CN108312432A - A kind of modularization fast plastic mould of 3D printing and preparation method thereof - Google Patents
A kind of modularization fast plastic mould of 3D printing and preparation method thereof Download PDFInfo
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- CN108312432A CN108312432A CN201810112950.1A CN201810112950A CN108312432A CN 108312432 A CN108312432 A CN 108312432A CN 201810112950 A CN201810112950 A CN 201810112950A CN 108312432 A CN108312432 A CN 108312432A
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- mold insert
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- mould
- mold
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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
- 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
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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
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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
- B29C2033/385—Manufacturing moulds, e.g. shaping the mould surface by machining by laminating a plurality of layers
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to the modularization fast plastic moulds and its manufacturing method of a kind of 3D printing.A kind of modularization fast plastic mould of 3D printing, including mode, the mode includes center mould bases made of 3D printing and multiple small mold inserts for being removably mounted in the center mould bases, and multiple small mold inserts complement each other to form the big mold insert with the model cavity for injection molding in the center mould bases.Present invention incorporates 3D printing and the mach advantage of metal, has the characteristics that the manufacturing cycle is short, manufacturing cost is low and injection molding part quality is high, the service life of mode entirety can be increased, reduce the maintenance cost of mold；Plastic insert is made by 3D printing in common position mold insert in small mold insert, it can accelerate the manufacture process of mold entirety, reduce the manufacturing cost of mold entirety, privileged sites mold insert is the metal inserted piece made of machining, precision is high, high-quality, can be to extend the service life of mold, ensure the quality of injecting products.
Description
Technical field
The present invention relates to mould manufacturing fields, are molded for small lot in product development front end in particular to one kind
Modularization fast plastic mould of the 3D printing of production and preparation method thereof.
Background technology
In traditional injection mold injection moulding process, mold needs high temperature resistant and high pressure, therefore has centainly to mold materials
Requirement, common mold materials are all metal materials, such as mould steel and aluminium alloy.Traditional injection mold by mode, mould bases,
Ejection system and running gate system composition.Mode has core and cavity two parts, and composition product is molded by front and back mould die joint
Cavity body of mould.Processing, including lathe, milling machine, grinding machine and drilling machine of a set of metal mode etc. commonly machining and wire cutting,
Spark discharge processes the extraordinary machining such as (EDM) and digital control processing (CNC).The processing of mode, which adds, matches mould, completes a whole set of
Metal die usually requires the time of several thoughtful some months.
Volume production stage metal die is at comprehensive three product quantity, manufacturing cycle and manufacturing cost aspects weighed with very
Big advantage.For product development early period, since the product quantity of needs is seldom, open a set of metal die need it is very expensive
Manufacturing cost and longer manufacturing cycle, traditional metal die have been unable to meet new era small lot personalization and customize with
And product quickly updates the demand of iteration.With the continuous development of society, traditional extensive and centralized manufacturing mode has been endangered
Machine is heavy, and small lot, customization and personalized epoch arrive silently.
Currently, with personalized and the customization epoch arrivals, the development cycle of product largely determines this
The success or not of a product, thus be badly in need of it is a kind of can low cost and can quickly obtain small lot high-quality authentic material note
Mould the fast mould of model.
Invention content
In order to solve the above technical problems, the present invention provides modularization fast plastic mould and its manufacturer of a kind of 3D printing
Method, have the characteristics that can quick replacement, manufacturing cycle are short, manufacture is low with maintenance cost and injection molding part quality is high, can be small 48
When within directly small lot produce authentic material high quality injection molding component.
The technical solution adopted by the present invention is：A kind of modularization fast plastic mould of 3D printing, including mode, institute are provided
It includes center mould bases made of 3D printing and multiple small mold inserts for being removably mounted in the center mould bases to state mode, Duo Gesuo
It states small mold insert and complements each other to form the big mold insert with the model cavity for injection molding in the center mould bases.
In the modularization fast plastic mould of 3D printing of the present invention, the center mould bases is equipped with cavity, institute
The avris of big mold insert is stated by being tightly fixed in the cavity, is mutually abutted between the adjacent small mold insert.
In the modularization fast plastic mould of 3D printing of the present invention, the small mold insert is to print to make by 3D
At integrated formed structure.
In the modularization fast plastic mould of 3D printing of the present invention, the center mould bases and the small mold insert by
One or more in digital ABS material, ultraviolet curable resin material or light sensitivity composite resin material are made.
In the modularization fast plastic mould of 3D printing of the present invention, the small mold insert includes common position mold insert
With privileged sites mold insert, the common position mold insert is the plastic insert made of 3D printing, and the privileged sites mold insert is
The metal inserted piece made of machining.
In the modularization fast plastic mould of 3D printing of the present invention, the privileged sites mold insert is to be used to form
The mold insert of the thin position of bone, the deep position of bone or high details and high-precision position.
The present invention also provides a kind of production methods of modularization fast plastic mould, include the following steps：
Center mould bases and multiple small mold insert, the center mould bases of the S1 processing for forming mode are made up of 3D printing,
Multiple small mold inserts can complement each other to form the big mold insert with the model cavity for injection molding；
Multiple small mold inserts are cooperated and are detachably arranged in center mould bases by S2.
In the production method of modularization fast plastic mould of the present invention, the center mould bases is equipped with cavity,
The avris of the big mold insert is mutually abutted by being tightly fixed in the cavity between the adjacent small mold insert.
In the production method of modularization fast plastic mould of the present invention, the small mold insert includes common position edge
Part and privileged sites mold insert, the common position mold insert are the plastic insert made of 3D printing, the privileged sites mold insert
For the metal inserted piece made of machining.
In the production method of modularization fast plastic mould of the present invention, the center mould bases and the common portion
Position mold insert by using digital ABS material, thermosetting resin or composite resin material stereolithography technology (SLA), even
Continuous liquid level manufacturing technology (CLIP), digital light processing forming technique (DLP), more material spraying techniques (PolyJet) or material spray
Printing technique (MJP) is penetrated directly to print.
It is mach with metal that modularization fast plastic mould provided by the invention and preparation method thereof combines 3D printing
Advantage has the characteristics that the manufacturing cycle is short, manufacturing cost is low and injection molding part quality is high, by the way that big mold insert to be divided into one by one
Small mold insert, and small mold insert is mounted on by dismountable mode in center mould bases, can when making one of them small mold insert damage
Quick replacement is individually carried out to it, without replacing other small mold inserts, avoids traditional die core insert because of i.e. quilt after local damage
The case where abandoning or replacing, increases the service life of mode entirety, reduces the maintenance cost of mold.Meanwhile small mold insert being divided
For common position mold insert and privileged sites mold insert, common position mold insert is the plastic insert made of 3D printing, can be several
Hour or non-working time complete manufacture, accelerate the manufacture process of mold entirety with this, and can reduce the manufacture of mold entirety
Cost, privileged sites mold insert are the metal inserted piece made of machining, and precision is high, high-quality, can be to extend the longevity of mold
Life, the quality for ensureing injecting products.Plastic mould provided by the invention has the characteristics that modular construction, overall structure are distributed more
It rationally, can be within 48 hours quickly by the modularization fast plastic mould of the 3D printing using more convenient, maintenance is simpler
The complex component that injection molding obtains the authentic material of high-quality is a up to more than 100, and this component is suitble in product development front end needs
The model for quickly obtaining authentic material carries out functional test, including electric property, falls, high temperature resistant and durability.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is the dimensional structure diagram of front cavity and preceding outline border mould bases in the embodiment of the present invention one；
Fig. 2 is the overlooking structure diagram of front cavity and preceding outline border mould bases in the embodiment of the present invention one；
Fig. 3 is the structural schematic diagram of front cavity in the embodiment of the present invention one；
Fig. 4 is rear cavity in the embodiment of the present invention one, the dimensional structure diagram of rear outline border mould bases and ejection system；
Fig. 5 is rear cavity in the embodiment of the present invention one, the overlooking structure diagram of rear outline border mould bases and ejection system；
Fig. 6 is rear cavity in the embodiment of the present invention one, the right side structural representation of rear outline border mould bases and ejection system；
Fig. 7 is the structural schematic diagram of rear cavity in the embodiment of the present invention one；
