CN103624945A - 一种塑胶储物架的注塑工艺 - Google Patents

一种塑胶储物架的注塑工艺 Download PDF

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CN103624945A
CN103624945A CN201210312413.4A CN201210312413A CN103624945A CN 103624945 A CN103624945 A CN 103624945A CN 201210312413 A CN201210312413 A CN 201210312413A CN 103624945 A CN103624945 A CN 103624945A
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plastic
injection molding
plasticizing
barrel
mould
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Inventor
徐羊
周伟
严兵
尚悦波
赵静斌
商纪苗
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SHENGZHOU HONGYANG PLASTIC CO Ltd
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SHENGZHOU HONGYANG PLASTIC CO Ltd
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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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/78—Measuring, controlling or regulating of temperature
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76498—Pressure
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76531—Temperature
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76551—Time
    • B29C2945/76561—Time duration
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76655—Location of control
    • B29C2945/76658—Injection unit
    • B29C2945/76668—Injection unit barrel
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76655—Location of control
    • B29C2945/76658—Injection unit
    • B29C2945/76688—Injection unit nozzle
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76655—Location of control
    • B29C2945/76732—Mould

Abstract

本发明公开了一种塑胶储物架的注塑工艺，以废旧塑胶颗粒和颜料为主要材料，经过配色、加料、塑化、注塑过程制得，废旧塑胶颗粒为回收塑胶颗粒或边角料，为PP塑胶材料。注塑工艺过程中，料筒温度为180-220℃，喷嘴温度为180-215℃，模具温度为30-60℃；塑化压力为40-90MPa，注塑压力为40-100MPa，充模时间为3.5-5.5s，保压时间为0.5-2.0s，闭模冷却时间为12-20s。本发明具有节能环保的特点，只需一次注塑成型，生产工艺简单，效率高。

Description

一种塑胶储物架的注塑工艺
(一)技术领域
本发明涉及一种塑胶储物架的注塑工艺。
(二)背景技术
塑胶制品广泛应用现代生活中的每一个领域，例如家用电器、仪器仪表、电线电缆、建筑器材、通讯电子、汽车工业、航天航空、日用五金等。生产塑胶制品成型的工艺主要有注塑、挤出、吹塑成型等，注塑成型是塑料模塑成型的一种重要方法，具有成型周期短，对成型塑料适应性强，生产效率高等特点。然而，许多注塑需要多次注塑，生产工艺复杂，效率低。
(三)发明内容
本发明的目的在于克服了上述的缺陷，提供一种塑胶储物架的注塑工艺。
本发明的技术方案是：一种塑胶储物架的注塑工艺，以废旧塑胶颗粒和颜料为主要材料，包括以下步骤：
(1)配色：将颜料与废塑胶颗粒混合搅拌均匀；
(2)加料：将步骤(1)制得的混合物料置于料筒中加热搅拌；
(3)塑化：塑料在180-220℃的料筒中受热，塑化压力为40-90MPa下，将固体颗粒转化成粘流态并且形成具有良好可塑性均匀熔体；
(4)注塑：将步骤(3)得到的熔体注入到模具内，充模时间为3.5-5.5s，喷嘴温度为180-215℃，固化后，在40-100MPa下保压0.5-2.0s，经过12-20s后，冷却到30-60℃后开模即得到塑胶制品。
所述废旧塑胶颗粒为回收塑胶颗粒或边角料，为PP塑胶材料。
优选地，所述料筒的温度为183℃，
优选地，所述塑化压力为80MPa，注塑压力为38MPa。
优选地，所述充模时间为4s，保压时间为1s，闭模冷却时间为15s。
与现有技术相比，本发明具有以下优点：采用回收的废塑胶作为原料，成本低，节能环保；生产过程一次注塑成型，效率高。
(四)具体实施方式
下面结合具体实施例对本发明进行进一步描述。
实施例1：
一种塑胶储物架的注塑工艺，以废旧塑胶颗粒和颜料为主要材料，包括以下步骤：
(1)配色：将颜料与废塑胶颗粒混合搅拌均匀；
(2)加料：将步骤(1)制得的混合物料置于料筒中加热搅拌；
(3)塑化：塑料在180℃的料筒中受热，塑化压力为40MPa下，将固体颗粒转化成粘流态并且形成具有良好可塑性均匀熔体；
(4)注塑：将步骤(3)得到的熔体注入到模具内，充模时间为3.5s，喷嘴温度为180℃，固化后，在40MPa下保压0.5s，经过12s后，冷却到30℃后开模即得到塑胶制品。
所述废旧塑胶颗粒为回收塑胶颗粒或边角料，为PP塑胶材料。
实施例2：
一种塑胶储物架的注塑工艺，以废旧塑胶颗粒和颜料为主要材料，包括以下步骤：
(1)配色：将颜料与废塑胶颗粒混合搅拌均匀；
(2)加料：将步骤(1)制得的混合物料置于料筒中加热搅拌；
(3)塑化：塑料在183℃的料筒中受热，塑化压力为80MPa下，将固体颗粒转化成粘流态并且形成具有良好可塑性均匀熔体；
(4)注塑：将步骤(3)得到的熔体注入到模具内，充模时间为4.3s，喷嘴温度为185℃，固化后，在43MPa下保压1.0s，经过15s后，冷却到40℃后开模即得到塑胶制品。
所述废旧塑胶颗粒为回收塑胶颗粒或边角料，为PP塑胶材料。
实施例3：
一种塑胶储物架的注塑工艺，以废旧塑胶颗粒和颜料为主要材料，包括以下步骤：
(1)配色：将颜料与废塑胶颗粒混合搅拌均匀；
(2)加料：将步骤(1)制得的混合物料置于料筒中加热搅拌；
(3)塑化：塑料在215℃的料筒中受热，塑化压力为85MPa下，将固体颗粒转化成粘流态并且形成具有良好可塑性均匀熔体；
(4)注塑：将步骤(3)得到的熔体注入到模具内，充模时间为5.0s，喷嘴温度为210℃，固化后，在90MPa下保压1.5s，经过18s后，冷却到50℃后开模即得到塑胶制品。
所述废旧塑胶颗粒为回收塑胶颗粒或边角料，为PP塑胶材料。
实施例4：
一种塑胶储物架的注塑工艺，以废旧塑胶颗粒和颜料为主要材料，包括以下步骤：
(1)配色：将颜料与废塑胶颗粒混合搅拌均匀；
(2)加料：将步骤(1)制得的混合物料置于料筒中加热搅拌；
(3)塑化：塑料在220℃的料筒中受热，塑化压力为90MPa下，将固体颗粒转化成粘流态并且形成具有良好可塑性均匀熔体；
(4)注塑：将步骤(3)得到的熔体注入到模具内，充模时间为5.5s，喷嘴温度为215℃，固化后，在100MPa下保压2.0s，经过20s后，冷却到60℃后开模即得到塑胶制品。
所述废旧塑胶颗粒为回收塑胶颗粒或边角料，为PP塑胶材料。
实施例5：
一种塑胶储物架的注塑工艺，以废旧塑胶颗粒和颜料为主要材料，包括以下步骤：
(1)配色：将颜料与废塑胶颗粒混合搅拌均匀；
(2)加料：将步骤(1)制得的混合物料置于料筒中加热搅拌；
(3)塑化：塑料在195℃的料筒中受热，塑化压力为70MPa下，将固体颗粒转化成粘流态并且形成具有良好可塑性均匀熔体；
(4)注塑：将步骤(3)得到的熔体注入到模具内，充模时间为4.5s，喷嘴温度为198℃，固化后，在60MPa下保压1.3s，经过16s后，冷却到45℃后开模即得到塑胶制品。
所述废旧塑胶颗粒为回收塑胶颗粒或边角料，为PP塑胶材料。

Claims (4)

1.一种塑胶储物架的注塑工艺，以废旧塑胶颗粒和颜料为主要材料，其特征在于，包括以下步骤：
(1)配色：将颜料与废塑胶颗粒混合搅拌均匀；
(2)加料：将步骤(1)制得的混合物料置于料筒中加热搅拌；
(3)塑化：塑料在180-220℃的料筒中受热，塑化压力为40-90MPa下，将固体颗粒转化成粘流态并且形成具有良好可塑性均匀熔体；
(4)注塑：将步骤(3)得到的熔体注入到模具内，充模时间为3.5-5.5s，喷嘴温度为180-215℃，固化后，在40-100MPa下保压0.5-2.0s，经过后，冷却12-20s后，模具温度为30-60℃时开模即得到塑胶制品。
2.根据权利要求1所述的塑胶储物架的注塑工艺，其特征在于：所述料筒的温度为183℃。
3.根据权利要求1所述的塑胶储物架的注塑工艺，其特征在于：所述塑化压力为80MPa，注塑压力为43MPa。
4.根据权利要求1所述的塑胶储物架的注塑工艺，其特征在于：所述充模时间为4s，保压时间为1s，闭模冷却时间为15s。
CN201210312413.4A 2012-08-29 2012-08-29 一种塑胶储物架的注塑工艺 Pending CN103624945A (zh)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101698346A (zh) * 2009-11-04 2010-04-28 王庆华 多色混色注塑机及其成型工艺
CN102532715A (zh) * 2012-02-13 2012-07-04 江苏力达塑料托盘制造有限公司 一种再生塑料一次性注塑成型制备塑料托盘的方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101698346A (zh) * 2009-11-04 2010-04-28 王庆华 多色混色注塑机及其成型工艺
CN102532715A (zh) * 2012-02-13 2012-07-04 江苏力达塑料托盘制造有限公司 一种再生塑料一次性注塑成型制备塑料托盘的方法

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Application publication date: 20140312