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KR100248773B1 - A molder of gas injection molding - Google Patents

A molder of gas injection molding Download PDF

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Publication number
KR100248773B1
KR100248773B1 KR1019970054948A KR19970054948A KR100248773B1 KR 100248773 B1 KR100248773 B1 KR 100248773B1 KR 1019970054948 A KR1019970054948 A KR 1019970054948A KR 19970054948 A KR19970054948 A KR 19970054948A KR 100248773 B1 KR100248773 B1 KR 100248773B1
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KR
South Korea
Prior art keywords
cavity
injection molding
auxiliary cavity
injection
gas
Prior art date
Application number
KR1019970054948A
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Korean (ko)
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KR19990033563A (en
Inventor
이재권
Original Assignee
윤종용
삼성전자주식회사
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Publication date
Application filed by 윤종용, 삼성전자주식회사 filed Critical 윤종용
Priority to KR1019970054948A priority Critical patent/KR100248773B1/en
Priority to JP10298873A priority patent/JPH11192645A/en
Priority to CN98123417A priority patent/CN1217250A/en
Priority to ES009802196A priority patent/ES2149112B1/en
Publication of KR19990033563A publication Critical patent/KR19990033563A/en
Application granted granted Critical
Publication of KR100248773B1 publication Critical patent/KR100248773B1/en

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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
    • B29C45/1703—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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

본 발명에 의한 가스 사출성형용 금형은, 가스 사출성형시 게이트를 통해 캐버티의 내부로 용융상태의 레진이 충진된 후 가스가 충진될 때 캐버티내에서 오버플로우되는 양을 수용하도록 캐버티의 일측에 보조캐버티를 구비한 가스 사출성형용 금형에 있어서, 상기 보조캐버티에는 그 보조캐버티의 사용면적을 임의로 가변하도록 조절수단이 설치된 것을 특징으로 되어 있으므로, 종래와 같이 금형을 재가공할 염려가 없을 뿐만 아니라 사출성형후 사출제품의 표면에 사출흐름자국에 의한 외관 불량을 미연에 방지할 수 있는 것이다.The gas injection mold according to the present invention is characterized in that, when gas is filled, the molten resin is filled into the cavity through the gate at the time of gas injection molding to accommodate the amount of overflow in the cavity when the gas is filled. In the gas injection molding mold having an auxiliary cavity on one side, the auxiliary cavity is characterized in that the adjusting means is provided to arbitrarily vary the use area of the auxiliary cavity, so that the mold may be reprocessed as in the prior art. In addition, it is possible to prevent appearance defects due to injection flow marks on the surface of the injection molded product after injection molding.

Description

가스 사출성형용 금형Gas Injection Mold

본 발명은 가스 사출성형용 금형에 관한 것으로 더욱 상세하게는 가스 사출 성형시 사출금형의 캐버티(Cavity)내에서 오버플로우(Over Flow)되는 양(量)을 적절히 조절하여 금형재가공을 없앰과 동시에 사출성형후 사출제품의 표면에 생기는 사출흐름자욱에 의한 외관 불량을 미연에 방지하도록 한 가스 사출성형용 금형에 관한 것이다.The present invention relates to a gas injection mold, and more particularly, to appropriately control the amount of overflow in the cavity of the injection mold during gas injection molding, thereby eliminating mold material processing. The present invention relates to a gas injection mold for preventing appearance defects caused by injection flow on the surface of an injection product after injection molding.

종래에 의한 사출금형(10)은, 제1도에 도시한 바와 같이 상하 적층되게 결합되는 상원판(11) 및 하원판(12)으로 이루어져 있다.The injection mold 10 according to the related art includes a top plate 11 and a bottom plate 12 that are coupled to be stacked up and down as shown in FIG. 1.

이때, 상기 상원판(11)과 하원판(12)이 서로 접촉되는 내측면 중앙에는 상하 대칭되게 캐버티(13)가 형성되어 있고, 상기 상원판(11)과 하원판(12)이 서로 접촉되는 일측단에는 가스 사출성형에 필요한 용융상태의 레진이 상기 캐버티(13)내에 흘러들어가도록 상하 대칭되게 런너(Runner ; 14)가 형성되어 있으며, 상기 캐버티(13)와 런너(14)와의 사이에는 런너(14)를 통해 주입되는 용융상태의 레진이 빠른 속도로 캐버티(13)에 분사되도록 상하 대칭되게 게이트(Gate ; 15)가 좁게 형성되어 있다.At this time, the cavity 13 is formed symmetrically in the center of the inner surface where the upper plate 11 and the lower plate 12 contact each other, and the upper plate 11 and the lower plate 12 contact each other. Runner 14 is vertically symmetrically formed so that the molten resin required for gas injection flows into the cavity 13 at one end thereof, and the cavity 13 and the runner 14 are formed. The gate 15 is narrowly formed up and down symmetrically so that molten resin injected through the runner 14 is injected into the cavity 13 at a high speed.

또, 상기 상원판(11)과 하원판(12)이 서로 접촉되는 내측면에 대하여 타측단에는 상기 캐버티(13)로 용융상태의 레진을 충진후 가스를 충진할 때 오버플로우되는 양을 수용하여 캐버티(13)의 표면에 생기는 사출흐름자욱의 위치를 조절하도록 상하 대칭되게 보조게이트(16)를 가진 보조 캐버티(17)가 형성되어 있다.In addition, the other end of the upper plate 11 and the lower plate 12 in contact with each other at the other end is filled with the amount of overflow when filling the gas after filling the resin in the molten state with the cavity 13 As a result, an auxiliary cavity 17 having an auxiliary gate 16 is formed to be symmetrically up and down so as to adjust the position of the injection flow path generated on the surface of the cavity 13.

이러한, 사출금형(10)에 의해 사출성형되는 사출제품(20)은 제2도에 도시한 바와 같이 도시되지 않은 공기조화기의 토출구를 통해 실내기의 외부로 토출되는 냉기류를 상하방향으로 풍량을 조절하도록 사용되는 상하풍향 조절용 블레이드 등을 예로 들 수 있다.The injection molded product 20 injection-molded by the injection mold 10 adjusts the air volume in the vertical direction to cool air flow discharged to the outside of the indoor unit through the discharge port of the air conditioner (not shown) as shown in FIG. For example, the blade for adjusting the up and down wind direction to be used.

즉, 상기 사출제품(20)은 상기 사출금형(10)에 의해 가스 사출성형시 상기 게이트(15)를 통해 용융상태의 레진을 캐버티(13)내에 충진시킨 다음 가스를 충진시키면 분사되는 가스 압력에 의해 오버플로우되는 용융상태의 레진이 보조게이트(16)를 통해 보조캐버티(17)로 배출됨으로써 캐버티(13)내에 존재하는 용융상태의 레진에 의해 일정한 두께를 유지함과 동시에 내부에 공간이 형성되는 구조로 완성되게 된다.That is, the injection molded product 20 is injected by filling the gas in the cavity 13 after filling the resin in the molten state through the gate 15 when the gas injection molding by the injection mold (10) Molten resin overflowed by the discharged to the auxiliary cavity 17 through the auxiliary gate 16 to maintain a constant thickness by the molten resin present in the cavity 13 and at the same time there is a space inside The structure is formed.

그러나, 상기한 바와 같이 구성된 종래는, 가스 사출 성형시 사출금형(10)의 일측에 형성된 게이트(15)를 통해 용융상태의 레진을 캐버티(13)내에 충진시킨 다음 가스를 충진시키면 분사되는 가스압력에 의해 오버플로우되는 용융상태의 레진이 상기 게이트(15)의 반대편에 형성된 보조게이트(16)를 통해 보조캐버티(17)로 배출됨으로써 사출성형후 사출제품(20)의 표면에 생기는 사출흐름자욱의 위치를 조정하였으나, 이러한 금형구조에서 보조캐버티(17)는 가변될 수 없는 고정 면적으로 되어 있기 때문에 사출성형후 오버플로우되는 양이 적당하지 않을 경우 여러번의 금형 재가공을 통해 그 양을 결정해야 한다는 문제점이 있었다.However, conventionally configured as described above, the gas is injected when the resin in the molten state is filled in the cavity 13 through the gate 15 formed on one side of the injection mold 10 during gas injection molding and then filled with gas The injection flow generated on the surface of the injection-molded product 20 after injection molding by discharging molten resin overflowed by pressure through the auxiliary gate 16 formed on the opposite side of the gate 15 to the auxiliary cavity 17. Although the position of the jaws was adjusted, in this mold structure, since the auxiliary cavity 17 has a fixed area which cannot be changed, if the amount overflowed after injection molding is not appropriate, the amount is determined by reworking the mold several times. There was a problem.

따라서, 본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 가스 사출성형시 보조 캐버티에 설치된 조절수단에 의해 오버플로우되는 앙을 조절하여, 금형 재가공의 염려를 없앰과 동시에 사출성형후 사출제품의 표면에 사출흐름자욱에 의한 외관 불량을 미연에 방지하도록 한 가스 사출성형용 금형을 제공하는데 있다.Therefore, the present invention has been made to solve the above problems, the object of the present invention is to adjust the overflow overflow by the control means installed in the auxiliary cavity during the gas injection molding, eliminating the concern of mold rework and At the same time, it is to provide a gas injection mold for preventing appearance defects caused by injection flow on the surface of an injection product after injection molding.

상기와 같은 목적을 실현하기 위하여 이루어진 본 발명에 의한 가스 사출성형용 금형은, 가스 사출성형시 게이트를 통해 캐버티의 내부로 용융상태의 레진에 충진된 후 가스가 충진될 때 캐버티내에서 오버플로우되는 양을 수용하도록 캐버티의 일측에 보조캐버티를 구비한 가스 사출성형용 금형에 있어서, 싱기 보조 캐버티에는 그 보조캐버티의 사용면적을 임의로 가변하도록 조절수단이 설치된 것을 특징으로 한다.The gas injection molding mold according to the present invention made to achieve the above object is overfilled in the cavity when gas is filled after filling the molten resin into the cavity through the gate during gas injection molding. In the gas injection molding mold having the auxiliary cavity on one side of the cavity to accommodate the flow amount, the cutting means auxiliary cavity is characterized in that the adjusting means is installed to arbitrarily vary the use area of the auxiliary cavity.

제1도는 종래에 의한 사출금형구조를 도시한 단면도.1 is a cross-sectional view showing a conventional injection mold structure.

제2도는 종래에 의한 사출금형에 의해 사출성형시 사출제품의 표면에 사출흐름 자욱이 형성된 것을 도시한 사시도.2 is a perspective view showing that the injection flow traces are formed on the surface of the injection molded product during the injection molding by a conventional injection mold.

제3도는 본 발명의 사출금형구조를 도시한 단면도.3 is a cross-sectional view showing an injection mold structure of the present invention.

제4도는 본 발명에 의한 사출금형의 하원판과 오버플로우 양을 조절하기 위한 조절 수단을 도시한 사시도이다.4 is a perspective view showing the lower plate of the injection mold according to the present invention and the adjusting means for adjusting the overflow amount.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

20 : 사출제품 40 : 사출금형20: injection product 40: injection mold

41 : 상원판 42 : 하원판41: Senate 42: House of Representatives

43 : 캐버티 44 : 런너43: cavity 44: runner

45 : 게이트 46 : 보조게이트45: gate 46: auxiliary gate

47 : 보조캐버티 50 : 조절수단47: auxiliary cavity 50: adjusting means

51 : 조절볼트 51a : 머리부51: adjusting bolt 51a: head

52 : 승하강부재52: lifting member

이하, 본 발명의 일실시예에 관하여 첨주도면을 참조하면서 상세히 설명한다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

도면에서 종래의 구성과 동이란 구성에 대해서는 동일 명칭 및 동일부호를 부여하고, 그에 대한 상세한 설명은 생략한다.In the drawings, the same components as those in the related art are denoted by the same names and the same reference numerals, and detailed description thereof will be omitted.

본 발명에 의한 사출금형(40)은, 도 3 및 도 4에 도시한 바와 같이 상원판(41)과 하원판(42)이 서로 접촉되는 내측면 중앙에 캐버티(43)가 형성되어 있고, 상기 상원판(41)가 하원판(42)이 서로 접촉되는 일측단에는 사출성형에 필요한 용융상태의 레진이 상기 캐버티(43)내에 흘러들어가도록 런너(44)가 형성되어 있으며, 상기 캐버티(43)와 런너(44)와의 사이에는 런너(44)를 통해 주입되는 용융상태의 레진이 빠른 속도로 캐버티(43)에 분사되도록 게이트(45)가 좁게 형성되어 있다.In the injection mold 40 according to the present invention, as shown in FIGS. 3 and 4, the cavity 43 is formed at the center of the inner surface where the upper plate 41 and the lower plate 42 contact each other. At one end of the upper plate 41 where the lower plate 42 is in contact with each other, a runner 44 is formed so that the molten resin required for injection molding flows into the cavity 43. The gate 45 is narrowly formed between the 43 and the runner 44 so that the molten resin injected through the runner 44 is injected into the cavity 43 at a high speed.

또, 상기 상원판(41)과 하원판(42)이 서로 접촉되는 내측면에 대하여 타측단에는 상기 캐버티(43)로 용융상태의 레진을 충진후 가스를 충진할 때 오버플로우되는 양을 수용하여 캐버티(43)의 표면에 생기는 사출흐름자욱의 위치를 조절하도록 상하 대칭되게 보조게이트(46)를 가진 보조캐버티(47)가 형성되어 있고, 상기 보조캐버티(47)에는 보조캐버티(47)의 사용면적을 임의적으로 가변하도록 조절수단(50)이 설치되어 있다.In addition, the other end of the upper plate 41 and the lower plate 42 is in contact with each other at the other end to accommodate the amount overflowed when filling the gas after filling the resin in the molten state with the cavity 43 The auxiliary cavity 47 having the auxiliary gate 46 is formed up and down symmetrically to adjust the position of the injection flow generated on the surface of the cavity 43, the auxiliary cavity 47 is formed in the auxiliary cavity 47 The adjusting means 50 is provided so that the use area of 47 may be arbitrarily changed.

즉, 상기 조절수단(50)은 상기 보조캐버티(47)의 바닥에 형성된 나사홀(48)을 관통하도록 나사결합되는 조절볼트(51)와, 상기 보조캐버티(47)의 면적을 축소 및 확대시키도록 보조캐버티(47)의 내부에서 상기 조절볼트(51)의 끝단에 고정되는 승하강부재(52)로 이루어져 있다.That is, the adjusting means 50 is a control bolt 51 screwed to pass through the screw hole 48 formed in the bottom of the auxiliary cavity 47, and reduces the area of the auxiliary cavity 47 and It consists of a lifting member 52 which is fixed to the end of the adjusting bolt 51 in the interior of the auxiliary cavity 47 to enlarge.

이때, 상기 조절볼트(51)는 상기 하원판(42)의 하부측에서 작업자 스패너등의 공구를 이용하여 용이하게 회전 조절할 수 있도록 다각형상의 머리부(51a)가 형성되어 있다.At this time, the adjustment bolt 51 is formed on the lower side of the lower plate 42, the polygonal head 51a is formed so that it can be easily rotated using a tool such as a worker spanner.

상기 승하강부재(52)는 그 외주면이 상기 보조캐버티(47)의 내부면에 긴밀하게 밀착되어 미끄럼운동되도록 설치되어 있다.The elevating member 52 is installed so that the outer circumferential surface is in close contact with the inner surface of the auxiliary cavity 47 to slide.

다음에, 이와 같이 구성된 본 발명에 의한 작용 및 효과를 설명한다.Next, the operation and effect of the present invention configured as described above will be described.

제3에 도시한 바와 같이, 사출금형(40)의 상원판(41)과 하원판(42)을 상하 적층되게 결합시킨 상태에서 이들 일측단에 형성된 게이트(45)를 통하여 용융상태의 레진을 충진한 후 가스를 충지하면, 캐버티(43)내에 충진된 용융상태의 레진은 고속으로 분사되는 가스압력에 의해 방사상으로 확산되면서 캐버티(43)의 내벽에 골고루 퍼지게 됨으로써 사출성형후 일정한 두께를 유지함과 동시에 내부에 공간이 형성되는 사출제품(20)을 형성하게 된다.As shown in the third, in the state in which the upper plate 41 and the lower plate 42 of the injection mold 40 are stacked to be stacked up and down, the resin in the molten state is filled through the gate 45 formed at one end thereof. After filling the gas, the resin in the molten state filled in the cavity 43 is spread radially by the gas pressure sprayed at high speed and evenly spreads on the inner wall of the cavity 43 to maintain a constant thickness after injection molding. At the same time to form the injection molded product 20 is formed inside the space.

또, 가스의 분사압력에 의해 캐버티(43)내에서 오버플로우되는 용융상태의 레진은 상기 게이트(45)의 반대편에 형성된 보조게이트(46)을 통해 별도로 마련된 보조캐버티(47)로 배출됨으로써 사출성형후 사출제품(20)의 표면에 생기는 사출흐름자욱에 의한 외관 불량을 미연에 방지하여 준다.In addition, the resin in the molten state that overflows in the cavity 43 due to the injection pressure of the gas is discharged to the auxiliary cavity 47 separately provided through the auxiliary gate 46 formed on the opposite side of the gate 45. After injection molding, it prevents appearance defects due to injection flow generated on the surface of the injection molded product 20 in advance.

그러나, 사출성형후 사출제품(20)의 표면에 사출흐름자욱에 의한 불량이 발생될 경우에는 오버플로우되는 양을 조절하여야 하는데, 이때 작업자는 조절수단(50)의 조절볼트(51)를 좌우방향으로 회전시켜 보조캐버티(47)내에 수용된 승하강부재(52)를 상승 또는 하강시킨다.However, in the event of a defect caused by injection flow defects on the surface of the injection molded product 20 after injection molding, the amount of overflow should be adjusted, in which case the operator moves the adjustment bolt 51 of the adjustment means 50 to the left and right directions. It rotates to raise or lower the lifting member 52 accommodated in the auxiliary cavity 47.

