Grinding equipment for building wall coating production

Abstract

The invention discloses grinding equipment for building wall coating production, and belongs to the technical field of wall coating production. The equipment comprises a grinding cylinder, a grinding roller, a screening cylinder and a plugging plate, the grinding roller is rotationally arranged in the grinding cylinder, the grinding roller is configured to ascend and descend in the grinding cylinder, a grinding gap used for grinding wall coating is formed between the grinding roller and the side wall of the grinding cylinder, and the grinding gap can be adjusted along with ascending and descending changes of the grinding cylinder in the grinding cylinder; the screening barrel is rotatably arranged below the grinding gap, the screening barrel is used for receiving the wall coating ground by the grinding gap, the rotating screening barrel is used for screening the received wall coating, the screening barrel is provided with multiple mesh sizes from top to bottom, and the multiple mesh sizes are used for screening the wall coatings with different particle sizes; and the plugging plate is connected with the grinding roller, and the plugging plate is configured to lift and slide in the screening cylinder. The invention particularly provides grinding equipment for building wall coating production, and the grinding equipment can meet the grinding and screening requirements of wall coatings with different particle sizes.

Description

Technical Field

[0001] The present invention belongs to the technical field of wall paint production, and specifically relates to a grinding device for building wall paint production. Background Art

[0002] Wall paint is used to make the building wall beautiful and clean, and at the same time can also play a role in protecting the building wall and extending the service life of the wall. Before the production of wall paint, various raw materials usually need to be ground into powder form, and this process needs to be completed by a grinding device.

[0003] In production, the paint ingredients with different usage requirements need to be ground into different particle sizes, while the grinding rollers and screening cylinders of the existing grinding devices for building wall paint production are usually fixedly arranged, which is not convenient to adjust the grinding and screening particle sizes of the paint according to specific usage requirements, resulting in limited applicability of the grinding device. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a grinding device for building wall paint production to at least partially solve the problems raised in the above background art.

[0005] The present invention provides the following technical solutions: A grinding device for building wall paint production proposed by the present invention includes: A grinding cylinder, the cross-section of its side wall is trapezoidal in reverse; A grinding roller, rotatably arranged in the grinding cylinder, the cross-section shape of its side wall matches that of the grinding cylinder, the grinding roller is configured to lift in the grinding cylinder, a grinding gap for grinding wall paint is provided between the grinding roller and the side wall of the grinding cylinder, and the grinding gap is adjustable with the lifting of the grinding cylinder in the grinding cylinder; A screening cylinder, rotatably arranged below the grinding gap, the screening cylinder is used to receive the wall paint ground by the grinding gap, and the rotating screening cylinder is used to screen the received wall paint, and the mesh sizes of the screening cylinder are provided in multiple types from top to bottom, and the multiple mesh sizes are used for screening wall paint with different particle sizes; A sealing plate, the sealing plate is connected to the grinding roller, and the sealing plate is configured to lift and slide in the screening cylinder; The sealing plate includes an upper plate and a lower plate, the lower plate is connected to the grinding roller, the screening cylinder and the lower plate are both configured to rotate with the grinding roller, the grinding roller, the lower plate and the screening cylinder rotate synchronously, and a screening working area is formed between the upper plate, the lower plate and the screening cylinder, and the screening working area is adjusted with the sliding of the sealing plate in the screening cylinder.

[0006] Further, a set of rotating shafts are fixedly provided on the lower surfaces of both the grinding roller and the lower plate. A set of rotating cylinders are fixedly provided on both the lower plate and the screening cylinder. Fitting protrusions are provided on the outer surface of the rotating shaft, and fitting grooves are provided on the inner surface of the rotating cylinder. The rotating shaft is slidably engaged in the fitting groove of the rotating cylinder through the fitting protrusion, and the rotating shaft and the rotating cylinder rotate synchronously through the cooperation of the fitting protrusion and the fitting groove.

