Inking mechanism of plate cylinder and printing press

Abstract

The present invention relates to an inking mechanism of a plate cylinder and a printing press. Among them, the ink vibrator roller is connected with a support shaft through a swing arm, an inking roller is arranged on the support shaft, and brackets on both sides of the inking roller are connected to the support shaft; the brackets are rotationally adjusted; a first bolster is arranged on the brackets, and the rotation alignment transmission device connected to the brackets includes a rotation guiding seat and a rotation alignment transmission component that cooperate with each other. A rotation alignment guiding curve track is arranged on the rotation guiding seat, and the rotation alignment transmission component includes an alignment movable part that can move in cooperation along the rotation alignment guiding curve track. During the driving process of the swing arm, the rotation alignment transmission device operates in a coordinated manner, driving the brackets to rotate and align, so that the first bolster on the brackets rotates and aligns together, and the position of the rolling contact point of the first bolster remains unchanged, and the pressure width will not be affected by replacing plate cylinders with different diameter specifications, and the pressure width between the inking roller and the plate cylinder remains consistent before and after, making the inking more stable.

Description

Technical Field

[0001] The present invention relates to a printing press, and particularly to an inking mechanism and a printing press. Background Art

[0002] In printing equipment, a plate cylinder, a transfer cylinder, and an impression cylinder cooperate with each other for printing. The plate cylinder and the transfer cylinder with different outer diameters can be replaced to meet continuous printing, and the web paper does not need to be rewound. In order to enable the inking mechanism to adapt to plate cylinders (i.e., plate cylinders) with different outer diameters after replacement, the inking roller is connected to the ink vibrator roller through a swing arm. The position of the inking roller is adjusted by the swing of the swing arm so that the inking roller can cooperate with the plate cylinder of changed size. In order to ensure stable pressure when the plate cylinder and the inking roller cooperate, the bearers provided at both ends of the inking roller are in rolling contact with the bearers provided at both ends of the plate cylinder.

[0003] However, after the size of the plate cylinder changes, the position of the contact point of the bearer of the inking roller on the swing arm and the bearer of the plate cylinder (rolling contact) deviates greatly, resulting in a large change in the cooperation pressure between the inking roller and the plate cylinder, which cannot meet the printing requirements.

[0004] Therefore, in the inking mechanism and printing press of the plate cylinder of the offset printing equipment in CN110001187A, the inking roller and the second inking roller are respectively adjusted to cooperate with plate cylinders of different sizes for ink transfer by the swing of the swing arm and the second swing arm; and when the size specification of the plate cylinder changes, through the mutual cooperation of the pull arm, the second pull arm, the swing arm, and the second swing arm, the positions of the contact points of the bearers and the second bearers corresponding to the inking roller and the second inking roller respectively rolling with the bearers on both sides of the plate cylinder change less, and the pressure changes of the inking roller and the second inking roller cooperating with the plate cylinder are smaller and more stable, avoiding affecting the printing quality and effect; however, among them, the position of the contact point still has a small change (a small deviation appears in the position of the contact point), and the cooperation pressure still has a small change, which is still insufficient for higher-quality printing processes; in addition, the swing arm is pulled by the second pull arm and connected to the second bracket on the second swing arm, and the second swing arm is pulled by the pull arm and connected to the bracket of the swing arm, which is prone to mutual interference and restriction. When one swing arm is driven in place (such as by a cylinder, etc.), the other swing arm may not be able to reach the position smoothly, resulting in a large change in the pressure between the inking roller on one swing arm and the plate cylinder. Summary of the Invention

