CN114368192A - Automobile skylight pulling plate and manufacturing method thereof - Google Patents
Automobile skylight pulling plate and manufacturing method thereof Download PDFInfo
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- CN114368192A CN114368192A CN202210033220.9A CN202210033220A CN114368192A CN 114368192 A CN114368192 A CN 114368192A CN 202210033220 A CN202210033220 A CN 202210033220A CN 114368192 A CN114368192 A CN 114368192A
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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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
- B29C65/522—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by spraying, e.g. by flame spraying
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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
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
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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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
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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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
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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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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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
- B32B5/18—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 features of a layer of foamed material
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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
- B60J7/02—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes
- B60J7/04—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes with rigid plate-like element or elements, e.g. open roofs with harmonica-type folding rigid panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
- B29C2045/0058—Shaping removing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C2045/0096—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor drying the moulding material before injection, e.g. by heating
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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
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0278—Polyurethane
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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
- B32B2605/00—Vehicles
- B32B2605/08—Cars
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Textile Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to an automobile skylight pulling plate and a manufacturing method thereof, wherein the automobile skylight pulling plate is formed by integrally injection molding a surface layer, a base material plate layer and a non-woven fabric bottom layer which are sequentially superposed into a plastic skylight pulling plate, the surface layer comprises a PET (polyethylene terephthalate) surface material layer, a polyurethane foam middle layer and a second non-woven fabric bottom layer which are sequentially superposed, and the PET surface material layer, the polyurethane foam middle layer and the second non-woven fabric bottom layer are compounded through hot melting to form a surface layer. The automobile skylight pulling plate and the manufacturing method thereof have reasonable design, and are beneficial to reducing the weight of the automobile skylight and reducing the generation of pollutants and harmful gases.
Description
The technical field is as follows:
the invention relates to an automobile skylight pulling plate and a manufacturing method thereof.
Background art:
along with the rapid development of economy in China, the living standard of people is improved, the requirements of people on the performance of automobiles are higher and higher, and the weight reduction of the automobiles and the environment of riding in the automobiles are difficult to overcome by various automobile host factories; the automobile skylight pulling plate is taken as an indispensable important part in an automobile assembly, two processes of wet forming and dry forming are adopted at present, materials such as polyurethane, glass fiber and the like are required to be used for baking and other processing, a large amount of harmful gas and glass fiber scraps are generated in the production process, even if production personnel carry out various protection measures, occupational diseases can be caused, and the product can carry harmful gas and harmful substances which can affect the body, so that the body health of passengers in the automobile is affected.
The invention content is as follows:
the invention aims to provide an automobile skylight pulling plate and a manufacturing method thereof.
The invention relates to an automobile skylight pulling plate, which is characterized in that: the plastic skylight pulling plate is formed by integrally injection molding a surface layer, a base material plate layer and a non-woven fabric bottom layer which are sequentially superposed.
Further, the surface layer comprises a PET fabric layer, a polyurethane foam middle layer and a second non-woven fabric bottom layer which are sequentially overlapped.
Further, the PET fabric layer, the polyurethane foam middle layer and the second non-woven fabric bottom layer are compounded through hot melting to form a surface layer.
Further, the substrate sheet layer is synthesized from polypropylene, acrylonitrile, butadiene and styrene.
Furthermore, the surface layer and the non-woven fabric bottom layer are respectively preset in an upper die and a lower die of an injection die, and composite engineering plastics of the base material plate layer are injected into a die cavity after the upper die and the lower die are closed, so that the plastic skylight pulling plate is formed by overlapping and injection molding.
The invention discloses a manufacturing method of an automobile skylight pulling plate, which is characterized by comprising the following steps:
the method comprises the following steps: cutting the surface layer and the non-woven fabric bottom layer into required size specifications;
step two: placing the composite engineering plastic synthesized by polypropylene, acrylonitrile, butadiene and styrene into an oven, wherein the baking temperature is 100-140 ℃, and the baking time is 5-7H, and preparing for injection molding production;
step three: fixing the surface layer in an upper die cavity of an injection mold through a manual or a robot; the non-woven fabric bottom layer is fixed in the lower die cavity through the same operation;
step four: adding the baked composite engineering plastic into an injection molding machine for heating and plasticizing; the plasticizing pressure is 100-150bar, and the temperature is 220-280 ℃;
step five: setting a specified process parameter digital temperature: 40-60 ℃, material temperature: 200 ℃ and 240 ℃, and maintaining the pressure: 12-18S, the tonnage of the injection molding machine is 1000T, and the molten composite engineering plastic is injected into the injection mold under the pressure of 40-80bar to be molded into the plastic skylight pulling plate by injection molding.
