WO2019052260A1 - 一种防止脱模收缩的注塑模具 - Google Patents

一种防止脱模收缩的注塑模具 Download PDF

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Publication number
WO2019052260A1
WO2019052260A1 PCT/CN2018/093248 CN2018093248W WO2019052260A1 WO 2019052260 A1 WO2019052260 A1 WO 2019052260A1 CN 2018093248 W CN2018093248 W CN 2018093248W WO 2019052260 A1 WO2019052260 A1 WO 2019052260A1
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Prior art keywords
plate
template
disposed
upper template
lower template
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PCT/CN2018/093248
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English (en)
French (fr)
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丁勇军
蒋永刚
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丁勇军
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Publication of WO2019052260A1 publication Critical patent/WO2019052260A1/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
    • 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
    • B29C45/2602—Mould construction elements
    • 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
    • B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • 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

Definitions

  • the invention belongs to the technical field of injection molds, and particularly relates to an injection mold for preventing mold release shrinkage.
  • Mold is a variety of molds and tools used in industrial production for injection molding, blow molding, extrusion, die casting or forging, smelting, stamping, etc., in short, mold is a tool for making shaped articles.
  • This kind of tool is composed of various parts. Different molds are made up of different parts. It mainly realizes the processing of the shape of the object through the change of the physical state of the formed material. It is called the title of "mother of industry" under the action of external force.
  • the mold has a specific contour or a cavity shape.
  • the contour shape of the blade can be used to separate the blank according to the shape of the contour.
  • the shape of the cavity can be used to obtain the corresponding three-dimensional shape of the blank.
  • the mold generally includes a movable mold and a fixed mold.
  • the parts can be divided into two parts. When the parts are separated, the parts are taken out and the blanks are injected into the mold cavity when the mold is closed.
  • the mold is a precision tool, the shape is complex, and the expansion force of the blank is received, and the structural strength, rigidity, surface hardness and surface are applied. Roughness and processing accuracy have high requirements.
  • the development level of mold production is one of the important signs of the level of mechanical manufacturing.
  • the mold In addition to the mold itself, the mold also needs the mold base, the mold base and the core to cause the device to eject the device.
  • These components are generally made into a universal type. Mold companies need to be more sophisticated. They must determine product positioning and market positioning according to market demand, technology, capital, equipment and other conditions. These practices are especially worth learning and learning from small mold companies. The strength gradually forms its own technological advantages and product advantages. Therefore, China's mold enterprises must actively strive to learn from foreign countries. Experience into the business in order to better their future development.
  • An object of the present invention is to provide an injection mold for preventing mold release shrinkage, which solves the prior art injection mold proposed in the above background art.
  • the mold release opening is easily contracted, and the mold is sometimes not tightly sealed.
  • the injection molding fails, and when the mold is placed, it is easy to be messed up, causing inconvenience to the user.
  • an injection mold for preventing mold release shrinkage comprising an upper die plate, a lower die plate and a positioning ring, wherein a pressing plate is disposed at an intermediate position of an upper surface of the upper die plate, A horizontal groove is disposed above the pressing plate, and an upper template connecting rod is disposed on a right side of the pressing plate, and an inclined groove is disposed on a left side of the pressing plate, and a right side of the pressing plate is disposed below An upper template pin hole is disposed, a front surface of the upper template is provided with a stopper, a left outer surface of the upper template is provided with a convex groove, and a concave panel is disposed at an intermediate position of the upper surface of the lower template.
  • a lower template connecting rod is disposed above the left side of the concave panel
  • a horizontal convex block is disposed above the concave panel
  • a lower template pin hole is disposed above the right side of the concave panel
  • the right side of the concave panel is disposed
  • There is a diagonal protrusion a left outer surface of the concave panel is provided with a groove
  • the positioning ring is installed at a middle position of the back of the upper template
  • a nozzle is arranged below the positioning ring
  • the right side of the material An auxiliary injection hole is disposed above
  • a cup head screw is disposed below the right side of the auxiliary injection hole
  • a support head is disposed at a lower left side of the cup head screw near a lower side of the auxiliary injection hole
  • a back needle is disposed at a lower side of the left side of the support head.
  • a returning sling is disposed on both sides of the bottom end of the returning needle, and a limited position nail is disposed on a lower left side of the returning slingshot, and a top stick hole is disposed on a left side of the limiting nail, and a left side of the top stick hole is disposed a needle plate is disposed above, a needle plate is disposed above the needle plate, a needle is disposed inside the needle plate, and a spacer is disposed on a left side of the needle plate, and the left side of the mouthpiece
  • a row position plate is disposed under the side, a support rod is disposed on a left side of the row position plate, and a tie rod is disposed at a lower side of the left side of the support rod.
  • the upper template connecting rod and the upper template pin hole are respectively provided with four, and the lower template connecting rod and the lower template bolt hole are respectively provided with four, four corners of the upper template and the lower template.
  • the four upper template connecting rods and the four lower template pin holes are fixedly connected to the four lower template connecting rods and the four upper template pin holes.
  • the oblique groove and the lateral groove are both provided, and the horizontal and oblique protrusions are respectively provided with two, and the outer surfaces of the upper and lower templates pass through the two oblique grooves and The two oblique bumps are fixedly connected to the two lateral grooves and the two lateral projections.
  • the convex groove and the groove are both provided, and both side surfaces of the upper template and the lower template are slidably connected by two convex grooves and two grooves.
  • the strut and the row board are provided with two, and the strut and the row board are fixedly connected.
  • the ejector pins are provided in two, and the two ejector pins are distributed on both sides of the bottom end of the return needle.
  • the invention has the advantages that the structure of the invention is scientific and reasonable, safe and convenient to use, and four upper template connecting rods and four upper template pin holes are arranged on the upper template, and the lower template is provided with Four lower template connecting rods and four lower template pin holes, four lower template connecting rods corresponding to four upper template pin holes, and four upper template connecting rods corresponding to four lower template pin holes for upper template and lower
  • the four corners of the template are more stable, two oblique grooves and lateral grooves are arranged on the outer surface of the upper template, and two oblique grooves and two oblique protrusions are arranged on the outer surface of the lower template.
  • the outer surface of the upper template and the lower template are fixed more stably.
  • Two struts and a row board are arranged inside the upper template.
  • the two struts and the row board cooperate with each other to uniformly spread on the concave panel.
  • Injection molding a back needle is arranged inside the lower template, and the return needle cooperates with two back needle slings during work to eject the plastic on the mold to improve the problem of mold release shrinkage of the existing injection mold, and is disposed on both sides of the upper template.
  • There are two The groove is provided with two grooves on both sides of the lower template.
  • Figure 1 is a schematic view showing the structure of an upper template of the present invention
  • FIG. 2 is a schematic structural view of a lower template of the present invention.
  • Figure 3 is a schematic front view of the present invention.
  • an injection mold for preventing mold release shrinkage comprising an upper die plate 1, a lower die plate 9 and a positioning ring 30, and an upper portion of the upper surface of the upper die plate 1 is provided with a squeeze
  • the pressing plate 4 is provided with a horizontal groove 2 above the pressing plate 4, and an upper template connecting rod 3 is disposed above the right side of the pressing plate 4.
  • the left side of the pressing plate 4 is provided with an inclined groove 8 and a pressing plate
  • An upper template pin hole 5 is disposed at a lower right side of the upper plate 1.
  • the front surface of the upper die plate 1 is provided with a stopper 6.
  • the left outer surface of the upper die plate 1 is provided with a convex groove 7, and the upper surface of the lower die plate 9 is disposed at an intermediate position.
  • a concave panel 15 There is a concave panel 15, a lower template connecting rod 10 is disposed above the left side of the concave panel 15, a horizontal convex block 11 is disposed above the concave panel 15, and a lower template pin hole 12 is disposed above the right side of the concave panel 15, the concave panel
  • the right side of the 15 is provided with a diagonal protrusion 13 , and the left outer surface of the concave panel 15 is provided with a groove 14 , and the positioning ring 30 is installed at the middle of the back surface of the upper template 1 , and the material opening 29 is disposed below the positioning ring 30 .
  • An auxiliary injection hole 31 is disposed above the right side of the port 29, and a cup head screw 16 is disposed below the right side of the auxiliary injection hole 31.
  • a support head 17 is disposed below the lower left side of the cup head screw 16 near the auxiliary injection hole 31, and a return needle 18 is disposed below the left side of the support head 17, and a return needle sling 19 is disposed on both sides of the bottom end of the return needle 18.
  • a limited position nail 20 is disposed below the left side of the ejector pin 19, and a top stick hole 21 is disposed on the left side of the limit pin 20, and a bottom needle plate 23 is disposed above the left side of the top stick hole 21, above the bottom needle plate 23.
  • a needle plate 25 is disposed, and the needle plate 25 is internally provided with a thimble 22.
  • the left side of the needle plate 25 is provided with a spacer 24, and the left side of the mouth 29 is provided with a row board 28, and the row board 28 is provided.
  • a stay 27 is provided on the left side, and a pull rod 26 is disposed below the left side of the stay 27.
  • the upper template connecting rod 3 and the upper template pin hole 5 are respectively provided with four, and the lower template connecting rod 10 and the lower template pin hole 12 are respectively provided with four, the upper template 1 and the lower template.
  • the four corners of the 9 are fixedly connected to the four lower template connecting rods 10 and the four upper template pin holes 5 through the four upper template connecting rods 3 and the four lower template bolt holes 12, in order to put on The template 1 and the lower template 9 are assembled together.
  • Four upper template connecting rods 3 and four upper template pin holes 5 are arranged on the upper template 1, and four lower template connecting rods 10 and four are arranged on the lower template 9.
  • the lower template pin hole 12, the four lower template connecting rods 10 correspond to the four upper template pin holes 5, and the four upper template connecting rods 3 correspond to the four lower template pin holes 12, so that the upper template 1 and the lower template 9 are The corners are fixed more stable.
  • the oblique groove 8 and the lateral groove 2 are both provided, and the horizontal protrusion 11 and the oblique protrusion 13 are both provided, and the outer surfaces of the upper template 1 and the lower template 9 pass through two.
  • the oblique groove 8 and the two oblique protrusions 13 are fixedly connected to the two lateral grooves 2 and the two lateral convex blocks 11, and two inclined grooves 8 and lateral grooves 2 are provided on the outer surface of the upper die plate 1
  • Two inclined grooves 8 and two oblique protrusions 13 are provided on the outer surface of the lower die plate 9, so that the outer surfaces of the upper die plate 1 and the lower die plate 9 are more stably fixed.
  • both the convex groove 7 and the groove 14 are provided, and both side surfaces of the upper template 1 and the lower template 9 are slidably connected by two convex grooves 7 and two grooves 14, each mold Both are used together.
  • two convex grooves 7 are provided on both sides of the upper template 1
  • two grooves 14 are provided on both sides of the lower template 9.
  • the upper template 1 and the lower template 9 are connected by two convex grooves 7 and two grooves 14 to avoid loss of the template due to negligence of the staff.
  • the strut 27 and the row board 28 are both provided with two, and the strut 27 and the row board 28 are fixedly connected.
  • Uniform injection molding is provided with two struts 27 and a row plate 28 inside the upper die plate 1. In operation, the two struts 27 and the row plate 28 cooperate with each other and are uniformly injection molded on the concave panel 15.
  • the ejector slings 19 are provided with two, and the two ejector slings 19 are distributed on both sides of the bottom end of the ejector pin 18.
  • the lower template 9 is The inner portion is provided with a return needle 18 which cooperates with the two return needle slings 19 during operation to eject the plastic on the mold to improve the problem of mold release shrinkage of the existing injection mold.
  • the auxiliary injection hole 31 prevents the injection amount of the mold from being small during the operation, and the auxiliary injection hole 31 further injects the mold to compensate for the small injection amount of the material port 29, thereby causing the mold to be released and contracted.
  • the working principle and the use flow of the invention after the invention is installed, the upper template 1 and the lower template 9 are placed at the working place, and the upper template 1 and the lower template 9 are first assembled together, and four are arranged on the upper template 1.
  • the upper template connecting rod 3 and the four upper template pin holes 5 are provided with four lower template connecting rods 10 and four lower template pin holes 12 on the lower template 9, and four lower template connecting rods 10 corresponding to the four upper templates
  • the pin hole 5 and the four upper template connecting rods 3 correspond to the four lower template pin holes 12, so that the four corners of the upper plate 1 and the lower plate 9 are more stably fixed, and two outer surfaces of the upper plate 1 are disposed.
  • the inclined groove 8 and the lateral groove 2 are provided with two inclined grooves 8 and two oblique protrusions 13 on the outer surface of the lower die plate 9, so that the outer surfaces of the upper die plate 1 and the lower die plate 9 are more stably fixed.
  • the positioning ring 30 is injecting plastic into the outside, the plastic is placed from the material port 29, and then plastic is injected into the auxiliary injection hole 31, and two struts 27 and row positions are arranged inside the upper template 1.
  • the upper template 1 and the lower template 9 are wiped clean. Each mold is matched for use.
  • two convex grooves 7 are provided on both sides of the upper template 1
  • two grooves 14 are provided on both sides of the lower template 9.
  • the upper template 1 and the lower template 9 are connected by two convex grooves 7 and two grooves 14 to avoid the loss of the template due to the negligence of the staff for the next use.

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

Abstract

一种防止脱模收缩的注塑模具，包括上模板（1）、下模板（9）和定位圈（30），上模板（1）的上表面中间位置处设置有挤压板（4），挤压板（4）的上方设置有横凹槽（2），挤压板（4）的右侧上方设置有上模板连接杆（3），挤压板（4）的左侧设置有斜凹槽（8），挤压板（4）的右侧下方设置有上模板销栓孔（5），上模板（1）的前表面设置有挡块（6），上模板（1）的左侧外表面设置有凸槽（7），下模板（9）的上表面中间位置处设置有凹面板（15）；在上模板（1）的两侧表面设置有两个凸槽（7），在下模板（9）的两侧表面设置有两个凹槽（14），完成工作后，通过两个凸槽（7）和两个凹槽（14）把上模板（1）和下模板（9）连接在一起，避免因工作人员疏忽，造成模板丢失，给使用者带来便利。

Description

一种防止脱模收缩的注塑模具 技术领域
本发明属于注塑模具技术领域，具体涉及一种防止脱模收缩的注塑模具。
背景技术
模具是工业生产上用以注塑、吹塑、挤出、压铸或锻压成型、冶炼、冲压等方法得到所需产品的各种模子和工具，简而言之，模具是用来制作成型物品的工具，这种工具由各种零件构成，不同的模具由不同的零件构成，它主要通过所成型材料物理状态的改变来实现物品外形的加工，素有“工业之母”的称号，在外力作用下使坯料成为有特定形状和尺寸的制件的工具，广泛用于冲裁、模锻、冷镦、挤压、粉末冶金件压制、压力铸造，以及工程塑料、橡胶、陶瓷等制品的压塑或注塑的成形加工中。模具具有特定的轮廓或内腔形状，应用具有刃口的轮廓形状可以使坯料按轮廓线形状发生分离，应用内腔形状可使坯料获得相应的立体形状，模具一般包括动模和定模，两个部分，二者可分可合，分开时取出制件，合拢时使坯料注入模具型腔成形，模具是精密工具，形状复杂，承受坯料的胀力，对结构强度、刚度、表面硬度、表面粗糙度和加工精度都有较高要求，模具生产的发展水平是机械制造水平的重要标志之一，模具除其本身外，还需要模座、模架、模芯导致制件顶出装置等，这些部件一般都制成通用型，模具企业需要做大做精，要根据市场需求，及技术、资金、设备等条件，确定产品定位和市场定位，这些做法尤其值得小型模具企业学习和借鉴，集中力量逐步形成自己的技术优势和产品优势，所以，我国模具企业必须积极努力借鉴国外这些先进企业的经验，以便其未来更好的发展。
我国现有的注塑模具，在模具挤压完成时，脱模口容易收缩，模具有时因密封不严密，造成注塑失败，而且模具在放置时，容易弄乱，给使用者带来不便。
发明内容
本发明的目的在于提供一种防止脱模收缩的注塑模具，以解决上述背景技术中提出的现有的注塑模具，在模具挤压完成时，脱模口容易收缩，模具有时因密封不严密，造成注塑失败，而且模具在放置时，容易弄乱，给使用者带来不便的问题。
为实现上述目的，本发明提供如下技术方案：一种防止脱模收缩的注塑模具，包括上模板、下模板和定位圈，所述上模板的上表面中间位置处设置有挤压板，所述挤压板的上方设置有横凹槽，所述挤压板的右侧上方设置有上模板连接杆，所述挤压板的左侧设置有斜凹槽，所述挤压板的右侧下方设置有上模板销栓孔，所述上模板的前表面设置有挡块，所述上模板的左侧外表面设置有凸槽，所述下模板的上表面中间位置处设置有凹面板，所述凹面板的左侧上方设置有下模板连接杆，所述凹面板的上方设置有横凸块，所述凹面板的右侧上方设置有下模板销栓孔，所述凹面板的右侧设置有斜凸块，所述凹面板的左侧外表面设置有凹槽，所述定位圈安装在上模板的背面中间位置处，所述定位圈的下方设置有料口，所述料口的右侧上方设置有辅助注料孔，所述辅助注料孔的右侧下方设置有杯头螺钉，所述杯头螺钉的左侧下方靠近辅助注料孔的右侧下方设置有撑头，所述撑头的左侧下方设置有回针，所述回针底端的两侧设置有回针弹弓，所述回针弹弓的左侧下方设置有限位钉，所述限位钉的左侧设置有顶棍孔，所述顶棍孔的左侧上方设置有底针板，所述底针板的上方设置有面针板，所述面针板的内部设置有顶针，所述面针板的左侧设置有垫块，所述料口的左侧下方设置有行位板，所述行位板的左侧设置有撑杆，所述撑杆的左侧下方设置有拉杆。
优选的，所述上模板连接杆和上模板销栓孔均设置有四个，所述下模板连接杆和下模板销栓孔均设置有四个，所述上模板和下模板的四个拐角处通过四个上模板连接杆和四个下模板销栓孔与四个下模板连接杆和四个上模板 销栓孔固定连接。
优选的，所述斜凹槽和横凹槽均设置有两个，所述横凸块和斜凸块均设置有两个，所述上模板和下模板的外表面通过两个斜凹槽和两个斜凸块与两个横凹槽和两个横凸块固定连接。
优选的，所述凸槽和凹槽均设置有两个，所述上模板和下模板的两侧表面通过两个凸槽和两个凹槽滑动连接。
优选的，所述撑杆和行位板均设置有两个，所述撑杆和行位板之间固定连接。
优选的，所述回针弹弓均设置有两个，所述两个回针弹弓均分布在回针底端的两侧。
与现有技术相比，本发明的有益效果是：本发明结构科学合理，使用安全方便，在上模板上设置有四个上模板连接杆和四个上模板销栓孔，在下模板上设置有四个下模板连接杆和四个下模板销栓孔，四个下模板连接杆对应四个上模板销栓孔，四个上模板连接杆对应四个下模板销栓孔，使得上模板和下模板四个拐角处固定的更加稳定，在上模板的外表面上设置有两个斜凹槽和横凹槽，在下模板的外表面上设置有两个斜凹槽和两个斜凸块，进一步使得上模板和下模板的外表面固定的更加稳定，在上模板的内部设置有两个撑杆和行位板，在工作时，两个撑杆和行位板相互配合，在凹面板上均匀注塑，在下模板的内部设置有回针，回针在工作时配合两个回针弹弓，把模具上的塑料弹出，改善现有的注塑模具脱模收缩的问题，在上模板的两侧表面设置有两个凸槽，在下模板的两侧表面设置有两个凹槽，完成工作后，通过两个凸槽和两个凹槽把上模板和下模板连接在一起，避免因工作人员疏忽，造成模板丢失，给使用者带来便利。
附图说明
图1为本发明的上模板结构示意图；
图2为本发明的下模板结构示意图；
图3为本发明的正面结构示意图；
图中：1-上模板、2-横凹槽、3-上模板连接杆、4-挤压板、5-上模板销栓孔、6-挡块、7-凸槽、8-斜凹槽、9-下模板、10-下模板连接杆、11-横凸块、12-下模板销栓孔、13-斜凸块、14-凹槽、15-凹面板、16-杯头螺钉、17-撑头、18-回针、19-回针弹弓、20-限位钉、21-顶棍孔、22-顶针、23-底针板、24-垫块、25-面针板、26-拉杆、27-撑杆、28-行位板、29-料口、30-定位圈、31-辅助注料孔。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，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。
