CN108705849A - A kind of offset press damping device - Google Patents
A kind of offset press damping device Download PDFInfo
- Publication number
- CN108705849A CN108705849A CN201810735969.1A CN201810735969A CN108705849A CN 108705849 A CN108705849 A CN 108705849A CN 201810735969 A CN201810735969 A CN 201810735969A CN 108705849 A CN108705849 A CN 108705849A
- Authority
- CN
- China
- Prior art keywords
- roller
- damping
- laser
- fountain solution
- speculum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000013016 damping Methods 0.000 title claims abstract description 46
- 238000007639 printing Methods 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000011521 glass Substances 0.000 claims abstract description 29
- 238000003860 storage Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000009736 wetting Methods 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims description 11
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000001802 infusion Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000007645 offset printing Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
- B41F7/32—Ducts, containers, or like supply devices for liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Rotary Presses (AREA)
Abstract
The invention discloses a kind of offset press damping devices, including moistening unit, sensing device and controller.Sensing device is mounted on the printing cylinder top of offset press, and sensing device is connect with controller signals；Moistening unit includes drive motor, profit infusion storage box, 5 drive motors and respectively in moistening unit water bucket roller, pass damping roller, dampening vibrator roller, the shaft clearance of damping roller and plate cylinder and coordinate；The inside bottom side of fountain solution storage box is equipped with two pass joints, and two pass joint lower threads are connected with circular glass pipe, and circular glass pipe is located at the upside of water bucket roller and offers a round hole, cylinder plug and its clearance fit.The right end of cylinder plug is equipped with stepper motor, and stepper motor is connect with controller signals.The present invention cannot automatically adjust the technical problems such as influence printing quality for wetting liquid measure in the prior art and be improved.The present invention has the characteristics that adjusting fountain solution precision is high, printing quality is high and production efficiency is fast.
Description
Technical field
The present invention relates to a kind of offset press manufacturing field of equipment more particularly to a kind of offset press damping devices.
Background technology
Offset printing at present is carried out using oil and the mutually exclusive principle of water.The damping device of offset press is coated with to printing plate to be moistened
Printing plate non-graphic part is protected, is allowed to non-sticky ink by wet liquid.Because offset printing speed is fast, printing quality is stablized relatively,
The advantages that entirely print cycle is short, and be widely used in books and periodicals, newspaper and quite a few commercial printing field.Correctly control
The wetting liquid measure being coated with to printing plate is made, the ink-water balance kept is the essential condition for obtaining high quality printing product, and confluent is not
Foot, will produce dirty version phenomenon；Confluent is excessive, can not only make paper distortion, influences register, but also can aggravate the breast of ink
Change.Therefore, how to ensure to supply enough and uniform waters, and printing quality is made to reach optimum efficiency and water supply control is existed
Minimum limit is a critical issue in offset printing.
For this purpose, the invention discloses a kind of offset press damping device, the present invention judges compared to existing range estimation on printing forme
Whether fountain solution is suitable, uses and is projected on plate cylinder by speculum with laser, and the non-image portion of printing plate is by laser
After irradiation, if wetting liquid measure is small, the diffusion of reflected light is with regard to big, if wetting liquid measure is big, the diffusion of reflected light is with regard to small, close to mirror
Face is reflected, and the light signal strength after reflection is converted in electric signal feeding controller by sensor and is compared with initial value.Again
By controller fountain solution is controlled to control the displacement of cylinder plug in a glass tube to adjust the displacement of servo motor
Flow replaces the bucket in general printing machine with leakproofness fountain solution storage box, can there is different selections, example to fountain solution
Such as doing wetting liquid energy with alcohol reduces the surface tension of fountain solution, and the reduction of surface tension improves fountain solution on plate surface
Spreading property.It is placed in sealed environment that alcohol evaporation rate is many slowly compared with bucket, substantially increases fountain solution service life, remove
Except this, glass tube then avoids ink contamination fountain solution using discontiguous mode on the upside of water bucket roller to transmit fountain solution,
The problems such as reducing printing quality.Adaptable strong, the adjusting fountain solution precision height of the present invention, printing quality height and production efficiency are fast
The characteristics of.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of offset press damping devices, existing to solve
There is the wetting liquid measure in technology that cannot automatically adjust, fountain solution is easily contaminated with ink the technical issues of causing printing quality low etc..
