WO2022126925A1 - 一种应用于轻量化阀体成型的双向抽芯机构 - Google Patents

一种应用于轻量化阀体成型的双向抽芯机构 Download PDF

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Publication number
WO2022126925A1
WO2022126925A1 PCT/CN2021/084012 CN2021084012W WO2022126925A1 WO 2022126925 A1 WO2022126925 A1 WO 2022126925A1 CN 2021084012 W CN2021084012 W CN 2021084012W WO 2022126925 A1 WO2022126925 A1 WO 2022126925A1
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WO
WIPO (PCT)
Prior art keywords
core
pulling
connecting frame
mounting portion
core pulling
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PCT/CN2021/084012
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English (en)
French (fr)
Inventor
马广兴
刘桂平
奚道伟
焦亚林
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苏州广型模具有限公司
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Application filed by 苏州广型模具有限公司 filed Critical 苏州广型模具有限公司
Publication of WO2022126925A1 publication Critical patent/WO2022126925A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/22Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2236Equipment for loosening or ejecting castings from dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/22Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies

Definitions

  • the invention belongs to the field of die casting, and in particular relates to a bidirectional core-pulling mechanism applied to the molding of a lightweight valve body.
  • the core-pulling mechanism in the existing die-casting mold has at least the following problems:
  • the core pulling mechanism in the mold is used to form the hole pattern on the workpiece, and the formed workpiece is tightly wrapped on the core pulling.
  • the valve body of the multi-directional valve on the automobile is arranged with a plurality of holes on the upper surface.
  • the external shape of the valve body is complex, and the shape of the valve body can be formed by inserts.
  • the insert can also be used as a limiting part
  • the core-pulling mechanism is correspondingly arranged in the insert, and the workpiece is deformed when the insert is used to limit the pulling of the core, and there are oblique holes on the outer side wall of the valve body.
  • oblique core-pulling needs to be set, and the direction of core-pulling is different from that of other core-pulling parts, and additional inserts are required to correspond to the oblique core-pulling to avoid deformation during the core-pulling process; and in the process of using inserts to form , the drive module is required to drive the insert.
  • the number of inserts increases, the number of drive modules also increases. More importantly, in order to offset the tightening force when pulling the core, the core-pulling workpiece is pressed on the insert, and the insert The increase in the number reduces the contact area of a single insert with the workpiece, thereby increasing the pressure on the insert, thereby reducing the service life of the insert.
  • the main purpose of the present invention is to provide a two-way core-pulling mechanism applied to the molding of lightweight valve bodies. On the connecting frame, the number of inserts is reduced.
  • a bidirectional core-pulling mechanism for lightweight valve body molding including:
  • the first core-pulling is driven by an external driving mechanism, so that the forming part on the first core-pulling moves along the first core-pulling direction on its axis, and the second driving module drives the second core-pulling
  • the core pulling moves along the axis on the first core pulling in a second core pulling direction, and the second core pulling direction is inclined relative to the first core pulling direction, so that the two core pulling can form holes at different angles.
  • connection frame extends upward to form a stepped connection frame body; wherein, the raised portion is used to form a mounting block for receiving the first core pulling and the second driving module.
  • the first mounting portion in the mounting block is disposed at one side edge of the connecting frame, and the first mounting portion is used for mounting the first core pull.
  • the mounting block further includes a second mounting portion for receiving the second driving module, the second mounting portion extending from the first mounting portion along the second core pulling direction;
  • the first mounting portion and the second mounting portion are integrally combined to form an integral structure of the mounting block.
  • the mounting block is provided with a guide hole penetrating the mounting block along the second core pulling direction, and the guide hole is located in the second mounting portion.
  • the second drive module is installed on the end of the second installation part away from the first installation part, the second core pulling is arranged in the guide hole, and the second drive module Driven by the group, the second core pulling is made to protrude from the guide hole.
  • a groove is provided on the mounting block, and the groove corresponds to the guide hole;
  • the second core-pulling jacket is provided with a sleeve
  • the second driving module drives the second core-pulling to slide relative to the sleeve
  • the outer wall of the sleeve at the groove position is provided with a limiting groove, so A fixing block is installed in the groove, and the fixing block is inserted into the limiting groove to limit the position of the sleeve.
  • it also includes a fixing bracket and a first driving module installed on the fixing bracket, and the first driving module is used to drive the connecting frame to move along the first core-pulling direction;
  • the first drive module is mounted on the fixing bracket, and the fixing bracket is fixed on the base surface;
  • a limiting assembly is fixedly arranged relative to the fixing bracket, and the limiting assembly includes a side plate and a base, and the side plate and the base form a accommodating cavity for receiving the connecting frame, and the connecting frame is located in the first place.
  • a driving module moves along the direction defined by the limiting component under the driving of a driving module.
  • the side wall of the connecting frame protrudes outward to form a blocking portion, and the side plate corresponding to one side of the blocking portion is provided with an opening for the blocking portion to slide.
  • the position port limits the moving distance of the connecting frame.
  • a joint is installed on the power output end of the first drive module, and a bayonet is opened on one end of the connecting frame close to the first drive module, and the joint extends into the bayonet , so that the first driving module and the connecting frame form a fixed connection structure.
  • the invention provides a bidirectional core-pulling mechanism applied to the molding of a lightweight valve body, comprising two core-pulling, the axis directions of the two core-pullings are relatively inclined, and holes of different angles are respectively formed by the two core-pulling, and at the same time, the two core-pulling On the connecting frame of the same insert, the quantity of the insert is reduced, the strength of the insert is guaranteed and the manufacturing cost is saved, and the invention has a simple structure and is convenient to use.
  • Fig. 1 is the three-dimensional structure schematic diagram in a preferred embodiment of the present invention
  • Fig. 2 is the partial enlarged schematic diagram of Fig. 1;
  • Fig. 3 is the exploded schematic diagram in a preferred embodiment of the present invention.
  • Figure 4 is a top view of the present invention in a preferred embodiment
  • Fig. 5 is the left side view in a preferred embodiment of the present invention.
  • FIG. 6 is a partial structural schematic diagram of a connecting frame in a preferred embodiment of the present invention.
  • the first drive module 211, the connector;
  • a bidirectional core-pulling mechanism applied to the molding of a lightweight valve body includes:
  • the first core-pulling 23 is driven by an external driving mechanism, so that the forming part on the first core-pulling 23 moves along the first core-pulling direction 231 on its axis, and the second driving module 25 drives The second core pulling 24 moves along the second core pulling direction 241 of the axis on the first core pulling 23, and the second core pulling direction 241 is inclined relative to the first core pulling direction 231, so that the two core pulling Forming holes at different angles.
  • the angle ⁇ of the inclination between the second core pulling direction 241 and the first core pulling direction 231 ranges from 15° to 45°.
  • the driving component of the first core pulling 23 will Interference easily occurs between the second driving modules 25 of the second core pulling 24, and when the ⁇ angle is small enough, the same driving assembly can be used to pull the two core pulling; and when the ⁇ angle is large enough,
  • a core-pulling mechanism is provided on the four sides of the mold, and when the ⁇ angle is greater than 45°, the inclination angle between the second core-pulling mechanism 24 and another adjacent core-pulling mechanism is less than 45°. , at this time, the second core pulling 24 can be arranged on another core pulling mechanism to save space.
  • the two-way core-pulling mechanism can be used in insert forming die-casting, and the modular insert modules are spliced to facilitate the forming of workpieces with complex surface shapes.
  • the surface of the multi-directional valve body forming process the surface of the The complexity of the parting surface makes it difficult to determine the position of its parting surface during the design process, that is, it is difficult to realize the demolding process, but through insert molding, the shape of the parting surface can be greatly simplified for easy demoulding;
  • the core 24 is formed;
  • the first core pulling 23 and the second core pulling 24 are arranged on the connecting frame 26, the connecting frame 26 can receive the insert, and the first core pulling 23 and the second core pulling 24 pass through the insert, A forming surface is set on the insert, and the shape of the forming surface is processed into a partial shape of the workpiece, and the first core pulling 23 and the second core pulling 24 protrude from the forming surface on the insert; the first core pulling 23 , The second core pulling 24 is arranged on the same insert, which reduces the number of inserts and reduces the drive device for driving the inserts to move. In order for the drive device to drive the inserts, it is necessary to configure a suitable fixing frame for the drive device.
  • the first core-pulling 23 and the second core-pulling 24 are arranged on the same connecting frame 26, which can save space.
  • the workpiece after die-casting has a clamping force on the core-pulling, when the core-pulling is pulled out, the The core is easy to pull the workpiece and deform the workpiece.
