Full-automatic PCB cleaning machine

Abstract

The utility model discloses a full-automatic PCB (printed circuit board) cleaning machine, which belongs to the technical field of PCB processing equipment, and comprises a cabinet body I, the left side end of the cabinet body I is provided with a storage groove, the front end and the rear end of the cabinet body I are respectively provided with a ventilation plate in an embedded manner, and the right end of the cabinet body I is movably connected with a maintenance door plate I; the upper end of the first cabinet body is fixedly connected with the second cabinet body, PCBs needing to be cleaned are put into the conveying assembly through the back side of the second cabinet body, the PCBs are preliminarily cleaned through the conveying assembly, then the PCBs are continuously conveyed, the preliminarily cleaned PCBs fall into the cleaning assembly, and deep cleaning work is conducted. Therefore, pollutants such as dust, fragments and the like in the manufacturing process, such as residues of soldering flux and adhesive on the surface of the PCB, are cleaned up, the surface of the PCB is ensured to be effectively cleaned, the phenomenon of failure of the PCB caused by resistance and electric leakage is avoided, and the service life of a product is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board processing equipment, and more specifically to a full-automatic PCB cleaning machine. Background Art

[0002] PCB board, Chinese name is printed circuit board, also known as printed circuit board, printed circuit board, is an important electronic component. After electronic equipment uses printed boards, due to the consistency of similar printed boards, errors in manual wiring are avoided, and automatic insertion or mounting, automatic soldering, and automatic detection of electronic components can be realized, ensuring the quality of electronic equipment, improving labor productivity, reducing costs, and facilitating maintenance. Printed boards have developed from single-layer to double-sided, multi-layer and flexible, and they still maintain their respective development trends.

[0003] At present, PCB circuit boards are widely used in China, but pollutants are generated during the manufacturing process of printed circuit boards, including dust and debris from the manufacturing process such as flux and adhesive residues. If the PCB board cannot effectively ensure a clean surface, resistance and leakage will cause the PCB circuit board to fail, thus affecting the service life of the product. Therefore, cleaning the PCB circuit board is an important step in the manufacturing process. For this reason, this scheme proposes a fully automatic PCB cleaning machine. Utility Model Content

[0004] 1. Technical problems to be solved:

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a fully automatic PCB cleaning machine, which puts the PCB circuit board to be cleaned into the interior of the conveying component from the back side of the second cabinet, and the conveying component performs preliminary cleaning on it. Then, under continuous conveyance, the PCB circuit board after the preliminary cleaning falls into the interior of the cleaning component for deep cleaning, so that the residual flux and adhesive on the surface of the PCB circuit board and other pollutants such as dust and debris in the manufacturing process are cleaned, ensuring that the surface of the PCB circuit board is effectively cleaned, avoiding the phenomenon of PCB circuit board failure caused by resistance and leakage, thereby improving the service life of the product.

[0006] 2. Technical solution:

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A fully automatic PCB cleaning machine comprises a cabinet body 1, a storage groove is provided at the left end of the cabinet body 1, air permeable plates are embedded and installed at both the front and rear ends of the cabinet body 1, a maintenance door panel 1 is movably connected to the right end of the cabinet body 1, a cabinet body 2 is fixedly connected to the upper end of the cabinet body 1, a maintenance door panel 2 is movably connected to the left end of the cabinet body 2, a built-in chamber is provided at the front end of the cabinet body 2, a feed port is provided at the rear end of the cabinet body 2, a maintenance door panel 3 is movably connected between the inner walls of the built-in chamber, a conveying component is installed inside the cabinet body 2, a cleaning component is installed inside the storage groove, and a plurality of legs are fixedly connected to the bottom end of the cabinet body 1.