Step six after step five: placing the plastic skylight pulling plate which is subjected to injection molding in a positioning jig, fixing the plastic skylight pulling plate by using a pneumatic pressing clamp, and trimming the edge by hand or a robot;
step seven: spraying glue on the trimmed plastic skylight pulling plate at a turn-up position by using an automatic glue spraying robot, and performing manual or robot turn-up operation;
step eight: the plastic skylight pulling plate which is well wrapped reversely is hot-pressed by an automatic reverse wrapping machine, and the temperature of the reverse wrapping is as follows: 135 ℃ and 150 ℃, the reverse packing time is 5-8S, and the reverse packing pressure is as follows: 100-150 bar;
step nine: and (4) confirming the hot-pressed plastic skylight pulling plate after the overhaul, and packing and storing the plastic skylight pulling plate by using a PE plastic film after confirming OK.
Further, in the second step, the baking temperature is 120 +/-5 ℃, and the baking time is 6H.
Furthermore, in the fourth step, the plasticizing pressure is 120 +/-10 bar, and the temperature is 250 +/-10 ℃.
Further, in the fifth step, the mold temperature is 50 +/-10 ℃, the material temperature is 220 +/-10 ℃, the pressure is maintained for 15S, and the composite engineering plastic in a molten state is injected into the injection mold at the pressure of 60 +/-10 bar.
After adopting the structure, compared with the prior art, the skylight pulling plate structure has the following advantages:
the skylight pulling plate structure only comprises the surface layer, the non-woven fabric bottom layer and the base material plate layer, and the surface layer, the non-woven fabric bottom layer and the base material plate layer are manufactured through injection molding, so that compared with the traditional skylight pulling plate, the skylight pulling plate structure is simpler and more convenient in working procedure in a mode that multiple layers of materials such as fabric, non-woven fabric, PU foam, glass fiber and the like are compounded and pressed through glue, the use of glue is greatly reduced, the environmental pollution is reduced, and the requirements of VOC, smell and the like of a host factory are met; in addition, the main structure body of the skylight pulling plate is a base material plate layer made of composite engineering plastics, and the overall thickness of the skylight pulling plate can be reduced on the premise of meeting the strength performance, so that the effect of saving space can be achieved; the simple and convenient injection molding production process can effectively improve the production efficiency and reduce the fraction defective of finished products, thereby saving the cost and the production working hours.
In addition, the lap joint of the traditional skylight pulling plate and the automobile skylight frame is used for installing the plastic skylight pulling plate sliding block on the skylight pulling plate to achieve the purpose of sliding the skylight pulling plate, the integral injection molding plastic skylight pulling plate can be directly used for designing the skylight pulling plate sliding block 7 structure at the left side edge and the right side edge of the skylight pulling plate, the cost of parts of the skylight pulling plate side sliding block can be saved, the working hour for installing the skylight pulling plate sliding block can be saved, the reject ratio generated when the skylight pulling plate sliding block is installed can be reduced, the compression cost is achieved, and the production efficiency is improved.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to specific embodiments and accompanying drawings.
Description of the drawings:
FIG. 1 is a schematic perspective view of a sunroof pulling plate according to the present invention;
FIG. 2 is a schematic cross-sectional view of the sunroof pulling plate according to the present invention;
FIG. 3 is a schematic view of a skylight pull plate automatic glue spraying robot workbench;
FIG. 4 is a schematic view of the construction of the inner surface layer or the nonwoven fabric bottom layer hanging material of the injection mold cavity;
FIG. 5 is a schematic perspective view of the sunroof pulling plate of the present invention in a positioning fixture;
FIG. 6 is a schematic structural view of the sunroof pulling plate of the present invention, in which a slider is directly disposed;
fig. 7 is a schematic cross-sectional configuration of a facing layer.
The specific implementation mode is as follows:
the automobile skylight pulling plate is formed by integrally injection-molding a surface layer 2, a base material plate layer 3 and a non-woven fabric bottom layer 4 which are sequentially superposed into a plastic skylight pulling plate 1, wherein the surface layer 2 comprises a PET fabric layer 201, a polyurethane foam middle layer 202 and a second non-woven fabric bottom layer 203 which are sequentially superposed, and the PET fabric layer 201, the polyurethane foam middle layer 202 and the second non-woven fabric bottom layer 203 are compounded through hot melting to form the surface layer 2.
