Automatic cleaning device for circuit board

Abstract

The utility model discloses an automatic cleaning device for a circuit board, which comprises a circuit board to be cleaned and a bottom plate placed in an ultrasonic cleaning machine, a plurality of rows of vertical rods are arranged on the bottom plate, a limiting channel is formed between every two rows of vertical rods, the circuit board is arranged in the limiting channels, and the circuit board is arranged on the bottom plate. Driving rollers are arranged between the two rows of vertical rods arranged longitudinally, the outer rings of the driving rollers protrude to form pushing parts of eccentric structures, synchronous wheels are installed at one ends of the driving rollers, synchronous belts are installed outside the multiple synchronous wheels in a winding mode, and an elastic mechanism for pressing the synchronous belts is installed on one side of the bottom plate. The circuit board cleaning device is simple in structure, each circuit board can be independently placed through the vertical rods, coverage between opposite circuit boards is avoided, the blocked areas of the circuit boards can be exposed through the rotating driving rollers and the receding grooves in the vertical rods, and the cleaning effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board cleaning, in particular to an automatic cleaning device for circuit boards. Background Art

[0002] With the development of electronic technology, circuit boards are increasingly being used. However, in the actual production process, due to various reasons, the surface of the circuit board may be contaminated with some pollutants. If these pollutants are not removed, they may chemically react with the solder during the welding process, affecting the subsequent use of the circuit board.

[0003] Therefore, whether it is during production assembly or subsequent maintenance, the circuit boards need to be cleaned. The most common way to clean circuit boards is ultrasonic cleaning, which involves immersing the boards in cleaning liquid for cleaning. However, the boards are stacked inside the equipment, and the surfaces cover each other, causing damage to the cleaning area and affecting the cleaning effect. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automatic cleaning device for circuit boards, which can independently place the circuit boards and put them in a displaced state, and remove the covered area to solve the problems raised in the above background technology.

[0005] The utility model is realized through the following technical solutions: an automatic cleaning device for circuit boards, comprising a circuit board to be cleaned and a bottom plate placed inside an ultrasonic cleaning machine, multiple rows of vertical rods are installed on the bottom plate, a limiting channel is formed between every two rows of vertical rods, the circuit boards are arranged in the limiting channels, driving rollers are provided between the two rows of vertical rods arranged longitudinally, the outer ring of the driving roller protrudes to form a pushing part of an eccentric structure, a synchronous wheel is installed at one end of the driving roller, a synchronous belt is installed on the outer coil of the multiple synchronous wheels, and a tensioning mechanism for tightening the synchronous belt is installed on one side of the bottom plate.

[0006] As an optimal technical solution, a fixed plate is installed at both ends of the driving roller at the bottom plate, and a first sealed bearing is embedded in the fixed plate. The roller shafts at both ends of the driving roller are installed in the inner ring of the first sealed bearing, and the roller shaft at one end of the driving roller is extended outward and fixedly connected to the synchronous belt.

[0007] As a preferred technical solution, the tensioning mechanism includes an adjusting plate, multiple screws, multiple tensioning pulleys and nuts. Multiple second sealed bearings are embedded on the inner side of the adjusting plate. A shaft is installed at the center of the tensioning pulley. One end of the shaft is installed in the inner cavity of the second sealed bearing. The tensioning pulleys are arranged between the synchronous pulleys and are in contact with the outer ring surface of the synchronous belt. Multiple positioning holes are provided on the adjusting plate. One end of the screw passes through the positioning hole and is bent and installed on the side of the base plate. The nuts are threadedly connected to the screw.

[0008] As a preferred technical solution, both sides of the vertical rod are recessed to form a plurality of avoidance grooves.

[0009] As a preferred technical solution, a waterproof motor connected to the roller shaft is installed on one of the fixed plates.

[0010] As a preferred technical solution, the bottom plate is covered with water-permeable holes.

[0011] The beneficial effects of the utility model are as follows: the utility model has a simple structure, and each circuit board can be placed independently through the vertical rod, avoiding overlapping between opposite sides, and the previously blocked area of the circuit board can be exposed through the rotating driving roller and the avoidance groove on the vertical rod, so as to ensure the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a side view of the utility model;

[0015] Figure 3 This is a top view of the utility model after removing the circuit board;

[0016] Figure 4 This is a schematic diagram of the structure of the utility model after some vertical rods are further removed.

[0017] Among them, 1. Base plate; 2. Vertical rod; 3. Circuit board; 4. Avoidance groove; 5. Pushing part; 6. Fixed plate; 7. Waterproof motor; 8. Synchronous belt; 9. Adjustment plate; 10. Screw; 11. Nut; 12. Tensioning pulley; 13. Synchronous pulley; 14. Drive roller. DETAILED DESCRIPTION

[0018] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0019] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0020] Any feature disclosed in this specification (including any appended claims, abstract, and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. In other words, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0021] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the utility model is an automatic cleaning device for circuit boards, comprising a circuit board 3 to be cleaned and a base plate 1 placed inside an ultrasonic cleaning machine, wherein multiple rows of vertical rods 2 are installed on the base plate 1, and a limiting channel is formed between each two rows of vertical rods 2, and the circuit boards 3 are arranged in the limiting channel, and a driving roller 14 is provided between the two longitudinally arranged rows of vertical rods 2, and the outer ring of the driving roller 14 protrudes to form a pushing portion 5 of an eccentric structure, and a synchronous wheel 13 is installed at one end of the driving roller 14, and a synchronous belt 8 is installed on the outer coil of the multiple synchronous wheels 13, and a tensioning mechanism for tightening the synchronous belt 8 is installed on one side of the base plate 1.

[0022] In this embodiment, a fixed plate 6 is installed at both ends of the base plate 1 located at the driving roller 14, and a first sealed bearing is embedded on the fixed plate 6. The roller shafts at both ends of the driving roller 14 are installed in the inner ring of the first sealed bearing, and the roller shaft at one end of the driving roller 14 is extended outward and fixedly connected to the synchronous belt 8.

[0023] In this embodiment, the tensioning mechanism includes an adjusting plate 9, multiple screws 10, multiple tensioning pulleys 12 and nuts 11. Multiple second sealed bearings are embedded on the inner side of the adjusting plate 9. A shaft is installed at the center of the tensioning pulley 12, one end of which is installed in the inner cavity of the second sealed bearing. The tensioning pulleys 12 are all arranged between the synchronous pulleys 13 and are all in contact with the outer ring surface of the synchronous belt 8. Multiple positioning holes are provided on the adjusting plate 9. One end of the screw 10 passes through the positioning hole and is bent and installed on the side of the base plate 1. The nuts 11 are all threadedly connected to the screw 10.

[0024] When in use, the nut can be rotated to move downward along the screw rod, and the adjustment plate can be pressed down by the nut. The movement of the adjustment plate synchronously drives the tensioning wheel, and the synchronous belt can be pressed down by the tensioning wheel so that the synchronous belt can fully contact the synchronous wheel.

[0025] In this embodiment, both sides of the vertical rod 2 are recessed to form a plurality of avoidance grooves 4 .

[0026] In this embodiment, a waterproof motor 7 connected to a roller shaft is mounted on one of the fixing plates 6, so that the waterproof motor can be used in liquid.

[0027] In this embodiment, the bottom plate 1 is covered with water-permeable holes, so that the cleaning liquid can pass through the water-permeable holes and contact the circuit board.

[0028] The circuit board can be placed in the limiting channel formed by the vertical rod, and the circuit board placed above can be placed into the interior of the ultrasonic cleaning machine through the bottom plate. During the cleaning process, the waterproof motor can be started, and the start of the waterproof motor drives the synchronous belt and synchronous wheel, and the synchronous wheel can synchronously drive the driving roller. The eccentric pushing part on the driving roller can slowly push the circuit board upward, so that the originally blocked area of the circuit board is moved to the avoidance groove, and the position of the pushing part will also change during the rotation process, so that the side and bottom surfaces of the circuit board can be fully exposed to ensure the quality of cleaning and avoid affecting the cleaning effect due to obstruction.

[0029] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that do not require creative effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. An automatic cleaning device for a circuit board, characterized in that: The invention comprises a circuit board (3) to be cleaned and a bottom plate (1) placed inside an ultrasonic cleaning machine, wherein a plurality of rows of vertical rods (2) are installed on the bottom plate (1), a limiting channel is formed between each two rows of vertical rods (2), and the circuit boards (3) are arranged in the limiting channel, a driving roller (14) is provided between the two rows of vertical rods (2) arranged longitudinally, the outer ring of the driving roller (14) protrudes to form a pushing portion (5) of an eccentric structure, a synchronous wheel (13) is installed at one end of the driving roller (14), a synchronous belt (8) is installed around the outer coils of the plurality of synchronous wheels (13), and a tensioning mechanism for pressing the synchronous belt (8) is installed on one side of the bottom plate (1).

2. The automatic cleaning device for circuit boards according to claim 1, characterized in that: The bottom plate (1) is located at both ends of the driving roller (14) and is installed with a fixed plate (6), and the fixed plate (6) is embedded with a first sealed bearing. The roller shafts at both ends of the driving roller (14) are installed in the inner ring of the first sealed bearing, and the roller shaft at one end of the driving roller (14) is extended outward and fixedly connected to the synchronous belt (8).

3. The automatic cleaning device for circuit boards according to claim 1, characterized in that: The tensioning mechanism comprises an adjusting plate (9), a plurality of screw rods (10), a plurality of tensioning wheels (12) and a nut (11); a plurality of second sealed bearings are embedded on the inner side surface of the adjusting plate (9); a shaft is installed at the center of the tensioning wheel (12); one end of the shaft is installed in the inner cavity of the second sealed bearing; the tensioning wheels (12) are arranged between the synchronous wheels (13) and are arranged in contact with the outer ring surface of the synchronous belt (8); a plurality of positioning holes are provided on the adjusting plate (9); one end of the screw rod (10) passes through the positioning hole and is bent and installed on the side surface of the base plate (1); the nut (11) is threadedly connected to the screw rod (10).

4. The automatic cleaning device for circuit boards according to claim 1, characterized in that: Both sides of the vertical rod (2) are recessed to form a plurality of avoidance grooves (4).

5. The automatic cleaning device for circuit boards according to claim 1, characterized in that: A waterproof motor (7) connected to the roller shaft is installed on one of the fixed plates (6).

6. The automatic cleaning device for circuit boards according to claim 1, characterized in that: The bottom plate (1) is covered with water-permeable holes.

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