CN105729683A - Method for manufacturing precise real leather-grain simulated molding surface of injection mold cavity - Google Patents
Method for manufacturing precise real leather-grain simulated molding surface of injection mold cavity Download PDFInfo
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- CN105729683A CN105729683A CN201610178287.6A CN201610178287A CN105729683A CN 105729683 A CN105729683 A CN 105729683A CN 201610178287 A CN201610178287 A CN 201610178287A CN 105729683 A CN105729683 A CN 105729683A
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- China
- Prior art keywords
- dermatoglyph
- electrode
- tunic
- leather
- raw hide
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- 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
- B29C45/26—Moulds
- B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
- B29C45/372—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings provided with means for marking or patterning, e.g. numbering articles
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a method for manufacturing a precise real leather-grain simulated molding surface of an injection mold cavity. The method sequentially comprises the steps of manufacturing of a raw hide model (1), manufacturing of a female die layer film (2), manufacturing of a male die electrode (3) and manufacturing of the leather-grain molding surface (4). The method comprises the technological steps that the female die layer film is obtained by using the raw hide model through an electroforming method; the male die electrode is obtained by conducting electric erosion machining on the female die layer film; and the leather-grain molding surface of the injection mold cavity is obtained by conducting electric erosion machining on the male die electrode. According to the technical scheme, the female die layer film obtained through electroforming can highly reflect the texture of real leather, so that the leather-grain molding surface is precisely simulated and duplicated. The defect that a leather-grain surface of a leather-grain simulated injection molded product lacks the texture in the prior art is overcome, so that the leather-grain surface of the leather-grain simulated injection molded product has the texture of the real leather.
Description
Technical field
The present invention relates to the manufacture method of a kind of molding mold cavity, specifically refer to emulate for a kind of molding mold cavity precision making corium decorative pattern former profile in the inner surface precision profiling of molding mold cavity the manufacture method of dermatoglyph profile.
Background technology
The surface of the interior trim injection-molded item of superior automobile needs artificial leather decorative pattern, this former profile being accomplished by making artificial leather decorative pattern at the inner surface of the die cavity of injection mold, is provided with the former profile of artificial leather decorative pattern, is called for short dermatoglyph profile；The employing photomechanical production of prior art, screen printing, silk screen printing, decalcomania transfer, the method of photosensitive etching, it is called for short photoetching, inner surface at molding mold cavity makes dermatoglyph profile, the dermatoglyph profile obtained due to described photoetching is bilevel planar profile, cause microexamination, the upper surface of the injection-molded item dermatoglyph of prior art is flat, dermatoglyph gully is all deep, without surface blending between dermatoglyph upper surface and dermatoglyph gully, lack the curved surface that sky, corium dermatoglyph surface becomes, surface blending between dermatoglyph surface and dermatoglyph gully, and the texture that the dermatoglyph gully depth is different, i.e. corium texture；Therefore, there are the problems and shortcomings of the dermatoglyph surface shortage corium texture of leather texture imitation injection-molded item in prior art.
Summary of the invention
For above-mentioned prior art Problems existing with not enough, the present invention adopts and through electrocasting method, raw hide model is obtained former tunic, formpiston electrode is obtained through galvanic corrosion processing with former tunic, obtain the processing step of the dermatoglyph profile of mold cavity through galvanic corrosion processing with formpiston electrode, the former tunic that electroforming obtains is utilized can highly to reflect corium texture, thus the technical scheme making dermatoglyph profile is turned in accurate emulation, the manufacture method of a kind of molding mold cavity precision emulation dermatoglyph profile is provided, it is intended to the dermatoglyph surface making leather texture imitation injection-molded item, reach the purpose possessing corium texture.
The object of the present invention is achieved like this: the manufacture method of a kind of molding mold cavity precision emulation dermatoglyph profile, includes raw hide model, former tunic, formpiston electrode successively to the processing step of dermatoglyph profile, wherein:
Described raw hide model is step one, and the dermatoglyph of corium covers outer surface outwardly that be attached to the model corresponding with molding mold cavity shape, it is thus achieved that raw hide model；The shape of raw hide model outer surface, size must be corresponding with the shape of molding mold cavity inner surface, size and morpheme convex-concave with morpheme；
Described former tunic is step 2, using described raw hide model as negative electrode, by metal nickel plate as anode, jointly it is immersed in equipped with in the container of nickel salt solution, logical unidirectional current carries out electroforming, under the effect of unidirectional current electrolysis, raw hide model surface electroformed deposit gradually goes out the electroforming tunic of layer of metal nickel, after described electroforming tunic deposit thickness is to 5～6 millimeters, to take out with in the raw hide model-container of electroforming tunic, afterwards by raw hide model and electroformed layer membrance separation, the concave surface of electroforming tunic replicates and obtains the cloudy dermatoglyph corresponding with corium dermatoglyph, the nickel salt solution adhered to by electroforming tunic with clear water rinses clean, after drying, obtain former tunic；
Described formpiston electrode is step 3, using described former tunic as anode, is connected with the anelectrode of numerically controlled discharge machine through carrying fixture；Electrode workpiece is connected with negative electrode as negative electrode, and in the fixing electric discharge machine oil sump being immersed in numerically controlled discharge machine workbench, carries out spark machined afterwards, i.e. galvanic corrosion is processed；Described electrode workpiece is the shape machine-shaping corresponding by molding mold cavity shape and the copper component leaving allowance；Former tunic processes the positive dermatoglyph corresponding with described cloudy dermatoglyph by galvanic corrosion at the outer surface of electrode workpiece, and outer surface obtains the electrode workpiece of sun dermatoglyph and is called formpiston electrode；
Described dermatoglyph profile is step 4, is connected as anode with the anelectrode of numerically controlled discharge machine by described formpiston electrode；Die cavity workpiece is connected with negative electrode as negative electrode, and in the fixing electric discharge machine oil sump being immersed in numerically controlled discharge machine workbench, carries out galvanic corrosion processing afterwards；Described die cavity workpiece be injection mold for making the steel components of die cavity, the cavity corresponding with injection-molded item external shape processed in advance by die cavity workpiece, and leaves allowance；Described formpiston electrode processes the dermatoglyph female face corresponding with described sun dermatoglyph by galvanic corrosion at the inner surface of the described cavity of die cavity workpiece, is dermatoglyph profile.
Operation principle and beneficial effect
The curved surface that corium dermatoglyph surface naturally occurs is made owing to electrocasting method can accurate emulate to turn over, surface blending between dermatoglyph surface and dermatoglyph gully, and the corium texture that the dermatoglyph gully depth is different, therefore, the present invention is obtained the former tunic possessing corium texture by raw hide model through electrocasting method, obtained the formpiston electrode possessing corium texture again by former tunic through galvanic corrosion, then provided dermatoglyph profile for corium texture through galvanic corrosion at the die cavity work pieces process of injection mold by formpiston electrode；Make the dermatoglyph surface of the leather texture imitation injection-molded item of the injection mold institute molding that the employing present invention makes, possessed the prominent effect of corium texture, and make the texture of dermatoglyph become apparent from, natural.
Above-mentioned, the present invention adopts and through electrocasting method, raw hide model is obtained former tunic, formpiston electrode is obtained through galvanic corrosion processing with former tunic, obtain the processing step of the dermatoglyph profile of mold cavity through galvanic corrosion processing with formpiston electrode, the former tunic that electroforming obtains is utilized can highly to reflect corium texture, thus the technical scheme making dermatoglyph profile is turned in accurate emulation, overcome the problems and shortcomings that prior art exists the dermatoglyph surface shortage corium texture of leather texture imitation injection-molded item, the manufacture method of a kind of molding mold cavity precision emulation dermatoglyph profile provided, make the dermatoglyph surface of leather texture imitation injection-molded item, reach the purpose possessing corium texture.
Accompanying drawing explanation
Fig. 1 is the processing step block diagram of the manufacture method of a kind of molding mold cavity precision emulation dermatoglyph profile of the present invention.
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail, but should not be construed as any limitation of the invention.
In figure: raw hide model 1, former tunic 2, formpiston electrode 3, dermatoglyph profile 4.
Embodiment explanation
The manufacture method a kind of molding mold cavity precision of the present invention being emulated dermatoglyph profile below by way of specific embodiment is described in further detail, those skilled in the art is referred to the method for embodiment and prepares the dermatoglyph profile 4 possessing corium texture, but should not be construed as any limitation of the invention.
Detailed description of the invention
Embodiment:
Consult Fig. 1, the manufacture method of a kind of molding mold cavity precision emulation dermatoglyph profile of the present invention, include the manufacturing process steps of raw hide model 1, former tunic 2, formpiston electrode 3 to dermatoglyph profile 4 successively,
The name of an article: the dermatoglyph profile 4 of Automobile air operculum molding mold cavity
Equipment: electrocasting machine, numerically controlled discharge machine, spark processing oil OIL200；
Step one, raw hide model 1 make:
The dermatoglyph of corium is covered outwardly the outer surface being attached to the model corresponding with molding mold cavity shape, it is thus achieved that raw hide model 1；The shape of raw hide model 1 outer surface, size must be corresponding with the shape of molding mold cavity inner surface, size and morpheme convex-concave with morpheme；
Step 2, former tunic 2 make:
Use electrocasting machine, using described raw hide model 1 as negative electrode, by metal nickel plate as anode, jointly it is immersed in equipped with in the container of the electrocasting machine of nickel salt solution, logical unidirectional current carries out electroforming, under the effect of unidirectional current electrolysis, raw hide model 1 surface electroformed deposit gradually goes out the electroforming tunic of layer of metal nickel, after described electroforming tunic deposit thickness is to 5～6 millimeters, to take out with in raw hide model 1 container of electroforming tunic, afterwards by raw hide model 1 and electroformed layer membrance separation, the concave surface of electroforming tunic replicates and obtains the cloudy dermatoglyph corresponding with corium dermatoglyph, the nickel salt solution adhered to by electroforming tunic with clear water rinses clean, after drying, obtain former tunic 2；
Step 3, formpiston electrode 3 make:
Use numerically controlled discharge machine, using described former tunic 2 as anode, be connected with the anelectrode of numerically controlled discharge machine through carrying fixture；Electrode workpiece is connected with negative electrode as negative electrode, and in the fixing electric discharge machine oil sump being immersed in numerically controlled discharge machine workbench, carries out spark machined afterwards, i.e. galvanic corrosion is processed；Described electrode workpiece is the shape machine-shaping corresponding by molding mold cavity shape and the copper component leaving allowance；Former tunic 2 processes the positive dermatoglyph corresponding with described cloudy dermatoglyph by galvanic corrosion at the outer surface of electrode workpiece, and outer surface obtains the electrode workpiece of sun dermatoglyph and is called formpiston electrode 3；
Step 4, dermatoglyph profile 4 make:
Use numerically controlled discharge machine, described formpiston electrode 3 is connected with the anelectrode of numerically controlled discharge machine as anode；Die cavity workpiece is connected with negative electrode as negative electrode, and in the fixing electric discharge machine oil sump being immersed in numerically controlled discharge machine workbench, carries out galvanic corrosion processing afterwards；Described die cavity workpiece be injection mold for making the steel components of die cavity, die cavity workpiece is processed the cavity corresponding with injection-molded item external shape in advance and leaves allowance；Described formpiston electrode 3 processes the dermatoglyph female face corresponding with described sun dermatoglyph by galvanic corrosion at the inner surface of the described cavity of die cavity workpiece, is dermatoglyph profile 4.
Principle and beneficial effect
The curved surface that corium dermatoglyph surface naturally occurs is made owing to electrocasting method can accurate emulate to turn over, surface blending between dermatoglyph surface and dermatoglyph gully, and the corium texture that the dermatoglyph gully depth is different, therefore, the dermatoglyph profile 4 of present invention processing possesses prominent corium texture, and the texture of dermatoglyph becomes apparent from, nature.
Claims (1)
1. the manufacture method of a molding mold cavity precision emulation dermatoglyph profile, include raw hide model (1), former tunic (2), formpiston electrode (3) successively to the processing step of dermatoglyph profile (4), it is characterised in that:
The raw hide model (1) that step one is described makes, and the dermatoglyph of corium covers outer surface outwardly that be attached to the model corresponding with molding mold cavity shape, it is thus achieved that raw hide model (1)；The shape of raw hide model (1) outer surface, size must be corresponding with the shape of molding mold cavity inner surface, size and morpheme convex-concave with morpheme；
The former tunic (2) that step 2 is described makes, using described raw hide model (1) as negative electrode, by metal nickel plate as anode, jointly it is immersed in equipped with in the container of nickel salt solution, logical unidirectional current carries out electroforming, under the effect of unidirectional current electrolysis, raw hide model (1) surface electroformed deposit gradually goes out the electroforming tunic of layer of metal nickel, after described electroforming tunic deposit thickness is to 5～6 millimeters, to take out with in raw hide model (1) container of electroforming tunic, afterwards by raw hide model (1) and electroformed layer membrance separation, the concave surface of electroforming tunic replicates and obtains the cloudy dermatoglyph corresponding with corium dermatoglyph, the nickel salt solution adhered to by electroforming tunic with clear water rinses clean, after drying, obtain former tunic (2)；
The formpiston electrode (3) that step 3 is described makes, and using described former tunic (2) as anode, is connected with the anelectrode of numerically controlled discharge machine through carrying fixture；Electrode workpiece is connected with negative electrode as negative electrode, and in the fixing electric discharge machine oil sump being immersed in numerically controlled discharge machine workbench, carries out spark machined afterwards, i.e. galvanic corrosion is processed；Described electrode workpiece is the shape machine-shaping corresponding by molding mold cavity shape and the copper component leaving allowance；Former tunic (2) processes the positive dermatoglyph corresponding with described cloudy dermatoglyph by galvanic corrosion at the outer surface of electrode workpiece, and outer surface obtains the electrode workpiece of sun dermatoglyph and is called formpiston electrode (3)；
The dermatoglyph profile (4) that step 4 is described makes, and described formpiston electrode (3) is connected as anode with the anelectrode of numerically controlled discharge machine；Die cavity workpiece is connected with negative electrode as negative electrode, and in the fixing electric discharge machine oil sump being immersed in numerically controlled discharge machine workbench, carries out galvanic corrosion processing afterwards；Described die cavity workpiece be injection mold for making the steel components of die cavity, the cavity corresponding with injection-molded item external shape processed in advance by die cavity workpiece, and leaves allowance；Described formpiston electrode (3) processes the dermatoglyph female face corresponding with described sun dermatoglyph by galvanic corrosion at the inner surface of the described cavity of die cavity workpiece, is dermatoglyph profile (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610178287.6A CN105729683B (en) | 2016-03-18 | 2016-03-18 | A kind of preparation method in the accurate emulation dermato glyphic pattern face of molding mold cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610178287.6A CN105729683B (en) | 2016-03-18 | 2016-03-18 | A kind of preparation method in the accurate emulation dermato glyphic pattern face of molding mold cavity |
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| Publication Number | Publication Date |
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| CN105729683A true CN105729683A (en) | 2016-07-06 |
| CN105729683B CN105729683B (en) | 2017-12-01 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1488486A (en) * | 2002-08-09 | 2004-04-14 | 麦克赛尔高技术株式会社 | Injection molding device and member used thereof and surface treatment method |
| CN201279894Y (en) * | 2008-10-22 | 2009-07-29 | 上海工程技术大学 | Molding mould for generating dermatoglyph on surface |
| CN201320823Y (en) * | 2008-12-26 | 2009-10-07 | 长春派格汽车塑料技术有限公司 | Movable mould of injection mould for automotive door interior trim panel |
| CN101722623A (en) * | 2008-10-22 | 2010-06-09 | 上海工程技术大学 | Low-pressure injection molding technology for directly generating grains on skin |
| CN101831672A (en) * | 2009-03-13 | 2010-09-15 | 尼瓦洛克斯-法尔股份有限公司 | The method that is used for the mould of electrocasting and makes this mould |
-
2016
- 2016-03-18 CN CN201610178287.6A patent/CN105729683B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1488486A (en) * | 2002-08-09 | 2004-04-14 | 麦克赛尔高技术株式会社 | Injection molding device and member used thereof and surface treatment method |
| CN201279894Y (en) * | 2008-10-22 | 2009-07-29 | 上海工程技术大学 | Molding mould for generating dermatoglyph on surface |
| CN101722623A (en) * | 2008-10-22 | 2010-06-09 | 上海工程技术大学 | Low-pressure injection molding technology for directly generating grains on skin |
| CN201320823Y (en) * | 2008-12-26 | 2009-10-07 | 长春派格汽车塑料技术有限公司 | Movable mould of injection mould for automotive door interior trim panel |
| CN101831672A (en) * | 2009-03-13 | 2010-09-15 | 尼瓦洛克斯-法尔股份有限公司 | The method that is used for the mould of electrocasting and makes this mould |
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| CN105729683B (en) | 2017-12-01 |
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