Feeding equipment for disposable paper cup production coating

Abstract

The invention provides feeding equipment for disposable paper cup production coating. The feeding equipment comprises a first tank, a first frame used for supporting the first tank and a top cover arranged on the surface of the first tank. The device further comprises a first pipe and a second pipe which are arranged on the surface of the first tank, a first box used for adjusting pipeline connection is arranged on the surfaces of the first pipe and the second pipe, and a fifth pipe and a fourth pipe which serve as pigment inlets are arranged on the surface of the first box. According to the device, the whole line shutdown caused by cleaning and color changing of a single feeding unit is fundamentally eliminated, the equipment utilization rate and the production efficiency are remarkably improved, the modularized pressure bag and the integrated cleaning flow channel enable empty bags to be used to be rapidly filled and the bags which are just used up to be automatically cleaned when coating varieties are replaced, and the production efficiency is improved. The preparation time of product switching is greatly shortened, and the flexible production requirements of small batches and multiple varieties are met.

Description

Technical Field

[0001] This invention relates to the field of paper cup production, and more particularly to a feeding device for coatings used in the production of disposable paper cups. Background Technology

[0002] In the production process of disposable paper cups, a specific coating needs to be evenly applied to the outer wall of the paper cup.

[0003] Traditional feeding equipment typically uses a single storage tank. When it is necessary to change the paint color or clean the equipment, production must be stopped and the storage tank and the entire feeding pipeline must be thoroughly cleaned. This not only leads to low production efficiency but also wastes paint and cleaning water. The cleaning process also easily generates wastewater treatment problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the existing technology. The present invention proposes a feeding device for producing coatings from disposable paper cups.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a feeding device for producing coatings from disposable paper cups, comprising: a tank, a frame for supporting the tank, and a top cover disposed on the surface of the tank;

[0006] It also includes pipes 1 and 2 installed on the surface of tank 1. The surface of pipes 1 and 2 is provided with a box 1 for adjusting the pipe connection. The surface of box 1 is provided with pipes 5 and 4 as pigment inlets. The interior of tank 1 is provided with a partition. The surface of the partition is provided with pressure bladders 1 and 2. The surface of pressure bladders 1 and 2 is provided with a pipe opening for connecting with pipes 1 and 2. The bottom of pressure bladder 2 is provided with pipe 6. The interior of pipe 6 is provided with plate 4. The surface of plate 4 is provided with plate 5. The bottom of the partition is provided with plate 2. The surface of plate 2 is provided with plate 1. The bottom of tank 1 is provided with pipes 7 and 3. When plate 1 rotates, it lifts plate 5, and pressure bladders 1 and 2 are connected to pipes 7 and 3.

[0007] Preferably, the edge of the fifth plate is provided with a sixth plate for sealing the gap between the fourth plate and the sixth pipe.

[0008] Preferably, the tube six has a plate three inside, and the surface of the plate three has an elastic element one that pushes the plate four to reset.

[0009] Preferably, the surface of the tube six is ​​provided with a groove for the movement of the plate one.

[0010] Preferably, the surface of the first plate is provided with a protrusion that lifts the fifth plate. When the protrusion lifts the fifth plate, the pigment inside the sixth tube passes through the fourth plate.

[0011] Preferably, the bottom of the partition is provided with a motor for driving the second plate to rotate.

[0012] Preferably, the interior of the first box is provided with a plate seven for blocking the first and second pipes, and the interiors of the first and second pipes are provided with elastic elements two for pushing the plate seven to reset.

[0013] Preferably, the interior of the box is provided with a frame 2 for pushing the plate 7 to block the pipe 1 and the pipe 2.

[0014] Preferably, the surface of the second frame is provided with a plate eight to reduce friction with the surface of the seventh plate.

[0015] Preferably, the surface of the first box is provided with a motor for rotating the second drive frame.

[0016] Compared with the prior art, the beneficial effects of the present invention include: by adopting a dual pressure bladder design and using an automatic switching valve, the supply of paint and the cleaning and preparation of pressure bladders can be carried out simultaneously, fundamentally eliminating the downtime of the entire production line caused by cleaning or changing colors of a single supply unit, significantly improving equipment utilization and production efficiency. The modular pressure bladders and integrated cleaning channels enable the quick filling of empty bladders to be used when changing paint types, and the automatic cleaning of bladders that have just been used, greatly shortening the preparation time for product changeover and adapting to the flexible production needs of small batches and multiple varieties. Attached Figure Description

[0017] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0018] Figure 1 The diagram illustrates the structure of a feeding device for producing coatings from disposable paper cups according to an embodiment of the present invention.

[0019] Figure 2 The diagram illustrates the structure of a feeding device for producing coatings from disposable paper cups according to an embodiment of the present invention.

[0020] Figure 3 The diagram illustrates a cross-sectional structure of a tank according to an embodiment of the present invention.

[0021] Figure 4 The diagram schematically shows a cross-sectional view of a pressure bladder according to an embodiment of the present invention.

[0022] Figure 5 The diagram illustrates a six-section structure of a tube according to an embodiment of the present invention.

[0023] Figure 6 The diagram schematically illustrates the internal structure of a tube six according to an embodiment of the present invention.

[0024] Figure 7 The diagram schematically shows a bottom structure of a tank according to one embodiment of the present invention.

[0025] Figure 8 The diagram illustrates a box-section structure according to an embodiment of the present invention.

[0026] Figure 9 The diagram illustrates a two-section structure of a tube according to an embodiment of the present invention.

[0027] Numbered in the diagram: 1. Top cover; 2. Motor 1; 3. Box 1; 4. Pipe 1; 5. Pipe 2; 6. Locking post; 7. Tank 1; 8. Frame 1; 9. Pipe 3; 10. Pipe 4; 11. Pipe 5; 12. Pressure bladder 1; 13. Pipe opening; 14. Partition; 15. Outer frame; 16. Pressure bladder 2; 17. Pipe 6; 18. Plate 1; 19. Motor 2; 20. Plate 2; 21. Protrusion; 22. Plate 3; 23. Elastic component 1; 24. Plate 4; 25. Plate 5; 26. Groove 1; 27. Plate 6; 28. Pipe 7; 29. ​​Plate 7; 30. Frame 2; 31. Plate 8; 32. Elastic component 2; Detailed Implementation

[0028] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0030] Example 1

[0031] According to one embodiment of the present invention, Figures 1-7 As shown, the disposable paper cup production coating feeding equipment of this invention has a main body of a vertical cylindrical main tank 7. The tank is preferably made of stainless steel, such as 304 or 316L stainless steel, and the inner wall is mirror polished to reduce coating adhesion. The main tank 7 is stably supported on the ground or work platform by a sturdy support frame 8. The top of the main tank 7 is provided with an openable top cover 1, which is fixedly connected to the tank 7 by a locking pin 6 on the surface, which facilitates the maintenance or replacement of internal components during equipment installation and maintenance.

[0032] A support plate partition 14 is installed inside the main tank 7. The partition 14 is fastened to the inner wall of the tank by circumferential welding or bolt connection. The partition 14 must have sufficient rigidity and sealing to withstand the internal pressure of pressure bladder 12 and pressure bladder 2 16 when they are working.

[0033] Pressure bladder 12 and pressure bladder 2 16 are disposed in the space between partition 14 and main tank 7. Pressure bladder 12 and pressure bladder 2 16 are preferably made of food-grade, solvent-resistant, highly elastic rubber or fluororubber film. When liquid flows in, pressure bladder 12 and pressure bladder 2 16 expand. When liquid flows out, pressure bladder 12 and pressure bladder 2 16 shrink. A rigidly connected pipe port 13 is provided at the top center of pressure bladder 12 and pressure bladder 2 16, which is connected to pipe 1 4 and pipe 2 5.

[0034] The unloading control at the bottom of each pressure bladder is achieved by a clever mechanical linkage valve mechanism. The main body of this mechanism is a vertically installed valve body tube 17, the upper end of which is sealed to the bottom outlet of pressure bladder 12 and pressure bladder 26, and the lower end is connected to tubes 28 and 9 on the surface of tank 17. Inside the valve body, a valve core slider plate 24 can slide axially. A lifting force plate 25 is fixed on plate 24. The edge of plate 25 is embedded with a dynamic sealing ring plate 27. The sealing ring 27 is made of wear-resistant and solvent-resistant elastic material, such as polytetrafluoroethylene-coated rubber. Its outer diameter is precisely matched with the inner diameter of valve body 17. In the closed state, the elastic element 23 pushes the lower limit plate 22 upward, and then supports plate 24 and plate 25 through plate 22, so that the sealing ring 27 is pressed tightly against the specially made conical sealing seat or flat sealing surface inside valve body 17, forming a reliable seal and preventing the material in the pressure bladder from leaking out.

