KR920002889Y1 - Press mounted sub-cylinders - Google Patents
Press mounted sub-cylinders Download PDFInfo
- Publication number
- KR920002889Y1 KR920002889Y1 KR2019890017731U KR890017731U KR920002889Y1 KR 920002889 Y1 KR920002889 Y1 KR 920002889Y1 KR 2019890017731 U KR2019890017731 U KR 2019890017731U KR 890017731 U KR890017731 U KR 890017731U KR 920002889 Y1 KR920002889 Y1 KR 920002889Y1
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- KR
- South Korea
- Prior art keywords
- cylinder
- main cylinder
- auxiliary
- lifting plate
- cylinders
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
- B30B1/34—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure involving a plurality of plungers acting on the platen
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 정면도.1 is a front view of the present invention.
제2도는 본 고안의 연결구성도.2 is a connection diagram of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 주실린더 2 : 보조실린더1: main cylinder 2: auxiliary cylinder
4 : 승강판 5 : 기름탱크4: lifting plate 5: oil tank
본 고안은 주실린더 옆에 소형의 보조실린더를 설치하여 승강판의 승하강은 보조실린더에 의하고, 주실린더는 성형틀에 가압 작동만 하도록한 프레스기(PRESS 機)에 관한 것이다.The present invention relates to a press machine in which a small auxiliary cylinder is installed next to the main cylinder, and the lifting and lowering of the elevating plate is performed by the auxiliary cylinder, and the main cylinder is pressurized to the molding die.
종래의 프레스기는 승강판이 성형틀을 가압하기 위하여 상승할 때와 가압을 완료한 후 원래자리로 돌아오기 위하여 하강할 때에도 가압작동을 위하여 굵게 형성된 주실린더에 의하므로 상승과 하강이 신속하지 못하여 시간이 많이 걸리고, 따라서 생산성이 낮으며 에너지 소모가 많고 또한 합성수지로 성형할 경우에는 피 성형물의 표면이 냉각되기전에 신속하게 상승하여 가압하여야 그 만큼 압축이 고르게 되어 균질의 양호한 제품을 생산 할 수 있음에도 상승속도가 늦은 만큼 고른 압축이 되지 못하는 등의 단점이 있는 것이었다.Conventional presses are made by the main cylinder thickly formed for pressurization even when the lifting plate ascends to press the molding die and when it descends to return to its original position after completion of pressurization, so that the rise and fall is not rapid. It takes a lot, therefore, productivity is low, energy consumption is high, and in case of molding with synthetic resin, it is necessary to raise and press quickly before the surface of the molded object is cooled, so that the compression is even, so that even good product can be produced. There are disadvantages such as not being able to compress evenly as late.
본 고안은 이러한 단점을 시정하기 위하여 안출한 것으로서 이를 첨부도면에 따라 상세히 설명하면 다음과 같다.The present invention has been devised to correct these drawbacks and described in detail according to the accompanying drawings as follows.
프레스기에 있어서, 주실린더(1)의 양측에 주실린더(1)보다 가늘게 형성된 보조실린더(2)를 제1도와 같이 설치하고, 보조실린더(2)의 피스톤(3) 상단에 승강판(4)을 용접하고, 기름탱크(5)를 주실린더(1)보다 높게 설치하여 주실린더(1) 및 보조실린더(2)와 연결하되 주실린더(1)에는 고압펌프(1')에 의하여 기름이 유입되게 하고, 보조실린더(2)에는 저압펌프(2')에 의하여 기름이 유입되도록 하였으며 주실린더(1)와 보조실린더(2)는 제2도에서와 같이 책크밸브(6), (6'), (6")와 솔레노이드밸브(7), (7')에 의하여 개폐되도록한 것이다.In the press machine, auxiliary cylinders 2 formed thinner than the main cylinders 1 are provided on both sides of the main cylinder 1 as shown in FIG. 1, and the lifting plate 4 is placed on the upper end of the piston 3 of the auxiliary cylinder 2. And install the oil tank (5) higher than the main cylinder (1) and connect the main cylinder (1) and the auxiliary cylinder (2), but oil is introduced into the main cylinder (1) by the high pressure pump (1 '). The oil is introduced into the auxiliary cylinder (2) by the low pressure pump (2 '), and the main cylinder (1) and the auxiliary cylinder (2) are as shown in FIG. , 6 "and solenoid valves 7 and 7 'open and close.
미설명 부호 (8)은 주실린더용 피스톤 (9)는 유압용 호스 (10)은 고정판 (11)은 고정판이 부착된 상부형틀 (12)는 승강판에 부착된 하부형틀 (13)은 릴리프 밸브 (14)는 언로딩 밸브 (15)는 프리필 밸브 (16)는 카운트 밸런스 밸브 (17), (18)은 압력 스위치이다.Reference numeral 8 denotes a piston for the main cylinder 9, a hydraulic hose 10, a fixed plate 11, an upper mold 12 with a fixing plate, and a lower mold 13 with a lifting plate 13, a relief valve. Reference numeral 14 denotes an unloading valve 15, a prefill valve 16, a count balance valve 17, and 18 a pressure switch.
이와같이 구성된 본 고안은 승강판(4)이 상승할때는 저압펌프(2')가 작동하고, 솔레노이드밸브(7), (7')에 의하여 개방된 보조실린더(2)의 하부에 기름이 유입되므로 보조실린더(2)의 피스톤(3)이 상승하여 승강판(4)을 상승케하며 이때 주실린더(1)에는 기름탱크(5)의 위치가 주실린더(1)보다 높게 위치하고, 있기 때문에 피스톤(8)이 상승하는 만큼 기름탱크(5)의 기름이 주실린더(1)로 자연 유입된다.The present invention configured as described above has a low pressure pump (2 ') is operated when the lifting plate (4) is raised, the oil is introduced into the lower portion of the auxiliary cylinder (2) opened by the solenoid valve (7), (7') auxiliary The piston (3) of the cylinder (2) is raised to raise the lifting plate (4). At this time, the position of the oil tank (5) in the main cylinder (1) is located higher than the main cylinder (1), so the piston (8) As oil rises, the oil in the oil tank (5) flows naturally into the main cylinder (1).
승강판(4)이 상승하여 승강판(4)에 부착된 하부형틀(12)이 고정판(10)에 부착된 상부형틀(11)에 접하면 압력스위치(17)에 의하여 저압펌프(2')의 작동이 정지되고, 주실린더(1)용 고압펌프(1')가 작동하고, 솔레노이드밸브(7)에 의하여 주실린더(1)에 기름을 강제 유입하므로서 주실린더(1)에 의한 가압성형이 통상의 방법과 같이 이루어진다.When the lifting plate 4 is raised and the lower die 12 attached to the lifting plate 4 is in contact with the upper die 11 attached to the fixed plate 10, the low pressure pump 2 ′ is provided by the pressure switch 17. Of the main cylinder (1) is stopped, and the high pressure pump (1 ') for the main cylinder (1) is operated, and pressurization by the main cylinder (1) is performed by forcing oil into the main cylinder (1) by the solenoid valve (7). It is done as usual.
주실린더(1)의 피스톤(8)에 의한 가압이 일정압력까지 상승하면 압력 스위치(18)에 의하여 고압펌프(1')의 작동이 정지되고, 일정압력이 유지되면서 상하부형틀(11), (12)에 의한 성형 및 냉각작용으로 성형이 진행되는 것은 통상의 방법과 같고, 성형이 완료되면 다시 저압펌프(2')가 작동하고, 솔레노이드밸브(7')에 의하여 보조실린더(2)의 상부에 기름을 유입하므로 피스톤(3)이 하강하여 승강판(4)을 하강케하고, 성형된 제품을 탈형한다.When the pressure by the piston 8 of the main cylinder 1 rises to a certain pressure, the operation of the high pressure pump 1 'is stopped by the pressure switch 18, and the upper and lower molds 11, ( Forming and cooling by 12) is performed in the same manner as usual, and when the molding is completed, the low pressure pump 2 'is again operated, and the upper portion of the auxiliary cylinder 2 is provided by the solenoid valve 7'. Since oil is introduced into the piston 3, the piston 3 descends to lower the lifting plate 4, and the molded product is demolded.
이와같이 보조실린더(2)가 승강판(4)을 승하강시키고, 주실린더(1)는 가압작용만 하도록한 본 고안의 구체적효과는 실험결과 아래의 "표"와 같다.In this way, the auxiliary cylinder (2) to raise and lower the lifting plate (4), the specific effect of the present invention to the main cylinder (1) is only a pressing action is shown in the "Table" below the experimental results.
[표][table]
이상과 같이 본 고안은 승강판의 승하강시간을 단축하므로서 같은 시간내에 보다 많은 량의 제품을 생산할 수 있어 생산성이 높을 뿐 아니라 승강시간이 단축됨에 따라 그 만큼 승강에 소요되는 에너지도 절감되고 또한 반죽 상태로 가열용해된 피성형물을 가압성형하는 경우에는 피성형물의 표면이 냉각경화 되기전에 보다 신속히 상승하여 가압하므로 그 만큼 압축이 고르게 되어 균질의 양호한 제품을 생산할 수 있는 등의 효과가 있는 것이다.As described above, the present invention can produce a larger amount of products within the same time by shortening the lifting time of the lifting plate, so that the productivity is not only high and the lifting time is shortened, so that the energy required for the lifting is reduced, and the dough In the case of press-molding the molded object heated in the state, the surface of the molded object rises and presses more rapidly before being cooled and hardened, so that the compression is even, so that a homogeneous good product can be produced.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890017731U KR920002889Y1 (en) | 1989-11-27 | 1989-11-27 | Press mounted sub-cylinders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890017731U KR920002889Y1 (en) | 1989-11-27 | 1989-11-27 | Press mounted sub-cylinders |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR910008866U KR910008866U (en) | 1991-06-27 |
| KR920002889Y1 true KR920002889Y1 (en) | 1992-05-08 |
Family
ID=19292452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019890017731U KR920002889Y1 (en) | 1989-11-27 | 1989-11-27 | Press mounted sub-cylinders |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR920002889Y1 (en) |
-
1989
- 1989-11-27 KR KR2019890017731U patent/KR920002889Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR910008866U (en) | 1991-06-27 |
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