WO2017131299A1 - Moule d'injection à système d'évacuation de poussière en pet - Google Patents

Moule d'injection à système d'évacuation de poussière en pet Download PDF

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Publication number
WO2017131299A1
WO2017131299A1 PCT/KR2016/005866 KR2016005866W WO2017131299A1 WO 2017131299 A1 WO2017131299 A1 WO 2017131299A1 KR 2016005866 W KR2016005866 W KR 2016005866W WO 2017131299 A1 WO2017131299 A1 WO 2017131299A1
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WO
WIPO (PCT)
Prior art keywords
dust
air
resin
injection
unit
Prior art date
Application number
PCT/KR2016/005866
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English (en)
Korean (ko)
Inventor
유성진
Original Assignee
(주)유도
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.)
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Publication date
Application filed by (주)유도 filed Critical (주)유도
Publication of WO2017131299A1 publication Critical patent/WO2017131299A1/fr

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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
    • 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
    • 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
    • B29C45/76—Measuring, controlling or regulating

Definitions

  • the present invention relates to an injection mold equipped with a PET dust discharge system. More specifically, PET resin resin dust is deposited in the space where the piston operates, which lowers the operation efficiency of the piston and hinders the gate sealing, thereby preventing the disruption of the production plan. It relates to an injection mold having a discharge device for discharging the PET dust leaked between the pin guide bush and the valve pin to the outside so that the inside of the manifold.
  • the resin Due to the resin flow characteristics in the runner of the manifold of the injection molding apparatus, after the injection molding is paused or terminated, the resin remains on the inner wall of the runner or on the inner wall of the resin passage of the nozzle. In addition, when the length of the runner of the manifold is long, the flow frictional resistance with the inner wall of the runner increases, so that the amount of resin remaining in the runner increases.
  • the resin remaining on the inner wall of the resin passage of the runner or nozzle is carbonized and discolored by the heat of the heater.
  • the resin particularly, a resin having a different color
  • the resin is mixed with a new resin to cause poor molding Generates.
  • the conventional injection mold apparatus has a disadvantage in that the consumption of the resin is increased according to the resin replacement because the new resin must be supplied until the resin remaining on the inner wall of the runner or the resin passage of the nozzle is completely discharged and removed.
  • the molten resin supplying device for supplying the molten resin to the injection molding apparatus melt-injected a resin of a predetermined capacity, so that the molten resin supply capacity for supplying to the cavity inside the mold is determined.
  • the capacity of the cavity provided in the mold is relatively small compared to the supply capacity of the resin supply device, the amount of residual resin remaining in the runner of the manifold also increases, so that the resin to be removed when exchanging with another resin is injected. There is also a problem that increases the consumption.
  • the present invention has been made by the above-described background art, and the resin dust of PET material is deposited in the space inside the hot runner to reduce the operation efficiency of the piston to prevent the sealing failure of the gate. And by discharging the dust of the resin periodically by using a Sol Valve, it is possible to easily maintain the mold, PET dust that can prevent the disruption to the plan of product production in advance
  • the purpose is to provide an exhaust system.
  • the upper fixing plate equipped with a piston assembly for operating the valve pin; A fixed plate having a nozzle for discharging the resin by the valve pin; A manifold for supplying resin to make injection molding; And a dust accommodating groove configured between the upper fixing plate and the fixed plate to accommodate the remaining resin to prevent deposition of the resin, and an air injection hole connected to one side of the dust accommodating groove to inject air and the dust accommodating dust. It is characterized in that it comprises a dust removal panel is connected to the other side of the groove is formed with a dust discharge groove for discharging the dust received during the injection of the air.
  • the air injection hole and the dust discharge hole are characterized in that the injection mold forming a plurality of cavities, each independently configured in a direction facing each other.
  • the air injection hole is characterized in that the diameter of the end making contact with the dust receiving groove is configured to be smaller than the diameter of the supply of the air supply.
  • the dust removal panel includes a control valve connected to the air injection hole to supply air having a predetermined pressure; A dust disposal unit for storing and discarding the resin dust discharged together with the air supplied through the control valve; And a control system for controlling the driving of the control valve and the dust disposal unit.
  • control valve is connected to an air supply device, the air supply unit for supplying air, an inlet for injecting air supplied from the air supply unit to the air injection hole side, the inlet and air injection It characterized in that it comprises a supply line for connecting the hole.
  • the control system includes a control unit for controlling the control valve and the dust disposal unit; A timer setting unit for setting a timer so that the control valve can be driven according to a set time and transmitting the same to the control unit; A cumulative amount setting unit for setting a cumulative amount for the number of injections of the injection mold so that the control valve can be driven according to the injection amount; It is linked with the control unit, characterized in that it comprises a signal transmission unit for transmitting the injection signal transmitted from the injection machine.
  • control unit is characterized in that the control of the drive of the control valve on the basis of the data when the data set from any one of the timer setting unit or the cumulative amount setting unit is transmitted.
  • control system may further include an error detection unit for detecting a malfunction when a control valve occurs under the control of the controller and transmitting the same to the controller.
  • the PET dust is deposited in the piston operating space has the effect of preventing the sealing efficiency of the gate to be lowered by reducing the operating efficiency of the piston.
  • FIG. 1 is a view schematically showing an injection mold equipped with a PET dust discharge system according to an embodiment of the present invention
  • Figure 2 is a plan view showing a discharge panel of the PET dust discharge system according to an embodiment of the present invention
  • FIG. 3 is a perspective view showing a PET dust discharge system according to an embodiment of the present invention.
  • FIG. 4 is a block diagram schematically showing a PET dust discharge system according to an embodiment of the present invention
  • 5 and 6 are photographs showing the injection mold before and after using the PET dust discharge system according to an embodiment of the present invention.
  • An upper fixing plate mounted with a piston assembly for operating the valve pin
  • a fixed plate having a nozzle for discharging the resin by the valve pin
  • a dust accommodating groove configured between the upper fixing plate and the fixed plate to accommodate the remaining resin to prevent deposition of the resin, and an air injection hole connected to one side of the dust accommodating groove to inject air and the dust accommodating groove Dust removal panel is connected to the other side of the dust discharge groove is formed to discharge the dust received when the air is injected
  • Injection mold provided with a PET dust discharge system comprising a.
  • the injection mold equipped with the PET dust discharge system of the present invention is an upper fixing plate 102, the piston assembly 110 is mounted, the upper end is connected to the piston assembly 110,
  • the valve pin 120 is configured to discharge the resin while the lowering operation is performed, the lower portion of the valve pin 120 is inserted, the nozzle assembly for discharging the resin to the gate side of the mold in accordance with the operation of the valve pin 120.
  • a dust removal panel 210 is configured to prevent a synthetic resin such as PET resin from being deposited so that precise operation of an injection mold apparatus such as a hot runner system is performed.
  • the dust removal panel 210 is configured in the lower portion of the upper fixing plate 102, the lower end of the piston assembly 110 to support the lifting operation of the valve pin 120 coupled to the piston assembly 110.
  • the guide pin and the lifting operation of the valve pin 120 is a component that prevents the residue, such as dust of the synthetic resin of PET material to be deposited in the injection mold.
  • the dust removal panel 210 is preferably configured integrally with the upper fixing plate 102, but is not limited thereto, and may be configured independently of the upper fixing plate 102.
  • the dust removal panel 210 is formed with a dust receiving groove 216 is accommodated temporarily stored in the dust of the resin generated during the lifting operation of the valve pin 120, the one side of the dust receiving groove 216 Air injection hole 212 into which air for discharging the received dust is injected, and dusts of the synthetic resin formed on the other side of the dust accommodating groove 216 and transferred together with air injected through the air injection hole 212 are discharged.
  • the dust discharge groove 214 is formed.
  • the dust receiving groove 216 is in the form of a predetermined hole using a gun drill, the upper portion is configured to communicate with the lower end of the piston assembly 110 so that the lifting operation of the valve pin 120 is made.
  • both side portions of the dust accommodating groove 216 are connected to the air injection hole 212 and the dust discharge hole 214, respectively, to move the resin dust in a state where the air injected therethrough is moved to the dust discharge hole 214. It is configured to be.
  • the dust receiving groove 216 is composed of a plurality of the piston assembly 110, or valve pin 120 in the cavity of the injection mold, the dust is formed in the same number as the gas of the valve pin 120 to accommodate the resin dust Configured to be made.
  • the air injection hole 212 and the dust discharge hole 214 may be configured for each cavity.
  • the air injection hole 212 and the dust discharge hole 214 are configured independently of each other in a direction facing each other to discharge the resin dust. Efficiency can be further maximized.
  • the air injection hole 212 of the present invention is configured such that the diameter of the end making contact with the dust accommodating groove 216 is smaller than the diameter of the supply portion through which the air is supplied, the dust accommodating while having a predetermined pressure during air injection It may be possible to enter the groove 216 to discharge the resin dust, but is not limited thereto.
  • the dust removal panel 210 of the present invention is formed on the upper end of the dust receiving groove 216 is removed to remove the resin dust remaining on the outer peripheral surface of the valve pin 120 is discharged to the outside of the dust removal panel 210 While preventing, the guide member 218 for supporting the vertical lifting operation of the valve pin 120 may be further configured, but is not limited thereto.
  • the present invention is a dust for storing and discarding the control valve 310 for supplying air having a predetermined pressure to the dust removal panel 210 and the resin dust discharged together with the air supplied through the control valve 310
  • the disposal unit 320 is further configured.
  • the control valve 310 is connected to the air injection hole 212 and the supply line 302 of the dust control panel 210 is a component for supplying a predetermined amount of air under the control of the controller 330 to be described later.
  • the control valve 310 is connected to an air supply device, such as a compressor for supplying compressed air, the air supply unit 312 is configured to supply air, is connected to the supply line 302 is supplied from the air supply unit 312 An injection hole 314 for injecting the air into the air injection hole 212 is configured.
  • an air supply device such as a compressor for supplying compressed air
  • the air supply unit 312 is configured to supply air
  • the supply line 302 is supplied from the air supply unit 312
  • An injection hole 314 for injecting the air into the air injection hole 212 is configured.
  • control valve 310 is configured to be injected into the air injection hole 212 by controlling the supply amount of air, the injection time of the injected air, etc. under the control of the controller 330.
  • the dust disposal unit 320 is connected through the dust discharge hole 214 and the discharge line 304, and may be made of a configuration such as a storage chamber so that the resin dust discharged with air is stored and stored, and the storage amount exceeds a predetermined amount. If so, the pre-stored resin dust is a component to be made.
  • the dust disposal unit 320 is preferably configured to control whether or not the disposal of the resin dust by transmitting a signal for the storage amount of the resin dust to the control unit 330 side.
  • the present invention may be further configured to the control system so that the automatic discharge of the dust accommodated in the dust removal panel 210 can be made.
  • the control system includes a control unit 330 which controls the driving of the control valve 310 and the dust disposal unit 320 and controls the overall components of the control system to be organically driven.
  • control system is driven according to the control of the control unit 330, the timer setting unit 340 to automatically operate whether or not the operation of the control valve 310 at a set time period, and control according to the accumulated number of injection of the injection mold
  • the cumulative amount setting unit 350 may be further configured to control the driving of the valve 310.
  • the timer setting unit 340 sets the driving time of the control valve 310, and when the set time is reached, a component which enables the driving signal of the control valve 310 to be automatically transmitted through the control unit 330.
  • the second, minute, and time units can be set.
  • the accumulation amount setting unit 350 sets the accumulation amount for the number of injection of the injection mold, and when the set accumulation amount is reached, the driving signal of the control valve 310 may be transmitted under the control of the controller 330.
  • the control unit 330 receives the signal for controlling the operation of the control valve 310. .
  • the cumulative amount setting unit 350 is interlocked with the control unit 330, it is preferable that the signal transmission unit 360 for receiving the injection signal transmitted from the injection machine to transmit to the control unit 330.
  • the controller 330 is a component that controls whether the control valve 310 is driven based on the data when the data set by the timer setting unit 340 or the accumulation amount setting unit 350 is transmitted.
  • the controller 330 may control the driving time of the control valve 310 and the output time of the air supply device according to the set data.
  • control valve 310 when a malfunction of the control valve 310 occurs under the control of the control unit 330, it detects it and transmits it to the control unit 330, thereby preventing the injection of the injection mold according to the error of the control valve 310.
  • the error detection unit 370 may be further configured to prevent the injection precision from being lowered, but is not limited thereto.
  • PET dust is deposited in the resin supply path while preventing the operation efficiency of the piston assembly 110 from being lowered and reducing the precision of the sealing process of the gate, and preventing the dust of the resin from the sole valve.
  • a control valve 310 such as (Sol Valve)
  • Sol Valve Sol Valve
  • control valve 320 dust disposal unit
  • control unit 340 timer setting unit

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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

La présente invention concerne un moule d'injection pourvu d'un système d'évacuation de poussière en PET. La présente invention comprend : une plaque de fixation supérieure sur laquelle est monté un ensemble piston destiné à actionner une goupille de soupape; une plaque de fixation inférieure sur laquelle est montée une buse d'éjection de résine par la goupille de soupape; un collecteur destiné à amener la résine de façon à effectuer le moulage par injection; et un panneau d'élimination de poussière disposé entre la plaque de fixation supérieure et la plaque de fixation inférieure et comportant une rainure de réception de poussière dans laquelle est logée la résine restante de manière à empêcher l'accumulation de la résine, un orifice d'injection d'air relié à un côté de la rainure de réception de poussière de manière à injecter de l'air, et une rainure d'évacuation de poussière reliée à l'autre côté de la rainure de réception de poussière de manière à évacuer la poussière reçue lorsque l'air est injecté.
PCT/KR2016/005866 2016-01-29 2016-06-02 Moule d'injection à système d'évacuation de poussière en pet WO2017131299A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0011505 2016-01-29
KR1020160011505A KR101835048B1 (ko) 2016-01-29 2016-01-29 Pet 더스트 배출 시스템이 구비된 사출 금형

Publications (1)

Publication Number Publication Date
WO2017131299A1 true WO2017131299A1 (fr) 2017-08-03

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Application Number Title Priority Date Filing Date
PCT/KR2016/005866 WO2017131299A1 (fr) 2016-01-29 2016-06-02 Moule d'injection à système d'évacuation de poussière en pet

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KR (1) KR101835048B1 (fr)
WO (1) WO2017131299A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114474687A (zh) * 2021-12-31 2022-05-13 苏州俊鑫塑胶有限公司 一种吸塑盘生产用模具装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3908672B2 (ja) * 2003-01-30 2007-04-25 株式会社型システム ホットランナー式金型
KR100855933B1 (ko) * 2005-11-29 2008-09-02 유도실업주식회사 사출기용 핫 러너 시스템
WO2009055901A1 (fr) * 2007-10-31 2009-05-07 Husky Injection Molding Systems Ltd. Canal chauffé présentant une coulure de tige de soupape réduite
KR20120042205A (ko) * 2010-10-25 2012-05-03 주식회사 삼진엘앤디 핫 러너 시스템의 가스 제거 장치
KR101142158B1 (ko) * 2009-12-31 2012-05-10 주식회사 동명테크 가스배출식 사출금형용 핫런너시스템

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101033232B1 (ko) 2010-08-11 2011-05-06 주식회사 엠엔에이치 세라믹을 이용한 핫 런너 시스템

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3908672B2 (ja) * 2003-01-30 2007-04-25 株式会社型システム ホットランナー式金型
KR100855933B1 (ko) * 2005-11-29 2008-09-02 유도실업주식회사 사출기용 핫 러너 시스템
WO2009055901A1 (fr) * 2007-10-31 2009-05-07 Husky Injection Molding Systems Ltd. Canal chauffé présentant une coulure de tige de soupape réduite
KR101142158B1 (ko) * 2009-12-31 2012-05-10 주식회사 동명테크 가스배출식 사출금형용 핫런너시스템
KR20120042205A (ko) * 2010-10-25 2012-05-03 주식회사 삼진엘앤디 핫 러너 시스템의 가스 제거 장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114474687A (zh) * 2021-12-31 2022-05-13 苏州俊鑫塑胶有限公司 一种吸塑盘生产用模具装置

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Publication number Publication date
KR20170090761A (ko) 2017-08-08
KR101835048B1 (ko) 2018-03-06

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