A papermaking coating device for a gas guide groove release paper
Patent Information
- Application Number
- CN202522434403.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-17
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-17
AI Technical Summary
Traditional coating processes in the production of release paper for high-end fabrics suffer from problems such as yellowing and embrittlement of the coating due to the reaction of the atomized release agent with air, insufficient adhesion, long film-forming cycle, and the introduction of environmental impurities. These issues make it difficult to meet the stringent requirements of high-end fabrics for coating smoothness, adhesion, and cleanliness.
The paper coating device using a gas guide groove release paper combines a gas component and a temperature control component. It uses warm nitrogen gas to be blown directionally towards the coating area. Through the synergistic effect of the gas component and the temperature control component, the nitrogen temperature and flow rate are precisely controlled to ensure that the release agent forms a film quickly and enhances the adhesion between the coating and the substrate.
It enables rapid film formation of coatings, improves coating smoothness and adhesion, shortens the film formation cycle, and ensures high-quality and stable production of high-end fabric coatings.
Smart Images

Figure CN224930879U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of papermaking technology, specifically to a papermaking coating device for release paper with an air guide groove. Background Technology
[0002] In industrial production and daily life, release paper is widely used in tapes, labels, electronic components and medical consumables due to its anti-stick and temperature resistance properties. The coating process directly determines its surface smoothness, adhesion and anti-stick performance, and is the core process to ensure product quality.
[0003] In the application of release agents to high-end fabrics, traditional open-air processes can easily lead to the atomized release agent reacting with the air, resulting in yellowing and brittleness of the coating, insufficient adhesion, and easy detachment. The lack of directional airflow assistance causes uneven dispersion of release agent droplets, accumulation of adhesive that clogs channels, and difficulty in dispersing volatiles, which prolongs the film formation cycle. The open environment also makes it easy for dust and impurities to mix in, increasing coating defects and reducing product qualification rate. This makes it difficult to meet the stringent requirements of high-end fabrics for coating smoothness, adhesion, and cleanliness. Therefore, we need to propose a paper coating device for release paper with air guide grooves. Utility Model Content
[0004] The purpose of this invention is to provide a paper coating device for release paper with air guide grooves, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a paper coating device for air-guided groove release paper, comprising a conveying table, a housing, and a conveying roller, wherein the conveying roller is installed on the top of the conveying table, the housing is installed above the conveying table, and an electric slide is installed on the inner wall of the housing;
[0006] The top of the housing is equipped with a gas assembly for assisting the release agent to form a film quickly and enhancing the adhesion between the coating and the substrate. One end of the gas assembly extends into the interior of the housing.
[0007] The housing is equipped with a temperature control component for precise temperature control and film formation in conjunction with the gas component. One end of the temperature control component is connected to one end of the gas component.
[0008] Preferably, the gas assembly includes a nitrogen cylinder and a first filling pipe. The nitrogen cylinder is installed on the top of the housing, and one end of the nitrogen cylinder is connected to one end of the first filling pipe. An electric cylinder is installed on the surface of the electric slide, and an air outlet plate is connected to the piston end of the electric cylinder.
[0009] Preferably, the interior of the air outlet plate is hollow, the end of the first inflation tube away from the nitrogen cylinder extends into the interior of the shell and communicates with one side of the air outlet plate, an air-assisted release agent nozzle is installed at the bottom center of the air outlet plate, several air blowing pipes are connected to the bottom of the air outlet plate, and a small electromagnetic flow valve is installed on the surface of the first inflation tube.
[0010] Preferably, a release agent tank and a water pump are installed on the top of the housing. The pumping end of the water pump is connected to one side of the release agent tank, and the outlet end of the water pump is connected to a second outlet pipe. The end of the second outlet pipe away from the water pump extends into the interior of the housing and is connected to one end of the air-assisted release agent nozzle. A one-way valve is installed on the surface of the second outlet pipe.
[0011] Preferably, the temperature control component includes an electric heating element, which is installed inside the housing and located on the surface of the first air inlet pipe. A controller is installed on the top of the housing, and a temperature sensor and a wind speed sensor are installed on the bottom of the air outlet plate.
[0012] Preferably, a position sensor and an infrared laser temperature sensor are installed on the inner wall of the housing before and after the gas-assisted release agent nozzle.
[0013] Preferably, the controller is electrically connected to a temperature sensor, a wind speed sensor, a position sensor, and an infrared laser temperature sensor, respectively. The controller is also electrically connected to an electric slide, an electric cylinder, an electric heating element, a water pump, and a small electromagnetic flow valve, respectively.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention utilizes a combination of gas and temperature control components to create optimal film-forming conditions. The heating element precisely regulates the nitrogen temperature, directing the warm nitrogen towards the coating area. This avoids slow film formation and clumping caused by low temperatures, while simultaneously enhancing the adhesion between the coating and the fabric. The warm airflow accelerates evaporation and dispersion, shortening the film-forming cycle. The two components complement each other, overcoming the limitations of a single function and simultaneously improving film-forming efficiency, coating smoothness, and adhesion, ensuring a high-quality and stable output of high-end fabric coatings. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic cross-sectional view of the shell structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the gas assembly structure of this utility model;
[0019] Figure 4 This utility model Figure 2A magnified structural diagram of area A in the middle.
[0020] In the diagram: 1. Conveyor table; 2. Housing; 3. Conveyor roller; 4. Nitrogen cylinder; 5. First inflation pipe; 6. Electric cylinder; 7. Air outlet plate; 8. Air-assisted release agent nozzle; 9. Air blowing pipe; 10. Small electromagnetic flow valve; 11. Release agent tank; 12. Water pump; 13. Second water outlet pipe; 14. One-way valve; 15. Electric heating element; 16. Controller; 17. Temperature sensor; 18. Wind speed sensor; 19. Infrared laser temperature sensor; 20. Position sensor; 21. Electric slide table. Detailed Implementation
[0021] 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.
[0022] Please see Figures 1-4 This utility model provides a technical solution: a paper coating device for release paper with air guide groove, including a conveyor table 1, a housing 2 and a conveyor roller 3. The conveyor table 1 provides the installation foundation for the conveyor roller 3 and the housing 2 and supports the operation of the whole equipment. The conveyor roller 3 is installed on the top of the conveyor table 1, and the housing 2 is installed above the conveyor table 1. The housing 2 provides installation space for the internal components and forms a closed working environment. An electric slide table 21 is installed on the inner wall of the housing 2. The electric slide table 21 drives the electric cylinder 6 and connected components to move horizontally.
[0023] A gas assembly for assisting the release agent to form a film quickly and enhancing the adhesion between the coating and the fabric is installed on the top of the housing 2. One end of the gas assembly extends into the interior of the housing 2. The gas assembly includes a nitrogen cylinder 4 and a first inflation tube 5. The nitrogen cylinder 4 is installed on the top of the housing 2 and provides a stable nitrogen source for the gas assembly. One end of the nitrogen cylinder 4 is connected to one end of the first inflation tube 5. An electric cylinder 6 is installed on the surface of the electric slide 21. The piston end of the electric cylinder 6 is connected to an air outlet plate 7. The electric cylinder 6 drives the air outlet plate 7 and related components to move up and down.
[0024] The interior of the air outlet plate 7 is hollow. The air outlet plate 7 is used to divert nitrogen and provide a mounting carrier for the nozzle and the air blowing pipe 9. The end of the first air filling pipe 5 away from the nitrogen cylinder 4 extends into the interior of the housing 2 and is connected to one side of the air outlet plate 7. The first air filling pipe 5 is used to transport nitrogen. An air-assisted release agent nozzle 8 is installed at the bottom center of the air outlet plate 7. The air-assisted release agent nozzle 8 is used to atomize and spray the release agent onto the fabric surface. Several air blowing pipes 9 are connected to the bottom of the air outlet plate 7. The air blowing pipes 9 are used to evenly blow nitrogen to the release agent spraying area and the coating surface. A small electromagnetic flow valve 10 is installed on the surface of the first air filling pipe 5. The small electromagnetic flow valve 10 receives a signal from the controller 16 to adjust the nitrogen delivery flow rate.
