CN206796774U - The ink-scraping device of intaglio press - Google Patents
The ink-scraping device of intaglio press Download PDFInfo
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- CN206796774U CN206796774U CN201720629952.9U CN201720629952U CN206796774U CN 206796774 U CN206796774 U CN 206796774U CN 201720629952 U CN201720629952 U CN 201720629952U CN 206796774 U CN206796774 U CN 206796774U
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- ink
- cover
- gas
- scraping device
- plate cylinder
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Abstract
The utility model discloses a kind of ink-scraping device of intaglio press,Its drip irrigation device is to include frame,Plate cylinder is connected between frame,Ink-scraping device includes gas cleaning assembly,Gas cleaning assembly includes appendix,Gas collecting jar with ground-on cover plate and cover of supplying gas,The air outlet of cover of supplying gas corresponds to the tangent line of plate cylinder,The ink-scraping device also includes secondary cleaning assembly,Secondary cleaning assembly includes rotating shaft,Tool rest,Doctor and mounting seat,Mounting seat has two and is connected to frame both sides,Axis of rotation be connected between two mounting seats and with impression cylinder keeping parallelism,Tool rest is fixed along the axis of rotating shaft,Doctor is clamped and fastened in tool rest and blade is squeezed in plate cylinder surface,Supply gas cover air-out direction and doctor to scrape wiping direction opposite with the rotation direction of plate cylinder,Plate cylinder, which dips in, to be first passed through cover of supplying gas after ink and passes through doctor again.The utility model solves the existing ink-scraping device cleaning halfway problem of ink.
Description
Technical field
Printing machine is the utility model is related to, more particularly to a kind of ink-scraping device of intaglio press.
Background technology
Intaglio press is the machine printed using intaglio plate.Printing elements is recessed, and blank parts and print
Plate cylinder it is cylindrical at grade.When intaglio press prints, the full space of a whole page inking of plate cylinder, with doctor by the space of a whole page
The ink of blank parts scrapes, and leaves the ink of areas, then crosses paper, is imprinted, made recessed at the back side of paper by impression cylinder
The ink of lower part is transferred directly on paper, most afterwards heaps printed matter through paper collection part point or rewinding is good.
Notification number is that CN101758654A Chinese patent discloses a kind of ink-scraping device of intaglio press, including power
Mechanism, hopper, impression cylinder, stock, plate cylinder and airflow apparatus, airflow apparatus offer gas adjacent to one end of hopper
Flow nozzle, the center line of air current spray nozzle and the plate cylinder are tangent.Airflow apparatus ventilation, which is blown, during use cuts plate cylinder surface
Upper unnecessary ink, the defects of device is present be when gas pushing quantity fluctuate, it is sticky and inside it due to ink
The surface of plate cylinder is caused to remain one layer of ink film under tension force effect, so that occurring ink print on printed matter.
Utility model content
The purpose of this utility model is to provide a kind of ink-scraping device of intaglio press, for stable effective cleaning print
The ink of plate cylinder excess surface.
Above-mentioned purpose of the present utility model technical scheme is that：A kind of wiping of intaglio press
Device, including for installing the intaglio press frame of ink-scraping device, plate cylinder is connected between frame, ink-scraping device includes
Gas cleaning assembly, gas cleaning assembly include appendix, gas collecting jar with ground-on cover plate and cover of supplying gas, and the air outlet for cover of supplying gas corresponds to printing plate rolling
The tangent line of cylinder, the ink-scraping device also include secondary cleaning assembly, secondary cleaning assembly including rotating shaft, tool rest, doctor and
Mounting seat, mounting seat have two and are connected to frame both sides, and axis of rotation is connected between two mounting seats and and impression cylinder
Keeping parallelism, tool rest are fixed along the axis of rotating shaft, and doctor is clamped and fastened in tool rest and blade is squeezed in plate cylinder surface,
The air-out direction of cover and the rotation direction for scraping wiping direction and plate cylinder of doctor supply gas on the contrary, plate cylinder dips in Mo Houxian warps
Cross cover of supplying gas and pass through doctor again.
By using above-mentioned technical proposal, in use, pressure-air enters gas collecting jar with ground-on cover plate via appendix, then entered by gas collecting jar with ground-on cover plate
Enter cover of supplying gas, finally blown out from air outlet, form gas cutting knife, gas cutting knife sprays against the rotation direction of plate cylinder, right
Ink in plate cylinder whole surface is cleared up.
Secondary cleaning assembly coordinates gas cleaning assembly to carry out wiping.Remaining ink can be after the cleaning of gas cleaning assembly
Plate cylinder is scraped off in the presence of doctor, doctor is against the rotation direction wiping of plate cylinder, and the strength of scraping is larger, energy
By the more clean of plate cylinder non-graphic part cleaning, the effect for clearing up ink is preferable.
The utility model is further arranged to：The both ends tight fit of the rotating shaft has worm gear, and worm screw is provided with mounting seat,
Worm and wheel engages, and one end that worm screw passes mounting seat is fixedly connected with handwheel.
By using above-mentioned technical proposal, during by hand wheel rotating worm screw, worm screw drives worm gear wheel, and worm gear drives rotating shaft
On doctor swing, the angle of doctor is adjusted.Self-locking property based on worm gear, worm screw, doctor energy after regulation
Current location is enough maintained at, such staff can adjust the angle of doctor according to the diameter of plate cylinder.
The utility model is further arranged to：The rotating shaft is provided at both ends with flexible adjustment component, flexible adjustment component
Including U-shaped deck, slide link, positioning ring and limit spring, U-shaped deck is fixedly connected in frame, U-shaped deck opening
Between offer two through holes, slide link is arranged in through hole and can slided up and down, and positioning ring tight fit slide link is simultaneously
Take and be placed on the through hole of U-shaped deck bottom, limit spring is sheathed on slide link and between U-shaped deck, limit spring
It is squeezed on positioning ring.
By using above-mentioned technical proposal, under the elastic force effect of limit spring, slide link has a fortune downwards always
Dynamic trend, and then slide link brings mounting seat one trend moved straight down, finally make it that doctor blade is effective
It is squeezed on plate cylinder, plate cylinder is effectively cleared up.
The utility model is further arranged to：The cover of supplying gas is integrally curved, its cross section from one end of gas collecting jar with ground-on cover plate to
It is gradually reduced close to one end of plate cylinder.
By using above-mentioned technical proposal, the cross section for cover of supplying gas tapers into along its jet direction so that from air outlet
The gas flow rate of interior ejection uprises, and pressure becomes big, more preferable to the cleaning effect of ink.
The utility model is further arranged to：Multiple dividing plates are arranged at intervals with inside the cover of supplying gas, dividing plate has and sent
Gas hood identical radius of curvature, the dividing plate cover that will supply gas are divided into multiple ventilation cavitys.
By using above-mentioned technical proposal so that the outlet for cover of supplying gas is more uniformly distributed, and the gas cutting knife of formation is more uniformly distributed,
It is more preferable to the cleaning effect of plate cylinder.
The utility model is further arranged to：Doctor is made up of elastomeric material, overall to the direction close to plate cylinder
Bending.
By using above-mentioned technical proposal, injury of the flexible doctor to plate cylinder is smaller；The wiping of bending simultaneously
Knife can provide bigger extruding force on plate cylinder, and the strength of scraping is larger, can clear up plate cylinder non-graphic part
It is more clean.
In summary, the utility model has the advantages that：In use, pressure-air enters gas collection via appendix
Cylinder, then cover of supplying gas is entered by gas collecting jar with ground-on cover plate, finally blown out from air outlet, form gas cutting knife, gas cutting knife is against plate cylinder
Rotation direction is sprayed, and the ink in plate cylinder whole surface is cleared up.
Secondary cleaning assembly coordinates gas cleaning assembly to carry out wiping.Remaining ink can be after the cleaning of gas cleaning assembly
Plate cylinder is scraped off in the presence of doctor, doctor is against the rotation direction wiping of plate cylinder, and the strength of scraping is larger, energy
By the more clean of plate cylinder non-graphic part cleaning, the effect for clearing up ink is preferable.
