A roller brush device for cleaning a plate surface

Abstract

This invention discloses a roller brush device for cleaning gypsum board surfaces, relating to the field of gypsum board production technology. The device includes a cleaning roller, a slide block, a board frame, a support base, a linear actuator, and a limiting linkage. The cleaning roller is positioned above the gypsum board. The slide block is fitted onto both sides of the cleaning roller's shaft and slides in a groove on the board frame. The board frame is hinged to the support base. The linear actuator drives the board frame to swing around the hinge point, achieving arc-shaped lifting and lowering adjustment of the cleaning roller. The limiting linkage is hinged at both ends to the support base and the slide block, respectively, and, in conjunction with the groove, constrains the slide block's trajectory, ensuring the cleaning roller maintains a consistent contact angle with the gypsum board surface. A motor is fixedly mounted on the support base and drives the cleaning roller to rotate actively via a two-stage belt drive, without synchronously lifting or lowering with the cleaning roller. This invention effectively reduces drive load and energy consumption, provides a stable cleaning angle and high contact accuracy, and is suitable for continuous gypsum board conveying and cleaning operations.

Description

Technical Field

[0001] This invention relates to the field of gypsum board production technology, and more specifically to a roller brush device for cleaning the board surface. Background Technology

[0002] In the production and processing of gypsum board, in order to ensure the cleanliness of the gypsum board surface, it is necessary to clean the surface of the gypsum board by using roller brushes during the gypsum board transportation process.

[0003] Since different batches of gypsum board have different specifications, the roller brush needs to be raised or lowered according to the actual working conditions to ensure the fit between the roller brush and the gypsum board surface and to ensure the cleaning effect.

[0004] However, in the existing technology, most motors used to drive the rotation of the roller brush are installed at the end of the roller brush. When the height of the roller brush needs to be adjusted, the motor will be raised or lowered along with the roller brush. Since the motor itself is heavy, the load will increase when it is adjusted. At the same time, in order to drive the motor and roller brush to rise and fall as a whole, a drive device with a large load capacity is required, which can easily lead to increased energy consumption of the drive device and decreased adjustment sensitivity, making it difficult to achieve rapid adjustment of the height of the sweeping roller.

[0005] In summary, most existing roller brush drive motors are located at the end and move up and down synchronously with the roller brush. The motor's own weight increases the load and energy consumption. Summary of the Invention

[0006] The purpose of this invention is to provide a roller brush device for cleaning the surface of a board, so as to solve the technical problem that in the prior art, the drive motor of the roller brush is mostly located at the end and rises and falls synchronously with the roller brush, which increases the load and energy consumption due to the weight of the motor.

[0007] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0008] In a first aspect of the invention, a roller brush device for cleaning a plate surface is provided, comprising:

[0009] A cleaning roller having a roller brush and a shaft, the cleaning roller being positioned above the gypsum board and arranged along the width direction of the gypsum board;

[0010] Two slide blocks are respectively sleeved on both sides of the shaft via bearings;

[0011] The two plate frames are respectively located on the outer sides of both ends of the cleaning roller and below each of the slide blocks. Each plate frame is provided with a slide groove extending along the gypsum board conveying direction. Each slide block is slidably connected to the slide groove on the corresponding side.

[0012] A support base is provided below each of the plate frames, and one end of each plate frame is hinged to the support base;

[0013] A linear actuator is disposed between the plate frame and the support base. The driving end of the linear actuator is connected to one end of the plate frame and is used to drive the plate frame to rotate around the hinge point so that the cleaning roller approaches or moves away from the gypsum board surface.

[0014] A limiting link is provided, with one end hinged to the support base and the other end hinged to the slide block. The limiting link cooperates with the slide groove to limit the movement trajectory of the slide block when the board frame swings, so that the cleaning roller maintains the contact angle with the gypsum board surface.

[0015] As a preferred embodiment of the present invention, the frame is an integrally bent frame structure, including: a horizontal main panel, two parallel side guards formed by bending upwards on both sides along the length direction of the horizontal main panel, and a pair of horizontal limiting plates formed by extending horizontally inwards from the top of the side guards.

[0016] The horizontal limiting plate is arranged parallel to the horizontal main panel, and the chute is opened on the horizontal limiting plate along the gypsum board conveying direction and is located between the two side stops.

