WO2015159382A1 - Dispositif et procédé de vulcanisation de pneu - Google Patents

Dispositif et procédé de vulcanisation de pneu Download PDF

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Publication number
WO2015159382A1
WO2015159382A1 PCT/JP2014/060784 JP2014060784W WO2015159382A1 WO 2015159382 A1 WO2015159382 A1 WO 2015159382A1 JP 2014060784 W JP2014060784 W JP 2014060784W WO 2015159382 A1 WO2015159382 A1 WO 2015159382A1
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WO
WIPO (PCT)
Prior art keywords
tire
holding member
segment
mold
plate
Prior art date
Application number
PCT/JP2014/060784
Other languages
English (en)
Japanese (ja)
Inventor
光夫 橋本
Original Assignee
Ｈｍｃ合同会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ｈｍｃ合同会社 filed Critical Ｈｍｃ合同会社
Priority to JP2014542607A priority Critical patent/JP5682019B1/ja
Priority to PCT/JP2014/060784 priority patent/WO2015159382A1/fr
Publication of WO2015159382A1 publication Critical patent/WO2015159382A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/20—Opening, closing or clamping
    • B29C33/202—Clamping means operating on closed or nearly closed mould parts, the clamping means being independently movable of the opening or closing means
    • 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
    • B29D30/0605—Vulcanising presses characterised by moulds integral with the presses having radially movable sectors
    • 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
    • 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
    • B29D2030/0666—Heating by using fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof

Definitions

  • the present invention relates to a tire vulcanizing apparatus and a tire vulcanizing method.
  • the outer ring provided with a tapered guide surface that guides the vertical movement of the tread mold that forms the tread portion of the tire is fixed to the installation surface, and the portion from the pair of sidewall portions of the tire to the bead portion is fixed.
  • the upper and lower side molds to be formed and the upper side mold holding member are lifted from the installation surface, and when each mold is closed, the weights of the tread mold, the upper and lower side molds, and the upper side mold holding member are respectively applied to the outer ring.
  • Patent Document 1 A tire vulcanizing apparatus for tightening a mold is known (Patent Document 1).
  • Patent Document 1 in order to obtain the mold clamping force by the weight of the tread mold, the upper and lower side molds, and the upper side mold holding member which are constituent members of the vulcanizing apparatus, a special tightening mechanism is not provided. The bending due to the internal pressure reaction force during vulcanization can be prevented.
  • An object of the present invention is to provide a tire vulcanizing apparatus and a tire vulcanizing method capable of preventing the protrusion generated in a tire after vulcanization molding.
  • the invention according to claim 2 is the tire vulcanizing apparatus according to claim 1,
  • the concave portion formed on the inner peripheral surface of the lock ring has a dimension that forms a gap with respect to the flange portion of the top plate when locked, and the flange of the top plate is applied when the tire vulcanization internal pressure is applied.
  • the portion abuts against the upper surface of the recess formed in the inner peripheral surface of the lock ring, It is characterized by that.
  • the invention according to claim 3 is the tire vulcanizing apparatus according to claim 2, A motor having a gear portion formed on the output shaft; A shaft that is non-rotatable in the axial direction on the upper surface of the upper holding member and is movable in the axial direction; A screw feed mechanism that is provided between the motor and the shaft and converts the rotational motion of the motor into linear motion of the shaft; and When the tire vulcanization internal pressure is applied, the top plate is moved to the base plate side by the screw feed mechanism to adjust the step between the tread type and the sidewall type. It is characterized by that.
  • the tire vulcanizing method is: A base plate; A plurality of segments to which a plurality of divided tread molds forming a tread portion of the tire are attached; An upper holding member and a lower holding member, to which upper and lower sidewall molds that form portions from the pair of sidewall portions of the tire to the bead portion are respectively attached; An outer ring fixed to the base plate and engaged with the segment via an inclined surface to advance and retract the segment in a radial direction; A lock ring connected to the base plate by the first connecting member and having a recess formed on the inner peripheral surface; An upper plate that slidably supports the upper surface of the segment in a radial direction; A lower plate connected to the upper plate by a second connecting member and holding the lower surface of the lower holding member; A top plate that holds the upper surface of the upper holding member and has a flange formed on the outer periphery; A heating / pressurizing medium supply means for supplying a heating / pressurizing medium
  • FIG. 2 is a schematic diagram for explaining the force that the internal pressure generated during vulcanization acts on each component of the tire vulcanizing apparatus 1. It is a longitudinal cross-sectional view at the time of mold closing of the tire vulcanizing apparatus 1A according to the second embodiment. It is a longitudinal cross-sectional view at the time of mold opening of the tire vulcanizing apparatus 1A according to the second embodiment. It is a cross-sectional schematic diagram explaining adjustment of the interference (G) of the upper side mold Mb by a screw feed mechanism.
  • G interference
  • FIG. 1 is a longitudinal sectional view of the tire vulcanizing device 1 according to this embodiment when the mold is closed.
  • the overall configuration and operation of the tire vulcanizing apparatus 1 will be described with reference to the drawings.
  • the tire vulcanizing apparatus 1 includes a fixed base 10 on which a mold container 20 in which a tire vulcanizing split mold M is installed is configured.
  • the mold M includes a tread mold Ma divided into a plurality of parts to form a tread part of the tire, an upper side mold Mb and a lower side mold Mc that form a part from a pair of sidewall parts of the tire to a bead part. It consists of.
  • the mold container 20 includes a plurality of segments 22 to which a tread mold Ma is attached, an upper platen 23 as an example of an upper holding member to which an upper side mold Mb is attached, and an example of a lower holding member to which a lower side mold Mc is attached. And a lower platen 24.
  • a lower side mold Mc is attached to the upper surface of the lower platen 24, and the lower surface is supported by the lower plate 28.
  • An upper side mold Mb is attached to the lower surface of the upper platen 23, and the upper surface is held by the top plate 26.
  • the segment 22 has a surface on which the tread mold Ma is mounted on the inner peripheral side, and a tapered surface 22a whose diameter is increased upward is formed on the outer peripheral surface, and is divided into a plurality in the circumferential direction.
  • An outer ring 25 is disposed on the outer side of the segment 22.
  • the outer ring 25 has a tapered surface 25 a that engages with the tapered surface 22 a of the segment 22 on the inner periphery, and is fixed to the base plate 21.
  • a segment support plate 29 as an example of an upper plate is arranged connected to the lower plate 28 via a rod R ⁇ b> 2 as an example of a second connecting member.
  • a sliding member S is provided on the lower surface of the segment support plate 29 and the upper surface of the lower platen 24, and the segment 22 is supported to be slidable in the radial direction.
  • the disc-shaped top plate 26 that holds the upper platen 23 and the upper side mold Mb has a flange portion 26a on the outer peripheral surface.
  • the flange portion 26a may be integrally formed on the outer peripheral surface of the top plate 26, or may be attached as a separate ring member.
  • a lock ring 27 having a concave portion 27a formed on the inner peripheral surface is connected to the base plate 21 via a rod R1 as an example of a first connecting member.
  • a cylinder 30 that is operated by a fluid pressure that moves the lower side mold Mc up and down is disposed below the base plate 21, a cylinder 30 that is operated by a fluid pressure that moves the lower side mold Mc up and down is disposed.
  • the piston rod 30a in the cylinder 30 penetrates the base plate 21 vertically and is in contact with the lower end surface of the lower plate 28, and the lower side mold Mc can be raised and lowered by raising and lowering the piston.
  • the upper platen 23 and the lower platen 24 are provided with medium chambers 23a and 24a to which a high-temperature and high-pressure vulcanization medium is supplied during vulcanization. Further, on the upper surface of the upper platen 23 and the lower surface of the lower platen 24, heat insulating plates 23b and 24b are provided as heat insulating materials to form a heat insulating structure.
  • a central mechanism (not shown) for introducing a heating and pressurizing medium for molding and vulcanizing the tire (raw tire) T from the inside is installed.
  • FIG. 2 is a longitudinal sectional view of the tire vulcanizing apparatus 1 according to the present embodiment when the mold is opened, and FIG. 3 shows each component of the tire vulcanizing apparatus 1 with the internal pressure generated during vulcanization. It is a schematic diagram for demonstrating the force which acts on. The operation at the time of tire vulcanization of the tire vulcanizing apparatus 1 according to the first embodiment will be described with reference to the drawings.
  • the green tire T When vulcanization molding of the green tire T is performed, the green tire T is placed above the lower side mold Mc from the side by a tire carry-in device (not shown) with the mold M opened as shown in FIG. It is carried in, lowered and set on the lower side mold Mc.
  • the top plate 26 to which the upper side mold Mb is attached together with the upper platen 23 is lowered by an elevating device (not shown) of the tire vulcanizing apparatus 1 main body, and as shown in FIG.
  • the mold Mb is positioned above the lower side mold Mc.
  • the segment support plate 29 is pushed down, and the lower plate 28 supported by the cylinder 30 is lowered together with the lower side mold Mc and the lower platen 24.
  • the taper surface 22a of the segment 22 is pushed by the taper surface 25a of the outer ring 25, and the segment 22 is guided by the sliding member S provided on the lower surface of the segment support plate 29 and the upper surface of the lower platen 24, and thus in the radial direction. Move inward.
  • the upper side mold Mb is in a state of biting downward (lower side mold Mc side) by a distance corresponding to the gap A (see dimension A in FIG. 1).
  • the gap A is specifically 3 mm to 5 mm.
  • the segment 22 moved inward constitutes a mold in which the tread mold Ma attached to the segment 22 is integrally formed into a ring to form a tire tread, and is also integrated with the upper side mold Mb and the lower side mold Mc. A space for forming the green tire T is formed.
  • the bladder B is set in the mold M as the upper platen 23 is lowered and the segment 22 is moved inward.
  • a shaping gas of a predetermined pressure heated to a predetermined temperature by a heating means is supplied, and the bladder B is inflated in a toroidal shape and brought into close contact with the inner surface of the green tire T, thereby inflating the green tire T.
  • the supply of the shaping gas is stopped, a high-temperature and high-pressure heating medium is supplied into the bladder B, and the green tire T is heated while being pressed against the inner surfaces of the upper side mold Mb, the lower side mold Mc, and the tread mold Ma. Mold.
  • high-temperature steam is also supplied to the medium chambers 23 a and 24 a of the heating medium of the upper platen 23 and the lower platen 24 and the medium chamber 25 b of the outer ring 25. Therefore, heat is transmitted to the upper side mold Mb and the lower side mold Mc through the upper platen 23 and the lower platen 24, and heat is transmitted to the tread mold Ma through the outer ring 25 and the segment 22, so that the green tire T It is also heated and vulcanized from the outside.
  • the inert gas as a pressurized medium supplied into the bladder B is a high-pressure fluid of 2.0 MPa to 2.2 MPa (see P in FIG. 3).
  • the lower side mold Mc is supported by the lower platen 24 and the lower plate 28 on its lower surface.
  • the segment 22 to which the tread mold Ma is attached has a lower surface supported by the lower platen 24 via the sliding member S and an upper surface held by the segment support plate 29 via the sliding member S.
  • the segment 22 is pressed against the lower side mold Mc with a force to move inward because the tapered surface 22a is engaged with the tapered surface 25a of the outer ring 25 fixed to the base plate 21.
  • the upper side mold Mb moves upward together with the upper platen 23 and the top plate 26 at the tire vulcanization internal pressure (P) described above, and on the upper surface 26aa of the flange portion 26a of the top plate 26 and the inner peripheral surface of the lock ring 27. It is fixed when the upper surface 27aa of the formed recess 27a comes into contact.
  • the tire vulcanization internal pressure (P) continues to act on the upper side mold Mb, but is formed on the upper surface 26aa of the flange portion 26a of the top plate 26 and the inner peripheral surface of the lock ring 27.
  • a force that pushes the lock ring 27 upward acts at the contact portion of the recess 27a with the upper surface 27aa (see F2 in FIG. 3).
  • the pushing force (F2) acts to lift the base plate 21 upward via the rod R1, and the lifting force acts also on the outer ring 25 fixed to the base plate 21.
  • the segment 22 engaged with the tapered surface 25a of the outer ring 25 receives an inward force (see F3 in FIG. 3), and the tread mold Ma is in close contact with the upper side mold Mb and the lower side mold Mc. .
  • the heated and pressurized medium in the bladder B is discharged, and the lock between the flange portion 26a of the top plate 26 and the concave portion 27a formed on the inner peripheral surface of the lock ring 27 is released.
  • the top plate 26 is lifted by a detaching means (not shown) such as a crane, the upper side mold Mb and the upper platen 23 held by the top plate 26 are also moved upward, and the upper side of the mold M is opened. It becomes.
  • the piston rod 30a of the cylinder 30 is raised.
  • the lower surface 22c on the inner peripheral side of the segment 22 receives an upward force from the upper surface of the lower platen 24, so that the lower surface 22c slides on the surface of the sliding member S as shown in FIG. Meanwhile, the segment 22 moves upward on the outer peripheral side along the tapered surface 25a of the outer ring 25. As a result, the mold M is opened and the completed tire is taken out.
  • an outer ring 25 that moves the segment 22 attached with the tread mold Ma in the radial direction is fixed to the base plate 21.
  • the top plate 26 that holds the upper platen 23 to which the upper side mold Mb is attached has a flange portion 26a formed on the outer peripheral portion, and engages with a concave portion 27a of the lock ring 27 that is connected to the base plate 21 by the rod R1.
  • the lock mechanism is configured.
  • the tire vulcanization internal pressure (P) continues to act on the upper side mold Mb, but the upper surface 26aa of the flange portion 26a of the top plate 26 and the concave portion 27a formed on the inner peripheral surface of the lock ring 27.
  • a force that pushes the lock ring 27 upward acts at a contact portion with the upper surface 27aa (F2 in FIG. 3).
  • the pushing force (F2) acts to lift the base plate 21 upward via the rod R1, and the lifting force acts also on the outer ring 25 fixed to the base plate 21.
  • the segment 22 engaged with the tapered surface 25a of the outer ring 25 receives a force in the direction of moving inward (F3 in FIG. 3), and both ends of the tread mold Ma and the upper and lower side molds Mb, Mc
  • the contact portion is brought into a close contact state. That is, during tire vulcanization, the pressure to expand each mold generated by the tire vulcanization internal pressure (P) by the heated and pressurized medium supplied to the inside of the green tire T through the bladder B is applied to the segment 22.
  • the gap generated at the contact portion of each mold is suppressed, and the protrusion generated in the tire after vulcanization molding is prevented. be able to.
  • both ends of the tread mold Ma, the upper side mold Mb, and the lower side mold are used in use.
  • the contact portion with the mold Mc is brought into a close contact state by the tire vulcanization internal pressure (P), and the mold M can be manufactured at low cost.
  • the high pressure and high output weight load device (hydraulic cylinder) required in the conventional tire vulcanizing apparatus is not required between the base plate 21 and the lower plate 28, and the pressure applied to the base plate 21 is reduced.
  • the reaction force is eliminated, and the base plate 21 can be simplified and the cost can be reduced. Therefore, for example, even when a power failure occurs during tire vulcanization, the vulcanization can be continued and terminated if the internal pressure in the bladder B is maintained.
  • FIG. 4 is a longitudinal sectional view of the tire vulcanizing device 1A according to the present embodiment when the mold is closed.
  • the basic configuration of the tire vulcanizing apparatus 1A is the same as that of the tire vulcanizing apparatus 1 of the first embodiment, and the motor 40 having a gear portion 41 formed on the output shaft and the upper surface of the upper platen 23 cannot rotate in the direction around the axis.
  • the first embodiment is different from the first embodiment in that a shaft 50 fixed to the shaft 50 and a screw feed mechanism that converts the rotational motion of the motor 40 into linear motion of the shaft 50 are provided between the motor 40 and the shaft 50. .
  • a shaft 50 is fixed to the center of the upper surface of the upper platen 23 that holds the upper side mold Mb.
  • the shaft 50 has a flange 51 serving as an attachment portion to the upper platen 23 on one end side (lower side), and a cylindrical portion 53 having a trapezoidal screw 52 formed on the outer peripheral surface on the other end side.
  • a gear member 60 as a screw feed mechanism is fitted and inserted so as to be rotatable around the axis and not movable in the axial direction.
  • the gear member 60 has a gear portion 61 formed on one end side (upper side) and a screw hole 62 formed on the inner peripheral surface of the cylindrical portion on the other end side.
  • the motor 40 has a gear portion 41 formed on the output shaft, and is fixed to the upper surface of the top plate 26 by a support member (not shown). And the gear part 41 formed in the output shaft of the motor 40 and the gear part 61 of the gear member 60 mesh, and rotation of the motor 40 is transmitted as rotation of the gear member 60.
  • the gear member 60 is inserted into the center portion of the top plate 26 so as to be rotatable about the axis and not movable in the axial direction, and a screw hole 62 formed on the inner peripheral surface of the cylindrical portion has a shaft 50.
  • a screw feed mechanism is configured by screwing with a trapezoidal screw 52 formed on the outer peripheral surface of the cylindrical portion 53.
  • FIG. 5 is a longitudinal sectional view of the tire vulcanizing apparatus 1A according to the present embodiment when the mold is opened
  • FIG. 6 is a tightening margin of the upper side mold Mb by the screw feed mechanism (in FIG. It is a cross-sectional schematic diagram explaining adjustment of G reference).
  • FIG. 5 is a longitudinal sectional view of the tire vulcanizing apparatus 1A according to the present embodiment when the mold is opened
  • FIG. 6 is a tightening margin of the upper side mold Mb by the screw feed mechanism (in FIG. It is a cross-sectional schematic diagram explaining adjustment of G reference).
  • the top plate 26 holding the upper platen 23 to which the upper side mold Mb is attached is lowered together with the motor 40, the shaft 50, and the gear member 60 disposed between the motor 40 and the shaft 50, as shown in FIG.
  • the upper side mold Mb is positioned above the lower side mold Mc.
  • the flange portion 26a of the top plate 26 is rotated, the flange portion 26a engages with the concave portion 27a of the lock ring 27 and is locked with a gap A for locking, but the upper side mold Mb. Is in a state of biting downward (lower side mold Mc side) by a distance corresponding to the gap A.
  • the gap A is specifically 3 mm to 5 mm (see A in FIG. 4).
  • the segment 22 moved inward constitutes a mold in which the tread mold Ma attached to the segment 22 is integrally formed into a ring to form a tire tread, and is also integrated with the upper side mold Mb and the lower side mold Mc. A space for forming the green tire T is formed.
  • the bladder B is set in the mold M, and a heated and pressurized medium (steam, inert gas, etc.) for vulcanization is supplied into the bladder B. Is done.
  • the green tire T is applied with a tire vulcanization internal pressure (P) from the inside through the bladder B, and a force acts on the upper side mold Mb and the lower side mold Mc in a direction of widening the interval.
  • the lower side mold Mc is supported by the lower platen 24 and the lower plate 28 on its lower surface.
  • the segment 22 to which the tread mold Ma is attached has a lower surface supported by the lower platen 24 via the sliding member S and an upper surface held by the segment support plate 29 via the sliding member S.
  • the segment 22 is pressed against the lower side mold Mc with a force to move inward because the tapered surface 22a is engaged with the tapered surface 25a of the outer ring 25 fixed to the base plate 21.
  • the upper side mold Mb moves upward together with the upper platen 23 and the top plate 26 at the tire vulcanization internal pressure (P) described above, and the upper surface 26aa of the flange portion 26a of the top plate 26 and the upper surface of the concave portion 27a of the lock ring 27. It is fixed when 27aa comes into contact. In this state, the tire vulcanization internal pressure (P) continues to act so as to push the upper side mold Mb upward, and a step is likely to occur in the joining between the tread mold Ma and the upper side mold Mb.
  • the motor 40 is rotated so as to eliminate the above-described step by moving the upper side mold Mb downward against the tire vulcanization internal pressure (P), and the shaft via the gear member 60 as a screw feed mechanism. 50 is moved downward.
  • a known stepping motor is used as the motor 40, and the amount of movement of the upper side mold Mb can be adjusted by screw-feeding in pulses (see G in FIG. 6).
  • the tire vulcanizing device 1A fixes an outer ring 25 that advances and retracts a plurality of segments 22 attached with a tread mold Ma in a radial direction to a base plate 21. Yes. Further, the top plate 26 that holds the upper platen 23 to which the upper side mold Mb is attached has a flange portion 26a formed on the outer peripheral portion, and engages with a concave portion 27a of the lock ring 27 that is connected to the base plate 21 by the rod R1.
  • the lock mechanism is configured.
  • a shaft 50 is fixed to the center of the upper surface of the upper platen 23 that holds the upper side mold Mb, and a gear as a screw feed mechanism that can rotate about the axis and cannot move in the axial direction is centered on the top plate 26.
  • the member 60 is inserted.
  • the screw hole 62 is screwed with the trapezoidal screw 52 of the shaft 50 to constitute a screw feed mechanism.
  • the flange portion 26a of the top plate 26 and the concave portion 27a of the lock ring 27 are locked with a gap A for locking, and the upper side mold Mb has a distance corresponding to the gap A.
  • the upper side mold Mb has a distance corresponding to the gap A.
  • a force is applied to the upper side mold Mb and the lower side mold Mc in the direction of increasing the distance by the heating and pressurizing medium supplied to the inside of the tire via the bladder B.
  • the upper side mold Mb moves upward together with the upper platen 23 and the top plate 26, and the upper surface 26aa of the flange portion 26a of the top plate 26 and the upper surface 27aa of the concave portion 27a of the lock ring 27 contact each other. Fixed at the time.
  • the shaft 50 can be used by screwing it downward in units of pulses.
  • the contact portions between both ends of the tread mold Ma and the upper and lower side molds Mb and Mc are brought into close contact with each other by the tire vulcanization internal pressure, and the mold M can be manufactured at a low cost.

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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

L'invention concerne un dispositif et un procédé de vulcanisation de pneu pouvant empêcher l'apparition de protubérances sur un pneu après vulcanisation et moulage. Un dispositif de vulcanisation de pneu comprend : une plaque de base; des segments dans lesquels est monté un moule de bande de roulement; un élément de retenue supérieur et un élément de retenue inférieur, les éléments de retenue supérieur et inférieur étant respectivement équipés de moules de paroi latérale supérieur et inférieur; un anneau externe fixé à la plaque de base et déplaçant les segments radialement vers l'avant et vers l'arrière; un anneau de blocage raccordé à la plaque de base comportant un évidement formé dans sa surface périphérique interne; une plaque supérieure permettant de soutenir les surfaces supérieures des segments; une plaque inférieure raccordée à la plaque supérieure et retenant la surface inférieure de l'élément de retenue inférieur; une plaque supérieure permettant de retenir la surface supérieure de l'élément de retenue supérieur et comportant une section rebord formée sur sa section périphérique externe; et un moyen d'alimentation de milieu de chauffage et de pressurisation permettant d'amener un milieu de chauffage et de pressurisation dans un pneu non vulcanisé. Lorsque le moule est fermé, la section rebord de la plaque supérieure vient en prise avec l'évidement formé dans la surface périphérique interne de l'anneau de blocage, et les segments sont serrés radialement vers l'intérieur lorsqu'est appliquée une pression interne de vulcanisation du pneu.
PCT/JP2014/060784 2014-04-16 2014-04-16 Dispositif et procédé de vulcanisation de pneu WO2015159382A1 (fr)

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JP2014542607A JP5682019B1 (ja) 2014-04-16 2014-04-16 タイヤ加硫装置及びタイヤ加硫方法
PCT/JP2014/060784 WO2015159382A1 (fr) 2014-04-16 2014-04-16 Dispositif et procédé de vulcanisation de pneu

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021178463A (ja) * 2020-05-14 2021-11-18 横浜ゴム株式会社 タイヤ加硫装置および方法
CN114603754A (zh) * 2022-03-11 2022-06-10 金铁城智能科技(青岛)有限公司 一种轮胎硫化装置及其硫化工艺

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6988448B2 (ja) * 2017-12-21 2022-01-05 住友ゴム工業株式会社 タイヤ加硫装置

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Publication number Priority date Publication date Assignee Title
JPS4867375A (fr) * 1971-12-17 1973-09-14
JPH08309754A (ja) * 1995-05-15 1996-11-26 Bridgestone Corp タイヤ加硫金型の締付け装置
JP2003236849A (ja) * 2002-02-19 2003-08-26 Bridgestone Corp タイヤ加硫方法および装置
JP2006044034A (ja) * 2004-08-04 2006-02-16 Bridgestone Corp タイヤ加硫装置

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JPH08309754A (ja) * 1995-05-15 1996-11-26 Bridgestone Corp タイヤ加硫金型の締付け装置
JP2003236849A (ja) * 2002-02-19 2003-08-26 Bridgestone Corp タイヤ加硫方法および装置
JP2006044034A (ja) * 2004-08-04 2006-02-16 Bridgestone Corp タイヤ加硫装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021178463A (ja) * 2020-05-14 2021-11-18 横浜ゴム株式会社 タイヤ加硫装置および方法
JP7469638B2 (ja) 2020-05-14 2024-04-17 横浜ゴム株式会社 タイヤ加硫方法
CN114603754A (zh) * 2022-03-11 2022-06-10 金铁城智能科技(青岛)有限公司 一种轮胎硫化装置及其硫化工艺
CN114603754B (zh) * 2022-03-11 2023-09-29 金铁城智能科技(青岛)有限公司 一种轮胎硫化装置及其硫化工艺

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