Fig. 8 is the dimensional structure diagram of front cavity and preceding outline border mould bases in the embodiment of the present invention two；
Fig. 9 is the overlooking structure diagram of front cavity and preceding outline border mould bases in the embodiment of the present invention two；
Figure 10 is rear cavity in the embodiment of the present invention two, the dimensional structure diagram of rear outline border mould bases and ejection system；
Figure 11 is rear cavity in the embodiment of the present invention two, the overlooking structure diagram of rear outline border mould bases and ejection system；
Figure 12 is rear cavity in the embodiment of the present invention two, the right side structural representation of rear outline border mould bases and ejection system.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment one
The embodiment of the present invention one provides a kind of modularization fast plastic mould of 3D printing, including mould bases, mode, ejection system
System and running gate system.Wherein, precision component of the mode for the crucial running at mold center position, complicated, difficulty of processing
Greatly, cost is high.Mode in the present embodiment include center mould bases and it is multiple in island structure be mounted on the center mould bases in
Small mold insert, center mould bases are equipped with cavity, and multiple small mold inserts are removably mounted in the cavity of center mould bases, and multiple small mold inserts
The big mold insert with the model cavity for injection molding is complemented each other to form in center mould bases.By the way that big mold insert is divided into one
Each and every one small mold insert, and small mold insert is mounted on by dismountable mode in center mould bases, make one of them small mold insert damage
When can carry out quick replacement to it, without replacing other small mold inserts, avoid traditional die core insert because of i.e. quilt after local damage
The case where abandoning or replacing, increases the service life of mode entirety, reduces the maintenance cost of mold.Further, Duo Ge little
The avris for the big mold insert that mold insert forms in center mould bases is fixed on by interference fit in the cavity, between adjacent small mold insert
Then mutually compressed under the pressure that cavity wall is given it is closely coupled, to make each small mold insert can be by external force from center mould bases
It easily extracts or is inserted into clamping, to realize the purpose of the small mold insert of quick-replaceable.
Further, the small mold insert includes common position mold insert and privileged sites mold insert, and privileged sites mold insert is used for
Form the mold insert of the thin position of bone, the deep position of bone or high details and high-precision position, position, the position of bone such as model position of bone thickness less than 1mm
Depth is more than the position of 5mm and requires high details and high-precision hinge and screw thread position.3D printing is a kind of increasing material manufacturing
Technology, molding are not influenced by complicated, and the free forming of arbitrary shape may be implemented, and can simplify manufacture end
Supply chain realizes industrial design end and manufacture slitless connection, therefore can be greatly facilitated manufacturing innovation and create.3D printing is
A kind of new-create new tool of wound, it is fast, good, cheap to fast implement.Common 3D printing or increases material manufacturing technology packet
Stereolithography technology (SLA) is included, fusion sediment technology (FDM), continuous liquid level manufacturing technology (CLIP), digital light is processed into
Type technology (DLP), more material spraying techniques (PolyJet), laminated solid mass manufacture (LOM), Selective Laser Sintering (SLS)
With selective laser fusion technology (SLM) and electron beam melting technology (EBM).SLM and EBM can be directly real in these technologies
Existing metallic print, can quickly obtain the rough accessory of metal, but usually also needs to logical finishing in a few days and can be only achieved use
It is required that in addition matching the mould time needed for two to three weeks, and manufacturing cost compares traditional mach die cost higher, meets
The not demand of fast mould.The modularization fast plastic mould and its manufacturing method of 3D printing provided by the invention, combine
3D printing and the mach advantage of metal have the characteristics that the manufacturing cycle is short, manufacturing cost is low and injection molding part quality is high.At this
In embodiment, common position mold insert is the plastic insert made of 3D printings, and privileged sites mold insert is to be made up of machining
Metal inserted piece, privileged sites mold insert is since the precision of demand is higher, preferably using gold made of traditional machining
Belong to mold insert, to extend the service life of mold, ensure the quality of injecting products, and common position mold insert is preferably using fast by 3D printing
Plastic insert made of speed can complete manufacture in several hours or non-working time, with this accelerate the manufacture of mold entirety into
Journey, and the manufacturing cost of mold entirety can be reduced.
As shown in Figures 1 to 7, the mould bases in the embodiment of the present invention one includes preceding outline border mould bases 1 and rear outline border mould bases 8, preceding
Outline border mould bases 1 and rear outline border mould bases 8 are respectively used to support, fixed front cavity and rear cavity.Due to preceding outline border mould bases 1 and rear outline border
Mould bases 8 can be shared when making various molds, therefore preceding outline border mould bases 1 in the present embodiment and rear outline border mould bases 8 are to use
The standard metal outline border mould bases that traditional machine is processed into, preceding outline border mould bases 1 and rear outline border mould bases 8, can be by the way of sharing
One step reduces manufacturing time and cost.Mode includes front cavity and rear cavity, and front cavity includes preceding center mould bases 3 and front cavity edge
Part 7, rear cavity include rear center mould bases 10 and the first mold insert of rear cavity 16, the second small mold insert 17 of rear cavity, rear cavity third
Small mold insert 18, the 4th small mold insert 19 of rear cavity, the 5th small mold insert 20 of rear cavity, the 6th small mold insert 15 of rear cavity.Preceding center mould bases 3
With rear center mould bases 10 be above-mentioned center mould bases, front cavity mold insert 7, the first mold insert of rear cavity 16, the second small mold insert 17 of rear cavity,
The small mold insert 18 of rear cavity third, the 4th small mold insert 19 of rear cavity, the 5th small mold insert 20 of rear cavity, the 6th small mold insert 15 of rear cavity are
For the common position mold insert.Front cavity and rear cavity offer above-mentioned cavity respectively, and front cavity mold insert 7 is mounted on preceding middle-frame mould
In frame 3, the first mold insert of rear cavity 16, the second small mold insert 17 of rear cavity, the small mold insert 18 of rear cavity third, the 4th small mold insert of rear cavity
19, the 5th small mold insert 20 of rear cavity, 15 mutual tight fit of the 6th small mold insert of rear cavity form big mold insert and are mounted on rear middle-frame mould
In frame 10.Front cavity and rear cavity after installation is complete correspond respectively to the first half shapes and the second half shapes of injection molding model,
When front cavity and rear cavity are combined together, the model cavity for injection molding is formed between the two.Preceding middle-frame mould
Frame 3 and rear center mould bases 10 and front cavity mold insert 7, the first mold insert of rear cavity 16, the second small mold insert 17 of rear cavity, rear cavity
Three small mold inserts 18, the 4th small mold insert 19 of rear cavity, the 5th small mold insert 20 of rear cavity, the 6th small mold insert 15 of rear cavity are use
Plastic part made of 3D printing.The center mould bases and common position mold insert can be by using digital ABS material, thermosetting property trees
The stereolithography technology (SLA) of fat or composite resin material, continuous liquid level manufacturing technology (CLIP), digital light processing molding
Technology (DLP), more material spraying techniques (PolyJet) or material jet printing technology (MJP) directly print.Wherein, hot
Thermosetting resin includes ultraviolet curable resin and light sensitivity composite resin material, the thermosetting resin plastic mould hardness after resin forming
(HRD) 80 or more, and plastic mould heat distortion temperature (HDT) is 50 DEG C or more under 0.45MPa load.Compound resin material
Material includes ceramic based resin composite material, metal based resin composite material and carbon-based resin composite material.Carbon-based resin is compound
Material includes carbon nanotube, graphite and graphene powder, and ceramic base resin compounded includes silica, aluminium oxide and silicon nitride powder
End, metal based resin composite material includes silver, copper and powder of stainless steel, and the powder in composite resin material is micron order, sub-
Micron and/or nano-grade size.Center mould bases and common position mold insert in the present embodiment use digital ABS material
(Digital ABS) is manufactured by more material spraying techniques (PolyJet), and digital ABS material is a kind of thermosetting resin, by soft
Pliable resin and fire resistant resin composition, the mold printed by digital ABS material is a kind of core-shell structure, manufacture
The shell material of plastic mould is compliance resin, and nuclear material is the digital material of mixing arrangement of compliance resin and fire resistant resin
Expect, the printing of plastic components in rigid material (Vero series) also the same suitable mode of PolyJet technologies.Compared to other 3D
The component of technology printing, this kind of component not only has preferable toughness and heat-resisting quantity, while having higher precision and stability
And durability.
