Limiting and fixing device and method for preventing carbon film plate from warping

Abstract

The invention discloses a limiting and fixing device and method for preventing a carbon film plate from warping, and belongs to the technical field of circuit board processing devices and methods, and the device comprises a conveying line which is disposed on a frame, extends in a preset direction, and is used for bearing and conveying the carbon film plate; the limiting and guiding mechanism comprises a cross beam fixed to the frame, one side of the extending end of the cross beam is connected with a first air cylinder, a piston rod on the first air cylinder is connected to an X-axis sliding block, and the X-axis sliding block is connected with Y-axis sliding blocks at the two ends of the cross beam through first swing rods; the X-axis sliding block and the Y-axis sliding block are correspondingly connected with a transverse sliding groove and a vertical sliding groove close to the cross beam. The technical problems that a cleaning mechanism is single in cleaning direction process and poor in cleanliness, during marking work, when the marking position is not in the center position, due to unbalanced stress, the phenomenon of warping or shaking is likely to happen, and the marking processing quality is greatly affected can be solved.

Description

Technical Field

[0001] The invention belongs to the technical field of circuit board processing devices and methods, and in particular relates to a limiting and fixing device and method for preventing a carbon film plate from warping. Background Art

[0002] Carbon film board is a printed circuit board composed of a carbon film conductive pattern layer. The carbon film conductive pattern layer is formed by printing conductive ink on an insulating substrate.

[0003] The main materials of carbon film boards include conductive ink and insulating substrate. Conductive ink is used to make circuit patterns, while the insulating substrate provides support and insulation functions. During the manufacturing process, the conductive ink is printed on the insulating substrate to form the required circuit pattern. This method is relatively easy and effective to produce printed circuits of various shapes, especially for electronic products with low power, low power consumption and high input impedance. Carbon film boards are widely used in various electronic devices due to their low cost and reliable performance.

[0004] During the processing of the carbon film plate, if there are more particulate impurities attached to the surface of the carbon film plate, it will affect the quality of the subsequent marking process. In addition, the cleaning direction of the existing cleaning mechanism is relatively single and the cleanliness is poor. During the marking work, it is necessary to perform corresponding pressing and marking processing through a marking tube or a marking block. However, when the marking position is not at the center position, due to unbalanced force, it is easy to warp or shake, which greatly affects the quality of the marking process and is not conducive to improving the processing stability of the device. Summary of the invention

[0005] The purpose of the present invention is to provide a limiting and fixing device and method for preventing the carbon film plate from warping, so as to solve the technical problems that the cleaning direction of the cleaning mechanism is relatively single and the cleanliness is poor. When the marking position is not at the center position during marking, it is easy to warp or shake due to unbalanced force, which greatly affects the quality of marking processing.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A limiting fixing device for preventing a carbon film plate from warping, comprising: A conveying line, which is arranged on the frame and extends along a preset direction, and is used to carry and convey the carbon film plate; A position limiting guide mechanism, wherein the position limiting guide mechanism comprises a crossbeam fixed on the frame, the crossbeam is arranged in an H shape, and a first cylinder is connected to one side of an extended end of the crossbeam, a piston rod on the first cylinder is connected to an X-axis slider, the X-axis slider and the Y-axis sliders at both ends of the crossbeam are connected by a first swing rod, and the X-axis slider and the Y-axis slider are connected to a horizontal slide groove and a vertical slide groove correspondingly near the crossbeam; The bottom of the X-axis slider and the Y-axis slider are correspondingly connected with a first cleaning brush and a second cleaning brush. One end of the Y-axis slider is connected with a fixing plate through a bracket. The bottom of the fixing plate is movably connected with a guiding wheel. A guiding cavity for connecting a carbon film plate is formed between the guiding wheels. The bottom of the inner wall of the cross beam is provided with rollers arranged along the length directions of the horizontal chute and the vertical chute.

[0007] Further, convex parts corresponding to the horizontal chute and the vertical chute are integrally formed at both ends of the X-axis slider and the Y-axis slider. Both ends of the first swing rod are installed on the X-axis slider and the Y-axis slider by means of rotational connection. Brush hairs are installed at the bottoms of the first cleaning brush and the second cleaning brush by means of adhesive fixation. With the start of the first air cylinder, the first cleaning brush and the second cleaning brush reciprocally clean in the X-axis direction and the Y-axis direction on the horizontal plane of the carbon film plate respectively.

[0008] Further, it further includes a pressing and fixing mechanism. The pressing and fixing mechanism includes an L-shaped bending plate fixed on the frame. Second air cylinders are fixedly installed on both sides at the bottom end of the L-shaped bending plate. The piston rod at the bottom of the second air cylinder is connected to a first lifting plate. The four peripheries at the bottom end of the first lifting plate are connected to a second lifting plate through brackets.

[0009] Further, a driving motor is detachably installed at the center of the bottom end of the first lifting plate. The output shaft of the driving motor penetrates through the housing and extends to the turntable. A rotating groove connected to the housing is provided at the outer edge of the turntable. The bottom of the turntable is connected to the second lifting plate through a bearing. Both ends of the turntable are connected to a contact block through a rotating rod. A first slope surface is provided on the outer wall of the contact block. A first slider placed on the second lifting plate is arranged outside the contact block.

[0010] Further, second slope surfaces adapted to the first slope surface are provided at both ends of the outer wall of the first slider. Limiting grooves are connected along the length direction of the limiting plate at both ends of the first slider. The bottom of the limiting plate is installed on the second lifting plate by means of plug-in fixation. The first slider and the second slider are connected through a second swing rod. One end of the second slider is connected to the first lifting plate through a compression spring, and the other end penetrates through the second lifting plate and extends to the pressing plate.

[0011] Further, a movable opening connected to the second slider is provided on the second lifting plate. Both ends of the second swing rod are installed on the first slider and the second slider by means of rotational connection.

[0012] Further, the extension end at the bottom of the turntable penetrates through the second lifting plate and extends to the first upright post. A rolling ball is movably connected to the bottom of the first upright post through a panel. A second upright post is arranged at the center of the second lifting plate among the rolling balls. A marking block is fixedly installed on the second upright post. The marking block is in contact and fit with the carbon film plate by means of pressing treatment.

[0013] Further, an annular groove connected to the first upright post is arranged at the bottom of the second lifting plate. An arc surface connected to the rolling ball is arranged on the side wall of the panel. A positioning hole is formed at the connection between the marking block and the second upright post, and they are connected by means of locking and fixing with a positioning pin.

[0014] A limiting and fixing method for preventing warping of a carbon film plate includes the following steps: S1.1. Place the carbon film plate on the conveyor line. The limiting and guiding mechanism is used to simultaneously clean the carbon film plate in the horizontal X-axis direction and Y-axis direction, and the centering and clamping work is realized through the guide wheels to prevent deviation during transportation. S1.2. When the conveyor line transports the carbon film plate to the pressing and fixing mechanism, the second air cylinder is started, and the marking block is driven to perform a pressing and imprinting treatment on the carbon film plate. S1.3. During the pressing process in step S1.2, the driving motor is started to drive the turntable to rotate. Under the action of mechanical transmission, the second slider drives the pressing plate to limit and press both ends of the carbon film plate, and at the same time, the rolling balls further limit and press the outer wall edge of the carbon film plate by rotating.

[0015] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows: The limiting and guiding mechanism is provided. During the transportation of the carbon film plate, the first air cylinder on the cross beam is started. By means of pushing and cleaning, the X-axis slider and Y-axis slider on the cross beam drive the first cleaning brush and the second cleaning brush to perform their respective cleaning work in the horizontal direction. The cleaning mechanism is used to perform cleaning work in multiple directions, so as to ensure the cleanliness of the carbon film plate, effectively facilitating the improvement of the subsequent marking treatment quality. Moreover, during the movement of the Y-axis slider, it can drive the guide wheels on the two end fixing plates to move in the opposite direction. During the centering movement of the guide wheels, it can play an effective limiting and guiding role for the transported carbon film plate, thereby preventing the situation of position deviation during transportation and improving the working stability of the device.

