Coating machine for matt film production
By improving the structural design of the coating machine and adopting a dual-cavity thrombolytic conduit and scraper cleaning, the problems of uneven coating thickness and air mixing were solved, thus improving the yield of matte film.
Patent Information
- Application Number
- CN202520095855.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-16
AI Technical Summary
Existing coating machines used for matte film production have poor coating thickness uniformity, are prone to defects, and air mixing during the coating process causes bubbles and particles, reducing the yield.
The dual-lumen thrombolytic catheter coating machine includes components such as a positioning plate, a fixed cylinder, a roller, an exhaust port, a support plate, a moving plate, a motor, a turntable, a belt, and a scraper. Through the transmission mechanism and scraper cleaning, it ensures the uniformity and cleanliness of the coating and reduces bubbles and particles.
It improves the uniformity and cleanliness of the coating, reduces the occurrence of bubbles and particles, and increases the yield of matte films.
Smart Images

Figure CN223775258U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating machine technology, and in particular to a coating machine for producing matte film. Background Technology
[0002] A coating machine is a device that evenly coats liquid coatings onto the surface of a strip material to create a matte film. Its purpose is to change the surface properties of the matte film material and give it better adhesion, water resistance, barrier properties, and conductivity.
[0003] A coating machine mainly consists of an unwinding bracket and a tension control system. It achieves uniform coating of paint through a coating head. In existing coating machines used for matte film production, although the coating machines have certain thickness adjustment devices, it is difficult to achieve completely uniform coating thickness across the entire matte film surface in traditional production. When the coating speed is fast, the paint viscosity is unstable, or the coating head experiences slight wear, the coating thickness varies at different locations, which can easily lead to defects. Air ingress during the coating process and insufficient cleanliness of the coating head can cause bubbles and particles to appear on the matte film surface, reducing the product yield. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a coating machine for matte film production, which aims to improve the existing technology where the coating thickness varies at different locations, easily causing defects, and the air mixing and insufficient cleanliness of the coating head during the coating process cause bubbles and particles on the surface of the matte film, reducing the product yield.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a coating machine for producing a matte film for a double-lumen thrombolytic catheter, comprising a positioning plate, a fixed cylinder fixedly connected to the right side of the inner wall of the positioning plate, a roller rotatably connected to the inner wall of the fixed cylinder, a fixed plate fixedly connected to the middle of the inner wall of the positioning plate, multiple vent holes opened on the outer wall of the fixed plate, a support plate fixedly connected to the rear side of the outer wall of the positioning plate, a movable plate slidably connected to the middle of the inner wall of the support plate, a second motor fixedly connected to the right side of the outer wall of the movable plate, a turntable fixedly connected to the output end of the second motor, a belt rotatably connected to the outer wall of the first turntable, a second turntable rotatably connected to the left side of the inner wall of the movable plate, the first turntable being connected to the second turntable via a belt, a fixed block fixedly connected to one side of the outer wall of the belt, an electric push rod fixedly connected to the front side of the outer wall of the fixed block, a scraper fixedly connected to the bottom of the outer wall of the electric push rod, and a rolling mechanism fixedly connected to the left side of the inner wall of the positioning plate, the rolling mechanism being used for conveying and rolling the matte film.
[0006] As a further description of the above technical solution:
[0007] The rolling mechanism includes a motor, which is fixedly connected to the front side of the outer wall of the positioning plate. A connecting rod is fixedly connected to the output end of the motor, and a gear is fixedly connected to the rear end of the connecting rod. A cylindrical tube extends through the outer wall of the gear, and a groove is formed at the bottom of the inner wall of the cylindrical tube. Multiple gears are rotatably connected to the bottom of the inner wall of the cylindrical tube. The top gear is meshed with gears 1 and 2. Multiple gears are rotatably connected to the bottom of the inner wall of the cylindrical tube, and the bottom gear is meshed with gears 1 and 3. A roller is fixedly connected to an adjacent side of each of the multiple gears 2.
