Multifunctional printed circuit board automatic jet printing equipment

Abstract

A multifunctional printed circuit board automatic jet printing device comprises a jet printing module and a feeding module, the jet printing module comprises a plurality of ink boxes, an ink switching device and a spray head, the ink boxes are used for storing different kinds of ink, the ink boxes are communicated with the spray head through the ink switching device, and the feeding module is connected with the spray head through the ink switching device. The printing ink switching device selects different ink boxes to be communicated with the spray head and controls the outflow amount of printing ink in the ink boxes, and the feeding module is used for feeding a circuit board to the position corresponding to the spray head. According to the equipment, ink formulas required in the circuit board preparation process can be quickly switched, the non-production downtime is shortened, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of PCB process, especially relates to a multifunctional printed circuit board automatic printing device. BACKGROUND

[0002] The circuit board is an essential component in electronic equipment, and in the preparation process of the circuit board, it involves production processes such as circuit etching, solder mask, selective gold plating (the utility model only takes selective gold plating as an example, and it is obvious to those skilled in the art that selective plating can include but is not limited to selective copper plating, gold plating, silver plating and tin plating) and the like. These production process equipment consumes a lot of energy, consumes a large amount of water resources and chemical reagents, produces a large amount of chemical waste liquid that needs to be purified, and has low production efficiency and high manufacturing cost, and inevitably pollutes the environment.

[0003] In order to solve the above-mentioned shortcomings in the manufacturing process of the circuit board in the prior art, the industry peers have proposed a technical scheme of using traditional printing ink technology to make circuit etching ink layer, solder mask ink layer and anti-plating layer, so as to reduce energy consumption and pollution.

[0004] In the above-mentioned manner, due to the different characteristics and formulations of the ink, different ink formulations need to be replaced during different processes, but due to the single function of the equipment at present, the time required for switching the ink formulation and the non-production downtime are both long when producing different types of processes, and the production efficiency is still low. UTILITY MODEL CONTENTS

[0005] In order to solve the above-mentioned technical problems, the utility model provides a multifunctional printed circuit board automatic printing equipment, which can quickly switch the ink formulation required in the preparation process of the circuit board, reduce the non-production downtime and improve the production efficiency.

[0006] The utility model provides a multifunctional printed circuit board automatic printing equipment, including printing module and feeding module, the printing module includes ink box, ink switching device and spray head, the ink box has a plurality of, and it is used for storing different inks, the ink box passes through ink switching device and spray head intercommunication, ink switching device selects different ink box and spray head intercommunication, and the outflow of the ink in the ink box is controlled, the feeding module is used for sending the circuit board to the position corresponding with the spray head.

[0007] Further, the multifunctional printed circuit board automatic printing equipment further includes a bracket, the feeding module is reciprocatingly arranged on the bracket along a first direction, and the printing module is reciprocatingly arranged on the bracket along a second direction and a third direction.

[0008] Further, the ink switching device comprises a control valve, liquid inlets and a mixing chamber, and liquid outlets, wherein each of the liquid inlets is connected to one of the ink cartridges at one end and to the mixing chamber at the other end, and each of the liquid outlets is connected to one of the nozzles at one end and to the mixing chamber at the other end, and the control valve controls the opening and closing and the opening degree of each of the liquid inlets.

[0009] Further, the ink switching device is further provided with an ink outlet for recovering ink, which is in communication with the mixing chamber.

[0010] Further, the ink switching device is further provided with an air inlet for injecting air flow into the mixing chamber, and a cleaning liquid inlet for injecting cleaning liquid into the mixing chamber.

[0011] Further, the feeding module comprises a second base plate, a second support plate and an adsorption device, wherein the adsorption device is arranged on the second base plate, the second support plate is arranged on the adsorption device, the second support plate is provided with a through hole, and the adsorption device adsorbs the circuit board on the second support plate through the through hole.

[0012] Further, the feeding module further comprises a positioning and fixing device, wherein the positioning and fixing device comprises a chuck, a first driving source and a second driving source, the second support plate is provided with a guide slot, the first driving source and the second driving source are arranged on the first base plate, the chuck is arranged on the first driving source, the first driving source drives the chuck to move along the guide slot, the second driving source is connected to the chuck and drives the chuck to clamp the circuit board between the chuck and the second support plate.

