A PCB board washing device

Abstract

The present invention relates to the technical field of electrical components, and specifically to a PCB board washing device, comprising: a machine base; a platform, the machine base is fixedly connected with the platform; a transfer frame, the platform is rotatably connected with the transfer frame; a frame, the platform is fixedly connected with the frame; a material pushing frame, the frame is slidably connected with the material pushing frame; a deformation bar, the deformation bar is fixedly connected with the material pushing frame; a cleaning machine a, the platform is fixedly connected with the cleaning machine a; a cleaning machine b, the platform is fixedly connected with the cleaning machine b. The present invention sets a rotating transfer frame to transport the PCB, so that the PCB passes vertically through the cleaning machine a and the cleaning machine b, so that the two can respectively clean the two sides of the PCB at the same time, without the need to change direction to transport the PCB twice, thereby greatly reducing the time for cleaning the PCB and effectively improving the cleaning efficiency of the present invention for the PCB.

Description

Technical Field

[0001] The invention relates to the technical field of electrical components, and in particular to a PCB board washing device. Background Art

[0002] PCB cleaning is one of the processing steps in the PCB production process. This step is mainly used to remove pollutants generated during the PCB production process, such as solder residues and flux residues, etc. After the PCB is cleaned, it will be able to ensure its normal electrical function and improve its appearance. Cleanliness and aesthetics.

[0003] When cleaning PCBs, in order to reduce the workload of cleaning PCBs and improve the efficiency of cleaning PCBs, a cleaning device is currently used to clean PCBs, and a transport unit is also provided in the cleaning device to transport the PCBs, so as to automatically load the materials and realize the mechanization of the PCB cleaning process, thereby achieving the above-mentioned purpose; however, both the front and back sides of the PCBs need to be cleaned, and the transport unit of the existing cleaning device will block one side of the PCB when transporting the PCB, so that the PCB can only be cleaned on one side at a time, and needs to be repeatedly put into the cleaning device for cleaning, which leads to an increase in the steps of cleaning the PCB. Obviously, the cleaning efficiency of the existing technology still has a lot of room for improvement. Summary of the invention

[0004] In view of the problems in the prior art, the present invention proposes a PCB cleaning device capable of cleaning both sides of a PCB at a time, aiming to improve the efficiency of cleaning the PCB.

[0005] A PCB board washing device comprises: a machine base; a platform, the machine base is fixedly connected with the platform; a transfer frame, the platform is rotatably connected with the transfer frame, and the transfer frame is provided with a frame opening; a frame, the platform is fixedly connected with the frame, and the frame is located on the inner side of the transfer frame; a pushing frame, the frame is slidably connected with the pushing frame, the size of the pushing frame is adapted to the size of the PCB, and the pushing frame reciprocates along the length direction of the frame; a deformation bar, the pushing frame is fixedly connected with the deformation bar, and the deformation bar can only be deformed in one direction; a cleaning machine a, the platform is fixedly connected with the cleaning machine a, the cleaning machine a is located on the outer side of the transfer frame, and the cleaning machine a can clean one side of the PCB mounted on the transfer frame; a cleaning machine b, the platform is fixedly connected with the cleaning machine b, the cleaning machine b is located on the inner side of the transfer frame, corresponding to the position of the cleaning machine a, and the cleaning machine b can clean the other side of the PCB mounted on the transfer frame.

[0006] Its further technical solution is that the cleaning machine a comprises: a chassis, which is fixedly connected to the platform; a nozzle a, which is slidably connected to the chassis, and the chassis can control the nozzle a to move up and down; and a connecting nozzle, which is fixedly connected to the chassis.

[0007] Its further technical solution is that the cleaning machine b includes: a mounting frame, which is fixedly connected to the platform; a connecting pipe, which is fixedly connected to the mounting frame; a nozzle b, which is fixedly connected to the connecting pipe; a cleaning sponge, which is rotatably connected to the mounting frame; and a motor b, which is fixedly connected to the platform, and the output end of the motor b is fixed to the cleaning sponge.

[0008] A further technical solution is that the cleaning range width of the cleaning machine a and the cleaning machine b is greater than the width of the PCB.