请参阅图1-3，本发明提供一种技术方案：一种防止脱模收缩的注塑模具，包括上模板1、下模板9和定位圈30，上模板1的上表面中间位置处设置有挤压板4，挤压板4的上方设置有横凹槽2，挤压板4的右侧上方设置有上模板连接杆3，挤压板4的左侧设置有斜凹槽8，挤压板4的右侧下方设置有上模板销栓孔5，上模板1的前表面设置有挡块6，上模板1的左侧外表面设置有凸槽7，下模板9的上表面中间位置处设置有凹面板15，凹面板15的左侧上方设置有下模板连接杆10，凹面板15的上方设置有横凸块11，凹面板15的右侧上方设置有下模板销栓孔12，凹面板15的右侧设置有斜凸块13，凹面板15的左侧外表面设置有凹槽14，定位圈30安装在上模板1的背面中间位置处，定位圈30的下方设置有料口29，料口29的右侧上方设置有辅助注料孔31，辅助注料孔31的右侧下方设置有杯头螺钉16，杯头螺钉16的左侧下方靠近辅助注料孔31的右侧下方设置有撑头17，撑头17的左侧下方设置 有回针18，回针18底端的两侧设置有回针弹弓19，回针弹弓19的左侧下方设置有限位钉20，限位钉20的左侧设置有顶棍孔21，顶棍孔21的左侧上方设置有底针板23，底针板23的上方设置有面针板25，面针板25的内部设置有顶针22，面针板25的左侧设置有垫块24，料口29的左侧下方设置有行位板28，行位板28的左侧设置有撑杆27，撑杆27的左侧下方设置有拉杆26。
本实施例中，优选的，上模板连接杆3和上模板销栓孔5均设置有四个，下模板连接杆10和下模板销栓孔12均设置有四个，上模板1和下模板9的四个拐角处通过四个上模板连接杆3和四个下模板销栓孔12与四个下模板连接杆10和四个上模板销栓孔5固定连接，在工作中，为了把上模板1和下模板9拼装在一起，在上模板1上设置有四个上模板连接杆3和四个上模板销栓孔5，在下模板9上设置有四个下模板连接杆10和四个下模板销栓孔12，四个下模板连接杆10对应四个上模板销栓孔5，四个上模板连接杆3对应四个下模板销栓孔12，使得上模板1和下模板9四个拐角处固定的更加稳定。
本实施例中，优选的，斜凹槽8和横凹槽2均设置有两个，横凸块11和斜凸块13均设置有两个，上模板1和下模板9的外表面通过两个斜凹槽8和两个斜凸块13与两个横凹槽2和两个横凸块11固定连接，在上模板1的外表面上设置有两个斜凹槽8和横凹槽2，在下模板9的外表面上设置有两个斜凹槽8和两个斜凸块13，使得上模板1和下模板9的外表面固定的更加稳定。
本实施例中，优选的，凸槽7和凹槽14均设置有两个，上模板1和下模板9的两侧表面通过两个凸槽7和两个凹槽14滑动连接，每个模具都是配套使用，为了防止因工作人员疏忽，造成模板丢失，在上模板1的两侧表面设置有两个凸槽7，在下模板9的两侧表面设置有两个凹槽14，完成工作后，通过两个凸槽7和两个凹槽14把上模板1和下模板9连接在一起，避免因工作人员疏忽，造成模板丢失。
本实施例中，优选的，撑杆27和行位板28均设置有两个，撑杆27和行 位板28之间固定连接，在注塑时，为了让下模板9外表面的凹面板15均匀注塑，在上模板1的内部设置有两个撑杆27和行位板28，在工作时，两个撑杆27和行位板28相互配合，在凹面板15上均匀注塑。
本实施例中，优选的，回针弹弓19均设置有两个，两个回针弹弓19均分布在回针18底端的两侧，在工作进行时，为了防止模具脱模收缩，在下模板9的内部设置有回针18，回针18在工作时配合两个回针弹弓19，把模具上的塑料弹出，改善现有的注塑模具脱模收缩的问题。
本发明中的辅助注料孔31在工作时，防止模具注塑量少，辅助注料孔31进一步给模具注料，弥补料口29注塑量少，造成模具脱模收缩。
本发明的工作原理及使用流程：本发明安装好过后，把上模板1和下模板9放置到工作地点，首先把上模板1和下模板9拼装在一起，在上模板1上设置有四个上模板连接杆3和四个上模板销栓孔5，在下模板9上设置有四个下模板连接杆10和四个下模板销栓孔12，四个下模板连接杆10对应四个上模板销栓孔5，四个上模板连接杆3对应四个下模板销栓孔12，使得上模板1和下模板9四个拐角处固定的更加稳定，在上模板1的外表面上设置有两个斜凹槽8和横凹槽2，在下模板9的外表面上设置有两个斜凹槽8和两个斜凸块13，使得上模板1和下模板9的外表面固定的更加稳定，在工作进行时，定位圈30对准外部注入塑料，塑料从料口29放入，随后在辅助注料孔31上加注入塑料，在上模板1的内部设置有两个撑杆27和行位板28，在工作时，两个撑杆27和行位板28相互配合，在凹面板15上均匀注塑，随后下模板9内部的回针18，回针18在工作时配合两个回针弹弓19，把模具上的塑料弹出，完成工作后，把上模板1和下模板9擦拭干净，因每个模具都是配套使用，为了防止因工作人员疏忽，造成模板丢失，在上模板1的两侧表面设置有两个凸槽7，在下模板9的两侧表面设置有两个凹槽14，完成工作后，通过两个凸槽7和两个凹槽14把上模板1和下模板9连接在一起，避免 因工作人员疏忽，造成模板丢失，以便下次使用。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (6)

  1. 一种防止脱模收缩的注塑模具，包括上模板(1)、下模板(9)和定位圈(30)，其特征在于：所述上模板(1)的上表面中间位置处设置有挤压板(4)，所述挤压板(4)的上方设置有横凹槽(2)，所述挤压板(4)的右侧上方设置有上模板连接杆(3)，所述挤压板(4)的左侧设置有斜凹槽(8)，所述挤压板(4)的右侧下方设置有上模板销栓孔(5)，所述上模板(1)的前表面设置有挡块(6)，所述上模板(1)的左侧外表面设置有凸槽(7)，所述下模板(9)的上表面中间位置处设置有凹面板(15)，所述凹面板(15)的左侧上方设置有下模板连接杆(10)，所述凹面板(15)的上方设置有横凸块(11)，所述凹面板(15)的右侧上方设置有下模板销栓孔(12)，所述凹面板(15)的右侧设置有斜凸块(13)，所述凹面板(15)的左侧外表面设置有凹槽(14)，所述定位圈(30)安装在上模板(1)的背面中间位置处，所述定位圈(30)的下方设置有料口(29)，所述料口(29)的右侧上方设置有辅助注料孔(31)，所述辅助注料孔(31)的右侧下方设置有杯头螺钉(16)，所述杯头螺钉(16)的左侧下方靠近辅助注料孔(31)的右侧下方设置有撑头(17)，所述撑头(17)的左侧下方设置有回针(18)，所述回针(18)底端的两侧设置有回针弹弓(19)，所述回针弹弓(19)的左侧下方设置有限位钉(20)，所述限位钉(20)的左侧设置有顶棍孔(21)，所述顶棍孔(21)的左侧上方设置有底针板(23)，所述底针板(23)的上方设置有面针板(25)，所述面针板(25)的内部设置有顶针(22)，所述面针板(25)的左侧设置有垫块(24)，所述料口(29)的左侧下方设置有行位板(28)，所述行位板(28)的左侧设置有撑杆(27)，所述撑杆(27)的左侧下方设置有拉杆(26)。
  2. 根据权利要求1所述的一种防止脱模收缩的注塑模具，其特征在于：所述上模板连接杆(3)和上模板销栓孔(5)均设置有四个，所述下模板连接杆(10)和下模板销栓孔(12)均设置有四个，所述上模板(1)和下模板(9)的四个拐角处通过四个上模板连接杆(3)和四个下模板销栓孔(12) 与四个下模板连接杆(10)和四个上模板销栓孔(5)固定连接。
  3. 根据权利要求1所述的一种防止脱模收缩的注塑模具，其特征在于：所述斜凹槽(8)和横凹槽(2)均设置有两个，所述横凸块(11)和斜凸块(13)均设置有两个，所述上模板(1)和下模板(9)的外表面通过两个斜凹槽(8)和两个斜凸块(13)与两个横凹槽(2)和两个横凸块(11)固定连接。
  4. 根据权利要求1所述的一种防止脱模收缩的注塑模具，其特征在于：所述凸槽(7)和凹槽(14)均设置有两个，所述上模板(1)和下模板(9)的两侧表面通过两个凸槽(7)和两个凹槽(14)滑动连接。
  5. 根据权利要求1所述的一种防止脱模收缩的注塑模具，其特征在于：所述撑杆(27)和行位板(28)均设置有两个，所述撑杆(27)和行位板(28)之间固定连接。
  6. 根据权利要求1所述的一种防止脱模收缩的注塑模具，其特征在于：所述回针弹弓(19)均设置有两个，所述两个回针弹弓(19)均分布在回针(18)底端的两侧。
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