CN113173000B - Screen printing plate management method and elliptical printing machine - Google Patents
Screen printing plate management method and elliptical printing machine Download PDFInfo
- Publication number
- CN113173000B CN113173000B CN202110483878.5A CN202110483878A CN113173000B CN 113173000 B CN113173000 B CN 113173000B CN 202110483878 A CN202110483878 A CN 202110483878A CN 113173000 B CN113173000 B CN 113173000B
- Authority
- CN
- China
- Prior art keywords
- scraping
- printing plate
- screen printing
- scraper
- screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
- B41F15/36—Screens, Frames; Holders therefor flat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/44—Squeegees or doctors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/02—Arrangements of indicating devices, e.g. counters
- B41F33/025—Counters
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/08—Design features of general application for actuating the drive
- G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
- G06M1/101—Design features of general application for actuating the drive by electric or magnetic means by electro-optical means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Screen Printers (AREA)
Abstract
The invention provides a screen management method and an elliptical printing machine, wherein the screen management method comprises the following steps: acquiring the times of scraping the screen printing plate by a scraper; comparing the number of times of scraping the screen printing plate by the scraper with the maximum scraping number of times; and stopping scraping the screen printing plate by the scraper when the scraping frequency of the scraper on the screen printing plate is not less than the maximum scraping frequency. Compared with the prior art, the screen printing plate management method has the advantages that the maximum scraping times of the screen printing plate are preset, so that the screen printing plate stops printing after the maximum use times, and the generation of defective products is avoided.
Description
Technical Field
The invention relates to the technical field of printing, in particular to a screen management method and an elliptical printing machine.
Background
In the screen printing industry, a screen is a key part, and the quality of the screen is an important factor influencing the quality of a printed product; the quality of the screen is embodied in two aspects, one is that the screen is damaged, and the other is that the tension of the screen is insufficient; the half tone damages and can lead to output defective products, and half tone tension is not enough can lead to the printed matter image deformation distortion to appear, the cover position is inaccurate, defects such as lace, color bleeding, also can lead to the production of defective products equally, in actual production, even begin qualified half tone, also have certain life, along with the increase of number of times of use, the continuous flexible and fatigue of gauze leads to half tone tension to descend and the gauze is damaged.
At present, the quality problems of the screen printing plate are difficult to find in time by manual inspection and finished product detection during printing, and the irrecoverable loss and waste are already caused when the quality problems of the screen printing plate are usually found.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a screen printing plate management method and an elliptical printing machine.
One embodiment of the present invention provides a screen management method, including:
acquiring the number of times of scraping the screen printing plate by a scraper;
comparing the number of times of scraping the screen printing plate by the scraper with the maximum scraping number of times;
and stopping the scraping of the screen printing plate by the scraper when the scraping times of the scraper to the screen printing plate are not less than the maximum scraping times.
Compared with the prior art, the screen printing plate management method has the advantages that the maximum scraping times of the screen printing plate are preset, so that the screen printing plate stops printing after the maximum use times, and the generation of defective products is avoided.
Further, before the step of obtaining the number of times of scraping the screen printing plate by the scraper, the method further includes:
when the screen printing plate is replaced, acquiring a mark pattern on the screen printing plate through an image acquisition device;
determining the number information corresponding to the screen printing plate according to the mark pattern;
and acquiring the current scraping times and the maximum printing times corresponding to the screen printing plate in the memory according to the number information.
Further, the number of times of scraping the screen printing plate by the scraper is judged and calculated according to the number of times of shielding the mark pattern in the detection image acquired by the image acquisition device by the scraper.
Further, the shapes and/or colors of the mark patterns corresponding to different screens are different.
Further, the maximum number of times of squeegees is determined based on a material of the squeegee and a material of the screen.
Further, the maximum scraping number is determined according to the pressure of the scraper on the screen and the tension of the screen.
Further, when the number of times of scraping the screen printing plate by the scraper is smaller than the maximum scraping number of times, acquiring the tension of the screen printing plate, and if the tension of the screen printing plate is smaller than a preset tension, stopping scraping the screen printing plate by the scraper.
Further, when the number of times of scraping the screen by the scraper is not less than the maximum number of times of scraping, stopping scraping of the screen by the scraper includes: and when the scraping times of the scraper on the screen printing plate are not less than the maximum scraping times, stopping scraping of the scraper on the screen printing plate, and replacing the screen printing plate.
