CN103624968A - Plastic sheet molding process for automotive body or automobile interior decorative parts - Google Patents
Plastic sheet molding process for automotive body or automobile interior decorative parts Download PDFInfo
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- CN103624968A CN103624968A CN201310388329.5A CN201310388329A CN103624968A CN 103624968 A CN103624968 A CN 103624968A CN 201310388329 A CN201310388329 A CN 201310388329A CN 103624968 A CN103624968 A CN 103624968A
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- sheet material
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- plastic uptake
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- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a plastic sheet molding process for automotive body or automobile interior decorative parts. The process is characterized by comprising the following steps: A, heating and softening a sheet material; B, placing the sheet material on a convex or concave die in a sealing cavity; C, pumping out air in the sealing cavity by using a vacuum pump; D, allowing the softened sheet material to cling to the die in the process of vacuumization; and E, finally carrying out cooling and molding. According to the plastic uptake process provided by the invention, a single die is used; high-precision convex-and-concave die cooperation and surface requirements in injection molding are not needed in the plastic uptake process; unlike an injection mold, the plastic uptake die does not bear a great extrusion force and only bears atmospheric pressure; thus, requirements on surface and die strength are low, a product development period is short, improvement can be conveniently carried out, a molding surface has good quality, and material density is uniform.
Description
Technical field
A kind of manufacture craft of carrying out time processing moulding for body of a motor car or automotive upholstery that involved in the present invention is, particularly be the technique of processing for articles of sheet material specially.
Background technology
In prior art, the inside gadget of body of a motor car or vehicle body be all by making after injection mo(u)lding, and plastics inside gadget namely, by plastic shaping or distortion and the parts of reprocessing by cutting if desired, is applied on automobile in many ways, such as support or liner, or the parts such as instrument board.The technique of injection mo(u)lding will expend a large amount of moulds, as long as product slightly changes, whole mould will just need to be opened system again.By Shooting Technique system vehicle body interior trim can not carry out moulding to decorative pattern, therefore higher to the processing request of injection mold.The injection machine of high pressure injection pressure is wanted in Shooting Technique injection mo(u)lding, so percent defective is high.
Summary of the invention
Given this, technical problem solved by the invention is in order to provide a kind of technique simple, convenient formation, and the plastic sheet moulding process to the less demanding a kind of body of a motor car of mould or automotive upholstery.To achieve these goals, the present invention adopts following steps to realize:
shouldthe plastic sheet moulding process of a kind of body of a motor car or automotive upholstery; it is characterized in that A, first by after sheet material thermoplastic; B, be placed on the punch or die in sealed chamber; C, utilize vavuum pump that the air of sealed chamber is extracted out; D, in inhaling the process of vacuum; make softening sheet material be close to mould, E, finally carry out cooling forming.
Also comprise the sheet material after moulding is carried out to slitter edge removing.
Described sheet material is double layer sheet.
The present invention is compared with prior art:
A) plastic uptake technique is used single mold, and do not need the high-precision concave-convex mold of the such needs of injection moulding to coordinate and surface requirements, also without injection mould, bear like that larger extruding force, adsorption mould only bears the effect of atmospheric pressure, therefore it is very low that effects on surface and mould strength require, the conventional material of current domestic plastics suction mould has: gypsum, timber, epoxy plate, resin, low-melting alloy etc., its material cost and processing charges are all than little many of same product injection mould, and the manufacturing cost of plastics suction mould is only 1/10 ~ 1/20 of like product injection mould expense conventionally
B) product development cycle is short, and it is convenient to improve, owing to taking single mold, therefore die manufacturing cycle shortens dramatically, meanwhile, when mould is revised, as long as a mould is only changed in size license, mould can not form and scrap, and revises more for convenience yet, because can meet product, slightly changes.And the product of producing by Shooting Technique, as long as product slightly changes, whole mould needs again to open system, therefore from the perfect improvement angle of product, plastic uptake technique has certain superiority.
C) molded surface quality is good, and density of material is even.Plastics sucking moulding system plate thermal forming, the surface quality of its profiled member and the uniformity coefficient of material only depend on the quality of sheet material, and common sheet material production is to be produced by special plate making machinery, its roll forming pressure is high, surface detail is clear, therefore high compared with the density of material of injection molding product with the product of this plate drug abuse moulding, surface quality is good, if the decorative patterns such as orange peel line that form surface of shell by Shooting Technique its Mould Machining by very difficult.Therefore, high for surface quality requirement, the large area thin-wall case that planform is comparatively complicated, plastic uptake technique is particularly applicable.
D) moulding process is good, and finished product percent defective is low.Owing to adopting the distortion of sheet material thermoplastic to reach moulding object, therefore substantially do not produce waste product in process, and similar this type of thin-wall construction, not only need the injection machine of high injection pressure, and the defect ware rate of production product is also very high with injection moulding process moulding.
E) equipment investment is little, and production technology is simple.Plastics sucking moulding more for convenience.Therefore, the equipment of for this reason making is also comparatively simple, only needs to configure general heating system, vacuum plant, control device requires high accuracy and complicated structure, due to succinct structure unlike injection machine, therefore the failure rate is low of equipment, maintenance expense is few, easy to use and reliable.Meanwhile, plastic uptake is produced less demanding to direct labor's technical ability, easy operating.
The specific embodiment
Detail of the present invention is: A, first that sheet material heater is softening, this heater is with the hair-dryer of thermal source, described sheet material to be blown to softening, B, then the sheet material after this being softened by conveying device is positioned on the punch or die in sealed chamber, C, utilize vavuum pump that the air of sealed chamber is extracted out, this step is plastic uptake step, by the special-purpose plastic uptake equipment of the applicant, carry out plastic uptake, the concrete structure of its equipment can be looked into China Patent No. ZL201010148801.4, D, in inhaling the process of vacuum, make softening sheet material be close to mould, E, finally carry out cooling forming, F, then the sheet material after moulding is carried out to slitter edge removing.The present invention also can carry out to double layer sheet the processing of above-mentioned technique.
In the present invention, double layer sheet is applicable to trunk lid of pickup truck, logistics tray etc.Single sheet is applicable to Auto door inner plating and vehicle body inside gadget, outer covering piece, main raw material(s) PC, ABS, HDPE, PS etc.
Claims (3)
1. the plastic sheet moulding process of a body of a motor car or automotive upholstery; it is characterized in that A, first by after sheet material thermoplastic; B, be placed on the punch or die in sealed chamber; C, utilize vavuum pump that the air of sealed chamber is extracted out; D, in inhaling the process of vacuum; make softening sheet material be close to mould, E, finally carry out cooling forming.
2. the plastic sheet moulding process of a kind of body of a motor car as claimed in claim 1 or automotive upholstery, characterized by further comprising the sheet material after moulding is carried out to slitter edge removing.
3. the plastic sheet moulding process of a kind of body of a motor car as claimed in claim 1 or automotive upholstery, is characterized in that described sheet material is double layer sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310388329.5A CN103624968A (en) | 2013-09-02 | 2013-09-02 | Plastic sheet molding process for automotive body or automobile interior decorative parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310388329.5A CN103624968A (en) | 2013-09-02 | 2013-09-02 | Plastic sheet molding process for automotive body or automobile interior decorative parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103624968A true CN103624968A (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310388329.5A Pending CN103624968A (en) | 2013-09-02 | 2013-09-02 | Plastic sheet molding process for automotive body or automobile interior decorative parts |
Country Status (1)
| Country | Link |
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| CN (1) | CN103624968A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526947A (en) * | 2014-12-05 | 2015-04-22 | 李兵 | Production method of special-shaped plastic building template |
| CN108407265A (en) * | 2018-03-12 | 2018-08-17 | 长春富维安道拓汽车饰件系统有限公司 | The forming method of automotive trim epidermis |
| CN111941805A (en) * | 2020-09-02 | 2020-11-17 | 扬州市拓博塑业有限公司 | Processing technology of large interior trim part for ABS flame-retardant bus |
| WO2021207905A1 (en) * | 2020-04-14 | 2021-10-21 | 简单绿能股份有限公司 | Method for manufacturing mat having ribbing structure, and mold for manufacturing mat having ribbing structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61154921A (en) * | 1984-12-28 | 1986-07-14 | Takashimaya Nitsupatsu Kogyo Kk | Manufacture of trim for automobile |
| JPS61158422A (en) * | 1984-12-29 | 1986-07-18 | Takashimaya Nitsupatsu Kogyo Kk | Manufacture of internal trim material of motor car |
| US5074770A (en) * | 1989-08-30 | 1991-12-24 | Intellex Corporation | Integrated vacuum forming/reaction injection molding apparatus for manufacturing a shaped polymeric laminate article |
| CN101372150A (en) * | 2007-08-22 | 2009-02-25 | 和成欣业股份有限公司 | Apparatus for forming composite panel |
| CN101612788A (en) * | 2009-06-30 | 2009-12-30 | 无锡吉兴汽车声学部件科技有限公司 | A kind of production method of auto sound-insulating and thermal-insulating pad |
-
2013
- 2013-09-02 CN CN201310388329.5A patent/CN103624968A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61154921A (en) * | 1984-12-28 | 1986-07-14 | Takashimaya Nitsupatsu Kogyo Kk | Manufacture of trim for automobile |
| JPS61158422A (en) * | 1984-12-29 | 1986-07-18 | Takashimaya Nitsupatsu Kogyo Kk | Manufacture of internal trim material of motor car |
| US5074770A (en) * | 1989-08-30 | 1991-12-24 | Intellex Corporation | Integrated vacuum forming/reaction injection molding apparatus for manufacturing a shaped polymeric laminate article |
| CN101372150A (en) * | 2007-08-22 | 2009-02-25 | 和成欣业股份有限公司 | Apparatus for forming composite panel |
| CN101612788A (en) * | 2009-06-30 | 2009-12-30 | 无锡吉兴汽车声学部件科技有限公司 | A kind of production method of auto sound-insulating and thermal-insulating pad |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526947A (en) * | 2014-12-05 | 2015-04-22 | 李兵 | Production method of special-shaped plastic building template |
| CN108407265A (en) * | 2018-03-12 | 2018-08-17 | 长春富维安道拓汽车饰件系统有限公司 | The forming method of automotive trim epidermis |
| WO2021207905A1 (en) * | 2020-04-14 | 2021-10-21 | 简单绿能股份有限公司 | Method for manufacturing mat having ribbing structure, and mold for manufacturing mat having ribbing structure |
| CN111941805A (en) * | 2020-09-02 | 2020-11-17 | 扬州市拓博塑业有限公司 | Processing technology of large interior trim part for ABS flame-retardant bus |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140312 |