Inking mechanism of plate cylinder and printing machine

Abstract

According to the inking mechanism of the plate cylinder and the printing machine, an ink channeling roller is connected with a supporting shaft through a swing arm, an inking roller is arranged on the supporting shaft, and supports on the two sides of the inking roller are connected to the supporting shaft; the bracket is rotationally adjusted; a first cylinder pillow is arranged on the support, the rotary position-correcting transmission device connected with the support comprises a rotary guide seat and a rotary position-correcting transmission part which are matched with each other, a rotary position-correcting guide curve track is arranged on the rotary guide seat, and the rotary position-correcting transmission part comprises a position-correcting movable part which can move along the rotary position-correcting guide curve track in a matched mode. In the driving process of the swing arm, the rotary position correcting transmission device is in linkage operation in a matched mode and drives the support to rotate for position correction in a matched mode, so that the first cylinder bearers on the support rotate for position correction together, the positions of rolling matching contact points of the first cylinder bearers are kept unchanged, and the pressure width cannot be affected by replacement of plate cylinders of different diameter specifications; the pressure width of the inking roller is consistent with the pressure width of the plate cylinder, so that inking is more stable.

Description

Technical Field

[0001] The utility model relates to a printing press, in particular to an inking mechanism and a printing press. Background Art

[0002] In the printing equipment, the plate cylinder, transfer cylinder and impression cylinder cooperate with each other for printing. The plate cylinder and transfer cylinder of different outer diameters can be replaced to meet the requirements of continuous printing, and the web does not need to be retracted. In order to enable the inking mechanism to meet the requirements of the plate cylinder (i.e., plate cylinder) of different outer diameters after replacement, the inking roller is connected to the ink roller through a swing arm, and the position of the inking roller is adjusted by swinging the swing arm so that the inking roller can cooperate with the plate cylinder of changed size. In order to stabilize the pressure when the plate cylinder and the inking roller cooperate, the rollers arranged at both ends of the inking roller correspond to the rollers arranged at both ends of the plate cylinder.

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

[0004] To this end, in the inking mechanism of the plate cylinder of the CN110001187A offset printing equipment and the printing press, the inking roller and the second inking roller are adjusted to cooperate with the plate cylinders of different sizes to transfer ink through the swing of the swing arm and the second swing arm; and when the size of the plate cylinder changes, the pull arm, the second pull arm, the swing arm and the second swing arm cooperate with each other so that the position of the matching point between the roller pillow corresponding to the inking roller and the second inking roller, the second roller pillow and the roller pillows on both sides of the plate cylinder changes less, the pressure change of the inking roller, the second inking roller and the plate cylinder is smaller and more stable, avoiding Affects the printing quality and effect; however, the position of the matching point still has a small change (the matching contact point position has a small deviation), and the matching pressure still has a small change. For a higher quality printing process, there are still shortcomings; in addition, the swing arm is pulled by the second pulling arm and connected to the second bracket on the second swing arm, and the second swing arm is pulled by the pulling arm and connected to the bracket of the swing arm, which is prone to mutual interference and mutual restriction. When one of the swing arms is driven into place (such as a cylinder, etc.), the other swing arm may not be able to be smoothly put into place, resulting in a large change in the pressure between the inking roller and the printing plate cylinder on one of the swing arms. Utility Model Content

[0005] In view of the technical problems existing in the background technology, the technical problem solved by the utility model is to provide an optional inking mechanism and printing machine for a plate cylinder that is different from the prior art, and wherein when the size of the plate cylinder changes, the inking roller and the plate cylinder can be matched with each other and the matching pressure hardly changes (the front and back are almost the same, and the pressure width of the inking roller and the plate cylinder is consistent front and back), and the inking roller can operate independently without being affected by other inking rollers.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions: the inking mechanism of the printing plate cylinder includes an inking roller, the front side and / or the rear side of the inking roller is connected to a support shaft through a swing arm, an inking roller is arranged on the support shaft, and 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 rotatably adjusted on the support shaft, or the brackets and the support shaft are synchronously rotatably adjusted on the swing arm; a first roller is arranged on the bracket, which is characterized in that: the bracket is transmission-connected with a rotation correction transmission device, the rotation correction transmission device includes a matching rotation guide seat and a rotation correction transmission component, the rotation guide seat is fixedly installed, the rotation guide seat is provided with a rotation correction guide curve track, the rotation correction transmission component is connected to the bracket, the rotation correction transmission component includes a correction movable part that can move along the rotation correction guide curve track, and the correction movable part is transmission-connected to the rotation correction guide curve track.

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

[0008] For example, printing plate cylinders of different diameters have matched preset track points, and the preset track points are connected and matched to form a rotation correction guide curve track.

[0009] After further optimization, the positioning correcting movable part cooperates to move to the preset track point of the rotating positioning correcting guide curve track, and the bracket is rotated to a preset position corresponding to the matching diameter specification of the printing plate cylinder. At this corresponding preset position, the rolling matching contact point position of the first roller on the bracket is in place.

[0010] For another example, the correcting movable part includes a roller or a slider, the rotating correcting guide curved track includes a curved groove or a curved guide rail, the correcting movable part is cooperatively connected to the rotating correcting guide curved track, the roller or slider is configured on the curved groove or the curved guide rail; the rotating guide seat is installed and connected to the frame.

[0011] In addition, the swing arm transmission is connected with a swing driving component; the ink-stirring roller and the inking roller are matched with each other; the ink-stirring roller includes a stray roller shaft, a stray roller sleeve is provided on the frame, the stray roller shaft is installed and connected in the stray roller sleeve, and the swing arm connecting sleeve is arranged outside the stray roller 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 cylinders of different diameters, and second rollers are respectively arranged at both ends of the plate cylinder. The feature is that the offset printing device also includes an inking mechanism for the plate cylinder.

[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 effect of the utility model is that 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 the 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 that drives the swing arm to perform 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 the plate cylinders of different diameters. 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 moved into place to cooperate with the plate cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a structural schematic diagram of the utility model from another perspective.

[0022] Figure 3 It is a schematic structural diagram of an embodiment of the utility model, wherein the printing plate cylinder is relatively small.

[0023] Figure 4 It is a schematic structural diagram of another embodiment of the utility model, in which the printing plate cylinder is larger.

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

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the implementation of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field without making creative work based on the embodiments of the utility model are within the scope of protection of the utility model.

[0026] Referring to the accompanying drawings, the inking mechanism of the plate cylinder 8 in the embodiment of the present embodiment includes an inking roller 7, the front side and / or the rear side of the inking roller 7 is connected to a support shaft 109 through a swing arm 103, and the front side and the rear side of each inking roller 7 in the figure are connected to a support shaft 109 through a swing arm 103, and the plate cylinder 8 can be equipped with one or more (such as two, three, etc.) inking rollers 7, wherein an inking roller 102 is arranged on the support shaft 109, and the swing arm 103 swings to adjust the position so that the corresponding inking roller 102 cooperates with the plate cylinder 8 of different diameter specifications to roll ink. The printing press includes an offset printing device, and the offset printing device will include the inking mechanism. In addition, the offset printing device has a plate roller shaft for replacing and assembling plate cylinders 8 of different diameter specifications, and plate cylinders 8 of different sizes and diameter specifications will be installed on the plate roller shaft.

[0027] Among them, 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 bracket 104 is relatively rotatably adjusted on the support shaft 109 (as shown in the figure), and a bearing can be provided between the bracket 104 and the support shaft 109 so that the bracket 104 can be smoothly rotated and adjusted on the support shaft 109; or, the bracket 104 and the support shaft 109 are synchronously rotated and adjusted on the swing arm 103 (not shown in the figure). A first roller 101 (or first roller) is provided on the bracket 104, and a second roller 81 (or second roller) is provided at both ends of the plate cylinder 8. The second roller 81 corresponds to the diameter specification of the plate cylinder 8, and the second roller 81 will change specifications together with the plate cylinder 8; when the inking roller 102, the bracket 104 and the first roller 101 on the support shaft 109 swing toward the plate cylinder 8 with the swing arm 103, the first roller 101 and the second roller 81 will roll with each other, and the second roller 81 will rotate with the swing arm 103. The rolling matching contact point of the first roller 101 is in contact for rolling matching, and the inking roller 102 and the plate cylinder 8 will also be rolling matching, wherein the inking roller 102 will have a certain amount of compression, 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). When the first roller 101 and the second roller 81 maintain rolling matching, the pressure width a of the plate cylinder 8 and the inking roller 102 of the same diameter specification remains unchanged and the size remains consistent. However, after replacing the plate cylinder 8 with a different size and diameter, the first roller 101 follows the swing arm 103 to approach the second roller 81 again for rolling cooperation. The original rolling cooperation contact point position of the first roller 101 is different from the current rolling cooperation contact point position (after replacing the plate cylinder 8 with a different diameter), and the position is deviated, that is, the rolling cooperation position of the first roller 101 and the second roller 81 is deviated, resulting in a change in the compression amount of the inking roller 102 after replacing the plate cylinder 8, which is inconsistent with that before replacement. The pressure width a of 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 the pressure width a (same as before the plate cylinder 8 is replaced) between the inking roller 102 and the plate cylinder 8 remains consistent after replacing the plate cylinder 8 of different specifications, and the pressure of the rolling cooperation between the inking roller 102 and the plate cylinder 8 remains consistent, so as to make the inking more stable, in the utility model, the bracket 104 is connected to the transmission with a rotation correction transmission device. When the swing arm 103 swings (towards the plate cylinder 8), the rotation correction transmission device cooperates to drive the bracket 104 to rotate and correct on the support shaft 109, and the first roller 101 will rotate and correct with the bracket 104, so that the rolling cooperation position of the first roller 101 and the second roller 81 remains unchanged, that is, the rolling cooperation contact point position of the first roller 101 (the contact point position with the second roller 81) remains unchanged, and the pressure width a change will not be affected by replacing the plate cylinder 8 of different diameter specifications.

