Printing and dampening device

Abstract

This invention relates to a printing damping apparatus. A water-transferring clutch movable frame and a water-applying clutch movable support are configured on a damping main support. A water source roller and a metering roller are connected to the water-transferring clutch movable frame, and a water-applying roller is connected to the water-applying clutch movable support. The water roller is located on the moving path of the metering roller as the water-transferring clutch movable frame moves forward and applies pressure. A connecting rod is hinged to the water-applying clutch movable support, and the connecting rod has a retraction force-receiving part. The water-transferring clutch movable frame has a retraction force-applying part. Only a clutch movement drive device on the damping main support is needed to move the water-transferring clutch movable frame forward and backward. This not only moves the metering roller forward and backward, but also causes the water-transferring clutch movable frame to move forward along with the water-applying clutch movable support and the water-applying roller. The retraction of the water-transferring clutch movable frame can be achieved by the connecting rod, causing the water-applying clutch movable support and the water-applying roller to retract together. The water-applying clutch movement of the water-applying clutch movable support and the water-applying roller does not require an additional drive structure or a separate power source.

Description

Technical Field

[0001] This invention relates to a dampening device for printing equipment. Background Technology

[0002] In printing equipment, the printing plate needs to be dampened with dampening solution to cooperate with the printing operation. The dampening solution is output from the water box by the water source roller, and then transferred to the subsequent water-applying roller or plate-mounting roller by the metering roller. Finally, the water-applying roller transfers the dampening solution to the printing plate for dampening.

[0003] During the printing process, printing needs to be paused. At this time, the water-applying roller and the printing roller must be separated to cut off the water supply. When printing resumes, the water-applying roller and the printing roller must be brought together again to press and supply water. Furthermore, if the metering roller and the water-applying roller remain in a close, pressed state during a printing pause, it will increase wear on their surfaces and affect their service life. This transmission structure, which involves separating and pressing the rollers together, is complex and requires multiple power sources.

[0004] Furthermore, during the dampening solution transfer process, the surfaces of rollers such as the water source roller, metering roller, and water-applying roller will wear, and the combined pressure of the combined pressure for water transfer will change, affecting the water transfer effect. If the combined pressure is adjusted, the transmission structure will change. For example, if a direct gear transmission structure is used, the expansion or wear of the rubber water roller will prevent the two gears from reaching the ideal transmission state where the pitch circle is tangent. The transmission between the gears will cause vibration and shaking, affecting the stability of water transfer and causing problems such as printing tooth bars. Summary of the Invention

[0005] In view of the technical problems existing in the background art, the technical problem solved by the present invention is to provide a printing damping device with a relatively simplified power structure for water transfer (such as water contact) clutch action, which does not require too many power sources.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a printing damping device, comprising a damping main support, a water source roller, a metering roller, and a water-applying roller, wherein the damping main support is configured on a plate-adhering clutch guide rail, and a plate roller station is provided in the plate-adhering forward direction of the damping main support; characterized in that: it further comprises a water-transfer clutch movable frame and a water-applying clutch movable frame, the water-transfer clutch movable frame and the water-applying clutch movable frame are configured on the damping main support, the water source roller and the metering roller are fitted together on the water-transfer clutch movable frame, and the water-applying roller is mounted on the water-applying clutch. On the movable support, the water-applying roller is positioned in front of the metering roller, and the water-applying roller is located on the moving path of the metering roller as it moves forward and engages with the water-transfer clutch movable frame. The water-transfer clutch movable frame is connected to the clutch movement drive device. A connecting rod is also provided between the water-transfer clutch movable frame and the water-applying clutch movable support. The connecting rod is hinged to the water-applying clutch movable support. A retraction force-receiving part is provided on the connecting rod, and a retraction force-applying part is provided on the water-transfer clutch movable frame. The retraction force-applying part is positioned in front of the retraction force-receiving part, and a separation gap is left between the retraction force-applying part and the retraction force-receiving part.

[0007] The following optimizations or supplementary explanations can be made to the above technical solutions.

[0008] For example, the water-applying clutch moving bracket is a reciprocating moving bracket without an independent power source. The water-applying clutch moving bracket is also equipped with a water-equalizing roller for cooperating with the water-applying roller to evenly distribute water. The water-applying roller is a passive rotating roller without an independent power source. The water-applying clutch moving bracket adopts a water-applying clutch swing arm type bracket. The swing axis of the water-applying clutch swing arm type bracket is set coaxially with the axis of the water-equalizing roller. The water-equalizing roller is configured on the lower side of the water-applying roller. The water-equalizing roller is driven by a water-equalizing drive device. The water-transfer clutch movable frame and the water-applying clutch moving bracket are respectively in the forward-moving position state. The distance between the retraction force application part and the retraction force receiving part is the separation gap. The clutch moving drive device is connected to the dampening plate main bracket.

[0009] In addition, a limiting mechanism is provided between the main support of the damping plate and the connecting rod for limiting the forward and backward movement of the connecting rod. For example, the limiting mechanism includes a limiting cam and a limiting hole, which are respectively provided on the connecting rod and the main support of the damping plate. The limiting cam is located in the limiting hole, which has a limited range of motion for the limiting cam to move relatively forward and backward. The limiting hole is provided on the connecting rod, and the main support of the damping plate is provided with an adjusting worm and an adjusting worm wheel. The adjusting worm and the adjusting worm wheel are mounted on a support base, which is provided on the main support of the damping plate. The adjusting worm and the adjusting worm wheel are connected in a driving connection, and the limiting cam is provided on the adjusting worm wheel. The limiting cam is an eccentric wheel that is eccentrically set with respect to the adjusting worm wheel.

[0010] Alternatively, a water-applying roller axis position adjustment mechanism can be installed on the water-applying clutch moving bracket. For example, the water-applying roller axis position adjustment mechanism includes a self-aligning worm gear and a self-aligning worm wheel. The self-aligning worm gear and the self-aligning worm wheel are connected by a drive. The self-aligning worm wheel is provided with a support sleeve, and the support sleeve is provided with an eccentric support hole. The axis of the water-applying roller is coaxial with the axis of the eccentric support hole, and the central axis of the water-applying roller is connected to the eccentric support hole.

[0011] Furthermore, in the optimization, the water source roller is connected to a first gear, with the axis of the water source roller coaxial with the axis of the first gear. The metering roller is connected to a second gear, with the axis of the metering roller coaxial with the axis of the second gear. The water transmission clutch movable frame includes a water transmission clutch moving bracket and a pressure regulating swing arm. The pressure regulating swing arm is mounted on the water transmission clutch moving bracket, which is also equipped with a transition transmission gear set. The metering roller is connected to the water transmission clutch moving bracket via the pressure regulating swing arm. The transition transmission gear set includes an output transition gear. The swing axis of the pressure regulating swing arm is coaxial with the axis of the output transition gear. The first gear is connected to the transition transmission gear set, and the output transition gear is connected to the second gear through meshing transmission.

