A PCB cleaning machine and its use method

Abstract

The invention discloses a PCB cleaning machine and a use method thereof, and relates to the technical field of PCB cleaning. The machine comprises a placing frame and a cleaning device, wherein a collecting groove is provided at the bottom of the inner wall of the placing frame, a displacement hole is provided at the bottom of the placing frame, a displacement rod is fixedly installed on the inner wall of the displacement hole, a displacement device is slidably installed on the circumferential surface of the displacement rod, a force-bearing rod is fixedly installed on the top of the displacement device, a force-bearing plate is slidably installed on the circumferential surface of the force-bearing rod, a protective rod moves in a direction close to a linkage rod to drive a cleaning rod to move in a direction close to the linkage rod, and the cleaning rod cleans the PCB board at the bottom of the inner wall of the stabilizing groove by reciprocating lateral movement, and physical friction can be generated by the reciprocating motion of the cleaning rod to help remove stubborn dirt and residues attached to the PCB board surface and gaps, and accelerate the loosening and removal of dirt, thereby improving the overall cleaning efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of PCB board cleaning, and in particular to a PCB board cleaning machine and a use method thereof. Background Art

[0002] PCB cleaning machines usually consist of cleaning devices, protective devices, drying devices and control systems.

[0003] Patent announcement number CN111389774B relates to a solar photovoltaic panel cleaning device and a method of using the same, including a substrate, an embedding groove is provided on the upper surface of the substrate, and the embedding groove is a right-angled quadrilateral shape, the embedding groove is used to embed the solar photovoltaic panel, the upper surface of the substrate is provided with a swing mechanism and a cleaning mechanism, the swing mechanism is connected to the cleaning mechanism by transmission, the bottom surface of the substrate is provided with a vibration-absorbing mechanism, the swing mechanism is connected to the vibration-absorbing mechanism by transmission, and the vibration-absorbing mechanism is connected to the cleaning mechanism through an air outlet pipe. This solar photovoltaic panel cleaning device and method of using the same do not require consumption of electrical energy, and can automatically clean the solar photovoltaic panel in real time without human intervention, and have high cleaning efficiency, and are safe and reliable, achieving a vibration-absorbing effect on the solar photovoltaic panel while improving the cleaning of the upper surface of the solar photovoltaic panel, thereby protecting the solar photovoltaic panel and improving the service life of the solar photovoltaic panel.

[0004] In the above patent, the solar photovoltaic panel can be cleaned automatically in real time without human intervention, with high cleaning efficiency, safety and reliability, and can achieve vibration reduction of the solar photovoltaic panel while improving the cleaning of the upper surface of the solar photovoltaic panel, thereby protecting the solar photovoltaic panel and increasing the service life of the solar photovoltaic panel. However, it is difficult to cover every part of the PCB board during cleaning. If the cleaning machine cannot cover every part of the PCB board during cleaning, dirt and contaminants will remain in the uncleaned area, thereby affecting the performance and reliability of the PCB board. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a PCB cleaning machine and a method of using the same, which solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a PCB board cleaning machine, comprising a placement frame, and also comprising a cleaning device, wherein a collecting groove is provided at the bottom of the inner wall of the placement frame, a displacement hole is provided at the bottom of the placement frame, a displacement rod is fixedly installed on the inner wall of the displacement hole, a displacement device is slidably installed on the circumferential surface of the displacement rod, a force-bearing rod is fixedly installed on the top of the displacement device, and a force-bearing plate is slidably installed on the circumferential surface of the force-bearing rod, wherein the cleaning device comprises a servo motor, a rotating rod, a cleaning rod, a protective rod, a protective block, a moving hole, a stabilizing groove, a stabilizing frame and a linkage ring, and the protective rod is moved to Movement in the direction close to the linkage rod drives the cleaning rod to move in the direction close to the linkage rod, and the cleaning rod uses this reciprocating lateral movement to clean the PCB board at the bottom of the inner wall of the stabilizing groove. The servo motor is fixedly installed on the right side of the placement frame, the rotating rod is fixedly installed on the output end of the servo motor, the cleaning rod is slidably installed on the circumferential surface of the rotating rod, the protective rod is fixedly installed on the circumferential surface of the cleaning rod, the protective block is fixedly installed on the inner wall of the placement frame, the movable hole is opened on the surface of the placement frame, the stabilizing groove is opened on the top of the force-bearing plate, the stabilizing frame is fixedly installed on the inner wall of the stabilizing groove, and the linkage ring is fixedly installed on the circumferential surface of the cleaning rod.