[0005] In view of the technical problems existing in the background art, the technical problem to be solved by the present invention is to provide an inking mechanism and a printing press for a plate cylinder that are different from the prior art and can be selected, and when the size specifications of the plate cylinder change, it can satisfy the rolling cooperation between the inking roller and the plate cylinder and the cooperation pressure hardly changes (almost the same before and after, and the pressure width between the inking roller and the plate cylinder remains the same before and after). In addition, the inking roller can operate independently without being affected by other inking rollers.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: The inking mechanism of the plate cylinder includes an ink vibrator roller. The front side and / or the rear side of the ink vibrator roller are connected with a support shaft through a swing arm. An inking roller is arranged on the support shaft. Brackets are respectively arranged on the left and right sides of the inking roller, and the brackets are connected to the support shaft; the brackets are relatively rotationally adjusted on the support shaft, or the brackets and the support shaft are synchronously rotationally adjusted on the swing arm; a first crowned roll is arranged on the brackets, and it is characterized in that: the brackets are drivingly connected with a rotation alignment transmission device. The rotation alignment transmission device includes a rotation guiding seat and a rotation alignment transmission component that cooperate with each other. The rotation guiding seat is fixedly installed. A rotation alignment guiding curve track is arranged on the rotation guiding seat. The rotation alignment transmission component is connected to the brackets. The rotation alignment transmission component includes an alignment moving part that can move along the rotation alignment guiding curve track, and the alignment moving part is drivingly connected to the rotation alignment guiding curve track.

[0007] The following various optimizations or supplementary explanations can be carried out on the above technical solutions respectively.

[0008] For example, each plate cylinder with different diameter specifications has corresponding preset track points. Connecting the preset track points forms a rotation alignment guiding curve track.

[0009] Further optimization, when the alignment moving part moves to the preset track point of the rotation alignment guiding curve track, the bracket is rotated to the preset position corresponding to the plate cylinder with the corresponding diameter specification. At the corresponding preset position, the position of the rolling contact point of the first crowned roll on the bracket is in place.

[0010] For another example, the alignment moving part includes a roller or a slider, the rotation alignment guiding curve track includes a curve groove or a curve guide rail, the alignment moving part is cooperatively connected to the rotation alignment guiding curve track, and the roller or the slider is arranged on the curve groove or the curve guide rail; the rotation guiding seat is installed and connected to the frame.

[0011] In addition, the swing arm is drivingly connected with a swing driving component; the ink vibrator roller and the inking roller are in rolling cooperation; the ink vibrator roller includes an ink vibrator shaft, a vibrator sleeve is arranged on the frame, the ink vibrator shaft is installed and connected in the vibrator sleeve, and the swing arm is connected and sleeved outside the vibrator sleeve.

[0012] It can also be optimized by providing a first eccentric sleeve between the shifting roller sleeve and the swing arm, and the first eccentric sleeve is rotatably adjusted; the surface layer of the inking roller is a rubber inking layer; and the swing driving component includes a cylinder or a motor.

[0013] For example, when the bracket is relatively rotatably arranged on the support shaft, the ink form roller and the support shaft are synchronously rotatably arranged on the swing arm or the ink form roller is relatively rotatably arranged on the support shaft; or,

[0014] When the bracket and the support shaft are synchronously rotated on the swing arm, the inking roller is relatively rotated on the support shaft.

[0015] For example, the first roller is rotatably arranged on the bracket around its central axis, and the first roller is arranged on the bracket through an axis position adjustment device; the axis position adjustment device includes a second eccentric sleeve, a worm wheel and a worm, the second eccentric sleeve connecting sleeve is arranged on the support shaft, the second eccentric sleeve is rotatably adjusted relative to the support shaft, the first roller sleeve is arranged outside the second eccentric sleeve, and the first roller is rotatably arranged relative to the second eccentric sleeve; the worm wheel sleeve is arranged on the support shaft, the worm wheel is rotatably adjusted relative to the support shaft, the worm wheel is connected to the second eccentric sleeve, the second eccentric sleeve and the worm wheel are integrally or separately arranged, the worm wheel transmission is connected to a worm, and the worm is rotationally adjusted on the bracket; a roller bearing is arranged between the first roller and the second eccentric sleeve, a connecting sleeve is arranged on the support shaft, the bracket is connected to the connecting sleeve, and the second eccentric sleeve and the worm wheel sleeve are arranged on the connecting sleeve.

[0016] The printing machine includes an offset printing device, which has a plate roller for replacing and assembling plate rollers of different diameters, and second rollers are respectively arranged at both ends of the plate roller. The feature is that the offset printing device also includes an inking mechanism for the plate roller.

[0017] The second roller and the first roller are rolling matched, and the rolling matching contact points of the second roller and the first roller are in corresponding contact; the diameter specifications of the second roller and the printing plate cylinder are correspondingly matched.

[0018] The beneficial effects of the present invention are as follows: in the inking mechanism of the plate cylinder, the inking roller can be driven by the swing arm to move its position, and can be adapted to plate cylinders of different diameters for inking; and in the process of being driven by the swing arm, the rotation correction transmission device cooperates with the linkage operation to cooperate with the bracket on the support shaft driving the swing arm for rotation correction, so that the first roller on the bracket is rotated and corrected together, so that the position of the first roller and the second roller in rolling cooperation remains unchanged, the rolling cooperation contact point position of the first roller (the contact point position with the second roller) remains unchanged, and the pressure width will not be affected by replacing plate cylinders of different diameters and specifications. The pressure width of the inking roller and the plate cylinder (compared with before the plate cylinder was replaced) is consistent front and back, so that inking is more stable; and the moving position of the inking roller driven by the swing arm is not interfered by other inking rollers, and can be smoothly put in place to cooperate with the plate cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following describes the implementation manners and relevant details and working principles of the embodiments of the present invention in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic structural diagram of the present invention.

[0021] Figure 2 It is a schematic structural diagram of another perspective of the present invention.

[0022] Figure 3 It is a schematic structural diagram of an embodiment of the present invention, in which the plate cylinder is relatively small.

[0023] Figure 4 It is a schematic structural diagram of another embodiment of the present invention, in which the plate cylinder is relatively large.

[0024] In the figure: a, pressure width; 5, frame; 6, roller shifting sleeve; 7, ink vibrator roller; 8, plate cylinder; 71, roller shifting shaft; 81, second cylinder shoulder; 101, first cylinder shoulder; 102, inking roller; 103, swing arm; 104, bracket; 105, swing drive component; 106, rotation guiding seat; 107, rotation alignment transmission component; 108, first eccentric sleeve; 109, support shaft; 110, worm gear; 111, ink roller seat; 112, alignment movable part; 113, cylinder shoulder bearing; 114, coupling sleeve; 116, rotation alignment guiding curve track; 117, second eccentric sleeve; 118, worm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only part of the embodiments of the implementation manners of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Referring to the accompanying drawings, in the embodiment of this implementation manner, the inking mechanism of the plate cylinder 8 includes an ink vibrator roller 7. The front side and / or the rear side of the ink vibrator roller 7 is connected with a support shaft 109 through a swing arm 103. In the figure, the front side and the rear side of each ink vibrator roller 7 are connected with a support shaft 109 through a swing arm 103. One or more (such as two, three, etc.) ink vibrator rollers 7 can be configured on the plate cylinder 8. An inking roller 102 is provided on the support shaft 109. The swing of the swing arm 103 can adjust the position to enable the corresponding inking roller 102 to cooperate with the plate cylinder 8 of different diameter specifications for rolling and inking. The printing machine includes an offset printing device, and the offset printing device will include this inking mechanism. In addition, the offset printing device has a plate cylinder shaft for replacing and assembling plate cylinders 8 of different diameter specifications, and plate cylinders 8 of different diameter specifications and sizes will be installed on the plate cylinder shaft.

[0027] Wherein, brackets 104 are respectively provided on the left and right sides of the inking roller 102, and the brackets 104 are connected to the support shaft 109. The brackets 104 are relatively rotationally adjusted on the support shaft 109 (as shown in the figure). Bearings can be provided between the brackets 104 and the support shaft 109 so that the brackets 104 can be smoothly rotationally adjusted on the support shaft 109; alternatively, the brackets 104 and the support shaft 109 are synchronously rotationally adjusted on the swing arm 103 (not shown in the figure). A first bearer 101 (or first roller bearer) is provided on the brackets 104, and second bearers 81 (or second roller bearers) are respectively configured at both ends of the plate cylinder 8. The second bearers 81 correspond to and match the diameter specifications of the plate cylinder 8, and the second bearers 81 will be replaced with the plate cylinder 8 for different specifications; when the inking roller 102, the brackets 104 and the first bearer 101 on the support shaft 109 swing towards the plate cylinder 8 along with the swing arm 103, the first bearer 101 and the second bearer 81 will perform rolling cooperation. The second bearer 81 will perform rolling cooperation by contacting the position of the rolling pressure contact point of the first bearer 101, and the inking roller 102 and the plate cylinder 8 will also perform rolling cooperation. Among them, the inking roller 102 will have a certain compression amount, which affects the amount of contact overlap between the inking roller 102 and the plate cylinder 8 (i.e., the pressure width a between the inking roller 102 and the plate cylinder 8). Under the condition that the first bearer 101 and the second bearer 81 maintain rolling cooperation, the pressure width a between the plate cylinder 8 and the inking roller 102 with the same diameter specification remains unchanged and the size remains the same. However, when the plate cylinder 8 with different diameters and sizes is replaced, the first bearer 101 swings towards the second bearer 81 again along with the swing arm 103 to make contact and perform rolling cooperation. The position of the rolling pressure contact point of the original first bearer 101 changes from the current position (after replacing the plate cylinder 8 with different diameter specifications), and the position deviates, that is, the position of the rolling cooperation between the first bearer 101 and the second bearer 81 deviates. As a result, after replacing the plate cylinder 8, the compression amount of the inking roller 102 changes and is inconsistent with that before replacement. The pressure width a between the inking roller 102 and the plate cylinder 8 is inconsistent before and after, affecting the stability of printing inking.

[0028] In order to ensure that after replacing the plate cylinder 8 of different specifications, the pressure width a between the inking roller 102 and the plate cylinder 8 (compared with before replacing the plate cylinder 8) remains consistent before and after, and the pressure of the inking roller 102 and the plate cylinder 8 in the rolling fit remains consistent, so as to make the inking more stable. In the present invention, the bracket 104 is drivingly connected with a rotation alignment transmission device. When the swing arm 103 swings (towards the plate cylinder 8), the rotation alignment transmission device cooperates to drive the bracket 104 to perform rotation alignment on the support shaft 109. The first cylinder shoulder 101 will rotate and align together with the bracket 104, so that the position of the rolling fit between the first cylinder shoulder 101 and the second cylinder shoulder 81 remains unchanged, that is, the position of the rolling fit contact point of the first cylinder shoulder 101 (the contact point position cooperating with the second cylinder shoulder 81) remains unchanged, and the change of the pressure width a will not be affected due to replacing the plate cylinder 8 with different diameter specifications of large and small.

[0029] Among them, the rotation alignment transmission device includes a rotation alignment transmission component 107 and a rotation guide seat 106 that cooperate with each other. The rotation guide seat 106 is fixedly installed. The rotation guide seat 106 is provided with a rotation alignment guide curve track 116. The rotation alignment transmission component 107 (a transmission rod is used in the figure) is connected to the bracket 104. The rotation alignment transmission component 107 will cooperate to drive the bracket 104 to perform rotation alignment. The rotation alignment transmission component 107 includes an alignment movable part 112. The alignment movable part 112 can move along the rotation alignment guide curve track 116 in cooperation. The alignment movable part 112 is drivingly connected to the rotation alignment guide curve track 116. When the alignment movable part 112 moves in cooperation on the rotation alignment guide curve track 116, it can cooperate to drive the rotation alignment transmission component 107 to act, thereby driving the bracket 104 to perform rotation alignment on the support shaft 109 of the swing arm 103. When the rotation alignment transmission device operates in cooperation, it operates in cooperation with the swing of the swing arm 103. The swing arm 103 provides power. The swing of the swing arm 103 drives the support shaft 109 to move. The support shaft 109 moves with the swing arm 103. The alignment movable part 112 of the rotation alignment transmission component 107 on the bracket 104 on the support shaft 109 will move in cooperation on the rotation alignment guide curve track 116, and cooperate to drive the alignment transmission component to act, thereby driving the bracket 104 to perform rotation alignment on the support shaft 109 of the swing arm 103; during the swing of the swing arm 103, the alignment movable part 112 of the rotation alignment transmission component 107 follows the action, and the alignment movable part 112 follows and moves in cooperation on the rotation alignment guide curve track 116, and cooperates to achieve rotation alignment.

[0030] Its working principle is as follows: By swinging the swing arm 103, the position of the inking roller 102 on the corresponding support shaft 109 is changed, so that the inking roller 102 can be smoothly adapted to the plate cylinder 8 with different diameter specifications for inking; moreover, during the process of the swing arm 103 swinging in place, the rotation correction transmission device cooperates to drive the bracket 104 on the support shaft 109 of the swing arm 103 to perform rotation correction, so that the first chuck 101 on the bracket 104 is rotated and corrected for position adjustment together. Through rotation correction, the position of the first chuck 101 in rolling cooperation with the second chuck 81 remains unchanged, and the position of the rolling contact point of the first chuck 101 (the contact point position in cooperation with the second chuck 81) remains unchanged, and the pressure width a will not be affected by replacing the plate cylinder 8 with different diameter specifications.

