Plate deviation rectifying device for vacuum printing

Abstract

The invention belongs to the technical field of PCB manufacturing, particularly relates to a plate deviation rectifying device for vacuum printing, and aims to solve the problems that when a PCB is arranged on a printing platform, the deviation rectifying difficulty of the PCB is increased, the deviation rectifying burden of a motor on the deviation rectifying device is increased, and the overall efficiency of the device is affected due to the fact that the PCB possibly deflects or deviates from the center position. Comprising a deviation correcting base, a mounting plate is arranged on the deviation correcting base, and a printing platform body is arranged on the mounting plate; and the two pressing plates are arranged on the mounting plate surface. The plate deviation rectifying device for vacuum printing has the effect of improving the PCB deviation rectifying efficiency, pre-deflection rectifying and pre-centering operation can be carried out on a PCB on the printing platform body through the device before precise deviation rectifying operation is carried out, and therefore it can be guaranteed that the PCB is in a good posture to be subjected to deviation rectifying before precise deviation rectifying is carried out; therefore, the difficulty of follow-up precise deviation correction is reduced, and the using effect of the device is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the field of PCB manufacturing technology, and particularly relates to a plate deviation rectifying device for vacuum printing. BACKGROUND

[0002] PCB, full name printed circuit board, is a very important basic component in the electronic industry, which forms conductive copper traces on an insulating substrate through a predetermined circuit design, and is used for connecting and supporting various electronic components (such as chips, resistors, capacitors, etc.), so as to form a complete working circuit. Almost all electronic devices cannot do without PCB, so it is often called "mother of electronic products".

[0003] PCB vacuum printing is a precise process for applying ink in the manufacturing of printed circuit boards, which uses vacuum adsorption technology to solve the printing defects caused by the micro-warping and unevenness of the plate in traditional printing, and is a key technology for realizing high-precision and high-quality ink coverage.

[0004] The existing PCB needs to be corrected by a deviation rectifying device when vacuum printing is performed, so as to ensure the accuracy during printing. However, when the PCB is arranged on the printing platform, the PCB itself may be deflected or deviated from the central position, which increases the difficulty of PCB deviation rectification, and further increases the deviation rectification burden of the motor on the deviation rectifying device, thereby affecting the overall efficiency of the device. SUMMARY

[0005] The application discloses a plate deviation rectifying device for vacuum printing, and aims to solve the technical problem that when the PCB is arranged on the printing platform, the PCB itself may be deflected or deviated from the central position, which increases the difficulty of PCB deviation rectification, and further increases the deviation rectification burden of the motor on the deviation rectifying device, thereby affecting the overall efficiency of the device.

[0006] The plate deviation rectifying device for vacuum printing comprises: A deviation rectifying base is provided with a mounting plate surface, and a printing platform body is arranged on the mounting plate surface; Two pressing plates are arranged on the mounting plate surface, and the two pressing plates are arranged on the two sides of the printing platform body, respectively; Two telescopic guide rail covers are arranged on the printing platform, and the two telescopic guide rail covers are located between the two pressing plates and the printing platform body, respectively; A central deviation rectifying unit is arranged on the printing platform body, and the central deviation rectifying unit comprises four central push plates and four lifting column seats; A platform cleaning module is arranged on the mounting plate surface, and the platform cleaning module comprises a drying sleeve layer and a cleaning sleeve layer.

[0007] In a preferred scheme, the centering deviation rectifying unit further comprises: Four electric telescopic rods, each of which is arranged on the printing platform body and at the same side, the output ends of the two electric telescopic rods are provided with the same linear guide rail, and two linear guide rails are provided with two linear lead screws; Two bidirectional motors, which are arranged on the two linear guide rails respectively, and the output shafts of the two bidirectional motors are connected with one end of the four linear lead screws through the shaft coupling respectively.

[0008] In a preferred scheme, the centering deviation rectifying unit further comprises: Four guide rail sliders, which are arranged on the four linear lead screws and the two linear guide rails respectively, and two guide frames are arranged on each of the four guide rail sliders, and four centering push plates are arranged on the guide frames; Four support pieces, which are arranged on the guide frames respectively, and mounting shafts are arranged on each of the four support pieces, and drive gears are arranged on the four mounting shafts.