[0007] Further, in order to further crush the wall paint that does not meet the screening size in the screening working area so that it can meet the screening size, a crushing component is provided between the upper plate and the lower plate. The crushing component includes a crushing shaft and crushing blades. The crushing shaft is rotatably provided on the lower plate, and the crushing blades are fixedly provided on the crushing shaft. A driving cavity is formed in the lower plate, and a crushing motor is fixedly provided in the driving cavity. Multiple groups of the crushing components are provided on the lower plate. One group of the crushing shafts is connected to the output shaft of the crushing motor, and adjacent two groups of the crushing shafts are connected through a belt pulley and a transmission belt.

[0008] Further, an upper protective cylinder is fixedly provided on the lower surface of the grinding cylinder, and a lower protective cylinder is fixedly provided on the circumference of the upper plate. A sliding cavity is formed in the side wall of the lower protective cylinder, and the upper protective cylinder is slidably provided in the sliding cavity. One of the upper protective cylinder and the side wall of the sliding cavity is provided with an anti-rotation protrusion, and the other is provided with an anti-rotation groove. The anti-rotation protrusion is slidably engaged in the anti-rotation groove.

[0009] Further, the upper surface of the upper plate is funnel-shaped, and a blanking groove is formed in the middle of the upper plate. The rotating cylinder provided on the lower plate penetrates through the blanking groove.

[0010] Further, the grinding roller and the lower plate are connected through a height adjustment mechanism. An annular sliding groove is formed on the lower surface of the upper plate, and a load-bearing column is fixedly provided on the upper surface of the lower plate. The upper end of the load-bearing column is slidably engaged in the sliding groove.

[0011] Further, the height adjustment mechanism includes a height adjustment motor and two groups of height adjustment components. A height adjustment cavity is formed in the grinding roller, and the height adjustment motor is fixedly provided in the height adjustment cavity. The height adjustment component includes a height adjustment screw rod and a height adjustment threaded sleeve. The height adjustment screw rod is rotatably provided on the grinding roller and its upper end extends into the height adjustment cavity. The height adjustment threaded sleeve is connected to the height adjustment screw rod through a thread. The lower end of the height adjustment threaded sleeve penetrates through the blanking groove and is connected to the lower plate. The height adjustment screw rod and the output shaft of the height adjustment motor are connected through a belt pulley and a transmission belt.

[0012] Further, a grinding device for the production of architectural wall coatings further includes a collection shell. A support frame is fixedly provided on the lower inner wall of the collection shell. The screening cylinder is rotatably arranged on the support frame through a rotating cylinder. The support frame is used to support the screening cylinder. The bottom wall of the collection shell is arranged in a conical structure, and a discharge groove is formed on the bottom wall of the collection shell.

[0013] Further, a gap adjustment mechanism is provided on the top wall of the collection shell. The gap adjustment mechanism includes a gap adjustment motor, a gap adjustment screw rod, and a gap adjustment push plate. The gap adjustment screw rod is rotatably arranged on the top wall of the collection shell. There are two groups of the gap adjustment screw rods. One group of the gap adjustment screw rods is connected to the output shaft of the gap adjustment motor. The two groups of the gap adjustment screw rods are connected by a belt pulley and a transmission belt. The two ends of the gap adjustment push plate are connected to the two groups of the gap adjustment screw rods through threads. A grinding motor is fixedly provided on the gap adjustment push plate, and the grinding roller is connected to the output shaft of the grinding motor.

[0014] It should be noted that the connection between the belt pulley and the transmission belt involved in this solution is a mature existing technology, so it will not be elaborated in detail in this solution.

[0015] Further, an annular feeding pipe is provided on the top wall of the collection shell. The lower surface of the annular feeding pipe is provided with a plurality of feeding pipes. The feeding pipes penetrate the top wall of the collection shell and are located above the grinding gap, and the feeding pipes are arranged close to the inner wall of the grinding cylinder.

