CN108016022A - Automobile spoiler blow molding process with hollow hole - Google Patents
Automobile spoiler blow molding process with hollow hole Download PDFInfo
- Publication number
- CN108016022A CN108016022A CN201711455086.7A CN201711455086A CN108016022A CN 108016022 A CN108016022 A CN 108016022A CN 201711455086 A CN201711455086 A CN 201711455086A CN 108016022 A CN108016022 A CN 108016022A
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- CN
- China
- Prior art keywords
- time
- hollow hole
- blow
- once
- spoiler
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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
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3055—Cars
- B29L2031/3058—Spoilers
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of automobile spoiler blow molding process with hollow hole, comprise the technical steps that：Raw material stoving, feeding, raw material heating, Screw Extrusion, die sinking, assembly part, once molding, air blowing, once exhaust, secondary air blowing, secondary exhaust, die sinking.Blowing processing of the present invention for the spoiler for having hollow hole, temperature, pressure make an adjustment, and air blowing, exhaust, air blowing, the technique that is vented again is taken to reach the condition of formed product, the middle modeling structure of spoiler can be so allowed to be substantially filled to material, ensure special construction thickness, avoid this spoiler with hollow hole and occur that material cannot be sufficient filling with or lack the defects of material wall is thin using normal process flow.
Description
Technical field
The present invention relates to the automobile spoiler blow molding process with hollow hole.
Background technology
The product temperature that the blow molding process of automobile spoiler normally produces at present is all 210 DEG C or so, compressed air
The general pressure for using 6kg, i.e. 0.6Mpa, is to blow after mold clamping, then terminates and deflate, be molded and terminate.But this side
Formula is feasible for the automobile spoiler of ordinary construction, but if for special designing moulding, kinesthesia it is strong with hollow hole
Spoiler, still then occurs that material cannot be sufficient filling with or lack the defects of material wall is thin using this blow molding process.Application publication number
For the patent of CN104827647A：A kind of forming technology of automobile spoiler, including following process：Raw material preparation, once heating,
The cooling of raw material constant temperature, reheating, blow molding, hot trimming.The automobile spoiler of manufacture not only increases production efficiency, reduces
Production cost, and product resistance is greatly improved, but still once to blow exhaust, it is impossible to suitable for special construction spoiler
Manufacture processing.Application publication number is the patent of CN106741227A, and rapidly moulding process is the blowing of its high pressure：1) in blow moulding machine
Middle charging, and when raw material stoving 4 is small, when allowing first screw rod low-speed running 0.5 is small in blow moulding machine, then uses screw rod shearing melt；2)
Mould is molded, die head starts material extrusion, and the rotating speed control of extruder is at 14 ± 5 revs/min, and mold temperature is 35 ± 10 DEG C, then
Molding；3) stainless steel blow needle is then entered into mould, blow moulding machine starts to blow, and is blow molded 90 ± 10 seconds time, blow gas pressure control
In 27 ± 5bar；4) then to the nitrogen that -30 DEG C are passed through in mould, rapidly entered using the power of 30 kilograms of high pressure gas in mould
Product is set quickly to cool down and be molded；5) blow moulding machine is vented, and product is taken out in then die sinking.It is also once to blow exhaust, it is impossible to is applicable in
Processed in the manufacture of special construction spoiler, using the spoiler such as spoiler with hollow hole of this technique processing special construction
Occur that material cannot be sufficient filling with or lack the defects of material wall is thin.
The content of the invention
It is an object of the present invention to overcome defect existing in the prior art, there is provided the automobile spoiler with hollow hole is blown
Modeling technique, for the blowing processing for the spoiler for having hollow hole, temperature, pressure makes an adjustment the present invention, can allow spoiler
Middle modeling structure be substantially filled to material, ensure special construction thickness, avoid this spoiler with hollow hole and adopt
Occur that material cannot be sufficient filling with or lack the defects of material wall is thin with normal process flow.
To achieve the above object, the technical scheme is that a kind of automobile spoiler blowing work with hollow hole of design
The process of assembly part after skill, including die sinking, further includes following processing step successively：Raw material stoving, feeding, raw material heating, screw rod
Extrusion, molding, once blow, once exhaust, secondary air blowing, secondary exhaust, die sinking.Take air blowing, exhaust, air blowing, be vented again
Technique reach the condition of formed product, can so allow the middle part modeling structure of spoiler to be substantially filled to material, ensure
Special construction thickness, avoids this spoiler with hollow hole and occurs that material cannot be filled out fully using normal process flow
Fill or lack the defects of material wall is thin.Hollow hole on automobile spoiler is formed by setting raised on mould, and in order to ensure hollow out
The thickness (i.e. in order to preferably form the hollow hole of spoiler) of the spoiler on hole periphery is using the process for blowing exhaust twice.
