A water-based paint raw material grinding device

Abstract

This utility model discloses a water-based coating raw material grinding device, relating to the field of coating processing. It includes an outer basket and a servo motor for driving operation. Two suction components, rotatably connected to the two grinding components, are respectively mounted on both sides of the outer basket. The servo motor drives the transmission mechanism to rotate the two grinding components in opposite directions, creating two opposing rotational forces within the mounting cavity. Compared to traditional basket grinders, these two opposing forces drive the grinding media to form intense relative motion, significantly increasing the frequency of collisions and shearing between the media. Furthermore, the reverse impact force breaks the synchronous inertia of rotation in a single direction, allowing each media particle to fully contact the material in dynamic interlacing. This design reduces the problem of insufficient synchronous movement and relative displacement of the media due to unidirectional rotational forces, significantly enhancing grinding intensity, shortening the grinding cycle, and making the material particle size distribution more uniform. It effectively solves pain points such as insufficient grinding and low efficiency.

Description

Technical Field

[0001] This utility model relates to the field of coating processing, and in particular to a grinding device for water-based coating raw materials. Background Technology

[0002] In the field of material grinding and processing, basket mills are widely used in the material refining process of industries such as coatings, inks, pigments, and adhesives due to their convenient operation and strong applicability. Traditional basket mills usually use a single drive source to drive the stirring components or grinding parts in the grinding basket to rotate in one direction. The rotation of the grinding parts drives the grinding media, such as steel balls or ceramic balls, to collide, shear, and rub against the material to be ground, thereby achieving the crushing and refining of the material.

[0003] This traditional structural design has certain limitations. Relying solely on rotational force in one direction, the grinding media are easily affected by inertial forces in the same direction during movement. They tend to move synchronously with the rotation direction of the grinding components. This results in a small relative displacement between the grinding media, a low frequency of collisions and shearing, and a large amount of media exhibiting an overall unidirectional flow state during movement, making it difficult to form intense relative motion. Meanwhile, because the rotational force is unidirectional, the material in the grinding basket is also prone to flow synchronously with the medium, resulting in insufficient contact between some materials and the grinding medium. This is especially true in the edge area of ​​the grinding basket or in areas where the medium movement is relatively gentle, which can easily lead to incomplete grinding of materials and uneven particle size distribution. Utility Model Content

[0004] The purpose of this utility model is to provide a water-based coating raw material grinding device in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a water-based coating raw material grinding device, comprising an outer basket and a servo motor for driving operation, wherein an installation cavity is provided inside the outer basket, a transmission mechanism is provided in the middle of the inner side of the installation cavity, a discharge component is provided outside the transmission mechanism, and two grinding components connected to the discharge component are symmetrically arranged on the inner side of the outer basket away from the middle, and both grinding components rotate with the discharge component. The servo motor drives the transmission mechanism to drive the two grinding components to rotate in opposite directions. Two suction components connected to the two grinding components are rotatably installed on both sides of the outer basket.

[0006] As a further description of the above technical solution: the grinding assembly includes two mesh sleeves symmetrically installed on both sides of the inner cavity of the mounting cavity away from the center. Two rotating components are rotatably installed on the inner side of the two mesh sleeves respectively, and a transmission rod is installed through the inner axis of each of the two rotating components.

[0007] As a further description of the above technical solution: several filter screens are respectively installed through a snap-fit ​​annular array on the outer surface of the two rotating components, and several stirring heads that intersect with the several filter screens are respectively installed at equal intervals on the outer surface of the two rotating components.

[0008] As a further description of the above technical solution: the discharge assembly includes a connecting sleeve rotatably connected between two rotating components. The inner side of the connecting sleeve is connected to the inner side of the two rotating components. A plurality of discharge pipes are installed in a ring array on the outer side of the connecting sleeve. The ends of the plurality of discharge pipes away from the connecting sleeve all extend outward through the outer basket.

[0009] As a further description of the above technical solution: the transmission mechanism includes a mounting base fixedly installed at the shaft center of the connecting sleeve, two bevel gears 1 are rotatably installed on the inner side of the mounting base, and a bevel gear 2 that meshes with the two bevel gears 1 is rotatably installed at the upper end of the inner cavity of the mounting base. The rotation shaft of the bevel gear 2 is fixedly connected to the output shaft of the servo motor through a coupling, and the rotation shafts of the two bevel gears 1 are fixedly connected to two transmission rods respectively.

[0010] As a further description of the above technical solution: the suction assembly includes conical grooves opened at both ends of the outer basket, and two turbines are rotatably arranged inside the two conical grooves respectively. The ends of the two transmission rods away from the two bevel gears pass through the two conical grooves respectively and are fixedly connected to the shaft center of the two turbines.

[0011] As a further description of the above technical solution: each of the two conical grooves has a narrow slit that communicates with the mounting cavity on its inner side.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: The servo motor drives the transmission mechanism to rotate the two grinding components in opposite directions, creating two opposing rotational forces within the mounting cavity. Compared to traditional basket grinders, these opposing forces drive the grinding media to form intense relative motion, significantly increasing the frequency of collisions and shearing between the media. Furthermore, the reverse impact force breaks the synchronous inertia of rotation in a single direction, allowing each media particle to fully contact the material in a dynamic interlacing process. This design reduces the problem of insufficient relative displacement and synchronous movement of the media caused by the same rotational force in traditional models, thereby significantly enhancing the grinding force, shortening the grinding cycle, and making the material particle size distribution more uniform. It effectively solves the pain points of insufficient grinding and low efficiency. Meanwhile, during operation, the grinding components will also drive the suction components on both sides of the outer basket to rotate at high speed. Utilizing the strong negative pressure effect generated by the high-speed rotation of the suction components, the surrounding materials to be ground are quickly and continuously sucked into the installation cavity, ensuring that the materials can participate in the grinding process in a timely manner, further improving the continuity and overall efficiency of grinding. Attached Figure Description

[0013] Figure 1 This is a side elevation view of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall side elevation cross-sectional structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional connection structure of the outer basket, grinding component and suction component in this utility model; Figure 4 This is a cross-sectional connection diagram of the transmission mechanism and the discharge assembly in this utility model.

[0014] Legend: 1. Outer basket; 2. Mounting cavity; 3. Transmission mechanism; 31. Mounting base; 32. Bevel gear one; 33. Bevel gear two; 4. Grinding assembly; 41. Rotating kit; 42. Filter screen; 43. Stirring paddle head; 44. Dense mesh partition; 45. Transmission rod; 5. Discharge assembly; 51. Connecting sleeve; 52. Discharge pipe; 6. Suction assembly; 61. Conical groove; 62. Narrow slit; 63. Turbine; 7. Servo motor. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figure 1 - Figure 2 As shown, the present invention provides a water-based coating raw material grinding device, including an outer basket 1 and a servo motor 7 for driving operation. An installation cavity 2 is provided inside the outer basket 1. A transmission mechanism 3 is provided in the middle of the inner side of the installation cavity 2. A discharge component 5 is provided outside the transmission mechanism 3. Two grinding components 4 connected to the discharge component 5 are symmetrically arranged on the inner side of the outer basket 1 away from the middle. Both grinding components 4 rotate with the discharge component 5. The servo motor 7 drives the transmission mechanism 3 to drive the two grinding components 4 to rotate in opposite directions. Two suction components 6 are rotatably installed on both sides of the outer basket 1 and are connected to the two grinding components 4 for transmission.

[0017] During the grinding process, the servo motor 7 drives the transmission mechanism 3 to drive the two grinding components 4 to form a reverse rotational force in the mounting cavity 2, which causes the grinding media to move violently relative to each other, increases the frequency of collision and shearing, breaks the synchronous inertia, reduces the problem of synchronous movement of the media, enhances the grinding force, shortens the cycle and makes the particle size more uniform. At the same time, the grinding component 4 drives the suction components 6 on both sides of the outer basket 1 to rotate at high speed to generate strong negative pressure, continuously sucking in the material to be ground. The ground and sieved material is discharged from the inside of the grinding component 4 through the discharge component 5. In this way, the material is sucked in by the suction component 6, the grinding component 4 drives the media to grind the material, and the material is discharged by the discharge component 5. This reciprocating process improves the continuity and efficiency of grinding.

[0018] Specifically, such as Figure 2 and Figure 3 As shown, the grinding assembly 4 includes two mesh sleeves 44 symmetrically installed on both sides of the inner cavity of the mounting cavity 2 away from the center. Two rotating components 41 are rotatably installed on the inner side of the two mesh sleeves 44 respectively. A transmission rod 45 is installed through the inner axis of each of the two rotating components 41. The outer surfaces of the two rotating components 41 are each fitted with a number of filter screens 42 through a snap-fit ​​ring array. The outer surfaces of the two rotating components 41 are each fitted with a number of stirring paddle heads 43 that intersect with the number of filter screens 42 at equal intervals. The transmission mechanism 3 drives two rotating components 41 to rotate in opposite directions at high speed. When the rotating components 41 rotate, the medium and raw materials are stirred at high speed by several stirring paddles 43 on their outer surface. This causes the materials to be impacted, sheared and ground, so as to achieve the effect of refining particles and dispersing agglomerates. Since the two rotating components 41 rotate in opposite directions, they drive the grinding media to form a violent relative motion. This not only greatly increases the frequency of collisions and shearing between the media, but also creates two opposing forces within the mounting cavity 2 that drive the grinding media to form a violent relative motion. This not only greatly increases the frequency of collisions and shearing between the media, but also ensures that each media particle can fully contact the material in a dynamic interlacing process. This reduces the problem of insufficient relative displacement caused by synchronous movement of the media, thereby significantly enhancing the grinding force, shortening the grinding cycle, and making the particle size distribution of the material more uniform. When the stirring head 43 is agitated, the material causes the grinding media to collide with the inner wall of the mounting cavity 2 due to centrifugal force. This minimizes the impact of the grinding media on the filter screen 42, extends the service life of the filter screen 42, and avoids the risk of the media getting stuck in the filter screen 42 pores due to impact.

[0019] After grinding, the material flows into the rotating assembly 41 through the filter screen 42 and is discharged outward through the discharge component 5.

[0020] Furthermore, such as Figure 4As shown, the transmission mechanism 3 includes a mounting base 31 fixedly installed at the shaft center of the connecting sleeve 51. Two bevel gears 32 are rotatably installed on the inner side of the mounting base 31. A bevel gear 33 meshing with the two bevel gears 32 is rotatably installed at the upper end of the inner cavity of the mounting base 31. The rotating shaft of the bevel gear 33 is fixedly connected to the output shaft of the servo motor 7 through a coupling. The rotating shafts of the two bevel gears 32 are fixedly connected to the two transmission rods 45 respectively. Start the servo motor 7. The output shaft of the servo motor 7 drives the second bevel gear 33 to rotate. The rotation of the second bevel gear 33 drives the two bevel gears 32 meshing with it to rotate in the opposite direction. The high-speed rotation of the two bevel gears 32 drives the two rotating components 41 to rotate in the opposite direction through the two transmission rods 45 respectively.

[0021] Furthermore, such as Figure 2 and Figure 4 As shown, the discharge assembly 5 includes a connecting sleeve 51 rotatably connected between two rotating components 41. The inner side of the connecting sleeve 51 is connected to the inner side of the two rotating components 41. A plurality of discharge pipes 52 are installed in a ring array on the outer side of the connecting sleeve 51. The ends of the plurality of discharge pipes 52 away from the connecting sleeve 51 all extend outward through the outer basket 1. The connecting sleeve 51 is fixed to the inside of the mounting cavity 2 and rotates between the two rotating components 41. When the filtered material in the rotating components 41 enters the connecting sleeve 51, it is discharged to the outside of the mounting cavity 2 through the discharge pipe 52.