[0029] Among them, the rotation correction transmission device includes a matching rotation correction transmission component 107 and a rotation guide seat 106, the rotation guide seat 106 is fixedly installed, and a rotation correction guide curve track 116 is provided on the rotation guide seat 106. The rotation correction transmission component 107 (a transmission rod is used in the figure) is connected to the bracket 104, and the rotation correction transmission component 107 will cooperate to drive the bracket 104 to rotate and correct. The rotation correction transmission component 107 includes a correction movable part 112, and the correction movable part 112 can move along the rotation correction guide curve track 116. The correction movable part 112 is transmission-connected to the rotation correction guide curve track 116. When the correction movable part 112 moves on the rotation correction guide curve track 116, it can cooperate to drive the rotation correction transmission component 107 to move, thereby driving the bracket 104 to rotate and correct on the support shaft 109 of the swing arm 103. When the rotational position correction transmission device cooperates in operation, it cooperates with the swing of the swing arm 103, and the swing arm 103 provides power. The swing of the swing arm 103 drives the support shaft 109 to move, and the support shaft 109 moves with the swing arm 103. The positioning movable part 112 of the rotational position correction transmission component 107 on the bracket 104 on the support shaft 109 will cooperate and move on the rotational position correction guide curve track 116, and cooperate to drive the transmission position correction transmission component to move, thereby driving the bracket 104 to rotationally correct the position on the support shaft 109 of the swing arm 103; during the swinging process of the swing arm 103, the positioning movable part 112 of the rotational position correction transmission component 107 follows the movement, and the positioning movable part 112 follows and moves on the rotational position correction guide curve track 116, and cooperates to achieve rotational correction.

[0030] Its working principle is: the position of the inking roller 102 on the corresponding support shaft 109 is changed by swinging the swing arm 103, so that the inking roller 102 can smoothly adapt to the printing plate cylinder 8 of different diameters and specifications for inking; and, in the process of the swing arm 103 swinging into position, the rotation correction transmission device cooperates to drive the bracket 104 on the support shaft 109 of the swing arm 103 to rotate and correct the position, so that the first roller 101 on the bracket 104 is rotated and corrected for position adjustment. Through the rotation correction, the rolling matching position of the first roller 101 and the second roller 81 remains unchanged, and the rolling matching contact point position of the first roller 101 (the contact point position with the second roller 81) remains unchanged, and the pressure width a will not be affected by replacing the printing plate cylinder 8 with different diameters and 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 the position, and can be adapted to the plate cylinders 8 of different diameters for inking. In the process of the swing arm 103 driving, the rotation correction transmission device cooperates with the linkage operation to cooperate with the bracket 104 on the support shaft 109 of the swing arm 103 to rotate and correct the position, so that the first roller 101 on the bracket 104 is rotated and corrected together, so that the position of the first roller 101 and the second roller 81 for rolling cooperation remains unchanged, and the rolling cooperation contact point position of the first roller 101 (the contact point position of the cooperation with the second roller 81) remains unchanged, and the pressure width a will not be affected by replacing the plate cylinders 8 of different diameters. The pressure width a of the inking roller 102 and the plate cylinder 8 (same as before the replacement of the plate cylinder 8) is consistent front and back, so that the inking is more stable; and the inking roller 102 is driven by the swing arm 103 to move the position without interference from other inking rollers 102, and can smoothly reach the position to cooperate with the plate cylinder 8.