[0031] In the inking mechanism of the plate cylinder 8, the inking roller 102 can be driven by the swing arm 103 to move its position, and can be adapted to the plate cylinder 8 with different diameter specifications for inking. And during the process of being driven by the swing arm 103, the rotation correction transmission device cooperates to operate in a linkage manner, and drives the bracket 104 on the support shaft 109 of the swing arm 103 to perform rotation correction, so that the first chuck 101 on the bracket 104 is rotated and corrected together, so that the position of the first chuck 101 in rolling cooperation with the second chuck 81 remains unchanged, and the position of the rolling contact point of the first chuck 101 (the contact point position in cooperation with the second chuck 81) remains unchanged. The pressure width a will not be affected by replacing the plate cylinder 8 with different diameter specifications, and the pressure width a of the inking roller 102 and the plate cylinder 8 (before replacing the plate cylinder 8) remains the same before and after, making the inking more stable; moreover, the inking roller 102 is driven by the swing arm 103 to move its position without being interfered by other inking rollers 102, and can smoothly reach the position for rolling cooperation with the plate cylinder 8.

[0032] Based on the above embodiments respectively, the following optimizations or further explanations can be made.

[0033] When setting the rotation alignment guiding curve track 116, for each printing plate cylinder 8 with different diameter specifications, there are corresponding preset track points. Connecting these preset track points can form the rotation alignment guiding curve track 116. For example, for a printing plate cylinder 8 with a diameter specification of 100 mm, there is a corresponding preset track point. When the alignment moving part 112 is at this preset track point and the swing arm 103 is in the swung-in position, the inking roller 102 on the support shaft 109 of the swing arm 103 can smoothly lean against the printing plate cylinder 8 with a diameter specification of 100 mm, and the relative positions of the bracket 104 and the first bolster 101 are just in the state after rotation alignment. The position of the rolling contact point of the first bolster 101 smoothly contacts the second bolster 81 (of the printing plate cylinder 8 with a diameter specification of 100 mm). Another example, for a printing plate cylinder 8 with a diameter specification of 110 mm, by the same principle, there is a corresponding preset track point. When the alignment moving part 112 is at this preset track point and the swing arm 103 is in the swung-in position, the inking roller 102 on the support shaft 109 of the swing arm 103 can smoothly lean against the printing plate cylinder 8 with a diameter specification of 110 mm, and the relative positions of the bracket 104 and the first bolster 101 are just in the state after rotation alignment. The position of the rolling contact point of the first bolster 101 smoothly contacts the second bolster 81 (of the printing plate cylinder 8 with a diameter specification of 110 mm). Another example, for a printing plate cylinder 8 with a diameter specification of 120 mm, by the same principle, there is a corresponding preset track point. When the alignment moving part 112 is at this preset track point and the swing arm 103 is in the swung-in position, the inking roller 102 on the support shaft 109 of the swing arm 103 can smoothly lean against the printing plate cylinder 8 with a diameter specification of 120 mm, and the relative positions of the bracket 104 and the first bolster 101 are just in the state after rotation alignment. The position of the rolling contact point of the first bolster 101 smoothly contacts the second bolster 81 (of the printing plate cylinder 8 with a diameter specification of 120 mm). In this way, more printing plate cylinders 8 with different diameter specifications (such as 130 mm, 140 mm, 150 mm...) can be set according to requirements, and corresponding preset track points are set. When the alignment moving part 112 is at the corresponding preset track point and the swing arm 103 is in the swung-in position, the inking roller 102 on the support shaft 109 of the swing arm 103 can smoothly lean against the printing plate cylinder 8 (with a diameter specification corresponding to the corresponding preset track point), and the relative positions of the bracket 104 and the first bolster 101 are just in the state after rotation alignment (i.e., the preset position). The position of the rolling contact point of the first bolster 101 smoothly contacts the second bolster 81 (of the printing plate cylinder 8 with a diameter specification corresponding to the corresponding preset track point).Keep the position where the first impression cylinder 101 and the second impression cylinder 81 are in rolling cooperation unchanged, and keep the position of the rolling cooperation contact point of the first impression cylinder 101 (the contact point position cooperating with the second impression cylinder 81) unchanged, so that the pressure width a will not be affected by replacing the plate cylinder 8 with different diameter specifications. The pressure width a between the inking roller 102 and the plate cylinder 8 (before replacing the plate cylinder 8) remains consistent before and after, making the inking more stable.