[0017] The horizontal main panel has a through-hole groove, which is arranged parallel to the sliding groove.

[0018] The end of the plate frame near the support base is a hinge end, and the bottom surface of the horizontal main panel is connected to the drive end of the linear actuator.

[0019] In a preferred embodiment of the present invention, a sliding plate is fixed to the bottom of the slide block, the sliding plate is embedded in the slide groove, and a connecting plate is fixedly connected to the lower end of the sliding plate;

[0020] The width of the bottom surface of the slide block and the width of the top surface of the connecting plate are both greater than the width of the groove, so that the slide block and the connecting plate are respectively fitted and limited to the top and bottom surfaces of the plate frame; when the slide plate slides along the groove, it drives the slide block and the connecting plate to slide synchronously along the plate frame.

[0021] As a preferred embodiment of the present invention, the support base is an integrally bent support structure, including an inclined support panel and two horizontal mounting base plates integrally connected to both ends of the inclined support panel.

[0022] The two horizontal mounting base plates are used for fixed installation on the equipment frame, the inclined support panel is provided with hinge points for the plate frame, and the linear actuator is mounted on the support base.

[0023] As a preferred embodiment of the present invention, a U-shaped bracket is provided on the inclined support panel corresponding to the slide position, the opening of the U-shaped bracket faces the slide, and the limiting link is rotatably assembled inside the U-shaped bracket via a rotating shaft;

[0024] The bottom of the slide block is provided with a groove;

[0025] The end of the limiting link away from the U-shaped bracket is provided with a protruding plate, and the limiting link is hinged to the groove through a rotating shaft.

[0026] As a preferred embodiment of the present invention, a recess is fixedly provided at the end of the linear driver, and a connecting ear that is adapted to the recess extends downward from the bottom wall of the plate frame.

[0027] The connecting ear is embedded inside the recess of the concave block and forms a rotatable hinge fit with the concave block.

[0028] In a preferred embodiment of the present invention, the shaft extends outward after passing through the slide block to form an extension section;

[0029] The connecting plate has a rotating rod rotatably connected to the side wall away from the cleaning roller via a bearing;

[0030] The extension of the shaft is equal in length to the rotating rod;

[0031] A first belt is fitted between the extension section and the rotating rod for transmission connection.

[0032] As a preferred embodiment of the present invention, a boss is provided on the side of the U-shaped bracket away from the cleaning roller, and a motor is installed on the upper end of the boss, with the output shaft of the motor facing the direction of the cleaning roller.

[0033] A second belt is connected between the output shaft of the motor and the rotating rod, so that the motor, the second belt, the rotating rod, the first belt and the sweeping roller form a linkage transmission structure.

[0034] As a preferred embodiment of the present invention, the roller brush is made of a flexible elastic material and is fixed to the outer periphery of the shaft.

[0035] Compared with the prior art, the present invention has the following advantages:

[0036] This invention utilizes a linear actuator to extend and retract a push-pull plate frame, causing the frame to swing in an arc around its hinge point with the supporting base. This swinging motion drives the sliding groove, sliding seat, and cleaning roller to rise and fall synchronously in an arc, thereby adjusting the height of the cleaning roller relative to the gypsum board surface. Simultaneously, the sliding groove guides the sliding seat, and a limiting linkage constrains the sliding seat's movement trajectory, effectively limiting its deflection and tilting. This ensures the cleaning roller maintains a stable posture during height adjustment, maintaining a constant parallel contact angle with the gypsum board surface, preventing end lifting or tilting, and ensuring the cleaning roller's overall length is evenly attached to the board surface, avoiding localized suspension or excessive compression. This significantly improves the cleaning uniformity and overall cleaning effect of the gypsum board surface. Attached Figure Description

[0037] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the present invention;

[0039] Figure 2 This is a partial structural diagram of the first embodiment of the present invention;

[0040] Figure 3 This is a schematic diagram of the overall structure of the second embodiment of the present invention;

[0041] Figure 4 This is a partially enlarged schematic diagram of the second embodiment of the present invention;

[0042] Figure 5 This is a partial structural diagram of the slide block of the present invention;

[0043] Figure 6 This is a partial structural diagram of the groove on the slide block of the present invention.

[0044] The labels in the diagram represent the following:

[0045] 1. Sweeping roller; 11. Roller brush; 12. Shaft; 121. Extension section; 2. Slide seat; 21. Slide plate; 22. Connecting plate; 221. Rotating rod; 23. Groove; 3. Plate frame; 31. Slide groove; 32. Connecting ear; 33. Horizontal main panel; 34. Side guard; 35. Horizontal limiting plate; 36. Hollowed-out groove; 4. Support base; 41. Inclined support panel; 42. Horizontal mounting base plate; 43. U-shaped bracket; 431. Boss; 5. Linear driver; 51. Concave block; 6. Limiting connecting rod; 61. Protruding plate; 7. First belt; 8. Motor; 9. Second belt. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] First embodiment:

[0048] like Figures 1-2, Figures 5-6 As shown, the present invention provides a roller brush device for cleaning a board surface, comprising:

[0049] A cleaning roller 1, comprising a roller brush 11 and a shaft 12, is positioned above the gypsum board and along its width. Two sliding blocks 2 are respectively fitted onto both sides of the shaft 12 via bearings. Two plate frames 3 are respectively located on the outer sides of both ends of the cleaning roller 1 and below each sliding block 2. Each plate frame 3 has a groove 31 extending along the conveying direction of the gypsum board. Each sliding block 2 is slidably connected to the corresponding groove 31. A support base 4 is provided below each plate frame 3. One end of each component is hinged to the support base 4. The linear actuator 5 is located between the plate frame 3 and the support base 4. The driving end of the linear actuator 5 is connected to one end of the plate frame 3 and is used to drive the plate frame 3 to rotate around the hinge point so that the cleaning roller 1 approaches or moves away from the gypsum board surface. One end of the limiting link 6 is hinged to the support base 4 and the other end is hinged to the slide 2. The limiting link 6 cooperates with the slide groove 31 to limit the movement trajectory of the slide 2 when the plate frame 3 swings so that the cleaning roller 1 maintains the contact angle with the gypsum board surface.

[0050] This embodiment mainly addresses the technical problem that the drive motor of the roller brush above the gypsum board is mostly installed at the end of the roller brush and rises and falls synchronously with the roller brush, which increases the driving load and energy consumption due to the increased self-weight of the motor.

[0051] Specifically, when the device is working, the gypsum board moves forward at a constant speed along the preset conveying direction. The conveying motion of the gypsum board can drive the roller brush 11 that is in contact with it to rotate passively, thereby realizing the passive cleaning of the gypsum board surface.

[0052] The height adjustment of the cleaning roller 1 is achieved by the extension and retraction of the linear actuator 5. In the initial state, the linear actuator 5 is in the retracted state, and the drive plate 3 swings downward around the hinge point of the support base 4, driving the cleaning roller 1 to gradually approach the gypsum board surface until the roller brush 11 forms a suitable fit with the upper surface of the gypsum board.

[0053] During the continuous forward conveying of the gypsum board and the passive rotation of the roller brush 11 for cleaning, the limiting link 6 and the sliding groove 31 on the plate frame 3 cooperate to restrict the movement trajectory of the slide block 2. When the linear actuator 5 drives the plate frame 3 to adjust the height of the cleaning roller 1 along the arc trajectory around the hinge point, the slide block 2 will slide horizontally along the sliding groove 31. The limiting link 6, through the hinge structure at both ends, pulls the slide block 2 to slide along the preset trajectory, preventing the slide block 2 from deviating. This ensures that the cleaning roller 1 maintains the preset contact angle with the gypsum board surface throughout the height adjustment process, ensuring that the roller brush 11 is in close contact with the board surface and ensuring the passive cleaning effect.

[0054] Considering that the overall rigidity of the board frame is insufficient when it adopts a split assembly structure, it is prone to deformation under the vibration generated by the continuous conveying of gypsum board and the continuous operation of the cleaning roller. Therefore, the following embodiment is proposed: The board frame 3 is an integrally bent frame structure, including a horizontal main panel 33, two parallel side guards 34 formed by bending upwards on both sides along the length direction of the horizontal main panel 33, and a pair of horizontal limiting plates 35 formed by extending horizontally inwards from the top of the side guards 34. The horizontal limiting plates 35 are arranged parallel to the horizontal main panel 33. The slide groove 31 is opened on the horizontal limiting plate 35 along the gypsum board conveying direction and is located between the two side guards 34. A through hollow groove 36 is opened on the horizontal main panel 33. The hollow groove 36 is arranged parallel to the slide groove 31. The end of the board frame 3 near the support base 4 is a hinge end. The bottom surface of the horizontal main panel 33 is connected to the driving end of the linear actuator 5.

