Photocuring material filtering device for optical diffusion film coating and filtering method of photocuring material filtering device

Abstract

The invention belongs to the technical field of filtering equipment, and discloses a photocuring material filtering device for optical diffusion film coating and a filtering method thereof.The photocuring material filtering device comprises a communicating sleeve and a suction pipe fixedly connected to the top of the communicating sleeve, and a bottom supporting part is arranged below the communicating sleeve. Other filter cartridges and filter assemblies are rapidly switched to move to the suction hole and the first hole through rotation control, rapid switching is achieved, shutdown is not needed in the switching process, rapid replacement treatment can be achieved when one filter assembly is seriously blocked, the filter efficiency is greatly improved, and the filter cost is reduced. The distribution assembly drives the filter cartridge and the filter assembly to rotate and switch, when the filter cartridge and the filter assembly rotate to the position between the flushing assembly and the second hole, flushing water from top to bottom is matched, the filter assembly is reversely flushed, automatic cleaning is achieved, blockages and accumulated filtered matter are flushed out, automatic cleaning is completed, and the practicability is high. Self-cleaning and filtering can be carried out at the same time, and the use effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of filtering equipment, and in particular relates to a light-curing material filtering device for optical diffusion film coating and a filtering method thereof. Background Art

[0002] The photocurable materials of optical diffusion film coatings are mainly chemical substances that form film layers through photocuring reactions. During the production and preparation process, filtering treatment is required. The photocurable material filtering device of optical diffusion film coatings is mainly a device for controlling the purity and uniformity of the solutions of materials (such as resins, monomers, etc.) required in the photocuring process.

[0003] In the prior art, the photocurable material filtering device of the optical diffusion film coating uses a pumping device to suck the material solution to be filtered during the filtering process, and cooperates with the filter mesh and filter membrane in the filtering device at the suction end to achieve the filtering of impurity particles in the liquid. However, with the continuous filtering process, the impurities remaining in the filter mesh holes and the filter membrane continue to accumulate and clog the mesh holes, which weakens the filtering capacity and even completely clogs and cannot filter. Usually, timely replacement and unblocking operations are required. However, the current replacement and unblocking process requires stopping the pumping, and the shutdown replacement and cleaning process is time-consuming and labor-intensive, which reduces the filtering efficiency and has a poor use effect. Summary of the invention

[0004] The object of the present invention is to provide a device for filtering light-curing materials of optical diffusion film coatings and a filtering method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a light-curing material filtering device for optical diffusion film coating and a filtering method thereof, comprising a connecting sleeve and a suction pipe fixedly connected to the top of the connecting sleeve, a bottom support portion is provided below the connecting sleeve, a connecting rod is fixedly connected between the connecting sleeve and the bottom support portion, a distribution component is rotatably installed between the connecting sleeve and the bottom support portion, a filter cartridge is distributed around the inside of the distribution component, a filter cartridge is elastically sleeved inside the filter cartridge, a flushing component is fixedly sleeved on the top of the connecting sleeve, and the filter cartridge is respectively connected to the connecting sleeve and the bottom support portion through the distribution component;

[0006] The distribution assembly includes an upper plate, a lower plate and a through hole, the filter cartridge is fixedly connected between the upper plate and the lower plate, the through hole is opened in the upper plate and the lower plate and corresponds to the filter cartridge, and the filter cartridge is connected to the through hole.

[0007] Preferably, the distribution component also includes a No. 2 arc groove and an annular groove, the No. 2 arc groove is opened at the top of the lower plate, and the annular groove is opened at the bottom of the lower plate, the annular groove corresponds one-to-one to the through hole and is on the outside of the through hole, and the annular groove corresponds one-to-one to the No. 2 arc groove and is connected to each other.

[0008] Preferably, the filter cartridge includes a cartridge body, a No. 1 ring, a No. 2 ring, a heating chamber and an air outlet hole. The cartridge body is fixedly connected between an upper plate and a lower plate, the cartridge body is communicated with a through hole, the No. 1 ring and the No. 2 ring are both fixedly connected in the cartridge body, the heating chamber is opened in the inner wall of the cartridge body and passes through the bottom of the cartridge body, and the air outlet hole is opened on the outer surface of the cartridge body and is communicated with the heating chamber.

[0009] Preferably, a suction hole is provided at the bottom of the connecting sleeve, the suction hole corresponds to the position of the suction pipe, the suction hole is eccentrically arranged on the bottom surface of the connecting sleeve, and a rotating component is provided on the top of the connecting sleeve, and the rotating component drives the distribution component to rotate.