[0009] A further improvement is that the conveying component includes an adjusting component 1 installed between the left and right inner walls of the cabinet 2, a connecting plate 1 is fixedly connected to the inner wall of one side of the cabinet 2, the connecting plate 1 is located on the upper side of the adjusting component 1, and a connecting plate 2 is provided on the inner wall of the other side of the cabinet 2, the connecting plate 2 is movably connected to the adjusting component 1, and two dust removal rollers symmetrically distributed up and down are rotatably connected between the left and right inner walls of the cabinet 2, wherein the side end of the upper dust removal roller is installed with the adjusting component 2.

[0010] A further improvement is that the adjustment component 1 includes a support box fixedly connected between the left and right inner walls of the second cabinet, a transmission rod is rotatably connected between the inner walls of the support box, one end of the transmission rod passes through the outside of the support box, a motor is installed on the outer end of the transmission rod, and a threaded sleeve is threadedly connected to the outer end of the transmission rod. The threaded sleeve is located between the inner walls of the support box and fixedly connected to the bottom of the connecting plate 2.

[0011] A further improvement is that the second adjustment component includes a positioning seat fixedly connected to the inner wall of one side of the cabinet body, a rectangular sliding hole is opened at the side end of the positioning seat, a column is fixedly connected to the inner bottom of the rectangular sliding hole, a slider 1 is slidably connected between the inner walls of the rectangular sliding hole, a spring is installed between the slider 1 and the column, a positioning bolt is installed through one end of the slider 1, and a transmission bearing is sleeved on the other end of the positioning bolt, and the transmission bearing is fixedly connected to a dust removal roller.

[0012] A further improvement is that the cleaning component includes a cleaning box arranged between the inner walls of the storage groove, a slide groove is provided on the side wall of the cleaning box, a slider 2 is slidably connected between the inner walls of the slide groove, convex grooves are provided at both ends of the left and right ends of the slider 2, an adsorption part is installed between the inner walls of the convex grooves, a guide plate is fixedly connected between the inner walls of the cabinet body 1, the upper end of the guide plate is located on one side of the dust removal roller, and the lower end of the guide plate is located on the upper side of the cleaning box, a filter screen is fixedly connected between the inner walls of the cleaning box, and the filter screen is located on the lower side of the slider 2.

[0013] A further improvement is that the adsorption component includes a convex block provided between the inner walls of the convex groove, the side end of the convex block is fixedly connected to the adsorption pad, the upper end of the convex block is fixedly connected to the positioning plate, and the upper end of the positioning plate is fixedly connected to the handle.

[0014] A further improvement is that a transducer and an ultrasonic generator are respectively installed on the bottom and side walls of the cleaning box, and the interior of the cleaning box is filled with a cleaning agent, which is composed of a certain amount of active agent and additives.

[0015] 3. Beneficial effects:

[0016] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0017] The utility model has a reasonable design. The PCB circuit board to be cleaned is placed into the conveying component from the back side of the second cabinet. The conveying component performs preliminary cleaning on the PCB circuit board. Then, under continuous conveyance, the PCB circuit board after preliminary cleaning falls into the cleaning component for deep cleaning. Thus, the residual flux and adhesive on the surface of the PCB circuit board and other pollutants such as dust and debris in the manufacturing process are cleaned, thereby ensuring that the surface of the PCB circuit board is effectively cleaned, avoiding the phenomenon of failure of the PCB circuit board due to resistance and leakage, and thus improving the service life of the product.

[0018] During use, the personnel can adjust the adjustment component 1 to change the distance between the connecting plate 1 and the connecting plate 2, so as to be suitable for cleaning work of PCB circuit boards of various sizes on the market;

[0019] During use, the personnel can adjust the second component to change the gap between the two dust removal rollers, which is beneficial for cleaning PCB circuit boards with different thicknesses and diameters, and has a wide range of applications.

