Pretreatment device for processing PDLC (Polymer Dispersed Liquid Crystal) dimming film

Abstract

The invention discloses a pretreatment device for PDLC (Polymer Dispersed Liquid Crystal) dimming film processing, which comprises a mixing box main body, a rotating column is rotatably connected in the mixing box main body, a driving motor for driving the rotating column to rotate is fixedly connected to the top wall of the mixing box main body, two feeding hoppers are fixedly mounted at the top of the mixing box main body, and a filtering assembly is mounted in the mixing box; a mounting shaft is fixedly connected to the peripheral side of the rotating column, stirring blades are rotationally connected to the end, away from the rotating column, of the mounting shaft, and a rotating assembly for driving the stirring blades to rotate is mounted in the rotating column; a scraping plate assembly is mounted in the mixing box main body and is in contact with the inner wall of the mixing box. The device is simple in structure and convenient to use, raw materials can be fully stirred, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of PDLC dimming film pretreatment, and in particular to a pretreatment device for PDLC dimming film processing. Background Art

[0002] PDLC dimming film, or polymer dispersed liquid crystal dimming film, is a film that can achieve the transition between transparent and opaque states through voltage regulation. The working principle of PDLC dimming film is based on the dielectric anisotropy of liquid crystal molecules. When the dimming film is energized, the polymer liquid crystal material in the middle of the film is arranged in order under the action of the electric field, and light can pass through the film, presenting a transparent and colorless state. The main material of PDLC dimming film is a mixture of polyimide and liquid crystal. Before manufacturing PDLC dimming film, these chemical materials need to be mixed in proportion. Existing mixing devices generally only use a rotating shaft to drive a stirring rod to stir the raw materials. The stirring efficiency is low and it takes a long time to stir. At the same time, some materials are easy to adhere to the inner wall of the stirring box, resulting in raw material loss. Therefore, there is an urgent need for a pretreatment device for PDLC dimming film processing that has high stirring efficiency and can scrape the inner wall of the stirring box. Summary of the invention

[0003] The purpose of the present invention is to provide a pre-treatment device for PDLC dimming film processing to solve the problems existing in the above-mentioned prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following scheme: The present invention provides a pretreatment device for PDLC dimming film processing, comprising a mixing box body, a rotating column rotatably connected in the mixing box body, a driving motor for driving the rotating column to rotate is fixedly connected to the top wall of the mixing box body, two feed hoppers are fixedly installed on the top of the mixing box body, a filter assembly is installed in the mixing box, and the filter assembly is arranged corresponding to the feed hopper, an installation shaft is fixedly connected to the circumference of the rotating column, a stirring blade is rotatably connected to the end of the installation shaft away from the rotating column, and a rotating assembly for driving the stirring blade to rotate is installed in the rotating column; a scraper assembly is installed in the mixing box body, and the scraper assembly is arranged in contact with the inner wall of the mixing box.

[0005] Preferably, the rotating assembly includes a receiving groove opened in the rotating column, a fixed column is rotatably connected in the receiving groove, the fixed column passes through the bottom wall of the receiving groove and is fixedly connected to the bottom wall of the mixing box body, a control rod is fixedly connected to the side of the stirring blade close to the rotating column, the control rod passes through the mounting shaft and the end of the control rod is located in the receiving groove, the control rod is rotatably connected to the mounting shaft, a first bevel gear is fixedly connected to one end of the control rod located in the receiving groove, a second bevel gear is fixedly connected to the circumferential side of the fixed column corresponding to the first bevel gear, and the first bevel gear is correspondingly meshed with the second bevel gear.

[0006] Preferably, the scraper assembly includes two sliding sleeves sleeved on the outside of the rotating column, the sliding sleeves are slidably connected to the rotating column along the axial direction thereof, a plurality of mounting plates are fixedly connected to the circumferential side of the sliding sleeve, the mounting plates on the two sliding sleeves are arranged in one-to-one correspondence, and the ends of the two corresponding mounting plates are fixedly connected to the same vertical plate, a sliding groove is provided in the vertical plate, a scraper is slidably connected in the sliding groove, a plurality of compression springs are fixedly connected between one side of the scraper and the bottom wall of the sliding groove, the other side of the scraper is arranged in contact with the side wall of the mixing box body, and a moving component that drives the mounting plate to move up and down is installed on the mounting shaft.

[0007] Preferably, the motion component includes a rotating sleeve which is sleeved on the outside of the mounting shaft and rotatably connected to the mounting shaft, the rotating sleeve is fixedly connected to the stirring blade, a first cam is fixedly connected to the outside of the rotating sleeve, several of the cams are arranged at the same angle, the vertical plate and the first cam are fixedly connected with a sliding seat corresponding to the first cam, and the first cam is arranged in contact with the sliding seat.

[0008] Preferably, the filter assembly includes a filter plate arranged corresponding to the feed hopper and slidably connected to the feed hopper, a plurality of limit columns are fixedly connected to the side of the filter plate away from the rotating column, the limit columns slide through the mixing box body, a moving frame is fixedly connected between the two filter plates, the rotating column is located in the moving frame, a second cam is fixedly connected between the rotating column and the moving frame correspondingly, and the second cam is arranged in contact with the two side walls of the filter plate in contact with the moving frame.

[0009] The present invention discloses the following technical effects: the present invention can preliminarily filter the input materials through the filtering component to avoid excessive impurities in the raw materials during subsequent processing; the rotating component drives the stirring blade to rotate, so that the stirring blade can rotate on the mounting shaft during the rotation of the mounting shaft along with the rotating column, thereby accelerating the stirring of the materials in the mixing box body, thereby improving the stirring efficiency; the scraper component can scrape the materials adhered to the inner wall of the mixing box body to prevent the waste of raw materials. The present invention has a simple structure and is convenient to use, and can fully stir the raw materials to improve the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0011] Figure 1It is a schematic diagram of the structure of the pretreatment device of the present invention; Figure 2 is a schematic diagram of the positions of the second cam and the motion frame; Among them: 1. Mixing box body; 2. Rotating column; 3. Driving motor; 4. Feed hopper; 5. Mounting shaft; 6. Receiving groove; 7. Fixed column; 8. Control rod; 9. First bevel gear; 10. Second bevel gear; 11. Sliding sleeve; 12. Mounting plate; 13. Vertical plate; 14. Slide groove; 15. Scraper; 16. Compression spring; 17. Rotating sleeve; 18. First cam; 19. Sliding seat; 20. Filter plate; 21. Limiting column; 22. Moving frame; 23. Second cam; 24. Stirring blade. DETAILED DESCRIPTION

[0012] 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.

[0013] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] Reference Figure 1-2 The present invention provides a pretreatment device for PDLC dimming film processing, comprising a mixing box body 1, a rotating column 2 is rotatably connected in the mixing box body 1, a driving motor 3 for driving the rotating column 2 to rotate is fixedly connected to the top wall of the mixing box body 1, two feeding hoppers 4 are fixedly installed on the top of the mixing box body 1, a filtering assembly is installed in the mixing box, and the filtering assembly is arranged corresponding to the feeding hopper 4, a mounting shaft 5 is fixedly connected to the peripheral side of the rotating column 2, and a stirring blade 24 is rotatably connected to the end of the mounting shaft 5 away from the rotating column 2, and a rotating assembly for driving the stirring blade 24 to rotate is installed in the rotating column 2; a scraper assembly is installed in the mixing box body 1, and the scraper assembly is arranged in contact with the inner wall of the mixing box. The input materials can be initially filtered through the filtering component to avoid excessive impurities in the raw materials during subsequent processing. The stirring blade 24 is driven to rotate by the rotating component, so that the mounting shaft 5 rotates with the rotating column 2. The stirring blade 24 can rotate on the mounting shaft 5, thereby accelerating the stirring of the materials in the mixing box body 1, thereby improving the stirring efficiency; the scraper 15 component can scrape off the materials adhered to the inner wall of the mixing box body 1 to prevent waste of raw materials.

[0015] A further optimization scheme is that the rotating component includes a receiving groove 6 opened in the rotating column 2, and a fixed column 7 is rotatably connected in the receiving groove 6, and the fixed column 7 passes through the bottom wall of the receiving groove 6 and is fixedly connected to the bottom wall of the mixing box body 1, and the stirring blade 24 is fixedly connected to a control rod 8 on the side close to the rotating column 2, and the control rod 8 passes through the installation shaft 5 and the end of the control rod 8 is located in the receiving groove 6, and the control rod 8 is rotatably connected to the installation shaft 5. The control rod 8 is fixedly connected to a first bevel gear 9 at one end of the control rod 8 located in the receiving groove 6, and a second bevel gear 10 is fixedly connected to the peripheral side of the fixed column 7 corresponding to the first bevel gear 9, and the corresponding first bevel gear 9 is meshed with the second bevel gear 10. When the rotating column 2 drives the mounting shaft 5 to rotate, it drives the control rod 8 to rotate around the fixed column 7. Since the first bevel gear 9 on the control rod 8 is meshed with the second bevel gear 10 on the fixed column 7, the control rod 8 rotates around the fixed column 7, driving the stirring blade 24 to rotate, so that the raw materials in the mixing box body 1 can be fully stirred, thereby improving the stirring efficiency.

[0016] A further optimized solution is that the scraper assembly includes two sliding sleeves 11 sleeved on the outside of the rotating column 2, the sliding sleeves 11 are slidably connected to the rotating column 2 along the axial direction thereof, a plurality of mounting plates 12 are fixedly connected to the peripheral side of the sliding sleeves 11, the mounting plates 12 on the two sliding sleeves 11 are arranged one by one, and the ends of the two corresponding mounting plates 12 are fixedly connected to the same vertical plate 13, a slide groove 14 is opened in the vertical plate 13, a scraper 15 is slidably connected in the slide groove 14, a plurality of compression springs 16 are fixedly connected between one side of the scraper 15 and the bottom wall of the slide groove 14, the other side of the scraper 15 is arranged in contact with the side wall of the mixing box body 1, and a moving component that drives the mounting plate 12 to move up and down is installed on the mounting shaft 5. The mounting plate 12 is driven to rotate by the rotating column 2, and then the vertical plate 13 and the scraper 15 are rotated. The scraper 15 contacts the inner wall of the mixing box body 1 under the action of the compression spring 16 and can fully scrape the inner wall of the mixing box body 1. The mounting plate 12 is driven up and down by the moving component, and then the scraper 15 is driven up and down during the scraping process, thereby improving the scraping effect of the scraper 15.

[0017] In a further optimized solution, the motion assembly includes a rotating sleeve 17 sleeved on the outside of the installation shaft 5 and rotatably connected to the installation shaft 5, the rotating sleeve 17 is fixedly connected to the stirring blade 24, a first cam 18 is fixedly connected to the outside of the rotating sleeve 17, a plurality of the cams are arranged at the same angle, the vertical plate 13 is fixedly connected to a sliding seat 19 corresponding to the first cam 18, and the first cam 18 is arranged in contact with the sliding seat 19. The rotating sleeve 17 is driven to rotate by the rotation of the stirring blade 24, and the rotating sleeve 17 drives the first cam 18 to rotate during the rotation process, thereby continuously pushing the sliding seat 19 to move, thereby driving the installation plate 12 to move up and down, and improving the scraping efficiency and range of the scraper 15.

[0018] In a further optimized solution, the filtering assembly includes a filter plate 20 which is arranged corresponding to the feed hopper 4 and is slidably connected to the feed hopper 4. A plurality of limit posts 21 are fixedly connected to the side of the filter plate 20 away from the rotating column 2. The limit posts 21 are slidably arranged to penetrate the mixing box body 1. A moving frame 22 is fixedly connected between the two filter plates 20. The rotating column 2 is located in the moving frame 22. A second cam 23 is fixedly connected to the rotating column 2 and corresponding to the moving frame 22. The second cam 23 is arranged to contact the two side walls of the filter plate 20 of the moving frame 22. The rotating column 2 drives the second cam 23 to rotate during the rotation process, thereby driving the moving frame 22 to reciprocate horizontally along the direction of the limit posts 21, thereby driving the two filter plates 20 to slide back and forth at the bottom of the feed hopper 4, so that the raw materials in the feed hopper 4 can be fully and quickly filtered.

[0019] According to a further optimization scheme, the bottom of the mixing box body 1 is connected to a discharge port, and a control valve is installed on the discharge port.

[0020] According to a further optimization scheme, a vacuum pump is installed on the side wall of the mixing box body 1 , and the vacuum pump is connected to the mixing box body 1 .

[0021] Working process of the present invention: When the present invention is in use, the driving motor 3 is started, the driving motor 3 drives the rotating column 2 to rotate, and then the raw materials are poured into the two feed hoppers 4. The rotating column 2 drives the moving frame 22 to slide back and forth along the direction of the limiting column 21 through the second cam 23, thereby driving the two filter plates 20 to swing back and forth at the bottom of the feed hopper 4, so as to fully filter the raw materials. The filtered raw materials enter the mixing body 1, and the rotating column 2 drives the mounting shaft 5 to rotate along the rotating column 2. The mounting shaft 5 drives the control rod 8 to rotate along the fixed column 7 during the rotation process. Due to the cooperation between the first bevel gear 9 and the second bevel gear 10, the control rod 8 rotates along the fixed column 7, thereby driving the stirring blade 24 to rotate along the mounting shaft 5, so as to fully stir the materials in the mixing box body 1. The rotating column 2 drives the vertical plate 13 to rotate through the mounting plate 12 during the rotation process, and then drives the vertical plate 13 and the scraper 15 to rotate to scrape the inner wall of the mixing box body 1. The stirring blade 24 drives the rotating sleeve 17 to rotate during the rotation process, and then drives the first cam 18 to rotate. The first cam 18 drives the mounting plate 12 to move up and down during the rotation process, and then drives the scraper 15 to move up and down, which can improve the scraping efficiency and range of the scraper 15. Then the stirred materials are discharged through the discharge port at the bottom of the mixing box body 1.

[0022] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A pre-treatment device for PDLC dimming film processing, characterized in that: The invention comprises a mixing box body (1), wherein a rotating column (2) is rotatably connected inside the mixing box body (1), a driving motor (3) for driving the rotating column (2) to rotate is fixedly connected to the top wall of the mixing box body (1), two feed hoppers (4) are fixedly installed on the top of the mixing box body (1), a filter assembly is installed in the mixing box, and the filter assembly is arranged corresponding to the feed hopper (4), a mounting shaft (5) is fixedly connected to the circumference of the rotating column (2), an end of the mounting shaft (5) away from the rotating column (2) is rotatably connected to a stirring blade (24), and a rotating assembly for driving the stirring blade (24) to rotate is installed in the rotating column (2); a scraper assembly is installed in the mixing box body (1), and the scraper assembly is arranged in contact with the inner wall of the mixing box.

2. The pre-treatment device for PDLC dimming film processing according to claim 1, characterized in that: The rotating assembly comprises a receiving groove (6) provided in the rotating column (2), a fixed column (7) being rotatably connected in the receiving groove (6), the fixed column (7) penetrating the bottom wall of the receiving groove (6) and being fixedly connected to the bottom wall of the mixing box body (1), a control rod (8) being fixedly connected to the side of the stirring blade (24) close to the rotating column (2), the control rod (8) penetrating the installation shaft (5) and the end of the control rod (8) being located in the receiving groove (6), the control rod (8) being rotatably connected to the installation shaft (5), a first bevel gear (9) being fixedly connected to one end of the control rod (8) located in the receiving groove (6), a second bevel gear (10) being fixedly connected to the peripheral side of the fixed column (7) corresponding to the first bevel gear (9), and the first bevel gear (9) being meshed with the second bevel gear (10) correspondingly.

3. The pretreatment device for PDLC dimming film processing according to claim 1, characterized in that: The scraper assembly comprises two sliding sleeves (11) sleeved on the outer side of the rotating column (2), the sliding sleeves (11) being slidably connected to the rotating column (2) along the axial direction thereof, a plurality of mounting plates (12) being fixedly connected to the circumferential side of the sliding sleeves (11), the mounting plates (12) on the two sliding sleeves (11) being arranged one-to-one correspondingly, the ends of the two corresponding mounting plates (12) being fixedly connected to the same vertical plate (13), a sliding groove (14) being provided in the vertical plate (13), a scraper (15) being slidably connected in the sliding groove (14), a plurality of compression springs (16) being fixedly connected between one side of the scraper (15) and the bottom wall of the sliding groove (14), the other side of the scraper (15) being arranged in contact with the side wall of the mixing box body (1), and a motion component for driving the mounting plate (12) to move up and down is installed on the mounting shaft (5).

4. The pre-treatment device for PDLC dimming film processing according to claim 3, characterized in that: The motion assembly comprises a rotating sleeve (17) sleeved on the outside of the mounting shaft (5) and rotatably connected to the mounting shaft (5); the rotating sleeve (17) is fixedly connected to the stirring blade (24); a first cam (18) is fixedly connected to the outside of the rotating sleeve (17); a plurality of the cams are arranged at the same angle; a sliding seat (19) is fixedly connected to the vertical plate (13) and the first cam (18) correspondingly; and the first cam (18) is arranged in contact with the sliding seat (19).

5. The pre-treatment device for PDLC dimming film processing according to claim 1, characterized in that: The filter assembly comprises a filter plate (20) which is arranged corresponding to the feed hopper (4) and is slidably connected to the feed hopper (4); a plurality of limit posts (21) are fixedly connected to a side of the filter plate (20) away from the rotating column (2); the limit posts (21) are slidably arranged to penetrate the mixing box body (1); a moving frame (22) is fixedly connected between two filter plates (20); the rotating column (2) is located in the moving frame (22); a second cam (23) is fixedly connected between the rotating column (2) and the moving frame (22) correspondingly; the second cam (23) is arranged to contact the two side walls of the filter plate (20) with the moving frame (22).

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