Water conveying mechanism of printing dampening device

Abstract

The utility model relates to a water transfer mechanism of a printing dampening device, which is characterized in that a water source roller drives a first gear, a water transfer roller drives a second gear, the water source roller is connected to a water transfer clutch movable support, a transition transmission gear set and a pressure regulating swing arm are arranged on the water transfer clutch movable support, and the water transfer roller is connected to the pressure regulating swing arm. An output transition gear of the transition transmission gear set is in meshing transmission connection with the second gear, the swing axis of the pressure adjusting swing arm and the axis of the output transition gear are coaxially arranged, and the first gear is in transmission connection with the transition transmission gear set. When the leaning pressure of the water source roller and the water conveying roller needs to be adjusted or the water source roller and the water conveying roller are abraded and need to be adjusted, the pressure adjusting swing arm rotates around the center of the pressure adjusting swing arm to a proper position, so that the pressure between the water source roller and the water conveying roller is proper; after adjustment, the first gear, the transition transmission gear set and the second gear can keep a normal meshing transmission relation all the time, transmission and water transmission stability is ensured, and vibration and shaking are reduced or even avoided.

Description

Technical Field

[0001] The utility model relates to a water transfer structure of a dampening device in printing equipment. Background Art

[0002] In printing equipment, the plate roller needs to be dampened with a fountain solution to cooperate with the printing operation. The fountain solution is output from the water box by the water source roller, and is transferred to the water roller (or plate roller) behind it through the water transfer roller (such as the metering roller). The water roller then transfers the fountain solution to the plate roller for dampening.

[0003] The pressure between the water source roller and the water transfer roller needs to be adjusted to the appropriate pressure to ensure water transfer on demand and guarantee printing quality.

[0004] In addition, the water source roller and the water transfer roller each have gears that mesh with each other at their respective shaft ends, so that the water source roller and the water transfer roller can rotate in coordination. During use, the water source roller and the water transfer roller in the combined pressure state will wear out, causing the center distance between the water source roller and the water transfer roller to change. As a result, the gears at their shaft ends in the combined pressure state cannot achieve the ideal matching state of tangent pitch circles when meshing with each other. The transmission between the gears will vibrate, shake, and other problems, affecting the stability of water transmission and causing defects such as printed water bars.

[0005] In addition, the pressure between the water transfer roller and the water applicator roller also needs to be guaranteed so that water can be transferred as needed. Utility Model Content

[0006] In view of the technical problems existing in the background technology, the technical problem solved by the present invention is to provide a water transmission mechanism of a printing dampening device with a water transmission and pressure regulation function and ensuring the transmission and water transmission stability during the pressure regulation process.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions: the water transmission mechanism of the printing dampening device includes a water source roller and a water transmission roller, the water source roller is connected to the first gear, the axis of the water source roller is coaxially arranged with the axis of the first gear, the water transmission roller is connected to the second gear, the axis of the water transmission roller is coaxially arranged with the axis of the second gear, and it is characterized in that it also includes a water transmission clutch movable bracket, a transition transmission gear set and a pressure regulating swing arm, the water source roller is connected to the water transmission clutch movable bracket, the transition transmission gear set and the pressure regulating swing arm are arranged on the water transmission clutch movable bracket, the water transmission roller is connected to 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 coaxially arranged 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 in meshing transmission.

[0008] The following various optimizations or supplementary explanations can be made on the above technical solutions respectively.

[0009] For example, the transition gear set further includes an input transition gear; the input transition gear is transmission-connected to the output transition gear, and the first gear is meshed and transmission-connected with the input transition gear. For example, the first gear, the input transition gear, the output transition gear, and the second gear are meshed and transmission-connected in sequence.

[0010] In addition, a swing arm rotation adjustment device is provided between the water transmission clutch movable bracket and the pressure regulating swing arm, and the swing arm rotation adjustment device is in transmission connection with the pressure regulating swing arm; the swing arm rotation adjustment device is used to adjust the center distance between the water transmission roller and the water source roller. For example, the swing arm rotation adjustment device includes a screw seat, an adjustment screw, and a rotating shaft with a threaded hole. The screw seat is provided on the water transmission clutch movable bracket, the adjustment screw is disposed on the screw seat, the rotating shaft is disposed in an assembly hole on the pressure regulating swing arm, and the adjustment screw is in transmission connection with the threaded hole on the rotating shaft; the output transition gear is connected to the water transmission clutch movable bracket via a rotating support shaft, the pressure regulating swing arm is sleeved on the rotating support shaft, and a gear bearing is further provided between the output transition gear and the rotating support shaft.

[0011] The water transmission clutch movable bracket is connected to the clutch movable drive device. The water transmission clutch movable bracket and the clutch movable drive device are connected to the dampening plate main bracket, which is configured on the plate contact clutch guide rail. For example, the water transmission clutch movable bracket adopts a clutch swing arm bracket; the swing axis of the clutch swing arm bracket is coaxial with the axis of the water source roller, and the clutch movable drive device includes a clutch swing movable drive component.

