Filtering device for photosensitive solder resist ink
By introducing a constant temperature holding mechanism and heater into the filter device of photosensitive solder resist ink, the filtration speed slowing down and filter clogging caused by too low ink temperature is solved, uniform heating and fluidity of the ink are achieved, and filtration is improved Efficiency and convenience.
Patent Information
- Application Number
- CN202421812516.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-07-30
AI Technical Summary
When the existing filter devices filter the photosensitive solder resist ink, they lack heating function, resulting in an increase in viscosity when the ink temperature is too low, the filtration speed is affected or the filter mesh is clogged.
A filter device including a constant temperature holding mechanism is designed. The device heats water through a heater and causes the heated water to flow along the circulating copper tube, indirectly heats the photosensitive solder resist ink, reduces its viscosity, and monitors the ink through a temperature sensor. Temperature, avoid excessive heat.
By heating the photosensitive solder resist ink, it reduces its viscosity, enhances fluidity, avoids filter clogging, improves filtration efficiency, and ensures uniform heating of the ink during the heating process, avoiding chemical additives reacting in advance.
Smart Images
Figure CN222517970U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of photosensitive solder resist ink filtering, in particular to a photosensitive solder resist ink filtering device. Background Art
[0002] Photosensitive solder mask ink is a special ink widely used in the manufacture of printed circuit boards (PCBs). It has the following significant features: Photosensitivity: It can react sensitively to ultraviolet rays or other light of a specific wavelength, thereby achieving precise pattern exposure and development. Good solder mask performance: It effectively prevents solder from adhering to areas on the circuit board that do not require soldering, ensuring the accuracy and stability of the circuit. Corrosion resistance: It can resist the corrosion of chemical substances and protect the reliability of the circuit board under various environmental conditions. Insulation: It provides excellent electrical insulation performance to prevent faults such as short circuits between circuits.
[0003] For example, the Chinese patent with announcement number CN216778068U discloses a filtering device for photosensitive solder resist ink, which relates to the technical field of filtering devices. The utility model includes a filter box and a distribution box. The bottom end of the filter box is threadedly connected with a bidirectional threaded structure, and the bottom end of the bidirectional threaded structure is threadedly connected with a distribution box. The top of the filter box is provided with a mounting port, and the inner side surface of the mounting port is fixedly connected with a load-bearing ring. A feed hopper is provided in the mounting port, and a filter bag is fixedly connected to the bottom end of the feed hopper. A diverter trough is provided inside the filter box, and the two sides of the diverter trough are fixedly connected with a fixing rod, and one end of the fixing rod is fixedly connected to the inner side surface of the filter box. The utility model is a filtering device for photosensitive solder resist ink. The ink is dispersed and evenly contacted with the filter screen plate through the diverter trough and the spray head, thereby improving the use efficiency of the filter screen plate and reducing the probability of clogging of the filter screen plate. At the same time, the distribution box can be used to evenly distribute the filtered ink for easy recycling.
[0004] Although the existing filter has a good filtering effect on the photosensitive solder resist ink, it is necessary to pay attention to the change of the ink temperature when filtering the photosensitive solder resist ink. When the ink temperature is too low, the viscosity will increase, resulting in a serious impact on the filtering speed and even possible clogging of the filter. The existing filtering device does not have a heating function when filtering the photosensitive solder resist ink, which has certain inconveniences in use. Utility Model Content
[0005] The utility model provides a filtering device for photosensitive solder resist ink to solve the problems raised in the above background technology.
[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0007] A filtering device for photosensitive solder resist ink, comprising a constant temperature maintaining mechanism, a filtering bin mechanism fixedly connected to the top of the constant temperature maintaining mechanism, a stirring mechanism provided on the top of the filtering bin mechanism, a supporting leg fixedly connected to the bottom of the constant temperature maintaining mechanism, the constant temperature maintaining mechanism comprising an installation bin, a water storage cavity provided inside the installation bin, a drain outlet provided at the bottom of the inner cavity of the water storage cavity, a water inlet provided on one side of the inner cavity of the water storage cavity, a heater for heating water fixedly connected to the top of the inner cavity of the water storage cavity, a circulating pump fixedly connected to the inner wall of the installation bin, the water inlet of the circulating pump being connected to the inside of the water storage cavity through a pumping pipe, the water outlet of the circulating pump being connected to a circulating copper tube through a water delivery pipe, and one end of the circulating copper tube being connected to the inside of the water storage cavity.
