Paint production tool with compound grinding structure

Abstract

The utility model relates to a paint production tool with a compound grinding structure, which comprises a lifting support table, and a transmission component is arranged at the axial upper end of the lifting support table. The power output end of the transmission assembly is in transmission connection with a compound grinding assembly capable of accelerating relative movement between grinding media by constructing a three-stage rotating structure which is connected in a sleeved mode, and the axial lower end of the compound grinding assembly is provided with a stirring assembly which is coaxially connected with the compound grinding assembly. And the compound grinding assembly and the stirring assembly are adjustably inserted into a mixing tank in the lifting support table. According to the utility model, the grinding efficiency and the grinding quality can be improved by arranging a plurality of rotary driving structures which are different in rotation direction and carry out the nested stirring driving areas in the same chamber.

Description

Technical Field

[0001] The utility model relates to the technical field of paint production equipment with high grinding efficiency, in particular to a paint production tool with a compound grinding structure. Background Art

[0002] Basket sand mill is a kind of high-efficiency grinding equipment used in the coating industry, with the characteristics of energy saving, high efficiency, easy operation and maintenance. The basket lifting sand mill is composed of an electrical cabinet, a rotating shaft, a grinder, a pump blade, a dispersion disc and a grinding basket. The grinding basket fixed on the rotating shaft is filled with high-strength grinding media. When working, the grinding basket is immersed in the slurry, and the stirring rod in the grinding basket moves at a high speed, generating a strong suction force, sucking the slurry into the basket with the grinding body for dispersion and grinding. The grinding media commonly used in this type of equipment are generally divided into zirconia beads, glass beads, zirconium silicate beads, etc.

[0003] During operation, the shaft and the grinder, pump blades, and dispersion disc on the shaft rotate at high speed. The grinder drives the grinding medium to produce strong shear and collision with the material, thereby achieving the effect of grinding the material and dispersing the aggregates.

[0004] Existing basket sand mills usually only use a built-in rotating shaft to drive a single stirring rod on the central axis to stir, thereby forcing the grinding media to collide with each other and squeeze the material, so that a certain intensity of shearing action is generated between the material and the grinding medium to achieve grinding of the material. This single driving method has a small driving force action area and low grinding efficiency. Although the rotation speed of the stirring rod can be increased by increasing the rotation speed, the relative movement and collision between the grinding media can be increased, thereby enhancing the squeezing and collision grinding effect of the paint between the beads defined by the grinding media. However, an excessively high rotation speed can easily cause the transmission structure to be damaged by collision due to the obstruction of internal structures such as the grinding media, especially the one-way rotation drive of the central stirring structure, which cannot effectively drive the grinding media in the entire basket body, the collision degree is poor, the transmission collision range is limited, and the shear force is small, which cannot improve the grinding effect and efficiency. Utility Model Content

[0005] The utility model aims to provide a paint production tool with a compound grinding structure, which can improve the grinding efficiency and quality by arranging multiple overlapping rotary drive structures with different rotation directions and stirring drive areas in the same chamber, so as to solve the problem that the existing basket-type paint grinding equipment can only stir the grinding medium through a single and unidirectional rotary drive stirring structure, resulting in poor relative movement ability of the grinding medium, poor impact degree and inability to provide sufficient extrusion and shearing force, thereby failing to grind the paint efficiently and with high quality.

[0006] The technical solution adopted by the utility model is: a paint production tool with a compound grinding structure, including a lifting support platform, the axial upper end of the lifting support platform is provided with a transmission assembly, the power output end of the transmission assembly is transmission-connected with a compound grinding assembly that can accelerate the relative movement between grinding media by constructing a three-stage rotating structure that is connected to each other, and the axial lower end of the compound grinding assembly is provided with a stirring assembly coaxially connected thereto; the compound grinding assembly and the stirring assembly can be adjustably inserted into a mixing tank placed in the lifting support platform.

[0007] According to a preferred embodiment, the compound grinding assembly includes a central grinding drive mechanism, an annular grinding drive mechanism, a rotating receiving basket and a limiting sleeve, wherein the central grinding drive mechanism is transmission-connected to the first driving mechanism of the transmission assembly, and the outer side of the central grinding drive mechanism is sleeved with a limiting sleeve which cooperates with it to limit the linkage installation position of the annular grinding drive mechanism; the outer side of the limiting sleeve is also provided with the rotating receiving basket which is transmission-connected to the second driving mechanism of the transmission assembly.

[0008] According to a preferred embodiment, the central grinding drive mechanism includes a central rotating shaft, a limit driving tooth, a downward turbine and a grinding driving rod. The axial upper end of the central rotating shaft is transmission-connected with the first driving mechanism, and the limit driving tooth, the downward turbine and the grinding driving rod are sequentially connected to the rod body in sections. A plurality of the grinding driving rods are installed on the rod body in which the central rotating shaft is located in the basket body of the rotating supporting basket in a multi-layer and circumferential manner.

[0009] According to a preferred embodiment, rotating teeth are arranged on the secondary shaft of the annular grinding drive mechanism in a manner that meshes with the limit drive teeth, and a plurality of the secondary shafts are arranged circumferentially and spaced apart to surround the rotating teeth; the secondary shaft is placed on an axially lower rod body in the basket body and is also provided with secondary rods that are axially staggered with the grinding drive rods.

[0010] According to a preferred embodiment, the rotating receiving basket includes a hollow ring tooth, a connecting column and the basket body, which is rotatably mounted on the bottom surface of the shell of the transmission assembly and is transmission-connected to the second driving mechanism, wherein the hollow ring tooth is connected to the basket body by the connecting column which is spaced apart and connected to its lower surface and is parallel to the central rotating axis.

[0011] According to a preferred embodiment, the limiting sleeve includes a cylinder inserted into the hollow ring tooth and connected to the surface of the shell, an internal gear ring arranged in the cylinder and cooperating with the limiting drive tooth to limit the meshing transmission state of the rotating tooth, and a supporting ring plate arranged below the internal gear ring to support the rotating tooth.

[0012] According to a preferred embodiment, the axial upper end opening of the basket body is also detachably and rotatably connected to a baffle, wherein the annular baffle of the baffle is connected to a positioning shaft rotatably sleeved on the central shaft through circumferentially spaced connecting cross bars; a feed sleeve matching the downward turbine is provided on the inner circle upper edge of the annular baffle; and a plurality of through holes corresponding to the insertion positions of the secondary shaft are also provided on the annular baffle at annular intervals.

[0013] According to a preferred embodiment, a plurality of rows of grinding protrusions are arranged on the inner side wall of the basket body, wherein two adjacent rows of the grinding protrusions are staggered, and a first blocking net capable of intercepting the grinding medium and discharging only the ground paint is arranged at the bottom of the basket body.

[0014] According to a preferred embodiment, the axial lower end of the central rotating shaft passes through the first blocking net and is connected to the stirring assembly; the sleeve head of the stirring assembly is detachably connected to the end of the rod body of the central rotating shaft, and stirring cross bars are inserted into the side of the sleeve head at circumferential intervals, and stirring blades are staggered on the upper and lower sides of the stirring cross bar.

[0015] According to a preferred embodiment, the lower end of the basket body is also connected to an upward turbine via a vertical rod.

[0016] The beneficial effects of the utility model are:

[0017] The transmission assembly provided in the present application provides two rotational driving forces by constructing a dual-position drive structure to rotationally drive different mechanisms of the compound grinding assembly to accelerate the relative movement and collision of the grinding media, thereby accelerating the grinding of the paint. The compound grinding assembly provided in the present application can be mutually inserted and sleeved by the multiple rotatable mechanisms arranged in layers, so that the rotatable mechanisms can effectively drive the grinding media in the limited space to fully move relative to each other and collide effectively by rotating in opposite directions, so that the grinding media can fully squeeze the paint and provide a large shearing force, so as to effectively and fully grind the paint.