[0009] Its further technical solution is that it also includes: a support plate, which is fixedly connected to the platform; a pulley, which is rotatably connected to the support plate; a belt, which is wound between the pulleys; a spacer, which is fixedly connected to the belt, a partition groove is formed between two adjacent spacers, and the PCB is inserted into the partition groove.

[0010] A further technical solution is that the top of the spacer is arranged to be arc-shaped.

[0011] Its further technical solution is that it also includes: a mounting column, which is fixedly connected to the platform; a motor a, which is fixedly connected to the mounting column; a missing gear, which is rotatably connected to the mounting column, and the missing gear is fixed to the output end of the motor a; an inner gear ring, which is fixedly connected to the transfer frame, and the missing gear is meshed with the inner gear ring.

[0012] Its further technical solution is that it also includes: a connecting plate group, and a connecting plate group is arranged between the output end of the motor a and the pushing frame.

[0013] Its further technical solution is that it also includes: a guide block, which is rotatably connected to the frame, the spacing between each guide block is consistent with the length of the partition groove, and the position of the spacing corresponds to the partition groove; an inclined plate, which is fixedly connected to the guide block; a torsion spring, which is fixedly connected between the guide block and the frame, and the torsion spring is sleeved on the axis of the guide block; a stop block, which is fixedly connected to the frame, and the stop block is correspondingly arranged on the side of each guide block.

[0014] Its further technical solution is that it also includes: a rotating frame, which is rotatably connected to the platform; rollers, which are rotatably connected to the rotating frame, and at least three rollers are arranged, wherein when the rollers are located at the position closest to the transfer frame on the rotating frame, the rollers at this position can extend beyond the frame opening into the inner side of the transfer frame; a unloading port is arranged on the platform, and the unloading port is located below the rotating frame.

[0015] Beneficial effects:

[0016] 1. The present invention sets a rotating transfer frame to transport the PCB, so that the PCB passes vertically through the cleaning machine a and the cleaning machine b, so that the two can clean the two sides of the PCB at the same time, respectively, without the need to change direction to transport the PCB twice, thereby greatly reducing the time for cleaning the PCB and effectively improving the cleaning efficiency of the present invention for the PCB; and setting a reciprocating push frame to realize automatic loading of the PCB, thereby improving the convenience of use of the present invention.

[0017] 2. In the present invention, the rotation of the transfer frame and the movement of the push frame are driven by motor a, so that when the push frame loads the PCB to the transfer frame, the push frame and the transfer frame can be highly matched to ensure the docking accuracy between the two.

[0018] 3. The present invention sets a cleaning machine a and a cleaning machine b to clean the two sides of the PCB in two ways respectively. The dry ice cleaning method can avoid the influence of the cleaning solvent on the electronic components on the PCB or even damage them, and the solvent cleaning has high use efficiency and has no obvious negative impact on the other side of the PCB. That is, the present invention can clean the PCB in a targeted manner, thereby improving the cleaning effect and use efficiency of the present invention on the PCB.

[0019] 4. The present invention provides a guide block so that the PCB can be easily inserted between the spacer blocks, which facilitates the loading of the PCB and saves the loading time of the PCB. The operator can use the saved time to do other work such as the transfer work after the PCB is collected, so that the operator's work can be basically synchronized with the operation of the equipment, reducing the staggered layers between the work of both parties and optimizing the operation and use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the position structure of the transfer frame and the pusher frame in the present invention.

[0022] Figure 3 It is a schematic diagram of the connection structure of the driving member controlling the transfer frame in the present invention.

[0023] Figure 4 It is a schematic diagram of the connection structure of the driving member controlling the pusher frame in the present invention.

[0024] Figure 5 This is a separation diagram of the connection structure between the pusher frame and the frame in the present invention.

[0025] Figure 6 It is a schematic diagram of the connection structure of the guide block in the present invention.

[0026] Figure 7 It is a side view showing the positional relationship among the PCB, the guide block and the spacer block in the present invention.

[0027] Figure 8 It is a schematic diagram of the connection structure of cleaning machine a and cleaning machine b in the present invention.

[0028] Fig. 9 This is a schematic diagram of the connection structure of the cleaning machine b in the present invention from another perspective.

[0029] Fig.10 It is a schematic diagram of the connection structure of the roller in the present invention.

[0030] Fig.11 It is a cross-sectional view of the position structure of the discharge port in the present invention.

[0031] The markings in the attached drawings are: 00-PCB, 11-base, 12-platform, 1201-sub-chamber, 13-transfer frame, 1301-frame mouth, 1302-deformation block, 1303-limiting block, 21-frame, 22-push frame, 2201-support arm, 2202-connecting shaft, 23-deformation bar, 24-support plate, 25-pulley, 26-belt, 27-spacer, 2701-slot, 31-mounting column, 32-motor a, 33-missing gear, 34-inner gear ring, 35-connecting plate group, 3501-connecting plate a, 3502-connecting plate b, 41-guide block, 42-inclined plate, 43-torsion spring, 44-resistance block, 51-cleaning machine a, 5101-chassis, 5102-nozzle a, 5103-connecting nozzle, 52-cleaning machine b, 5201-mounting frame, 5202-connecting pipe, 5203-nozzle b, 5204-cleaning sponge, 5205-motor b, 5206-transmission belt group, 61-rotating frame, 62-roller, 63-discharging port. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] Embodiment: A PCB board washing device, see Figure 1-Figure 3, including: a machine base 11; a platform 12, a platform 12 is fixedly installed on the top of the machine base 11, and the platform 12 is set to be circular; a transfer frame 13, a transfer frame 13 is rotatably installed on the platform 12, and the transfer frame 13 is set to be circular, and the transfer frame 13 rotates with a vertical line passing through the center of its circle as the rotation axis, and a frame opening 1301 is set on the side of the transfer frame 13, and the size of the frame opening 1301 is adapted to the size of PCB00, so that PCB00 can be installed on the transfer frame 13 through the frame opening 1301, and the transfer frame 13 rotates to move and transport the PCB00 fixed on the frame opening 1301; a deformation block 1302, the transfer frame 13 A deformation block 1302 is fixedly installed at the frame opening 1301. The deformation block 1302 can be squeezed and deformed by PCB00, and its recovery tendency will clamp PCB00 in the frame opening 1301; a limit block 1303 is fixedly installed at the frame opening 1301 of the transfer frame 13. The limit block 1303 is used to limit the position of PCB00 on the frame opening 1301. The limit block 1303 is located on the outer side of the transfer frame 13, so that PCB00 can only detach from the frame opening 1301 toward the inner side of the transfer frame 13, but cannot detach from the frame opening 1301 toward the outer side of the transfer frame 13.

[0034] PCB00 is pushed toward the frame opening 1301 of the transfer frame 13 from the inner side of the transfer frame 13, and PCB00 will squeeze the deformation block 1302 to deform. The deformation block 1302 can clamp the PCB00 and fix it on the transfer frame 13. At the same time, the limit block 1303 presses against the outside of PCB00 to limit the position of PCB00. The cooperation of the two can stably fix PCB00 on the transfer frame 13, and the transfer frame 13 rotates to transport PCB00.

[0035] See also Figure 1-Figure 5, further comprising: a frame 21, a frame 21 is fixedly mounted on the platform 12, the frame 21 is located on the inner side of the transfer frame 13, the frame 21 is perpendicular to the side of the transfer frame 13, so that the frame 21 can face the frame opening 1301 on the transfer frame 13, and the rotating transfer frame 13 will enable each frame opening 1301 to move to face the frame 21; a pushing frame 22, a pushing frame 22 is slidably mounted on the frame 21, the size of the pushing frame 22 is adapted to the size of the PCB00, the pushing frame 22 moves in the left and right directions, the moving pushing frame 22 will push the PCB00 toward the frame opening 1301 of the transfer frame 13, and push it into the frame opening 1301; a support arm 2201, a support arm 2201 is fixedly mounted on the pushing frame 22; a connecting shaft 2202, a connecting shaft 2202 is fixedly mounted on the support arm 2201; a deformation bar 23, a deformation bar 23 is fixedly mounted on the left side of the pushing frame 22 3. The deformation bar 23 is set to be arc-shaped so that it can only deform to the left but not to the right. The push frame 22 will push the PCB00 to the frame opening 1301 through the deformation block 1302; the support plate 24, a support plate 24 is fixedly installed on the platform 12, and two support plates 24 are provided, which are respectively arranged at the left and right ends of the frame 21; the pulley 25, the two support plates 24 are rotatably installed with the pulley 25; the belt 26, a belt 26 is wound between the two pulleys 25; the spacer 27, a spacer 27 is fixedly installed on the belt 26, and a partition groove 2701 is formed between two adjacent spacers 27, and the PCB00 is inserted into the partition groove 2701. The moving belt 26 can transport the PCB00 from right to left, and the push frame 22 will be able to move the belt 26 through the spacer 27 when moving the PCB00. The top of the spacer 27 is set to an arc shape to guide the auxiliary PCB00 to insert into the partition groove 2701.

[0036] PCB00 is arranged in the frame 21 and inserted into the partition groove 2701 one by one; the pushing frame 22 moves to the right, and the PCB00 on the far left will be squeezed along the arc surface of the deformation strip 23 to deform the deformation strip 23, so that the PCB00 can pass through the pushing frame 22, and then the PCB00 is located on the left side of the pushing frame 22. Therefore, the pushing frame 22 moves to the left, and the deformation block 1302 will resist the PCB00. At this time, the relative displacement direction between the PCB00 and the pushing frame 22 will not be able to deform the deformation strip 23, then the pushing frame 22 can push the PCB00 to the left and load the PCB00 into the frame opening 1301; in the process of the PCB00 being pushed, the PCB00 will move the belt 26 through the partition block 27, and move all the other PCB00 to the left for a while, so that the pushing frame 22 can push the next PCB00 into the frame opening 1301 during the next left and right movement, and so on, to achieve automatic loading of PCB00.

[0037] See also Figure 1 and Figure 4, also includes: a mounting column 31, a mounting column 31 is fixedly mounted on the platform 12; a motor a32, a motor a32 is fixedly mounted on the mounting column 31; a missing gear 33, a missing gear 33 is rotatably mounted on the mounting column 31, and the missing gear 33 is fixed to the output end of the motor a32; an inner gear ring 34, an inner gear ring 34 is mounted on the top of the transfer frame 13, and the missing gear 33 is meshed with the inner gear ring 34; a connecting plate group 35, a connecting plate group 35 is arranged between the output end of the motor a32 and the connecting shaft 2202, and the connecting plate group 35 includes: a connecting plate a3501 and a connecting plate b3502, the connecting plate a3501 is rotatably connected to the connecting plate b3502, the other end of the connecting plate a3501 is fixed to the output end of the motor a32, and the other end of the connecting plate b3502 is rotatably connected to the connecting shaft 2202.

[0038] The motor a32 is started, and the meshing of the missing gear 33 and the inner gear ring 34 controls the transfer frame 13 to rotate and the intermittent stop mode; at the same time, the motor a32 rotates the connecting plate a3501, and under the transmission of the connecting plate b3502, the connecting shaft 2202 is driven to move left and right, that is, the motor a32 controls the pusher frame 22 to move left and right through the connecting plate group 35; in summary, the motor a32 is started, and the pusher frame 22 is controlled to move left, and the transfer frame 13 will stop intermittently, so that when the pusher frame 22 loads PCB00 into the frame mouth 1301, the transfer frame 13 is in a stationary state, and the PCB00 can be stably loaded onto the frame mouth 1301, and the pusher frame 22 is controlled to move right, and the transfer frame 13 rotates to move the next frame mouth 1301 to a position opposite to the frame 21, and so on. The pusher frame 22 can continuously feed the transfer frame 13.

[0039] See also Figure 1 , Figure 6 and Figure 7 , and also includes: a guide block 41, a guide block 41 is rotatably installed at the position of the front and rear frame edges of the right top of the frame 21, and a total of nine rows of guide blocks 41 are arranged, and the spacing between the guide blocks 41 in each row is consistent with the partition groove 2701, and the position of the spacing corresponds to the partition groove 2701; an inclined plate 42, an inclined plate 42 is fixedly installed on the top of the guide block 41, and PCB00 will be guided to be inserted into the partition groove 2701 under the action of the inclined plate 42; a torsion spring 43, a torsion spring 43 is fixedly installed between the guide block 41 and the frame 21, and the torsion spring 43 is sleeved on the axis of the guide block 41; a stop block 44, a stop block 44 is fixedly installed on the frame 21, and the stop block 44 is correspondingly arranged on the right side of each guide block 41.