The adaptable feature strong, adjusting fountain solution precision is high, printing quality is high and production efficiency is fast of the present invention.
The present invention is achieved by the following technical solutions：The invention discloses a kind of offset press damping devices, including profit
Wet unit, sensing device and controller, moistening unit include water bucket roller, pass damping roller, dampening vibrator roller and damping roller, water bucket roller and pass water
Roller surface pressure be bonded, pass damping roller and dampening vibrator roller surface pressing fitting, dampening vibrator roller and dampening roller surface pressure fitting, damping roller and
The plate cylinder surface pressing of printing machine is bonded；
Sensing device includes laser, speculum and laser sensor, and laser is mounted on plate cylinder top and and print
Brush roller is parallel, and the quantity of speculum is two, and a speculum is mounted on the front side of laser horizontal by 45 degree of angles,
Laser is connect with speculum by optical fiber；The center of speculum and laser is on same axis, and reflective mirror hangs down
Being mounted on line has another speculum and two reflective mirrors are parallel, laser sensor be mounted on the upside of printing cylinder and with control
Device signal connection processed；
Moistening unit further includes having 5 drive motors, fountain solution storage box, two pass joints, circular glass pipe, cylinder plug
Son and stepper motor, 5 drive motors respectively with water bucket roller, pass damping roller, dampening vibrator roller, the shaft clearance of damping roller and plate cylinder and match
It closes；Fountain solution storage box be rectangular configuration, two pass joints be mounted on fountain solution storage box bottom, the top of two pass joints with
It is communicated inside fountain solution storage box, circular glass pipe is fixedly connected with the lower thread of two pass joints, and circular glass pipe is located at water
It struggles against the upside of roller, a round hole, round hole and cylinder plug clearance fit, stepping is further opened at the center of circular glass pipe
Motor is mounted on the right end of cylinder plug and is connect with controller signals.
Preferably, in order to accurately measure the amount of fountain solution so that wetting liquid measure is controllable, and laser uses model JY-
HN2.0R, laser sensor use model ZLTD18, controller to use model 51.
Preferably, in order to keep the displacement of cylinder plug not jerky and not damage circular glass pipe, the cylinder plug
Outer rim wraps up layer of non-woven fabric.
Preferably, prevent the fountain solution in fountain solution from leaking outside, the outer rim of two pass joints is equipped with sealing rubber ring.
Preferably, in order to which the liquid in circular glass pipe is accurately transmitted on water bucket roller and is not splashed out, circular glass pipe
Vertical line has intersection point with water bucket roller and is arranged within the scope of 0.5-1CM with the vertical range of water bucket roller.
The invention discloses a kind of offset press damping device, the present invention judges fountain solution on printing forme compared to existing range estimation
It is whether suitable, it uses and is projected on plate cylinder by speculum with laser, the light signal strength after reflection passes through sensor
It is converted to and is compared with initial value in electric signal feeding controller.It is controlled again by controller to adjust the displacement of servo motor
The displacement of cylinder plug in a glass tube controls the flow of fountain solution, replaces generally printing with leakproofness fountain solution storage box
Bucket in machine can have fountain solution different selections, such as do wetting liquid energy with alcohol to reduce the surface of fountain solution
The reduction of power, surface tension improves spreading property of the fountain solution on plate surface.It is placed on alcohol volatilization speed in sealed environment
Degree is many slowly compared with bucket, substantially increases fountain solution service life, and in addition to this, glass tube is used on the upside of water bucket roller and do not contacted
Mode the problems such as then avoiding ink contamination fountain solution to transmit fountain solution, reducing printing quality.The present invention is adaptable
By force, the feature that fountain solution precision is high, printing quality is high and production efficiency is fast is adjusted.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is moistening unit left view structural representation；
Fig. 3 is the water-supply structure schematic diagram of moistening unit；
Fig. 4 is the structural schematic diagram of sensing device light path transmission structure.
