WO2022143792A1 - 成型鼓的中鼓组件、成型鼓和中鼓组件的中鼓块更换方法 - Google Patents

成型鼓的中鼓组件、成型鼓和中鼓组件的中鼓块更换方法 Download PDF

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Publication number
WO2022143792A1
WO2022143792A1 PCT/CN2021/142573 CN2021142573W WO2022143792A1 WO 2022143792 A1 WO2022143792 A1 WO 2022143792A1 CN 2021142573 W CN2021142573 W CN 2021142573W WO 2022143792 A1 WO2022143792 A1 WO 2022143792A1
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WO
WIPO (PCT)
Prior art keywords
drum
fastener
middle drum
block
shoulder
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PCT/CN2021/142573
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English (en)
French (fr)
Inventor
孙孝松
俞一航
宋建玲
Original Assignee
软控股份有限公司
青岛软控机电工程有限公司
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Application filed by 软控股份有限公司, 青岛软控机电工程有限公司 filed Critical 软控股份有限公司
Priority to EP21914524.0A priority Critical patent/EP4272941A1/en
Priority to KR1020237023399A priority patent/KR20230142461A/ko
Priority to JP2023540816A priority patent/JP2024503362A/ja
Publication of WO2022143792A1 publication Critical patent/WO2022143792A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/24—Drums
    • 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
    • B29D30/26—Accessories or details, e.g. membranes, transfer rings

Definitions

  • the present application relates to the technical field of tire processing, and in particular, to a middle drum assembly of a building drum, a building drum and a method for replacing a middle drum block of the middle drum assembly.
  • the length of the toothed block of the shoulder part of the forming drum needs to be replaced with different sizes of toothed blocks according to different tire specifications. When it is necessary to remove the connecting screws, it takes a lot of time and affects the efficiency.
  • the main purpose of the present application is to provide a middle drum assembly of a forming drum, and a method for replacing a middle drum block of the forming drum and the middle drum assembly, so as to solve the problem of time-consuming and laborious replacement of the toothed block of the drum shoulder part in the prior art.
  • a middle drum assembly for a forming drum comprising: a drum shoulder; a middle drum block, the middle drum block has a mounting groove and a fixing hole; a first fastening
  • the first fastener is movably arranged in the drum shoulder and can move along the axial direction of the forming drum.
  • the first fastener has a stepped surface.
  • the middle drum block When the middle drum block is connected to the drum shoulder along the radial direction of the forming drum, The installation groove is aligned with the first fastener, the middle drum block squeezes the step surface and makes a part of the first fastener protrude into the installation groove; the second fastener, a part of the second fastener passes through the drum.
  • the fixing hole In the shoulder, when a part of the first fastener extends into the installation groove, the fixing hole is aligned with the second fastener, the middle drum block is close to the drum shoulder along the axial direction of the forming drum, and the second fastener is exposed on the drum shoulder. A part of it protrudes into the fixing hole.
  • the middle drum block is arc-shaped, and the installation groove communicates with the arc-shaped inner side wall and the arc-shaped end surface.
  • the first fastener includes a large-diameter section and a small-diameter section that are connected in sequence, a stepped surface is formed between the large-diameter section and the small-diameter section, and the small-diameter section extends into the drum shoulder, and the large-diameter section and the small-diameter section form a stepped surface.
  • the diameter section can extend into the mounting groove.
  • the installation groove includes a diameter-expanding section and a diameter-reducing section that are communicated in sequence, and the diameter-reducing section is closer to the end face of the drum shoulder than the diameter-expanding section, and the large-diameter section extends into the diameter-expanding section, The small diameter section extends into the diameter reducing section, and the stepped surface abuts on the end face of the diameter reducing section facing the expanding diameter section.
  • an inclined surface is provided at the outer edge of the installation groove, and along the direction in which the middle drum block is connected to the drum shoulder in the radial direction of the forming drum, the inclined surface is inclined in a direction away from the drum shoulder.
  • the inclined surface squeezes the step surface, and the first fastener moves in the direction extending out of the drum shoulder and extends into the installation groove.
  • the middle drum assembly further includes an elastic piece, two ends of the elastic piece are respectively in contact with the drum shoulder and the first fastener, and provide the first fastener with a direction extending into the drum shoulder. Elasticity of directional movement.
  • the middle drum block includes: a toothed part, the toothed part is located on the outer side of the middle drum block; a connecting part, the connection part is located on the inner side of the end of the toothed part, the installation groove and the fixing hole are both Opened on the end face of the connection part.
  • the installation groove is a U-shaped groove
  • the first fastener is a screw with a screw head
  • the second fastener is a pin
  • a forming drum including the above-mentioned middle drum assembly.
  • a method for replacing a middle drum block of a middle drum assembly wherein the middle drum assembly includes a drum shoulder, a middle drum block, and a first fastener and a The second fastener, the middle drum block has an installation groove and a fixing hole, and the replacement method of the middle drum block includes: the middle drum block is close to one side of the drum shoulder along the radial direction of the middle drum assembly, and forms a gap with the end face of the drum shoulder, and then The middle drum block continues to move toward the center of the middle drum assembly. During the movement, the middle drum block squeezes the stepped surface of the first fastener so that one end of the first fastener is away from the drum shoulder and extends into the installation groove.
  • the middle drum block moves until the fixing hole is aligned with the second fastener, the middle drum block approaches the end face of the drum shoulder along the axial direction of the middle drum assembly, a part of the first fastener retracts the drum shoulder, and the second fastener extends. into the fixing hole.
  • the first fastener includes a large-diameter section and a small-diameter section connected in sequence, a stepped surface is formed between the large-diameter section and the small-diameter section, and when the middle drum block presses the stepped surface, the first The fastener moves in the direction extending out of the drum shoulder, and the large diameter section extends into the installation groove.
  • an inclined surface is provided at the outer edge of the installation groove, and when the middle drum block continues to move toward the center of the middle drum assembly, the inclined surface presses the stepped surface.
  • the middle drum assembly further includes an elastic piece.
  • the first fastener compresses the elastic piece, and the length of the elastic piece is shortened.
  • the first fastener releases the elastic piece, and the length of the elastic piece becomes longer.
  • the middle drum block is provided with a mounting groove and a fixing hole, and a first fastener and a second fastener are respectively matched with each other. on the shoulder of the drum.
  • the middle drum block squeezes the stepped surface of the first fastener.
  • the first fastener moves in the direction extending out of the drum shoulder, one end of the first fastener can extend into the installation groove, and there is a distance between the end face of the middle drum block and the end face of the drum shoulder, The distance is not less than the distance that the second fastener is exposed to the drum shoulder, so that the middle drum block can avoid the movement of the second fastener.
  • the middle drum block moves radially in place, the fixing hole is aligned with the second fastener.
  • the middle drum block When the middle drum block is pushed axially, the middle drum block moves in the direction close to the drum shoulder, the first fastener moves in the direction of retracting the drum shoulder, and the second fastener extends into the fixing hole, so that the middle drum block moves in the direction of retracting the drum shoulder.
  • the radial movement of the block is locked by the second fastener, while the axial movement requires an external force to pull the middle drum block, so that the middle drum block can be installed on the drum shoulder.
  • it is necessary to disassemble the middle drum block first pull the middle drum block axially with external force to make the second fastener disengage from the fixing hole, and then lift the middle drum block radially to make the first fastener disengage from the installation groove , the middle drum block can be removed and replaced.
  • the above arrangement makes the disassembly and assembly of the middle drum block without removing screws, which can be quickly disassembled and assembled, which greatly improves the replacement efficiency, and the disassembly and assembly process only requires one pressing, one pushing, one pulling and one lifting, which is convenient for disassembly and assembly, saving time and effort. .
  • Fig. 1 shows the sectional view of the middle drum assembly of the present application at the installation groove
  • Fig. 2 shows the sectional view of the middle drum assembly in Fig. 1 at the fixing hole
  • FIG. 3 shows a schematic structural diagram of a middle drum block of the middle drum assembly in FIG. 1 .
  • drum shoulder 20
  • middle drum block 21, installation slot; 22, fixing hole; 23, inclined surface; 24, toothed part; 25, connecting part; 30, first fastener; 40, second fastening Pieces; 50, elastic pieces.
  • the present application provides a middle drum assembly of a forming drum, a forming drum and a middle drum block replacement method of the middle drum assembly.
  • the forming drum has the following middle drum assembly.
  • a middle drum assembly of a forming drum includes a drum shoulder 10, a middle drum block 20, a first fastener 30 and a second fastener 40, and the middle drum block 20 has a mounting groove 21 and the fixing hole 22;
  • the first fastener 30 is movably arranged in the drum shoulder 10 and can move along the axial direction of the forming drum, the first fastener 30 has a stepped surface, and the middle drum block 20 is along the radial direction of the forming drum
  • the installation groove 21 is aligned with the first fastener 30, the middle drum block 20 squeezes the step surface and a part of the first fastener 30 extends into the installation groove 21;
  • the second fastening A part of the part 40 is penetrated in the drum shoulder 10, when a part of the first fastener 30 extends into the installation groove 21, the fixing hole 22 is aligned with the second fastener 40, and the middle drum block 20 is along the axis of the forming drum To approach the drum shoulder 10
  • the installation groove 21 and the fixing hole 22 are provided on the middle drum block 20, and the first fastener 30 and the second fastener 40 are respectively matched with the first fastener 30 and the second fastener. 40 is pre-threaded on the drum shoulder 10.
  • the middle drum block 20 needs to be installed, first move the middle drum block 20 to the side of the drum shoulder 10 along the radial direction of the forming drum, and press down the middle drum block 20. During this process, the middle drum block 20 squeezes the first tight
  • the stepped surface of the fastener 30 makes the first fastener 30 move in the direction extending out of the drum shoulder 10, and one end of the first fastener 30 can extend into the installation groove 21, while the end surface of the middle drum block 20 is connected to the mounting groove 21.
  • a distance is formed between the end faces of the drum shoulder 10, and the distance is not less than the distance that the second fastener 40 is exposed to the drum shoulder 10, so that the middle drum block 20 can avoid the movement of the second fastener 40, and the middle drum block 20
  • the fixing hole 22 is aligned with the second fastener 40.
  • the middle drum block 20 is pushed axially, so that the middle drum block 20 moves in the direction close to the drum shoulder 10, and the first fastener 30 retracts.
  • the second fastener 40 extends into the fixing hole 22, so that the radial movement of the middle drum block 20 is locked by the second fastener 40, and the axial movement requires external force to pull.
  • the middle drum block 20 can be carried out, so that the middle drum block 20 can be installed on the drum shoulder 10.
  • the external force first pulls the middle drum block 20 axially, so that the second fastener 40 is detached from the fixing hole 22, and then the middle drum block 20 is radially lifted, so that the first fastener 30
  • the middle drum block 20 can be removed and replaced by disengaging it from the installation groove 21 .
  • the above arrangement makes the disassembly and assembly of the middle drum block 20 do not require disassembly and assembly, which can be quickly disassembled and assembled, which greatly improves the replacement efficiency, and the disassembly and assembly process only requires one pressing, one pushing, one pulling and one lifting, which is convenient for disassembly and assembly and saves time. Effortless.
  • the axial direction and the radial direction mentioned in this embodiment both refer to the axial direction and the radial direction of the forming drum, more specifically, the axial direction and the radial direction of the main shaft of the forming drum.
  • the middle drum block 20 is in an arc shape, and the arc shape cooperates with other structures of the forming drum, such as a backing plate, a slider, etc., and the installation groove 21 is connected with the arc-shaped inner side wall and the arc-shaped end surface,
  • the first fastener 30 extends into the installation groove 21 from the arc-shaped inner side wall, and the end face is connected to avoid the first fastener 30 to ensure that the first fastener 30 extends into the installation groove 21 .
  • the installation groove 21 of this embodiment is arranged in a U shape, and the open side of the U shape faces the inner side of the arc-shaped middle drum block 20 .
  • the length directions of the installation grooves 21 and the fixing holes 22 and the axial directions of the first fasteners 30 and the second fasteners 40 are all along the axial direction of the forming drum, and the sliding direction of the first fasteners 30 is also formed.
  • the first fastener 30 includes a large-diameter section and a small-diameter section connected in sequence, a stepped surface is formed between the large-diameter section and the small-diameter section, and the small-diameter section extends into the drum shoulder 10, and the large-diameter section It can extend into the installation slot 21 .
  • the first fastener 30 in this embodiment uses a screw.
  • the screw head with a larger diameter at one end of the screw is the large diameter section, and the other parts are the small diameter section.
  • the small diameter section passes through the drum shoulder 10, and the large diameter section is exposed to the drum.
  • the outer edge of the installation groove 21 will squeeze the stepped surface formed between the large diameter section and the small diameter section.
  • the first fastener 30 is pulled out of the drum shoulder 10 for a certain distance to achieve the effect of avoiding the second fastener 40 and the subsequent fastening of the middle drum block 20 .
  • the installation groove 21 includes a diameter-expanding section and a diameter-reducing section that communicate in sequence, and the diameter-reducing section is closer to the end face of the drum shoulder 10 than the diameter-expanding section, when the middle drum block 20 is pressed down.
  • the large-diameter section extends into the enlarged-diameter section
  • the small-diameter section extends into the reduced-diameter section, so that the stepped surface of the first fastener 30 can abut on the end face of the reduced-diameter section toward the enlarged-diameter section, thereby achieving
  • the stopper between the first fastener 30 and the middle drum block 20 cooperates, and when the middle drum block 20 is pulled away from the drum shoulder 10, the end face of the reduced diameter section can drive the first tensioner by squeezing the stepped surface.
  • Firmware 30 movement
  • the outer edge of the installation groove 21, that is, the corner of the installation groove 21 on the inner side of the end face of the middle drum block 20, is provided with an inclined surface 23, and the middle drum block 20 is connected to the drum in the radial direction of the forming drum along the middle drum block 20.
  • the inclined surface 23 is inclined in a direction away from the drum shoulder 10, so that when the middle drum block 20 is pressed down, when the middle drum block 20 is connected to the drum shoulder 10 in the radial direction of the forming drum, the inclined surface 23 squeezes.
  • the arrangement of the inclined surface 23 enables the first fastener 30 to smoothly squeeze and pull out the first fastener 30 to ensure the smoothness of the pressing action.
  • the middle drum assembly further includes an elastic member 50.
  • the elastic member 50 is a spring and is sleeved on the first fastener 30.
  • the two ends of the elastic member 50 are respectively connected to the drum shoulder 10 and the first fastener.
  • 30 abuts, and provides the elastic force for the first fastener 30 to move in the direction of extending into the drum shoulder 10, so that on the one hand, the stop surface of the middle drum block 20 is always kept in contact with the middle drum block 20 during disassembly and assembly. , when the middle drum block 20 moves axially, it always keeps synchronous movement with the first fastener 30.
  • the elastic member 50 gives the middle drum block 20 a pulling force close to the drum shoulder 10 through the first fastener 30. , so that the middle drum block 20 is always in close contact with the drum shoulder 10, and the middle drum block 20 is always in a position close to the drum shoulder 10 when it is not subject to external force, or is subjected to an external force that does not exceed a certain size, and the second fastener 40 always extends into the fixing hole 22 to ensure the stability of the middle drum block 20 after installation.
  • the elastic force of the spring needs to be greater than the axial shaking force of the middle drum block 20 when the forming drum is in normal use, so as to ensure the stability of the middle drum block 20 during normal operation of the forming drum, so that the middle drum block 20 can only be used when the operator It can only be removed when dismantling.
  • the elastic member 50 in addition to using the elastic member 50, other methods can also be used to achieve the above effect, for example, the first fastener 30 is replaced with an elastic member, and the above effect can be achieved by using its own elasticity; or other methods can be used.
  • the middle drum block 20 in this embodiment is a toothed block, which includes a toothed portion 24 and a connecting portion 25.
  • the toothed portion 24 is located on the outer side of the middle drum block 20 and is used for tire processing; the connecting portion 25 is located in the toothed portion.
  • the inner side of the end portion 24 is used to cooperate with the drum shoulder 10 and other components, and the mounting groove 21 and the fixing hole 22 are both opened on the end surface of the connecting portion 25 .
  • Both sides of the 21 are provided with at least one fixing hole 22, so that the force of the middle drum block 20 is balanced and the stability of the middle drum block 20 is ensured when the forming drum is working normally.
  • the fixing hole 22 in this embodiment is set as a blind hole, and the second fastener 40 is a pin of equal diameter.
  • the number and specific selection of the above components can also be changed as required.
  • This embodiment also provides a method for replacing a middle drum block of a middle drum assembly.
  • the middle drum assembly is the above-mentioned middle drum assembly, which includes a drum shoulder 10, a middle drum block 20, and a first A fastener 30 and a second fastener 40, the middle drum block 20 has an installation groove 21 and a fixing hole 22, the replacement method of the middle drum block 20 includes: when the middle drum block 20 is installed, the middle drum block 20 is installed along the middle drum assembly. The radial direction is close to one side of the drum shoulder 10, and forms a gap with the end face of the drum shoulder 10, and then the middle drum block 20 continues to move toward the center of the middle drum assembly.
  • the middle drum block 20 squeezes the first tightening
  • the stepped surface of the component 30 makes one end of the first fastener 30 away from the drum shoulder 10 and extends into the installation groove 21. 20 is close to the end face of the drum shoulder 10 along the axial direction of the middle drum assembly, a part of the first fastener 30 retracts into the drum shoulder 10 , and the second fastener 40 extends into the fixing hole 22 .
  • the middle drum block 20 needs to be removed, the above process can be reversed.
  • the first fastener 30 since the first fastener 30 includes a large-diameter section and a small-diameter section connected in sequence, and a stepped surface is formed between the large-diameter section and the small-diameter section, when the middle drum block 20 presses the stepped surface, the first The fastener 30 moves in the direction extending out of the drum shoulder 10 under the pressing of the middle drum block 20 , and the large diameter section extends into the installation groove 21 .
  • an inclined surface 23 is provided at the outer edge of the installation groove 21, and when the middle drum block 20 continues to move toward the center of the middle drum assembly, the inclined surface 23 squeezes the stepped surface.
  • the middle drum assembly further includes an elastic member 50.
  • the first fastener 30 compresses the elastic member 50, and the length of the elastic member 50 is shortened.
  • the first fastener 30 releases the elastic member 50, and the length of the elastic member 50 becomes longer. The effect of restricting the axial movement of the middle drum block 20 is achieved by the elastic member 50 .
  • a plurality in the above-mentioned embodiments refers to at least two.
  • the disassembly and assembly of the middle drum block does not require disassembly of screws, which can be quickly disassembled and assembled, which greatly improves the replacement efficiency;

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  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)

Abstract

本申请提供了一种成型鼓的中鼓组件、成型鼓和中鼓组件的中鼓块更换方法。其中，中鼓组件包括：鼓肩；中鼓块，中鼓块具有安装槽和固定孔；第一紧固件，第一紧固件活动穿设在鼓肩内，并能够沿成型鼓的轴向运动，第一紧固件具有台阶面，中鼓块沿成型鼓的径向对接到鼓肩上时，安装槽与第一紧固件对齐，中鼓块挤压台阶面并使第一紧固件的一部分伸入至安装槽内；第二紧固件，第二紧固件的一部分穿设在鼓肩内，当第一紧固件的一部分伸入至安装槽后，固定孔与第二紧固件对齐，中鼓块沿成型鼓的轴向靠近鼓肩，第二紧固件外露于鼓肩的一部分伸入至固定孔内。本申请解决了现有技术中的鼓肩部分的齿形块更换费时费力的问题。

Description

成型鼓的中鼓组件、成型鼓和中鼓组件的中鼓块更换方法
本申请要求于2020年12月31日提交至中国国家知识产权局、申请号为202011638978.2，发明名称为“成型鼓的中鼓组件、成型鼓和中鼓组件的中鼓块更换方法”的专利申请的优先权。
技术领域
本申请涉及轮胎加工技术领域，具体而言，涉及一种成型鼓的中鼓组件、成型鼓和中鼓组件的中鼓块更换方法。
背景技术
成型鼓的鼓肩部分的齿形块长度需要根据轮胎规格的不同而更换不同尺寸的齿形块，常规的齿形块是通过螺钉连接在齿形块连接座上的，这样在更换齿形块的时候，需要拆卸连接螺钉，需要耗费大量时间，影响效率。
发明内容
本申请的主要目的在于提供一种成型鼓的中鼓组件、成型鼓和中鼓组件的中鼓块更换方法，以解决现有技术中的鼓肩部分的齿形块更换费时费力的问题。
为了实现上述目的，根据本申请的一个可选的实施方式，提供了一种成型鼓的中鼓组件，包括：鼓肩；中鼓块，中鼓块具有安装槽和固定孔；第一紧固件，第一紧固件活动穿设在鼓肩内，并能够沿成型鼓的轴向运动，第一紧固件具有台阶面，中鼓块沿成型鼓的径向对接到鼓肩上时，安装槽与第一紧固件对齐，中鼓块挤压台阶面并使第一紧固件的一部分伸入至安装槽内；第二紧固件，第二紧固件的一部分穿设在鼓肩内，当第一紧固件的一部分伸入至安装槽后，固定孔与第二紧固件对齐，中鼓块沿成型鼓的轴向靠近鼓肩，第二紧固件外露于鼓肩的一部分伸入至固定孔内。
在一个可选的实施例方式中，中鼓块呈弧形，且安装槽与弧形的内侧壁和弧形的端面均连通。
在一个可选的实施例方式中，第一紧固件包括顺次连接的大径段和小径段，大径段与小径段之间形成台阶面，且小径段伸入至鼓肩内，大径段能够伸入至安装槽内。
在一个可选的实施例方式中，安装槽包括顺次连通的扩径段和缩径段，且缩径段比扩径段靠近鼓肩的端面，大径段伸入至扩径段内，小径段伸入至缩径段内，台阶面抵接在缩径段朝向扩径段的端面上。
在一个可选的实施例方式中，安装槽的外边缘处设置有斜面，且沿中鼓块按成型鼓的径向对接到鼓肩上的方向，斜面向远离鼓肩的方向倾斜，在中鼓块按成型鼓的径向对接到鼓肩上时，斜面挤压台阶面，并使第一紧固件向伸出鼓肩的方向运动，且伸入至安装槽内。
在一个可选的实施例方式中，中鼓组件还包括弹性件，弹性件的两端分别与鼓肩和第一紧固件抵接，并为第一紧固件提供向伸入鼓肩的方向运动的弹力。
在一个可选的实施例方式中，中鼓块包括：齿形部，齿形部位于中鼓块的外侧面；连接部，连接部位于齿形部的端部内侧面，安装槽和固定孔均开设在连接部的端面上。
在一个可选的实施例方式中，固定孔和第二紧固件均为多个，且安装槽的两侧均设置有至少一个固定孔。
在一个可选的实施例方式中，安装槽为U形槽，第一紧固件为具有螺钉头的螺钉，第二紧固件为销钉。
根据本申请的一个可选的实施方式，提供了一种成型鼓，包括上述的中鼓组件。
根据本申请的一个可选的实施方式，提供了一种中鼓组件的中鼓块更换方法，中鼓组件包括鼓肩、中鼓块、以及穿设在鼓肩上的第一紧固件和第二紧固件，中鼓块具有安装槽和固定孔，中鼓块更换方法包括：中鼓块沿中鼓组件的径向靠近鼓肩的一侧，并与鼓肩的端面形成间隙，然后中鼓块继续向中鼓组件的中心运动，在运动过程中，中鼓块挤压第一紧固件的台阶面，使得第一紧固件的一端远离鼓肩并伸入至安装槽内，当中鼓块运动至固定孔与第二紧固件对齐后，中鼓块沿中鼓组件的轴向靠近鼓肩的端面，第一紧固件的一部分缩回鼓肩，第二紧固件伸入至固定孔。
在一个可选的实施例方式中，第一紧固件包括顺次连接的大径段和小径段，大径段与小径段之间形成台阶面，中鼓块挤压台阶面时，第一紧固件向伸出鼓肩的方向运动，且大径段伸入至安装槽内。
在一个可选的实施例方式中，安装槽的外边缘处设置有斜面，当中鼓块继续向中鼓组件的中心运动时，斜面挤压台阶面。
在一个可选的实施例方式中，中鼓组件还包括弹性件，中鼓块挤压台阶面时，第一紧固件压缩弹性件，弹性件长度变短，当中鼓块沿中鼓组件的轴向靠近鼓肩的端面时，第一紧固件释放弹性件，弹性件长度变长。
应用本申请的技术方案，通过在中鼓块上设置安装槽和固定孔，并且分别配合设置有第一紧固件和第二紧固件，第一紧固件和第二紧固件预先穿设在鼓肩上。当需要安装中鼓块时，先将中鼓块沿成型鼓的径向靠近鼓肩的一侧，下压中鼓块，在该过程中，中鼓块挤压第一紧 固件的台阶面，使得第一紧固件向伸出鼓肩的方向运动，第一紧固件的一端即可伸入到安装槽内，同时中鼓块的端面与鼓肩的端面之间形成有一段距离，该距离不小于第二紧固件外露于鼓肩的距离，从而使得中鼓块能够避让第二紧固件运动，当中鼓块径向运动到位时，固定孔与第二紧固件对齐，此时轴向推动中鼓块，使得中鼓块向靠近鼓肩的方向运动，第一紧固件向缩回鼓肩的方向运动，同时第二紧固件伸入至固定孔内，使得中鼓块径向的运动被第二紧固件锁定，而轴向的运动需要外力拉动中鼓块才能够进行，这样即可将中鼓块安装到鼓肩上。当需要拆卸中鼓块时，先外力轴向拉动中鼓块，使得第二紧固件从固定孔中脱离出来，然后径向上提中鼓块，使得第一紧固件从安装槽中脱离出来，即可将中鼓块拆下更换。上述设置方式使得中鼓块的拆装不需要拆卸螺钉，可以快速拆装，极大提高了更换效率，并且拆装过程只需要一压一推、一拉一提，拆装方便，省时省力。
附图说明
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1示出了本申请的中鼓组件在安装槽处的截面图；
图2示出了图1中的中鼓组件在固定孔处的截面图；
图3示出了图1中的中鼓组件的中鼓块的结构示意图。
其中，上述附图包括以下附图标记：
10、鼓肩；20、中鼓块；21、安装槽；22、固定孔；23、斜面；24、齿形部；25、连接部；30、第一紧固件；40、第二紧固件；50、弹性件。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
为了解决现有技术中的鼓肩部分的齿形块更换费时费力的问题，本申请提供了一种成型鼓的中鼓组件、成型鼓和中鼓组件的中鼓块更换方法。其中，成型鼓具有下述的中鼓组件。
如图1至图3所示的一种成型鼓的中鼓组件，包括鼓肩10、中鼓块20、第一紧固件30和第二紧固件40，中鼓块20具有安装槽21和固定孔22；第一紧固件30活动穿设在鼓肩10内，并能够沿成型鼓的轴向运动，第一紧固件30具有台阶面，中鼓块20沿成型鼓的径向对接到鼓肩10上时，安装槽21与第一紧固件30对齐，中鼓块20挤压台阶面并使第一紧固件30的一部分伸入至安装槽21内；第二紧固件40的一部分穿设在鼓肩10内，当第一紧固件30的一部分伸入至安装槽21后，固定孔22与第二紧固件40对齐，中鼓块20沿成型鼓的轴向靠近鼓肩10，第二紧固件40外露于鼓肩10的一部分伸入至固定孔22内。
本实施例通过在中鼓块20上设置安装槽21和固定孔22，并且分别配合设置有第一紧固件30和第二紧固件40，第一紧固件30和第二紧固件40预先穿设在鼓肩10上。当需要安装中鼓块20时，先将中鼓块20沿成型鼓的径向靠近鼓肩10的一侧，下压中鼓块20，在该过程中，中鼓块20挤压第一紧固件30的台阶面，使得第一紧固件30向伸出鼓肩10的方向运动，第一紧固件30的一端即可伸入到安装槽21内，同时中鼓块20的端面与鼓肩10的端面之间形成有一段距离，该距离不小于第二紧固件40外露于鼓肩10的距离，从而使得中鼓块20能够避让第二紧固件40运动，当中鼓块20径向运动到位时，固定孔22与第二紧固件40对齐，此时轴向推动中鼓块20，使得中鼓块20向靠近鼓肩10的方向运动，第一紧固件30向缩回鼓肩10的方向运动，同时第二紧固件40伸入至固定孔22内，使得中鼓块20径向的运动被第二紧固件40锁定，而轴向的运动需要外力拉动中鼓块20才能够进行，这样即可将中鼓块20安装到鼓肩10上。当需要拆卸中鼓块20时，先外力轴向拉动中鼓块20，使得第二紧固件40从固定孔22中脱离出来，然后径向上提中鼓块20，使得第一紧固件30从安装槽21中脱离出来，即可将中鼓块20拆下更换。上述设置方式使得中鼓块20的拆装不需要拆卸螺钉，可以快速拆装，极大提高了更换效率，并且拆装过程只需要一压一推、一拉一提，拆装方便，省时省力。
本实施例所说的轴向和径向均是指成型鼓的轴向和径向，更具体地说是成型鼓的主轴的轴向和径向。
在本实施例中，中鼓块20呈弧形，弧形与成型鼓的其他结构，例如垫板、滑块等配合，且安装槽21与弧形的内侧壁和弧形的端面均连通，第一紧固件30由弧形的内侧壁伸入至安装槽21内，而端面连通用于避让第一紧固件30，保证第一紧固件30伸入到安装槽21内。
优选地，本实施例的安装槽21设置成U形，并且U形的开口侧朝向弧形的中鼓块20的内侧。
本实施例的安装槽21和固定孔22的长度方向、第一紧固件30和第二紧固件40的轴向均沿成型鼓的轴向，第一紧固件30的滑动方向也是成型鼓的轴向。
在本实施例中，第一紧固件30包括顺次连接的大径段和小径段，大径段与小径段之间形成台阶面，且小径段伸入至鼓肩10内，大径段能够伸入至安装槽21内。本实施例的第一紧固件30采用螺钉，螺钉一端直径较大的螺钉头即为大径段，其他部分即为小径段，小径段穿设在鼓肩10内，大径段外露于鼓肩10，这样当中鼓块20径向下压时，由于大径段的尺寸较大，因而安装槽21的外边缘处即会挤压大径段和小径段之间形成的台阶面，从而将第一紧固件30拉出鼓肩10一段距离，实现避让第二紧固件40和后续紧固中鼓块20的效果。
与第一紧固件30的结构相适应，安装槽21包括顺次连通的扩径段和缩径段，且缩径段比扩径段靠近鼓肩10的端面，在下压中鼓块20时，大径段伸入至扩径段内，小径段伸入至缩径段内，这样，第一紧固件30的台阶面即可抵接在缩径段朝向扩径段的端面上，实现第一紧固件30与中鼓块20之间的止挡配合，并且当向远离鼓肩10的方向拉动中鼓块20时，缩径段的端面即可通过挤压台阶面带动第一紧固件30运动。
在本实施例中，安装槽21的外边缘处，也就是中鼓块20的端面内侧的安装槽21的拐角处设置有斜面23，且沿中鼓块20按成型鼓的径向对接到鼓肩10上的方向，斜面23向远离鼓肩10的方向倾斜，这样，当中鼓块20下压时，在中鼓块20按成型鼓的径向对接到鼓肩10上的同时，斜面23挤压台阶面的边缘，从而使得使第一紧固件30向伸出鼓肩10的方向运动，从而被拉出鼓肩10，第一紧固件30的大径段即可伸入至安装槽21内。通过斜面23的设置，使得第一紧固件30能够流畅挤压拉出第一紧固件30，保证下压动作的流畅性。
在本实施例中，中鼓组件还包括弹性件50，弹性件50为弹簧，其套设在第一紧固件30上，弹性件50的两端分别与鼓肩10和第一紧固件30抵接，并为第一紧固件30提供向伸入鼓肩10的方向运动的弹力，这样，一方面使得中鼓块20在拆装时止挡面始终与中鼓块20保持抵接，在中鼓块20轴向运动时始终与第一紧固件30保持同步运动，另一方面在安装完成后弹性件50通过第一紧固件30给中鼓块20靠近鼓肩10的拉力，使得中鼓块20始终与鼓肩10紧贴配合，在不受外力，或者受到不超过一定大小的外力时中鼓块20始终处于靠近鼓肩10的位置，第二紧固件40始终伸入在固定孔22内，以保证中鼓块20安装后的稳定性。需要说明的是，弹簧的弹力需要大于成型鼓正常使用时中鼓块20轴向晃动的力，这样才能够保证成型鼓正常工作时中鼓块20的稳定，使得中鼓块20只有在操作人员拆卸时才能够被拆下。当然，除了采用弹性件50外，也可以采用其他方式实现上述效果，例如将第一紧固件30更换为弹性部件，利用其自身的弹性实现上述效果；亦或者采用其他方式。
本实施例的中鼓块20为齿形块，其包括齿形部24和连接部25，齿形部24位于中鼓块20的外侧面，用于进行轮胎加工；连接部25位于齿形部24的端部内侧面，用于与鼓肩10等部件配合，安装槽21和固定孔22均开设在连接部25的端面上。
本实施例的安装槽21和第一紧固件30设置有一个，二者相互配合，而固定孔22和第二紧固件40均为多个，本实施例设置有两个，且安装槽21的两侧均设置有至少一个固定孔22，从而使得中鼓块20受力平衡，保证成型鼓正常工作时中鼓块20的稳定性。本实施例的固定孔22设置成盲孔，第二紧固件40为等径的销钉。当然，上述各部件的设置数量以及具体选用也可以根据需要进行改变。
本实施例还提供了一种中鼓组件的中鼓块更换方法，中鼓组件即为上述的中鼓组件，其包括鼓肩10、中鼓块20、以及穿设在鼓肩10上的第一紧固件30和第二紧固件40，中鼓块20具有安装槽21和固定孔22，中鼓块20更换方法包括：在安装中鼓块20时，中鼓块20沿中鼓组件的径向靠近鼓肩10的一侧，并与鼓肩10的端面形成间隙，然后中鼓块20继续向中鼓组件的中心运动，在运动过程中，中鼓块20挤压第一紧固件30的台阶面，使得第一紧固件30的一端远离鼓肩10并伸入至安装槽21内，当中鼓块20运动至固定孔22与第二紧固件40对齐后，中鼓块20沿中鼓组件的轴向靠近鼓肩10的端面，第一紧固件30的一部分缩回鼓肩10，第二紧固件40伸入至固定孔22。当需要拆下中鼓块20时，上述过程反向操作即可。
在本实施例中，由于第一紧固件30包括顺次连接的大径段和小径段，大径段与小径段之间形成台阶面，因而当中鼓块20挤压台阶面时，第一紧固件30在中鼓块20的挤压下向伸出鼓肩10的方向运动，且大径段伸入至安装槽21内。
在本实施例中，安装槽21的外边缘处设置有斜面23，当中鼓块20继续向中鼓组件的中心运动时，斜面23挤压台阶面。
在本实施例中，中鼓组件还包括弹性件50，中鼓块20挤压台阶面时，第一紧固件30压缩弹性件50，弹性件50长度变短，当中鼓块20沿中鼓组件的轴向靠近鼓肩10的端面时，第一紧固件30释放弹性件50，弹性件50长度变长。通过弹性件50实现限制中鼓块20轴向运动的效果。
需要说明的是，上述实施例中的多个指的是至少两个。
从以上的描述中，可以看出，本申请上述的实施例实现了如下技术效果：
1、解决了现有技术中的鼓肩部分的齿形块更换费时费力的问题；
2、中鼓块的拆装不需要拆卸螺钉，可以快速拆装，极大提高了更换效率；
3、拆装过程只需要一压一推、一拉一提，拆装方便，省时省力。
显然，上述所描述的实施例仅仅是本申请一部分的实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本申请保护的范围。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (14)

  1. 一种成型鼓的中鼓组件，其特征在于，包括：
    鼓肩(10)；
    中鼓块(20)，所述中鼓块(20)具有安装槽(21)和固定孔(22)；
    第一紧固件(30)，所述第一紧固件(30)活动穿设在所述鼓肩(10)内，并能够沿成型鼓的轴向运动，所述第一紧固件(30)具有台阶面，所述中鼓块(20)沿所述成型鼓的径向对接到所述鼓肩(10)上时，所述安装槽(21)与所述第一紧固件(30)对齐，所述中鼓块(20)挤压所述台阶面并使所述第一紧固件(30)的一部分伸入至所述安装槽(21)内；
    第二紧固件(40)，所述第二紧固件(40)的一部分穿设在所述鼓肩(10)内，当所述第一紧固件(30)的一部分伸入至所述安装槽(21)后，所述固定孔(22)与所述第二紧固件(40)对齐，所述中鼓块(20)沿所述成型鼓的轴向靠近所述鼓肩(10)，所述第二紧固件(40)外露于所述鼓肩(10)的一部分伸入至所述固定孔(22)内。
  2. 根据权利要求1所述的中鼓组件，其特征在于，所述中鼓块(20)呈弧形，且所述安装槽(21)与所述弧形的内侧壁和所述弧形的端面均连通。
  3. 根据权利要求1所述的中鼓组件，其特征在于，所述第一紧固件(30)包括顺次连接的大径段和小径段，所述大径段与所述小径段之间形成所述台阶面，且所述小径段伸入至所述鼓肩(10)内，所述大径段能够伸入至所述安装槽(21)内。
  4. 根据权利要求3所述的中鼓组件，其特征在于，所述安装槽(21)包括顺次连通的扩径段和缩径段，且所述缩径段比所述扩径段靠近所述鼓肩(10)的端面，所述大径段伸入至所述扩径段内，所述小径段伸入至所述缩径段内，所述台阶面抵接在所述缩径段朝向所述扩径段的端面上。
  5. 根据权利要求1所述的中鼓组件，其特征在于，所述安装槽(21)的外边缘处设置有斜面(23)，且沿所述中鼓块(20)按所述成型鼓的径向对接到所述鼓肩(10)上的方向，所述斜面(23)向远离所述鼓肩(10)的方向倾斜，在所述中鼓块(20)按所述成型鼓的径向对接到所述鼓肩(10)上时，所述斜面(23)挤压所述台阶面，并使所述第一紧固件(30)向伸出所述鼓肩(10)的方向运动，且伸入至所述安装槽(21)内。
  6. 根据权利要求1所述的中鼓组件，其特征在于，所述中鼓组件还包括弹性件(50)，所述弹性件(50)的两端分别与所述鼓肩(10)和所述第一紧固件(30)抵接，并为所述第一紧固件(30)提供向伸入所述鼓肩(10)的方向运动的弹力。
  7. 根据权利要求1所述的中鼓组件，其特征在于，所述中鼓块(20)包括：
    齿形部(24)，所述齿形部(24)位于所述中鼓块(20)的外侧面；
    连接部(25)，所述连接部(25)位于所述齿形部(24)的端部内侧面，所述安装槽 (21)和所述固定孔(22)均开设在所述连接部(25)的端面上。
  8. 根据权利要求1所述的中鼓组件，其特征在于，所述固定孔(22)和所述第二紧固件(40)均为多个，且所述安装槽(21)的两侧均设置有至少一个所述固定孔(22)。
  9. 根据权利要求1所述的中鼓组件，其特征在于，所述安装槽(21)为U形槽，所述第一紧固件(30)为具有螺钉头的螺钉，所述第二紧固件(40)为销钉。
  10. 一种成型鼓，其特征在于，包括权利要求1至9中任意一项所述的中鼓组件。
  11. 一种中鼓组件的中鼓块更换方法，其特征在于，中鼓组件包括鼓肩(10)、中鼓块(20)、以及穿设在所述鼓肩(10)上的第一紧固件(30)和第二紧固件(40)，所述中鼓块(20)具有安装槽(21)和固定孔(22)，所述中鼓块(20)更换方法包括：所述中鼓块(20)沿中鼓组件的径向靠近鼓肩(10)的一侧，并与所述鼓肩(10)的端面形成间隙，然后所述中鼓块(20)继续向所述中鼓组件的中心运动，在运动过程中，所述中鼓块(20)挤压所述第一紧固件(30)的台阶面，使得所述第一紧固件(30)的一端远离所述鼓肩(10)并伸入至所述安装槽(21)内，当所述中鼓块(20)运动至所述固定孔(22)与所述第二紧固件(40)对齐后，所述中鼓块(20)沿所述中鼓组件的轴向靠近所述鼓肩(10)的端面，所述第一紧固件(30)的一部分缩回所述鼓肩(10)，所述第二紧固件(40)伸入至所述固定孔(22)。
  12. 根据权利要求11所述的中鼓块(20)更换方法，其特征在于，所述第一紧固件(30)包括顺次连接的大径段和小径段，所述大径段与所述小径段之间形成所述台阶面，所述中鼓块(20)挤压所述台阶面时，所述第一紧固件(30)向伸出所述鼓肩(10)的方向运动，且所述大径段伸入至所述安装槽(21)内。
  13. 根据权利要求11所述的中鼓块(20)更换方法，其特征在于，所述安装槽(21)的外边缘处设置有斜面(23)，当所述中鼓块(20)继续向所述中鼓组件的中心运动时，所述斜面(23)挤压所述台阶面。
  14. 根据权利要求11所述的中鼓块(20)更换方法，其特征在于，所述中鼓组件还包括弹性件(50)，所述中鼓块(20)挤压所述台阶面时，所述第一紧固件(30)压缩所述弹性件(50)，所述弹性件(50)长度变短，当所述中鼓块(20)沿所述中鼓组件的轴向靠近所述鼓肩(10)的端面时，所述第一紧固件(30)释放所述弹性件(50)，所述弹性件(50)长度变长。
PCT/CN2021/142573 2020-12-31 2021-12-29 成型鼓的中鼓组件、成型鼓和中鼓组件的中鼓块更换方法 WO2022143792A1 (zh)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012031193A1 (en) * 2010-09-02 2012-03-08 Davian Enterprises, LLC Locking spacer and method
CN105324236A (zh) * 2013-06-28 2016-02-10 米其林集团总公司 具有改进的耐久性的轮胎模具
CN208343502U (zh) * 2018-06-15 2019-01-08 天津赛象机电工程有限公司 带束层贴合鼓鼓板快换装置
CN209426210U (zh) * 2018-12-20 2019-09-24 天津赛象科技股份有限公司 瓦块快换带束层传递环
CN211138203U (zh) * 2019-10-22 2020-07-31 青岛铭达高科轮胎科技有限公司 一种带束层鼓的快换瓦块装置
CN211390234U (zh) * 2019-07-31 2020-09-01 萨驰华辰机械(苏州)有限公司 叠加瓦块组件及带束鼓系统
CN214395529U (zh) * 2020-12-31 2021-10-15 软控股份有限公司 成型鼓的中鼓组件和成型鼓

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012031193A1 (en) * 2010-09-02 2012-03-08 Davian Enterprises, LLC Locking spacer and method
CN105324236A (zh) * 2013-06-28 2016-02-10 米其林集团总公司 具有改进的耐久性的轮胎模具
CN208343502U (zh) * 2018-06-15 2019-01-08 天津赛象机电工程有限公司 带束层贴合鼓鼓板快换装置
CN209426210U (zh) * 2018-12-20 2019-09-24 天津赛象科技股份有限公司 瓦块快换带束层传递环
CN211390234U (zh) * 2019-07-31 2020-09-01 萨驰华辰机械(苏州)有限公司 叠加瓦块组件及带束鼓系统
CN211138203U (zh) * 2019-10-22 2020-07-31 青岛铭达高科轮胎科技有限公司 一种带束层鼓的快换瓦块装置
CN214395529U (zh) * 2020-12-31 2021-10-15 软控股份有限公司 成型鼓的中鼓组件和成型鼓

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