A high-precision self-cleaning cutting device for gypsum board

Abstract

This invention discloses a high-precision self-cleaning cutting device for gypsum board, comprising a cutting device, a cleaning device, and a movable transmission structure. The cleaning device includes a mounting arc chamber, within which a movable arc seat is movably disposed. A first mounting plate and a second mounting plate are mounted on the movable arc seat, each equipped with a brush blade. The first mounting plate moves within the mounting arc chamber driven by the rotation of the upper cutting blade, and the movable arc seat follows the movement of the first mounting plate. The movable transmission structure transmits the movement of the movable arc seat to the second mounting plate, causing the second mounting plate to move forward relative to the movable arc seat, and thus clamping the upper cutting blade between the first and second mounting plates. In this invention, after the upper cutting blade contacts the brush blade, they move together, resulting in relative movement in the width direction of the brush blade. This relative friction causes the slurry on the upper cutting blade to adhere to the brush blade, cleaning the upper cutting blade once per rotation.

Description

Technical Field

[0001] This invention relates to the field of gypsum board cutting technology, specifically to a high-precision self-cleaning cutting device for gypsum board. Background Technology

[0002] In the gypsum board production process, the paper-faced gypsum board that has not yet dried after molding needs to be cut to a fixed length online before it can be sent to the dryer for drying. The cutting machine is a key piece of equipment in the gypsum board production line. Its function is to cut and group the continuously formed wet gypsum board. The hardware of the high-precision gypsum board cutting system mainly includes a Siemens motion controller, a Siemens dual-axis motor module, and a Siemens servo motor. The output shaft of the Siemens servo upper cutter motor is directly connected to the upper cutter, and the output shaft of the Siemens servo lower cutter motor is directly connected to the lower cutter. The upper and lower cutters cut the gypsum board.

[0003] The objects cut by existing technology are usually paper-faced gypsum boards that have not yet dried. During the cutting process, the cutter is easily contaminated with powder and gypsum paste. Over time, the accumulation affects the normal use of the cutter and the accuracy of the cut, resulting in poor cutting effect.

[0004] Therefore, existing cutting devices have the following technical problems: the accumulation of powder and plaster slurry on the cutting blades of existing cutting machines after long-term use affects the normal use of the cutting blades. Summary of the Invention

[0005] Therefore, the present invention provides a high-precision self-cleaning cutting device for gypsum board, which effectively solves the problem that the accumulation of powder and gypsum paste on the cutting blade of the cutting machine after long-term use affects the normal use of the cutting blade.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: a high-precision self-cleaning cutting device for gypsum board, comprising:

[0007] A frame is installed directly above the conveyor rollers. A cutting device is mounted on the frame. The cutting device has an upper cutter that can rotate to cut the plasterboard located below when it rotates to the bottom. The length of the upper cutter is not less than the thickness of the plasterboard.

[0008] A cleaning device is installed directly above the frame. The cleaning device has a mounting arc chamber, and a movable arc seat is movably disposed in the mounting arc chamber. A first mounting plate is fixedly installed on the movable arc seat, and a second mounting plate is movably installed in the movable arc seat. Brush blades are installed on both the first mounting plate and the second mounting plate. The first mounting plate moves in the mounting arc chamber under the rotation of the upper cutter, and the movable arc seat moves with the first mounting plate.

[0009] A movable transmission structure is disposed between the second mounting plate and the movable arc seat. The movable transmission structure transmits the motion of the movable arc seat to the second mounting plate, so that the second mounting plate moves forward relative to the movable arc seat, and the second mounting plate gradually moves closer to the first mounting plate, so that the upper cutter is clamped between the first mounting plate and the second mounting plate.

[0010] The center position of the upper cutter's rotation is higher than the center position corresponding to the arc movement trajectory of the first mounting plate and the second mounting plate, so that the upper cutter and the brush plate move together during their joint movement and relative movement occurs in the width direction of the brush plate.

[0011] Furthermore, both the first mounting plate and the second mounting plate have an L-shaped structure;

[0012] The ends of the first mounting plate and the second mounting plate are directly opposite the center position of the mounting arc chamber.

[0013] Furthermore, a slot is provided on the inner wall of the bottom of the mounting arc chamber, and the ends of the first mounting plate and the second mounting plate extend outside the slot;

[0014] The upper cutting blade tip can extend into the slot.

[0015] Furthermore, the movable transmission structure includes a movable cavity disposed within the movable arc seat, a connecting bolt fixedly disposed within the movable cavity, and a transmission gear rotatably disposed on the connecting bolt;

[0016] The second mounting plate is movably disposed in the movable cavity. A connecting block is fixed in the mounting arc chamber. A connecting arc rod is fixed on the connecting block. First meshing teeth are evenly spaced on the connecting arc rod. The side of the first meshing teeth meshes with the transmission gear.

[0017] The first mounting plate has a through-hole for the connecting arc rod to pass through, and the inner wall of the movable arc seat has a connecting arc groove for the connecting block to pass through.

[0018] Furthermore, the second mounting plate consists of a front end plate and a rear end plate;

[0019] The front end plate has a connecting groove, and the rear end plate is slidably disposed in the connecting groove. The upper surface of the front end plate is provided with second meshing teeth at equal intervals away from the opening of the connecting groove, and the upper surface of the rear end plate is provided with third meshing teeth at equal intervals. Both the second meshing teeth and the third meshing teeth mesh with the transmission gear, and the distance between adjacent second meshing teeth and the distance between adjacent third meshing teeth are the same.

[0020] Furthermore, a mounting spring is provided at the end of the rear end plate, with one end of the mounting spring mounted on the rear end plate and the other end framed and connected to the inner wall of the connecting groove.

[0021] Furthermore, the lowest position of the end of the rear plate is not lower than the height of the upper surface of the gypsum board.

[0022] Furthermore, the lowest point of the mounting arc chamber is higher than the highest point of the plasterboard;

[0023] The installation arc chamber is provided with a reset structure, which includes a fixed cylinder installed in the installation arc chamber and a telescopic cylinder slidably disposed in the fixed cylinder.

[0024] The end of the telescopic cylinder is movably disposed inside the fixed cylinder. Both the fixed cylinder and the telescopic cylinder are arc-shaped. The end of the telescopic cylinder is connected to the fixed cylinder by a connecting spring. The end of the telescopic cylinder away from the fixed cylinder is connected to the side wall of the first mounting plate.

[0025] Furthermore, mounting grooves are provided on both the side of the first mounting plate near the second mounting plate and the side of the second mounting plate near the first mounting plate, and the brush blade is installed in the mounting groove by bolts.

[0026] Furthermore, the cutting device includes a rotating shaft mounted on the frame and a drive motor connected to the rotating shaft;

[0027] The upper cutter is mounted on the rotating shaft, and the length of the upper cutter along the rotating shaft is less than the lengths of the first mounting plate and the second mounting plate.

[0028] Compared with the prior art, the present invention has the following advantages:

[0029] In this invention, a cleaning device is installed directly above the frame. The cleaning device includes an installation arc chamber, within which a movable arc seat is movably installed. A first mounting plate is fixedly installed on the movable arc seat, and a second mounting plate is movably installed within the movable arc seat. Brush blades are installed on both the first and second mounting plates. The upper cutter gradually rotates to the first mounting plate, causing the first mounting plate to rotate and the second mounting plate to gradually approach the first mounting plate and clamp the upper cutter. After the upper cutter contacts the brush blades, they move together and relative movement occurs in the width direction of the brush blades. The relative friction causes the plaster paste on the upper cutter to adhere to the brush blades. The plaster paste is cleaned once for each rotation, preventing the accumulation of plaster paste from affecting the normal use of the upper cutter. Attached Figure Description

[0030] 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.

[0031] Figure 1 This is a schematic diagram of the initial state of a high-precision self-cleaning gypsum board cutting device provided in an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of a high-precision self-cleaning gypsum board cutting device provided in an embodiment of the present invention, showing the upper cutting blade cutting gypsum board.

[0033] Figure 3 This is a schematic diagram of the structure of a high-precision self-cleaning gypsum board cutting device according to an embodiment of the present invention, showing the cutting blade rotating past the second mounting plate.

[0034] Figure 4 This is a schematic diagram of the structure of a high-precision self-cleaning gypsum board cutting device provided in an embodiment of the present invention, in which the upper cutter rotates to abut against the first mounting plate;

[0035] Figure 5 This is a schematic diagram of the structure of a high-precision self-cleaning gypsum board cutting device according to an embodiment of the present invention, showing how the first mounting plate and the second mounting plate clamp the upper cutting blade.

[0036] Figure 6 This is a schematic diagram of the cross-sectional structure of the installation arc chamber in an embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of the second mounting plate meshing with the transmission gear in an embodiment of the present invention.

[0038] Figure 8 This is a schematic diagram of the cross-sectional structure of the second mounting plate in an embodiment of the present invention;

[0039] Figure 9 This is a schematic diagram of the front-end board in an embodiment of the present invention;

[0040] Figure 10 This is a top view of the second mounting plate in an embodiment of the present invention;

[0041] Figure 11 This is a schematic diagram of the installation structure of the brush blade in an embodiment of the present invention.

[0042] The labels in the diagram represent the following:

[0043] 1-Frame; 2-Cleaning device; 3-Modible transmission structure; 4-Conveyor roller conveyor; 5-Cut device; 6-Gypsum board; 8-Reset structure;

[0044] 21-Installation arc chamber; 22-Modible arc seat; 23-First mounting plate; 24-Second mounting plate; 25-Brush blade; 26-Slot; 27-Mounting slot; 28-Bolt;

[0045] 31-Moving cavity; 32-Connecting bolt; 33-Transmission gear; 34-Connecting block; 35-Connecting arc rod; 36-First meshing tooth; 37-Through opening; 38-Connecting arc groove;

[0046] 51-Upper cutter; 52-Rotating shaft;

[0047] 81-Fixed cylinder; 82-Telescopic cylinder;

[0048] 241-Front end plate; 242-Rear end plate; 243-Connecting groove; 244-Second meshing tooth; 245-Third meshing tooth; 246-Mounting spring. Detailed Implementation

[0049] 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.

[0050] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the present invention provides a high-precision self-cleaning cutting device for gypsum board, comprising a frame 1, a cleaning device 2, and a movable transmission structure 3.

[0051] The frame 1 is installed directly above the conveyor roller 4. A cutting device 5 is installed on the frame 1. The cutting device 5 has an upper cutter 51. The upper cutter 51 can rotate to cut the plasterboard 6 located below when it rotates to the bottom. The length of the upper cutter 51 is not less than the thickness of the plasterboard 6.

[0052] The cleaning device 2 is installed directly above the frame 1. The cleaning device 2 has a mounting arc chamber 21, a movable arc seat 22 is movably disposed in the mounting arc chamber 21, a first mounting plate 23 is fixedly mounted on the movable arc seat 22, and a second mounting plate 24 is movably mounted in the movable arc seat 22. Brush blades 25 are mounted on both the first mounting plate 23 and the second mounting plate 24. The first mounting plate 23 moves in the mounting arc chamber 21 under the rotation of the upper cutter 51, and the movable arc seat 22 moves with the first mounting plate 23.

[0053] The movable transmission structure 3 is disposed between the second mounting plate 24 and the movable arc seat 22. The movable transmission structure 3 transmits the motion of the movable arc seat 22 to the second mounting plate 24, so that the second mounting plate 24 moves forward relative to the movable arc seat 22, and the second mounting plate 24 gradually approaches the first mounting plate 23, so that the upper cutter 51 is clamped between the first mounting plate 23 and the second mounting plate 24.

[0054] The center position of the upper cutter 51 is higher than the center position corresponding to the arc movement trajectory of the first mounting plate 23 and the second mounting plate 24, so that the upper cutter 51 and the brush plate 25 move together during their joint movement, and there is relative movement in the width direction of the brush plate 25.

[0055] In this invention, the cutting device 5 can be configured as two, which are respectively installed on the upper and lower sides of the plasterboard 6. The length of the cross-section of the upper cutting blade 51 is not less than the thickness of the plasterboard 6, so as to facilitate the smooth cutting of the plasterboard 6.

