A five-roll coating apparatus for solventless silicon coating
By adopting a combination structure of mounting base and scraper, as well as a motor-driven rotating shaft and propulsion blades in the five-roller coating equipment, the problems of soft scraper deformation and coating sedimentation are solved, achieving efficient scraping and stable viscosity coating effect, and improving coating quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU HONGKE ADVANCED MATERIAL TECH CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-21
AI Technical Summary
In existing five-roller coating equipment, the soft doctor blade is prone to deformation, which reduces the scraping effect, and the material residue accumulates in the reverse direction, affecting the coating quality. In addition, the high viscosity and heat-sensitive characteristics of solvent-free silicone coating liquid are difficult to utilize effectively.
It adopts a combination structure of mounting base and scraper, combined with motor-driven rotating shaft and pusher blades, along with scraper rod and guide block to ensure scraping effect and prevent paint sedimentation. The heating coil maintains viscosity stability and improves coating quality.
It improves the scraping effect, prevents material from piling up in the opposite direction, maintains stable coating viscosity, and enhances coating quality and equipment practicality.
Smart Images
Figure CN224525125U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of release film production, and in particular to a solvent-free silicone coating five-roller coating equipment. Background Technology
[0002] Release film, also known as peeling film or separation film, is a material used in various industrial and packaging fields. Its main function is to isolate and prevent sticking during manufacturing and processing, avoiding the adhesion of products to equipment or other materials. Its surface is treated with silicone oil, that is, coated with a silicone oil coating, which reduces the surface adhesion of the release film and allows it to separate from the product better.
[0003] Existing traditional five-roller coating equipment often uses soft-material doctor blades to scrape the material off the surface of the metering roller. However, soft doctor blades are prone to deformation, which reduces their scraping effect. This results in some material remaining on the surface of the metering roller and accumulating in the upper part of the gap between the coating roller and the metering roller as the metering roller rotates, thus reducing the coating quality and making it impractical. At the same time, solvent-free silicone coating liquids have characteristics such as ultra-high viscosity (viscosity ≥ 10,000 cP at room temperature), thixotropy (easily causes filler sedimentation when standing), and heat sensitivity (requires constant temperature of 80±5℃ to maintain fluidity). This necessitates certain measures to ensure the normal use of the coating. Therefore, a solvent-free silicone coating five-roller coating equipment is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a solvent-free silicone coating five-roller coating equipment, which aims to improve the problem in the prior art where the soft doctor blade is prone to deformation, resulting in a reduction in its scraping effect. This leads to some material remaining on the surface of the metering roller, and as the metering roller rotates, it accumulates in the upper part of the gap between the coating roller and the metering roller, thus reducing the coating quality.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a solvent-free silicone coating five-roller coating equipment, comprising a mounting frame, a coating component disposed in the middle of the mounting frame, a collection component disposed in the lower part of the mounting frame, a material storage component disposed in the left side of the mounting frame, the collection component comprising a collection box, a connecting frame fixedly connected to the rear side of the collection box, the collection box and the connecting frame being fixedly connected to the mounting frame, a mounting base disposed in the upper part of the connecting frame, a first scraper fixedly connected to the top of the mounting base, a second scraper fixedly connected to the rear top surface of the mounting base, a protective sleeve fixedly connected to the upper part of the outer wall of the second scraper, a guide port opened in the lower part of the first scraper, and guide blocks fixedly connected to the left and right sides of the rear side of the first scraper.
[0006] As a further description of the above technical solution: The second scraper is set at an angle.
[0007] As a further description of the above technical solution: A mounting block is fixedly connected to the rear part of the bottom surface of the mounting base, and connecting rods are fixedly connected to the left and right parts of the bottom surface of the mounting base.
[0008] As a further description of the above technical solution: The inner wall of the connecting frame has an installation groove in the middle, and the mounting block is movably connected to the installation groove by bolts. The bottom surface of the inner wall of the connecting frame has connection grooves on both the left and right sides, and the connecting rod is movably connected to the connection groove.
[0009] As a further description of the above technical solution: The coating assembly includes a coating roller, a back roller is provided at the upper part of the coating roller, a metering roller is provided at the rear part of the coating roller, a feed roller is provided at the lower front part of the back roller, and a discharge roller is provided at the upper front part of the coating roller. The coating roller, metering roller, back roller, feed roller, and discharge roller are all movably connected to the mounting frame.
[0010] As a further description of the above technical solution: The material storage assembly includes a housing, with a feed pipe fixedly connected to the top of the housing, a discharge pipe fixedly connected to the bottom of the housing, and a heating coil disposed in the middle of the housing.