[0009] In a preferred scheme, the centering deviation rectifying unit further comprises: Four servo motors, which are arranged on the four support pieces respectively, and the output shafts of the four servo motors are connected with one end of the four mounting shafts through the shaft coupling respectively; Four drive tooth plates, which are arranged on the four centering push plates respectively, and the four drive tooth plates are engaged with the four drive gears respectively; Two fixed frames, which are arranged on the two linear guide rails respectively.

[0010] In a preferred scheme, the centering deviation rectifying unit further comprises: Two connecting shafts, which are arranged on the two fixed frames respectively, and two overturning supports are arranged on each of the two connecting shafts, and two electric lifting rods are arranged on each of the two overturning supports; Two general motors, which are arranged on the two fixed frames respectively, and the output shafts of the two general motors are connected with one end of the two connecting shafts through the shaft coupling respectively; Four mounting frames, which are arranged on the output ends of the four electric lifting rods respectively, and drive motors are arranged on each of the four mounting frames, and the output shafts of the four drive motors are connected with the adjusting reels through the shaft coupling, and the four adjusting reels are located in the interiors of the four mounting frames respectively.

[0011] In a preferred scheme, the centering deviation rectifying unit further comprises: A plurality of connecting cables are arranged on the four adjusting reels, and four lifting column bases are arranged at one end of the plurality of connecting cables. Four support frames are arranged on the four mounting frames, and four telescopic spring rods are arranged on the four support frames.

[0012] In a preferred scheme, the platform cleaning module further comprises: Two electric rods are arranged on the mounting plate, and the output ends of the two electric rods are provided with a same fixing frame. An electric push rod is arranged on the fixing frame, and the output end of the electric push rod is provided with a mounting support, and two shaft rods are arranged on the mounting support.

[0013] In a preferred scheme, the platform cleaning module further comprises: Two linkage wheels are arranged on the two shaft rods, and the two linkage wheels are provided with a same linkage belt. A driving motor is arranged on the mounting support, and the output shaft of the driving motor is connected with one end of one of the shaft rods through a coupling.

[0014] In a preferred scheme, the platform cleaning module further comprises: A cleaning roller is arranged on one of the shaft rods, and a drying sleeve is arranged on the cleaning roller. A hollow rotating roller is arranged on the other shaft rod, and a rotating connecting seat is arranged on the hollow rotating roller, a plurality of wetting holes are arranged on the hollow rotating roller, and a cleaning sleeve is arranged on the hollow rotating roller.

[0015] In a preferred scheme, the platform cleaning module further comprises: A cleaning water tank is arranged on the mounting support, and a conveying pump is arranged on the cleaning water tank. A conveying pipe is arranged on the conveying pump, and a connecting head is arranged on the conveying pipe and the rotating connecting seat.

[0016] As can be seen from the above, the plate deviation correcting device for vacuum printing has the effect of improving the PCB deviation correcting efficiency, and can perform pre-deflection correction and pre-centering operation on the PCB on the printing platform body before precise deviation correction, so that the PCB can be in a good posture before precise deviation correction, thereby reducing the difficulty of subsequent precise deviation correction and increasing the use effect of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1A schematic diagram of the overall structure of a plate deviation correction device for vacuum printing is provided in the present application; Figure 2 A schematic diagram of the overall structure of a plate deviation correction device for vacuum printing is provided in the present application; Figure 3 A schematic diagram of the overall structure of a plate deviation correction device for vacuum printing is provided in the present application; Figure 4 A schematic diagram of the overall structure of a plate deviation correction device for vacuum printing is provided in the present application; Figure 5 A schematic diagram of the overall structure of a plate deviation correction device for vacuum printing is provided in the present application; Figure 6 A schematic diagram of the overall structure of a plate deviation correction device for vacuum printing is provided in the present application; Figure 7 A schematic diagram of the overall structure of a plate deviation correction device for vacuum printing is provided in the present application; Figure 8 A schematic diagram of the overall structure of a plate deviation correction device for vacuum printing is provided in the present application; Figure 9 A schematic diagram of the overall structure of a plate deviation correction device for vacuum printing is provided in the present application; Figure 10 A schematic diagram of the overall structure of a plate deviation correction device for vacuum printing is provided in the present application.