[0040] When PCB00 is placed above one of the guide blocks 41, under the guidance of the inclined plate 42, PCB00 will be inserted into the partition groove 2701 corresponding to the position of the guide block 41 and loaded onto the device; and when multiple PCB00 are placed on the guide block 41, each row of guide blocks 41 can insert each PCB00 into each partition groove 2701 one by one, thereby realizing rapid loading of PCB00 without the need for manual manipulation of the insertion into the partition groove 2701 one by one.

[0041] See also Figure 1 , Figure 8 and Fig. 9 , and further includes: a cleaning machine a51, a cleaning machine a51 is fixedly installed on the platform 12, and the cleaning machine a51 is located at the lower position of the pushing frame 22, so that the transfer frame 13 can transfer the PCB00 to the cleaning machine a51 after the PCB00 is loaded, and the cleaning machine a51 is located outside the transfer frame 13, and the cleaning machine a51 includes: a chassis 5101, a chassis 5101 is fixedly installed on the platform 12; a nozzle a5102, and a nozzle a5102 is slidably installed on the chassis 5101 2. Nozzle a5102 is used to spray dry ice and perform dry ice cleaning on the side of PCB00 where components are arranged. The chassis 5101 can control the up and down movement of nozzle a5102. A total of four groups of nozzles a5102 are arranged on the chassis 5101. The total width of the nozzles a5102 is approximately equal to the width of two PCB00s; connecting nozzle 5103. The chassis 5101 is fixedly installed with a connecting nozzle 5103, and the connecting nozzle 5103 is used to add dry ice into the chassis 5101.

[0042] See also Figure 1 , Figure 8 and Fig. 9, further comprising: a sub-chamber 1201, a sub-chamber 1201 is fixedly mounted on the platform 12, and the sub-chamber 1201 is used to store cleaning liquid; a cleaning machine b52, a cleaning machine b52 is fixedly mounted on the platform 12, and the cleaning machine b52 is located at the lower position of the pushing frame 22, corresponding to the position of the cleaning machine a51, and the cleaning machine a51 is located on the inner side of the transfer frame 13, that is, the movement of the transfer frame 13 will make the PCB00 pass through the cleaning machine a51 and the cleaning machine b52, and one side of the PCB00 is facing the cleaning machine a51, and the other side is facing the cleaning machine b52, and the cleaning machine b52 comprises: a mounting frame 5201, a mounting frame 5201 is fixedly mounted on the platform 12; a connecting pipe 5202, a connecting pipe 5202 is fixedly mounted on the mounting frame 5201, and the connecting pipe 5202 is connected to the sub-chamber 1201; a nozzle b520 3. A nozzle b5203 is fixedly installed on the connecting pipe 5202, and the nozzle b5203 can spray the cleaning liquid in the sub-chamber 1201 onto the other side of the PCB00. The total width of the nozzle b5203 is consistent with the total width of the nozzle a5102; cleaning sponges 5204. Cleaning sponges 5204 are rotatably installed on the mounting frame 5201. The rotating cleaning sponges 5204 can cooperate with the cleaning liquid to scrub the PCB00. Three cleaning sponges 5204 are provided; motor b5205. A motor b5205 is fixedly installed on the platform 12, and the output end of the motor b5205 is fixed to one of the cleaning sponges 5204; a transmission belt group 5206. A transmission belt group 5206 is provided between two adjacent cleaning sponges 5204, and the transmission belt group 5206 enables all the cleaning sponges 5204 to rotate synchronously.

[0043] When the transfer frame 13 moves PCB00 between the cleaning machine a51 and the cleaning machine b52, the cleaning machines a51 and b52 will clean the front and back sides of PCB00 simultaneously during the time when the transfer frame 13 stops intermittently; the total width setting between the nozzle a5102 and the nozzle b5203 enables PCB00 to stay between the cleaning machines a51 and b52 for the time when the two transfer frames 13 stop intermittently, thereby extending the cleaning time of PCB00.

