JP2007118056A - Die unit of slab reduction press device - Google Patents

Die unit of slab reduction press device Download PDF

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Publication number
JP2007118056A
JP2007118056A JP2005315574A JP2005315574A JP2007118056A JP 2007118056 A JP2007118056 A JP 2007118056A JP 2005315574 A JP2005315574 A JP 2005315574A JP 2005315574 A JP2005315574 A JP 2005315574A JP 2007118056 A JP2007118056 A JP 2007118056A
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Prior art keywords
mold
key
slab
press device
die unit
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JP2005315574A
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JP4807037B2 (en
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Tatsuya Jinnai
達也 陣内
Koji Kameyama
剛二 亀山
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JFE Steel Corp
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JFE Steel Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a die unit having structure by which a die is securely prevented from falling from a holder as a die unit used for a width reduction press device or the like. <P>SOLUTION: In this die unit, the die 21 and the holder 22 are fastened with connecting bolts 23 and also connected with dovetail grooves 28a, 28b and fall preventing keys 27 to be inserted into the grooves. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、熱間圧延ラインに設置される幅圧下プレス装置等のスラブを圧下するプレス装置で用いられる金型ユニットに関するものである。   The present invention relates to a mold unit used in a press apparatus for reducing a slab such as a width reduction press apparatus installed in a hot rolling line.

熱間圧延ラインにおいては、ライン上に、幅圧下プレス装置あるいは厚み圧下プレス装置を設置し、その幅圧下プレス装置等によって材料(スラブ)を所定の寸法に成形した後、粗圧延および仕上圧延を行うようにしている場合がある(例えば、特許文献1参照。)。   In a hot rolling line, a width reduction press device or a thickness reduction press device is installed on the line, and after the material (slab) is formed into a predetermined size by the width reduction press device, rough rolling and finish rolling are performed. There are cases in which this is performed (see, for example, Patent Document 1).

一例として、図4は、幅圧下プレス装置によってスラブを幅方向に圧下している状態を示す平面図である。図4中、1はハウジング、2は金型ユニット、3は金型ホルダー、4は圧下シリンダ、5はフィードローラ、6はテーブルローラであり、フィードローラ5でスラブ10を進行させながら、圧下シリンダ4の作動によって金型ユニット2をスラブ10の幅方向に往復移動させて、順次スラブ10の幅圧下が行われる。   As an example, FIG. 4 is a plan view showing a state in which the slab is being pressed down in the width direction by a width reduction press device. In FIG. 4, 1 is a housing, 2 is a mold unit, 3 is a mold holder, 4 is a reduction cylinder, 5 is a feed roller, 6 is a table roller, and the feed roller 5 advances the slab 10 while reducing the cylinder. 4, the mold unit 2 is reciprocated in the width direction of the slab 10, and the width of the slab 10 is sequentially reduced.

そして、金型ユニット2は、スラブ10を成形する際にスラブ10に直接接する金型21と、金型21を金型ホルダー3に固定するための架台22とからなっており、図3は、そのような金型ユニット2の細部を示す斜視図である。金型ユニット2にはキー穴26とボルト孔24が設けられており、キー穴26にキー25を嵌め込み、ボルト孔24にボルト23を捩じ込むことで金型21と架台22の間を固定している(例えば、特許文献2参照。)。ここで、キー25とキー穴26は金型21と架台22の位置合わせと接合面内でのズレ防止のためのものであり、金型21と架台22の直接の締結はボルト23によってなされている。   The mold unit 2 includes a mold 21 that is in direct contact with the slab 10 when the slab 10 is molded, and a gantry 22 for fixing the mold 21 to the mold holder 3. It is a perspective view which shows the detail of such a mold unit 2. FIG. The mold unit 2 is provided with a key hole 26 and a bolt hole 24. The key 25 is fitted into the key hole 26, and the bolt 23 is screwed into the bolt hole 24 to fix the mold 21 and the mount 22. (For example, refer to Patent Document 2). Here, the key 25 and the key hole 26 are for positioning the mold 21 and the gantry 22 and for preventing displacement in the joining surface. The mold 21 and the gantry 22 are directly fastened by the bolt 23. Yes.