[0032] The following optimization or further explanation may be performed based on the above embodiments.

[0033] When setting the rotational correction guide curve track 116, the preset track points of the printing plate cylinders 8 of different diameters can be matched to form the rotational correction guide curve track 116. For example, the printing plate cylinder 8 of 100 mm diameter has a preset track point of the matching. When the correction movable part 112 is at the preset track point and the swing arm 103 is in the swing position, the inking roller 102 on the support shaft 109 of the swing arm 103 can be smoothly placed against the printing plate cylinder 8 of 100 mm diameter, and the relative positions of the bracket 104 and the first roller pillow 101 are just in the rotational correction state, and the rolling matching contact point of the first roller pillow 101 is in smooth contact with the second roller pillow 81 (of the printing plate cylinder 8 of 100 mm diameter). For another example, the printing plate cylinder 8 with a diameter of 110 mm, based on the same principle, has a matching preset track point. When the positioning movable part 112 is at the preset track point and the swing arm 103 is swung into position, the inking roller 102 on the support shaft 109 of the swing arm 103 can be smoothly placed against the printing plate cylinder 8 with a diameter of 110 mm, and the relative positions of the bracket 104 and the first roller 101 are just in the state after rotation and positioning, and the rolling matching contact point of the first roller 101 is in smooth contact with the second roller 81 (of the printing plate cylinder 8 with a diameter of 110 mm). For another example, the printing plate cylinder 8 with a diameter of 120 mm has a matching preset track point based on the same principle. When the positioning movable part 112 is at the preset track point and the swing arm 103 is swung into position, the inking roller 102 on the support shaft 109 of the swing arm 103 can be smoothly placed against the printing plate cylinder 8 with a diameter of 120 mm, and the relative positions of the bracket 104 and the first roller 101 are just in the state after rotation and positioning, and the rolling matching contact point of the first roller 101 is in smooth contact with the second roller 81 (of the printing plate cylinder 8 with a diameter of 120 mm). In this way, more specifications (such as 130 mm, 140 mm, 150 mm...) of diameter specifications of the plate cylinder 8 can be set according to needs, and matching preset track points can be set. When the positioning movable part 112 is at the corresponding preset track point and the swing arm 103 is swung into place, the inking roller 102 on the support shaft 109 of the swing arm 103 can be smoothly placed against the plate cylinder 8 (of the diameter specification matched with the corresponding preset track point), and the relative positions of the bracket 104 and the first roller 101 are just in the state after rotation and positioning (that is, the preset position), and the rolling matching contact point position of the first roller 101 is in smooth contact with the second roller 81 (of the plate cylinder 8 of the diameter specification matched with the corresponding preset track point).The rolling matching position of the first roller 101 and the second roller 81 remains unchanged, and the rolling matching contact point position of the first roller 101 (the contact point position with the second roller 81) remains unchanged. The pressure width a will not be affected by replacing the plate cylinder 8 with different diameters. The pressure width a of the inking roller 102 and the plate cylinder 8 (same as before the plate cylinder 8 is replaced) remains consistent front to back, making the inking more stable.

[0034] Among them, the positioning movable part 112 cooperates to move to the preset track point of the rotation positioning guide curve track 116, and the bracket 104 is rotated to the preset position corresponding to the matching diameter specification of the plate cylinder 8, that is, the relative position of the bracket 104 and the first roller 101 is just in the state after the rotation positioning, and the rolling matching contact point position of the first roller 101 on the bracket 104 after the rotation positioning is smoothly in contact with the second roller 81 (of the plate cylinder 8 with the matching diameter specification of the corresponding preset track point). At the corresponding preset position, the rolling matching contact point position of the first roller 101 on the bracket 104 is in place, that is, the rolling matching contact point position of the first roller 101 on the bracket 104 after the rotation positioning is smoothly in contact with the second roller 81 (of the plate cylinder 8 with the matching diameter specification of the corresponding preset track point).

