On-line cleaning assembly of reflow soldering furnace

Abstract

The utility model discloses an on-line cleaning assembly of a reflow oven. The on-line cleaning assembly comprises a cleaning water tank and an on-line adjusting part. A high-pressure water pipe is arranged on the upper surface of the cleaning water tank; the lower end of the high-pressure water pipe is communicated with the inner lower end of the cleaning water tank; the online adjusting part comprises a sliding groove frame, a sliding plate and a sliding pipe, the sliding groove frame is located on the upper side of the cleaning water tank, the sliding plate is transversely and slidably connected to the interior of the sliding groove frame, the sliding pipe capable of moving up and down is rotationally connected to the middle of the sliding plate, the lower end of the sliding pipe is communicated with the high-pressure water pipe, and a spray head is installed at the upper end of the sliding pipe. According to the online cleaning assembly for the reflow soldering furnace, by adjusting the positions of the nozzles in the vertical direction and the horizontal direction, the occupied space of the cleaning assembly is reduced, cleaning components do not need to be frequently transferred, online cleaning of the reflow soldering furnace is facilitated, the time needed for cleaning of the reflow soldering furnace is shortened, cleaning agents are sprayed more evenly and comprehensively, and the cleaning efficiency is improved. And the cleaning quality of the reflow soldering furnace is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reflow soldering furnaces, in particular to an online cleaning component of a reflow soldering furnace. Background Art

[0002] Printed circuit boards are an important electronic component. Their main function is to connect various electronic components through circuits, playing the role of conduction and transmission. In the production process of printed circuit boards, a reflow oven is needed to firmly bond surface-mounted components to the PCB. After long-term use, residual flux will accumulate inside the reflow oven, especially at the entrance and cooling area, because the flux in these areas is in a gaseous state. If these residues are not cleaned in time, they will affect the technical parameters and use conditions of the reflow oven, and thus affect product quality and consistency.

[0003] In the existing technology, due to the large area occupied by the cleaning components, the traditional cleaning of the reflow soldering furnace mainly relies on manual work. The first choice is to use a scraper to remove large particles of dust and residues in the furnace, and at the same time spray detergent in the furnace to make the cleaning of the furnace more thorough and convenient. However, each cleaning requires the staff to move the external cleaning components to the side of the reflow soldering furnace for use, resulting in a longer cleaning time. In addition, due to the influence of human factors, the spraying of detergent is prone to unevenness, affecting the cleaning effect. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide an online cleaning component for a reflow soldering furnace, which reduces the space occupied by the cleaning component, eliminates the need for frequent transfer of cleaning components, facilitates online cleaning of the reflow soldering furnace, reduces the time required for cleaning the reflow soldering furnace, makes the spraying of the cleaning agent more uniform and comprehensive, improves the cleaning quality of the reflow soldering furnace, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an online cleaning assembly for a reflow oven, comprising a cleaning water tank and online adjustment components;

[0006] Clean water tank: a high-pressure water pipe is provided on its upper surface, and the lower end of the high-pressure water pipe is connected to the lower end of the interior of the clean water tank;

[0007] Online adjustment components: It includes a slide frame, a slide plate and a slide tube. The slide frame is located on the upper side of the cleaning water tank. The slide frame is connected to the slide plate in a horizontal sliding manner. The middle part of the slide plate is rotatably connected to a slide tube that can move up and down. The lower end of the slide tube is connected to the high-pressure water pipe. The upper end of the slide tube is installed with a nozzle. By adjusting the position of the nozzle in the vertical and horizontal directions, the cleaning nozzle can be folded when the reflow oven is working, reducing the space occupied by the cleaning component and eliminating the need to frequently transfer cleaning components. It is convenient to clean the reflow oven online, reducing the time required for cleaning the reflow oven, making the spraying of the detergent more uniform and comprehensive, and improving the cleaning quality of the reflow oven.

[0008] Furthermore, the online adjustment component also includes a connecting shell, a rotating tube and a sealed bearing. The connecting shell is arranged at the upper end of the sliding tube, and the connecting shell is connected to the sliding tube. The rotating tube is rotatably connected in the rotating hole on the surface of the connecting shell through a sealed bearing. A connecting hole is opened at the left end of the outer arc surface of the rotating tube, and nozzles are respectively provided in the liquid outlet holes on the outer arc surface of the rotating tube to adjust the angle of the nozzle.

[0009] Furthermore, it also includes a single-chip microcomputer, which is located on the front side of the cleaning water tank. The input end of the single-chip microcomputer is electrically connected to an external power supply to control the start and stop of the entire device.

