Print method of circuit board printer, circuit board printer, controller, and medium

Abstract

The application discloses a printing method of a circuit board printer, the circuit board printer, a controller and medium, and relates to the technical field of circuit board printing. The method comprises the following steps: placing a circuit board on a first bearing table; printing a first surface of the circuit board row by row through a first spraying mechanism, and solidifying the printed ink on the first surface of the circuit board row by row through a first solidifying mechanism; when the circuit board is of a first type, conveying the circuit board of the first type to a turnover mechanism through a classified conveying mechanism; turning over the circuit board of the first type through the turnover mechanism, and conveying the turned-over circuit board to a second bearing table; printing a second surface of the circuit board row by row through a second spraying mechanism, and solidifying the printed ink on the second surface of the circuit board row by row through a second solidifying mechanism; and cleaning the nozzle of the first spraying mechanism or the second spraying mechanism through a cleaning mechanism. The method can improve the printing efficiency and the printing effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit board printing, in particular to a printing method of a circuit board printer, a circuit board printer, a controller and a medium. BACKGROUND

[0002] In the manufacturing process of the circuit board, the printing technology is a key link, which is generally used for spraying characters, numbers and the like on the circuit board to meet the product traceability and process requirements. After the circuit board is printed, the ink on the surface of the circuit board cannot be quickly air-dried, and the pattern formed by the ink is easy to be damaged. At the same time, the traditional circuit board printer only prints one side of the circuit board. When it is necessary to print both sides of the circuit board, the operator needs to place the circuit board on the machine table after turning over, which is a relatively cumbersome operation process and has a low printing efficiency. In addition, the inkjet head of the printer will be blocked after multiple printing, which will cause the inkjet head to fail to print normally. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a printing method of a circuit board printer, a circuit board printer, a controller and a medium, which can improve the printing efficiency and printing effect.

[0004] In a first aspect, the printing method of the circuit board printer according to the embodiments of the present application is applied to a circuit board printer, the circuit board printer comprising a machine table, a first conveying mechanism and a second conveying mechanism arranged on the surface of the machine table, a classification conveying mechanism and a turnover mechanism, a first spraying mechanism and a first curing mechanism arranged above the first conveying mechanism, and a second spraying mechanism and a second curing mechanism arranged above the second conveying mechanism, a first bearing table arranged on the first conveying mechanism, a second bearing table arranged on the second conveying mechanism, and a cleaning mechanism rotatable arranged on one side of the first conveying mechanism and the second conveying mechanism, the printing method of the circuit board printer comprising the following steps:

[0005] placing a circuit board on the first bearing table;

[0006] moving the circuit board by the first conveying mechanism, in the moving process, printing the first surface of the circuit board row by row by the first spraying mechanism, and curing the printed ink on the first surface of the circuit board row by row by the first curing mechanism;

[0007] after the first surface of the circuit board is completed printing and curing, receiving the circuit board by the classification conveying mechanism;

[0008] When the circuit board is of a first type, the first type indicating that a second surface of the circuit board needs to be printed, the first type of the circuit board is conveyed to the turnover mechanism by the classification conveying mechanism;

[0009] The first type of the circuit board is turned over by the turnover mechanism, and the turned-over circuit board is conveyed to the second bearing table;

[0010] The circuit board is moved by the second conveying mechanism, and in the moving process, the second surface of the circuit board is printed line by line by the second spraying mechanism, and the printed ink on the second surface of the circuit board is solidified line by line by the second solidifying mechanism;

[0011] The nozzles of the first spraying mechanism or the second spraying mechanism are cleaned by the cleaning mechanism.

[0012] According to some embodiments of the present application, the first spraying mechanism has a plurality of first nozzles arranged side by side, and the second spraying mechanism has a plurality of second nozzles arranged side by side, each of the first nozzles and each of the second nozzles being in communication with an ink cartridge, and the circuit board printer further comprises a controller electrically connected to the first conveying mechanism, the second conveying mechanism, the classification conveying mechanism, the turnover mechanism, the first spraying mechanism, the first solidifying mechanism, the second spraying mechanism, the second solidifying mechanism, and the cleaning mechanism, the controller storing a printing list, the printing list having a plurality of printing schemes corresponding to different printing patterns, each of the printing schemes determining the ink ejection amount of each of the first nozzles or each of the second nozzles at different positions; each of the circuit boards is provided with an identification code, the identification code being used to record the printing pattern of the circuit board, and the top of the machine is provided with an identification device for identifying the identification code;

[0013] The circuit board is moved by the first conveying mechanism, and in the moving process, the first surface of the circuit board is printed line by line by the first spraying mechanism, and the printed ink on the first surface of the circuit board is solidified line by line by the first solidifying mechanism, comprising:

[0014] The identification code is identified by the identification device to determine the printing pattern of the circuit board on the first bearing table;

[0015] The ink ejection amount of each of the first nozzles at each position is determined according to the printing pattern of the circuit board on the first bearing table and the printing list;

[0016] The first transfer mechanism drives the circuit board to move, and during the movement, a corresponding driving voltage is applied to each of the first nozzles, so that each of the first nozzles sprays a corresponding amount of ink at each position, and the first surface of the circuit board is printed row by row.

[0017] The first curing mechanism cures the printed ink on the first surface of the circuit board row by row.

[0018] According to some embodiments of the present application, the first spraying mechanism has a plurality of first nozzles arranged side by side, the second spraying mechanism has a plurality of second nozzles arranged side by side, and the cleaning mechanism is provided with an ultrasonic cleaning tank, and in the initial state, the extension direction of the ultrasonic cleaning tank is parallel to the extension direction of the first transfer mechanism or the second transfer mechanism.

[0019] Before the step of placing the circuit board on the first supporting table, the printing method of the circuit board printer further comprises:

[0020] Placing a test board on the first supporting table and / or the second supporting table.

[0021] Printing a test pattern on the surface of the test board by the first spraying mechanism and / or the second spraying mechanism to obtain an actual pattern.

[0022] When the test pattern does not match the actual pattern, rotating the ultrasonic cleaning tank by 90° to be consistent with the arrangement direction of the plurality of first nozzles and / or the plurality of second nozzles.

[0023] Lowering the first spraying mechanism and / or the second spraying mechanism so that the plurality of first nozzles and / or the plurality of second nozzles enter the ultrasonic cleaning tank.

[0024] Ultrasonic cleaning the plurality of first nozzles and / or the plurality of second nozzles by the ultrasonic cleaning tank.

[0025] According to some embodiments of the present application, the classification transfer mechanism comprises a first grabbing unit, a transfer table and a transfer table, the transfer table comprises a plurality of transfer rollers arranged at intervals, and the transfer table comprises a plurality of liftable transfer rollers arranged at intervals, each of the transfer rollers is located between two adjacent transfer rollers, wherein the transfer direction of the transfer table is the same as the transfer direction of the first transfer mechanism, and the transfer direction of the transfer table is perpendicular to the transfer direction of the transfer table, wherein the first grabbing unit is used to grab the circuit board with the first surface completed printing and curing to the transfer table, and the identification device is also used to determine that the circuit board with the first surface completed printing and curing is of the first type or the second type according to the identification code.

[0026] The first type of circuit board is conveyed to the turnover mechanism by the classification conveying mechanism when the circuit board is of the first type, comprising:

[0027] The circuit board is conveyed to the turnover mechanism by the conveying roller when the circuit board is of the first type.

[0028] The transfer roller is lifted above the conveying roller to hold the circuit board when the circuit board is of the second type.

[0029] The circuit board on the transfer roller is moved towards the direction of the unloading table by the transfer table, and the transfer roller is lowered below the conveying roller, so that the conveying roller conveys the circuit board to the unloading table.

[0030] According to some embodiments of the present application, the turnover mechanism comprises a roller, a plurality of transfer tables arranged in an annular array on the roller, each of the transfer tables comprising a plurality of bearing columns arranged at intervals; the turnover mechanism further comprises a transfer mechanism and a second grabbing unit, and the classification conveying mechanism and the transfer mechanism are located on both sides of the roller.

[0031] The first type of circuit board is turned over by the turnover mechanism, and the turned-over circuit board is conveyed to the second bearing table, comprising:

[0032] After receiving the circuit board conveyed by the classification conveying mechanism through one of the transfer tables, all the transfer tables are driven to rotate by the roller by a first preset angle.

[0033] After the circuit board on one of the transfer tables is turned over, the turned-over circuit board is received by the transfer mechanism.

[0034] The turned-over circuit board is conveyed to the second grabbing unit by the transfer mechanism, and the circuit board on the transfer mechanism is grabbed by the second grabbing unit to the second bearing table.