[0016] The beneficial effects achieved by the present invention with the above structure are as follows: By controlling the lifting of the grinding roller in the grinding cylinder, the grinding gap is adjusted to meet the grinding requirements of wall coatings with different particle sizes; and by adjusting the height position of the blocking plate in the screening cylinder, in cooperation with the change of the mesh diameter of the screening cylinder from top to bottom, different grinding particle sizes of wall coatings are screened according to the adjustment of the grinding gap, improving the applicable range of the grinding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is the overall structural schematic diagram of the embodiment of the present invention; Figure 2 is the three-dimensional sectional structural schematic diagram in the main viewing direction of the embodiment of the present invention Figure 1 ; Figure 3 is Figure 2 the partial enlarged view of part A of Figure 4 is Figure 2Partial enlarged view of part B; Figure 5 Schematic three-dimensional sectional structure in the front view direction of the embodiment of the present invention Figure 2 ; Figure 6 is Figure 5 Partial enlarged view of part C of; Figure 7 is Figure 5 Partial enlarged view of part D of; Figure 8 Schematic three-dimensional sectional structure diagram in the side view direction of the embodiment of the present invention; Figure 9 is Figure 8 Partial enlarged view of part E of; Wherein, 1, grinding cylinder, 2, grinding roller, 3, grinding gap, 4, screening cylinder, 5, upper plate, 6, lower plate, 7, rotating shaft, 8, rotating cylinder, 9, fitting protrusion, 10, fitting groove, 11, crushing shaft, 12, crushing blade, 13, driving cavity, 14, crushing motor, 15, upper protective cylinder, 16, lower protective cylinder, 17, sliding cavity, 18, anti-rotation protrusion, 19, anti-rotation groove, 20, blanking groove, 21, height adjustment motor, 22, height adjustment cavity, 23, height adjustment screw rod, 24, height adjustment threaded sleeve, 25, load-bearing column, 26, sliding groove, 27, collection shell, 28, support frame, 29, discharge chute, 30, gap adjustment motor, 31, gap adjustment screw rod, 32, gap adjustment push plate, 33, grinding motor, 34, feeding pipe, 35, blanking pipe. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0019] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0020] This embodiment is an improvement made in view of the technical problem that in the actual production of wall coatings, the paint ingredients with different usage requirements need to be ground into different particle sizes, and the existing grinding equipment for the production of architectural wall coatings is not convenient to adjust the grinding and screening particle sizes of the paint according to specific usage requirements, resulting in limited applicability of the grinding equipment.

[0021] Refer toFigure 1 and Figure 2 The present embodiment provides a grinding device for producing building wall coatings, comprising: The grinding cylinder 1 has a side wall cross-section in the shape of an inverted trapezoid; The grinding roller 2 is rotatably disposed within the grinding cylinder 1. The cross-sectional shape of its side wall matches that of the grinding cylinder 1. The grinding roller 2 is configured to rise and fall within the grinding cylinder 1. A grinding gap 3 for grinding wall paint is provided between the grinding roller 2 and the side wall of the grinding cylinder 1. The grinding gap 3 is adjustable as the grinding cylinder 1 rises and falls within the grinding cylinder 1. The adjustment of the grinding gap 3 satisfies the grinding requirements of different particle sizes of wall paint. During operation, since the side walls of the grinding cylinder 1 and the grinding roller 2 are in a matching inverted trapezoidal structure, the grinding gap 3 decreases when the grinding roller 2 moves downward along the grinding cylinder 1, and smaller particle sizes of wall paint can be ground at this time; the grinding gap increases when the grinding roller 2 moves upward along the grinding cylinder 1, and larger particle sizes of wall paint can be ground at this time; and the inverted trapezoidal structure can better achieve the falling of the ground wall paint; The screening drum 4 is rotatably arranged below the grinding gap 3. The screening drum 4 is used to receive the wall paint ground in the grinding gap 3. The rotating screening drum 4 is used to screen the received wall paint. The mesh sizes of the screening drum 4 are arranged in a variety from top to bottom. The various mesh sizes are used for screening wall paints with different particle sizes. The blocking plate is connected to the grinding roller 2 and is configured to rise and fall and slide in the screening drum 4; The sealing plate includes an upper plate 5 and a lower plate 6. The lower plate 6 is connected to the grinding roller 2. The screening drum 4 and the lower plate 6 are configured to rotate with the grinding roller 2. The grinding roller 2, the lower plate 6 and the screening drum 4 rotate synchronously. A screening working area is formed between the upper plate 5, the lower plate 6 and the screening drum 4. The screening working area is adjusted as the sealing plate slides in the screening drum 4.