[0055] Specifically, this integrated bending frame structure is formed as a whole without splicing gaps, which makes it more rigid. Under the continuous conveying of gypsum board and the vibration generated by the operation of the cleaning roller, it can effectively avoid deformation, ensure the overall structural stability of the board frame, and thus ensure the smooth sliding of the slide block 2 along the slide groove 31 and the fitting accuracy of the cleaning roller 1.

[0056] Secondly, by opening a hollowed-out groove 36 on the horizontal main panel 33 that is parallel to the slide 31, not only can the overall weight of the plate frame be effectively reduced, thereby reducing the driving load of the linear actuator 5, but it can also avoid the connection structure between the lower component and the upper slide 2, thus avoiding interference between the components.

[0057] Considering that when the slide block is simply embedded in the slide groove and slides, it is prone to vertical detachment and lateral displacement under the influence of the vibration of the gypsum board conveying and the working force of the cleaning roller, resulting in poor stability during the sliding process, the following embodiments are proposed.

[0058] A slide plate 21 is fixed to the bottom of the slide block 2. The slide plate 21 is embedded in the slide groove 31. A connecting plate 22 is fixed to the lower end of the slide plate 21. The bottom width of the slide block 2 and the top width of the connecting plate 22 are both greater than the groove width of the slide groove 31, so that the slide block 2 and the connecting plate 22 are respectively fitted and limited to the top and bottom surfaces of the plate frame 3. When the slide plate 21 slides along the slide groove 31, it drives the slide block 2 and the connecting plate 22 to slide synchronously along the plate frame 3.

[0059] With this upper and lower clamping and limiting structure, the slide plate 21 is embedded in the slide groove 31 to achieve directional sliding. The slide block 2 and the connecting plate 22 are respectively clamped on the upper and lower surfaces of the plate frame 3 to form an overall clamping and limiting structure. This can completely limit the vertical movement and lateral displacement of the slide block 2 under the vibration of the gypsum board conveying and the working force of the cleaning brush 1, ensuring that the slide block 2 always maintains coaxial and unidirectional movement during the sliding process.

[0060] To achieve fine-tuning of the arc height of the cleaning roller 1—that is, by slightly oscillating the plate frame 3 around the hinge point of the support base 4 to fine-tune the arc posture and height of the cleaning roller 1, ensuring that the roller brush 11 is in full contact with the gypsum board surface, and at the same time adapting to the installation requirements of the linear actuator 5, the following embodiment is proposed:

[0061] The support base 4 is configured as an integrally bent support structure, including an inclined support panel 41 and two horizontal mounting base plates 42 integrally connected to both ends of the inclined support panel 41. The two horizontal mounting base plates 42 are used to be fixedly installed on the equipment frame. The inclined support panel 41 is provided with hinge points of the plate frame 3. The linear drive 5 is assembled on the support base 4.

[0062] The bent support structure has two horizontal mounting base plates 42 arranged at different heights. The higher horizontal mounting base plate 42 corresponds to the hinge point of the plate frame 3, and the lower horizontal mounting base plate 42 corresponds to the mounting point of the linear actuator 5. The inclined support panel 41 forms an inclined bearing structure and serves as the connecting carrier of the limiting link 6.

[0063] This setting allows the height adjustment of the cleaning roller 1 to be in an arc-shaped fine-tuning state. Compared with the straight up-down adjustment method, it allows the roller brush 11 to always be in contact with the gypsum board surface during the fine-tuning process. At the same time, the inclined support panel 41 can connect the hinge point, the mounting point of the linear actuator 5 and the connection point of the limit link 6, ensuring that the extension and retraction of the linear actuator 5 and the slight sway of the board frame 3 can achieve smooth fine-tuning.

[0064] Considering that when the limit linkage is installed with a non-directional limit structure, it is easy to swing and deviate under the action of gypsum board conveying vibration and board frame swing, and the linkage and slide block are easy to disengage and rotate and get stuck, affecting the constraint effect on the slide block's motion trajectory, the following embodiment is proposed.

[0065] A U-shaped bracket 43 is provided on the inclined support panel 41 corresponding to the position of the slide 2. The opening of the U-shaped bracket 43 faces the slide 2. The limiting link 6 is rotatably assembled inside the U-shaped bracket 43 through a rotating shaft. A groove 23 is provided at the bottom of the slide 2. A protrusion 61 is provided at the end of the limiting link 6 away from the U-shaped bracket 43. The limiting link 6 is hinged in the groove 23 through a rotating shaft.

[0066] With the above structure, the U-shaped bracket 43 can limit the roots of the limiting link 6 on both sides, preventing it from swaying and deviating laterally when the gypsum board is conveyed and vibrates or the frame 3 swings.

[0067] The end plate 61 of the limiting link 6 is embedded in the groove 23 of the slide block 2 and hinged to achieve an embedded rotational fit, with no radial disengagement gap and smooth rotation.

[0068] The combination of the two can stably constrain the sliding block 2 along the movement trajectory of the sliding groove 31 by the limiting link 6, ensuring that the cleaning roller 1 always maintains the preset contact angle with the gypsum board surface during the height fine adjustment process.

[0069] Considering that when the driving end of the linear actuator 5 is rigidly connected to the plate frame, the plate frame is prone to jamming during the swinging process around the hinge point, and the swing angle cannot be adaptively fine-tuned, resulting in transmission interference and affecting the smoothness of the swinging of the plate frame 3, the following embodiment is proposed:

[0070] The linear actuator 5 has a recess 51 fixed at its end. The bottom wall of the plate frame 3 extends downward and has a connecting ear 32 that matches the recess 51. The connecting ear 32 is embedded in the recess of the recess 51 and forms a rotatable hinge engagement with the recess 51.

[0071] With this structure, the connecting ear 32 is embedded in the recess of the concave block 51 to form a limiting hinge pair. When the linear actuator 5 extends and drives the plate frame 3 to rotate around the hinge point, the hinge pair can adaptively match the swing angle of the plate frame 3, eliminate the transmission stiffness caused by rigid connection, and enable the extension and retraction power of the linear actuator 5 to be smoothly transmitted to the plate frame 3, ensuring that the swing action of the plate frame 3 is smooth and without jamming.

[0072] During the continuous conveying of gypsum board, if it is necessary to fine-tune the contact pressure between the cleaning roller 1 and the board surface, the linear driver 5 can flexibly adjust the swing angle of the board frame 3 through the hinge pair, so that the cleaning roller 1 always maintains a suitable contact state and adapts to the slight positional deviations during the conveying process of gypsum board.

[0073] See Figures 3-6 To achieve active cleaning of the gypsum board surface by the roller brush 11, a second embodiment is proposed:

[0074] After passing through the slide block 2, the shaft 12 extends outward to form an extension section 121. The side wall of the connecting plate 22 away from the cleaning roller 1 is rotatably connected to the rotating rod 221 through a bearing. The extension section 121 of the shaft 12 is equal in length to the rotating rod 221. A first belt 7 is sleeved between the extension section 121 and the rotating rod 221 for transmission connection.

[0075] A boss 431 is provided on the side of the U-shaped bracket 43 away from the sweeping roller 1. A motor 8 is installed on the upper end of the boss 431. The output shaft of the motor 8 is oriented towards the sweeping roller 1. A second belt 9 is connected between the output shaft of the motor 8 and the rotating rod 221 to form a linkage transmission structure with the motor 8, the second belt 9, the rotating rod 221, the first belt 7 and the sweeping roller 1.

[0076] Specifically, in order to achieve active cleaning of the gypsum board surface by the roller brush 11 and improve the cleaning force, the shaft 12 is extended to form an extension section 121. At the same time, a rotating rod 221, which is flush with the extension section 121, is set on the side wall of the connecting plate 22 away from the cleaning roller 1 through a bearing. The outer wall of the extension section 121 and the outer wall of the rotating rod 221 are connected to a first belt 7. The first belt 7 realizes the linkage transmission between the rotating rod 221 and the extension section 121. The rotation of the rotating rod 221 can drive the extension section 121 to rotate synchronously.

