JPH025654B2 - - Google Patents
Info
- Publication number
- JPH025654B2 JPH025654B2 JP16389286A JP16389286A JPH025654B2 JP H025654 B2 JPH025654 B2 JP H025654B2 JP 16389286 A JP16389286 A JP 16389286A JP 16389286 A JP16389286 A JP 16389286A JP H025654 B2 JPH025654 B2 JP H025654B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- roller
- ultra
- aluminum
- lightweight
- 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
Links
- 229910052782 aluminium Inorganic materials 0.000 claims description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明のローラは、電子複写機、フアクシミ
リ、印刷機特に大型印刷機または製紙機械などの
紙送り用あるいは洗いロール、ハケロール、接
着、合板ロール等に使用するシヤフト付き超軽量
ローラに関する。Detailed Description of the Invention "Industrial Application Fields" The roller of the present invention is suitable for use in electronic copying machines, facsimile machines, printing machines, especially large printing machines, or paper-feeding machines, washing rolls, brush rolls, adhesive rolls, plywood rolls, etc. This article relates to an ultra-lightweight roller with a shaft used for such applications.
「従来の技術」
従来、紙送り用ローラは鋳鉄、鋳鋼製ローラの
外周にゴムあるいは合成樹脂層が形成されてい
る。ところが、これら紙送りローラは原材料が廉
く、かつ切削加工しやすいので、広く利用されて
いたが、比重が大きいため、機械装置全体の重量
がかさむと共に回転数の上昇に比例してベアリン
グの損傷がはげしいなどの欠点を有する。"Prior Art" Conventionally, paper feed rollers have been made of cast iron or cast steel, with a rubber or synthetic resin layer formed around the outer periphery. However, these paper feed rollers were widely used because their raw materials were inexpensive and easy to cut, but their high specific gravity increased the weight of the entire mechanical device and caused damage to the bearings in proportion to the increase in rotational speed. It has disadvantages such as being harsh.
かゝる欠点を解消すべく鋳鉄、鋳鋼材に代えて
アルミニウム材を用いて一体成形したシヤフト付
きローラが開発され、現在にいたつている。 In order to overcome these drawbacks, rollers with shafts integrally formed using aluminum instead of cast iron or cast steel have been developed and are still in use today.
「発明が解決しようとする問題点」
ところが、上記アルミニウム材からなるローラ
はアルミニウム棒材を所要寸法に切断したのち、
該棒材に直接シヤフトを旋削形成した後に使用さ
れているが、該シヤフトはアルミニウムのため、
短期間にて摩耗する問題点があつた、該問題点に
鑑み、純アルミニウム溶湯に発泡剤を投入するこ
とにより発泡アルミニウムが形成されることがよ
く知られている。（特公昭36−20351号、特公昭39
−803号、特公昭36−19459号および特公昭42−
20602号公報参照）
超軽量発泡アルミニウムの比重は実にアルミニ
ウムの１／10であることに気付きこの超軽量アル
ミニウムの利点を生かすと同時にシヤフトには耐
摩耗性のすぐれた材料を用いることが本発明の技
術的課題である。``Problems to be Solved by the Invention'' However, the roller made of the aluminum material cannot be used after cutting the aluminum bar into the required dimensions.
It is used after forming a shaft directly on the bar material, but since the shaft is made of aluminum,
In view of the problem of wear over a short period of time, it is well known that aluminum foam is formed by adding a foaming agent to molten pure aluminum. (Special Public Interest No. 36-20351, Special Public Interest No. 39 Showa 39)
−803, Special Publication No. 36-19459 and Special Publication No. 42-
(Refer to Publication No. 20602) It was discovered that the specific gravity of ultra-light foamed aluminum is actually 1/10 that of aluminum.The present invention aims to take advantage of the advantages of ultra-light aluminum and at the same time use a material with excellent wear resistance for the shaft. This is a technical issue.
「問題点を解決するための手段」
上記技術的課題を解決するために、シヤフトに
はスチールまたは該スチールと同等の耐摩耗性を
有する材料からなり、そしてこれらシヤフトの外
周には、多数の気泡を形成せしめた発泡アルミニ
ウムからなるローラが一体成形されてなるシヤフ
ト付き超軽量ローラを提供することにある。"Means for Solving the Problems" In order to solve the above technical problems, the shafts are made of steel or a material with wear resistance equivalent to steel, and the outer periphery of these shafts is made of a large number of air bubbles. To provide an ultra-lightweight roller with a shaft formed by integrally molding a roller made of aluminum foam.
「作用」
スチールシヤフトの外周に超軽量発泡アルミニ
ウムからローラが形成されているので、機械装置
全体の軽量化に役立つと同時にシヤフトには耐摩
耗性のすぐれたスチールまたは同等以上の材料を
用いているので、長期間の使用に十分耐えること
ができる。``Function'' The rollers are made of ultra-light foamed aluminum around the outer circumference of the steel shaft, which helps reduce the weight of the entire machine, and at the same time the shaft is made of highly wear-resistant steel or a material of the same or higher quality. Therefore, it can withstand long-term use.
また、シヤフトとローラが一体成形であるから
旋削加工、孔明け加工は必要とせず、かつシヤフ
トとローラ間には半径方向に凹凸またはリブが複
数形成されているので、曲げ応力および剪断応力
に対しても十分耐えることができる。 In addition, since the shaft and rollers are integrally molded, no turning or drilling is required, and multiple unevenness or ribs are formed in the radial direction between the shaft and rollers, so they are resistant to bending stress and shear stress. I can withstand it well.
また、ローラは発泡アルミニウムであるから、
吸音効果が大である。 Also, since the rollers are made of foamed aluminum,
It has a great sound absorption effect.
「実施例」
本発明シヤフト付き超軽量ローラは次の各工程
をへて製作される。``Example'' The ultra-lightweight roller with a shaft of the present invention is manufactured through the following steps.
前記シヤフト付き超軽量ローラ１００のシヤフ
ト１０１の直径ｄおよびロール１０２の直径Ｄ長
さＬに一致する上金型２０１と下金型２０１には
ロール側の第１キヤビテイ２０１１とシヤフト側
の第２キヤビテイ２０１２がそれぞれ形成され
る。 The upper mold 201 and the lower mold 201, which correspond to the diameter d of the shaft 101 and the diameter D and length L of the roll 102 of the ultra-light roller with shaft 100, have a first cavity 2011 on the roll side and a second cavity on the shaft side. 2012 are formed respectively.
前記上金型２０１所定温度が維持できるように
断熱性のすぐれたものを用い、金型の内面におけ
る放熱が徐々に行われるように構成されており、
その上面には湯口２０１３が形成されている。 The upper mold 201 is made of a material with excellent heat insulation so that a predetermined temperature can be maintained, and is configured so that heat is gradually radiated from the inner surface of the mold.
A sprue 2013 is formed on its upper surface.
予め、上下金型２００に芯金としてスチールシ
ヤフト１０１を所定位置にインサートする第１工
程と、次に純アルミインゴツト１を溶解炉２内に
入れた後に約700℃前後で溶解する第２工程と、
次に該保持炉３の溶湯アルミニウムに増粘剤とし
てケーシング７内の金属カルシウムを前記インゴ
ツト１の量に比例して添加すると共にモータ８に
て駆動される撹拌羽根９により所要時間撹拌せし
めて、前記金属カルシウムを分散させる第３工程
と、さらに次に混合室６内の溶湯アルミを前記イ
ンゴツト１の量に比例して第２ケーシング７１内
水素チタンを投入すると共にモータ８１により駆
動される撹拌羽根９１をもつてスピーデイにし
て、かつ、均一に撹拌して発泡効果を高める第４
工程と、次に該混合室６内の溶湯アルミをローラ
コンベアまたはレール１０上の前記金型２００の
湯口２０１３より注湯する第５工程と、最後に該
金型内の溶湯アルミの冷却固化をまつて金型より
シヤフト付き超軽量ローラを取出す第６工程から
なる。 The first step is to insert the steel shaft 101 as a core into the upper and lower molds 200 at a predetermined position, and then the second step is to put the pure aluminum ingot 1 into the melting furnace 2 and then melt it at around 700°C. and,
Next, metallic calcium in the casing 7 is added as a thickener to the molten aluminum in the holding furnace 3 in proportion to the amount of the ingot 1, and the mixture is stirred for a required period of time by a stirring blade 9 driven by a motor 8. A third step of dispersing the metallic calcium, and then adding titanium hydrogen to the molten aluminum in the mixing chamber 6 in proportion to the amount of the ingot 1 in the second casing 71, and a stirring blade driven by a motor 81. 91 for speedy stirring and uniform stirring to enhance the foaming effect.
step, then a fifth step of pouring the molten aluminum in the mixing chamber 6 through the sprue 2013 of the mold 200 on the roller conveyor or rail 10, and finally cooling and solidifying the molten aluminum in the mold. The sixth step consists of taking out an ultra-lightweight roller with a shaft from the mold.
該金型より取出したシヤフト付き超軽量ローラ
は第３図に示す如き芯金のスチールシヤフト１０
１の外周に発泡アルミのローラ１０２が一体成形
される。 The ultra-lightweight roller with shaft taken out from the mold has a steel shaft 10 with a core metal as shown in Fig. 3.
A foamed aluminum roller 102 is integrally molded on the outer periphery of the roller 1.
「発明の効果」
発泡アルミのローラはアルミニウムの薄い膜に
より構成された気泡の集合体にして、その比重は
わずか0.2〜0.3で、原材料のアルミニウム１／10
であり勿論鉄の１／30である。``Effects of the invention'' Foamed aluminum rollers are made of a collection of air bubbles made up of a thin film of aluminum, and their specific gravity is only 0.2 to 0.3, which is 1/10th the aluminum of the raw material.
Of course, it is 1/30 of iron.
しかも、十分の強度を有する剛体であるから、
電子複写機、フアクシミリなどの紙送りローラと
してそのまゝ使用するか、必要に応じてその外周
にゴム合成樹脂層を形成することも勿論可能であ
る。 Moreover, since it is a rigid body with sufficient strength,
Of course, it is also possible to use it as it is as a paper feed roller for electronic copying machines, facsimile machines, etc., or to form a rubber synthetic resin layer on its outer periphery if necessary.
第４図は本発明の他の実施例で、上記実施例と
異なる点はスチールシヤフト１０１の外周半径方
向にリブ１０１１…を複数個形成したものであ
る。 FIG. 4 shows another embodiment of the present invention, which differs from the above embodiment in that a plurality of ribs 1011 are formed in the radial direction of the outer circumference of the steel shaft 101.
これを芯金として使用すると、超軽量ローラの
中央部あるいは左右などに負荷が作用した場合で
も十分耐えられる。 When this is used as a core metal, it can withstand loads even if a load is applied to the center or left and right sides of an ultra-light roller.
その他の効果は前実施例と同一である。 Other effects are the same as in the previous embodiment.
また、真直ローラに代えて金型に所定間隔をお
いてフランジが一体鋳造できるように凹部が形成
されている。 Further, in place of the straight roller, recesses are formed in the mold so that flanges can be integrally cast at predetermined intervals.
第１図は本発明シヤフト付き超軽量ローラを製
作するに使用する金型にシヤフトをインサートし
た状態を示す斜視図、第２図イは上金型、第２図
ロは下金型の斜視図、第３図はシヤフト付き超軽
量ローラの斜視図、第４図は本発明のシヤフトの
他の実施例を示すリブ付きシヤフトの斜視図、第
５図は本発明のシヤフト付き超軽量ローラの製造
装置の一例を示す概略説明図である。
符号の説明 １０１：シヤフト、１００：ロー
ラ、１０１１：リブ、２０１：上・下金型。
Figure 1 is a perspective view showing the shaft inserted into the mold used to manufacture the ultra-lightweight roller with shaft of the present invention, Figure 2 A is a perspective view of the upper mold, and Figure 2 B is a perspective view of the lower mold. , FIG. 3 is a perspective view of an ultra-light roller with a shaft, FIG. 4 is a perspective view of a shaft with ribs showing another embodiment of the shaft of the present invention, and FIG. 5 is a diagram showing the manufacture of an ultra-light roller with a shaft of the present invention. It is a schematic explanatory diagram showing an example of a device. Explanation of symbols 101: Shaft, 100: Roller, 1011: Rib, 201: Upper and lower molds.
Claims (1)
を形成せしめた発泡アルミニウムからなるローラ
を一体成形してなることを特徴とするシヤフト付
き超軽量ローラ。 ２ 上記シヤフトがローラ内に連続あるいは非連
続であることを特徴とする特許請求の範囲第１項
記載のシヤフト付き超軽量ローラ。 ３ 上記ローラ内のシヤフトはスチールまたは該
スチールと同等の耐摩耗性を有する材料からな
り、そしてこれらシヤフトには滑り止めの凹凸ま
たは半径方向に複数のリブが形成されていること
を特徴とする特許請求の範囲第１項または第２項
記載のシヤフト付き超軽量ローラ。 ４ 上記ローラはその外周に所要間隔をおいて複
数のフランジが形成されていることを特徴とする
特許請求の範囲第１項または第２項または第３項
記載のシヤフト付き超軽量ローラ。[Scope of Claims] 1. An ultra-lightweight roller with a shaft, characterized by integrally molding a shaft and a roller made of foamed aluminum with a large number of bubbles formed around the outer periphery of the shaft. 2. The ultra-lightweight roller with a shaft according to claim 1, wherein the shaft is continuous or discontinuous within the roller. 3. A patent characterized in that the shafts in the rollers are made of steel or a material with wear resistance equivalent to that of steel, and these shafts are formed with anti-slip irregularities or a plurality of ribs in the radial direction. An ultra-lightweight roller with a shaft according to claim 1 or 2. 4. The ultra-lightweight roller with a shaft according to claim 1, 2, or 3, wherein the roller has a plurality of flanges formed at required intervals on its outer periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16389286A JPS6322460A (en) | 1986-07-14 | 1986-07-14 | Extremely light roller with shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16389286A JPS6322460A (en) | 1986-07-14 | 1986-07-14 | Extremely light roller with shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6322460A JPS6322460A (en) | 1988-01-29 |
| JPH025654B2 true JPH025654B2 (en) | 1990-02-05 |
Family
ID=15782785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16389286A Granted JPS6322460A (en) | 1986-07-14 | 1986-07-14 | Extremely light roller with shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6322460A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0499461U (en) * | 1991-01-22 | 1992-08-27 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19811612C1 (en) * | 1998-03-17 | 1999-02-25 | Siemens Ag | Portal elements for positioning and mounting systems |
| JP4979801B2 (en) * | 2003-06-25 | 2012-07-18 | 日本精工株式会社 | Worm speed reducer and electric power steering device |
| CN107215038A (en) * | 2017-06-22 | 2017-09-29 | 合肥汇之新机械科技有限公司 | A kind of high metallic article of wearability |
-
1986
- 1986-07-14 JP JP16389286A patent/JPS6322460A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0499461U (en) * | 1991-01-22 | 1992-08-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6322460A (en) | 1988-01-29 |
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