Washing device and vacuum developing, etching and film removing production line
By setting up a barrier, overflow channel and multi-stage overflow port in the water washing device, the problems of insufficient water storage and water cleanliness are solved. The design of warm water and room temperature water washing units is improved, and the cleaning effect is achieved and more efficient water resource utilization is achieved.
Patent Information
- Application Number
- CN202421494506.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The existing water washing device has defects in the design of the water tank and the cleaning water cleanliness, including insufficient water storage, the entry of debris affects the cleanliness, and the inability to adjust the cleaning water temperature.
A water washing device is designed to increase the amount of water storage by setting a barrier and overflow channel, and to maintain the cleanliness of water by setting a barrier and a multi-stage overflow port. At the same time, a warm water washing unit and a normal temperature washing unit are introduced, and the water temperature is adjusted using a heater and cooling coil to improve the cleaning effect.
It has achieved increasing the water storage volume of the water storage tank and maintaining the cleanliness of the water, improving the cleaning effect and water use efficiency.
Smart Images
Figure CN222814660U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of printed circuit board production equipment, in particular to a water washing device and a vacuum developing, etching and film removing production line. Background Art
[0002] In the process of making printed circuit boards, cleaning is essential, and the cleaning process is completed on a water washing device. The water washing device generally includes a conveying roller mechanism, a water storage tank, a liquid conveying mechanism and a spraying mechanism. The conveying roller mechanism is used to convey the printed circuit board. The spraying mechanism is arranged on the upper and lower sides of the conveying roller mechanism to spray the upper and lower sides of the printed circuit board with cleaning water. The liquid conveying mechanism is used to convey cleaning water to the spraying mechanism. Existing water washing devices generally have the following defects:
[0003] (1) There are usually multiple water storage tanks arranged side by side, with an overflow port between two adjacent water storage tanks. The water in the primary water storage tank flows to the secondary water storage tank through the overflow port. The water level in the secondary water storage tank is basically flush with the overflow port, resulting in a small amount of water stored in the secondary water storage tank;
[0004] (2) There is no baffle at the overflow port, and the debris in the primary water storage tank will enter the secondary water storage tank through the overflow port, which is likely to affect the cleanliness of the water in the secondary water storage tank;
[0005] (3) There is no temperature control mechanism in the water storage tank, and the temperature of the cleaning water cannot be adjusted, resulting in poor cleaning effect. Utility Model Content
[0006] The first object of the utility model is to provide a water washing device which can increase the water storage capacity of a water storage tank and maintain its cleanliness.
[0007] The second object of the utility model is to provide a vacuum developing and etching film removal production line comprising the water washing device.
[0008] To achieve the first purpose of the utility model, the utility model provides a water washing device, including a frame, a conveying roller mechanism, a spray mechanism, a liquid conveying mechanism and at least two water storage tanks, the conveying roller mechanism is arranged in the middle of the frame, the spray mechanism is arranged on the upper side and / or the lower side of the conveying roller mechanism, the water storage tank is arranged at the lower part of the frame, the liquid conveying mechanism is connected between the spray mechanism and the water storage tank, the water suction end of the liquid conveying mechanism is arranged at the lower part of the water storage tank, an overflow port and a baffle are arranged between two adjacent water storage tanks, the baffle is arranged on the overflow port, an overflow channel is arranged in the baffle, the overflow channel extends to the lower part of the water storage tank, the inlet end of the overflow channel is connected to the overflow port, the outlet end of the overflow channel is adjacent to the water suction end, and the two adjacent water storage tanks are connected through the overflow port and the overflow channel.
[0009] It can be seen from the above scheme that by setting up a baffle, the water level line in the water tank can be higher than the height of the overflow port, which is beneficial to increasing the water storage capacity of the water tank; by setting up an overflow channel, the water overflowing from one water tank is discharged along the overflow channel to the lower part of the other water tank, so that the overflow water is closer to the water suction end of the liquid conveying mechanism, which is convenient for the liquid conveying mechanism to suck the overflow water and supply it to the spraying mechanism, which is beneficial to improve the cleanliness of the water used for cleaning the spraying mechanism.
[0010] A further solution is that a closed end is provided above the inlet end of the overflow channel, and in the vertical direction, the distance from the closed end to the inlet end is less than or equal to the distance from the outlet end to the inlet end.
[0011] It can be seen from the above scheme that by providing a closed end, the water in the water storage tank can be higher than the overflow channel, which is beneficial to further increase the water storage capacity of the water storage tank.
