CN112377447A - 一种离心式全氟泵专用涡壳结构及其生产工艺 - Google Patents

一种离心式全氟泵专用涡壳结构及其生产工艺 Download PDF

Info

Publication number
CN112377447A
CN112377447A CN202011126090.0A CN202011126090A CN112377447A CN 112377447 A CN112377447 A CN 112377447A CN 202011126090 A CN202011126090 A CN 202011126090A CN 112377447 A CN112377447 A CN 112377447A
Authority
CN
China
Prior art keywords
volute
main body
flange
injection
water inlet
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
CN202011126090.0A
Other languages
English (en)
Inventor
查振海
张川
赵宝林
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.)
NANFANG PUMP INDUSTRY CO LTD
Original Assignee
NANFANG PUMP INDUSTRY 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 NANFANG PUMP INDUSTRY CO LTD filed Critical NANFANG PUMP INDUSTRY CO LTD
Priority to CN202011126090.0A priority Critical patent/CN112377447A/zh
Publication of CN112377447A publication Critical patent/CN112377447A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/561—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using screw-threads being integral at least to one of the parts to be joined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4293—Details of fluid inlet or outlet
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • F05D2260/602—Drainage

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

本发明公开了一种离心式全氟泵专用涡壳结构及其生产工艺，包括一体式注塑成型的蜗壳主体，该蜗壳主体上开设有出水口和入水口，且出水口、入水口所在轴线相互垂直，蜗壳主体上与入水口相对的一侧镶嵌有嵌件螺母用于固装叶轮；出水口外周通过锯齿形螺纹固装有出口法兰，入水口外周通过锯齿形螺纹固装有入口法兰。该生产工艺包括合模、注射、保压、冷却、开模、脱模和安装法兰。本发明的有益效果为：涡壳主体采用注塑工艺成型，其生产效率较烧结工艺大大提高，单个涡壳的成型周期由烧结的3～4个小时缩短到注塑的3～5分钟；出口法兰、入口法兰通过锯齿形螺纹与涡壳主体连接；增加了涡壳放泄孔设计，避免在温度过低时因液体结冰而损坏涡壳。

Description

一种离心式全氟泵专用涡壳结构及其生产工艺
技术领域
本发明涉及全氟泵的领域，具体涉及一种离心式全氟泵专用涡壳结构及其生产工艺。
背景技术
目前，全氟泵蜗壳制作工艺基本采用进口法兰按整体镶嵌的形式镶嵌在涡壳进口，出口为制成环状凸台，后安装特制的法兰，生产时整套内外烧结模与内螺母嵌件组一起装配，内充填氟塑料颗粒料，将带料的模具紧固好置于烤箱内调温烧制后脱模取件的方式。此烧结工艺缺点：1、烧结一个涡壳的耗时约3～4个小时，烤时占用模具与烤箱设备，为产能所需需备多套模具与多烤箱，生产率低；2、在烤制泵壳时因模具内外温度场差别大，部分有烤焦碳化，部分未熔透，易出缩孔气孔次品率高；3、烧制塑件时由内嵌件金属与塑料的热收缩比不同及出模冷却时间差，氟塑料内缩孔及气孔现象很难消除，导致成品零件容易产生收缩变形与镶嵌件分离，批缝等多缺陷存大，次废品率高；4、烧结工艺手工操作繁杂，只能成型规则外形零件，较难满足涡壳的水力流线型不规则形状，导致作为泵的水力部件水力效率低，耗能不环保等；5、出口的环状凸台连接半开组合法兰，加工制造成本高且法兰受力差；6、因烧结时温度在350～400℃时，部分过热氟料炭化燃烧产生有害气体，对区域操作人员人身伤害大。
发明内容
本发明的目的在于克服现有技术存在的不足，而提供一种离心式全氟泵专用涡壳结构及其生产工艺，解决了现有工艺烧结耗时长、产生有害气体、威胁操作人员生命安全的问题。
本发明的目的是通过如下技术方案来完成的：一种离心式全氟泵专用涡壳结构，包括一体式注塑成型的蜗壳主体，该蜗壳主体上开设有出水口和入水口，且出水口、入水口所在轴线相互垂直，蜗壳主体上与入水口相对的一侧镶嵌有嵌件螺母用于固装叶轮；所述出水口外周通过锯齿形螺纹固装有出口法兰，所述入水口外周通过锯齿形螺纹固装有入口法兰。
作为进一步的技术方案，所述蜗壳主体底部开设有放泄孔用于排出蜗壳内的液体。
上述离心式全氟泵专用涡壳结构的生产工艺，包括以下步骤：
1)合模：将嵌件螺母预埋入注塑模具的型腔内，上下模具合模；
2)注射：注塑机通过注塑浇口开始注射成型材料，使蜗壳主体一体成型；
3)保压：步骤2)注射完成后进行保压；
4)冷却：步骤3)保压完成后进行冷却；
5)开模、脱模：步骤4)冷却完成后上下模具开模，将带有嵌件螺母的蜗壳主体从模具中脱出；
6)安装法兰：在蜗壳主体的出水口通过锯齿形螺纹安装出口法兰，在蜗壳主体的入水口通过锯齿形螺纹安装入口法兰。
作为进一步的技术方案，步骤1)中所述上下模具合模时的模具温度为110～130℃。
作为进一步的技术方案，步骤2)中所述成型材料为氟塑料；所述注塑机采用螺杆—直线型注塑机，注射压力为80～130MPa，注射材料温度为290～300℃，注射时间为1～3s。
作为进一步的技术方案，步骤3)中保压压力为50～60MPa，保压时间为20～60s。
作为进一步的技术方案，步骤4)中冷却时间为20～60s。
本发明的有益效果为：
1、涡壳主体采用注塑工艺成型，其生产效率较烧结工艺大大提高，单个涡壳的成型周期由烧结的3～4个小时缩短到注塑的3～5分钟；
2、降低了人力生产成本，增强了涡壳主体零件中镶嵌的金属零件的融合度，减少了生产过程中由于温度的变化所产生的的缺陷与有害气体产生，提高了零件的性能质量与成品率；
3、出口法兰、入口法兰通过锯齿形螺纹与涡壳主体连接，法兰连接尺寸可以根据用户现场安装尺寸灵活更换，且锯齿形螺纹具有自锁性好、单向受力性能好的优点；
4、增加了涡壳放泄孔设计，设备长期停用时，将设备里的液体排放干净，避免在温度过低时因液体结冰而损坏涡壳。
附图说明
图1为本发明的结构示意图。
附图标记说明：嵌件螺母1、出口法兰2、蜗壳主体3、入口法兰4、出水口5、入水口6、放泄孔7。
具体实施方式
下面将结合附图对本发明做详细的介绍：
实施例：如附图1所示，一种离心式全氟泵专用涡壳结构及其生产工艺，包括一体式注塑成型的蜗壳主体3，该蜗壳主体3上开设有出水口5和入水口6，且出水口5、入水口6所在轴线相互垂直，蜗壳主体3上与入水口6相对的一侧镶嵌有嵌件螺母1用于固装叶轮；所述出水口5外周通过锯齿形螺纹固装有出口法兰2，所述入水口6外周通过锯齿形螺纹固装有入口法兰4。锯齿形螺纹的牙型按照GB/T 13576.1执行。所述蜗壳主体3底部开设有放泄孔7用于排出蜗壳内的液体。
上述离心式全氟泵专用涡壳结构的生产工艺，包括以下步骤：
1)合模：将嵌件螺母1预埋入注塑模具的型腔内，上下模具合模，合模时的模具温度为110～130℃；
2)注射：注塑机通过注塑浇口开始注射成型材料(氟塑料)，使蜗壳主体3一体成型；所述注塑机采用螺杆—直线型注塑机，注射压力为80～130MPa，注射材料温度为290～300℃，注射时间为1～3s；
3)保压：步骤2)注射完成后进行保压，保压压力为50～60MPa，保压时间为20～60s；
4)冷却：步骤3)保压完成后进行冷却，冷却时间为20～60s；
5)开模、脱模：步骤4)冷却完成后上下模具开模，将带有嵌件螺母1的蜗壳主体3从模具中脱出；
6)安装法兰：在蜗壳主体3的出水口5通过锯齿形螺纹安装出口法兰2，在蜗壳主体3的入水口6通过锯齿形螺纹安装入口法兰4。
本发明通过改进成形工艺、优化符合水力设计要求的涡壳水力结构形状尺寸，涡壳高压力注塑工艺一次成型工艺，制成注塑型氟塑料涡壳零件。本发明工艺的优势在于：大幅提高了生产效率，平均注塑一个蜗壳主体仅耗时3～5分钟，自动进料、加温、喷注、成形、冷却、脱料取件，制造成本低；注塑料温度约290～300℃，该低于氟塑料碳化反应点，故在此过程中基本无有害气体产生，环保安全；注塑成型的蜗壳主体表面光滑，水力磨擦损失小，水力效率高，且色泽均匀、外形美观，壳外多附筋结构受力好变形小；因注塑时模内温度相较烧结工艺温度低及料温均匀，料与模热热变形小，嵌件结合分离不明显，使得嵌件螺母1与蜗壳主体3的融合性好，使用牢固可靠；涡壳的进口法兰和出口法兰颈制作注塑形锯齿形螺纹，因锯齿形螺纹具有自锁性好、单向受力性能好的优点，法兰连接时受预紧力与拉应力可提高一档，由市场常规产品的0.6～1.0MPa提高至1.0～1.6MPa；蜗壳主体上增加放泄孔7结构，功能上与铸造件相当，且不用再进行机加工。
可以理解的是，对本领域技术人员来说，对本发明的技术方案及发明构思加以等同替换或改变都应属于本发明所附的权利要求的保护范围。

Claims (7)

1.一种离心式全氟泵专用涡壳结构，其特征在于：包括一体式注塑成型的蜗壳主体(3)，该蜗壳主体(3)上开设有出水口(5)和入水口(6)，且出水口(5)、入水口(6)所在轴线相互垂直，蜗壳主体(3)上与入水口(6)相对的一侧镶嵌有嵌件螺母(1)用于固装叶轮；所述出水口(5)外周通过锯齿形螺纹固装有出口法兰(2)，所述入水口(6)外周通过锯齿形螺纹固装有入口法兰(4)。
2.根据权利要求1所述的离心式全氟泵专用涡壳结构，其特征在于：所述蜗壳主体(3)底部开设有放泄孔(7)用于排出蜗壳内的液体。
3.一种离心式全氟泵专用涡壳结构的生产工艺，其特征在于：包括以下步骤：
1)合模：将嵌件螺母(1)预埋入注塑模具的型腔内，上下模具合模；
2)注射：注塑机通过注塑浇口开始注射成型材料，使蜗壳主体(3)一体成型；
3)保压：步骤2)注射完成后进行保压；
4)冷却：步骤3)保压完成后进行冷却；
5)开模、脱模：步骤4)冷却完成后上下模具开模，将带有嵌件螺母(1)的蜗壳主体(3)从模具中脱出；
6)安装法兰：在蜗壳主体(3)的出水口(5)通过锯齿形螺纹安装出口法兰(2)，在蜗壳主体(3)的入水口(6)通过锯齿形螺纹安装入口法兰(4)。
4.根据权利要求3所述的离心式全氟泵专用涡壳结构的生产工艺，其特征在于：步骤1)中所述上下模具合模时的模具温度为110～130℃。
5.根据权利要求3所述的离心式全氟泵专用涡壳结构的生产工艺，其特征在于：步骤2)中所述成型材料为氟塑料；所述注塑机采用螺杆—直线型注塑机，注射压力为80～130MPa，注射材料温度为290～300℃，注射时间为1～3s。
6.根据权利要求3所述的离心式全氟泵专用涡壳结构的生产工艺，其特征在于：步骤3)中保压压力为50～60MPa，保压时间为20～60s。
7.根据权利要求3所述的离心式全氟泵专用涡壳结构的生产工艺，其特征在于：步骤4)中冷却时间为20～60s。
CN202011126090.0A 2020-10-20 2020-10-20 一种离心式全氟泵专用涡壳结构及其生产工艺 Pending CN112377447A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011126090.0A CN112377447A (zh) 2020-10-20 2020-10-20 一种离心式全氟泵专用涡壳结构及其生产工艺