[0035] For example, the position-correcting movable member 112 includes a roller or a slider, the rotation position-correcting guide curved track 116 includes a curved groove or a curved guide rail, the roller or the slider is arranged on the curved groove or the curved guide rail, the position-correcting movable member 112 is connected and moved on the rotation position-correcting guide curved track 116, and the rotation guide seat 106 is installed and connected to the frame 5. The rotation guide seat 106 is installed and connected to the frame 5 for fixing.

[0036] The swing arm 103 is connected to a swing driving component 105, and the swing driving component 105 drives the swing arm 103 to swing back and forth. The swing driving component 105 may include a power source such as a cylinder or a motor. The swing arm 103 and the swing arm 103 may share the swing driving component 105, or they may be configured independently. The ink-stirring roller 7 and the inking roller 102 cooperate to transfer ink. The ink-stirring roller 7 includes a roller shaft 71, and a roller sleeve 6 is provided on the frame 5. The roller shaft 71 is installed and connected in the roller sleeve 6 to facilitate the operation of the ink-stirring roller 7. In addition, the swing arm 103 connection sleeve is provided outside the roller sleeve 6. In addition, a first eccentric sleeve 108 is provided between the 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 matching pressure between the ink roller 102 and the ink roller 7 can be adjusted to improve the pressure adjustment; for example, the first eccentric sleeve 108 can be rotated and adjusted and then locked by a fastener, or the first eccentric sleeve 108 can be rotated and adjusted through a worm gear structure. For example, the surface layer of the ink roller 102 is a rubber ink layer.

[0037] For example, when the bracket 104 is relatively rotatably arranged on 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 the position on the support shaft 109, and the ink roller 102 and the support shaft 109 are synchronously rotatably arranged on the swing arm 103 or the ink roller 102 is relatively rotatably arranged on the support shaft 109. Or for example, when the bracket 104 and the support shaft 109 are synchronously rotatably arranged on the swing arm 103, the ink roller 102 is relatively rotatably arranged on the support shaft 109. For example, in the figure, the bracket 104 is relatively rotatably arranged on the support shaft 109, the ink roller 102 is relatively rotatably arranged on the support shaft 109, a bearing is arranged between the ink roller 102 and the support shaft 109, and an ink roller seat 111 can also be arranged on the support shaft 109 for the ink roller 102 to be installed, and a bearing 115 can also be arranged on the ink roller seat 111 for easy disassembly and replacement.

[0038] The first roller 101 is rotatably arranged on the bracket 104 around its central axis, so that during the ink transfer process, it can cooperate with the second rollers 81 at both ends of the plate cylinder 8 to roll against each other, thereby running more smoothly.

[0039] In addition, it is optimized that the first roller 101 is set on the bracket 104 through an axis position adjustment device (or called a radial adjustment device), which is a mature technology. It can adjust the central axis position of the first roller 101, and adjust the relative position of the two central axes of the first roller 101 and the support shaft 109, so as to change the axial center distance when the first roller 101 on the support shaft 109 and the second roller 81 on the plate cylinder 8 are press-fitted, so as to realize the adjustment of the matching pressure between the inking roller 102 on the support shaft 109 and the matching plate cylinder 8, that is, the adjustment of the pressure width a.

[0040] For example, the axis position adjustment device includes a second eccentric sleeve 117, a worm gear 110 and a worm 118. The second eccentric sleeve 117 is connected and sleeved on the support shaft 109. The second eccentric sleeve 117 is rotatably adjusted relative to the support shaft 109. The first roller 101 is sleeved outside the second eccentric sleeve 117. The first roller 101 is rotatably 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 roller 101 and the support shaft 109 is adjusted. In addition, the worm gear 110 is sleeved on the support shaft 109. The worm gear 110 is relative to the support shaft 109. 09 Rotation adjustment setting, the worm wheel 110 is connected to the second eccentric sleeve 117 so that the worm wheel 110 drives the second eccentric sleeve 117 to rotate. The second eccentric sleeve 117 and the worm wheel 110 are set in one piece or in a split piece. They can be connected in an integrated structure or in a split structure. The worm wheel 110 is connected to the worm 118 in a transmission manner. The worm 118 is set on the bracket 104 for rotation adjustment. The worm 118 drives the worm wheel 110 and the second eccentric sleeve 117 to rotate and adjust. The worm 118 and the worm wheel 110 cooperate with each other, and the operating structure is stable. After adjustment, the relative position remains locked and the structure is compact. In addition, a roller bearing 113 is provided between the first roller 101 and the second eccentric sleeve 117, so that the first roller 101 can roll more smoothly during the rolling process. A connecting sleeve 114 is provided on the support shaft 109, the bracket 104 is connected to the connecting sleeve 114, the second eccentric sleeve 117 and the worm gear 110 are sleeved on the connecting sleeve 114, forming an assembly that can be assembled on the support shaft 109 together with the connecting sleeve 114. If necessary, the connecting sleeve 114 can even be used as a bearing, which can not only enable the support shaft 109 to be rotated and adjusted, but also allow the worm gear 110 and the second eccentric sleeve 117 to rotate and adjust relative to the support shaft 109 more smoothly.

