Electronic axis high speed gravure printing machine
By designing an adjustable filling cavity structure and automatic ink addition system in a gravure printing press, the problem of reducing ink causes lighter patterns during the printing process is solved, and printing efficiency and quality is improved.
Patent Information
- Application Number
- CN202211592277.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-12-13
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2042-12-13
AI Technical Summary
During the continuous printing process of the existing gravure printing press, the ink is fixed in the space of the depression, resulting in the early printing pattern being deeper and the subsequent pattern gradually becoming shallow, affecting the printing quality; at the same time, the ink addition efficiency in the existing technology is low, and excess ink is needed to be frequently scraped off, damage the printing plate, and reduce the printing efficiency.
An electronic shaft high-speed gravure printing press is designed, adopting an adjustable filling cavity structure. Through the cooperation of the expansion bladder and the magnetic roller, the ink is automatically added and the distance between the ink and the printing paper is adjusted, avoiding excessive ink immersion and ensuring printing quality.
It is achieved to maintain consistent pattern depth during continuous printing, improve printing efficiency, avoid plate damage, and ensure the stability of printing quality.
Smart Images

Figure CN116001423B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of printing machines, and in particular to an electronic axis high-speed gravure printing machine. Background Art
[0002] The gravure printing machine is a machine that uses gravure to print. When the gravure printing machine is printing, the entire plate cylinder is inked, and the ink on the blank part of the plate is scraped off with a scraper, leaving the ink on the image part, and then the paper is passed, and the impression cylinder is pressed on the back of the paper, so that the ink in the concave part is directly transferred to the paper surface, and finally the printed matter is stacked or rewound by the paper collection part.
[0003] The existing gravure printing press also has the following problems:
[0004] 1. First of all, for gravure printing machines, as printing continues, the ink stored in the concave part of the printing plate will gradually decrease, but the space of the concave part remains fixed, so that in the continuous printing process, the pattern printed in the early stage is darker, while the subsequent pattern gradually becomes lighter, resulting in inconsistent printing quality. Although the above problems can be avoided by continuously adding ink, frequent addition of ink will reduce printing efficiency;
[0005] 2. Secondly, the existing gravure printing machine usually uses an immersion method to add ink when in use, and after each ink addition, the excess ink needs to be scraped off by a scraper. The efficiency of the entire ink addition is low, and after the scraper scrapes the ink on the printing plate many times, its surface will be damaged to varying degrees, thereby affecting the subsequent printing quality;
[0006] In view of this, we propose an electronic axis high-speed gravure printing machine. Summary of the invention
[0007] In view of the above-mentioned shortcomings of the prior art, the present invention provides an electronic axis high-speed gravure printing machine, which can effectively solve the problem of the gravure printing machine in the prior art that as printing continues, the ink stored in the recessed part of the printing plate will gradually decrease, but the space of the recessed part remains fixed, so that in the continuous printing process, the pattern printed in the early stage is darker, while the subsequent pattern gradually becomes lighter, resulting in inconsistent printing quality. Although the above-mentioned problem can be circumvented by continuously adding ink, frequent addition of ink will lead to reduced printing efficiency; secondly, when the existing gravure printing machine is in use, ink is usually added by immersion, and after each ink addition is completed, excess ink needs to be scraped off with a scraper. The efficiency of the entire ink addition is low, and after the scraper scrapes the ink on the printing plate multiple times, its surface will be damaged to varying degrees, thereby affecting the subsequent printing quality.
[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:
[0009] The present invention provides an electronic axis high-speed gravure printing machine, comprising a frame, a lap plate is fixedly installed on the frame, and a conveying shaft for conveying printing paper is rotatably connected to the frame;
[0010] The printing plate roller is rotatably connected to the frame and driven to rotate by an external motor. A mounting groove is provided in the middle of the printing plate roller, an expandable bladder is provided in the mounting groove, through grooves are evenly penetrated on the outer wall of the mounting groove, a moving block is connected in the through groove through an elastic frame, a magnetic block is fixedly connected to the outer end of the moving block, an ink feed groove is provided in an annular structure on the printing plate roller, the ink feed groove is connected to the through groove through the through groove, and the end of the through groove is connected to the inside of the elastic frame through a conduit, and a one-way valve is installed on the conduit;
[0011] A storage ring is arranged at one side of the plate roller and is used to store ink. The storage ring is connected to the ink inlet groove through an ink inlet pipe, and an oil pump is provided on the storage ring to inject the stored ink into the ink inlet groove through the ink inlet pipe.
[0012] The movable frame is movably connected to the frame body, a partition is fixedly installed in the middle of the movable frame, and a first magnetic roller and a second magnetic roller are respectively arranged on the movable frame with the partition as the symmetry center, and the first magnetic roller is magnetically attracted to the magnetic suction block, while the second magnetic roller is magnetically repelled from the magnetic suction block. The movable frame also includes a piston tube, which is connected to an external air pump through a connecting tube, and a piston rod movably connected in the piston tube is fixedly connected to the movable frame.
[0013] Furthermore, a belt-shaped convex strip is fixedly installed on the outer wall of the sac in a ring-shaped structure, and the convex strip corresponds to the position of the moving block; the sac is connected to the air outlet of the external air pump through a hose; a pressure detector is arranged in the sac to detect the air pressure inside the sac, and the air pressure value can be sent to an external controller, and instructions can be issued to control the operating state of the pump body for injecting air into the sac.
[0014] Furthermore, the moving block, the elastic frame and the inner wall of the through groove form an ink filling cavity for storing ink; when the capsule expands, the convex strips fixedly connected on its outer wall will contact the outer wall of the moving block.
[0015] Furthermore, it also includes an air-drying mechanism for air-drying the ink; the air-drying mechanism includes a box body fixedly connected to the frame, a plurality of air outlet grooves are evenly arranged in the box body, and an air outlet hole connected to the air outlet grooves is also arranged on the box body, and the plurality of air outlet grooves are connected to the output end of an external hot air blower through an air inlet pipe; the air outlet hole is arranged in an inclined structure, and a blocking plate is fixedly installed on the box body on one side of the outlet of the air outlet hole.
[0016] Furthermore, the cleaning roller is rotatably connected to the box body, a circular hole is opened in the middle of the cleaning roller, the circular hole is connected to the air outlet groove through the air flow channel, and a plurality of first channels are evenly opened on the outer wall of the cleaning roller; the cleaning bag is sleeved on the outer wall of the cleaning roller; the cleaning bag and the middle support of the cleaning roller form a sealed cavity.
[0017] Furthermore, a sponge layer is provided on the outer wall of the cleaning capsule, and when the sealed cavity is filled with gas, the sponge layer elastically contacts the outer wall of the printing plate roller, and the sponge layer is filled with alcohol; it also includes a guide plate, which is fixedly mounted on the box body, for guiding the airflow rebounded from the printing paper and acting on the outer wall of the cleaning capsule.
[0018] Beneficial Effects
[0019] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects:
[0020] The present invention provides an adjustable filling cavity on the plate roller, which can flexibly adjust the distance between the ink and the printed object as printing proceeds, thereby ensuring high-quality printing. At the same time, ink can be automatically added to the filling cavity during the printing process without immersing the entire plate roller. Therefore, there is no need to scrape the ink with a scraper, which improves printing efficiency while avoiding damage to the outer wall of the plate roller. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0022] Figure 1 It is a schematic diagram of the overall structure of the gravure printing machine of the present invention;
[0023] Figure 2 It is a partial structural schematic diagram of the gravure printing machine of the present invention;
[0024] Figure 3 It is a structural schematic diagram of the printing plate roller of the present invention;
[0025] Figure 4 It is a structural schematic diagram of the printing plate roller and the movable frame of the present invention when they are separated;
[0026] Figure 5 It is a schematic diagram of the overall explosion structure of the mobile frame of the present invention;
[0027] Figure 6 It is a schematic diagram of the explosion structure of the air-drying mechanism of the present invention;
[0028] Figure 7 For the present invention Figure 6 The enlarged structural diagram at A in the middle;
[0029] Figure 8 It is a schematic diagram of the radial cross-sectional structure of the cleaning roller of the present invention;
[0030] Fig. 9 It is a structural schematic diagram of the printing plate roller and the storage ring when they are separated from each other;
[0031] Fig.10 It is a structural schematic diagram of the printing plate roller and the capsule body when they are separated from each other;
[0032] Fig.11 For the present invention Fig.10 The enlarged structural diagram at B in the middle;
[0033] Fig.12 It is a schematic diagram of the radial cross-section of the printing plate roller of the present invention;
[0034] Fig.13 For the present invention Fig.12 The enlarged structural diagram at C in the middle;
[0035] Reference numerals
[0036] 100, frame; 110, lap plate; 120, conveying shaft;
[0037] 200, plate roller; 201, mounting groove; 202, through groove; 203, through groove; 204, ink inlet groove; 210, capsule; 211, convex strip; 212, hose; 220, moving block; 221, magnetic block; 230, elastic frame; 240, catheter;
[0038] 300, storage ring; 310, ink inlet tube;
[0039] 400, moving frame; 401, partition; 410, first magnetic roller; 420, second magnetic roller; 430, piston tube; 431, connecting tube;
[0040] 500, box body; 501, air outlet groove; 502, air outlet hole; 503, air flow channel; 510, blocking plate; 520, air inlet pipe; 530, guide plate;
[0041] 600, cleaning roller; 601, round hole; 602, first channel;
[0042] 700, cleaning capsule;
[0043] 800. Sealing the cavity. DETAILED DESCRIPTION
[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0045] The present invention will be further described below in conjunction with the embodiments.
[0046] Example:
[0047] See attached Figure 1 -Attached Fig.13 As shown in the figure, an electronic axis high-speed gravure printing machine includes a frame 100, on which a lap plate 110 is fixedly installed, and the frame 100 is also rotatably connected with a conveying shaft 120 for conveying printed paper. Specifically, the frame 100 includes at least one conveying shaft 120 for conveying paper to be printed and other objects to be printed, and a plate roller 200 is also provided on the frame 100, which can rotate with the conveyance of the paper, relying on a through groove 202 opened on the plate roller 200, and ink is placed in the through groove 202, and keeps in contact with the paper during the rotation of the plate roller 200, thereby realizing printing on the paper.
[0048] In the present case, the electronic axis high gravure printing machine is characterized in that it can achieve high-speed printing. However, in the actual use process, the existing gravure printing machine adopts an immersion method to add ink. The gravure is immersed in the ink for adding. During this process, the printing work will also be suspended, resulting in low efficiency. Therefore, in the present case, it is possible to achieve simple addition of ink during the printing process. Specifically, the plate roller 200 is rotatably connected to the frame 100 and is driven to rotate by an external motor. A mounting groove 201 is opened in the middle of the plate roller 200, and through grooves 202 are evenly penetrated on the outer wall of the mounting groove 201. A movable block 220 is connected to the through groove 202 through an elastic frame 230. The outer end of the movable block 220 A magnetic block 221 is fixedly connected, and the movable block 220, the elastic frame 230 and the inner wall of the through groove 202 form an ink filling cavity for storing ink. It should be noted that the magnetic block 221 arranged on the movable block 220 is in a raised state. In the actual printing process, the flatness of the ink surface in the filling cavity can be ensured. In the actual printing process, ink is stored in the filling cavity. In the actual printing process, the ink in the filling cavity will be stained on the printing paper to achieve printing. However, as the printing continues, the ink in the filling cavity will gradually become less. If the space of the filling cavity is kept fixed, as the printing continues, the ink that can adhere to the printing paper will become less, thereby making the printed pattern lighter and affecting the printing quality.
[0049] In order to solve the above problems, in this case, the space of the filling cavity is adaptively adjusted with the printing at different stages. Specifically, an expandable capsule 210 is provided in the mounting groove 201. A convex strip 211 with a band structure is fixedly installed on the outer wall of the capsule 210 in an annular structure. The convex strip 211 corresponds to the position of the moving block 220. The capsule 210 is connected to the air outlet of the external air pump through a hose 212. When the capsule 210 expands, the convex strip 211 fixedly connected on its outer wall will contact the outer wall of the moving block 220. As the printing continues, when the ink in the filling cavity becomes less, a certain amount of gas is injected into the capsule 210. As the gas is injected, the capsule 210 expands, and the convex strip 211 fixedly installed on the outer wall of the capsule 210 contacts the outer wall of the moving block 220. The multiple convex strips 211 on the plate roller 200 will adjust their positions with the movable block 220 movably connected to the plate roller 200, and the moving direction of the movable block 220 is along the radial direction of the plate roller 200, moving outward, so that the space of the originally larger filling cavity will become smaller, and has been adapted to the ink that is constantly decreasing in the filling cavity. As the movable block 220 moves outward, the ink in the filling cavity will be continuously squeezed outward, so that the surface of the ink can always maintain a relatively fixed distance from the outer surface of the plate roller 200. By adopting this method, in the actual printing process, even if the amount of ink becomes less, the ink storage space can be compressed to ensure sufficient contact between the ink and the printing paper, thereby ensuring the quality of printing in the entire printing process.
