Automatic deviation correcting device for gypsum board facing paper

Abstract

The application discloses a kind of automatic deviation rectification device of gypsum board facing paper, with adjustable forming plate, deviation rectification roller way line, elastic support, deviation rectification roller way line has first limit roller and second limit roller, limit belt, first limit roller and second limit roller can be translated in the width direction of gypsum board transport line, to drive limit belt and facing paper abut, elastic support outer end forms support camber, the distance between the position of first limit roller and second limit roller at the end in the width direction of gypsum board transport line is consistent with the width of facing paper.In the application, the offset facing paper is automatically reset to the position coinciding with the gypsum board during transportation, and the movement of the facing paper is gradually driven during transportation, so that the deviation rectification process is slow, avoiding direct and rapid deviation rectification that causes wrinkles on the side of the facing paper, and avoiding wrinkles on the facing paper caused by the opposite movement of the limit belt and the facing paper through the elastic support, reducing the situation of wrinkles on the facing paper caused by direct pushing.

Description

Technical Field

[0001] This invention relates to the field of gypsum board production technology, specifically to an automatic correction device for gypsum board facing paper. Background Technology

[0002] With the progress of the times and the development of society, the requirements for gypsum board have increased from practicality to aesthetics. At the same time, in order to meet the needs of construction convenience and market competition, the vertical edges of gypsum board must be neat and the angle must be 90 degrees. However, during the production process, the joints of the facing paper are prone to deviation, which can lead to the collapse of the vertical edges and cause the quality of the gypsum board to fail to meet the requirements of industry standards. Manual adjustment at the work site is quite troublesome, and the accuracy cannot be guaranteed.

[0003] To address this, existing technologies typically involve installing adjustable forming plates on both sides of the gypsum board production line. When the gypsum board facing paper joint deviates, the facing paper is pushed inward to correct the deviation and prevent the gypsum board edge from collapsing. However, this correction method is usually only suitable for cases with small deviations in the facing paper. For cases with larger deviations, directly pushing the facing paper may cause folds and wrinkles at the edges of the facing paper, resulting in poor bonding between the facing paper and the forming plate.

[0004] Therefore, the existing technology has the following technical problems: when the offset of the face paper joint is large, directly pushing the face paper to correct the offset can easily cause wrinkles on the side of the face paper. Summary of the Invention

[0005] To address this issue, the present invention provides an automatic correction device for gypsum board facing paper, which effectively solves the problem in the prior art where the method of directly pushing the facing paper to correct its deviation when the joint of the facing paper is significantly misaligned can easily cause wrinkles on the side of the facing paper.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: an automatic correction device for gypsum board facing paper, comprising:

[0007] An adjustable forming board is provided on both sides of the gypsum board transport line. The adjustable forming board can move along the width direction of the gypsum board transport line so that the adjustable forming board comes into contact with the facing paper.

[0008] A correction roller conveyor is provided on both sides of the gypsum board transport line and upstream of the adjustable forming board. The correction roller conveyor includes a first limiting roller and a second limiting roller. At least two first limiting rollers and second limiting rollers are provided. The first limiting rollers and second limiting rollers are respectively provided on opposite sides of the gypsum board transport line. Both the first limiting rollers and the second limiting rollers are provided with limiting strips. Both the first limiting rollers and the second limiting rollers can be translated in the width direction of the gypsum board transport line to drive the limiting strips to abut against the facing paper.

[0009] An elastic support member is disposed on the outer periphery of the first limiting roller and the second limiting roller. The limiting band is installed on the elastic support member. The inner end of the elastic support member is installed inside the first limiting roller and the second limiting roller. The outer end of the elastic support member forms a supporting arc surface. The supporting arc surface is retractably disposed outside the first limiting roller and the second limiting roller.

[0010] The end of the limiting band is connected to the adjustable forming plate. The positions of the first limiting roller and the second limiting roller gradually approach the facing paper along the transport direction of the gypsum board transport line. The distance between the positions of the first limiting roller and the second limiting roller at the end in the width direction of the gypsum board transport line is consistent with the width of the facing paper.

[0011] Furthermore, the first limiting roller and the second limiting roller located at the beginning are positioned one after the other on the gypsum board transport line.

[0012] Furthermore, the distance between the side of the first limiting roller located at the beginning and the center of the gypsum board transport line is smaller than the distance between the outermost part of the side of the facing paper and the center of the gypsum board transport line.

[0013] The distance between the side of the second limiting roller located at the first end near the center of the gypsum board transport line and the center of the gypsum board transport line is not less than the distance between the outermost position of the other side of the facing paper and the center of the gypsum board transport line.

[0014] Furthermore, the correction roller conveyor includes a mounting frame disposed on the side of the gypsum board transport line, a plurality of partitions disposed in the mounting frame, a sliding seat slidably disposed in the partitions, and a connecting shaft disposed on the sliding seat;

[0015] The first limiting roller and the second limiting roller are mounted on the connecting shaft.

[0016] Furthermore, a drive motor is provided on the mounting frame, and a connecting worm is connected to the output end of the drive motor. The connecting worm passes through the mounting frame, and a rotating screw is rotatably provided in the slot. A worm wheel is provided at the end of the rotating screw, and the worm wheel meshes with the connecting worm.

[0017] The bottom of the sliding seat is provided with a threaded groove, and the rotating worm is movably connected to the threaded groove.

[0018] Furthermore, the pitch of the rotating screw gradually decreases along the transport direction of the gypsum board transport line.

[0019] Furthermore, the adjustable forming plate includes a translational push plate, a connecting groove disposed in the side of the translational push plate, a connecting shaft rotatably disposed in the opening of the connecting groove, and a rotating abutment rotatably disposed on the connecting shaft;

[0020] The rotating abutment plate abuts against the limiting band.

[0021] Furthermore, the translational push plate has a first connecting part and a second connecting part, the second connecting part is parallel to the transport direction of the gypsum board transport line, and the first connecting part has an angle with the side of the gypsum board transport line;

[0022] The connecting groove is disposed within the first connecting portion, and the end of the connecting groove extends to the connection between the first connecting portion and the second connecting portion.

[0023] Furthermore, a connecting screw is provided at the bottom of the first connecting part and the second connecting part, and a threaded groove is provided in the first connecting part, and the connecting screw is helically installed in the threaded groove;

[0024] A connecting motor is connected to the connecting screw.

[0025] Furthermore, the elastic support includes a mounting groove disposed on the first limiting roller and the second limiting roller, a sliding block disposed in the mounting groove, and a support plate connected to the end of the sliding block;

[0026] The outer wall of the sliding block is provided with a ball groove, and a rolling steel ball is provided in the ball groove. The outer wall of the rolling steel ball abuts against the inner wall of the mounting groove. The bottom of the sliding block is connected to the bottom of the mounting groove by a connecting spring.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] This invention provides a correction roller conveyor on the side of the gypsum board transport line. The correction roller conveyor has a first limiting roller and a second limiting roller, which are respectively set on opposite sides of the gypsum board transport line. The positions of the first limiting roller and the second limiting roller gradually approach the facing paper along the transport direction of the gypsum board transport line, and the limiting band on them also gradually approaches the facing paper. This allows the offset facing paper to automatically reset to the position overlapping with the gypsum board during transport. The offset of the facing paper is gradually driven during transport, which prolongs the correction time and makes the correction process proceed slowly, avoiding wrinkles on the side of the facing paper caused by direct and rapid push correction.

[0029] In addition, elastic support members are provided on the outer periphery of the first and second limiting rollers. If the face paper does not move inward in time under the limiting action of the limiting belt, the elastic support members will shrink inward, causing the limiting belt to shrink inward, thus avoiding wrinkles in the face paper caused by the opposing movement of the limiting belt and the face paper. After shrinking inward to a certain extent, the outward pushing force of the limiting belt gradually increases, pushing the face paper to a position close to the center of the gypsum board, reducing the situation where wrinkles in the face paper are caused by direct pushing. 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 an automatic correction device for gypsum board facing paper provided in an embodiment of the present invention;

[0032] Figure 2 This is a side view of the mounting bracket in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the adjustable forming plate in an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the elastic support member in an embodiment of the present invention.

