CN113752673A - Registration device for printing overprint cursors on laser light beam paper and use method thereof - Google Patents
Registration device for printing overprint cursors on laser light beam paper and use method thereof Download PDFInfo
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- CN113752673A CN113752673A CN202111042855.7A CN202111042855A CN113752673A CN 113752673 A CN113752673 A CN 113752673A CN 202111042855 A CN202111042855 A CN 202111042855A CN 113752673 A CN113752673 A CN 113752673A
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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
- B41F9/002—Sheet printing presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0009—Central control units
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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
Abstract
The invention discloses a registering device for printing a overprint cursor on laser light column paper and a using method thereof, and relates to the technical field of laser paper printing of a web gravure printing machine. The registering device comprises an automatic color registering control system of the gravure press, and further comprises a registering electric eye support (1), a filter frame (2) and an electric eye adjusting frame (3), wherein the filter frame (2) consists of a filter mounting opening (15) and a double-layer filter (17). The use method of the registration device comprises the following steps: (1) installing a registered electric eye optical fiber; (2) installing a double-layer optical filter; (3) selecting laser beam paper registration parameters; (4) printing and adjusting a registration cursor; (5) adjusting the printing oscillogram; (6) and (4) automatically controlling printing overprinting. Compared with the existing cigarette label printing technology, the invention uses one printing color group for printing the ground color, can reduce the production cost such as the ink consumption and the power consumption, does not need to widen the laser paper of the light beam by 15mm, and avoids the waste of cigarette label paper.
Description
Technical Field
The technology relates to the technical field of laser paper printing of a web gravure printing machine, in particular to a registration device for printing a registration mark on laser paper on a DT-3000 registration system of Japan Sun corporation and a use method thereof.
Background
The gravure printing is the most common printing mode, and compared with other types of printing, the gravure printing has the characteristics of bright color, high anti-counterfeiting property, high printing resistance, seamless property, high-speed continuous printing and the like. Therefore, the web gravure press is mainly suitable for printing large-batch color artworks and security prints, cigarette labels, wine labels and the like. The existing commonly used electronic shaft unit type gravure printing machine has the characteristics of small floor area, short pre-registration time, high printing speed, capability of re-registering and the like.
The working principle of the automatic chromatography control system is that a photoelectric scanning head (namely, a registration electric eye) on each color group detects the transverse and longitudinal position change between a reference color group triangular cursor printed on paper and a natural color group triangular cursor to output an instruction to a natural color group servo motor, a printing plate roller is pulled by the color group transverse servo motor to control transverse chromatography, and the synchronous speed of the color group main servo motor and a host is changed to control longitudinal chromatography. Two optical fibers are arranged on one photoelectric scanning head, one optical fiber is used for reading the reference color cursor signal, and the other optical fiber is used for reading the natural color group cursor signal. Typically, the first color set is used as the reference color set. The cursor signal is a signal reflected by a light source of the registration system after irradiating the cursor with different colors on the paper through the optical fiber, so the ground colors of the positions of the printed cursors are required to be consistent, otherwise, the cursor reflection signals at the same position are different because of the interference of abnormal reflection signals on the paper.
The existing cigarette label printing production mainly uses white cardboard and white copper plate paper, and the reflected light of the base paper of the two kinds of paper is almost unchanged in the printing process, so that the photoelectric signal of a registration system is very stable. However, some printed products use special paper such as gold card paper, silver card paper, laser paper, etc., and in the printing process of this type of paper, the change of the reflected light of the base paper is large, especially the change of the laser paper with the light beam is the largest. The laser paper of the light beam has strong reflected light and large change of the intensity of the reflected light, so that the photoelectric automatic control registration system is greatly interfered and printing can not be normally registered. Therefore, when printing with the laser paper, it is necessary to add a base color to print, print the base color with the same width as the cursor on the position of the printing cursor to cover the laser paper, print the overprint cursor on the base color, and make the reflected light and electric signals of the paper near the position of the detection cursor completely consistent, so as to make the printing registration system work stably. However, this results in that when printing with the laser paper with light beam, a color set must be added to the normal printing color set for overprinting the base color of the cursor position. Such printing processes necessarily increase equipment length and power consumption, as well as increasing ink and solvent costs. Some manufacturers can only require the manufacturers to widen the base paper roll by 15mm because the gravure printing machine does not have redundant color groups, the laser film is not added on the base paper with the thickness of 15mm, and the overprint cursor is printed on the base paper with the thickness of 15mm, so that the influence of the light-emitting column of the laser paper on the normal cursor is avoided. But this adds significantly to the cost of the paper. The cigarette label produced by the company has 8 colors in the normal printing process, and the problem of widening the base paper by 15mm is faced when the cigarette label is produced on a Sonde SAY820C8 type gravure press with only 8 printing color groups.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a registration device for printing a overprint cursor on laser light column paper, and the technical problem to be solved is that when a DT-3000 registration system is used for printing a laser paper cigarette standard, a printing color group for printing ground colors is not required to be added, or 15mm is not required to be widened for the laser light column paper, so that the waste of cigarette standard paper is avoided.
Another object of the present invention is to provide a method for using a registration apparatus for printing a registration mark on a laser paper.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a register device of overprinting cursor seal on radium-shine light column paper, includes the automatic chromatography control system of gravure press, automatic chromatography control system include servo motor, register electric eye optic fibre, register electric eye signal gain control box, register electric eye signal gain change over switch and register parameter setting interface register touch-sensitive screen, its characterized in that: the device also comprises a registration electric eye support, a filter frame and an electric eye adjusting frame, wherein the left side of the registration electric eye support is provided with an upper common white cardboard electric eye optical fiber mounting port and a lower common white cardboard electric eye optical fiber mounting port which are inserted in an inserting mode, the right side of the registration electric eye support is provided with an upper laser light column paper electric eye optical fiber mounting port and a lower laser light column paper electric eye optical fiber mounting port which are inserted in an inclined mode, the back side of the registration electric eye support is provided with an upper registration electric eye cursor signal acquisition port and a locking screw used for mounting the filter frame, the filter frame consists of an optical filter mounting port and a double-layer optical filter, the double-layer optical filter consists of a polarizing optical filter A and a polarizing optical filter B, the electric eye adjusting frame consists of a mounting clamping groove, an electric eye transverse locking screw and an electric eye front and rear fine adjusting screw, the electric eye adjusting frame is mounted on an electric eye adjusting frame mounting rod through the mounting groove and the transverse locking screw, and two ends of the electric eye adjusting frame mounting rod are fixed on a printing color group wallboard of the gravure press, the registered electric eye support is fixed on the upper part of the electric eye adjusting frame.
The invention relates to a using method of a registering device for printing a overprint cursor on laser light column paper, which is characterized by comprising the following steps: the using method comprises the following steps:
(1) installing a registered electric eye optical fiber: inserting the registration electric eye optical fiber into the electric eye optical fiber installation port of the laser light column paper, exposing the electric eye head from the registration electric eye cursor signal acquisition port, emitting an electric eye light source from the electric eye head to irradiate the laser light column paper, and reflecting a reflection signal on the paper back to the electric eye head from the registration electric eye cursor signal acquisition port;
(2) installing a double-layer optical filter: mounting the filter holder with the double-layer filter on the registering electric eye support, and fixing the filter holder by using a locking screw to ensure that the distance between the double-layer filter and the laser beam paper is 4-6 mm;
