WO2015192514A1 - 一种模具的合模导向机构 - Google Patents

一种模具的合模导向机构 Download PDF

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Publication number
WO2015192514A1
WO2015192514A1 PCT/CN2014/087038 CN2014087038W WO2015192514A1 WO 2015192514 A1 WO2015192514 A1 WO 2015192514A1 CN 2014087038 W CN2014087038 W CN 2014087038W WO 2015192514 A1 WO2015192514 A1 WO 2015192514A1
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Prior art keywords
positioning
sleeve
guide
mold
disposed
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PCT/CN2014/087038
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English (en)
French (fr)
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黄欣
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黄欣
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Publication of WO2015192514A1 publication Critical patent/WO2015192514A1/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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/20—Opening, closing or clamping
    • 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
    • B29C45/64—Mould opening, closing or clamping devices

Definitions

  • the utility model relates to a mold structure, in particular to a mold clamping guiding mechanism of a mold.
  • a mold clamping mechanism is required between the fixed mold and the movable mold to ensure that the movable mold and the fixed mold can be accurately clamped during operation.
  • the background art of the invention patent application with the publication number CN103317623A describes a structure of a mold clamping guide mechanism on a mold for manufacturing an optical disc, and the mold clamping guide mechanism is mainly composed of a guide sleeve, a ball sleeve, a guide post and a compression spring.
  • the ball sleeve in the process of rapid mold opening, the ball sleeve is likely to follow the guide post along the direction away from the fixed mold, and when the guide post is stopped, the ball sleeve is The action of inertia continues to move along the guide post toward the movable mold, thereby exposing from the guide sleeve, and therefore, the ball on the ball sleeve has a safety hazard that falls.
  • the invention patent application with the publication number of CN103317623A provides a "guide mechanism for positioning the optical disc mold", which is fixedly sleeved on the guide post by being fixed inside the ball sleeve.
  • the wear ring is connected to the wear ring and the guide post, so that the ball sleeve and the guide post are fixedly integrated, and the ball sleeve moves along with the guide column and stops during operation, and no ball exists.
  • the problem of the sleeve being exposed from the guide sleeve improves the safety performance.
  • the technical solution still has the following disadvantages: 1.
  • the wear ring needs to be fixed to the ball sleeve, the assembly is difficult, and because of the interference fit between the guide post and the wear ring, it is also inconvenient to assemble; Wear ring and There is an interference fit between the guide columns, so the two can no longer rotate relative to each other after assembly.
  • the contact points between the balls on the ball sleeve and the inner wall of the guide sleeve are fixed. After a long time of work, the inner wall of the guide sleeve will be partially worn. , which in turn affects the accuracy of the orientation.
  • the purpose of the utility model is to overcome the deficiencies of the prior art, and provide a mold clamping guiding mechanism, which not only does not have the problem of falling balls, but also has a convenient installation between the ball sleeve and the guiding column, and the ball is arranged.
  • the sleeve and the guide post can also change the positional relationship in the circumferential direction to overcome the local wear problem of the guide sleeve.
  • a mold clamping guide mechanism includes a guide sleeve fixed on a fixed mold and a guide post fixed on the movable mold, the guide post extending into the guide sleeve, and the guide post is inserted into the end of the guide sleeve
  • the sleeve is provided with a ball sleeve;
  • the connection structure between the guide post and the ball sleeve is: a positioning step is arranged on the outer wall of the guide post, and a limit block is arranged at the end of the guide post, and the ball sleeve is clamped Between the positioning step and the limiting block, the limiting block and the guiding post are fixedly connected by screws;
  • a circumferential positioning structure is disposed between the positioning step surface and the end surface of the ball sleeve, and the circumferential positioning structure is formed by combining a positioning block and a positioning groove distributed along a circumferential direction, wherein: the positioning block is disposed on the surface of the positioning step The positioning groove is disposed on the end surface of the ball sleeve, or the positioning block is disposed on the end surface of the ball sleeve, and the positioning groove is disposed on the surface of the positioning step.
  • a preferred embodiment of the mold clamping mechanism of the mold of the present invention wherein the positioning block is disposed on the surface of the positioning step, and the positioning groove is disposed on the end surface of the ball sleeve,
  • the positioning block is two, the positioning slot is a plurality, and two of the plurality of positioning slots form a group, and two positioning slots in each group cooperate with the two positioning blocks.
  • the limiting block has a T-shaped cross section, including a horizontal portion and a vertical portion, and the end of the guiding column is provided for receiving the limiting block a mounting slot of the vertical portion, the screw is connected to the guide post through a vertical portion of the limiting block, and a spacer is disposed between the head of the screw and the vertical portion of the limiting block; the limiting block The lower surface of the vertical portion is pressed against the end face of the ball sleeve.
  • the ball sleeve is clamped and fixed on the guide post by positioning the step and the limit block, and the ball sleeve moves and stops with the guide column during the working process, and the ball does not fall; and
  • the assembly between the column and the ball sleeve is convenient. Simply put the ball into the end of the guide post and lock the limit block with screws.
  • the guide post and the guide sleeve have a plurality of matching positions in the circumferential direction, so that it can be changed after using for a period of time.
  • the position of the guide post and the guide sleeve in the circumferential direction prevents the ball from contacting the fixed portion of the inner wall of the guide sleeve, overcomes the local wear problem of the guide sleeve, and improves the service life of the guide sleeve and the accuracy of the positioning guide.
  • FIG. 1 is a schematic structural view of a specific embodiment of a mold clamping guide mechanism of a mold of the present invention.
  • Fig. 2 is an enlarged view of I of Fig. 1.
  • Figure 3 is a cross-sectional view of the guide post of Figure 1.
  • Figure 4 is an end view of the ball sleeve of Figure 1.
  • the mold clamping guide mechanism of the mold of the present invention comprises a guide sleeve 1 fixed on a fixed mold and a guide post 2 fixed on the movable mold, wherein the guide post 2 extends into the guide sleeve In the inner portion 1, the guide post 2 is sleeved with a ball sleeve 3 at the end projecting into the guide sleeve 1, and the balls of the ball sleeve 3 can roll on the inner surface of the guide sleeve 1.
  • the connecting structure between the guide post 2 and the ball bearing sleeve 3 is: the outer wall of the guide post 2 is provided with a circular positioning step 2-1, and the end of the guiding post 2 is provided with a limiting block 4, The ball bearing sleeve 3 is clamped between the positioning step 2-1 and the limiting block 4, and the two end faces of the ball bearing sleeve 3 are respectively in contact with the positioning step 2-1 and the limiting block 4, and the limiting block 4 is
  • the guide posts 2 are fixedly connected by screws 5, so that the limit blocks 4 exert a clamping force on the ball sleeves 3.
  • the limiting block 4 has a T-shaped cross section, including a horizontal portion and a vertical portion, and the end of the guiding post 2 is provided with a mounting groove for accommodating a vertical portion of the limiting block 4,
  • the screw 5 is connected to the guide post 2 through the vertical portion of the limiting block 4, and the spacer 6 is disposed between the head of the screw 5 and the vertical portion of the limiting block 4; the vertical of the limiting block 4 A portion of the lower surface is pressed against the end face of the ball sleeve 3.
  • a circumferential positioning structure is provided between the surface of the positioning step 2-1 and the end surface of the ball sleeve 3.
  • the circumferential positioning structure is composed of a positioning block 2-2 and a positioning groove 3 distributed along the circumferential direction.
  • the positioning block 2-2 is disposed on the surface of the positioning step 2-1, and the positioning groove 3-1 is disposed on the end surface of the ball sleeve 3, wherein the positioning block 2-2 is two
  • the positioning slots 3-1 are multiple, and two of the plurality of positioning slots 3-1 form a group, and two positioning slots 3-1 in each group cooperate with the two positioning blocks 2-2.
  • the positioning block 2-2 may be disposed on the end surface of the ball sleeve 3, and the positioning groove 3-1 is disposed on the surface of the positioning step 2-1.
  • the ball sleeve 3 is clamped and fixed on the guide post 2 by the positioning step 2-1 and the limiting block 4, and the ball sleeve 3 moves and stops with the guide post 2 during the working process. , the phenomenon that the ball is not dropped; and the assembly between the guide post 2 and the ball sleeve 3 is convenient, only the ball sleeve 3 is loaded into the end of the guide post 2, and the limit block 4 is locked by the screw 5. Just fine.
  • the guide post 2 and the guide sleeve 1 have a plurality of matching positions in the circumferential direction, so that they can be used. After a period of time, the position of the joint between the guide post 2 and the guide sleeve 1 in the circumferential direction is changed, thereby avoiding the contact between the ball and the fixed portion of the inner wall of the guide sleeve 1, thereby overcoming the local wear problem of the guide sleeve 1, and improving the guide sleeve 1 The service life and the accuracy of the positioning guide.

Abstract

本实用新型公开了一种模具的合模导向机构，包括固定在定模上的导套和固定在动模上的导柱，所述导柱伸入到导套内，导柱在伸入到导套内的端部套设有滚珠套；所述导柱与滚珠套之间的连接结构为：所述导柱的外壁上设有定位台阶，该导柱的末端设有限位块，所述滚珠套被夹持在所述定位台阶与限位块之间，所述限位块与导柱之间通过螺钉固定连接；所述定位台阶表面和滚珠套端面之间设有周向定位结构，该周向定位结构由沿着圆周方向分布的定位块和定位槽组合而成。本实用新型的合模导向机构不但不会出现滚珠掉落的问题，而且滚珠套与导柱之间安装方便，滚珠套与导柱还可以沿周向变换位置关系，克服导套局部磨损问题。

Description

一种模具的合模导向机构 技术领域
本实用新型涉及一种模具结构，具体涉及一种模具的合模导向机构。
背景技术
在注塑模具中，定模和动模之间需要设置合模导向机构，以确保工作时动模与定模能够准确合模。申请公布号为CN103317623A的发明专利申请的背景技术中介绍了一种制作光盘的模具上的合模导向机构的结构，该合模导向机构主要由导套、滚珠套、导柱以及压簧构成，正如上述专利申请的背景技术所描述的那样，上述合模导向机构在快速开模的过程中，滚珠套很可能跟随导柱一起沿着背离定模的方向移动，当导柱停止，滚珠套由于惯性的作用，继续沿着导柱朝着动模处移动，从而从导套内露出来，因此，滚珠套上的滚珠存在着掉下来的安全隐患。
为解决上述技术问题，申请公布号为CN103317623A的发明专利申请提供了一种“用于光盘模具定位的导向机构”，该导向机构通过在滚珠套的内部固定设置套接在所述导柱上的耐磨环，并让耐磨环与所述导柱之间过盈配合连接，这样滚珠套与导柱相当于固定成一体，工作过程中滚珠套随导柱一起运动并停止，不会存在滚珠套从导套内露出来的问题，提高了安全性能。但是该技术方案仍然存在以下的不足：1、需要将耐磨环固定到滚珠套上，装配困难，并且，由于导柱与耐磨环之间为过盈配合，同样不便于装配；2、由于耐磨环与 导柱之间为过盈配合，因此装配后两者不能再相对转动，工作过程中滚珠套上的滚珠与导套内壁的接触部位固定不变，长时间工作后，会造成导套内壁局部磨损，进而影响导向的准确性。
实用新型内容
本实用新型的目的在于克服现有技术的不足，提供一种模具的合模导向机构，该合模导向机构不但不会出现滚珠掉落的问题，而且滚珠套与导柱之间安装方便，滚珠套与导柱还可以沿周向变换位置关系，克服导套局部磨损问题。
本实用新型解决上述技术问题的技术方案是：
一种模具的合模导向机构，包括固定在定模上的导套和固定在动模上的导柱，所述导柱伸入到导套内，导柱在伸入到导套内的端部套设有滚珠套；所述导柱与滚珠套之间的连接结构为：所述导柱的外壁上设有定位台阶，该导柱的末端设有限位块，所述滚珠套被夹持在所述定位台阶与限位块之间，所述限位块与导柱之间通过螺钉固定连接；
所述定位台阶表面和滚珠套端面之间设有周向定位结构，该周向定位结构由沿着圆周方向分布的定位块和定位槽组合而成，其中：所述定位块设置在定位台阶表面上、所述定位槽设置在滚珠套端面上，或者所述定位块设置在滚珠套端面上、所述定位槽设置在定位台阶表面上。
本实用新型的模具的合模导向机构的一个优选方案，其中，所述定位块设置在定位台阶表面上，所述定位槽设置在滚珠套端面上，其 中，所述定位块为两个，所述定位槽为多个，多个定位槽中两两构成一组，每组中的两个定位槽与所述两个定位块相配合。通过设置多个定位槽，可以让导柱与导套之间在圆周方向上具有多个配合位置；通过设置两个定位块，可以在确保定位可靠的基础上尽可能简化结构，以便于加工。
本实用新型的模具的合模导向机构的一个优选方案，其中，所述限位块的横截面呈T形，包括水平部分和竖直部分，所述导柱的末端设有用于容纳限位块的竖直部分的安装槽，所述螺钉穿越限位块的竖直部分与导柱连接，所述螺钉的头部与限位块的竖直部分之间设有垫片；所述限位块的竖直部分的下表面压紧在滚珠套的端面上。
本实用新型的模具的合模导向机构与现有技术相比具有以下有益效果：
1、本实用新型中，通过定位台阶和限位块将滚珠套夹紧固定在导柱上，工作过程中滚珠套随导柱一起运动和停止，不会出现滚珠掉落的现象；并且，导柱和滚珠套之间的装配方便，只需将滚珠套装入导柱端部，并通过螺钉将限位块锁紧即可。
2、由于在所述定位台阶表面和滚珠套端面之间设有周向定位结构，使得导柱与导套之间在圆周方向上具有多个配合位置，因此可以在使用一段时间后，改变一下导柱与导套之间在圆周方向上的配合位置，从而避免滚珠与导套内壁的固定部位接触，克服了导套局部磨损问题，提高了导套的使用寿命和定位导向的精确度。
附图说明
图1为本实用新型的模具的合模导向机构的一个具体实施方式的结构示意图。
图2为图1的I处放大图。
图3为图1中导柱的截面图。
图4为图1中滚珠套的端面图。
具体实施方式
下面结合实施例及附图对本实用新型作进一步详细的描述，但本实用新型的实施方式不限于此。
参见图1～图4，本实用新型的模具的合模导向机构包括固定在定模上的导套1和固定在动模上的导柱2，其中，所述导柱2伸入到导套1内，导柱2在伸入到导套1内的端部套设有滚珠套3，该滚珠套3的滚珠可以在导套1的内表面上滚动。所述导柱2与滚珠套3之间的连接结构为：所述导柱2的外壁上设有圆环形的定位台阶2-1，该导柱2的末端设有限位块4，所述滚珠套3被夹持在所述定位台阶2-1与限位块4之间，滚珠套3的两个端面分别与定位台阶2-1和限位块4接触，所述限位块4与导柱2之间通过螺钉5固定连接，使得限位块4对滚珠套3产生夹持力。
参见图1，所述限位块4的横截面呈T形，包括水平部分和竖直部分，所述导柱2的末端设有用于容纳限位块4的竖直部分的安装槽，所述螺钉5穿越限位块4的竖直部分与导柱2连接，所述螺钉5的头部与限位块4的竖直部分之间设有垫片6；所述限位块4的竖直部分的下表面压紧在滚珠套3的端面上。
参见图1～图4，所述定位台阶2-1表面和滚珠套3端面之间设有周向定位结构，该周向定位结构由沿着圆周方向分布的定位块2-2和定位槽3-1组合而成，所述定位块2-2设置在定位台阶2-1表面上，所述定位槽3-1设置在滚珠套3端面上，其中，所述定位块2-2为两个，所述定位槽3-1为多个，多个定位槽3-1中两两构成一组，每组中的两个定位槽3-1与所述两个定位块2-2相配合。通过设置多个定位槽3-1，可以让导柱2与导套1之间在圆周方向上具有多个配合位置；通过设置两个定位块2-2，可以在确保定位可靠的基础上尽可能简化结构，以便于加工。此外，也可以将所述定位块2-2设置在滚珠套3端面上，将所述定位槽3-1设置在定位台阶2-1表面上。
参见图1～图4，本实用新型中，通过定位台阶2-1和限位块4将滚珠套3夹紧固定在导柱2上，工作过程中滚珠套3随导柱2一起运动和停止，不会出现滚珠掉落的现象；并且，导柱2和滚珠套3之间的装配方便，只需将滚珠套3装入导柱2端部，并通过螺钉5将限位块4锁紧即可。并且，由于在所述定位台阶2-1表面和滚珠套3端面之间设有周向定位结构，使得导柱2与导套1之间在圆周方向上具有多个配合位置，因此可以在使用一段时间后，改变一下导柱2与导套1之间在圆周方向上的配合位置，从而避免滚珠与导套1内壁的固定部位接触，克服了导套1局部磨损问题，提高了导套1的使用寿命和定位导向的精确度。
上述为本实用新型较佳的实施方式，但本实用新型的实施方式并不受上述内容的限制，其他的任何未背离本实用新型的精神实质与原理下 所作的改变、修饰、替代、组合、简化，均应为等效的置换方式，都包含在本实用新型的保护范围之内。

