Dust removal device for PCB (Printed Circuit Board) light plate

Abstract

The utility model discloses a dust removal device for a PCB (printed circuit board), which relates to the technical field of circuit board dust removal and comprises a bottom plate, two mounting plates are fixedly mounted at the top end of the bottom plate, clamping blocks are arranged at one ends, far away from the bottom plate, of the mounting plates, a connecting column is further fixedly mounted on one side of the bottom plate, and a shell is fixedly connected to one end, far away from the bottom plate, of the connecting column. A dust removal fan is fixedly installed in the shell, a plurality of dust hoppers are further installed at the bottom end of the shell, and shifting pieces capable of being bent are arranged on the two sides of each dust hopper. The dust removal fan pumps out dust at the PCB light panel through negative pressure, the dust and air are led to the dust removal fan from the position between every two adjacent dust hoppers, the dust on the surface of the PCB light panel is reduced, after the dust removal fan is closed, the air dust falls to the side wall of the shifting piece and moves to the dust storage groove, and the problem that the dust in the air is gradually increased along with blowing of the dust on the surface of the PCB light panel, and the dust removal effect is poor is solved. And more dust in the air is attached to the surface of the circuit board.

Description

Technical Field

[0001] The utility model belongs to the field of circuit boards and relates to a dust removal technology, in particular to a dust removal device for a PCB bare board. Background Art

[0002] In SMT (Surface Mount Technology), the dust removal device for PCB bare board is a device used to remove dust and impurities from the surface of PCB bare board. It is usually a stand-alone device or a component in the SMT production line. The main function of the dust removal device is to keep the surface of the PCB bare board clean to ensure the precise positioning and welding quality of components during the mounting process. On the SMT production line, the PCB bare board goes through a series of process steps, such as gluing, mounting, reflow, etc. These steps will generate impurities such as dust, fiber, and debris. If they are not removed in time, it will affect the precise mounting of components and even cause welding quality problems.

[0003] In the prior art, dust on the surface of a PCB is generally cleaned by a dust removal fan, such as the PCB circuit board high-efficiency dust removal device provided by Chinese Patent Publication No. CN217474293U, which clamps the circuit board between the adjustment rod and the first connecting rod, and the wind generated by the dust removal fan blows on the circuit board body to remove dust from the top of the circuit board body. During dust removal, the operator can rotate the first connecting rod inside the bearing by the handle, so that the first connecting rod drives the circuit board to rotate, and the circuit board can be flexibly turned over. Dust can be removed from both ends of the circuit board without disassembly. However, the above technical solution still has the following problems:

[0004] The applicant believes that the blowing of the dust removal fan causes the dust on the surface of the circuit board to float in the air. As the dust on the surface of the circuit board is blown, the dust in the air gradually increases. When the dust removal of the circuit board is completed, the dust in the air is easy to attach to the circuit board again, resulting in poor dust removal effect of the circuit board. At the same time, the dust content in the air will also affect the health of users. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a dust removal device for a PCB bare board, which solves the problem that dust in the air gradually increases with the blowing of dust on the surface of the circuit board, and more dust in the air adheres to the surface of the circuit board.

[0006] To achieve the above-mentioned purpose, according to an embodiment of the utility model, a dust removal device for a PCB light board is proposed, comprising a base plate, two mounting plates are fixedly installed on the top of the base plate, and clamping blocks are provided on the ends of the mounting plates away from the base plate. A connecting column is also fixedly installed on one side of the base plate, and a shell is fixedly connected to the end of the connecting column away from the base plate. A dust removal fan is fixedly installed inside the shell, and a plurality of ash hoppers are also installed at the bottom end of the shell, and bendable paddles are provided on both sides of the ash hoppers.

[0007] Preferably, the ash hopper is V-shaped.

[0008] Preferably, an ash storage tank for containing dust is provided in the middle of the ash hopper.

[0009] Preferably, a telescopic joint is fixedly connected to the bottom end of the shell, a clamping block is fixedly installed at one end of the telescopic joint away from the shell, and the ash hopper is clamped between the clamping blocks on both sides.

[0010] Preferably, a clamping member is provided between one of the mounting plates and the clamping block.

[0011] Preferably, the clamping member comprises an adjusting shaft rotatably connected to the mounting plate, one end of the adjusting shaft is rotatably connected to a bolt, an inner side wall of the adjusting shaft is slidably connected to a slide cylinder, and the bolt is threadedly connected to the slide cylinder.

