CN110497693B - Ink pressure regulating method based on plate leaning roller of replaceable drum type rotary offset press - Google Patents
Ink pressure regulating method based on plate leaning roller of replaceable drum type rotary offset press Download PDFInfo
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- CN110497693B CN110497693B CN201810467028.4A CN201810467028A CN110497693B CN 110497693 B CN110497693 B CN 110497693B CN 201810467028 A CN201810467028 A CN 201810467028A CN 110497693 B CN110497693 B CN 110497693B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F7/00—Rotary lithographic machines
- B41F7/20—Details
- B41F7/24—Damping devices
- B41F7/40—Devices for tripping or lifting damping rollers; Supporting, adjusting, or removing arrangements therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
- B41F31/14—Applications of messenger or other moving transfer rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
- B41F31/32—Lifting or adjusting devices
- B41F31/34—Cam, eccentric, wedge, or like devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to a plate-leaning roller ink pressure adjusting method based on a replaceable drum-type rotary offset press, wherein an ink pressure adjusting mechanism of each plate-leaning roller consists of two sets of symmetrically installed plate-leaning roller driving cylinders, driving swing rods, cylinder fixing mandrels, cylinder joints, pressure adjusting eccentric rings between a cluster roller and the plate-leaning roller, plate-leaning rollers, pressure adjusting eccentric rings between the plate-leaning roller and a plate cylinder and a fixed support, and the plate-leaning roller is arranged on corresponding driving swing rods on two sides through a pair of pressure adjusting eccentric rings between the cluster roller and the plate-leaning roller; the pressure regulating eccentric rings between the two plate leaning rollers and the plate cylinder are respectively arranged in the inner holes of the corresponding plate leaning rollers at the two sides of each plate leaning roller. According to the invention, the plate roller driving cylinder and the driving swing rod drive the plate roller to rise and fall to perform water and ink separation or water and ink application; the eccentric angle positions of the pressure adjusting eccentric ring between the two side tandem rollers and the plate leaning roller and the pressure adjusting eccentric ring between the plate leaning roller and the plate cylinder are adjusted in a rotating way, so that the ink pressure is adjusted.
Description
Technical Field
The invention relates to the technical field of rotary offset presses, in particular to a plate roller ink pressure adjustment technology of a replaceable drum type rotary offset press, which provides a plate roller ink pressure adjustment mode with simple and convenient adjustment operation and stable and reliable quality for the replaceable drum type rotary offset press.
Background
The rotary offset press uses the principle that the ink and water are not compatible to finish the ink transfer, the blank part of the printing plate is hydrophilic and oleophobic, the image-text part of the printing plate is oleophilic and hydrophobic, the dampening roller of the dampening device is used for applying water to the printing plate first during printing, then the inking roller of the inking device is used for applying ink to the printing plate, and if the water and ink on the printing plate reach the water and ink balance, the ink can be transferred more ideally, thereby realizing the printing effects of clear image-text, rich image layers, bright and saturated color, clean and tidy blank part of the printing product, and the like. The replaceable drum type rotary offset press is used for inking water by the plate roller, whether the ink pressure is stable and consistent or not and the printing quality have important correlation, so that how to adjust the ink pressure by the plate roller is a technical problem to be solved urgently.
Disclosure of Invention
In order to enable the replaceable drum type rotary offset press to better adjust the ink pressure of the plate leaning roller, the invention provides a plate leaning roller ink pressure adjusting mechanism based on the replaceable drum type rotary offset press, and provides a plate leaning roller ink pressure adjusting method which is simple and convenient to adjust and has stable and reliable quality.
The invention is realized by the following technical scheme. The ink pressure regulating mechanism of the plate leaning roller based on the replaceable drum type rotary offset press is characterized in that each ink pressure regulating mechanism of the plate leaning roller consists of two sets of symmetrically installed plate leaning roller driving cylinders, driving swing rods, cylinder fixing mandrels, cylinder joints, pressure regulating eccentric rings between the plate leaning rollers, pressure regulating eccentric rings between the plate leaning rollers and the plate cylinder and fixing supports, the two fixing supports are respectively installed on frame wallboards on the two sides, the two fixing supports fix the plate leaning rollers, the two driving swing rods are all installed on the corresponding fixing supports, the fixed ends of the plate leaning roller driving cylinders are installed and fixed on the frame wallboards through the cylinder fixing mandrels, and the movable ends of the plate leaning roller driving cylinders are connected on the driving swing rods through the corresponding cylinder joints; the plate leaning roller is arranged on the corresponding driving swing rods at the two sides through a pair of pressure adjusting eccentric rings between the stringing roller and the plate leaning roller; the pressure regulating eccentric rings between the two plate leaning rollers and the plate cylinder are respectively arranged in the inner holes of the corresponding plate leaning rollers at the two sides of each plate leaning roller.
Further preferably, a locking screw is arranged on the driving swing rod.
Further preferably, a set screw is arranged on the pressure adjusting eccentric ring between the plate leaning roller and the plate cylinder.
The invention also provides a plate roller ink pressure adjusting method based on the replaceable drum type rotary offset press, which is operated according to the following method based on the plate roller ink pressure adjusting mechanism:
under the driving of each plate-leaning roller driving cylinder, driving the swing rod to rotate around the fixed support and driving the corresponding plate-leaning roller to rise and fall on the swing rod to carry out water-leaving and ink-leaving or water-inking work; the eccentric angle position of the eccentric ring is adjusted by rotating and adjusting the pressure between the two side cluster rollers and the corresponding plate leaning roller, so that the center distance between the cluster rollers and the corresponding plate leaning roller can be changed, namely, the pressure between the cluster rollers and the corresponding plate leaning roller is adjusted, the pressure between the two rollers is increased when the center distance is reduced, and otherwise, the pressure between the two rollers is reduced when the center distance is increased; after the pressure between the tandem roller and the corresponding plate leaning roller is adjusted, locking screws on driving swing rods at two sides are locked, and the eccentric angle positions of eccentric rings at two sides are adjusted, so that the pressure between the tandem roller and the corresponding plate leaning roller is ensured to be stable and unchanged.
In the working process, the telescopic action of the corresponding plate roller driving cylinders on two sides and the swinging action of the driving swing rod are required to be synchronous and consistent; when the pressure between the tandem roller and each plate-leaning roller is regulated, the regulating rotation angles of the regulating eccentric rings at the two sides are required to be correspondingly consistent, so that the parallel connection of each plate-leaning roller and the tandem roller is ensured, and the consistency of the pressure at the two sides of each plate-leaning roller is ensured; when the plate leaning rollers separate from water and ink or water and land on the ink, the pressure between the serial roller and the plate leaning rollers is not changed.
During printing, each plate leaning roller is tightly pressed against the surface of a printing plate on the printing plate cylinder under the pneumatic driving and controlling actions of a corresponding plate leaning roller driving cylinder, a driving swing rod and the like, and the plate leaning rollers on two sides of each plate leaning roller are tightly pressed against the outer circle surface of a rolling pillow on the printing plate cylinder; the eccentric angle position of the eccentric ring is adjusted by rotating and adjusting the pressure between the plate leaning roller and the plate cylinder at the inner holes of the plate leaning rollers at the two sides, namely, the center distance between the plate leaning roller and the rolling pillow on the plate cylinder can be changed, so that the pressure between the plate leaning roller and the plate on the plate cylinder is adjusted and changed correspondingly, the pressure between the plate leaning roller and the plate becomes larger when the center distance is smaller, and otherwise, the pressure between the plate leaning roller and the plate becomes smaller when the center distance is larger; after the pressure between the plate leaning roller and the printing plate is adjusted, the eccentric angle position of the pressure adjusting eccentric ring between the plate leaning roller and the printing plate cylinder at the two sides is fixed and unchanged after the set screw on the pressure adjusting eccentric ring between the plate leaning roller and the printing plate cylinder at the two sides is locked, and the center distance between the plate leaning roller and the rolling pillow on the printing plate cylinder is also fixed and unchanged during the inking printing, thereby ensuring that the inking printing pressure between the plate leaning rollers and the printing plate on the printing plate cylinder is constant and stable; when the pressure is regulated, the corresponding consistency of the regulating rotation angles of the pressure regulating eccentric rings between the plate leaning rollers and the plate cylinder at the two sides is also required to be ensured, so that the parallel of the plate leaning rollers and the plate cylinder is ensured, and the consistency of the inking printing pressure of the water at the two sides between the plate leaning rollers and the printing plate is ensured; when the printing is performed, each plate leaning roller can uniformly and stably ink the surface of the printing plate on the plate cylinder under the action of the inking printing pressure.
