CN106738540A - The processing method of multiple mould high smooth product - Google Patents
The processing method of multiple mould high smooth product Download PDFInfo
- Publication number
- CN106738540A CN106738540A CN201710031488.8A CN201710031488A CN106738540A CN 106738540 A CN106738540 A CN 106738540A CN 201710031488 A CN201710031488 A CN 201710031488A CN 106738540 A CN106738540 A CN 106738540A
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- Prior art keywords
- mould
- prototype
- silica gel
- product
- processing method
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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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/026—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles characterised by the shape of the surface
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/021—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to the processing method of multiple mould high smooth product, it is characterised in that：Including：Prototype, prototype treatment, making silica gel mould, point mould, cast die sinking and refine.The processing method of the multiple mould high smooth product that the present invention is provided, outer surface to prototype carries out bloom treatment, so that the die cavity inner surface of obtained mould is formed and the surface identical structure obtained after bloom treatment, so that the outer surface of the product after cast directly forms the requirement of high glossy, and by setting wavy die joint, improved using the wavy positioning precision for carrying out position assurance die cavity after die sinking and matched moulds, prevent from causing product surface the structures such as unnecessary rib occur, increased product percent of pass, and Silicon moulds are a kind of trial-production moulds, for making stage die or small lot mould, fabrication cycle is short, low cost, elasticity is good, workpiece is easy to the demoulding, replicate, client one can be provided inexpensive, it is time saving, easily sample making approach.
Description
Technical field
The present invention relates to silica gel mould field, particularly a kind of processing method of multiple mould high smooth product.
Background technology
Nowadays, injection mold is one of very heavy production model of accounting in industrial production, typically all according to product system
Make mould, and by being processed after mold injection, to reach size and roughness required by product etc., particularly externally
The product of surface requirements bloom, is all after the completion of product is poured into a mould, to be obtained by polishing and spraying lac varnish high, increased post processing
Workload, and the product of spray painting is not allowed for some products (such as medical class), it is more difficult to directly obtain recovery mould product high,
Secondly, when being produced on a small quantity for a certain product needed, very waste of resource is cast using materials such as cast irons.
The content of the invention
In order to solve the above-mentioned technical problem providing one kind can realize that injecting products outer surface is obtained by need not spraying
Processing method that obtain bloom effect and that the multiple mould high smooth product of a small amount of production can be directed to.
A kind of processing method of multiple mould high smooth product, it is characterised in that：Including：
S1, prototype：Shape fabricating prototype according to product to be formed；
S2, prototype treatment：The outer surface of the prototype to being produced in S1 carries out bloom treatment；
S3, making silica gel mould：Prototype in S2 carries out silica gel mould cast；
S4, point mould：The mould that will be made in S3 cuts open, and takes out prototype, and open up cast gate and gas port；
S5, cast die sinking：The mould matched moulds that will be cut open in S4, and material using product to be formed poured into a mould, solidifies
And die sinking, product blank to be formed is obtained；
S6, refine：Obtained product blank to be formed is removed the behaviour of the mouth of a river, flash and polishing after to being molded in S5
Make.
In S4, the die joint of mould is waveform near the part of the mould lateral surface.
In S1, judge whether product to be formed has back-off structure, prototype is disassembled using ABS if with back-off structure
Machining afterwards is made or is obtained by 3D printing, conversely, prototype is then using acrylic material or transparent PC material CNC processing systems
Into.
When machining is made or is obtained by 3D printing after prototype is disassembled using ABS, the prototype outer surface being made is carried out
Refine, spray lac varnish high and polishing.
When prototype is made of acrylic material or transparent PC material, the prototype outer surface being made is processed by shot blasting.
In S3, the preparation method of silica gel mould is comprised the following steps：
A, the position that die joint, cast gate, exhaust outlet are set according to prototype structure；
B, calculating silica gel consumption, and choose corresponding frame；
C, silica gel quantitative after calculating is stirred counterclockwise；
D, to the silica gel vacuumizing and defoaming after stirring, and continue first time period；
E, will vacuumize after silica gel pour into frame at twice, and by original after first time, silica gel to be poured into the frame
Type is put into frame, and is put into core pulling rod alignment pin and stirrup simultaneously；
F, the frame to having been poured into silica gel are vacuumized, and continue second time period；
G, the frame that will be vacuumized in e are vented and are solidified, and are made silica gel mould.
In b, curing agent is added during being stirred to silica gel, and mixing time is 2min-2.5min.
The curing agent is 1 with the weight ratio of the silica gel:10.
In c, the scope of the first time period is 8min-12min；In e, the scope of the second time period is
10min-15min。
In f, the temperature range of solidification is 25 DEG C -70 DEG C.
Material in S5 and using product to be formed is poured into a mould, solidified and die sinking includes：
1) preheated mold, heats after the multiple mould of the mould that will be made in S4；
2) profile is fixed, to the outer surface coating adhesive tape paper of the mould after 1) middle preheating；
3) material process, the raw material for treating shaped article are stirred deaeration treatment；
4) pour into a mould, by deaeration after product to be formed raw material injection preheating after mould in；
5) product solidification, detection cast rear mold inside whether there is bubble, is heating and curing if without if；
6) mold, molded by the die joint for setting, take out workpiece.
The processing method of the multiple mould high smooth product that the present invention is provided, the outer surface to prototype carries out bloom treatment so that system
The die cavity inner surface of mould formed and the surface identical structure that obtains after bloom treatment so that product after cast it is outer
Surface directly forms the requirement of high glossy, and by setting wavy die joint, position assurance is carried out using wavy
Positioning precision of the die cavity after die sinking and matched moulds is improved, and prevents from causing product surface the structures such as unnecessary rib occur, increased product
Product qualification rate, and Silicon moulds are a kind of trial-production moulds, and for making stage die or small lot mould, fabrication cycle is short, cost
Low, elasticity is good, and workpiece is easy to the demoulding, replicates, using the teaching of the invention it is possible to provide client one is inexpensive, time saving, easily sample making approach.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical scheme will be carried out below
Detailed description.Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are resulting on the premise of creative work is not made to be owned
Other embodiment, belongs to the scope that the present invention is protected.
A kind of processing method of multiple mould high smooth product, it is characterised in that：Including：
S1, prototype：Shape fabricating prototype according to product to be formed, prototype requirement lines cleaning, surface smoothing, and
The size of prototype should be equal sized with product to be formed.
S2, prototype treatment：The outer surface of the prototype to being produced in S1 carries out bloom treatment；
S3, making silica gel mould：Prototype in S2 carries out silica gel mould cast；
S4, point mould：The mould that will be made in S3 cuts open, and takes out prototype, and open up cast gate and gas port；
S5, cast die sinking：The mould matched moulds that will be cut open in S4, and material using product to be formed poured into a mould, solidifies
And die sinking, product blank to be formed is obtained；
S6, refine：Obtained product blank to be formed is removed the behaviour of the mouth of a river, flash and polishing after to being molded in S5
Make.
In S4, the die joint of mould is waveform near the part of the mould lateral surface.
When machining is made or is obtained by 3D printing after prototype is disassembled using ABS, the prototype outer surface being made is carried out
Refine, spray lac varnish high and polishing.
When prototype is made of acrylic material or transparent PC material, the prototype outer surface being made is processed by shot blasting.
In S3, the preparation method of silica gel mould is comprised the following steps：
A, the position that die joint, cast gate, exhaust outlet are set according to prototype structure；
B, calculating silica gel consumption, and choose corresponding frame；
C, silica gel quantitative after calculating is stirred counterclockwise；
D, to the silica gel vacuumizing and defoaming after stirring, and continue first time period；
E, will vacuumize after silica gel pour into frame at twice, and by original after first time, silica gel to be poured into the frame
Type is put into frame, and is put into core pulling rod alignment pin and stirrup simultaneously；
F, the frame to having been poured into silica gel are vacuumized, and continue second time period；
G, the frame that will be vacuumized in e are vented and are solidified, and are made silica gel mould.
In b, curing agent is added during being stirred to silica gel, and mixing time is 2min-2.5min.
The curing agent is 1 with the weight ratio of the silica gel:10.
In c, the scope of the first time period is 8min-12min；In e, the scope of the second time period is
10min-15min。
In f, the temperature range of solidification is 25 DEG C -70 DEG C, and solidification includes both of which：Normal temperature cure and heating cure,
The normal temperature cure is to carry out spontaneous curing in 25 DEG C -30 DEG C of temperature, and the heating cure is at 30 DEG C -70 DEG C in temperature
At a temperature of carry out heating cure, in heating cure, when temperature is more than 40 DEG C, silica gel solidification quickening can expand, and outside nothing
Method produces deformation, and stress cannot discharge, and can have certain influence, therefore preferably normal temperature cure on cavity dimension after die sinking.
Material in S5 and using product to be formed is poured into a mould, solidified and die sinking includes：
1) preheated mold, heats after the multiple mould of the mould that will be made in S4, and preheating temperature scope is 40 DEG C -80 DEG C, during preheating
Between scope be 40min-80min；
2) profile is fixed, to the outer surface coating adhesive tape paper of the mould after 1) middle preheating, the notice in coating adhesive tape paper
Degree, that is, ensure that mold outer surface does not produce deformation, will also ensure that the cladding power of adhesive tape can be afforded on mold outer surface, leads to
Cross coating adhesive tape paper and ensure that mould is not subjected to displacement and deformation in casting process；
3) material process, the raw material for treating shaped article are stirred deaeration treatment, and inclined heated plate scope is 10min-
20min；
4) pour into a mould, by deaeration after product to be formed raw material injection preheating after mould in；
5) product solidification, detection cast rear mold inside whether there is bubble, is heating and curing if without if, and the heating is consolidated
It is 70 DEG C -80 DEG C to change temperature range, and the heat time is selected according to the raw material of product to be formed, and scope is 1h-2h；
6) mold, molded by the die joint for setting, take out workpiece.
Embodiment 1
It is processed to be formed and product design size identical prototype to be formed by the way of acrylic is by CNC；
Above-mentioned prototype is processed by shot blasting, it is preferred that polishing is transparent effect；
Selection size carries out the making of silica gel mould with the mould housing that prototype size matches；
Being calculated according to above-mentioned prototype needs the consumption of silica gel, and the silica gel in consumption is stirred, it is preferred that every
5 kilograms of silica gel are stirred counterclockwise for portion, and mixing time is 2min-2.5min, is vacuumized after stirring, when vacuumizing
Between be 8min-12min；
Silicon gel part after above-mentioned vacuumizing is poured into the bottom that the outer inframe of mould forms mould, above-mentioned prototype is placed on
In the silica gel for pouring into, and ensure that the week side of boss of prototype is not contacted with mould frame, be put into core pulling rod, alignment pin and stirrup, slowly
By the remaining silica gel outer inframe of injection mould, and set at laminating mould housing inner surface when silica gel reaches the position of setting
Waveform parting line, for realizing being molded by wavy die joint；
Mould frame to being filled up completely with silica gel is vacuumized, and the time is 10min-15min, is solidified after exhaust；
Solidification temperature chooses 25 DEG C -30 DEG C (i.e. room temperatures) makes silica gel spontaneous curing；
Silica gel mould is molded according to above-mentioned waveform parting line, is taken out prototype and is opened cast gate；
Wave during according to die sinking carries out matched moulds, and silica gel mould is put into baking box, and oven temperature is set in 80 DEG C,
Preheating 1 hour；
Silica gel mould after preheating is taken out, outer surface coating adhesive tape paper, and by the to be formed of the treatment of agitated deaeration
The raw material of product are slowly injected into silica gel mould, and ensure that the gas in silica gel mould is all discharged；
After the silica gel mould that will be poured detects no bubble, it is put into baking box, is toasted 1 hour at 80 DEG C；
Molded after silica gel mould cooling after to be baked, and semi-finished product are removed with the mouth of a river, flash, polishing etc.
Science and engineering sequence obtains workpiece to be formed.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of processing method of multiple mould high smooth product, it is characterised in that：Including：
S1, prototype：Shape fabricating prototype according to product to be formed；
S2, prototype treatment：The outer surface of the prototype to being produced in S1 carries out bloom treatment；
S3, making silica gel mould：Prototype in S2 carries out silica gel mould cast；
S4, point mould：The mould that will be made in S3 cuts open, and takes out prototype, and open up cast gate and gas port；
S5, cast die sinking：The mould matched moulds that will be cut open in S4, and material using product to be formed poured into a mould, solidified and opened
Mould, is obtained product blank to be formed；
S6, refine：Obtained product blank to be formed is removed the operation of the mouth of a river, flash and polishing after to being molded in S5.
2. the processing method of multiple mould high smooth product according to claim 1, it is characterised in that：In S4, the parting of mould
Face is waveform near the part of the mould lateral surface.
3. the processing method of multiple mould high smooth product according to claim 1, it is characterised in that：In S1, judge to be formed
Whether product has back-off structure, is machined after prototype if having back-off structure is disassembled using ABS and is made or by 3D printing
Obtain, conversely, prototype is then processed into using acrylic material or transparent PC material CNC.