[0018] In the figure: 1, deviation correcting base; 2, platform cleaning module; 201, electric rod; 202, fixing frame; 203, electric push rod; 204, driving motor; 205, cleaning water tank; 206, conveying pump; 207, mounting support; 208, conveying pipe; 209, rotary connecting seat; 210, connecting head; 211, cleaning roller; 212, hollow rotating roller; 213, wetting hole; 214, drying sleeve layer; 215, cleaning sleeve layer; 216, linkage belt; 217, shaft rod; 218, linkage wheel; 3, mounting plate surface; 4, printing platform body; 5, centering deviation correcting unit; 501, electric telescopic rod; 502, bidirectional motor; 503, linear screw; 504, linear guide rail; 505, overturning support; 506, electric lifting rod; 507, guide rail slider; 508, centering push plate; 509, servo motor; 510, driving gear; 511, driving gear plate; 512, guide frame; 513, mounting shaft; 514, general motor; 515, connecting shaft; 516, fixing frame; 517, mounting frame; 518, lifting column seat; 519, lifting ball; 520, adjusting reel; 521, connecting cable; 522, driving motor; 523, support frame; 524, telescopic spring rod; 525, support piece; 6, pressing plate; 7, telescopic guide rail cover. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0020] The disclosed plate deviation correcting device for vacuum printing is mainly applied to the scenario that when the PCB is arranged on the printing platform, the PCB may deviate or deviate from the center position, which increases the difficulty of correcting the PCB deviation, further increases the deviation correcting burden of the motor on the deviation correcting device, and affects the overall efficiency of the device.

[0021] Reference Figures 1-10 A plate deviation correcting device for vacuum printing, comprising: A deviation correcting base 1, the deviation correcting base 1 is provided with a mounting plate surface 3, and the mounting plate surface 3 is provided with a printing platform body 4; Two pressing plates 6, both of which are arranged on the mounting plate surface 3, and both of which are arranged on the two sides of the printing platform body 4; Two telescopic guide rail covers 7, both of which are arranged on the printing platform, and both of which are located between the two pressing plates 6 and the printing platform body 4; A centering deviation correcting unit 5, which is arranged on the printing platform body 4 and comprises four centering push plates 508 and four lifting column seats 518; A platform cleaning module 2 is arranged on the mounting plate surface 3, and the platform cleaning module 2 comprises a drying cover layer 214 and a cleaning cover layer 215.

[0022] The device: the pressing plate 6 can press the PCB on the platform after alignment in use, so as to prevent the PCB from moving during printing, and the pressing plate 6 is lifted away from the table surface when the PCB is fed, and the PCB is fixed after being aligned and being pressed to the edge of the plate. The deviation correction base 1 is provided with a plurality of servo motors 509 for angle adjustment, so as to correct the positions of the top printing platform body 4 and the PCB. The printing platform body 4 can adjust its own width and place the PCB in use.

[0023] Reference Figures 1-7 In a preferred embodiment, the centering deviation correction unit 5 further comprises: Four electric telescopic rods 501 are arranged on the printing platform body 4, and the output ends of the two electric telescopic rods 501 on the same side are provided with the same linear guide rail 504, and the two linear guide rails 504 are provided with two linear lead screws 503. Two bidirectional motors 502 are arranged on the two linear guide rails 504, and the two output shafts of the two bidirectional motors 502 are connected to one end of the four linear lead screws 503 through a shaft coupling.

[0024] In the present application, the centering deviation correction unit 5 further comprises: Four guide rail sliders 507 are arranged on the four linear lead screws 503 and the two linear guide rails 504, and the four guide rail sliders 507 are provided with two guide frames 512, and four centering push plates 508 are arranged on the guide frames 512. Four support pieces 525 are arranged on the guide frames 512, and the four support pieces 525 are provided with mounting shafts 513, and the four mounting shafts 513 are provided with drive gears 510.

[0025] In the present application, the centering deviation correction unit 5 further comprises: Four servo motors 509 are arranged on the four support pieces 525, and the output shafts of the four servo motors 509 are connected to one end of the four mounting shafts 513 through a shaft coupling. Four drive tooth plates 511 are arranged on the four centering push plates 508, and the four drive tooth plates 511 are engaged with the four drive gears 510. Two fixed frames 516 are arranged on the two linear guide rails 504.

[0026] In the application, the centering and deviation rectifying unit 5 further comprises: Two connecting shafts 515 are arranged on the two fixed frames 516 respectively, and the two connecting shafts 515 are provided with turnover brackets 505 respectively, and the two turnover brackets 505 are provided with two electric lifting rods 506 respectively; Two universal motors 514 are arranged on the two fixed frames 516 respectively, and the output shafts of the two universal motors 514 are connected with one end of the two connecting shafts 515 through couplings respectively; Four mounting frames 517 are arranged on the output ends of the four electric lifting rods 506 respectively, and the four mounting frames 517 are provided with driving motors 522 respectively, and the output shafts of the four driving motors 522 are connected with adjusting reels 520 through couplings respectively, and the four adjusting reels 520 are located in the interiors of the four mounting frames 517 respectively.

[0027] In the application, the centering and deviation rectifying unit 5 further comprises: A plurality of connecting cables 521 are arranged on the four adjusting reels 520 respectively, and four lifting column bases 518 are arranged on one end of the plurality of connecting cables 521 respectively, and the four lifting column bases 518 are provided with lifting balls 519 respectively; Four bracket frames 523 are arranged on the four mounting frames 517 respectively, and the four bracket frames 523 are provided with four telescopic spring rods 524 respectively, and one end of the plurality of telescopic spring rods 524 is arranged on the four lifting column bases 518 respectively.

[0028] Specifically, before pre-correction and pre-centering, the electric telescopic rod 501 operates to make the linear guide rail 504 ascend until the centering push plate 508 ascends to the same horizontal height of the PCB, at this time, the universal motor 514 operates to drive the connecting shaft 515 and the turnover bracket 505 to rotate to adjust the position of the electric lifting rod 506 so that it is located above the printing platform, then the electric lifting rod 506 operates to make the mounting frame 517, the bracket frame 523 and the lifting column base 518 and other structures enter the gap of the printing platform body 4, at this time, the driving motor 522 operates to drive the adjusting reel 520 to rotate and make the adjusting reel 520 relax the connecting cable 521 to cooperate with the telescopic spring rod 524 to make the lifting column base 518 away from the mounting frame 517, and until the lifting column base 518 drives the lifting ball 519 to move to below the PCB, at this time, the electric lifting rod 506 operates again to adjust the height of the lifting ball 519 to make it contact with the PCB and slightly lift the PCB to avoid excessive friction between the PCB and the printing platform body 4 in the pre-correction and pre-centering process; When pre-correcting and pre-centering, the servo motor 509 operates, the servo motor 509 drives the installation shaft 513 and the driving gear 510 to rotate, because the driving gear 510 is engaged with the driving gear plate 511, so that the servo motor 509 can drive the driving gear plate 511 to move, thereby making the centering push plate 508 move, and making the centering push plate 508 contact with the PCB, to push the PCB to pre-correct and pre-center, until the PCB is in a good posture for correction, and the pre-correcting and pre-centering are completed. In a specific application scenario, the centering and correcting unit 5 is suitable for PCB posture pre-correcting and pre-centering, that is, the centering and correcting unit 5 can pre-correct and pre-center the PCB on the printing platform body 4 before the precise correction operation, so that the PCB can be ensured to be in a good posture for correction through the cooperation of the centering push plate 508, the lifting column seat 518 and the lifting ball 519 before the precise correction, thereby reducing the difficulty of subsequent precise correction, and further reducing the correction burden of the motor on the correcting device, so as to improve the use efficiency of the device. It should be noted that when the PCB posture pre-correcting and pre-centering operation is performed, the lifting column seat 518 and the lifting ball 519 can lift the PCB slightly, so that the PCB is prevented from being excessively contacted and rubbed with the printing platform body 4 during the pre-correcting and pre-centering, thereby avoiding the PCB abrasion, and further improving the use effect of the device.

[0029] Referring to Figure 1 , Figure 2 , Figure 8 , Figure 9 and Figure 10 , in a preferred embodiment, the platform cleaning module 2 further comprises: two electric rods 201, both of which are arranged on the mounting plate surface 3, and the output ends of the two electric rods 201 are provided with the same fixing frame 202; an electric push rod 203, which is arranged on the fixing frame 202, and the output end of the electric push rod 203 is provided with a mounting bracket 207, and two shaft members 217 are arranged on the mounting bracket 207.

[0030] In the present application, the platform cleaning module 2 further comprises: two linkage wheels 218, which are arranged on the two shaft members 217 respectively, and the same linkage belt 216 is arranged on the two linkage wheels 218; a driving motor 204, which is arranged on the mounting bracket 207, and the output shaft of the driving motor 204 is connected with one end of one of the shaft members 217 through a coupling.

[0031] In the present application, the platform cleaning module 2 further comprises: The cleaning roller 211 is arranged on one of the shaft members 217, and the drying sleeve layer 214 is arranged on the cleaning roller 211. The hollow rotating roller 212 is arranged on the other shaft member 217, and the rotating connecting seat 209 is arranged on the hollow rotating roller 212. A plurality of wetting holes 213 are arranged on the hollow rotating roller 212, and the cleaning sleeve layer 215 is arranged on the hollow rotating roller 212.

[0032] In the present application, the platform cleaning module 2 further comprises: The cleaning water tank 205 is arranged on the mounting bracket 207, and the delivery pump 206 is arranged on the cleaning water tank 205. The delivery pipe 208 is arranged on the delivery pump 206, and the connecting head 210 is arranged on the delivery pipe 208 and the rotating connecting seat 209.

[0033] Specifically, during cleaning, the printing platform body 4 adjusts its width to the minimum, and then the electric rod member 201 operates to lift the fixed frame 202, the cleaning roller 211 and the hollow rotating roller 212 until they are above the printing platform body 4. Then the electric push rod 203 operates to further adjust the positions of the cleaning roller 211 and the hollow rotating roller 212, and to make the drying sleeve layer 214 and the cleaning sleeve layer 215 contact the surface of the printing platform body 4. At this time, the delivery pump 206 operates to deliver the cleaning water or chemical agent in the cleaning water tank 205 to the inside of the hollow rotating roller 212 through the delivery pipe 208, and to discharge the cleaning water or chemical agent through the wetting holes 213 on the hollow rotating roller 212, so that the cleaning sleeve layer 215 is in a wet state. At the same time, the driving motor 204 operates to drive one of the shaft members 217 to rotate, and cooperates with the linkage wheel 218 and the linkage belt 216 to make the two shaft members 217 rotate synchronously, so that the cleaning roller 211 and the hollow rotating roller 212 rotate synchronously to clean, and the drying sleeve layer 214 removes the residues of the cleaning water or chemical agent, until the cleaning is completed. In specific application scenarios, the platform cleaning module 2 is suitable for the cleaning link of the printing platform body 4, that is, the platform cleaning module 2 can clean the surface of the printing platform body 4 when in use, so as to remove the accidentally adhered ink on the printing platform body 4 before the deviation correction operation, to avoid that the ink causes the PCB to be lifted locally, so as to ensure that the PCB is in a flat state during the deviation correction and subsequent printing, thereby ensuring the deviation correction accuracy and subsequent printing precision, to further increase the use effect of the device. It should be noted that the cleaning sleeve layer 215 can be in a wet state during cleaning to increase the cleaning effect on the ink, and after wet cleaning, the device can also clean the water marks left on the surface of the printing platform by the drying sleeve layer, to improve the cleaning quality of the device. The cleaning water tank 205 can be filled with warm water or special chemicals in advance to increase the cleaning effect on the ink.

