High-performance ultra-high-speed small printing plate roller

Abstract

The invention relates to the technical field of printing, in particular to a high-performance ultra-high-speed small printing plate roller which comprises a printing plate roller body, mounting bases are arranged at the two ends of the printing plate roller body, connecting rollers are rotationally connected into the mounting bases, the two mounting bases are connected through a connecting frame, and a heat dissipation assembly is arranged at the top of the connecting frame. The printing plate roller body is connected with the connecting roller through the connecting assembly. The printing plate roller has the beneficial effects that the heat dissipation assembly can dissipate heat, the printing plate roller body can be heated through the heating bin, the transfer performance of printing ink is improved, cooling liquid circulates in a closed system, the problem that external dirt enters the printing plate roller body is solved, cleaning work is reduced, and the working efficiency is improved. The stability of equipment is improved, the service life of the equipment is prolonged, meanwhile, sealing connection between the printing plate roller body and the connecting roller can be achieved through the connecting assembly, leakage of cooling liquid is effectively prevented, and normal work of the heat dissipation assembly is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of printing, and in particular to a high-performance ultra-high-speed small-sized printing plate roller. Background Art

[0002] The printing plate roller is a core component in the printing process, used to accurately transfer graphic information from the printing plate to the printing material. The printing plate roller can also be called a steel roller, which is divided into hollow rollers and solid rollers, shaft rollers and non-shaft rollers. It is generally used for plate making and is widely used in the printing industry. High-precision, ultra-high-speed, small-sized special printing plate rollers are one of them.

[0003] In the existing technology, ultra-high-speed and ultra-precision small printing plate rollers are all designed with heat dissipation structures. The heat dissipation is mainly to avoid poor precision when the printing plate rollers print on them. The heat dissipation structures of existing plate rollers are mainly divided into two types: through-hole heat dissipation and material heat dissipation. Regardless of the heat dissipation method, the heat must be discharged from the body on its own to achieve the heat dissipation effect. The heat dissipation efficiency of these two methods is low, especially for small plate rollers, which are difficult to dissipate heat extensively, which is not conducive to long-term printing operations. In addition, through-hole heat dissipation will cause external dirt to enter its interior, thereby adhering to the surface of the structure, causing blockage or erosion of the internal structure, requiring printing personnel to clean it regularly. Summary of the Invention

[0004] In response to the deficiencies in the prior art, the present invention provides a high-performance, ultra-high-speed small printing plate roller with higher heat dissipation efficiency, which is particularly suitable for small plate rollers. The heat dissipation component can not only dissipate heat, but also heat the printing plate roller body through the heating chamber to improve the ink transfer performance. The coolant circulates in the closed system, avoiding the problem of external dirt entering the interior of the printing plate roller body, reducing cleaning work, and improving the stability and service life of the equipment. At the same time, the connecting component can achieve a sealed connection between the printing plate roller body and the connecting roller, effectively preventing leakage of the coolant and ensuring the normal operation of the heat dissipation component. Through the cooperation of the threaded rod and the fixing groove, the printing plate roller body can be easily installed and disassembled, simplifying the operation process and improving work efficiency.

[0005] The following is a technical solution of the present invention: a high-performance, ultra-high-speed, small-sized printing plate roller, comprising: a printing plate roller body, mounting seats provided at both ends of the printing plate roller body, a connecting roller rotatably connected to the interior of the mounting seats, two sets of mounting seats connected by a connecting frame, a heat dissipation assembly provided on the top of the connecting frame, and the printing plate roller body connected to the connecting roller via the connecting assembly;

[0006] The heat dissipation assembly is used to dissipate heat for the printing plate roller body. The heat dissipation assembly can also be used to heat the printing plate roller body. The heat dissipation assembly includes a connecting shell fixedly connected to the top of the connecting frame. A heating chamber and a cooling chamber are respectively opened in the middle of the connecting shell. Both ends of the cooling chamber and the heating chamber are respectively fixedly connected to a first conveying pipe and a second conveying pipe. Both ends of the connecting shell are respectively fixedly connected to a guide pipe and a return pipe. The guide pipe and the return pipe are both designed as a three-way pipe structure. A closing block is provided between the guide pipe and the return pipe and the first conveying pipe and the second conveying pipe. The closing block is slidably connected to the connecting shell.

[0007] The connecting assembly is used to seal the printing plate roller body and the connecting roller.

[0008] As a preferred solution of the present invention, a semiconductor refrigeration plate is fixedly connected inside the connecting shell and located between the cooling chamber and the heating chamber, and metal conduction plates are fixedly connected on both sides of the semiconductor refrigeration plate and located inside the cooling chamber and the heating chamber respectively.

[0009] As a preferred solution of the present invention, the two groups of closing blocks are connected by a driving screw, the driving screw is rotationally connected to the connecting shell, and the closing blocks move axially outside the driving screw.

[0010] As a preferred solution of the present invention, the top of the driving screw is fixedly connected to the first bevel gear, the outer side of the first bevel gear is meshed with the second bevel gear, the two sets of second bevel gears are connected by a transmission rod, the transmission rod is rotationally connected to the connecting shell, the transmission rod is fixedly connected to the second bevel gear, the front end of the transmission rod is fixedly connected to the driving motor, and the driving motor is fixedly mounted on the top of the connecting shell.

[0011] As a preferred solution of the present invention, a connecting cylinder is fixedly connected to the outside of the mounting seat and located on the outside of the connecting roller. The connecting cylinder and the connecting roller are rotationally connected, and the guide pipe and the return pipe are respectively connected to the two groups of connecting cylinders.

[0012] As a preferred solution of the present invention, cavities are provided inside the connecting roller and the printing plate roller body, multiple groups of heat sinks are fixedly connected inside the printing plate roller body and inside the cavity, multiple groups of through grooves are provided inside the printing plate roller body, and a water pump is fixedly connected to the outside of the guide tube, and the water pump is fixedly installed at the front end of the connecting shell.

[0013] As a preferred solution of the present invention, the connecting assembly includes a connecting sleeve fixedly connected to one end of the mounting seat close to the printing plate roller body, an elastic connecting ring is fixedly connected to the front end of the connecting sleeve, and two groups of elastic movable rings are slidably connected to the middle of the connecting sleeve, and the two groups of elastic movable rings are connected by multiple groups of first compression springs.

[0014] As a preferred solution of the present invention, both ends of the first compression spring are fixedly connected to the two sets of elastic movable rings, and the printing plate roller body is sealedly connected to the connecting sleeve via the elastic movable ring and the elastic connecting ring.

[0015] As a preferred solution of the present invention, sealing rings are fixedly connected on both sides of the elastic connecting ring and inside the connecting sleeve, a deformation groove is opened on the outside of the sealing ring, and multiple groups of elastic extrusion blocks are fixedly connected on the outside of the elastic connecting ring and inside the connecting sleeve.

[0016] As a preferred solution of the present invention, the rear end of the connecting sleeve is threadedly connected to a threaded rod, the printing plate roller body is connected to the threaded rod through a fixed groove, the outer side of the threaded rod is slidably connected to a movable ring, and the top of the movable ring and the outer side of the threaded rod are fixedly connected to a second compression spring.

[0017] The beneficial effects of the present invention are:

