Cleaning mechanism, cleaning equipment and PCB processing equipment

Abstract

The utility model belongs to the technical field of main shaft cleaning, and particularly relates to a cleaning mechanism, cleaning equipment and PCB machining equipment. The cleaning mechanism comprises a shell, a fixed seat and a cleaning part, the shell is provided with a cavity, the fixed seat is suitable for placing the cleaning part, and the cleaning part and the fixed seat are arranged in the cavity at an interval; a liquid spraying channel and a recycling channel are arranged in the cleaning part, one end of the liquid spraying channel is used for being connected with the liquid storage bin, and the other end of the liquid spraying channel is used for spraying out cleaning liquid; and the recycling channel is used for recycling the cleaning liquid which is sprayed out of the liquid spraying channel and falls into the cavity. Cleaning liquid can be accurately guided to a part needing to be cleaned through the liquid spraying channel, waste of the cleaning liquid is reduced, the recycling channel can timely recycle the sprayed and falling cleaning liquid to the cavity, cyclic utilization of the cleaning liquid is achieved, continuous supply of the cleaning liquid is guaranteed, and the cleaning effect is improved. And the situation that the cleaning liquid needs to be frequently supplemented due to insufficient cleaning liquid and the situation that the splashing cleaning liquid is cleaned are avoided, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of spindle cleaning technology, and in particular relates to a cleaning mechanism, cleaning equipment and PCB processing equipment. Background Technology

[0002] PCB drilling machines are used to drill holes in PCB boards. The chuck of the high-speed spindle of the PCB drilling machine is used to mount the cutting tools. Because dust or debris is generated during processing, it may adhere to the chuck, thus affecting the drilling accuracy of the cutting tools. Therefore, the chuck needs to be cleaned regularly.

[0003] Currently, cleaning is mainly done manually. The equipment structure at the chuck is relatively compact, leaving little space for manual cleaning, which makes cleaning inconvenient, results in low cleaning efficiency, and there are significant differences in manual cleaning. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a cleaning mechanism, cleaning equipment and PCB processing equipment to address the problem of low cleaning efficiency in existing systems.

[0005] To solve the above-mentioned technical problems, on the one hand, this utility model provides a cleaning mechanism, including a housing, a fixed seat and a cleaning component. The housing is provided with a cavity, the fixed seat is adapted to place the cleaning component, the cleaning component and the fixed seat are spaced apart in the cavity, and a return port is provided on one side of the housing, the return port is connected to the cavity.

[0006] The cleaning component is provided with a spray channel and a recovery channel inside. One end of the spray channel is used to connect to the liquid storage tank, and the other end of the spray channel is used to spray out the cleaning liquid.

[0007] The recycling channel is connected to the cavity, and the recycling channel is used to allow the cleaning fluid to flow into the recycling chamber through the return port.

[0008] Optionally, the cleaning component includes a first cleaning component and a second cleaning component, the second cleaning component being sleeved on the outside of the first cleaning component, the spray channel being located inside the first cleaning component, and the recovery channel being located between the outer wall surface of the first cleaning component and the inner wall surface of the second cleaning component.

[0009] Optionally, the first cleaning member has at least one spray hole at the end away from the housing, and the spray channel communicates with at least one of the spray holes.

[0010] Optionally, the cleaning component further includes a connecting seat, which is mounted on the housing, and the first cleaning component and the second cleaning component are connected to the side of the connecting seat away from the housing;

[0011] The connector is provided with a connection hole, and the liquid spraying channel is connected to the liquid storage tank through the connection hole.

[0012] Optionally, the connecting seat is provided with a drain port, and the recycling channel is connected to the cavity through the drain port.

[0013] Optionally, the cleaning component further includes a drainage component, which is sleeved on the outside of the second cleaning component and is used to guide the fallen cleaning liquid into the recycling channel.

[0014] Optionally, the housing is provided with a groove and a liquid inlet, the liquid inlet is connected to the liquid spraying channel, the groove is located at the end of the cavity away from the cleaning component, and the groove is connected between the liquid return port and the cavity.

[0015] Optionally, the cleaning mechanism further includes a cleaning component detachably mounted on the mounting base, the cleaning component being used to extend into the chuck on the spindle of the PCB processing equipment for cleaning.

[0016] Optionally, the cleaning mechanism further includes a sealing cover, which is installed on the housing and seals the cavity. The sealing cover is provided with a first through hole and a second through hole, the first through hole being for the cleaning component to pass through, and the second through hole being for the cleaning component to pass through.

[0017] Optionally, the cleaning component includes a brush head and a brush handle, with the brush head mounted on one end of the brush handle and the other end of the brush handle detachably connected to the mounting base.

[0018] On the other hand, this utility model embodiment provides a cleaning device, including a liquid storage tank, a recovery tank, and a cleaning mechanism as described above. One end of the spray channel can be selectively connected to one of the liquid storage tank and the recovery tank, and the recovery channel is connected to the recovery tank through the cavity.

