JP7176930B2 - Apparatus and method for supplying rubber material - Google Patents

Apparatus and method for supplying rubber material Download PDF

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JP7176930B2
JP7176930B2 JP2018207963A JP2018207963A JP7176930B2 JP 7176930 B2 JP7176930 B2 JP 7176930B2 JP 2018207963 A JP2018207963 A JP 2018207963A JP 2018207963 A JP2018207963 A JP 2018207963A JP 7176930 B2 JP7176930 B2 JP 7176930B2
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pressure
brake
rubber material
winding
brake pressure
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JP2020075363A (en
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健一 森
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Toyo Tire Corp
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    • 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
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/24—Drums
    • B29D30/26—Accessories or details, e.g. membranes, transfer rings
    • B29D30/2607—Devices for transferring annular tyre components during the building-up stage, e.g. from the first stage to the second stage building drum

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)

Description

本開示は、ベルト等のゴム部材を供給する装置及び方法に関する。 The present disclosure relates to an apparatus and method for feeding rubber members such as belts.

空気入りタイヤの製造工程には、シート状の各種ゴム材料を成形ドラム上で貼り合わせることにより生タイヤを成形する工程がある。各種ゴム材料は、前工程で所定寸法に成形され、個別にボビンに巻き取られた後、成形工程においてボビンから引き出されて成形ドラムに供給される。 The manufacturing process of a pneumatic tire includes a process of forming a green tire by laminating various sheet-like rubber materials on a forming drum. Various rubber materials are molded to predetermined dimensions in the preceding process, individually wound around bobbins, and then pulled out from the bobbins and supplied to the molding drum in the molding process.

日本国特許公開２０１７－４２９１５号公報には、ボビンが慣性により回転し過ぎてゴム材料が必要以上に引き出されることを防止するために、ボビンの回転軸に減圧弁を用いたブレーキを設け、一定のブレーキ圧を掛けてボビンの回転を制御しながら引き出して貼り付けを行うとの記載がある。この文献では、ゴム材料の残量に応じてブレーキ圧を制御するとの記載がある。具体的には、巻き始めのゴム材料が多いときはブレーキ圧を強くし、巻き終わりのゴム材料が少ないときはブレーキ圧を低くするとのことである。 In Japanese Patent Publication No. 2017-42915, in order to prevent the rubber material from being pulled out more than necessary due to excessive rotation of the bobbin due to inertia, a brake using a pressure reducing valve is provided on the rotating shaft of the bobbin. It is described that the bobbin is pulled out and attached while controlling the rotation of the bobbin by applying a brake pressure of . This document describes that the brake pressure is controlled according to the remaining amount of rubber material. Specifically, when the amount of rubber material at the beginning of winding is large, the brake pressure is increased, and when the amount of rubber material at the end of winding is small, the brake pressure is decreased.

特開２０１７－４２９１５号公報JP 2017-42915 A

ところで、近年、スーパーシングルと呼ばれるタイヤ幅の広い重荷重用タイヤが開発されている。この種の重荷重用タイヤは、コードのタイヤ周方向に対する傾斜角度が１０度以下のコードを有するベルトが用いられる。このベルトは、従来のベルトに比べて非常に長く、巻き付け始端及び巻き付け終端が先細形状である。例えばボビンの減圧弁のブレーキ圧が一定であれば、巻き始め及び巻き終わりにおいてベルトにテンションを掛けてしまうと、延びてしまうおそれがある。かといって、ブレーキ圧を低く設定すれば、幅が大きい部位を引き出す時に必要以上に引き出され、トラブルの原因となる。 By the way, in recent years, a wide heavy-duty tire called a super single has been developed. Heavy-duty tires of this type use belts having cords with an inclination angle of 10 degrees or less with respect to the tire circumferential direction. This belt is much longer than conventional belts and tapered at the winding start and winding end. For example, if the brake pressure of the decompression valve of the bobbin is constant, the tension applied to the belt at the start and end of winding may cause the belt to stretch. On the other hand, if the brake pressure is set low, it will be pulled out more than necessary when pulling out the wide part, which will cause trouble.