[0018] 1. In the present invention, through the design of the heat dissipation component, the heat dissipation component includes a heating chamber and a cooling chamber, which are respectively used to store the heated and cooled cooling liquid, and the cooling liquid circulates between the heating chamber and the cooling chamber through the first delivery pipe and the second delivery pipe. The guide pipe and the return pipe are responsible for introducing and exporting the cooling liquid into and out of the printing plate roller body. The closing block is used to control the flow direction of the cooling liquid. They can slide in the connecting shell under the action of the driving screw. Through the rotation of the driving motor, the transmission rod, the second bevel gear and the first bevel gear are linked to make the driving screw rotate, thereby driving the closing block to move. When the heating chamber needs to work, the closing blocks at both ends thereof are opened to allow the cooling liquid to flow into the guide pipe; at the same time, the closing blocks of the cooling chamber are closed to prevent the cooling liquid from flowing in, and vice versa. The semiconductor refrigeration plate located between the cooling chamber and the heating chamber cools and heats the cooling liquid respectively through its cooling and heating functions, and the metal conductive plate The cooling element is responsible for transferring heat from the semiconductor refrigeration sheet to the coolant. The water pump is responsible for pumping the coolant from the guide tube into the connecting tube, and then into the connecting roller and the printing plate roller body for heat dissipation or heating treatment. The coolant then returns to the connecting shell through the return pipe and enters the heating chamber or cooling chamber for circulation again. The circulating coolant can quickly take away the heat generated by the printing plate roller body to avoid precision degradation. Compared with traditional heat dissipation methods, the heat dissipation efficiency of this component is higher, especially suitable for small plate rollers. The heat dissipation component can not only dissipate heat, but also heat the printing plate roller body through the heating chamber to improve the ink transfer performance. By controlling the movement of the closing block, the flow direction of the coolant can be easily switched to achieve flexible temperature adjustment. The coolant circulates in a closed system to avoid the problem of external dirt entering the inside of the printing plate roller body, reducing cleaning work and improving the stability and service life of the equipment.

[0019] 2. In the present invention, through the design of the connecting component, an elastic connecting ring is provided at the front end of the connecting sleeve, and two sets of elastic movable rings are slidably connected in the middle. When the printing plate roller body is inserted into the connecting sleeve, it will squeeze the elastic connecting ring and the elastic movable ring. After the elastic movable ring is squeezed, it will generate a rebound force through the first compression spring, and closely fit the surface of the printing plate roller body. Sealing rings are provided on both sides of the elastic connecting ring, and a deformation groove is opened on the outside of the sealing ring. When the printing plate roller body contacts the sealing ring, the sealing ring will be squeezed and deformed, so as to closely fit the surface of the printing plate roller body. The design of the deformation groove enables the sealing ring to better adapt to printing plate roller bodies of different diameters, thereby improving the sealing effect and the connecting sleeve. A threaded rod is provided at the rear end, which is fixed to the connecting sleeve by a threaded connection. A fixing groove is provided on the printing plate roller body. When the threaded rod is rotated into the fixing groove, a limited connection of the printing plate roller body can be achieved. The coordinated design of the second compression spring, the movable ring and the connecting sleeve increases the stability of the threaded rod and prevents it from loosening. Through the close fit of the elastic connecting ring, the elastic movable ring and the sealing ring, the connecting assembly can achieve a sealed connection between the printing plate roller body and the connecting roller, effectively preventing the leakage of the coolant and ensuring the normal operation of the heat dissipation assembly. Through the coordination of the threaded rod and the fixing groove, the printing plate roller body can be easily installed and disassembled, which simplifies the operation process and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic structural diagram of the heat dissipation assembly of the present invention;

[0022] Figure 3 This is a cross-sectional view of the internal structure of the connecting shell of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal planar structure of the connecting shell of the present invention;

[0024] Figure 5 This is a schematic diagram of the internal planar structure of the printing plate roller body of the present invention;

[0025] Figure 6 This is a schematic diagram of the connecting sleeve structure of the present invention;

[0026] Figure 7 This is a cross-sectional view of the internal structure of the connecting sleeve of the present invention;

[0027] Figure 8 This is a schematic diagram of the internal planar structure of the connection sleeve of the present invention;

[0028] In the figure: 1. Printing plate roller body; 2. Mounting seat; 3. Connecting roller; 4. Connecting frame; 5. Heat dissipation assembly; 6. Connecting assembly; 7. Connecting shell; 8. Heating chamber; 9. Cooling chamber; 10. First conveying pipe; 11. Second conveying pipe; 12. Guide pipe; 13. Return pipe; 14. Closing block; 15. Semiconductor refrigeration plate; 16. Metal conduction plate; 17. Driving screw; 18. First bevel gear; 19. Second bevel gear; 20. Transmission rod; 21. Connecting cylinder; 22. Cavity; 23. Heat sink; 24. Through groove; 25. Water pump; 26. Connecting sleeve; 27. Elastic connecting ring; 28. Elastic moving ring; 29. ​​First compression spring; 30. Sealing ring; 31. Deformation groove; 32. Elastic extrusion block; 33. Threaded rod; 34. Moving ring; 35. Second compression spring. DETAILED DESCRIPTION

[0029] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It is obvious that the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work shall fall within the scope of protection of the present invention.

[0030] Example:

[0031] like Figures 1 to 8 As shown, a high-performance, ultra-high-speed small printing plate roller comprises: a printing plate roller body 1, with mounting seats 2 provided at both ends of the printing plate roller body 1, a connecting roller 3 rotatably connected to the interior of the mounting seats 2, the two sets of mounting seats 2 being connected by a connecting frame 4, a heat dissipation component 5 being provided on the top of the connecting frame 4, and the printing plate roller body 1 being connected to the connecting roller 3 via a connecting component 6;

[0032] The heat dissipation assembly 5 is used to dissipate heat for the printing plate roller body 1. The heat dissipation assembly 5 can also be used to heat the printing plate roller body 1. The heat dissipation assembly 5 includes a connecting shell 7 fixedly connected to the top of the connecting frame 4. A heating chamber 8 and a cooling chamber 9 are respectively opened in the middle of the connecting shell 7. The cooling chamber 9 and the heating chamber 8 are respectively fixedly connected at both ends with a first conveying pipe 10 and a second conveying pipe 11. The two ends of the connecting shell 7 are respectively fixedly connected with a guide pipe 12 and a return pipe 13. The guide pipe 12 and the return pipe 13 are both designed as a three-way pipe structure. A closing block 14 is provided between the guide pipe 12 and the return pipe 13 and the first conveying pipe 10 and the second conveying pipe 11. The closing block 14 is slidably connected to the connecting shell 7.

[0033] The connecting assembly 6 is used to seal the printing plate roller body 1 and the connecting roller 3 .

[0034] In this embodiment, a semiconductor refrigeration plate 15 is fixedly connected to the interior of the connecting shell 7 and located between the cooling chamber 9 and the heating chamber 8. Metal conduction plates 16 are fixedly connected to both sides of the semiconductor refrigeration plate 15 and located inside the cooling chamber 9 and the heating chamber 8 respectively. When the semiconductor refrigeration plate 15 is started, the heating end and the cooling end of the semiconductor refrigeration plate 15 cooperate with the two groups of metal conduction plates 16 to heat and cool the coolant inside the heating chamber 8 and the cooling chamber 9 respectively.

[0035] In this embodiment, the two groups of closing blocks 14 are connected by a driving screw 17, and the driving screw 17 is rotationally connected to the connecting shell 7. The closing block 14 moves axially on the outside of the driving screw 17. When the driving screw 17 rotates, it can drive the closing block 14 to move.

[0036] In this embodiment, the top of the driving screw 17 is fixedly connected to the first bevel gear 18, and the outer side of the first bevel gear 18 is meshed with the second bevel gear 19. The two sets of second bevel gears 19 are connected by a transmission rod 20. The transmission rod 20 is rotatably connected to the connecting shell 7. The transmission rod 20 and the second bevel gear 19 are fixedly connected. The front end of the transmission rod 20 is fixedly connected to a driving motor, which is fixedly installed on the top of the connecting shell 7. When the driving motor is started, the transmission rod 20 is driven to rotate, so that the two sets of second bevel gears 19 can rotate. Rotate, driving the first bevel gear 18 to rotate, so that the two sets of drive screws 17 can rotate, respectively driving the two sets of moving blocks to move, so that the closing blocks 14 at both ends of the heating chamber 8 are moved out from the corresponding first conveying pipes 10 and second conveying pipes 11, and the other two sets of closing blocks 14 are moved to the outside of the first conveying pipes 10 and second conveying pipes 11 at both ends of the cooling chamber 9, so that the coolant inside the heating chamber 8 can be introduced into the interior of the guide tube 12, and the above operation is repeated in reverse, so that the coolant inside the cooling chamber 9 can be introduced into the interior of the guide tube 12.

[0037] In this embodiment, a connecting tube 21 is fixedly connected to the outside of the mounting seat 2 and located on the outside of the connecting roller 3. The connecting tube 21 is rotatably connected to the connecting roller 3. The guide tube 12 and the return tube 13 are respectively connected to the two groups of connecting tubes 21. The connecting tube 21 is connected to the connecting roller 3 so that both the guide tube 12 and the return tube 13 can be connected to the connecting roller 3 through the connecting tube 21.

[0038] In this embodiment, a cavity 22 is provided inside the connecting roller 3 and the printing plate roller body 1. A plurality of heat sinks 23 are fixedly connected inside the printing plate roller body 1 and located inside the cavity 22. A plurality of through grooves 24 are provided inside the printing plate roller body 1. A water pump 25 is fixedly connected to the outside of the guide tube 12. The water pump 25 is fixedly installed at the front end of the connecting shell 7. The water pump 25 is started to introduce the cooling liquid heated inside the guide roller into the interior of the connecting tube 21, so that the cooling liquid is introduced into the interior of the connecting roller 3 and then into the interior of the printing plate roller body 1 through the connecting roller 3. With the cooperation of the heat sink 23 and the through groove 24, the printing plate roller body 1 can be heated, which helps to improve the ink transfer performance. When the printing plate roller body 1 needs to be heat-dissipated, the low-temperature cooling liquid is introduced into the interior of the guide tube 12 so that it is introduced into the interior of the printing plate roller body 1 for heat dissipation. When the cooling liquid is continuously introduced into the interior of the printing plate roller body 1, the cooling liquid is introduced into the interior of the connecting shell 7 through the reflux pipe 13 and into the interior of the cooling chamber 9 or the heating chamber 8 for cooling or heating.

[0039] In this embodiment, the connecting assembly 6 includes a connecting sleeve 26 fixedly connected to the mounting seat 2 near one end of the printing plate roller body 1, and an elastic connecting ring 27 is fixedly connected to the front end of the connecting sleeve 26. Two groups of elastic movable rings 28 are slidably connected at the middle of the connecting sleeve 26. The two groups of elastic movable rings 28 are connected by multiple groups of first compression springs 29. The two ends of the first compression springs 29 are fixedly connected to the two groups of elastic movable rings 28. The printing plate roller body 1 is sealed with the connecting sleeve 26 through the elastic movable ring 28 and the elastic connecting ring 27. The printing plate roller body 1 is connected to the connecting sleeve 26 so that the printing plate roller body 1 contacts the elastic movable ring 28 and the elastic connecting ring 27. When the printing plate roller body 1 contacts the elastic movable ring 28, the elastic movable ring 28 is driven to move. The elastic movable ring 28 squeezes the first compression spring 29. The first compression spring 29 is squeezed to generate a rebound force, so that the elastic movable ring 28 can fit the surface of the printing plate roller body 1.

[0040] In this embodiment, sealing rings 30 are fixedly connected to both sides of the elastic connecting ring 27 and located inside the connecting sleeve 26. A deformation groove 31 is opened on the outside of the sealing ring 30. A plurality of groups of elastic extrusion blocks 32 are fixedly connected to the outside of the elastic connecting ring 27 and located inside the connecting sleeve 26. The elastic connecting ring 27 is squeezed by the elastic extrusion blocks 32 so that the elastic connecting ring 27 can fit the surface of the printing plate roller body 1. When the printing plate roller body 1 is connected to the connecting sleeve 26, it can contact with the two groups of sealing rings 30, squeeze the sealing ring 30, and cause the sealing ring 30 to be deformed through the deformation groove 31 and fit the surface of the printing plate roller body 1. Through the overall design, the printing plate roller body 1 can be sealed and connected to the connecting sleeve 26 to prevent liquid leakage.

[0041] In this embodiment, the rear end of the connecting sleeve 26 is threadedly connected to a threaded rod 33, and the printing plate roller body 1 is connected to the threaded rod 33 through a fixed groove. The outer side of the threaded rod 33 is slidably connected to a movable ring 34, and the top of the movable ring 34 and the outer side of the threaded rod 33 are fixedly connected to a second compression spring 35. When the printing plate roller body 1 is connected to the connecting sleeve 26, the threaded rod 33 is rotated to move it to the inside of the installation groove and limit the connection with the printing plate roller body 1, so that the printing plate roller body 1 can be installed. The second compression spring 35 cooperates with the movable ring 34 and the connecting sleeve 26 to increase the stability of the threaded rod 33 and prevent it from loosening and affecting the installation.

[0042] Implementation plan: In actual use, the printing plate roller body 1 is connected to the connecting sleeve 26, so that the printing plate roller body 1 contacts the elastic movable ring 28 and the elastic connecting ring 27. When the printing plate roller body 1 contacts the elastic movable ring 28, the elastic movable ring 28 is driven to move. The elastic movable ring 28 squeezes the first compression spring 29. The first compression spring 29 is squeezed to generate a rebound force, so that the elastic movable ring 28 can fit the surface of the printing plate roller body 1. The elastic connecting ring 27 is squeezed by the elastic squeezing block 32, so that the elastic connecting ring 27 can fit the surface of the printing plate roller body 1. When the printing plate roller body 1 is connected to the connecting sleeve 26, The seal rings 30 can be in contact with the two sets of seal rings 30, squeezed, and deformed through the deformation grooves 31 to fit the surface of the printing plate roller body 1. Through the overall design, the printing plate roller body 1 can be sealed and connected with the connecting sleeve 26 to prevent liquid leakage. When the printing plate roller body 1 is connected with the connecting sleeve 26, the threaded rod 33 is rotated to move it to the inside of the installation groove and limit the connection with the printing plate roller body 1, so that the printing plate roller body 1 can be installed. The second compression spring 35 cooperates with the moving ring 34 and the connecting sleeve 26 to increase the stability of the threaded rod 33 to prevent loosening and affect installation. The drive is started. The motor drives the transmission rod 20 to rotate, so that the two sets of second bevel gears 19 can rotate, and the first bevel gear 18 can rotate, so that the two sets of driving screws 17 can rotate, respectively driving the two sets of moving blocks to move, so that the closing blocks 14 at both ends of the heating chamber 8 are moved out from the corresponding first conveying pipes 10 and second conveying pipes 11, and the other two sets of closing blocks 14 are moved to the outside of the first conveying pipes 10 and second conveying pipes 11 at both ends of the cooling chamber 9, so that the coolant inside the heating chamber 8 can be introduced into the interior of the guide pipe 12, and the above operation is repeated in reverse, so that the coolant inside the cooling chamber 9 can be introduced into the interior of the guide pipe 12, and the water pump 25 is started to move the guide roller inside. The partially heated coolant is introduced into the interior of the connecting tube 21, so that the coolant is introduced into the interior of the connecting roller 3, and is introduced into the interior of the printing plate roller body 1 through the connecting roller 3. In conjunction with the heat sink 23 and the through groove 24, the printing plate roller body 1 can be heated, which helps to improve the ink transfer performance. When the printing plate roller body 1 needs to be heat-dissipated, the low-temperature coolant is introduced into the interior of the guide tube 12, so that it is introduced into the interior of the printing plate roller body 1 for heat dissipation. When the coolant is continuously introduced into the interior of the printing plate roller body 1, the coolant is introduced into the interior of the connecting shell 7 through the reflux pipe 13, and is introduced into the interior of the cooling chamber 9 or the heating chamber 8 for cooling or heating treatment.

[0043] Although preferred embodiments of the present invention have been described, further changes and modifications may be made to these embodiments by those skilled in the art once the basic inventive concepts are understood. It is apparent that various changes and modifications may be made to the present invention by those skilled in the art without departing from the spirit and scope of the present invention. Thus, the present invention is intended to encompass such changes and modifications as fall within the scope of equivalents of the present invention.

Claims

1. A high-performance ultra-high-speed small printing plate roller, characterized in that: include: The printing plate roller body has mounting seats at both ends, and the inner parts of the mounting seats are rotatably connected to the connecting roller. The two sets of mounting seats are connected by a connecting frame, and a heat dissipation component is provided on the top of the connecting frame. The printing plate roller body is connected to the connecting roller through the connecting component. The heat dissipation assembly is used to dissipate heat for the printing plate roller body. The heat dissipation assembly can also be used to heat the printing plate roller body. The heat dissipation assembly includes a connecting shell fixedly connected to the top of the connecting frame. A heating chamber and a cooling chamber are respectively opened in the middle of the connecting shell. Both ends of the cooling chamber and the heating chamber are respectively fixedly connected to a first conveying pipe and a second conveying pipe. Both ends of the connecting shell are respectively fixedly connected to a guide pipe and a return pipe. The guide pipe and the return pipe are both designed as a three-way pipe structure. A closing block is provided between the guide pipe and the return pipe and the first conveying pipe and the second conveying pipe. The closing block is slidably connected to the connecting shell. The connecting component is used to seal the printing plate roller body and the connecting roller.

2. A high-performance, ultra-high-speed small printing plate roller according to claim 1, characterized in that: A semiconductor refrigeration plate is fixedly connected inside the connecting shell and located between the cooling chamber and the heating chamber. Metal conduction plates are fixedly connected on both sides of the semiconductor refrigeration plate and located inside the cooling chamber and the heating chamber respectively.

3. The high-performance, ultra-high-speed small printing plate roller according to claim 1, characterized in that: The two groups of closing blocks are connected by a driving screw, the driving screw is rotationally connected to the connecting shell, and the closing block moves axially outside the driving screw.

4. The high-performance ultra-high-speed small printing plate roller according to claim 3, characterized in that: The top of the driving screw is fixedly connected to the first bevel gear, the outer side of the first bevel gear is meshed with the second bevel gear, the two sets of second bevel gears are connected by a transmission rod, the transmission rod is rotationally connected to the connecting shell, the transmission rod is fixedly connected to the second bevel gear, the front end of the transmission rod is fixedly connected to the driving motor, and the driving motor is fixedly installed on the top of the connecting shell.

5. The high-performance ultra-high-speed small printing plate roller according to claim 1, characterized in that: A connecting cylinder is fixedly connected to the outside of the mounting seat and located on the outside of the connecting roller. The connecting cylinder and the connecting roller are rotationally connected. The guide pipe and the return pipe are respectively connected to the two groups of connecting cylinders.

6. The high-performance ultra-high-speed small printing plate roller according to claim 5, characterized in that: A cavity is provided inside the connecting roller and the printing plate roller body. Multiple sets of heat sinks are fixedly connected inside the printing plate roller body and inside the cavity. Multiple sets of through grooves are provided inside the printing plate roller body. A water pump is fixedly connected to the outside of the guide tube, and the water pump is fixedly installed at the front end of the connecting shell.

7. The high-performance ultra-high-speed small printing plate roller according to claim 1, characterized in that: The connecting assembly includes a connecting sleeve fixedly connected to one end of the mounting seat close to the printing plate roller body, an elastic connecting ring fixedly connected to the front end of the connecting sleeve, two groups of elastic movable rings slidingly connected to the middle of the connecting sleeve, and the two groups of elastic movable rings are connected by multiple groups of first compression springs.

8. The high-performance, ultra-high-speed small printing plate roller according to claim 7, characterized in that: Both ends of the first compression spring are fixedly connected to the two sets of elastic movable rings, and the printing plate roller body is sealedly connected to the connecting sleeve through the elastic movable ring and the elastic connecting ring.

9. The high-performance ultra-high-speed small printing plate roller according to claim 8, characterized in that: Sealing rings are fixedly connected on both sides of the elastic connecting ring and inside the connecting sleeve. Deformation grooves are opened on the outside of the sealing ring. Multiple groups of elastic extrusion blocks are fixedly connected on the outside of the elastic connecting ring and inside the connecting sleeve.

10. The high-performance ultra-high-speed small printing plate roller according to claim 1, characterized in that: The rear end of the connecting sleeve is threadedly connected to a threaded rod, the printing plate roller body is connected to the threaded rod through a fixed groove, the outer side of the threaded rod is slidably connected to a movable ring, and the top of the movable ring is fixedly connected to the outer side of the threaded rod with a second compression spring.

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