Printing roller polishing device and printing roller machining method

Abstract

The invention relates to the technical field of plate roller polishing equipment, in particular to a plate roller polishing device and a plate roller machining method.The plate roller polishing device comprises a machine tool, two fixing bases are arranged at the left end and the right end of the top of the machine tool, and a plate roller to be polished and ground is rotationally installed between the two fixing bases in the horizontal direction; the polishing assembly is located on one side of the plate roller, the polishing assembly is used for polishing and grinding the plate roller, the polishing assembly comprises a first polishing wheel and a second polishing wheel, and the first polishing wheel and the second polishing wheel are distributed on one side of the plate roller in an up-down spaced mode. The first polishing wheel and the second polishing wheel alternately polish and grind the printing roller, and a driving assembly is additionally arranged between the first polishing wheel and the second polishing wheel and used for driving the first polishing wheel and the second polishing wheel to rotate in the vertical direction. The purpose of the invention is to effectively guarantee the daily processing and production of the plate roller.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plate roller polishing equipment, in particular to a plate roller polishing device and a plate roller processing method. BACKGROUND

[0002] Plate roller polishing is a process of fine processing the surface of a printing plate roller, aiming to improve the smoothness, concentricity and dynamic balance performance of the roller surface to meet the requirements of precision and durability of the printing process. The polished plate roller surface is smooth and flawless, which can ensure the quality and consistency of the printed matter.

[0003] In related technologies, the plate roller is polished from coarse grinding to fine grinding. During specific processing, a grinding wheel is used to preliminarily grind the surface of the plate roller, and the commonly used grinding wheel grits range from coarse to fine. The current conventional method is to use two polishing wheels with different coarseness to polish the plate roller to different degrees. When the polishing wheel needs to be replaced, the machine needs to be stopped first, and then the corresponding polishing wheel needs to be assembled. However, since the entire assembly process of the polishing wheel is relatively complicated, it will affect the efficiency of the entire polishing of the plate roller, which is not conducive to the daily processing and production of the plate roller. At the same time, repeatedly assembling and disassembling the polishing wheel also wastes a lot of manpower and resources. SUMMARY

[0004] The present application provides a plate roller polishing device and a plate roller processing method, which aims to optimize the plate roller polishing process, thereby improving the efficiency of daily polishing processing of the plate roller, and thereby effectively ensuring the daily processing and production of the plate roller.

[0005] The present application provides a plate roller polishing device and a plate roller processing method, which adopts the following technical solution: A plate roller polishing device, comprising a machine tool, two fixed seats are arranged at the top left and right ends of the machine tool, a plate roller to be polished and ground is installed in a horizontal direction between the two fixed seats, a polishing assembly is additionally arranged on the top of the machine tool, the polishing assembly is located on one side of the plate roller, the polishing assembly is used for polishing and grinding the plate roller, the polishing assembly comprises a first polishing wheel and a second polishing wheel, the first polishing wheel and the second polishing wheel are arranged in an upper and lower spaced manner on one side of the plate roller, the first polishing wheel and the second polishing wheel alternately polish and grind the plate roller, a driving assembly is additionally arranged between the first polishing wheel and the second polishing wheel, and the driving assembly is used for driving the first polishing wheel and the second polishing wheel to rotate in a vertical direction.

[0006] By using the above technical solution, the first polishing wheel and the second polishing wheel alternately polish and grind the plate roller, which can effectively optimize the plate roller polishing process, thereby improving the efficiency of daily polishing processing of the plate roller, and thereby effectively ensuring the daily processing and production of the plate roller.

[0007] Preferably, the driving assembly comprises a driving motor, a first driving gear, a second driving gear, a first gear ring and a second gear ring, a support seat is installed on the upper portion of the machine tool in the vertical direction, the first driving motor is fastened to the support seat, a support cylinder is installed on the side of the support seat away from the driving motor, the support cylinder is hollow inside and a support plate is installed inside the support cylinder, the support plate is penetrated by rotating shafts in the horizontal direction, the end portions of the rotating shafts are connected with the driving end of the driving motor, the first driving gear and the second driving gear are respectively sleeved on the left and right sides of the rotating shafts, the first gear ring and the second gear ring are spaced apart and distributed on the left and right sides of the support cylinder, the first gear ring is connected with the first polishing wheel and the first gear ring is sleeved on the side of the first driving gear, the second gear ring is connected with the second polishing wheel and the second gear ring is sleeved on the side of the second driving gear.

[0008] By adopting the above technical scheme, when the first polishing wheel roughens the plate roller below, the first gear ring and the first driving gear are in a disconnected state, at this time, the first gear ring and the first driving gear are not engaged. When the second polishing wheel is above the first polishing wheel, the second gear ring and the second driving gear are in an engaged state.

[0009] When the plate roller roughening is completed and the next step of fine polishing is needed, the driving motor drives the rotating shaft to rotate, and the rotating shaft drives the first driving gear and the second driving gear to rotate in the rotating process. In this state, since the first driving gear and the first gear ring are in a disconnected state, the first driving gear and the first gear ring do not act on each other, and the first driving gear is in an idle state. The second driving gear and the second gear ring are engaged, so that the second gear ring rotates counterclockwise under the driving of the second driving gear. The second gear ring drives the corresponding second polishing wheel to rotate counterclockwise synchronously in the rotating process.

[0010] With the counterclockwise rotation of the second polishing wheel, the second polishing wheel gradually approaches the first polishing wheel in the direction, when the second polishing wheel rotates to the first polishing wheel and abuts against the first polishing wheel, the second gear ring and the second driving gear are no longer engaged, that is, the second gear ring no longer rotates, and the second polishing wheel no longer rotates.

[0011] When the second polishing wheel abuts against the first polishing wheel, the second polishing wheel will apply a force to the first polishing wheel, which will push the first polishing wheel to slightly rotate in the counterclockwise direction. With the rotation of the first polishing wheel, the first polishing wheel will drive the first gear ring to rotate synchronously, and with the rotation of the first gear ring, the teeth on the first gear ring will engage the first drive gear. Thereafter, with the rotation of the driving shaft driving the first drive gear to rotate, and the first drive gear continuing to drive the first gear ring and the first polishing wheel to rotate in the counterclockwise direction, until the first polishing wheel rotates above the second polishing wheel, and then the driving motor is turned off, in this state, the first gear ring and the first drive gear are in engagement state, so as to rotate in the next cycle.

[0012] That is, in the initial state, the rotation of the second polishing wheel is realized by driving the second gear ring to rotate through the second drive gear. Before the second polishing wheel abuts against the first polishing wheel, only the second gear ring and the second drive gear are engaged, and the first gear ring and the first drive gear are not engaged. When the second polishing wheel abuts against the first polishing wheel, the second polishing wheel will apply a rotating force to the first polishing wheel, and the first polishing wheel will slightly rotate in the counterclockwise direction under the pushing of the second polishing wheel, and then the slight rotation of the first polishing wheel will drive the first gear ring to rotate, and with the rotation of the first gear ring, the teeth on the first gear ring will engage the first drive gear.

[0013] With this arrangement, the first polishing wheel can only rotate when the second polishing wheel rotates to the position of the first polishing wheel and abuts against the first polishing wheel. This is done to ensure that the alternating polishing between the first polishing wheel and the second polishing wheel is without interval, and they can seamlessly connect with each other.

[0014] Preferably, the first gear ring and the second gear ring are both provided with half smooth and half toothed.

[0015] By adopting the above technical solution, the engagement and disengagement between the first gear ring, the second gear ring, and the corresponding first drive gear and second drive gear are realized.

[0016] Preferably, the first polishing wheel and the second polishing wheel are both provided with a corresponding auxiliary motor on the side away from the plate roller.

[0017] By adopting the above technical solution, when the first polishing wheel and the second polishing wheel need to rotate, the auxiliary motor is used to drive the corresponding first polishing wheel or second polishing wheel to rotate.

[0018] Preferably, the first gear ring or the second gear ring and the corresponding auxiliary motor are connected through a transfer plate.

[0019] By adopting the above technical solution, the first gear ring or the second gear ring is connected to the corresponding auxiliary motor using an adapter plate, and then the corresponding first gear ring is connected to the first polishing wheel, the second gear ring and the second polishing wheel through the adapter plate and the auxiliary motor.

[0020] Preferably, the adapter plate has limiting grooves at both the left and right ends, and the first gear ring and the second gear ring are engaged in the limiting grooves at both the left and right ends of the upper and lower adapter plates.

