CN109572155A - A kind of intaglio press - Google Patents
A kind of intaglio press Download PDFInfo
- Publication number
- CN109572155A CN109572155A CN201910078348.5A CN201910078348A CN109572155A CN 109572155 A CN109572155 A CN 109572155A CN 201910078348 A CN201910078348 A CN 201910078348A CN 109572155 A CN109572155 A CN 109572155A
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- Prior art keywords
- ink
- plate
- cylinder
- scraping
- printing
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- 238000007639 printing Methods 0.000 claims abstract description 88
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 238000007790 scraping Methods 0.000 claims description 69
- 238000005498 polishing Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 11
- 238000007646 gravure printing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F9/00—Rotary intaglio printing presses
- B41F9/06—Details
- B41F9/08—Wiping mechanisms
- B41F9/10—Doctors, scrapers, or like devices
- B41F9/109—Doctors, scrapers, or like devices exchanging doctor blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F9/00—Rotary intaglio printing presses
- B41F9/06—Details
- B41F9/08—Wiping mechanisms
- B41F9/16—Removing or recovering ink from wiping mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Rotary Presses (AREA)
Abstract
The invention belongs to printing equipment technology, specifically a kind of intaglio press, including casing, the controller for being mounted on for the power device of printing machine operating on rear side of casing and working for controlling printing machine, it further include the feed roll being rotatably arranged on casing, discharging roller, guidance roller group, ink tank, ink roller, plate cylinder and impression cylinder, and the ink wiping mechanism being arranged on casing；Stock successively bypasses feed roll, guidance roller group, impression cylinder and discharging roller；Pass through the cooperation between the screw rod of multiple groups, No. two servo motors and U-shaped folder plate; doctor is replaced under non-stop-machine state to realize; allow the prolonged efficient operation of printing machine, the case where damaged fracture will not occur in printing machine doctor after working long hours.
Description
Technical Field
The invention belongs to the technical field of printing equipment, and particularly relates to an intaglio printing press.
Background
Printing is a technique of transferring ink to the surface of a material such as paper, fabric, plastic, or leather by performing processes such as plate making, inking, and pressing on an original such as characters, pictures, photographs, or forgery prevention, and thereby mass-transferring the content of the original. Printing is the process of transferring the approved printing plate to the printing stock by printing machine and special ink.
An intaglio printing press is a machine that performs printing using intaglio plates. The image-text part of the printing plate is concave, the blank part and the excircle of the printing plate cylinder are on the same plane, when the gravure printing machine prints, the whole plate surface of the printing plate cylinder is inked, the ink of the blank part on the plate surface is scraped off by a doctor blade, the ink of the image-text part is left, then the paper is fed, the back surface of the paper is stamped by the stamping cylinder, the ink of the concave part is directly transferred to the paper surface, and finally, the printed matter is piled or rewound by the paper collecting part.
In the prior art, the ink scraping knife needs to scrape ink on a plate cylinder, the ink scraping knife can bear larger pressure when in use, the ink scraping knife is easy to generate metal fatigue and damage and fracture due to long-time work of a printing machine, normal production is influenced, meanwhile, the ink has adhesiveness, and the ink scraping effect can be easily influenced after the ink is adhered below the ink scraping knife for too long time; so that the technical solution is limited.
Disclosure of Invention
In order to make up the defects of the prior art, the problems that the scraping blade is easy to generate metal fatigue and is damaged and broken due to long-time work of the printing machine, and the scraping effect is easy to be influenced due to overlong time after ink is adhered below the scraping blade are solved; the invention provides an intaglio printing press.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an intaglio printing press, which comprises a shell, a power device arranged at the rear side of the shell and used for operating the printing press, a controller used for controlling the operation of the printing press, a feeding roller, a discharging roller, a guide roller group, an ink groove, an ink roller, a printing plate roller, an impression roller and an ink scraping mechanism, wherein the feeding roller, the discharging roller, the guide roller group, the ink groove, the ink roller, the printing plate roller and the impression roller are rotatably arranged on the shell; the printing stock sequentially bypasses the feeding roller, the guide roller group, the impression roller and the discharging roller; the ink tank is arranged at the bottom of the shell, and an ink roller is arranged in the ink tank; a printing plate cylinder is arranged above the ink cylinder and used for uniformly coating the ink in the ink groove on the printing plate cylinder; the printing plate cylinder is provided with a scraping mechanism which is used for scraping off ink on the blank part of the printing plate cylinder and leaving ink in image-text gravure, the printing plate cylinder is arranged below the impression cylinder, the printing plate cylinder is contacted with the front side of a printing stock, and the impression cylinder imprints on the back side of the printing stock; wherein,
the ink scraping mechanism comprises an ink scraping roller, an air cylinder, a mounting plate, a first servo motor, a mounting seat, a mounting groove, a U-shaped clamping plate, a positioning plate, a supporting plate, a doctor blade, a second servo motor, a screw and a polishing unit; the mounting plate is provided with an output end of the air cylinder; the fixed end of the cylinder is fixedly connected to the inner wall of the shell, and the cylinder is used for pushing the mounting plate to move; the first servo motor is fixedly connected to the mounting plate, one end of the ink scraping roller is fixedly connected to an output shaft of the first servo motor, and the other end of the ink scraping roller is rotatably arranged on the mounting plate; the ink scraping roller is provided with a mounting seat, and one side of the mounting seat close to the printing plate roller is provided with a plurality of mounting grooves; a U-shaped clamping plate is arranged in the mounting groove in a sliding manner; a doctor blade and a supporting plate are clamped between the U-shaped clamping plates; the supporting plate is positioned above the doctor blade and used for supporting the doctor blade; the ink scraping knife is used for scraping off ink on a blank part on the printing surface of the printing plate cylinder; the second servo motor is fixedly connected to one side, away from the ink scraping knife, of the U-shaped clamp plate, the output end of the second servo motor is fixedly connected with a screw rod through a coupler, the screw rod threads penetrate through a threaded hole formed in the side wall of the mounting groove, and the second servo motor is used for driving the U-shaped clamp plate to retract into the mounting groove; the polishing unit is arranged inside the mounting groove and is used for polishing the doctor blade; the angle of the doctor blade is adjusted by controlling the rotation of the first servo motor, the distance between the doctor blade and the plate cylinder is adjusted by controlling the stretching of the air cylinder, so that the doctor blade is better adjusted, when the doctor blade needs to be replaced, the doctor blade cylinder only needs to be controlled to rotate anticlockwise by controlling the first servo motor, so that a larger space is reserved for replacing the doctor blade; the second servo motor drives the screw to rotate, so that the screw is displaced in the threaded hole, the U-shaped clamping plate is pushed out through the matching among the screw, the second servo motor and the U-shaped clamping plate, and the U-shaped clamping plate drives the ink scraping knife to be in contact with the printing plate cylinder, so that efficient ink scraping is realized; reach after preset's numerical value when the doctor uses long, No. two servo motor rotate and drive another doctor and stretch out and contact with the plate cylinder, realize high-efficient wiping, No. two last servo motor drive use long longer doctor is withdrawed this moment, thereby realize changing the doctor under the state of not shutting down, make the high-efficient work that the printing machine can be long-time, when withdrawing, the unit of polishing can once polish the doctor, make the doctor more level and more smooth, thereby keep the high-efficient wiping effect.
Preferably, the grinding unit comprises a first oilstone, a second oilstone and a first spring; the first oilstone is arranged in a first groove formed in the top wall of the mounting groove in a sliding manner, and the first oilstone is connected in the first groove through a first spring; no. two oilstone sliding connection is in No. two recesses that the mounting groove diapire was seted up, and No. two oilstones pass through No. two spring coupling in No. two recesses, and the left side of No. two oilstones and an oilstone is the arc setting to stretch out of ink scraping knife. When No. two servo motor drive the doctor blade and withdraw in the mounting groove, the upside at the doctor blade is pushed down in the promotion of a spring to an oilstone, polishes the side of going up of doctor blade, and No. two oilstones push down the downside at the doctor blade in the promotion of No. two springs, polish the downside of doctor blade to guarantee the roughness of doctor blade, make the doctor blade can keep the efficient ink scraping effect.
Preferably, the right side of the second oilstone is arranged in an arc shape, and the second oilstone is used for scraping off ink adhered to the lower side of the ink scraping blade. When the scraping blade is retracted into the mounting groove, the ink adhered to the lower side of the scraping blade can be scraped by the second oilstone, and the influence on the use of the scraping blade caused by the dry and caked ink on the scraping blade is avoided.
Preferably, a plurality of through holes, a through hole and recess intercommunication have been seted up on the arc right side wall of No. two oilstones, and the diapire of recess is through No. two through-holes and backflow channel intercommunication, and backflow channel sets up in the mount pad, is provided with backflow pipeline on the backflow channel, and backflow pipeline is used for getting back to the printing ink water conservancy diversion in the printing ink groove. Ink scraped by the oilstone II enters the groove through the through hole I, flows into the backflow channel through the through hole II, and then flows back to the ink tank through the backflow pipeline, so that waste of the ink is avoided, and the cost is saved.
Preferably, the backflow channel is of a cylindrical structure, a magnetic piston is arranged in the backflow channel in a sliding mode, one end of a third spring is arranged on the left side of the piston, the other end of the third spring is arranged on the side wall of the backflow channel, a magnet is arranged on the lower side of the doctor blade, and the magnet is used for attracting the piston to slide. When the ink scraping knife is withdrawing the mounting groove, the magnet of ink scraping knife downside can attract and have magnetic piston, make the piston move left, can make the negative pressure in the backward flow passageway when the piston moves left, the backward flow passageway can be with being inhaled the backward flow passageway by the printing ink that No. two have the oilstone to scrape in, avoid printing ink circulation not smooth condition including a through-hole and No. two through-holes, when magnet continues to slide simultaneously, No. three spring is greater than the attraction of magnet to the piston when the thrust of magnet, the piston breaks away from the attraction of magnet and moves right under the promotion of No. three spring, pass through backflow pipeline pressure retraction printing ink groove with printing ink in the backward flow passageway, avoid printing ink to block up backflow pipeline.
Preferably, the mounting seat is provided with at least three doctor blades, and angles formed by the plurality of doctor blades and a tangent line of the plate cylinder are equal, so that the same doctor effect is ensured.
The invention has the following beneficial effects:
1. according to the gravure printing machine, the ink scraping knife is replaced under the non-stop state through the cooperation of the plurality of groups of screws, the second servo motor and the U-shaped clamping plates, so that the printing machine can work efficiently for a long time, and the ink scraping knife cannot be damaged or broken after the printing machine works for a long time.
2. According to the gravure printing machine, the magnetic piston is attracted by the magnet on the lower side of the doctor blade, the situation that ink is not smoothly circulated in the first through hole and the second through hole is avoided, and meanwhile, the ink in the backflow channel is compressed back to the ink tank through the backflow pipeline through the cooperation between the piston and the third spring, so that the cost is saved, and meanwhile, the backflow pipeline is prevented from being blocked by the ink.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3 at C;
in the figure: casing 1, feed cylinder 2, ejection of compact cylinder 3, guide roller group 4, ink tank 5, ink cylinder 6, plate cylinder 7, impression cylinder 8, wiping mechanism 9, wiping cylinder 91, mounting panel 92, mount pad 93, mounting groove 94, U-shaped splint 95, backup pad 96, doctor blade 97, screw 98, unit 99 that polishes, oilstone 991, oilstone 992 No. two, No. one through-hole 993, No. two through-holes 994, backflow channel 995, piston 996, magnet 997.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the intaglio printing press according to the present invention comprises a casing 1, a power device installed at the rear side of the casing 1 for operating the printing press, a controller for controlling the operation of the printing press, a feeding cylinder 2, a discharging cylinder 3, a guide roller set 4, an ink tank 5, an ink cylinder 6, a plate cylinder 7 and an impression cylinder 8 rotatably installed on the casing 1, and a wiping mechanism 9 installed on the casing 1; the printing stock sequentially bypasses the feeding roller 2, the guide roller group 4, the impression roller 8 and the discharging roller 3; the ink tank 5 is arranged at the bottom of the machine shell 1, and an ink roller 6 is arranged in the ink tank 5; a plate cylinder 7 is arranged above the ink cylinder 6, and the ink cylinder 6 is used for uniformly coating the ink in the ink tank 5 on the plate cylinder 7; the printing plate cylinder 7 is provided with a wiping mechanism 9, the wiping mechanism 9 is used for wiping off ink on a blank part on the surface of the printing plate cylinder 7 and leaving ink in image-text gravure, the printing plate cylinder 7 is arranged below the impression cylinder 8, the printing plate cylinder 7 is contacted with the front surface of a printing stock, and the impression cylinder 8 imprints on the back surface of the printing stock; wherein,
the ink scraping mechanism 9 comprises an ink scraping roller 91, an air cylinder, a mounting plate 92, a first servo motor, a mounting seat 93, a mounting groove 94, a U-shaped clamping plate 95, a positioning plate, a supporting plate 96, an ink scraping knife 97, a second servo motor, a screw 98 and a polishing unit 99; the mounting plate 92 is provided with an output end of a cylinder; the fixed end of the cylinder is fixedly connected to the inner wall of the machine shell 1, and the cylinder is used for pushing the mounting plate 92 to move; the first servo motor is fixedly connected to the mounting plate 92, one end of the ink scraping roller 91 is fixedly connected to an output shaft of the first servo motor, and the other end of the ink scraping roller 91 is rotatably arranged on the mounting plate 92; the ink scraping roller 91 is provided with a mounting seat 93, and one side of the mounting seat 93 close to the plate roller 7 is provided with a plurality of mounting grooves 94; a U-shaped clamping plate 95 is arranged in the mounting groove 94 in a sliding manner; a doctor blade 97 and a supporting plate 96 are clamped between the U-shaped clamping plates 95; the supporting plate 96 is positioned above the doctor blade 97, and the supporting plate 96 is used for supporting the doctor blade 97; the scraping blade 97 is used for scraping off the ink of the blank part on the printing surface of the plate cylinder 7; the second servo motor is fixedly connected to one side, away from the doctor blade 97, of the U-shaped clamp plate 95, the output end of the second servo motor is fixedly connected with a screw rod 98 through a coupler, the screw rod 98 penetrates through a threaded hole formed in the side wall of the mounting groove 94 in a threaded manner, and the second servo motor is used for driving the U-shaped clamp plate 95 to retract into the mounting groove 94; the grinding unit 99 is arranged inside the mounting groove 94, and the grinding unit 99 is used for grinding the doctor blade 97; the angle of the doctor blade 97 is adjusted by controlling the rotation of the first servo motor, the distance between the doctor blade 97 and the plate cylinder 7 is adjusted by controlling the extension and retraction of the cylinder, so that the doctor blade 97 is better adjusted, when the doctor blade 97 needs to be replaced, the doctor blade 97 only needs to be controlled to rotate the doctor cylinder 91 anticlockwise, so that a larger space is reserved for replacing the doctor blade 97; the second servo motor drives the screw rod 98 to rotate, so that the screw rod 98 is displaced in the threaded hole, the U-shaped clamping plate 95 is pushed out through the cooperation of the screw rod 98, the second servo motor and the U-shaped clamping plate 95, and the U-shaped clamping plate 95 drives the doctor blade 97 to be in contact with the plate cylinder 7, so that efficient ink scraping is realized; reach after the numerical value of preset when doctor 97 uses long, No. two servo motor rotate and drive another doctor 97 and stretch out and contact with plate cylinder 7, realize high-efficient wiping, No. two last servo motor drive use long longer doctor 97 withdraws this moment, thereby realize changing doctor 97 under the state of not shutting down, make the high-efficient work that the printing machine can be long-time, when withdrawing, the unit 99 of polishing can once polish doctor 97, make doctor 97 more level and smooth, thereby keep efficient wiping effect.
As an embodiment of the present invention, the grinding unit 99 includes a first oilstone 991, a second oilstone 992, and a first spring; the first oilstone 991 is slidably arranged in a first groove formed in the top wall of the mounting groove 94, and the first oilstone 991 is connected in the first groove through a first spring; no. two oilstone 992 sliding connection is in No. two recesses that the mounting groove 94 diapire was seted up, and No. two oilstones 992 are in No. two recesses through No. two spring coupling, and No. two oilstones 992 and No. one oilstone 991's left side is the arc setting to be convenient for stretching out of ink scraper 97. When No. two servo motor drive doctor blade 97 pieces withdraw in the mounting groove 94, an oilstone 991 pushes down the upside at doctor blade 97 in the promotion of a spring, polish the side of going up of doctor blade 97, No. two oilstones 992 push down the downside at doctor blade 97 in the promotion of No. two springs, polish the downside of doctor blade 97, thereby guarantee doctor blade 97's roughness, make doctor blade 97 can keep the efficient ink scraping effect.
In one embodiment of the present invention, the right side of the second oil stone 992 is curved, and the second oil stone 992 is used for scraping off ink adhered to the lower side of the doctor blade 97. When the scraping blade 97 is retracted into the mounting groove 94, the second oilstone 992 can scrape ink adhered to the lower side of the scraping blade 97, and the ink is prevented from being dried and agglomerated on the scraping blade 97 to affect the use of the scraping blade 97.
As an embodiment of the present invention, the second oilstone 992 has a plurality of first through holes 993 formed on an arc-shaped right side wall thereof, the first through holes 993 are communicated with the grooves, a bottom wall of the groove is communicated with the return channel 995 through the second through hole 994, the return channel 995 is opened in the mounting seat 93, and the return channel 995 is provided with a return conduit for guiding the ink back into the ink tank 5. Ink scraped by the oilstone II enters the groove through the through hole 993I, flows into the backflow channel 995 through the through hole 994 II and flows back to the ink tank 5 through the backflow pipeline, so that the waste of the ink is avoided, and the cost is saved.
In one embodiment of the present invention, the backflow channel 995 has a cylindrical structure, a magnetic piston 996 is slidably disposed in the backflow channel 995, one end of a third spring is disposed on the left side of the piston 996, the other end of the third spring is disposed on the side wall of the backflow channel 995, and a magnet 997 is disposed on the lower side of the doctor blade 97, and the magnet 997 is used for attracting the piston 996 to slide. When the ink scraper 97 is retracted into the mounting groove 94, the magnet 997 on the lower side of the ink scraper 97 attracts the magnetic piston 996, so that the piston 996 moves leftwards, negative pressure is generated in the backflow channel 995 when the piston 996 moves leftwards, at this time, the backflow channel 995 can suck ink scraped by the second oilstone into the backflow channel 995, the situation that the ink is not smoothly circulated in the first through hole 993 and the second through hole 994 is avoided, and meanwhile, when the magnet 997 continues to slide, the thrust of the third spring on the piston 996 is greater than the attraction of the magnet 997 on the piston 996, the piston 996 gets rid of the attraction of the magnet 997 and moves rightwards under the push of the third spring, and the ink in the backflow channel 995 is compressed into the ink return groove 5 through the backflow channel, so that the ink is prevented from blocking the backflow channel.
In one embodiment of the present invention, at least three doctor blades 97 are provided on the mounting seat 93, and the angles formed by the plurality of doctor blades 97 and the tangent line of the plate cylinder 7 are all equal, so as to ensure the same doctor effect.
During working, printing stocks sequentially bypass the feeding roller 2, the guide roller group 4, the impression roller 8 and the discharging roller 3; starting a power rotating shaft to drive the feeding cylinder 2, the guide roller set 4, the impression cylinder 8 and the discharging cylinder 3 to rotate in a matched mode, uniformly coating ink in an ink groove 5 on the printing plate cylinder 7 by the ink cylinder 6, simultaneously scraping ink in a blank part of the surface of the printing plate cylinder 7 by the ink scraping mechanism 9, leaving ink in image-text gravure, and impressing the image-text on the front surface of a printing stock through the mutual matching of the printing plate cylinder 7 and the impression cylinder 8; the angle of the doctor blade 97 is adjusted by controlling the rotation of the first servo motor, the distance between the doctor blade 97 and the plate cylinder 7 is adjusted by controlling the extension and retraction of the cylinder, so that the doctor blade 97 is better adjusted, when the doctor blade 97 needs to be replaced, the doctor blade 97 only needs to be controlled to rotate the doctor cylinder 91 anticlockwise, so that a larger space is reserved for replacing the doctor blade 97; the second servo motor drives the screw rod 98 to rotate, so that the screw rod 98 is displaced in the threaded hole, the U-shaped clamping plate 95 is pushed out through the cooperation of the screw rod 98, the second servo motor and the U-shaped clamping plate 95, and the U-shaped clamping plate 95 drives the doctor blade 97 to be in contact with the plate cylinder 7, so that efficient ink scraping is realized; when the service life of the doctor blade 97 reaches a preset value, the second servo motor rotates to drive the other doctor blade 97 to extend out and contact with the plate cylinder 7, so as to realize high-efficiency ink scraping, at the moment, the previous second servo motor drives the doctor blade 97 with longer service life to retract, thereby realizing the replacement of the doctor blade 97 under the state of no shutdown, leading the printing machine to work efficiently for a long time, while retracting, the first oilstone 991 is pushed by the first spring to press against the upper side of the doctor blade 97, the upper side surface of the doctor blade 97 is polished, the second oilstone 992 is pushed by the second spring to press the lower side of the doctor blade 97, the lower side surface of the doctor blade 97 is polished, so that the flatness of the doctor blade 97 is ensured, the doctor blade 97 can keep an efficient doctor effect, the doctor blade 97 is smoother, and the efficient doctor effect is kept; no. two oilstones 992 can scrape off the printing ink of doctor blade 97 piece downside adhesion, avoid printing ink dry caking back on doctor blade 97 piece, influence the use of doctor blade 97 piece, have the printing ink of oilstone scraping by No. two in entering the recess through a through-hole 993, and flow into backflow channel 995 through No. two through-holes 994, in rethread backflow pipeline flowed back to ink reservoir 5, avoided the waste of printing ink, practiced thrift the cost.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
Claims (6)
1. An intaglio printing press comprising a casing (1), a power unit mounted on the rear side of the casing (1) for operating the press and a controller for controlling the operation of the press, characterized in that: the printing machine also comprises a feeding roller (2), a discharging roller (3), a guide roller set (4), an ink groove (5), an ink roller (6), a printing plate roller (7) and an impression roller (8) which are rotatably arranged on the machine shell (1), and a scraping mechanism (9) arranged on the machine shell (1); the ink tank (5) is arranged at the bottom of the machine shell (1), and an ink roller (6) is arranged in the ink tank (5); a plate cylinder (7) is arranged above the ink cylinder (6), and the ink cylinder (6) is used for uniformly coating the ink in the ink tank (5) on the plate cylinder (7); the printing plate cylinder (7) is provided with a scraping mechanism (9), the scraping mechanism (9) is used for scraping off ink on the blank part of the printing plate cylinder (7) and leaving ink in image-text gravure, the printing plate cylinder (7) is arranged below the impression cylinder (8), the printing plate cylinder (7) is contacted with the front side of a printing stock, and the impression cylinder (8) impresses on the back side of the printing stock; wherein,
the ink scraping mechanism (9) comprises an ink scraping roller (91), an air cylinder, a mounting plate (92), a first servo motor, a mounting seat (93), a mounting groove (94), a U-shaped clamping plate (95), a supporting plate (96), an ink scraping knife (97), a second servo motor, a screw rod (98) and a polishing unit (99); the mounting plate (92) is provided with an output end of an air cylinder; the fixed end of the cylinder is fixedly connected to the inner wall of the shell (1), and the cylinder is used for pushing the mounting plate (92) to move; the first servo motor is fixedly connected to the mounting plate (92), one end of the ink scraping roller (91) is fixedly connected to an output shaft of the first servo motor, and the other end of the ink scraping roller (91) is rotatably arranged on the mounting plate (92); the ink scraping roller (91) is provided with a mounting seat (93), and one side of the mounting seat (93) close to the plate roller (7) is provided with a plurality of mounting grooves (94); a U-shaped clamping plate (95) is arranged in the mounting groove (94) in a sliding manner; a doctor blade (97) and a supporting plate (96) are clamped between the U-shaped clamping plates (95); the supporting plate (96) is positioned above the doctor blade (97), and the supporting plate (96) is used for supporting the doctor blade (97); the scraping blade (97) is used for scraping off ink at a blank part on the printing surface of the plate cylinder (7); the second servo motor is fixedly connected to one side, away from the doctor blade (97), of the U-shaped clamp plate (95), the output end of the second servo motor is fixedly connected with a screw rod (98) through a coupler, the screw rod (98) penetrates through a threaded hole formed in the side wall of the mounting groove (94) in a threaded mode, and the second servo motor is used for driving the U-shaped clamp plate (95) to retract into the mounting groove (94); the polishing unit (99) is arranged inside the mounting groove (94), and the polishing unit (99) is used for polishing the doctor blade (97).
2. An intaglio printing press according to claim 1, characterized in that: the grinding unit (99) comprises a first oilstone (991), a second oilstone (992) and a first spring; the first oilstone (991) is arranged in a first groove formed in the top wall of the mounting groove (94) in a sliding mode, and the first oilstone (991) is connected into the first groove through a first spring; no. two oilstone (992) sliding connection is in No. two recesses that mounting groove (94) diapire was seted up, and No. two oilstone (992) are through No. two spring coupling in No. two recesses, and the left side of No. two oilstones (992) and an oilstone (991) is the arc setting to be convenient for stretching out of ink scraping knife (97).
3. An intaglio printing press according to claim 2, characterized in that: no. two oilstone (992)'s right side is the arc setting, and No. two oilstone (992) are used for scraping off the printing ink of doctor blade (97) downside adhesion.
4. An intaglio printing press according to claim 3, characterized in that: seted up a plurality of through-hole (993) on the arc right side wall of No. two oilstones (992), No. one through-hole (993) and recess intercommunication, the diapire of recess is through No. two through-holes (994) and backflow channel (995) intercommunication, and backflow channel (995) are seted up in mount pad (93), are provided with backflow pipeline on backflow channel (995), and backflow pipeline is used for getting back to the printing ink water conservancy diversion in printing ink groove (5).
5. The intaglio printing press according to claim 4, wherein: backflow channel (995) is the cylindric structure, and backflow channel (995) slides and is provided with magnetic piston (996), and the left side of piston (996) is provided with the one end of No. three springs, and the other end of No. three springs sets up on the lateral wall of backflow channel (995), just the downside of doctor blade (97) is provided with magnet (997), and magnet (997) are used for attracting piston (996) to slide.
6. An intaglio printing press according to claim 1, characterized in that: the mounting seat (93) is at least provided with three scraping blades (97), and the angles formed by the scraping blades (97) and the tangent line of the plate cylinder (7) are equal.
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| CN111002695A (en) * | 2019-11-07 | 2020-04-14 | 吉林工程技术师范学院 | Ink scraping device of gravure printing machine |
| CN112046127A (en) * | 2020-10-12 | 2020-12-08 | 成都明杰科技有限公司 | Use method of inking device of gravure printing machine |
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| CN111002695A (en) * | 2019-11-07 | 2020-04-14 | 吉林工程技术师范学院 | Ink scraping device of gravure printing machine |
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| CN114701242A (en) * | 2022-04-29 | 2022-07-05 | 杭州锦尚新材料有限公司 | Gravure printing roller pressing mechanism of gravure printing machine |
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