CN104786477A - Blowback molding method - Google Patents
Blowback molding method Download PDFInfo
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- CN104786477A CN104786477A CN201510149059.1A CN201510149059A CN104786477A CN 104786477 A CN104786477 A CN 104786477A CN 201510149059 A CN201510149059 A CN 201510149059A CN 104786477 A CN104786477 A CN 104786477A
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- blowback
- die
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- forming method
- air
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Abstract
The invention discloses a blowback molding method. The blowback molding method comprises the following steps: firstly providing a male die which is positioned above and is provided with a plurality of protrusions, a female die which is positioned below and is provided with air outlets and an air transmitting channel, and an air pump connected with the air transmitting channel; then downwards punching the female die by the male die, and at the same time, and blowing air, wherein the female die completely fits the male die when a product is molded. Through the adoption of the blowback molding method disclosed by the invention, the die erecting speed of a die is increased, the processing stability is strengthened, the cost of the die is reduced, and the problem that small spare parts are easy to clamp and turn over is solved, so that the market competitiveness of the product is greatly strengthened.
Description
Technical field
The present invention relates to a kind of blowback forming method.
Background technology
Electronics carrying belt with U.S. Advantek and Japanese 3M for industry is leading, and manufacturing technology major part is monopolized by the U.S. and Japan and maintains secrecy, part technology has also applied for patent, domestic manufacturer generally starts to walk all after 2000, substantially the production equipment bought overseas enterprise and eliminate all is adopted, the sub-carrying belt of external process matching die mode electrogenesis in next life, most employing " blowing " or " plastic uptake " molding mode and male model molding mode, the advantage of such molding mode is that technique is simple, die cost is cheap, but process stability is not good, easily cause " broken hole " " overhead kick " and etc. abnormal case, cause SMT produce line " fastener " and etc. great abnormal quality, and the development of existing smart mobile phone and PAD, part is more and more less, shell fragment uses more and more, conventional process can not meet the Production requirement of shell fragment and small part, easy generation upset and the problem such as fastener is bad.
Summary of the invention
The present invention seeks to: a kind of blowback forming method is provided, improve the shut die speed of mould, strengthen the stability of processing procedure, reduce die cost, solve the easy fastener of micro parts and turning problem, thus greatly strengthen the competitiveness of product in market.
Technical scheme of the present invention is: a kind of blowback forming method, its comprise the steps: first to provide be positioned at top and be provided with several projections male model, be positioned at below and the air pump that there is venthole and the master mold of gas distribution channel and be connected with gas distribution channel;
Then adopt male model undershoot master mold to blow, male model of fitting completely during formed product simultaneously.
On the basis of technique scheme, comprise following attached technical scheme further:
Comprise the rubber cushion blocks be arranged between male and female mould and the heating rod being arranged on male and female mould side further.
Described male and female mould adopts SDK high-speed tool steel, and adopts alignment pin to locate.
Described master mold is provided with the die cavity be connected with venthole, and male model is then provided with the protuberance of cavity dimension needed for product and shape, and described projection is positioned at the below of protuberance and spaced arrangement.
Described air pump is provided with time-delay relay to control the time point of blowing, and is provided with air pressure regulator control air blowing air pressure simultaneously.
Described technological parameter is as follows: temperature is 180-205 DEG C, and the heat time is 0.7-1.2 second, and die pressure is 5-7kg/cm
2, blow gas pressure is 4-6kg/cm
2.Temperature when wherein temperature is formed product, the heat time when heat time is formed product.
Advantage of the present invention is:
The present invention improves the shut die speed of mould, strengthens the stability of processing procedure, reduces die cost, solves the easy fastener of micro parts and turning problem, thus greatly strengthens the competitiveness in the market of product.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is STRUCTURE DECOMPOSITION schematic diagram of the present invention.
Fig. 2 is the textural association schematic diagram in the present invention.
Detailed description of the invention
Embodiment: as shown in Figure 1-2, the invention provides a kind of blowback forming method, its comprise the steps: first to provide be positioned at top and be provided with several projections 14 male model 10, be positioned at below and the air pump that there is venthole 24 and the master mold 20 of gas distribution channel 26 and be connected with gas distribution channel 26; Then adopt male model 10 undershoot master mold 20 to blow, male model 10 of fitting completely during formed product simultaneously.Air pump increases time-delay relay simultaneously and also increase air pressure regulator control air blowing air pressure with the time point controlling to blow simultaneously.Raw material 1 is then arranged between male model 10, master mold 20.
Comprise the rubber cushion blocks be arranged between male and female mould 10,20 and the heating rod 30 being arranged on male and female mould 10,20 side further.Male and female mould 10,20 adopts SDK high-speed tool steel, and adopts alignment pin to locate, and the trickle adjustment orientation of micrometer spiral can be adopted to confirm accurately.Rubber cushion blocks makes spacing between male and female mould 10,20 just can coordinate raw thickness, and the impression of product thoroughly solves
Master mold 20 is provided with the die cavity 22 be connected with venthole 24, and male model 10 is then provided with the protuberance 12 of cavity dimension needed for product and shape, and described protruding 14 are positioned at the below of protuberance 12 and spaced arrangement.
Male model 10 also increases cooling water channel passage, adopts temp controlled meter to carry out the control cooled, thus ensures the temperature uniformity of mold temperature.
Described technological parameter is as follows: temperature is 180-205 DEG C, and the heat time is 0.7-1.2 second, and die pressure is 5-7kg/cm
2, blow gas pressure is 4-6kg/cm
2.Temperature when wherein temperature is formed product, the heat time when heat time is formed product.
The present invention has the following advantages:
1) formed product is more stable, owing to adopting male model undershoot master mold to blow simultaneously, and male model of fitting completely during formed product, therefore shaping rear die cavity dimensionally stable is accurate, cavity dimension can be controlled in ± 0.02MM.
2) because of mould undershoot, air blowing is aided with below, the broken hole of " male model " and blowing processing procedure before can not producing.
3) comparatively small embossment can be molded for comparatively miscellaneous goods and prevent fitting turnover.
4) the shut die time reduces 20 minutes than processing procedure before.
5) single hour stand-alone device production efficiency improves more than 20%.
Certain above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations of doing according to the Spirit Essence of main technical schemes of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (6)
1. a blowback forming method, is characterized in that it comprises the steps:
First provide be positioned at top and be provided with several projections male model, be positioned at below and the air pump that there is venthole and the master mold of gas distribution channel and be connected with gas distribution channel;
Then adopt male model undershoot master mold to blow, male model of fitting completely during formed product simultaneously.
2. a kind of blowback forming method as claimed in claim 1, is characterized in that: comprise the rubber cushion blocks be arranged between male and female mould and the heating rod being arranged on male and female mould side further.
3. a kind of blowback forming method as claimed in claim 2, is characterized in that: described male and female mould adopts SDK high-speed tool steel, and adopts alignment pin to locate.
4. a kind of blowback forming method as described in claim 1 or 2 or 3, it is characterized in that: described master mold is provided with the die cavity be connected with venthole, male model is then provided with the protuberance of cavity dimension needed for product and shape, and described projection is positioned at the below of protuberance and spaced arrangement.
5. a kind of blowback forming method as claimed in claim 4, is characterized in that: described air pump is provided with time-delay relay to control the time point of blowing, and is provided with air pressure regulator control air blowing air pressure simultaneously.
6. a kind of blowback forming method as claimed in claim 5, is characterized in that: described technological parameter is as follows: temperature is 180-205 DEG C, the heat time is 0.7-1.2 second, and die pressure is 5-7kg/cm
2, blow gas pressure is 4-6kg/cm
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149059.1A CN104786477A (en) | 2015-03-31 | 2015-03-31 | Blowback molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149059.1A CN104786477A (en) | 2015-03-31 | 2015-03-31 | Blowback molding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104786477A true CN104786477A (en) | 2015-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510149059.1A Pending CN104786477A (en) | 2015-03-31 | 2015-03-31 | Blowback molding method |
Country Status (1)
| Country | Link |
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| CN (1) | CN104786477A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749562A (en) * | 2022-06-14 | 2022-07-15 | 成都飞机工业（集团）有限责任公司 | Air guide system of superplastic forming/diffusion bonding die and manufacturing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4801347A (en) * | 1985-08-30 | 1989-01-31 | Garwood Limited | Method of producing a packaging tray |
| CN2915471Y (en) * | 2006-06-27 | 2007-06-27 | 汕头经济特区众益机械有限公司 | Plastic sheet moulding machine |
-
2015
- 2015-03-31 CN CN201510149059.1A patent/CN104786477A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4801347A (en) * | 1985-08-30 | 1989-01-31 | Garwood Limited | Method of producing a packaging tray |
| CN2915471Y (en) * | 2006-06-27 | 2007-06-27 | 汕头经济特区众益机械有限公司 | Plastic sheet moulding machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749562A (en) * | 2022-06-14 | 2022-07-15 | 成都飞机工业（集团）有限责任公司 | Air guide system of superplastic forming/diffusion bonding die and manufacturing method thereof |
| CN114749562B (en) * | 2022-06-14 | 2022-10-25 | 成都飞机工业（集团）有限责任公司 | Air guide system of superplastic forming/diffusion connecting die and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150722 |
|
| RJ01 | Rejection of invention patent application after publication |