KR970001247Y1 - Double clamping apparatus for injection moulding machining - Google Patents

Double clamping apparatus for injection moulding machining Download PDF

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Publication number
KR970001247Y1
KR970001247Y1 KR2019930022023U KR930022023U KR970001247Y1 KR 970001247 Y1 KR970001247 Y1 KR 970001247Y1 KR 2019930022023 U KR2019930022023 U KR 2019930022023U KR 930022023 U KR930022023 U KR 930022023U KR 970001247 Y1 KR970001247 Y1 KR 970001247Y1
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South Korea
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mold
ram
cylinder
primary
clamping
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KR2019930022023U
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Korean (ko)
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KR950011107U (en
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송선식
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금성전선 주식회사
홍종선
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/64Mould opening, closing or clamping devices
    • B29C45/67Mould opening, closing or clamping devices hydraulic
    • B29C45/6764Mould opening, closing or clamping devices hydraulic using hydraulically connectable chambers of the clamping cylinder during the mould opening and closing movement
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/221Injection mold closing and locking clamp, wedge or retention means

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

내용없음No content

Description

사출성형기의 이중 형체 장치Dual Clamping Device of Injection Molding Machine

제1도는 종래의 일 실시예로서,1 is a conventional embodiment,

(a)는 형체 장치가 후퇴된 상태를 도시한 도면.(a) is a figure which shows the state in which the clamping apparatus was retracted.

(b)는 형체 장치가 전진된 상태를 도시한 도면.(b) shows a state where the mold clamping device is advanced;

제2도는 본 고안에 관한 실시예도로서,2 is an embodiment of the present invention,

(a)는 형체 장치가 후퇴된 상태를 도시한 도면.(a) is a figure which shows the state in which the clamping apparatus was retracted.

(b)는 형체 장치가 전진된 상태를 도시한 도면.(b) shows a state where the mold clamping device is advanced;

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

12 : 1차 형체램 22 : 2차 형체램12: primary clamp ram 22: secondary clamp ram

221 : 1차 유압라인221: 1st hydraulic line

본 고안은 사출성형기의 성형용 암,수 금형을 개폐시키는 이중형체 장치에 관한 것으로서, 더욱 상세하게는 부스타 램식 형체 장치의 형체램의 둘레에 또하나의 램을 두어 이중구조의 형체램을 형성하므로 형체램의 크기를 축소시키고 형체 개,폐시의 속도를 신속하게 할수 있도록 한 사출성형기의 이중 형체 장치에 관한 것이다.The present invention relates to a double mold device for opening and closing the molding female and male molds of the injection molding machine, and more particularly, by forming another ram around the mold ram of the booster ram type clamping device, The present invention relates to a dual mold clamping device of an injection molding machine that reduces the size of a mold clamping mold and speeds up a mold opening and closing.

일반적으로 사출성형기의 형체장치로는 직압식 및 토글식이 대표적인 것이지만, 이밖에도 직압복합식, 메커니컬 로크식 등이 있다. 이것들의 형체기구는 각각의 구체적인 작동방법이 서로 다르지만 거의가 유압식을 이용하여 구동되어 지고 있는바, 토글식 형체장치의 작동은 인간이 어떤 무거운 물건을 손으로 눌러 움직일때 팔꿈치를 굽혀서 힘이 나오는 것과 유사한 개념으로 이루어졌고, 직압식 형체장치는 왕복동형 피스톤 램에 유압을 가하여 이것을 전진하거나 후퇴시키도록한 것이 기본적인 구조이다.In general, as the clamping apparatus of the injection molding machine, a direct pressure type and a toggle type are typical, but there are also a direct pressure compound type and a mechanical lock type. Each of these clamping mechanisms is different from each other, but almost all of them are driven by hydraulic pressure. Toggle clamping mechanisms operate by bending elbows when a person presses a heavy object by hand. In a similar concept, the direct pressure clamping device is designed to apply hydraulic pressure to the reciprocating piston ram to move it forward or backward.

또한 직압식 형체장치에 있어서는 복동식 피스톤 램식과 부스타램식 형체장치가 있는데, 이에 대한 부스타 램식 형체 장치를 살펴보면 제1도에 도시한 바와같이 형체실린더의 밑면에 고정되어져 있는 직경이 가는 부스타램을 형체램의 중심에 압입하고, 실린더의 헤드부에는 형체램(20)이 전진되어 형성되어진 공간으로 기름이 유입되도록 기름탱크와 연결된 포오트(100)와 형 폐쇄를 완료한 형체에 금형(200)을 견고하게 체부하기 위한 프리필 밸브(30)를 설치하도록 구성된 것으로, 이의 동작관계는 도면 제1도의 (b)에서와 같이 부스타램(40)의 내부로 고유압을 넣어 형체램(20)내에 설치되어진 소직경의 램실린더(200) 부분을 충진하고 이것에 의해 형체램(20)을 전진시켜 형을 폐쇄한다.In addition, there are double-acting piston ram type and booster ram type clamping devices in the direct pressure type clamping device. As shown in FIG. 1, a bust ram having a small diameter fixed to the bottom of the mold cylinder is shaped as shown in FIG. The mold 200 is press-fitted into the center of the ram, and the mold 200 is connected to the pot 100 connected to the oil tank and the mold completed closing the mold so that oil flows into the space formed by the mold ram 20 being advanced in the head of the cylinder. It is configured to install a pre-fill valve 30 for a solid body, its operation relationship is installed in the mold clamp 20 by putting a high pressure into the boot ram ram 40 as shown in (b) of FIG. The small diameter ram cylinder 200 is filled, thereby advancing the mold ram 20 to close the mold.

이때 형체램(20)의 전진에 의해 형체 실린더(10)는 진공상태가 되므로 포오트(100)를 통하여 기름탱크에서 기름을 흡인시켜 형체실린더(10)를 채운다.At this time, since the mold cylinder 10 is in a vacuum state by the advancing of the mold ram 20, the oil is sucked from the oil tank through the pot 100 to fill the mold cylinder 10.

형폐쇄를 마치게 되면 프리필밸브(30)에 고압유가 가해져 이것에 의해 프리필밸브(30)가 전방으로 전진하여 포오트(100)를 닫고 형체실린더(10)를 차단하여 형체실린더(10)는 고압으로 되어 전압력을 가지고 금형(202)을 체부하게 된다.When the mold closing is completed, the high pressure oil is applied to the prefill valve 30, which causes the prefill valve 30 to move forward to close the pot 100, shut off the mold cylinder 10, and the mold cylinder 10 to a high pressure. Thus, the mold 202 is sifted with a high voltage force.

또한 상기한 상태에서 후퇴시에는 포오트(100)와 부스터램(40)의 유압을 개방한후 후진 유압라인(101)에 유압을 가하면 형체램(20)은 후진하여 제1도의 (a)와 같은 상태로 금형(20)을 개방하도록 동작하는 것이다.In addition, when retracting in the above state, when the hydraulic pressure of the port 100 and the booster ram 40 is opened, and the hydraulic pressure is applied to the reverse hydraulic line 101, the clamping ram 20 moves backward to move to (a) of FIG. The mold 20 is operated to open in the same state.

그러나 상기와 같은 종래의 단일 램으로서 형체를 해부하게 되는 구성은 부스타 램식 형체 장치의 전체 길이가 길어지는 관계로 크기를 줄이는데 한계가 있게 되며, 그에따른 부피 및 중량의 증가로 인하여 금형의 고속 개폐 행정에서 가능한 고속조건을 만족하게 할수 없고, 아울러 금형을 폐쇄하고 이것을 다시 체부했을때 제로에 가까운 순간적인 시간에 큰힘을 발생시켜야 하는 요건을 충족시키지 못하는 단점이 있었다.However, the configuration in which the mold is dissected as a conventional single ram as described above has a limitation in reducing the size due to the increase in the overall length of the booster ram type clamping device, and the rapid opening and closing stroke of the mold due to the increase in volume and weight. It was not possible to meet the high-speed conditions possible at the same time, and also failed to meet the requirement of generating a large force in a moment close to zero when the mold was closed and re-seated.

따라서 본 고안은 상기한 종래기술의 문제점을 해소하고자 안출된 것으로, 형체램의 둘레부에 또하나의 램을 두어 이중 형체램 구조를 갖게 하므로서 사출기의 전체 길이 및 형체램의 크기 축소가 가능하게 함과 동시 효과적으로 형체 개, 폐시의 속도를 신속하게 이루어 질수 있도록 한 사출성형기의 이중형체 장치를 제공하는데 그 목적이 있다.Therefore, the present invention was devised to solve the above-mentioned problems of the prior art, and it is possible to reduce the overall length of the injection molding machine and the size of the clamping ram by providing another ram around the clamping ram to have a double clamping ram structure. In addition, the object of the present invention is to provide a dual-form apparatus of an injection molding machine that can effectively achieve the speed of opening and closing the mold.

상기한 목적을 달성하기 위한 본고안의 구체적인 수단을 이하에서 첨부도면에 의거하여 상세히 설명하면 다음과 같다.Specific means of the present invention for achieving the above object will be described in detail below based on the accompanying drawings.

첨부도면 제2도에 도시된 바와같이 본 고안은 1차 및 2차 형체램(21,22)의 램실린더 (200)에 삽입되어 유압을 가하는 부스타램(40)과, 1차 2차 형체램(21,22)의 전진시 형체실린더(10)에 공간을 채우도록 기름탱크와 연결된 포오트(100)와, 이를 통한 형체실린더(10)에 흡입된 기름을 차단시켜 금형(202)을 견고하게 체부하도록 형체실린더(10)를 차단시키는 프리필밸브(30)와, 아울러 이들을 포함하는 형체실린더(10)와 금형(202)을 고정하여 개폐시키는 가동판(201)과, 고정판(203) 및 다이바(204)로 구성된 브스타식 형체 개폐장치에 있어서, 상기 부스타램(40)이 삽입되어 고압유를 받도록 램실린더(200)가 형성되고, 이의 선단부에 금형(202)을 부착한 가동판(201)이 결합된 1차 형체램(21)에 외접면되도록 2차 형체램(22)이 구성되고, 이 2차 형체(22)의 선단부에는 후진시 고유압을 넣어 1차 형체램(21)을 후진시키도록 후진 1차 유압라인(221)이 형성되고, 1차 및 2차 형체램(21,22)을 동시에 후진시키도록 형체실린더(10)에 2차 유압라인(101)을 형성하여서 구성된 것이다.As shown in FIG. 2, the present invention includes a booth ram 40 inserted into the ram cylinder 200 of the primary and secondary mold rams 21 and 22 to apply hydraulic pressure, and a primary secondary mold ram. The pot (100) connected to the oil tank and the oil sucked into the mold cylinder (10) through the oil tank to fill the space in the mold cylinder (10) during the advance of the (21, 22) to firmly mold the mold (202) A prefill valve 30 for blocking the mold cylinder 10 so as to fill the body, a movable plate 201 for fixing and opening the mold cylinder 10 and the mold 202 including them, a fixed plate 203 and a die bar. In the B-star type body opening and closing device consisting of 204, the ram cylinder 200 is formed so that the busta ram 40 is inserted to receive the high pressure oil, and the movable plate 201 having the mold 202 attached to the front end thereof. The secondary clamping ram 22 is configured so that the outer clamping surface is coupled to the primary clamping ram 21 to which the coupling is coupled. A reverse primary hydraulic line 221 is formed to retract the primary clamping ram 21, and the secondary hydraulic pressure is applied to the mold cylinder 10 to simultaneously reverse the primary and secondary clamping rams 21 and 22. It is formed by forming the line 101.

상기와 같이 구성된 본 고안의 동작관계를 살펴보면 다음과 같다.Looking at the operation relationship of the present invention configured as described above are as follows.

먼저 도면에 도시 생략된 주 제어장치에 의해 유압을 발생시켜 부스타램(40)을 통하여 1차 형체램(21)내의 소직경의 램실린더(200)에 고유압이 가해지면 이것에 의해 1차 형체램(21)이 먼저 전진되고, 그 다음으로 이 1차 형체램(21)의 외주연에 위치한 2차 형체램(22)이 견인되어 전진하게 된다. (제2도 (b) 참조) 여기서 1차 형체램(21)과 2차 형체램(22) 전진시 반드시 상기와 같이 단계적으로만 전진 이동하는 것은 아니며, 이는 유압 라인의 조정으로 동시에 전진시킬수도 있다.First, when the high pressure is applied to the small diameter ram cylinder 200 in the primary mold ram 21 through the bus ram 40, the hydraulic pressure is generated by the main control device, which is not shown in the drawing. The ram 21 is advanced first, and then the secondary mold ram 22 located at the outer periphery of the primary mold ram 21 is towed and advanced. (Refer to FIG. 2 (b)) Here, when the primary clamping ram 21 and the secondary clamping ram 22 move forward, they do not necessarily move forward step by step as described above. have.

이때 전진된 1차, 2차 형체램(21,22)에 선단부에는 금형(202)이 부착된 가동반(201)이 결합되어 고정반(203)에 부착된 금형(202)으로 타이바(204)를 통하여 결합 체부된다.At this time, the movable bar 201 having the mold 202 attached thereto is coupled to the advanced primary and secondary mold rams 21 and 22 so that the tie bar 204 is connected to the mold 202 attached to the fixed plate 203. Through the coupling sieve.

이에 따라 금형(202)이 체부되면 도면에 도시 생략된 노즐에서 용융된 수지나 금속이 순간적인 고압으로 사출되는데, 이때에 금형(202)에 압력이 가해지므로서 형체장치에서도 이러한 순간적인 고압을 절충시키도록 하기 위해 1차 및 2차 형체램(21,22)이 전진하여 형체실린더(10)내에 생긴 공간부의 진공에 의해 기름탱크의 기름을 포오트(100)를 통하여 흡인시켜 형체실린더(10)를 채우고, 도면에 도시 생략된 주 제어회로에 의해 프리필밸브(30)에 고유압이 보내져 이것에 의하여 프리필밸브(30)가 전진하여 포오트(100)를 닫고 형체실린더(10)를 차단하므로 형체실린더(10)는 고압으로 되어 전압력을 가지고 금형(202)을 견고하게 체부하게 된다.Accordingly, when the mold 202 is sieved, molten resin or metal is injected at a high pressure at a nozzle not shown in the drawing. At this time, pressure is applied to the mold 202 to compensate for the instantaneous high pressure in the mold clamping device. The primary and secondary mold rams 21 and 22 are advanced to suck the oil of the oil tank through the port 100 by the vacuum of the space generated in the mold cylinder 10 so as to allow the mold cylinder 10 to be made. The high pressure is sent to the prefill valve 30 by the main control circuit, which is not shown in the drawing, and thus the prefill valve 30 is advanced to close the pot 100 and block the mold cylinder 10. The cylinder 10 becomes a high pressure to firmly hold the mold 202 with voltage.

또한 금형(202)을 개방하기 위한 후퇴시에는 제2도의 (a)에서와 같이 프리필밸브(30)를 후퇴시켜 포오트(100)와 부스타램(40)의 유압을 개방하여 무압상태를 이루도록 한후 1차 2차 후진 유압라인(101,202)에 고압유를 송출하여 1차, 2차 형체램(21,22)을 동시에 또는 상기의 역순으로 원래의 위치로 복원시키게 된다.In addition, when retracting to open the mold 202, the prefill valve 30 is retracted to open the hydraulic pressure of the pot 100 and the boot ram 40 as shown in FIG. High pressure oil is sent to the primary secondary reverse hydraulic lines 101 and 202 to restore the primary and secondary clamping rams 21 and 22 to their original positions simultaneously or in reverse order.

이때 1차, 2차 형체램(21,22)은 1차 2차 후진 유압라인(101,202)를 통해 동시에 고압유를 송출하게 됨에 따라 후퇴속도 또한 고속으로 이루어지게 되는 것이다.At this time, the primary and secondary mold clamps (21, 22) is to send the high pressure oil at the same time through the primary secondary reverse hydraulic line (101, 202) is also made to the retreat speed is also high speed.

이상에서 설명한 바와같이 본고안은 하나로 형성된 형체램을 1차, 2차 형체램의 이중구조를 이루도록 하여 동시 또는 개별로 움직일수 있도록 하고, 형체램의 접힘작용에 의해 형체장치의 크기를 축소시킬수 있고 형개폐속도를 빠르게 하여 싸이클 타임을 단축시킬수가 있는 매우 유용한 고안인 것이다.As described above, the subject matter of the present invention is to form a double structure of primary and secondary clamping rams so that they can be moved simultaneously or separately, and the size of the clamping device can be reduced by the folding action of the clamping rams. It is a very useful design that can shorten the cycle time by increasing the mold opening and closing speed.

Claims (1)

1차 2차 형체램(21,22)의 램실린더(200)에 삽입되어 유압을 가하여 부스타램(40)과, 1차 2차 형체램(21,22)의 전진시 형체실린더(10)에 공간을 채우도록 기름탱크와 연결된 포오트(100)와, 이를 통한 형체실린더(10)에 흡입된 기름을 차단시켜 금형(202)을 견고하게 체부하도록 형체실린더(10)를 차단시키는 프리필밸브(30)와, 아울러 이들을 포함하는 형체실린더(10)와 금형(202)을 고정하여 개폐시키는 가동판(201), 고정판(203) 및 다이바(204)로 구성된 부스타식 형체 개폐장치에 있어서, 부스타램(40)이 삽입되어 고압유를 받도록 램실린더(200)가 형성되고 선단부에 금형(202)을 부착한 가동판(201)이 결합된 1차 형체램(21)의 둘레로 형체실린더(10)와 내접함과 동시에 1차 형체램(21)에 외접면되도록 2차 형체램(22)이 구성되고, 이 2차 형체(22)의 선단부에는 후진시 고유압을 넣어 1차 형체램(21)을 후진시키도록한 후진 1차 유압라인(221)이 형성되어 있고, 1차 및 2차 형체램(21,22)을 동시에 후진시키도록 형체실린더(10)에 2차 유압라인(101)가 형성됨을 특징으로한 사출성형기의 이중 형체 장치.It is inserted into the ram cylinder 200 of the primary secondary mold clamps 21 and 22 and applied hydraulic pressure to the mold cylinder 10 when the booster ram 40 and the primary secondary mold clamps 21 and 22 advance. A prefill valve 30 which blocks the mold cylinder 10 so as to securely hold the mold 202 by blocking the oil sucked into the mold cylinder 10 and the pot 100 connected to the oil tank to fill the space. In addition, a booth-shaped mold opening and closing device composed of a movable plate 201, a fixed plate 203, and a die bar 204 for fixing and opening the mold cylinder 10 and the mold 202 including the same, The mold cylinder 10 is formed around the primary mold ram 21 to which the ram cylinder 200 is inserted to receive the high pressure oil, and the movable plate 201 having the mold 202 attached to the tip is coupled thereto. Secondary clamping ram 22 is configured so as to be inscribed with the inner mold and the outer clamping surface of the primary clamping ram 21, and a high pressure is applied to the distal end of the secondary clamping 22 when reversing. A reverse primary hydraulic line 221 is formed to reverse the primary mold ram 21, and the secondary cylinder to the mold cylinder 10 is configured to reverse the primary and secondary mold rams 21 and 22 simultaneously. Dual clamping device of the injection molding machine, characterized in that the hydraulic line (101) is formed.
KR2019930022023U 1993-10-25 1993-10-25 Double clamping apparatus for injection moulding machining KR970001247Y1 (en)

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KR970001247Y1 true KR970001247Y1 (en) 1997-02-22

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