Gypsum board drywall end trimming system and method

Abstract

The present application relates to the technical fields of gypsum board manufacturing and processing, and discloses a gypsum board dry board end edge cutting system and method, which comprises a workbench, a pre-cut saw, a crushing saw, a hydraulic cylinder, a plurality of rotating rollers and a direction-changing driving assembly. The workbench is rotatably connected with a mounting plate. The output end of the hydraulic cylinder is rotatably and slidably connected with one end of the mounting plate. The pre-cut saw is fixedly installed on the mounting plate. The crushing saw is located downstream of the material conveying direction of the pre-cut saw. The direction-changing driving assembly connects the rotating rollers with the mounting plate. When the hydraulic cylinder drives the mounting plate and the pre-cut saw to be lifted upward, the direction-changing driving assembly synchronously drives the rotating rollers to be displaced downward and abut against the upper surface of the gypsum board. The rotating rollers can longitudinally limit the cutting of the board before the board enters the pre-cut area. The longitudinal displacement of the gypsum board can be constrained during edge cutting, the violent vibration of the board during sawing and cutting is alleviated, and the problem of the decline of the edge cutting quality caused by the violent vibration of the board during sawing and cutting is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of gypsum board manufacturing and processing technology, specifically to a gypsum board dry board end trimming system and method. Background Technology

[0002] During the production of gypsum board, wet boards need to undergo a drying process to remove internal moisture. During the drying process, the edges of the gypsum board facing paper are prone to warping, curling, and other deformation defects due to high-temperature baking. Therefore, after the gypsum board is dried, the deformed parts of the edges need to be cut off and crushed.

[0003] In the prior art, in order to avoid the problem of roughening the edge of the gypsum board and lifting or tearing the protective paper caused by the shredder cutting directly, a pre-cutting saw is usually used to pre-cut a groove on the edge of the gypsum board before the shredder is used to shred it. However, during the cutting process, the board is subjected to the cutting of the pre-cutting saw and the shredder at the same time, which will cause uneven force on the board and make it prone to violent vibration, thus affecting the quality of the cut edge.

[0004] In summary, when gypsum board is cut and crushed in the existing technology, the board is subjected to uneven stress due to the simultaneous cutting by the pre-cutting saw and the crushing saw, which makes the board prone to vibration and deviation, resulting in a decline in the quality of the cut edges. Summary of the Invention

[0005] The purpose of this invention is to provide a gypsum board dry board end trimming system and method to solve the technical problem in the prior art where the board is simultaneously subjected to cutting by a pre-cutting saw and a crushing saw, resulting in uneven stress on the board, easy vibration and deviation, and a decline in trimming quality.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0007] A gypsum board dry board end trimming system, comprising:

[0008] A workbench, on which a mounting plate is rotatably connected;

[0009] A pre-cutting saw, fixedly mounted on the mounting plate, is used for pre-cutting grooves on the end edges of the gypsum board;

[0010] A shredder saw is fixedly installed on the workbench and located downstream of the material conveying direction of the pre-cutting saw. It is used to shred and cut the edge of the pre-cut gypsum board.

[0011] A hydraulic cylinder is disposed below the mounting plate, and the output end of the hydraulic cylinder is rotatably and slidably connected to the end of the mounting plate away from its rotating end;

[0012] Several rotating rollers are located on one side of the pre-cutting saw and suspended above the pre-cutting saw.

[0013] A reversing drive assembly, connecting the rotating rollers and the mounting plate, is used to synchronously drive several of the rotating rollers to move downwards and abut against the upper surface of the gypsum board when the hydraulic cylinder drives the mounting plate and the pre-cutting saw to lift upwards.

[0014] Furthermore, the reversing drive component includes:

[0015] The bracket is fixedly connected to the workbench;

[0016] The box body is fixedly connected to the bracket;

[0017] The first toothed rack is disposed inside the box body on the side away from the rotating roller;

[0018] The second rack is disposed inside the box body on the side near the rotating roller;

[0019] A back plate is provided on each of the first and second racks on the side opposite to the teeth. The back plate is vertically slidably connected to the side wall of the box body so as to drive the first and second racks to move vertically within the box body.

[0020] A gear is rotatably connected to the housing and located between the first rack and the second rack, and the gear is meshed with both the first rack and the second rack for transmission.