[0021] By adopting the above technical solution, the first gear ring and the second gear ring are limited by the limiting groove, thereby effectively ensuring the stability of the first gear ring and the second gear ring during rotation.

[0022] Preferably, the top of the machine tool is fixedly mounted with a slide rail in the horizontal direction, and a slide block is slidably mounted on the slide rail in the horizontal direction, with the support base integrally formed on the top of the slide block.

[0023] By adopting the above technical solution, the slide block drives the support block to slide during the sliding process, and then the support block drives the first polishing wheel and the second polishing wheel to slide in the horizontal direction, which facilitates the adjustment of the position of the first polishing wheel and the second polishing wheel.

[0024] A printing roller processing method, employing a printing roller polishing apparatus according to any one of claims 1-7, includes the following steps: S1. Select a suitable seamless steel pipe according to the requirements of the printing press drawings; S2. Cut the steel pipe, weld the flange, chamfer and grind it; S3. A base copper layer with a thickness of approximately 600 micrometers is plated on the substrate surface to ensure the accuracy of the printing roller; S4. Plate another copper layer for engraving on the base copper layer, with a thickness of about 80 micrometers; S5. Plate a layer of chromium onto the engraved copper surface; S6. After chrome plating, the surface is coarsely polished and finely polished by the first polishing wheel and the second polishing wheel in sequence to ensure a smooth surface. S7. The diameter, parallelism, and chrome plating thickness of the printing roller are tested using professional instruments. After passing the test, the printing roller is treated with rust prevention and packaged to avoid damage during transportation.

[0025] By adopting the above technical solution, the printing roller is polished and ground alternately by the first polishing wheel and the second polishing wheel, which can effectively optimize the printing roller polishing process, thereby improving the efficiency of daily printing roller polishing and ensuring the daily processing and production of printing roller.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. Using the first and second polishing wheels alternately to polish and grind the printing roller can effectively optimize the polishing process of the printing roller, thereby improving the efficiency of daily polishing of the printing roller and thus effectively ensuring the daily processing and production of the printing roller; 2. In the initial state, the rotation of the second polishing wheel is achieved by the second drive gear driving the second gear ring to rotate. Before the second polishing wheel comes into contact with the first polishing wheel, only the second gear ring and the second drive gear are engaged, while the first gear ring and the first drive gear are not engaged. When the second polishing wheel comes into contact with the first polishing wheel, the second polishing wheel applies a rotational force to the first polishing wheel. Under the push of the second polishing wheel, the first polishing wheel rotates slightly counterclockwise, which in turn drives the first gear ring to rotate. As the first gear ring rotates, the teeth on the first gear ring engage with the first drive gear.

[0027] In this configuration, the first polishing wheel can only rotate after the second polishing wheel has rotated to the position of the first polishing wheel and come into contact with it. This is to ensure that the alternating polishing action between the first and second polishing wheels is seamless and without interruption. 3. During the sliding process, the slide block drives the support block to slide, which in turn drives the first polishing wheel and the second polishing wheel to slide in the horizontal direction through the support block, thereby facilitating the adjustment of the positions of the first polishing wheel and the second polishing wheel. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram illustrating the positional relationship of the first polishing wheel, the second polishing wheel, the drive motor, the first gear ring, the second gear ring, and the auxiliary motor in this embodiment of the application. Figure 3 This is a structural schematic diagram illustrating the positional relationship between the first drive gear, the second drive gear, the support plate, the rotating shaft, and the limiting groove in a specific embodiment of this application.

[0029] Reference numerals in the attached drawings: 1. Machine tool; 2. Fixed base; 3. Printing roller; 4. First polishing wheel; 5. Second polishing wheel; 6. Drive motor; 7. First drive gear; 8. Second drive gear; 9. First gear ring; 10. Second gear ring; 11. Support base; 12. Support cylinder; 13. Support plate; 14. Rotating shaft; 15. Auxiliary motor; 16. Adapter plate; 17. Limiting groove; 18. Slide rail; 19. Slide seat. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3This application will be described in further detail below.

[0031] Example: This application discloses a printing roller polishing device, referring to... Figure 1 and Figure 2 The system includes a machine tool 1, with two fixed seats 2 at the top left and right ends of the machine tool 1. Both fixed seats 2 are fastened to the top of the machine tool 1 by corresponding fastening bolts. The printing roller 3 to be polished is installed between the two fixed seats 2 in a horizontal direction. At the same time, a polishing component is also added to the top of the machine tool 1. The polishing component is located on one side of the printing roller 3 and is used to polish the printing roller 3.

[0032] Specifically, refer to Figure 1 and Figure 2 The polishing assembly includes a first polishing wheel 4 and a second polishing wheel 5, which are spaced vertically apart on one side of the printing roller 3. For ease of understanding, this embodiment uses the example of the first polishing wheel 4 at the bottom and the second polishing wheel 5 at the top. The surface of the first polishing wheel 4 has coarse abrasive grains, which are used to perform preliminary grinding on the printing roller 3 to remove larger scratches. The surface of the second polishing wheel 5 has fine abrasive grains, which are used to perform fine polishing on the printing roller 3 to achieve a mirror finish.

[0033] Meanwhile, a drive assembly is provided between the first polishing wheel 4 and the second polishing wheel 5. The drive assembly is used to drive the first polishing wheel 4 and the second polishing wheel 5 to rotate in the vertical direction. The first polishing wheel 4 and the second polishing wheel 5 exchange positions during the rotation, thereby realizing the polishing process of the printing roller 3 from coarse grinding to fine grinding.

[0034] By using the first polishing wheel 4 and the second polishing wheel 5 to polish and grind the printing roller 3 alternately, the polishing process of the printing roller 3 can be effectively optimized, thereby improving the efficiency of daily polishing of the printing roller 3 and effectively ensuring the daily processing and production of the printing roller 3.

[0035] Specifically, refer to Figure 1 , Figure 2 as well as Figure 3The drive assembly includes a drive motor 6, a first drive gear 7, a second drive gear 8, a first gear ring 9, and a second gear ring 10. A support base 11 is vertically mounted above the machine tool 1, and the first drive motor 6 is fastened to the support base 11 by fastening bolts. A support cylinder 12 is mounted on the side of the support base 11 away from the drive motor 6. The support cylinder 12 is hollow and contains a support plate 13. A rotating shaft 14 is horizontally inserted near the top of the support plate 13. The end of the rotating shaft 14 is connected to the drive end of the drive motor 6, and the first drive gear 7 and the second drive gear 8 are respectively fitted onto the left and right sides of the rotating shaft 14. The first gear ring 9 and the second gear ring 10 are spaced apart on the left and right sides of the support cylinder 12. The first gear ring 9 is connected to the first polishing wheel 4 and is fitted around the first drive gear 7. The second gear ring 10 is connected to the second polishing wheel 5 and is fitted around the second drive gear 8.

[0036] When the first polishing wheel 4 is below the printing roller 3 for rough polishing, the first gear ring 9 and the first drive gear 7 are in a disengaged state, and at this time, the first gear ring 9 and the first drive gear 7 are not meshed. When the second polishing wheel 5 is above the first polishing wheel 4, the second gear ring 10 and the second drive gear 8 are in a meshed state.

[0037] When the coarse grinding of the printing roller 3 is completed and the next step of fine grinding is required, the drive motor 6 drives the rotating shaft 14 to rotate. During the rotation of the rotating shaft 14, the first drive gear 7 and the second drive gear 8 rotate. In this state, since the first drive gear 7 and the first gear ring 9 are in a disengaged state, no interaction occurs between them, and the first drive gear 7 is in an idle state. The second drive gear 8 meshes with the second gear ring 10, so the second gear ring 10 rotates counterclockwise under the drive of the second drive gear 8. During the rotation of the second gear ring 10, the corresponding second polishing wheel 5 is simultaneously driven to rotate counterclockwise.

[0038] As the second polishing wheel 5 rotates counterclockwise, it gradually approaches the first polishing wheel 4. When the second polishing wheel 5 rotates to the position of the first polishing wheel 4 and comes into contact with it, the second gear ring 10 and the second drive gear 8 no longer mesh, that is, the second gear ring 10 no longer rotates, and the second polishing wheel 5 also no longer rotates.

[0039] When the second polishing wheel 5 comes into contact with the first polishing wheel 4, the second polishing wheel 5 applies a force to the first polishing wheel 4, which pushes the first polishing wheel 4 to rotate slightly counterclockwise. As the first polishing wheel 4 rotates, it synchronously drives the first gear ring 9 to rotate. With the rotation of the first gear ring 9, the teeth on the first gear ring 9 mesh with the first drive gear 7. Subsequently, the rotation of the rotating shaft 14 drives the first drive gear 7 to rotate, and through the first drive gear 7, it continues to drive the first gear ring 9 and the first polishing wheel 4 to rotate counterclockwise until the first polishing wheel 4 rotates above the second polishing wheel 5. Then, the drive motor 6 is turned off. In this state, the first gear ring 9 and the first drive gear 7 remain engaged for the next cycle.

[0040] In the initial state, the rotation of the second polishing wheel 5 is achieved by the second drive gear 8 driving the second gear ring 10 to rotate. Before the second polishing wheel 5 comes into contact with the first polishing wheel 4, only the second gear ring 10 and the second drive gear 8 are engaged; the first gear ring 9 and the first drive gear 7 are not engaged. When the second polishing wheel 5 comes into contact with the first polishing wheel 4, the second polishing wheel 5 applies a rotational force to the first polishing wheel 4. Under the push of the second polishing wheel 5, the first polishing wheel 4 rotates slightly counterclockwise. This slight rotation of the first polishing wheel 4 then drives the first gear ring 9 to rotate. As the first gear ring 9 rotates, the teeth on the first gear ring 9 engage with the first drive gear 7.

[0041] In this configuration, the first polishing wheel 4 can only rotate after the second polishing wheel 5 has rotated to the position of the first polishing wheel 4 and comes into contact with it. This is to ensure that the alternating polishing between the first polishing wheel 4 and the second polishing wheel 5 is seamless and without gaps.

[0042] Compared to traditional polishing devices, where the printing roller 3 cannot continue polishing when the polishing wheel is cleaning, in this embodiment, when the first polishing wheel 4 polishes the printing roller 3, the second polishing wheel 5 located above it can perform corresponding cleaning. This ensures that the second polishing wheel 5 does not affect the polishing process of the printing roller 3 during cleaning, thereby improving the overall polishing efficiency of the printing roller 3.

[0043] In this embodiment, refer to Figure 3 The first gear ring 9 and the second gear ring 10 are both half smooth and the other half toothed, thereby realizing the meshing and disengagement between the first gear ring 9, the second gear ring 10 and the corresponding first drive gear 7 and second drive gear 8.

[0044] Reference Figure 1 , Figure 2 as well as Figure 3Each of the first polishing wheel 4 and the second polishing wheel 5 is equipped with a corresponding auxiliary motor 15 on the side away from the printing roller 3. When the first polishing wheel 4 and the second polishing wheel 5 need to rotate, the auxiliary motor 15 is used to drive the corresponding first polishing wheel 4 or the second polishing wheel 5 to rotate.

[0045] Specifically, refer to Figure 1 , Figure 2 as well as Figure 3 The first gear ring 9 or the second gear ring 10 and the corresponding auxiliary motor 15 are connected by an adapter plate 16. The adapter plate 16 is used to connect the first gear ring 9 or the second gear ring 10 and the corresponding auxiliary motor 15. Then, the adapter plate 16 and the auxiliary motor 15 are used to connect the corresponding first gear ring 9 with the first polishing wheel 4, the second gear ring 10 and the second polishing wheel 5.

[0046] Furthermore, referring to Figure 2 and Figure 3 Limiting grooves 17 are provided at both ends of the adapter plate 16. The first gear ring 9 and the second gear ring 10 are both engaged in the limiting grooves 17 at both ends of the upper and lower adapter plates 16. The limiting grooves 17 are used to limit the first gear ring 9 and the second gear ring 10, thereby effectively ensuring the stability of the first gear ring 9 and the second gear ring 10 during rotation.

[0047] Furthermore, referring to Figure 1 and Figure 2 The top of the machine tool 1 is secured to the slide rail 18 by fastening bolts in the horizontal direction. A slide seat 19 is slidably mounted on the slide rail 18 in the horizontal direction. A support seat 11 is integrally formed on the top of the slide seat 19. During the sliding process, the slide seat 19 drives the support seat 11 to slide, and then the support seat 11 drives the first polishing wheel 4 and the second polishing wheel 5 to slide in the horizontal direction, which facilitates the adjustment of the position of the first polishing wheel 4 and the second polishing wheel 5.