[0077] To provide rotational power to the rotating rod 221 and prevent the motor 8 from rising and falling synchronously with the cleaning roller 1, thus increasing the driving load on the linear drive 5, a boss 431 is provided on the side of the U-shaped bracket 43 away from the cleaning roller 1. The motor 8 is installed on the upper end of the boss 431, with the output shaft of the motor 8 facing the cleaning roller 1. The boss 431 is used to adjust the installation height of the motor 8 so that the output shaft of the motor 8 is flush with the rotating rod 221. The motor 8 is fixed on the boss 431. The boss 431, the U-shaped bracket 43, and the support base 4 are all fixed on the equipment frame. Therefore, the motor 8 does not rise and fall synchronously with the cleaning roller 1, thus avoiding the increase in driving load due to the weight of the motor 8.

[0078] A second belt 9 is connected between the output shaft of the motor 8 and the rotating rod 221 to transmit power between the motor 8 and the rotating rod 221.

[0079] After the motor 8 starts, the output shaft rotates, which drives the rotating rod 221 to rotate via the second belt 9. The rotation of the rotating rod 221 drives the extension section 121 to rotate via the first belt 7, which in turn drives the shaft 12 to rotate as a whole. The rotation of the shaft 12 drives the roller brush 11 covering its outer periphery to rotate synchronously and actively.

[0080] At this time, the gypsum board moves forward at a constant speed along the preset conveying direction. The rotating roller brush 11 maintains the contact angle with the surface of the gypsum board and actively cleans the debris on the surface of the gypsum board through its own rotational force, thereby improving the cleaning effect.

[0081] The rotating rod 221 is connected to the connecting plate 22 via a bearing, allowing it to rotate freely and ensuring smooth power transmission. The connecting plate 22 is fixedly connected to the slide block 2, which can slide along the slide groove 31 of the plate frame 3. The rotating rod 221 moves synchronously with the slide block 2, ensuring that the first belt 7 is always stably fitted between the rotating rod 221 and the extension section 121, without affecting power transmission, and without interfering with the height fine-tuning action of the sweeping roller 1, thus ensuring the normal realization of the active sweeping function.

[0082] When the roller brush 11 makes rigid contact with the gypsum board surface for cleaning, it is easy to scratch the surface of the gypsum board during the continuous forward conveying process. Moreover, the rigid material is difficult to adapt to the slight unevenness of the gypsum board surface, resulting in blind spots in cleaning and making it difficult to thoroughly remove fine debris from the board surface. Therefore, the following embodiment is proposed:

[0083] The roller brush 11 is made of a flexible elastic material and is fixed to the outer periphery of the shaft 12.

[0084] With this flexible and elastic material covering, the roller brush 11 has good elastic deformation ability. During the continuous forward conveying of the gypsum board and the uniform rotation of the cleaning roller 1, the roller brush 11 can adapt to the slight unevenness of the gypsum board surface, avoiding cleaning blind spots caused by unevenness of the board surface.

[0085] Meanwhile, the flexible bonding can avoid hard scratch damage to the gypsum board surface caused by the hard roller, protect the surface quality of the gypsum board, and the elastic material has good resilience, which can ensure that the roller brush 11 is always in close contact with the board surface. During the relative movement, it can thoroughly sweep away the dust, debris and other fine debris attached to the board surface, and improve the cleaning effect.

[0086] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A roller brush device for cleaning a surface of a board, characterized by have: A cleaning roller (1) has a roller brush (11) and a shaft (12), the cleaning roller (1) being located above the gypsum board and arranged along the width direction of the gypsum board; Slide (2), the two slides (2) are respectively sleeved on both sides of the shaft (12) by bearings; The two plate frames (3) are respectively located on the outer sides of the two ends of the cleaning roller (1) and below each of the slide blocks (2). Each plate frame (3) is provided with a slide groove (31) extending along the gypsum board conveying direction. Each slide block (2) is slidably connected to the slide groove (31) on the corresponding side. Support base (4), each of the plate frames (3) is provided with a support base (4) below it, and one end of each plate frame (3) is hinged to the support base (4); A linear actuator (5) is disposed between the plate frame (3) and the support base (4). The driving end of the linear actuator (5) is connected to one end of the plate frame (3) to drive the plate frame (3) to rotate around the hinge point so that the cleaning roller (1) approaches or moves away from the gypsum board surface. The limiting link (6) is hinged at one end to the support base (4) and at the other end to the slide (2). The limiting link (6) cooperates with the slide groove (31) to limit the movement trajectory of the slide (2) when the plate frame (3) swings, so that the cleaning roller (1) maintains the contact angle with the gypsum board surface.

2. The roller brush device for cleaning the board surface according to claim 1, characterized in that, The frame (3) is an integrally bent frame structure, including: a horizontal main panel (33), two parallel side guards (34) formed by bending upwards on both sides along the length direction of the horizontal main panel (33), and a pair of horizontal limiting plates (35) formed by extending horizontally inwards from the top of the side guards (34). The horizontal limiting plate (35) and the horizontal main panel (33) are arranged parallel to each other vertically. The chute (31) is opened on the horizontal limiting plate (35) along the gypsum board conveying direction and is located between the two side guards (34). The horizontal main panel (33) has a through-hole groove (36) and the groove (31) are arranged in parallel. The end of the plate frame (3) near the support base (4) is a hinge end, and the bottom surface of the horizontal main panel (33) is connected to the drive end of the linear driver (5).

3. The roller brush device for cleaning the board surface according to claim 2, characterized in that, The bottom of the slide block (2) is fixed with a slide plate (21), the slide plate (21) is embedded in the slide groove (31), and the lower end of the slide plate (21) is fixed with a connecting plate (22). The width of the bottom surface of the slide block (2) and the width of the top surface of the connecting plate (22) are both greater than the width of the groove (31), so that the slide block (2) and the connecting plate (22) are respectively attached to and limited to the top and bottom surfaces of the plate frame (3); when the slide plate (21) slides along the groove (31), it drives the slide block (2) and the connecting plate (22) to slide synchronously along the plate frame (3).

4. The roller brush device for cleaning the board surface according to claim 1, characterized in that, The support base (4) is an integrally bent support structure, including an inclined support panel (41) and two horizontal mounting base plates (42) integrally connected to both ends of the inclined support panel (41). The two horizontal mounting base plates (42) are used to be fixedly installed on the equipment frame. The inclined support panel (41) is provided with the hinge point of the plate frame (3). The linear drive (5) is mounted on the support base (4).

5. The roller brush device for cleaning the board surface according to claim 4, characterized in that, A U-shaped bracket (43) is provided on the inclined support panel (41) corresponding to the position of the slide (2). The opening of the U-shaped bracket (43) faces the slide (2). The limiting link (6) is rotatably assembled inside the U-shaped bracket (43) through a rotating shaft. The bottom of the slide block (2) is provided with a groove (23); The limiting link (6) has a protruding plate (61) at one end away from the U-shaped bracket (43), and the limiting link (6) is hinged to the groove (23) by a rotating shaft.

6. The roller brush device for cleaning the board surface according to claim 2, characterized in that, The end of the linear actuator (5) is fixed with a recess (51), and the bottom wall of the plate frame (3) extends downward with a connecting ear (32) that is adapted to the recess (51). The connecting ear (32) is embedded in the recess of the concave block (51) and forms a rotatable hinge with the concave block (51).

7. The roller brush device for cleaning the board surface according to claim 3, characterized in that, The shaft (12) passes through the slide (2) and extends outward to form an extension section (121). The connecting plate (22) has a rotating rod (221) rotatably connected to the side wall away from the cleaning roller (1) via a bearing. The extension (121) of the shaft (12) is the same length as the rotating rod (221); A first belt (7) is sleeved between the extension section (121) and the rotating rod (221) for transmission connection.

8. The roller brush device for cleaning the board surface according to claim 5, characterized in that, A boss (431) is provided on one side of the U-shaped bracket (43), and a motor (8) is installed on the upper end of the boss (431). The output shaft of the motor (8) is arranged in the direction of the cleaning roller (1). A second belt (9) is connected between the output shaft of the motor (8) and the rotating rod (221) so that the motor (8), the second belt (9), the rotating rod (221), the first belt (7) and the cleaning roller (1) form a linkage transmission structure.

9. The roller brush device for cleaning the board surface according to claim 1, characterized in that, The roller brush (11) is made of a flexible elastic material and is fixed to the outer periphery of the shaft (12).

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