A compound machine coating tank dilution filtration circulation structure
By designing a dilution and filtration circulation structure for the coating tank of the laminating machine, the problems of printing quality caused by impurities in the coating and filter clogging were solved, achieving efficient recycling of coating and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANTOU XINDA COLOR PRINTING PACKAGING MATERIALS
- Filing Date
- 2026-01-07
- Publication Date
- 2026-04-17
AI Technical Summary
Particulate impurities in the coating of laminating machines cause printing quality problems, and the filter screen is prone to clogging. Directly discarding the coating is wasteful and costly.
A coating tank dilution, filtration, and circulation structure for a composite machine is designed, including a sedimentation tank, a filter screen, and a stirring rod. Through a flow-diversion design and a servo motor-driven stirring rod, the sedimentation, dilution, and recycling of the coating are achieved. The filter screen is conical to extend the flow path and ensure thorough impurity retention.
This prevents impurities from accumulating rapidly in certain areas of the filter screen, extends the filter screen's lifespan, reduces downtime for maintenance, enables closed-loop recycling of coatings, and lowers the cost of new coating consumption and waste ink disposal.
Smart Images

Figure CN224126798U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating technology for laminating machines, specifically to a dilution, filtration, and circulation structure for a coating tank in a laminating machine. Background Technology
[0002] Laminating machine coatings are printing coatings specifically designed for dry laminating machines, primarily using gravure printing technology. The laminating machine coating tank dilution, filtration, and circulation structure refers to an integrated system on the laminating machine used for storing, mixing, purifying, and circulating the coatings. Its core purpose is to maintain the stability of the coating's physicochemical properties during the printing process and prevent impurities from affecting print quality.
[0003] If the coating material in the laminating machine is reused directly without being filtered, the particulate impurities in it will cause quality problems such as white spots on the printed products. If the coating material is concentrated in contact with the filter screen, it will cause the filter screen to be overloaded and clogged quickly, thus affecting the normal operation of the laminating machine. If the coating material is discarded directly without being reused, the cost will be high and a lot of waste will be caused. Utility Model Content
[0004] The purpose of this invention is to provide a dilution, filtration, and circulation structure for a coating tank in a composite machine, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a coating tank dilution and filtration circulation structure for a composite machine, comprising a composite machine body and an oil drain pipe. An oil drain pipe is installed on one side of the bottom end of the composite machine body, and a return pipe is installed on the other side of the middle part of the composite machine body. A base is provided below the oil drain pipe, and a sedimentation tank is connected to the top of the base. A support platform is provided on one side of the outer wall of the sedimentation tank, and a delivery pump is provided on the other side of the outer wall of the sedimentation tank. A water storage tank is connected to the top of the support platform. A spray hose is connected to one side of the bottom end of the sedimentation tank, and the side of the spray hose away from the sedimentation tank is connected to the input end of the delivery pump, and the output end of the delivery pump is connected to the return pipe.
[0006] After the paint discharged from the oil drain pipe is settled and diluted by the settling tank, the treated oil is returned to the laminating machine through the return pipe to realize paint circulation.
[0007] A support base is fixedly connected to the middle of the interior of the sedimentation tank, and a filter screen is connected to the top of the support base. The top edge of the filter screen is connected to a base through a column, and a diversion seat is fixedly connected to the inner wall of the base.
[0008] The diversion seat, in conjunction with the base, enables the diversion of the coating, thereby increasing the contact area between the coating and the filter screen.
[0009] Preferably, the filter screen has a conical structure that is larger at the top and smaller at the bottom, the diverter has a conical structure that is smaller at the top and larger at the bottom, the support base and the base both have an "O" shaped structure, the columns are distributed at equal angles, and a water outlet pipe is installed on one side of the bottom of the water storage tank.
[0010] Preferably, the flow divider seat has flow divider holes inside, and the flow divider holes are staggered; the base has flow guide grooves inside, and the flow guide grooves are distributed at equal angles.
[0011] The paint flows to the filter screen through the staggered distribution holes, so that the paint no longer comes into concentrated contact with the filter screen; some paint reaches the base and falls into the filter screen through the guide channel. Since the filter screen is a conical contact that is wider at the top and narrower at the bottom, the paint will flow on the top surface of the filter screen.
[0012] Preferably, a servo motor is installed at the middle of the bottom of the sedimentation tank, and a rotating column is fixedly connected to the output end of the servo motor. A stirring rod is sleeved on the middle of the outer wall of the rotating column, and the stirring rod is triangular.
[0013] The servo motor is activated to drive the rotating column to rotate, which in turn drives the stirring rod to rotate, thereby uniformly mixing the water and the coating and diluting the coating.
[0014] Preferably, the bottom of the sedimentation tank is fixedly connected to two sides of the bottom, the top of the base is provided with two sides of the bottom, the limiting cavity is provided with the limiting strip, and the top of the base is fixedly connected with a handle, and the handle is distributed at equal angles.
[0015] By moving the sedimentation tank, the limiting strips on both sides of the bottom are inserted into the limiting cavity at the top of the base, thus restricting the sedimentation tank and limiting it to the top of the base; by grasping the handle and moving the base upward, the base moves and drives the diverter seat and filter screen to move together until the filter screen is removed from the sedimentation tank, then the filter screen and other components can be disassembled for cleaning.
[0016] As can be seen from the above, the coating tank dilution and filtration circulation structure of the composite machine provided by this utility model has the following beneficial effects.
[0017] The diversion design ensures uniform dispersion of the coating, preventing impurities from accumulating and clogging the filter screen locally. The conical filter screen extends the coating flow path and utilizes gravity for dynamic filtration, resulting in more thorough impurity removal. Furthermore, the filter assembly features an integrated pull-out design, allowing for easy removal and cleaning without complex tools, significantly reducing downtime for maintenance.
[0018] The servo motor drives the stirring rod to perform forced mixing, ensuring that water and paint are fully and quickly mixed, avoiding stratification caused by differences in specific gravity; and it realizes closed-loop recycling of paint, directly reducing the consumption of new paint and the cost of waste ink disposal. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;
[0020] Figure 2 This is a three-dimensional structural diagram of the oil drain pipe and return pipe of this utility model;
[0021] Figure 3 This is a three-dimensional cross-sectional view of the sedimentation tank of this utility model;
[0022] Figure 4 This is a schematic diagram of the front sectional view of the sedimentation tank of this utility model;
[0023] Figure 5 This is a bottom-view three-dimensional structural diagram of the sedimentation tank and limiting strip of this utility model;
[0024] Figure 6 This is a three-dimensional structural diagram of the filter screen and diverter seat of this utility model;
[0025] Figure 7 This is a schematic diagram of the main structure of the filter screen and diverter of this utility model;
[0026] Figure 8 This is a three-dimensional structural diagram of the base and guide channel of this utility model.
[0027] In the diagram: 1. Composite machine body; 2. Oil drain pipe; 3. Base; 4. Sedimentation tank; 5. Support platform; 6. Delivery pump; 7. Water storage tank; 8. Spray hose; 9. Return pipe; 10. Servo motor; 11. Rotating column; 12. Stirring rod; 13. Support base; 14. Filter screen; 15. Base; 16. Diverter seat; 17. Diverter hole; 18. Guide groove; 19. Handle; 20. Limiting strip. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Please see Figures 1-8This utility model provides a technical solution: a coating tank dilution and filtration circulation structure for a composite machine, including a composite machine body 1 and an oil drain pipe 2. The oil drain pipe 2 is installed on one side of the bottom end of the composite machine body 1, and a return pipe 9 is installed on the other side of the middle part of the composite machine body 1. A base 3 is set below the oil drain pipe 2, and a sedimentation tank 4 is connected to the top of the base 3. A support platform 5 is set on one side of the outer wall of the sedimentation tank 4, and a delivery pump 6 is set on the other side of the outer wall of the sedimentation tank 4. A water storage tank 7 is connected to the top of the support platform 5. A spray hose 8 is connected to one side of the bottom end of the sedimentation tank 4, and the side of the spray hose 8 away from the sedimentation tank 4 is connected to the input end of the delivery pump 6. The output end of the delivery pump 6 is connected to the return pipe 9.