[0010] Preferably, the rotating assembly includes a connecting shaft, gear one and a power unit, the power unit is fixed on the top of the connecting sleeve, the power unit includes a motor and gear two, the motor drives gear two to rotate, gear two is meshingly connected with gear one, gear one is fixedly sleeved on the outer surface of the connecting shaft, the connecting shaft is rotatably sleeved with the connecting sleeve, the lower end of the connecting shaft passes through the connecting sleeve and is fixedly connected to the distribution assembly, the outer sleeve of the connecting shaft is provided with a sealing sleeve, and the sealing sleeve is fixed on the upper and lower end surfaces of the connecting sleeve.

[0011] Preferably, the flushing assembly includes an intermediate sleeve, a flushing pipe and a solenoid valve. The intermediate sleeve is fixedly sleeved inside the connecting sleeve, and the intermediate sleeve and the suction pipe are symmetrically distributed on the connecting sleeve. The flushing pipe is fixedly connected to the top of the intermediate sleeve and is communicated with the intermediate sleeve. The solenoid valve is fixedly sleeved in the flushing pipe, and the intermediate sleeve and the suction hole are both located on the rotation path of the filter cartridge.

[0012] Preferably, the filter assembly includes a movable tube, a filter screen, a filter membrane and a spring. The movable tube is movably sleeved inside the cylinder. The filter screen and the filter membrane are fixedly connected in the movable tube. The filter screen is located below the filter membrane. The spring is fixedly connected between the movable tube and the No. 1 ring. The No. 2 ring is located below the movable tube.

[0013] Preferably, an air supply part is fixedly installed at the bottom of the bottom support part, and the air supply part inputs flowing air into the interior of the bottom support part. The bottom support part includes a bottom plate, hole No. 1, hole No. 2, an annular cavity, a heating tube and arc groove No. 1. The hole No. 1 and the hole No. 2 are both opened at the top of the bottom plate and are symmetrically distributed on the left and right. The central axis of the hole No. 1 is the same as the central axis of the suction hole, and the central axis of the hole No. 2 is the same as the central axis of the flushing assembly. The annular cavity is opened inside the bottom plate, and the annular cavity is located on the outside of the hole No. 1. The arc groove No. 1 is opened at the top of the bottom plate and is connected with the annular cavity. The arc groove No. 1 is located on the rotation path of the cylinder. The heating tube is fixedly installed in the annular cavity. The output gas of the air supply part is input into the heating cavity through the annular cavity. A connecting external pipe is provided at the bottom of the hole No. 1.

[0014] Preferably, a sealing assembly is provided at the bottom of the connecting sleeve and the top of the bottom supporting portion. The sealing assembly includes a connecting ring frame and a sealing gasket. The sealing gasket is fixedly sleeved in the connecting ring frame. The two connecting ring frames are respectively sleeved on the outer sides of the upper plate and the lower plate.

[0015] A filtering method of a light-curing material filtering device for an optical diffusion film coating comprises the following filtering steps:

[0016] Step 1: During the filtering process, a group of filter cartridges are kept connected to the suction hole through the distribution assembly, and at this time, the bottom of the filter cartridge is connected to the No. 1 hole of the bottom support part. As the suction pump connected to the suction pipe is started, the external pipe corresponding to the bottom of the No. 1 hole is inserted into the material solution to be filtered, so that the material solution is sucked into the filter cartridge through the external pipe and the No. 1 hole, and the filtration is completed through the filtering assembly. The filtered clean material solution is input into the pump body upward through the suction hole, the connecting sleeve and the suction pipe, and is transported to the target storage area;

[0017] The second step: when it is necessary to switch the filter assembly, start the rotating assembly, and the rotating assembly drives the distribution assembly to rotate, so that the filter cartridge with the clean filter assembly rotates to align with the suction hole, and a new round of suction filtration is performed to complete the rapid switching. When it is necessary to rinse the filter assembly, the filter cartridge with the blocked and dirty filter assembly rotates to align with the No. 2 hole. At this time, the top of the filter cartridge is aligned with the flushing assembly, and the external flushing water is passed into the flushing assembly, and the solenoid valve is kept intermittently opened and closed, so that the flushing water entering the filter cartridge intermittently flushes the filter assembly. In the reverse flushing state, the water flow penetrates the filter membrane and acts on the top of the filter screen, pushing the blockage in the opposite direction, and the blockage follows the flushing water through the No. 2 hole to complete the flushing. During intermittent flushing, as the flushing water flow pressure acts on the filter assembly, the movable tube of the filter assembly is pushed down and hits the No. 2 ring, the spring is stretched, and after the water flow is turned off, the spring pulls the movable tube upward to reset, so that the filter assembly vibrates up and down repeatedly, and the blockage is further detached and falls out;

[0018] Step 3: When filtering, start the heating tube and the air supply part, and the slow air volume enters the annular cavity, takes away part of the heat, and goes up along the No. 1 arc groove through the annular groove and the No. 2 arc groove into the heating cavity. The temperature of the material solution in the filter cartridge rises and the fluidity increases. After heat exchange, the hot air flows out through the air outlet holes to complete the auxiliary filtration.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The present invention utilizes a rotating component to drive a distribution component to realize a rotating action, thereby realizing position switching of multiple groups of filter cartridges and corresponding filter components in the distribution component. When the filter cartridge is aligned with the suction hole and the No. 1 hole, the filtration treatment of the inhaled material solution is realized, and other filter cartridges and filter components are quickly switched to move to the suction hole and the No. 1 hole through rotation control to realize rapid switching, and no shutdown is required during the switching process. When a group of filter components is seriously clogged, rapid replacement can be realized, and the filtration efficiency is greatly improved. The filter cartridge and the filter component are driven to rotate and switch by the distribution component. When the filter cartridge and the filter component are rotated to between the flushing component and the No. 2 hole, the filter component is flushed in the reverse direction with the flushing water from top to bottom, and automatic cleaning is realized to flush out the blockage and accumulated filter material, and complete automatic cleaning. Moreover, self-cleaning and filtering can be performed simultaneously, and the use effect is good.

[0021] 2. The present invention utilizes a filter assembly elastically connected in the filter cartridge, cooperates with the No. 1 ring and the No. 2 ring distributed up and down, and cooperates with the solenoid valve in the flushing assembly. The solenoid valve is intermittently opened to allow the flushing water to flow in intermittently. The intermittently introduced flushing water generates intermittent pressure on the filter assembly, and the elasticity of the spring under the intermittent pressure causes the filter assembly to vibrate back and forth up and down, and collides with the No. 2 ring when moving downward, thereby achieving reciprocating up and down movement while performing vibration processing, and cooperates with the pressure of the flushing water to further improve the self-cleaning effect by utilizing the vibration effect.

[0022] 3. The present invention utilizes the cooperation of the heating tube and the annular cavity in the bottom support part, and cooperates with the heating cavity in the filter cartridge, and through the lower plate in the distribution assembly, the slow airflow provided by the air supply part is heated and guided to the inner wall of the filter cartridge, so as to fully heat the material solution sucked upward for filtration, reduce the viscosity of the material liquid, and increase the fluidity, thereby improving the filtering effect and achieving good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0025] Figure 3It is a schematic diagram of the connection between the distribution component and the rotating component of the present invention;

[0026] Figure 4 It is a cross-sectional schematic diagram of the connecting sleeve and the flushing assembly of the present invention;

[0027] Figure 5 It is a cross-sectional schematic diagram of the filter cartridge and the filter assembly of the present invention;

[0028] Figure 6 It is a top schematic diagram of the lower plate of the present invention;

[0029] Figure 7 It is a bottom schematic diagram of the lower plate of the present invention;

[0030] Figure 8 It is a cross-sectional schematic diagram of the bottom support portion of the present invention.

[0031] In the figure: 1. connecting sleeve; 2. bottom support part; 21. bottom plate; 22. No. 1 hole; 23. No. 2 hole; 24. annular cavity; 25. heating tube; 26. No. 1 arc groove; 3. connecting rod; 4. suction pipe; 5. distribution assembly; 51. upper plate; 52. lower plate; 53. through hole; 54. No. 2 arc groove; 55. annular groove; 6. filter cylinder; 61. cylinder body; 62. No. 1 ring; 63. No. 2 ring; 64. heating chamber; 65. air outlet hole; 7. flushing assembly; 71. middle sleeve; 72. flushing pipe; 73. solenoid valve; 8. rotating assembly; 81. connecting shaft; 82. gear 1; 83. power unit; 9. air supply unit; 10. connecting ring frame; 11. sealing gasket; 12. filter assembly; 121. movable tube; 122. filter screen; 123. filter membrane; 124. spring; 13. suction hole. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figures 1 to 8As shown, an embodiment of the present invention provides a light-curing material filtering device for optical diffusion film coating and a filtering method thereof, comprising a connecting sleeve 1 and a suction pipe 4 fixedly connected to the top of the connecting sleeve 1, a bottom support part 2 is provided below the connecting sleeve 1, a connecting rod 3 is fixedly connected between the connecting sleeve 1 and the bottom support part 2, a distribution component 5 is rotatably installed between the connecting sleeve 1 and the bottom support part 2, a filter cartridge 6 is distributed around the inside of the distribution component 5, a filter component 12 is elastically sleeved inside the filter cartridge 6, a flushing component 7 is fixedly sleeved on the top of the connecting sleeve 1, and the filter cartridge 6 is respectively connected to the connecting sleeve 1 and the bottom support part 2 through the distribution component 5;

[0034] The distribution assembly 5 includes an upper plate 51, a lower plate 52 and a through hole 53. The filter cartridge 6 is fixedly connected between the upper plate 51 and the lower plate 52. The through hole 53 is opened in the upper plate 51 and the lower plate 52 and corresponds to the filter cartridge 6, and the filter cartridge 6 is connected to the through hole 53.

[0035] Embodiment 1: During filtering, a group of filter cartridges 6 are kept connected to the suction hole 13 through the distribution component 5, and at this time, the bottom of the filter cartridge 6 is connected to the No. 1 hole 22 of the bottom support part 2. As the suction pump connected to the suction pipe 4 is started, the external pipe corresponding to the bottom of the No. 1 hole 22 is inserted into the material solution to be filtered, so that the material solution is sucked into the filter cartridge 6 through the external pipe and the No. 1 hole 22, and the filtration is completed through the filter component 12. The filtered clean material solution is input into the pump body upward through the suction hole 13, the connecting sleeve 1 and the suction pipe 4, and is transported to the target storage area. When it is necessary to switch the filter component 12, the rotating component 8 is started. The motor in the rotating component 8 drives the gear 1 82 to rotate through the gear 2, so that the connecting shaft 81 rotates, and then drives the distribution component 5 to rotate, so that the filter cartridge 6 containing the clean filter component 12 rotates to align with the suction hole 13, and a new round of suction filtration is carried out to complete rapid filtering. Switch, when it is necessary to flush the filter component 12, the rotating component 8 drives the distribution component 5 to rotate, so that the filter cartridge 6 of the filter component 12 with blockage and dirt is rotated to be aligned with the No. 2 hole 23. At this time, the top of the filter cartridge 6 is aligned with the flushing component 7, and the external flushing water is passed into the flushing component 7, and the solenoid valve 73 is kept intermittently opened and closed, so that the flushing water entering the filter cartridge 6 intermittently flushes the filter component 12. In the reverse flushing state, the water flow penetrates the filter membrane 123 and acts on the top of the filter screen 122, pushing the blockage in the opposite direction, and the blockage follows the flushing water through the No. 2 hole 23 to complete the flushing. During intermittent flushing, as the flushing water flow pressure acts on the filter component 12, the movable tube 121 of the filter component 12 is pushed down and hits the No. 2 ring 63, the spring 124 is stretched, and after the water flow is turned off, the spring 124 pulls the movable tube 121 to move up and reset, so that the filter component 12 vibrates up and down repeatedly, and the blockage is further detached and falls out.

[0036] Firstly, the distribution component 5 is driven by the rotating component 8 to realize the rotation action, thereby realizing the position switching of multiple groups of filter cartridges 6 and corresponding filter components 12 in the distribution component 5. When the filter cartridge 6 is aligned with the suction hole 13 and the No. 1 hole 22, the filtration treatment of the inhaled material solution is realized, and the other filter cartridges 6 and filter components 12 are quickly switched to the suction hole 13 and the No. 1 hole 22 through rotation control to realize rapid switching, and no shutdown is required during the switching process. When a group of filter components 12 is seriously clogged, rapid replacement can be realized, and the filtration efficiency is greatly improved. The filter cartridge 6 and the filter component 12 are driven by the distribution component 5 to rotate and switch. When the filter cartridge 6 and the filter component 12 are rotated to between the flushing component 7 and the No. 2 hole 23, the filter component 12 is flushed in the reverse direction with the flushing water from top to bottom, and automatic cleaning is realized to flush out the blockage and accumulated filter material, and complete automatic cleaning. Moreover, self-cleaning and filtering can be carried out at the same time, and the use effect is good.

[0037] In addition, by utilizing the filter assembly 12 elastically connected in the filter cartridge 6, in conjunction with the No. 1 ring 62 and the No. 2 ring 63 distributed up and down, and in conjunction with the solenoid valve 73 in the flushing assembly 7, the solenoid valve 73 is intermittently opened, so that the flushing water flow can be intermittently introduced, and the intermittently introduced flushing water is used to generate intermittent pressure on the filter assembly 12, and under the intermittent pressure, in conjunction with the elasticity of the spring 124, the filter assembly 12 vibrates back and forth up and down, and collides with the No. 2 ring 63 when moving downward, achieving reciprocating up and down movement while performing vibration processing, and in conjunction with the pressure of the flushing water, the vibration effect is used to further improve the self-cleaning effect.

[0038] Example 2: When filtering, the heating tube 25 is started, and the air supply part 9 is started, and the slow air volume enters the annular cavity 24, takes away part of the heat, and goes up along the first arc groove 26 through the annular groove 55 and the second arc groove 54 and is input into the heating cavity 64. The temperature of the material solution in the filter cartridge 6 rises and the fluidity increases. After heat exchange, the hot air flows out through the air outlet hole 65, completing the auxiliary filtration.