[0022] Furthermore, such as Figure 2 and Figure 3 As shown, the suction assembly 6 includes conical grooves 61 opened at both ends of the outer basket 1. Two turbines 63 are rotatably arranged inside the two conical grooves 61 respectively. The ends of the two transmission rods 45 away from the two bevel gears 32 pass through the two conical grooves 61 respectively and are fixedly connected to the shaft center of the two turbines 63. Both conical grooves 61 have narrow slits 62 on their inner sides that communicate with the mounting cavity 2; When the transmission rod 45 rotates, it drives the turbine 63 to rotate at high speed to form a vortex. The high-speed rotating turbine 63 sucks the material on the outside of the outer basket 1 into the mounting cavity 2 for grinding. The conical groove 61 is connected to the mounting cavity 2 through a narrow slit 62. When the fluid material outside the outer basket 1 passes through the narrow slit 62, the cross-sectional area of ​​the channel suddenly decreases while the flow rate of the fluid material remains unchanged. Therefore, the flow velocity of the fluid material will increase accordingly when passing through the narrow slit 62, effectively improving the conveying efficiency.

[0023] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A water-based coating raw material grinding device, comprising an outer basket (1) and a servo motor (7) for driving operation, characterized in that: An installation cavity (2) is provided inside the outer basket (1). A transmission mechanism (3) is provided in the middle of the inner side of the installation cavity (2). A discharge assembly (5) is provided on the outer side of the transmission mechanism (3). Two grinding assemblies (4) connected to the discharge assembly (5) are symmetrically arranged on the inner side of the outer basket (1) away from the middle. Both grinding assemblies (4) rotate with the discharge assembly (5). The servo motor (7) drives the transmission mechanism (3) to drive the two grinding assemblies (4) to rotate in opposite directions. Two suction assemblies (6) connected to the two grinding assemblies (4) are rotatably installed on both sides of the outer basket (1).

2. The water-based coating raw material grinding equipment according to claim 1, characterized in that, The grinding assembly (4) includes two mesh sleeves (44) symmetrically installed on both sides of the inner cavity of the mounting cavity (2) away from the center. Two rotating components (41) are rotatably installed on the inner side of the two mesh sleeves (44). A transmission rod (45) is installed through the inner axis of each of the two rotating components (41).

3. The water-based coating raw material grinding equipment according to claim 2, characterized in that, The outer surfaces of the two rotating components (41) are each fitted with a number of filter screens (42) through a snap-fit ​​ring array. The outer surfaces of the two rotating components (41) are each fitted with a number of stirring paddles (43) that are intersected with the number of filter screens (42).

4. The water-based coating raw material grinding equipment according to claim 3, characterized in that, The discharge assembly (5) includes a connecting sleeve (51) rotatably connected between two rotating components (41). The inner side of the connecting sleeve (51) is connected to the inner side of the two rotating components (41). A plurality of discharge pipes (52) are installed in a ring array on the outer side of the connecting sleeve (51). The ends of the plurality of discharge pipes (52) away from the connecting sleeve (51) all extend outward through the outer basket (1).

5. The water-based coating raw material grinding equipment according to claim 4, characterized in that, The transmission mechanism (3) includes a mounting base (31) fixedly installed at the center of the connecting sleeve (51). Two bevel gears (32) are rotatably installed on the inner side of the mounting base (31). A bevel gear (33) meshing with the two bevel gears (32) is rotatably installed on the upper end of the inner cavity of the mounting base (31). The rotating shaft of the bevel gear (33) is fixedly connected to the output shaft of the servo motor (7) through a coupling. The rotating shafts of the two bevel gears (32) are fixedly connected to two transmission rods (45) respectively.

6. The water-based coating raw material grinding equipment according to claim 5, characterized in that, The suction assembly (6) includes conical grooves (61) at both ends of the outer basket (1). Two turbines (63) are rotatably arranged inside the two conical grooves (61). The ends of the two transmission rods (45) away from the two bevel gears (32) pass through the two conical grooves (61) and are fixedly connected to the shaft center of the two turbines (63).

7. The water-based coating raw material grinding equipment according to claim 6, characterized in that, The inner sides of both conical grooves (61) are provided with narrow slits (62) that communicate with the mounting cavity (2).

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