[0056] In this invention, a cleaning device 2 is provided directly above the frame 1. The cleaning device 2 includes an installation arc chamber 21, a movable arc seat 22 is movably disposed within the installation arc chamber 21, a first mounting plate 23 is fixedly mounted on the movable arc seat 22, and a second mounting plate 24 is movably mounted within the movable arc seat 22. Brush blades 25 are mounted on both the first mounting plate 23 and the second mounting plate 24. The upper cutter 51 gradually rotates to the first mounting plate 23, causing the first mounting plate 23 to rotate and the second mounting plate 24 to gradually approach the first mounting plate 23 and clamp the upper cutter 51. After the upper cutter 51 contacts the brush blades 25, they move together and move relative to each other in the width direction of the brush blades 25. The relative friction causes the plaster paste on the upper cutter 51 to adhere to the brush blades 25. The plaster paste is cleaned once for each rotation of the upper cutter 51 to avoid the accumulation of plaster paste affecting the normal use of the upper cutter 51.

[0057] To facilitate movement within the mounting chamber 21 and clamping of the upper cutter 51, both the first mounting plate 23 and the second mounting plate 24 are L-shaped structures. The main structures of the first mounting plate 23 and the second mounting plate 24 are located within the mounting chamber 21, and the ends of the first mounting plate 23 and the second mounting plate 24 clamp the upper cutter 51.

[0058] The clamping ends of the first mounting plate 23 and the second mounting plate 24 are aligned with the center position of the mounting arc chamber 21, so that the brush blades 25 on the first mounting plate 23 and the second mounting plate 24 can fit against the upper cutter 51 during rotation.

[0059] In order to avoid obstructing the rotation of the ends of the first mounting plate 23 and the second mounting plate 24, the present invention also makes the following design: a slot 26 is provided on the inner wall of the bottom of the mounting arc chamber 21, and the ends of the first mounting plate 23 and the second mounting plate 24 extend outside the slot 26.

[0060] The clamping ends of the first mounting plate 23 and the second mounting plate 24 can extend outside the slot 26, that is, outside the mounting arc chamber 21, so as to clamp the end of the upper cutter 51. Correspondingly, during the rotation of the upper cutter 51, the upper cutter 51 is initially outside the slot 26 (outside the mounting arc chamber 21). As the upper cutter 51 rotates and gradually approaches the top, the end of the upper cutter 51 can extend into the slot 26.

[0061] In this invention, the movable transmission structure 3 transmits the motion of the movable arc seat 22 to the second mounting plate 24, so that the second mounting plate 24 moves forward relative to the movable arc seat 22, and the second mounting plate 24 gradually approaches the first mounting plate 23, so that the upper cutter 51 is clamped between the first mounting plate 23 and the second mounting plate 24. The movable transmission structure 3 is a structure that drives the first mounting plate 23 and the second mounting plate 24 to approach each other.

[0062] The movable transmission structure 3 of the present invention adopts the following preferred embodiments, such as... Figure 1 As shown, the movable transmission structure 3 includes a movable cavity 31 disposed within the movable arc seat 22, a connecting bolt 32 fixedly disposed within the movable cavity 31, and a transmission gear 33 rotatably disposed on the connecting bolt 32. The second mounting plate 24 is movably disposed within the movable cavity 31. A connecting block 34 is fixed within the mounting arc chamber 21. A connecting arc rod 35 is fixed on the connecting block 34. First meshing teeth 36 are evenly spaced on the connecting arc rod 35. The side of the first meshing teeth 36 meshes with the transmission gear 33.

[0063] In the above embodiment, after the upper cutter 51 rotates to abut against the first mounting plate 23, the upper cutter 51 continues to rotate, driving the first mounting plate 23 to rotate. The first mounting plate 23 drives the movable arc seat 22 to move within the mounting arc chamber 21. During the movement of the movable arc seat 22, the transmission gear 33 is driven to move. The connecting arc rod 35 is fixed, so the connecting arc rod 35 and the transmission gear 33 move relative to each other. The movement of the connecting arc rod 35 relative to the transmission gear 33 drives the transmission gear 33 to rotate while moving.

[0064] During the movement of the first mounting plate 23, in order to avoid interference between the first mounting plate 23 and the connecting arc rod 35, such as Figure 1 and Figure 6 As shown, a through-hole 37 is provided on the first mounting plate 23 for the connecting arc rod 35 to pass through, and a connecting arc groove 38 is provided on the inner wall of the movable arc seat 22 for the connecting block 34 to pass through. During the movement, the connecting block 34 can pass directly through the connecting arc groove 38 without blocking the movable arc seat 22 in motion.

