CN109016871B - Method, system and equipment for automatically printing PCB (printed Circuit Board) - Google Patents
Method, system and equipment for automatically printing PCB (printed Circuit Board) Download PDFInfo
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- CN109016871B CN109016871B CN201810900998.9A CN201810900998A CN109016871B CN 109016871 B CN109016871 B CN 109016871B CN 201810900998 A CN201810900998 A CN 201810900998A CN 109016871 B CN109016871 B CN 109016871B
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- pcb
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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
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special 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
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
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- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The invention is suitable for the technical field of printing, and provides a method for automatically printing a PCB, which comprises the following steps: receiving a PLC control signal, and transmitting the PCB to a processing device through a feeding and transmitting device; the PLC control signal carries a host service request; positioning and calibrating the PCB on the processing device according to the host service request to obtain calibration information of the PCB; comparing the calibration information with pre-stored PCB information to obtain a comparison result; printing the PCB through a printing device according to the comparison result; and conveying the printed PCB to a discharging conveying device through a processing device. According to the invention, in the whole process of printing the relevant information on the PCB, the automation of feeding, printing and discharging of the PCB can be realized without manually placing and taking the PCB by an operator, and the working efficiency is effectively improved.
Description
Technical Field
The invention belongs to the technical field of printing, and particularly relates to a method, a system and equipment for automatically printing a PCB (printed circuit board).
Background
At present, a Printed Circuit Board (PCB) is widely used in the electronic industry as a provider of electrical connection of electronic components. In order to indicate the type, manufacturer, etc. of the PCB, it is usually necessary to print corresponding characters, numbers, patterns, etc. on the PCB.
In the prior art, a printing device is generally adopted to print relevant information of a PCB on the PCB, and firstly, an operator places the PCB which is not printed with the relevant information on a printing platform; secondly, calling printing information and calibrating the PCB through an internal system of the printing equipment; then, printing is performed by a printing apparatus; and finally, after printing is finished, taking out the PCB printed with the related information by an operator and placing the PCB at a corresponding position.
However, in the above solution, since the operator is required to repeatedly manually place and take out the PCB board, the workload of the operator is large, and the work efficiency is low.
Disclosure of Invention
The embodiment of the invention provides a method for automatically printing a PCB (printed circuit board), aiming at solving the problems of large workload of operators and low working efficiency caused by the fact that the operators need to repeatedly manually place and take out the PCB in the prior art.
The embodiment of the invention is realized in such a way that a method for automatically printing a PCB comprises the following steps:
receiving a PLC control signal, and transmitting the PCB to a processing device through a feeding and transmitting device; the PLC control signal carries a host service request;
positioning and calibrating the PCB on the processing device according to the host service request to obtain calibration information of the PCB;
comparing the calibration information with pre-stored PCB information to obtain a comparison result;
printing the PCB through a printing device according to the comparison result;
and conveying the printed PCB to a discharging conveying device through the processing device.
The embodiment of the invention also provides a system for automatically printing the PCB, which comprises: the first PCB board transmission unit is used for receiving the PLC control signal and transmitting the PCB board to the processing device through the feeding transmission device; the PLC control signal carries a host service request;
the PCB positioning and calibrating unit is used for positioning and calibrating the PCB on the processing device according to the host service request to obtain calibration information of the PCB;
the PCB information comparison unit is used for comparing the calibration information with pre-stored PCB information to obtain a comparison result;
the PCB printing unit is used for printing the PCB through a printing device according to the comparison result;
and the second PCB board conveying unit is used for conveying the printed PCB board to the discharging conveying device through the processing device.
The embodiment of the invention also provides equipment for automatically printing the PCB, which comprises the system for automatically printing the PCB.
The method for automatically printing the PCB provided by the embodiment of the invention comprises the following steps of firstly, receiving a PLC control signal carrying a host service request, and transmitting the PCB to a processing device through a feeding and transmitting device; secondly, positioning and calibrating the PCB on the processing device according to the host service request to obtain calibration information of the PCB; thirdly, comparing the calibration information with pre-stored PCB information to obtain a comparison result; then, printing the PCB through a printing device according to the comparison result; and finally, conveying the printed PCB to a discharging conveying device through the processing device. According to the invention, in the whole process of printing the relevant information on the PCB, the automation and the intellectualization of the printing of the relevant information on the PCB can be realized without manually placing and taking the PCB by an operator, so that the working efficiency is effectively improved, and the labor cost is reduced.
Drawings
FIG. 1 is a schematic flow chart of a method for automatically printing a PCB in an embodiment of the invention;
FIG. 2 is a flow chart illustrating step S11 according to an embodiment of the present invention;
fig. 3 is another schematic flow chart of step S11 in the embodiment of the present invention;
FIG. 4 is a schematic flow chart of step S111 in the embodiment of the present invention;
FIG. 5 is a flowchart illustrating step S12 according to an embodiment of the present invention;
FIG. 6 is a schematic flow chart illustrating another method for automatically printing PCB in an embodiment of the present invention;
FIG. 7 is a block diagram of a system for automated printing of PCB boards in an embodiment of the present invention;
fig. 8 is a block diagram of a first PCB transferring unit in the embodiment of the present invention;
fig. 9 is another block diagram of the first PCB transferring unit in the embodiment of the present invention;
fig. 10 is a block diagram of a first PCB board transfer module in an embodiment of the invention;
FIG. 11 is a block diagram of a PCB positioning calibration unit in an embodiment of the present invention;
fig. 12 is a block diagram of another automatic PCB printing system in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The method for automatically printing the PCB provided by the embodiment of the invention comprises the following steps of firstly, receiving a PLC control signal carrying a host service request, and transmitting the PCB to a processing device through a feeding and transmitting device; secondly, positioning and calibrating the PCB on the processing device according to the host service request to obtain calibration information of the PCB; thirdly, comparing the calibration information with pre-stored PCB information to obtain a comparison result; then, printing the PCB through a printing device according to the comparison result; and finally, conveying the printed PCB to a discharging conveying device through the processing device. According to the invention, in the whole process of printing the relevant information on the PCB, the automation and the intellectualization of the printing of the relevant information on the PCB can be realized without manually placing and taking the PCB by an operator, so that the working efficiency is effectively improved, and the labor cost is reduced.
Referring to fig. 1, a flow chart of a method for automatically printing a PCB according to an embodiment of the present invention is shown, and for convenience of description, only parts related to the embodiment of the present invention are shown, including:
s11, receiving a PLC control signal, and transmitting the PCB to a processing device through a feeding and transmitting device; the PLC control signal carries a host service request;
in the embodiment of the invention, the PLC control signal is used for coordinating various actions and flow control in the printing process and printing the images on the preset position at high speed accurately according to the original data images on the PCB; meanwhile, the ink path can be controlled and coordinated to automatically ink, UV (Ultraviolet) drying, height detection and other functions are cooperatively controlled, and printing equipment is controlled to accurately print.
S12, positioning and calibrating the PCB on the processing device according to the host service request, and acquiring calibration information of the PCB;
s13, comparing the calibration information with pre-stored PCB information to obtain a comparison result;
s14, printing the PCB board through a printing device according to the comparison result;
and S15, conveying the printed PCB to a discharge conveying device through the processing device.
According to the invention, in the whole process of printing the relevant information on the PCB, the automation and the intellectualization of the printing of the relevant information on the PCB can be realized without manually placing and taking the PCB by an operator, and the working efficiency is effectively improved.
Fig. 2 is a schematic flow chart of step S11 in the embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown, where the step S11 includes:
s111, conveying the PCB to a position to be processed of a printer by a feeding conveying device;
and S112, the processing device transmits the PCB at the position to be processed to the position to be printed of the printer. The PCB is transmitted from the feeding and conveying device to the processing device through the two steps, so that the PCB to be processed can be fixed at the position to be processed and conveyed to the processing device.
Fig. 3 shows another schematic flow chart of step S11 in the embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown, and after step S111, the method further includes:
s113, the PCB is clapped through a clapper mechanism on the feeding and conveying device.
In the embodiment of the invention, the clapper mechanism is used for clapping the PCB on the feeding and conveying device according to a clapper instruction of the PLC control signal so as to correct the position of the PCB and improve the positioning accuracy of the PCB.
Fig. 4 shows a schematic flowchart of step S111 in the embodiment of the present invention, and for convenience of description, only the part related to the embodiment of the present invention is shown, including:
s1111, conveying the PCB at the position to be processed to a preset position of the processing device through a lifting conveying mechanism on the processing device;
and S1112, lowering the height of the lifting and conveying mechanism to fix the PCB on the preset position of the processing device.
In the embodiment of the invention, after the height of the conveying mechanism is reduced to enable the PCB to fall on the preset position of the processing device, the PCB is clamped and fixed by the fixing mechanism on the processing device, so that the structural stability of the PCB in the printing process is improved, and the printing quality is improved.
Fig. 5 shows a flowchart of step S12 in the embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown. The method specifically comprises the following steps:
s121, collecting target information of the PCB through a visual positioning device;
s122, judging whether the target information is consistent with preset target information or not; when the judgment result is yes, step S123 is executed; when the judgment result is no, step S124 is executed;
and S123, when the judgment results are consistent, collecting the target information on the PCB.
In the implementation of the present invention, the visual positioning device may be a high-precision CCD (charged coupled device camera), and the number of the CCDs may be 4, so as to correspondingly acquire 4 target information on the PCB, of course, it can be understood that the number of the target information may also be 5, 6, 8, and the like, and a corresponding number of CDD cameras are correspondingly arranged, so as to achieve high-precision acquisition of the target information, thereby ensuring that each PCB can be accurately printed to a corresponding position.
Fig. 6 is a schematic flow chart of another automatic PCB printing method in an embodiment of the present invention, which is different from the schematic flow chart of the automatic PCB printing method shown in fig. 1 in that the method further includes: before the step S14, the method further includes:
s21, detecting whether foreign matters exist on the PCB board through a detection module on the printing device; when the judgment result is yes, step S14 is executed; when the determination result is no, step S22 is executed.
In the embodiment of the invention, if the detection module detects that foreign matters exist on the PCB, alarm information is sent out to prompt, wherein the alarm information can be sound information, such as a loudspeaker alarm, or light alarm, such as an LED lamp flashing alarm, and the details are not limited.
In an actual application of the invention, the automatic printing work flow of the PCB is as follows:
1. and starting a pipeline printing line of the PCB to enter a printing mode. The PCB is conveyed to a processing device through a feeding conveying device by a PLC control assembly line, and is conveyed to a preset position of the processing device through a lifting conveying mechanism on the processing device, and the height of the lifting conveying mechanism is reduced so that the PCB is fixed to the preset position of the processing device.
2. And the PLC sends a signal to the control software to indicate that the PCB is fixed on a preset position, and the system triggers the CDD camera to capture 4 target position information to calculate the deviation between the actual target position and the data position and calculate software expansion and contraction data and an initial printing position to generate a printing picture.
3. The printing device controls the accurate printing of a nozzle on the printing device and turns on a UV lamp to cure ink in real time after the printing is started so as to prevent the ink from diffusing and influencing the accuracy.
4. After printing is finished, the system software informs the assembly line to open the clamp and move the lower plate in a communication mode.
The method for automatically printing the PCB provided by the embodiment of the invention comprises the following steps of firstly, receiving a PLC control signal carrying a host service request, and transmitting the PCB to a processing device through a feeding and transmitting device; secondly, positioning and calibrating the PCB on the processing device according to the host service request to obtain calibration information of the PCB; thirdly, comparing the calibration information with pre-stored PCB information to obtain a comparison result; then, printing the PCB through a printing device according to the comparison result; and finally, conveying the printed PCB to a discharging conveying device through the processing device. According to the invention, in the whole process of printing the relevant information on the PCB, the automation and the intellectualization of the printing of the relevant information on the PCB can be realized without manually placing and taking the PCB by an operator, and the working efficiency is effectively improved.
Fig. 7 illustrates a system 100 for automatic printing of a PCB in an embodiment of the present invention, and for convenience of explanation, only the parts related to the present invention are illustrated, and the system 100 for automatic printing of a PCB includes:
the first PCB board transmission unit 11 is used for receiving a PLC control signal and transmitting the PCB board to the processing device through the feeding transmission device; the PLC control signal carries a host service request;
in the embodiment of the invention, the PLC control signal is used for coordinating various actions and flow control in the printing process and printing the images on the preset position at high speed accurately according to the original data images on the PCB; meanwhile, the ink path can be controlled and coordinated to automatically ink, UV (Ultraviolet) drying, height detection and other functions are cooperatively controlled, and printing equipment is controlled to accurately print.
A PCB positioning and calibrating unit 12, configured to perform positioning and calibrating on the PCB on the processing apparatus according to the host service request, so as to obtain calibration information of the PCB;
the PCB information comparison unit 13 is used for comparing the calibration information with pre-stored PCB information to obtain a comparison result;
the PCB printing unit 14 is used for printing the PCB through a printing device according to the comparison result;
and the second PCB board conveying unit 15 is used for conveying the printed PCB board to the discharging conveying device through the processing device.
According to the invention, in the whole process of printing the relevant information on the PCB, the automation and the intellectualization of the printing of the relevant information on the PCB can be realized without manually placing and taking the PCB by an operator, and the working efficiency is effectively improved.
Fig. 8 is a block diagram of the first PCB transfer unit 11 in the embodiment of the present invention, which shows only the portions related to the present invention for convenience of explanation, the first PCB transfer unit 11 including:
the first PCB board conveying module 111 is used for conveying the PCB board to a position to be processed of the printer by the feeding conveying device;
and a second PCB transferring module 112, configured to transfer the PCB at the to-be-processed position to the to-be-printed position of the printer by a processing device. The PCB is transmitted from the feeding and conveying device to the processing device through the two units, so that the PCB to be processed can be fixed at the position to be processed and conveyed to the processing device.
Fig. 9 is another block diagram of the first PCB transferring unit 11 in the embodiment of the present invention, which shows only the portions related to the present invention for convenience of explanation, and the system for automatic printing of PCBs further includes:
and the PCB clapper module 113 is used for clapping the PCB by a clapper mechanism on the feeding and conveying device.
In the embodiment of the invention, the clapper mechanism is used for clapping the PCB on the feeding and conveying device according to a clapper instruction of the PLC control signal so as to correct the position of the PCB and improve the positioning accuracy of the PCB.
Fig. 10 is a block diagram of a first PCB board transfer module 111 in an embodiment of the present invention, and for convenience of explanation, only the parts related to the present invention are shown, where the first PCB board transfer module 111 specifically includes:
the first PCB board conveying sub-module 1111 is configured to convey the PCB board at the to-be-processed position to a predetermined position of the processing device through a lifting and lowering conveying mechanism on the processing device;
a first PCB fixing sub-module 1112, configured to lower the height of the lifting and lowering mechanism so as to fix the PCB on a predetermined position of the processing device.
In the embodiment of the invention, after the height of the conveying mechanism is reduced to enable the PCB to fall on the preset position of the processing device, the PCB is clamped and fixed by the fixing mechanism on the processing device, so that the structural stability of the PCB in the printing process is improved, and the printing quality is improved.
In an embodiment of the present invention, the first PCB transferring module 111 further includes: and the second PCB fixing sub-module 1113 is used for clamping and fixing the PCB by a fixing mechanism on the processing device.
Fig. 11 is a block diagram of the PCB positioning calibration unit 12 in the embodiment of the present invention, which only shows the parts related to the present invention for convenience of explanation, and the PCB positioning calibration unit 12 specifically includes:
the first information acquisition module 121 is configured to acquire target information of the PCB through a visual positioning device;
a judging module 122, configured to judge whether the target information is consistent with preset target information;
and the second information acquisition module 123 is configured to acquire the target information on the PCB when the determination result is consistent.
In the implementation of the present invention, the visual positioning device may be a high-precision CCD (charged coupled device camera), and the number of the CCDs may be 4, so as to correspondingly acquire 4 target information on the PCB, of course, it can be understood that the number of the target information may also be 5, 6, 8, and the like, and a corresponding number of CDD cameras are correspondingly arranged, so as to achieve high-precision acquisition of the target information, thereby ensuring that each PCB can be accurately printed to a corresponding position.
Fig. 12 is a block diagram of another PCB board automatic printing system 200 according to an embodiment of the present invention, where the PCB board automatic printing system 200 further includes:
and the detection unit 21 is used for detecting whether foreign matters exist on the PCB or not through a detection module on the printing device.
In the embodiment of the invention, if the detection module detects that foreign matters exist on the PCB, alarm information is sent out to prompt, wherein the alarm information can be sound information, such as a loudspeaker alarm, or light alarm, such as an LED lamp flashing alarm, and the details are not limited.
The embodiment of the invention also provides equipment for automatically printing the PCB, which comprises the system for automatically printing the PCB.
According to the system and the equipment for automatically printing the PCB, provided by the embodiment of the invention, the PCB is transmitted to the processing device through the feeding and transmitting device by receiving the PLC control signal carrying the host service request; positioning and calibrating the PCB on the processing device according to the host service request to obtain calibration information of the PCB; comparing the calibration information with pre-stored PCB information to obtain a comparison result; printing the PCB through a printing device according to the comparison result; and conveying the printed PCB to a discharging conveying device through the processing device. According to the invention, in the whole process of printing the relevant information on the PCB, the automation and the intellectualization of the printing of the relevant information on the PCB can be realized without manually placing and taking the PCB by an operator, and the working efficiency is effectively improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A method for automatically printing a PCB is characterized by comprising the following steps:
receiving a PLC control signal, and transmitting the PCB to a processing device through a feeding and transmitting device; the PLC control signal carries the host computer service request, convey the PCB board to the processingequipment through the feeding conveyer and include:
the feeding and conveying device conveys the PCB to a station to be processed of the printer;
the processing device conveys the PCB of the station to be processed to a position to be printed of the printer;
after the feeding and conveying device conveys the PCB to the position to be processed of the printer, the PCB is photographed by a plate-photographing mechanism of the feeding and conveying device so as to correct the position of the PCB;
positioning and calibrating the PCB on the processing device according to the host service request to obtain calibration information of the PCB; comparing the calibration information with pre-stored PCB information to obtain a comparison result; the method specifically comprises the following steps:
target information of the PCB is collected through a visual positioning device;
judging whether the target information is consistent with preset target information or not;
when the judgment results are consistent, printing the PCB through a printing device according to the comparison results;
and conveying the printed PCB to a discharging conveying device through the processing device.
2. The method for automatically printing the PCB according to claim 1, wherein the processing device transfers the PCB at the position to be processed to the position to be printed of the printer, and specifically comprises:
conveying the PCB at the position to be processed to a preset position of the processing device through a lifting conveying mechanism on the processing device;
and the lifting and conveying mechanism lowers the height so that the PCB is fixed on a preset position of the processing device.
3. The method for automatically printing the PCB of claim 2, wherein after the elevating and conveying mechanism lowers the height to fix the PCB at the predetermined position of the processing device, the method further comprises clamping and fixing the PCB by a fixing mechanism on the processing device.
4. The method for automatically printing the PCB as recited in claim 1, wherein the target information on the PCB is collected when the judgment result is consistent.
5. The method for automatically printing the PCB according to claim 1, wherein before the PCB is printed by a printing device according to the comparison result, the method further comprises:
and detecting whether foreign matters exist on the PCB or not through a detection module on the printing device.
6. A system for automatically printing a PCB, comprising:
the first PCB board transmission unit is used for receiving the PLC control signal and transmitting the PCB board to the processing device through the feeding transmission device; the PLC control signal carries a host service request;
the PCB positioning and calibrating unit is used for positioning and calibrating the PCB on the processing device according to the host service request to obtain calibration information of the PCB;
the PCB information comparison unit is used for comparing the calibration information with pre-stored PCB information to obtain a comparison result;
the PCB printing unit is used for printing the PCB through a printing device according to the comparison result;
and the second PCB board conveying unit is used for conveying the printed PCB board to the discharging conveying device through the processing device.
7. The system for automatic printing of PCB boards according to claim 6, wherein the first PCB board transferring unit comprises:
the first PCB board conveying module is used for conveying the PCB board to a position to be processed of the printer by the feeding conveying device;
and the second PCB board conveying module is used for conveying the PCB board at the position to be processed to the position to be printed of the printer by the processing device.
8. An apparatus for automatically printing a PCB, comprising the system for automatically printing a PCB according to any one of claims 6 to 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810900998.9A CN109016871B (en) | 2018-08-09 | 2018-08-09 | Method, system and equipment for automatically printing PCB (printed Circuit Board) |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810900998.9A CN109016871B (en) | 2018-08-09 | 2018-08-09 | Method, system and equipment for automatically printing PCB (printed Circuit Board) |
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| CN109016871A CN109016871A (en) | 2018-12-18 |
| CN109016871B true CN109016871B (en) | 2020-12-22 |
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| CN201810900998.9A Active CN109016871B (en) | 2018-08-09 | 2018-08-09 | Method, system and equipment for automatically printing PCB (printed Circuit Board) |
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| CN110370803A (en) * | 2019-07-31 | 2019-10-25 | 江苏汉印机电科技股份有限公司 | A kind of pcb board jet printer and pcb board spray printing production line |
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| JP2004273774A (en) * | 2003-03-10 | 2004-09-30 | Yokogawa Electric Corp | Printing device for substrate |
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2018
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| JP2004273774A (en) * | 2003-03-10 | 2004-09-30 | Yokogawa Electric Corp | Printing device for substrate |
| CN103862892A (en) * | 2014-03-13 | 2014-06-18 | 重庆市微云科技发展有限公司 | Method and system for automatic aligning of PCB (printed circuit board) character ink printer |
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| CN106671613A (en) * | 2017-02-22 | 2017-05-17 | 禹涛林 | Full-automatic online PCB jet printing system and method |
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