CN112046129B - High-precision machining device and method for gravure roller - Google Patents
High-precision machining device and method for gravure roller Download PDFInfo
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- CN112046129B CN112046129B CN202010820031.7A CN202010820031A CN112046129B CN 112046129 B CN112046129 B CN 112046129B CN 202010820031 A CN202010820031 A CN 202010820031A CN 112046129 B CN112046129 B CN 112046129B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/10—Forme cylinders
- B41F13/11—Gravure cylinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/2414—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for indicating desired positions guiding the positioning of tools or workpieces
- B23Q17/2419—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for indicating desired positions guiding the positioning of tools or workpieces by projecting a single light beam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/02—Engraving; Heads therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Manufacturing & Machinery (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Abstract
The invention relates to a high-precision machining device and method for a gravure roller, wherein the machining device comprises a pit depth detection mechanism and an engraving mechanism, the pit depth detection mechanism comprises the gravure roller, a template roller and a power assembly for driving the gravure roller to rotate, a plurality of pits are uniformly formed in the outer surface of the gravure roller, a plurality of convex blocks with the same shape and size are uniformly and fixedly connected to the outer surface of the template roller, and the template roller is elastically arranged on one side of the gravure roller and is meshed with the convex blocks through the pits. A laser generator is arranged below the gravure roller and the template roller, a curtain used for displaying light beams is arranged above the gravure roller and the template roller, light rays emitted by the laser generator penetrate through the space between the template roller and the gravure roller and are projected on the curtain, and the engraving mechanism is used for milling the depth of the pits. Milling size data are obtained firstly, and then the engraving mechanism is used for milling the gravure roller, so that the depth of each pit is the same, the ink quantity of each pattern on a printing stock is the same, and the quality of a printed matter is improved.
Description
Technical Field
The invention relates to the technical field of gravure printing, in particular to a high-precision machining device and method for a gravure roller.
Background
The intaglio printing is that the surface of the plate of the whole intaglio roller is coated with ink, then the ink on the surface is removed by a special ink scraping mechanism, so that the ink is only remained in the cells of the intaglio roller, and then the ink is transferred to the surface of a printing stock under the action of larger pressure, so as to obtain a printed matter.
In the prior art, an engraving machine is generally used to engrave a plurality of pits with the same pattern on the surface of a gravure roll. However, when a gravure roll is processed, the engraving machine tool is worn and processing and positioning errors exist, so that pits processed on the surface of the gravure roll are different in depth.
The above prior art solutions have the following drawbacks: when the gravure roller is used for printing operation, the phenomenon of uneven picture density on a printing stock can be inevitably caused due to different ink quantities of all pits. The pits are deeper, so that more ink is contained, and an ink layer left on the printed object after stamping is thicker; the shallower the pits, the less the amount of ink contained, and the thinner the ink layer left on the substrate after stamping. Therefore, the quality of the printed matter is greatly reduced, and a high-precision gravure roll processing device and a method thereof are urgently needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a high-precision machining device and method for a gravure roller.
The above object of the present invention is achieved by the following technical solutions:
a high-precision machining device for a gravure roller comprises a pit depth detection mechanism and an engraving mechanism, wherein the pit depth detection mechanism comprises the gravure roller, a template roller and a power assembly for driving the gravure roller to rotate, a plurality of pits are uniformly formed in the outer surface of the gravure roller, a plurality of convex blocks with the same shape and size are uniformly and fixedly connected to the outer surface of the template roller, and the template roller is elastically arranged on one side of the gravure roller and is meshed with the convex blocks through the pits;
gravure roller with the below of template roller is provided with laser generator, gravure roller with the top of template roller is provided with the curtain that is used for display beam, the light warp that laser generator sent template roller with pass between the gravure roller and throw on the curtain, sculpture mechanism is used for milling the degree of depth of pit.
Through the technical scheme, the power assembly drives the gravure roller to rotate, the convex blocks and the concave pits are meshed with each other, so that the gravure roller drives the template roller to rotate, and the laser generator is started to enable light beams to be projected between the gravure roller and the template roller. When the depth of one pit on the gravure roller is detected to be shallow, the gravure roller extrudes the template roller to move towards the direction far away from the gravure roller, and the distance between the gravure roller and the outer side wall of the template roller is the size data of the pit to be milled. And because the laser is in linear transmission, the laser beam passes through the gap and is projected on the curtain, the width of the laser beam on the curtain is measured to obtain milled size data, and then the engraving mechanism is used for milling the gravure roller to enable the depth of each pit to be the same, so that the ink quantity of each pattern on a printing stock is the same, and the quality of a printed matter is improved.
The present invention in a preferred example may be further configured to: the pit depth detection mechanism further comprises an L-shaped supporting platform and two U-shaped plates, one end of the opening of each U-shaped plate is fixedly connected to the side wall of the supporting platform, two ends of each template roller are fixedly connected with transmission shafts, bearings are arranged on the transmission shafts, and the bearings are slidably embedded in sliding grooves of the U-shaped plates;
the bearing is fixedly connected with a thrust plate, a spring is fixedly connected between the thrust plate and the side wall of the supporting platform, and the spring is in a natural state when the gravure roller is inosculated with the outer side wall of the template roller.
Through the technical scheme, when the depth of the pits on the gravure roller is shallow, the gravure roller extrudes the template roller to move rightwards in the U-shaped plate, the bearing drives the thrust plate to compress the spring, the spring is compressed to shrink and accumulate elastic force, and a gap is formed between the gravure roller and the template roller. When the gravure roller is rotated to be matched with the outer side wall of the template roller, the gap disappears, and the spring naturally recovers to provide power to drive the template roller to move leftwards and be attached to the gravure roller, so that the template roller can be stably meshed with the gravure roller for transmission, and the practicability is improved.
The present invention in a preferred example may be further configured to: one side of the thrust plate, which is far away from the bearing, is fixedly connected with a control rod, an alarm is arranged on the side wall of the supporting platform, and one end, which is far away from the thrust plate, of the control rod is used for opening and closing the alarm.
Through the technical scheme, the thrust plate moves rightwards to drive the control rod to abut against the switch of the alarm, and when the alarm is turned on, a worker is convenient to be reminded of marking and recording the milling position and the milling depth data of the gravure roller. When the outer side walls of the gravure roller and the template roller are mutually attached, the control rod is not contacted with the alarm, and the alarm is in a closed state, so that the template roller can stably rotate at the same position.
The present invention in a preferred example may be further configured to: the power assembly comprises a variable frequency motor and a transmission belt, a rotating shaft is fixedly connected to the gravure roller, one end of the rotating shaft is coaxially and fixedly connected with a turntable, the variable frequency motor is arranged on the supporting platform, and the transmission belt is tensioned and sleeved between the turntable and an output shaft of the variable frequency motor.
Through the technical scheme, the output shaft of the variable frequency motor rotates, the gravure roller is driven to rotate through the transmission belt and the turntable, the variable frequency motor can adjust the rotating speed of the output shaft, each pit depth on the gravure roller can be detected, and the processing precision of the gravure roller is further improved.
A high-precision processing method of a gravure roller comprises the following steps:
step S1, measuring the milling depth, meshing the gravure roller and the template roller with each other, driving a variable frequency motor to drive the gravure roller to rotate slowly, and simultaneously turning on a laser generator, wherein light generated by the laser generator passes through a gap between the template roller and the gravure roller to act on a curtain, so that size data to be milled is obtained from the curtain;
step S2, milling, namely, installing and fixing the gravure roller on a clamp on a numerical control lathe, inputting the size data into the numerical control lathe, and milling to obtain the gravure roller with the same depth of each pit;
and step S3, performing chromium plating treatment, namely cleaning and degreasing the outer surface of the gravure roll, forming a hard chromium layer on the surface of the copper layer after the treatment of the chromium plating process, and storing the gravure roll in a warehouse after polishing by a polishing machine.
According to the technical scheme, the depth of each pit on the gravure roller is detected through the pit depth detection mechanism, and when the depth of a certain pit does not meet the requirement, the width of the light beam projected by the laser generator on the curtain is measured to obtain the size data needing milling. The gravure roller is milled by the numerical control lathe, so that the depth of each pit is the same, the ink quantity of each pattern on a printing stock is the same, and the quality of a printed matter is improved. Meanwhile, the copper has poor hardness and is easily scratched by a scraper during printing, so that the copper layer on the surface of the printing plate can be free from damage by plating a hard chromium layer on the surface of the copper layer, and the service life of the gravure roller is prolonged.
The present invention in a preferred example may be further configured to: in step S1, the curtain is provided with scale marks for measuring the laser width, which is the same as the milled size data.
Through above-mentioned technical scheme, through observing the position of light book on the scale mark, the dimensional data that needs mill that can be quick acquisition has improved work efficiency.
The present invention in a preferred example may be further configured to: in the step S2, the hard chrome layer has a thickness of 10 μm.
Through the technical scheme, the hard chromium layer with the thickness of 10 mu m can not only ensure the printing durability of the printing plate, but also ensure that the hard chromium layer does not influence the size data of the outer surface of the gravure roller, thereby improving the quality of products.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the power assembly drives the gravure roller to rotate, the convex blocks are meshed with the concave pits to enable the gravure roller to drive the template roller to rotate, and the laser generator is started to enable light beams to be projected between the gravure roller and the template roller. When the depth of one pit on the gravure roller is detected to be shallow, the gravure roller extrudes the template roller to move towards the direction far away from the gravure roller, and the distance between the gravure roller and the outer side wall of the template roller is the size data of the pit to be milled. And because the laser is in linear transmission, the laser beam passes through the gap and is projected on the curtain, the width of the laser beam on the curtain is measured to obtain milled size data, and then the engraving mechanism is used for milling the gravure roller to enable the depth of each pit to be the same, so that the ink quantity of each pattern on a printing stock is the same, and the quality of a printed matter is improved.
2. When the depth of the pits on the gravure roller is shallow, the gravure roller extrudes the template roller to move rightwards in the U-shaped plate, the bearing drives the thrust plate to compress the spring, the spring is compressed and contracted to accumulate elastic force, and a gap is formed between the gravure roller and the template roller. When the gravure roller is rotated to be matched with the outer side wall of the template roller, the gap disappears, and the spring naturally recovers to provide power to drive the template roller to move leftwards and be attached to the gravure roller, so that the template roller can be stably meshed with the gravure roller for transmission, and the practicability is improved.
3. The thrust plate moves rightwards to drive the control rod to abut against a switch of the alarm, and when the alarm is turned on, a worker is reminded of marking and recording milling positions and milling depth data of the gravure roller. When the outer side walls of the gravure roller and the template roller are mutually attached, the control rod is not contacted with the alarm, and the alarm is in a closed state, so that the template roller can stably rotate at the same position.
Drawings
Fig. 1 is a schematic view showing the overall structure of a pit depth detection mechanism according to the present invention.
FIG. 2 is a schematic flow chart showing a high-precision processing method of a gravure roll according to the present invention.
Reference numerals: 11. a gravure roller; 111. a pit; 112. a rotating shaft; 113. a turntable; 12. a stencil roller; 121. a bump; 122. a drive shaft; 123. a bearing; 124. a thrust plate; 125. a spring; 126. a control lever; 127. an alarm; 13. a power assembly; 131. a variable frequency motor; 132. a transmission belt; 14. a support platform; 15. a U-shaped plate; 2. a laser generator; 3. a curtain.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the high-precision machining device for the gravure roller 11 disclosed by the invention comprises a pit 111 depth detection mechanism and an engraving mechanism, wherein the pit 111 depth detection mechanism comprises the gravure roller 11, a template roller 12 and a power assembly 13 for driving the gravure roller 11 to rotate, a plurality of pits 111 are uniformly formed in the outer surface of the gravure roller 11, a plurality of bumps 121 with the same shape and size are uniformly and fixedly connected to the outer surface of the template roller 12, and the template roller 12 is elastically arranged on one side of the gravure roller 11 and is meshed with the bumps 121 through the pits 111.
The laser generator 2 is arranged below the gravure roller 11 and the template roller 12, the curtain 3 for displaying light beams is arranged above the gravure roller 11 and the template roller 12, light rays emitted by the laser generator 2 penetrate through the space between the template roller 12 and the gravure roller 11 and are projected onto the curtain 3, and the engraving mechanism is used for milling the depth of the concave pit 111.
Referring to fig. 1, the pit 111 depth detection mechanism further includes an "L" shaped supporting platform 14 and two U-shaped plates 15, one end of an opening of each U-shaped plate 15 is fixedly connected to a side wall of the supporting platform 14, two ends of each template roller 12 are fixedly connected with a transmission shaft 122, a bearing 123 is arranged on each transmission shaft 122, and each bearing 123 is slidably embedded in a sliding groove of each U-shaped plate 15. A spring 125 is fixedly connected between the thrust plate 124 and the side wall of the support platform 14, and when the gravure roller 11 is fitted to the outer side wall of the stencil roller 12, the spring 125 is in a natural state.
When the depth of the pit 111 on the gravure roll 11 is small, the gravure roll 11 presses the stencil roll 12 to move rightward in the U-shaped plate 15, the bearing 123 drives the thrust plate 124 to compress the spring 125, the spring 125 is compressed to contract and accumulate the elastic force, and a gap is formed between the gravure roll 11 and the stencil roll 12. When the gravure roller 11 is rotated to be matched with the outer side wall of the template roller 12, the gap disappears, and the spring 125 naturally recovers to provide power to drive the template roller 12 to move leftwards and be attached to the gravure roller 11, so that the template roller 12 can be stably meshed with the gravure roller 11 for transmission, and the practicability is improved.
Referring to fig. 1, a control rod 126 is fixedly connected to a side of the thrust plate 124 away from the bearing 123, an alarm 127 is disposed on a side wall of the supporting platform 14, and an end of the control rod 126 away from the thrust plate 124 is used for turning on and off the alarm 127. The thrust plate 124 moves right to drive the control rod 126 to abut on a switch of the alarm 127, and when the alarm 127 is turned on, the alarm is convenient for reminding a worker to mark and record the milling position and milling depth data of the gravure roll 11. When the gravure roll 11 and the outer side wall of the stencil roll 12 are fitted to each other, the lever 126 does not contact the alarm 127, and the alarm 127 is in an off state, so that the stencil roll 12 can be stably rotated at the same position.
Further, the power assembly 13 includes a variable frequency motor 131 and a transmission belt 132, the gravure roller 11 is fixedly connected with the rotating shafts 112, one end of one of the rotating shafts 112 is coaxially and fixedly connected with the turntable 113, the variable frequency motor 131 is arranged on the supporting platform 14, and the transmission belt 132 is tightly sleeved between the turntable 113 and an output shaft of the variable frequency motor 131. The output shaft of the variable frequency motor 131 rotates, the gravure roller 11 is driven to rotate by the transmission belt 132 and the turntable 113, the variable frequency motor 131 can adjust the rotating speed of the output shaft, the depth of each pit 111 on the gravure roller 11 can be detected, and the processing precision of the gravure roller 11 is further improved.
Referring to fig. 2, a high-precision processing method of a gravure roll 11 includes the steps of:
step S1, measuring the milling depth, meshing the gravure roller 11 and the template roller 12 with each other, driving the variable frequency motor 131 to drive the gravure roller 11 to rotate slowly, simultaneously opening the laser generator 2, enabling light generated by the laser generator 2 to pass through a gap between the template roller 12 and the gravure roller 11 and act on the curtain 3, and obtaining size data to be milled from the curtain 3;
step S2, milling, namely, installing and fixing the gravure roller 11 on a clamp on a numerical control lathe, inputting size data into the numerical control lathe, and milling to obtain the gravure roller 11 with the same depth of each pit 111;
and step S3, performing chromium plating treatment, namely cleaning and degreasing the outer surface of the gravure roll 11, forming a hard chromium layer on the surface of the copper layer after the treatment of the chromium plating process, and storing the gravure roll 11 in a warehouse after polishing by a polishing machine.
The depth of each pit 111 on the gravure roller 11 is detected by the pit 111 depth detection mechanism, and when the depth of one pit 111 does not meet the requirement, the width of the light beam projected by the laser generator 2 on the curtain 3 is measured to obtain the size data to be milled. The gravure roller 11 is milled through the numerical control lathe, so that the depth of each pit 111 is the same, the ink quantity of each pattern on a printing stock is the same, and the quality of a printed matter is improved. Meanwhile, the copper has poor hardness and is easily scratched by a scraper during printing, so that the copper layer on the surface of the printing plate can be free from damage by plating a hard chromium layer on the surface of the copper layer, and the service life of the gravure roller 11 is prolonged.
In step S1, the curtain 3 is provided with scale marks for measuring the laser width, which is the same as the milled dimensional data. By observing the position of the light book on the scale mark, the size data needing milling can be quickly obtained, and the working efficiency is improved. In step S2, the thickness of the hard chrome layer is 10 μm, and the hard chrome layer with a thickness of 10 μm can not only ensure the printing durability of the printing plate, but also prevent the hard chrome layer from affecting the size data of the outer surface of the gravure roll 11, thereby improving the quality of the product.
The implementation principle of the embodiment is as follows: the power assembly 13 drives the gravure roll 11 to rotate, the convex blocks 121 and the concave pits 111 are meshed with each other, so that the gravure roll 11 drives the template roll 12 to rotate, and the laser generator 2 is turned on, so that light beams are projected between the gravure roll 11 and the template roll 12. When the fact that the depth of one pit 111 on the gravure roller 11 is shallow is detected, the gravure roller 11 extrudes the template roller 12 to move towards the direction far away from the gravure roller 11, and at this time, the distance between the gravure roller 11 and the outer side wall of the template roller 12 is size data of the pit 111 to be milled.
And because the laser is the straight line transmission, the laser beam passes through the gap and throws on the curtain 3, measure the width of laser beam on the curtain 3 and obtain the size data milled, and then mill gravure roller 11 through the engraving mechanism and make the degree of depth of every pit 111 the same, realize that the printing ink volume of every pattern on the stock is the same, improved the quality of printed matter.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (4)
1. The utility model provides a high accuracy processingequipment of gravure roller which characterized in that: the device comprises a pit (111) depth detection mechanism and an engraving mechanism, wherein the pit (111) depth detection mechanism comprises a gravure roller (11), a template roller (12) and a power assembly (13) for driving the gravure roller (11) to rotate, a plurality of pits (111) are uniformly formed in the outer surface of the gravure roller (11), a plurality of bumps (121) with the same shape and size are uniformly and fixedly connected to the outer surface of the template roller (12), and the template roller (12) is elastically arranged on one side of the gravure roller (11) and is meshed with the bumps (121) through the pits (111);
a laser generator (2) is arranged below the gravure roller (11) and the template roller (12), a curtain (3) for displaying light beams is arranged above the gravure roller (11) and the template roller (12), light emitted by the laser generator (2) passes through the space between the template roller (12) and the gravure roller (11) and is projected on the curtain (3), and the engraving mechanism is used for milling the depth of the pit (111);
the pit (111) depth detection mechanism further comprises an L-shaped supporting platform (14) and two U-shaped plates (15), one end of an opening of each U-shaped plate (15) is fixedly connected to the side wall of the corresponding supporting platform (14), two ends of each template roller (12) are fixedly connected with transmission shafts (122), bearings (123) are arranged on the transmission shafts (122), and the bearings (123) are embedded in sliding grooves of the U-shaped plates (15) in a sliding mode;
a thrust plate (124) is fixedly connected to the bearing (123), a spring (125) is fixedly connected between the thrust plate (124) and the side wall of the supporting platform (14), and when the gravure roller (11) is fitted with the outer side wall of the template roller (12), the spring (125) is in a natural state;
a control rod (126) is fixedly connected to one side, away from the bearing (123), of the thrust plate (124), an alarm (127) is arranged on the side wall of the supporting platform (14), and one end, away from the thrust plate (124), of the control rod (126) is used for opening and closing the alarm (127);
the power assembly (13) comprises a variable frequency motor (131) and a transmission belt (132), a rotating shaft (112) is fixedly connected onto the gravure roller (11), one of the rotating shaft (112) is fixedly connected with a turntable (113) coaxially at one end, the variable frequency motor (131) is arranged on the supporting platform (14), and the transmission belt (132) is tensioned and sleeved between the turntable (113) and an output shaft of the variable frequency motor (131).
2. A high-precision processing method using a gravure roll according to claim 1, characterized in that: the method comprises the following steps:
step S1, measuring the milling depth, mutually engaging the gravure roller (11) with the template roller (12), driving the variable frequency motor (131) to drive the gravure roller (11) to slowly rotate, simultaneously opening the laser generator (2), enabling light generated by the laser generator (2) to pass through a gap between the template roller (12) and the gravure roller (11) to act on the curtain (3), and obtaining size data to be milled from the curtain (3);
step S2, milling, namely, installing and fixing the gravure roller (11) on a clamp on a numerical control lathe, inputting the size data into the numerical control lathe, and milling to obtain the gravure roller (11) with the same depth of each pit (111);
and S3, performing chromium plating treatment, namely cleaning and degreasing the outer surface of the gravure roll (11), forming a hard chromium layer on the surface of the copper layer after the chromium plating treatment, and polishing the gravure roll (11) by using a polishing machine and then warehousing for storage.
3. The high-precision processing method for a gravure roll according to claim 2, characterized in that: in the step S1, the curtain (3) is provided with scale marks for measuring the laser width, which is the same as the milled size data.
4. The high-precision processing method for a gravure roll according to claim 2, characterized in that: in the step S2, the hard chrome layer has a thickness of 10 μm.
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| CN202010820031.7A CN112046129B (en) | 2020-08-14 | 2020-08-14 | High-precision machining device and method for gravure roller |
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| CN202010820031.7A CN112046129B (en) | 2020-08-14 | 2020-08-14 | High-precision machining device and method for gravure roller |
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| CN112046129A CN112046129A (en) | 2020-12-08 |
| CN112046129B true CN112046129B (en) | 2022-05-20 |
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