本開示は、このような課題に着目してなされたものであって、その目的は、巻き付け始端及び巻き付け終端が先細形状であるシート状のゴム材料を適切に成形ドラムに供給可能なゴム材料を供給する装置及び方法を提供することである。 The present disclosure has been made with a focus on such problems, and the object thereof is to provide a rubber material that can appropriately supply a sheet-like rubber material having a tapered shape at the winding start end and the winding end end to a forming drum. It is to provide an apparatus and method for dispensing.

本開示のゴム材料を供給する装置は、
巻き付け始端及び巻き付け終端が先細形状であるシート状のゴム材料が巻き取られ、ブレーキ機構を有するボビンと、
前記ボビンから成形ドラムに前記ゴム材料を供給するために前記ブレーキ機構に付与するブレーキ圧を制御するブレーキ圧制御部と、を備え、
前記ブレーキ圧制御部は、前記成形ドラムに繰り出されている前記ゴム材料の幅に応じて前記ブレーキ圧を制御するように構成されている。 The apparatus for supplying rubber material of the present disclosure comprises:
a bobbin wound with a sheet-like rubber material tapered at the winding start end and the winding end, and having a brake mechanism;
a brake pressure control unit for controlling brake pressure applied to the brake mechanism to supply the rubber material from the bobbin to the forming drum;
The brake pressure control section is configured to control the brake pressure in accordance with the width of the rubber material fed onto the forming drum.

このように、巻き付け始端及び巻き付け終端が先細形状であるシート状のゴム材料の幅に応じてボビンのブレーキ圧を制御するので、ゴム材料が延びてしまうことや必要以上に引き出されるといった不具合を防止又は抑制することが可能となる。 In this way, the braking pressure of the bobbin is controlled according to the width of the sheet-like rubber material tapered at the winding start end and the winding end, thereby preventing the rubber material from being stretched or pulled out more than necessary. or can be suppressed.

ゴム材料を供給する装置及び成形ドラムを示す図FIG. 1 shows a device for supplying rubber material and a forming drum. ゴム材料としてのベルトを有する空気入りタイヤの構成を示す図The figure which shows the structure of the pneumatic tire which has a belt as a rubber material. ベルトの平面図及び成形ドラムに巻き付けた状態のベルトの突合せ部の位置を示す図A plan view of the belt and a view showing the location of the butts of the belt as it is wrapped around the forming drum. ブレーキ圧の変化を示す図Diagram showing changes in brake pressure ブレーキ圧の変化の変化例を示す図Diagram showing an example of changes in brake pressure

以下、本開示の一実施形態を、図面を参照して説明する。 An embodiment of the present disclosure will be described below with reference to the drawings.

［空気入りタイヤの構造］
本実施形態のゴム部材を成形ドラム３へ供給する装置及び方法について説明する。本実施形態では、ゴム部材として、図２に示す空気入りタイヤを構成するベルト９３を例に挙げて説明するが、これに限定されない。例えば、ゴム部材の巻き付け始端及び巻き付け終端が先細形状であるシート状であれば、適用可能である。 [Structure of pneumatic tire]
A device and method for supplying the rubber member of the present embodiment to the forming drum 3 will be described. In this embodiment, the belt 93 constituting the pneumatic tire shown in FIG. 2 will be described as an example of the rubber member, but the rubber member is not limited to this. For example, it is applicable if the rubber member has a sheet shape in which the winding start end and the winding end end are tapered.

まず、ベルト９３を有する空気入りタイヤの構造について説明する。図２に示すように、空気入りタイヤは、図示しない一対のビード部に巻き上げられ且つタイヤ赤道ＣＬを通る少なくとも１枚のカーカスプライ９０と、カーカスプライ９０のタイヤ径方向外側ＲＤ１に順に設けられる複数のベルト９１、９２、９３、９４、９５と、複数のベルトのタイヤ外側に配置されるトレッドゴム９６と、を有する。各ベルトは、タイヤ周方向に対して傾斜するコードを有する。本実施形態の装置１で供給されるベルト９３は、他のベルトに比べて、コードのタイヤ周方向に対する傾斜角度が最も小さい。ベルト９３は、タイヤ径方向内側から外側に向けて３番目のベルトである。図３に示すように、ベルト９３のコードのタイヤ周方向ＣＤに対する傾斜角度θは、０度を超えて且つ１０度以下であることが好ましい。本実施形態では、約６．５度であるが、これに限定されない。このように、コードの周方向ＣＤに対する傾斜角度θが鋭角であるため、ベルト９３の巻き付け始端９３ａ及び巻き付け終端９３ｂが先細形状となる。 First, the structure of the pneumatic tire having the belt 93 will be described. As shown in FIG. 2, the pneumatic tire includes at least one carcass ply 90 wound around a pair of bead portions (not shown) and passing through the tire equator CL, and a plurality of carcass plies 90 which are sequentially provided on the outer side RD1 in the tire radial direction of the carcass ply 90. and a tread rubber 96 arranged outside the tire on the plurality of belts. Each belt has cords that are inclined with respect to the tire circumferential direction. The belt 93 supplied by the device 1 of the present embodiment has the smallest inclination angle of the cord with respect to the tire circumferential direction compared to other belts. The belt 93 is the third belt from the inner side to the outer side in the tire radial direction. As shown in FIG. 3, the inclination angle θ of the cords of the belt 93 with respect to the tire circumferential direction CD is preferably greater than 0 degrees and 10 degrees or less. In this embodiment, it is about 6.5 degrees, but it is not limited to this. Since the inclination angle θ of the cord with respect to the circumferential direction CD is thus acute, the winding start end 93a and the winding end 93b of the belt 93 are tapered.

空気入りタイヤの製造方法は、図１及び図３に示すように、成形ドラム３に、一番目のベルト９１を巻き付け、その後、二番目のベルト９２を巻き付け、その後、３番目のベルト９３を巻き付ける工程を有する。図１では、ベルト９３のみを図示している。図3に示すように、ベルト９３は、巻き付け始端９３ａと巻き付け終端９３ｂとを重ねずに突合せて巻き付けられる。図３に示すように、成形ドラム３上のベルト９３の突合せ部（９３ａ，９３ｂ）は、一つであり、周方向ＣＤに連続している。成形ドラム３上の突合せ部（９３ａ，９３ｂ）の位置は、始点を０度として、終点が２７０度以上且つ４５０度以内にあればよく、更に、終点が３１５度以上４０５度以下にあることが好ましい。また、同図に示すように、ベルト９３の突合せ部（９３ａ，９３ｂ）の周方向ＣＤに沿った長さＬ１は２５５８ｍｍであり、ベルト９３の周方向ＣＤに沿った長さＬ２は５５２３ｍｍである。よって、ベルト９３の周方向ＣＤに沿った全長Ｌ２に対する突合せ部（９３ａ，９３ｂ）の長さＬ１の比（Ｌ１×２／Ｌ２）は、約９２．６％である。勿論、これに限定されず、８０％以上であればよいし、更に９０％以上であることが好ましい。 As shown in FIGS. 1 and 3, a pneumatic tire manufacturing method involves winding a first belt 91 around a forming drum 3, then winding a second belt 92, and then winding a third belt 93. have a process. In FIG. 1, only the belt 93 is illustrated. As shown in FIG. 3, the belt 93 is wound such that the winding start end 93a and the winding end 93b are not overlapped but face each other. As shown in FIG. 3, there is only one abutting portion (93a, 93b) of the belt 93 on the forming drum 3, which is continuous in the circumferential direction CD. The positions of the abutting portions (93a, 93b) on the forming drum 3 should be 270 degrees or more and 450 degrees or less with the starting point being 0 degrees, and the end point may be 315 degrees or more and 405 degrees or less. preferable. As shown in the figure, the length L1 along the circumferential direction CD of the butted portions (93a, 93b) of the belt 93 is 2558 mm, and the length L2 along the circumferential direction CD of the belt 93 is 5523 mm. . Therefore, the ratio (L1×2/L2) of the length L1 of the butted portions (93a, 93b) to the total length L2 of the belt 93 along the circumferential direction CD is approximately 92.6%. Of course, it is not limited to this, and it is sufficient if it is 80% or more, and more preferably 90% or more.

［ゴム部材を供給する装置］
図１に示すように、本実施形態の装置１は、ブレーキ機構２０を有するボビン２と、ボビン２から成形ドラム３にゴム材料（ベルト９３）を供給するためにブレーキ機構２０に付与するブレーキ圧を制御するブレーキ圧制御部４と、を有する。 [Apparatus for supplying rubber members]
As shown in FIG. 1, the apparatus 1 of this embodiment comprises a bobbin 2 having a brake mechanism 20 and a brake pressure applied to the brake mechanism 20 for supplying rubber material (belt 93) from the bobbin 2 to the forming drum 3. and a brake pressure control unit 4 for controlling the

ボビン２は、巻き付け始端９３ａ及び巻き付け終端９３ｂが先細形状であるシート状のゴム部材（ベルト９３）が巻き付けられる。ブレーキ機構２０は、減圧弁を用いたブレーキで、ブレーキ圧を付与することによりブレーキ圧に応じたブレーキ力をボビン２に与える。 The bobbin 2 is wound with a sheet-like rubber member (belt 93) having tapered ends 93a and 93b. The brake mechanism 20 is a brake using a pressure reducing valve, and applies brake pressure to the bobbin 2 according to the brake pressure.

ブレーキ圧制御部４は、成形ドラム３に繰り出されているゴム材料（ベルト９３）の幅に応じてブレーキ圧を制御するように構成されている。具体的には、図４は、縦軸がブレーキ圧［Ｍｐａ］であり、横軸が成形ドラム３に到達するゴム部材（ベルト９３）の位置である。図４に示すように、ベルト９３の幅が細い巻き付け開始時点及び巻き付け終了時点のブレーキ圧が相対的に低く、ベルト９３の幅が太い巻き付け開始時点と終了時点の中間時点のブレーキ圧が相対的に高くなるようにしている。すなわち、巻き付け開始から巻き付け終了に至るまでに、ブレーキ圧は、第１圧Ｐ１、第１圧Ｐ１よりも大きな第２圧Ｐ２、第２圧Ｐ２よりも小さな第３圧Ｐ３という順序で少なくとも複数段階変化する。本実施形態では、ベルト９３の幅が巻き付け始め側と終了側とで対称に変化するので、第１圧Ｐ１と第３圧Ｐ３を一致させているが、これに限定されない。第１圧Ｐ１と第３圧Ｐ３が一致していなくてもよい。本実施形態では、第１圧Ｐ１と第３圧Ｐ３が一致しているので、ブレーキ圧の変化は二段階であるが、これに限定されない。例えば、三回以上の段階で変かさせてもよい。本実施形態では、第１圧Ｐ１及び第３圧Ｐ３が０．０１Ｍｐａであり、第２圧Ｐ２が０．０２Ｍｐａである。この数値は一例であり、適宜変更可能である。 The brake pressure control unit 4 is configured to control the brake pressure in accordance with the width of the rubber material (belt 93 ) fed onto the forming drum 3 . Specifically, in FIG. 4 , the vertical axis represents the brake pressure [Mpa], and the horizontal axis represents the position of the rubber member (belt 93 ) reaching the forming drum 3 . As shown in FIG. 4, the brake pressure is relatively low at the start and end of winding when the width of the belt 93 is narrow, and the brake pressure is relatively low at the intermediate point between the start and end of winding when the width of the belt 93 is wide. to be as high as possible. That is, from the start of the winding to the end of the winding, the brake pressure is applied in at least multiple stages in the order of the first pressure P1, the second pressure P2 that is higher than the first pressure P1, and the third pressure P3 that is lower than the second pressure P2. Change. In the present embodiment, since the width of the belt 93 changes symmetrically between the winding start side and the winding end side, the first pressure P1 and the third pressure P3 are matched, but the present invention is not limited to this. The first pressure P1 and the third pressure P3 do not have to match. In this embodiment, since the first pressure P1 and the third pressure P3 are the same, the brake pressure changes in two steps, but the present invention is not limited to this. For example, it may be changed in three or more steps. In this embodiment, the first pressure P1 and the third pressure P3 are 0.01 MPa, and the second pressure P2 is 0.02 MPa. This numerical value is an example and can be changed as appropriate.

図５は変形例を示す。図５に示すように、ブレーキ圧が、第１圧Ｐ１から第２圧Ｐ２へ即時に切り替え、第２圧Ｐ２から第３圧Ｐ３へ即時に切り替えてもよい。しかし、ブレーキ圧を急激に切り替えれば振動が生じるため、振動及び振動による悪影響を許容できるか、圧力差が小さく振動による悪影響がでないのでれば、図５に示すようにブレーキ圧を即時にきりかえてもよい。 FIG. 5 shows a modification. As shown in FIG. 5, the brake pressure may be immediately switched from the first pressure P1 to the second pressure P2 and immediately switched from the second pressure P2 to the third pressure P3. However, if the brake pressure is suddenly switched, vibration will occur. Therefore, if the vibration and the adverse effect of the vibration can be tolerated, or if the pressure difference is small and the vibration does not cause any adverse effect, the brake pressure can be switched immediately as shown in FIG. may

本実施形態では、ブレーキ圧の切り替えによる悪影響を抑制又は防止するために、図４に示すように、ブレーキ圧は、第１圧Ｐ１から第２圧Ｐ２へ漸増し、第２圧Ｐ２から第３圧Ｐ３へ漸減することが好ましい。このようにすれば、ブレーキ圧を切り替えることによる振動が生じずに成形に悪影響を与えないからである。 In this embodiment, in order to suppress or prevent the adverse effect of switching the brake pressure, the brake pressure is gradually increased from the first pressure P1 to the second pressure P2, and then from the second pressure P2 to the third A gradual decrease to pressure P3 is preferred. This is because the switching of the brake pressure does not cause vibrations and adversely affect molding.

図４に示すように、ゴム部材（ベルト９３）の全長Ｌ２の１／４時点と３／４時点では、ブレーキ圧が変化している領域Ａｒ１，Ａｒ２であることが好ましい。ベルト６３の周方向ＣＤにおいて突合せ部が大半を占めており、突合せ部が直線状に傾斜していることから、幅がリニアに変化するからである。 As shown in FIG. 4, it is preferable that the braking pressure is changed in regions Ar1 and Ar2 at 1/4 and 3/4 of the total length L2 of the rubber member (belt 93). This is because the abutting portion occupies most of the circumferential direction CD of the belt 63, and since the abutting portion is linearly inclined, the width varies linearly.

以上のように、本実施形態のゴム部材を供給する装置１は、
巻き付け始端９３ａ及び巻き付け終端９３ｂが先細形状であるシート状のゴム材料（ベルト９３）が巻き取られ、ブレーキ機構２０を有するボビン２と、
ボビン２から成形ドラム３にゴム材料（ベルト９３）を供給するためにブレーキ機構２０に付与するブレーキ圧を制御するブレーキ圧制御部４と、を備え、
ブレーキ圧制御部４は、成形ドラム３に繰り出されているゴム材料（ベルト９３）の幅に応じてブレーキ圧を制御するように構成されている。 As described above, the device 1 for supplying a rubber member according to the present embodiment is
A bobbin 2 on which a sheet-like rubber material (belt 93) having a tapered winding start end 93a and a winding end end 93b is wound and has a brake mechanism 20;
a brake pressure control unit 4 that controls the brake pressure applied to the brake mechanism 20 to supply the rubber material (belt 93) from the bobbin 2 to the forming drum 3;
The brake pressure control unit 4 is configured to control the brake pressure in accordance with the width of the rubber material (belt 93 ) fed onto the forming drum 3 .

本実施形態のゴム材料を供給する方法は、
ブレーキ機構２０を有するボビン２から成形ドラム３に対して、巻き付け始端９３ａ及び巻き付け終端９３ｂが先細形状であるシート状のゴム材料（ベルト９３）を供給することと、
ブレーキ機構２０に付与するブレーキ圧を、成形ドラム３に繰り出されているゴム材料（ベルト９３）の幅に応じて制御することと、
を含む。 The method of supplying the rubber material of this embodiment includes:
supplying a sheet-like rubber material (belt 93) having a tapered winding start end 93a and a winding end end 93b from a bobbin 2 having a brake mechanism 20 to the forming drum 3;
Controlling the brake pressure applied to the brake mechanism 20 according to the width of the rubber material (belt 93) being paid out to the forming drum 3;
including.

このように、巻き付け始端及び巻き付け終端が先細形状であるシート状のゴム材料の幅に応じてボビンのブレーキ圧を制御するので、ゴム材料が延びてしまうことや必要以上に引き出されるといった不具合を防止又は抑制することが可能となる。 In this way, the braking pressure of the bobbin is controlled according to the width of the sheet-like rubber material tapered at the winding start end and the winding end, thereby preventing the rubber material from being stretched or pulled out more than necessary. or can be suppressed.

本実施形態において、巻き付け開始から巻き付け終了に至るまでに、ブレーキ圧は、第１圧Ｐ１、第１圧Ｐ１よりも大きな第２圧Ｐ２、第２圧Ｐ２よりも小さな第３圧Ｐ３という順序で少なくとも複数回変化する。 In this embodiment, from the start of winding to the end of winding, the brake pressure is applied in the order of first pressure P1, second pressure P2 higher than first pressure P1, and third pressure P3 lower than second pressure P2. Change at least multiple times.

巻き付け開始時点及び巻き付け終了時点においては、巻き付けの中間時点で用いる第２圧Ｐ２よりも低い第１圧Ｐ１及び第３圧Ｐ３にてブレーキ圧を制御するので、巻き付け始端９３ａ及び巻き付け終端９３ｂがテンションにより延びてしまう不具合を防止又は抑制することが可能となる。それでいて、ゴム材料の幅が広い中央段階では強いブレーキ圧にて適切にゴム材料を供給することが可能となる。 Since the brake pressure is controlled at the first pressure P1 and the third pressure P3, which are lower than the second pressure P2 used at the middle point of the winding, at the winding start point and the winding end point, the winding start point 93a and the winding end point 93b are under tension. It is possible to prevent or suppress the problem of extending due to At the middle stage where the width of the rubber material is wide, it is possible to supply the rubber material appropriately with strong brake pressure.

図４に示す実施形態において、ブレーキ圧は、第１圧Ｐ１から第２圧Ｐ２へ漸増し、第２圧Ｐ２から第３圧Ｐ３へ漸減する。 In the embodiment shown in FIG. 4, the brake pressure gradually increases from the first pressure P1 to the second pressure P2 and gradually decreases from the second pressure P2 to the third pressure P3.

このようにすれば、ブレーキ圧を切り替えることによる振動が生じずに成形に悪影響を与えないからである。 This is because the switching of the brake pressure does not cause vibrations and adversely affect molding.

図４に示す実施形態において、ゴム材料（ベルト９３）の全長の１／４巻かれた時点及び３／４巻かれた時点は、ブレーキ圧が変化する領域Ａｒ１，Ａｒ２である。 In the embodiment shown in FIG. 4, the points at which the rubber material (belt 93) is wound 1/4 and 3/4 of the total length are areas Ar1 and Ar2 where the brake pressure changes.

このようにすれば、ベルト６３の周方向ＣＤにおいて突合せ部が大半を占めており、突合せ部が直線状に傾斜していることから、幅がリニアに変化するため、適切なブレーキ圧でゴム材料（ベルト９３）を供給することが可能となる。 In this way, the abutting portion occupies most of the circumferential direction CD of the belt 63, and since the abutting portion is linearly inclined, the width changes linearly. (belt 93) can be supplied.

以上、本開示の実施形態について図面に基づいて説明したが、具体的な構成は、これらの実施形態に限定されるものでないと考えられるべきである。本開示の範囲は、上記した実施形態の説明だけではなく特許請求の範囲によって示され、さらに特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれる。 Although the embodiments of the present disclosure have been described above based on the drawings, it should be considered that the specific configurations are not limited to these embodiments. The scope of the present disclosure is indicated not only by the description of the above embodiments but also by the scope of claims, and includes all modifications within the meaning and scope equivalent to the scope of claims.

例えば、特許請求の範囲、明細書、および図面中において示した装置、システム、プログラム、および方法における動作、手順、ステップ、および段階等の各処理の実行順序は、前の処理の出力を後の処理で用いるのでない限り、任意の順序で実現できる。特許請求の範囲、明細書、および図面中のフローに関して、便宜上「まず」、「次に」等を用いて説明したとしても、この順で実行することが必須であることを意味するものではない。 For example, the execution order of each process such as actions, procedures, steps, and stages in the devices, systems, programs, and methods shown in the claims, specification, and drawings is the output of the previous process. They can be implemented in any order as long as they are not used in processing. Even if the claims, the specification, and the flow in the drawings are described using "first", "next", etc. for convenience, it does not mean that it is essential to execute in this order. .

上記の各実施形態で採用している構造を他の任意の実施形態に採用することは可能である。各部の具体的な構成は、上述した実施形態のみに限定されるものではなく、本開示の趣旨を逸脱しない範囲で種々変形が可能である。 It is possible to adopt the structure adopted in each of the above embodiments in any other embodiment. The specific configuration of each part is not limited to the above-described embodiment, and various modifications are possible without departing from the scope of the present disclosure.

９３ａ 巻き付け始端
９３ｂ 巻き付け終端
９３ ベルト（ゴム材料）
２ ボビン
２０ ブレーキ機構
３ 成形ドラム
４ ブレーキ圧制御部
Ｐ１ 第１圧
Ｐ２ 第２圧
Ｐ３ 第３圧 93a Winding start end 93b Winding end 93 Belt (rubber material)
2 bobbin 20 brake mechanism 3 forming drum 4 brake pressure control unit P1 first pressure P2 second pressure P3 third pressure

Claims (6)

巻き付け始端及び巻き付け終端が先細形状であるシート状のゴム材料が巻き取られ、ブレーキ機構を有するボビンと、
前記ボビンから成形ドラムに前記ゴム材料を供給するために前記ブレーキ機構に付与するブレーキ圧を制御するブレーキ圧制御部と、を備え、
前記ブレーキ圧制御部は、前記成形ドラムに繰り出されている前記ゴム材料の幅に応じて前記ブレーキ圧を制御するように構成されており、
巻き付け開始から巻き付け終了に至るまでに、前記ブレーキ圧は、第１圧、前記第１圧よりも大きな第２圧、前記第２圧よりも小さな第３圧という順序で少なくとも複数段階に変化する、ゴム材料を供給する装置。 a bobbin wound with a sheet-like rubber material tapered at the winding start end and the winding end, and having a brake mechanism;
a brake pressure control unit for controlling brake pressure applied to the brake mechanism to supply the rubber material from the bobbin to the forming drum;
The brake pressure control unit is configured to control the brake pressure in accordance with the width of the rubber material fed onto the forming drum ,
From the start of winding to the end of winding, the brake pressure changes in at least a plurality of steps in the order of a first pressure, a second pressure that is higher than the first pressure, and a third pressure that is lower than the second pressure . A device that feeds rubber material. 前記ブレーキ圧は、前記第１圧から前記第２圧へ漸増し、前記第２圧から前記第３圧へ漸減する、請求項１に記載の装置。 2. The apparatus of claim 1 , wherein said brake pressure gradually increases from said first pressure to said second pressure and gradually decreases from said second pressure to said third pressure. 前記ゴム材料の全長の１／４巻かれた時点及び３／４巻かれた時点は、ブレーキ圧が変化する領域である、請求項２に記載の装置。 3. The apparatus of claim 2 , wherein the 1/4 turn and 3/4 turn points of the length of the rubber material are regions of varying brake pressure. ブレーキ機構を有するボビンから成形ドラムに対して、巻き付け始端及び巻き付け終端が先細形状であるシート状のゴム材料を供給することと、
前記ブレーキ機構に付与するブレーキ圧を、前記成形ドラムに繰り出されている前記ゴム材料の幅に応じて制御することと、
を含み、
巻き付け開始から巻き付け終了に至るまでに、前記ブレーキ圧を、第１圧、前記第１圧よりも大きな第２圧、前記第２圧よりも小さな第３圧という順序で少なくとも複数段階変化させる、ゴム材料を供給する方法。 supplying a sheet-like rubber material having a winding start end and a winding end tapered from a bobbin having a brake mechanism to a forming drum;
controlling the brake pressure applied to the brake mechanism according to the width of the rubber material being paid out to the forming drum;
including
The brake pressure is changed in at least multiple stages in the order of a first pressure, a second pressure higher than the first pressure, and a third pressure lower than the second pressure from the start of winding to the end of winding. How to feed material. 前記ブレーキ圧は、前記第１圧から前記第２圧へ漸増し、前記第２圧から前記第３圧へ漸減する、請求項４に記載の方法。 5. The method of claim 4 , wherein said brake pressure gradually increases from said first pressure to said second pressure and gradually decreases from said second pressure to said third pressure. 前記ゴム材料の全長の１／４巻かれた時点及び３／４巻かれた時点は、ブレーキ圧が変化する領域である、請求項５に記載の方法。 6. The method of claim 5 , wherein the 1/4 turn and 3/4 turn points of the length of the rubber material are regions of varying brake pressure.
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