WO2022099630A1 - 一种塑料管材扩口模具 - Google Patents

一种塑料管材扩口模具 Download PDF

Info

Publication number
WO2022099630A1
WO2022099630A1 PCT/CN2020/128759 CN2020128759W WO2022099630A1 WO 2022099630 A1 WO2022099630 A1 WO 2022099630A1 CN 2020128759 W CN2020128759 W CN 2020128759W WO 2022099630 A1 WO2022099630 A1 WO 2022099630A1
Authority
WO
WIPO (PCT)
Prior art keywords
slider
sliders
small
vertebral
plastic pipe
Prior art date
Application number
PCT/CN2020/128759
Other languages
English (en)
French (fr)
Inventor
王其雨
Original Assignee
盐城市瑞通塑胶有限公司
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 盐城市瑞通塑胶有限公司 filed Critical 盐城市瑞通塑胶有限公司
Priority to PCT/CN2020/128759 priority Critical patent/WO2022099630A1/zh
Publication of WO2022099630A1 publication Critical patent/WO2022099630A1/zh

Links

Images

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
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/02—Belling or enlarging, e.g. combined with forming a groove
    • B29C57/04—Belling or enlarging, e.g. combined with forming a groove using mechanical means

Definitions

  • the utility model relates to the technical field of plastic pipe material processing equipment, in particular to a plastic pipe material flaring mold with a sealing ring groove.
  • PVC pipes are the main ones, and the flaring of the PVC pipe ends has become one of the key technologies in pipe production.
  • the PVC is heated to a high elastic state of about 125°, and the flaring is rapidly cooled to shape, so that the PVC pipe remains in the shape after the flaring.
  • the mold can be expanded into the shape of the sealing ring accordingly. After the plastic flaring part is cooled and shaped, the expanding ring in the shape of the sealing ring must be shrunk to a smaller size than the flat part of the flaring mold before it can exit the mold.
  • the commonly used flaring die at the pipe end is prone to breakage at the hook claw of the slider, resulting in the bending of the main shaft or the slipping of the nut at the end of the main shaft, and the general short life of the flaring die.
  • the purpose of the utility model is to provide a plastic pipe flare mold, which can improve the overall rigidity and bending resistance of the main shaft, improve the service life of the mold, and can effectively solve the problems raised in the above-mentioned background technology.
  • a plastic pipe flaring mold including a mold body, a main shaft, a guide rail, a slider base, a vertebral sleeve, a large slider, a small slider, a spring, and a push rod.
  • the mold body is a cylindrical cavity
  • a main shaft is coaxially arranged in the cavity
  • two guide rails are symmetrically arranged on the main shaft
  • a cone-shaped slider base and a cone-shaped sleeve are also sleeved on the main shaft.
  • the vertebral sleeve is fixedly connected to the vertebral top of the slider base in the same direction, and four dovetail-shaped grooves are symmetrically arranged on the tapered surface of the slider base.
  • the slider, the four conical surfaces of the slider base are provided with small sliders with arc-shaped surfaces, the large sliders and the small sliders are arranged at intervals, and the large slider is provided on the opposite end of the arc-shaped surface.
  • There is a pin hole the large sliding block is movably connected inside the mold body through a pin shaft, and a spring is also arranged between the large sliding block and the mold inner cavity; the vertebral bottom surface of the slider base is fixedly connected with a A push rod, the other end of the push rod is fixed on the mold body.
  • dovetail guide rails are provided on the four conical surfaces of the slider base.
  • the lower end surface of the small slider is provided with a dovetail guide groove.
  • the arc surfaces of the large sliding block and the small sliding block are both disposed outward.
  • the plastic pipe flaring die of the present utility model utilizes a spring to allow the large sliding block to reciprocate around the pin shaft, avoiding the phenomenon of easy breakage of the hooking claw caused by the original use of the hooking claw to push the reciprocating motion of the large sliding block;