Front cavity further includes preceding mould runner 6, preceding sprue or the sprue bushing 5 being arranged on the preceding center mould bases 3, preceding
The components such as screw hole 4 and front cavity tiger's jaw 2.Rear cavity further includes the rear cavity tiger's jaw being arranged on center mould bases 10 in the rear
9, the components such as rear mold runner 13, rear sprue or sprue bushing 12, pin 15 and rear screw hole 11.Preceding screw hole 4 is equipped with two
A, the rear and front end of center mould bases 3 before being separately positioned on, preceding center mould bases 3 is each passed through two preceding screws by 2 screws
Hole 4 and before being fixed on outline border mould bases 1.Screw hole 11 is again provided with two afterwards, is separately positioned on the front and back of rear center mould bases 10
Both ends, rear center mould bases 10 i.e. after 2 screws are each passed through two screw hole 11 by be fixed on rear outline border mould bases 8.Before
Screw hole 4 and rear screw hole 11 are reserved in by 3D printing in front cavity and rear cavity when making respectively, preceding 1 He of outline border mould bases
Equally it is reserved with threaded hole corresponding with preceding screw hole 4 or rear screw hole 11 on outline border mould bases 8 when making afterwards.Front cavity tiger
Mouthfuls 2 and rear cavity tiger's jaw 9 can cooperate close engaging, the front cavity tiger's jaw 2 in the present embodiment is four and is arranged in preceding center
Convex block protruding upward on 3 four angles of mould bases, rear cavity tiger's jaw 9 are four and are arranged on rear outline border mould bases 8 and four convex blocks
The recessed portion that position and shape size match can pass through front cavity tiger's jaw 2 and rear cavity when front cavity and rear cavity molding
Tiger's jaw 9 position and clamping.Pin 15, preceding mould runner 6, rear mold runner 13, preceding sprue or sprue bushing 5, rear mainstream
Road or sprue bushing 12 belong to privileged sites mold insert, preceding mould runner 6, rear mold runner 13, preceding to ensure the quality of mold processing
Either sprue bushing 5, rear sprue or sprue bushing 12 are all made of the mach method making of conventional metals to sprue, and metal is added in advance
It is directly fitted on the center mould bases of plastic material or in other mold inserts after work is complete.Ejection system be arranged on rear outline border mould bases 8 with
In the opposite one side of rear cavity, ejection system includes thimble 14, thimble panel 21, top rod 23 and Ejector Retainer Plate 22.To ensure
Making is pre-machined by metal machining in the precision of mould, in the present embodiment, the thimble 14 of ejection system, refills and is fitted on small edge
In part.
After the completion of the modularization fast plastic mould of the 3D printing integrally assembles, manually the plastic mould is attached to
On Babyplast miniature injection machines (6 tons of locked mode pressure), makrolon (PC) plastic granule is heated by running gate system and is melted
It is injected into sprue or sprue bushing and model cavity, is molded after cooling in pressurize and mould, mode blows cooling through air pressure gun through nozzle
It can pass through ejection system ejecting product to 25 DEG C or so.
Using the modularization fast plastic mould of 3D printing provided in this embodiment, fast injection molding can be obtained within 48 hours
To the complex component of the authentic material of small lot high-quality, this component is suitble to need quickly to obtain in product development front end true
The model of material carries out functional test, including electric property, mechanical property, assembly, falls and durability.
Embodiment two
As shown in Fig. 8 to Figure 12, unlike embodiment one：Center mould bases in embodiment two and common position mold insert
It is to be printed by stereo lithography (SLA) based on epoxy phenolic resin material, this epoxy phenolic resin is one
The thermosetting resin of kind rigidity, high temperature resistant and wearability.Compared to the plastics mode of other 3D technologies printing, which has
Preferable wearability, toughness, high temperature resistant, precision and stability.It also can be used ceramic base compound resin logical in other embodiments
Stereo lithography (SLA) manufacture is crossed, and there is higher temperature tolerance and resistance in the resin forming rear mold that ceramic powders are added
Mill property.
