Printed circuit board (PCB) character ink jet printer

Abstract

The utility model relates to the technical field of PCB processing, and discloses a PCB character ink jet printer, which comprises a shell, the shell is a hollow rectangular box with an open front wall surface, a servo motor and a processing structure are arranged on the rear wall surface of the shell, the processing structure is arranged in a cavity of the shell, the processing structure can improve the working efficiency of the device, and the working efficiency of the device is improved. The machining structure comprises a feeding groove, a guide roller, clamping plates, inclined plates and a push plate, the feeding groove is formed in the bottom of the front wall face of the shell, the guide roller is rotationally connected into the feeding groove, the clamping plates are symmetrically and movably connected into a cavity of the shell, the inclined plates are symmetrically and fixedly connected to the front wall face and the rear wall face of the clamping plates, and the push plate is slidably connected to the bottom in the cavity of the shell. And the processing structure can automatically align the position of the PCB needing ink jetting with the nozzle and can automatically push the PCB out of the shell cavity after ink jetting is completed, so that the PCB does not need to be specially aligned with the nozzle when the ink jetting device is used.

Description

Technical Field

[0001] The utility model belongs to the field of PCB board processing, and specifically relates to a PCB board character inkjet printer. Background Art

[0002] A PCB board, that is, a printed circuit board or printed wiring board, is a power connection provider for electronic components and also a carrier for electrical connection of electronic components.

[0003] The prior art (publication number: CN214419957U) discloses a character inkjet printer for PCB board processing. An installation groove is provided at the upper end of the workbench. A spraying chamber is fixedly connected inside the installation groove. A hydraulic cylinder is fixedly connected to the upper end of the spraying chamber. The output end of the hydraulic cylinder penetrates the outer wall of the spraying chamber and extends into the interior. A push plate is fixedly connected to the output end of the hydraulic cylinder. A limiting plate is fixedly connected to the lower end of the push plate.

[0004] The prior art places the PCB board to be inkjet printed in the device and then performs inkjet processing on it. Although the prior art can perform inkjet processing, the position of the PCB board manually placed during use cannot be accurately aligned with the nozzle every time, and after the PCB board processing is completed, it also needs to be manually taken out every time. This method not only increases the pressure on workers, but also reduces work efficiency due to worker fatigue during long-term use.

[0005] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0006] In order to solve the technical problems of high working pressure and reduced work efficiency after long-term work in the above prior art, the basic concept of the technical solution adopted by the present utility model is:

[0007] A PCB board character inkjet printer includes:

[0008] A housing, the housing is a hollow rectangular box with an open front wall surface. A servo motor is installed on the rear wall surface of the housing. An ink storage tank is fixedly connected to the top of the housing. A support is fixedly connected to the inner wall surface of the cavity of the housing. A nozzle is fixedly connected to the bottom of the support;

[0009] A processing structure is arranged inside the cavity of the housing. The processing structure can improve the working efficiency of the device. The processing structure includes: a feeding groove, guiding rollers, clamping plates, inclined plates, and a pushing plate. The feeding groove is opened at the bottom of the front wall surface of the housing. The guiding rollers are rotatably connected inside the feeding groove. The clamping plates are symmetrically and movably connected inside the cavity of the housing. The inclined plates are symmetrically fixedly connected to the front and rear wall surfaces of the clamping plates. The pushing plate is slidably connected to the bottom inside the cavity of the housing. The symmetric clamping plates are located at the bottom of the support.

[0010] As a preferred embodiment of the present utility model, the feeding trough is in an inclined plane shape, the guiding roller is in a cylindrical shape, the guiding roller is located at the highest point of the inclined plane of the feeding trough, and the arc surface of the guiding roller can be flush with the bottom of the inner cavity of the housing.

[0011] As a preferred embodiment of the present utility model, the clamping plate is in a rectangular rod shape, the inclined plates are symmetrically inclined on the front and rear wall surfaces of the clamping plate, and symmetric inclined plates are provided on the wall surfaces of each clamping plate.

[0012] As a preferred embodiment of the present utility model, the processing structure further includes side boxes, a resilient plate and connecting rods. The side boxes are symmetrically and fixedly connected to both sides inside the cavity of the housing. The inside of the side boxes is hollow. The resilient plate is elastically connected to the inside of the side boxes through springs. The mutually facing wall surfaces of the symmetric side boxes have openings. The connecting rods slide in the openings on the side wall surfaces of the side boxes. The connecting rods can also be symmetrically and fixedly connected to the side wall surfaces of the resilient plate. The wall surfaces of the symmetric connecting rods on each side are fixedly connected to the side wall surfaces of the clamping plates on each side.