[0044] See also Figure 1 , Fig.10 and Fig.11 , and also includes: a rotating frame 61, a rotating frame 61 is rotatably installed on the platform 12, and the rotating frame 61 is located below the cleaning machine a51 and the cleaning machine b52; a roller 62, a roller 62 is rotatably installed on the rotating frame 61, and six rollers 62 are provided. When the roller 62 is located at the position closest to the transfer frame 13 on the rotating frame 61, the roller 62 can extend beyond the frame opening 1301 and extend into the inner side of the transfer frame 13 at this position; a unloading port 63 is provided on the platform 12, and the unloading port 63 is located below the rotating frame 61.

[0045] When the transfer frame 13 drives the cleaned PCB00 to move to the position of the rotating frame 61, Fig.10 For example, a frame opening 1301 on the left side of the frame opening 1301 where PCB00 is located will contact the roller 62 at the rear left position, so that the rotating transfer frame 13 can drive the rotating frame 61 to rotate. When the rotating frame 61 rotates, the roller 62 at the rear right position will be turned toward the transfer frame 13, so that this roller 62 moves toward the frame opening 1301 where PCB00 is located, that is, PCB00 is pushed out to the inside of the transfer frame 13 by the roller 62, detached from the transfer frame 13, and uniformly discharged through the unloading port 63, thereby realizing automatic unloading of PCB00.

[0046] How to use this device: Take an appropriate amount of neatly stacked PCB00 and place them vertically, move them to the top of the guide block 41 row group, relax the control of each PCB00 from right to left, and slowly move the stack of PCB00 from right to left. Each PCB00 will be inserted into each compartment 2701 correspondingly under the guidance of the inclined plate 42 on each row of guide blocks 41. After all nine PCB00 are placed in the frame 21, stop placing the remaining PCB00, move the belt 26, move all the PCB00 to the left, and repeat the above operation again until all PCB00 are placed in the frame 21. When the machine is full of PCB00, a collection frame for collecting PCB00 is placed in front of the discharge port 63; the motor a32 is started to control the transfer frame 13 to rotate intermittently and stop, and the pushing frame 22 is controlled to move back and forth left and right, and each PCB00 in the frame 21 is added to the transfer frame 13 in turn, and then each PCB00 is transported one by one to between the cleaning machine a51 and the cleaning machine b52, and the cleaning work on both sides is carried out at the same time; after cleaning, each PCB00 is moved to the discharge port 63, squeezed out of the transfer frame 13 by the roller 62, and automatic unloading is completed.

[0047] It should be noted that cleaning machine a51 and cleaning machine b52 can be started according to the cleaning requirements of PCB00.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A PCB board washing device, characterized in that: include: A machine base (11); A platform (12), the base (11) is fixedly connected with the platform (12); A transfer frame (13), a transfer frame (13) for transporting the PCB (00) is rotatably connected to the platform (12), and a frame opening (1301) for clamping the PCB (00) is provided on the transfer frame (13). The PCB (00) is mounted on the transfer frame (13) through the frame opening (1301); A frame (21), the platform (12) is fixedly connected with the frame (21), the frame (21) is located inside the transfer frame (13), and the position of the frame (21) enables the frame opening (1301) to be transferred to the frame (21) facing the rotating transfer frame (13); A material pushing frame (22), the frame (21) is slidably connected with the material pushing frame (22), the size of the material pushing frame (22) is adapted to the size of the PCB (00), and the material pushing frame (22) reciprocates along the length direction of the frame (21); A deformation bar (23), the pushing frame (22) is fixedly connected with the deformation bar (23), and the deformation bar (23) can only be deformed in one direction; A cleaning machine a (51), the platform (12) is fixedly connected with the cleaning machine a (51), the cleaning machine a (51) is located outside the transfer frame (13), and the cleaning machine a (51) can clean one side of the PCB (00) installed on the transfer frame (13); A cleaning machine b (52), the platform (12) is fixedly connected with the cleaning machine b (52), the cleaning machine b (52) is located on the inner side of the transfer frame (13), corresponding to the position of the cleaning machine a (51), and the cleaning machine b (52) can clean the other side of the PCB (00) mounted on the transfer frame (13); The cleaning machine a (51) comprises: a chassis (5101), and the chassis (5101) is fixedly connected to the platform (12); Nozzle a (5102), the chassis (5101) is slidably connected with a nozzle a (5102) for spraying dry ice, so as to perform dry ice cleaning on the PCB (00), and the chassis (5101) can control the nozzle a (5102) to move up and down; A connection nozzle (5103), the chassis (5101) is fixedly connected with a connection nozzle (5103) for replenishing dry ice into the chassis (5101); The cleaning machine b (52) comprises: a mounting frame (5201), the mounting frame (5201) being fixedly connected to the platform (12); A connecting pipe (5202) is fixedly connected to the mounting frame (5201) and is used to receive a cleaning liquid; Nozzle b (5203), the connecting pipe (5202) is fixedly connected with a nozzle b (5203) for spraying cleaning liquid; Cleaning sponge (5204), the mounting frame (5201) is rotatably connected with the cleaning sponge (5204), and the rotating cleaning sponge (5204) can cooperate with the cleaning liquid to scrub the PCB (00); Motor b (5205), the platform (12) is fixedly connected with motor b (5205), and the output end of motor b (5205) is fixed to the cleaning sponge (5204); It also includes: a support plate (24), the support plate (24) being fixedly connected to the platform (12); A pulley (25) is rotatably connected to the support plate (24); A belt (26) is wound around the pulley (25); The spacer (27) is fixedly connected to the belt (26), a partition groove (2701) is formed between two adjacent spacers (27), and the PCB (00) is inserted into the partition groove (2701). The moving belt (26) can transport the PCB (00) to automatically replenish the PCB (00) in the direction of the pushing frame (22). When the pushing frame (22) moves the PCB (00), it can move the belt (26) through the spacer (27).

2. A PCB board washing device according to claim 1, characterized in that: The cleaning range width of the cleaning machine a (51) and the cleaning machine b (52) is greater than the width of the PCB (00), so as to increase the time for the cleaning machine a (51) and the cleaning machine b (52) to clean the PCB (00).

3. A PCB board washing device according to claim 2, characterized in that: The top of the spacer (27) is configured to be arc-shaped to guide the auxiliary PCB (00) to be inserted into the spacer groove (2701).

4. A PCB board washing device according to claim 3, characterized in that: Also includes: A mounting column (31), the platform (12) is fixedly connected with the mounting column (31); Motor a (32), the mounting column (31) is fixedly connected with motor a (32); A missing gear (33), the mounting column (31) is rotatably connected with the missing gear (33), and the missing gear (33) is fixed to the output end of the motor a (32); The inner gear ring (34) is fixedly connected to the transfer frame (13), the missing gear (33) is meshed with the inner gear ring (34), and the motor a (32) drives the transfer frame (13) to rotate intermittently.

5. A PCB board washing device according to claim 4, characterized in that: Also includes: A connecting plate group (35) is arranged between the output end of the motor a (32) and the pusher frame (22). The motor a (32) controls the pusher frame (22) to reciprocate through the connecting plate group (35), and makes the movement of the pusher frame (22) coordinated with the rotation of the transfer frame (13).

6. A PCB board washing device according to claim 5, characterized in that: Also includes: A guide block (41), the frame (21) is rotatably connected with the guide block (41), the spacing between the guide blocks (41) is consistent with the length of the partition groove (2701), and the position of the spacing corresponds to the partition groove (2701); Inclined plate (42), the guide block (41) is fixedly connected with the inclined plate (42), and the PCB (00) is guided and inserted into the partition groove (2701) under the action of the inclined plate (42); A torsion spring (43), wherein the guide block (41) and the frame (21) are fixedly connected with the torsion spring (43), and the torsion spring (43) is sleeved on the shaft of the guide block (41); A stop block (44) is fixedly connected to the frame (21), and the stop block (44) is correspondingly arranged on the side of each guide block (41).

7. A PCB board washing device according to claim 6, characterized in that: Also includes: A rotating frame (61), the platform (12) is rotatably connected to the rotating frame (61); A roller (62) is rotatably connected to the rotating frame (61), and at least three rollers (62) are provided. When the roller (62) is located at a position on the rotating frame (61) closest to the transfer frame (13), the roller (62) at this position can extend beyond the frame opening (1301) and into the inner side of the transfer frame (13); A discharge port (63) is provided on the platform (12), and the discharge port (63) is located below the rotating frame (61).

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