Front cavity in embodiment two includes preceding center mould bases 3 and front cavity mold insert 7, and rear cavity includes rear center mould bases 10
And the first mold insert of rear cavity 16, the second small mold insert 17 of rear cavity, the small mold insert 18 of rear cavity third, the 6th small mold insert of rear cavity
15.Preceding center mould bases 3 and rear center mould bases 10 are the center mould bases, front cavity mold insert 7, the first mold insert of rear cavity 16, rear mold
The second small mold insert 17 of benevolence, the small mold insert 18 of rear cavity third, the 6th small mold insert 15 of rear cavity are the common position mold insert.Preceding mould
Benevolence further include preceding mould runner 5, preceding sprue or the sprue bushing 6 being arranged on the preceding center mould bases 3, preceding screw hole 4 and
The components such as front cavity tiger's jaw 2.Rear cavity further includes the rear cavity tiger's jaw 9 being arranged on center mould bases 10 in the rear, rear mold shunting
The components such as road 12, rear sprue or sprue bushing 13, pin 15 and rear screw hole 11.Pin 15, preceding mould runner 5, rear mold point
Either sprue bushing 6, rear sprue or sprue bushing 13 belong to privileged sites mold insert for runner 12, preceding sprue, to ensure mold processing
Quality, either sprue bushing 6, rear sprue or sprue bushing 13 are adopted for pin 15, preceding mould runner 5, rear mold runner 12, preceding sprue
Made of the mach method of conventional metals, be directly fitted on after metal has been pre-machined on the center mould bases of plastic material or its
In his mold insert.Ejection system includes thimble 14, thimble panel 19, top rod 21 and Ejector Retainer Plate 20.To ensure the precision of depanning,
In the present embodiment, the thimble 14 of ejection system is pre-machined making again by metal machining and reassembles in mode.Implement
Two other parts of example are identical as embodiment one.
The present embodiment is manually attached to plastic mould after the modularization fast plastic mould of 3D printing completes the production
On Babyplast miniature injection machines (6 tons of locked mode pressure), by running gate system by acrylonitrile-butadiene-styrene copolymer
(ABS) plastic granule heating melting is injected into through nozzle in model cavity, is molded after cooling in pressurize and mould, mode blows cold through air pressure gun
But pass through ejection system ejecting product to 25 DEG C or so.
Using the modularization fast plastic mould for the 3D printing that embodiment provides, fast injection molding can be obtained within 48 hours
The component of the authentic material of small lot high-quality, this component are suitble to need quickly to obtain authentic material in product development front end
Model carries out functional test, including assembly, intensity, electric property and durability.
The embodiment of the present invention also provides a kind of production method of the modularization fast plastic mould of 3D printing, including following step
Suddenly：
S1 processes center mould bases and multiple small mold inserts, and multiple small mold inserts can be complemented each other to form with for injection molding
The big mold insert of model cavity；Small mold insert includes common position mold insert and privileged sites mold insert；Privileged sites mold insert is used to form thin
The mold insert of the position of bone, the deep position of bone or high details and high-precision position, as model position of bone thickness is big less than the position of 1mm, position of bone depth
In the position of 5mm and require high details and high-precision hinge and screw thread position.
In this step, center mould bases and common position mold insert are the plastic insert made of 3D printing；Special portion
Position mold insert is the metal inserted piece made of machining.Further, center mould bases and common position mold insert are by using number
Stereolithography technology (SLA), the continuous liquid level manufacturing technology of ABS material, thermosetting resin or composite resin material
(CLIP), digital light processing forming technique (DLP), more material spraying techniques (PolyJet) or material jet printing technology (MJP)
Directly print.Wherein, thermosetting resin includes ultraviolet curable resin and light sensitivity composite resin material, after resin forming
Thermosetting resin plastic mould hardness (HRD) is 80 or more, and plastic mould heat distortion temperature (HDT) is under 0.45MPa load
50 DEG C or more.Composite resin material includes ceramic based resin composite material, and metal based resin composite material and carbon-based resin are multiple
Condensation material.Carbon-based resin composite material includes carbon nanotube, graphite and graphene powder, and ceramic base resin compounded includes titanium dioxide
Silicon, aluminium oxide and alpha-silicon nitride powders, metal based resin composite material include silver, copper and powder of stainless steel, and composite resin material
In powder be micron order, sub-micron and/or nano-grade size.Digital ABS material (Digital ABS) is such as used to pass through more
Material spraying technique (PolyJet) manufactures, and digital ABS material is a kind of thermosetting resin, by compliance resin and high temperature resistant tree
Fat forms, and the mold printed by digital ABS material is a kind of core-shell structure, and the shell material of the plastic mould of manufacture is
Compliance resin, nuclear material are the digital materials of mixing arrangement of compliance resin and fire resistant resin, PolyJet technologies it is rigid
Property material (Vero series) also the same suitable mode in plastic components printing.It, should compared to the component of other 3D technologies printing
Kind component not only has preferable toughness and heat-resisting quantity, while having higher precision and stability and durability.Based on resistance to
High temperature photosensitive resin material is printed by stereo lithography (SLA), and this epoxy phenolic resin is a kind of rigid, resistance to
The thermosetting resin of high temperature and wearability.Compared to the plastics mode of other 3D technologies printing, which has preferable wear-resisting
Property, toughness, high temperature resistant, precision and stability.In other embodiments, also ceramic base compound resin can be used to pass through stereolithography
Technology (SLA) manufactures, and has higher temperature tolerance and wearability in the resin forming rear mold that ceramic powders are added.In addition,
Mold weight can also be mitigated by design topology, to be further reduced mold manufacturing time and cost.
Multiple small mold inserts are cooperated and are detachably arranged in center mould bases by S2.
The center mould bases is equipped with cavity, and the avris of the big mold insert of small mold insert composition is by being tightly fixed in cavity
In, it is mutually abutted between adjacent small mold insert, makes to be fixed to one another soldier's formation model cavity.The mode that center mould bases and small mold insert are formed
It molds and is installed on outline border mould bases, and by 3D printing in mould bases, mode, ejection system and running gate system assembly cost embodiment
Modularization fast plastic mould.
As stated above the modularization fast plastic mould of manufactured 3D printing be suitable for injection molding machine type be it is horizontal or
Vertical injection molding machine, and it is suitable for injection molding of the melting temperature in 300 DEG C of thermoplastic materials and thermosets below.Above-mentioned heat
Plastic material includes polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), thermoplastic elastomer (TPE) (TPE), polylactic acid
(PLA), acrylonitrile-butadiene-styrene copolymer (ABS), polyformaldehyde (POM), polymethyl methacrylate (PMMA), PC-
ABS, polyamide (PA), polyamide+glass (PA+GF), polybutylene terephthalate (PBT)+glass (PBT+GF), makrolon
(PC).Above-mentioned thermosets includes normal temperature cure organic silica gel and hot setting organic silica gel.In addition, the quick modeling of the present invention
Material mold is also applied for unconventional wax (Wax) injection molding, ceramic powders be injection moulded (CIM) and metal powder injection at
The injection moldings such as type (MIM).
The modularization fast plastic mould of the 3D printing is suitble to be molded on the injection molding machine of 200 tons or less clamp forces,
Manually fast plastic mould is attached on Babyplast miniature injection machines (6 tons of locked mode pressure), it is poly- by running gate system
Mutual-phenenyl two acid bromide two alcohol ester adds 30% glass (PBT+30GF) plastic granule heating melting to be injected into model cavity through nozzle, protects
It is molded after cooling in pressure and mould, mode is blown through air pressure gun is cooled to 25 DEG C or so by ejection system ejecting product.
Production method combination 3D printings and the gold of the modularization fast plastic mould for the 3D printing that this method embodiment provides
Belong to mach advantage, has the characteristics that the manufacturing cycle is short, manufacturing cost is low and injection molding part quality is high, by dividing big mold insert
It is segmented into small mold insert one by one, and small mold insert is mounted on by dismountable mode in center mould bases, makes one of them small edge
Part can carry out quick replacement when damaging to it, without replacing other small mold inserts, avoid traditional die core insert because of local damage
The case where being dropped or replace afterwards increases the service life of mode entirety, reduces the maintenance cost of mold.Meanwhile it will be small
Mold insert is divided into common position mold insert and privileged sites mold insert, and common position mold insert is the plastic insert made of 3D printing, can
Manufacture is completed in several hours or non-working time, accelerates the manufacture process of mold entirety with this, and mold entirety can be reduced
Manufacturing cost, privileged sites mold insert is the metal inserted piece made of machining, and precision is high, high-quality, can be to extend mould
The service life of tool, the quality for ensureing injecting products.The true of high-quality can be obtained by this method by fast injection molding within 48 hours
The complex component of material is a up to more than 100, and this component is suitble to need quickly to obtain the sample of authentic material in product development front end
Plate carries out functional test, including electric property, falls, high temperature resistant and durability.
