CN1217250A - Gas-jetting moulding machine - Google Patents
Gas-jetting moulding machine Download PDFInfo
- Publication number
- CN1217250A CN1217250A CN98123417A CN98123417A CN1217250A CN 1217250 A CN1217250 A CN 1217250A CN 98123417 A CN98123417 A CN 98123417A CN 98123417 A CN98123417 A CN 98123417A CN 1217250 A CN1217250 A CN 1217250A
- Authority
- CN
- China
- Prior art keywords
- gas
- compensated cavity
- resin
- chamber
- cavity
- Prior art date
- 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.)
- Pending
Links
- 238000000465 moulding Methods 0.000 title claims description 16
- 239000011347 resin Substances 0.000 claims description 32
- 229920005989 resin Polymers 0.000 claims description 32
- 239000007921 spray Substances 0.000 claims description 11
- 238000002347 injection Methods 0.000 abstract 3
- 239000007924 injection Substances 0.000 abstract 3
- 238000001746 injection moulding Methods 0.000 abstract 1
- 230000002950 deficient Effects 0.000 description 10
- 238000005507 spraying Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
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
- 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
- B29C45/1703—Introducing an auxiliary fluid into the mould
- B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
- B29C45/1711—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles and removing excess material from the mould cavity by the introduced fluid, e.g. to an overflow cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
-
- 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
- B29C45/0046—Details relating to the filling pattern or flow paths or flow characteristics of moulding material in the mould cavity
- B29C2045/0049—Details relating to the filling pattern or flow paths or flow characteristics of moulding material in the mould cavity the injected material flowing against a mould cavity protruding part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A gas injection mold is disclosed, an auxiliary cavity is provided at one side of the cavity so as to house an overflow quantity within the cavity, in which control means is set on the auxiliary cavity so as to optionally vary the use volume of the auxiliary cavity. So prevent in advance an appearance marred by traces of a flow of injection in the surface of an injection molded article and obviate the need of rework of mold during the period of gas injection molding.
Description
The present invention relates to gas-jetting moulding machine, overflow to the amount of resin in the chamber when particularly spraying, on the moulded product outer surface, do not form the gas-jetting moulding machine of defective, do not cause the trouble of the additional finishing on mechanograph by correct control gas.
Fig. 1 illustrates conventional gas-jetting moulding machine 10, comprises strong bonded cope match-plate pattern 11 and lower bolster 12 together.
As shown in Figure 2, the air blades that goods 20 are air-conditioners that the gas-jetting moulding machine of this spline structure 10 forms, it is used to control the direction of air of discharging by the outlet of the indoor set of air-conditioner (not shown).
If molten resin is full of chamber 13 by geat 15, and if gas jet, some resins in chamber 13 are overflow, and because the high pressure by auxiliary geat 16 gas jet is discharged to compensated cavity 17.Therefore, the molten resin of staying chamber 13 is used to form mechanograph 20 1 preset thickness, and forms an interior space by gas jet on goods 20.
In the prior art, the overflow resin that the high pressure of gas jet produces is discharged to compensated cavity 17 by auxiliary geat 16, prevents to form defective at mechanograph 20 outer surfaces.Yet the compensated cavity 17 of conventional moulding press has a prescribed space area of using for the overflow resin, makes the amount of resin that is not easy correctly to control overflow when gas sprays, thereby, on mechanograph, stay defective.Therefore, when gas sprays, need by additional finishing, control overflows to the amount of resin of compensated cavity, is determined the presumptive area that overflows to compensated cavity up to correct amount of resin always.
The present invention is intended to address the above problem, the purpose of this invention is to provide a gas-jetting moulding machine, it has the control device that is positioned at compensated cavity, be used for freely changing the zone in the used chamber of the control of the amount of resin of overflow when gas sprays, thereby prevent the trouble of additional finishing, and prevent from product external surfaces, to form the possibility of defective by the overflow resin.
In order to reach purpose of the present invention, the gas-jetting moulding machine that provides has a compensated cavity that is formed on a side in a chamber, when gas sprays by geat, molten resin is overflowed from described chamber, wherein, compensated cavity has control device, is used for freely changing the zone that is used to control the overflow resin when gas sprays.
Detailed description with reference in conjunction with the accompanying drawings will be better appreciated by characteristic of the present invention and purpose.
Fig. 1 is conventional gas-jetting moulding machine profile;
Fig. 2 is that the outer surface of product molded on the gas-jetting moulding machine is because the perspective view of the defective that the resin overflow produces;
Fig. 3 is a gas-jetting moulding machine profile of the present invention;
Fig. 4 is the perspective view according to the control device of the lower bolster of gas-jetting moulding machine of the present invention and compensated cavity, and control device freely changes the zone of the compensated cavity that uses in control overflow amount of resin.
Preferred embodiment of the present invention will be described in detail by reference to the drawing.For the simplification of diagram and explanation, in all figure, identical number parts identical with symbolic representation or that be equal to, and omit unnecessary explanation.
Shown in Fig. 3 and 4, when cope match-plate pattern 41 and lower bolster 42 combined, moulding press 40 of the present invention formed the chamber 43 at interior center; A runner 44 at one end is used for making molten resin energy inflow chamber 43 when gas jet; With a narrow geat 45, it allows molten resin to be incorporated into chamber 43 by wasteway 44 fast in the chamber 43 and 44 of runners.
In addition, a compensated cavity 47 is formed on bolster 41 and 42, is used for when gas sprays, and prevents that the resin of overflow from forming defective, and auxiliary geat 46 is formed on the position relative with runner 44.Compensated cavity 47 has control device 50, is used for freely changing holding the used zone of overflow resin.
Describe the course of work of the present invention and effect below in detail.As shown in Figure 3, if the resin of fusing is full of in the chamber 43 that bolster 41 and 42 is closely linked by geat 45, if gas is injected to the resin that is full of in chamber 43, molten resin in chamber 43 is because the high pressure of gas jet, spray all directions fast, 43 inwall evenly distributes in the chamber, thereby forms predetermined thickness and an interior space of mechanograph.
In addition, gas jet pressure makes from the chamber 43 to overflow molten resin, is discharged to compensated cavity 47 separately by the auxiliary geat 46 on geat 45 relative positions, thereby prevents to form defective on the outer surface of mechanograph 20.
If defective is formed on the outer surface of mechanograph 20 when gas sprays, by regulating a zone of compensated cavity 47, the amount of resin of overflow is controlled.Thereby the control bolt 51 of control device 50 is rotated, and promotes or be reduced in the height control piece 52 in the compensated cavity 47.
At this moment, as shown in Figure 3, height control piece 52, overflow amount of resin when spraying according to gas moves both vertically in compensated cavity 47, increases or reduce the zone of compensated cavity 47, thereby prevent from the outer surface of mechanograph 20, to form defective, avoid the additional finishing of trouble of the prior art.
Find out from the above description obviously, the advantage of gas-jetting moulding machine of the present invention is, include control device, be used for freely changing the used space of molten resin amount of the central control of compensated cavity overflow, thereby the resin that prevents overflow produces defective on the mechanograph outer surface, avoids gas to spray the trouble of the additional finishing of back on mechanograph.
Claims (4)
1. a gas-jetting moulding machine has a compensated cavity that forms chamber one side, when gas sprays by geat, molten resin is overflowed from described chamber, wherein, compensated cavity has control device, be used for when gas sprays, freely changing the zone of the compensated cavity that the overflow resin is controlled.
2. machine according to claim 1, wherein control device comprises:
A control bolt is screwed by the hole that forms in compensated cavity; And
A height control piece is fixed on an end of the control bolt in the compensated cavity, is used to increase and reduce the compensated cavity zone that will use.
3. machine according to claim 2 is wherein controlled the head that bolt has a multi-angle, so that tighten easily by the instrument of spanner class.
4. machine according to claim 2, when wherein the height control piece was installed, its intimate ground was in sliding mode along the inner surface setting of compensated cavity 47.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970054948A KR100248773B1 (en) | 1997-10-24 | 1997-10-24 | A molder of gas injection molding |
| KR54948/97 | 1997-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1217250A true CN1217250A (en) | 1999-05-26 |
Family
ID=19523401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98123417A Pending CN1217250A (en) | 1997-10-24 | 1998-10-21 | Gas-jetting moulding machine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH11192645A (en) |
| KR (1) | KR100248773B1 (en) |
| CN (1) | CN1217250A (en) |
| ES (1) | ES2149112B1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010113253A (en) * | 2000-06-17 | 2001-12-28 | 김성동 | Forming mold construction |
| TW548173B (en) * | 2001-07-10 | 2003-08-21 | Cinpres Gas Injection Ltd | Process and apparatus for injection moulding a hollow plastics article |
| CN108381803B (en) * | 2018-03-21 | 2023-12-15 | 江西海源复合材料科技股份有限公司 | Resin and cut-off glass fiber mixing equipment |
| KR102257217B1 (en) * | 2019-06-18 | 2021-05-28 | 한국생산기술연구원 | Apparatus for preventing air trap on the bullet-shaped injection products |
| CN113145716B (en) * | 2021-03-25 | 2022-10-25 | 哈尔滨工业大学 | Two-piece one-die forming method for mutually symmetrical characteristic parts |
| CN113799334A (en) * | 2021-10-20 | 2021-12-17 | 宁波方正汽车模具股份有限公司 | Gas-assisted forming mechanism of automobile door plate handrail |
| CN113927835B (en) * | 2021-10-22 | 2023-06-30 | 江苏汇鼎光学眼镜有限公司 | Resin filling auxiliary device in production process of resin spectacle lenses |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4102319C2 (en) * | 1990-01-30 | 1994-12-01 | Toyoda Gosei Kk | Method and device for molding hollow bodies |
| JP3827333B2 (en) * | 1993-04-14 | 2006-09-27 | 株式会社プライムポリマー | Gas injection molding method and its mold |
| JPH07148798A (en) * | 1993-11-29 | 1995-06-13 | Asahi Chem Ind Co Ltd | Injection molded product, injection molding method and mold apparatus used therein |
| JP3402404B2 (en) * | 1994-08-12 | 2003-05-06 | 三菱エンジニアリングプラスチックス株式会社 | Injection molding method and injection mold for molded article having hollow structure |
| JPH08118429A (en) * | 1994-10-26 | 1996-05-14 | Sekisui Chem Co Ltd | Injection mold and injection-molded article |
-
1997
- 1997-10-24 KR KR1019970054948A patent/KR100248773B1/en not_active IP Right Cessation
-
1998
- 1998-10-20 JP JP10298873A patent/JPH11192645A/en active Pending
- 1998-10-21 ES ES009802196A patent/ES2149112B1/en not_active Expired - Lifetime
- 1998-10-21 CN CN98123417A patent/CN1217250A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ES2149112B1 (en) | 2001-05-01 |
| KR100248773B1 (en) | 2000-03-15 |
| ES2149112A1 (en) | 2000-10-16 |
| KR19990033563A (en) | 1999-05-15 |
| JPH11192645A (en) | 1999-07-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |