranged from top to bottom are installed at the lower end position of the guide rod corresponding to the energized electromagnetic block, the piston block is slidably connected to the inner wall of the guide sleeve, and a billiard ball is installed at the top end position of the guide rod.

[0015] The present invention has the following beneficial effects:

[0016] 1. For the feeding process in the fine processing of powders, the material distribution box is used as a temporary transfer structure for the powders. The rotating action of the coil spring is coordinated to drive the powders to continuously "flow" along the contour line of the coil spring in the material distribution box, and two or more material distribution ports with different calibers are used to separate the powders according to particle size. By independently separating the powders of mixed particles of different sizes, the problem of powder accumulation or influence on the powder discharge amount due to the two key physical parameters of internal friction resistance and cohesion can be avoided;

[0017] 2. Based on the above content, for the diversion process of the dividing box, firstly, a guide sleeve is added at the upper side of the dividing box. The electromagnetic principle is used inside the guide sleeve to form a pulse air pressure shock. On the one hand, the billiard ball intermittently hits the hopper to prevent the powder from accumulating in the hopper and affecting the discharge. On the other hand, it provides downward air pressure for the powder diversion process to promote the powder discharge process during the diversion process. Further, a three-wing dividing plate is added to the first-order bin and the second-order bin. The rotating action of the three-wing dividing plate cooperates with the wave plate to provide vibration force for the diversion process to avoid the powder from being blocked at the discharge port. The key is to utilize the wind force generated by the rotation of the three-wing dividing plate and the position change process to avoid the powder from accumulating in the first-order bin or the second-order bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic structural diagram of a high-efficiency split-flow feeding mechanism suitable for fine powder processing proposed by the present invention;

[0020] Figure 2 The invention proposes a high-efficiency split-flow feeding mechanism suitable for fine powder processing. Figure 1 A cross-sectional view of

[0021] Figure 3 The invention proposes a high-efficiency split-flow feeding mechanism suitable for fine powder processing. Figure 1 sectional view of

[0022] Figure 4 A top cross-sectional view of a material distribution box in a high-efficiency split-flow type material discharge mechanism suitable for fine powder processing proposed by the present invention;

[0023] Figure 5 The invention proposes a high-efficiency split-flow feeding mechanism suitable for fine powder processing. Figure 3 Split diagram of ;

[0024] Figure 6 This is a schematic diagram of the structure of the wave plate in the efficient split-flow feeding mechanism suitable for fine powder processing proposed by the present invention;

[0025] Figure 7 It is a partial structural schematic diagram of the inner magnetic ring group in the efficient split-flow feeding mechanism suitable for fine powder processing proposed by the present invention;

[0026] Figure 8 This is a cross-sectional view of a guide sleeve in a high-efficiency split-flow feeding mechanism suitable for fine powder processing proposed by the present invention.

[0027] In the figure: 1. hopper; 2. guide sleeve; 3. material distribution box; 301. first-stage bin; 302. second-stage bin; 4. winding electromagnetic coil group; 5. bin sealing plate; 6. discharge pipe; 7. spiral discharge rod; 8. coil spring; 9. inner magnetic ring group; 10. drive motor; 11. three-wing material distribution plate; 12. wave plate; 13. billiard ball; 14. connecting spring; 15. impact rod; 16. piston block; 17. permanent magnet block; 18. guide rod; 19. energized electromagnetic block. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1: In the process of powder refinement, when discharging powder, due to the dual influence of the two physical properties of the powder, internal friction resistance and cohesion, powder accumulation may be caused on the one hand, and the discharge amount of powder may be affected on the other hand, which further affects the effect of powder refinement. The following technical solution is proposed:

[0030] Reference Figures 1 to 8 The efficient split-flow feeding mechanism suitable for fine processing of powder in this embodiment comprises a hopper 1, a feeding box 3 and a sealing plate 5 arranged from top to bottom. The hopper 1 is connected to the inside of the feeding box 3, and a driving motor 10 is installed at the center point of the bottom end of the feeding box 3. The driving motor 10 transmission rod penetrates upward into the hopper 1, and a coil spring sheet 8 and a spiral feeding rod 7 are installed at the outer wall positions of the feeding box 3 and the hopper 1 corresponding to the driving motor 10;

[0031] A first-order bin 301 and a second-order bin 302 are arranged at the lower side of the dividing box 3, and a dividing opening corresponding to the first-order bin 301 and the second-order bin 302 is opened at the lower side of the dividing box 3, and a discharge pipe 6 corresponding to the first-order bin 301 and the second-order bin 302 is installed at the lower side of the sealing plate 5.

[0032] Basic principle: Figure 2 As a basis for explanation, the powder is directly put into the hopper 1, and the pneumatic drive motor 10 drives the spiral feed rod 7 and the coil spring 8 to rotate continuously. In this process, the powder in the hopper 1 is gradually transferred to the distribution box 3 by the action of the spiral feed rod 7, and further reference is made to Figure 4The coiled spring piece 8 is in a counterclockwise spiral shape, so it is necessary to ensure that the spiral feeding rod 7 and the coiled spring piece 8 rotate counterclockwise, and the powder falling into the material distribution box 3 is affected by the spiral line of the coiled spring piece 8 and "flows" in an annular manner, and further from Figure 4 It can be understood that:

[0033] A plurality of distribution openings are provided on the lower surface of the distribution box 3, and the diameter of the distribution openings needs to be further limited. Because the powder in the distribution box 3 flows from the center point to the outside, the diameter of the powder openings gradually increases along the direction extending from the center point of the distribution box 3 to the outside, thereby screening the powders one by one through the distribution openings to achieve a diversion effect.

[0034] Example 2: Based on the basic principle of Example 1, the powder diversion process is supplemented as follows:

[0035] The first-order bin 301 and the second-order bin 302 are distributed along the outer circle and inner circle of the dividing box 3, and the diameter of the dividing port in the first-order bin 301 is larger than the diameter of the dividing port in the second-order bin 302. A rotating component is provided in both the first-order bin 301 and the second-order bin 302, and the rotating component includes a winding electromagnetic coil group 4, a three-wing dividing plate 11 and an inner magnetic ring group 9. The inner magnetic ring group 9 is arranged in the first-order bin 301 and the second-order bin 302, and the winding electromagnetic coil group 4 is arranged at the outer position of the first-order bin 301 and the second-order bin 302. The sealing plate 5 is used to close the first-order bin 301 and the second-order bin 302. The center point of the three-wing dividing plate 11 is rotatably connected in the inner magnetic ring group 9, and the width of the three-wing dividing plate 11 matches the groove width of the inner magnetic ring group 9.

[0036] Reference Figure 2 and Figure 3 The following instructions are given:

[0037] S1: First, according to the size of the caliber of the material distribution port, the first-stage bin 301 and the second-stage bin 302 are set. It should be briefly introduced that the present invention is not limited to the setting position of the first-stage bin 301 and the second-stage bin 302. More than two material distribution spaces can be set according to actual process requirements, such as further adding a third-stage bin and a fourth-stage bin. This part will not be explained in detail. It should be explained that powders of corresponding particle sizes can only enter the corresponding first-stage bin 301 or second-stage bin 302 and be discharged from the discharge pipe 6;

[0038] S2: Reference Figure 7, an inner magnetic ring group 9 is provided in both the first-order bin 301 and the second-order bin 302. The inner magnetic ring group 9 is essentially composed of two rings, and the two rings are rotatably connected in the inner wall position of the first-order bin 301 and the second-order bin 302. The key is that one of the rings is a permanent magnet, so that a strong magnetic field is generated when the winding electromagnetic coil group 4 is energized. Under the action of the strong magnetic field, the inner magnetic ring group 9 is driven to rotate at a uniform speed. The specific function is to directional rotate the three-wing dividing plate 11, such as Figure 7 The structural characteristics of the three-wing dividing plate 11 are explained. The lower end of one of the wings of the three-wing dividing plate 11 is in contact with the upper surface of the sealing plate 5. Specifically, the wing at this position remains vertically set. When the powder falls from the dividing box 3 into the first-stage bin 301 or the second-stage bin 302, the vertically set wing is used to scratch the powder remaining in the first-stage bin 301 or the second-stage bin 302, so that the powder is concentrated at the discharge pipe position for discharge.