[0025] The top of the housing 2 is equipped with a release agent tank 11 and a water pump 12. The release agent tank 11 provides a storage container for release agent spraying. The water pump 12's pumping end is connected to one side of the release agent tank 11. The water pump 12's outlet end is connected to a second water outlet pipe 13. The second water outlet pipe 13 is connected to an air-assisted release agent nozzle 8 for conveying release agent. The end of the second water outlet pipe 13 away from the water pump 12 extends into the interior of the housing 2 and is connected to one end of the air-assisted release agent nozzle 8. A one-way valve 14 is installed on the surface of the second water outlet pipe 13. The one-way valve 14 prevents release agent backflow and ensures stable conveying direction.
[0026] The housing 2 is equipped with a temperature control component for precise temperature control and film formation in conjunction with the gas component. One end of the temperature control component is connected to one end of the gas component. The temperature control component includes an electric heating tube 15, which is installed inside the housing 2 and located on the surface of the first gas filling tube 5. The electric heating tube 15 receives a signal from the controller 16 to heat the nitrogen in the first gas filling tube 5. The controller 16 is installed on the top of the housing 2. A temperature sensor 17 and a wind speed sensor 18 are installed at the bottom of the air outlet plate 7. The detection end of the temperature sensor 17 is installed at the bottom of the air outlet plate 7 to detect the temperature of the release agent spraying area and feed it back to the controller 16. The detection end of the wind speed sensor 18 is installed at the bottom of the air outlet plate 7 to detect the wind speed of the nitrogen blown out by the air blowing pipe 9 and feed it back to the controller 16.
[0027] The inner wall of the housing 2 is equipped with a position sensor 20 and an infrared laser temperature sensor 19, located before and after the gas-assisted release agent nozzle 8. The detection end of the position sensor 20 is installed on the inner wall of the housing 2 and is located in front of the gas-assisted release agent nozzle 8 to detect the position information of the fabric and feed it back to the controller 16. The detection end of the infrared laser temperature sensor 19 is installed on the inner wall of the housing 2 and is located behind the gas-assisted release agent nozzle 8 to detect the temperature of the coating and fabric surface after the release agent is sprayed and feed it back to the controller 16.
[0028] The controller 16 is electrically connected to the temperature sensor 17, the wind speed sensor 18, the position sensor 20 and the infrared laser temperature sensor 19 respectively. The controller 16 is also electrically connected to the electric slide 21, the electric cylinder 6, the electric heating tube 15, the water pump 12 and the small electromagnetic flow valve 10 respectively.
[0029] The fabric is smoothly conveyed on the conveyor table 1 by the conveyor roller 3. After the detection end of the position sensor 20 detects that the fabric has reached the preset position in front of the air-assisted release agent nozzle 8, it feeds the signal back to the controller 16. The controller 16 starts the electric slide table 21 and the electric cylinder 6, which drives the air outlet plate 7, the air-assisted release agent nozzle 8, and the air blowing pipe 9 to adjust to the horizontal position and height suitable for the fabric. At the same time, the controller 16 starts the water pump 12. The release agent in the release agent tank 11 is delivered to the air-assisted release agent nozzle 8 through the second water outlet pipe 13 and the one-way valve 14 and atomized and sprayed onto the surface of the fabric.
[0030] Nitrogen gas in nitrogen cylinder 4 is delivered through the first filling pipe 5. The small electromagnetic flow valve 10 receives a signal from the controller 16 to adjust the nitrogen flow rate. After being split by the air outlet plate 7, the nitrogen gas is synchronously blown to the release agent spraying area through the air blowing pipe 9. The electric heating tube 15 receives a signal from the controller 16 to heat the nitrogen gas in the first filling pipe 5. The detection end of the temperature sensor 17 detects the temperature of the release agent spraying area in real time and feeds it back to the controller 16. The detection end of the wind speed sensor 18 detects the wind speed of the nitrogen gas blown out of the air blowing pipe 9 in real time and feeds it back to the controller 16. The detection end of the infrared laser temperature sensor 19 is located behind the gas-assisted release agent nozzle 8 to detect the temperature of the coating and fabric surface after spraying in real time and feeds it back to the controller 16.
[0031] The controller 16 processes the feedback data from various sensors through algorithm linkage, dynamically adjusting the moving speed of the electric slide table 21, the lifting height of the electric cylinder 6, the heating power of the electric heating tube 15, the delivery rate of the water pump 12, and the nitrogen flow rate of the small electromagnetic flow valve 10, to ensure that the release agent forms a film quickly and that the coating adheres to the fabric to the required standard, and completes precise and coordinated operation in the closed working environment formed by the housing 2 throughout the process.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A paper coating apparatus for air-guided groove release paper, comprising a conveyor table (1), a housing (2), and a conveyor roller (3), characterized in that: The conveying roller (3) is installed on the top of the conveying table (1), the housing (2) is installed above the conveying table (1), and the inner wall of the housing (2) is equipped with an electric slide (21). The top of the housing (2) is equipped with a gas assembly for assisting the release agent to form a film quickly and enhancing the adhesion between the coating and the substrate. One end of the gas assembly extends into the interior of the housing (2). The housing (2) is equipped with a temperature control component for precise temperature control and film formation in conjunction with the gas component. One end of the temperature control component is connected to one end of the gas component.
2. The paper coating apparatus for air-guided groove release paper according to claim 1, characterized in that: The gas assembly includes a nitrogen cylinder (4) and a first filling pipe (5). The nitrogen cylinder (4) is installed on the top of the housing (2). One end of the nitrogen cylinder (4) is connected to one end of the first filling pipe (5). An electric cylinder (6) is installed on the surface of the electric slide (21). The piston end of the electric cylinder (6) is connected to an air outlet plate (7).
3. The paper coating apparatus for air-guiding groove release paper according to claim 2, characterized in that: The interior of the air outlet plate (7) is hollow. The end of the first air filling pipe (5) away from the nitrogen cylinder (4) extends into the interior of the shell (2) and is connected to one side of the air outlet plate (7). An air-assisted release agent nozzle (8) is installed at the bottom center of the air outlet plate (7). Several air blowing pipes (9) are connected to the bottom of the air outlet plate (7). A small electromagnetic flow valve (10) is installed on the surface of the first air filling pipe (5).
4. The paper coating apparatus for air-guiding groove release paper according to claim 3, characterized in that: The top of the housing (2) is equipped with a release agent tank (11) and a water pump (12). The pumping end of the water pump (12) is connected to one side of the release agent tank (11). The outlet end of the water pump (12) is connected to a second outlet pipe (13). The end of the second outlet pipe (13) away from the water pump (12) extends into the interior of the housing (2) and is connected to one end of the air-assisted release agent nozzle (8). A one-way valve (14) is installed on the surface of the second outlet pipe (13).
5. The paper coating apparatus for air-guided groove release paper according to claim 4, characterized in that: The temperature control component includes an electric heating tube (15), which is installed inside the housing (2) and on the surface of the first air inlet tube (5). A controller (16) is installed on the top of the housing (2), and a temperature sensor (17) and a wind speed sensor (18) are installed on the bottom of the air outlet plate (7).
6. The paper coating apparatus for air-guiding groove release paper according to claim 5, characterized in that: The inner wall of the housing (2) is equipped with a position sensor (20) and an infrared laser temperature sensor (19) at the front and rear of the gas-assisted release agent nozzle (8).
7. The paper coating apparatus for air-guiding groove release paper according to claim 6, characterized in that: The controller (16) is electrically connected to the temperature sensor (17), wind speed sensor (18), position sensor (20) and infrared laser temperature sensor (19), respectively. The controller (16) is also electrically connected to the electric slide (21), electric cylinder (6), electric heating tube (15), water pump (12) and small electromagnetic flow valve (10), respectively.