Further technical solution is that in raw material stoving process, modified propylene nitrile-butadiene-styrene plastics are added
Enter in dewaterer and dry, drying temperature is set to 85 DEG C~100 DEG C；The trade mark of modified propylene nitrile-butadiene-styrene plastics is Korea Spro
State's brocade lake HR181.
Further technical solution is that in upper material process, the raw material after drying are transported to blowing by feeder
In the hopper of machine.
Further technical solution is that temperature is 190 ± 20 DEG C everywhere in blow moulding machine die cavity, 600 ± 100r/ of screw speed
Min, total blowing time 4min ± 20s, the pressure for compressed air used of blowing are 1.2 ± 0.3MPa.Using heating collar into
Enter the heating of the plastic pellet raw material before blow moulding machine.Extruder be mouth mold gap can adjust automatically extruder.
Further technical solution is that temperature is 190 DEG C everywhere in blow moulding machine die cavity, and screw speed 600r/min, always blow
Mould time 4min, the pressure for compressed air used of blowing is 1.2MPa.
Further technical solution is that, to expecting embryo blowing moulding after molding, the time once blown is 70~120s, once
The time of exhaust is 15~45s, and the time of secondary air blowing is 60~100s, and the time of secondary exhaust is 15~45s.
It is 90s the times once blown that further technical solution, which is, and the time being once vented is 30s, secondary air blowing
Time is 90s, and the time of secondary exhaust is 30s.
It is 120s the times once blown that further technical solution, which is, and the time being once vented is 30s, secondary air blowing
Time be 60s, the time of secondary exhaust is 30s.
The advantages of the present invention are：The present invention is processed for the blowing for the spoiler for having hollow hole, temperature,
Pressure makes an adjustment, and takes air blowing, exhaust, air blowing, the technique that is vented again to reach the condition of formed product, such energy
Enough allow the middle modeling structure of spoiler to be substantially filled to material, ensure special construction thickness, avoid and this carry hollow hole
Spoiler using normal process flow occur material cannot be sufficient filling with or lack material wall it is thin the defects of.
Embodiment
With reference to embodiment, the embodiment of the present invention is further described.Following embodiments are only used for more
Add and clearly demonstrate technical scheme, and be not intended to limit the protection scope of the present invention and limit the scope of the invention.
Embodiment one：
The present invention is the automobile spoiler blow molding process with hollow hole, is comprised the technical steps that：Raw material stoving, feeding,
Raw material heating, Screw Extrusion, die sinking, assembly part, once molding, air blowing, once exhaust, secondary air blowing, secondary exhaust, die sinking.
In raw material stoving process, modified propylene nitrile-butadiene-styrene plastics are added in dewaterer and are dried, drying temperature is set to
85 DEG C~100 DEG C；The trade mark of modified propylene nitrile-butadiene-styrene plastics is South Korea's brocade lake HR181.In upper material process, lead to
Cross feeder the raw material after drying are transported in the hopper of blow moulding machine.Temperature is 190 DEG C everywhere in blow moulding machine die cavity, screw rod
Rotating speed 600r/min, total blowing time 4min, the pressure for compressed air used of blowing are 1.2MPa.Blow after molding to material embryo
Shaping, the time once blown are 90s, and the time being once vented is 30s, and time of secondary air blowing is 90s, secondary exhaust when
Between be 30s.
Embodiment two：
With being different only in that for embodiment one, the time once blown is 120s, and the time being once vented is 30s, secondary
The time of air blowing is 60s, and the time of secondary exhaust is 30s.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. the automobile spoiler blow molding process with hollow hole, it is characterised in that include the process of assembly part after die sinking, further include as
Under processing step successively：Raw material stoving, feeding, raw material heating, Screw Extrusion, molding, once blow, once exhaust, secondary blow
Gas, secondary exhaust, die sinking.