[0048] A method for processing a printing roller 3 includes the following steps: S1. Select a suitable seamless steel pipe according to the requirements of the printing press drawings; S2. Cut the steel pipe, weld the flange, chamfer and grind it; S3. A layer of base copper is plated on the substrate surface, with a thickness of approximately 600 micrometers, to ensure the accuracy of the printing roller 3; S4. Plate another copper layer for engraving on the base copper layer, with a thickness of about 80 micrometers; S5. Plate a layer of chromium onto the engraved copper surface; S6. After chrome plating, the surface is coarsely polished and finely polished successively by the first polishing wheel 4 and the second polishing wheel 5 to ensure a smooth surface. S7. The diameter, parallelism, and chrome plating thickness of the printing roller 3 are tested using professional instruments. After passing the test, the printing roller 3 is treated with rust prevention and packaged to avoid damage during transportation.

[0049] The implementation principle of the printing roller polishing device and printing roller 3 processing method in this application embodiment is as follows: When the first polishing wheel 4 is below the printing roller 3 for rough polishing, the first gear ring 9 and the first drive gear 7 are in a disengaged state, and at this time, the first gear ring 9 and the first drive gear 7 are not meshed. When the second polishing wheel 5 is above the first polishing wheel 4, the second gear ring 10 and the second drive gear 8 are in a meshed state.

[0050] When the coarse grinding of the printing roller 3 is completed and the next step of fine grinding is required, the drive motor 6 drives the rotating shaft 14 to rotate. During the rotation of the rotating shaft 14, the first drive gear 7 and the second drive gear 8 rotate. In this state, since the first drive gear 7 and the first gear ring 9 are in a disengaged state, no interaction occurs between them, and the first drive gear 7 is in an idle state. The second drive gear 8 meshes with the second gear ring 10, so the second gear ring 10 rotates counterclockwise under the drive of the second drive gear 8. During the rotation of the second gear ring 10, the corresponding second polishing wheel 5 is simultaneously driven to rotate counterclockwise.

[0051] As the second polishing wheel 5 rotates counterclockwise, it gradually approaches the first polishing wheel 4. When the second polishing wheel 5 rotates to the position of the first polishing wheel 4 and comes into contact with it, the second gear ring 10 and the second drive gear 8 no longer mesh, that is, the second gear ring 10 no longer rotates, and the second polishing wheel 5 also no longer rotates.

[0052] When the second polishing wheel 5 comes into contact with the first polishing wheel 4, the second polishing wheel 5 applies a force to the first polishing wheel 4, which pushes the first polishing wheel 4 to rotate slightly counterclockwise. As the first polishing wheel 4 rotates, it synchronously drives the first gear ring 9 to rotate. With the rotation of the first gear ring 9, the teeth on the first gear ring 9 mesh with the first drive gear 7. Subsequently, the rotation of the rotating shaft 14 drives the first drive gear 7 to rotate, and through the first drive gear 7, it continues to drive the first gear ring 9 and the first polishing wheel 4 to rotate counterclockwise until the first polishing wheel 4 rotates above the second polishing wheel 5. Then, the drive motor 6 is turned off. In this state, the first gear ring 9 and the first drive gear 7 remain engaged for the next cycle.

[0053] In the initial state, the rotation of the second polishing wheel 5 is achieved by the second drive gear 8 driving the second gear ring 10 to rotate. Before the second polishing wheel 5 comes into contact with the first polishing wheel 4, only the second gear ring 10 and the second drive gear 8 are engaged; the first gear ring 9 and the first drive gear 7 are not engaged. When the second polishing wheel 5 comes into contact with the first polishing wheel 4, the second polishing wheel 5 applies a rotational force to the first polishing wheel 4. Under the push of the second polishing wheel 5, the first polishing wheel 4 rotates slightly counterclockwise. This slight rotation of the first polishing wheel 4 then drives the first gear ring 9 to rotate. As the first gear ring 9 rotates, the teeth on the first gear ring 9 engage with the first drive gear 7.

[0054] In this configuration, the first polishing wheel 4 can only rotate after the second polishing wheel 5 has rotated to the position of the first polishing wheel 4 and comes into contact with it. This is to ensure that the alternating polishing between the first polishing wheel 4 and the second polishing wheel 5 is seamless and without gaps.

[0055] Compared to traditional polishing devices, where the printing roller 3 cannot continue polishing when the polishing wheel is cleaning, in this embodiment, when the first polishing wheel 4 polishes the printing roller 3, the second polishing wheel 5 located above it can perform corresponding cleaning. This ensures that the second polishing wheel 5 does not affect the polishing process of the printing roller 3 during cleaning, thereby improving the overall polishing efficiency of the printing roller 3.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A printing roller polishing device, characterized in that: The machine tool (1) is provided with two fixed seats (2) at the top left and right ends. The printing roller (3) to be polished is installed between the two fixed seats (2) in a horizontal direction. The top of the machine tool (1) is also provided with a polishing component. The polishing component is located on one side of the printing roller (3). The polishing component is used to polish the printing roller (3). The polishing component includes a first polishing wheel (4) and a second polishing wheel (5). The first polishing wheel (4) and the second polishing wheel (5) are distributed vertically on one side of the printing roller (3). The first polishing wheel (4) and the second polishing wheel (5) polish the printing roller (3) alternately. A driving component is provided between the first polishing wheel (4) and the second polishing wheel (5). The driving component is used to drive the first polishing wheel (4) and the second polishing wheel (5) to rotate in the vertical direction.

2. The printing roller polishing device according to claim 1, characterized in that: The drive assembly includes a drive motor (6), a first drive gear (7), a second drive gear (8), a first gear ring (9), and a second gear ring (10). A support base (11) is mounted vertically above the machine tool (1). The first drive motor (6) is fastened to the support base (11). A support cylinder (12) is mounted on the side of the support base (11) away from the drive motor (6). The support cylinder (12) is hollow inside and a support plate (13) is installed inside it. A rotating shaft (14) is inserted horizontally through the support plate (13). The end of the rotating shaft (14) The first drive gear (7) and the second drive gear (8) are respectively sleeved on the left and right sides of the rotating shaft (14). The first gear ring (9) and the second gear ring (10) are distributed at intervals on the left and right sides of the support cylinder (12). The first gear ring (9) is connected to the first polishing wheel (4) and is sleeved on the periphery of the first drive gear (7). The second gear ring (10) is connected to the second polishing wheel (5) and is sleeved on the periphery of the second drive gear (8).

3. The printing roller polishing device according to claim 2, characterized in that: Both the first toothed ring (9) and the second toothed ring (10) are designed with one half smooth and the other half toothed.

4. The printing roller polishing device according to claim 3, characterized in that: Both the first polishing wheel (4) and the second polishing wheel (5) are equipped with corresponding auxiliary motors (15) on the side away from the printing roller (3).

5. The printing roller polishing device according to claim 4, characterized in that: The first gear ring (9) or the second gear ring (10) and the corresponding auxiliary motor (15) are connected by an adapter plate (16).

6. The printing roller polishing device according to claim 5, characterized in that: Limiting grooves (17) are provided at both the left and right ends of the adapter plate (16), and the first gear ring (9) and the second gear ring (10) are both engaged in the limiting grooves (17) at both the left and right ends of the upper and lower adapter plates (16).

7. A printing roller polishing device according to claim 6, characterized in that: The top of the machine tool (1) is fixedly fitted with a slide rail (18) in the horizontal direction, and a slide block (19) is slidably disposed on the slide rail (18) in the horizontal direction. The support base (11) is integrally formed on the top of the slide block (19).

8. A method for processing printing rollers, characterized in that: The polishing apparatus for a printing roller (3) according to any one of claims 1-7 includes the following steps: S1. Select a suitable seamless steel pipe according to the requirements of the printing press drawings; S2. Cut the steel pipe, weld the flange, chamfer and grind it; S3. A layer of base copper with a thickness of about 600 micrometers is plated on the substrate surface to ensure the accuracy of the printing roller (3); S4. Plate another copper layer for engraving on the base copper layer, with a thickness of about 80 micrometers; S5. Plate a layer of chromium onto the engraved copper surface; S6. After chrome plating, the surface is coarsely polished and finely polished by the first polishing wheel (4) and the second polishing wheel (5) in turn to ensure a smooth surface. S7. The diameter, parallelism and chrome plating thickness of the printing roller (3) are tested by professional instruments. After the test is qualified, the printing roller (3) is rust-proofed and packaged to avoid damage during transportation.

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