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

Abstract

The invention discloses a printing method of a circuit board printer, the circuit board printer, a controller and a 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; performing line-by-line printing on the first surface of the circuit board through a first spraying mechanism, and performing line-by-line curing on printing ink on the first surface of the circuit board through a first curing mechanism; when the circuit boards are of the first type, the circuit boards of the first type are conveyed to the turnover mechanism through the classification conveying mechanism; turning over the circuit board of the first type through a turnover mechanism, and conveying the turned-over circuit board to a second bearing table; printing the second surface of the circuit board line by line through a second spraying mechanism, and curing the printing ink on the second surface of the circuit board line by line through a second curing mechanism; and the spray head of the first spraying mechanism or the second spraying mechanism is cleaned through the 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 nozzle of the printer may be blocked after multiple printing, which causes the nozzle to fail to normally print. 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 rotatable cleaning mechanism 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: placing a circuit board on the first bearing table; 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; after the first surface of the circuit board is completed printing and curing, receiving the circuit board by the classification conveying mechanism; when the circuit board is of a first type, conveying the circuit board of the first type to the turnover mechanism by the classification conveying mechanism, the first type representing that the second surface of the circuit board needs to be printed; The first type of circuit board is flipped by the flipping mechanism, and the flipped circuit board is transferred to the second bearing table; The second surface of the circuit board is moved by the second transfer 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 of the second surface of the circuit board is cured line by line by the second curing mechanism; The nozzles of the first spraying mechanism or the second spraying mechanism are cleaned by the cleaning mechanism.

[0005] According to some embodiments of the 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 is in communication with an ink cartridge, and the circuit board printer further comprises a controller electrically connected with the first transfer mechanism, the second transfer mechanism, the classification transfer mechanism, the flipping 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, 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, the identification code is 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; The circuit board is moved by the first transfer 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 of the first surface of the circuit board is cured line by line by the first curing mechanism, comprising: The identification code is identified by the identification device to determine the printing pattern of the circuit board on the first bearing table; According to the printing pattern of the circuit board on the first bearing table and the printing list, the ink ejection amount of each first nozzle at each position is determined; The circuit board is moved by the first transfer mechanism, and in the moving process, the ink ejection amount of each first nozzle at each position is determined; The printed ink of the first surface of the circuit board is cured line by line by the first curing mechanism.

[0006] 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, which is initially arranged in parallel with 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; Cleaning the plurality of first nozzles and / or the plurality of second nozzles by the ultrasonic cleaning tank. According to some embodiments of the present application, the classified 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, and the transfer table comprises 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 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 to grab the circuit board with the first surface completed printing and curing to the conveying table, and the identification device is further used to determine the circuit board with the first surface completed printing and curing as the first type or the second type according to the identification code; When the circuit board is of the first type, the classified conveying mechanism is used to convey the circuit board of the first type to the turnover mechanism, which comprises: When the circuit board is of the first type, the circuit board is conveyed to the turnover mechanism by the conveying rollers; When the circuit board is of the second type, the transfer rollers are lifted to be above the conveying rollers to hold up the circuit board; The circuit board on the transfer rollers is moved towards the direction of the discharge table by the transfer table, the transfer rollers are lowered to be below the conveying rollers, and the conveying rollers are used to convey the circuit board to the discharge table.

[0007] According to some embodiments of the present application, the turnover mechanism comprises a roller, a plurality of rotating tables arranged in an annular array on the roller, each of the rotating tables comprising a plurality of bearing columns arranged at intervals; the turnover mechanism further comprises 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 turning over of the circuit board of the first type by the turnover mechanism and the conveying of the turned-over circuit board to the second bearing table comprise: 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 by a first preset angle; When the circuit board on one of the rotating tables is turned over, the turned-over circuit board is received by the transfer mechanism; The turned-over circuit board 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.

