CN102294775B - Thin plate forming die and method for forming thin plate - Google Patents
Thin plate forming die and method for forming thin plate Download PDFInfo
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- CN102294775B CN102294775B CN201110229980.9A CN201110229980A CN102294775B CN 102294775 B CN102294775 B CN 102294775B CN 201110229980 A CN201110229980 A CN 201110229980A CN 102294775 B CN102294775 B CN 102294775B
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Abstract
The invention belongs to the technical field of plastic processing, and relates to an air cooled thin plate forming die and a method for forming a thin plate. The die comprises an upper die and a lower die, an upper hot pressboard and a lower hot pressboard are respectively fixedly connected with an upper template and a lower template; an upper heating tube and a lower heating tube are provided in the upper hot pressboard and the lower hot pressboard; blowing pipes are respectively provided in an blowing thermal insulation board and a lower blowing thermal insulation board, the upper thermal insulation board and the lower blowing thermal insulation board are respectively connected with a swing connecting rod, the initial point of the swing positions is positioned right above the upper hot pressboard and the lower hot pressboard, the terminal point positions are the positions that the upper blowing thermal insulation board and the lower blowing thermal insulation board are completely moved off the initial point, an upper ultrathin checkered plate and a lower ultrathin checkered plate are respectively connected with an upper checkered plate suspension frame and a lower checkered plate suspension frame, the upper ultrathin checkered plate is positioned right above a plastic plate and the lower ultrathin checkered plate is positioned right under the plastic plate. the method for molding the thin plate comprises: drawing the blowing thermal insulation boards, carrying out low-pressure mould matching to a template for heating and fusing a blank rubber sheet; carrying out high pressure mould matching after the blank rubber sheet is heated and fused, forming the product through the checkered plate; opening the template after molding, inserting the blowing thermal insulation boards and cooling the checkered plates and the product.
Description
Technical field
The invention belongs to the processing technique field of plastics, relate to a kind of air-cooled sheet forming mould and method for sheet forming blank.Present technique adopts the thin plate hot pressing processing technology of rapid heat cycle, is characterized in the process equipment cheapness, and the process-cycle is fast, can process especially big decorative pattern offset plate, the LGP of LCD TV for example, astigmatism plate.
Background technology
The thin plate of processing on market now, as the LGP of ting model and astigmatism plate etc., mainly to adopt injection mo(u)lding, but for large scale patterned thin plate, because the injection mo(u)lding length of flow is restricted, thus be mainly to adopt the thermal pressure moulding, again because product surface can not have the product quality requirement into watermark, with can only enter by side the reasons such as water, need steam heated and water-cooling process and equipment; And the comparison in equipment costliness of this class rapid heat cycle.Because mould needs whole heating and cooling, and this class mould volume is often larger, needs long-time heating and the long-time cooling process-cycle that just can complete, so the process-cycle is long, therefore, processing cost is large, and product is more expensive.
Summary of the invention
For problems of the prior art, one of purpose of the present invention is to provide a kind of sheet forming mould that uses the blowing thermal insulation board.
Two of purpose of the present invention is to provide a kind of and utilizes above-mentioned sheet forming mould to prepare the forming method of thin plate.
One of purpose of the present invention is achieved in that it comprises the upper die and lower die part, and part of the upper die comprises from top to down; Cope match-plate pattern, upper heating pressing plate, the up-draught thermal insulation board, upper ultra-thin diamond plate, part of the lower die comprises from top to down; Lower ultra-thin diamond plate, the canyon thermal insulation board, issue heating platen, lower bolster; Upper heating pressing plate is fixedly connected with cope match-plate pattern, issues heating platen and is fixedly connected with lower bolster; Be provided with heat-generating pipe in upper heating pressing plate, issue heating platen and be provided with lower heat-generating pipe; Be respectively equipped with blower in up-draught thermal insulation board and canyon thermal insulation board, the up-draught thermal insulation board is connected with swing connecting bar respectively with the canyon thermal insulation board, upper ultra-thin diamond plate is connected with upper diamond plate suspention frame, lower ultra-thin diamond plate is connected with lower diamond plate suspention frame, upper ultra-thin diamond plate is directly over plastic sheet, and lower ultra-thin diamond plate is under plastic sheet.
Upper heating pressing plate is fixedly connected with cope match-plate pattern by upper set screw, issues heating platen and is fixedly connected with lower bolster by lower set screw; The outlet of the blower in up-draught thermal insulation board and canyon thermal insulation board faces plastic sheet, the external ventilation duct of blower, the originating point position of the swing position of up-draught thermal insulation board and canyon thermal insulation board be upper heating pressing plate under and issue heating platen directly over, final position be up-draught thermal insulation board and canyon thermal insulation board leave fully the heating pressing plate under and issue heating platen directly over position.
Other parts of the mould of sheet forming can adopt current techique or innovative technology, do not make in the present invention claim, and therefore, description thereof is omitted.
Two of purpose of the present invention is achieved in that and comprises the steps:
(A), the mould standard-sized sheet is put into the blank offset plate;
(B), extract the blowing thermal insulation board out, template is hanged down press-fitting mould heat fused blank offset plate;
(C), high press-fitting mould after blank offset plate melted by heat, the diamond plate decorative pattern is passed to offset plate, formed product;
(D), the later half die sinking plate of formed product, insert the blowing thermal insulation board, cooling diamond plate and product;
(E), the cooling rear standard-sized sheet mould of product opens upper and lower diamond plate, takes out product, and puts into another blank offset plate, enters next forming process.
Heating pressing plate and issue heating platen and obtain heat energy by upper heat-generating pipe and lower heat-generating pipe in the present invention, and because own vol is thick large, keep huge heat energy, when low press-fitting mould, heat is immediately reached to upper ultra-thin diamond plate and lower ultra-thin diamond plate, upper ultra-thin diamond plate and lower ultra-thin diamond plate are passed to the blank plastic sheet to heating power when being close to the heating pressing plate and issuing heating platen, and softening sheet material; After plastic sheet is heated to fusion temperature, high press-fitting mould, be depressed into moulding on sheet material to the decorative pattern of upper ultra-thin diamond plate and lower ultra-thin diamond plate; After abundant moulding, half mold, insert up-draught thermal insulation board and canyon thermal insulation board respectively between upper heating pressing plate and upper ultra-thin diamond plate, reaches lower ultra-thin diamond plate and issue between heating platen, intercept heating power, and to upper ultra-thin diamond plate and lower ultra-thin diamond plate quenching; Because diamond plate is very thin, the heat of being with very little, therefore can fast cooling, and make the plastic sheet of moulding cooling immediately; At this moment the standard-sized sheet mould takes out finished product; Put into new sheet material again, extract the blowing thermal insulation board out, low press-fitting mould, enter next forming process.
The accompanying drawing explanation
The mould standard-sized sheet of Fig. 1, the embodiment of the present invention 1 is put into the structural representation of blank offset plate.
The extraction blowing thermal insulation board of Fig. 2, the embodiment of the present invention 1, template is hanged down press-fitting mould heat fused blank offset plate structural representation.
High press-fitting mould after the blank offset plate melted by heat of Fig. 3, the embodiment of the present invention 1, the diamond plate decorative pattern is passed to offset plate, the formed product structural representation.
Open template after the formed product of Fig. 4, the embodiment of the present invention 1, insert blowing thermal insulation board, cooling diamond plate and product structure schematic diagram.
The cooling rear standard-sized sheet mould of the product of Fig. 5, the embodiment of the present invention 1 is opened upper and lower diamond plate, takes out product, and puts into blank offset plate structural representation.
In figure: upper set screw 1, upper heating pressing plate 2, upper heat-generating pipe 3, up-draught thermal insulation board 4, upper diamond plate suspention frame 5, upper ultra-thin diamond plate 6, plastic sheet 7, lower ultra-thin diamond plate 8, lower diamond plate suspention frame 9, canyon thermal insulation board 10, lower heat-generating pipe 11, issue heating platen 12, lower set screw 13.
The specific embodiment
The present invention can, by specifically implementing in the technology illustrated in summary of the invention, by the following examples, can conduct further description the present invention, yet scope of the present invention be not limited to following embodiment.
Embodiment 1:
The sheet forming mould comprises set screw 1, upper heating pressing plate 2, upper heat-generating pipe 3, up-draught thermal insulation board 4, upper diamond plate suspention frame 5, upper ultra-thin diamond plate 6, plastic sheet 7, lower ultra-thin diamond plate 8, lower diamond plate suspention frame 9, canyon thermal insulation board 10, lower heat-generating pipe 11, issue heating platen 12, lower set screw 13;
Upper heating pressing plate 2 is fixedly connected with cope match-plate pattern by upper set screw 1, issues heating platen 12 and is fixedly connected with lower bolster by lower set screw 13, transmits heating power and presses softening offset plate moulding, be provided with heat-generating pipe 3 in upper heating pressing plate 2, issue heating platen 12 and be provided with lower heat-generating pipe 11, provide heating power to soften the offset plate moulding, be respectively equipped with blower in up-draught thermal insulation board 4 and canyon thermal insulation board 10, the outlet of blower faces plastic sheet 7, the external ventilation duct of blower, the heating power of quenching diamond plate and obstruct heating board, up-draught thermal insulation board 4 is connected with swing connecting bar respectively with canyon thermal insulation board 10, the originating point position of the swing position of up-draught thermal insulation board 4 and canyon thermal insulation board 10 be upper heating pressing plate 2 under and issue heating platen 12 directly over, final position be up-draught thermal insulation board 4 and canyon thermal insulation board 10 leave fully heating pressing plate 2 under and issue heating platen 12 directly over position, upper ultra-thin diamond plate 6 is connected with upper diamond plate suspention frame 5, drive and fixing ultra-thin diamond plate 6, lower ultra-thin diamond plate 8 is connected with lower diamond plate suspention frame 9, drive and fixing lower ultra-thin diamond plate 8, upper ultra-thin diamond plate 6 is directly over plastic sheet 7, lower ultra-thin diamond plate 8, under plastic sheet 7, mainly provides pattern forming.
Other parts of the mould of sheet forming can adopt current techique or innovative technology, do not explain in the present embodiment, but do not affect the realization of the present embodiment.
The forming method of thin plate:
(a), the mould standard-sized sheet, put into blank plastic sheet 7 between upper ultra-thin diamond plate 6 and lower ultra-thin diamond plate 8;
(b), extract up-draught thermal insulation board 4 and canyon thermal insulation board 10 out, upper ultra-thin diamond plate 6 and lower ultra-thin diamond plate 8 and the low press-fitting mould of blank plastic sheet 7, upper heating pressing plate 2 and issue heating platen 12 by upper heat-generating pipe 3 and 11 heating of lower heat-generating pipe, heat energy is reached on upper ultra-thin diamond plate 6 and lower ultra-thin diamond plate 8 to heat fused blank plastic sheet 7;
(c), high press-fitting mould again after blank plastic sheet 7 melted by heat, the decorative pattern of upper ultra-thin diamond plate 6 and lower ultra-thin diamond plate 8 is depressed on the plastic sheet 7 after fusing, formed product;
(d), the later half die sinking plate of formed product, upper heating pressing plate 2 and issue heating platen 12 returns, up-draught thermal insulation board 4 and canyon thermal insulation board 10 are inserted respectively between heating pressing plate 2 and upper ultra-thin diamond plate 6, reach lower ultra-thin diamond plate 8 and issue between heating platen 12 product on quenching after ultra-thin diamond plate 6 and lower ultra-thin diamond plate 8 and plastic sheet 7 moulding;
(e), the cooling rear standard-sized sheet mould of product, open ultra-thin diamond plate 6 and lower ultra-thin diamond plate 8, take out product, and put into another blank plastic sheet 7, enter next forming process.
Claims (2)
1. a sheet forming mould, it comprises the upper die and lower die part, part of the upper die comprises from top to down; Cope match-plate pattern, upper heating pressing plate (2), up-draught thermal insulation board (4), upper ultra-thin diamond plate (6), part of the lower die comprises from top to down; Lower ultra-thin diamond plate (8), canyon thermal insulation board (10), issue heating platen (12), lower bolster; It is characterized in that: the pressing plate that above generates heat (2) is fixedly connected with cope match-plate pattern, issues heating platen (12) and is fixedly connected with lower bolster; Be provided with heat-generating pipe (3) in upper heating pressing plate (2), issue heating platen (12) and be provided with lower heat-generating pipe (11); Be respectively equipped with blower in up-draught thermal insulation board (4) and canyon thermal insulation board (10), up-draught thermal insulation board (4) is connected with swing connecting bar respectively with canyon thermal insulation board (10), upper ultra-thin diamond plate (6) is connected with upper diamond plate suspention frame (5), lower ultra-thin diamond plate (8) is connected with lower diamond plate suspention frame (9), upper ultra-thin diamond plate (6) is directly over plastic sheet (7), and lower ultra-thin diamond plate (8) is under plastic sheet (7).
2. a kind of sheet forming mould according to claim 1, it is characterized in that: the pressing plate that above generates heat (2) is fixedly connected with cope match-plate pattern by upper set screw (1), issues heating platen (12) and is fixedly connected with lower bolster by lower set screw (13); The outlet of the blower in up-draught thermal insulation board (4) and canyon thermal insulation board (10) faces plastic sheet (7), the external ventilation duct of blower, the originating point position of the swing position of up-draught thermal insulation board (4) and canyon thermal insulation board (10) be upper heating pressing plate (2) under and issue heating platen (12) directly over, final position be up-draught thermal insulation board (4) and canyon thermal insulation board (10) leave fully heating pressing plate (2) under with issue heating platen (12) directly over position.
3, use the method for sheet forming blank of the described a kind of sheet forming mould of arbitrary claim in the claims 1-2, it is characterized in that: comprise the steps:
(A), the mould standard-sized sheet is put into the blank offset plate;
(B), extract up-draught thermal insulation board and canyon thermal insulation board out, template is hanged down press-fitting mould heat fused blank offset plate;
(C), high press-fitting mould after blank offset plate melted by heat, the diamond plate decorative pattern is passed to offset plate, formed product;
(D), the later half die sinking plate of formed product, insert up-draught thermal insulation board and canyon thermal insulation board, cooling diamond plate and product;
(E), the cooling rear standard-sized sheet mould of product opens upper and lower diamond plate, takes out product, and puts into another blank offset plate, enters next forming process.
4, the method for sheet forming blank of a kind of sheet forming mould according to claim 3, is characterized in that: comprise the steps:
(a), the mould standard-sized sheet, put into blank plastic sheet (7) between upper ultra-thin diamond plate (6) and lower ultra-thin diamond plate (8);
(b), extract up-draught thermal insulation board (4) and canyon thermal insulation board (10) out, upper ultra-thin diamond plate (6) and lower ultra-thin diamond plate (8) and the low press-fitting mould of blank plastic sheet (7), upper heating pressing plate (2) and issue heating platen (12) by the heating of upper heat-generating pipe (3) and lower heat-generating pipe (11), heat energy is reached on upper ultra-thin diamond plate (6) and lower ultra-thin diamond plate (8) to heat fused blank plastic sheet (7);
(c), high press-fitting mould again after blank plastic sheet (7) melted by heat, the plastic sheet (7) that the decorative pattern of upper ultra-thin diamond plate (6) and lower ultra-thin diamond plate (8) is depressed into after fusing is upper, formed product;
(d), the later half die sinking plate of formed product, upper heating pressing plate (2) and issue heating platen (12) return, up-draught thermal insulation board (4) and canyon thermal insulation board (10) are inserted respectively between heating pressing plate (2) and upper ultra-thin diamond plate (6), reach lower ultra-thin diamond plate (8) and issue between heating platen (12) product on quenching after ultra-thin diamond plate (6) and lower ultra-thin diamond plate (8) and plastic sheet (7) moulding;
(e), the cooling rear standard-sized sheet mould of product, open ultra-thin diamond plate (6) and lower ultra-thin diamond plate (8), take out product, and put into another blank plastic sheet (7), enter next forming process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110229980.9A CN102294775B (en) | 2011-08-11 | 2011-08-11 | Thin plate forming die and method for forming thin plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110229980.9A CN102294775B (en) | 2011-08-11 | 2011-08-11 | Thin plate forming die and method for forming thin plate |
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| Publication Number | Publication Date |
|---|---|
| CN102294775A CN102294775A (en) | 2011-12-28 |
| CN102294775B true CN102294775B (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110229980.9A Active CN102294775B (en) | 2011-08-11 | 2011-08-11 | Thin plate forming die and method for forming thin plate |
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| CN112297577A (en) * | 2019-07-31 | 2021-02-02 | 广东利元亨智能装备股份有限公司 | Diaphragm composite device |
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| JPS57135137A (en) * | 1981-02-17 | 1982-08-20 | Asahi Chem Ind Co Ltd | Forming method for synthetic resin and apparatus therefor |
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Address after: 214028 No.3, Xinrong Road, Xinwu District, Wuxi City, Jiangsu Province Patentee after: SIPO Precision Technology Co., Ltd Address before: B national high tech Development Zone Wuxi city Jiangsu province 214028 No. B4-C (New Road) Patentee before: SZEPAK PRECISION (WUXI) Co.,Ltd. |
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