WO1988000119A1 - Mecanisme protecteur contre les fuites de resine au niveau d'un ajutage etendu dans un dispositif de moulage a injection double - Google Patents

Mecanisme protecteur contre les fuites de resine au niveau d'un ajutage etendu dans un dispositif de moulage a injection double Download PDF

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Publication number
WO1988000119A1
WO1988000119A1 PCT/JP1987/000090 JP8700090W WO8800119A1 WO 1988000119 A1 WO1988000119 A1 WO 1988000119A1 JP 8700090 W JP8700090 W JP 8700090W WO 8800119 A1 WO8800119 A1 WO 8800119A1
Authority
WO
WIPO (PCT)
Prior art keywords
injection molding
double
resin
mold device
extended nozzle
Prior art date
Application number
PCT/JP1987/000090
Other languages
English (en)
Japanese (ja)
Inventor
Shozo Oka
Original Assignee
Meiseikinzokukogyosho Co., Ltd
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 Meiseikinzokukogyosho Co., Ltd filed Critical Meiseikinzokukogyosho Co., Ltd
Publication of WO1988000119A1 publication Critical patent/WO1988000119A1/fr

Links

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
    • B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
    • B29C45/322—Runner systems for distributing the moulding material to the stacked mould cavities
    • 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
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles

Definitions

  • a manifold occupying an appropriate capacity is positioned on the axis of symmetry of a mold apparatus for double-sided injection molding.
  • a molten resin from the injection molding cylinder is injected externally into the product cavity in order to inject the molten resin into the product cavity.
  • the extension nozzle made by slidably fitting the tubular core inside the outer cylinder to which the lower heater is fitted. I do.
  • the basic structure of a stack mold for a horizontal injection mold is a pair of cavity plates with partitioning on both sides and a double-sided cavity fused to the center of the plate.
  • the structure is equipped with an injection block that allows resin injection.
  • both party grits are The occurrence of resin leakage, nasal dripping, stringing, etc. on the surface. Because the occurrence of such an event causes the resin to penetrate onto the party line at the time of mold clamping in the next process, which leads to a serious accident on the molded product and the mold itself. There is nothing but fear.
  • the present invention pays attention to the fact that when the mold of the double-sided injection block is opened, the extension nozzle and the central injection block, which have been different so far, separate from each other, and the molten resin leaks from the separated portion on both sides.
  • the key point of the present invention is that the extension nozzle itself has a double pipe structure and is slidably fitted, so that it can be extended and contracted. I can do it.
  • a pair of manifolds occupying an appropriate volume [(width) X (height) X (thickness)] are placed on the axis of symmetry of the mold apparatus for double-sided injection molding.
  • the structure is formed by penetrating and fitting. For example, if its features and effects are given...
  • the extension nozzle can be freely slid long and short.
  • FIG. 1 shows a preferred double-sided injection molding apparatus according to the invention.
  • Fig. 2 and Fig. 3 show the preferred two-sided extension nozzle of the injection molding die apparatus.
  • Fig. 2 shows the outer cylinder
  • Fig. 3 shows the outer cylinder.
  • Fig. 4 shows a tubular core
  • Fig. 4 shows another embodiment of the extended nozzle resin leakage preventing structure in the preferred double-sided injection mold apparatus according to the present invention. .
  • Fig. 1 shows the preferred double-sided injection molding apparatus according to the invention.
  • M ⁇ H manifolds occupying an appropriate capacity [width (b) X height (h) X thickness)] are placed on the symmetric line (Y-Y) of M ⁇ A).
  • Molding device for double-sided injection molding (S- ⁇ ) consisting of a movable-side cavity plate (ICP) and a fixed-side cavity plate (£ _ • C ⁇ P)
  • a cylindrical heater ( ⁇ ) is provided on the outer layer in order to inject the molten resin (M) from the injection cylinder of the molding machine into the cavity plate at one center (C-C).
  • the tube core (I) is slidable inside the outer cylinder (P) to be fitted (that is, the tube core ( ⁇ ) can slide in the outer cylinder ( ⁇ )).
  • the extension nozzle ( ⁇ _) is inserted and fitted into the structure.
  • (—) is a parting line
  • (G) is a product
  • (R) is a runner
  • (D) Is the drive pin
  • (JP) is the ejector And ( ⁇ _) indicate the extension spool bush, respectively.
  • the mold apparatus for a stack mold according to the present invention has a simple structural principle, as mentioned in the disclosure of the invention on page 2 above. Easy production ⁇ Low price, low cost The practical effects of the present invention are outstanding, such as that it is extremely easy to attach to a cushion, etc., and regardless of the molding company, it has an invaluable contribution to improving the productivity of the molding industry. It is a promise.

Landscapes

  • 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

Mécanisme protecteur dans lequel un ajutage étendu possédant un noyau tubulaire introduit de manière coulissante à l'intérieur d'un cylindre externe, dont la surface externe est pourvue de corps de chauffe cylindriques, est introduit de manière à s'adapter sur une partie centrale du dispositif de moulage, pour injecter de la résine à l'état de fusion depuis un cylindre d'injection d'une machine de moulage dans une plaque à cavités et remplir ces dernières de résine.
PCT/JP1987/000090 1986-06-24 1987-02-13 Mecanisme protecteur contre les fuites de resine au niveau d'un ajutage etendu dans un dispositif de moulage a injection double WO1988000119A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61/097440U 1986-06-24
JP9744086U JPH0342993Y2 (fr) 1986-06-24 1986-06-24

Publications (1)

Publication Number Publication Date
WO1988000119A1 true WO1988000119A1 (fr) 1988-01-14

Family

ID=14192405

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1987/000090 WO1988000119A1 (fr) 1986-06-24 1987-02-13 Mecanisme protecteur contre les fuites de resine au niveau d'un ajutage etendu dans un dispositif de moulage a injection double

Country Status (2)

Country Link
JP (1) JPH0342993Y2 (fr)
WO (1) WO1988000119A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103507218A (zh) * 2013-09-02 2014-01-15 华尔达（厦门）塑胶有限公司 一种制造带有接头部的塑料软管的模具及一种两端带有接头部的塑料软管的制造方法
CH707792A1 (de) * 2013-03-26 2014-09-30 Schöttli AG Vorrichtung zum Zuführen des flüssigen Kunststoffs in ein Etagenwerkzeug.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4921098B1 (fr) * 1970-09-05 1974-05-29
JPS5334380Y1 (fr) * 1971-02-18 1978-08-23
JPS5517569A (en) * 1978-07-26 1980-02-07 Katashi Aoki Method and structure for prevention of drooling in injection molding die
JPS5848413U (ja) * 1981-09-29 1983-04-01 池上金型工業株式会社 多重成形金型

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4921098B1 (fr) * 1970-09-05 1974-05-29
JPS5334380Y1 (fr) * 1971-02-18 1978-08-23
JPS5517569A (en) * 1978-07-26 1980-02-07 Katashi Aoki Method and structure for prevention of drooling in injection molding die
JPS5848413U (ja) * 1981-09-29 1983-04-01 池上金型工業株式会社 多重成形金型

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH707792A1 (de) * 2013-03-26 2014-09-30 Schöttli AG Vorrichtung zum Zuführen des flüssigen Kunststoffs in ein Etagenwerkzeug.
WO2014153676A1 (fr) * 2013-03-26 2014-10-02 Schöttli AG Dispositif d'introduction de plastique liquide dans un outil à étages
CN103507218A (zh) * 2013-09-02 2014-01-15 华尔达（厦门）塑胶有限公司 一种制造带有接头部的塑料软管的模具及一种两端带有接头部的塑料软管的制造方法
CN103507218B (zh) * 2013-09-02 2015-08-26 华尔达（厦门）塑胶有限公司 一种制造带有接头部的塑料软管的模具及一种两端带有接头部的塑料软管的制造方法

Also Published As

Publication number Publication date
JPH0342993Y2 (fr) 1991-09-09
JPS633418U (fr) 1988-01-11

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