Multi-stage stirring device for electronic paste

Abstract

The invention provides a multi-stage stirring device for electronic paste, and belongs to the technical field of stirring equipment, the multi-stage stirring device comprises rotating plates, extrusion plates, a driving assembly and a transmission assembly, an outer rotating shaft is rotatably mounted in a cylinder, a plurality of rotating plates are fixedly mounted on the outer rotating shaft, and an inner rotating shaft is rotatably mounted in the outer rotating shaft; a plurality of extrusion plates are fixedly mounted on the inner rotating shaft, a filter plate is rotatably mounted at one end of the outer rotating shaft, the filter plate is detachably connected with the barrel, a rotating column is rotatably mounted at the end, away from the rotating plate, in the barrel, and a plurality of stirring rods are fixedly mounted on the rotating column; through relative rotation of the extrusion plates, agglomerated powder blocks can be pressed and scattered, materials can overflow from the first through holes and the second through holes during pressing and scattering, and therefore the size of the powder blocks can be further reduced, continuous extrusion and overflow are achieved, and effective dispersion of powder is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of stirring equipment, in particular to a multi-stage stirring device for electronic slurry. Background Art

[0002] Electronic slurry is the basic material for manufacturing thick film components. It is a paste that is evenly mixed by solid powder and organic solvent through three-roll rolling. The electronic slurry mixing process uses a mixing device for mixing. The existing mixing device uses a motor to drive the blades to rotate to achieve mixing, and the mixing effect is not good.

[0003] When solid powder is put into an organic solvent, the accumulation of fixed powder will form a liquid film completely wrapping the outer surface of the powder mass the moment it falls into the organic solvent, making it difficult to disperse the powder mass. The presence of the powder mass can easily reduce the mixing effect of the electronic slurry. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a multi-stage stirring device for electronic slurry.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a multi-stage stirring device for electronic slurry, comprising a stirring rod, a cylinder, and also comprising a rotating plate, an extrusion plate, a driving assembly, and a transmission assembly, wherein an outer rotating shaft is rotatably installed in the cylinder, a plurality of rotating plates are fixedly installed on the outer rotating shaft, an inner rotating shaft is rotatably installed in the outer rotating shaft, the inner rotating shaft and the outer rotating shaft are coaxially arranged, a plurality of extrusion plates are fixedly installed on the inner rotating shaft, a plurality of first through holes and a second through holes are respectively provided on the extrusion plate and the rotating plate, the driving assembly and the transmission assembly are installed on the cylinder, the driving assembly is connected to the outer rotating shaft, the transmission assembly is connected to the inner rotating shaft, the driving assembly and the transmission assembly respectively drive the outer rotating shaft and the inner rotating shaft to rotate, a filter plate is rotatably installed at one end of the outer rotating shaft, the filter plate is detachably connected to the cylinder, a rotating column is rotatably installed at one end of the cylinder away from the rotating plate, and a plurality of stirring rods are fixedly installed on the rotating column.

[0006] As a further improvement scheme: a trapezoidal block is fixedly mounted on the side of the rotating plate away from the outer rotating shaft.

[0007] As a further improvement scheme: the outer rotating shaft is provided with an external thread, and the outer rotating shaft is connected with a sealing plate via the external thread.

[0008] As a further improvement scheme: a sliding block is slidably mounted on the sealing plate, a third spring is connected between the sliding block and the sealing plate, and a flexible scraper is fixedly mounted on the sliding block.

[0009] As a further improvement scheme: a ring is fixedly installed on one end of the rotating column, a plurality of second wedge-shaped openings are opened on the ring, a first wedge-shaped opening matching with the second wedge-shaped openings is opened on the outer wall of the outer rotating shaft, and the end of the rotating column away from the second wedge-shaped openings is elastically connected to the bottom of the cylinder.