Brief description of the drawings
Fig. 1 is the front view of intaglio press；
Fig. 2 is the sectional view in Fig. 1 A-A directions；
Fig. 3 is to represent the view that is done of attachment structure of ink tank, pneumatic diaphragm pump, EGR；
Fig. 4 is the front view of EGR；
Fig. 5 is the explosive view of EGR；
Fig. 6 is the sectional view of EGR；
Fig. 7 is intaglio press to show stereogram that the structure of ink-scraping device is done；
Fig. 8 is the structural representation of ink-scraping device；
Fig. 9 is the explosive view of ink-scraping device.
In figure, 1, frame；11st, baking oven；2nd, impression cylinder；3rd, plate cylinder；4th, inking roller；5th, ink tank；50th, oil outlet；
6th, pneumatic diaphragm pump；60th, communicating pipe；61st, petroleum pipeline；62nd, EGR；620th, oil exit pipe；621st, cylinder；6210th, collide convex
Platform；6211st, sewage draining exit；6212nd, cover；622nd, screen pack；623rd, deflector；6230th, flow-guiding mouth；624th, stirring vane；625、
Stirring motor；7th, ink-scraping device；70th, gas cleaning assembly；700th, appendix；701st, gas collecting jar with ground-on cover plate；702nd, supply gas cover；7020th, go out
Air port；703rd, dividing plate；71st, secondary cleaning assembly；710th, rotating shaft；711st, tool rest；712nd, doctor；713rd, mounting seat；714th, snail
Bar；715th, worm gear；716th, handwheel；8th, flexible adjustment component；80th, U-shaped deck；81st, slide link；82nd, positioning ring；83rd, limit
Position spring.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment 1：A kind of intaglio press, as shown in figure 1, including frame 1, the top of frame 1 is to have baking oven 11, frame 1
Between be provided with the impression cylinder 2 of quality of rubber materials, impression cylinder 2 is arranged with plate cylinder 3, plate cylinder 3 and impression cylinder 2
Between leave the gap passed through for stock.The intaglio plate for printing figure message is provided with plate cylinder 3, with reference to Fig. 2, in printing plate
3 times conflicts of roller are provided with inking roller 4, inking roller 4 is arranged with the ink tank 5 for filling ink, and inking roller 4 is immersed in ink.
During printing, pressure-bearing thing is penetrated between impression cylinder 2 and plate cylinder 3, printing plate is driven by external motive device
Roller 3 rotates, and plate cylinder 3 drives the impression cylinder 2 of lower section inking roller 4 and top to rotate together.Mistake of the inking roller 4 in rotation
Ink is constantly picked in journey from ink tank 5 and is applied to the surface of plate cylinder 3, ink fills up the areas of depression, finally
The ink stored in areas is printed onto on pressure-bearing thing under the pressure of impression cylinder 2.
With reference to Fig. 3, the bottom of ink tank 5 offers oil outlet 50, and oil outlet 50 is arranged with EGR 62, the top of ink tank 5
Petroleum pipeline 61 is stretched into, petroleum pipeline 61 connects pneumatic diaphragm pump 6, and pneumatic diaphragm pump 6 is connected by communicating pipe 60 and EGR 62
It is logical.Ink is from ink tank 5 to EGR 62, from EGR 62 to pneumatic diaphragm pump 6, from pneumatic diaphragm pump 6 to ink tank 5, and week
And renew the circulation for realizing ink.
With reference to Fig. 4, Fig. 5, EGR 62 includes oil exit pipe 620, cylinder 621, screen pack 622, deflector 623, stirring
Blade 624 and stirring motor 625.The lower section of cylinder 621 is provided with support and supported on the ground.Cylinder 621 is hollow structure,
The sewage draining exit 6211 of connection internal cavities is set in the bottom of cylinder 621, dismountable capping 6212 is set on sewage draining exit 6211；Row
Oil pipe 620 is arranged on the top of cylinder 621 and connects the internal cavity of cylinder 621 and the oil outlet 50 of the bottom of ink tank 5.
With reference to Fig. 6, screen pack 622 is provided with cylinder 621, screen pack 622 is located at the opening of oil exit pipe 620.
The lower position of screen pack 622 is provided with two pieces of deflectors being oppositely arranged 623 in cylinder 621, and deflector 623 is in downward
The flow-guiding mouth 6230 of bar shaped is formed between the arc of bending and two pieces of deflectors 623.The lower section of flow-guiding mouth 6230 in cylinder 621
Opening position is provided with agitating shaft, and agitating shaft is horizontally disposed and is arranged along the length direction of flow-guiding mouth 6230, is spaced and sets on agitating shaft
Multiple square plate-shaped agitating blades 624 are put, is stretched out in agitating shaft on one end of cylinder 621 and is fixedly connected with stirring motor 625.Cylinder
The bottom of body 621 is downwardly projecting curved, the collision boss 6210 of more loops is set in the bottom interior wall of cylinder 621, based on cylinder
The shape of the bottom of body 621, multi-turn annular boss form step structure.
In use, ink enters screen pack 622 from oil exit pipe 620, filtered by screen pack 622, from the net of screen pack 622
Wandered at hole onto deflector 623, under the guiding function of deflector 623, cocurrent is collected at flow-guiding mouth 6230 and falls on lower section
Stirring vane 624 on.Stirring vane 624 rapidly rotates under the driving effect of stirring motor 625, and the ink of whereabouts can be continuous
By the shock of stirring vane 624；Hitting the ink after accelerating simultaneously can further impinge upon on collision boss 6210, repeatedly hit
After hitting mixing, the viscosity of ink substantially reduces, and circulation is more smooth.
As described in Figure 7, intaglio press also includes ink-scraping device 7, and ink-scraping device 7 includes gas cleaning assembly 70 and secondary
Cleaning assembly 71.Gas cleaning assembly 70 includes appendix 700, gas collecting jar with ground-on cover plate 701, supply gas cover 702 and dividing plate 703.With reference to figure
8, collective's cylinder is in hollow cylindrical configuration, and both ends are fixedly connected with frame 1 and are horizontal.With reference to Fig. 2, during cover 702 of supplying gas is in
Hollow tube-like structure, its side are fixedly connected with gas collecting jar with ground-on cover plate 701 and connected with gas collecting jar with ground-on cover plate 701, and the opposite side for cover 702 of supplying gas forms air-out
Mouthfuls 7020, air outlet 7020 stays close to plate cylinder 3 and tangent with plate cylinder 3 between air outlet 7020 and plate cylinder 3
There is the gap rotated freely for plate cylinder 3.The cover 702 of supplying gas is overall curved, and its cross section is from one end of gas collecting jar with ground-on cover plate 701 to another
One end tapers into, and the jet direction of air outlet 7020 and linear velocity of the plate cylinder 3 close to gas outlet position are in opposite direction.
As described in Figure 8, multiple dividing plates 703 are arranged at intervals with inside cover 702 of supplying gas, dividing plate 703 has and supplied gas cover 702
Identical radius of curvature, the cover 702 that will supply gas of dividing plate 703 are divided into multiple ventilation cavitys.In use, pressure-air is via appendix
700 enter gas collecting jar with ground-on cover plate 701, then enter cover 702 of supplying gas by gas collecting jar with ground-on cover plate 701, are finally blown out from air outlet 7020, form gas and cut
Knife, gas cutting knife spray against the rotation direction of plate cylinder 3, the ink in the whole surface of plate cylinder 3 are cleared up.Send
The cross section of gas hood 702 tapers into along its jet direction so that the gas flow rate sprayed in from air outlet 7020 uprises, pressure
Become big, lift the cleaning effect to ink.
With reference to Fig. 8, Fig. 9, secondary cleaning assembly 71 includes rotating shaft 710, tool rest 711, doctor 712, mounting seat 713, snail
Bar 714, worm gear 715 and handwheel 716.Mounting seat 713 shares two and fitted in frame 1, and rotating shaft 710 is rotationally connected with two
It is be arranged in parallel between mounting seat 713 and with gas collecting jar with ground-on cover plate 701.Axis of the tool rest 711 along rotating shaft 710 sets and fixed with rotating shaft 710
Connection.Doctor 712 is clamped in tool rest 711, and at the top position for cover 702 of supplying gas, it is made up of elastomeric material,
The overall direction close to plate cylinder 3 is bent, and blade is squeezed on plate cylinder 3.In order that obtaining doctor 712 can effectively scrape off
Ink, the length of doctor 712 is greater than or the length equal to plate cylinder 3.