Claims

1. An inking mechanism for a printing plate cylinder, comprising an inking roller (7), wherein the front side and / or the rear side of the inking roller (7) is connected to a support shaft (109) via a swing arm (103), and an inking roller (102) is arranged on the support shaft (109). A bracket (104) is provided on the left and right sides of the inking roller (102), respectively, and the bracket (104) is connected to a support shaft (109); The bracket (104) is relatively rotatably adjusted on the support shaft (109), or the bracket (104) and the support shaft (109) are synchronously rotatably adjusted on the swing arm (103); a first roller (101) is provided on the bracket (104), characterized in that: The bracket (104) is connected to the rotating position correcting transmission device. The rotational position correcting transmission device comprises a matching rotational guide seat (106) and a rotational position correcting transmission component (107). The rotating guide seat (106) is fixedly installed, and a rotating position correction guide curved track (116) is provided on the rotating guide seat (106). The rotational position correction transmission component (107) is connected to the bracket (104). The rotational position correction transmission component (107) comprises a position correction movable member (112) capable of moving along the rotational position correction guide curved track (116). The position correction movable member (112) is drivingly connected to the rotational position correction guide curved track (116).

2. The inking mechanism of the plate cylinder according to claim 1, characterized in that: Each printing plate cylinder (8) of different diameter specifications has a matched set of preset track points, and each of the preset track points is connected and matched to form a rotation correction guide curved track (116).

3. The inking mechanism of the plate cylinder according to claim 2, characterized in that: The positioning movable member (112) cooperates to move to a preset track point of the rotation positioning guide curved track (116), and the bracket (104) is rotated to a preset position corresponding to the matching plate cylinder (8) of the diameter specification. At the corresponding preset position, the rolling matching contact point position of the first roller pillow (101) on the bracket (104) is in place.

4. The inking mechanism of the printing plate cylinder according to claim 1, characterized in that: The positioning correcting movable member (112) includes a roller or a slider, the rotating positioning correcting guide curved track (116) includes a curved groove or a curved guide rail, the positioning correcting movable member (112) is matched and connected to the rotating positioning correcting guide curved track (116), and the roller or the slider is arranged on the curved groove or the curved guide rail; the rotating guide seat (106) is installed and connected to the frame (5).

5. The inking mechanism of the plate cylinder according to claim 1, characterized in that: The swing arm (103) is transmission-connected with a swing driving component (105); the ink-stirring roller (7) and the inking roller (102) are rolling-matched; the ink-stirring roller (7) comprises a stray roller shaft (71); a stray roller sleeve (6) is provided on the frame (5); the stray roller shaft (71) is installed and connected in the stray roller sleeve (6); and the swing arm (103) connecting sleeve is arranged outside the stray roller sleeve (6).

6. The inking mechanism of the printing plate cylinder as claimed in claim 5, characterized in that: A first eccentric sleeve (108) is further provided between the shifting roller sleeve (6) and the swing arm (103), and the first eccentric sleeve (108) is rotatably adjustable; the surface layer of the inking roller (102) is a rubber inking layer; and the swing driving component (105) includes a cylinder or a motor.

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

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

9. A printing press, comprising an offset printing device, the offset printing device having a plate roller for replacing and assembling a plate cylinder (8) of different diameters, a second roller (81) being respectively arranged at both ends of the plate cylinder (8), characterized in that: The offset printing device further comprises an inking mechanism for the plate cylinder (8) as claimed in any one of claims 1 to 8.

10. The printing press according to claim 9, characterized in that: The second roller (81) and the first roller (101) are rolling matched, and the rolling matching contact points of the second roller (81) and the first roller (101) are in corresponding contact; the diameter specifications of the second roller (81) and the printing plate cylinder (8) are correspondingly matched.

Images