[0010] Furthermore, the online adjustment components also include an adjustment rotating tube, a gear and a second motor. The adjustment rotating tube is rotatably connected to the rotating groove in the middle of the skateboard through a bearing, and the sliding tube is vertically slidably connected to the inside of the adjustment rotating tube. The second motor is arranged in the mounting groove at the left end of the skateboard. The lower end of the output shaft of the second motor and the lower end of the adjustment rotating tube are both provided with gears, and the two gears are meshed and connected. The input end of the second motor is electrically connected to the output end of the single-chip microcomputer to provide power for the rotation of the sliding tube.

[0011] Furthermore, the online adjustment components also include a rotating plate and an electric push rod. The electric push rod is arranged at the right end of the skateboard. A rotating plate is provided at the lower end of the telescopic end of the electric push rod. The rotating plate is rotatably connected to the lower end of the sliding tube. The input end of the electric push rod is electrically connected to the output end of the single-chip microcomputer to provide power for the up and down movement of the sliding tube.

[0012] Furthermore, the online adjustment component also includes motor 1, which is arranged inside the connecting shell, and the output shaft of motor 1 is fixedly connected to the left end of the rotating tube. Screw motors are provided at the front and rear ends of the slide frame, and the screws of the screw motors are threadedly connected to the slide. The input ends of the screw motor and motor 1 are electrically connected to the output end of the single-chip microcomputer to provide power for the adjustment of the nozzle.

[0013] Furthermore, a high-pressure pump is connected in series in the middle of the high-pressure water pipe, and the input end of the high-pressure pump is electrically connected to the output end of the single-chip microcomputer to provide power for the high-pressure spraying of the detergent.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] By adjusting the position of the nozzle in the vertical and horizontal directions, the cleaning nozzle can be folded when the reflow oven is working, reducing the space occupied by the cleaning components, eliminating the need to frequently transfer cleaning components, facilitating online cleaning of the reflow oven, reducing the time required for reflow oven cleaning, making the spraying of the detergent more uniform and comprehensive, and improving the cleaning quality of the reflow oven. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic structural diagram of a side cross-section of an online adjustment component of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the front cross-section of the online adjustment component of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the sliding tube of the utility model when viewed from above.

[0020] In the figure: 1 cleaning water tank, 2 high-pressure water pipe, 3 online adjustment parts, 301 slide frame, 302 slide plate, 303 slide pipe, 304 connecting shell, 305 rotating pipe, 306 sealed bearing, 307 motor 1, 308 adjusting rotating pipe, 309 motor 2, 310 gear, 311 electric push rod, 312 rotating plate, 4 nozzle, 5 single-chip microcomputer, 6 screw motor, 7 high-pressure pump. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 This embodiment provides a technical solution: an online cleaning component for a reflow oven, comprising a cleaning water tank 1 and an online adjustment component 3; a high-pressure water pipe 2 is provided on the upper surface of the cleaning water tank 1, and the lower end of the high-pressure water pipe 2 is connected to the lower end of the interior of the cleaning water tank 1 to provide a cleaning agent for cleaning the reflow oven; and further comprising a single-chip microcomputer 5, which is located on the front side of the cleaning water tank 1, and the input end of the single-chip microcomputer 5 is electrically connected to an external power supply.

