JP5886132B2 - Tube forming machine and tube manufacturing method - Google Patents

Tube forming machine and tube manufacturing method Download PDF

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JP5886132B2
JP5886132B2 JP2012117463A JP2012117463A JP5886132B2 JP 5886132 B2 JP5886132 B2 JP 5886132B2 JP 2012117463 A JP2012117463 A JP 2012117463A JP 2012117463 A JP2012117463 A JP 2012117463A JP 5886132 B2 JP5886132 B2 JP 5886132B2
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mold
tube
hollow body
molding
molding machine
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一三 中村
一三 中村
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Bridgestone Corp
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Description

本発明は、例えばタイヤ等に用いるチューブを成型するためのチューブ成型機及びチューブの製造方法に関する。   The present invention relates to a tube forming machine for forming a tube used for, for example, a tire and a method for manufacturing the tube.

例えば、タイヤのチューブを成型するため、未加硫ゴム材料からなる中空扁平体を所定の長さに切断して、その両端面を圧着して、無端状に接合するチューブ成型機用ホルダー（チューブ成型機）が知られている（特許文献１参照）。
図７は、特許文献に記載されたものではないが、特許文献１に記載されたと同様に、中空のチューブ生生地の両端面を圧着して無端状に接合する従来のチューブ成型機を概略的に示した断面図である。
チューブ成型機１は、床面に設置された図中下側左右の成型機台１０とその上側に配置された左右のアーム２０を備え、左右の成型機台１０の対向面上側に形成された凹所１２及び左右のアーム２０の対向面下側に形成された凹所２２には、それぞれ下側及び上側の型金１５が装着されている。また、左右の成型機台１０の下側の型金１５の対向面上部及び左右のアーム２０の上側の型金１５の対向面下部には、未加硫のチューブ生地、即ちチューブ生生地ＴＲを突き合わせて圧着成型する際に、変形するチューブ生生地ＴＲに追従して変形し、それによって接合部の厚さを厚くして接合を強固にするゴムライニング３０が取り付けられている。
ここで、前記成型機台１０、下側の型金１５、ゴムライニング３０は下側の成型部２といい、また、前記アーム２０、上側の型金１５及びゴムライニング３０は上側の成型部３という。成型部２、３は下上側また左右側においてそれぞれ対向配置されている。 For example, in order to mold a tube of a tire, a hollow flat body made of an unvulcanized rubber material is cut into a predetermined length, and both end faces are crimped and joined endlessly (tube A molding machine) is known (see Patent Document 1).
Although FIG. 7 is not described in the patent document, like the patent document 1, the conventional tube molding machine which crimps | bonds the both end surfaces of a hollow tube raw material | dough and joins it endlessly is shown schematically. FIG.
The tube molding machine 1 includes a lower left and right molding machine base 10 in the figure and a left and right arm 20 disposed on the upper side of the figure, and is formed on the upper surface of the left and right molding machine bases 10. Lower and upper molds 15 are respectively mounted in the recesses 12 and the recesses 22 formed on the lower sides of the opposing surfaces of the left and right arms 20. Further, unvulcanized tube fabric, that is, tube raw fabric TR, is placed on the upper portion of the opposing surface of the mold 15 on the lower side of the left and right molding machines 10 and the lower portion of the opposing surface of the mold 15 on the upper side of the left and right arms 20. A rubber lining 30 is attached, which is deformed following the deformed tube raw material TR when it is butted and pressure-bonded, thereby increasing the thickness of the joining portion and strengthening the joining.
Here, the molding machine base 10, the lower die 15 and the rubber lining 30 are referred to as the lower molding portion 2, and the arm 20, the upper die 15 and the rubber lining 30 are referred to as the upper molding portion 3. That's it. The molding parts 2 and 3 are arranged opposite to each other on the lower upper side and the left and right sides.

このチューブ成型機１において、図示しない押出機から押し出された中空のチューブ生生地ＴＲは、図示しないカッタにより所定の長さに才断され、次に、前記才断端部同士を突き合わせて圧着成型される。
このチューブを圧着成型する際、図示しない昇降機構により上側の成型部３を下側の成型部２（成型機台１０）に向けて下降させてチューブ生生地ＴＲの端部をクランプ（挟み）し、上下左右の型金１５を、図示しないバイス手段によりゴムライニング３０を介してバイス（互いに押し付け合って圧着）する。
なお、ここで、使用する用語「クランプ」は、上側の成型部３を昇降機構により下側の成型部２に向けて下降させて、下側の成型部２の上に載置されたチューブ生生地ＴＲを挟むことを言い、用語「バイス」は、対向配置された下側の成型部２と上側の成型部３にクランプされたチューブ生生地ＴＲを互いに押し付け合って圧着することを言う。 In this tube forming machine 1, a hollow tube raw material TR extruded from an extruder (not shown) is cut to a predetermined length by a cutter (not shown), and then the cut ends are brought into contact with each other to be crimped. Is done.
When this tube is crimped, the upper molding part 3 is lowered toward the lower molding part 2 (molding machine base 10) by a lifting mechanism (not shown) to clamp (clamp) the end of the tube raw fabric TR. The upper, lower, left and right molds 15 are vise (pressed against each other) through a rubber lining 30 by vise means (not shown).
Note that the term “clamp” used here means that the upper molding portion 3 is lowered toward the lower molding portion 2 by an elevating mechanism, and the tube is placed on the lower molding portion 2. The term “vice” means that the fabric TR is sandwiched, and the tube raw fabric TR clamped by the lower molding portion 2 and the upper molding portion 3 that are arranged to face each other is pressed against each other and crimped.

具体的には、チューブ成型機１でチューブを成型する際に、下側の成型部２に載置されたチューブ生生地ＴＲを上側の成型部３と下側の成型部２でクランプする。次に、クランプしたチューブ生生地ＴＲのゴムライニング３０から突出した部分をそれに近い位置で才断してフレッシュ面を形成し、左右の才断面をバイスして、無端の中空円環状に成型する。   Specifically, when the tube is molded by the tube molding machine 1, the tube raw fabric TR placed on the lower molding unit 2 is clamped by the upper molding unit 3 and the lower molding unit 2. Next, a portion protruding from the rubber lining 30 of the clamped tube raw fabric TR is determined at a position close to that to form a fresh surface, and the right and left side cross sections are visibly molded into an endless hollow annular shape.

この圧着成型において、チューブの必要なジョイント性能を確保するためには、チューブ生生地ＴＲを適度にクランプし、かつ強くバイスすることが必要である。
同時に、左右のチューブ生生地ＴＲの位置を一致させておくことも必要である。前記位置が一致していないと、チューブ生生地ＴＲの左右の端面を接合圧着したとき、ジョイント（接合）面にそのずれによる段差ができ、これが製品の段差として残ると接合不足による接合強度不足となり、最悪の場合は市場で使用されているうちに接合面が剥がれる虞がある。 In this crimping molding, in order to ensure the necessary joint performance of the tube, it is necessary to clamp the tube raw fabric TR appropriately and vigorously vibrate.
At the same time, it is necessary to match the positions of the left and right tube raw fabrics TR. If the positions do not match, when the left and right end surfaces of the tube raw fabric TR are bonded and crimped, there will be a step due to the displacement on the joint (bonding) surface, and if this remains as a step in the product, the bonding strength will be insufficient due to insufficient bonding. In the worst case, the joint surface may peel off while being used in the market.

そこで、このような不具合の発生を防止するため、チューブ生生地ＴＲをクランプする前に十分に上下左右の型金１５の位置合わせを行い、バイス時に左右のチューブ生生地ＴＲのジョイント面が整合するように調整している。
即ち、チューブ生生地ＴＲのクランプ及びバイスを行うに先だって、左右上側の型金１５間及び左右下側の型金１５間の平行度と上下位置、上下の型金１５間の平行度と左右位置の調整を行い、位置整合させた状態を維持するように型金１５をそれぞれ型金固定部であるアーム２０及び成型機台１０に固定している。 Therefore, in order to prevent the occurrence of such a problem, the upper and lower, left and right molds 15 are sufficiently aligned before clamping the tube raw material TR, and the joint surfaces of the left and right tube raw material TR are aligned during vice. It is adjusted so that.
That is, prior to clamping and vise of the tube raw material TR, the parallelism and vertical position between the left and right upper molds 15 and between the left and right lower molds 15, and the parallelism and left and right positions between the upper and lower molds 15. Thus, the mold 15 is fixed to the arm 20 and the molding machine base 10 which are the mold fixing parts, respectively, so as to maintain the position-aligned state.

しかし、上下左右の型金１５の位置を調整すると、型金１５とチューブ成型機１（アーム２０又は成型機台１０）との間に位置ずれが生じる。この位置ずれが生じると、そのずれの大小に関わらず、図８に示すように、型金１５とアーム２０及び成型機台１０との間には必ず段差１８が発生する。この状態でチューブ生生地ＴＲをクランプすると、チューブ成型後もこの段差１８の跡が製品チューブに残り、この段差１８の跡が核となりベア（段差に空気溜まりが生じることで加硫後のチューブの表面に出る異常）やクリス（段差に起因して加硫後のチューブの表面にできる微小な皺）による製品欠陥が生じる虞がある。   However, when the positions of the upper, lower, left and right molds 15 are adjusted, a positional shift occurs between the mold 15 and the tube molding machine 1 (arm 20 or molding machine base 10). When this misalignment occurs, a step 18 is always generated between the mold 15, the arm 20, and the molding machine base 10, as shown in FIG. When the tube raw material TR is clamped in this state, the trace of the step 18 remains in the product tube even after the tube is formed, and the trace of the step 18 becomes a nucleus (air accumulation in the step causes the vulcanized tube There is a risk of product defects due to abnormalities appearing on the surface) and Chris (microscopic wrinkles formed on the surface of the tube after vulcanization due to steps).

成型されたチューブ生生地ＴＲに段差１８が残らないようにするには、圧着成型時のクランプ圧力を下げればよいが、クランプ圧力を下げるとチューブ生生地ＴＲの保持力が不足して、バイス時にチューブ生生地ＴＲの端面に十分な押圧力を作用させることができず圧着が不足する。つまり、この問題は、一方を改善すると他方が悪化するいわゆるトレードオフの関係にあり、従来のチューブ成型機では解決できていない。
そこで、従来は図９に示すように、型金１５とアーム２０又は成型機台１０との段差部分にテープＴを貼って、成型後のチューブに段差跡が残るのを防止している。また、型金１５の上下左右の調整幅が一定の範囲を越える場合には、型金１５ごと新品に変更するなどの対策も採られてきている。 In order to prevent the step 18 from remaining in the molded tube fabric TR, the clamp pressure at the time of crimping may be lowered. However, if the clamp pressure is lowered, the holding force of the tube fabric TR is insufficient, so A sufficient pressing force cannot be applied to the end face of the tube raw fabric TR, and the crimping is insufficient. In other words, this problem has a so-called trade-off relationship in which when one is improved, the other is worsened, and cannot be solved by a conventional tube molding machine.
Therefore, conventionally, as shown in FIG. 9, a tape T is applied to a step portion between the mold 15 and the arm 20 or the molding machine base 10 to prevent a step mark from remaining on the tube after molding. In addition, when the adjustment width of the upper, lower, left and right sides of the mold 15 exceeds a certain range, measures such as changing the mold 15 to a new one have been taken.

しかし、一般にテープＴでは段差１８を完全には吸収することはできず、チューブ生生地ＴＲに段差跡が発生することは避けられない。また、それだけではなく、貼ったテープＴが剥がれるとチューブ生生地ＴＲに異物となって付着することがある。テープＴを貼らずに成型すると、チューブ生生地ＴＲに型金１５の跡傷ができ外観不良となったり、成型後それが核となってベアやクリスが発生する虞がある。   However, in general, the tape T cannot absorb the step 18 completely, and it is inevitable that a step mark is generated in the tube raw fabric TR. In addition to this, when the tape T attached is peeled off, it may adhere to the tube raw material TR as a foreign material. If the tape T is molded without sticking, there is a risk that the mold raw material 15 may be scratched on the tube raw fabric TR and the appearance may be poor, or that it may become a core after molding and bear or chrysmal.

特公平２−９９３０号公報Japanese Patent Publication No. 2-9930

本発明は、前記従来のチューブ成型時における、型金の位置調整に起因する段差発生の問題に鑑みてなされたものであって、その目的は、型金の位置を調整しても、成型されたチューブに段差による形状欠陥等の発生の虞のないチューブ成型機及びチューブの製造方法を提供することである。   The present invention has been made in view of the problem of the level difference caused by the position adjustment of the mold at the time of the conventional tube molding, and the object is to be molded even if the position of the mold is adjusted. Another object of the present invention is to provide a tube molding machine and a method for manufacturing a tube that are free from the occurrence of a shape defect or the like due to a level difference in the tube.

本願発明は、それぞれ上下左右に対向配置した成型部を有し、左右それぞれの側において、前記上下に配置した成型部間に配置された所定長さの未加硫ゴム部材からなる中空体の端部を前記上下の成型部でクランプし、前記上下左右の成型部をバイス手段でバイスすることで、クランプした前記中空体の前記端部の両端面を互いに押圧接合するチューブ成型機であって、前記成型部は、型金と、前記型金を固定する型金固定部を備え、前記型金は、前記中空体の両端部の位置整合のため前記型金固定部に対して位置調整可能に固定されると共に、前記中空体の延在方向に延在し、前記型金固定部の中空体対向面を覆う型金カバー片を備え、前記型金を介して前記中空体をクランプするチューブ成型機である。
本願の他の発明は、それぞれ上下左右に対向配置した成型部の左右それぞれの側において、前記上下に配置した成型部間に所定長さの未加硫ゴム部材からなる中空体の端部を配置し、配置した前記中空体の端部を前記上下の成型部でクランプし、前記上下左右の成型部をバイス手段でバイスすることで、クランプした前記中空体の前記端部の両端面を互いに押圧接合してチューブを製造するチューブの製造方法であって、型金と型金固定部を備えた前記成型部内において、前記型金を位置調整して前記中空体の両端部を位置整合する工程と、前記位置調整した前記型金を前記型金固定部に固定する工程と、前記型金の前記中空体の延在方向に延在する型金カバー片で前記型金固定部の中空体対向面を覆い、前記型金を介して前記中空体をクランプする工程を有するチューブの製造方法である。
The present invention has a molded portion which is opposed to their respective vertical and horizontal, in the left and right sides, made of unvulcanized rubber member having a predetermined length disposed between molded portions disposed on the upper and lower clamping the end of the hollow body at the top and bottom of the molded part, the upper and lower by vice left and right molding portion vice means, tube forming machine to each other press bonding both end surfaces of said end portion of said hollow body of clamping The molding portion includes a die and a die fixing portion for fixing the die, and the die is positioned relative to the die fixing portion for position alignment of both ends of the hollow body. A mold cover piece that is fixed in a position-adjustable manner, extends in the extending direction of the hollow body, and covers the hollow body-facing surface of the mold fixing portion, and the hollow body is interposed via the mold. It is a tube forming machine to clamp.
In another aspect of the present invention, on each of the left and right sides of the molding parts arranged opposite to each other in the vertical and horizontal directions, an end of a hollow body made of an unvulcanized rubber member having a predetermined length is arranged between the molding parts arranged in the vertical direction. Then, the end portions of the arranged hollow body are clamped by the upper and lower molding portions, and the upper, lower, left and right molding portions are viseed by the vice means, thereby pressing both end surfaces of the clamped hollow body to each other. A method for manufacturing a tube for manufacturing a tube by joining, wherein in the molding part having a mold and a mold fixing part, the mold is positioned to align both ends of the hollow body; A step of fixing the position-adjusted die to the die fixing portion, and a die-covering piece extending in the extending direction of the hollow body of the die in the hollow body facing surface of the die fixing portion. And the hollow body is clamped through the mold. A method for producing a tube having a step of flop.

本発明によれば、型金は、中空体の両端の位置整合のため型金固定部に対して位置調整可能に固定されると共に、前記中空体の延在方向に延在し前記型金固定部の前記中空体対向面を覆う型金カバー片を備え、前記型金を介して前記中空体をクランプするので、型金の位置調整を行っても、従来のように型金とそれをセットする前記型金固定部との段差が前記中空体に接触する面に露出することがない。したがって、製品チューブに外観不良や成型後にベアやクリスなどの欠陥が生じる虞がない。   According to the present invention, the mold is fixed so as to be position-adjustable with respect to the mold fixing portion for position alignment of both ends of the hollow body, and extends in the extending direction of the hollow body to fix the mold. The mold body cover piece covering the hollow body facing surface of the part is clamped, and the hollow body is clamped via the mold mold. Therefore, even if the position of the mold mold is adjusted, the mold mold and the set are set as before. The step with the mold fixing part is not exposed to the surface in contact with the hollow body. Therefore, there is no possibility that a defective appearance such as a bear or a chris will occur on the product tube after molding or after molding.

第１の実施形態に係るチューブ成型機を概略的に示す断面図である。1 is a cross-sectional view schematically showing a tube forming machine according to a first embodiment. 図１に示す位置調整後の上下の型金を拡大して示した断面図である。It is sectional drawing which expanded and showed the up-and-down metal mold | die after the position adjustment shown in FIG. 第２の実施形態におけるチューブ成型機を概略的に示す断面図である。It is sectional drawing which shows schematically the tube molding machine in 2nd Embodiment. 説明を簡略的に行うため、上側の左側の成型部のみを例に採って、それぞれの構成の違いを説明する比較図である。In order to simplify the explanation, only the upper left molding part is taken as an example, and it is a comparative diagram for explaining the difference in each configuration. 第１の実施形態に係る実施品１の型金（図５Ａ）と第２の実施形態に係る実施品２のゴムライニング（図５Ｂ）の寸法を従来品と対比して示した図であり、図５Ｃは実施品１、２と対比するために従来品における型金の寸法を示した図である。It is the figure which showed the dimension of the metal mold | die (FIG. 5A) of the implementation product 1 which concerns on 1st Embodiment, and the rubber lining (FIG. 5B) of the implementation product 2 which concerns on 2nd Embodiment with respect to the conventional product, FIG. 5C is a diagram showing the dimensions of the mold in the conventional product for comparison with the working products 1 and 2. 従来品と実施品１と実施品２の図５に示す寸法を対比してまとめた表である。It is the table | surface which put together and compared the dimension shown in FIG. 5 of the conventional product, the implementation product 1, and the implementation product 2. FIG. 従来のチューブ成型機を概略的に示した断面図である。It is sectional drawing which showed the conventional tube molding machine roughly. 図７の要部を拡大した図である。It is the figure which expanded the principal part of FIG. 段差を緩和するため、型金と成型機台との段差部分にテープを貼った従来のチューブ成型機の断面図である。It is sectional drawing of the conventional tube molding machine which stuck the tape on the level | step-difference part of a metal mold | die and a molding machine stand in order to ease a level | step difference.

次に、本発明の第１の実施形態に係るチューブ成型機１について説明する。
第１の実施形態に係るチューブ成型機は、その構造は基本的に従来のものと同じであり、ただ、型金の構造のみが相違している。
即ち、図１は、第１の実施形態に係るチューブ成型機１を概略的に示す断面図であり、図１Ａは中空体であるチューブ生生地ＴＲを装着前の状態を、図１Ｂはチューブ生生地ＴＲを装着した状態を示す。なお、既に説明した従来のチューブ成型機１と同じ部分には同じ番号を付している。
第１の実施形態に係るチューブ成型機１は、床面に設置した図中左右の成型機台１０とその上側に配置された左右のアーム２０を備え、前記成型機台１０の対向面の上側には上端から下方に向かって凹所１２が形成されている。この凹所には左右下側の型金１５ａがそれぞれ装着されている。また、左右下側の型金１５ａの上部には従来と同様に互いに対向してゴムライニング３０が取り付けられている。 Next, the tube forming machine 1 according to the first embodiment of the present invention will be described.
The structure of the tube forming machine according to the first embodiment is basically the same as that of the conventional one, but only the structure of the mold is different.
That is, FIG. 1 is a cross-sectional view schematically showing a tube forming machine 1 according to the first embodiment, FIG. 1A shows a state before the tube raw fabric TR, which is a hollow body, is mounted, and FIG. A state in which the fabric TR is attached is shown. In addition, the same number is attached | subjected to the same part as the conventional tube molding machine 1 already demonstrated.
A tube molding machine 1 according to the first embodiment includes left and right molding machine tables 10 installed on the floor and left and right arms 20 arranged on the upper side thereof, and is located above the opposing surface of the molding machine table 10. A recess 12 is formed downward from the upper end. The left and right lower molds 15a are respectively mounted in the recesses. In addition, rubber linings 30 are attached to the upper parts of the left and right lower molds 15a so as to face each other as in the prior art.

また、左右の上側のアーム２０の対向面下方にも左右上側の型金１５ａを収容する凹所２２が形成されており、左右上側の型金１５ａの対向面下部にもゴムライニング３０が取り付けられている。
ここで、左右下側の型金１５ａは、図示のようにその上面に面一に形成され、チューブ生生地対向面である左右の成型機台１０の上面を覆うようにチューブ生生地ＴＲの延在方向に延在した上側の型金カバー片１５ｂを備えた側面視Ｌ字状をなし、また、左右上側の型金１５ａも、その下面に面一に形成され、チューブ生生地ＴＲの延在方向に延在し左右のアーム２０のチューブ生生地対向面である底面を覆う下側の型金カバー片１５ｂを有している。 A recess 22 for receiving the upper left and right molds 15a is also formed below the opposing surface of the left and right upper arms 20, and a rubber lining 30 is attached to the lower part of the opposing surface of the upper left and right molds 15a. ing.
Here, the left and right lower molds 15a are formed flush with the upper surface thereof as shown in the drawing, and the tube raw material TR is extended so as to cover the upper surfaces of the left and right molding machine bases 10, which are the opposite surfaces of the tube raw material. The upper die cover piece 15b extending in the present direction is L-shaped in side view, and the upper left and right die 15a are also formed flush with the lower surface of the tube raw material TR. It has a lower mold cover piece 15b extending in the direction and covering the bottom surface of the left and right arms 20 which is the tube raw fabric facing surface.

チューブ成型機１においてチューブ生生地ＴＲをクランプした状態では、図１Ｂに示すように、型金１５ａの上下の型金カバー片１５ｂがそれぞれアーム２０と成型機台１０の上又は下面全体を覆っている。そのため、チューブ生生地ＴＲは型金１５ａの上下の型金カバー片１５ｂのみに接触し、アーム２０又は成型機台１０と直接接触することはない。   When the tube raw material TR is clamped in the tube molding machine 1, as shown in FIG. 1B, the upper and lower mold cover pieces 15b of the mold 15a cover the upper and lower surfaces of the arm 20 and the molding machine base 10 respectively. Yes. Therefore, the tube raw fabric TR contacts only the upper and lower mold cover pieces 15b of the mold 15a, and does not directly contact the arm 20 or the molding machine base 10.

図２は、図１に示す位置調整後の上下の型金１５ａを拡大して示した断面図である。
型金１５ａは成型機台１０の凹所１２及びアーム２０の凹所２２内に位置調整された状態で固定されている。この図から明らかなように、型金１５ａを位置調整して、それとアーム２０及び成型機台１０との相対位置を変更しても、チューブ生生地ＴＲが接触するのは型金１５ａの接触面のみであるから、従来のようにチューブ生生地ＴＲとの接触面に段差が生じることはない。そのため、チューブ生生地ＴＲを強くクランプして強くバイスし、チューブ生生地ＴＲの接合を確実に行うことができる。また、従来のように成型後のチューブに成型跡傷やベア或いはクリスなどの製品欠陥が生じる虞がなく、また、チューブの接合部が成型跡傷や成型跡傷を原因としたベア或いはクリスなどの製品欠陥によって使用中に剥離する虞もない。 FIG. 2 is an enlarged cross-sectional view of the upper and lower molds 15a after the position adjustment shown in FIG.
The mold 15a is fixed in a state of being adjusted in the recess 12 of the molding machine base 10 and the recess 22 of the arm 20. As is apparent from this figure, even if the position of the mold 15a is adjusted and the relative position between the arm 15 and the molding machine base 10 is changed, the tube raw fabric TR contacts with the contact surface of the mold 15a. Therefore, there is no step difference on the contact surface with the tube raw fabric TR as in the prior art. Therefore, the tube raw dough TR can be strongly clamped and vice strongly, so that the tube raw dough TR can be reliably joined. In addition, there is no risk of product defects such as molding scars and bears or Chris occurring in the tube after molding as in the prior art, and the joints of the tubes bear or Chris due to molding scars or molding scars, etc. There is no risk of peeling during use due to product defects.

次に、本発明の第２の実施形態について説明する。
第１の実施形態では、チューブ生生地ＴＲの接触面から、そのチューブ成型機１の型金固定部である左右の成型機台１０及び左右のアーム２０と型金１５ａとの境目をなくすために、型金１５ａに一体に型金カバー片１５ｂを設ける構成としている。
この構成では、左右の成型機台１０と左右のアーム２０が直接チューブ生生地ＴＲに接触することはないから、成型されたチューブに段差が生じることはない。
しかし、ゴムライニング３０は左右の上側の型金１５ａ及び下側の型金１５ａに取り付けられているため、長期使用によりゴムライニング３０と型金１５ａとが剥がれてくる場合、その取り付けた境目に隙間や段差ができる可能性があり、この隙間や段差が無視できないことがあり得る。 Next, a second embodiment of the present invention will be described.
In the first embodiment, in order to eliminate the boundary between the left and right molding machine bases 10 and the left and right arms 20 and the mold 15a, which are mold fixing parts of the tube molding machine 1, from the contact surface of the tube raw fabric TR. The mold cover piece 15b is provided integrally with the mold 15a.
In this configuration, since the left and right molding machine bases 10 and the left and right arms 20 do not directly contact the tube raw material TR, there is no step in the molded tube.
However, since the rubber lining 30 is attached to the left and right upper molds 15a and the lower mold 15a, when the rubber lining 30 and the mold 15a are peeled off due to long-term use, there is a gap between the attached borders. There is a possibility that a gap or a step is formed, and the gap or the step may not be ignored.

そこで、本実施形態では、図３に示すように、このゴムライニング３０ａと上下側の型金１５ａとの境目を解消するため、第１の実施形態における型金１５ａの構成において、ゴムライニング３０ａで下側の型金１５ａのチューブ生生地対向面である上面及び上側の型金１５ａの下面全体を覆うように、ゴムライニング３０ａには、上下のゴムライニング３０ａのチューブ生生地ＴＲとの接触面から上側の型金１５ａの下面及び下側の型金１５ａの上面上に延在させたゴムライニングカバー片３０ｂが備えられている。   Therefore, in this embodiment, as shown in FIG. 3, in order to eliminate the boundary between the rubber lining 30a and the upper and lower molds 15a, the rubber lining 30a is used in the configuration of the mold 15a in the first embodiment. From the contact surface of the upper and lower rubber linings 30a with the tube raw fabric TR so as to cover the upper surface of the lower die 15a facing the tube raw fabric and the entire lower surface of the upper die 15a. A rubber lining cover piece 30b extending on the lower surface of the upper die 15a and the upper surface of the lower die 15a is provided.

本実施形態では、チューブ生生地ＴＲの端部同士を接合する際に、チューブ生生地ＴＲは、ゴムライニング３０ａのみに接触し型金１５ａに接触することはない。したがって、従来の型金１５とチューブ成型機１のアーム２０、成型機台１０との間に生じる段差の解消だけではなく、第１の実施形態における型金１５ａとゴムライニング３０との境目の影響も完全に解消される。
したがって、チューブ成型機１の型金固定部であるアーム２０、成型機台１０に対して上下左右の型金１５ａの平行度や上下左右位置を調整しても、製品チューブに成型跡傷やベア或いはクリスなどの製品欠陥が生じる虞はない。 In the present embodiment, when joining the ends of the tube raw fabric TR, the tube raw fabric TR contacts only the rubber lining 30a and does not contact the mold 15a. Therefore, not only the elimination of the level difference between the conventional mold 15 and the arm 20 of the tube molding machine 1 and the molding machine base 10, but also the influence of the boundary between the mold 15a and the rubber lining 30 in the first embodiment. Is completely resolved.
Therefore, even if the parallelism and the vertical and horizontal positions of the upper and lower and left and right molds 15a with respect to the arm 20 and the molding machine base 10 which are the mold fixing parts of the tube molding machine 1 are adjusted, molding marks and Or there is no risk of product defects such as Chris.

次に、チューブ成型機について従来品と本発明の実施品との比較結果について説明する。
図４は、説明を簡略的に行うため、上側の左側の成型部３のみを例に採って、それぞれの構成の違いを説明する比較図である。
即ち、図４Ａは従来品を、図４Ｂは第１の実施形態に係る実施品１を、図４Ｃは第２の実施形態に係る実施品２を示す。それぞれの構成は既に説明した通りである。 Next, a comparison result between the conventional product and the product of the present invention will be described for the tube molding machine.
FIG. 4 is a comparative view for explaining the difference in configuration with only the upper left molding part 3 as an example for the sake of simplicity.
4A shows a conventional product, FIG. 4B shows a product 1 according to the first embodiment, and FIG. 4C shows a product 2 according to the second embodiment. Each configuration is as described above.

図５は、図４Ａの従来品との比較に当たり、第１の実施形態に係る実施品１の型金（図５Ａ）と第２の実施形態に係る実施品２のゴムライニング（図５Ｂ）の寸法を従来品と対比して示した図であり、図５Ｃは実施品１、２と対比するために従来品における型金の寸法を示した図である。また、図６は、従来品と実施品１と実施品２の図５に示す寸法を対比してまとめた表である。
ここで、型金１５ａ（図５Ａ）、ゴムライニング（図５Ｂ）は、いずれも縦部材（型金本体；ゴムライニング本体）と横部材（型金カバー片；ゴムライニングカバー片）とからなるＬ字形断面に形成されており、実施品１及び２の型金１５ａの縦部材の図中横幅はいずれも従来品のそれに等しい。
また、型金の縦部材の右端から横部材の上側左端までの横方向長さをＷ２、型金の縦部材の右端から横部材の下側左端までの横方向長さをＷ１（実施品１；図５Ａ）又は、ゴムライニングの型金の縦部材の右端からその横部材の下側左端までの横方向長さをＷ１（実施品２；図５Ｂ）とし、かつ横部材の上面と下面間の距離（高さ；実施品１；図５Ａ）、又は型金の横部材の上面と下面間の距離＋ゴムライニングの横部材の上面と下面間の距離（高さ；実施品２；図５Ｂ）をＨ１とする。 FIG. 5 shows a comparison between the mold of the implementation product 1 according to the first embodiment (FIG. 5A) and the rubber lining of the implementation product 2 according to the second embodiment (FIG. 5B) in comparison with the conventional product of FIG. 4A. FIG. 5C is a diagram showing the dimensions of the mold in the conventional product in order to compare the dimensions with the conventional products. FIG. 6 is a table summarizing the dimensions shown in FIG. 5 for the conventional product, the working product 1 and the working product 2 in comparison.
Here, each of the mold 15a (FIG. 5A) and the rubber lining (FIG. 5B) is composed of a vertical member (mold body; rubber lining body) and a lateral member (mold cover piece; rubber lining cover piece). Each of the vertical members of the molds 15a of the products 1 and 2 is equal to that of the conventional product.
Further, the horizontal length from the right end of the vertical member of the mold to the upper left end of the horizontal member is W2, and the horizontal length from the right end of the vertical member of the mold to the lower left end of the horizontal member is W1 (practical product 1 FIG. 5A) or the lateral length from the right end of the vertical member of the rubber lining mold to the lower left end of the horizontal member is W1 (implemented product 2; FIG. 5B), and between the upper and lower surfaces of the horizontal member. Distance (height; implementation product 1; FIG. 5A), or distance between the upper surface and the lower surface of the transverse member of the mold + distance between the upper surface and the lower surface of the lateral member of the rubber lining (height; implementation product 2; FIG. 5B) ) Is H1.

その場合の寸法の比較は図６に示す通りである。即ち、図５Ｃに示すように、従来品のＷ１、Ｗ２をＡとすると、実施品１、実施品２では、Ｗ１はいずれもＡ＋７５ｍｍであり、Ｗ２はＡ＋８０ｍｍである。つまり、型金カバー片（実施品１）を加えた型金とゴムライニングカバー片（実施品２）のそれぞれのチューブ生生地ＴＲ方向に延在する長さは、下片は７５ｍｍ、上片は８０ｍｍである。また、型金カバー片（実施品１）及び型金カバー片とゴムライニングカバー片（実施形態２）の厚さ（高さ）Ｈ１は、５ｍｍである。この点、従来品はそもそも型金カバー片を備えていないから、当然のことながら０である。
つまり、実施品１及び２は左右方向の寸法は変わらず、上下方向寸法が僅かに相違する。したがって、従来のチューブ成型機に同様に適用可能である。 The comparison of dimensions in this case is as shown in FIG. That is, as shown in FIG. 5C, when W1 and W2 of the conventional product are A, in the product 1 and product 2, W1 is A + 75 mm and W2 is A + 80 mm. That is, the length extending in the tube raw material TR direction of the mold with the mold cover piece (practical product 1) and the rubber lining cover piece (practical product 2), the lower piece is 75 mm, and the upper piece is 80 mm. The thickness (height) H1 of the mold cover piece (implemented product 1) and the mold cover piece and the rubber lining cover piece (second embodiment) is 5 mm. In this respect, since the conventional product does not have a mold cover piece in the first place, it is naturally zero.
That is, the dimensions of the working products 1 and 2 are not different from each other in the left-right direction, and slightly different from each other in the vertical direction. Therefore, it can be similarly applied to a conventional tube forming machine.

なお、従来品と実施品１及び実施品２を対比したところ、型金跡については、従来品は、段差による型金跡が残っているが、実施品１及び２では前記型金跡は認められなかった。
外観不良、ベア、クリスの発生などの不良の発生については、従来では発生したが、実施品１及び２では発生しなかった。また、耐久性つまり故障発生までの稼働時間でみると、従来品に対し実施品１及び２とも勝っており、実施品２は実施品１よりも勝っていることが分かった。
その理由は実施品１では、型金跡の発生が無いために、従来品よりも型金交換の頻度が少なかったことによるものであり、実施品２では、型金１５ａとゴムライニング３０ａとの剥がれによる段差や隙間の発生が無いため、さらに型金の交換頻度が少なくなっているためである。
なお、Ｗ１、Ｗ２については、Ａ＋１５ｍｍ≦Ｗ１、Ｗ２≦Ａ＋１００ｍｍ、Ｈ１については、２ｍｍ≦Ｈ１≦１０ｍｍであれば従来のチューブ成型機に容易に適用可能である。
なお、実施品１、２では、Ｗ１＝Ｗ２であっても、横部材の下面と横部材の側面が当接する角部（図５における破線内の角部）はテーパ処理でも或いはアール処理でもいずれでもよい。 In addition, when comparing the conventional product with the working product 1 and the working product 2, as for the mold trace, the conventional product still has a mold trace due to a level difference. I couldn't.
The occurrence of defects such as poor appearance, bear, and Chris occurred in the past, but did not occur in Examples 1 and 2. Further, in terms of durability, that is, the operation time until the occurrence of failure, it was found that the implementation products 1 and 2 were superior to the conventional product, and the implementation product 2 was superior to the implementation product 1.
The reason for this is that in the embodiment product 1, there is no generation of mold marks, and therefore the frequency of replacement of the mold is less than in the conventional product. In the embodiment product 2, the die 15a and the rubber lining 30a This is because there are no steps or gaps due to peeling, and the frequency of replacement of molds is further reduced.
For W1 and W2, A + 15 mm ≦ W1, W2 ≦ A + 100 mm, and for H1, 2 mm ≦ H1 ≦ 10 mm can be easily applied to a conventional tube molding machine.
In the working products 1 and 2, even when W1 = W2, the corner (the corner in the broken line in FIG. 5) where the lower surface of the horizontal member abuts the side surface of the horizontal member is either tapered or rounded. But you can.

以上で説明した第１及び第２の実施形態によれば、左右上下の型金の位置を微調整しても、チューブ生生地に段差が発生することがなく、したがって製品チューブの外観不良や、ベア、又はクリスなどの欠陥が生じる虞はない。また、段差部にテープを貼るなどの措置も不要であるから、従来のチューブ成型機に比べてその作業性も向上する。さらに、型金の微調整の範囲に関係なく、従来のように型金を新調する必要もないからコストも低減できる。   According to the first and second embodiments described above, even if the positions of the left and right and upper and lower molds are finely adjusted, there is no level difference in the tube raw material, and thus the appearance of the product tube is poor, There is no risk of defects such as bear or Chris. Moreover, since measures such as attaching a tape to the stepped portion are unnecessary, the workability is improved as compared with the conventional tube forming machine. In addition, regardless of the range of fine adjustment of the mold, it is not necessary to renew the mold as in the conventional case, so that the cost can be reduced.

１・・・チューブ成型機、１０・・・成型機台、１２・・・凹所、１５、１５ａ・・・型金、１５ｂ・・・型金カバー片、１８・・・段差、２０・・・アーム、２２・・・凹所、３０、３０ａ・・・ゴムライニング、３０ｂ・・・ゴムライニングカバー片、Ｔ・・・テープ、ＴＲ・・・チューブ生生地。   DESCRIPTION OF SYMBOLS 1 ... Tube molding machine, 10 ... Molding machine stand, 12 ... Recess, 15, 15a ... Mold, 15b ... Mold cover piece, 18 ... Step, 20 ... -Arm, 22 ... recess, 30, 30a ... rubber lining, 30b ... rubber lining cover piece, T ... tape, TR ... tube raw fabric.

Claims (7)

それぞれ上下左右に対向配置した成型部を有し、左右それぞれの側において、前記上下に配置した成型部間に配置された所定長さの未加硫ゴム部材からなる中空体の端部を前記上下の成型部でクランプし、前記上下左右の成型部をバイス手段でバイスすることで、クランプした前記中空体の前記端部の両端面を互いに押圧接合するチューブ成型機であって、
前記成型部は、型金と、前記型金を固定する型金固定部を備え、
前記型金は、前記中空体の両端部の位置整合のため前記型金固定部に対して位置調整可能に固定されると共に、前記中空体の延在方向に延在し、前記型金固定部の中空体対向面を覆う型金カバー片を備え、
前記型金を介して前記中空体をクランプするチューブ成型機。 Has a molded part which is arranged opposite it to the respectively vertical and horizontal, right and left on each side, the end of the hollow body made of unvulcanized rubber member having a predetermined length disposed between molded portions disposed on the upper and lower clamping the part at the upper and lower mold portions, said by vice in vice means vertical and horizontal molding portion, a tube molding machine to each other press bonding both end surfaces of said end portion of said hollow body of clamping,
The molding part includes a mold and a mold fixing part that fixes the mold.
The mold is fixed to the mold fixing portion so as to be position-adjustable for position alignment of both ends of the hollow body, and extends in the extending direction of the hollow body. A mold cover piece covering the opposite surface of the hollow body,
A tube molding machine for clamping the hollow body through the mold. 請求項１に記載されたチューブ成型機において、
前記型金の左右方向に対向する他の型金との対向面にゴムライニングを備え、
前記ゴムライニングは、前記中空体の延在方向に延在し前記型金の中空体対向面を覆う
ゴムライニングカバー片を備え、
前記ゴムライニングを介して前記中空体をクランプするチューブ成型機。 In the tube molding machine according to claim 1,
A rubber lining is provided on the surface facing the other mold facing the mold in the left-right direction,
The rubber lining includes a rubber lining cover piece that extends in an extending direction of the hollow body and covers a surface facing the hollow body of the mold,
A tube molding machine that clamps the hollow body via the rubber lining. 請求項１又は２に記載されたチューブ成型機において、
上側の成型部は下側の成型部に対して接離するよう駆動されるチューブ成型機。 In the tube molding machine according to claim 1 or 2,
A tube molding machine in which the upper molding part is driven so as to come in contact with and separate from the lower molding part. 請求項１ないし３のいずれかに記載されたチューブ成型機において、
上側の型金固定部はアームで構成され、かつ下側の型金固定部は成型機台で構成されて
いるチューブ成型機。 In the tube molding machine according to any one of claims 1 to 3,
A tube molding machine in which the upper mold fixing part is constituted by an arm and the lower mold fixing part is constituted by a molding machine base. 請求項１ないし４のいずれかに記載されたチューブ成型機において、
チューブはタイヤ用チューブであるチューブ成型機。 In the tube molding machine according to any one of claims 1 to 4,
Tube forming machine that is a tube for tires. それぞれ上下左右に対向配置した成型部の左右それぞれの側において、前記上下に配置した成型部間に所定長さの未加硫ゴム部材からなる中空体の端部を配置し、配置した前記中空体の端部を前記上下の成型部でクランプし、前記上下左右の成型部をバイス手段でバイスすることで、クランプした前記中空体の前記端部の両端面を互いに押圧接合してチューブを製造するチューブの製造方法であって、
型金と型金固定部を備えた前記成型部内において、前記型金を位置調整して前記中空体の両端部を位置整合する工程と、
前記位置調整した前記型金を前記型金固定部に固定する工程と、
前記型金の前記中空体の延在方向に延在する型金カバー片で前記型金固定部の中空体対向面を覆い、前記型金を介して前記中空体をクランプする工程を有するチューブの製造方法。 On the left and right sides of the molding parts arranged opposite to each other in the vertical and horizontal directions, an end of a hollow body made of an unvulcanized rubber member having a predetermined length is arranged between the molding parts arranged in the vertical direction, and the hollow body is arranged. Are clamped by the upper and lower molding parts, and the upper, lower, left and right molding parts are viced by a vice means, whereby both ends of the end of the clamped hollow body are pressed and joined together to produce a tube. A method of manufacturing a tube,
In the molding part provided with a mold and a mold fixing part, the step of adjusting the position of the mold and aligning both ends of the hollow body;
Fixing the position-adjusted mold to the mold fixing portion;
A tube having a step of covering a hollow body facing surface of the mold fixing portion with a mold cover piece extending in an extending direction of the hollow body of the mold and clamping the hollow body via the mold; Production method. 請求項６に記載されたチューブの製造方法において、
前記型金の左右方向に対向する他の型金との対向面に設けられると共に、前記中空体の延在方向に延在し前記型金の中空体対向面を覆うゴムライニングカバー片を備えたゴムライニングを介して、前記中空体をクランプする工程を有するチューブの製造方法。 In the manufacturing method of the tube described in Claim 6,
A rubber lining cover piece is provided on the surface facing the other mold facing the left and right direction of the mold and extends in the extending direction of the hollow body and covers the hollow body facing surface of the mold. A method for producing a tube, comprising a step of clamping the hollow body through a rubber lining.
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CN109130154A (en) * 2018-08-09 2019-01-04 上海宇航***工程研究所 The in-orbit drawing of thermoplastic composite forms tube-making process

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JP6590028B1 (en) * 2018-06-11 2019-10-16 横浜ゴム株式会社 Apparatus and method for joining rubber sheet members

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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JPS5334234B2 (en) * 1974-11-21 1978-09-19
JPS5856839A (en) * 1981-09-30 1983-04-04 Yokohama Rubber Co Ltd:The Tube for tire
JPH066347B2 (en) * 1986-05-14 1994-01-26 ナシヨナルタイヤ株式会社 Manufacturing method for a vehicle tire tube
JPS62288027A (en) * 1986-06-06 1987-12-14 Bridgestone Corp Tube forming device

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CN109130154A (en) * 2018-08-09 2019-01-04 上海宇航***工程研究所 The in-orbit drawing of thermoplastic composite forms tube-making process

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