A circuit board dust removal device

Abstract

This utility model discloses a circuit board dust removal device, belonging to the field of circuit board dust removal technology. It includes a workbench with a sliding groove having an I-shaped vertical cross-section. A sliding seat with an I-shaped vertical cross-section is slidably connected in the sliding groove, and an n-type movable frame is fixedly connected to the top of the sliding seat. When using this circuit board dust removal device, multiple circuit boards of the same model are first placed on the top of the workbench and placed against the rear side wall of the blocking strip. Then, a forward and reverse motor is started, causing the screw to rotate, which in turn drives the dry ice cleaning machine after it has started. This, combined with the action of the transmission column connected by the connecting block moving in the transmission channel, and the shape design of the transmission channel causing the positioning plate to move towards the multiple circuit boards via the slider, clamping and confining the multiple circuit boards between the blocking strip. Afterward, the cleaning nozzle moves uniformly and at a constant speed above the multiple circuit boards.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board dust removal technology, and specifically relates to a circuit board dust removal device. Background Technology

[0002] A circuit board dust removal device is a specialized device or tool used to remove dust, particulate matter, or other contaminants from the surface and crevices of circuit boards. It aims to ensure the cleanliness of circuit boards and prevent problems such as short circuits, poor heat dissipation, or signal interference caused by dust accumulation.

[0003] Currently, using dry ice cleaning machines to clean circuit boards is a highly efficient, non-contact dust removal / decontamination technology, especially suitable for precision electronic components and hard-to-reach crevices. Its core principle is to utilize the low-temperature impact and sublimation expansion effect of dry ice particles to remove contaminants. No chemical solvents are needed, and no residue is left. The nozzle moves at a uniform speed in a linear or fan-shaped scanning motion to clean contaminated areas. However, existing circuit board dust removal devices have the following drawbacks: they generally require manual operation to move the nozzles and clean the dust on the circuit board, but maintaining a constant moving speed can lead to insufficient cleaning in some areas or damage from excessive impact. Therefore, a new circuit board dust removal device is needed. Utility Model Content

[0004] The purpose of this invention is to provide a circuit board dust removal device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circuit board dust removal device, including a workbench, on which a sliding groove with an I-shaped vertical cross-section is formed, and a sliding seat with an I-shaped vertical cross-section is slidably connected in the sliding groove. An n-shaped movable frame is fixedly connected to the top of the sliding seat, and an n-shaped connecting pipe is embedded in the n-shaped movable frame. One end of the connecting pipe is connected to a cleaning nozzle, and the other end is connected to the dry ice outlet of a dry ice cleaner. The dry ice cleaner is fixedly connected to the bottom of the sliding seat through a C-shaped support frame. A screw is threadedly connected to the sliding seat, and both ends of the screw are rotatably connected to the sliding groove. One end of the screw extends to the outside of the workbench and is fixedly connected to the output shaft of a forward and reverse motor. The forward and reverse motor is fixedly connected to the outer wall of the workbench. A movable linkage positioning component is connected between the front end of the sliding seat and the top end of the workbench; the movable linkage positioning component is used to synchronously limit the movement of multiple circuit boards.

[0006] In a preferred embodiment, the movable linkage positioning component includes a blocking strip fixed to the top of the worktable, and a positioning plate slidably connected to the top of the worktable on the rear side of the blocking strip, the length of the positioning plate being greater than the length of the blocking strip.

[0007] In a preferred embodiment, a slider with a convex vertical cross-section is fixedly connected to the bottom left edge of the positioning plate, and the slider is slidably connected to a groove opened at the top of the workbench.

[0008] In a preferred embodiment, the positioning plate has a transmission channel, and the middle part of the transmission channel has a horizontally arched structure.

[0009] In a preferred embodiment, a transmission column is movably connected in the transmission channel. The transmission column can move in the transmission channel by moving the sliding seat. The diameter of the transmission column is equal to the inner width of the transmission channel, and the bottom end of the transmission column is in contact with the top end of the worktable.

[0010] In a preferred embodiment, the rear end of the transmission column is fixed to the front end of the sliding seat via a connecting block.

[0011] Compared with the prior art, the circuit board dust removal device provided by this utility model has at least the following beneficial effects:

[0012] In this invention, when using the circuit board dust removal device, multiple circuit boards of the same model are first placed on the top of the workbench and placed against the rear side wall of the baffle strip. Then, the forward and reverse motors are started, causing the screw to rotate, which in turn drives the dry ice cleaning machine driven by the sliding seat. The transmission column connected by the connecting block moves in the transmission channel. Through the shape design of the transmission channel, the positioning plate moves towards the multiple circuit boards via the slider and clamps and confines the multiple circuit boards between the baffle strip. Afterward, the cleaning nozzle moves uniformly and evenly above the multiple circuit boards, thereby efficiently cleaning the dust on the surface of the circuit boards. This effectively avoids the problem of difficulty in maintaining a constant moving speed due to manual hand-held cleaning nozzles, and the problem of insufficient cleaning or damage caused by excessive impact in some areas. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional first-view structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall three-dimensional second-view structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the overall three-dimensional third-view structure of this utility model;

[0016] Figure 4 This is an enlarged structural diagram of point A of this utility model.

[0017] In the diagram: 1. Workbench; 11. Sliding seat; 12. Screw; 13. Forward and reverse motor; 14. N-type moving frame; 15. Connecting pipe; 16. Cleaning nozzle; 17. C-type support frame; 18. Dry ice cleaning machine; 2. Mobile linkage positioning assembly; 21. Blocking bar; 22. Positioning plate; 23. Slider; 24. Transmission channel; 25. Transmission column; 26. Connecting block. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments.

[0019] To make the objectives, technical solutions, and advantages of the present utility model embodiments clearer, the technical solutions of the present utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments obtained by those skilled in the art based on the described embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0021] Example

[0022] Currently, using dry ice cleaning machines to clean circuit boards is a highly efficient, non-contact dust removal / decontamination technology, especially suitable for precision electronic components and hard-to-reach crevices. Its core principle is to utilize the low-temperature impact and sublimation expansion effect of dry ice particles to remove contaminants. No chemical solvents are needed, and there is no residue. The nozzle moves at a uniform speed in a linear or fan-shaped scanning motion to clean the contaminated area. However, existing circuit board dust removal devices have the following drawbacks: they generally require manual operation to move the nozzles and clean the dust on the circuit board, but maintaining a constant moving speed can lead to insufficient cleaning in some areas or damage from excessive impact.

[0023] For this purpose, please refer to Figure 1-4This utility model provides a circuit board dust removal device, including: a workbench 1, on which a sliding groove with a vertical cross-section of I-shaped structure is opened, a sliding seat 11 with a vertical cross-section of I-shaped structure is slidably connected in the sliding groove, an n-shaped moving frame 14 is fixedly connected to the top of the sliding seat 11, an n-shaped connecting pipe 15 is embedded in the n-shaped moving frame 14, one end of the connecting pipe 15 is connected to a cleaning nozzle 16, and the other end is connected to the dry ice outlet of a dry ice cleaner 18, the dry ice cleaner 18 is fixedly connected to the bottom end of the sliding seat 11 through a C-shaped support frame 17, a screw 12 is threadedly connected to the sliding seat 11, both ends of the screw 12 are rotatably connected to the sliding groove, one end of the screw 12 extends to the outside of the workbench 1 and is fixedly connected to the output shaft of a forward and reverse motor 13, the forward and reverse motor 13 is fixedly connected to the outer wall of the workbench 1, and a movable linkage positioning component 2 is connected between the front end of the sliding seat 11 and the top end of the workbench 1; the movable linkage positioning component 2 is used to synchronously limit multiple circuit boards.

[0024] The dry ice cleaning machine 18 is a prior art device that can atomize dry ice particles and spray them onto the surface of the circuit board through a cleaning nozzle 16 connected by a connecting pipe 15. The cleaning nozzle 16 has a vacuum structure inside and multiple atomizing nozzles arranged in a rectangular array are provided at the bottom of the cleaning nozzle 16, which are not shown in the attached figure.

[0025] Further as Figure 1-4 As shown, it is worth noting that in order to move with the help of the sliding seat 11 and clamp and fix multiple circuit boards, a movable linkage positioning component 2 is provided, including a blocking strip 21 fixed to the top of the worktable 1. A positioning plate 22 is slidably connected to the top of the worktable 1 on the rear side of the blocking strip 21. The length of the positioning plate 22 is greater than the length of the blocking strip 21. A slider 23 with a convex vertical cross-section is fixed to the left edge of the bottom end of the positioning plate 22. The slider 23 is slidably connected to a groove opened at the top of the worktable 1. A transmission channel 24 is opened on the positioning plate 22. The middle part of the transmission channel 24 has a horizontal arched structure. A transmission column 25 is movably connected in the transmission channel 24. The transmission column 25 can move in the transmission channel 24 by moving the sliding seat 11. The diameter of the transmission column 25 is equal to the inner width of the transmission channel 24. The bottom end of the transmission column 25 is in contact with the top of the worktable 1. The rear end of the transmission column 25 is fixed to the front end of the sliding seat 11 through a connecting block 26.