なお、金型ユニット2を上記のように構成しているのは、金型21が消耗品であることから適宜取り替える必要があり、その取り替えを容易に行うことができるようにしているためである。
特開平6−154810号公報 特開2000−343174号公報
The reason why the mold unit 2 is configured as described above is that the mold 21 is a consumable part, so that the mold unit 2 needs to be replaced as appropriate, and can be easily replaced. .
JP-A-6-154810 JP 2000-343174 A

しかし、前述のような金型ユニット2を用いた場合、幅圧下等を行っている最中に、金型21が架台22から外れて落下する事故が発生することがある。これは、ボルト23に作用する締め付け応力に対して、ネジ山が切り欠きとなり強度不足になって破断したためと考えられる。   However, when the above-described mold unit 2 is used, there may occur an accident in which the mold 21 is detached from the gantry 22 and falls during the width reduction or the like. This is considered to be because the thread became notched and the strength became insufficient with respect to the tightening stress acting on the bolt 23, resulting in fracture.

このような金型21の落下事故が発生すると、設備の損傷やラインの停止を招くことになり、大きな損害を被ることになる。そこで、この落下事故を未然に防止するために、ボルト23の亀裂点検や交換を頻繁に行うことになるが、余分な労力やライン休止が必要となり、生産性を阻害することになる。   When such a fall accident of the mold 21 occurs, the equipment is damaged or the line is stopped, which causes a great damage. Therefore, in order to prevent this drop accident, the bolt 23 is frequently inspected and replaced for cracks. However, extra labor and line stoppage are required, which hinders productivity.

本発明は、上記のような事情に鑑みてなされたものであり、幅圧下プレス装置等で用いられる金型ユニットとして、金型が架台から落下することを的確に防止することができる構造の金型ユニットを提供することを目的とするものである。   The present invention has been made in view of the circumstances as described above, and is a mold unit having a structure capable of accurately preventing a mold from dropping from a gantry as a mold unit used in a width reduction press device or the like. It is intended to provide a mold unit.

上記の課題を解決するために、本発明は以下の特徴を有する。   In order to solve the above problems, the present invention has the following features.

[1]熱間スラブを圧下するプレス装置で用いられ、金型と架台を有する金型ユニットであって、金型と架台はボルトで締結されているとともに、あり溝とそれに挿入される落下防止キーで連結されていることを特徴とするスラブ圧下プレス装置の金型ユニット。   [1] A mold unit having a mold and a pedestal used in a pressing device for reducing a hot slab, the mold and the pedestal being fastened with bolts, and a dovetail groove and a fall prevention inserted into the grooving A die unit of a slab press machine, which is connected with a key.

本発明においては、金型と架台をボルトでの締結以外に、あり溝と落下防止キーで連結するようにしており、あり溝と落下防止キーにはボルトのようなねじ山がなく、応力負荷部の面積がボルトより大きく、許容応力も大きことから、破断の危険性が非常に低い。したがって、ボルトが破断した場合でも、あり溝と落下防止キーの連結によって、金型が架台から落下することを的確に防止することができる。その結果、設備の損傷を防ぐことができるとともに、ボルトの亀裂点検や交換を頻繁に行う必要がなくなり、生産性を向上させることが可能となる。   In the present invention, in addition to fastening the mold and the base with bolts, the dovetail groove and the fall prevention key are connected by a fall prevention key. Since the area of the part is larger than the bolt and the allowable stress is large, the risk of breakage is very low. Therefore, even when the bolt is broken, it is possible to accurately prevent the mold from dropping from the mount by connecting the dovetail groove and the fall prevention key. As a result, it is possible to prevent damage to the equipment, and it is not necessary to frequently inspect and replace the cracks of the bolts, thereby improving productivity.

本発明の一実施形態を図面に基づいて説明する。   An embodiment of the present invention will be described with reference to the drawings.

図1は、本発明の一実施形態に係る金型ユニットを示す斜視図である。この実施形態に係る金型ユニット20は、図3に示した金型ユニット2と同様に、スラブを成形する際にスラブに直接接する金型21と、金型21を金型ホルダー3に固定するための架台22とからなっており、金型21と架台22にはキー穴26とボルト孔24が設けられており、キー穴26にキー25を嵌め込み、ボルト孔24にボルト23を捩じ込むことで金型21と架台22の間を固定するようになっている。   FIG. 1 is a perspective view showing a mold unit according to an embodiment of the present invention. The mold unit 20 according to this embodiment, like the mold unit 2 shown in FIG. 3, fixes the mold 21 that is in direct contact with the slab when the slab is molded, and the mold 21 to the mold holder 3. The key 21 and the bolt hole 24 are provided in the mold 21 and the base 22, the key 25 is fitted into the key hole 26, and the bolt 23 is screwed into the bolt hole 24. Thus, the space between the mold 21 and the gantry 22 is fixed.

そして、この実施形態に係る金型ユニット20は、上記以外に、金型21側にあり溝28a、架台22側にあり溝28bが設けられており、あり溝28aとあり溝28bに落下防止キー27を挿入することによって、金型21と架台22を連結するようになっている。なお、図示していないが、落下防止キー27の上端には、あり溝28a、28bから抜け落ちないように鍔部が設けられている。   In addition to the above, the mold unit 20 according to this embodiment is provided with a groove 28a on the mold 21 side and a groove 28b on the gantry 22 side, and a drop prevention key in the dove groove 28a and the dove groove 28b. By inserting 27, the mold 21 and the gantry 22 are connected. Although not shown, a hook portion is provided at the upper end of the fall prevention key 27 so as not to fall out from the dovetail grooves 28a and 28b.

上記のような構成とすることで、金型21と架台22の位置合わせと接合面内でのズレ防止がキー25とキー穴26によってなされるとともに、金型21と架台22の締結はボルト23によってなされ、さらに、あり溝28a、28bと落下防止キー27によって金型21と架台22の連結がなされる。   With the configuration described above, the positioning of the mold 21 and the gantry 22 and the prevention of displacement within the joint surface are made by the key 25 and the key hole 26, and the mold 21 and the gantry 22 are fastened by the bolt 23. Further, the die 21 and the gantry 22 are connected by the dovetail grooves 28 a and 28 b and the fall prevention key 27.

その際、あり溝28a、28bと落下防止キー27にはボルト23のようなねじ山がないので締め付け応力が作用しないことから破断の危険性が非常に低い。したがって、ボルト23が破断した場合でも、あり溝28a、28bと落下防止キー27の連結によって、金型21が架台22から落下することを的確に防止することができる。その結果、ボルト23の亀裂点検や交換を頻繁に行う必要がなくなり、生産性を向上させることが可能となる。   At that time, since the dovetail grooves 28a and 28b and the fall prevention key 27 do not have a thread like the bolt 23, the tightening stress does not act, so the risk of breakage is very low. Therefore, even when the bolt 23 breaks, the connection between the dovetail grooves 28 a and 28 b and the fall prevention key 27 can accurately prevent the mold 21 from falling from the mount 22. As a result, it is not necessary to frequently inspect and replace the bolt 23 for cracks, and productivity can be improved.

なお、あり溝28a、28bと落下防止キー27は、金型21が架台22から落下することを防止すればよいので、締結力を有する必要はないが、締結力を持たせて、ボルト23による締結力を補強するようにしてもよい。   The dovetail grooves 28a and 28b and the fall prevention key 27 only need to prevent the mold 21 from falling from the gantry 22, and therefore do not need to have a fastening force. The fastening force may be reinforced.

また、あり溝28a、28bや落下防止キー27の形状は、金型21と架台22を連結することができればよく、図1に示したものに限定されない。例えば、あり溝28a、28bの形状として、図2に示したものを用いることができる。ただし、金型21と架台22の接合面の摩耗や手入れをした結果、金型2のあり溝28aと架台22のあり溝28bが不連続になって、落下防止キー27が挿入できなくなることがないように、接合面近傍の形状は接合面を挟んで対称となっているものが好ましい。すなわち、例えば、図1、図2(a)、(b)に示した形状である。   The shapes of the dovetail grooves 28a and 28b and the fall prevention key 27 are not limited to those shown in FIG. 1 as long as the mold 21 and the mount 22 can be connected. For example, the shape shown in FIG. 2 can be used as the shape of the dovetail grooves 28a and 28b. However, as a result of wear and care of the joint surface between the mold 21 and the gantry 22, the dovetail groove 28a of the mold 2 and the dovetail groove 28b of the gantry 22 become discontinuous, and the fall prevention key 27 may not be inserted. It is preferable that the shape in the vicinity of the joint surface is symmetric with respect to the joint surface so as not to exist. That is, for example, the shape shown in FIGS. 1, 2A, and 2B.

さらに、ここでは、あり溝と落下防止キーを2個設けているが、1個でもよく、設置する個数は適宜定めればよい。   Furthermore, although two dovetail grooves and two fall prevention keys are provided here, one may be provided, and the number to be installed may be determined as appropriate.

本発明の一実施形態に係る金型ユニットの斜視図である。It is a perspective view of the metallic mold unit concerning one embodiment of the present invention. 本発明の一実施形態における他の金型ユニットの説明図である。It is explanatory drawing of the other die unit in one Embodiment of this invention. 従来の金型ユニットの斜視図である。It is a perspective view of the conventional mold unit. 幅圧下プレス装置によってスラブを幅圧下している状態を示す平面図である。It is a top view which shows the state which is carrying out the width reduction of the slab with the width reduction press apparatus.

符号の説明Explanation of symbols

1 ハウジング
2 金型ユニット
3 金型ホルダー
4 圧下シリンダ
5 フィードローラ
6 テーブルローラ
10 スラブ
20 金型ユニット
21 金型
22 架台
23 ボルト
24 ボルト孔
25 キー
26 キー穴
27 落下防止キー
28a、28b あり溝
DESCRIPTION OF SYMBOLS 1 Housing 2 Mold unit 3 Mold holder 4 Rolling cylinder 5 Feed roller 6 Table roller 10 Slab 20 Mold unit 21 Mold 22 Mount 23 Bolt 24 Bolt hole 25 Key 26 Key hole 27 Fall prevention key 28a, 28b Groove

Claims (1)

スラブを圧下するプレス装置で用いられ、金型と架台を有する金型ユニットであって、金型と架台はボルトで締結されているとともに、あり溝とそれに挿入される落下防止キーで連結されていることを特徴とするスラブ圧下プレス装置の金型ユニット。   It is a mold unit that has a mold and a pedestal that is used in a press device that squeezes down the slab. A mold unit of a slab reduction press device, characterized in that
JP2005315574A 2005-10-31 2005-10-31 Mold unit of slab press machine Active JP4807037B2 (en)

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JP4807037B2 JP4807037B2 (en) 2011-11-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102647664B1 (en) * 2023-02-14 2024-03-14 나이프플러스 주식회사 Punch Assembly for Notching Process of Electrode

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6174710A (en) * 1984-09-19 1986-04-17 Hitachi Ltd Method and device for reducing width of slab
JPS61107440U (en) * 1984-12-17 1986-07-08
JPH01135101U (en) * 1988-03-08 1989-09-14
JPH11156401A (en) * 1997-11-26 1999-06-15 Ishikawajima Harima Heavy Ind Co Ltd Plate thickness rolling reduction pressing apparatus
JP2000343174A (en) * 1999-06-02 2000-12-12 Ishikawajima Harima Heavy Ind Co Ltd Mold for thickness draft press

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6174710A (en) * 1984-09-19 1986-04-17 Hitachi Ltd Method and device for reducing width of slab
JPS61107440U (en) * 1984-12-17 1986-07-08
JPH01135101U (en) * 1988-03-08 1989-09-14
JPH11156401A (en) * 1997-11-26 1999-06-15 Ishikawajima Harima Heavy Ind Co Ltd Plate thickness rolling reduction pressing apparatus
JP2000343174A (en) * 1999-06-02 2000-12-12 Ishikawajima Harima Heavy Ind Co Ltd Mold for thickness draft press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102647664B1 (en) * 2023-02-14 2024-03-14 나이프플러스 주식회사 Punch Assembly for Notching Process of Electrode

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