[0035] The valve opening is powered by a drive mechanism located in the lower chamber of the main tank 7. A second drive motor 19 is fixedly mounted at the center or eccentric position of the lower surface of the partition 14, with its output shaft pointing vertically downwards and connected to a horizontally placed drive turntable plate 20. A linkage push rod mounting plate 18 is fixedly mounted on the plate 20. Above the end of the plate 18 is a valve-lifting actuating head protrusion 21, which can be a cylindrical pin, roller, or wedge. The side wall of the valve body 17 corresponds to the position of the protrusion 21's movement trajectory. A longitudinal movable groove 26 is provided. When the motor 219 drives the plate 20 to rotate, the plate 18 drives the protrusion 21 to rotate accordingly. If the rotation path of the protrusion 21 passes through the groove 26 of a valve body 17, it will extend into the groove and push up the plate 5 25 located inside the valve body. The plate 5 25 is pushed up, which drives the entire valve core slider 24 to move upward, compressing the return spring 23. At the same time, the sealing ring 27 is separated from the sealing surface, and the valve is opened. The fluid in the pressure bladder can flow into the lower liquid collection chamber through the opened valve port.

[0036] The bottom of the main tank 7 is equipped with two outlets: paint product outlet pipe 3 9 and cleaning waste liquid outlet pipe 7 28. Pipe 3 9 is connected to the subsequent precision metering pump, filter and coating head through a pipeline, and is the output channel for qualified paint. Pipe 7 28 is connected to the factory's wastewater collection or treatment system.

[0037] Pressure bladder 12 is filled with red paint and is closed; pressure bladder 26 is empty and has completed the previous cleaning cycle, with its bottom valve closed; motor 29 rotates, driving turntable 20 to rotate plate 18, causing protrusion 21 to move precisely into groove 26 of valve body 17 below pressure bladder 12, lifting plate 5 25, opening the valve at the bottom of pressure bladder 12. Because the bladder is filled with paint, pressure bladder 12 expands and presses against the surface of partition 14, creating positive pressure inside. Red paint begins to flow through the opened valve into pipe 3 9 and flows steadily out of pipe 3 9 to supply the production line. Pipe 4 10 is the cleaning pipe, pipe 5 11 is the paint pipe, pipe 1 4 is connected to pressure bladder 12, pipe 2 5 is connected to pressure bladder 2 16, and valve box 3... Control pipe 5 11 is connected to pipe 2 5, and pipe 4 10 is disconnected from pipe 1 4. At this time, the cleaning medium is pumped into tank 1 3 through pipe 4 10. The cleaning medium cannot enter pressure bladder 1 12, but enters pipe 2 5 through the connected flow channel and is injected into pressure bladder 2 16 through pipe port 13. The cleaning medium fills pressure bladder 2 16 and soaks and flushes its inner wall. After cleaning, ensure that pressure bladder 1 12 is still feeding normally, and then control motor 2 19 to rotate, so that protrusion 21 leaves the valve of pressure bladder 1 12. The valve is closed under the action of spring 23 and continues to rotate until it lifts the valve at the bottom of pressure bladder 2 16. Pressure bladder 2 16 contains cleaning waste liquid. After the valve is opened, the waste liquid flows into pipe 7 28 under the action of gravity, so that the cleaning waste liquid is discharged from pipe 7 28 to the wastewater system.

[0038] After the evacuation is completed, motor 219 is activated to close the bottom valve of pressure bladder 216. Then, control pipe 511 of box 13 is connected to pipe 4, and pressure bladder 12 is injected through pipe 4. When pressure bladder 12 is full, control box 13 connects pipe 410 to pipe 25 to clean pressure bladder 216.

[0039] Example 2

[0040] According to one embodiment of the present invention, Figures 1-9As shown, the integrated fluid switching valve box 3 is a sealed box independent of the main tank 7. Pipe 4 10 is connected to the cleaning medium supply system, and pipe 5 11 is connected to the paint supply system. Box 3 is also connected to the port 13 at the top of pressure bladder 12 and pressure bladder 2 16 via pipes 1 4 and 2 5 respectively. A key fluid guiding mechanism is installed inside the box. Plate 7 29 is usually kept in the neutral position under the preload of elastic element 2 32. The output shaft of drive motor 1 2 is connected to a drive boom 2 30. A rolling contact head plate 8 31 is installed at the end of the boom. When motor 1 2 receives control... When the control signal rotates, the second frame 30 and the eighth plate 31 push the seventh plate 29 to overcome the resistance of the spring 32, so that the seventh plate 29 blocks the first pipe 4 or the second pipe 5, thereby changing the connection relationship of the internal flow channel of the box. This can block the port of the first pipe 4, disconnecting the coating in the fifth pipe 11 from the first pipe 4, while connecting the cleaning medium in the fourth pipe 10 to the second pipe 5. Alternatively, it can block the port of the second pipe 5, disconnecting the coating in the fifth pipe 11 from the second pipe 5, while connecting the cleaning medium in the fourth pipe 10 to the first pipe 4. Through the control of the first motor 2, it is possible to accurately determine whether to guide the coating and the cleaning medium to the first pressure bladder 12 or the second pressure bladder 16 respectively.

[0041] Pressure bladder 12 is filled with red paint and is closed; pressure bladder 26 is empty and has completed the previous cleaning cycle, with its bottom valve closed; motor 29 rotates, driving turntable 20 to rotate plate 18, causing protrusion 21 to move precisely into groove 26 of valve body 17 below pressure bladder 12, and lifting plate 5 25. The valve at the bottom of pressure bladder 12 opens. Because the bladder is filled with paint, pressure bladder 12 expands and presses against the surface of partition 14, creating positive pressure inside pressure bladder 12. Red paint begins to flow into pipe 39 through the opened valve and flows out steadily from pipe 39 to supply the production line. Pipe 4 10 is the cleaning pipe, and pipe 5 11 is the paint pipe. Pipe 4 is connected to pressure bladder 12, and pipe 2 5 is connected to pressure bladder 26. The output shaft of drive motor 2 is connected to a drive boom 30. A rolling contact head plate 8 31 is installed at the end of the boom. When motor 2 receives a control signal and rotates, it pushes the boom through boom 2 30 and plate 8 31. Plate 7 29 overcomes the resistance of spring 32, blocking pipe 1 4 or pipe 2 5, thereby changing the connection relationship of the internal flow channel of the box, blocking the port of pipe 1 4, disconnecting the coating of pipe 5 11 from pipe 1 4, and at the same time connecting the cleaning medium of pipe 4 10 with pipe 2 5. At this time, the cleaning medium is pumped into box 1 3 through pipe 4 10. The cleaning medium cannot enter pressure bladder 1 12, but enters pipe 2 5 through the connected flow channel, and is injected into pressure bladder 2 16 through pipe port 13. The cleaning medium fills pressure bladder 2 16, soaking and rinsing its inner wall. After cleaning, ensure that pressure bladder 1 12 is still feeding normally, and then control motor 2 19 to rotate, so that protrusion 21 leaves the valve of pressure bladder 1 12. The valve is closed under the action of spring 23, and continues to rotate until it lifts the valve at the bottom of pressure bladder 2 16. Pressure bladder 2 16 contains cleaning waste liquid. After the valve is opened, the waste liquid flows into pipe 7 28 under the action of gravity, and the cleaning waste liquid is discharged from pipe 7 28 to the wastewater system.

[0042] After the evacuation is completed, motor 219 is activated to close the bottom valve of pressure bladder 216. Then, control pipe 511 of box 13 is connected to pipe 4, and pressure bladder 12 is injected through pipe 4. When pressure bladder 12 is full, control box 13 connects pipe 410 to pipe 25 to clean pressure bladder 216.

[0043] It is conceivable that the partition 14 can be divided into multiple layers along the axial direction of the main tank 7, with each layer equipped with an independent pair of pressure bladders (such as pressure bladder one 12 and pressure bladder two 16), and the layers are isolated from each other by partitions. Each pair of pressure bladders shares or independently configures a set of linkage valve mechanism and drive motor two 19. Through the layered design, the independent storage and alternating supply of various coatings (such as primer, topcoat, and pattern coating) can be realized, which is suitable for multi-color or multi-layer coating processes.

[0044] The inlet and outlet of each pressure bladder can be connected to box 3 through independent pipes. Box 3 is equipped with a multi-channel switching valve plate to realize independent control of each layer of coating and cleaning medium. The drive motor 19 can be equipped with multiple sets of protrusions 21 through the same turntable 20 to trigger the valves of different layers in sequence according to the program, so as to realize multi-layer synchronous or timed material supply and cleaning.