[0013] Further, the multifunctional automatic printing circuit board printing equipment further comprises a cleaning module, wherein the cleaning module comprises a waste liquid recovery tank, a wiping head, a third driving source and a waste liquid recovery box, the wiping head is arranged in the waste liquid recovery tank, and the waste liquid recovery tank is provided with a recovery hole in communication with the waste liquid recovery box.

[0014] Further, the printing module further comprises a position detection device for detecting the position of the circuit board.

[0015] Further, the printing module is further provided with a curing device.

[0016] In summary, the multifunctional automatic inkjet printing equipment for printed circuit boards provided by this utility model can switch the inks required for different processes and control the amount of ink used through an ink switching device, quickly switching the ink formula required in the circuit board preparation process, reducing non-production downtime, and improving production efficiency.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 The diagram shown is an isometric view of the multifunctional automatic inkjet printing equipment for printed circuit boards provided in this embodiment of the present invention.

[0019] Figure 2 As shown Figure 1 A front view structural diagram of a multi-functional automatic inkjet printing equipment for printed circuit boards.

[0020] Figure 3 As shown Figure 1 A first-person view of the axonometric structure of the inkjet printing module.

[0021] Figure 4 As shown Figure 1 A second-view axial side view of the central inkjet printing module.

[0022] Figure 5 As shown Figure 1 A schematic diagram of the axial structure of the inkjet printing module after the protective plate has been removed.

[0023] Figure 6 As shown Figure 3 A schematic diagram of the isometric structure of the ink switching device.

[0024] Figure 7 As shown Figure 3 A front view of the ink switching device.

[0025] Figure 8 As shown Figure 7 Schematic diagram of the cross-sectional structure in the VIII-VIII direction.

[0026] Figure 9 As shown Figure 1 A schematic diagram of the isometric structure of the feeding module.

[0027] Figure 10 As shown Figure 9 A schematic diagram of the axonal structure of the feeding module after removing the support plate.

[0028] Figure 11 As shown in Figure 1 The schematic view of the shaft side structure of the cleaning module. DETAILED DESCRIPTION

[0029] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes and the functions, the following will be described in detail in combination with the preferred embodiments and the drawings.

[0030] The utility model provides a kind of multifunctional printed circuit board automatic printing equipment, which can quickly switch the ink formula required in the process of preparing circuit board, reduce non-production downtime, improve production efficiency.

[0031] It should be noted that, in order to facilitate the understanding of the overall structure of the equipment, and to reduce the complexity of the graphics, the pipelines connected between various components for gas or liquid flow are omitted in the drawings.

[0032] As Figures 1 to 5 The utility model embodiment provides multifunctional printed circuit board automatic printing equipment including printing module 10 and feeding module 20. The printing module 10 includes ink cartridge 11, ink switching device 12 and nozzle 13, ink cartridge 11 has multiple, and is used to store different inks. Ink cartridge 11 is communicated with nozzle 13 through ink switching device 12, ink switching device 12 selects different ink cartridge 11 and is communicated with nozzle 13, and the outflow of ink in ink cartridge 11 is controlled. The feeding module 20 is used to send the circuit board to be printed to the position corresponding to nozzle 13.

[0033] When using the multifunctional printed circuit board automatic printing equipment provided by the utility model, the circuit board to be printed can be placed on the feeding module 20 first, and the feeding module 20 sends the circuit board to be printed to the position corresponding to the nozzle 13, such as the lower side of the nozzle 13. Then, according to the process requirements, the ink switching device 12 switches different ink cartridges 11 connected with the nozzle 13, and controls the amount of ink flowing out of the ink cartridge 11 according to the process requirements, so that the nozzle 13 can spray different types and amounts of ink according to the requirements, and print the circuit board. After printing is completed, the feeding module 20 drives the printed circuit board into the next process to complete the process on the multifunctional printed circuit board automatic printing equipment.

[0034] For example, if the circuit board needs to be sprayed with resist ink, the ink switching device 12 can be controlled to connect the ink cartridge 11 storing the resist ink to the nozzle 13, and the amount of resist ink sprayed can be controlled according to the process requirements; if the circuit board needs to be sprayed with solder resist, the ink switching device 12 can be controlled to connect the ink cartridge 11 storing the solder resist to the nozzle 13, and the amount of solder resist sprayed can be controlled according to the process requirements; if the circuit board needs to be sprayed with select ink, the ink switching device 12 can be controlled to connect the ink cartridge 11 storing the select ink to the nozzle 13, and the amount of select ink sprayed can be controlled according to the process requirements; if the circuit board needs to be sprayed with character ink, the ink switching device 12 can be controlled to connect the ink cartridge 11 storing the character ink to the nozzle 13, and the amount of character ink sprayed can be controlled according to the process requirements.

[0035] Therefore, in the present embodiment, by providing the printing module 10 and the feeding module 20, the ink formula required in the process of preparing the circuit board can be quickly switched, the non-production downtime is reduced, and the production efficiency is improved.

[0036] Further, the device can further include a control module (not shown in the figure) to automatically control each module in the device.

[0037] Further, in the present embodiment, the multifunctional automatic printing circuit board spraying device further includes a support 30, and the feeding module 20 is movably arranged on the support 30 in a first direction, i.e., a direction perpendicular to the paper surface as shown in FIG. 4. Figure 2 The printing module 10 can be movably arranged on the support 30 in a second direction, i.e., a left-right direction of the paper surface as shown in FIG. 5, and a third direction, i.e., an up-down direction of the paper surface as shown in FIG. 6. Figure 2 Figure 2 The printing module 10 can be movably arranged on the support 30 in a second direction, i.e., a left-right direction of the paper surface as shown in FIG. 5, and a third direction, i.e., an up-down direction of the paper surface as shown in FIG. 6.

[0038] Through the above structure, the printing module 10 can better complete the spraying of each position on the circuit board according to the process requirements.

[0039] Further, in the present embodiment, the printing module 10 includes a first base plate 14 and a first support plate 15. The first base plate 14 is movably arranged on the support 30 in the second direction; the first support plate 15 is movably arranged on the first base plate 14 in the third direction. The ink cartridge 11, the ink switching device 12, and the nozzle 13 are arranged on the first support plate 15.

[0040] ​Further, in order to protect the nozzles 13, a protective plate 161 is arranged outside the nozzles 13. In order to detect the position of the target or the positioning mark on the printed circuit board, a position detecting device 162, such as a visual detecting module, is arranged on the first support plate 15. In order to facilitate the curing of the ink on the circuit board, a curing device 163, such as an ultraviolet curing device, is arranged on the first support plate 15, such as on the bottom of the first support plate 15.

[0041] Please continue to refer to Figures 6 to 8 The ink switching device 12 comprises a control valve 121, a plurality of ink inlets 122, a mixing chamber 123 and a plurality of ink outlets 124. Each of the ink inlets 122 is connected to one of the ink cartridges 11 and is connected to the mixing chamber 123. That is, the inks in the plurality of ink cartridges 11 can enter the mixing chamber 123 through the respective pipelines and the ink inlets 122 for mixing. Each of the ink outlets 124 is connected to one of the nozzles 13 and is connected to the mixing chamber 123. That is, the mixed ink in the mixing chamber 123 can be sprayed on the circuit board through the plurality of nozzles 13. The control valve 121, such as an electromagnetic valve, controls the opening and closing and the opening degree of each of the ink inlets 122. It can be understood that the control valve 121 can be multiple, and each electromagnetic valve corresponds to one of the ink inlets 122.

[0042] It should be noted that in the present embodiment, the opening and closing of the ink outlets 124 can also be controlled by the control valve. In other embodiments, the opening and closing of the nozzles 13 can also be controlled to control the ejection of the mixed ink.

[0043] When the inks required for the process are switched by the ink switching device 12, the opening and closing and the opening degree of the ink inlets 122 corresponding to the process can be controlled by the control valve 121, at this time, the selected ink can enter the mixing chamber 123 for mixing, and the mixed ink can reach the nozzles 13 through the ink outlets 124 to spray on the circuit board.

[0044] Further, in the present embodiment, the ink switching device 12 can also comprise an ink outlet 125, which is connected to the mixing chamber 123, and the ink outlet 125 can be connected to an ink recycling box for recycling the original ink when the process is switched.

[0045] Further, the ink switching device 12 can also comprise an air inlet 126 and a cleaning liquid inlet 127, which are connected to the mixing chamber 123, and through the air inlet 126, air flow can be injected into the mixing chamber 123 to blow the inner walls of the ink inlets 122, the ink outlets 124, the nozzles 13 and the mixing chamber 123, so as to facilitate the cleaning of the residual ink.

[0046] The cleaning liquid inlet 127 can be used to inject cleaning liquid into the mixing chamber 123, so as to clean the ink in the mixing chamber 123 more thoroughly, and prevent the ink used in the previous process from contaminating the next process.

[0047] It can be understood that the opening and closing of the ink outlet 125, the air inlet 126 and the cleaning liquid inlet 127 are also controlled by the control valve 121.

[0048] When the process is switched, first, the control valve 121 can be used to open the ink outlet 125, so that the ink in the mixing chamber 123 flows out of the ink outlet 125; second, the air inlet 126 is opened, and the airflow flows into the liquid inlet 122, the liquid outlet 124 and the inner wall of the mixing chamber 123, so that the residual ink is discharged from the ink outlet 125; at the same time, part of the airflow enters the nozzle 13 from the liquid outlet 124, and the residual ink in the nozzle 13 is sprayed out; third, the control valve 121 closes the ink outlet 125, and opens the cleaning liquid inlet 127, so that the cleaning liquid enters the mixing chamber 123 to clean the mixing chamber 123, and then the cleaning liquid can flow out of the liquid outlet 124 and the nozzle 13, so as to complete the cleaning of the ink switching device 12.

[0049] Please refer to Figure 1 , Figure 9 and Figure 10 In the embodiment, the feeding module 20 includes a second base plate 21, a second support plate 22 and an adsorption device 23. The adsorption device 23 is arranged on the second base plate 21, and the second support plate 22 is arranged on the adsorption device 23. The second support plate 22 is provided with a through hole (not shown in the figure), and the adsorption device 23 can adsorb the circuit board placed on the second support plate 22 through the through hole.

[0050] In order to better position and fix the circuit board, the feeding module 20 further includes a positioning and fixing device 24. The positioning and fixing device 24 includes a chuck 241, a first driving source 242 and a second driving source 243. The second support plate 22 is provided with a guide groove 221. The first driving source 242 and the second driving source 243 are arranged on the first base plate 14, the chuck 241 is arranged on the first driving source 242, and the first driving source 242 drives the chuck 241 to move along the guide groove 221. The second driving source 243 is connected with the chuck 241, and drives the chuck 241 to clamp the circuit board between the chuck 241 and the second support plate 22.

[0051] When positioning, the circuit board is placed on the second support plate 22, then the first driving source 242 drives the chuck 241 to move on the guide groove 221, so that the circuit board is pushed by the side surface of the chuck 241 to reach the set position, then the second driving source 243 drives the chuck 241 to move downward, so that the circuit board is clamped between the chuck 241 and the second support plate 22, finally the adsorption device 23 is started to adsorb the circuit board.

[0052] Please continue to refer to Figure 1 and Figure 11 The multifunctional automatic printing equipment for printed circuit board further comprises a cleaning module 40, the cleaning module 40 comprises a waste liquid recovery tank 41, a wiping head 42, a third power source 43 and a waste liquid recovery box 44. The wiping head 42 is arranged in the waste liquid recovery tank 41, and the waste liquid recovery tank 41 is provided with a recovery hole 411 in communication with the waste liquid recovery box 44.

[0053] When the process is switched, the third power source 43 can drive the waste liquid recovery tank 41 to move below the nozzle 13, the printing module 10 is moved along the third direction, so that the nozzle 13 is abutted on the wiping head 42, the printing module 10 is moved along the second direction, so that the nozzle 13 reciprocates relative to the wiping head 42, so that the wiping head 42 wipes the nozzle 13, and the ink dripping after wiping can fall into the waste liquid recovery tank 41 and enter the waste liquid recovery box 44 through the recovery hole 411.

[0054] It should be noted that when the cleaning liquid is used to switch the ink switching device 12, the waste liquid recovery tank 41 can also be moved below the nozzle 13 to collect the cleaning liquid.

[0055] In summary, the multifunctional automatic printing equipment for printed circuit board can switch the ink required by different processes through the ink switching device 12, control the amount of ink, quickly switch the ink formula required in the circuit board preparation process, reduce the non-production downtime and improve the production efficiency.

[0056] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has been disclosed as above, however, it is not used to limit the utility model, any skilled person in the art can make some changes or modifications to the equivalent embodiments with the disclosed technical content without departing from the technical solution range of the utility model, as long as it does not depart from the technical solution content of the utility model, any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model, all still belong to the range of the technical solution of the utility model.

Claims

1. A multifunctional automatic inkjet printing device for printed circuit boards, characterized in that: The multifunctional automatic printing equipment for printed circuit board comprises a feeding module and a printing module, the printing module comprises ink cartridges, an ink switching device and a nozzle, the ink cartridges are multiple and used for storing different inks, the ink cartridges are communicated with the nozzle through the ink switching device, the ink switching device selects different ink cartridges to be communicated with the nozzle and controls the flow of the ink in the ink cartridges, and the feeding module is used for feeding the printed circuit board to a position corresponding to the nozzle.

2. The multi-functional printed wiring board automatic jet printing apparatus according to claim 1, characterized by: The multifunctional automatic printing equipment for printed circuit board further comprises a support, the feeding module is arranged on the support and can reciprocate along a first direction, and the printing module is arranged on the support and can reciprocate along a second direction and a third direction.

3. The multi-functional printed wiring board automatic jet printing apparatus according to claim 2, wherein: The ink switching device comprises control valves, liquid inlets, a mixing cavity and liquid outlets, the liquid inlets and the liquid outlets are multiple, one end of each liquid inlet is connected with one ink cartridge, the other end of each liquid inlet is connected with the mixing cavity, one end of each liquid outlet is connected with one nozzle, the other end of each liquid outlet is connected with the mixing cavity, and the control valves control the opening and closing and the opening degree of each liquid inlet.

4. The multi-functional printed wiring board automatic jet printing apparatus according to claim 3, wherein: The ink switching device is further provided with ink outlets for recovering the ink, and the ink outlets are communicated with the mixing cavity.

5. The multi-functional printed wiring board automatic jet printing apparatus according to claim 4, wherein: The ink switching device is further provided with air inlets for injecting air flow into the mixing cavity and cleaning liquid inlets for injecting cleaning liquid into the mixing cavity.

6. The multi-functional printed wiring board automatic jet printing apparatus according to claim 1, wherein: The feeding module comprises a second base plate, a second support plate and an adsorption device, the adsorption device is arranged on the second base plate, the second support plate is arranged on the adsorption device, the second support plate is provided with a through hole, and the adsorption device adsorbs the printed circuit board on the second support plate through the through hole.

7. The multi-functional printed wiring board automatic jet printing apparatus according to claim 6, wherein: The feeding module further comprises a positioning and fixing device, the positioning and fixing device comprises a chuck, a first driving source and a second driving source, the second support plate is provided with a guide groove, the first driving source and the second driving source are arranged on a first base plate, the chuck is arranged on the first driving source, the first driving source drives the chuck to move along the guide groove, the second driving source is connected with the chuck and drives the chuck to clamp the printed circuit board between the chuck and the second support plate.

8. The multi-functional printed wiring board automatic jet printing apparatus according to claim 1, characterized by: The multifunctional automatic printing equipment for printed circuit board further comprises a cleaning module, the cleaning module comprises a waste liquid recovery tank, a wiping head, a third driving source and a waste liquid recovery box, the wiping head is arranged in the waste liquid recovery tank, and the waste liquid recovery tank is provided with a recovery hole communicated with the waste liquid recovery box.

9. The multi-functional printed wiring board automatic jet printing apparatus according to claim 1, characterized by: The printing module further comprises a position detection device for detecting the position of the printed circuit board.

10. The multi-functional printed wiring board automatic jet printing apparatus according to claim 1, characterized by: The printing module is further provided with a curing device.

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