KR900005728Y1 - Outside undercut articles ejecting device in injection mould - Google Patents
Outside undercut articles ejecting device in injection mouldInfo
- Publication number
- KR900005728Y1 KR900005728Y1 KR2019870016233U KR870016233U KR900005728Y1 KR 900005728 Y1 KR900005728 Y1 KR 900005728Y1 KR 2019870016233 U KR2019870016233 U KR 2019870016233U KR 870016233 U KR870016233 U KR 870016233U KR 900005728 Y1 KR900005728 Y1 KR 900005728Y1
- Authority
- KR
- South Korea
- Prior art keywords
- pin
- plate
- mold
- ejecting device
- injection mould
- Prior art date
Links
Classifications
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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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C45/4435—Removing or ejecting moulded articles for undercut articles using inclined, tiltable or flexible undercut forming elements driven by the ejector means
-
- 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
- B29C45/36—Moulds having means for locating or centering cores
-
- 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
- B29C45/36—Moulds having means for locating or centering cores
- B29C2045/363—Moulds having means for locating or centering cores using a movable core or core part
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/058—Undercut
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
내용 없음No content
Description
제1도는 본 고안의 조립상태 종단면도.1 is a longitudinal cross-sectional view of the assembled state of the present invention.
제2도는 본 고안의 요부를 나타낸 상태의 평면도.2 is a plan view showing the main portion of the present invention.
제3도는 본 고안의 1차 작동상태 종단면도.Figure 3 is a longitudinal cross-sectional view of the primary operating state of the present invention.
제4도는 본 고안의 2차 작동상태 종단면도.Figure 4 is a longitudinal cross-sectional view of the secondary operating state of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1,1' : 고정판 2,2' : 원판1,1 ': fixed plate 2,2': disc
3,3' : 하코아 4 : 밀판3,3 ': Hacoa 4: Mild
5 : 핀지지판 6 : 밀핀5 pin support plate 6
7,7' : 슬라이드코아 8,8' : 스프링7,7 ': slide core 8,8': spring
9 : 핀 10 : 핀안내홈9: Pin 10: Pin guide groove
11 : 조우편 12,12' : 슬라이더 홀더11: Zip 12,12 ': Slider holder
13 : 압절봉 14 : 실린더13: pressure rod 14: cylinder
본 고안은 사출 금형에 있어서 측벽에 2중으로 언더컷을 처리해야 하는 특성을 가진 제품을 보다 용이하게 언더컷을 처리할 수 있도록한 사출금형의 측벽 언더컷 처리 장치에 관한 것이다.The present invention relates to a sidewall undercut processing apparatus of an injection mold that enables the undercut to be more easily processed for a product having a property of double undercutting on a sidewall in an injection mold.
종래의 사출금형에 있어서는 성형품의 측벽으로 상하에 언더컷이 있으면서 성형품에 구멍이 성형시켜야하는 경우에 이들 언더컷을 제거하기 위하여 금형 내부에 3중이상 슬라이드 코아를 조합 이를 구동시켜 언더컷을 제거함에 따라 금형 크기가 커질뿐만 아니라 제품가격이 고가이고 또한 3중이상으로 조합되어진 슬라이드 코아가 오차없이 구동하여야하기 때문에 설계시나 제작상에 어려움이 많았으며 생상중에도 작동트러블이 발생하여 생산하는데 지장을 주던 결점이 있었다.In the conventional injection mold, when there are undercuts on the sidewall of the molded part and the hole is to be molded in the molded part, in order to remove these undercuts, a combination of three or more slide cores in the mold is driven to remove the undercut. In addition to the large size, the product price is high and the slide core, which is combined with more than three times, has to be operated without errors. Therefore, there were many difficulties in designing and manufacturing, and there was a drawback that the production trouble occurred during production.
따라서, 본 고안의 이와같은 종래의 결점을 해결하기 위하여 안출된것으로 첨부된 도면에 의하여 그 구성과 작용효과를 설명하면 다음과 같다.Therefore, the configuration and operation effects by the accompanying drawings as devised to solve such a conventional drawback of the present invention is as follows.
상,하고정판(1) (1'), 상,하원판(2) (2'), 하코아(3), 밀판(4), 핀지지판(5), 밀판(6)이 각각 설치되어진 사출 금형에 있어서, 상원판(2)내에 슬라이드 코아(7) (7')를 장착시키면서 슬라이드 코아(7) (7')의 상,하단내로는 스프링(8) (8')을 설치하되 슬라이드 코아(7')에는 핀(9)을 조립시키고 또한 하코아(3')에는 핀안내홈(10)을 형성하고 상원판(2)에는 내부에 조우편(11)이 슬라이딩 되도록 삽지된 슬라이드홀더(12) (12')가 설치되어 있으며 상원판(2)의 외측 일면에는 압절봉(13)이 조립된 실린더(14)가 장착되어진 구성으로 미설명 부호 15는 성형품인 것이다.Injection in which upper and fixed plates (1) (1 '), upper and lower plates (2) and (2'), hacoa (3), mill plates (4), pin support plates (5), and mill plates (6) are installed, respectively. In the mold, while the slide cores 7 and 7 'are mounted in the upper plate 2, the springs 8 and 8' are installed in the upper and lower ends of the slide cores 7 and 7 '. The slide holder 7 is assembled with the pin 9 and the pin guide groove 10 is formed in the hacoa 3 ', and the jaw piece 11 is slid inside the upper plate 2. 12) (12 ') is installed and the outer surface of the upper plate (2) is equipped with a cylinder 14 is assembled with a pressure bar 13, the reference numeral 15 is a molded article.
이와같이 구성된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention configured as described above are as follows.
도면 제1도에 도시된 바와같이 수지의 사출이 끝난 상태에서 수지가 완전히 응고된후 금형의 파팅라인이 열리게 전에 도면 제3도에 도시된 바와같이 실린더(14)가 동작을 시작하게 되어 일단 실린더(14)가 동작을 시작하면 실린더(14)에 의해 압절봉(13)이 후부로 밀림에 따라 압절봉(13)에 의해 상,하로 벌려져 있던 슬라이드 코아(7) (7')가 언더컷의 중심부를 향해 스프링(8) (8')의 탄성력에 의해 움직이게 되면서 슬라이드 홀더(12) (12')내에 슬라이딩삽지되어 있는 조우편(11)의 안내를 받아 1차적으로 언더컷이 제거되는데 이때 이미 성형품(15) 측벽의 구멍은 압절봉(13)의 후퇴로 인하여 언더컷이 제거되었고 이 상태에서 계속해서 도면 제4도에 도시된 바와 같이 실린더(14)가 일정 스트로크만큼 후퇴하게되면 실린더(14)에 의해 동작되는 압절봉(13)의 일부인 압절봉(13)의 턱부위가 조우편(11)의 턱부위를 끌고 슬라이드 홀더(12) (12')의 안래를 압당 2차 언더컷을 제거하기 위해 일정 스트로크만큼 뒤로 후퇴하게됨에 따라 성형품(15)의 언더컷부가 간단하게 제거되면 상원판(2)과 하원판(2')의 분리선인 파팅라인이 열리게 되고 이어서 밀판(4)과 핀지지판(5), 밀판(6)의 작동으로 하코아(3)에 물려있던 성형품(15)이 취출되게된 것으로 본원은 실린더의 정확한 작동을 제거할 수 있고 또한 종래보다 금형 구조가 간단하므로 금형크기가 작아져 제조원가를 줄일수 있을 뿐만 아니라 금형의 품질과 제품의 질을 향상시킬 수 있게 된 것이다.As shown in FIG. 1, the cylinder 14 starts to operate as shown in FIG. 3 before the parting line of the mold is opened after the resin is completely solidified in the state of injection of resin as shown in FIG. When the 14 starts to operate, the slide cores 7 and 7 ', which are opened up and down by the push rods 13 as the push rods 13 are pushed back by the cylinders 14, are subjected to the undercut. Undercut is firstly removed under the guidance of the jaws 11 slidingly inserted into the slide holders 12 and 12 'while being moved by the elastic force of the springs 8 and 8' toward the center. (15) The hole in the side wall was removed to the cylinder 14 when the undercut was removed due to the retraction of the squeezing rod 13 and the cylinder 14 was retracted by a predetermined stroke as shown in FIG. Pressure that is part of the tack bar 13 operated by As the jaw of the cutting rod 13 pulls the jaw of the jaw 11 and retracts the insole of the slide holder 12 (12 ') back by a predetermined stroke to remove the secondary pressure undercut, the molded part 15 When the undercut of the strip is simply removed, the parting line, which is the separation line between the upper plate 2 and the lower plate 2 ', is opened, followed by the operation of the mill plate 4, the pin support plate 5, and the mill plate 6 to form the hacoa (3). The molded article 15, which was bitten by the mold), is removed, and the present invention can remove the exact operation of the cylinder and the mold structure is simpler than the conventional one, so that the mold size is reduced, thereby reducing the manufacturing cost and the quality of the mold. The quality can be improved.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870016233U KR900005728Y1 (en) | 1987-09-24 | 1987-09-24 | Outside undercut articles ejecting device in injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870016233U KR900005728Y1 (en) | 1987-09-24 | 1987-09-24 | Outside undercut articles ejecting device in injection mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR890006581U KR890006581U (en) | 1989-05-13 |
| KR900005728Y1 true KR900005728Y1 (en) | 1990-06-28 |
Family
ID=19268200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019870016233U KR900005728Y1 (en) | 1987-09-24 | 1987-09-24 | Outside undercut articles ejecting device in injection mould |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR900005728Y1 (en) |
-
1987
- 1987-09-24 KR KR2019870016233U patent/KR900005728Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR890006581U (en) | 1989-05-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 19970829 Year of fee payment: 10 |
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| LAPS | Lapse due to unpaid annual fee |