[0034] Among them, the alignment moving part 112 cooperates and moves to a preset track point of the rotation alignment guiding curve track 116, and the bracket 104 is rotated to a preset position corresponding to the plate cylinder 8 with a paired diameter specification, that is, the relative positions of the bracket 104 and the first impression cylinder 101 are just in the state after rotation alignment. The rolling cooperation contact point position of the first impression cylinder 101 on the bracket 104 after rotation alignment smoothly contacts the second impression cylinder 81 (of the plate cylinder 8 with the diameter specification paired with the corresponding preset track point). At this corresponding preset position, the rolling cooperation contact point position of the first impression cylinder 101 on the bracket 104 is in place, that is, the rolling cooperation contact point position of the first impression cylinder 101 on the bracket 104 after rotation alignment smoothly contacts the second impression cylinder 81 (of the plate cylinder 8 with the diameter specification paired with the corresponding preset track point).

[0035] For example, the alignment moving part 112 includes rollers or sliders, the rotation alignment guiding curve track 116 includes curve grooves or curve guide rails, the rollers or sliders are arranged on the curve grooves or curve guide rails, and the alignment moving part 112 is movably connected and arranged to move on the rotation alignment guiding curve track 116; the rotation guiding seat 106 is installed and connected to the machine frame 5. Among them, the rotation guiding seat 106 is fixedly installed and connected to the machine frame 5.

[0036] Among them, the swing arm 103 is drivingly connected with a swing driving component 105, and the swing driving component 105 cooperates to drive the swing arm 103 to swing back and forth. The swing driving component 105 can include power sources such as air cylinders or motors. The swing arms 103 can share the swing driving component 105 or can be independently configured respectively. Among them, the oscillating roller 7 and the inking roller 102 are in rolling cooperation for ink transfer. The oscillating roller 7 includes an oscillating roller shaft 71, and an oscillating roller sleeve 6 is provided on the machine frame 5. The oscillating roller shaft 71 is installed and connected in the oscillating roller sleeve 6 for the oscillating roller 7 to operate. In addition, the swing arm 103 is sleeved outside the oscillating roller sleeve 6. In addition, a first eccentric sleeve 108 is provided between the oscillating roller sleeve 6 and the swing arm 103. The first eccentric sleeve 108 is rotationally adjusted. By rotating and adjusting the first eccentric sleeve 108, the cooperation pressure between the inking roller 102 and the oscillating roller 7 can be adjusted to improve the pressure adjustment; for example, after the first eccentric sleeve 108 is rotationally adjusted, it can be locked by a fastener, or the first eccentric sleeve 108 is rotationally adjusted through a worm and gear structure. For example, the surface layer of the inking roller 102 is a rubber inking layer.

[0037] For example, when the bracket 104 is rotatably arranged relative to the support shaft 109, a bearing can be arranged between the bracket 104 and the support shaft 109 so that the bracket 104 can rotate and adjust its position on the support shaft 109. The inking roller 102 and the support shaft 109 are arranged to rotate synchronously on the swing arm 103 or the inking roller 102 is rotatably arranged relative to the support shaft 109. Or for another example, when the bracket 104 and the support shaft 109 are arranged to rotate synchronously on the swing arm 103, the inking roller 102 is rotatably arranged relative to the support shaft 109. In the example shown in the figure, the bracket 104 is rotatably arranged relative to the support shaft 109, the inking roller 102 is rotatably arranged relative to the support shaft 109, a bearing is arranged between the inking roller 102 and the support shaft 109, and an inking roller seat 111 can also be arranged on the support shaft 109 for the installation of the inking roller 102. The bearing 115 can also be arranged on the inking roller seat 111, which is convenient for disassembly and replacement.

[0038] The first impression cylinder 101 is rotatably arranged on the bracket 104 around its central axis so that during the ink transfer process, it can roll against the second impression cylinders 81 at both ends of the plate cylinder 8 for smoother operation.

[0039] Furthermore, for optimization, the first impression cylinder 101 is arranged on the bracket 104 through an axial position adjusting device (or a radial adjusting device), which is a mature technology and can adjust the position of the central axis of the first impression cylinder 101, adjust the relative position of the central axes of the first impression cylinder 101 and the support shaft 109, so as to change the axial distance when the first impression cylinder 101 on the support shaft 109 and the second impression cylinder 81 on the plate cylinder 8 are in nip fit, so as to realize the adjustment of the nip pressure between the inking roller 102 on the support shaft 109 and the cooperating plate cylinder 8, that is, the adjustment of the size of the pressure width a.

[0040] For example, the axis position adjusting device includes a second eccentric sleeve 117, a worm gear 110 and a worm 118. The second eccentric sleeve 117 is sleeved on the support shaft 109 and is rotationally adjusted relative to the support shaft 109. The first bolster 101 is sleeved outside the second eccentric sleeve 117 and is rotationally arranged relative to the second eccentric sleeve 117. By rotating and adjusting the position of the second eccentric sleeve 117, the relative position of the two central axes of the first bolster 101 and the support shaft 109 is adjusted. In addition, the worm gear 110 is sleeved on the support shaft 109 and is rotationally adjusted relative to the support shaft 109. The worm gear 110 is connected to the second eccentric sleeve 117 so that the second eccentric sleeve 117 can be driven to rotate by the worm gear 110. The second eccentric sleeve 117 and the worm gear 110 can be integrally arranged or separately arranged, and can be connected by an integral structure or a separated structure and then reconnected. The worm gear 110 is drivingly connected to the worm 118. The worm 118 is rotationally adjusted on the bracket 104, and the worm 118 drives the worm gear 110 and the second eccentric sleeve 117 to rotate and adjust. The worm 118 and the worm gear 110 have a matching structure, and the operating structure is stable. The relative position is locked after adjustment, and the structure is compact. In addition, a bolster bearing 113 is provided between the first bolster 101 and the second eccentric sleeve 117, making the rolling process of the first bolster 101 smoother. A coupling sleeve 114 is provided on the support shaft 109. The bracket 104 is connected to the coupling sleeve 114. The second eccentric sleeve 117 and the worm gear 110 are sleeved on the coupling sleeve 114, forming an assembly that can be assembled on the support shaft 109 together with the coupling sleeve 114. Even if necessary, the coupling sleeve 114 can be used as a bearing, which can not only rotate and adjust on the support shaft 109, but also make the rotation adjustment of the worm gear 110 and the second eccentric sleeve 117 relative to the support shaft 109 smoother.

Claims

1. The inking mechanism of the plate cylinder (8) includes an inking vibrator roller (7). The front side and / or the rear side of the inking vibrator roller (7) is connected with a support shaft (109) through a swing arm (103). An inking roller (102) is arranged on the support shaft (109). The swing arm (103) is drivingly connected with a swing driving component (105); the inking vibrator roller (7) is in rolling cooperation with the inking roller (102); Brackets (104) are respectively arranged on the left and right sides of the inking roller (102), and the brackets (104) are connected to the support shaft (109); The brackets (104) are relatively rotationally adjusted and arranged on the support shaft (109), or the brackets (104) and the support shaft (109) are synchronously rotationally adjusted and arranged on the swing arm (103); a first cylinder bearer (101) is arranged on the brackets (104), and it is characterized in that: The brackets (104) are drivingly connected with a rotation alignment transmission device, The rotation alignment transmission device includes a rotation guiding seat (106) and a rotation alignment transmission component (107) which are matched with each other, The rotation guiding seat (106) is fixedly installed, and a rotation alignment guiding curve track (116) is arranged on the rotation guiding seat (106), The rotation alignment transmission component (107) is connected to the brackets (104), The rotation alignment transmission component (107) includes an alignment movable part (112) which can move in cooperation with the rotation alignment guiding curve track (116), and the alignment movable part (112) is drivingly connected to the rotation alignment guiding curve track (116); The rotation guiding seat (106) is installed and connected to the machine frame (5).

2. The inking mechanism of the plate cylinder (8) as described in claim 1, characterized in that: Each plate cylinder (8) with different diameter specifications has corresponding preset track points, and the corresponding preset track points are connected and matched to form a rotation alignment guiding curve track (116).

3. The inking mechanism of the plate cylinder (8) according to claim 2, characterized in that: When the alignment movable part (112) moves in cooperation to the preset track point of the rotation alignment guiding curve track (116), the brackets (104) are rotated to the preset position corresponding to the plate cylinder (8) with the corresponding diameter specification, At the corresponding preset position, the position of the rolling cooperation contact point of the first cylinder bearer (101) on the brackets (104) is in place.

4. The inking mechanism of the plate cylinder (8) according to claim 1, characterized in that: The alignment movable part (112) includes a roller or a slider, the rotation alignment guiding curve track (116) includes a curve groove or a curve guide rail, the alignment movable part (112) is connected in cooperation with the rotation alignment guiding curve track (116), and the roller or the slider is arranged on the curve groove or the curve guide rail.

5. The inking mechanism of the plate cylinder (8) according to claim 1, characterized in that: The inking vibrator roller (7) includes an inking vibrator roller shaft (71). A vibrator roller sleeve (6) is arranged on the machine frame (5), the inking vibrator roller shaft (71) is installed and connected in the vibrator roller sleeve (6), and the swing arm (103) is sleeved and connected outside the vibrator roller sleeve (6).

6. The inking mechanism of the plate cylinder (8) according to claim 5, characterized in that: A first eccentric sleeve (108) is further arranged between the vibrator roller sleeve (6) and the swing arm (103), and the first eccentric sleeve (108) is rotationally adjusted; the surface layer of the inking roller (102) is a rubber inking layer; the swing driving component (105) includes a cylinder or a motor.

7. The inking mechanism of the plate cylinder (8) according to claim 1, characterized in that: When the bracket (104) is rotatably arranged relative to the support shaft (109), the inking roller (102) is rotatably arranged synchronously with the support shaft (109) on the swing arm (103) or the inking roller (102) is rotatably arranged relative to the support shaft (109); or, When the bracket (104) and the support shaft (109) are rotatably arranged synchronously on the swing arm (103), the inking roller (102) is rotatably arranged relative to the support shaft (109).

8. The inking mechanism of the plate cylinder (8) according to claim 1, characterized in that: The first cylinder (101) is rotatably arranged on the bracket (104) around its central axis, and the first cylinder (101) is arranged on the bracket (104) through an axial position adjusting device; The axial position adjusting device includes a second eccentric sleeve (117), a worm gear (110) and a worm (118), The second eccentric sleeve (117) is sleeved on the support shaft (109), the second eccentric sleeve (117) is rotatably adjusted relative to the support shaft (109), the first cylinder (101) is sleeved outside the second eccentric sleeve (117), and the first cylinder (101) is rotatably arranged relative to the second eccentric sleeve (117); The worm gear (110) is sleeved on the support shaft (109), the worm gear (110) is rotatably adjusted relative to the support shaft (109), the worm gear (110) is connected to the second eccentric sleeve (117), the second eccentric sleeve (117) and the worm gear (110) are integrally arranged or separately arranged, the worm gear (110) is drivingly connected with a worm (118), and the worm (118) is rotatably adjusted on the bracket (104); A cylinder bearing (113) is arranged between the first cylinder (101) and the second eccentric sleeve (117), a coupling sleeve (114) is arranged on the support shaft (109), the bracket (104) is connected to the coupling sleeve (114), and the second eccentric sleeve (117) and the worm gear (110) are sleeved on the coupling sleeve (114).

9. Printing press, including an offset printing device, the offset printing device having a plate roller shaft for replacing and assembling plate cylinders (8) of different diameter specifications, and second bearing blocks (81) are respectively arranged at two ends of the plate cylinder (8), characterized in that: The offset printing device further includes an inking mechanism for the printing plate cylinder (8) according to any one of claims 1 to 8.

10. The printing press according to claim 9, characterized in that: The second cylinder (81) is in rolling cooperation with the first cylinder (101), and the rolling contact point positions of the second cylinder (81) and the first cylinder (101) are in corresponding contact; the second cylinder (81) corresponds to and matches the diameter specification of the printing plate cylinder (8).

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