[0012] For example, the water source roller is transmission-connected with a driving shaft, a hollow shaft is provided on the outer sleeve of the driving shaft, and a first bearing is provided between the hollow shaft and the driving shaft, the driving shaft is transmission-connected with the water source roller, the driving shaft, the hollow shaft and the water source roller are coaxially arranged, and the driving shaft is transmission-connected with a power input wheel; the inner end of the driving shaft is transmission-connected with the water source roller, and the outer end of the driving shaft is transmission-connected with the power input wheel; the hollow shaft is transmission-connected with a clutch swinging movable driving component, and the hollow shaft is transmission-connected with a water transmission clutch movable bracket; the inner end of the hollow shaft is transmission-connected with the water transmission clutch movable bracket, and the outer end of the hollow shaft is transmission-connected with the clutch swinging movable driving component; the hollow shaft is arranged on the main dampening bracket, and a second bearing is provided between the hollow shaft and the main dampening bracket.

[0013] For another example, the water source roller includes a water source roller, one end of the water source roller is fixedly connected to the first shaft, the first shaft is installed and connected to the driving shaft, the first gear is installed on the driving shaft, the other end of the water source roller is connected to the second shaft, and a third bearing is provided between the second shaft and the water source roller, the second shaft is installed and connected to the swing shaft, the swing shaft and the hollow shaft are coaxially arranged, the swing shaft is arranged on the dampening plate main bracket, and a fourth bearing is also provided between the swing shaft and the dampening plate main bracket, the swing shaft transmission is connected to the clutch swinging movable drive component, the swing shaft transmission is connected to the water transmission clutch movable bracket, and the inner end of the swing shaft is connected to the water transmission clutch movable bracket The frame is connected to the transmission, the outer end of the swing shaft is connected to the clutch swing type mobile drive component, the pressure regulating swing arm is provided with a mounting seat for disassembly and assembly of the water transfer roller, the two ends of the water transfer roller are respectively assembled on the mounting seat, the water transfer roller adopts a metering roller, the water transfer roller includes a supporting core shaft and a water transfer roller, the water transfer roller is arranged outside the supporting core shaft, and a fifth bearing is provided between the water transfer roller and the supporting core shaft, the second gear is connected to the end of the water transfer roller, the two ends of the supporting core shaft are respectively arranged on the pressure regulating swing arm, and the supporting core shaft is connected and assembled on the mounting seat; the main support of the dampening plate is connected to the lifting and adjusting transmission device, and the plate clutch guide rail is arranged on the supporting main wall panel.

[0014] In addition, the water transfer mechanism of the printing dampening device further includes a watering roller, which is disposed in front of the watering roller and is located on a moving path where the watering roller moves forward and presses with a water transfer clutch movable bracket; a pressure adjustment mechanism is provided between the watering roller and the watering roller, and the watering roller is mounted on the dampening main bracket. For example, the pressure adjustment mechanism includes a rotating pressure-adjusting cam block, the rotation axis of the rotating pressure-adjusting cam block being coaxial with the axis of the watering roller, the rotating pressure-adjusting cam block having a pressure-adjusting support surface, and a watering bracket for mounting the watering roller on the dampening main bracket, the watering bracket having a support mating portion, the support mating portion being disposed corresponding to the pressure-adjusting support surface. For another example, a mounting seat for disassembling and assembling the water transfer roller is provided on the pressure-regulating swing arm, a pressure-regulating worm gear is sleeved on the mounting seat, the rotation adjustment axis of the pressure-regulating worm gear is coaxially arranged with the axis of the water transfer roller, the rotating pressure-regulating cam block is connected to the pressure-regulating worm gear, the pressure-regulating worm gear is connected to the pressure-regulating worm, and the pressure-regulating worm is arranged on the pressure-regulating swing arm; the pressure-regulating support surface adopts a pressure-regulating curved surface.

[0015] The beneficial effect of the present invention is that when the pressure between the water source roller and the water transfer roller needs to be adjusted, or when the water source roller and the water transfer roller are worn during the water transfer process, the pressure regulating swing arm can be rotated to adjust the pressure regulating swing arm around its swing center (coaxial with the center of the output transition gear) to a suitable position, ensuring that the pressure between the water source roller and the water transfer roller is appropriate. After adjustment, the first gear, the transition transmission gear set, and the second gear can always maintain a normal meshing transmission relationship, and the center distance of the gear meshing will not change, avoiding changes in the gear meshing state due to adjustment that affect normal meshing transmission, ensuring transmission and water transfer stability, reducing or even avoiding vibration and jitter that cause water bars on printed products. Changes in the diameters of the water source roller and the water transfer roller will not affect the printing transmission and printing effect. Even if wear occurs, they can continue to be used through adjustment, making them durable, reducing usage costs, and reducing the frequency of replacement. Moreover, the water source roller, water transfer roller, transition transmission gear set, pressure regulating swing arm, etc. can all move forward and backward with the water transfer clutch movable bracket, and can be used for clutch coordination action; when retreating, the pressure is released to separate backward from other water transfer structures (such as the water roller), which is convenient for position adjustment of the pressure regulating swing arm and the water transfer roller; when moving forward, the pressure is applied forward to lean against other water transfer structures (such as the water roller), which is convenient for water transfer; even the water transfer clutch movable bracket can be used to drive other water transfer structures (such as the water roller, etc.) to engage and disengage the pressure and close the pressure with the plate roller, simplifying the power structure, and realizing linkage coordination through the clutch movement of the water transfer clutch movable bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following describes the relevant details and working principles of the implementation methods and embodiments of the present invention in conjunction with the accompanying drawings.

