Automatic adjusting platform of plate pasting machine

Abstract

The utility model relates to the technical field of automatic adjusting mechanisms, and discloses an automatic adjusting platform of a plate pasting machine, which comprises a base, two cross beams are fixedly connected between the upper sides of the base, a plurality of bull eye bearings are arranged on the upper sides of the two cross beams, and a vacuum platform is supported at the tops of the bull eye bearings. First connecting plates are fixedly connected to the left side and the right side of the lower portion of the vacuum platform, linear sliding blocks are fixedly connected to the bottoms of the first connecting plates, a fixing plate is fixedly connected to the left side of the lower portion of the vacuum platform, a pulling plate is fixedly connected to the left side of the fixing plate, and two translation mechanisms and a rotating mechanism are installed on the lower side of the vacuum platform. According to the utility model, the rotating mechanism, the translation mechanism and the vacuum platform with the support are arranged, and the rotating mechanism and the translation mechanism driven by the motor are high in precision and high in efficiency, so that the problems of low precision, high cost and low efficiency of the existing platform are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic adjustment mechanisms, in particular to an automatic adjustment platform for a plate mounting machine. Background Art

[0002] A plate mounter is a device used in the printing industry. It places the printing plate on a workbench and uses the vacuum suction generated by a vacuum pump to adsorb the printing plate flatly on the workbench to ensure that the plate will not shift during the mounting process and accurately attach the printing plate to the roller or plate carrier of the printing press.

[0003] The main working principle of the plate mounting machine on the market is to use two cameras that move left and right on the linear guide rails to magnify the crosshairs on both sides of the printing plate and display them on the monitor screen, and manually adjust the printing plate to compare and align with the fixed crosshairs on the monitor screen. As the requirements for printing registration become higher and higher, manual plate mounting is time-consuming and labor-intensive, and it is difficult to achieve the required accuracy requirements. The plate mounting machine equipped with an automatic adjustment platform only needs to place the printing plate on the platform, and the printing plate is vacuum-adsorbed onto the platform. After the registration patterns on both sides of the printing plate are visually detected by the camera, the three motors on the automatic adjustment platform rotate and move the platform left and right. The plate mounting speed and accuracy are better than manual adjustment. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an automatic adjustment platform for a plate mounting machine, aiming to improve the problem in the prior art that manual plate mounting is time-consuming and labor-intensive and difficult to achieve the required precision requirements.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an automatic adjustment platform of a plate mounter, comprising a base, two crossbeams fixedly connected between the upper sides of the base, multiple bull's eye bearings are installed on the upper sides of the two crossbeams, a vacuum platform is supported on the top of the multiple bull's eye bearings, a first connecting plate is fixedly connected to the left and right sides of the lower part of the vacuum platform, a linear slider is fixedly connected to the bottom of the first connecting plate, a fixed plate is fixedly connected to the left side of the lower part of the vacuum platform, a pull plate is fixedly connected to the left side of the fixed plate, and two rotating mechanisms and a translation mechanism are installed on the lower side of the vacuum platform;

[0006] The rotating mechanism includes a motor, which is installed on the front and rear side of the base through a motor fixing plate. The output end of the motor is fixedly connected to a locking sleeve, and an eccentric drive sleeve is installed on the outside of the locking sleeve. A bearing is provided on the outer side of the eccentric drive sleeve, and a drive seat is fixedly connected to the upper side of the bearing. A linear guide is fixedly connected to the top of the drive seat. The eccentric drive sleeve and the locking sleeve are integrated and directly key-connected to the motor.

[0007] As a further description of the above technical solution:

[0008] The translation mechanism includes a motor, which is fixedly connected to the middle part of the upper side of the base through a motor fixing plate, and the output end of the motor is fixedly connected to a locking sleeve, an eccentric drive sleeve is installed inside the locking sleeve, and a bearing is provided on the outer side of the eccentric drive sleeve, and a drive seat is fixedly connected to the upper side of the bearing, and an angle plate is fixedly connected to the top of the drive seat, and a second connecting plate is fixedly connected to the front side of the angle plate, and the end of the second connecting plate away from the angle plate is fixedly connected to the left side of the pull plate.