[0030] After the paint discharged from the oil drain pipe 2 is settled and diluted by the sedimentation tank 4, the treated oil is returned to the laminating machine through the return pipe 9 to realize paint circulation.
[0031] A support base 13 is fixedly connected to the middle of the interior of the sedimentation tank 4, and a filter screen 14 is connected to the top of the support base 13. The top edge of the filter screen 14 is connected to a base 15 through a column, and a diversion seat 16 is fixedly connected to the inner wall of the base 15.
[0032] The diverter seat 16 works with the base 15 to divert the paint, thereby increasing the contact area between the paint and the filter screen 14.
[0033] The filter screen 14 has a conical structure that is larger at the top and smaller at the bottom. The diverter seat 16 has a conical structure that is smaller at the top and larger at the bottom. The support seat 13 and the base 15 both have an "O" shaped structure. The columns are distributed at equal angles. A water outlet pipe is installed on one side of the bottom of the water storage tank 7. The diverter seat 16 has diverter holes 17 inside, and the diverter holes 17 are staggered. The base 15 has guide grooves 18 inside, and the guide grooves 18 are distributed at equal angles. A servo motor 10 is installed in the middle of the bottom of the sedimentation tank 4. A rotating column 11 is fixedly connected to the output end of the servo motor 10. A stirring rod 12 is sleeved in the middle of the outer wall of the rotating column 11. The stirring rod 12 is triangular. Limiting strips 20 are fixedly connected to both sides of the bottom of the sedimentation tank 4. Limiting cavities corresponding to the limiting strips 20 are opened on both sides of the top of the base 3. A handle 19 is fixedly connected to the top of the base 15, and the handle 19 are distributed at equal angles.
[0034] For specific implementation, please refer to Figure 1 , Figure 2 and Figure 4During the operation of the laminating machine, the waste paint discharged from the laminating machine body 1 is introduced into the settling tank 4 through the oil drain pipe 2. The paint first impacts the diverter seat 16. The diverter seat 16 is designed with a conical structure, which can disperse the paint and make it flow into the filter screen 14 in multiple streams through the staggered diverter holes 17, thereby avoiding the paint from concentrating and impacting a local area of the filter screen 14. After some paint reaches the base 15, it is guided down by the guide groove 18 on its surface and further dispersed to contact the filter screen 14. The filter screen 14 is designed with a conical cover that is wider at the top and narrower at the bottom. The paint flows on its top inclined surface, which prolongs the filtration path and contact time. Finally, the paint penetrates the filter screen 14 and enters the bottom of the settling tank 4. During this process, impurities are effectively blocked.
[0035] The diversion hole 17 can also be replaced by a rectangular groove, an arc groove, or other structures. It is not limited to a circular hole, and the number and size can be set as needed.
[0036] Then, clean water is injected into the sedimentation tank 4 through the water storage tank 7 on the top of the support platform 5; at the same time, the servo motor 10 is started to drive the rotating column 11 and the stirring rod 12 to rotate, so as to uniformly stir and mix the paint and clean water in the tank to dilute the paint; after dilution, the mixture is allowed to settle, and finally the delivery pump 6 is started to pump the treated paint back to the main body of the composite machine 1 for recycling through the spray hose 8 and the return pipe 9.
[0037] See Figure 3 and Figure 5 Move the sedimentation tank 4 so that the bottom limiting strip 20 slides into the limiting cavity at the top of the base 3 to complete the positioning and fixing. When cleaning is required, the staff can hold the handle 19 and lift the base 15 to remove the diverter seat 16, filter screen 14 and base 15 as a whole assembly from the sedimentation tank 4. After cleaning, lower the assembly and reconnect it with the support seat 13 inside the tank to complete the installation.
[0038] The diversion design ensures uniform dispersion of the coating, preventing impurities from accumulating and clogging the filter screen locally. The conical filter screen 14 extends the coating flow path and utilizes gravity to achieve dynamic filtration, resulting in more thorough impurity interception. Furthermore, the filter assembly adopts an integrated pull-out design, which can be removed and cleaned without complicated tools, greatly reducing downtime for maintenance.
[0039] The servo motor 10 drives the stirring rod 12 to perform forced mixing, ensuring that water and paint are fully and quickly mixed, avoiding stratification caused by different specific gravities; and realizing closed-loop recycling of paint, directly reducing the consumption of new paint and the cost of waste ink disposal.
[0040] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.
Claims
1. A coating tank dilution and filtration circulation structure for a laminating machine, comprising a laminating machine body (1) and an oil drain pipe (2), wherein the oil drain pipe (2) is installed on one side of the bottom end of the laminating machine body (1), and a return pipe (9) is installed on the other side of the middle part of the laminating machine body (1), characterized in that: A base (3) is provided below the oil drain pipe (2), and a sedimentation tank (4) is connected to the top of the base (3). A support platform (5) is provided on one side of the outer wall of the sedimentation tank (4), and a delivery pump (6) is provided on the other side of the outer wall of the sedimentation tank (4). A water storage tank (7) is connected to the top of the support platform (5). A spray hose (8) is connected to one side of the bottom of the sedimentation tank (4), and the side of the spray hose (8) away from the sedimentation tank (4) is connected to the input end of the delivery pump (6). The output end of the delivery pump (6) is connected to the return pipe (9). After the paint discharged from the oil drain pipe (2) is settled and diluted by the sedimentation tank (4), the treated oil is returned to the composite machine through the return pipe (9) to realize the paint circulation. The sedimentation tank (4) is fixedly connected to a support base (13) in the middle, and a filter screen (14) is connected to the top of the support base (13). The top edge of the filter screen (14) is connected to a base (15) through a column, and a diverter seat (16) is fixedly connected to the inner wall of the base (15). The diversion seat (16) works with the base (15) to divert the coating, thereby increasing the contact area between the coating and the filter screen (14).
2. The compound machine coater cell dilution filtration circulation structure according to claim 1, characterized in that: The filter screen (14) has a conical structure that is larger at the top and smaller at the bottom. The diverter seat (16) has a conical structure that is smaller at the top and larger at the bottom. The support seat (13) and the base (15) both have an "O" shaped structure. The columns are distributed at equal angles. A water outlet pipe is installed on one side of the bottom of the water storage tank (7).
3. The compound coater bath dilution filtration circulation structure according to claim 2, characterized by: The flow divider seat (16) has flow divider holes (17) inside, and the flow divider holes (17) are staggered. The base (15) has flow guide grooves (18) inside, and the flow guide grooves (18) are distributed at equal angles.
4. The compound machine coater bath dilution filtration circulation structure according to claim 3, characterized in that: A servo motor (10) is installed at the bottom center of the sedimentation tank (4), and a rotating column (11) is fixedly connected to the output end of the servo motor (10). A stirring rod (12) is sleeved on the outer wall of the rotating column (11), and the stirring rod (12) is triangular.
5. The compound machine coater cell dilution filtration circulation structure according to claim 4, characterized in that: The sedimentation tank (4) has a limit strip (20) fixedly connected to both sides of the bottom end. The base (3) has a limit cavity on both sides of the top end corresponding to the limit strip (20). The base (15) has a handle (19) fixedly connected to the top end, and the handles (19) are distributed at equal angles.