[0010] As a further improvement scheme: the transmission assembly is connected to the driving assembly, and the driving assembly drives the outer rotating shaft to rotate while driving the inner rotating shaft to reciprocate.

[0011] As a further improvement scheme: the driving assembly includes: a motor, a first gear, and a second gear. The motor is fixedly mounted on the cylinder, the output end of the motor is connected to the first gear, and the second gear is fixedly mounted on the outer wall of the outer shaft.

[0012] As a further improvement scheme: the transmission assembly includes: a sliding plate, a first spring, a second fixed tooth, a full gear, a toothless gear, and a first fixed tooth. The sliding plate is elastically mounted on the cylinder, and a plurality of first fixed teeth and a plurality of second fixed teeth are arranged on the sliding plate. The first fixed teeth and the second fixed teeth are staggered with each other. The toothless gear and the full gear are respectively fixedly mounted on the first gear and the inner rotating shaft. The toothless gear is intermittently meshed with the first fixed tooth, and the full gear is intermittently meshed with the second fixed tooth.

[0013] Compared with the prior art, the beneficial effect of the present invention is that the inner rotating shaft is driven to rotate inside the outer rotating shaft through the transmission component, thereby driving the extrusion plate to rotate relative to the rotating plate. Therefore, after the organic solvent and solid powder are put into the cylinder, the rotating plate and the extrusion plate are first rotated to achieve relative rotation of the extrusion plate and the rotating plate, so that the fixed powder blocks between the extrusion plate and the rotating plate can be extruded, and the clumped powder blocks can be dispersed through the relative rotation of the extrusion plates. While being dispersed, the materials can overflow from the first through hole and the second through hole, thereby further reducing the volume of the powder blocks. Continuous extrusion and overflow can achieve effective dispersion of the powder. After dispersion, the mixture will fall through the filter plate and be further stirred through the rotating column. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of a multi-stage stirring device for electronic slurry;

[0015] Figure 2 A schematic diagram of the driving component structure of a multi-stage stirring device for electronic slurry Figure 1 ;

[0016] Figure 3 A schematic diagram of the driving component structure of a multi-stage stirring device for electronic slurry Figure 2 ;

[0017] Figure 4 A schematic diagram of a toothless gear structure of a multi-stage stirring device for electronic slurry;

[0018] Figure 5 A schematic diagram of the structure of a transmission component of a multi-stage stirring device for electronic slurry;

[0019] Figure 6 It is a schematic diagram of the overall cross-sectional structure of a multi-stage stirring device for electronic slurry;

[0020] Figure 7 A schematic diagram of the structure of an outer rotating shaft of a multi-stage stirring device for electronic slurry;

[0021] Figure 8 A schematic diagram of the inner rotating shaft structure of a multi-stage stirring device for electronic slurry;

[0022] Fig. 9 A schematic diagram of the rotating column structure of a multi-stage stirring device for electronic slurry;

[0023] Fig.10 A schematic diagram of the sealing plate structure of a multi-stage stirring device for electronic slurry;

[0024] In the figure: 1, cylinder; 11, discharge pipe; 12, liquid inlet pipe; 13, feed pipe; 14, support frame; 2, inner shaft; 21, extrusion plate; 22, first through hole; 3, outer shaft; 31, rotating plate; 32, second through hole; 33, trapezoidal block; 34, external thread; 35, first wedge-shaped mouth; 36, rotating groove; 4, driving assembly; 41, motor; 42, first gear; 43, second gear; 5, transmission assembly; 51, sliding plate; 52, first spring; 53, fixed seat; 54, second fixed tooth; 55, full gear; 56, toothless gear; 57, first fixed tooth; 6, filter plate; 7, rotating column; 71, stirring rod; 72, outer sleeve; 73, second spring; 8, sealing plate; 81, third spring; 82, sliding block; 83, flexible scraper; 9, collar; 10, second wedge-shaped mouth. DETAILED DESCRIPTION

