CN113561657B - Printing ink printing production line upgrading method - Google Patents
Printing ink printing production line upgrading method Download PDFInfo
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- CN113561657B CN113561657B CN202110845764.0A CN202110845764A CN113561657B CN 113561657 B CN113561657 B CN 113561657B CN 202110845764 A CN202110845764 A CN 202110845764A CN 113561657 B CN113561657 B CN 113561657B
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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
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
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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
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0045—Guides for printing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0045—Guides for printing material
- B41J11/0055—Lateral guides, e.g. guides for preventing skewed conveyance of printing material
Abstract
The application relates to an ink printing production line upgrading method, which comprises the following steps: step 1: determining a deviation correcting position, namely selecting a position with a horizontal height approximately equivalent to that of the printing position near the machine table as the deviation correcting position; step 2: installing a deviation rectifying track, namely erecting the deviation rectifying track between a printing position and a deviation rectifying position, wherein a material table for placing a printing stock is arranged on the deviation rectifying track, and a deviation rectifying device for regulating the position deviation of the material table in the x direction, the y direction and the theta direction is also arranged on the deviation rectifying track; and step 3: and (5) installing a CCD visual detection device, wherein the CCD visual detection device is installed in the vertical direction of the deviation rectifying position. The method is low in overall price, and the original printing equipment after upgrading and transformation has the CCD deviation rectifying function.
Description
Technical Field
The application relates to the field of ink printing machines, in particular to an upgrading method for an ink printing production line.
Background
The ink printing production line is a production line for expressing patterns and characters on printing stocks, the core equipment in the ink printing production line is ink printing equipment, the main ink printing equipment on the market comprises a screen printer, a pad printer, a digital printer, an ink jet printer and the like, and the ink printing equipment structure comprises a machine table for placing the printing stocks and a printing device for finishing printing operation.
There are a wide variety of printing devices on the market today, often ranging from thousands of dollars to tens of thousands of dollars depending on the application and level of advancement. However, in the printing process, the position deviation of the printing stock in the x, y and θ directions inevitably occurs on the machine table, and in many kinds of printing equipment in the market, no corresponding adjusting structure is designed to reduce the deviation, so that the deviation of the patterns and characters on the printed finished product is caused.
For the situation, in the prior art, there is a printing device with a CCD vision deviation correction function, such as the technical schemes disclosed in patent publication nos. CN103252989B and CN212313025U, which has high automation degree and good positioning deviation correction effect, so that the yield obtained by printing with such a printer is high, and the printed product is not prone to pattern and character deviation. However, such printers with CCD vision correction function are often on the order of twenty to fifty thousand dollars in price.
In the process of enterprise expanded operation, production lines are often required to be upgraded and modified, and the upgrading and modification of general production lines are accompanied with the purchase of new equipment with better performance, so that old equipment with poorer performance is eliminated. However, in the prior art, since the printing equipment with the CCD vision deviation correcting function is expensive, in order to improve the product yield, an enterprise needs to remove the old equipment without the CCD vision deviation correcting function on the production line, purchase the expensive printing equipment with the CCD vision deviation correcting function, and then adapt the connection positions of the equipment in the previous and subsequent processes and the printing equipment, and the enterprise faces huge capital pressure in the upgrading and modifying process of the production line.
In view of such circumstances, the applicant has considered it necessary to design an ink printing line upgrading method.
Disclosure of Invention
The application provides an ink printing production line upgrading method, the overall price of the method is low, and original printing equipment after upgrading and transformation has a CCD deviation rectifying function.
The application provides an ink printing production line upgrading method, which comprises the following steps:
step 1: determining a deviation correcting position, namely defining the position of printing the printing stock on old ink printing equipment as a printing position, selecting a position with the horizontal height approximately equivalent to the printing position near a machine table as the deviation correcting position, wherein the deviation correcting position cannot be superposed with the running track of the printing stock on an ink printing production line;
step 2: installing a deviation correcting track, namely erecting the deviation correcting track between a printing position and a deviation correcting position, wherein a material table for placing a printing stock is arranged on the deviation correcting track, and a deviation correcting device for adjusting the position deviation of the material table in the x direction, the y direction and the theta direction is also arranged on the deviation correcting track;
and step 3: the method comprises the steps of installing a CCD visual detection device, installing the CCD visual detection device in the vertical direction of a deviation correction position, feeding back position deviation information of a printing stock in the x direction, the y direction and the theta direction to the deviation correction device after the CCD visual detection device collects the position deviation information of the printing stock, and correcting the position deviation of a material platform in the x direction, the y direction and the theta direction by the deviation correction device.
Through adopting above-mentioned technical scheme, can spend comparatively cheap production line transformation cost and increase CCD vision function of rectifying for original old production line. The specific operation process after the production line is transformed is as follows: the material platform on the deviation correcting track moves to the printing position, when the printed material on the production line moves to the printing position, the printed material falls on the material platform, after the printed material is fixed on the material platform, the material platform moves to the deviation correcting position along the deviation correcting track, then the CCD visual detection device collects position deviation information of the printed material in the x direction, the y direction and the theta direction and feeds the position deviation information back to the deviation correcting device, the deviation correcting device corrects the position deviation of the material platform in the x direction, the y direction and the theta direction, then the material platform moves back to the printing position along the deviation correcting track, and then the printing device starts printing operation. Due to the fact that the CCD vision deviation rectifying function is added, the whole yield of production line printing is improved, and the phenomenon that patterns and characters on a printed finished product deviate is not prone to occurring. In the hardware acquisition cost required by the transformation method, the maximum ratio of the hardware acquisition cost is only one CCD visual detection device and one deviation rectifying track, the whole engineering quantity of the method is small, and the manual installation cost required by the transformation method is low, so that the production line upgrading method can save more cost compared with the traditional production line upgrading method.
Preferably, the deviation correction position is consistent with the horizontal height of the printing position.
By adopting the technical scheme, the technical scheme that the deviation correcting tracks are more easily erected by operators and the deviation correcting positions and the horizontal height slightly deviate is adopted, although the effect of adding the CCD vision deviation correcting function to an old production line is not hindered, the deviation correcting tracks with different heights at two ends do not accord with the habit of industrial design, and the scheme that the deviation correcting positions and the printing positions are at the same horizontal height is the preferred scheme of the application.
Preferably, the deviation rectifying track is one of a linear track, a broken line track or an arc track.
By adopting the technical scheme, the linear track is integrally straight, and the material table moves more stably on the linear deviation rectifying track; the broken line track and the arc track can be suitable for upgrading and transforming a production line in more occasions, and especially when the space for installing the deviation rectifying track and the CCD vision detection device is narrow, the broken line track or the arc track can be selected and used.
Preferably, the deviation rectifying track is a linear track; when the moving track of the printing stock on the ink printing production line is a straight line, the connecting line of the deviation correcting position and the printing position is vertical to the moving track of the printing stock on the printing production line; when the moving track of a printing stock on the ink printing production line is an arc line, a connecting line of the deviation correcting position and the printing position is vertical to a tangent line of the arc line at the screen printing position; when the track of the printing stock running on the ink printing production line forms an included angle, namely the incoming material direction of the track of the printing stock running forms an included angle with the discharging direction, the diagonal line of the reflex angle formed by the connecting line of the deviation correction position and the printing position and the track of the printing stock running on the ink printing production line is superposed.
Through adopting above-mentioned technical scheme, above-mentioned kind of technical scheme all is the technical scheme who accords with people's industrial design custom the most, is convenient for produce the line upgrading and reforms transform.
Preferably, the CCD vision inspection device is installed right above the deviation correction.
Through adopting above-mentioned technical scheme, CCD visual detection device can catch the mark point for relaxing directly over, be a comparatively cheap technical scheme, though the CCD visual system who sets up in material platform below can be adopted here, this kind of CCD visual system need have perspective function just can catch the mark point, the cost can be more high, in addition, install CCD visual detection device top but not just to the position of rectifying the off-normal, can increase the degree of difficulty of catching the mark point equally, and then increase cost, the event is installed CCD visual detection device and is the more preferred scheme of this application directly over rectifying the off-normal.
Preferably, the deviation rectifying track is provided with a mechanical positioning structure at both the deviation rectifying position and the printing position.
Through adopting above-mentioned technical scheme, mechanical location structure can further ensure that the material platform is in the position of rectifying a deviation and printing position stops.
Preferably, the ink printing equipment is one of a screen printer, a pad printer, a digital printer or an ink jet printer.
Through adopting above-mentioned technical scheme, the printing device of silk screen printing machine is the silk screen printing otter board, and the printing device of bat printing machine is the pad printing head, and the printing device of digital printer is the printer head, and the printing device of ink jet printer is the nozzle, and the line is produced in the printing ink printing of the printing ink lithography apparatus who has several kinds of patterns like this to the application, all belongs to the line of producing that this application technical scheme can upgrade and reform transform.
Preferably, a vacuum adsorption device is arranged on the material table and used for adsorbing and fixing the printing stock on the material table.
By adopting the technical scheme and the vacuum adsorption mode, the printing stock can be fixed on the material table more simply and conveniently.
Preferably, a transmission belt is arranged on the material platform.
Through adopting above-mentioned technical scheme, some produce the line and move the stock through the mode that the manipulator snatched, and some other produce the line and then move the stock through the form that the conveyer belt was carried, the scheme that sets up the conveyer belt on the material bench, mainly be in order to adapt to better and have the production line that the conveyer belt carried and carry out the upgrading transformation.
Preferably, the CCD vision detection device determines the position deviation information of the printing stock in the x direction, the y direction and the theta direction by detecting mark points on the printing stock/determines the position deviation information of the printing stock in the x direction, the y direction and the theta direction by detecting the covering of the printing stock on the mark condition points on the material table.
By adopting the technical scheme, the CCD visual detection device is a quick and convenient method for determining the position deviation information of the printing stock in the x direction, the y direction and the theta direction by detecting the mark points on the printing stock, and the method for determining the position deviation information of the printing stock in the x direction, the y direction and the theta direction by detecting the covering of the mark points of the printing stock on the material table is more complex, but the two modes are modes capable of achieving the purpose of the invention.
Drawings
FIG. 1 is a printing apparatus on an ink printing production line requiring upgrading according to example 1 of the present application;
FIG. 2 is a diagram illustrating a step of determining a deviation correcting bit in embodiment 1 of the present application;
FIG. 3 is another diagram illustrating the step of determining the syndrome bits according to embodiment 1 of the present application;
FIG. 4 is a drawing for explaining the installation procedure of the correction rail in embodiment 1 of the present application;
FIG. 5 is a drawing for explaining a mounting step of a CCD visual inspection device in accordance with embodiment 1 of the present application;
FIG. 6 shows a printing apparatus on an ink printing line requiring upgrading according to example 2 of the present application;
FIG. 7 shows a printing apparatus on an ink printing line requiring upgrading according to example 3 of the present application;
FIG. 8 is a diagram illustrating a step of determining a syndrome bit in embodiment 3 of the present application;
FIG. 9 is a drawing for explaining a step of installing a correction rail according to embodiment 3 of the present application;
FIG. 10 is a drawing for explaining a mounting step of a CCD visual inspection device in embodiment 3 of the present application;
FIG. 11 is a drawing for explaining the difference between embodiment 4 of the present application and embodiment 3 of the present application;
FIG. 12 is a drawing for explaining the difference between embodiment 5 of the present application and embodiment 3 of the present application;
fig. 13 is a drawing for explaining the difference between embodiment 6 of the present application and embodiment 1 of the present application.
Description of reference numerals: 1. a machine platform; 2. a printing device; 3. printing positions; 4. correcting deviation; 5. the area where the trajectory of the substrate runs; 6. correcting the track; 61. a first track; 62. a second track; 7. a material table; 8. CCD visual detection device.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples.
Example 1
Referring to fig. 1, the printing device on the ink printing production line to be upgraded in this embodiment is a small-sized printing device, and includes a machine table 1 and a printing device 2, the printing device 2 can be lowered to the height of a printing object according to a preset program to complete the printing work on the printing object, the flow direction of the ink printing production line to be upgraded in this embodiment is shown by an arrow in the figure, and the printing object is moved to the machine table 1 by a manipulator grabbing manner. Specifically, the printing device of this embodiment is a screen printing machine, and the printing apparatus 2 is a screen printing scraper, and it should be noted that in other embodiments, the printing apparatus 2 may be replaced by a pad printing head of a pad printing machine, a printer head of a digital printer, or a nozzle of an inkjet printer.
The ink printing production line is upgraded by the method for upgrading the ink printing production line required to be protected.
Step 1: referring to fig. 2, the position of the deviation rectifying position 4 for printing the printing material on the old ink printing device is defined as a printing position 3, a position with a horizontal height consistent with the printing position 3 is selected near the machine table 1 as the deviation rectifying position 4, the deviation rectifying position 4 of the embodiment is arranged in a direction perpendicular to the flow direction of the production line, that is, the connecting line between the deviation rectifying position 4 and the printing position 3 is perpendicular to the flow direction of the production line, and the distance between the deviation rectifying position 4 and the machine table 1 is the same as the width of the machine table 1.
Referring to fig. 3, it should be noted that in other embodiments, the deviation rectification positions 4 may also be selected from other positions, such as the positions shown in fig. 3, but it should be noted that the deviation rectification positions 4 may not be selected to coincide with the area 5 where the track of the printing material runs, otherwise the next step of installing the deviation rectification rail 6 cannot be performed. In addition, in other embodiments, the position of the deviation rectifying position 4 may even be a position with a horizontal height slightly different from the horizontal height of the printing position 3, and such a selection is all the technical solutions claimed in the present application.
Step 2: referring to fig. 4, a deviation correcting track 6 is installed, a deviation correcting track 6 is erected between the printing position 3 and the deviation correcting position 4, the deviation correcting track 6 of the embodiment is a straight line type deviation correcting track 6, a material table 7 for placing printing materials is arranged on the deviation correcting track 6, a deviation correcting device (not shown in the figure) for adjusting position deviations of the material table 7 in three directions of x, y and theta is further arranged on the deviation correcting track 6, the material table 7 can reach the deviation correcting position 4 from the printing position 3 along the deviation correcting track 6, and the material table 7 can reach the printing position 3 from the deviation correcting position 4 along the deviation correcting track 6. And a vacuum adsorption device is arranged on the material table 7 and is used for adsorbing and fixing the printing stock on the material table 7.
And step 3: the installation of CCD visual detection device 8, installation CCD visual detection device 8 in the vertical position of rectifying position 4, specifically, CCD visual detection device 8 is installed directly over rectifying position 4, feeds back to rectifying device after CCD visual detection device 8 gathers the positional deviation information in the x, y, the theta three direction of stock, rectifying device carries out the positional deviation in the x, y, theta three direction to material platform 7 and corrects. The CCD vision detecting device 8 of this embodiment determines the positional deviation information in the three directions x, y, and θ of the printing stock by detecting the mark points on the printing stock, and in other embodiments, the CCD vision detecting device 8 may determine the positional deviation information in the three directions x, y, and θ of the printing stock by detecting the covering condition of the printing stock on the mark points on the material table 7.
The work preparation process of the improved printing production line of the embodiment is as follows:
the printing method comprises the steps of placing a printing stock on a material table, conveying the material table to a deviation correction position by a deviation correction track, detecting and determining mark points on the printing stock by a CCD visual detection device, defining the position coordinates as target azimuth coordinates (0, 0, 0), conveying the material table to a printing position by the deviation correction track, finishing printing by a printing device, checking obtained products, selecting the target azimuth coordinates (0, 0, 0) correctly if the pattern position is qualified, finishing a work preparation process, selecting the target azimuth coordinates (0, 0, 0) incorrectly if the pattern position is unqualified, and repeating the operation until the target azimuth coordinates (0, 0, 0) are selected correctly.
The improved printing production line of the embodiment has the following working process:
the printing method comprises the steps of placing a printing stock on a material table, conveying the material table to a deviation correction position by a deviation correction track, detecting and determining a mark point on the printing stock by a CCD visual detection device to obtain an initial placement coordinate (X, Y and theta) of the mark point, adjusting the position of the material table by the deviation correction device to enable the mark point to reach a target azimuth coordinate (0, 0 and 0), conveying the material table to a printing position by the deviation correction track, taking the printed printing stock off the material table after printing of the printing stock is completed by printing equipment, finishing the printing process of one printing stock at the moment, and printing the next printing stock.
Example 2
Referring to fig. 6, the present embodiment is different from embodiment 1 in that the ink printing apparatus of the ink printing line upgraded in the present embodiment transports the printing material by the conveyor belt, so the material table 7 of the present application is provided with the conveyor belt.
Example 3
Referring to fig. 7, the printing device on the ink printing production line to be upgraded in this embodiment is a four-turn table printing device, and also includes a machine table 1 and a printing device 2, and is provided with four printing positions 3, and when the printing positions 3 rotate to a position below the printing device 2, the printing device 2 completes printing work. Specifically, the rotation direction of the printing position 3 in this embodiment is clockwise. Specifically, the printing device of this embodiment is a screen printing machine, and the printing apparatus 2 is a screen printing scraper, and it should be noted that, in other embodiments, the printing apparatus 2 may be replaced by a pad printing head of a pad printing machine, a printer head of a digital printer, or a nozzle of an inkjet machine.
The ink printing production line is upgraded by the method for upgrading the ink printing production line required to be protected.
Step 1: referring to fig. 8, the deviation correcting position 4 is determined by selecting a position near the machine table 1, where the horizontal height of the position is consistent with the printing position 3, as the deviation correcting position 4, where the track of the printing stock running on the ink printing line of this embodiment is an arc, and the deviation correcting position 4 of this embodiment is arranged in the tangential direction of the arc.
Step 2: referring to fig. 9, a deviation correcting track 6 is installed, the deviation correcting track 6 is erected between the printing positions 3 and the deviation correcting positions 4, a material table 7 for placing a printing material is arranged on the deviation correcting track 6, a deviation correcting device (not shown in the figure) for adjusting position deviations of the material table 7 in three directions x, y and theta is further arranged on the deviation correcting track 6, specifically, the deviation correcting track 6 of the embodiment includes a first track 61 arranged above the four printing positions 3 for communicating the four printing positions 3 and a second track 62 for conveying the material table 7 to the deviation correcting positions 4, the material table 7 can pass through the four printing positions 3 along the first track 61, and can move to the deviation correcting positions 4 along the second track 62 when deviation correction is needed, and the material table 7 can return to the printing positions 3 along the second track 6 after deviation correction is finished.
And step 3: referring to fig. 10, the CCD vision detecting device 8 is installed in the vertical direction of the deviation correcting position 4, specifically, the CCD vision detecting device 8 is installed right above the deviation correcting position 4, the CCD vision detecting device 8 collects position deviation information of the printing stock in the x, y and theta directions and feeds the position deviation information back to the deviation correcting device, and the deviation correcting device corrects the position deviation of the material table 7 in the x, y and theta directions.
Example 4
Referring to fig. 11, the difference between the present embodiment and embodiment 2 is that the deviation correction 4 and the second track 6 are different from embodiment 2, and the second track 6 is arc-shaped. By adopting the mode of the embodiment, the upgrading and transforming requirements of different production lines can be adapted.
Example 5
Referring to fig. 12, the difference between this embodiment and embodiment 2 is that the deviation correction 4 and the pattern of the second track 6 are different from embodiment 2, and the pattern of the second track 6 is a broken line type. By adopting the mode of the embodiment, the upgrading and transforming requirements of different production lines can be adapted.
Example 6
Referring to fig. 13, the printing device 2 is not shown in fig. 13, the line upgrading method of the present embodiment is substantially the same as that of embodiment 1, except that an included angle is formed in an area 5 where a track of the printing material running on the ink printing line of the present embodiment is located, that is, an incoming direction of the track of the printing material running forms an included angle with an outgoing direction, and a connecting line of the deviation rectifying position 4 and the printing position 3 coincides with a diagonal line of a reflex angle formed by the track of the printing material running on the ink printing line.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. An ink printing production line upgrading method is characterized by comprising the following steps:
step 1: determining deviation correction (4), namely defining the position of printing stock on old ink printing equipment as a printing position (3), selecting a position with a horizontal height approximately equal to that of the printing position (3) near a machine table (1) as the deviation correction (4), wherein the deviation correction (4) cannot coincide with the running track of the printing stock on an ink printing production line;
step 2: installing a deviation rectifying track (6), erecting the deviation rectifying track (6) between the printing position (3) and the deviation rectifying position (4), wherein a material table (7) for placing printing stocks is arranged on the deviation rectifying track (6), a deviation rectifying device for adjusting position deviation of the material table (7) in x, y and theta directions is also arranged on the deviation rectifying track (6), the material table (7) can reach the deviation rectifying position (4) from the printing position (3) along the deviation rectifying track (6), and the material table (7) can reach the printing position (3) from the deviation rectifying position (4) along the deviation rectifying track (6);
and step 3: the installation of CCD visual detection device (8), installation CCD visual detection device (8) on the vertical position of rectifying deviation (4), CCD visual detection device (8) gather the position deviation information of stock in the three direction of x, y, theta and feed back to deviation correcting device, deviation correcting device carries out the position deviation in the three direction of x, y, theta to material platform (7) and corrects.
2. The ink printing production line upgrading method according to claim 1, characterized in that: the deviation correcting position (4) is consistent with the horizontal height of the printing position (3).
3. The ink printing production line upgrading method according to claim 1, characterized in that: the deviation rectifying track (6) is one of a linear track, a broken line track or an arc track.
4. The ink printing production line upgrading method according to claim 1, characterized in that: the deviation rectifying track (6) is a linear track; when the moving track of the printing stock on the ink printing production line is a straight line, the connecting line of the deviation correcting position (4) and the printing position (3) is vertical to the moving track of the printing stock on the printing production line; when the moving track of the printing stock on the ink printing production line is an arc line, the connecting line of the deviation correcting position (4) and the printing position (3) is vertical to the tangent line of the arc line at the screen printing position; when the track of the printing stock running on the ink printing production line forms an included angle, namely the incoming material direction of the track of the printing stock running and the discharging direction form an included angle, the connecting line of the deviation correction position (4) and the printing position (3) and the track of the printing stock running on the ink printing production line form a diagonal line of a reflex angle to be superposed.
5. The ink printing production line upgrading method according to claim 1, characterized in that: the CCD visual detection device (8) is arranged right above the deviation correction position (4).
6. The ink printing production line upgrading method according to claim 1, characterized in that: the deviation rectifying track (6) is provided with mechanical positioning structures at the deviation rectifying position (4) and the printing position (3).
7. The ink printing production line upgrading method according to claim 1, characterized in that: the ink printing equipment is one of a screen printer, a pad printer, a digital printer or an ink jet printer.
8. The ink printing production line upgrading method according to claim 1, characterized in that: and a vacuum adsorption device is arranged on the material table (7) and is used for adsorbing and fixing the printing stock on the material table (7).
9. The ink printing production line upgrading method according to claim 1, characterized in that: the material platform (7) is provided with a transmission belt.
10. The ink printing production line upgrading method according to claim 1, characterized in that: the CCD visual detection device (8) determines the position deviation information of the printing stock in the x direction, the y direction and the theta direction by detecting the mark points on the printing stock/the CCD visual detection device (8) determines the position deviation information of the printing stock in the x direction, the y direction and the theta direction by detecting the covering condition of the printing stock on the mark points on the material table (7).
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