[0019] Optionally, the cleaning equipment further includes a switching element for controlling one end of the spray channel to connect to the liquid storage tank or the recovery tank.

[0020] Optionally, the switching component has a first interface, a second interface, and a third interface, wherein the first interface is connected to the spray channel, the second interface is connected to the storage tank, and the third interface is connected to the recovery tank;

[0021] When the first interface is connected to the second interface, the liquid spraying channel is connected to the liquid storage tank;

[0022] When the first interface is connected to the third interface, the liquid spraying channel is connected to the recovery chamber.

[0023] Optionally, the cleaning equipment further includes an inlet pipe and an outlet pipe, wherein the inlet pipe can connect the spray channel and the storage tank, and the outlet pipe can connect the spray channel and the recovery tank or the recovery channel and the recovery tank.

[0024] Optionally, the liquid outlet pipeline includes a first pipeline and a second pipeline, wherein the first pipeline can connect the liquid spraying channel and the recovery chamber, and the second pipeline connects the recovery channel and the recovery chamber.

[0025] Optionally, the liquid outlet pipeline further includes a third pipeline and a first tee connector. The first tee connector has a first connecting end, a second connecting end, and a third connecting end. The first pipeline can connect the first connecting end to the liquid spraying channel, the second pipeline connects the second connecting end to the recovery channel, and the third pipeline connects the third connecting end to the recovery chamber.

[0026] Optionally, the cleaning equipment further includes a first main pipeline and a second main pipeline, multiple cleaning mechanisms are provided, multiple liquid inlet pipelines are provided and connected in parallel, the liquid storage tank is connected to multiple liquid inlet pipelines through the first main pipeline, and the multiple liquid inlet pipelines are provided in one-to-one correspondence with the cleaning components of the multiple cleaning mechanisms;

[0027] The liquid outlet pipeline is provided in multiple and connected in parallel. The recovery chamber is connected to the multiple liquid outlet pipelines through the second main pipeline. The multiple liquid outlet pipelines are provided one-to-one with the cleaning components of the multiple cleaning mechanisms.

[0028] Optionally, the cleaning equipment further includes a pressure regulating valve, a reversing valve, a solenoid valve, and a vacuum generator. The inlet of the pressure regulating valve is connected to a first air source device, the outlet of the pressure regulating valve is connected to the inlet of the reversing valve, and the outlet of the reversing valve is connected to the liquid storage tank.

[0029] The vacuum generator is connected between the recovery chamber and the solenoid valve. The solenoid valve is used to control the connection and disconnection between the second gas source device and the vacuum generator. The vacuum generator is used to create a negative pressure inside the recovery chamber.

[0030] On the other hand, this utility model embodiment provides a PCB processing equipment, including a spindle and a cleaning device as described above. The cleaning mechanism is located below the spindle, and a chuck is installed on the spindle. The end of the spray channel away from the liquid storage tank can spray cleaning liquid onto the chuck.

[0031] In this embodiment, the spray channel precisely guides the cleaning fluid to the areas requiring cleaning, reducing waste and increasing utilization. The recovery channel promptly collects the sprayed and falling cleaning fluid back into the cavity, which then flows into the recovery chamber through the return port, achieving fluid recycling. This ensures a continuous supply of cleaning fluid, avoiding frequent replenishment due to insufficient fluid and the need to clean up splashed fluid, saving time and improving cleaning efficiency. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a cleaning mechanism provided in an embodiment of the present invention;

[0033] Figure 2 This is an exploded view of a cleaning mechanism provided in an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of a cleaning component provided in an embodiment of the present invention;

[0035] Figure 4 This is a cross-sectional schematic diagram of a cleaning component provided in an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of a cleaning device provided in an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the inlet and outlet pipes provided in one embodiment of the present invention.

[0038] The reference numerals in the accompanying drawings are as follows:

[0039] 10. Cleaning mechanism; 11. Housing; 111. Cavity; 112. Liquid inlet; 113. Liquid return outlet; 114. Groove; 12. Cleaning component; 121. First cleaning component; 1211. Spray nozzle; 122. Second cleaning component; 123. Connecting seat; 1231. Connecting hole; 1232. Drain outlet; 124. Spray channel; 125. Recovery channel; 126. Drainage component; 1261. Sealing ring; 13. Fixing seat; 131. Top screw opening; 14. Cleaning component; 141. Brush head; 142. Brush handle; 15. Sealing cover; 151. First through hole; 152. Second through hole; 16. Protective cover.

[0040] 20. Liquid storage tank; 21. Pressure regulating valve; 22. Directional control valve; 23. Liquid level sensor;

[0041] 30. Recovery bin; 31. Solenoid valve; 32. Vacuum generator;

[0042] 40. Switching component; 41. First interface; 42. Second interface; 43. Third interface;

[0043] 50. Liquid inlet line; 51. Throttling valve;

[0044] 60. Liquid outlet pipeline; 61. First pipeline; 62. Second pipeline; 63. Third pipeline; 64. First tee connector;

[0045] 70. First main pipe; 701. Second tee connector; 80. Second main pipe; 801. Third tee connector. Detailed Implementation

[0046] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0047] like Figures 1 to 6 As shown, an embodiment of the present invention provides a cleaning mechanism 10, including a housing 11, a fixing seat 13, and a cleaning component 12. The housing 11 is provided with a cavity 111, and the fixing seat 13 is adapted to place the cleaning component 14. The cleaning component 12 and the fixing seat 13 are spaced apart in the cavity 111. A return port 113 is provided on one side of the housing 11, and the return port 113 communicates with the cavity 111.

[0048] The cleaning component 12 has a spray channel 124 and a recovery channel 125 inside. One end of the spray channel 124 is connected to the liquid storage tank 20, and the other end is used to spray out the cleaning liquid. The recovery channel 125 is connected to the cavity 111 and is used to allow the cleaning liquid to flow into the external recovery tank 30 through the return port 113. Since the recovery channel 125, the cavity 111, and the return port 113 are connected in sequence, the cleaning liquid sprayed out and falling from the spray channel 124 flows into the cavity 111 through the recovery channel 125, and then the cleaning liquid in the cavity 111 is discharged into the external recovery tank 30 through the return port 113, thus completing the recovery of the cleaning liquid.

[0049] The liquid reservoir 20 supplies cleaning fluid to the cleaning component 12 through one end of the spray channel 124. Under pressure, the cleaning fluid is sprayed out from the other end of the spray channel 124, forming a cleaning fluid flow with a certain pressure and velocity to rinse the object to be cleaned. The rinsing and dissolving action of the cleaning fluid removes dirt and impurities from the object's surface. After continuous spraying of the cleaning fluid for a period of time, stubborn residues gradually soften under the wetting and dissolving action of the cleaning fluid. After stopping the spraying, the cleaning component 14 is inserted into the chuck to precisely wipe and scrape away the softened residue, improving the cleanliness of the spindle chuck.

[0050] The cleaning fluid sprayed from the spray channel 124 will fall naturally after rinsing the object to be cleaned. The recovery channel 125 uses gravity or other auxiliary power (such as negative pressure) to collect the falling cleaning fluid and let it flow into the recovery chamber 30 through the cavity 111 and the return port 113, thereby realizing the recycling or centralized treatment of the cleaning fluid, avoiding waste of cleaning fluid and reducing cleaning costs.

[0051] In this embodiment, the spray channel 124 can accurately guide the cleaning fluid to the area requiring cleaning, reducing waste and improving utilization. The recovery channel 125 can promptly collect the sprayed and falling cleaning fluid back into the cavity 111, achieving fluid recycling. This ensures a continuous supply of cleaning fluid, avoiding frequent replenishment due to insufficient fluid and the need to clean up splashed fluid, saving time and improving cleaning efficiency.

[0052] In one embodiment, the cleaning component 12 includes a first cleaning component 121 and a second cleaning component 122. The second cleaning component 122 is sleeved on the outside of the first cleaning component 121. The spray channel 124 is located inside the first cleaning component 121. The recovery channel 125 is located between the outer wall surface of the first cleaning component 121 and the inner wall surface of the second cleaning component 122, so that the recovery channel 125 surrounds the spray channel 124 and can uniformly recover the cleaning liquid from all directions after the cleaning liquid is sprayed out.

[0053] The first cleaning component 121 and the second cleaning component 122 are both cylindrical structures, and the recycling channel 125 is an annular channel.

[0054] In one embodiment, the first cleaning component 121 has at least one spray hole 1211 at its end away from the housing 11, and the spray channel 124 communicates with the at least one spray hole 1211. The spray hole 1211 allows adjustment of the cleaning fluid spray direction, thereby concentrating the cleaning fluid onto the area requiring cleaning. In this embodiment, by providing multiple spray holes 1211, multi-directional coverage of the spindle chuck can be achieved when spraying the cleaning fluid.

[0055] The opening direction of the spray hole 1211 is perpendicular to the central axis direction of the first cleaning component 121, so that the cleaning fluid can directly clean the inside of the spindle chuck.

[0056] In one embodiment, multiple spray holes 1211 are provided and arranged around the central axis of the first cleaning member 121, which can ensure the uniformity of the cleaning effect.

[0057] In one embodiment, the cleaning component 12 further includes a connecting seat 123, which is mounted on the housing 11 and located in the cavity 111. The first cleaning component 121 and the second cleaning component 122 are connected to the side of the connecting seat 123 away from the housing 11. The first cleaning component 121 and the second cleaning component 122 are integrated together by the connecting seat 123. When the cleaning component 12 needs to be inspected or replaced, the connecting seat 123 can be removed from the housing 11 to operate the cleaning component 12.

[0058] The connecting seat 123 is provided with a connecting hole 1231. The spray channel 124 is connected to the liquid storage tank 20 through the connecting hole 1231. By providing the connecting hole 1231 on the connecting seat 123, the cleaning liquid in the liquid storage tank 20 can flow smoothly into the spray channel 124 and then be sprayed out through the spray hole 1211 to achieve the cleaning function of the spindle chuck.