The base material plate layer is made of polypropylene, acrylonitrile, butadiene and styrene to synthesize composite engineering plastics.
Compared with the prior skylight pull plate product which is formed by bonding and combining material layers such as fabric, glass fiber, PU foam, non-woven fabric, polyurethane and the like, the plastic skylight pull plate is produced by integrally injection molding the surface layer, the non-woven fabric bottom layer and the composite engineering plastic, the weight is reduced by about 30 percent, the production process is greatly simplified, pollutants and harmful gases can be reduced, the risk of occupational diseases of workers is reduced, and the skylight pull plate product produced by the new process meets various performance requirements of the prior skylight pull plate product.
When the plastic skylight pulling plate is manufactured, the surface layer 2 and the non-woven fabric bottom layer 4 are respectively preset in an upper die and a lower die of an injection die, and composite engineering plastics of a base material plate layer are injected into a die cavity after the upper die and the lower die are closed, so that the plastic skylight pulling plate is formed by overlapping and injection molding.
The manufacturing method of the automobile skylight pulling plate comprises the following steps:
the method comprises the following steps: cutting the surface layer and the non-woven fabric bottom layer into required size specifications;
step two: placing the composite engineering plastic synthesized by polypropylene, acrylonitrile, butadiene and styrene into an oven, wherein the baking temperature is 100-140 ℃, and the baking time is 5-7H, and preparing for injection molding production;
step three: fixing the surface layer in an upper mold cavity of the injection mold 8 through a manual or a robot; the non-woven fabric bottom layer is fixed in the lower die cavity through the same operation;
step four: adding the baked composite engineering plastic into an injection molding machine for heating and plasticizing; the plasticizing pressure is 100-150bar, and the temperature is 220-280 ℃;
step five: setting a specified process parameter digital temperature: 40-60 ℃, material temperature: 200 ℃ and 240 ℃, and maintaining the pressure: 12-18S, the tonnage of the injection molding machine is 1000T, and the molten composite engineering plastic is injected into the injection mold under the pressure of 40-80bar to be molded into the plastic skylight pulling plate by injection molding.
Step six after step five: placing the plastic skylight pulling plate which is subjected to injection molding in a positioning jig 6, fixing the plastic skylight pulling plate by using a pneumatic pressing clamp, and trimming the edge by hand or a robot;
step seven: the trimmed plastic skylight pulling plate is subjected to glue spraying operation at a turn-up position by using an automatic glue spraying robot 5, and manual or robot turn-up operation is carried out;
step eight: place the good plastics skylight arm-tie of anti-package in automatic anti-chartered plane, in the heating profile modeling piece lower module of skylight arm-tie is aimed at to the anti-package department that plastics skylight arm-tie front end needs, start automatic anti-chartered plane, the module descends on the heating profile modeling piece of skylight arm-tie and carries out the anti-package action of hot pressing to ensure that anti-package department surface fabric is firm, do not drop, anti-package temperature: 135 ℃ and 150 ℃, the reverse packing time is 5-8S, and the reverse packing pressure is as follows: 100-150 bar.
Step nine: and (4) confirming the hot-pressed plastic skylight pulling plate after the overhaul, and packing and storing the plastic skylight pulling plate by using a PE plastic film after confirming OK.
In the second step, the baking temperature is preferably 120 +/-5 ℃, and the baking time is preferably 6H.
The plasticizing pressure in the fourth step is preferably 120 + -10 bar, and the temperature is preferably 250 + -10 ℃.
And (5) in the fifth step, the mold temperature is preferably 50 +/-10 ℃, the material temperature is preferably 220 +/-10 ℃, the pressure is preferably maintained for 15S, and the composite engineering plastic in a molten state is injected into the injection mold at a pressure of preferably 60 +/-10 bar.
Example 1 of the manufacturing method of the sunroof pulling plate:
cutting the surface layer and the non-woven fabric bottom layer into required size specifications; placing the composite engineering plastic synthesized by polypropylene, acrylonitrile, butadiene and styrene into an oven, and baking at 100 ℃ for 5H to prepare injection molding production; fixing the surface layer in an upper die cavity of an injection mold through a manual or a robot; the non-woven fabric bottom layer is fixed in the lower die cavity through the same operation; adding the baked composite engineering plastic into an injection molding machine for heating and plasticizing; the plasticizing pressure is 100bar and the temperature is 220 ℃; setting a specified process parameter digital temperature: 40 ℃, material temperature: and (3) maintaining the pressure at 200 ℃: 12S, injecting composite engineering plastics in a molten state into an injection mold at the pressure of 40bar by the injection molding machine with the tonnage of 1000T to perform injection molding to form a plastic skylight pulling plate; placing the plastic skylight pulling plate which is subjected to injection molding in a positioning jig, fixing the plastic skylight pulling plate by using a pneumatic pressing clamp, and trimming the edge by hand or a robot; spraying glue on the trimmed plastic skylight pulling plate at a turn-up position by using an automatic glue spraying robot, and performing manual or robot turn-up operation; the plastic skylight pulling plate which is well wrapped reversely is hot-pressed by an automatic reverse wrapping machine, and the temperature of the reverse wrapping is as follows: 135 ℃, turn-up time 5S, turn-up pressure: 100 bar; step nine: and (4) confirming the hot-pressed plastic skylight pulling plate after the overhaul, and packing and storing the plastic skylight pulling plate by using a PE plastic film after confirming OK.
Example 2 of the manufacturing method of the sunroof pulling plate:
cutting the surface layer and the non-woven fabric bottom layer into required size specifications; placing the composite engineering plastic synthesized by polypropylene, acrylonitrile, butadiene and styrene into an oven, and baking at 140 ℃ for 7H to prepare injection molding production; fixing the surface layer in an upper die cavity of an injection mold through a manual or a robot; the non-woven fabric bottom layer is fixed in the lower die cavity through the same operation; adding the baked composite engineering plastic into an injection molding machine for heating and plasticizing; the plasticizing pressure is 150bar and the temperature is 280 ℃; setting a specified process parameter digital temperature: 60 ℃, material temperature: and (3) maintaining the pressure at 240 ℃: 18S, injecting composite engineering plastics in a molten state into an injection mold at the pressure of 80bar by the injection molding machine with the tonnage of 1000T, and performing injection molding to obtain a plastic skylight pulling plate; placing the plastic skylight pulling plate which is subjected to injection molding in a positioning jig, fixing the plastic skylight pulling plate by using a pneumatic pressing clamp, and trimming the edge by hand or a robot; spraying glue on the trimmed plastic skylight pulling plate at a turn-up position by using an automatic glue spraying robot, and performing manual or robot turn-up operation; the plastic skylight pulling plate which is well wrapped reversely is hot-pressed by an automatic reverse wrapping machine, and the temperature of the reverse wrapping is as follows: 150 ℃, turn-up time 8S, turn-up pressure: 150 bar; and (4) confirming the hot-pressed plastic skylight pulling plate after the overhaul, and packing and storing the plastic skylight pulling plate by using a PE plastic film after confirming OK.
Example 3 of the manufacturing method of the sunroof pulling plate:
cutting the surface layer and the non-woven fabric bottom layer into required size specifications; placing the composite engineering plastic synthesized by polypropylene, acrylonitrile, butadiene and styrene into an oven, and baking at 120 ℃ for 6H to prepare injection molding production; fixing the surface layer in an upper die cavity of an injection mold through a manual or a robot; the non-woven fabric bottom layer is fixed in the lower die cavity through the same operation; adding the baked composite engineering plastic into an injection molding machine for heating and plasticizing; the plasticizing pressure is 120bar, and the temperature is 250 ℃; setting a specified process parameter digital temperature: 50 ℃, material temperature: and (3) maintaining the pressure at 220 ℃: 15S, injecting composite engineering plastics in a molten state into an injection mold at the pressure of 60bar by the injection molding machine with the tonnage of 1000T, and performing injection molding to obtain a plastic skylight pulling plate; step six after step five: placing the plastic skylight pulling plate which is subjected to injection molding in a positioning jig, fixing the plastic skylight pulling plate by using a pneumatic pressing clamp, and trimming the edge by hand or a robot; spraying glue on the trimmed plastic skylight pulling plate at a turn-up position by using an automatic glue spraying robot, and performing manual or robot turn-up operation; the plastic skylight pulling plate which is well wrapped reversely is hot-pressed by an automatic reverse wrapping machine, and the temperature of the reverse wrapping is as follows: 140 ℃, turn-up time 6S, turn-up pressure: 120 bar; and (4) confirming the hot-pressed plastic skylight pulling plate after the overhaul, and packing and storing the plastic skylight pulling plate by using a PE plastic film after confirming OK.