[0018] The central grinding drive mechanism and the rotating holding basket rotate in the same direction or in the opposite direction, thereby protecting the stability and integrity of the rotating structure within a relatively suitable rotation rate range while accelerating the relative movement of the grinding media, thereby increasing the collision strength of the grinding media and the magnitude of the shear force provided. The central grinding drive mechanism further drives the annular grinding drive mechanism meshed with its gear to rotate in the opposite direction of its rotation by transmission, so that the annular grinding drive mechanism drives the grinding media in the stirring gap area of ​​the central grinding drive mechanism to increase the fullness of the movement of the grinding media, so that all the grinding media in the entire basket can be effectively displaced under the rotation drive of the central grinding drive mechanism, the annular grinding drive mechanism and the rotating holding basket, so that all the grinding media can squeeze and shear the paint flowing in the gap on their surface to achieve full and effective grinding. The central grinding drive mechanism, the annular grinding drive mechanism and the rotating holding basket can rotate simultaneously, so that multiple stirrings with different rotation directions are formed on the cross section, so as to effectively push the grinding media in the entire chamber, promote more effective and faster relative movement between the grinding media, and accelerate the collision strength and collision rate between the grinding media. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a preferred paint production tooling with a compound grinding structure proposed by the utility model;

[0020] Figure 2 It is a partial structural schematic diagram of a compound grinding assembly of a paint production tooling with a compound grinding structure proposed by the utility model;

[0021] Figure 3 The utility model proposes a preferred paint production tooling with a compound grinding structure. Guardrail Schematic diagram of the plane;

[0022] Figure 4 It is a plan view of a clamping structure of a lifting support platform of a paint production tooling with a preferred compound grinding structure proposed by the utility model.

[0023] Reference numerals list

[0024] 1: lifting support platform; 2: transmission assembly; 3: compound grinding assembly; 4: stirring assembly; 5: mixing tank; 11: base; 12: lifting column; 13: support plate; 14: adjusting screw; 15: positioning arc plate; 21: shell; 22: first drive mechanism; 23: second drive mechanism; 31: central grinding drive mechanism; 32: ring grinding drive mechanism; 33: rotating loading basket; 34: limiting sleeve; 41: sleeve head; 42: stirring cross bar; 43: stirring blade; 311: central rotating shaft; 312: limiting driving tooth; 313: Downward turbine; 314: Grinding drive rod; 321: Auxiliary shaft; 322: Rotating teeth; 323: Auxiliary rod; 331: Hollow ring teeth; 332: Connecting column; 333: Basket body; 334: Baffle; 335: Vertical rod; 336: Upward turbine; 341: Cylinder body; 342: Inner gear ring; 343: Supporting ring plate; 3331: Grinding protrusion; 3332: First baffle; 3341: Annular baffle; 3342: Connecting cross bar; 3343: Positioning shaft; 3344: Feed sleeve; 3345: Through hole. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be briefly introduced below in combination with the drawings and the descriptions of the embodiments or the prior art. Obviously, the following descriptions of the structures of the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] The technical solution provided by the present invention will be described in detail below by way of examples with reference to the accompanying drawings. It should be noted that the description of these examples is used to help understand the present invention, but does not constitute a limitation of the present invention. In some examples, some implementation methods are not described or are not described in detail because they belong to existing or conventional technologies.

[0027] In addition, the technical features recorded in this article, or the steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can also be combined in any suitable manner in one or more embodiments. For those skilled in the art, it is easy to understand that the steps or operation sequence of the methods related to the embodiments provided herein can also be changed. Any order in the drawings and embodiments is only for illustrative purposes and does not imply a requirement to follow a certain order unless it is explicitly stated that a certain order is required.

[0028] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, under reasonable circumstances (not constituting a self-contradiction), include direct and indirect connections (couplings).

[0029] The following is a detailed description with reference to the accompanying drawings.

[0030] Example 1

[0031] The present application provides a paint production tool with a compound grinding structure, which includes a lifting support platform 1, a transmission component 2, a compound grinding component 3, a stirring component 4 and a mixing tank 5.

