JPS62187576A - Welding method for blanking blade for die cutter - Google Patents
Welding method for blanking blade for die cutterInfo
- Publication number
- JPS62187576A JPS62187576A JP2840486A JP2840486A JPS62187576A JP S62187576 A JPS62187576 A JP S62187576A JP 2840486 A JP2840486 A JP 2840486A JP 2840486 A JP2840486 A JP 2840486A JP S62187576 A JPS62187576 A JP S62187576A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- punching blade
- blanking
- welding
- supporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003466 welding Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 14
- 239000011261 inert gas Substances 0.000 claims abstract description 6
- 238000004080 punching Methods 0.000 claims description 37
- 238000005520 cutting process Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 230000006866 deterioration Effects 0.000 abstract description 2
- 235000013305 food Nutrition 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 238000005219 brazing Methods 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明鵜、溶接後の仕上がりおよび接合強度に優れた
ダイカッタ用打抜刃の溶接方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for welding a punching blade for a die cutter, which has excellent finish after welding and excellent joint strength.
従来技術とその欠点
帯状鋼板の一方の長手端縁部に刃先加工を施した刃材を
、打抜き対象物の輪郭に合わせて屈曲形成し、この刃材
を木型に嵌挿固定してなるダイカッタ用打抜刃(「トム
ソン刃」と一般に称する)が、広〈産業上の各種用途に
供されている。第1図に示すように、この打抜刃10は
、その基部を木型12に嵌挿され、刃先10aを型表面
から必要量だけ突出させている。そして打抜き対象物を
完全に打抜くためには、必然的に当該打抜刃1oの両端
部10b、、、10bは、第2図に示すように表金に突
き合わされている必要がある。この突き合わせが不完全
であると、木型12に嵌挿固定した状態において前記両
端部10b、10bに微少な隙間が介在し、ダイカッタ
の稼動による打抜き回数の増加に伴って前記隙間が次第
に拡大し、打抜き形状が不揃いになったり、切口が良好
に仕上がらない等の不都合がある。Conventional technology and its disadvantages A die cutter is made by bending a blade material with a cutting edge processed on one longitudinal edge of a strip steel plate to match the contour of the object to be punched, and inserting and fixing this blade material into a wooden mold. Punching blades (commonly referred to as ``Thomson blades'') are used in a wide variety of industrial applications. As shown in FIG. 1, the base of the punching blade 10 is fitted into a wooden mold 12, with the cutting edge 10a protruding from the surface of the mold by a required amount. In order to completely punch out the object to be punched, both ends 10b, . If this butting is incomplete, a minute gap will exist between the ends 10b, 10b when they are inserted and fixed in the wooden die 12, and the gap will gradually expand as the number of punches increases due to the operation of the die cutter. However, there are inconveniences such as the punched shape becoming irregular and the cut end not finishing well.
このために従来は、第2図に示す打抜刃10の相互に突
き合わせた両端部10 b、10 bを溶接することに
より対処している。しかるにこの溶接は、通常の溶接方
法によっては加熱時間が長くなるため、焼入硬化処理を
施した刃先部が焼鈍されて切味が低下し、しかも打抜き
中に僅かな抵抗に遭遇しただけで容易に変形してしまう
欠点を有している。そこでこの溶接手段として、一般に
銀ロー付けが実施されているが、これによる打抜刃は食
品衛生の関連法規により、食品の打抜きへの使用は禁止
されている。また銀ロー付けでは、接合部の裏側に融け
た温材が回り込んで固化し凹凸部を形成するので、これ
を削り取る仕上げ加工が必要となって、極めて面倒であ
った。Conventionally, this problem has been dealt with by welding the mutually abutting ends 10b, 10b of the punching blade 10 shown in FIG. However, this welding requires a long heating time depending on the normal welding method, and the quench-hardened cutting edge is annealed, resulting in a decrease in sharpness.Furthermore, even if a slight resistance is encountered during punching, it is easy to weld. It has the disadvantage of being deformed. Therefore, silver brazing is generally used as a welding method, but punching blades made using this method are prohibited from being used for punching food products according to food hygiene regulations. Furthermore, in silver brazing, the molten hot material wraps around the back side of the joint and solidifies, forming uneven parts, which require a finishing process to scrape off, which is extremely troublesome.