[0035] The labels in the diagram represent the following:

[0036] 1-Gypsum board transport line; 2-Correction roller conveyor line; 3-Elastic support components; 4-Adjustable forming board; 5-Facing paper;

[0037] 21-First limiting roller; 22-Second limiting roller; 23-Limiting belt; 24-Mounting frame; 25-Groove; 26-Sliding seat; 27-Connecting shaft; 28-Drive motor; 29-Connecting worm; 210-Rotating screw; 211-Worm wheel; 212-Threaded groove;

[0038] 31-Supporting arc surface; 32-Sliding block; 33-Supporting plate; 34-Mounting groove; 35-Ball groove; 36-Rolling steel ball; 37-Connecting spring;

[0039] 41-Transfer push plate; 42-Connecting groove; 43-Connecting shaft; 44-Rotating stop plate; 45-Connecting lead screw; 46-Connecting motor;

[0040] 411 - First connecting part; 412 - Second connecting part. Detailed Implementation

[0041] 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.

[0042] like Figure 1 As shown, the present invention provides an automatic correction device for gypsum board facing paper, which includes an adjustable forming plate 4, a correction roller line 2, and an elastic support member 3.

[0043] Adjustable molding plates 4 are set on both sides of the gypsum board transport line 1. The adjustable molding plates 4 can move along the width direction of the gypsum board transport line 1 so that the adjustable molding plates 4 come into contact with the facing paper 5.

[0044] The correction roller conveyor 2 is set on both sides of the gypsum board transport line 1 and upstream of the adjustable forming plate 4. The correction roller conveyor 2 has a first limiting roller 21 and a second limiting roller 22. At least two first limiting rollers 21 and 22 are provided. The first limiting rollers 21 and 22 are respectively set on opposite sides of the gypsum board transport line 1. Both the first limiting rollers 21 and 22 are provided with limiting bands 23. Both the first limiting rollers 21 and 22 can be translated in the width direction of the gypsum board transport line 1 to drive the limiting bands 23 to abut against the facing paper 5.

[0045] The elastic support 3 is disposed on the outer periphery of the first limiting roller 21 and the second limiting roller 22. The limiting band 23 is installed on the elastic support 3. The inner end of the elastic support 3 is installed inside the first limiting roller 21 and the second limiting roller 22. The outer end of the elastic support 3 forms a supporting arc surface 31. The supporting arc surface 31 is retractably disposed outside the first limiting roller 21 and the second limiting roller 22.

[0046] The end of the limiting belt 23 is connected to the adjustable forming plate 4. The positions of the first limiting roller 21 and the second limiting roller 22 gradually approach the facing paper 5 along the transport direction of the gypsum board transport line 1. The distance between the positions of the first limiting roller 21 and the second limiting roller 22 at the end in the width direction of the gypsum board transport line 1 is consistent with the width of the facing paper 5.

[0047] In this embodiment of the invention, a correction roller conveyor 2 is provided on the side of the gypsum board transport line 1. The correction roller conveyor 2 has a first limiting roller 21 and a second limiting roller 22, which are respectively provided on opposite sides of the gypsum board transport line 1. The positions of the first limiting roller 21 and the second limiting roller 22 gradually approach the facing paper 5 along the transport direction of the gypsum board transport line 1, and the limiting band 23 on them also gradually approaches the facing paper 5, so that the offset facing paper 5 automatically resets to the position overlapping with the gypsum board during the transport process. During the transport process, the offset of the facing paper 5 is gradually driven, the correction time is lengthened, and the correction process is carried out slowly, avoiding the wrinkles on the side of the facing paper 5 caused by direct and rapid push correction.

[0048] In addition, elastic support members 3 are provided on the outer periphery of the first limiting roller 21 and the second limiting roller 22. If the face paper 5 does not move inward in time under the limiting action of the limiting band 23, the elastic support member 3 will shrink inward, causing the limiting band 23 to shrink inward, thus avoiding wrinkles in the face paper 5 caused by the opposing movement of the limiting band 23 and the face paper 5. After shrinking inward to a certain extent, the outward pushing force of the limiting band 23 gradually increases, pushing the face paper 23 to a position close to the center of the gypsum board, reducing the situation where the face paper 5 is wrinkled due to direct pushing.

[0049] To prevent the first limiting roller 21 from failing to correct the facing paper in time, the present invention also includes the following design: the first limiting roller 21 and the second limiting roller 22 located at the beginning are positioned one after the other on the gypsum board transport line 1. The limiting band 23 on the first limiting roller 21 first corrects the deviation of the facing paper 5. Then the facing paper 5 is transported to the side of the second limiting roller 22, where the second limiting roller 22 corrects the deviation of the facing paper 5 that has not been corrected in time.

