WO2014201765A1 - 一种轮胎胎胚成型鼓及成型方法 - Google Patents

一种轮胎胎胚成型鼓及成型方法 Download PDF

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Publication number
WO2014201765A1
WO2014201765A1 PCT/CN2013/082270 CN2013082270W WO2014201765A1 WO 2014201765 A1 WO2014201765 A1 WO 2014201765A1 CN 2013082270 W CN2013082270 W CN 2013082270W WO 2014201765 A1 WO2014201765 A1 WO 2014201765A1
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WO
WIPO (PCT)
Prior art keywords
lead screw
outer lead
tire
mechanisms
bead
Prior art date
Application number
PCT/CN2013/082270
Other languages
English (en)
French (fr)
Inventor
袁仲雪
王延书
闻德生
李彦海
胡勐
刘明
谭丽丽
周仪
Original Assignee
Yuan Zhongxue
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 Yuan Zhongxue filed Critical Yuan Zhongxue
Publication of WO2014201765A1 publication Critical patent/WO2014201765A1/zh

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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)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/24—Drums
    • B29D30/244—Drums for manufacturing substantially cylindrical tyre components with cores or beads, e.g. carcasses
    • B29D30/245—Drums for the single stage building process, i.e. the building-up of the cylindrical carcass and the toroidal expansion of it are realised on the same drum

Definitions

  • the present invention relates to a forming drum for a tire blank and a molding method thereof, and particularly to a reverse wrapping operation of a carcass assembly on a tire building machine, which belongs to the field of rubber machinery.
  • the forming drum assembled on the tire building machine is mainly used for performing the lamination and the reverse wrapping of the carcass assembly, specifically, the respective carcass components are sequentially attached to the outer circumference of the forming drum.
  • a cylindrical green layer is formed thereon, and then the inside of the cylindrical green layer is inflated and the bead portions on both sides thereof are reverse-wrapped to form a green tire.
  • the anti-packaging action of the sidewall portions of both sides is mostly realized by pneumatic control, and the factors such as unstable compressed air pressure and unstable flow control determine that the tire layers on both sides are difficult to move in the reverse package process.
  • the synchronization is ensured, which causes the asymmetry of the anti-package, which results in the asymmetry of the rubber layer on both sides, which has great influence on the dynamic balance and uniformity of the tire.
  • the tire green tire building drum and the molding method according to the present invention are provided with a screw drive mechanism for solving the above problem, and the reverse rotation operation is performed by using a power driven by a servo motor or other system to replace the existing one. Pneumatic control in the technology, so that the synchronization of the two-layer beading reverse action is fully realized.
  • a tire blank according to the present invention comprises a cylindrical green layer, and left and right beads which are sleeved on the outer circumference of the cylindrical layer and are spaced apart along the axial direction thereof.
  • the forming drum includes:
  • a spindle system having a hollow main shaft
  • the left and right drums are sleeved on the outer circumference of the hollow main shaft and can be axially moved relative to each other on the outer circumference, respectively having an outer circumference carrying the cylindrical layer, for carrying and fixing the left and right beads a left and right bead locking mechanism, and a left and right reverse wrapping mechanism for reversing the outer layer of the left and right bead;
  • a power system the output end of which is connected with the spindle system to drive the spindle system to perform a rotary motion
  • At least two lead screws at least one lead screw is matched with the left and right first wire mothers disposed on the left and right reverse-packing mechanisms, and is connected with the output end of the power system, and at least one lead screw is matched with the left and right bead locking mechanisms.
  • the left and right second cores disposed on the upper side cooperate; at least one clutch is disposed between the two lead screws and can realize the connection and separation of the two;
  • At least one brake when the two screws are separated, the screw that is matched with the left and right second cores is locked.
  • the output of the power system drives one of the lead screws to rotate, and at this time in the role of the clutch All the lead screws of the lower hollow main shaft are in a connected state, and the rotary motion is converted into the axial relative motion of the left and right drums by the first left and right first mainsprings matched thereto; and then in the hollow main shaft under the action of the clutch The lead screw is separated. Under the action of the brake, the lead screw matched with the left and right second mainsprings is locked, and the lead screw matched with the left and right first mainsprings continues to rotate under the action of the power system, driving the left The right anti-package mechanism completes the anti-packet action.
  • the hollow main shaft is provided with two lead screws, which are respectively an inner lead screw and an outer lead screw, and the outer lead screw has a hollow shaft shape, and the inner lead screw is sleeved therein.
  • the inner lead screw may be matched with the left and right second silk cores, and the outer lead screw cooperates with the left and right first silk cores.
  • the inner lead screw may be matched with the left and right first mainsprings, and the outer lead screw is matched with the left and right second mainsprings.
  • the hollow spindle is provided with three lead screws, respectively, an inner lead screw, a left outer lead screw, and a right outer lead screw, wherein the inner lead screw cooperates with the left and right first silk mothers.
  • the left outer lead screw is matched with the left second main thread
  • the right outer lead screw is matched with the right second main thread
  • the inner lead screw is provided with a clutch between the left and right outer lead screws
  • the left and right outer lead screws are respectively the same as the hollow main shaft. Left and right brakes are provided between them.
  • the left and right outer lead screws are hollow shafts, and the axes of the two are on the same straight line, and the inner sleeves are sleeved inside.
  • the present invention also realizes a method of manufacturing a tire blank described below:
  • the left and right side drums are axially moved along the outer surface of the hollow main shaft, and the middle layer between the left and right bead rings is raised, left and right. After the axial distance between the beads reaches a preset value, the left and right drums stop moving;
  • the forming drum of the present invention and the method for manufacturing the tire blank by using the forming drum have the following limited and beneficial effects: 1.
  • the reverse gear mechanism is driven by the screw drive mechanism to realize the reverse wrapping of the two side layers, ensuring The synchronization of the anti-packet, thus High tire performance indicators.
  • Figure 1 is a partial cross-sectional view of a tire blank of the present invention
  • Figure 2 is a partial cross-sectional view of the tire blank formed/placed on the forming drum of the present invention
  • Figure 3 is a partial cross-sectional view of the tire blank of the present invention after molding
  • Figure 4 is a schematic view showing the structure of a tire preform molding drum according to a first embodiment of the present invention.
  • Figure 5 is a schematic view showing the structure of a tire preform molding drum according to a second embodiment of the present invention
  • FIG. 6 is a schematic structural view of a third embodiment of a tire green tire building drum according to the present invention.
  • FIG. 7 is a schematic structural view of a fourth embodiment of a tire green tire building drum according to the present invention.
  • Cylindrical layer 1 left sidewall 11, right sidewall 12, intermediate layer 13;
  • the forming drum of the present invention includes a spindle system, left and right drums (41, 42), and a power system (7).
  • the spindle system comprises a hollow main shaft (3); the left and right drums (41, 42) are sleeved on the outer circumference of the hollow main shaft (3) and can be axially moved relative to each other on the outer circumference, respectively having a bearing cylinder
  • the left and right bead layers (11, 12) on the outside are reversed and the left and right turn-up mechanisms (61, 62); the output (71) of the power system (7) is connected to the spindle system. Drive the spindle system to make a rotary motion.
  • Each carcass component of the tire such as an inner liner, a side rubber, etc., is sequentially attached to the forming drum to form a cylindrical layer (1).
  • the outer circumference is sleeved with left and right beads (21, 22), or the cylindrical layer (1) and the left and right beads (21, 22) are formed on other equipment, and then sleeved in the molding On the outer circumference of the drum.
  • the positions of the left and right bead (21, 22) correspond to the positions of the left and right bead lock mechanisms (51, 52) in the left and right drums (41, 42), respectively.
  • the left and right bead locking mechanisms (51, 52) respectively fix the left and right beads (21, 22), so that it is locked, the left and right drums (41, 42) are axially moved along the outer surface of the hollow main shaft (3), and between the left and right bead (21, 22)
  • the middle layer (13) is raised, and the axial distance between the left and right beads (21, 22) reaches a preset value, and the left and right drums (41, 42) stop moving; then the left and right bead locks
  • the mechanism (51, 52) is locked so that the distance between the left and right beads (21, 22) is fixed, and then the left and right turn-up mechanisms (61, 62) are axially moved relative to each other.
  • the upper left and right side layers (11, 12) are subjected to a reverse wrapping motion so as to fit on both sides of the intermediate layer (13) after the bulging, thereby completing the
  • the hollow spindle (3) is provided with an inner lead screw (81) and an outer lead screw (82).
  • the outer lead screw (82) has a hollow shaft shape, and the inner lead screw (81) is sleeved inside.
  • the lead screw (82) is connected to the output end (71) of the power system (7), and performs a rotary motion under the driving action of the power system (7).
  • the outer lead screw (82) cooperates with the left and right first springs (611, 621) provided on the left and right turn-up mechanisms (61, 62) to drive the left and right turn-up mechanisms (61, 62) for axial direction. Relative movement.
  • the inner lead screw (81) cooperates with the left and right second female cores (511, 521) provided on the left and right bead lock mechanisms (51, 52), and the inner lead screw (81) rotates to drive the left and right bead lock mechanisms at all times. (51, 52) do axial relative motion.
  • a clutch (9) is disposed between the outer lead screw (82) and the inner lead screw (81) for connecting and separating the two; and the inner lead screw (81) and the hollow main shaft (3) are disposed.