이때, 승하강부재(52)는 제3도에 도시한 바와 같이, 보조캐버티(47)내에서 수직으로 승하강되면서 보조캐버티(47)의 사용면적을 축소 또는 확대시켜 오버플로우되는 양을 조절하게 됨으로, 사출성형후 사출제품(20)의 표면에 생기는 사출흐름자욱에 의한 외관 불량을 방지할 수 있고, 이로 인하여 종래와 같이 금형 재가공에 따른 염려를 없앨 수 있는 것이다.At this time, the elevating member 52, as shown in Figure 3, while raising and lowering vertically in the auxiliary cavity 47 to reduce or enlarge the amount of use of the auxiliary cavity 47 to overflow the amount By controlling, it is possible to prevent the appearance defects due to the injection flow generated on the surface of the injection molded product 20 after injection molding, thereby eliminating the worry of reworking the mold as in the prior art.

앞에서 설명한 바와 같이, 본 발명에 의한 가스 사출성형용 금형에 의하면, 가스 사출성형시 보조캐버티로 오버플로우되는 용융상태의 레진의 양을 임의로 조절할 수 있도록 보조캐버티의 사용면적을 가변시키는 조절수단이 설치된 구조로 되어 있기 때문에 종래와 같이 금형을 재가공할 염려가 없을 뿐만 아니라 사출성형후 사출제품의 표면에 사출흐름자욱에 의한 외관 불량을 미연에 방지할 수 있는 효과가 있다.As described above, according to the gas injection molding mold according to the present invention, the control means for varying the use area of the auxiliary cavity to arbitrarily control the amount of resin in the molten state overflowed to the auxiliary cavity during gas injection molding Since the structure is installed, there is no fear of reprocessing the mold as in the prior art, and there is an effect of preventing appearance defects due to injection flow on the surface of the injection molded product after injection molding.

Claims (1)

가스 사출성형시 게이트(45)를 통해 캐버티(43)의 내부로 용융상태의 레진이 충진된 후 가스가 충진될 때 캐버티(43)내에서 오버플로우되는 양을 수용하도록 캐버티(43)의 일측에 설치된 보조캐버티(47)와, 상기 보조캐버티(47)에는 그 보조캐버티(47)의 사용면적을 임의로 가변하도록 설치된 조절수단(50)을 구비한 가스 사출성형용 금형에 있어서, 상기 조절수단(50)은, 상기 보조 캐버티(47)의 바닥에 형성된 나사홀(48)을 통해 나사결합되어 그 일측단이 보조캐버티(47)의 내부로 돌출됨과 동시에 그 타측단이 보조캐버티(47)의 외부로 돌출되는 다각형상의 머리부(51a)를 가진 조절볼트(51)와, 상기 보조캐버티(47)의 내부면과 긴밀하게 밀착되어 승하강되도록 보조캐버티(47)의 내부로 돌출된 상기 조절볼트(51)의 끝단에 고정되는 승하강부재(52)를 구성함을 특징으로 하는 가스 사출성형용 금형.The cavity 43 is configured to accommodate the amount of overflow in the cavity 43 when the gas is filled after the molten resin is filled into the cavity 43 through the gate 45 during gas injection molding. In the gas injection molding mold having an auxiliary cavity 47 provided on one side of the auxiliary cavity 47, and the control means 50 provided to the auxiliary cavity 47 to arbitrarily vary the use area of the auxiliary cavity 47. The adjusting means 50 is screwed through a screw hole 48 formed at the bottom of the auxiliary cavity 47 so that one end thereof protrudes into the auxiliary cavity 47 and the other end thereof. The adjusting bolt 51 having a polygonal head portion 51a protruding to the outside of the auxiliary cavity 47 and the auxiliary cavity 47 so as to be in close contact with the inner surface of the auxiliary cavity 47 in close and descending manner. Characterized in that the lifting member 52 is fixed to the end of the adjustment bolt 51 protruding into the interior of the); A mold for gas injection molding.
KR1019970054948A 1997-10-24 1997-10-24 A molder of gas injection molding KR100248773B1 (en)

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KR1019970054948A KR100248773B1 (en) 1997-10-24 1997-10-24 A molder of gas injection molding
JP10298873A JPH11192645A (en) 1997-10-24 1998-10-20 Gas injection mold
CN98123417A CN1217250A (en) 1997-10-24 1998-10-21 Gas-jetting moulding machine
ES009802196A ES2149112B1 (en) 1997-10-24 1998-10-21 MOLDING MACHINE WITH GAS INJECTION.

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ES2149112A1 (en) 2000-10-16
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