Drying mechanism of circuit board cleaning machine

Abstract

The utility model discloses a drying mechanism of a circuit board cleaning machine, which comprises a casing with a feed port and a discharge port, and a transmission roller way extending from the feed port to the discharge port, an air knife mechanism is arranged in the casing, and a drying mechanism is arranged on the outer side of the discharge port. And drying is carried out through a blow-drying fan on the outer side. The drying mechanism provided by the utility model adopts modular arrangement, can be connected to the rear side of a cleaning machine in the prior art, and has relatively high drying efficiency and cleaning effect.

Description

Technical Field

[0001] The utility model relates to a processing device for a circuit board, in particular to a drying mechanism of a circuit board cleaning machine. Background Art

[0002] A circuit board cleaning machine is a special cleaning device for circuit boards. Traditional cleaning machines are set up individually, and a single workpiece is cleaned in a closed machine body, with slow efficiency. Therefore, streamlined cleaning devices have emerged on the market. The cleaning of circuit boards generally removes debris on the surface of the circuit board through ultrasonic, spraying, dipping or other methods. In order to reduce the cleaning water or cleaning agent generated during the cleaning process in the prior art, a drying mechanism composed of multiple blowers is usually set at the rear side of the cleaning machine to blow-dry the surface of the cleaned material at a fixed point. However, the drying effect is not good, and there is too much liquid on the surface of the material, which is not conducive to the transfer of the material and affects the circulation ability of the processing streamline. Summary of the Utility Model

[0003] To solve the above technical problems, the utility model provides a drying mechanism of a circuit board cleaning machine, which includes a machine table and a machine shell arranged on the machine table. A strip-shaped feeding port and a discharging port are respectively arranged at opposite ends of the machine shell. It is characterized in that a conveying roller path is arranged extending from the feeding port to the discharging port direction, and the conveying roller path includes a plurality of transmission rollers arranged in sequence;

[0004] A plurality of groups of air knives are arranged between the transmission rollers in the machine shell. The air knives are arranged in the same direction as the transmission rollers. The bottom of the air knife is connected with a ventilation pipeline, and the other end of the ventilation pipeline is communicated with a heating pump. The blowing surface of the air knife is lower than the transmission surface of the transmission roller;

[0005] A plurality of groups of drying blowers arranged in the same direction as the transmission rollers are arranged outside the machine shell near the discharging port, and the drying blowers are arranged above the transmission rollers through a blower support.

[0006] Further, the driving component of the transmission roller is a servo motor, and the transmission roller and the servo motor are driven by a gear meshing structure.

[0007] Further, a rotating main shaft is arranged on the side of the conveying roller path. A plurality of groups of driving gears are arranged at intervals on the rotating main shaft. A driven gear meshing and driving with the driving gear is arranged at the end of each transmission roller; both the driving gear and the driven gear are bevel gears, and the rotating main shaft is driven to rotate by a servo motor.

[0008] Further, a liquid collecting plate is obliquely arranged at the bottom of the machine shell. The liquid collecting plate is located below the conveying roller path and is inclined from both sides of the machine shell to the middle. The bottom of the liquid collecting plate is communicated with a liquid collecting pipeline.

[0009] Further, a filtering device is arranged at the liquid inlet of the liquid collecting pipeline.

[0010] Furthermore, a plurality of exhaust ducts are provided above the conveying roller path, and the exhaust ducts penetrate through the casing and communicate with an external air pump.

[0011] Furthermore, the exhaust ducts are vertically arranged and located on the sides of the discharge port and the feed port.

[0012] Furthermore, a plurality of ventilation openings are provided at the top of the casing, and the surface of each ventilation opening is covered with an air hood communicating with the outside.

[0013] Furthermore, support side plates are provided on both sides of the conveying roller path. The support side plates extend out of the casing from inside the casing along the transmission direction of the conveying roller path. A plurality of installation grooves are arranged along the extension direction of the support side plates. Both ends of the transmission roller are rotatably connected in the installation grooves through bearings.

[0014] Furthermore, a clamping seat is snap-fitted in the installation groove. Each group of clamping seats includes an upper clamping opening and a lower clamping opening arranged in the vertical direction, and the bearing is installed in the lower clamping opening and the installation groove.

[0015] The present utility model discloses a drying mechanism of a circuit board cleaning machine, which includes a casing having a feed port and a discharge port, a conveying roller path extending from the feed port to the discharge port, an air knife mechanism is arranged inside the casing, and a drying mechanism is arranged outside the discharge port. When the material is conveyed, it first passes through the air knife inside the casing to blow off water droplets and sundries, and then is dried by the drying blower outside. The drying mechanism provided by the present invention adopts a modular setting, can be connected to the rear side of the cleaning machine in the prior art, and has a high drying efficiency and cleaning effect. Description of the Drawings

[0016] Figure 1 is an external view schematic diagram of the drying mechanism of the circuit board cleaning machine of the present utility model;

[0017] Figure 2 is a main perspective view of the casing part of the drying mechanism;

[0018] Figure 3 is Figure 2 a top perspective view of

[0019] Figure 4 is Figure 2 a left perspective view of

[0020] Figure 5 is a meshing transmission structure schematic diagram of the transmission roller and the rotating main shaft;

[0021] Figure 6 is a connection schematic diagram of the clamping seat and the support side plate.

[0022] Reference numerals: housing 1, feed inlet 2, discharge outlet 3, conveying roller 4, rotating main shaft 5, driving gear 6, driven gear 7, air knife 8, ventilation duct 9, liquid collecting plate 10, liquid collecting duct 11, filtering device 12, drying blower 13, blower bracket 14, exhaust duct 15, air hood 16, supporting side plate 17, mounting groove 18, card holder 19, upper bayonet 20, lower bayonet 21, bearing 22. Detailed implementation manner

[0023] As Figure 1 With Figure 5 The drying mechanism of the circuit board cleaning machine shown in the figure includes a machine table and a housing 1 arranged on the machine table; the housing 1 is integrally a sealed housing structure, and a strip-shaped feed inlet 2 and a discharge outlet 3 are respectively arranged at opposite ends of the housing 1, and a conveying roller path is arranged extending from the feed inlet 2 to the discharge outlet 3. The conveying roller path includes a plurality of sequentially arranged conveying rollers 4. After the material undergoes the previous cleaning process, it enters from the feed inlet 2 and is driven by the conveying roller path to flow out towards the discharge outlet 3. The purpose of the present invention is to dry the material during the conveying process.

[0024] The conveying roller path is driven by a bevel gear meshing structure, including a rotating main shaft 5 arranged on the side of the conveying roller path. A plurality of groups of driving gears 6 are arranged at intervals on the rotating main shaft 5, and a driven gear 7 meshing and driving with the driving gear 6 is arranged at the end of each conveying roller 4. Both the driving gear 6 and the driven gear 7 are bevel gears. The rotating main shaft 5 rotates driven by a servo motor and drives each group of conveying rollers 4 to rotate through the bevel gear meshing structure.

[0025] The present invention includes two drying mechanisms, an internal drying mechanism and an external drying mechanism. The internal drying mechanism is located inside the housing 1 and includes an air knife 8 arranged between the conveying rollers 4. As shown in the figure, the air knife 8 is in two groups and is arranged in the same direction as the conveying rollers 4. The upper surface of the air knife 8 is slightly lower than the conveying surface of the conveying roller group. The bottom of the air knife 8 is connected to a ventilation duct 9. Gas flows in from the bottom of the ventilation duct 9 and is ejected through the air holes arranged on the upper surface of the air knife 8 to blow off the cleaning liquid, dust, debris, etc. on the surface of the workpiece. In this embodiment, the gas inlet of the ventilation duct 9 is located at the bottom of the housing 1 and is connected to an external heating pump. The external heating pump extracts external gas and then heats and transports it into the ventilation duct 9.

[0026] As Figures 2 to 4As shown in the figure, a liquid collecting plate 10 is inclined at the bottom of the casing 1. The liquid collecting plate 10 is located below the conveying roller path and is inclined from both sides of the casing 1 towards the middle. The cleaning water, debris, etc. generated during the movement of the material fall between the conveying rollers 4 onto the liquid collecting plate 10 and are guided to the middle by the liquid collecting plate 10; a liquid collecting pipe 11 is connected to the bottom of the liquid collecting plate 10, and the liquid on the liquid collecting plate 10 is transmitted to the outside through the liquid collecting pipe 11; a filtering device 12 is provided at the liquid inlet of the liquid collecting pipe 11, which can isolate larger solid impurities on the liquid collecting plate 10 to prevent the impurities from flowing in and causing blockage of the liquid collecting pipe 11.

[0027] The external drying mechanism is located outside the casing 1 near the discharge port 3 and includes a plurality of air drying blowers 13 arranged along the direction perpendicular to the conveying roller path. The air drying blowers 13 are arranged above the conveying rollers 4 through the blower brackets 14.

[0028] A plurality of exhaust ducts 15 are provided above the conveying roller path. The exhaust ducts 15 pass through the casing 1 and are connected to an external air pump. When the air pump is started, a negative pressure is generated at the pipe orifice of the exhaust ducts 15, so that the hot air flow above the conveying roller path circulates. In this embodiment, a part of the exhaust ducts 15 is arranged along the side of the conveying roller path and is arranged in the same direction as the conveying rollers 4. When this part of the exhaust ducts 15 is started, it can guide and discharge most of the air flow in the casing 1 to keep the air in the casing 1 circulating; another part of the exhaust ducts 15 is arranged vertically and is located on the sides of the discharge port 3 and the feed port 2. This part of the exhaust ducts 15 can generate an upward air flow at the discharge port 3 and the feed port 2 to prevent too much hot air from being discharged from the feed port 2 and the discharge port 3, causing the risk of scalding the staff.

[0029] The casing 1 of this embodiment includes an inclined glass plate, and the glass plate is located on the upper surface of the casing 1, which is convenient for the staff to observe the working state inside the casing 1 from the outside. A plurality of ventilation openings are provided at the top of the casing 1, and an air hood 16 is covered on the surface of each ventilation opening. Part of the air flow and liquid droplets will move upward after being heated and are discharged from the position of the ventilation openings, so that the pressure inside the casing 1 is maintained within a reasonable range.

[0030] As Figure 1 And Figure 6As shown in the figure, in this embodiment, support side plates 17 are provided on both sides of the conveying roller path. The support side plates 17 extend out of the machine housing 1 from within the machine housing 1 along the transmission direction of the conveying roller path. A plurality of mounting grooves 18 are arranged along the extending direction of the support side plates 17. A clamping seat 19 is clamped and installed in each of the plurality of mounting grooves 18. Each clamping seat 19 includes an upper clamping opening 20 and a lower clamping opening 21 arranged in the vertical direction. After installing the clamping seat 19, the positions of some components can be quickly positioned and installed, and the disassembly is convenient. For example, both ends of the transmission roller 4 in this embodiment are rotatably connected between the lower clamping opening 21 and the bottom of the mounting groove 18 through bearings 22, quickly positioning the position of the transmission roller 4 and facilitating the transmission connection between the transmission roller 4 and the rotating main shaft 5. The upper clamping opening 20 is located on the upper surface of the mounting groove 18. The blower frame 14 outside the machine housing 1 and both sides of the air knife 8 are connected to the upper clamping opening 20 by a clamping method.

[0031] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A drying mechanism of a circuit board cleaning machine, comprising a machine platform, a housing (1) arranged on the machine platform, and a strip-shaped feed port (2) and a discharge port (3) are respectively arranged at opposite ends of the housing (1), characterized in that: A conveying roller conveyor is provided extending from the feed port (2) to the discharge port (3), the conveying roller conveyor comprising a plurality of transmission rollers (4) arranged in sequence; A plurality of groups of wind knives (8) are arranged between the transmission rollers (4) in the housing (1); the wind knives (8) are arranged in the same direction as the transmission rollers (4); a ventilation pipe (9) is connected to the bottom of the wind knives (8); the other end of the ventilation pipe (9) is connected to a heating pump; and the blowing surface of the wind knives (8) is lower than the transmission surface of the transmission rollers (4); A plurality of groups of drying fans (13) are arranged on the outer side of the casing (1) near the discharge port (3) and are arranged in the same direction as the transmission roller (4). The drying fans (13) are arranged above the transmission roller (4) via fan brackets (14).

2. The drying mechanism of the circuit board cleaning machine according to claim 1, characterized in that: The transmission component of the transmission roller (4) is a servo motor, and the transmission roller (4) and the servo motor are transmitted via a gear meshing structure.

3. The drying mechanism of the circuit board cleaning machine according to claim 2, characterized in that: A rotating main shaft (5) is arranged on the side of the conveying roller, and a plurality of groups of driving gears (6) are arranged at intervals on the rotating main shaft (5). The end of each group of conveying rollers (4) is provided with a driven gear (7) meshing with the driving gear (6) for transmission; the driving gear (6) and the driven gear (7) are both bevel gears, and the rotating main shaft (5) is driven to rotate by a servo motor.

4. The drying mechanism of the circuit board cleaning machine according to claim 1, characterized in that: A liquid collecting plate (10) is provided at an angle at the bottom of the casing (1). The liquid collecting plate (10) is located below the conveying roller and is inclined from both sides of the casing (1) toward the middle. The bottom of the liquid collecting plate (10) is connected to a liquid collecting pipe (11).

5. The drying mechanism of the circuit board cleaning machine according to claim 4, characterized in that: The liquid inlet of the liquid collecting pipe (11) is provided with a filtering device (12).

6. The drying mechanism of the circuit board cleaning machine according to claim 1, characterized in that: A plurality of exhaust ducts (15) are arranged above the conveying roller, and the exhaust ducts (15) pass through the casing (1) and are connected to an external air pump.

7. The drying mechanism of the circuit board cleaning machine according to claim 6, characterized in that: The exhaust duct (15) is arranged vertically and is located on the sides of the discharge port (3) and the feed port (2).

8. The drying mechanism of the circuit board cleaning machine according to claim 1, characterized in that: A plurality of ventilation openings are arranged on the top of the housing (1), and a surface cover of each ventilation opening is provided with an air cover (16) communicating with the outside.

9. The drying mechanism of the circuit board cleaning machine according to claim 1, characterized in that: Support side plates (17) are provided on both sides of the conveying roller, and the support side plates (17) extend from the casing (1) to the outside of the casing (1) along the conveying direction of the conveying roller. A plurality of groups of mounting grooves (18) are arranged along the extending direction of the support side plates (17), and both ends of the conveying roller (4) are rotatably connected in the mounting grooves (18) via bearings (22).

10. The drying mechanism of the circuit board cleaning machine according to claim 9, characterized in that: A card seat (19) is mounted in the mounting groove (18), and each set of card seats (19) includes an upper card slot (20) and a lower card slot (21) arranged in a vertical direction. The bearing (22) is mounted in the lower card slot (21) and the mounting groove (18).

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