[0022] During specific use, as the blocking plate rises and falls in the screening drum 4, the mesh size of the screening drum 4 corresponding to the screening working area changes, thereby meeting the screening requirements of paint ingredients with different grinding particle sizes.

[0023] Specifically, see Figure 2 、 Figure 3 and Figure 6 In this embodiment, a group of rotating shafts 7 are fixedly provided on the lower surfaces of the grinding roller 2 and the lower plate 6, and a group of rotating drums 8 are fixedly provided on the lower plate 6 and the screening drum 4. An engaging protrusion 9 is provided on the outer surface of the rotating shaft 7, and an engaging groove 10 is provided on the inner surface of the rotating drum 8. The rotating shaft 7 is engaged and slidably arranged in the engaging groove 10 of the rotating drum 8 through the engaging protrusion 9. The rotating shaft 7 and the rotating drum 8 rotate synchronously through the cooperation of the engaging protrusion 9 and the engaging groove 10.

[0024] During specific use, when the grinding roller 2 rotates and cooperates with the grinding cylinder 1 to grind the wall coating, through the cooperation of the fitting protrusions 9 and fitting grooves 10 provided on the rotating shaft 7 and the rotating cylinder 8, the lower plate 6 and the screening cylinder 4 are driven to rotate synchronously with the grinding roller 2. When the screening cylinder 4 and the lower plate 6 rotate synchronously, the wall coating in the screening working area is screened.

[0025] Specifically, referring to Figure 8 and Figure 9 , in this embodiment, a crushing assembly is provided between the upper plate 5 and the lower plate 6. The crushing assembly includes a crushing shaft 11 and crushing blades 12. The crushing shaft 11 is rotatably arranged on the lower plate 6, and the crushing blades 12 are fixedly arranged on the crushing shaft 11. Under the action of the crushing blades 12, the wall coating is further crushed to ensure that the unfully ground wall coating can also meet the required particle size for screening; a driving cavity 13 is opened in the lower plate 6, and a crushing motor 14 is fixedly arranged in the driving cavity 13. There are multiple groups of the crushing assemblies on the lower plate 6. One group of the crushing shafts 11 is connected to the output shaft of the crushing motor 14, and adjacent two groups of the crushing shafts 11 are connected by a belt pulley and a transmission belt.

[0026] Specifically, referring to Figure 2 , Figure 4 and Figure 7 , in this embodiment, an upper protective cylinder 15 is fixedly arranged on the lower surface of the grinding cylinder 1, a lower protective cylinder 16 is fixedly arranged on the circumference of the upper plate 5, a sliding cavity 17 is opened in the side wall of the lower protective cylinder 16, the upper protective cylinder 15 is slidably arranged in the sliding cavity 17, one of the side walls of the upper protective cylinder 15 and the sliding cavity 17 is provided with an anti-rotation protrusion 18, and the other is provided with an anti-rotation groove 19. The anti-rotation protrusion 18 is snap-fitted and slidably arranged in the anti-rotation groove 19. Through the cooperation of the anti-rotation protrusion 18 and the anti-rotation groove 19, the relative rotation of the lower protective cylinder 16 with respect to the upper protective cylinder 15 can be avoided. The lower protective cylinder 16 can only be lifted or lowered relative to the upper protective cylinder 15, and no relative rotation can occur between the two, that is, the upper plate 5 fixedly connected to the lower protective cylinder 16 can only be lifted or lowered relative to the grinding roller 2, and cannot rotate with the rotation of the grinding roller 2.

[0027] Specifically, referring to Figure 2 , Figure 5 and Figure 8 , in this embodiment, the upper surface of the upper plate 5 is funnel-shaped, a blanking groove 20 is opened in the middle of the upper plate 5, and the rotating cylinder 8 arranged on the lower plate 6 penetrates through the blanking groove 20. The funnel-shaped structure of the upper surface of the upper plate 5 can improve the blanking efficiency.

