CN111731084A - Automobile sun shield and preparation method thereof - Google Patents
Automobile sun shield and preparation method thereof Download PDFInfo
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- CN111731084A CN111731084A CN202010707288.1A CN202010707288A CN111731084A CN 111731084 A CN111731084 A CN 111731084A CN 202010707288 A CN202010707288 A CN 202010707288A CN 111731084 A CN111731084 A CN 111731084A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
- B60J7/0007—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs moveable head-liners, screens, curtains or blinds for ceilings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
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- Engineering & Computer Science (AREA)
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- Textile Engineering (AREA)
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- Laminated Bodies (AREA)
Abstract
The invention provides an automobile sun shield and a preparation method thereof. The automobile sun shield comprises a first decorative fabric layer, a first non-ventilation film layer, a first local glass fiber material layer, a first integral glass fiber material layer, a base body layer, a second integral glass fiber material layer, a second local glass fiber material layer, a second non-ventilation film layer and a second decorative fabric layer which are sequentially stacked; the first local glass fiber material layer, the first integral glass fiber material layer, the base layer, the second integral glass fiber material layer and the second local glass fiber material layer are bonded through an adhesive. The automobile sun visor is obtained by sequentially laying materials of all layers after pretreatment, and carrying out hot press molding and cooling setting. The sun shield provided by the invention can meet the overall high-strength performance index of the automobile skylight sun shield, and can effectively reduce the overall weight of the sun shield and reduce the cost.
Description
Technical Field
The invention belongs to the technical field of automotive interior parts, and particularly relates to an automobile sun shield and a preparation method thereof.
Background
In modern society, automobiles have become more and more popular and become indispensable vehicles in people's lives. The top of the automobile is usually provided with a skylight, so that air in the automobile can be effectively circulated, the entering of fresh air is increased, and healthy and comfortable enjoyment is brought to passengers. Meanwhile, the automobile window can also be wide in view field and is commonly used for shooting requirements of mobile photography. Because the skylight is arranged at the top of the automobile, sunlight can penetrate through the skylight and directly reach the automobile, and the riding of passengers is affected, therefore, the skylight is generally provided with a sun shield for shielding the sunlight.
A conventional sunroof includes a slide rail, a motor, a glass plate, and a sunshade assembly. The automobile skylight sun shield comprises a skylight frame, a front sun shield and a rear sun shield, slide rails are arranged on the left side and the right side of the skylight frame in parallel, the front sun shield and the rear sun shield are arranged on the slide rails through slide carriages respectively, and handles are arranged on the front sun shield and the rear sun shield respectively. When the sun shading device is used, the sun shading plate of the skylight can be opened by pulling the handle to play a role in shading sunlight. When the sun visor is opened, the rear side of the front sun visor is spliced with the front side of the rear sun visor, so that sunlight projected from the skylight is shielded. When the sun visor is closed, the front sun visor slides under the roof in front of the sunroof, and the rear sun visor slides under the roof behind the sunroof.
The automobile skylight sun shield is generally arranged at an automobile skylight mechanism and plays roles of heat insulation, sound insulation and beautification. In the era of pursuing high performance, environmental protection, energy conservation, light weight and individuation, the interior trim of the automobile is the same as the appearance of the automobile, and becomes an important factor for people to select and purchase the automobile. Therefore, the demand for automotive interior parts is also increasing.
Automotive sunroof visors often have high strength performance requirements. If the bearing capacity of the sun visor is improved, the material consumption is increased, which is not favorable for the light weight of the sun visor and occupies more space in the vehicle. Accordingly, there is a need in the art for an automotive sunroof visor that has high strength while meeting the requirement of light weight.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an automobile sun visor and a preparation method thereof. The sun shield can meet the overall high-strength performance index of the automobile skylight sun shield, and can effectively reduce the overall weight of the sun shield and reduce the cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides an automobile sun visor, which is characterized by comprising a first decorative fabric layer, a first non-ventilation film layer, a first local glass fiber material layer, a first integral glass fiber material layer, a substrate layer, a second integral glass fiber material layer, a second local glass fiber material layer, a second non-ventilation film layer and a second decorative fabric layer which are sequentially stacked;
the first local glass fiber material layer, the first integral glass fiber material layer, the base layer, the second integral glass fiber material layer and the second local glass fiber material layer are bonded through an adhesive.
