Gold immersion pretreatment device for circuit board processing

Abstract

The utility model discloses a gold immersion pretreatment device for circuit board processing, which comprises a conveying frame, a conveying mechanism arranged on the conveying frame, a cleaning mechanism arranged on the conveying frame and used for cleaning the surface of the conveying mechanism, the cleaning mechanism comprises a cleaning box sleeved on the outer side of the conveying frame, the cleaning box is provided with a cavity, and an air pump is arranged at the top of the cleaning box. An air pump is arranged on the conveying frame, an exhaust pipe is arranged at the output end of the air pump, the exhaust pipe penetrates through the cleaning box to be connected with an exhaust hood, and a wiping mechanism used for wiping the surface of the conveying mechanism is arranged on the conveying frame. According to the conveying belt cleaning device, gravel remaining on the surface of the conveying belt after sand blasting treatment can be efficiently blown off and collected into the collecting box, so that the cleanliness of the conveying belt is remarkably improved, scratches or damage caused by the gravel to a circuit board conveyed subsequently can be reduced, and the frequency and difficulty of equipment maintenance can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a gold immersion pretreatment device for circuit board processing. Background Art

[0002] The pretreatment before gold immersion of the circuit board is very important. Sandblasting treatment is an important step in the pretreatment. It is mainly used to remove dirt, oxides and other impurities on the surface of the circuit board, improve the surface roughness of the circuit board, so as to enhance the adhesion of the subsequent coating or metal deposition. The Chinese authorized utility model patent (publication number: CN217620013U) discloses a sandblasting device for pretreatment before gold immersion of the circuit board. The device is provided with a transfer table, and there are multiple gaps in the middle of the transfer mechanism, so that waste can fall down. And a collection mechanism is arranged at the lower end of the transfer and transmission mechanism to collect the fallen waste, which is convenient for cleaning the waste and improves the working efficiency of the device, and can operate the circuit board in batches.

[0003] There are still some deficiencies in the above device when it is used: Although there are gaps between the conveyor belts in the above device, which is convenient for the sand and gravel to fall, the sand and gravel sputtered during the sandblasting process will inevitably remain on the surface of the conveyor belt. These remaining sand and gravel will not only cause scratches or damage to the subsequent conveyed circuit boards, but also the conveyor belt will be worn during long-term use, thus shortening its service life. Therefore, in view of the above situation, a gold immersion pretreatment device for circuit board processing is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defect that the sand and gravel sputtered during the sandblasting process will inevitably remain on the surface of the conveyor belt in the prior art, and these remaining sand and gravel will not only cause scratches or damage to the subsequent conveyed circuit boards, and a gold immersion pretreatment device for circuit board processing is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A gold immersion pretreatment device for circuit board processing includes a conveying frame, and a conveying mechanism is arranged on the conveying frame.

[0007] A cleaning mechanism for cleaning the surface of the conveying mechanism is arranged on the conveying frame. The cleaning mechanism includes a cleaning box sleeved outside the conveying frame. The cleaning box has a cavity. An air pump is arranged at the top of the cleaning box. The output end of the air pump is provided with an exhaust pipe, and the exhaust pipe passes through the cleaning box and is connected with an exhaust hood.

[0008] A wiping mechanism for wiping the surface of the conveying mechanism is arranged on the conveying frame. The wiping mechanism includes a pair of positioning seats arranged at the top of the conveying frame. A cleaning plate is arranged on the pair of positioning seats. A sponge block is arranged at the bottom of the cleaning plate, and the sponge block is in contact with the surface of the conveying mechanism.

[0009] Preferably, a sandblasting box is sleeved on the conveying rack, and support columns are arranged at the bottom of the sandblasting box.

[0010] Preferably, a diversion pipe is arranged at the bottom of the sandblasting box, and a collection box is arranged at the lower end of the diversion pipe.

[0011] Preferably, the exhaust hood is fixed inside the cavity, and an exhaust port inclined downward is opened on the exhaust hood.

[0012] Preferably, a feeding pipe is arranged at the bottom of the cleaning box, and one end of the feeding pipe is communicated with the diversion pipe.

[0013] Preferably, through grooves for communicating with the feeding pipe and the diversion pipe are respectively opened on the conveying rack.

[0014] Preferably, the inside of the cleaning plate has a cavity, a water injection pipe communicating with the cavity is arranged at the top of the cleaning plate, and a sealing cover is threadedly connected to the water injection pipe.

[0015] Preferably, a plurality of through holes are formed through the bottom of the cleaning plate, and the plurality of through holes are communicated with the cavity.

[0016] Preferably, a pair of limiting members are arranged on the positioning seat, the limiting members include rod bodies fixed on the positioning seat, a limiting plate is in clearance fit on the rod bodies, and the limiting plate is in contact with the cleaning plate.

[0017] The utility model has the following beneficial effects:

[0018] 1. Through the structural design of the cleaning mechanism, the cleaning box, the air pump, the exhaust hood and the feeding pipe, the utility model can efficiently blow off the grit remaining on the surface of the conveyor belt after sandblasting treatment and collect it into the collection box, thereby significantly improving the cleanliness of the conveyor belt. This not only helps to reduce the scratches or damages caused by the grit to the circuit board in the subsequent conveying, but also reduces the frequency and difficulty of equipment maintenance.

[0019] 2. Through the structural design of the positioning seat, the cleaning plate, the sponge block and the limiting members, as the conveyor belt moves, the sponge block can adaptively absorb water and then wipe the surface of the conveyor belt, effectively removing the difficult-to-remove sand grains, ensuring the flatness and cleanliness of the conveyor belt surface, and further ensuring the stability and reliability of the circuit board during the conveying process. Further, the risk of damage to the conveyor belt due to friction and wear is reduced, the service life of the conveyor belt is extended, and the production cost is reduced.

[0020] 3. Through the automatic cleaning and wiping treatment, the utility model reduces the need for manual intervention, improves the automation degree and production efficiency of the production line. At the same time, due to the improvement of the cleanliness of the conveyor belt and the enhancement of the conveying stability of the circuit board, the downtime caused by equipment failures and product quality problems is reduced, and the production efficiency is further improved. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of a pretreatment device;

[0022] Figure 2 It is a schematic structural diagram of a cleaning mechanism;

[0023] Figure 3 It is a schematic structural diagram of a wiping mechanism;

[0024] Figure 4 It is a schematic structural diagram of a limiting member.

[0025] In the figure: 1. Conveyor frame; 2. Conveyor mechanism; 3. Sandblasting box; 301. Collection box; 4. Cleaning mechanism; 401. Cleaning box; 4010. Cavity; 402. Air pump; 403. Exhaust hood; 404. Feeding pipe; 5. Wiping mechanism; 501. Positioning seat; 502. Cleaning plate; 503. Sponge block; 504. Limiting member; 5040. Rod body; 5041. Limiting plate. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Refer to Figures 1-4 , a gold immersion pretreatment device for circuit board processing, including a conveyor frame 1, and a conveyor mechanism 2 is arranged on the conveyor frame 1.

[0028] Furthermore, the composition structure of the conveyor mechanism 2 is the same as that of the transmission mechanism in the prior art (publication number: CN217620013U), which is mainly used to convey the circuit board to move, and its working principle and specific structure will not be described in detail here.

[0029] A cleaning mechanism 4 for cleaning the surface of the conveyor mechanism 2 is arranged on the conveyor frame 1. The cleaning mechanism 4 includes a cleaning box 401 sleeved outside the conveyor frame 1. The cleaning box 401 has a cavity 4010. An air pump 402 is arranged on the top of the cleaning box 401, and an exhaust pipe is arranged at the output end of the air pump 402. The exhaust pipe passes through the cleaning box 401 and is connected with an exhaust hood 403.

[0030] During use, when the conveyor belt conveys the circuit board after sandblasting into the cavity 4010, the air pump 402 can work to convey gas into the exhaust hood 403 through the exhaust pipe. After being discharged through the exhaust hood 403, it can blow the surface of the conveyor belt entering the cavity 4010, blow off the easily cleaned sand and gravel on the surface of the cavity 4010, drop through the through groove into the feeding pipe 404, and finally be conveyed to the collection box 301 for collection.

[0031] A wiping mechanism 5 for wiping the surface of the conveying mechanism 2 is provided on the conveying rack 1. The wiping mechanism 5 includes a pair of positioning seats 501 arranged on the top of the conveying rack 1. A cleaning plate 502 is arranged on the pair of positioning seats 501. A sponge block 503 is arranged at the bottom of the cleaning plate 502, and the sponge block 503 is in contact with the surface of the conveying mechanism 2.

[0032] After the conveyor belt drives one circle, it will come into contact with the sponge block 503. As the conveyor belt moves, the sponge block 503 can adaptively absorb water and then wipe the surface of the conveyor belt, effectively removing the difficult-to-remove sand grains, ensuring the flatness and cleanliness of the conveyor belt surface, and thus ensuring the stability and reliability of the circuit board during transportation. Further, it reduces the risk of damage to the conveyor belt due to friction and wear, extends the service life of the conveyor belt, and reduces the production cost.

[0033] Through automated cleaning and wiping processes, the need for manual intervention is reduced, the automation level and production efficiency of the production line are improved. At the same time, due to the improvement of the conveyor belt cleanliness and the enhancement of the circuit board transportation stability, the downtime caused by equipment failures and product quality problems is reduced, further improving the production efficiency.

[0034] Furthermore, the electrical equipment in this device is externally connected to a power source and a switch. The circuit board can be placed from the side close to the wiping mechanism 5, and the sandblasted circuit board is unloaded from the end close to the cleaning mechanism 4.

[0035] In this embodiment, as Figure 1 shown, a sandblasting box 3 is sleeved on the conveying rack 1. Support columns are arranged at the bottom of the sandblasting box 3. A diversion pipe is arranged at the bottom of the sandblasting box 3, and a collection box 301 is arranged at the lower end of the diversion pipe.

[0036] Furthermore, the sandblasting box 3 is used for sandblasting the circuit board, the diversion pipe is used to limit the flow direction of the waste, the collection box 301 is used to collect the waste. A box door is hinged on the side of the sandblasting box 3, a handle is arranged on the box door, and a transparent observation window is arranged on the box door. When the box door is opened, the internal structure of the sandblasting box 3 can be operated, and the transparent observation window is used to observe the working state inside the sandblasting box 3. A sandblasting device is arranged inside the sandblasting box 3. The sandblasting device can adopt existing technologies, and its working principle and specific structure are not described here.

[0037] In this embodiment, as Figure 2 shown, the exhaust hood 403 is fixed inside the cavity 4010, and an exhaust port inclined downward is opened on the exhaust hood 403.

[0038] Furthermore, the exhaust hood 403 is communicated with the exhaust pipe connected to the air pump 402. The inclined downward exhaust port can blow towards the conveyor belt when discharging air, blowing the sand and gravel on the conveyor belt for collection.

[0039] In this embodiment, as Figure 2 shown, a feed pipe 404 is provided at the bottom of the cleaning box 401, and one end of the feed pipe 404 is communicated with the diversion pipe.

[0040] Furthermore, the gravel on the conveyor belt is blown off, and the blown-off gravel can be conveyed through the feed pipe 404 into the diversion pipe, so that the gravel falls into the collection box 301.

[0041] In this embodiment, as Figure 1 and Figure 2 shown, through grooves for communicating with the feed pipe 404 and the diversion pipe are respectively formed on the conveying rack 1.

[0042] Furthermore, the through grooves are provided to facilitate the feeding of gravel and collect the gravel.

[0043] In this embodiment, as Figure 3 shown, the inside of the cleaning plate 502 has a cavity, a water injection pipe communicating with the cavity is provided at the top of the cleaning plate 502, and a sealing cover is threadedly connected to the water injection pipe.

[0044] Furthermore, the staff can unscrew the sealing cover and inject clean water into the cavity of the cleaning plate 502 through the water injection pipe.

[0045] In this embodiment, as Figure 1 、 Figure 2 and Figure 3 shown, a plurality of through holes are formed through the bottom of the cleaning plate 502, and the plurality of through holes are communicated with the cavity.

[0046] Furthermore, the sponge block 503 can absorb the clean water in the cavity through the through holes for wiping and cleaning the surface of the conveyor belt.

[0047] In this embodiment, as Figure 1 、 Figure 2 and Figure 3 shown, a pair of limiting members 504 are provided on the positioning seat 501. The limiting members 504 include a rod body 5040 fixed on the positioning seat 501, and a limiting plate 5041 is in clearance fit with the rod body 5040, and the limiting plate 5041 touches the cleaning plate 502.

[0048] Furthermore, the surface of the rod body 5040 has a friction surface. The rotation of the limiting plate 5041 requires external interference. By rotating the limiting plate 5041, the limiting plate 5041 can position the cleaning plate 502, thereby ensuring the stability of the cleaning plate 502.

[0049] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A pre-treatment device for immersion gold in circuit board processing, including a conveying frame (1), on which a conveying mechanism (2) is arranged, and is characterized in that: A cleaning mechanism (4) for cleaning the surface of the conveying mechanism (2) is arranged on the conveying frame (1). The cleaning mechanism (4) includes a cleaning box (401) sleeved outside the conveying frame (1). The cleaning box (401) has a cavity (4010). An air pump (402) is arranged at the top of the cleaning box (401). The output end of the air pump (402) is provided with an exhaust pipe, and the exhaust pipe passes through the cleaning box (401) and is connected with an exhaust hood (403); A wiping mechanism (5) for wiping the surface of the conveying mechanism (2) is arranged on the conveying frame (1). The wiping mechanism (5) includes a pair of positioning seats (501) arranged on the top of the conveying frame (1). A cleaning plate (502) is arranged on the pair of positioning seats (501). A sponge block (503) is arranged at the bottom of the cleaning plate (502), and the sponge block (503) is in contact with the surface of the conveying mechanism (2).

2. The gold immersion pretreatment device for circuit board processing according to claim 1, wherein: A sandblasting box (3) is sleeved on the conveying frame (1), and support columns are arranged at the bottom of the sandblasting box (3).

3. The gold immersion pretreatment device for circuit board processing according to claim 2, wherein: A diversion pipe is arranged at the bottom of the sandblasting box (3), and a collection box (301) is arranged at the lower end of the diversion pipe.

4. A pre-treatment device for immersion gold in printed circuit board processing according to claim 1, characterized in that: The exhaust hood (403) is fixed inside the cavity (4010), and an exhaust port inclined downward is arranged on the exhaust hood (403).

5. A gold immersion pretreatment device for circuit board processing according to claim 1 or 3, characterized in that: A feeding pipe (404) is arranged at the bottom of the cleaning box (401), and one end of the feeding pipe (404) is communicated with the diversion pipe.

6. The gold immersion pretreatment device for circuit board processing according to claim 5, wherein: Through grooves for communicating with the feeding pipe (404) and the diversion pipe are respectively arranged on the conveying frame (1).

7. A gold immersion pretreatment device for printed circuit board processing according to claim 1, characterized in that: The cleaning plate (502) has a cavity inside. A water injection pipe communicating with the cavity is arranged at the top of the cleaning plate (502), and a sealing cover is threadedly connected to the water injection pipe.

8. The gold immersion pretreatment device for circuit board processing according to claim 7, characterized in that: A plurality of through holes are formed through the bottom of the cleaning plate (502), and the plurality of through holes are communicated with the cavity.

9. The gold immersion pretreatment device for circuit board processing according to claim 7, wherein: A pair of limiting members (504) are arranged on the positioning seat (501). The limiting members (504) include a rod body (5040) fixed on the positioning seat (501). A limiting plate (5041) is arranged on the rod body (5040) with a clearance fit, and the limiting plate (5041) is in contact with the cleaning plate (502).

Images