[0028] Specifically, referring to Figure 2 , Figure 7 and Figure 9, in this embodiment, the grinding roller 2 and the lower plate 6 are connected by a height adjustment mechanism. Through the setting of the height adjustment mechanism, the lifting and sliding adjustment of the sealing plate in the screening cylinder 4 is realized. An annular sliding groove 26 is formed on the lower surface of the upper plate 5, and a load-bearing column 25 is fixedly arranged on the upper surface of the lower plate 6. The upper end of the load-bearing column 25 is clamped and slidably arranged in the sliding groove 26. Through the cooperation of the load-bearing column 25 and the sliding groove 26, when the lower plate 6 is lifted or lowered, the upper plate 5 can be driven to lift or lower synchronously. When the lower plate 6 rotates with the grinding roller 2, the rotation of the upper plate 5 can be avoided under the cooperation of the anti-rotation protrusion 18 and the anti-rotation groove 19. As a preferred embodiment, the upper end of the load-bearing column 25 and the longitudinal section of the sliding groove 26 are both arranged in a T-shaped structure.

[0029] Specifically, referring to Figure 2 and Figure 3 , in this embodiment, the height adjustment mechanism includes a height adjustment motor 21 and two groups of height adjustment components. A height adjustment cavity 22 is arranged inside the grinding roller 2, and the height adjustment motor 21 is fixedly arranged in the height adjustment cavity 22; the height adjustment component includes a height adjustment screw 23 and a height adjustment threaded sleeve 24. The height adjustment screw 23 is rotatably arranged on the grinding roller 2 and its upper end extends into the height adjustment cavity 22. The height adjustment threaded sleeve 24 is connected to the height adjustment screw 23 through a thread. The lower end of the height adjustment threaded sleeve 24 penetrates through the blanking groove 20 and is connected to the lower plate 6. The height adjustment screw 23 and the output shaft of the height adjustment motor 21 are connected through a pulley and a transmission belt.

[0030] During specific use, the height adjustment screw 23 is driven to rotate under the driving action of the height adjustment motor 21. The height adjustment screw 23 drives the height adjustment threaded sleeve 24 to drive the sealing plate to lift or lower. When the sealing plate lifts or lowers, it cooperates with different-sized mesh holes on the screening cylinder to realize the adjustment of the position of the screening working area. By adjusting the different mesh hole sizes on the screening net corresponding to the screening working area, the screening requirements for different particle sizes of wall coatings can be met.

[0031] Specifically, referring to Figure 1 and Figure 2 , a grinding device for producing architectural wall coatings provided in this embodiment further includes a collection shell 27. A support frame 28 is fixedly arranged on the lower inner wall of the collection shell 27. The screening cylinder 4 is rotatably arranged on the support frame 28 through a rotating cylinder 8. The support frame 28 is used to support the screening cylinder 4. The bottom wall of the collection shell 27 is arranged in a conical structure, and a discharge slot 29 is formed on the bottom wall of the collection shell 27.

[0032] Specifically, referring to Figure 2, in this embodiment, a gap adjustment mechanism is provided on the top wall of the collection shell 27. The gap adjustment mechanism includes a gap adjustment motor 30, a gap adjustment screw 31, and a gap adjustment push plate 32. The gap adjustment screw 31 is rotatably provided on the top wall of the collection shell 27. There are two sets of gap adjustment screws 31. One set of gap adjustment screws 31 is connected to the output shaft of the gap adjustment motor 30. The two sets of gap adjustment screws 31 are connected by a belt pulley and a transmission belt. Both ends of the gap adjustment push plate 32 are connected to the two sets of gap adjustment screws 31 by threads. A grinding motor 33 is fixedly provided on the gap adjustment push plate 32. The grinding roller 2 is connected to the output shaft of the grinding motor 33. Under the driving action of the gap adjustment screw 31, the height position of the gap adjustment push plate 32 can be adjusted. Under the action of the gap adjustment push plate 32, the grinding roller 2 is driven to slide in the grinding cylinder 1 to realize the adjustment of the grinding gap 3. And under the action of the grinding motor 33, the grinding roller 2 is driven to rotate. The rotating grinding roller 2 cooperates with the grinding cylinder 1 to realize the grinding of the wall paint.