[0009] As a further description of the above technical solution:

[0010] The outer side of the linear guide rail is slidably connected to the inside of the linear slider, and the pull plate is an elastic connecting plate, which ensures that the vacuum platform can rotate when the rotating mechanism rotates.

[0011] As a further description of the above technical solution:

[0012] The two linear guide rails are arranged in parallel.

[0013] As a further description of the above technical solution:

[0014] The front part of the vacuum platform is provided with small holes that run through it vertically and are evenly arranged, and the small holes are used for vacuum extraction.

[0015] As a further description of the above technical solution:

[0016] The bull's eye bearings are arranged on the upper side of the beam and can be adjusted up and down to support and calibrate the vacuum platform. The number of bull's eye bearings varies depending on the width of the machine to achieve the desired support and calibration effect for the platform. As a further description of the above technical solution:

[0017] The motor in the rotating mechanism is used to drive the rotation of the eccentric drive sleeve, the linear guide rail and the linear slider, and to drive the rotation of the vacuum platform.

[0018] As a further description of the above technical solution:

[0019] The bottom of the vacuum platform is provided with vertical and horizontal supports.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the problems of low precision, high cost and low efficiency of the existing platform are solved by using a rotating mechanism, a translation mechanism and a supported vacuum platform, and the motor-driven rotating mechanism and translation mechanism have high precision and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a three-dimensional diagram of the automatic adjustment platform of the plate mounter proposed by the utility model;

[0023] Figure 2 This is a top view of the automatic adjustment platform of a plate mounter proposed by the utility model;

[0024] Figure 3 This is a front view of an automatic adjustment platform of a plate mounter proposed by the utility model;

[0025] Figure 4 This is a schematic diagram of the automatic adjustment platform rotation mechanism of the plate mounter proposed in this utility model

[0026] Figure 5 This is a schematic diagram of an automatic adjustment platform translation mechanism for a plate mounter proposed in the present invention;

[0027] Figure 6 This is a schematic diagram of the printing plate placement state of the automatic adjustment platform translation mechanism of the plate mounter proposed by the utility model;

[0028] Figure 7 This is a diagram showing the initial adjustment state of the printing plate position of the automatic adjustment platform translation mechanism of the plate mounter proposed by the utility model;

[0029] Figure 8 This is a schematic diagram of the secondary adjustment state of the automatic adjustment platform translation mechanism of the plate mounter proposed by the utility model;

[0030] Figure 9 This is a schematic diagram of three adjustment states of the automatic adjustment platform translation mechanism of a plate mounter proposed by the utility model.

[0031] Legend:

[0032] 1. Vacuum platform; 2. Bull's eye bearing; 3. Crossbeam; 4. First connecting plate; 5. Linear slider; 6. Linear guide; 7. Motor fixing plate; 8. Motor; 9. Base; 10. Fixing plate; 11. Pull plate; 12. Second connecting plate; 13. Angle plate; 14. Eccentric drive sleeve; 15. Translation mechanism; 16. Rotation mechanism; 17. Drive seat; 18. Locking sleeve; 19. Bearing. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Reference Figure 1-Figure 3The utility model provides an embodiment: an automatic adjustment platform of a plate mounting machine, including a base 9, which serves as the basic supporting structure of the entire platform and provides a stable installation foundation for the components above. Two cross beams 3 are fixedly connected between the upper sides of the base 9. The function of the cross beam 3 is to connect the two bases 9 to form an overall frame structure. Multiple bull's eye bearings 2 are installed on the upper sides of the two cross beams 3. The bull's eye bearings 2 can rotate flexibly. Its special structure makes the contact with the upper vacuum platform 1 smoother and reduces friction. At the same time, it can adapt to the slight displacement and angle change of the vacuum platform 1 to a certain extent. The top of multiple bull's eye bearings 2 supports the vacuum platform 1. The vacuum platform 1 is the main working area of ​​the plate mounting operation. Its surface flatness is high, which can provide a stable plane for the plate mounting process. The left and right sides of the lower part of the vacuum platform 1 are fixedly connected to the first connecting plate. 4. The first connecting plate 4 serves to connect the vacuum platform 1 and other moving parts. A linear slider 5 is fixedly connected to the bottom of the first connecting plate 4. The linear slider 5 can perform precise linear motion along the linear guide rail 6, ensuring the accuracy and stability of the vacuum platform 1 during the translation process. A fixed plate 10 is fixedly connected to the left side of the lower part of the vacuum platform 1. The fixed plate 10 provides a stable connection point for the pulling plate 11 to ensure that the pulling plate 11 will not loosen or move during the pulling process. A pulling plate 11 is fixedly connected to the left side of the fixed plate 10. The pulling plate 11 can drive the vacuum platform 1 to move horizontally under the action of the translation mechanism 15. Two rotating mechanisms 16 and a translation mechanism 15 are installed on the lower side of the vacuum platform 1. The translation mechanism 15 and the rotating mechanism 16 cooperate with each other to achieve precise adjustment of the vacuum platform 1 in the plane to meet different plate mounting requirements;

[0035] Reference Figure 1 and Figure 4The rotating mechanism 16 includes a motor 8. The motor 8 serves as the power source of the rotating mechanism 16 and can provide a stable torque output. The motor 8 is installed on the front rear side of the base 9 through the motor fixing plate 7. The motor fixing plate 7 firmly fixes the motor 8 on the base 9 to prevent the motor 8 from vibrating or displacing during operation, thereby ensuring the accuracy of the rotational motion. The output end of the motor 8 is fixedly connected with a locking sleeve 18. The locking sleeve 18 can tightly connect the output shaft of the motor 8 with the eccentric drive sleeve 14 to ensure that there is no loosening during the rotation process, so that the power can be effectively transmitted. The eccentric drive sleeve 14 is installed on the outside of the locking sleeve 18. The eccentric design of the eccentric drive sleeve 14 enables a specific motion trajectory to be generated during the rotation process, thereby driving other The components perform corresponding movements. A bearing 19 is provided on the outer side of the eccentric drive sleeve 14. The bearing 19 can reduce the friction of the eccentric drive sleeve 14 during rotation, improve the rotation efficiency, and at the same time withstand the radial force and axial force generated by the eccentric drive sleeve 14. A drive seat 17 is fixedly connected to the upper side of the bearing 19. The drive seat 17 transmits the movement of the bearing 19 to the linear guide 6, so that the linear guide 6 can generate corresponding movement with the rotation of the eccentric drive sleeve 14. The linear guide 6 is fixedly connected to the top of the drive seat 17. The linear guide 6 provides a precise motion track for the linear slider 5 to ensure the stability and accuracy of the vacuum platform 1 during rotation. The eccentric drive sleeve 14 and the locking sleeve 18 become one, and are directly connected and fixed to the motor 8.

[0036] Reference Figure 5The translation mechanism 15 includes a motor 8. The motor 8 is the power core of the translation mechanism 15 and provides power for the entire translation process. The motor 8 is fixedly connected to the upper front part of the base 9 through the motor fixing plate 7 to ensure the stability of the motor 8 during operation. The output end of the motor 8 is fixedly connected with a locking sleeve 18. The locking sleeve 18 ensures a reliable connection between the motor 8 and the eccentric drive sleeve 14, so that power can be transmitted smoothly to avoid power interruption or loosening during operation. The eccentric drive sleeve 14 is installed on the outside of the locking sleeve 18. The eccentric drive sleeve 14 converts the rotational motion of the motor 8 into a specific linear motion. The outer sleeve of the eccentric drive sleeve 14 is provided with a bearing 19. The bearing 19 effectively reduces the friction and wear of the eccentric drive sleeve 14 during rotation, extends the service life of the components, and ensures the smoothness of the movement. The upper side of the bearing 19 is fixedly connected with a drive sleeve The moving seat 17 and the driving seat 17 transmit the movement of the bearing 19 to the angle plate 13, so that the angle plate 13 can generate corresponding displacement with the rotation of the eccentric driving sleeve 14. The top of the driving seat 17 is fixedly connected with the angle plate 13. The angle plate 13 serves as an intermediate connecting component, which changes the direction of force transmission and transmits the force from the driving seat 17 to the second connecting plate 12. The front side of the angle plate 13 is fixedly connected with the second connecting plate 12. The second connecting plate 12 further transmits the force to the pulling plate 11, thereby realizing the translation drive of the vacuum platform 1. The end of the second connecting plate 12 away from the angle plate 13 is fixedly connected to the left side of the pulling plate 11. The second connecting plate 12 transmits the movement of the angle plate 13 to the pulling plate 11, so that the pulling plate 11 can drive the vacuum platform 1 to move horizontally under the drive of the translation mechanism 15, thereby realizing the effective transmission of power from the translation mechanism 15 to the vacuum platform 1.

[0037] Reference Figure 1 and Figure 4 The outer side of the linear guide rail 6 is slidably connected to the inside of the linear slider 5. The sliding connection method enables the linear slider 5 to perform high-precision linear motion along the linear guide rail 6. The pull plate 11 is an elastic connecting plate to ensure that the vacuum platform 1 can rotate when the rotating mechanism 16 rotates.

[0038] Reference Figure 1 and Figure 2 The two linear guide rails 6 are arranged in parallel. When the two rotating mechanisms 16 work simultaneously, the parallel linear guide rails 6 can ensure that the vacuum platform 1 remains horizontal during the rotation process to avoid tilting.

[0039] Reference Figure 1 and Figure 2 The front of the vacuum platform 1 is provided with small holes that run through it from top to bottom and are evenly arranged. The small holes are used for vacuum extraction. The vacuum extraction system is connected to the small holes, which can form a negative pressure environment on the surface of the vacuum platform 1, firmly adsorbing the plate on the surface of the vacuum platform 1 to prevent the plate from shifting during the mounting process.

[0040] Reference Figure 1 The bull's eye bearing 2 is arranged on the upper side of the beam 3 and can be adjusted up and down. The bull's eye bearing 2 is used to support and calibrate the vacuum platform 1. The bull's eye bearing 2 can evenly share the weight of the vacuum platform 1, so that the vacuum platform 1 can be stably supported on the beam 3. Adjusting the height of the bull's eye bearing 2 can calibrate the bending of the vacuum platform 1.

[0041] Reference Figure 1 and Figure 4 The motor 8 in the rotating mechanism 16 is used to drive the rotation of the eccentric drive sleeve 14, the linear guide 6 and the linear slider 5, and to drive the rotation of the vacuum platform 1. After the motor 8 is started, its output shaft drives the locking sleeve 18 to rotate, thereby causing the eccentric drive sleeve 14 to rotate around its axis. Due to the cooperation between the eccentric drive sleeve 14 and the bearing 19, the bearing 19 will generate corresponding movement as the eccentric drive sleeve 14 rotates, and this movement is transmitted to the linear guide 6 through the drive seat 17. The movement of the linear guide 6 causes the linear slider 5 to slide along the surface of the linear guide 6. Since the linear slider 5 is connected to the first connecting plate 4, and the first connecting plate 4 is fixed on the vacuum platform 1, the rotation of the vacuum platform 1 is finally realized. This rotational movement can accurately adjust the angle of the vacuum platform 1 to meet the requirements of different plate mounting processes for the plate angle, thereby improving the adaptability and flexibility of the plate mounting machine.

[0042] Reference Figure 1-Figure 3 The bottom of the vacuum platform 1 is provided with longitudinal and transverse supports. The transverse supports can effectively prevent the vacuum platform 1 from bending and deforming in the length direction, while the longitudinal supports provide sufficient supporting force in the width direction to avoid local depression or deformation of the vacuum platform 1.

[0043] Working principle: The printing plate is placed on the vacuum platform 1, and the positioning patterns on the left and right sides of the printing plate are placed within the range displayed on the screen. The vacuum pump starts to suck air and adsorbs the printing plate onto the vacuum platform 1. The positioning pattern printed on the screen deviates from the center of the cross line displayed on the screen in the x and y directions. At the same time, the line connecting the centers of the positioning patterns on both sides of the printing plate and the line connecting the centers of the cross on the screen form an angle θ, as shown in Figure 6. First, after visual inspection by the camera, the motor 8 of the left rotating mechanism 16 is rotated to drive the platform to rotate. At this time, the other two motors 8 on the platform remain stationary, and the line connecting the centers of the positioning patterns on both sides of the printing plate is adjusted to be parallel to the line connecting the centers of the cross on the screen, as shown in Figure 7.

[0044] Then, after the camera visually inspects, if there is any deviation in the Y direction between the centers of the positioning patterns on both sides of the printing plate and the center of the cross on the screen, the motors 8 of the two rotating mechanisms 16 rotate synchronously to drive the vacuum platform 1 to rotate, while the other motor 8 remains stationary to adjust the centers of the positioning patterns on both sides of the printing plate and the center of the cross on the screen to be consistent in the Y direction, as shown in Figure 8.

