CN209666179U - An injection mold for demoulding of internal thread - Google Patents

An injection mold for demoulding of internal thread Download PDF

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CN209666179U
CN209666179U CN201920212129.7U CN201920212129U CN209666179U CN 209666179 U CN209666179 U CN 209666179U CN 201920212129 U CN201920212129 U CN 201920212129U CN 209666179 U CN209666179 U CN 209666179U
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gate
template
rotating
injection mold
product
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夏天
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Ningbo Polytechnic
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Ningbo Polytechnic
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Abstract

The utility model belongs to mould applications, provide a kind of injection mold for internal screw thread demoulding, it include: solid plate, it is offered into cast gate and several type chambers, each type chamber is uniformly surrounded on into cast gate peripheral region, cast gate lower end is provided with several gate channels, each gate channel is angularly disposed and its end is located at corresponding cavity side end, and each gate channel is communicated with corresponding type chamber;Moving template is movably set in solid plate lower end, several double wedges is provided on moving template upper surface;De- material component is formed, the upper end is provided with several rotation columns, and the activity of each rotation column is through moving template and the upper end stretches to that corresponding type is intracavitary, and each rotation column upper end is provided with screw thread corresponding with product;Product is enabled to detach rotation column when the rotation of rotation column.Compared with prior art, the utility model has the advantage of the material-removing structures that can be reduced in solid plate, reduce the manufacturing cost of solid plate.

Description

一种用于内螺纹脱模的注塑模具An injection mold for demoulding of internal thread

技术领域technical field

本实用新型属于模具领域,具体涉及一种用于内螺纹脱模的注塑模具。The utility model belongs to the field of moulds, in particular to an injection mold used for internal thread demoulding.

背景技术Background technique

注塑模具是用于塑胶制品快速成型的治具。注塑模具由动模和定模两部分组成,动模安装在注射成型机的移动模板上,定模安装在注射成型机的固定模板上。在注射成型时动模与定模闭合构成浇注系统和型腔,开模时动模和定模分离以便取出塑料制品。模具主要由浇注系统、调温系统、成型零件和结构零件组成。其中浇注系统和成型零件是与塑料直接接触部分,并随塑料和制品而变化,是塑模中最复杂,变化最大,要求加工光洁度和精度最高的部分。浇注系统是指塑料从射嘴进入型腔前的流道部分,包括主流道、冷料穴、分流道和浇口等。成型零件是指构成制品形状的各种零件,包括动模、定模和型腔、型芯、成型杆以及排气口等。Injection molds are fixtures used for rapid prototyping of plastic products. The injection mold consists of a moving mold and a fixed mold. The moving mold is installed on the movable template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form the gating system and the cavity, and the movable mold and the fixed mold are separated to take out the plastic product when the mold is opened. The mold is mainly composed of pouring system, temperature adjustment system, molding parts and structural parts. Among them, the pouring system and molding parts are the parts that are in direct contact with the plastic and change with the plastic and the product. They are the most complex and the most changing parts in the mold, requiring the highest processing finish and precision. The gating system refers to the part of the runner before the plastic enters the cavity from the nozzle, including the main runner, cold material cavity, runner and gate. Molded parts refer to various parts that make up the shape of the product, including moving molds, fixed molds and cavities, cores, molding rods, and exhaust ports.

塑件中螺纹部分的脱模是含有内、外螺纹的模具设计的关键。一般采用如下两类方法脱模:一类是在塑件及结构允许的情况下,采用强制脱模的方式进行脱模;另一类是不适合采用强制方式脱模的,如螺纹较深、塑件强度大、螺纹精度要求高的塑件,则必须采用旋转脱模方式进行脱模,现有的旋转脱模结构,在产品注塑完成后,产品与浇道口的分离较为麻烦,必须要在定模板中添加一个脱料结构,这样的做法会极大的增加模具的制造成本以及铸件的加工难度,所以需要设计一款新的方便脱模的注塑模具。The demoulding of the threaded part of the plastic part is the key to the design of the mold with internal and external threads. Generally, the following two methods are used for demoulding: one is to use forced demoulding when the plastic parts and structure allow it; the other is not suitable for forced demoulding, such as deep threads, Plastic parts with high strength and high thread precision requirements must be demoulded by rotary demoulding. With the existing rotary demoulding structure, after the product is injected, it is troublesome to separate the product from the sprue. Adding a stripping structure to the fixed template will greatly increase the manufacturing cost of the mold and the processing difficulty of the casting, so it is necessary to design a new injection mold that is easy to demould.

实用新型内容Utility model content

本实用新型所要解决的技术问题是针对现有技术的现状,而提供一种用于内螺纹脱模的注塑模具。The technical problem to be solved by the utility model is to provide an injection mold for demoulding of internal threads aiming at the current state of the prior art.

本实用新型解决上述技术问题所采用的技术方案为:提出一种用于内螺纹脱模的注塑模具,包括:定模板,其开设有进浇口以及若干个型腔,每个所述型腔均匀环绕于所述进浇口周缘处,所述进浇口下端设置有若干个浇口通道,每个所述浇口通道均为斜向设置且其端部位于对应的所述型腔侧端,每个浇口通道均与对应的型腔相通;The technical scheme adopted by the utility model to solve the above-mentioned technical problems is as follows: a kind of injection mold for internal thread demoulding is proposed, including: a fixed template, which is provided with a gate and a plurality of cavities, each of the cavities Uniformly surrounding the periphery of the gate, the lower end of the gate is provided with several gate channels, each gate channel is arranged obliquely and its end is located at the corresponding side end of the cavity , each gate channel communicates with the corresponding cavity;

动模板,其活动设置于所述定模板下端,所述动模板上端面上设置有若干个凸齿;A movable template, which is movably arranged at the lower end of the fixed template, and a plurality of protruding teeth are arranged on the upper end surface of the movable template;

成型脱料组件,其上端设置有若干个转动型柱,每个所述转动型柱均活动贯穿所述动模板且其上端伸入至对应的所述型腔内,每个转动型柱上端均设置有与产品相对应的螺纹;Forming stripper assembly, the upper end of which is provided with a number of rotating columns, each of which is movable through the movable template and whose upper end extends into the corresponding cavity, and the upper end of each rotating column is It is provided with threads corresponding to the product;

当所述转动型柱转动时能够使得产品脱离出转动型柱。When the rotating column is rotated, the product can be disengaged from the rotating column.

在上述的一种用于内螺纹脱模的注塑模具中,所述成型脱料组件包括:In the above-mentioned injection mold for internal thread demoulding, the molding stripping assembly includes:

移动板,其活动连接于所述动模板下端,每个所述转动型柱均活动插设于所述移动板上;a moving plate, which is movably connected to the lower end of the moving template, and each of the rotating columns is movably inserted on the moving plate;

转动主轴,其活动插设于所述移动板上,每个所述转动型柱下端均与所述转动主轴上端啮合连接;The rotating main shaft is movably inserted on the moving plate, and the lower end of each rotating column is meshed with the upper end of the rotating main shaft;

转动电机,其设置于所述移动板侧端且其下端与所述转动主轴连接。A rotating motor is arranged at the side end of the moving plate and its lower end is connected with the rotating main shaft.

在上述的一种用于内螺纹脱模的注塑模具中,所述定模板下端设置有若干个第一连接柱,每个所述第一连接柱上均套设有第一脱料弹簧,每个所述第一脱料弹簧下端均抵靠于所述动模板上端。In the above-mentioned injection mold for internal thread demoulding, the lower end of the fixed plate is provided with a plurality of first connecting columns, and each of the first connecting columns is sleeved with a first stripping spring. The lower ends of each of the first stripping springs are against the upper end of the movable template.

在上述的一种用于内螺纹脱模的注塑模具中,所述动模板上插设有若干个第二连接柱,每个所述第二连接柱上均套设有第二脱料弹簧,每个所述第二脱料弹簧下端均抵靠于所述移动板上端。In the above-mentioned injection mold for internal thread demoulding, several second connecting columns are inserted on the movable template, and each of the second connecting columns is sleeved with a second stripping spring, The lower end of each second stripping spring abuts against the upper end of the moving plate.