  • the volume of each insert will decrease, and the contact area with the workpiece will decrease.
  • the workpiece exerts pressure on the forming surface of the insert, and as the contact area decreases, The pressure on the contact area increases, making the shape of the mold machined on the formable surface more easily damaged, thereby reducing the service life.
  • the two-way core pulling mechanism further includes a fixing bracket 22 and a first driving module 21 mounted on the fixing bracket 22 .
  • the first driving module 21 is used to drive the connecting frame 26 along the first core pulling
  • the first driving module 21 is installed on the fixing bracket 22, and the fixing bracket 22 is fixed on the base surface;
  • the fixing bracket 22 is a fixing frame fixed on the periphery of the mold as a driving device.
  • the fixing bracket 22 is U-shaped, the two ends of the fixing bracket 22 are installed on the mold body, and the first driving module 21 is installed at the lowest point of the fixing bracket 22. At the position, the power output end of the first driving module 21 extends from the fixing bracket 22 to the mold to be connected to the connecting frame 26 .
  • a limit component is fixedly arranged relative to the fixing bracket 22 , and the limit component includes a side plate 271 and a base 272 .
  • the connecting frame 26 is driven by the first driving module 21 to move along the direction defined by the limiting assembly.
  • the upper surface 265 of the connecting frame 26 extends upward and protrudes to form a stepped body of the connecting frame 26 ; wherein, the raised part is used to form the first core pulling 23 and The mounting block of the second drive module 25 .
  • the first mounting portion in the mounting block is disposed at one side edge of the connecting frame 26 , and the first mounting portion is used to install the first core pulling 23 so that the cross-section of the connecting frame 26 is
  • the shape is L-shaped, and the first core pulling 23 passes through the connecting frame 26, so that the first core pulling 23 is fixed at the corner of the connecting frame 26, so as to increase the strength of the first core pulling 23. stability.
  • the mounting block further includes a second mounting portion for receiving the second driving module 25.
  • the second mounting portion starts from the first mounting portion and extends along the second core pulling direction 241.
  • the driving module 25 is fixedly mounted on the end of the second mounting portion away from the first mounting portion, thereby allowing the second core pulling 24 to pass through the second mounting portion;
  • the first mounting portion and the second mounting portion are integrally combined to form the overall structure of the mounting block, and finally the second core pulling 24 is transmitted from the first mounting portion, and the second core pulling 24 It extends to the same side as the first core pulling 23 .
  • the mounting block is provided with a guide hole 262 penetrating the mounting block along the second core-pulling direction 241 , the guide hole 262 is located in the second mounting portion, and the second core-pulling 24 is provided with In the guide hole 262 , the second core pulling 24 is matched and connected with the guide hole 262 . Under the driving of the second driving module 25 , the second core pulling 24 is driven from the guide hole. 262 inside out.
  • the mounting block is provided with a groove 264, and the groove 264 corresponds to the guide hole 262, so that the second core pulling 24 finally protrudes from the groove 264;
  • the second core pulling 24 is covered with a sleeve, the position between the sleeve and the connecting frame 26 is guaranteed to be relatively static, and the second driving module 25 drives the second core pulling 24 relative to the sleeve
  • the sleeve slides, a limiting groove 242 is defined on the outer wall of the sleeve at the position of the groove 264, a fixing block 261 is installed in the groove 264, and the fixing block 261 is inserted into the limiting groove 242 to limit the sleeve
  • the position of the barrel; the limiting groove 242 is an inwardly concave annular groove set on the sleeve, so that the sleeve forms a stepped shape, and the fixing block 261 includes two downwardly extending plugs, the plugs From the corresponding two sides of the sleeve, the limiting groove 242 is clamped, and the fixing block 261 is fixedly connected with the connecting frame 26, thereby limiting the position of the sleeve
  • a blocking portion 267 protrudes outward from the side wall of the connecting frame 26 .
  • a space for the blocking portion 267 to slide is provided on the side plate 271 corresponding to the blocking portion 267 .
  • the moving distance of the connecting frame 26 is limited by the opening.
  • a connector 211 is installed on the power output end of the first driving module 21 , and a bayonet 263 is formed on one end of the connecting frame 26 close to the first driving module 21 , and the connector 211 extends into the connector. into the bayonet 263 , so that the first driving module 21 and the connecting frame 26 form a fixed connection structure.
  • the side plate 271 and the base 272 are independent of each other, and the side plate 271 and the base 272 remain relatively stationary.
  • the side plate 271 and the base 272 are installed on the base plate.
  • the base 272 is installed on the mold, the two sides of the connecting frame 26 are provided with sliding rails 266, and the gap between the side plate 271 and the base 272 is consistent with the thickness of the sliding rail 266, so that the The connecting frame 26 is restricted to move within the sliding track formed by the side plate 271 and the base 272 ; at the same time, the bottom of the side plate 271 is provided with a slot, when the slot is matched with the upper surface of the base 272
  • the sliding rails 266 are arranged to sandwich the connecting frame 26 therebetween.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

一种应用于轻量化阀体成型的双向抽芯机构,连接架(26)上安装有第一抽芯(23)和第二驱动模组(25),第二抽芯(24)连接于第二驱动模组动力传输端上,第一驱动模组(21)驱动连接架沿第一抽芯的轴向移动以形成第一抽芯方向(231),第二驱动模组驱动第二抽芯以形成第二抽芯方向(241),第二抽芯方向相对第一抽芯方向倾斜,以使得两抽芯成型出不同角度处的孔道。该双向抽芯机构使用方便,结构简单。

Description

一种应用于轻量化阀体成型的双向抽芯机构 技术领域
本发明属于压铸领域,具体涉及一种应用于轻量化阀体成型的双向抽芯机构。
背景技术
在压铸领域中,尤其是在成型一些表面复杂的工件时,常采用侧抽的镶块成型,利用镶块合拢形成所需压铸工件外壁的表面形状,以简化分型面。在使用现有的压铸模具的过程中,发明人发现现有压铸模具中的抽芯机构的至少存在如下问题:
首先,模具中的抽芯机构用于成型工件上的孔型,成型的工件包紧在抽芯上,由于抽芯上的抱紧力较大,将抽芯抽出时受抱紧力的影响,在拉动工件时易造成工件的变形,尤其是,在汽车上的多向阀的阀体上周向上布置有多个孔道,阀体的外部形状复杂,可通过镶块成型阀体的外形,同时,镶块还可作为限位部,抽芯机构对应设置在镶块内,利用镶块限制拉动抽芯时工件产生形变,而阀体上外侧壁上还有斜向的孔道,为了配合成型斜向孔道,需要设置斜抽芯,而抽芯的方向与其他的抽芯件方向不同,需要额外的镶块以对应斜抽芯以避免抽芯过程中产生变形;而在利用镶块成型过程中,需要驱动模组带动镶块,当镶块数量增加使得驱动模组也增多,更重要的是,为了抵消拉动抽芯时的抱紧力,抽芯拉动工件压设在镶块上,镶块数量增多使得单个镶块与工件的接触面积减小,从而增大了镶块上的压强,从而降低了镶块的使用寿命。
有鉴于此,实有必要开发一种应用于轻量化阀体成型的双向抽芯机构,用以解决上述问题。
发明内容
针对现有技术中存在的不足之处,本发明的主要目的是,提供一种应用 于轻量化阀体成型的双向抽芯机构,其通过将两个相对倾斜的抽芯设置在同一镶块的连接架上,减少了镶块数量。
为了实现根据本发明的上述目的和其他优点,提供的一种应用于轻量化阀体成型的双向抽芯机构,包括:
连接架,其上安装有第一抽芯;
安装在所述连接架的第二驱动模组;以及
连接于所述第二驱动模组动力传输端上的第二抽芯;
其中,所述第一抽芯在外部驱动机构的驱动下,使得所述第一抽芯上的成型部沿其轴线上第一抽芯方向移动,所述第二驱动模组驱动所述第二抽芯沿所述第一抽芯上的轴线第二抽芯方向移动,所述第二抽芯方向相对所述第一抽芯方向倾斜,以使得两抽芯成型出不同角度处的孔道。
优选地,所述连接架的上表面向上延伸凸起以形成台阶型的所述连接架本体;其中,凸起部位用于形成承接所述第一抽芯以及第二驱动模组的安装块。
优选地,所述安装块内的第一安装部设置于所述连接架的一侧边沿处,所述一安装部用于安装所述第一抽芯。
优选地,所述安装块还包括用于承接所述第二驱动模组的第二安装部,所述第二安装部由所述第一安装部出发沿第二抽芯方向延伸;
所述第一安装部与所述第二安装部一体式结合形成所述安装块的整体结构。
优选地,所述安装块上开设有沿所述第二抽芯方向贯穿所述安装块的导向孔,所述导向孔位于所述第二安装部内。
优选地,所述第二驱动模组安装在所述第二安装部远离所述第一安装部的一端上,所述第二抽芯设置在所述导向孔内,在所述第二驱动模组的驱动下,使得所述第二抽芯从所述导向孔内伸出。
优选地,所述安装块上设置有凹槽,所述凹槽对应所述导向孔;
所述第二抽芯外套设有一套筒,所述第二驱动模组驱动所述第二抽芯相对所述套筒滑动,所述套筒位于凹槽位置的外壁上开设有限位槽,所述凹槽安装有固定块,所述固定块插入所述限位槽,以限制所述套筒的位置。
优选地,还包括固定支架及安装在所述固定支架上的第一驱动模组,所述第一驱动模组用于驱动所述连接架沿所述第一抽芯方向移动;
所述第一驱动模组安装在所述固定支架上,所述固定支架固定在基面上;
与所述固定支架相对固定设置有限位组件,所述限位组件包括侧板以及底座,所述侧板以及底座形成用于承放所述连接架的容纳腔,所述连接架在所述第一驱动模组的驱动下沿所述限位组件限定的方向移动。
优选地,所述连接架的侧壁上向外凸出形成阻挡部,对应所述阻挡部一侧的所述侧板上设置供所述阻挡部滑动的让位口,同时,通过所述让位口限制所述连接架的移动距离。
优选地,所述第一驱动模组的动力输出端上安装有一接头,所述连接架上靠近所述第一驱动模组的一端上开设有卡口,通过所述接头伸入所述卡口内,使得所述第一驱动模组与所述连接架形成固定连接结构。
相比现有技术,本发明的有益效果在于:
本发明提供的一种应用于轻量化阀体成型的双向抽芯机构,包括两抽芯,两抽芯的轴线方向相对倾斜,通过两抽芯分别成型不同角度的孔道,同时,两抽芯设置在同一镶块的连接架上,从而减小了镶块的数量,在保证了镶块强度并节约了制造成本,发明结构简单、使用方便。
上述说明仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段,并可依照说明书的内容予以实施,以下以本发明的较佳实施例并配合附图详细说明如后。本发明的具体实施方式由以下实施例及其附图详细给出。
附图说明
此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:
图1为本发明在一优选实施例中的立体结构示意图;
图2为图1的局部放大示意图;
图3为本发明在一优选实施例中的爆炸示意图;
图4为本发明在一优选实施例中的俯视图;
图5为本发明在一优选实施例中的左视图;
图6为本发明在一优选实施例中连接架的部分结构示意图。
图中所示:
21、第一驱动模组;211、接头;
22、固定架;
23、第一抽芯;231、第一抽芯方向;
24、第二抽芯;241、第二抽芯方向;242、限位槽;
25、第二驱动模组;
26、连接架;261、固定块;262、导向孔;263、卡口;264、凹槽;265、第二表面;266、滑轨;267、阻挡部;
271、侧板;272、底座。
具体实施方式
下面结合附图对本发明做进一步的详细说明,本发明的前述和其它目的、特征、方面和优点将变得更加明显,以令本领域技术人员参照说明书文字能够据以实施,所描述的实施方式仅仅是本发明一部分实施方式,而不是全部的实施方式。基于本发明中的实施方式,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
在附图中,为清晰起见,可对形状和尺寸进行放大,并将在所有图中使用相同的附图标记来指示相同或相似的部件。
除非另作定义,此处使用的技术术语或者科学术语应当为本发明所属领域内具有一般技能的人士所理解的通常意义。本发明专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性,而只是用来区分不同的组成部分。同样,“一个”、“一”或者“该”等类似词语也不表示数量限制,而是表示存在至少一个。“包括”或者“包含” 等类似的词语意指出现在“包括”或者“包含”前面的元件或者物件涵盖出现在“包括”或者“包含”后面列举的元件或者物件及其等同,并不排除其他元件或者物件。“上”、“下”、“左”、“右”等仅用于表示相对位置关系,当被描述对象的绝对位置改变后,则该相对位置关系也可能相应地改变。
在下列描述中,诸如中心、厚度、高度、长度、前部、背部、后部、左边、右边、顶部、底部、上部、下部等用词为基于附图所示的方位或位置关系。特别地,“高度”相当于从顶部到底部的尺寸,“宽度”相当于从左边到右边的尺寸,“深度”相当于从前到后的尺寸。这些相对术语是为了说明方便起见并且通常并不旨在需要具体取向。涉及附接、联接等的术语(例如,“连接”和“附接”)是指这些结构通过中间结构彼此直接或间接固定或附接的关系、以及可动或刚性附接或关系,除非以其他方式明确地说明。
下面,结合附图以及具体实施方式,对本发明做进一步描述,需要说明的是,在不相冲突的前提下,以下描述的各实施例之间或各技术特征之间可以任意组合形成新的实施例。
根据本发明的参照图1~图5,可以看出,一种应用于轻量化阀体成型的双向抽芯机构,包括:
连接架26,其上安装有第一抽芯23;
安装在所述连接架26的第二驱动模组25;以及
连接于所述第二驱动模组25动力传输端上的第二抽芯24;
其中,所述第一抽芯23在外部驱动机构的驱动下,使得所述第一抽芯23上的成型部沿其轴线上第一抽芯方向231移动,所述第二驱动模组25驱动所述第二抽芯24沿所述第一抽芯23上的轴线第二抽芯方向241移动,所述第二抽芯方向241相对所述第一抽芯方向231倾斜,以使得两抽芯成型出不同角度处的孔道。
所述第二抽芯方向241与所述第一抽芯方向231倾斜的角度α的范围在15°~45°之间,当α角度太小时,所述第一抽芯23的驱动组件与所述第二抽芯24的所述第二驱动模组25之间易产生干涉,并且当α角度足够小时,利用同一驱动组件就可完成对两抽芯的拉动;而当α角度足够大时,在一优选的方案中,模具的四边上设置由抽芯机构,当α角度大于45°时,所述第 二抽芯24与相邻的另一个抽芯机构之间的倾斜角度就小于45°,此时,可将所述第二抽芯24设置在另一抽芯机构上,以节约空间。
在具体地,使用过程中,该双向抽芯机构可用于镶块成型压铸中,通过模块化的镶块模组拼接以便于成型表面形状复杂的工件,在多向阀体成型过程中,其表面的复杂性导致了在设计过程中难以确定其分型面的位置,即难以实现脱模过程,而通过镶块成型,可大大简化分型面的形状以便于脱模;而多向阀体上设置有多个连通的孔道,为了成型出这些孔道需要设置抽芯机构,而在这些孔道内中存在有斜向的孔道,为了成型出该斜向的孔道,通过本实施例中的第二抽芯24成型;
通过所述第一抽芯23、第二抽芯24设置在所述连接架26,所述连接架26可承接镶块,所述第一抽芯23、第二抽芯24穿过镶块,镶块上设置成型面,成型面上形状加工成工件的部分外形,而所述第一抽芯23、第二抽芯24从镶块上的成型面上伸出;所述第一抽芯23、第二抽芯24设置在同一块镶块上,减少了镶块的数量,以减少驱动镶块移动的驱动装置,为了驱动装置可带动镶块需要为驱动装置配置相适应的固定架,在模具的外侧设置多个固定架,而当需要增加镶块则需要配置更多的驱动装置以及固定架,模具外的空间有限,外围的空间内已经难以容纳更多的驱动元件;因此,将所述第一抽芯23、第二抽芯24设置在同一所述连接架26上,可以节约空间,同时,由于压铸成型后的工件对抽芯存在抱紧力,在将抽芯抽出时,抽芯易造成拉动工件并使工件产生变形,为了保证工件的形状,在抽芯拉动的过程中,需要镶块将工件抵靠以限制工件的形状变化,若第一抽芯23、第二抽芯24分成两镶块,则每一块镶块的体积将减小,与工件的接触面积减小,当进行抽芯时,工件对镶块成型面上施加压力,而随着接触面积的减小,接触面积上的压强增大,造成可成型面上加工出的模具形状更容易损坏,从而使用寿命减短。
该双向抽芯机构还包括固定支架22及安装在所述固定支架22上的第一驱动模组21,所述第一驱动模组21用于驱动所述连接架26沿所述第一抽芯方向231移动;所述第一驱动模组21安装在所述固定支架22上,所述固定支架22固定在基面上;固定支架22为固定在模具外围上的固定架,以作为 驱动装置的支撑施力点,为了保证其强度,所述固定支架22呈U型,所述固定支架22的两端安装模具本体上,所述第一驱动模组21安装在所述固定支架22的最低点的位置处,所述第一驱动模组21的动力输出端从穿过所述固定支架22伸向模具以连接在所述连接架26上。
与所述固定支架22相对固定设置有限位组件,所述限位组件包括侧板271以及底座272,所述侧板271以及底座272形成用于承放所述连接架26的容纳腔,所述连接架26在所述第一驱动模组21的驱动下沿所述限位组件限定的方向移动。
如图6详细示出了,所述连接架26的上表面265向上延伸凸起以形成台阶型的所述连接架26本体;其中,凸起部位用于形成承接所述第一抽芯23以及第二驱动模组25的安装块。
具体地,所述安装块内的第一安装部设置于所述连接架26的一侧边沿处,所述一安装部用于安装所述第一抽芯23,使得所述连接架26的截面形状呈L型,所述第一抽芯23穿过所述连接架26,使得所述第一抽芯23固定在所述连接架26的拐角位置处,以增加所述第一抽芯23的稳定性。
所述安装块还包括用于承接所述第二驱动模组25的第二安装部,所述第二安装部由所述第一安装部出发沿第二抽芯方向241延伸,所述第二驱动模组25固定安装在所述第二安装部远离所述第一安装部的一端上,由此使得所述第二抽芯24从所述第二安装部内穿过;
所述第一安装部与所述第二安装部一体式结合形成所述安装块的整体结构,最终所述第二抽芯24从所述第一安装部内传出,所述第二抽芯24延伸至与所述第一抽芯23同一侧面上。
具体地,所述安装块上开设有沿所述第二抽芯方向241贯穿所述安装块的导向孔262,所述导向孔262位于所述第二安装部内,所述第二抽芯24设置在所述导向孔262内,所述第二抽芯24与所述导向孔262配合连接,在所述第二驱动模组25的驱动下,使得所述第二抽芯24从所述导向孔262内伸出。
更进一步地,所述安装块上设置有凹槽264,所述凹槽264对应所述导向孔262,使得所述第二抽芯24最终从而所述凹槽264内伸出;
所述第二抽芯24外套设有一套筒,所述套筒与所述连接架26间的位置保证相对静止,所述第二驱动模组25驱动所述第二抽芯24相对所述套筒滑动,所述套筒位于凹槽264位置的外壁上开设有限位槽242,所述凹槽264安装有固定块261,所述固定块261插入所述限位槽242,以限制所述套筒的位置;所述限位槽242为套筒上设置的向内凹陷的环形槽,使得所述套筒形成阶梯状,所述固定块261包括两向下延伸的插销件,所述插销件从所述套筒的对应的两侧,以钳制所述限位槽242,同时所述固定块261与所述连接架26固定连接,从而限制了所述套筒的位置。
所述连接架26的侧壁上向外凸出形成阻挡部267,参考图2所示,对应所述阻挡部267一侧的所述侧板271上设置供所述阻挡部267滑动的让位口,同时,通过所述让位口限制所述连接架26的移动距离。
所述第一驱动模组21的动力输出端上安装有一接头211,所述连接架26上靠近所述第一驱动模组21的一端上开设有卡口263,通过所述接头211伸入所述卡口263内,使得所述第一驱动模组21与所述连接架26形成固定连接结构。
所述侧板271以及底座272间相互独立,且所述侧板271以及底座272间又保持相对的静止,所述侧板271以及底座272安装在基板上,具体地,所述侧板271以及底座272安装在模具上,所述连接架26的两侧边上设置有滑轨266,所述侧板271与所述底座272间的间隙与所述滑轨266的厚度一致,从而将所述连接架26限制在所述侧板271与所述底座272形成的滑动轨道内移动;同时,所述侧板271的底部设置有槽位,当所述槽位与所述底座272上表面配合所述滑轨266以将所述连接架26夹设在其之间。
以上,仅为本发明的较佳实施例而已,并非对本发明作任何形式上的限制;凡本行业的普通技术人员均可按说明书附图所示和以上而顺畅地实施本发明;但是,凡熟悉本专业的技术人员在不脱离本发明技术方案范围内,利用以上所揭示的技术内容而做出的些许更动、修饰与演变的等同变化,均为本发明的等效实施例;同时,凡依据本发明的实质技术对以上实施例所作的任何等同变化的更动、修饰与演变等,均仍属于本发明的技术方案的保护范围之内。

Claims (10)

  1. 一种应用于轻量化阀体成型的双向抽芯机构,其特征在于,包括:
    连接架(26),其上安装有第一抽芯(23);
    安装在所述连接架(26)的第二驱动模组(25);以及
    连接于所述第二驱动模组(25)动力传输端上的第二抽芯(24);
    其中,所述第一抽芯(23)在外部驱动机构的驱动下,使得所述第一抽芯(23)上的成型部沿其轴线上第一抽芯方向(231)移动,所述第二驱动模组(25)驱动所述第二抽芯(24)沿所述第一抽芯(23)上的轴线第二抽芯方向(241)移动,所述第二抽芯方向(241)相对所述第一抽芯方向(231)倾斜,以使得两抽芯成型出不同角度处的孔道。
  2. 如权利要求1所述的双向抽芯机构,其特征在于,所述连接架(26)的上表面(265)向上延伸凸起以形成台阶型的所述连接架(26)本体;其中,凸起部位用于形成承接所述第一抽芯(23)以及第二驱动模组(25)的安装块。
  3. 如权利要求2所述的双向抽芯机构,其特征在于,所述安装块内的第一安装部设置于所述连接架(26)的一侧边沿处,所述一安装部用于安装所述第一抽芯(23)。
  4. 如权利要求2所述的双向抽芯机构,其特征在于,所述安装块还包括用于承接所述第二驱动模组(25)的第二安装部,所述第二安装部由所述第一安装部出发沿第二抽芯方向(241)延伸;
    所述第一安装部与所述第二安装部一体式结合形成所述安装块的整体结构。
  5. 如权利要求4所述的双向抽芯机构,其特征在于,所述安装块上开设有沿所述第二抽芯方向(241)贯穿所述安装块的导向孔(262),所述导向孔(262)位于所述第二安装部内。
  6. 如权利要求5所述的双向抽芯机构,其特征在于,所述第二驱动模组(25)安装在所述第二安装部远离所述第一安装部的一端上,所述第二抽芯(24)设置在所述导向孔(262)内,在所述第二驱动模组(25)的驱动下,使得所述第二抽芯(24)从所述导向孔(262)内伸出。
  7. 如权利要求6所述的双向抽芯机构,其特征在于,所述安装块上设置有凹槽(264),所述凹槽(264)对应所述导向孔(262);
    所述第二抽芯(24)外套设有一套筒,所述第二驱动模组(25)驱动所述第二抽芯(24)相对所述套筒滑动,所述套筒位于凹槽(264)位置的外壁上开设有限位槽(242),所述凹槽(264)安装有固定块(261),所述固定块(261)插入所述限位槽(242),以限制所述套筒的位置。
  8. 如权利要求1-7中任一项所述的双向抽芯机构,其特征在于,还包括固定支架(22)及安装在所述固定支架(22)上的第一驱动模组(21),所述第一驱动模组(21)用于驱动所述连接架(26)沿所述第一抽芯方向(231)移动;
    所述第一驱动模组(21)安装在所述固定支架(22)上,所述固定支架(22)固定在基面上;
    与所述固定支架(22)相对固定设置有限位组件,所述限位组件包括侧板(271)以及底座(272),所述侧板(271)以及底座(272)形成用于承放所述连接架(26)的容纳腔,所述连接架(26)在所述第一驱动模组(21)的驱动下沿所述限位组件限定的方向移动。
  9. 如权利要求8所述的双向抽芯机构,其特征在于,所述连接架(26)的侧壁上向外凸出形成阻挡部(267),对应所述阻挡部(267)一侧的所述侧板(271)上设置供所述阻挡部(267)滑动的让位口,同时,通过所述让位口限制所述连接架(26)的移动距离。
  10. 如权利要求8所述的双向抽芯机构,其特征在于,所述第一驱动模组(21)的动力输出端上安装有一接头(211),所述连接架(26)上靠近所述第一驱动模组(21)的一端上开设有卡口(263),通过所述接头(211)伸入所述卡口(263)内,使得所述第一驱动模组(21)与所述连接架(26)形成固定连接结构。
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