[0016] A pressing and fixing mechanism is provided, and the second cylinder can drive the marking block to move downward and realize the imprint mark on the carbon film plate by pressing processing, and at the same time, the driving motor is started to drive the turntable to rotate. During the rotation of the turntable, the rotating rod can drive the rotation of the resistance block, and the resistance block contacts and fits with the first sliding block during the rotation. With the help of the rotating connection of the second swing rod, the second sliding block moves downward and realizes the pressing work through the pressing plate, while ensuring the flatness of the carbon film plate itself, it can effectively limit and fix it to prevent the carbon film plate from warping. During the rotation of the turntable, it can also drive the rolling ball on the first column to rotate in a circle. During the rotation of the rolling ball, it can further limit and fix the carbon film plate to which the marking block is attached, thereby ensuring the stability of the carbon film plate during the processing and effectively improving the marking processing quality. In addition, the setting of the bearing not only ensures the free rotation of the turntable, but also supports and connects the second lifting plate in the annular groove. The design is reasonable and the integrated performance is strong.

[0017] (3) The entire carbon film plate limiting and fixing method is easy to operate, with a high degree of automation, which improves work efficiency. During the process of guiding and limiting the carbon film plate, it can also be effectively cleaned, avoiding the situation where the cleaning direction is too single. During the pressing and marking process, the stability of the marking work is guaranteed by multi-point limiting and fixing, and the marking accuracy is improved. In addition, the limiting and fixing is fixed by a combination of static pressing and dynamic rolling, which effectively improves the product processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The structure diagram of a limiting fixing device for preventing the carbon film plate from warping according to the present invention is shown in FIG. Figure One ; Figure 2 The structure diagram of a limiting fixing device for preventing the carbon film plate from warping according to the present invention is shown in FIG. Figure Two ; Figure 3 It is a front view of a limiting fixing device for preventing a carbon film plate from warping according to the present invention; Figure 4 is a schematic cross-sectional view of the crossbeam of the present invention in the front view direction; Figure 5 It is a structural schematic diagram of the pressing and fixing mechanism of the present invention; Figure 6It is a schematic connection diagram of the first slider and the second slider of the present invention; Figure 7 It is the present invention Figure 2 Enlarged view of part A; Figure 8 It is a schematic connection diagram of the turntable of the present invention; Figure 9 It is a schematic flow diagram of a method for preventing warping of a carbon film plate and limiting and fixing it according to the present invention.

[0020] Reference numerals: 1, conveyor line; 2, limit guiding mechanism; 3, cross beam; 4, first cylinder; 5, X-axis slider; 6, Y-axis slider; 7, first swing rod; 8, horizontal chute; 9, vertical chute; 10, first cleaning brush; 11, second cleaning brush; 12, fixing plate; 13, guide wheel; 14, roller; 15, pressing and fixing mechanism; 16, L-shaped bending plate; 17, second cylinder; 18, first lifting plate; 19, second lifting plate; 20, driving motor; 21, housing; 22, turntable; 23, bearing; 24, rotating rod; 25, abutting block; 26, first slope; 27, first slider; 28, second slope; 29, limit plate; 30, second slider; 31, second swing rod; 32, compression spring; 33, pressing plate; 34, first column; 35, panel; 36, ball; 37, second column; 38, marking block; 39, annular groove. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Refer to the attached drawings of the specification Figure 1 and the attached Figure 2 As shown, a device for preventing warping of a carbon film plate and limiting and fixing it includes: a conveyor line 1, which is arranged on a frame and extends along a preset direction for carrying and conveying the carbon film plate; A limit guiding mechanism 2, the limit guiding mechanism 2 includes a cross beam 3 fixed on the frame, the cross beam 3 is arranged in an H shape, and a first cylinder 4 is connected to one side of the extending end of the cross beam 3. The piston rod on the first cylinder 4 is connected to an X-axis slider 5, and the X-axis slider 5 and Y-axis sliders 6 at both ends of the cross beam 3 are connected by a first swing rod 7. Horizontally corresponding to the cross beam 3, a horizontal chute 8 and a vertical chute 9 are connected to the X-axis slider 5 and the Y-axis slider 6 respectively; At the bottom of the X-axis slider 5 and the Y-axis slider 6, a first cleaning brush 10 and a second cleaning brush 11 are correspondingly connected. One end of the Y-axis slider 6 is connected to a fixed plate 12 through a bracket. At the bottom of the fixed plate 12, a guide wheel 13 is movably connected. A guide cavity for connecting the carbon film plate is formed between the guide wheels 13. At the bottom of the inner wall of the cross beam 3, a roller 14 is provided along the length directions of the horizontal chute 8 and the vertical chute 9.

[0023] A limit guiding mechanism 2 is provided. During the conveying process of the carbon film plate, the first cylinder 4 on the cross beam 3 is started. By means of pushing and cleaning, the X-axis slider 5 and the Y-axis slider 6 on the cross beam 3 drive the first cleaning brush 10 and the second cleaning brush 11 to perform their respective cleaning operations in the horizontal direction. Through the cleaning mechanism, cleaning operations in multiple directions are realized, thereby ensuring the cleanliness of the carbon film plate and effectively facilitating the improvement of the subsequent marking processing quality. Moreover, during the movement of the Y-axis slider 6, it can drive the reverse movement of the guide wheels 13 on both ends of the fixed plate 12. During the centering movement of the guide wheels 13, it can play an effective limiting and guiding role for the conveyed carbon film plate, thereby preventing the situation of position deviation during the conveying process and improving the working stability of the device.

[0024] Specifically, the driving wheels on the conveying line 1 are rotated through a driver, and then through the meshing transmission of the sprocket and chain, the driving wheels on the whole conveying line 1 can rotate synchronously, so as to perform the corresponding conveying work on the carbon film plate. For the sprocket and chain assembly, it is a conventional technical means for those skilled in the art and will not be described in detail here. There is no attached drawing shown, but it does not affect the implementation of the technical solution of the present invention.

[0025] The cross beam 3 is arranged in an H shape, which not only provides corresponding spaces for the horizontal chute 8 and the vertical chute 9, but also facilitates the synchronous movement of the Y-axis sliders 6 at both ends when the X-axis slider 5 moves. At the same time, the rollers 14 along the length directions of the horizontal chute 8 and the vertical chute 9 can reduce the friction force when the X-axis slider 5 drives the Y-axis sliders 6 at both ends to move during the movement, and make it move by means of rolling friction, reduce friction damage, and improve the service life of the device.

[0026] Reference Figure 1 、 Figure 3 and Figure 4 , at both ends of the X-axis slider 5 and the Y-axis slider 6, convex parts corresponding to the horizontal chute 8 and the vertical chute 9 are integrally formed and connected. Both ends of the first swing rod 7 are installed on the X-axis slider 5 and the Y-axis slider 6 through rotational connection. At the bottom of the first cleaning brush 10 and the second cleaning brush 11, bristles are installed through adhesive fixation. With the start of the first cylinder 4, the first cleaning brush 10 and the second cleaning brush 11 reciprocally clean in the X-axis direction and the Y-axis direction on the horizontal plane of the carbon film plate respectively.

[0027] Specifically, through the reciprocating cleaning work of the first cleaning brush 10 and the second cleaning brush 11 in the X-axis direction and the Y-axis direction, effective cleaning at multiple positions can be achieved, thereby ensuring the cleanliness of the carbon film plate. At the same time, a spring rod can be added between the fixed plates 12 connected by the brackets, which can improve the buffering and adjustment effect on the guide wheel 13, thereby preventing the guide wheel 13 from generating a large acting force when contacting the carbon film plate without corresponding buffering and protection effects.

[0028] In addition, the bristles on the first cleaning brush 10 and the second cleaning brush 11 can be made of nylon material. The nylon brush is capillary soft and not easily conductive, which can avoid electrical problems during the cleaning of the circuit board, and moreover, it will not leave residues and will not leave any substances on the carbon film plate, making it suitable for fine cleaning work. Reference Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 Furthermore, a limiting and fixing device for preventing the carbon film plate from warping further includes a pressing and fixing mechanism 15. The pressing and fixing mechanism 15 includes an L-shaped bending plate 16 fixed on the frame. Second cylinders 17 are fixedly installed on both sides of the bottom end of the L-shaped bending plate 16. The piston rods at the bottoms of the second cylinders 17 are connected to a first lifting plate 18. The four peripheries of the bottom end of the first lifting plate 18 are connected to a second lifting plate 19 through brackets.

[0029] By setting the pressing and fixing mechanism 15, the second cylinder 17 can drive the marking block 38 to move downward and mark the carbon film plate by pressing. At the same time, the driving motor 20 is started to drive the turntable 22 to rotate. During the rotation of the turntable 22, the rotating rod 24 can drive the rotation of the abutting block 25. During the rotation of the abutting block 25, it abuts and fits with the first slider 27. With the rotational connection of the second swing rod 31, the second slider 30 moves downward and presses through the pressing plate 33. While ensuring the flatness of the carbon film plate itself, it can effectively limit and fix it to prevent the carbon film plate from warping. During the rotation of the turntable 22, it can also drive the ball 36 on the first column 34 to rotate in a circle. During the rotation of the ball 36, it can further limit and fix the periphery of the carbon film plate in contact with the marking block 38, thereby ensuring the stability of the carbon film plate during processing and effectively improving the marking quality. In addition, the setting of the bearing 23 not only ensures the free rotation of the turntable 22 but also can support and connect the second lifting plate 19 in the annular groove 39. The design is reasonable and the integration performance is strong.

[0030] A driving motor 20 is detachably installed at the center of the bottom end of the first lifting plate 18. The output shaft of the driving motor 20 penetrates through the housing 21 and extends to the turntable 22. A rotating groove connected to the housing 21 is provided at the outer wall edge of the turntable 22. The bottom of the turntable 22 is connected to the second lifting plate 19 through a bearing 23. Both ends of the turntable 22 are connected to the contact block 25 through a rotating rod 24. A first slope 26 is provided on the outer wall of the contact block 25, and a first slider 27 placed on the second lifting plate 19 is provided outside the contact block 25.

[0031] Specifically, second slopes 28 adapted to the first slope 26 are provided at both ends of the outer wall of the first slider 27. Limiting grooves are connected along the length direction of the limiting plate 29 at both ends of the first slider 27. The bottom of the limiting plate 29 is installed on the second lifting plate 19 by means of plug-in fixation. The first slider 27 and the second slider 30 are connected through a second swing rod 31. One end of the second slider 30 is connected to the first lifting plate 18 through a compression spring 32, and the relative other end penetrates through the second lifting plate 19 and extends to the pressing plate 33.

[0032] The first slope 26 on the outer wall of the contact block 25 cooperates with the second slope 28 on the first slider 27, which can effectively increase the contact surface when the two come into contact and collision, thereby reducing the acting pressure. Moreover, the slope setting can improve the smoothness of the structure, thereby reducing the frictional damage between structural components. The limiting grooves on the limiting plate 29 can not only limit the moving first slider 27, but also ensure that the first slider 27 moves smoothly horizontally, preventing the phenomenon of breaking away from the moving track.

[0033] An activity port connected to the second slider 30 is provided on the second lifting plate 19. Both ends of the second swing rod 31 are installed on the first slider 27 and the second slider 30 through a rotating connection method. The extended end at the bottom of the turntable 22 penetrates through the second lifting plate 19 and extends to the first upright post 34. A rolling ball 36 is movably connected to the bottom of the first upright post 34 through a panel 35. A second upright post 37 is provided at the center of the second lifting plate 19 between the rolling balls 36. A marking block 38 is fixedly installed on the second upright post 37, and the marking block 38 is in contact and fit with the carbon film plate through pressing treatment.

[0034] In addition, an annular groove 39 connected to the first upright post 34 is provided at the bottom of the second lifting plate 19. An arc surface connected to the rolling ball 36 is provided on the side wall of the panel 35. A positioning hole is provided at the connection between the marking block 38 and the second upright post 37, and they are connected through a positioning pin locking and fixing method. Connecting through the positioning pin locking and fixing method can facilitate the installation and disassembly work of structural components, which is beneficial to personnel operation and improves work efficiency.

[0035] Reference Figure 9 , a limiting and fixing method for preventing the warping of a carbon film plate, includes the following steps: S1.1, place the carbon film plate on the conveyor line 1, and use the limit guide mechanism 2 to clean the carbon film plate in the X-axis and Y-axis directions at the same time, and use the guide wheel 13 to achieve centering and clamping to prevent deviation during transportation; S1.2, when the conveyor line 1 transports the carbon film plate to the pressing and fixing mechanism 15, the second cylinder 17 is started and drives the marking block 38 to perform pressing and marking processing on the carbon film plate; S1.3, step S1.2 During the pressing process, the drive motor 20 is started to drive the turntable 22 to rotate. Under the action of mechanical transmission, the second slider 30 drives the pressure plate 33 to limit and press the two ends of the carbon film plate. At the same time, the ball 36 further limits and presses the outer wall edge of the carbon film plate by rotating.

[0036] The entire carbon film plate limiting and fixing method is easy to operate, has a high degree of automation, and improves work efficiency. During the process of guiding and limiting the carbon film plate, it can also be effectively cleaned, avoiding the situation where the cleaning direction is too single. During the press marking process, the stability of the marking work is guaranteed by multi-point limiting and fixing, and the marking accuracy is improved. The limiting and fixing is fixed by a combination of static pressing and dynamic rolling, which effectively improves the product processing quality.

[0037] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0038] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A limiting fixing device for preventing a carbon film plate from warping, characterized in that: include: A conveyor line (1), the conveyor line (1) being arranged on a frame and extending along a preset direction, and being used for carrying and conveying a carbon film plate; A position limiting guide mechanism (2), the position limiting guide mechanism (2) comprising a crossbeam (3) fixed on a frame, the crossbeam (3) being arranged in an H-shape, and a first cylinder (4) being connected to one side of an extended end of the crossbeam (3), a piston rod on the first cylinder (4) being connected to an X-axis slider (5), the X-axis slider (5) and Y-axis sliders (6) at both ends of the crossbeam (3) being connected via a first swinging rod (7), and a horizontal slide groove (8) and a vertical slide groove (9) being correspondingly connected to the X-axis slider (5) and the Y-axis slider (6) near the crossbeam (3); The bottom of the X-axis slider (5) and the Y-axis slider (6) are connected to a first cleaning brush (10) and a second cleaning brush (11) respectively; one end of the Y-axis slider (6) is connected to a fixed plate (12) via a bracket; the bottom of the fixed plate (12) is movably connected to a guide wheel (13); a guide cavity connected to a carbon film plate is formed between the guide wheels (13); and a roller (14) is provided at the bottom of the inner wall of the crossbeam (3) in the length direction of the horizontal slide groove (8) and the vertical slide groove (9).

2. A limiting and fixing device for preventing warping of a carbon film plate according to claim 1, characterized in that: Both ends of the X-axis slider (5) and the Y-axis slider (6) are integrally formed with protrusions corresponding to the horizontal slide groove (8) and the vertical slide groove (9); both ends of the first swing rod (7) are mounted on the X-axis slider (5) and the Y-axis slider (6) by means of a rotational connection; the bottoms of the first cleaning brush (10) and the second cleaning brush (11) are both mounted with bristles by means of adhesive fixation; when the first cylinder (4) is started, the first cleaning brush (10) and the second cleaning brush (11) respectively reciprocate and clean in the X-axis direction and the Y-axis direction on the horizontal plane of the carbon film plate.

3. A limiting and fixing device for preventing warping of a carbon film plate according to claim 2, characterized in that: It also includes a pressing and fixing mechanism (15), the pressing and fixing mechanism (15) including an L-shaped bending plate (16) fixed on the frame, a second cylinder (17) fixedly mounted on both sides of the bottom end of the L-shaped bending plate (16), a piston rod at the bottom of the second cylinder (17) connected to the first lifting plate (18), and the bottom end of the first lifting plate (18) is connected to the second lifting plate (19) via brackets on all sides.

4. A limiting and fixing device for preventing warping of a carbon film plate according to claim 3, characterized in that: A driving motor (20) is detachably mounted at the center of the bottom end of the first lifting plate (18); an output shaft of the driving motor (20) passes through the housing (21) and extends to the turntable (22); a rotation groove connected to the housing (21) is provided at the edge of the outer wall of the turntable (22); the bottom of the turntable (22) is connected to the second lifting plate (19) via a bearing (23); both ends of the turntable (22) are connected to a resistance block (25) via a rotating rod (24); a first slope (26) is provided on the outer wall of the resistance block (25); and a first sliding block (27) placed on the second lifting plate (19) is provided outside the resistance block (25).

5. A limiting and fixing device for preventing warping of a carbon film plate according to claim 4, characterized in that: Both ends of the outer wall of the first sliding block (27) are provided with second slope surfaces (28) adapted to the first slope surface (26), and both ends of the first sliding block (27) are connected to limit grooves along the length direction of the limit plate (29), and the bottom of the limit plate (29) is installed on the second lifting plate (19) by plugging and fixing, and the first sliding block (27) and the second sliding block (30) are connected by a second swing rod (31), and one end of the second sliding block (30) is connected to the first lifting plate (18) by a compression spring (32), and the other end thereof penetrates the second lifting plate (19) and extends to the pressing plate (33).

6. A limiting and fixing device for preventing warping of a carbon film plate according to claim 5, characterized in that: The second lifting plate (19) is provided with a movable opening connected to the second slider (30), and both ends of the second swing rod (31) are mounted on the first slider (27) and the second slider (30) by means of a rotational connection.

7. A limiting and fixing device for preventing warping of a carbon film plate according to claim 4, characterized in that: The extended end of the bottom end of the turntable (22) passes through the second lifting plate (19) and extends to the first column (34); a rolling ball (36) is movably connected to the bottom of the first column (34) through a panel (35); a second column (37) is arranged between the rolling balls (36) and is located at the center of the second lifting plate (19); a marking block (38) is fixedly mounted on the second column (37); and the marking block (38) is pressed against and fitted to the carbon film plate.

8. A limiting and fixing device for preventing warping of a carbon film plate according to claim 7, characterized in that: The bottom of the second lifting plate (19) is provided with an annular groove (39) connected to the first column (34), the side wall of the panel (35) is provided with an arc surface connected to the rolling ball (36), and the marking block (38) and the second column (37) are connected by a positioning hole at the connection point and are locked and fixed by a positioning pin.

9. A limiting and fixing method for preventing a carbon film plate from warping, applied to a limiting and fixing device for preventing a carbon film plate from warping as claimed in any one of claims 1 to 7, characterized in that: The steps include: S1.

1. Place the carbon film plate on the conveyor line (1), use the limit guide mechanism (2) to clean the carbon film plate in the X-axis direction and the Y-axis direction, and use the guide wheel (13) to clamp the plate in the center to prevent deviation during transportation; S1.2, when the conveyor line (1) transports the carbon film plate to the pressing and fixing mechanism (15), the second cylinder (17) is started and drives the marking block (38) to perform pressing and marking processing on the carbon film plate; S1.3, step S1.2 During the pressing process, the driving motor (20) is started to drive the turntable (22) to rotate. Under the action of mechanical transmission, the second slider (30) drives the pressure plate (33) to limit and press the two ends of the carbon film plate. At the same time, the rolling ball (36) further limits and presses the outer wall edge of the carbon film plate by rotating.

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