JPS62251127A - Production of rubber string - Google Patents
Production of rubber stringInfo
- Publication number
- JPS62251127A JPS62251127A JP9574286A JP9574286A JPS62251127A JP S62251127 A JPS62251127 A JP S62251127A JP 9574286 A JP9574286 A JP 9574286A JP 9574286 A JP9574286 A JP 9574286A JP S62251127 A JPS62251127 A JP S62251127A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- mandrel
- rubber body
- tubular
- cutting blade
- 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.)
- Pending
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 70
- 239000005060 rubber Substances 0.000 title claims abstract description 70
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 238000000465 moulding Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 abstract description 10
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000004073 vulcanization Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、ゴムベルト、衣服用のゴムヒモなどに用いる
長尺のゴムヒモの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing long rubber strings used for rubber belts, rubber strings for clothing, and the like.
（従来の技術）
従来、この種のゴムヒモは、押出し成形機によりゴムを
押出し、次いでこれを連続加硫法や加硫缶法で加硫成形
することによって製造されるのが一般であった。(Prior Art) Conventionally, this type of rubber string has generally been manufactured by extruding rubber using an extruder and then vulcanizing it using a continuous vulcanization method or a vulcanization can method.
（発明が解決しようとする問題点）
ところが上記従来の製造方法では、次のような問題点が
生じる。(Problems to be Solved by the Invention) However, the above conventional manufacturing method causes the following problems.
■ 押出し時の圧力変動により加硫前の軟化ゴムが変形
するため、ゴムヒモの断面寸法の精度が悪く、±１０％
前後の誤差が生じる。■ Because the softened rubber before vulcanization is deformed due to pressure fluctuations during extrusion, the accuracy of the cross-sectional dimensions of the rubber string is poor, resulting in ±10%
There will be errors before and after.
■ 押出し成形機の押出し口の寸法に限界があって、−
辺の長さ又は直径が３１１前後の断面寸法のものしか製
造できず、これより細いゴムヒモの製造は困難である。■ There is a limit to the size of the extrusion port of the extrusion molding machine, and -
It is only possible to manufacture rubber strings with cross-sectional dimensions of around 311 mm in length or diameter, and it is difficult to manufacture rubber strings thinner than this.
■ 押出し成形機では硬質ゴム、高粘度ゴムのゴムヒモ
を成形することは困難である。■ It is difficult to mold rubber strings made of hard rubber or high viscosity rubber using an extrusion molding machine.
■ ゴム材料の構成分子の方向性に配向が生じる。■ Orientation occurs in the directionality of the constituent molecules of the rubber material.
■ 押出し成形機及びこれに伴う製造装置が高くつき、
又ロットサイズが大きくなり、少量生産に適さない。■ Extrusion molding machines and associated manufacturing equipment are expensive;
Also, the lot size becomes large, making it unsuitable for small-scale production.
（問題点を解決するための手段）
本発明は上記問題点を解決するため、チューブ状ゴムを
加硫成形した後、これをマンドレルに支持させた状態で
、マンドレルとカット刃との間に相対的な回転及び軸方
向移動を与え、カット刃で螺旋状の切り溝をチューブ状
ゴムに形成することによって、長尺のゴムヒモを得るこ
とを特徴とする。(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a structure in which, after vulcanization-molding a tubular rubber, there is a gap between the mandrel and the cutting blade while supporting the tubular rubber on a mandrel. The method is characterized in that a long rubber string is obtained by applying rotation and axial movement, and forming a spiral cut groove in a tubular rubber with a cutting blade.
（作 用）
本発明の製造方法は上記構成を有するので、次のような
作用を発揮することができる。(Function) Since the manufacturing method of the present invention has the above configuration, it can exhibit the following effects.
■ マンドレルとカット刃との相対回転によってチュー
ブ状ゴムをカットする方法を採るたため、ゴムヒモの断
面寸法の精度が良（なり、好条件下では誤差を±０．０
５ｍ１以下に抑えることも可能である。■ Since the tubular rubber is cut by relative rotation between the mandrel and the cutting blade, the cross-sectional dimensions of the rubber string are highly accurate (under good conditions, the error can be reduced to ±0.0).
It is also possible to suppress the size to 5 m1 or less.
