JPH0753326B2 - Kitchen knife manufacturing method - Google Patents
Kitchen knife manufacturing methodInfo
- Publication number
- JPH0753326B2 JPH0753326B2 JP13216191A JP13216191A JPH0753326B2 JP H0753326 B2 JPH0753326 B2 JP H0753326B2 JP 13216191 A JP13216191 A JP 13216191A JP 13216191 A JP13216191 A JP 13216191A JP H0753326 B2 JPH0753326 B2 JP H0753326B2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- shaped
- plate
- rod
- forging
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
- B21H7/10—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons knives; sickles; scythes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は包丁の製造方法に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kitchen knife manufacturing method.
【０００２】[0002]
【従来の技術】従来の包丁の製造方法として、板状素材
を鍛造ロ−ルで刀身の長手方向に圧延させて、刀身に打
抜くものが知られている。また刀身につばを形成する場
合は、刀身とつばを別体に製作して、つばを刀身に溶接
で固着している。2. Description of the Related Art As a conventional method for manufacturing a knife, there is known a method in which a plate-shaped material is rolled in a longitudinal direction of a blade by a forged roll and punched into the blade. When forming a collar on the blade, the blade and the collar are manufactured separately and the collar is fixed to the blade by welding.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の包丁の製造
方法は、素材の１方向の圧延のみにより、素材の使用効
率が悪く、また刀身とつばの溶着にて、その溶着部が折
れやすくしかもその溶着作業が面倒である。In the above-mentioned conventional method of manufacturing a kitchen knife, the use efficiency of the raw material is poor only by rolling the raw material in one direction, and the welded portion is easily broken due to the welding of the blade and the collar. The welding work is troublesome.
【０００４】本発明は、素材の使用効率が良く、刀身と
つばの連らなる部分が折れにくく、つばの形成が容易な
包丁の製造方法を提供しようとするものである。An object of the present invention is to provide a method of manufacturing a kitchen knife which has a high efficiency of use of a material, a portion where a blade and a brim are continuously connected is not easily broken, and a brim can be easily formed.
【０００５】[0005]
【課題を解決するための手段】本発明は上記目的を達成
するために、棒状素材を型鍛造にて刀身用としてほぼ長
方形の板状体に変形させ、さらにロ−ル鍛造にて刀身の
幅方向と長手方向に順次圧延して、刀身形に打ち抜く。
さらには棒状素材の型鍛造の際に、板状体への変形と同
時に棒状素材からつばを形成し、つばの後端に切削手段
にて環状の溝を形成してつばの後端を整え、このつばに
連らなる棒状部分をロ−ル鍛造にて長手方向に圧延し、
切断手段でこみの寸法に切り落としてこみを形成する。In order to achieve the above object, the present invention transforms a rod-shaped material into a substantially rectangular plate-shaped body for a blade by die forging, and further rolls the width of the blade by forging. Sequentially and longitudinally rolled, punched into a blade shape.
Furthermore, during die forging of the rod-shaped material, a collar is formed from the rod-shaped material at the same time as the plate-shaped body is deformed, and a rear end of the collar is formed by forming an annular groove at the rear end of the collar by cutting means, Roll the rod-shaped part that is continuous with this collar in the longitudinal direction by roll forging,
The cutting means cuts to the size of the dent to form the dent.
【０００６】以下本発明の実施例につき図面を参照しな
がら具体的に説明する。Embodiments of the present invention will be specifically described below with reference to the drawings.
【０００７】素材（１）はステンレス鋼の丸棒で、包丁
１丁の作製に要する長さを有する（図１）。この素材
（１）を１０５０℃程度に加熱して、その一部をエア−
スタンプ（図示せず）による型鍛造にて刀身（２）の形
成用としてほぼ長方形の板状体（３）に１次的に変形さ
せると同時にこの板状体（３）に連らなるつば（４）を
形成する（図２）。The material (1) is a round bar of stainless steel and has a length required for producing one kitchen knife (FIG. 1). This material (1) is heated to about 1050 ° C and a part of it is air-
By means of die forging with a stamp (not shown), it is primarily deformed into a substantially rectangular plate-like body (3) for forming the blade (2), and at the same time, a brim connected to this plate-like body (3) ( 4) is formed (FIG. 2).
【０００８】次に上記板状体（３）を９００℃〜１００
０℃程度に加熱して、治具（図示せず）でつば（４）に
連らなる丸棒状の部分（５）（こみ（６）の形成部分）
を挟んで、板状体（３）を上下一対の鍛造ロ−ル
（７），（８）の隙間にてロ−ルの前方から後方に送り
込む（図９，10）。鍛造ロ−ル（７），（８）の矢印方
向の回転にて（図10）、板状体（３）を刀身（２）の幅
方向に圧延する。この圧延を２〜３回繰り返すことによ
り刀身（２）の幅の形成に必要な大きさに２次的に変形
された板状体（９）が得られる（図３）。Next, the plate-like body (3) is heated to 900 ° C. to 100 ° C.
A round bar portion (5) that is heated to about 0 ° C. and connected to the brim (4) with a jig (not shown) (formation portion of the dent (6))
The plate-like body (3) is fed from the front of the roll to the rear through the gap between the pair of upper and lower forged rolls (7) and (8) with the sandwiched therebetween (FIGS. 9 and 10). The plate-like body (3) is rolled in the width direction of the blade (2) by rotating the forged rolls (7) and (8) in the directions of the arrows (Fig. 10). By repeating this rolling a couple of times, a plate-like body (9) secondarily deformed into a size necessary for forming the width of the blade (2) is obtained (FIG. 3).
【０００９】次に、上記２次変形の板状体の部分（９）
を７００℃〜８００℃程度に加熱して、治具（図示せ
ず）で丸棒部分（５）を挟んで、板状部分（９）を上下
一対の鍛造ロ−ル(10)，(11)の隙間にてロ−ルの前方か
ら後方に送り込む（図11）。鍛造ロ−ル(10)，(11)の矢
印方向の回転にて、板状体の部分（９）を刀身（２）の
長手方向に圧延する。この圧延を２〜３回繰り返すこと
により刀身の長さの形成に必要な大きさに３次的に変形
された板状体（12）が得られる（図４）。Next, the plate-shaped body portion (9) of the above secondary deformation.
Is heated to about 700 ° C to 800 ° C, the round bar portion (5) is sandwiched by a jig (not shown), and the plate portion (9) is paired with the upper and lower forged rolls (10), (11). ) And feed it from the front to the rear of the roll (Fig. 11). The plate-shaped portion (9) is rolled in the longitudinal direction of the blade (2) by rotating the forged rolls (10) and (11) in the directions of the arrows. By repeating this rolling a couple of times, a plate-like body (12) is obtained which is three-dimensionally deformed into a size necessary for forming the length of the blade (FIG. 4).
【００１０】上記板状体（12）は波を打っているので、
ほぼ４００℃〜５００℃に加熱してスプリングハンマ−
（図示せず）で平らにする。Since the plate-like body (12) is undulating,
Spring hammer by heating to approximately 400-500 ℃
Flatten with (not shown).
【００１１】上記素材全体をほぼ７００℃〜８００℃に
て半日焼鈍して、板状部分（９）をプレスで型抜きし
て、刀身（２）を形成する（図５）。The entire material is annealed at about 700 ° C. to 800 ° C. for half a day, and the plate-like portion (9) is die-cut by a press to form a blade (2) (FIG. 5).
【００１２】丸棒状の部分（５）を旋盤のチャック(13)
でつかんで回転し、つば（４）の後端をこみ（６）の大
きさにバイト(14)で環状の溝(15)に切削する（図13）。
これにて、つば（４）の後端面(16)が柄にぴったり当る
ように整えられる（図６）。The round bar portion (5) is attached to the lathe chuck (13).
Grip with and rotate, and cut the rear end of the collar (4) into the annular groove (15) with the cutting tool (14) in the size of the dent (6) (Fig. 13).
By this, the rear end surface (16) of the collar (4) is arranged so as to just hit the handle (Fig. 6).
【００１３】丸棒状の部分（５）を１０００℃〜１１０
０℃程度に加熱して、治具（図示せず）で刀身（２）を
挟んで、丸棒状の部分（５）を上下一対の鍛造ロ−ル(1
7)，(18)の隙間にてロ−ルの前方から後方に送り込む
（図12）。鍛造ロ−ル(17)，(18)の矢印方向の回転に
て、丸棒状の部分（５）をこみ（６）の長手方向に圧延
して、板状体の部分（19) を形成する( 図７) 。この板
状部分(19)はほぼ７００℃〜８００℃にて半日焼鈍さ
れ、プレスでこみ（６）の形状に切断されて、こみ
（６）が形成される（図８）。これにて包丁の素材作り
が完了する。The round bar portion (5) is heated to 1000 ° C to 110 ° C.
After heating to about 0 ° C and sandwiching the blade (2) with a jig (not shown), the round bar portion (5) is paired with a pair of upper and lower forged rolls (1).
Feed it from the front to the rear of the roll in the gap of 7) and (18) (Fig. 12). By rotating the forged rolls (17) and (18) in the directions of the arrows, the round bar portion (5) is rolled in the longitudinal direction of the dent (6) to form the plate-like portion (19). (Figure 7). This plate-like portion (19) is annealed at about 700 ° C. to 800 ° C. for half a day, and is cut into the shape of the dent (6) by a press to form the dent (6) (FIG. 8). This completes the making of the kitchen knife material.
【００１４】包丁の仕上げは、刀身をほぼ１０５０℃〜
１０７０℃に加熱して、油で急冷して焼入を施し、刀身
とつばをプラスチック製の砥石で研磨する。The knife is finished at about 1050 ° C.
Heat to 1070 ° C., quench with oil to quench, and polish the blade and brim with a plastic whetstone.
【００１５】包丁の素材作りの工程において、丸棒状の
素材（１）を包丁２丁分の長さに取って、型鍛造にて２
丁分の板状部（３），（３）とつば部（４），（４）を
Ｖ字形の折り溝(20)に対して対称的に同時に形成し（図
14）、折り溝にて各包丁毎に分断して、以後前記工程に
従って包丁素材を完了させてもよい。これにより一層作
業性が向上する。In the process of making the material for the kitchen knife, the round bar-shaped material (1) is made into the length of two kitchen knives and the die forging is performed to 2
The plate portions (3) and (3) and the collar portions (4) and (4) of the claws are formed at the same time symmetrically with respect to the V-shaped folding groove (20) (Fig.
14) Alternatively, the kitchen knife material may be cut along the folding groove, and then the kitchen knife material may be completed according to the above steps. This further improves workability.
【００１６】[0016]
【発明の効果】本発明は上記のように、棒状の材（１）
を型鍛造にて刀身用としてほぼ長方形の板状体（３）に
変形し、この板状体（３）をロ−ル鍛造にて刀身の幅方
向と長手方向に順次長方形（９），(12)に圧延して、刀
身形にプレスで打ち抜いて刀身（２）を形成するので、
素材の使用効率が良い。また本発明は棒状素材（１）の
型鍛造の際に、板状体（３）の形成と同時につば（４）
を形成し、つばの後端を切削加工にて環状の溝(15)を形
成してつばの後端(16)を整え、このつばに連らなる棒状
部分（５）をロ−ル鍛造にて長手方向に圧延し、プレス
の切断手段でこみ（６）の寸法に切り落として、こみを
形成するので、刀身（２）とつば（４）の連らなる部分
(21)が折れにくく、かつつば（４）の形成が極めて容易
である。INDUSTRIAL APPLICABILITY As described above, the present invention has a rod-like material (1).
Is transformed into a substantially rectangular plate-like body (3) for a blade by die forging, and this plate-like body (3) is roll-forged to sequentially form a rectangle (9), (in the width direction and the longitudinal direction of the blade). Rolled to 12) and punched into a blade shape with a press to form a blade (2),
Good material usage efficiency. In addition, the present invention, when the rod-shaped material (1) is die-forged, the collar (4) is formed simultaneously with the formation of the plate-shaped body (3).
To form a ring-shaped groove (15) on the rear end of the collar by cutting to adjust the rear end (16) of the collar, and roll-forge the rod-shaped portion (5) connected to this collar. Rolling in the longitudinal direction and cutting it to the size of the dent (6) by the cutting means of the press to form the dent, so the part where the blade (2) and the collar (4) are continuous
The (21) is hard to break, and it is extremely easy to form the stoop (4).
【図１】丸棒状の素材の斜視図である。FIG. 1 is a perspective view of a round bar-shaped material.
【図２】型鍛造による１次的圧延変形の斜視図である。FIG. 2 is a perspective view of primary rolling deformation by die forging.
【図３】ロール鍛造による刀身の幅方向の２次的圧延変
形の斜視図である。FIG. 3 is a perspective view showing a secondary rolling deformation of the blade in the width direction by roll forging.
【図４】ロール鍛造による刀身の長手方向の３次的圧延
変形の斜視図である。 変形の斜視図である。FIG. 4 is a perspective view of a tertiary rolling deformation of the blade in the longitudinal direction by roll forging. It is a perspective view of a modification.
【図５】刀身形に打ち抜かれた斜視図である。FIG. 5 is a perspective view punched into a blade shape.
【図６】つばの後端を環状に切削した状態を示す一部の
斜視図である。FIG. 6 is a partial perspective view showing a state in which the rear end of the collar is cut into a ring shape.
【図７】こみ用の棒状部分をロール鍛造にて長手方向に
圧延した状態を示す斜視図である。FIG. 7 is a perspective view showing a state in which a rod portion for dent is rolled in the longitudinal direction by roll forging.
【図８】こみの圧延部分を打ち抜いてこみを形成した状
態を示す斜視図である。FIG. 8 is a perspective view showing a state in which a rolled portion of the dent is punched to form the dent.
【図９】刀身を幅方向に圧延する鍛造ロールの正面図で
ある。FIG. 9 is a front view of a forging roll that rolls the blade in the width direction.
【図１０】図９に示す鍛造ロールの側面図である。10 is a side view of the forging roll shown in FIG. 9. FIG.
【図１１】刀身を長手方向に圧延する鍛造ロールの側面
図である。FIG. 11 is a side view of a forging roll that rolls the blade in the longitudinal direction.
【図１２】こみを圧延する鍛造ロールの側面図である。FIG. 12 is a side view of a forging roll for rolling dust.
【図１３】つばの後端を環状に切削する状態を示す斜視
図である。FIG. 13 is a perspective view showing a state in which the rear end of the brim is annularly cut.
【図１４】型鍛造にて包丁２丁分の１次的圧延変形の斜
視図である。FIG. 14 is a perspective view of primary rolling deformation of two knives by die forging.
１ 丸棒状の素材 ２ 刀身 ３ 板状体 ４
つば ５ 丸棒状の部分 ６ こみ ７ 鍛造ロ
ール ８ 鍛造ロール ９ 板状の部分 10 鍛造ロール 11 鍛造ロール 12 板状体
14 バイト 15 環状溝 17 鍛造ロール 18
部分1 Round bar material 2 Blade 3 Plate 4
Collar 5 Round bar part 6 Dent 7 Forging roll 8 Forging roll 9 Plate part 10 Forging roll 11 Forging roll 12 Plate
14 Bit 15 Annular groove 17 Forging roll 18
part
Claims (4)
身用としてほぼ長方形の板状体に１次的に変形させ、こ
の１次的変形の部分をロ−ル鍛造にて刀身の幅方向に２
次的に圧延変形させ、この２次的変形部分をロ−ル鍛造
にて刀身の長手方向に３次的に圧延変形させ、この３次
的変形部分を刀身形に打抜く包丁の製造方法。1. A part of a rod-shaped material having a predetermined length is primarily deformed by die forging into a substantially rectangular plate-like body for use in a blade, and the portion of the primary deformation is roll-forged by a blade. 2 in the width direction
A method of manufacturing a knife in which the secondary deformed portion is rolled and then the secondary deformed portion is thirdly rolled and deformed in the longitudinal direction of the blade by roll forging, and the tertiary deformed portion is punched into a blade shape. .
身用としてほぼ長方形の板状体に１次的に変形させると
同時につばを形成し、上記１次的変形の部分をロ−ル鍛
造にて刀身の幅方向に２次的に圧延変形させ、この２次
的変形部分をロ−ル鍛造にて刀身の長手方向に３次的に
圧延変形させ、この３次的変形部分を刀身形に打抜き、
上記つばとこれに連らなるこみ用の棒状部分との間を環
状に切削してつばの後端面を整え、こみ用の棒状の部分
をロール鍛造にてこみの長手方向に圧延し、この圧延部
分をこみの寸法に打ち抜いた包丁の製造方法。2. A rod-shaped material having a predetermined length is partially deformed by die forging into a substantially rectangular plate-shaped body for a blade, and at the same time a collar is formed, and the portion of the primary deformation is rolled. -By roll forging, the blade is secondarily rolled and deformed in the width direction, and this secondary deformed portion is roll-forged to be thirdly rolled and deformed in the longitudinal direction of the blade. Punched into a blade shape,
The rear end face of the collar is trimmed by annularly cutting between the brim and the rod-shaped portion for the dent connected to the collar, and the rod-shaped portion for the dent is rolled in the longitudinal direction of the dent by roll forging, and this rolling is performed. A method of manufacturing a kitchen knife, in which a part is punched out to the size of a dent.
を有し、この棒状素材による各包丁の刀身用のほぼ長方
形の板状体の１次的変形とこれらの板状体相互の接続部
の折り溝の形成が鍛造型で同時になされ、上記折り溝に
て各板状体を分離する請求項１記載の包丁の製造方法。3. The rod-shaped material according to claim 1 has a length of two knives, and a primary deformation of the substantially rectangular plate-shaped body for the blade of each kitchen knife by these rod-shaped materials and these plate-shaped bodies. 2. The method for manufacturing a kitchen knife according to claim 1, wherein the folding grooves of the connecting portions are formed simultaneously by a forging die, and the plate-shaped bodies are separated by the folding grooves.
を有し、この棒状素材による各包丁の刀身用のほぼ長方
形の板状体の１次的変形と、これらの板状体相互の接続
部の折り溝の形成と、上記板状体に連らなるつばの形成
が鍛造型で同時になされ上記折り溝にて各板状体を分離
する請求項２記載の包丁の製造方法。4. The rod-shaped material according to claim 2 has a length of two kitchen knives, and the primary deformation of the substantially rectangular plate-like body for the blade of each kitchen knife by these rod-shaped materials and these plate-shaped materials. 3. The method of manufacturing a kitchen knife according to claim 2, wherein the forming of the folding groove at the connecting portion between the bodies and the forming of the brim connected to the plate-shaped body are simultaneously performed by a forging die, and the plate-shaped bodies are separated by the folding groove. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13216191A JPH0753326B2 (en) | 1991-05-09 | 1991-05-09 | Kitchen knife manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13216191A JPH0753326B2 (en) | 1991-05-09 | 1991-05-09 | Kitchen knife manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH068064A JPH068064A (en) | 1994-01-18 |
| JPH0753326B2 true JPH0753326B2 (en) | 1995-06-07 |
Family
ID=15074795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13216191A Expired - Lifetime JPH0753326B2 (en) | 1991-05-09 | 1991-05-09 | Kitchen knife manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0753326B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170165850A1 (en) * | 2013-08-12 | 2017-06-15 | Peter Rigas | Control Kitchen Cutlery |
| CN111185729A (en) * | 2020-01-21 | 2020-05-22 | 中车齐齐哈尔车辆有限公司 | Forging process method for middle pull rod |
-
1991
- 1991-05-09 JP JP13216191A patent/JPH0753326B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH068064A (en) | 1994-01-18 |
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