KR0167536B1 - Injection molding mould for pencil case injection molding method and its molding articles - Google Patents
Injection molding mould for pencil case injection molding method and its molding articles Download PDFInfo
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- KR0167536B1 KR0167536B1 KR1019950006449A KR19950006449A KR0167536B1 KR 0167536 B1 KR0167536 B1 KR 0167536B1 KR 1019950006449 A KR1019950006449 A KR 1019950006449A KR 19950006449 A KR19950006449 A KR 19950006449A KR 0167536 B1 KR0167536 B1 KR 0167536B1
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- molding
- mold
- core
- molding material
- stripper plate
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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
- B29C45/26—Moulds
- B29C45/261—Moulds having tubular mould cavities
- B29C45/2612—Moulds having tubular mould cavities for manufacturing tubular articles with an annular groove
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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
- B29C45/0046—Details relating to the filling pattern or flow paths or flow characteristics of moulding material in the mould cavity
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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
- B29C45/26—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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/006—Pencil-barrels
-
- 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
- B29C2045/2683—Plurality of independent mould cavities in a single mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7162—Boxes, cartons, cases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/725—Drawing or writing equipment
- B29L2031/7254—Pencils
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
본 발명은 샤프 색연필 케이스용 사출금형, 성형방법 및 그 성형물에 관한 것으로 특히, 사출 성형기의 호퍼에 합성수지(일예로;ABS,PP,)등의 성형원료를 투입하여 금형의 온도 조정과 성형원료의 성형, 압축 및 성형원료의 량을 계측하여서 성형원료를 사출 및 성형물의 이탈이 한 공정으로 이루어짐과 동시에 한번의 사출성형으로 복수개의 성형물이 설형 될 수 있도록 하여 한 공정에 의하여 대수개의 샤프 색연필 케이스를 성형할 수 있도록 사출금형을 제공하고, 한 공정에 의하여 대수개의 샤프 색연필 케이스를 성형할 수 있도록 성형방법을 제공하고, 한 공정에 의하여 다수개의 샤프 색연필 케이스를 성형하는 제공하는데 있는 것이다.The present invention relates to an injection mold, a molding method, and a molded product for a sharp colored pencil case. In particular, a molding material such as ABS, PP, etc. is added to a hopper of an injection molding machine to adjust the temperature of a mold and to form a molding material. Molding and molding a large number of sharp colored pencil cases by one process by measuring the amount of raw materials and compression and molding materials to make the molding raw materials into injection and release of moldings, and at the same time, forming a plurality of moldings by one injection molding. It is to provide an injection mold to provide, to provide a molding method for molding a number of sharp colored pencil case by one process, and to provide a plurality of sharp colored pencil case by one process.
Description
제1도는 본 발명에 따른 성형금형을 나타낸 일부 단면도.1 is a partial cross-sectional view showing a molding mold according to the present invention.
제2도는 제1도의 고정금형 및 이동금형의 일부 정면도.2 is a partial front view of the stationary mold and the moving mold of FIG.
제3도는 본 발명에 따른 코어부의 측면도.3 is a side view of the core portion according to the present invention.
제4도는 제3도의 A-A선 확대 단면도.4 is an enlarged sectional view taken along the line A-A of FIG.
제5도는 제3도의 B부분에 대한 확대도.5 is an enlarged view of a portion B of FIG.