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 for Figure 1 Schematic diagram after hiding part of the structure.

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

[0020] In the picture:

[0021] 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;

[0022] 2. Water transfer roller; 20. Second gear; 21. Support mandrel; 22. Water transfer roller; 23. Fifth bearing;

[0023] 3. Water transmission clutch movable bracket; 30. Clutch swing arm bracket; 31. Hollow shaft; 32. Second bearing; 33. Swing shaft; 34. Fourth bearing;

[0024] 4. Transition transmission gear set; 40. Output transition gear; 41. Input transition gear; 42. Rotation support shaft;

[0025] 5. Pressure-regulating swing arm; 50. Mounting seat; 51. Pressure-regulating mechanism; 52. Rotating pressure-regulating cam support block; 521. Pressure-regulating support surface; 53. Pressure-regulating worm gear; 54. Pressure-regulating worm;

[0026] 6. Swing arm rotation adjustment device; 60. Screw seat; 61. Adjusting screw; 62. Rotating shaft; 63. Spacer;

[0027] 7. Clutch movable drive device; 70. Clutch swing movable drive component;

[0028] 8. Main support for dampening plate; 80. Plate support clutch guide rail; 81. Lifting and lowering adjustment transmission device; 82. Support main wall panel;

[0029] 9. Water roller; 90. Water support; 901. Coordination part;

[0030] 100. Plate roller. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the implementation of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Referring to the accompanying drawings, the water transfer mechanism of the printing dampening device in the embodiment of this embodiment includes a water source roller 1 and a water transfer roller 2. The water source roller 1 is used to remove the dampening solution from the water tray and then transfer it to the water transfer roller 2. The water source roller 1 is connected to a first gear 10 in a transmission manner. The axis of the water source roller 1 is coaxial with the axis of the first gear 10, and the water source roller 1 and the first gear 10 rotate together. Similarly, the water transfer roller 2 is connected to a second gear 20 in a transmission manner. The axis of the water transfer roller 2 is coaxial with the axis of the second gear 20, and the water transfer roller 2 and the second gear 20 rotate together.

[0033] The water transmission mechanism of the printing dampening device further includes a water transmission clutch movable bracket 3 , a transition transmission gear set 4 and a pressure regulating swing arm 5 .

[0034] Among them, the water source roller 1 is connected to the water transmission clutch movable bracket 3, and the water source roller 1 can rotate on the water transmission clutch movable bracket 3 to transmit water. The transition transmission gear group 4 and the pressure regulating swing arm 5 are arranged on the water transmission clutch movable bracket 3, and the transition transmission gear group 4 can transmit power on the water transmission clutch movable bracket 3, and the pressure regulating swing arm 5 can swing and adjust the relative position on the water transmission clutch movable bracket 3. The water transmission roller 2 is connected to the pressure regulating swing arm 5, and the water transmission roller 2 swings and adjusts the position with the pressure regulating swing arm 5 to adjust the pressure, and the water source roller 1, the transition transmission gear group 4, the pressure regulating swing arm 5, and the water transmission roller 2 can move together with the water transmission clutch movable bracket 3 to perform the clutch operation, and the water transmission clutch movable bracket 3 moves forward and backward, which can be used for the water transmission clutch coordination action.

[0035] Among them, the transition transmission gear set 4 includes an output transition gear 40, the swing axis of the pressure regulating swing arm 5 is coaxially arranged with the axis of the output transition gear 40, that is, the swing center (i.e., the swing axis) of the pressure regulating swing arm 5 is coaxially arranged with the rotation center axis of the output transition gear 40, and the first gear 10 is transmission-connected with the transition transmission gear set 4, and the output transition gear 40 is meshed with the second gear 20 for transmission connection. When the first gear 10 and the water source roller 1 rotate together, the first gear 10 transmits power to the second gear 20 through the transition transmission gear set 4 to rotate, and the rotation of the second gear 20 drives the water transfer roller 2 to rotate together; wherein During the swinging adjustment of the pressure-regulating swing arm 5, the second gear 20 and the water transfer roller 2 swing and adjust together with it (the pressure-regulating swing arm 5), and the second gear 20 can rotate (revolve) around and engage 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, thereby ensuring the transmission stability of the second gear 20 and the output transition gear 40. Moreover, during the swinging adjustment of the pressure-regulating swing arm 5, the transmission relationship between the first gear 10 and the transition transmission gear group 4 and the transition transmission gear group 4 will not change, and will not affect the normal meshing transmission.

[0036] Its working principle and beneficial effects are as follows: when the pressure between the water source roller 1 and the water transfer roller 2 needs to be adjusted, or when the water source roller 1 and the water transfer roller 2 are worn during the water transfer process, the pressure regulating swing arm 5 can be rotated to adjust the pressure regulating swing arm 5 around its swing center (coaxial with the center of the output transition gear 40) to a suitable position, ensuring that the pressure between the water source roller and the water transfer roller 2 (against each other) is appropriate. After adjustment, the first gear 10, the transition transmission gear set 4, and the second gear 20 can all maintain normal meshing transmission, and the center distance of the gears meshing with each other hardly changes, avoiding changes in the gear meshing state due to adjustment that affect normal meshing transmission, ensuring transmission and water transfer stability, reducing or even avoiding vibration and jitter that cause water bar and gear bar problems in printed products. The water source roller 1 and the water transfer roller 2 are more durable and can continue to be used even if they are worn, thereby reducing the cost of use and the frequency of replacement. Moreover, the water source roller 1, the water transfer roller 2, the transition transmission gear set 4, the pressure regulating swing arm 5, etc. can all move forward and backward with the water transfer clutch movable bracket 3, and can be used for the water transfer clutch coordination action; when retreating, the pressure is released to separate backward from other water transfer structures (such as the water roller 9), which is convenient for position adjustment of the pressure regulating swing arm 5 and the water transfer roller 2; when moving forward, the pressure is applied forward to lean against other water transfer structures (such as the water roller 9), which is convenient for water transfer; even the water transfer clutch movable bracket 3 can be used to drive other water transfer structures (such as the water roller 9, etc.) to engage and disengage with the plate roller 100, and cooperate to separate and disengage the pressure and close and engage the pressure, thereby simplifying the power structure and achieving linkage coordination through the clutch movement of the water transfer clutch movable bracket 3.

[0037] The following optimization or further explanation may be performed based on the above embodiments.

[0038] For example, the transition transmission gear set 4 further 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 via an 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 water transfer roller 2 can smoothly complete the rolling and water transfer when the water source roller 1 and the water transfer roller 2 are in a pressed state.

[0039] Among them, a swing arm rotation adjustment device 6 is provided between the water transmission clutch movable bracket 3 and the pressure regulating swing arm 5. The swing arm rotation adjustment device 6 is transmission-connected to the pressure regulating swing arm 5, and the swing arm rotation adjustment device 6 cooperates to drive the pressure regulating swing arm 5 to swing and adjust the position on the water transmission clutch movable bracket 3; the swing arm rotation adjustment device 6 is used to adjust the center distance between the water transmission roller 2 and the water source roller 1 (that is, the distance between the axes of the two rollers), and can adjust the pressure between the water transmission roller 2 and the water source roller 1 and drive them to separate and release pressure from each other. There are many ways to adjust the swing arm rotation mechanism 6. For example, it can be rotated by driving the support shaft of the pressure-regulating swing arm 5, or by pushing the pressure-regulating swing arm 5 forward and backward to rotate, or by pulling the pressure-regulating swing arm 5 to rotate. For example, in the figure, the swing arm rotation mechanism 6 includes a screw seat 60, an adjusting screw 61, and a rotating shaft 62 with a threaded hole. The screw seat 60 is arranged on the water transmission clutch movable bracket to support the adjusting screw 61 for rotation. The rotating shaft 62 is configured in the assembly hole on the pressure-regulating swing arm 5 so that the rotating shaft 62 can rotate relative to the assembly hole during adjustment. The adjusting screw 61 is connected to the threaded hole on the rotating shaft 62 through a transmission connection. When adjustment is required, the adjusting screw 61 can be rotated to engage the threaded hole on the rotating shaft 62 to drive the pressure-regulating swing arm 5 to swing forward or backward. In addition, an adjustment channel can be provided on the pressure-regulating swing arm 5 so that the adjusting 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) to facilitate layout in a narrow space. In the figure, the adjusting screw 61 is provided with a spacer 63 and an elastic ring. The spacer 63 and the elastic ring (such as a compression spring or shrapnel) are arranged between the screw seat 60 and the rotating shaft 62. The elastic ring is arranged between the screw seat 60 and the spacer 63, which can eliminate the influence of the thread gap between the thread hole and the adjusting screw 61, making the adjustment of the adjusting screw 61 more stable and relatively more precise. It can also be further optimized. The output transition gear 40 is connected to the water transmission clutch movable bracket 3 via the rotating support shaft 42. The pressure regulating swing arm 5 is mounted on 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 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 that the output transition gear 40 rotates efficiently and stably during the transmission process.