前記銀ロー付けに代えて、第3図に示すように、打抜刃
10の突き合わせた両端縁部10b、10bの適所(刃
先10aを避ける)に複数のスポット溶接を施すことも
試みられているが、これは部分付けのために接合強度が
劣り、使用中にその接合部位において破断してしまう欠
点がある。また刃先10aの部分にはスポット溶接がな
されていないので、繊維質の材料を打抜くような場合に
は、前記刃先10aの突き合わせ部に位置する隙間に糸
等が次第に食い込み、この隙間を徐々に拡大させると共
に、打抜き時の仕上がりが不良になる等の粱点がある。Instead of the silver brazing, as shown in FIG. 3, it has also been attempted to perform a plurality of spot welds at appropriate locations (avoiding the cutting edge 10a) on both end edges 10b, 10b of the punching blade 10 that abut against each other. However, this has the disadvantage that the joint strength is poor due to the partial attachment, and it may break at the joint site during use. In addition, since spot welding is not performed at the cutting edge 10a, when punching fibrous material, the thread or the like gradually bites into the gap located at the abutting part of the cutting edge 10a, and gradually closes this gap. There are disadvantages such as enlargement and poor finish during punching.
発明の目的
本発明は、ダイカッタ用打抜刃に内在している前記欠点
に鑑み、これを好適に解決するべく案出されたものであ
って、突き合おせ部の溶接後の仕上がりが良好で接合強
度に優れ、しかも刃先の劣化を来すことのない溶接方法
を提供することを目的とする。Purpose of the Invention The present invention has been devised in view of the above-mentioned drawbacks inherent in the punching blade for a die cutter, and has been devised to suitably solve this problem, and provides a good finish after welding the butt part. The purpose of the present invention is to provide a welding method that has excellent joint strength and does not cause deterioration of the cutting edge.
問題点を解決するための手段
前記問題点を克服し、所期の目的を達成するため本発明
に係る溶接方法は、一方の長手端縁部に刃先加工を施し
た帯状鋼板を、打抜き対象物の輪郭に合わせて所望の形
状に形成してなるダイカッタ用打抜刃において、当該打
抜刃の両端部を突き合わせ溶接するに際し、TIG溶接
機のトーチ走=3−
行領域に交換自在に配設される支持ブロックの支持面に
、前記溶接すべき打抜刃の両端部を含む近傍の形状と合
致する輪郭を形成し、この支持ブロックの支持面上の定
位置に前記打抜刃の両端部を密着的に突き合わせて保持
し、次いで不活性ガスの放流とそれに伴うタングステン
電極からのアークを前記突き合わせ部に照射しつつ、前
記トーチを走行させることを特徴とする。Means for Solving the Problems In order to overcome the above-mentioned problems and achieve the intended purpose, the welding method according to the present invention provides a welding method in which a strip-shaped steel plate having a cutting edge processed on one longitudinal edge is used as a punching object. In the punching blade for a die cutter formed into a desired shape according to the outline of A contour that matches the shape of the vicinity including both ends of the punching blade to be welded is formed on the support surface of the support block to be welded, and both ends of the punching blade are placed at fixed positions on the support surface of the support block. The torch is then moved while the abutting portions are held closely abutted against each other, and then an inert gas is discharged and an accompanying arc from a tungsten electrode is irradiated onto the abutting portions.
実施例
次に、本発明に係るダイカッタ用打抜刃の溶接方法につ
き説明する。本件の溶接には、トーチ部にタングステン
電極を使用し、当該電極と溶接対象物との間にアルゴン
等の不活性ガスを放流してアーク溶接を行なうTIG溶
接機が好適に使用され、その電源には高精度の定電流回
路が組込まれて、電源電圧の変動、アーク電圧の変動そ
の他周囲温度の変化によっても影響を受けることなく、
所定の溶接電流を供給し得るようになっている。EXAMPLE Next, a method of welding a punching blade for a die cutter according to the present invention will be explained. For this welding, a TIG welding machine is preferably used, which uses a tungsten electrode in the torch section and performs arc welding by discharging an inert gas such as argon between the electrode and the object to be welded. is equipped with a high-precision constant current circuit, so it is unaffected by fluctuations in power supply voltage, arc voltage, and other changes in ambient temperature.
A predetermined welding current can be supplied.
またトーチの走行領域には、溶接対象物となる打抜刃を
支持してクランプするための支持ブロックが交換自在に
配設されている。Further, in the travel area of the torch, a support block for supporting and clamping the punching blade, which is the object to be welded, is replaceably arranged.
例えば第4図に示すように、この支持ブロック14は、
溶接機本体のトーチ走行領域およびクランプ機構の下方
に配設したバックパー16にボルト18を介して着脱自
在に装着されるものであっる。前記支持ブロック14は
、砲金から一体的に削り出した矩形状の基台14aおよ
び水平に延出する支持部14bを備え、前記支持部14
bに銅製の位置規制ブロック20がボルト22により固
定されている。For example, as shown in FIG. 4, this support block 14 is
It is detachably attached via a bolt 18 to a back par 16 disposed in the torch travel area of the welding machine body and below the clamp mechanism. The support block 14 includes a rectangular base 14a that is integrally machined from gun metal and a horizontally extending support portion 14b.
A position regulating block 20 made of copper is fixed to b by bolts 22.
この支持部14bの上面は、前記打抜刃1oにおける溶
接すべき両端部10b、10bを含む近傍の形状と合致
する輪郭を形成しである。例えば第4図に示す支持ブロ
ック14では、接合すべき打抜刃10が全体として矩形
状をなすものであって、両端部10 b、10 bの近
傍は平担面になっているから、従属的に支持部14bの
上面も同じく平担面として形成されている。しかるに第
5図に示す例では、打抜刃10は極端にデフォルメされ
た熊等の動物の輪郭形状に屈曲形成されているので、そ
の両端部10 b、10 bの近傍における形状に合致
させた形状が、前記支持部14bの上面に施されている
。更に第6図に示す例では、打抜刃10のコーナ一部分
の溶接を行なうために、支持部14bの上面は図示の如
く山形に成形されている。The upper surface of this support portion 14b has a contour that matches the shape of the vicinity of the punching blade 1o including both ends 10b to be welded. For example, in the support block 14 shown in FIG. 4, the punching blade 10 to be joined has a rectangular shape as a whole, and the vicinity of both ends 10b, 10b is a flat surface. Similarly, the upper surface of the support portion 14b is also formed as a flat surface. However, in the example shown in FIG. 5, the punching blade 10 is bent to match the outline of an extremely deformed animal such as a bear, so the punching blade 10 is made to match the shape in the vicinity of both ends 10b, 10b. A shape is provided on the upper surface of the support portion 14b. Further, in the example shown in FIG. 6, in order to weld a portion of the corner of the punching blade 10, the upper surface of the support portion 14b is formed into a chevron shape as shown.
なお第4図〜第6図に示す実施例では、何れも支持部1
4bの上面における前記トーチ走行軌跡と整列する位置
に、線状の凹溝24または面取り26が施しである。こ
れを設けた理由は、この支持部14上に打抜刃10の両
端部10 b、10 bを突き合わせて溶接した際に、
発生する放熱を促進するためのものである。Note that in the embodiments shown in FIGS. 4 to 6, the support portion 1
A linear concave groove 24 or a chamfer 26 is provided on the upper surface of 4b at a position aligned with the torch travel locus. The reason for providing this is that when both ends 10b, 10b of the punching blade 10 are butted and welded on this support part 14,
This is to promote heat dissipation.
このように構成した支持ブロック14の支持部14b上
に、前記打抜刃10の両端部10b。Both ends 10b of the punching blade 10 are placed on the support portion 14b of the support block 14 configured in this manner.
10bを密着的に突き合わせて保持し、図示しない機構
によりクランプする。このとき前記位置規制ブロック2
0が、打抜刃10を支持ブロック14の定位置に規制す
る。次いで不活性ガスの放流と、それに伴うタングステ
ン電極からのアークを前記突き合わせ部10 b、10
bに照射しつつ、前記トーチを走行させることにより
、アーク溶接を実施する。なお不活性ガスの種類、放流
時間、アーク照射時間等の要素は、打抜刃10を構成す
る材質や厚み等に応じて、最適の数値が選択される。10b are held closely against each other and clamped by a mechanism not shown. At this time, the position regulating block 2
0 restricts the punching blade 10 to a fixed position on the support block 14. Next, an inert gas is discharged and an arc from the tungsten electrode is connected to the butt portions 10b, 10.
Arc welding is carried out by running the torch while irradiating the area b. For elements such as the type of inert gas, the discharge time, and the arc irradiation time, optimal values are selected depending on the material, thickness, etc. of the punching blade 10.
このように本発明に係る方法によると、従来困難であっ
た薄鋼板の端部突き合わせ溶接が極めて簡単になされ、
しかも接合時の仕上がりは至極良好であって、後工程と
してのパリ取り作業は全く必要としない。また短時間で
溶接され、アークによる溶接温度は極めて高いので、刃
先部分が焼鈍されて強度劣化することがない。むしろ更
にその部分での焼入硬化が促進されるので、他の部分よ
りも引張り強度が向上する。従って必要に応じてガスバ
ーナにより若干焼鈍しを施すことが推奨されるが、これ
は必ずしも要件ではない。As described above, according to the method of the present invention, end butt welding of thin steel plates, which was difficult in the past, can be done extremely easily.
Moreover, the finish at the time of joining is extremely good, and no deburring work is required as a post-process. Furthermore, since the welding takes place in a short time and the welding temperature by the arc is extremely high, the cutting edge will not be annealed and its strength will not deteriorate. In fact, quench hardening is further promoted in that part, so the tensile strength is improved more than in other parts. Therefore, it is recommended to perform some annealing with a gas burner if necessary, but this is not necessarily a requirement.
本発明方法により得られた打抜刃は、銀ローを使用して
いないから食品衛生上の規制に触れることがなく、従っ
て食品の打抜きにも好適に使用される。また突き合わせ
部は完全に接合しているので、従来の如く隙間を介して
繊維等を噛み込んだり、徐々に拡開して打抜き精度を低
下させたりすることがない。Since the punching blade obtained by the method of the present invention does not use silver solder, it does not comply with food hygiene regulations, and therefore can be suitably used for punching food products. In addition, since the abutted portions are completely joined, there is no possibility that fibers or the like will be caught through the gaps or that they will gradually spread out and reduce the punching accuracy, unlike in the conventional case.
第1図はダイカッタ用打抜刃の一般的な構造を概略的に
示す斜視図、第2図は打抜刃の両端部の接合状態を示す
説明図、第3図はスポット溶接を施した従来の接合手段
により得られる打抜刃の状態を示す斜視図、第4図〜第
6図は本発明方法に使用される冶具の説明図である。Fig. 1 is a perspective view schematically showing the general structure of a punching blade for a die cutter, Fig. 2 is an explanatory diagram showing the joining state of both ends of the punching blade, and Fig. 3 is a conventional one using spot welding. FIGS. 4 to 6 are perspective views showing the state of the punching blade obtained by the joining means, and FIGS. 4 to 6 are explanatory views of the jig used in the method of the present invention.
Claims (1)
抜き対象物の輪郭に合わせて所望の形状に形成してなる
ダイカッタ用打抜刃において、当該打抜刃の両端部を突
き合わせ溶接するに際し、TIG溶接機のトーチ走行領
域に交換自在に配設される支持ブロックの支持面に、前
記溶接すべき打抜刃の両端部を含む近傍の形状と合致す
る輪郭を形成し、この支持ブロックの支持面上の定位置
に前記打抜刃の両端部を密着的に突き合わせて保持し、
次いで不活性ガスの放流とそれに伴うタングステン電極
からのアークを前記突き合わせ部に照射しつつ、前記ト
ーチを走行させることを特徴とするダイカッタ用打抜刃
の溶接方法。In a punching blade for a die cutter, which is made by forming a band-shaped steel plate with a cutting edge on one longitudinal edge into a desired shape to match the contour of the object to be punched, both ends of the punching blade are butt-welded. At this time, a contour that matches the shape of the vicinity including both ends of the punching blade to be welded is formed on the support surface of a support block that is replaceably disposed in the torch travel area of the TIG welding machine, and this support block holding both ends of the punching blade in a fixed position on the supporting surface of the blade, closely abutting each other;
A method for welding a punching blade for a die cutter, characterized in that the torch is run while the abutting portion is then irradiated with an inert gas discharge and an accompanying arc from a tungsten electrode.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2840486A JPH0669617B2 (en) | 1986-02-12 | 1986-02-12 | Welding method of punching blade for die-cutting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2840486A JPH0669617B2 (en) | 1986-02-12 | 1986-02-12 | Welding method of punching blade for die-cutting |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62187576A true JPS62187576A (en) | 1987-08-15 |
JPH0669617B2 JPH0669617B2 (en) | 1994-09-07 |
Family
ID=12247723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2840486A Expired - Lifetime JPH0669617B2 (en) | 1986-02-12 | 1986-02-12 | Welding method of punching blade for die-cutting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0669617B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0760699A (en) * | 1993-06-18 | 1995-03-07 | Erutetsuku:Kk | Punching edge die for printed matter such as label or seal |
JP2017077585A (en) * | 2015-10-20 | 2017-04-27 | 株式会社Sds Japan | Automatic welding device for welding trimming die blade |
-
1986
- 1986-02-12 JP JP2840486A patent/JPH0669617B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0760699A (en) * | 1993-06-18 | 1995-03-07 | Erutetsuku:Kk | Punching edge die for printed matter such as label or seal |
JP2017077585A (en) * | 2015-10-20 | 2017-04-27 | 株式会社Sds Japan | Automatic welding device for welding trimming die blade |
Also Published As
Publication number | Publication date |
---|---|
JPH0669617B2 (en) | 1994-09-07 |
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