在上述的一种用于内螺纹脱模的注塑模具中,所述定模板下端设置有导套,所述移动板上设置有导柱,所述导柱上端贯穿所述动模板且活动插设于所述导套内。In the above-mentioned injection mold for internal thread demoulding, the lower end of the fixed template is provided with a guide sleeve, the movable plate is provided with a guide post, and the upper end of the guide post passes through the movable template and is movably inserted. in the guide sleeve.

与现有技术相比,本实用新型的优点在于该用于内螺纹脱模的注塑模具开模时能够自动带动产品与浇道口分离,减少定模板中的脱料结构,降低定模板的制造成本,减少产品的生产步骤以及生产难度。Compared with the prior art, the utility model has the advantage that the injection mold for internal thread demoulding can automatically drive the product to be separated from the sprue when the mold is opened, reducing the stripping structure in the fixed formwork and reducing the manufacturing cost of the fixed formwork , Reduce the production steps and production difficulty of the product.

附图说明Description of drawings

图1是本用于内螺纹脱模的注塑模具的主方向透视图;Fig. 1 is the perspective view of the main direction of the injection mold used for internal thread demoulding;

图2是本用于内螺纹脱模的注塑模具的侧方形透视图;Fig. 2 is a side square perspective view of the injection mold used for internal thread demoulding;

图3是定模板立体视图。Fig. 3 is a perspective view of the fixed template.

图4是动模板与成型脱料组件的连接关系图。Fig. 4 is a diagram of the connection relationship between the movable template and the forming stripper assembly.

图中,定模板1、进浇口2、型腔3、浇口通道4、动模板5、凸齿6、转动型柱7、移动板8、转动主轴9、转动电机10、第一连接柱11、第一脱料弹簧12、第二连接柱13、第二脱料弹簧14、导套15、导柱16、产品17。In the figure, the fixed template 1, the gate 2, the cavity 3, the gate channel 4, the movable template 5, the convex teeth 6, the rotating column 7, the moving plate 8, the rotating main shaft 9, the rotating motor 10, the first connecting column 11. The first stripping spring 12, the second connecting column 13, the second stripping spring 14, the guide sleeve 15, the guide column 16, and the product 17.

具体实施方式Detailed ways

以下是本实用新型的具体实施例并结合附图,对本实用新型的技术方案作进一步的描述,但本实用新型并不限于这些实施例。The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

如图1至图4所示,本用于内螺纹脱模的注塑模具,包括:定模板1,其开设有进浇口2以及若干个型腔3,每个型腔3均匀环绕于进浇口2周缘处,进浇口2下端设置有若干个浇口通道4,每个浇口通道4均为斜向设置且其端部位于对应的型腔3侧端,每个浇口通道4均与对应的型腔3相通;动模板5,其活动设置于定模板1下端,动模板5上端面上设置有若干个凸齿6;成型脱料组件,其上端设置有若干个转动型柱7,每个转动型柱7均活动贯穿动模板5且其上端伸入至对应的型腔3内,每个转动型柱7上端均设置有与产品17相对应的螺纹;当转动型柱7转动时能够使得产品17脱离出转动型柱7。As shown in Figures 1 to 4, the injection mold used for internal thread demoulding includes: a fixed template 1, which is provided with a gate 2 and several cavities 3, and each cavity 3 evenly surrounds the gate At the periphery of the gate 2, several gate channels 4 are arranged at the lower end of the gate 2, each gate channel 4 is arranged obliquely and its end is located at the side end of the corresponding cavity 3, each gate channel 4 is It communicates with the corresponding cavity 3; the movable platen 5 is movably arranged at the lower end of the fixed platen 1, and several protruding teeth 6 are arranged on the upper end surface of the movable platen 5; , each rotating column 7 is movable through the movable template 5 and its upper end extends into the corresponding cavity 3, and the upper end of each rotating column 7 is provided with a thread corresponding to the product 17; when the rotating column 7 rotates The product 17 can be disengaged from the rotating post 7 during this time.

注塑时,转动型柱7位于型腔3内,注塑原料从进浇口2进入,然后缓慢流入到浇口通道4内,浇口通道4端部为斜向向上设置,且浇口通道4端部位于型腔3侧端并于型腔3相通,进而注塑原料能够从型腔3侧面进入型腔3内,这样能够减少注塑原料落入型腔3内的速度,避免产品17内部产生气泡,提高产品17质量,当注塑完成且产品17成型后即可开始开模动作,即动模板5与定模板1分离,由于转动型柱7上端设置有与产品17相对应的螺纹,所以产品17成型后是与转动型柱7上端螺纹连接的,动模板5下降的过程中能够带动成型脱料组件向下移动,即能够带动产品17向下移动,因为浇铸道是与产品17的侧端面连在一起的,当产品17向下移动时,定模板1保持不动,即浇铸道的位置不动,产品17受到向下的力,即能够使得产品17与浇铸道断开,这种方式无需再在定模板1中加入切料结构,降低定模板1的制造成本,同时也能够减少产品17的生产步骤和生产难度,提高产量。During injection molding, the rotating column 7 is located in the cavity 3, and the injection molding raw material enters from the inlet gate 2, and then slowly flows into the gate channel 4. The end of the gate channel 4 is set obliquely upward, and the end of the gate channel 4 The part is located at the side end of the cavity 3 and communicates with the cavity 3, and then the injection molding raw material can enter the cavity 3 from the side of the cavity 3, which can reduce the speed of the injection molding raw material falling into the cavity 3, and avoid air bubbles inside the product 17. To improve the quality of the product 17, when the injection molding is completed and the product 17 is formed, the mold opening action can be started, that is, the movable template 5 is separated from the fixed template 1, and the upper end of the rotating column 7 is provided with a thread corresponding to the product 17, so the product 17 is formed Finally, it is threadedly connected with the upper end of the rotating type column 7. When the movable template 5 descends, it can drive the forming stripping assembly to move downward, that is, it can drive the product 17 to move downward, because the sprue is connected with the side end surface of the product 17. Together, when the product 17 moves downward, the fixed template 1 remains still, that is, the position of the sprue remains unchanged, and the product 17 is subjected to a downward force, that is, the product 17 can be disconnected from the sprue. The cutting structure is added to the fixed formwork 1 to reduce the manufacturing cost of the fixed formwork 1, and at the same time reduce the production steps and production difficulty of the product 17 and increase the output.

当动模板5向下移动并带动产品17移出型腔3时,成型脱料组件能够与动模板5分离,即能够带动转动型柱7向下移动,因为产品17与转动型柱7螺纹连接,所以转动型柱7能够带动产品17向下移动,当产品17向下移动至一定距离时,产品17下端能够抵靠于凸齿6上,当成型脱料组件带动转动型柱7转动时,凸齿6能够为产品17提供摩擦力,保证产品17不会对转动型柱7转动,进而能够使得转动型柱7与产品17脱离,完成脱模。When the movable template 5 moves downwards and drives the product 17 to move out of the cavity 3, the forming stripping assembly can be separated from the movable template 5, that is, it can drive the rotary column 7 to move downward, because the product 17 is screwed to the rotary column 7, Therefore, the rotating column 7 can drive the product 17 to move downwards. When the product 17 moves down to a certain distance, the lower end of the product 17 can lean against the convex tooth 6. The teeth 6 can provide frictional force for the product 17 to ensure that the product 17 will not rotate to the rotating column 7, and then the rotating column 7 can be separated from the product 17 to complete demoulding.

成型脱料组件包括:移动板8,其活动连接于动模板5下端,每个转动型柱7均活动插设于移动板8上;转动主轴9,其活动插设于移动板8上,每个转动型柱7下端均与转动主轴9上端啮合连接;转动电机10,其设置于移动板8侧端且其下端与转动主轴9连接。The forming and stripping assembly includes: a moving plate 8, which is movably connected to the lower end of the moving template 5, and each rotating column 7 is movably inserted on the moving plate 8; a rotating main shaft 9, which is movably inserted on the moving plate 8, and each The lower ends of each rotating post 7 are meshed and connected with the upper end of the rotating main shaft 9;

移动板8能够相对于动模板5上下移动,转动轴主轴下端与转动电机10连接,转动电机10能够带动转动主轴9转动,因为转动型柱7与转动主轴9啮合连接,所以转动电机10工作时能够带动转动型柱7转动,当转动型柱7移动时,移动板8逐渐远离动模板5,这样就能够给与产品17一个向下的力,使得产品17下端紧紧抵靠于凸齿6上,既而能够使得转动型柱7与产品17分离,实现脱模目的。The moving plate 8 can move up and down relative to the movable template 5, the lower end of the main shaft of the rotating shaft is connected with the rotating motor 10, and the rotating motor 10 can drive the rotating main shaft 9 to rotate, because the rotating post 7 is engaged with the rotating main shaft 9, so when the rotating motor 10 works It can drive the rotating column 7 to rotate. When the rotating column 7 moves, the moving plate 8 gradually moves away from the movable template 5, so that a downward force can be given to the product 17, so that the lower end of the product 17 is tightly against the convex tooth 6 Therefore, the rotary column 7 can be separated from the product 17 to realize the demoulding purpose.

定模板1下端设置有若干个第一连接柱11,每个第一连接柱11上均套设有第一脱料弹簧12,每个第一脱料弹簧12下端均抵靠于动模板5上端。The lower end of the fixed template 1 is provided with a plurality of first connecting columns 11, and each first connecting column 11 is provided with a first stripping spring 12, and the lower end of each first stripping spring 12 is against the upper end of the movable template 5 .

开模时,定模板1与动模板5不再锁死,第一脱料弹簧12能够带动动模板5与定模板1自动分离,进而能够实现产品17与浇口通道4分离,利用第一脱料弹簧12的弹力带动动模板5与定模板1分离,减少动模板5的驱动结构,降低模具制造成本。When the mold is opened, the fixed template 1 and the movable template 5 are no longer locked, and the first stripping spring 12 can drive the movable template 5 to be separated from the fixed template 1 automatically, thereby realizing the separation of the product 17 from the gate channel 4. The elastic force of the material spring 12 drives the movable template 5 to separate from the fixed template 1, thereby reducing the driving structure of the movable template 5 and reducing the mold manufacturing cost.

动模板5上插设有若干个第二连接柱13,每个第二连接柱13上均套设有第二脱料弹簧14,每个第二脱料弹簧14下端均抵靠于移动板8上端。A plurality of second connecting columns 13 are inserted on the movable template 5, and each second connecting column 13 is provided with a second stripping spring 14, and the lower end of each second stripping spring 14 is against the moving plate 8 upper end.

第二脱料弹簧14能够带动移动板8与动模板5分离,因为转动型柱7设置于移动板8上,多疑当移动板8与动模板5分离时能够带动转动型柱7相对于动模板5逐渐向下移动,这样就能够使得产品17下端抵靠于凸齿6上。The second stripping spring 14 can drive the movable plate 8 to separate from the movable template 5, because the rotary column 7 is arranged on the movable plate 8, when the movable plate 8 is separated from the movable template 5, it can drive the rotary column 7 relative to the movable template 5 moves downwards gradually, so that the lower end of the product 17 can be leaned against the protruding teeth 6 .

定模板1下端设置有导套15,移动板8上设置有导柱16,导柱16上端贯穿动模板5且活动插设于导套15内。The lower end of the fixed template 1 is provided with a guide sleeve 15 , and the movable plate 8 is provided with a guide post 16 . The upper end of the guide post 16 runs through the movable template 5 and is movably inserted in the guide sleeve 15 .

本文中所描述的具体实施例仅仅是对本实用新型精神作举例说明。本实用新型所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代,但并不会偏离本实用新型的精神所定义的范围。The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the scope defined by the spirit of the utility model.

Claims (5)

1.一种用于内螺纹脱模的注塑模具,其特征在于,包括:1. An injection mold for internal thread demoulding, characterized in that, comprising: 定模板,其开设有进浇口以及若干个型腔,每个所述型腔均匀环绕于所述进浇口周缘处,所述进浇口下端设置有若干个浇口通道,每个所述浇口通道均为斜向设置且其端部位于对应的所述型腔侧端,每个浇口通道均与对应的型腔相通;A fixed formwork, which is provided with a gate and several cavities, each of which is evenly surrounded by the periphery of the gate, and a plurality of gate channels are provided at the lower end of the gate, and each of the cavities The gate channels are arranged obliquely and their ends are located at the corresponding side ends of the cavity, and each gate channel communicates with the corresponding cavity; 动模板,其活动设置于所述定模板下端,所述动模板上端面上设置有若干个凸齿;A movable template, which is movably arranged at the lower end of the fixed template, and a plurality of protruding teeth are arranged on the upper end surface of the movable template; 成型脱料组件,其上端设置有若干个转动型柱,每个所述转动型柱均活动贯穿所述动模板且其上端伸入至对应的所述型腔内,每个转动型柱上端均设置有与产品相对应的螺纹;Forming stripper assembly, the upper end of which is provided with a number of rotating columns, each of which is movable through the movable template and whose upper end extends into the corresponding cavity, and the upper end of each rotating column is It is provided with threads corresponding to the product; 当所述转动型柱转动时能够使得产品脱离出转动型柱。When the rotating column is rotated, the product can be disengaged from the rotating column. 2.根据权利要求1所述的一种用于内螺纹脱模的注塑模具,其特征在于,所述成型脱料组件包括:2. A kind of injection mold for internal thread stripping according to claim 1, characterized in that, the molding stripping assembly comprises: 移动板,其活动连接于所述动模板下端,每个所述转动型柱均活动插设于所述移动板上;a moving plate, which is movably connected to the lower end of the moving template, and each of the rotating columns is movably inserted on the moving plate; 转动主轴,其活动插设于所述移动板上,每个所述转动型柱下端均与所述转动主轴上端啮合连接;The rotating main shaft is movably inserted on the moving plate, and the lower end of each rotating column is meshed with the upper end of the rotating main shaft; 转动电机,其设置于所述移动板侧端且其下端与所述转动主轴连接。A rotating motor is arranged at the side end of the moving plate and its lower end is connected with the rotating main shaft. 3.根据权利要求2所述的一种用于内螺纹脱模的注塑模具,其特征在于,所述定模板下端设置有若干个第一连接柱,每个所述第一连接柱上均套设有第一脱料弹簧,每个所述第一脱料弹簧下端均抵靠于所述动模板上端。3. A kind of injection mold for internal thread demoulding according to claim 2, characterized in that, the lower end of the fixed plate is provided with several first connecting columns, and each of the first connecting columns is covered with A first stripping spring is provided, and the lower end of each first stripping spring abuts against the upper end of the movable template. 4.根据权利要求3所述的一种用于内螺纹脱模的注塑模具,其特征在于,所述动模板上插设有若干个第二连接柱,每个所述第二连接柱上均套设有第二脱料弹簧,每个所述第二脱料弹簧下端均抵靠于所述移动板上端。4. A kind of injection mold for internal thread demoulding according to claim 3, characterized in that, a plurality of second connecting columns are inserted on the movable template, each of the second connecting columns has a Second stripping springs are sheathed, and the lower end of each second stripping spring abuts against the upper end of the moving plate. 5.根据权利要求4所述的一种用于内螺纹脱模的注塑模具,其特征在于,所述定模板下端设置有导套,所述移动板上设置有导柱,所述导柱上端贯穿所述动模板且活动插设于所述导套内。5. A kind of injection mold for internal thread demoulding according to claim 4, characterized in that, the lower end of the fixed template is provided with a guide sleeve, the moving plate is provided with a guide post, and the upper end of the guide post is It runs through the movable template and is movably inserted in the guide sleeve.
CN201920212129.7U 2019-02-18 2019-02-18 An injection mold for demoulding of internal thread Expired - Fee Related CN209666179U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109760278A (en) * 2019-02-18 2019-05-17 宁波职业技术学院 An injection mold for internal thread demolding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109760278A (en) * 2019-02-18 2019-05-17 宁波职业技术学院 An injection mold for internal thread demolding

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