[0033] It should be noted that the connection between the belt pulley and the transmission belt involved in this embodiment is a mature existing technology, so it will not be elaborated in detail in this solution.

[0034] Specifically, refer to Figure 1 , Figure 2 and Figure 8 , in this embodiment, an annular feeding pipe 34 is provided on the top wall of the collection shell 27. A plurality of feeding pipes 35 are provided on the lower surface of the annular feeding pipe 34. The feeding pipes 35 penetrate the top wall of the collection shell 27 and are located above the grinding gap 3. And the feeding pipes 35 are arranged close to the inner wall of the grinding cylinder 1. Through the arrangement of the plurality of feeding pipes 35, multi-point feeding of the wall paint is realized, improving the grinding effect of the grinding roller 2 and the grinding cylinder 1 on the wall paint. And through the structural arrangement that the feeding pipes 35 are close to the inner wall of the grinding cylinder 1, the wall paint can move down along the inner wall of the grinding cylinder 1.

[0035] The working principle of a grinding device for producing building wall paint provided in this embodiment is as follows: (1) Position adjustment of the grinding roller 2 and the sealing plate: First, start the gap adjustment motor 30. Driven by the transmission belt, the gap adjustment motor 30 drives the two sets of gap adjustment screws 31 to rotate. The two sets of gap adjustment screws 31 cooperate to drive the gap adjustment push plate 32 to move up and down. When the gap adjustment push plate 32 moves up and down, it drives the grinding roller 2 to move up and down in the grinding cylinder 1, thereby adjusting the size of the grinding gap 3. The grinding gap 3 determines the grinding particle size of the wall paint. Specifically, due to the trapezoidal structure of the cross-section of the grinding roller 2 and the grinding cylinder 1, the grinding gap 3 gradually decreases as the grinding roller 2 moves down in the grinding cylinder 1. When the grinding roller 2 moves up and down, the rotating shaft 7 below the grinding roller 2 slides in the rotating cylinder 8 on the lower plate 6 to adapt to the up and down movement of the grinding roller 2.

[0036] After that, start the height adjustment motor 21. Driven by the height adjustment motor 21 under the action of the transmission belt, the height adjustment screw rod 23 rotates. The height adjustment screw rod 23 drives the lower plate 6 to slide inside the screening cylinder 4 through the height adjustment threaded sleeve 24. Under the connection of the load-bearing column 25, the lower plate 6 drives the upper plate 5 to slide and lift synchronously inside the screening cylinder 4, realizing the height position adjustment of the plugging plate inside the screening cylinder 4 until the mesh size of the screening cylinder 4 corresponding between the upper plate 5 and the lower plate 6 is the screening size required for the wall paint.

[0037] During the lifting and lowering of the upper plate 5, the lower protection cylinder 16 is driven to lift and lower relative to the upper protection cylinder 15. Under the cooperation of the upper protection cylinder 15 and the lower protection cylinder 16, the ground wall paint falling from the grinding interval is received. The wall paint enters the screening working area through the material discharge groove 20 on the upper plate 5. When the plugging plate lifts and lowers, the rotating shaft 7 below the lower plate 6 slides inside the rotating cylinder 8 on the screening cylinder 4 to adapt to the lifting and lowering action of the plugging plate.

[0038] (2) Grinding and screening process: The wall paint to be ground is added into the grinding cylinder 1 in a multi-point feeding manner through the feeding pipe 34 and the blanking pipe 35. The wall paint enters between the grinding roller 2 and the grinding interval 3 of the grinding cylinder 1 along the inner wall of the grinding cylinder 1.

[0039] Start the grinding motor 33. The grinding motor 33 drives the grinding roller 2 to rotate. The grinding roller 2 and the grinding cylinder 1 cooperate to grind the wall paint in the grinding interval 3; during the rotation and grinding of the grinding roller 2, the rotating cylinder 8 is driven to rotate by the rotating shaft 7 through the cooperation of the fitting protrusion 9 and the fitting groove 10, that is, the lower plate 6 is driven to rotate by the grinding roller 2, and the screening cylinder 4 is driven to rotate by the lower plate 6. During the synchronous rotation of the lower plate 6 and the screening cylinder 4, the wall paint in the screening working area is screened by centrifugal force. The screened wall paint falls into the collection shell 27 and is discharged along the discharge chute 29.

[0040] When the grinding roller 2 and the lower plate 6 rotate, limited by the anti-rotation protrusion 18 and the anti-rotation groove 19, the lower protection cylinder 16 can only slide up and down along the upper protection cylinder 15 and cannot rotate relative to the upper protection cylinder 15, that is, the upper plate 5 can only perform lifting and lowering actions relative to the grinding cylinder 1. During this process, the load-bearing column 25 slides inside the sliding groove 26 of the upper plate 5.

[0041] During the screening process, start the crushing motor 14. Driven by the transmission belt, multiple groups of crushing shafts 11 are driven to rotate. The crushing shafts 11 drive the crushing blades 12 thereon to rotate. The rotating crushing blades 12 further crush the wall paint that cannot be smoothly screened out in the screening working area to ensure that the wall paint can be crushed into the required particle size.

[0042] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, material or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, material or device.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding device for the production of architectural wall coatings, characterized in that Comprising: A grinding cylinder (1) with a trapezoidal cross-section on its side wall; A grinding roller (2) rotatably arranged inside the grinding cylinder (1), the cross-sectional shape of its side wall matching that of the grinding cylinder (1). The grinding roller (2) is configured to lift and lower inside the grinding cylinder (1), and a grinding gap (3) is provided between the side wall of the grinding roller (2) and the grinding cylinder (1); A screening cylinder (4) rotatably arranged below the grinding gap (3), with various mesh sizes of the screening cylinder (4) from top to bottom; A sealing plate connected to the grinding roller (2), the sealing plate configured to lift and slide inside the screening cylinder (4); The sealing plate includes an upper plate (5) and a lower plate (6). The lower plate (6) is connected to the grinding roller (2). Both the screening cylinder (4) and the lower plate (6) are configured to rotate synchronously with the grinding roller (2). A screening working area is formed between the upper plate (5), the lower plate (6), and the screening cylinder (4), and the screening working area is adjusted with the sliding of the sealing plate inside the screening cylinder (4).

2. The grinding equipment for the production of building wall coatings according to claim 1, characterized in that, A set of rotating shafts (7) are fixedly provided on the lower surfaces of both the grinding roller (2) and the lower plate (6). A set of rotating cylinders (8) are fixedly provided on both the lower plate (6) and the screening cylinder (4). Fitting protrusions (9) are provided on the outer surface of the rotating shaft (7), and fitting grooves (10) are provided on the inner surface of the rotating cylinder (8). The rotating shaft (7) is clamped and slidably arranged in the fitting groove (10) of the rotating cylinder (8) through the fitting protrusion (9), and the rotating shaft (7) and the rotating cylinder (8) rotate synchronously through the cooperation of the fitting protrusion (9) and the fitting groove (10).

3. The grinding equipment for the production of building wall coatings according to claim 2, characterized in that, A crushing assembly is provided between the upper plate (5) and the lower plate (6). The crushing assembly includes a crushing shaft (11) and crushing blades (12). The crushing shaft (11) is rotatably arranged on the lower plate (6), and the crushing blades (12) are fixedly arranged on the crushing shaft (11); A driving cavity (13) is formed inside the lower plate (6), and a crushing motor (14) is fixedly arranged in the driving cavity (13). Multiple groups of the crushing assembly are provided on the lower plate (6). One group of the crushing shafts (11) is connected to the output shaft of the crushing motor (14), and adjacent two groups of the crushing shafts (11) are connected through a pulley and a transmission belt.

4. The grinding equipment for producing architectural wall coatings according to claim 2, characterized in that, An upper protective cylinder (15) is fixedly provided on the lower surface of the grinding cylinder (1). A lower protective cylinder (16) is fixedly provided on the circumference of the upper plate (5). A sliding cavity (17) is formed inside the side wall of the lower protective cylinder (16). The upper protective cylinder (15) is slidably arranged in the sliding cavity (17). One of the side walls of the upper protective cylinder (15) and the sliding cavity (17) is provided with an anti-rotation protrusion (18), and the other is provided with an anti-rotation groove (19). The anti-rotation protrusion (18) is clamped and slidably arranged in the anti-rotation groove (19).

5. The grinding equipment for producing architectural wall coatings according to claim 2, characterized in that, The upper surface of the upper plate (5) is funnel-shaped, and a feeding groove (20) is formed in the middle of the upper plate (5). The rotating cylinder (8) provided on the lower plate (6) penetrates through the feeding groove (20).

6. The grinding equipment for the production of architectural wall coatings according to claim 4, characterized in that, The grinding roller (2) and the lower plate (6) are connected by a height adjustment mechanism. An annular sliding groove (26) is formed on the lower surface of the upper plate (5), and a load-bearing column (25) is fixedly arranged on the upper surface of the lower plate (6). The upper end of the load-bearing column (25) is clamped and slidably arranged in the sliding groove (26).

7. The grinding equipment for producing architectural wall coatings according to claim 6, characterized in that, The height adjustment mechanism includes a height adjustment motor (21) and two groups of height adjustment components. A height adjustment cavity (22) is arranged inside the grinding roller (2), and the height adjustment motor (21) is fixedly arranged in the height adjustment cavity (22). The height adjustment component includes a height adjustment screw rod (23) and a height adjustment threaded sleeve (24). The height adjustment screw rod (23) is rotatably arranged on the grinding roller (2) and its upper end extends into the height adjustment cavity (22). The height adjustment threaded sleeve (24) is connected to the height adjustment screw rod (23) by threads. The lower end of the height adjustment threaded sleeve (24) penetrates through the blanking groove (20) and is connected to the lower plate (6). The height adjustment screw rod (23) and the output shaft of the height adjustment motor (21) are connected by a belt pulley and a transmission belt.

8. The grinding equipment for producing architectural wall coatings according to claim 2, wherein, It further includes a collection shell (27). A support frame (28) is fixedly arranged on the lower inner wall of the collection shell (27). The screening cylinder (4) is rotatably arranged on the support frame (28) through a rotating cylinder (8). The support frame (28) is used for bearing and supporting the screening cylinder (4). The bottom wall of the collection shell (27) is arranged in a conical structure, and a discharge groove (29) is formed on the bottom wall of the collection shell (27).

9. The grinding equipment for the production of architectural wall coatings according to claim 8, characterized in that, A gap adjustment mechanism is arranged on the top wall of the collection shell (27). The gap adjustment mechanism includes a gap adjustment motor (30), a gap adjustment screw rod (31) and a gap adjustment push plate (32). The gap adjustment screw rod (31) is rotatably arranged on the top wall of the collection shell (27). There are two groups of the gap adjustment screw rods (31). One group of the gap adjustment screw rods (31) is connected to the output shaft of the gap adjustment motor (30). The two groups of the gap adjustment screw rods (31) are connected by a belt pulley and a transmission belt. The two ends of the gap adjustment push plate (32) are connected to the two groups of the gap adjustment screw rods (31) by threads. A grinding motor (33) is fixedly arranged on the gap adjustment push plate (32), and the grinding roller (2) is connected to the output shaft of the grinding motor (33).

10. The grinding equipment for the production of architectural wall coatings according to claim 8, characterized in that, An annular feeding pipe (34) is arranged on the top wall of the collection shell (27). A plurality of blanking pipes (35) are arranged on the lower surface of the annular feeding pipe (34). The blanking pipes (35) penetrate through the top wall of the collection shell (27) and are located above the grinding gap (3), and the blanking pipes (35) are arranged close to the inner wall of the grinding cylinder (1).

Images