[0025] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0026] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0027] See also Figures 1 to 10In one embodiment, a multi-stage stirring device for electronic slurry includes a stirring rod 71, a cylinder 1, a rotating plate 31, an extrusion plate 21, a driving assembly 4, and a transmission assembly 5. An outer rotating shaft 3 is rotatably installed in the cylinder 1, and a plurality of rotating plates 31 are fixedly installed on the outer rotating shaft 3. An inner rotating shaft 2 is rotatably installed in the outer rotating shaft 3. The inner rotating shaft 2 is coaxially arranged with the outer rotating shaft 3. A plurality of extrusion plates 21 are fixedly installed on the inner rotating shaft 2. The extrusion plates 21 and the rotating plates 31 are respectively provided with a plurality of first through holes 2 2 and a second through hole 32, the driving assembly 4 and the transmission assembly 5 are installed on the cylinder 1, the driving assembly 4 is connected to the outer rotating shaft 3, the transmission assembly 5 is connected to the inner rotating shaft 2, the driving assembly 4 and the transmission assembly 5 respectively drive the outer rotating shaft 3 and the inner rotating shaft 2 to rotate, a filter plate 6 is rotatably installed at one end of the outer rotating shaft 3, the filter plate 6 is detachably connected to the cylinder 1, a rotating column 7 is rotatably installed at one end of the cylinder 1 away from the rotating plate 31, and a plurality of stirring rods 71 ​​are fixedly installed on the rotating column 7.

[0028] In this embodiment, a discharge pipe 11, a liquid inlet pipe 12, and a feed pipe 13 are installed on the cylinder 1. The discharge pipe 11 is used to discharge the electronic slurry, the liquid inlet pipe 12 is used to transport the organic solvent, and the feed pipe 13 is used to add solid powder. The cylinder 1 is divided into a dispersion chamber and a stirring chamber by the filter plate 6. The dispersion chamber is above the filter plate 6, and the stirring chamber is below the filter plate 6. A rotating groove 36 is opened on the outer rotating shaft 3, and one end of the extrusion plate 21 is located in the rotating groove 36.

[0029] The outer rotating shaft 3 is driven to rotate by the driving assembly 4, that is, the rotating plate 31 is driven to rotate in the dispersion chamber, and the inner rotating shaft 2 is driven to rotate by the transmission assembly 5, so that the extrusion plate 21 can be driven to rotate relative to the rotating plate 31. When the inner rotating shaft 2 does not rotate, the extrusion plate 21 and the rotating plate 31 remain relatively stationary. Therefore, after the organic solvent and the solid powder are put into the cylinder 1, the relative rotation of the extrusion plate 21 and the rotating plate 31 is realized by the rotation of the rotating plate 31 and the extrusion plate 21, so as to realize the relative rotation between the extrusion plate 21 and the rotating plate 31. The material is extruded, with emphasis on the fixed powder blocks, to prevent the outer periphery of the powder blocks from being wrapped by organic solvents to form a liquid film, which makes it difficult to disperse. The relative rotation of the extrusion plate 21 can crush the clumped powder blocks, and while crushing, the material can overflow from the first through hole 22 and the second through hole 32, thereby further reducing the volume of the powder blocks. After continuous extrusion and overflow, the powder can be effectively dispersed. After dispersion, the mixture will enter the stirring chamber through the filter plate 6, and the stirring operation will be performed in the stirring chamber by the rotating column 7.

[0030] See also Figure 7In one embodiment, a trapezoidal block 33 is fixedly mounted on a side of the rotating plate 31 away from the outer rotating shaft 3 .

[0031] In this embodiment, by providing a trapezoidal block 33, the inclined surface of the trapezoidal block 33 can be used to guide the material, so that the material at the edge of the cylinder 1 can be guided to the center of the cylinder 1, so as to participate in the extrusion operation, avoid the powder blocks from concentrating on the outer wall, and extrude the inner wall material while achieving sufficient stirring.

[0032] See also Figure 6 , Figure 7 , Fig.10 In one embodiment, an external thread 34 is provided on the outer rotating shaft 3 , and the outer rotating shaft 3 is connected to the sealing plate 8 via the external thread 34 .

[0033] In this embodiment, a sealing plate 8 is connected by a thread. Before the solid powder is fully dispersed, the rotation of the outer shaft 3 causes the sealing plate 8 to descend under the action of the external thread 34 and stay above the filter plate 6. The rotation of the outer shaft 3 can always ensure that the sealing plate 8 is close to the filter plate 6. When the solid powder is completely dispersed, that is, the solid powder blocks can be fully broken up, the motor 41 is reversed. At this time, the sealing plate 8 moves up under the action of the external thread 34, that is, a gap is left between the sealing plate 8 and the filter plate 6. At this time, the mixture in the dispersion chamber can flow into the stirring chamber through the gap. While reversing, the rotating plate 31 and the extrusion plate 21 are still rotating and rotating relatively. When the material falls into the stirring chamber through the filter plate 6, the rotating column 7 rotates, and the mixture can be further stirred by the rotating rod. After the powder is dispersed, further stirring is performed to fully stir the mixture.

[0034] See also Fig.10 In one embodiment, a sliding block 82 is slidably mounted on the sealing plate 8 , a third spring 81 is connected between the sliding block 82 and the sealing plate 8 , and a flexible scraper 83 is fixedly mounted on the sliding block 82 .

[0035] In this embodiment, a receiving groove (not shown in the figure) corresponding to the sliding block 82 and the third spring 81 is provided on the sealing plate 8. When the sealing plate 8 is in close contact with the filter plate 6, the sliding block 82 is located in the receiving groove. When the sealing plate 8 moves up, the sliding block 82 pops out. At this time, the mixture retained on the surface of the filter plate 6 can be scraped off by the flexible scraper 83, thereby avoiding clogging of the filter plate 6.

[0036] See also Figure 7 , Fig. 9 , Fig.10In one embodiment, a collar 9 is fixedly mounted on one end of the rotating column 7, a plurality of second wedge-shaped openings 10 are formed on the collar 9, a first wedge-shaped opening 35 matching with the second wedge-shaped openings 10 is formed on the outer wall of the outer rotating shaft 3, and one end of the rotating column 7 away from the second wedge-shaped openings 10 is elastically connected to the bottom of the cylinder 1.

[0037] In this embodiment, one end of the rotating column 7 extends into the outer shaft 3, so as to realize the stable rotation of the rotating column 7 and the outer shaft 3. The other end of the rotating column 7 is slidably installed in the outer sleeve 72. The outer sleeve 72 is fixedly installed at the bottom of the cylinder 1. A second spring 73 is installed between the bottom of the cylinder 1 and the rotating column 7. The inner wall of the outer sleeve 72 is slidably connected with the outer wall of the rotating column 7. The rotating column 7 can be limited by providing the outer sleeve 72. When the rotating plate 31 and the extrusion plate 21 rotate, the mixture is in the dispersion chamber. When the outer shaft 3 is inside, there is no need to rotate the column 7 for stirring operation. At this time, while the outer shaft 3 is rotating, the first wedge-shaped opening 35 and the second wedge-shaped opening 10 rotate relative to each other, and the rotating column 7 remains stationary. After the preliminary dispersion operation is completed, when the motor 41 drives the outer shaft 3 to reverse, the first wedge-shaped opening 35 and the second wedge-shaped opening 10 are completely fitted together, and the rotation of the outer shaft 3 drives the rotating column 7 to rotate at the same time. At this time, the mixture in the dispersion chamber continues to fall into the stirring chamber. At this time, the rotating plate 31, the extrusion plate 21, and the stirring rod 71 are all rotating.

[0038] See also Figures 2 to 5 In one embodiment, the transmission assembly 5 is connected to the driving assembly 4, and the driving assembly 4 drives the outer shaft 3 to rotate while driving the inner shaft 2 to reciprocate.

[0039] In this embodiment, by connecting the driving assembly 4 with the transmission assembly 5 , one driving source can be used to drive the outer rotating shaft 3 and the inner rotating shaft 2 to rotate.

[0040] See also Figures 2 to 5 In one embodiment, the driving assembly 4 includes: a motor 41, a first gear 42, and a second gear 43. The motor 41 is fixedly mounted on the cylinder 1, the output end of the motor 41 is connected to the first gear 42, and the second gear 43 is fixedly mounted on the outer wall of the outer rotating shaft 3.

[0041] In this embodiment, a support frame 14 is fixedly mounted on the top of the cylinder 1 , and a motor 41 is fixedly mounted on the support frame 14 , and transmission is achieved through the meshing of a first gear 42 and a second gear 43 .

[0042] See also Figures 2 to 5In one embodiment, the transmission assembly 5 includes: a sliding plate 51, a first spring 52, a second fixed tooth 54, a full gear 55, a toothless gear 56, and a first fixed tooth 57. The sliding plate 51 is elastically mounted on the cylinder 1, and a plurality of first fixed teeth 57 and a plurality of second fixed teeth 54 are arranged on the sliding plate 51. The first fixed teeth 57 and the second fixed teeth 54 are staggered with each other. The toothless gear 56 and the full gear 55 are fixedly mounted on the first gear 42 and the inner shaft 2, respectively. The toothless gear 56 is intermittently meshed with the first fixed tooth 57, and the full gear 55 is intermittently meshed with the second fixed tooth 54.

[0043] In this embodiment, a fixing seat 53 is fixedly installed on the cylinder 1, and a plurality of first springs 52 are provided. One end of the first spring 52 is fixedly connected to the fixing seat 53, and the other end of the first spring 52 is fixedly connected to the sliding plate 51.

[0044] When the first gear 42 rotates, the toothless gear 56 rotates at the same time, and the toothless gear 56 drives the sliding plate 51 to move. At the same time, the movement of the sliding plate 51 drives the full gear 55 to move, that is, drives the inner shaft 2 to rotate, until the toothless gear 56 is no longer engaged with the first fixed tooth 57. At this time, under the action of the first spring 52, the sliding plate 51 moves in the reverse direction, and the sliding plate 51 drives the inner shaft 2 to rotate in the reverse direction at the same time.

[0045] The working process of the present invention is as follows: the outer rotating shaft 3 is driven to rotate by the driving component 4, that is, the rotating plate 31 is driven to rotate in the dispersion chamber, and the inner rotating shaft 2 is driven to rotate by the transmission component 5, so that the extrusion plate 21 can be driven to rotate relative to the rotating plate 31. When the inner rotating shaft 2 does not rotate, the extrusion plate 21 and the rotating plate 31 remain relatively stationary. Before the solid powder is fully dispersed, at this time, the rotation of the outer rotating shaft 3 causes the sealing plate 8 to descend under the action of the external thread 34 and stay above the filter plate 6. Through the rotation of the outer rotating shaft 3, it can always ensure that the sealing plate 8 is close to the filter plate 6. The sliding block 82 is located in the accommodating groove. When the outer rotating shaft 3 rotates, the first wedge-shaped opening 35 and the second wedge-shaped opening 10 rotate relative to each other, and the rotating column 7 remains stationary. When the solid powder is fully dispersed, that is The solid powder blocks can be fully broken up, and at this time the motor 41 is reversed, the first wedge-shaped opening 35 is completely fitted with the second wedge-shaped opening 10, and the outer shaft 3 rotates while driving the rotating column 7 to rotate. At this time, the sealing plate 8 moves up under the action of the external thread 34, that is, a gap is left between the sealing plate 8 and the filter plate 6, and at the same time the sliding block 82 pops out, and the mixture retained on the surface of the filter plate 6 can be scraped off by the flexible scraper 83. At this time, the mixture in the dispersion chamber can flow into the stirring chamber through the gap. While reversing, the rotating plate 31 and the extrusion plate 21 are still rotating and rotating relatively. When the material falls into the stirring chamber through the filter plate 6, the rotating column 7 rotates, and the mixture can be further stirred by the rotating rod. After the powder is dispersed, further stirring is performed to achieve full mixing of the mixture.

