Production and processing method of moisture-proof ceiling fan blades
By heating and softening the PVC film paper and then applying glue to the surface of the ceiling fan blades before rolling, the problems of heat deformation and noise of the ceiling fan blades are solved, achieving stability and waterproofing of the ceiling fan blades, while reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional ceiling fan blades use plastic materials, resulting in high mold and manufacturing costs. Furthermore, during the PVC film forming process, they are prone to heat deformation, affecting the smoothness of rotation and generating noise.
The process involves first heating and softening the PVC film, then applying adhesive to the surface of the ceiling fan blades and using a rolling device to firmly bond them together. This avoids the heating and vacuum forming process and ensures a stable bond between the PVC film and the ceiling fan blades.
The manufactured ceiling fan blades have a stable and reliable structure, rotate smoothly, have good waterproof performance, are low in cost, and have high production efficiency.
Smart Images
Figure CN121716299A_ABST
Abstract
Description
[Technical Field]
[0001] This invention relates to the field of ceiling fan blade technology, and in particular to a method for producing and processing moisture-proof ceiling fan blades. [Background Technology]
[0002] Traditional ceiling fan blades are typically made of plastic to provide good moisture and water resistance. However, using plastic blades results in high mold and manufacturing costs.
[0003] In addition, during the manufacturing process, some ceiling fan blades are typically decorated, waterproofed, and protected by vacuum forming PVC film onto the surface of the processed board material (MDF, plywood, composite board, or solid wood board, etc.). However, the vacuum forming process for ceiling fan blades currently requires heat treatment to achieve the vacuum forming, which can easily lead to heat deformation of the fan blades, affecting the smoothness of the fan's rotation and causing vibration and noise.
[0004] Therefore, this invention addresses the aforementioned problems. [Summary of the Invention]
[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a method for manufacturing moisture-proof ceiling fan blades. The method involves first heating and softening a PVC film paper, then applying adhesive to the corresponding surface of the fan blades. Next, the softened PVC film paper is adhered to the adhesive-coated surface of the fan blades to ensure a stable bond. Immediately afterward, the fan blades with the PVC film paper are placed on a rubber rolling device for rolling to ensure the PVC film paper is firmly attached to the non-planar fan blades with engraved patterns or curved edges. This effectively solves the problem in existing technologies where heating and vacuum forming causes heat deformation of the fan blades, affecting the smoothness of rotation and resulting in vibration and noise. In other words, this invention does not require heating the fan blades to adhere the PVC film paper. Therefore, the fan blades manufactured using this method have a stable and reliable structure, smooth rotation, good waterproof effect, and low manufacturing cost. Furthermore, this invention also has the advantage of high production efficiency.
[0006] This invention is achieved through the following technical solution:
[0007] A method for manufacturing a moisture-proof ceiling fan blade, wherein the ceiling fan blade 1 includes an upper surface 11 and a lower surface 12, the upper surface 11 is planar, the lower surface 12 is planar in the middle, and a transition slope 13 is provided between the periphery of the lower surface 12 and the edge of the upper surface 11; the manufacturing method includes the following steps:
[0008] S1. Place the PVC film paper in a heating device for heating and softening treatment. The heating temperature is 80-100°C and the heating time is 5-10 minutes.
[0009] S2. Place the ceiling fan blade 1 with the lower surface 12 facing upward on the glue applicator to apply glue to the lower surface 12 and the transition slope 13. Then, attach the PVC film paper softened in step S1 to the lower surface 12 and the transition slope 13 of the ceiling fan blade 1 that have been coated with glue.
[0010] S3. Place the ceiling fan blade 1 with PVC film paper pasted in step S2 on the rolling device for rolling treatment, so that the PVC film paper is rolled and pasted onto the lower surface 12 and the transition slope 13. Then trim the side of the PVC film paper on the ceiling fan blade 1.
[0011] S4. Place the ceiling fan blade 1 from step S3 with the upper surface 11 facing upward on the glue applicator to apply glue to the upper surface 11. Then, attach the softened PVC film from step S1 to the upper surface 11 of the ceiling fan blade 1 coated with glue, or attach the PVC film to the upper surface 11 of the ceiling fan blade 1 coated with glue.
[0012] S5. Place the ceiling fan blade 1 with the PVC film paper pasted in step S4 on the rolling device for rolling treatment, so that the PVC film paper is rolled and pasted onto the upper surface 11. Then trim the side of the PVC film paper on the ceiling fan blade 1.
[0013] As described above, in the production and processing method of a moisture-proof ceiling fan blade, in step S1, the required PVC film paper is first cut from a PVC film paper, and the PVC film paper is larger than the corresponding surface of the ceiling fan blade.
[0014] In the above-described method for producing and processing moisture-proof ceiling fan blades, in step S1, multiple pieces of PVC film paper are placed in a heating device and simultaneously heated and softened.
[0015] As described above, in the manufacturing process of a moisture-proof ceiling fan blade, in step S2, several ceiling fan blades 1 are placed on an adhesive applicator with their lower surfaces 12 facing upwards and spaced apart to apply adhesive to the lower surfaces 12 and transition slopes 13. Then, a PVC film paper softened in step S1 is simultaneously pasted onto the lower surfaces 12 and transition slopes 13 of several ceiling fan blades 1 coated with adhesive. In step S3, several ceiling fan blades 1 with PVC film paper pasted in step S2 are placed on a rolling device for rolling treatment, so that the PVC film paper is rolled and correspondingly pasted onto the lower surfaces 12 and transition slopes 13. Afterwards, the sides of the PVC film paper on the ceiling fan blades 1 are separated, cut, and trimmed.
[0016] In the above-described method for manufacturing and processing moisture-proof ceiling fan blades, in step S4, several ceiling fan blades 1 from step S3 are placed with their upper surfaces 11 facing upwards and spaced apart on an adhesive applicator to apply adhesive to the upper surfaces 11. Then, a PVC film paper softened in step S1 is simultaneously pasted onto the upper surfaces 11 of several ceiling fan blades 1 coated with adhesive, or the PVC film paper is then pasted onto the upper surfaces 11 of the ceiling fan blades 1 coated with adhesive. In step S5, several ceiling fan blades 1 with PVC film paper pasted in step S4 are placed on a rolling device for rolling treatment, so that the PVC film paper is rolled and correspondingly pasted onto the upper surfaces 11. Afterwards, the sides of the PVC film paper on the ceiling fan blades 1 are trimmed.
[0017] As described above, in the production and processing method of a moisture-proof ceiling fan blade, the heating device in step S1 is an oven with a heating temperature of 80-100°C and a heating time of 5-10 minutes.
[0018] As described above, in the production and processing method of a moisture-proof ceiling fan blade, the heating device in step S1 is an oven with a heating temperature of 90°C and a heating time of 8 minutes.
[0019] In the above-described method for manufacturing and processing moisture-proof ceiling fan blades, the adhesive used in steps S2 and S4 is white latex.
[0020] The above-described method for manufacturing and processing moisture-proof ceiling fan blades, wherein the ceiling fan blades are made of MDF, plywood, composite board, or solid wood.
[0021] As described above, in the manufacturing process of a moisture-proof ceiling fan blade, the rolling device is a rubber roller with elastic deformation.
[0022] Compared with the prior art, the present invention has the following advantages:
[0023] 1. This invention first softens the PVC film by heating it, then applies adhesive to the corresponding surface of the ceiling fan blades, and then pastes the softened PVC film onto the adhesive-coated surface of the ceiling fan blades to ensure a stable bond between the PVC film and the blades. Immediately afterwards, the ceiling fan blades with the PVC film attached are placed on a rubber rolling device for rolling to ensure the PVC film is firmly attached to the non-planar ceiling fan blades with engraved patterns or curved edges. This effectively solves the problem in existing technologies where heating and vacuum forming causes the ceiling fan blades to deform due to heat, affecting the smoothness of the fan blade rotation and resulting in vibration and noise. In other words, this invention does not require heating the ceiling fan blades to paste the PVC film onto them. Therefore, ceiling fan blades manufactured using this method have a stable and reliable structure, smooth rotation, good waterproof performance, and low manufacturing cost. Furthermore, this invention also has the advantage of high production efficiency.
[0024] 2. In this invention, the softened PVC film is pressed by an elastic roller to make it fit snugly, and the softened PVC film has good extensibility, so it will not wrinkle.
[0025] 3. In the present invention, during the processing of ceiling fan blades and PVC film paper, the length direction of the ceiling fan blades and PVC film paper is parallel to the conveying direction, ensuring that the elastic rubber roller can fully crush the transition slope on the side of each ceiling fan blade, thereby ensuring that the corresponding part of the PVC film paper is adhered to the transition slope. [Attached Image Description]
[0026] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:
[0027] Figure 1 This is a schematic diagram of the structure of the ceiling fan blades in this invention.
[0028] Figure 2 This is a bottom view of the ceiling fan blades in this invention.
[0029] Figure 3 This is a top view of the ceiling fan blades in this invention.
Detailed Implementation Methods
[0030] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0031] like Figure 1-3 As shown, the present invention discloses a method for manufacturing a moisture-proof ceiling fan blade. The ceiling fan blade 1 includes an upper surface 11 and a lower surface 12. The upper surface 11 is planar, and the lower surface 12 is planar in the middle. A transition slope 13 is provided between the periphery of the lower surface 12 and the edge of the upper surface 11. The manufacturing method includes the following steps:
[0032] S1. Place the PVC film paper in a heating device for heating and softening treatment. The heating temperature is 80-100°C and the heating time is 5-10 minutes.
[0033] S2. Place the ceiling fan blade 1 with the lower surface 12 facing upward on the glue applicator to apply glue to the lower surface 12 and the transition slope 13. Then, attach the PVC film paper softened in step S1 to the lower surface 12 and the transition slope 13 of the ceiling fan blade 1 that have been coated with glue.
[0034] S3. Place the ceiling fan blade 1 with PVC film paper pasted in step S2 on the rolling device for rolling treatment, so that the PVC film paper is rolled and pasted onto the lower surface 12 and the transition slope 13. Then trim the side of the PVC film paper on the ceiling fan blade 1.
[0035] S4. Place the ceiling fan blade 1 from step S3 with the upper surface 11 facing upward on the glue applicator to apply glue to the upper surface 11. Then, attach the softened PVC film from step S1 to the upper surface 11 of the ceiling fan blade 1 coated with glue, or attach the PVC film to the upper surface 11 of the ceiling fan blade 1 coated with glue.
[0036] S5. Place the ceiling fan blade 1 with the PVC film paper pasted in step S4 on the rolling device for rolling treatment, so that the PVC film paper is rolled and pasted onto the upper surface 11. Then trim the side of the PVC film paper on the ceiling fan blade 1.
[0037] This invention first softens the PVC film by heating it, then applies adhesive to the corresponding surface of the ceiling fan blades. Next, the softened PVC film is adhered to the adhesive-coated surface of the fan blades to ensure a stable bond. Immediately afterward, the fan blades with the PVC film are placed on a rubber rolling device for rolling to ensure the PVC film is firmly attached to the non-planar fan blades with engraved patterns or curved edges. This effectively solves the problem in existing technologies where heating and vacuum forming causes fan blade deformation, affecting the smoothness of fan rotation and resulting in vibration and noise. In other words, this invention does not require heating the fan blades to adhere the PVC film. Therefore, the fan blades manufactured using this method have a stable and reliable structure, smooth rotation, good waterproof performance, and low manufacturing cost. Furthermore, this invention also has the advantage of high production efficiency.
[0038] In this invention, when the ceiling fan blades are on the conveyor line, several blades can be arranged at intervals using a fixture, with the length direction of the blades parallel to the conveying direction. This invention improves processing efficiency by conveying the ceiling fan blades through a gluing station or rolling station via the conveyor line.
[0039] In step S1, the required PVC film is first cut from a single sheet of PVC film paper. The PVC film paper is larger than the corresponding surface of the ceiling fan blades, allowing for better complete coverage or wrapping of the blades. In this embodiment, multiple sheets of PVC film paper can be cut simultaneously, improving processing efficiency.
[0040] In other embodiments, to improve processing efficiency, in step S2, several ceiling fan blades 1 with their lower surfaces 12 facing upwards and spaced apart are placed on an adhesive applicator to apply adhesive to the lower surfaces 12 and transition slopes 13. Then, a PVC film paper softened in step S1 is simultaneously pasted onto the lower surfaces 12 and transition slopes 13 of several ceiling fan blades 1 coated with adhesive. In step S3, several ceiling fan blades 1 with PVC film paper pasted in step S2 are placed on a rolling device for rolling treatment, so that the PVC film paper is rolled and pasted onto the lower surfaces 12 and transition slopes 13 accordingly. Afterwards, the sides of the PVC film paper on the ceiling fan blades 1 are separated, cut, and trimmed. In step S4, the upper surfaces 11 of several ceiling fan blades 1 from step S3 are placed face up and spaced apart on the gluing device to apply glue to the upper surfaces 11. Then, a sheet of PVC film paper softened in step S1 is simultaneously pasted onto the upper surfaces 11 of several ceiling fan blades 1 coated with glue, or the PVC film paper is then pasted onto the upper surfaces 11 of the ceiling fan blades 1 coated with glue. In step S5, the several ceiling fan blades 1 with PVC film paper pasted in step S4 are placed on a rolling device for rolling treatment, so that the PVC film paper is rolled and correspondingly pasted onto the upper surfaces 11. Afterwards, the sides of the PVC film paper on the ceiling fan blades 1 are trimmed. In this embodiment, a whole sheet of PVC film paper can be cut into pieces according to the required PVC film paper (the required PVC film paper is adapted to or larger than the corresponding surface of a single ceiling fan blade) before or after the rolling treatment.
[0041] To improve processing efficiency, in step S1, multiple sheets of PVC film are placed in a heating device and heated and softened simultaneously.
[0042] Furthermore, in order to achieve a better heating and softening effect, the heating device in step S1 is an oven with a heating temperature of 80-100°C and a heating time of 5-10 minutes.
[0043] In some embodiments, the heating device in step S1 is an oven with a heating temperature of 90°C and a heating time of 8 minutes.
[0044] In some embodiments, the heating device in step S1 is an oven with a heating temperature of 95°C and a heating time of 7 minutes.
[0045] To improve adhesion and thus enhance the connection stability between the PVC film and the ceiling fan blades, the adhesive used in steps S2 and S4 is white glue. This white glue can be, for example, a veneer adhesive from the Sanma brand.
[0046] To ensure that the ceiling fan blades have good mechanical strength and durability, the ceiling fan blades are made of MDF, plywood, composite board, or solid wood.
[0047] The rolling device is a rubber roller with elastic deformation. If it is made of soft materials such as silicone or rubber, the rubber roller can roll the PVC film paper better so that the PVC film paper can fit the shape of the corresponding surface of the ceiling fan blade. At the same time, it can also reduce the probability of scratching or damaging the PVC film paper and play a certain protective role.
Claims
1. A method for manufacturing a moisture-proof ceiling fan blade, wherein the ceiling fan blade (1) comprises an upper surface (11) and a lower surface (12), the upper surface (11) being planar, the lower surface (12) being planar in the middle, and a transition slope (13) being provided between the periphery of the lower surface (12) and the edge of the upper surface (11); characterized in that The production and processing method includes the following steps: S1. Place the PVC film paper in a heating device for heating and softening treatment. The heating temperature is 80-100°C and the heating time is 5-10 minutes. S2. Place the ceiling fan blade (1) with the lower surface (12) facing up on the glue applicator to apply glue to the lower surface (12) and the transition slope (13). Then, attach the PVC film paper softened in step S1 to the lower surface (12) and the transition slope (13) of the ceiling fan blade (1) coated with glue. S3. Place the ceiling fan blade (1) with PVC film paper pasted in step S2 on the rolling device for rolling treatment, so that the PVC film paper is rolled and pasted onto the lower surface (12) and the transition slope (13) respectively. Then trim the side of the PVC film paper on the ceiling fan blade (1). S4. Place the ceiling fan blade (1) from step S3 with its upper surface (11) facing upward on the glue applicator to apply glue to the upper surface (11). Then, attach the softened PVC film from step S1 to the upper surface (11) of the ceiling fan blade (1) coated with glue, or attach the PVC film to the upper surface (11) of the ceiling fan blade (1) coated with glue. S5. Place the ceiling fan blade (1) with PVC film paper pasted in step S4 on the rolling device for rolling treatment, so that the PVC film paper is rolled and pasted onto the upper surface (11). Then trim the side of the PVC film paper on the ceiling fan blade (1).
2. The method for producing and processing a moisture-proof ceiling fan blade according to claim 1, characterized in that... In step S1, several pieces of the required PVC film are first cut from a PVC film paper, and the PVC film paper is larger than the corresponding surface of the ceiling fan blade.
3. The method for producing and processing a moisture-proof ceiling fan blade according to claim 2, characterized in that... In step S1, multiple PVC film sheets are placed in a heating device and heated and softened simultaneously.
4. The method for producing and processing a moisture-proof ceiling fan blade according to claim 1, characterized in that... In step S2, several ceiling fan blades (1) are placed on the glue applicator with their lower surfaces (12) facing upwards and spaced apart to apply glue to the lower surfaces (12) and transition slopes (13). Then, a piece of PVC film paper softened in step S1 is simultaneously pasted onto the lower surfaces (12) and transition slopes (13) of several ceiling fan blades (1) coated with glue. In step S3, several ceiling fan blades (1) with PVC film paper pasted on them in step S2 are placed on a rolling device for rolling treatment, so that the PVC film paper is rolled and pasted onto the lower surface (12) and the transition slope (13). Then, the sides of the PVC film paper on the ceiling fan blades (1) are separated, cut and trimmed.
5. The method for producing and processing a moisture-proof ceiling fan blade according to claim 4, characterized in that... In step S4, the upper surfaces (11) of several ceiling fan blades (1) from step S3 are placed on the gluing device with their upper surfaces (11) facing upwards and spaced apart to apply glue to the upper surfaces (11). Then, a piece of PVC film paper softened in step S1 is simultaneously pasted onto the upper surfaces (11) of several ceiling fan blades (1) coated with glue, or the PVC film paper is then pasted onto the upper surfaces (11) of the ceiling fan blades (1) coated with glue. In step S5, several ceiling fan blades (1) with PVC film paper pasted on them in step S4 are placed on a rolling device for rolling treatment, so that the PVC film paper is rolled and pasted onto the upper surface (11). Then, the sides of the PVC film paper on the ceiling fan blades (1) are trimmed.
6. A method for manufacturing and processing a moisture-proof ceiling fan blade according to any one of claims 1-5, characterized in that... The heating device in step S1 is an oven with a heating temperature of 80-100°C and a heating time of 5-10 minutes.
7. The method for producing and processing a moisture-proof ceiling fan blade according to claim 6, characterized in that... The heating device in step S1 is an oven with a heating temperature of 90°C and a heating time of 8 minutes.
8. The method for producing and processing a moisture-proof ceiling fan blade according to claim 1, characterized in that... The adhesive used in steps S2 and S4 is white glue.
9. The method for producing and processing a moisture-proof ceiling fan blade according to claim 1, characterized in that... The ceiling fan blades are made of MDF, plywood, composite board, or solid wood.
10. The method for producing and processing a moisture-proof ceiling fan blade according to claim 1, characterized in that... The rolling device is a rubber roller with elastic deformation.