[0020] During use, the personnel can fill the cleaning box with cleaning agent in advance, so that the PCB circuit board after preliminary cleaning will finally fall into it; then use the ultra-high frequency to convert into kinetic energy in the liquid medium to produce a cavitation effect, forming countless tiny bubbles, and then hit the surface of the PCB circuit board to make the surface dirt fall off, and because of the liquid, as long as the liquid can contact the surface, it can be cleaned in place without leaving dead corners, thereby achieving a deep cleaning effect, and can work on each surface of multiple PCB circuit boards at the same time, effectively restore, improve the capacity of pads and components, and reduce electromagnetic interference, finally rinse the PCB circuit board with clean water and dry it, and the cleaning work of the PCB circuit board can be completed.

[0021] It should be noted that the structures not introduced in the present invention are not related to the design points and improvement directions of the present invention, and are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the overall front side of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the overall back of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the conveying assembly of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the adjustment component 1 of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the adjustment component 2 of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the cleaning component of the utility model;

[0028] Figure 7 It is a structural schematic diagram of the adsorption component of the utility model.

[0029] Description of the numbers in the figure:

[0030] 1. Cabinet 1; 11. Storage slot; 12. Ventilation plate; 13. Maintenance door panel 1; 2. Cabinet 2; 21. Maintenance door panel 2; 22. Built-in chamber; 23. Maintenance door panel 3; 24. Feed port; 3. Conveying assembly; 31. Adjustment assembly 1; 311. Support box; 312. Transmission rod; 313. Motor; 314. Threaded sleeve; 32. Connection plate 1; 33. Connection plate 2; 34. Transmission belt; 35. Dust removal roller; 36. Adjustment assembly Part 2; 361, positioning seat; 362, rectangular sliding hole; 363, column; 364, slider 1; 365, spring; 366, rotating bearing; 367, positioning bolt; 4, cleaning component; 41, cleaning box; 42, slide; 43, slider 2; 431, convex groove; 44, adsorption part; 441, convex block; 442, adsorption pad; 443, positioning plate; 444, handle; 45, guide plate; 46, filter; 5, support foot. DETAILED DESCRIPTION

[0031] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0035] See also Figure 1-7A fully automatic PCB cleaning machine comprises a cabinet 1, a storage slot 11 is provided at the left end of the cabinet 1, air permeable plates 12 are embedded and installed at the front and rear ends of the cabinet 1, a maintenance door panel 13 is movably connected to the right end of the cabinet 1, a cabinet 2 is fixedly connected to the upper end of the cabinet 1, a maintenance door panel 21 is movably connected to the left end of the cabinet 2, a built-in chamber 22 is provided at the front end of the cabinet 2, a feed port 24 is provided at the rear end of the cabinet 2, a maintenance door panel 3 23 is movably connected between the inner walls of the built-in chamber 22, a conveying component 3 is installed inside the cabinet 2, a cleaning component 4 is installed inside the storage slot 11, and a plurality of legs 5 are fixedly connected to the bottom end of the cabinet 1.

[0036] During use of this solution, in order to ensure that the surface of the existing PCB circuit board can be effectively kept clean during subsequent use, and to avoid the failure of the PCB circuit board caused by resistance and leakage, thereby extending the service life of the product, in this embodiment, the PCB circuit board to be cleaned can be placed into the conveying component 3 from the back side of the cabinet 2, and the conveying component 3 performs a preliminary cleaning on it. Then, under continuous transportation, the PCB circuit board after the preliminary cleaning falls into the cleaning component 4 for deep cleaning, so that the residual flux and adhesive on the surface of the PCB circuit board and other pollutants such as dust and debris in the manufacturing process are cleaned, ensuring that the PCB circuit board effectively ensures a clean surface, avoiding the failure of the PCB circuit board caused by resistance and leakage, thereby extending the service life of the product.

