CN101994473B - 一种门封条的制造方法 - Google Patents

一种门封条的制造方法 Download PDF

Info

Publication number
CN101994473B
CN101994473B CN200910184199.7A CN200910184199A CN101994473B CN 101994473 B CN101994473 B CN 101994473B CN 200910184199 A CN200910184199 A CN 200910184199A CN 101994473 B CN101994473 B CN 101994473B
Authority
CN
China
Prior art keywords
foamed plastics
plastic
extruder
gasket
door seal
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.)
Active
Application number
CN200910184199.7A
Other languages
English (en)
Other versions
CN101994473A (zh
Inventor
胡正明
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.)
Taizhou LG Electronics Refrigeration Co Ltd
Original Assignee
Taizhou LG Electronics Refrigeration 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 Taizhou LG Electronics Refrigeration Co Ltd filed Critical Taizhou LG Electronics Refrigeration Co Ltd
Priority to CN200910184199.7A priority Critical patent/CN101994473B/zh
Publication of CN101994473A publication Critical patent/CN101994473A/zh
Application granted granted Critical
Publication of CN101994473B publication Critical patent/CN101994473B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/12Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90Thermal 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
    • B29C48/908Thermal 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 characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911Cooling
    • B29C48/9115Cooling of hollow articles
    • B29C48/912Cooling of hollow articles of tubular films
    • B29C48/913Cooling of hollow articles of tubular films externally
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911Cooling
    • B29C48/9135Cooling of flat articles, e.g. using specially adapted supporting means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

本发明涉及一种门封条,包括门封条基材,还包括门封条芯材,所述门封条芯材设置在门封条基材内,所述门封条芯材为泡沫塑料,其制造方法包括如下步骤:a.将作为门封条芯材的泡沫塑料经挤出机挤出;b.将作为门封条基材的塑料粒子经挤出机成型;c.所述将步骤a中为门封条芯材的泡沫塑料挤入到步骤b中成型的门封条中,通过水冷却系统中的定型模降温定型;d.通过裁剪机裁剪成品;本申请的发明在PVC挤出成型后,使用软质发泡进行填充,提高门封条的保温性能,解决冰箱保温瓶颈。同时软质发泡压缩复原率将远优于原PVC胶套,故本发明的门封条能提高与箱体的贴合性,从而防止冰箱内部冷气泄露导致的耗电量高。