2. the automobile spoiler blow molding process with hollow hole as claimed in claim 1, it is characterised in that in raw material stoving process
In, modified propylene nitrile-butadiene-styrene plastics are added in dewaterer and are dried, drying temperature is set to 85 DEG C~100 DEG C；Change
The trade mark of property acrylonitrile-butadiene-styrene (ABS) plastics is South Korea's brocade lake HR181.
3. the automobile spoiler blow molding process with hollow hole as claimed in claim 2, it is characterised in that in upper material process,
The raw material after drying are transported in the hopper of blow moulding machine by feeder.
4. the automobile spoiler blow molding process with hollow hole as claimed in claim 3, it is characterised in that each in blow moulding machine die cavity
It is 190 ± 20 DEG C to locate temperature, and 600 ± 100r/min of screw speed, total blowing time 4min ± 20s, compression used of blowing are empty
The pressure of gas is 1.2 ± 0.3MPa.
5. the automobile spoiler blow molding process with hollow hole as claimed in claim 4, it is characterised in that each in blow moulding machine die cavity
It is 190 DEG C to locate temperature, and screw speed 600r/min, total blowing time 4min, the pressure for compressed air used of blowing are
1.2MPa。
6. the automobile spoiler blow molding process with hollow hole as claimed in claim 5, it is characterised in that blown after molding material embryo
Gas is molded, and the time once blown be 70~120s, and the time being once vented is 15~45s, and time of secondary air blowing is 60~
100s, the time of secondary exhaust is 15~45s；Blow between deairing step without interval time.
7. the automobile spoiler blow molding process with hollow hole as claimed in claim 6, it is characterised in that the time once blown
For 90s, the time being once vented is 30s, and the time of secondary air blowing is 90s, and the time of secondary exhaust is 30s.
8. the automobile spoiler blow molding process with hollow hole as claimed in claim 6, it is characterised in that the time once blown
For 120s, the time being once vented is 30s, and the time of secondary air blowing is 60s, and the time of secondary exhaust is 30s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711455086.7A CN108016022A (en) | 2017-12-28 | 2017-12-28 | Automobile spoiler blow molding process with hollow hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711455086.7A CN108016022A (en) | 2017-12-28 | 2017-12-28 | Automobile spoiler blow molding process with hollow hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108016022A true CN108016022A (en) | 2018-05-11 |
Family
ID=62072183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711455086.7A Pending CN108016022A (en) | 2017-12-28 | 2017-12-28 | Automobile spoiler blow molding process with hollow hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108016022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328829A (en) * | 2019-05-22 | 2019-10-15 | 江阴名鸿车顶系统有限公司 | A kind of spoiler bloom blow molding process |
| CN113459475A (en) * | 2021-07-02 | 2021-10-01 | 佛山市三水兆丰和塑料制品有限公司 | Blow molding process for heating bottle with insert |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1654188A (en) * | 2005-02-21 | 2005-08-17 | 江南模塑科技股份有限公司 | Automobile safety spoiler hollow blow-molding technique and products thereof |
| CN107031023A (en) * | 2017-04-24 | 2017-08-11 | 淄博恒塑塑料有限公司 | A kind of preparation method for exempting from spray car empennage |
| CN107042624A (en) * | 2017-03-28 | 2017-08-15 | 东莞市利通行汽车配件有限公司 | The preparation method of automobile spoiler |
-
2017
- 2017-12-28 CN CN201711455086.7A patent/CN108016022A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1654188A (en) * | 2005-02-21 | 2005-08-17 | 江南模塑科技股份有限公司 | Automobile safety spoiler hollow blow-molding technique and products thereof |
| CN107042624A (en) * | 2017-03-28 | 2017-08-15 | 东莞市利通行汽车配件有限公司 | The preparation method of automobile spoiler |
| CN107031023A (en) * | 2017-04-24 | 2017-08-11 | 淄博恒塑塑料有限公司 | A kind of preparation method for exempting from spray car empennage |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328829A (en) * | 2019-05-22 | 2019-10-15 | 江阴名鸿车顶系统有限公司 | A kind of spoiler bloom blow molding process |
| CN110328829B (en) * | 2019-05-22 | 2021-11-02 | 江阴名鸿车顶系统有限公司 | Spoiler highlight blow molding process |
| CN113459475A (en) * | 2021-07-02 | 2021-10-01 | 佛山市三水兆丰和塑料制品有限公司 | Blow molding process for heating bottle with insert |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180511 |
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| RJ01 | Rejection of invention patent application after publication |