(3) selecting laser light beam paper registration parameters: dialing a registration electric eye signal gain change-over switch at a laser beam paper gear, calling out a registration parameter setting interface on a parameter setting registration touch screen, selecting standard registration parameters when printing the laser beam paper, adjusting longitudinal fine tuning offset from 0.5mm set by a system to 0.3mm, adjusting transverse fine tuning offset from 0.5mm set by the system to 0.3mm, keeping other parameters unchanged, and shielding detected interference waves out of the adjustment action of the registration system through parameter adjustment;
(4) printing and adjusting a registration cursor: the paper feeding path and the operation mode of the laser light column paper are not different from those of ordinary times, after the equipment is started, the laser light column paper roll is discharged from an uncoiler and then is fed by a driving roller, the laser light column paper roll is transmitted between a printing plate roller and an embossing rubber roll through a paper passing roller, the embossing rubber roll compacts the paper on the printing plate roller, an engraved pattern and an engraved cursor on the printing plate roller are transferred onto the paper through printing ink, a register electric eye is transversely adjusted to a cursor printing position, when the reflected light signal is obviously changed due to the fact that the printed cursor on the paper runs to the position below a register electric eye cursor signal acquisition port, the photoelectric conversion control box converts the reflected light signal into an electric signal and transmits the electric signal to an automatic register control system, and a printing cursor waveform graph is displayed through a parameter setting register touch screen;
(5) adjusting a printing waveform diagram: switching the interface of the parameter setting registration touch screen to a printing oscillogram interface, adjusting the waveforms of the color set cursor to be consistent when repeated appearance is required according to the adjustment of the waveform effect, and carrying out fine adjustment through fine adjustment screws in front and back of an electric eye until a stable oscillogram with the best printing overprinting effect is achieved;
(6) automatic control of printing overprinting: after the color set is registered with the pattern of the reference color set, the relative positions of the cursor waveform of the color set and the cursor waveform of the reference color set are locked in a wave gate, namely, the registration process of the overprinting cursor is finished.
The electric eye optical fiber mounting port of the common ivory board is vertical to the surface of paper, and an included angle of 25-35 degrees is formed between the electric eye optical fiber mounting port of the laser light column paper and the electric eye optical fiber mounting port of the common ivory board.
The invention principle of the invention is as follows:
in order to reduce the stronger reflected light of the laser paper, the inventor creatively arranges an upper laser paper electric eye optical fiber mounting port and a lower laser paper electric eye optical fiber mounting port which are obliquely inserted on the right side of the registration electric eye support, and the registration electric eye optical fiber is obliquely inserted at an angle of 25-35 degrees, so that the registration electric eye light source is obliquely irradiated on the laser paper, and the intensity of the reflected light of the laser paper returning to the electric eye optical fiber is weakened. The overprint cursor signal that DT-3000 registration system can discern is taken as the standard, puts the cursor signal to the biggest again, and the intensity of overprint cursor signal can reach the registration system requirement, and the wave form is as shown in the oscillogram shown in figure 8, has stronger light column interference wave 1, 2, 4 and 5 in 20mm wave gate width, and the influence of light column interference wave to the overprint is great, leads to the unable normal work of registration system.
In order to weaken the interference wave of the light column, the inventor tries to weaken the interference wave of the light column in a way of adding a single-layer optical filter in front of the cursor detection electric eye. Although the interference wave of the light beam is obviously weakened after the single-layer filter is arranged, the waveform diagram is shown in figure 9, but the ideal state is not achieved. Through repeated experiments, the inventor creatively designs the optical filter into a double-layer optical filter, and combines the polarizing filter A and the polarizing filter B together, so that the optical column interference wave is weakened to be very small, the normal cursor reading is hardly interfered by the waveform diagram shown in fig. 10, but the waveform diagram of the stronger optical column interference wave shown in fig. 9 occasionally appears, and the normal operation of the registration system is influenced. In order to solve the abnormal situation, the inventor considers that the error value of the interference wave detected by the registration system exceeds the registration deviation of the gravure press during normal printing by researching and analyzing the working principle of the registration system of the gravure press, and can shield the interference wave by adjusting the parameter setting of the registration system. The inventor creatively finely adjusts two registration parameters of longitudinal fine adjustment offset and transverse fine adjustment offset in a registration standard parameter setting interface, adjusts the longitudinal fine adjustment offset to 0.3mm from 0.5mm set by a system, and simultaneously adjusts the transverse fine adjustment offset to 0.3mm from 0.5mm set by the system, other parameters are unchanged, and the detected interference wave is shielded outside the adjustment action of the registration system through the adjustment, thereby achieving unexpected technical effects. After the two parameters are adjusted, the work of the registration system is stabilized, and the normal production requirement is met.
By adopting the technical scheme, the inventor invents a registration device for printing the overprint cursor on the laser paper and a use method thereof on the basis of a DT-3000 registration system.
Compared with the prior art, the invention has the beneficial effects that:
1. compared with the existing cigarette label printing technology, the printing color group of the base color is less, and the production cost such as the ink consumption and the power consumption can be reduced. In the production process of the existing cigarette label printing, a base color is additionally printed when the laser paper of the light column is used for printing, the base color is printed at the position of the overprinting cursor, and the interference of the light column of the laser paper to a normal cursor can be eliminated only by printing the overprinting cursor on the base color, so that a color group is required to be added for printing the base color at the position of the overprinting cursor on the basis of a normal color sequence when the laser paper of the light column is used for printing, one printing color group is added, and the production costs of ink, electricity charge and the like are increased. Taking an example that a company produces 10 ten thousand boxes of laser beam paper cigarette labels one year, adding one printing color set requires about 120 ten thousand yuan of RMB, and the production cost of ink, electricity charge and the like is increased by about 10 ten thousand yuan each year.
(2) The laser paper of the light beam does not need to be widened by 15mm, so that the waste of cigarette label paper is avoided. In the prior art, when no redundant color groups exist, a paper manufacturer can only be required to widen the paper by 15mm, and a 15mm wide silver edge without a light beam laser is added to one side of the laser paper for overprinting cursor printing, so that the paper cost is increased. Taking 725mm wide width of the laser card paper roll paper of the light beam of the small box of the hard-packed cigarette as an example, if the width is widened by 15mm, the paper cost is increased by 2.07 percent. The Hongta mountain produced by the company is normally printed by 8 colors, and the problem of increasing the cost of paper is faced if the Hongta mountain is printed on a Sonde 8-color gravure printing machine. Taking a company to produce 10 ten thousand cases of cigarettes packed in a small box by using a light beam laser card paper, one side of the 725mm wide light beam laser card paper is added with a 15mm wide silver edge without light beam laser, and the paper cost is increased by 40 ten thousand yuan per year.
Drawings
Fig. 1 is a schematic structural view of a registered electric eye device according to the present invention.
Fig. 2 is a schematic diagram of a back structure of the registered electric eye support according to the present invention.
Fig. 3 is a schematic structural diagram of a filter holder according to the present invention.
Fig. 4 is a schematic structural view of the optical filter holder mounted on the registered electric eye support according to the present invention.
Fig. 5 is a schematic view showing a state of use of the present invention in printing an overprint cursor on a laser beam paper.
Fig. 6 is a schematic view showing a state of use of the present invention in printing an overprint cursor on a white cardboard.
FIG. 7 is a standard waveform diagram of a single cursor displayed by the automatic chromatography control system when the chromatography cursor is printed on the white cardboard according to the present invention.
FIG. 8 is a waveform of a single cursor having an interference wave when no filter is added to the registration electro-optic support for printing the overprinted cursor on the laser beam paper in accordance with the present invention.
FIG. 9 is a waveform diagram of a single cursor showing reduced interference waves when a polarizing filter A is added to the registration electric-eye support when the overprinted cursor is printed on the laser beam paper according to the present invention.
Fig. 10 is a waveform diagram of a single cursor in which interference waves are minimized when the polarization filter a and the polarization filter B are additionally installed on the registration electric-eye support when the overprinted cursor is printed on the laser beam paper according to the present invention.
Fig. 11 is a schematic diagram of cursor printing and cursor signal reading during the adjustment of registered cursor printing according to the present invention.
In the figure: 1-a registered electric eye support, 2-a filter frame, 3-an electric eye adjusting frame, 4-a registered electric eye optical fiber, 5-a registered electric eye signal gain control box, 6-a registered electric eye signal gain switch, 7-paper, 8-an electric eye adjusting frame mounting rod, 9-a locking screw, 10-a laser light column paper electric eye optical fiber mounting port, 11-a mounting clamping groove, 12-an electric eye transverse locking screw, 13-an electric eye front and back fine tuning screw, 14-a common white cardboard electric eye optical fiber mounting port, 15-an optical filter mounting port, 16-a registered electric eye cursor signal collecting port, 17-a double-layer optical filter, 18-a polarizing optical filter A, 19-a polarizing optical filter B, 20-a paper passing roller, 21-a carving cursor, 22-a printing roller, 23-impression blanket, 24-printing cursor
In fig. 8 to 10, 3 in the waveform diagram is a single printing cursor waveform, 1, 2, and 4 in the waveform diagram are alternating interference waves formed by light reflection of the laser light beam paper, and 5 in the waveform diagram is an interference wave formed by light reflection of the laser light beam paper to the overprint cursor wave.
Detailed Description
The present invention will be further illustrated by the following examples, but is not limited thereto.
Example 1
The registration device for printing the overprint cursor on the laser light column paper comprises an automatic chromatography control system of a gravure press, a registration electric eye support 1, a filter holder 2 and an electric eye adjusting holder 3.
The automatic color register control system comprises a servo motor, a register electric eye optical fiber 4, a register electric eye signal gain control box 5, a register electric eye signal gain selector switch 6 and a parameter setting register touch screen.
The left side of the register electric eye support 1 is provided with an upper common white cardboard electric eye optical fiber installing port 14 and a lower common white cardboard electric eye optical fiber installing port 14 which are in a straight inserting type, the right side of the register electric eye support 1 is provided with an upper laser light column paper electric eye optical fiber installing port 10 and a lower laser light column paper electric eye optical fiber installing port 10 which are in an inclined inserting type, a 30-degree included angle is formed between the laser light column paper electric eye optical fiber installing port 10 and the common white cardboard electric eye optical fiber installing port 14, and the back of the register electric eye support 1 is provided with an upper register electric eye cursor signal collecting port 16 and a locking screw 9 used for installing the optical filter frame 2.
The filter frame 2 is composed of a filter mounting opening 15 and a double-layer filter 17, and the double-layer filter 17 is composed of a polarizing filter A and a polarizing filter B.
The electric eye adjusting bracket 3 comprises an installation clamping groove 11, a horizontal locking screw 12 of an electric eye and a fine adjustment screw 13 around the electric eye, the electric eye adjusting bracket 3 is installed on an electric eye adjusting bracket installation rod 8 through the installation clamping groove 11 and the horizontal locking screw 12 of the electric eye, two ends of the electric eye adjusting bracket installation rod 8 are fixed on a printing color group wallboard of the gravure press, and the registered electric eye support 1 is fixed on the upper portion of the electric eye adjusting bracket 3.
Example 2
A use method of a registration device for printing a overprint cursor on laser light column paper is characterized in that: the using method comprises the following steps:
(1) installing a registered electric eye optical fiber: inserting the registration electric eye optical fiber 4 into the laser light column paper electric eye optical fiber installation port 10, exposing the electric eye head from the registration electric eye cursor signal acquisition port 16, emitting an electric eye light source from the electric eye head to irradiate the laser light column paper, and reflecting a reflection signal on the paper from the registration electric eye cursor signal acquisition port 16 back to the electric eye head;
(2) installing a double-layer optical filter: installing the filter holder 2 provided with the double-layer filter 17 on the registering electric eye holder 1, and fixing the filter holder 2 by using a locking screw 9 to ensure that the distance between the double-layer filter 17 and the laser beam column paper is 5 mm;
(3) selecting laser light beam paper registration parameters: dialing the registration electric eye signal gain change-over switch 6 at the laser beam paper gear, calling out a registration parameter setting interface on a parameter setting registration touch screen, selecting standard registration parameters when printing the laser beam paper, adjusting the longitudinal fine tuning offset from 0.5mm set by a system to 0.3mm, simultaneously adjusting the transverse fine tuning offset from 0.5mm set by the system to 0.3mm, keeping other parameters unchanged, and shielding the detected interference wave outside the adjustment action of the registration system through parameter adjustment;
(4) printing and adjusting a registration cursor: the paper feeding path and the operation mode of the laser beam paper are not different from those of ordinary paper, after the equipment is started, the laser beam paper roll is discharged from an uncoiler and then is fed by a driving roller, the fed paper is transmitted between a printing plate roller 22 and an imprinting rubber roller 23 through a paper passing roller 20, the imprinting rubber roller 23 compacts the paper on the printing plate roller 22, engraved patterns and engraved cursors 21 on the printing plate roller 22 are transferred onto the paper through printing ink, a register electric eye is transversely adjusted to a cursor printing position, when a printed cursor 24 on the paper runs to a position below a register electric eye cursor signal acquisition port 16, reflected light signals are obviously changed, then a photoelectric conversion control box converts the reflected light signals into electric signals and transmits the electric signals to an automatic register control system, and a register touch screen is set through parameters to display a print cursor waveform diagram;
(5) adjusting a printing waveform diagram: switching the interface of the parameter setting registration touch screen to a printing oscillogram interface, adjusting the waveform of the natural color group cursor to be consistent when repeated appearance is required according to the adjustment of the waveform effect, and carrying out fine adjustment through a fine adjustment screw 13 in front and back of an electric eye until a stable oscillogram with the best printing overprinting effect is achieved;
(6) automatic control of printing overprinting: after the color set is registered with the pattern of the reference color set, the relative positions of the cursor waveform of the color set and the cursor waveform of the reference color set are locked in a wave gate, namely, the registration process of the overprinting cursor is finished.
Example 3
When the device is used for printing the overprint cursor on the white cardboard, the using method is as shown in figure 6 of the attached drawing, the optical filter frame 2 is firstly taken down, then the registration electric eye optical fiber 4 is inserted into the electric eye optical fiber installing port 14 of the common white cardboard, the electric eye head is exposed from the registration electric eye cursor signal collecting port 16, then the registration electric eye signal gain switch 6 is shifted to the gear of the common white cardboard, and finally the corresponding registration parameters are selected on the interface of the parameter setting registration touch screen.
Claims (3)
1. The utility model provides a register device of overprinting cursor seal on radium-shine light column paper, includes the automatic chromatography control system of gravure press, automatic chromatography control system include servo motor, register electric eye optic fibre (4), register electric eye signal gain control box (5), register electric eye signal gain change over switch (6) and parameter setting register touch-sensitive screen, its characterized in that: the electro-optical eye alignment device is characterized by further comprising an alignment electro-optical eye support (1), an optical filter frame (2) and an electro-optical eye adjusting frame (3), wherein an upper common white cardboard electro-optical eye optical fiber installing port (14) and a lower common white cardboard electro-optical fiber installing port (14) which are directly inserted are arranged on the left side of the alignment electro-optical eye support (1), an upper laser optical column paper electro-optical fiber installing port (10) and a lower laser optical column paper electro-optical fiber installing port (10) which are obliquely inserted are arranged on the right side of the alignment electro-optical eye support (1), an upper alignment electro-optical eye cursor signal collecting port (16) and a locking screw (9) used for installing the optical filter frame (2) are arranged on the back side of the alignment electro-optical eye support (1), the optical filter frame (2) consists of an optical filter installing port (15) and a double-layer optical filter (17), the double-layer optical filter (17) consists of a polarizing optical filter A (18) and a polarizing filter B (19), and the electro-optical eye adjusting frame (3) consists of an installing clamping groove (11), an electro-optical transverse locking screw (12) and an electro-optical eye fine adjusting screw (13) which are finely adjusted front and back, the electric eye adjusting frame (3) is installed on an electric eye adjusting frame installation rod (8) through an installation clamping groove (11) and an electric eye transverse locking screw (12), two ends of the electric eye adjusting frame installation rod (8) are fixed on a printing color set wallboard of the gravure press, and the registered electric eye support (1) is fixed on the upper portion of the electric eye adjusting frame (3).
2. The registration apparatus of claim 1, wherein the registration apparatus comprises: the common ivory board electric eye optical fiber mounting port (14) is perpendicular to the surface of the paper (7), and an included angle of 25-35 degrees is formed between the laser light column paper electric eye optical fiber mounting port (10) and the common ivory board electric eye optical fiber mounting port (14).
3. The method of using the registration apparatus for printing the overprint marks on the laser beam paper as claimed in claim 1 or 2, wherein: the using method comprises the following steps:
(1) installing a registered electric eye optical fiber: inserting the registration electric eye optical fiber (4) into the laser light column paper electric eye optical fiber installation port (10), exposing the electric eye head from the registration electric eye cursor signal acquisition port (16), emitting an electric eye light source from the electric eye head to irradiate the laser light column paper, and reflecting a reflection signal on the paper from the registration electric eye cursor signal acquisition port (16) back to the electric eye head;
(2) installing a double-layer optical filter: installing a filter frame (2) provided with a double-layer filter (17) on the registering electric eye support (1), and fixing the filter frame (2) by using a locking screw (9) to ensure that the distance between the double-layer filter (17) and the laser beam column paper is 4-6 mm;
(3) selecting laser light beam paper registration parameters: dialing a registration electric eye signal gain change-over switch (6) at a laser beam paper gear, calling out a registration parameter setting interface on a parameter setting registration touch screen, selecting standard registration parameters when printing the laser beam paper, adjusting longitudinal fine tuning offset from 0.5mm set by a system to 0.3mm, adjusting transverse fine tuning offset from 0.5mm set by the system to 0.3mm, keeping other parameters unchanged, and shielding detected interference waves outside the adjustment action of the registration system through parameter adjustment;
(4) printing and adjusting a registration cursor: the paper feeding path and the operation mode of the laser beam paper are not different from those of ordinary paper, after the equipment is started, the laser beam paper roll is discharged from an uncoiler and then is fed by a driving roller, the laser beam paper roll is transmitted to a position between a printing plate roller (22) and an embossing rubber roller (23) through a paper passing roller (20), the paper is compacted on the printing plate roller (22) through the embossing rubber roller (23), an engraved pattern and an engraved cursor (21) on the printing plate roller (22) are transferred onto the paper through ink, a registration electric eye is transversely adjusted to a cursor printing position, when a printed cursor (24) on the paper runs to a position below a registration electric eye cursor signal acquisition port (16), a reflected light signal is obviously changed, at the moment, a photoelectric conversion control box converts the reflected light signal into an electric signal and transmits the electric signal to an automatic color registration control system, and a printing cursor waveform diagram is displayed through a parameter setting registration touch screen;
(5) adjusting a printing waveform diagram: switching the interface of the parameter setting registration touch screen to a printing oscillogram interface, adjusting the waveform of the natural color set cursor to be consistent when repeated appearance is required according to the adjustment of the waveform effect, and carrying out fine adjustment through a fine adjustment screw (13) in front and back of an electric eye until a stable oscillogram with the best printing overprinting effect is achieved;
(6) automatic control of printing overprinting: after the color set is registered with the pattern of the reference color set, the relative positions of the cursor waveform of the color set and the cursor waveform of the reference color set are locked in a wave gate, namely, the registration process of the overprinting cursor is finished.
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| CN215590207U (en) * | 2021-09-07 | 2022-01-21 | 大理美登印务有限公司 | Registration device for printing overprinting cursor on laser light column paper |
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2021
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