JPH07213B2 - Molding method for multi-threaded V-ply - Google Patents
Molding method for multi-threaded V-plyInfo
- Publication number
- JPH07213B2 JPH07213B2 JP60224850A JP22485085A JPH07213B2 JP H07213 B2 JPH07213 B2 JP H07213B2 JP 60224850 A JP60224850 A JP 60224850A JP 22485085 A JP22485085 A JP 22485085A JP H07213 B2 JPH07213 B2 JP H07213B2
- Authority
- JP
- Japan
- Prior art keywords
- wall portion
- cup body
- peripheral wall
- pulley
- groove
- 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 - Fee Related
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
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/02—Making articles shaped as bodies of revolution discs; disc wheels
- B21H1/04—Making articles shaped as bodies of revolution discs; disc wheels with rim, e.g. railways wheels or pulleys
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、多条Ｖ溝を周壁部に備え、かつその両側に側
壁部を有してなる多条Ｖプーリの成形方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for forming a multi-strand V pulley having a multi-strand V groove in a peripheral wall portion and side wall portions on both sides thereof.
一般に多条Ｖプーリは、その周壁部に溝深さの浅い多条
Ｖ溝を備えたものであって、一般のプーリに比べて、ベ
ルトのスリップ現象等を有効に防止できるものである。Generally, a multi-strand V pulley is provided with a multi-strand V groove having a shallow groove depth on its peripheral wall portion, and can effectively prevent a belt slip phenomenon and the like as compared with a general pulley.
従来、この種の多条Ｖプーリとしては、例えば、第７図
に示すものが知られている（特開昭57-88929号公報参
照）。この多条ＶプーリP1は、まず一枚の板状素材をプ
レス加工して略カップ状に成形し、このカップ体の周壁
部２の上下端部に側壁部3,4を全周に亘って形成し、次
に周壁部２の中間部分に多条突起を備えた転造ローラに
よって多条Ｖ溝５を形成してなるものである。Conventionally, as this type of multi-strand V pulley, for example, the one shown in FIG. 7 is known (see Japanese Patent Laid-Open No. 57-88929). The multi-thread V-pulley P1 is formed by pressing a single plate-shaped material into a substantially cup shape, and the side wall portions 3 and 4 are formed on the upper and lower end portions of the peripheral wall portion 2 of the cup body over the entire circumference. Then, the multi-row V groove 5 is formed by a rolling roller provided with multi-row projections in the intermediate portion of the peripheral wall portion 2.
しかしながら、このような従来の多条ＶプーリP1にあっ
ては、特に周壁部２の下端部に形成される側壁部４は、
素材の折り曲げ成形による２重構造となっていたため
に、折曲部６に加工硬化が発生し易く、高負荷にて回転
させた場合等に折曲部６に亀裂が起きるおそれがあっ
た。また、多条ＶプーリP1に表面処理を施す場合など
に、折曲部６の裏側の隙間に処理液が滞留して発錆の原
因ともなっていた。However, in such a conventional multi-thread V pulley P1, in particular, the side wall portion 4 formed at the lower end portion of the peripheral wall portion 2 is
Since the double structure is formed by bending the material, work hardening is likely to occur in the bent portion 6, and cracks may occur in the bent portion 6 when rotated at a high load. Further, when the surface treatment is applied to the multi-strand V pulley P1, the treatment liquid remains in the gap on the back side of the bent portion 6 and causes rusting.
本発明は、上述の観点に立ってなされたものであり、そ
の目的とするところは側壁部に亀裂等が生ずることはな
く、また発錆も防止し得るような多条Ｖプーリの成形方
法を提供するものである。The present invention has been made from the above viewpoint, and an object of the present invention is to provide a method for forming a multi-thread V-pulley that does not cause cracks or the like in the side wall portion and can prevent rusting. It is provided.
上記目的達成のために、本発明は、多条Ｖプーリの成形
方法として、一枚の板状素材をプレス加工してカップ体
（７）を形成し、一条の突起を周縁に備えたすり割りロ
ーラ（９）を前記突起が前記カップ体（７）の底壁部
（15）に位置するようにして回転させながら前記カップ
体（７）の周壁部（８）に押し付け、前記底壁部（15）
を径方向にすり割り、このすり割られた底壁部（15）の
角部を一方の側壁部（11）に形成すると同時に、前記カ
ップ体（７）の周壁部（８）をローラ成形して前記周壁
部（８）の端部に他方の側壁部（10）を形成し、次いで
前記カップ体（７）の周壁部（８）に多条Ｖ溝（26）を
ローラ成形することを特徴とする。In order to achieve the above object, the present invention provides a method for forming a multi-thread V-pulley, in which a plate-shaped material is pressed to form a cup body (7), and a slot provided with a single projection on the periphery. The roller (9) is pressed against the peripheral wall portion (8) of the cup body (7) while rotating so that the protrusion is located on the bottom wall portion (15) of the cup body (7), 15)
In the radial direction, and the corner portion of the bottom wall portion (15) thus slit is formed on one side wall portion (11), and at the same time, the peripheral wall portion (8) of the cup body (7) is roller-formed. The other side wall portion (10) is formed at the end of the peripheral wall portion (8), and then the multiple V groove (26) is roller-formed on the peripheral wall portion (8) of the cup body (7). And
このような構成により、板条素材からカップ体（７）へ
の形成工程と、側壁部と多条Ｖ溝の転造工程に分け、側
壁部に折り曲げ部を形成させることなく多条Ｖプーリを
形成させることができるようにして、多条Ｖプーリの肉
厚を均一化し、加工作業を効率化させる。With such a configuration, the step of forming the plate body into the cup body (7) and the step of rolling the side wall and the multiple V groove can be divided into a multi-line V pulley without forming a bent portion on the side wall. By making it possible to form the multi-strand V pulley, the wall thickness of the multi-thread V pulley is made uniform, and the working operation is made efficient.
以下添付図面に基づいて本発明の実施例を詳細に説明す
る。Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
第１図乃至第５図に示す実施例において、多条Ｖプーリ
P2の成形方法は、先ず第２図に示すようにカップ体７の
周壁部８の上下端部にすり割りローラ９によって側壁部
10,11を形成し、次いで第５図に示すように、周壁部８
に多条Ｖ溝26を形成するようにしてある。In the embodiment shown in FIGS. 1 to 5, a multi-thread V pulley
First, as shown in FIG. 2, the P2 is formed by using the slitting roller 9 on the upper and lower end portions of the peripheral wall portion 8 of the cup body 7 to form side wall portions.
10 and 11 are formed, and then, as shown in FIG. 5, the peripheral wall portion 8
The multi-strand V groove 26 is formed on the inner surface.
この実施例において、上記カップ体７は、一枚の均等肉
厚の円板状素材をプレス加工により略カップ状に成形し
たものである。このように成形されたカップ体７は、先
ず第１図に示すように、固定治具13にセットされ、次に
反対側から可動治具14によって底壁部15がクランプされ
る。このとき、カップ体７の周壁部８は、固定治具13と
可動治具14との間に形成される略台形状の凹溝16内に配
置され、しかもこの周壁部８と凹溝16の底面17の間には
十分な隙間21が形成されている。尚、凹溝16の底面17お
よび斜側面18,19は、成形時におけるローラの受け面と
なるものである。次いで、第２図に示すように、上記カ
ップ体７の周壁部８には一条の突起20を備えたすり割り
ローラ９が押し付けられる。このすり割りローラ９の突
起20は、このローラ９の外周面の縁に設定され、例え
ば、押し付けたときに底壁部15の厚さの略中央部付近に
位置するように設けられるのが望ましい。カップ体７の
回転と共に、すり割りローラ９も回転させながら押し付
けることにより、底壁部15の外周面に突起20が入り込
み、底壁部15中央部分を径方向にすり割る。そして、第
２図に示すように、カップ体７の周壁部８が凹溝16の底
面17に接触する位置まですり割りローラ９でＶ字状にす
り割る。このとき、すり割られた底壁部15の角部は、凹
溝16の斜側面19に沿って多条ＶプーリP2の一方の側壁部
11に形成される。尚、第１図に示すように凹溝16の底面
17と周壁部８との間に隙間21が形成されていることか
ら、その分、すり割りが大きくなる。上記すり割りロー
ラ９によって、カップ体７の周壁部８もローラ成形さ
れ、凹溝16の斜側面18に沿って多条ＶプーリP2の他方の
側壁部10も同時に形成される。In this embodiment, the cup body 7 is formed by pressing a single disk-shaped material having a uniform thickness into a substantially cup shape. The cup body 7 thus formed is first set on the fixing jig 13 as shown in FIG. 1, and then the bottom wall portion 15 is clamped by the movable jig 14 from the opposite side. At this time, the peripheral wall portion 8 of the cup body 7 is disposed in the substantially trapezoidal concave groove 16 formed between the fixed jig 13 and the movable jig 14, and moreover, the peripheral wall portion 8 and the concave groove 16 are formed. A sufficient gap 21 is formed between the bottom surfaces 17. The bottom surface 17 and the inclined side surfaces 18 and 19 of the groove 16 serve as a roller receiving surface during molding. Next, as shown in FIG. 2, the slitting roller 9 having a single projection 20 is pressed against the peripheral wall portion 8 of the cup body 7. The projection 20 of the slitting roller 9 is set on the edge of the outer peripheral surface of the roller 9, and is preferably provided so as to be located, for example, near the central portion of the thickness of the bottom wall portion 15 when pressed. . As the cup body 7 rotates and the pressing roller 9 also presses while rotating, the protrusions 20 enter the outer peripheral surface of the bottom wall portion 15 and the central portion of the bottom wall portion 15 is ground in the radial direction. Then, as shown in FIG. 2, the peripheral wall portion 8 of the cup body 7 is slit into a V-shape by a slitting roller 9 to a position where it contacts the bottom surface 17 of the groove 16. At this time, the corner portion of the bottom wall portion 15 that has been slit is formed along the inclined side surface 19 of the concave groove 16 on one side wall portion of the multiple V pulley P2.
Formed in 11. The bottom surface of the groove 16 as shown in FIG.
Since the gap 21 is formed between the peripheral wall portion 17 and the peripheral wall portion 8, the slot becomes larger accordingly. The peripheral wall portion 8 of the cup body 7 is also roller-molded by the slitting roller 9, and the other side wall portion 10 of the multiple V pulley P2 is also formed at the same time along the inclined side surface 18 of the concave groove 16.
次いで、第３図に示すように、カップ体７の周壁部８
に、多条の突起22を備えた予備成形ローラ23を押し付
け、予備的な多条Ｖ溝24を成形する。尚、この時、成形
される多条Ｖ溝24の山部と谷部との関係は、最終製品に
おける多条Ｖ溝のそれに一致する。予備成形終了後、第
４図に示すように、本成形ローラ25を周壁部８に押し付
け、多条Ｖ溝26を仕上げ成形すると共に、側壁部10,11
も最終的に仕上げ、多条ＶプーリP2を完成させる。Next, as shown in FIG. 3, the peripheral wall portion 8 of the cup body 7
Then, the preforming roller 23 having the multiple projections 22 is pressed to form a preliminary multiple V groove 24. At this time, the relationship between the peaks and the valleys of the multi-strand V groove 24 to be formed matches that of the multi-strand V groove in the final product. After completion of the preforming, as shown in FIG. 4, the main forming roller 25 is pressed against the peripheral wall portion 8 to finish-form the multi-strip V groove 26, and the side wall portions 10 and 11 are formed.
Finally, the finishing is completed to complete the multi-thread V pulley P2.
第５図は、上述の成形方法によって形成された多条Ｖプ
ーリP2であり、その周壁部８に多条Ｖ溝26を備えると共
に、この多条Ｖ溝26の両側には、すり割りによって成形
された一方の側壁部11と、これと同時成形の他方の側壁
部10が形成される。FIG. 5 shows a multi-strand V pulley P2 formed by the above-mentioned molding method, in which the peripheral wall portion 8 is provided with a multi-strand V groove 26, and both sides of this multi-strand V groove 26 are molded by slitting. One side wall portion 11 thus formed and the other side wall portion 10 simultaneously formed therewith are formed.
このような多条ＶプーリP2の成形方法にあっては、プレ
ス加工によってカップ体７を成形した後は、すり割りも
含めてすべて転造ローラによるものであるから、一貫作
業による効率化を図ることができる他、多条Ｖ溝26の肉
厚のバラツキも極めて少ないものとなった。また、本成
形方法によれば、第６図に示すような多段の多条Ｖプー
リP3も上記成形方法を一段ずつ順次行なうことで、各段
の多条Ｖ溝27,28および側壁部29,30を容易に成形するこ
とができる。In such a method for forming the multi-strand V pulley P2, after the cup body 7 is formed by press working, all the rolling rollers, including the slits, are formed by rolling rollers. In addition to the above, the variation in the wall thickness of the multiple V groove 26 is also extremely small. Further, according to the present molding method, the multi-step V-pulley P3 having multiple stages as shown in FIG. 6 is also sequentially subjected to the above-described molding method step by step, so that the multi-step V grooves 27 and 28 and the side wall portions 29 of each step are formed. 30 can be easily molded.
以上説明したように本発明に係る多条Ｖプーリの成形方
法によれば、すり割られた底壁部（15）の角部を一方の
側壁部（11）に形成すると同時に、周壁部（８）をロー
ラ成形して周壁部（８）の端部に他方の側壁部（11）を
形成したから、従来のように側壁部に折り曲げ部が形成
されることがなくなる。As described above, according to the method for forming a multi-thread V pulley according to the present invention, the corner portion of the bottom wall portion (15) that is slit is formed on one side wall portion (11), and at the same time, the peripheral wall portion (8) is formed. 2) is roller-formed to form the other side wall portion (11) at the end of the peripheral wall portion (8), there is no need to form a bent portion on the side wall portion as in the conventional case.
これにより、側壁部に亀裂等が生ずることがなく、発錆
も防止し得る耐久性のよい多条Ｖプーリを得ることがで
きる。As a result, it is possible to obtain a durable multi-strand V pulley which is free from cracks and the like in the side wall portion and can prevent rusting.
また、多条Ｖプーリの成形方法として、プレス加工によ
ってカップ体を成形した後は、すり割りも含めて、すべ
て転造ローラによるものであるから、一貫作業による効
率化を図ることができ、さらに多条Ｖ溝の肉厚のバラツ
キも極めて少なくすることができる。In addition, as a method for forming the multi-thread V pulley, after the cup body is formed by press working, all the rolling rollers, including the slits, are made by rolling rollers, so that it is possible to improve efficiency by integrated work. The variation in wall thickness of the multi-strand V groove can be extremely reduced.
第１図はカップ体をクランプした時の状態を示す半截断
面図、第２図はすり割り成形時の半截断面図、第３図は
予備成形時の半截断面図、第４図は本成形時の半截断面
図、第５図は本発明に係る成形手段による多条Ｖプーリ
の半截断面図、第６図は多条Ｖプーリの他の例を示す半
截断面図、第７図は従来の多条Ｖプーリの一例を示す半
截断面図である。 ７……カップ体 ８……周壁部 ９……すり割りローラ 10,11……側壁部 15……底壁部 26……多条Ｖ溝Fig. 1 is a half-cut sectional view showing the state when the cup body is clamped, Fig. 2 is a half-cut sectional view at the time of slot forming, Fig. 3 is a half-cut sectional view at the time of preforming, and Fig. 4 is at the time of main forming. 5 is a sectional view of a multi-way V pulley formed by the molding means according to the present invention, FIG. 6 is a sectional view showing another example of the multi-way V pulley, and FIG. It is a half cross-sectional view showing an example of a strip V pulley. 7 …… Cup body 8 …… Surrounding wall 9 …… Slitting roller 10,11 …… Side wall 15 …… Bottom wall 26 …… Multi-row V groove
Claims (1)
（７）を形成し、 一条の突起を周縁に備えたすり割りローラ（９）を、前
記突起が前記カップ体（７）の底壁部（15）に位置する
ようにして、回転させながら前記カップ体（７）の周壁
部（８）に押し付け、 前記底壁部（15）を径方向にすり割り、このすり割られ
た底壁部（15）の角部を一方の側壁部（11）に形成する
と同時に、前記カップ体（７）の周壁部（８）をローラ
成形して前記周壁部（８）の端部に他方の側壁部（10）
を形成し、 次いで前記カップ体（７）の周壁部（８）に多条Ｖ溝
（26）をローラ成形する ことを特徴とする多条Ｖプーリの成形方法。1. A plate body (7) is formed by pressing one plate-shaped material, and a slitting roller (9) having a single projection on the periphery thereof is provided, and the projection is the cup body (7). Is pressed against the peripheral wall portion (8) of the cup body (7) while being rotated so as to be positioned on the bottom wall portion (15) of the cup body (7), and the bottom wall portion (15) is slid in the radial direction. The corner portion of the bottom wall portion (15) is formed on one side wall portion (11), and at the same time, the peripheral wall portion (8) of the cup body (7) is roller-molded to the end portion of the peripheral wall portion (8). The other side wall (10)
And then forming a multi-strand V groove (26) on the peripheral wall portion (8) of the cup body (7) by roller molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60224850A JPH07213B2 (en) | 1985-10-11 | 1985-10-11 | Molding method for multi-threaded V-ply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60224850A JPH07213B2 (en) | 1985-10-11 | 1985-10-11 | Molding method for multi-threaded V-ply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6284845A JPS6284845A (en) | 1987-04-18 |
| JPH07213B2 true JPH07213B2 (en) | 1995-01-11 |
Family
ID=16820142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60224850A Expired - Fee Related JPH07213B2 (en) | 1985-10-11 | 1985-10-11 | Molding method for multi-threaded V-ply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07213B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH081242B2 (en) * | 1987-07-24 | 1996-01-10 | 富士機工株式会社 | Pulley manufacturing method |
| WO1991000155A1 (en) * | 1989-06-28 | 1991-01-10 | Kabushiki Kaisha Kanemitsu | Method of manufacturing sheet metal poly-v-groove pulleys and products obtained thereby |
| DE3991700T1 (en) * | 1989-07-11 | 1991-07-18 | Kanemitsu Akashi Kk | METHOD FOR PRODUCING AN EDGE ON MULTIPLE V-BELT DISCS AND PRODUCTS PRODUCED BY THIS METHOD |
| WO1994009928A1 (en) * | 1992-11-02 | 1994-05-11 | Kabushiki Kaisha Kanemitsu | Method of manufacturing poly-v-grooved pulley of sheet metal |
| US5336812A (en) * | 1993-11-12 | 1994-08-09 | Aristech Chemical Corporation | Method of making 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane |
| JP2700717B2 (en) * | 1995-01-27 | 1998-01-21 | 株式会社カネミツ | Method of manufacturing sheet metal poly-V groove pulley and sheet metal poly-V groove pulley |
| US6012318A (en) * | 1996-08-05 | 2000-01-11 | Kabushiki Kaisha Kanemitsu | Method of producing a sheet metal pulley for a V belt |
| US6536253B1 (en) * | 2000-03-10 | 2003-03-25 | Kanemitsu Corporation | Slotting method, slotting device, and method of manufacturing metal sheet brake shoe by slotting |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5772738A (en) * | 1980-10-24 | 1982-05-07 | Nippon Isueede Kk | Formation of v-groove for pulley and the like |
| JPS58163538A (en) * | 1982-03-23 | 1983-09-28 | Kanemitsu Doukou Yousetsushiyo:Goushi | Manufacture of thin-plate poly v-pulley |
| FR2553851B1 (en) * | 1983-10-21 | 1988-10-14 | Aubecq Auxi Sa | METHOD FOR MANUFACTURING A PULLEY WITH MULTIPLE V-GROOPS AND PULLEY THUS PRODUCED |
| JPS60121025A (en) * | 1983-12-02 | 1985-06-28 | Nippon Spindle Mfg Co Ltd | Manufacture of multigroove v-pulley |
-
1985
- 1985-10-11 JP JP60224850A patent/JPH07213B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6284845A (en) | 1987-04-18 |
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