[0012] In an additional optimization, a pressure adjustment mechanism is provided between the metering roller and the water-applying roller. For example, this mechanism includes a rotary pressure-adjusting cam block, the rotation axis of which is coaxial with the axis of the metering roller. The rotary pressure-adjusting cam block has a pressure-adjusting contact surface. The water-applying clutch moving bracket has a contact mating part, which corresponds to the pressure-adjusting contact surface. The water-transfer clutch movable frame also has a mounting seat for detaching and connecting the metering roller. A pressure-adjusting worm gear is fitted onto the mounting seat, its rotation axis coaxial with the axis of the metering roller. The rotary pressure-adjusting cam block is connected to the pressure-adjusting worm gear, which is driven by a pressure-adjusting worm. The pressure-adjusting worm is mounted on the water-transfer clutch movable frame. The pressure-adjusting contact surface is a pressure-adjusting curved surface. The mounting seat is located on top, and the pressure-adjusting worm is mounted on the pressure-adjusting swing arm.

[0013] For example, the transition transmission gear set also includes an input transition gear; the first gear, input transition gear, output transition gear, and second gear are sequentially meshed and connected for transmission; a swing arm rotation adjustment device is provided between the water transmission clutch moving bracket and the pressure regulating swing arm, and the swing arm rotation adjustment device is connected to the pressure regulating swing arm for transmission; the swing arm rotation adjustment device is used to adjust the center distance between the metering roller and the water source roller; the retraction force application part is set on the water transmission clutch moving bracket or on the pressure regulating swing arm, and the water transmission clutch moving bracket adopts a water transmission clutch swing arm type bracket; the swing axis of the water transmission clutch swing arm type bracket is coaxial with the axis of the water source roller, and the clutch movement drive device includes a clutch swing type movement drive component. For example, the water source roller is driven by a drive shaft, which is fitted with a hollow shaft. A first bearing is located between the hollow shaft and the drive shaft. The drive shaft is connected to the water source roller, and the drive shaft, hollow shaft, and water source roller are arranged coaxially. The drive shaft is connected to a power input wheel. The inner end of the drive shaft is connected to the water source roller, and the outer end is connected to the power input wheel. The hollow shaft is connected to a clutch-type oscillating drive component and a water-transmitting clutch-type moving bracket. The inner end of the hollow shaft is connected to the water-transmitting clutch-type moving bracket, and the outer end is connected to the clutch-type oscillating drive component. The hollow shaft is mounted on the dampening plate support, and a second bearing is located between the hollow shaft and the dampening plate support. The water source roller includes a water source roller cylinder. One end of the water source roller is fixedly connected to a first shaft, which is mounted on the drive shaft. A first gear is mounted on the drive shaft. The other end of the water source roller is connected to a second shaft, which is connected to the water source roller cylinder. A third bearing is provided between the cylinders. A second shaft is mounted on the swing shaft, which is coaxial with the hollow shaft. The swing shaft is mounted on the damping plate support. A fourth bearing is also provided between the swing shaft and the damping plate support. The swing shaft is driven by a clutch-type swing drive component and a water-transmitting clutch-type moving bracket. The inner end of the swing shaft is connected to the water-transmitting clutch-type moving bracket, and the outer end is connected to the clutch-type swing drive component. A mounting seat for detaching and connecting the metering roller is provided on the pressure regulating arm. The two ends of the metering roller are respectively mounted on the mounting seat. The metering roller includes a support mandrel and a metering roller. The metering roller is sleeved on the support mandrel. A fifth bearing is provided between the metering roller and the support mandrel. A second gear is connected to the end of the metering roller. The two ends of the support mandrel are respectively mounted on the pressure regulating arm and connected to the mounting seat. The damping plate support is driven by a lifting and adjusting transmission device, and the plate-mounting clutch guide rail is mounted on the main support wall plate.

[0014] The beneficial effects of this invention are as follows: only a clutch-driven mechanism is needed on the damping plate support to move the water-transfer clutch movable frame forward and backward. This not only moves the metering roller forward and backward, but also moves the water-feeding clutch movable frame forward, which in turn moves the water-feeding clutch movable frame and the water-feeding roller forward. The backward movement of the water-transfer clutch movable frame can be achieved by connecting rods, which together move the water-feeding clutch movable frame and the water-feeding roller backward. Only a clutch-driven mechanism is needed to engage and disengage these components. The water-feeding clutch movable frame and the water-feeding roller do not require additional drive structures or independent power sources, reducing the number of power sources, simplifying the power structure, eliminating the need for additional control programs, reducing costs, and also relatively reducing the load on the damping plate support.

[0015] After further structural optimization, when the pressure between the water source roller and the metering roller needs adjustment, or when adjustment is needed after wear occurs during water transfer between the water source roller and the metering roller, the pressure adjusting arm can be rotated to adjust it to a suitable position coaxially with the center of the output transition gear around its swing center. This ensures that the pressure between the water source roller and the metering roller is appropriate. After adjustment, the first gear, the transition transmission gear set, and the second gear can always maintain normal meshing and transmission, and the center distance between the meshing gears will not change. This avoids changes in the gear meshing state due to adjustment, which would affect normal meshing and transmission, ensuring transmission and water transfer stability, and reducing or even avoiding vibration and shaking that could cause watermarks on printed materials. Changes in the diameter of the water source roller and the metering roller will not affect the printing transmission and printing effect. Even if wear occurs, they can be adjusted and continued to be used, ensuring durability, reducing operating costs, and decreasing the frequency of replacement. Furthermore, the water source roller, metering roller, transition transmission gear set, pressure regulating swing arm, etc., can all move forward and backward with the water transmission clutch moving bracket, which can be used for clutch engagement. When retracting, the disengagement pressure is used to separate backward from other water transmission structures (such as the water-applying roller), which facilitates the position adjustment of the pressure regulating swing arm and metering roller. When moving forward, the closing pressure is used to move forward to meet other water transmission structures (such as the water-applying roller), which facilitates water transmission. It is even possible to drive other water transmission structures (such as the water-applying roller) to engage and disengage with the printing roller through the water transmission clutch moving bracket, which can cooperate to separate and disengage the disengagement pressure and close and meet the closing pressure, simplifying the power structure. The clutch movement of the water transmission clutch moving bracket can be used for linkage coordination. Attached Figure Description

[0016] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of the present invention.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a schematic diagram showing the hidden portion of the structure in this invention.

[0019] Figure 3 for Figure 1 Partial sectional view of FF.

[0020] Figure 4 for Figure 3 Partial sectional view of EE.

[0021] In the picture:

[0022] 1. Water source roller; 10. First gear; 11. Drive shaft; 12. First bearing; 13. Power input wheel; 14. Water source roller; 15. First shaft; 16. Second shaft; 17. Third bearing;

[0023] 2. Metering roller; 20. Second gear; 21. Support spindle; 22. Metering roller; 23. Fifth bearing;

[0024] 3. Water-transmitting clutch moving bracket; 30. Water-transmitting clutch swing arm bracket; 31. Hollow rotating shaft; 32. Second bearing; 33. Swinging rotating shaft; 34. Fourth bearing; 300. Water-transmitting clutch movable frame;

[0025] 4. Transition transmission gear set; 40. Output transition gear; 41. Input transition gear; 42. Rotary support shaft;

[0026] 5. Pressure regulating arm; 50. Mounting base; 51. Pressure regulating mechanism; 52. Rotary pressure regulating cam block; 521. Pressure regulating mounting surface; 53. Pressure regulating worm gear; 54. Pressure regulating worm.

