WO2013157428A1 - Presse à vulcaniser les pneumatiques - Google Patents

Presse à vulcaniser les pneumatiques Download PDF

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Publication number
WO2013157428A1
WO2013157428A1 PCT/JP2013/060615 JP2013060615W WO2013157428A1 WO 2013157428 A1 WO2013157428 A1 WO 2013157428A1 JP 2013060615 W JP2013060615 W JP 2013060615W WO 2013157428 A1 WO2013157428 A1 WO 2013157428A1
Authority
WO
WIPO (PCT)
Prior art keywords
guide
mold
crank
lower mold
tire
Prior art date
Application number
PCT/JP2013/060615
Other languages
English (en)
Japanese (ja)
Inventor
安弘 渡部
Original Assignee
住友ゴム工業株式会社
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 住友ゴム工業株式会社 filed Critical 住友ゴム工業株式会社
Priority to CN201380002461.6A priority Critical patent/CN103717367A/zh
Publication of WO2013157428A1 publication Critical patent/WO2013157428A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • 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
    • 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 vulcanizer that can perform clamping of upper and lower mold parts uniformly and accurately over a long period of time and can stably secure a large clamping force.
  • this tire vulcanizer supports a lower table b1 to which a lower mold part a1 is attached, an upper table b2 to which an upper mold part a2 is attached, and the upper table b2 to be movable up and down. Elevating means c.
  • a crank mechanism e is employed as the elevating means c.
  • the crank mechanism e is connected to a crank gear e1 pivotally supported by both side frames d, a vertical side groove e2 provided in the side frames d, and the upper table b2. It includes a slider e3 that slides up and down in the groove e2, and a link e4 that connects the crank gear e1 and the slider e3.
  • the power from the motor m is transmitted to the upper table b2 via the crank gear e1, the link e4, and the slider e3, and the upper table b2 moves up and down together with the upper mold part a2.
  • the mold is pressed further downward by the toggle action of the crank mechanism e after the upper and lower mold parts a1 and a2 are in contact.
  • the upper and lower mold parts a1 and a2 are tightened.
  • Patent Document 2 proposes a tire vulcanizer having a structure in which a long cylinder is used to lift and hold an upper table so that it can be raised and lowered.
  • this device has a large apparatus height, which leads to an increase in the size of the apparatus.
  • the present invention can reduce the size of the device, suppress early wear of the bearing portion in the crank mechanism, suppress backlash, maintain uniform and high-precision tightening over a long period of time, and provide a large tightening force. It aims at providing the tire vulcanizer which can be ensured stably.
  • the invention of claim 1 of the present application is directed to a lower table to which a lower mold part is attached, an upper table to which an upper mold part is attached, and to support the upper table so as to be movable up and down and to a lowered position.
  • Elevating means for closing the upper and lower mold parts, and mold clamping means for fastening the upper and lower mold parts at the lowered position
  • the elevating means comprises a crank mechanism, And the crank mechanism is A crank that can rotate around its axis; A guide guide having a vertical guide portion extending in the vertical direction; A slider attached to the upper table and guided by the guide guide; A lower end portion is pivotally supported by a first pivot point provided on the crank and at a position different from the axis, and an upper end portion is pivotally supported by a second pivot point provided on the slider.
  • the mold clamping means comprises a connecting tool for connecting the upper table and the lower table at the lowered position, and a pressurizing tool for fastening the upper and lower mold parts
  • the connector is A plurality of vertical and tie rods having one end fixed to one of the lower table or the upper table; A tie rod clamp that attaches to the other table and clamps the other end of the tie rod in the lowered position;
  • the pressurizing tool is An annular groove recessed in the upper surface of the lower table and concentric with the lower mold part; An annular pressure plate disposed on the upper surface of the annular groove so as to be slidable in the vertical direction and attaching the lower mold part to the upper surface, and the pressure plate is lowered by the inflow of the high-pressure fluid into the annular groove.
  • the upper and lower mold parts are tightened by lifting the mold part.
  • the crank includes a crank gear having a tooth portion formed on an outer periphery thereof, and the crank gear is rotated by driving means including a driving gear meshing with the tooth portion. .
  • the guide guide includes the upper and lower guide portions and a horizontal guide portion extending horizontally from an upper end of the upper and lower guide portions.
  • the tire vulcanizer of the present invention separately includes lifting / lowering means for opening and closing the mold and mold clamping means for clamping the mold.
  • a crank mechanism is used for the lifting means. Therefore, for example, the apparatus can be reduced in size as compared with a case where the upper table is held up and down by using a long cylinder. Also, the mold is only opened and closed by the crank mechanism, and the mold is not tightened. Therefore, a large load load on the crank mechanism can be suppressed, and wear of the bearing portion can be suppressed to prevent the occurrence of early rattling.
  • the mold clamping means includes a connecting tool for connecting the upper table and the lower table with tie rods, an annular groove recessed on the lower table and concentric with the mold, and slidable up and down in the annular groove. And a pressure tool having an annular pressure plate that lifts the lower mold part by inflow of high-pressure fluid into the annular groove. Therefore, it is possible to generate a large tightening force while having excellent durability, and to perform uniform and high-precision tightening.
  • FIG. 1 It is a perspective view which shows one Example of the tire vulcanizer of this invention. It is a fragmentary perspective view which expands and shows the part. It is a schematic side view which shows the lowering position and raising position of an upper table with a raising / lowering means. It is a schematic front view which shows the descent
  • (A) is a two-view drawing showing the state before clamping of the tie rod
  • (B) is a two-view drawing showing the state after clamping.
  • (A) is a top view which shows a pressurization tool
  • (B) is side part sectional drawing which shows a pressurization tool.
  • (A) is sectional drawing which shows notionally the mold open state in a raise position
  • (B) is sectional drawing which shows notionally the mold closed state in a fall position. It is a perspective view which shows the conventional tire vulcanizer.
  • the tire vulcanizer 1 of this embodiment includes a lower table 3L to which a lower mold part 2L is attached, an upper table 3U to which an upper mold part 2U is attached, and the upper table 3U can be moved up and down.
  • lowering means 4 for closing the upper and lower mold parts 2U, 2L at the lowered position P1 (shown in FIGS. 3 and 4), and the upper and lower mold parts 2U, 2L at the lowered position P1.
  • a mold clamping means 5 for clamping.
  • the upper and lower mold parts 2U and 2L are not particularly defined, and those having a well-known structure can be suitably used.
  • the lower mold part 2L of this example includes a lower side mold 6 corresponding to the lower sidewall part and the lower bead part of the tire T, and the A heating platen plate 7 that supports the lower side mold 6 is included.
  • the platen plate 7 is attached to the lower table 3L via a pressure plate 41.
  • the upper mold portion 2U includes an upper side mold 10 corresponding to the upper sidewall portion and the upper bead portion of the tire T, a tread mold 11 capable of expanding and contracting corresponding to the tread portion of the tire T, and the side mold 10. And a platen plate 12 for heating to which the tread mold 11 is attached, and a cylindrical container 13 for expanding and contracting the tread mold 11.
  • the container 13 is attached to the upper table 3U so as to be movable together.
  • the platen plate 12 is attached to the upper table 3U so as to be movable relative to the upper table 3U, for example, via a cylinder 14 or the like.
  • the platen plate 12 relatively moves up and down due to the expansion and contraction of the cylinder 14, and the tread mold 11 can expand and contract with this relative movement.
  • FIG. 7 is a bladder central mechanism that heats and expands the tire T from the inside during vulcanization.
  • a so-called BOM type having a center post 15a that can be moved up and down and a bladder 15b that is attached to the center post 15a is shown as the bladder center mechanism 15.
  • Reference numeral 16 denotes a push shaft that can be raised and lowered to depress the center post 15a and remove the bladder 15b from the vulcanized tire.
  • the tire vulcanizer 1 of the present example includes, for example, a U-shaped frame 17 in which side plates 17 ⁇ / b> A are raised on both sides.
  • a support base 18 is disposed on the frame 17, and the lower table 3 ⁇ / b> L is mounted on the support base 18.
  • the lower table 3L has a loading position for loading the raw tire into the lower mold part 2L, a vulcanization position for vulcanizing the loaded raw tire, and for taking out the vulcanized tire.
  • the support base 18 can be configured as a travel base that can move in the front-rear direction so that the support base 18 can move between the take-out positions. In this case, the tire vulcanization process can be made more efficient.
  • the lifting / lowering means 4 that supports the upper table 3U so as to be movable up and down includes a crank mechanism 19.
  • the crank mechanism 19 includes a crank 20 that can rotate around an axis i, a guide guide 21 having a vertical guide portion 21a extending in the vertical direction, and is attached to the upper table 3U and guided to the guide guide 21. And a link 23 for connecting the crank 20 and the slider 22 to each other.
  • the crank 20 of this example is formed from a pair of crank gears 24 having teeth on the outer periphery.
  • Each crank gear 24 is pivotally connected to each side plate 17A concentrically.
  • the drive means 25 for driving each crank gear 24 includes a pair of drive gears 25 ⁇ / b> A that mesh with each crank gear 24.
  • each drive gear 25A is supported by one support shaft 25B driven by a motor. As a result, the crank gears 24 can be accurately synchronized.
  • the guide guide 21 is formed on each side plate 17A.
  • the guide guide 21 includes a vertical guide portion 21a extending in the vertical direction.
  • the guide guide 21 of this example includes the upper and lower guide portions 21a and a lateral guide portion 21b extending in the horizontal direction from the upper end of the upper and lower guide portions 21a.
  • the upper and lower guide portions 21a are upper end opening grooves extending along a vertical line passing through the axis i, and guide the slider 22 while being sandwiched between the groove side edges E1 and E1.
  • the lateral guide portion 21b is formed by the upper end edge E2 of the side plate 17A.
  • the upper end edge E2 is smoothly connected to the one groove side edge E1 via an arc portion.
  • the slider 22 is formed of a support shaft portion 22a and a roller portion 22b in this example. One end portion of the support shaft portion 22a is fixed to the upper table 3U.
  • the roller portion 22b is rotatably supported by the support shaft portion 22a, and slides or rolls along the groove side edge E1 and the upper end edge E2.
  • the lower end portion of the link 23 is pivotally supported at a first pivot point Q1 provided on the crank 20 and at a position different from the axis i.
  • the upper end of the link 23 is pivotally supported by a second pivot point Q2 provided on the slider 22.
  • the second pivot point Q2 is located at the axial center of the support shaft portion 22a.
  • the elevating means 4 By constructing the elevating means 4 in this way, the rotational movement around the axis i of the crank 20 can be converted into the vertical movement of the upper table 3U.
  • the upper and lower mold parts 2L and 2U come into contact with each other to close the mold 2 and the upper mold part 2U is separated from the lower mold part 2L and the tire is separated from the lower mold part 2L.
  • the upper table 3U can be moved along the guide guide 21 up to the separation position P2 at which can be removed.
  • the vertical movement by the vertical guide part 21a from the lowered position P1 and the lateral movement by the horizontal guide part 21b to the subsequent separation position P2 are performed.
  • the lateral guide portion 21b By providing the lateral guide portion 21b in this manner, the upper mold portion 2U can be safely stopped while the fall from the separation position P2 is suppressed.
  • the mold clamping means 5 is connected between the upper table 3U and the lower table 3L at the lowered position P1, and between the upper table 3U and the lower table 3L.
  • a pressurizing tool 31 for fastening the mold parts 2U and 2L is provided.
  • the connector 30 includes a plurality of tie rods 32 and a plurality of tie rod clamps 33 as shown in FIG.
  • the tie rod 32 rises vertically with one end (lower end in this example) fixed to one of the lower table 3L or the upper table 3U (lower table 3L in this example).
  • the tie rod clamp 33 is attached to the other table (upper table 3U in this example), and clamps the other end 32E (upper end 32E in this example) of each tie rod 32 at the lowered position P1.
  • the tie rods 32 are arranged at equal intervals around the mold. In this example, a case where four tie rods 32 are arranged around each mold 2 is shown.
  • the tie rod 32 is a long cylindrical body. As shown in FIGS. 5A and 5B, an insertion hole 34 through which the upper end portion 32E of the tie rod 32 passes is formed in the upper table 3U.
  • the upper end portion 32E has a protruding portion 32E1 extending upward beyond the upper surface of the upper table 3U.
  • the protruding portion 32E1 is formed with a circumferential groove-shaped constricted portion 35 in a stepped shape.
  • the tie rod clamp 33 includes a pair of halved block-shaped clamp pieces 36 each provided with a semicircular cutout 36A on the opposing surface 36S.
  • the clamp piece 36 is supported by a known holding tool (not shown) using, for example, a cylinder or the like so that the facing surface 36S faces each other and can move forward and backward on the upper table 3U. Then, at the forward movement position T1 where the facing surface 36S comes into contact or close, the notch 36A cooperates to form a locking hole 37 that fills the constricted portion 35, and the upper end 32E can be locked. Further, the upper end portion 32E can be opened at the retracted position T2 that is separated.
  • various known structures can be adopted.
  • the pressurizing tool 31 includes an annular groove 40 that is recessed on the upper surface of the lower table 3L and is concentric with the lower mold part 2L, and the annular tool 40.
  • An annular pressure plate 41 is provided in the groove 40 so as to be slidable up and down.
  • the annular groove 40 includes a main groove portion 40a that holds the pressure plate 41 so as to be slidable up and down, and a narrow sub groove portion 40b adjacent to the lower side of the main groove portion 40a.
  • a high-pressure fluid supply passage 43 is connected to the sub-groove portion 40b.
  • the lower mold part 2L is attached to the upper surface of the pressure plate 41.
  • the pressurizing plate 41 lifts the lower mold part 2 ⁇ / b> L by the inflow of the high-pressure fluid into the annular groove 40.
  • the upper and lower mold parts 2U, 2L can be tightened between the upper table 3U and the lower table 3L.
  • the pressurizing tool 31 uses a high-pressure fluid, it can generate a large clamping force while having excellent durability. In particular, since it has an annular shape, a large tightening force can be applied uniformly, and high-precision tightening can be performed. Further, since the structure is simple and compact, it can greatly contribute to the reduction of the apparatus cost and the downsizing of the apparatus.

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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 s'attaque au problème consistant à rendre un moule uniformément étanche, avec une bonne précision sur de longues périodes. Cette presse à vulcaniser les pneumatiques (1) comporte : une table inférieure (3L) sur laquelle est montée la section de moule inférieure (2L) ; une table supérieure (3U) sur laquelle est montée la section de moule supérieure (2U) ; un moyen de levage (4) qui supporte la table supérieure de telle sorte qu'elle se déplace librement vers le haut et vers le bas ; et un moyen d'étanchement de moule (5) qui rend le moule étanche dans la position abaissée. Le moyen de levage est équipé d'un mécanisme de serrage (19). Le moyen d'étanchement de moule (5) est équipé de : un outil de raccordement (30) qui possède des tirants (32) qui relient les tables supérieure et inférieure ; et un dispositif de mise sous pression (31) qui comprend une plaque de mise sous pression de forme annulaire (41) qui est disposée pour coulisser verticalement dans une gorge annulaire (40) qui forme un évidement sur la table inférieure et sur la surface supérieure de laquelle est montée la section de moule inférieure.
PCT/JP2013/060615 2012-04-17 2013-04-08 Presse à vulcaniser les pneumatiques WO2013157428A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201380002461.6A CN103717367A (zh) 2012-04-17 2013-04-08 轮胎硫化机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-094083 2012-04-17
JP2012094083A JP2013220603A (ja) 2012-04-17 2012-04-17 タイヤ加硫機

Publications (1)

Publication Number Publication Date
WO2013157428A1 true WO2013157428A1 (fr) 2013-10-24

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Application Number Title Priority Date Filing Date
PCT/JP2013/060615 WO2013157428A1 (fr) 2012-04-17 2013-04-08 Presse à vulcaniser les pneumatiques

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JP (1) JP2013220603A (fr)
CN (1) CN103717367A (fr)
WO (1) WO2013157428A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019198253A1 (fr) * 2018-04-12 2019-10-17 株式会社Ｒｏｃｋｙ－Ｉｃｈｉｍａｒｕ Machine de vulcanisation de pneu et méthode de vulcanisation de pneu
TWI729318B (zh) * 2017-10-27 2021-06-01 日商Ｔｏｗａ股份有限公司 樹脂成形品的製造裝置、樹脂成形系統以及樹脂成形品的製造方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6809580B1 (ja) * 2019-08-05 2021-01-06 横浜ゴム株式会社 タイヤ加硫装置および方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1052825A (ja) * 1996-06-06 1998-02-24 Kobe Steel Ltd タイヤ加硫機
JPH1067017A (ja) * 1996-08-08 1998-03-10 Kobe Steel Ltd タイヤ加硫機
JP2001001346A (ja) * 1999-06-25 2001-01-09 Mitsubishi Heavy Ind Ltd タイヤ加硫装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1052825A (ja) * 1996-06-06 1998-02-24 Kobe Steel Ltd タイヤ加硫機
JPH1067017A (ja) * 1996-08-08 1998-03-10 Kobe Steel Ltd タイヤ加硫機
JP2001001346A (ja) * 1999-06-25 2001-01-09 Mitsubishi Heavy Ind Ltd タイヤ加硫装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI729318B (zh) * 2017-10-27 2021-06-01 日商Ｔｏｗａ股份有限公司 樹脂成形品的製造裝置、樹脂成形系統以及樹脂成形品的製造方法
WO2019198253A1 (fr) * 2018-04-12 2019-10-17 株式会社Ｒｏｃｋｙ－Ｉｃｈｉｍａｒｕ Machine de vulcanisation de pneu et méthode de vulcanisation de pneu
JPWO2019198253A1 (ja) * 2018-04-12 2020-04-30 株式会社Ｒｏｃｋｙ−Ｉｃｈｉｍａｒｕ タイヤ加硫機及びタイヤ加硫方法

Also Published As

Publication number Publication date
JP2013220603A (ja) 2013-10-28
CN103717367A (zh) 2014-04-09

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