In use, secondary cleaning assembly 71 coordinates gas cleaning assembly 70 to carry out wiping.After gas cleaning assembly 70 is cleared up
Remaining ink can scrape off plate cylinder 3, rotation direction of the doctor 712 against plate cylinder 3 in the presence of doctor 712
Wiping, the strength of scraping is larger, can clear up the non-graphic part of plate cylinder 3 more clean.
In order to the angle of the regulation doctor 712 of adaptability, worm gear 715, worm gear 715 are connected at the both ends of rotating shaft 710
With the tight fit of rotating shaft 710.The perforate connecting worm 714 in mounting seat 713, worm screw 714 are meshed with worm gear 715 accordingly, snail
One end that bar 714 stretches out mounting seat 713 is fixedly connected with handwheel 716.During by 716 rotary worm 714 of handwheel, worm screw 714 drives
Worm gear 715 rotates, and worm gear 715 drives the doctor 712 in rotating shaft 710 to swing, and the angle of doctor 712 is adjusted.Base
In worm gear 715, the self-locking property of worm screw 714, doctor 712 can be maintained at current location after regulation, and such staff can
The angle of doctor 712 is adjusted with the diameter according to plate cylinder 3.
Simultaneously in order that obtaining doctor 712 can effectively be squeezed on plate cylinder 3 all the time, set at the both ends of rotating shaft 710
Put flexible adjustment component 8.Flexible adjustment component 8 includes U-shaped deck 80, slide link 81, positioning ring 82 and limit spring
83.U-shaped deck 80 is fixedly connected in frame 1, and two through holes are offered between the opening of U-shaped deck 80.Slide link 81
It is arranged in through hole and can slides up and down, the tight fit slide link 81 of positioning ring 82 and taking is placed on the logical of the lower section of U-shaped deck 80
Kong Shang.Limit spring 83 is sheathed on slide link 81 and between U-shaped deck 80, and limit spring 83 is squeezed in positioning ring
On 82.The upper end of slide link 81 is fixedly connected on mounting seat 713.
So under the elastic force effect of limit spring 83, slide link 81 has the trend moved downward always, and then
Slide link 81 brings mounting seat 713 1 trend moved straight down, finally the blade of doctor 712 is effectively squeezed in
On plate cylinder 3, plate cylinder 3 is effectively cleared up.
The intaglio press can be provided simultaneously with the clear ink of jet and doctor 712 wiping, two kinds of ink manner of cleaning up, have
Good clear black effect.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (6)
1. a kind of ink-scraping device of intaglio press, including for installing the intaglio press frame (1) of ink-scraping device (7), machine
Plate cylinder (3) is connected between frame (1), ink-scraping device (7) includes gas cleaning assembly (70), gas cleaning assembly (70) bag
Include appendix (700), gas collecting jar with ground-on cover plate (701) and cover of supplying gas (702), the corresponding printing plate rolling of air outlet (7020) of cover of supplying gas (702)
The tangent line of cylinder (3), it is characterised in that：The ink-scraping device (7) also includes secondary cleaning assembly (71), secondary cleaning assembly (71)
Including rotating shaft (710), tool rest (711), doctor (712) and mounting seat (713), mounting seat (713) has two and is connected to
Frame (1) both sides, rotating shaft (710) be rotationally connected between two mounting seats (713) and with impression cylinder (2) keeping parallelism, knife
Axis of the seat (711) along rotating shaft (710) is fixed, and doctor (712) is clamped and fastened in tool rest (711) and blade is squeezed in printing plate
Roller (3) surface, the air-out direction of cover of supplying gas (702) and the rotation side for scraping wiping direction and plate cylinder (3) of doctor (712)
To on the contrary, plate cylinder (3) dips in and first passes through cover of supplying gas (702) after ink and pass through doctor (712) again.
2. the ink-scraping device of intaglio press according to claim 1, it is characterised in that：The both ends of the rotating shaft (710)
Tight fit has worm gear (715), and worm screw (714) is provided with mounting seat (713), and worm screw (714) engages with worm gear (715), worm screw
(714) one end for passing mounting seat (713) is fixedly connected with handwheel (716).
3. the ink-scraping device of intaglio press according to claim 2, it is characterised in that：The both ends of the rotating shaft (710)
Flexible adjustment component (8) is provided with, flexible adjustment component (8) includes U-shaped deck (80), slide link (81), positioning ring
(82) and limit spring (83), U-shaped deck (80) are fixedly connected in frame (1), are offered between U-shaped deck (80) opening
Two through holes, slide link (81) are arranged in through hole and can slided up and down, positioning ring (82) tight fit slide link (81)
And take and be placed on the through hole of U-shaped deck (80) bottom, limit spring (83) is sheathed on slide link (81) and is located at U-shaped deck
(80) between, limit spring (83) is squeezed on positioning ring (82).
4. the ink-scraping device of intaglio press according to claim 3, it is characterised in that：The cover of supplying gas (702) is overall
Curved, its cross section is gradually reduced from one end of gas collecting jar with ground-on cover plate (701) to close to one end of plate cylinder (3).
5. the ink-scraping device of intaglio press according to claim 4, it is characterised in that：The cover of supplying gas (702) is internal
Multiple dividing plates (703) are arranged at intervals with, dividing plate (703) has and supplied gas cover (702) identical radius of curvature, and dividing plate (703) will
Cover (702) of supplying gas is divided into multiple ventilation cavitys.
6. the ink-scraping device of intaglio press according to claim 5, it is characterised in that：Doctor (712) is by rubber material
Material is made, overall to be bent to close to the direction of plate cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720629952.9U CN206796774U (en) | 2017-06-01 | 2017-06-01 | The ink-scraping device of intaglio press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720629952.9U CN206796774U (en) | 2017-06-01 | 2017-06-01 | The ink-scraping device of intaglio press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206796774U true CN206796774U (en) | 2017-12-26 |
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ID=60744640
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720629952.9U Active CN206796774U (en) | 2017-06-01 | 2017-06-01 | The ink-scraping device of intaglio press |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108162571A (en) * | 2018-02-09 | 2018-06-15 | 朱苗红 | For the ink roller axle journal ink-scraping device of intaglio press ink feeding system |
| CN108263073A (en) * | 2018-01-31 | 2018-07-10 | 重庆华康印务有限公司 | A kind of printing mechanism |
| CN109532226A (en) * | 2018-12-19 | 2019-03-29 | 中山松德印刷机械有限公司 | A kind of printing plate ink-scraping device |
| CN110171188A (en) * | 2019-06-14 | 2019-08-27 | 山东鲁烟莱州印务有限公司 | A kind of scraping knife of intaglio printing press mouth automatic cleaning apparatus and its method for cleaning |
| CN113858784A (en) * | 2021-09-29 | 2021-12-31 | 三付先 | Environment-friendly wrapping bag printing system |
-
2017
- 2017-06-01 CN CN201720629952.9U patent/CN206796774U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108263073A (en) * | 2018-01-31 | 2018-07-10 | 重庆华康印务有限公司 | A kind of printing mechanism |
| CN108162571A (en) * | 2018-02-09 | 2018-06-15 | 朱苗红 | For the ink roller axle journal ink-scraping device of intaglio press ink feeding system |
| CN109532226A (en) * | 2018-12-19 | 2019-03-29 | 中山松德印刷机械有限公司 | A kind of printing plate ink-scraping device |
| CN110171188A (en) * | 2019-06-14 | 2019-08-27 | 山东鲁烟莱州印务有限公司 | A kind of scraping knife of intaglio printing press mouth automatic cleaning apparatus and its method for cleaning |
| CN110171188B (en) * | 2019-06-14 | 2023-11-28 | 山东鲁烟莱州印务有限公司 | Automatic cleaning device and cleaning method for doctor blade opening of gravure press |
| CN113858784A (en) * | 2021-09-29 | 2021-12-31 | 三付先 | Environment-friendly wrapping bag printing system |
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