[0034] Working principle: When cleaning, the printing platform body 4 adjusts its width to the minimum, and then the electric lever 201 operates to make the fixed frame 202, the cleaning roller 211, and the hollow rotating roller 212 rise until they rise above the printing platform body 4. Then the electric push rod 203 operates to further adjust the position of the cleaning roller 211 and the hollow rotating roller 212, and make the drying sleeve layer 214 and the cleaning sleeve layer 215 contact the surface of the printing platform body 4. At this time, the delivery pump 206 operates to deliver the cleaning water or chemicals in the cleaning water tank 205 to the inside of the hollow rotating roller 212 through the delivery pipe 208, and then discharge the cleaning water or chemicals through the wet holes 213 on the hollow rotating roller 212 to make the cleaning sleeve layer 215 in a wet state. At the same time, the main motor 204 moves to drive one of the shaft rods 217 to rotate, and cooperates with the linkage wheel 218 and the linkage belt 216 to make the two shaft rods 217 rotate synchronously, so that the cleaning roller 211 and the hollow rotating roller 212 rotate synchronously to clean, and the drying sleeve layer 214 handles the residue of the cleaning water or chemicals until the cleaning is completed. Before pre-correction and pre-centering, the electric telescopic rod 501 operates to make the linear guide rail 504 rise until the centering push plate 508 rises to the same horizontal height as the PCB. At this time, the general motor 514 operates to drive the connecting shaft 515 and the turnover bracket 505 to rotate to adjust the position of the electric lifting rod 506, so that it is located above the printing platform. Then the electric lifting rod 506 operates to make the installation frame 517, the bracket frame 523, and the lifting column seat 518 enter the gap of the printing platform body 4. At this time, the drive motor 522 operates to drive the adjusting reel 520 to rotate and loosen the connecting cable 521, so as to cooperate with the telescopic spring rod 524 to make the lifting column seat 518 away from the installation frame 517, and until the lifting column seat 518 drives the lifting ball 519 to move below the PCB. At this time, the electric lifting rod 506 operates again to adjust the height of the lifting ball 519 to make it contact with the PCB and slightly lift the PCB to avoid excessive friction between the PCB and the printing platform body 4 during pre-correction and pre-centering. When pre-correcting and pre-centering, the servo motor 509 operates, and the servo motor 509 drives the installation shaft 513 and the driving gear 510 to rotate. Since the driving gear 510 is engaged with the driving tooth plate 511, the servo motor 509 can drive the driving tooth plate 511 to move, so as to make the centering push plate 508 move, and make the centering push plate 508 contact with the PCB, so as to push the PCB to pre-correct and pre-center, until the PCB is in a good posture for correction, and the pre-correcting and pre-centering are completed.

[0035] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A plate alignment device for vacuum printing, characterized in that, include: Correction base (1), the correction base (1) is provided with mounting plate (3), the mounting plate (3) is provided with printing platform body (4); Two pressure plates (6) are provided on the mounting plate surface (3), and the two pressure plates (6) are respectively provided on both sides of the printing platform body (4); Two telescopic guide rail covers (7) are provided on the printing platform. The two telescopic guide rail covers (7) are respectively located between the two pressure plates (6) and the printing platform body (4). Centering correction unit (5) is set on the printing platform body (4). The centering correction unit (5) includes four centering push plates (508) and four lifting column seats (518). Platform cleaning module (2) is mounted on the mounting plate (3). The platform cleaning module (2) includes a drying sleeve (214) and a cleaning sleeve (215).

2. The vacuum printing plate correction device according to claim 1, characterized in that, The centering and correction unit (5) also includes: Four electric telescopic rods (501) are installed on the printing platform body (4). The output ends of the two electric telescopic rods (501) on the same side are provided with the same linear guide rail (504). Two linear guide rails (504) are provided with two linear screws (503). Two bidirectional motors (502) are respectively mounted on two linear guide rails (504), and the two output shafts of the two bidirectional motors (502) are respectively connected to one end of four linear lead screws (503) through couplings.

