An electronic circuit board surface cleaning device based on electrostatic adsorption principle

Abstract

The application relates to the technical field of electronic circuit board cleaning, and particularly relates to an electronic circuit board surface cleaning device based on the electrostatic adsorption principle, which comprises a sliding support, an adsorption plate, a driving assembly and a shell; the sliding support is installed on the side wall of the shell; the adsorption plate is slidingly installed at the upper end of the sliding support; the adsorption plate is connected with the driving assembly; and the driving assembly is installed in the shell; the adsorption plate is used for cleaning the electronic circuit board through the internal electrostatic generator; the driving assembly drives the adsorption plate to move and overturn; and the adsorption plate is self-cleaned through its gravity after cleaning the electronic circuit board; the sliding support and the adsorption plate are designed, so that the adsorption plate can be flexibly moved and overturned; after cleaning the circuit board in the cleaning process, the adsorption plate can be self-cleaned through the gravity of the cleaning plate, the accumulation of impurities is reduced, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This invention relates to the field of electronic circuit board cleaning technology, and specifically to an electronic circuit board surface cleaning device based on the principle of electrostatic adsorption. Background Technology

[0002] Currently, the cleaning of electronic circuit boards mainly relies on physical methods such as electrostatic adsorption, traditional air blowing, and brushes. Electrostatic adsorption technology attracts micro-dust and impurities adhering to the surface of electronic circuit boards by generating an electrostatic field, and is widely used in the production environment of various electronic devices. Compared with traditional cleaning methods, electrostatic cleaning equipment can effectively reduce damage to electronic components and improve cleaning efficiency due to its non-contact and low-damage characteristics. Therefore, electrostatic adsorption has gradually become a commonly used cleaning method in the electronics industry.

[0003] However, existing electrostatic adsorption cleaning equipment still has some shortcomings in practical applications. First, with the increase in cleaning frequency, impurities tend to accumulate on the equipment surface. Although electrostatic adsorption can attract most dust and impurities, the equipment itself is difficult to clean thoroughly, leading to a gradual decline in cleaning effectiveness during continuous use. Furthermore, the impurities adsorbed on the equipment surface are difficult to remove automatically, often requiring regular manual maintenance and cleaning, which consumes a significant amount of manpower and time. Frequent manual cleaning not only affects production efficiency but also increases maintenance costs. In environments with high cleanliness requirements, this cleaning method cannot guarantee complete prevention of secondary contamination. Simultaneously, traditional electrostatic cleaning equipment often lacks effective self-cleaning functions in its design, leading to the accumulation of residues inside the equipment after prolonged use, necessitating the replacement or cleaning of critical components. This further increases maintenance difficulty and shortens the equipment's lifespan. Summary of the Invention

[0004] The technical problem this invention aims to solve is that existing electrostatic adsorption cleaning equipment tends to accumulate impurities on its surface after repeated use, which shortens the equipment's lifespan due to the inability to thoroughly clean it and leads to an increased replacement frequency.

[0005] To solve the aforementioned technical problem, the present invention adopts the following technical solution: an electronic circuit board surface cleaning device based on the principle of electrostatic adsorption, comprising a sliding bracket, an adsorption plate, a driving component, and a housing; the sliding bracket is installed on the side wall of the housing, the adsorption plate is slidably installed on the upper end of the sliding bracket, the adsorption plate is engaged with the driving component, and the driving component is installed inside the housing; the adsorption plate cleans the electronic circuit board through an internally installed electrostatic generator, and the driving component drives the adsorption plate to move and flip to remove material, and the adsorption plate self-cleans by its own gravity while flipping and removing material.

[0006] Optionally, the sliding bracket includes a base plate, an inclined beam, a support plate, and a slide rail; the base plate is in contact with the ground, the inclined beam is installed at both ends of the base plate, and both ends of the slide rail are respectively connected to the inclined beam; the support plate is installed between the slide rail and the base plate.

[0007] Optionally, the slide rail extends into arc-shaped edges at both ends, which engage with the adsorption plate.

[0008] Optionally, the surface of the support plate is provided with a rectangular slot.

[0009] Optionally, a limiting strip is provided on the side of the slide rail that contacts the adsorption plate.

[0010] Optionally, sliding cylinders are installed at both ends of the adsorption plate, and the surface of the sliding cylinder is provided with a slot. The lower end of the sliding cylinder is provided with a slot for engaging with the limiting strip. A weight block is installed at the bottom of the adsorption plate, and a connecting arm is installed on the side wall of the adsorption plate. The connecting arm is perpendicular to the adsorption plate, and a locking block is provided at the other end of the connecting arm. The locking block is connected to the driving assembly.

[0011] Optionally, a cleaning plate is mounted on the surface of the adsorption plate, and both ends of the cleaning plate are engaged in the slots.

[0012] Optionally, the drive assembly includes a transverse frame, a sliding block, a left rotating wheel, a right rotating wheel, a motor, a transmission belt, and a crossbeam; the transverse frame is mounted on the side wall of the housing, the sliding block is mounted inside the transverse frame, the surface of the sliding block is provided with a rectangular groove, the rectangular groove is located outside the transverse frame, and the rectangular groove is slidably connected to the locking block; the left rotating wheel and the right rotating wheel are mounted on the side wall of the transverse frame through the crossbeam, the output shaft of the motor is rotatably connected to the right rotating wheel, and the surface of the transmission belt is provided with a connecting block, the connecting block being fixedly connected to the sliding block.

[0013] Optionally, the sliding length of the sliding block inside the transverse frame is greater than the length of the slide rail, and the length of the slide rail is greater than the length of the adsorption plate.

[0014] The beneficial effects of this invention are as follows: This invention utilizes a sliding bracket and an adsorption plate design, allowing the adsorption plate to move and rotate flexibly, providing comprehensive coverage of the circuit board surface during cleaning and improving cleaning efficiency. Simultaneously, the adsorption plate, in conjunction with an internal electrostatic generator, effectively adsorbs fine particles, ensuring thorough cleaning. After cleaning the circuit board, the adsorption plate self-cleans under its own weight, reducing the accumulation of impurities, thereby lowering the frequency of manual cleaning and maintenance costs, and extending the equipment's lifespan. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] The above and other aspects of the invention will now be described by way of example only, with reference to the accompanying drawings, in which: Figure 1 This is an overall schematic diagram of the present invention; Figure 2 This is a schematic diagram of the surface structure of the adsorption plate of the present invention; Figure 3 This is a schematic diagram of the sliding support structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the drive component of the present invention; Figure 5 This is a three-dimensional cross-sectional view of the drive component of the present invention; Figure 6 This is a schematic diagram of the adsorption plate structure of the present invention; Figure 7 This is a schematic diagram of the cleaning plate structure of the present invention.

[0017] In the diagram: 1. Sliding bracket; 11. Base plate; 12. Inclined beam; 13. Support plate; 131. Rectangular slot; 14. Slide rail; 141. Arc edge; 142. Limiting strip; 2. Adsorption plate; 21. Sliding cylinder; 22. Slot; 23. Weight block; 24. Connecting arm; 25. Locking block; 26. Cleaning plate; 3. Drive assembly; 31. Horizontal frame; 32. Sliding block; 33. Rectangular slide groove; 34. Left rotating wheel; 35. Right rotating wheel; 36. Motor; 37. Transmission belt; 38. Connecting block; 39. Crossbeam; 4. Housing. Detailed Implementation

[0018] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0019] like Figures 1 to 7As shown, an electronic circuit board surface cleaning device based on the principle of electrostatic adsorption includes a sliding bracket 1, an adsorption plate 2, a driving component 3, and a housing 4. The sliding bracket 1 is installed on the side wall of the housing 4, and the adsorption plate 2 is slidably installed on the upper end of the sliding bracket 1. The adsorption plate 2 is engaged with the driving component 3, which is installed inside the housing 4. The adsorption plate 2 cleans the electronic circuit board through an internal electrostatic generator, and the driving component 3 drives the adsorption plate 2 to move, flip, and remove the material. While flipping and removing the material, the adsorption plate 2 self-cleans by its own gravity.

[0020] like Figure 3 As shown, the sliding bracket 1 includes a base plate 11, an inclined beam 12, a support plate 13, and a slide rail 14; the base plate 11 is in contact with the ground, the inclined beam 12 is installed at both ends of the base plate 11, and both ends of the slide rail 14 are respectively connected to the inclined beam 12; the support plate 13 is installed between the slide rail 14 and the base plate 11; a gap is provided between the sliding bracket 1 and the housing 4, and the distance of the gap is the sum of the width of the rectangular slide groove 33 and the width of the connecting arm 24.

[0021] like Figure 2 and Figure 3 As shown, the slide rail 14 extends arc-shaped edges 141 at both ends, and the arc-shaped edges 141 are movably engaged with the adsorption plate 2; the upper end of the arc-shaped edges 141 is higher than the adsorption plate 2, and can hold the adsorption plate 2 in place, and the arc of the arc-shaped edges 141 is 180°, so as to ensure that the adsorption plate 2 can be rotated under the continuous drive of the connecting arm 24 after being engaged with the arc-shaped edges 141.

[0022] like Figure 3 and Figure 6 As shown, the surface of the support plate 13 is provided with a rectangular slot 131. The rectangular slot 131 is used to provide space for the movement of the weight block 23 set at the lower end of the adsorption plate 2, thereby preventing assembly obstacles. At the same time, it can also provide support for the slide rail 14 and improve the stability of the slide rail 14.

[0023] A limiting strip 142 is provided on the side of the slide rail 14 that contacts the adsorption plate 2. In order to prevent the adsorption plate 2 from becoming unstable during the sliding process on the surface of the slide rail 14, the limiting strip 142 is provided. At the same time, it is engaged with the lower end of the sliding cylinder 21 through a groove. The sliding cylinder 21 is fixedly connected to the adsorption plate 2, so that the sliding cylinder 21 does not roll, but slides on the surface of the slide rail 14. Thus, the limiting strip 142 can effectively restrict the sliding of the adsorption plate 2.

[0024] like Figure 6As shown, sliding cylinders 21 are installed at both ends of the adsorption plate 2. The surface of each sliding cylinder 21 has a groove 22, and the lower end of each sliding cylinder 21 has a groove for engaging with the limiting strip 142. A weight block 23 is installed at the bottom of the adsorption plate 2. A connecting arm 24 is installed on the side wall of the adsorption plate 2, perpendicular to the adsorption plate 2. A locking block 25 is provided at the other end of the connecting arm 24, and the locking block 25 is connected to the driving assembly 3. The grooves 22 on the surface of the sliding cylinder 21 are used to provide cleaning... The starting and ending points of the sliding of the cleaning plate 26, that is, when the adsorption plate 2 reaches the arc edge 141, the transmission belt 37 continuously drives the connecting arm 24 to move, and then the adsorption plate 2 begins to flip, causing the electronic circuit board to detach from the adsorption plate 2. Through gravity, the cleaning plate 26 pushes the electronic circuit board to detach on the one hand, and cleans the adsorption plate 2 on the other hand. A weight block 23 is provided at the bottom of the adsorption plate 2 to stabilize the surface of the adsorption plate 2 and prevent it from tipping over due to insufficient friction.

[0025] In some embodiments, dust collection components can be provided at both ends of the adsorption plate 2. The dust collection components can be selected from dust collection devices capable of adsorbing dust. Depending on the actual application, the dust collection components can be set as a small cylindrical structure and can be selectively placed in the sliding cylinder 21. Then, when the adsorption plate 2 rotates, on the one hand, after the electrostatic adsorption is completed, the electronic circuit board can be detached from the adsorption plate 2 by increasing the tilt angle between the adsorption plate 2 and the sliding bracket 1. On the other hand, during the process of detaching the electronic circuit board, the cleaning plate 26 can automatically slide down according to gravity, while assisting the electronic circuit board to detach from the adsorption plate 2. The cleaning plate 26 also scrapes away the impurities on the surface of the adsorption plate 2 after the electronic circuit board has been electrostatically adsorbed, until it reaches both ends, and the dust collection components adsorb the impurities to achieve single cleaning.

[0026] like Figure 2 and Figure 7 As shown, a cleaning plate 26 is installed on the surface of the adsorption plate 2, and both ends of the cleaning plate 26 are inserted into the slot 22.

[0027] like Figure 4 and Figure 5As shown, the drive assembly 3 includes a transverse frame 31, a sliding block 32, a left rotating wheel 34, a right rotating wheel 35, a motor 36, a transmission belt 37, and a crossbeam 39. The transverse frame 31 is installed on the side wall of the housing 4, the sliding block 32 is installed inside the transverse frame 31, and a rectangular groove 33 is installed on the surface of the sliding block 32. The rectangular groove 33 is located outside the transverse frame 31 and is slidably connected to the locking block 25. The left rotating wheel 34 and the right rotating wheel 35 are installed on the side wall of the transverse frame 31 through the crossbeam 39. The output shaft of the motor 36 is rotatably connected to the right rotating wheel 35. A connecting block 38 is provided on the surface of the transmission belt 37, and the connecting block 38 is fixedly connected to the sliding block 32.

[0028] The sliding block 32 inside the transverse frame 31 can slide for a length greater than the length of the slide rail 14, and the length of the slide rail 14 is greater than the length of the adsorption plate 2.

[0029] During operation, the motor 36 is started, and the rotation of the motor 36 drives the right rotating wheel 35 to rotate. The right rotating wheel 35 drives the connecting block 38 on the surface of the transmission belt 37 through the transmission belt 37. The connecting block 38 is fixedly connected to the sliding block 32, thereby causing the sliding block 32 to slide inside the transverse frame 31. The rectangular slide groove 33 is engaged with the locking block 25. When the rectangular slide groove 33 slides to both ends, because the length of the transverse frame 31 is greater than the length of the slide rail 14, the adsorption plate 2 is driven to flip under the engagement of the arc edge 141. The connecting arm 24 is perpendicular to the adsorption plate 2, and the locking block 25 slides within the rectangular groove 33. Due to gravity, the cleaning plate 26 slides down from top to bottom, pushing the electronic circuit board away from the adsorption plate 2 along its surface, simultaneously cleaning the surface of the adsorption plate 2 to prevent residual impurities. Since the electrostatic generator is installed inside the adsorption plate 2, the side of the electronic circuit board to be cleaned needs to be in contact with the surface of the adsorption plate 2 until the cleaning plate 26 slides to the other side, completing one cleaning cycle. The next cleaning cycle can be performed by adjusting the motor 36. The description herein is provided to enable those skilled in the art to implement or use this disclosure. Various modifications to this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be given the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A surface cleaning device for electronic circuit boards based on the principle of electrostatic adsorption, characterized in that: The device includes a sliding bracket (1), an adsorption plate (2), a driving assembly (3), and a housing (4). The sliding bracket (1) is installed on the side wall of the housing (4), and the adsorption plate (2) is slidably installed on the upper end of the sliding bracket (1). The adsorption plate (2) is engaged with the driving assembly (3), and the driving assembly (3) is installed inside the housing (4). The adsorption plate (2) cleans the electronic circuit board through an internal electrostatic generator, and the driving assembly (3) drives the adsorption plate (2) to move, flip, and remove material. The adsorption plate (2) cleans itself by its own gravity while flipping and removing material. The sliding bracket (1) includes a base plate (11), an inclined beam (12), a support plate (13), and a slide rail (14); the base plate (11) is in contact with the ground, the inclined beam (12) is installed at both ends of the base plate (11), and both ends of the slide rail (14) are connected to the inclined beam (12); the support plate (13) is installed between the slide rail (14) and the base plate (11); A limiting strip (142) is provided on the side of the slide rail (14) that contacts the adsorption plate (2). The adsorption plate (2) is equipped with sliding cylinders (21) at both ends. The surface of the sliding cylinder (21) is provided with a slot (22). The lower end of the sliding cylinder (21) is provided with a slot for engaging with the limiting strip (142). The bottom end of the adsorption plate (2) is equipped with a weight block (23). The side wall of the adsorption plate (2) is equipped with a connecting arm (24). The connecting arm (24) is perpendicular to the adsorption plate (2). The other end of the connecting arm (24) is provided with a locking block (25). The locking block (25) is connected to the driving assembly (3). The drive assembly (3) includes a transverse frame (31), a sliding block (32), a left rotating wheel (34), a right rotating wheel (35), a motor (36), a transmission belt (37), and a crossbeam (39); the transverse frame (31) is installed on the side wall of the housing (4), the sliding block (32) is installed inside the transverse frame (31), the surface of the sliding block (32) is provided with a rectangular groove (33), the rectangular groove (33) is located outside the transverse frame (31), and the rectangular groove (33) is slidably connected to the locking block (25); the left rotating wheel (34) and the right rotating wheel (35) are installed on the side wall of the transverse frame (31) through the crossbeam (39), the output shaft of the motor (36) is rotatably connected to the right rotating wheel (35), the surface of the transmission belt (37) is provided with a connecting block (38), and the connecting block (38) is fixedly connected to the sliding block (32); A cleaning plate (26) is installed on the surface of the adsorption plate (2), and both ends of the cleaning plate (26) are inserted into the slot (22).

2. The electronic circuit board surface cleaning device based on the principle of electrostatic adsorption according to claim 1, characterized in that: The slide rail (14) extends arc-shaped edges (141) at both ends, and the arc-shaped edges (141) engage with the adsorption plate (2).

3. The electronic circuit board surface cleaning device based on the principle of electrostatic adsorption according to claim 1, characterized in that: The surface of the support plate (13) is provided with a rectangular slot (131).

4. The electronic circuit board surface cleaning device based on the principle of electrostatic adsorption according to claim 1, characterized in that: The sliding block (32) inside the transverse frame (31) has a sliding length greater than the length of the slide rail (14), and the length of the slide rail (14) is greater than the length of the adsorption plate (2).

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