Coating liquid circulating filtering device

Abstract

The utility model relates to the technical field of coating liquid treatment, in particular to a coating liquid circulating filtering device which comprises a first barrel body and further comprises a second barrel body, the second barrel body is fixedly connected to the bottom of the first barrel body, a partition plate is fixedly connected between the first barrel body and the second barrel body, a position sensor is fixedly connected to the top of the partition plate, and the position sensor is fixedly connected to the bottom of the second barrel body. The bottom of the second barrel body is fixedly connected with a bottom frame; the filtering unit is arranged in the first barrel body and the second barrel body, the filtering unit comprises a pushing column and a filtering plate and is used for driving the pushing column to ascend and descend in a reciprocating mode, so that the filtering plate is pushed to ascend and descend in a reciprocating mode, and then the filtering plate is driven to conduct filtering. Besides, as the filter plate ascends and descends in the second barrel body, the upper surface and the lower surface of the filter plate can be repeatedly washed by the coating liquid, so that accumulated and blocked impurities on the filter plate can be washed down.

Description

Technical Field

[0001] This utility model relates to the field of coating solution treatment technology, specifically a coating solution circulation filtration device. Background Technology

[0002] The coating solution circulation filtration device is used to remove impurities from the coating solution to ensure coating quality. In the coating process, the coating solution is prone to mixing with impurities such as particles and dust, which affects the uniformity and adhesion of the coating. This device continuously purifies the coating solution through a circulation filtration mechanism, intercepts and removes impurities, maintains the cleanliness of the coating solution, ensures stable coating effect, reduces coating defects caused by impurities, and improves production efficiency and product quality.

[0003] In the existing technical field, the design of coating solution circulation filtration devices mostly follows the principle of continuous circulation filtration. During operation, the coating solution continuously flows through the filtration system, relying on the interception effect of the filter media to remove impurity particles. However, this continuous filtration method has a significant drawback: as filtration time goes on, a large number of impurities gradually accumulate on the surface of the filter media. Due to the limited pore size of the filter media, the accumulated impurities quickly occupy the effective filtration area, resulting in a significant decrease in the permeability of the filter media. More seriously, these tightly packed impurities form a blockage layer that is difficult to remove, which not only hinders the normal flow of the coating solution but also increases the operating resistance of the filtration system, thereby affecting the overall filtration efficiency and even negatively impacting the quality of the coating solution. Therefore, we propose a coating solution circulation filtration device. Utility Model Content

[0004] One of the technical problems this application aims to solve is that continuous filtration has a significant drawback: as filtration time goes on, a large number of impurities will gradually accumulate on the surface of the filter media. Since the filter media has limited filtration pores, the accumulated impurities will quickly occupy the effective filtration area, resulting in a significant decrease in the permeability of the filter media.

[0005] To address the aforementioned technical problems, embodiments of this application provide a coating solution circulation filtration device, comprising a first tank, and further comprising:

[0006] The second barrel is fixedly connected to the bottom of the first barrel. A partition is fixedly connected between the first barrel and the second barrel. A position sensor is fixedly connected to the top of the partition. A base frame is fixedly connected to the bottom of the second barrel.

[0007] A filtration unit is disposed in a first barrel and a second barrel. The filtration unit includes a push column and a filter plate, which are used to drive the push column to move up and down repeatedly, thereby driving the filter plate to move up and down repeatedly, and thus driving the filter plate to perform filtration.

[0008] A conveying unit is disposed outside the second tank. The conveying unit includes an input pipe and an output pipe. The input pipe is used to input the coating solution, and the output pipe is used to output the filtered coating solution.

[0009] In some embodiments, the filtration unit includes a first motor fixedly connected to the outside of a first barrel, the drive end of the first motor passing through a second barrel and fixedly connected to a crank, the bottom end of the crank being rotatably connected to a connecting rod, the bottom end of the connecting rod being rotatably connected to a rotating joint, the outside of the rotating joint being fixedly connected to a position sensing block, the bottom end of the rotating joint being fixedly connected to a long rod, the long rod passing through a partition and fixedly connected to a push column, and the bottom end of the push column being fixedly connected to a filter plate.

[0010] In some embodiments, the conveying unit includes an input component disposed on the outside of the second tank for inputting the coating solution, and an output component disposed on the other side of the second tank for outputting the filtered coating solution.