Claims (3)

  1. 一种模具的合模导向机构，包括固定在定模上的导套和固定在动模上的导柱，所述导柱伸入到导套内，导柱在伸入到导套内的端部套设有滚珠套；其特征在于，所述导柱与滚珠套之间的连接结构为：所述导柱的外壁上设有定位台阶，该导柱的末端设有限位块，所述滚珠套被夹持在所述定位台阶与限位块之间，所述限位块与导柱之间通过螺钉固定连接；
    所述定位台阶表面和滚珠套端面之间设有周向定位结构，该周向定位结构由沿着圆周方向分布的定位块和定位槽组合而成，其中：所述定位块设置在定位台阶表面上、所述定位槽设置在滚珠套端面上，或者所述定位块设置在滚珠套端面上、所述定位槽设置在定位台阶表面上。
  2. 根据权利要求1所述的模具的合模导向机构，其特征在于，所述定位块设置在定位台阶表面上，所述定位槽设置在滚珠套端面上，其中，所述定位块为两个，所述定位槽为多个，多个定位槽中两两构成一组，每组中的两个定位槽与所述两个定位块相配合。
  3. 根据权利要求1或2所述的模具的合模导向机构，其特征在于，所述限位块的横截面呈T形，包括水平部分和竖直部分，所述导柱的末端设有用于容纳限位块的竖直部分的安装槽，所述螺钉穿越限位块的竖直部分与导柱连接，所述螺钉的头部与限位块的竖直部分之间设有垫片；所述限位块的竖直部分的下表面压紧在滚珠套的端面上。
PCT/CN2014/087038 2014-06-20 2014-09-22 一种模具的合模导向机构 WO2015192514A1 (zh)

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Cited By (7)

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CN109794551A (zh) * 2017-11-17 2019-05-24 上海新安汽车隔音毡有限公司 一种用于模具的导向限位装置
CN110091475A (zh) * 2019-05-05 2019-08-06 广东科龙模具有限公司 一种模具内圆柱扣位二次强脱结构
CN114472814A (zh) * 2022-01-21 2022-05-13 东风汽车股份有限公司 提高模具自动配合精度的浮动套及其与顶芯板的安装结构
CN115837431A (zh) * 2022-11-28 2023-03-24 南通超达装备股份有限公司 一种浮动模快速换模机构

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CN107052856A (zh) * 2017-01-24 2017-08-18 福建富兰光学有限公司 树脂光学球罩法兰边加工一次装夹成型的夹具及加工方法
CN107052856B (zh) * 2017-01-24 2023-06-23 福建富兰光学股份有限公司 树脂光学球罩法兰边加工一次装夹成型的夹具及加工方法
CN107763041A (zh) * 2017-11-07 2018-03-06 苏州金牛精密机械有限公司 一种便于拔取的定位导柱
CN109794551A (zh) * 2017-11-17 2019-05-24 上海新安汽车隔音毡有限公司 一种用于模具的导向限位装置
CN109318451A (zh) * 2018-12-06 2019-02-12 上海威可特汽车热交换器制造有限公司 一种生产多种型号的汽车散热器水室模具结构
CN109318451B (zh) * 2018-12-06 2024-03-01 上海威可特汽车热交换器制造有限公司 一种生产多种型号的汽车散热器水室模具结构
CN110091475A (zh) * 2019-05-05 2019-08-06 广东科龙模具有限公司 一种模具内圆柱扣位二次强脱结构
CN114472814A (zh) * 2022-01-21 2022-05-13 东风汽车股份有限公司 提高模具自动配合精度的浮动套及其与顶芯板的安装结构
CN114472814B (zh) * 2022-01-21 2024-01-05 东风汽车股份有限公司 提高模具自动配合精度的浮动套及其与顶芯板的安装结构
CN115837431A (zh) * 2022-11-28 2023-03-24 南通超达装备股份有限公司 一种浮动模快速换模机构

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