Water conveying mechanism of printing dampening device

Abstract

The invention relates to a water transfer mechanism of a printing dampening device, a water source roller is provided with a first gear in a transmission mode, a water transfer roller is provided with a second gear in a transmission mode, the water source roller is connected to a water transfer clutch moving support, a transition transmission gear set and a pressure adjusting swing arm are arranged on the water transfer clutch moving support, and the water transfer roller is connected to the pressure adjusting 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

[0002] The invention relates to a water transfer structure of a dampening device in a printing device. Background Art

[0003] In the 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.

[0004] The pressure of the contact between the water source roller and the water transfer roller needs to be adjusted to an appropriate pressure to ensure water transfer on demand and guarantee printing quality.

[0005] In addition, the water source roller and the water transfer roller each have gears at their respective axial ends that mesh with each other for transmission, 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 a pressed state will wear, causing the center distance between the water source roller and the water transfer roller to change. As a result, the gears at their axial ends in a pressed 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.

[0006] In addition, the pressure between the water transfer roller and the water application roller also needs to be guaranteed so that water can be transferred as needed. Summary of the invention

[0007] In view of the technical problems existing in the background technology, the technical problem solved by the present invention is to provide a water transfer mechanism of a printing dampening device having a water transfer and pressure regulating function and ensuring the transmission and water transfer stability during the pressure regulation process.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solution: a water transmission mechanism of a printing dampening device comprises a water source roller and a water transmission roller, the water source roller is connected to a first gear in a transmission manner, the axis of the water source roller is coaxially arranged with the axis of the first gear, the water transmission roller is connected to a second gear in a transmission manner, the axis of the water transmission roller is coaxially arranged with the axis of the second gear, and is characterized in that it also comprises 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 comprises 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 in a transmission manner, and the output transition gear is meshedly connected to the second gear in a transmission manner. The transition transmission gear set also comprises an input transition gear, the input transition gear (41) is connected to the output transition gear (40) in a transmission manner, and the first gear (10) is meshedly connected to the input transition gear (41).

[0009] The following various optimizations or supplementary explanations can be made on the above technical solutions respectively.

[0010] For example, the first gear, the input transition gear, the output transition gear, and the second gear are meshed and connected in sequence.

[0011] 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 connected to the pressure regulating swing arm by transmission; 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 thread hole, the screw seat is arranged on the water transmission clutch movable bracket, the adjustment screw is arranged on the screw seat, the rotating shaft is arranged in the assembly hole on the pressure regulating swing arm, and the adjustment screw is connected to the thread hole on the rotating shaft by transmission; the output transition gear is connected to the water transmission clutch movable bracket through a rotating support shaft, the pressure regulating swing arm is sleeved on the rotating support shaft, and a gear bearing is also provided between the output transition gear and the rotating support shaft.

[0012] The water transmission clutch movable bracket is connected to the clutch movable driving device. The water transmission clutch movable bracket and the clutch movable driving device are connected to the dampening main bracket, and the dampening main bracket is arranged on the plate 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 coaxially arranged with the axis of the water source roller, and the clutch movable driving device includes a clutch swing type movable driving component.

[0013] For example, the water source roller is transmission connected with a driving shaft, a hollow shaft is arranged on the outer sleeve of the driving shaft, a first bearing is also arranged 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 arranged between the hollow shaft and the main dampening bracket.

[0014] 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, 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, a fourth bearing is also provided between the swing shaft and the dampening plate main bracket, the swing shaft is transmission-connected to the clutch swinging movable driving component, the swing shaft is transmission-connected to the water transmission clutch movable bracket, the inner end of the swing shaft is connected to the water transmission clutch movable bracket The frame is connected with the transmission, the outer end of the swing shaft is connected with the clutch swing type mobile driving component, the pressure regulating swing arm is provided with a mounting seat for the water transfer roller to be disassembled and connected, 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 sleeved outside the supporting core shaft, 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 total support for dampening is connected with a lifting and lowering adjustment transmission device, and the plate clutch guide rail is arranged on the supporting main wall panel.

[0015] In addition, the water transfer mechanism of the printing dampening device also includes a water roller, which is arranged at the front side of the water transfer roller, and the water roller is located on the moving path of the water transfer roller moving forward and pressing with the water transfer clutch moving bracket; a pressure adjustment mechanism for abutting and pressing is also provided between the water transfer roller and the water roller, and the water roller is arranged on the dampening main bracket. For example, the pressure adjustment mechanism for abutting and pressing includes a rotating pressure regulating cam support block, the rotating axis of the rotating pressure regulating cam support block is coaxially arranged with the axis of the water transfer roller, the rotating pressure regulating cam support block has a pressure regulating support surface, and the dampening main bracket is provided with a water support bracket for the water roller to be installed, and the water support bracket has a support matching portion, and the support matching portion is arranged corresponding to the pressure regulating 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, a rotation adjustment axis of the pressure-regulating worm gear is coaxially arranged with the axis of the water transfer roller, a rotating pressure-regulating cam block is connected to the pressure-regulating worm gear, a pressure-regulating worm gear is transmission-connected to the pressure-regulating worm, and the pressure-regulating worm gear is arranged on the pressure-regulating swing arm; the pressure-regulating bearing surface adopts a pressure-regulating curved surface.

[0016] 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 to ensure that the pressure between the water source roller and the water transfer roller is a suitable pressure. 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 gears meshing with each other will not change, avoiding changes in the gear meshing state due to adjustment that affect the normal meshing transmission, ensuring the transmission and water transfer stability, reducing or even avoiding vibration and shaking 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 they are worn, they can continue to be used through adjustment, which is durable, reduces the cost of use, and reduces 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 separation pressure is used to separate backward from other water transfer structures (such as water application roller), which is convenient for position adjustment of the pressure regulating swing arm and the water transfer roller; when advancing, the closing pressure is used to move forward against other water transfer structures (such as water application roller) to facilitate water transfer; even other water transfer structures (such as water application roller, etc.) can be driven to clutch and engage with the plate roller through the water transfer clutch movable bracket, and cooperate to separate, disengage, and close and close pressure, thereby simplifying the power structure, and realizing linkage coordination through the clutch movement of the water transfer clutch movable bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following describes the relevant details and working principles of the implementation mode and embodiments of the present invention in conjunction with the accompanying drawings.

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 for Figure 1 Schematic diagram after hiding part of the structure.

[0020] Figure 3 for Figure 1 Partial cross-sectional view of FF.

[0021] In the figure: 1. Water source roller; 10. First gear; 11. Driving shaft; 12. First bearing; 13. Power input wheel; 14. Water source roller; 15. First shaft; 16. Second shaft; 17. Third bearing; 2. Water transfer roller; 20. Second gear; 21. Support mandrel; 22. Water transfer roller; 23. Fifth bearing; 3. Water transmission clutch movable bracket; 30. Clutch swing arm bracket; 31. Hollow shaft; 32. Second bearing; 33. Swing shaft; 34. Fourth bearing; 4. Transition transmission gear set; 40. Output transition gear; 41. Input transition gear; 42. Rotation support shaft; 5. Pressure regulating swing arm; 50. Mounting seat; 51. Pressure regulating mechanism for pressing against each other; 52. Rotating pressure regulating cam block; 521. Pressure regulating support surface; 53. Pressure regulating worm wheel; 54. Pressure regulating worm; 6. Swing arm rotation adjustment device; 60. Screw seat; 61. Adjusting screw; 62. Rotating shaft; 63. Spacer; 7. Clutch movable drive device; 70. Clutch swing movable drive component; 8. Main support for dampening plate; 80. Clutch guide rail for plate support; 81. Lifting and lowering adjustment transmission device; 82. Support main wall panel; 9. Water roller; 90. Water support; 901. Coordination part; 100. Plate roller. DETAILED DESCRIPTION

[0022] 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 mode of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0023] Referring to the accompanying drawings, the water transfer mechanism of the printing dampening device in the embodiment of the present embodiment includes a water source roller 1 and a water transfer roller 2. The water source roller 1 is used to bring out the dampening solution in the water tray and then transfer it to the output through the water transfer roller 2. Among them, the water source roller 1 is connected to the first gear 10 in a transmission manner, and the axis of the water source roller 1 is coaxially arranged with the axis of the first gear 10, and the water source roller 1 and the first gear 10 will rotate together; similarly, the water transfer roller 2 is connected to the second gear 20 in a transmission manner, and the axis of the water transfer roller 2 is coaxially arranged with the axis of the second gear 20, and the water transfer roller 2 and the second gear 20 will rotate together.

[0024] The water transmission mechanism of the printing dampening device also includes a water transmission clutch movable bracket 3, a transition transmission gear set 4 and a pressure regulating swing arm 5.

[0025] 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 set 4 and the pressure regulating swing arm 5 are arranged on the water transmission clutch movable bracket 3, and the transition transmission gear set 4 can transmit power on the water transmission clutch movable bracket 3. The first gear 10 and the second gear 20 can be connected and coordinated to transmit power by the transition transmission gear set 4. The pressure regulating swing arm 5 can swing on the water transmission clutch movable bracket 3 to adjust the relative position. 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 to adjust the pressure with the pressure regulating swing arm 5, and the water source roller 1, the transition transmission gear set 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 clutch operation. The water transmission clutch movable bracket 3 moves forward and backward, which can be used for water transmission clutch coordination action. A clutch moving drive device 7 (such as a motor or a cylinder) may be configured to drive the water transmission clutch moving bracket 3 to perform clutch movement, that is, the water transmission clutch moving bracket 3 is transmission-connected to the clutch moving drive device 7 .

[0026] The transition transmission gear set 4 includes an output transition gear 40 and an input transition gear 41; the input transition gear 41 is transmission-connected with the output transition gear 40, the first gear 10 is meshed and transmission-connected with the input transition gear 41, the first gear 10 inputs power into the transition transmission gear set 4 through the input transition gear 41, and the transition transmission gear set 4 outputs power through the 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 meshingly transmission-connected with the second gear 20. 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 swing adjustment process 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 mesh with 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 process of the pressure regulating swing arm 5, the transmission relationship between the first gear 10 and the transition transmission gear set 4 and the transition transmission gear set 4 will not change, and will not affect the normal meshing transmission.

[0027] Its working principle and beneficial effects are as follows: when the pressure of the water source roller 1 and the water transfer roller 2 against each other needs to be adjusted, or when the water source roller 1 and the water transfer roller 2 are adjusted after wear 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 to ensure that the pressure (against each other) between the water source roller and the water transfer roller 2 is a suitable pressure. 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 has almost no change, avoiding the change of the gear meshing state due to adjustment to affect the normal meshing transmission, ensuring the transmission and water transfer stability, reducing or even avoiding the occurrence of vibration and shaking 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 through adjustment even if they are worn, 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 coordinated action; when retreating, the separation pressure is used to separate backward from other water transfer structures (such as the water application roller 9), which is convenient for the position adjustment of the pressure regulating swing arm 5 and the water transfer roller 2; when advancing, the closing pressure is used to move forward with other water transfer structures (such as the water application roller 9) to facilitate water transfer; even the water transfer clutch movable bracket 3 can be used to drive other water transfer structures (such as the water application roller 9, etc.) to engage and disengage the separation pressure and close the pressure to simplify the power structure, and the clutch movement of the water transfer clutch movable bracket 3 can be used for linkage coordination.

[0028] The following optimization or further explanation may be performed based on the above embodiments.

[0029] For example, the first gear 10, the input transition gear 41, the output transition gear 40, and the second gear 20 are meshed and connected in sequence to form a four-gear transmission structure. The four gears are meshed with each other, the structure is more compact, and the transmission is relatively efficient, ensuring that the water source roller 1 and the water transfer roller 2 can smoothly complete the rolling and realize water transfer under the combined pressure state.

[0030] 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 with 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. Among them, there are many ways to rotate the swing arm adjustment device 6, such as driving the support shaft of the pressure regulating swing arm 5 to rotate, or pushing the pressure regulating swing arm 5 forward and backward to rotate, or pulling the pressure regulating swing arm 5 to rotate; for example, in the figure, the swing arm rotation adjustment device 6 includes a screw seat 60, an adjustment screw 61 and a rotating shaft 62 with a thread hole. The screw seat 60 is arranged on the water transmission clutch movable bracket to support the adjustment screw 61 to rotate, and the rotating shaft 62 is arranged in the assembly hole on the pressure regulating swing arm 5 so that the rotating shaft 62 can be located in the assembly hole and rotate relatively during the adjustment process. The adjustment screw 61 is connected to the thread hole on the rotating shaft 62 by transmission. When adjustment is required, the adjustment screw 61 can be rotated to cooperate with the thread hole on the rotating shaft 62 to drive the pressure regulating swing arm 5 to swing forward and backward. In addition, an adjustment channel can be set on the pressure regulating swing arm 5 so that the adjustment screw 61 passes through the adjustment channel and is connected to the rotating shaft 62; the pressure regulating swing arm 5 can adopt 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 sleeved with a spacer 63 and an elastic ring, and the spacer 63 and the elastic ring (such as a compression spring or a spring) are arranged between the screw seat 60 and the rotating shaft 62, and 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, so that the adjustment of the adjusting screw 61 is more stable and relatively more accurate. It can also be additionally optimized, 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. The output transition gear 40 and the pressure regulating swing arm 5 are jointly supported by the rotating support shaft 42. 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.

[0031] Among them, there are many clutch movement modes of the water transmission clutch movable bracket 3, and the common clutch movement modes are linear reciprocating movement or swinging reciprocating movement. The water transmission clutch movable bracket 3 and the clutch moving driving device 7 can be connected to the dampening plate main bracket 8, and the dampening plate main bracket 8 is configured on the plate-forming clutch guide rail 80; the water transmission clutch movable bracket 3 and the water source roller 1, transition transmission gear set 4, pressure regulating swing arm 5, water transmission roller 2 and clutch moving driving device 7 on it will move along the plate-forming clutch guide rail 80 as a whole with the dampening plate main bracket 8, and can separate from and approach the plate roller 100 of the printing equipment, and can adapt to plate rollers 100 of different diameters through overall movement.

[0032] For example, in the figure, the clutch movement mode of swinging reciprocating movement is used as an example for explanation, wherein the water transmission clutch movable bracket 3 can adopt a clutch swing arm bracket 30, that is, the clutch swing arm bracket 30 will be clutched and moved by swinging reciprocating movement, moving forward (swinging) to close and press, and moving backward (swinging) to separate and disengage; when the clutch swing arm bracket 30 is adopted, it can also be optimized, and the swing axis of the clutch swing arm bracket 30 is coaxially arranged with the axis of the water source roller 1, that is, the clutch swing arm bracket 30 (that is, the water transmission clutch movable bracket 3) and the water source roller 1 will run around the same axis, and its structure is relatively compact, and the operation is relatively stable, which is convenient for subsequent power transmission and relatively low swing clutch movement load. The clutch movement drive device 7 includes a clutch swinging movable drive component 70, and the clutch swinging movable drive component 70 drives the clutch swing arm bracket 30 to swing and clutch.

[0033] For example, the water source roller 1 is transmission-connected with a driving shaft 11, a hollow shaft 31 is disposed on the outer sleeve of the driving shaft 11, a first bearing 12 is further disposed between the hollow shaft 31 and the driving shaft 11, the driving shaft 11 is transmission-connected with the water source roller 1, the driving shaft 11, the hollow shaft 31 and the water source roller 1 are coaxially arranged, and a compact coaxial structure can be formed, and the driving shaft 11 and the hollow shaft 31 can support each other, and the operation is relatively stable, 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, the inner end of the driving shaft 11 is transmission-connected with the water source roller 1, the driving shaft 11 The outer end of the hollow shaft 31 is connected to the power input wheel 13 by transmission, and the layout of the inside and outside structures is more reasonable, avoiding excessive crowding of the inner space; wherein, the hollow shaft 31 is connected to the clutch swinging movable driving component 70 by transmission, and the hollow shaft 31 is connected to the water transmission clutch movable bracket 3 by transmission, and the clutch swinging movable driving component 70 can cooperate to drive the hollow 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 shaft 31 is connected to the water transmission clutch movable bracket 3 by transmission, and the outer end of the hollow shaft 31 is connected to the clutch swinging movable driving component 70 by transmission, and the layout of the inside and outside structures is more reasonable, avoiding excessive crowding of the inner space. The hollow rotating shaft 31 is arranged on the dampening plate main bracket 8, and a second bearing 32 is arranged 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 set 4, the pressure regulating swing arm 5, the 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, and 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 be separated from and approached by the plate roller 100 of the printing equipment, and can adapt to the plate roller 100 of different sizes and diameters through overall movement.

[0034] For example, the water source roller 1 includes a water source roller 14, one end of which is fixedly connected to a first shaft 15, and the first shaft 15 is installed and connected to a 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 cooperate with water transmission, 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 a 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 rotation of the water source roller 14, and the second shaft 16 is installed and connected to a 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 arranged coaxially, the swing shaft 33 is arranged on the dampening main bracket 8, and can move together with the dampening main bracket 8. A fourth bearing 34 is also arranged between the swing shaft 33 and the dampening 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 mobile driving component 70. The swing shaft 33 is connected to the water transmission clutch mobile bracket 3, and the hollow shaft 31 is also connected to the water transmission clutch mobile bracket 3. That is, the swing shaft 33 and the hollow shaft 31 are driven by the clutch swing type mobile driving component 70 to rotate back and forth, and the swing shaft 33 cooperates with the hollow shaft 31 to drive the water transmission clutch mobile bracket 3 to move in clutch. In the figure, the water transmission clutch mobile bracket 3 includes left and right clutch moving swing arms, the structure is relatively stable, and is driven by the left and right hollow shafts 31 and the swing shaft 33 to move in clutch. 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 connected to the water transmission clutch movable bracket 3, and the outer end of the swing shaft 33 is connected to the clutch swing movable driving component 70. The inner and outer structural layout is more reasonable to avoid excessive crowding of the inner space. In addition, the pressure regulating swing arm 5 is provided with a mounting seat 50 for the water transmission roller 2 to be disassembled and connected, so that the water transmission roller 2 can be disassembled and replaced. The two ends of the water transmission roller 2 are respectively assembled on the mounting seat 50, that is, the pressure regulating swing arm 5 at both ends of the water transmission 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 outside 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 water transfer roller 22 to support the rotation of the water transfer roller 22. 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 arranged on the pressure regulating swing arm 5. For example, the support mandrel 21 is connected and assembled on the mounting seat 50 for disassembly and assembly. The two ends of the support mandrel 21 of the water transfer roller 2 in the figure are connected to the mounting seat 50 of the pressure regulating swing arm 5. For example, the water transfer roller 2 adopts 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 plate 82. The dampening plate main bracket 8 is lifted and lowered 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 or other structure.

[0035] 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 moving forward with the water transfer clutch movable bracket 3, for example, the water roller 9 is located on the front 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 move forward and press the water with the water roller 9. In addition, a pressure adjustment mechanism 51 is provided between the water transfer roller 2 and the water roller 9, and the pressure between the water transfer roller 2 and the water roller 9 is adjusted by the pressure adjustment mechanism 51 to adjust the water transfer pressure. Usually, the water transfer roller 2 adopts a hard roller and the water roller 9 adopts a soft roller. The water roller 9 is arranged on the dampening main bracket 8 and can move together with the dampening main bracket 8 to adapt to the plate roller 100 of different diameters. The pressure adjustment can be achieved by adjusting the center distance between the water roller 9 and the water transfer roller 2; For example, 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, 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, the rotating pressure regulating cam block 52 has a pressure regulating support surface 521, and the pressure regulating support surface 521 will rotate with the rotating pressure regulating cam block 52 to adjust the relative position (such as angle), and the dampening main bracket 8 is provided with a watering bracket 90 (such as watering Swing arm, etc.), the watering bracket 90 is used for the installation and connection of the watering roller 9, and the watering bracket 90 has a supporting fitting portion 901, and the supporting fitting portion 901 is correspondingly arranged with the pressure-adjusting supporting surface 521, and 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 adjustment can be realized by cooperating to adjust the center distance between the watering roller 9 and the water transfer roller 2; the structure is relatively simple and uncomplicated, easy to assemble, and convenient to adjust.

[0036] The pressure regulating swing arm 5 is provided with a mounting seat 50, and the mounting seat 50 is used for the water transfer roller 2 to be disassembled and assembled. A pressure regulating worm gear 53 is sleeved on the mounting seat 50, and the pressure regulating worm gear 53 can be adjusted by relative rotation on the mounting seat 50. The rotation adjustment axis of the pressure regulating worm gear 53 is coaxially arranged with the axis of the water transfer roller 2. The rotating pressure regulating cam support block 52 is connected to the pressure regulating worm gear 53, that is, the rotating pressure regulating cam support block 52 uses the rotation adjustment axis of the pressure regulating worm gear 53 as the rotation axis. The pressure regulating worm gear 53 is transmission-connected with a pressure regulating worm 54, and the pressure regulating worm gear 54 drives the pressure regulating worm gear 53 to rotate, thereby driving the rotating pressure regulating cam support block 52 to rotate, and the operation is stable. After adjustment, it has a self-locking function to avoid displacement. The pressure regulating 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 support surface 521 may be a pressure regulating curved surface, such as a non-circular curved surface, or an eccentric circular curved 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 drivingly 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 drivingly connected to the second gear (20), and the axis of the water transfer roller (2) is coaxially arranged with the axis of the second gear (20), 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 transmission clutch movable bracket (3) is transmission-connected to the clutch movable driving device (7); 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), the water transmission roller (2) is connected to the pressure regulating swing arm (5), The transition transmission gear set (4) comprises an output transition gear (40) and an input transition gear (41); the input transition gear (41) is transmission-connected with the output transition gear (40), and the first gear (10) is meshingly transmission-connected with the input transition gear (41); 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 first gear (10), the input transition gear (41), the output transition gear (40), and the second gear (20) are meshed and connected in sequence.

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 transfer 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 transfer 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 an 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) via a 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) 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 type 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 driving device (7) comprises a clutch swing type movable driving 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 transmission-connected to a driving shaft (11); a hollow shaft (31) is disposed on an outer sleeve of the driving shaft (11); a first bearing (12) is disposed between the hollow shaft (31) and the driving shaft (11); the driving shaft (11) is transmission-connected to the water source roller (1); the driving shaft (11), the hollow shaft (31) and the water source roller (1) are coaxially arranged. The driving shaft (11) is drivingly connected to a power input wheel (13); the inner end of the driving shaft (11) is drivingly connected to the water source roller (1), and the outer end of the driving shaft (11) is drivingly connected to the power input wheel (13); The hollow rotating shaft (31) is drivingly connected to the clutch swing type movable driving component (70), and the hollow rotating shaft (31) is drivingly connected to the water transmission clutch movable bracket (3); the inner end of the hollow rotating shaft (31) is drivingly connected to the water transmission clutch movable bracket (3), and the outer end of the hollow rotating shaft (31) is drivingly 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 arranged 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) comprises 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 and connected to 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 arranged between the swing shaft (33) and the dampening plate main bracket (8). The swing shaft (33) is transmission-connected to a clutch swing-type movable driving component (70). The swing shaft (33) is transmission-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). A mounting seat (50) for the water transfer roller (2) to be detachably connected is provided on the pressure regulating swing arm (5), and both ends of the water transfer roller (2) are respectively mounted on the mounting seat (50). The water transfer roller (2) is a metering roller. The water transfer roller (2) comprises 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 mandrel (21) is connected and assembled on the mounting seat (50); The dampening main support (8) is drivingly connected to a lifting and lowering adjustment driving device (81), and the plate-supporting 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 comprises a watering roller (9), which is arranged on the front side of the water transfer roller (2) and is located on a moving path where the water transfer roller (2) moves forward and is pressed together with the water transfer clutch movable bracket (3); a pressing pressure regulating mechanism (51) is also provided between the water transfer roller (2) and the watering roller (9), and the watering 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) comprises a rotating pressure regulating cam support block (52), the rotation axis of the rotating pressure regulating cam support block (52) is coaxially arranged with the axis of the water transfer roller (2), the rotating pressure regulating cam support block (52) has a pressure regulating support surface (521), and the dampening main support (8) is provided with a watering support (90) for mounting the watering roller (9), the watering support (90) has a support matching portion (901), and the support matching portion (901) is arranged corresponding to 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 support block (52) is connected to the pressure regulating worm gear (53), the pressure regulating worm gear (53) is drivingly 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.

Images