[0007] According to the above technical solution, a fixing plate is fixedly installed on the inner wall of the placement frame, a fixing hole is opened on the surface of the fixing plate, and a scraper is fixedly installed on the inner wall of the fixing hole. The scraper contacts the cleaning rod to scrape off the dirt and welding residues adhered to the surface of the cleaning rod.

[0008] According to the above technical solution, a No. 1 spring is arranged between the rotating rod and the cleaning rod, and the No. 1 spring can drive the cleaning rod to reset. The top of the protective block is set as an inclined surface, and the scraper is in contact with the cleaning rod. The stability of the PCB board during cleaning can be improved through the stabilizing frame.

[0009] According to the above technical scheme, the inner wall of the placement frame is provided with a shaking device for improving the cleaning effect, and the top of the placement frame is provided with a liquid spraying device, and the shaking device includes a support plate, a support rod, a hollow T-shaped rod, a support spring, a force spring and a protrusion. The force plate drives the PCB board to be cleaned to shake by this reciprocating vertical shaking, and when the force plate moves downward, it will hit the protrusion to generate vibration. The force plate generates vibration and drives the PCB board to resonate together. The support plate is fixedly installed on the left side of the placement frame, and the support rod slides through the upper and lower walls of the support plate, and the hollow T-shaped rod is fixedly installed at both ends of the support rod, the support spring is arranged between the support plate and the support rod, and the force spring is arranged between the force plate and the force rod, and the protrusion is fixedly installed at the bottom of the inner wall of the moving hole.

[0010] According to the above technical solution, one end of the hollow T-shaped rod close to the rotating rod is set as an inclined surface. By setting the inclined surface, the hollow T-shaped rod can be pushed to move more easily. The hollow T-shaped rod contacts the cleaning rod, and the bottom of the hollow T-shaped rod contacts the force plate.

[0011] According to the above technical scheme, the liquid spraying device includes a liquid storage frame, a linkage rod, an adding frame, an adding plate, an adding rod, a liquid inlet hole and a liquid spraying pipe. After the seal of the liquid spraying pipe is released, part of the cleaning agent inside the adding frame is sprayed toward the cleaning rod and the PCB board to be cleaned through the liquid spraying pipe. The liquid storage frame is fixedly installed on the top of the placement frame, the linkage rod slides through the bottom of the inner wall of the liquid storage frame, the adding frame is fixedly installed on the bottom of the inner wall of the liquid storage frame, the adding plate is slidably installed on the inner wall of the adding frame, the adding rod is fixedly installed on the side of the adding plate close to the linkage rod, the liquid inlet hole is opened on the surface of the adding frame, and the liquid spraying pipe is fixedly installed on the right side of the liquid storage frame.

[0012] According to the above technical solution, a No. 2 spring is arranged between the linkage rod and the liquid storage frame, and the No. 2 spring can drive the linkage rod to reset. Cleaning agent is arranged inside the liquid storage frame. The linkage rod is in contact with the force plate, and the elastic coefficient of the force spring is greater than that of the No. 2 spring.

[0013] According to the above technical solution, a No. 3 spring is arranged between the adding plate and the adding frame, and the No. 3 spring can drive the adding plate to reset. A rubber block is arranged inside the spray pipe, and the end of the adding rod close to the linkage rod is set as an inclined surface. The elastic coefficient of the No. 2 spring is greater than that of the No. 3 spring.