[0032] According to Figure 1-4 In a specific embodiment shown, a transmission assembly 2 is provided at the axial upper end of the lifting support platform 1. The power output end of the transmission assembly 2 is connected to a compound grinding assembly 3 that can accelerate the relative movement between the grinding media by constructing a three-stage rotating structure that is connected to each other. The axial lower end of the compound grinding assembly 3 is provided with a stirring assembly 4 coaxially connected thereto. The compound grinding assembly 3 and the stirring assembly 4 are adjustably inserted into a mixing tank 5 placed in the lifting support platform 1. The transmission assembly 2 provided in the present application provides two rotational driving forces by constructing a double-position drive structure to rotationally drive different mechanisms of the compound grinding assembly 3 to accelerate the relative movement and collision of the grinding media, thereby accelerating the grinding of the paint. The compound grinding assembly 3 provided in the present application can be mutually inserted through the multiple rotatable mechanisms arranged in layers, so that the rotatable mechanisms can effectively drive the grinding media in the limited space to fully move relative to each other and collide effectively by rotating in opposite directions, so that the grinding media can fully squeeze the paint and provide a large shearing force, so as to effectively and fully grind the paint.

[0033] Preferably, the lifting support platform 1 includes a base 11, a lifting column 12, a support plate 13, an adjusting screw 14 and a positioning arc plate 15. Preferably, the lifting column 12 and the support plate 13 are supported in partitions on the base 11. The axial upper end of the lifting column 12 is connected to the housing 21 of the transmission assembly 2. Further preferably, the two support plates 13 are arranged in opposition. Preferably, the support plate 13 is connected to the positioning arc plate 15 by an adjusting screw 14 threaded through the plate body thereof. Specifically, the positioning arc plates 15 respectively connected to the adjusting screws 14 inserted on different support plates 13 are arranged opposite to each other, and the arc surfaces defined by them are opposite to each other on both sides of the mixing tank 5, so that the distance between the two positioning arc plates 15 can be changed by screwing the adjusting screw 14, so that the two positioning arc plates 15 arranged in opposition can effectively clamp the mixing tank 5. Further preferably, the adjusting screw 14 is rotatably connected to the positioning arc plate 15 via a rotary bearing, so that the rotation of the adjusting screw 14 does not limit the positioning arc plate 15 to rotate synchronously therewith, so that the positioning arc plate 15 can be against the side of the mixing tank 5 in a manner that fits the side wall contour of the mixing tank 5.

[0034] Preferably, the transmission assembly 2 includes a housing 21, a first drive mechanism 22, and a second drive mechanism 23. Further preferably, the first drive mechanism 22 includes a first rotary drive motor, a first transmission chain, and a first transmission tooth. Further preferably, the second drive mechanism 22 includes a second rotary drive motor, a second transmission chain, and a second transmission tooth. The first drive mechanism 22 and the second drive mechanism 23 are both arranged inside the housing 21, and the two can be adjusted to rotate in the same direction at the same frequency, rotate in the same direction at different frequencies, rotate in different directions at the same frequency, or rotate in different directions at different frequencies, so as to provide different relative rotation driving forces to the central grinding drive mechanism 31, the annular grinding drive mechanism 32, and the rotating holding basket 33.

[0035] Preferably, the compound grinding assembly 3 includes a central grinding drive mechanism 31, an annular grinding drive mechanism 32, a rotating holding basket 33 and a limiting sleeve 34. Preferably, the central grinding drive mechanism 31 is connected to the first driving mechanism 22 of the transmission assembly 2. Preferably, the outer side of the central grinding drive mechanism 31 is sleeved with a limiting sleeve 34 that cooperates with it to limit the linkage installation position of the annular grinding drive mechanism 32. Preferably, the outer side of the limiting sleeve 34 is also provided with a rotating holding basket 33 that is connected to the second driving mechanism 23 of the transmission assembly 2. The first driving mechanism 22 and the second driving mechanism 23 can respectively drive the central grinding drive mechanism 31 and the rotating holding basket 33 to rotate, so that the central grinding drive mechanism 31 and the rotating holding basket 33 rotate in the same direction or in the opposite direction, thereby protecting the stability and integrity of the rotating structure within a relatively suitable rotation rate range while accelerating the relative movement of the grinding medium, thereby increasing the collision strength of the grinding medium and the magnitude of the shearing force provided. The central grinding drive mechanism 31 further drives the annular grinding drive mechanism 32 meshing with its gear to rotate in the opposite direction of its rotation, so that the annular grinding drive mechanism 32 drives the grinding media in the stirring gap area of ​​the central grinding drive mechanism 31 to improve the movement of the grinding media, so that all the grinding media in the entire basket body 333 can be effectively displaced under the rotation drive of the central grinding drive mechanism 31, the annular grinding drive mechanism 32 and the rotating holding basket 33, so that all the grinding media can squeeze and shear the paint flowing in the gap on their surface to achieve full and effective grinding. The central grinding drive mechanism 31, the annular grinding drive mechanism 32 and the rotating holding basket 33 can rotate at the same time, so that multiple stirrings with different rotation directions are formed on the cross section, so as to effectively push the grinding media in the entire chamber, promote more effective and faster relative movement between the grinding media, and accelerate the collision intensity and collision rate between the grinding media.

[0036] Preferably, the central grinding drive mechanism 31 comprises a central rotating shaft 311, a limit driving tooth 312, a downward turbine 313 and a grinding driving rod 314. Preferably, the axial upper end of the central rotating shaft 311 is drivingly connected with the first driving mechanism 22. Further preferably, the limit driving tooth 312, the downward turbine 313 and the grinding driving rod 314 are sequentially connected in sections on the rod body of the central rotating shaft 311. Preferably, a plurality of grinding driving rods 314 are installed on the rod body of the central rotating shaft 311 in the basket body 333 of the rotating holding basket 33 in a multi-layer spacing and circumferential spacing manner. Preferably, a rotating tooth 322 is provided on the secondary shaft 321 of the ring-arranged grinding drive mechanism 32 in a manner of meshing with the limit driving tooth 312. Preferably, a plurality of secondary shafts 321 surround the rotating tooth 322 in a manner of circumferential spacing. Preferably, the secondary shaft 321 is placed on the axial lower section of the basket body 333 and is also provided with a secondary rod 323 that is axially displaced with the grinding drive rod 314. The central rotating shaft 311 provided in the present application drives the grinding drive rod 314 to rotate and push the grinding medium to move. In the process, the secondary shaft 321 arranged in an annular space and parallel to each other can also be driven to rotate through the limited driving teeth 312 and the rotating teeth 322 that are engaged in transmission, so that the secondary rod 323 can drive the grinding medium in the gap space between the layered grinding drive rods 314, thereby accelerating the relative movement of the grinding medium and the sufficiency of the grinding medium movement. The downward turbine 313 provided in the present application can rotate synchronously with the central rotating shaft 311 to generate a directional vortex driving force to drive the paint in the mixing tank 5 to enter the basket body 333 under the action of the directional traction force, so that the paint is ground by the grinding medium. The central shaft 311 and the auxiliary rod 323 can rotate in opposite directions during the transmission process, so that the layered and staggered grinding drive rod 314 and the auxiliary rod 323 can make the grinding media in different layer intervals move in opposite directions, thereby accelerating the relative movement between the grinding media to increase the collision intensity and collision rate, and further accelerating the grinding efficiency of the paint.