[0026] The shape design of the transmission channel 24 allows the positioning plate 22 to move forward via the slider 23 as the transmission column 25 moves from right to left. The fixed distance of this movement is equal to the distance between the front end of the positioning plate 22 and the rear end of the placed circuit board. The shape design of the transmission channel 24 also allows the sliding seat 11 to move from right to left and then back from left to right, which can reposition multiple other placed circuit boards. This back-and-forth movement can significantly increase the efficiency of dust cleaning and is suitable for batch cleaning operations.

[0027] The diameter of the transmission column 25 is equal to the inner width of the transmission channel 24 in order to prevent the positioning plate 22 from moving back and forth.

[0028] In summary: When using this circuit board dust removal device, firstly, place multiple circuit boards of the same model on the top of the workbench 1 and abut them against the rear side wall of the baffle strip 21. Then, start the forward and reverse motor 13 to make the screw 12 rotate, which in turn causes the sliding seat 11 to drive the dry ice cleaner 18 after it has started. This, along with the action of the transmission column 25 connected to the connecting block 26 moving in the transmission channel 24, and through the shape design of the transmission channel 24, causes the positioning plate 22 to move towards multiple circuit boards via the slider 23, and clamps and confines the multiple circuit boards between the baffle strip 21. After that, the cleaning nozzle 16 moves uniformly and evenly above the multiple circuit boards, thereby efficiently cleaning the dust on the surface of the circuit boards. This effectively avoids the problem of difficulty in maintaining a constant moving speed due to manual hand-held cleaning nozzle 16, and the problem of insufficient cleaning or damage caused by excessive impact in some areas.

[0029] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by a person skilled in the art to which this utility model pertains. The words "comprising" or "including" and similar terms used in this utility model mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. The words "connected" or "linked" and similar terms are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up," "down," "left," "right," etc., are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circuit board dust removal device, comprising a workbench (1), a sliding groove with an I-shaped vertical cross section on the workbench (1), a sliding seat (11) with an I-shaped vertical cross section slidably connected in the sliding groove, an n-shaped movable frame (14) fixedly connected to the top of the sliding seat (11), an n-shaped connecting pipe (15) embedded in the n-shaped movable frame (14), one end of the connecting pipe (15) connected to a cleaning nozzle (16), and the other end connected to the dry ice outlet of a dry ice cleaner (18), the dry ice cleaner (18) being fixedly connected to the bottom end of the sliding seat (11) via a C-shaped support frame (17), a screw (12) threadedly connected to the sliding seat (11), both ends of the screw (12) being rotatably connected in the sliding groove, one end of the screw (12) extending to the outside of the workbench (1) and fixedly connected to the output shaft of a forward and reverse motor (13), the forward and reverse motor (13) being fixedly connected to the outer wall of the workbench (1), characterized in that, A movable linkage positioning component (2) is connected between the front end of the sliding seat (11) and the top end of the worktable (1); The mobile linkage positioning component (2) is used to simultaneously limit the movement of multiple circuit boards.

2. The circuit board dust removal device according to claim 1, characterized in that: The movable linkage positioning component (2) includes a blocking strip (21) fixed to the top of the workbench (1). The rear side of the blocking strip (21) is provided with a positioning plate (22) slidably connected to the top of the workbench (1). The length of the positioning plate (22) is greater than the length of the blocking strip (21).

3. The circuit board dust removal device according to claim 2, characterized in that: A slider (23) with a convex vertical cross-section is fixed to the bottom left edge of the positioning plate (22), and the slider (23) is slidably connected to the groove opened at the top of the workbench (1).

4. The circuit board dust removal device according to claim 2, characterized in that: The positioning plate (22) has a transmission channel (24), and the middle part of the transmission channel (24) has a horizontal arched structure.

5. A circuit board dust removal device according to claim 4, characterized in that: A transmission column (25) is movably connected in the transmission channel (24). The transmission column (25) can move in the transmission channel (24) by moving the sliding seat (11). The diameter of the transmission column (25) is equal to the inner width of the transmission channel (24). The bottom end of the transmission column (25) is in contact with the top end of the worktable (1).

6. A circuit board dust removal device according to claim 5, characterized in that: The rear end of the transmission column (25) is fixed to the front end of the sliding seat (11) by a connecting block (26).

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