[0039] Firstly, by utilizing the cooperation of the heating tube 25 and the annular cavity 24 in the bottom support part 2, and cooperating with the heating cavity 64 in the filter cartridge 6, and through the lower plate 52 in the distribution assembly 5, the slow airflow provided by the air supply part 9 is heated and guided to the inner wall of the filter cartridge 6, so as to fully heat the material solution sucked upward for filtration, reduce the viscosity of the material liquid, and increase the fluidity, thereby improving the filtering effect and achieving good use effect.

[0040] Among them, the distribution component 5 also includes a No. 2 arc groove 54 and an annular groove 55. The No. 2 arc groove 54 is opened at the top of the lower plate 52, and the annular groove 55 is opened at the bottom of the lower plate 52. The annular groove 55 corresponds one-to-one to the through hole 53 and is on the outer side of the through hole 53. The annular groove 55 corresponds one-to-one to the No. 2 arc groove 54 and is connected to each other.

[0041] By utilizing the distribution assembly 5, the filter cartridge 6 is connected to the suction hole 13, the first hole 22, and the second hole 23 under the effect of rotation. The annular groove 55 and the second arc groove 54 are used to guide the hot air flow from the bottom support portion 2 to fill the inner wall of the filter cartridge 6, thereby achieving heating and improving the fluidity of the liquid.

[0042] Among them, the filter cylinder 6 includes a cylinder body 61, a No. 1 ring 62, a No. 2 ring 63, a heating chamber 64 and an air outlet hole 65. The cylinder body 61 is fixedly connected between the upper plate 51 and the lower plate 52. The cylinder body 61 is connected to the through hole 53. The No. 1 ring 62 and the No. 2 ring 63 are both fixedly connected in the cylinder body 61. The heating chamber 64 is opened in the inner wall of the cylinder body 61 and passes through the bottom of the cylinder body 61. The air outlet hole 65 is opened on the outer surface of the cylinder body 61 and is connected to the heating chamber 64.

[0043] The filter assembly 12 is assembled by utilizing the filter cartridge 6, and the assembled assembly is coordinated with the filtering, vibration, and heating treatment of the internal solution.

[0044] Among them, a suction hole 13 is opened at the bottom of the connecting sleeve 1, and the suction hole 13 corresponds to the position of the suction pipe 4. The suction hole 13 is eccentrically arranged on the bottom surface of the connecting sleeve 1. A rotating component 8 is provided on the top of the connecting sleeve 1, and the rotating component 8 drives the distribution component 5 to rotate.

[0045] By utilizing the eccentric arrangement of the suction hole 13 , it is ensured that the rotating filter cartridge 6 can be aligned and communicated with the suction hole 13 .

[0046] Among them, the rotating component 8 includes a connecting shaft 81, a gear 1 82 and a power unit 83. The power unit 83 is fixed on the top of the connecting sleeve 1. The power unit 83 includes a motor and a gear 2. The motor drives the gear 2 to rotate. The gear 2 is meshed and connected with the gear 1 82. The gear 1 82 is fixedly sleeved on the outer surface of the connecting shaft 81. The connecting shaft 81 is rotatably sleeved with the connecting sleeve 1. The lower end of the connecting shaft 81 passes through the connecting sleeve 1 and is fixedly connected to the distribution component 5. The outer sleeve of the connecting shaft 81 is provided with a sealing sleeve, which is fixed on the upper and lower end surfaces of the connecting sleeve 1.

[0047] By utilizing the rotating assembly 8 to provide a rotating force, rotation control is achieved to switch the filter cartridge 6 and the self-flushing mode. The sealing sleeve is an existing shaft seal setting method, and by utilizing the setting of the sealing sleeve, the dynamic seal of the rotation of the connecting shaft 81 is ensured to achieve shaft sealing.

[0048] Among them, the flushing assembly 7 includes an intermediate sleeve 71, a flushing pipe 72 and a solenoid valve 73. The intermediate sleeve 71 is fixedly sleeved inside the connecting sleeve 1, and the intermediate sleeve 71 and the suction pipe 4 are symmetrically distributed on the connecting sleeve 1. The flushing pipe 72 is fixedly connected to the top of the intermediate sleeve 71 and is connected to the intermediate sleeve 71. The solenoid valve 73 is fixedly sleeved in the flushing pipe 72. The intermediate sleeve 71 and the suction hole 13 are both located on the rotation path of the filter cartridge 6.

[0049] The flushing component 7 performs a flushing operation by introducing water flow in reverse, thereby achieving automatic cleaning of the filter component 12 , and cooperates with the intermittent opening and closing of the solenoid valve 73 to achieve pressure shock of the intermittent flushing water flow, thereby achieving vibration treatment of the filter component 12 .

