Manufacturing device for gold immersion of Mini LED (Light Emitting Diode) display PCB (Printed Circuit Board)

Abstract

The utility model provides a manufacturing device for immersion gold of a Mini LED display PCB, which relates to the technical field of high-definition LED display screens and comprises a machine table, a base plate is connected to the top of the machine table through bolts, a hole is formed in the top of the base plate, a blanking plate is connected to one side of the base plate, a roller shutter assembly is installed on the front face of the top of the machine table, and a blind is installed outside the roller shutter assembly. A side frame is connected to the front face of the bottom of the machine table in a clamped mode, the bottom of the blind and the top of the side frame attract each other, a sliding block is connected to one side of the front face of the base plate in a sliding mode, carborundum is blasted during treatment, a sand body is put in from the filter cone before machining, the filter cone is filtered through filter holes, and it is guaranteed that carborundum (500 meshes) of a new specification and finer granularity is used; the average particle size value of the carborundum is 25 micrometers, the maximum particle size value is not larger than 60 micrometers, the comprehensive particle size proportion of 10-40 micrometers is larger than 50%, water used for high-pressure water washing is DI water, the pressure of high-pressure swing water washing is larger than or equal to 30 kg / cm < 2 >, and the spraying time is larger than or equal to 12 S.

Description

Technical Field

[0001] The utility model relates to the technical field of high-definition LED display screens, and in particular to a manufacturing device for immersion gold of a MiniLED display PCB. Background Art

[0002] With the rapid development of Mini LED display technology, Mini LED display products have begun to be applied to ultra-large screen high-definition display, such as monitoring and command, high-definition broadcasting, high-end cinema, medical diagnosis, advertising display, conference and exhibition, office display, virtual reality and other commercial fields;

[0003] Micro LED technology, namely LED miniaturization and matrix technology, refers to the integration of high-density, tiny-sized LED arrays on a single chip.

[0004] The existing technology has the following problems in the actual production process: 1. The density of the PCB lamp bead pads is extremely high, and the PAD size and spacing are small, and the short circuit and micro short circuit problems generated during the PCB production process are difficult to solve; 2. The existing equipment cannot perform integrated pre-processing of the chip at one time, and many still need to rely on manual labor, so a MiniLED display PCB immersion gold production device is needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a MiniLED display PCB immersion gold manufacturing device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a MiniLED display PCB immersion gold manufacturing device, including a machine table, the top of the machine table is bolted with a pad, the top of the pad is opened with a hole, one side of the pad is connected to a blanking plate, the front of the top of the machine table is installed with a rolling shutter assembly, the outside of the rolling shutter assembly is installed with a blind, the front of the bottom of the machine table is clamped with a side frame, the bottom of the blind and the top of the side frame are attracted to each other, one side of the front of the pad is slidably connected with a sliding block, the top of the sliding block is threadedly connected with a bent rod, the shape of the bent rod is L-shaped, one end of the bent rod is threadedly connected with a sliding frame, the inside of the sliding frame is clamped with a workpiece to be processed, the sliding frame and the top of the pad are slidably connected.

[0007] Preferably, an etching gun is installed on one side of the inner top of the machine platform, an automatic sandblasting head is installed on the other side of the inner top of the machine platform, and movable seats are installed at the bottom ends of the etching gun and the automatic sandblasting head.

[0008] Preferably, a pressure frame is provided on one side of the top of the machine platform close to the etching gun, the top of the pressure frame is connected to a lifting cylinder group, and the top of the lifting cylinder group is electrically connected to a lifting controller.

[0009] Preferably, a connecting shaft is connected inside the pressing frame, a grinding wheel is sleeved on the outside of the connecting shaft, and a water spray pipe is provided between the pressing frame and the etching gun.

[0010] Preferably, a material receiving bin is installed on one side of the top of the machine platform, a filter bucket is installed on the top of the material receiving bin, filter holes are opened on the top of the filter bucket, and the bottom end of the material receiving bin is connected to an automatic sandblasting head.

[0011] Preferably, an ultrasonic cleaning box is provided on one side of the machine, an inclined plate is slidably connected to the inside of the ultrasonic cleaning box, a hole is provided on the top of the inclined plate, an opening is provided on the front of the ultrasonic cleaning box, side support rods are welded on both sides of the ultrasonic cleaning box, a top frame is installed between the top ends of the side support rods, winding motor groups are installed on both sides of the top frame, and a suspension rope is wrapped around the outside of the winding motor group.

[0012] Preferably, a water washing seat is placed on one side of the ultrasonic cleaning box, the opening position is aligned with the top surface of the water washing seat, an arc plate is clamped on the top of the water washing seat, electric turntables are installed on both sides of the arc plate, a high-pressure water gun is installed on the front of the electric turntable, and the end water pipe of the high-pressure water gun is connected to a high-pressure water pump.

[0013] Beneficial Effects

[0014] In the utility model, corundum is sprayed during sandblasting. Before processing, the sand body is put into the filter bucket and filtered through the filter holes in the filter bucket to ensure the use of corundum with finer particle size (500 mesh) of new specifications. The average particle size of corundum is 25um, the maximum does not exceed 60um, and the comprehensive particle size accounts for 10-40um, which accounts for more than 50%. The water used for high-pressure water washing is DI water, the high-pressure swing water washing pressure is ≥30kg / cm2, and the spraying time is ≥12S. The high-pressure water gun is installed on the front of the electric turntable, which is driven by a motor. The motor drives the electric turntable to rotate, thereby realizing the swing of the high-pressure water gun. The new process treatment method is adopted to realize the mass production of P0.7Mini LED high-end display PCB, improve the process technology capability, and enhance the competitiveness of the company's core products. The problem that the density of PCB lamp bead pads is extremely high, the PAD size and spacing are small, and the short circuit and micro short circuit problems generated during PCB production are difficult to break through is solved.

[0015] In the utility model, the equipment integrates the steps of board feeding, micro-etching, water washing, plate grinding, sandblasting, ultrasonic water washing and high-pressure swing water washing, and performs pretreatment faster, solving the problem that the existing equipment cannot perform integrated pretreatment of chips at one time and many still need to rely on manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is the overall structure diagram of the utility model;

[0017] Figure 2 It is a rear view of the utility model;

[0018] Figure 3 It is a side view of the overall structure of the utility model;

[0019] Figure 4 It is a bottom view of the utility model;

[0020] Figure 5 This is the arc plate installation structure diagram of the utility model;

[0021] Figure 6 This is a structural diagram of the ultrasonic cleaning box of the utility model;

[0022] Figure 7 This is a bottom view of the ultrasonic cleaning box of the utility model;

[0023] Figure 8 This is the internal structure diagram of the ultrasonic cleaning box of the utility model;

[0024] Fig. 9 It is a component structure diagram of the utility model;

[0025] Fig.10 This is the display diagram of the PCB sand stuck gold infiltration short circuit / micro short circuit of the utility model;

[0026] Fig.11 This is the particle size distribution diagram of the diamond sand of the present utility model.

[0027] Legend:

[0028] 1. Machine; 2. Side frame; 3. Lifting controller; 4. Rolling curtain assembly; 5. Water washing seat; 6. Ultrasonic cleaning box; 7. Filter bucket; 8. Material collection bin; 9. Opening; 10. Water spray pipe; 11. High-pressure water pump; 12. Electric turntable; 13. High-pressure water gun; 14. Arc plate; 15. Top frame; 16. Side support rod; 17. Lifting rope; 18. Rolling motor unit; 19. Inclined plate; 20. Unloading plate; 21. Pad; 22. Automatic sandblasting head; 23. Curtain; 24. Press frame; 25. Etching gun; 26. Sliding frame; 27. Bending rod; 28. Sliding block; 29. ​​Moving seat; 30. Lifting cylinder unit; 31. Connecting shaft; 32. Grinding wheel. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0030] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings. Specific embodiment one:

[0032] Reference Figure 1-11 A manufacturing device for immersion gold of MiniLED display PCB includes a machine 1, a pad 21 is bolted on the top of the machine 1, a hole is opened on the top of the pad 21, a blanking plate 20 is connected to one side of the pad 21, a rolling shutter assembly 4 is installed on the front of the top of the machine 1, a blind 23 is installed on the outside of the rolling shutter assembly 4, a side frame 2 is clamped on the front of the bottom of the machine 1, the bottom of the blind 23 and the top of the side frame 2 are attracted to each other, a sliding block 28 is slidably connected to one side of the front of the pad 21, a bent rod 27 is threadedly connected to the top of the sliding block 28, the shape of the bent rod 27 is L-shaped, one end of the bent rod 27 is threadedly connected to a sliding frame 26, a workpiece to be processed is clamped inside the sliding frame 26, and the sliding frame 26 is slidably connected to the top of the pad 21.

[0033] This equipment integrates the steps of plate feeding, micro-etching, water washing, plate grinding, sandblasting, ultrasonic water washing and high-pressure swing water washing to perform pre-processing faster. It should be noted that the drive components of all processes of the equipment itself will be equipped with proximity sensors. When the processing moves close to the output, it will be controlled to start. The specific installation position of the proximity sensor here is set according to the actual situation.

[0034] Before processing, first control the rolling shutter assembly 4 to lower the external blind 23. The rolling shutter assembly 4 includes a motor body and an output end. The installation and working method between the rolling shutter assembly 4 and the blind 23 is similar to that of a rolling shutter door. The difference is that after the blind 23 is lowered, it will be sucked together with the top of the side frame 2, so that the front side will be blocked.

[0035] The workpiece is then placed in the slide frame 26, which will clamp the edge of the workpiece, mainly to limit the workpiece to prevent it from moving during processing. The slide frame 26 is then controlled to move to the left, and the movement of the slide frame 26 is mainly driven by the front sliding block 28, which is mainly driven by a motor. The workpiece will first move to the vicinity of the water spray pipe 10, and the water suction pump of the water spray pipe 10 will start to pump water after being sensed by the proximity sensor, and spray it onto the workpiece through the water spray pipe 10 for simple cleaning. The water sprayed for cleaning will seep down from the hole on the top of the pad 21.

[0036] An etching gun 25 is installed on one side of the top of the machine platform 1 , and an automatic sandblasting head 22 is installed on the other side of the top of the machine platform 1 . A movable seat 29 is installed at the bottom of both the etching gun 25 and the automatic sandblasting head 22 .

[0037] The etching gun 25 and the automatic sandblasting head 22 will move in the moving seat 29 according to the setting to process the surface of the workpiece. Figure 4 As shown, a four-way track is provided in the movable seat 29, which is driven by a motor. The automatic sandblasting head 22 includes a nozzle, a spray gun, a paint bucket, a compressor, an oil filter, a gas separator, and an oil and gas recovery device, which will spray sand onto the surface of the workpiece.

[0038] A pressing frame 24 is provided on the top side of the machine 1 near the etching gun 25, the top of the pressing frame 24 is connected to a lifting cylinder group 30, the top of the lifting cylinder group 30 is electrically connected to a lifting controller 3, a connecting shaft 31 is connected inside the pressing frame 24, a grinding wheel 32 is sleeved on the outside of the connecting shaft 31, and a water spray pipe 10 is provided between the pressing frame 24 and the etching gun 25.

[0039] After passing through the water spray pipe 10 area, the workpiece will move the bottom of the press frame 24. After the lifting controller 3 on the top of the press frame 24 senses the position of the workpiece through the proximity sensor, it will drive the press frame 24 to descend through the lifting cylinder group 30. After the press frame 24 descends, it will just cover the top of the slide frame 26. Then the motor screw assembly inside the press frame 24 will drive the connecting shaft 31 to move left and right in a circular motion. During the movement of the connecting shaft 31, the external grinding wheel 32 will grind the surface of the workpiece.

[0040] A material receiving bin 8 is installed on one side of the top of the machine 1, and a filter bucket 7 is installed on the top of the material receiving bin 8. A filter hole is opened on the top of the filter bucket 7. The bottom end of the material receiving bin 8 is connected to the automatic sandblasting head 22. In this equipment, corundum is sandblasted. Before processing, the sand body is put into the filter bucket 7, and the filter bucket 7 is filtered through the filter hole to ensure the use of new specifications of finer corundum (500 mesh), the average particle size of corundum is 25um, the maximum does not exceed 60um, the comprehensive particle size accounts for 10-40um and accounts for more than 50%, and the aperture of the filter hole of the filter bucket 7 is opened according to this set value. Specific embodiment 2:

[0042] Reference Figure 1-11 An ultrasonic cleaning box 6 is provided on one side of the machine 1, and an inclined plate 19 is slidably connected inside the ultrasonic cleaning box 6. A hole is provided on the top of the inclined plate 19, and an opening 9 is provided on the front of the ultrasonic cleaning box 6. Side support rods 16 are welded on both sides of the ultrasonic cleaning box 6, and a top frame 15 is installed between the top ends of the side support rods 16. Winding motor groups 18 are installed on both sides of the top frame 15, and a suspension rope 17 is wound around the outside of the winding motor group 18.

[0043] After sandblasting, the workpiece is placed in the ultrasonic cleaning box 6. In order to improve the level of automation, an electric push rod can be installed here to push the workpiece to the lower material plate 20, and slide into the ultrasonic cleaning box 6 through the lower material plate 20. The workpiece will fall directly on the internal inclined plate 19, and the ultrasonic cleaning box 6 will decontaminate the surface of the workpiece. After the decontamination is completed, the winding motor group 18 on both sides of the top frame 15 will lift the inclined plate 19 through the lifting rope 18. The inclined plate 19 always remains in an inclined state. When the inclined plate 19 is pulled up to the position of the opening 9, the workpiece on the top of the inclined plate 19 will slide out from the opening 9 to the surface of the water washing seat 5.

[0044] A water washing seat 5 is placed on one side of the ultrasonic cleaning box 6, and the opening 9 is aligned with the top surface of the water washing seat 5. An arc plate 14 is clamped on the top of the water washing seat 5. Electric turntables 12 are installed on both sides of the arc plate 14. A high-pressure water gun 13 is installed on the front of the electric turntable 12, and the end water pipe of the high-pressure water gun 13 is connected to a high-pressure water pump 11.

[0045] The water washing seat 5 is used for high-pressure water washing of the equipment. The water used for high-pressure water washing here is DI water. The high-pressure swing water washing pressure is ≥30kg / cm2, and the spraying time is ≥12S. The high-pressure water gun 13 is installed on the front of the electric turntable 12. The electric turntable 12 is driven by a motor, and the motor drives the electric turntable 12 to rotate, thereby realizing the swing of the high-pressure water gun 13.

[0046] In summary:

[0047] 1. This equipment integrates the steps of plate feeding, micro-etching, water washing, plate grinding, sandblasting, ultrasonic water washing and high-pressure swing water washing to perform pre-treatment faster. It should be noted that the driving components of all processes of the equipment itself will be equipped with proximity sensors. When the processing moves close to the output, it will be controlled to start. The specific installation position of the proximity sensor here is set according to the actual situation. Before processing, the rolling shutter assembly 4 is controlled to lower the external curtain 23. The rolling shutter assembly 4 includes a motor body and an output end. The installation working method between the rolling shutter assembly 4 and the curtain 23 is similar to that of the rolling shutter door. The difference is that after the curtain 23 is lowered, it will be sucked together with the top of the side frame 2, so that the front will be blocked.

[0048] After that, the workpiece is placed in the slide frame 26, which will clamp the edge of the workpiece, mainly to limit the workpiece to prevent it from moving during processing. Then, the slide frame 26 is controlled to move to the left. The movement of the slide frame 26 is mainly driven by the front sliding block 28, and the sliding block 28 is mainly driven by the motor. The workpiece will first move to the vicinity of the water spray pipe 10. The water suction pump of the water spray pipe 10 will start to pump water after being sensed by the proximity sensor, and spray it to the workpiece through the water spray pipe 10 for simple cleaning. The water sprayed for cleaning will seep down from the hole on the top of the pad 21, and the etching gun 25 and the automatic sandblasting head 22 will move in the moving seat 29 according to the setting, so as to process the surface of the workpiece. Figure 4 As shown, a four-way track is provided in the movable seat 29, which is driven by a motor. The automatic sandblasting head 22 includes a nozzle, a spray gun, a paint bucket, a compressor, an oil filter, an air separator, and an oil and gas recovery device, which will spray sand onto the surface of the workpiece. After the workpiece passes through the water spray pipe 10 area, it will move the bottom of the press frame 24. After the lifting controller 3 on the top of the press frame 24 senses the position of the workpiece through the proximity sensor, it will drive the press frame 24 to descend through the lifting cylinder group 30. After the press frame 24 descends, it will just cover the top of the sliding frame 26. Then the motor screw assembly inside the press frame 24 will drive the connecting shaft 31 to move left and right in a circular motion. During the movement of the connecting shaft 31, the external grinding wheel 32 will grind the surface of the workpiece.

[0049] A material receiving bin 8 is installed on one side of the top of the machine 1, and a filter bucket 7 is installed on the top of the material receiving bin 8. A filter hole is opened on the top of the filter bucket 7. The bottom end of the material receiving bin 8 is connected to the automatic sandblasting head 22. In this equipment, corundum is sandblasted. Before processing, the sand body is put into the filter bucket 7, and the filter bucket 7 is filtered through the filter hole to ensure the use of new specifications of finer corundum (500 mesh), the average particle size of corundum is 25um, the maximum does not exceed 60um, the comprehensive particle size accounts for 10-40um and accounts for more than 50%, and the aperture of the filter hole of the filter bucket 7 is opened according to this set value.

[0050] 2. After sandblasting, the workpiece is placed in the ultrasonic cleaning box 6. In order to improve the level of automation, an electric push rod can be installed here to push the workpiece to the lower material plate 20, and slide it into the ultrasonic cleaning box 6 through the lower material plate 20. The workpiece will fall directly on the internal inclined plate 19, and the ultrasonic cleaning box 6 will decontaminate the surface of the workpiece. After the decontamination is completed, the winding motor group 18 on both sides of the top frame 15 will lift the inclined plate 19 through the lifting rope 18, and the inclined plate 19 will always remain in an inclined state. When the inclined plate 19 is pulled up to the position of the opening 9, the workpiece on the top of the inclined plate 19 will slide out of the opening 9 to the surface of the water washing seat 5. The water washing seat 5 is used for high-pressure water washing of the equipment. The water used for high-pressure water washing here is DI water. The high-pressure swing water washing pressure is ≥30kg / cm2, and the spraying time is ≥12S. The high-pressure water gun 13 is installed on the front of the electric turntable 12. The electric turntable 12 is driven by a motor, and the motor drives the electric turntable 12 to rotate, thereby realizing the swing of the high-pressure water gun 13.

[0051] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0052] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A MiniLED display PCB immersion gold manufacturing device, comprising a machine (1), characterized in that: The top of the machine platform (1) is bolted to a pad (21), a hole is formed on the top of the pad (21), a blanking plate (20) is connected to one side of the pad (21), a rolling curtain assembly (4) is installed on the front of the top of the machine platform (1), a blind (23) is installed on the outside of the rolling curtain assembly (4), a side frame (2) is clamped on the front of the bottom of the machine platform (1), the bottom of the blind (23) and the top of the side frame (2) attract each other, a sliding block (28) is slidably connected to one side of the front of the pad (21), the top of the sliding block (28) is threadedly connected to a bent rod (27), the shape of the bent rod (27) is L-shaped, one end of the bent rod (27) is threadedly connected to a sliding frame (26), the inside of the sliding frame (26) is clamped with a workpiece to be processed, and the sliding frame (26) and the top of the pad (21) are slidably connected.

2. A MiniLED display PCB immersion gold manufacturing device according to claim 1, characterized in that: An etching gun (25) is installed on one side of the top of the machine platform (1), and an automatic sandblasting head (22) is installed on the other side of the top of the machine platform (1). The bottom ends of the etching gun (25) and the automatic sandblasting head (22) are both installed with a movable seat (29).

3. The manufacturing device of MiniLED display PCB immersion gold according to claim 2, characterized in that: A pressure frame (24) is provided on one side of the top of the machine platform (1) close to the etching gun (25), the top of the pressure frame (24) is connected to a lifting cylinder group (30), and the top of the lifting cylinder group (30) is electrically connected to a lifting controller (3).

4. The manufacturing device of MiniLED display PCB immersion gold according to claim 3, characterized in that: A connecting shaft (31) is connected inside the pressing frame (24), a grinding wheel (32) is sleeved outside the connecting shaft (31), and a water spray pipe (10) is provided between the pressing frame (24) and the etching gun (25).

5. The manufacturing device of MiniLED display PCB immersion gold according to claim 4, characterized in that: A material receiving bin (8) is installed on one side of the top of the machine platform (1), a filter hopper (7) is installed on the top of the material receiving bin (8), a filter hole is opened on the top of the filter hopper (7), and the bottom end of the material receiving bin (8) is connected to an automatic sandblasting head (22).

6. The manufacturing device of MiniLED display PCB immersion gold according to claim 1, characterized in that: An ultrasonic cleaning box (6) is provided on one side of the machine (1), an inclined plate (19) is slidably connected to the inside of the ultrasonic cleaning box (6), a hole is provided on the top of the inclined plate (19), an opening (9) is provided on the front of the ultrasonic cleaning box (6), side support rods (16) are welded on both sides of the ultrasonic cleaning box (6), a top frame (15) is installed between the top ends of the side support rods (16), a winding motor group (18) is installed on both sides of the top frame (15), and a suspension rope (17) is wound around the outside of the winding motor group (18).

7. The manufacturing device of MiniLED display PCB immersion gold according to claim 6, characterized in that: A water washing seat (5) is placed on one side of the ultrasonic cleaning box (6), the position of the opening (9) is aligned with the top surface of the water washing seat (5), the top of the water washing seat (5) is clamped with an arc plate (14), both sides of the arc plate (14) are equipped with an electric turntable (12), the front of the electric turntable (12) is equipped with a high-pressure water gun (13), and the terminal water pipe of the high-pressure water gun (13) is connected to a high-pressure water pump (11).

Images