  • the plastic pipe flaring die of the present utility model is provided with a push rod on the slider base, and the slider base can be moved back and forth through the push rod, so that the rigidity of the main shaft is greatly enhanced, the bending of the main shaft is avoided, and the mold is increased at the same time. useful life;
  • the utility model has reasonable design and stable performance, can improve the overall rigidity and bending resistance of the main shaft, and has a long service life.
  • Fig. 1 is the overall structure schematic diagram of the present utility model
  • Fig. 2 is the open state diagram of the utility model large and small sliders
  • FIG. 3 is a state diagram of the retracting state of the large sliding block of the present utility model
  • FIG. 4 is a state diagram of the retracted small slider of the utility model
  • the terms “installation” and “connection” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or It can be connected in one piece; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, which can be said to be the internal communication of the two elements.
  • installation and “connection” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or It can be connected in one piece; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, which can be said to be the internal communication of the two elements.
  • the specific meanings of the above terms in the present invention can be understood in specific situations.
  • the utility model provides a plastic pipe flaring mold
  • the flaring mold mainly includes a mold body 1, a main shaft 2, a guide rail 3, a slider base 4, a conical sleeve 5, a large slider 6.
  • Small slider 7, spring 8, push rod 9 the mold body 1 is a cylindrical cavity
  • a main shaft 2 is coaxially arranged in the cavity
  • two guide rails 3 are symmetrically arranged on the main shaft 2
  • a cone is also sleeved on the main shaft 2
  • the shape of the slider base 4 and the vertebral sleeve 5, the vertebral sleeve 5 is fixedly connected to the vertebral top of the slider base 4 in the same direction
  • the cone surface of the slider base 4 is symmetrically provided with 4 dovetail grooves.
  • a large fan-shaped slider 6 with arc-shaped protrusions is provided, and a small slider 7 with an arc-shaped surface is arranged on the four conical surfaces of the slider base 4.
  • the large slider 6 and the small slider 7 are arranged at intervals, and the large slider 6 is provided with a pin hole at the opposite end of the arc-shaped surface, the large slider 6 is movably connected to the inside of the mold body 1 through a pin shaft, and a spring 8 is also provided between the large slider 6 and the cavity of the mold; the vertebral bottom surface of the slider base 4
  • a push rod 9 is fixedly connected, and the other end of the push rod 9 is fixed on the mold body 1 .
  • the four conical surfaces of the slider base 4 are provided with dovetail guide rails, and the lower end face of the small slider 7 is provided with a dovetail guide groove, and the small slider 7 passes through the dovetail guide The tapered surface of the slider base 4 moves.
  • the working principle of this embodiment is: when the main shaft 2 is twitched to the left, the small sliding block 7 slides down radially along the sliding seat base 4, and when the four small sliding blocks 7 are retracted to the bottom, the arc-shaped protrusion of the large sliding block 6 is in Under the action of the spring 7, it is recovered around the pin shaft. When it is retracted to the bottom, the arc surfaces of the large slider 6 and the small slider 7 of the mold are both reduced to be smaller than the diameter of the flat mold body 1 .
  • the vertebral sleeve 5 When the main shaft 2 is pushed to the right, the vertebral sleeve 5 first stretches the 4 large sliding blocks 6, and the 4 small sliding blocks 7 slowly open along the conical surface under the action of the sliding seat base 4, until they are connected with the large sliding blocks 6.
  • the curved face of 6 forms a full circle.

Landscapes

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

Abstract

本实用新型公开了一种塑料管材扩口模具，包括模体、主轴、导轨、滑块底座、椎型套、大滑块、小滑块、弹簧、推杆，模体内同轴设有主轴，主轴上套设有滑块底座和椎型套，椎型套同方向连接在滑块底座的椎顶部，滑块底座的锥面上对称设有4个燕尾型槽，燕尾型槽内设有大滑块，滑块底座的4个锥面上设有小滑块，大滑块与小滑块呈间隔设置，大滑块上的一端设有销孔，大滑块通过销轴活动连接在模体内部，大滑块与所述模体内腔间还设有弹簧；滑块底座的椎底面连接推杆。本实用新型设计合理，性能稳定，能提高主轴整体刚度及抗弯能力，使用寿命长。

Description

一种塑料管材扩口模具 技术领域
本实用新型涉及塑料管材加工设备技术领域，具体为一种带密封圈凹槽的塑料管材扩口模具。
背景技术
在我国的给排水管道中，以PVC管道为主，PVC管端的扩口成为管材生产的关键技术之一。PVC管端的扩口工艺时利用PVC在加热到125°左右的高弹状态扩口并快速冷却定型，让PVC管留下扩口后的形状。为了得到放置密封圈的凹槽，模具相应能涨成密封圈的形状，塑料扩口部分冷却定型后密封圈形状的涨环必须缩到作用尺寸小于扩口模具平直部分才能退出模具。目前，常用的管端的扩口模具在滑块的勾爪处容易出现断裂的现象，导致主轴出现弯曲或主轴末端螺母拉滑的情况，使扩口模具普遍出现寿命短的情况。
发明内容
本实用新型的目的在于提供一种塑料管材扩口模具，该扩口模具能提高主轴整体刚度及抗弯能力，提高模具的使用寿命，能有效解决上述背景技术中提出的问题。
本实用新型解决其技术问题所采用的技术方案是：一种塑料管材扩口模具，包括模体、主轴、导轨、滑块底座、椎型套、大滑块、小滑块、弹簧、推杆，所述模体为柱状腔体，腔体内同轴设有主轴，所述主轴上对称设有两条导轨，所述主轴上还套设有椎形状的滑块底座和椎型套，所述椎型套同方向固定连接在所述滑块底座的椎顶部，所述滑块底座的锥面上对称设有4个燕尾型槽，所述燕尾型槽内设有带弧形突起的扇形大滑块，所述滑块底座的4个锥面上设有带弧形面小滑块，所述大滑块与小滑块呈间隔设置，所述大滑块上与弧形面相 对一端设有销孔，所述大滑块通过销轴活动连接在所述模体内部，所述大滑块与所述模体内腔间还设有弹簧；所述滑块底座的椎底面固定连接有一根推杆，所述推杆的另一端固定在模体上。
优选的，所述滑块底座的的4个锥形面上都设有燕尾型导轨。
优选的，所述小滑块的下端面设有燕尾型导轨槽。
优选的，所述大滑块与小滑块的弧形面均朝外设置。
与现有技术相比，本实用新型的有益效果是：
1.本实用新型的塑料管材扩口模具利用弹簧让大滑块绕销轴做往复运动，避免了原有采用勾爪推动大滑块往复运动而造成的勾爪易断裂现象；
2.本实用新型的塑料管材扩口模在滑块底座上设有推杆，通过推杆实现滑块底座前后移动，这样主轴的刚度大大增强，避免了主轴出现弯曲的情况，同时增加了模具的实用寿命；
3.本实用新型设计合理，性能稳定，能提高主轴整体刚度及抗弯能力，使用寿命长。
附图说明
图1为本实用新型整体结构示意图；
图2为本实用新型大小滑块张开状态图；
图3为本实用新型大滑块收回状态图；
图4为本实用新型小滑块收回状态图；
在图中，1、模体；2、主轴；3、导轨；4、滑块底座；5、椎型套；6、大滑块；7、小滑块；8、弹簧；9、推杆。
具体实施方式
附图仅用于示例性说明，不能理解为对本专利的限制；为了更好说明本实 施例，附图某些部件会有省略、放大或缩小，并不代表实际产品的尺寸；对于本领域技术人员来说，附图中某些公知结构及其说明可能省略是可以理解的。在本实用新型的描述中，需要理解的是，在本实用新型的描述中，除非另有说明，“多个”的含义是两个或两个以上。在本实用新型的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以是通过中间媒介间接连接，可以说两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本实用新型的具体含义。
下面结合附图和实施例对本实用新型的技术方案做进一步的说明。
如附图1所示，本实用新型提供的一种塑料管材扩口模具，所述扩口模具主要包括模体1、主轴2、导轨3、滑块底座4、椎型套5、大滑块6、小滑块7、弹簧8、推杆9，模体1为柱状腔体，腔体内同轴设有主轴2，主轴2上对称设有两条导轨3，主轴2上还套设有椎形状的滑块底座4和椎型套5，椎型套5同方向固定连接在滑块底座4的椎顶部，滑块底座4的锥面上对称设有4个燕尾型槽，燕尾型槽内设有带弧形突起的扇形大滑块6，滑块底座4的4个锥面上设有带弧形面小滑块7，大滑块6与小滑块7呈间隔设置，大滑块6上与弧形面相对一端设有销孔，大滑块6通过销轴活动连接在模体1内部，大滑块6与模体内腔间还设有弹簧8；滑块底座4的椎底面固定连接有一根推杆9，推杆9的另一端固定在模体1上。
如附图2-4所示，滑块底座4的4个锥形面上都设有燕尾型导轨，小滑块7的下端面设有燕尾型导轨槽，小滑块7通过燕尾型导轨在滑块底座4的锥形面上移动。
本实施例的工作原理是：通过主轴2向左抽动时，小滑块7沿着滑座底座4径向下滑，当4个小滑块7缩到底后，大滑块6的弧形突起在弹簧7的作用下绕销轴回收，当缩到底后，模具的大滑块6和小滑块7的弧形面均缩小到小于平直模体1的直径。当主轴2向右推进时，椎型套5先撑开4个大滑块6，4个小滑块7在滑座底座4的作用下沿着锥面慢慢张开，直到与大滑块6的弧形面形成一个整圆形。
上述实施例只为说明本实用新型的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本实用新型的内容并据以实施，并不能以此限制本实用新型的保护范围，凡根据本实用新型精神实质所作的等效变化或修饰，都应涵盖在本实用新型的保护范围之内。

Claims (4)

  1. 一种塑料管材扩口模具,其特征在于：包括模体(1)、主轴(2)、导轨(3)、滑块底座(4)、椎型套(5)、大滑块(6)、小滑块(7)、弹簧(8)、推杆(9)，所述模体(1)为柱状腔体，腔体内同轴设有主轴(2)，所述主轴(2)上对称设有两条导轨(3)，所述主轴(2)上还套设有椎形状的滑块底座(4)和椎型套(5)，所述椎型套(5)同方向固定连接在所述滑块底座(4)的椎顶部，所述滑块底座(4)的锥面上对称设有4个燕尾型槽，所述燕尾型槽内设有带弧形突起的扇形大滑块(6)，所述滑块底座(4)的4个锥面上设有带弧形面小滑块(7)，所述大滑块(6)与小滑块(7)呈间隔设置，所述大滑块(6)上与弧形面相对一端设有销孔，所述大滑块(6)通过销轴活动连接在所述模体(1)内部，所述大滑块(6)与所述模体内腔间还设有弹簧(8)；所述滑块底座(4)的椎底面固定连接有一根推杆(9)，所述推杆(9)的另一端固定在模体(1)上。
  2. 根据权利要求1所述的一种塑料管材扩口模具，其特征在于：所述滑块底座(4)的4个锥形面上都设有燕尾型导轨。
  3. 根据权利要求1所述的一种塑料管材扩口模具，其特征在于：所述小滑块(7)的下端面设有燕尾型导轨槽。
  4. 根据权利要求1所述的一种塑料管材扩口模具，其特征在于：所述大滑块(6)与小滑块(7)的弧形面均朝外设置。
PCT/CN2020/128759 2020-11-13 2020-11-13 一种塑料管材扩口模具 WO2022099630A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/128759 WO2022099630A1 (zh) 2020-11-13 2020-11-13 一种塑料管材扩口模具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/128759 WO2022099630A1 (zh) 2020-11-13 2020-11-13 一种塑料管材扩口模具

Publications (1)

Publication Number Publication Date
WO2022099630A1 true WO2022099630A1 (zh) 2022-05-19

Family

ID=81602048

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/128759 WO2022099630A1 (zh) 2020-11-13 2020-11-13 一种塑料管材扩口模具

Country Status (1)

Country Link
WO (1) WO2022099630A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB892543A (en) * 1960-09-15 1962-03-28 Mine Safety Appliances Co Pipe flaring tool
CN2144052Y (zh) * 1992-10-09 1993-10-20 刘远桦 塑料管材扩口模具
CN201272027Y (zh) * 2008-08-29 2009-07-15 张欢庆 扩口管件的扩口型芯脱模机构
CN205853354U (zh) * 2016-08-04 2017-01-04 中山环宇实业有限公司 可使管材端部形成扩口结构的扩口成型装置
CN109278278A (zh) * 2018-09-28 2019-01-29 杭州亿通塑胶实业有限公司 聚乙烯实壁管及其扩张成型装置
CN210026134U (zh) * 2019-04-04 2020-02-07 浙江创元模具科技有限公司 小扩口管件注塑模具的抽芯机构

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB892543A (en) * 1960-09-15 1962-03-28 Mine Safety Appliances Co Pipe flaring tool
CN2144052Y (zh) * 1992-10-09 1993-10-20 刘远桦 塑料管材扩口模具
CN201272027Y (zh) * 2008-08-29 2009-07-15 张欢庆 扩口管件的扩口型芯脱模机构
CN205853354U (zh) * 2016-08-04 2017-01-04 中山环宇实业有限公司 可使管材端部形成扩口结构的扩口成型装置
CN109278278A (zh) * 2018-09-28 2019-01-29 杭州亿通塑胶实业有限公司 聚乙烯实壁管及其扩张成型装置
CN210026134U (zh) * 2019-04-04 2020-02-07 浙江创元模具科技有限公司 小扩口管件注塑模具的抽芯机构

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SUN BING , SUN YEBIN , ZHANG JIAHUAN: "Improved Design of Flaring Mould for Small-sized PVC Rigid Pipe", CHINA SOUTHERN AGRICULTURAL MACHINERY, 15 March 2018 (2018-03-15), pages 20 - 21, XP055930973, ISSN: 1672-3872 *

Similar Documents

Publication Publication Date Title
CN103962404B (zh) 用于在单向液压机上实现往复挤压工艺的装置
CN101291085A (zh) 空心铜导线管
WO2022099630A1 (zh) 一种塑料管材扩口模具
CN207756680U (zh) 一种大型环件胀形机构
CN206416377U (zh) 一种圆锥面导向子午线轮胎活络模具
CN205950349U (zh) 一种不锈钢方管生产用切割固定座
CN204706400U (zh) 一种耐磨型电线吹水器
CN204604687U (zh) 一种汽车橡胶特殊结构件产品取模治具
CN105964816A (zh) 一种胀管器
CN204639012U (zh) 环轧机用的芯辊装置
CN207190090U (zh) 卫浴水管接头成型模具
CN212190989U (zh) 可伸缩组合式拉胀杆
CN206435701U (zh) 汽车零部件加工生产用的锻造装置
CN205161637U (zh) 一种伸缩式鱼竿
CN206382443U (zh) 一种尾管扩口成型模具
CN213378554U (zh) 一种便于变换槽型的铝合金型材挤压模具
CN204771422U (zh) 连铸机弯曲段辊子轴承拆卸工具及拆卸装置
CN209987250U (zh) 新型模具顶出式滑块装置
CN205650718U (zh) 一种胀管器
CN204638893U (zh) 保持架成形工艺中的锥面拉伸模具
CN214322500U (zh) 一种管口制作多工序组合机
CN206636199U (zh) 一种高质量的定型模板
CN219597691U (zh) 一种管材夹持装置
CN205165705U (zh) 一种加厚头部圆柱头螺钉的加工模具
CN201136074Y (zh) 内螺纹铜管成型用的芯杆装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20961186

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20961186

Country of ref document: EP

Kind code of ref document: A1