Specific implementation mode
It elaborates below to the embodiment of the present invention, the present embodiment is carried out lower based on the technical solution of the present invention
Implement, gives detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
Embodiment 1 discloses a kind of offset press damping device, as shown in Figure 1 and Figure 4, including moistening unit 1, sensing device
2 and controller 3, moistening unit 2 includes water bucket roller 112, pass damping roller 113, dampening vibrator roller 114 and damping roller 115,112 He of water bucket roller
The fitting of 113 surface pressing of damping roller is passed, damping roller 113 and the fitting of 114 surface pressing of dampening vibrator roller, dampening vibrator roller 114 and 115 table of damping roller are passed
Surface pressure is bonded, and 116 surface pressing of the plate cylinder fitting of damping roller 115 and printing machine；
Sensing device 2 includes laser 21, speculum 22 and laser sensor 23, the laser of model JY-HN2.0R
21 are mounted on 116 top of plate cylinder and parallel with printing cylinder 116, and the quantity of speculum 22 is two, a speculum 22
The front side of laser 21 is mounted on horizontal by 45 degree of angles, the laser 21 and speculum 22 of model JY-HN2.0R is logical
Cross optical fiber connection；The center of the laser 21 of speculum 22 and model JY-HN2.0R is on same axis, reflective mirror
Another speculum 22 is installed on 22 vertical line and two reflective mirrors are parallel, the laser sensor 23 of model ZLTD18 is installed
It is connect in the upside of printing cylinder 116 and with 3 signal of the controller of model 51；
As shown in Figures 2 and 3, moistening unit 1 further includes having 5 drive motors 117, fountain solution storage box 111, two to connect
First 118,121,5 circular glass pipe 119, cylinder plug 120 and stepper motor drive motors 117 respectively with water bucket roller 112,
Pass damping roller 113, dampening vibrator roller 114, the shaft clearance cooperation for damping roller 115 and plate cylinder 116；Fountain solution storage box 111 is rectangle
Structure, two pass joints 118 are mounted on the bottom of fountain solution storage box 111, top and the fountain solution storage box of two pass joints 118
It is communicated inside 111 and the outer rim of two pass joints 118 is equipped with sealing rubber ring (being not marked in figure).Circular glass pipe 119 and two
The lower thread of pass joint 118 is fixedly connected, and circular glass pipe 119 is located at the upside of water bucket roller 112, circular glass pipe 119
Vertical line has intersection point and is set as 0.5CM with the vertical range of water bucket roller 112 with water bucket roller 112.At the center of circular glass pipe 119
It is further opened with a round hole (being not marked in figure), round hole (being not marked in figure) and 120 clearance fit of cylinder plug, cylinder
The outer rim package layer of non-woven fabric (being not marked in figure) of plug 120.Stepper motor 121 is mounted on the right end of cylinder plug 120
And it is connect with 3 signal of the controller of model 51.Controller 3 is mounted on the right side of stepper motor 121.
