KR200217556Y1 - Low Pressure Injection Molding Mold Structure - Google Patents
Low Pressure Injection Molding Mold Structure Download PDFInfo
- Publication number
- KR200217556Y1 KR200217556Y1 KR2019980016737U KR19980016737U KR200217556Y1 KR 200217556 Y1 KR200217556 Y1 KR 200217556Y1 KR 2019980016737 U KR2019980016737 U KR 2019980016737U KR 19980016737 U KR19980016737 U KR 19980016737U KR 200217556 Y1 KR200217556 Y1 KR 200217556Y1
- Authority
- KR
- South Korea
- Prior art keywords
- mold
- upper mold
- pressure injection
- injection molding
- low pressure
- Prior art date
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
본 고안은 상부금형에는 표피재가 구비되고 하부금형의 케비티에 액상수지가 공급되도록 하여 이 상,하부 금형을 합형시킬시 표피재가 수평을 균일하게 유지하도록 하고 액상수지는 금형케비티 외부로 유출되지 못하게 하면서 일회 압착작업으로 표피층과 기재층을 동시에 압착성형하여 자동차 내장재를 제조할 수 있도록 하는 저압사출복합성형기의 금형구조에 대한 것이다.The present invention is provided with a skin material on the upper mold and liquid resin is supplied to the cavity of the lower mold so that the skin material is kept evenly when the upper and lower molds are molded, and the liquid resin does not spill out of the mold cavity. The present invention relates to a mold structure of a low pressure injection molding machine that enables to manufacture automobile interior materials by simultaneously pressing and molding the skin layer and the base layer by one pressing operation.
Description
본 고안은 금형을 상부금형(암금형)과 하부금형(숫금형)으로 분리시키고 이 상부금형과 하부금형 사이에 성형소재를 (액상 또는 판상) 개재시키고 가열압착하여 성형품을 제조하는 저압사출복합성형기술분야에 대한 것으로 특히 상기 저압사출복합성형기술을 사용하여 제조하는 성형품의 일실시예로서 자동차 내장재를 생산할 경우의 저압사출복합성형기(1)에 있어서, 상부금형(2)의 금형형상(3)의 주연부를 따라 일정한 길이의 고정핀(clamping pin)(4)을 일정한 간격으로 다수개 돌설하고 이 핀(4)에 적당한 재질의 표피재(5)를 삽착하여 표피재(5)가 균일한 수평을 유지하게 한 상태에서 첨부한 도면 도 3 에 도시한 바와 같이 상부금형(2)을 하강시키고 이때 하부금형(6)에는 기재가 되는 액상수지(7)가 핫런너노즐(HOT RUNNER NOZZLE)(8)로 부터 하부금형(6)의 케비티(9) 상면에 공급되고 상부금형(2)과 하부금형(6)이 합형되어 성형이 이루어지며 일정한 시간동안 금형을 냉각시켜서 성형품(10)의 형상을 고정유지되게 한 다음 상부금형(2)이 상승하고 하부금형(6)에 설치된 밀대(EJECTOR PIN)(10)가 하부금형(6)에 밀착되어 있는 성형품(11)을 상부로 밀어올려 하부금형(6)으로 부터 이형되게 하는 구조로 될 수 있도록 고안한 것이다.The present invention separates the mold into upper mold (female mold) and lower mold (male mold), and the low pressure injection molding molding for manufacturing a molded article by interposing a molding material (liquid or plate) between the upper mold and the lower mold and heating and pressing. In the low-pressure injection molding machine (1) in the case of manufacturing automobile interior materials as an embodiment of a molded article manufactured using the low-pressure injection molding technology, in particular, the mold shape (3) of the upper mold (2) A plurality of clamping pins (4) of constant length along the periphery of the protrusions at regular intervals, and the skin material (5) of the appropriate material is inserted into the pin (4) by horizontally As shown in FIG. 3, the upper mold 2 is lowered, and at this time, the lower mold 6 has a liquid resin 7, which is a base material, as a hot runner nozzle. Of lower mold (6) (9) The upper mold (2) and the lower mold (6) are supplied to the upper surface and the molding is performed, and the mold is cooled for a predetermined time to maintain the shape of the molded product 10, and then the upper mold (2) is EJECTOR PIN 10 installed on the lower mold 6 may be configured to push up the molded product 11 closely attached to the lower mold 6 to be released from the lower mold 6. It is designed to be.
종래에는 상부금형(2)의 금형형상(3)면에 적당한 재질의 표피재(5)를 균일한 장력으로 고정하는 별다른 장치가 없어 상부금형(2)과 하부금형(6) 사이에 표피재(5)를 개재위치시킨 상태에서 상부금형(2)과 하부금형(6)을 합형하여 표피재(5)를 일정한 온도로서 압지하여 성형하였고 이때 표피재(5)는 금형형상에 따라 압착시 늘어나게 되는 바, 이때 늘어나는 표피재(5)의 두께가 균일하지 않고 형상에 따라서는 상부금형(2)과 하부금형(6) 사이에서 표피재(5)가 파열되는 찢어짐현상이 생겨서 제품불량율이 비교적 높았다.Conventionally, since there is no other device for fixing the skin material 5 of suitable material to the mold shape 3 surface of the upper mold 2 with uniform tension, the skin material between the upper mold 2 and the lower mold 6 can be removed. In the state of placing 5), the upper mold (2) and the lower mold (6) are combined to press and shape the skin material (5) at a constant temperature. At this time, the skin material (5) is stretched when pressed according to the mold shape. At this time, the thickness of the elongated skin material 5 is not uniform, and according to the shape, the tearing phenomenon in which the skin material 5 ruptures between the upper mold 2 and the lower mold 6 occurs, resulting in a relatively high product defect rate.
본 고안은 상기와 같은 표피재(5)를 균일한 두께가 될 수 있도록 하면서 찢어짐현상을 제거할 수 있도록 안출한 고안이다.The present invention is devised to remove the tearing phenomenon while allowing the skin 5 as described above to have a uniform thickness.
도 1 은 본 고안상으로 실시되는 저압사출복합성형용 금형에 있어서 상부금형의 하부금형과의 대접면을 평면적으로 도시한 상부금형의 저면도Figure 1 is a bottom view of the upper mold showing a planar surface facing the lower mold of the upper mold in the mold for low-pressure injection complex molding carried out in accordance with the present invention
도 2 는 본 고안상의 금형구조로 구성되어 상부금형과 하부금형이 분리된 상태에서 상부금형에 성형재료중의 표피층이 되는 재료를 착설한 상태를 예시한 단면개요도Figure 2 is a cross-sectional view illustrating a state in which the material to be the skin layer of the molding material on the upper mold in a state in which the upper mold and the lower mold are separated from the mold structure according to the present invention.
도 3 은 본 고안상의 금형으로 재료를 공급, 압착, 냉각시켜서 제품을 성형하는 제조공정단면도로서3 is a cross-sectional view of a manufacturing process for forming a product by supplying, pressing, and cooling a material into a mold according to the present invention.
도 3a 는 도 2 의 동작초기상태인 표피재를 상부금형에 착설한 상태에서 상부금형이 하강함과 동시에 하부금형 저부에 장치된 핫런너노즐(HOT RUNNER NOZZLE)로 부터 용융된 수지(樹脂)가 하부금형 상면 케비티로 공급된 상태를 도시한 단면도FIG. 3A illustrates that the upper mold is lowered while the skin material in the initial operation state of FIG. 2 is installed on the upper mold, and the molten resin is melted from the hot runner nozzle installed at the bottom of the lower mold. Cross section showing the state of supply to the upper mold cavity
도 3b 는 상부금형과 하부금형이 합형되어 상부금형과 하부금형 사이에 개재된 표피재와 수지가 압착성형된 상태단면도Figure 3b is a cross-sectional view of the upper mold and the lower mold is molded so that the skin material and resin sandwiched between the upper mold and the lower mold is pressed.
도 3c 는 압착성형된 상태에서 냉각작업을 마치고 성형품이 고화된 다음 상부금형이 상승하여 하부금형과 이형된 상태단면도Figure 3c is a state in which the lower mold and the release state by the upper mold is raised and then the molded product is solidified after the cooling operation in the press-molded state
도 3d 는 하부금형으로 부터 성형품을 기계적으로 분리시켜 성형품이 상,하금형으로 부터 완전히 이형완료된 상태단면도3d is a state in which the molded product is completely released from the upper and lower molds by mechanically separating the molded product from the lower mold.
도 4 는 본 고안상으로 실시되는 금형구조에 있어서 합형시의 표피재 상태를 나타낸 것으로서 도 3b 에서의 ″A″부 및 ″B″부중 ″A″부 확대단면도Figure 4 is an enlarged cross-sectional view of the ″ A ″ portion and ″ B ″ portion ″ A ″ portion in Fig. 3b as showing the state of the skin material during the molding in the mold structure implemented in accordance with the present invention
도 5 는 본 고안상으로 실시되는 표피재 고정핀 구조확대단면도Figure 5 is an enlarged cross-sectional view of the structure of the skin fixing pin implemented in accordance with the present invention
〈도면의 주요부분에 대한 부호설명〉<Code Description of Main Parts of Drawing>
1 : 저압사출복합성형기 2 : 상부금형1: Low pressure injection molding machine 2: Upper mold
3 : 금형형상 4 : 핀(pin)3: mold shape 4: pin
5 : 표피재 6 : 하부금형5: skin material 6: lower mold
7 : 액상수지 8 : 핫런너노즐(HOT RUNNER NOZZLE)7: Liquid Resin 8: Hot Runner Nozzle
9 : 금형케비티 10 : 밀대(EJECTOR PIN)9: mold cavity 10: pushpin (EJECTOR PIN)
11 : 성형품 12 : 돌출간11: molded article 12: protrusion
13,13a : 암나사 14 : 강대13,13a: female thread 14: steel band
16 : 숫나사 17,17a : 외각선단벽16: male thread 17,17a: outer end wall
18 : 기재층 19 : 표피층18: substrate layer 19: skin layer
본 고안상으로 실시되는 본원고안을 첨부한 도면 도 1 과 도 4 및 도 5 를 참고로 하여 상술하면 저압사출복합성형기(1)에 장착되는 상부금형(2)에 있어서 금형형상을 따라 일정한 거리를 이격한 상태에서 일정한 높이의 돌출간(12)을 상부금형(2) 저면에 용접부착하되 돌출간(12) 중앙에는 암나사(13)를 형성하고 이 돌출간(12) 저면에는 표피재(5)를 균일하게 지지하도록 강대(14)를 돌출간(12)과 용접부착하며 강대(14)를 돌출간(12)에 형성된 암나사(13)부와 동일한 중심축과 직경을 가지는 암나사(13a)부를 형성하고 이 암나사(13)(13a)에 나착되도록 상단부에 숫나사(14)가 형성되고 하측선단이 예리한 침으로 된 핀(4)을 암나사(13)(13a)에 나착고정하여 금형형상 주연부를 따라 용접부착된 강대(14)에 일정간격으로 돌설하고 상부금형(2)과 하부금형(6)이 합형될시 하부금형(6) 외각선단벽(17)이 상부금형(2) 외각선단벽(17a) 내면에 긴밀히 밀착된 상태로 상부금형(2) 내면에 일정깊이(ℓ)로 강삽되게 하여서 본원고안의 구조가 구성된다.With reference to the accompanying drawings of the present invention implemented in accordance with the present invention with reference to Figs. 1 and 4 and 5 in the upper mold (2) mounted on the low-pressure injection molding machine (1) a certain distance along the mold shape In the spaced apart state, a protrusion 12 having a constant height is welded to the bottom of the upper mold 2, and a female screw 13 is formed at the center of the protrusion 12, and a skin material 5 at the bottom of the protrusion 12. The steel strip 14 is welded and attached to the protruding section 12 so that the steel strip 14 is uniformly supported, and the female screw 13a portion having the same central axis and diameter as the female screw 13 section formed on the protruding section 12 is formed. A male screw 14 is formed at the upper end to be screwed to the female screw 13, 13a, and the pin 4 made of a needle having a sharp lower end is screwed onto the female screw 13, 13a to be welded along the periphery of the mold shape. When the upper mold (2) and the lower mold (6) are combined with each other, they protrude to the attached steel strip 14 at a predetermined interval. The structure of the present application is made so that the mold (6) the outer end wall (17) is in close contact with the inner surface of the upper mold (2) the outer end wall (17a) and inserted into the inner surface of the upper mold (2) with a predetermined depth (ℓ). It is composed.
상기와 같이 구성된 본원고안은 하부금형(6)의 케비티(9) 상면에 수지(7)가 핫런너노즐(8)로 부터 공급됨과 동시 상부금형(2)이 하강하되 상부금형(2) 저면에는 금형형상윤곽 전둘레에 부착된 강대(14)에 돌설된 핀(4)에 일정한 두께의 표피재(5)가 균일한 장력으로 수평으로 삽착되어 펼쳐진 상태에서 하강하고 상부금형(2)과 하부금형(6)이 합형되기 시작하면 상부금형(2)의 외각선단벽(17a)와 하부금형(6)의 외각선단벽(17)이 서로 밀착되면서 하강하고 이 외각선단벽(17)과 선단벽(17a) 사이에 표피재(5)가 압착되면서 상,하금형이 합형되며 하부금형(6) 내부에 충전된 액상수지(7)는 금형케비티(9)내에서 가열압착되면서 금형형상대로 수지(7)로 된 기재층(18)과 이 기재층(18)에 표피재(5)로 된 표피층(19)으로 별도의 접착제없이 일체로 성형되고 냉각시켜서 성형된 형상을 고화유지시키도록 하고 이렇게 성형된 자동차내장재는 밀대(10)로 이형하여 제품을 생산하도록 한다.The present invention configured as described above is the resin (7) is supplied from the hot runner nozzle (8) on the upper surface of the cavity (9) of the lower mold (6) and the upper mold (2) is lowered, but the upper mold (2) bottom The upper surface of the mold (2) and the lower part in the unfolded state in which the skin material (5) of a certain thickness is inserted horizontally with uniform tension in the pin (4) protruding from the steel strip (14) attached to the front circumference of the mold shape When the mold 6 starts to be molded, the outer end wall 17a of the upper mold 2 and the outer end wall 17 of the lower mold 6 come into close contact with each other, and the lower end wall 17 and the end wall of the lower mold 6 come into close contact with each other. The upper and lower molds are combined as the skin material 5 is pressed between the 17a, and the liquid resin 7 filled in the lower mold 6 is heated and pressed in the mold cavity 9 to form a resin. (7) formed of a base material layer 18 and a base material layer 18 of the base material layer 18 and a skin material layer 19 of the skin material 5 integrally molded and cooled without an adhesive. So as to keep the solidification phase, and thus the molded automotive interior material is to produce a product to release a plunger (10).
종래에 일회압착작업으로 기재와 표피재를 가압성형할시 상,하금형의 틈새로 수지가 유출되는 현상을 상부금형(2)과 하부금형(6)의 대접면인 외각선단벽(17)(17a)을 밀착시킨 상태로 합형되게 하므로서 외각선단벽(17)과 외각선단벽(17a) 사이에 표피재가 밀폐 실러(sealer)역할을 하게 되므로 액상수지의 유실이 없고 상부금형 형상대로 다수개의 핀(4)이 균일하게 나사결합으로 결합되어 있어 표피재(5)를 평활하게 핀(4)에 꽂아서 고정하여 주므로서 표피재(5)가 균일한 두께로 성형되게 된다.Conventionally, when press-molding the base material and the skin material by one-time pressing operation, the resin spilled into the gap between the upper mold and the lower mold is the outer end wall 17, which is a contact surface between the upper mold and the lower mold. As the skin material acts as a sealed sealer between the outer hull end wall 17 and the outer hull end wall 17a by allowing the mold to be brought into close contact with each other 17a), there is no loss of the liquid resin and a plurality of pins in the shape of the upper mold. 4) is uniformly coupled by screwing, so that the skin 5 is smoothly inserted into the pin 4 to fix the skin 5 in a uniform thickness.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019980016737U KR200217556Y1 (en) | 1998-09-03 | 1998-09-03 | Low Pressure Injection Molding Mold Structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019980016737U KR200217556Y1 (en) | 1998-09-03 | 1998-09-03 | Low Pressure Injection Molding Mold Structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20000005842U KR20000005842U (en) | 2000-04-06 |
| KR200217556Y1 true KR200217556Y1 (en) | 2001-04-02 |
Family
ID=69520548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019980016737U KR200217556Y1 (en) | 1998-09-03 | 1998-09-03 | Low Pressure Injection Molding Mold Structure |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200217556Y1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100451029B1 (en) * | 2003-10-21 | 2004-10-06 | 김길곤 | The method for manufacturing and apparatus for catapulting and molding insert cloth |
-
1998
- 1998-09-03 KR KR2019980016737U patent/KR200217556Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR20000005842U (en) | 2000-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR200217556Y1 (en) | Low Pressure Injection Molding Mold Structure | |
| EP0369009A4 (en) | Method and apparatus for injection compression molding | |
| JP2729900B2 (en) | Molding method and molding die for hollow product | |
| JP2593796B2 (en) | Manufacturing method of cylindrical plastic products | |
| JPH0462118A (en) | Method for molding of hollow resin molded item | |
| JPS63280612A (en) | Method of improving quality of injection molded form | |
| JP2736664B2 (en) | Manufacturing method of injection molded products | |
| JPH08127032A (en) | Manufacture of plastic molded product | |
| JPH11198172A (en) | Method and apparatus for producing composite from plastic compound | |
| JPH1058493A (en) | Injection molding method for synthetic resin molding, and mold | |
| KR100369113B1 (en) | A supporter of mold for thermoplastics | |
| KR101317646B1 (en) | Manufacturing method of unified thermoplastic and hot-melt product | |
| JPH0761663B2 (en) | Molding method for synthetic resin moldings | |
| JP2807980B2 (en) | Manufacturing method of hollow injection molded products | |
| US11633893B2 (en) | Fine pattern transfer mold and fine pattern molding method | |
| KR101958204B1 (en) | Mold for molding product that it has no incline and method for using the mold | |
| KR100516218B1 (en) | covering product molding apparatus and molding method thereof | |
| JPH06312773A (en) | Aerosol container mounting cup and method for forming gasket for the same | |
| JPH06840A (en) | Production of bag-like product integrally having ring on opening edge | |
| JPS6112313A (en) | Method and apparatus for preparing resin molded product | |
| JP2000190354A (en) | Injection molding | |
| JP3974962B2 (en) | Insert molding equipment | |
| JPH06839A (en) | Production of bag-like product integrally having ring on opening edge | |
| JPS5837624Y2 (en) | Molding equipment for molded products with thread bottoms | |
| JPH0234302B2 (en) | KOSEIDOPURASUCHITSUKUSEIBOJOTAINOSEIKEIHOHO |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 20130110 Year of fee payment: 13 |
|
| EXPY | Expiration of term |