WO2009143701A1 - 子午线轮胎活络模具胎侧板 - Google Patents

子午线轮胎活络模具胎侧板 Download PDF

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Publication number
WO2009143701A1
WO2009143701A1 PCT/CN2009/000580 CN2009000580W WO2009143701A1 WO 2009143701 A1 WO2009143701 A1 WO 2009143701A1 CN 2009000580 W CN2009000580 W CN 2009000580W WO 2009143701 A1 WO2009143701 A1 WO 2009143701A1
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WO
WIPO (PCT)
Prior art keywords
sidewall
substrate
ring
annular
concentric
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PCT/CN2009/000580
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English (en)
French (fr)
Inventor
焦慧
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青岛联鑫机械有限公司
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Publication of WO2009143701A1 publication Critical patent/WO2009143701A1/zh

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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
    • B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • B29C33/424—Moulding surfaces provided with means for marking or patterning
    • B29C33/428—For altering indicia, e.g. data, numbers
    • 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
    • B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting 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
    • B29D30/0606—Vulcanising moulds not integral with vulcanising presses
    • B29D30/0629—Vulcanising moulds not integral with vulcanising presses with radially movable sectors

Definitions

  • the present invention relates to a radial tire active mold sidewall panel, and more particularly to a radial tire active mold sidewall panel having a concentric annular ring on its working surface.
  • the outer contour of the radial tire is molded by the ring in the active mold and the side plates combined on the upper and lower sides of the ring.
  • the pattern ring is formed by a plurality of blocks distributed circumferentially, and the inner surface of the block is patterned to mold the crown pattern of the tire.
  • the sidewall panels are used to mold the shape, logo, pattern and logo of the sidewall of the tire.
  • the sidewall is also required to be easy to manufacture, replace the sidewall logo, pattern and The text mark is easy and the exhaust performance is good.
  • Tire factories often need to vulcanize tires of the same specification but with different trademarks, patterns and logos on the same pair of molds. This requires the placement of live blocks on the working side of the mold sidewall, and the different logos, patterns and text marks are engraved on multiple sets of live blocks. The replacement of the live blocks can vulcanize the same specifications but different trademarks, patterns and text marks.
  • Tires. The shape of the block is generally designed as a circular arc. A circular arc-shaped groove is arranged on the working surface of the sidewall board corresponding to the movable block, and the movable block is fixedly installed in the groove.
  • a plurality of living blocks of different sizes and different positions are usually arranged on one side plate, and a plurality of living blocks corresponding to the different sizes and different positions are processed to have the same size and number of circles at corresponding positions on the working surface of the side wall plate. Curved groove.
  • the problem with this type of construction is that the fit to the live block and the groove is quite strict, otherwise a gap will occur at the fit, leaving the raised tire side with raised film.
  • the active mold discharges the gas between the green tire and the cavity during the mold clamping process. Some of the gas is present in the crown portion, and the other portion is present on the sidewall portions on both sides. It is necessary to discharge the gas existing on the side portions of the two sides.
  • the long-term method is to provide a vent hole on the side wall of the tire, but the vent hole also emits some rubber at the same time as the gas is exhausted. Many small rubber columns are formed on the surface.
  • the sidewalls of the venting holes have the following problems: 1.
  • the appearance of the vulcanized tires is not beautiful. The tires need to be trimmed before leaving the factory, which wastes manpower and leaves obvious marks on the tire surface after trimming.
  • the trimmed rubber column can only be treated as waste, waste rubber and other raw materials; 3, the vent hole is easy to block, in order to ensure normal vulcanization, it is necessary to stop production regularly to clear the vent hole, reducing the production efficiency of the tire.
  • Another method of exhausting is to first drill some step holes on the working surface of the sidewall plate, and the pore portion of the step hole communicates with the other side of the sidewall plate (non-working surface, the same below), and then the main working surface The coarse hole is inserted into the exhaust column (a material with micropores), and the gas between the sidewall and the side plate of the tire is discharged from the micropores in the exhaust column during vulcanization.
  • the object of the present invention is to overcome the above-mentioned defects of the existing tire mold sidewall plates, and propose a new structure of a radial tire active mold sidewall plate, which is simple to manufacture and easy to change the sidewall logo, pattern and character logo.
  • a radial tire active mold sidewall plate comprising a substrate, wherein the working surface of the substrate is embedded with not less than one concentric ring, the surface and substrate of the concentric ring The surfaces together form a surface of the sidewall of the sidewall of the molded tire, and a ring-shaped slit is provided between the substrate and the concentric ring and between adjacent concentric rings in the radial direction.
  • the sidewall logo, pattern and logo may be engraved in whole or in part on concentric rings.
  • the substrate working surface is provided with at least one annular groove, and the concentric ring is embedded in the annular groove.
  • the spacing between the annular grooves is 0 to 50 awake.
  • the same side panel may have one or more sets of concentric rings, each of which includes at least one concentric ring, and each of the sets may be interchangeably mounted in the recess of the substrate.
  • a set of concentric rings can be replaced with another set of concentric rings.
  • the number of rings in each set of concentric rings is generally based on the size of the tire mold and the sidewall logo. The arrangement of the pattern and the text logo is determined.
  • a ring-shaped gap of 0. 02 ⁇ 0. 08 is provided in the radial direction, the gap can function as a venting, and at the same time, the rubber is not guaranteed. Flowing out of it.
  • An annular gas collecting groove is provided on the substrate corresponding to the annular slit, and the annular gas collecting groove communicates with the non-working surface of the sidewall plate through a plurality of through holes at the bottom thereof.
  • a concentric ring may be provided in one annular groove of the substrate, or a plurality of concentric rings may be provided.
  • the concentric rings have a thickness of 20 to 30 legs, and the material is the same as the substrate material, and is generally a steel ring.
  • the gas between the side of the green tire and the side wall first enters the annular collecting groove of the substrate through the annular gap between the substrate and the concentric ring, and then along the bottom of the annular collecting groove and the sidewall plate.
  • a plurality of through holes provided between the non-working faces are discharged from the mold.
  • the processing method of the structural sidewall plate is that the mating surface of the annular groove of the substrate and the concentric ring is first processed on the lathe, and the concentric ring is assembled with the substrate and fixed by screws, and then once on the lathe. The working surface of the sidewall is processed. Since the precision matching surface of the substrate groove and the concentric ring is machined on the lathe, it is easier to process and higher in efficiency than the high-precision milling machining center, and the manufacturing cost of the sidewall plate is greatly reduced.
  • the beneficial effects of the present invention are as follows:
  • the radial tire movable mold sidewall plate of the structure is composed of a substrate with an annular groove and not less than one concentric ring, and the concentric ring is embedded in the annular groove of the substrate by the fixing screw It is fixed from the non-working surface side to the substrate, and compared with the existing active mold sidewall plate, (1) the sidewall plate of the structure is easy to manufacture; (2) the sidewall logo, pattern and character mark are easily replaced; (3) It can ensure that the gas in the mold is fully discharged, and no rubber column or spot is formed on the sidewall surface of the vulcanized tire, so that the shape of the tire after vulcanization molding is neat and beautiful; (4) no need to carry out the rubber column Trimming saves manpower and rubber; (5) There is no clogging problem, which improves the production efficiency of the tire;
  • Figure 1 is a cross-sectional view of a side wall panel of Embodiment 1;
  • Figure 2 is a partial enlarged view of a portion A in Figure 1;
  • Figure 3 is a plan view of the sidewall board of Embodiment 1;
  • Figure 4 is a cross-sectional view of the side wall panel of Embodiment 2;
  • Figure 5 is a partial enlarged view of B in Figure 4.
  • Figure 6 is a plan view of the sidewall board of Embodiment 2.
  • Figure 7 is a cross-sectional view of a side wall panel of Embodiment 3.
  • Figure 8 is a cross-sectional view showing a side wall panel of Embodiment 4.
  • the sidewall board is composed of a substrate 1, a steel ring 2 and a plurality of fixing screws 3.
  • the working surface of the substrate 1 is provided with an annular groove in which the annular groove is provided.
  • a steel ring 2 is provided, a part of the logo, pattern and logo of the sidewall is engraved on the surface of the steel ring 2, and the other part is engraved on the working surface of the substrate.
  • the surface of the steel ring 2 and the surface of the substrate 1 together form a surface of the sidewall shape of the sidewall molding tire, and the steel ring 2 is connected to the substrate 1 from the non-working surface side of the sidewall plate, screw 3 Several are arranged along the circumferential direction of the annular groove.
  • a gap of 0. 02 ⁇ 0. 08 mm is provided along the radial direction of the sidewall plate, thereby forming two ring-shaped slits on both sides of the steel ring 2.
  • the substrate 1 corresponding to the two ring-shaped slits is provided with two annular gas collecting grooves 4 having a width of 5 mm and a depth of 3 mm, and a plurality of substrates 1 are distributed along the circumferential direction at the bottom of the gas collecting groove 4.
  • the non-working surface is connected to the air hole 5.
  • the thickness of the steel ring is designed to be between 20 and 30 legs.
  • the gas between the sidewall and the side of the green tire first flows into the gas collecting groove 4 from the annular gap between the steel ring 2 and the substrate 1, and then passes through the air hole 5 at the bottom of the gas collecting groove 4. Discharged from the mold.
  • the gap between the 0. 02 ⁇ 0. 08mm gap It has been proved by experimental research that the gap only allows the gas to be under a certain pressure. Exclude without spilling the compound.
  • the steel ring 2 which cooperates with the annular groove on the substrate, can have several sets. When the sidewall logo, pattern and text mark need to be replaced, the steel ring can be replaced with another matching steel ring.
  • At least one annular groove is disposed on the substrate, and the number of the annular grooves is generally determined according to the size of the tire mold and the number of concentric rings per set.
  • the number of rings in each concentric ring is generally determined by the size of the tire mold and the arrangement of the sidewall logo, pattern and text mark. When it is necessary to change the sidewall logo, pattern and text mark, only one set of concentric rings needs to be exchanged into another set of concentric rings.
  • the surface of the substrate which is in contact with the steel ring is provided with an uneven pattern which allows a certain air-bearing space between the contact faces of the steel ring and the substrate.
  • the surface and the other side of the sidewall plate are provided with a plurality of vent holes along the circumferential direction thereof.
  • the sidewall plate comprises a substrate 1 and two concentric rings 2, and two annular grooves are provided on the substrate 1, and the distance between the two annular grooves is 50 ⁇ .
  • Concentric rings 2 are respectively arranged in the annular grooves, and the concentric rings 2 are fixed on the substrate 1 by screws 3, and the screws 3 are arranged in the circumferential direction of the annular grooves.
  • the gap between the concentric ring 2 and the substrate 1 is 0. 02 ⁇ 0. ⁇ is provided along the radial direction of the sidewall plate.
  • annular groove is disposed on the substrate 1, and both concentric rings 2 are disposed in the annular groove.
  • the gap between 0. 02 ⁇ 0. 08mm is provided between the adjacent concentric rings 2 and the concentric ring 2 and the substrate 1 along the radial direction of the sidewall.
  • the sidewall board comprises a substrate 1 and five steel rings 2, and an annular groove is arranged on the substrate 1, and five concentric rings 4 are arranged in the groove, and the concentric rings 4 are fixed by screws 3 On the substrate 1, the screws 3 are arranged in the circumferential direction of the annular groove.
  • the adjacent concentric rings 4 and the concentric rings 4 and the substrate 1 are provided with a gap of 0 ⁇ 02 ⁇ 0.88 in the radial direction of the sidewall plate, that is, two sides are formed on both sides of the concentric ring 4. A circular gap.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Description

子午线轮胎活络模具胎侧板 技术领域
本发明涉及一种子午线轮胎活络模具胎侧板， 具体地说是一种其工作面镶嵌有同心圆环 的子午线轮胎活络模具胎侧板。
背景技术
子午线轮胎的外轮廓是由活络模具中的花纹圈与组合在花紋圈上下两侧的胎侧板模压成 形的。 花紋圈由若干个花纹块沿圆周分布形成， 花紋块的内表面带有花紋， 能够模压出轮胎 的胎冠花紋。 胎侧板用于模压轮胎胎侧的形状、 商标、 图案和文字标识。 通常情况下， 除了 对胎侧板的形状、 尺寸和工作面 （即模压轮胎胎侧的表面， 下同）光洁度有较高要求外， 还 要求胎侧板便于制造、 更换胎侧商标、 图案和文字标识容易且排气性能良好等。
轮胎工厂往往需要在同一副模具上硫化出相同规格但带有不同商标、 图案和文字标识的 轮胎。 这就需要在模具胎侧板工作面上设置活块， 再把不同的商标、 图案和文字标识刻在多 套活块上， 更换活块就能硫化出同规格但不同商标、 图案和文字标识的轮胎。 活块的形状一 般设计成一段圆弧。 与活块相对应的胎侧板工作面上设置圆弧形凹槽， 活块固定安装在凹槽 内。 一付侧板上通常要设置不同大小和不同位置的多个活块， 对应上述不同大小和不同位置 的多个活块在胎侧板工作面上的相应位置要加工出同样大小和数量的圆弧形凹槽。 这种结构 的问题是， 对活块和凹槽的配合要求相当严格， 否则就要在配合处出现缝隙， 使硫化出的轮 胎胎侧留有凸起的胶片。 为了保证不同大小和不同位置的多个活块与相应大小和位置的圆弧 形凹槽的精密配合并有互换性， 需要用高精密的加工中心进行铣削加工， 导致胎侧板制造难 度加大， 提高了制造成本。
硫化轮胎时， 活络模具在合模过程中要把胎胚与模腔之间的气体排出， 这些气体一部分 存在于胎冠部位， 另一部分存在于两边的胎侧部位。 要把存在于两边胎侧部位的气体排出， 长期以来的办法是在胎侧板上设置排气孔， 但是排气孔在排出气体的同时也有一些橡胶随之 流出， 在硫化出的轮胎胎侧表面形成很多小胶柱。设置排气孔的胎侧板存在以下问题； 1、硫 化出的轮胎外观不美观， 轮胎出厂前需要对这些小胶柱进行修剪， 浪费人力， 而且修剪后还 会在轮胎表面留下明显的痕迹； 2、 修剪下来的胶柱只能作为废料处理， 浪费橡胶等原材料； 3、排气孔容易堵塞， 为了保证硫化正常进行， 要定期停产对排气孔进行疏通， 降低了轮胎的 生产效率。 另外一种排气方法是先在胎侧板的工作面上钻出一些台阶孔， 台阶孔的细孔部分 沟通胎侧板的另一面（非工作面， 下同）， 再 ί主工作面上的粗孔中塞入排气柱（一种带有微孔 的材料），硫化时轮胎胎侧与侧板之间的气体从排气柱中的微孔中排出。这种排气方法的好处 是不会在轮胎侧面留下胶柱， 但疏松的微孔材料会在轮胎胎侧表面留下斑痕而影响外观， 并 且微孔材料的排气量较小， 为了使轮胎胎侧与侧板之间的气体充分排出， 就要增多台阶孔的 个数， 这不但常常会与商标、 图案和文字标识的布局发生矛盾， 而且会在轮胎胎侧表面留下 更多的斑痕。
除上述问题之外， 现有结构的胎侧板不同大小和不同位置的多个活块在胎侧板工作面上 的布置经常会与排气孔或排气柱的布置发生干涉。
发明内容
本发明的目的在于克服现有的轮胎模具胎侧板存在的上述缺陷， 提出了一种新结构的子 午线轮胎活络模具胎侧板， 其制造简单且易于更换胎侧商标、 图案和文字标识， 在不设置排 气孔或排气柱的情况下仍具有较好的排气功能， 另外不存在不同大小和不同位置的多个活块 在胎侧板工作面上的布置与排气孔或排气柱的布置发生干涉的问题。
本发明是采用以下技术方案实现的： 一种子午线轮胎活络模具胎侧板， 包括基板， 其中， 所述基板的工作面上镶嵌有不少于一个的同心圆环， 同心圆环的表面与基板的表面共同构成 胎侧板模压轮胎胎侧形状的表面， 基板与同心圆环之间和各相邻的同心圆环之间沿半径方向 均设有环型缝隙。 胎侧商标、 图案和文字标识可全部或部分刻在同心圆环上。
本发明中， 所述的基板工作面设有至少一个环形凹槽， 同心圆环镶嵌在环形凹槽内。 所 述的环形凹槽之间的间距为 0〜50醒。 同一片胎侧板可以对应有一套或一套以上的同心圆环， 每一套中至少包括一个同心圆环， 且各套均可互换性地安装在基板的凹槽内。 需要更换胎侧 商标、 图案和文字标识时， 可将一套同心圆环换成另一套同心圆环， 每套同心圆环中圆环的 个数一般根据轮胎模具的尺寸和胎侧商标、 图案和文字标识的排列情况来确定。
基板与同心圆环之间和各相邻的同心圆环之间沿半径方向均设置 0. 02〜0. 08麵 的环型 缝隙， 该缝隙能够起到排气作用， 同时保证胶料不会从中流出。 在与所述的环型缝隙相对应 处的基板上设有环形集气槽， 该环形集气槽通过其底部的若干个通孔与胎侧板的非工作面相 连通。 在基板的一个环形凹槽内既可以设置一个同心圆环， 也可以设置多个同心圆环。 所述 的同心圆环的厚度为 20〜30腿， 其材料与基板材料相同， 一般为钢环。 硫化合模时， 胎胚侧 面与胎侧板之间的气体首先通过基板、 同心圆环之间的环型缝隙进入基板的环形集气槽内， 然后沿着环形集气槽底部与胎侧板非工作面之间设置的若干个通孔从模具中排出。
该种结构胎侧板的加工方法是， 先将基板的环形凹槽与同心圆环相互的配合面在车床上 加工好， 再把同心圆环与基板进行装配并用螺钉固定， 然后在车床上一次性加工出胎侧板的 工作面。 由于是在车床上加工出基板凹槽和同心圆环的精密配合面， 所以比在高精度的铣削 加工中心上加工容易， 效率高， 大大降低了胎侧板的制造成本。 本发明的有益效果是： 该结构的子午线轮胎活络模具胎侧板由带环形凹槽的基板和不少 于一个的同心圆环组成， 同心圆环镶嵌在基板的环形凹槽中， 由固定螺钉从非工作面一侧与 基板固定在一起， 与现有的活络模具胎侧板相比， （1 ) 该结构的胎侧板容易制造； （2 ) 易于 更换胎侧商标、 图案和文字标识； （3 ) 既能够保证将模具中的气体充分排出， 又不会在硫化 后的轮胎胎侧表面上形成胶柱或斑痕， 使得硫化成型后的轮胎外形整洁美观； （4 ) 无需对胶 柱进行修剪， 节省了人力和胶料； （5 ) 不会存在排气孔堵塞问题， 提高了轮胎的生产效率；
( 6 )不存在不同大小和不同位置的多个活块在胎侧板工作面上的布置与排气孔或排气柱的布 置发生干涉的问题。
附图说明
附图 1为实施例 1中胎侧板的剖面图；
附图 2为附图 1中 A处的局部放大图；
附图 3为实施例 1中胎侧板的俯视图；
附图 4为实施例 2中胎侧板的剖面图；
附图 5为附图 4中 B处的局部放大图；
附图 6为实施例 2中胎侧板的俯视图；
附图 7为实施例 3中胎侧板的剖面图；
附图 8为实施例 4中胎侧板的剖面图。
具体实施方式
实施例 1
如图 1、 图 2和图 3所示， 该胎侧板由基板 1、 一个钢环 2和多个固定螺钉 3组成， 基板 1的工作面上设有一个环形凹槽， 该环形凹槽中设置有钢环 2， 胎侧的商标、 图案和文字标识 的一部分刻在钢环 2的表面， 另一部分刻在基板工作面上。 钢环 2的表面与基板 1的表面共 同构成胎侧板模压轮胎胎侧形状的表面， 且该钢环 2通¾：螺钉 3从胎侧板的非工作面一侧与 基板 1连接， 螺钉 3沿环形槽圆周方向设置有若干个。 钢环 2与基板 1之间沿胎侧板的半径 方向设有 0. 02〜0. 08mm的间隙， 从而在钢环 2的两侧形成两道圆环型缝隙。与这两道圆环型 缝隙相对应的基板 1上设有两个宽 5毫米、 深 3毫米的环形集气槽 4， 在集气槽 4的底部沿 其圆周方向分布着多个与基板 1 的非工作面连通的气孔 5。 为了保证钢环的强度， 防止其变 形， 钢环的厚度设计在 20〜30腿之间。
轮胎装胎合模时， 胎侧板与胎胚侧面之间的气体首先从钢环 2与基板 1之间的圆环型缝 隙流入集气槽 4， 然后通过集气槽 4底部的气孔 5从模具中排出。 基板 1与钢环 2之间圆环 形缝隙的宽度为 0. 02〜0. 08mm的间隙。通过实验研究证明， 该间隙只允许气体在一定压力下 排除， 而不会使胶料溢出。
与基板上的环形凹槽相配合的钢环 2可以有若干套， 需要更换胎侧商标、 图案和文字标 识时， 可将该钢环换成另一个配套的钢环。
另外， 基板上设置至少一个环形凹槽， 环形凹槽的个数一般根据轮胎模具的尺寸和每套 同心圆环的个数确定。 每套同心圆环中圆环的个数一般根据轮胎模具的尺寸和胎侧商标、 图 案和文字标识的排列情况来确定。 当需要更换胎侧商标、 图案和文字标识时， 只需要将一套 同心圆环调换成另一套配套的同心圆环。
实施例 2
与钢环相接触的基板表面上设有凹凸不平的花紋， 该花紋使钢环与基板的接触面之间存 在一定的容气空间。 该表面与胎侧板的另一面之间沿其圆周方向设有若干个排气孔。 轮胎合 模后， 胎侧板与胎胚侧面之间的气体首先从圆环形缝隙进入钢环与基板的接触面之间， 然后 沿基板的排气孔从轮胎模具中排出。
其他同实施例 1。
实施例 3
如图 4、 图 5和图 6所示， 该胎侧板包括基板 1和两个同心圆环 2， 基板 1上设置两个环 形凹槽， 两环形凹槽之间的距离为 50讓。 环形凹槽内分别设有同心圆环 2， 同心圆环 2通过 螺钉 3固定在基板 1上， 螺钉 3沿环形槽圆周方向设置若千个。 同心圆环 2与基板 1之间沿 胎侧板的半径方向设置有 0. 02〜0. Οδιπιη的间隙。
其他同实施例 1。
实施例 4
如图 7所示， 基板 1上设置一个环形凹槽， 两同心圆环 2均设置在该环形凹槽内。 此时 相邻的同心圆环 2之间及同心圆环 2与基板 1之间沿胎侧板的半径方向均设有 0. 02〜0. 08mm 的间隙。
其他同实施例 1。
实施例 5
如图 8所示， 该胎侧板包括基板 1和五个钢环 2， 基板 1上设置一个环形凹槽， 凹槽内 设有五个同心圆环 4， 同心圆环 4通过螺钉 3固定在基板 1上， 螺钉 3沿环形槽圆周方向设 置若干个。相邻的同心圆环 4及同心圆环 4与基板 1之间沿胎侧板的半径方向均设置有 0· 02〜 0. 08讓的间隙， 即在同心圆环 4的两侧形成两道圆环形缝隙。
其他同实施例 1。

Claims

WO 2009/143701 权 禾 lj 要 求 书 PCT/CN2009/000580
1、一种子午线轮胎活络模具胎侧板， 包括基板， 其特征在于： 所述基板的工作面上镶嵌 有不少于一个的同心圆环， 同心圆环的表面与基板的表面共同构成胎侧板模压轮胎胎侧形状 的表面， 基板与同心圆环之间和各相邻的同心圆环之间沿半径方向均设置有环型缝隙。
2、根据权利要求 1所述的子午线轮胎活络模具胎侧板， 其特征在于： 所述的基板工作面 设有至少一个环形凹槽， 同心圆环镶嵌在环形凹槽内。
3、根据权利要求 1所述的子午线轮胎活络模具胎侧板，其特征在于： 所述的不少于一个 的同心圆环对应于同一片胎侧板有一套或一套以上， 各套均可互换性地安装在基板的环形凹 槽内。
4、根据权利要求 2所述的子午线轮胎活络模具胎侧板，其特征在于： 所述的环形凹槽之 间的间距为 0〜50mm。
5、根据权利要求 1所述的子午线轮胎活络模具胎侧板， 其特征在于： 所述的环型缝隙的 宽度设置在 0. 02ran！〜 0. 08醒之间。
6、根据权利要求 1所述的子午线轮胎活络模具胎侧板， 其特征在于： 与所述的环型缝隙 相对应处的基板上设置有环形集气槽， 该环型集气槽通过其底部的通孔与胎侧板的非工作面 相连通。
7、根据权利要求 1所述的子午线轮胎活络模具胎侧板， 其特征在于： 所述的同心圆环通 过螺钉固定在基板上。
PCT/CN2009/000580 2008-05-30 2009-05-26 子午线轮胎活络模具胎侧板 WO2009143701A1 (zh)

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