CN2399192Y - 叠加式模头 - Google Patents

叠加式模头 Download PDF

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Publication number
CN2399192Y
CN2399192Y CN99242221U CN99242221U CN2399192Y CN 2399192 Y CN2399192 Y CN 2399192Y CN 99242221 U CN99242221 U CN 99242221U CN 99242221 U CN99242221 U CN 99242221U CN 2399192 Y CN2399192 Y CN 2399192Y
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CN
China
Prior art keywords
die
screw bolt
bolt
die head
die orifice
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.)
Expired - Lifetime
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CN99242221U
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English (en)
Inventor
陈大魁
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.)
Zhejiang Zhongcheng Packing Material Co., Ltd.
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陈大魁
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Priority to CN99242221U priority Critical patent/CN2399192Y/zh
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Publication of CN2399192Y publication Critical patent/CN2399192Y/zh
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    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
    • B29C48/3363—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die using a layered die, e.g. stacked discs
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

本实用新型公开了一种共挤薄膜用、带局部微调结构的模头。模头由流道(1)、模体(2)、模口(3)组成,螺栓(5)直接作用于模口(3)来调节母膜同心度;模口(3)上螺栓(6)、螺栓(7)作用于金属块(4),两者相互配合锁定金属块(4)位置从而调节母膜局部壁厚。这样,既提高了母膜整体强度、透明度,又保证了生产连续性,从而大大降低了生产成本,提高生产效率。

Description

叠加式模头
本实用新型涉及一种机械模具，它是一种应用金属材料弹性变形原理而设计的局部微调的模头。
叠加式模头自90年代从国外引进以来，在三层共挤薄膜的制造上发挥了很大的作用，但其模头不能对母膜壁厚局部调节，而母膜的出口是在一定温度的条件下，故模口会产生失园造成母膜厚薄不匀的现象，从而既影响了母膜的透明度，又导致母膜在下一吹塑工序中破膜现象的发生，严重制约生产的连续性。
本实用新型的任务是提供一种叠加式模头，它能对生产过程中模口失园造成母膜厚薄不匀现象及时调整，从而保证生产的连续性。
为解决上述任务，本实用新型的总体技术方案如下：叠加式模头由流道、模体、模口组成，模体内设计若干流道，模口与模体以螺丝连接，一螺栓直接作用于模口；模口上另两螺栓作用于金属块，两者相互配合锁定金属块位置。
由于模口上一螺栓直接作用于模口，故当该螺栓松紧时，可调节母膜的同心度，从基本上保证母膜的平均厚度要求。同时模口上另两螺栓作用于若干金属块，两者相互配合锁定金属块位置，从而得以调整母膜的局部壁厚，提高了母膜的整体强度，保证了生产的连续性，大大降低了企业生产成本，提高了生产效率。
下面结合附图和实施例对本实用新型作进一步说明：
图1为本实用新型叠加式模头的纵向剖视图。
图2为本实用新型叠加式模头沿A-A线的剖视图。
由图可知，叠加式模头由流道1、模体2、模口3组成。模体2内设计若干条流道1，模口3与模体2以螺丝连接，螺栓5直接作用于模口3，调节母膜出口的同心度(即当螺栓5旋紧时流道变窄，旋松时流道变宽)。模口3上的螺栓6、螺栓7作用于金属块4，当螺栓6旋紧时，螺栓7放松，使流道1变窄至所需位置，再旋紧螺栓7，反之同理，即螺栓6、螺栓7两者相配合锁定金属块(4)位置，从而达到调节母膜局部壁厚不匀的目的。
本实用新型不局限于三层共挤薄膜的制造，同样也不局限于局部壁厚控制的24块金属块的分割，只要在模口设计了金属块分割的局部调节系统，均属本实用新型保护范围。

Claims (1)

1、一种叠加式模头，由流道(1)、模体(2)、模口(3)组成，流道(1)设计于模体(2)内，模口(3)与模体(2)以螺丝连接，其特征在于：螺栓(5)直接作用于模口(3)；模口(3)上的螺栓(6)、螺栓(7)作用于金属块(4)，两者互相配合锁定金属块(4)位置。
CN99242221U 1999-09-03 1999-09-03 叠加式模头 Expired - Lifetime CN2399192Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN99242221U CN2399192Y (zh) 1999-09-03 1999-09-03 叠加式模头

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN99242221U CN2399192Y (zh) 1999-09-03 1999-09-03 叠加式模头

Publications (1)

Publication Number Publication Date
CN2399192Y true CN2399192Y (zh) 2000-10-04

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ID=34028924

Family Applications (1)

Application Number Title Priority Date Filing Date
CN99242221U Expired - Lifetime CN2399192Y (zh) 1999-09-03 1999-09-03 叠加式模头

Country Status (1)

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CN (1) CN2399192Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1834045B (zh) * 2005-03-19 2010-04-28 鸿富锦精密工业（深圳）有限公司 可调整同心度的模具

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1834045B (zh) * 2005-03-19 2010-04-28 鸿富锦精密工业（深圳）有限公司 可调整同心度的模具

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: ZHEJIANG ZHONGCHENG COATING MATERIALS CO., LTD.

Free format text: FORMER OWNER: CHEN DAKUI

Effective date: 20080104

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20080104

Address after: Jiashan province Zhejiang County Economic Development Zone Liu Xi Road No. 26, zip code: 314100

Patentee after: Zhejiang Zhongchen Packaging Materials Co., Ltd.

Address before: Zhejiang province Jiashan County Weitang Town of Zhujianglu Road No. 38, zip code: 314100

Patentee before: Chen Dakui

C56 Change in the name or address of the patentee

Owner name: ZHEJIANG PROV ZHONGCHENG COATING MATERIALS CO., LT

Free format text: FORMER NAME: ZHEJIANG ZHONGCHENG COATING MATERIALS CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: Jiashan province Zhejiang County Economic Development Zone Liu Xi Road No. 26, zip code: 314100

Patentee after: Zhejiang Zhongcheng Packing Material Co., Ltd.

Address before: Jiashan province Zhejiang County Economic Development Zone Liu Xi Road No. 26, zip code: 314100

Patentee before: Zhejiang Zhongchen Packaging Materials Co., Ltd.

C17 Cessation of patent right
CX01 Expiry of patent term