A device and method for preparing screen printing ink for backlight circuit board

Abstract

The invention discloses a device and method for preparing silk-screen ink for backlight circuit boards, and relates to the technical field of ink preparation. The device comprises a stirring shell, a stirring component, a cleaning inner ring and a cleaning outer ring. The stirring component comprises a driving drum, a sleeve shaft, a ring body, a movable plate, a rotating block and a stirring paddle. When stirring the ink, the stirring paddle can change its deflection angle and deflection direction through the driving of the rotating block, and then mix and stir the ink up and down to ensure that each component of the ink can be mixed evenly. Different stirring intensities can be achieved according to the different viscosities of the ink. The movable plate can drive the rotating block to slide, and after the stirring is completed, the ink on the stirring paddle is scraped off, the ink adhered to the ring body can be scraped off by the cleaning inner ring, and the ink adhered to the stirring shell and the movable plate can be scraped off by the cleaning outer ring. After completing one stirring work, only the cleaning inner ring and the cleaning outer ring need to be cleaned to carry out the next stirring work, thereby improving the preparation rate of the ink.

Description

Technical Field

[0001] The invention relates to the technical field of ink preparation, in particular to a device and method for preparing screen printing ink for a backlight circuit board. Background Art

[0002] Backlight circuit board screen printing ink is a kind of ink specially used for backlight circuit board screen printing process. It plays a vital role in the manufacture of electronic products. The preparation process of this kind of ink includes multiple links, including raw material selection, formula design, mixing and stirring, and filtering.

[0003] Among them, the mixing and stirring of the ink has a crucial influence on the final color of the ink. When the existing stirring mechanism is stirring, due to the viscosity of the ink itself, some components of the ink will adhere to the wall of the stirring barrel during the stirring process, resulting in uneven stirring. In addition, due to different ink formulas and different selected raw materials, their viscosities are also different. A single stirring method cannot ensure that the ink is completely stirred evenly, and the ink needs to be stirred up and down during the stirring process to ensure that the ink is fully mixed. In the process of discharging the ink from the stirring chamber after the ink is stirred, due to the viscosity of the ink, the ink is easy to adhere to the stirring device. When the next stirring work is performed, the stirring device needs to be cleaned before stirring, which is extremely troublesome and time-consuming, thereby slowing down the production rate of the ink.

[0004] Therefore, it is necessary to provide a device and method for preparing screen printing ink for a backlight circuit board to solve the problems raised in the above background technology. Summary of the invention

[0005] To achieve the above object, the present invention provides the following technical solution: a device for preparing screen printing ink for a backlight circuit board, comprising a stirring shell, a stirring component, a cleaning inner ring, a cleaning outer ring and a sealing mechanism, wherein the stirring component is rotatably arranged in the stirring shell, the sealing mechanism is fixedly arranged at the bottom of the stirring shell, and a feeding port is arranged at the top of the stirring shell;

[0006] The stirring assembly comprises a driving drum, a sleeve shaft and a stirring mechanism, wherein the driving drum is rotatably arranged on the stirring shell and driven by a motor, the sleeve shaft is rotatably arranged inside the driving drum, a plurality of support plates 1 are symmetrically arranged on the driving drum along the vertical direction, a plurality of support plates 2 are symmetrically arranged on the sleeve shaft along the vertical direction, a plurality of stirring mechanisms are alternately rotatably connected and respectively fixedly arranged on the support plate 1 and the support plate 2, and a plurality of openings for the support plate 2 to slide are opened on the driving drum;

[0007] The stirring mechanism comprises a ring body, a movable plate, a rotating block and a stirring paddle, wherein the ring body is provided with two, a movable plate is slidably arranged between the two ring bodies, the movable plate is an arc-shaped plate, a rotating block is rotatably arranged in the movable plate, the output surface of the rotating block is the same arc-shaped surface as the movable plate, a stirring paddle is slidably arranged in the rotating block, a rubber plate is fixedly arranged at the output end of the stirring paddle, the output surface of the rubber plate is the same arc-shaped surface as the movable plate, and a hydraulic rod three is fixedly arranged on the ring body, and the output end of the hydraulic rod three is connected to the stirring paddle;

[0008] The cleaning inner ring is slidably arranged on the stirring outer shell and driven by hydraulic rod 1, and the inner diameter of the cleaning inner ring is the same as the outer diameter of the ring body. The cleaning outer ring is slidably arranged on the stirring outer shell and driven by hydraulic rod 2, and a scraping groove with the same shape as the movable plate is opened on the inner side of the cleaning outer ring.

[0009] Preferably, two blocks 1 are provided on the top of the movable plate for sliding through a spring 1, and a V-shaped inclined surface is provided at the output end of the block 1, two slots are provided at the bottom of the movable plate, and the movable plates in two adjacent stirring mechanisms can engage with the slots through the block 1.

[0010] Preferably, the movable plate is provided with an arc-shaped groove 1, and an annular hydraulic chamber 1 is provided in the arc-shaped groove 1;

[0011] A sliding block is fixedly provided on the rotating block, an annular hydraulic rod 1 is fixedly provided on the sliding block, the sliding block slides along the arc groove 1, and the annular hydraulic rod 1 slides along the annular hydraulic chamber 1 in a sealed manner.

[0012] Preferably, a fixing plate is fixedly provided on the top of the stirring shell, two limiting grooves are symmetrically provided on the fixing plate, and a receiving cavity for receiving the cleaning inner ring and the cleaning outer ring is also provided at the bottom of the fixing plate;

[0013] A driving plate 1 is rotatably arranged on the top of the fixing plate, two arc grooves 2 are symmetrically arranged on the driving plate 1, a driving rod is slidably arranged in the arc grooves 2, and a bayonet is arranged at the bottom of the driving rod.

[0014] Preferably, a connecting rod is slidably provided on the movable plate near the fixed plate through a second spring, a guide rod 1 is fixedly provided on the connecting rod, the connecting rod can be inserted into the bayonet, and a groove for sliding the connecting rod is provided on the fixed plate;

[0015] A guide groove is provided on the rotating block rotatably arranged in the fixed plate, a guide block is arranged in the guide groove, the guide rod 1 slides along the guide groove, and the guide block can push the guide rod 1 to slide.

[0016] Preferably, the sealing mechanism includes a sealing seat, a sealing plate and a second driving plate, wherein the sealing seat is fixedly arranged at the bottom of the stirring shell, a discharge port is provided on the sealing seat, a sealing groove is provided in the sealing seat, six sealing plates are provided in the sealing groove in a circular rotation manner, the sealing plate is triangular in shape, and the three sides of the sealing plate are all arc-shaped sides with the same radius as the discharge port, a second guide rod is fixedly arranged on the sealing plate, the second driving plate is rotatably arranged in the sealing groove, six arc-shaped grooves three are provided in a circular manner on the second driving plate, and the second guide rod slides along the arc-shaped groove three.

[0017] Preferably, an arc-shaped groove four is provided on the opening, an annular hydraulic chamber two is provided in the arc-shaped groove four, a clamping block two is fixedly provided on the support plate two, an annular hydraulic rod two is fixedly provided on the clamping block two, the clamping block two slides along the arc-shaped groove four, and the annular hydraulic rod two slides sealingly along the annular hydraulic chamber two.

[0018] A method for preparing a backlight circuit board screen printing ink comprises the following steps:

[0019] S1. Deliver the components of the ink from the feed port to the inside of the stirring housing, drive the sleeve shaft to rotate so that the stirring paddles on the plurality of stirring mechanisms are arranged in a cross shape, and drive the rotating block to rotate so that the stirring paddles are in an inclined state;

[0020] S2, using a motor to drive the driving drum to rotate, so that the multiple stirring mechanisms rotate to stir the various components of the ink, and during the stirring process, the rotating block is driven to rotate, so that the deflection direction and angle of the stirring paddle are changed, so that the various components of the ink are fully stirred;

[0021] S3, using the hydraulic rod 3 to drive the stirring paddle to slide, so that the rubber plate is pressed against the stirring shell and elastically deforms to fit on the inner wall of the stirring shell, thereby scraping off the ink components adhering to the stirring shell;

[0022] S4, after the stirring is completed, the sleeve shaft is driven to rotate the plurality of stirring mechanisms to the same vertical direction, so that the plurality of movable plates are engaged with each other, and then the driving drum is driven to rotate so that the driving rod is aligned with the connecting rod, and the rotating block is driven to rotate so that the stirring paddle is rotated to a vertical position and the guide block drives the guide rod to slide, so that the connecting rod is engaged with the bayonet;

[0023] S5, open the sealing mechanism to discharge the ink from the discharge port, and use the hydraulic rod 1 to drive the cleaning inner ring to slide, scrape off the ink adhered to the ring body and part of the movable plate, and when the cleaning inner ring slides to the discharge port, use the hydraulic rod 3 to drive the stirring paddle to slide, so that the rubber plate is separated from the inner wall of the stirring shell, and drive the driving plate 1 to rotate, so that the guide rod 1 slides along the limiting groove, and drives the movable plate and the rotating block to slide along the stirring paddle, and scrapes off the ink adhered to the stirring paddle;

[0024] S6. After the movable plate slides to the output end of the rubber plate and fits with the outer side of the rubber plate, the second hydraulic rod is used to drive the cleaning outer ring to slide, so as to scrape off the ink adhering to the stirring shell, and the scraping groove is used to scrape off the ink on the movable plate, the rotating block and the rubber plate, so that the inside of the stirring shell is kept clean, and then the ink is collected and processed to obtain the finished ink.

[0025] Compared with the prior art, the present invention provides a device and method for preparing screen printing ink for backlight circuit boards, which has the following beneficial effects:

[0026] The present invention drives the stirring paddle to rotate by rotating the rotating block, so that when the stirring paddle stirs the ink, its deflection angle and deflection direction can be changed, and then the ink is mixed and stirred up and down, ensuring that the various components of the ink can be mixed evenly, and a rubber plate is arranged at the output end of the stirring paddle, and the rubber plate is driven by the hydraulic rod to press against the inner wall of the stirring shell, so that the stirring paddle can scrape off the ink components adhered to the inner wall of the stirring shell during the stirring process, thereby ensuring that the various components of the ink are mixed evenly, and the deflection angle of the stirring paddle is adjusted according to the viscosity of the various components of the ink, and then different intensities of stirring are achieved according to different viscosities of the ink. In addition, the movable plate can drive the rotating block to slide, and then the ink on the stirring paddle is scraped off after the stirring is completed, the cleaning inner ring can be used to scrape off the ink adhered to the ring body, and the cleaning outer ring can be used to scrape off the ink adhered to the stirring shell and the movable plate, so that after completing one stirring work, the stirring shell and the stirring component can be kept in a clean state, and then only the cleaning inner ring and the cleaning outer ring need to be cleaned to carry out the next stirring work, further improving the preparation rate of the ink. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the stirring assembly in the present invention;

[0029] Figure 3 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0030] Figure 4 is a schematic diagram of the stirring mechanism in the present invention;

[0031] Figure 5 It is a structural schematic diagram of the movable plate in the present invention;

[0032] Figure 6 It is a structural schematic diagram of an annular hydraulic chamber 1 and an annular hydraulic rod 1 in the present invention;

[0033] Figure 7 for Figure 4 A magnified schematic diagram of the structure of the middle B section;

[0034] Figure 8 It is a structural schematic diagram of the annular hydraulic chamber 2 and the annular hydraulic rod 2 in the present invention;

[0035] Fig. 9 It is a schematic diagram of the structure of the cleaning outer ring in the present invention;

[0036] In the figure: 1, stirring shell; 11, hydraulic rod 1; 12, hydraulic rod 2; 13, fixed plate; 131, limit groove; 14, driving plate 1; 141, arc groove 2; 142, driving rod; 2, stirring assembly; 21, driving drum; 211, support plate 1; 212, arc groove 4; 213, annular hydraulic chamber 2; 22, sleeve shaft; 221, support plate 2; 222, clamping block 2; 223, annular hydraulic rod 2; 23, ring body; 231, hydraulic rod 3; 24, moving plate; 241, clamping block 1; 24 2. Slot; 243. Arc groove one; 244. Annular hydraulic chamber one; 245. Connecting rod; 246. Guide rod one; 25. Rotating block; 251. Sliding block; 252. Annular hydraulic rod one; 253. Guide groove; 254. Guide block; 26. Agitator paddle; 27. Rubber sheet; 3. Clean inner ring; 4. Clean outer ring; 41. Scraping groove; 5. Sealing mechanism; 51. Sealing seat; 511. Sealing groove; 52. Sealing plate; 521. Guide rod two; 53. Drive plate two; 531. Arc groove three; 6. Feed inlet. DETAILED DESCRIPTION

[0037] See also Figures 1 to 9 In an embodiment of the present invention, a backlight circuit board screen printing ink preparation device comprises a stirring shell 1, a stirring component 2, a cleaning inner ring 3, a cleaning outer ring 4 and a sealing mechanism 5, wherein the stirring component 2 is rotatably arranged in the stirring shell 1, the sealing mechanism 5 is fixedly arranged at the bottom of the stirring shell 1, and a feeding port 6 is arranged at the top of the stirring shell 1;

[0038] The stirring assembly 2 includes a driving drum 21, a sleeve shaft 22 and a stirring mechanism, wherein the driving drum 21 is rotatably arranged on the stirring shell 1 and driven by a motor, the sleeve shaft 22 is rotatably arranged inside the driving drum 21, a plurality of support plates 211 are symmetrically arranged along the vertical direction on the driving drum 21, a plurality of support plates 221 are symmetrically arranged along the vertical direction on the sleeve shaft 22, a plurality of stirring mechanisms are alternately rotatably connected and are respectively fixedly arranged on the support plate 1 211 and the support plate 2 221, and a plurality of openings are opened on the driving drum 21 for the support plate 2 221 to slide.

[0039] The stirring mechanism includes a ring body 23, a movable plate 24, a rotating block 25 and a stirring paddle 26, wherein the ring body 23 is configured with two, a movable plate 24 is slidably arranged between the two ring bodies 23, the movable plate 24 is an arc-shaped plate, a rotating block 25 is rotatably arranged in the movable plate 24, the output surface of the rotating block 25 is the same arc-shaped surface as the movable plate 24, a stirring paddle 26 is slidably arranged in the rotating block 25, a rubber plate 27 is fixedly arranged at the output end of the stirring paddle 26, the output surface of the rubber plate 27 is the same arc-shaped surface as the movable plate 24, and a hydraulic rod three 231 is fixedly arranged on the ring body 23, and the output end of the hydraulic rod three 231 is connected to the stirring paddle 26;

[0040] The cleaning inner ring 3 is slidably arranged on the stirring outer shell 1 and driven by a hydraulic rod 11, and the inner diameter of the cleaning inner ring 3 is the same as the outer diameter of the ring body 23. The cleaning outer ring 4 is slidably arranged on the stirring outer shell 1 and driven by a hydraulic rod 2 12, and a scraping groove 41 having the same shape as the movable plate 24 is provided on the inner side of the cleaning outer ring 4.

[0041] A fixing plate 13 is fixedly provided on the top of the stirring shell 1, and two limiting grooves 131 are symmetrically provided on the fixing plate 13. A receiving cavity for receiving the cleaning inner ring 3 and the cleaning outer ring 4 is also provided at the bottom of the fixing plate 13;

[0042] A driving plate 14 is rotatably arranged on the top of the fixing plate 13. Two arc grooves 141 are symmetrically arranged on the driving plate 14. A driving rod 142 is slidably arranged in the arc groove 141. A bayonet is arranged at the bottom of the driving rod 142.

[0043] A connecting rod 245 is slidably provided on the movable plate 24 near the fixed plate 13 through a second spring, a guide rod 1 246 is fixedly provided on the connecting rod 245, the connecting rod 245 can be inserted into the bayonet, and a groove for the connecting rod 245 to slide is provided on the fixed plate 13;

[0044] A guide groove 253 is provided on the rotating block 25 rotatably disposed in the fixed plate 13 , a guide block 254 is disposed in the guide groove 253 , the guide rod 1 246 slides along the guide groove 253 , and the guide block 254 can push the guide rod 1 246 to slide.

[0045] It should be noted that the plurality of stirring mechanisms are connected by rotating alternately so that the stirring mechanisms are distributed throughout the stirring shell 1 in the vertical direction, and then the stirring mechanisms can be used to fully stir the ink components in various parts of the stirring shell 1, and the stirring paddle 26 can rotate under the action of the rotating block 25, so that the deflection direction and angle of the stirring paddle 26 can change, that is, when the stirring paddle 26 rotates in the same direction, after the deflection direction of the stirring paddle 26 changes, the stirring direction of the ink is also changed, that is, the upward and downward mixing and stirring of the ink is completed, so that the various components of the ink can be mixed evenly, and according to the different viscosities of different components of the ink The deflection stirring of the stirring paddle 26 can be adjusted, that is, stirring work of different intensities is performed according to the viscosity of the ink, to ensure that the ink transported to the stirring shell 1 can be stirred evenly. In addition, the rubber plate 27 is arranged at the output end of the stirring paddle 26, and the stirring paddle 26 is driven to slide by the hydraulic rod 3 231, so that the rubber plate 27 can be pressed against the inner wall of the stirring shell 1, and the rubber plate 27 can be elastically deformed after being closely attached to the stirring shell 1, and then completely attached to the inner wall of the stirring shell 1, so that the stirring paddle 26 can scrape off the ink components adhering to the inner wall of the stirring shell 1 during the stirring process, further ensuring that all components of the ink can be mixed evenly.

[0046] In this embodiment, Figure 4 and Figure 5 The top of the movable plate 24 is provided with two blocks 241 slidingly through a spring, and the output end of the block 241 is provided with a V-shaped inclined surface, and the bottom of the movable plate 24 is provided with two slots 242, and the movable plates 24 in two adjacent stirring mechanisms can be engaged with the slots 242 through the block 241.

[0047] Specifically, a V-shaped inclined surface is provided on the block 241, so that when the block 241 is inserted into the slot 242, that is, after two adjacent movable plates 24 are engaged together, the two movable plates 24 can rotate to make the block 241 disengage from the slot 242, and when the driving plate 14 is used to drive the driving rod 142 to slide along the limiting groove 131 and drive the movable plates 24 to slide, the plurality of movable plates 24 can be engaged together to form a whole and slide synchronously, so that the rotating block 25 can scrape the ink on the stirring paddle 26, and when moving to the output end of the rubber plate 27, the cleaning outer ring 4 can be used to scrape the ink on the movable plate 24, the rotating block 25 and the rubber plate 27, so as to ensure that the stirring component 2 can maintain a clean state after completing a stirring work, and the next stirring work can be carried out after only cleaning the cleaning inner ring 3 and the cleaning outer ring 4, thereby improving the stirring rate and production rate of the ink.

[0048] In this embodiment, the movable plate 24 is provided with an arc-shaped groove 243, and an annular hydraulic chamber 244 is provided in the arc-shaped groove 243;

[0049] The rotating block 25 is fixedly provided with a slider 251 , and the slider 251 is fixedly provided with an annular hydraulic rod 252 . The slider 251 slides along the arc groove 243 , and the annular hydraulic rod 252 slides along the annular hydraulic chamber 244 in a sealed manner.

[0050] In this embodiment, the sealing mechanism 5 includes a sealing seat 51, a sealing plate 52 and a second driving plate 53, wherein the sealing seat 51 is fixedly arranged at the bottom of the stirring shell 1, a discharge port is provided on the sealing seat 51, a sealing groove 511 is provided in the sealing seat 51, six sealing plates 52 are provided in the sealing groove 511 in a circular rotation, the sealing plate 52 is triangular, and the three sides of the sealing plate 52 are all arc sides with the same radius as the discharge port, a guide rod 2 521 is fixedly arranged on the sealing plate 52, the second driving plate 53 is rotatably arranged in the sealing groove 511, six arc grooves 3 531 are provided in a circular manner on the second driving plate 53, and the guide rod 2 521 slides along the arc groove 3 531;

[0051] In addition, the driving force for the second driving plate 53 to rotate along the sealing groove 511 comes from an external driving mechanism, such as a gear ring mechanism or a worm gear mechanism;

[0052] During implementation, after the ink stirring is completed, the driving plate 2 53 is used to drive the six sealing plates 52 to rotate so that the discharge port is opened. During this process, the ink on the sealing plate 52 can be scraped off by the sealing seat 51, and when the six sealing plates 52 are rotating, two adjacent sealing plates 52 can be tightly attached together, that is, the sealing groove 511 always remains in a closed state, and after the sealing plate 52 is fully opened, the inner arc edge of the sealing plate 52 can fit with the discharge port, further facilitating the cleaning outer ring 4 to scrape off the ink on the discharge port and the inner side of the sealing plate 52, that is, there is no need to clean the entire stirring device before the next ink stirring, thereby effectively improving the ink production rate.

[0053] In this embodiment, an arc-shaped groove 4 212 is provided on the opening, an annular hydraulic chamber 213 is provided in the arc-shaped groove 4 212, a clamping block 222 is fixedly provided on the support plate 221, an annular hydraulic rod 223 is fixedly provided on the clamping block 222, the clamping block 222 slides along the arc-shaped groove 4 212, and the annular hydraulic rod 223 slides along the annular hydraulic chamber 213 in a sealed manner.

[0054] During implementation, the annular hydraulic rod 223 is driven by hydraulic pressure to slide along the annular hydraulic chamber 213 and push the support plate 221 to rotate, that is, the sleeve shaft 22 and the stirring mechanism are driven to rotate, and then the plurality of stirring paddles 26 are adjusted to be arranged in a cross shape or in a straight line along the vertical direction, that is, the ink is stirred in a cross shape, and the cleaning inner ring 3 and the cleaning outer ring 4 are conveniently cleaned in a straight line;

[0055] It should be noted that the rotation of the rotating block 25, the sliding of the stirring paddle 26 and the rotation of the sleeve shaft 22 are all driven by hydraulic pressure. During the driving process, the hydraulic delivery pipeline can be connected through a rotating joint to ensure that the delivery of hydraulic pressure is not affected by the rotation of the driving drum 21. In addition, multiple hydraulic delivery channels can be opened inside the driving drum 21, and multiple hydraulic rings are fixedly arranged on the driving drum 21. Multiple sleeve rings are fixedly arranged on the stirring shell 1. The multiple sleeve rings are respectively sealed and slidably connected to the multiple hydraulic rings, and a hydraulic cavity is formed between the sleeve rings and the hydraulic rings. The hydraulic cavity is connected to the hydraulic delivery channel, and the hydraulic delivery pipeline is connected to the sleeve, so that the delivery of hydraulic pressure is not affected by the rotation of the driving drum 21.

[0056] A method for preparing a backlight circuit board screen printing ink comprises the following steps:

[0057] S1, delivering each component of the ink from the feed port 6 to the inside of the stirring housing 1, driving the sleeve shaft 22 to rotate so that the stirring paddles 26 on the plurality of stirring mechanisms are arranged in a cross shape, and driving the rotating block 25 to rotate so that the stirring paddles 26 are in an inclined state;

[0058] S2, using a motor to drive the driving drum 21 to rotate, so that the multiple stirring mechanisms rotate to stir the various components of the ink, and during the stirring process, the rotating block 25 is driven to rotate, so that the deflection direction and angle of the stirring paddle 26 are changed, so that the various components of the ink are fully stirred;

[0059] That is, the stirring paddle 26 on the driving drum 21 and the stirring paddle 26 on the sleeve shaft 22 are adjusted to be perpendicular to each other, and the tilting state of the stirring paddle 26 is controlled by the rotating block 25, so that the stirring paddle 26 can stir the ink upward and downward during the stirring process, thereby ensuring that the various components of the ink can be completely mixed and uniform.

[0060] S3, using the hydraulic rod 3 231 to drive the stirring paddle 26 to slide, so that the rubber plate 27 is pressed against the stirring shell 1, and elastically deforms to fit on the inner wall of the stirring shell 1, so as to scrape off the ink components adhering to the stirring shell 1;

[0061] S4, after the stirring is completed, the sleeve shaft 22 is driven to rotate to rotate the multiple stirring mechanisms to the same vertical direction, so that the multiple movable plates 24 are engaged with each other, and then the driving drum 21 is driven to rotate so that the driving rod 142 is aligned with the connecting rod 245, and the rotating block 25 is driven to rotate so that the stirring paddle 26 rotates to a vertical position and the guide block 254 drives the guide rod 1 246 to slide, so that the connecting rod 245 is engaged in the bayonet;

[0062] That is to say, at this time, the plurality of stirring paddles 26 are all in a vertical state and arranged in a straight line, so that the cleaning inner ring 3 can slide along the ring body 23 to the bottom of the stirring outer shell 1;

[0063] S5, open the sealing mechanism 5 to discharge the ink from the discharge port, and use the hydraulic rod 11 to drive the cleaning inner ring 3 to slide, and scrape off the ink adhering to the ring body 23 and part of the movable plate 24. When the cleaning inner ring 3 slides to the discharge port, use the hydraulic rod 3 231 to drive the stirring paddle 26 to slide, so that the rubber plate 27 is separated from the inner wall of the stirring shell 1, and drive the driving plate 14 to rotate, so that the guide rod 246 slides along the limiting groove 131, and drives the movable plate 24 and the rotating block 25 to slide along the stirring paddle 26, and scrapes off the ink adhering to the stirring paddle 26;

[0064] S6. After the movable plate 24 slides to the output end of the rubber plate 27 and fits with the outer side of the rubber plate 27, the hydraulic rod 2 12 is used to drive the cleaning outer ring 4 to slide, and the ink adhering to the stirring shell 1 is scraped off, and the scraping groove 41 is used to scrape off the ink on the movable plate 24, the rotating block 25 and the rubber plate 27, so that the inside of the stirring shell 1 remains clean, and then the ink is collected and processed to obtain the finished ink, and after the cleaning inner ring 3 and the cleaning outer ring 4 scrape off the ink, the cleaning inner ring 3 and the cleaning outer ring 4 are cleaned, and then the movable plate 24 is reset, and then the stirring paddle 26 is rotated to an inclined position, and the guide rod 1 246 is separated from the guide block 254, and the connecting rod 245 is separated from the driving rod 142 under the action of the spring 2, and then the sleeve shaft 22 is rotated so that the multiple stirring paddles 26 are arranged in a cross shape, and then the components of the ink are added again for stirring.

[0065] The rotation of the driving plate 14 can drive the driving rod 142 to slide along the limiting groove 131, and the sliding distance of the driving rod 142 is limited, that is, the movable plate 24 can only slide to be sealed with the ring body 23 or slide to the output end of the rubber plate 27 to be in contact with the output surface of the rubber plate 27, that is, the ink is stirred when it is in contact with the ring body 23, and the ink will not penetrate into the inside of the ring body 23. When it is in contact with the rubber plate 27, it can be just stuck in the scraping groove 41, so as to facilitate the cleaning of the outer ring 4 and scrape off the ink on its surface to keep it clean.

[0066] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for preparing screen printing ink for backlight circuit board, characterized in that: The stirring device comprises a stirring shell (1), a stirring component (2), a cleaning inner ring (3), a cleaning outer ring (4) and a sealing mechanism (5), wherein the stirring component (2) is rotatably arranged in the stirring shell (1), the sealing mechanism (5) is fixedly arranged at the bottom of the stirring shell (1), and a feed port (6) is arranged at the top of the stirring shell (1); The stirring assembly (2) comprises a driving drum (21), a sleeve (22) and a stirring mechanism, wherein the driving drum (21) is rotatably arranged on the stirring shell (1) and driven by a motor, the sleeve (22) is rotatably arranged inside the driving drum (21), a plurality of first support plates (211) are symmetrically arranged on the driving drum (21) along the vertical direction, a plurality of second support plates (221) are symmetrically arranged on the sleeve (22) along the vertical direction, a plurality of stirring mechanisms are alternately rotatably connected and are respectively fixedly arranged on the first support plate (211) and the second support plate (221), and a plurality of openings for the second support plate (221) to slide are opened on the driving drum (21); The stirring mechanism comprises a ring body (23), a movable plate (24), a rotating block (25) and a stirring paddle (26), wherein two ring bodies (23) are provided, a movable plate (24) is slidably arranged between the two ring bodies (23), the movable plate (24) is an arc-shaped plate, a rotating block (25) is rotatably arranged in the movable plate (24), an output surface of the rotating block (25) is the same arc-shaped surface as the movable plate (24), a stirring paddle (26) is slidably arranged in the rotating block (25), a rubber plate (27) is fixedly arranged at the output end of the stirring paddle (26), the output surface of the rubber plate (27) is the same arc-shaped surface as the movable plate (24), and a hydraulic rod three (231) is fixedly arranged on the ring body (23), and the output end of the hydraulic rod three (231) is connected to the stirring paddle (26); The cleaning inner ring (3) is slidably disposed on the stirring outer shell (1) and is driven by a hydraulic rod 1 (11), and the inner diameter of the cleaning inner ring (3) is the same as the outer diameter of the ring body (23). The cleaning outer ring (4) is slidably disposed on the stirring outer shell (1) and is driven by a hydraulic rod 2 (12), and a scraping groove (41) having the same shape as the movable plate (24) is provided on the inner side of the cleaning outer ring (4).

2. The device for preparing screen printing ink for backlight circuit board according to claim 1, characterized in that: The top of the movable plate (24) is provided with two clamping blocks (241) for sliding movement via a spring, and an output end of the clamping block (241) is provided with a V-shaped inclined surface, and the bottom of the movable plate (24) is provided with two clamping grooves (242), and the movable plates (24) in two adjacent stirring mechanisms can be clamped with the clamping grooves (242) via the clamping blocks (241).

3. The device for preparing screen printing ink for backlight circuit board according to claim 1, characterized in that: The movable plate (24) is provided with an arc-shaped groove (243), and an annular hydraulic chamber (244) is provided in the arc-shaped groove (243); A slider (251) is fixedly provided on the rotating block (25), and an annular hydraulic rod (252) is fixedly provided on the slider (251). The slider (251) slides along the arc groove (243), and the annular hydraulic rod (252) seals and slides along the annular hydraulic chamber (244).

4. The device for preparing screen printing ink for backlight circuit board according to claim 1, characterized in that: A fixing plate (13) is fixedly arranged on the top of the stirring shell (1), two limiting grooves (131) are symmetrically provided on the fixing plate (13), and a receiving cavity for receiving the cleaning inner ring (3) and the cleaning outer ring (4) is also provided at the bottom of the fixing plate (13); A driving plate 1 (14) is rotatably arranged on the top of the fixing plate (13), and two arc-shaped grooves 2 (141) are symmetrically provided on the driving plate 1 (14), a driving rod (142) is slidably arranged in the arc-shaped grooves 2 (141), and a bayonet is provided at the bottom of the driving rod (142).

5. The device for preparing screen printing ink for backlight circuit board according to claim 4, characterized in that: A connecting rod (245) is slidably provided on the movable plate (24) on one side close to the fixed plate (13) via a second spring, a guide rod (246) is fixedly provided on the connecting rod (245), the connecting rod (245) can be inserted into the bayonet, and a groove for sliding the connecting rod (245) is provided on the fixed plate (13); A guide groove (253) is provided on the rotating block (25) rotatably arranged in the fixed plate (13), a guide block (254) is arranged in the guide groove (253), the guide rod 1 (246) slides along the guide groove (253), and the guide block (254) can push the guide rod 1 (246) to slide.

6. The device for preparing screen printing ink for backlight circuit board according to claim 1, characterized in that: The sealing mechanism (5) comprises a sealing seat (51), a sealing plate (52) and a second driving plate (53), wherein the sealing seat (51) is fixedly arranged at the bottom of the stirring shell (1), a discharge port is provided on the sealing seat (51), a sealing groove (511) is provided in the sealing seat (51), six sealing plates (52) are rotatably arranged in the sealing groove (511), the sealing plate (52) is triangular in shape, and three sides of the sealing plate (52) are arc-shaped sides with the same radius as the discharge port, a second guide rod (521) is fixedly arranged on the sealing plate (52), the second driving plate (53) is rotatably arranged in the sealing groove (511), six arc-shaped third grooves (531) are circumferentially provided on the second driving plate (53), and the second guide rod (521) slides along the arc-shaped third grooves (531).

7. The device for preparing screen printing ink for backlight circuit board according to claim 1, characterized in that: The opening is provided with an arc-shaped groove four (212), an annular hydraulic chamber two (213) is provided in the arc-shaped groove four (212), a clamping block two (222) is fixedly provided on the support plate two (221), an annular hydraulic rod two (223) is fixedly provided on the clamping block two (222), the clamping block two (222) slides along the arc-shaped groove four (212), and the annular hydraulic rod two (223) slides in a sealed manner along the annular hydraulic chamber two (213).

8. A method for preparing screen printing ink for a backlight circuit board, using the device for preparing screen printing ink for a backlight circuit board as claimed in claim 5, characterized in that: The steps include: S1, conveying each component of the ink from the feed port (6) into the interior of the stirring housing (1), driving the sleeve shaft (22) to rotate so that the stirring paddles (26) on the plurality of stirring mechanisms are arranged in a cross shape, and driving the rotating block (25) to rotate so that the stirring paddles (26) are in an inclined state; S2, using a motor to drive the driving drum (21) to rotate, so that the plurality of stirring mechanisms rotate to stir the various components of the ink, and during the stirring process, the rotating block (25) is driven to rotate, so that the deflection direction and angle of the stirring paddle (26) are changed, so that the various components of the ink are fully stirred; S3, using the hydraulic rod three (231) to drive the stirring paddle (26) to slide, so that the rubber plate (27) is pressed against the stirring shell (1) and elastically deforms to fit the inner wall of the stirring shell (1), thereby scraping off the ink components adhering to the stirring shell (1); S4, after the stirring is completed, the sleeve shaft (22) is driven to rotate so that the plurality of stirring mechanisms are rotated to the same vertical direction, so that the plurality of movable plates (24) are engaged with each other, and then the driving drum (21) is driven to rotate so that the driving rod (142) is aligned with the connecting rod (245), and the rotating block (25) is driven to rotate so that the stirring paddle (26) is rotated to a vertical position and the guide block (254) drives the guide rod 1 (246) to slide, so that the connecting rod (245) is engaged in the bayonet; S5, opening the sealing mechanism (5) to discharge the ink from the discharge port, and using the hydraulic rod one (11) to drive the cleaning inner ring (3) to slide, so as to scrape off the ink adhering to the ring body (23) and part of the movable plate (24); when the cleaning inner ring (3) slides to the discharge port, using the hydraulic rod three (231) to drive the stirring paddle (26) to slide, so that the rubber plate (27) is separated from the inner wall of the stirring shell (1), and driving the driving plate one (14) to rotate, so that the guide rod one (246) slides along the limiting groove (131), and drives the movable plate (24) and the rotating block (25) to slide along the stirring paddle (26), so as to scrape off the ink adhering to the stirring paddle (26); S6. After the movable plate (24) slides to the output end of the rubber plate (27) and fits with the outer side of the rubber plate (27), the second hydraulic rod (12) is used to drive the cleaning outer ring (4) to slide, so as to scrape off the ink adhering to the stirring shell (1), and the scraping groove (41) is used to scrape off the ink on the movable plate (24), the rotating block (25) and the rubber plate (27), so that the inside of the stirring shell (1) remains clean. The ink is then collected and processed to obtain finished ink.

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