JPH0141490B2 - - Google Patents
Info
- Publication number
- JPH0141490B2 JPH0141490B2 JP12457681A JP12457681A JPH0141490B2 JP H0141490 B2 JPH0141490 B2 JP H0141490B2 JP 12457681 A JP12457681 A JP 12457681A JP 12457681 A JP12457681 A JP 12457681A JP H0141490 B2 JPH0141490 B2 JP H0141490B2
- Authority
- JP
- Japan
- Prior art keywords
- belt
- mold
- cylindrical
- drum
- sleeve
- 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
- 239000012530 fluid Substances 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 14
- 238000004073 vulcanization Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D29/00—Producing belts or bands
- B29D29/10—Driving belts having wedge-shaped cross-section
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Description
【発明の詳細な説明】
本発明は多リブベルト、Ｖベルト、特に主とし
てポリＶベルトの製造過程において表面リブの型
付を良好ならしめると共に、抗張体が均一に配列
し、横方向のウエーブのない、しかもベルト周長
が一定した品質良好な製品を能率的かつ経済的に
得るための伝動ベルトの加硫方法ならびにこの方
法を実施するためのベルト加硫機に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention improves the patterning of surface ribs in the manufacturing process of multi-rib belts, V-belts, especially mainly poly V-belts, and improves the patterning of surface ribs so that the tensile elements are uniformly arranged and the lateral waves are The present invention relates to a method of vulcanizing a power transmission belt for efficiently and economically obtaining a high-quality product with a constant belt circumference, and a belt vulcanizer for carrying out this method.
従来、ポリＶベルトを製造するには、通常、円
筒ドラムの外周面にゴム付帆布、接着ゴムシー
ト、スパイラル状の抗張体ローブ、一定厚みのゴ
ムシートを順次無端状に巻付けて広幅の未加硫ベ
ルトスリーブを逆成形し、これをドラムと共に加
硫後、ベルトスリーブ表面を断面三角状のグライ
ンダーで切削して複数のリブを形成する方法がと
られているが、この方法では切削したゴムがスク
ラツプになるばかりでなくグラインダーの回転時
に微少の振れを生じても正確にリブを形成できな
い問題点がある。 Conventionally, to manufacture a poly V belt, a rubberized canvas, an adhesive rubber sheet, a spiral tensile material lobe, and a rubber sheet of a certain thickness are sequentially wound endlessly around the outer circumferential surface of a cylindrical drum. The method used is to reverse mold an unvulcanized belt sleeve, vulcanize it together with a drum, and then cut the belt sleeve surface with a grinder with a triangular cross section to form multiple ribs. There is a problem that not only the rubber becomes scrap, but also that ribs cannot be formed accurately even if a slight vibration occurs when the grinder rotates.
そこで、このような問題を解決すべく、さきに
実公昭45−30621号公報により、広幅の円筒状未
加硫ベルトスリーブを内周面にＶ溝を刻設したリ
ングモールドの内面に挿入し、更にその内面に可
撓性円筒状パツキングを内装し、上下部を密閉し
てパツキング内部に蒸気を送入して未加硫ベルト
表面をリングモールドのＶ溝に圧着せしめポリＶ
ベルトを形成する加硫方法が提案されているが、
この方法では未加硫ベルトスリーブを別のドラム
で成形後、ドラムより取外してリングモールドの
内面に挿入する工程がとられている関係上未加硫
ベルトスリーブの成形周長がリングモールドより
長過ぎるとパツキングを介して押圧加硫する際、
Ｖリブの型付（リブ形状の形成）は良好であるに
しても、抗張体層がベルト横方向にウエーブし、
所定幅に切断して得られたポリＶベルトの両サイ
ドに抗張体層がまばらに露出して製品の美観を損
うのみならず、抗張体がウエーブしているための
ベルト駆動中ベルトの伸びを生じ、更にベルト振
動を起すなでの問題があり、又未加硫ベルトスリ
ーブの成形周長が短い場合には抗張体のウエーブ
の問題はないが、ベルト表面のＶ形リブの形状を
正確に形成できない難点があり、更にリングモー
ルド内に柔軟な未加硫ベルトスリーブを単独で挿
入するためスリーブ自体の保形が困難で形くずれ
をするなどの各種問題点がある。 Therefore, in order to solve this problem, according to Japanese Utility Model Publication No. 45-30621, a wide cylindrical unvulcanized belt sleeve was inserted into the inner surface of a ring mold with V grooves carved on the inner circumferential surface. Furthermore, a flexible cylindrical packing is installed inside the belt, the upper and lower parts are sealed, and steam is sent into the packing to press the surface of the unvulcanized belt into the V-groove of the ring mold.
Vulcanization methods for forming belts have been proposed;
In this method, the unvulcanized belt sleeve is molded in a separate drum, and then removed from the drum and inserted into the inner surface of the ring mold.As a result, the molded circumference of the unvulcanized belt sleeve is longer than that of the ring mold. When press vulcanizing through packing,
Even if the V-rib patterning (rib shape formation) is good, the tensile layer may wave in the lateral direction of the belt.
The tensile layer is sparsely exposed on both sides of the poly V belt obtained by cutting it to a predetermined width, which not only spoils the aesthetic appearance of the product, but also causes damage to the belt while the belt is being driven because the tensile layer is wavy. There is a problem with elongation and belt vibration, and if the circumference of the unvulcanized belt sleeve is short, there is no problem with the tensile material waving, but the shape of the V-shaped rib on the belt surface Furthermore, since the flexible unvulcanized belt sleeve is inserted alone into the ring mold, it is difficult to maintain the shape of the sleeve itself, resulting in various problems such as the sleeve losing its shape.
本発明はこのような従来の問題点に着目し、前
記加硫ベルトの周長を一定にし、かつＶ形リブを
正確に形成せしめることを目的として発明された
もので、その特徴とするところは流体流通口を備
えた上下開放の内型円筒ドラムの外周面に円筒状
可撓性ジヤケツトを介して無端状未加硫ベルトス
リーブを巻付け、次いでこのスリーブを巻付けた
状態のまま内周面に周方向に延びる複数の溝を有
し、内部に加熱機構を備えた上下開放の外型円筒
モールド内部所定位置に所要間隙を存して配置
し、その後、前記内型円筒ドラムの流体流通口に
圧力流体送入機構をパイプならびにジヨイントを
用いて連結し、圧力流体を前記内型円筒ドラム外
周面と円筒状可撓性ジヤケツト内面との間に送入
して前記無端状未加硫ベルトスリーブを上記可撓
性ジヤケツトを介して膨張加熱せしめ、外型円筒
モールド内周面の複数の溝部に押圧し成形する第
１の発明と前記第１の発明の実施に使用するベル
ト加硫機からなる第２の発明によつて構成される
点にある。 The present invention has focused on these conventional problems, and has been invented with the aim of making the circumference of the vulcanized belt constant and forming V-shaped ribs accurately.The present invention is characterized by: An endless unvulcanized belt sleeve is wrapped around the outer circumferential surface of an internal cylindrical drum with a top and bottom open structure equipped with a fluid communication port via a cylindrical flexible jacket, and then the inner circumferential surface is wrapped with this sleeve wrapped around the outer circumferential surface of an inner cylindrical drum with a top and bottom open structure. A top and bottom open outer cylindrical mold having a plurality of grooves extending in the circumferential direction and a heating mechanism inside is placed at a predetermined position with a required gap, and then the fluid flow opening of the inner cylindrical drum is placed at a predetermined position with a required gap. A pressure fluid supply mechanism is connected to the sleeve using a pipe and a joint, and pressure fluid is supplied between the outer circumferential surface of the inner cylindrical drum and the inner surface of the cylindrical flexible jacket, and the endless unvulcanized belt sleeve The first invention comprises a belt vulcanizer used to carry out the first invention, which expands and heats the material through the flexible jacket and presses it into a plurality of grooves on the inner peripheral surface of an outer cylindrical mold. The present invention is constituted by the second invention.