[0023] The on-line adjustment component 3 includes a slide frame 301, a slide plate 302 and a slide pipe 303. The slide frame 301 is located on the upper side of the cleaning water tank 1. The slide plate 302 is connected to the slide frame 301 in a horizontal sliding manner. The middle part of the slide plate 302 is rotatably connected to the slide pipe 303 which can move up and down. The lower end of the slide pipe 303 is connected to the high-pressure water pipe 2. The upper end of the slide pipe 303 is installed with a nozzle 4. During the operation of the reflow oven, the nozzle 4 is located inside the slide frame 301, which reduces the space occupied by the cleaning component and avoids the cleaning component affecting the operation of the reflow oven. When the reflow oven is finished, the slide pipe 303 moves upward and rotates. The nozzle 4 leaves, and the cleaning agent is sprayed out from the nozzle 4 inside the slide frame 301 to clean the reflow soldering furnace; the online adjustment component 3 also includes a connecting shell 304, a rotating tube 305 and a sealing bearing 306. The connecting shell 304 is arranged at the upper end of the sliding tube 303, and the connecting shell 304 is connected to the sliding tube 303. The rotating hole on the surface of the connecting shell 304 is rotatably connected to the rotating tube 305 through the sealing bearing 306. A connecting hole is provided at the left end of the outer arc surface of the rotating tube 305. The nozzles 4 are respectively arranged in the liquid outlet holes on the outer arc surface of the rotating tube 305. The spray angle of the nozzle 4 is adjusted by the relative rotation of the rotating tube 305 and the connecting shell 304; the online adjustment component Component 3 also includes an adjusting rotating tube 308, a gear 310 and a second motor 309. The adjusting rotating tube 308 is rotatably connected to the rotating groove in the middle of the slide 302 through a bearing. The slide tube 303 is vertically slidably connected to the inside of the adjusting rotating tube 308. The second motor 309 is set in the installation groove at the left end of the slide 302. The lower end of the output shaft of the second motor 309 and the lower end of the adjusting rotating tube 308 are both provided with a gear 310. The two gears 310 are meshed and connected. The input end of the second motor 309 is electrically connected to the output end of the single-chip computer 5. When the second motor 309 is started, the output shaft of the second motor 309 drives the adjusting rotating tube 308 to rotate through the meshing transmission of the two gears 310. , by adjusting the vertical sliding of the rotating tube 308 and the sliding tube 303, the sliding tube 303 rotates along with the adjusting rotating tube 308; the online adjustment component 3 also includes a rotating plate 312 and an electric push rod 311, the electric push rod 311 is arranged at the right end of the slide plate 302, and the lower end of the telescopic end of the electric push rod 311 is provided with a rotating plate 312, and the rotating plate 312 is rotatably connected to the lower end of the sliding tube 303, and the input end of the electric push rod 311 is electrically connected to the output end of the single-chip microcomputer 5. When the electric push rod 311 is started, the telescopic end of the electric push rod 311 drives the rotating plate 312 to move upward, and the sliding tube 303 is driven to move upward through the rotation connection between the rotating plate 312 and the sliding tube 303;Online adjustment component 3 also includes motor 1 307, which is located within connecting housing 304. The output shaft of motor 1 307 is fixedly connected to the left end of rotating tube 305, providing power for its rotation. Screw motors 6 are installed at both the front and rear ends of chute frame 301. The screws of screw motors 6 are threadedly connected to slide 302, providing power for its left and right movement. The input ends of screw motor 6 and motor 1 307 are both electrically connected to the output end of single-chip microcomputer 5. A high-pressure pump 7 is connected in series with the middle portion of high-pressure water pipe 2. The input end of high-pressure pump 7 is electrically connected to the output end of single-chip microcomputer 5, providing power for the high-pressure spraying of detergent.

[0024] The working principle of this utility model is as follows:

[0025] The cleaning component is installed inside the reflow oven. During the operation of the reflow oven, the rotating tube 305 is in a horizontal state and is located inside the slide frame 301, reducing the space occupied by the cleaning component. When the reflow oven is finished, the electric push rod 311 is started by the single chip microcomputer 5. The telescopic end of the electric push rod 311 drives the rotating plate 312 to move upward, and the rotating plate 312 is connected to the rotation of the slide tube 303, driving the slide tube 303 to move upward, so that the rotating tube 305 passes through the opening at the upper end of the slide frame 301 and leaves the slide frame 301. Then the motor 2 309 is started, and the meshing transmission of the two gears 310 is used to make the output shaft of the motor 2 309 drive the adjusting rotating tube 308 to rotate. By adjusting the rotating tube 308 and the vertical sliding of the slide tube 303, the slide tube 303 rotates with the adjusting rotating tube 308, driving the connection The shell 304 and the rotating tube 305 rotate horizontally, so that the rotating tube 305 drives the nozzle 4 to move above the transmission belt of the reflow soldering furnace. According to the different rotation angles of the rotating tube 305, the front and rear positions of the nozzle 4 are changed, and the high-pressure pump 7 is started to make the detergent inside the cleaning water tank 1 be sprayed out from the nozzle 4 at high pressure to clean the inside of the reflow soldering furnace body. During the cleaning process, the motor 307 is started, and the output shaft of the motor 307 drives the rotating tube 305 to rotate, thereby changing the spraying angle of the detergent, and starting the screw motor 6. The screw of the screw motor 6 is threadedly connected to the slide plate 302, driving the slide plate 302 to move left and right in the slide frame 301, thereby changing the spraying position of the detergent, so that the spraying of the detergent is more uniform and comprehensive. Finally, the personnel use a soft cloth to wipe the detergent to achieve the cleaning of the reflow soldering furnace.

[0026] It is worth noting that the single-chip microcomputer 5 disclosed in the above embodiment can use the AT89C4051 model single-chip microcomputer, and the motor 2 309, the electric push rod 311, the screw motor 6, the motor 1 307 and the high-pressure pump 7 can be freely configured according to the actual application scenario. The motor 2 309 and the motor 1 307 can both use the 42HD5002I model stepper waterproof motor, the electric push rod 311 can use the LAM1 model electric push rod, the screw motor 6 can use the 28E245-6.35-115 model screw motor, and the high-pressure pump 7 can use the 40CDL4-50-1.1KW model high-pressure water pump. The single-chip microcomputer 5 controls the operation of the motor 2 309, the electric push rod 311, the screw motor 6, the motor 1 307 and the high-pressure pump 7 using methods commonly used in the prior art.

[0027] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A reflow oven online cleaning assembly, characterized in that: It comprises a clean water tank (1) and an online adjustment component (3); A high-pressure water pipe (2) is provided on the upper surface of the clean water tank (1), and the lower end of the high-pressure water pipe (2) is connected to the lower end of the interior of the clean water tank (1); The online adjustment component (3) comprises a chute frame (301), a slide plate (302) and a slide pipe (303); the chute frame (301) is located on the upper side of the clean water tank (1); the slide plate (302) is connected to the chute frame (301) in a transverse sliding manner; the middle part of the slide plate (302) is connected to the slide pipe (303) which can move up and down in a rotation manner; the lower end of the slide pipe (303) is connected to the high-pressure water pipe (2); and the upper end of the slide pipe (303) is installed with a nozzle (4).

2. The online cleaning assembly for a reflow oven according to claim 1, characterized in that: The online adjustment component (3) further comprises a connecting shell (304), a rotating tube (305) and a sealing bearing (306); the connecting shell (304) is arranged at the upper end of the sliding tube (303); the connecting shell (304) is connected to the sliding tube (303); the rotating tube (305) is rotatably connected in a rotating hole on the surface of the connecting shell (304) via a sealing bearing (306); a connecting hole is provided at the left end of the outer arc surface of the rotating tube (305); and nozzles (4) are respectively provided in the liquid outlet holes on the outer arc surface of the rotating tube (305).

3. The online cleaning assembly for a reflow oven according to claim 2, characterized in that: It also includes a single chip microcomputer (5), which is located on the front side of the clean water tank (1), and an input end of the single chip microcomputer (5) is electrically connected to an external power supply.

4. The online cleaning assembly for a reflow oven according to claim 3, characterized in that: The online adjustment component (3) further comprises an adjustment rotating tube (308), a gear (310) and a second motor (309). The adjustment rotating tube (308) is rotatably connected to a rotating groove in the middle of the slide (302) via a bearing. The slide tube (303) is vertically slidably connected to the inside of the adjustment rotating tube (308). The second motor (309) is arranged in a mounting groove at the left end of the slide (302). The lower end of the output shaft of the second motor (309) and the lower end of the adjustment rotating tube (308) are both provided with a gear (310). The two gears (310) are meshed and connected. The input end of the second motor (309) is electrically connected to the output end of the single-chip microcomputer (5).

5. The online cleaning assembly for a reflow oven according to claim 3, characterized in that: The online adjustment component (3) further comprises a rotating plate (312) and an electric push rod (311), wherein the electric push rod (311) is arranged at the right end of the slide plate (302), and a rotating plate (312) is provided at the lower end of the telescopic end of the electric push rod (311), and the rotating plate (312) is rotatably connected to the lower end of the slide tube (303), and the input end of the electric push rod (311) is electrically connected to the output end of the single chip computer (5).

6. The online cleaning assembly for a reflow oven according to claim 3, characterized in that: The online adjustment component (3) further includes a motor (307), which is arranged inside the connecting shell (304). The output shaft of the motor (307) is fixedly connected to the left end of the rotating tube (305). The front and rear ends of the slide frame (301) are both provided with a screw motor (6). The screws of the screw motor (6) are both threadedly connected to the slide plate (302). The input ends of the screw motor (6) and the motor (307) are both electrically connected to the output end of the single-chip computer (5).

7. The online cleaning assembly for a reflow oven according to claim 3, characterized in that: A high-pressure pump (7) is connected in series in the middle of the high-pressure water pipe (2), and the input end of the high-pressure pump (7) is electrically connected to the output end of the single-chip computer (5).

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