Embodiment 2
Embodiment 2 discloses a kind of offset press damping device, including moistening unit 1, sensing device 2 and controller 3, wetting
Unit 2 includes water bucket roller 112, pass damping roller 113, dampening vibrator roller 114 and damping roller 115, water bucket roller 112 and pass damping roller 113 surface pressure
Power is bonded, and passes damping roller 113 and the fitting of 114 surface pressing of dampening vibrator roller, dampening vibrator roller 114 and the fitting of 115 surface pressing of damping roller, dampening
116 surface pressing of plate cylinder of roller 115 and printing machine is bonded；
Sensing device 2 includes laser 21, speculum 22 and laser sensor 23, the laser of model JY-HN2.0R
21 are mounted on 116 top of plate cylinder and parallel with printing cylinder 116, and the quantity of speculum 22 is two, a speculum 22
The front side of laser 21 is mounted on horizontal by 45 degree of angles, the laser 21 and speculum 22 of model JY-HN2.0R is logical
Cross optical fiber connection；The center of the laser 21 of speculum 22 and model JY-HN2.0R is on same axis, reflective mirror
It is equipped with another speculum 22 on 22 vertical line and two reflective mirrors are parallel, the laser sensor 23 of model ZLTD18 is mounted on
It the upside of printing cylinder 116 and is connect with 3 signal of the controller of model 51；
Moistening unit 1 further includes having 5 drive motors 117, fountain solution storage box 111, two pass joints 118, circular glass
121,5 pipe 119, cylinder plug 120 and stepper motor drive motors 117 respectively with water bucket roller 112, pass damping roller 113, string water
Roller 114, the shaft clearance cooperation for damping roller 115 and plate cylinder 116；Fountain solution storage box 111 is rectangular configuration, two pass joints
118 are mounted on the bottom of fountain solution storage box 111, communicate inside the top of two pass joints 118 and fountain solution storage box 111 and two
The outer rim of pass joint 118 is equipped with sealing rubber ring.Circular glass pipe 119 is fixedly connected with the lower thread of two pass joints 118,
Circular glass pipe 119 is located at the upside of water bucket roller 112, and vertical line and the water bucket roller 112 of circular glass pipe 119 have intersection point and and bucket
The vertical range of roller 112 is set as 1CM.A round hole, round hole and cylinder are further opened at the center of circular glass pipe 119
The outer rim of 120 clearance fit of plug, cylinder plug 120 wraps up layer of non-woven fabric.Stepper motor 121 is mounted on cylinder plug
It 120 right end and is connect with 3 signal of the controller of model 51, controller 3 is mounted on the right side of stepper motor 121.
Claims (5)
1. a kind of offset press damping device, including moistening unit, sensing device and controller, the moistening unit include bucket
Roller, pass damping roller, dampening vibrator roller and damping roller, the water bucket roller and the biographys damping roller surface pressing be bonded, the biography damping roller and described
Dampening vibrator roller surface pressing is bonded, the dampening vibrator roller and dampening roller surface pressure fitting, described the print of damping roller and printing machine
Plate cylinder surface pressing is bonded；
The sensing device includes laser, speculum and laser sensor, and the laser is mounted on the plate cylinder
The quantity in portion and parallel with the printing cylinder, the speculum is two, and a speculum is horizontal by 45 degree folders
Angle is mounted on the front side of the laser, and the laser is connect with the speculum by optical fiber；The speculum and
The center of the laser is on same axis, another described speculum and two are equipped on the vertical line of the reflective mirror
The reflective mirror is parallel, and the laser sensor is mounted on the upside of the printing cylinder and is connected with the controller in a signal way.；
It is characterized in that, the moistening unit further includes having 5 drive motors, fountain solution storage box, two pass joints, circular glass
Pipe, cylinder plug and stepper motor, 5 drive motors respectively with the water bucket roller, pass damping roller, dampening vibrator roller, damping roller
Coordinate with the shaft clearance of plate cylinder；The fountain solution storage box is rectangular configuration, and two pass joint is mounted on the wetting
Communicated inside the bottom of liquid storage box, the top of two pass joint and the fountain solution storage box, the circular glass pipe with
The lower thread of two pass joint is fixedly connected, and the circular glass pipe is located at the upside of the water bucket roller, the circle glass
A round hole, the round hole and the cylinder plug clearance fit, the stepper motor are further opened at the center of glass pipe
Mounted on the cylinder plug right end and be connected with the controller in a signal way..
2. a kind of offset press damping device as described in claim 1, which is characterized in that the laser uses model JY-
HN2.0R, the laser sensor use model ZLTD18, the controller to use model 51.
3. a kind of offset press damping device as described in claim 1, which is characterized in that the outer rim of the cylinder plug is wrapped up
Layer of non-woven fabric.
4. a kind of offset press damping device as described in claim 1, which is characterized in that the outer rim of two pass joint is equipped with
Sealing rubber ring.
5. a kind of offset press damping device as described in claim 1, which is characterized in that the vertical line of the circular glass pipe and institute
Stating water bucket roller has intersection point and is arranged within the scope of 0.5-1CM with the vertical range of the water bucket roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810735969.1A CN108705849B (en) | 2018-07-06 | 2018-07-06 | Wetting device of offset press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810735969.1A CN108705849B (en) | 2018-07-06 | 2018-07-06 | Wetting device of offset press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108705849A true CN108705849A (en) | 2018-10-26 |
| CN108705849B CN108705849B (en) | 2024-03-08 |
Family
ID=63874850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810735969.1A Active CN108705849B (en) | 2018-07-06 | 2018-07-06 | Wetting device of offset press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108705849B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11414344B2 (en) | 2019-07-23 | 2022-08-16 | Corning Incorporated | Apparatus and methods for accurate high-speed marking of optical fibers |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB633990A (en) * | 1948-01-02 | 1949-12-30 | Frederick Charles Servante | Improvements in and relating to damping devices for lithographic printing machines |
| GB1284696A (en) * | 1970-05-06 | 1972-08-09 | Maschf Augsburg Nuernberg Ag | A dampening system for a rotary offset lithographic printing machine |
| CN1416394A (en) * | 2000-03-09 | 2003-05-07 | 联邦科学和工业研究组织 | Ink and dampening solution determination in affset printing |
| US20130247788A1 (en) * | 2012-03-21 | 2013-09-26 | Xerox Corporation | Dampening Fluid Deposition by Condensation in a Digital Lithographic System |
| CN203267461U (en) * | 2013-05-16 | 2013-11-06 | 陕西科技大学 | Ultrasonic sheet-fed offset press wetting liquid depth detecting device |
| CN203305638U (en) * | 2013-05-28 | 2013-11-27 | 龚修端 | Offset press ink-water balance automatic control device |
| CN206899943U (en) * | 2017-07-06 | 2018-01-19 | 张亮 | Expand automatic liquid matching outside a kind of offset press and even supply device |
| CN208529926U (en) * | 2018-07-06 | 2019-02-22 | 芜湖市华美工艺包装有限公司 | A kind of offset press damping device |
-
2018
- 2018-07-06 CN CN201810735969.1A patent/CN108705849B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB633990A (en) * | 1948-01-02 | 1949-12-30 | Frederick Charles Servante | Improvements in and relating to damping devices for lithographic printing machines |
| GB1284696A (en) * | 1970-05-06 | 1972-08-09 | Maschf Augsburg Nuernberg Ag | A dampening system for a rotary offset lithographic printing machine |
| CN1416394A (en) * | 2000-03-09 | 2003-05-07 | 联邦科学和工业研究组织 | Ink and dampening solution determination in affset printing |
| US20130247788A1 (en) * | 2012-03-21 | 2013-09-26 | Xerox Corporation | Dampening Fluid Deposition by Condensation in a Digital Lithographic System |
| CN203267461U (en) * | 2013-05-16 | 2013-11-06 | 陕西科技大学 | Ultrasonic sheet-fed offset press wetting liquid depth detecting device |
| CN203305638U (en) * | 2013-05-28 | 2013-11-27 | 龚修端 | Offset press ink-water balance automatic control device |
| CN206899943U (en) * | 2017-07-06 | 2018-01-19 | 张亮 | Expand automatic liquid matching outside a kind of offset press and even supply device |
| CN208529926U (en) * | 2018-07-06 | 2019-02-22 | 芜湖市华美工艺包装有限公司 | A kind of offset press damping device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11414344B2 (en) | 2019-07-23 | 2022-08-16 | Corning Incorporated | Apparatus and methods for accurate high-speed marking of optical fibers |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108705849B (en) | 2024-03-08 |
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