KR920005636Y1 - Apparatus for producing bricks - Google Patents
Apparatus for producing bricks Download PDFInfo
- Publication number
- KR920005636Y1 KR920005636Y1 KR2019900006020U KR900006020U KR920005636Y1 KR 920005636 Y1 KR920005636 Y1 KR 920005636Y1 KR 2019900006020 U KR2019900006020 U KR 2019900006020U KR 900006020 U KR900006020 U KR 900006020U KR 920005636 Y1 KR920005636 Y1 KR 920005636Y1
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- South Korea
- Prior art keywords
- section
- mixer
- extrusion
- unit
- molding
- Prior art date
Links
- 239000011449 brick Substances 0.000 title claims description 25
- 238000001125 extrusion Methods 0.000 claims description 22
- 238000000465 moulding Methods 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000004927 clay Substances 0.000 description 17
- 238000001816 cooling Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000013024 troubleshooting Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
- B28B3/201—Means for heating or cooling the barrel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
- B28B3/22—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded by screw or worm
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 개략도.1 is a schematic diagram of the present invention.
제2도는 본 고안에서 분말상태의 점토를 믹서하여 공급하는 구성을 보인 단면 구성도.Figure 2 is a cross-sectional view showing a configuration of supplying a mixture of powdered clay in the present invention.
제3도는 본 고안에서 믹서된 점토를 벽돌성형물로 성형하는 구성을 보인 단면 구성도.Figure 3 is a cross-sectional view showing the configuration of molding the clay blended in the present invention into a brick molding.
제4도는 본 고안의 요부를 보인 일부 사시도.4 is a partial perspective view showing the main portion of the present invention.
제5도는 제4도에서 진공부의 구성을 보인 단면구성도.5 is a cross-sectional view showing the configuration of the vacuum unit in FIG.
제6도는 제4도에서 압출부의 구성을 보인 단면구성도.6 is a cross-sectional view showing the configuration of the extrusion portion in FIG.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 공급부 2 : 유입부1: supply part 2: inflow part
3 : 교반부 4 : 유출부3: stirring part 4: outlet part
5 : 믹서부 6 : 진공부5: mixer section 6: vacuum section
7 : 압출부 8 : 성형부7: extrusion part 8: molding part
12,12a : 동력부 13,13a : 스크류12,12a: power unit 13,13a: screw
14,16,16a : 플랜지 15 : 보울트14,16,16a: Flange 15: Bolt
18,27 : 테이퍼면 19 : 연결관체18,27 tapered surface 19 connector
20 : 개폐부재 23 : 수조20: opening and closing member 23: water tank
본 고안은 분말상태의 점토를 물과 믹서하여 벽돌형태의 성형물로 압출성형하는 벽돌성형물의 제조장치에있어서, 제조공정에 따른 각부품들을 분해 및 조립이 가능하도록 하는 결합구성요소를 갖추어서 제작성을 향상시키고, 고장수리 및 부품교체를 용이하게 할뿐만 아니라 제조되는 벽돌의 질을 향상시키도록하는 벽돌성형물의 제조장치에 관한 것이다.The present invention is a device for manufacturing a brick molding by extruding into a molding in the form of a brick by mixing powdered clay with water, and having a joining component for disassembling and assembling each part according to the manufacturing process. The present invention relates to an apparatus for manufacturing brick moldings, which improves the quality of the bricks, as well as facilitates troubleshooting and component replacement.
일반적으로 벽돌은 분말상태의 점토를 일정비율의 물과 믹서하고 이속에 내포된 공기를 흡출한 다음 벽돌형태로 압출성형하여 고온으로 소성하므로서 벽돌을 제조하는 것이다.In general, bricks are manufactured by mixing clay in a powdered state with a certain ratio of water, drawing out air contained therein, and extruding them in the form of bricks to be fired at a high temperature.
이같은 벽돌제조과정에 있어 본 고안은 벽돌을 소성하기전의 상태, 즉 벽돌성형물로 제조라는 제조장치에 관한 것이며 종래의 벽돌성형물 제조장치를 살펴보면, 진공부를 갖는 본체의 일측면에 1차 동력부에 의해 작동되는 믹서부가 단일체로 부설되고, 타측면에는 압출부와 성형부가 단일체로 구비되어 2차 동력부에 의해 작동되도록된 구성이었다.In the brick manufacturing process, the present invention relates to a manufacturing apparatus called a state before firing bricks, that is, manufacturing brick moldings. Referring to the conventional brick molding manufacturing apparatus, the primary power unit may be disposed on one side of a main body having a vacuum unit. The mixer is operated in one unit, and the other side is provided with an extrusion unit and a molding unit as a unit to operate by the secondary power unit.
이는, 분말상태의 점토를 별도의 콘베이어시스템에 의해 믹서부로 공급되게하고, 믹서부에서는 1차 동력부에 의해 회전구동되는 스크류가 일정비율의 물과 믹서되게함과 동시에 본체내의 진공부로 공급되게 한다.This allows the powdered clay to be supplied to the mixer section by a separate conveyor system, and in the mixer section, the screw driven by the primary power unit is mixed with a certain ratio of water and simultaneously supplied to the vacuum section in the main body. do.
진공부에서는 소정위치에 연결된 진공펌프로 점토속에 내포된 공기를 흡출하여 필요한 응접력을 갖도록하고, 이를 2차 동력부에 의해 구동되는 스크류가 압출부로 공급하여 고압으로 압출함과 동시에 성형부를 통해 외부로 배출시키므로서 벽돌성형물을 제조하는 것이었다.In the vacuum part, the vacuum pump connected to the predetermined position sucks out the air contained in the clay so as to have a necessary contact force, and the screw driven by the secondary power unit is supplied to the extrusion part to extrude at a high pressure and at the same time through the molding part. It was to produce a brick molding by discharging as.
그러나, 이같은 종래의 구성은 각부품들을 제조공정에 따라 연결만을 하기 위한 결합구성요소를 갖고 있기 때문에, 즉 진공부를 갖춘 본체와 믹서부가 단일체로 구성되고 또한 압출부와 성형부도 단일체로 구성되므로 분해과정시 극히 제한적으로 분해가 가능할뿐 아니라 각부품의 단위가 커 분해가 어렵고 복잡한 것이며 필요에 따라서는 용접부분을 절단하여야만 분해가 가능한 것이었다.However, such a conventional configuration is decomposed because each component has a coupling component for connecting only parts according to the manufacturing process, that is, the main body having a vacuum part and the mixer part are composed of a single piece, and the extrusion part and the molding part are formed of a single piece. In addition to the extremely limited disassembly during the process, the large unit of each part makes it difficult and complex to disassemble and, if necessary, it can be disassembled only by cutting the welded part.
따라서 어느한부분의 부품이 마모 또는 파손되어 고장수리 및 교체하여야 할경우 고장수리가 용이치 못하거나 불가능하고, 부품을 교체시에는 전체를 교체하여야 하는등의 문제점이 있었다.Therefore, if any part of the parts are worn or broken, it is difficult or impossible to repair and replace the parts, and when the parts are replaced, there is a problem of replacing the whole part.
또한, 점토속의 공기를 흡출해내는 진공부가 본체내에 단일체로 구성되어 있기 때문에 진공부의 내부공간이 그만큼 넓어져 진공도가 떨어지는 문제점이 있는 것이며, 이는 벽돌제조과정에서 대단히 중요한것으로 벽돌성형물에 내포된 기포가 허용되는 일정비율이상으로 남아있게 되면 벽돌을 소성시 불량품이 많이 발생되는 요인이 되었다.In addition, since the vacuum part that draws out the air in the clay is composed of a single body in the main body, the internal space of the vacuum part is widened so that the degree of vacuum falls, which is very important in the brick manufacturing process. Remaining above a certain allowable ratio was a factor causing a lot of defective products when firing bricks.
또한, 압출부에 압출성형시 높은 압력에 의해 압출부가 가열되지만 종래에는 단순히 외기의 온도에 의해 공랭식으로 압출부를 냉각시키는 구성이었다. 따라서 이는 냉각상태가 균일하지 못하고 계절등의 외기온도차에 따라 압출부의 내표면이 지나치게 가열되므로서 강도가 약한 부위가 쉽게 마모 또는 파열될뿐만 아니라 벽돌성형물이 고온이되어 외부로 배출되는순간 온도차이에 의해 균열 및 변형이 되는등의 문제점도 있는 것이었다.In addition, although the extrusion part is heated by the high pressure at the time of extrusion molding in the extrusion part, it was conventionally configured to simply cool the extrusion part by air cooling by the temperature of the outside air. Therefore, this is because the cooling surface is not uniform and the inner surface of the extruded part is heated too much according to the outdoor temperature difference such as the season, so that the weak strength part is easily worn or ruptured and the brick molding becomes high temperature and is discharged to the outside. There was also a problem such as cracking and deformation.
본 고안은 상기와같은 문제점을 고려하여 이루어진 것으로 그목적은 제조공정에 따라 각부품을 분해 및 조립이 가능하도록 하는 결합구성요소로 갖추므로서 제작성을 향상시킴과 동시에 고장수리 및 부품교체를 용이하게하는 관리성을 향상시키는 벽돌성형물의 제조장치를 제공함에 있다.The present invention has been made in consideration of the above problems, and its purpose is to provide a coupling component that allows disassembly and assembly of each part according to the manufacturing process, thereby improving manufacturability and facilitating troubleshooting and replacement of parts. It is to provide an apparatus for manufacturing a brick molding to improve the manageability.
또다른 목적은 진공부를 별도의 부품으로 구성하여 진공도를 향상시키므로서 제조되는 벽돌의 질을 높임과동시에 불량품을 줄이도록 하는 것이며. 또한 압출부에 수냉식 냉각장치를 부설하여 벽돌성형물이 압출성형시 발생되는 열을 균일하게 냉각하므로서 부품의 마모 및 파손을 방지하고 외부로 배출되는 벽돌성형물의 변형을 방지토록한 것이다Another object is to increase the quality of the bricks manufactured by improving the degree of vacuum by configuring the vacuum part as a separate part and to reduce defective products at the same time. In addition, by installing a water-cooled cooling device in the extrusion unit to uniformly cool the heat generated during the extrusion molding to prevent wear and damage of the parts and to prevent deformation of the brick molding discharged to the outside.
다음 본 고안의 실시예를 첨부된 도면에 의하여 구체적으로 설명하면 다음과 같다.Next, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
본 고안은 공급부(1)와, 그리고 유입부(2), 교반부(3), 유출부(4)로 구비되는 믹서부(5)와, 상기 믹서부(5)와 체결되는 진공부(6)와, 압출부(7)그리고 성형부(8)로 구성된다.The present invention is a mixer (5) provided with a supply unit (1) and an inlet (2), agitator (3), outlet (4), and a vacuum unit (6) fastened with the mixer (5) ), An extrusion part 7 and a molding part 8.
이들은 모우터(9)(9a)의 동력을 전달하는 전달부재(10)와 감속부재(11)(1la)를 각각 구비한 1,2차 동력부(12)(12a)에 의해 각각 작동되는 것이다. 1차 동력부(12)에 의해 작동되는 공급부(1)는 상단이 개구되어 별도의 미도시된 콘베이어시스템으로부터 분말상태의 점토와 물을 공급받도록 하고, 내부에는 감속부재(11)의 동력축과 연결되는 스크류(13)가 구비되며, 전단에는 플랜지(14)가 구비되어 믹서부(5)의 유입부(2)에 보울트로 체결된다.These are operated by primary and secondary power units 12 and 12a each having a transmission member 10 and a reduction member 11 and 1la for transmitting power of the motors 9 and 9a, respectively. . The supply unit 1, which is operated by the primary power unit 12, is open at its upper end to receive powder clay and water from a separate conveyor system, not shown, and has a power shaft inside the speed reduction member 11. A screw 13 to be connected is provided, and a flange 14 is provided at the front end and fastened to the inlet 2 of the mixer 5 by a bolt.
상기 믹서부(5)는 유입부(2)와 교반부(3), 그리고 유출부(4)로 구성되고, 이들은 서로 면접촉되어 다수의 보울트(15)로 체결된다.The mixer part 5 is composed of an inlet part 2, an agitator part 3, and an outlet part 4, which are in surface contact with each other and fastened to a plurality of bolts 15.
일예를 들어 설명하면 유입부(2)의 외연에 구비된 플랜지(16)와 교반부(3)의 외연에 구비된 프랠지(16a)를 서로 면접촉시켜 보울트공을 통해 보울트(15)로 체결하는 것이며 교반부(3)와 유출부(4)의 체결구성도 상기와 동일하다.For example, the flange 16 provided on the outer edge of the inlet portion 2 and the frudge 16a provided on the outer edge of the stirring portion 3 are brought into surface contact with each other and fastened to the bolt 15 through the bolt hole. The fastening structure of the stirring part 3 and the outflow part 4 is also the same as the above.
이때 교반부(3)내에는 교반팬(17)이 부설되고 이는 2차 동력부(12a)의 감속부재(1la)축에 연결되어 회전구동되는 것이다.At this time, the stirring fan 17 is installed in the stirring unit 3, which is connected to the reduction member 1la shaft of the secondary power unit 12a to be driven in rotation.
또한, 믹서부(5)의 유출부(4)와 체결되는 진공부(6)의 사이에는 테이펴면(18)을 갖는 연결관체(19)가 구비되어 이들을 보울트(15)로 연결체결하는 것이고, 상기 진공부(6)의 상단은 보울트(15)로 체결되는 개폐부재(20)가 부설되며 일측면 소정위치에는 진공펌프(21)와 연결되는 공기 흡출관(22)이 구비된다.In addition, between the outlet part 4 of the mixer part 5 and the vacuum part 6 to be fastened, a connecting body 19 having a tapered surface 18 is provided to connect and fasten them with the bolt 15. The upper end of the vacuum unit 6 is provided with an opening and closing member 20 is fastened to the bolt 15 is provided with an air suction tube 22 connected to the vacuum pump 21 at one side of the predetermined position.
그리고, 진공부(6)의 전단에 다수의 보울트(15)로 체결되는 압출부(7)는 외주연으로 수조(23)가 구비되고 이의 수조(23)에는 펌프(24)에 의해 냉각수가 흡입 및 배출되는 흡입관(25)과 배출관(26)이 각각 구비되며 상기 압출부(7)의 전단에는 성형부(8)가 보울트(15)로 체결된다.In addition, the extruded part 7 fastened to the front end of the vacuum part 6 by a plurality of bolts 15 is provided with a water tank 23 on the outer circumference thereof, and the cooling water is sucked into the water tank 23 by the pump 24. And a suction pipe 25 and a discharge pipe 26 discharged from each other, and a molding part 8 is fastened to the bolt 15 at the front end of the extrusion part 7.
또한 상술한 믹서부(5)의 배출부(4)와 진공부(6) 그리고 압출부(7)의 내측에는 2차 동력부(12a)의 동력에 의해 구동되는 스크류(13a)가 구비되고 배출부(4)와 진공부(6) 사이, 즉 연결관체(19)내에는 연결관체(19)의 테이퍼면(18)과, 대향되게 테이퍼면(27)을 갖춘 안내부재(28)가 구비되어 스크류축을 지지함과본동시에 공급되는 점토를 압출안내되도록된 것이다.In addition, a screw 13a driven by the power of the secondary power unit 12a is provided inside the discharge unit 4, the vacuum unit 6, and the extrusion unit 7 of the mixer unit 5 described above and discharged. Between the portion 4 and the vacuum portion 6, that is, in the connecting pipe 19, a tapered surface 18 of the connecting pipe 19 and a guide member 28 having a tapered surface 27 opposite are provided. Supporting the screw shaft and the extrusion of the clay supplied at the same time is to be guided.
이와같은 보 고안의 작용효과를 상세히 설명하면 다음과 같다.Referring to the effect of such an innovation in detail as follows.
미도시된 콘베이어시스템에서 공급되는 분말상태의 점토가 공급부(1)에 공급되면 1차 동력부(12)에 의해 회전되는 스크류(13)가 미도시된 펌프로부터 일정비율의 물을 공급받아 이를 믹서함과 동시에 유입부(2)를 통해 교반부(3)로 공급한다.When the clay in the powder state supplied from the conveyor system not shown is supplied to the supply unit 1, the screw 13 rotated by the primary power unit 12 receives a predetermined ratio of water from the pump not shown and mixes it with the mixer. At the same time it is supplied to the stirring section (3) through the inlet (2).
교반부(3)에서는 2차 동력부(12a)의 동력에 이해 회전되는 교반팬(17)이 이를 교반하여 유출부(4)로 공급하고, 유출부(4)에서는 역시 2차 동력부(12a)에 의해 회전구동되는 스크류(13a)가 교반되는 점토를 다시 믹서함과 동시에 연결관체(19)를 통하여 전방의 진공부(6)로 공급한다.In the stirring section 3, the stirring fan 17, which is rotated by the power of the secondary power section 12a, is stirred and supplied to the outlet section 4, and in the outlet section 4, the secondary power section 12a is also provided. At the same time, the clay 13, which is rotated by the screw 13a, is stirred again, and is supplied to the front vacuum part 6 through the connecting pipe 19.
이때, 유출부(4)에서 진공부(6)로 공급되는 점토는 연결관체(19)의 테이퍼면(18)과 안내부재(28)의 테이퍼면(27)에 의해 억지로 공급되므로서 1차 압출을 하게된다.At this time, the clay supplied from the outlet part 4 to the vacuum part 6 is forcibly supplied by the taper face 18 of the connecting pipe 19 and the taper face 27 of the guide member 28, and thus the primary extrusion. Will be
이같이 전공부(6)로 공급된 점토는 진공펌프(21)의 흡출작동에 의해 내부의 공기는 물론 점토속의 공기가 모두 흡출되어 전공 상태가 되는 것이며, 계속 구동되는 스크류(13a)에 이해 기포가 제거된 점토는 극히 공간이 좁은 압출부(7)를 억지로 통과되면서 완전히 압출되어지고 압출부(7)에서 압출된 점토는 성형부(8)를 통해 외부로 배출되면서 일정한 형태를 유지하는 벽돌성형물로 제조되는 것이다.In this way, the clay supplied to the electroplating part 6 is sucked out of the air in the clay as well as the air inside by the suction operation of the vacuum pump 21, and becomes a major state. The removed clay is completely extruded while forcibly passing through the extremely narrow extruded portion 7, and the clay extruded from the extruded portion 7 is a brick molded product that maintains a constant shape while being discharged to the outside through the molded portion 8. To be manufactured.
이때 압출부(7)의 외연에 부설된 수조(23)에는 펌프(24)에 의해 펌핑되는 냉각수가 흡입관(25)을 통해 유입되어져 압출부(7)의 외표면을 냉각시킨다음 배출관(26)을 통하여 배출되므로서 고온으로 가열되는 압출부(7)를 냉각시키게 되는 것이다.At this time, the cooling water pumped by the pump 24 is introduced into the water tank 23 attached to the outer edge of the extruded portion 7 through the suction pipe 25 to cool the outer surface of the extruded portion 7 and then the discharge pipe 26. It is to be discharged through to cool the extruded portion 7 is heated to a high temperature.
그러므로 본 고안은 각부품들을 단위별로 조립 및 분해가 가능하므로서 각부품을 단위별로 제작할수가 있어 제작성이 향상되는 것이고, 고장수리 및 부품교체가 용이하게 관리성이 향상되는 효과가 있다.Therefore, the present invention is to be able to assemble and disassemble each part by unit, so that each part can be manufactured by unit, and the manufacturability is improved, and the repairability and replacement of parts can be easily improved.
또한 진공부를 별도의 부품으로 구성하여 점토속의 공기를 흡출하는 기능만을 수행토록하므로서 진공도가 월등히 향상되어 소성시 벽돌이 균열되거나 파손되는 등의 불량품을 줄일수 있는 것이다.In addition, by configuring the vacuum unit as a separate part to perform only the function of sucking the air in the clay, the degree of vacuum is significantly improved to reduce defective products such as brick cracking or damage during firing.
또한, 압출부에는 냉각수를 순환공급시키는 냉각장치를 부설하므로서 압출부가 가열되어 마모 및 파손되던것을 방지할수가 있을뿐 아니라 성형되는 벽동성형물이 변형되는 등의 문제점이 해소되는 효과가 있는 것이다.In addition, by installing a cooling device for circulating and supplying the cooling water in the extrusion part, the extrusion part can be prevented from being abraded and damaged by being heated, and also has the effect of eliminating problems such as deformation of the wall-molded product to be formed.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900006020U KR920005636Y1 (en) | 1990-05-09 | 1990-05-09 | Apparatus for producing bricks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900006020U KR920005636Y1 (en) | 1990-05-09 | 1990-05-09 | Apparatus for producing bricks |
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| Publication Number | Publication Date |
|---|---|
| KR910019870U KR910019870U (en) | 1991-12-19 |
| KR920005636Y1 true KR920005636Y1 (en) | 1992-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019900006020U KR920005636Y1 (en) | 1990-05-09 | 1990-05-09 | Apparatus for producing bricks |
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| Country | Link |
|---|---|
| KR (1) | KR920005636Y1 (en) |
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- 1990-05-09 KR KR2019900006020U patent/KR920005636Y1/en active IP Right Grant
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| KR910019870U (en) | 1991-12-19 |
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