[0040] The water-transmitting clutch movable bracket 3 can be engaged and disengaged in a variety of ways, most commonly linear reciprocating or swinging reciprocating. A clutch movable drive device 7 (e.g., comprising a motor or cylinder) can be configured to drive the water-transmitting clutch movable bracket 3 for engaging and disengaging movement, i.e., the water-transmitting clutch movable bracket 3 is transmission-connected to the clutch movable drive device 7. The water-transmitting clutch movable bracket 3 and the clutch movable drive device 7 can be connected to a dampening plate main bracket 8, which is disposed on a plate-forming clutch guide rail 80. The water-transmitting clutch movable bracket 3, along with the water source roller 1, transition transmission gear set 4, pressure regulating swing arm 5, water transfer roller 2, and clutch movable drive device 7, can all move along the plate-forming clutch guide rail 80 with the dampening plate main bracket 8, enabling them to separate from and approach the plate roller 100 of the printing device, and adapt to plate rollers 100 of varying diameters through their overall movement.

[0041] For example, the figure illustrates a clutch-and-swing mechanism involving swinging and reciprocating motion. The water-transmitting clutch-and-swing mechanism 3 can utilize a clutch-and-swing mechanism 30, i.e., the clutch-and-swing mechanism 30 performs clutch-and-swing motion by swinging and reciprocating motion, moving forward (swinging) to engage and press, and moving backward (swinging) to separate and release. When utilizing the clutch-and-swing mechanism 30, optimization can be achieved by arranging the swing axis of the clutch-and-swing mechanism 30 coaxially with the axis of the water source roller 1. This allows the clutch-and-swing mechanism 30 (i.e., the water-transmitting clutch-and-swing mechanism 3) and the water source roller 1 to operate around the same axis. This results in a relatively compact structure and relatively stable operation, facilitating subsequent power transmission and achieving a relatively low load during swinging and clutching motion. The clutch-and-swing mechanism drive device 7 includes a clutch-and-swing mechanism drive component 70, which drives the clutch-and-swing mechanism 30 to perform swinging and clutching motion.

[0042] For example, the water source roller 1 is transmission-connected with a driving shaft 11, and a hollow shaft 31 is provided on the outer sleeve of the driving shaft 11. A first bearing 12 is further provided between the hollow shaft 31 and the driving shaft 11. The driving shaft 11 is transmission-connected with the water source roller 1, and the driving shaft 11, the hollow shaft 31 and the water source roller 1 are coaxially arranged to form a coaxial compact structure, and the driving shaft 11 and the hollow shaft 31 can support each other and run relatively stably. The driving shaft 11 is transmission-connected with a power input wheel 13, and the power input wheel 13 cooperates to input power to drive the driving shaft 11 to rotate, and the driving shaft 11 will drive the water source roller 1 to rotate to cooperate with water transmission; it can be optimized, and the inner end of the driving shaft 11 is transmission-connected with the water source roller 1, and the driving shaft 11 The outer end of the hollow shaft 31 is in transmission connection with the power input wheel 13, and the inside and outside structural layout is more reasonable, avoiding excessive congestion in the inner space; wherein, the hollow rotating shaft 31 is transmission-connected to the clutch swinging movable driving component 70, and the hollow rotating shaft 31 is transmission-connected to the water transmission clutch movable bracket 3, and the clutch swinging movable driving component 70 can cooperate to drive the hollow rotating shaft 31 to rotate back and forth (i.e., forward rotation and reverse rotation), thereby driving the water transmission clutch movable bracket 3 (such as the clutch swing arm bracket 30) to swing forward and reverse; it can be optimized, the inner end of the hollow rotating shaft 31 is transmission-connected to the water transmission clutch movable bracket 3, and the outer end of the hollow rotating shaft 31 is transmission-connected to the clutch swinging movable driving component 70, and the inside and outside structural layout is more reasonable, avoiding excessive congestion in the inner space. The hollow rotating shaft 31 is arranged on the dampening plate main bracket 8, and a second bearing 32 is provided between the hollow rotating shaft 31 and the dampening plate main bracket 8. The hollow rotating shaft 31 is supported by the dampening plate main bracket 8 to rotate. The driving rotating shaft 11 in the hollow rotating shaft 31 and the water source roller 1 connected to it (driving rotating shaft 11) and the water transmission clutch movable bracket 3 connected to the hollow rotating shaft 31 and the transition transmission gear group 4, pressure regulating swing arm 5, water transmission roller 2, etc. on it (water transmission clutch movable bracket 3) can all be supported by the dampening plate main bracket 8. The clutch moving drive device 7 is arranged on the dampening plate main bracket 8. They can move as a whole with the dampening plate main bracket 8. The dampening plate main bracket 8 is configured on the plate clutch guide rail 80. The dampening plate main bracket 8 can move along the plate clutch guide rail 80, driving them to move as a whole, and can separate from and approach the plate roller 100 of the printing equipment, and can adapt to plate rollers 100 of different sizes and diameters through overall movement.