The embodiment of the present invention is described above in association with attached drawing, but the invention is not limited in above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (10)
1. a kind of modularization fast plastic mould of 3D printing, including mode, which is characterized in that the mode includes 3D printing system
At center mould bases and multiple small mold inserts for being removably mounted in the center mould bases, multiple small mold inserts are in the center
The big mold insert with the model cavity for injection molding is complemented each other to form in mould bases.
2. modularization fast plastic mould according to claim 1, which is characterized in that the center mould bases is equipped with recessed
Chamber, the avris of the big mold insert are mutually abutted by being tightly fixed in the cavity between the adjacent small mold insert.
3. the modularization fast plastic mould of 3D printing according to claim 1, which is characterized in that the small mold insert is logical
Cross integrated formed structure made of 3D printing.
4. the modularization fast plastic mould of 3D printing according to claim 3, which is characterized in that the center mould bases and
The small mold insert is made of one or more in digital ABS material, ultraviolet curable resin material or light sensitivity composite resin material.
5. the modularization fast plastic mould of 3D printing according to claim 1, which is characterized in that the small mold insert includes
Common position mold insert and privileged sites mold insert, the common position mold insert are the plastic insert made of 3D printing, the spy
Different position mold insert is the metal inserted piece made of machining.
6. the modularization fast plastic mould of 3D printing according to claim 5, which is characterized in that the privileged sites edge
Part is the mold insert for being used to form the thin position of bone, the deep position of bone or high details and high-precision position.
7. a kind of production method of modularization fast plastic mould, which is characterized in that include the following steps：
Center mould bases and multiple small mold insert of the S1 processing for forming mode, the center mould bases is made up of 3D printing, multiple
The small mold insert can complement each other to form the big mold insert with the model cavity for injection molding；
Multiple small mold inserts are cooperated and are detachably arranged in center mould bases by S2.
8. the production method of modularization fast plastic mould according to claim 7, which is characterized in that the center mould bases
It is equipped with cavity, the avris of the big mold insert is by being tightly fixed in the cavity, between the adjacent small mold insert mutually
It abuts.
9. the production method of modularization fast plastic mould according to claim 7, which is characterized in that the small mold insert packet
Common position mold insert and privileged sites mold insert are included, the common position mold insert is the plastic insert made of 3D printing, described
Privileged sites mold insert is the metal inserted piece made of machining.
10. the production method of modularization fast plastic mould according to claim 9, which is characterized in that the middle-frame mould
Frame and the common position mold insert by using digital ABS material, thermosetting resin or composite resin material stereolithography at
Type technology (SLA), continuous liquid level manufacturing technology (CLIP), digital light processing forming technique (DLP), more material spraying techniques
(PolyJet) or material jet printing technology (MJP) directly prints.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810112950.1A CN108312432A (en) | 2018-02-05 | 2018-02-05 | A kind of modularization fast plastic mould of 3D printing and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810112950.1A CN108312432A (en) | 2018-02-05 | 2018-02-05 | A kind of modularization fast plastic mould of 3D printing and preparation method thereof |
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| US20020187065A1 (en) * | 2001-06-06 | 2002-12-12 | Amaya Herman Ernesto | Method for the rapid fabrication of mold inserts |
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| CN106079278A (en) * | 2016-08-16 | 2016-11-09 | 深圳市山本光电股份有限公司 | A kind of assembled mould produced for light guide plate |
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2018
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|---|---|---|---|---|
| US20020187065A1 (en) * | 2001-06-06 | 2002-12-12 | Amaya Herman Ernesto | Method for the rapid fabrication of mold inserts |
| CN101370631A (en) * | 2006-01-20 | 2009-02-18 | 宝洁公司 | Modular mold system for production of product families |
| CN106079278A (en) * | 2016-08-16 | 2016-11-09 | 深圳市山本光电股份有限公司 | A kind of assembled mould produced for light guide plate |
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