[0037] See also Figure 1-5 The conveying component 3 includes an adjusting component 31 installed between the left and right inner walls of the cabinet body 2, a connecting plate 32 is fixedly connected to the inner wall of one side of the cabinet body 2, the connecting plate 32 is located on the upper side of the adjusting component 31, and a connecting plate 33 is provided on the inner wall of the other side of the cabinet body 2, the connecting plate 33 is movably connected to the adjusting component 31, and two dust removal rollers 35 symmetrically distributed up and down are rotatably connected between the left and right inner walls of the cabinet body 2, wherein an adjusting component 36 is installed on the side end of the upper dust removal roller 35.

[0038] During the use of this solution, the personnel can place the PCB circuit board to be cleaned in the gap between the transmission belt 34 and the connecting plate 1 32 and the connecting plate 2 33 on the back of the cabinet body 2, thereby conveying the PCB circuit board to be cleaned between the two dust removal rollers 35 under the transmission of the transmission belt 34, thereby performing preliminary cleaning of the dust on the surface of the PCB circuit board under the adhesion effect of the two dust removal rollers 35, and then gradually penetrating the PCB circuit board through the dust removal rollers 35 and finally falling into the cleaning component 4, and performing deep cleaning again, effectively ensuring the cleanliness of the surface of the PCB circuit board;

[0039] During use, the operator can also adjust the adjustment component 1 31 to change the distance between the connecting plate 1 32 and the connecting plate 2 33, so as to be suitable for cleaning work of PCB circuit boards of various sizes on the market;

[0040] Furthermore, the personnel can also change the gap between the two dust removal rollers 35 by adjusting the adjustment component 2 36, thereby facilitating the cleaning of PCB circuit boards with different thicknesses and diameters, and having a wide range of applications.

[0041] See also Figure 1-4 The adjustment component 1 31 includes a support box 311 fixedly connected between the left and right inner walls of the cabinet body 2, a transmission rod 312 is rotatably connected between the inner walls of the support box 311, one end of the transmission rod 312 penetrates to the outside of the support box 311, a motor 313 is installed on the outer end of the transmission rod 312, and a threaded sleeve 314 is threadedly connected to the outer end of the transmission rod 312. The threaded sleeve 314 is located between the inner walls of the support box 311 and is fixedly connected to the bottom of the connecting plate 2 33.

[0042] During use of the present solution, when personnel need to clean PCB circuit boards of various sizes, they can drive the motor 313 to cause the transmission rod 312 to rotate synchronously. Since the transmission rod 312 is threadedly connected with the threaded sleeve 314, and the threaded sleeve 314 is limited by the inside of the support box 311, the threaded sleeve 314 converts the rotational force exerted on the transmission rod 312 into linear motion, so that under the drive of the motor 313, the connecting plate 33 can achieve left and right displacement movement, thereby adjusting the distance between the connecting plate 1 32 and the connecting plate 2 33 so that it can be suitable for the transportation of PCB circuit boards of other different diameters.

[0043] See also Figure 1-3 and Figure 5 The adjustment component 2 36 includes a positioning seat 361 fixedly connected to the inner wall of one side of the cabinet body 2 2, a rectangular sliding hole 362 is opened at the side end of the positioning seat 361, a column 363 is fixedly connected to the inner bottom of the rectangular sliding hole 362, a slider 1 364 is slidably connected between the inner walls of the rectangular sliding hole 362, a spring 365 is installed between the slider 1 364 and the column 363, a positioning bolt 367 is installed through one end of the slider 1 364, and a transmission bearing 366 is sleeved on the other end of the positioning bolt 367, and the transmission bearing 366 is fixedly connected to a dust removal roller 35.

[0044] During use of the present solution, when personnel need to adjust the upper and lower gaps between the dust removal rollers 35, they can open the maintenance door panel 21 and then gradually loosen the positioning bolts 367 to cause the slider 364 to no longer be subjected to the pressure, so that it can be able to achieve the upper and lower positions inside the rectangular slide hole 362. Since the transmission bearing 366 is connected to one end of the dust removal roller 35, when the slider 364 moves up and down, the dust removal roller 35 is displaced accordingly. After the personnel adjusts the gap to a suitable gap, they tighten the positioning bolts 367 to cause the slider 364 to be subjected to the pressure from the left and right sides again, so that the slider 364 can be positioned at this position, thereby completing the adjustment of the gap between the dust removal rollers 35 to achieve better cleaning work.

[0045] See also Figure 1-2 and Figure 6-7 The cleaning component 4 includes a cleaning box 41 provided between the inner walls of the storage groove 11, a slide groove 42 is provided on the side wall of the cleaning box 41, a slider 43 is slidably connected between the inner walls of the slide groove 42, and a convex groove 431 is provided at both ends of the slider 43, and an adsorbent 44 is installed between the inner walls of the convex groove 431. A guide plate 45 is fixedly connected between the inner walls of the cabinet 1, and the upper end of the guide plate 45 is located on one side of the dust removal roller 35, and the lower end of the guide plate 45 is located on the upper side of the cleaning box 41, and a filter screen 46 is fixedly connected between the inner walls of the cleaning box 41, and the filter screen 46 is located on the lower side of the slider 43.

[0046] More specifically, the adsorption component 44 includes a convex block 441 provided between the inner walls of the convex groove 431, the side end of the convex block 441 is fixedly connected to the adsorption pad 442, the upper end of the convex block 441 is fixedly connected to the positioning plate 443, and the upper end of the positioning plate 443 is fixedly connected to the handle 444.

[0047] More specifically, a transducer and an ultrasonic generator are installed on the bottom and side walls of the cleaning box 41 respectively, and the interior of the cleaning box 41 is filled with a cleaning agent, which is composed of a certain amount of active agent and additives.

[0048] During use of the present solution, after the PCB circuit board is preliminarily cleaned between the dust removal rollers 35, it continuously moves down along the guide plate 45 provided below to the inside of the cleaning box 41, and inside the cleaning box 41, the personnel fill the cleaning agent in advance, so that the PCB circuit board after the preliminarily cleaning finally falls into the inside;

[0049] Then, the ultra-high frequency is converted into kinetic energy in the liquid medium to produce a cavitation effect, forming countless tiny bubbles, which then hit the surface of the PCB circuit board to remove the surface dirt. Moreover, as long as the liquid can contact the surface, it can be cleaned in place without leaving dead corners, thereby achieving a deep cleaning effect. It can also work on each surface of multiple PCB circuit boards at the same time, effectively restoring, improving the capacity of pads and components, and reducing electromagnetic interference;

[0050] Then the dust and sediment fall to the lower side of the filter 46 to avoid adhering to the surface of the PCB again, while some floating materials are suspended on the water surface. When the personnel take it out, the personnel move the slider 43 left and right to prompt the adsorption pad 442 to adsorb the impurities suspended on the surface to avoid the impurities adhering to the surface when the PCB is taken out later. Finally, the PCB is rinsed with clean water and dried, and the cleaning work of the PCB is completed.

[0051] When subsequent personnel clean the impurities adhering to the surface of 422 or replace the entire thing, they can pull the handle 444 upward to cause the convex block 441 to be pulled out of the convex groove 431, thereby completing the removal of the entire adsorption part 44 for replacement or cleaning.

[0052] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A fully automatic PCB cleaning machine, comprising a cabinet (1), characterized in that: The left end of the cabinet body 1 (1) is provided with a storage groove (11), the front and rear ends of the cabinet body 1 (1) are both embedded with air permeable plates (12), the right end of the cabinet body 1 (1) is movably connected with a maintenance door panel 1 (13), the upper end of the cabinet body 1 (1) is fixedly connected with the cabinet body 2 (2), the left end of the cabinet body 2 (2) is movably connected with a maintenance door panel 2 (21), the front end of the cabinet body 2 (2) is provided with a built-in chamber (22), the rear end of the cabinet body 2 (2) is provided with a feed port (24), the inner walls of the built-in chamber (22) are movably connected with a maintenance door panel 3 (23), the interior of the cabinet body 2 (2) is provided with a conveying component (3), the interior of the storage groove (11) is provided with a cleaning component (4), and the bottom end of the cabinet body 1 (1) is fixedly connected with a plurality of legs (5).

2. A fully automatic PCB cleaning machine according to claim 1, characterized in that: The conveying assembly (3) comprises an adjusting assembly (31) installed between the left and right inner walls of the second cabinet (2); a connecting plate (32) is fixedly connected to the inner wall of one side of the second cabinet (2); the connecting plate (32) is located on the upper side of the adjusting assembly (31); a connecting plate (33) is provided on the inner wall of the other side of the second cabinet (2); the connecting plate (33) is movably connected to the adjusting assembly (31); two dust removal rollers (35) symmetrically distributed up and down are rotatably connected between the left and right inner walls of the second cabinet (2); wherein the side end of the dust removal roller (35) on the upper side is installed with an adjusting assembly (36).

3. A fully automatic PCB cleaning machine according to claim 2, characterized in that: The first adjustment component (31) comprises a support box (311) fixedly connected between the left and right inner walls of the second cabinet (2); a transmission rod (312) is rotatably connected between the inner walls of the support box (311); one end of the transmission rod (312) passes through the outer side of the support box (311); a motor (313) is installed at the outer end of the transmission rod (312); a threaded sleeve (314) is threadedly connected to the outer end of the transmission rod (312); the threaded sleeve (314) is located between the inner walls of the support box (311) and is fixedly connected to the bottom of the second connection plate (33).

4. The fully automatic PCB cleaning machine according to claim 2, characterized in that: The second adjustment component (36) comprises a positioning seat (361) fixedly connected to the inner wall of one side of the second cabinet (2); a rectangular sliding hole (362) is opened at the side end of the positioning seat (361); a column (363) is fixedly connected to the inner bottom of the rectangular sliding hole (362); a slider (364) is slidably connected between the inner walls of the rectangular sliding hole (362); a spring (365) is installed between the slider (364) and the column (363); a positioning bolt (367) is installed through one end of the slider (364); a transmission bearing (366) is sleeved on the other end of the positioning bolt (367); and the transmission bearing (366) is fixedly connected to a dust removal roller (35).

5. The fully automatic PCB cleaning machine according to claim 1, characterized in that: The cleaning assembly (4) comprises a cleaning box (41) provided between the inner walls of the storage groove (11), a sliding groove (42) being provided on the side wall of the cleaning box (41), a sliding block (43) being slidably connected between the inner walls of the sliding groove (42), a convex groove (431) being provided at both left and right ends of the sliding block (43), an adsorbent (44) being installed between the inner walls of the convex groove (431), a guide plate (45) being fixedly connected between the inner walls of the cabinet body (1), an upper end of the guide plate (45) being located on one side of the dust removal roller (35), and a lower end of the guide plate (45) being located on the upper side of the cleaning box (41), a filter screen (46) being fixedly connected between the inner walls of the cleaning box (41), and the filter screen (46) being located on the lower side of the sliding block (43).

6. The fully automatic PCB cleaning machine according to claim 5, characterized in that: The adsorption member (44) comprises a convex block (441) provided between the inner walls of the convex groove (431), the side end of the convex block (441) is fixedly connected to an adsorption pad (442), the upper end of the convex block (441) is fixedly connected to a positioning plate (443), and the upper end of the positioning plate (443) is fixedly connected to a handle (444).

7. The fully automatic PCB cleaning machine according to claim 5, characterized in that: A transducer and an ultrasonic generator are respectively installed on the bottom and side walls of the cleaning box (41), and the interior of the cleaning box (41) is filled with a cleaning agent, which is composed of a certain amount of active agent and additives.

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