Another embodiment of the present invention provides an elliptical printing machine, which is applied to the screen management method described above, and includes: the printing device comprises a screen printing plate arranged on the rack and a scraper movably arranged on the rack, wherein the scraper is connected with the counter.
In order that the invention may be more clearly understood, specific embodiments thereof will be described hereinafter with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic flow chart of a screen management method according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an elliptical printing machine according to another embodiment of the invention;
fig. 3 is a schematic structural diagram of a printing apparatus according to another embodiment of the present invention.
Description of reference numerals:
10. a frame; 20. a printing platen; 30. a printing device; 40. screen printing; 50. and (4) scraping the blade.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1, which is a flowchart illustrating a screen management method according to an embodiment of the present invention, the screen management method includes:
step S1: and acquiring the number of times of scraping the screen printing plate by the scraper.
Step S2: and comparing the number of times of scraping the screen printing plate by the scraper with the maximum scraping number of times.
And step S3: when the number of times of scraping the screen printing plate by the scraper is not less than the maximum scraping number of times, stopping scraping the screen printing plate by the scraper, and if the screen printing plate exceeds the maximum scraping number of times, the quality problem possibly exists and the screen printing plate needs to be overhauled or replaced.
As the screen is not continuously used in the same printing apparatus, and there is a case of being changed to another position or being temporarily removed, in some optional embodiments, the marking pattern may record the number information of the screen, the image capturing device captures the marking pattern during printing to determine the number information of the screen, and records the number of times the screen is scratched and stores the number information in the memory; when the screen printing plate is replaced, the mark pattern on the screen printing plate is obtained through an image acquisition device arranged on a printing device, the number information corresponding to the screen printing plate is determined according to the mark pattern, and the current scraping times and the maximum printing times which are scraped by a scraper and correspond to the screen printing plate in a memory are correspondingly obtained according to the number information. Preferably, the marking pattern corresponds to a single screen, and in order to distinguish the respective marking patterns, the shapes and/or colors of different marking patterns are different, for example, different marking patterns correspond to different digital patterns, geometric patterns, two-dimensional code patterns, or the like; alternatively, different mark patterns have different lightness values, gradation values, hues, or saturation levels, etc., in the detection image captured by the image capturing device. The manner of acquiring the number of times that the squeegee scrapes the screen plate may be designed according to actual needs, for example, a proximity switch, an infrared sensor, or other sensor is provided near the screen plate, and the number of times that the squeegee scrapes the screen plate is determined by detecting the number of times that the squeegee approaches the sensor. Of course, the number of times of the screen printing by the scraper can also be judged and calculated by determining the number of times of the scraper shielding the mark pattern on the screen, the infrared transmitting receiver or the image acquisition device faces the mark pattern, and the scraper shields the mark pattern after moving, so that the infrared transmitting receiver is triggered to generate a signal, or a detection image in the image acquisition device is changed, and the number of times of the screen printing by the scraper is judged. In this embodiment, the number of times of the scraper scraping the screen printing plate is determined and calculated by the number of times that the scraper shields the mark pattern in the detection image acquired by the image acquisition device, so that the number of times of scraping the screen printing plate corresponding to each mark pattern is conveniently counted and recorded, the detection mode is simplified, and the cost is reduced.
The maximum number of times of squeegeeing may be determined statistically according to field usage data, for example, the maximum number of times of squeegeeing of the same type of screen is determined by obtaining an average number of times of squeegeeing experienced when a plurality of screens are damaged in actual use. The screen printing plate can change the maximum scraping times according to different materials of the actually selected screen gauze, and the material of the scraper can influence the maximum scraping times of the screen printing plate. For example, the friction force of the screen relative to the scraper affects the damage speed of the screen, so that the larger the friction force of the screen relative to the scraper is, the smaller the maximum use times of the screen is, and the different materials selected by the screen and the scraper will affect the friction force between the scraper and the screen, so that the materials of the screen and the scraper need to be obtained and judged according to the friction force between the actual scraper and the screen, and the formula for comprehensively judging the maximum scraping times affected by the friction force can be realized by counting the data of the on-site scraping times of a plurality of screens actually, thereby facilitating the judgment of the maximum scraping times of the subsequent screens.
In addition, in some optional embodiments, the maximum number of times of scraping may also be determined according to a pressure of the scraper on the screen, where the larger the pressure of the scraper on the screen is, the smaller the maximum number of times of scraping is, and the pressure of the scraper actually affects the friction force of the scraper on the screen. In addition, the pressure of the scraper on the screen can be detected in real time through a force sensor arranged on the scraper, and the pressure of the scraper on the screen can be different when slurry is replaced or in other scraping modes, so that the maximum scraping frequency of the screen can be adjusted according to the change of the pressure of the scraper on the screen.
In some optional embodiments, the maximum number of passes is determined according to the initial tension of the screen, and the friction force of the scraper on the screen is affected, so that the maximum number of passes of the screen can be adjusted according to the initial tension of the screen. The tension of the screen printing plate is reduced along with the change of the use times, whether the screen printing plate reaches the use standard can be judged by detecting the tension of the screen printing plate in real time, if the scraping times of the scraper on the screen printing plate are smaller than the maximum scraping times, when the tension of the screen printing plate is smaller than the preset tension, the tension of the screen printing plate is not up to the use standard, the scraping of the scraper on the screen printing plate should be stopped, and the situation that the unqualified screen printing plate is produced due to the fact that the screen printing plate which is not in accordance with the standard is continuously used is avoided.
It should be noted that the maximum number of times of use of the screen printing plate can be comprehensively determined by combining the above-mentioned material of the screen printing plate, the material of the scraper, the pressure of the scraper on the screen printing plate, and the tension of the screen printing plate, and specifically, the maximum number of times of use of the screen printing plate can be determined by counting the changes caused by different influencing factors during actual use.
In some alternative embodiments, in step S3: when the number of times of scraping the screen printing plate by the scraper is not less than the maximum scraping number of times, stopping scraping the screen printing plate by the scraper comprises: when the number of times of scraping the screen printing by the scraper is not less than the maximum scraping number of times, stopping scraping the screen printing by the scraper, and sending an alarm signal to remind a worker that the screen printing exceeds the maximum scraping number of times, possibly having quality problems and needing to be checked or replaced, wherein the alarm signal comprises one or more of a light signal, a sound signal and a vibration signal, and of course, the alarm signal can also be an alarm mark displayed on a display panel of the electronic device.
In some optional embodiments, in step S3: when the number of times of scraping the screen printing plate by the scraper is not less than the maximum scraping number of times, stopping scraping the screen printing plate by the scraper comprises: and when the number of times of scraping the screen printing plate by the scraper is not less than the maximum scraping number of times, stopping scraping the screen printing plate by the scraper, wherein the screen printing plate exceeds the maximum scraping number of times, possibly causing quality problems, and replacing the screen printing plate.
Referring to fig. 2 and 3, fig. 2 is a schematic structural diagram of an elliptical printing machine according to another embodiment of the present invention, and fig. 3 is a schematic structural diagram of a printing apparatus according to another embodiment of the present invention, which can be applied to the screen management method described above, including: the printing device comprises a machine frame 10, a guide rail arranged on the machine frame 10, a printing platen 20 arranged on the guide rail and driven by a driving mechanism, a plurality of printing devices 30 arranged on the machine frame 10 and arranged in sequence along the guide rail, and a counter, wherein each printing device 30 comprises a screen 40 arranged on the machine frame 10 and a scraper 50 movably arranged on the machine frame 10, and the scraper 50 is connected with the counter.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A screen management method is characterized by comprising the following steps:
acquiring the times of scraping the screen printing plate by a scraper;
comparing the number of times of scraping the screen printing plate by the scraper with the maximum scraping number of times;
when the number of times of scraping the screen printing plate by the scraper is not less than the maximum scraping number of times, stopping scraping the screen printing plate by the scraper, and sending an alarm signal;
before the step of obtaining the number of times of screen printing by the scraper, the method further comprises:
when the screen printing plate is replaced, acquiring a mark pattern on the screen printing plate through an image acquisition device;
determining the number information corresponding to the screen printing plate according to the marking pattern;
acquiring the current scraping times and the maximum printing times corresponding to the screen printing plate in a memory according to the number information;
and judging and calculating the times of scraping the screen printing plate by the scraper through the times of shielding the mark pattern in the detection image acquired by the image acquisition device by the scraper.
2. The method of claim 1, wherein: and the shapes and/or colors of the mark patterns corresponding to different screen printing plates are different.
3. The method of any one of claims 1 to 2, wherein: the maximum scraping times are determined according to the material of the scraper and the material of the screen printing plate.
4. The method of any one of claims 1 to 2, wherein: and the maximum scraping times are determined according to the pressure of the scraper on the screen and the tension of the screen.
5. The method of any one of claims 1 to 2, wherein: and when the number of times of scraping the screen printing plate by the scraper is smaller than the maximum scraping number of times, acquiring the tension of the screen printing plate, and if the tension of the screen printing plate is smaller than the preset tension, stopping scraping the screen printing plate by the scraper.
6. The method of any one of claims 1 to 2, wherein stopping the scraping of the screen by the scraper when the number of times the scraper scrapes the screen is not less than the maximum number of times of scraping comprises: and when the number of times of scraping the screen printing plate by the scraper is not less than the maximum scraping number of times, stopping scraping the screen printing plate by the scraper, and replacing the screen printing plate.
7. An elliptical printing machine applied to the screen management method of any one of claims 1 to 6, comprising: the printing device comprises a screen printing plate arranged on the rack and a scraper movably arranged on the rack, wherein the scraper is connected with the counter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110483878.5A CN113173000B (en) | 2021-04-30 | 2021-04-30 | Screen printing plate management method and elliptical printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110483878.5A CN113173000B (en) | 2021-04-30 | 2021-04-30 | Screen printing plate management method and elliptical printing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113173000A CN113173000A (en) | 2021-07-27 |
| CN113173000B true CN113173000B (en) | 2023-01-31 |
Family
ID=76926555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110483878.5A Active CN113173000B (en) | 2021-04-30 | 2021-04-30 | Screen printing plate management method and elliptical printing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113173000B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09323402A (en) * | 1996-06-06 | 1997-12-16 | Matsushita Electric Ind Co Ltd | Screen printing apparatus for cream solder |
| CN1716306B (en) * | 2004-07-02 | 2010-05-05 | 鸿富锦精密工业（深圳）有限公司 | Tool and gauge management and control system and method |
| CN203752659U (en) * | 2014-01-21 | 2014-08-06 | 苏州佳宏光电有限公司 | Screen printing machine |
| CN108733908B (en) * | 2018-05-16 | 2022-06-14 | 苏州迈为科技股份有限公司 | Screen life cycle analysis method and printing early warning method based on same |
| CN211518823U (en) * | 2019-12-06 | 2020-09-18 | 信利光电股份有限公司 | Screen printing plate capable of automatically counting and displaying |
| CN111251704B (en) * | 2020-02-25 | 2021-08-17 | 东莞威冠服饰工艺有限公司 | Oval automatic printing machine |
-
2021
- 2021-04-30 CN CN202110483878.5A patent/CN113173000B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113173000A (en) | 2021-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1690678B (en) | Image analysis method, image analysis program and pixel evaluation system having the sames | |
| JP6738269B2 (en) | Method for checking image inspection system | |
| CN110018172B (en) | Product detection system and method | |
| CA2058242C (en) | Print monitoring apparatus | |
| US10623605B2 (en) | Method for image inspection of printed products using adaptive image smoothing | |
| US20140307948A1 (en) | Solder print inspecting device | |
| CN110293753B (en) | Method for image detection of printed products by means of a computer | |
| CN113173000B (en) | Screen printing plate management method and elliptical printing machine | |
| CN113406110A (en) | Printing quality detection method, device, equipment and computer medium | |
| US20070263862A1 (en) | Manufacturing process and apparatus for printing imprint on defective board | |
| US6909502B2 (en) | Method and apparatus for measuring ripple and distortion in a transparent material | |
| JP2002031606A (en) | Apparatus and method for evaluating quality, apparatus and method for displaying quality, and quality evaluation system | |
| US20070091395A1 (en) | Device and method for measuring and determining the quality of holographic image | |
| CN115546140A (en) | Display panel detection method and system and electronic device | |
| JP3047414B2 (en) | Screen printing apparatus and method | |
| US5816164A (en) | Method and apparatus for monitoring image formation on a printing form | |
| JP2017003352A (en) | Detecting device for faulty rubber adhesion of topping rubber sheets | |
| US20090268950A1 (en) | Product-Quality Inspection System and Method thereof | |
| CN215435512U (en) | Printing machine | |
| JP2011158421A (en) | Printed matter inspection device | |
| JP6614829B2 (en) | Film circuit board manufacturing monitoring device | |
| KR102049563B1 (en) | PCB overlap detection system and method in PCB manufacturing process | |
| KR101086333B1 (en) | Detection method of surface defect on strip | |
| CN215812485U (en) | Screen printing plate detection device | |
| US8089667B2 (en) | Method for determining parameters relevant to the print quality of a printed product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |