WO2020088181A1 - Method for cutting running gate off of injection-molded part - Google Patents

Method for cutting running gate off of injection-molded part Download PDF

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Publication number
WO2020088181A1
WO2020088181A1 PCT/CN2019/108990 CN2019108990W WO2020088181A1 WO 2020088181 A1 WO2020088181 A1 WO 2020088181A1 CN 2019108990 W CN2019108990 W CN 2019108990W WO 2020088181 A1 WO2020088181 A1 WO 2020088181A1
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WO
WIPO (PCT)
Prior art keywords
molded part
injection
gate
injection molded
cutting
Prior art date
Application number
PCT/CN2019/108990
Other languages
French (fr)
Chinese (zh)
Inventor
徐增强
付扬帆
Original Assignee
歌尔股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2020088181A1 publication Critical patent/WO2020088181A1/en

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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
    • B29C45/38—Cutting-off equipment for sprues or ingates

Definitions

  • the invention discloses a gate cutting method for injection molded parts.
  • the method includes: determining the connection position of the injection molded part and the gate; on the outside of the injection molded part, the laser light source is inclined at a predetermined angle to perform laser cutting at the connection position During laser cutting, the outer laser beam is along the joint surface of the injection molded part and the gate to cut the gate from the injection molded part at the connection position.
  • the injection gate cutting method provided by the embodiment of the present invention changes the existing laser light source from vertical cutting to oblique cutting, so that when cutting, the outer laser light can be along the injection molding and pouring The joint surface of the gate, so that the gate can be completely cut off from the injection molded part to avoid the gate residue on the injection molded part.

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

Abstract

Disclosed is a method for cutting a running gate (3) off of an injection-molded part. The method comprises determining a position of connection of the injection-molded part with the running gate (3); and performing laser cutting at the position of connection by means of a laser light source (5) outside the injection-molded part, the laser being obliquely directed at the position of connection at a predetermined angle. During the laser cutting, the external laser light (5) cuts along the interface of the injection-molded part and the running gate (3), thus cutting the running gate (3) off of the injection-molded part at the position of connection. In the method, the laser light source (5) cuts in an oblique direction instead of in a vertical direction as in the prior art. In this way, the external laser light source (5) can cut along the interface of the injection-molded part and the running gate (3) to completely cut the running gate (3) off of the injection-molded part, thus avoiding leaving a residual running gate piece (6) on the injection-molded part.

Description

无标题Untitled
本发明公开了一种注塑件浇口裁切方法，该方法包括：确定注塑件与浇口的连接位置；在注塑件的外侧，激光光源以预定角度倾斜的在所述连接位置上进行激光切割，在进行激光切割时，外侧的激光光线沿着注塑件与浇口的结合面，以在所述连接位置上将浇口从注塑件上裁切下来。本发明实施例提供的注塑浇口裁切方法，将现有的激光光源由竖直方向裁切改为倾斜裁切的方式，这样在进行裁切时外侧的激光光线可以沿着注塑件与浇口的结合面，从而可以将浇口彻底从注塑件上裁切下来，避免在注塑件上产生浇口残留物。The invention discloses a gate cutting method for injection molded parts. The method includes: determining the connection position of the injection molded part and the gate; on the outside of the injection molded part, the laser light source is inclined at a predetermined angle to perform laser cutting at the connection position During laser cutting, the outer laser beam is along the joint surface of the injection molded part and the gate to cut the gate from the injection molded part at the connection position. The injection gate cutting method provided by the embodiment of the present invention changes the existing laser light source from vertical cutting to oblique cutting, so that when cutting, the outer laser light can be along the injection molding and pouring The joint surface of the gate, so that the gate can be completely cut off from the injection molded part to avoid the gate residue on the injection molded part.

Claims (8)

  1. 一种注塑件浇口裁切方法，其特征在于，包括：A gate cutting method for injection molded parts, characterized in that it includes:
    确定注塑件与浇口的连接位置；Determine the connection position of injection parts and gate;
    在注塑件的外侧，激光光源以预定角度倾斜的在所述连接位置上进行激光切割，在进行激光切割时，外侧的激光光线沿着注塑件与浇口的结合面，以在所述连接位置上将浇口从注塑件上裁切下来。On the outside of the injection molded part, the laser light source is laser-cut at the connection position at a predetermined angle. When performing laser cutting, the laser light on the outside is along the joint surface of the injection molded part and the gate to the connection position Cut the gate from the injection molded part.
  2. 根据权利要求1所述的注塑件浇口裁切方法，其特征在于，所述注塑件为振膜的球顶部。The gate cutting method for injection molded parts according to claim 1, wherein the injection molded part is a spherical top of a diaphragm.
  3. 根据权利要求1所述的注塑件浇口裁切方法，其特征在于，所述预定角度为激光光线汇聚后形成的锥角角度的1/2。The method for cutting a gate of an injection molded part according to claim 1, wherein the predetermined angle is 1/2 of the angle of the cone angle formed after the laser light is converged.
  4. 根据权利要求1所述的注塑件浇口裁切方法，其特征在于，所述注塑件与所述浇口之间形成的切口呈楔形。The method for cutting a gate of an injection molded part according to claim 1, wherein the cut formed between the injection molded part and the gate is wedge-shaped.
  5. 根据权利要求1所述的注塑件浇口裁切方法，其特征在于，在所述确定注塑件与浇口的连接位置之前，还包括：对注塑件进行定位。The method for cutting a gate of an injection molded part according to claim 1, further comprising: positioning the injection molded part before determining the connection position of the injection molded part and the gate.
  6. 根据权利要求5所述的注塑件浇口裁切方法，其特征在于，采用定位机构对所述注塑件进行定位。The gate cutting method for injection molded parts according to claim 5, wherein a positioning mechanism is used to position the injection molded parts.
  7. 根据权利要求6所述的注塑件浇口裁切方法，其特征在于，所述定位机构采用真空吸附装置。The method for cutting gates of injection molded parts according to claim 6, wherein the positioning mechanism uses a vacuum suction device.
  8. 根据权利要求1所述的注塑件浇口裁切方法，其特征在于，采用视觉检测机构确定注塑件与浇口的连接位置。The method for cutting a gate of an injection-molded part according to claim 1, wherein a visual detection mechanism is used to determine the connection position of the injection-molded part and the gate.
PCT/CN2019/108990 2018-10-31 2019-09-29 Method for cutting running gate off of injection-molded part WO2020088181A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811290618.0A CN109571882B (en) 2018-10-31 2018-10-31 Injection molding part sprue cutting method
CN201811290618.0 2018-10-31

Publications (1)

Publication Number Publication Date
WO2020088181A1 true WO2020088181A1 (en) 2020-05-07

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PCT/CN2019/108990 WO2020088181A1 (en) 2018-10-31 2019-09-29 Method for cutting running gate off of injection-molded part

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WO (1) WO2020088181A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109571882B (en) * 2018-10-31 2020-05-29 歌尔股份有限公司 Injection molding part sprue cutting method
CN112372074A (en) * 2020-11-04 2021-02-19 厦门至慧机器人有限公司 Method for on-line correcting machining position size deviation of saw cutting machine caused by machined part deformation by using machine vision technology
CN115301636A (en) * 2022-08-12 2022-11-08 阳程科技股份有限公司 Laser degumming method and degumming equipment adopting same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02113922A (en) * 1988-10-24 1990-04-26 Seidensha Denshi Kogyo Kk Method for bonding member
CN101274480A (en) * 2007-03-26 2008-10-01 三菱丽阳株式会社 Gate cutting machine, gate cutting method and light plate producing method
WO2012013194A1 (en) * 2010-07-30 2012-02-02 Vestas Wind Systems A/S Method and apparatus for chamfering of laminate layers
CN104465414A (en) * 2009-07-06 2015-03-25 瑞萨电子株式会社 Method For Manufacturing Semiconductor Device
CN204545725U (en) * 2015-03-28 2015-08-12 合肥汇通控股股份有限公司 Laser cutting positioning tool
CN206543951U (en) * 2017-03-03 2017-10-10 震宇（天津）精密塑胶有限公司 A kind of laser cuts gating apparatus
CN109571882A (en) * 2018-10-31 2019-04-05 歌尔股份有限公司 A kind of moulding cast gate cutting method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02113922A (en) * 1988-10-24 1990-04-26 Seidensha Denshi Kogyo Kk Method for bonding member
CN101274480A (en) * 2007-03-26 2008-10-01 三菱丽阳株式会社 Gate cutting machine, gate cutting method and light plate producing method
CN104465414A (en) * 2009-07-06 2015-03-25 瑞萨电子株式会社 Method For Manufacturing Semiconductor Device
WO2012013194A1 (en) * 2010-07-30 2012-02-02 Vestas Wind Systems A/S Method and apparatus for chamfering of laminate layers
CN204545725U (en) * 2015-03-28 2015-08-12 合肥汇通控股股份有限公司 Laser cutting positioning tool
CN206543951U (en) * 2017-03-03 2017-10-10 震宇（天津）精密塑胶有限公司 A kind of laser cuts gating apparatus
CN109571882A (en) * 2018-10-31 2019-04-05 歌尔股份有限公司 A kind of moulding cast gate cutting method

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CN109571882B (en) 2020-05-29

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