KR900003740Y1 - Automatic cutting device for gate of injection moulding apparatus - Google Patents
Automatic cutting device for gate of injection moulding apparatus Download PDFInfo
- Publication number
- KR900003740Y1 KR900003740Y1 KR2019860021649U KR860021649U KR900003740Y1 KR 900003740 Y1 KR900003740 Y1 KR 900003740Y1 KR 2019860021649 U KR2019860021649 U KR 2019860021649U KR 860021649 U KR860021649 U KR 860021649U KR 900003740 Y1 KR900003740 Y1 KR 900003740Y1
- Authority
- KR
- South Korea
- Prior art keywords
- gate
- product
- cutting device
- automatic cutting
- eject pin
- Prior art date
Links
- 238000005520 cutting process Methods 0.000 title claims description 13
- 238000001746 injection moulding Methods 0.000 title 1
- 238000000465 moulding Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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
- B29C45/38—Cutting-off equipment for sprues or ingates
-
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
Abstract
내용 없음.No content.
Description
제1a도 본 고안에 따라 구성된 게이트 자동절단장치에 설치상태 정단면도, b도는 본 고안에 따라 구성된 게이트 절단 이젝트 핀의 평면구성도, c도는 본 고안에 따라 구성된 게이트 자동절단 장치의 작동상태도.Figure 1a is a front sectional view of the installation state in the automatic gate cutting device configured in accordance with the present invention, b is a plan view of the gate cutting eject pin configured in accordance with the present invention, c is a view of the operation state of the gate automatic cutting device configured according to the present invention.
제2도는 종래 터널게이트를 구비한 사출금형의 구성을 나타낸 정단면도.Figure 2 is a front sectional view showing the configuration of an injection mold having a conventional tunnel gate.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 고정측형판 11 : 런너부1: fixed side plate 11: runner
12 : 성형캐비티 2 : 가동측형판12: forming cavity 2: movable side plate
21 : 보조편 4 : 제품이젝트 핀21: auxiliary part 4: product eject pin
41 : 오목형터널게이트부 42 : 나사부41: concave tunnel gate portion 42: screw portion
43 : 베어링 5 : 이젝트판43: bearing 5: ejection plate
6 : 제품 8 : 게이트6: product 8: gate
본고안은 사출금형의 게이트 자동절단장치에 관한 것으로서, 특히 성형캐비티 하부에 게이트가 형성된 터널 게이트를 자동 절단 시킬 수 있도록 함에 주안점을 둔 것이다.This paper relates to a gate automatic cutting device for injection molds. In particular, the present invention focuses on automatically cutting tunnel gates having gates formed under molding cavities.
종래의 터널게이트를 자동 절단 시킬수 있도록 함에 주안점을 둔 것이다.The main focus is on the automatic cutting of the conventional tunnel gate.
종래의 터널게이트를 구비한 금형구조를 보면 도면 제2도에서와 같이, 상측의 고정측형판(1')과 하측의 가공측형판(2')내의 코어(9')사이에 런너부(11)와 성형캐비티(12)를 형성하면서, 상기 성형캐비티(12)하부에 용융수지의 공급을 위한 터널게이트부(91')를 형성하였으며, 상기 런너부 및 성형캐비티(11)(12') 하부에서 이젝트 판(5') 사이에는 이젝트 핀(3)(4')이 각각 관통 삽입 설치되어있다.In the mold structure having the conventional tunnel gate, as shown in FIG. 2, the runner portion 11 is formed between the fixed side plate 1 'on the upper side and the core 9' in the lower side plate 2 'on the lower side. ) And a forming cavity 12, a tunnel gate portion 91 ′ for supplying a molten resin is formed under the forming cavity 12, and the runner portion and the forming cavity 11, 12 ′ are formed under the forming cavity 12. Eject pins 3 and 4 'are respectively inserted through the ejection plate 5'.
따라서 용융수지를 스프루붓싱으로 공급하게 되면 상기 런너부(11')와 터널게이트부(91')를 거쳐 성형공간부(12') 내에 수지가 차례로 충진되며, 이를 냉각시켜 일정한 형태를 유지하도록 한 다음 가공측형판(2')을 하강시키게 되면 상대적으로 양측 이젝트핀(3)(4')이 상승하면서 런너부(7')와 성형제품(6')을 밀어올려 이젝트시키게 되는 것이다.Therefore, when the molten resin is supplied to the sprue bushing, resin is sequentially filled in the molding space part 12 'through the runner part 11' and the tunnel gate part 91 ', and cooled to maintain a constant shape. Then, when the processing side plate 2 'is lowered, both ejector pins 3 and 4' are relatively raised, and the runner part 7 'and the molded product 6' are pushed up and ejected.
그런데, 상기와 같은 터널게이트 금형구조는 이젝트핀에 밀려 제품의 이젝트시 저면 일측에 터널게이트(8')가 부착 성형된 상태로 취출되므로서, 상기 게이트(8')의 절단 공정이 추가로 적용되어 제품의 단가상승 및 부수공정 추가에 따른 제작성이 저하되는 문제점이 있었다.However, the tunnel gate mold structure as described above is pushed out by the eject pin and is ejected in a state where the tunnel gate 8 'is attached to one side of the bottom surface when the product is ejected, so that the cutting process of the gate 8' is additionally applied. There was a problem that the manufacturability is reduced due to the increase in the unit cost of the product and the additional process.
따라서, 본 고안은 종래의 상기와 같은 문제점을 해결하기 위하여, 제품 이벤트의 상부에 직접 오목형 터널게이트부를 형성하면서, 그 외주면에 나사부를 형성하고 하단부에 베어링을 결합 설치함과 동시, 가동측형 판에는 상기 나사부와 결합되는 보조편을 구비하므로써, 제품 이젝트핀이 상승시 나사부와 보조편 그리고 베어링에 의해 회전하면서 상향 돌출됨에 따라, 제품 저면에서 터널게이트를 절단시킨 상태로 이젝트 시키도록 한 것으로 이를 첨부된 도면에 따라 상세히 설명하면 다음과 같다.Therefore, the present invention, in order to solve the problems as described above, while forming a concave tunnel gate portion directly on the upper part of the product event, while forming a screw portion on the outer peripheral surface and coupled to install the bearing on the lower end, the movable side plate Since it has an auxiliary piece that is coupled to the threaded portion, as the product eject pin is projected upward while rotating by the threaded portion, the auxiliary piece and the bearing when raised, it is to be ejected in the state of cutting the tunnel gate at the bottom of the product When described in detail according to the drawings as follows.
즉, 고정측형판(1)과, 하측의 가동측형판(2) 내의 코어(9) 사이에 런너부(11)와 성형캐비티(12)가 형성되고, 상기 런너부(11) 및 캐비티(12) 하부의 이젝트판(5) 사이에는 런너 및 제품 이젝트핀(3)(4)이 상하 이송자재토록 관통 삽입 설치된 통상의 것에 있어서, 도면 제1a, b도에서와 같이, 성형캐비티(12)에 결합 설치된 제품 이젝트핀(4)의 상부 길이 방향으로 양측 런너부(11)와 성형 캐비티(12) 사이를 연결시켜주는 오목형 터널 게이트부(41)를 형성함과 동시, 그 외주면에 나사부(42)를 형성하고, 하단의 이젝트판(5) 결합부에는 회전축지지용 베어링(43)을 설치하였다.That is, the runner part 11 and the molding cavity 12 are formed between the stationary side plate 1 and the core 9 in the lower movable side plate 2, and the runner part 11 and the cavity 12 are formed. The runner and the product eject pins 3 and 4 are inserted through the upper and lower conveying materials between the lower ejection plate 5 in the molding cavity 12 as shown in FIGS. 1A and b. The concave tunnel gate portion 41 is formed to connect the two runner portions 11 and the forming cavity 12 in the upper length direction of the combined product eject pin 4, and at the same time, the screw portion 42 is formed on the outer circumferential surface thereof. ), And the bearing 43 for rotating shaft support was attached to the ejecting plate 5 engaging portion at the lower end.
그리고, 가동측형판(2) 하부 일측에는 상기 제품 이젝트핀(4) 외주면의 나사부(42)와 나사 결합시킨 보조편(21)을 고정 설치하여서 된 것이다.In addition, the lower side of the movable side plate 2 is fixed to the auxiliary piece 21 screwed to the threaded portion 42 of the outer peripheral surface of the product eject pin (4).
이상과 같이 구성된 본 고안은, 고정측형판(1)의 스프루붓싱을 통해 금형내로 용융수지를 공급하게 되면 먼저 내측런너부(11)에 충진된 뒤 상기 제품 이젝트핀(4) 상부에 형성된 오목형 터널게이트부(41)를 통해 성형캐비티(12)에 충진완료되는 것이다.According to the present invention configured as described above, when the molten resin is supplied into the mold through the sprue bushing of the fixed side plate 1, it is first filled in the inner runner part 11 and then formed in the upper part of the product eject pin 4. Filling the molding cavity 12 through the type tunnel gate portion 41 is completed.
그후 소정의 냉각과정을 거쳐 가동측형판(2)을 하강시킬 때 상대적으로 양측 이젝트핀(3)(4)이 상승하여 성형된 런너(7)와 제품(6)을 상향 이젝트시키게되는데, 상기 제품 이젝트핀(4)은 나사 결합된 가동측형판(2)의 보조편(21)에 의해 회전 동작하면서 상승됨에 따라 오목형 터널 게이트부(41) 내에 형성된 게이트(8)가 함께 회전되면서 자체 언더컷으로 제품(6)과 런너(7)로부터 절단분리된 상태로 이젝트되는 것이다.(도면 제1c도 참조)Thereafter, when the movable side plate 2 is lowered through a predetermined cooling process, both eject pins 3 and 4 are lifted up to eject the molded runner 7 and the product 6 upward. As the eject pin 4 is raised while being rotated by the auxiliary piece 21 of the screw-side movable side plate 2, the gate 8 formed in the concave tunnel gate portion 41 rotates together to form its own undercut. It is ejected in a state of being separated from the product 6 and the runner 7 (see also drawing 1c).
이때, 상기 제품 이젝트핀(4) 하단부위를 지지하고 있는 베어링(43)은 상기 회전이젝트동작을 보다 원활하게 행할수 있도록 보조역할을 한다.At this time, the bearing 43 supporting the lower end of the product eject pin 4 serves as an auxiliary so that the rotation eject operation can be performed more smoothly.
이상과 같이 구성되고 작동되는 본 고안은 제품 이젝트핀(4)에 오목형 터널게이트부(41)를 일체로 형성하면서, 그외주면의 나사부(42)와 하부의 베어링(43), 그리고 가동측형판(2)의 상기 나사부 결합용 보조편(21)등으로 인하여, 제품 이젝트핀(4)이 상승시 자전 상승되므로서, 그내부의 게이트부에 형성된 터널게이트가 제품 및 런너로부터 절단 분리된 상태로 이젝트되므로서, 별도의 게이트 절단공정을 배제하여 제품의 생산성 향상과 제조 원가 절감에 획기적인 기여와 함께, 게이트 절단 동작이 확실하고 그 절단부 구성이 간단한 등의 특출한 효과가 있는 것이다.The present invention constructed and operated as described above integrally forms the concave tunnel gate portion 41 in the product eject pin 4, while the screw portion 42 and the bearing 43 on the lower circumferential surface, and the movable side plate Due to the threaded joining piece 21 of (2), the product eject pin 4 is autonomously raised when raised, so that the tunnel gate formed in the gate portion therein is cut off from the product and the runner. By ejecting, there is an extraordinary effect such that the gate cutting operation is sure and the cutting part configuration is simple, with a significant contribution to product productivity improvement and manufacturing cost reduction by eliminating a separate gate cutting process.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860021649U KR900003740Y1 (en) | 1986-12-29 | 1986-12-29 | Automatic cutting device for gate of injection moulding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860021649U KR900003740Y1 (en) | 1986-12-29 | 1986-12-29 | Automatic cutting device for gate of injection moulding apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR880011848U KR880011848U (en) | 1988-08-26 |
| KR900003740Y1 true KR900003740Y1 (en) | 1990-04-30 |
Family
ID=19258510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019860021649U KR900003740Y1 (en) | 1986-12-29 | 1986-12-29 | Automatic cutting device for gate of injection moulding apparatus |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR900003740Y1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181776B (en) * | 2019-07-05 | 2024-04-19 | 英力电子科技（重庆）有限公司 | Injection mold capable of automatically cutting materials in mold |
-
1986
- 1986-12-29 KR KR2019860021649U patent/KR900003740Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR880011848U (en) | 1988-08-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR900003740Y1 (en) | Automatic cutting device for gate of injection moulding apparatus | |
| US5962042A (en) | Injection mold | |
| KR100225403B1 (en) | Gate auto cutting injection moulding | |
| CN206855911U (en) | A kind of electric cooker handle injection mold | |
| KR100232820B1 (en) | Injection moulding and injection method using slide core | |
| KR101277318B1 (en) | screw thread maker of injection mold | |
| KR940004925Y1 (en) | Cutting device for side gate | |
| CN212528487U (en) | Injection molding machine for PET bottle blanks | |
| KR910001606Y1 (en) | Cutting-off equipment for gate | |
| KR102479247B1 (en) | Injection mold apparatus with removable runner | |
| CN211105295U (en) | Template push-out type mold structure | |
| KR930002455Y1 (en) | Injection mould | |
| JP3423411B2 (en) | Manufacturing method of helical spiral cam | |
| KR100225401B1 (en) | Injection moulding | |
| SU1016189A1 (en) | Multistation moulding machine for processing plastics | |
| JP3776574B2 (en) | Injection mold and injection molding method | |
| KR0131585Y1 (en) | Injection mould | |
| JPH056095Y2 (en) | ||
| KR200144293Y1 (en) | Injection Molding Structure | |
| KR900005680Y1 (en) | Ejecting device in injection mould | |
| KR870000016Y1 (en) | Discharging device of nut | |
| KR200234466Y1 (en) | Threading Molding Device | |
| KR910003317B1 (en) | Injection mould | |
| KR100370537B1 (en) | Injection Mould for Plastic | |
| KR900005726Y1 (en) | Undercut articles ejecting device from slide core in injection mould |
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: 19930329 Year of fee payment: 4 |
|
| LAPS | Lapse due to unpaid annual fee |