[0013] As a preferred embodiment of the present utility model, the processing structure further includes a driving screw, a driving plate, a push rod, a linkage block, a friction-reducing wheel and a cleaning cloth. The driving screw is rotatably connected to the rear wall surface inside the cavity of the housing. The driving plate is slidably connected to the bottom inside the cavity of the housing. The push rods are symmetrically and fixedly connected to the front wall surface of the driving plate. The rear wall surface of the push plate is fixedly connected to the front wall surfaces of the symmetric push rods. The linkage blocks are symmetrically and fixedly connected to the two side wall surfaces of the push plate. The friction-reducing wheel is rotatably connected to the wall surface of the linkage block. The cleaning cloth is fixedly connected to the rear wall surface of the push plate.

[0014] As a preferred embodiment of the present utility model, the driving screw is in a screw shape, the driving screw can pass through the wall surface of the driving plate, and the wall surface of the driving plate through which the driving screw passes is threadedly connected. The push plate is located between the rear wall surfaces of the symmetric clamping plates.

[0015] As a preferred embodiment of the present utility model, the linkage block is in a right-angled trapezoidal block shape, the friction-reducing wheel is in a cylindrical shape, the friction-reducing wheel is rotatably connected to the inclined surface of the linkage block, the same friction-reducing wheels are provided on the wall surfaces of each linkage block, the inclined surfaces of each linkage block can be parallel to the inclined surfaces of the rear inclined plates, and the cleaning cloth is located on the rear wall surface of the push plate between the symmetric push rods.

[0016] The present utility model has the following beneficial effects compared with the prior art:

[0017] 1. By providing the processing structure, the PCB board to be inkjet printed can be automatically aligned with the nozzle in position and can be automatically pushed out of the inner cavity of the housing after inkjet printing is completed, so that it is not necessary to specifically align the PCB board with the nozzle when using this solution. Because this solution has an automatic discharging function, a large amount of working pressure of workers can be reduced. Therefore, compared with the prior art, the working pressure of this solution is smaller, and high working efficiency can still be achieved after long-term work.

[0018] 2. By setting up the friction-reducing wheel, it can roll along the inclined surface of the inclined plate when the push plate pushes the ink-jet completed PCB board out of the outer shell cavity, thereby effectively improving the coherence and stability of pushing the inclined plate, and thus enhancing the stability of the device during operation. And the cleaning cloth can automatically clean the wall surface of the outer shell when moving along with the push plate, thus eliminating the need for workers to clean the ink stains.

[0019] The following will further describe in detail the specific implementation manners of the present utility model in conjunction with the accompanying drawings. Description of the Drawings

[0020] In the drawings:

[0021] Figure 1 is the three-dimensional view of the present utility model;

[0022] Figure 2 is the perspective view inside the outer shell of the present utility model;

[0023] Figure 3 is the exploded view of the structure inside the side box of the present utility model;

[0024] Figure 4 is the exploded schematic diagram of the push plate and the driving screw of the present utility model;

[0025] Figure 5 is the three-dimensional view of the wall surface structure of the push plate of the present utility model.

[0026] In the figure: 20, outer shell; 21, ink storage tank; 22, bracket; 30, feeding groove; 31, guiding roller; 32, side box; 33, rebounding plate; 34, connecting rod; 35, clamping plate; 36, inclined plate; 40, driving screw; 41, driving plate; 42, push rod; 43, push plate; 44, linkage block; 45, friction-reducing wheel; 46, cleaning cloth. Specific Implementation Manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model.

[0028] Such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown in the figure, a PCB board character inkjet printer has a housing 20. The housing 20 is a hollow rectangular box with an open front wall. A servo motor is installed on the rear wall of the housing 20. A ink storage tank 21 is fixedly connected to the top of the housing 20. A bracket 22 is fixedly connected to the inner wall surface of the cavity of the housing 20. A nozzle is fixedly connected to the bottom of the bracket 22. The cavity of the ink storage tank 21 can hold the ink for inkjet printing. The servo motor is electrically connected to the corresponding power supply. The ink in the cavity of the ink storage tank 21 can be ejected downward through the nozzle at the bottom of the bracket 22. This is the existing technology, so it will not be elaborated here.