以下、前記各発明に係るベルトの加硫方法なら
びにベルト加硫機を添付図面により順次説明する
が、ベルト加硫方法の説明の都合上、先ずベルト
加硫機について説明する。 Hereinafter, belt vulcanizing methods and belt vulcanizing machines according to each of the above-mentioned inventions will be explained in sequence with reference to the accompanying drawings, but for convenience of explanation of the belt vulcanizing method, the belt vulcanizing machine will be explained first.
第１図は本発明に係るベルト加硫機の加硫前の
状態を示す横断面図、第２図は同じく加硫後の状
態を示す横断面図で、これら各図において、１は
基台７上に載置されている鉄製の上下開放された
内型円筒ドラムで、このドラム１の中央部には後
述する圧力流体送入、排出のための流体流通口Ａ
が設けられ、又上下部外周面には夫々凹溝１′，
１′がドラム１の円周面に沿つて刻設されている。 FIG. 1 is a cross-sectional view showing the state of the belt vulcanizer according to the present invention before vulcanization, and FIG. 2 is a cross-sectional view showing the state after vulcanization. In each of these figures, 1 is a base. 7 is an internal cylindrical drum made of iron with an open top and bottom, and in the center of this drum 1 there is a fluid communication port A for supplying and discharging pressure fluid, which will be described later.
are provided, and grooves 1' and 1' are provided on the outer peripheral surfaces of the upper and lower parts, respectively.
1' are carved along the circumferential surface of the drum 1.
そして、２は前記ドラム１の外周に装着された
弾性体よりなる膨張収縮可能な円筒状可撓性ジヤ
ケツトであり、その上下部はフラツト部より厚く
内方に鈎部が前記内型ドラム１の前記凹溝１′，
１′に嵌入されていると共に、夫々の上下部にお
いて鉄製ワツパー３，３が挿入され、更にワツパ
ー３，３円周上の複数個所にボルト４，４を通し
て前記内型ドラム１上に締付固定されている。従
つて、可撓性ジヤケツト２は上下部で固定され、
中央のフラツト部は内型ドラム１と通常時は密着
された状態となつている。一方、図中５は逆成形
により成形された未加硫ベルトスリーブで、前記
内型ドラム１に装着された可撓性ジヤケツト２の
外周面にゴム付帆布Ｃ、接着ゴムＲ、ポリエステ
ル又はポリアミド繊維よりなる低伸度高強力の抗
張体ロープＴ、圧縮ゴムR′を順次無端状に巻付
けることによつてフラツト状に形成されている。 Reference numeral 2 denotes a cylindrical flexible jacket made of an elastic body which is attached to the outer periphery of the drum 1 and can be expanded and contracted. the groove 1';
1', iron watzpers 3, 3 are inserted in the upper and lower parts of each watzpere, and bolts 4, 4 are passed through multiple locations on the circumference of the watzpers 3, 3 and tightened and fixed onto the inner drum 1. has been done. Therefore, the flexible jacket 2 is fixed at the upper and lower parts,
The central flat portion is normally in close contact with the inner drum 1. On the other hand, 5 in the figure is an unvulcanized belt sleeve formed by reverse molding, and the outer peripheral surface of the flexible jacket 2 attached to the inner drum 1 is coated with rubber-covered canvas C, adhesive rubber R, and polyester or polyamide fibers. It is formed into a flat shape by sequentially winding a low elongation, high strength tensile rope T and compressed rubber R' in an endless manner.
又、前記内型円筒ドラム１は、その中央付近に
設けられた流体流通口ＡがジヨイントJ1、流体送
入排出パイプ又は可撓性ホースK1、ジヨイント
J2を経て切替えバルブＶと連結され、この切替え
バルブＶから一方のパイプK2により高圧蒸気又
は高圧空気のような流体送入機Ｍと連結されると
共に、他方のパイプK3により真空ポンプＰと連
結されている。 In addition, the inner cylindrical drum 1 has a fluid flow port A provided near its center that is connected to a joint J1 , a fluid supply/discharge pipe or a flexible hose K1 , and a joint.
It is connected to a switching valve V via J2 , and from this switching valve V it is connected to a fluid feeder M such as high pressure steam or high pressure air through one pipe K2 , and a vacuum pump P through the other pipe K3 . is connected to.
