CN103481501A - Progressive mold pressing technology and device for car door trim panel made of natural fiber composite material - Google Patents
Progressive mold pressing technology and device for car door trim panel made of natural fiber composite material Download PDFInfo
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- CN103481501A CN103481501A CN201310461136.8A CN201310461136A CN103481501A CN 103481501 A CN103481501 A CN 103481501A CN 201310461136 A CN201310461136 A CN 201310461136A CN 103481501 A CN103481501 A CN 103481501A
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Abstract
The invention discloses a progressive mold pressing technology and a device of an environment-friendly car door trim panel made of a natural fiber composite material. A four-station progressive mold is designed according to the forming characteristics of the car door trim panel made of the natural fiber composite material. The technology specifically comprises the steps as follows: heating core fibrofelt in the first station; heating surface fibrofelt, and performing compression molding forming on a core plate simultaneously in the second station; performing the compression molding forming on a face plate and the core plate, bonding the face plate and the core plate together, and bonding required plastic inserts on the surface of a core layer or a surface layer simultaneously in the third station; and performing punching and blanking operation to obtain the car door trim panel in the fourth station. The production technology overcomes the disadvantages of complicated structure, high cost and low efficiency of a compound mold of the car door trim panel made of the natural fiber composite material, thereby facilitating automatic production.
Description
Technical field
The present invention relates to a kind of progressive die compression technology and device of eco-friendly car car door natural-fiber composite material trim panel.Adopt sandwich layer fibrofelt and surface layer fibrofelt continuous band-shaped, pre-setting, hot-forming on multistation progressive die, punching and blanking after the bonding plastics inserts, obtain interior finishing board of composite material.
Background technology
Along with improving constantly of scientific and technological development and people's environmental consciousness, original door inner decoration board contains more plasticizer usually, and is unfavorable for recycling.The global shape rule of such trim panel, but have groove, and local radius of curvature is less, need to door lock, storage trough etc. be installed at the facing surface of vehicle door interior trim panel, at the core layer surface adhered plastics inserts of the trim panel that deviates from the occupant.Usually door inner decoration board mostly is working of plastics, and corresponding molding mode is injection mo(u)lding; It is raw material that the mode of production of existing fibrous composite trim panel be take the fibrofelt of sheet, and what coordinate automotive trim panel production is composite die, in process of production, and the slightly complicated inaccuracy that will cause trim panel product size and shape of shape.
Summary of the invention
For addressing the above problem, the raw material that the fibrofelt coiled strip that the present invention's application is made by natural fiber and synthetic chemistry fiber is produced as door inner decoration board, in order to coordinate the change of this ep-type material, the present invention has designed moulding process and the progressive die of producing Automobile class trim panel.This class moulding process and progressive die are mainly used in the forming process of automobile front and back door.This multistation progressive die, successively complete the sandwich layer fibrofelt hot-forming, surface layer fibrofelt hot-forming and with middle layer plate compound, at the sandwich layer of trim panel and surface layer bonding plastics inserts, punching and blanking respectively, produce vehicle door interior trim panel.
Trim panel surface layer fibrofelt coiled strip and sandwich layer fibrofelt coiled strip that the present invention utilizes natural fiber and harmless synthetic fibers to make, adopt hot press forming technology to manufacture Automobile class trim panel, good environmental protection, be convenient to recycle, and belongs to environmental friendliness shaped material and technology.
To achieve these goals, the present invention adopts following technical scheme.