[0029] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown in the figure, a processing structure is provided inside the cavity of the housing 20. The processing structure can improve the working efficiency of the device. The processing structure includes: a feeding groove 30, a guiding roller 31, clamping plates 35, inclined plates 36 and a pushing plate 43. The feeding groove 30 is opened at the bottom of the front wall of the housing 20. The guiding roller 31 is rotatably connected inside the feeding groove 30. The clamping plates 35 are symmetrically and movably connected inside the cavity of the housing 20. The inclined plates 36 are symmetrically fixedly connected to the front and rear walls of the clamping plates 35. The pushing plate 43 is slidably connected to the bottom inside the cavity of the housing 20. The symmetrical clamping plates 35 are located at the bottom of the bracket 22.

[0030] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the feed chute 30 is inclined, the guide roller 31 is cylindrical, the guide roller 31 is located at the highest point of the inclined surface of the feed chute 30, and the arc surface of the guide roller 31 can be flush with the bottom of the cavity of the outer shell 20. The clamping plate 35 is a rectangular rod, and the inclined plates 36 are symmetrically inclined on the front and rear wall surfaces of the clamping plate 35. The wall surfaces of each clamping plate 35 are provided with symmetric inclined plates 36. The processing structure further includes side boxes 32, spring-back plates 33 and connecting rods 34. The side boxes 32 are symmetrically and fixedly connected to both sides of the cavity of the outer shell 20. The cavities of the side boxes 32 are hollow. The spring-back plates 33 are elastically connected to the cavities of the side boxes 32 through springs. The wall surfaces of the symmetric side boxes 32 facing each other have openings. The connecting rods 34 slide in the openings on the side wall surfaces of the side boxes 32. The connecting rods 34 can also be symmetrically and fixedly connected to the side wall surfaces of the spring-back plates 33. The wall surfaces of the symmetric connecting rods 34 on each side are fixedly connected to the side wall surfaces of the clamping plates 35 on each side. The processing structure further includes a driving screw 40, a driving plate 41, a push rod 42, a linkage block 44, an anti-friction wheel 45 and a cleaning cloth 46. The driving screw 40 is rotatably connected to the rear wall surface of the cavity of the outer shell 20. The driving plate 41 is slidably connected to the bottom of the cavity of the outer shell 20. The push rods 42 are symmetrically and fixedly connected to the front wall surface of the driving plate 41. The rear wall surface of the push plate 43 is fixedly connected to the front wall surfaces of the symmetric push rods 42. The linkage blocks 44 are symmetrically and fixedly connected to the side wall surfaces of the push plate 43. The anti-friction wheels 45 are rotatably connected to the wall surfaces of the linkage blocks 44. The cleaning cloth 46 is fixedly connected to the rear wall surface of the push plate 43. The driving screw 40 is in the shape of a screw. The driving screw 40 can pass through the wall surface of the driving plate 41. The wall surface through which the driving screw 40 passes through the driving plate 41 is connected by a thread. The push plate 43 is located between the rear wall surfaces of the symmetric clamping plates 35;

[0031] When in use, the PCB board to be inkjetted is slid along the feed slot 30 toward the cavity of the shell 20 and placed. When the PCB board is between the symmetrical clamps 35, the PCB board can contact the arc surface of the guide roller 31 when moving along the feed slot 30. When the PCB board enters the cavity of the shell 20 along the feed slot 30 and is between the symmetrical clamps 35, it will first move along the inclined surface of the symmetrical inclined plate 36 in front to between the symmetrical clamps 35. When the clamps 35 clamp the PCB board, the springs of the rebound plates 33 in the cavity of the side box 32 will automatically adapt to the dimensions of both sides of the PCB board and push the PCB board in opposite directions. At this time, the nozzle at the bottom of the bracket 22 can be controlled to spray the ink in the cavity of the ink storage tank 21 toward the top of the PCB board. After the inkjet is completed, the servo motor on the rear wall of the shell 20 is controlled to be turned on. The servo motor can drive the driving screw 40 to rotate in the cavity of the shell 20 when it is turned on. The driving screw 40 can be threadedly connected with the driving plate 41 when rotating to bring The driving plate 41 is driven to move forward, and the driving plate 41 can drive the push rod 42, the push plate 43, the linkage block 44, the wear-reducing wheel 45 and the cleaning cloth 46 to move forward at the same time when moving. When the push plate 43 moves forward, it will drive the linkage block 44 to push the rear symmetrical inclined plates 36 along the inclined surface of the inclined plates 36 to contact the clamping plates 35 to both sides, so that the clamping plates 35 no longer clamp the PCB board, and when the push plate 43 moves forward, it will contact the PCB board that has been ink-jetted to the front, so that the PCB board moves from the cavity of the shell 20 toward the opening of the front wall of the shell 20, thereby completing the discharge of the PCB board, and then the next PCB board that needs to be ink-jetted is placed in the same way between the symmetrical clamping plates 35 in the cavity of the shell 20 for clamping and fixing. When placing the PCB board, the servo motor will drive the driving screw 40 to rotate in the opposite direction, thereby driving the driving plate 41 to return to its original position. After the PCB board is ink-jetted, the push plate 43 will push the PCB board out of the cavity of the shell 20 in the same way, thus reciprocating;

[0032] In summary, by setting up the processing structure, the position of the PCB board that needs to be inkjetted can be automatically aligned with the nozzle, and it can be automatically pushed out of the cavity of the shell 20 after the inkjet is completed, so that the present solution does not need to be specially aligned with the PCB board and the nozzle when in use. Because the present solution has an automatic discharge function, it can reduce a lot of work pressure on workers. Therefore, compared with the prior art, the work pressure of the present solution is lower, and it can still have high work efficiency after working for a long time.

[0033] like Figure 2 , Figure 4 and Figure 5As shown, the linkage block 44 is in the shape of a right trapezoidal block, and the anti-friction wheel 45 is cylindrical. The anti-friction wheel 45 is rotatably connected to the inclined surface of the linkage block 44. The same anti-friction wheel 45 is provided on the wall surface of each linkage block 44. The inclined surface of each linkage block 44 can be parallel to the inclined surface of the rear inclined plate 36. The cleaning cloth 46 is located on the rear wall surface of the push plate 43 between the symmetrical push rods 42;

[0034] During specific use, when the push plate 43 drives the linkage block 44 to move, the anti-friction wheel 45 can roll on the inclined surface of the inclined plate 36, and the cleaning cloth 46 can wipe the bottom of the cavity of the outer shell 20 along the way when moving with the push plate 43;

[0035] In summary, by setting the anti-friction wheel 45 to roll along the inclined surface of the inclined plate 36 when the push plate 43 pushes the ink-jet completed PCB board out of the cavity of the outer shell 20, the coherence and stability of pushing the inclined plate 36 are effectively improved, thereby improving the stability of the device during operation. And the cleaning cloth 46 can automatically clean the wall surface of the outer shell 20 when moving with the push plate 43, thus eliminating the need for workers to clean the ink stains.

[0036] Working principle: Slide the PCB board to be inkjet-printed along the feeding groove 30 into the cavity of the housing 20. It is okay when the PCB board is between the symmetrical clamping plates 35. The PCB board can contact the arc surface of the guiding roller 31 when moving along the feeding groove 30. When the PCB board enters the cavity of the housing 20 along the feeding groove 30 and is between the symmetrical clamping plates 35, it will first move along the inclined surfaces of the front symmetrical inclined plates 36 to between the symmetrical clamping plates 35. When the clamping plates 35 clamp the PCB board, the spring in the side box 32 of the rebounding plate 33 will automatically adapt to the two-side dimensions of the PCB board and press the PCB board against each other in opposite directions. At this time, the nozzle at the bottom of the support 22 can be controlled to spray the ink in the cavity of the ink storage tank 21 onto the top of the PCB board for inkjet processing. After the inkjet is completed, the servo motor on the rear wall surface of the housing 20 is controlled to start. The servo motor can drive the driving screw 40 to rotate in the cavity of the housing 20 when starting. The driving screw 40 can drive the driving plate 41 to move forward when rotating by being threadedly connected to the driving plate 41. The driving plate 41 can drive the push rod 42, the push plate 43, the linkage block 44, the anti-friction wheel 45 and the cleaning cloth 46 to move forward simultaneously when moving. When the push plate 43 moves forward, it will drive the linkage block 44 to press the clamping plates 35 against both sides along the inclined surfaces of the rear symmetrical inclined plates 36, so that the clamping plates 35 no longer clamp the PCB board. And when the push plate 43 moves forward, it will press the inkjet-completed PCB board forward so that the PCB board moves from the cavity of the housing 20 to the opening of the front wall surface of the housing 20 to complete the discharge of the PCB board. Then, the next PCB board to be inkjet-printed is placed between the symmetrical clamping plates 35 in the cavity of the housing 20 in the same way for clamping and fixing. When placing the PCB board, the servo motor will drive the driving screw 40 to rotate in the reverse direction to drive the driving plate 41 to return to its original position. After the inkjet of the PCB board is completed, the push plate 43 ejects the PCB board from the cavity of the housing 20 in the same way. And so on.

[0037] It can be understood that the present utility model is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A PCB board text inkjet printer, characterized in that, Comprising: A housing (20), the housing (20) being a hollow rectangular box with an open front wall surface. A servo motor is installed on the rear wall surface of the housing (20). A ink storage tank (21) is fixedly connected to the top of the housing (20). A bracket (22) is fixedly connected to the inner wall surface of the cavity of the housing (20), and a nozzle is fixedly connected to the bottom of the bracket (22). A processing structure, the processing structure is arranged in the cavity of the housing (20), and the processing structure can improve the working efficiency of the device. The processing structure includes: a feeding groove (30), a guiding roller (31), clamping plates (35), inclined plates (36) and a pushing plate (43). The feeding groove (30) is opened at the bottom of the front wall surface of the housing (20). The guiding roller (31) is rotatably connected in the feeding groove (30). The clamping plates (35) are symmetrically and movably connected in the cavity of the housing (20). The inclined plates (36) are symmetrically fixedly connected to the front and rear wall surfaces of the clamping plates (35). The pushing plate (43) is slidably connected to the bottom of the cavity of the housing (20), and the symmetric clamping plates (35) are located at the bottom of the bracket (22).

2. The PCB board character inkjet printer according to claim 1, wherein The feeding groove (30) is in an inclined shape, the guiding roller (31) is in a cylindrical shape, the guiding roller (31) is located at the highest point of the inclined surface of the feeding groove (30), and the arc surface of the guiding roller (31) can be flush with the bottom of the cavity of the housing (20).

3. A PCB board character inkjet printer according to claim 1, characterized in that, The clamping plate (35) is in a rectangular rod shape, and the inclined plates (36) are symmetrically inclined on the front and rear wall surfaces of the clamping plate (35), and symmetric inclined plates (36) are provided on the wall surface of each clamping plate (35).

4. A PCB board character inkjet printer according to claim 1, characterized in that, The processing structure further includes side boxes (32), resilient plates (33) and connecting rods (34). The side boxes (32) are symmetrically fixedly connected to both sides of the cavity of the housing (20). The cavities of the side boxes (32) are hollow. The resilient plates (33) are elastically connected to the cavities of the side boxes (32) through springs. The mutually facing wall surfaces of the symmetric side boxes (32) have openings. The connecting rods (34) slide in the openings on the side wall surfaces of the side boxes (32), and the connecting rods (34) can also be symmetrically fixedly connected to the side wall surfaces of the resilient plates (33). The wall surfaces of the symmetric connecting rods (34) on each side are fixedly connected to the side wall surfaces of the clamping plates (35) on each side.

5. A PCB board character inkjet printer according to claim 4, characterized in that, The processing structure further includes a driving screw (40), a driving plate (41), a push rod (42), a linkage block (44), a wear-reducing wheel (45) and a cleaning cloth (46). The driving screw (40) is rotatably connected to the rear wall surface of the cavity of the housing (20). The driving plate (41) is slidably connected to the bottom of the cavity of the housing (20). The push rods (42) are symmetrically fixedly connected to the front wall surface of the driving plate (41). The rear wall surface of the pushing plate (43) is fixedly connected to the front wall surfaces of the symmetric push rods (42). The linkage blocks (44) are symmetrically fixedly connected to the two side wall surfaces of the pushing plate (43). The wear-reducing wheel (45) is rotatably connected to the wall surface of the linkage block (44). The cleaning cloth (46) is fixedly connected to the rear wall surface of the pushing plate (43).

6. The PCB board character inkjet printer according to claim 5, characterized in that, The driving screw (40) is in a screw shape, the driving screw (40) can pass through the wall surface of the driving plate (41), and the wall surface through which the driving screw (40) passes through the driving plate (41) is threadedly connected. The pushing plate (43) is located between the rear wall surfaces of the symmetric clamping plates (35).

7. A PCB board text inkjet printer according to claim 5, characterized in that, The linkage block (44) is in the shape of a right trapezoidal block, the wear-reducing wheel (45) is in a cylindrical shape, the wear-reducing wheel (45) is rotatably connected to the inclined surface of the linkage block (44), the same wear-reducing wheel (45) is arranged on the wall surface of each linkage block (44), and the inclined surface of each linkage block (44) can be parallel to the inclined surface of the rear inclined plate (36). The cleaning cloth (46) is located on the rear wall surface of the push plate (43) between the symmetric push rods (42).

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