In the present invention, the first partial fiberglass material layer and the second partial fiberglass material layer are respectively made of fiberglass materials adhered to partial areas of the first non-breathable film layer and the second non-breathable film layer. The first integral glass fiber material layer and the second integral glass fiber material layer are respectively made of glass fiber materials adhered to the whole surfaces of two sides of the base layer. If not specifically stated, the other layers occupy the entire area of the sun visor.
The area where the first local glass fiber material layer and the second local glass fiber material layer are located is an area with a high strength requirement of the automobile sun visor, the area can be an independent area, and can also be a set of a plurality of mutually independent areas, and a person skilled in the art can set the area according to actual needs.
According to the invention, the structure of arranging the glass fiber material at the local part replaces the structure of arranging the glass fiber material on the whole surface, so that the overall high-strength performance index of the automobile sun visor is met, the overall weight of the sun visor is effectively reduced, and the cost is reduced.
As a preferable technical scheme of the invention, the surface density of the first partial glass fiber material layer and the second partial glass fiber material layer is 150-200g/m independently2(ii) a For example, it may be 150g/m2、160g/m2、170g/m2、180g/m2、190g/m2Or 200g/m2And the like.
Preferably, the surface density of the first integral glass fiber material layer and the second integral glass fiber material layer is 500-600g/m independently2(ii) a For example, it may be 150g/m2、160g/m2、170g/m2、180g/m2、190g/m2Or 200g/m2And the like.
Preferably, the glass fiber materials of the first local glass fiber material layer, the second local glass fiber material layer, the first integral glass fiber material layer and the second integral glass fiber material layer are glass fiber felts.
In a preferred embodiment of the present invention, the first decorative fabric layer and the second decorative fabric layer are made of a needle-punched non-woven fabric, a knitted fabric, a non-woven fabric, or a printed non-woven fabric.
Preferably, the thickness of the first decorative fabric layer is 2.5-3.5 mm; for example, it may be 2.5mm, 2.6mm, 2.8mm, 2.9mm, 3mm, 3.2mm, 3.3mm, 3.5mm, or the like.
Preferably, the thickness of the second decorative fabric layer is 1-1.5 mm; for example, it may be 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, or the like.
In a preferred embodiment of the present invention, the first non-breathable film layer and the second non-breathable film layer are each independently a PE film or a PE/PA/PE composite film.
Preferably, the first and second non-breathable film layers each independently have a thickness of 0.2-0.3 mm; for example, it may be 0.2mm, 0.22mm, 0.25mm, 0.28mm, 0.3mm, or the like.
In a preferred embodiment of the present invention, the material of the substrate layer is polyurethane.
Preferably, the thickness of the substrate layer is 5.5-7.5 mm; for example, it may be 5.5mm, 5.8mm, 6mm, 6.2mm, 6.5mm, 6.8mm, 7mm, 7.2mm, 7.5mm, or the like.
In a second aspect, the present invention provides a method for manufacturing the sun visor for vehicles according to the first aspect, wherein the method comprises the following steps:
(1) pretreatment:
glue rolling and heating are carried out on the single surface of the glass fiber material, and glue-carrying glass fiber materials used for the first local glass fiber material layer, the second local glass fiber material layer, the first integral glass fiber material layer and the second integral glass fiber material layer are respectively prepared;
spraying softened water on the surface of the base material for softening treatment;
(2) material laying: paving the glued glass fiber material obtained in the step (1), the softened base material, a first decorative fabric layer material, a second decorative fabric layer material, a first non-ventilation film layer material and a second non-ventilation film layer material in sequence, wherein the glued glass fiber material is arranged in a manner that a glue layer faces towards the first decorative fabric layer;
(3) hot-press molding: hot-pressing the composite material obtained in the step (2) in a mould to obtain a semi-finished sun-shading plate;
(4) cooling and shaping: and (4) carrying out vacuum adsorption on the semi-finished sun visor obtained in the step (3), and cooling and shaping to obtain the automobile sun visor.
As a preferred technical scheme of the invention, the glue rolling and heating in the step (1) are carried out in a glue rolling machine.
Preferably, the distance between an upper roller and a lower roller of the rubber rolling machine is 0.1-0.5 mm; for example, it may be 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, or the like.
Preferably, the frequency of a roller motor of the rubber rolling machine is 20-40 Hz; for example, it may be 20Hz, 22Hz, 25Hz, 28Hz, 30Hz, 32Hz, 35Hz, 38Hz, or 40Hz, etc.
Preferably, the heating temperature in the step (1) is 40-50 ℃; for example, the temperature may be 40 ℃, 41 ℃, 42 ℃, 43 ℃, 44 ℃, 45 ℃, 46 ℃, 47 ℃, 48 ℃, 49 ℃ or 50 ℃.
Preferably, the gluing amount of the rolling glue in the step (1) is 30-90 g/m2(ii) a For example, it may be 30g/m2、35g/m2、40g/m2、45g/m2、50g/m2、55g/m2、60g/m2、65g/m2、70g/m2、75g/m2、80g/m2、85g/m2Or 90g/m2And the like.
Preferably, the glue used in the glue rolling in the step (1) is a polyurethane adhesive.
Preferably, the operation of spraying softened water in step (1) is performed in a water softener.
Preferably, the frequency of the motor when the water softener sprays softened water is 40-60 Hz; for example, 40Hz, 42Hz, 45Hz, 48Hz, 50Hz, 52Hz, 55Hz, 58Hz, or 60H, etc.
Preferably, the spraying amount of the softened water in the step (1) is 30-40 g/m2(ii) a For example, it may be 30g/m2、32g/m2、33g/m2、35g/m2、36g/m2、38g/m2Or 40g/m2And the like.
As a preferable embodiment of the present invention, the mold in the step (3) includes an upper mold and a lower mold, and the temperature of the upper mold is 120 to 130 ℃, and may be, for example, 120 ℃, 121 ℃, 122 ℃, 123 ℃, 124 ℃, 125 ℃, 126 ℃, 127 ℃, 128 ℃, 129 ℃ or 130 ℃ or the like; the temperature of the lower mold is 135-145 ℃, for example, 135 ℃, 136 ℃, 137 ℃, 138 ℃, 139 ℃, 140 ℃, 141 ℃, 142 ℃, 143 ℃, 144 ℃ or 145 ℃.
Preferably, the pressure of the hot press molding in the step (3) is 6-15 MPa; for example, it may be 6MPa, 7MPa, 8MPa, 9MPa, 10MPa, 11MPa, 12MPa, 13MPa, 14MPa or 15 MPa.
Preferably, the time for hot press forming in the step (3) is 40-90 s; for example, it may be 40s, 45s, 50s, 55s, 60s, 65s, 70s, 75s, 80s, 85s, or 90 s.
Preferably, the cooling and shaping time in the step (4) is more than or equal to 30 s; for example, it may be 30s, 35s, 40s, 45s, 50s, 55s, 60s, 65s, 70s, 75s, 80s, 85s, 90s, 95s, or 100 s.
Preferably, the vacuum degree of the vacuum adsorption in the step (4) is 0.3-0.7 Mbar; for example, 0.3Mbar, 0.35Mbar, 0.4Mbar, 0.45Mbar, 0.5Mbar, 0.55Mbar, 0.6Mbar, 0.65Mbar, or 0.7Mbar may be used.
As a preferred technical scheme of the invention, the preparation method further comprises the following step (5): and (4) cutting and forming the semi-finished sun visor after cooling and shaping in the step (4) by using a water knife.
Preferably, the water pressure for cutting is 40000-50000 psi, such as 40000psi, 42000psi, 43000psi, 45000psi, 46000psi, 48000psi or 50000 psi; the air pressure is 0.4 to 0.8MPa, and may be, for example, 0.4MPa, 0.45MPa, 0.5MPa, 0.55MPa, 0.6MPa, 0.65MPa, 0.7MPa, 0.75MPa or 0.8 MPa.
As a preferred technical scheme of the invention, the preparation method comprises the following steps:
(1) pretreatment:
glue rolling and heating are carried out on the single surface of the glass fiber material by using a glue rolling machine, the heating temperature is controlled to be 40-50 ℃, the frequency of a roller motor is controlled to be 20-40 Hz, the distance between an upper roller and a lower roller of the glue rolling machine is 0.1-0.5 mm, and the gluing amount is 30-90 g/m2Respectively preparing glass fiber materials with glue for the first local glass fiber material layer, the second local glass fiber material layer, the first integral glass fiber material layer and the second integral glass fiber material layer;
spraying softened water on the surface of the base material, controlling the frequency of a motor to be 40-60 Hz, and controlling the spraying amount of the softened water to be 30-40 g/m2Softening treatment is carried out;
(2) material laying: paving the glued glass fiber material obtained in the step (1), the softened base material, a first decorative fabric layer material, a second decorative fabric layer material, a first non-ventilation film layer material and a second non-ventilation film layer material in sequence, wherein the glued glass fiber material is arranged in a manner that a glue layer faces towards the first decorative fabric layer;
(3) hot-press molding: hot-pressing the composite material obtained in the step (2) in a mold, wherein the mold comprises an upper mold and a lower mold, the temperature of the upper mold is 120-130 ℃, the temperature of the lower mold is 135-145 ℃, the molding pressure is 6-15 MPa, and the molding time is 40-90 s, so that a semi-finished sun visor is obtained;
(4) cooling and shaping: carrying out vacuum adsorption on the semi-finished sun visor obtained in the step (3), and cooling and shaping, wherein the vacuum degree is 0.3-0.7 Mbar, and the cooling and shaping time is more than or equal to 30 s;
(5) cutting and forming: and (4) cutting and forming the semi-finished sun visor after cooling and shaping in the step (4) by using a water knife, wherein the water pressure of the cutting is 40000-50000 psi, and the air pressure is 0.4-0.8 MPa, so as to obtain the automobile sun visor.
Compared with the prior art, the invention has the following beneficial effects:
the automobile sun visor provided by the invention adopts the structure that the glass fiber material is arranged at the local part to replace the structure that the glass fiber material is arranged on the whole surface, so that the integral high-strength performance index of the automobile skylight sun visor can be met, the integral weight of the sun visor can be effectively reduced, and the cost is reduced. The skylight sun shield produced by the glass fiber glue rolling process cannot be broken or sagged; no semi-finished product is accumulated on the way, the number of defective products caused by insufficient rigidity is reduced, and the manufacturing cost is saved; no harmful substances are generated in the whole production process of the product.
Drawings
Fig. 1 is a schematic structural view of an automobile sunroof sun visor according to an embodiment of the present invention;
wherein, 1 is the first surface fabric layer of decorating, 2 is the first non-membrane layer of ventilating, 3 is the first local glass fiber material layer, 4 is the first whole glass fiber material layer, 5 is the base member layer, 6 is the second whole glass fiber material layer, 7 is the local glass fiber material layer of second, 8 is the second non-membrane layer of ventilating, 9 is the second and decorates the surface fabric layer.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings. It should be understood by those skilled in the art that the specific embodiments are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
Example 1
The embodiment provides an automobile skylight sun shield, as shown in fig. 1, which includes a first decorative fabric layer 1, a first non-ventilation film layer 2, a first local glass fiber material layer 3, a first integral glass fiber material layer 4, a base layer 5, a second integral glass fiber material layer 6, a second local glass fiber material layer 7, a second non-ventilation film layer 8 and a second decorative fabric layer 9, which are sequentially stacked;
the first partial fiberglass material layer, the first integral fiberglass material layer, the substrate layer, the second integral fiberglass material layer and the second partial fiberglass material layer are bonded through an adhesive (the adhesive layer is not shown in fig. 1).
The preparation method of the automobile skylight sun shield comprises the following steps:
(1) pretreatment:
the glass fiber material (glass fiber felt) is subjected to single-side glue rolling (Pasteur 1974 glue) and heating by a glue rolling machine, the heating temperature is controlled to be 40 ℃, the frequency of a roller motor is controlled to be 20Hz, the distance between an upper roller and a lower roller of the glue rolling machine is 0.3mm, and the glue applying amount is 60g/m2Separately prepared for a first partial ply of glassfibre material 3 (areal density 150 g/m)2) A second partial glass fiber material layer 7 (the surface density is 150 g/m)2) A first integral glass fiber material layer 4 (the surface density is 500 g/m)2) And a second integral glass fiber material layer 6 (with the surface density of 500 g/m)2) The glass fiber material with glue;
spraying softened water on the surface of a substrate (low-density PU foam molding material with the thickness of 6mm) by using a water softening machine, controlling the frequency of a motor to be 40Hz, and spraying the softened water with the amount of 30g/m2Softening treatment is carried out;
(2) material laying: paving the glued glass fiber material obtained in the step (1), the softened base material, a first decorative shell fabric layer material (printed non-woven fabric with the thickness of 2.5mm), a second decorative shell fabric layer material (non-woven fabric with the thickness of 1mm), a first non-breathable film layer material (PE film with the thickness of 0.2mm) and a second non-breathable film layer material (PE film with the thickness of 0.2mm) in sequence, wherein the glued glass fiber material is arranged such that a glue layer faces the first decorative shell fabric layer;
(3) hot-press molding: hot-pressing the composite material obtained in the step (2) in a mould, wherein the mould comprises an upper mould and a lower mould, the temperature of the upper mould is 120 ℃, the temperature of the lower mould is 145 ℃, the forming pressure is 6.5MPa, and the forming time is 60s, so that a semi-finished sun visor is obtained;
(4) cooling and shaping: carrying out vacuum adsorption on the semi-finished sun visor obtained in the step (3), and cooling and shaping, wherein the vacuum degree is 0.6Mbar, and the cooling and shaping time is 40 s;
(5) cutting and forming: cutting the semi-finished sun visor in the step (4) into shape (specification: 946mm x 472mm) by a water knife, wherein the water pressure of the cutting is 40000psi, and the air pressure is 0.8MPa, so as to obtain the automobile sun visor;
(6) and (4) checking: whether the surface of the sun shield of the automobile skylight is flat or not is detected, and the defects of no damage, breakage, corrugation, concave-convex base material, air bubbles, glue marks or uneven color tone exist; the surface is smooth, and the product without the defects is a qualified product;
(7) boxing and warehousing: the automobile skylight sun shield is boxed according to the packaging technical standard and is warehoused according to 30 pcs/box.
The sunroof sun visor that this embodiment provided has adopted and has set up the structure of the glass fiber material at the local structure that sets up the glass fiber material of replacing setting up in the whole face, and it can satisfy the holistic high strength performance index of sunroof sun visor, can effectively reduce the whole weight of sun visor again, reduce cost. The skylight sun shield produced by the glass fiber glue rolling process cannot be broken or sagged; no semi-finished product is accumulated on the way, the number of defective products caused by insufficient rigidity is reduced, and the manufacturing cost is saved; no harmful substances are generated in the whole production process of the product.
Example 2
The embodiment provides an automobile skylight sun shield, as shown in fig. 1, which includes a first decorative fabric layer 1, a first non-ventilation film layer 2, a first local glass fiber material layer 3, a first integral glass fiber material layer 4, a base layer 5, a second integral glass fiber material layer 6, a second local glass fiber material layer 7, a second non-ventilation film layer 8 and a second decorative fabric layer 9, which are sequentially stacked;
the first partial fiberglass material layer, the first integral fiberglass material layer, the substrate layer, the second integral fiberglass material layer and the second partial fiberglass material layer are bonded through an adhesive (the adhesive layer is not shown in fig. 1).
