A cleaning mechanism and a cleaning system for a circuit board

Abstract

The present invention provides a cleaning mechanism and a cleaning system for a circuit board, wherein the cleaning mechanism includes at least one jet component, having at least one jet port and at least one liquid inlet, wherein the jet port is used to spray cleaning liquid outward; and at least one suction component is arranged opposite to the jet port and a cleaning area is formed between the two, wherein the suction component is used to generate a suction force from the jet port toward the cleaning area in the cleaning area. The cleaning liquid is sprayed outward by the jet component, the cleaning area is formed by the jet component and the suction component, and the suction force is generated by the suction component, forming a one-spray-one-suction cleaning method, so that a pressure difference is formed between the two end faces of the object to be cleaned, and the water flow is more likely to pass through the hole on the object to be cleaned from one end of the jet component toward the other end of the suction component, and the problem of the cleaning liquid blocking the hole and causing the hole to not be cleaned will not occur, and the cleaning is cleaner, and no residual liquid remains in the hole, thereby improving the cleaning effect.

Description

Technical Field

[0001] The invention belongs to the technical field of electroplating equipment, and in particular relates to a cleaning mechanism and a cleaning system for a circuit board. Background Art

[0002] The PCB electroplating process is mainly divided into three stages: pre-treatment stage, electroplating stage and post-treatment stage. The main processes in the pre-treatment stage include degreasing, micro-etching and pickling, which are mainly used to remove dirt from the surface of the PCB; and the post-treatment stage is water washing, which is used to clean the residual liquid brought out of the PCB from the pre-treatment stage.

[0003] Water washing is a crucial part of circuit board electroplating. The cleanliness of the cleaning directly affects the subsequent work of the circuit board and the final quality and performance of the circuit board.

[0004] Existing circuit board washing systems usually use jet pipes to spray and clean one or both sides of the circuit board. The jet pipes are arranged on one side or both sides of the board passage at staggered intervals. Water flows from the jet pipes to the surface of the circuit board to clean the circuit board.

[0005] Generally, a circuit board will be provided with a plurality of small holes, and the aperture of the small holes is very small, for example, the aperture is between 0.002-0.3mm. The above-mentioned single-sided or double-sided staggered jet pipe water washing structure is adopted. When the water flow is sprayed from the spray hole onto the surface of the circuit board, the spray washing method is adopted, and the water flow will diffuse outward from the spray point. Due to the small aperture of the small hole, on the one hand, the water flow cannot enter the small hole to clean the impurities in the small hole; on the other hand, the water flow rushing at the hole edge is easy to form a water film at the hole mouth, which blocks the hole mouth, thereby preventing the water flow from continuing to enter the hole to clean the impurities in the hole. Finally, the wall surface of the circuit board is cleaned, but the hole cannot be cleaned due to the blocking effect of the water film, and there are still residual impurities in the liquid medicine, and the liquid medicine is oxidized in the air, thereby affecting the quality and performance of the circuit board. Summary of the invention

[0006] Therefore, the technical problem to be solved by the present invention is that the existing cleaning system of the circuit board is unable to clean the holes of the circuit board, resulting in residual liquid in the holes of the circuit board, affecting the quality and performance of the circuit board.

[0007] To this end, the present invention provides a cleaning mechanism, comprising:

[0008] at least one jet component, having at least one jet port and at least one liquid inlet, wherein the jet port is used to spray cleaning liquid outward;

[0009] At least one suction component is arranged opposite to the jet port and a cleaning area is formed therebetween. The suction component is used to generate a suction force in the cleaning area from the jet port toward the cleaning area.

[0010] Optionally, the cleaning mechanism further comprises at least one suction component disposed between the jet component and the suction component; the suction component has at least one suction port and at least one flow outlet;

[0011] The inlet of the suction component is sealed and connected to the outflow port; the cleaning area is surrounded by the suction component and the jet component, and the suction component generates the suction force on the cleaning area through the suction port of the suction component.

[0012] Optionally, in the cleaning mechanism, the jet outlet of the jet component corresponds one to one with the suction outlet on the suction component and is arranged opposite to each other.

[0013] Optionally, the cleaning mechanism and the jet component include

[0014] A body having a first inner cavity and at least one liquid inlet and liquid outlet channel communicating with the first inner cavity;

[0015] A blade body is sealed and fixed on the outer wall surface of the body where the liquid outlet channel is located; the blade body has a second inner cavity connected to the liquid outlet channel, and at least one jet port provided on the blade body; and / or

[0016] The flow suction component comprises

[0017] A body having a first inner cavity and at least one liquid inlet channel and at least one outlet communicating with the first inner cavity;

[0018] The blade body is sealed and fixed on the outer wall surface of the main body where the liquid inlet channel is located; the blade body has a second inner cavity communicated with the liquid inlet channel, and at least one suction port arranged on the blade body.