[0050] In practical applications, the positions of the first limiting roller 21 at the end and the second limiting roller 22 at the beginning are not limited. That is, the first limiting roller 21 at the end can be set upstream, downstream, or flush with the second limiting roller 22 at the beginning. When the length of the offset area of ​​the face paper 5 is long enough, the correction work of the first limiting roller 21 and the second limiting roller 22 can be carried out simultaneously. The correction position on the face paper 5 can be the same (relative position of the two sides) or different on both sides of the face paper 5, so that the correction can be carried out simultaneously or in a certain order. Correction with a certain order can correct the area that was not corrected in time in the previous step. Simultaneous correction can ensure the correction effect. In practical applications, at least two sets of first limiting rollers 21 and second limiting rollers 22 can be set up one after the other on the side of the gypsum board transport line 1, so that both simultaneous correction and sequential correction can be achieved.

[0051] In order to achieve the correction of the side of the face paper 5 near the first limiting roller 21, the present invention makes the following design: the distance between the side of the first limiting roller 21 at the beginning and the center of the gypsum board transport line 1 is smaller than the distance between the outermost side of the face paper 5 and the center of the gypsum board transport line 1.

[0052] The above design allows the side of the face paper 5 near the first limiting roller 21, away from the edge, to fall onto the limiting belt 23, and then gradually move inward under the limiting action of the limiting belt 23.

[0053] In addition, the distance between the side of the second limiting roller 22 at the first end, which is close to the center of the gypsum board transport line 1, and the center of the gypsum board transport line 1 is not less than the distance between the outermost position of the other side of the facing paper 5 and the center of the gypsum board transport line 1.

[0054] The above design allows the side of the face paper 5 near the second limiting roller 22 to fall onto the limiting band 23 on the second limiting roller 22, and also to prevent the second limiting roller 22 at the first end from blocking the forward movement of the face paper 5.

[0055] The corrective roller conveyor 2 of the present invention adopts the following preferred embodiments, such as... Figure 2 As shown, the correction roller conveyor 2 includes a mounting frame 24 disposed on the side of the gypsum board transport line 1, several partitions 25 disposed in the mounting frame 24, a sliding seat 26 slidably disposed in the partitions 25, and a connecting shaft 27 disposed on the sliding seat 26; the first limiting roller 21 and the second limiting roller 22 are mounted on the connecting shaft 27.

[0056] The sliding seat 26 is slidably disposed in the partition groove 25, which drives the connecting shaft 27 to move horizontally, thereby driving the first limiting roller 21 and the second limiting roller 22 to adjust their positions in the width direction of the gypsum board transport line 1.

[0057] To drive the sliding seat 26 to move, the present invention is designed as follows: a drive motor 28 is provided on the mounting frame 24, and a connecting worm 29 is connected to the output end of the drive motor 28. The connecting worm 29 passes through the mounting frame 24. A rotating screw 210 is rotatably provided in the slot 25. A worm wheel 211 is provided at the end of the rotating screw 210. The worm wheel 211 meshes with the connecting worm 29. A threaded groove 212 is provided in the bottom of the sliding seat 26. The rotating worm 29 is movably connected to the threaded groove 212.

[0058] The drive motor 28 drives the connecting worm 29 to rotate, the connecting worm 29 drives the worm wheel 211 to rotate, the worm wheel 211 drives the rotating screw 210 to rotate, and under the rotation of the rotating screw 210, the sliding seat 26 moves within the partition groove 25.

[0059] In order to adjust the displacement of the first limiting roller 21 along the transport direction differently, the present invention is designed such that the pitch of the rotating screw 210 along the transport direction of the gypsum board transport line 1 gradually decreases.