[0046] 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-limiting 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 are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multi-stage stirring device for electronic slurry, comprising a stirring rod and a cylinder, characterized in that: It also includes a rotating plate, an extrusion plate, a driving assembly, and a transmission assembly, wherein an outer rotating shaft is rotatably installed in the cylinder, a plurality of rotating plates are fixedly installed on the outer rotating shaft, an inner rotating shaft is rotatably installed in the outer rotating shaft, the inner rotating shaft and the outer rotating shaft are coaxially arranged, a plurality of extrusion plates are fixedly installed on the inner rotating shaft, a plurality of first through holes and a second through holes are respectively opened on the extrusion plate and the rotating plate, the driving assembly and the transmission assembly are installed on the cylinder, the driving assembly is connected to the outer rotating shaft, the transmission assembly is connected to the inner rotating shaft, the driving assembly and the transmission assembly respectively drive the outer rotating shaft and the inner rotating shaft to rotate, a filter plate is rotatably installed on one end of the outer rotating shaft, the filter plate is detachably connected to the cylinder, a rotating column is rotatably installed on one end of the cylinder away from the rotating plate, and a plurality of stirring rods are fixedly installed on the rotating column.

2. The multi-stage stirring device for electronic slurry according to claim 1, characterized in that: A trapezoidal block is fixedly mounted on one side of the rotating plate away from the outer rotating shaft.

3. The multi-stage stirring device for electronic slurry according to claim 1, characterized in that: The outer rotating shaft is provided with an external thread, and the outer rotating shaft is connected with a sealing plate via the external thread.

4. The multi-stage stirring device for electronic slurry according to claim 3, characterized in that: A sliding block is slidably mounted on the sealing plate, a third spring is connected between the sliding block and the sealing plate, and a flexible scraper is fixedly mounted on the sliding block.

5. The multi-stage stirring device for electronic slurry according to claim 1, characterized in that: A collar is fixedly mounted on one end of the rotating column, a plurality of second wedge-shaped openings are provided on the collar, a first wedge-shaped opening matching with the second wedge-shaped openings is provided on the outer wall of the outer shaft, and one end of the rotating column away from the second wedge-shaped openings is elastically connected to the bottom of the cylinder.

6. The multi-stage stirring device for electronic slurry according to claim 1, characterized in that: The transmission assembly is connected to the driving assembly, and the driving assembly drives the outer rotating shaft to rotate while driving the inner rotating shaft to reciprocate.

7. The multi-stage stirring device for electronic slurry according to claim 6, characterized in that: The driving assembly includes: a motor, a first gear, and a second gear. The motor is fixedly mounted on the cylinder, the output end of the motor is connected to the first gear, and the second gear is fixedly mounted on the outer wall of the outer shaft.

8. The multi-stage stirring device for electronic slurry according to claim 7, characterized in that: The transmission assembly includes: a sliding plate, a first spring, a second fixed tooth, a full gear, a toothless gear, and a first fixed tooth. The sliding plate is elastically mounted on the cylinder, a plurality of first fixed teeth and a plurality of second fixed teeth are arranged on the sliding plate, the first fixed teeth and the second fixed teeth are staggered with each other, a toothless gear and a full gear are fixedly mounted on the first gear and the inner rotating shaft respectively, the toothless gear is intermittently meshed with the first fixed tooth, and the full gear is intermittently meshed with the second fixed tooth.

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