CN103568286A - 应用于方坯管的真空定型模具定径套 - Google Patents

应用于方坯管的真空定型模具定径套 Download PDF

Info

Publication number
CN103568286A
CN103568286A CN201210284854.8A CN201210284854A CN103568286A CN 103568286 A CN103568286 A CN 103568286A CN 201210284854 A CN201210284854 A CN 201210284854A CN 103568286 A CN103568286 A CN 103568286A
Authority
CN
China
Prior art keywords
sizing
cambered surface
sizing die
sleeve
calibration sleeve
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201210284854.8A
Other languages
English (en)
Inventor
徐新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Konrun Machinery Technology Co Ltd
Original Assignee
Ningbo Konrun Machinery Technology Co Ltd
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 Ningbo Konrun Machinery Technology Co Ltd filed Critical Ningbo Konrun Machinery Technology Co Ltd
Priority to CN201210284854.8A priority Critical patent/CN103568286A/zh
Publication of CN103568286A publication Critical patent/CN103568286A/zh
Pending legal-status Critical Current

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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/903—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)

Abstract

本发明公开了一种应用于方坯管的真空定型模具定径套。其特征在于，所述定径套为四边成矩形的定型型腔，所述四边的面向定型型腔中心的内边凸出形成弧面凸起，相邻两条凸起的内边在四个转角处向定型型腔中心的反方向凹陷形成弧面凹槽，所述内边的弧面凸起部到定型型腔中心的距离大于或等于弧面凸起部到外边的距离。本发明在同样环刚度的条件下可以降低坯管壁厚，节省原辅材料，同时，缠绕管表面平整，施工质量可靠。

Description

应用于方坯管的真空定型模具定径套
技术领域：
本发明涉及中空壁缠绕管的方坯管，特别涉及一种应用于中空壁缠绕管的方坯管的真空定型模具定径套。
背景技术：
在市政工程中常用的中空壁缠绕管，主要用作市政雨水、污水的排放管道。它是由方坯管的真空定型模具挤出的方坯管在缠绕成型台上经轴向缠绕并融接焊而成的缠绕管制成品。
目前，所采用的方坯管的真空定型模具的定径套，其定型型腔呈方形。在坯管挤出定型的过程中，坯管在出此定径套时，由于真空的作用，加上坯管本身在定径套经过冷却后已经有一定的硬度，但是还有较大的塑性，坯管四边由中间向外拉伸成类椭圆形。
由于在坯管上成型台以后，坯管塌陷后的高度已达不到设计要求，焊缝呈圆弧工字形，因此削弱了焊缝结构的性能，使缠绕管环刚度指标达不到保障。为满足环刚度要求，必须增大坯管的壁厚，浪费原辅材料，同时，缠绕管表面不平整，影响施工质量。
发明内容：
鉴于上述技术问题，本发明提供了一种应用于方坯管的真空定型模具定径套。该产品能够在满足缠绕管环刚度要求的前提下能节省原辅材料、降低生产成本、提高缠绕管表面平整度。
本发明的具体技术方案如下：
应用于方坯管的真空定型模具定径套，其特征在于，所述定径套为四边成矩形的定型型腔，所述四边的面向定型型腔中心的内边凸出形成弧面凸起，相邻两条凸起的内边在四个转角处向定型型腔中心的反方向凹陷形成弧面凹槽，所述内边的弧面凸起部到定型型腔中心的距离大于或等于弧面凸起部到外边的距离。
上述方案中，所述弧面凸起与弧面凹槽的连接处平滑过渡。
本发明在同样环刚度的条件下可以降低坯管壁厚，节省原辅材料，同时，缠绕管表面平整，施工质量可靠。
附图说明：
以下结合附图和具体实施方式来进一步说明本发明。
图1为本发明所述的应用于方坯管的真空定型模具定径套横截面结构示意图。
具体实施方式：
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体图示，进一步阐述本发明。
如图1所示，本发明所述的应用于方坯管的真空定型模具定径套，其定径套为四边成矩形的定型型腔，四边的面向定型型腔中心100的内边凸出形成弧面凸起200，相邻两条凸起的内边在四个转角处向定型型腔中心100的反方向凹陷形成弧面凹槽300，内边的弧面凸起200部到定型型腔中心100的距离大于或等于弧面凸起200部到外边400的距离。另外，弧面凸起200与弧面凹槽300的连接处平滑过渡。
这样一来，坯管在出此定径套后自然形成规则的正方形。由于在坯管挤出定型的过程中，坯管在出此定径套时，由于真空的作用，加上坯管本身在定径套经过冷却后已经有一定的硬度，但是还有较大的塑性，坯管四边中间向外拉伸自然形成规则的正方形。在坯管上成型台以后，坯管的高度能达到设计要求，焊缝呈标准的工字形，缠绕管的环刚度指标达到保障。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (2)

1.应用于方坯管的真空定型模具定径套，其特征在于，所述定径套为四边成矩形的定型型腔，所述四边的面向定型型腔中心的内边凸出形成弧面凸起，相邻两条凸起的内边在四个转角处向定型型腔中心的反方向凹陷形成弧面凹槽，所述内边的弧面凸起部到定型型腔中心的距离大于或等于弧面凸起部到外边的距离。
2.根据权利要求1的应用于方坯管的真空定型模具定径套，其特征在于，所述弧面凸起与弧面凹槽的连接处平滑过渡。
CN201210284854.8A 2012-08-11 2012-08-11 应用于方坯管的真空定型模具定径套 Pending CN103568286A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210284854.8A CN103568286A (zh) 2012-08-11 2012-08-11 应用于方坯管的真空定型模具定径套

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210284854.8A CN103568286A (zh) 2012-08-11 2012-08-11 应用于方坯管的真空定型模具定径套

Publications (1)

Publication Number Publication Date
CN103568286A true CN103568286A (zh) 2014-02-12

Family

ID=50041404

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210284854.8A Pending CN103568286A (zh) 2012-08-11 2012-08-11 应用于方坯管的真空定型模具定径套

Country Status (1)

Country Link
CN (1) CN103568286A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105719778A (zh) * 2014-12-18 2016-06-29 丰田自动车株式会社 绝缘包覆导线的制造方法和制造设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1469646A (en) * 1973-03-19 1977-04-06 Graenges Essem Plast As Method for the production of pipe lengths of varying cross- section of thermoplastics material and apparatus for carrying out the method
CN2721375Y (zh) * 2004-07-30 2005-08-31 江苏法尔胜新型管业有限公司 中空壁缠绕管的方坯管真空定型模具定径套
CN202753412U (zh) * 2012-08-11 2013-02-27 宁波康润机械科技有限公司 应用于方坯管的真空定型模具定径套

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1469646A (en) * 1973-03-19 1977-04-06 Graenges Essem Plast As Method for the production of pipe lengths of varying cross- section of thermoplastics material and apparatus for carrying out the method
CN2721375Y (zh) * 2004-07-30 2005-08-31 江苏法尔胜新型管业有限公司 中空壁缠绕管的方坯管真空定型模具定径套
CN202753412U (zh) * 2012-08-11 2013-02-27 宁波康润机械科技有限公司 应用于方坯管的真空定型模具定径套

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105719778A (zh) * 2014-12-18 2016-06-29 丰田自动车株式会社 绝缘包覆导线的制造方法和制造设备

Similar Documents

Publication Publication Date Title
KR101667741B1 (ko) 강성과 결합력 향상을 위한 요철 연결형 삼중벽 하수관 제조방법
CN103883805A (zh) 一种hdpe螺旋波纹管及制造方法
CN103568286A (zh) 应用于方坯管的真空定型模具定径套
CN205956579U (zh) 内肋增强聚乙烯pe螺旋波纹管带材
CN202719284U (zh) 高刚度聚乙烯缠绕结构壁管材
CN202753412U (zh) 应用于方坯管的真空定型模具定径套
CN102689442B (zh) 中空滚压成型内肋增强缠绕波纹管及制造工艺
CN203770861U (zh) 一种hdpe螺旋波纹管
CN103174887A (zh) 新型塑钢缠绕管
CN204429876U (zh) 圆管的挤压拉拔模具
CN203743653U (zh) 钢骨架聚乙烯缠绕结构壁管材
HRP20150227T1 (hr) Šuplji profil namijenjen za proizvodnju cijevi
CN102699205A (zh) 焊接钢管定外径组合模具
CN104550298A (zh) 用于挤压拉拔圆管的模具
CN2721375Y (zh) 中空壁缠绕管的方坯管真空定型模具定径套
CN104006051A (zh) 一种轮胎螺丝及其成型工艺
CN204089356U (zh) 一种电机定子铁芯结构
CN204254063U (zh) 一种结构增强型pe螺旋双壁波纹管
CN206112488U (zh) 用于制造缠绕管的方管
CN205026360U (zh) 改良型用于制造内肋增强外波纹型塑料缠绕结构壁管材的带材
CN207529793U (zh) 垫块带斜角的端圈
CN105034416A (zh) 一种pp高模量缠绕结构壁波纹管及其制备方法
KR101748635B1 (ko) 강성과 결합력 향상을 위한 요철 연결형 이중벽 하수관 제조방법
KR101748634B1 (ko) 강성과 결합력 향상을 위한 요철 연결형 삼중벽 하수관 성형장치
CN202715778U (zh) 一种用于汽车排气管法兰接头的抽芯

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20140212