[0011] As a further description of the above technical solution: A motor is fixedly connected to the top of the outer casing. The output end of the motor is fixedly connected to a rotating shaft via a coupling. The rotating shaft passes through the outer casing and is rotatably connected. Scraper rods are fixedly connected to the left and right sides of the outer wall of the rotating shaft. Flow-pushing blades are installed at the bottom of the motor.
[0012] As a further description of the above technical solution: A pump body is installed at the lower part of the discharge pipe, and a connecting pipe is installed at the output end of the pump body. The connecting pipe passes through and is fixedly connected to the mounting frame and the collection box, and the connecting pipe is connected to the collection box.
[0013] This utility model has the following beneficial effects: 1. In this utility model, by setting up the mutual cooperation between the mounting base and components such as the first scraper, the guide port, the guide block, the second scraper, and the protective sleeve, the collecting component can better scrape off the material on the metering roller, prevent the material from accumulating in the reverse direction and affecting the coating quality. At the same time, by setting up the mutual cooperation between the mounting base and the connecting frame, the replacement of the scraper is more convenient, faster, and more practical.
[0014] 2. In this utility model, by setting up the cooperation between components such as motor, rotating shaft, push blade and scraper, the solvent-free silicone coating liquid can maintain a suitable viscosity and avoid coating sedimentation, stratification and other situations, which can effectively improve the practicality of the device. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a solvent-free silicone coating five-roller coating equipment proposed in this utility model; Figure 2 This is a cross-sectional three-dimensional structural diagram of the mounting frame and collection component of a solvent-free silicone coating five-roller coating equipment proposed in this utility model. Figure 3 This is a three-dimensional structural diagram of the rear side of the collection component of a solvent-free silicon coating five-roller coating equipment proposed in this utility model. Figure 4 This is a three-dimensional structural diagram showing the disassembled mounting base and connecting frame of a solvent-free silicone coating five-roller coating equipment proposed in this utility model. Figure 5 This utility model proposes a solvent-free five-roller coating equipment for silicone coating. Figure 4 A magnified schematic diagram of the three-dimensional structure at point A in the middle; Figure 6 This is a schematic diagram of the overall front three-dimensional structure of the mounting base, scraper No. 1, and scraper No. 2 of a solvent-free silicone coating five-roller coating equipment proposed in this utility model. Figure 7 A schematic diagram of the overall upper three-dimensional structure of the mounting base, scraper No. 1, and scraper No. 2 of a solvent-free silicone coating five-roller coating equipment proposed in this utility model; Figure 8 This is a three-dimensional cross-sectional view of the outer shell of a solvent-free silicone coating five-roller coating equipment proposed in this utility model.
[0016] Legend: 1. Mounting frame; 2. Coating assembly; 3. Collection assembly; 4. Storage assembly; 5. Pump body; 21. Coating roller; 22. Metering roller; 23. Back roller; 24. Feeding roller; 25. Discharge roller; 31. Collection box; 32. Connecting frame; 33. Mounting base; 34. No. 1 scraper; 35. No. 2 scraper; 321. Connecting groove; 322. Mounting groove; 331. Connecting rod; 332. Mounting block; 341. Guide port; 342. Guide block; 351. Protective sleeve; 41. Outer shell; 42. Heating coil; 43. Motor; 44. Rotating shaft; 45. Push blade; 46. Scraper rod; 47. Discharge pipe; 48. Feed pipe; 51. Connecting pipe. Detailed Implementation
[0017] 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.
[0018] Reference Figure 1 - Figure 2 One embodiment of this utility model is a solvent-free silicone coating five-roller coating equipment, including a mounting frame 1 for connecting various components, a coating component 2 in the middle of the mounting frame 1 for silicone coating operation during release film production, a collection component 3 in the lower part of the mounting frame 1 for collecting excess silicone coating, and a storage component 4 in the left side of the mounting frame 1 for storing and conveying solvent-free silicone coating.
[0019] like Figure 3 - Figure 5 As shown, the collection assembly 3 includes a collection box 31, which is used to hold and contain silicone coating to facilitate coating by the coating roller 21. A connecting frame 32 is fixedly connected to the rear side of the collection box 31, which is used to cooperate with the installation of the mounting base 33. The collection box 31 and the connecting frame 32 are fixedly connected to the mounting frame 1. The upper part of the connecting frame 32 is provided with the mounting base 33, the top of which is inclined to facilitate the drainage of excess coating back into the collection box 31. A first scraper 34 is fixedly connected to the top of the mounting base 33. The upper part of the scraper is made of soft silicone or rubber material, which can scrape off most of the coating on the metering roller 22. A second scraper 35 is fixedly connected to the rear of the top surface of the mounting base 33. The scraper 35 can be a metal plate or plastic plate with a certain hardness, which is used to further scrape off the coating on the metering roller 22.
[0020] Please see Figure 6 - Figure 7The second scraper 35 is inclined, allowing it to better fit the surface of the metering roller 22, thus facilitating the scraping of material more effectively. A protective sleeve 351, made of soft materials such as rubber or silicone, is fixedly connected to the upper part of the outer wall of the second scraper 35 to protect the area between the metering roller 22 and the second scraper 35. A guide port 341 is provided at the lower part of the first scraper 34 to guide the material scraped off by the second scraper 35 to the collection box 31. Guide blocks 342 are fixedly connected to the left and right rear sides of the first scraper 34 to guide the solvent-free silicone coating material to the guide port. 341. A mounting block 332 is fixedly connected to the rear part of the bottom surface of the mounting base 33, which is used to cooperate in the installation between the mounting base 33 and the connecting frame 32. A connecting rod 331 is fixedly connected to the left and right parts of the bottom surface of the mounting base 33. An installation groove 322 is opened in the middle of the inner wall of the connecting frame 32. The mounting block 332 and the installation groove 322 are movably connected by bolts. A connecting groove 321 is opened on the left and right parts of the bottom surface of the inner wall of the connecting frame 32. The connecting rod 331 is movably connected to the connecting groove 321. The connecting groove 321 has a certain limiting and guiding effect on the connecting rod 331, so that the connecting rod 331 can only move back and forth.
[0021] like Figure 2 As shown, the coating assembly 2 includes a coating roller 21, which is used to cooperate with the coating material. A back roller 23 is provided on the upper part of the coating roller 21, which is used to cooperate with the conveying of the release film material. A certain gap is left between the back roller 23 and the coating roller 21 to cooperate with the movement of the release film and the coating of the paint. A metering roller 22 is provided at the rear of the coating roller 21, which rotates in the opposite direction to the coating roller 21. A certain gap is left between the metering roller 22 and the coating roller 21 to cooperate with the control of the amount of paint. A feed roller 24 is provided at the lower front of the back roller 23, which is used to cooperate with the feeding of the release film. A discharge roller 25 is provided at the upper front of the coating roller 21, which is used to cooperate with the discharge of the coated release film. The coating roller 21, metering roller 22, back roller 23, feed roller 24, and discharge roller 25 are all movably connected to the mounting frame 1.
[0022] Please see Figure 8The material storage assembly 4 includes a housing 41. A feed pipe 48 is fixedly connected to the top of the housing 41 for feeding materials. A discharge pipe 47 is fixedly connected to the bottom of the housing 41 for discharging the material required for coating. A valve is installed inside the discharge pipe 47. A heating coil 42 is located in the middle of the housing 41 to maintain the solvent-free silicone coating at a suitable viscosity. A motor 43 is fixedly connected to the top of the housing 41 to drive a rotating shaft 44. This is a slow-speed motor to facilitate low-speed mixing of the materials. The output end of the motor 43 is fixedly connected to the rotating shaft 44 via a coupling, which connects various components. The rotating shaft 44 is connected to the outer casing. The shell 41 is rotatably connected through it. The left and right sides of the outer wall of the rotating shaft 44 are fixedly connected to scraper rods 46, which are used to prevent material from accumulating on the inner wall of the shell 41. The lower part of the motor 43 is equipped with a pusher blade 45, which is used to break up the high viscosity zone in the center of the material to avoid thermal stratification and sedimentation problems. The lower part of the discharge pipe 47 is equipped with a pump body 5, which is used to pump the material. The output end of the pump body 5 is equipped with a connecting pipe 51, which is used to connect the storage component 4 and the collection box 31. The connecting pipe 51 is rotatably connected through the mounting frame 1 and the collection box 31, and the connecting pipe 51 is connected to the collection box 31.
[0023] Working principle: When in use, the solvent-free silicone coating is first fed into the housing 41 through the feed pipe 48. At the same time, the heating coil 42 is turned on to maintain the temperature inside the housing 41. Simultaneously, the motor 43 is turned on, which will drive the rotating shaft 44. The pusher blades 45 and the scraper rod 46, which are fixed to the rotating shaft 44, will also be driven to rotate. The scraper rod 46 will scrape off the material stuck on the inner wall of the housing 41. At the same time, the pusher blades 45 will stir and mix the material, thereby preventing the material from stratifying or depositing.
