Coating liquid stirring treatment equipment with defoaming and filtering functions

Abstract

The invention relates to the technical field of coating liquid processing, in particular to coating liquid stirring treatment equipment with defoaming and filtering, which comprises a coating tank, a shaft lever, a feed port and a sizing pipe, the bottom of the coating tank is connected with a three-way discharge pipe, the feed port is arranged at the top end of the side part of the coating tank, the sizing pipe is communicated with one discharge end of the three-way discharge pipe, and the other discharge end of the three-way discharge pipe is connected with the shaft lever. A circular filter plate is arranged in the three-way discharge pipe and located at the upstream position of the sizing pipe, filter holes A are evenly distributed in the circular filter plate, and the shaft rod is rotationally installed in the coating tank. The three-way discharge pipe is arranged at the bottom of the coating tank, the sizing pipe is connected to the discharge end of the three-way discharge pipe, the round filter plate in the three-way discharge pipe can be used for filtering slurry and eliminating bubbles in the slurry, and then the filtered and defoamed slurry is directly sized to a downstream process through the sizing pipe, so that the sizing efficiency is greatly improved, and the production cost is reduced. And filtering, defoaming and sizing adaptability are combined, so that the subsequent coating quality is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of coating liquid processing, in particular to a coating liquid stirring and processing device with defoaming and filtering function. Background Art

[0002] Coating technology is a technology widely used in pharmaceutical preparations. It protects drugs, improves drug stability and bioavailability, or controls drug release rate by coating the surface of tablets or particles with a uniform film. Coating materials can be water-soluble or insoluble. Common coatings include sugar coating, enteric coating, and sustained-release coating. Coating technology can optimize drug performance, extend drug shelf life, and improve patients' medication experience. In addition to the pharmaceutical field, coating technology is also widely used in the food field.

[0003] During the preparation of the coating liquid, the sizing port is arranged on the coating tank. After the coating liquid is stirred in the coating tank, it needs to be released from the coating tank for filtration, and then poured back into the tank after the filtration is completed. After that, it is transported to the next process through the sizing port. However, the filtration process pours the coating out of the coating tank and then pours it back. The operation process is cumbersome, which increases the preparation time and reduces the preparation efficiency.

[0004] In addition, the traditional stirring method is prone to precipitation of dissolved matter and incomplete stirring. Secondly, the pouring and pouring back process in the above-mentioned filtration will cause more and more bubbles to appear in the coating liquid, and the sizing port is directly set on the coating tank, which cannot effectively eliminate the bubbles, resulting in a large number of bubbles in the prepared coating liquid, causing uneven coating after coating, and poor color uniformity of the coating, which in turn leads to unqualified appearance and functional quality of the coating. Summary of the invention

[0005] The object of the present invention is to provide a coating liquid stirring and processing equipment with defoaming and filtering function to solve the technical problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions.

[0007] A coating liquid stirring and processing equipment with defoaming and filtering comprises a coating tank, an axle, a feed port and a sizing pipe, a three-way discharge pipe is connected to the bottom of the coating tank, the feed port is arranged at the top end of the side of the coating tank, the sizing pipe is connected to one of the discharge ends of the three-way discharge pipe, a circular filter plate is arranged in the three-way discharge pipe at the upstream of the sizing pipe, and filter holes A are evenly distributed on the circular filter plate, the axle is rotatably installed in the coating tank, and the top end extends through to the top of the coating tank, and the bottom end is close to the inner bottom of the coating tank, a first driving mechanism for driving the axle to rotate is arranged on the top of the coating tank, a mounting seat is fixed to the bottom end of the axle through a connecting seat, a plurality of fan-shaped filter plates are arranged in a circular array around the axis of the mounting seat on the outer surface of the mounting seat, and filter holes B are evenly distributed on each fan-shaped filter plate, a second driving mechanism for driving each fan-shaped filter plate to rotate synchronously is commonly arranged in the connecting seat and the mounting seat, and when each fan-shaped filter plate is rotated and adjusted to be horizontal, a full-circle filter plate adapted to the inner diameter size of the coating tank is formed.

[0008] Preferably, the second driving mechanism includes an electric push cylinder A, a mounting plate, and racks, rotating shafts and gears whose numbers match the number of sector filter plates. An inner cavity is commonly provided in the connecting seat and the mounting seat. The electric push cylinder A is vertically fixed in the inner cavity. The mounting plate is fixed on the end of the telescopic rod of the electric push cylinder A and slides in contact with the inner wall of the inner cavity. The rotating shafts are arranged in a circular array around the mounting seat and are all rotatably installed on the side walls of the mounting seat. The ends of the rotating shafts located outside the mounting seat are respectively fixed to the corresponding sector filter plates, and the ends of the rotating shafts located in the inner cavity are fixedly mounted with gears. The ring arrays of racks are arranged below the mounting plate and are respectively meshed with the corresponding gears.

[0009] Preferably, the three-way discharge pipe is composed of a feed pipe, a discharge pipe A and a discharge pipe B, the feed pipe is vertically connected to the bottom of the coating tank, the discharge pipe B is vertically connected to the bottom end of the feed pipe, the discharge pipe A is connected to the side of the feed pipe, the sizing pipe is connected to the end of the discharge pipe A, the circular filter plate is fixedly installed in the discharge pipe A, the first ring body and the second ring body are matched and fixed on the inner wall of the feed pipe from top to bottom, a sealing plate is provided between the first ring body and the second ring body in the feed pipe, and the upper surface of the second ring body is fixed with A spring B extends vertically, and a sealing plate is fixed on the top of the spring B. The outer diameter of the sealing plate is smaller than the inner diameter of the feed pipe. The sealing plate is in contact with the lower surface of the first ring body. A push rod is fixed to the lower surface of the mounting plate. The push rod extends vertically through the bottom of the mounting seat and is in contact with the upper surface of the sealing plate. When the electric push cylinder A pushes the mounting plate down to the extreme position, each sector filter plate rotates to a horizontal state to form a full-circular filter plate. At the same time, the bottom end of the push rod pushes the sealing plate downward to separate the sealing plate from the first ring body.

[0010] Preferably, a horizontally extending slot is provided on one side of the discharge pipe B, in which a blocking plate for blocking the discharge pipe B is slidably inserted, a mounting frame is fixed on the outer wall of the discharge pipe B, an electric push cylinder B is horizontally fixed on the mounting frame, and the end of the telescopic rod of the electric push cylinder B is fixedly connected to the side of the blocking plate.

[0011] Preferably, a vertically extending connecting arm is fixed on the telescopic rod of the electric push cylinder B, and a guide rod is installed to slide through the center of the circular filter plate. One end of the guide rod slides through the outside of the feed pipe and is fixed to the connecting arm, and the other end is fixed to a center seat. Mounting plates are evenly distributed on the outer surface of the center seat, and push needles are evenly distributed on each mounting plate. The push needles can be inserted into the filter holes A one by one.

[0012] Preferably, a floating sweeping mechanism is provided on the shaft near the top of the coating tank, and the floating sweeping mechanism includes a square sleeve, a buoyancy seat and a flexible floating strip. The square sleeve is fixedly sleeved on the shaft, and the buoyancy seat is sleeved on the square sleeve and can slide vertically. Flexible floating strips are installed on the four side surfaces of the buoyancy seat. The flexible floating strip is composed of a number of buoyancy blocks, and two adjacent buoyancy blocks are hinged by a hinge seat.

[0013] Preferably, a stirring mechanism is provided on the shaft between the floating sweeping mechanism and the connecting seat, the stirring mechanism includes a disc seat and a stirring rod, a plurality of disc seats are vertically spaced and mounted on the shaft, stirring rods are evenly distributed on the outer circumferential wall of each disc seat, the bottom disc seat is fixed to the shaft, and the other disc seats can slide up and down along the shaft, and a spring A is provided between each adjacent disc seat on the outside of the shaft, the top end of the spring A is fixed to the lower surface of the disc seat corresponding to the top, and the bottom end is fixed to the upper surface of the disc seat corresponding to the bottom, the upper surface of the top disc seat is evenly distributed with connecting ropes, and the top end of each connecting rope is fixed to the lower surface of the buoyancy seat.

[0014] Preferably, the mounting seat is an octahedron, and four fan-shaped filter plates are arranged. The rotating shaft and the corresponding side of the mounting seat remain perpendicular. The end of the fan-shaped filter plate away from the rotating shaft is movably fitted with the inner wall of the coating tank, and the side close to the rotating shaft is movably fitted with the corresponding side of the mounting seat. Flexible rods A are arranged in an array on one side of the fan-shaped filter plate, and flexible rods B are arranged in an array on the other side. When each fan-shaped filter plate is rotated to a horizontal state, the flexible rods A on one side of the filter hole B and the flexible rods B on the side of the adjacent filter hole B are alternately distributed.

[0015] Preferably, the first driving mechanism includes a motor frame, a driving motor and a coupling. The motor frame is fixed to the top of the coating tank. The driving motor is fixed above the coating tank through the motor frame. The output shaft of the driving motor is fixedly connected to the top of the shaft through the coupling.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0017] 1. The present invention arranges a three-way discharge pipe at the bottom of the coating tank, connects the sizing pipe to the discharge end of the three-way discharge pipe, and utilizes the circular filter plate in the three-way discharge pipe to filter the slurry and eliminate the bubbles in the slurry. After that, the slurry after filtering and defoaming is directly sizing to the downstream process through the sizing pipe, thereby combining the adaptability of filtering, defoaming and sizing, effectively improving the subsequent coating quality. In addition, there is no need to discharge the slurry and then pour it back, which saves time and is efficient.

[0018] 2. During stirring, the present invention adjusts each sector filter plate to an inclined state, and has a larger contact area with the slurry, so that the slurry at the bottom of the coating tank can be stirred to avoid precipitation of dissolved matter. In addition, the bubbles generated during the stirring process can be intercepted and eliminated. The inclination angle of the sector filter plate is adjustable so that the slurry can be stirred to different degrees. During discharge, each sector filter plate is adjusted to a horizontal state to form a full-circle filter plate, and the bubbles in the slurry are intercepted and eliminated in advance, so that the defoaming coverage area is large. In addition, during discharge, the full-circle filter plate is driven to rotate, which, on the one hand, provides a stirring effect to avoid dissolution and precipitation, and on the other hand, the full-circle filter plate in motion has a better effect of intercepting and eliminating bubbles, thereby improving the defoaming quality.

[0019] 3. The present invention works by the extension and retraction of the electric push cylinder A, and the installation plate drives the push rod to rise and fall synchronously. The sealing plate is opened and closed by utilizing the interference cooperation between the push rod and the sealing plate and the elastic reset effect of the spring B, thereby realizing a linkage effect. There is no need to use an additional driving source to drive the sealing plate to open and close, and the equipment cost investment is low. In addition, the opening and closing of the sealing plate and the flipping of the fan-shaped filter plate are adapted to the timing and state of stirring and discharging, the structural layout is reasonable, and the linkage effect is strong.

[0020] 4. In the present invention, when the electric push cylinder B retracts to drive the sealing plate to slide and discharge large particles of impurities, the connection between the connecting arm and the guide rod can drive the center seat, the mounting plate and the push needle to move to the side close to the electric push cylinder B. Finally, each push needle is inserted into the corresponding filter hole A, and the large particles drilled into the filter hole A can be pushed out, so as to clean the filter hole A and avoid excessive entry of large particles into the filter hole A and cause blockage. The movement of the push needle relies on the drive of the electric push cylinder B to achieve a linkage effect, without the need to set up an additional drive, thereby reducing the equipment cost investment.

[0021] 5. The buoyancy seat and the flexible floating strip in the present invention are attached to the slurry surface, which can change the tension of the slurry surface and reduce the generation of bubbles during stirring. In addition, the bubbles formed below the liquid surface float from the bottom to the liquid surface, and the square sleeve, the buoyancy seat and the flexible floating strip can destroy and sweep the bubbles on the liquid surface when rotating with the shaft rod, thereby further reducing the bubble content of the slurry. Secondly, the buoyancy seat and the flexible floating strip can be adaptively raised and lowered by buoyancy, and have high adaptability. In addition, the flexible floating strip formed by a plurality of buoyancy blocks being hinged in sequence has the ability to bend and deform, and can be adaptively deformed according to the fluctuation of the liquid surface, thereby ensuring that the flexible floating strip can effectively adhere to the liquid surface for defoaming.

[0022] 6. When the buoyancy seat and the flexible float bar are adaptively adjusted in height through buoyancy, the connecting action of the connecting rope and the elastic force of the spring A can drive the disc seats except the lowest one to rise and fall synchronously, so as to adaptively adjust the stirring coverage of the stirring rod in the vertical direction according to the amount of slurry in the coating tank, thereby improving the stirring effect of the slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the local structure inside the coating tank of the present invention;

[0025] Figure 3 It is a detailed structural schematic diagram of the floating sweep mechanism in the present invention;

[0026] Figure 4 is a detailed structural diagram of the flexible floating plate in the present invention;

[0027] Figure 5 It is a detailed structural schematic diagram of the stirring mechanism in the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the fan-shaped filter plate in the present invention when it is closed into a full-circle filter plate;

[0029] Figure 7 for Figure 6 A schematic diagram of the structure enlargement in the middle;

[0030] Figure 8 It is a schematic diagram of the structure of the fan-shaped filter plate in the present invention in an expanded state;

[0031] Fig. 9 This is a schematic diagram of the installation of the fan-shaped filter plate structure in the present invention;

[0032] Fig.10 for Fig. 9 A magnified schematic diagram of the structure at B in the middle;

[0033] Fig.11It is a detailed structural schematic diagram of the three-way discharge pipe in the present invention;

[0034] Fig.12 It is a schematic cross-sectional view of a local structure of a three-way discharge pipe in the present invention;

[0035] Fig.13 for Fig.12 Enlarged schematic diagram of the structure at point C in the middle.

[0036] In the figure: 1. coating tank; 11. shaft; 111. connecting seat; 112. mounting seat; 113. inner cavity; 12. feed port; 13. sizing pipe; 2. three-way discharge pipe; 21. feed pipe; 22. discharge pipe A; 23. discharge pipe B; 231. slot; 24. circular filter plate; 241. filter hole A; 3. first driving mechanism; 31. motor frame; 32. driving motor; 33. coupling; 4. fan-shaped filter plate; 41. filter hole B; 42. flexible rod A; 43. flexible rod B; 5. second driving mechanism; 51. electric push cylinder A; 52. mounting plate; 53. rack; 54. Rotating shaft; 55. Gear; 6. Floating sweeping mechanism; 61. Square sleeve; 611. Block seat; 62. Buoyancy seat; 63. Flexible floating strip; 631. Buoyancy block; 632. Articulated seat; 7. Stirring mechanism; 71. Disc seat; 72. Stirring rod; 73. Spring A; 74. Connecting rope; 8. Sealing plate; 81. Mounting frame; 82. Electric push cylinder B; 83. Connecting arm; 84. Guide rod; 85. Center seat; 86. Mounting plate; 87. Pushing needle; 9. Pushing rod; 91. First ring body; 92. Second ring body; 93. Sealing plate; 931. Sealing ring; 94. Spring B. DETAILED DESCRIPTION

[0037] 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.

[0038] See also Figure 1-Figure 13The present invention provides a coating liquid stirring and processing equipment with defoaming and filtering, comprising a coating tank 1, a shaft 11, a feed port 12 and a sizing pipe 13, wherein a three-way discharge pipe 2 is connected to the bottom of the coating tank 1, the feed port 12 is arranged at the top end of the side of the coating tank 1, and is used to supply the coating liquid into the coating tank 1, the sizing pipe 13 is connected to one of the discharge ends of the three-way discharge pipe 2, and is used to sizing the prepared coating liquid to the next process, and a circular filter plate 24 is arranged in the three-way discharge pipe 2 at the upstream of the sizing pipe 13, and the circular filter plate 24 is evenly distributed with filter holes A241, and the filter holes A241 allow particles with composite particle sizes and slurry to pass through the three-way discharge pipe 2. The large particle slurry that is not completely dissolved is filtered on one side by the circular filter plate 24, so as to avoid the large particle slurry from affecting the downstream process and achieve the slurry filtering effect. In addition, the circular filter plate 24 can intercept, squeeze and rub the bubbles that have not been eliminated, so that the bubbles burst and dissipate, thereby achieving the function of eliminating bubbles. The circular filter plate 24 and the filter holes A241 thereon serve as both filtering components and defoaming components. The sizing pipe 13 is arranged at the discharge end of the three-way discharge pipe 2, so that the slurry after filtering and defoaming can be sizing to the downstream process, thereby improving the subsequent coating quality. In addition, there is no need to discharge the slurry and then pour it back, which saves time and has high efficiency.

[0039] The shaft 11 is rotatably mounted in the coating tank 1, and the top end thereof extends through and extends to the top of the coating tank 1, and the bottom end thereof is close to the inner bottom of the coating tank 1. A first driving mechanism 3 for driving the shaft 11 to rotate is provided on the top of the coating tank 1. A mounting seat 112 is fixed to the bottom end of the shaft 11 through a connecting seat 111. Specifically, the connecting seat 111 is fixed to the bottom end of the shaft 11, and the mounting seat 112 is fixed to the bottom end of the connecting seat 111. A plurality of mounting members are arranged in a circular array around the axis of the mounting seat 112 on the outer surface thereof. The dry sector filter plate 4 has filter holes B41 evenly distributed on each sector filter plate 4. The aperture of the filter hole B41 is larger than that of the filter hole A241, allowing slurry and large particles to pass through to avoid clogging. The connecting seat 111 and the mounting seat 112 are jointly provided with a second driving mechanism 5 for driving the sector filter plates 4 to rotate synchronously. The shaft 11 is driven to rotate by the first driving mechanism 3. Under the connection between the connecting seat 111 and the mounting seat 112, the sector filter plates 4 can be driven to rotate in the coating tank 1.

[0040] like Figure 2 and Figure 6 As shown, when each fan-shaped filter plate 4 is rotated and adjusted to a horizontal position, the fan-shaped filter plate 4 is closed to form a full-circle filter plate adapted to the inner diameter of the coating tank 1. When discharging, the bubbles in the slurry can be intercepted and eliminated in advance, such as Figure 8 As shown, when the second driving mechanism 5 drives each sector-shaped filter plate 4 to rotate to a state tending to be vertically expanded, a gap is formed between two adjacent sector-shaped filter plates 4. At this time, the sector-shaped filter plates 4 are used for stirring.

[0041] When the slurry is stirred, the second driving mechanism 5 is used to adjust each fan-shaped filter plate 4 to an inclined state. The fan-shaped filter plate 4 in the inclined state has a larger contact area with the slurry. When the first driving mechanism 3 drives the shaft 11 to rotate, the fan-shaped filter plate 4 is driven to stir the slurry at the bottom of the coating tank 1 to avoid precipitation of dissolved substances, thereby improving the stirring effect and the uniformity and coating quality during the later coating. At the same time, the fan-shaped filter plate 4 and the filter hole B41 thereon can intercept and eliminate the bubbles generated during the stirring process. In addition, the second driving mechanism 5 can drive each fan-shaped filter plate 4 to rotate continuously. At the same angle, the inclination of the fan-shaped filter plate 4 can be adjusted to facilitate stirring of the slurry to different degrees. When discharging after stirring, the second drive mechanism 5 is used to adjust each fan-shaped filter plate 4 to a horizontal state. Each fan-shaped filter plate 4 is closed to form a full-circle filter plate, which can pre-intercept and eliminate bubbles in the slurry, thereby further reducing the bubbles in the slurry. In addition, when discharging, the first drive mechanism 3 drives the shaft 11 to rotate and drives the full-circle filter plate to rotate. On the one hand, it provides a stirring effect to avoid dissolution and precipitation. On the other hand, the full-circle filter plate in motion has a better effect of intercepting and eliminating bubbles.

[0042] Specifically, the second driving mechanism 5 includes an electric push cylinder A51, a mounting plate 52, and racks 53, a rotating shaft 54, and a gear 55 whose number matches the number of fan-shaped filter plates 4. An inner cavity 113 is commonly provided in the connecting seat 111 and the mounting seat 112. The electric push cylinder A51 is vertically fixed in the inner cavity 113. The mounting plate 52 is fixed on the end of the telescopic rod of the electric push cylinder A51 and slides in contact with the inner wall of the inner cavity 113. The racks 53 are arranged in a ring array below the mounting plate 52 and extend vertically. The mounting plate 52 and the racks 53 can be driven to rise and fall synchronously through the telescopic operation of the electric push cylinder A51, thereby providing drive for the lifting and lowering adjustment of the racks 53.

[0043] The rotating shafts 54 are arranged in a circular array around the mounting seat 112, and are all rotatably mounted on the side wall of the mounting seat 112. The ends of the rotating shafts 54 located outside the mounting seat 112 are respectively fixed to the corresponding sector-shaped filter plates 4, and the ends of the rotating shafts 54 located in the inner cavity 113 are fixedly mounted with gears 55, and the racks 53 are respectively meshed with the corresponding gears 55. When the racks 53 are raised and lowered, they can mesh with the driving gears 55 and drive the rotating shafts 54 to rotate, thereby driving the sector-shaped filter plates 4 to rotate, providing drive for the swing adjustment of the sector-shaped filter plates 4.

[0044] Specifically, the three-way discharge pipe 2 is composed of a feed pipe 21, a discharge pipe A22 and a discharge pipe B23. The feed pipe 21 is vertically connected to the bottom of the coating tank 1, the discharge pipe B23 is vertically connected to the bottom end of the feed pipe 21, the discharge pipe A22 is connected to the side of the feed pipe 21, the sizing pipe 13 is connected to the end of the discharge pipe A22, and the circular filter plate 24 is fixedly installed in the discharge pipe A22. During discharge, the slurry in the coating tank 1 is vertically discharged into the feed pipe 21, and passes through the circular filter plate 24 into the discharge pipe A22, and is finally transported to the downstream process through the sizing pipe 13, and the large particle impurities intercepted by the circular filter plate 24 can be discharged through the discharge pipe B23, so as to avoid excessive accumulation of impurities in the three-way discharge pipe 2 and cause blockage.

[0045] A first ring body 91 and a second ring body 92 are matched and fixed on the inner wall of the feed pipe 21 from top to bottom, and a sealing plate 93 is provided in the feed pipe 21 between the first ring body 91 and the second ring body 92. A vertically extending spring B94 is fixed on the upper surface of the second ring body 92. The sealing plate 93 is fixed on the top of the spring B94. The outer diameter of the sealing plate 93 is smaller than the inner diameter of the feed pipe 21, so that there is space for the slurry to pass between the outer peripheral wall of the sealing plate 93 and the inner wall of the feed pipe 21, and the sealing plate 93 is in contact with the lower surface of the first ring body 91.

[0046] A push rod 9 is fixed to the lower surface of the mounting plate 52. The push rod 9 extends vertically to the bottom of the mounting seat 112 and cooperates with the upper surface of the sealing plate 93. When the electric push cylinder A51 pushes the mounting plate 52 down to the extreme position, each sector filter plate 4 rotates to a horizontal state to form a full circular filter plate. At the same time, the bottom end of the push rod 9 pushes the sealing plate 93 downward, so that the sealing plate 93 is separated from the first ring body 91.

[0047] During stirring, the electric push cylinder A51 is in a retracted state. At this time, the push rod 9 is separated from the upper surface of the sealing plate 93. Under the elastic force of the spring B94, the sealing plate 93 is pushed to fit tightly with the lower surface of the first ring body 91, thereby achieving a sealing effect, preventing the slurry from flowing into the discharge pipe A22 and being discharged when it is not stirred well. In addition, a sealing ring 931 made of rubber material is fixed on the sealing plate 93. The sealing ring 931 is elastic. When the sealing plate 93 and the lower surface of the first ring body 91 are in contact and sealed, the sealing ring 931 is squeezed between the sealing plate 93 and the first ring body 91, thereby achieving a good sealing effect.

[0048] During discharging, the electric push cylinder A51 extends to push the mounting plate 52 down to the limit position, at which time it drives each sector filter plate 4 to rotate to a horizontal position to form a full-circular filter plate. At the same time, the mounting plate 52 pushes the push rod 9 downward, and the push rod 9 pushes the sealing plate 93 downward and separates from the first ring body 91. At this time, the spring B94 elastically stores force, and there is a gap between the lower surface of the first ring body 91 and the upper surface of the sealing plate 93. The slurry can flow into the discharge pipe A22 through the inner hole of the first ring body 91, between the inner wall of the feed pipe 21 and the outer peripheral wall of the second ring body 92, and through the inner hole of the second ring body 92, and finally transported to the downstream process through the slurry pipe 13. After the discharging is completed and the electric push cylinder A51 retracts and resets, it drives the push rod 9 to move up and separate from the sealing plate 93, and uses the elastic reset of the spring B94 to push the sealing plate 93 up and re-fit and seal with the first ring body 91. The elastic force of the spring B94 is used to realize the automatic reset and blocking of the sealing plate 93.

[0049] It is worth mentioning that the electric push cylinder A51 is extended and retracted, and the mounting plate 52 drives the push rod 9 to rise and fall synchronously. The sealing plate 93 is opened and closed by utilizing the interference cooperation between the push rod 9 and the sealing plate 93 and the elastic reset effect of the spring B94, thereby achieving a linkage effect. There is no need to use an additional driving source to drive the sealing plate 93 to open and close, and the equipment cost investment is low. In addition, the opening and closing of the sealing plate 93 and the flipping of the fan-shaped filter plate 4 are adapted to the timing and state of stirring and discharging, the structural layout is reasonable, and the linkage effect is strong.

[0050] Specifically, a horizontally extending slot 231 is provided on one side of the discharge pipe B23, and a sealing plate 8 for sealing the discharge pipe B23 is slidably inserted in the slot 231. A mounting frame 81 is fixed on the outer wall of the discharge pipe B23, and an electric push cylinder B82 is horizontally fixed on the mounting frame 81. The end of the telescopic rod of the electric push cylinder B82 is fixedly connected to the side of the sealing plate 8. When discharging, the electric push cylinder B82 extends to push the sealing plate 8 to slide and seal the slot 231 to prevent the slurry from being discharged from the discharge pipe B23. After the discharge is completed, the electric push cylinder B82 retracts to drive the sealing plate 8 to slide outward, so that the discharge pipe B23 is opened, which is beneficial to the discharge of large particles of impurities that have been filtered out.

[0051] In addition, a vertically extending connecting arm 83 is fixed on the telescopic rod of the electric push cylinder B82, and a guide rod 84 is installed at the center of the circular filter plate 24 for sliding through. One end of the guide rod 84 slides through the outside of the feed pipe 21 and is fixed to the connecting arm 83, and the other end is fixed to a center seat 85. Mounting plates 86 are evenly distributed on the outer surface of the center seat 85 to form a cross-shaped structure. There are gaps between adjacent mounting plates 86, which will not affect the movement of the slurry. Pushing needles 87 are evenly distributed on each mounting plate 86, and the pushing needles 87 can be inserted into the filter holes A241 one by one. When the electric push cylinder B82 retracts and drives the sealing plate 8 to slide to discharge large particles of impurities, the connecting arm 83 and the guide rod 8 4 can drive the center seat 85, the mounting plate 86 and the push needle 87 to move toward the side close to the electric push cylinder B82, and finally each push needle 87 is inserted into the corresponding filter hole A241, and the large particles drilled into the filter hole A241 can be pushed out, so as to clean the filter hole A241 and prevent the large particles from excessively entering the filter hole A241 and causing blockage, so as to clean and maintain the circular filter plate 24. The movement of the push needle 87 depends on the drive of the electric push cylinder B82 to achieve a linkage effect, without setting up an additional drive, thereby reducing the equipment cost investment. When the electric push cylinder B82 extends to push the blocking plate 8 to block the discharge pipe B23, the push needle 87 can be synchronously driven to withdraw from the filter hole A241.

[0052] Specifically, a floating sweeping mechanism 6 is provided on the shaft 11 near the top of the coating tank 1, and the floating sweeping mechanism 6 includes a square sleeve 61, a buoyancy seat 62 and a flexible floating strip 63. The square sleeve 61 is fixedly sleeved on the shaft 11, and the buoyancy seat 62 is sleeved on the square sleeve 61 and can slide vertically. The top and bottom of the square sleeve 61 are fixed by a stopper 611, and the buoyancy seat 62 can be limited on the square sleeve 61. The square sleeve 61 with a square cross-section is adapted to the hole cavity with a cross-section in the direction of the buoyancy seat 62, which can ensure that the buoyancy seat 62 can slide vertically along the square sleeve 61, and can ensure that there is no relative rotation between the square sleeve 61 and the buoyancy seat 62, so that the square sleeve 61 can drive the buoyancy seat 62 to rotate when it rotates, and flexible floating strips 63 are installed on the four side surfaces of the buoyancy seat 62.

[0053] The buoyancy seat 62 and the flexible float bar 63 are attached to the slurry surface, which can change the tension of the slurry surface and reduce the generation of bubbles during stirring. In addition, the bubbles formed below the liquid surface float from the bottom to the liquid surface, and the square sleeve 61, the buoyancy seat 62 and the flexible float bar 63 can destroy and sweep the bubbles on the liquid surface when rotating with the shaft 11, thereby further reducing the bubble content of the slurry. Secondly, the buoyancy seat 62 and the flexible float bar 63 can be adaptively raised and lowered through buoyancy, and have high adaptability.

[0054] Flexible floating strip 63 The flexible floating strip 63 is composed of a plurality of buoyancy blocks 631, which are arranged linearly and are hinged to each other by a hinge seat 632, so that the two adjacent buoyancy blocks 631 have the ability to rotate relative to each other. The flexible floating strip 63 formed by hinged connection of a plurality of buoyancy blocks 631 has the ability to bend and deform, and can be adaptively deformed according to the fluctuation of the liquid surface, thereby ensuring that the flexible floating strip 63 can effectively fit the liquid surface to perform defoaming work.

[0055] Specifically, a stirring mechanism 7 is provided on the shaft 11 between the floating sweeping mechanism 6 and the connecting seat 111. The stirring mechanism 7 includes a disc seat 71 and a stirring rod 72. A plurality of disc seats 71 are spaced apart on the shaft 11 in the vertical direction. Stirring rods 72 are evenly distributed on the outer peripheral wall of each disc seat 71. When the first driving mechanism 3 drives the shaft 11 to rotate, it can drive each stirring rod 72 to rotate, thereby achieving stirring of the slurry.

[0056] The disc seat 71 at the bottom is fixed to the shaft rod 11, and the other disc seats 71 can slide up and down along the shaft rod 11. A spring A73 is sleeved between each adjacent disc seat 71 on the outside of the shaft rod 11. The top of the spring A73 is fixed to the lower surface of the disc seat 71 corresponding to the top, and the bottom is fixed to the upper surface of the disc seat 71 corresponding to the bottom. The upper surface of the top disc seat 71 is evenly distributed with connecting ropes 74, and the top of each connecting rope 74 is fixed to the lower surface of the buoyancy seat 62. When the amount of slurry added to the coating tank 1 is different, the liquid level height is different. When the buoyancy seat 62 and the flexible floating bar 63 are height-adaptedly adjusted by buoyancy, the disc seats 71 except the bottom one can be driven to rise and fall synchronously under the connection effect of the connecting rope 74 and the elastic force of the spring A73, so as to adaptively adjust the stirring coverage range of the stirring rod 72 in the vertical direction according to the amount of slurry in the coating tank 1, thereby improving the stirring effect of the slurry.

[0057] Specifically, the mounting seat 112 is an octahedron, and four fan-shaped filter plates 4 are arranged. The rotating shaft 54 ​​remains perpendicular to the corresponding side of the mounting seat 112. The end of the fan-shaped filter plate 4 away from the rotating shaft 54 ​​is movably fitted with the inner wall of the coating tank 1, and the side close to the rotating shaft 54 ​​is movably fitted with the corresponding side of the mounting seat 112. When each fan-shaped filter plate 4 is closed to form a full-circular filter plate, bubbles are prevented from passing through the gap between the outer edge wall of the fan-shaped filter plate 4 and the inner wall of the coating tank 1 and the gap between the inner end of the fan-shaped filter plate 4 and the outer surface of the mounting seat 112.

[0058] Flexible rods A42 are arranged in an array on one side of the fan-shaped filter plate 4, and flexible rods B43 are arranged in an array on the other side. When each fan-shaped filter plate 4 is rotated to a horizontal state, the flexible rods A42 on one side of the filter hole B41 and the flexible rods B43 on the side of the adjacent filter hole B41 are alternately distributed to prevent bubbles from passing through the gaps between adjacent fan-shaped filter plates 4, thereby further improving the effect of intercepting and eliminating bubbles.

[0059] Specifically, the first driving mechanism 3 includes a motor frame 31, a driving motor 32 and a coupling 33. The motor frame 31 is fixed to the top of the coating tank 1, and the driving motor 32 is fixed above the coating tank 1 through the motor frame 31. The output shaft of the driving motor 32 is fixedly connected to the top of the shaft 11 through the coupling 33. When the driving motor 32 works, its output shaft drives the shaft 11 to rotate through the coupling 33, thereby providing drive for the stirring action.

[0060] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. A coating liquid stirring and processing equipment with defoaming and filtration, characterized in that: It comprises a coating tank (1), a shaft (11), a feed port (12) and a sizing pipe (13); The coating tank (1) is connected to a three-way discharge pipe (2) at the bottom, the feed port (12) is arranged at the top end of the side of the coating tank (1), the sizing pipe (13) is connected to one of the discharge ends of the three-way discharge pipe (2), and a circular filter plate (24) is arranged in the three-way discharge pipe (2) at the upstream of the sizing pipe (13), and the circular filter plate (24) is evenly distributed with filter holes A (241); The shaft (11) is rotatably mounted in the coating tank (1), and the top end thereof extends through the coating tank (1) and the bottom end thereof is close to the inner bottom of the coating tank (1). A first driving mechanism (3) for driving the shaft (11) to rotate is provided on the top of the coating tank (1); The bottom end of the shaft (11) is fixed with a mounting seat (112) via a connecting seat (111), and a plurality of sector-shaped filter plates (4) are arranged in a circular array around the axis of the mounting seat (112), and each sector-shaped filter plate (4) is evenly distributed with filter holes B (41); The connecting seat (111) and the mounting seat (112) are provided with a second driving mechanism (5) for driving the sector-shaped filter plates (4) to rotate synchronously. When the sector-shaped filter plates (4) are rotated and adjusted to be horizontal, a full-circular filter plate that matches the inner diameter of the coating tank (1) is formed.

2. The coating liquid stirring and processing equipment with defoaming and filtration according to claim 1 is characterized in that: The second driving mechanism (5) comprises an electric push cylinder A (51), a mounting plate (52), and racks (53), rotating shafts (54), and gears (55) whose number matches the number of the fan-shaped filter plates (4); The connecting seat (111) and the mounting seat (112) are both provided with an inner cavity (113), and the electric push cylinder A (51) is vertically fixed in the inner cavity (113); The mounting plate (52) is fixed to the end of the telescopic rod of the electric push cylinder A (51) and is slidably fitted to the inner wall of the inner cavity (113); The rotating shafts (54) are arranged in a circular array around the mounting seat (112) and are all rotatably mounted on the side wall of the mounting seat (112); the ends of the rotating shafts (54) located outside the mounting seat (112) are respectively fixed to the corresponding sector filter plates (4); and the ends of the rotating shafts (54) located inside the inner cavity (113) are fixedly sleeved with the gears (55); The racks (53) are arranged in an annular array below the mounting plate (52) and are respectively meshed with the corresponding gears (55).

3. The coating liquid stirring and processing equipment with defoaming and filtration according to claim 2 is characterized in that: The three-way discharge pipe (2) is composed of a feed pipe (21), a discharge pipe A (22) and a discharge pipe B (23), wherein the feed pipe (21) is vertically connected to the bottom of the coating tank (1), the discharge pipe B (23) is vertically connected to the bottom end of the feed pipe (21), and the discharge pipe A (22) is connected to the side of the feed pipe (21); The sizing pipe (13) is connected to the end of the discharge pipe A (22), and the circular filter plate (24) is fixedly installed in the discharge pipe A (22); A first ring body (91) and a second ring body (92) are matched and fixed on the inner wall of the feed pipe (21) from top to bottom; A sealing plate (93) is provided in the feed pipe (21) between the first ring body (91) and the second ring body (92); a vertically extending spring B (94) is fixed on the upper surface of the second ring body (92); and the sealing plate (93) is fixed on the top end of the spring B (94); The outer diameter of the sealing plate (93) is smaller than the inner diameter of the feed pipe (21), and the sealing plate (93) is in contact with the lower surface of the first ring body (91); A push rod (9) is fixed on the lower surface of the mounting plate (52), and the push rod (9) vertically extends through and extends below the mounting seat (112) and contacts and cooperates with the upper surface of the sealing plate (93); When the electric push cylinder A (51) pushes the mounting plate (52) down to the extreme position, each of the fan-shaped filter plates (4) rotates to a horizontal state to form a full-circular filter plate. At the same time, the bottom end of the push rod (9) pushes the sealing plate (93) downward, so that the sealing plate (93) is separated from the first ring body (91).

4. The coating liquid stirring and processing equipment with defoaming and filtration according to claim 3 is characterized in that: A horizontally extending slot (231) is provided on one side of the discharge pipe B (23), and a blocking plate (8) for blocking the discharge pipe B (23) is slidably inserted into the slot (231); A mounting frame (81) is fixed on the outer wall of the discharge pipe B (23), and an electric push cylinder B (82) is horizontally fixed on the mounting frame (81). The end of the telescopic rod of the electric push cylinder B (82) is fixedly connected to the side of the blocking plate (8).

5. The coating liquid stirring and processing equipment with defoaming and filtration according to claim 4, characterized in that: A vertically extending connecting arm (83) is fixed on the telescopic rod of the electric push cylinder B (82); A guide rod (84) is slidably installed at the center of the circular filter plate (24), one end of the guide rod (84) slides through the outside of the feed pipe (21) and is fixed to the connecting arm (83), and the other end is fixed with a center seat (85); The outer peripheral surface of the center seat (85) is evenly distributed with mounting plates (86), and each mounting plate (86) is evenly distributed with a push pin (87), and the push pins (87) can be inserted into the filter holes A (241) one by one.

6. The coating liquid stirring and processing equipment with defoaming and filtration according to claim 5, characterized in that: A floating sweeping mechanism (6) is provided on the shaft (11) near the top of the coating tank (1), and the floating sweeping mechanism (6) comprises a square sleeve (61), a buoyancy seat (62) and a flexible floating strip (63); The square sleeve (61) is fixedly sleeved on the shaft (11), the buoyancy seat (62) is sleeved on the square sleeve (61) and can slide vertically, and flexible floating strips (63) are installed on the four side surfaces of the buoyancy seat (62); The flexible floating strip (63) is composed of a plurality of buoyancy blocks (631), and two adjacent buoyancy blocks (631) are hingedly connected via a hinge seat (632).

7. The coating liquid stirring and processing equipment with defoaming and filtration according to claim 6, characterized in that: A stirring mechanism (7) is provided on the shaft (11) between the floating sweeping mechanism (6) and the connecting seat (111); The stirring mechanism (7) comprises a disc seat (71) and a stirring rod (72); A plurality of the disc seats (71) are spaced apart and sleeved on the shaft (11) in a vertical direction, and the stirring rods (72) are evenly distributed on the outer peripheral wall of each of the disc seats (71); The bottommost disc seat (71) is fixed to the shaft (11), and the remaining disc seats (71) can slide up and down along the shaft (11); A spring A (73) is sleeved between each adjacent two disc seats (71) on the outside of the shaft (11), the top end of the spring A (73) is fixed to the lower surface of the disc seat (71) corresponding to the top, and the bottom end is fixed to the upper surface of the disc seat (71) corresponding to the bottom; The upper surface of the uppermost disc seat (71) is evenly distributed with connecting ropes (74), and the top end of each connecting rope (74) is fixed to the lower surface of the buoyancy seat (62).

8. The coating liquid stirring and processing equipment with defoaming and filtration according to claim 2, characterized in that: The mounting seat (112) is an octahedron, and the number of the fan-shaped filter plates (4) arranged is four; The rotating shaft (54) and the corresponding side of the mounting seat (112) remain perpendicular; One end of the fan-shaped filter plate (4) away from the rotating shaft (54) is movably fitted with the inner wall of the coating tank (1), and the side close to the rotating shaft (54) is movably fitted with the corresponding side of the mounting seat (112); Flexible rods A (42) are arranged in an array on one side of the fan-shaped filter plate (4), and flexible rods B (43) are arranged in an array on the other side. When each of the fan-shaped filter plates (4) is rotated to a horizontal state, the flexible rods A (42) on one side of the filter hole B (41) and the flexible rods B (43) on the side of the adjacent filter hole B (41) are arranged in an alternating manner.

9. The coating liquid stirring and processing equipment with defoaming and filtration according to claim 1, characterized in that: The first driving mechanism (3) comprises a motor frame (31), a driving motor (32) and a coupling (33); The motor frame (31) is fixed on the top of the coating tank (1), and the driving motor (32) is fixed above the coating tank (1) through the motor frame (31); The output shaft of the driving motor (32) is fixedly connected to the top end of the shaft rod (11) via the coupling (33).

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