以上は、内型ドラム１の構成であるが、この外
周には内周面に周方向にのびる複数横条のＶ形溝
Ｇが刻設されていると共に内部に加熱ヒーター、
スチームパイプなどの加熱機構（図示せず）を内
装した上下が開放された所定寸法の外型円筒モー
ルド６が前記ドラム１に対応してドラム１を包囲
し一定の間隔Ｗをおいて基台７上に固定されてい
る。 The above is the structure of the inner drum 1. On the outer periphery, a plurality of horizontal V-shaped grooves G extending in the circumferential direction are carved on the inner circumferential surface, and a heating heater is provided inside.
An outer cylindrical mold 6 with a predetermined size and open top and bottom, which is equipped with a heating mechanism (not shown) such as a steam pipe, surrounds the drum 1 and is spaced at a fixed interval W by a base 7. Fixed on top.
この外型円筒モールド６は通常は分割不可能な
円筒体であるが、第３図に示すように軸方向に複
数個（例えばＤ，D′で２分割）に分割可能にす
ることもできる。 This outer cylindrical mold 6 is normally a cylindrical body that cannot be divided, but as shown in FIG. 3, it can also be made to be divisible into a plurality of pieces in the axial direction (for example, divided into two at D and D').
本発明ベルト加硫機は以上のような構成よりな
るものであり、次にこのベルト加硫機を使用して
実施する伝動ベルトの加硫方法について説明す
る。 The belt vulcanizer of the present invention has the above-mentioned configuration. Next, a method of vulcanizing a power transmission belt using this belt vulcanizer will be described.
先ず、成形工程で内型円筒ドラム１に外装され
ている前記円筒状可撓性ジヤケツト２の外周にフ
ラツト状の広幅未加硫ベルトスリーブ５を巻付
け、次いでこのスリーブ５をドラム１に巻付けた
状態のままで第１図に示す如く、外型モールド６
の内側所定位置に空隙部Ｗを形成して基台７上に
載置固定する。この場合、内型ドラム１は別の成
形工程より移動してくる関係上、流体流通口Ａと
パイプK1とは分離しており、内型ドラム１を基
台７に載置後、流体流通口ＡをジヨイントJ1でパ
イプK1と連結する。 First, in the molding process, a flat wide uncured belt sleeve 5 is wrapped around the outer circumference of the cylindrical flexible jacket 2 that is sheathed on the inner cylindrical drum 1, and then this sleeve 5 is wrapped around the drum 1. As shown in Fig. 1, the outer mold 6 is
A gap W is formed at a predetermined position inside the base 7, and the base 7 is placed and fixed thereon. In this case, since the inner drum 1 is moved from another molding process, the fluid flow port A and the pipe K 1 are separated, and after the inner drum 1 is placed on the base 7, the fluid flow Connect mouth A to pipe K 1 with joint J 1 .
次いで、流体送入機Ｍを作動して高圧空気もし
くは高圧蒸気をパイプK2、バルブＶ、パイプK1、
流通口Ａを経て可撓性ジヤケツト２の内部に送入
すると、可撓性ジヤケツト２は、その上下部が内
型ドラム１上にワツパー３，３及びボルト４，４
で密閉固定されているため、可撓性ジヤケツト２
の内面と内型ドラム１の外面の間にエヤーが充満
して可撓性ジヤケツト２は次第に膨脹し、その外
周面に装着されている未加硫ベルトスリーブ５を
半径方向にＷだけ均一に膨脹して加熱ヒーター若
しくは高温蒸気で加熱した外型モールド６のＶ形
突起Ｈと接触せしめる。 Next, the fluid feeder M is operated to supply high pressure air or high pressure steam to the pipe K 2 , the valve V, the pipe K 1 ,
When fed into the flexible jacket 2 through the flow port A, the flexible jacket 2 has its upper and lower portions placed on the inner drum 1 with the wrappers 3, 3 and bolts 4, 4.
Flexible jacket 2
Air is filled between the inner surface of the inner drum 1 and the outer surface of the inner drum 1, and the flexible jacket 2 gradually expands, and the unvulcanized belt sleeve 5 attached to the outer peripheral surface of the jacket 2 is uniformly expanded by W in the radial direction. Then, it is brought into contact with the V-shaped protrusion H of the outer mold 6 heated by a heating heater or high-temperature steam.
