Blade capable of being selectively installed, ceiling fan and machining method of blade
By setting the center symmetrically on the fan blades and printing the decorative layer with UV, the problems of inconvenience in blade installation and traditional decoration methods are solved, selective installation and personalized product production are realized, and the practicality and market competitiveness of the product are improved.
Patent Information
- Application Number
- CN202411985486.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-04-29
AI Technical Summary
The existing fan blades can only achieve a single installation method during the installation process, which is inconvenient to install; traditional decoration methods such as spraying and placing decorative paper have the risk of heavy metal exceeding the standard, the decorative paper has a short service life, low recognition, and long processing time, and cannot meet consumers' pursuit of different patterns.
By symmetrically setting the center of the blade body, the first surface is integrally formed with the first inclined surface, and the second surface is integrally formed with the second inclined surface, the first decoration layer and the second decoration layer have the same or different patterns, selective installation is achieved, and UV printing is used instead of the traditional decoration method.
The selective installation of blades is realized to meet different installation and use needs, with high practicality and easy installation; at the same time, it avoids the inventory pressure of decorative paper, reduces production costs, and efficiently produces blades with different patterns, meeting users' needs for personalized products.
Smart Images

Figure CN119900734A_ABST
Abstract
Description
[Technical field]
[0001] The invention relates to a blade that can be selectively installed, a ceiling fan and a blade processing method. [Background technology]
[0002] Currently, due to design and structural factors, fan blades need to be installed with the lower surface of the blade facing downward and the upper surface facing upward during installation, that is, only a single installation method can be implemented and it cannot be installed according to usage requirements, which makes installation inconvenient and has low practicality.
[0003] In addition, traditional fan blades are usually decorated and protected by spraying paint or sticking decorative paper on the blade surface during the manufacturing process. However, paint often contains heavy metals, which poses a risk of excessive heavy metal content. When decorative paper is used to decorate blades, the decorative paper has a short service life, low recognition, and a long processing time. Some special-shaped blades are difficult to process with decorative paper. In addition, blade manufacturers also need to stock decorative papers of different colors according to user needs, such as different colors of Polaroid paper or Walter paper. Blade manufacturers' purchase of decorative paper is often limited by the minimum order quantity of the decorative paper supplier, resulting in high inventory pressure for decorative paper, increased production and operating costs, and relatively single products that cannot meet consumers' pursuit of different colors.
[0004] In addition, during the production and processing of some blades, the blades are usually decorated, waterproofed and protected by blistering PVC film paper on the corresponding surface of the processed board (MDF, plywood, composite board or solid wood board, etc.). At present, during the blistering of PVC film paper, the blades need to be heated to achieve blistering, which easily causes the blades to deform due to heat, affecting the stability of the blades' rotation and generating vibration and noise.
[0005] Furthermore, currently, the PVC film is usually blister-coated on the corresponding surface of the whole processed plate, and then the whole processed plate is machined to form a number of blades. The above-mentioned machining method is prone to scratching the PVC film, and the quality of the blades cannot be guaranteed.
[0006] Therefore, the present invention is studied and proposed in view of the above problems. [Summary of the invention]
[0007] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a processing method for blades, ceiling fans and leaflets that can be selectively installed, by making the blade body centrally symmetrical and the second inclined surface centrally symmetrical with the first inclined surface, the first surface and the first inclined surface are integrally printed with a first decorative layer, the second surface and the second inclined surface are integrally printed with a second decorative layer, and the first decorative layer and the second decorative layer have the same or different patterns. For this reason, the present invention can install the blade with the first surface facing up or down according to the installation and use requirements, so as to achieve selective installation and meet different installation and use requirements, with high practicality and easy installation. In addition, the decorative layer uses UV printing instead of traditional decorative paper or spray painting, which not only avoids the decorative paper inventory of blade manufacturers and reduces production costs, but also can efficiently produce blades with different patterns. This process is also applicable to blades with special structures that cannot be processed with stickers, so that product patterns and shapes are diversified, meeting the user's pursuit of personalization.
[0008] The present invention is achieved through the following technical solutions:
[0009] A blade that can be selectively installed includes a centrally symmetrical blade body 1, wherein a blade mounting portion 10 is provided at the root of the blade body 1; the blade body 1 has a first surface 11 and a second surface 12, a first inclined surface 13 is provided at the edge of the first surface 11 and extends along the length direction, a second inclined surface 14 is provided at the edge of the second surface 12 and extends along the length direction, and the second inclined surface 14 is centrally symmetrical with the first inclined surface 13, the first surface 11 and the first inclined surface 13 are integrally printed with a first decorative layer 15, the second surface 12 and the second inclined surface 14 are integrally printed with a second decorative layer 16, and the first decorative layer 15 and the second decorative layer 16 have the same or different patterns.
[0010] In the above-mentioned selectively installable blade, a white primer layer is provided between the first decorative layer 15 , the second decorative layer 16 and the blade body 1 .
[0011] As described above, a blade that can be optionally installed, the first inclined surface 13 includes a first lower inclined portion 131, a first arc portion 132 and a first upper inclined portion 133, an edge of the first lower inclined portion 131 is indirectly connected to the corresponding edge of the second surface 12, the other edge of the first lower inclined portion 131 is connected to an edge of the first upper inclined portion 133 through the first arc portion 132, and the other edge of the first upper inclined portion 133 is connected to the corresponding edge of the first surface 11; the second inclined surface 14 includes a second lower inclined portion, a second arc portion and a second upper inclined portion, an edge of the second lower inclined portion is indirectly connected to the corresponding edge of the first surface 11, the other edge of the second lower inclined portion is connected to an edge of the second upper inclined portion through the second arc portion, and the other edge of the second upper inclined portion is connected to the corresponding edge of the second surface 12; or, the first inclined surface 13 and the second inclined surface 14 are arc surface settings.
[0012] For the blade that can be selectively installed as described above, the angle α between the first lower inclined portion 131 and the horizontal plane satisfies 10-30°, and the angle β between the first upper inclined portion 133 and the horizontal plane satisfies 10-30°.
[0013] The present invention also provides a ceiling fan, comprising a driving motor and a blade as described above that can be selectively installed and is directly or indirectly connected to the driving motor.
[0014] The present invention also provides a method for processing a blade, wherein the blade comprises a centrally symmetrical blade body 1, wherein a blade mounting portion 10 is provided at the root of the blade body 1; the blade body 1 comprises a first surface 11 and a second surface 12, wherein a first inclined surface 13 is provided at the edge of the first surface 11 and extends along the length direction, and a second inclined surface 14 is provided at the edge of the second surface 12 and extends along the length direction, and the second inclined surface 14 is centrally symmetrically provided with the first inclined surface 13, the first surface 11 and the first inclined surface 13 are integrally formed with a first decorative layer 15 printed thereon, and the second surface 12 and the second inclined surface 14 are integrally formed with a second decorative layer 16 printed thereon, and the first decorative layer 15 and the second decorative layer 16 have the same or different patterns; a white primer layer is provided between the first decorative layer 15, the second decorative layer 16 and the blade body 1, and the processing method comprises the following steps:
[0015] S1, machining the substrate to be processed to a predetermined length and width to form the blade body 1;
[0016] S2, spraying paint on the side and end surfaces of the blade body 1;
[0017] S3, rolling or spraying white primer on the surface of the blade body 1 to form the white primer layer;
[0018] S4. A first decorative layer 15 is integrally printed on the white primer layer on the first surface 11 and the first inclined surface 13 by UV printing, and a second decorative layer 16 is integrally printed on the white primer layer on the second surface 12 and the second inclined surface 14, wherein the first decorative layer 15 and the second decorative layer 16 have the same or different patterns.
[0019] In the blade processing method as described above, the step S3 includes the following steps: S31, firstly roller coating or spraying white primer on the first surface 11 and the first inclined surface 13 to form the white primer layer; S32, then roller coating or spraying white primer on the second surface 12 and the second inclined surface 14 to form the white primer layer.
[0020] The blade processing method as described above further includes S5, treating the blade body 1 obtained in step S4 with varnish and drying it.
[0021] In the blade processing method, the curing process is performed by using an LED cold light source in step S4.
[0022] In the blade processing method, the LED cold light source is arranged on the corresponding UV printing head.
[0023] In the blade processing method as described above, in the step S4, the UV printing method uses the CMYKW printing mode to print the first decorative layer 15 in steps; the first decorative layer 15 includes at least two different first decorative parts, and the UV printing method in the step S4 uses the CMYKW printing mode to first print and shape a first decorative part, and then print and shape another first decorative part.
[0024] In the above-mentioned blade processing method, the ink used in the UV printing method in step S4 includes the following components:
[0025] 10-50% epoxy resin with CAS number 2386-87-0;
[0026] 10-50% epoxy monomer with CAS number 15957-34-3;
[0027] 0-30% epoxy monomer with CAS number 106-87-6;
[0028] 0-30% epoxy monomer with CAS number 82428-30-6;
[0029] 0-30% epoxy monomer with CAS number 37674-57-0;
[0030] 0-30% of acrylic acid monomer with CAS number 86273-46-3;
[0031] 0-30% of acrylic acid monomer with CAS number 13048-33-4;
[0032] 2-8% of photoinitiator with CAS number 71449-78-0;
[0033] 2-5% of photoinitiator with CAS number 89452-37-9;
[0034] 2-5% of photoinitiator with CAS number 61358-25-6;
[0035] Pigment with CAS number 1333-86-4 0-8%;
[0036] CAS No. 67763-03-5 additive 0-2%.
[0037] Compared with the prior art, the present invention has the following advantages:
[0038] 1. The present invention makes the blade body centrally symmetrical and the second inclined surface centrally symmetrical with the first inclined surface, the first surface and the first inclined surface are integrally printed with a first decorative layer, the second surface and the second inclined surface are integrally printed with a second decorative layer, and the first decorative layer and the second decorative layer have the same or different patterns. Therefore, the present invention can install the blade with the first surface facing upward or downward according to installation and use requirements, so as to achieve selective installation and meet different installation and use requirements, with high practicality and convenient installation. In addition, the decorative layer uses UV printing instead of traditional decorative paper or spray painting, which not only avoids the decorative paper inventory of blade manufacturers and reduces production costs, but also can efficiently produce blades with different patterns. This process is also applicable to blades with special structures that cannot be processed with stickers, so that product patterns and shapes are diversified, meeting the user's pursuit of personalization.
[0039] 2. The UV printing method of the present invention uses the CMYKW printing mode to print the first decorative layer in steps, which can ensure more efficient printing, better quality and better highlight effect.
[0040] 3. The present invention uses LED cold light source for curing, which can effectively avoid the problem of blade deformation caused by heating required for conventional drying and curing, and also solves the problem of high energy consumption and environmental pollution caused by heating and drying, ensuring that the blade structure is stable, reliable and environmentally friendly.
[0041] 4. The ink used in the UV printing method of the present invention has the characteristic of good stability.
Brief Description of the Drawings
[0042] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:
[0043] Figure 1 This is one of the three-dimensional schematic diagrams of embodiment 1 of the present invention.
[0044] Figure 2 This is the second stereoscopic schematic diagram of embodiment 1 of the present invention.
[0045] Figure 3 It is a front view schematic diagram of embodiment 1 of the present invention.
[0046] Figure 4 This is one of the side view schematic diagrams of embodiment 1 of the present invention.
[0047] Figure 5 This is the second side view schematic diagram of embodiment 1 of the present invention.
[0048] Figure 6 This is one of the three-dimensional schematic diagrams of embodiment 2 of the present invention.
[0049] Figure 7 This is the second stereoscopic schematic diagram of embodiment 2 of the present invention.
[0050] Figure 8 It is a side view schematic diagram of embodiment 2 of the present invention.
[0051] Fig. 9 This is a schematic diagram of the three-dimensional structure of a ceiling fan when the blades of Example 2 of the present invention are connected to a drive motor for use. [Specific implementation method]
[0052] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0053] like Figure 1-9 As shown, the present invention is a blade that can be selectively installed, including a centrally symmetrical blade body 1, wherein a blade installation portion 10 is provided at the root of the blade body 1; the blade body 1 has a first surface 11 and a second surface 12, a first inclined surface 13 is provided at the edge of the first surface 11 and extends along the length direction, a second inclined surface 14 is provided at the edge of the second surface 12 and extends along the length direction, and the second inclined surface 14 is centrally symmetrical with the first inclined surface 13, the first surface 11 and the first inclined surface 13 are integrally printed with a first decorative layer 15, the second surface 12 and the second inclined surface 14 are integrally printed with a second decorative layer 16, and the first decorative layer 15 and the second decorative layer 16 have the same or different patterns. The present invention makes the blade body centrally symmetrical and the second inclined surface centrally symmetrical with the first inclined surface, the first surface and the first inclined surface are integrally printed with a first decorative layer, the second surface and the second inclined surface are integrally printed with a second decorative layer, and the first decorative layer and the second decorative layer have the same or different patterns. Therefore, the present invention can install the blade with the first surface facing upward or downward according to installation and use requirements, thereby achieving selective installation and meeting different installation and use requirements. It is highly practical and easy to install. In addition, the decorative layer uses UV printing instead of traditional decorative paper or spray painting, which not only avoids the decorative paper inventory of blade manufacturers and reduces production costs, but also can efficiently produce blades with different patterns. This process is also applicable to blades with special structures that cannot be processed with stickers, so that product patterns and shapes are diversified, meeting the user's pursuit of personalization.
[0054] Wherein, in the present invention, both the first surface and the second surface are plane arrangements.
[0055] In order to improve the structural performance of the blade and the subsequent printing effect, a white primer layer is provided between the first decorative layer 15 , the second decorative layer 16 and the blade body 1 .
[0056] like Figure 6-8As shown, in order to improve the spoiler and wind shearing effect, the first inclined surface 13 includes a first lower inclined portion 131, a first arc portion 132 and a first upper inclined portion 133, an edge of the first lower inclined portion 131 is indirectly connected to the corresponding edge of the second surface 12, another edge of the first lower inclined portion 131 is connected to an edge of the first upper inclined portion 133 through the first arc portion 132, another edge of the first upper inclined portion 133 is connected to the corresponding edge of the first surface 11, and the second inclined surface 14 includes a second lower inclined portion, a second arc portion and a second upper inclined portion, an edge of the second lower inclined portion is indirectly connected to the corresponding edge of the first surface 11, another edge of the second lower inclined portion is connected to an edge of the second upper inclined portion through the second arc portion, and another edge of the second upper inclined portion is connected to the corresponding edge of the second surface 12. Figure 6 , 8 As shown, an edge of the first lower inclined portion 131 is connected to a corresponding edge of the second surface 12 through a side surface.
[0057] like Figure 1-5 As shown, the first inclined surface 13 and the second inclined surface 14 are arranged as arc surfaces. Figure 1 , 5 As shown, one edge of the first inclined surface 13 is connected to the corresponding edge of the second surface 12 through the side surface, and the other edge of the first inclined surface 13 is connected to the corresponding edge of the first surface 11.
[0058] like Figure 6-8 As shown, in order to improve the spoiler and wind shearing effect, the angle α between the first lower inclined portion 131 and the horizontal plane meets 10-30°, and the angle β between the first upper inclined portion 133 and the horizontal plane meets 10-30°. Preferably, the angle α meets 14°, and the angle β meets 10°. Alternatively, the angle α meets 20°, and the angle β meets 16°.
[0059] like Fig. 9 As shown, a ceiling fan of the present invention comprises a driving motor and a blade that can be selectively installed and is directly or indirectly connected to the driving motor.
[0060] The present invention provides a method for processing a blade, wherein the blade comprises a centrally symmetrical blade body 1, wherein a blade mounting portion 10 is provided at the root of the blade body 1; the blade body 1 comprises a first surface 11 and a second surface 12, wherein a first inclined surface 13 is provided at the edge of the first surface 11 and extends along the length direction, and a second inclined surface 14 is provided at the edge of the second surface 12 and extends along the length direction, and the second inclined surface 14 is centrally symmetrically provided with the first inclined surface 13, the first surface 11 and the first inclined surface 13 are integrally formed with a first decorative layer 15 printed thereon, and the second surface 12 and the second inclined surface 14 are integrally formed with a second decorative layer 16 printed thereon, and the first decorative layer 15 and the second decorative layer 16 have the same or different patterns; a white primer layer is provided between the first decorative layer 15, the second decorative layer 16 and the blade body 1, and the processing method comprises the following steps:
[0061] S1, machining the substrate to be processed to a predetermined length and width to form the blade body 1;
[0062] S2, spraying paint on the side and end surfaces of the blade body 1;
[0063] S3, rolling or spraying white primer on the surface of the blade body 1 to form the white primer layer;
[0064] S4, a first decorative layer 15 is integrally printed on the white primer layer on the first surface 11 and the first inclined surface 13 by UV printing, and a second decorative layer 16 is integrally printed on the white primer layer on the second surface 12 and the second inclined surface 14, wherein the first decorative layer 15 and the second decorative layer 16 have the same or different patterns. In the printing method of the present invention, the decorative layer is printed by UV printing instead of the traditional decorative paper or spray paint, which can not only avoid the decorative paper inventory of the blade manufacturer and reduce the production cost, but also can efficiently produce blades with different patterns. The process is also applicable to blades with special structures that cannot be processed with stickers, so that the product patterns and shapes are diversified, meeting the user's pursuit of personalization.
[0065] Preferably, the step S3 comprises the following steps: S31, firstly roller coating or spraying white primer on the first surface 11 and the first inclined surface 13 to form the white primer layer; S32, then roller coating or spraying white primer on the second surface 12 and the second inclined surface 14 to form the white primer layer.
[0066] In order to ensure the waterproof performance of the blade, the processing method further includes S5, treating the blade body 1 obtained in step S4 with varnish and drying it.
[0067] In the step S4, the curing process is performed by using an LED cold light source, and the LED cold light source is arranged on the corresponding UV print head, which can effectively avoid the problem that conventional drying and curing requires heating to cause deformation of the blades, and also solve the problem that heating and drying have high energy consumption and are not environmentally friendly, ensuring that the blade structure is stable, reliable and environmentally friendly.
[0068] In the step S4, the UV printing method uses the CMYKW printing mode to print the first decorative layer 15 in steps; the first decorative layer 15 includes at least two different first decorative parts, and the UV printing method in the step S4 uses the CMYKW printing mode to first print and shape a first decorative part, and then print and shape another first decorative part, which can ensure that the printing is more efficient and of better quality and good highlight effect. The UV printing method in the step S4 can be printed by an OSN-ONEPASS printer. Among them, the printing method and structure of the second decorative layer 16 are the same as the printing method and structure of the first decorative layer 15, and will not be described here.
[0069] The ink used in the UV printing method in step S4 includes the following components:
[0070] 10-50% epoxy resin with CAS number 2386-87-0;
[0071] 10-50% epoxy monomer with CAS number 15957-34-3;
[0072] 0-30% epoxy monomer with CAS number 106-87-6;
[0073] 0-30% epoxy monomer with CAS number 82428-30-6;
[0074] 0-30% epoxy monomer with CAS number 37674-57-0;
[0075] 0-30% of acrylic acid monomer with CAS number 86273-46-3;
[0076] 0-30% of acrylic acid monomer with CAS number 13048-33-4;
[0077] 2-8% of photoinitiator with CAS number 71449-78-0;
[0078] 2-5% of photoinitiator with CAS number 89452-37-9;
[0079] 2-5% of photoinitiator with CAS number 61358-25-6;
[0080] Pigment with CAS number 1333-86-4 0-8%;
[0081] The additive with CAS number of 67763-03-5 is 0-2%. The ink of the present invention has the characteristic of good stability.
[0082] For example, the ink used in the UV printing method in step S4 includes the following components:
[0083] 15.7% epoxy resin with CAS number 2386-87-0;
[0084] 25% epoxy monomer with CAS number 15957-34-3;
[0085] 10% epoxy monomer with CAS number 106-87-6;
[0086] 13% epoxy monomer with CAS number 82428-30-6;
[0087] 12% epoxy monomer with CAS number 37674-57-0;
[0088] Acrylic acid monomer with CAS number 86273-46-3 6%;
[0089] Acrylic acid monomer with CAS number 13048-33-4 8%;
[0090] 3% of photoinitiator with CAS number 71449-78-0;
[0091] 2.4% of photoinitiator with CAS number 89452-37-9;
[0092] 2.4% of photoinitiator with CAS number 61358-25-6;
[0093] Pigment with CAS number 1333-86-4 2%;
[0094] 0.5% additive with CAS number 67763-03-5.
[0095] The ink used in the UV printing method in step S4 includes the following components: 10% epoxy resin with CAS number 2386-87-0;
[0096] 22% epoxy monomer with CAS number 15957-34-3;
[0097] 8% epoxy monomer with CAS number 106-87-6;
[0098] 5% epoxy monomer with CAS number 82428-30-6;
[0099] 10% epoxy monomer with CAS number 37674-57-0;
[0100] Acrylic acid monomer with CAS number 86273-46-3 15%;
[0101] Acrylic acid monomer with CAS number 13048-33-4 15%;
[0102] 5% of photoinitiator with CAS number 71449-78-0;
[0103] 3% of photoinitiator with CAS number 89452-37-9;
[0104] 3% of photoinitiator with CAS number 61358-25-6;
[0105] Pigment with CAS number 1333-86-4 3%;
[0106] CAS No. 67763-03-5 additive 1%.
Claims
1. A blade that can be optionally installed, characterized in that The invention comprises a centrally symmetrical blade body (1), wherein a blade mounting portion (10) is provided at the root of the blade body (1); the blade body (1) comprises a first surface (11) and a second surface (12); a first inclined surface (13) is provided at the edge of the first surface (11) and extends along the length direction; a second inclined surface (14) is provided at the edge of the second surface (12) and extends along the length direction; the second inclined surface (14) and the first inclined surface (13) are centrally symmetrically arranged; a first decorative layer (15) is printed integrally with the first surface (11) and the first inclined surface (13); a second decorative layer (16) is printed integrally with the second surface (12) and the second inclined surface (14); the first decorative layer (15) and the second decorative layer (16) have the same or different patterns.
2. A selectively installable blade according to claim 1, characterized in that A white primer layer is provided between the first decorative layer (15), the second decorative layer (16) and the blade body (1).
3. A selectively installable blade according to claim 1 or 2, characterized in that The first inclined surface (13) comprises a first lower inclined portion (131), a first arc portion (132) and a first upper inclined portion (133); an edge of the first lower inclined portion (131) is indirectly connected to a corresponding edge of the second surface (12); another edge of the first lower inclined portion (131) is connected to an edge of the first upper inclined portion (133) through the first arc portion (132); another edge of the first upper inclined portion (133) is connected to a corresponding edge of the first surface (11); the second inclined surface (14) comprises a second lower inclined portion, a second arc portion and a second upper inclined portion; an edge of the second lower inclined portion is indirectly connected to a corresponding edge of the first surface (11); another edge of the second lower inclined portion is connected to an edge of the second upper inclined portion through the second arc portion; another edge of the second upper inclined portion is connected to a corresponding edge of the second surface (12); or, the first inclined surface (13) and the second inclined surface (14) are arc surfaces.
4. A selectively installable blade according to claim 3, characterized in that An included angle α between the first lower inclined portion (131) and the horizontal plane satisfies 10-30°, and an included angle β between the first upper inclined portion (133) and the horizontal plane satisfies 10-30°.
5. A ceiling fan, characterized in that The invention comprises a driving motor and a blade which can be selectively installed as claimed in any one of claims 1 to 4 and which is directly or indirectly connected to the driving motor.
6. A method for processing a blade, characterized in that The blade comprises a centrally symmetrical blade body (1), wherein a blade mounting portion (10) is provided at the root of the blade body (1); the blade body (1) comprises a first surface (11) and a second surface (12); a first inclined surface (13) is provided at the edge of the first surface (11) and extends along the length direction; a second inclined surface (14) is provided at the edge of the second surface (12) and extends along the length direction; the second inclined surface (14) and the first inclined surface (13) are centrally symmetrically arranged; a first decorative layer (15) is printed integrally with the first surface (11) and the first inclined surface (13); a second decorative layer (16) is printed integrally with the second surface (12) and the second inclined surface (14); the first decorative layer (15) and the second decorative layer (16) have the same or different patterns; a white primer layer is provided between the first decorative layer (15), the second decorative layer (16) and the blade body (1); and the processing method comprises the following steps: S1, machining the substrate to be machined to a predetermined length and width to form the blade body (1); S2, spraying paint on the side and end surfaces of the blade body (1); S3, performing roller coating or spraying of white primer on the surface of the blade body (1) to form the white primer layer; S4, printing a first decorative layer (15) integrally on the white primer layer located on the first surface (11) and the first inclined surface (13) by UV printing, and printing a second decorative layer (16) integrally on the white primer layer located on the second surface (12) and the second inclined surface (14), wherein the first decorative layer (15) and the second decorative layer (16) have the same or different patterns.
7. A blade processing method according to claim 6, characterized in that The processing method further comprises S5, performing varnish treatment on the blade body (1) obtained in step S4 and drying the blade body (1).
8. A blade processing method according to claim 6, characterized in that In the step S4, the curing process is performed by using an LED cold light source.
9. A blade processing method according to claim 6, characterized in that In the step S4, the UV printing method uses a CMYKW printing mode to print the first decorative layer (15) in steps; The first decorative layer (15) comprises at least two different first decorative parts. In the step S4, the UV printing method uses the CMYKW printing mode to first print and shape one first decorative part, and then print and shape another first decorative part.
10. A blade processing method according to any one of claims 6 to 9, characterized in that The ink used in the UV printing method in step S4 includes the following components: 10-50% epoxy resin with CAS number 2386-87-0; 10-50% epoxy monomer with CAS number 15957-34-3; 0-30% epoxy monomer with CAS number 106-87-6; 0-30% epoxy monomer with CAS number 82428-30-6; 0-30% epoxy monomer with CAS number 37674-57-0; 0-30% of acrylic acid monomer with CAS number 86273-46-3; 0-30% of acrylic acid monomer with CAS number 13048-33-4; 2-8% of photoinitiator with CAS number 71449-78-0; 2-5% of photoinitiator with CAS number 89452-37-9; 2-5% of photoinitiator with CAS number 61358-25-6; Pigment with CAS number 1333-86-4 0-8%; CAS No. 67763-03-5 additive 0-2%.