[0021] A connecting plate is fixedly connected to the back plate of the second rack on the side opposite to the teeth, and is located above the rotating roller. A mounting frame is sleeved on the outer periphery of several rotating rollers, and the lower ends of several rotating rollers pass through the mounting frame and are exposed. Each rotating roller is rotatably connected to the mounting frame.

[0022] A first spring, the two ends of which are fixedly connected to the connecting plate and the mounting frame respectively, and a limit rod is fixed at the top of the mounting frame. The upper end of the limit rod passes through the connecting plate and is vertically slidably connected to the connecting plate.

[0023] Furthermore, a push rod is fixedly connected to the mounting plate, and a baffle is fixedly connected to the back plate connected to the first rack. A clearance groove is formed through the bottom wall of the box. The upper end of the push rod passes through the clearance groove and is slidably connected to the clearance groove. The top of the push rod abuts against the bottom surface of the baffle to push the first rack to move vertically.

[0024] Furthermore, a second spring is fixedly connected between the back plate connecting the first rack and the inner bottom wall of the box body.

[0025] Furthermore, an extension frame is fixed below the workbench, the extension frame extends horizontally toward the side away from the workbench, a movable frame is provided at the end of the extension frame away from the workbench, a slide rail is fixed on the extension frame, a slider is fixed at the bottom of the movable frame, the slider is slidably connected to the slide rail, and a plurality of rotating rollers are fixed on the surface of the movable frame near the workbench, the roller surfaces of the plurality of rotating rollers contact the end edge of the gypsum board.

[0026] Furthermore, several of the rollers are inclined, with the inclination direction matching the gypsum board conveying direction, so as to abut against the gypsum board while pushing the gypsum board to laterally adhere to the roller surface.

[0027] Furthermore, a fastening bolt is rotatably connected to the slider, the screw end of the fastening bolt passing through the slider and abutting against the slide rail. By tightening the fastening bolt, the locking and fixing, as well as the loosening and sliding of the slider and the slide rail can be achieved.

[0028] To address the aforementioned technical problems, the present invention further provides the following technical solution:

[0029] A method for trimming the ends of a gypsum board dry board includes the following steps:

[0030] S1. Move and adjust the moving frame to adjust the distance between the rotating roller and the pre-cutting saw so that the distance matches the target length of the gypsum board after cutting.

[0031] S2. Place the dry gypsum board to be processed on the conveying equipment and convey the board at a uniform speed. During the conveying process, the side of the dry gypsum board to be cut is set towards the workbench, and the other side of the board is in rolling contact with the rotating roller. The rotating roller limits and guides the dry gypsum board to ensure that the board is conveyed smoothly and the position is accurate.

[0032] S3. When the dry gypsum board is conveyed to the processing area of ​​the workbench by the conveying equipment, the hydraulic cylinder starts to extend, driving the mounting plate and the pre-cutting saw assembled on the mounting plate to lift upward as a whole; at the same time, the pre-cutting saw and the crushing saw are started synchronously.

[0033] S4. While the pre-cutting saw is raised upward, the variable direction drive assembly drives several of the rotating rollers to move downward, so that the rollers abut against the upper surface of the dry gypsum board, thus longitudinally limiting the board and effectively preventing the board from shifting or shaking during the cutting process. At the same time, the tilting rotating rollers push the gypsum board to conform to the rollers for conveying, effectively preventing the board from shifting laterally during the cutting and crushing process. After the rollers limit the board, the pre-cutting saw, which has risen to the position, contacts the position to be cut on the dry gypsum board and cuts a regular positioning groove on the surface of the board.

[0034] S5. The gypsum board dry board with pre-cut indentation continues to move along with the conveying equipment. The excess edge area outside the indentation of the board is cut off and crushed by the crushing saw to completely remove the excess edge material of the board and finally complete the overall edge cutting operation of the gypsum board dry board.

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

[0036] In this invention, the power output of the hydraulic cylinder driving the mounting plate to lift, combined with the power reversing transmission of the reversing drive assembly, synchronously drives the roller to move down and abut against the upper surface of the gypsum board during the operation of the first pre-cutting saw moving upwards and approaching the board. This allows the roller to complete the longitudinal limit of the board during cutting before the board enters the pre-cutting area, which can constrain the longitudinal displacement of the gypsum board during edge cutting, alleviate the severe vibration of the board during sawing, and effectively improve the problem of reduced edge cutting quality caused by severe vibration of the board during sawing. 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 in the following description 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 provided for an embodiment of this application.

[0039] Figure 2 This is a cross-sectional view of the housing of the reversing drive component provided in an embodiment of this application.

[0040] Figure 3 This is a schematic diagram of the overall structure with a rotating roller provided in an embodiment of this application.

[0041] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle.

[0042] The reference numerals in the figure are as follows:

[0043] 1. Workbench; 2. Mounting plate; 3. Pre-cutting saw; 4. Crushing saw; 5. Hydraulic cylinder; 6. Rotary roller; 7. Directional drive assembly; 71. Bracket; 72. Box body; 73. First rack; 74. Second rack; 75. Gear; 76. Connecting plate; 77. Mounting frame; 78. First spring; 79. Limiting rod; 710. Back plate; 8. Top rod; 9. Baffle; 10. Clearance groove; 11. Second spring; 12. Extension frame; 13. Moving frame; 14. Slide rail; 15. Slider; 16. Rotary roller; 17. Fastening bolt. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] like Figure 1-4 As shown, the present invention provides a gypsum board dry board end trimming system and method. In practical applications, it is usually necessary to divide a large gypsum board into two smaller boards. The dividing surface is relatively flat, so only the uncut edges of the smaller boards need to be crushed and trimmed. The present invention mainly uses a rotating roller that abuts against the surface of the gypsum board dry board during pre-cutting and crushing to provide longitudinal restraint. This can alleviate the severe vibration of the board during sawing and effectively improve the problem of reduced edge quality caused by severe vibration of the board during sawing.

[0046] This dry gypsum board end trimming system features:

[0047] Workbench 1, on which mounting plate 2 is rotatably connected.

[0048] The pre-cutting saw 3 is fixedly installed on the mounting plate 2 and is used to pre-cut grooves on the end edges of the gypsum board.

[0049] The crushing saw 4 is fixedly installed on the workbench 1 and is located downstream of the material conveying direction of the pre-cutting saw 3. It is used to crush and cut the edge of the pre-cut gypsum board.

[0050] Hydraulic cylinder 5 is located below mounting plate 2, and the output end of hydraulic cylinder 5 is rotatably and slidably connected to the end of mounting plate 2 away from its rotating end.

[0051] Several rotating rollers 6 are located on one side of the pre-cutting saw 3 and suspended above the pre-cutting saw 3.

[0052] The reversing drive assembly 7 connects the rotating roller 6 and the mounting plate 2. When the hydraulic cylinder 5 drives the mounting plate 2 and the pre-cutting saw 3 to lift upwards, it synchronously drives several rotating rollers 6 to move downwards and abut against the upper surface of the gypsum board.

[0053] In this manner, the conveying equipment conveys dry gypsum board at a uniform speed. The workbench 1 is located on one side of the conveying equipment. When the board is conveyed to the processing area, the hydraulic cylinder 5 starts to drive the mounting plate 2 and the pre-cutting saw 3 to lift upward. At the same time, the power is reversed through the reversing drive assembly 7. As the pre-cutting saw 3 moves upward and approaches the board, it simultaneously drives several rollers 6 above to move downward, so that the rollers 6 abut against the surface of the gypsum board in advance, generating a certain pressure on the gypsum board.

[0054] When roller 6 first contacts the gypsum board, the gypsum board has not yet entered the pre-cutting area of ​​pre-cutting saw 3. After roller 6 comes into contact with the board, pre-cutting saw 3 continues to rise to the target height and cuts a groove on the board. Then the board passes through crushing saw 4, which crushes and cuts the edge area of ​​the board outside the groove. The force of roller 6 restricts the longitudinal displacement of the board to a certain extent, effectively improving the problem of reduced edge quality caused by violent vibration of the board during sawing, and ensuring the accuracy of pre-cutting and subsequent crushing and cutting.

[0055] The reversing drive component 7 includes:

[0056] The bracket 71 is fixedly connected to the workbench 1.

[0057] The box body 72 is fixedly connected to the bracket 71.

[0058] The first rack 73 is located inside the box 72 on the side away from the rotating roller 6.

[0059] The second rack 74 is located inside the box 72 on one side near the rotating roller 6.

[0060] A back plate 710 is provided on each side of the first rack 73 and the second rack 74 away from the teeth. The back plate 710 is vertically slidably connected to the side wall of the box body 72 so as to drive the first rack 73 and the second rack 74 to move vertically within the box body 72.

[0061] Gear 75 is rotatably connected to housing 72 and is located between first rack 73 and second rack 74. Gear 75 is meshed with both first rack 73 and second rack 74 for transmission.

[0062] The connecting plate 76 is fixedly connected to the back plate 710 of the second rack 74 on the side opposite to the teeth, and is located above the rotating roller 6. A mounting frame 77 is sleeved on the outer periphery of several rotating rollers 6, and the lower ends of several rotating rollers 6 pass through the mounting frame 77 and are exposed. Each rotating roller 6 is rotatably connected to the mounting frame 77.

[0063] The first spring 78 has its two ends fixedly connected to the connecting plate 76 and the mounting frame 77, respectively. A limit rod 79 is fixed at the top of the mounting frame 77. The upper end of the limit rod 79 passes through the connecting plate 76 and is vertically slidably connected to the connecting plate 76.

[0064] A push rod 8 is fixedly connected to the mounting plate 2, and a baffle 9 is fixedly connected to the back plate 710 that connects to the first rack 73. A clearance groove 10 is opened through the bottom wall of the box body 72. The upper end of the push rod 8 passes through the clearance groove 10 and is slidably connected to the clearance groove 10. The top of the push rod 8 abuts against the bottom surface of the baffle 9 to push the first rack 73 to move vertically.

[0065] A second spring 11 is fixedly connected between the back plate 710 connecting the first rack 73 and the inner bottom wall of the box body 72.

[0066] Among them, under the elastic force of the first spring 78, if the gypsum board vibrates violently during pre-cutting or sawing, the first spring 78 can buffer the generated vibration.

[0067] In this manner, when the pre-cutting saw 3 is raised along with the mounting plate 2, the mounting plate 2 drives the top rod 8 upward. The top rod 8 pushes the baffle plate 9, the back plate 710, and the first rack 73 to slide vertically upward along the box body 72. Through the meshing and reversing transmission of the intermediate gear 75, the second rack 74 is driven to slide vertically downward, driving the connecting plate 76, the mounting frame 77, and the rotating roller 6 to move downward as a whole, so that the roller 6 abuts against the gypsum board surface. After the roller 6 abuts against the gypsum board surface, the hydraulic cylinder 5 continues to drive the pre-cutting saw 3 to rise until the pre-cutting saw 3 is raised to the target height, and the pre-cutting operation is performed. When the edge cutting operation is completed, when the hydraulic cylinder 5 drives the pre-cutting saw 3 to move downward and reset, the top rod 8 moves downward accordingly. The elastic reset force of the second spring 11 can pull the first rack 73 downward and reset. Through the transmission of the gear 75, the second rack 74 and the rotating roller 6 move upward and reset synchronously, quickly separating from the board.

[0068] The rotating roller 6 can significantly reduce the longitudinal vibration of the dry gypsum board during the edge cutting process. However, during the edge cutting process, the dry gypsum board is not only subject to severe longitudinal displacement due to the sawing vibration, but also prone to slight slippage and displacement in the horizontal direction. To address this, the following preferred embodiments are provided:

[0069] Specifically, an extension frame 12 is fixed below the workbench 1. The extension frame 12 extends horizontally toward the side away from the workbench 1. A movable frame 13 is provided at the end of the extension frame 12 away from the workbench 1. A slide rail 14 is fixed on the extension frame 12. A slider 15 is fixed at the bottom of the movable frame 13. The slider 15 is slidably connected to the slide rail 14. Several rotating rollers 16 are fixed on the surface of the movable frame 13 near the workbench 1. The roller surfaces of the several rotating rollers 16 are in contact with the end edge of the gypsum board.

[0070] Several rotating rollers 6 are inclined, with the inclination direction matching the gypsum board conveying direction. They are used to abut against the gypsum board while pushing the gypsum board to laterally adhere to the roller surface of the rotating rollers 16.

[0071] A fastening bolt 17 is rotatably connected to the slider 15. The screw end of the fastening bolt 17 passes through the slider 15 and abuts against the slide rail 14. By tightening the fastening bolt 17, the locking and fixing and loosening and sliding between the slider 15 and the slide rail 14 can be achieved.

[0072] Using this method, workers can adjust the position of the moving frame 13 by sliding the slide rail 14 and the slider 15 according to the target length after the gypsum board is cut, and adjust the distance between the rotating roller 16 and the pre-cutting saw 3. After adjustment, tightening the fastening bolt 17 can lock and fix the slider 15 and the slide rail 14, which can adapt to the processing needs of different specifications of boards. During the board conveying process, one edge is close to the rotating roller 16 to achieve rolling limit. At the same time, since the inclined rotating roller 6 will exert a certain pressure on the gypsum board when it is vertically abutting the board, it can generate a lateral component force towards the rotating roller 16, continuously pushing the gypsum board to adhere to the roller surface of the rotating roller 16 for stable conveying, limiting the horizontal and lateral offset of the board, and keeping the board in a precise processing position, which further improves the regularity and consistency of the cutting operation.

