Film coating device for refining flame-retardant high-tensile silicone rubber
By designing the material storage component and motor drive in the film coating device, the problem of uneven adhesive thickness caused by the large weight of the film roll was solved, thus achieving uniformity of adhesive winding and improvement of product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIYANG TIANSHENG INSULATION MATERIAL CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-12
AI Technical Summary
In the existing technology, during the mixing process of flame-retardant high tensile silicone rubber, the large weight of the film roll means that a large force is required during the initial pulling, which can easily lead to uneven rubber thickness and affect product quality.
A film coating device including a winding tube, an unwinding mechanism, and a material storage assembly was designed. The upper rotating roller is driven to rise and fall by a cylinder, and the lower rotating roller is driven to rotate by a servo geared motor. This allows the film to be pre-stacked in a dustproof box, reducing the pulling force and preventing the colloid from deforming.
By pre-stacking the films, the pulling force is reduced, ensuring uniform thickness of the colloid after winding and improving product quality.
Smart Images

Figure CN224226347U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of flame-retardant high tensile strength silicone rubber mixing process, and in particular to a film coating device for flame-retardant high tensile strength silicone rubber mixing. Background Technology
[0002] Flame-retardant high tensile strength silicone rubber has excellent resistance to high and low temperatures, electrical insulation, flame retardancy, and processing performance. It can also withstand high and low temperatures and aging. Therefore, flame-retardant silicone rubber is widely used in the wire and cable industry.
[0003] Flame-retardant high tensile strength silicone rubber requires rubber mixing during production. After mixing, it needs to be coated and transported. Coating is mainly to prevent dust and other impurities from contaminating the rubber. In existing technology, the rubber material is usually manually adhered to the film, and then rolled up using the inertia of the rubber material. During this process, the film roll is pulled by the viscosity of the rubber. Since the film roll is relatively heavy, a large pulling force is required at the beginning, which can easily lead to uneven rubber thickness and affect the quality of subsequent products. Utility Model Content
[0004] The purpose of this application is to provide a film coating apparatus for flame-retardant high tensile strength silicone rubber compounding, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this application provides a film coating apparatus for flame-retardant high tensile strength silicone rubber mixing, employing the following technical solution:
[0006] A film coating device for flame-retardant high tensile strength silicone rubber mixing includes a take-up tube that can be movably placed on the frame of a rubber mixing mill, and an unwinding mechanism disposed next to the rubber mixing mill. The unwinding mechanism includes an unwinding assembly and a material storage assembly. The unwinding assembly includes a base, a bracket, a bearing seat, and an air expansion shaft. The bracket is fixed to the top of the base, the bearing seat is fixed to the bracket, and the air expansion shaft is installed in the bearing seat.
[0007] The material storage assembly includes a dustproof box, a drive roller assembly, and a guide roller assembly. The dustproof box is fixed on the base. A feed trough and a discharge trough are respectively opened on both sides of the dustproof box. The drive roller assembly is installed in the feed trough, and the guide roller assembly is arranged in the discharge trough.
[0008] Both the drive roller assembly and the guide roller assembly include a support base. A lower rotating roller is rotatably connected to the support base. An upper rotating roller is provided on the top of the lower rotating roller. Shaft seats are connected to both sides of the upper rotating roller. The shaft seats are slidably connected to the support base. A cylinder is fixed on the support base. The cylinder is used to drive the shaft seats to lift and lower.
[0009] By adopting the above technical solution, and using a cylinder to drive the upper rotating roller to lift and lower, it is not only convenient to install the film, but also to prevent the film at the guide roller assembly from falling into the dust box.
[0010] A servo geared motor is also installed on the support seat in the drive roller assembly, and the servo geared motor is used to drive the lower rotating roller to rotate.
[0011] The base is equipped with casters at the four corners of its bottom.
[0012] Preferably, in order to facilitate manual passage of the film through the drive roller assembly and the guide roller assembly, the dustproof box is provided with a removable top cover.
[0013] In summary, this application includes at least one of the following beneficial technical effects: the flame-retardant high tensile strength silicone rubber compounding film coating device is equipped with a material storage component, which includes a dustproof box, a drive roller group and a guide roller group. The drive roller group can pre-stack the film in the dustproof box for use. During the subsequent rubber winding process, the force pulling the film is small, so as not to deform the rubber. The thickness of the rubber after winding is more uniform, thereby improving the quality of subsequent products. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.
[0015] Figure 2 This is a schematic diagram illustrating the connection relationship between the unwinding mechanism and the material storage mechanism in the embodiments of this application.
[0016] Explanation of reference numerals in the attached drawings: 1. Take-up tube; 2. Unwinding assembly; 21. Base; 22. Bracket; 23. Bearing seat; 24. Air shaft; 3. Material storage assembly; 31. Dustproof box; 311. Feed chute; 312. Discharge chute; 313. Top cover; 32. Drive roller assembly; 321. Support seat; 322. Lower rotating roller; 323. Upper rotating roller; 324. Shaft seat; 325. Cylinder; 326. Servo geared motor; 33. Guide roller assembly; 4. Caster wheel. Detailed Implementation
[0017] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.
[0018] This application discloses a film coating apparatus for mixing flame-retardant, high-tensile-strength silicone rubber, referring to... Figure 1-2The system includes a take-up tube 1, which can be movably placed on the frame of the rubber mixing mill, and an unwinding mechanism located next to the rubber mixing mill. The unwinding mechanism includes an unwinding assembly 2 and a material storage assembly 3. The unwinding assembly 2 includes a base 21, a bracket 22, a bearing seat 23, and an air shaft 24. The base 21 has casters 4 installed at the four corners of its bottom end. The bracket 22 is fixed to the top of the base 21. The bearing seat 23 is fixed on the bracket 22. The air shaft 24 is installed inside the bearing seat 23.
[0019] The material storage assembly 3 includes a dustproof box 31, a drive roller assembly 32, and a guide roller assembly 33. The dustproof box 31 is fixed on the base 21. The dustproof box 31 has a feed trough 311 and a discharge trough 312 on both sides. The drive roller assembly 32 is installed in the feed trough 311, and the guide roller assembly 33 is installed in the discharge trough 312.
[0020] Reference Figure 2 Both the drive roller assembly 32 and the guide roller assembly 33 include a support base 321. A lower rotating roller 322 is rotatably connected to the support base 321. An upper rotating roller 323 is provided on the top of the lower rotating roller 322. Shaft seats 324 are connected to both sides of the upper rotating roller 323. The shaft seats 324 are slidably connected to the support base 321. A cylinder 325 is fixed on the support base 321. The cylinder 325 is used to drive the shaft seats 324 to lift. A servo reduction motor 326 is also installed on the support base in the drive roller assembly 32. The servo reduction motor 326 is used to drive the lower rotating roller 322 to rotate.
[0021] By using cylinder 325 to drive the upper rotating roller 323 to rise and fall, it is not only convenient to install the film, but also to prevent the film at the guide roller group 33 from falling into the dust box 31.
[0022] To replace the film roll, the dust box 31 is equipped with a removable top cover 313. After removing the top cover 313, the film can be easily passed through the drive roller group 32 and the guide roller group 33.
[0023] The implementation principle of the film coating device for flame-retardant high tensile strength silicone rubber mixing in this application embodiment is as follows:
[0024] The film roll is mounted on the air shaft 24, and the film is manually passed through the drive roller group 32 and the guide roller group 33 in sequence. After that, the servo reduction motor 326 in the drive roller group 32 works for a period of time to pull the film. The film is stacked in the dust box 31 under the action of gravity for use.
[0025] During the lamination process, the worker pulls the film onto the take-up tube 1 and attaches the pulling colloid to the film. Then, the rubber mixing machine operates, and the worker holds the take-up tube 1 to pull the film to roll up. Since the film is already stacked in the dustproof box 31, the force of pulling the film is small, so the colloid will not be deformed, and the thickness of the colloid after winding is relatively uniform.
[0026] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A film coating device for mixing flame-retardant high tensile strength silicone rubber, comprising a winding tube (1), wherein the winding tube (1) is movably mounted on the frame of a rubber mixing mill, characterized in that: It also includes an unwinding mechanism located next to the rubber mixing mill. The unwinding mechanism includes an unwinding assembly (2) and a material storage assembly (3). The unwinding assembly (2) includes a base (21), a bracket (22), a bearing seat (23), and an air shaft (24). The bracket (22) is fixed to the top of the base (21), the bearing seat (23) is fixed on the bracket (22), and the air shaft (24) is installed inside the bearing seat (23). The material storage assembly (3) includes a dustproof box (31), a drive roller assembly (32), and a guide roller assembly (33). The dustproof box (31) is fixed on the base (21). The dustproof box (31) has a feed trough (311) and a discharge trough (312) on both sides. The drive roller assembly (32) is installed in the feed trough (311), and the guide roller assembly (33) is installed in the discharge trough (312).
2. The film coating apparatus for flame-retardant high tensile strength silicone rubber compounding according to claim 1, characterized in that: Both the drive roller assembly (32) and the guide roller assembly (33) include a support base (321). A lower rotating roller (322) is rotatably connected to the support base (321). An upper rotating roller (323) is provided on the top of the lower rotating roller (322). Shaft seats (324) are connected to both sides of the upper rotating roller (323). The shaft seats (324) are slidably connected to the support base (321). A cylinder (325) is fixed on the support base (321). The cylinder (325) is used to drive the shaft seats (324) to rise and fall.
3. The film coating apparatus for flame-retardant high tensile strength silicone rubber compounding according to claim 2, characterized in that: A servo geared motor (326) is also installed on the support seat in the drive roller group (32), and the servo geared motor (326) is used to drive the lower rotating roller (322) to rotate.
4. The film coating apparatus for flame-retardant high tensile strength silicone rubber compounding according to claim 1, characterized in that: The base (21) is equipped with casters (4) at the four corners of its bottom.
5. The film coating apparatus for flame-retardant high tensile strength silicone rubber compounding according to claim 1, characterized in that: The dust box (31) is provided with a removable top cover (313).