KR200444793Y1 - Ejecting structure of injection molding - Google Patents
Ejecting structure of injection molding Download PDFInfo
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- KR200444793Y1 KR200444793Y1 KR2020070017788U KR20070017788U KR200444793Y1 KR 200444793 Y1 KR200444793 Y1 KR 200444793Y1 KR 2020070017788 U KR2020070017788 U KR 2020070017788U KR 20070017788 U KR20070017788 U KR 20070017788U KR 200444793 Y1 KR200444793 Y1 KR 200444793Y1
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- South Korea
- Prior art keywords
- block
- groove
- slide core
- spring
- undercut
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 17
- 238000000605 extraction Methods 0.000 claims abstract description 19
- 238000003780 insertion Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 5
- 230000000875 corresponding Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 206010009839 Coeliac disease Diseases 0.000 description 1
- 206010025476 Malabsorption Diseases 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
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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
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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
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
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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
- B29C45/4478—Removing or ejecting moulded articles for undercut articles using non-rigid undercut forming elements, e.g. elastic or resilient
-
- 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
- B29C2045/4492—Removing or ejecting moulded articles for undercut articles preventing damage or deformation of undercut articles during ejection
Abstract
본 고안은 사출성형장치에서 제품 흡착 방지를 위한 취출 장치에 관한 것으로, 가동측에 설치되고 고정측 형판에 경사지게 돌출형성된 작동캠에 의하여 좌/우 이동하며 선단은 제품의 하부 언더컷부를 형성하는 슬라이드 코어, 가동측 형판에서 금형의 측부를 형성하며 밀핀과 일체로 연결되어 승/하강하는 취출블록, 상기한 취출블록의 내부에 하부 언더컷부와 수평으로 형성된 삽입홈, 상기한 삽입홈의 내측에 설치된 스프링, 삽입홈의 스프링 외측으로 설치되어 슬라이드 코어와 스프링에 의하여 위치가 제어되는 취출블록밀핀으로 구성되는 사출성형장치에서 제품 흡착 방지를 위한 취출 장치에 의하여 제품의 높이가 높더라도 취출블록에 제품이 흡착되지 않고 분리가 용이하도록 한 것이다.The present invention relates to a take-out device for preventing the adsorption of the product in the injection molding apparatus, the slide core is moved left / right by an operation cam installed on the movable side and protruded obliquely to the fixed side template, the front end of the slide core to form a lower undercut portion of the product In the movable side template, the side of the mold is formed and connected to the mil pin and connected to the lifting block, the lifting block, the insertion groove formed horizontally with the lower undercut portion in the inside of the extraction block, the spring installed inside the insertion groove The product is adsorbed to the ejection block even if the height of the product is high by the ejection device for preventing product adsorption in the injection molding apparatus consisting of a slide core and a ejection block mill pin whose position is controlled by the spring. It is to facilitate separation.
흡착, 슬라이드 코어, 스프링, 밀핀 Adsorption, slide core, spring, milpin
Description
본 고안은 사출성형장치에서 제품 흡착 방지를 위한 취출 장치에 관한 것으로, 보다 상세하게는 성형품의 높이가 높아 수지의 자체 수축력 및 탄성에 의하여 제품이 코어에 흡착되는 것을 방지하여 제품의 성형불량이 발생되지 않으며서 제품 취출이 용이하도록 하는 사출성형장치에서 제품 흡착 방지를 위한 취출 장치에 관한 것이다.The present invention relates to a take-out device for preventing the product adsorption in the injection molding apparatus, more specifically, the height of the molded product is prevented from being adsorbed to the core by the self-shrinkage force and elasticity of the resin to prevent the molding of the product It relates to a take-out device for preventing the adsorption of the product in the injection molding apparatus to facilitate the product taking out.
일반적으로 사출성형은 열가소성 플라스틱 또는 열경화성 플라스틱 성형재료를 사출성형기 내에서 가열 용융한 후, 스크루를 통해 사출금형 내로 가압 주입하여 충전하고, 이를 고화 또는 경화하여 성형품으로서 꺼내는 성형방법이다.In general, injection molding is a molding method in which a thermoplastic or thermosetting plastic molding material is heated and melted in an injection molding machine, and then pressed by injection into a injection mold through a screw, and solidified or cured and taken out as a molded product.
상기 사출성형용 금형에 있어서, 용융된 재료는 스프루, 런너 및 게이트 등의 주입공간을 통하여 성형품의 성형공간인 금형 내로 주입되어 성형되고, 성형이 완료된 후에는 밀판이 동작하여 밀핀이 승강하면서, 게이트와 성형품의 연결부분이 분리되어, 런너와 게이트 및 성형품이 분리되면서 취출된다.In the injection molding mold, the molten material is injected into the mold, which is the molding space of the molded article, through injection spaces such as sprues, runners, and gates, and after the molding is completed, the mill is operated to raise and lower the mill pin. The connection portion of the gate and the molded article is separated, and the runner, the gate, and the molded article are separated and taken out.
이와 같은 성형품의 취출 과정에서 성형품의 높이가 높을 경우에는 수지 자체의 수 축력 및 탄성에 의하여 제품이 코어에 흡착되면서 제품의 취출과정에서 제품이 금형으로부터 원활하게 분리되지 못하여 성형불량등이 발생되는 문제점이 있었다.If the height of the molded product is high during the ejection process of the molded article, the product is adsorbed to the core due to the shrinkage force and elasticity of the resin itself. There was this.
상기한 문제점을 해결하기 위한 본 고안의 목적은 성형품의 높이가 높아 수지의 자체 수축력 및 탄성에 의하여 제품이 코어에 흡착되는 것을 방지하고자, 취출블록에 스프링과 슬라이드 코어에 의하여 위치제어되는 취출블록밀핀을 설치하여 제품의 취출시 취출블록밀핀이 제품을 취출블록으로부터 분리시키도록 한 사출성형장치에서 제품 흡착 방지를 위한 취출 장치에 관한 것이다.The object of the present invention for solving the above problems is that the height of the molded article to prevent the product is adsorbed to the core by the self-retracting force and elasticity of the resin, the extraction block mill pin is controlled by the spring and the slide core in the extraction block It relates to a take-out device for preventing the adsorption of the product in the injection molding apparatus that is installed so that the extraction block mill pin separates the product from the take-off block when taking out the product.
상기한 목적을 달성하기 위한 본 고안의 특징은, 가동측에 설치되고 고정측 형판에 경사지게 돌출형성된 작동캠에 의하여 좌/우 이동하며 선단은 제품의 하부 언더컷부를 형성하는 슬라이드 코어, 가동측 형판에서 금형의 측부를 형성하며 밀핀과 일체로 연결되어 승/하강하는 취출블록, 상기한 취출블록의 내부에 하부 언더컷부와 수평으로 형성된 삽입홈, 취출블록에 볼트와 체결판을 포함하는 체결수단에 의하여 일체로 설치되어 상기한 삽입홈의 내부로 위치되는 가이드봉, 상기한 삽입홈의 가이드봉 외주에 설치된 스프링, 삽입홈의 스프링 외측으로 설치되어 슬라이드 코어와 스프링에 의하여 위치가 제어되는 취출블록밀핀으로 구성되는 사출성형장치에서 제품 흡착 방지를 위한 취출 장치에 의하여 제품의 높이가 높더라도 취출블록에 제품이 흡착되지 않고 분리가 용이하도록 한 것이다.Features of the present invention for achieving the above object, the left and right moving by the operation cam installed on the movable side and protruding obliquely formed on the fixed side template, the front end of the slide core, the movable side template to form a lower undercut portion of the product The draw block which forms the side of the mold and is connected integrally with the mil pin to move up and down, the insertion groove formed horizontally with the lower undercut portion inside the draw block, by a fastening means including a bolt and a fastening plate in the draw block; The guide rod is integrally installed and positioned inside the insertion groove, the spring is installed on the outer periphery of the guide rod of the insertion groove, and the extraction block mill pin is installed outside the spring of the insertion groove to control the position by the slide core and the spring. Even if the height of the product is high by the extraction device for preventing the adsorption of the product in the injection molding device, It is intended to facilitate separation without adsorption.
상기한 바와 같은 본 고안에 의하면 제품의 높이가 높은 경우에도 취출블록밀핀이 슬라이드 코어와 스프링에 의하여 취출과정에서 제품을 밀어서 취출블록과 제품이 분리되므로, 제품의 취출이 용이하고 제품이 취출블록에 붙어서 성형불량이 발생되는 문제점을 해소하는 효과가 있다.According to the present invention as described above, even when the height of the product is high, the takeout block mill pin pushes the product in the taking out process by the slide core and the spring to separate the takeout block and the product. There is an effect of eliminating the problem of poor molding caused by sticking.
아울러, 상기한 취출블록밀핀의 위치를 제어하는 슬라이드 코어는 제품의 하부 언더컷도 동시에 해결함으로써, 간단한 장치로 제품의 언더컷과 분리를 처리할 수 있도록 하는 효과가 있다. In addition, the slide core for controlling the position of the take-out block mill pin is also effective to solve the undercut and separation of the product by a simple device by solving the bottom undercut of the product at the same time.
이하 본 고안의 실시예를 첨부된 도면을 참조하여 살펴본다.Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
도 1은 본 고안에 따른 사출성형장치에서 제품 흡착 방지를 위한 취출 장치를 나타내는 단면도이고, 도 2는 본 고안에 따른 사출성형장치에서 제품 흡착 방지를 위한 취출 장치의 작동예를 나타내는 단면도이다.1 is a cross-sectional view showing a take-out device for preventing the product adsorption in the injection molding apparatus according to the present invention, Figure 2 is a cross-sectional view showing an operation example of the take-out device for preventing the adsorption of the product in the injection molding apparatus according to the present invention.
본 고안에 따른 사출성형장치에서 제품 흡착 방지를 위한 취출 장치는 고정측에 경사지게 하부로 일체로 돌출형성된 작동캠(110), 가동측에 좌/우 이동가능하도록 설치되어 전방에 언더컷 부분이 형성되고 상기한 작동캠(110)이 삽입되는 경사진 제 1작동공(212)이 형성되어 상기한 작동캠(110)에 의하여 좌/우 이동하여 성형품의 하부 측부 언더컷을 처리하는 슬라이드 코어(210)와, 가동측에서 금형의 측부를 형성하며 밀핀(220)과 일체로 연결되어 승/하강하는 취출블록(230), 상기한 취출블록(230)의 내부에 상기한 슬라이드 코어(210)의 언더컷 부분과 대응되는 위치에 수평으로 천공된 삽입홈(232), 상기한 삽입홈(232)의 내측에 설치된 스프링(234), 삽입홈(232)의 스프링 외측으로 설치되어 슬라이드 코어(210)와 스프링(234)에 의하여 위치가 제어되고 슬라이드 코어(210)와 접하여 언더컷을 형성하는 취출블록밀핀(236)으로 구성된다.In the injection molding apparatus according to the present invention, the take-out device for preventing product adsorption is installed to be movable to the left and right movement cam 110, which is integrally protruded downwardly inclined to the fixed side, the undercut portion is formed in the front A slide core 210 for forming the inclined first operation hole 212 into which the operation cam 110 is inserted and moving left / right by the operation cam 110 to process the underside undercut of the molded article; On the movable side, the side of the mold is formed and connected to the mill pin 220 integrally with the take-out block 230, the undercut portion of the slide core 210 and the inside of the take-out block 230 and Insertion groove 232 horizontally punched in the corresponding position, the spring 234 installed on the inside of the insertion groove 232, the spring of the insertion groove 232 is installed outside the slide core 210 and the spring 234 Position is controlled by the slide core ( It is composed of a take-out block mill pin 236 in contact with 210 to form an undercut.
상기한 구성에서 취출블록밀핀(236)의 설치예를 보다 상세하게 살펴보면, 우선 상기한 삽입홈(232)은 중간에 단턱(232a)이 형성되어 슬라이드 코어(210)측이 좁고 반대측이 넓게 형성되며, 상기한 취출블록밀핀(236)의 후방에는 전/후진시에 단턱(232a)과 맞물리도록 플랜지(236a)가 측부로 돌출형성되고 후면에는 내측으로 가이드홈(236b)이 형성되며, 상기한 가이드홈(236b)의 내부로는 가이드봉(230a)이 삽입되고, 상기한 가이드봉(230a)의 외측에 스프링(234)이 설치되며, 가이드봉(230a)의 취출블록밀핀(236) 반대측 종단은 취출블록(230)에 볼트(230b)와 체결판(230c) 등의 체결수단에 의하여 일체로 설치된다.Looking at the installation example of the take-out block mill pin 236 in the above configuration in more detail, first, the insertion groove 232 is formed with a stepped portion (232a) in the middle of the slide core 210 side is narrow and the opposite side is formed wide The rear of the take-out block mill pin 236 is formed with a flange 236a protruding to the side so as to engage with the step 232a at the time of forward / reverse, and a guide groove 236b is formed at the rear side thereof. A guide rod 230a is inserted into the groove 236b, a spring 234 is installed on the outside of the guide rod 230a, and an end of the guide rod 230a opposite to the extraction block mill pin 236. The extraction block 230 is integrally installed by fastening means such as a bolt 230b and a fastening plate 230c.
이때, 상기한 취출블록밀핀(236)은 최대한 후퇴한 상태에서 가이드봉(230a)의 종단과 추출블록밀핀(236)의 가이드홈(236b)내주면이 닿게 되고, 상기한 삽입홈(232)의 단턱(232a)과 플랜지(236a)는 이격되게 위치되고, 취출블록밀핀(236)의 전진시에는 가이드봉(230a)의 종단과 추출블록밀핀(236)의 가이드홈(236b)내주면이 이격되고, 상기한 삽입홈(232)의 단턱(232a)과 플랜지(236a)는 맞물리게 되어 취출블록밀핀(236)의 이동이 제어된다.At this time, the extraction block mill pin 236 is in contact with the end of the guide rod 230a and the inner peripheral surface of the guide groove 236b of the extraction block mill pin 236 in the retracted state as possible, the step of the insertion groove 232 232a and the flange 236a are spaced apart from each other, and when the extraction block mill pin 236 is advanced, the end of the guide rod 230a and the inner circumferential surface of the guide groove 236b of the extraction block mill pin 236 are spaced apart from each other. The step 232a of the insertion groove 232 and the flange 236a are engaged to control the movement of the extraction block mill pin 236.
이와 같이 구성된 본 고안의 작동예를 살펴보면, 우선 사출성형장치가 도 1과 같이 닫힌 상태에서 상/하로 형개 작동하면 도 2에 나타내는 바와 같이 슬라이드 코어(230)가 작동캠(110)에 의하여 좌측으로 후퇴함과 동시에 상기한 슬라이드 코어(230)에 맞물려서 위치가 고정된 취출블록밀핀(236)이 스프링(234)의 텐션에 의하여 좌측으로 전진하게 되고, 이에 따라 취출블록밀핀(236)은 제품의 내측에서 제품을 왼쪽으로 밀게 되므로, 제품은 취출블록(230)과 간격을 갖게 된다.Looking at the operation example of the present invention configured as described above, first, when the injection molding apparatus is operated to open up / down in the closed state as shown in Figure 1 as shown in Figure 2 slide core 230 to the left by the operation cam 110 At the same time as the retracted slide block 230 is engaged with the slide core 230, the fixed position of the extraction block mill pin 236 is advanced to the left by the tension of the spring 234, and thus the extraction block mill pin 236 is the inside of the product Since the product is pushed to the left, the product will have a gap with the takeout block 230.
그리고, 이 과정에서 상기한 취출블록(230)은 밀핀(220)에 의하여 승강하게 되므로 제품(Q)은 가동측 금형으로부터 분리된다.In this process, the extraction block 230 is lifted by the mill pin 220, so that the product Q is separated from the movable side mold.
도 1은 본 고안에 따른 사출성형장치에서 제품 흡착 방지를 위한 취출 장치를 나타내는 단면도.1 is a cross-sectional view showing a take-out device for preventing product adsorption in the injection molding apparatus according to the present invention.
도 2는 본 고안에 따른 사출성형장치에서 제품 흡착 방지를 위한 취출 장치의 작동예를 나타내는 단면도.Figure 2 is a cross-sectional view showing an operation example of the take-out device for preventing the product adsorption in the injection molding apparatus according to the present invention.
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
110 : 작동캠 210 : 슬라이드 코어110: working cam 210: slide core
220 : 밀핀 230 : 취출블록220: Milfin 230: drawing block
232 : 삽입홈 234 : 스프링232: insertion groove 234: spring
236 : 취출블록밀핀236: extraction block mill pin
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| Application Number | Priority Date | Filing Date | Title |
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| KR2020070017788U KR200444793Y1 (en) | 2007-11-03 | 2007-11-03 | Ejecting structure of injection molding |
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| KR2020070017788U KR200444793Y1 (en) | 2007-11-03 | 2007-11-03 | Ejecting structure of injection molding |
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| KR20090004320U KR20090004320U (en) | 2009-05-08 |
| KR200444793Y1 true KR200444793Y1 (en) | 2009-06-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700086A (en) * | 2012-05-21 | 2012-10-03 | 昆山鑫泰利精密模具有限公司 | Efficient taper pin anti-sticking part molding mechanism and efficient anti-sticking part molding mould |
| CN109551718A (en) * | 2018-11-02 | 2019-04-02 | 浙江工商职业技术学院 | A kind of pulled core structure three times of mold |
-
2007
- 2007-11-03 KR KR2020070017788U patent/KR200444793Y1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700086A (en) * | 2012-05-21 | 2012-10-03 | 昆山鑫泰利精密模具有限公司 | Efficient taper pin anti-sticking part molding mechanism and efficient anti-sticking part molding mould |
| CN109551718A (en) * | 2018-11-02 | 2019-04-02 | 浙江工商职业技术学院 | A kind of pulled core structure three times of mold |
| CN109551718B (en) * | 2018-11-02 | 2021-03-09 | 浙江工商职业技术学院 | Cubic structure of loosing core of mould |
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| KR20090004320U (en) | 2009-05-08 |
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