[0035] According to some embodiments of the present application, after receiving the circuit board conveyed by the classification conveying mechanism through one of the transfer tables, all the transfer tables are driven to rotate by the roller by a first preset angle, comprising:

[0036] When the first spraying mechanism is in a cleaning state, the cleaning time of the first spraying mechanism is obtained.

[0037] acquire a rotation frequency of the roller, and determine an angle difference between a first rotary table and a second rotary table according to the cleaning time, the rotation frequency and the first preset angle, wherein the first rotary table represents the rotary table corresponding to the circuit board printed last before the first spraying mechanism enters the cleaning state, and the second rotary table represents the rotary table corresponding to the circuit board printed first after the first spraying mechanism completes the cleaning state;

[0038] determine a second preset angle according to the angle difference, and control the roller to drive all the rotary tables to rotate the second preset angle according to the rotation frequency after the circuit board printed last before the first spraying mechanism enters the cleaning state is completed to turn over.

[0039] According to some embodiments of the present application, the surface of the first bearing table is provided with a plurality of adjusting grooves, and a liftable positioning member is movably arranged in each adjusting groove.

[0040] After the circuit board is placed on the first bearing table, the printing method of the circuit board printer further comprises:

[0041] The identification device is used to identify the identification code to determine the size information of the circuit board on the first bearing table.

[0042] According to the size information, the position of each positioning member in the corresponding adjusting groove is adjusted so that the positioning member is located above the edge of the circuit board.

[0043] The positioning member after the position adjustment is lowered to the surface of the circuit board to compress the circuit board.

[0044] According to some embodiments of the present application, the first grabbing unit comprises a moving device, a lifting device and a vacuum suction device, the lifting device is arranged on the moving device, the vacuum suction device is arranged on the lifting device, the lifting device is used to drive the vacuum suction device to lift, and the moving device is used to drive the vacuum suction device to move.

[0045] After the first surface of the circuit board is completed to print and solidify, the classification conveying mechanism is used to receive the circuit board, which comprises:

[0046] After the first surface of the circuit board is completed to print and solidify, the lifting device is used to drive the vacuum suction device to lower to the surface of the circuit board.

[0047] After the circuit board is adsorbed by the vacuum suction device, the lifting device is used to drive the vacuum suction device to rise.

[0048] After the vacuum adsorption device is driven to the conveying table by the mobile device, the vacuum adsorption device is driven to descend by the lifting device, and the circuit board is placed on the conveying table.

[0049] In a second aspect, a circuit board printer according to an embodiment of the present application includes a machine table, a first conveying mechanism and a second conveying mechanism arranged on a surface of the machine table, a sorting conveying mechanism and a turnover mechanism, a first spraying mechanism and a first curing mechanism arranged above the first conveying mechanism, and a second spraying mechanism and a second curing mechanism arranged above the second conveying mechanism, a first bearing table is arranged on the first conveying mechanism, a second bearing table is arranged on the second conveying mechanism, and a rotatable cleaning mechanism is arranged on one side of each of the first conveying mechanism and the second conveying mechanism. The circuit board printer is used to implement the printing method of the circuit board printer according to the first aspect.

[0050] In a third aspect, a controller according to an embodiment of the present application includes at least one control processor and a memory in communication connection with the at least one control processor. The memory stores instructions executable by the at least one control processor. The instructions are executed by the at least one control processor to enable the at least one control processor to execute the printing method of the circuit board printer according to the first aspect.

[0051] In a fourth aspect, a computer readable storage medium according to an embodiment of the present application stores computer executable instructions for causing a computer to execute the printing method of the circuit board printer according to the first aspect.

[0052] The printing method of the circuit board printer, the circuit board printer, the controller and the medium according to the embodiments of the present application have at least the following beneficial effects: the cooperation of the first conveying mechanism, the first spraying mechanism and the first curing mechanism can realize the operations of line-by-line printing and line-by-line curing of the circuit board, so that the printing ink is quickly cured; after the printing of one side of the circuit board is completed, the sorting conveying mechanism can sort the circuit board, the circuit board without the other side to be printed is directly conveyed to a discharging position, the circuit board with the other side to be printed is conveyed to the turnover mechanism to be turned over, and the circuit board turned over is conveyed to the second bearing table by the turnover mechanism, so that the cooperation of the second conveying mechanism, the second spraying mechanism and the second curing mechanism can realize the operations of automatic printing and curing of the other side of the circuit board. In addition, the cleaning mechanism can clean the nozzle to prevent the nozzle from being blocked by the printing ink after the printing ink is sprayed out of the nozzle for multiple times, so that the nozzle cannot work normally. The method can improve the printing efficiency and the printing effect.

[0053] Additional aspects and advantages of the present application will be apparent from the following description of the application and as defined in the appended claims. BRIEF DESCRIPTION OF DRAWINGS

[0054] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings.

[0055] Figure 1 Structure diagram of a circuit board printer according to an embodiment of the present application;

[0056] Figure 2 Structure diagram of a circuit board printer according to an embodiment of the present application, with the hidden turnover mechanism;

[0057] Figure 3 Structure diagram of a circuit board printer according to an embodiment of the present application, from another perspective;

[0058] Figure 4 Structure diagram of a circuit board printer according to an embodiment of the present application, with the hidden turnover mechanism; Figure 1 Enlarged structure diagram of part A shown;

[0059] Figure 5 Flow chart of steps of a printing method of a circuit board printer according to an embodiment of the present application;

[0060] Figure 6 Structure diagram of a controller according to an embodiment of the present application. DETAILED DESCRIPTION

[0061] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which like or similar elements are denoted by the same or similar reference signs, and examples of the embodiments are shown. The embodiments described below with reference to the accompanying drawings are exemplary and are for the purpose of explaining the present application only, and should not be understood as limiting the present application. The step numbers in the following embodiments are set only for the purpose of facilitating the description, and the order between the steps is not limited in any way, and the execution order of each step in the embodiments can be adaptively adjusted according to the understanding of those skilled in the art.

[0062] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application.

[0063] The terms "first", "second", "third", and "fourth" and the like in the description and in the claims of the present application and the accompanying drawings are used for distinguishing between similar objects, not necessarily described in a particular order. Also, the terms "comprise", "comprising", "including", and "having" and any variations thereof in the description and in the claims of the present application are intended to cover both the case where the stated feature is included in the process, method, system, product, or apparatus and the case where the stated feature is not included in the process, method, system, product, or apparatus. For example, a process, method, system, product, or apparatus that comprises a list of steps or units is not necessarily limited to the listed steps or units, but can optionally include additional steps or units not listed.

[0064] Reference to "an embodiment" or "the embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" or "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily referring to a single, alternative embodiment. It is explicitly contemplated that embodiments described herein can be combined with each other in their individual aspects.

[0065] In the manufacturing process of the circuit board, the spray printing technology is a key link, which is generally used for spraying characters, numbers and the like on the circuit board to meet the product traceability and process requirements. After the circuit board is sprayed, the ink on the surface of the circuit board cannot be quickly air-dried, and the pattern formed by the ink is easy to be damaged. Meanwhile, the traditional circuit board printer only prints one side of the circuit board, and when it is necessary to print both sides of the circuit board, the operator needs to place the circuit board on the machine table after turning over the circuit board, which is relatively cumbersome and has low printing efficiency. In addition, the nozzle of the printer will be blocked after being used for printing for many times, so that the nozzle cannot normally print.

[0066] Therefore, the embodiment of the present application provides a printing method of a circuit board printer, a circuit board printer, a controller and a medium, which can realize the line-by-line printing and line-by-line curing operation of the circuit board through the cooperation of the first conveying mechanism, the first spraying mechanism and the first curing mechanism, so that the printing ink is quickly cured. After the printing of one side of the circuit board is completed, the circuit board can be classified through the classification conveying mechanism, the circuit board which does not need to print the other side is directly conveyed to the discharging position, and the circuit board which needs to print the other side is conveyed to the turnover mechanism to be turned over, and then the circuit board turned over by the turnover mechanism is conveyed to the second bearing table, and the other side of the circuit board is automatically printed and cured through the cooperation of the second conveying mechanism, the second spraying mechanism and the second curing mechanism. In addition, the nozzle can be cleaned through the cleaning mechanism to prevent the nozzle from being blocked by the ink after the nozzle sprays the ink for many times, so that the nozzle cannot normally work. The method can improve the printing efficiency and printing effect.

[0067] The printing method of the circuit board printer, the circuit board printer, the controller and the medium are described in detail below with reference to the drawings.

[0068] In one aspect, as Figure 1 shown in the drawings, the present embodiment proposes a circuit board printer, which comprises a machine table 100, a first conveying mechanism 200, a second conveying mechanism 300, a sorting conveying mechanism 400 and a turnover mechanism 500 arranged on the surface of the machine table 100, a first spraying mechanism 600 and a first curing mechanism 700 arranged above the first conveying mechanism 200, and a second spraying mechanism 800 and a second curing mechanism 900 arranged above the second conveying mechanism 300, a first bearing table 210 arranged on the first conveying mechanism 200, a second bearing table 310 arranged on the second conveying mechanism 300, and a rotatable cleaning mechanism 1000 arranged on one side of the first conveying mechanism 200 and the second conveying mechanism 300.

[0069] The first conveying mechanism 200 is used to drive the circuit board 1100 placed on the first bearing table 210 to move along the left-right direction, and in the moving process, the first spraying mechanism 600 is used to print the circuit board 1100, and the first curing mechanism 700 is used to cure, so as to complete the printing of one side of the circuit board 1100. Figure 1 After the printing is completed, the sorting conveying mechanism 400 receives the circuit board 1100, when the circuit board 1100 does not need to print the other side, the sorting conveying mechanism 400 directly conveys the circuit board 1100 to the discharging place; when the circuit board 1100 needs to print the other side, the sorting conveying mechanism 400 conveys the circuit board 1100 to the turnover mechanism 500. The turnover mechanism 500 turns over the circuit board 1100 and conveys it to the second bearing table 310 on the second conveying mechanism 300, and the second conveying mechanism 300 is used to drive the circuit board 1100 placed on the second bearing table 310 to move along the left-right direction. Figure 1The left and right direction movement is shown, during the movement, the circuit board 1100 is printed by the second spraying mechanism 800 and cured by the second curing mechanism 900, so as to complete the printing of the other surface of the circuit board 1100. At this time, the double surfaces of the circuit board 1100 are printed, and the character printing operation of the circuit board 1100 is completed. The cleaning mechanism 1000 is arranged on one side of the first conveying mechanism 200 and the second conveying mechanism 300, and is rotatable. During the printing process, the placement direction of the cleaning mechanism 1000 is parallel to the first conveying mechanism 200 and the second conveying mechanism 300. When the nozzle of the first spraying mechanism 600 or the second spraying mechanism 800 needs to be cleaned, the first conveying mechanism 200 / second conveying mechanism 300 moves to the left and is staggered with the cleaning mechanism 1000, then the cleaning mechanism 1000 rotates 90° and is opposite to the nozzle of the first spraying mechanism 600 / second spraying mechanism 800 in an up-down relationship. At this time, the nozzle of the first spraying mechanism 600 / second spraying mechanism 800 is lowered into the cleaning mechanism 1000 for cleaning. After the cleaning is completed, the nozzle is raised and reset, and the cleaning mechanism 1000 is rotated 90° in the opposite direction for resetting. The nozzle is cleaned by the cleaning mechanism 1000, so as to prevent the nozzle from being blocked by ink after the ink is sprayed for many times, and the nozzle cannot work normally.

[0070] According to the circuit board printer, the automatic printing and curing operations of the circuit board 1100 can be realized by the cooperation of the first conveying mechanism 200, the first spraying mechanism 600 and the first curing mechanism 700. After the printing of one surface of the circuit board 1100 is completed, the circuit board 1100 can be classified by the classification conveying mechanism 400. The circuit board 1100 which does not need to print the other surface is directly conveyed to the discharging position, and the circuit board 1100 which needs to print the other surface is conveyed to the turnover mechanism 500 for turnover. The circuit board 1100 after the turnover is conveyed to the second conveying mechanism 300 by the turnover mechanism 500. The automatic printing and curing operations of the other surface of the circuit board 1100 can be realized by the cooperation of the second conveying mechanism 300, the second spraying mechanism 800 and the second curing mechanism 900. In addition, the nozzle can be cleaned by the cleaning mechanism 1000, so as to prevent the nozzle from being blocked by ink after the ink is sprayed for many times, and the nozzle cannot work normally.

[0071] In some embodiments of the present application, the first spraying mechanism 600 has a plurality of first nozzles arranged side by side, the second spraying mechanism 800 has a plurality of second nozzles arranged side by side, each first nozzle and each second nozzle is in communication with an ink cartridge, and the circuit board printer further comprises a controller electrically connected with the first conveying mechanism 200, the second conveying mechanism 300, the sorting conveying mechanism 400, the turnover mechanism 500, the first spraying mechanism 600, the first curing mechanism 700, the second spraying mechanism 800, the second curing mechanism 900 and the cleaning mechanism 1000, for controlling the actions of the respective mechanisms so that the circuit board printer operates according to a set program. In the controller, a printing list is stored, the printing list has a plurality of printing schemes corresponding to different printing patterns, each printing scheme determines the ink spraying amount of each first nozzle or each second nozzle at different positions; each nozzle has a corresponding ink spraying amount at different positions for different printing patterns. The circuit board 1100 is further provided with an identification code, the identification code is used to record the printing pattern of the circuit board 1100, and an identification device (not shown in the figure) for identifying the identification code is arranged above the machine 100. By identifying the identification code through the identification device, the required printing pattern of the circuit board 1100 can be determined, so that the ink spraying amount of each nozzle can be controlled according to the printing pattern and the printing list during the printing process, and the accuracy of the printing pattern can be ensured.

[0072] In some embodiments of the present application, as Figure 2As shown, the classification conveying mechanism 400 includes a first grabbing unit 410, a conveying table 420 and a transfer table 430, the conveying table 420 includes a plurality of conveying rollers arranged at intervals, and the transfer table 430 includes a plurality of liftable transfer rollers arranged at intervals, each of which is located between two adjacent conveying rollers, wherein the conveying direction of the conveying table 420 is the same as that of the first conveying mechanism 200, and the conveying direction of the transfer table 430 is perpendicular to that of the conveying table 420, wherein the first grabbing unit 410 is used to grab the first surface printed and cured circuit board 1100 to the conveying table 420. In this example, the first grabbing unit 410 can include a moving device, a lifting device and a vacuum suction device, the lifting device is arranged on the moving device, and the vacuum suction device is arranged on the lifting device, the lifting device is used to drive the vacuum suction device to lift, and the moving device is used to drive the vacuum suction device to move. Wherein the vacuum suction device can adopt a vacuum suction cup and the like to grab the circuit board 1100, the lifting device is arranged on the slide rail, and the vacuum suction cup is arranged on the lifting device, the vacuum suction cup is moved left and right along the slide rail by the moving device, and the vacuum suction cup is moved up and down by the lifting device. When the circuit board 1100 is to be grabbed, the first conveying mechanism 200 conveys the circuit board 1100 to the rightmost side, the vacuum suction cup moves to the leftmost side, at this time, the vacuum suction cup is just located above the circuit board 1100, then the vacuum suction cup descends, grabs the circuit board 1100 and then rises, then the vacuum suction cup moves to the right to above the conveying table 420, and the vacuum suction cup descends to place the circuit board 1100 on the conveying table 420.

[0073] It should be noted that the circuit board 1100 is divided into two types, namely the first type and the second type, the first type represents that the second surface of the circuit board 1100 needs to be printed, and the second type represents that the second surface of the circuit board 1100 does not need to be printed. The identification code arranged on the surface of the circuit board 1100 also records whether the circuit board 1100 belongs to the first type or the second type. The identification device can determine whether the circuit board 1100 is of the first type or the second type through the identification code and send it to the controller, so that the controller controls the action of the classification conveying mechanism 400. When the circuit board is of the first type, the transfer rollers of the transfer table 430 remain stationary and are located below the conveying rollers of the conveying table 420, and do not interfere with the rotation of the conveying rollers. Through the rotation of the conveying rollers, the circuit board 1100 is moved to the turnover mechanism 500. When the circuit board is of the second type, the transfer rollers of the transfer table 430 will rise. Since each transfer roller is located between two adjacent conveying rollers, the transfer roller can pass through the gap between the two conveying rollers, rise above the conveying rollers, and support the circuit board 1100. At this time, the conveying rollers do not act, and the transfer table 430 drives the conveying rollers to move forward to the left side of the discharging table 1200, and then the transfer rollers descend below the conveying rollers and place the circuit board 1100 on the conveying table 420. At this time, the conveying rollers rotate to convey the circuit board 1100 to the discharging table 1200 for discharging. According to the classification conveying mechanism of the embodiment of the present application, the circuit board 1100 which needs to print the second surface and the circuit board 1100 which does not need to print the second surface can be classified, and the circuit board 1100 which needs to print the second surface is sent to the turnover mechanism 500 for turning over, and the circuit board 1100 which does not need to print the second surface is directly discharged, thereby improving the printing efficiency of the circuit board 1100 and meeting the printing needs of different types of circuit boards 1100.

[0074] As Figure 3As shown, in some embodiments of the present application, the turnover mechanism 500 includes a roller 510, a plurality of turntables arranged in an annular array on the roller 510, each of the turntables including a plurality of bearing columns 520 arranged at intervals; the turnover mechanism 500 further includes a transfer mechanism 530 and a second grabbing unit 540, and the sorting conveying mechanism 400 and the transfer mechanism 530 are located on both sides of the roller 510. When the sorting conveying mechanism 400 conveys the circuit board 1100 to the turnover mechanism 500, the circuit board 1100 is received by one of the turntables of the turnover mechanism 500, and then the roller 510 rotates to turn over the circuit board 1100. It should be noted that a plurality of conveying belts are arranged between the roller 510 and the transfer mechanism 530, and the conveying belts are arranged in a staggered manner with the bearing columns 520, when the turntable on which the circuit board 1100 is placed is rotated to the conveying belt, the circuit board 1100 on the turntable is received by the conveying belt, and the circuit board 1100 is conveyed to the transfer mechanism 530. The structure and action principle of the transfer mechanism 530 are similar to those of the sorting conveying mechanism 400, first, the circuit board 1100 is moved backward by the transfer table, and then the circuit board 1100 is moved leftward by the conveying table to be close to the second grabbing unit 540. The structure of the second grabbing unit 540 is the same as that of the first grabbing unit 410, and the circuit board 1100 is grabbed by the vacuum suction cup to the second bearing table 310. The second conveying mechanism 300 drives the circuit board 1100 placed on the second bearing table 310 to move along the left-to-right direction Figure 1 As shown, the circuit board 1100 moves along the left-to-right direction, and in the moving process, the circuit board 1100 is printed by the second spraying mechanism 800 and is solidified by the second solidifying mechanism 900, so as to complete the printing of the second surface of the circuit board 1100. At this time, the double surfaces of the circuit board 1100 are printed, and the character printing operation of the circuit board 1100 is completed. According to the turnover mechanism 500 of the embodiment of the present application, the circuit board 1100 can be automatically turned over, and the turned-over circuit board 1100 is sent to the second bearing table 310 for printing, so as to improve the turnover and printing efficiency.

[0075] As Figure 4As shown, in some embodiments of the present application, the surface of the first bearing table 210 is provided with a plurality of adjusting grooves 211, and a liftable positioning member 212 is movably arranged in each adjusting groove 211. The identification code on the circuit board 1100 also records the size information of the circuit board 1100. After the circuit board 1100 is placed on the first bearing table 210, the identification code is identified by the identification device, the size information of the circuit board 1100 on the first bearing table 210 is determined, and then the position of each positioning member 212 in the corresponding adjusting groove 211 is adjusted according to the size information, so that the positioning member 212 is located above the edge of the circuit board 1100, and then the positioning member 212 after the adjustment of the position is lowered to the surface of the circuit board 1100 to press the circuit board 1100. By arranging the adjusting grooves 211 and the positioning members 212, the positioning members 212 can be adjusted in position to adapt to circuit boards 1100 of different sizes. The positioning members 212 are in the initial state of being raised and located at the outermost side of the adjusting grooves 211. After the size of the circuit board 1100 is determined, the position of the positioning member 212 is adjusted to adapt to the circuit board 1100, and then the positioning member 212 is lowered to press the circuit board 1100, thereby fixing the circuit board 1100.

[0076] The circuit board printer according to the embodiments of the present application can realize the operations of printing and curing the circuit board 1100 row by row through the cooperation of the first conveying mechanism 200, the first spraying mechanism 600 and the first curing mechanism 700, so that the printing ink can be quickly cured. After the printing of one side of the circuit board 1100 is completed, the circuit board 1100 can be classified through the classification conveying mechanism 400, the circuit board 1100 which does not need to be printed on the other side is directly conveyed to the discharging table 1200, the circuit board 1100 which needs to be printed on the other side is conveyed to the turnover mechanism 500 to be turned over, and then the circuit board 1100 after being turned over is conveyed to the second bearing table 310 through the turnover mechanism 500. Through the cooperation of the second conveying mechanism 300, the second spraying mechanism 800 and the second curing mechanism 900, the other side of the circuit board 1100 can be automatically printed and cured. In addition, the nozzle can be cleaned through the cleaning mechanism 1000 to prevent the nozzle from being blocked by the printing ink after the printing ink is sprayed out of the nozzle for multiple times, so that the nozzle cannot work normally. The method can improve the printing efficiency and the printing effect.

[0077] On the other hand, based on the above-mentioned circuit board printer, the embodiments of the present application further propose a printing method of the circuit board printer, as shown in the method, Figure 5 The method comprises the following steps:

[0078] Step S100: placing the circuit board 1100 on the first bearing table 210;

[0079] Step S200: The circuit board 1100 is moved by the first conveying mechanism 200. During the movement, the first spraying mechanism 600 prints line by line on the first surface of the circuit board 1100, and the first curing mechanism 700 cures the printing ink on the first surface of the circuit board 1100 line by line.

[0080] Step S300: After the first surface of the circuit board 1100 has been printed and cured, the circuit board 1100 is received by the sorting and conveying mechanism 400.

[0081] Step S400: When the circuit board 1100 is of the first type, the first type of circuit board 1100 is transferred to the flipping mechanism 500 by the sorting and conveying mechanism 400; the circuit board 1100 has a first type and a second type, the first type indicates that the second surface of the circuit board 1100 needs to be printed, and the second type indicates that the second surface of the circuit board 1100 does not need to be printed.

[0082] Step S500: The first type of circuit board 1100 is flipped over by the flipping mechanism 500 and the flipped circuit board 1100 is transferred to the second support platform 310.

[0083] Step S600: The circuit board 1100 is moved by the second conveying mechanism 300. During the movement, the second spraying mechanism 800 prints line by line on the second surface of the circuit board 1100, and the second curing mechanism 900 cures the printing ink on the second surface of the circuit board 1100 line by line.

[0084] Step S700: The nozzles of the first spraying mechanism 600 or the second spraying mechanism 800 are cleaned by the cleaning mechanism 1000.

[0085] Specifically, the first conveying mechanism 200 is used to drive the circuit board 1100 placed on the first support platform 210 along... Figure 1 The circuit moves left and right as shown. During this movement, the first spraying mechanism 600 prints on the circuit board 1100, and the first curing mechanism 700 cures it, thus completing the printing of one side of the circuit board 1100. After printing, the circuit board 1100 is received by the sorting and conveying mechanism 400. When the circuit board 1100 does not need to have the other side printed, the sorting and conveying mechanism 400 directly conveys the circuit board 1100 to the unloading area; when the circuit board 1100 needs to have the other side printed, the sorting and conveying mechanism 400 conveys the circuit board 1100 to the flipping mechanism 500. The flipping mechanism 500 flips the circuit board 1100 and conveys it to the second carrier platform 310 on the second conveying mechanism 300. The second conveying mechanism 300 is used to move the circuit board 1100 placed on the second carrier platform 310 along... Figure 1The left and right direction movement is shown, during the movement, the circuit board 1100 is printed by the second spraying mechanism 800 and is cured by the second curing mechanism 900, so that the printing of the other surface of the circuit board 1100 is completed. At this time, the two surfaces of the circuit board 1100 are printed, and the character printing operation of the circuit board 1100 is completed. The cleaning mechanism 1000 is arranged on one side of the first conveying mechanism 200 and the second conveying mechanism 300 and can rotate. During the printing process, the placement direction of the cleaning mechanism 1000 is parallel to the first conveying mechanism 200 and the second conveying mechanism 300. When the nozzle of the first spraying mechanism 600 or the second spraying mechanism 800 needs to be cleaned, the first conveying mechanism 200 / second conveying mechanism 300 moves to the left and is staggered with the cleaning mechanism 1000. Then, the cleaning mechanism 1000 rotates by 90° and is in an up-down relationship with the nozzle of the first spraying mechanism 600 / second spraying mechanism 800. At this time, the nozzle of the first spraying mechanism 600 / second spraying mechanism 800 is lowered into the cleaning mechanism 1000 for cleaning. After the cleaning is completed, the nozzle is raised and reset, and the cleaning mechanism 1000 rotates by 90° in the opposite direction for resetting. The nozzle is cleaned by the cleaning mechanism 1000, so that the nozzle is prevented from being blocked by the ink after the ink is sprayed for many times, and the nozzle cannot work normally.

[0086] According to the printing method of the circuit board printer, the automatic printing and curing operations of the circuit board 1100 can be realized by cooperation of the first conveying mechanism 200, the first spraying mechanism 600 and the first curing mechanism 700. After the printing of one surface of the circuit board 1100 is completed, the circuit board 1100 can be classified by the classification conveying mechanism 400. The circuit board 1100 which does not need to print the other surface is directly conveyed to the discharging position, and the circuit board 1100 which needs to print the other surface is conveyed to the turnover mechanism 500 for turnover. The circuit board 1100 after the turnover is conveyed to the second conveying mechanism 300 by the turnover mechanism 500. The automatic printing and curing operations of the other surface of the circuit board 1100 can be realized by cooperation of the second conveying mechanism 300, the second spraying mechanism 800 and the second curing mechanism 900. In addition, the nozzle can be cleaned by the cleaning mechanism 1000, so that the nozzle is prevented from being blocked by the ink after the ink is sprayed for many times, and the nozzle cannot work normally. The method can improve the printing efficiency and the printing effect.

[0087] In some embodiments of the present application, after the step S100 of placing the circuit board 1100 on the first bearing table 210, the following three steps are further included:

[0088] The step S110 of identifying the identification code by the identification device to determine the size information of the circuit board 1100 on the first bearing table 210;

[0089] Step S120: According to the size information, adjust the position of each positioning element 212 in the corresponding adjustment groove 211 so that the positioning element 212 is located above the edge of the circuit board 1100;

[0090] Step S130: Lower the positioning member 212 after adjustment to the surface of the circuit board 1100 and press the circuit board 1100.

[0091] like Figure 4 As shown, in some embodiments of this application, a plurality of adjustment grooves 211 are provided on the periphery of the surface of the first support platform 210. A liftable positioning member 212 is movably disposed within each adjustment groove 211. An identification code on the circuit board 1100 also records the size information of the circuit board 1100. After the circuit board 1100 is placed on the first support platform 210, the identification code is identified by an identification device to determine the size information of the circuit board 1100 on the first support platform 210. Based on the size information, the position of each positioning member 212 within its corresponding adjustment groove 211 is adjusted so that the positioning member 212 is positioned above the edge of the circuit board 1100. Then, the adjusted positioning member 212 is lowered to the surface of the circuit board 1100 to press the circuit board 1100 firmly. By setting the adjustment groove 211 and the positioning member 212, the position of the positioning member 212 can be adjusted to adapt to circuit boards 1100 of different sizes. The positioning member 212 is initially in the raised state and is located at the outermost side of the adjustment groove 211. After the size of the circuit board 1100 is determined, the position of the positioning member 212 is adjusted accordingly so that the positioning member 212 just locks the circuit board 1100. Then the positioning member 212 descends and can press the circuit board 1100 to fix the circuit board 1100.

[0092] In some embodiments of this application, step S200 above, which involves moving the circuit board 1100 via the first conveying mechanism 200, printing line by line on the first surface of the circuit board 1100 via the first spraying mechanism 600, and curing line by line on the printing ink on the first surface of the circuit board 1100 via the first curing mechanism 700, includes the following four steps:

[0093] Step S210: Identify the identification code using the identification device to determine the printed pattern of the circuit board 1100 on the first carrier platform 210;

[0094] Step S220: Determine the ink ejection amount of each first printhead at each position based on the printed pattern and print list on the circuit board 1100 on the first carrier stage 210;

[0095] Step S230: The circuit board 1100 is moved by the first conveying mechanism 200, and in the moving process, a corresponding driving voltage is applied to each first nozzle to make each first nozzle spray a corresponding amount of ink at each position, so as to print the first surface of the circuit board 1100 row by row;

[0096] Step S240: The printed ink on the first surface of the circuit board 1100 is solidified row by row by the first solidifying mechanism 700.

[0097] Specifically, the first spraying mechanism 600 has a plurality of first nozzles arranged side by side, and the second spraying mechanism 800 has a plurality of second nozzles arranged side by side. Each first nozzle and each second nozzle is in communication with an ink cartridge. The circuit board printer further comprises a controller electrically connected with the first conveying mechanism 200, the second conveying mechanism 300, the classification conveying mechanism 400, the turnover mechanism 500, the first spraying mechanism 600, the first solidifying mechanism 700, the second spraying mechanism 800, the second solidifying mechanism 900 and the cleaning mechanism 1000, for controlling the actions of the mechanisms so that the circuit board printer operates according to the set program. In the controller, there is a printing list stored therein, which has a plurality of printing schemes corresponding to different printing patterns. Each printing scheme determines the amount of ink sprayed by each first nozzle or each second nozzle at different positions. For different printing patterns, each nozzle has a corresponding amount of ink at different positions. On the circuit board 1100, an identification code is further arranged, which is used to record the printing pattern of the circuit board 1100. An identification device (not shown in the figure) is arranged above the machine 100 for identifying the identification code. By identifying the identification code through the identification device, the printing pattern required by the circuit board 1100 can be determined, so that the amount of ink sprayed by each nozzle can be controlled according to the printing pattern and the printing list during the printing process, to ensure the accuracy of the printing pattern. By adjusting the driving voltage applied to the first nozzle, the amount of ink sprayed by the first nozzle can be controlled to spray a corresponding amount of ink.

[0098] In some embodiments of the present application, before placing the circuit board 1100 on the first bearing table 210, the following five steps are further included:

[0099] A test board is placed on the first bearing table 210 and / or the second bearing table 310;

[0100] A test pattern is printed on the surface of the test board by the first spraying mechanism 600 and / or the second spraying mechanism 800 to obtain an actual pattern;

[0101] When the test pattern does not match the actual pattern, the ultrasonic cleaning tank is rotated by 90° to be consistent with the arrangement direction of the plurality of first nozzles and / or the plurality of second nozzles;

[0102] Lower the first spraying mechanism 600 and / or the second spraying mechanism 800 to make the plurality of first nozzles and / or the plurality of second nozzles enter the ultrasonic cleaning tank.

[0103] Clean the plurality of first nozzles and / or the plurality of second nozzles by the ultrasonic cleaning tank.

[0104] Specifically, before formal printing, the test plate is used to detect whether the nozzles can normally spray ink, so as to avoid printing errors caused by nozzle failure. To this end, a test pattern to be printed is first set, and then the first spraying mechanism 600 and / or the second spraying mechanism 800 is sprayed to obtain an actual pattern obtained by spraying. When the actual pattern is consistent with the set test pattern, it indicates that the nozzle is normal. When the actual pattern is inconsistent with the set test pattern, it indicates that part of the nozzles are blocked by ink and cannot normally print. At this time, the nozzles are cleaned by the ultrasonic cleaning tank to remove the residual ink in the nozzles.

[0105] In some embodiments of the present application, the above-mentioned step S400: when the circuit board 1100 is of the first type, the first type of circuit board 1100 is conveyed to the turnover mechanism 500 by the classification conveying mechanism 400, comprising the following three sub-steps:

[0106] Step S410: when the circuit board 1100 is of the first type, the circuit board 1100 is conveyed to the turnover mechanism 500 by the conveying roller;

[0107] Step S420: when the circuit board 1100 is of the second type, the transfer roller is raised to the upper side of the conveying roller to hold the circuit board 1100;

[0108] Step S430: the circuit board 1100 on the transfer roller is moved towards the direction of the discharge table by the transfer table 430, the transfer roller is lowered to the lower side of the conveying roller, and the conveying roller conveys the circuit board 1100 to the discharge table 1200.

[0109] It should be noted that the circuit board 1100 is divided into two types, namely the first type and the second type, the first type represents that the second surface of the circuit board 1100 needs to be printed, and the second type represents that the second surface of the circuit board 1100 does not need to be printed. The identification code arranged on the surface of the circuit board 1100 also records whether the circuit board 1100 belongs to the first type or the second type. The identification device can determine whether the circuit board 1100 is of the first type or the second type through the identification code and send it to the controller, so that the controller controls the action of the classification conveying mechanism 400. When the circuit board is of the first type, the transfer rollers of the transfer table 430 remain stationary and are located below the conveying rollers of the conveying table 420, and do not interfere with the rotation of the conveying rollers. Through the rotation of the conveying rollers, the circuit board 1100 is moved to the turnover mechanism 500. When the circuit board is of the second type, the transfer rollers of the transfer table 430 will rise. Since each transfer roller is located between two adjacent conveying rollers, the transfer roller can pass through the gap between the two conveying rollers, rise above the conveying rollers, and hold the circuit board 1100. At this time, the conveying rollers do not act, and the transfer table 430 moves the conveying rollers to the left side of the discharging table 1200, and then the transfer rollers descend below the conveying rollers and place the circuit board 1100 on the conveying table 420. At this time, the conveying rollers rotate to convey the circuit board 1100 to the discharging table 1200 for discharging. According to the classification conveying mechanism of the embodiment of the present application, the circuit boards 1100 that need to print the second surface and do not need to print the second surface can be classified, and the circuit boards 1100 that need to print the second surface are sent to the turnover mechanism 500 for turning over, and the circuit boards 1100 that do not need to print the second surface are directly discharged, thereby improving the printing efficiency of the circuit board 1100 and meeting the printing needs of different types of circuit boards 1100.

[0110] As shown in Figure 2 In the present example, the classification conveying mechanism 400 includes a first grabbing unit 410, a conveying table 420, and a transfer table 430. The conveying table 420 includes a plurality of conveying rollers arranged at intervals, and the transfer table 430 includes a plurality of liftable transfer rollers arranged at intervals, each transfer roller being located between two adjacent conveying rollers. The conveying direction of the conveying table 420 is the same as the conveying direction of the first conveying mechanism 200, and the conveying direction of the transfer table 430 is perpendicular to the conveying direction of the conveying table 420. The first grabbing unit 410 is used to grab the circuit board 1100 whose first surface has completed printing and curing to the conveying table 420. In the present example, the first grabbing unit 410 can include a moving device, a lifting device, and a vacuum suction device. The above step S300: receiving the circuit board 1100 through the classification conveying mechanism 400 after the first surface of the circuit board 1100 has completed printing and curing, includes the following three steps:

[0111] Step S310: After the first surface of the circuit board 1100 is printed and cured, the vacuum suction device is lowered to the surface of the circuit board 1100 by the lifting device;

[0112] Step S320: After the circuit board is adsorbed by the vacuum suction device, the vacuum suction device is raised by the lifting device;

[0113] Step S330: After the vacuum suction device is moved to the conveying table by the moving device, the vacuum suction device is lowered by the lifting device, and the circuit board 1100 is placed on the conveying table 420.

[0114] It should be noted that the lifting device is arranged on the moving device, and the vacuum suction device is arranged on the lifting device. The lifting device is used to drive the vacuum suction device to ascend and descend, and the moving device is used to drive the vacuum suction device to move. The vacuum suction device can be a vacuum chuck or the like to grab the circuit board 1100. The lifting device is arranged on the slide rail, and the vacuum chuck is arranged on the lifting device. The vacuum chuck is moved left and right along the slide rail by the moving device, and the vacuum chuck is moved up and down by the lifting device. When the circuit board 1100 is to be grabbed, the first conveying mechanism 200 conveys the circuit board 1100 to the rightmost side, the vacuum chuck moves to the leftmost side, at this time, the vacuum chuck is just above the circuit board 1100, then the vacuum chuck is lowered, the circuit board 1100 is grabbed and then the vacuum chuck is raised, then the vacuum chuck moves to the right to above the conveying table 420, and the vacuum chuck is lowered to place the circuit board 1100 on the conveying table 420.

[0115] In some embodiments of the present application, the above-mentioned step S500: flipping the first type of circuit board 1100 by the flipping mechanism 500 and conveying the flipped circuit board 1100 to the second bearing table 310, includes the following three steps:

[0116] Step S510: After the circuit board 1100 conveyed by the classification conveying mechanism 400 is received by one of the turntables, the turntable is rotated by the roller 510;

[0117] Step S520: After the circuit board 1100 on the turntable is flipped, the flipped circuit board 1100 is received by the transfer mechanism 530;

[0118] Step S530: The flipped circuit board 1100 is conveyed to the second grabbing unit 540 by the transfer mechanism 530, and the circuit board 1100 on the transfer mechanism 530 is grabbed by the second grabbing unit 540 to the second bearing table 310.

[0119] As Figure 3As shown, in some embodiments of the present application, the turnover mechanism 500 includes a roller 510, a plurality of turntables arranged in an annular array on the roller 510, each of which includes a plurality of spaced-apart supporting columns 520; the turnover mechanism 500 further includes a transfer mechanism 530 and a second grabbing unit 540, and the sorting conveying mechanism 400 and the transfer mechanism 530 are located on both sides of the roller 510. When the sorting conveying mechanism 400 conveys the circuit board 1100 to the turnover mechanism 500, the circuit board 1100 is received by one of the turntables of the turnover mechanism 500, and then the roller 510 rotates to turn over the circuit board 1100. It should be noted that a plurality of conveying belts are arranged between the roller 510 and the transfer mechanism 530, and the conveying belts are arranged in a staggered manner with the supporting columns 520. When the turntable on which the circuit board 1100 is placed is turned to the conveying belt, the circuit board 1100 on the turntable is received by the conveying belt and conveyed to the transfer mechanism 530. The structure and action principle of the transfer mechanism 530 are similar to those of the sorting conveying mechanism 400. First, the circuit board 1100 is moved backward by the transfer table, and then the circuit board 1100 is moved leftward by the conveying table to be close to the second grabbing unit 540. The structure of the second grabbing unit 540 is the same as that of the first grabbing unit 410, and the circuit board 1100 is grabbed by the vacuum chuck to the second supporting table 310. The second conveying mechanism 300 drives the circuit board 1100 placed on the second supporting table 310 to move along the left-to-right direction Figure 1 As shown, the circuit board 1100 moves leftward and rightward, and in the moving process, the second spraying mechanism 800 is used to print on the circuit board 1100, and the second curing mechanism 900 is used for curing, so as to complete the printing on the second surface of the circuit board 1100. At this time, the double surfaces of the circuit board 1100 are printed, and the character printing operation of the circuit board 1100 is completed. According to the turnover mechanism 500 of the embodiment of the present application, the circuit board 1100 can be automatically turned over, and the turned-over circuit board 1100 is sent to the second supporting table 310 for printing, so as to improve the turnover and printing efficiency.

[0120] It should be noted that, since the first spraying mechanism 600 is in a continuous printing state, after printing one circuit board, the circuit board 1100 is sent to one of the turntables of the turnover mechanism 500 by the sorting conveying mechanism 400. After receiving one circuit board, the turnover mechanism 500 drives all the turntables to rotate by a first preset angle through the rollers 510, and the first preset angle is equal to the angle between two adjacent turntables, so that the next turntable can receive the next circuit board. Therefore, multiple circuit boards can be placed on the turnover mechanism 500 at the same time, and when one of the turntables rotates to the conveying belt, the circuit board on the turntable is flipped. The rollers 510 rotate by the first preset angle each time, and the circuit board on one of the turntables is flipped. In some embodiments of the present application, a cleaning mechanism 1000 is further provided for cleaning the nozzles of the first spraying mechanism 600 or the second spraying mechanism 800. The cleaning frequency of the cleaning mechanism 1000 is determined according to the ink ejection amount of the first spraying mechanism 600 and the second spraying mechanism 800. When the ink ejection amount of the first spraying mechanism 600 reaches a preset amount, the cleaning mechanism 1000 corresponding to the first spraying mechanism 600 cleans the nozzles of the first spraying mechanism 600. When the ink ejection amount of the second spraying mechanism 800 reaches a preset amount, the cleaning mechanism 1000 corresponding to the second spraying mechanism 800 cleans the nozzles of the second spraying mechanism 800. In some embodiments of the present application, after receiving the circuit board 1100 conveyed by the sorting conveying mechanism 400 through one of the turntables, the rollers 510 drive all the turntables to rotate by a first preset angle, which specifically includes the following three sub-steps:

[0121] When the first spraying mechanism 600 is in a cleaning state, the cleaning time of the first spraying mechanism 600 is obtained;

[0122] The rotation frequency of the rollers 510 is obtained, and the angle difference between the first turntable and the second turntable is determined according to the cleaning time, the rotation frequency and the first preset angle. The first turntable represents the turntable corresponding to the last printed circuit board before the first spraying mechanism 600 enters the cleaning state, and the second turntable represents the turntable corresponding to the first printed circuit board after the first spraying mechanism 600 completes the cleaning state;

[0123] According to the angle difference, the second preset angle is determined, and after the last printed circuit board before the first spraying mechanism 600 enters the cleaning state is flipped, the rollers 510 drive all the turntables to rotate by the second preset angle according to the rotation frequency.

[0124] Specifically, when the first spraying mechanism 600 is in the cleaning state, the printed circuit board cannot continue to be printed, but since there are still a plurality of printed circuit boards with the first surface printed and the second surface not printed on the turnover mechanism 500, during the cleaning of the first spraying mechanism 600, the second spraying mechanism 800 can continue to normally print the printed circuit board, and the roller 510 can also send the printed circuit board on the turntable to the second spraying mechanism 800 for printing according to the pre-set rotation frequency and the first preset angle of rotation each time. According to the rotation frequency of the roller 510, the first time required for the first spraying mechanism 600 to print the first surface of the printed circuit board and send the printed circuit board with the first surface printed to the turntable of the turnover mechanism 500 can be known. When the first spraying mechanism 600 is in the cleaning state, the cleaning time of the first spraying mechanism 600 is obtained, and according to the cleaning time, the first time and the rotation frequency of the first spraying mechanism 600, the number of rotations of the roller 510 during the period from the start of cleaning of the first spraying mechanism 600 to the completion of cleaning of the first spraying mechanism 600 and the printing of the next printed circuit board and the sending of the printed printed circuit board to the turnover mechanism 500 can be determined, and then the angle difference between the second turntable and the second turntable can be determined, and according to the angle difference, the second preset angle can be obtained. The second preset angle is equal to the product of the first preset angle and the number of rotations of the roller. Therefore, when the last printed printed circuit board is turned over after the first spraying mechanism 600 enters the cleaning state, the roller 510 needs to be rotated by the second preset angle at one time during the next rotation, so as to turn over the printed circuit board printed for the first time after the completion of the cleaning state of the first spraying mechanism 600.

[0125] The printing method of the printed circuit board printer according to the embodiment of the present application can realize the operations of printing and curing the printed circuit board 1100 line by line through the cooperation of the first conveying mechanism 200, the first spraying mechanism 600 and the first curing mechanism 700, so that the printing ink can be quickly cured. After the printing of one surface of the printed circuit board 1100 is completed, the printed circuit board 1100 can be classified through the classification conveying mechanism 400, the printed circuit board 1100 without the other surface printed can be directly conveyed to the discharging table 1200, the printed circuit board 1100 with the other surface printed can be conveyed to the turnover mechanism 500 for turning over, and then the turned-over printed circuit board 1100 can be conveyed to the second bearing table 310 through the turnover mechanism 500. Through the cooperation of the second conveying mechanism 300, the second spraying mechanism 800 and the second curing mechanism 900, the operations of automatically printing and curing the other surface of the printed circuit board 1100 can be realized. In addition, the nozzle can be cleaned through the cleaning mechanism 1000, so that the nozzle can be prevented from being blocked by the printing ink after the printing ink is sprayed out of the nozzle for multiple times, and the nozzle can be prevented from not working normally. The method can improve the printing efficiency and the printing effect.

[0126] On the other hand, the embodiment of the present application also provides a controller, as shown in the figure, comprising: Figure 6 ​

[0127] The processor 101 can be implemented by a general-purpose central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits, etc., for executing relevant programs to implement the technical solutions provided by the embodiments of the present application.

[0128] The memory 102 can be implemented by a read only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM), etc. The memory 102 can store an operating system and other application programs. When the technical solutions provided by the embodiments of the present application are implemented by software or firmware, relevant program codes are stored in the memory 102 and are called and executed by the processor 101 to implement the printing method of the circuit board printer according to the embodiments of the present application.

[0129] The input / output interface 103 is configured to implement information input and output.

[0130] The communication interface 104 is configured to implement communication interaction between the device and other devices. The communication can be implemented by a wired manner (for example, a USB, a network cable, etc.) or a wireless manner (for example, a mobile network, WIFI, Bluetooth, etc.).

[0131] The bus 105 is configured to transmit information between various components (for example, the processor 101, the memory 102, the input / output interface 103, and the communication interface 104) of the device.

[0132] The processor 101, the memory 102, the input / output interface 103, and the communication interface 104 are connected to each other by the bus 105 to realize communication connection between the device.

[0133] In another aspect, the embodiments of the present application further provide a storage medium, which is a computer readable storage medium. The storage medium stores a computer program. The computer program is executed by a processor to implement the above-mentioned printing method of the circuit board printer.

[0134] Memory, as used in the foregoing description, is a non-transitory computer- readable storage medium used for storage of non-transitory software programs and non- transitory computer-executable programs. In addition, memory can include a high-speed random access memory, and can also include a non-transitory memory such as at least one disk memory device, a flash memory device, or other non-transitory solid-state memory device. In some embodiments, memory can optionally include memory that is remotely located from the processor, which can be connected to the processor through a network. Examples of the network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof. The above-described device embodiments are merely illustrative, in which the units described as separate units can or can not be physically separated, and can be implemented in one location, or can be distributed over a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purposes of the present embodiment.

[0135] Although specific embodiments have been described herein, those of ordinary skill in the art will appreciate a variety of other modifications or alternative embodiments that are within the scope of the present disclosure. For example, any of the functions and / or processes described with respect to a particular device or component can be performed by any other device or component. In addition, while a variety of specific example implementations and architectures have been described herein, those of ordinary skill in the art will appreciate a variety of other modifications to the example implementations and architectures described herein that are within the scope of the present disclosure.

[0136] Certain aspects of the present disclosure are described above with reference to block and flow diagrams of systems, methods, apparatuses and / or computer program products according to example embodiments. It will be understood that one or more blocks of the block diagrams and flow diagrams, and combinations of blocks in the block diagrams and flow diagrams, can be implemented by

[0137] Thus, the blocks in the block diagrams and flow diagrams support combinations of means for performing the specified functions, combinations of elements or steps for performing the specified functions, and program instruction means for performing the specified functions. It will also be understood that each block of the block diagrams and flow diagrams, and combinations of blocks in the block diagrams and flow diagrams, can be implemented by dedicated hardware-based computer systems which perform the specified functions or combinations of special-purpose hardware and computer instructions.

[0138] The program modules, applications, and the like described herein can include one or more software components, including, for example, software objects, methods, data structures, and the like. Each such software component can include computer-executable instructions that, in response to execution by a computer, cause at least a portion of the functionality described herein (e.g., one or more operations of the example methods described herein) to be performed.

[0139] Software components can be coded in any of a variety of programming languages. One illustrative programming language can be a low-level programming language, such as an assembly language associated with a particular hardware architecture and / or operating system platform. Software components that include assembly language instructions can need to be translated via an assembler before execution by the hardware architecture and / or platform. Another illustrative programming language can be a higher-level programming language that can be portable to multiple architectures. Software components that include higher-level programming language instructions can need to be translated to an intermediate representation before execution, via an interpreter or compiler. Other examples of programming languages include, but are not limited to, a macro language, a shell or command language, a job control language, a script language, a database query or search language, or a report writing language. In one or more example embodiments, a software component that includes instructions in one of the above examples of programming languages can be executed directly by an operating system or other software component, without first being converted to another form.

[0140] Software components can be stored as files or other data storage constructs. Software components of a similar type or related function can be stored together in a particular directory, folder, or library, for example. Software components can be static (e.g., pre-set or fixed) or dynamic (e.g., created or modified at execution time).

[0141] The above embodiments of the present application have been described in detail but not limited to the above examples, within the scope of knowledge of those skilled in the art, various changes can be made without departing from the spirit of the present application.

Claims

1. A printing method of a circuit board printer, characterized by, The circuit board printer comprises a machine table, a first conveying mechanism, a second conveying mechanism, a sorting conveying mechanism, a turnover mechanism, a first spraying mechanism, a first curing mechanism, a second spraying mechanism and a second curing mechanism, the first conveying mechanism is provided with a first bearing table, the second conveying mechanism is provided with a second bearing table, one side of the first conveying mechanism and the second conveying mechanism is provided with a rotatable cleaning mechanism, and the method comprises the following steps: placing a circuit board on the first bearing table; driving the circuit board to move through the first conveying mechanism, and in the moving process, printing and curing the first surface of the circuit board row by row through the first spraying mechanism and the first curing mechanism; after the first surface of the circuit board is completed printing and curing, receiving the circuit board through the sorting conveying mechanism; when the circuit board is of a first type, conveying the circuit board of the first type to the turnover mechanism through the sorting conveying mechanism, the first type representing that the second surface of the circuit board needs to be printed; turning over the circuit board through the turnover mechanism and conveying the turned-over circuit board to the second bearing table; driving the circuit board to move through the second conveying mechanism, and in the moving process, printing and curing the second surface of the circuit board row by row through the second spraying mechanism and the second curing mechanism; cleaning the nozzle of the first spraying mechanism or the second spraying mechanism through the cleaning mechanism; the circuit board has the first type and a second type, the second type representing that the second surface of the circuit board does not need to be printed; the sorting conveying mechanism comprises a first grabbing unit, a conveying table and a transfer table, the conveying table comprises a plurality of conveying rollers arranged at intervals, the transfer table comprises a plurality of liftable transfer rollers arranged at intervals, each transfer roller is located between two adjacent conveying rollers, wherein the conveying direction of the conveying table is the same as the conveying direction of the first conveying mechanism, and the conveying direction of the transfer table is perpendicular to the conveying direction of the conveying table, wherein the first grabbing unit is used for grabbing the circuit board with the first surface completed printing and curing to the conveying table; when the circuit board is of the first type, conveying the circuit board of the first type to the turnover mechanism through the sorting conveying mechanism, comprising the following steps: when the circuit board is of the first type, conveying the circuit board to the turnover mechanism through the conveying rollers; when the circuit board is of the second type, lifting the transfer rollers above the conveying rollers to hold the circuit board; driving the circuit board on the transfer rollers to move towards the direction of a discharging table through the transfer table, lowering the transfer rollers below the conveying rollers, and conveying the circuit board to the discharging table through the conveying rollers.

2. The printing method of the circuit board printer according to claim 1, characterized by, The first spraying mechanism has a plurality of first nozzles arranged side by side, and the second spraying mechanism has a plurality of second nozzles arranged side by side. The circuit board printer further comprises a controller electrically connected to the first conveying mechanism, the second conveying mechanism, the sorting conveying mechanism, the turnover mechanism, the first spraying mechanism, the first curing mechanism, the second spraying mechanism, the second curing mechanism, and the cleaning mechanism. The controller stores a printing list, and the printing list has a plurality of printing schemes corresponding to different printing patterns. Each printing scheme determines the ink ejection amount of each first nozzle or each second nozzle at different positions. Each circuit board is provided with an identification code for recording the printing pattern of the circuit board. An identification device is arranged above the machine for identifying the identification code. The first conveying mechanism drives the circuit board to move. During the movement, the first spraying mechanism performs line-by-line printing on the first surface of the circuit board, and the first curing mechanism performs line-by-line curing of the printed ink on the first surface of the circuit board. The identification device identifies the identification code to determine the printing pattern of the circuit board on the first supporting table. According to the printing pattern of the circuit board on the first supporting table and the printing list, the ink ejection amount of each first nozzle at each position is determined. The first conveying mechanism drives the circuit board to move. During the movement, a corresponding driving voltage is applied to each first nozzle to make each first nozzle eject a corresponding ink ejection amount at each position, thereby performing line-by-line printing on the first surface of the circuit board. The first curing mechanism performs line-by-line curing of the printed ink on the first surface of the circuit board.

3. The printing method of the circuit board printer according to claim 1, characterized by, The first spraying mechanism has a plurality of first nozzles arranged side by side, and the second spraying mechanism has a plurality of second nozzles arranged side by side. The cleaning mechanism is provided with an ultrasonic cleaning tank. In the initial state, the extension direction of the ultrasonic cleaning tank is parallel to the extension direction of the first conveying mechanism or the second conveying mechanism. Before the step of placing the circuit board on the first supporting table, the printing method of the circuit board printer further comprises: Placing a test board on the first supporting table and / or the second supporting table; Printing a test pattern on the surface of the test board by the first spraying mechanism and / or the second spraying mechanism to obtain an actual pattern; When the test pattern does not match the actual pattern, rotating the ultrasonic cleaning tank by 90° to be consistent with the arrangement direction of the plurality of first nozzles and / or the plurality of second nozzles; Lowering the first spraying mechanism and / or the second spraying mechanism to make the plurality of first nozzles and / or the plurality of second nozzles enter the ultrasonic cleaning tank; Performing ultrasonic cleaning on the plurality of first nozzles and / or the plurality of second nozzles by the ultrasonic cleaning tank.

4. The printing method of the circuit board printer according to claim 2, characterized by, The identification device is further configured to determine, according to the identification code, whether the circuit board on which the first surface is completed with printing and curing is of a first type or a second type.

5. The printing method of the circuit board printer according to claim 1, characterized by, The turnover mechanism comprises a roller, a plurality of rotating tables arranged in an annular array on the roller, each rotating table comprising a plurality of bearing columns arranged at intervals, and a transfer mechanism and a second grabbing unit, the sorting conveying mechanism and the transfer mechanism being located on both sides of the roller; The turnover mechanism comprises a roller, a plurality of rotating tables arranged in an annular array on the roller, each rotating table comprising a plurality of bearing columns arranged at intervals, and a transfer mechanism and a second grabbing unit, the sorting conveying mechanism and the transfer mechanism being located on both sides of the roller; The turnover mechanism comprises a roller, a plurality of rotating tables arranged in an annular array on the roller, each rotating table comprising a plurality of bearing columns arranged at intervals, and a transfer mechanism and a second grabbing unit, the sorting conveying mechanism and the transfer mechanism being located on both sides of the roller; After one of the rotating tables receives the circuit board conveyed by the sorting conveying mechanism, all the rotating tables are driven to rotate by the roller through a first preset angle; When the circuit board on one of the rotating tables is completed with turnover, the circuit board after turnover is received by the transfer mechanism; 6. The printing method of the circuit board printer according to claim 5, characterized by, The circuit board after turnover is conveyed by the transfer mechanism to the second grabbing unit, and the circuit board on the transfer mechanism is grabbed by the second grabbing unit to the second bearing table. The turnover mechanism comprises a roller, a plurality of rotating tables arranged in an annular array on the roller, each rotating table comprising a plurality of bearing columns arranged at intervals, and a transfer mechanism and a second grabbing unit, the sorting conveying mechanism and the transfer mechanism being located on both sides of the roller; When the first spraying mechanism is in a cleaning state, the cleaning time of the first spraying mechanism is obtained; The rotating frequency of the roller is obtained, and according to the cleaning time, the rotating frequency and the first preset angle, the angle difference between the first rotating table and the second rotating table is determined; wherein the first rotating table represents the rotating table corresponding to the last printed circuit board before the first spraying mechanism enters the cleaning state, and the second rotating table represents the rotating table corresponding to the first printed circuit board after the first spraying mechanism completes the cleaning state; 7. The printing method of the circuit board printer according to claim 2, characterized by, According to the angle difference, a second preset angle is determined, and when the last printed circuit board before the first spraying mechanism enters the cleaning state is completed with turnover, the rotating frequency is controlled to drive all the rotating tables to rotate through the second preset angle. The surface of the first bearing table is provided with a plurality of adjusting grooves on the periphery, and a liftable positioning member is movably arranged in the adjusting groove; the identification code is further used to record the size information of the circuit board; After the circuit board is placed on the first bearing table, the printing method of the circuit board printer further comprises: The identification device is used to identify the identification code to determine the size information of the circuit board on the first bearing table; According to the size information, the position of each positioning member in the corresponding adjusting groove is adjusted so that the positioning member is located above the edge of the circuit board; 8. The printing method of the circuit board printer according to claim 4, characterized by, The positioning member after the position adjustment is lowered to the surface of the circuit board to compress the circuit board. The first grabbing unit comprises a moving device, a lifting device and a vacuum suction device, the lifting device is arranged on the moving device, and the vacuum suction device is arranged on the lifting device; the lifting device is used to drive the vacuum suction device to lift, and the moving device is used to drive the vacuum suction device to move. The circuit board is received by the sorting conveying mechanism after the first surface of the circuit board is completed printing and curing, comprising: The vacuum adsorption device is lowered to the surface of the circuit board by the lifting device after the first surface of the circuit board is completed printing and curing; The vacuum adsorption device is raised by the lifting device after the circuit board is adsorbed by the vacuum adsorption device; The vacuum adsorption device is lowered by the lifting device after the vacuum adsorption device is driven to the conveying table by the moving device, and the circuit board is placed on the conveying table.

9. A circuit board printer characterized by comprising: The circuit board printer comprises a machine table, a first conveying mechanism and a second conveying mechanism arranged on the surface of the machine table, a sorting conveying mechanism and a turnover mechanism, a first spraying mechanism and a first curing mechanism arranged above the first conveying mechanism, and a second spraying mechanism and a second curing mechanism arranged above the second conveying mechanism, a first bearing table is arranged on the first conveying mechanism, a second bearing table is arranged on the second conveying mechanism, and a rotatable cleaning mechanism is arranged on one side of the first conveying mechanism and the second conveying mechanism, and the circuit board printer is used to realize the printing method of the circuit board printer as claimed in any one of claims 1-8.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer executable instructions for causing a computer to execute the printing method of the circuit board printer as claimed in any one of claims 1-8.

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