WO2014069040A1 - タイヤ加硫機、および、タイヤ加硫機のメンテナンス方法 - Google Patents
タイヤ加硫機、および、タイヤ加硫機のメンテナンス方法 Download PDFInfo
- Publication number
- WO2014069040A1 WO2014069040A1 PCT/JP2013/067193 JP2013067193W WO2014069040A1 WO 2014069040 A1 WO2014069040 A1 WO 2014069040A1 JP 2013067193 W JP2013067193 W JP 2013067193W WO 2014069040 A1 WO2014069040 A1 WO 2014069040A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- guide member
- tire vulcanizer
- head
- bag head
- platen
- Prior art date
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Classifications
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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)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0645—Devices for inserting vulcanising cores, i.e. bladders, into the tyres; Closing the press in combination herewith
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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)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0662—Accessories, details or auxiliary operations
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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)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0645—Devices for inserting vulcanising cores, i.e. bladders, into the tyres; Closing the press in combination herewith
- B29D2030/0646—Attaching to, or removing the vulcanizing cores or bladders from the center mechanisms
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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)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0662—Accessories, details or auxiliary operations
- B29D2030/0663—Mould maintenance, e.g. cleaning, washing, repairing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49718—Repairing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49815—Disassembling
Definitions
- the present invention relates to a tire vulcanizer and a maintenance method for a tire vulcanizer.
- a tire vulcanizer that performs a vulcanization process of a tire in a high-pressure and high-temperature state includes a bag-like bladder that presses a tire contained in a mold from the inside. In many cases, this bladder is attached to a central mechanism provided at the center of a support that supports the lower mold. A fluid serving as a vulcanization medium such as steam, hot water, and a gas such as nitrogen can be supplied and exhausted inside the bladder through an air supply and exhaust passage formed in the central mechanism. When the tire is pressed, the bladder is swollen by the vulcanization medium (see, for example, Patent Documents 1 to 3).
- the center mechanism 130 includes a guide member 131, a bug head 137, and a center post 146.
- the guide member 131 is attached to a through hole 125 formed in the center of the support body 113.
- the bug head 137 moves up and down along the guide member 131.
- the center post 146 moves up and down in a guide hole 136 formed at the center of the bag head 137.
- An upper clamp ring (not shown) that holds the upper part of a bladder (not shown) is attached to the upper end of the center post 146. Further, a lower clamp ring (not shown) that holds the lower part of the bladder is attached to the bag head 137.
- the center post 146 constitutes a piston rod of the center post cylinder 144 disposed below the bag head 137.
- the center post 146 is connected by a screw or the like at the tip of the piston rod of the center post cylinder 144 and slides with the piston rod.
- a bead drift cylinder 141 is attached to the center post cylinder 144 via a bracket 140.
- the center post cylinder 144 by extending the center post cylinder 144, the upper end portion of the center post 146 protrudes upward from the bag head 137 and the outer diameter of the bladder is reduced. As a result, the bladder can be inserted inside the bead of the tire, or the bladder can be peeled off from the inner peripheral surface of the tire. Further, when the bead drift cylinder 141 is extended, the bag head 137 is displaced upward together with the center post 146 to press the bead portion of the vulcanized tire housed in a mold (not shown) from below. And can be released.
- the support 113 that supports the mold from below includes, for example, a lower platen 114, a support plate 116, and a heat insulating material 115.
- the lower platen 114 is a hot plate that heats the mold.
- the support plate 116 supports the lower platen 114 from below.
- the heat insulating material 115 is provided between the lower platen 114 and the support plate 116 and blocks the heat of the lower platen 114.
- the support plate 116 of the support 113 shown in FIG. 11 is provided with a piston 117 that is operated by a fluid such as air, nitrogen gas, water, or oil. By this piston 117, it is possible to press the mold which is to be displaced in the opening direction due to an increase in internal pressure or the like in the closing direction.
- the upper end portion of the guide member 131 constituting the central mechanism 130 described above has a flange portion 133 extending outward in the radial direction.
- the flange portion 133 is fixed to the peripheral edge portion of the through hole of the lower platen 114 with a bolt or the like from above.
- the guide member 131 is fixed to the support body 113.
- the guide member 131 has a small-diameter portion 135 having an inner diameter slightly larger than the outer diameter of the inner cylinder extending downward from the bag head 137, and the flange portion 133 having an inner diameter larger than the small-diameter portion 135 and formed on the upper edge.
- a large-diameter portion 134 Further, the bug head 137 has a restricting portion 170 formed on the outer peripheral surface of the upper portion thereof.
- the restricting portion 170 has an outer end portion in the radial direction that is radially outer than the inner peripheral surface of the small diameter portion 135 of the guide member 131 and slightly inward in the radial direction from the inner peripheral surface of the large diameter portion 134. It is arranged at the position. As a result, when the bag head 137 slides to the small diameter portion 135 side of the guide member 131 and reaches a predetermined lift position, the bag head 137 has a stepped portion between the small diameter portion 135 and the large diameter portion 134 of the guide member 131. The regulation part 170 hits. As a result, the displacement of the bug head 137 toward the small diameter portion 135 is restricted.
- the replacement frequency of the sealing material 123 that seals the inner and outer peripheral portions of the piston 117 may increase. This is due to the influence of heat from the lower platen 114 and the fact that the fluid is enclosed in the support plate 116, the piston 117, and the sealing material 123 and the piston 117 slides in the vertical direction.
- the support 113 when removing the components of the support 113, first, it is connected to a plurality of pipes and wires connected to the center post cylinder 144, the bead drift cylinder 141, etc., and the supply / exhaust passages 162, 163, etc. of the bag head 137. Remove multiple pipes. Next, the bag head 137, the guide member 131, the center post cylinder 144, the bead drift cylinder 141, etc. are integrally lifted as one assembly and extracted from the through hole 125. Thereafter, the lower platen 114 is removed.
- the weight of the assembly may range from several hundred kilograms to several tons or more. Therefore, it is necessary to carefully lift the work with a crane or the like, and there is a problem that the burden on the worker who performs the maintenance work is very large.
- the present invention provides a tire vulcanizer and a tire vulcanizer maintenance method capable of easily maintaining a support disposed around a central mechanism and reducing the burden on workers. To do.
- a tire vulcanizer includes a platen portion that supports a mold for vulcanization molding and includes a platen portion formed with a through hole communicating with the inside of the mold.
- a flange part is provided in an edge part, The said flange part is provided with the guide member detachably supported by the peripheral part of the said through-hole, and the bag head slidably penetrated with respect to the said guide member.
- the bug head includes a regulating member that abuts on the guide member and regulates the displacement of the bug head in the immersing direction when the bag head is immersed in a predetermined position with respect to the guide member.
- the restricting member protrudes outward from the outer peripheral surface of the bag head and is detachably attached to the outer peripheral surface.
- the restriction member in the tire vulcanizer of the first aspect may be formed in an annular shape extending around the entire circumference of the guide member.
- a groove is formed in the bag head in a circumferential direction, and the restricting member is formed of the bag head. It may be divided and formed in the circumferential direction, and the inner peripheral part of the regulating member may be arranged in the groove.
- a tire vulcanizer in which the support in the tire vulcanizer according to any one of the first to third aspects is a plate portion that supports the platen portion.
- the plate portion may include a pressing mechanism capable of pressing the platen portion.
- a tire vulcanizer maintenance method is the tire vulcanizer maintenance method according to any one of the first to fourth aspects, wherein the guide member and the bag head are used.
- a restriction releasing step of removing the restriction member from the bag head is provided.
- a guide detachment step is provided in which the flange portion of the guide member is removed from the support, and the guide member is slid toward the end of the bag head to detach the guide member from the bag head.
- a platen removing step for removing the platen portion is provided.
- the support disposed around the central mechanism can be easily maintained, and the burden on the operator can be reduced. .
- FIG. 2 is a partial cross-sectional view corresponding to FIG. 1 in a central mechanism of a general tire vulcanizer.
- FIG. 1 is a partial cross-sectional view showing the central mechanism of the tire vulcanizer of this embodiment.
- the tire vulcanizer 1 is a device that performs a vulcanization process in which a chemical reaction is generated by applying heat and pressure to an unvulcanized raw tire T.
- a mold 10 is provided that is divided and formed by a lower mold 11 and an upper mold 12 for performing sulfur molding.
- the upper mold 12 is supported by an elevating mechanism (not shown) and can be moved closer to and away from the lower mold 11 in the vertical direction.
- the lower mold 11 is disposed so as to contact a lower platen (platen portion) 14 of a support 13 that supports the mold 10 from below.
- the lower platen 14 is a hot plate that can be heated by a heat source (not shown), and can support and heat the lower mold 11 from below.
- a heat insulating material 15 that blocks the heat of the lower platen 14 from being transmitted downward
- a bottom plate portion 16 that supports the lower platen 14 and the heat insulating material 15 from below are disposed.
- the bottom plate portion 16 includes a pressing mechanism 17 that can press the lower mold 11 by moving the lower platen 14 up and down.
- the pressing mechanism 17 includes an annular plate-shaped piston portion 18 and an annular groove portion 19 into which the piston portion 18 is immersed to form a cylinder chamber.
- the working fluid does not leak into the inner peripheral inner wall 20 and the outer peripheral inner wall 21 of the groove portion 19 from between the inner peripheral surface 22a and the outer peripheral surface 22b of the piston portion 18 and the inner peripheral inner wall 20 and the outer peripheral inner wall 21 of the groove portion 19, respectively.
- a seal member 23 such as an O-ring is attached.
- the bottom plate portion 16 is provided with a supply / exhaust passage (not shown) for supplying and exhausting working fluid to and from the pressing mechanism 17, and the lower platen 14 and the piston portion 18 sandwich the heat insulating material 15.
- the bolt 24 is integrated.
- the bottom plate portion 16 is fixed to a device frame (not shown).
- a through-hole 25 communicating with the inside of the mold 10 is formed in the support 13.
- a central mechanism 30 is attached to the through hole 25.
- the central mechanism 30 includes a substantially tubular guide member 31 extending in the vertical direction.
- the guide member 31 includes a flange portion 33 that extends radially outward at an end portion thereof, more specifically, an upper end portion 32.
- a stepped portion 26 is formed on the periphery of the through hole 25 on the upper surface 14 a side of the lower platen 14 described above.
- the flange portion 33 is fitted to the step portion 26 of the lower platen 14 and fastened to the lower platen 14 by a bolt 27 so as to be detachable.
- the guide member 31 includes a large-diameter portion 34 in which the flange portion 33 is formed, and a small-diameter portion 35 that is formed to be slightly smaller in diameter below the large-diameter portion 34.
- the guide member 31 is attached so as to extend below the support 13 in the vertical direction.
- the inner cylinder 38 is slidably inserted in the guide member 31.
- the inner cylinder 38 is formed in a substantially cylindrical shape having an outer diameter slightly smaller than the inner diameter of the small diameter portion 35 described above.
- a substantially cylindrical bag head 37 is integrally attached to the upper side of the inner cylinder 38 so that the inner cylinder 38 and the axis of each other are continuous.
- a bracket 40 that extends toward both radially outer sides of the inner cylinder 38 is attached to the lower end surface 39 of the inner cylinder 38.
- a bead drift cylinder 41 is attached to the symmetrical position outside the inner cylinder 38 via the bracket 40.
- the bead drift cylinder 41 includes a rod portion 42 and a cylinder portion 43.
- the bead drift cylinder 41 includes a rod flange 81 at the upper portion of the cylinder portion 43.
- the rod flange 81 is fixed to a plate 83 disposed above the plurality of fastening parts 82.
- the lower ends of a plurality of rods 84 are fixed to the plate 83 via fastening parts 85.
- the upper ends of these rods 84 are respectively screwed into the bottom plate portion 16 and fixed to the bottom plate portion 16.
- a screw 86 is formed at the upper end of the rod portion 42.
- the screws 86 formed in the rod portions 42 are inserted into the through holes 87 formed in the bracket 40.
- Nuts 88 are attached to these screws 86 so as to sandwich the bracket 40 from above and below.
- the bracket 40 and the rod portion 42 of the bead drift cylinder 41 are fixed.
- the inner cylinder 38 of the bag head 37 slides upward along the guide member 31 by driving the bead drift cylinder 41 in the extending direction. Further, the bead drift cylinder 41 is driven in the compression direction, so that the inner cylinder 38 of the bag head 37 slides downward along the guide member 31.
- a center post cylinder 44 is attached to the lower part of the inner cylinder 38.
- the center post cylinder 44 includes a cylinder part 45 and a center post part 46, and the upper part of the cylinder part 45 is fixed to the lower part of the inner cylinder 38 via the bracket 40.
- the center post portion 46 constitutes a piston rod of the center post cylinder 44. Or it connects with the front-end
- the length protruding above the center post portion 46 can be changed by driving the center post cylinder 44 to extend and contract.
- a bladder 50 is attached to the upper portion of the bug head 37 for pressing the raw tire T against the mold 10 from the inside during vulcanization molding. More specifically, a substantially annular clamp ring 53 is engaged with the peripheral edge 52 of the lower opening 51 of the bladder 50. Further, the clamp ring 53 is screwed into a male screw portion 54 formed on the upper outer peripheral surface of the bag head 37, so that the peripheral portion 52 of the lower opening 51 of the bladder 50 is attached to the bag head 37.
- a lower bead ring 56 that supports the bead portion 55 of the green tire T from below is attached to the outer side in the circumferential direction of the clamp ring 53. The clamp ring 53 and the lower bead ring 56 are moved up and down together with the bag head 37.
- a seal member S is mounted between the clamp ring 53 and the bag head 37 so that fluid does not leak outside.
- a substantially disc-shaped clamp ring 59 is engaged with the peripheral portion 58 of the upper opening 57 of the bladder 50, and the clamp ring 59 is attached to the upper end portion 60 of the center post portion 46 via a bolt 61.
- a supply passage 62 for supplying a fluid as a vulcanizing medium such as steam, hot water, nitrogen gas, etc., into the bladder 50, and a fluid for discharging the fluid supplied into the bladder 50 are discharged.
- a nozzle 47 to which the discharge passage 63 is connected is attached.
- An external pipe (not shown) for supplying and discharging the fluid is connected to the supply passage 62 and the discharge passage 63, respectively.
- the bladder 50 can be peeled off from the raw tire T. Further, the amount of protrusion of the bug head 37 is reduced to be equal to the width of the tire in the axial direction, and the fluid is supplied to the inside of the bladder 50 to increase the internal pressure, thereby bringing the bladder 50 into close contact with the inner surface of the raw tire T It becomes possible to press. Further, when the bag head 37 is slid upward, the bead portion 55 of the vulcanized tire is pressed from below by the lower bead ring 56 to peel the vulcanized tire from the lower mold 11. It becomes possible.
- a restriction member 70 is detachably attached to the bag head 37 by a plurality of bolts 72.
- the restricting member 70 abuts on the guide member 31 and restricts the displacement of the bug head 37 in the immersion direction when the bug head 37 is immersed to a predetermined lift position set in advance with respect to the guide member 31.
- the regulating member 70 is divided into a plurality of, more specifically, two divided pieces 71 in the circumferential direction of the guide member 31.
- an annular groove 73 for attaching the regulating member 70 is formed on the entire circumference in the circumferential direction.
- the split piece 71 has a radially inner diameter portion (inner circumferential portion) 74 fitted in the annular groove 73, and a radially outer diameter portion 75 protrudes radially outward from the outer peripheral surface of the bag head 37. ing.
- the split piece 71 has a substantially annular shape that extends around the entire circumference of the bag head 37 in a state of being attached to the bag head 37.
- the outer diameter of the substantially annular segment 71 is larger than the inner diameter of the small diameter portion 35 of the guide member 31 described above. That is, when the bug head 37 is displaced in the immersing direction to a predetermined lift position, the upper end portion of the small diameter portion 35 contacts the guide member 31 and further displacement in the immersing direction is restricted.
- the outer diameter of the divided piece 71 is slightly smaller than the inner diameter of the large diameter portion 34.
- the tire vulcanizer 1 of this embodiment has the above-described configuration, and then occurs when the maintenance method of the support 13 of the tire vulcanizer 1, particularly, the seal member 23 of the piston portion 18 is replaced. Processes related to removal of the lower platen 14, the heat insulating material 15, and the piston portion 18 will be described with reference to the drawings.
- a member such as the bladder 50 is removed from the bug head 37.
- the bead head cylinder 41 is driven to drive the bug head so that the regulating member 70 is positioned above the upper surface of the lower platen 14 in the height direction. 37 is protruded and stopped.
- the bolt 72 is removed and the restriction member 70 is detached from the bag head 37.
- the bag head 37 can be displaced relative to the guide member 31 in the immersion direction.
- the bolt 27 fixing the flange portion 33 of the guide member 31 to the lower platen 14 is removed, and the guide member 31 is slid upward to be removed from the bug head 37.
- the flange portion 33 of the guide member 31 is grasped and lifted.
- a locked portion (not shown) is previously provided on the upper surface of the flange portion 33. You may form.
- the guide member 31 can be removed from the bag head 37 more easily by locking and lifting the locking portion attached to the tip of the crane or the like to the locked portion.
- a locked portion may be formed in advance on the upper surface of the lower platen 14.
- bolt 24 can be removed easily.
- the piston part 18 is lifted, the piston part 18 is lifted while the fluid is supplied to the cylinder chamber defined by the groove part 19 and the piston part 18 so that the piston part 18 can be separated from the groove part 19 more easily. It becomes possible.
- the assembly of the support 13 and the central mechanism 30 after completion of the maintenance may be performed by performing the above steps in reverse order.
- the bug head 37 is protruded, and the restriction member 70 is removed from the outer peripheral surface of the bag head 37, whereby the bag head 37 is displaced relative to the guide member 31, that is, in the immersion direction. Relative movement is possible without limitation. Further, by removing the flange portion 33 from the support body 13, the guide member 31 can be moved upward relative to the bag head 37 and the support body 13, and the guide member 31 can be detached alone. As a result, the support 13 arranged around the central mechanism 30 can be easily maintained, and the burden on the operator can be reduced.
- the regulating member 70 is formed in an annular shape extending around the entire circumference of the bug head 37, when the regulating member 70 comes into contact with the guide member 31, the load is not concentrated on one place but on the entire circumference. It can be dispersed. As a result, it is possible to prevent the regulating member 70 and the bug head 37 from being distorted or damaged.
- the regulating member 70 is arranged in the annular groove 73 of the bug head 37, even if an axial force is applied to the regulating member 70, the regulating member 70 is supported by the annular groove 73 in the axial direction. Therefore, most of the force in the axial direction is applied to the regulating member 70, and it is possible to suppress the direct application of the shearing force to the bolt 72 for fixing the regulating member 70. As a result, it is possible to prevent damage to the bolt 72 and improve reliability. Further, since the restricting member 70 is divided and formed in the circumferential direction of the bag head 37, the divided piece 71 can be attached and detached in the radial direction, so that the attaching and detaching work can be easily performed.
- the support 13 when the support 13 has the pressing mechanism 17 and the maintenance frequency tends to be high, the support 13 can be easily removed, so that the time required for maintenance can be shortened and the apparatus can be operated for a year. You can increase the time.
- the present invention is not limited to the configuration of the above-described embodiment, and the design can be changed without departing from the gist thereof.
- the mechanism is not limited to the pressing mechanism 17 built in the bottom plate portion 16 as long as the mechanism moves the lower platen 14 up and down.
- a fluid pressure cylinder 217 that supports the lower portion of the bottom plate portion 16 and can move up and down from the lower platen 14 to the bottom plate portion 16 at the same time may be provided.
- the guide member 31 is removed by the same procedure as the above-described embodiment, and the lower platen 14, the heat insulating material 15, and the bottom plate portion 16 are integrally removed without removing all the central mechanisms. Can do. Therefore, the fluid pressure cylinder 217 can be easily accessed.
- the case where the annular groove 73 is formed on the outer periphery of the bug head 37 has been described. However, when the strength of the bolt 72 is sufficiently secured, the annular groove 73 may be omitted. . Moreover, in embodiment mentioned above, the case where the regulating member 70 was divided
- the present invention can be applied to a tire vulcanizer that does not include the pressing mechanism 17. is there.
- the support 13 when the support 13 is maintained, the support 13 may be disassembled according to the above-described procedure, whereby the support 13 can be easily maintained.
- the regulating member 70 is formed in an annular shape that extends around the entire circumference of the guide member 31 .
- the plurality of restricting members are arranged in the circumferential direction at the same position in the height direction (in other words, the axial direction). They may be provided separately.
- the present invention relates to a tire vulcanizer for performing a vulcanization process of a tire in a high pressure / high temperature state, and a maintenance method for the vulcanizer. According to the tire vulcanizer and the maintenance method for the vulcanizer of the present invention, it is possible to easily perform maintenance of the support disposed around the central mechanism, and to reduce the burden on the worker. .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
Description
本願は、2012年11月05日に、日本に出願された特願2012-243996号に基づき優先権を主張し、その内容をここに援用する。
また、ビードリフトシリンダー141を伸長させた場合には、バグヘッド137がセンターポスト146と共に上方に変位して、金型(図示せず)内に収容された加硫済みタイヤのビード部を下方から押圧して離型させることができる。
また、図11に示す支持体113の支持プレート116には、空気,窒素ガス、水、油等の流体により作動するピストン117が設けられている。このピストン117によって、内圧上昇等により開放方向に変位しようとする金型を閉塞方向に押圧することが可能となっている。
図1は、この実施形態のタイヤ加硫機の中心機構を示す部分断面図である。
図1に示すように、タイヤ加硫機1は、未加硫の生タイヤTに対して熱と圧力を加えることで化学反応を生じさせる加硫工程を行う装置であり、生タイヤTを加硫成型するための下金型11と上金型12とにより分割形成される金型10を備えている。上金型12は、図示しない昇降機構に支持されて、下金型11に対して上下方向で近接・離間可能になっている。下金型11は、金型10を下方から支持する支持体13の下プラテン(プラテン部)14に接するように配置されている。
中心機構30は、上下方向に延びる略管状のガイド部材31を備えている。このガイド部材31は、その端部、より具体的には、上側の端部32に、径方向外側に延びるフランジ部33を備えている。ここで、図1、図2に示すように、上述した下プラテン14の上面14a側には、貫通孔25の周縁に段差部26が形成されている。フランジ部33は、この下プラテン14の段差部26に嵌合されてボルト27により下プラテン14に着脱可能に締結されている。
また、バグヘッド37の上部には、ブラダー50内に蒸気、温水、窒素ガス等の加硫媒体である流体を供給するための供給通路62と、ブラダー50内に供給された流体を排出するための排出通路63とが接続されるノズル47が取付られている。供給通路62と排出通路63とには、上記流体を給排するための外部配管(図示せず)がそれぞれ接続されている。
図6に示すように、まず、バグヘッド37からブラダー50等の部材を取り外した状態にする。
次いで、図7に示すように、バグヘッド37を突出させる突出工程として、規制部材70が、高さ方向で下プラテン14の上面よりも上方に位置するように、ビードリフトシリンダー41を駆動してバグヘッド37を突出させて停止させる。さらに、規制解除工程として、ボルト72を取り外して、バグヘッド37から規制部材70を離脱させる。これにより、ガイド部材31に対するバグヘッド37の没入方向への相対的な変位が可能な状態となる。
メンテナンス終了後の支持体13および中心機構30の組立は、上記各工程を逆手順で行えばよい。
また、規制部材70がバグヘッド37の周方向に分割形成されていることで、分割片71を径方向で着脱することができるため、容易に着脱作業を行うことができる。
例えば、上述した実施形態では、支持体13のボトムプレート部16に押圧機構17が内蔵される場合について説明した。しかし、下プラテン14を昇降させる機構であればボトムプレート部16に内蔵される押圧機構17に限られない。例えば、図10に示すように、ボトムプレート部16の下方を支持して下プラテン14からボトムプレート部16までを同時に昇降させることが可能な流体圧シリンダー217などを設けても良い。この場合、ボルト124によって、下プラテン14、断熱材15、および、ボトムプレート部16を一体化させることが好ましい。このようにすることで、上述した実施形態と同様の手順によりガイド部材31を取り外し、中心機構を全て取り外すことなしに下プラテン14、断熱材15、および、ボトムプレート部16を一体的に取り外すことができる。そのため、容易に流体圧シリンダー217にアクセスすることができる。
また、上述した実施形態においては、規制部材70が周方向に分割形成される場合について説明した。しかし、規制部材70を、その内周側に雌ネジ部が形成された円環状に形成する一方で、バグヘッド37の外周面に雄ネジ形成して、バグヘッド37に規制部材70をねじ込んで取り付けるようにしてもよい。
13 支持体
14 下プラテン(プラテン部)
16 ボトムプレート(プレート部)
17 押圧機構
25 貫通孔
31 ガイド部材
33 フランジ部
37 バグヘッド
70 規制部材
73 環状溝(溝)
74 内径部(内周部)
Claims (5)
- 加硫成型するための金型を支持すると共に前記金型の内部に連通する貫通孔が形成されたプラテン部を備える支持体と、
端部にフランジ部を備え、前記フランジ部が前記貫通孔の周縁部に着脱可能に支持されるガイド部材と、
前記ガイド部材に対してスライド可能に挿通されるバグヘッドと、を備え、
前記バグヘッドは、
前記ガイド部材に対して予め設定された所定位置まで没入された場合に、前記ガイド部材に当接して前記バグヘッドの没入方向への変位を規制する規制部材を備え、
前記規制部材は、前記バグヘッドの外周面から外側に向かって突出するとともに、前記外周面に対して着脱可能に取り付けられるタイヤ加硫機。 - 請求項1に記載のタイヤ加硫機であって、
前記規制部材は、前記ガイド部材の全周に延びる環状に形成されるタイヤ加硫機。 - 請求項2に記載のタイヤ加硫機であって、
前記バグヘッドには、周方向に溝が形成され、
前記規制部材は、前記バグヘッドの周方向に分割形成され、前記規制部材の内周部が前記溝内に配されるタイヤ加硫機。 - 請求項1から3の何れか一項に記載のタイヤ加硫機であって、
前記支持体は、前記プラテン部を支持するプレート部を備え、前記プレート部は、前記プラテン部を押圧可能な押圧機構を備えるタイヤ加硫機。 - 請求項1から4の何れか一項に記載のタイヤ加硫機のメンテナンス方法であって、
前記ガイド部材から前記バグヘッドを突出させる突出工程と、
前記バグヘッドから規制部材を取り外す規制解除工程と、
前記ガイド部材の前記フランジ部を前記支持体から取り外し、前記ガイド部材を前記バグヘッドの端部側にスライドさせて前記バグヘッドから前記ガイド部材を離脱させるガイド離脱工程と、
前記プラテン部を取り外すプラテン取り外し工程と、を備えるタイヤ加硫機のメンテナンス方法。
Priority Applications (5)
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EP13851329.6A EP2915646B1 (en) | 2012-11-05 | 2013-06-24 | Tire vulcanizer and maintenance method of tire vulcanizer |
KR1020147016169A KR101462373B1 (ko) | 2012-11-05 | 2013-06-24 | 타이어 가황기, 및, 타이어 가황기의 메인터넌스 방법 |
CN201380004413.0A CN103998199B (zh) | 2012-11-05 | 2013-06-24 | 轮胎硫化机及轮胎硫化机的维护方法 |
US14/373,546 US8992197B2 (en) | 2012-11-05 | 2013-06-24 | Tire vulcanizer and maintenance method of tire vulcanizer |
HRP20170667TT HRP20170667T1 (hr) | 2012-11-05 | 2017-05-02 | Uređaj za vulkanizaciju gume i postupak održavanja |
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JP2012-243996 | 2012-11-05 | ||
JP2012243996A JP5259007B1 (ja) | 2012-11-05 | 2012-11-05 | タイヤ加硫機、および、タイヤ加硫機のメンテナンス方法 |
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PCT/JP2013/067193 WO2014069040A1 (ja) | 2012-11-05 | 2013-06-24 | タイヤ加硫機、および、タイヤ加硫機のメンテナンス方法 |
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US (1) | US8992197B2 (ja) |
EP (1) | EP2915646B1 (ja) |
JP (1) | JP5259007B1 (ja) |
KR (1) | KR101462373B1 (ja) |
CN (1) | CN103998199B (ja) |
HR (1) | HRP20170667T1 (ja) |
TW (1) | TWI535548B (ja) |
WO (1) | WO2014069040A1 (ja) |
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JP5259007B1 (ja) * | 2012-11-05 | 2013-08-07 | 三菱重工マシナリーテクノロジー株式会社 | タイヤ加硫機、および、タイヤ加硫機のメンテナンス方法 |
CN110239125A (zh) * | 2018-03-09 | 2019-09-17 | 四川轮胎橡胶(集团)股份有限公司 | B型轮胎定型硫化机的胶囊夹具 |
CN111253646A (zh) * | 2020-03-16 | 2020-06-09 | 深圳集智云创科技开发有限公司 | 一种应用于高温环境下的高性能密封材料制备方法 |
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-
2012
- 2012-11-05 JP JP2012243996A patent/JP5259007B1/ja not_active Expired - Fee Related
-
2013
- 2013-06-24 KR KR1020147016169A patent/KR101462373B1/ko not_active IP Right Cessation
- 2013-06-24 CN CN201380004413.0A patent/CN103998199B/zh not_active Expired - Fee Related
- 2013-06-24 US US14/373,546 patent/US8992197B2/en active Active
- 2013-06-24 WO PCT/JP2013/067193 patent/WO2014069040A1/ja active Application Filing
- 2013-06-24 EP EP13851329.6A patent/EP2915646B1/en not_active Not-in-force
- 2013-06-27 TW TW102122956A patent/TWI535548B/zh not_active IP Right Cessation
-
2017
- 2017-05-02 HR HRP20170667TT patent/HRP20170667T1/hr unknown
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JPS6218217A (ja) * | 1985-07-17 | 1987-01-27 | Bridgestone Corp | 加硫プレス機 |
JPH10156833A (ja) | 1996-12-02 | 1998-06-16 | Kobe Steel Ltd | タイヤ加硫機の中心機構 |
JPH1142645A (ja) | 1997-07-29 | 1999-02-16 | Mitsubishi Heavy Ind Ltd | タイヤ加硫機の加熱加圧媒体供給装置 |
JP2002120228A (ja) * | 2000-10-13 | 2002-04-23 | Ichimaru Giken:Kk | タイヤ加硫装置におけるバグシリンダのシリンダガイド構造 |
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JP2010241090A (ja) | 2009-04-10 | 2010-10-28 | Mitsubishi Heavy Ind Ltd | タイヤ加硫機の中心機構 |
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See also references of EP2915646A4 |
Also Published As
Publication number | Publication date |
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US20140363531A1 (en) | 2014-12-11 |
KR20140092912A (ko) | 2014-07-24 |
CN103998199A (zh) | 2014-08-20 |
CN103998199B (zh) | 2015-05-20 |
EP2915646A4 (en) | 2016-01-06 |
JP5259007B1 (ja) | 2013-08-07 |
US8992197B2 (en) | 2015-03-31 |
HRP20170667T1 (hr) | 2017-07-14 |
TW201420305A (zh) | 2014-06-01 |
TWI535548B (zh) | 2016-06-01 |
JP2014091281A (ja) | 2014-05-19 |
EP2915646A1 (en) | 2015-09-09 |
EP2915646B1 (en) | 2017-03-01 |
KR101462373B1 (ko) | 2014-11-14 |
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