Cleaning device for printed circuit board processing

Abstract

The utility model discloses a cleaning device for printed circuit board processing, which comprises a cleaning box and a placing frame, a top plate is arranged at the upper end of the cleaning box, a placing port is arranged at the upper end of the top plate, and a box cover is arranged at the placing port; the interior of the cleaning box is divided into a cleaning cavity at the lower half part and a drying cavity at the upper half part; the lifting mechanism is arranged in the cleaning box and used for driving the printed circuit board on the placing frame to ascend and descend, the lifting mechanism comprises a plurality of sets of lifting sliding rails installed on the inner wall of the cleaning box, a lifting base is installed between the lifting sliding rails in a sliding mode, an installation base is further fixed to the cleaning box, and a lifting lead screw is rotatably installed between the installation base and the cleaning box; the printed circuit board cleaning device has the advantages that the printed circuit board cleaning device is simple in structure, printed circuit boards can be conveniently taken and placed, the cleaned printed circuit boards can be dried, water stain residues can be prevented, and accordingly the printed circuit board cleaning device can better meet use requirements.

Description

Technical Field

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

[0002] As is known to all, a printed circuit board cleaning device is an auxiliary device for cleaning the surface of a printed circuit board with acidic and alkaline sprays, and is also widely used in this field; an existing printed circuit board cleaning device comprises a placement rack, a water tank and a motor, both of which are mounted on the placement rack, a cleaning chamber is arranged inside the water tank, a take-in and put-out port is arranged at the top of the water tank, the take-in and put-out port is communicated with the cleaning chamber, a transmission shaft is arranged at the bottom output end of the motor, and a stirring blade is arranged on the transmission shaft, the stirring blade passes through the take-in and put-out port and extends into the cleaning chamber; when using this printed circuit board cleaning device, the printed circuit board is placed into the cleaning chamber from the take-in and put-out port, and the stirring blade is driven by the motor to stir the water for cleaning; during its use, it was found that due to the poor fixing effect of the printed circuit board during stirring, it was often damaged, and the reliability of use was low.

[0003] For example, the Chinese utility model patent with authorization announcement number CN206851156U discloses a printed circuit board cleaning device, which controls the left and right movements of the left and right clamping plates respectively through manual rotation of the left and right threaded tubes, thereby completing the clamping and disassembly of the printed circuit board in the fixed cavity. The device is more convenient to use, and the fixing effect and reliability of use are improved.

[0004] However, after the cleaning is completed, it is inconvenient to take the circuit board out of the device, and the cleaned circuit board cannot be dried, which cannot well meet the use requirements. Utility Model Content

[0005] The purpose of the utility model is to provide a cleaning device for printed circuit board processing to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cleaning device for printed circuit board processing comprises: a cleaning box and a placement rack, wherein a top plate is installed at the upper end of the cleaning box, a placement opening is opened at the upper end of the top plate, and a box cover is installed at the placement opening; the cleaning box is divided into a cleaning chamber in the lower half and a drying chamber in the upper half; a lifting mechanism is arranged in the cleaning box, and is used to drive the printed circuit board on the placement rack to lift and lower, and the lifting mechanism comprises a plurality of lifting slide rails installed on the inner wall of the cleaning box, and a lifting seat is slidably installed between the lifting slide rails, and a mounting seat is also fixed on the cleaning box, and a lifting screw is rotatably installed between the mounting seat and the cleaning box, and a lifting connecting seat is threadedly sleeved on the lifting screw, and the lifting connecting seat is fixedly connected to the end of the lifting seat, and a lifting motor is also fixed on the upper end of the mounting seat, and the output end of the lifting motor is drivingly connected to the shaft end of the lifting screw.

[0008] As a preferred solution, an ultrasonic cleaning module is also installed in the cleaning cavity in the lower half of the cleaning box.

[0009] As a preferred solution, a drying mechanism is installed at the position of the drying chamber in the upper half of the cleaning box, and the drying mechanism includes multiple groups of electric heating rods installed at the rear side of the drying chamber. A drying pipe is also installed outside the cleaning box, and a circulating pump is installed on the drying pipe.

[0010] As a preferred solution, the drying pipe connects the front and rear sides of the cleaning box from the outside.

[0011] As a preferred solution, anti-fall railings extend from the front and rear sides of the upper end of the placement rack, and the anti-fall railings are provided with placement slots for placing printed circuit boards.

[0012] As a preferred solution, a chamfer is provided at the position of the upper end of the anti-fall railing corresponding to the placement of the slot.

[0013] As a preferred solution, limiting protrusions are extended from the left and right sides of the interior of the lifting seat, and limiting grooves are provided at corresponding positions on the outside of the placement rack.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the lifting motor drives the lifting screw to rotate, so that the lifting connection seat threaded on the lifting screw drives the lifting seat to move, thereby driving the placement rack on the lifting seat to move, thereby realizing the upward movement of the printed circuit board inserted on the placement rack, and facilitating the taking and placing of the printed circuit board;

[0015] The air in the drying chamber is heated by an electric heating rod, and at the same time, a circulation pump is started to extract the air in the drying chamber from the front side through a circulation pipe and input it into the drying chamber from the back side, thereby realizing air flow and improving the drying effect. The utility model has a simple structure and is convenient for taking and placing printed circuit boards. At the same time, the cleaned printed circuit boards can be dried to prevent water stains from remaining, and can better meet the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a cleaning device for printed circuit board processing;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of a cleaning device for printed circuit board processing with a cover hidden behind the box;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of a cleaning device for printed circuit board processing after the box cover and the top plate are hidden;

[0019] Figure 4 The present invention is a schematic diagram of the exploded structure of the lifting seat position of a cleaning device for printed circuit board processing.

[0020] In the figure: 1-cleaning box, 11-top plate, 12-box cover, 13-placing port, 14-ultrasonic cleaning module, 2-drying mechanism, 21-drying tube, 22-circulating pump, 23-electric heating rod, 3-lifting mechanism, 31-lifting slide rail, 32-mounting seat, 33-lifting motor, 34-lifting screw, 35-lifting connecting seat, 36-lifting seat, 361-limiting protrusion, 4-placing rack, 41-anti-fall railing, 42-placing slot, 43-limiting groove. DETAILED DESCRIPTION

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

[0022] Example: See Figures 1 to 4, a cleaning device for printed circuit board processing, comprising: a cleaning box 1, a placement rack 4, a top plate 11 is installed on the upper end of the cleaning box 1, a placement opening 13 is opened on the upper end of the top plate 11, and a box cover 12 is installed at the placement opening 13; the cleaning box 1 is divided into a cleaning chamber in the lower half and a drying chamber in the upper half; a lifting mechanism 3 is arranged in the cleaning box 1, and is used to drive the printed circuit board on the placement rack 4 to rise and fall, the lifting mechanism 3 comprises a plurality of lifting rails 31 installed on the inner wall of the cleaning box 1, and a lifting seat 36 is slidably installed between the lifting rails 31, a mounting seat 32 is also fixed on the cleaning box 1, and a lifting screw 34 is rotatably installed between the mounting seat 32 and the cleaning box 1, and a lifting connecting seat 35 is threadedly sleeved on the lifting screw 34, and the lifting connecting seat 35 is fixedly connected to the end of the lifting seat 36, and a lifting motor 33 is also fixed on the upper end of the mounting seat 32, and the output end of the lifting motor 33 is drivingly connected to the shaft end of the lifting screw 34.

[0023] The working principle of the lifting mechanism 3 is: when in use, start the lifting motor 33, and the lifting motor 33 drives the lifting screw 34 to rotate, so that the lifting connecting seat 35 threadedly mounted on the lifting screw 34 drives the lifting seat 36 to move, thereby driving the placement rack 4 on the lifting seat 36 to move, and then realize the upward movement of the printed circuit board inserted on the placement rack 4, which is convenient for taking and placing the printed circuit board.

[0024] As a further solution, an ultrasonic cleaning module 14 is also installed in the cleaning chamber of the lower half of the cleaning box 1. The ultrasonic cleaning module 14 is an existing mature technology, and its working principle is not described here. By setting the ultrasonic cleaning module 14, it is convenient to clean the printed circuit board.

[0025] As a further solution, a drying mechanism 2 is installed at a position corresponding to the drying chamber in the upper half of the cleaning box 1, and the drying mechanism 2 includes a plurality of electric heating rods 23 installed at the rear side of the drying chamber. A drying pipe 21 is also installed on the outside of the cleaning box 1, and a circulating pump 22 is installed on the drying pipe 21. In this embodiment, the drying pipe 21 connects the front and rear sides of the cleaning box 1 from the outside.

[0026] The working principle of the drying mechanism 2 is: during drying, the air in the drying chamber is heated by the electric heating rod 23. At the same time, the circulation pump 22 is started to extract the air in the drying chamber from the front side through the circulation pipe 21 and input it into the drying chamber from the back side, thereby realizing the flow of air and improving the drying effect.

[0027] As a further solution, anti-fall railings 41 are extended on the front and rear sides of the upper end of the placement rack 4, and a placement slot 42 for placing a printed circuit board is opened on the anti-fall railing 41. The position of the upper end of the anti-fall railing 41 corresponding to the placement slot 42 is chamfered, and limiting protrusions 361 are extended on the left and right sides of the lifting seat 36, and a limiting groove 43 is opened at the corresponding position on the outer side of the placement rack 4.

[0028] When in use, the printed circuit board to be cleaned is inserted into the placement rack 4 through the placement slot 42, and then the limiting grooves 43 on both sides of the placement rack 4 are aligned with the limiting protrusions 361, and then the placement rack 4 is inserted into the lifting seat 35, and then the cleaning work can be carried out.

[0029] The working principle of the utility model is as follows: when in use, first open the box cover 12, then insert the placement rack 4 with the printed circuit board inserted into the lifting seat 35, and then drive the placement rack 4 downward through the lifting mechanism 3, so that the printed circuit board is moved into the cleaning chamber, then, the box cover 12 is closed, and the printed circuit board is cleaned by the ultrasonic cleaning module 14. After the cleaning is completed, the printed circuit board is driven upward by the lifting mechanism 3 to move it into the drying chamber, and then, the printed circuit board is dried by the drying mechanism 2.

[0030] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

Claims

1. A cleaning device for printed circuit board processing, characterized in that: include: A cleaning box (1) and a placement rack (4), wherein a top plate (11) is installed at the upper end of the cleaning box (1), a placement opening (13) is opened at the upper end of the top plate (11), and a box cover (12) is installed at the placement opening (13); the cleaning box (1) is divided into a cleaning chamber in the lower half and a drying chamber in the upper half; A lifting mechanism (3) is arranged in a cleaning box (1) and is used to drive the printed circuit board on the placement rack (4) to lift and lower. The lifting mechanism (3) comprises a plurality of lifting rails (31) mounted on the inner wall of the cleaning box (1). A lifting seat (36) is slidably mounted between the lifting rails (31). A mounting seat (32) is also fixed on the cleaning box (1). A lifting screw (34) is rotatably mounted between the mounting seat (32) and the cleaning box (1). A lifting connecting seat (35) is threadedly mounted on the lifting screw (34). The lifting connecting seat (35) is fixedly connected to the end of the lifting seat (36). A lifting motor (33) is also fixed on the upper end of the mounting seat (32). The output end of the lifting motor (33) is drivingly connected to the shaft end of the lifting screw (34).

2. A cleaning device for printed circuit board processing according to claim 1, characterized in that: An ultrasonic cleaning module (14) is also installed in the cleaning chamber in the lower half of the cleaning box (1).

3. A cleaning device for printed circuit board processing according to claim 2, characterized in that: A drying mechanism (2) is installed at a position of the upper half of the cleaning box (1) corresponding to the drying chamber, and the drying mechanism (2) comprises a plurality of groups of electric heating rods (23) installed at a rear position inside the drying chamber. A drying pipe (21) is also installed outside the cleaning box (1), and a circulation pump (22) is installed on the drying pipe (21).

4. A cleaning device for printed circuit board processing according to claim 3, characterized in that: The drying pipe (21) connects the front and rear sides of the cleaning box (1) from the outside.

5. A cleaning device for printed circuit board processing according to claim 4, characterized in that: Anti-fall railings (41) extend from the front and rear sides of the upper end of the placement rack (4), and a placement slot (42) for placing a printed circuit board is provided on the anti-fall railing (41).

6. A cleaning device for printed circuit board processing according to claim 5, characterized in that: The upper end of the anti-fall railing (41) is provided with a chamfer at a position corresponding to the placement of the slot (42).

7. A cleaning device for printed circuit board processing according to claim 6, characterized in that: Limiting protrusions (361) are also extended from the left and right sides of the interior of the lifting seat (36), and limiting grooves (43) are provided at corresponding positions on the outside of the placement rack (4).

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