[0008] According to some embodiments of the present application, 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 by a first preset angle, which comprises: When the first spraying mechanism is in a cleaning state, the cleaning time of the first spraying mechanism is obtained; The rotation frequency of the roller is obtained, and the angle difference between a first rotating table and a second rotating table is determined according to the cleaning time, the rotation frequency and the first preset angle; wherein the first rotating table represents the rotating table corresponding to the circuit board printed last before the first spraying mechanism enters the cleaning state, and the second rotating table represents the rotating table corresponding to the circuit board printed first after the first spraying mechanism completes the cleaning state; According to the angle difference, a second preset angle is determined, and when the circuit board printed last before the first spraying mechanism enters the cleaning state is turned over, all the rotating tables are driven to rotate by the roller by the second preset angle according to the rotation frequency.

[0009] 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; 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 size information of the circuit board on the first bearing table is determined by identifying the identification code by the identification device; 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. The positioning member after the position adjustment is lowered to the surface of the circuit board to compress the circuit board.

[0010] 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. After the first surface of the circuit board is completed printing and curing, the circuit board is received by the classification conveying mechanism, which comprises: After the first surface of the circuit board is completed printing and curing, the vacuum suction device is lowered to the surface of the circuit board by the lifting device; After the circuit board is adsorbed by the vacuum suction device, the vacuum suction device is lifted by the lifting device; After the vacuum suction device is driven to the conveying table by the moving device, the vacuum suction device is lowered by the lifting device, and the circuit board is placed on the conveying table.

[0011] In the second aspect, the circuit board printer according to the embodiments of the present application comprises 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 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 according to the first aspect.

[0012] In the third aspect, the controller according to the embodiments of the present application comprises 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, and 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.

[0013] In a fourth aspect, a computer readable storage medium storing computer executable instructions is provided. The computer executable instructions are configured to cause a computer to perform the printing method of the circuit board printer according to the first aspect.

[0014] 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 first conveying mechanism, the first spraying mechanism and the first curing mechanism are cooperated to realize the line-by-line printing and curing operation of the circuit board, so that the printing ink is quickly cured; after the printing of one surface of the circuit board is completed, the classification conveying mechanism is used to classify the circuit board, the circuit board without the other surface to be printed is directly conveyed to the discharging position, and the circuit board with the other surface to be printed is conveyed to the turnover mechanism to be turned over, and then the circuit board turned over is conveyed to the second bearing table by the turnover mechanism, and the second conveying mechanism, the second spraying mechanism and the second curing mechanism are cooperated to realize the automatic printing and curing operation of the other surface of the circuit board. In addition, the cleaning mechanism is used to clean the nozzle, so that the nozzle is prevented from being blocked by the printing ink after the printing ink is sprayed out of the nozzle for many times, and the nozzle is prevented from being unable to work normally. The method can improve the printing efficiency and the printing effect.

[0015] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which: Figure 1 The structure schematic diagram of the circuit board printer according to the embodiments of the present application is shown in the figure. Figure 2 The structure schematic diagram of the circuit board printer according to the embodiments of the present application is shown in the figure. Figure 3 The structure schematic diagram of the circuit board printer according to the embodiments of the present application is shown in the figure. Figure 4 The structure schematic diagram of the circuit board printer according to the embodiments of the present application is shown in the figure. Figure 1 The enlarged schematic diagram of part A is shown in the figure. Figure 5 The step flow chart of the printing method of the circuit board printer according to the embodiments of the present application is shown in the figure. Figure 6 The structure schematic diagram of the controller according to the embodiments of the present application is shown in the figure. DETAILED DESCRIPTION

[0017] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein the same or like component have the same or similar designations. The embodiments described below are presented by way of example only and are not intended to limit the application as defined by the appended claims. The steps in the following embodiments are only set forth for illustrative purposes and are not meant to limit the scope of the application. The order of the steps in the embodiments can be adapted according to the understanding of those skilled in the art, and the execution order of each step in the embodiments can be adaptively adjusted.

[0018] In the description of the present application, it needs to be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by the upper, lower, front, rear, left, right and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and is not intended to 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 cannot be understood as a limitation on the present application.