このとき、可撓性ジヤケツト２の膨脹押圧力に
より未加硫ベルトスリーブ５の表面圧縮ゴム層
R′は外型モールド６の熱で次第に流動状態を呈
しながら加硫されると共に外型モールド６のＶ溝
Ｇ中に喰い込み、第２図の如くスリーブ５の表面
に複数のＶ形突条を有する加硫ポリＶベルトスリ
ーブ５′を形成するに至る。 At this time, the compressed rubber layer on the surface of the unvulcanized belt sleeve 5 is compressed by the expansion pressing force of the flexible jacket 2.
R' is gradually vulcanized into a fluid state by the heat of the outer mold 6, and is bitten into the V groove G of the outer mold 6, forming a plurality of V-shaped protrusions on the surface of the sleeve 5 as shown in FIG. Thus, a vulcanized poly V-belt sleeve 5' is formed.
そして、加硫後はバルブＶを真空ポンプＰの方
へ切替えて、真空ポンプＰを作動させ可撓性ジヤ
ケツト２内に充満しているエヤーを排気し、次い
で吸引作用でジヤケツト２を第１図の元の位置に
収縮復帰せしめる。 After vulcanization, the valve V is switched to the vacuum pump P, the vacuum pump P is operated to exhaust the air filling the flexible jacket 2, and then the jacket 2 is pulled up by suction as shown in Fig. 1. Let it contract and return to its original position.
次いで、内型ドラム１、加硫ポリＶベルトスリ
ーブ５′を取出すが、取出された加硫ポリＶベル
ト５′は、以後別のドラムに挿入し、スリーブ
５′の表面を円周方向に所定幅に切断し、ドラム
より取出して反転することにより周長が一定で、
Ｖ形リブが正確に型付形成された第４図の如き複
数本のポリＶベルトが得られる。 Next, the inner drum 1 and the vulcanized poly V-belt sleeve 5' are taken out, but the taken out vulcanized poly V-belt 5' is then inserted into another drum, and the surface of the sleeve 5' is circumferentially aligned at a predetermined position. By cutting it to width, taking it out from the drum and inverting it, the circumference is constant.
A plurality of poly V-belts as shown in FIG. 4 in which V-shaped ribs are accurately molded are obtained.
尚、ここで使用する外型円筒モールド６は前述
の如く第３図のような分割式モールドを使用する
こともでき、このような分割モールド６を使用す
れば未加硫スリーブ５の挿入ならびに加硫スリー
ブ５′の外型モールド６より取外しが容易にでき、
かつこの分割面Ｄ，D′が一種のエヤー抜きの機
能を果し、Ｖ形リブをより一層正確に型付形成す
ることができる。 Incidentally, the outer cylindrical mold 6 used here can also be a split type mold as shown in FIG. It can be easily removed from the outer mold 6 of the sulfur sleeve 5'.
In addition, these dividing surfaces D and D' function as a kind of air bleeder, and the V-shaped rib can be molded and formed more accurately.
又、ここでは主としてポリＶベルトの加硫方法
について述べたが、本発明はポリＶベルトに限定
するものではなく、例えば断面台形状のＶベルト
を連結した多リブベルトの場合には第５図の如く
外型モールド６の内周面に台形溝を連設すること
により第６図の如き多リブベルトを得ることがで
き、又、リブ部を１本宛切断することにより第７
図の如き複数本のＶベルトを得ることができる。 Furthermore, although the method for vulcanizing poly V-belts has been mainly described here, the present invention is not limited to poly-V belts. By continuously providing trapezoidal grooves on the inner peripheral surface of the outer mold 6, a multi-rib belt as shown in FIG.
A plurality of V-belts as shown in the figure can be obtained.