[0039] Embodiment 3: Based on Embodiment 2, the following supplements are made:

[0040] The lower end of one of the wings of the three-wing material dividing plate 11 matches with the upper surface of the bin sealing plate 5, and a striker 15 is slidably installed on the other wing of the three-wing material dividing plate 11, and a connecting spring 14 is provided between the striker 15 and the surface of the wing. The material dividing box 3 is provided with an undulating plate 12 at the upper side position corresponding to the first-order bin 301 and the second-order bin 302, and the undulating plate 12 is provided with a material leakage port corresponding to the first-order bin 301 and the second-order bin 302;

[0041] The top of the impact rod 15 is a sphere and matches the lower surface of the wave plate 12. A vertically arranged guide sleeve 2 is installed on the upper surface of the distribution box 3. The guide sleeve 2 is distributed in a ring shape along the center point of the hopper 1, and the lower end of the guide sleeve 2 is connected to the inside of the distribution box 3. The upper end of the guide sleeve 2 contacts the outer surface of the hopper 1. An energized electromagnetic block 19 is installed inside the guide sleeve 2. A guide rod 18 is slidably installed in the vertical direction at the center point of the energized electromagnetic block 19. A permanent magnet block 17 and a piston block 16 arranged from top to bottom are installed at the lower end of the guide rod 18 corresponding to the energized electromagnetic block 19. The piston block 16 is slidably connected to the inner wall of the guide sleeve 2, and a billiard ball 13 is installed at the top of the guide rod 18.

[0042] Solution description: Again, according to S2 in the second embodiment, a striker 15 is further provided on another wing plate of the three-wing material distribution plate 11. The essence of the striker 15 is that the striker 15 is always perpendicular to the wing plate and maintains a sliding connection with the wing plate, and a connecting spring 14 is provided between the two. When the integral inner magnetic ring group 9 rotates in a directional and constant speed, in theory, the top position of the striker 15 contacts the lower surface position of the distribution box 3. For this, a wave plate 12 is further provided for the lower surface position of the distribution box 3.

[0043] Specific reference Figure 6, the wave plate 12 will not interfere with the discharge process of the powder, but specifically its lower surface is wavy, and for this it is necessary to further limit the structural characteristics of the three-wing material distribution plate 11, and ensure that the other two wing plates are inclined. On the one hand, the impact process of the impact rod 15 on the wave plate 12 drives the reciprocating motion of the impact rod 15, so that the continuous impact of the impact rod 15 on the wave plate 12 generates a sense of vibration, the purpose of which is to avoid the powder being blocked at the distribution port position, and on the other hand, the tilted design of the wing plate is combined with the rotating action to generate downwind force, thereby promoting the diversion structure;

[0044] The guide sleeve 2 is further described. The lower end of the guide sleeve 2 is connected to the inside of the material distribution box 3. The key is to change the way of energizing the energized electromagnetic block 19 so that the energized electromagnetic block 19 periodically generates periodic repulsion and attraction on the permanent magnet block 17, thereby driving the guide rod 18 to move intermittently in the vertical direction. When the guide rod 18 moves upward, it will hit the hopper 1 through the billiard ball 13, the purpose of which is to vibrate the powder retained in the hopper 1 to prevent the powder from accumulating in the hopper 1.

[0045] The key is to drive the piston block 16 to move downward periodically, so that the guide sleeve 2 forms an inflation structure relative to the distribution box 3, which mainly inflates and pressurizes the inside of the distribution box 3 to promote the discharge of powder from the distribution port, and also prevents the powder from clogging the distribution port. By independently diverting powders of mixed particles of different sizes, the problem of powder accumulation or influence on the powder discharge amount due to the two key physical parameters of internal friction resistance and cohesion can be avoided.

[0046] In summary: for the feeding process of powder, two or more distribution ports with different calibers are used to screen the powder layer by layer. Specifically, the coil spring is used to drive the powder to "flow" in a circular manner inside the distribution box, so as to divert the powder according to the particle size. On this basis, a guide sleeve is added for the diversion process, and based on the electromagnetic principle, an electromagnetic pulse stroke is formed inside the guide sleeve. On the one hand, the powder inside the hopper is vibrated to prevent accumulation, and on the other hand, a pulse air pressure shock is provided for the screening process in the distribution box. The purpose is to initially promote the powder screening effect. In addition, for the discharging process of the first-order bin and the second-order bin, a three-wing distribution plate is added, and the impact rod on the three-wing distribution plate is matched with the wave plate to provide vibration-assisted discharging for the discharging, thereby improving the powder screening effect.

[0047] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An efficient split-flow feeding mechanism suitable for fine powder processing, comprising a hopper (1), a feed box (3) and a sealing plate (5) arranged from top to bottom, characterized in that: The hopper (1) is connected to the inside of the material distribution box (3), and a driving motor (10) is installed at the center point of the bottom end of the material distribution box (3). The driving motor (10) transmission rod passes through the hopper (1) upwards, and a coil spring sheet (8) and a spiral feeding rod (7) are installed at the outer wall positions of the material distribution box (3) and the hopper (1) corresponding to the driving motor (10); A first-stage bin (301) and a second-stage bin (302) are arranged at the lower side of the material distribution box (3), and a material distribution opening corresponding to the first-stage bin (301) and the second-stage bin (302) is opened at the lower side of the material distribution box (3), and a discharge pipe (6) corresponding to the first-stage bin (301) and the second-stage bin (302) is installed at the lower side of the sealing plate (5).

2. The efficient split-flow feeding mechanism suitable for fine powder processing according to claim 1 is characterized in that: The first-stage bin (301) and the second-stage bin (302) are distributed along the outer circle and inner circle of the material distribution box (3), and the diameter of the material distribution opening in the first-stage bin (301) is larger than the diameter of the material distribution opening in the second-stage bin (302).

3. The efficient split-flow feeding mechanism suitable for fine powder processing according to claim 2 is characterized in that: The first-order bin (301) and the second-order bin (302) are both provided with a rotating assembly, wherein the rotating assembly comprises a winding electromagnetic coil assembly (4), a three-wing dividing plate (11) and an inner magnetic ring assembly (9), wherein the inner magnetic ring assembly (9) is arranged in the first-order bin (301) and the second-order bin (302), and the winding electromagnetic coil assembly (4) is arranged at an external position of the first-order bin (301) and the second-order bin (302).

4. The efficient split-flow feeding mechanism suitable for fine powder processing according to claim 3 is characterized in that: The sealing plate (5) is used to seal the first-stage bin (301) and the second-stage bin (302); the center point of the three-wing material dividing plate (11) is rotatably connected in the inner magnetic ring group (9); and the width of the three-wing material dividing plate (11) matches the groove width of the inner magnetic ring group (9).

5. The efficient split-flow feeding mechanism suitable for fine powder processing according to claim 4 is characterized in that: The lower end of one of the wings of the three-wing material dividing plate (11) matches the upper surface of the storage tank sealing plate (5), and a striker (15) is slidably mounted on the other wing of the three-wing material dividing plate (11), and a connecting spring (14) is provided between the striker (15) and the surface of the wing.

6. The efficient split-flow feeding mechanism suitable for fine powder processing according to claim 5 is characterized in that: The material distribution box (3) is provided with an undulating plate (12) at the upper side corresponding to the first-stage bin (301) and the second-stage bin (302), and the undulating plate (12) is provided with material leakage openings corresponding to the first-stage bin (301) and the second-stage bin (302), and the top end of the impact rod (15) is a sphere and matches the lower surface of the undulating plate (12).

7. The high-efficiency split-flow feeding mechanism suitable for fine powder processing according to claim 1 is characterized in that: A vertically arranged guide sleeve (2) is installed on the upper surface of the material distribution box (3); the guide sleeve (2) is distributed in a ring shape along the center point of the hopper (1); the lower end of the guide sleeve (2) is connected to the inside of the material distribution box (3); and the upper end of the guide sleeve (2) is in contact with the outer surface of the hopper (1).

8. The efficient split-flow feeding mechanism suitable for fine powder processing according to claim 7 is characterized in that: An energized electromagnetic block (19) is installed at an inner position of the guide sleeve (2); a guide rod (18) is slidably installed in a vertical direction at the center point of the energized electromagnetic block (19); a permanent magnet block (17) and a piston block (16) are installed from top to bottom at a position corresponding to the lower end of the energized electromagnetic block (19) of the guide rod (18); the piston block (16) is slidably connected to the inner wall of the guide sleeve (2); and a billiard ball (13) is installed at the top position of the guide rod (18).

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