JPH0256350A - Paper feed roller - Google Patents

Paper feed roller

Info

Publication number
JPH0256350A
JPH0256350A JP20658788A JP20658788A JPH0256350A JP H0256350 A JPH0256350 A JP H0256350A JP 20658788 A JP20658788 A JP 20658788A JP 20658788 A JP20658788 A JP 20658788A JP H0256350 A JPH0256350 A JP H0256350A
Authority
JP
Japan
Prior art keywords
corrosion
roller
corrosion resistance
metal
metal alloy
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
Application number
JP20658788A
Other languages
Japanese (ja)
Other versions
JPH0794298B2 (en
Inventor
Hiroshi Takahashi
博 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Piolax Inc
Original Assignee
Kato Hatsujo Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kato Hatsujo Inc filed Critical Kato Hatsujo Inc
Priority to JP63206587A priority Critical patent/JPH0794298B2/en
Publication of JPH0256350A publication Critical patent/JPH0256350A/en
Publication of JPH0794298B2 publication Critical patent/JPH0794298B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To effect sufficient frictional force and stably feed a recording paper by using two types of metal alloys for one material, utilizing the difference in the corrosion functions thereof and forming similar projecting faces on the whole surface of a roller. CONSTITUTION:The mixed fine particles of a metal alloy material 3 having high corrosion resistance and another metal alloy material 2 having high hardness are press molded into a roller 1 shape and then the surface thereof is corroded. Due to this corrosion, a part of the metal material 3 having high corrosion resistance is exposed, and the whole surface which becomes uneven due to the corrosion is coated with a hard film body 4 of a thin film. As a result, the density of the material itself can be made nearly uniform while enabling a uniform uneven face to be formed on the surface of the whole paper feeding roller 1. Thereby, the surface of the roller 1 can effect high frictional force to enable stable feeding of a recording paper used for OA equipment, etc.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明はOA種機器に用いられ、記録用の紙を移動する
ために使用されるロールに関し、特にロール表面を高い
摩擦力を得るようにした紙送り用ロールに関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a roll used in OA type equipment and used to move recording paper, and in particular, the present invention relates to a roll used in OA type equipment to move recording paper. Regarding the paper feed roll.

[従来の技術] 現在のOA種機器多くは、記録用のロール紙が装着され
ており、その紙をロールによって送り出すようになって
いるが、紙の送り出しに際し、それに見合った送り出し
装置として、その駆動精度と共に゛、駆動中に前記紙が
滑らないようなロールを必要とした。
[Prior Art] Most of the current OA type equipment is equipped with roll paper for recording, and the paper is sent out by the roll. In addition to driving precision, it was necessary to use a roll that would prevent the paper from slipping during driving.

そこで、実開昭55−63339号には、ローラの耐久
性を向上させ、効率よく円滑に行う為、セラミックを表
面コーティングして粗面状とする技術が開示されている
Therefore, Japanese Utility Model Application Publication No. 55-63339 discloses a technique in which the surface of the roller is coated with ceramic to give it a rough surface in order to improve the durability of the roller and to perform it efficiently and smoothly.

また、実開昭63−1958号や実開昭63−1959
号には表面に摩擦抵抗を与える素材として、セラミック
の粉体を混合する技術が開示されている。
Also, Utility Model Application No. 63-1958 and Utility Model Application No. 63-1959
The issue discloses a technology that mixes ceramic powder as a material that provides frictional resistance to the surface.

また、特開昭63−134603号には素材に金属粉末
を使用し、これを圧縮成型することにより、前記成型時
に出来る表面の荒さを利用して摩擦力の高い小型機器用
のブーりとする技術が開示されている。
Furthermore, in JP-A No. 63-134603, metal powder is used as the material, and by compression molding it, the roughness of the surface created during the molding is used to create a boob for small equipment with high frictional force. The technology has been disclosed.

[発明が解決しようとする課題] 然し乍ら、かかる従来の技術にあっては、前記したセラ
ミックのように硬質のため耐久性の向上には大きな進歩
があるものの、素材として溶解するときに、それと同時
に混合する金属或は他の素材と比較して比重の差が大き
すぎ、そのため、混成中にセラミックの方が一方位置に
偏るという傾向が現われ、均一分散が望めないという問
題点があった。
[Problems to be Solved by the Invention] However, in such conventional technology, although there has been great progress in improving durability because the ceramic is hard like the above-mentioned ceramic, when it is melted as a material, at the same time The difference in specific gravity is too large compared to the metal or other material to be mixed, and as a result, there is a problem that the ceramic tends to be biased to one position during mixing, and uniform dispersion cannot be expected.

また、セラミック自身硬度が高いため加工性が悪く、均
一な加工の必要性から量産性に欠けるという問題点も発
生した。
In addition, the ceramic itself has high hardness, resulting in poor workability and the need for uniform processing, resulting in a lack of mass production.

[課題を解決するだめの手段] 而して、本発明・は、かかる従来のロールのもつ問題点
を有効に解決せんとして開発されたものであって、耐食
性の大きい金属合金素材と、硬度の大きい他の金属合金
素材との混合粉体を所要形状に圧縮成型したあと表面を
腐食し、前記腐食によって耐食性の大きい金属素材の一
部を表出し、この腐食により凹凸状となった前記表面の
全体に薄膜の硬質皮膜体を被覆した紙送り用ロールを提
供するものである。
[Means for Solving the Problems] The present invention was developed to effectively solve the problems of the conventional rolls, and uses a metal alloy material with high corrosion resistance and a hardness. After compression molding a large mixed powder with other metal alloy materials into a desired shape, the surface is corroded, and a part of the metal material with high corrosion resistance is exposed due to the corrosion, and the surface becomes uneven due to this corrosion. The present invention provides a paper feeding roll whose entire surface is coated with a thin hard coating.

[作用] 本発明は、二種類の合金、即ち耐食性のある金属合金と
、硬度の高い金属合金とを混合してロール状とし、表面
を腐食により耐食性の高い素材を表面にだし、前記摩擦
力の差を補うために、表面全体にコーティ・ングするも
のであるから、素材自身の密度がほぼ均一であり、これ
によってロール全体の面が何れも等しい凹凸面で形成さ
れる。
[Function] The present invention mixes two types of alloys, that is, a metal alloy with corrosion resistance and a metal alloy with high hardness, and forms the mixture into a roll shape, and corrodes the surface to bring out the material with high corrosion resistance to the surface, thereby reducing the frictional force. Since the entire surface is coated in order to compensate for the difference in the material, the density of the material itself is almost uniform, and as a result, the entire surface of the roll is formed with equal uneven surfaces.

しかも、二種類の素材は同一金属であるため、加工上特
に注意する技術上の問題点をも有しないため分散能力が
よく、従って摩擦能力の優れたロールとすることが出来
る。
In addition, since the two types of materials are the same metal, there are no technical problems that require special attention during processing, resulting in good dispersion ability and, therefore, a roll with excellent friction ability.

[実施例] 以下、本発明の一実施例について詳細に説明する。[Example] Hereinafter, one embodiment of the present invention will be described in detail.

本実施例にかかるロールの素材としては、例としてアル
ミニウム合金が使用される。
As the material of the roll according to this embodiment, an aluminum alloy is used, for example.

即ち、第1図に示される様に、本ロール1は耐食性の大
きいアルミニウム金属合金素材3と、硬度の大きい他の
アルミニウム金属合金素材2との混合粉体を所要形状に
圧縮成型したあと表面な腐食し、前記腐食によって耐食
性の大きいアルミニウム金属素材3の一部を表出し、こ
の腐食により凹凸状となった前記表面の全体に薄膜の硬
質皮膜体4を被覆したものである。
That is, as shown in FIG. 1, this roll 1 is made by compression molding a mixed powder of an aluminum metal alloy material 3 with high corrosion resistance and another aluminum metal alloy material 2 with high hardness into a desired shape, and then compressing the powder into a desired shape. A part of the aluminum metal material 3 having high corrosion resistance is exposed due to the corrosion, and a thin hard coating 4 is coated over the entire surface which has become uneven due to the corrosion.

前記耐食性の大きい素材としては、マグネシウムを含有
したアルミニウム合金とし、硬度の大きい素材としては
銅を含有したアルミニウム合金が適している。
As the material with high corrosion resistance, an aluminum alloy containing magnesium is suitable, and as the material with high hardness, an aluminum alloy containing copper is suitable.

前記二種類の、それぞれの合金は細かい粉体に加工され
、第2図のように混合されるが、この混合についてはほ
ぼ両者を半々づつとするか、成るいはマグネシウムを含
有した耐食性の大きいアルミニウム合金を多くする。
Each of the above two types of alloys is processed into fine powder and mixed as shown in Figure 2, but this mixture should be approximately half and half of both, or a highly corrosion-resistant material containing magnesium. Increase aluminum alloy.

そして、必要とする寸法大きさのロール形状に圧縮成型
したあと、加熱して焼結合金として加工され複合材料と
なる。
After compression molding into a roll shape with the required dimensions, the material is heated and processed into a sintered alloy to form a composite material.

前記した材料によれば1両者がいずれもアルミニウムを
主体とした材料であるため、密度差がなく、従って均一
に分散すると共に焼結過程での粒子相互間の拡散により
粒子相互の結合力が、強く固着された材料となる。
According to the above-mentioned materials, 1. Since both materials are mainly made of aluminum, there is no difference in density, so they are uniformly dispersed, and the bonding force between the particles is increased due to the diffusion between the particles during the sintering process. A strongly bonded material.

次ぎに、外部表面を円筒体に機械加工して滑り面とした
あと、本材料の主成分がアルミニウムのため回付ソーダ
により表面の腐食を行う。
Next, the outer surface is machined into a cylindrical body to form a sliding surface, and since the main component of this material is aluminum, the surface is corroded with circulating soda.

第2図は機械加工した状態を、第3図は腐食した後の状
態を示している。
Figure 2 shows the machined state, and Figure 3 shows the state after corrosion.

前記した硬度の大きいアルミニウム合金2は耐食性が弱
いため、腐食が進行するが、他方の合金3はそのままの
状態で保持される。
Aluminum alloy 2, which has a high hardness, has low corrosion resistance, so corrosion progresses, but the other alloy 3 is maintained as it is.

この時、表面は凹凸状となり耐食性の大きい部分のみが
、凸状3,3に残置する。
At this time, the surface becomes uneven and only portions with high corrosion resistance remain on the convex portions 3, 3.

これにより、摩擦面が形成されるのであるが、耐食性の
大きいマグネシウムの含有したアルミニウム3は強度が
低い為に5表面全体の保護が必要となる。 そのため、
表面全体をアルマイト処理することにより硬化層4を形
成して補強することになる。この場合アルマイト以外に
化学的にN1−P塗膜をつけてもよい。
This forms a friction surface, but since the aluminum 3 containing magnesium, which has high corrosion resistance, has low strength, the entire surface 5 needs to be protected. Therefore,
By alumite-treating the entire surface, a hardened layer 4 is formed and reinforced. In this case, an N1-P coating may be applied chemically other than alumite.

かくて、二種類のアルミ合金は完全に同化してロールを
形成するが、高摩擦を得る為の突出部3が表面に均一に
配置されているため、紙を送り出すときには、平面状の
表面をもつ突出部にリードされて精度の高い送り機構と
なる。
In this way, the two types of aluminum alloys are completely assimilated to form a roll, but since the protrusions 3 to obtain high friction are uniformly arranged on the surface, when feeding the paper, it is necessary to use a flat surface. It is guided by the protrusion and becomes a highly accurate feeding mechanism.

また、全体表面が硬質被覆されているため、耐久性は高
く、これにより硬度、精度、送り機構の不具合が発生す
ることはない。
In addition, since the entire surface is coated with a hard coating, the durability is high, and as a result, problems with hardness, accuracy, and feeding mechanism will not occur.

[発明の効果] 以上の如く、本発明に係る紙送り用ロールでは同一素材
による二種類のアルミ金属合金を使用して、腐食能力の
差を利用することにより、表面に凹凸を形成し、これに
より摩擦力を得るものであるから、最も重要な凹凸形状
の均一化かえられ、製品価値の向上に貢献できた。
[Effects of the Invention] As described above, the paper feed roll according to the present invention uses two types of aluminum metal alloys made of the same material, and uses the difference in corrosion ability to form irregularities on the surface. Since the frictional force is obtained through the process, the most important uneven shape can be made uniform, contributing to the improvement of product value.

また、素材も炊質な材料であるため加工が容易であり、
機械加工等品質の安定性が向上し、またロールによる摺
動性の精度に安定性が得られた。
In addition, since the material is of high quality, it is easy to process.
The stability of the quality of machining, etc. has improved, and the accuracy of the sliding properties of the rolls has also become more stable.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明になる紙送り用ロールの概念図を示し、
第2図は二種類のアルミニウム合金を混合して固定した
あと、機械加工により表面を活性した状態図を示し、第
3図は最後にアルマイト等の硬質被覆をした状態図を示
したものである。 2 ・ 3 ・ 4 ・ 紙送り用ロール 腐食される金属 腐食されない金属 硬質被覆
FIG. 1 shows a conceptual diagram of a paper feeding roll according to the present invention,
Figure 2 shows a state diagram in which two types of aluminum alloys are mixed and fixed, and then the surface is activated by machining, and Figure 3 shows a state diagram in which a hard coating such as alumite is finally applied. . 2 ・ 3 ・ 4 ・ Metal hard coating that does not corrode the metal that corrodes the paper feed roll

Claims (1)

【特許請求の範囲】[Claims]  耐食性の大きい金属合金素材と、硬度の大きい他の金
属合金素材との混合粉体を所要形状に圧縮成型したあと
表面を腐食し、前記腐食によって耐食性の大きい金属素
材の一部を表出し、この腐食により凹凸状となった前記
表面の全体に薄膜の硬質皮膜体を被覆したことを特徴と
する紙送り用ロール。
A mixed powder of a metal alloy material with high corrosion resistance and another metal alloy material with high hardness is compression molded into a desired shape, and then the surface is corroded, and the corrosion exposes a part of the metal material with high corrosion resistance. A paper feeding roll characterized in that the entire surface, which has become uneven due to corrosion, is coated with a thin hard coating.
JP63206587A 1988-08-19 1988-08-19 Manufacturing method of paper feed roll Expired - Lifetime JPH0794298B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63206587A JPH0794298B2 (en) 1988-08-19 1988-08-19 Manufacturing method of paper feed roll

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63206587A JPH0794298B2 (en) 1988-08-19 1988-08-19 Manufacturing method of paper feed roll

Publications (2)

Publication Number Publication Date
JPH0256350A true JPH0256350A (en) 1990-02-26
JPH0794298B2 JPH0794298B2 (en) 1995-10-11

Family

ID=16525873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63206587A Expired - Lifetime JPH0794298B2 (en) 1988-08-19 1988-08-19 Manufacturing method of paper feed roll

Country Status (1)

Country Link
JP (1) JPH0794298B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012107285A (en) * 2010-11-16 2012-06-07 Sumitomo Electric Ind Ltd Magnesium alloy member

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61162453A (en) * 1985-01-09 1986-07-23 Nippon Tenshiyashi Kk Roller made of metal
JPS62252689A (en) * 1985-12-20 1987-11-04 ユニオン・カ−バイド・コ−ポレ−シヨン Novel abrasion resistant laser stamped ceramic and metal carbide surface of friction roll for handling long member, production thereof and method for processing long member
JPS63160967A (en) * 1986-12-20 1988-07-04 Kato Hatsujo Kaisha Ltd Roller for feeding sheet and manufacture thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61162453A (en) * 1985-01-09 1986-07-23 Nippon Tenshiyashi Kk Roller made of metal
JPS62252689A (en) * 1985-12-20 1987-11-04 ユニオン・カ−バイド・コ−ポレ−シヨン Novel abrasion resistant laser stamped ceramic and metal carbide surface of friction roll for handling long member, production thereof and method for processing long member
JPS63160967A (en) * 1986-12-20 1988-07-04 Kato Hatsujo Kaisha Ltd Roller for feeding sheet and manufacture thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012107285A (en) * 2010-11-16 2012-06-07 Sumitomo Electric Ind Ltd Magnesium alloy member

Also Published As

Publication number Publication date
JPH0794298B2 (en) 1995-10-11

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