CN117681421A - One-step process for panoramic canopy - Google Patents
One-step process for panoramic canopy Download PDFInfo
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- CN117681421A CN117681421A CN202311717152.9A CN202311717152A CN117681421A CN 117681421 A CN117681421 A CN 117681421A CN 202311717152 A CN202311717152 A CN 202311717152A CN 117681421 A CN117681421 A CN 117681421A
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- Prior art keywords
- foam
- glass fiber
- finished product
- semi
- panoramic
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 29
- 239000003365 glass fiber Substances 0.000 claims abstract description 25
- 239000004744 fabric Substances 0.000 claims abstract description 24
- 239000003292 glue Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000011265 semifinished product Substances 0.000 claims abstract description 18
- 238000000465 moulding Methods 0.000 claims abstract description 16
- 238000005096 rolling process Methods 0.000 claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 239000000047 product Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000002648 laminated material Substances 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000007493 shaping process Methods 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 abstract description 5
- 239000002344 surface layer Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005034 decoration Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The invention relates to the technical field of automotive upholstery, and discloses a one-step process of a panoramic canopy of sky, which comprises the following steps: step one, glass fiber glue rolling, namely, taking a glass fiber felt for single-sided glue rolling; spraying water from the PU, respectively adhering glass fiber felts on the upper surface and the lower surface of the PU foam, and then spraying water to soften the PU foam; thirdly, material combination, namely laying a base fabric with a PE film below the softened PU foam, and laying a fabric above the PU foam to form a laminated material; step four, hot press molding, namely placing the laminated material into a mold for press molding to obtain a semi-finished product, and setting mold cavities with different depths in the mold according to the strength requirements of different areas of the finished product ceiling so that the thickness of the semi-finished product corresponding to the high strength requirement area is larger than that of the semi-finished product corresponding to the low strength requirement area; step five, cooling and shaping; step six, cutting by a water knife; step seven, assembling accessories; and step eight, checking and boxing.
Description
Technical Field
The invention relates to the technical field of automotive upholstery, in particular to a one-step process of a panoramic awning ceiling.
Background
The automobile roof is a decoration piece arranged on a metal plate at the top of an automobile cockpit, plays roles of absorbing sound, insulating heat, beautifying the cockpit and the like, and in the times of pursuing higher performance, environment protection, light weight and energy saving, the automobile interior decoration is an important factor for people to select the automobile like the automobile appearance, so that the requirement on the automobile interior decoration piece is higher and higher.
The manufacturing process of the traditional panoramic canopy ceiling is a wet two-step method, namely, after a wet framework is manufactured in the first step, partial cutting of a canopy opening and front and rear edges is carried out, and when the surface layer fabrics are compounded in the second step, the surface layer fabrics are larger than the wet framework in the positions of the canopy opening and the front and rear edges, so that the surface layer fabrics at the notch of the canopy are reversely covered, and the visual effect of the canopy is improved. The process is complicated, two sets of dies are needed to be molded twice, and the base cloth is needed to be adopted, so that glue can be blocked when the base material is molded, the surface smoothness of the base material and the lamination of the fabric are ensured, and the cost is high.
At present, the industry also has a plurality of one-step wet processes, namely, the PU foam board, the glass fiber, the fabric of the surface layer and the non-woven fabric of the back layer are bonded together by adopting molding glue, and the wet ceiling is directly pressed, compared with the two-step process, the one-step wet process has the advantages of saving the composite procedure of the fabric of the surface layer, saving the glue for the composite of the non-woven fabric of the upper layer of the framework and the fabric of the surface layer, greatly reducing the manufacturing cost and reducing the odor of products. However, the overall rigidity of the canopy product obtained by the process is insufficient, and particularly in the case of narrow edges on both sides of the panoramic canopy, deformation and even fracture occur during handling and assembly, so that further optimization of the process and product structure is required.
Disclosure of Invention
Based on the problems, the invention aims to provide a one-step process of a panoramic canopy, which optimizes the process flow and the material consumption and improves the structural rigidity of the canopy.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a one-step process for a panoramic canopy of awning, comprising:
step one, glass fiber glue rolling, namely, taking a glass fiber felt for single-sided glue rolling;
spraying water from the PU, respectively adhering glass fiber felts on the upper surface and the lower surface of the PU foam, and then spraying water to soften the PU foam;
thirdly, material combination, namely laying a base fabric with a PE film below the softened PU foam, and laying a fabric above the PU foam to form a laminated material;
step four, hot press molding, namely placing the laminated material into a mold for press molding to obtain a semi-finished product, and setting mold cavities with different depths in the mold according to the strength requirements of different areas of the finished product ceiling so that the thickness of the semi-finished product corresponding to the high strength requirement area is larger than that of the semi-finished product corresponding to the low strength requirement area;
step five, cooling and shaping;
step six, cutting by a water knife;
step seven, assembling accessories;
and step eight, checking and boxing.
Optionally, in the first step, the gram weight of the glass fiber felt is 200g/m 2 And the glue rolling amount of the glass fiber felt positioned on the upper surface of the PU foam is 15g/m 2 ～25g/m 2 The glue rolling amount of the glass fiber felt positioned on the lower surface of the PU foam is 45g/m 2 ～55g/m 2 。
Optionally, in the second step, the density of the PU foam is 26kg/m 3 The softening water quantity is 25g/m 2 ～35g/m 2 。
Optionally, in step three, the grammage of the base fabric is 75g/m 2 The gram weight of the fabric is 190g/m 2 。
Optionally, in the fourth step, the upper die temperature of the die is 110 ℃, the lower die temperature is 130 ℃, the molding pressure is 15Mpa, and the molding time is 50s.
Optionally, in the fifth step, a natural cooling mode is adopted to naturally place the semi-finished product for 40s.
Optionally, in the sixth step, the cutting water pressure is 40000 psi-50000 psi, and the cutting air pressure is 0.4 Mpa-0.7 Mpa.
In conclusion, compared with the prior art, the one-step process of the panoramic canopy ceiling optimizes the aspects of materials, product structures, processing steps and the like, simplifies the process, reduces the manufacturing cost, ensures the quality of finished products and improves the structural rigidity of the canopy.
Drawings
FIG. 1 is a flow chart of a one-step process for a panoramic sunroof according to an embodiment of the present invention;
FIG. 2 is a schematic view of a structure of a laminated material in a one-step process of a panoramic canopy of an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a semi-finished product in a one-step process of a panoramic canopy of an embodiment of the present invention;
fig. 4 is a cross-sectional view A-A of fig. 3.
In the figure:
1. laminating materials; 11. glass fiber felt; 12. PU foam; 13. glue; 14. a base fabric; 15. a fabric; 2. a semi-finished product; 21. high strength required area.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
The preferred embodiment provides a one-step process of the panoramic roof canopy, realizes the one-step molding of the canopy by a wet method, and performs structural reinforcement design aiming at the narrow side condition of the panoramic roof canopy, fully considers the rigidity requirement, and avoids deformation and fracture.
Referring to fig. 1, the one-step process of the panoramic roof includes the following steps:
step one, glass fiber glue rolling, namely taking a glass fiber felt 11 to carry out single-sided glue rolling.
Step two, PU sprays water, respectively sticks glass fiber felt 11 on the upper surface and the lower surface of PU foam 12, and then sprays water to soften the PU foam 12.
Specifically, the glass fiber mat 11 was selected to have a grammage of 200g/m 2 The glass fiber felt 11 is sent into a glue rolling machine for glue rolling, and the glue rolling quantity of the glass fiber felt 11 positioned on the upper surface of the PU foam 12 is controlled at 15g/m 2 ～25g/m 2 Preferably 20g/m 2 Located PU foam 12, the glue rolling quantity of the glass fiber felt 11 on the lower surface is controlled to be 45g/m 2 ～55g/m 2 Preferably 50g/m 2 Therefore, the glass fiber density and the glue 13 consumption are reasonably selected, and the overall rigidity is increased.
Specifically, the PU foam 12 is selected to have a density of 26kg/m 3 Feeding the PU foam 12 into a softener, and uniformly spraying softened water on the surface of the PU foam 12 by the softener, wherein the softened water amount is 25g/m 2 ～35g/m 2 Preferably 30g/m 2 。
Thirdly, material combination, laying a base fabric 14 with a PE film below the softened PU foam 12, and laying a fabric 15 above the PU foam 12 to form a laminated material 1, wherein the detail is shown in fig. 2.
Preferably, the grammage of the base fabric 14 here is 75g/m 2 The grammage of the fabric 15 is 190g/m 2 。
And fourthly, hot press molding, namely placing the laminated material 1 into a die for press molding to obtain a semi-finished product 2, wherein the detail is shown in figure 3.
Preferably, the upper die temperature of the die is 110 ℃, the lower die temperature is 130 ℃, the molding pressure is 15Mpa, and the molding time is 50s.
It should be emphasized that the mold cavities of different depths are provided according to the strength requirements of different areas of the finished canopy, so that the thickness of the corresponding high strength requirement area 21 on the semi-finished product 2 is larger than the thickness of the corresponding low strength requirement area, as shown in fig. 4, for example, the thickness gradient design is performed on the modeling to increase the structural strength of the canopy.
And fifthly, cooling and shaping.
Specifically, the semi-finished product 2 is naturally placed for 40s by adopting a natural cooling mode, and thus the shaping can be effectively carried out.
And step six, cutting by a water knife.
Specifically, the shaped semi-finished product 2 is cut by a water knife, the cutting water pressure is controlled to be 40000 psi-50000 psi, and the cutting air pressure is controlled to be 0.4 Mpa-0.7 Mpa.
And step seven, assembling accessories.
Specifically, according to the functional requirements of the product, relevant accessories are assembled on the semi-finished product 2, and the finished ceiling is obtained.
And step eight, checking and boxing.
In conclusion, the one-step process of the panoramic canopy ceiling optimizes the aspects of materials, product structures, processing steps and the like, simplifies the process, reduces the manufacturing cost, ensures the quality of finished products and improves the structural rigidity of the canopy.
The above embodiments merely illustrate the basic principles and features of the present invention, and the present invention is not limited to the above embodiments, but can be variously changed and modified without departing from the spirit and scope of the present invention, which is within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The one-step process of the panoramic canopy of backbones is characterized by comprising the following steps of:
step one, glass fiber glue rolling, namely taking a glass fiber felt (11) to carry out single-sided glue rolling;
step two, PU sprays water, the glass fiber felt (11) is respectively stuck on the upper surface and the lower surface of the PU foam (12), and then the PU foam (12) is sprayed with water for softening;
thirdly, material combination, laying a base fabric (14) with a PE film below the softened PU foam (12), and laying a fabric (15) above the PU foam (12) to form a laminated material (1);
step four, hot press molding, namely placing the laminated material (1) into a mold for press molding to obtain a semi-finished product (2), and setting mold cavities with different depths according to the strength requirements of different areas of a finished product roof in the mold, so that the thickness of the semi-finished product (2) corresponding to the high strength requirement area is larger than that of the semi-finished product (2) corresponding to the low strength requirement area;
step five, cooling and shaping;
step six, cutting by a water knife;
step seven, assembling accessories;
and step eight, checking and boxing.
2. The panoramic canopy of heaves as recited in claim 1 in one stepThe method is characterized in that in the first step, the gram weight of the glass fiber felt (11) is 200g/m 2 And the glue rolling amount of the glass fiber felt (11) positioned on the upper surface of the PU foam (12) is 15g/m 2 ～25g/m 2 The glue rolling amount of the glass fiber felt (11) positioned on the lower surface of the PU foam (12) is 45g/m 2 ～55g/m 2 。
3. The one-step process of a panoramic sunroof according to claim 1, wherein in the second step, the density of the PU foam (12) is 26kg/m 3 The softening water quantity is 25g/m 2 ～35g/m 2 。
4. The panoramic sunroof one-step process according to claim 1, wherein in step three, the grammage of the base fabric (14) is 75g/m 2 The gram weight of the fabric (15) is 190g/m 2 。
5. The one-step process of a panoramic sunroof according to claim 1, wherein in the fourth step, the upper mold temperature of the mold is 110 ℃, the lower mold temperature is 130 ℃, the molding pressure is 15Mpa, and the molding time is 50s.
6. The one-step process of the panoramic sunroof according to claim 1, wherein in the fifth step, the semi-finished product (2) is naturally placed for 40s by adopting a natural cooling mode.
7. The one-step process of a panoramic sunroof according to claim 1, wherein in the sixth step, the cutting water pressure is 40000psi to 50000psi and the cutting air pressure is 0.4Mpa to 0.7Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311717152.9A CN117681421A (en) | 2023-12-13 | 2023-12-13 | One-step process for panoramic canopy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311717152.9A CN117681421A (en) | 2023-12-13 | 2023-12-13 | One-step process for panoramic canopy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117681421A true CN117681421A (en) | 2024-03-12 |
Family
ID=90138636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311717152.9A Pending CN117681421A (en) | 2023-12-13 | 2023-12-13 | One-step process for panoramic canopy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117681421A (en) |
-
2023
- 2023-12-13 CN CN202311717152.9A patent/CN117681421A/en active Pending
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