[0027] 6. Swing arm rotation adjustment device; 60. Lead screw seat; 61. Adjusting lead screw; 62. Rotating shaft; 63. Spacer;

[0028] 7. Clutch-driven movement mechanism; 70. Clutch-operated swing-type movement drive component;

[0029] 71. Connecting rod; 72. Retracting force receiving part; 73. Limiting mechanism; 731. Limiting cam; 732. Limiting hole; 74. Adjusting worm; 75. Adjusting worm wheel; 76. Support seat; 77. Retracting force applying part; 78. Hinge shaft;

[0030] 8. Main support frame; 80. Clutch guide rail; 81. Lifting and adjusting transmission device; 82. Supporting main wall panel;

[0031] 9. Water-applying roller; 90. Water-applying clutch moving bracket; 901. Support mating part; 91. Water-equalizing roller; 92. Self-aligning worm gear; 93. Self-aligning worm wheel; 94. Support sleeve; 95. Eccentric support hole;

[0032] 100. Printing roller. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the implementation of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] Referring to the accompanying drawings, the printing damping device in this embodiment includes a damping support 8, a water source roller 1, a metering roller 2, and a water-applying roller 9. The damping support 8 is disposed on a plate-mounting clutch guide rail 80. The damping support 8 is provided with a plate roller station in the plate-mounting forward direction. The damping support 8 moves along the plate-mounting clutch guide rail 80 and can separate from and approach the plate roller 100 at the plate roller station. It can adapt to plate rollers 100 of different diameters by moving as a whole.

[0035] The printing damping device also includes a water transfer clutch movable frame 300 and a water application clutch movable bracket 90, which are configured on the damping main bracket 8. The water source roller 1 and the metering roller 2 are installed on the water transfer clutch movable frame 300 and move together with the water transfer clutch movable frame 300. The water application roller 9 is installed on the water application clutch movable bracket 90 and moves together with the water application clutch movable bracket 90. Furthermore, the water transfer clutch movable frame 300 and the water application clutch movable bracket 90 can move accordingly on the damping main bracket 8 to perform corresponding water transfer clutch and water application clutch, or they can move together with the damping main bracket 8 along the plate clutch guide rail to adapt to plate rollers 100 of different diameters.

[0036] The water-applying roller 9 is positioned in front of the metering roller 2. The water-applying roller 9 is located on the moving path of the metering roller 2 as it moves forward with the water-transfer clutch movable frame 300, allowing the metering roller 2 to engage with the water-applying roller 9 for water transfer. For example, the water-applying roller 9 may be located on the forward swing path of the water-transfer clutch movable frame 300 (such as the water-transfer clutch movable bracket 3). The forward movement of the water-transfer clutch movable frame 300 also engages the water-applying clutch movable bracket 90, causing the metering roller 2 to move forward and engage the water-applying roller 9, thereby driving the water-applying clutch movable bracket 90 and the water-applying roller 9 forward.

[0037] The water-transmitting clutch movable frame 300 is connected to the clutch movement drive device 7, which is configured to drive the water-transmitting clutch movable frame 300 to perform clutch movement.

[0038] A connecting rod 71 is provided between the water-transmitting clutch movable frame 300 and the water-applying clutch movable bracket 90. The water-transmitting clutch movable frame 300 will drive the water-applying clutch movable bracket 90 to retract through the connecting rod 71. The connecting rod 71 is hinged to the water-applying clutch movable bracket 90 (connected by a hinge shaft 78). The connecting rod 71 is provided with a retraction force-receiving part 72 (such as a pin). The water-transmitting clutch movable frame 300 is provided with a retraction force-applying part 77 (such as the front edge of an elongated hole 777, which can be fitted over the pin of the retraction force-receiving part 72). The retraction force-applying part 77 can be directly set on the water-transmitting clutch movable bracket 3 or on the pressure regulating swing arm 5. The retraction force-applying part 77 is located on the front side of the retraction force-receiving part 72. When the water-transmitting clutch movable frame 300 (such as the water-transmitting clutch movable bracket 3) retracts, its retraction force-applying part 77 will retract and act on the retraction force-receiving part. On 72, the connecting rod 71 can be driven to retract, and the connecting rod 71 drives the water clutch moving bracket 90 to retract. Furthermore, there is a separation gap between the retraction force application part 77 and the retraction force receiving part 72. That is, when the water clutch movable frame 300 retracts, it needs to retract a certain distance to complete the retraction of the separation gap before the retraction force application part 77 contacts the retraction force receiving part 72. This ensures that when the water clutch movable frame 300 retracts, it does not immediately drive the water clutch moving bracket 90 to retract. Instead, the water clutch movable frame 300 retracts a certain distance first, then retracts to a distance that matches the separation gap before driving the water clutch moving bracket 90 to retract. This not only drives the water clutch moving bracket 90 to retract, allowing the water roller 9 to separate from the printing roller 100, but also allows the water clutch movable frame 300 and the water clutch moving bracket 90 to separate the metering roller from the water roller 9. Furthermore, the forward movement of the water-carrying clutch movable frame 300 can simultaneously engage and press the water-carrying clutch movable bracket 90, causing the metering roller to move forward and press the water roller 9, thereby driving the water-carrying clutch movable bracket 90 and the water-applying roller 9 forward. Therefore, only a clutch movement drive device is needed to coordinate and drive their clutch action; the water-applying clutch action of the water-applying clutch movable bracket 90 and its water-applying roller 9 does not require additional drive structures or independent power sources.

[0039] In this printing damping device, the damping main support 8 only needs the clutch movement drive device 7 to drive the water transfer clutch movable frame 300 to move forward and backward. This not only drives the metering roller 2 to move forward and backward, but also the forward movement of the water transfer clutch movable frame 300 can drive the water application clutch movable support 90 and the water application roller 9 to move forward together. The backward movement of the water transfer clutch movable frame 300 can be coordinated by the connecting rod 71 to drive the water application clutch movable support 90 and the water application roller 9 to move backward together. Only the clutch movement drive device 7 is needed to coordinate and drive their clutch action. The water application clutch action of the water application clutch movable support 90 and the water application roller 9 does not require an additional drive structure or an additional independent power source, reducing the number of power sources, simplifying the power structure, eliminating the need for additional control programs, reducing costs, and relatively reducing the load on the damping main support 8.

[0040] Based on the above embodiments, the following optimizations or further explanations can be made.

[0041] The water-applying clutch moving bracket 90 is a reciprocating moving bracket without an independent power source. The water-applying clutch moving bracket 90 also includes a water-distributing roller 91, which works in conjunction with the water-applying roller 9 to distribute water. The water-distributing roller 91 is connected to a water-distributing drive device, which drives its rotation and axial movement to distribute water. The water-applying roller 9 is a passive rotating roller without an independent power source; its rotation is passive and does not require an additional independent power source. It is driven by other rollers (such as the printing roller 100) during pressure application. Furthermore, the water-applying roller 9 has no additional transmission structure. This simplified transmission structure avoids the impact of wear on the transmission structure caused by the water-applying roller 9, resulting in more stable water distribution and avoiding problems such as toothed girders.

[0042] The moving structure of the water-applying clutch moving bracket 90 can be linear or swing-type. For example, in the figure, the water-applying clutch moving bracket 90 adopts a water-applying clutch swing arm type bracket. The swing axis of the water-applying clutch swing arm type bracket is coaxial with the axis of the water-equalizing roller 91, which has a relatively compact structure and a relatively low swing load, facilitating the transmission connection of the water-equalizing roller 91. The water-equalizing roller 91 is arranged on the lower side of the water-applying roller 9. When the water-transferring clutch movable frame 300 and the water-applying clutch moving bracket 90 are in the forward-moving position, the distance between the retraction force application part 77 and the retraction force receiving part 72 is the separation gap. The clutch moving drive device 7 can be connected to the dampening plate main bracket 8, allowing it to move together with the dampening plate main bracket 8, making the transmission connection more convenient.

[0043] In addition, a limiting mechanism 73 is provided between the dampening plate support 8 and the connecting rod 71 to limit the forward and backward movement of the connecting rod 71. This limiting mechanism 73 restricts the forward and backward movement of the connecting rod 71, ensuring that its movement is restricted and that it is positioned correctly. The limiting mechanism 73's forward and backward movement of the connecting rod 71 serves a dual purpose: it not only limits the forward movement of the dampening clutch moving support 90 and the dampening roller 9 to their respective pressing positions, thus limiting the pressure of the dampening roller 9 pressing against the plate roller 100, but also limits the retraction of the connecting rod 71 to the retraction of the dampening clutch moving support 90 and the dampening roller 9 to their respective releasing positions, ensuring separation from the metering roller 2.

[0044] There are various types of limiting mechanisms 73. For example, in this embodiment, the following structure will be adopted, which is easy to adjust and can be used to adjust the pressure of the contact roller 9. The limiting mechanism 73 includes a limiting cam 731 and a limiting hole 732. The limiting hole 732 and the limiting cam 731 are respectively disposed on the connecting rod 71 and the dampening plate support 8. The limiting cam 731 is located in the limiting hole 732. The limiting hole 732 has a limited space for the limiting cam 731 to move back and forth relative to each other. The limiting cam 731 can move back and forth relative to each other in the limiting hole 732 and its range of movement is constrained by the limited space of the limiting hole 732, thereby limiting the back and forth movement of the connecting rod 71. Moreover, by rotating the limiting cam 731, the start and end positions of the back and forth movement of the connecting rod 71 can be adjusted, and the pressure of the water roller 9 moving forward and pressing against the plate roller 100 can be adjusted. The adjustment can also be made accordingly; for example, the limiting hole 732 can be set on the connecting rod 71, and the limiting cam 731 can be set on the damping plate support 8. The damping plate support 8 is equipped with an adjusting worm 74 and an adjusting worm wheel 75. The adjusting worm 74 and the adjusting worm wheel 75 are mounted on a support seat 76. The support seat 76 is set on the damping plate support 8. The support seat 76 supports the adjustment screw and the adjusting worm wheel 75 to rotate. The adjusting worm 74 and the adjusting worm wheel 75 are connected by a transmission. The adjusting worm 74 drives the adjusting worm wheel 75 to rotate. The limiting cam 731 is set on the adjusting worm wheel 75. The limiting cam 731 changes its relative position in the limiting hole 732 as the adjusting worm wheel 75 rotates. Alternatively, the limiting cam 731 can be an eccentric wheel. The eccentric wheel and the adjusting worm wheel 75 are eccentrically set.

[0045] In addition, the water-applying clutch moving bracket 90 is equipped with a water-applying roller axis position adjustment mechanism. This mechanism adjusts the axial position of the water-applying roller 9 on the water-applying clutch moving bracket 90. The technology of the water-applying roller axis position adjustment mechanism is relatively mature. For example, the water-applying roller axis position adjustment mechanism includes a self-aligning worm gear 92 and a self-aligning worm wheel 93. The self-aligning worm gear 92 and the self-aligning worm wheel 93 are connected by a drive. The self-aligning worm wheel 93 is equipped with a support sleeve 94, and the support sleeve 94 is equipped with an eccentric support hole 95. The axis of the water-applying roller 9 is coaxial with the axis of the eccentric support hole 95. The self-aligning worm gear 92 drives the self-aligning worm wheel 93 to rotate. The rotation of the self-aligning worm wheel rotates the eccentric support hole 95 on the support sleeve 94 to adjust the relative position, thereby adjusting the axis position of the water-applying roller 9. The central axis of the water-applying roller 9 is connected to the eccentric support hole 95. This structure is based on the water-clutch moving bracket 90 being driven by the water-transmitting clutch movable frame 300 and connecting rod 71 to move in a clutch manner. Furthermore, the position of the water-applying roller 9's axis is adjusted, thereby enabling the adjustment of the combined pressure between the water-applying roller 9 and the water-equalizing roller 91. Since the water-applying roller 9 and the water-equalizing roller 91 are located on the water-clutch moving bracket 90, pressure adjustment can be achieved independently. Especially when the water-applying roller 9 is a passive rotating roller without an independent power source, it is not affected by the rotation adjustment of the water-applying roller 9, resulting in a simpler structure and more convenient adjustment.

[0046] Further optimization involves a pressure adjustment mechanism 51 between the metering roller 2 and the water-applying roller 9. This mechanism adjusts the pressure between the metering roller 2 and the water-applying roller 9 to regulate the water transmission pressure. Typically, the metering roller 2 and the water-equalizing roller 91 are hard rollers, while the water source roller 1 and the water-applying roller 9 are soft rollers. The pressure adjustment can be achieved by adjusting the center distance between the water-applying roller 9 and the metering roller 2. For example, the pressure adjustment mechanism 51 includes a rotating pressure-adjusting cam block 52. The rotation axis of the rotating pressure-adjusting cam block 52 is coaxial with the axis of the metering roller 2, meaning the rotating pressure-adjusting cam block 52 can rotate around the axis of the metering roller 2 to adjust its position. The rotating pressure-adjusting cam block 52 has a pressure-adjusting abutment surface 521, which adjusts its relative position (e.g., angular position) as the rotating pressure-adjusting cam block 52 rotates. The dampening plate support 8... A water-applying clutch movable bracket 90 (such as a water-applying swing arm) is provided for the water-applying roller 9 to be installed and connected. The water-applying clutch movable bracket 90 has a mating part 901, which is correspondingly set with the pressure adjusting mating surface 521. The rotating pressure adjusting cam block 52 can rest on the mating part 901 to limit its position. When the pressure adjusting mating surface 521 is rotated to adjust the relative position, the pressure can be adjusted to adjust the center distance between the water-applying roller 9 and the metering roller 2. This structure is relatively simple and uncomplicated, easy to assemble, and easy to adjust.

[0047] For example, the water-transfer clutch movable frame 300 includes a water-transfer clutch movable bracket 3 and a pressure-adjusting swing arm 5, which is mounted on the water-transfer clutch movable bracket 3. The water-transfer clutch movable frame 300 (such as the pressure-adjusting swing arm 5) can also be equipped with a mounting base 50 for detaching and connecting the metering roller 2. A pressure-adjusting worm gear 53 is fitted onto the mounting base 50, allowing the pressure-adjusting worm gear 53 to rotate relative to the mounting base 50 for adjustment. The rotation adjustment axis of the pressure-adjusting worm gear 53 is coaxial with the axis of the metering roller 2. A rotating pressure-adjusting cam block 52 is connected to the pressure-adjusting worm gear 53, meaning the rotating pressure-adjusting cam block 52 rotates around the rotation adjustment axis of the pressure-adjusting worm gear 53. The pressure-adjusting worm gear 53 is driven by a pressure-adjusting worm 54. 4. The pressure regulating worm gear 53 rotates, thereby driving the rotating pressure regulating cam block 52 to rotate. The operation is stable and has a self-locking function after adjustment to prevent displacement. The pressure regulating worm 54 is configured on the water transmission clutch movable frame 300 (such as the pressure regulating swing arm 5 mounted on it). For example, the pressure regulating worm 54 is configured on the pressure regulating swing arm 5, which is set on the water transmission clutch movable bracket 3. The mounting base 50 can also be set on the pressure regulating swing arm 5, meaning the pressure regulating worm 54 can rotate on the pressure regulating swing arm 5. Both the pressure regulating worm 54 and the pressure regulating worm gear 53 on the mounting base 50 will shift together with the pressure regulating swing arm 5. The pressure regulating resting surface 521 can be a pressure regulating curved surface, such as a non-circular curved surface, or an eccentric circular arc surface eccentric to the pressure regulating worm gear 53.

[0048] The water source roller 1 is driven by a first gear 10, and the axis of the water source roller 1 is coaxial with the axis of the first gear 10. The water source roller 1 and the first gear 10 will rotate together. The water source roller 1 is used to carry out the dampening solution in the water tray, and then transmit it to the metering roller 2 for output. The metering roller 2 is driven by a second gear 20, and the axis of the metering roller 2 is coaxial with the axis of the second gear 20. The metering roller 2 and the second gear 20 will rotate together. The first gear 10 and the second gear 20 are driven together for power transmission. It can be further optimized to have water transmission and pressure regulation functions and ensure the stability of transmission and water transmission during pressure regulation.

[0049] The water-transmitting clutch moving bracket 3 is also equipped with a transition transmission gear set 4 and a pressure regulating swing arm 5. The water source roller 1 can rotate on the water-transmitting clutch moving bracket 3 to transmit water, and the transition transmission gear set 4 can transmit power on the water-transmitting clutch moving bracket 3. The first gear 10 and the second gear 20 can be connected and engaged by the transition transmission gear set 4. The pressure regulating swing arm 5 can swing on the water-transmitting clutch moving bracket 3 to adjust their relative positions. The metering roller 2 is connected and installed on the water-transmitting clutch moving bracket 3 through the pressure regulating swing arm 5. The metering roller 2 swings and adjusts its position with the pressure regulating swing arm 5 to regulate pressure. The water source roller 1, the transition transmission gear set 4, the pressure regulating swing arm 5, and the metering roller 2 can move together with the water-transmitting clutch moving bracket 3 to perform clutch operation. The forward and backward movement of the water-transmitting clutch moving bracket 3 can be used for the water-transmitting clutch engagement action.

[0050] The transition transmission gear set 4 includes an output transition gear 40. The swing axis of the pressure regulating arm 5 is coaxial with the axis of the output transition gear 40, meaning the swing center (swing axis) of the pressure regulating arm 5 is coaxial with the rotation center axis of the output transition gear 40. The first gear 10 is connected to the transition transmission gear set 4, and the output transition gear 40 is meshed with the second gear 20. When the first gear 10 rotates with the water source roller 1, the first gear 10 transmits power to the second gear 20 through the transition transmission gear set 4, causing the metering roller 2 to rotate as well. During the swing adjustment of the pressure regulating arm 5, the second gear 20 and the metering roller 2 swing and adjust together with the pressure regulating arm 5. The second gear 20 can rotate and revolve around the output transition gear 40. The meshing transmission relationship between the second gear 20 and the output transition gear 40 will not change, and will not affect the normal meshing transmission, ensuring the transmission stability between the second gear 20 and the output transition gear 40. Moreover, during the swing adjustment of the pressure regulating arm 5, the transmission relationship between the first gear 10 and the transition transmission gear set 4, as well as the transmission relationship within the transition transmission gear set 4, will not change, and will not affect the normal meshing transmission.

[0051] When the pressure between the water source roller 1 and the metering roller 2 needs adjustment, or when adjustment is needed after wear occurs during water transfer between them, the pressure adjusting arm 5 can be rotated to align its swing center with the center of the output transition gear 40 and adjust it to a suitable position. This ensures that the pressure between the water source roller and the metering roller 2 is appropriate. After adjustment, the first gear 10, the transition transmission gear set 4, and the second gear 20 can maintain normal meshing and transmission, and the center distance between the meshing gears remains unchanged. This avoids changes in the gear meshing state due to adjustment, which could affect normal meshing and transmission, ensuring transmission and water transfer stability, and reducing or even preventing vibration and shaking that could cause watermarks or tooth marks on printed materials. The water source roller 1 and the metering roller 2 are more durable and can continue to be used even after wear, reducing operating costs and the frequency of replacement. Furthermore, the water source roller 1, metering roller 2, transition transmission gear set 4, pressure regulating swing arm 5, etc., can all move forward and backward with the water transmission clutch moving bracket 3, which can be used for water transmission clutch engagement action; when retracting, the pressure is used to separate backward from other water transmission structures (such as water-applying roller 9), which facilitates the position adjustment of pressure regulating swing arm 5 and metering roller 2; when moving forward, the pressure is used to move forward to approach other water transmission structures (such as water-applying roller 9), which facilitates water transmission; it is even possible to drive other water transmission structures (such as water-applying roller 9, etc.) to engage and disengage with the printing roller 100 through the water transmission clutch moving bracket 3, and cooperate to separate and disengage the pressure and close and approach the pressure, simplifying the power structure, and can be linked and coordinated through the clutch movement of the water transmission clutch moving bracket 3.

[0052] The following additional optimizations can also be made.

[0053] For example, the transition transmission gear set 4 also includes an input transition gear 41, which inputs power into the transition transmission gear set 4, and the transition transmission gear set 4 outputs power through the output transition gear 40. Furthermore, the first gear 10, the input transition gear 41, the output transition gear 40, and the second gear 20 are sequentially meshed and connected to form a four-gear transmission structure. The four gears mesh with each other, resulting in a more compact structure and relatively efficient transmission, ensuring that the water source roller 1 and the metering roller 2 can smoothly complete the water transfer under the combined pressure.

[0054] Among them, a swing arm rotation adjustment device 6 is provided between the water transmission clutch moving bracket 3 and the pressure regulating swing arm 5. The swing arm rotation adjustment device 6 is connected to the pressure regulating swing arm 5 through a transmission. The swing arm rotation adjustment device 6 is used to drive the pressure regulating swing arm 5 to swing and adjust its position on the water transmission clutch moving bracket 3. The swing arm rotation adjustment device 6 is used to adjust the center distance between the metering roller 2 and the water source roller 1, that is, the distance between the axes of the two rollers. It can adjust the pressure of the metering roller 2 and the water source roller 1 when they are pressed together and when they are separated. The swing arm rotation adjustment device 6 can be configured in various ways. For example, it can rotate by driving the support shaft of the pressure regulating swing arm 5, or it can rotate by pushing or pulling the pressure regulating swing arm 5. For instance, as shown in the figure, the swing arm rotation adjustment device 6 includes a lead screw seat 60, an adjusting lead screw 61, and a rotating shaft 62 with a threaded hole. The lead screw seat 60 is mounted on the water-transmitting clutch moving bracket 3 to support the rotation of the adjusting lead screw 61. The rotating shaft 62 is positioned in the mounting hole on the pressure regulating swing arm 5, allowing it to rotate relative to the other end during adjustment. The adjusting lead screw 61 is connected to the threaded hole on the rotating shaft 62. When adjustment is needed, the adjusting lead screw 61 can be rotated to engage with the threaded hole on the rotating shaft 62, causing the pressure regulating swing arm 5 to swing forward and backward. Furthermore, an adjustment channel can be provided on the pressure regulating swing arm 5 so that the adjusting lead screw 61 can pass through the adjustment channel and connect to the rotating shaft 62. The pressure regulating swing arm 5 can be a curved arm (such as an L-shaped curved arm) for easy layout in confined spaces. In the figure, a spacer 63 and an elastic ring are fitted onto the adjusting screw 61. The spacer 63 and the elastic ring (such as a compression spring or spring sheet) are positioned between the screw seat 60 and the rotating shaft 62. The elastic ring is positioned between the screw seat 60 and the spacer 63, which can eliminate the influence of the thread clearance between the screw hole and the adjusting screw 61, making the adjustment of the adjusting screw 61 more stable and relatively more precise. Further optimization is possible: the output transition gear 40 is connected to the water-transmitting clutch moving bracket 3 via a rotating support shaft 42, and the pressure regulating swing arm 5 is fitted onto the rotating support shaft 42. The rotating support shaft 42 jointly supports the output transition gear 40 and the pressure regulating swing arm 5. The shared support shaft structure is relatively compact and makes it easier to ensure coaxiality. A gear bearing can also be provided between the output transition gear 40 and the rotating support shaft 42 to ensure efficient and stable rotation of the output transition gear 40 during transmission.

[0055] The water-transfer clutch movable frame 300 has multiple clutch movement methods, commonly linear reciprocating movement or oscillating reciprocating movement. A clutch movement drive device 7 (such as a motor or cylinder) can be configured to drive the water-transfer clutch movable frame 300 to perform clutch movement. For example, the water-transfer clutch movable bracket 3 of the water-transfer clutch movable frame 300 is connected to the clutch movement drive device 7. The water-transfer clutch movable bracket 3 and the clutch movement drive device 7 can be connected to the dampening plate support 8, which is configured on the plate-mounting clutch guide rail 80. The water-transfer clutch movable bracket 3, along with the water source roller 1, transition transmission gear set 4, pressure adjusting swing arm 5, metering roller 2, and clutch movement drive device 7, will all move together with the dampening plate support 8 along the plate-mounting clutch guide rail 80, enabling separation and approach with the printing plate roller 100 of the printing equipment. This allows for adaptation to printing plate rollers 100 of different diameters through overall movement.

[0056] For example, the diagram illustrates a reciprocating oscillating clutch movement method. The water-transmitting clutch movement bracket 3 can be a water-transmitting clutch swing arm bracket 30. This means the water-transmitting clutch swing arm bracket 30 performs clutch movement via a reciprocating oscillating motion; moving forward allows for closing and pressing, while moving backward allows for separation and disengagement. Furthermore, the water-transmitting clutch swing arm bracket 30 can be optimized by coaxially aligning its oscillation axis with the axis of the water source roller 1. This means the water-transmitting clutch swing arm bracket 30, the water-transmitting clutch movement bracket 3, and the water source roller 1 will all move around the same axis, resulting in a more compact structure, more stable operation, easier subsequent power transmission, and a relatively low load on the oscillating clutch movement. The clutch movement drive device 7 includes a clutch oscillating movement drive component 70, which drives the water-transmitting clutch swing arm bracket 30 to perform oscillating clutch movement.

[0057] For example, the water source roller 1 is driven by a drive shaft 11, and a hollow shaft 31 is sleeved on the drive shaft 11. A first bearing 12 is also provided between the hollow shaft 31 and the drive shaft 11. The drive shaft 11 is driven by the water source roller 1. The drive shaft 11, the hollow shaft 31, and the water source roller 1 are arranged coaxially, which can form a compact coaxial structure. The drive shaft 11 and the hollow shaft 31 can support each other, resulting in relatively stable operation. The drive shaft 11 is driven by a power input wheel 13, which in turn drives the drive shaft 11 to rotate. The drive shaft 11 then drives the water source roller 1 to rotate and transfer water. Alternatively, the inner end of the drive shaft 11 can be driven by the water source roller 1. The outer end of the hollow shaft 31 is connected to the power input wheel 13 via transmission, resulting in a more reasonable internal and external structural layout and avoiding excessive crowding in the inner space. The hollow shaft 31 is connected to the clutch-type movable drive component 70 via transmission, and also to the water-transmitting clutch movable bracket 3 via transmission. The clutch-type movable drive component 70 can cooperate to drive the hollow shaft 31 to rotate back and forth, i.e., rotate forward and in reverse, thereby driving the water-transmitting clutch movable bracket 3 (such as the water-transmitting clutch swing arm bracket 30) to swing forward and in reverse. Alternatively, the inner end of the hollow shaft 31 can be connected to the water-transmitting clutch movable bracket 3 via transmission, and the outer end of the hollow shaft 31 can be connected to the clutch-type movable drive component 70 via transmission, resulting in a more reasonable internal and external structural layout and avoiding excessive crowding in the inner space. A hollow rotating shaft 31 is mounted on the damping plate support 8. A second bearing 32 is provided between the hollow rotating shaft 31 and the damping plate support 8. The hollow rotating shaft 31 is supported by the damping plate support 8 to rotate. The drive shaft 11 in the hollow rotating shaft 31, the water source roller 1 connected to the drive shaft 11, the water transmission clutch moving bracket 3 connected to the hollow rotating shaft 31, the transition transmission gear set 4, the pressure regulating swing arm 5, the metering roller 2, etc. on the water transmission clutch moving bracket 3 can all be supported by the damping plate support 8. The clutch moving drive device 7 is mounted on the damping plate support 8. They can move together with the damping plate support 8. The damping plate support 8 is configured on the plate contact clutch guide rail 80. The damping plate support 8 can move along the plate contact clutch guide rail 80, driving them to move together as a whole. It can separate from and approach the printing plate roller 100 of the printing equipment. It can adapt to printing plate rollers 100 of different diameters through overall movement.

[0058] For example, the water source roller 1 includes a water source roller 14. One end of the water source roller 14 is fixedly connected to a first shaft 15, which is mounted on a drive shaft 11. This allows the water source roller 1 to be disassembled and replaced on the drive shaft 11. The drive shaft 11 drives the water source roller 14 to rotate via the first shaft 15, enabling the water source roller 1 to rotate and cooperate in water transfer. A first gear 10 can be mounted on the drive shaft 11, ensuring that the first gear 10 remains in a transmission connection, eliminating the need for frequent disassembly and ensuring stable transmission. The other end of the water source roller 14 is connected to a second shaft 16. A third bearing 17 is located between the second shaft 16 and the water source roller 14. The second shaft 16 supports the rotation of the water source roller 14 and is mounted on a swing shaft 33, allowing the water source roller 1 to be disassembled and replaced on the swing shaft 33. The swing shaft 33 supports the second shaft 16. The swing shaft 33 and the hollow shaft... The oscillating shaft 33 is mounted on the damping plate support 8 and can move together with it. A fourth bearing 34 is provided between the oscillating shaft 33 and the damping plate support 8, making the oscillating shaft 33 more stable and smooth during oscillation. The oscillating shaft 33 is also connected to the clutch-type oscillating drive component 70, which in turn connects to the water-transmitting clutch-type moving bracket 3. The hollow shaft 31 is also connected to the water-transmitting clutch-type moving bracket 3. In other words, both the oscillating shaft 33 and the hollow shaft 31 are driven back and forth by the clutch-type oscillating drive component 70. The oscillating shaft 33 and the hollow shaft 31 cooperate to drive the water-transmitting clutch-type moving bracket 3 to perform clutch-type movement. In the figure, the water-transmitting clutch-type moving bracket 3 includes left and right clutch-type moving arms, which have a relatively stable structure and are driven by the left and right hollow shafts 31 and the oscillating shaft 33 to perform clutch-type movement. Alternatively, the same structure can be used to drive the clutch-type movement and the rotation of the water source roller 1 on the left and right sides, but this is not shown in the figure. In the figure, the inner end of the swing shaft 33 is connected to the water-transmitting clutch moving bracket 3, and the outer end of the swing shaft 33 is connected to the clutch swing-type moving drive component 70. The inner and outer structure layout is more reasonable, avoiding excessive congestion in the inner space. In addition, the pressure regulating swing arm 5 is provided with a mounting seat 50 for the metering roller 2 to be disassembled and connected, so as to facilitate the disassembly and replacement of the metering roller 2. Both ends of the metering roller 2 are respectively mounted on the mounting seat 50, that is, the pressure regulating swing arm 5 at both ends of the metering roller 2 has a corresponding mounting seat 50. For example, the metering roller 2 includes a support spindle 21 and a metering roller 22. The metering roller 22 is sleeved on the support spindle 21. A fifth bearing 23 is provided between the metering roller 22 and the support spindle 21. The support spindle 21 cooperates to support the rotation of the metering roller 22. The second gear 20 can be connected to the end of the metering roller 22. The two ends of the support spindle 21 are respectively set on the pressure regulating swing arm 5. For example, the support spindle 21 is connected and assembled on the mounting base 50 for easy disassembly and assembly. In the figure, the two ends of the support spindle 21 of the metering roller 2 are connected to the mounting base 50 of the pressure regulating swing arm 5.The printing plate support 8 is connected to a lifting and adjusting transmission device 81. The plate clutch guide rail 80 is set on the supporting main wall plate 82. The lifting and adjusting transmission device 81 drives the printing plate support 8 to rise and fall. The lifting and adjusting transmission device 81 can adopt a worm gear or lead screw and nut structure for transmission.

Claims

1. A printing damping device, comprising a damping support (8), a water source roller (1), a metering roller (2), and a water-applying roller (9). The damping plate support (8) is mounted on the plate-mounting clutch guide rail (80), and the damping plate support (8) is equipped with a plate roller station in the plate-mounting forward direction. Its features include: It also includes a water-transmitting clutch movable bracket (300) and a water-applying clutch movable bracket (90), which are configured on the lubrication plate main bracket (8). The water source roller (1) and the metering roller (2) are fitted together and mounted on the water transfer clutch movable frame (300). The water source roller (1) is connected to the first gear (10) for transmission, and the metering roller (2) is connected to the second gear (20) for transmission. The first gear is connected to the second gear in a transmission connection. The water-applying roller (9) is mounted on the water-applying clutch moving bracket (90), and the water-applying roller (9) is positioned in front of the metering roller (2). The water-applying roller (9) is located on the moving path of the metering roller (2) as the water-transfer clutch movable frame (300) moves forward to engage the pressure; The water-transmitting clutch movable frame (300) is connected to the clutch movement drive device (7), and the water-transmitting clutch movable frame (300) and the water-applying clutch movement bracket (90) are also provided with a connecting rod (71). The connecting rod (71) is hinged to the water-operated clutch moving bracket (90). The connecting rod (71) is provided with a retraction force-bearing part (72). The water-transfer clutch movable frame (300) is provided with a retraction force application part (77), which is located on the front side of the retraction force receiving part (72), and a separation gap is left between the retraction force application part (77) and the retraction force receiving part (72); The water-clutch moving bracket (90) is also provided with a water-equalizing roller (91) for cooperating with the water-equalizing roller (9) to equalize the water.

2. The printing damping apparatus as described in claim 1, characterized in that: The water-clutch moving bracket (90) is a reciprocating moving bracket without an independent power source. The water-applying roller (9) is a passive rotating roller without an independent power source. The water-clutch movable bracket (90) adopts a water-clutch swing arm type bracket. The swing axis of the water-clutch swing arm bracket is coaxial with the axis of the water-equalizing roller (91). The water-equalizing roller (91) is located on the lower side of the water-applying roller (9). The water-equalizing roller (91) is connected to a water-equalizing drive device. When the water-transmitting clutch movable frame (300) and the water-receiving clutch movable bracket (90) are in the forward-moved position state, the distance between the retraction force application part (77) and the retraction force receiving part (72) is the separation gap; The clutch movement drive (7) is connected to the lubricating plate support (8).

3. The printing damping apparatus as described in claim 1, characterized in that: A limiting mechanism (73) for limiting the forward and backward movement of the connecting rod (71) is provided between the main support (8) and the connecting rod (71).

4. The printing damping apparatus as described in claim 3, characterized in that: The limiting mechanism (73) includes a limiting cam (731) and a limiting hole (732). The limiting hole (732) and the limiting cam (731) are respectively located on the connecting rod (71) and the damping plate support (8). The limiting cam (731) is located in the limiting hole (732). The limiting hole (732) has a limited space for the limiting cam (731) to move back and forth relative to each other; The limiting hole (732) is set on the connecting rod (71), and the damping plate support (8) is provided with an adjusting worm (74) and an adjusting worm wheel (75). The adjusting worm (74) and the adjusting worm wheel (75) are mounted on the support seat (76), and the support seat (76) is set on the damping plate support (8). The adjusting worm (74) and the adjusting worm wheel (75) are connected in a transmission manner, and the limiting cam (731) is set on the adjusting worm wheel (75). The limiting cam (731) adopts an eccentric wheel that is eccentrically set with the adjusting worm gear (75).

5. The printing damping apparatus as described in claim 1, characterized in that: The water-applying clutch moving bracket (90) is equipped with a water-applying roller shaft centerline position adjustment mechanism; The water roller axis position adjustment mechanism includes a self-aligning worm (92) and a self-aligning worm wheel (93). The self-aligning worm (92) and the self-aligning worm wheel (93) are connected in a transmission manner. The self-aligning worm wheel (93) is provided with a support sleeve (94). The support sleeve (94) is provided with an eccentric support hole (95). The axis of the water roller (9) is coaxial with the axis of the eccentric support hole (95). The central axis of the water roller (9) is connected to the eccentric support hole (95).

6. The printing damping apparatus as described in claim 1, characterized in that: The water source roller (1) is connected to a first gear (10) for transmission. The axis of the water source roller (1) is coaxial with the axis of the first gear (10). The axis of the metering roller (2) is coaxial with the axis of the second gear (20). The water-transfer clutch movable bracket (300) includes a water-transfer clutch movable support (3) and a pressure regulating swing arm (5), the pressure regulating swing arm (5) being mounted on the water-transfer clutch movable support (3). The water-transmitting clutch moving bracket (3) is also equipped with a transition transmission gear set (4). The metering roller (2) is connected to the water transmission clutch moving bracket (3) via the pressure regulating swing arm (5). The metering roller (2) is connected to the pressure regulating swing arm (5). The transition transmission gear set (4) includes an output transition gear (40). The swing axis of the pressure regulating arm (5) is coaxial with the axis of the output transition gear (40). The first gear (10) is connected to the transition gear set (4) for transmission, and the output transition gear (40) is connected to the second gear (20) for meshing transmission.

7. The printing damping apparatus as described in claim 6, characterized in that: A pressure regulating mechanism (51) is also provided between the metering roller (2) and the water-applying roller (9).

8. The printing damping apparatus as described in claim 7, characterized in that: The pressure regulating mechanism (51) includes a rotary pressure regulating cam block (52), the rotation axis of the rotary pressure regulating cam block (52) is coaxial with the axis of the metering roller (2), the rotary pressure regulating cam block (52) has a pressure regulating abutment surface (521), and the water clutch moving bracket (90) has a abutment mating part (901), which is correspondingly arranged with the pressure regulating abutment surface (521); The water-transfer clutch movable frame (300) is also provided with a mounting base (50) for the metering roller (2) to be disassembled and connected, and a pressure regulating worm gear (53) is fitted on the mounting base (50). The rotation adjustment axis of the pressure regulating worm wheel (53) is coaxial with the axis of the metering roller (2). The rotating pressure regulating cam block (52) is connected to the pressure regulating worm wheel (53). The pressure regulating worm wheel (53) is connected to the pressure regulating worm (54). The pressure regulating worm (54) is mounted on the water transmission clutch movable frame (300). The pressure regulating surface (521) adopts a pressure regulating curved surface; The mounting base (50) is set on the pressure regulating arm (5), and the pressure regulating worm (54) is arranged on the pressure regulating arm (5).

9. The printing damping apparatus as described in claim 6, characterized in that: The transition transmission gear set (4) also includes an input transition gear (41); the first gear (10), the input transition gear (41), the output transition gear (40), and the second gear (20) are sequentially meshed and connected for transmission; A swing arm rotation adjustment device (6) is provided between the water transmission clutch moving bracket (3) and the pressure regulating swing arm (5). The swing arm rotation adjustment device (6) is connected to the pressure regulating swing arm (5) in a transmission manner. The swing arm rotation adjustment device (6) is used to adjust the center distance between the metering roller (2) and the water source roller (1). The retraction force application part (77) is set on the water transmission clutch moving bracket (3) or on the pressure regulating swing arm (5). The water-transmitting clutch moving bracket (3) adopts a water-transmitting clutch swing arm bracket (30); The swing axis of the water-transmitting clutch swing arm bracket (30) is coaxial with the axis of the water source roller (1). The clutch movement drive device (7) includes a clutch swing type movement drive component (70).

10. The printing damping apparatus as described in claim 9, characterized in that: The water source roller (1) is connected to a drive shaft (11), and a hollow shaft (31) is sleeved on the drive shaft (11). A first bearing (12) is also provided between the hollow shaft (31) and the drive shaft (11). The drive shaft (11) is connected to the water source roller (1) in a drive-driven manner. The drive shaft (11), the hollow shaft (31), and the water source roller (1) are arranged on the same axis. The drive shaft (11) is connected to the power input wheel (13); the inner end of the drive shaft (11) is connected to the water source roller (1) and the outer end of the drive shaft (11) is connected to the power input wheel (13). The hollow shaft (31) is connected to the clutch swing type moving drive component (70) and the hollow shaft (31) is connected to the water-transmitting clutch moving bracket (3). The inner end of the hollow shaft (31) is connected to the water-transmitting clutch moving bracket (3) and the outer end of the hollow shaft (31) is connected to the clutch swing type moving drive component (70). A hollow rotating shaft (31) is mounted on the dampening plate support (8), and a second bearing (32) is provided between the hollow rotating shaft (31) and the dampening plate support (8). The water source roller (1) includes a water source roller (14). One end of the water source roller (14) is fixedly connected to the first shaft (15), the first shaft (15) is mounted on the drive shaft (11), and the first gear (10) is mounted on the drive shaft (11). The other end of the water source roller (14) is connected to a second shaft (16), and a third bearing (17) is located between the second shaft (16) and the water source roller (14). The second shaft (16) is mounted on the swing shaft (33). The swing shaft (33) and the hollow shaft (31) are set on the same axis. The swing shaft (33) is mounted on the damping plate support (8), and a fourth bearing (34) is also provided between the swing shaft (33) and the damping plate support (8). The swing shaft (33) is connected to the clutch swing type moving drive component (70). The swing shaft (33) is connected to the water-cooled clutch moving bracket (3). The inner end of the swing shaft (33) is connected to the water-transmitting clutch moving bracket (3) for transmission, and the outer end of the swing shaft (33) is connected to the clutch swing-type moving drive component (70) for transmission. The pressure regulating arm (5) is provided with a mounting base (50) for the metering roller (2) to be disassembled and connected. Both ends of the metering roller (2) are respectively mounted on the mounting base (50). The metering roller (2) includes a support mandrel (21) and a metering roller (22). The metering roller (22) is sleeved on the support mandrel (21). A fifth bearing (23) is provided between the metering roller (22) and the support mandrel (21). A second gear (20) is connected to the end of the metering roller (22). The two ends of the support spindle (21) are respectively set on the pressure regulating swing arm (5). The support spindle (21) is connected and assembled on the mounting base (50); The main support bracket (8) is connected to a lifting and adjusting transmission device (81), and the plate clutch guide rail (80) is set on the supporting main wall plate (82).

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