以上の如く、本発明は上下開放の円筒ベルトの
外周面に可撓性ジヤケツトを介して装着されたフ
ラツトな未加硫ベルトスリーブを流体圧力により
スリーブ全周面を一時に膨脹伸張せしめると同時
に内周面に複数溝を形成し、加熱された外型モー
ルドに押圧してスリーブ表面にリブを形成加硫す
る方法であるから得られたベルトは周長が一定で
伸びが少く、かつリブ面は正確に型付形成される
ためベルトの伝動効率を増大せしめることができ
ると共に従来法に比し操作が極めて簡単でかつス
クラツプも皆無になり大幅なコストダウンできる
など数多くの利点を有している。又、本発明は前
述の如く内型円筒ドラム及び外型円筒モールドを
上下開放型として圧力流体を内型円筒ドラムのベ
ルト外周と可撓性ジヤケツトとの間に直接送入せ
しめるため圧力流体の無駄がなく、流体圧を効率
的に作用せしめると共に、内型円筒ドラムを外型
との間に適宜、空隙を有して配置可能であるた
め、上部よりエアは抜け、従来の密閉型の如くエ
ア抜きの必要もなく極めて簡単であり、ベルト加
硫成型を容易かつ簡易となし、実用性を増大す
る。しかも、本発明の前記方法を実施する装置は
簡単な機構で、取扱い易く、かつコンパクトで前
記有効なベルトを得るのに頗る好適である。 As described above, the present invention uses a flat unvulcanized belt sleeve attached to the outer circumferential surface of a vertically open cylindrical belt via a flexible jacket to simultaneously expand and expand the entire circumferential surface of the sleeve using fluid pressure. This method forms multiple grooves on the circumferential surface and presses against a heated outer mold to form ribs on the sleeve surface.The resulting belt has a constant circumferential length and little elongation, and the rib surface is Since it is accurately molded and formed, it is possible to increase the transmission efficiency of the belt, and it has many advantages compared to conventional methods, such as being extremely simple to operate and eliminating scrap, resulting in a significant cost reduction. Further, as described above, the present invention uses the inner cylindrical drum and the outer cylindrical mold as open top and bottom types, and allows pressure fluid to be directly fed between the belt outer periphery of the inner cylindrical drum and the flexible jacket, thereby reducing wastage of pressure fluid. This allows fluid pressure to be applied efficiently, and the inner cylindrical drum can be placed with an appropriate gap between it and the outer mold, allowing air to escape from the top, making it possible for air to escape like a conventional closed type. It is extremely simple and does not require punching, making belt vulcanization easy and simple, and increasing practicality. Moreover, the apparatus for carrying out the method of the present invention has a simple mechanism, is easy to handle, is compact, and is highly suitable for obtaining the above-mentioned effective belt.
第１図は本発明に係るベルト加硫機の加硫前の
横断面図、第２図は第１図の加硫後の横断面図、
第３図は本発明加硫機に使用する外型モールドの
別の実施例を示す平面図、第４図は本発明加硫機
によつて得られたポリＶベルトの部分横断斜視
図、第５図は本発明加硫機に使用する外型モール
ドの別の実施例を示す横断面図、第６図は第５図
の外型モールドによつて得られた多リブベルトの
部分横断斜視図、第７図は第６図多リブベルトを
切断して得られたＶベルトの部分横断斜視図であ
る。
１……内型円筒ドラム、１′……内型ドラムの
凹溝、２……可撓性ジヤケツト、３……ワツパ
ー、５……未加硫ベルトスリーブ、６……外型円
筒モールド、Ａ……流体流通口。
FIG. 1 is a cross-sectional view of the belt vulcanizer according to the present invention before vulcanization, FIG. 2 is a cross-sectional view of the belt vulcanizer according to the present invention after vulcanization,
FIG. 3 is a plan view showing another embodiment of the outer mold used in the vulcanizer of the present invention, FIG. 4 is a partially cross-sectional perspective view of a poly V belt obtained by the vulcanizer of the present invention, and FIG. FIG. 5 is a cross-sectional view showing another embodiment of the outer mold used in the vulcanizer of the present invention, FIG. 6 is a partially cross-sectional perspective view of a multi-rib belt obtained by the outer mold of FIG. FIG. 7 is a partial cross-sectional perspective view of a V-belt obtained by cutting the multi-rib belt of FIG. 6. DESCRIPTION OF SYMBOLS 1...Inner cylindrical drum, 1'...Concave groove of inner drum, 2...Flexible jacket, 3...Watzpah, 5...Unvulcanized belt sleeve, 6...Outer cylindrical mold, A ...Fluid flow port.
Claims (1)
ムの外周面に円筒状可撓性ジヤケツトを介して無
端状未加硫ベルトスリーブを巻付け、次いで、こ
のスリーブを巻付けた状態のまま、内周面に周方
向に延びる複数の溝を有し、内部に加熱機構を備
えた上下開放の外型円筒モールド内部所定位置に
所要間隙を存して配置し、その後、前記内型円筒
ドラムの流体流通口に圧力流体送入機構をパイプ
ならびにジヨイントを用いて連結し、圧力流体を
前記流体流通口を通じて前記内型円筒ドラム外周
面と、円筒状可撓性ジヤケツト内面との間に送入
して前記無端状未加硫ベルトスリーブを上記可撓
性ジヤケツトを介して膨張加熱せしめ、外型円筒
モールド内周面の複数の溝部に押圧し成形するこ
とを特徴とする伝動ベルトの加硫方法。 ２ 基台上に載置固定され、内周面に周方向に延
びる複数の溝を有し、かつ内部に加熱機構を備え
た上下開放の外型円筒モールドと、前記外型円筒
モールドに対し独立し、前記基台上で外型円筒モ
ールド内部に載置固定、かつ取り出し可能であつ
て、流体流通口を設けた円筒ドラムの外周面に膨
張収縮可能な円筒状可撓性ジヤケツトを配設して
なる上下開放型の内型円筒ドラムと、前記内型円
筒ドラムの流体流通口に連結、取り外し可能な圧
力流体送入機構とからなることを特徴とする伝動
ベルト加硫機。 ３ 外型円筒モールドが軸方向に複数個に分割可
能である特許請求の範囲第２項記載の伝動ベルト
加硫機。[Claims] 1. An endless unvulcanized belt sleeve is wrapped around the outer circumferential surface of a top-bottom open inner cylindrical drum equipped with a fluid flow port via a cylindrical flexible jacket, and then this sleeve is wound. While still attached, it is placed at a predetermined position with a required gap inside a vertically open outer cylindrical mold that has a plurality of grooves extending circumferentially on the inner circumferential surface and is equipped with a heating mechanism inside, and then, A pressure fluid feeding mechanism is connected to the fluid communication port of the inner cylindrical drum using a pipe and a joint, and the pressure fluid is supplied to the outer circumferential surface of the inner cylindrical drum and the inner surface of the cylindrical flexible jacket through the fluid communication port. The transmission is characterized in that the endless unvulcanized belt sleeve is expanded and heated through the flexible jacket and pressed into a plurality of grooves on the inner peripheral surface of the outer cylindrical mold. Belt vulcanization method. 2. A vertically open outer cylindrical mold that is placed and fixed on a base, has a plurality of circumferentially extending grooves on its inner circumferential surface, and is equipped with a heating mechanism inside, and a mold that is independent of the outer cylindrical mold. and a cylindrical flexible jacket that can be placed and fixed inside the outer cylindrical mold on the base and can be taken out and expanded and contracted on the outer peripheral surface of the cylindrical drum provided with a fluid flow port. 1. A power transmission belt vulcanizer comprising: a vertically open inner cylindrical drum; and a removable pressure fluid feeding mechanism connected to a fluid flow port of the inner cylindrical drum. 3. The power transmission belt vulcanizer according to claim 2, wherein the outer cylindrical mold can be divided into a plurality of pieces in the axial direction.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12457681A JPS5825948A (en) | 1981-08-07 | 1981-08-07 | Vulcanizing method for transmission belt and belt vulcanizer |
| CA000408701A CA1182969A (en) | 1981-08-07 | 1982-08-04 | Method and apparatus for forming power transmission belts |
| AT302782A AT398054B (en) | 1981-08-07 | 1982-08-06 | METHOD AND DEVICE FOR PRODUCING POWER TRANSMISSION BELTS |
| GB08222801A GB2106443B (en) | 1981-08-07 | 1982-08-06 | Moulding power transmission belts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12457681A JPS5825948A (en) | 1981-08-07 | 1981-08-07 | Vulcanizing method for transmission belt and belt vulcanizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5825948A JPS5825948A (en) | 1983-02-16 |
| JPH0141490B2 true JPH0141490B2 (en) | 1989-09-06 |
Family
ID=14888888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12457681A Granted JPS5825948A (en) | 1981-08-07 | 1981-08-07 | Vulcanizing method for transmission belt and belt vulcanizer |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5825948A (en) |
| AT (1) | AT398054B (en) |
| CA (1) | CA1182969A (en) |
| GB (1) | GB2106443B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2119305A (en) * | 1982-04-26 | 1983-11-16 | M & G Trailers Ltd | Moulding hollow articles |
| JPS63236630A (en) * | 1987-03-25 | 1988-10-03 | Mitsuboshi Belting Ltd | Manufacture of power transmitting v belt |
| US5733399A (en) * | 1995-12-15 | 1998-03-31 | The Goodyear Tire & Rubber Company | Method and apparatus of manufacturing synchronous drive belt with teeth which are axially interlocked with a mold surface |
| ATE317076T1 (en) * | 1999-11-12 | 2006-02-15 | Gates Corp | DRIVE BELT WITH OPEN MESH TEXTILE MATERIAL IN THE BACK FABRIC FOR IMPROVED RUBBER PERSONALITY |
| JP2002331579A (en) * | 2001-05-10 | 2002-11-19 | Bridgestone Corp | Method and apparatus for manufacturing resin belt |
| US6609990B2 (en) * | 2001-07-18 | 2003-08-26 | The Gates Corporation | Power transmission belt and method |
| DE10138671A1 (en) * | 2001-08-07 | 2003-02-27 | Contitech Antriebssysteme Gmbh | Process for the production of V-belts or V-ribbed belts |
| JP4758043B2 (en) * | 2001-09-28 | 2011-08-24 | 三ツ星ベルト株式会社 | Cylindrical vulcanized body cooling device |
| JP4256204B2 (en) | 2002-06-28 | 2009-04-22 | 三ツ星ベルト株式会社 | Transmission belt manufacturing method |
| JP4485147B2 (en) * | 2002-07-30 | 2010-06-16 | 三ツ星ベルト株式会社 | V-ribbed belt manufacturing method |
| GB0703704D0 (en) * | 2007-02-27 | 2007-04-04 | Smiths Group Plc | Tubing manufacture |
| JP6396773B2 (en) * | 2014-11-28 | 2018-09-26 | 三ツ星ベルト株式会社 | Transmission belt manufacturing method |
| CN115302679B (en) * | 2022-07-01 | 2023-09-22 | 江苏鑫瑞德模具科技有限公司 | Mould for compression molding of poly V-belt |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2599046A (en) * | 1947-11-29 | 1952-06-03 | Goodrich Co B F | Vulcanizing annular articles |
| US3078205A (en) * | 1959-02-25 | 1963-02-19 | Us Rubber Co | Method of forming belt teeth in reinforced positive drive belts |
| US3964846A (en) * | 1970-12-04 | 1976-06-22 | The Gates Rubber Company | Apparatus for manufacture of power transmission belts |
| DE2220042C3 (en) * | 1972-04-24 | 1978-05-03 | Uniroyal Ag, 5100 Aachen | Method and device for cutting belts or rings from a sleeve made of an elastomer having a non-stretchable insert |
| US4027543A (en) * | 1974-10-17 | 1977-06-07 | The Gates Rubber Company | Method for curing elastomeric articles |
-
1981
- 1981-08-07 JP JP12457681A patent/JPS5825948A/en active Granted
-
1982
- 1982-08-04 CA CA000408701A patent/CA1182969A/en not_active Expired
- 1982-08-06 GB GB08222801A patent/GB2106443B/en not_active Expired
- 1982-08-06 AT AT302782A patent/AT398054B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5825948A (en) | 1983-02-16 |
| GB2106443A (en) | 1983-04-13 |
| CA1182969A (en) | 1985-02-26 |
| GB2106443B (en) | 1985-07-17 |
| AT398054B (en) | 1994-09-26 |
| ATA302782A (en) | 1994-01-15 |
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