제6도는 제3도의 C부분에 대한 확대도.6 is an enlarged view of part C of FIG.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 고정금형 2 : 노즐1: fixed mold 2: nozzle
3 : 스프루(Sprue) 4 : 런너(Runner)3: Sprue 4: Runner
5 : 스프루 부시(Sprue Buch) 6 : 상코어5: Sprue Buch 6: Upper core
7 : 캐비티 사이드(Cavity Side) 8 : 터널 게이트7: Cavity Side 8: Tunnel Gate
9 : 스트리퍼 플레이트(Stripper Plate) 10 : 경사진 구멍9: stripper plate 10: inclined hole
11 : 체인 12 : 이동금형11: chain 12: moving mold
13 : 하코어 14 : 냉각수 유입공13: Hacore 14: Cooling water inlet hole
15 : 냉각수 유출공 16 : 경사부15: cooling water outlet hole 16: inclined portion
17 : 가는 탭부 18 : 긴 탭부17: thin tab portion 18: long tab portion
19 : 돌출부 20 : 코어 사이드19: protrusion 20: core side
21 : 위치 결정부 22 : 중공부21: positioning portion 22: hollow portion
23 : 파이프 24 : 내부 구멍23: pipe 24: inner hole
25 : 외부 구멍 26 : 완만한 경사부25: outer hole 26: gentle slope
본 발명은 샤프 색연필 케이스용 사출금형, 성형방법 및 그 성형물에 관한 것으로 특히, 사출 성형기의 호퍼에 합성수지(일예로;ABS, PP,)등의 성형원료를 투입하여서 금형의 온도 조정과 성형원료의 성형, 압축 및 성형원료의 량을 계측하여 성형원료를 사출 및 성형물의 이탈이 되도록 한 공정으로 이루어짐과 동시에 한번의 사출성형으로 복수개의 성형물이 성형 될 수 있도록 하는 샤프 색연필 케이스용 사출금형, 성형방법 및 그 성형물에 관한 것이다.The present invention relates to an injection mold, a molding method, and a molded product for a sharp colored pencil case. In particular, a molding material such as ABS, PP, and the like is added to a hopper of an injection molding machine to adjust the temperature of a mold and to form a molding material. Injection molding for molding sharp pencil case, molding method, and the like, which are formed by measuring the amount of compression and molding raw materials so that the molding raw materials can be injected and separated from the molding, and at the same time, a plurality of moldings can be molded by one injection molding. It relates to a molding.
종래에는 일반적으로 다음과 같은 제조 과정을 거쳐서 샤프 색연필 케이스를 완성하였다.Conventionally, the sharp colored pencil case was completed through the following manufacturing process.
먼저, 사출 성형기에서 일정한 직경으로 압출한 샤프 색연필 케이스용으로 약 2M의 길이로 압출한 것을 납품 받아서 약 13.5Cm로 절단을 하고, 샤프 색연필 케이스의 내주연 양단에 일측으로는 나선부와 타측으로는 흠부를 형성하도록 탭을 낸 내주연에 일정한 피치를 가지는 긴 탭을 내었다.First, it was delivered to the Sharp colored pencil case extruded to a certain diameter from the injection molding machine and was cut to a length of about 2M, and cut to about 13.5 cm, and both sides of the sharp colored pencil case had a spiral portion and a flaw on the other side. Long tabs with a constant pitch were produced on the inner circumference where the tabs were formed to form a portion.
한편, 샤프 색연필 케이스의 내부에 즉, 탭을 낼 때 발생하는 절삭칩(Chip)을 제거하는 세척약을 투여 하고, 세척된 샤프 색연필 케이스의 외주연에 인쇄를 하였다.On the other hand, the cleaning agent for removing the chip (Chip) generated when the tab is released, that is, the inside of the sharp colored pencil case was administered, and printed on the outer periphery of the washed sharp colored pencil case.
상기와 같은 종래의 샤프 색연필 케이스의 제조 공정에 있어서는 각 단계를 순차적으로 수작업에 의존하여 일일이 행하게 되므로 각 단계에 있어서 작업공정과 작업시간이 길어 질 뿐만 아니라 각 단계에서 불량품이 많이 발생되고 또한 불량율이 높게 되면서 작업능률이 저하되는 문제점이 있었다.In the manufacturing process of the conventional sharp colored pencil case as described above, each step is sequentially performed depending on the manual work, so that not only the work process and the work time are long at each step, but also a lot of defective products are generated at each step, and the defective rate is also high. There was a problem that the work efficiency is lowered as high.
또한, 상기와 같은 제조 공정에서 샤프 색연필 케이스의 내주면에 탭을 3단계에 걸쳐서 형성하여야 되므로 이때, 상기와 같은 탭을 내는 과정에서 숙련공이라 하더라도 어려울 뿐만 아니라 한편, 수 작업에 의하여 제조되는 과정이므로 불량율이 많게 되는 실정이다.In addition, since the tab must be formed on the inner circumferential surface of the sharp colored pencil case in three steps in the manufacturing process as described above, it is not only difficult for a skilled worker in the process of producing the tab as described above, but is also a process manufactured by manual labor. There is a lot to do.
그리고 상기와 같은 탭을 내는 과정에서 발생되는 절삭칩을 제거하기 위해서는 세척 단계를 거쳐야 하는 문제점을 배제할 수가 없는 것이다.In addition, in order to remove the cutting chip generated in the tapping process as described above, it is impossible to rule out the problem of having to go through the cleaning step.
본 발명은 상기와 같은 문제점을 감안하여 해소 하고자 안출한 것으로 한 공정에 의하여 다수개의 샤프 색연필 케이스를 성형할 수 있도록 된 사출금형을 제공 하는데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide an injection mold capable of molding a plurality of sharp colored pencil cases by one process.
본 발명의 다른 목적은 한 공정에 의하여 다수개의 샤프 색연필 케이스를 성형할 수 있도록 한 성형방법을 제공하는데 있다.Another object of the present invention is to provide a molding method for molding a plurality of Sharp colored pencil cases by one process.
또한, 본 발명의 또 다른 모적은 한 공정에 의하여 다수개의 샤프 색연필 케이스를 성형하여 얻는 성형물을 제공하는데 있다.Further, another aspect of the present invention is to provide a molding obtained by molding a plurality of sharp colored pencil cases by one process.
이하 첨부된 도면에 의하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
제1도는 본 발명에 따른 성형금형을 나타낸 일부 단면도이며, 제2도는 제1도의 고정금형 및 이동금형의 일부 정면도를 나타낸 것이다.1 is a partial cross-sectional view showing a molding mold according to the present invention, Figure 2 shows a partial front view of the fixed mold and the moving mold of FIG.
고정금형(1)에는 사출 성형기(도시하지 않았음)로부터 성형재료가 사출되는 노즐(2)과, 이 노즐(2)에 접하고 스프루(Sprue)(3)을 통하여 런너(Runner)(4)에 연결되는 스프루 부시(Sprue Bush) (5)와 상기 런너(4)를 통해 상코어(6)의 캐비티 사이드(Cavity Side)(7)로 원료가 유입되도록 터널 게이트(8)를 구성하고, 스트리퍼 플레이트(Srsipper Plate)(9)에는 상기 상코어(6)에 대응되는 경사진 구멍(10)이 뚫어져 있고, 일측으로 상기 고정금형(1)과 체인(11)으로 연결시켜서 일정한 거리만을 이동하게 구성하고, 이동금형(12)에는 하코어(13)를 고정 시키되 이하코어(13)는 냉각수 유입공(14) 및 냉각수 배출공(15)과 연결되게 구성한다.The stationary mold 1 includes a nozzle 2 through which a molding material is injected from an injection molding machine (not shown), and a runner 4 in contact with the nozzle 2 and through a sprue 3. Tunnel gate (8) is configured such that raw material flows into cavity side (7) of upper core (6) through sprue bush (5) and runner (4) connected to An inclined hole 10 corresponding to the upper core 6 is drilled in the stripper plate 9, and the fixed mold 1 and the chain 11 are connected to one side to move only a predetermined distance. The lower core 13 is fixed to the movable mold 12, but the core 13 is configured to be connected to the coolant inlet 14 and the coolant outlet 15.
제3도는 본 발명에 따른 코어부의 측면도를 나타낸 것이다.Figure 3 shows a side view of the core portion according to the present invention.
상기 하코어(13)는 상기 경사진 구멍(10)에 접촉되는 경사부(16)와 가는 탭부(17), 긴 탭부(18) 및 돌출부(19)로 이루어진 코어 사이드(20)와 위치 결정부(21)로 구성되고, 중앙에는 중공부(22)를 형성한다.The lower core 13 has a core side 20 and a positioning portion formed of an inclined portion 16, a thin tab portion 17, an elongated tab portion 18, and a protrusion 19 that are in contact with the inclined hole 10. It consists of 21 and forms the hollow part 22 in the center.
또한, 제4도에 도시한 바와 같이 상기. 하코어(13)의 중앙에 형성된 중공부(22)에 파이프(23)를 삽입하여 형성되는 내부구멍(24)에는 냉각수 유입공(14)과 외부 구멍(25)에는 냉각수 배출공(15)과 연결되게 구성한다.In addition, as shown in FIG. The inner hole 24 formed by inserting the pipe 23 into the hollow portion 22 formed in the center of the lower core 13 has a coolant inlet 14 and an outer hole 25 with a coolant outlet 15. Configure to be connected.
제5도 및 제6도에 도시한 바와 같이 하코어(13)의 코어 사이드(20)에 형성된 가는 탭부(17), 긴 탭부(18) 및 돌출부(19)를 형성하여 한쪽 방향으로 완만한 경사부(26)를 가지도록 구성한다.As shown in FIGS. 5 and 6, the slanted tab portion 17, the long tab portion 18, and the protrusions 19 formed on the core side 20 of the lower core 13 are formed to have a gentle slope in one direction. It is configured to have a portion 26.
상기와 같이 구성된 본 발명의 샤프 색연필 케이스의 성형 방법을 설명하면 다음과 같다.The shaping | molding method of the sharp colored pencil case of this invention comprised as mentioned above is as follows.
사출 성형기(도시하지 않음)의 호퍼에 합성수지(일예로;ABS, PP,)등의 성형재료를 투입하여 성형재료의성형, 압축 및 성형재료의 량을 계측하고, 일정한 온도로 금형의 온도를 조정하는 준비공정이 완료된 후 상기 사출성형기의 노즐(2)을 통하여 성형완료를 사출하는 사출공정에 의하여 사출되는 성형재료는 스프루 부시(5)의 스프루(3)를 통하여 런너(4)에 이르게 된다.Molding materials such as synthetic resins (eg, ABS, PP, etc.) are injected into the hopper of an injection molding machine (not shown) to measure the molding, compression, and molding materials of the molding material, and to adjust the temperature of the mold to a constant temperature. After the preparation process is completed, the molding material injected by the injection process of injecting the molding completion through the nozzle 2 of the injection molding machine leads to the runner 4 through the sprue 3 of the sprue bush 5. do.
이때, 런너(4)에 이른 성형재료는 상코어(6)의 터널 게이트(8)를 통하여 상코어(6)의 캐비티 사이드(7)와 하코어(13)의 코어 사이드(20) 사이로 충전시킨다.At this time, the molding material reaching the runner 4 is filled between the cavity side 7 of the upper core 6 and the core side 20 of the lower core 13 through the tunnel gate 8 of the upper core 6. .
상기와 같이 충전의 공정이 완료되면 이동금형(12)의 냉각수 유입공(14)을 통해 냉각수를 주입하면 이때, 냉각수는 하코어(13)의 내부구멍(24)으로 들어가 외부구멍(25)을 통해 냉각수 배출공(15)으로 배출된다.When the filling process is completed as described above, when the coolant is injected through the coolant inlet 14 of the moving mold 12, the coolant enters the inner hole 24 of the lower core 13 and opens the outer hole 25. It is discharged through the cooling water discharge hole (15).
상기와 같이 냉각공정을 거친 후 이동금형(12) 및 스트리퍼 플레이트(9)가 동시에 후진함과 아울러 이동금형(12)의 하코어(13)에 성형된 성형물이 상기 고정금형(1)의 캐비티 사이드(7)에서 이탈되고, 스트리퍼 플레이드(9)와 고정금형(1) 사이의 체인(11)에 의하여 스트리퍼 플레이트(9)는 정지되고, 이동금형(12)은 계속하여 후진하면 이때, 정지된 스트리퍼 플레이트(9)와 계속 후진하는 이동금형(12)에 의하여 상기, 성형물은 상기 스트리퍼 플레이트(9)에 걸리므로 상기 하코어(13)의 코어 사이드(20)에서 성형된 성형물을 이탈시키는 이탈공정에 의하여 성형물의 성형이 완료되는 것이다.After the cooling process as described above, the movable mold 12 and the stripper plate 9 are simultaneously retracted, and the molding formed on the lower core 13 of the movable mold 12 is the cavity side of the fixed mold 1. And the stripper plate 9 is stopped by the chain 11 between the stripper plate 9 and the stationary mold 1, and the moving mold 12 continues to retreat. The stripping plate (9) and the moving mold (12) that continues to retreat, the molding is caught on the stripper plate (9), so the separation process of leaving the molded product from the core side 20 of the lower core (13) By this, molding of the molding is completed.
상기와 같이 성형된 성형물을 이탈 시키는 이탈 공정에 있어서 성형물은 스트리퍼 플레이트(9)에 의해 강제로 빼기가 되는 것이다.In the detachment process of detaching the molded article formed as described above, the molded article is forcibly removed by the stripper plate 9.
이와 같이 강제 빼기를 할 때 성형물의 내주연에 형성된 가는 탭부(17), 긴 탭부(18) 및 흠부가 정확하게 성형되도록 하코어(13)의 코어 사이드(20)인 가는 탭부(17), 긴탭부(18) 및 돌출부(19)의 일측면에 각각 완만한 경사부(26)가 형성 되는 것이 바람직하다.The thin tab 17, the long tab portion 17, which is the core side 20 of the lower core 13, is formed so that the thin tab portion 17, the long tab portion 18, and the flaw formed on the inner circumference of the molded article are formed in such a manner as forcible removal. It is preferable that gentle slopes 26 are formed on one side of the 18 and the protrusion 19, respectively.
상기와 같이 하코어(13)에서 강제적으로 성형물(샤프 색연필 케이스)의 빠짐과 동시에 런너(4)에서 떨어지면서 제품이 완료되는 것이다.As described above, the product is completed by forcibly removing the molded product (sharp colored pencil case) from the lower core 13 and falling off the runner 4 as described above.
그러므로 상기와 같은 공정으로 한번에 행하므로 성형물(샤프 색연필 케이스)이 복수개가 성형된다.Therefore, a plurality of moldings (sharp colored pencil cases) are molded because the process is performed at one time as described above.
본 발명은 이상에서 예시되고 설명한 것에 의하여 한정되는 것은 아니고, 본 발명의 기술범위내에서 더 많은 실시예가 가능함은 물론 하코어 및 코어 사이드의 배치는 본 발명의 동작에 가장 큰 영향을 주며 성형방법에 따라 달라져야 함은 당연하며 특히, 코어 사이드의 가는 탭부, 긴 탭부 및 돌출부의 일측면에 각각 완만한 경사부를 형성 시켜서 하코어에서 성형된 성형물의 강제빼기를 용이하게 할 수 있는 것이 바람직하다.The present invention is not limited to the examples illustrated and described above, and more embodiments are possible within the technical scope of the present invention, and the arrangement of the lower cores and the core side has the greatest influence on the operation of the present invention and the molding method. Of course, it is desirable to be able to vary, and in particular, it is preferable to form a gentle slope on each side of the thin tab portion, the long tab portion and the protrusion of the core side to facilitate the forced removal of the molded product from the lower core.
상기와 같이 본 발명은 사출 성형기의 호퍼에 합성수지의 성형완료를 투입하여서 금형의 온도 조정과 성형원료의 성형, 압축 및 성형원료의 량을 계측하여서 성형원료를 사출 및 성형물의 이탈이 한 공정으로 이루어짐과 동시에 한번의 성형으로 복수개의 성형물이 성형 될 수 있도록 하는 사출, 성형방법으로 제조함으로써 종래에서와 같이 각 제조공정을 수작업에 의하여 제조하는 방법보다 불량율이 전혀 없을 뿐만 아니라 한 공정에 의하여 복수개의 성형물이 동시에 제조됨으로서 작업능률과 작업시간을 단축할 수 있는 것이다.As described above, the present invention is a process in which injection molding and release of molding materials are carried out by inputting molding completion of synthetic resin into the hopper of an injection molding machine and measuring the temperature of the mold and measuring the molding, compression and molding materials of the molding materials. At the same time, it is manufactured by injection and molding method which allows a plurality of moldings to be molded by one molding, and there is no defect rate as compared with the method of manufacturing each manufacturing process by hand as in the prior art, and a plurality of moldings by one process At the same time, the work efficiency and work time can be shortened by being manufactured.
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KR1019950006449A KR0167536B1 (en) | 1995-03-25 | 1995-03-25 | Injection molding mould for pencil case injection molding method and its molding articles |
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KR1019950006449A KR0167536B1 (en) | 1995-03-25 | 1995-03-25 | Injection molding mould for pencil case injection molding method and its molding articles |
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KR0167536B1 true KR0167536B1 (en) | 1999-03-20 |
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