[0065] In this invention, the second mounting plate 24 adopts the following preferred embodiments, such as... Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the second mounting plate 24 is composed of a front end plate 241 and a rear end plate 242. The front end plate 241 has a connecting groove 243, and the rear end plate 242 is slidably disposed in the connecting groove 243. The upper end surface of the front end plate 241 is provided with second meshing teeth 244 at equal intervals away from the opening of the connecting groove 243, and the upper end surface of the rear end plate 242 is provided with third meshing teeth 245 at equal intervals. The second meshing teeth 244 and the third meshing teeth 245 both mesh with the transmission gear 33, and the distance between adjacent second meshing teeth 244 and the distance between adjacent third meshing teeth 245 are the same.

[0066] The rear end plate 242 is provided with a mounting spring 246. One end of the mounting spring 246 is mounted on the rear end plate 242, and the other end is framed and connected to the inner wall of the connecting groove 243.

[0067] During the movement of the movable arc seat 22, the second mounting plate 24 will move along with it. The transmission gear 33 rotates and can drive the front plate 241 and the rear plate 242 to move forward relative to the movable arc seat 22 through the second meshing tooth 245. The first mounting plate 24 remains stationary relative to the movable arc seat 22. Therefore, the first mounting plate 24 and the second mounting plate 24 approach each other during the above-mentioned movement.

[0068] Driven by the transmission gear 33, the second meshing tooth 245 moves forward a distance, and the rear end plate 242 moves to the side of the transmission gear 33. The transmission gear 33 and the third meshing tooth 245 gradually mesh. Driven by the transmission gear 33, the rear end plate 242 also gradually moves forward. During the above process, the second mounting plate 24 continues to move forward until the second mounting plate 24 abuts against the upper cutter 51. The transmission gear 33 continues to rotate, and the movable arc seat 22 continues to move forward. At this time, the front end plate 241 abuts against the upper cutter 51 and can no longer move forward relative to the first mounting plate 23. Therefore, at this time, the front end plate 241 and the first mounting plate 23 remain relatively stationary. The rear end plate 242 moves forward relative to the first mounting plate 23 under the action of the transmission gear 33, and the rear end plate 242 gradually retracts into the front end plate 241.

[0069] After the upper cutting blade 51 is clamped by the first mounting plate 23 and the second mounting plate 24, in order to allow relative movement between the upper cutting blade 51 and the first mounting plate 23 and the second mounting plate 24, the center position of the rotation of the upper cutting blade 51 needs to be higher than the center position corresponding to the arc movement trajectory of the first mounting plate 23 and the second mounting plate 24. In this case, the upper cutting blade 51 gradually moves away from the first mounting plate 23 and the second mounting plate 24 during the counterclockwise rotation. During this process, the end of the upper cutting blade 51 gradually separates from the first mounting plate 23 and the second mounting plate 24, and friction is generated between them to achieve the cleaning of gypsum slurry.

[0070] In order to avoid the rear end plate 242 obstructing the transportation of gypsum board 6, the present invention also makes the following design: the lowest position of the end of the rear end plate 242 is not lower than the height of the upper surface of gypsum board 6.

[0071] In order to avoid the installation of the arc chamber 21 from obstructing the transportation of the gypsum board 6, the present invention is designed such that the lowest point of the installation arc chamber 21 is higher than the highest point of the gypsum board 6.

[0072] In order to ensure that the first mounting plate 23 and the second mounting plate 24 can be reset when the upper cutter 51 is disengaged from the first mounting plate 23 and the second mounting plate 24, the present invention is designed as follows: a reset structure 8 is provided in the mounting arc chamber 21. The reset structure 8 includes a fixed cylinder 81 installed in the mounting arc chamber 21 and a telescopic cylinder 82 slidably disposed in the fixed cylinder 81. The end of the telescopic cylinder 82 is movably disposed in the fixed cylinder 81. Both the fixed cylinder 81 and the telescopic cylinder 82 are arc-shaped. The end of the telescopic cylinder 82 is connected to the fixed cylinder 81 by a connecting spring. The end of the telescopic cylinder 82 away from the fixed cylinder 81 is connected to the side wall of the first mounting plate 23.

[0073] During the counterclockwise rotation of the first mounting plate 23 and the second mounting plate 24, the telescopic cylinder 82 gradually approaches the fixed cylinder 81, and the connecting spring is compressed. When the upper cutter 51 disengages from between the first mounting plate 23 and the second mounting plate 24, under the action of the connecting spring, the first mounting plate 23 and the movable arc seat 22 both rotate clockwise to reset. During this process, the transmission gear 33 rotates in the opposite direction, causing the second mounting plate 24 to also reset.

[0074] In this invention, the brush blade 25 is detachable and can be replaced at regular intervals. Figure 11 As shown, mounting grooves 27 are provided on the side of the first mounting plate 23 near the second mounting plate 24 and on the side of the second mounting plate 24 near the first mounting plate 23. The brush blade 25 is installed in the mounting groove 27 by bolts 28.

[0075] In this invention, the cutting device 5 includes a rotating shaft 52 mounted on the frame 1, a drive motor connected to the rotating shaft 52, and an upper cutter 51 mounted on the rotating shaft 52.

[0076] In order for the first mounting plate 23 and the second mounting plate 24 to completely cover the end area of ​​the upper cutter 51, the length of the upper cutter 51 along the rotation axis 52 direction needs to be less than the length of the first mounting plate 23 and the second mounting plate 24.

[0077] In summary, the main implementation process of this invention is as follows:

[0078] like Figure 2 As shown, when the plasterboard 6 is transported to the bottom of the cutting device 5, the upper cutting blade 51 rotates with the rotating shaft 52 to the bottom to cut the plasterboard 6;

[0079] like Figure 3 and Figure 4 As shown, after the cutting is completed, when the upper cutter 51 rotates past the second mounting plate 24 and abuts against the first mounting plate 23, the upper cutter 51 continues to rotate, driving the first mounting plate 23 to rotate. The first mounting plate 23 drives the movable arc seat 22 to move within the mounting arc chamber 21. During the movement of the movable arc seat 22, the transmission gear 33 is driven to move. The connecting arc rod 35 moves relative to the transmission gear 33, causing the transmission gear 33 to rotate while moving.

[0080] During the movement of the movable arc seat 22, the second mounting plate 24 moves accordingly. The transmission gear 33 rotates, which drives the front plate 241 and the rear plate 242 to move forward relative to the movable arc seat 22 through the second meshing tooth 245. Under the drive of the transmission gear 33, the rear plate 242 gradually moves to the side of the transmission gear 33, and the transmission gear 33 gradually meshes with the third meshing tooth 245. Under the drive of the transmission gear 33, the rear plate 242 also gradually moves forward. During the above process, the second mounting plate 24 continues to move forward until the second mounting plate 24 abuts against the upper cutter 51. Figure 5 As shown, the first mounting plate 24 and the second mounting plate 24 clamp the upper cutter 51;

[0081] As the upper cutter 51 rotates counterclockwise, its end gradually detaches from the first mounting plate 23 and the second mounting plate 24, generating friction between them to clean the gypsum slurry.

[0082] After the upper cutter 51 disengages from the first mounting plate 23 and the second mounting plate 24, the first mounting plate 23 and the movable arc seat 22 rotate clockwise to reset under the action of the connecting spring.

[0083] 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 high-precision self-cleaning cutting device for gypsum board, characterized in that, have: A frame (1) is installed directly above the conveyor roller (4). A cutting device (5) is installed on the frame (1). The cutting device (5) has an upper cutter (51). The upper cutter (51) is rotatable so as to cut the plasterboard (6) located below when it is rotated to the bottom. The length of the upper cutter (51) is not less than the thickness of the plasterboard (6). A cleaning device (2) is installed directly above the frame (1). The cleaning device (2) has an installation arc chamber (21). A movable arc seat (22) is movably disposed in the installation arc chamber (21). A first mounting plate (23) is fixedly installed on the movable arc seat (22). A second mounting plate (24) is movably installed in the movable arc seat (22). Brush blades (25) are installed on both the first mounting plate (23) and the second mounting plate (24). The first mounting plate (23) moves in the installation arc chamber (21) under the rotation of the upper cutter (51). The movable arc seat (22) moves with the first mounting plate (23). A movable transmission structure (3) is disposed between the second mounting plate (24) and the movable arc seat (22). The movable transmission structure (3) transmits the motion of the movable arc seat (22) to the second mounting plate (24) so ​​that the second mounting plate (24) moves forward relative to the movable arc seat (22), and the second mounting plate (24) gradually approaches the first mounting plate (23) so that the upper cutter (51) is clamped between the first mounting plate (23) and the second mounting plate (24). The center position of the upper cutter (51) is higher than the center position of the arc movement trajectory of the first mounting plate (23) and the second mounting plate (24), so that the upper cutter (51) and the brush plate (25) move together after contacting each other and have relative movement in the width direction of the brush plate (25). Both the first mounting plate (23) and the second mounting plate (24) are L-shaped structures; The ends of the first mounting plate (23) and the second mounting plate (24) are directly opposite the center position of the mounting arc chamber (21); The bottom inner wall of the mounting arc chamber (21) is provided with a slot (26), and the ends of the first mounting plate (23) and the second mounting plate (24) extend outside the slot (26); The end of the upper cutter (51) can extend into the slot (26).

2. The high-precision self-cleaning gypsum board cutting device according to claim 1, characterized in that, The movable transmission structure (3) includes a movable cavity (31) disposed in the movable arc seat (22), a connecting bolt (32) fixedly disposed in the movable cavity (31), and a transmission gear (33) rotatably disposed on the connecting bolt (32). The second mounting plate (24) is movably disposed in the movable cavity (31). A connecting block (34) is fixed in the mounting arc chamber (21). A connecting arc rod (35) is fixed on the connecting block (34). First meshing teeth (36) are evenly spaced on the connecting arc rod (35). The side of the first meshing teeth (36) meshes with the transmission gear (33). The first mounting plate (23) has a through opening (37) for the connecting arc rod (35) to pass through, and the inner wall of the movable arc seat (22) has a connecting arc groove (38) for the connecting block (34) to pass through.

3. The high-precision self-cleaning gypsum board cutting device according to claim 2, characterized in that, The second mounting plate (24) consists of a front end plate (241) and a rear end plate (242); The front end plate (241) has a connecting groove (243) and the rear end plate (242) is slidably disposed in the connecting groove (243). The upper end surface of the front end plate (241) is provided with second meshing teeth (244) at equal intervals away from the opening of the connecting groove (243). The upper end surface of the rear end plate (242) is provided with third meshing teeth (245) at equal intervals. The second meshing teeth (244) and the third meshing teeth (245) are both meshed with the transmission gear (33), and the distance between adjacent second meshing teeth (244) and the distance between adjacent third meshing teeth (245) are the same.

4. The high-precision self-cleaning gypsum board cutting device according to claim 3, characterized in that, The end of the rear plate (242) is provided with a mounting spring (246), one end of which is mounted on the rear plate (242) and the other end is framed and connected to the inner wall of the connecting groove (243).

5. The high-precision self-cleaning gypsum board cutting device according to claim 4, characterized in that, The lowest position of the end of the rear plate (242) is not lower than the height of the upper surface of the gypsum board (6).

6. The high-precision self-cleaning gypsum board cutting device according to claim 1, characterized in that, The lowest point of the installation arc chamber (21) is higher than the highest point of the gypsum board (6); The installation arc chamber (21) is provided with a reset structure (8), which includes a fixed cylinder (81) installed in the installation arc chamber (21) and a telescopic cylinder (82) slidably disposed in the fixed cylinder (81). The end of the telescopic cylinder (82) is movably disposed inside the fixed cylinder (81). Both the fixed cylinder (81) and the telescopic cylinder (82) are arc-shaped. The end of the telescopic cylinder (82) is connected inside the fixed cylinder (81) by a connecting spring. The end of the telescopic cylinder (82) away from the fixed cylinder (81) is connected to the side wall of the first mounting plate (23).

7. The high-precision self-cleaning gypsum board cutting device according to claim 1, characterized in that, Mounting grooves (27) are provided on the side of the first mounting plate (23) near the second mounting plate (24) and on the side of the second mounting plate (24) near the first mounting plate (23). The brush blade (25) is installed in the mounting groove (27) by bolts (28).

8. The high-precision self-cleaning gypsum board cutting device according to claim 1, characterized in that, The cutting device (5) includes a rotating shaft (52) mounted on the frame (1) and a drive motor connected to the rotating shaft (52); The upper cutter (51) is mounted on the rotating shaft (52), and the length of the upper cutter (51) along the direction of the rotating shaft (52) is less than the length of the first mounting plate (23) and the second mounting plate (24).

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