[0024] Material can be conveyed to pump body 5 through discharge pipe 47, and then pumped by pump body 5 to collection box 31 through connecting pipe 51. When coating roller 21 rotates, material in collection box 31 will adhere to its surface. Since metering roller 22 rotates in the opposite direction and there is a certain gap between metering roller 22 and coating roller 21, metering roller 22 will carry excess material away from coating roller 21, thereby leaving a suitable amount of silicone coating on the surface of coating roller 21. At the same time, back roller 23 will convey release film coating roller 21. The coating on the surface of the centrifugal membrane is applied, and when the metering roller 22 rotates, the rubber or silicone flexible scraper on the first scraper 34 scrapes off the material on the metering roller 22. The material is guided into the collection box 31 through the mounting base 33. At the same time, the second scraper 35 further scrapes off the material remaining on the metering roller 22. After the material falls onto the mounting base 33, it is guided by the guide block 342 to the guide port 341, and finally guided into the collection box 31 by the mounting base 33.
[0025] If the scraper needs to be replaced, simply loosen the bolts between the mounting block 332 and the connecting frame 32, then pull the mounting seat 33 backward to disengage the mounting block 332 and the connecting rod 331 from the mounting groove 322 and the connecting groove 321. This allows the mounting seat 33 and the first scraper 34 and the second scraper 35 on it to be removed from the connecting frame 32. Then, install the new mounting seat 33 on the connecting frame 32, insert the connecting rod 331 into the connecting groove 321, and insert the mounting block 332 into the mounting groove 322. Finally, fix the mounting block 332 to the connecting frame 32 with bolts.
[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A solvent-free silicone coating five-roller coating apparatus, comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with a coating component (2) in the middle, a collection component (3) is provided at the bottom of the mounting frame (1), and a storage component (4) is provided on the left side of the mounting frame (1). The collection component (3) includes a collection box (31), a connecting frame (32) is fixedly connected to the rear side of the collection box (31), the collection box (31) and the connecting frame (32) are fixedly connected to the mounting frame (1), a mounting base (33) is provided on the upper part of the connecting frame (32), a first scraper (34) is fixedly connected to the top of the mounting base (33), and a second scraper (35) is fixedly connected to the rear part of the top surface of the mounting base (33). The upper part of the outer wall of the second scraper (35) is fixedly connected to a protective sleeve (351), the lower part of the first scraper (34) is provided with a guide port (341), and the left and right sides of the rear side of the first scraper (34) are fixedly connected to guide blocks (342).
2. The solvent-free silicone coating five-roller coating equipment according to claim 1, characterized in that: The second scraper (35) is set at an angle.
3. The solvent-free silicone coating five-roller coating equipment according to claim 1, characterized in that: The mounting base (33) has a mounting block (332) fixedly connected to the rear part of its bottom surface, and a connecting rod (331) is fixedly connected to the left and right parts of the bottom surface of the mounting base (33).
4. The solvent-free silicone coating five-roller coating equipment according to claim 3, characterized in that: The inner wall of the connecting frame (32) has an installation groove (322) in the middle. The mounting block (332) is movably connected to the installation groove (322) by bolts. The bottom surface of the inner wall of the connecting frame (32) has a connecting groove (321) on both the left and right sides. The connecting rod (331) is movably connected to the connecting groove (321).
5. The solvent-free silicone coating five-roller coating equipment according to claim 1, characterized in that: The coating assembly (2) includes a coating roller (21), a back roller (23) is provided on the upper part of the coating roller (21), a metering roller (22) is provided on the rear part of the coating roller (21), a feeding roller (24) is provided on the lower front part of the back roller (23), and a discharge roller (25) is provided on the upper front part of the coating roller (21). The coating roller (21), metering roller (22), back roller (23), feeding roller (24), and discharge roller (25) are all movably connected to the mounting frame (1).
6. The solvent-free silicone coating five-roller coating equipment according to claim 1, characterized in that: The storage assembly (4) includes a housing (41), with a feed pipe (48) fixedly connected to the top of the housing (41), a discharge pipe (47) fixedly connected to the bottom of the housing (41), and an electric heating coil (42) provided in the middle of the housing (41).
7. The solvent-free silicone coating five-roller coating equipment according to claim 6, characterized in that: A motor (43) is fixedly connected to the top of the outer shell (41). The output end of the motor (43) is fixedly connected to a rotating shaft (44) via a coupling. The rotating shaft (44) passes through and is rotatably connected to the outer shell (41). Scraping rods (46) are fixedly connected to the left and right sides of the outer wall of the rotating shaft (44). A pusher blade (45) is installed at the bottom of the motor (43).
8. The solvent-free silicone coating five-roller coating equipment according to claim 7, characterized in that: A pump body (5) is installed at the lower part of the discharge pipe (47), and a connecting pipe (51) is installed at the output end of the pump body (5). The connecting pipe (51) is connected to the mounting bracket (1) and the collection box (31) through and fixedly connected. The connecting pipe (51) is connected to the collection box (31).