CN105328874B - Injection mold without twice-die-opening - Google Patents

Injection mold without twice-die-opening Download PDF

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Publication number
CN105328874B
CN105328874B CN201510769161.1A CN201510769161A CN105328874B CN 105328874 B CN105328874 B CN 105328874B CN 201510769161 A CN201510769161 A CN 201510769161A CN 105328874 B CN105328874 B CN 105328874B
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mold
core
plate
fixed
fixed plate
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CN105328874A (en
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黄伟明
曾华
柯进兴
柯育仁
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Xiamen Xinda Polytron Technologies Inc
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Xiamen Xinda Polytron Technologies Inc
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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
    • B29C45/26—Moulds
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • 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
    • B29C45/26—Moulds
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • B29C45/332—Mountings or guides therefor; Drives therefor

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention discloses a kind of injection mold without twice-die-opening, including panel, cover half fixed plate, front cavity, dynamic mould fixing plate, rear cavity, thimble, top plate, support block, bottom plate, core-pulling mechanism.Described panel, cover half fixed plate, dynamic mould fixing plate are superimposed together successively, front cavity is arranged in cover half fixed plate, rear cavity is arranged in dynamic mould fixing plate and rear cavity is relative with front cavity, thimble activity is located in dynamic mould fixing plate and rear cavity, die cavity is stretched into one end of thimble, the other end of thimble is fixed on top plate, and top plate is arranged between dynamic mould fixing plate and bottom plate, and dynamic mould fixing plate is connected with bottom plate by support block.Core-pulling mechanism is arranged in cover half fixed plate.Because the present invention has the core-pulling mechanism being made up of parts such as core pulling oil cylinder, connector, self-locking block, front mold slides, before die sinking, front mold slide can be detached die cavity by core pulling oil cylinder; complete core pulling action; twice-die-opening action, formed product cycle time are saved, cost reduces.

Description

无需二次开模的注塑模具Injection mold without secondary mold opening

技术领域technical field

本发明涉及一种注塑模具，特别是涉及一种无需二次开模的注塑模具。The invention relates to an injection mold, in particular to an injection mold without secondary mold opening.

背景技术Background technique

现有市场上的塑料产品的结构越来越复杂，许多塑料制品都具有内槽，从而要求模具也具有能够注塑这种内槽的结构，这就要求有具有一种能够完好的把模具从内槽中抽出的结构，但是这种能够快速方便的抽出模具具有一定的难度，而这方面也一直是本领域技术人员所要解决的问题。现有技术中大都采用多次开模、多次抽芯的方式将处于不同方向凹槽内的型芯抽出，这样在工艺和结构上就复杂的多，也不利于大批量生产。The structure of the plastic products on the existing market is becoming more and more complex, many plastic products have inner grooves, thus requiring the mold to also have a structure capable of injection molding such inner grooves, which requires a tool that can completely separate the mold from the inside However, it is difficult to extract the mold quickly and conveniently, and this aspect has always been a problem to be solved by those skilled in the art. In the prior art, the cores in the grooves in different directions are mostly drawn out by multiple times of mold opening and core pulling, which is much more complicated in technology and structure, and is also not conducive to mass production.

发明内容Contents of the invention

本发明的目的在于提供一种产品成型周期短、动作可靠、结构简单的无需二次开模的注塑模具。The object of the present invention is to provide an injection mold with short molding cycle, reliable action and simple structure without secondary mold opening.

为实现上述目的，本发明的技术解决方案是：For realizing the above object, technical solution of the present invention is:

本发明是一种无需二次开模的注塑模具，包括面板、定模固定板、前模仁、动模固定板、后模仁、顶针、顶板、模脚、底板、抽芯机构；所述的面板、定模固定板、动模固定板依次叠合在一起，作为型腔一部分的前模仁安装在定模固定板内，作为型腔一部分的后模仁安装在动模固定板内且后模仁与前模仁相对，顶针活动穿设在动模固定板和后模仁内，顶针的一端伸入型腔，顶针的另一端固定在顶板上，顶板设置在动模固定板与底板之间，动模固定板与底板通过模脚连接；The invention is an injection mold without secondary mold opening, which includes a panel, a fixed mold fixed plate, a front mold core, a movable mold fixed plate, a rear mold core, a thimble, a top plate, a mold foot, a bottom plate, and a core-pulling mechanism; The panel, the fixed mold fixed plate, and the movable mold fixed plate are stacked together in sequence. The front mold core as a part of the cavity is installed in the fixed mold fixed plate, and the rear mold core as a part of the cavity is installed in the movable mold fixed plate. The rear mold core is opposite to the front mold core, and the thimble is movable through the movable mold fixed plate and the rear mold core. One end of the thimble extends into the cavity, and the other end of the thimble is fixed on the top plate, and the top plate is set on the movable mold fixed plate and the bottom plate. Between, the movable mold fixed plate and the bottom plate are connected through mold feet;

所述的抽芯机构包括抽芯油缸、连接器、自锁块、前模滑块；所述的抽芯油缸的缸体固定在定模固定板的侧壁上，抽芯油缸的活塞杆伸入定模固定板，抽芯油缸的活塞杆与滑接在定模固定板内的连接器一端连接，连接器另一端设有滑轨并固定有自锁块，前模滑块一端的滑槽滑接在连接器的滑轨上且前模滑块该端的卡槽与自锁块卡置，前模滑块另一端伸入型腔。The core-pulling mechanism includes a core-pulling oil cylinder, a connector, a self-locking block, and a front mold slider; the cylinder body of the core-pulling oil cylinder is fixed on the side wall of the fixed mold plate, and the piston rod of the core-pulling oil cylinder extends Enter the fixed mold fixed plate, the piston rod of the core pulling cylinder is connected with one end of the connector slidingly connected in the fixed mold fixed plate, the other end of the connector is provided with a slide rail and fixed with a self-locking block, the chute at one end of the front mold slider Slidingly connected to the slide rail of the connector, the slot at this end of the front mold slider is engaged with the self-locking block, and the other end of the front mold slider extends into the cavity.

采用上述方案后，由于本发明具有由抽芯油缸、连接器、自锁块、前模滑块等部件构成的抽芯机构，在开模之前，抽芯油缸可将前模滑块抽离型腔，完成抽芯动作，省去二次开模动作，产品成型周期缩短，降低了成本。此外，本发明设有滑块自锁机构（自锁块），避免了因成型压力使滑块后退造成产品成型不良等缺陷，使得本发明动作更加可靠。下面结合附图和具体实施例对本发明作进一步的说明。After adopting the above scheme, since the present invention has a core-pulling mechanism composed of core-pulling cylinders, connectors, self-locking blocks, front mold sliders and other components, before the mold is opened, the core-pulling cylinder can pull the front mold sliders out of the mold. Cavity, complete the core pulling action, save the second mold opening action, shorten the product molding cycle, and reduce the cost. In addition, the present invention is equipped with a slider self-locking mechanism (self-locking block), which avoids defects such as poor product molding caused by the retreat of the slider due to molding pressure, making the action of the invention more reliable. The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

附图说明Description of drawings

图1是本发明的正视图；Fig. 1 is the front view of the present invention;

图2是图沿A-A线的剖视图；Fig. 2 is a sectional view along the line A-A;

图3是本发明抽芯机构开始抽芯的示意图；Fig. 3 is a schematic diagram of the core-pulling mechanism of the present invention starting to pull the core;

图4是本发明抽芯机构完成抽芯的示意图；Fig. 4 is a schematic diagram of the core-pulling mechanism of the present invention completing core-pulling;

图5是本发明开模的示意图；Fig. 5 is the schematic diagram of mold opening of the present invention;

图6是本发明顶出机构顶出产品的示意图。Fig. 6 is a schematic diagram of the product ejected by the ejector mechanism of the present invention.

具体实施方式detailed description

如图1所示，本发明是一种无需二次开模的注塑模具，包括面板1、定模固定板2、前模仁3、动模固定板4、后模仁5、抽芯机构6、顶针7、顶板8、模脚9、底板10。As shown in Figure 1, the present invention is an injection mold without secondary mold opening, including a panel 1, a fixed mold fixed plate 2, a front mold core 3, a movable mold fixed plate 4, a rear mold core 5, and a core-pulling mechanism 6 , Thimble 7, top plate 8, die foot 9, bottom plate 10.

所述的面板1、定模固定板2、动模固定板4依次叠合在一起，作为型腔一部分的前模仁3安装在定模固定板2内，作为型腔一部分的后模仁5安装在动模固定板4内且后模仁5与前模仁3相对，顶针7活动穿设在动模固定板4和后模仁5内，顶针7的一端伸入型腔，顶针7的另一端固定在顶板8上，顶板8设置在动模固定板4与底板10之间，动模固定板4与底板10通过模脚9连接。The panel 1, the fixed mold fixed plate 2, and the movable mold fixed plate 4 are sequentially stacked together, the front mold core 3 as a part of the cavity is installed in the fixed mold fixed plate 2, and the rear mold core 5 as a part of the cavity Installed in the movable mold fixed plate 4 and the rear mold core 5 is opposite to the front mold core 3, the thimble 7 is movably installed in the movable mold fixed plate 4 and the rear mold core 5, one end of the thimble 7 extends into the cavity, and the thimble 7 The other end is fixed on the top plate 8, and the top plate 8 is arranged between the movable mold fixed plate 4 and the bottom plate 10, and the movable mold fixed plate 4 and the bottom plate 10 are connected through the die feet 9.

结合图2所示，所述的抽芯机构6包括抽芯油缸61、连接器62、自锁块63、前模滑块64。所述的抽芯油缸61的缸体固定在定模固定板2的侧壁上，抽芯油缸61的活塞杆伸入定模固定板2，抽芯油缸61的活塞杆与滑接在定模固定板2内的连接器62一端连接，连接器62另一端设有滑轨621并固定有自锁块63，前模滑块64一端的滑槽641滑接在连接器62的滑轨621上且前模滑块64该端的卡槽642与自锁块63卡置，前模滑块64另一端伸入型腔。As shown in FIG. 2 , the core-pulling mechanism 6 includes a core-pulling cylinder 61 , a connector 62 , a self-locking block 63 , and a front mold slider 64 . The cylinder body of the core-pulling oil cylinder 61 is fixed on the side wall of the fixed mold fixed plate 2, the piston rod of the core-pulled oil cylinder 61 extends into the fixed mold fixed plate 2, and the piston rod of the core-pulled oil cylinder 61 is slidingly connected to the fixed mold fixed plate 2. One end of the connector 62 in the fixed plate 2 is connected, and the other end of the connector 62 is provided with a slide rail 621 and is fixed with a self-locking block 63. And the locking groove 642 at this end of the front mold slider 64 is engaged with the self-locking block 63, and the other end of the front mold slider 64 extends into the mold cavity.

本发明的工作原理：Working principle of the present invention:

1、如图3所示，抽芯机构6上抽芯油缸61的活塞杆收缩，带动自锁块63脱离前模滑块64上的卡槽642，如图4所示，同时，连接器62上的滑轨621（如图2所示）通过滑槽641带动前模滑块64脱离型腔，完成抽芯。1. As shown in Figure 3, the piston rod of the core-pulling cylinder 61 on the core-pulling mechanism 6 shrinks, driving the self-locking block 63 to break away from the slot 642 on the front mold slider 64, as shown in Figure 4, at the same time, the connector 62 The upper slide rail 621 (as shown in FIG. 2 ) drives the front mold slider 64 out of the cavity through the chute 641 to complete the core pulling.

2、如图5所示，开模，定模固定板2和动模固定板4分离。2. As shown in Figure 5, the mold is opened, and the fixed mold fixed plate 2 and the movable mold fixed plate 4 are separated.

3、如图6所示，顶板8推动顶针7、顶出产品100。3. As shown in FIG. 6 , the top plate 8 pushes the ejector pin 7 to eject the product 100 .

本发明的重点就在于：设有抽芯机构。The key points of the present invention are: a core-pulling mechanism is provided.

以上所述，仅为本发明较佳实施例而已，故不能以此限定本发明实施的范围，即依本发明申请专利范围及说明书内容所作的等效变化与修饰，皆应仍属本发明专利涵盖的范围内。The above is only a preferred embodiment of the present invention, so it cannot limit the scope of the present invention, that is, the equivalent changes and modifications made according to the patent scope of the present invention and the content of the specification should still belong to the patent of the present invention within the scope covered.

Claims (1)

1.一种无需二次开模的注塑模具，其特征在于：包括面板、定模固定板、前模仁、动模固定板、后模仁、顶针、顶板、模脚、底板、抽芯机构；所述的面板、定模固定板、动模固定板依次叠合在一起，作为型腔一部分的前模仁安装在定模固定板内，作为型腔一部分的后模仁安装在动模固定板内且后模仁与前模仁相对，顶针活动穿设在动模固定板和后模仁内，顶针的一端伸入型腔，顶针的另一端固定在顶板上，顶板设置在动模固定板与底板之间，动模固定板与底板通过模脚连接；1. An injection mold without secondary mold opening, characterized in that it includes a panel, a fixed mold fixed plate, a front mold core, a movable mold fixed plate, a rear mold core, a thimble, a top plate, a mold foot, a bottom plate, and a core-pulling mechanism ; The panel, the fixed mold fixed plate and the movable mold fixed plate are stacked together successively, the front mold core as a part of the cavity is installed in the fixed mold fixed plate, and the rear mold core as a part of the cavity is installed on the movable mold fixed plate Inside the plate and the rear mold core is opposite to the front mold core, the thimble is movable through the movable mold fixed plate and the rear mold core, one end of the thimble extends into the cavity, the other end of the thimble is fixed on the top plate, and the top plate is fixed on the movable mold. Between the plate and the bottom plate, the movable mold fixed plate and the bottom plate are connected through mold feet; 所述的抽芯机构包括抽芯油缸、连接器、自锁块、前模滑块；所述的抽芯油缸的缸体固定在定模固定板的侧壁上，抽芯油缸的活塞杆伸入定模固定板，抽芯油缸的活塞杆与滑接在定模固定板内的连接器一端连接，连接器另一端设有滑轨并固定有自锁块，前模滑块一端的滑槽滑接在连接器的滑轨上且前模滑块该端的卡槽与自锁块卡置，前模滑块另一端伸入型腔。The core-pulling mechanism includes a core-pulling oil cylinder, a connector, a self-locking block, and a front mold slider; the cylinder body of the core-pulling oil cylinder is fixed on the side wall of the fixed mold plate, and the piston rod of the core-pulling oil cylinder extends Enter the fixed mold fixed plate, the piston rod of the core pulling cylinder is connected with one end of the connector slidingly connected in the fixed mold fixed plate, the other end of the connector is provided with a slide rail and fixed with a self-locking block, the chute at one end of the front mold slider Slidingly connected to the slide rail of the connector, the slot at this end of the front mold slider is engaged with the self-locking block, and the other end of the front mold slider extends into the cavity.
CN201510769161.1A 2015-11-12 2015-11-12 Injection mold without twice-die-opening Active CN105328874B (en)

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Publication number Priority date Publication date Assignee Title
CN108115898A (en) * 2016-11-30 2018-06-05 宇龙计算机通信科技(深圳)有限公司 Mold
CN107009584B (en) * 2017-03-31 2019-04-19 神通科技集团股份有限公司 Injection molding method requiring secondary core pulling
CN110252992A (en) * 2019-07-22 2019-09-20 广州市型腔模具制造有限公司 A kind of gearbox type cavity mould dynamic model sliding equipment
CN112936765B (en) * 2021-03-19 2022-08-26 重庆持恒模具有限公司 Core pulling mechanism for inward opening handle of vehicle door

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CN102233628A (en) * 2010-04-21 2011-11-09 苏州汉扬精密电子有限公司 Novel angle core-pulling mechanism
CN202727273U (en) * 2012-07-25 2013-02-13 宁波宇升模业有限公司 Oblique core-pulling mechanism arranged on fixed mould support plate
CN204622489U (en) * 2015-03-05 2015-09-09 上海信羽电子科技有限公司 Cavity core pulling retreating prevention mechanism
CN205167449U (en) * 2015-11-12 2016-04-20 厦门捷信达模具塑胶有限公司 Need not injection mold of secondary die sinking

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