The preparation method of the automobile skylight sun shield comprises the following steps:
(1) pretreatment:
the glass fiber material (glass fiber felt) is subjected to single-side glue rolling (Pasteur 1974 glue) and heating by a glue rolling machine, the heating temperature is controlled to be 50 ℃, the frequency of a roller motor is controlled to be 30Hz, the distance between an upper roller and a lower roller of the glue rolling machine is 0.5mm, and the gluing amount is 90g/m2Separately prepared for a first partial ply of glassfibre material 3 (areal density of 200 g/m)2) A second partial glass fiber material layer 7 (the surface density is 200 g/m)2) A first integral glass fiber material layer 4 (the surface density is 600 g/m)2) And a second integral glass fiber material layer 6 (with the surface density of 600 g/m)2) The glass fiber material with glue;
spraying softened water on the surface of a substrate (low-density PU foam molding material with the thickness of 7.5mm) by using a water softening machine, controlling the frequency of a motor to be 60Hz, and spraying the softened water with the amount of 40g/m2Softening treatment is carried out;
(2) material laying: paving the glued glass fiber material obtained in the step (1), the softened base material, a first decorative shell fabric layer material (a needle-punched non-woven fabric with the thickness of 3.5mm), a second decorative shell fabric layer material (a non-woven fabric with the thickness of 1.5mm), a first non-breathable membrane layer material (a PE/PA/PE composite membrane with the thickness of 0.3mm) and a second non-breathable membrane layer material (a PE/PA/PE composite membrane with the thickness of 0.3mm) in sequence, wherein the glued glass fiber material is arranged such that a glue layer faces the first decorative shell fabric layer;
(3) hot-press molding: hot-pressing the composite material obtained in the step (2) in a mould, wherein the mould comprises an upper mould and a lower mould, the temperature of the upper mould is 130 ℃, the temperature of the lower mould is 140 ℃, the forming pressure is 15MPa, and the forming time is 40s, so that a semi-finished sun visor is obtained;
(4) cooling and shaping: carrying out vacuum adsorption on the semi-finished sun visor obtained in the step (3), and cooling and shaping, wherein the vacuum degree is 0.7Mbar, and the cooling and shaping time is 60 s;
(5) cutting and forming: cutting the semi-finished sun visor in the step (4) into shape (with the specification of 913mm multiplied by 612mm) by a water knife, wherein the water pressure of the cutting is 50000psi, and the air pressure is 0.4MPa, so as to obtain the automobile sun visor;
(6) and (4) checking: whether the surface of the sun shield of the automobile skylight is flat or not is detected, and the defects of no damage, breakage, corrugation, concave-convex base material, air bubbles, glue marks or uneven color tone exist; the surface is smooth, and the product without the defects is a qualified product;
(7) boxing and warehousing: the automobile skylight sun shield is boxed according to the packaging technical standard and is warehoused according to 30 pcs/box.
The sunroof sun visor that this embodiment provided has adopted and has set up the structure of the glass fiber material at the local structure that sets up the glass fiber material of replacing setting up in the whole face, and it can satisfy the holistic high strength performance index of sunroof sun visor, can effectively reduce the whole weight of sun visor again, reduce cost. The skylight sun shield produced by the glass fiber glue rolling process cannot be broken or sagged; no semi-finished product is accumulated on the way, the number of defective products caused by insufficient rigidity is reduced, and the manufacturing cost is saved; no harmful substances are generated in the whole production process of the product.
Example 3
The embodiment provides an automobile skylight sun shield, as shown in fig. 1, which includes a first decorative fabric layer 1, a first non-ventilation film layer 2, a first local glass fiber material layer 3, a first integral glass fiber material layer 4, a base layer 5, a second integral glass fiber material layer 6, a second local glass fiber material layer 7, a second non-ventilation film layer 8 and a second decorative fabric layer 9, which are sequentially stacked;
the first partial fiberglass material layer, the first integral fiberglass material layer, the substrate layer, the second integral fiberglass material layer and the second partial fiberglass material layer are bonded through an adhesive (the adhesive layer is not shown in fig. 1).
The preparation method of the automobile skylight sun shield comprises the following steps:
(1) pretreatment:
using a glue rolling machine to roll glue (Pasteur 1974 glue) on the single surface of a glass fiber material (glass fiber felt) and heat, controlling the heating temperature to be 45 ℃ and the frequency of a roller motor to be 40Hz, the distance between the upper roller and the lower roller of the glue rolling machine is 0.1mm, and the glue applying amount is 30g/m2Separately prepared for a first partial ply of glassfibre material 3 (areal density of 180 g/m)2) A second partial glass fiber material layer 7 (the surface density is 180 g/m)2) A first integral glass fiber material layer 4 (the surface density is 550 g/m)2) And a second integral glass fiber material layer 6 (the surface density is 550 g/m)2) The glass fiber material with glue;
spraying softened water on the surface of a substrate (low-density PU foam molding material with the thickness of 5.5mm) by using a water softening machine, controlling the frequency of a motor to be 50Hz, and spraying the softened water with the amount of 35g/m2Softening treatment is carried out;