[0045] Finally, after the camera visually inspects the center of the positioning patterns on both sides of the printing plate and the center of the cross on the screen, if there is any deviation in the X direction, the motor 8 of the translation mechanism 15 rotates, driving the vacuum platform 1 to translate. The other two motors 8 remain stationary, adjusting the center of the positioning patterns on both sides of the printing plate and the center of the cross on the screen to align in the X direction. This ensures that the center of the positioning patterns on both sides of the printing plate coincides with the center of the cross on the screen, as shown in Figure 9.

[0046] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic adjustment platform for a plate mounter, comprising a base (9), characterized in that: Two crossbeams (3) are fixedly connected between the upper sides of the base (9), and a plurality of bull's eye bearings (2) are installed on the upper sides of the two crossbeams (3). The tops of the plurality of bull's eye bearings (2) support a vacuum platform (1). The left and right sides of the lower part of the vacuum platform (1) are fixedly connected to a first connecting plate (4), and the bottom of the first connecting plate (4) is fixedly connected to a linear slider (5). The left side of the lower part of the vacuum platform (1) is fixedly connected to a fixed plate (10), and the left side of the fixed plate (10) is fixedly connected to a pull plate (11). Two rotating mechanisms (16) and a translation mechanism (15) are installed on the lower side of the vacuum platform (1); The rotating mechanism (16) includes a motor (8), which is installed on the upper rear part of the base (9) through a motor fixing plate (7). The output end of the motor (8) is fixedly connected to a locking sleeve (18), and an eccentric driving sleeve (14) is installed on the outside of the locking sleeve (18). The outer side of the eccentric driving sleeve (14) is provided with a bearing (19). The upper side of the bearing (19) is fixedly connected to a driving seat (17), and the top of the driving seat (17) is fixedly connected to a linear guide rail (6). The eccentric driving sleeve (14) and the locking sleeve (18) become one body and are directly key-connected and fixed to the motor (8).

2. The automatic adjustment platform for a plate mounter according to claim 1, characterized in that: The translation mechanism (15) includes a motor (8), and the motor (8) is fixedly connected to the upper front part of the base (9) through a motor fixing plate (7). The output end of the motor (8) is fixedly connected to a locking sleeve (18), and an eccentric driving sleeve (14) is installed on the outside of the locking sleeve (18). The outer side of the eccentric driving sleeve (14) is provided with a bearing (19), and the upper side of the bearing (19) is fixedly connected to a driving seat (17), and the top of the driving seat (17) is fixedly connected to an angle plate (13), and the front side of the angle plate (13) is fixedly connected to a second connecting plate (12), and the end of the second connecting plate (12) away from the angle plate (13) is fixedly connected to the left side of the pulling plate (11).

3. The automatic adjustment platform of a plate mounter according to claim 2, characterized in that: The outer side of the linear guide rail (6) is slidably connected to the inside of the linear slider (5), and the pull plate (11) is an elastic connecting plate, which ensures that the vacuum platform (1) can rotate when the rotating mechanism (16) rotates.

4. The automatic adjustment platform of a plate mounter according to claim 2, characterized in that: The two linear guide rails (6) are arranged in parallel.

5. The automatic adjustment platform of a plate mounter according to claim 2, characterized in that: The front of the vacuum platform (1) is provided with small holes that penetrate vertically and are evenly arranged, and the small holes are used for vacuum extraction.

6. The automatic adjustment platform of a plate mounter according to claim 2, characterized in that: The bull's eye bearing (2) is arranged on the upper side of the crossbeam (3), and the bull's eye bearing (2) is used to support and calibrate the vacuum platform (1).

7. The automatic adjustment platform of a plate mounter according to claim 2, characterized in that: The motor (8) in the rotating mechanism (16) is used to drive the rotation of the eccentric drive sleeve (14), the linear guide rail (6) and the linear slide block (5), and to drive the rotation of the vacuum platform (1).

8. The automatic adjustment platform of a plate mounter according to claim 2, characterized in that: The bottom of the vacuum platform (1) is provided with vertical and horizontal supports.

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