[0011] In some embodiments, the input component includes a first support frame fixedly connected to the outside of the second barrel body, an input pipe fixedly connected to the outside of the first support frame, an input end of the input pipe extending into the first barrel body, a spherical shell fixedly connected inside the input pipe, a ball valve rotatably connected inside the spherical shell, a second motor fixedly connected to the outside of the first support frame, a drive wheel fixedly connected to the drive end of the second motor, a chain meshing with the drive wheel, a driven wheel meshing with one end of the chain, and a drive end of the driven wheel extending into the spherical shell and fixedly connected to the ball valve.

[0012] In some embodiments, the output component includes a second support frame fixedly connected to the other side of the second barrel, and an output pipe fixedly connected inside the second support frame, with one end of the output pipe extending into the second barrel.

[0013] In some embodiments, a cleaning unit is provided at the bottom of the second barrel. The cleaning unit includes an adsorption platform and a discharge pipe, which is used to drive the adsorption platform to rotate to adsorb and filter impurities, and then discharge them through the discharge pipe.

[0014] In some embodiments, the cleaning unit includes a support frame fixedly connected to a base frame, a rotating disk is provided at the top of the support frame, the rotating disk is rotatably connected to the inner bottom of a second barrel, four adsorption platforms are fixedly connected to the top of the rotating disk, the four adsorption platforms are in communication with the rotating disk, a discharge pipe is fixedly connected inside the support frame, the top of the discharge pipe is rotatably connected to the rotating disk, a gear ring is fixedly sleeved on the outer side of the rotating disk, a third motor is fixedly connected to the top of the support frame, and a drive gear is fixedly connected to the drive end of the third motor.

[0015] This utility model has at least the following beneficial effects:

[0016] By setting up a filtration unit, the filter plate squeezes the coating liquid at the bottom. The coating liquid is squeezed and passes through the filter holes of the filter plate, thus filtering the coating liquid. Then, the coating liquid is continuously fed in. The internally filtered coating liquid is pushed upward by the input coating liquid to the top of the second tank, and then output through the output pipe. The coating liquid output from the output pipe can be reconnected to the input pipe, thus achieving intermittent circulation filtration.

[0017] In addition, as the filter plate moves up and down inside the second tank, both the top and bottom surfaces of the filter plate are repeatedly washed by the coating solution, which can wash away the impurities that have accumulated on the filter plate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 For the present utility model Figure 1 A sectional view;

[0020] Figure 3 This is a schematic diagram of the filter unit structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the input component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the cleaning unit structure of this utility model.

[0023] In the diagram: 1. First barrel; 2. Second barrel; 21. Baffle; 22. Position sensor; 23. Base frame; 3. Filter unit; 31. First motor; 32. Crank; 33. Connecting rod; 34. Rotary joint; 35. Position sensing block; 36. Long rod; 37. Push column; 38. Filter plate; 4. Conveying unit; 41. Input component; 411. First support frame; 412. Input pipe; 413. Spherical shell; 414. Ball valve; 415. Second motor; 416. Drive wheel; 417. Chain; 418. Driven wheel; 42. Output component; 421. Second support frame; 422. Output pipe; 5. Cleaning unit; 51. Support frame; 52. Rotary disk; 53. Adsorption platform; 54. Discharge pipe; 55. Gear ring; 56. Third motor; 57. Drive gear. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0025] Please see Figures 1-5 This utility model provides a technical solution:

[0026] A coating solution circulation filtration device includes a first tank 1, a second tank 2, a filtration unit 3, and a conveying unit 4. The second tank 2 is fixedly connected to the bottom of the first tank 1. A partition 21 is fixedly connected between the first tank 1 and the second tank 2. A position sensor 22 is fixedly connected to the top of the partition 21. A base frame 23 is fixedly connected to the bottom of the second tank 2. The filtration unit 3 is disposed inside the first tank 1 and the second tank 2. The filtration unit 3 includes a push column 37 and a filter plate 38, which drives the push column 37 to reciprocate up and down, thereby driving the filter plate 38 to reciprocate up and down, and thus driving the filter plate 38 to perform filtration. The conveying unit 4 is disposed outside the second tank 2. The conveying unit 4 includes an input pipe 412 and an output pipe 422. The input pipe 412 is used to input the coating solution, and the output pipe 422 is used to output the filtered coating solution.

[0027] The filter unit 3 includes a first motor 31 fixedly connected to the outside of the first barrel 1. The drive end of the first motor 31 passes through the second barrel 2 and is fixedly connected to a crank 32. The bottom end of the crank 32 is rotatably connected to a connecting rod 33. The bottom end of the connecting rod 33 is rotatably connected to a rotating joint 34. The outside of the rotating joint 34 is fixedly connected to a position sensing block 35. The position sensing block 35 and the position sensor 22 will be triggered in conjunction. This is existing technology and will not be described in detail here. The bottom end of the rotating joint 34 is fixedly connected to a long rod 36. The long rod 36 passes through the partition 21 and is fixedly connected to a push column 37. The bottom end of the push column 37 is fixedly connected to a filter plate 38. The filter plate 38 can be replaced to facilitate the filtration of impurities of different specifications.

[0028] The conveying unit 4 includes an input component 41 located on the outside of the second tank 2 for inputting the coating solution, and an output component 42 located on the other side of the second tank 2 for outputting the filtered coating solution. The input component 41 includes a first support frame 411 fixedly connected to the outside of the second tank 2, an input pipe 412 fixedly connected to the outside of the first support frame 411, the input end of the input pipe 412 extending into the first tank 1, a ball shell 413 fixedly connected inside the input pipe 412, and a ball valve 414 rotatably connected inside the ball shell 413. The ball valve 414 is hollow and can be rotated to open and close the flow. A second motor 415 is fixedly connected to the outside of the first support frame 411. A drive wheel 416 is fixedly connected to the drive end of 415. A chain 417 is meshed with the drive wheel 416. A driven wheel 418 is meshed with one end of the chain 417. The drive end of the driven wheel 418 extends into the ball shell 413 and is fixedly connected to the ball valve 414. The output component 42 includes a second support frame 421 fixedly connected to the other side of the second barrel 2. An output pipe 422 is fixedly connected inside the second support frame 421. One end of the output pipe 422 extends into the second barrel 2. The position of the output pipe 422 is higher than that of the input pipe 412. In this way, when the coating liquid in the second barrel 2 is full, it will flow out into the input pipe 412 and then be discharged from the device through the output pipe 422.

[0029] In operation, the first motor 31 is started first, driving the crank 32 to rotate, which in turn drives the connecting rod 33 to rotate. The connecting rod 33 then drives the rotating joint 34 and the long rod 36 to reciprocate up and down, thereby driving the push column 37 and the filter plate 38 to reciprocate up and down. At the same time, when the rotating joint 34 and the externally installed position sensing block 35 rise synchronously, the position sensor receives a signal and starts the second motor 415. The second motor 415 then drives the drive wheel 416, sprocket, and driven wheel 418 in linkage. The rotation of the driven wheel 418 drives the ball valve 414 to rotate in the ball shell 413, opening the ball valve 414. At this time, the coating solution is input into the second tank 2 through the input pipe 412. Then, when the rotating joint 34, the position sensing block 35, and the filter plate 38 descend synchronously, the position sensor 22 receives a signal. The signal will drive the second motor 415 to reverse, causing the ball valve 414 to gradually close. At this time, the input coating solution will remain in the second tank 2. At the same time, the filter plate 38 will descend, squeezing the coating solution at the bottom. The coating solution will be squeezed through the filter holes of the filter plate 38, thus filtering the coating solution. Then, the input and filtering will be circulated. The internally filtered coating solution will be pushed to the top of the second tank 2 by the input coating solution, and then output through the output pipe 422. The coating solution output by the output pipe 422 can be reconnected to the input pipe 412, thus realizing intermittent circulation filtration. In addition, as the filter plate 38 rises and falls in the second tank 2, the upper and lower surfaces of the filter plate 38 will be repeatedly washed by the coating solution, thus washing away the impurities that have accumulated on the filter plate 38. Example 2

[0030] Please see Figure 1 and Figure 5 This utility model provides a technical solution:

[0031] Unlike Embodiment 1, the bottom of the second barrel 2 is provided with a cleaning unit 5. The cleaning unit 5 includes an adsorption platform 53 and a discharge pipe 54, which is used to drive the adsorption platform 53 to rotate to adsorb and filter impurities, and then discharge them through the discharge pipe 54. The cleaning unit 5 includes a support frame 51 fixedly connected to the base frame 23. A rotating disk 52 is provided on the top of the support frame 51. The rotating disk 52 is rotatably connected to the inner bottom of the second barrel 2. Four adsorption platforms 53 are fixedly connected to the top of the rotating disk 52. The four adsorption platforms 53 are in communication with the rotating disk 52. The discharge pipe 54 is fixedly connected inside the support frame 51. The top of the discharge pipe 54 is rotatably connected to the rotating disk 52. A gear ring 55 is fixedly sleeved on the outside of the rotating disk 52. A third motor 56 is fixedly connected to the top of the support frame 51. A drive gear 57 is fixedly connected to the drive end of the third motor 56. Gravity one-way valves are provided in the four adsorption platforms 53. They only open during rotation. This is prior art and will not be described in detail here.

[0032] After the device stops, the third motor 56 can be started. The third motor 56 drives the drive gear 57 to rotate, which in turn drives the gear ring 55 to rotate, and synchronously drives the rotating disk 52 to rotate. The rotation of the rotating disk 52 will synchronously drive the four adsorption platforms 53 to rotate. The rotation of the adsorption platforms 53 will generate a downward suction force to suck out the deposited impurities, and then discharge them from the device through the discharge pipe 54.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A coating solution circulation filtration device, comprising a first tank (1), characterized in that: It also includes: The second barrel (2) is fixedly connected to the bottom of the first barrel (1). A partition (21) is fixedly connected between the first barrel (1) and the second barrel (2). A position sensor (22) is fixedly connected to the top of the partition (21). A base frame (23) is fixedly connected to the bottom of the second barrel (2). The filter unit (3) is disposed in the first barrel (1) and the second barrel (2). The filter unit (3) includes a push column (37) and a filter plate (38), which is used to drive the push column (37) to move up and down repeatedly, thereby driving the filter plate (38) to move up and down repeatedly, and thus driving the filter plate (38) to perform filtration. The conveying unit (4) is located outside the second barrel (2). The conveying unit (4) includes an input pipe (412) and an output pipe (422). The input pipe (412) is used to input the coating liquid, and the output pipe (422) is used to output the filtered coating liquid.

2. The coating solution circulation filtration device according to claim 1, characterized in that: The filter unit (3) includes a first motor (31) fixedly connected to the outside of the first barrel (1). The drive end of the first motor (31) passes through the second barrel (2) and is fixedly connected to a crank (32). The bottom end of the crank (32) is rotatably connected to a connecting rod (33). The bottom end of the connecting rod (33) is rotatably connected to a rotating joint (34). The outside of the rotating joint (34) is fixedly connected to a position sensing block (35). The bottom end of the rotating joint (34) is fixedly connected to a long rod (36). The long rod (36) passes through the partition (21) and is fixedly connected to a push column (37). The bottom end of the push column (37) is fixedly connected to a filter plate (38).

3. The coating solution circulation filtration device according to claim 1, characterized in that: The conveying unit (4) includes an input component (41) disposed on the outside of the second barrel (2) for inputting the coating liquid, and an output component (42) disposed on the other side of the second barrel (2) for outputting the filtered coating liquid.

4. The coating solution circulation filtration device according to claim 3, characterized in that: The input component (41) includes a first support frame (411) fixedly connected to the outside of the second barrel (2). An input pipe (412) is fixedly connected to the outside of the first support frame (411). The input end of the input pipe (412) extends into the first barrel (1). A spherical shell (413) is fixedly connected inside the input pipe (412). A ball valve (414) is rotatably connected inside the spherical shell (413). A second motor (415) is fixedly connected to the outside of the first support frame (411). A drive wheel (416) is fixedly connected to the drive end of the second motor (415). A chain (417) is meshed and sleeved on the outside of the drive wheel (416). A driven wheel (418) is meshed and sleeved on one end of the chain (417). The drive end of the driven wheel (418) extends into the spherical shell (413) and is fixedly connected to the ball valve (414).

5. The coating solution circulation filtration device according to claim 3, characterized in that: The output component (42) includes a second support frame (421) fixedly connected to the other side of the second barrel (2), and an output pipe (422) fixedly connected inside the second support frame (421), with one end of the output pipe (422) extending into the second barrel (2).

6. The coating solution circulation filtration device according to claim 1, characterized in that: The bottom of the second barrel (2) is provided with a cleaning unit (5), which includes an adsorption platform (53) and a discharge pipe (54) for driving the adsorption platform (53) to rotate to adsorb and filter impurities, and then discharge them through the discharge pipe (54).

7. The coating solution circulation filtration device according to claim 6, characterized in that: The cleaning unit (5) includes a support frame (51) fixedly connected to the base frame (23). A rotating disk (52) is provided on the top of the support frame (51). The rotating disk (52) is rotatably connected to the inner bottom of the second barrel (2). Four adsorption platforms (53) are fixedly connected to the top of the rotating disk (52). The four adsorption platforms (53) are connected to the rotating disk (52). A discharge pipe (54) is fixedly connected inside the support frame (51). The top of the discharge pipe (54) is rotatably connected to the rotating disk (52). A gear ring (55) is fixedly sleeved on the outside of the rotating disk (52). A third motor (56) is fixedly connected to the top of the support frame (51). A drive gear (57) is fixedly connected to the drive end of the third motor (56).

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