[0014] A method for using a PCB cleaning machine, using the above-mentioned PCB cleaning machine, comprises the following steps:

[0015] Step 1: After the PCB to be cleaned is placed at the bottom of the inner wall of the stable groove, the servo motor drives the rotating rod to rotate, the rotating rod drives the cleaning rod to rotate, the cleaning rod drives the protective rod to rotate, the protective rod rotates to contact the inclined surface of the protective block and squeeze the protective block;

[0016] Step 2: The protection rod is moved toward the direction close to the linkage rod by the reaction force of the extrusion protection block, and the movement of the protection rod toward the direction close to the linkage rod drives the cleaning rod to move toward the direction close to the linkage rod;

[0017] Step 3: After the protection rod continues to rotate and disengages from the protection block, the cleaning rod moves back and forth in a direction away from the linkage rod under the elastic force of the No. 1 spring to clean the PCB board at the bottom of the inner wall of the stabilizing groove by means of this reciprocating lateral movement;

[0018] Step 4: At the same time, the displacement device operates to drive the force-bearing rod to move horizontally, and the movement of the force-bearing rod drives the force-bearing plate and the PCB board to move together to increase the contact area between the cleaning rod and the PCB board.

[0019] The present invention provides a PCB cleaning machine, which has the following beneficial effects:

[0020] (1) In the present invention, the cleaning rod is moved and reset in a direction away from the linkage rod under the elastic force of the No. 1 spring. The cleaning rod cleans the PCB board at the bottom of the inner wall of the stabilizing groove by means of the reciprocating lateral movement of the cleaning rod. The reciprocating motion of the cleaning rod can generate physical friction, which helps to remove stubborn dirt and residues attached to the PCB board surface and gaps, and accelerates the loosening and removal of dirt, thereby improving the overall cleaning efficiency. At the same time, the scraper contacts the cleaning rod to scrape off the dirt and welding residues adhered to the surface of the cleaning rod. By keeping the surface of the cleaning rod clean and preventing the dirt from being transferred to the surface of the PCB board again, the cleaning rod can more effectively remove the dirt and residues on the PCB board, thereby further improving the overall cleaning efficiency.

[0021] (2) The invention moves the force-bearing plate upward to reset, thereby driving the stabilizing frame and the PCB to be cleaned upward. The force-bearing plate vibrates vertically to drive the PCB to be cleaned to vibrate. The up and down shaking can make the detergent more evenly distributed on the surface of the PCB, ensuring that all areas can fully contact the detergent and the cleaning rod, thereby improving the cleaning efficiency. At the same time, when the force-bearing plate moves downward, it will hit the bump to generate vibration. The vibration generated by the force-bearing plate drives the PCB to resonate together. The resonance of the PCB can quickly loosen the dirt attached to the PCB, shorten the cleaning time, and thus help improve the cleaning efficiency.

[0022] (3) In the present invention, the cleaning agent entering the liquid spraying tube squeezes the rubber block, and the rubber block is deformed by the cleaning agent entering the liquid spraying tube. The deformation of the rubber block releases the seal of the liquid spraying tube. After the seal of the liquid spraying tube is released, part of the cleaning agent in the adding frame is sprayed toward the cleaning rod and the PCB board to be cleaned through the liquid spraying tube. The dirt and welding residue attached to the surface of the PCB board can be quickly dissolved by spraying the cleaning agent, thereby improving the cleaning efficiency. The liquid cleaning agent provides lubrication during cleaning, thereby reducing the friction on sensitive components. At the same time, the quantitative amount of cleaning agent can ensure the best cleaning effect and avoid excessive cleaning agent residue or insufficient cleaning agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the position structure of the displacement rod and the force-bearing rod of the present invention;

[0025] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement of part A;

[0026] Figure 4 For the present invention Figure 2 A schematic diagram of the structure of part B in the middle is enlarged;

[0027] Figure 5 It is a schematic diagram of the position structure of the placement frame and the liquid storage frame of the present invention;

[0028] Figure 6 For the present invention Figure 5 The enlarged schematic diagram of the structure of part C in the middle;

[0029] Figure 7 It is a schematic diagram of the internal structure of the liquid storage frame of the present invention.