[0012] Preferably, one end of the other mounting plate is rotatably connected to a rotating shaft, and the ends of the rotating shaft and the slide cylinder facing each other are fixedly connected to the clamping block.

[0013] Preferably, one end of the rotating shaft away from the clamping block is fixedly connected with a handle.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By arranging a dust removal fan, an ash hopper and a paddle, the dust removal fan draws out the dust at the PCB light board through negative pressure, and the paddle bends inwards due to the negative pressure and the outside air, and the dust and air are led to the dust removal fan from between two adjacent ash hoppers, thereby reducing the amount of dust in the air near the PCB light board and also reducing the dust on the surface of the PCB light board, so as to improve the dust removal effect of the PCB light board; after the dust removal fan is turned off, the paddle bends and flips toward both sides through its own elastic force, so that the air dust drawn into the shell falls onto the side wall of the paddle and moves to the ash storage tank, i.e., the dust is stored to prevent the dust from falling near the PCB light board, so as to reduce the dust falling out of the shell.

[0016] By rotating the bolt, the bolt drives the slide tube to extend outward and causes the clamping blocks on both sides to approach each other, so that PCB boards of different sizes can be clamped. The handle drives the PCB board to rotate through the rotating shaft and the clamping block, so that dust removal operations can be performed on both sides of the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a cross-sectional structural diagram of the utility model;

[0019] Figure 3 It is a cross-sectional structural diagram of the expansion joint of the utility model;

[0020] Figure 4 It is a cross-sectional structural diagram of the clamping member of the utility model;

[0021] Figure 5 for Figure 4 Enlarged structural diagram of point A in the middle.

[0022] The numbers in the figure represent: 1. base plate; 2. mounting plate; 3. handle; 4. clamping piece; 5. connecting column; 6. housing; 7. telescopic joint; 8. dust removal fan; 9. clamping block; 10. ash hopper; 11. ash storage tank; 12. paddle; 13. rotating shaft; 14. clamping block; 15. adjusting shaft; 16. bolt; 17. slide cylinder. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0024] like Figure 1-Figure 4As shown, a dust removal device for a PCB bare board comprises a bottom plate 1, two mounting plates 2 are fixedly mounted on the top of the bottom plate 1, a clamping block 14 is arranged at one end of the mounting plate 2 away from the bottom plate 1, the clamping blocks 14 on both sides are used to clamp the PCB bare board, a clamping member 4 is arranged between one of the mounting plates 2 and the clamping block 14, the clamping member 4 is used to adjust the distance of the clamping block 14, a connecting column 5 is also fixedly mounted on one side of the bottom plate 1, a shell 6 is fixedly connected to one end of the connecting column 5 away from the bottom plate 1, a dust removal fan 8 is fixedly mounted inside the shell 6, the dust removal fan 8 is used to generate negative pressure and extract the dust of the PCB bare board clamped by the clamping block 14 to achieve dust cleaning, a plurality of ash hoppers 10 are also installed at the bottom end of the shell 6, the ash hopper 10 is V-shaped, an ash storage tank 11 is arranged in the middle of the ash hopper 10, the ash storage tank 11 is used to hold dust, and The paddle 12 can be bent. By starting the dust removal fan 8, the dust removal fan 8 draws out the dust at the PCB light board through negative pressure. The paddle 12 is bent inward by the negative pressure and the outside air. At this time, the dust and air are passed to the dust removal fan 8 from between two adjacent ash hoppers 10, reducing the amount of air dust near the PCB light board, and also reducing the dust on the surface of the PCB light board to improve the dust removal effect of the PCB light board. At the same time, the clamping block 14 can rotate relative to the mounting plate 2. When the PCB light board rotates, the dust on both sides is drawn out through the dust removal fan 8. When the dust removal fan 8 is closed, the paddle 12 is bent and flipped toward both sides by its own elastic force, so that the air dust drawn into the shell 6 falls onto the side walls of the paddle 12 and moves to the ash storage tank 11, that is, the dust is stored to prevent the dust from falling near the PCB light board to reduce the dust falling out of the shell 6.

[0025] As an implementation method in this embodiment, Figure 2 and Figure 3 As shown, the bottom end of the shell 6 is fixedly connected with a telescopic joint 7, and a clamping block 9 is fixedly installed at one end of the telescopic joint 7 away from the shell 6. The ash hopper 10 is inserted between the clamping blocks 9 on both sides to facilitate the disassembly of the ash hopper 10. The telescopic joint 7 can be telescoped, and the ash hopper 10 can be conveniently moved to the vicinity of the PCB light board through the telescopic joint 7 to adjust the height for cleaning dust.

[0026] As an implementation method in this embodiment, Figure 1 , Figure 4 and Figure 5As shown, the clamping member 4 includes an adjusting shaft 15 rotatably connected to one of the mounting plates 2, one end of the adjusting shaft 15 is rotatably connected to a bolt 16, an inner side wall of the adjusting shaft 15 is slidably connected to a slide cylinder 17, the bolt 16 is threadedly connected to the slide cylinder 17, one end of the other mounting plate 2 is rotatably connected to a rotating shaft 13, and the ends of the rotating shaft 13 and the slide cylinder 17 facing each other are fixedly connected to a clamping block 14, by rotating the bolt 16, the bolt 16 drives the slide cylinder 17 to extend outward, and causes the clamping blocks 14 on both sides to approach each other, so that PCB light boards of different sizes can be clamped, the end of the rotating shaft 13 away from the clamping block 14 is fixedly connected to a handle 3, the staff rotates the handle 3, the handle 3 drives the PCB light board to rotate through the rotating shaft 13 and the clamping block 14, and the dust removal fan 8 extracts dust at the PCB light board, so that the dust removal operation can be realized on both sides of the PCB light board.

[0027] The working principle of the utility model is as follows: when in use, by placing the PCB light board between the clamping blocks 14 on both sides and rotating the bolt 16, the bolt 16 drives the clamping block 14 to extend through the slide 17 and clamps the PCB light board. The staff can drive the PCB light board to rotate through the handle 3 to start the dust removal fan 8. The dust removal fan 8 extracts the dust at the PCB light board through negative pressure. The paddle 12 is bent inward by the negative pressure and the outside air. At this time, the dust and air are led to the dust removal fan 8 from between the two adjacent ash hoppers 10, reducing the amount of dust in the air near the PCB light board, and also reducing the dust on the surface of the PCB light board, so as to improve the dust removal effect of the PCB light board; after the dust removal fan 8 is closed, the paddle 12 is bent and flipped toward both sides by its own elastic force, so that the air dust sucked into the shell 6 falls onto the side walls of the paddle 12 and moves to the ash storage tank 11, that is, the dust is stored to prevent the dust from falling near the PCB light board, so as to reduce the dust falling out of the shell 6.

[0028] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A dust removal device for a PCB bare board, characterized in that: include: A base plate (1), two mounting plates (2) are fixedly mounted on the top of the base plate (1), and a clamping block (14) is provided at one end of the mounting plates (2) away from the base plate (1). A connecting column (5) is also fixedly mounted on one side of the base plate (1), and a shell (6) is fixedly connected to the end of the connecting column (5) away from the base plate (1). A dust removal fan (8) is fixedly mounted inside the shell (6). A plurality of ash hoppers (10) are also mounted at the bottom end of the shell (6), and bendable paddles (12) are provided on both sides of the ash hoppers (10).

2. The dust removal device for PCB light board according to claim 1, characterized in that: The ash hopper (10) is V-shaped.

3. The dust removal device for PCB light board according to claim 1, characterized in that: An ash storage tank (11) for containing dust is arranged in the middle of the ash hopper (10).

4. The dust removal device for PCB light board according to claim 1, characterized in that: The bottom end of the shell (6) is fixedly connected to a telescopic joint (7), and a clamping block (9) is fixedly installed on one end of the telescopic joint (7) away from the shell (6), and the ash hopper (10) is clamped between the clamping blocks (9) on both sides.

5. The dust removal device for PCB light board according to claim 1, characterized in that: A clamping member (4) is provided between one of the mounting plates (2) and the clamping block (14).

6. The dust removal device for PCB light board according to claim 5, characterized in that: The clamping member (4) comprises an adjusting shaft (15) rotatably connected to the mounting plate (2), one end of the adjusting shaft (15) is rotatably connected to a bolt (16), an inner side wall of the adjusting shaft (15) is slidably connected to a slide cylinder (17), and the bolt (16) is threadedly connected to the slide cylinder (17).

7. The dust removal device for PCB light board according to claim 6, characterized in that: One end of the other mounting plate (2) is rotatably connected to a rotating shaft (13), and the ends of the rotating shaft (13) and the slide cylinder (17) facing each other are fixedly connected to the clamping block (14).

8. The dust removal device for PCB light board according to claim 7, characterized in that: One end of the rotating shaft (13) away from the clamping block (14) is fixedly connected to a handle (3).

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