[0008] As a further description of the above technical solution:
[0009] A cover plate is rotatably connected to the top of the outer wall of the cylindrical tube.
[0010] As a further description of the above technical solution:
[0011] Support feet are fixedly connected to the four corners at the bottom of the positioning plate.
[0012] As a further description of the above technical solution:
[0013] A storage box is installed on the front side of the outer wall of the positioning plate.
[0014] As a further description of the above technical solution:
[0015] The inner wall of the storage box is threaded with bolts on the rear side.
[0016] As a further description of the above technical solution:
[0017] An auxiliary wheel is rotatably connected to the left side of the inner wall of the positioning plate.
[0018] As a further description of the above technical solution:
[0019] A support frame is fixedly connected to the bottom of the outer wall of the motor.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the positioning plate has a fixed plate with exhaust holes in the middle to improve coating efficiency. The rear support plate of the outer wall provides top structural support. The moving plate is slidably connected in the middle of the inner wall. The right side of the outer wall is connected to a second motor to drive left and right movement. The output end of the motor is connected to a turntable, which is driven by the second turntable through a belt to form a transmission mechanism. The fixed block is connected to an electric push rod, and the bottom is connected to a scraper for equipment cleaning and maintenance, ensuring uniform and flat coating, reducing air mixing, improving cleanliness, reducing bubbles and particles, and increasing the yield.
[0022] 2. In this utility model, motor one is installed on the front of the outer side of the positioning plate, driving the internal structure to rotate and transmitting force through the connecting rod. The connecting rod is connected to gear one to ensure smooth rotation. Gear one passes through the cylindrical tube to ensure sealing. There is a groove at the bottom of the tube to facilitate the passage of the middle part and ensure comprehensive processing. Gear one meshes with top gear two and bottom gear one to ensure synchronous rotation. Gear two fixes roller one on one side and roller two on the other side to make the matte film coating uniform and compact. Attached Figure Description
[0023] Figure 1 This is a perspective view of a coating machine for producing matte film according to the present invention.
[0024] Figure 2 This is a top view of a coating machine for producing matte film according to the present invention.
[0025] Figure 3 This is a structural exploded view of a coating machine for producing matte film according to the present invention;
[0026] Figure 4 This is a partial structural exploded view of a coating machine for producing matte film according to the present invention.
[0027] Figure 5 This is an exploded view of the rolling mechanism of a coating machine for producing matte film according to the present invention.
[0028] Legend:
[0029] 1. Positioning plate; 2. Rolling mechanism; 201. Motor 1; 202. Connecting rod; 203. Gear 1; 204. Circular cylinder; 205. Groove; 206. Gear 2; 207. Gear 3; 208. Roller 1; 209. Roller 2; 3. Fixed cylinder; 4. Roller; 5. Fixed plate; 6. Fixed block; 7. Vent hole; 8. Support plate; 9. Moving plate; 10. Motor 2; 11. Turntable 1; 12. Belt; 13. Turntable 2; 14. Electric push rod; 15. Scraper; 16. Cover plate; 17. Support foot; 18. Storage box; 19. Bolt; 20. Auxiliary wheel; 21. Support frame. Detailed Implementation
[0030] 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.
[0031] Reference Figure 1 , Figure 3and Figure 4 This utility model provides an embodiment of a coating machine for producing matte film, comprising a positioning plate 1, a fixed cylinder 3 fixedly connected to the right side of the inner wall of the positioning plate 1, a roller 4 rotatably connected to the inner wall of the fixed cylinder 3, a fixed plate 5 fixedly connected to the middle of the inner wall of the positioning plate 1, multiple vent holes 7 opened on the outer wall of the fixed plate 5, a support plate 8 fixedly connected to the rear side of the outer wall of the positioning plate 1, a movable plate 9 slidably connected to the middle of the inner wall of the support plate 8, a second motor 10 fixedly connected to the right side of the outer wall of the movable plate 9, and a turntable 11 fixedly connected to the output end of the second motor 10. A belt 12 is rotatably connected to the outer wall of the positioning plate 1. A turntable 13 is rotatably connected to the left side of the inner wall of the moving plate 9. Turntable 11 is connected to turntable 13 via belt 12. A fixing block 6 is fixedly connected to one side of the outer wall of belt 12. An electric push rod 14 is fixedly connected to the front side of the outer wall of fixing block 6. A scraper 15 is fixedly connected to the bottom of the outer wall of electric push rod 14. A rolling mechanism 2 is fixedly connected to the left side of the inner wall of positioning plate 1. The rolling mechanism 2 is used to convey and roll the matte film. Support feet 17 are fixedly connected to the four corners at the bottom of positioning plate 1 to reduce the grounding area and increase the service life.
[0032] Reference Figure 1 , Figure 2 and Figure 5 The rolling mechanism 2 includes a motor 201, which is fixedly connected to the front side of the outer wall of the positioning plate 1. A connecting rod 202 is fixedly connected to the output end of the motor 201. A gear 203 is fixedly connected to the rear end of the connecting rod 202. A cylindrical cylinder 204 passes through the outer wall of the gear 203. A groove 205 is formed at the bottom of the inner wall of the cylindrical cylinder 204. Multiple gears 206 are rotatably connected to the bottom of the inner wall of the cylindrical cylinder 204. The top gear 203 meshes with the gears 206. Multiple gears 207 are rotatably connected to the bottom of the inner wall of cylinder 204. The bottom gear 203 meshes with the gear 207. A roller 208 is fixedly connected to the adjacent side of multiple gears 206. A roller 209 is fixedly connected to the adjacent side of multiple gears 206. A cover plate 16 is rotatably connected to the top of the outer wall of cylinder 204 to facilitate maintenance of the internal structure and regular inspection. A support frame 21 is fixedly connected to the bottom of the outer wall of motor 201 to maintain the stability and firmness of motor 201 operation.
[0033] Reference Figure 1 , Figure 2 and Figure 3 A storage box 18 is installed on the front side of the outer wall of the positioning plate 1, which is convenient for users to store and place items. A bolt 19 is threaded on the rear side of the inner wall of the storage box 18 to enable quick disassembly and assembly and ensure the practicality of the structure. An auxiliary wheel 20 is rotatably connected to the left side of the inner wall of the positioning plate 1, which plays an auxiliary and limiting role and optimizes the transmission process.
[0034] Working principle: A fixed cylinder 3 is fixed on the right side of the inner wall of the positioning plate 1. Rollers 4 can rotate freely within the inner wall of the fixed cylinder 3, ensuring comprehensive contact of the matte film. Simultaneously, a fixed plate 5 is fixed in the middle of the inner wall of the positioning plate 1. Multiple vent holes 7 are opened on the outer wall of this fixed plate 5 to ensure efficient and rapid coating. A support plate 8 is fixed on the rear side of the outer wall of the positioning plate 1, providing support for the top structure. A movable plate 9 is slidably connected to the middle of the inner wall of the support plate 8. A motor 10 is fixedly connected to the right side of the outer wall of the movable plate 9, providing driving force for the left and right movement of the structure assembly. The output end is directly connected to turntable 11. The outer wall of turntable 11 is rotatably connected to turntable 2 13 via belt 12, forming a transmission mechanism. The left and right movement is achieved by a fixed block fixed on one side of belt 12, ensuring the transmission of power. The front side of the outer wall of the fixed block 6 is fixedly connected to the electric push rod 14. The bottom of the outer wall of the electric push rod 14 is connected to a scraper 15 for cleaning and maintaining the equipment. The automatic scraper 15 ensures that the coating thickness is uniform and flat, reduces air mixing in the coating process, improves the cleanliness of the coating head, reduces bubbles and particles on the surface of the matte film, and increases the yield of the product.
