CN210821349U - PCB character silk screen printing production system - Google Patents
PCB character silk screen printing production system Download PDFInfo
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- CN210821349U CN210821349U CN201920894062.XU CN201920894062U CN210821349U CN 210821349 U CN210821349 U CN 210821349U CN 201920894062 U CN201920894062 U CN 201920894062U CN 210821349 U CN210821349 U CN 210821349U
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Abstract
The utility model discloses a PCB character silk-screen production system, which provides a PCB to be silk-screen for a first silk-screen machine through a first plate placing machine; then, performing silk-screen printing treatment on the PCB to be silk-screened by a first silk-screen printing machine; and baking the PCB after silk screen printing through a first baking machine so that characters on the PCB are more stable. When first silk screen printing machine need be maintained, start the second and put the trigger, put the trigger through the second, continue to provide the PCB after the surface treatment to first roaster, so for first roaster operating condition all the time, avoid first roaster to be in idle state because of first silk screen printing machine is maintained, thereby make PCB character silk screen printing production system maximize and utilize the energy, greatly reduce the energy consumption in the PCB character silk screen printing production process. Meanwhile, the PCB character silk-screen production system is always in a continuous production state through the second plate placing machine, the processing capacity of the PCB character silk-screen production system is improved, and the output of the PCB character silk-screen production system is improved.
Description
Technical Field
The utility model relates to a PCB silk screen printing technical field especially relates to a PCB character silk screen printing production system.
Background
In the PCB manufacturing industry, various characters need to be printed on a PCB in a silk-screen mode so as to mark basic information of a circuit board manufacturer, a period, codes of various elements and the like; the printed PCB is usually baked to solidify the inner layer of pure glue, so that the inner layer of pure glue can be better bonded with the board. The traditional PCB character silk-screen production mode mainly comprises full-automatic character silk-screen, character printing, semi-automatic character silk-screen and manual character silk-screen.
However, in the traditional PCB character silk-screen production process, the screen printing plate in the silk-screen machine needs to be replaced regularly, so that the oven is easily in an idle state, and the energy consumption is seriously increased.
SUMMERY OF THE UTILITY MODEL
Therefore, a PCB character silk-screen production system is needed to be provided, the oven is effectively prevented from being in an idle state, and the reduction of energy consumption is facilitated.
The technical scheme is as follows:
a PCB character silk screen printing production system includes: the first plate placing machine is used for providing a PCB to be subjected to silk-screen printing; the first screen printing machine is used for receiving the PCB provided by the first plate placing machine and carrying out screen printing on the PCB; the second plate placing machine is used for providing the PCB with the processed surface; and the output end of the first screen printing machine and the output end of the second board placing machine are respectively connected with the input end of the first baking machine, and the first baking machine is used for baking the PCB output by the first screen printing machine and the PCB provided by the second board placing machine.
According to the PCB character silk-screen production system, the PCB to be silk-screened is provided for the first silk-screen machine through the first plate placing machine; then, performing silk-screen printing treatment on the PCB to be silk-screened by a first silk-screen printing machine; and baking the PCB after silk screen printing through a first baking machine so that characters on the PCB are more stable. When first silk screen printing machine was maintained, start the second and put the trigger, put the trigger through the second, continue to provide the PCB after the surface treatment to first roaster, so for first roaster operating condition all the time, avoid first roaster to be in idle state because of first silk screen printing machine is maintained, thereby make PCB character silk screen printing production system can the maximize and utilize the energy, greatly reduce the energy consumption in the PCB character silk screen printing production process. Simultaneously, this scheme is put the trigger through the second for PCB character silk screen printing production system is in the continuous production state all the time, has improved PCB character silk screen printing production system's handling capacity, thereby is favorable to improving PCB character silk screen printing production system's output.
In one embodiment, the PCB character screen printing production system further comprises a panel turnover machine and a second screen printing machine, wherein an input end of the panel turnover machine is connected with an output end of the first baking machine, the panel turnover machine is used for overturning the PCBs output by the first baking machine, and the second screen printing machine is used for receiving the PCBs output by the panel turnover machine and performing screen printing on the PCBs.
In one embodiment, the PCB character silk-screen production system further comprises a conveying assembly, and the input end of the board turnover machine is connected with the output end of the first baking machine through the conveying assembly.
In one embodiment, the conveying assembly comprises a first steering machine and a second steering machine, and the first steering machine and the second steering machine are respectively used for steering and conveying the PCB at preset angles.
In one embodiment, the PCB character screen printing production system further comprises a second baking machine, wherein an input end of the second baking machine is connected with an output end of the second screen printing machine, and the second baking machine is used for baking the PCB output by the second screen printing machine.
In one embodiment, the PCB character screen printing production system further comprises a third plate placing machine, the third plate placing machine is used for providing the surface-treated PCB, and an output end of the third plate placing machine is also connected with an input end of the second baking machine.
In one embodiment, the PCB character screen printing production system further comprises a first board collecting machine, an input end of the first board collecting machine is connected with an output end of the second baking machine, and the first board collecting machine is used for collecting PCBs output by the second baking machine.
In one embodiment, the PCB character screen printing production system further comprises a second board collecting machine, an input end of the second board collecting machine is connected with an output end of the first baking machine, and the second board collecting machine is used for collecting PCBs output by the first baking machine.
In one embodiment, more than two heating areas are arranged in the first baking machine at intervals, and the more than two heating areas are arranged along the length direction of the first baking machine.
In one embodiment, the number of the heating regions is four, the four heating regions are divided into a first heating region, a second heating region, a third heating region and a fourth heating region, and the first heating region, the second heating region, the third heating region and the fourth heating region are sequentially arranged along the length direction of the first baking machine at intervals.
A PCB character silk-screen production method comprises the following steps: performing silk-screen printing on the PCB to be subjected to silk-screen printing through a first silk-screen printing machine, and outputting the PCB subjected to silk-screen printing to a first baking machine; baking the PCB subjected to silk-screen printing through the first baking machine; and when the first screen printer is maintained, the PCB subjected to surface treatment is provided for the first baking machine through the second plate placing machine to be baked.
According to the PCB character silk-screen production method, the PCB to be silk-screen is subjected to silk-screen processing through the first silk-screen machine; and baking the PCB after silk screen printing through a first baking machine so that characters on the PCB are more stable. When first silk screen printing machine was maintained, start the second and put the trigger, put the trigger through the second, continue to provide the PCB after the surface treatment to first roaster, so for first roaster operating condition all the time, avoid first roaster to be in idle state because of first silk screen printing machine is maintained, thereby make PCB character silk screen printing production system can the maximize and utilize the energy, greatly reduce the energy consumption in the PCB character silk screen printing production process. Simultaneously, this scheme is put the trigger through the second for PCB character silk screen printing production system is in the continuous production state all the time, has improved PCB character silk screen printing production system's handling capacity, thereby is favorable to improving PCB character silk screen printing production system's output.
In one embodiment, the step of baking the screen-printed PCB includes: setting more than two heating areas for the first baking machine, and controlling the heating areas to be heated to a preset temperature value; and baking the PCB subjected to silk-screen printing sequentially through more than two heating areas.
Drawings
Fig. 1 is a schematic structural diagram of a PCB character screen printing production system according to an embodiment of the present invention;
fig. 2 is a flow chart of a PCB character screen printing production method according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a specific baking method of the first baking machine according to an embodiment of the present invention;
fig. 4 is a flow chart of a PCB character screen printing production method according to an embodiment of the present invention.
Description of reference numerals:
100. the PCB character silk-screen production system comprises a 110, a first plate placing machine, a 120, a first silk-screen machine, a 130, a second plate placing machine, a 140, a first baking machine, a 141, a first temperature adding area, a 142, a second temperature adding area, a 143, a third temperature adding area, a 144, a fourth temperature adding area, a 150, a conveying assembly, a 151, a first steering machine, a 152, a second steering machine, a 160, a plate turnover machine, a 170, a second silk-screen machine, a 180, a second baking machine, a 190, a first plate collecting machine, a 191 and a second plate collecting machine.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the present invention, the terms "first" and "second" do not denote any particular quantity or order, but are merely used to distinguish names.
In one embodiment, referring to fig. 1, a PCB character silk-screen production system 100 includes: a first plate placing machine 110, a first screen printing machine 120, a second plate placing machine 130 and a first baking machine 140. The first board placing machine 110 is used for providing the PCBs to be screen-printed. The first screen printer 120 is configured to receive the PCBs provided by the first plate placing machine 110 and perform screen printing on the PCBs. The second board placing machine 130 is used to provide the surface-treated PCB. The output end of the first screen printer 120 and the output end of the second plate placing machine 130 are respectively connected with the input end of the first baking machine 140. The first baking machine 140 is used for baking the PCBs output by the first screen printing machine 120 and the PCBs provided by the second plate placing machine 130.
In the PCB character screen printing production system 100, the first plate placing machine 110 provides the PCB to be screen printed to the first screen printing machine 120; then, the PCB to be silk-screened is silk-screened by the first silk-screen machine 120; the printed PCB is baked by the first baking machine 140, so that the characters on the PCB are more stable. When the first screen printer 120 needs to be maintained, the second trigger 130 is started, and the surface-treated PCB is continuously provided to the first baking machine 140 through the second trigger 130, so that the first baking machine 140 is always in a working state, and the first baking machine 140 is prevented from being in an idle state due to maintenance of the first screen printer 120, so that the energy of the PCB character screen printing production system 100 is maximally utilized, and energy consumption in the PCB character screen printing production process is greatly reduced. Meanwhile, in the embodiment, the second plate placing machine 130 is used to keep the PCB character screen printing production system 100 in a continuous production state all the time, so that the throughput of the PCB character screen printing production system 100 is increased, and the yield of the PCB character screen printing production system 100 is increased. Specifically, in this embodiment, the second plate placing machine 130 is located between the first screen printing machine 120 and the first baking machine 140, and the second plate placing machine 130, the first screen printing machine 120 and the first baking machine 140 are connected by a conveyor respectively, so that the PCB can smoothly circulate between the two devices. Wherein, the conveyer can be a belt conveyer, a chain conveyer or a roller conveyer.
It should be noted that the PCB after surface treatment refers to a PCB after surface treatment process, wherein the surface treatment process may be a printing process or a silk-screen printing process, and when the surface treatment process is the printing process, characters, serial numbers, two-dimensional codes, blue gel or carbon oil may be printed on the PCB. When the surface treatment process is a silk-screen process, the PCB is processed by another silk-screen machine.
Optionally, the first roaster 140 is a two-row suspended oven or an IR infrared tunnel oven, in particular, in the present embodiment, the first roaster 140 is a two-row suspended oven.
Further, the PCB character screen printing production system 100 further includes a panel turnover machine 160 and a second screen printing machine 170. The input end of the panel turnover machine 160 is connected with the output end of the first roasting machine 140. The board turnover device 160 is used for turning over the PCB output by the first roaster 140. The second screen printer 170 is configured to receive the PCBs output by the panel turnover 160 and perform screen printing on the PCBs. Therefore, when both side surfaces of the PCB need to be subjected to character screen printing, the PCB output by the first baking machine 140 enters the panel turnover machine 160, and the PCB is turned over by the panel turnover machine 160, so that the side surface of the PCB, which is not subjected to screen printing, is placed upwards; and then, performing character silk-screen printing on one side surface of the PCB which is not subjected to silk-screen printing through a second silk-screen printing machine 170, thus completing the character silk-screen printing operation of the double side surfaces of the PCB. In this embodiment, the board turnover machine 160 and the second screen printing machine 170 are used to fully automate the screen printing operation of characters on both sides of the PCB, thereby greatly improving the production efficiency of the screen printing of the characters on the PCB. Meanwhile, the turnover machine 160 is also beneficial to reducing the board temperature of the baked PCB, and the phenomenon that the expansion of the screen printing plate of the second screen printing machine 170 is too large due to too high board temperature in the second screen printing process of the baked PCB is avoided, so that screen printing deviation is avoided. In the present embodiment, the panel turnover machine 160 is a solar panel turnover machine.
Further, the PCB character silkscreen production system 100 further includes a conveying assembly 150. The input end of the panel turnover machine 160 is connected to the output end of the first roasting machine 140 through the conveying assembly 150. Thus, the conveying assembly 150 can stably and continuously convey the PCB from the first baking machine 140 to the panel turnover machine 160, which is beneficial to the continuous and stable operation of the PCB character screen printing production system 100.
In one embodiment, the conveying assembly 150 includes a first steering gear 151 and a second steering gear 152, and the first steering gear 151 and the second steering gear 152 are respectively used for steering and conveying the PCBs at a preset angle. Therefore, the present embodiment realizes the PCB steering transportation by the first steering gear 151 and the second steering gear 152, so as to better arrange the first screen printer 120, the first baking machine 140, the panel turnover 160, and the second screen printer 170. Specifically, in this embodiment, the preset angle is 90 °, and at this time, the PCB can be conveyed by 180 ° steering or approximately 180 ° steering, so that the production line formed by the first screen printing machine 120 and the first baking machine 140 can be parallel to the production line formed by the panel turnover machine 160 and the second screen printing machine 170, and thus, the device distribution of the PCB character screen printing production system 100 is more compact, which is beneficial to reducing the device occupation space of the PCB character screen printing production system 100.
In one embodiment, the PCB character screen printing production system 100 further includes a second baking machine 180. The input end of the second baking machine 180 is connected with the output end of the second screen printing machine 170, and the second baking machine 180 is used for baking the PCB output by the second screen printing machine 170. So, through second roaster 180 for the PCB of second silk screen printing machine 170 output obtains effectively toasting, thereby makes the character adhesion on the PCB more stable.
Further, the PCB character silk-screen production system 100 further includes a third plate placing machine (not shown). A third board loader (not shown) is used to supply the surface-treated PCBs, and an output terminal of the third board loader (not shown) is also connected to an input terminal of the second toaster 180. Therefore, when the second screen printer 170 is maintained, a third plate placing machine (not shown) is started, and the surface-treated PCB is continuously provided for the second baking machine 180 through the third plate placing machine (not shown), so that the second baking machine 180 is in a working state all the time, the second baking machine 180 is prevented from being in an idle state due to maintenance of the second screen printer 170, the energy source of the PCB character screen printing production system 100 is utilized to the maximum, and energy consumption in the PCB character screen printing production process is greatly reduced. It should be noted that the PCB after surface treatment refers to a PCB after surface treatment process, wherein the surface treatment process may be a printing process or a silk-screen printing process, and when the surface treatment process is the printing process, characters, serial numbers, two-dimensional codes, blue gel or carbon oil may be printed on the PCB. When the surface treatment process is a silk-screen process, the PCB is processed by another silk-screen machine.
In one embodiment, the PCB character screen printing production system 100 further includes a first board receiving machine 190. The input end of the first board collecting machine 190 is connected with the output end of the second baking machine 180, and the first board collecting machine 190 is used for collecting the PCBs output by the second baking machine 180. Thus, the baked PCBs are effectively collected by the first board collecting machine 190. It should be noted that the first board collecting machine 190 is mainly used for collecting PCBs with characters silk-screened on two side surfaces.
In one embodiment, the PCB character screen printing production system 100 further includes a second board receiving machine 191. The input end of the second board collecting machine 191 is connected with the output end of the first baking machine 140, and the second board collecting machine 191 is used for collecting the PCBs output by the first baking machine 140. Therefore, when the PCBs output by the first baking machine 140 only need to be silk-screened with single-sided characters or the PCBs output by the first baking machine 140 are surface-treated PCBs, the PCBs are directly conveyed to the second board collecting machine 191 for collection.
In one embodiment, more than two heating zones are spaced apart from each other in the first roaster 140, and the more than two heating zones are disposed along the length direction of the first roaster 140. Since the first roaster 140 is provided with more than two temperature-increasing regions along the length direction of the first roaster 140, when the temperature values of the more than two temperature-increasing regions increase in a step-like manner, the PCB is roasted in the first roaster 140 in a step-like manner. Therefore, the quality problems of oil bleeding on the bonding pad and oil dropping of the thick copper plate are effectively solved. In order to facilitate understanding of the length direction of the first roasting machine 140, taking fig. 1 as an example, the length direction of the first roasting machine 140 is the direction indicated by S in fig. 1.
Further, there are four heating zones, which are divided into a first heating zone 141, a second heating zone 142, a third heating zone 143, and a fourth heating zone 144. The first heating zone 141, the second heating zone 142, the third heating zone 143, and the fourth heating zone 144 are sequentially disposed at intervals along the length direction of the first roaster 140. Thus, the quality of the character screen printing of the PCB is greatly ensured through the first heating zone 141, the second heating zone 142, the third heating zone 143 and the fourth heating zone 144. Specifically, in the present embodiment, the length of the first heating zone 141 is 5 m; the length of the second heating zone 142 is 3 m; the length of the third heating zone 143 is 3 m; the length of the fourth heating zone 144 is 9 m.
Optionally, the temperature of the first heating zone 141 is 70 ℃ to 80 ℃, the temperature of the second heating zone 142 is 90 ℃ to 100 ℃, the temperature of the third heating zone 143 is 105 ℃ to 115 ℃, and the temperature of the fourth heating zone 144 is 150 ℃ to 160 ℃. Specifically, in the present embodiment, according to the characteristics of the ink on the PCB, the temperature value of the first heating zone 141 is set to 75 ℃, the temperature value of the second heating zone 142 is set to 95 ℃, the temperature value of the third heating zone 143 is set to 110 ℃, and the temperature value of the fourth heating zone 144 is set to 155 ℃.
In one embodiment, referring to fig. 1 and 2, a method for producing a PCB character screen printing includes the following steps:
s10, performing silk-screen printing on the PCB to be subjected to silk-screen printing through the first silk-screen printing machine 120, and outputting the PCB subjected to silk-screen printing to the first baking machine 140;
s20, baking the PCB subjected to silk-screen printing through the first baking machine 140;
s30, when the first screen printer 120 is maintained, the second trigger 130 provides the surface-treated PCB to the first baking machine 140 for baking.
In the PCB character silk-screen production method, the PCB to be silk-screen is subjected to silk-screen processing by the first silk-screen machine 120; the printed PCB is baked by the first baking machine 140, so that the characters on the PCB are more stable. When the first screen printer 120 is maintained, the second trigger 130 is started, and the surface-treated PCB is continuously provided to the first baking machine 140 through the second trigger 130, so that the first baking machine 140 is always in a working state, and the first baking machine 140 is prevented from being in an idle state due to the maintenance of the first screen printer 120, so that the energy of the PCB character screen printing production system 100 is maximally utilized, and the energy consumption in the PCB character screen printing production process is greatly reduced. Meanwhile, in the embodiment, the second plate placing machine 130 is used to keep the PCB character screen printing production system 100 in a continuous production state all the time, so that the throughput of the PCB character screen printing production system 100 is increased, and the yield of the PCB character screen printing production system 100 is increased. Specifically, in the present embodiment, the processing speed of the first screen printer 120 is 8pnl/min, wherein pnl is short for panel, the first oven 140 is a two-line suspended oven, and the first oven 140 processes or outputs 1pnl PCBs every 13.5S.
Further, referring to fig. 1 and 3, the step of baking S20 the PCB after silk-screen printing includes: setting more than two heating areas for the first roasting machine 140, and controlling the heating areas to be heated to a preset temperature value S21; and (5) baking the PCB subjected to silk-screen printing sequentially through more than two heating areas S22. Therefore, when the temperature values of two or more heating areas increase in a step-like manner, the PCB is baked in the first baking machine 140 in a step-like manner. Therefore, the quality problems of oil bleeding on the bonding pad and oil dropping of the thick copper plate are effectively solved. Specifically, in this embodiment, the number of the heating zones is four, and the temperature values of the four heating zones are 70-80 ℃, 90-100 ℃, 105-115 ℃ and 150-160 ℃ in sequence. Meanwhile, the lengths of the four heating areas are 5m, 3m and 9m in sequence.
In one embodiment, referring to fig. 1 and fig. 4, the steps further include: turning over the baked PCB S40; silk-screen printing is carried out on the overturned PCB through a second silk-screen machine 170, and the silk-screen PCBS50 is output to a second baking machine 180; the screen-printed PCB is baked S60 by the second bake machine 180. Therefore, the second side face of the PCB is effectively subjected to silk-screen printing operation. Of course, if the PCB only needs single-side silk-screen printing, the PCB is directly output and collected.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a PCB character silk screen printing production system which characterized in that includes:
the first plate placing machine is used for providing a PCB to be subjected to silk-screen printing;
the first screen printing machine is used for receiving the PCB provided by the first plate placing machine and carrying out screen printing on the PCB;
the second plate placing machine is used for providing the PCB with the processed surface; and
the output end of the first screen printing machine and the output end of the second board placing machine are respectively connected with the input end of the first baking machine, and the first baking machine is used for baking the PCB output by the first screen printing machine and the PCB provided by the second board placing machine.
2. The PCB character screen printing production system of claim 1, further comprising a panel turnover machine and a second screen printing machine, wherein an input end of the panel turnover machine is connected with an output end of the first baking machine, the panel turnover machine is used for overturning the PCB output by the first baking machine, and the second screen printing machine is used for receiving the PCB output by the panel turnover machine and performing screen printing on the PCB.
3. The PCB character screen printing production system of claim 2, further comprising a conveying assembly, wherein an input end of the panel turnover machine is connected with an output end of the first baking machine through the conveying assembly.
4. The PCB character screen printing production system of claim 3, wherein the conveying assembly comprises a first steering machine and a second steering machine, and the first steering machine and the second steering machine are respectively used for steering and conveying the PCB at preset angles.
5. The PCB character screen printing production system of claim 2, further comprising a second baking machine, wherein an input end of the second baking machine is connected with an output end of the second screen printing machine, and the second baking machine is used for baking the PCB output by the second screen printing machine.
6. The PCB character screen printing production system of claim 5, further comprising a third plate placing machine, wherein the third plate placing machine is used for providing the surface-treated PCB, and an output end of the third plate placing machine is also connected with an input end of the second baking machine.
7. The PCB character screen printing production system of claim 5, further comprising a first board collecting machine, wherein an input end of the first board collecting machine is connected with an output end of the second baking machine, and the first board collecting machine is used for collecting PCBs output by the second baking machine.
8. The PCB character screen printing production system of any one of claims 1 to 7, further comprising a second board collecting machine, wherein an input end of the second board collecting machine is connected with an output end of the first baking machine, and the second board collecting machine is used for collecting the PCB output by the first baking machine.
9. The PCB character screen printing production system of any one of claims 1 to 7, wherein more than two heating areas are arranged at intervals in the first baking machine, and the more than two heating areas are arranged along the length direction of the first baking machine.
10. The PCB character screen printing production system of claim 9, wherein the number of the heating zones is four, the four heating zones are divided into a first heating zone, a second heating zone, a third heating zone and a fourth heating zone, and the first heating zone, the second heating zone, the third heating zone and the fourth heating zone are sequentially arranged along the length direction of the first baking machine at intervals.
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| CN201920894062.XU CN210821349U (en) | 2019-06-14 | 2019-06-14 | PCB character silk screen printing production system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110239206A (en) * | 2019-06-14 | 2019-09-17 | 广州兴森快捷电路科技有限公司 | PCB character silk-screen production system and method |
| CN113370687A (en) * | 2021-06-26 | 2021-09-10 | 奥士康精密电路（惠州）有限公司 | Method for realizing PCB anti-mixing based on two-dimensional code |
-
2019
- 2019-06-14 CN CN201920894062.XU patent/CN210821349U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110239206A (en) * | 2019-06-14 | 2019-09-17 | 广州兴森快捷电路科技有限公司 | PCB character silk-screen production system and method |
| CN113370687A (en) * | 2021-06-26 | 2021-09-10 | 奥士康精密电路（惠州）有限公司 | Method for realizing PCB anti-mixing based on two-dimensional code |
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