[0019] The terms "first", "second", "third", and "fourth" and the like in the description and claims of the present application and the accompanying drawings, are used to distinguish different objects, and are not intended to describe a particular sequence. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0020] In the present application, the term "embodiment" means that the specific features, structures or properties described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily refer to the same embodiment, nor is it independent or alternative to other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0021] 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. 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 turn over the circuit board and place it on the machine again, which is a relatively cumbersome operation process and has a low printing efficiency. In addition, after the nozzle of the printer is used for printing for many times, the ink may be blocked, which causes the nozzle to be unable to normally print.

[0022] To this end, the embodiment of the present application provides a printing method of a circuit board printer, the circuit board printer, the controller and the 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 classified conveying mechanism, the circuit board without the other side to be printed is directly conveyed to the discharging place, and the circuit board with the other side to be printed is conveyed to the turnover mechanism to be turned over, and then the circuit board turned over is conveyed to the second bearing table through the turnover mechanism, and the automatic printing and curing operation of the other side of the circuit board is realized through the cooperation of the second conveying mechanism, the second spraying mechanism and the second curing mechanism. In addition, the cleaning mechanism can be used to clean the nozzle to prevent the nozzle from being blocked by the printing ink after the printing ink is sprayed out for many times, so that the nozzle cannot work normally. The method can improve the printing efficiency and printing effect.

[0023] The printing method of the circuit board printer, the circuit board printer, the controller and the medium of the embodiment of the present application will be described in detail below with reference to the drawings.

[0024] On the one hand, as shown in Figure 1 The embodiment of the present application provides a circuit board printer, which comprises a machine table 100, a first conveying mechanism 200 and a second conveying mechanism 300 arranged on the surface of the machine table 100, a classified conveying mechanism 400 and a turnover mechanism 500, 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, wherein a first bearing table 210 is arranged on the first conveying mechanism 200, a second bearing table 310 is arranged on the second conveying mechanism 300, and a rotatable cleaning mechanism 1000 is arranged on one side of the first conveying mechanism 200 and the second conveying mechanism 300.

[0025] The first conveying mechanism 200 is used to drive the circuit board 1100 placed on the first bearing table 210 to move along the direction of arrow A. Figure 1The left and right direction movement is shown, in the moving process, the circuit board 1100 is printed by the first spraying mechanism 600 and cured by the first curing mechanism 700, so as to complete the printing of one surface of the circuit board 1100. After the printing is completed, the circuit board 1100 is received by the classification conveying mechanism 400, when the circuit board 1100 does not need to print another surface, the classification conveying mechanism 400 directly conveys the circuit board 1100 to the discharging place; when the circuit board 1100 needs to print another surface, the classification 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, 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 and right direction of the second conveying mechanism 300, and the circuit board 1100 is printed by the second spraying mechanism 800 and cured by the second curing mechanism 900 in the moving process, 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. Figure 1 The left and right direction movement is shown, in the moving process, the circuit board 1100 is printed by the first spraying mechanism 600 and cured by the first curing mechanism 700, so as to complete the printing of one surface of the circuit board 1100. After the printing is completed, the circuit board 1100 is received by the classification conveying mechanism 400, when the circuit board 1100 does not need to print another surface, the classification conveying mechanism 400 directly conveys the circuit board 1100 to the discharging place; when the circuit board 1100 needs to print another surface, the classification 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, 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 and right direction of the second conveying mechanism 300, and the circuit board 1100 is printed by the second spraying mechanism 800 and cured by the second curing mechanism 900 in the moving process, 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.

[0026] According to the circuit board printer, the first conveying mechanism 200, the first spraying mechanism 600 and the first curing mechanism 700 are cooperated to realize the automatic printing and curing operation of the circuit board 1100, after the printing of one surface of the circuit board 1100 is completed, the classification conveying mechanism 400 is used to classify the circuit board 1100, the circuit board 1100 which does not need to print the other surface is directly conveyed to the discharging position, the circuit board 1100 which needs to print the other surface is conveyed to the turnover mechanism 500 to be turned over, and then the turned-over circuit board 1100 is conveyed to the second conveying mechanism 300 by the turnover mechanism 500, the second conveying mechanism 300, the second spraying mechanism 800 and the second curing mechanism 900 are cooperated to realize the automatic printing and curing operation of the other surface of the circuit board 1100. In addition, the cleaning mechanism 1000 is used to clean the nozzle, so that the nozzle is prevented from being blocked by the ink after the ink is sprayed for many times, and the nozzle is prevented from not working normally.

[0027] 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 the ink cartridge, and the circuit board printer further comprises a controller which is 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 curing mechanism 700, the second spraying mechanism 800, the second curing mechanism 900 and the cleaning mechanism 1000, and is used to control the actions of the mechanisms so that the circuit board printer operates according to the 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, and each nozzle has a corresponding ink spraying amount at different positions for different printing patterns. An identification code is further arranged on the circuit board 1100, the identification code is used to record the printing pattern of the circuit board 1100, an identification device (not shown in the figure) for identifying the identification code is arranged above the machine 100, the required printing pattern of the circuit board 1100 can be determined by identifying the identification code by the identification device, so that the ink spraying amount of each nozzle can be controlled according to the printing pattern and the printing list in the printing process, and the accuracy of the printing pattern is ensured.

[0028] 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.

[0029] 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.

[0030] 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 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 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 leftward and rightward, 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 bearing table 310 for printing, so as to improve the turnover and printing efficiency.

[0031] 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.

[0032] 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, and 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.

[0033] 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 figure, the method comprises the following steps: Figure 5 As shown in the figure, the method comprises the following steps: Step S100: placing the circuit board 1100 on the first bearing table 210; 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. 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. 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. 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. 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. Step S700: The nozzles of the first spraying mechanism 600 or the second spraying mechanism 800 are cleaned by the cleaning mechanism 1000.

[0034] 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 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 can rotate. During the printing, the placing 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.

[0035] 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 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 be printed on the other surface is directly conveyed to the discharging position, and the circuit board 1100 which needs to be printed on the other surface is conveyed to the turnover mechanism 500 for turnover. The circuit board 1100 which is turned over 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 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.

[0036] In some embodiments of the present application, after the step S100: placing the circuit board 1100 on the first bearing table 210, the following three steps are further included: Step S110: determining the size information of the circuit board 1100 on the first bearing table 210 by recognizing the identification code through the recognition device; 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; Step S130: Lower the positioning member 212 after adjustment to the surface of the circuit board 1100 and press the circuit board 1100.

[0037] 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.

[0038] 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: 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; 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; Step S230: The circuit board 1100 is moved by the first conveying mechanism 200. During the movement, a corresponding driving voltage is applied to each first printhead, so that each first printhead sprays out a corresponding amount of ink at each position to print line by line on the first surface of the circuit board 1100. Step S240: solidifying the printing ink on the first surface of the circuit board 1100 row by row by the first solidifying mechanism 700.

[0039] 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, 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 solidifying mechanism 700, the second spraying mechanism 800, the second solidifying mechanism 900 and the cleaning mechanism 1000, for controlling the actions of each mechanism, so that the circuit board printer operates according to the set program. In the controller, there is a printing list stored, 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 nozzle has a corresponding ink ejection amount at different positions for different printing patterns. The circuit board 1100 is also provided with an identification code, 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 required printing pattern of the circuit board 1100 can be determined, so that the ink ejection amount of 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 ink ejection amount of the first nozzle can be controlled to eject the corresponding ink ejection amount.

[0040] 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: Placing a test board on the first bearing table 210 and / or the second bearing table 310; Printing a test pattern 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; 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 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; Cleaning the plurality of first nozzles and / or the plurality of second nozzles by the ultrasonic cleaning tank.

[0041] Specifically, before formal printing, whether the nozzles can normally spray ink is detected by the test plate to avoid printing errors due to 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 are caused to spray, to obtain an actual pattern obtained by spraying. When the actual pattern is consistent with the set test pattern, it indicates that the nozzles are 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 print normally. At this time, the nozzles are cleaned by the ultrasonic cleaning tank to remove the residual ink in the nozzles.

[0042] In some embodiments of the present application, the above 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, which includes the following three sub-steps: 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; Step S420: when the circuit board 1100 is of the second type, the transfer roller is raised to above the conveying roller to hold up the circuit board 1100; Step S430: the circuit board 1100 on the transfer roller is moved toward the direction of the discharge table by the transfer table 430, and the transfer roller is lowered to below the conveying roller, so that the conveying roller conveys the circuit board 1100 to the discharge table 1200.

[0043] 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 lift 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 discharge 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 discharge table 1200 for discharge. 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.

[0044] 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: 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; Step S320: After the circuit board is adsorbed by the vacuum suction device, the vacuum suction device is raised by the lifting device; 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.

[0045] 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.

[0046] In some embodiments of the present application, the above-mentioned step S500: turning over the first type of circuit board 1100 by the turnover mechanism 500 and conveying the turned-over circuit board 1100 to the second bearing table 310, includes the following three steps: 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; Step S520: After the circuit board 1100 on the turntable is turned over, the turned-over circuit board 1100 is received by the transfer mechanism 530; Step S530: The turned-over 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.

[0047] 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 on 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.

[0048] 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 the classification conveying mechanism 400, and the classification conveying mechanism 400 conveys the circuit board 1100 to one of the turntables of the turnover mechanism 500. After receiving one circuit board, the turnover mechanism 500 drives all the turntables to rotate by the first preset angle through the roller 510, and the first preset angle is equal to the angle between the adjacent two 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 through multiple turntables, and when one of the turntables rotates to the conveying belt, the circuit board on the turntable is turned over at this time. The roller 510 rotates by the first preset angle each time, and the circuit board on one of the turntables is turned over. In some embodiments of the present application, a cleaning mechanism 1000 is further arranged to clean 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 classification conveying mechanism 400 through one of the turntables, the roller 510 drives all the turntables to rotate by the first preset angle, which specifically includes the following three sub-steps: When the first spraying mechanism 600 is in a cleaning state, the cleaning time of the first spraying mechanism 600 is obtained; The rotation frequency of the roller 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; 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 turned over, the roller 510 drives all the turntables to rotate by the second preset angle according to the rotation frequency.

[0049] 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.

[0050] 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, and 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, and the operations of automatically printing and curing the other surface of the printed circuit board 1100 can be realized through 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 through the cleaning mechanism 1000, so as to prevent the nozzle from being blocked by the printing ink after the printing ink is sprayed out of the nozzle for multiple times, and the nozzle cannot work normally. The method can improve the printing efficiency and the printing effect.

[0051] On the other hand, the embodiment of the present application also provides a controller, as shown in the figure, comprising: Figure 6 ​ The processor 101 can be implemented in the form of a general central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits, and is configured to execute related programs to implement the technical solutions provided by the embodiments of the present application. The memory 102 can be implemented in the form of a read only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). 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, the related 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. The input / output interface 103 is configured to implement information input and output. The communication interface 104 is configured to implement the communication interaction between the device and other devices. The communication can be realized by a wired manner (for example, a USB, a network cable, etc.) or a wireless manner (for example, a mobile network, WIFI, Bluetooth, etc.). 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. The processor 101, the memory 102, the input / output interface 103, and the communication interface 104 are connected to each other through the bus 105 to realize the communication connection between the device.

[0052] 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. When the computer program is executed by a processor, the printing method of the circuit board printer is realized.

[0053] 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.

[0054] While specific embodiments are described herein, one of ordinary skill in the art will appreciate that many other modifications or alternative embodiments are within the scope of the present disclosure. For example, any of the functions and / or process capabilities described in connection with a particular device or component can be performed by any other device or component. Additionally, while various exemplary implementations and architectures have been described in accordance with embodiments of the present disclosure, one of ordinary skill in the art will recognize that many other modifications to the exemplary implementations and architectures described herein are within the scope of the present disclosure.

[0055] 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

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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. Software components can be static (e.g., pre-set or fixed) or dynamic (e.g., created or modified at execution time).

[0060] 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; moving the circuit board 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 printed and cured, 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 indicating 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; moving the circuit board 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.

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, the second spraying mechanism 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, 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, 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, the identification code is used to record the printing pattern of the circuit board, and the top of the machine table is provided with an identification device for identifying the identification code; The method of moving the circuit board through the first conveying mechanism, and in the moving process, printing the first surface of the circuit board row by row through the first spraying mechanism and curing the printed ink of the first surface of the circuit board row by row through the first curing mechanism comprises the following steps: identifying the identification code through the identification device to determine the printing pattern of the circuit board on the first bearing table; determining the ink ejection amount of each first nozzle at each position according to the printing pattern of the circuit board on the first bearing table and the printing list. The first conveying mechanism drives the circuit board to move, and corresponding driving voltages are applied to each of the first nozzles during the movement, 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; The first curing mechanism cures the printed ink on the first surface of the circuit board row by row.

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, 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 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 so that the plurality of first nozzles and / or the plurality of second nozzles enter the ultrasonic cleaning tank; ultrasonic cleaning 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 circuit board has the first type and the second type, and the second type represents that the second surface of the circuit board does not need to be printed; the classification 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, and the transfer table comprises a plurality of liftable transfer rollers arranged at intervals, each of the transfer rollers being 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 to grab the circuit board with a printed and cured first surface to the conveying table, and the identification device is further used to determine, according to the identification code, whether the circuit board with a printed and cured first surface is of the first type or the second type; When the circuit board is of the first type, conveying the circuit board of the first type to the turnover mechanism by the classification conveying mechanism comprises: When the circuit board is of the first type, conveying the circuit board to the turnover mechanism by 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; moving the circuit board on the transfer rollers toward the direction of the discharge table by the transfer table, lowering the transfer rollers below the conveying rollers, and conveying the circuit board to the discharge table by the conveying rollers.

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 spaced-apart supporting columns; the turnover mechanism further comprises 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 spaced-apart supporting columns; the turnover mechanism further comprises 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 turned over, the turned-over circuit board is received by the transfer mechanism; The turned-over circuit board 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 supporting table.

6. The printing method of the circuit board printer according to claim 5, characterized by, 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 first spraying mechanism is in a cleaning state, the cleaning time of the first spraying mechanism is obtained; The rotation frequency of the roller is obtained, and the angle difference between the first rotating table and the second rotating table is determined according to the cleaning time, the rotation frequency and the first preset angle; 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; 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 turned over, the rotating tables are driven to rotate by the roller through the second preset angle according to the rotation frequency.

7. The printing method of the circuit board printer according to claim 2, characterized by, The surface of the first supporting table is provided with a plurality of adjusting grooves, and a liftable positioning member is movably arranged in each adjusting groove; the identification code is also used to record the size information of the circuit board; After the circuit board is placed on the first supporting table, the printing method of the circuit board printer further comprises: The identification code is identified by the identification device to determine the size information of the circuit board on the first supporting 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; The positioning member after the position adjustment is lowered to the surface of the circuit board to compress the circuit board.

8. The printing method of the circuit board printer according to claim 4, characterized by, 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; After the first surface of the circuit board is printed and cured, the circuit board is received by the sorting conveying mechanism, comprising: After the first surface of the circuit board is printed and solidified, the vacuum adsorption device is lowered to the surface of the circuit board by the lifting device; After the circuit board is adsorbed by the vacuum adsorption device, the vacuum adsorption device is lifted by the lifting device; After the vacuum adsorption device is driven to the conveying table by the moving device, the vacuum adsorption device is lowered by the lifting 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 classification conveying mechanism and a turnover mechanism, a first spraying mechanism and a first solidification mechanism arranged above the first conveying mechanism, and a second spraying mechanism and a second solidification 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 according to 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 according to any one of claims 1-8.

Images