JPH0696270B2 - Method for manufacturing wide loop-shaped elastic belt having recess on inner peripheral surface - Google Patents
Method for manufacturing wide loop-shaped elastic belt having recess on inner peripheral surfaceInfo
- Publication number
- JPH0696270B2 JPH0696270B2 JP61168495A JP16849586A JPH0696270B2 JP H0696270 B2 JPH0696270 B2 JP H0696270B2 JP 61168495 A JP61168495 A JP 61168495A JP 16849586 A JP16849586 A JP 16849586A JP H0696270 B2 JPH0696270 B2 JP H0696270B2
- Authority
- JP
- Japan
- Prior art keywords
- elastic belt
- mold
- peripheral surface
- recess
- inner peripheral
- 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
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、ゴムベルト等の内周面に凹部を有する幅広
のループ状弾性ベルトの製造方法に関するものである。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a wide loop-shaped elastic belt having a recess on the inner peripheral surface of a rubber belt or the like.
内周面に凹部を有する幅広のループ状弾性ベルトをモー
ルド成形する場合、第７図及び第８図に示すように上金
型100と下金型101及び３分割した中金型102,103,104で
キャビティ105を形成し、キャビティ105内へ成形材料
（例えばゴム配合物）を投入し、金型を閉めて加熱し加
硫する。加硫成形後に金型を開放するとき中金型102,10
3,104を同時に抜くことができないので、まず中金型102
をスライドさせることによって抜き、順次中金型103,10
4を抜いてゆく。When a wide loop-shaped elastic belt having a concave portion on the inner peripheral surface is molded, as shown in FIGS. 7 and 8, an upper mold 100, a lower mold 101 and three divided middle molds 102, 103 and 104 are used to form a cavity 105. Then, a molding material (for example, a rubber compound) is put into the cavity 105, the mold is closed and heated to vulcanize. When opening the mold after vulcanization Medium mold 102,10
Since it is not possible to pull out 3,104 at the same time, first, medium mold 102
Remove by sliding the middle mold 103,10
Remove 4
また、分割された金型を成形後に分解する作業を自動化
する方法として、特開昭51−2954号公報に記載のものが
知られている。Further, as a method for automating the work of disassembling the divided molds after molding, the method described in Japanese Patent Laid-Open No. 51-2954 is known.
上述の従来例では、前者は金型の分割時に手間が掛り、
全体としての製造工程が増えてしまうという欠点があっ
た。また、後者では、中金型の縮小、拡張機構を持った
複雑な金型が必要となり、高価な設備になっていた。In the above-mentioned conventional example, the former takes time when the mold is divided,
There is a drawback that the number of manufacturing processes increases as a whole. Further, in the latter case, a complicated die having a reduction and expansion mechanism of a medium die is required, which is an expensive facility.
そこで、この発明は、簡単な設備で製造工程も少ない内
周面に凹部を有する幅広のループ状弾性ベルトの製造方
法を提供することを目的とする。Therefore, an object of the present invention is to provide a method of manufacturing a wide loop-shaped elastic belt having a recess on the inner peripheral surface with simple equipment and few manufacturing steps.
上述の目的を達成する為、内周面に凹部を有する幅広の
ループ状弾性ベルトが反転状態で成形されるキャビティ
を上金型、下金型及び前記凹部を形成する中金型で形成
し、このキャビティに弾性ベルトの材料を投入して成形
し、成形後各金型を開けて成形品を弾性ベルトの弾性を
利用して反転させるものである。In order to achieve the above-mentioned object, a cavity in which a wide loop-shaped elastic belt having a recess on the inner peripheral surface is molded in an inverted state is formed by an upper mold, a lower mold, and a middle mold forming the recess, The material of the elastic belt is put into this cavity for molding, and after molding, each mold is opened and the molded product is inverted by utilizing the elasticity of the elastic belt.
この発明では、金型を閉じてキャビティ内に成形品を成
形した後に、金型を分解するに際しては分解の為の工数
が少なく、かつ型分解の自動化が安価に行なえる。In this invention, when the mold is disassembled after the mold is closed and the molded product is molded in the cavity, the number of steps for disassembling the mold is small, and the mold disassembly can be automated at low cost.
以下にこの発明の好適な実施例を図面を参照にして説明
する。Preferred embodiments of the present invention will be described below with reference to the drawings.
第１図及び第２図に於いて、上金型１と下金型２及び中
央にて複数に分割された中金型3,4で囲まれたキャビテ
ィ５は、内周面にループに沿って凹部11を有する幅広の
ループ状弾性ベルト10が反転状態で成形される形状とな
っている。この中金型3,4はループに沿う凹部11を形成
するものである。そしてこのキャビティ５に弾性ベルト
10の材料を投入して成形し、成形されたものは、第３図
に示すように凹部11が外周面に形成された製品としては
内外が逆転した反転状態にある。この反転状態にある成
形品を弾性ベルト10の弾性を利用して反転させることに
より内周面にループに沿った凹部11を有する幅広のルー
プ状弾性ベルト10を製造する。In FIGS. 1 and 2, the cavity 5 surrounded by the upper mold 1, the lower mold 2, and the middle molds 3 and 4 divided into a plurality of parts at the center is formed along the loop on the inner peripheral surface. A wide loop-shaped elastic belt 10 having a recess 11 is formed in an inverted state. The middle dies 3 and 4 form the recess 11 along the loop. And an elastic belt in this cavity 5
As shown in FIG. 3, the product molded by pouring 10 materials into it is in an inverted state in which the inside and the outside are reversed as a product in which the concave portion 11 is formed on the outer peripheral surface. The molded product in this inverted state is inverted by utilizing the elasticity of the elastic belt 10 to manufacture the wide loop elastic belt 10 having the recess 11 along the loop on the inner peripheral surface.
第４図はかかる製造方法によって作られたループ状弾性
ベルト10であって、ループに沿って凹部11がその内周面
に形成されることになる。FIG. 4 shows a loop-shaped elastic belt 10 produced by such a manufacturing method, in which a concave portion 11 is formed on the inner peripheral surface along the loop.
金型の具体的構成としては、第５図及び第６図に示すよ
うに、２分割された中金型3,4にそれぞれ摺動フレーム
6,7を取付け、この摺動フレーム6,7をそれぞれ互いに遠
ざかる方向へ摺動させることにより、成形後に於ける中
金型3,4の分解が簡単に行なえる。また、上金型１及び
下金型２はそれぞれ油圧シリンダー等を用いて上下に分
解すればよい。As a concrete structure of the mold, as shown in FIG. 5 and FIG. 6, a sliding frame is provided in each of the two divided middle molds 3 and 4.
By mounting 6, 7 and sliding the sliding frames 6, 7 in the directions away from each other, the middle molds 3, 4 can be easily disassembled after molding. Further, the upper mold 1 and the lower mold 2 may be disassembled vertically using a hydraulic cylinder or the like.
以上説明したように、この発明によれば、内周面に凹部
を有する幅広のループ状弾性ベルトが反転状態で成形さ
れるキャビティを上金型、下金型及び複数分割された凹
部形成用の中金型で形成し、このキャビティに弾性ベル
トの材料を投入して成形し、成形後各金型を開けて成形
品を弾性ベルトの弾性を利用して反転させるので、中金
型の縮小、拡張機構をもった複雑な金型は不要となり、
金型の設備に要する費用も極めて安価となる。また、金
型の分解時に於ける工数も減少し、効率よくループ状弾
性ベルトを製造することができる。実用上は各種コンベ
アベルト、ダイミングベルト、伝導ベルト、ゴムクロー
ラ等に利用可能である。As described above, according to the present invention, a cavity in which a wide loop-shaped elastic belt having a recess on the inner peripheral surface is molded in an inverted state is used for forming an upper mold, a lower mold, and a plurality of divided recesses. It is formed with a medium mold, the material of the elastic belt is put into this cavity for molding, and after molding, each mold is opened and the molded product is inverted by utilizing the elasticity of the elastic belt, so the reduction of the middle mold, No need for complicated dies with expansion mechanism,
The cost required for mold equipment is also extremely low. Further, the number of steps for disassembling the mold is reduced, and the loop elastic belt can be efficiently manufactured. Practically applicable to various conveyor belts, dimming belts, conductive belts, rubber crawlers, etc.
第１図は金型の縦断面図、第２図は第１図II−II線断面
図、第３図は成形品の一部断面の正面図、第４図はルー
プ状弾性ベルトの製品完成断面図、第５図は金型装置の
部分的平面図、第６図は金型装置の詳細な端部断面図、
第７図は従来例を示す金型の断面図、第８図は第７図VI
II−VIII線断面図である。 １……上金型、 ２……下金型、 3,4……中金型、 ５……キャビティ、 10……ループ状弾性ベルト、 11……凹部。FIG. 1 is a vertical sectional view of a mold, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, FIG. 3 is a front view of a partial cross section of a molded product, and FIG. 4 is a finished product of a loop-shaped elastic belt. Sectional view, FIG. 5 is a partial plan view of the mold apparatus, FIG. 6 is a detailed end sectional view of the mold apparatus,
FIG. 7 is a sectional view of a mold showing a conventional example, and FIG. 8 is FIG.
It is a II-VIII sectional view taken on the line. 1 ... Upper mold, 2 ... Lower mold, 3,4 ... Medium mold, 5 ... Cavity, 10 ... Loop elastic belt, 11 ... Recessed part.
Claims (1)
ベルトが反転状態で成形されるキャビティを上金型、下
金型及び前記凹部を形成する中金型で形成し、 このキャビティに弾性ベルトの材料を投入して形成し、 形成後各金型を開いて成形品を弾性ベルトの弾性を利用
して反転させることを特徴とする内周面に凹部を有する
幅広のループ状弾性ベルトの製造方法。1. A cavity in which a wide loop-shaped elastic belt having a recess on the inner peripheral surface is molded in an inverted state is formed by an upper mold, a lower mold and a middle mold forming the recess, and the cavity is formed in this cavity. A wide loop-shaped elastic belt having a concave portion on the inner peripheral surface, which is formed by charging the material of the elastic belt, opening each mold after formation, and reversing the molded product by utilizing the elasticity of the elastic belt. Manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61168495A JPH0696270B2 (en) | 1986-07-17 | 1986-07-17 | Method for manufacturing wide loop-shaped elastic belt having recess on inner peripheral surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61168495A JPH0696270B2 (en) | 1986-07-17 | 1986-07-17 | Method for manufacturing wide loop-shaped elastic belt having recess on inner peripheral surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6325028A JPS6325028A (en) | 1988-02-02 |
| JPH0696270B2 true JPH0696270B2 (en) | 1994-11-30 |
Family
ID=15869143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61168495A Expired - Fee Related JPH0696270B2 (en) | 1986-07-17 | 1986-07-17 | Method for manufacturing wide loop-shaped elastic belt having recess on inner peripheral surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0696270B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100190348B1 (en) * | 1992-12-25 | 1999-06-01 | 가부시키가이샤 토스카 | Synthetic resin screw molding method and apparatus |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4833268A (en) * | 1971-09-04 | 1973-05-08 | ||
| JPS553129A (en) * | 1978-06-21 | 1980-01-10 | Jeol Ltd | X-ray analyzer for scanning electron microscope or the like |
| JPS5664852A (en) * | 1979-10-31 | 1981-06-02 | Ohtsu Tire & Rubber Co Ltd | Method and apparatus for making tubeless pneumatic tire |
| JPS5998812A (en) * | 1982-07-08 | 1984-06-07 | Toyo Seikan Kaisha Ltd | Production of plastic cap |
-
1986
- 1986-07-17 JP JP61168495A patent/JPH0696270B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6325028A (en) | 1988-02-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |