KR20070118330A - Heating apparatus of hot press forming workpiece for preventing reducing temperature - Google Patents

Heating apparatus of hot press forming workpiece for preventing reducing temperature Download PDF

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Publication number
KR20070118330A
KR20070118330A KR1020060052324A KR20060052324A KR20070118330A KR 20070118330 A KR20070118330 A KR 20070118330A KR 1020060052324 A KR1020060052324 A KR 1020060052324A KR 20060052324 A KR20060052324 A KR 20060052324A KR 20070118330 A KR20070118330 A KR 20070118330A
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South Korea
Prior art keywords
heating furnace
door
heating
hot press
press forming
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KR1020060052324A
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Korean (ko)
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KR101271851B1 (en
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유진석
한상빈
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주식회사 포스코
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/34—Heating or cooling presses or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/16—Heating or cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/0014—Devices for monitoring temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Tunnel Furnaces (AREA)

Abstract

A workpiece heating apparatus of hot press forming for preventing temperature decrease is provided to allow workpieces to be heated uniformly and promptly in the heating furnace by vertically forming flame curtains at the entrance of a heating furnace, thereby preventing the decrease of temperature inside the heating furnace when opening the entrance to move a robot into/out of the heating furnace. A workpiece heating apparatus of hot press forming for preventing temperature decrease comprises a heating furnace(5) having a cavity and a door(7) at one side such that workpieces enter or leave the cavity; a seating member(9) which is installed in the heating furnace, and on which the workpieces are loaded by a robot(3); and flame curtain generating devices(8) installed on upper and lower parts of the door of the heating furnace to form flame curtains when opening the door of the heating furnace.

Description

온도 하락을 방지하기 위한 핫프레스포밍용 소재 가열 장치{HEATING APPARATUS OF HOT PRESS FORMING WORKPIECE FOR PREVENTING REDUCING TEMPERATURE}HEATING APPARATUS OF HOT PRESS FORMING WORKPIECE FOR PREVENTING REDUCING TEMPERATURE}

도 1은 일반 핫프레스포밍의 작업 과정을 도시한 이해도;1 is an understanding of the working process of general hot preforming;

도 2는 종래 기술에 따른 가열로의 구성을 도시한 도면;2 is a view showing the configuration of a heating furnace according to the prior art;

도 3은 본 발명에 따른 가열로의 구성을 도시한 도면; 및3 is a view showing a configuration of a heating furnace according to the present invention; And

도 4는 종래 기술 및 본 발명에 따른 가열로의 온도 변화를 나타낸 그래프.Figure 4 is a graph showing the temperature change of the heating furnace according to the prior art and the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1: 프레스 2: 금형1: press 2: mold

3: 로봇 4: 실린더3: robot 4: cylinder

5: 가열로 6: 온도측정센서5: furnace 6: temperature sensor

7: 출입문 8: 화염커튼7: Door 8: Flame Curtain

9: 소재안착대 20: 상부화염커튼9: material seating area 20: upper flame curtain

100: 종래의 가열로에 의한 데이터100: data by a conventional furnace

111: 본 발명의 가열로에 의한 데이터111: data by the furnace of the present invention

본 발명은 고온 프레스 성형(hot press forming) 제품 생산시, 소재를 가열하기 위한 가열로에 관한 것으로서, 특히 소재을 가열로 내부로 인입시키기 위한 출입문의 개폐에 따른 온도 변화를 최소화하기 위한 온도 하락 방지를 위한 핫프레스포밍용 소재 가열 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating furnace for heating a material when producing a hot press forming product, and particularly to prevent a temperature drop for minimizing a temperature change caused by opening and closing a door for introducing a material into the heating furnace. It relates to a material heating device for hot preforming.

핫프레스용 제품의 성형 방법은 다음과 같은 공정으로 이루어져 있다. 가열 전 소재를 가열로에 인입하는 과정, 소재를 가열하는 과정, 가열된 소재를 이송 장치에 의해 금형 위 이송하는 과정, 프레싱 과 함께 금형 내 냉각 과정, 인출 로봇에 의한 성형 부품 제거 공정의 연속 공정으로 구성된다.The molding method of the hot press product consists of the following steps. Continuous process of drawing the material into the furnace before heating, heating the material, transferring the heated material on the mold by the transfer device, cooling in the mold together with pressing, and removing the molded part by the extraction robot It consists of.

도 1은 일반 핫프레스포밍의 작업 과정을 도시한 이해도이고, 도 2는 종래 기술에 따른 가열로의 구성을 도시한 도면이다.1 is a view showing the working process of the general hot forming, Figure 2 is a view showing the configuration of a heating furnace according to the prior art.

일반적으로(종래에는), 상기의 공정에서 없어서는 안돼는 중요한 기능을 하는 가열로(5)는 소재를 인입하여 원하는 온도로 가열 하는데, 현재의 작업공정으로 작업할 시 가열로 전면에 위치한 출입문(7)을 오픈 하고 소재인출.입용 로봇(3)이 가열로(5) 내부로 왕래하면서 작업을 하게 되는데 가열로(5) 출입문(7)을 열고 로봇(3)이 들어갈때 외부에서 찬 공기가 가열로(5) 내부로 유입되면서 가열로(5)의 내부온도가 급격히 다운되는 문제점으로 인하여 가열로(5)내부에 인입되어 안착대(9)에 안착된 소재에 대하여 가열로(5)의 내부와 출입문(7)쪽의 온도차로 인하여 불 균일 가열이 이루어져 소재의 가열편차에 의한 제품의 경도 편차가 발생하며, 가열로(5)의 온도가 다운되어 정상온도로 승온하는 시간이 과다 소요되어 연속작업이 어려운 문제점이 있다. In general (conventionally), the furnace (5), which plays an important function indispensable in the above process, draws in the material and heats it to a desired temperature. When the robot (3) enters and goes to the inside of the heating furnace (5), the work is performed.The heating furnace (5) opens the door (7), and the cold air is heated from the outside when the robot (3) enters. (5) Due to the problem that the internal temperature of the heating furnace 5 is drastically lowered while being introduced into the inside, the material which is introduced into the heating furnace 5 and is seated on the seating plate 9 is in contact with the inside of the heating furnace 5. Uneven heating occurs due to the temperature difference between the door 7 and the hardness deviation of the product occurs due to the heating deviation of the material.The temperature of the heating furnace 5 is lowered so that it takes too much time to raise the temperature to the normal temperature. There is this difficult problem.

도2는 종래의 가열로의 구성을 보여주며, 출입문(7)쪽의 하부에 1개의 화염커튼(8)을 사용하므로 출입문(7)을 오픈하여 로봇(3)이 출입 시 화염커튼(8)이 미치지 못하는 부분인 상부의 외부에서 찬 공기가 유입되면서 가열로(5) 내부의 온도가 저하되며, 이때 온도는 가열로(5) 상부에 설치된 온도측정센서(6)에 측정이 되며, 계측된 데이터(100)이고 정상작업 온도에서 6~7도까지 다운되는 것을 알 수 있다.Figure 2 shows the configuration of a conventional heating furnace, since one flame curtain 8 is used at the lower side of the door 7 side, the door 7 is opened to open the flame curtain 8 when the robot 3 enters and exits. As the cold air flows in from the outside of the upper part, which is not reachable, the temperature inside the heating furnace 5 is lowered. At this time, the temperature is measured by the temperature measuring sensor 6 installed at the upper part of the heating furnace 5 and measured. It can be seen that the data is 100 and down to 6-7 degrees at normal working temperature.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로써, 소재를 인.출입하는 가열로 출구에 상.하로 화염커튼을 사용하여 가열로 출입문을 열고, 로봇이 인.출입하여도 온도저하가 없도록 하는 것에 의하여 가열로 내부의 가열소재가 균일하고 신속하게 가열되도록 하는 온도 하락을 방지한 핫프레스포밍제품 가열 장치를 제공함에 그 주요 목적이 있다. The present invention is to solve the above problems, to open and close the door of the furnace using flame curtain up and down at the outlet of the furnace to draw in and out the material, so that there is no temperature decrease even if the robot draws in and out. It is a main object of the present invention to provide a hot preformed heating device that prevents the temperature drop to ensure that the heating material inside the furnace is uniformly and quickly heated.

상술한 바와 같은 목적을 해결하기 위하여 안출된 것으로서, 본 발명은 핫 프레스 포밍용 소재 가열 장치에 있어서, 일정 가열 공간을 가지며, 소재의 출입을 위한 출입문이 일측에 설치되는 가열로와, 상기 가열로 내부에 설치되어 소정의 로 봇에 의해 상기 이송되는 소재를 안착시키기 위한 안착대 및 소재 인입을 위한 상기 가열로의 출입문 개방시 화염 커튼을 형성하기 위하여 상기 출입문의 상, 하부에 각각 설치되는 화염커튼 발생 장치를 포함함을 특징으로 한다.The present invention has been made in order to solve the above object, the present invention is a hot press forming material heating apparatus, the heating furnace having a constant heating space, the entrance door for the entry and exit of the material is installed on the one side, and the heating furnace Flame curtains installed in the upper and lower portions of the door to be installed therein to form a flame curtain upon opening the door to the seating table for seating the conveyed material by the predetermined robot and the heating furnace for the material entry. And a generator.

이하 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명하면 하기와 같다. 그러나 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, if it is determined that the gist of the present invention may be unnecessarily obscured, the detailed description thereof will be omitted.

도 3은 본 발명에 따른 가열로의 구성을 도시한 도면로써,핫프레스용 제품을 생산하기 위한 소재를 로봇(3)에 장착하고, 로봇(3)이 서서히 가열로(5) 전면의 출입문(7)의 적당한 위치에 다달으면 상.하에 조립된 화염발생기(8)에서 LP가스와 고압의 에어를 동시에 투입하고 점화를 하여 커튼을 형성하고, 다음 출입문(7)이 화염발생기(8)에서 만들어진 화염커튼의 상부 높이에 위치하면 출입문(7)의 하부에 조립된 상부화염커튼(20)에서 LP가스와 고압의 에어를 동시에 투입하고 점화를 하여 커튼을 형성하여 상.하 화염커튼(8.20)에 의하여 완전히 공기가 유입되는 것을 방지하도록 작용하고, 이때 출입문(7)이 완전히 오픈되어 소재가 장착된 로봇(3)이 가열로(5)의 내부로 들어가 소재를 안착대(9)에 안착하고, 로봇(3)이 소재 인입을 완료하고 나오며, 다음 출입문(7)이 닫히면서 상.하 화염커튼(8.20)을 생성하기 위하여 공급되던 가스와 에어가 차단되면서 작용하게 된다. 3 is a view showing the configuration of a heating furnace according to the present invention, the material for producing a product for hot press mounted on the robot (3), the robot (3) gradually the door (front) of the heating furnace (5) When reaching the proper position of 7), LP gas and high-pressure air are simultaneously put in the flame generator (8) assembled up and down and ignited to form a curtain, and the next door (7) is made in the flame generator (8). When located at the upper height of the flame curtain, the upper flame curtain (20) assembled in the lower portion of the door (7) to the LP gas and high-pressure air at the same time and ignited to form a curtain to the upper and lower flame curtain (8.20) It acts to prevent the air to completely enter by, the door (7) is completely open so that the robot (3) equipped with the material enters the interior of the heating furnace (5) to seat the material on the seating table (9), The robot (3) finishes entering the material and exits, and the next door (7) ) Is closed and the gas and air supplied to create the upper and lower flame curtain (8.20) are blocked.

(실시 예)(Example)

도 3은 본 발명의 가열로의 구성을 보여주며, 출입문(7)쪽의 상. 하부에 화 염커튼(8.20)을 사용하므로 출입문(7)을 오픈하여 로봇(3)이 출입 시 화염커튼(8)이 미치지 못하는 부분이 발생하지 않고 출입문(7)의 오픈에 의한 열리는 부분을 완전히 화염커튼(8.20)으로 막아 가열로(5) 내부로 공기가 유입되는 것을 차단하고, 이때 온도는 가열로(5) 상부에 설치된 온도측정센서(6)에 측정이 되며, 계측된 데이터1(111)이고 정상작업 온도에서1~2도 정도만 다운되는 것을 알 수 있다.Figure 3 shows the configuration of the heating furnace of the present invention, the image of the door 7 side. Since the flame curtain (8.20) is used at the bottom, the door (7) is opened so that the part that the flame curtain (8) does not reach when the robot (3) enters and exits is completely opened. Block the flame curtain (8.20) to block the inflow of air into the heating furnace (5), the temperature is measured by the temperature measuring sensor (6) installed on the heating furnace (5), the measured data 1 (111) ) And only 1 ~ 2 degrees down from normal working temperature.

도 4는 화염커튼(8.20)의 작용 정도에 따른 온도 데이터를 나타내며, 데이터(100)은 출입문(7)의 하부에서 화염커튼(8)을 사용할 시 가열로(5)의 내부에 설치된 온도측정센서(6)에서 받은 데이터이며, 데이터(111)은 출입문(7)의 하부와 출입문(7)에서 2중으로 화염커튼(8.20)을 사용할 시, 가열로(5)의 내부에 설치된 온도측정센서(6)에서 받은 데이터이다. 도면에서와 같이 화염커튼의 사용 정도에 따라 가열로(5)의 내부 온도는 많은 차이를 나타냄을 알 수 있다. 즉, 단일 화염 커튼을 사용할 경우 출입문 개방에 따라 순간적으로 가열로 내부의 온도가 약 6도정도 하락한데 비해, 본 발명에 따른 이중 화염 커튼을 사용할 경우 내부 온도가 약 2도정도 밖에 하락하지 않음을 알 수 있었다.4 shows temperature data according to the degree of action of the flame curtain (8.20), the data 100 is a temperature sensor installed inside the heating furnace (5) when using the flame curtain (8) in the lower portion of the door (7) (6), the data 111 is a temperature measuring sensor (6) installed in the interior of the furnace (5) when using the flame curtain (8.20) in the lower part of the door (7) and the door (7) ) Is the data received from. As shown in the figure, it can be seen that the internal temperature of the heating furnace 5 shows many differences depending on the degree of use of the flame curtain. In other words, when a single flame curtain is used, the temperature inside the furnace decreases by about 6 degrees instantaneously as the door is opened. However, when the double flame curtain according to the present invention is used, the internal temperature decreases by only about 2 degrees. Could know.

분명히, 청구항들의 범위내에 있으면서 이러한 실시예들을 변형할 수 있는 많은 방식들이 있다. 다시 말하면, 이하 청구항들의 범위를 벗어남 없이 본 발명을 실시할 수 있는 많은 다른 방식들이 있을 수 있는 것이다.Apparently, there are many ways to modify these embodiments while remaining within the scope of the claims. In other words, there may be many other ways in which the invention may be practiced without departing from the scope of the following claims.

본 발명에 의하면, 소재를 인.출입하는 가열로 출구에 상.하로 화염커튼을 사용하여 가열로 출입문을 열고, 로봇이 인.출입하여도 온도저하가 없도록 하는 것에 의하여 가열로 내부의 가열소재가 균일하고 신속하게 가열되며, 가열로 내부 온도저하가 발생하지 않아 연속작업이 가능하여 작업능률향상등의 효과가 있다.According to the present invention, the heating material inside the furnace by opening the door of the furnace using flame curtains up and down at the outlet of the furnace for drawing in and out of the material and ensuring that there is no temperature drop even when the robot draws in and out. It is heated uniformly and quickly, and the internal temperature decrease does not occur in the heating furnace, so it is possible to work continuously and improve the work efficiency.

Claims (1)

핫 프레스 포밍용 소재 가열 장치에 있어서,In the material heating apparatus for hot press forming, 일정 가열 공간을 가지며, 소재의 출입을 위한 출입문이 일측에 설치되는 가열로;A heating furnace having a predetermined heating space and having an entrance door for entering and exiting the material; 상기 가열로 내부에 설치되어 소정의 로봇에 의해 상기 이송되는 소재를 안착시키기 위한 안착대; 및A seating plate installed inside the heating furnace for seating the transferred material by a predetermined robot; And 소재 인입을 위한 상기 가열로의 출입문 개방시 화염 커튼을 형성하기 위하여 상기 출입문의 상, 하부에 각각 설치되는 화염커튼 발생 장치를 포함함을 특징으로 하는 온도 하락을 방지하기 위한 핫 프레스 포밍용 소재 가열 장치.Material heating for hot press forming to prevent a temperature drop, characterized in that it comprises a flame curtain generating device which is installed on the upper and lower portions of the door to form a flame curtain when opening the door of the heating furnace for entering the material. Device.
KR1020060052324A 2006-06-12 2006-06-12 Heating apparatus of hot press forming workpiece for preventing reducing temperature KR101271851B1 (en)

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Publication number Priority date Publication date Assignee Title
KR20160067291A (en) * 2014-12-03 2016-06-14 주식회사 포스코 Heating furnace

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KR900000442Y1 (en) * 1987-02-13 1990-01-30 박세락 Automatic heating m/c of forging furnace
BR0305673A (en) * 2002-07-25 2004-10-19 Posco Method and skid element for reducing the temperature difference in plate and billet heating and a skid assembly using the same
KR200328201Y1 (en) * 2003-06-09 2003-09-26 한국생산기술연구원 Induction heating apparatus of variable forging billets with dual type frequency

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160067291A (en) * 2014-12-03 2016-06-14 주식회사 포스코 Heating furnace

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