[0037] Preferably, the rotating holding basket 33 comprises a hollow ring gear 331, a connecting column 332 and a basket body 333 which are rotatably mounted on the bottom surface of the housing 21 of the transmission assembly 2 and are transmission-connected to the second driving mechanism 23. Preferably, the hollow ring gear 331 is connected to the basket body 333 through a connecting column 332 which is spaced and connected to its lower surface and parallel to the central rotating shaft 311. Preferably, the axial upper end opening of the basket body 333 is also detachably and rotationally connected with a baffle 334. Preferably, the lower end of the basket body 333 is also connected to an upper roll turbine 336 through a vertical rod 335. Further preferably, a plurality of rows of grinding protrusions 3331 are provided on the inner side wall of the basket body 333, and specifically, two adjacent rows of grinding protrusions 3331 are staggered. The bottom of the basket body 333 is provided with a first blocking net 3332 which can intercept the grinding medium and only discharge the ground paint. Preferably, the annular baffle 3341 of the baffle 334 is connected to the positioning shaft 3343 rotatably sleeved on the central shaft 311 through the connecting crossbar 3342 arranged at intervals in the circumferential direction. Preferably, a feed sleeve 3344 matching the downward turbine 313 is provided on the inner circle upper edge of the annular baffle 3341. Further preferably, a plurality of through holes 3345 corresponding to the insertion positions of the secondary shaft 321 are also provided at annular intervals on the annular baffle 3341. The rotating holding basket 33 and the grinding protrusion 3331 on the inner wall thereof provided in the present application can rotate synchronously under the drive of the second driving mechanism 23, so that the grinding medium is also pushed by the rotation of the basket body 333 when being stirred in multiple directions of action in the basket body 333, so that a relative movement with a greater amplitude and speed can occur between the three rotating mechanisms to accelerate the rotation of the grinding medium. The baffle 334 provided in the present application can effectively cover the opening of the basket 333, and the feed sleeve 3344 can construct a lumen channel, so that the downward turbine 313 can more effectively pull the paint to be directed into the basket 333. The upward turbine 336 provided in the present application can pull the precipitated paint that may exist in the mixing tank 5 to rise, so as to facilitate better mixing of the paint and accelerate the large particles of paint to float up and be further pulled into the basket 333 by the downward turbine 313, so as to achieve effective grinding.

[0038] Preferably, the limiting sleeve 34 includes a cylinder 341 inserted into the hollow ring teeth 331 and connected to the surface of the housing 21, an inner gear ring 342 disposed in the cylinder 341 and cooperating with the limiting drive teeth 312 to limit the meshing transmission state of the rotating teeth 322, and a supporting ring plate 343 disposed below the inner gear ring 342 to support the rotating teeth 322. The limiting sleeve 34 provided in the present application can effectively and flexibly support the height of the rotating teeth 322 while assisting in limiting the meshing state between the limiting drive teeth 312 and the rotating teeth 322, so as to provide effective auxiliary support force for the ring-mounted grinding drive mechanism 32.

[0039] Preferably, the axial lower end of the central rotating shaft 311 passes through the first blocking net 3332 and is connected to the stirring assembly 4. Preferably, the sleeve head 41 of the stirring assembly 4 is detachably connected to the end of the rod body of the central rotating shaft 311. Preferably, stirring cross bars 42 are inserted at intervals in an annular direction on the side of the sleeve head 41. Further preferably, stirring blades 43 are staggered on the upper and lower sides of the stirring cross bar 42. The stirring assembly 4 provided in the present application can disperse and stir the ground paint to improve the uniformity of the paint mixing.

[0040] The present utility model is not limited to the above optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope of the claims of the present utility model fall within the protection scope of the present utility model. Those skilled in the art should understand that the present utility model specification and its drawings are illustrative and do not constitute limitations on the claims. The protection scope of the present utility model is defined by the claims and their equivalents. Throughout the text, the features guided by "preferably" are only an optional method and should not be understood as having to be set. Therefore, the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A paint production tool with a compound grinding structure, comprising a lifting support platform (1), characterized in that: A transmission assembly (2) is provided at the axial upper end of the lifting support platform (1). The power output end of the transmission assembly (2) is transmission-connected to a compound grinding assembly (3) capable of accelerating the relative movement between grinding media by constructing a three-stage rotating structure that is connected to each other, and the axial lower end of the compound grinding assembly (3) is provided with a stirring assembly (4) coaxially connected thereto; The compound grinding assembly (3) comprises a central grinding drive mechanism (31), an annular grinding drive mechanism (32), a rotating receiving basket (33) and a limiting sleeve (34), wherein: The central grinding drive mechanism (31) is drivingly connected to the first drive mechanism (22) of the transmission assembly (2), and a limiting sleeve (34) is sleeved on the outer side of the central grinding drive mechanism (31) and cooperates with the central grinding drive mechanism (31) to limit the linkage installation position of the annular grinding drive mechanism (32); The outer side of the limiting sleeve (34) is also provided with the rotating receiving basket (33) which is transmission-connected to the second driving mechanism (23) of the transmission assembly (2); The compound grinding assembly (3) and the stirring assembly (4) are adjustably inserted into a mixing tank (5) mounted on the lifting support platform (1).

2. The paint production tooling with a compound grinding structure as claimed in claim 1, characterized in that: The central grinding drive mechanism (31) comprises a central rotating shaft (311), a limit driving tooth (312), a downward turbine (313) and a grinding driving rod (314). The axial upper end of the central rotating shaft (311) is connected to the first driving mechanism (22) in a transmission manner, and the rod body thereof is sequentially connected to the limit driving teeth (312), the downward turbine (313) and the grinding driving rod (314) in sections. A plurality of the grinding driving rods (314) are installed on a rod body of the central rotating shaft (311) in a basket body (333) of the rotating receiving basket (33) in a multi-layer spacing and circumferential spacing manner.

3. The paint production tooling with compound grinding structure as claimed in claim 2, characterized in that: A rotating tooth (322) is provided on the secondary shaft (321) of the ring-mounted grinding drive mechanism (32) in a manner of meshing with the limit drive tooth (312), and a plurality of the secondary shafts (321) are arranged circumferentially and spaced apart to surround the rotating tooth (322); The auxiliary shaft (321) is placed on the axial lower section of the rod body in the basket body (333), and is also provided with an auxiliary rod (323) which is staggered in the axial direction with the grinding driving rod (314).

4. The paint production tooling with a compound grinding structure as claimed in claim 3, characterized in that: The rotating receiving basket (33) comprises a hollow ring tooth (331) rotatably mounted on the bottom surface of the housing (21) of the transmission assembly (2) and transmission-connected to the second driving mechanism (23), a connecting column (332) and the basket body (333), wherein: The hollow ring gear (331) is connected to the basket body (333) via the connecting column (332) which is connected to its lower surface at intervals and is parallel to the central rotating shaft (311).

5. The paint production tooling with a compound grinding structure as claimed in claim 4, characterized in that: The limiting sleeve (34) comprises a cylinder (341) inserted into the hollow ring tooth (331) and connected to the surface of the shell (21), an inner tooth ring (342) arranged in the cylinder (341) and cooperating with the limiting drive tooth (312) to limit the meshing transmission state of the rotating tooth (322), and a supporting ring plate (343) arranged below the inner tooth ring (342) to support the rotating tooth (322).

6. The paint production tooling with compound grinding structure as claimed in claim 5, characterized in that: The axial upper end opening of the basket body (333) is also detachably and rotatably connected to a baffle plate (334), wherein: The annular baffle (3341) of the baffle (334) is connected to a positioning shaft (3343) rotatably sleeved on the central shaft (311) via connecting cross bars (3342) arranged at intervals in the circumferential direction; The inner circle upper edge of the annular baffle (3341) is provided with a feed sleeve (3344) matching the downward turbine (313); A plurality of through holes (3345) corresponding to the insertion positions of the secondary shaft (321) are also provided in an annular manner and spaced apart on the annular baffle (3341).

7. The paint production tooling with a compound grinding structure as claimed in claim 6, characterized in that: A plurality of rows of grinding protrusions (3331) are arranged on the inner side wall of the basket body (333), wherein two adjacent rows of the grinding protrusions (3331) are staggeredly distributed, and a first blocking net (3332) is arranged at the bottom of the basket body (333).

8. The paint production tooling with a compound grinding structure as claimed in claim 7, characterized in that: The axial lower end of the central rotating shaft (311) passes through the first blocking net (3332) and is connected to the stirring assembly (4); The sleeve head (41) of the stirring assembly (4) is detachably connected to the end of the rod body of the central rotating shaft (311). Stirring cross bars (42) are inserted at intervals in the circumferential direction on the side surface of the sleeve head (41), and stirring blades (43) are staggeredly arranged on the upper and lower sides of the stirring cross bars (42).

9. The paint production tooling with a compound grinding structure as claimed in claim 8, characterized in that: The lower end of the basket body (333) is also connected to an upward turbine (336) via a vertical rod (335).

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