Description

一种门封条的制造方法
技术领域
本发明涉及一种家电部件的制造方法,特别是涉及一种门封条的制造方法。
背景技术
电冰箱作为家用电器,已经成为城镇居民的必备用品。门封条在冰箱的保温隔热中起到很重要作用。
现有的冰箱门封条大多数由磁条、气囊等部件组成,并利用专用挤塑磨具用软质的PVC塑料整体挤出成型。周围的温度的变化会直接影响PVC的软硬度,夏天环境温度相对较高,门封条比较软,门开闭过程中,气囊容易变形,从而引起门封条与冰箱箱体门框贴合不良;冬天环境温度相对较低,冰箱门封条比较硬,遇冷后会出现收缩现象,会造成冰箱箱体内的冷气泄露,另外,由于使用较久门封条内部的磁条也可能会消磁,从而造成密封不严,影响冰箱的保温性能。
发明内容
本发明目的是提高门封条的保温性能。
为达到此目的,本发明提供了一种门封条,包括门封条基材,还包括门封条芯材,所述门封条芯材设置在门封条基材内,所述门封条芯材为泡沫塑料。其制造方法,包括如下步骤:
a.将作为门封条芯材的泡沫塑料投入泡沫塑料进料筒,在泡沫塑料挤出机中,经过螺杆旋转和加热,使泡沫塑料混合、熔融,之后经泡沫塑料挤出机模头挤出;
1)将所述泡沫塑料投入泡沫塑料进料筒;
2)所述泡沫塑料通过泡沫塑料挤出机,经泡沫塑料挤出机内的螺杆旋转和加热,使泡沫塑料混合、熔融;
3)混合后材料经泡沫塑料挤出机模头挤出;
b.将作为门封条基材的塑料粒子烘干后投入塑料粒子进料筒,在塑料挤出机中,经过螺杆旋转和加热,塑料粒子被混合、熔融,之后经塑料挤出机模头挤出成型:
1)将所述塑料粒子烘干;
2)将所述塑料粒子投入塑料粒子进料筒;
3)所述塑料粒子通过塑料挤出机,经塑料挤出机的螺杆旋转和加热,使塑料粒子混合、熔融;
4)混合后材料经塑料挤出机模头挤出成型;
c.所述将步骤a中为门封条芯材的泡沫塑料挤入到步骤b中成型的门封条中,通过水冷却系统中的定型模降温定型;
d.通过裁剪机裁剪成品;
1)成型后材料门封条通过牵引机到达裁剪机;
2)所述裁剪机根据需要长度裁剪。
本发明的方法优点是:在PVC挤出成型后,使用软质发泡进行填充,提高门封条的保温性能,解决冰箱保温瓶颈。同时软质发泡压缩复原率将远优于原PVC气囊,故本方法制造的门封条能提高与箱体的贴合性。
作为本发明的方法的另一种改进,所述步骤b中塑料粒子还可以分两块挤出成型,所述的步骤a中泡沫塑料挤出成型,分别通过水冷却系统中的定型模降温定型,所述的定型后为门封条基材的两块塑料粒子包裹定型后为门封条芯材的泡沫塑料,经过熔接机熔接使两块包裹成型泡沫塑料的塑料边缘进行缝合,所述塑料边缘熔接缝合后经成品定型冷却设备冷却定型。这样可减少因整体成型泡沫塑料与外层塑料间产生的缝隙,从而提高门封条成品的性能。所述门封条分两块成型,其优点是可根据所需门封条的形状及生产工艺的难易进行选择。
附图说明
图1为本发明门封条的制造工序的设备示意图
图2为熔接机熔接的一种方式
图3为熔接机熔接的另一种方式
图4为本发明门封条的另一种制造工序的设备示意图
1、塑料粒子进料筒;  2、泡沫塑料进料筒;    3、塑料挤出机;
4、泡沫塑料挤出机;  5、水冷却系统;        6、定型模;
7、熔接机;          8、成品定型冷却设备;  9、牵引机;
10、裁剪机;
具体实施方式
以下结合附图和实施例对本发明做详细的说明。
本发明提供了一种门封条,包括门封条基材,还包括门封条芯材,所述门封条芯材设置在门封条基材内,所述门封条芯材为泡沫塑料。
其中作为门封条基材的塑料粒子可由聚氯乙烯、热塑性聚氨酯(TPU),热塑性弹性材料(TPO)或聚烯烃热塑性弹性材料(TPE)其中一种或两种或两种以上材料组合而成。
其中作为门封条基材芯材的泡沫塑料,可由含有聚乙烯(PE),橡胶(Rubber),聚苯乙烯(PS)等加起泡剂组成,或者由聚醚多元醇与异氰酸酯组合而成。
本发明方法实施的一种门封条的制造方法如图1所示,采用塑料粒子分两块成型,包括如下步骤:
a.将作为门封条芯材的泡沫塑料投入泡沫塑料进料筒2,在泡沫塑料挤出机4中,经过螺杆旋转和加热,使泡沫塑料混合、熔融,之后经泡沫塑料挤出机4模头挤出成型;
先将所述泡沫塑料投入泡沫塑料进料筒2,在将所述泡沫塑料通过泡沫塑料挤出机4,经泡沫塑料挤出机4内的螺杆旋转和加热,使泡沫塑料混合、熔融,最后混合后材料经泡沫塑料挤出机4模头挤出成型。
b.将作为门封条基材的塑料粒子烘干后投入塑料粒子进料筒1,在塑料挤出机3中,经过螺杆旋转和加热,塑料粒子被混合、熔融,之后经塑料挤出机3模头挤出成型:
先将所述塑料粒子烘干,再将所述塑料粒子投入两边的塑料粒子进料筒1,之后所述塑料粒子通过塑料挤出机3,经塑料挤出机3的螺杆旋转和加热,使塑料粒子混合、熔融,最后混合后材料经塑料挤出机3模头挤出成型。
c.所述将步骤a中为门封条芯材的泡沫塑料挤入到步骤b中成型的门封条中,通过水冷却系统5,在其中的定型模6降温定型,在经过熔接机7缝合,之后经过成品定型冷却设备8进行冷却;
将步骤a中为门封条芯材的成型泡沫塑料挤入到步骤b中成型的门封条中,连续通过水冷却系统5,经过水冷系统5中的定型模6降温定型,之后经过熔接机7熔接使两块外层塑料包裹泡沫塑料进行缝合,由于熔接后的成品温度过高,塑料边缘熔接缝合后需经成品定型冷却设备8冷却定型。
熔接时采用如图2所示的左右熔接方式或如图3所示的上下熔接方式,以便于根据所需门封条的形状及生产工艺的难易进行选择。
d.通过裁剪机裁剪成品;
所述门封条成型后材料通过牵引机9到达裁剪机10,最后经由裁剪机10根据需要长度裁剪。
如图4所示本发明方法实施的另一种门封条的制造方法,采用塑料粒子整体成型,为方便操作将塑料挤出机3与泡沫塑料挤出机4首尾相连,包括如下步骤:
a.将作为门封条芯材的泡沫塑料投入泡沫塑料进料筒2,在泡沫塑料挤出机4中,经过螺杆旋转和加热,使泡沫塑料混合、熔融,之后经泡沫塑料挤出机4模头挤出;
先将所述泡沫塑料投入泡沫塑料进料筒2,在将所述泡沫塑料通过泡沫塑料挤出机4,经泡沫塑料挤出机4内的螺杆旋转和加热,使泡沫塑料混合、熔融,最后混合后材料经泡沫塑料挤出机4模头挤出;
b.将作为门封条基材的塑料粒子烘干后投入塑料粒子进料筒1,在塑料挤出机3中,经过螺杆旋转和加热,塑料粒子被混合、熔融,之后经塑料挤出机3模头挤出成型:
先将所述塑料粒子烘干,再将所述塑料粒子投入塑料粒子进料筒1,之后所述塑料粒子通过塑料挤出机3,经塑料挤出机3的螺杆旋转和加热,使塑料粒子混合、熔融,最后混合后材料经塑料挤出机3模头挤出成型。
因为这种实施例是整体成型,所以不需要熔接机7熔接。
c.所述将步骤a中为门封条芯材的泡沫塑料挤入到步骤b中成型的门封条中,通过水冷却系统5中的定型模6降温定型;
d.通过裁剪机10裁剪成品;
所述门封条已经成型,只需要通过牵引机9到达裁剪机10,最后经由裁剪机10根据需要长度裁剪,即可成品。
这种实施例造价便宜,且容易实施,易于大批量生产。
本发明在PVC挤出成型后,使用软质发泡进行填充,提高门封条的保温性能,解决冰箱保温瓶颈。经过试验发现软质发泡压缩复原率远优于原PVC胶套,故本发明的门封条能提高与箱体的贴合性。