Compared with the prior skylight pull plate product which is formed by bonding and combining material layers such as fabric, glass fiber, PU foam, non-woven fabric, polyurethane and the like, the plastic skylight pull plate is produced by integrally injection molding the surface layer, the non-woven fabric bottom layer and the composite engineering plastic, the weight is reduced by about 30 percent, the production process is greatly simplified, pollutants and harmful gases can be reduced, the risk of occupational diseases of workers is reduced, and the skylight pull plate product produced by the new process meets various performance requirements of the prior skylight pull plate product.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides an automobile skylight arm-tie which characterized in that: the plastic skylight pulling plate is formed by integrally injection molding a surface layer, a base material plate layer and a non-woven fabric bottom layer which are sequentially superposed.
2. The sunroof pulling plate according to claim 1, wherein: the surface layer comprises a PET fabric layer, a polyurethane foam middle layer and a second non-woven fabric bottom layer which are sequentially overlapped.
3. The sunroof pulling plate according to claim 2, wherein: the PET fabric layer, the polyurethane foam middle layer and the second non-woven fabric bottom layer are compounded through hot melting to form a surface layer.
4. The sunroof pulling plate according to claim 3, wherein: the substrate plate layer is synthesized by polypropylene, acrylonitrile, butadiene and styrene.
5. The sunroof pulling plate according to claim 4, wherein: the surface layer and the non-woven fabric bottom layer are respectively preset in an upper die and a lower die of an injection die, and composite engineering plastics of the base material plate layer are injected into a die cavity after the upper die and the lower die are closed, so that the plastic skylight pulling plate is formed by overlapping and injection molding.
6. A manufacturing method of an automobile skylight pulling plate is characterized by comprising the following steps:
the method comprises the following steps: cutting the surface layer and the non-woven fabric bottom layer into required size specifications;
step two: placing the composite engineering plastic synthesized by polypropylene, acrylonitrile, butadiene and styrene into an oven, wherein the baking temperature is 100-140 ℃, and the baking time is 5-7H, and preparing for injection molding production;
step three: fixing the surface layer in an upper die cavity of an injection mold through a manual or a robot; the non-woven fabric bottom layer is fixed in the lower die cavity through the same operation;
step four: adding the baked composite engineering plastic into an injection molding machine for heating and plasticizing; the plasticizing pressure is 100-150bar, and the temperature is 220-280 ℃;
step five: setting a specified process parameter digital temperature: 40-60 ℃, material temperature: 200 ℃ and 240 ℃, and maintaining the pressure: 12-18S, the tonnage of the injection molding machine is 1000T, and the molten composite engineering plastic is injected into the injection mold under the pressure of 40-80bar to be molded into the plastic skylight pulling plate by injection molding.
7. The method for manufacturing the automobile sunroof pulling plate according to claim 6, wherein the method comprises the steps of:
step six after step five: placing the plastic skylight pulling plate which is subjected to injection molding in a positioning jig, fixing the plastic skylight pulling plate by using a pneumatic pressing clamp, and trimming the edge by hand or a robot;
step seven: spraying glue on the trimmed plastic skylight pulling plate at a turn-up position by using an automatic glue spraying robot, and performing manual or robot turn-up operation;
step eight: the plastic skylight pulling plate which is well wrapped reversely is hot-pressed by an automatic reverse wrapping machine, and the temperature of the reverse wrapping is as follows: 135 ℃ and 150 ℃, the reverse packing time is 5-8S, and the reverse packing pressure is as follows: 100-150 bar;
step nine: and (4) confirming the hot-pressed plastic skylight pulling plate after the overhaul, and packing and storing the plastic skylight pulling plate by using a PE plastic film after confirming OK.
8. The method for manufacturing the automobile sunroof pulling plate according to claim 6, wherein the method comprises the steps of: in the second step, the baking temperature is 120 +/-5 ℃, and the baking time is 6H.
9. The method for manufacturing the automobile sunroof pulling plate according to claim 6, wherein the method comprises the steps of: in the fourth step, the plasticizing pressure is 120 +/-10 bar, and the temperature is 250 +/-10 ℃.
10. The method for manufacturing the automobile sunroof pulling plate according to claim 6, wherein the method comprises the steps of: and fifthly, heating the mold at 50 +/-10 ℃, keeping the material temperature at 220 +/-10 ℃, maintaining the pressure for 15 seconds, and injecting the composite engineering plastic in a molten state into an injection mold at the pressure of 60 +/-10 bar.
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