CN201446700U - Plastic sheet 3D hot-press-molding punching die - Google Patents
Plastic sheet 3D hot-press-molding punching die Download PDFInfo
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- CN201446700U CN201446700U CN2009200428589U CN200920042858U CN201446700U CN 201446700 U CN201446700 U CN 201446700U CN 2009200428589 U CN2009200428589 U CN 2009200428589U CN 200920042858 U CN200920042858 U CN 200920042858U CN 201446700 U CN201446700 U CN 201446700U
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Abstract
The utility model relates to a plastic sheet 3D hot-press-molding punching die, which comprises a molding die core and a punching mould; the punching mould comprises a male mould and a female mould, wherein the male mould is provided with the molding die core, and the molding die core is arranged inside a die cavity of the female mould after being molded; the edge of the molding die core is deviated inwards relative to the edge of the male mould so as to form a molding part of the punching mould; and the outer edge of the male mould and the inner edge of the female mould are arranged on a die parting line, and the outer edge of the male mould and the inner edge of the female mould form an edge of the punching mould. The connection problem between the molding and the punching is resolved; the shrinkage rate problem for heating the sheet is resolved; and the stability of the sheet on a printing position during the molding, i.e. the positioning problem of the sheet inside the molding die is solved.
Description
Technical field
The utility model belongs to a kind of mould that is used for, and specifically is the hot-forming die-cut mould of a kind of plastic sheet 3D.
Background technology
Present Research A+E: IMD is In-Mold Decoration in-mold decoration forming both at home and abroad.Be exactly plastic product in the process of injection mo(u)lding, the sheet material of print product appearance is placed in the mold cavity after molding press cutting or punching molding, fills, cooling, injection moulding is finished, and sheet material and plastic pellet are attached together under the HTHP of injection moulding, has finished the illuminated processing procedure simultaneously.
Diversified application has made in-mold decoration become can replace many traditional processing procedures ideally: as hot transfer printing, water transfer printing, surface directly print, traditional decoration method such as surperficial spraying, plating, double-shot moulding.It is best suited for the 3D product, especially needs the product manufacturing of uniformity cover Color Pattern, backlight, multiple color.No matter why are the color of required product, pattern, production can reach its diversity demand.Beautiful decoration not only, and compare with other manufacture methods, long service life, anticorrosive, ageing-resistant, wear-resisting, nondiscolouring, and dust and moisture is good.Mainly be used in now the dial plate, Washing Machine Panel decoration of transparent glasses lens, the automotive meter instruments and meters of mobile phone and some appliance panels, protection display screen etc., and developed into and decorated large-scale casing, as the aspects such as shell decoration of automobile.
In the prior art, the technological process of IMD is as follows:
1, the IMD sheet forming is die-cut: behind the sheet material location, and heating, plastics sucking moulding is placed on blanking on die cutting die then.Use equipment: plastic suction forming apparatus and punch press.
Advantage: sheet material size and product design bound edge are even, can do the complex three-dimensional product, are confined to product die joint simple products.Shortcoming: the die cutting die complex structural designs, easily cause sheet material to scratch, sheet material printing ink damages etc. are bad, and the transparent window product is particularly arranged.
2, IMD sheet material punching molding: sheet material has been debugged the profile size in advance, operates on mould, blanking, after the shaping mould heating, moulding, pressurize.Use equipment: heat pressing forming machines and punch press.
Advantage: the product that can mold complicated die joint.Shortcoming: block location around sheet material relies on, because the inconsistency of sheet material heating change causes sheet material and product bound edge poor consistency, bound edge is inhomogeneous.Be adapted at assembling the product that the bottom, back does not leak outside.
Summary of the invention
Goal of the invention: solve the consistency problem of in-mold decoration forming (IMD) sheet material and product bound edge, be implemented in the mould structure that sheet forming and die-cut two stations are finished simultaneously in the mold.
The hot-forming die-cut mould of a kind of plastic sheet 3D comprises shaping mould Renhe die cutting die; Described die cutting die comprises punch and die, is provided with the moulding die on punch, and moulding aftershaping die is in the die cavity of die; The edge of described moulding die is compared with the edge of punch, and skew is inwardly arranged, and constitutes the moulding section of die cutting die; Described punch outer rim and die inner edge are on die parting line, and punch outer rim and die inner edge constitute the edge of a knife of die cutting die.
Also be provided with upper mounted plate, punch retainer and bottom plate, described punch is connected on the upper mounted plate by punch retainer; Described die is fixed on the bottom plate.
Described punch profile is to add the shrinkage factor that sheet material expands with heat and contract with cold on product molding mold cavity profile basis, and promptly punch appearance and size is bigger than product injection mold cavity size.The moulding die inwardly side-play amount of skew equals processed sheet material (the sheet material specification behind product needed and the printed patterns) thickness.
The material of described punch and die is through heat treated punch die material.Die also can suitably be adjusted into other higher material of hardness according to design and process requirements.
Also be provided with the sheet material pressing plate, the sheet material pressing plate is positioned on the punch retainer by guide-post of die-set; Also be provided with elastomer (spring or rubber ring etc.) and stopping means between sheet material pressing plate and the punch retainer.Be provided with empty avoiding between sheet material pressing plate and the die, the position of empty avoiding is corresponding with the position of moulding die, prevents to compress sheet material and cause sheet material to stretch when moulding.
Also comprise the sheet material locking pin; Locking pin is fixed on the plane of the processed sheet material of placement of mould die.
Described locking pin has 2 at least; Each locking pin is evenly distributed on the edge of processed sheet material.
Described sheet material locking pin has four, is distributed in position, four angles of processed sheet material.
Also be provided with the sheet material liftout plate in the described concave die cavity, be provided with layer of silica gel at the upper surface of sheet material liftout plate.
Be provided with backing plate between described punch and the moulding die.
When concrete operation, in order to prevent plastic sheet stretcher strain when the moulding, do preliminary treatment to plastic sheet, promptly cut into dotted line shape through hole near the sheet material locking pin.
This mould can be finished sheet forming and die-cut under heat pressing forming machines, be suitable for complicated die joint product and mold notch simultaneously and repair easily.Reach sheet material and the product bound edge is even.And the edge of a knife of mould is easily repaired, and reaches the volume production demand.
This mould is particularly useful for the processing method that first moulding backlash is cut: sheet material is through hot briquetting, and pressurize typing back is die-cut.Because moulding section is by the molding mold cavity profile, die-cut profile is decided by product profile on injection mold, and rule of thumb data suitably add sheet material heat shrink rate for shaping mould again, to have guaranteed the uniformity of sheet forming and molding mold cavity.
This mould, solve moulding and die-cut between connection problem; The shrinkage factor problem of sheet material heating; The stability in sheet material printing position in moulding, the i.e. orientation problem of sheet material in shaping mould.
Description of drawings
Fig. 1 is this mould partial schematic diagram among the embodiment.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is among the embodiment under the user mode, this mould punch part schematic diagram.
Fig. 4 is among the embodiment under the user mode, this mould die part schematic diagram.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and the specific embodiment.
The hot-forming die-cut mould of a kind of plastic sheet 3D comprises shaping mould Renhe die cutting die; Described die cutting die comprises punch B003 and die B007, is provided with moulding die B005 on punch B003, and moulding aftershaping die B005 is in the die cavity of die B007; The edge of described moulding die B005 is compared with the edge of punch B003, and skew is inwardly arranged, and constitutes the moulding section of die cutting die; Described punch B003 outer rim and die B007 inner edge are on die parting line B016, and punch B003 outer rim and die B007 inner edge constitute the edge of a knife of die cutting die.
Also be provided with upper mounted plate B001, punch retainer B002 and bottom plate B012, described punch B003 is connected on the upper mounted plate B001 by punch retainer B002; Described die B007 is fixed on that the B012. upper and lower fixing plate is used for mould is installed in heat pressing forming machines on the bottom plate.
In this example, described punch B003 profile is to add the shrinkage factor that sheet material expands with heat and contract with cold on product molding mold cavity profile basis, and promptly punch B003 appearance and size is bigger than product injection mold cavity size.Moulding die B005 equals processed sheet material (the sheet material specification behind product needed and the printed patterns) thickness to the side-play amount of bias internal.The material of described punch B003 and die B007 is through heat treated punch die material.
Also be provided with sheet material pressing plate B006, sheet material pressing plate B006 is positioned on the punch retainer B002 by guide-post of die-set; Also be provided with spring and stopping means between sheet material pressing plate B006 and the punch retainer B002.Be provided with empty avoiding between sheet material pressing plate B006 and the die B007, the position of empty avoiding is corresponding with the position of moulding die B005, prevents to compress sheet material and cause sheet material to stretch when moulding.
Also comprise sheet material locking pin B014; Locking pin is fixed on the plane of the processed sheet material of placement of mould die B007.Described sheet material locking pin B014 has four, is distributed in position, four angles of processed sheet material.
Also be provided with sheet material liftout plate B008 in the described die B007 die cavity, be provided with layer of silica gel B015 at the upper surface of sheet material liftout plate B008.
Be provided with backing plate B004 between described punch B003 and the moulding die B005.
In this example, sheet material is the PET material of 0.188mm, adds ink thickness probably at 0.2～0.21mm.
As shown in Figure 1: B005 is the moulding die, its profile is by sheet thickness of mold cavity profile skew, as face 1 size 0.19mm, add the sheet material shrinkage factor simultaneously, separation is extended in die parting line position along product, suitably on the product bound edge, reduce 0.05～0.5mm (specific (special) requirements of this IMD product, if the alignment of product bound edge and product die parting line, can cause sheet material and product easily peel off or product on problem such as crumple is arranged).
B003 is a punch, and B007 is a die, and their materials are the punch die materials, through Overheating Treatment, is responsible for the sheet cutting after the moulding.(, thereby can reach the needs that repeat to repair the edge of a knife in the volume production because the B003 punch can separate with the B005 moulding section.)
Sheet material liftout plate B008 top adheres to one deck layer of silica gel B015, and main effect is that the protection sheet material is unlikely to be weighed wounded in moulding, under the make-up machine supercharging, because layer of silica gel has certain toughness, sheet material better is attached on the moulding section of shaping mould.
Because punch B003 is through Overheating Treatment, reprocessing is difficult, and backing plate B004 is supporting moulding die B005, when being trimmed to the pattern edge of a knife (being punch) B003, tackle the backing plate B004 face that falls mutually and handle, thereby guarantee the uniformity of mould, cut down finished cost simultaneously and shorten process time.
The design of sheet material pressing plate: the sheet material heating first moulding in back, though four anchor point location, positioning action is all arranged during to sheet material heating and moulding, if sheet forming excessive height or sheet length are long, sheet material is because of the stretching perk near will certainly causing the edge of a knife, cause to squeeze off sheet material when die-cut, thereby make the sheet material periphery rough and uneven in surface, influence product quality.So the design of sheet material pressing plate just necessitates.The sheet material pressing plate has guide-post of die-set location, adds spring and makes it that downward power be arranged, and adds spacingly simultaneously, is unlikely to drop in the time of the dress mould.If sheet material is crushed to death, sheet material stretches along the pressing plate position in the time of will causing sheet forming, causes printing ink to come off, and pattern becomes problems such as row.So on the sheet material pressing plate, do corresponding empty avoiding, to address the above problem.
Claims (10)
1. the hot-forming die-cut mould of plastic sheet 3D is characterized in that comprising shaping mould Renhe die cutting die; Described die cutting die comprises punch and die, is provided with the moulding die on punch, and moulding aftershaping die is in the die cavity of die; The edge of described moulding die is compared with the edge of punch, and skew is inwardly arranged, and constitutes the moulding section of die cutting die; Described punch outer rim and die inner edge are on die parting line, and punch outer rim and die inner edge constitute the edge of a knife of die cutting die.
2. the hot-forming die-cut mould of plastic sheet 3D according to claim 1 is characterized in that also being provided with upper mounted plate, punch retainer and bottom plate, and described punch is connected on the upper mounted plate by punch retainer; Described die is fixed on the bottom plate.
3. the hot-forming die-cut mould of plastic sheet 3D according to claim 3 is characterized in that the side-play amount that the moulding die inwardly is offset equals processed sheet thickness.
4. the hot-forming die-cut mould of plastic sheet 3D according to claim 1 and 2, the material that it is characterized in that described punch and die are through heat treated punch die material.
5. the hot-forming die-cut mould of plastic sheet 3D according to claim 1 and 2 is characterized in that also being provided with the sheet material pressing plate, and the sheet material pressing plate is positioned on the punch retainer by guide-post of die-set; Also be provided with elastomer and stopping means between sheet material pressing plate and the punch retainer; Be provided with empty avoiding between sheet material pressing plate and the die, the position of empty avoiding is corresponding with the position of moulding die.
6. the hot-forming die-cut mould of plastic sheet 3D according to claim 1 and 2 is characterized in that also comprising the sheet material locking pin; Locking pin is fixed on the plane of the processed sheet material of placement of mould die.
7. the hot-forming die-cut mould of plastic sheet 3D according to claim 6 is characterized in that described locking pin has 2 at least; Each locking pin is evenly distributed on the edge of processed sheet material.
8. the hot-forming die-cut mould of plastic sheet 3D according to claim 7 is characterized in that described sheet material locking pin has four, is distributed in position, four angles of processed sheet material.
9. the hot-forming die-cut mould of plastic sheet 3D according to claim 1 and 2 is characterized in that also being provided with in the described concave die cavity sheet material liftout plate, is provided with layer of silica gel at the upper surface of sheet material liftout plate.
10. the hot-forming die-cut mould of plastic sheet 3D according to claim 1 and 2 is characterized in that being provided with backing plate between described punch and the moulding die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200428589U CN201446700U (en) | 2009-06-26 | 2009-06-26 | Plastic sheet 3D hot-press-molding punching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200428589U CN201446700U (en) | 2009-06-26 | 2009-06-26 | Plastic sheet 3D hot-press-molding punching die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201446700U true CN201446700U (en) | 2010-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200428589U Expired - Fee Related CN201446700U (en) | 2009-06-26 | 2009-06-26 | Plastic sheet 3D hot-press-molding punching die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201446700U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173064A (en) * | 2010-12-27 | 2011-09-07 | 东莞劲胜精密组件股份有限公司 | Hot press molding method of sheet |
| CN109605664A (en) * | 2018-12-14 | 2019-04-12 | 佛山市敏博电子有限公司 | The post-press finishing technique of arc control panel |
-
2009
- 2009-06-26 CN CN2009200428589U patent/CN201446700U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173064A (en) * | 2010-12-27 | 2011-09-07 | 东莞劲胜精密组件股份有限公司 | Hot press molding method of sheet |
| CN109605664A (en) * | 2018-12-14 | 2019-04-12 | 佛山市敏博电子有限公司 | The post-press finishing technique of arc control panel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20170626 |