3. The vacuum printing plate correction device according to claim 2, characterized in that, The centering and correction unit (5) also includes: Four guide rail sliders (507) are respectively set on four linear lead screws (503) and two linear guide rails (504). Each of the four guide rail sliders (507) is provided with two guide frames (512). Four central push plates (508) are respectively set on multiple guide frames (512). Four support members (525) are respectively disposed on multiple guide frames (512). Each of the four support members (525) is provided with a mounting shaft (513), and each of the four mounting shafts (513) is provided with a drive gear (510).

4. The vacuum printing plate correction device according to claim 3, characterized in that, The centering and correction unit (5) also includes: Four servo motors (509) are respectively mounted on four brackets (525), and the output shafts of the four servo motors (509) are respectively connected to one end of four mounting shafts (513) through couplings. Four drive gear plates (511) are respectively disposed on four central push plates (508), and the four drive gear plates (511) respectively mesh with four drive gears (510); Two fixed frames (516) are respectively set on two linear guides (504).

5. The vacuum printing plate correction device according to claim 4, characterized in that, The centering and correction unit (5) also includes: Two connecting shafts (515) are respectively set on two fixed frames (516). Each of the two connecting shafts (515) is provided with a flip bracket (505), and each of the two flip brackets (505) is provided with two electric lifting rods (506). Two general-purpose motors (514) are respectively mounted on two fixed frames (516), and the output shafts of the two general-purpose motors (514) are respectively connected to one end of two connecting shafts (515) through couplings; Four mounting frames (517) are respectively set at the output ends of four electric lifting rods (506). Each of the four mounting frames (517) is equipped with a drive motor (522). The output shafts of the four drive motors (522) are connected to adjusting rollers (520) through couplings. The four adjusting rollers (520) are respectively located inside the four mounting frames (517).

6. The vacuum printing plate correction device according to claim 5, characterized in that, The centering and correction unit (5) also includes: Multiple connecting cables (521) are respectively disposed on four adjusting rollers (520), and four lifting column seats (518) are respectively disposed on one end of the multiple connecting cables (521). Each of the four lifting column seats (518) is provided with a lifting ball (519). Four support frames (523) are respectively set on four mounting frames (517). Each of the four support frames (523) is provided with four telescopic spring rods (524). One end of each of the multiple telescopic spring rods (524) is respectively set on four lifting column seats (518).

7. The vacuum printing plate correction device according to claim 1, characterized in that, The platform cleaning module (2) also includes: Two electric rods (201) are mounted on the mounting plate (3), and the output ends of the two electric rods (201) are provided with the same fixing frame (202). An electric push rod (203) is mounted on a fixed frame (202). The output end of the electric push rod (203) is provided with a mounting bracket (207), and two shaft members (217) are provided on the mounting bracket (207).

8. A vacuum printing plate correction device according to claim 7, characterized in that, The platform cleaning module (2) also includes: Two linkage wheels (218) are respectively mounted on two shaft members (217), and the two linkage wheels (218) are provided with the same linkage belt (216). An active motor (204) is mounted on a mounting bracket (207), and the output shaft of the active motor (204) is connected to one end of one of the shaft members (217) via a coupling.

9. A vacuum printing plate correction device according to claim 8, characterized in that, The platform cleaning module (2) also includes: A cleaning roller (211) is mounted on one of the shaft members (217), and the drying sleeve (214) is mounted on the cleaning roller (211); Hollow rotating roller (212) is mounted on another shaft member (217). A rotating connecting seat (209) is provided on the hollow rotating roller (212). Multiple wetting holes (213) are also provided on the hollow rotating roller (212). A cleaning sleeve (215) is provided on the hollow rotating roller (212).

10. A vacuum printing plate correction device according to claim 9, characterized in that, The platform cleaning module (2) also includes: A cleaning water tank (205) is mounted on a mounting bracket (207), and a delivery pump (206) is mounted on the cleaning water tank (205). A delivery pipe (208) is provided on a delivery pump (206), and a connector (210) is provided on the delivery pipe (208), which is located on a rotating connecting seat (209).

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