[0045] As a result, to meet the needs of multi-variety, small-batch production, the pressure bag can be designed as a quick-detachable module:

[0046] Quick-connect interface for the bladder: Sanitary quick-connect fittings (such as Tri-Clamp interfaces) are used between the top port 13 of the pressure bladder and the first and second pipes 4 and 5, respectively. Clamps or flanges are also used between the bottom port and the valve body 17.

[0047] Bag lifting structure: A guide rail or electric hoist is installed on the top of the main tank 7, which can be used to open the top cover 1 and lift the entire pressure bag module vertically out for offline cleaning, sterilization or replacement.

[0048] Diverse capsule materials: In addition to fluororubber, capsule modules made of different materials such as silicone and PTFE lining are also available to meet the compatibility requirements of different coatings (such as coatings containing strong solvents, high solid content, and high temperature coatings).

[0049] This structure facilitates quick switching of product colors or types, reduces downtime, and is beneficial for maintenance.

[0050] For scenarios with high coating costs or stringent environmental requirements, it is conceivable to incorporate designs that include waste material recycling and energy reuse:

[0051] Purging residual material inside the bladder: After the pressure bladder is emptied, clean compressed air or nitrogen is introduced through pipe 410 to purge the residual paint inside the bladder into pipe 39 and into the production system, thereby reducing paint waste.

[0052] Cleaning fluid circulation: The cleaning waste fluid discharged from pipe 728 is collected into a settling tank or filter, and after treatment, it is reused as primary cleaning medium for the next cleaning, reducing the consumption of fresh cleaning medium.

[0053] Heat exchange: A jacket is added to the outer wall or inside the main tank 7, through which warm or cooling water is circulated to maintain a constant temperature for the coating and keep its viscosity stable. Hot cleaning media can be used during cleaning to improve cleaning efficiency.

[0054] Achieving uninterrupted alternating operation: Utilizing a dual-pressure-bag design (one in use and one on standby, or one for feeding and one for cleaning), coupled with an automatic switching valve, allows for simultaneous paint supply and pressure-bag cleaning / preparation. This fundamentally eliminates the need for line-wide downtime caused by cleaning or color changing of a single feeding unit, significantly improving equipment utilization and production efficiency.

[0055] Rapid color change and product switching: Modular pressure bladders and integrated cleaning channels enable the rapid filling of empty bladders to be used when changing paint types (colors or types), and automatic cleaning of bladders that have just been used. This greatly shortens the preparation time for product switching and adapts to the flexible production needs of small batches and multiple varieties.

[0056] Eliminating cross-contamination: The pressure bladder, as an independent flexible container, physically isolates the coating from the equipment cavity (main tank). The smooth inner wall of the bladder is easy to clean, and combined with an efficient automatic cleaning program, it effectively avoids residual contamination between different batches or colors of coating, ensuring the consistency of product coating color and quality.

[0057] Stable output pressure: After the pressure bladder is filled with paint, it expands and its own elasticity applies a uniform and stable squeezing force to the contents, providing a smooth driving force for paint delivery. This is beneficial for the stable operation of the subsequent metering pump and for the coating head to obtain a uniform flow rate, thereby ensuring coating quality.

[0058] Good material compatibility: The pressure chamber can be made of solvent-resistant materials such as food-grade fluororubber, and the parts in contact with the coating (such as the sealing ring) are also made of chemically resistant materials, which can adapt to a variety of solvent-based or water-based coatings and extend the service life of the equipment.

[0059] The valve mechanism is ingenious and reliable: the bottom discharge valve adopts a mechanically linked top-opening design, driven by a single motor for rotation and sequential triggering. This structure is simple, durable, and has few potential failure points, avoiding synchronization and sealing problems that may arise from multiple independent solenoid valves. A spring reset ensures the valve automatically closes in the event of a power outage, ensuring safety and reliability.

[0060] Easy to clean and maintain: The inner wall of the main tank is mirror-polished, and the pressure bladder can be designed as a quick-release module for easy offline deep cleaning, inspection, or replacement. The integrated valve box centralizes complex flow channel switching into a maintainable unit, simplifying external piping.

[0061] Long life design: Key moving parts (such as protrusion 21 and plate 8 31) adopt rolling or wear-resistant contact to reduce wear; the sealing structure is reasonably designed to reduce the risk of leakage.

[0062] High degree of automation: The entire feeding, switching and cleaning process can be completed by controlling two motors (motor 12 controls fluid switching and motor 29 controls valve opening and closing), which reduces the intensity and technical requirements of manual operation and reduces human error.

[0063] Reduced paint and cleaning agent waste: The high-efficiency pressure bladder emptying mechanism, combined with functions such as residual material purging (extended design), minimizes paint residue within the bladder. The directional and efficient cleaning process, along with the ability to recycle the cleaning fluid (extended design), reduces raw material and consumable costs.

[0064] Compact structure and space saving: The vertical tank design occupies a small area, and the multi-layer or multi-bladder integrated design in the expansion scheme further improves the space utilization rate, making it especially suitable for occasions with limited factory space.

[0065] Through its innovative dual-pressure-bag alternating working structure, mechanical linkage valve mechanism, and integrated fluid switching system, it comprehensively solves industry pain points in traditional feeding methods, such as production efficiency bottlenecks, difficulties in cleaning and color changing, susceptibility to cross-contamination, and insufficient stability. It not only achieves continuous, high-quality, and automated production, but also demonstrates significant advantages in maintenance convenience, operating costs, intelligent upgrades, and system expansion, making it highly practical and economical.

[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A feeding device for producing coatings from disposable paper cups, characterized in that, include: Tank 1 (7), frame 1 (8) for supporting tank 1 (7) and top cover (1) provided on the surface of tank 1 (7); It also includes pipe 1 (4) and pipe 2 (5) disposed on the surface of tank 1 (7). The surface of pipe 1 (4) and pipe 2 (5) is provided with box 1 (3) for adjusting the pipe connection. The surface of box 1 (3) is provided with pipe 5 (11) and pipe 4 (10) as pigment inlets. The interior of tank 1 (7) is provided with partition (14). The surface of partition (14) is provided with pressure bladder 1 (12) and pressure bladder 2 (16). The surface of pressure bladder 1 (12) and pressure bladder 2 (16) is provided with pipe openings for connecting with pipe 1 (4) and pipe 2 (5). (13) The bottom of pressure bladder two (16) is provided with tube six (17), the inside of tube six (17) is provided with plate four (24), the surface of plate four (24) is provided with plate five (25), the bottom of partition plate (14) is provided with plate two (20), the surface of plate two (20) is provided with plate one (18), the bottom of tank one (7) is provided with tube seven (28) and tube three (9). When plate one (18) rotates, it lifts plate five (25), and pressure bladder one (12) and pressure bladder two (16) are connected to tube seven (28) and tube three (9).

2. The feeding equipment for producing coatings for disposable paper cups according to claim 1, characterized in that, The edge of the fifth plate (25) is provided with a sixth plate (27) for sealing the gap between the fourth plate (24) and the sixth tube (17).

3. The feeding equipment for producing coatings for disposable paper cups according to claim 1, characterized in that, The tube six (17) has a plate three (22) inside, and the surface of the plate three (22) has an elastic element one (23) that pushes the plate four (24) to reset.

4. The feeding equipment for producing coatings for disposable paper cups according to claim 1, characterized in that, The surface of the tube six (17) is provided with a groove one (26) for moving the plate one (18).

5. The feeding equipment for producing coatings for disposable paper cups according to claim 1, characterized in that, The surface of the first plate (18) is provided with a protrusion (21) that lifts the fifth plate (25). When the protrusion (21) lifts the fifth plate (25), the pigment inside the sixth tube (17) passes through the fourth plate (24).

6. The feeding equipment for producing coatings for disposable paper cups according to claim 1, characterized in that, The bottom of the partition (14) is provided with a motor (19) for driving the second plate (20) to rotate.

7. The feeding equipment for producing coatings for disposable paper cups according to claim 1, characterized in that, The box 1 (3) is provided with a plate 7 (29) for blocking tube 1 (4) and tube 2 (5), and the tube 1 (4) and tube 2 (5) are provided with an elastic element 2 (32) for pushing the plate 7 (29) to reset.

8. The feeding equipment for producing coatings for disposable paper cups according to claim 7, characterized in that, The box 1 (3) is equipped with a frame 2 (30) for pushing plate 7 (29) to block pipe 1 (4) and pipe 2 (5).

9. The feeding equipment for producing coatings for disposable paper cups according to claim 8, characterized in that, The surface of the second frame (30) is provided with a plate eight (31) to reduce friction with the surface of the seventh plate (29).

10. The feeding equipment for producing coatings for disposable paper cups according to claim 8, characterized in that, The surface of the box (3) is provided with a motor (2) that drives the frame (30) to rotate.

Images