CN117984475A - Mold for producing vehicle interior trim part, preparation method of mold and vehicle interior trim part - Google Patents
Mold for producing vehicle interior trim part, preparation method of mold and vehicle interior trim part Download PDFInfo
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- CN117984475A CN117984475A CN202211348798.XA CN202211348798A CN117984475A CN 117984475 A CN117984475 A CN 117984475A CN 202211348798 A CN202211348798 A CN 202211348798A CN 117984475 A CN117984475 A CN 117984475A
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- feature
- interior trim
- vehicle interior
- mold
- trim part
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- 238000002360 preparation method Methods 0.000 title abstract description 6
- 238000005422 blasting Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000003754 machining Methods 0.000 claims description 7
- 238000005488 sandblasting Methods 0.000 claims description 6
- 239000010985 leather Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000001054 cortical effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a mold for producing a vehicle interior trim part, a preparation method thereof and the vehicle interior trim part, wherein the mold comprises a front mold, a rear mold, a first characteristic part and a second characteristic part which are arranged on one of the front mold and the rear mold together, and the first characteristic part is raised or recessed relative to the second characteristic part and is round or polygonal; the first feature is used for forming corresponding concave or convex parts on the vehicle interior trim part, and textures are arranged on the first feature or the second feature. The mold can produce vehicle interior trim parts with different glossiness at different positions, so that the overall technological sense and the stereoscopic sense of the vehicle interior trim parts are improved, passengers are given new feelings, and the market competitiveness of vehicles using the vehicle interior trim parts is enhanced.
Description
Technical Field
The invention particularly relates to a die for producing a vehicle interior trim part, a preparation method of the die and the vehicle interior trim part.
Background
When a person purchases a vehicle, only three aspects of the vehicle price, the vehicle interior space and the vehicle appearance can be generally perceived directly, and when the vehicle price and the vehicle interior space are almost equal, the vehicle appearance can become a decisive factor for a customer to select a certain vehicle type. An important component of the vehicle appearance is the vehicle interior trim, often with a single leather texture on certain vehicle interior trim surfaces, such as the automotive leather surface covering the passenger compartment surface; the leather texture can lead the whole vehicle interior trim part to have the same glossiness at any position and lack the technological sense and the three-dimensional sense from the visual sense.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a mold for producing a vehicle interior part, a method for producing the same, and a vehicle interior part produced by the mold, which can have different gloss at different positions.
The die comprises a front die, a rear die and a first feature part and a second feature part which are arranged on one of the front die and the rear die together, wherein the first feature part is raised or recessed relative to the second feature part and is round or polygonal; the first feature is used for forming corresponding concave or convex parts on the vehicle interior trim part, and textures are arranged on the first feature or the second feature.
Optionally, the first feature is raised relative to the second feature, the second feature having the texture provided thereon.
Optionally, a mold for producing a vehicle interior trim part according to claim 1 or 2, comprising the steps of:
S10, machining a first characteristic part and a second characteristic part on a blank of a front die or a blank of a rear die, wherein the first characteristic part is raised or recessed relative to the second characteristic part;
and S20, engraving textures on the first feature part or the second feature part.
Optionally, in step S10, the first feature is machined by using a method of a computer numerical control machine tool, and between step S10 and step S20, the following steps are further included:
S11, sand blasting is carried out on the die, and parameters of the sand blasting operation are configured to eliminate tool marks on the surface of the die and ensure that the shape of the first feature is not damaged.
Optionally, the step S10 includes:
Machining the first feature and the second feature on a blank of a front die or a blank of a rear die using a first tool, wherein the diameter of the first tool is 2mm;
An R-angle of 0.2mm is machined at the interface of the first feature and the second feature using a second tool, wherein the second tool has a diameter of 0.4mm.
Optionally, in the step S11, the blasting air pressure is 0.6MPa, and the blasting depth is 5 to 10 μ.
Optionally, the method further comprises the following steps after step S20:
S21, carrying out sand blasting treatment on the blank of the front die or the blank of the rear die.
Optionally, in step S21, a blasting air pressure is 0.3MPa, and the blasting process is used to form the glossiness of the second feature to be 1.2-1.4.
The invention also provides a vehicle interior trim part produced by the die.
The invention also provides a vehicle interior trim part, which is characterized in that the vehicle interior trim part is produced by the die, the vehicle interior trim part is provided with a third characteristic part and a fourth characteristic part which are respectively formed by the first characteristic part and the second characteristic part in a corresponding way, and the thickness t of the vehicle interior trim part has the following relation with the height difference h between the third characteristic part and the fourth characteristic part:
h: t=1: 4, or
h：t＝1：5。
In summary, by arranging the first feature part and the second feature part on the mold, so that the first feature part is in a geometric shape, the first feature part is raised or recessed relative to the second feature part, and then the texture is engraved on the first feature part or the second feature part.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention, as well as the preferred embodiments thereof, together with the following detailed description of the invention, given by way of illustration only, together with the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a mold in an embodiment of the invention.
Fig. 2 is a schematic view of a vehicle interior part produced by a mold according to an embodiment of the present invention.