THE ADVANTAGES OF THE PRESENT INVENTION
(1) The application range is wide, and the adjustment requirement of the printing plate cylinders with different diameters on the replaceable drum type rotary offset press on the ink printing pressure of each plate leaning roller can be met.
(2) The operation space for replacing the roller is large. The lifting swing range of each plate leaning roller is large, and each plate leaning roller can retract into a wallboard of the frame when water is separated from ink, so that a large operation space is reserved for conveniently replacing various rollers.
(3) The accuracy of adjusting the ink printing pressure of each plate leaning roller is high, and the pressure is stable and reliable after locking.
(4) The ink printing pressure adjustment operation of each plate roller is quick, simple and convenient.
(5) Simple structure and low manufacturing cost.
Drawings
Fig. 1 is a schematic structural view of a plate roller ink pressure adjusting mechanism according to the present invention.
Fig. 2 is a diagram showing the working positions of the plate roller, the plate roller driving cylinder, the driving swing rod and the like when the plate roller ink pressure adjusting mechanism is in a printing working state (i.e. ink applying water).
FIG. 3 is a diagram showing the positions of the plate roller, the plate roller driving cylinder, the driving swing rod and the like when the plate roller ink pressure adjusting mechanism is in a non-working state (namely, the ink is separated from water).
In the figure: 1-a frame wallboard; 2, driving a cylinder by a plate roller; 3, stringing rollers; 4-a cylinder joint; 5, driving a swing rod; 6, locking a screw; 7-inking roller I; 8-plate cylinder; 9-inking roller II; 10, a dampening roller; 11-cylinder fixing mandrel; 12-pressure adjusting eccentric ring between the tandem roller and the plate leaning roller; 13-set screw; 14-plate leaning roller; 15-adjusting the eccentric ring by the pressure between the plate roller and the plate cylinder; 16-a bolster on the plate cylinder; 17-a fixed support.
Detailed Description
The invention is further elucidated in detail below in connection with the accompanying drawings.
FIG. 1 is a specific structural diagram of a plate roller ink pressure adjusting mechanism. The ink pressure adjusting mechanism of each plate leaning roller (an inking roller I7, an inking roller II 9 and a dampening roller 10) consists of two sets of symmetrically installed plate leaning roller driving air cylinders 2, driving swing rods 5, an air cylinder fixing mandrel 11, an air cylinder joint 4, a pressure adjusting eccentric ring 12 between a cluster roller and the plate leaning roller, a plate leaning roller 14, a pressure adjusting eccentric ring 15 between the plate leaning roller and a plate cylinder, a fixed support 17 and the like. The two ends of the tandem roller 3 are respectively connected with fixed supports 17 arranged on the frame wallboards 1 on the left side and the right side, each driving swing rod 5 in the figures 1-3 is arranged on the fixed support 17 of the corresponding tandem roller 3, the fixed end of the plate roller driving cylinder 2 is arranged and fixed on the frame wallboards 1 through a cylinder fixing mandrel 11, and the movable end of the plate roller driving cylinder 2 is connected with the driving swing rod 5 through a corresponding cylinder joint 4; each plate leaning roller (an inking roller I7, an inking roller II 9 and a dampening roller 10) is arranged on the corresponding driving swing rods 5 at the two sides through a pair of pressure adjusting eccentric rings between the stringing rollers and the plate leaning rollers; under the drive of each plate-leaning roller driving cylinder 2, the driving swing rod 5 rotates around the fixed support 17 and drives the corresponding plate-leaning roller (the inking roller I7, the inking roller II 9 and the dampening roller 10) to lift up and fall to perform the water-leaving and ink-leaving or inking work. The eccentric angle position of the eccentric ring 12 is adjusted by rotating and adjusting the pressure between the two side cluster rollers and the plate leaning roller, namely, the center distance between the cluster roller 3 and the corresponding plate leaning roller (the inking roller I7, the inking roller II 9 and the dampening roller 10) can be changed, namely, the pressure between the cluster roller 3 and the corresponding plate leaning roller (the inking roller I7, the inking roller II 9 and the dampening roller 10) is adjusted, the pressure between the two rollers is increased when the center distance is reduced, and otherwise, the pressure between the two rollers is reduced when the center distance is increased. After the pressure between the cluster roller 3 and the corresponding plate leaning roller (the inking roller I7, the inking roller II 9 and the dampening roller 10) is regulated, the locking screws 6 on the driving swing rods 5 at two sides are locked, and the eccentric angle positions of the eccentric rings 12 at two sides are regulated so as not to change any more, thereby ensuring the stable and unchanged pressure between the cluster roller 3 and the corresponding plate leaning roller. In the working process, the expansion and contraction actions of the corresponding plate roller driving cylinders 2 on two sides and the swinging actions of the driving swinging rods 5 are required to be synchronous and consistent; when the pressure between the tandem roller 3 and each of the leaning rollers (the inking roller I7, the inking roller II 9 and the dampening roller 10) is regulated, the regulating rotation angles of the regulating eccentric rings 12 on two sides are required to be correspondingly consistent, so that the leaning rollers (the inking roller I7, the inking roller II 9 and the dampening roller 10) are ensured to be parallel to the tandem roller 3, and the pressure on two sides of each leaning roller (the inking roller I7, the inking roller II 9 and the dampening roller 10) is ensured to be consistent. When the form leaning rollers (the inking roller I7, the inking roller II 9 and the dampening roller 10) separate from water or land on water, the pressure between the cluster roller 3 and the form leaning rollers (the inking roller I7, the inking roller II 9 and the dampening roller 10) is not changed.
Two plate leaning rollers and a pressure adjusting eccentric ring 15 between the plate leaning rollers and the plate cylinder in fig. 1 are arranged in the inner holes of corresponding plate leaning rollers 14 at two sides of each plate leaning roller (an inking roller I7, an inking roller II 9 and a dampening roller 10). During printing, the plate leaning rollers (the inking roller I7, the inking roller II 9 and the dampening roller 10) are tightly pressed against the surface of the printing plate on the plate cylinder 8 (see figure 2) under the pneumatic driving and controlling actions of the corresponding plate leaning roller driving cylinder 2, the driving swing rod 5 and the like, and the plate leaning rollers 14 on two sides of the plate leaning rollers (the inking roller I7, the inking roller II 9 and the dampening roller 10) are tightly pressed against the outer circle surface of the rolling pillow 16 on the plate cylinder. The eccentric angle position of the eccentric ring 15 is adjusted by rotating the pressure between the plate leaning roller and the plate cylinder at the inner holes of the plate leaning roller 14 at two sides, namely, the center distance between the plate leaning roller 14 and the rolling pillow 16 on the plate cylinder can be changed, so that the pressure between the plate leaning rollers (the inking roller I7, the inking roller II 9 and the dampening roller 10) and the printing plate on the plate cylinder 8 is adjusted and changed, the pressure between the plate leaning roller and the printing plate becomes larger when the center distance is smaller, and the pressure between the plate leaning roller and the printing plate becomes smaller when the center distance is larger. After the pressure between the plate leaning rollers (the inking roller I7, the inking roller II 9 and the dampening roller 10) and the printing plate is adjusted, the eccentric angle positions of the pressure adjusting eccentric rings 15 between the plate leaning rollers and the printing plate cylinder at the two sides are fixed and unchanged after the set screws 13 on the pressure adjusting eccentric rings 15 between the plate leaning rollers and the printing plate cylinder are locked, and the center distance between the plate leaning rollers 14 and the rolling pillow 16 on the printing plate cylinder is also fixed and unchanged during dampening printing, so that the dampening printing pressure between the plate leaning rollers (the inking roller I7, the inking roller II 9 and the dampening roller 10) and the printing plate on the printing plate cylinder 8 is ensured to be constant and stable. When the pressure is adjusted, the adjustment rotation angles of the pressure adjustment eccentric rings 15 between the plate leaning rollers and the plate cylinder at the two sides are correspondingly consistent, so that the plate leaning rollers (the inking roller I7, the inking roller II 9 and the dampening roller 10) are parallel to the plate cylinder 8, and the dampening printing pressures at the two sides between the plate leaning rollers (the inking roller I7, the inking roller II 9 and the dampening roller 10) and the printing plate are consistent. When the printing is performed, the plate surface on the plate cylinder 8 can be uniformly and smoothly inked by the plate rollers (inking roller I7, inking roller II 9 and dampening roller 10) under the action of the inking printing pressure.
Fig. 2 is a diagram showing the working positions of the form roller (i.e., the form roller i 7, the form roller ii 9, the form roller 10), the form roller driving cylinder 2, the driving swing lever 5, and the like in the printing working state (i.e., the form dampening water) of the present invention. At this time, the plate leaning rollers (the inking roller I7, the inking roller II 9 and the dampening roller 10) are tightly pressed against the surface of the printing plate on the plate cylinder 8 under the pneumatic driving and controlling actions of the corresponding plate leaning roller driving cylinder 2, the driving swing rod 5 and the like, and the plate leaning rollers 14 (see figure 1) on the two sides of the plate leaning rollers (the inking roller I7, the inking roller II 9 and the dampening roller 10) are tightly abutted against the surface of the rolling pillow 16 on the plate cylinder, so that the dampening printing pressure between the plate leaning rollers (the inking roller I7, the inking roller II 9 and the dampening roller 10) and the plate cylinder 8 is ensured to be constant and stable. Under the action of the inking pressure, the plate rollers (inking roller I7, inking roller II 9 and dampening roller 10) evenly and stably ink the surface of the plate on the plate cylinder 8.
Fig. 2 is a diagram showing the positions of the plate roller (i.e. inking roller i 7, inking roller ii 9, dampening roller 10), plate roller driving cylinder 2, driving swing rod 5, etc. in the non-working state (i.e. ink-separating and water-separating) of the present invention. At this time, under the pneumatic driving and controlling actions of the corresponding plate roller driving cylinder 2, the driving swing rod 5 and the like, the plate rollers (the inking roller I7, the inking roller II 9 and the dampening roller 10) are separated from the surface of the plate cylinder 8 and retract into the machine frame wallboard 1, so that a large operation space is reserved for replacing various cylinders.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.
Claims (6)
1. A method for adjusting ink pressure of a plate leaning roller based on a replaceable drum type rotary offset press is characterized by comprising the following steps: each printing roller leaning ink pressure adjusting mechanism consists of two sets of symmetrically installed printing roller leaning driving cylinders (2), driving swinging rods (5), cylinder fixing mandrels (11), cylinder joints (4), a pressing adjusting eccentric ring (12) between a printing roller leaning roller and a printing roller leaning roller, a printing roller leaning roller (14), a pressing adjusting eccentric ring (15) between the printing roller leaning roller and a printing roller and fixing supports (17), the two fixing supports (17) are respectively installed on frame wallboards (1) on two sides, the two fixing supports (17) are used for fixing the printing roller leaning roller, the two driving swinging rods (5) are all installed on the corresponding fixing supports (17), the fixed ends of the printing roller leaning driving cylinders (2) are installed and fixed on the frame wallboards (1) through the cylinder fixing mandrels (11), and the movable ends of the printing roller leaning driving cylinders (2) are connected to the driving swinging rods (5) through the corresponding cylinder joints (4); the plate leaning roller is arranged on corresponding driving swing rods (5) at two sides through a pair of pressure adjusting eccentric rings between the cluster roller and the plate leaning roller; the pressure adjusting eccentric rings (15) between the two plate leaning rollers and the plate cylinder are respectively arranged in the inner holes of the corresponding plate leaning rollers (14) at the two sides of each plate leaning roller; under the drive of each plate roller driving cylinder (2), the driving swing rod (5) rotates around the fixed support (17) and drives the corresponding plate roller to rise and fall to perform the water and ink separation or water and ink landing work; the eccentric angle position of the eccentric ring (12) is adjusted by rotating and adjusting the pressure between the two side cluster rollers and the corresponding plate leaning roller, so that the center distance between the cluster roller (3) and the corresponding plate leaning roller can be changed, namely, the pressure between the cluster roller (3) and the corresponding plate leaning roller is adjusted, the pressure between the two rollers is increased when the center distance is reduced, and otherwise, the pressure between the two rollers is reduced when the center distance is increased; after the pressure between the tandem roller (3) and the corresponding plate leaning roller is adjusted, locking screws (6) on driving swing rods (5) at two sides are locked, and the eccentric angle positions of eccentric rings (12) at two sides are adjusted so as not to change any more, thereby ensuring the pressure between the tandem roller (3) and the corresponding plate leaning roller to be stable and unchanged.
2. The method for adjusting the ink pressure of the plate leaning roller based on the replaceable drum type rotary offset press according to claim 1, which is characterized in that: the driving swing rod (5) is provided with a locking screw (6).
3. The method for adjusting the ink pressure of the plate leaning roller based on the replaceable drum type rotary offset press according to claim 1, which is characterized in that: and a set screw (13) is arranged on the pressure adjusting eccentric ring (15) between the plate leaning roller and the plate cylinder.
4. The method for adjusting the ink pressure of the plate leaning roller based on the replaceable drum type rotary offset press according to claim 1, which is characterized in that: in the working process, the expansion and contraction actions of the corresponding plate roller driving cylinders (2) on two sides and the swinging actions of the driving swinging rods (5) are required to be synchronous and consistent; when the pressure between the tandem roller (3) and each plate leaning roller is regulated, the regulating rotation angles of the regulating eccentric rings (12) at the two sides are required to be correspondingly consistent, so that the parallel connection of each plate leaning roller and the tandem roller (3) is ensured, and the consistency of the pressure at the two sides of each plate leaning roller is ensured; when the plate leaning rollers separate from water and leave ink or water and land, the pressure between the serial roller (3) and the plate leaning rollers is not changed.
5. The method for adjusting the ink pressure of the plate leaning roller based on the replaceable drum type rotary offset press according to claim 1, which is characterized in that: during printing, each plate leaning roller is tightly pressed against the surface of a printing plate on a printing plate cylinder (8) under the pneumatic driving and controlling actions of a corresponding plate leaning roller driving cylinder (2) and a driving swing rod (5), and plate leaning rollers (14) on two sides of each plate leaning roller are tightly pressed against the outer circle surface of a rolling pillow (16) on the printing plate cylinder; the eccentric angle position of the eccentric ring (15) is adjusted by rotating the pressure between the plate leaning rollers and the plate cylinder at the inner holes of the plate leaning rollers (14) at the two sides, namely, the center distance between the plate leaning rollers (14) and the rolling pillow (16) on the plate cylinder can be changed, so that the pressure between the plate leaning rollers and the printing plates on the plate cylinder (8) is adjusted and changed correspondingly, the pressure between the plate leaning rollers and the printing plates is increased when the center distance is reduced, and otherwise, the pressure between the plate leaning rollers and the printing plates is reduced when the center distance is increased; after the pressure between the plate leaning roller and the printing plate is adjusted, the eccentric angle position of the pressure adjusting eccentric ring (15) between the plate leaning roller and the printing plate cylinder at the two sides is fixed after the pressure adjusting set screw (13) on the pressure adjusting eccentric ring (15) between the plate leaning roller and the printing plate cylinder is locked, and the center distance between the plate leaning roller (14) and the rolling pillow (16) on the printing plate cylinder is fixed during inking printing, so that the inking printing pressure between the plate leaning rollers and the printing plate on the printing plate cylinder (8) is ensured to be constant and stable.
6. The method for adjusting the ink pressure of the plate leaning roller based on the replaceable drum type rotary offset press as set forth in claim 5, wherein the method comprises the following steps: when the pressure between the plate leaning rollers and the plate cylinder is regulated, the regulating rotation angles of the pressure regulating eccentric rings (15) between the plate leaning rollers and the plate cylinder at two sides are ensured to be consistent, so that the parallel of the plate leaning rollers and the plate cylinder (8) is ensured, and the consistent dampening printing pressure at two sides between the plate leaning rollers and the plate is ensured; when the printing is performed, each plate leaning roller can uniformly and stably ink the surface of the printing plate on the plate cylinder (8) by the action of the inking printing pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810467028.4A CN110497693B (en) | 2018-05-16 | 2018-05-16 | Ink pressure regulating method based on plate leaning roller of replaceable drum type rotary offset press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810467028.4A CN110497693B (en) | 2018-05-16 | 2018-05-16 | Ink pressure regulating method based on plate leaning roller of replaceable drum type rotary offset press |
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| CN110497693A CN110497693A (en) | 2019-11-26 |
| CN110497693B true CN110497693B (en) | 2023-06-27 |
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| CN201810467028.4A Active CN110497693B (en) | 2018-05-16 | 2018-05-16 | Ink pressure regulating method based on plate leaning roller of replaceable drum type rotary offset press |
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| CN112606535A (en) * | 2020-12-25 | 2021-04-06 | 高斯图文印刷系统（中国）有限公司 | Continuous water feeding device of commercial offset press |
| CN113022128B (en) * | 2021-05-10 | 2022-05-20 | 南通嘉正光学科技有限公司 | Ink distributing device for printing equipment |
| CN115157837B (en) * | 2022-08-10 | 2023-08-18 | 深圳市汉岩机械有限公司 | Efficient automatic PS plate rotary machine |
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| US3065692A (en) * | 1960-11-23 | 1962-11-27 | Miehle Goss Dexter Inc | Unitary and removable inking mechanism for printing presses |
| CN201721111U (en) * | 2010-05-20 | 2011-01-26 | 江苏昌昇集团股份有限公司 | Alcohol dampening device of large amplitude full-opening machine |
| CN106739482B (en) * | 2016-12-05 | 2018-09-18 | 高斯图文印刷系统（中国）有限公司 | A kind of water-ink roller clutch of variable format printing machine |
| CN206983469U (en) * | 2017-06-30 | 2018-02-09 | 景德镇市中景印机有限公司 | A kind of rotary offset machine |
| CN208930940U (en) * | 2018-05-16 | 2019-06-04 | 景德镇市中景印机有限公司 | A kind of copy roller ink pressure adjustmenting mechanism based on interchangeable drum-type rotary offset machine |
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