4. the processing method of multiple mould high smooth product according to claim 3, it is characterised in that：When prototype is disassembled using ABS
When machining is made or is obtained by 3D printing afterwards, the prototype outer surface being made is refined, is sprayed lac varnish high and polishing.
5. the processing method of multiple mould high smooth product according to claim 3, it is characterised in that：When prototype uses acrylic material
When material or transparent PC material are made, the prototype outer surface being made is processed by shot blasting.
6. the processing method of multiple mould high smooth product according to claim 1, it is characterised in that：In S3, silica gel mould
Preparation method is comprised the following steps：
A, the position that die joint, cast gate, exhaust outlet are set according to prototype structure；
B, calculating silica gel consumption, and choose corresponding frame；
C, silica gel quantitative after calculating is stirred counterclockwise；
D, to the silica gel vacuumizing and defoaming after stirring, and continue first time period；
E, will vacuumize after silica gel pour into frame at twice, and prototype is put after first time, silica gel to be poured into the frame
Enter in frame, and be put into core pulling rod alignment pin and stirrup simultaneously；
F, the frame to having been poured into silica gel are vacuumized, and continue second time period；
G, the frame that will be vacuumized in e are vented and are solidified, and are made silica gel mould.
7. the processing method of multiple mould high smooth product according to claim 6, it is characterised in that：In c, to silica gel stirring
During add curing agent, and mixing time is 2min-2.5min.
8. the processing method of multiple mould high smooth product according to claim 6, it is characterised in that：In d, the very first time
The scope of section is 8min-12min；In f, the scope of the second time period is 10min-15min.
9. the processing method of multiple mould high smooth product according to claim 6, it is characterised in that：In g, the temperature model of solidification
Enclose is 25 DEG C -70 DEG C.
10. the processing method of multiple mould high smooth product according to claim 1, it is characterised in that：In S5 and using treating into
The material of type product poured into a mould, solidify and die sinking includes：
1) preheated mold, heats after the multiple mould of the mould that will be made in S4；
2) profile is fixed, to the outer surface coating adhesive tape paper of the mould after 1) middle preheating；
3) material process, the raw material for treating shaped article are stirred deaeration treatment；
4) pour into a mould, by deaeration after product to be formed raw material injection preheating after mould in；
5) product solidification, detection cast rear mold inside whether there is bubble, is heating and curing if without if；
6) mold, molded by the die joint for setting, take out workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031488.8A CN106738540A (en) | 2017-01-17 | 2017-01-17 | The processing method of multiple mould high smooth product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031488.8A CN106738540A (en) | 2017-01-17 | 2017-01-17 | The processing method of multiple mould high smooth product |
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| CN106738540A true CN106738540A (en) | 2017-05-31 |
Family
ID=58946022
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710031488.8A Pending CN106738540A (en) | 2017-01-17 | 2017-01-17 | The processing method of multiple mould high smooth product |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211670A (en) * | 2021-11-09 | 2022-03-22 | 上汽大众汽车有限公司 | High-precision trial production method of automobile model lamp |
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| CN105643864A (en) * | 2016-02-02 | 2016-06-08 | 上海联泰科技股份有限公司 | Shoe making method |
| CN106142414A (en) * | 2016-07-29 | 2016-11-23 | 柳州快速制造工程技术有限公司 | A kind of method utilizing silica gel mould manufactured parts |
| CN106182509A (en) * | 2016-08-31 | 2016-12-07 | 英诺莱比（北京）科技有限公司 | Use the operational approach of silica gel mould post forming |
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2017
- 2017-01-17 CN CN201710031488.8A patent/CN106738540A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964894A (en) * | 2014-05-05 | 2014-08-06 | 上海高诚创意科技集团有限公司 | Ceramic wine bottle green body embedding method |
| CN105538723A (en) * | 2016-02-02 | 2016-05-04 | 上海联泰科技股份有限公司 | Shoemaking method based on 3D printing |
| CN105643864A (en) * | 2016-02-02 | 2016-06-08 | 上海联泰科技股份有限公司 | Shoe making method |
| CN106142414A (en) * | 2016-07-29 | 2016-11-23 | 柳州快速制造工程技术有限公司 | A kind of method utilizing silica gel mould manufactured parts |
| CN106182509A (en) * | 2016-08-31 | 2016-12-07 | 英诺莱比（北京）科技有限公司 | Use the operational approach of silica gel mould post forming |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211670A (en) * | 2021-11-09 | 2022-03-22 | 上汽大众汽车有限公司 | High-precision trial production method of automobile model lamp |
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Application publication date: 20170531 |