A profiling and grinding device for a printing plate and a method of grinding
Patent Information
- Application Number
- CN202610908539.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-23
- Publication Date
- 2026-09-11
AI Technical Summary
[0004]在版辊制造的上游工序即镀铬工序完成后，版辊表面常随机分布有肉眼难以清晰辨识的微小镀铬瘤或硬质点，这些硬质点与版辊基体的硬度差异显著，且形状尖锐不规则，操作工若是直接开启设备，剖光结构的接触轮或砂带在行进中撞击此类硬质点时，会产生瞬间弹跳和冲击振动，这种冲击一方面造成辊面出现周期性振纹，破坏版辊镜面的均匀性；另一方面极易挤碎砂带表面的磨粒，被挤碎的尖锐磨粒残留在接触区，随剖光结构继续运动而在周围已抛光好的高光区域划出深长划痕，导致整根版辊返工甚至报废
在未遇到铬瘤点时，清理辊仅依靠推动弹簧的作用压在清理辊上，清理辊随着版辊的转动而滚动，即清理辊由版辊的摩擦力带动转动，使得清理辊不会对版辊进行冲击，当铬瘤点到来时，铬瘤点锲入版辊和清理辊的滚动接触区，产生一个强大的阻力矩，瞬时别停清理辊的转动，使得清理辊和版辊之间变为强制相对滑动，即两者之间具有差速，让清理辊能够对铬瘤点进行微米级的切削，一旦铬瘤点被切除，阻碍旋转的力矩立刻消失，清理辊能够在版辊的转动下恢复被动转动状态；通过将清理结构与打磨结构共同设置于移动结构上，使得本设备在同一装夹工位下能够先以清理辊弹性抵接版辊表面清理铬瘤或硬质点，之后再次移动时能够通过打磨结构对版辊进行剖光打磨，两道工序无缝衔接。
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Figure CN122723398A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of stencil polishing, and in particular to a stencil polishing device and a polishing method for printing rollers. Background Technology
[0002] Printing roller polishing equipment is a specialized piece of equipment used for precision machining of the surface of printing rollers. It is mainly used in the printing plate-making industry and is an important part of the precision printing process such as map plate making and packaging printing. Its purpose is to make the surface of the printing roller achieve the accuracy and smoothness required for printing.
[0003] The related technology includes a polishing and grinding equipment, which includes a frame, a clamping and rotating structure and a moving structure. The clamping and rotating structure is used to clamp and rotate the printing roller, and the moving structure is equipped with a polishing structure. The polishing structure is used to polish and grind the printing roller by reciprocating the cutting edge along the axial direction of the rotating printing roller surface.
[0004] After the upstream process of printing roller manufacturing, namely the chrome plating process, the surface of the printing roller is often randomly distributed with tiny chrome plating nodules or hard spots that are difficult to distinguish with the naked eye. These hard spots have a significant difference in hardness from the printing roller substrate and are sharp and irregular in shape. If the operator directly turns on the equipment, the contact wheel of the polishing structure or the abrasive belt will hit these hard spots during the movement, which will produce instantaneous bouncing and impact vibration. This impact will cause periodic vibration marks on the roller surface, destroying the uniformity of the printing roller mirror surface. On the other hand, it will easily crush the abrasive grains on the surface of the abrasive belt. The crushed sharp abrasive grains remain in the contact area and, as the polishing structure continues to move, scratch deep and long scratches in the surrounding polished high-gloss area, causing the entire printing roller to be reworked or even scrapped. Summary of the Invention
[0005] In order to improve the quality of printing rollers when tiny chromium nodules or hard spots appear, this application provides a polishing and grinding device and a grinding method for printing rollers.
[0006] This application provides a polishing and grinding device and a grinding method for printing rollers, which adopts the following technical solution: A polishing and grinding device for printing rollers includes a frame with a clamping and rotating structure for holding and rotating the printing roller. The frame also has a movable structure with a cleaning structure and a grinding structure. The grinding structure is used to polish and grind the printing roller. The cleaning structure includes a cleaning roller and a cleaning seat. The movable structure has a push spring, and the cleaning seat is mounted on the push spring. The cleaning roller is rotatably connected to the cleaning seat, and the push spring pushes the cleaning roller to abut against the surface of the printing roller. When the printing roller rotates, the cleaning roller is used to remove chrome nodules.
[0007] By adopting the above technical solution, when no chromium nodule is encountered, the cleaning roller is pressed against the printing roller only by the action of the push spring. The cleaning roller rolls with the rotation of the printing roller, that is, the cleaning roller is driven to rotate by the friction of the printing roller, so that the cleaning roller will not impact the printing roller. When the chromium nodule arrives, the chromium nodule wedges into the rolling contact area of the printing roller and the cleaning roller, generating a strong resistance torque, which instantly stops the rotation of the cleaning roller, so that the cleaning roller and the printing roller become forced relative sliding, that is, there is a speed difference between the two, allowing the cleaning roller to cut the chromium nodule at the micron level. Once the chromium nodule is removed, the torque that hinders the rotation immediately disappears, and the cleaning roller can resume the passive rotation state under the rotation of the printing roller. By setting the cleaning structure and the grinding structure together on the moving structure, this equipment can first use the cleaning roller to elastically abut against the surface of the printing roller to clean the chromium nodule or hard point in the same clamping position, and then use the grinding structure to polish the printing roller when moving again. The two processes are seamlessly connected.
[0008] Optionally, the movable structure is equipped with a camera for photographing the inspection roller, and the frame is equipped with a swing structure for driving the camera to swing in the direction of the cleaning structure or the polishing structure.
[0009] By adopting the above technical solution, a camera is added to the moving structure, and a swinging structure is set to drive the camera to switch its orientation between the cleaning structure and the grinding structure. This allows the same camera to face the cleaning area during the cleaning process to detect whether the chrome plating nodules have been removed, and to switch to face the grinding area during the grinding process to check the polishing quality. This enables the camera to inspect both processes.
[0010] Optionally, the movable structure is provided with a support bar, the support bar is provided with a support block, the camera is provided with a first support groove for the support block to be inserted, and the camera is provided with a second rotation groove for the support block to rotate. The first support groove is located on the side of the second rotation groove away from the ground. When the support block is inserted into the first support groove, the camera is used to face the cleaning structure or the grinding structure. When the support block is located in the second rotation groove, the camera can swing.
[0011] By adopting the above technical solution, a first support groove and a second rotation groove are opened on the camera component, and a support block on the support bar is used to enable the camera component to obtain two working states. When the support block is inserted into the first support groove, the camera component is rigidly supported and fixed, and can stably shoot at a fixed point towards the cleaning structure or grinding structure, ensuring the stability of the detection image. When the support block enters the second rotation groove, the camera component gains rotational freedom and can be pushed by external force to swing and switch. The first support groove is located on the side of the second rotation groove away from the ground, so that the camera component naturally sinks under the action of gravity in the normal working state, and the support block automatically falls into the first support groove to complete the positioning. After switching, it can return to the position and lock, realizing a purely mechanical automatic switching between positioning and rotation. The operation is smooth and requires no manual intervention.
[0012] Optionally, the swing structure includes a swing bar and a swing block. The swing bar is mounted on the frame, and the swing block is mounted on the side of the swing bar away from the ground. Both the swing bar and the swing block are located on the moving path of the camera. The swing bar has a swing inclined surface on the surface of the camera. The swing inclined surface is used to lift the camera, and the swing block is used to push the camera to swing.
[0013] By adopting the above technical solution, when the moving structure drives the camera to the swing bar, the camera first gradually rises along the swing ramp, so that the support block smoothly transitions from the first support groove to the second rotation groove, completing the unlocking; then the swing block contacts and pushes the camera, which has gained rotational freedom, so that it completes the swing change of orientation; this whole process is triggered by the reciprocating stroke of the moving structure itself, and with the help of the pure mechanical linkage of the ramp lifting and the push block moving, the camera can accurately turn from the directional shooting cleaning area to the shooting polishing area without an additional power source. The structure is compact and the operation is reliable.
[0014] Optionally, the support bar is provided with a support spring, which is disposed on the camera component and drives the camera component to move toward the support bar; when the support block is located in the first support groove, the camera component is fixed on the support bar.
[0015] By adopting the above technical solution, after the camera completes the swing switching, the support block automatically returns to its original position and inserts into the first support groove under the tension of the support spring, locking the camera back into a fixed posture and preventing it from shaking or deflecting under equipment vibration or moving inertia. This elastic locking structure ensures that the image of the camera is stable and clear throughout the grinding and inspection process, and locking and unlocking are also completed automatically by pure machinery without the need for additional operations such as tightening bolts.
[0016] Optionally, the camera is provided with an air blowing pipe for blowing air between the printing roller and the camera.