[0030] In the figure: 1. placement frame; 2. collection tank; 3. servo motor; 4. rotating rod; 5. cleaning rod; 6. protection rod; 7. protection block; 8. fixing plate; 9. fixing hole; 10. scraper; 11. moving hole; 12. stabilizing groove; 13. stabilizing frame; 14. linkage ring; 151. support plate; 152. support rod; 153. hollow T-shaped rod; 154. support spring; 155. displacement hole; 156. displacement rod; 157. force rod; 158. force plate; 159. force spring; 1510. bump; 161. liquid storage frame; 162. linkage rod; 163. adding frame; 164. adding plate; 165. adding rod; 166. liquid inlet hole; 167. liquid spray pipe. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0032] See also Figure 1-Figure 7, one embodiment of the present invention is: a PCB board cleaning machine, including a placement frame 1, and also including a cleaning device, wherein a collecting groove 2 is opened at the bottom of the inner wall of the placement frame 1, a displacement hole 155 is opened at the bottom of the placement frame 1, a displacement rod 156 is fixedly installed on the inner wall of the displacement hole 155, a displacement device is slidably installed on the circumferential surface of the displacement rod 156, a force rod 157 is fixedly installed on the top of the displacement device, and a force plate 158 is slidably installed on the circumferential surface of the force rod 157, wherein the cleaning device includes a servo motor 3, a rotating rod 4, a cleaning rod 5, a protective rod 6, a protective block 7, a moving hole 11, a stabilizing groove 12, a stabilizing frame 13 and a linkage ring 14, the servo motor 3 It is fixedly installed on the right side of the placement frame 1, the rotating rod 4 is fixedly installed on the output end of the servo motor 3, the cleaning rod 5 is slidably installed on the circumferential surface of the rotating rod 4, the protective rod 6 is fixedly installed on the circumferential surface of the cleaning rod 5, the protective block 7 is fixedly installed on the inner wall of the placement frame 1, the moving hole 11 is opened on the surface of the placement frame 1, the stabilizing groove 12 is opened on the top of the force plate 158, the stabilizing frame 13 is fixedly installed on the inner wall of the stabilizing groove 12, and the linkage ring 14 is fixedly installed on the circumferential surface of the cleaning rod 5. The reciprocating motion of the cleaning rod 5 can generate physical friction, which helps to remove stubborn dirt and residues attached to the PCB board surface and gaps, and accelerates the loosening and removal of dirt, thereby improving the overall cleaning efficiency.

[0033] A fixing plate 8 is fixedly installed on the inner wall of the placement frame 1, and a fixing hole 9 is opened on the surface of the fixing plate 8. A scraper 10 is fixedly installed on the inner wall of the fixing hole 9. The scraper 10 contacts the cleaning rod 5 to scrape off the dirt and welding residues adhered to the surface of the cleaning rod 5. By keeping the surface of the cleaning rod 5 clean and preventing the dirt from being transferred to the surface of the PCB board again, the cleaning rod 5 can more effectively remove dirt and residues on the PCB board, thereby further improving the overall cleaning efficiency.

[0034] A spring No. 1 is arranged between the rotating rod 4 and the cleaning rod 5, and the spring No. 1 can drive the cleaning rod 5 to reset. The top of the protective block 7 is arranged as an inclined surface, and the scraper 10 contacts the cleaning rod 5. The stabilizing frame 13 can improve the stability of the PCB board during cleaning.

[0035] A method for using a PCB cleaning machine, using the above-mentioned PCB cleaning machine, comprises the following steps:

[0036] Step 1: After the PCB to be cleaned is placed at the bottom of the inner wall of the stabilizing groove 12, the servo motor 3 drives the rotating rod 4 to rotate, the rotating rod 4 rotates to drive the cleaning rod 5 to rotate, the cleaning rod 5 rotates to drive the protective rod 6 to rotate, the protective rod 6 rotates to contact the inclined surface of the protective block 7 and squeeze the protective block 7;

[0037] Step 2: The protection rod 6 is moved toward the direction close to the linkage rod 162 by the reaction force of the extrusion protection block 7. The movement of the protection rod 6 toward the direction close to the linkage rod 162 drives the cleaning rod 5 to move toward the direction close to the linkage rod 162;

[0038] Step 3: After the protection rod 6 continues to rotate and disengages from the protection block 7, the cleaning rod 5 moves back and forth in a direction away from the linkage rod 162 under the elastic force of the first spring to clean the PCB board at the bottom of the inner wall of the stabilizing groove 12 by means of the reciprocating lateral movement;

[0039] Step 4: At the same time, the displacement device operates to drive the force-bearing rod 157 to move horizontally. The movement of the force-bearing rod 157 drives the force-bearing plate 158 and the PCB board to move together to increase the contact area between the cleaning rod 5 and the PCB board.

[0040] When this embodiment is working: after the PCB board to be cleaned is placed at the bottom of the inner wall of the stabilizing groove 12, the servo motor 3 drives the rotating rod 4 to rotate, the rotating rod 4 rotates to drive the cleaning rod 5 to rotate, the cleaning rod 5 rotates to drive the protective rod 6 to rotate, the protective rod 6 rotates to contact the inclined surface of the protective block 7 and squeeze the protective block 7, and at the same time, the protective rod 6 is subjected to the reaction force of squeezing the protective block 7 and moves in the direction close to the linkage rod 162, the protective rod 6 moves in the direction close to the linkage rod 162, driving the cleaning rod 5 to move in the direction close to the linkage rod 162, and at the same time, the cleaning rod 5 moves in the direction close to the linkage rod 162 to pull the No. 1 spring, which is pulled by the cleaning rod 5 to produce deformation and accumulate force, and the protective rod 6 continues to rotate to break away from the contact with the protective block 7 Afterwards, the cleaning rod 5 moves and resets in the direction away from the linkage rod 162 under the elastic force of the No. 1 spring, and the cleaning rod 5 cleans the PCB board at the bottom of the inner wall of the stabilizing groove 12 by this reciprocating lateral movement. At the same time, the servo motor 3 drives the rotating rod 4 to rotate, and the rotation of the rotating rod 4 drives the cleaning rod 5 to rotate. The cleaning rod 5 rotates and contacts with the scraper 10. The scraper 10 contacts with the cleaning rod 5 to scrape off the dirt and welding residues adhered to the surface of the cleaning rod 5. The scraped dirt and welding residues slide to the bottom of the collecting groove 2 through the scraper 10 under the action of their own gravity. At the same time, the displacement device drives the force-bearing rod 157 to move horizontally, and the movement of the force-bearing rod 157 drives the force-bearing plate 158 and the PCB board to move together to increase the contact area between the cleaning rod 5 and the PCB board.

[0041] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, a shaking device for improving the cleaning effect is arranged on the inner wall of the placement frame 1, and a liquid spraying device is arranged on the top of the placement frame 1. The shaking device includes a support plate 151, a support rod 152, a hollow T-shaped rod 153, a support spring 154, a force spring 159 and a protrusion 1510. The support plate 151 is fixedly installed on the left side of the placement frame 1, and the support rod 152 slides through the upper and lower walls of the support plate 151. The hollow T-shaped rod 153 is fixedly installed at both ends of the support rod 152. The support spring 154 is arranged between the support plate 151 and the support rod 152. The force spring 159 is arranged between the force plate 158 and the force rod 157. The protrusion 1510 is fixedly installed at the bottom of the inner wall of the moving hole 11. The up and down shaking can make the detergent more evenly distributed on the surface of the PCB board, ensuring that all areas of the PCB board can fully contact the detergent and the cleaning rod 5, thereby improving the cleaning efficiency.

[0042] One end of the hollow T-shaped rod 153 close to the rotating rod 4 is set as an inclined surface. By setting the inclined surface, the hollow T-shaped rod 153 can be pushed to move more easily. The hollow T-shaped rod 153 contacts the cleaning rod 5, and the bottom of the hollow T-shaped rod 153 contacts the force plate 158. The PCB board resonates together to quickly loosen the dirt attached to the PCB board, shorten the cleaning time, and thus help improve the cleaning efficiency.

[0043] The liquid spraying device includes a liquid storage frame 161, a linkage rod 162, an adding frame 163, an adding plate 164, an adding rod 165, a liquid inlet hole 166 and a liquid spraying pipe 167. The liquid storage frame 161 is fixedly installed on the top of the placement frame 1, the linkage rod 162 slides through the bottom of the inner wall of the liquid storage frame 161, the adding frame 163 is fixedly installed on the bottom of the inner wall of the liquid storage frame 161, the adding plate 164 is slidably installed on the inner wall of the adding frame 163, the adding rod 165 is fixedly installed on one side of the adding plate 164 close to the linkage rod 162, the liquid inlet hole 166 is opened on the surface of the adding frame 163, and the liquid spraying pipe 167 is fixedly installed on the right side of the liquid storage frame 161. By spraying the detergent, the dirt and welding residue attached to the surface of the PCB board can be quickly dissolved, thereby improving the cleaning efficiency. Moreover, the quantitative amount of detergent can ensure the best cleaning effect and avoid excessive detergent residue or incomplete cleaning due to insufficient detergent.

[0044] A No. 2 spring is arranged between the linkage rod 162 and the liquid storage frame 161, and the No. 2 spring can drive the linkage rod 162 to reset. Cleaning agent is arranged inside the liquid storage frame 161. The linkage rod 162 contacts the force plate 158, and the elastic coefficient of the force spring 159 is greater than that of the No. 2 spring.

[0045] A No. 3 spring is arranged between the adding plate 164 and the adding frame 163, and the No. 3 spring can drive the adding plate 164 to reset. A rubber block is arranged inside the spray pipe 167, and the end of the adding rod 165 close to the linkage rod 162 is set as an inclined surface. The elastic coefficient of the No. 2 spring is greater than that of the No. 3 spring.

[0046] When this embodiment is working: the cleaning rod 5 moves in the direction close to the linkage rod 162, driving the linkage ring 14 to move; the linkage ring 14 moves and contacts the inclined surface of the hollow T-shaped rod 153 and squeezes the hollow T-shaped rod 153; the hollow T-shaped rod 153 moves downward under the squeezing of the linkage ring 14; the hollow T-shaped rod 153 moves downward and drives the support rod 152 to move downward; the support rod 152 moves downward to squeeze the support spring 154; the support spring 154 is squeezed by the support rod 152 to produce deformation and accumulate force; at the same time, the hollow T-shaped rod 153 moves downward and contacts the force plate 158 and squeezes the force plate 158; the force plate 158 is squeezed by the hollow T-shaped rod 153 and moves downward to pull the force spring 159; the force spring 159 is pulled by the force plate 158 to produce deformation and accumulate force, and the cleaning rod 5 moves in the direction away from the linkage rod 162 The resetting drives the linkage ring 14 to move, and the linkage ring 14 moves in a direction away from the linkage rod 162 to reset and disengage from the contact with the hollow T-shaped rod 153. After the hollow T-shaped rod 153 is disengaged from the contact with the linkage ring 14, the support rod 152 moves upward under the elastic force of the support spring 154, and the support rod 152 moves upward to drive the hollow T-shaped rod 153 to move upward and reset. The hollow T-shaped rod 153 moves upward and resets to disengage from the contact with the force plate 158, so that the force plate 158 moves upward and resets under the elastic force of the force spring 159. The force plate 158 moves upward and resets, driving the stabilizing frame 13 and the PCB to be cleaned to move upward. The force plate 158 reciprocates vertically to shake, driving the PCB to be cleaned to shake. At the same time, when the force plate 158 moves downward, it will hit the bump 1510 to generate vibration. The force plate 158 generates vibration and drives the PCB to resonate together.

[0047] The force-bearing plate 158 moves upward and resets under the elastic force of the force-bearing spring 159, and the force-bearing plate 158 moves upward and resets to contact the linkage rod 162 and squeeze the linkage rod 162. The linkage rod 162 is squeezed by the force-bearing plate 158 and moves upward. The linkage rod 162 moves upward to squeeze the No. 2 spring. The No. 2 spring is squeezed by the linkage rod 162 to deform and store force. At the same time, the linkage rod 162 moves upward to contact the adding rod 165 and squeeze the adding rod 165. The adding rod 165 is squeezed by the linkage rod 162 and moves in the direction close to the spray pipe 167. The adding rod 165 moves in the direction close to the spray pipe 167 to drive the adding plate 164 to move, and the adding plate 164 moves away from the liquid inlet hole 1 66 contacts and seals part of the cleaning agent inside the adding frame 163, and at the same time, the adding plate 164 continues to move toward the direction close to the spray pipe 167, and the adding plate 164 continues to move to squeeze part of the cleaning agent inside the adding frame 163. Part of the cleaning agent inside the adding frame 163 is squeezed by the adding plate 164 and enters the spray pipe 167. The cleaning agent entering the spray pipe 167 squeezes the rubber block, and the rubber block is squeezed by the cleaning agent entering the spray pipe 167 and deforms. The deformation of the rubber block releases the seal of the spray pipe 167. After the seal of the spray pipe 167 is released, part of the cleaning agent inside the adding frame 163 is sprayed toward the cleaning rod 5 and the PCB board to be cleaned through the spray pipe 167.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PCB cleaning machine, comprising a placement frame (1), characterized in that: Also includes cleaning device; The bottom of the inner wall of the placement frame (1) is provided with a collecting groove (2), the bottom of the placement frame (1) is provided with a displacement hole (155), a displacement rod (156) is fixedly mounted on the inner wall of the displacement hole (155), a displacement device is slidably mounted on the circumferential surface of the displacement rod (156), a force-bearing rod (157) is fixedly mounted on the top of the displacement device, and a force-bearing plate (158) is slidably mounted on the circumferential surface of the force-bearing rod (157); The cleaning device comprises a servo motor (3), a rotating rod (4), a cleaning rod (5), a protective rod (6), a protective block (7), a movable hole (11), a stabilizing groove (12), a stabilizing frame (13) and a linkage ring (14); the servo motor (3) is fixedly mounted on the right side of the placement frame (1); the rotating rod (4) is fixedly mounted on the output end of the servo motor (3); the cleaning rod (5) is slidably mounted on the circumferential surface of the rotating rod (4); the protective rod (6) is fixedly mounted on the circumferential surface of the cleaning rod (5); the protective block (7) is fixedly mounted on the inner wall of the placement frame (1); the movable hole (11) is provided on the surface of the placement frame (1); the stabilizing groove (12) is provided on the top of the force-bearing plate (158); the stabilizing frame (13) is fixedly mounted on the inner wall of the stabilizing groove (12); and the linkage ring (14) is fixedly mounted on the circumferential surface of the cleaning rod (5); Wherein, the inner wall of the placement frame (1) is provided with a shaking device for improving the cleaning effect, and the top of the placement frame (1) is provided with a liquid spraying device; The shaking device comprises a support plate (151), a support rod (152), a hollow T-shaped rod (153), a support spring (154), a force spring (159) and a protrusion (1510); the support plate (151) is fixedly mounted on the left side of the placement frame (1); the support rod (152) slides through the upper and lower walls of the support plate (151); the hollow T-shaped rod (153) is fixedly mounted on both ends of the support rod (152); the support spring (154) is arranged between the support plate (151) and the support rod (152); the force spring (159) is arranged between the force plate (158) and the force rod (157); and the protrusion (1510) is fixedly mounted on the bottom of the inner wall of the moving hole (11); The liquid spraying device comprises a liquid storage frame (161), a linkage rod (162), an adding frame (163), an adding plate (164), an adding rod (165), a liquid inlet hole (166) and a liquid spraying pipe (167); the liquid storage frame (161) is fixedly mounted on the top of the placement frame (1); the linkage rod (162) slides through the bottom of the inner wall of the liquid storage frame (161); the adding frame (163) is fixedly mounted on the bottom of the inner wall of the liquid storage frame (161); the adding plate (164) is slidably mounted on the inner wall of the adding frame (163); the adding rod (165) is fixedly mounted on a side of the adding plate (164) close to the linkage rod (162); the liquid inlet hole (166) is provided on the surface of the adding frame (163); and the liquid spraying pipe (167) is fixedly mounted on the right side of the liquid storage frame (161); A second spring is provided between the linkage rod (162) and the liquid storage frame (161), a cleaning agent is provided inside the liquid storage frame (161), and the linkage rod (162) is in contact with the force-bearing plate (158).

2. A PCB cleaning machine according to claim 1, characterized in that: A fixing plate (8) is fixedly mounted on the inner wall of the placement frame (1), a fixing hole (9) is opened on the surface of the fixing plate (8), and a scraper (10) is fixedly mounted on the inner wall of the fixing hole (9).

3. A PCB cleaning machine according to claim 2, characterized in that: A No. 1 spring is provided between the rotating rod (4) and the cleaning rod (5), the top of the protective block (7) is provided as an inclined surface, and the scraper (10) is in contact with the cleaning rod (5).

4. A PCB cleaning machine according to claim 3, characterized in that: One end of the hollow T-shaped rod (153) close to the rotating rod (4) is arranged as an inclined surface, the hollow T-shaped rod (153) is in contact with the cleaning rod (5), and the bottom of the hollow T-shaped rod (153) is in contact with the force-bearing plate (158).

5. A PCB cleaning machine according to claim 4, characterized in that: A No. 3 spring is arranged between the adding plate (164) and the adding frame (163), a rubber block is arranged inside the liquid spraying pipe (167), and one end of the adding rod (165) close to the linkage rod (162) is arranged as an inclined surface.

6. A method for using a PCB cleaning machine, using the PCB cleaning machine according to claim 5, characterized in that: The following steps are involved: Step 1: After the PCB to be cleaned is placed at the bottom of the inner wall of the stabilizing groove (12), the servo motor (3) is operated to drive the rotating rod (4) to rotate, the rotating rod (4) drives the cleaning rod (5) to rotate, the cleaning rod (5) drives the protective rod (6) to rotate, and the protective rod (6) rotates to contact the inclined surface of the protective block (7) and squeeze the protective block (7); Step 2: the protection rod (6) is moved towards the direction close to the linkage rod (162) by the reaction force of the extrusion protection block (7), and the movement of the protection rod (6) towards the direction close to the linkage rod (162) drives the cleaning rod (5) to move towards the direction close to the linkage rod (162); Step 3: After the protection rod (6) continues to rotate and disengages from the protection block (7), the cleaning rod (5) moves back and forth in a direction away from the linkage rod (162) under the elastic force of the first spring to reset, and the cleaning rod (5) cleans the PCB board at the bottom of the inner wall of the stabilizing groove (12) by means of this reciprocating lateral movement; Step 4: At the same time, the displacement device operates to drive the force-bearing rod (157) to move horizontally, and the movement of the force-bearing rod (157) drives the force-bearing plate (158) and the PCB board to move together to increase the contact area between the cleaning rod (5) and the PCB board.

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