[0060] The worm gear 29 rotates, causing each worm wheel 211 to rotate the same number of times. When the rotating screw 210 rotates the same number of times, the larger the screw pitch, the greater the displacement of the corresponding sliding seat 26. Therefore, when adjusting the position, the first limiting roller 21 at the beginning (and the second limiting roller 22 at the same time) has a greater displacement than the first limiting roller 21 at the end. The first limiting roller 21 at the end moves inward to abut against the side of the face paper 5, and the first limiting roller 21 at the beginning also moves inward by a large distance. During this process, the difference between the distance between the first limiting roller 21 at the beginning and the face paper and the distance between the first limiting roller 21 at the end and the face paper gradually decreases, so that the limiting band 23 gradually tends to be parallel to the transport direction. This is suitable for situations where the face paper 5 is narrow and the offset is small.

[0061] In the above embodiments, it is necessary to satisfy that the distance between the first limiting roller 21 and the second limiting roller 22 at the end is exactly the width of the face paper 5, and it is also necessary to satisfy the position limitation of the first limiting roller 21 and the second limiting roller 22 at the beginning. In actual application, the offset will vary depending on the actual situation. Correspondingly, the first limiting roller 21 and the second limiting roller 22 at the beginning need to be adjusted accordingly. Since the width of the face paper 5 is usually fixed, the first limiting roller 21 and the second limiting roller 22 at the beginning and the end can be set as a non-linkage structure. That is, the corresponding drive motor 28 and the connecting worm gear 29 can be set as two, which can adjust the position of the first limiting roller 21 and the second limiting roller 22 at the beginning and the end respectively. The first limiting roller 21 and the second limiting roller 22 in the middle can form a linkage structure with any one of the first limiting roller 21 and the second limiting roller 22 at the beginning or the end.

[0062] The present invention also includes an adjustable forming plate 4 for final correction of the face paper 5. The adjustable forming plate 4 adopts the following preferred embodiments, such as... Figure 3 As shown, the adjustable forming plate 4 includes a translation push plate 41, a connecting groove 42 disposed on the side of the translation push plate 41, a connecting shaft 43 rotatably disposed at the opening of the connecting groove 42, and a rotating abutment 44 rotatably disposed on the connecting shaft 43. The rotating abutment 44 abuts against the limiting band 23.

[0063] The translation push plate 41 has a first connecting part 411 and a second connecting part 412. The second connecting part 412 is parallel to the transport direction of the gypsum board transport line 1. The first connecting part 411 has an angle with the side of the gypsum board transport line 1. The connecting groove 42 is disposed in the first connecting part 411, and the end of the connecting groove 42 extends to the connection between the first connecting part 411 and the second connecting part 412.

[0064] A torsion spring is usually installed at the connecting shaft 43. Under the action of the torsion spring, the rotating abutment plate 44 is usually aligned with the transport direction of the gypsum board transport line 1 and limits the position of the facing paper 5. If the facing paper 5 has not been corrected after passing the correction roller line 2, the rotating base plate 44 may be rotated outward by a certain angle on the side of the rotating abutment plate 44. However, under the action of the torsion spring, the outward thrust of the rotating base plate 44 can be increased during the rotation, thereby driving the facing paper 5 to reset. The inclined design of the first connecting part 411 makes it impossible for the facing paper 5 to drive the rotating base plate 44 to rotate continuously. If the facing paper 5 is not reset after rotating to a certain extent, it will abut against the first connecting part 411 and then gradually move to the second connecting part 412. The second connecting part 412 can also perform the final correction of the facing paper.

[0065] In order to adjust the position of the second connecting part 412 and the first connecting part 411 according to the width of the face paper 5, the present invention also makes the following design: the bottom of the first connecting part 411 and the second connecting part 412 are provided with connecting screws 45, the first connecting part 411 is provided with a threaded groove, the connecting screw 45 is screwed in the threaded groove, and a connecting motor 46 is connected to the connecting screw 45.

[0066] The connecting motor 46 drives the connecting screw 45 to rotate, and the rotation of the connecting screw 45 causes the first connecting part 411 and the second connecting part 412 to adjust their positions along the width direction of the gypsum board transport line 1.

[0067] To avoid wrinkles in the faceplate 5 caused by forceful pushing, the present invention also incorporates the following design features, such as... Figure 4As shown, the elastic support 3 includes an installation groove 34 provided in the first limiting roller 21 and the second limiting roller 22, a sliding block 32 provided in the installation groove 34, and a support plate 33 connected to the end of the sliding block 32; the outer wall of the sliding block 32 is provided with a ball groove 35, and a rolling steel ball 36 is provided in the ball groove 35. The outer wall of the rolling steel ball 36 abuts against the inner wall of the installation groove 34, and the bottom of the sliding block 32 is connected to the bottom of the installation groove 34 by a connecting spring 37.

[0068] In the above embodiment, when the face paper 5 falls on the limiting band 23, the offset face paper 5 presses inward against the limiting band 23, causing the support plate 33 to press inward, the sliding block 32 to move inward within the mounting groove 34, and the connecting spring 37 to be squeezed. The function of the rolling steel ball 36 is to make the sliding block 32 move inward by rolling within the mounting groove 34, resulting in low friction and reducing the difficulty of the face paper 5 pushing the support plate 33 inward. Under the action of the connecting spring 37, the face paper 5 can have a period of displacement buffer. If the face paper 5 cannot correct its deviation during the buffering process, and the support plate 33 can no longer move inward, the face paper 5 can only move inward under the limiting action of the limiting band 23 to achieve deviation correction.

[0069] In summary, the main implementation process of this invention is as follows:

[0070] In actual operation, the width and offset of the protective paper 5 are detected by sensors;

[0071] The drive motor 28 is driven according to the width and offset of the face paper 5. The drive motor 28 drives the connecting worm 29 to rotate, the connecting worm 29 drives the worm wheel 211 to rotate, and the worm wheel 211 drives the rotating screw 210 to rotate. Under the rotation of the rotating screw 210, the sliding seat 26 moves in the groove 25, which drives the connecting shaft 27 to move, thereby driving the first limiting roller 21 and the second limiting roller 22 to adjust their positions in the width direction of the gypsum board transport line 1.

[0072] At this time, the side of the protective paper 5 near the first limiting roller 21, away from the edge, can fall on the limiting belt 23. The offset protective paper 5 presses inward against the limiting belt 23, causing the support plate 33 to press inward. The sliding block 32 moves inward in the mounting groove 34, and the connecting spring 37 is squeezed. Under the action of the connecting spring 37, the outward pushing force on the protective paper 5 gradually increases, pushing the protective paper 5 inward to achieve correction. If the protective paper 5 does not move inward under the connecting spring 37 and the support plate 33 can no longer move inward, the protective paper 5 can move inward under the limiting action of the limiting belt 23 to achieve correction.

[0073] The correction process of the second limiting roller 22 is the same as above. The side of the face paper 5 near the second limiting roller 22 can fall on the limiting band 23 on the second limiting roller 22, and correction is achieved under the action of the above structure.

[0074] If the protective paper 5 is not corrected after passing through the correction roller line 2, it may cause the rotating base plate 44 to rotate outward by a certain angle on the side of the rotating abutment plate 44. However, under the action of the torsion spring, the outward pushing force of the rotating base plate 44 can be increased during the rotation, thereby causing the protective paper 5 to return to its original position.

[0075] Assuming the protective paper 5 does not return to its original position under the action of the torsion spring, if the rotating abutment 44 rotates to a certain extent and the protective paper 5 still does not return to its original position, it will abut against the first connecting part 411, and then gradually move to the second connecting part 412, where the second connecting part 412 will perform the final correction on the protective paper.

[0076] 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. An automatic correction device for gypsum board facing paper, characterized in that, have: Adjustable molding board (4) is set on both sides of the gypsum board transport line (1). The adjustable molding board (4) can move along the width direction of the gypsum board transport line (1) so that the adjustable molding board (4) contacts the protective paper (5). The correction roller conveyor (2) is set on both sides of the gypsum board transport line (1) and at the upstream end of the adjustable forming plate (4). The correction roller conveyor (2) has a first limiting roller (21) and a second limiting roller (22). The first limiting roller (21) and the second limiting roller (22) are set to at least two. The first limiting roller (21) and the second limiting roller (22) are respectively set on opposite sides of the gypsum board transport line (1). The first limiting roller (21) and the second limiting roller (22) are both provided with limiting bands (23). The first limiting roller (21) and the second limiting roller (22) can both translate in the width direction of the gypsum board transport line (1) to drive the limiting band (23) to abut against the protective paper (5). An elastic support member (3) is disposed on the outer periphery of the first limiting roller (21) and the second limiting roller (22). The limiting band (23) is installed on the elastic support member (3). The inner end of the elastic support member (3) is installed inside the first limiting roller (21) and the second limiting roller (22). The outer end of the elastic support member (3) forms a supporting arc surface (31). The supporting arc surface (31) is retractably disposed outside the first limiting roller (21) and the second limiting roller (22). The end of the limiting band (23) is connected to the adjustable forming plate (4). The positions of the first limiting roller (21) and the second limiting roller (22) gradually approach the face paper (5) along the transport direction of the gypsum board transport line (1). The distance between the positions of the first limiting roller (21) and the second limiting roller (22) at the end in the width direction of the gypsum board transport line (1) is consistent with the width of the face paper (5). The adjustable forming plate (4) includes a translation push plate (41), a connecting groove (42) provided in the side of the translation push plate (41), a second connecting shaft (43) rotatably provided in the opening of the connecting groove (42), and a rotating abutment (44) rotatably provided on the second connecting shaft (43). The rotating abutment (44) abuts against the limiting band (23), and a torsion spring is provided at the second connecting shaft (43).

2. The automatic correction device for gypsum board facing paper according to claim 1, characterized in that, The first limiting roller (21) and the second limiting roller (22) located at the beginning are positioned one after the other on the gypsum board transport line (1).

3. The automatic correction device for gypsum board facing paper according to claim 2, characterized in that, The distance between the side of the first limiting roller (21) located at the first end and the center of the gypsum board transport line (1) is smaller than the distance between the outermost side of the protective paper (5) and the center of the gypsum board transport line (1). The distance between the side of the second limiting roller (22) located at the first end and the center of the gypsum board transport line (1) is not less than the distance between the outermost position of the other side of the protective paper (5) and the center of the gypsum board transport line (1).

4. The automatic correction device for gypsum board facing paper according to claim 3, characterized in that, The correction roller conveyor (2) includes a mounting frame (24) set on the side of the gypsum board transport line (1), a plurality of partitions (25) set in the mounting frame (24), a sliding seat (26) slidably set in the partitions (25), and a first connecting shaft (27) set on the sliding seat (26). The first limiting roller (21) and the second limiting roller (22) are mounted on the first connecting shaft (27).

5. The automatic correction device for gypsum board facing paper according to claim 4, characterized in that, A drive motor (28) is provided on the mounting bracket (24). The output end of the drive motor (28) is connected to a connecting worm (29). The connecting worm (29) passes through the mounting bracket (24). A rotating screw (210) is rotatably provided in the partition groove (25). A worm wheel (211) is provided at the end of the rotating screw (210). The worm wheel (211) meshes with the connecting worm (29). The sliding seat (26) has a threaded groove (212) at its bottom, and the rotating screw (210) is movably connected to the threaded groove (212).

6. The automatic correction device for gypsum board facing paper according to claim 5, characterized in that, The pitch of the rotating screw (210) decreases gradually along the transport direction of the gypsum board transport line (1).

7. The automatic correction device for gypsum board facing paper according to claim 6, characterized in that, The translation push plate (41) has a first connecting part (411) and a second connecting part (412). The second connecting part (412) is parallel to the transport direction of the gypsum board transport line (1), and the first connecting part (411) has an angle with the side of the gypsum board transport line (1). The connecting groove (42) is disposed in the first connecting part (411), and the end of the connecting groove (42) extends to the connection between the first connecting part (411) and the second connecting part (412).

8. The automatic correction device for gypsum board facing paper according to claim 7, characterized in that, The bottom of the first connecting part (411) and the second connecting part (412) are provided with connecting screws (45), the first connecting part (411) is provided with a threaded groove, and the connecting screws (45) are spirally installed in the threaded groove; A connecting motor (46) is connected to the connecting screw (45).

9. The automatic correction device for gypsum board facing paper according to claim 8, characterized in that, The elastic support (3) includes a mounting groove (34) provided in the first limiting roller (21) and the second limiting roller (22), a sliding block (32) provided in the mounting groove (34), and a support plate (33) connected to the end of the sliding block (32). The outer wall of the sliding block (32) is provided with a ball groove (35), and a rolling steel ball (36) is provided in the ball groove (35). The outer wall of the rolling steel ball (36) abuts against the inner wall of the mounting groove (34). The bottom of the sliding block (32) is connected to the bottom of the mounting groove (34) by a connecting spring (37).

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