[0050] Among them, the filter assembly 12 includes a movable tube 121, a filter screen 122, a filter membrane 123 and a spring 124. The movable tube 121 is movably sleeved inside the cylinder 61. The filter screen 122 and the filter membrane 123 are fixedly connected in the movable tube 121. The filter screen 122 is located below the filter membrane 123. The spring 124 is fixedly connected between the movable tube 121 and the No. 1 ring 62. The No. 2 ring 63 is located below the movable tube 121.

[0051] The material solution is filtered through the filter assembly 12 , and the elasticity of the spring 124 and the position setting of the second ring 63 are combined to achieve reciprocating vibration and provide an automatic clearing effect.

[0052] Among them, an air supply part 9 is fixedly installed at the bottom of the bottom support part 2, and the air supply part 9 inputs the flowing air into the interior of the bottom support part 2. The bottom support part 2 includes a bottom plate 21, a No. 1 hole 22, a No. 2 hole 23, an annular cavity 24, a heating tube 25 and a No. 1 arc groove 26. The No. 1 hole 22 and the No. 2 hole 23 are both opened at the top of the bottom plate 21 and are symmetrically distributed on the left and right. The central axis of the No. 1 hole 22 is the same as the central axis of the suction hole 13, and the central axis of the No. 2 hole 23 is the same as the central axis of the flushing component 7. The annular cavity 24 is opened inside the bottom plate 21, and the annular cavity 24 is located on the outside of the No. 1 hole 22. The No. 1 arc groove 26 is opened at the top of the bottom plate 21 and is connected with the annular cavity 24. The No. 1 arc groove 26 is located on the rotation path of the cylinder 61. The heating tube 25 is fixedly installed in the annular cavity 24. The output gas of the air supply part 9 is input into the heating cavity 64 through the annular cavity 24. A connecting external pipe is provided at the bottom of the No. 1 hole 22.

[0053] The bottom support part 2 is connected to the bottom of the filter cartridge 6 and the material solution to be filtered, and cooperates with the air supply part 9 and the annular cavity 24 to introduce hot air, achieve a heating effect, improve liquid fluidity, and improve the filtering effect.

[0054] Among them, sealing components are provided at the bottom of the connecting sleeve 1 and the top of the bottom support part 2. The sealing components include a connecting ring frame 10 and a sealing gasket 11. The sealing gasket 11 is fixedly sleeved in the connecting ring frame 10. The two connecting ring frames 10 are respectively sleeved on the outer sides of the upper plate 51 and the lower plate 52.

[0055] The sealing portion is formed by connecting the ring frame 10 and the sealing gasket 11 to ensure that there is no leakage when the distribution component 5 is rotated and connected.

[0056] A filtering method of a light-curing material filtering device for an optical diffusion film coating comprises the following filtering steps:

[0057] Step 1: During the filtering process, a group of filter cartridges 6 are kept connected to the suction hole 13 through the distribution assembly 5, and at this time, the bottom of the filter cartridge 6 is connected to the No. 1 hole 22 of the bottom support part 2. As the suction pump connected to the suction pipe 4 is started, the external pipe corresponding to the bottom of the No. 1 hole 22 is inserted into the material solution to be filtered, so that the material solution is sucked into the filter cartridge 6 through the external pipe and the No. 1 hole 22, and the filtration is completed through the filter assembly 12. The filtered clean material solution is input into the pump body upward through the suction hole 13, the connecting sleeve 1 and the suction pipe 4, and is transported to the target storage area;

[0058] Step 2: When it is necessary to switch the filter assembly 12, start the rotating assembly 8, which drives the distribution assembly 5 to rotate, so that the filter cartridge 6 with the clean filter assembly 12 rotates to align with the suction hole 13, and a new round of suction filtration is performed to complete the rapid switching. When it is necessary to flush the filter assembly 12, the filter cartridge 6 with the clogged and dirty filter assembly 12 rotates to align with the No. 2 hole 23. At this time, the top of the filter cartridge 6 is aligned with the flushing assembly 7, and the external flushing water is passed into the flushing assembly 7, and the solenoid valve 73 is kept intermittently opened and closed, so that the water entering the filter cartridge The flushing water in 6 intermittently flushes the filter assembly 12. In the reverse flushing state, the water flow penetrates the filter membrane 123 and acts on the top of the filter screen 122, pushing the blockage in the reverse direction. The blockage follows the flushing water and flows away through the No. 2 hole 23 to complete the flushing. During intermittent flushing, as the flushing water flow pressure acts on the filter assembly 12, the movable tube 121 of the filter assembly 12 is pushed down and hits the No. 2 ring 63, and the spring 124 is stretched. After the water flow is turned off, the spring 124 pulls the movable tube 121 to move up and reset, so that the filter assembly 12 vibrates up and down repeatedly, and the blockage is further detached and falls out;

[0059] Step 3: When filtering, start the heating tube 25 and the air supply part 9, and the slow air volume enters the annular cavity 24, takes away part of the heat, and goes up along the first arc groove 26 through the annular groove 55 and the second arc groove 54 to be input into the heating cavity 64. The temperature of the material solution in the filter cartridge 6 rises and the fluidity increases. After heat exchange, the hot air flows out through the air outlet hole 65 to complete the auxiliary filtration.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A light-curing material filtering device for optical diffusion film coating, comprising a connecting sleeve (1) and a suction pipe (4) fixedly connected to the top of the connecting sleeve (1), characterized in that: A bottom support portion (2) is provided below the communication sleeve (1), a connecting rod (3) is fixedly connected between the communication sleeve (1) and the bottom support portion (2), a distribution assembly (5) is rotatably mounted between the communication sleeve (1) and the bottom support portion (2), a filter cartridge (6) is distributed around the inside of the distribution assembly (5), a filter assembly (12) is elastically sleeved inside the filter cartridge (6), a flushing assembly (7) is fixedly sleeved on the top of the communication sleeve (1), and the filter cartridge (6) is respectively connected to the communication sleeve (1) and the bottom support portion (2) through the distribution assembly (5); The distribution assembly (5) comprises an upper plate (51), a lower plate (52) and a through hole (53); the filter cartridge (6) is fixedly connected between the upper plate (51) and the lower plate (52); the through hole (53) is provided in the upper plate (51) and the lower plate (52) and corresponds to the filter cartridge (6); and the filter cartridge (6) is in communication with the through hole (53).

2. The light-curing material filtering device for optical diffusion film coating according to claim 1, characterized in that: The distribution component (5) further comprises a second arc groove (54) and an annular groove (55), wherein the second arc groove (54) is provided at the top of the lower plate (52), and the annular groove (55) is provided at the bottom of the lower plate (52), wherein the annular groove (55) corresponds one-to-one to the through hole (53) and is located on the outer side of the through hole (53), and the annular groove (55) corresponds one-to-one to the second arc groove (54) and is connected to each other.

3. The light-curing material filtering device for optical diffusion film coating according to claim 2, characterized in that: The filter cartridge (6) comprises a cartridge body (61), a first ring (62), a second ring (63), a heating chamber (64) and an air outlet hole (65); the cartridge body (61) is fixedly connected between an upper plate (51) and a lower plate (52); the cartridge body (61) is communicated with the through hole (53); the first ring (62) and the second ring (63) are both fixedly connected in the cartridge body (61); the heating chamber (64) is provided in the inner wall of the cartridge body (61) and passes through the bottom of the cartridge body (61); and the air outlet hole (65) is provided on the outer surface of the cartridge body (61) and is communicated with the heating chamber (64).

4. The light-curing material filtering device for optical diffusion film coating according to claim 3, characterized in that: The bottom of the connecting sleeve (1) is provided with a suction hole (13), the position of the suction hole (13) corresponds to the position of the suction pipe (4), and the suction hole (13) is eccentrically arranged on the bottom surface of the connecting sleeve (1). The top of the connecting sleeve (1) is provided with a rotating component (8), and the rotating component (8) drives the distribution component (5) to rotate.

5. The light-curing material filtering device for optical diffusion film coating according to claim 4, characterized in that: The rotating assembly (8) comprises a connecting shaft (81), a gear 1 (82) and a power unit (83). The power unit (83) is fixed on the top of the connecting sleeve (1). The power unit (83) comprises a motor and a gear 2. The motor drives the gear 2 to rotate. The gear 2 is meshed and connected with the gear 1 (82). The gear 1 (82) is fixedly sleeved on the outer surface of the connecting shaft (81). The connecting shaft (81) is rotatably sleeved with the connecting sleeve (1). The lower end of the connecting shaft (81) passes through the connecting sleeve (1) and is fixedly connected to the distribution assembly (5). The outer sleeve of the connecting shaft (81) is provided with a sealing sleeve, which is fixed on the upper and lower end surfaces of the connecting sleeve (1).

6. The light-curing material filtering device for optical diffusion film coating according to claim 5, characterized in that: The flushing assembly (7) comprises an intermediate sleeve (71), a flushing pipe (72) and a solenoid valve (73); the intermediate sleeve (71) is fixedly sleeved inside the connecting sleeve (1), and the intermediate sleeve (71) and the suction pipe (4) are symmetrically distributed on the connecting sleeve (1); the flushing pipe (72) is fixedly connected to the top of the intermediate sleeve (71) and is in communication with the intermediate sleeve (71); the solenoid valve (73) is fixedly sleeved in the flushing pipe (72); and the intermediate sleeve (71) and the suction hole (13) are both located on the rotation path of the filter cartridge (6).

7. The light-curing material filtering device for optical diffusion film coating according to claim 6, characterized in that: The filter assembly (12) comprises a movable tube (121), a filter screen (122), a filter membrane (123) and a spring (124); the movable tube (121) is movably sleeved inside the cylinder (61); the filter screen (122) and the filter membrane (123) are both fixedly connected in the movable tube (121); the filter screen (122) is located below the filter membrane (123); the spring (124) is fixedly connected between the movable tube (121) and the first ring (62); and the second ring (63) is located below the movable tube (121).

8. The light-curing material filtering device for optical diffusion film coating according to claim 7, characterized in that: An air supply portion (9) is fixedly installed at the bottom of the bottom support portion (2), and the air supply portion (9) inputs flowing air into the interior of the bottom support portion (2). The bottom support portion (2) comprises a bottom plate (21), a No. 1 hole (22), a No. 2 hole (23), an annular cavity (24), a heating tube (25) and a No. 1 arc groove (26). The No. 1 hole (22) and the No. 2 hole (23) are both opened on the top of the bottom plate (21) and are symmetrically distributed on the left and right. The central axis of the No. 1 hole (22) is the same as the central axis of the suction hole (13), and the central axis of the No. 2 hole (23) is the same as the central axis of the suction hole (13). The annular cavity (24) is identical to the central axis of the flushing assembly (7), and is opened inside the bottom plate (21), and the annular cavity (24) is located outside the No. 1 hole (22). The No. 1 arc groove (26) is opened on the top of the bottom plate (21) and is connected to the annular cavity (24). The No. 1 arc groove (26) is located on the rotation path of the cylinder (61). The heating tube (25) is fixedly installed in the annular cavity (24), and the output gas of the air supply part (9) is input into the heating cavity (64) through the annular cavity (24). A connecting external pipe is provided at the bottom of the No. 1 hole (22).

9. The light-curing material filtering device for optical diffusion film coating according to claim 8, characterized in that: The bottom of the connecting sleeve (1) and the top of the bottom supporting portion (2) are both provided with sealing components, the sealing components comprising a connecting ring frame (10) and a sealing gasket (11), the sealing gasket (11) being fixedly sleeved in the connecting ring frame (10), and the two connecting ring frames (10) being sleeved on the outer sides of the upper plate (51) and the lower plate (52) respectively.

10. The filtering method of the light-curing material filtering device of the optical diffusion film coating according to any one of claims 1 to 9, characterized in that: The filtering steps include: Step 1: During the filtering process, a group of filter cartridges (6) are kept in communication with the suction hole (13) through the distribution assembly (5), and at this time, the bottom of the filter cartridge (6) is connected to the No. 1 hole (22) of the bottom support part (2). As the suction pump connected to the suction pipe (4) is started, the external pipe corresponding to the bottom of the No. 1 hole (22) is inserted into the material solution to be filtered, so that the material solution is sucked into the filter cartridge (6) through the external pipe and the No. 1 hole (22), and the filtration is completed through the filter assembly (12). The filtered clean material solution is input into the pump body upward through the suction hole (13), the connecting sleeve (1) and the suction pipe (4), and is transported to the target storage area; Step 2: When it is necessary to switch the filter assembly (12), the rotating assembly (8) is started, and the rotating assembly (8) drives the distribution assembly (5) to rotate, so that the filter cartridge (6) containing the clean filter assembly (12) is rotated to align with the suction hole (13), and a new round of suction filtration is performed to complete the rapid switching. When it is necessary to flush the filter assembly (12), the filter cartridge (6) containing the clogged and dirty filter assembly (12) is rotated to align with the second hole (23). At this time, the top of the filter cartridge (6) is aligned with the flushing assembly (7), and the external flushing water is passed into the flushing assembly (7), and the solenoid valve (73) is kept intermittently opened and closed, so that the water entering the process is discharged. The flushing water in the filter cartridge (6) intermittently flushes the filter assembly (12). In the reverse flushing state, the water flow penetrates the filter membrane (123) and acts on the top of the filter screen (122), pushing the blockage in the reverse direction. The blockage follows the flushing water and flows away through the No. 2 hole (23), completing the flushing. During intermittent flushing, as the flushing water flow pressure acts on the filter assembly (12), the movable tube (121) of the filter assembly (12) is pushed downward and hits the No. 2 ring (63), and the spring (124) is stretched. After the water flow is turned off, the spring (124) pulls the movable tube (121) upward to reset, so that the filter assembly (12) repeatedly vibrates up and down, and the blockage is gradually disengaged and falls out. Step 3: When filtering, the heating tube (25) is started, and the air supply part (9) is started, and the slow air volume enters the ring cavity (24), takes away part of the heat, and is input into the heating cavity (64) upward along the first arc groove (26) through the ring groove (55) and the second arc groove (54). The temperature of the material solution in the filter cartridge (6) rises and the fluidity increases. After heat exchange, the hot air flows out through the air outlet hole (65), completing the auxiliary filtering.

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