[0073] This invention also discloses a method for trimming the ends of a gypsum board dry board, comprising the following steps:

[0074] S1. Move and adjust the moving frame 13 to adjust the distance between the rotating roller 16 and the pre-cutting saw 3 so that the distance matches the target length of the gypsum board after cutting.

[0075] S2. Place the dry gypsum board to be processed on the conveying equipment and convey the board at a uniform speed. During the conveying process, the side of the dry gypsum board to be cut is set towards the workbench 1, and the other side of the board is in rolling contact with the rotating roller 16. The rotating roller 16 limits and guides the dry gypsum board to ensure that the board is conveyed smoothly and the position is accurate.

[0076] S3. When the dry gypsum board is conveyed to the processing area of ​​the workbench 1 by the conveying equipment, the hydraulic cylinder 5 starts to extend, driving the mounting plate 2 and the pre-cutting saw 3 mounted on the mounting plate 2 to lift upward as a whole; at the same time, the pre-cutting saw 3 and the crushing saw 4 are started synchronously.

[0077] S4. While the pre-cutting saw 3 is raised, the reversing drive assembly 7 drives several rotating rollers 6 to move downward, so that the rollers 6 abut against the upper surface of the dry gypsum board, thus longitudinally limiting the board and effectively preventing the board from shifting or shaking during the cutting process. At the same time, the tilted rotating rollers 6 push the gypsum board to adhere to the rollers 16 for conveying, effectively preventing the board from shifting laterally during the cutting and crushing process. After the rollers 6 limit the board, the pre-cutting saw 3, which has risen to the position, contacts the position to be cut on the dry gypsum board and cuts a regular positioning groove on the surface of the board.

[0078] S5. The gypsum board dry board with pre-cut indentation continues to move along with the conveyor equipment. The excess edge area outside the indentation of the board is cut off and crushed by the crushing saw 4 to completely remove the excess edge material of the board and finally complete the overall edge cutting operation of the gypsum board dry board.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. All such modifications or substitutions should be covered within the protection scope of this application, and should not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A gypsum board dry board end trimming system, characterized in that, have: A workbench (1) on which a mounting plate (2) is rotatably connected; A pre-cutting saw (3) is fixedly installed on the mounting plate (2) for pre-cutting grooves on the end edges of the gypsum board; The crushing saw (4) is fixedly installed on the workbench (1) and located downstream of the material conveying direction of the pre-cutting saw (3), and is used to crush and cut the edge of the pre-cut gypsum board. A hydraulic cylinder (5) is disposed below the mounting plate (2), and the output end of the hydraulic cylinder (5) is rotatably and slidably connected to the end of the mounting plate (2) away from its rotating end; Several rotating rollers (6) are located on one side of the pre-cutting saw (3) and suspended in the area above the pre-cutting saw (3); The reversing drive assembly (7) connects the rotating roller (6) and the mounting plate (2) and is used to simultaneously drive several of the rotating rollers (6) to move downward and abut against the upper surface of the gypsum board when the hydraulic cylinder (5) drives the mounting plate (2) and the pre-cutting saw (3) to lift upward.

2. The gypsum board dry board end trimming system according to claim 1, characterized in that, The reversing drive component (7) includes: The bracket (71) is fixedly connected to the workbench (1); The box body (72) is fixedly connected to the bracket (71); The first toothed rack (73) is disposed inside the box body (72) on the side away from the rotating roller (6); The second rack (74) is disposed inside the box body (72) on one side near the rotating roller (6); A back plate (710) is provided on each side of the first rack (73) and the second rack (74) away from the teeth. The back plate (710) is vertically slidably connected to the side wall of the box body (72) so as to drive the first rack (73) and the second rack (74) to move vertically within the box body (72). Gear (75) is rotatably connected to the housing (72) and located between the first rack (73) and the second rack (74). Gear (75) is meshed with both the first rack (73) and the second rack (74) for transmission. A connecting plate (76) is fixedly connected to the back plate (710) of the second rack (74) on the side away from the teeth, and is located above the rotating roller (6). A mounting frame (77) is sleeved on the outer periphery of several rotating rollers (6), and the lower ends of several rotating rollers (6) pass through the mounting frame (77) and are exposed. Each rotating roller (6) is rotatably connected to the mounting frame (77). A first spring (78) is fixedly connected at both ends to the connecting plate (76) and the mounting frame (77) respectively. A limit rod (79) is fixed at the top of the mounting frame (77). The upper end of the limit rod (79) passes through the connecting plate (76) and is vertically slidably connected to the connecting plate (76).

3. The gypsum board dry board end trimming system according to claim 2, characterized in that, A push rod (8) is fixedly connected to the mounting plate (2), and a baffle (9) is fixedly connected to the back plate (710) that connects to the first rack (73). A clearance groove (10) is opened through the bottom wall of the box (72). The upper end of the push rod (8) passes through the clearance groove (10) and is slidably connected to the clearance groove (10). The top of the push rod (8) abuts against the bottom surface of the baffle (9) to push the first rack (73) to move vertically.

4. The gypsum board dry board end trimming system according to claim 3, characterized in that, A second spring (11) is fixedly connected between the back plate (710) that connects the first rack (73) and the inner bottom wall of the box body (72).

5. The gypsum board dry board end trimming system according to claim 1, characterized in that, An extension frame (12) is fixed below the workbench (1). The extension frame (12) extends horizontally toward the side away from the workbench (1). A movable frame (13) is provided at the end of the extension frame (12) away from the workbench (1). A slide rail (14) is fixed on the extension frame (12). A slider (15) is fixed at the bottom of the movable frame (13). The slider (15) is slidably connected to the slide rail (14). Several rotating rollers (16) are fixed on the surface of the movable frame (13) near the workbench (1). The roller surfaces of the several rotating rollers (16) are in contact with the end edge of the gypsum board.

6. The gypsum board dry board end trimming system according to claim 5, characterized in that, Several of the rollers (6) are inclined, and the inclination direction is adapted to the gypsum board conveying direction. They are used to abut against the gypsum board and push the gypsum board to laterally adhere to the roller surface of the rollers (16).

7. The gypsum board dry board end trimming system according to claim 5, characterized in that, A fastening bolt (17) is rotatably connected to the slider (15). The screw end of the fastening bolt (17) passes through the slider (15) and abuts against the slide rail (14). By screwing the fastening bolt (17), the locking and fixing and loosening and sliding between the slider (15) and the slide rail (14) can be realized.

8. A method for trimming the ends of dry gypsum board, comprising using the gypsum board end trimming system as described in any one of claims 1-7 to perform the trimming operation, characterized in that, Includes the following steps: S1. Move and adjust the moving frame (13) to adjust the distance between the rotating roller (16) and the pre-cutting saw (3) so that the distance matches the target length of the gypsum board after cutting. S2. Place the dry gypsum board to be processed on the conveying equipment and convey the board at a uniform speed through the conveying equipment. During the conveying process, set the side of the dry gypsum board to be cut towards the workbench (1), and the other side of the board surface rolls in contact with the roller (16). The roller (16) limits and guides the dry gypsum board to ensure that the board is conveyed smoothly and the position is accurate. S3. When the dry gypsum board is conveyed to the processing area of ​​the workbench (1) by the conveying equipment, the hydraulic cylinder (5) starts to extend, driving the mounting plate (2) and the pre-cutting saw (3) mounted on the mounting plate (2) to lift upward as a whole; at the same time, the pre-cutting saw (3) and the crushing saw (4) are started synchronously. S4. While the pre-cutting saw (3) is raised, the reversing drive assembly (7) drives several of the rotating rollers (6) to move downward, so that the several rotating rollers (6) abut against the upper surface of the dry gypsum board, thereby limiting the board longitudinally and effectively preventing the board from shifting or shaking during the cutting process. At the same time, the tilted rotating rollers (6) push the gypsum board to adhere to the rotating rollers (16) for conveying, effectively preventing the board from shifting laterally during the cutting and crushing process. After the rotating rollers (6) limit the board, the pre-cutting saw (3) that has risen to the position contacts the position to be cut on the dry gypsum board and cuts a regular positioning groove on the surface of the board. S5. The gypsum board dry board with pre-cut indentation continues to move along with the conveying equipment. The excess edge area outside the indentation of the board is cut off and crushed by the crushing saw (4) to completely remove the excess edge material of the board and finally complete the overall edge cutting operation of the gypsum board dry board.

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