WO2024138806A1 - 一种注塑模具的组合脱模机构 - Google Patents

一种注塑模具的组合脱模机构 Download PDF

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Publication number
WO2024138806A1
WO2024138806A1 PCT/CN2023/072343 CN2023072343W WO2024138806A1 WO 2024138806 A1 WO2024138806 A1 WO 2024138806A1 CN 2023072343 W CN2023072343 W CN 2023072343W WO 2024138806 A1 WO2024138806 A1 WO 2024138806A1
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WO
WIPO (PCT)
Prior art keywords
mold
sliding block
fixed
drawer
seat
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.)
Ceased
Application number
PCT/CN2023/072343
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English (en)
French (fr)
Inventor
虞伟炳
李金国
傅建华
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Zhejiang Saihao Industrial Co Ltd
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Zhejiang Saihao Industrial Co Ltd
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Filing date
Publication date
Application filed by Zhejiang Saihao Industrial Co Ltd filed Critical Zhejiang Saihao Industrial Co Ltd
Publication of WO2024138806A1 publication Critical patent/WO2024138806A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/4005—Ejector constructions; Ejector operating mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof

Definitions

  • the invention belongs to the technical field of molds and relates to a combined demoulding mechanism of an injection mold.
  • the injection mold includes a fixed mold seat and a movable mold seat. There is a cavity between the fixed mold seat and the movable mold seat, and the lampshade is molded in the cavity.
  • the fixed mold seat is used to mold the outer side of the lampshade
  • the movable mold seat is used to mold the inner side of the lampshade.
  • a drawer is generally set at the position corresponding to the mold and the product.
  • demolding first separate the drawer from the undercut structure or special structure, and then separate the fixed mold seat from the movable mold seat to remove the molded lampshade.
  • the movable mold spring plate is provided with a horizontal slide groove and an inclined slide groove, a core pull-out seat is provided in the horizontal slide groove, a core pull-out is provided in the inclined slide groove, and the core pull-out seat and the core pull-out are movably connected.
  • a fixed mold spring is provided on the movable mold spring plate, which can separate the movable mold pad and the movable mold spring plate.
  • the core pull-out is the movable mold pull-out block. After the product is injection molded, when the mold is opened, the fixed mold spring pops out and drives the movable mold pad to move, so that the movable mold spring plate is separated from the movable mold pad.
  • the core pulling seat is fixed on the movable mold pad and retreats together with the movable mold pad. The core pulling seat drives the core pulling to move obliquely upward along the inclined slide groove, and finally the core pulling is separated from the product.
  • the purpose of the present invention is to solve the above problems existing in the prior art and to propose a combined demoulding mechanism for an injection mold, thereby solving the technical problem of low production efficiency of the existing combined demoulding mechanism.
  • the opening plate moves away from the movable mold seat, thereby simultaneously driving the sliding block and the movable mold block to move away from the fixed mold seat.
  • the lever on the sliding block drives the fixed mold block to slide on the fixed mold seat away from the cavity, that is, the fixed mold block and the movable mold block are simultaneously away from the cavity to achieve simultaneous demolding, and then the fixed mold seat and the movable mold seat are separated to allow the product to be ejected.
  • closing the mold first close the fixed mold seat and the movable mold seat, and then move the opening plate towards the movable mold seat, thereby simultaneously driving the sliding block and the movable mold block to move towards the fixed mold seat.
  • the lever on the sliding block drives the fixed mold block to move in the fixed mold seat.
  • the seat slides towards the direction of the cavity, that is, the fixed die drawer and the movable die drawer simultaneously approach the cavity to achieve simultaneous mold closing.
  • This can reduce mold movement, shorten the production cycle of a single product, and thus improve production efficiency.
  • the sliding block is set in the movable die seat, and the lever is inserted in the fixed die drawer, so the setting of the sliding block and the lever does not require additional mold volume.
  • the vertical arrangement of the sliding block and the opening plate can reduce the sliding friction when the sliding block slides in the movable mold seat, making the sliding block slide smoothly. Moreover, when the sliding block is perpendicular to the opening plate and the lever is tilted toward the side away from the cavity, not only can the sliding block drive the fixed mold drawer to slide, but the sliding block can also drive the fixed mold drawer away from and close to the cavity in the shortest sliding distance, which is conducive to improving work efficiency.
  • the sliding block When opening the mold, the sliding block slides in the direction away from the fixed mold seat, the sliding block separates from the fixed mold drawer, the lock of the fixed mold drawer is released, and the fixed mold drawer is driven to leave the cavity position by the lever to achieve demolding; when closing the mold, the sliding block moves in the direction close to the fixed mold seat, and the fixed mold drawer is driven to approach the cavity position by the lever until the sliding block abuts against the fixed mold drawer and locks the fixed mold drawer on the fixed mold seat.
  • the sliding block not only has the function of driving the fixed mold drawer to achieve demolding and mold closing, but also has the function of locking the fixed mold drawer after mold closing.
  • a positioning recess is provided on the side of the fixed mold drawer block facing the sliding block, and the end of the sliding block close to the fixed mold seat is inserted into the positioning recess.
  • An inclined wedge surface is provided between the end face of the sliding block close to the fixed mold seat and the side face of the sliding block close to the cavity, and the side face of the positioning recess has a corresponding surface corresponding to the wedge surface.
  • the end of the sliding block close to the fixed die seat is inserted into the positioning notch, so that the sliding block and the fixed die slide block are limited by the positioning notch, which is convenient for positioning and installing the sliding block and the fixed die drawer.
  • the setting of the inclined wedge surface and the corresponding surface can reduce the interference when the sliding block slides, so that the sliding block can smoothly drive the fixed die drawer to demould, which is conducive to ensuring production efficiency.
  • elastic pads are provided on the end surface of the sliding block close to the fixed mold seat and on the wedge surface. After the injection mold is closed, the elastic pads elastically abut against the fixed mold drawer block.
  • the fixed die spring is elastic, which not only assists the sliding of the fixed die drawer during demoulding, allowing the fixed die drawer and the movable die drawer to quickly complete demoulding, which is beneficial to improving production efficiency, but also has a buffering effect during mold closing, reducing the hard collision between the fixed die drawer and the fixed die seat, making the combined demoulding mechanism work stably and extending its service life.
  • the opening plate has a groove 1, and the end of the sliding block away from the fixed mold seat is embedded in the groove 1.
  • the groove 1 has a positioning function, which facilitates the positioning and installation of the sliding block and the opening plate.
  • the sliding block is in a rectangular parallelepiped shape
  • the lever is in a cylindrical shape.
  • the sliding block is in a rectangular parallelepiped shape, which has a circumferential positioning function, so that the sliding block will not rotate when sliding, and the sliding block works stably.
  • the lever is in a cylindrical shape, which can reduce the sliding friction and sliding interference between the fixed mold drawer and the fixed mold drawer, so that the demoulding of the fixed mold drawer can be carried out smoothly.
  • the present invention has the following advantages:
  • a slidable sliding block is arranged in the movable mold seat, one end of the sliding block is connected to the opening plate, and a lever inserted into the movable mold drawer is arranged at the other end of the sliding block.
  • the sliding block and the movable mold drawer are driven by the opening plate, and the sliding block drives the fixed mold drawer through the lever, so that the movable mold drawer and the fixed mold drawer can be demoulded at the same time when the mold is opened, thereby improving production efficiency.
  • the sliding block is arranged vertically to the opening plate, and the lever is arranged obliquely, thereby improving production efficiency.
  • a wedge-shaped surface is arranged on the sliding block, and a corresponding surface is arranged on the fixed mold drawer, so that the sliding block can not only drive the fixed mold drawer to slide, but also lock the fixed mold drawer after the mold is closed, thereby improving production efficiency.
  • An elastic pad is arranged on the sliding block, and a fixed mold spring is arranged on the fixed mold drawer, which is also conducive to improving production efficiency.
  • FIG. 1 is a schematic structural diagram of a first embodiment of the combined demoulding mechanism.
  • FIG. 2 is an enlarged view of point A in FIG. 1 .
  • a fixed mold drawer 4 is slidably provided on the fixed mold base 1, and a movable mold drawer 5 is slidably provided on the movable mold base 2.
  • the fixed mold drawer 4 is located at the lower left of the fixed mold insert 1b and at the upper left of the movable mold insert 2b.
  • the upper right side of the fixed mold drawer 4 is in contact with the fixed mold insert 1b, and the lower right side of the fixed mold drawer 4 is in contact with the movable mold insert 2b.
  • the movable mold drawer block 5 is located on the right side of the positioning drawer block.
  • the movable mold plate 2a is provided with a drawer hole 2a1
  • the movable mold insert 2b is provided with a drawer hole 2b1.
  • a vertically arranged guide column 10 is fixed on the bottom plate 8, and the guide column 10 is passed through the connecting plate 9 and the ejection plate 7, and the connecting plate 9 and the ejection plate 7 can move vertically along the guide column 10.
  • a vertically arranged ejector pin 11 is fixed on the ejector plate 7. The ejector pin 11 passes through the opening plate 6 and the movable mold seat 2 and is fixed to the ejector block 12. The top surface of the ejector block 12 is at the mold cavity 3.
  • the opening plate 6 Under the action of the parting spring, the opening plate 6 has a tendency to move away from the movable mold plate 2a.
  • a limit bolt 21 is provided between the baffle plate 6 and the movable plate 2a.
  • the rod of the limit bolt 21 passes through the baffle plate 6 and is threadedly connected to the movable plate 2a.
  • the limit bolt 21 is not tightened, and there is a limit spacing between the head of the limit bolt 21 and the baffle plate 6.
  • the parting spring acts on the baffle plate 6 to move the baffle plate 6 downward, and the baffle plate 6 abuts against the head of the limit bolt 21 to achieve limit.
  • Several support columns 20 are fixed between the bottom plate 8 and the baffle plate 6, and the support columns 20 are penetrated through the connecting plate 9 and the ejector plate 7.
  • an inclined fixed mold slide groove 1a1 is provided on the left side of the fixed mold plate 1a.
  • the fixed mold slide groove 1a1 is inclined toward the movable mold base 2 from right to left.
  • the inclination angle of the fixed mold slide groove 1a1 is generally greater than 25°.
  • the upper end of the fixed mold drawer 4 is embedded in the fixed mold slide groove 1a1 and can be moved along the fixed mold slide groove 1a1. Sliding.
  • the front and rear sides of the fixed mold drawer 4 are provided with protruding slide bars, and a baffle bar located below the slide bar is fixed in the fixed mold slide groove 1a1, and the slide bar can slide on the baffle bar.
  • the sliding block 13 slides in the direction away from the fixed die seat 1, the lever 14 can drive the fixed die drawer 4 to slide in the direction away from the cavity 3 on the fixed die seat 1.
  • the sliding block 13 is perpendicular to the opening plate 6.
  • the lever 14 is tilted to the side away from the cavity 3 along the direction from the sliding block 13 to the fixed die drawer 4.
  • the sliding block 13 is roughly in the shape of a rectangular parallelepiped, and the lever 14 is in the shape of a cylindrical rod.
  • the lever 14 is fixedly connected to the sliding block 13 by a fixing bolt 15.
  • the sliding block 13 is provided with an inclined through hole 13a.
  • the hole wall surface of the through hole 13a is provided with a convex ring 13b.
  • the lever 14 is inserted into the through hole 13a and abuts against the upper end of the convex ring 13b.
  • the rod of the fixing bolt 15 passes through the convex ring 13b and is threadedly connected to the lever 14.
  • the head of the fixing bolt 15 abuts against the lower end of the convex ring 13b.
  • the fixed die block 4 is provided with a socket 4b corresponding to the lever 14, and the top end of the lever 14 is inserted into the socket 4b and can slide.
  • the opening plate 6 is provided with a groove 6a, and the bottom end of the sliding block 13 is embedded in the groove 6a and fixedly connected with the opening plate 6 by installing bolts.
  • a positioning recess 4a is provided on the side of the fixed mold drawer 4 facing the sliding block 13.
  • the top of the sliding block 13 is inserted into the positioning recess 4a.
  • An inclined wedge surface 13c is provided between the top surface of the sliding block 13 and the side of the sliding block 13 close to the cavity 3.
  • the side of the positioning recess 4a has a corresponding surface 4c corresponding to the wedge surface 13c, and the corresponding surface 4c is also inclined.
  • the side of the sliding block 13 opposite to the wedge surface 13c has an inclined inclined surface 13d.
  • the inclined surface 13d and the wedge surface 13c are respectively provided on the sliding block 13.
  • the elastic pad 16 on the top surface of the sliding block 13 elastically rests on the bottom surface of the positioning recess 4a, the elastic pad 16 on the wedge surface 13c elastically rests on the corresponding surface 4c, and the elastic pad 16 on the inclined surface 13d elastically rests on the limiting surface 2a3.
  • the top surface, wedge surface 13c and inclined surface 13d of the sliding block 13 are all provided with embedding grooves, and the elastic pad 16 is embedded in the embedding grooves and fixed by screws.
  • the elastic pad 16 is a rubber pad and has elasticity.
  • a fixed mold spring 17 is arranged on the side of the fixed mold drawer 4 close to the cavity 3.
  • the fixed mold spring 17 elastically abuts between the fixed mold drawer 4 and the fixed mold seat 1.
  • a fixed mounting hole is arranged on the side of the fixed mold drawer 4 facing the fixed mold insert 1b.
  • the fixed mold spring 17 is inserted into the fixed mounting hole, and one end of the fixed mold spring 17 abuts on the bottom surface of the fixed mounting hole, and the other end of the fixed mold spring 17 abuts on the fixed mold insert 1b.
  • the opening plate 6 is connected to the movable mold drawing block 5, and the opening plate 6 can drive the sliding block 13 to move in the direction away from the fixed mold seat 1 and drive the movable mold drawing block 5 to move in the direction away from the fixed mold seat 1.
  • the top of the movable mold drawing block 5 is tilted toward the side of the sliding block 13, and the bottom of the movable mold drawing block 5 is fixed with a movable mold slide 18, and the cross section of the movable mold slide 18 is inverted T-shaped.
  • a triangular block 19 is fixedly connected to the opening plate, and the top of the triangular block 19 is inserted into the extraction hole 1 2a1 of the movable mold plate 2a.
  • a groove 2 6b is provided on the opening plate 6, and the triangular block 19 is embedded in the groove 2 6b and is fixedly connected to the opening plate 6 by installing bolts 2.
  • the top surface of the triangular block 19 has a movable mold slide 19a, and the cross section of the movable mold slide 19a is inverted T-shaped.
  • the movable mold slide 19a is tilted downward along the direction from right to left.
  • the movable mold slide 18 is embedded in the movable mold slide 19a and can slide along the movable mold slide 19a.
  • the opening plate 6 moves downward under the action of the parting spring force, and the opening plate 6 drives the sliding block 13 and the triangular block 19 to move downward at the same time.
  • the lever 14 drives the fixed mold block 4 to slide to the left, and the triangular block 19 drives the movable mold block 5 to slide downward through the movable mold slide bar 18, that is, the fixed mold block 4 and the movable mold block 5 are simultaneously away from the cavity 3 to achieve simultaneous demolding, and then the fixed mold base 1 and the movable mold base 2 are separated, the ejector plate 7 moves upward, and the ejector rod 11 lifts the product to make the product separate from the movable mold insert 2b.
  • the fixed mold base 1 and the movable mold base 2 are closed and the ejector rod 11 is reset, and then the opening plate 6 is moved upward, thereby simultaneously driving the fixed mold block 4 and the movable mold block 5 close to the cavity 3 to achieve simultaneous mold closing.
  • This can reduce the mold movement, shorten the production cycle of a single product, and thus improve production efficiency.
  • the sliding block 13 is set in the movable mold base 2, and the lever 14 is inserted in the fixed mold block 4, so that the setting of the sliding block 13 and the lever 14 does not require additional mold volume.

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

Abstract

本发明提供了一种注塑模具的组合脱模机构，属于模具技术领域。它解决了现有组合脱模机构生产效率低等问题。本注塑模具的组合脱模机构，注塑模具包括定模座和动模座，定模座上滑动设置有定模抽块，动模座上滑动设置有动模抽块，组合脱模机构包括开档板，动模座位于定模座和开档板之间，开档板与动模抽块连接，动模座中穿设有可滑动的滑动块，滑动块靠近定模座的一端上固定有插入到定模抽块中的拨杆，滑动块远离定模座的一端与开档板连接，且开档板能够同时驱动滑动块和动模抽块向远离定模座的方向滑动，当滑动块向远离定模座的方向滑动时，拨杆能够驱动定模抽块在定模座上向远离型腔的方向滑动。本组合脱模机构提高了生产效率。

Description

一种注塑模具的组合脱模机构 技术领域
本发明属于模具技术领域，涉及一种注塑模具的组合脱模机构。
背景技术
随着汽车工业的发展，汽车造型不在单一，汽车灯罩的造型也不断多样化。汽车灯罩大部分都是通过模具注塑成型，注塑模具包括定模座和动模座，定模座和动模座之间具有型腔，灯罩在型腔中成型。一般定模座用于成型灯罩外侧面，动模座用于成型灯罩内侧面。在灯罩注塑成型后需要脱模将灯罩取出，为了使灯罩处的倒扣结构或者特殊结构能够顺利脱出，一般会在模具与产品对应的位置上设置抽块。脱模时先使抽块脱离倒扣结构或者特殊结构，再使定模座与动模座分离，将成型的灯罩取出。
对于与灯罩内侧面结构对应的抽块，一般设置在动模座中，称为动模抽块或者内抽芯。如中国专利文献公开的一种带动模弹板分离内抽芯的汽车前大灯注塑模具[公告号：CN208375878U]，包括动模底板、固定在动模底板上的顶针板和模脚、固定在模脚上的定模垫板以及与动模垫板活动连接的动模弹板。动模弹板上设有水平滑槽和倾斜滑槽，水平滑槽内设有抽芯座，倾斜滑槽内设有抽芯，抽芯座和抽芯活动连接。动模弹板上设有定模弹簧，可使动模垫板和动模弹板分离。其中的抽芯就是动模抽块。在产品注塑成型完成后，模具开模时，定模弹簧弹出带动动模垫板运动，使动模弹板与动模垫板分离，抽芯座固定在动模垫板上，与动模垫板一起后退，抽芯座又带动抽芯沿着倾斜滑槽向斜上方运动，最终使抽芯脱离产品。
对于与灯罩外侧面结构对应的抽块，一般设置在定模座中，称 为定模抽块。为了实现定模抽块的脱模，一般设置独立的油缸来驱动。脱模时需要先移开动模抽块，再将动模座和定模座分开，最后通过油缸驱动定模抽块移出；合模时需要先将定模抽块移入，然后动模座和定模座合拢，再将动模抽块移入。模具动作复杂，且单品生产节拍长，生产效率低。
发明内容
本发明的目的是针对现有技术存在的上述问题，提出了一种注塑模具的组合脱模机构，解决了现有组合脱模机构生产效率低的技术问题。
本发明的目的可通过下列技术方案来实现：
一种注塑模具的组合脱模机构，注塑模具包括定模座和动模座，所述定模座与动模座之间具有型腔，所述定模座上滑动设置有定模抽块，所述动模座上滑动设置有动模抽块，组合脱模机构包括开档板，所述动模座位于定模座和开档板之间，所述开档板与动模抽块连接，其特征在于，所述动模座中穿设有可滑动的滑动块，所述滑动块靠近定模座的一端上固定有插入到定模抽块中的拨杆，所述滑动块远离定模座的一端与开档板连接，且开档板能够同时驱动滑动块和动模抽块向远离定模座的方向滑动，当滑动块向远离定模座的方向滑动时，所述拨杆能够驱动定模抽块在定模座上向远离型腔的方向滑动。
开模时，开档板向远离动模座的方向移动，从而同时驱动滑动块和动模抽块向远离定模座的方向移动，此时滑动块上的拨杆驱动定模抽块在定模座上向远离型腔的方向滑动，即定模抽块和动模抽块同时远离型腔实现同时脱模，然后定模座和动模座分离使产品脱出。合模时，先将定模座和动模座合拢，然后使开档板向靠近动模座的方向移动，从而同时驱动滑动块和动模抽块向靠近定模座的方向移动，此时滑动块上的拨杆驱动定模抽块在定模 座上向靠近型腔的方向滑动，即定模抽块和动模抽块同时靠近型腔实现同时合模。这样可以减少模具动作，使单品生产节拍减短，从而提高生产效率。而且滑动块设置在动模座中，拨杆插设在定模抽块中，这样滑动块和拨杆的设置不需要额外增加模具体积。
在上述的注塑模具的组合脱模机构中，所述滑动块与开档板相垂直，且滑动块与开档板固定，沿着滑动块到定模抽块的方向所述拨杆向远离型腔的一侧倾斜设置。
滑动块与开档板垂直设置可以减少滑动块在动模座中滑动时的滑动摩擦，使滑动块滑动顺畅。而且滑动块与开档板相垂直且拨杆朝远离型腔的一侧倾斜设置相配合后，不仅能够实现滑动块滑动驱动定模抽块滑动，而且能够使滑动块在最短的滑动距离中驱动定模抽块远离和靠近型腔，有利于提高工作效率。
在上述的注塑模具的组合脱模机构中，注塑模具合模后所述滑动块靠近定模座的一端抵靠在定模抽块上使定模抽块锁定。
开模时，滑动块向远离定模座的方向滑动，滑动块与定模抽块分离，定模抽块的锁定解除，同时通过拨杆驱动定模抽块脱离型腔位置，实现脱模；合模时，滑动块向靠近定模座的方向移动，通过拨杆驱动定模抽块靠近型腔位置，直到滑动块抵靠在定模抽块上将定模抽块锁定在定模座上。滑动块不仅具有驱动定模抽块实现脱模和合模的作用，还具有在合模后将定模抽块锁定的作用，这样只需设置滑动块和拨杆就能够实现定模抽块的脱模和合模操作且合模后即完成锁定，无需额外设置锁定机构和锁定步骤，有利于减少模具体积和提高工作效率。
在上述的注塑模具的组合脱模机构中，所述定模抽块朝向滑动块的侧面上开设有定位凹口，所述滑动块靠近定模座的一端插入到定位凹口中，所述滑动块靠近定模座的端面与滑动块靠近型腔的侧面之间设置有倾斜的楔形面，所述定位凹口的侧面具有与楔形面对应的对应面。
滑动块靠近定模座的一端插入到定位凹口中，使滑动块与定模滑块通过定位凹口限位，便于滑动块与定模抽块定位安装。倾斜的楔形面和对应面的设置可以减少滑动块滑动时的干涉，使滑动块顺利带动定模抽块脱模，有利于保证生产效率。
在上述的注塑模具的组合脱模机构中，注塑模具合模后所述滑动块靠近定模座的端面抵靠在定位凹口的底面上，所述楔形面抵靠在对应面上。
楔形面与对应面的设置既能够保证滑动块能够在开模时脱离定模抽块，使定模抽块顺利完成解除锁定和脱模，保证生产效率，又能够在合模时形成楔紧作用，使定模抽块保持稳定，有利于提高产品注塑质量。
在上述的注塑模具的组合脱模机构中，所述滑动块靠近定模座的端面上和楔形面上均设置有弹性垫，注塑模具合模后所述弹性垫弹性抵靠在定模抽块上。
弹性垫具有弹性，不仅在脱模时能够对滑动块的滑动起到助力作用，使动模抽块和定模抽块快速完成脱模，有利于提高生产效率，而且在合模时具有缓冲作用，减少滑动块与定模抽块之间的硬性碰撞，使组合脱模机构工作稳定并延伸使用寿命。
在上述的注塑模具的组合脱模机构中，所述定模抽块靠近型腔的侧面上设置有定模弹簧，注塑模具合模后定模弹簧弹性抵靠在定模抽块与定模座之间。
定模弹簧具有弹性，不仅在脱模时能够对定模抽块的滑动起到助力作用，使定模抽块和动模抽块快速完成脱模，有利于提高生产效率，而且在合模时具有缓冲作用，减少定模抽块与定模座之间的硬性碰撞，使组合脱模机构工作稳定并延伸使用寿命。
在上述的注塑模具的组合脱模机构中，所述拨杆通过固定螺栓固定连接在滑动块中，所述滑动块上开设有倾斜的通孔，所述通孔的孔壁面上具有凸环，所述拨杆插入到通孔中并抵靠在凸环 的一端上，所述固定螺栓的杆部穿过凸环后与拨杆螺纹连接，所述固定螺栓的头部抵靠在凸环的另一端上。通过固定螺栓能够实现拨杆的连接和拆卸，方便对磨损或者损坏的拨杆进行更换维修，保证拨杆工作的有效性，有利于保证工作效率。
在上述的注塑模具的组合脱模机构中，所述开档板上具有凹槽一，所述滑动块远离定模座的一端嵌入到凹槽一。凹槽一具有定位作用，方便滑动块与开档板的定位安装。
在上述的注塑模具的组合脱模机构中，所述滑动块呈长方体形，所述拨杆呈圆柱状。滑动块呈长方体形具有周向定位作用，使滑动块滑动时不会发生转动，使滑动块工作稳定。拨杆呈圆柱状则能够减少与定模抽块之间的滑动摩擦和滑动干涉，使定模抽块脱模顺利进行。
与现有技术相比，本发明具有以下优点：
在动模座中设置可滑动的滑动块，滑动块的一端与开档板连接，滑动块的另一端设置插入到动模抽块内的拨杆，通过开档板驱动滑动块和动模抽块，滑动块则通过拨杆带动定模抽块，从而实现在开模时同时对动模抽块和定模抽块进行脱模，提高了生产效率。滑动块与开档板垂直设置，拨杆倾斜设置，提高了生产效率。滑动块上设置楔形面，定模抽块上设置对应面，使滑动块既能驱动定模抽块滑动又能够在合模后锁定定模抽块，提高了生产效率。滑动块上设置弹性垫，定模抽块上设置定模弹簧，也有利于提高生产效率。
附图说明
图1是本组合脱模机构实施例一的结构示意图。
图2是图1中A处的放大图。
图3是图1中B-B处的局部剖视图。
图4是图1中C-C处的局部剖视图。
图5是本组合脱模机构实施例一中定模抽块与滑动块的立体图。
图中，1、定模座；1a、定模板；1a1、定模滑槽；1b、定模镶块；2、动模座；2a、动模板；2a1、抽孔一；2a2、滑动孔；2a3、限位面；2b、动模镶块；2b1、抽孔二；3、型腔；4、定模抽块；4a、定位凹口；4b、插孔；4c、对应面；5、动模抽块；6、开档板；6a、凹槽一；6b、凹槽二；7、顶出板；8、底板；9、连接板；10、导向柱；11、顶杆；12、顶块；13、滑动块；13a、通孔；13b、凸环；13c、楔形面；13d、倾斜面；14、拨杆；15、固定螺栓；16、弹性垫；17、定模弹簧；18、动模滑条；19、三角块；19a、动模滑槽；20、支撑柱；21、限位螺栓。
具体实施方式
以下是本发明的具体实施例并结合附图，对本发明的技术方案作进一步的描述，但本发明并不限于这些实施例。
实施例一
如图1所示，注塑模具包括定模座1和动模座2，定模座1与动模座2之间具有型腔3。定模座1包括定模板1a和定模镶块1b，定模板1a的底表面上开设有容纳腔，定模镶块1b固定在容纳腔中。动模座2位于定模座1的下方，动模座2包括动模板2a和动模镶块2b，动模板2a的顶表面上开设有安装腔，动模镶块2b固定在安装腔中。定模座1上滑动设置有定模抽块4，动模座2上滑动设置有动模抽块5。定模抽块4位于定模镶块1b的左下方，且位于动模镶块2b的左上方，定模抽块4的右上侧与定模镶块1b贴靠，定模抽块4的右下侧与动模镶块2b贴靠。动模抽块5位于定位抽块的右侧，动模板2a开设有抽孔一2a1，动模镶块2b开设有抽孔二2b1，抽孔一2a1和抽孔二2b1组成抽孔，动模抽块5穿设在轴孔中。定模镶块1b、定模抽块4、动模抽块5和 动模镶块2b围成型腔3，塑料在型腔3中注塑成型汽车灯罩。
如图1所示，一种注塑模具的组合脱模机构，包括开档板6，开档板6水平设置且动模座2位于定模座1和开档板6之间，即开档板6位于动模板2a的下方。开档板6的下方还设置有底板8，底板8与开档板6之间设置有顶出板7，底板8与顶出板7之间还设置有连接板9，连接板9与顶出板7固定连接，开档板6与底板8固定连接。底板8上固定有竖直设置的导向柱10，导向柱10穿设于连接板9和顶出板7，连接板9和顶出板7可沿导向柱10竖直移动。导向柱10有两个并左右分布在底板8上，图中仅示出右侧的导向柱10。顶出板7上固定有竖直设置的顶杆11，顶杆11穿过开档板6和动模座2后与顶块12固定，顶块12的顶面在型腔3处。开模时当动模座2和定模座1分开后，顶出板7上升并带动顶杆11上升，顶块12将产品从动模镶块2b上顶出，使产品顺利脱模。顶杆11设置有数根，且分散设置在动模座2中，有利于产品顺利取出，图中仅示出一根顶杆11和两个顶块12。开档板6与动模板2a之间设置有分型弹簧[图中未示出]，分型弹簧有两个并在开档板6左右两端上，分型弹簧作用下开档板6上使开档板6具有远离动模板2a的趋势。开档板6与动模板2a之间设置有限位螺栓21，限位螺栓21的杆部穿过开档板6后与动模板2a螺纹连接，限位螺栓21不拧紧，且限位螺栓21的头部与开档板6之间具有限位间距。开模时，分型弹簧作用在开档板6上使开档板6向下运动，开档板6抵靠在限位螺栓21的头部实现限位。底板8与开档板6之间固定有数个支撑柱20，支撑柱20穿设于连接板9和顶出板7。
如图1、图2、图3和图5所示，定模板1a的左侧部上开设有倾斜设置的定模滑槽1a1，沿着从右到左的方向定模滑槽1a1朝动模座2倾斜设置，定模滑槽1a1的倾斜角度一般大于25°。定模抽块4的上端嵌入到定模滑槽1a1中，并能够沿定模滑槽1a1 滑动。定模抽块4的前后两侧具有凸出的滑条，定模滑槽1a1中固定有位于滑条下方的挡条，滑条能够在挡条上滑动。动模座2中穿设有可滑动的滑动块13，滑动块13靠近定模座1的一端上固定有插入到定模抽块4中的拨杆14，滑动块13远离定模座1的一端与开档板6固定。滑动块13靠近定模座1的一端为滑动块13的顶端，滑动块13靠近定模座1的端面为滑动块13的顶端面；滑动块13远离定模座1的一端为滑动块13的底端，滑动块13远离定模座1的端面为滑动块13的底端面。开档板6能够驱动滑动块13向远离定模座1的方向移动，当滑动块13向远离定模座1的方向滑动时，拨杆14能够驱动定模抽块4在定模座1上向远离型腔3的方向滑动。滑动块13与开档板6相垂直，沿着滑动块13到定模抽块4的方向拨杆14向远离型腔3的一侧倾斜设置。滑动块13大致呈长方体形，拨杆14呈圆柱杆状。拨杆14通过固定螺栓15固定连接在滑动块13中，滑动块13上开设有倾斜的通孔13a，通孔13a的孔壁面上具有凸环13b，拨杆14插入到通孔13a中并抵靠在凸环13b的上端上，固定螺栓15的杆部穿过凸环13b后与拨杆14螺纹连接，固定螺栓15的头部抵靠在凸环13b的下端上。定模抽块4上开设有与拨杆14对应的插孔4b，拨杆14的顶端插入到插孔4b中并能够滑动。开档板6上具有凹槽一6a，滑动块13的底端嵌入到凹槽一6a中并通过安装螺栓一与开档板6固定连接。
注塑模具合模后，滑动块13的顶端抵靠在定模抽块4上使定模抽块4锁定。定模抽块4朝向滑动块13的侧面上开设有定位凹口4a，滑动块13的顶端插入到定位凹口4a中，滑动块13的顶端面与滑动块13靠近型腔3的侧面之间设置有倾斜的楔形面13c，定位凹口4a的侧面具有与楔形面13c对应的对应面4c，对应面4c也倾斜设置。滑动块13上与楔形面13c相背的侧面上具有倾斜的倾斜面13d，倾斜面13d和楔形面13c分别设置在滑动 块13顶端的左右两侧。倾斜面13d与楔形面13c的倾斜角度以及面积不同，使滑动块13的左右侧便于区别。动模板2a上开设有与滑动块13对应设置的滑动孔2a2，滑动孔2a2大致呈长方体形，滑动孔2a2顶端的孔壁面上具有与倾斜面13d对应的限位面2a3，限位面2a3倾斜设置。滑动块13的顶端面、楔形面13c和倾斜面13d上均设置有弹性垫16，注塑模具合模后，滑动块13顶面上的弹性垫16弹性抵靠在定位凹口4a的底面上，楔形面13c上的弹性垫16弹性抵靠在对应面4c上，倾斜面13d上的弹性垫16弹性抵靠在限位面2a3。滑动块13的顶端面、楔形面13c和倾斜面13d上均开设有嵌槽，弹性垫16嵌入到嵌槽中并通过螺钉固定。弹性垫16为橡胶垫，具有弹性。定模抽块4靠近型腔3的侧面上设置有定模弹簧17，注塑模具合模后定模弹簧17弹性抵靠在定模抽块4与定模座1之间。定模抽块4上对着定模镶块1b的侧面上开设有定装孔，定模弹簧17插入到定装孔中，定模弹簧17的一端抵靠在定装孔的底面上，定模弹簧17的另一端抵靠在定模镶块1b上。定模弹簧17有两个并前后并排设置。
如图1和图4所示，开档板6与动模抽块5连接，开档板6能够驱动滑动块13向远离定模座1的方向移动的同时驱动动模抽块5向远离定模座1的方向移动。动模抽块5的顶端向滑动块13一侧倾斜设置，动模抽块5的底端固定有动模滑条18，动模滑条18的截面呈倒T形。开挡板上固定连接有三角块19，三角块19顶部插入到动模板2a的抽孔一2a1中。开档板6上开设凹槽二6b，三角块19嵌入到凹槽二6b中并通过安装螺栓二与开档板6固定连接。三角块19的顶面具有动模滑槽19a，动模滑槽19a的截面呈倒T形，沿着从右到左的方向动模滑槽19a朝下倾斜设置。动模滑条18嵌入到动模滑槽19a中并能够沿动模滑槽19a滑动。
开模时，在分型弹簧弹力的作用下，开档板6向下移动，开档板6同时带动滑动块13和三角块19向下运动，滑动块13通过 拨杆14驱动定模抽块4向左滑动，三角块19通过动模滑条18驱动动模抽块5向下滑动，即定模抽块4和动模抽块5同时远离型腔3实现同时脱模，然后定模座1和动模座2分离，顶出板7向上移动，顶杆11将产品顶起，使产品脱离动模镶块2b。合模时，将定模座1和动模座2合拢并使顶杆11复位，然后使开档板6向上移动，从而同时驱动定模抽块4和动模抽块5靠近型腔3实现同时合模。这样可以减少模具动作，使单品生产节拍减短，从而提高生产效率。而且滑动块13设置在动模座2中，拨杆14插设在定模抽块4中，这样滑动块13和拨杆14的设置不需要额外增加模具体积。
实施例二
滑动块13上没有设置弹性垫16，注塑模具合模后，滑动块13的顶端面抵靠在定位凹口4a的底面上，楔形面13c抵靠在对应面4c上，且倾斜面13d抵靠在限位面2a3上。其他结构与实施例一相同。
实施例三
拨杆14插入到通孔13a中并通过过盈配合固定，或者拨杆14一体成型在滑动块13上。其他结构与实施例一相同。
实施例四
滑动块13相对于开档板6向右倾斜设置，开挡板上固定有倾斜块，倾斜块与滑动块13的底端之间通过呈倒T形的滑动槽和滑动条配合形成连接，类似动模抽块5与三角块19之间的结构。拨杆14与开档板6相垂直，拨杆14的顶端插入定模抽块4中。开档板6向下移动后，倾斜块带动滑动块13倾斜向下滑动，即滑动块13向下且向左滑动，使得拨杆14向下且向左移动，这样拨杆14就能够驱动定模抽块4向左滑动从而远离型腔3实现脱模。
本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明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，但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。

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  1. 一种注塑模具的组合脱模机构，注塑模具包括定模座(1)和动模座(2)，所述定模座(1)与动模座(2)之间具有型腔(3)，所述定模座(1)上滑动设置有定模抽块(4)，所述动模座(2)上滑动设置有动模抽块(5)，组合脱模机构包括开档板(6)，所述动模座(2)位于定模座(1)和开档板(6)之间，所述开档板(6)与动模抽块(5)连接，其特征在于，所述动模座(2)中穿设有可滑动的滑动块(13)，所述滑动块(13)靠近定模座(1)的一端上固定有插入到定模抽块(4)中的拨杆(14)，所述滑动块(13)远离定模座(1)的一端与开档板(6)连接，且开档板(6)能够同时驱动滑动块(13)和动模抽块(5)向远离定模座(1)的方向滑动，当滑动块(13)向远离定模座(1)的方向滑动时，所述拨杆(14)能够驱动定模抽块(4)在定模座(1)上向远离型腔(3)的方向滑动。
  2. 根据权利要求1所述的注塑模具的组合脱模机构，其特征在于，所述滑动块(13)与开档板(6)相垂直，且滑动块(13)与开档板(6)固定，沿着滑动块(13)到定模抽块(4)的方向所述拨杆(14)向远离型腔(3)的一侧倾斜设置。
  3. 根据权利要求1或2所述的注塑模具的组合脱模机构，其特征在于，注塑模具合模后所述滑动块(13)靠近定模座(1)的一端抵靠在定模抽块(4)上使定模抽块(4)锁定。
  4. 根据权利要求3所述的注塑模具的组合脱模机构，其特征在于，所述定模抽块(4)朝向滑动块(13)的侧面上开设有定位凹口(4a)，所述滑动块(13)靠近定模座(1)的一端插入到定位凹口(4a)中，所述滑动块(13)靠近定模座(1)的端面与滑动块(13)靠近型腔(3)的侧面之间设置有倾斜的楔形面(13c)，所述定位凹口(4a)的侧面具有与楔形面(13c)对应的对应面(4c)。
  5. 根据权利要求4所述的注塑模具的组合脱模机构，其特征在于，注塑模具合模后所述滑动块(13)靠近定模座(1)的端面 抵靠在定位凹口(4a)的底面上，所述楔形面(13c)抵靠在对应面(4c)上。
  6. 根据权利要求4所述的注塑模具的组合脱模机构，其特征在于，所述滑动块(13)靠近定模座(1)的端面上和楔形面(13c)上均设置有弹性垫(16)，注塑模具合模后所述弹性垫(16)弹性抵靠在定模抽块(4)上。
  7. 根据权利要求1或2所述的注塑模具的组合脱模机构，其特征在于，所述定模抽块(4)靠近型腔(3)的侧面上设置有定模弹簧(17)，注塑模具合模后定模弹簧(17)弹性抵靠在定模抽块(4)与定模座(1)之间。
  8. 根据权利要求1或2所述的注塑模具的组合脱模机构，其特征在于，所述拨杆(14)通过固定螺栓(15)固定连接在滑动块(13)中，所述滑动块(13)上开设有倾斜的通孔(13a)，所述通孔(13a)的孔壁面上具有凸环(13b)，所述拨杆(14)插入到通孔(13a)中并抵靠在凸环(13b)的一端上，所述固定螺栓(15)的杆部穿过凸环(13b)后与拨杆(14)螺纹连接，所述固定螺栓(15)的头部抵靠在凸环(13b)的另一端上。
  9. 根据权利要求2所述的注塑模具的组合脱模机构，其特征在于，所述开档板(6)上具有凹槽一(6a)，所述滑动块(13)远离定模座(1)的一端嵌入到凹槽一(6a)。
  10. 根据权利要求2所述的注塑模具的组合脱模机构，其特征在于，所述滑动块(13)呈长方体形，所述拨杆(14)呈圆柱状。
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