  • the inner lead screw (81) and the outer lead screw (82) are connected by the clutch (9)
  • the two rotate together, thereby making the left and right drums ( 41, 42)
  • the axial relative movement is performed while the intermediate layer (13) is raised by the action of the internal gas.
  • the inner lead screw (81) and the outer lead screw (82) are separated by the clutch (9) while the brake (10) is locked.
  • the hollow spindle (3) is provided with an inner lead screw (81) and an outer lead screw (82).
  • the outer lead screw (82) has a hollow shaft shape, and the inner lead screw (81) is sleeved therein.
  • the lead screw (81) is connected to the output end (71) of the power system (7), under the driving force of the power system (7) Do a rotary motion.
  • the inner lead screw (81) cooperates with the left and right first springs (611, 621) provided on the left and right turn-up mechanisms (61, 62) to drive the left and right turn-up mechanisms (61, 62) for axial direction. Relative movement.
  • the outer lead screw (82) cooperates with the left and right second springs (511, 521) provided on the left and right bead lock mechanisms (51, 52), and the left and right bead locks can be driven when the outer lead screw (82) rotates.
  • the mechanism (51, 52) performs axial relative motion.
  • a clutch (9) is disposed between the outer lead screw (82) and the inner lead screw (81) for connecting and separating the two; and the outer lead screw (82) and the hollow main shaft (3) are disposed.
  • the inner lead screw (81) and the outer lead screw (82) are connected by the clutch (9)
  • the two rotate together, thereby making the left and right drums ( 41, 42)
  • the axial relative movement is performed while the intermediate layer (13) is raised by the action of the internal gas.
  • the inner lead screw (81) and the outer lead screw (82) are separated by the clutch (9) while the brake (10) is locked.
  • the inner lead screw (81) continues to rotate under the action of the power system (7), and the left and right turn-up mechanisms (61, 62) are driven to make axial relative movements, so that the left and right bead layers are located thereon ( 11,12)
  • the reverse wrap is applied to the raised intermediate layer (13) to complete the formation of the tire blank.
  • the inner main shaft (81), the left outer lead screw (821) and the right outer lead screw (822) are arranged in the hollow main shaft (3), and the left and right outer lead screws (821, 822) are hollow shaft-shaped.
  • the axes of the two are on the same straight line, and the inner sleeves are internally sleeved (81).
  • the inner lead screw (81) is connected to the output end (71) of the power system (7) and is rotated by the drive of the power system (7).
  • the inner lead screw (81) cooperates with the left and right first female cores (611, 621) provided on the left and right reverse wrapping mechanisms (61, 62), and can drive the left and right reverse wrapping mechanisms (61, 62) to be axial. Relative movement.
  • the left outer lead screw (821) cooperates with the left second female nut (511), the right outer lead screw (822) cooperates with the right second female nut (521), and the left and right outer lead screws (821, 822) can drive the left when rotated.
  • the right bead locking mechanism (51, 52) performs axial relative motion.
  • a clutch (9) is disposed between the inner lead screw (81) and the left and right outer lead screws (821, 822), and the clutch (9) is located between the opposite ends of the left and right outer lead screws (821, 822).
  • the connection and separation of the inner lead screw (81) and the left and right outer lead screws (821, 822) can be realized.
  • the left and right outer lead screws (821, 822) are respectively provided with left and right brakes (101, 102) between the hollow main shaft (3) for locking the left and right outer lead screws (821, 822).
  • the inner spindle (81), the left outer lead screw (821) and the right outer lead screw (822) are arranged in the hollow main shaft (3), and the left and right outer lead screws (821, 822) are hollow shaft-shaped.
  • the axes of the two are on the same straight line, and the inner sleeves are internally sleeved (81).
  • the inner lead screw (81) is connected to the output end (71) of the power system (7) and is rotated by the drive of the power system (7).
  • the inner lead screw (81) cooperates with the left and right first female cores (611, 621) provided on the left and right reverse wrapping mechanisms (61, 62), and can drive the left and right reverse wrapping mechanisms (61, 62) to be axial. Relative movement.
  • the left outer lead screw (821) cooperates with the left second female nut (511), the right outer lead screw (822) cooperates with the right second female nut (521), and the left and right outer lead screws (821, 822) can drive the left when rotated.
  • the right bead locking mechanism (51, 52) performs axial relative motion.
  • the inner lead screw (81) is provided with left and right clutches (91, 92) respectively between the left and right outer lead screws (821, 822), and the inner lead screw (81) and the left and right outer lead screws (821, 822) can be realized. ) the connection and separation.
  • the left and right outer lead screws (821, 822) are respectively provided with left and right brakes (101, 102) between the hollow main shaft (3) for locking the left and right outer lead screws (821, 822).
  • the left and right drums (41, 42) are made to move axially relative to each other while the intermediate layer (13) is raised by the action of internal gas.
  • the inner lead screw (81) and the left and right outer lead screws (821, 822) are separated by the left and right clutches (91, 92).
  • the left and right brakes (101, 102) lock the left and right outer lead screws (821, 822).
  • the inner lead screw (81) continues to rotate under the action of the power system (7), and the left and right turn-up mechanisms (61, 62) are driven to perform axial relative motion, so that the left and right bead layers are located thereon ( 11,12)
  • the reverse wrap is applied to the raised intermediate layer (13) to complete the formation of the tire blank.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)

Abstract

本发明所述的轮胎胎胚成型鼓及成型方法，设置有丝杠传动机构，通过采用伺服电机或其他系统提供的动力驱动丝杠来进行反包动作。所述成型鼓包括有主轴系统、左右胎圈和动力系统，其中主轴系统包括一中空主轴，中空主轴内设置有至少两根丝杠、至少一个离合器、至少一个制动器。本发明通过丝杠传动机构带动反包机构来实现两侧胎层的反包，确保了反包的同步性，提高了轮胎的性能指标，而且结构简单，易于加工制造。

Description

一种轮胎胎胚成型鼓及成型方法 技术领域
[0001] 本发明涉及一种用于轮胎胎胚的成型鼓及其成型方法， 具体地应用在轮胎成型机上 实施胎体组件的反包作业， 属于橡胶机械领域。
背景技术
[0002] 在现有轮胎的制造过程中， 装配在轮胎成型机上的成型鼓主要用于实施胎体组件的 贴合和反包， 具体为将各胎体组件依次贴合在成型鼓的外圆周上形成圆筒状胎层， 然后向圆 筒状胎层内部充气并对其两侧的胎层部分实施反包， 从而形成胎胚。
[0003] 现有技术中两侧胎层部分的反包动作大都采用气动控制来实现， 而压缩空气压力不 稳定、 流量控制不稳定等因素决定了两侧的胎层在反包过程中动作难以保证同步性， 造成反 包的不对称， 从而造成了两侧的胎层胶料受力不对称， 对轮胎的动平衡、 均匀性等指标影响 较大。
发明内容
[0004] 本发明所述的轮胎胎胚成型鼓及成型方法， 在于解决上述问题而设置丝杠传动机构， 通过采用伺服电机或其他系统提供的动力驱动丝杠来进行反包动作， 替代现有技术中的气动 控制， 从而完全实现两侧胎层反包动作的同步性。
[0005] 为实现上述发明目的， 本发明所述的轮胎胎胚包含圆筒状胎层、 以及套接在圆筒状 胎层的外圆周上并沿其轴向间隔分布的左、 右胎圈； 该成型鼓包括：
主轴系统， 具有一中空主轴；
左、 右侧鼓， 间隔套接在中空主轴的外圆周上并能在外圆周上做轴向相对移动， 分别具有承 载圆筒状胎层的外圆周、 用来承载并固定左、 右胎圈的左、 右胎圈锁定机构、 以及用来将位 于左、 右胎圈外侧的胎层进行反包的左、 右反包机构；
动力系统， 其输出端与主轴系统相连接， 驱动主轴系统做旋转运动；
与现有技术的不同之处在于， 中空主轴内设置以下部件：
至少两根丝杠， 至少一根丝杠同左、 右反包机构上设置的左、 右第一丝母相配合并同动力系 统的输出端相连接， 至少一根丝杠同左、 右胎圈锁定机构上设置的左、 右第二丝母相配合，; 至少一个离合器， 设置在两根丝杠之间且能实现二者的连接和分离；
至少一个制动器， 两根丝杠分离时将与左、 右第二丝母相配合的丝杠锁定。
[0006] 如上述基本方案， 动力系统的输出端驱动其中一根丝杠旋转， 此时在离合器的作用 下中空主轴的所有丝杠处于连接状态， 通过与其相配合的左、 右第一丝母， 将旋转运动转化 为左、 右侧鼓的轴向相对运动； 然后在离合器的作用下中空主轴内的丝杠分离， 在制动器的 作用下， 与左、 右第二丝母相配合的丝杠处于锁定状态， 与左、 右第一丝母相配合的丝杠在 动力系统作用下继续旋转， 带动左、 右反包机构完成反包动作。
[0007] 将本技术方案做进一步改进， 所述中空主轴内设有两根丝杠， 分别为内丝杠和外丝 杠， 外丝杠为中空轴状， 其内套接内丝杠。
[0008] 其中， 可以为内丝杠同左、 右第二丝母相配合， 所述外丝杠同左、 右第一丝母相配 合。
[0009] 此外， 也可以为内丝杠同左、 右第一丝母相配合， 所述外丝杠同左、 右第二丝母相 配合。
[0010] 将本技术方案做进一步改进， 所述中空主轴内设置三根丝杠， 分别为内丝杠、 左外 丝杠、 右外丝杠， 其中内丝杠同左、 右第一丝母相配合， 左外丝杠同左第二丝母相配合， 右 外丝杠同右第二丝母相配合， 内丝杠同左、 右外丝杠之间设置有离合器， 左、 右外丝杠分别 同中空主轴之间设置有左、 右制动器。
[0011] 其中， 可以为左、 右外丝杠为中空轴状， 二者的轴线位于同一直线上， 二者内部套接 内丝杠。
[0012] 将上述技术方案做进一步改进， 其中内丝杠同左外丝杠之间设置有左离合器， 内丝 杠同右外丝杠之间设置有右离合器。
[0013] 基于上述成型鼓的结构， 本发明还实现了下述轮胎胎胚的制造方法：
将圆筒状胎层形成 /放置于左、 右侧鼓的外圆周上；
将左、 右胎圈套接在圆筒状胎层的外圆周上与左、 右胎圈锁定机构相对应的位置；
左、 右胎圈锁定机构分别固定左、 右胎圈后， 左、 右侧鼓沿中空主轴的外表面做轴向相对运 动， 同时左、 右胎圈之间的中间胎层隆起， 左、 右胎圈之间的轴向距离达到预设值后左、 右 侧鼓停止运动；
锁定左、 右胎圈锁定机构， 左、 右反包机构做轴向相对运动， 对位于其上的左、 右侧胎层做 反包运动使其贴合在隆起后的中间胎层的两侧；
与现有技术的不同之处在于， 通过主轴系统和左、 右侧鼓之间设置的丝杠传动机构将主轴系 统的旋转运动转换为左、 右侧鼓的轴向相对运动、 以及左、 右反包机构的反包运动。
[0014] 本发明所述成型鼓及利用该成型鼓制造轮胎胎胚的方法， 具有以下有限和有益效果: 1、 通过丝杠传动机构带动反包机构来实现两侧胎层的反包， 确保了反包的同步性， 从而提 高了轮胎的性能指标。
[0015] 2、 结构简单， 易于加工制造。
[0016]
附图说明：
现结合附图对本发明做进一步的说明：
图 1 本发明所述轮胎胎胚的局部截面图
图 2本发明所述轮胎胎胚形成 /放置于成型鼓上的局部截面图
图 3 本发明所述轮胎胎胚成型后的局部截面图
图 4本发明所述轮胎胎胚成型鼓具体实施例一的结构示意图
图 5 本发明所述轮胎胎胚成型鼓具体实施例二的结构示意图
图 6 本发明所述轮胎胎胚成型鼓具体实施例三的结构示意图
图 7 本发明所述轮胎胎胚成型鼓具体实施例四的结构示意图
圆筒状胎层 1， 左侧胎层 11， 右侧胎层 12， 中间胎层 13;
左胎圈 21， 右胎圈 22;
中空主轴 3;
左侧鼓 41， 右侧鼓 42;
左胎圈锁定机构 51， 右胎圈锁定机构 52， 左第二丝母 511， 右第二丝母 521 ;
左反包机构 61， 右反包机构 62， 左第一丝母 611， 右第一丝母 621 ;
动力系统 7， 输出端 71 ;
内丝杠 81， 外丝杠 82， 左外丝杠 821， 右外丝杠 822;
离合器 9， 左离合器 91， 右离合器 92;
制动器 10， 左制动器 101， 右制动器 102 具体实施方式
[0017] 如图 1、 2、 3所示， 本发明所述的成型鼓包括主轴系统、 左、 右侧鼓 (41,42)以及动力 系统 (7)。 其中主轴系统包括一中空主轴 (3); 左、 右侧鼓 (41,42)间隔套接在中空主轴 (3)的外 圆周上并能在外圆周上做轴向相对移动， 分别具有承载圆筒状胎层 (1)的外圆周、 用来承载 并固定左、 右胎圈 (21,22)的左、 右胎圈锁定机构 (51,52)、 以及用来将位于左、 右胎圈 (21,22) 外侧的左、 右侧胎层 (11,12)进行反包的左、 右反包机构 (61,62); 动力系统 (7)的输出端 (71)与 主轴系统相连接， 驱动主轴系统做旋转运动。
[0018] 轮胎的各胎体组件如内衬层、 胎侧胶等依次贴合在成型鼓上形成圆筒状胎层 (1)， 其 外圆周上套接有左、 右胎圈 (21,22)， 或者该圆筒状胎层 (1)和左、 右胎圈 (21,22)形成于其它设 备上， 然后套接在该成型鼓的外圆周上。 其中， 左、 右胎圈 (21,22)的位置分别对应左、 右侧 鼓 (41,42)中的左、 右胎圈锁定机构 (51,52)的位置。
[0019] 当圆筒状胎层 (1)和左、 右胎圈 (21,22)置于成型鼓上之后， 左、 右胎圈锁定机构 (51,52) 分别固定住左、 右胎圈 (21,22)， 使其处于锁定状态， 左、 右侧鼓 (41,42)沿中空主轴 (3)的外表 面做轴向相对运动， 同时左、 右胎圈 (21,22)之间的中间胎层 (13)隆起， 左、 右胎圈 (21,22)之 间的轴向距离达到预设值后左、 右侧鼓 (41,42)停止运动； 然后左、 右胎圈锁定机构 (51,52)被 锁住， 使左、 右胎圈 (21,22)之间的距离固定不变， 然后左、 右反包机构 (61,62)做轴向相对运 动， 对位于其上的左、 右侧胎层 (11,12)做反包运动使其贴合在隆起后的中间胎层 (13)的两侧， 从而完成轮胎胎胚的成型。
[0020] 上述左、 右反包机构 (61,62)的轴向相对运动和左、 右侧胎层 (11,12)的反包运动可以通 过以下几种实施例中的机构来实现：
实施例 1
如图 4 所示， 中空主轴 (3)内设置内丝杠 (81)、 外丝杠 (82)， 外丝杠 (82)为中空轴状， 其内套 接内丝杠 (81)， 外丝杠 (82)同动力系统 (7)的输出端 (71)相连接， 在动力系统 (7)的驱动作用下 做旋转运动。 外丝杠 (82)同同左、 右反包机构 (61,62)上设置的左、 右第一丝母 (611,621)相配 合， 可驱动左、 右反包机构 (61,62)做轴向相对运动。 内丝杠 (81)同左、 右胎圈锁定机构 (51,52)上设置的左、 右第二丝母 (511,521)相配合， 内丝杠 (81)旋转时刻驱动左、 右胎圈锁定 机构 (51,52)做轴向相对运动。
[0021] 外丝杠 (82)和内丝杠 (81)之间设置有离合器 (9)， 用来实现二者的连接和分离； 内丝杠 (81)和中空主轴 (3)之间设置有制动器 (10)， 用来锁住内丝杠 (81)。 当内丝杠 (81)和外丝杠 (82) 在离合器 (9)的作用下处于连接状态时， 在动力系统 (7)的作用下， 二者一起旋转， 从而使左、 右侧鼓 (41,42)做轴向相对运动， 同时中间胎层 (13)在内部气体的作用下隆起。 当左、 右侧鼓 (41,42)之间的距离达到预设值时， 内丝杠 (81)和外丝杠 (82)在离合器 (9)的作用下分离， 同时 制动器 (10)锁住内丝杠 (81)。 此时外丝杠 (82)在动力系统 (7)的作用下继续旋转， 驱动左、 右 反包机构 (61,62)做轴向相对运动， 使位于其上的左、 右侧胎层 (11,12)反包贴合在已隆起的中 间胎层 (13)上， 完成轮胎胎胚的成型。
[0022] 实施例 2
如图 5 所示， 中空主轴 (3)内设置内丝杠 (81)、 外丝杠 (82)， 外丝杠 (82)为中空轴状， 其内套 接内丝杠 (81)， 内丝杠 (81)同动力系统 (7)的输出端 (71)相连接， 在动力系统 (7)的驱动作用下 做旋转运动。 内丝杠 (81)同同左、 右反包机构 (61,62)上设置的左、 右第一丝母 (611,621)相配 合， 可驱动左、 右反包机构 (61,62)做轴向相对运动。 外丝杠 (82)同左、 右胎圈锁定机构 (51,52)上设置的左、 右第二丝母 (511,521)相配合， 外丝杠 (82)旋转时可驱动左、 右胎圈锁定 机构 (51,52)做轴向相对运动。
[0023] 外丝杠 (82)和内丝杠 (81)之间设置有离合器 (9)， 用来实现二者的连接和分离； 外丝杠 (82)和中空主轴 (3)之间设置有制动器 (10)， 用来锁住外丝杠 (82)。 当内丝杠 (81)和外丝杠 (82) 在离合器 (9)的作用下处于连接状态时， 在动力系统 (7)的作用下， 二者一起旋转， 从而使左、 右侧鼓 (41,42)做轴向相对运动， 同时中间胎层 (13)在内部气体的作用下隆起。 当左、 右侧鼓 (41,42)之间的距离达到预设值时， 内丝杠 (81)和外丝杠 (82)在离合器 (9)的作用下分离， 同时 制动器 (10)锁住外丝杠 (82)。 此时内丝杠 (81)在动力系统 (7)的作用下继续旋转， 驱动左、 右 反包机构 (61,62)做轴向相对运动， 使位于其上的左、 右侧胎层 (11,12)反包贴合在已隆起的中 间胎层 (13)上， 完成轮胎胎胚的成型。
[0024] 实施例 3
如图 6 所示， 中空主轴 (3)内设置内丝杠 (81)、 左外丝杠 (821)、 右外丝杠 (822)， 左、 右外丝 杠 (821,822)为中空轴状， 二者的轴线位于同一直线上， 二者内部套接内丝杠 (81)。 内丝杠 (81) 同动力系统 (7)的输出端 (71)相连接， 在动力系统 (7)的驱动作用下做旋转运动。 其中内丝杠 (81)同左、 右反包机构 (61,62)上设置的左、 右第一丝母 (611,621)相配合， 可驱动左、 右反包 机构 (61,62)做轴向相对运动。 左外丝杠 (821)同左第二丝母 (511)相配合， 右外丝杠 (822)同右 第二丝母 (521)相配合， 左、 右外丝杠 (821,822)旋转时可驱动左、 右胎圈锁定机构 (51,52)做轴 向相对运动。
[0025] 内丝杠 (81)同左、 右外丝杠 (821,822)之间设置有离合器 (9)， 该离合器 (9)位于左、 右外 丝杠 (821,822)两个相对的端部之间， 可实现内丝杠 (81)和左、 右外丝杠 (821,822)的连接和分 离。 左、 右外丝杠 (821,822)分别同中空主轴 (3)之间设置有左、 右制动器 (101,102)， 用来锁住 左、 右外丝杠 (821,822)。 当内丝杠 (81)同左、 右外丝杠 (821,822)在离合器 (9)的作用下处于连 接状态时， 在动力系统 (7)的作用下， 三者一起旋转， 从而使左、 右侧鼓 (41,42)做轴向相对运 动， 同时中间胎层 (13)在内部气体的作用下隆起。 当左、 右侧鼓 (41,42)之间的距离达到预设 值时， 内丝杠 (81)和左、 右外丝杠 (821,822)在离合器 (9)的作用下分离， 同时左、 右制动器 (101, 102)锁住左、 右外丝杠 (821,822)。 此时内丝杠 (81)在动力系统 (7)的作用下继续旋转， 驱 动左、 右反包机构 (61,62)做轴向相对运动， 使位于其上的左、 右侧胎层 (11,12)反包贴合在已 隆起的中间胎层 (13)上， 完成轮胎胎胚的成型。 [0026] 实施例 4
如图 7 所示， 中空主轴 (3)内设置内丝杠 (81)、 左外丝杠 (821)、 右外丝杠 (822)， 左、 右外丝 杠 (821,822)为中空轴状， 二者的轴线位于同一直线上， 二者内部套接内丝杠 (81)。 内丝杠 (81) 同动力系统 (7)的输出端 (71)相连接， 在动力系统 (7)的驱动作用下做旋转运动。 其中内丝杠 (81)同左、 右反包机构 (61,62)上设置的左、 右第一丝母 (611,621)相配合， 可驱动左、 右反包 机构 (61,62)做轴向相对运动。 左外丝杠 (821)同左第二丝母 (511)相配合， 右外丝杠 (822)同右 第二丝母 (521)相配合， 左、 右外丝杠 (821,822)旋转时可驱动左、 右胎圈锁定机构 (51,52)做轴 向相对运动。
[0027] 内丝杠 (81)分别同左、 右外丝杠 (821,822)之间设置有左、 右离合器 (91,92)， 可实现内 丝杠 (81)和左、 右外丝杠 (821,822)的连接和分离。 左、 右外丝杠 (821,822)分别同中空主轴 (3) 之间设置有左、 右制动器 (101, 102)， 用来锁住左、 右外丝杠 (821,822)。 当内丝杠 (81)同左、 右外丝杠 (821,822)在左、 右离合器 (91,92)的作用下处于连接状态时， 在动力系统 (7)的作用下， 三者一起旋转， 从而使左、 右侧鼓 (41,42)做轴向相对运动， 同时中间胎层 (13)在内部气体的 作用下隆起。 当左、 右侧鼓 (41,42)之间的距离达到预设值时， 内丝杠 (81)和左、 右外丝杠 (821,822) 左、 右离合器 (91,92)的作用下分离， 同时左、 右制动器 (101, 102)锁住左、 右外丝 杠 (821,822)。 此时内丝杠 (81)在动力系统 (7)的作用下继续旋转， 驱动左、 右反包机构 (61,62) 做轴向相对运动， 使位于其上的左、 右侧胎层 (11,12)反包贴合在已隆起的中间胎层 (13)上， 完成轮胎胎胚的成型。

Claims

WO 2014/201765 , ^ , ■、 ■、 PCT/CN2013/082270 权 利 要 求 书
1. 一种轮胎胎胚成型鼓， 该轮胎胎胚包含圆筒状胎层 (1)、 以及套接在圆筒状胎层 (1)的外圆 周上并沿其轴向间隔分布的左、 右胎圈 (21,22); 该成型鼓包括：
主轴系统， 具有一中空主轴 (3);
左、 右侧鼓 (41,42)， 间隔套接在中空主轴 (3)的外圆周上并能在外圆周上做轴向相对移动， 分 别具有承载圆筒状胎层 (1)的外圆周、 用来承载并固定左、 右胎圈 (21,22)的左、 右胎圈锁定机 构 (51,52)、 以及用来将位于左、 右胎圈 (21,22)外侧的左、 右侧胎层 (11,12)进行反包的左、 右 反包机构 (61,62);
动力系统 (7)， 其输出端 (71)与主轴系统相连接， 驱动主轴系统做旋转运动；
其特征在于中空主轴 (3)内设置以下部件：
至少两根丝杠， 至少一根丝杠同左、 右反包机构 (61,62)上设置的左、 右第一丝母 (611,621)相 配合并同动力系统 (7)的输出端 (71)相连接， 至少一根丝杠同左、 右胎圈锁定机构 (51,52)上设 置的左、 右第二丝母 (511,521)相配合，；
至少一个离合器， 设置在两根丝杠之间且能实现二者的连接和分离；
至少一个制动器， 两根丝杠分离时将与左、 右第二丝母 (511,521)相配合的丝杠锁定。
2. 按照权利要求 1所述的轮胎胎胚成型鼓， 其特征在于所述中空主轴 (3)内设置内丝杠 (81)、 外丝杠 (82)， 外丝杠 (82)为中空轴状， 其内套接内丝杠 (81)。
3. 按照权利要求 2所述的制造轮胎胎胚的成型鼓， 其特征在于所述内丝杠 (81)同左、 右第二 丝母 (511,521)相配合， 所述外丝杠 (82)同左、 右第一丝母 (611,621)相配合。
4. 按照权利要求 2 所述的轮胎胎胚成型鼓， 其特征在于所述内丝杠 (81)同左、 右第一丝母 (611,621)相配合， 所述外丝杠 (82)同左、 右第二丝母 (511,521)相配合。
5. 按照权利要求 1所述的轮胎胎胚成型鼓， 其特征在于所述中空主轴 (3)内设置内丝杠 (81)、 左外丝杠 (821)、 右外丝杠 (822)， 其中内丝杠 (81)同左、 右第一丝母 (611,621)相配合， 左外丝 杠 (821)同左第二丝母 (511)相配合， 右外丝杠 (822)同右第二丝母 (521)相配合， 内丝杠 (81)同 左、 右外丝杠 (821,822)之间设置有离合器 (9)， 左、 右外丝杠 (821,822)分别同中空主轴 (3)之 间设置有左、 右制动器 (101, 102)。
6. 按照权利要求 5 所述的轮胎胎胚成型鼓， 其特征在于左、 右外丝杠 (821,822)为中空轴状， 二者的轴线位于同一直线上， 二者内部套接内丝杠 (81)。
7. 按照权利要求 5所述的轮胎胎胚成型鼓， 其特征在于内丝杠 (81)同左外丝杠 (821)之间设置 有左离合器 (91)， 内丝杠同右外丝杠 (822)之间设置有右离合器 (92)。
8. 按照权利要求 1至 7所述的任一轮胎胎胚成型鼓的成型方法， 包含以下步骤： 将圆筒状胎层 (1)形成 /放置于左、 右侧鼓 (41,42)的外圆周上；
将左、 右胎圈 (21,22)套接在圆筒状胎层 (1)的外圆周上与左、 右胎圈锁定机构 (51,52)相对应的 位置；
左、 右胎圈锁定机构 (51,52)分别固定左、 右胎圈 (21,22)后， 左、 右侧鼓 (41,42)沿中空主轴 (3) 的外表面做轴向相对运动， 同时左、 右胎圈 (21,22)之间的中间胎层 (13)隆起， 左、 右胎圈 (21,22)之间的轴向距离达到预设值后左、 右侧鼓 (41,42)停止运动；
锁定左、 右胎圈锁定机构 (51,52)， 左、 右反包机构 (61,62)做轴向相对运动， 对位于其上的左、 右侧胎层 (11,12)做反包运动使其贴合在隆起后的中间胎层 (13)的两侧；
其特征在于： 通过主轴系统和左、 右侧鼓 (41,42)之间设置的丝杠传动机构将主轴系统的旋转 运动转换为左、 右侧鼓 (41,42)的轴向相对运动、 以及左、 右反包机构 (61,62)的反包运动。
PCT/CN2013/082270 2013-06-18 2013-08-26 一种轮胎胎胚成型鼓及成型方法 WO2014201765A1 (zh)

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EP3165352A1 (en) * 2015-11-09 2017-05-10 Hankook Tire Co., Ltd. Power transmission device of green tire forming drum apparatus

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