■ チューブ状ゴムの厚みを変えることによって細い形
状のゴムヒモもできるようになり、−辺が０．３鰭程度
の断面寸法の細いゴムヒモも成形できるようになる。■ By changing the thickness of the tubular rubber, it is possible to make thin rubber strings, and it is also possible to form thin rubber strings with a cross-sectional dimension of about 0.3 fins on the negative side.
■ 従来のように、押出し成形機の押出し口を通してゴ
ムヒモを得る方法でなく、加硫成形されたチューブ状ゴ
ムをカットする方法を採るため、ゴム素材が限定されな
い。- The rubber material is not limited because the rubber string is cut from a vulcanized rubber tube rather than the conventional method of obtaining the rubber string through the extrusion port of an extrusion molding machine.
■ 従来の製造方法に比し簡易な装置でゴムヒモを製造
することができ、且つ小ロットでの生産が可能になるの
で、少量生産に適する。(2) Rubber strings can be manufactured using simpler equipment than conventional manufacturing methods, and small-lot production is possible, making it suitable for small-lot production.
■ チューブ状ゴムの厚みやカット刃の移りピンチを調
整することによって、容易に種々の断面寸法のゴムヒモ
を成形することができる（実施例）
本発明を、図面に示す実施例に基づき具体的に説明する
。■ Rubber strings with various cross-sectional dimensions can be easily formed by adjusting the thickness of the tubular rubber and the transfer pinch of the cutting blade (Example) The present invention will be specifically explained based on the example shown in the drawings. explain.
先ず天然ゴム材料又は合成ゴム材料に加硫剤、着色剤等
の添加剤を混入した後、ゴム材料を押出し成形法や圧縮
成形法により加硫成形し、第１図に示すようなチューブ
状ゴム１を成形する。この際、ゴムヒモの用途に応じて
ゴム材料に加える添加剤の量を調整してゴム材料のゴム
硬度やゴム弾性を変えると良く、又チューブ状ゴム１の
厚みひいてはゴムヒモの断面寸法に寸法精度を高める必
要があれば研磨機を用いて研磨すると良い。First, additives such as a vulcanizing agent and a coloring agent are mixed into a natural rubber material or a synthetic rubber material, and then the rubber material is vulcanized and molded by extrusion molding or compression molding to form a tubular rubber as shown in Figure 1. Mold 1. At this time, it is best to adjust the amount of additives added to the rubber material depending on the use of the rubber string to change the rubber hardness and rubber elasticity of the rubber material, and also to improve the dimensional accuracy of the thickness of the rubber tube 1 and the cross-sectional dimensions of the rubber string. If it is necessary to improve it, it is best to polish it using a polishing machine.
次に第５図に示すように、マンドレル２を旋盤の回転ヘ
ッド７とテールストック８で両端部を支持し、マンドレ
ル２の表面にライニングされたゴム層９を介して前記チ
ューブ状ゴム１を支持さする。ゴム層９は、チューブ状
ゴム１とマンドレル２を相対回転不可に結合させると共
にカット刃３とマンドレル２表面とが直接に接触するの
を防ぐ役割を持つ。このゴム層９の素材は軟質ゴムで厚
さが４ａ前後のものが適当であり、再生研磨して使用す
ることができる。Next, as shown in FIG. 5, the mandrel 2 is supported at both ends by the rotating head 7 and tail stock 8 of the lathe, and the tubular rubber 1 is supported through the rubber layer 9 lined on the surface of the mandrel 2. rub The rubber layer 9 serves to connect the tubular rubber 1 and the mandrel 2 so that they cannot rotate relative to each other, and also to prevent the cutting blade 3 and the surface of the mandrel 2 from coming into direct contact. The rubber layer 9 is suitably made of soft rubber with a thickness of about 4 mm, and can be used after being recycled and polished.
上記装置において、第５図及び第２図に示すようにマン
ドレル２に支持されたチューブ状ゴム１を回転させつつ
、カット刃３をマンドレル２の軸方向Ｘに移動させるこ
とによってチューブ状ゴム１に螺旋状の切り溝４を形成
する。この切り溝４は、第２図、第３図及び第５図に示
すようにマンドレル２からチューブ状ゴム１を取外した
後に全体がばらけないよう両端部５ａ、５ａを除いて（
除去部分をＡで示す。）形成するようにする。In the above device, as shown in FIGS. 5 and 2, the tubular rubber 1 is cut by rotating the tubular rubber 1 supported by the mandrel 2 and moving the cutting blade 3 in the axial direction X of the mandrel 2. A spiral cut groove 4 is formed. As shown in FIGS. 2, 3, and 5, this cut groove 4 is formed with the exception of both ends 5a and 5a so that the tubular rubber 1 does not come apart as a whole after being removed from the mandrel 2.
The removed portion is indicated by A. ) to form.
その後チユーブ状ゴム１をマンドレル２から取外し、第
３図に示す螺旋状ゴム５に成形した段階でその両端部５
ａ、５ａをカットする。Thereafter, the tubular rubber 1 is removed from the mandrel 2, and both ends 5 are formed into a spiral rubber 5 as shown in FIG.
Cut a and 5a.
かくして両端部５ａ、５ａがカットされた螺旋状ゴム５
を直線状に引き伸ばすと、第４図に示すような長尺のゴ
ムヒモ６を得ることができる。Thus, the spiral rubber 5 has both ends 5a, 5a cut.
By stretching it in a straight line, a long rubber string 6 as shown in FIG. 4 can be obtained.
本発明は上記実施例に示す外、種々の態様に構成するこ
とができる。例えばチューブ状ゴムｌに切り溝４を形成
する方法は上記方法に限定されず、カット刃３を固定し
て、マンドレル２を回転させつつ、軸方向に移動させる
方法を採っても良い。The present invention can be configured in various ways other than those shown in the above embodiments. For example, the method of forming the cut grooves 4 in the tubular rubber l is not limited to the above method, and a method may be adopted in which the cutting blade 3 is fixed and the mandrel 2 is rotated and moved in the axial direction.
（発明の効果）
本発明は上記構成、作用を有するので、寸法精度が良く
、太いものから細いものまで広範囲にわたる長尺のゴム
ヒモを、ゴム素材の制限を受けずに能率良く製造するこ
とができる。(Effects of the Invention) Since the present invention has the above-described structure and operation, it is possible to efficiently manufacture long rubber strings with good dimensional accuracy and a wide range of lengths from thick to thin without being limited by the rubber material. .
【図面の簡単な説明】
図面は本発明の実施例を示し、第１図、第２図、第３図
は夫々本発明の製造工程を示す斜視図、第４図は本発明
の製造方法で得られたゴムヒモの斜視図、第５図は本発
明に用いる製造装置を示す断面図である。[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show embodiments of the present invention, and FIG. 1, FIG. 2, and FIG. 3 are perspective views showing the manufacturing process of the present invention, and FIG. 4 shows the manufacturing method of the present invention. A perspective view of the obtained rubber string and FIG. 5 are a sectional view showing a manufacturing apparatus used in the present invention.
Claims (1)
レルに支持させた状態で、マンドレルとカット刃との間
に相対的な回転及び軸方向移動を与え、カット刃で螺旋
状の切り溝をチューブ状ゴムに形成することによって、
長尺のゴムヒモを得ることを特徴とするゴムヒモの製造
方法。(1) After vulcanizing and molding tubular rubber, while supporting it on a mandrel, relative rotation and axial movement are applied between the mandrel and the cutting blade, and the cutting blade forms a spiral groove. By forming into a tubular rubber,
A method for producing a rubber string, characterized by obtaining a long rubber string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9574286A JPS62251127A (en) | 1986-04-24 | 1986-04-24 | Production of rubber string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9574286A JPS62251127A (en) | 1986-04-24 | 1986-04-24 | Production of rubber string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62251127A true JPS62251127A (en) | 1987-10-31 |
Family
ID=14145941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9574286A Pending JPS62251127A (en) | 1986-04-24 | 1986-04-24 | Production of rubber string |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62251127A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112406129A (en) * | 2020-10-29 | 2021-02-26 | 清华大学 | Production method and production system of rubber part |
-
1986
- 1986-04-24 JP JP9574286A patent/JPS62251127A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112406129A (en) * | 2020-10-29 | 2021-02-26 | 清华大学 | Production method and production system of rubber part |
| CN112406129B (en) * | 2020-10-29 | 2021-11-30 | 清华大学 | Production method and production system of rubber part |
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