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011126090.0A CN112377447A (zh) 2020-10-20 2020-10-20 一种离心式全氟泵专用涡壳结构及其生产工艺

Publications (1)

Publication Number Publication Date
CN112377447A true CN112377447A (zh) 2021-02-19

Family

ID=74581664

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011126090.0A Pending CN112377447A (zh) 2020-10-20 2020-10-20 一种离心式全氟泵专用涡壳结构及其生产工艺

Country Status (1)

Country Link
CN (1) CN112377447A (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3551067A (en) * 1969-01-22 1970-12-29 Duriron Co Lined corrosion resistant pump
US4722664A (en) * 1981-06-05 1988-02-02 The Duriron Company, Inc. Lined corrosion resistant pump
CN2080577U (zh) * 1990-12-30 1991-07-10 靖江县氟合金泵厂 衬里自吸泵
CN101614213A (zh) * 2009-07-23 2009-12-30 蔡国华 一种磁力泵
CN203023068U (zh) * 2012-12-28 2013-06-26 中国神华能源股份有限公司 一种耐高温耐腐蚀离心泵
CN204253374U (zh) * 2014-10-24 2015-04-08 浙江伟光泵阀制造有限公司 一种衬塑耐磨离心泵
US20160363130A1 (en) * 2015-06-12 2016-12-15 Assoma Inc. Structure improvement of pump casing with pfa liner

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3551067A (en) * 1969-01-22 1970-12-29 Duriron Co Lined corrosion resistant pump
US4722664A (en) * 1981-06-05 1988-02-02 The Duriron Company, Inc. Lined corrosion resistant pump
CN2080577U (zh) * 1990-12-30 1991-07-10 靖江县氟合金泵厂 衬里自吸泵
CN101614213A (zh) * 2009-07-23 2009-12-30 蔡国华 一种磁力泵
CN203023068U (zh) * 2012-12-28 2013-06-26 中国神华能源股份有限公司 一种耐高温耐腐蚀离心泵
CN204253374U (zh) * 2014-10-24 2015-04-08 浙江伟光泵阀制造有限公司 一种衬塑耐磨离心泵
US20160363130A1 (en) * 2015-06-12 2016-12-15 Assoma Inc. Structure improvement of pump casing with pfa liner

Similar Documents

Publication Publication Date Title
CN104131995B (zh) 一种水泵叶轮的制造方法及水泵
CN112377447A (zh) 一种离心式全氟泵专用涡壳结构及其生产工艺
CN113306095A (zh) 一种野营灯主壳体的制备工艺
CN108644512A (zh) 一种钢衬聚四氟乙烯三通及其模压工艺
CN204604796U (zh) 一种注塑模具
CN208410606U (zh) 一种利用浮动浇口套自动切断侧浇口的模具装置
CN215550307U (zh) 一种实体塑胶产品生产用压铸装置
CN203019603U (zh) 一种衬塑磁力泵转子衬包模具
CN201394906Y (zh) 用于制备工程塑料离合器外罩的成型模具
CN214353860U (zh) 一种防止变形的透明pvc胶盒模具
CN208497594U (zh) 一种硅橡胶注射成型模芯的水阀接头
CN213450985U (zh) 一种离心式衬氟泵专用叶轮结构
CN206765238U (zh) 锁模牢固的压力管模具
CN221339377U (zh) 一种快速成型的冰箱塑料件注塑模具
CN210453516U (zh) 用于工程材料注塑的热嘴结构
CN205767269U (zh) 注塑模具水冷浇口套
CN221391907U (zh) 一种上模结构及塑盖压塑模具
CN208558035U (zh) 一种可快速冷却的简易化生产模胚
CN218171198U (zh) 用于汽车零部件加工的模具
CN221212113U (zh) 一种马桶下喷口用的定位工装
CN212888496U (zh) 一种碳纤维复合材料制品成型模具
CN216329893U (zh) 一种空调出风口的注塑模具
CN208645931U (zh) 模内吸真空装置
CN220995284U (zh) 一种冷胚注塑发泡模具
CN219466817U (zh) 一种蜡制品的多段式塑模模具

Legal Events

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

Application publication date: 20210219

RJ01 Rejection of invention patent application after publication