[0019] Optionally, in the cleaning mechanism, the jet port and the suction port are vertically opposite to each other, and the projection of the jet port and / or the suction port on the horizontal plane is inclined to the X-axis direction and is arranged on the knife body; or

[0020] The jet port and the suction port are horizontally opposite to each other, and the projection of the jet port and / or the suction port on the vertical plane is arranged on the knife body at an angle to the Z-axis direction.

[0021] Optionally, in the cleaning mechanism, the portion of the blade body where the jet outlet or the suction outlet is provided is in the form of a plate;

[0022] The jet port or the suction port is a strip hole obliquely arranged on the plate.

[0023] Optionally, in the cleaning mechanism, the jet port and / or the suction port are arranged to be inclined at 30-45 degrees to the plate.

[0024] Optionally, in the cleaning mechanism, at least one supporting component is respectively provided on the two side walls of the suction component facing the suction port; and all the suction ports are located between the supporting components on both sides;

[0025] The cleaning area is surrounded by the support component, the wall surface where the suction port of the suction component is located, and the wall surface where the jet port of the jet component is located; the support component is abutted against one side surface of the plate.

[0026] Optionally, in the cleaning mechanism, the supporting component is a rolling element rotatably disposed on the suction component.

[0027] Optionally, in the cleaning mechanism, the rolling element is a roller.

[0028] Optionally, in the cleaning mechanism, flanges protruding toward the cleaning area are respectively provided at both ends of the wall surface where the suction port of the suction component is located and / or the wall surface where the jet port of the jet component is located;

[0029] The flange is provided with a clearance notch corresponding to the support components one by one, and at least one end of the support component close to the jet outlet or the suction port is embedded in the clearance notch; the cleaning area is surrounded by the support component, the flange, the wall surface where the suction port of the suction component is located, and the wall surface where the jet outlet of the jet component is located.

[0030] Optionally, in the cleaning mechanism, the outlet of the suction component and the liquid inlet of the spray component are sealed and connected via a pipeline; and at least one filtering device is provided on the pipeline.

[0031] Optionally, in the cleaning mechanism, the suction component is a negative pressure suction pump.

[0032] Another object of the present invention is to provide a circuit board cleaning system, comprising:

[0033] At least one cleaning mechanism as described in any of the above items;

[0034] The driving mechanism is used to drive the circuit board to pass through any of the cleaning areas along the extension direction of the cleaning area of ​​the cleaning mechanism.

[0035] Optionally, in the circuit board cleaning system, the driving mechanism includes

[0036] at least one first roller assembly and at least one second roller assembly respectively disposed upstream and downstream of the cleaning area;

[0037] Any roller assembly includes at least two rollers arranged opposite to each other, and a plate passage for the plate to pass through is formed between the two opposite rollers.

[0038] The technical solution of the present invention has the following advantages:

[0039] 1. The cleaning mechanism provided by the present invention comprises at least one jet component, having at least one jet port and at least one liquid inlet, wherein the jet port is used to spray cleaning liquid outward;

[0040] At least one suction component is arranged opposite to the jet port and a cleaning area is formed therebetween. The suction component is used to generate a suction force in the cleaning area from the jet port toward the cleaning area.

[0041] The cleaning mechanism of this structure sprays cleaning liquid outwardly through the jet port of the jet component, and a cleaning area is enclosed by a suction component arranged opposite to the jet component, and a suction force is generated by the suction component acting on the cleaning area, forming a cleaning method of one spray and one suction, so that a pressure difference is formed between the two end surfaces of the object to be cleaned, and the water flow is more likely to pass through the hole on the object to be cleaned from the end sprayed by the jet component toward the end sucked by the suction component. During the cleaning process, the problem of cleaning liquid blocking the hole and causing the hole to not be cleaned will not occur. The cleaning structure using this structure cleans more thoroughly, and no residual liquid remains in the hole, thereby improving the cleaning effect.

[0042] 2. The cleaning mechanism provided by the present invention also includes a suction component arranged between the suction component and the spray component. The suction component and the spray component are arranged opposite to each other, and a spray is sprayed to one end surface of the object to be cleaned through the spray port of the spray component, and the other end sucks the flow to generate a suction force, thereby causing a negative pressure to be generated on the surface of the object to be cleaned at one end of the suction component, further increasing the pressure difference between the two end surfaces of the object to be cleaned, which is more conducive to the water flow to more easily pass through the hole set in the object to be cleaned from the end sprayed by the spray component toward the end sucked by the suction component, thereby enhancing the cleaning effect.

[0043] 3. In the cleaning mechanism provided by the present invention, the part of the blade body of the suction component where the suction port is provided is in the form of a plate, and the suction port is a strip hole obliquely arranged on the plate, with an inclination angle of 30-45°. The purpose of the inclined setting is to reduce water tension and increase the water flow rate, so that the water flow can more easily enter the suction component through the suction port, thereby increasing the suction force generated by the suction component, thereby further facilitating the water flow from the end sprayed by the spray component toward the end sucked by the suction component through the hole arranged in the object to be cleaned, thereby enhancing the cleaning effect.

[0044] 4. The cleaning mechanism provided by the present invention includes a filtering device. The outlet of the suction component and the liquid inlet of the spray component are sealed and connected via a pipeline. The filtering device is arranged on the pipeline. Through the arrangement of the filtering device and the pipeline, the cleaning liquid sucked by the suction component is filtered and then returned to the spray component for recycling, thereby reducing energy consumption and reducing costs.

[0045] 5. The circuit board cleaning system provided by the present invention includes the above-mentioned cleaning mechanism and driving mechanism. The driving mechanism is used to drive the circuit board to move forward, so that each part of the circuit board is cleaned by the cleaning mechanism in turn, thereby cleaning the entire circuit board. There is no residual liquid in the hole, the cleaning is cleaner, the cleaning effect is better, the quality is better, and it will not affect the subsequent processes.

[0046] 6. In the cleaning system for the circuit board provided by the present invention, the liquid medicine covers the suction component and the first blade of the jet component, that is, the suction port of the suction component and the jet port of the jet component are located in the liquid medicine, and by immersing the circuit board in the liquid medicine environment and through the joint action of the jet component and the suction component, the liquid medicine can pass through the holes on the circuit board, thereby improving the cleaning efficiency through the perfusion of the liquid medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0048] Figure 1 A schematic diagram of the structure of the cleaning mechanism in Embodiment 1 of the present invention;

[0049] Figure 2 It is a schematic structural diagram of the jet component of the cleaning mechanism in Example 1 of the present invention;

[0050] Figure 3 for Figure 2 A schematic cross-sectional structural diagram of a jet component;

[0051] Figure 4 This is a structural schematic diagram of the flow suction component of the cleaning mechanism in Example 1 of the present invention (including the supporting component);

[0052] Figure 5 This is a schematic structural diagram of the flow suction component of the cleaning mechanism in Example 1 of the present invention (excluding the supporting component);

[0053] Figure 6 for Figure 5 A schematic diagram of the top view of the structure of the suction component;

[0054] Figure 7 for Figure 4 A schematic cross-sectional structural diagram of a suction component;

[0055] Figure 8 Another structural schematic diagram of the cleaning mechanism in Embodiment 1 of the present invention;

[0056] Fig. 9 It is another structural schematic diagram of the cleaning mechanism in Embodiment 1 of the present invention;

[0057] Fig.10 This is a schematic structural diagram of a circuit board cleaning system in Embodiment 2 of the present invention;

[0058] Fig.11 This is a schematic diagram of the top view of the cleaning system for a circuit board in Example 2 of the present invention.

[0059] Description of reference numerals:

[0060] 1-jet component; 11-first body; 111-first inner cavity; 112-liquid outlet channel; 12-first blade body; 121-second inner cavity; 122-jet outlet; 123-second flange; 13-liquid inlet;

[0061] 2- Suction component;

[0062] 3- suction component; 31- second body; 310- liquid inlet channel; 311- first cavity; 312- outlet; 32- second blade body; 32a- first wall; 32b- second wall; 32c- third wall; 321- second inner cavity; 322- suction port; 33- second flange; 34- clearance notch; 35- support component;

[0063] 4-Pipeline;

[0064] 5-first roller assembly; 51-driving gear; 52-roller;

[0065] 6-second roller assembly;

[0066] 7- Circuit board;

[0067] 8- Cleaning area;

[0068] 9- Filtration equipment;

[0069] 10-Self-priming bucket. DETAILED DESCRIPTION

[0070] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0071] Example 1

[0072] This embodiment provides a cleaning mechanism, such as Figures 1 to 9 As shown, it includes at least one jet component 1, at least one suction component 3, at least one suction component 2, a pipeline 4 and at least one filtering device 9, the suction component 3 is arranged between the jet component 1 and the suction component 2; the jet component 1 has at least one jet port (not shown) and at least one liquid inlet 13, the jet port is used to spray cleaning liquid outward; the suction component 3 is arranged opposite to the jet component 1 and has at least one suction port 322 and at least one flow outlet 312, and a cleaning area 8 is formed between the suction component 3 and the jet component 1; the inlet of the suction component 2 is sealed with the flow outlet 312 of the suction component 3, and the suction component 2 is used to generate suction force on the cleaning area 8 at the suction port 322 of the suction component 3; so that the cleaning area 8 is in the cleaning state. A negative pressure is formed on the lower surface of the circuit board 7 in the area 8, so that impurities or liquid medicine in the holes on the circuit board 7 can smoothly pass through the holes to clean the inside of the holes; the jet port of the jet component 1 corresponds to the suction port 322 on the suction component 3 and is arranged opposite to each other; the pipeline 4 is arranged between the suction component 2 and the jet component 1, and the inlet of the suction component 2 and the outlet 312 of the suction component and the outlet of the suction component 2 and the liquid inlet 13 of the jet component 1 are all sealed and connected through the pipeline 4; the filtering device 9 is arranged on the pipeline 4 between the outlet of the suction component 2 and the liquid inlet 13 of the jet component 1, and is used to filter the cleaning liquid absorbed by the suction component 2 and then recirculate it into the jet component 1 for recycling.

[0073] For the jetting part 1 and the suction part 3, there can be only one or other numbers, such as two, three, four, etc.; for the suction part 2 and the filtering device 9, there can be only one or other numbers, which can correspond to the number of the jetting part 1 and the suction part 3, such as one, two, etc., or no corresponding numbers. Without detailed description and limitation, this embodiment is explained with the jetting part 1, the suction part 3, the suction part 2 and the filtering device 9 as one, and the specific connection relationship is that the inlet of the suction part 2 and the outlet 312 of the suction part and the outlet of the suction part 2 and the liquid inlet 13 of the jetting part 1 are sealed and connected through the pipeline 4.

[0074] For the jet component 1, if Figure 2 and Figure 3As shown, the jet component 1 is a water knife, specifically, it includes a body and a blade. In order to distinguish it from the suction component described below, the body and the blade of the jet component 1 are named as the first body 11 and the first blade 12 respectively, and the body and the blade of the suction component 3 are named as the second body 31 and the second blade 32; the first body 11 is tubular with a first inner cavity 111 in the middle, and a liquid inlet 13 and a liquid outlet channel 112 connected to the first inner cavity 111 are provided on the first body 11. The liquid inlet 13 is opened at one end of the first body 11, and the other end of the first body 11 is sealed by a plug (not shown); the liquid outlet channel 112 is opened on the side wall of the first body 11 (as shown in FIG. 1 ). Figure 3 The first blade body 12 is sealed and fixed to the outer wall surface of the first body 11 where the liquid outlet channel 112 is located. Figure 3 On the bottom wall shown, the first blade body 12 is in the shape of a plate with a second inner cavity 121, and at least one jet port 122 is provided on the first blade body 12. The number of the liquid inlet 13 can be more than one, such as two, three, etc., which is not specifically limited, and is preferably one; the number of the jet ports 122 should be as many as possible, and the specific number is not specifically limited or described, so that it can be evenly distributed along the length direction of the first blade body 12, and the diameter of the jet port 122 should be as small as possible, much smaller than the size of the liquid outlet channel 112, for example, the diameter of the jet port 122 is less than four times the size of the liquid outlet channel 112, so that the cleaning liquid can form a relatively high pressure spray liquid when it passes through the first body 11, the liquid outlet channel 112 and is sprayed out through the jet port 122, so that the surface of the circuit board 7 can be cleaned more thoroughly.

[0075] As for the suction component 3, the suction component 3 is a water jet, specifically, as Figures 4 to 7 As shown, it includes a second body 31 and a second blade body 32; the structure may be the same as that of the jet component 1, or it may be different; this embodiment is described by taking the structure of the suction component 3 and the jet component 1 as different; the second body 31 of the suction component 3 is tubular with a first inner cavity 311, and a liquid inlet channel 310 and a flow outlet 312 are provided on the second body 31, and the flow outlet 312 is provided at the middle lower end of the second body 31, and the liquid inlet channel 310 is provided on the wall of the second body 31 opposite to the flow outlet 312, that is, Figure 7On the top wall shown, both ends of the second body 31 are sealed by plugs (not shown); the second blade body 32 is in the shape of a plate with a second inner cavity 321, and the second blade body 32 is provided with at least one suction port 322 connected to the second inner cavity 321; similarly, the diameter of the suction port 322 should be as small as possible, for example, less than four times the diameter of the liquid inlet channel 310. The number of outflow ports 312 can also be more than one, such as two, three, etc., and no specific specific restrictions are made; the number of suction ports 322 should be as large as possible, and the specific number is not specifically limited or described, so as to be evenly distributed along the length direction of the second blade body 32; so as to generate sufficient suction force, so that the impurities or residual cleaning liquid in the holes on the circuit board 7 can pass through the holes more smoothly.

[0076] Regarding the arrangement of the jet port 122 and the suction port 322, the jet port 122 and the suction port 322 may have the same structure, for example, Figures 3 to 7 As shown, the portion of the blade body of the jet component 1 where the jet port 122 is arranged and the portion of the blade body of the suction component 3 where the suction port 322 is arranged are both in the form of plates, and the jet port 122 and the suction port 322 are both bar-shaped holes obliquely arranged on the plates; specifically, there are multiple jet ports 122 and multiple suction ports 322, and the multiple jet ports 122 or the multiple suction ports 322 are evenly spaced along the length direction of the plates of their respective corresponding blade bodies.

[0077] The arrangement of the jetting component 1 and the suction component 3 can be as follows: Figure 1 The jet component 1 and the suction component 3 are shown to be arranged vertically up and down oppositely, and at this time, correspondingly, the projection of the jet port 122 on the horizontal plane is inclined to the X-axis direction and is arranged on the blade of the jet component 1, and the projection of the suction port 322 on the horizontal plane is inclined to the X-axis direction and is arranged on the blade of the suction component 3. As an option, the jet component 1 and the suction component 3 can also be arranged horizontally front and back oppositely, the projection of the jet port 122 on the vertical plane is inclined to the Z-axis direction and is arranged on the blade of the jet component 1, and the projection of the suction port 322 on the vertical plane is inclined to the Z-axis direction and is arranged on the blade of the suction component 3. The jet port 122 and the suction port 322 are arranged on their respective corresponding plates at an angle with the length direction of the plates of the respective corresponding blade bodies; optionally, the angle is 30-45°, preferably 30°. The purpose of the 30° inclination is to reduce water tension and speed up the flow rate of water, so that the flow rate of water entering the suction component 3 from the suction port 322 is faster, which speeds up the circulation rate of the cleaning liquid in the cleaning area 8 between the jet component 1 and the suction component 3, and is more conducive to the cleaning liquid passing through the hole, so that the cleaning in the hole is more thorough.

[0078] Optionally, at least one supporting member 35 is further included, and the supporting member 35 is a rolling member rotatably arranged on the suction member 3; the cleaning area 8 is surrounded by the supporting member 35, the wall surface where the suction port 322 of the suction member 3 is located, and the wall surface where the jet port 122 of the jet member 1 is located. Specifically, as Figure 4 and Figure 7As shown, the blade body of the suction component 3 is a "凵"-shaped plate, including a first wall surface 32a, a second wall surface 32b, and a third wall surface 32c. The first wall surface 32a and the second wall surface 32b are arranged at intervals relatively left and right. The third wall surface 32c is horizontally arranged between the first wall surface 32a and the second wall surface 32b, that is, the first wall surface 32a and the second wall surface 32b are arranged in parallel and the third wall surface 32c is perpendicular to the first wall surface 32a and the second wall surface 32b. The upper and lower ends of the first wall surface 32a and the second wall surface 32b protrude from the upper and lower side surfaces of the third wall surface 32c, that is, the two ends of the first wall surface 32a and the second wall surface 32b protrude respectively towards the cleaning area 8 and the body direction of the suction component 3; more specifically, the end protruding towards the cleaning area 8 forms a flange (in order to distinguish from the flange of the blade body of the jet component 1, the flange of the blade body of the suction component 3 is named the first flange 33 here, and the flange of the blade body of the jet component 1 is named the second flange 123 here), and the end protruding towards the body of the suction component 3 is fixedly connected in a sealed manner with the top wall surface of the body of the suction component 3. The length of the end protruding towards the body of the suction component 3 is greater than the length of the end protruding towards the cleaning area 8; on the left and right side walls of the protruding ends of the first wall surface 32a and the second wall surface 32b towards the cleaning area 8, a number of relief notches 34 are provided. One support component 35 is correspondingly arranged in each relief notch 34. The end of the support component 35 close to the suction port 322 is embedded in the relief notch 34. A number of support components 35 are arranged at uniform intervals along the length direction of the blade body of the suction component 3; the third wall surface 32c is arranged between the support components 35 on the left and right sides, that is, all the suction ports 322 are opened on the third wall surface 32c between the support components 35 on the left and right sides; the support component 35 is for the side surface of one side of the plate material of the circuit board 7 to abut; between the support component 35, the first flange 33, the wall surface where the suction port 322 of the suction component 3 is located, and the wall surface where the jet port 122 in the jet component 1 is located, a cleaning area 8 is enclosed. For example, the relief notch 34 is a square or other shaped groove structure. Optionally, the blade body structure of the jet component 1 is similar to the blade body structure of the suction component 3, that is, at both ends of the wall surface where the jet port 122 in the jet component 1 is located, second flanges 123 protruding towards the cleaning area are respectively provided. Optionally, the rolling member is a roller. The first flange 33 is arranged above the left and right end sides of the blade body of the suction component 3 and extends along the length direction of the blade body. A rotating shaft (not shown) is inserted into the outer end surfaces of the first flanges 33 on the left and right sides. The support component 35, such as a roller, is rotatably sleeved on the rotating shaft and one roller is correspondingly arranged in each relief notch 34; of course, it can also be other numbers, such as two, three, etc.; the roller should be higher than the upper edge of the first flange 33 so that the roller can rollingly abut against the lower surface of the circuit board 7 to push the circuit board 7 forward, and the setting of the roller is also beneficial to guiding and draining the cleaning liquid entering the suction port 322 from the left and right sides of the suction component 3.

[0079] For the suction component 2, for example, it is a relatively conventional negative pressure suction pump. The specific structure and working principle are not described and limited in detail here. As for the number of suction components 2, it can be one, two, three, etc., and the specific number is not limited. As an option, a storage device, such as a self-priming bucket 10, can also be set on the pipeline 4 between the suction part 3 and the suction component 2. The specific structure is not limited and described here, and is used to store the cleaning liquid sucked from the suction component 3.

[0080] As a first alternative embodiment, the cleaning mechanism of this embodiment may not be provided with the suction component 3, and only includes a jet component 1 and a suction component 2, the jet component 1 has at least one jet port 122 and at least one liquid inlet 13, the jet port 122 is used to spray cleaning liquid outward, the suction component 2 and the jet port 122 are arranged opposite to each other and a cleaning area 8 is formed therebetween, the suction component 2 is used to generate a suction force in the cleaning area 8 from the jet port 122 toward the cleaning area 8; the above-mentioned purpose can also be achieved to achieve the same effect.

[0081] As a second alternative embodiment, the jet outlet 122 of the jet component 1 in this embodiment may not correspond one to one with the suction outlet 322 on the suction component 3, but only need to be arranged opposite to each other, that is, the number of the jet outlets 122 and the number of the suction outlets 322 may not be consistent, and the jet outlet 122 only needs to be used to spray the cleaning liquid to generate suction force in the cleaning area 8 formed between the jet component 1 and the suction component 3 to form negative pressure cleaning.

[0082] As a third alternative embodiment, this embodiment may not include the supporting component 35, and the position where the first flange 33 contacts the lower surface of the circuit board 7 may be directly set to an arc surface.

[0083] As a fourth replaceable embodiment, the jet outlet 122 on the blade body of the jet component 1 in this embodiment may also be a circular hole, for example, three rows of circular holes are provided, and the line connecting the centers of the circular holes corresponding to each row of circular holes is inclined to the plate, for example, the line connecting the first circular hole in the first row, the first circular hole in the second row and the first circular hole in the third row is inclined to the plate, and the setting angle is the same as described above and will not be repeated; this structural setting has a similar effect to the above-mentioned setting of strip holes inclined to the plate.

[0084] As a fifth alternative embodiment, the present embodiment does not include the filtering device 9; Figure 8 As shown, the outlet 312 of the suction component 3 is sealedly connected to the inlet of the suction component 2 through the pipeline 4, and the outlet of the suction component 2 is sealedly connected to the liquid inlet 13 of the spray component 1 through the pipeline 4; or as Fig. 9As shown, the outflow port 312 of the suction component 3 is sealedly connected to the inlet of the suction component 2 through the pipeline 4, and the outlet of the suction component 2 is not connected to the liquid inlet 13 of the spray component 1.

[0085] Example 2

[0086] This embodiment provides a circuit board cleaning system, comprising at least one cleaning mechanism and a driving mechanism of embodiment 1; the driving mechanism is used to drive the circuit board 7 to pass through any cleaning area 8 along the extension direction of the cleaning area 8 of the cleaning mechanism. For this cleaning system, the cleaning mechanism and the circuit board 7 are both in a liquid environment, that is, Fig.10 As shown, the circuit board 7 is immersed in the liquid medicine environment, and the liquid medicine covers the suction component 3 and the first blade 12 of the jet component 1, that is, the jet port of the jet component 1 is located in the liquid medicine. By immersing the circuit board 7 in the liquid medicine environment and through the action of the jet component 1 and the suction component 3, the liquid medicine can pass through the holes on the circuit board 7, and the cleaning efficiency is improved by the liquid medicine perfusion.

[0087] like Figures 1 to 11 As shown, this embodiment is described by taking an example in which a cleaning mechanism is provided, wherein the cleaning mechanism includes a spray component 1 arranged vertically up and down, a suction component 3, a suction component 2 located downstream of the suction component 3, a pipeline 4, and a filtering device 9 arranged on the pipeline 4.

[0088] The direction from left to right is taken as the forward movement direction of the circuit board 7. At this time, the upstream represents the right end of the cleaning mechanism, and the downstream represents the left end of the cleaning mechanism. Specifically, Fig.10 and Fig.11 As shown, the cleaning mechanism is arranged vertically up and down, that is, the jet port 122 of the jet component 1 and the suction port 322 of the suction component 3 are facing each other, the jet component 1 is located at the top, and the suction component 3 is located at the bottom. The blade body of the jet component 1 and the blade body of the suction component 3 are both along the width direction of the circuit board 7 (that is, Fig.11 The cleaning area 8 is formed between the jet port 122 of the jet component 1 and the suction port 322 of the suction component 3; the driving mechanism includes at least one first roller assembly 5 ( Fig.10 in an elliptical circle) and at least one second roller assembly 6 ( Fig.10 For example, five first roller assemblies 5 and five second roller assemblies 6 are provided, and the five first roller assemblies 5 and the five second roller assemblies 6 are evenly spaced along the forward movement direction of the circuit board 7; any roller assembly includes two rollers (not shown) vertically arranged opposite to each other up and down, and a plate passage (not shown) for the circuit board 7 to pass through is formed between the two opposite rollers.

[0089] For any roller assembly, if Fig.11 As shown, the roller assembly includes a driving gear 51, a driving shaft (not shown) and a roller 52, the driving gear 51 is arranged on one end of the driving shaft, and a plurality of rollers 52 arranged evenly at intervals are fixed on the driving shaft by means of a keyway or the like, and the upper and lower two relatively arranged driving gears 51 of any roller assembly are meshed with each other so that the upper and lower relatively arranged two rollers 52 of any roller assembly move synchronously; there is a gap between the first roller assembly 5 and the second roller assembly 6, the blade of the jet component 1 is located above the gap and sprays the cleaning liquid directly on the upper surface of the circuit board 7, the area directly facing the jet port 122 of the jet component 1 and the suction port 322 of the suction component 3 belongs to the cleaning area, and the circuit board 7 is in the driving mechanism. Under the drive of the drive mechanism, the circuit board 7 moves forward from the downstream to the upstream along the board passage and is cleaned by the cleaning mechanism in the cleaning area 7. The suction component 3 is arranged below the interval and applies suction force to the lower surface of the circuit board 7; the spray components 1 and the suction components 3 of all cleaning mechanisms are arranged vertically and spaced up and down to form a board passage. When the circuit board 7 passes through the board passage, the upper and lower surfaces of the circuit board 7 respectively roll and abut against the outer surfaces of the two rollers 52 of the roller assembly arranged opposite to each other in the upper and lower directions of the driving mechanism, so that the circuit board 7 passes through the board passage horizontally under the driving action of the driving mechanism; the support component 35 is rollably arranged on the first flange 33 of the left and right side walls of the suction component 3 and rolls and abuts against the lower surface of the circuit board 7. Optionally, the number of the first roller assembly 5 and the second roller assembly 6 can also be other numbers, such as two, three, etc. Optionally, the number of the cleaning mechanisms of this embodiment can also be two, three, etc., which are evenly distributed on the upper and lower sides of the board passage along the conveying direction of the circuit board 7. The structures and working principles of the roller 52, driving gear 51, etc. are not described or limited in detail here, and they are all the existing relatively conventional roller 52 and driving gear 51 structures.

[0090] In the circuit board cleaning system of the present structure, the circuit board 7 and the suction component 3 are both located in the cleaning liquid, that is, the liquid level of the cleaning liquid is not higher than the upper surface of the circuit board 7, and the blade part of the jet component 1 is below the liquid level of the cleaning liquid; because the suction component 3 is arranged on the lower surface of the circuit board 7, a suction force is generated on the lower surface of the circuit board 7, so that a negative pressure is generated on the lower surface of the circuit board 7, while a positive pressure is generated on the upper surface of the circuit board 7, and a pressure difference is formed between the upper and lower surfaces of the circuit board 7, and the pressure difference causes the cleaning liquid on the upper surface of the circuit board 7 to move from the left and right ends toward the middle and pass through the holes on the circuit board 7 under the action of the pressure difference and enter the suction component 3 through the suction port 322 of the suction component 3, and then be filtered by the filtering device 94. After filtration, it enters the liquid inlet 13 of the jet component 1 through the pipeline for recycling; the circuit board 7 is driven to move forward continuously by the driving mechanism, and when passing through the cleaning mechanism, the cleaning mechanism cleans the holes on the circuit board 7 in the position area, so that the holes of the circuit board 7 in the area are penetrated and thoroughly cleaned, thereby cleaning the holes in the length direction of the circuit board 7. Since the blades of the jet component 1 and the suction component 3 extend along the width direction of the circuit board 7, the width direction of the circuit board 7 is cleaned during the cleaning process. In this way, when the driving mechanism drives the circuit board 7 to move forward continuously, all the holes of the entire circuit board 7 can be cleaned, and there will be no residual liquid remaining in the holes to block the holes and prevent them from being cleaned.

[0091] As a first alternative embodiment, a plurality of cleaning mechanisms are provided in this embodiment, and the plurality of cleaning mechanisms are evenly spaced apart along the forward moving direction of the circuit board 7 .

[0092] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A cleaning mechanism, characterized in that: include: At least one jet component (1) having at least one jet port (122) and at least one liquid inlet (13), wherein the jet port (122) is used to spray cleaning liquid outward; at least one suction component (2) disposed opposite to the jet port (122) and enclosing a cleaning area (8) therebetween, the suction component (2) being used to generate a suction force in the cleaning area (8) from the jet port (122) toward the cleaning area (8); It also comprises at least one suction component (3) arranged between the jet component (1) and the suction component (2); the suction component (3) has at least one suction port (322) and at least one outflow port (312); The jet component (1) comprises: A first body (11) having a first inner cavity and at least one liquid inlet (13) and a liquid outlet channel (112) in communication with the first inner cavity; A first blade body (12) is sealed and fixed on the outer wall surface of the first body (11) where the liquid outlet channel (112) is located; the first blade body (12) has a second inner cavity communicated with the liquid outlet channel (112), and at least one jet port (122) provided on the first blade body (12); The flow-absorbing component (3) comprises: a second body (31) having a first inner cavity, at least one liquid inlet channel (311) communicating with the first inner cavity, and at least one flow outlet (312); A second blade body (32) is sealed and fixed on the outer wall surface of the second body (31) where the liquid inlet channel (311) is located; the second blade body (32) has a second inner cavity communicating with the liquid inlet channel (311), and at least one suction port (322) provided on the second blade body (32); At least one supporting component (35) is respectively provided on two side walls of the suction component (3) facing the suction port (322); all the suction ports (322) are located between the supporting components (35) on both sides; The outlet of the suction component (2) and the liquid inlet (13) of the jet component (1) are sealedly connected via a pipeline (4); at least one filtering device (9) is provided on the pipeline (4).

2. The cleaning mechanism according to claim 1, characterized in that: The inlet of the suction component (2) is sealedly connected to the outflow port (312); the cleaning area (8) is enclosed between the suction component (3) and the jet component (1); and the suction component (2) generates the suction force on the cleaning area (8) through the suction port (322) of the suction component (3).

3. The cleaning mechanism according to claim 2, characterized in that: The jet outlet (122) of the jet component (1) corresponds one to one with the suction outlet (322) on the suction component (3) and is arranged opposite to each other.

4. The cleaning mechanism according to claim 1, characterized in that: The jet port (122) and the suction port (322) are vertically opposed to each other, and the projection of the jet port (122) and / or the suction port (322) on a horizontal plane is inclined in the X-axis direction and is arranged on the first blade (12); or The jet port (122) and the suction port (322) are horizontally opposed to each other, and the projection of the jet port (122) and / or the suction port (322) on a vertical plane is arranged on the second blade body (32) at an angle to the Z-axis direction.

5. The cleaning mechanism according to claim 4, characterized in that: The portion of the first blade body (12) provided with the jet port (122) or the portion of the second blade body (32) provided with the suction port (322) is in the form of a plate; The jet port (122) or the suction port (322) is a strip-shaped hole obliquely arranged on the plate.

6. The cleaning mechanism according to claim 5, characterized in that: The jet port (122) and / or the suction port (322) are arranged to be inclined at 30-45 degrees relative to the plate.

7. The cleaning mechanism according to any one of claims 2 to 6, characterized in that: The cleaning area (8) is surrounded by the support component (35), the wall surface where the suction port (322) of the suction component (3) is located, and the wall surface where the jet port (122) of the jet component (1) is located; the support component (35) is provided for abutment against one side surface of the plate.

8. The cleaning mechanism according to claim 7, characterized in that: The supporting component (35) is a rolling component rotatably arranged on the flow suction component (3).

9. The cleaning mechanism according to claim 8, characterized in that: The rolling element is a roller.

10. The cleaning mechanism according to claim 7, characterized in that: The wall surface where the suction port (322) of the suction component (3) is located and / or the wall surface where the jet port (122) of the jet component (1) is located are respectively provided with flanges protruding toward the cleaning area (8) at both ends; The flange is provided with clearance notches (34) corresponding one to one with the support components (35); one end of at least one of the support components (35) close to the jet outlet (122) or the suction outlet (322) is embedded in the clearance notch (34); the cleaning area (8) is surrounded by the support component (35), the flange, the wall surface where the suction outlet (322) of the suction component (3) is located, and the wall surface where the jet outlet (122) of the jet component (1) is located.

11. The cleaning mechanism according to claim 1, characterized in that: The suction component (2) is a negative pressure suction pump.

12. A circuit board cleaning system, characterized in that: include At least one cleaning mechanism according to any one of claims 1 to 11; The driving mechanism is used to drive the circuit board (7) to pass through any one of the cleaning areas (8) along the extension direction of the cleaning area (8) of the cleaning mechanism.

13. The circuit board cleaning system according to claim 12, characterized in that: The driving mechanism comprises At least one first roller assembly (5) and at least one second roller assembly (6) respectively arranged upstream and downstream of the cleaning area (8); Any roller assembly comprises at least two rollers (52) arranged opposite to each other, and a plate passage for the plate to pass through is formed between the two opposite rollers (52).

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