[0017] By adopting the above technical solution, an air blowing pipe is added to the camera component to continuously blow air between the printing roller and the camera component, which can form an air barrier. This blows away the metal shavings, dust and tiny droplets that may splash during the polishing process from the front of the lens, preventing the lens from becoming blurry due to dirt and ensuring the clarity of the captured image.
[0018] Optionally, the camera is located between the cleaning structure and the polishing structure, and the camera is disposed on the side of the cleaning structure and the polishing structure closest to the ground.
[0019] By adopting the above technical solution, the camera is positioned between the cleaning structure and the grinding structure, and arranged close to the ground. This ensures that the camera has a balanced shooting distance and viewing angle in both orientations, avoiding blind spots caused by excessive offset. At the same time, by placing the camera below the working roller, the physical contours of the cleaning and grinding structures themselves can shield against falling debris, providing a certain degree of physical protection for the camera and reducing the risk of accidental collision damage.
[0020] A polishing method, S1: Install the printing roller; The operator installs the printing roller onto the clamping and rotating structure; S2: Remove chrome plating nodules or hard spots from the printing roller; the operator activates the clamping and rotating structure to rotate the printing roller, and the moving structure drives the cleaning structure to move along the axial direction of the printing roller to remove chrome plating nodules or hard spots; at the same time, the camera can take pictures of the printing roller to check whether there are still chrome plating nodules or hard spots. S3: Adjust the direction of the camera component; the moving structure drives the camera component to move in the direction of the swing bar, the camera component is lifted along the direction of the swing ramp, and the swing block pushes the camera component to rotate, so that the camera component can face the grinding structure; S4: Polishing and finishing roller; The operator moves the polishing structure along the axial direction of the roller by moving the moving structure, while the clamping and rotating structure continues to drive the roller to rotate, thus achieving polishing and finishing of the roller. S5: Remove the printing roller; the operator removes the printing roller from the clamping and rotating structure.
[0021] By adopting the above technical solution, the entire process does not require disassembling the printing roller or manually intervening in the inspection direction, eliminating the efficiency loss caused by process interruption, and avoiding the risk of missed detection of hard points by manual visual searching in the background technology. It realizes a seamless process from hard point removal to mirror polishing, significantly improving the automation level and yield of printing roller polishing.
[0022] In summary, this application includes at least one of the following beneficial technical effects: When no chromium nodules are encountered, the cleaning roller is pressed against the printing roller by the action of the push spring. The cleaning roller rolls with the rotation of the printing roller, meaning that the cleaning roller is driven to rotate by the friction of the printing roller, so that the cleaning roller will not impact the printing roller. When a chromium nodule is encountered, the chromium nodule wedges into the rolling contact area between the printing roller and the cleaning roller, generating a strong resistance torque that instantly stops the rotation of the cleaning roller, making the cleaning roller and the printing roller slide relative to each other. That is, there is a speed difference between the two, allowing the cleaning roller to cut the chromium nodule at the micron level. Once the chromium nodule is removed, the torque that hinders rotation immediately disappears, and the cleaning roller can resume its passive rotation state under the rotation of the printing roller. By setting the cleaning structure and the grinding structure together on the moving structure, this equipment can first use the cleaning roller to elastically abut against the surface of the printing roller to clean chromium nodules or hard points in the same clamping position, and then use the grinding structure to polish the printing roller when moving again. The two processes are seamlessly connected.
[0023] When the moving structure moves the camera to the swing bar, the camera first gradually rises along the swing ramp, allowing the support block to smoothly transition from the first support groove to the second rotation groove, thus unlocking the camera. Then, the swing block contacts and pushes the camera, which has gained rotational freedom, to complete the swing change of orientation. This entire process is triggered by the reciprocating stroke of the moving structure itself. With the help of the pure mechanical linkage of the ramp lifting and the push block movement, the camera can accurately turn from the directional shooting cleaning area to the shooting polishing area without an additional power source. The structure is compact and the operation is reliable. Attached Figure Description
[0024] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a schematic diagram highlighting the moving structure in the embodiments of this application; Figure 3 This is a schematic diagram highlighting the cleaning structure in the embodiments of this application; Figure 4 This is a schematic diagram highlighting the camera component in an embodiment of this application; Figure 5 This is a schematic diagram highlighting the first support groove in an embodiment of this application; Figure 6 yes Figure 1 An enlarged schematic diagram of part A in the middle.
[0025] Reference numerals: 1. Frame; 11. Clamping and rotating structure; 12. Grinding structure; 13. Swinging structure; 131. Swing bar; 132. Swing block; 133. Swinging inclined plane; 2. Moving structure; 21. Moving motor; 22. Moving lead screw; 23. Moving plate; 24. Support bar; 25. Support block; 26. Air blowing structure; 261. Air blowing pipe; 3. Cleaning structure; 31. Cleaning roller; 32. Cleaning seat; 33. Push spring; 34. Perforation; 35. Mounting rod; 4. Camera; 41. First support groove; 42. Second rotating groove; 43. Support spring. Detailed Implementation
[0026] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.
[0027] This embodiment discloses a polishing and grinding device for printing rollers and a grinding method. (Refer to...) Figure 1 A polishing and grinding device for printing rollers includes a frame 1, on which a clamping and rotating structure 11 is provided for clamping and rotating the printing roller. The clamping and rotating structure 11 is used to clamp the printing roller and can realize the rotation of the printing roller.
[0028] Reference Figure 2 The frame 1 is equipped with a movable structure 2, which includes a movable motor 21, a movable lead screw 22, and a movable plate 23. The movable motor 21 is fixedly connected to the frame 1, and the movable lead screw 22 is fixedly connected to the drive shaft of the movable motor 21. A guide rod is fixedly connected to the frame 1, and the movable plate 23 is slidably connected to the guide rod and threadedly connected to the movable lead screw 22. When the movable motor 21 is started, it drives the movable plate 23 to move horizontally along the axial direction of the printing roller via the movable lead screw 22.
[0029] Reference Figure 3 The movable plate 23 is equipped with a cleaning structure 3 and a polishing structure 12. The polishing structure 12 is used to perform polishing treatment on the printing roller. The cleaning structure 3 includes a cleaning roller 31 and a cleaning seat 32. A push spring 33 is fixedly connected to the surface of the movable plate 23, and the surface of the push spring 33 away from the movable plate 23 is fixedly connected to the cleaning seat 32. A through hole 34 is provided on the movable plate 23, and a mounting rod 35 is provided on the surface of the cleaning seat 32. The mounting rod 35 passes through the through hole 34 to allow the cleaning seat 32 to slide on the movable plate 23. The cleaning roller 31 is rotatably connected to the cleaning seat 32, and the push spring 33 drives the cleaning roller 31 to press against the outer surface of the printing roller.
[0030] Reference Figure 1 and Figure 3When the printing roller is mounted on the clamping and rotating structure 11, the clamping and rotating structure 11 drives the printing roller to rotate. As the moving structure 2 drives the cleaning roller 31 to move along the axial direction of the printing roller, the cleaning roller 31 is pressed against the printing roller only by the action of the push spring 33. The cleaning roller 31 rolls with the rotation of the printing roller. That is, the cleaning roller 31 is driven by the friction of the printing roller to rotate passively, so that the cleaning roller 31 will not impact the printing roller. When the chromium nodule arrives, the chromium nodule wedges into the rolling contact area between the printing roller and the cleaning roller 31, generating a strong resistance torque, which instantly stops the rotation of the cleaning roller 31, so that the cleaning roller 31 and the printing roller become forced relative sliding, that is, there is a speed difference between the two, allowing the cleaning roller 31 to cut the chromium nodule at the micron level. Once the chromium nodule is removed, the torque that hinders the rotation immediately disappears, and the cleaning roller 31 can resume the passive rotation state under the rotation of the printing roller.
[0031] Reference Figure 4 A support strip 24 is fixedly connected to the surface of the movable plate 23, and the support strip 24 extends toward the printing roller. A support block 25 is fixedly connected to the support strip 24, and the support block 25 and the support strip 24 are arranged perpendicular to each other, and the support block 25 is octagonal prism.
[0032] Reference Figure 4 The movable structure 2 is equipped with a camera 4, which is used to photograph the inspection roller. The camera 4 includes a camera housing and a camera, with the camera housed inside the camera housing. The camera 4 is located between the cleaning structure 3 and the grinding structure 12, and is positioned on the side of the cleaning structure 3 and the grinding structure 12 closest to the ground, so that the camera 4 can clearly photograph the roller.
[0033] Reference Figure 5 The surface of the camera housing is provided with a second rotating groove 42 for the support block 25 to be inserted. The bottom wall of the second rotating groove 42 is provided with a first support groove 41, that is, the first support groove 41 is located on the side of the second rotating groove 42 away from the ground.
[0034] Reference Figure 4 and Figure 5 The support block 25 can be inserted into the first support groove 41, thus fixing the camera 4 onto the movable plate 23. When the support block 25 is in the second rotating groove 42, the camera 4 can rotate, thus adjusting the direction of the camera 4. A support spring 43 is fixedly connected to the ground-facing surface of the camera 4. The support spring 43 is fixedly connected to the support bar 24 and is sleeved on the support block 25. The support spring 43 drives the camera 4 to move towards the ground, so that the support block 25 can be stably positioned in the first support groove 41.
[0035] Reference Figure 4An air blowing structure 26 is fixedly connected to the movable plate 23, and an air blowing pipe 261 is fixedly connected to the air blowing structure 26. The air blowing pipe 261 is disposed on the camera 4. The air blowing pipe 261 is used to blow air between the printing roller and the camera 4 so that the camera 4 can clearly capture the state of the printing roller.
[0036] Reference Figure 4 and Figure 6 The frame 1 is equipped with a swing structure 13, which is used to drive the camera 4 to swing toward the cleaning structure 3 or the polishing structure 12 so that the camera 4 can take pictures of the cleaning structure 3 or the polishing structure 12.
[0037] Reference Figure 4 and Figure 6 The swing structure 13 includes two swing bars 131 and two swing blocks 132. The two swing bars 131 are respectively disposed on different sides of the frame 1, and the camera 4 is located between the two swing bars. Each swing block 132 is disposed on a different swing bar 131.
[0038] Reference Figure 4 and Figure 6 A swing ramp 133 is formed on the surface of the swing bar 131 facing another swing bar 131. The distance between the swing ramp 133 and the other swing bar 131 gradually decreases in the vertically downward direction. The swing ramp 133 and the swing block 132 are both located on the moving path of the camera 4, and the support block 25 is located between the moving plate 23 and the swing bar 131.
[0039] Reference Figure 4 , Figure 5 and Figure 6 When the moving plate 23 moves the camera 4, the camera 4 can abut against the swing bar 131, causing the swing bar 131 to push the camera 4 to rise, allowing the support block 25 to move from the first support groove 41 to the second rotating groove 42. As the moving plate 23 continues to move, the swing block 132 pushes the camera 4 to continue swinging, allowing the camera 4 to swing from the cleaning structure 3 towards the grinding structure 12 or from the grinding structure 12 towards the cleaning structure 3. When the moving plate 23 moves the camera 4 in the opposite direction, the camera 4 falls due to its own weight and the force of the support spring 43, allowing the support block 25 to move from the second rotating groove 42 to the first support groove 41, thus fixing the camera 4 and enabling the camera 4 to stably photograph the printing roller.
[0040] A polishing method, S1: Install the printing roller; The operator installs the printing roller onto the clamping and rotating structure 11. S2: Remove chrome plating nodules or hard spots from the printing roller; the operator starts the clamping and rotating structure 11 to drive the printing roller to rotate, and the moving structure 2 drives the cleaning structure 3 to move along the axial direction of the printing roller to remove chrome plating nodules or hard spots; at the same time, the blowing structure 26 blows air onto the printing roller through the blowing pipe 261, and the camera 4 can take pictures of the printing roller to check whether there are still chrome plating nodules or hard spots. S3: Adjust the direction of the camera 4; the moving structure 2 drives the camera 4 to move in the direction of the swing bar 131, the camera 4 is lifted along the direction of the swing inclined plane 133, and the swing block 132 pushes the camera 4 to rotate, so that the camera 4 can face the grinding structure 12; S4: Polishing and finishing roller; The operator moves the polishing structure 12 along the axial direction of the roller by moving the moving structure 2, while the clamping and rotating structure 11 continues to drive the roller to rotate, so as to polish and finish the roller. S5: Remove the printing roller; the operator removes the printing roller from the clamping and rotating structure 11.
[0041] The implementation principle of the polishing and grinding equipment for printing rollers according to an embodiment of this application is as follows: When the moving plate 23 drives the camera 4 to move, the camera 4 can abut against the swing bar 131, allowing the swing bar 131 to push the camera 4 to rise, allowing the support block 25 to move from the first support groove 41 to the second rotating groove 42. As the moving plate 23 continues to move, the swing block 132 pushes the camera 4 to continue to swing, so that the camera 4 can swing from the cleaning structure 3 to the grinding structure 12 or from the grinding structure 12 to the cleaning structure 3. When the moving plate 23 drives the camera 4 to move in the opposite direction, the camera 4 falls due to its own weight and the force of the support spring 43, realizing the movement of the support block 25 from the second rotating groove 42 to the first support groove 41, realizing the fixation of the camera 4 by the support block 25, so that the camera 4 can stably photograph the printing roller.
[0042] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "an," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar terms mean that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0043] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this application should be included within the protection scope of this application.
Claims
1. A polishing and grinding device for printing rollers, comprising a frame (1), wherein the frame (1) is provided with a clamping and rotating structure (11) for clamping and rotating the printing roller, and a movable structure (2) is provided on the frame (1), characterized in that: The movable structure (2) is provided with a cleaning structure (3) and a polishing structure (12). The polishing structure (12) is used to polish the printing roller. The cleaning structure (3) includes a cleaning roller (31) and a cleaning seat (32). The movable structure (2) is provided with a push spring (33). The cleaning seat (32) is set on the push spring (33). The cleaning roller (31) is rotatably connected to the cleaning seat (32). The push spring (33) pushes the cleaning roller (31) to abut against the surface of the printing roller. When the printing roller rotates, the cleaning roller (31) is used to clean chrome nodules.
2. The polishing and grinding equipment for printing rollers according to claim 1, characterized in that: The movable structure (2) is equipped with a camera (4) for taking pictures of the inspection roller, and the frame (1) is equipped with a swing structure (13). The swing structure (13) is used to drive the camera (4) to swing in the direction of the cleaning structure (3) or the polishing structure (12).
3. The polishing and grinding equipment for printing rollers according to claim 2, characterized in that: The movable structure (2) is provided with a support bar (24), and the support bar (24) is provided with a support block (25). The camera (4) is provided with a first support groove (41) for the support block (25) to be inserted into, and a second rotation groove (42) for the support block (25) to rotate. The first support groove (41) is located on the side of the second rotation groove (42) away from the ground. When the support block (25) is inserted into the first support groove (41), the camera (4) is used to face the cleaning structure (3) or the polishing structure (12). When the support block (25) is located in the second rotation groove (42), the camera (4) can swing.
4. The polishing and grinding equipment for printing rollers according to claim 3, characterized in that: The swing structure (13) includes a swing bar (131) and a swing block (132). The swing bar (131) is mounted on the frame (1), and the swing block (132) is mounted on the side of the swing bar (131) away from the ground. Both the swing bar (131) and the swing block (132) are located on the moving path of the camera (4). The swing bar (131) has a swing inclined surface (133) on the surface of the camera (4). The swing inclined surface (133) is used to drive the camera (4) to lift, and the swing block (132) is used to push the camera (4) to swing.
5. The polishing and grinding equipment for printing rollers according to claim 4, characterized in that: The support bar (24) is provided with a support spring (43), which is located on the camera (4). The support spring (43) drives the camera (4) to move toward the support bar (24). When the support block (25) is located in the first support groove (41), the camera (4) is fixed on the support bar (24).
6. The polishing and grinding equipment for printing rollers according to claim 2, characterized in that: The camera (4) is provided with an air blowing pipe (261), which is used to blow air between the printing roller and the camera (4).
7. The polishing and grinding equipment for printing rollers according to claim 2, characterized in that: The camera (4) is located between the cleaning structure (3) and the polishing structure (12), and the camera (4) is disposed on the side of the cleaning structure (3) and the polishing structure (12) closer to the ground.
8. A polishing method, characterized in that: S1: Install the printing roller; The operator installs the printing roller onto the clamping and rotating structure (11); S2: Remove chromium plating nodules or hard spots from the printing roller; the operator starts the clamping and rotating structure (11) to drive the printing roller to rotate, and the moving structure (2) drives the cleaning structure (3) to move along the axial direction of the printing roller to remove chromium plating nodules or hard spots; at the same time, the camera (4) can take pictures of the printing roller to check whether there are still chromium plating nodules or hard spots. S3: Adjust the direction of the camera (4); the moving structure (2) drives the camera (4) to move in the direction of the swing bar (131), the camera (4) is lifted along the direction of the swing inclined plane (133), and the swing block (132) pushes the camera (4) to rotate, so that the camera (4) can face the grinding structure (12); S4: Polishing and finishing roller; The operator moves the polishing structure (12) along the axial direction of the roller by moving the moving structure (2), and the clamping and rotating structure (11) continues to drive the roller to rotate, so as to polish and finish the roller. S5: Remove the printing roller; the operator removes the printing roller from the clamping and rotating structure (11).