[0059] The diameters of the connecting holes 1231 are not uniform along the central axis of the first cleaning component 121. The diameter of the connecting hole 1231 at the end closer to the first cleaning component 121 is smaller than the diameter at the end farther away from the first cleaning component 121. The diameter at the end farther away from the first cleaning component 121 is larger, which facilitates receiving the cleaning fluid delivered from the storage tank 20. The diameter of the connecting hole 1231 at the end closer to the first cleaning component 121 is consistent with the inner diameter of the spray channel 124, making the cleaning fluid more concentrated after entering the spray channel 124, forming a narrower spray range, which helps to accurately guide the cleaning fluid to the location that needs to be cleaned.

[0060] In one embodiment, the connector 123 is provided with a drain port 1232, and the recovery channel 125 is connected to the cavity 111 through the drain port 1232, so that the cleaning liquid recovered by the recovery channel 125 can be exported and stored in the cavity 111.

[0061] The opening direction of the drain port 1232 is perpendicular to the central axis direction of the first cleaning component 121. The drain port 1232 changes the flow direction of the cleaning liquid and guides the recovered cleaning liquid into the cavity 111.

[0062] In one embodiment, the cleaning component 12 further includes a guide component 126, which is sleeved on the outside of the second cleaning component 122. The guide component 126 is used to guide the falling cleaning fluid into the recovery channel 125. The guide component 126 guides the falling cleaning fluid into the recovery channel 125, effectively preventing the cleaning fluid from splashing onto the equipment workbench or other components, thus keeping the work area clean.

[0063] In the direction of the central axis of the cleaning component 12, the length of the drainage component 126 is greater than that of the second cleaning component 122, thereby providing a more stable and continuous guiding path and expanding the guiding range.

[0064] In one embodiment, a sealing ring 1261 is provided on the outer side of the end of the drain member 126 near the connecting seat 123, which can effectively reduce the leakage of cleaning fluid from the gap between the drain member 126 and the second cleaning member 122. The end of the drain member 126 near the connecting seat 123 abuts against the connecting seat 123, and the end of the drain member 126 away from the connecting seat 123 abuts against the chuck of the spindle, which can enclose the space between the chuck and the cleaning member 12 to prevent cleaning fluid from splashing during the cleaning process.

[0065] Preferably, the drain element 126 is made of rubber and has a certain sealing performance when it abuts against the main shaft.

[0066] In one embodiment, the housing 11 is provided with a groove 114 and a liquid inlet 112. The liquid inlet 112 is connected to the spray channel 124, so that the cleaning liquid in the liquid storage tank 20 flows into the spray channel 124 after passing through the liquid inlet 112 and the connecting hole 1231 in sequence, and then sprays out through the spray hole 1211 to achieve the cleaning function of the spindle chuck.

[0067] The groove 114 is located at the end of the cavity 111 away from the cleaning component 12, and connects the return port 113 to the cavity 111. The return port 113 is located on the side wall of the cavity 111. One end of the groove 114 is located in the cavity 111, and the other end of the groove 114 extends to the return port 113. The groove 114 has a guiding function, guiding the cleaning fluid in the cavity 111 to the return port 113, and then transporting the cleaning fluid to the recovery chamber 30 through the return port 113. In addition, when the cleaning fluid flows from the cavity 111 to the return port 113, the groove 114 acts as a buffer and impurity sedimentation area, which can slow down the flow rate of the cleaning fluid and effectively intercept impurities in the cleaning fluid, reducing the risk of clogging of the return port 113.

[0068] In one embodiment, the cleaning mechanism 10 further includes a cleaning element 14, which is used to extend into the chuck on the spindle of the PCB processing equipment for cleaning. The cleaning element 14 is detachably mounted on the mounting base 13, enabling quick assembly and disassembly of the cleaning element 14.

[0069] The cleaning component 14 includes a brush head 141 and a brush rod 142. The brush head 141 is mounted on the brush rod 142, and the brush rod 142 is detachably connected to the fixed base 13. After the spraying stops, the brush head 141 is inserted into the chuck to precisely wipe and scrape away the softened residue, thereby improving the cleanliness of the spindle chuck.

[0070] The mounting base 13 is provided with a set screw opening 131. By installing a set screw in the set screw opening 131, the cleaning component 14 can be disassembled and installed. Specifically, the set screw is screwed into the set screw opening 131. As the set screw is gradually tightened, its end can firmly press against the brush rod 142, forming a stable mechanical fastening force to ensure that the brush rod 142 remains stable on the mounting base 13. When the cleaning component 14 reaches the end of its service life or needs to be replaced, the operator only needs to loosen the set screw to release the binding force on the brush rod 142, and the brush rod 142 can be quickly and smoothly removed from the mounting base 13, completing the replacement process of the cleaning component 14.

