Polyethylene coating device for dustproof long-acting fog dissipation greenhouse film production
By designing a scraping mechanism and an adjustable support system in the polyethylene coating device, the coating uneven coating and film deformation caused by raw material flow are solved, and the coating quality is significantly improved.
Patent Information
- Application Number
- CN202421716703.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-18
AI Technical Summary
During the process of polyethylene coating film, the fluidity of the raw material leads to uneven coating, and the film is prone to deformation, affecting the coating quality.
A polyethylene coating device is designed, including a scraping mechanism, a guide roller, a support roller and an adjustable extrusion frame. Through the cooperation of the scraper and the rubber strip, the thickness of the raw material is ensured uniformly; through the support of the guide roller and the support roller, the film is avoided, and the extrusion pressure is adjusted through threads to adapt to the elasticity of the film.
It effectively improves the quality of raw material coating, ensures uniformity of coating, and avoids film deformation, improving the overall coating quality.
Smart Images

Figure CN222872552U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of polyethylene coating devices, in particular to a polyethylene coating device for producing dust-proof and long-acting fog-eliminating shed films. Background Art
[0002] The plastic agricultural film used to make plastic greenhouses and greenhouses can provide a microclimate environment with good temperature, humidity and light quality for crops after covering. In the process of producing greenhouse film, the surface finish of the film can be increased by coating the surface of the film with polyethylene material, which can achieve the purpose of long-term fog removal and dust prevention. However, in the process of coating the film in the prior art, the raw material needs to be coated with the liquid raw material by a coating roller, but the raw material has a certain fluidity during the coating process, resulting in uneven coating on the surface of the film, affecting the coating quality, and the film is prone to deformation during the coating process, further affecting the coating quality. Therefore, it is necessary to improve the prior art. Utility Model Content
[0003] The utility model aims to provide a polyethylene coating device for producing dustproof and long-lasting fog-eliminating shed films, which solves the problems that the flow of raw materials easily leads to uneven coating and the film is easily deformed.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polyethylene coating device for producing dust-proof and long-lasting fog-eliminating shed film, comprising a shell, a coating roller is installed on the middle part of the inner part of the shell through a bearing, a scraping mechanism is arranged inside the shell, a coating head is fixedly connected to the inner part of the upper end of the shell, a feeding pipe is fixedly connected to the upper end of the coating head, two symmetrically distributed guide rollers are installed on the inner part of the shell through bearings, the outer side of the coating roller contacts with a film, a guide rod is slidably connected to the inner bottom of the shell, the upper end of the guide rod is fixedly connected to a frame, a supporting roller is installed on the inner part of the frame through a bearing, an extrusion frame is slidably connected to the outer side of the guide rod, a screw is installed on the inner bottom of the shell through a bearing, a motor 2 is fixedly installed on the middle part of the lower end of the shell, and a spring 1 is arranged on the outer side of the guide rod.
[0005] Preferably, a motor 1 is fixedly mounted on the middle part of the back side of the shell, and the output shaft of the motor 1 is fixedly connected to the smear roller, so that the motor 1 can drive the smear roller to rotate.
[0006] Preferably, the supporting roller is in contact with the film, the guiding roller is in contact with the film, the screw is connected to the extrusion frame via threads, and the supporting roller can support the film.
[0007] Preferably, one end of the spring one is fixedly connected to the extrusion frame, the other end of the spring one is fixedly connected to the frame, the upper end of the output shaft of the motor two is fixedly connected to the lower end of the screw, and the spring one can support the frame through elastic force.
[0008] Preferably, the scraping mechanism includes an articulated seat, two symmetrically distributed articulated seats are fixedly connected to the inner top of the shell, a scraper is hinged on the outer side of the articulated seat, a support frame is fixedly connected to the outer side of the scraper, a spring 2 is arranged inside the support frame, and a rubber strip is fixedly connected to the outer side of the scraper, which can temporarily store raw materials.
[0009] Preferably, one end of the second spring is fixedly connected to the support frame, and the other end of the second spring is fixedly connected to the housing, and the second spring can support the support frame through elastic force.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0011] 1. The utility model adds structures such as a scraper, a support frame and a rubber strip inside the shell. In the process of applying the raw material through the coating roller, the scraper can be driven by the elastic force of the second spring to press against the outer side of the coating roller to scrape the liquid raw material on the outer side of the coating roller, thereby ensuring that the thickness of the raw material is uniform and effectively improving the coating quality of the raw material.
[0012] 2. The utility model adds guide rods, support rollers, screw rods and other structures inside the shell. During use, the extrusion force of the spring can be adjusted by the threaded cooperation between the screw rod and the extrusion frame. After the extrusion degree of the spring is adjusted, the support force of the film can be adjusted, so that the film can be unfolded by the support force of the support roller, which can effectively avoid deformation caused by the movement and further improve the coating quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The overall structure of the utility model is three-dimensional Figure 1 ;
[0014] Figure 2 The overall structure of the utility model is three-dimensional Figure 2 ;
[0015] Figure 3 For the utility model Figure 1 A three-dimensional cross-sectional view of
[0016] Figure 4 For the utility model Figure 3 A-section structure enlarged view.
[0017] In the figure: 1. Shell; 2. Coating roller; 3. Scraping mechanism; 4. Coating head; 5. Feed pipe; 6. Motor 1; 7. Guide roller; 8. Film; 9. Guide rod; 10. Frame; 11. Support roller; 12. Extrusion frame; 13. Screw; 14. Motor 2; 15. Spring 1; 31. Articulated seat; 32. Scraper; 33. Support frame; 34. Spring 2; 35. Rubber strip. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] See also Figure 1 , Figure 2 , Figure 3 A polyethylene coating device for producing dust-proof and long-lasting fog-eliminating shed film comprises a shell 1, a coating roller 2 is installed on the middle part of the inner part of the shell 1 through a bearing, a scraping mechanism 3 is arranged inside the shell 1, a coating head 4 is fixedly connected to the inner part of the upper end of the shell 1, a feeding pipe 5 is fixedly connected to the upper end of the coating head 4, two symmetrically distributed guide rollers 7 are installed on the inner part of the shell 1 through bearings, a film 8 is contacted on the outer side of the coating roller 2, a guide rod 9 is slidably connected to the inner bottom of the shell 1, a frame 10 is fixedly connected to the upper end of the guide rod 9, a supporting roller 11 is installed on the inner part of the frame 10 through a bearing, an extrusion frame 12 is slidably connected to the outer side of the guide rod 9, a screw 13 is installed on the inner bottom of the shell 1 through a bearing, a motor 2 14 is fixedly installed on the middle part of the lower end of the shell 1, and a spring 15 is arranged on the outer side of the guide rod 9.
[0020] See also Figure 1 , Figure 2 , Figure 3 A motor 6 is fixedly installed in the middle of the back side of the shell 1, and the output shaft of the motor 6 is fixedly connected to the smear roller 2, and the motor 6 can drive the smear roller 2 to rotate. The support roller 11 is in contact with the film 8, the guide roller 7 is in contact with the film 8, the screw 13 is connected to the extrusion frame 12 by a thread, the support roller 11 can support the film 8, one end of the spring 15 is fixedly connected to the extrusion frame 12, and the other end of the spring 15 is fixedly connected to the frame 10, the upper end of the output shaft of the motor 2 14 is fixedly connected to the lower end of the screw 13, and the spring 15 can support the frame 10 through elastic force.
[0021] See also Figure 1 , Figure 3 , Figure 4The scraping mechanism 3 includes an articulated seat 31. Two symmetrically distributed articulated seats 31 are fixedly connected to the inner top of the shell 1. A scraper 32 is hinged on the outer side of the articulated seat 31. A support frame 33 is fixedly connected to the outer side of the scraper 32. A spring 34 is arranged inside the support frame 33. A rubber strip 35 is fixedly connected to the outer side of the scraper 32. The rubber strip 35 can temporarily store the raw materials. One end of the spring 34 is fixedly connected to the support frame 33, and the other end of the spring 34 is fixedly connected to the shell 1. The spring 34 can support the support frame 33 through elastic force.
[0022] The specific implementation process of the utility model is as follows: when in use, the motor 16 is started, and the motor 16 drives the smear roller 2 to rotate. During the rotation of the smear roller 2, the raw material inside the smear head 4 can be smeared on the surface of the smear roller 2. During the rotation of the smear roller 2, the spring 2 34 drives the scraper 32 to press against the outer side of the smear roller 2 through the elastic force, which can effectively ensure the thickness of the liquid raw material, and the raw material can be smeared on the surface of the film 8 during the rotation of the smear roller 2;
[0023] During the movement of the film 8 inside the shell 1, the spring 15 is compressed. The spring 15 can drive the support roller 11 to support the film 8 through elastic force. The two support rollers 11 can open the film 8 under the coating roller 2, thereby preventing the film 8 from deforming after being subjected to force, and the motor 2 14 can be started according to the elasticity of the film 8. The motor 2 14 drives the screw 13 to rotate. During the rotation, the screw 13 can adjust the compression degree of the spring 15 through the threaded cooperation with the extrusion frame 12, thereby adjusting the elastic force of the spring 15, so that the supporting force can be more suitable for the elasticity of the film 8.
[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A polyethylene coating device for producing dust-proof and long-lasting fog-eliminating shed film, comprising a housing (1), characterized in that: A coating roller (2) is mounted in the middle of the shell (1) via a bearing, a scraping mechanism (3) is arranged in the shell (1), a coating head (4) is fixedly connected to the upper end of the shell (1), a feed pipe (5) is fixedly connected to the upper end of the coating head (4), two symmetrically distributed guide rollers (7) are mounted in the shell (1) via bearings, the outer side of the coating roller (2) contacts a film (8), a guide rod (9) is slidably connected to the inner bottom of the shell (1), the upper end of the guide rod (9) is fixedly connected to a frame (10), a support roller (11) is mounted in the frame (10) via a bearing, an extrusion frame (12) is slidably connected to the outer side of the guide rod (9), a screw (13) is mounted in the inner bottom of the shell (1) via a bearing, a motor 2 (14) is fixedly mounted in the middle of the lower end of the shell (1), and a spring 1 (15) is arranged on the outer side of the guide rod (9).
2. The polyethylene coating device for producing dust-proof and long-lasting fog-eliminating shed film according to claim 1 is characterized in that: A motor 1 (6) is fixedly mounted in the middle of the back side of the housing (1), and an output shaft of the motor 1 (6) is fixedly connected to the coating roller (2).
3. The polyethylene coating device for producing dust-proof and long-lasting fog-eliminating shed film according to claim 1 is characterized in that: The supporting roller (11) is in contact with the film (8), the guiding roller (7) is in contact with the film (8), and the screw (13) is connected to the extrusion frame (12) via threads.
4. The polyethylene coating device for producing dust-proof and long-lasting fog-eliminating shed film according to claim 1 is characterized in that: One end of the spring one (15) is fixedly connected to the extrusion frame (12), the other end of the spring one (15) is fixedly connected to the frame (10), and the upper end of the output shaft of the motor two (14) is fixedly connected to the lower end of the screw rod (13).
5. The polyethylene coating device for producing dust-proof and long-lasting fog-eliminating shed film according to claim 1, characterized in that: The scraping mechanism (3) comprises an articulated seat (31), two symmetrically distributed articulated seats (31) are fixedly connected to the inner top of the housing (1), a scraper (32) is hingedly connected to the outer side of the articulated seat (31), a support frame (33) is fixedly connected to the outer side of the scraper (32), a spring (34) is arranged inside the support frame (33), and a rubber strip (35) is fixedly connected to the outer side of the scraper (32).
6. The polyethylene coating device for producing dust-proof and long-lasting fog-eliminating shed film according to claim 5, characterized in that: One end of the second spring (34) is fixedly connected to the support frame (33), and the other end of the second spring (34) is fixedly connected to the housing (1).