[0008] A further improvement of the technical solution of the utility model is that the filter bin mechanism includes a bin body, the interior of the bin body is fixedly connected to the surface of the circulating copper tube, the bottom of the bin body is fixedly connected to the top of the installation bin, and the inner wall of the bin body is divided into a filter chamber and an ink storage chamber by a filter plate.
[0009] A further improvement of the technical solution of the utility model is that: a debris discharge port is provided on one side of the filter cavity at the upper end of the bin body, and an ink outlet is provided on one side of the ink storage cavity at the lower end of the bin body.
[0010] A further improvement of the technical solution of the utility model is that the stirring mechanism includes a bin cover, which is arranged on the top of the bin body, and the top of the bin cover is provided with an ink inlet for the photosensitive solder resist ink to enter, and the top of the bin cover is fixedly connected to a motor.
[0011] A further improvement of the technical solution of the utility model is that a stirring blade is fixedly connected to the surface of the motor shaft, a scraper is fixedly connected to one side of the stirring blade, and one side of the scraper overlaps the inner wall of the filter cavity at the upper end of the bin body.
[0012] A further improvement of the technical solution of the utility model is that an anti-blocking brush is fixedly connected to the lower end of the motor shaft, the bottom of the anti-blocking brush overlaps the top of the filter plate, and a temperature sensor for monitoring the temperature of the photosensitive solder resist ink is provided on the top of the inner cavity of the bin cover, and the temperature sensor is connected to the heater signal.
[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:
[0014] The utility model provides a filtering device for photosensitive solder resist ink. By setting a constant temperature maintaining mechanism, when filtering the photosensitive solder resist ink, water is heated by a heater, and the heated water is made to flow along a circulating copper tube, so that the photosensitive solder resist ink is indirectly heated, the viscosity of the photosensitive solder resist ink is reduced, and the fluidity of the photosensitive solder resist ink is enhanced. In the heating process, the temperature of the ink is monitored by a temperature sensor, so as to avoid premature reaction of internal chemical additives due to excessively high ink temperature, so that the ink is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the bin cover in the hoisting state of the utility model;
[0017] Figure 3 This is a schematic diagram of the stirring mechanism structure of the utility model;
[0018] Figure 4 It is a cross-sectional structural schematic diagram of the utility model.
[0019] In the figure: 1. Constant temperature maintaining mechanism; 11. Installation bin; 12. Water storage chamber; 13. Drain outlet; 14. Water inlet; 15. Heater; 16. Circulation pump; 17. Water delivery pipe; 18. Circulation copper pipe; 19. Pumping pipe; 2. Filter bin mechanism; 21. Bin body; 22. Filter plate; 23. Drain outlet; 24. Ink outlet; 3. Stirring mechanism; 31. Bin cover; 32. Ink inlet; 33. Motor; 34. Stirring blade; 35. Scraper; 36. Anti-blocking brush; 37. Temperature sensor; 4. Support leg. DETAILED DESCRIPTION
[0020] The present invention is further described in detail below in conjunction with the embodiments:
[0021] Example 1
[0022] like Figure 1-4As shown, the utility model provides a filtering device for photosensitive solder resist ink, including a constant temperature maintaining mechanism 1, a filtering bin mechanism 2 is fixedly connected to the top of the constant temperature maintaining mechanism 1, a stirring mechanism 3 is arranged on the top of the filtering bin mechanism 2, a supporting leg 4 is fixedly connected to the bottom of the constant temperature maintaining mechanism 1, the constant temperature maintaining mechanism 1 includes a mounting bin 11, a water storage chamber 12 is arranged inside the mounting bin 11, a drain port 13 is arranged at the bottom of the inner cavity of the water storage chamber 12, a water inlet 14 is arranged on one side of the inner cavity of the water storage chamber 12, a heater 15 for heating water is fixedly connected to the top of the inner cavity of the water storage chamber 12, a circulating pump 16 is fixedly connected to the inner wall of the mounting bin 11, a water inlet of the circulating pump 16 is communicated with the inside of the water storage chamber 12 through a water pumping pipe 19, a water outlet of the circulating pump 16 is communicated with a circulating copper pipe 18 through a water delivery pipe 17, and one end of the circulating copper pipe 18 is communicated with the inside of the water storage chamber 12.
[0023] In this embodiment, the photosensitive solder resist ink is injected into the filter cavity through the ink inlet 32, and the temperature of the ink is monitored by the temperature sensor 37. When the temperature is too low, the heater 15 is started to heat the water in the water storage cavity 12, and under the action of the circulating pump 16, the heated water enters the water pipe 17 along the suction pipe 19, and then enters the circulating copper pipe 18 along the water pipe 17. The good thermal conductivity of the circulating copper pipe 18 indirectly heats the ink, reduces the viscosity of the ink, and makes the ink more fluid.
[0024] Example 2
[0025] like Figure 1-4 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the filter bin mechanism 2 includes a bin body 21, the interior of the bin body 21 is fixedly connected to the surface of the circulating copper tube 18, the bottom of the bin body 21 is fixedly connected to the top of the installation bin 11, and the inner wall of the bin body 21 is divided into a filter chamber and an ink storage chamber by a filter plate 22, a debris discharge port 23 is provided on one side of the filter chamber at the upper end of the bin body 21, and an ink outlet 24 is provided on one side of the ink storage chamber at the lower end of the bin body 21.
[0026] In this embodiment, after the ink is filtered by the filter plate 22, it enters the ink storage bin and is discharged along the ink outlet 24. After the filtration is completed, the impurities are discharged by opening the impurity discharge port 23. During the impurity discharge process, the motor 33 is continuously started so that the scraper 35 scrapes the inner wall of the filter bin. At the same time, the anti-blocking brush 36 rotates to continuously push the impurities into the impurity discharge port 23 for discharge, so that the impurity discharge is more thorough. Then, the drain port 13 is opened to drain the water in the water storage chamber 12.
[0027] Example 3
[0028] like Figure 1-4As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the stirring mechanism 3 includes a bin cover 31, the bin cover 31 is arranged on the top of the bin body 21, and an ink inlet 32 for photosensitive solder resist ink to enter is opened on the top of the bin cover 31, a motor 33 is fixedly connected to the top of the bin cover 31, a stirring blade 34 is fixedly connected to the surface of the rotating shaft of the motor 33, a scraper 35 is fixedly connected to one side of the stirring blade 34, one side of the scraper 35 overlaps the inner wall of the filter cavity at the upper end of the bin body 21, an anti-blocking brush 36 is fixedly connected to the lower end of the rotating shaft of the motor 33, the bottom of the anti-blocking brush 36 overlaps the top of the filter plate 22, and a temperature sensor 37 for monitoring the temperature of the photosensitive solder resist ink is arranged on the top of the inner cavity of the bin cover 31, and the temperature sensor 37 is connected to the signal of the heater 15.
[0029] In this embodiment, during the heating process, the motor 33 drives the stirring blade 34 to rotate to stir the ink, so that the ink is heated more evenly and the agglomerates and precipitates in the ink are evenly dispersed to maintain the consistency of the ink. The anti-blocking brush 36 brushes the filter plate 22 to prevent the filter plate 22 from being blocked during filtration.
[0030] The working principle of the filtering device of the photosensitive solder resist ink is described in detail below.
[0031] like Figure 1-4 As shown, during use, the photosensitive solder resist ink is injected into the filter cavity through the ink inlet 32, and the temperature of the ink is monitored by the temperature sensor 37. When the temperature is too low, the heater 15 is started to heat the water in the water storage cavity 12, and under the action of the circulating pump 16, the heated water enters the water delivery pipe 17 along the water suction pipe 19, and enters the circulating copper pipe 18 along the water delivery pipe 17. The good thermal conductivity of the circulating copper pipe 18 indirectly heats the ink, reduces the viscosity of the ink, and makes the ink more fluid. At the same time, during the heating process, the stirring blade 34 is driven by the motor 33 to rotate to stir the ink, so that the ink is heated more At the same time, the agglomerates and precipitations in the ink are evenly dispersed to maintain the consistency of the ink, and the anti-blocking brush 36 brushes the filter plate 22 to prevent the filter plate 22 from being blocked during filtration. After being filtered by the filter plate 22, the ink enters the ink storage bin and is discharged along the ink outlet 24. After the filtration is completed, the impurities are discharged by opening the impurity discharge port 23. During the impurity discharge process, the motor 33 is continuously started to allow the scraper 35 to scrape the inner wall of the filter bin while the anti-blocking brush 36 rotates to continuously push the impurities to the impurity discharge port 23 for discharge, so that the impurities are discharged more thoroughly. Subsequently, the drain port 13 is opened to drain the water in the water storage chamber 12.
[0032] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A filtering device for photosensitive solder resist ink, comprising a constant temperature maintaining mechanism (1), characterized in that: The top of the constant temperature maintaining mechanism (1) is fixedly connected to a filter chamber mechanism (2), the top of the filter chamber mechanism (2) is provided with a stirring mechanism (3), the bottom of the constant temperature maintaining mechanism (1) is fixedly connected to a supporting leg (4), the constant temperature maintaining mechanism (1) comprises a mounting chamber (11), a water storage chamber (12) is provided inside the mounting chamber (11), a drainage port (13) is provided at the bottom of the inner cavity of the water storage chamber (12), and a water discharge port (13) is provided on one side of the inner cavity of the water storage chamber (12). A water inlet (14) is provided, a heater (15) for heating water is fixedly connected to the top of the inner cavity of the water storage cavity (12), a circulating pump (16) is fixedly connected to the inner wall of the installation bin (11), the water inlet of the circulating pump (16) is connected to the interior of the water storage cavity (12) through a water pumping pipe (19), the water outlet of the circulating pump (16) is connected to a circulating copper pipe (18) through a water delivery pipe (17), and one end of the circulating copper pipe (18) is connected to the interior of the water storage cavity (12).
2. The filtering device for photosensitive solder resist ink according to claim 1, characterized in that: The filter bin mechanism (2) comprises a bin body (21), the interior of the bin body (21) is fixedly connected to the surface of the circulating copper tube (18), the bottom of the bin body (21) is fixedly connected to the top of the installation bin (11), and the inner wall of the bin body (21) is divided into a filter chamber and an ink storage chamber by a filter plate (22).
3. The filtering device for photosensitive solder resist ink according to claim 2, characterized in that: A debris discharge port (23) is provided on one side of the filter cavity at the upper end of the bin body (21), and an ink outlet (24) is provided on one side of the ink storage cavity at the lower end of the bin body (21).
4. The filtering device for photosensitive solder resist ink according to claim 1, characterized in that: The stirring mechanism (3) comprises a bin cover (31), the bin cover (31) is arranged on the top of the bin body (21), an ink inlet (32) for photosensitive solder resist ink to enter is opened on the top of the bin cover (31), and a motor (33) is fixedly connected to the top of the bin cover (31).
5. The filtering device for photosensitive solder resist ink according to claim 4, characterized in that: A stirring blade (34) is fixedly connected to the surface of the rotating shaft of the motor (33), a scraper (35) is fixedly connected to one side of the stirring blade (34), and one side of the scraper (35) overlaps the inner wall of the filter cavity at the upper end of the bin body (21).
6. The filtering device for photosensitive solder resist ink according to claim 5, characterized in that: The lower end of the motor (33) shaft is fixedly connected to an anti-blocking brush (36), the bottom of the anti-blocking brush (36) overlaps the top of the filter plate (22), and the top of the inner cavity of the bin cover (31) is provided with a temperature sensor (37) for monitoring the temperature of the photosensitive solder resist ink, and the temperature sensor (37) is connected to the heater (15) signal.