[0071] In one embodiment, the cleaning mechanism 10 further includes a sealing cover 15, which is installed on the housing 11 and seals the cavity 111. The sealing cover 15 has a first through hole 151 and a second through hole 152. When the sealing cover 15 is installed on the housing 11, the first through hole 151 is used for the cleaning component 12 to pass through, and the second through hole 152 is used for the cleaning component 14 to pass through. By sealing the cavity 111 with the sealing cover 15, the interference of the airflow inside the spindle on the cleaning fluid in the cavity 111 can be suppressed, effectively preventing the cleaning fluid from being splashed out.

[0072] In one embodiment, the cleaning mechanism 10 further includes a protective cover 16. When not performing cleaning work, the protective cover 16 is connected to the housing 11 and protects the cleaning component 12 and the cleaning component 14 to prevent dust from falling on the brush head 141 and affecting the cleaning effect of the brush head 141.

[0073] On the other hand, this utility model embodiment provides a cleaning device, including a liquid storage tank 20, a recovery tank 30, and the cleaning mechanism 10 described in the above embodiment. The liquid storage tank 20 is used to store cleaning liquid. One end of the spray channel 124 can be selectively connected to either the liquid storage tank 20 or the recovery tank 30. The spray channel 124 has flexible connectivity and can freely switch between the liquid storage tank 20 and the recovery tank 30 according to the actual working state. When preparing to perform cleaning work, one end of the spray channel 124 is connected to the recovery tank 30, and the negative pressure device connected to the recovery tank 30 is immediately activated, forming a negative pressure inside the recovery tank 30 and the spray channel 124. This negative pressure mechanism forms a strong adsorption force, which can block the impact of airflow inside the spindle of the processing equipment, reduce cleaning liquid splashing and leakage caused by airflow impact, and reduce waste.

[0074] During cleaning, one end of the spray channel 124 is connected to the liquid storage tank 20, and the cleaning liquid is sprayed out through the spray channel 124 to clean the object that needs to be cleaned.

[0075] The recovery channel 125 is connected to the recovery chamber 30 via the cavity 111. A negative pressure device creates a negative pressure inside the recovery chamber 30, allowing the cleaning fluid recovered in the recovery channel 125 to smoothly enter the recovery chamber 30. In this embodiment, the cleaning and recovery requirements of the cleaning fluid are achieved through the spray channel 124 and the recovery channel 125.

[0076] In one embodiment, the cleaning equipment further includes a switching element 40, which controls one end of the spray channel 124 to connect to the liquid storage tank 20 or the recovery tank 30. The switching element 40 enables automated switching of the connection position of the spray channel 124.

[0077] Preferably, the switching element 40 is a two-position three-way solenoid valve, mainly comprising a solenoid coil, a valve core, and a valve body. The solenoid coil is wrapped around the outside of the valve body and generates a magnetic field when energized. The valve core is located inside the valve body and can move linearly. The valve body has three channel interfaces, namely the first interface 41, the second interface 42, and the third interface 43. The linear movement of the valve core enables the connection of different channel interfaces. The switching element 40 ensures that the spray channel 124 is connected to only one compartment at a time, preventing the fresh cleaning liquid in the storage compartment 20 from mixing with the recycled cleaning liquid in the recovery compartment 30, effectively preventing cross-contamination.

[0078] In one embodiment, the switching component 40 has a first interface 41, a second interface 42, and a third interface 43. The first interface 41 is connected to the spray channel 124, the second interface 42 is connected to the storage tank 20, and the third interface 43 is connected to the recovery tank 30. When the first interface 41 and the second interface are connected, the spray channel 124 is connected to the storage tank 20. The cleaning fluid in the storage tank 20 enters the spray channel 124 after passing through the second interface 42 and the first interface 41 in sequence. The cleaning fluid is then sprayed out through the spray channel 124 to clean the chuck on the spindle of the PCB processing equipment.

[0079] When the first interface 41 and the third interface 43 are connected, the spray channel 124 is connected to the recovery chamber 30, which can effectively block the impact of the main shaft airflow on the cleaning fluid.

[0080] In one embodiment, the cleaning equipment further includes an inlet pipe 50 and an outlet pipe 60. The inlet pipe 50 connects the spray channel 124 to the storage tank 20, and the outlet pipe 60 connects the spray channel 124 to the recovery tank 30 or the recovery channel 125 to the recovery tank 30. When in a non-cleaning state, the spray channel 124 is connected to the recovery tank 30 via the outlet pipe 60. When in a cleaning state, the cleaning fluid in the storage tank 20 is transported to the spray channel 124 via the inlet pipe 50. The spray channel 124 sprays cleaning fluid to clean the spindle chuck. The cleaning fluid that falls off after rinsing is collected in the recovery channel 125, and the recovery channel 125 transports the recovered cleaning fluid to the recovery tank 30 via the outlet pipe 60.

[0081] In one embodiment, the cleaning device further includes a throttle valve 51, which is disposed in the liquid inlet pipe 50. The throttle valve 51 is used to adjust the flow rate of the liquid inlet pipe 50, thereby adjusting the amount of cleaning liquid sprayed in the spray channel 124, thereby improving cleaning efficiency and minimizing cleaning liquid waste.

[0082] In one embodiment, the liquid outlet pipeline 60 includes a first pipeline 61 and a second pipeline 62. The first pipeline 61 connects the liquid spraying channel 124 and the recovery chamber 30, and the second pipeline 62 connects the recovery channel 125 and the recovery chamber 30. By providing two pipelines, the liquid spraying channel 124 can be connected to the liquid storage chamber 20, and the liquid spraying channel 124 can be connected to the recovery chamber 30, respectively.

[0083] When the first interface 41 of the switching component 40 is connected to the third interface 43, the spray channel 124 is connected to the recovery chamber 30 through the first pipeline 61, and the recovery channel 125 is connected to the recovery chamber 30 through the second pipeline 62. When the negative pressure equipment is started, negative pressure is formed in the spray channel 124 and the recovery channel 125 to reduce the impact of the main shaft airflow on the cleaning fluid.

[0084] When the first interface 41 of the switching component 40 is connected to the second interface 42, the spray channel 124 is connected to the storage tank 20 through the inlet pipe 50, and the cleaning fluid in the storage tank 20 is transported to the spray channel 124 through the inlet pipe 50. The recovery channel 125 is connected to the recovery tank 30 through the second pipe 62, and the recovered cleaning fluid is transported to the recovery tank 30 through the second pipe 62.

[0085] In one embodiment, the liquid outlet pipeline 60 further includes a third pipeline 63 and a first tee connector 64. The first tee connector 64 has a first connecting end, a second connecting end and a third connecting end. The first pipeline 61 can connect the first connecting end and the liquid spraying channel 124. The second pipeline 62 connects the second connecting end and the recovery channel 125. The third pipeline 63 connects the third connecting end and the recovery chamber 30.

[0086] The first tee connector 64 serves as a connecting hub, with its three ends connected to the first pipe 61, the second pipe 62, and the third pipe 63, respectively. The second pipe 62 and the third pipe 63 are connected through the first tee connector 64, thereby connecting the recovery channel 125 to the recovery chamber 30. When the first interface 41 of the switching component 40 is connected to the third interface 43, the liquid spraying channel 124 is connected to the recovery chamber 30 through the first tee connector 64, the first pipe 61, and the third pipe 63.

[0087] The first tee connector 64 connects the first pipeline 61 and the second pipeline 62 to the third pipeline 63, and then the third pipeline 63 is connected to the recovery bin 30, which simplifies the internal piping structure of the equipment.

[0088] In one embodiment, the first tee connector 64 is a Y-type tee connector or a T-type tee connector.

[0089] In one embodiment, the cleaning equipment further includes a first main pipeline 70 and a second main pipeline 80. Multiple cleaning mechanisms 10 are provided, and multiple inlet pipelines 50 are provided and connected in parallel. The storage tank 20 is connected to the multiple inlet pipelines 50 through the first main pipeline 70, distributing cleaning fluid to the multiple inlet pipelines 50 through the first main pipeline 70 to ensure a stable and uniform flow rate of cleaning fluid in each inlet pipeline 50. The multiple inlet pipelines 50 are arranged one-to-one with the cleaning components 12 of the multiple cleaning mechanisms 10, and each inlet pipeline 50 connects the storage tank 20 to the spray channel 124 of the corresponding cleaning component 12. Each inlet pipeline 50 is independent and does not interfere with others, ensuring that each cleaning component 12 receives a stable supply of cleaning fluid.

[0090] Each liquid inlet pipe 50 is equipped with a throttle valve 51. By adjusting the throttle valve 51, the amount of liquid sprayed from the spray channels 124 of each cleaning component 12 can be made consistent.

[0091] Multiple outlet pipes 60 are provided and connected in parallel. The recovery chamber 30 is connected to the multiple outlet pipes 60 through a second main pipe 80. The second main pipe 80 can collect the cleaning fluid from the multiple outlet pipes 60 into the recovery chamber 30, which facilitates centralized processing of the recovered cleaning fluid. The multiple outlet pipes 60 are arranged one-to-one with the cleaning components 12 of the multiple cleaning mechanisms 10.

[0092] Specifically, the recovery chamber 30 is connected to the spray channel 124 of each cleaning component 12 through the first pipe 61 and the third pipe 63 of the corresponding outlet pipe 60. The recovery chamber 30 is connected to the recovery channel 125 of each cleaning component 12 through the second pipe 62 and the third pipe 63 of the corresponding outlet pipe 60, thereby realizing the recovery of cleaning fluid from each cleaning component 12.

[0093] It is understood that in this embodiment, multiple first tee connectors 64 are provided, matching the number of cleaning components 12, and multiple switching components 40 are provided, matching the number of cleaning components 12. When the first interface 41 of the switching component 40 is connected to the third interface 43, the spray channel 124 is connected to the recovery chamber 30 through the corresponding first tee connector 64, first pipe 61, and third pipe 63. When the switching component 40 switches states, the spray channel 124 is disconnected from the first pipe 61, and simultaneously connected to the inlet pipe 50, enabling the delivery of cleaning fluid. The second pipe 62 is connected to the third pipe 63, recovering the wastewater in the recovery channel 125 to the recovery chamber 30.

[0094] In one embodiment, the first main pipeline 70 and each inlet pipeline 50 can be connected by a second tee connector 701 at their intersection, and the second main pipeline 80 and each outlet pipeline 60 can be connected by a third tee connector 801 at their intersection.

[0095] In one embodiment, the cleaning equipment further includes a pressure regulating valve 21, a reversing valve 22, a solenoid valve 31, and a vacuum generator 32. The inlet of the pressure regulating valve 21 is connected to a first gas source device, and the outlet of the pressure regulating valve 21 is connected to the inlet of the reversing valve 22. The outlet of the reversing valve 22 is connected to the liquid storage tank 20. The reversing valve 22 is used to control the connection or disconnection between the first gas source device and the liquid storage tank 20. The pressure regulating valve 21 can adjust the gas pressure input from the first gas source device to a suitable range, and the stable gas pressure acts on the cleaning liquid in the liquid storage tank 20 to ensure that the pressure of the cleaning liquid sprayed from the spray channel 124 is constant.

[0096] The pressure regulating valve 21 typically regulates fluid pressure through a feedback mechanism. When the inlet pressure changes or the outlet load changes, the pressure regulating valve 21 automatically adjusts the position of its internal valve core to maintain a stable outlet pressure. The pressure regulating valve 21 can be a conventional direct-acting valve 21, a pilot-operated valve 21, or an electrically operated valve 21; the specific structure of the pressure regulating valve 21 will not be described in detail here.

[0097] The directional valve 22 can be a solenoid directional valve, an electro-hydraulic directional valve, a manual directional valve, or a pneumatic directional valve.

[0098] In one embodiment, a vacuum generator 32 is connected between the recovery chamber 30 and the solenoid valve 31. The solenoid valve 31 is used to control the connection between the second gas source device and the vacuum generator 32. When the solenoid valve 31 controls the connection between the second gas source device and the vacuum generator 32, a negative pressure is formed in the recovery chamber 30 through the vacuum generator 32.

[0099] When the injection channel 124 is connected to the recovery chamber 30, the vacuum generator 32 creates negative pressure in both the return oil channel and the injection channel 124, which helps to recover the cleaning fluid in the spindle chuck, the injection channel, and the recovery channel 125 into the recovery chamber 30.

[0100] Among them, the solenoid valve 31 is preferably a vacuum solenoid valve.

[0101] In one embodiment, a liquid level sensor 23 is provided on the liquid storage tank 20. The liquid level sensor 23 is used to detect the liquid level of the cleaning liquid in the liquid storage tank 20. The liquid level sensor 23 can detect the amount of cleaning liquid stored in the liquid storage tank 20 so that the cleaning liquid can be replenished in time.

[0102] On the other hand, this utility model embodiment provides a PCB processing equipment, including a spindle and the cleaning equipment of the above embodiment. The cleaning mechanism 10 is located below the spindle, and a chuck is installed on the spindle. The cleaning liquid in the liquid storage tank 20 can be transported to the spray channel 124. The cleaning liquid can be sprayed onto the chuck through the spray channel 124. The cleaning liquid that falls off after rinsing the chuck is recycled to the recycling tank 30 through the recycling channel 125.

[0103] In one embodiment, multiple spindles are provided, and multiple cleaning mechanisms 10 are provided. The spray channel 124 of each cleaning component 12 can spray cleaning liquid onto the chuck on the corresponding spindle for cleaning.

[0104] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A cleaning mechanism, characterized by, The device includes a housing, a mounting base, and a cleaning component. The housing has a cavity, the mounting base is adapted to hold the cleaning component, the cleaning component and the mounting base are spaced apart in the cavity, and a return port is provided on one side of the housing, which communicates with the cavity. The cleaning component is provided with a spray channel and a recovery channel. One end of the spray channel is used to connect to the liquid storage tank, and the other end of the spray channel is used to spray out the cleaning liquid. The recycling channel is connected to the cavity, and the recycling channel is used to allow the cleaning fluid to flow into the recycling chamber through the return port.

2. The cleaning mechanism of claim 1, wherein, The cleaning component includes a first cleaning component and a second cleaning component. The second cleaning component is sleeved on the outside of the first cleaning component. The spray channel is located inside the first cleaning component. The recovery channel is located between the outer wall surface of the first cleaning component and the inner wall surface of the second cleaning component.

3. The cleaning mechanism of claim 2, wherein, The first cleaning component has at least one spray hole at the end away from the housing, and the spray channel communicates with at least one of the spray holes.

4. The cleaning mechanism of claim 2, wherein, The cleaning component further includes a connecting seat, which is mounted on the housing, and the first cleaning component and the second cleaning component are connected to the connecting seat on the side opposite to the housing; The connector is provided with a connection hole, and the liquid spraying channel is connected to the liquid storage tank through the connection hole.

5. The cleaning mechanism of claim 4, wherein, The connector is provided with a drain port, and the recycling channel is connected to the cavity through the drain port.

6. The cleaning mechanism of claim 2, wherein, The cleaning component also includes a drainage component, which is sleeved on the outside of the second cleaning component and is used to guide the fallen cleaning liquid into the recycling channel.

7. The cleaning mechanism of claim 1, wherein, The housing is provided with a groove and a liquid inlet. The liquid inlet is connected to the liquid spraying channel. The groove is located at the end of the cavity away from the cleaning component. The groove is connected between the liquid return port and the cavity.

8. The cleaning mechanism of claim 1, wherein, The cleaning mechanism also includes a cleaning component, which is detachably mounted on the fixed base and is used to extend into the chuck on the spindle of the PCB processing equipment for cleaning.

9. The cleaning mechanism of claim 8, wherein, The cleaning mechanism also includes a sealing cover, which is installed on the housing and seals the cavity. The sealing cover is provided with a first through hole and a second through hole, the first through hole being for the cleaning component to pass through, and the second through hole being for the cleaning component to pass through.

10. The cleaning mechanism of claim 8, wherein, The cleaning component includes a brush head and a brush handle, with the brush head mounted on one end of the brush handle and the other end of the brush handle detachably connected to the mounting base.

11. A cleaning apparatus, characterized by The device includes a liquid storage tank, a recovery tank, and a cleaning mechanism as described in any one of claims 1-10, wherein one end of the spray channel is optionally connected to one of the liquid storage tank and the recovery tank, and the recovery channel is connected to the recovery tank through the cavity.

12. The cleaning apparatus of claim 11, wherein, The cleaning equipment also includes a switching component, which controls one end of the spray channel to connect to the liquid storage tank or the recovery tank.

13. The cleaning apparatus of claim 12, wherein, The switching component has a first interface, a second interface, and a third interface. The first interface is connected to the spray channel, the second interface is connected to the storage tank, and the third interface is connected to the recovery tank. When the first interface is connected to the second interface, the liquid spraying channel is connected to the liquid storage tank; When the first interface is connected to the third interface, the liquid spraying channel is connected to the recovery chamber.

14. The cleaning apparatus of claim 11, wherein, The cleaning equipment also includes an inlet pipe and an outlet pipe. The inlet pipe can connect the spray channel and the storage tank, and the outlet pipe can connect the spray channel and the recovery tank or the recovery channel and the recovery tank.

15. The cleaning apparatus of claim 14, wherein, The liquid outlet pipeline includes a first pipeline and a second pipeline. The first pipeline connects the liquid spraying channel and the recovery chamber, and the second pipeline connects the recovery channel and the recovery chamber.

16. The cleaning apparatus of claim 15, wherein, The liquid outlet pipeline also includes a third pipeline and a first tee connector. The first tee connector has a first connecting end, a second connecting end and a third connecting end. The first pipeline can connect the first connecting end to the liquid spraying channel. The second pipeline connects the second connecting end to the recovery channel. The third pipeline connects the third connecting end to the recovery chamber.

17. The cleaning apparatus of claim 14, wherein, The cleaning equipment also includes a first main pipeline and a second main pipeline. Multiple cleaning mechanisms are provided, and multiple liquid inlet pipelines are provided and connected in parallel. The liquid storage tank is connected to multiple liquid inlet pipelines through the first main pipeline. The multiple liquid inlet pipelines are provided in one-to-one correspondence with the cleaning components of the multiple cleaning mechanisms. The liquid outlet pipeline is provided in multiple and connected in parallel. The recovery chamber is connected to the multiple liquid outlet pipelines through the second main pipeline. The multiple liquid outlet pipelines are provided one-to-one with the cleaning components of the multiple cleaning mechanisms.

18. The cleaning apparatus of claim 11, wherein, The cleaning equipment also includes a pressure regulating valve, a reversing valve, a solenoid valve, and a vacuum generator. The inlet of the pressure regulating valve is connected to a first air source device, the outlet of the pressure regulating valve is connected to the inlet of the reversing valve, and the outlet of the reversing valve is connected to the liquid storage tank. The vacuum generator is connected between the recovery chamber and the solenoid valve. The solenoid valve is used to control the connection and disconnection between the second gas source device and the vacuum generator. The vacuum generator is used to create a negative pressure inside the recovery chamber.

19. A PCB processing apparatus characterized by comprising: The device includes a spindle and the cleaning equipment according to any one of claims 11-18, wherein the cleaning mechanism is located below the spindle, a chuck is mounted on the spindle, and the end of the spray channel away from the liquid storage tank is capable of spraying cleaning liquid onto the chuck.

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