[0043] 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 the first shaft 15, and the first shaft 15 is installed and connected to the driving shaft 11, so that the water source roller 1 can be disassembled and replaced on the driving shaft 11, and the driving shaft 11 will drive the water source roller 14 to rotate through the first shaft 15, so that the water source roller 1 rotates and runs to transmit water, and the first gear 10 can be installed on the driving shaft 11, so that the first gear 10 is still in a transmission connection relationship, and there is no need for frequent disassembly and assembly, and the transmission is stable; the other end of the water source roller 14 is connected to the second shaft 16, and a third bearing 17 is provided between the second shaft 16 and the water source roller 14, and the second shaft 16 can support the water source roller 14 to rotate, and the second shaft 16 is installed and connected to the swinging shaft 33, so that the water source roller 1 can be disassembled and replaced on the swinging shaft 33, and the second shaft 16 is supported by the swinging shaft 33; wherein, the swinging shaft 33 and the hollow shaft 31 is coaxially arranged, and the swing shaft 33 is arranged on the dampening plate main bracket 8 and can move together with the dampening plate main bracket 8. A fourth bearing 34 is also provided between the swing shaft 33 and the dampening plate main bracket 8. The fourth bearing 34 makes the swing shaft 33 more stable and smooth during the swing operation. The swing shaft 33 is also connected to the clutch swing type movable driving component 70. The swing shaft 33 is also connected to the water transmission clutch movable bracket 3. The hollow shaft 31 is also connected to the water transmission clutch movable bracket 3. That is, the swing shaft 33 and the hollow shaft 31 are driven back and forth by the clutch swing type movable driving component 70, and the swing shaft 33 cooperates with the hollow shaft 31 to drive the water transmission clutch movable bracket 3 to move in a clutch manner. In the figure, the water transmission clutch movable bracket 3 includes left and right clutch movable swing arms, which have a relatively stable structure and are driven to move in a clutch manner by the left and right hollow shafts 31 and the swing shaft 33. Of course, the same structure can also be used to drive the clutch movement and the rotation of the water source roller 1 on the left and right sides, which is not shown in the figure. In the figure, the inner end of the swing shaft 33 is in driving connection with the water transfer clutch movable bracket 3, while the outer end of the swing shaft 33 is in driving connection with the clutch swing movable drive component 70. This creates a more rational internal and external structural layout, avoiding excessive congestion on the inner side. Furthermore, the pressure-regulating swing arm 5 is provided with a mounting seat 50 for the water transfer roller 2 to be removably connected and replaced. The two ends of the water transfer roller 2 are respectively mounted on the mounting seat 50, that is, the pressure-regulating swing arm 5 at each end of the water transfer roller 2 has a corresponding mounting seat 50. For example, the water transfer roller 2 includes a support mandrel 21 and a water transfer roller 22. The water transfer roller 22 is sleeved on the support mandrel 21. A fifth bearing 23 is provided between the water transfer roller 22 and the support mandrel 21. The support mandrel 21 cooperates with the support mandrel 21 to support the water transfer roller 22 for rotation. The second gear 20 can be connected to the end of the water transfer roller 22. The two ends of the support mandrel 21 are respectively provided on the pressure regulating swing arm 5. For example, the support mandrel 21 is connected and assembled on the mounting seat 50 for easy assembly and disassembly. In the figure, the two ends of the support mandrel 21 of the water transfer roller 2 are connected to the mounting seat 50 of the pressure regulating swing arm 5. For example, the water transfer roller 2 is a metering roller.The dampening plate main bracket 8 is connected to the lifting and adjusting transmission device 81, and the plate clutch guide rail 80 is set on the supporting main wall panel 82. The dampening plate main bracket 8 is driven to rise and fall by the lifting and adjusting transmission device 81. The lifting and adjusting transmission device 81 can be driven by a worm gear or a screw nut and other structures.

[0044] The water transfer mechanism of the printing dampening device also includes a water roller 9, which is arranged on the front side of the water transfer roller 2. The water roller 9 is located on the moving path of the water transfer roller 2 as it moves forward and presses with the water transfer clutch movable bracket 3. For example, the water roller 9 is located on the forward swing moving path of the water transfer clutch movable bracket 3 (such as the clutch swing arm bracket 30) so that the water transfer roller 2 can press and transfer water with the water roller 9 when it moves forward. In addition, a pressure adjustment mechanism 51 is provided between the water transfer roller 2 and the water roller 9. The pressure adjustment mechanism 51 adjusts the pressure between the water transfer roller 2 and the water roller 9 to adjust the water transfer pressure. Usually, a hard roller is used for the water transfer roller 2 and a soft roller is used for the water roller 9. The water roller 9 is set on the dampening main bracket 8 and can move together with the dampening main bracket 8 to adapt to plate rollers 100 of different sizes and diameters. The pressure adjustment can be achieved by adjusting the center distance between the water roller 9 and the water transfer roller 2.

[0045] For example, the pressure regulating mechanism 51 includes a rotating pressure regulating cam block 52, and the rotating axis of the rotating pressure regulating cam block 52 is coaxially arranged with the axis of the water transfer roller 2, that is, the rotating pressure regulating cam block 52 can be rotated around the axis of the water transfer roller 2 to adjust the position, and the rotating pressure regulating cam block 52 has a pressure regulating support surface 521, and the pressure regulating support surface 521 will adjust the relative (such as angle) position as the rotating pressure regulating cam block 52 rotates. The dampening main bracket 8 is provided with a water support 90 (such as water Swing arm, etc.), the water-impinging bracket 90 is used for the installation and connection of the water-impinging roller 9, and the water-impinging bracket 90 has a supporting fitting portion 901, and the supporting fitting portion 901 is correspondingly arranged with the pressure-adjusting supporting surface 521. The rotating pressure-adjusting cam supporting block 52 can be supported on the supporting fitting portion 901 to limit the position. When the pressure-adjusting supporting surface 521 is rotated to adjust the relative position, the pressure can be adjusted to adjust the center distance between the water-impinging roller 9 and the water transfer roller 2. The structure is relatively simple and uncomplicated, easy to assemble, and convenient to adjust.

[0046] The worm gear 54 is arranged on the pressure regulating swing arm 5, that is, the pressure regulating worm gear 54 can rotate on the pressure regulating swing arm 5, and the pressure regulating worm gear 54 and the pressure regulating worm gear 53 on the mounting seat 50 will shift together with the pressure regulating swing arm 5. The pressure regulating supporting surface 521 may be a pressure regulating curved surface, such as a non-circular curved surface, or an eccentric circular arc surface that is eccentric to the pressure regulating worm gear 53 .

Claims

1. A water transfer mechanism of a printing dampening device, comprising a water source roller (1) and a water transfer roller (2). The water source roller (1) is transmission-connected to the first gear (10), and the axis of the water source roller (1) is coaxially arranged with the axis of the first gear (10). The water transfer roller (2) is connected to the second gear (20) in a transmission manner. The axis of the water transfer roller (2) is coaxially arranged with the axis of the second gear (20). The invention is characterized in that: It also includes a water transmission clutch movable bracket (3), a transition transmission gear set (4) and a pressure regulating swing arm (5). The water source roller (1) is connected to the water transmission clutch movable bracket (3), the transition transmission gear set (4) and the pressure regulating swing arm (5) are arranged on the water transmission clutch movable bracket (3), and the water transmission 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 swing arm (5) is coaxially arranged with the axis of the output transition gear (40). The first gear (10) is in transmission connection with the transition transmission gear set (4), and the output transition gear (40) is in meshing transmission connection with the second gear (20).

2. The water transfer mechanism of the printing dampening device according to claim 1, characterized in that: The transition transmission gear set (4) further includes an input transition gear (41); the input transition gear (41) is transmission-connected to the output transition gear (40); and the first gear (10) is meshingly transmission-connected to the 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.

3. The water transfer mechanism of the printing dampening device according to claim 1, characterized in that: A swing arm rotation adjustment device (6) is provided between the water transmission clutch movable bracket (3) and the pressure regulating swing arm (5), and the swing arm rotation adjustment device (6) is transmission-connected to the pressure regulating swing arm (5); the swing arm rotation adjustment device (6) is used to adjust the center distance between the water transmission roller (2) and the water source roller (1).

4. The water transfer mechanism of the printing dampening device according to claim 3, characterized in that: The swing arm rotation adjustment device (6) comprises a screw seat (60), an adjustment screw (61) and a rotating shaft (62) with a screw hole. The screw seat (60) is arranged on the water transmission clutch movable bracket (3), and the adjusting screw (61) is arranged on the screw seat (60). The rotating shaft (62) is arranged in the assembly hole on the pressure regulating swing arm (5), and the adjusting screw rod (61) is transmission-connected to the screw hole on the rotating shaft (62); The output transition gear (40) is connected to the water transmission clutch movable bracket (3) through the rotating support shaft (42), and the pressure regulating swing arm (5) is sleeved on the rotating support shaft (42). A gear bearing is also provided between the output transition gear (40) and the rotation support shaft (42).

5. The water transfer mechanism of the printing dampening device according to claim 1, characterized in that: The water transmission clutch movable bracket (3) is transmission-connected to the clutch movable driving device (7); the water transmission clutch movable bracket (3) and the clutch movable driving device (7) are connected to the dampening plate main bracket (8), and the dampening plate main bracket (8) is arranged on the plate clutch guide rail (80); The water transmission clutch movable bracket (3) adopts a clutch swing arm bracket (30); The swing axis of the clutch swing arm bracket (30) is coaxially arranged with the axis of the water source roller (1). The clutch movable drive device (7) includes a clutch swing movable drive component (70).

6. The water transfer mechanism of the printing dampening device according to claim 5, characterized in that: The water source roller (1) is connected to the driving shaft (11) in a transmission manner. A hollow shaft (31) is provided on the outer shell of the driving shaft (11). A first bearing (12) is provided between the hollow shaft (31) and the driving shaft (11). The driving shaft (11) is connected to the water source roller (1) in a transmission manner. The driving shaft (11), the hollow shaft (31) and the water source roller (1) are coaxially arranged. The driving shaft (11) is connected to the power input wheel (13); the inner end of the driving shaft (11) is connected to the water source roller (1), and the outer end of the driving shaft (11) is connected to the power input wheel (13); The hollow rotating shaft (31) is transmission-connected to the clutch swing-type movable driving component (70), and the hollow rotating shaft (31) is transmission-connected to the water transmission clutch movable bracket (3); the inner end of the hollow rotating shaft (31) is transmission-connected to the water transmission clutch movable bracket (3), and the outer end of the hollow rotating shaft (31) is transmission-connected to the clutch swing-type movable driving component (70); The hollow rotating shaft (31) is arranged on the dampening plate main bracket (8), and a second bearing (32) is provided between the hollow rotating shaft (31) and the dampening plate main bracket (8).

7. The water transfer mechanism of the printing dampening device according to claim 6, characterized in that: 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 driving shaft (11), and the first gear (10) is mounted on the driving shaft (11). The other end of the water source roller (14) is connected to a second shaft (16), a third bearing (17) is provided between the second shaft (16) and the water source roller (14), and the second shaft (16) is mounted on the swing shaft (33). The swing shaft (33) is coaxially arranged with the hollow shaft (31). The swing shaft (33) is arranged on the dampening plate main bracket (8), and a fourth bearing (34) is provided between the swing shaft (33) and the dampening plate main bracket (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 transmission clutch movable bracket (3). The inner end of the swing shaft (33) is in driving connection with the water transmission clutch movable bracket (3), and the outer end of the swing shaft (33) is in driving connection with the clutch swing movable driving component (70). The pressure regulating swing arm (5) is provided with a mounting seat (50) for the water transfer roller (2) to be disassembled and connected. Both ends of the water transfer roller (2) are respectively assembled on the mounting seat (50). The water transfer roller (2) adopts a metering roller. The water transfer roller (2) includes a supporting core shaft (21) and a water transfer roller (22). The water transfer roller (22) is sleeved outside the supporting core shaft (21). A fifth bearing (23) is provided between the water transfer roller (22) and the supporting core shaft (21). The second gear (20) is connected to the end of the water transfer roller (22). The two ends of the supporting core shaft (21) are respectively arranged on the pressure regulating swing arm (5). The supporting core shaft (21) is connected and assembled on the mounting seat (50); The dampening main bracket (8) is connected to the lifting and lowering adjustment transmission device (81), and the plate clutch guide rail (80) is arranged on the supporting main wall plate (82).

8. The water transfer mechanism of the printing dampening device according to claim 1, characterized in that: The invention also includes a water roller (9), which is arranged on the front side of the water transfer roller (2). The water roller (9) is located on the moving path of the water transfer roller (2) moving forward and pressing along with the water transfer clutch movable bracket (3); a close-pressing pressure regulating mechanism (51) is also provided between the water transfer roller (2) and the water roller (9), and the water roller (9) is arranged on the dampening plate main bracket (8).

9. The water transfer mechanism of the printing dampening device according to claim 8, characterized in that: The pressure regulating mechanism (51) includes a rotating pressure regulating cam block (52), the rotation axis of the rotating pressure regulating cam block (52) is coaxially arranged with the axis of the water transfer roller (2), and the rotating pressure regulating cam block (52) has a pressure regulating support surface (521). The dampening plate main bracket (8) is provided with a watering bracket (90) for mounting the watering roller (9), and the watering bracket (90) has a support fitting portion (901), and the support fitting portion (901) is correspondingly arranged with the pressure regulating support surface (521).

10. The water transfer mechanism of the printing dampening device according to claim 9, characterized in that: A mounting seat (50) for detachably connecting the water transfer roller (2) is provided on the pressure regulating swing arm (5), a pressure regulating worm gear (53) is sleeved on the mounting seat (50), a rotation adjustment axis of the pressure regulating worm gear (53) is coaxially arranged with the axis of the water transfer roller (2), a rotating pressure regulating cam block (52) is connected to the pressure regulating worm gear (53), the pressure regulating worm gear (53) is transmission-connected to a pressure regulating worm (54), and the pressure regulating worm gear (54) is arranged on the pressure regulating swing arm (5); The pressure regulating support surface (521) adopts a pressure regulating curved surface.

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