Claims (2)

1.一种门封条的制造方法,其特征在于,包括如下步骤:
a.将作为门封条芯材的泡沫塑料投入泡沫塑料进料筒(2),在泡沫塑料挤出机(4)中,经过螺杆旋转和加热,使泡沫塑料混合、熔融,之后经泡沫塑料挤出机(4)模头挤出;
1)将所述泡沫塑料投入泡沫塑料进料筒(2);
2)所述泡沫塑料通过泡沫塑料挤出机(4),经泡沫塑料挤出机(4)内的螺杆旋转和加热,使泡沫塑料混合、熔融;
3)混合后材料经泡沫塑料挤出机(4)模头挤出;
b.将作为门封条基材的塑料粒子烘干后投入塑料粒子进料筒(1),在塑料挤出机(3)中,经过螺杆旋转和加热,塑料粒子被混合、熔融,之后塑料粒子分两块经塑料挤出机(3)模头挤出成型:
1)将所述塑料粒子烘干;
2)将所述塑料粒子投入塑料粒子进料筒(1);
3)所述塑料粒子通过塑料挤出机(3),经塑料挤出机(3)的螺杆旋转和加热,使塑料粒子混合、熔融;
4)混合后材料经塑料挤出机(3)模头挤出成型;
c.将步骤a中为门封条芯材的泡沫塑料挤入到步骤b中成型的门封条中,通过水冷却系统(5)中的定型模(6)降温定型,所述的定型后为门封条基材的两块塑料粒子包裹定型后为门封条芯材的泡沫塑料,经过熔接机(7)熔接使两块包裹成型泡沫塑料的塑料边缘进行缝合;
d.通过裁剪机(10)裁剪成品;
1)成型后材料门封条通过牵引机(9)到达裁剪机(10);
2)所述裁剪机(10)根据需要长度裁剪。
2.根据权利要求1所述的一种门封条的制造方法,其特征在于:所述塑料边缘熔接缝合后经成品定型冷却设备(8)冷却定型。
CN200910184199.7A 2009-08-26 2009-08-26 一种门封条的制造方法 Active CN101994473B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910184199.7A CN101994473B (zh) 2009-08-26 2009-08-26 一种门封条的制造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910184199.7A CN101994473B (zh) 2009-08-26 2009-08-26 一种门封条的制造方法

Publications (2)

Publication Number Publication Date
CN101994473A CN101994473A (zh) 2011-03-30
CN101994473B true CN101994473B (zh) 2014-08-20

Family

ID=43785160

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910184199.7A Active CN101994473B (zh) 2009-08-26 2009-08-26 一种门封条的制造方法

Country Status (1)

Country Link
CN (1) CN101994473B (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102350779A (zh) * 2011-06-29 2012-02-15 中山市东凤镇日溢塑胶型材厂 一种密封胶条的制作方法
CN113739492A (zh) * 2021-08-26 2021-12-03 安徽康佳同创电器有限公司 一种冰箱门及冰箱
CN115674712B (zh) * 2022-10-14 2023-06-02 天津瑞丰橡塑制品有限公司 一种门窗隔热件生产装置、门窗隔热件

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2285946A (en) * 1993-06-07 1995-08-02 Tokiwa Chem Ind Ltd Method for manufacturing weather strip for motor vehicles
WO1996030185A1 (fr) * 1995-03-27 1996-10-03 Araco Kabushiki Kaisha Procede de fabrication d'articles moules multicouches
CN1423589A (zh) * 2000-04-13 2003-06-11 奥利-本特·拉斯马森 在共挤压加工中接合薄片或条带形成流的方法与装置
CN1544235A (zh) * 2003-11-14 2004-11-10 吴彩云 不同塑料材料共挤复合的塑料型材的生产方法及模具
CN201013187Y (zh) * 2007-03-22 2008-01-30 朱建伟 推拉门窗密封条

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2285946A (en) * 1993-06-07 1995-08-02 Tokiwa Chem Ind Ltd Method for manufacturing weather strip for motor vehicles
WO1996030185A1 (fr) * 1995-03-27 1996-10-03 Araco Kabushiki Kaisha Procede de fabrication d'articles moules multicouches
CN1423589A (zh) * 2000-04-13 2003-06-11 奥利-本特·拉斯马森 在共挤压加工中接合薄片或条带形成流的方法与装置
CN1544235A (zh) * 2003-11-14 2004-11-10 吴彩云 不同塑料材料共挤复合的塑料型材的生产方法及模具
CN201013187Y (zh) * 2007-03-22 2008-01-30 朱建伟 推拉门窗密封条

Also Published As

Publication number Publication date
CN101994473A (zh) 2011-03-30

Similar Documents

Publication Publication Date Title
CN107501837A (zh) 一种热塑性弹性体发泡门封条其制备方法
CN104401076B (zh) 一种ldpe高发泡复合hdpe膜及其制备方法
CN104231462B (zh) Gpes硬质泡沫复合塑料保温板及其制造方法
CN101994473B (zh) 一种门封条的制造方法
CN103224662B (zh) 一种高弹性低密度聚乙烯发泡复合材料及其制备方法
CN102778101A (zh) 一种热塑性弹性体tpe与改性pp共挤的冰箱磁性门封条及其制造方法
CN111391257B (zh) 一种电线插头立式注塑成型机
CN101182894A (zh) 聚乙烯发泡保温输水管及其生产方法
WO2014015558A1 (zh) 一种环保无卤的热塑性弹性体tps磁性门封条及其制造方法
CN106009353B (zh) 绝热用石墨挤塑板及其制备工艺
GB1018178A (en) Process and apparatus for the production of mouldings or extrusions having a cellular structure from thermoplastic synthetic materials
CN102241854A (zh) 一种废旧聚丙烯和橡胶制备的泡沫塑料片材及其制备方法
CN208431514U (zh) 一种连续多层保温复合管材
CN106977759A (zh) 制造发泡型材的方法和可利用该方法获得的发泡型材
CN110561710A (zh) U-pvc异型材和改性tpe胶条软硬共挤一步成型的方法
CN100544937C (zh) 聚丙烯发泡片材制造方法
CN207207071U (zh) 管材成型设备用挤压模具
CN100500407C (zh) 聚丙烯发泡片材与无纺布复合制造方法
CN108638423A (zh) 采用混合发泡剂的微孔发泡及模内装饰复合成型开模装置
CN100493890C (zh) 一种电冰箱腔体的制造方法
CN204005203U (zh) 储气袋及其生产线
CN106905586A (zh) 微发泡功能母粒组合物及其制备方法以及冰箱发泡板
CN205889828U (zh) 挤塑板宽幅挤出模具
US9724857B2 (en) Compression molded polymeric foam articles and methods
CN103434153A (zh) 塑料挤出物理低发泡成型方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant