CN112356559B - Carving control method and device for adjusting positions of net holes and electric carving control system - Google Patents
Carving control method and device for adjusting positions of net holes and electric carving control system Download PDFInfo
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- CN112356559B CN112356559B CN202011323117.5A CN202011323117A CN112356559B CN 112356559 B CN112356559 B CN 112356559B CN 202011323117 A CN202011323117 A CN 202011323117A CN 112356559 B CN112356559 B CN 112356559B
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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
- B41C1/04—Engraving; Heads therefor using heads controlled by an electric information signal
- B41C1/045—Mechanical engraving heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N3/00—Preparing for use and conserving printing surfaces
- B41N3/003—Preparing for use and conserving printing surfaces of intaglio formes, e.g. application of a wear-resistant coating, such as chrome, on the already-engraved plate or cylinder; Preparing for reuse, e.g. removing of the Ballard shell; Correction of the engraving
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
Abstract
The invention relates to an engraving control method and device for adjusting positions of network holes and an electric engraving control system, and relates to the field of electric engraving control. By the carving control method, even under the condition that the rotating speed of the plate roller fluctuates, the carving control signal is modulated in real time to adjust the time when the carving head carves the to-be-carved net hole, the carving head carves the net hole at an expected position to form a series of net holes with the same interval, and the accuracy of the position of the carved net hole is improved.
Description
Technical Field
The present application relates to the field of electrical engraving control, and in particular, to an engraving control method and apparatus for adjusting positions of cells, and an electrical engraving control system.
Background
With the development of modern society, people have higher and higher requirements on printing quality, and a plate roller is a key factor influencing the quality of the plate roller. The roll format includes relief, flat and intaglio, wherein intaglio dominates the market with its excellent properties. The gravure platemaking method comprises the following steps: etching, laser engraving, electric engraving and the like. The electroengraving platemaking is widely applied due to the advantages of strong repeatability, variable mesh point area and depth, low cost and the like.
Generally, the engraving head engraves the mesh on the surface of the plate roller and the plate roller rotates at a constant speed under the driving of an engraving control signal, so that a series of meshes with the same interval are formed. However, due to the influence of external factors, the rotating speed of the plate roller in the rotating process can generate large fluctuation, so that the positions of subsequently engraved cells are deviated.
Disclosure of Invention
Therefore, it is necessary to provide an engraving control method, an apparatus and an electrical engraving control system capable of adjusting the positions of the cells to ensure the accurate positions of the engraved cells.
An engraving control method for adjusting the positions of the cells is applied to an electric engraving control system, and comprises the following steps:
acquiring an engraving control signal according to the pattern to be processed of the electric engraving control system;
controlling the engraving head to engrave a mesh on the moving plate roller according to the engraving control signal;
acquiring the track length of the engraving head passing through the plate roller from the position of the engraving head mapped on the plate roller at the current moment to the next to-be-engraved hole position;
acquiring the rotating speed of a printing roller at the current moment and the carving control signal to be output, wherein the carving control signal to be output comprises a plurality of signal points;
and modulating the carving control signal to be output according to the track length, the plate roller rotating speed and the signal point so as to change the time when the carving head carves the next mesh to be carved.
In an embodiment, the obtaining a length of a track of the engraving head passing through the plate roller from a position of the engraving head mapped on the plate roller at the current time to a next to-be-engraved cell position includes:
acquiring the position of the engraving head mapped on the printing roller at the current moment;
acquiring the next mesh position to be engraved according to the pattern to be processed;
acquiring the motion direction of the engraving head relative to the plate roller at the current moment;
and acquiring the track length according to the position of the engraving head mapped on the plate roller, the position of the next mesh to be engraved and the motion direction.
In one embodiment, the engraving control signal to be output comprises a sine wave signal comprising a number of said signal points, wherein,
the time for modulating the carving control signal to be output according to the track length, the plate roller rotating speed and the signal point so as to change the moment for carving the next mesh to be carved by the carving head comprises the following steps:
and modulating the sine wave signal according to the track length, the plate roller rotating speed and the signal point to change the time of carving the next to-be-carved mesh corresponding to the wave trough position of the sine wave signal.
In one embodiment, modulating the sine wave signal according to the track length, the plate roller rotating speed and the signal point comprises:
calculating the engraving time according to the track length and the plate roller rotating speed;
calculating the time interval between each adjacent signal point in the signal points according to the carving time and the number of the signal points;
and modulating the corresponding time of each signal point according to the time interval so as to change the time of carving the next to-be-carved mesh corresponding to the wave trough position of the sine wave signal.
In one embodiment, said calculating a time interval between adjacent ones of said signal points based on said engraving time and said number of signal points comprises:
and calculating the time interval between each adjacent signal point in the signal points according to the carving time and the number of the signal points and a time sharing principle.
In one embodiment, after acquiring the rotating speed of the printing roll at the current time, the method further includes:
and carrying out filtering processing on the rotating speed of the plate roller by using a low-pass filter.
An engraving control device for adjusting the positions of mesh holes, which is applied to an electric engraving control system, and comprises:
the signal acquisition module is used for acquiring carving control signals according to the pattern to be processed of the electric carving control system;
the control module is used for controlling the engraving head to engrave a mesh on the moving printing roller according to the engraving control signal;
the track acquisition module is used for acquiring the track length of the engraving head passing through the printing roller from the position of the engraving head mapped on the printing roller at the current moment to the next to-be-engraved mesh position;
the rotating speed acquisition module is used for acquiring the rotating speed of the printing roller at the current moment;
the signal acquisition module is further used for acquiring the carving control signal to be output, and the carving control signal to be output comprises a plurality of signal points;
and the signal modulation module is used for modulating the carving control signal to be output according to the track length, the plate roller rotating speed and the signal points so as to change the time when the carving head carves the next mesh to be carved.
An electroengraving control system for adjusting the position of a cell, the system comprising:
an engraving head;
a printing roller;
a control device connected to the engraving head and the plate roller, respectively, the control device being configured to:
acquiring carving control signals according to the pattern to be processed of the electric carving control system for adjusting the positions of the mesh points;
controlling the engraving head to engrave a mesh on the moving printing roller according to the engraving control signal;
acquiring the track length of the engraving head passing through the plate roller from the position of the engraving head mapped on the plate roller at the current moment to the next to-be-engraved hole position;
acquiring the rotating speed of the printing roller at the current moment and the carving control signal to be output, wherein the carving control signal to be output comprises a plurality of signal points;
and modulating the carving control signal to be output according to the track length, the plate roller rotating speed and the signal point so as to change the time when the carving head carves the next mesh to be carved.
An electrical engraving control system for adjusting the position of a cell comprises a memory and a processor, wherein the memory stores a computer program, and the computer program is executed by the processor to enable the processor to execute the steps of the engraving control method for adjusting the position of the cell.
A computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method of controlling engraving of adjusting cell positions as defined in any one of the preceding claims.
According to the engraving control method for adjusting the positions of the holes, the track length of the engraving head moving from the position of the current engraving head, which is mapped on the plate roller, to the position of the next hole to be engraved through the plate roller, the rotating speed of the plate roller at the current time and the engraving control signal to be output are obtained, and then the engraving control signal to be output is modulated according to the track length, the rotating speed of the plate roller and the signal point so as to change the time when the engraving head engraves the next hole to be engraved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1(a) is a schematic application environment diagram of an engraving control method for adjusting cell positions according to an embodiment of the present invention;
fig. 1(b) is a schematic application environment diagram of an engraving control method for adjusting cell positions according to another embodiment of the present invention;
FIG. 2 is a flowchart illustrating an exemplary embodiment of a method for controlling engraving to adjust a position of a cell;
FIG. 3(a) is a schematic diagram of a roller rotation speed curve under normal working conditions;
FIG. 3(b) is a schematic diagram of the roller rotation speed curve when mechanical resonance occurs;
FIG. 4 is a schematic flow chart of the step of obtaining the length of the track of the engraving head passing through the plate roller from the position of the engraving head at the current moment, which is mapped on the plate roller, to the next to-be-engraved cell position;
FIG. 5 is a schematic diagram showing a waveform of a sine wave signal in the engraving control signal;
FIG. 6 is a schematic flow chart of the step of modulating the sine wave signal according to the track length, the plate roller rotating speed and the signal point;
FIG. 7 is a block diagram of an exemplary embodiment of an engraving control device for adjusting the position of a cell;
fig. 8 is a block diagram of an electrical engraving control system for adjusting the position of a cell according to an embodiment of the present invention.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It is to be understood that "connection" in the following embodiments is to be understood as "electrical connection", "communication connection", and the like if the connected circuits, modules, units, and the like have communication of electrical signals or data with each other.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.
Fig. 1(a) and fig. 1(b) are schematic diagrams of two application environments of a driving method in an embodiment of the present application. When the electric carving machine works normally, the main shaft of the electric carving machine drives the printing roller to rotate at a high speed under the driving of the alternating-current servo motor, the carving head is pressed on the surface of the printing roller driven by the main shaft under the driving of the head leaning motor, and the trolley drives the carving head to move continuously at a low speed or move along the axial direction of the printing roller in a stepping mode under the driving of the screw rod of the servo motor. The industrial personal computer in the electric carving control system converts the patterns to be processed by the electric carving machine into digital image information, the driving module converts digital signals into analog signals through the digital-analog converter, and the carving head is controlled to carve carving points with different sizes and depths on the surface of the plate roller copper layer at fixed frequency (4K-12 KHz), so that a mesh point is formed.
Fig. 2 is a flowchart illustrating an engraving control method for adjusting cell positions according to an embodiment of the present invention, which includes steps S210 to S250.
And step S210, acquiring an engraving control signal according to the pattern to be processed of the electric engraving control system.
The image engraved on the plate roller can comprise a plurality of groups of patterns to be processed, and the plurality of groups of patterns to be processed can be engraved for multiple times. The pattern to be processed engraved in one engraving process may include a plurality of cells that surround the plate roller and are distributed at equal intervals, and the plurality of cells may be distributed spirally or circumferentially around the plate roller, for example.
And S220, controlling the engraving head to engrave the mesh on the moving plate roller according to the engraving control signal.
Specifically, the plate roller rotates around the central shaft of the plate roller, and the engraving head reciprocates vertically to the cylindrical surface of the plate roller while moving along the axial direction of the plate roller under the driving of the engraving control signal to form a mesh on the plate roller while rotating the plate roller.
Step S230, obtaining the track length of the engraving head passing through the plate roller from the position of the engraving head at the current moment, which is mapped on the plate roller, to the next to-be-engraved hole position.
The position of the engraving head mapped on the plate roller at the current moment can be defined as a first position, and the first position is not the position of the engraving head for engraving cells on the plate roller. It can be understood that, except for the moment when the engraving head engraves on the plate roller, the engraving heads do not contact the plate roller at other moments, so that the engraving head does not contact the plate roller at the current moment, and the position of the engraving head mapped on the plate roller can be the position of the engraving head projected on the surface of the plate roller.
The track length is the track length of the engraving head passing through the plate roller during the engraving head moves from the first position at the current moment to the next to-be-engraved mesh position according to a certain moving direction.
And step S240, acquiring the rotating speed of the plate roller at the current moment and the carving control signal to be output.
Wherein, the carving control signal to be output comprises a plurality of signal points.
The carving control signal to be output is a carving control signal to be output in a time period from the current moment to the moment of carving the next cell. It can be understood that after one cell is engraved, the engraving of the next cell needs to output a cycle of engraving control signals. The engraving control signal comprises a plurality of signal points, wherein in the engraving control signal in one period, the moment corresponding to one signal point is the moment when the engraving head engraves the next to-be-engraved cell.
And S250, modulating the carving control signal to be output according to the track length, the plate roller rotating speed and the signal point so as to change the time when the carving head carves the next mesh to be carved.
Specifically, the engraving time of the engraving head moving from the position of the engraving head mapped on the printing roller to the position of the next to-be-engraved mesh on the printing roller can be calculated according to the track length and the rotating speed of the printing roller, a signal point corresponding to the moment when the engraving head engraves the next to-be-engraved mesh can be modulated according to the engraving time, and as one signal point in the engraving control signals corresponds to the moment when the engraving head engraves the next to-be-engraved mesh, the engraving control signals to be output are modulated to change the moment corresponding to the signal point, so that the time interval between the current moment and the moment corresponding to the signal point is equal to the engraving time, and the engraving head is guaranteed to engrave the next to-be-engraved mesh at the specified position.
As shown in fig. 3(a), the plate roller rotation speed is relatively stable under normal conditions, and the fluctuation is small. Due to the influence of environmental factors, the plate roller generates mechanical resonance in the rotation process, which results in large fluctuation of the rotation speed of the plate roller, as shown in fig. 3 (b). Therefore, the moment when the engraving head engraves the next to-be-engraved mesh can be changed by detecting the rotating speed of the plate roller and modulating the to-be-output engraving control signal by combining the track length and the signal point, and the accuracy of the position of the engraved mesh is improved. Specifically, the detection time of the plate roller rotation speed can be set manually, in one embodiment, the detection time of the plate roller rotation speed can be a time corresponding to other signal points except the signal point corresponding to the engraving time, that is, the plate roller rotation speed is detected at a time corresponding to each signal point except the signal point corresponding to the engraving time according to the engraving control signal, so as to improve the accuracy of the pit engraving position.
According to the embodiment of the invention, the track length of the plate roller, the rotating speed of the plate roller at the current moment and the carving control signal to be output when the carving head moves from the position of the plate roller to the position of the next to-be-carved hole from the current moment of the carving head mapping, and then the carving control signal to be output is modulated according to the track length, the rotating speed of the plate roller and the signal point so as to change the moment when the carving head carves the next to-be-carved hole.
In one embodiment, as shown in fig. 4, the step of obtaining the length of the track of the plate roller where the engraving head moves from the position of the plate roller mapped by the engraving head at the current moment to the position of the next to-be-engraved cell includes steps S410 to S440.
And step S410, acquiring the position of the engraving head mapped on the plate roller at the current moment.
It can be understood that the engraving head is only in contact with the plate roller when the mesh carving is performed, and therefore, the engraving head is not in contact with the plate roller at any other time except the time of performing the mesh carving, and therefore, the engraving head is not in contact with the plate roller at the current time, and the position of the engraving head mapped on the plate roller can be the position of the engraving head projected on the surface of the plate roller.
Step S420, obtaining a next to-be-engraved cell position according to the to-be-processed pattern.
Specifically, the positions of all the mesh points to be engraved on the plate roller can be determined according to the pattern to be processed, and after the next mesh point to be engraved is engraved, the engraving head is ready to be at the position of the next engraved mesh point.
And step S430, acquiring the motion direction of the engraving head relative to the plate roller at the current moment.
Wherein the moving direction is the relative moving direction when the engraving head moves around the surface of the plate roller by taking the plate roller as a reference object.
In particular, a displacement sensor based on laser or ultrasound can be used to measure the direction of movement.
And step S440, acquiring the track length according to the position of the engraving head mapped on the plate roller, the position of the next mesh to be engraved and the movement direction.
It can be understood that after the position of the engraving head mapped on the plate roller and the next mesh point to be engraved are determined, the path length, i.e., the track length, of the plate roller, through which the engraving head moves from the position of the engraving head mapped on the plate roller to the position of the next mesh point to be engraved at the current moment in the moving direction can be determined.
According to the embodiment of the invention, the track length is obtained by acquiring the position of the engraving head at the current moment, which is mapped on the plate roller, the position of the next to-be-engraved mesh and the movement direction of the engraving head at the current moment relative to the plate roller, and the scheme is simple and accurate track length data can be obtained.
In one embodiment, the engraving control signal to be output may comprise a sine wave signal comprising a number of signal points; according to orbit length, version roller rotational speed and signal point modulation treat the sculpture control signal of output in order to change the carving head and carve the next moment of treating the sculpture hole, include: and modulating the sine wave signal according to the track length, the rotating speed of the plate roller and the signal point to change the time of carving the next to-be-carved mesh corresponding to the wave trough position of the sine wave signal.
It will be appreciated that the sine wave signal may be a component of the engraving control signal that drives the engraving head and the plate roller into relative motion. The sine wave signal in the engraving control signal to be output may include a plurality of signal points, as shown in fig. 5, wherein in the sine wave signal, a time Tm corresponding to the signal point at the valley position is a time when the engraving head contacts the plate roller, that is, a time when the engraving head engraves a next mesh to be engraved, and thus, by adjusting the time Tm at the valley position, a time when the engraving head engraves the next mesh to be engraved can be changed, so that the engraving head engraves the next mesh to be engraved at a specified position.
The carving control signal to be output in the embodiment of the invention can comprise a sine wave signal, wherein the sine wave signal comprises a plurality of signal points; and modulating the sine wave signal according to the track length, the rotating speed of the printing roller and the signal point to change the time of carving the next to-be-carved mesh corresponding to the wave trough position of the sine wave signal, so that the carving head carves the next to-be-carved mesh at the specified position.
In one embodiment, as shown in fig. 6, the step of modulating the sine wave signal according to the track length, the plate roller rotation speed and the signal point may include steps S610 to S630.
And step S610, calculating engraving time according to the track length and the plate roller rotating speed.
Specifically, the length of the track and the rotating speed of the plate roller can be divided to obtain the engraving time.
In step S620, the time interval between each adjacent signal point in the signal points is calculated according to the engraving time and the number of the signal points.
The time intervals corresponding to the signal points in the unmodulated sine wave signal are the same, and when the time corresponding to the wave trough position of the sine wave signal is changed, the time corresponding to each signal point can be changed according to the time intervals between every two adjacent signal points so as to adjust the time corresponding to the wave trough position of the sine wave for engraving the next to-be-engraved cell.
And step S630, modulating the corresponding time of each signal point according to the time interval so as to change the time of carving the next to-be-carved mesh corresponding to the wave trough position of the sine wave signal.
In one embodiment, the time interval between each adjacent signal point in the signal points can be calculated according to the engraving time and the number of the signal points and the time sharing principle, so that the corresponding time of all the signal points of the sine wave signal can be adjusted according to the time interval, and thus, the adjusted time intervals between the signal points can be equal.
According to the embodiment of the invention, the engraving time is calculated according to the track length and the rotating speed of the plate roller, then the time interval between each adjacent signal point in the signal points is calculated by combining the number of the signal points, and the corresponding time of each signal point is further modulated according to the time interval so as to change the time for engraving the next to-be-engraved cell corresponding to the wave trough position of the sine wave signal.
In one embodiment, after the step of obtaining the rotating speed of the plate roller at the current time, the method further includes: and carrying out filtering processing on the rotating speed by using a low-pass filter.
It can be understood that the rotating speed of the plate roller can be acquired by the sensor, and due to the influence of environmental factors, the acquired rotating speed of the plate roller has noise interference and inaccurate rotating speed value, so that the acquired discrete rotating speed value can be continuously processed firstly, and then the rotating speed is filtered by the low-pass filter.
According to the embodiment of the invention, the low-pass filter is used for filtering the rotating speed of the printing roller, so that more accurate rotating speed of the printing roller can be obtained, and the adjustment of the moment when the engraving head engraves the next cell is more accurate.
Fig. 7 is a block diagram of an engraving control device for adjusting a cell position according to an embodiment of the present invention, where the engraving control device is applied to an electrical engraving control system, and the engraving control device includes: a signal obtaining module 701, configured to obtain an engraving control signal according to a pattern to be processed of the electrical engraving control system; the control module 702 is used for controlling the engraving head to engrave the mesh holes on the moving printing roller according to the engraving control signal; the track obtaining module 703 is configured to obtain a track length of the engraving head passing through the printing roller from the position of the printing roller, which is mapped by the engraving head at the current time, to the next to-be-engraved cell position; a rotating speed obtaining module 704, configured to obtain a rotating speed of the printing roller at the current time; the signal obtaining module 701 is further configured to obtain an engraving control signal to be output, where the engraving control signal to be output includes a plurality of signal points; and the signal modulation module 705 is configured to modulate the engraving control signal to be output according to the track length, the roller rotation speed, and the signal point, so as to change a time at which the engraving head engraves a next mesh to be engraved.
The signal obtaining module 701 is connected to the control module 702 and the signal modulating module 705, and the signal modulating module 705 is connected to the rotation speed obtaining module 704, the trajectory obtaining module 703 and the control module 702, respectively, and is configured to transmit the modulated engraving control signal to the control module 702, so as to drive the control module 802 to engrave a next cell.
The engraving control device for adjusting the positions of the cells obtains the track length of the engraving head moving from the position of the engraving head at the current moment to the position of the next cell to be engraved through the plate roller, the rotating speed of the plate roller at the current moment and the engraving control signal to be output, and then modulates the engraving control signal to be output according to the track length, the rotating speed of the plate roller and the signal point to change the moment of engraving the next cell to be engraved by the engraving head.
Fig. 8 is a block diagram of an electrical engraving control system for adjusting positions of cells according to an embodiment of the present invention, where the electrical engraving control system includes: an engraving head 801; a plate roller 802; a control device 803 that connects the engraving head 801 and the plate roller 802, respectively, the control device 803 being configured to: acquiring an engraving control signal according to a pattern to be processed of an electric engraving control system for adjusting the positions of the mesh holes; controlling the engraving head to engrave the mesh on the moving printing roller according to the engraving control signal; acquiring the track length of the engraving head passing through the printing roller from the position of the engraving head mapped on the printing roller at the current moment to the next to-be-engraved mesh point position; acquiring the rotating speed of the printing roller at the current moment and an engraving control signal to be output, wherein the engraving control signal to be output comprises a plurality of signal points; and modulating the carving control signal to be output according to the track length, the roller rotating speed and the signal point so as to change the moment when the carving head carves the next mesh to be carved.
The electric carving control system for adjusting the positions of the holes obtains the track length of the carving head which moves from the position of the carving head at the current moment to the position of the next hole to be carved and passes through the plate roller, the rotating speed of the plate roller at the current moment and the carving control signal to be output, and then modulates the carving control signal to be output according to the track length, the rotating speed of the plate roller and the signal point to change the time of carving the next hole to be carved by the carving head.
In the description herein, references to "some embodiments," "other embodiments," "desired embodiments," or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An engraving control method for adjusting the positions of the cells is applied to an electric engraving control system, and the method comprises the following steps:
acquiring carving control signals according to the pattern to be processed of the electric carving control system;
controlling the engraving head to engrave a mesh on the moving printing roller according to the engraving control signal;
acquiring the track length of the engraving head passing through the plate roller from the position of the engraving head mapped on the plate roller at the current moment to the next to-be-engraved hole position;
acquiring the rotating speed of the printing roller at the current moment and the carving control signal to be output, wherein the carving control signal to be output comprises a plurality of signal points;
and modulating the carving control signal to be output according to the track length, the plate roller rotating speed and the signal point so as to change the time when the carving head carves the next mesh to be carved.
2. The method according to claim 1, wherein the obtaining of the length of the track of the engraving head passing through the plate roller from the position of the engraving head mapped on the plate roller at the current moment to the position of the next to-be-engraved cell comprises:
acquiring the position of the engraving head mapped on the printing roller at the current moment;
acquiring the next mesh position to be engraved according to the pattern to be processed;
acquiring the motion direction of the engraving head relative to the plate roller at the current moment;
and acquiring the track length according to the position of the engraving head mapped on the plate roller, the position of the next mesh to be engraved and the motion direction.
3. The method according to claim 1, wherein the engraving control signal to be output comprises a sine wave signal comprising a number of said signal points, wherein,
the time for modulating the carving control signal to be output according to the track length, the plate roller rotating speed and the signal point so as to change the moment for carving the next mesh to be carved by the carving head comprises the following steps:
and modulating the sine wave signal according to the track length, the plate roller rotating speed and the signal point to change the time of carving the next to-be-carved mesh corresponding to the wave trough position of the sine wave signal.
4. The method of claim 3, wherein modulating the sine wave signal as a function of the track length, the plate roll rotation speed, and the signal point comprises:
calculating the engraving time according to the track length and the plate roller rotating speed;
calculating the time interval between each adjacent signal point in the signal points according to the carving time and the number of the signal points;
and modulating the corresponding time of each signal point according to the time interval so as to change the time of carving the next to-be-carved mesh corresponding to the wave trough position of the sine wave signal.
5. The method of claim 4, wherein said calculating a time interval between each adjacent one of said signal points based on said engraving time and said number of signal points comprises:
and calculating the time interval between each adjacent signal point in the signal points according to the carving time and the number of the signal points and a time sharing principle.
6. The method according to claim 1, characterized in that after acquiring the plate roller rotation speed at the current time, the method further comprises:
and carrying out filtering processing on the rotating speed of the plate roller by using a low-pass filter.
7. An engraving control device for adjusting the positions of mesh holes, which is applied to an electric engraving control system, and comprises:
the signal acquisition module is used for acquiring carving control signals according to the pattern to be processed of the electric carving control system;
the control module is used for controlling the engraving head to engrave a mesh on the moving printing roller according to the engraving control signal;
the track acquisition module is used for acquiring the track length of the engraving head passing through the printing roller from the position of the engraving head mapped on the printing roller at the current moment to the next to-be-engraved mesh position;
the rotating speed acquisition module is used for acquiring the rotating speed of the printing roller at the current moment;
the signal acquisition module is further used for acquiring the carving control signal to be output, and the carving control signal to be output comprises a plurality of signal points;
and the signal modulation module is used for modulating the carving control signal to be output according to the track length, the plate roller rotating speed and the signal points so as to change the time when the carving head carves the next mesh to be carved.
8. An electroengraving control system for adjusting the position of a cell, the system comprising:
an engraving head;
a printing roller;
a control device connected to the engraving head and the plate roller, respectively, the control device being configured to:
acquiring an engraving control signal according to the pattern to be processed of the electric engraving control system;
controlling the engraving head to engrave a mesh on the moving printing roller according to the engraving control signal;
acquiring the track length of the engraving head passing through the plate roller from the position of the engraving head mapped on the plate roller at the current moment to the next to-be-engraved hole position;
acquiring the rotating speed of the printing roller at the current moment and the carving control signal to be output, wherein the carving control signal to be output comprises a plurality of signal points;
and modulating the carving control signal to be output according to the track length, the plate roller rotating speed and the signal point so as to change the time when the carving head carves the next mesh to be carved.
9. An electrical engraving control system for adjusting the position of a cell, comprising a memory and a processor, wherein the memory stores a computer program, and the computer program, when executed by the processor, causes the processor to execute the steps of the method for adjusting the position of a cell according to any one of claims 1 to 6.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the engraving control method of adjusting cell positions according to any one of claims 1 to 6.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5663803A (en) * | 1993-02-25 | 1997-09-02 | Ohio Electronic Engravers, Inc. | Engraving method and apparatus for engraving areas using a shaping signal |
| DE19734411A1 (en) * | 1997-08-08 | 1999-02-11 | Heidelberger Druckmasch Ag | Method of positioning engraving elements |
| DE19805179B4 (en) * | 1998-02-10 | 2005-03-10 | Hell Gravure Systems Gmbh | Method for engraving printing forms |
| CN101804720A (en) * | 2010-03-16 | 2010-08-18 | 浙江博玛数码电子有限公司 | Vision-based online digital electronic engraving quality monitoring method and device |
| CN107357263A (en) * | 2017-06-20 | 2017-11-17 | 深圳市国匠数控科技有限公司 | A kind of electronic engraving machine control system and method |
| CN110899990B (en) * | 2019-12-03 | 2022-03-01 | 深圳供电局有限公司 | Laser engraving method and device, computer equipment and storage medium |
| CN111605290B (en) * | 2020-05-12 | 2022-05-31 | 固高科技股份有限公司 | Electric carving control system and electric carving machine |
| CN111572168B (en) * | 2020-05-12 | 2022-05-13 | 东莞固高自动化技术有限公司 | Carving control method of carving head, carving head driving module and electric carving machine |
| CN111791574A (en) * | 2020-06-19 | 2020-10-20 | 固高科技(深圳)有限公司 | Electric carving equipment and detection method |
| CN111812090B (en) * | 2020-06-19 | 2023-04-14 | 固高科技股份有限公司 | Detection method, detection device, electronic carving control system and computer-readable storage medium |
| CN111907190B (en) * | 2020-06-19 | 2022-07-15 | 固高科技股份有限公司 | Driving method, driving apparatus, electronic engraving control system, and computer-readable storage medium |
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