Fig. 3 is a schematic diagram II of a vehicle interior part produced by a mold according to an embodiment of the present invention.
Description of the reference numerals
1-Front mold, 2-rear mold, 3-first feature, 4-second feature, 5-third feature, 6-fourth feature.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
As shown in fig. 1, the present embodiment provides a mold for injection molding for producing a vehicle interior trim, comprising a front mold 1 and a rear mold 2; the rear die 2 has a rectangular cross section, and the front die 1 is provided with a first feature 3 and a second feature 4, wherein the first feature 3 is a six-edge type formed by protruding from the surface of the front die 1 towards the rear die 2, the second feature 4 is a platform area positioned outside the first feature 3, the second feature 4 is provided with a leather texture, and the first feature 3 has a smooth surface relative to the second feature 4. The specific process of forming the cavity by joining the front mold and the rear mold and producing the mold belongs to the prior art, and therefore, the description is omitted herein. When the mold is used for production, a vehicle interior part as shown in fig. 2 and 3 can be obtained, the vehicle interior part is provided with a plurality of third characteristic parts 5 which are in a six-edge concave shape, and is provided with a platform-shaped fourth characteristic part 6 which surrounds the periphery side of the third characteristic parts 5, the third characteristic parts 5 are formed by injection molding materials which are injected into the first characteristic parts 3 after the front and rear molds are clamped, and the fourth characteristic parts 6 are formed by the injection molding materials which are positioned at the periphery side of the first characteristic parts 3; meanwhile, since the second feature portion 4 is provided with the leather texture and the first feature portion 3 is not provided with the leather texture, the vehicle interior trim part can present the leather texture at the position of the fourth feature portion 6, and present the relatively smooth texture (namely, the non-leather texture) at the position of the third feature portion 5, so that the internal and external glossiness of the third feature portion 5 are different, and the vehicle interior trim part has obviously different glossiness at different positions when a viewer observes with naked eyes.
Preferably, the spacing between adjacent third features 5 should be greater than two-thirds of their cross-sectional area; it should be noted that the specific size and the degree of compactness of the third feature 5 can be flexibly set by those skilled in the art after knowing the above-mentioned setting principle and the achievable target effect.
The actual measurement proves that when the thickness of the vehicle interior part is t, the height difference between the third feature part 5 and the fourth feature part 6 is h, and h: t=1: 4, or h: t=1: and 5, the appearance of the vehicle interior trim part has better stereoscopic impression. Of course, the relationship between h and t can be flexibly set by a person skilled in the art, and by setting different ratios between h and t on different areas of the vehicle interior trim part, the person skilled in the art can also make the vehicle interior trim part exhibit the effect of gradual change of glossiness.
In some possible embodiments, by adjusting the density of the third features 5 on different regions of the vehicle interior trim part and adjusting the texture density on the fourth features 6 on different regions of the vehicle interior trim part, the skilled person can also make the regions of the vehicle interior trim part have different gloss which are obvious, so that the vehicle interior trim part exhibits a gloss gradient effect, for example, on the dashboard surface automobile leather, the third features 5 can be regularly distributed at the upper end of the automobile leather, and the distribution density of the third features 5 can be gradually reduced from the middle region of the automobile leather to the lower end thereof, and the texture density on the fourth features 6 can be gradually reduced.
Alternatively, the above arrangement applied to the front and rear dies 1,2 may also be reversed, i.e. the first and second features 3,4 are located on the rear die 2, the front die 1 having a rectangular cross section.
Alternatively, it is also possible to provide a texture on the first feature 3 and to provide the second feature 4 with a smooth surface with respect to the first feature 3.
Alternatively, the first feature 3 may also be in the form of a depression from the surface of the front mold 1 facing the rear mold 2 in a direction away from the rear mold 2, such that the third feature 5 on the correspondingly produced vehicle interior trim piece is convex.
Furthermore, the shape of the first feature 3 is not limited to a six-sided type, but may be any geometric shape, such as a circle, or other polygonal shape of non-six sides, which may be flexibly set by those skilled in the art as desired.
In summary, the invention also provides a preparation method of the mold, comprising the following steps:
S10: a first feature 3, which is a six-edged protrusion, is machined on the front die blank using CNC (computer numerical control machine). Preferably, the tool used for machining the first feature 3 in this step comprises a first tool and a second tool, wherein the first tool has a diameter of 2mm and the second tool has a diameter of 0.4mm, the first tool is used for semi-finishing and the second tool is used for finishing, i.e. the first tool machines the front mould blank before the second tool. At the same time, the second tool is arranged to be able to pour an R angle of 0.2mm at the interface of the first feature 3 and the second feature 4. More preferably, the roughness of the front mold blank obtained through this step is Ra0.32 to 0.63 μm.
S11: blasting the front mold blank with parameters configured to eliminate tool marks on the front mold blank surface (due to CNC machining) and to ensure that the raised sharp corners and edges of the first feature 3 are not damaged; preferably, the air pressure of the blasting apparatus is 0.6Mpa and the blasting depth (i.e. the thickness of the mould blasted off) is 5-10 μ, so as not to damage the shape of the first feature 3.
S12: and (5) masking the whole front mould blank by using glue.
S20: the second feature 4 is textured with a laser such that the second feature 4 has a cortical texture and the first feature 3 has a smooth surface relative to the second feature 4. Preferably, the engraving depth of the texture in this step is 90-110 mu; more preferably, the glossiness of the second feature 4 is 2.5-3.0 after this step is performed.
S21: the front mould blank is sandblasted, the parameters of which are configured to adjust the gloss of the front mould blank and to ensure that the first features 3 are not destroyed. Preferably, the air pressure of the blasting apparatus is 0.3Mpa, and the glossiness of the second feature 4 is 1.2-1.4 after this step is performed.
S22: and cleaning the front mould blank to obtain the front mould 1.
The front mould 1 is prepared according to the sequence of the steps, and the surface quality control of the product is facilitated through verification.
In summary, by arranging the first feature part 3 and the second feature part 4 on the mold, making the first feature part 3 be in a geometric shape, making the first feature part 3 be raised or recessed relative to the second feature part 4, and then engraving the texture on the first feature part 3 or the second feature part 4, the invention can provide the mold for producing the vehicle interior trim part, the preparation method thereof and the vehicle interior trim part, and the mold can produce the vehicle interior trim part with different glossiness at different positions, thereby improving the overall technological sense and the stereoscopic sense of the vehicle interior trim part, bringing new feelings to passengers, and enhancing the market competitiveness of vehicles using the vehicle interior trim part.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A mould for producing a vehicle interior trim part, characterized by comprising a front mould (1), a rear mould (2), and a first feature (3) and a second feature (4) arranged together on one of the front mould (1) and the rear mould (2), the first feature (3) being convex or concave with respect to the second feature (4) and being circular or polygonal; the first feature (3) is used for forming corresponding concave or convex parts on the vehicle interior trim part, and the first feature (3) or the second feature (4) is provided with textures.
2. A mould for producing a vehicle interior trim part according to claim 1, wherein the first feature (3) is raised with respect to the second feature (4), the second feature (4) being provided with the texture.
3. A method for producing a mold for producing a vehicle interior trim part, characterized by preparing the mold for producing a vehicle interior trim part according to claim 1 or 2, comprising the steps of:
S10, machining a first characteristic part (3) and a second characteristic part (4) on a blank of a front die (1) or a blank of a rear die (2), wherein the first characteristic part (3) is raised or recessed relative to the second characteristic part (4);
s20, engraving a texture on the first feature (3) or the second feature (4).
4. A method for manufacturing a mould for producing a vehicle interior trim part according to claim 3, characterized in that in step S10 the first feature (3) is machined using a computer numerically controlled machine tool, further comprising the steps of, between step S10 and step S20:
S11, sand blasting is carried out on the die, and parameters of the sand blasting operation are configured to eliminate tool marks on the surface of the die and ensure that the shape of the first feature (3) is not damaged.
5. The method for manufacturing a mold for producing an interior trim part of a vehicle according to claim 4, wherein the step S10 includes:
-machining the first feature (3) and the second feature (4) on a blank of a front mould (1) or a blank of a rear mould (2) using a first tool, wherein the diameter of the first tool is 2mm;
-machining an R-angle of 0.2mm at the interface of the first feature (3) and the second feature (4) using a second tool, wherein the diameter of the second tool is 0.4mm.
6. The method for manufacturing a mold for producing an interior trim part of a vehicle according to claim 4, wherein: in the step S11, the blasting air pressure is 0.6MPa, and the blasting depth is 5-10 mu.
7. The method for manufacturing a mold for producing a vehicle interior trim part according to claim 3, further comprising, after step S20, the steps of:
S21, performing sand blasting treatment on the blank of the front die (1) or the blank of the rear die (2).
8. The method for manufacturing a mold for producing an interior trim part of a vehicle according to claim 7, wherein: in step S21, the blasting air pressure is 0.3MPa, and the blasting treatment is used for forming the glossiness of the second feature part (4) to be 1.2-1.4.
9. A vehicle interior trim part produced from the mold of claim 1.
10. A vehicle interior trim part produced from the die set according to claim 2, having a third feature (5) and a fourth feature (6) formed by the first feature (3) and the second feature (4) respectively, the thickness t of the vehicle interior trim part having the following relationship with a height difference h between the third feature (5) and the fourth feature (6):
h: t=1: 4, or
h：t＝1：5。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211348798.XA CN117984475A (en) | 2022-10-31 | 2022-10-31 | Mold for producing vehicle interior trim part, preparation method of mold and vehicle interior trim part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211348798.XA CN117984475A (en) | 2022-10-31 | 2022-10-31 | Mold for producing vehicle interior trim part, preparation method of mold and vehicle interior trim part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117984475A true CN117984475A (en) | 2024-05-07 |
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ID=90897946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211348798.XA Pending CN117984475A (en) | 2022-10-31 | 2022-10-31 | Mold for producing vehicle interior trim part, preparation method of mold and vehicle interior trim part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117984475A (en) |
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2022
- 2022-10-31 CN CN202211348798.XA patent/CN117984475A/en active Pending
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