A kind of progressive die pressure device of car door natural-fiber composite material trim panel, comprise four stations setting gradually and grading surface layer fibrofelt and sandwich layer fibrofelt continuously, and on described four stations, being provided with can die sinking and upper bolster and the die shoe of matched moulds; The upper bolster of described the first station and die shoe are provided with the sandwich layer heating plate, for the sandwich layer fibrofelt is heated; Be provided with the sandwich layer hot pressing die on the upper bolster of described the second station and die shoe, for the sandwich layer fibrofelt, be pressed into middle layer plate; Be provided with the surface layer hot pressing die on upper bolster on described the 3rd station and die shoe, middle layer plate for the surface layer fibrofelt after heating and moulding is compressing, and the heat pressure adhesive of realization and middle layer plate, the surface layer hot pressing die is provided with core layer surface inserts processing unit (plant) and facing surface inserts processing unit (plant); The upper bolster of described the 4th station and die shoe are provided with the trim panel mould, on described trim panel mould, also are provided with flanging/stripper and punching die, and working is respectively process residue to be unloaded and completed down punching, blanking.Take out vehicle door interior trim panel, then banded process residue moves to right and is wound recovery by guide roller.
As a further improvement on the present invention, be provided with the surface layer heating plate above or below described the first station or the second station, for the surface layer fibrofelt is heated.In forming process, it is fixing that upper bolster keeps.Article two, backing plate is positioned at the upper surface of upper bolster, reserved suitable space between these two backing plates, and the level of being convenient to the surface layer fibrofelt transports and heats with heating plate.
Be provided with guide roller between first and second station, this guide roller is fixed on upper bolster, the sandwich layer fibrofelt sagging distortion under Action of Gravity Field after preventing from heating.
Be provided with guide roller between second and third station.In the matched moulds process, when die shoe promotion middle layer plate moves upward, this guide roller moves upward thereupon together; Meanwhile, the surface layer fibrofelt of vertical direction, the surface layer fibrofelt of horizontal direction are worked in coordination with and are retreated, crooked in mould, folding with the surface layer fibrofelt of avoiding vertical direction.In the die sinking process, this guide roller is along with in type middle layer plate moves down together, when middle layer plate drops to the position of certain height and during stop motion, and the stop motion thereupon of this guide roller.When sandwich layer fibrofelt level transports, this guide roller changes moving both vertically of surface layer fibrofelt into horizontal movement, is beneficial to compound at the 3rd station of middle layer plate and surface layer fibrofelt.
Described surface layer heating plate is divided into heating plate and lower heating plate, and described upper heating plate and lower heating plate are individually fixed on upper padding plate and lower bolster.
The progressive die pressure device of described car door natural-fiber composite material trim panel also is provided with ejector beam, and in type goods are ejected to die cavity.
Be provided with a long and narrow through hole between the described second and the 3rd station, be convenient to the vertical transport of surface layer fibrofelt.Die shoe pumps under the effect of dynamical system, drives the bed die of clamping on die shoe and pumps together.
Sandwich layer fibrofelt and surface layer fibrofelt are after entering the mold work district, its dual-side is all clamped by fixture, and travelled forward by fixture drive fibrofelt, avoid sandwich layer fibrofelt and surface layer fibrofelt that shrinkage occurs when compression molding, or deform in transportation.After sandwich layer fibrofelt and surface layer fibrofelt leave the mold work district, the fixture Automatic-falling of its dual-side.
Surface layer fibrofelt and sandwich layer fibrofelt transport forward under the effect of corresponding guide roller.These guide rollers as required, are separately fixed on upper bolster or die shoe.
Last reel is reeled process residue to collect, and recycles.
The present invention also provides a kind of progressive die compression technology of car door natural-fiber composite material trim panel, comprises the steps:
1) at the first station, when mould is closed, heating plate is to the heating of sandwich layer fibrofelt, and heat treated temperature is 175 ℃-250 ℃.
2) at second station, in the matched moulds process, die shoe moves upward, when sandwich layer hot pressing punch contacts straight sandwich layer fibrofelt, sandwich layer hot pressing punch promotes the sandwich layer fibrofelt and moves upward together, final sandwich layer hot pressing punch and sandwich layer hot pressing die closure, the sandwich layer fibrofelt is pressed moulding in closed mould cavity.In the die sinking process, in type middle layer plate moves downward together with sandwich layer hot pressing punch, when arriving the guide roller height and position between first and second station, middle layer plate stops moving down, sandwich layer hot pressing punch continues to move downward gets back to bottom dead centre, thereby realizes separating of in type middle layer plate and sandwich layer hot pressing punch.Simultaneously, to the heating of surface layer fibrofelt, heat treatment temperature is 175 ℃-250 ℃.
3) at the 3rd station, when mould is closed, between the middle layer plate of surface layer fibrofelt and moulding, be pressed moulding, and the heat pressure adhesive of realization and middle layer plate.Before mould starts closure, the bonding plane that needs is bonded in to the plastic insert on middle layer plate surface is heated to molten condition, and is placed in the counterdie position of appointment, completes being hot bonding of plastic insert and middle layer plate when matched moulds.Be bonded in the plastic insert on surface layer plate surface for needs, before mould starts closure, the bonding plane of plastic insert is heated to molten condition, and by special fixtures, plastic insert is placed in reliably to the patrix position of appointment, prevent from dropping under the effect of gravity, complete being hot bonding of plastic insert and surface layer plate when matched moulds, after the die sinking process in, the plastic insert that is adhered to the surface layer plate can move downward together with the surface layer plate, realizes separating of plastic insert and mold.
4) at the 4th station, complete punching and blanking in the matched moulds process, after the die sinking process in, the flanging/stripper that is installed on the blanking punch periphery plays the discharging effect, and process residue is unloaded down from blanking punch.Punched scrap is discharged from the slug hole of bed die.After die sinking completes, take out vehicle door interior trim panel, then banded process residue moves to right and is wound recovery by guide roller, is accordingly therewith, sandwich layer fibrofelt and surface layer fibrofelt also to the right level transport, thereby enter the working cycles of next matched moulds/die sinking.
The temperature of the pre-heat treatment described in described the 3rd station is 175 ℃-250 ℃, and the time of the pre-heat treatment is 60-100 second; The hot moulding temperature is 175 ℃-300 ℃; On the automotive trim board mold, the molding pressure of shaped by fluid pressure is 15-20MPa, and the shaped by fluid pressure time is 60-100 second.
The present invention compares with the mould in usually being used in the production of Automobile class trim panel, has following characteristics and advantage:
1) the present invention design is to utilize fibrofelt coiled strip that natural fiber makes as raw material, and corresponding molding mode is hot-forming.
2) raw material of the present invention's application is natural fiber felt coiled strip continuous band-shaped, pre-setting, coordinates progressive die, and complicated forming process is progressively completed on a plurality of stations, and every step operation is relatively simple, effectively improves the accuracy of product.
3) the present invention becomes multistation progressive die by the Design of Dies of producd fibers interior finishing board of composite material, is different from single station composite die commonly used, is conducive in enormous quantities, the automated production of automotive trim panel.
The accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the first station die figure.
Fig. 3 is second and third station die figure.
Fig. 4 is the 4th station die figure.
Wherein, 1, surface layer fibrofelt; 2, upper bolster; 3, sandwich layer upper padding plate; 4, heating plate on sandwich layer; 5, sandwich layer fibrofelt; 6, heating plate under sandwich layer; 7, sandwich layer lower bolster; 8, die shoe; 9, the first guide roller; 10, the second guide roller; 11, sandwich layer hot pressing punch; 12, the 3rd guide roller; 13, sandwich layer hot pressing die; 14, surface layer upper padding plate; 15, heating plate on surface layer; 16, heating plate under surface layer; 17, surface layer lower bolster; 18, the 4th guide roller; 19, the 5th guide roller; 20, surface layer hot pressing punch; 21, core layer surface inserts processing unit (plant); 22, surface layer hot pressing die; 23, facing surface inserts processing unit (plant); 24, flanging/stripper; 25, trim panel die; 26, piercing punch; 27, core layer surface plastic insert; 28, facing surface plastic insert; 29, trim panel punch; 30, blanking punch; 31, slug hole; 32, the 6th guide roller.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As Figure 1-Figure 4, a kind of progressive die pressure device of car door natural-fiber composite material trim panel, comprise four stations setting gradually and grading surface layer fibrofelt 1 and sandwich layer fibrofelt 5 continuously, on described four stations, being provided with can die sinking and upper bolster 2 and the die shoe 8 of matched moulds; Upper bolster 2 keeps fixing, and die shoe 8 pumps under the effect of dynamical system, drives the mould of clamping on die shoe 8 and pumps together.
Described the first station is provided with on sandwich layer heating plate 6 under heating plate 4 and sandwich layer, and on sandwich layer, heating plate 4 is fixed on upper bolster 2 by sandwich layer upper padding plate 3, and under sandwich layer, heating plate 6 is fixed on die shoe 8 by sandwich layer lower bolster 7; The sandwich layer fibrofelt 5 of reeling by the second guide roller 10 flatly level enter heating on heating plate 6 under heating plate 4 and sandwich layer on sandwich layer.
Be fixed on upper bolster 2 being provided with the 3rd guide roller 12, the three guide rollers 12 between first and second station, prevent the sandwich layer fibrofelt 5 sagging distortion under Action of Gravity Field after heating.
Be provided with sandwich layer hot pressing die 13 and sandwich layer hot pressing punch 11 on described the second station, for sandwich layer fibrofelt 5 is pressed into to middle layer plate, described sandwich layer hot pressing die 13 and sandwich layer hot pressing punch 11 are separately fixed on upper bolster 2 and die shoe 8;
On described the second station, the upper surface of upper bolster 2 is provided with surface layer upper padding plate 14 and surface layer lower bolster 17, is provided with on surface layer heating plate 16 under heating plate 15 and surface layer between surface layer upper padding plate 14 and surface layer lower bolster 17, for to 1 heating of surface layer fibrofelt.The surface layer fibrofelt 1 of reeling by the first guide roller 9 flatly level enter heating in heating plate 16 under heating plate 15 and surface layer on surface layer.Reserved suitable space between surface layer upper padding plate 14 and surface layer lower bolster 17, the level of being convenient to surface layer fibrofelt 1 transports and heats with heating plate 16 under heating plate on surface layer 15 and surface layer.
Be provided with the 4th guide roller 18 and the 5th guide roller 19 between second and third station.The 4th guide roller 18 changes vertical feed in order to the horizontal feed of surface layer fibrofelt 1, between the described second and the 3rd station, is provided with a long and narrow through hole, is convenient to the vertical transport of surface layer fibrofelt 1.
In the matched moulds process, when die shoe 8 promotion middle layer plates move upward, the 5th guide roller 19 moves upward thereupon together; Meanwhile, collaborative the retreating of surface layer fibrofelt 1 of vertical direction, horizontal direction, crooked in mould, folding with the surface layer fibrofelt 1 of avoiding vertical direction.In the die sinking process, the 5th guide roller 19 is along with in type middle layer plate moves down together, when middle layer plate drops to the position of certain height and during stop motion, and the 5th guide roller 19 stop motion thereupon.When sandwich layer fibrofelt 5 levels transport, the 5th guide roller 19 changes moving both vertically of surface layer fibrofelt 1 into horizontal movement, is beneficial to compound at the 3rd station of middle layer plate and surface layer fibrofelt 1.
Be provided with surface layer hot pressing punch 20 and surface layer hot pressing die 22 on described the 3rd station, middle layer plate for the surface layer fibrofelt 1 after heating and moulding is compressing, and the heat pressure adhesive of realization and middle layer plate, be respectively equipped with core layer surface inserts processing unit (plant) 21 and facing surface inserts processing unit (plant) 23 on surface layer hot pressing punch 20 and surface layer hot pressing die 22, for processing core layer surface plastic insert 27 and facing surface plastic insert 28.
Described the 4th station is provided with trim panel die 25 and trim panel punch 29, be individually fixed on upper bolster 2 and die shoe 8, be respectively equipped with flanging/stripper 24 and blanking punch 30 on described trim panel die 25 and trim panel punch 29, play the discharging effect, process residue is unloaded down from blanking punch 30, be respectively equipped with piercing punch 26 and slug hole 31 on described trim panel die 25 and trim panel punch 29, punched scrap is discharged from slug hole 31.
Be provided with the 6th guide roller 32 after described the 4th station, taking out vehicle door interior trim panel, then banded process residue moves to right and is wound recovery by the 6th guide roller 32.
The course of work of the present embodiment is: in a die sinking and matched moulds process,
At the first station, when mould is closed, 6 pairs of sandwich layer fibrofelts of heating plate, 5 heating under heating plate 4 and sandwich layer on sandwich layer, heat treated temperature is 175 ℃-250 ℃.
At second station, in the matched moulds process, die shoe 8 moves upward, when sandwich layer hot pressing punch 11 contacts straight sandwich layer fibrofelt 5, sandwich layer hot pressing punch 11 promotes sandwich layer fibrofelt 5 and moves upward together, final sandwich layer hot pressing punch 11 and sandwich layer hot pressing die 13 closures, sandwich layer fibrofelt 5 is pressed moulding in closed mould cavity.In the die sinking process, in type middle layer plate moves downward together with sandwich layer hot pressing punch 11, when arriving the height and position of the 3rd guide roller 12 between first and second station, middle layer plate stops moving down, sandwich layer hot pressing punch 11 continues to move downward gets back to bottom dead centre, thereby realizes separating of in type middle layer plate and sandwich layer hot pressing punch 11.Simultaneously, to 1 heating of surface layer fibrofelt, heat treatment temperature is 175 ℃-250 ℃.
At the 3rd station, when mould is closed, between the middle layer plate of surface layer fibrofelt 1 and moulding, be pressed moulding, and the heat pressure adhesive of realization and middle layer plate.Before mould starts closure, the bonding plane of core layer surface plastic insert 27 is heated to molten condition, and is placed in the counterdie position of appointment, complete being hot bonding of core layer surface plastic insert 27 and middle layer plate when matched moulds.Be bonded in facing surface plastic insert 28 for needs, before mould starts closure, the bonding plane of facing surface plastic insert 28 is heated to molten condition, and with fixture, facing surface plastic insert 28 is placed in reliably to the patrix position of appointment, prevent from dropping under the effect of gravity, complete being hot bonding of facing surface plastic insert 28 and surface layer plate when matched moulds, after the die sinking process in, the facing surface plastic insert 28 that is adhered to surface layer can move downward together with the surface layer plate, realizes separating of plastic insert and mold.
At the 4th station, complete punching and blanking in the matched moulds process, after the die sinking process in, the flanging/stripper 24 that is installed on blanking punch 30 peripheries plays the discharging effect, and process residue is unloaded down from blanking punch 30.Punched scrap is discharged from the slug hole 31 of die shoe 8.After die sinking completes, take out vehicle door interior trim panel, then banded process residue moves to right and is wound recovery by the 6th guide roller 32, is accordingly therewith, sandwich layer fibrofelt 5 and surface layer fibrofelt 1 also to the right level transport, thereby enter the working cycles of next matched moulds/die sinking.
Although above-mentioned, by reference to the accompanying drawings the specific embodiment of the present invention is described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (10)
1. the progressive die pressure device of car door natural-fiber composite material trim panel, is characterized in that, comprises four stations and the process residue retracting device that set gradually, and on described four stations, being provided with can die sinking and upper bolster and the die shoe of matched moulds; The upper bolster of described the first station and die shoe are provided with the sandwich layer heating plate; Be provided with the sandwich layer hot pressing die on the upper bolster of described the second station and die shoe; Be provided with the surface layer hot pressing die on upper bolster on described the 3rd station and die shoe, the surface layer hot pressing die is provided with core layer surface inserts processing unit (plant) and facing surface inserts processing unit (plant); The upper bolster of described the 4th station and die shoe are provided with the trim panel mould, on described trim panel mould, also are provided with flanging/stripper and punching die.
2. the progressive die pressure device of car door natural-fiber composite material trim panel as claimed in claim 1, is characterized in that, is provided with the surface layer heating plate above or below described the first station or the second station.
3. the progressive die pressure device of car door natural-fiber composite material trim panel as claimed in claim 1, is characterized in that, between first and second station, is provided with guide roller.
4. the progressive die pressure device of car door natural-fiber composite material trim panel as claimed in claim 1, is characterized in that, between second and third station, is provided with guide roller.
5. the progressive die pressure device of car door natural-fiber composite material trim panel as claimed in claim 1, is characterized in that, described surface layer heating plate is divided into heating plate and lower heating plate, and described upper heating plate and lower heating plate are individually fixed on upper padding plate and lower bolster.
6. the progressive die pressure device of car door natural-fiber composite material trim panel as claimed in claim 1, is characterized in that, the progressive die pressure device of described car door natural-fiber composite material trim panel also is provided with ejector beam.
7. the progressive die pressure device of car door natural-fiber composite material trim panel as claimed in claim 1, is characterized in that, between the described second and the 3rd station, is provided with through hole.
8. the progressive die pressure device of car door natural-fiber composite material trim panel as claimed in claim 1, is characterized in that, described sandwich layer fibrofelt and surface layer fibrofelt both sides are clamped by fixture.
9. the progressive die compression technology of car door natural-fiber composite material trim panel, is characterized in that, comprises four stations and continuous grading surface layer fibrofelt and the sandwich layer fibrofelt that set gradually, comprises the steps:
1), at the first station, heating plate heats the sandwich layer fibrofelt;
2), at the second station, the sandwich layer fibrofelt is pressed moulding in closed mould cavity; And realize separating of in type middle layer plate and sandwich layer hot pressing die;
3) at the 3rd station, be pressed moulding between the middle layer plate of surface layer fibrofelt and moulding, realize the heat pressure adhesive with middle layer plate, and complete being hot bonding of plastic insert and middle layer plate, surface layer plate;
4) at the 4th station, complete punching and blanking;
After taking out vehicle door interior trim panel, the recovery process waste material.
10. the progressive die compression technology of car door natural-fiber composite material trim panel as claimed in claim 9, it is characterized in that, the heat treated temperature of described the first station and the second station is 175 ℃-250 ℃, the temperature of the pre-heat treatment described in the 3rd station is 175 ℃-250 ℃, and the time of the pre-heat treatment is 60-100 second; The hot moulding temperature is 175 ℃-300 ℃; On the automotive trim board mold, the molding pressure of shaped by fluid pressure is 15-20MPa, and the shaped by fluid pressure time is 60-100 second.
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| CN201310461136.8A CN103481501B (en) | 2013-09-30 | 2013-09-30 | The progressive die compression technology of car door trim panel made of natural fiber composite material and device |
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| CN201310461136.8A CN103481501B (en) | 2013-09-30 | 2013-09-30 | The progressive die compression technology of car door trim panel made of natural fiber composite material and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114407537A (en) * | 2022-01-24 | 2022-04-29 | 朱群益 | Textile printing and dyeing printing drying system and method |
| CN116373344A (en) * | 2023-06-01 | 2023-07-04 | 宁海县第一注塑模具有限公司 | Mould for forming carbon fiber |
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| CN102700114A (en) * | 2012-05-26 | 2012-10-03 | 无锡吉兴汽车声学部件科技有限公司 | Production technology of rear shelf of car |
| CN102873972A (en) * | 2012-10-24 | 2013-01-16 | 长春博超汽车零部件股份有限公司 | Once composite automatic molding device for automobile interior trimming panel |
| CN203543096U (en) * | 2013-09-30 | 2014-04-16 | 山东大学 | Grading mould pressing device for natural fiber composite material interior plate of automobile door |
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| EP0836927A1 (en) * | 1996-10-14 | 1998-04-22 | Idemitsu Petrochemical Co., Ltd. | Method for producing a decorative sheet and apparatus for producing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116373344B (en) * | 2023-06-01 | 2023-08-15 | 宁海县第一注塑模具有限公司 | Mould for forming carbon fiber |
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