[0012] A further solution is that a baffle is provided on the side of the overflow port facing away from the baffle cover, the baffle having a connecting end and a free end, the connecting end is connected above the overflow port, and a connecting cavity is formed between the free end and the overflow port.
[0013] It can be seen from the above scheme that by setting a baffle to block the floating debris in the water storage tank, it is helpful to reduce the debris from entering the overflow channel through the overflow port.
[0014] A further solution is that the number of water storage tanks is set to multiple, and the multiple water storage tanks are arranged along the conveying direction of the conveying roller mechanism, at least two overflow ports are set between the multiple water storage tanks, and the heights of all overflow ports gradually decrease in the opposite direction of the conveying direction of the conveying roller mechanism.
[0015] It can be seen from the above scheme that by setting the height of all overflow ports to gradually decrease, it is conducive to forming a multi-level overflow, so that the water in multiple water storage tanks can be used multiple times, thereby saving water.
[0016] A further solution is that the water washing device includes a warm water washing unit and a normal temperature water washing unit arranged along the conveying direction of the conveying roller mechanism, the warm water washing unit includes a warm water storage tank, a heater and a cooling coil are provided in the warm water storage tank, and the normal temperature water washing unit includes a normal temperature storage tank.
[0017] It can be seen from the above scheme that by setting up a warm water washing unit, using a heater and a cooling coil to adjust the water temperature in the warm water storage tank, and using warm water to wash the printed circuit board, it is beneficial to improve the cleaning effect; by setting up a normal temperature water washing unit after the warm water washing unit, it not only plays a secondary cleaning role to improve the cleaning effect, but also plays a cooling role to prevent the temperature of the printed circuit board from rising.
[0018] A further solution is that two water level detectors are arranged in the warm water storage tank, and respective detection ends of the two water level detectors are arranged at different heights.
[0019] It can be seen from the above scheme that by setting two water level detectors, one is used to monitor the warning water level to remind the staff to add cleaning water, and the other is used to monitor the minimum water level to avoid dry burning of the heater.
[0020] A further solution is that the water washing device also includes a visual inspection workbench, which is arranged on the frame and at the discharge end of the conveying roller mechanism.
[0021] It can be seen from the above scheme that by setting up a visual inspection workbench, it is convenient for workers to check the water washing effect of the printed circuit board.
[0022] In order to achieve the first purpose of the utility model, the utility model provides a vacuum developing and etching film removal production line, including the above-mentioned water washing device.
[0023] A further solution is that it also includes a loading device, a developing device, an etching device, a film removal device, an air drying device and a unloading device which are arranged in sequence along the processing direction, and a water washing device is arranged on the rear side of each of the developing device, the etching device and the film removal device. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a front view of an embodiment of the water washing device of the utility model.
[0025] Figure 2 It is a side view of an embodiment of the water washing device of the utility model.
[0026] Figure 3 It is a top view of an embodiment of the water washing device of the utility model.
[0027] Figure 4 It is a structural diagram of a frame in an embodiment of a water washing device of the utility model.
[0028] Figure 5 yes Figure 4 Enlarged view of point A in the middle.
[0029] Figure 6 It is a schematic diagram of an embodiment of a vacuum developing, etching and film removing production line of a water washing device of the utility model.
[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION
[0031] Water washing device embodiment:
[0032] See also Figures 1 to 5The present embodiment provides a water washing device, which includes a plurality of warm water washing units 1, a plurality of normal temperature water washing units 2 and a visual inspection workbench 3. The number of warm water washing units 1 and normal temperature water washing units 2 can be set according to actual needs. The present embodiment takes three warm water washing units 1 and four normal temperature water washing units 2 as an example. The three warm water washing units 1 and the four normal temperature water washing units 2 and the visual inspection workbench 3 are arranged in sequence along the conveying direction of the printed circuit board. The visual inspection workbench 3 is arranged at the discharge end of the conveying roller mechanism 5, so that the staff can check the condition of the printed circuit board conveniently.
[0033] The washing device of this embodiment includes a frame 4, a conveying roller mechanism 5, seven spray mechanisms 6, seven liquid conveying mechanisms 7 and seven water storage tanks 8. The conveying roller mechanism 5 is arranged in the middle of the frame 4 and extends in the longitudinal direction. The conveying roller mechanism 5 is used to convey the printed circuit board in the longitudinal direction; the seven spray mechanisms 6 are arranged in an array along the conveying direction of the conveying roller mechanism 5, and the seven spray mechanisms 6 include three warm water spray mechanisms and four normal temperature spray mechanisms. Both the warm water spray mechanism and the normal temperature spray mechanism include an upper spray unit 61 and a lower spray unit 62, which are respectively arranged on the upper and lower sides of the conveying roller mechanism 5, and are used to rinse the upper and lower sides of the printed circuit board; seven water storage tanks 8 are arranged in the lower part of the frame 4 along the longitudinal direction, among which three water storage tanks 8 are warm water storage tanks, and the three warm water storage tanks are arranged in a one-to-one correspondence with the three warm water spray mechanisms, and four water storage tanks 8 are normal temperature water storage tanks 21, and the four normal temperature water storage tanks 21 are arranged in a one-to-one correspondence with the four normal temperature spray mechanisms; the liquid conveying mechanism 7 is connected between the spray mechanism 6 and the corresponding water storage tank 8, and is used to supply the water in the water storage tank 8 to the corresponding spray mechanism 6, and the water absorption end 711 of the liquid conveying mechanism 7 is arranged at the lower part of the water storage tank 8.
[0034] See also Figure 4 and Figure 5 , and combined with Figure 1 The three warm water washing units 1 include three warm water storage tanks, and an overflow port and a shield 16 are provided between two adjacent warm water storage tanks. In the opposite direction of the conveying direction of the conveying roller mechanism 5, the height of the two overflow ports gradually decreases. Specifically:
[0035] The three warm water storage tanks 8 include a first warm water storage tank 11, a second warm water storage tank 12 and a third warm water storage tank 13 in sequence along the conveying direction of the conveying roller mechanism 5. A first warm water overflow port 14 is arranged between the first warm water storage tank 11 and the second warm water storage tank 12, and a second warm water overflow port 15 is arranged between the second warm water storage tank 12 and the third warm water storage tank 13. The height of the second warm water overflow port 15 is higher than the height of the first warm water overflow port 14, so that the warm water overflow water overflows from the third warm water storage tank 13 to the second warm water storage tank 12, and then overflows from the second warm water storage tank 12 to the first warm water storage tank 11.
[0036] The seven spray mechanisms 6 include a first warm water spray mechanism, a second warm water spray mechanism, a third warm water spray mechanism and four normal temperature water spray mechanisms. Along the conveying direction of the conveying roller mechanism 5, the printed circuit board passes through the first warm water spray mechanism, the second warm water spray mechanism and the third warm water spray mechanism in sequence. The spray water of the first warm water spray mechanism, the second warm water spray mechanism and the third warm water spray mechanism rinse the printed circuit board and then converge into the first warm water storage tank 11, the second warm water storage tank 12 and the third warm water storage tank 13 respectively. Due to the order of rinsing the printed circuit board, the cleanliness of the water in the third warm water storage tank 13 is higher than the cleanliness of the water in the second warm water storage tank 12, and the cleanliness of the water in the second warm water storage tank 12 is higher than the cleanliness of the water in the first warm water storage tank 11. The overflow direction of this embodiment is opposite to the conveying direction of the printed circuit board, so that the cleaner water overflows into the water storage tank with poorer water quality, which not only realizes the recycling of water, but also improves the cleanliness of the cleaning water in the water storage tank.
[0037] The two shields 16 are respectively arranged on the first warm water overflow port 14 and the second warm water overflow port 15. In this embodiment, the shield 16 is arranged on the second warm water overflow port 15 as an example. An overflow channel 161 is arranged in the shield 16. The inlet end of the overflow channel 161 is connected to the second warm water overflow port 15, and the outlet end of the overflow channel 161 extends to the lower part of the second warm water storage tank 12. The second warm water storage tank 12 and the third warm water storage tank 13 are connected through the second warm water overflow port 15 and the overflow channel 161. After the overflow water passes through the second warm water overflow port 15, it flows along the overflow channel 161 to the lower part of the second warm water storage tank 12.
[0038] Since the water suction end 711 of the corresponding liquid conveying mechanism 7 is arranged at the lower part of the second warm water storage tank 12, the outlet end of the overflow channel 161 is adjacent to the water suction end 711, and the overflowing water is close to the water suction end 711, so that the liquid conveying mechanism 7 can at least partially absorb the overflow water and supply it to the spraying mechanism 6, which is beneficial to maintaining the cleanliness of the spray water of the second warm water storage tank 12 and its corresponding spraying mechanism 6.
[0039] The overflow channel 161 is provided with a closed end above its inlet end, and in the vertical direction, the distance from the closed end to the inlet end is less than or equal to the distance from the outlet end to the inlet end. By providing the closed end, the water level in the second warm water storage tank 12 where the shield 16 is located can be higher than the second warm water overflow port 15, or even higher than the closed end of the overflow channel 161, which is conducive to increasing the water storage capacity in the second warm water storage tank 12.
[0040] In order to achieve overflow, along the overflow direction of water, the water level in the third warm water storage tank 13 must be higher than the water level in the second warm water storage tank 12 , and the water level in the second warm water storage tank 12 must be higher than the water level in the first warm water storage tank 11 .
[0041] In order to limit the entry of debris into the second warm water storage tank 12 through the second warm water overflow port 15, the second warm water overflow port 15 of this embodiment is provided with a baffle 17 tilted downward on the side facing away from the baffle 16. The baffle 17 has a connecting end and a free end, the connecting end is connected to the top of the second warm water overflow port 15, and the free end extends tilted downward. On the vertical projection plane, the projection of the free end falls into the second overflow port 15, so that the free end can extend below the water surface of the third warm water storage tank 13, and a connecting cavity is formed between the free end and the second warm water overflow port 15, and the connecting cavity is respectively connected to the third warm water storage tank 13 and the second warm water overflow port 15. The baffle 17 can be a plate-like structure or a filter structure.
[0042] Combination Figure 1 and Figure 4 The normal temperature water washing unit 1 includes a normal temperature water storage tank 21, and an overflow port 22, a baffle 23 and a baffle 24 are provided between two adjacent normal temperature water storage tanks 21. The overflow port 22, the baffle 23 and the baffle 24 of the normal temperature water storage tank 21 have the same structure as the overflow port, the baffle 16 and the baffle 17 of the warm water storage tank, and are not repeated here.
[0043] The difference between the warm water storage tank and the normal temperature water storage tank 21 is that a heater and a cooling coil 18 are arranged in the warm water storage tank. The heater and the cooling coil 18 are both arranged in the lower part of the warm water storage tank, and are used to heat and cool the water in the warm water storage tank respectively to adjust the water temperature.
[0044] A water level detector 25 is provided in the normal temperature water storage tank 21. When the water level therein is lower than the water level detector 25, an alarm is sounded to remind the staff to add water in time.
[0045] Two water level detectors 19 are arranged in each warm water storage tank, and the respective detection ends of the two water level detectors 19 are arranged at different heights. The higher water level detector 19 is used to detect the warning water level. When the water level in it is lower than the warning water level, an alarm is sounded to remind the staff to add water in time; the lower water level detector 19 is used to detect the minimum water level. When the water level in it is lower than the minimum water level, an alarm is sounded and the heater is shut down through the controller to avoid dry burning.
[0046] Combination Figure 1 and Figure 2The liquid delivery mechanism 7 includes a spray pump 71, a spray main pipe 72, a filter device 73 and at least two spray branch pipes 74. The spray pump 71 is arranged at the lower part of the frame 4, and the water suction end 711 of the spray pump 71 is arranged in the corresponding water storage tank 8. The water suction end 711 is provided with a filter assembly to avoid sucking in debris. The output end of the spray pump 71 is connected to the first end of the spray main pipe 72, and the filter device 73 is arranged at the upper part of the frame 4 and connected to the spray main pipe 72. The second end of the spray main pipe 72 is respectively connected to the two spray branch pipes 74. The two spray branch pipes 74 are respectively connected to the upper spray unit 61 and the lower spray unit 62.
[0047] The upper spray unit 61 includes an upper spray pipe 611 and a plurality of upper nozzles 612; the lower spray unit 62 includes a lower spray pipe 621 and a plurality of lower nozzles 622. The upper spray pipe 611 and the lower spray pipe 621 are respectively arranged on the upper and lower sides of the conveying roller mechanism 5, and in the up-down direction, the upper spray pipe 611 and the lower spray pipe 621 are staggered. The plurality of upper nozzles 612 are arranged along the extension direction of the upper spray pipe 611, and the plurality of lower nozzles 622 are arranged along the extension direction of the lower spray pipe 621. In the up-down direction, the upper nozzle 612 and the lower nozzle 622 are staggered, or the upper nozzle 612 and the lower nozzle 622 are arranged correspondingly, and the former is preferred in this embodiment.
[0048] The bottom of each water storage tank 8 is provided with an inclined bottom wall 81 and a drain pipe 82 . The inclined bottom wall 81 extends downwardly in the direction of the drain pipe 82 , so that the water in the water storage tank 8 can be completely drained when cleaning the water storage tank 8 .
[0049] Vacuum development and etching film removal production line example:
[0050] See also Figure 6 This embodiment provides a vacuum developing and etching film removal production line, including the water washing device of the above embodiment.
[0051] The vacuum developing and etching film stripping production line of this embodiment further includes a loading device 10, a developing device 20, an etching device, a film stripping device 50, an air drying device 60 and a unloading device 70 arranged in sequence along the processing direction, and a water washing device 1a / 1b / 1c is arranged at the rear side of each of the developing device 20, the etching device and the film stripping device 50. Whether each water washing device 1a / 1b / 1c has a warm water washing unit 1 needs to be set according to actual needs.
[0052] The etching device includes a vacuum etching device 40 and a compensation etching device 30. The compensation etching device 30 can be arranged at the front end or the rear end of the vacuum etching device 40. In this embodiment, the compensation etching device 30 is arranged at the front end of the vacuum etching device 40 as an example. A water washing device 1b is arranged at the rear end of the vacuum etching device 40. The printed circuit board first passes through the compensation etching device 30, then passes through the vacuum etching device 40, and then passes through the water washing device 1b.
[0053] Finally, it should be emphasized that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A washing device, comprising a frame, a conveying roller mechanism, a spray mechanism, a liquid conveying mechanism and at least two water storage tanks, wherein the conveying roller mechanism is arranged in the middle of the frame, the spray mechanism is arranged on the upper side and / or the lower side of the conveying roller mechanism, the water storage tank is arranged at the lower part of the frame, the liquid conveying mechanism is connected between the spray mechanism and the water storage tank, and the water suction end of the liquid conveying mechanism is arranged at the lower part of the water storage tank, characterized in that: An overflow port and a baffle are provided between two adjacent water storage tanks, the baffle is provided on the overflow port, an overflow channel is provided in the baffle, the overflow channel extends to the lower part of the water storage tank, the inlet end of the overflow channel is connected with the overflow port, the outlet end of the overflow channel is adjacent to the water suction end, and the two adjacent water storage tanks are connected through the overflow port and the overflow channel.
2. The water washing device according to claim 1, characterized in that: The overflow channel is provided with a closed end above its inlet end, and in the vertical direction, the distance from the closed end to the inlet end is less than or equal to the distance from the outlet end to the inlet end.
3. The water washing device according to claim 1, characterized in that: The overflow port is provided with a baffle on a side thereof facing away from the baffle cover. The baffle has a connecting end and a free end. The connecting end is connected above the overflow port, and a connecting cavity is formed between the free end and the overflow port.
4. The water washing device according to any one of claims 1 to 3, characterized in that: The number of the water storage tanks is set to be multiple, and the multiple water storage tanks are arranged along the conveying direction of the conveying roller mechanism. At least two overflow ports are arranged between the multiple water storage tanks, and the heights of all the overflow ports gradually decrease in the opposite direction of the conveying direction of the conveying roller mechanism.
5. The water washing device according to any one of claims 1 to 3, characterized in that: The water washing device includes a warm water washing unit and a normal temperature water washing unit arranged along the conveying direction of the conveying roller mechanism. The warm water washing unit includes a warm water storage tank, in which a heater and a cooling coil are arranged. The normal temperature water washing unit includes a normal temperature water storage tank.
6. The water washing device according to claim 5, characterized in that: Two water level detectors are arranged in the warm water storage tank, and respective detection ends of the two water level detectors are arranged at different heights.
7. The water washing device according to any one of claims 1 to 3, characterized in that: The water washing device also includes a visual inspection workbench, which is arranged on the frame and at the discharge end of the conveying roller mechanism.
8. Vacuum development and etching film removal production line, characterized by: The water washing device comprises the water washing device according to any one of claims 1 to 7.
9. The vacuum developing and etching film removal production line according to claim 8, characterized in that: It also includes a loading device, a developing device, an etching device, a film removal device, an air drying device and a unloading device which are arranged in sequence along the processing direction, and the water washing device is arranged on the rear side of each of the developing device, the etching device and the film removal device.