[0035] Motor 201 is fixedly installed on the front outer side of the positioning plate 1 to drive the internal structure to rotate. Its output end is connected to the connecting rod 202 to transmit force. The rear end of the connecting rod 202 is connected to gear 203 to ensure smooth rotation. A cylindrical cylinder 204 runs through the outer side of gear 203 to ensure the sealing of the processing. A groove 205 is provided on the bottom inner side of the cylindrical cylinder 204 to allow it to pass through the middle and ensure the comprehensiveness of the processing. The internal structure can rotate flexibly. Gear 206 at the top and gear 203 at the bottom are meshed on the inner wall of the cylindrical cylinder 204 to ensure the synchronicity and integrity of the rotation of the structure. Rollers 208 are fixedly installed on adjacent sides of gears 206, while rollers 209 are fixedly installed on the other side of gears 206 to ensure that the coating of the matte film is more uniform and compact.
[0036] 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 coating machine for producing matte film, comprising a positioning plate (1), characterized in that: A fixed cylinder (3) is fixedly connected to the right side of the inner wall of the positioning plate (1). A roller (4) is rotatably connected to the inner wall of the fixed cylinder (3). A fixed plate (5) is fixedly connected to the middle of the inner wall of the positioning plate (1). Multiple exhaust holes (7) are provided on the outer wall of the fixed plate (5). A support plate (8) is fixedly connected to the rear side of the outer wall of the positioning plate (1). A movable plate (9) is slidably connected to the middle of the inner wall of the support plate (8). A second motor (10) is fixedly connected to the right side of the outer wall of the movable plate (9). A turntable (11) is fixedly connected to the output end of the second motor (10). A belt (12) is rotatably connected to the outer wall of disc one (11). A turntable two (13) is rotatably connected to the left side of the inner wall of the moving plate (9). The turntable one (11) is connected to the turntable two (13) via the belt (12). A fixing block (6) is fixedly connected to one side of the outer wall of the belt (12). An electric push rod (14) is fixedly connected to the front side of the outer wall of the fixing block (6). A scraper (15) is fixedly connected to the bottom of the outer wall of the electric push rod (14). A rolling mechanism (2) is fixedly connected to the left side of the inner wall of the positioning plate (1). The rolling mechanism (2) is used to convey and roll the matte film.
2. The coating machine for producing matte film according to claim 1, characterized in that: The rolling mechanism (2) includes a motor (201), which is fixedly connected to the front side of the outer wall of the positioning plate (1). A connecting rod (202) is fixedly connected to the output end of the motor (201). A gear (203) is fixedly connected to the rear end of the connecting rod (202). A circular cylinder (204) penetrates the outer wall of the gear (203). A groove (205) is provided at the bottom of the inner wall of the circular cylinder (204). Multiple gears (206) are rotatably connected to the bottom of the inner wall. The gear (203) at the top meshes with the gears (206). Multiple gears (207) are rotatably connected to the bottom of the inner wall of the cylindrical tube (204). The gears (203) at the bottom mesh with the gears (207). A roller (208) is fixedly connected to one side of each of the multiple gears (206). A roller (209) is fixedly connected to one side of each of the multiple gears (206).
3. A coating machine for producing matte film according to claim 2, characterized in that: The top of the outer wall of the cylindrical tube (204) is rotatably connected to a cover plate (16).
4. A coating machine for producing matte film according to claim 1, characterized in that: Support feet (17) are fixedly connected to the four corners at the bottom of the positioning plate (1).
5. A coating machine for producing matte film according to claim 1, characterized in that: A storage box (18) is installed on the front side of the outer wall of the positioning plate (1).
6. A coating machine for producing matte film according to claim 5, characterized in that: The inner wall of the storage box (18) is threaded with bolts (19).
7. A coating machine for producing matte film according to claim 1, characterized in that: An auxiliary wheel (20) is rotatably connected to the left side of the inner wall of the positioning plate (1).
8. A coating machine for producing matte film according to claim 2, characterized in that: A support frame (21) is fixedly connected to the bottom of the outer wall of the motor (201).