(2) material laying: paving the glued glass fiber material obtained in the step (1), the softened base material, a first decorative fabric layer material (knitted fabric with the thickness of 3mm), a second decorative fabric layer material (non-woven fabric with the thickness of 1.3mm), a first non-breathable film layer material (PE/PA/PE composite film with the thickness of 0.25mm) and a second non-breathable film layer material (PE/PA/PE composite film with the thickness of 0.25mm) in sequence, wherein the glued glass fiber material is arranged such that a glue layer faces the first decorative fabric layer;
(3) hot-press molding: hot-pressing the composite material obtained in the step (2) in a mould, wherein the mould comprises an upper mould and a lower mould, the temperature of the upper mould is 125 ℃, the temperature of the lower mould is 135 ℃, the forming pressure is 10MPa, and the forming time is 90s, so that a semi-finished sun visor is obtained;
(4) cooling and shaping: carrying out vacuum adsorption on the semi-finished sun visor obtained in the step (3), and cooling and shaping, wherein the vacuum degree is 0.3Mbar, and the cooling and shaping time is 30 s;
(5) cutting and forming: cutting the semi-finished sun visor in the step (4) into shape (the specification is 913mm multiplied by 612mm) by a water knife, wherein the water pressure of the cutting is 45000psi, and the air pressure is 0.6MPa, so as to obtain the automobile sun visor;
(6) and (4) checking: whether the surface of the sun shield of the automobile skylight is flat or not is detected, and the defects of no damage, breakage, corrugation, concave-convex base material, air bubbles, glue marks or uneven color tone exist; the surface is smooth, and the product without the defects is a qualified product;
(7) boxing and warehousing: the automobile skylight sun shield is boxed according to the packaging technical standard and is warehoused according to 30 pcs/box.
The sunroof sun visor that this embodiment provided has adopted and has set up the structure of the glass fiber material at the local structure that sets up the glass fiber material of replacing setting up in the whole face, and it can satisfy the holistic high strength performance index of sunroof sun visor, can effectively reduce the whole weight of sun visor again, reduce cost. The skylight sun shield produced by the glass fiber glue rolling process cannot be broken or sagged; no semi-finished product is accumulated on the way, the number of defective products caused by insufficient rigidity is reduced, and the manufacturing cost is saved; no harmful substances are generated in the whole production process of the product.
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.
Claims (10)
1. The automobile sun visor is characterized by comprising a first decorative fabric layer, a first non-ventilation film layer, a first local glass fiber material layer, a first integral glass fiber material layer, a base layer, a second integral glass fiber material layer, a second local glass fiber material layer, a second non-ventilation film layer and a second decorative fabric layer which are sequentially stacked;
the first local glass fiber material layer, the first integral glass fiber material layer, the base layer, the second integral glass fiber material layer and the second local glass fiber material layer are bonded through an adhesive.
2. The sun visor according to claim 1, wherein the first partial fiberglass material layer and the second partial fiberglass material layer each independently have an areal density of 150-200g/m2；
Preferably, the surface density of the first integral glass fiber material layer and the second integral glass fiber material layer is 500-600g/m independently2；
Preferably, the glass fiber materials of the first local glass fiber material layer, the second local glass fiber material layer, the first integral glass fiber material layer and the second integral glass fiber material layer are glass fiber felts.
3. The sun visor according to claim 1 or 2, wherein the material of the first decorative fabric layer and the second decorative fabric layer is each independently a needle-punched non-woven fabric, a knitted fabric, a non-woven fabric, or a printed non-woven fabric;
preferably, the thickness of the first decorative fabric layer is 2.5-3.5 mm;
preferably, the thickness of the second decorative fabric layer is 1-1.5 mm.
4. The automotive sun visor according to any one of claims 1 to 3, wherein the material of the first non-breathable film layer and the second non-breathable film layer is each independently a PE film or a PE/PA/PE composite film;
preferably, the first non-breathable film layer and the second non-breathable film layer each independently have a thickness of 0.2-0.3 mm.
5. The sun visor according to any one of claims 1 to 4, wherein the material of the substrate layer is polyurethane;
preferably, the thickness of the matrix layer is 5.5-7.5 mm.
6. A method for manufacturing a sun visor for vehicles according to any one of claims 1 to 5, comprising the steps of:
(1) pretreatment:
glue rolling and heating are carried out on the single surface of the glass fiber material, and glue-carrying glass fiber materials used for the first local glass fiber material layer, the second local glass fiber material layer, the first integral glass fiber material layer and the second integral glass fiber material layer are respectively prepared;
spraying softened water on the surface of the base material for softening treatment;
(2) material laying: paving the glued glass fiber material obtained in the step (1), the softened base material, a first decorative fabric layer material, a second decorative fabric layer material, a first non-ventilation film layer material and a second non-ventilation film layer material in sequence, wherein the glued glass fiber material is arranged in a manner that a glue layer faces towards the first decorative fabric layer;
(3) hot-press molding: hot-pressing the composite material obtained in the step (2) in a mould to obtain a semi-finished sun-shading plate;
(4) cooling and shaping: and (4) carrying out vacuum adsorption on the semi-finished sun visor obtained in the step (3), and cooling and shaping to obtain the automobile sun visor.
7. The production method according to claim 6, wherein the rolling and heating in step (1) are carried out in a roll mill;
preferably, the distance between an upper roller and a lower roller of the rubber rolling machine is 0.1-0.5 mm;
preferably, the frequency of a roller motor of the rubber rolling machine is 20-40 Hz;
preferably, the heating temperature in the step (1) is 40-50 ℃;
preferably, the gluing amount of the rolling glue in the step (1) is 30-90 g/m2；
Preferably, the glue used for the glue rolling in the step (1) is a polyurethane adhesive;
preferably, the operation of spraying softened water in the step (1) is carried out in a water softening machine;
preferably, the frequency of the motor when the water softener sprays softened water is 40-60 Hz;
preferably, the spraying amount of the softened water in the step (1) is 30-40 g/m2。
8. The preparation method according to claim 6 or 7, wherein the mold in the step (3) comprises an upper mold and a lower mold, the temperature of the upper mold is 120-130 ℃, and the temperature of the lower mold is 135-145 ℃;
preferably, the pressure of the hot press molding in the step (3) is 6-15 MPa;
preferably, the time for hot press forming in the step (3) is 40-90 s;
preferably, the cooling and shaping time in the step (4) is more than or equal to 30 s;
preferably, the vacuum degree of the vacuum adsorption in the step (4) is 0.3-0.7 Mbar.
9. The production method according to any one of claims 6 to 8, characterized by further comprising step (5): cutting and forming the semi-finished sun visor in the step (4) by using a water knife;
preferably, the water pressure of the cutting is 40000-50000 psi, and the air pressure is 0.4-0.8 MPa.
10. The method according to any one of claims 6 to 9, characterized by comprising the steps of:
(1) pretreatment:
glue rolling and heating are carried out on the single surface of the glass fiber material by using a glue rolling machine, the heating temperature is controlled to be 40-50 ℃, the frequency of a roller motor is controlled to be 20-40 Hz, the distance between an upper roller and a lower roller of the glue rolling machine is 0.1-0.5 mm, and the gluing amount is 30-90 g/m2Respectively preparing glass fiber materials with glue for the first local glass fiber material layer, the second local glass fiber material layer, the first integral glass fiber material layer and the second integral glass fiber material layer;
spraying softened water on the surface of the base material, controlling the frequency of a motor to be 40-60 Hz, and controlling the spraying amount of the softened water to be 30-40 g/m2Softening treatment is carried out;
(2) material laying: paving the glued glass fiber material obtained in the step (1), the softened base material, a first decorative fabric layer material, a second decorative fabric layer material, a first non-ventilation film layer material and a second non-ventilation film layer material in sequence, wherein the glued glass fiber material is arranged in a manner that a glue layer faces towards the first decorative fabric layer;
(3) hot-press molding: hot-pressing the composite material obtained in the step (2) in a mold, wherein the mold comprises an upper mold and a lower mold, the temperature of the upper mold is 120-130 ℃, the temperature of the lower mold is 135-145 ℃, the molding pressure is 6-15 MPa, and the molding time is 40-90 s, so that a semi-finished sun visor is obtained;
(4) cooling and shaping: carrying out vacuum adsorption on the semi-finished sun visor obtained in the step (3), and cooling and shaping, wherein the vacuum degree is 0.3-0.7 Mbar, and the cooling and shaping time is more than or equal to 30 s;
(5) cutting and forming: and (4) cutting and forming the semi-finished sun visor after cooling and shaping in the step (4) by using a water knife, wherein the water pressure of the cutting is 40000-50000 psi, and the air pressure is 0.4-0.8 MPa, so as to obtain the automobile sun visor.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112590101A (en) * | 2020-12-02 | 2021-04-02 | 宁波耀众模塑科技有限公司 | Production process of low-temperature automobile sun shield |
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