[0050] As described above, a technical solution is provided to solve the problem that the printed pattern becomes lighter due to less ink during the printing process. In addition, a method of automatically adding ink is also provided in this case. Specifically, an ink inlet groove 204 is provided in a ring-shaped structure on the printing plate roller 200. The ink inlet groove 204 is connected with the through groove 202 through the through groove 203, and the end of the through groove 203 is connected with the inside of the elastic frame 230 through the conduit 240. A pressure detector is provided in the capsule 210 for detecting the internal air pressure of the capsule 210, and the air pressure value can be sent to an external controller, and instructions are issued to control the operating state of the pump body for injecting air into the capsule 210, and a one-way valve is installed on the conduit 240; a storage ring 300 is provided on one side of the printing plate roller 200 for storing ink. The storage ring 300 is connected with the ink inlet groove 204 through the ink inlet tube 310, and an oil pump is provided on the storage ring 300 for injecting the stored ink into the ink inlet groove 204 through the ink inlet tube 310. In actual use of the gravure printing machine, when the capsule 210 expands to a certain extent, the pressure detector arranged in the capsule 210 can detect the internal pressure of the capsule 210. When the pressure reaches a certain specific value, an external controller can issue a command when the air pressure reaches a certain threshold value, so that the pump body that injects air into the capsule 210 stops running (this part involves PLC control program, etc., as a common control method, it will not be repeated in this case). At this time, the capsule 210 gradually recovers under the action of its own elastic force. In this process, the moving block 220 that was originally squeezed by the capsule 210 stops moving outward and is gradually reset under the action of the elastic frame 230. At this time, the space of the filling cavity continues to increase. In this process, the external pump body will add ink to the filling cavity. Specifically, this installation is located at the printing plate A storage ring 300 is provided on one side of the roller 200, and the storage ring 300 is filled with ink. When the oil pump is running, the ink will enter the ink inlet groove 204 through the provided ink inlet tube 310, and it is worth mentioning that the control signal of the oil pump is also issued by the above-mentioned controller. It can be understood that when the capsule 210 shrinks and recovers, the oil pump starts to run, so that the ink can re-enter the filling cavity. Specifically, the ink flows in the following way: from the storage ring 300 into the ink inlet tube 310, and then into the ink inlet groove 204. Combined with the connection relationship between the ink inlet groove 204 and the through groove 203, and the connection relationship between the through groove 203 and the conduit 240, the ink will eventually pass through the elastic frame 230 into the filling cavity to realize the re-addition of ink. It is worth mentioning that during the ink adding process, the plate roller 200 still keeps rotating.
[0051] As mentioned above, the gravure printing machine provided in this case can realize the uninterrupted addition of ink during the printing process. In this process, the distance between the ink surface and the outer wall of the printing plate roller 200 changes dynamically with the change of the filling cavity space. In this process, the printing quality needs to be guaranteed. Therefore, in this case, during the printing process, the first magnetic roller 410 and the second magnetic roller 420 are provided to ensure the stability of printing. Specifically, the frame 100 is movably connected to the movable frame 400, and the middle part of the movable frame 400 is fixedly installed with a partition 401. With the partition 401 as the symmetric center, the movable frame 400 is respectively A first magnetic roller 410 and a second magnetic roller 420 are provided, and the first magnetic roller 410 is magnetically attracted to the magnetic block 221, while the second magnetic roller 420 is magnetically repelled from the magnetic block 221. In the actual printing process, when the plate roller 200 is in the state, when the moving block 220 movably connected in the plate roller 200 is close to the first magnetic roller 410, the magnetic block 221 fixedly mounted on the moving block 220 is magnetically attracted to the first magnetic roller 410, so that the space of the filling cavity is compressed, thereby ensuring that the ink can fully contact the printing paper, and a certain pressure is generated between the two to achieve printing. It is worth mentioning that long-term pressure contact between ink and printing paper will cause the ink to penetrate the printing paper, resulting in over-printing, which will have a certain negative impact on the printing quality (the degree of this negative impact varies depending on the printed object). For this reason, in this case, a second magnetic roller 420 is also included, which can be understood as being used to reduce the contact between ink and printing paper, effectively avoiding over-printing while ensuring the printing effect. Specifically, the second magnetic roller 420 and the magnetic suction block 221 are magnetically repelled. When the printing plate roller 200 rotates, the moving block 220 magnetically adsorbed by the first magnetic roller 410 will be magnetically repelled and then moved away from the printing paper. At this time, the space of the filling cavity becomes larger, and the ink surface is away from the printing paper, thereby effectively avoiding the problem of over-printing.
[0052] As mentioned above, by setting the first magnetic roller 410 and the second magnetic roller 420, under the premise of ensuring sufficient printing, overprinting can also be avoided. The adjustment method is to control the space size of the filling cavity, and then control the contact degree between the ink and the printing paper, so as to achieve high-quality printing. As mentioned above, as the printing continues, in order to ensure sufficient contact between the ink and the printing paper, the filling cavity space will gradually become smaller under the action of the capsule 210. Under this premise, if the first magnetic roller 410 and the second magnetic roller 420 are kept at a fixed distance from the printing plate roller 200, then in the early stage of printing, under the action of the same magnetic adsorption force, when the amount of ink in the filling cavity is large, the ink will penetrate deeper into the printing paper during the magnetic adsorption process, which will also cause uneven printing quality. Therefore, in this case , and also includes a piston tube 430, which is connected to an external air pump through a connecting tube 431. The piston rod movably connected in the piston tube 430 is fixedly connected to the movable frame 400. Through the external air pump, combined with the arranged piston tube 430, the distance between the first magnetic roller 410 and the second magnetic roller 420 and the printing plate roller 200 can be adjusted. The lap plate 110 fixedly connected to the frame body 100 can achieve effective support for the movable frame 400, and the adjustment of the adsorption force is achieved by expanding the distance. The specific adjustment process is as follows: as the capsule 210 continues to expand, the arranged movable frame 400 gradually approaches the printing plate roller 200 from a position far away from the printing plate roller 200, thereby achieving that when the ink in the filling cavity becomes less, the magnetic adsorption force becomes larger, thereby ensuring the printing quality.
[0053] In the present case, an air-drying mechanism is also included for air-drying the ink; the air-drying mechanism includes a box body 500 fixedly connected to the frame body 100, a plurality of air outlet grooves 501 are evenly provided in the box body 500, and an air outlet hole 502 connected to the air outlet grooves 501 is also provided on the box body 500, and the plurality of air outlet grooves 501 are all connected to the output end of the external hot air blower through the air inlet pipe 520; the air outlet hole 502 is arranged in an inclined structure, and a blocking plate 510 is fixedly installed on the box body 500 on the outlet side of the air outlet hole 502. Specifically, when the external hot air blower is running, combined with the set connection relationship, the hot air will be blown from the set air outlet hole 502 to the printing paper, and the set blocking plate 510 can prevent the airflow from affecting the ink in the filling cavity.
[0054] In the present case, by flexibly adjusting the filling cavity space and combining it with the automatic inking method, the ink appearing on the surface of the printing plate roller 200 can be greatly reduced. However, in actual use, there will still be corresponding ink residue at the edge of the filling cavity. Therefore, a cleaning roller 600 is rotatably connected to the box body 500. A circular hole 601 is opened in the middle of the cleaning roller 600. The circular hole 601 is connected to the air outlet groove 501 through the air flow channel 503. A plurality of first channels 602 are evenly opened on the outer wall of the cleaning roller 600; a cleaning bag 700 is sleeved on the outer wall of the cleaning roller 600; the cleaning bag 700 and the middle support of the cleaning roller 600 form a sealed cavity 800, and a sponge layer is provided on the outer wall of the cleaning bag 700, and when the sealed cavity 800 is filled with gas, the sponge layer and The outer wall of the printing plate roller 200 is in elastic contact, and the sponge layer is filled with alcohol; it also includes a guide plate 530, which is fixedly installed on the box body 500, and is used to guide the airflow rebounded from the printing paper and act on the outer wall of the cleaning bag 700. Specifically, in actual use, when the hot air blower is in working state, combined with the set air flow channel 503, part of the hot air will enter the sealed cavity 800, support the cleaning bag 700 sleeved on the outer wall of the cleaning roller 600, so that the sponge layer set on the outer wall of the cleaning bag 700 can be close to the outer wall of the printing plate roller 200, and in this process, through the set guide plate 530, part of the hot air will act on the sponge layer, and because the sponge layer is filled with alcohol, the ink on the surface of the sponge layer can be absorbed into it, thereby ensuring the cleaning effect.
[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.
Claims
1. An electronic axis high-speed gravure printing machine, characterized in that: include: A frame (100), a lap plate (110) being fixedly mounted on the frame (100), and a conveying shaft (120) for conveying printing paper being rotatably connected to the frame (100); A printing plate roller (200) is rotatably connected to the frame (100) and is driven to rotate by an external motor. A mounting groove (201) is provided in the middle of the printing plate roller (200). An expandable bladder (210) is provided in the mounting groove (201). Through grooves (202) are evenly penetrated on the outer wall of the mounting groove (201). A moving block (220) is connected in the through groove (202) via an elastic frame (230). A magnetic block (221) is fixedly connected to the outer end of the moving block (220). An ink feed groove (204) is provided in an annular structure on the printing plate roller (200). The ink feed groove (204) is connected to the through groove (202) via a through groove (203), and an end of the through groove (203) is connected to the inside of the elastic frame (230) via a conduit (240). A one-way valve is installed on the conduit (240). A storage ring (300) is arranged at one side of the printing plate roller (200) and is used to store ink. The storage ring (300) is connected to the ink inlet groove (204) via an ink inlet tube (310), and an oil pump is provided on the storage ring (300) and is used to inject the stored ink into the ink inlet groove (204) via the ink inlet tube (310); The movable frame (400) is movably connected to the frame body (100), a partition (401) is fixedly installed in the middle of the movable frame (400), and a first magnetic roller (410) and a second magnetic roller (420) are respectively arranged on the movable frame (400) with the partition (401) as the symmetry center, and the first magnetic roller (410) and the magnetic attraction block (221) are magnetically attracted, while the second magnetic roller (420) and the magnetic attraction block (221) are magnetically repelled, and the movable frame (400) further includes a piston tube (430), the piston tube (430) is connected to an external air pump through a connecting tube (431), and a piston rod movably connected in the piston tube (430) is fixedly connected to the movable frame (400).
2. The electronic axis high-speed gravure printing machine according to claim 1, characterized in that: A convex strip (211) with a band-like structure is fixedly mounted on the outer wall of the capsule (210) in an annular structure, and the convex strip (211) corresponds to the position of the moving block (220); The capsule (210) is connected to an air outlet of an external air pump via a hose (212); A pressure detector is arranged inside the bladder (210) for detecting the internal air pressure of the bladder (210), and is capable of sending the air pressure value to an external controller and issuing instructions to control the operating state of a pump body for injecting air into the bladder (210).
3. The electronic axis high-speed gravure printing machine according to claim 2, characterized in that: The moving block (220), the elastic frame (230) and the inner wall of the through groove (202) form an ink filling cavity for storing ink; When the capsule (210) expands, the convex strips (211) fixedly connected on the outer wall of the capsule (210) will contact the outer wall of the moving block (220).
4. The electronic axis high-speed gravure printing machine according to claim 1, characterized in that: Also includes an air drying mechanism for air drying the ink; The air drying mechanism comprises a box body (500) fixedly connected to the frame body (100), a plurality of air outlet grooves (501) are evenly arranged in the box body (500), an air outlet hole (502) connected to the air outlet grooves (501) is also arranged on the box body (500), and the plurality of air outlet grooves (501) are all connected to the output end of an external hot air blower through an air inlet pipe (520); The air outlet hole (502) is arranged in an inclined structure, and a blocking plate (510) is fixedly mounted on the box body (500) on one side of the outlet of the air outlet hole (502).
5. The electronic axis high-speed gravure printing machine according to claim 4, characterized in that: Also includes: A cleaning roller (600) is rotatably connected to the box body (500); a circular hole (601) is provided in the middle of the cleaning roller (600); the circular hole (601) is connected to the air outlet groove (501) through an air flow channel (503); and a plurality of first channels (602) are evenly provided on the outer wall of the cleaning roller (600); A cleaning capsule (700) is sleeved on the outer wall of the cleaning roller (600); The cleaning capsule (700) and the middle part of the cleaning roller (600) are supported to form a sealed cavity (800).
6. The electronic axis high-speed gravure printing machine according to claim 5, characterized in that: A sponge layer is provided on the outer wall of the cleaning capsule (700), and when the sealed cavity (800) is filled with gas, the sponge layer elastically contacts the outer wall of the printing plate roller (200), and the sponge layer is filled with alcohol; It also includes a guide plate (530) fixedly mounted on the box body (500) and used to guide the airflow rebounding from the printing paper and act on the outer wall of the cleaning capsule (700).
Citation Information
Patent Citations
Photogravure press, ink scraping device and ink scraping method
CN111070858A
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CN114407503A
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