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US20060188601A1 - Collapsible core using two sleeves and is spring loaded - Google Patents

Collapsible core using two sleeves and is spring loaded Download PDF

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Publication number
US20060188601A1
US20060188601A1 US10/906,413 US90641305A US2006188601A1 US 20060188601 A1 US20060188601 A1 US 20060188601A1 US 90641305 A US90641305 A US 90641305A US 2006188601 A1 US2006188601 A1 US 2006188601A1
Authority
US
United States
Prior art keywords
wedge sections
perimeter
core device
outside
inside wedge
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.)
Abandoned
Application number
US10/906,413
Inventor
Garry Zydron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Progressive Components International Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US10/906,413 priority Critical patent/US20060188601A1/en
Priority to US11/143,528 priority patent/US7293341B2/en
Priority to EP06735268A priority patent/EP1853414A4/en
Priority to DE112006000403T priority patent/DE112006000403T5/en
Priority to CA002646402A priority patent/CA2646402A1/en
Priority to CN2006800128668A priority patent/CN101448620B/en
Priority to PCT/US2006/005516 priority patent/WO2006089049A1/en
Publication of US20060188601A1 publication Critical patent/US20060188601A1/en
Assigned to PROGRESSIVE COMPONENTS INTERNATIONAL CORPORATION reassignment PROGRESSIVE COMPONENTS INTERNATIONAL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ZYDRON, GARRY, MR.
Abandoned 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4421—Removing or ejecting moulded articles for undercut articles using expansible or collapsible cores
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/4987—Elastic joining of parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body

Definitions

  • This invention relates in general as part of an injection mold which produces parts requiring details such as internal threads, undercuts, protrusions, or cut-outs.
  • This invention releases the internal ( FIG. 4 thru FIG. 6 ) detail by removing the central pin and collapsing inwardly first the inner sleeve and then the outer sleeve allowing the core sleeves to clear the protruding material (the safety bushing will force this collapse), the part would then be ejected by other means not associated with this apparatus.
  • This invention does not require any rotational motion.
  • the collapsible core is manufactured using two sleeves ( FIG. 7 thru FIG. 14 ), one fit inside the other ( FIG. 1 thru FIG. 3 ), which allows advanced manufacturing techniques resulting in improved quality and reliability.
  • FIG. 1 is a top view of the assembly in molding position.
  • FIG. 2 is a detail view “C” taken from FIG. 1 showing the inside and outside sleeves.
  • FIG. 3 is a section view “A-A” taken from FIG. 1 showing the assembly in molding position cut through both the inside and outside sleeves.
  • FIG. 4 is a top view of the assembly in collapsed position.
  • FIG. 5 is a detail view “D” taken from FIG. 4 showing the inside and out side sleeves.
  • FIG. 6 is a section view “B-B” taken from FIG. 4 showing the assembly in collapsed position cut through both the inside and outside sleeves with the pin removed.
  • FIG. 7 shows the top view of the inner sleeve in molding position.
  • FIG. 8 shows the right side view of the inner sleeve in molding position.
  • FIG. 9 shows the front view of the inner sleeve in molding position.
  • FIG. 10 shows the isometric view of the outer sleeve in molding position.
  • FIG. 11 shows the top view of the outer sleeve in molding position.
  • FIG. 12 shows the right side view of the outer sleeve in molding position.
  • FIG. 13 shows the front view of the outer sleeve in molding position.
  • FIG. 14 shows the isometric view of the outer sleeve in molding position.
  • FIG. 15 shows a isometric image of the assembly in molding position.
  • FIG. 16 shows a isometric image of the assembly in collapsed position.

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

Abstract

This invention is the first time two sleeves have been used to improve the manufacturability of the collapsible sections of this apparatus; this greatly improves the accuracy during manufacture and reliability during use.

Description

  • This invention relates in general as part of an injection mold which produces parts requiring details such as internal threads, undercuts, protrusions, or cut-outs.
  • This invention releases the internal (FIG. 4 thru FIG. 6) detail by removing the central pin and collapsing inwardly first the inner sleeve and then the outer sleeve allowing the core sleeves to clear the protruding material (the safety bushing will force this collapse), the part would then be ejected by other means not associated with this apparatus.
  • This invention does not require any rotational motion.
  • The collapsible core is manufactured using two sleeves (FIG. 7 thru FIG. 14), one fit inside the other (FIG. 1 thru FIG. 3), which allows advanced manufacturing techniques resulting in improved quality and reliability.
  • (1) FIG. 1 is a top view of the assembly in molding position.
  • (2) FIG. 2 is a detail view “C” taken from FIG. 1 showing the inside and outside sleeves.
  • (3) FIG. 3 is a section view “A-A” taken from FIG. 1 showing the assembly in molding position cut through both the inside and outside sleeves.
  • (4) FIG. 4 is a top view of the assembly in collapsed position.
  • (5) FIG. 5 is a detail view “D” taken from FIG. 4 showing the inside and out side sleeves.
  • (6) FIG. 6 is a section view “B-B” taken from FIG. 4 showing the assembly in collapsed position cut through both the inside and outside sleeves with the pin removed.
  • (7) FIG. 7 shows the top view of the inner sleeve in molding position.
  • (8) FIG. 8 shows the right side view of the inner sleeve in molding position.
  • (9) FIG. 9 shows the front view of the inner sleeve in molding position.
  • (10) FIG. 10 shows the isometric view of the outer sleeve in molding position.
  • (11) FIG. 11 shows the top view of the outer sleeve in molding position.
  • (12) FIG. 12 shows the right side view of the outer sleeve in molding position.
  • (13) FIG. 13 shows the front view of the outer sleeve in molding position.
  • (14) FIG. 14 shows the isometric view of the outer sleeve in molding position.
  • (15) FIG. 15 shows a isometric image of the assembly in molding position.
  • (16) FIG. 16 shows a isometric image of the assembly in collapsed position.

Claims (10)

1. (canceled)
2. (canceled)
3. A collapsible core device for molding articles around said core device in a mold cavity, comprising:
a outer sleeve member having a plurality of outside wedge sections extending from a first base in an axial direction, said plurality of outside wedge sections defining a discontinuous first perimeter surrounding a channel;
a inner sleeve member having a plurality of inside wedge sections extending from a second base in an axial direction, said plurality of inside wedge sections defining a discontinuous second perimeter surrounding said central channel;
each of said inside wedge sections arranged between adjacent ones of said outside wedge sections; and
a center pin, slidable axially within said central channel to forcibly displace said first and inside wedge sections outwardly to form a substantially continuous perimeter defined by said first and inside wedge sections.
4. The core device according to claim 3, wherein said outside wedge sections are tapered in a radially inward direction and said inside wedge sections are tapered in a radially outward direction.
5. The core device according to claim 3, wherein said overall perimeter comprises a cylindrical surface with protruding threads.
6. The core device according to claim 5, wherein at least said inside wedge sections comprise outside protuberances arranged around said second discontinuous perimeter, and further comprising a bushing surrounding said second discontinuous perimeter and including a surface for sliding over said protuberances to drive said inside wedge sections inwardly.
7. The core device according to claim 3, wherein at least said inside wedge sections comprise outside protuberances arranged around said second discontinuous perimeter, and further comprising a bushing surrounding said second discontinuous perimeter and including a surface for sliding over said protuberances to drive said inside wedge sections inwardly.
8. The core device according to claim 3, wherein said outside wedge sections are tapered in a radially inward direction and said inside wedge sections are tapered in a radially outward direction, wherein at least said inside wedge sections comprise outside protuberances arranged around said second discontinuous perimeter, and further comprising a bushing surrounding said second discontinuous perimeter and including a surface for sliding over said protuberances to drive said inside wedge sections inwardly.
9. The core device according to claim 3, wherein said first base comprises a cap portion and said second base comprises a ring portion that is fittable into said cap portion.
10. The core device according to claim 9, wherein said outside wedge sections are tapered in a radially inward direction and said inside wedge sections are tapered in a radially outward direction and said overall perimeter is a substantially continuous surface.
US10/906,413 2005-02-18 2005-02-18 Collapsible core using two sleeves and is spring loaded Abandoned US20060188601A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US10/906,413 US20060188601A1 (en) 2005-02-18 2005-02-18 Collapsible core using two sleeves and is spring loaded
US11/143,528 US7293341B2 (en) 2005-02-18 2005-06-02 Collapsible core assembly for a molding apparatus
EP06735268A EP1853414A4 (en) 2005-02-18 2006-02-16 Collapsible core assembly for a molding apparatus
DE112006000403T DE112006000403T5 (en) 2005-02-18 2006-02-16 Retractable core assembly for a mold apparatus
CA002646402A CA2646402A1 (en) 2005-02-18 2006-02-16 Collapsible core assembly for a molding apparatus
CN2006800128668A CN101448620B (en) 2005-02-18 2006-02-16 Collapsible core assembly for a molding apparatus
PCT/US2006/005516 WO2006089049A1 (en) 2005-02-18 2006-02-16 Collapsible core assembly for a molding apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/906,413 US20060188601A1 (en) 2005-02-18 2005-02-18 Collapsible core using two sleeves and is spring loaded

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/143,528 Continuation-In-Part US7293341B2 (en) 2005-02-18 2005-06-02 Collapsible core assembly for a molding apparatus

Publications (1)

Publication Number Publication Date
US20060188601A1 true US20060188601A1 (en) 2006-08-24

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
US10/906,413 Abandoned US20060188601A1 (en) 2005-02-18 2005-02-18 Collapsible core using two sleeves and is spring loaded
US11/143,528 Expired - Lifetime US7293341B2 (en) 2005-02-18 2005-06-02 Collapsible core assembly for a molding apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/143,528 Expired - Lifetime US7293341B2 (en) 2005-02-18 2005-06-02 Collapsible core assembly for a molding apparatus

Country Status (3)

Country Link
US (2) US20060188601A1 (en)
CN (1) CN101448620B (en)
CA (1) CA2646402A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070269551A1 (en) * 2006-05-18 2007-11-22 I-Chung Liao Mold structure of spike
KR100902916B1 (en) 2008-07-08 2009-06-15 김혜숙 Collapsible Core
US20110151049A1 (en) * 2006-11-01 2011-06-23 Mueller Hans Device at a Collapsible Core, Preferably at Injection-Moulding Tool for Plastic Material, Silicone, Rubber and Similar Material
US20130224328A1 (en) * 2012-02-23 2013-08-29 Xian-Yan Fang Demolding mechanism for molded article having internal thread
EP2778384A4 (en) * 2011-11-10 2014-09-17 Aisin Seiki Mold for molding resin for intake manifold, intake manifold, and method for molding resin for intake manifold

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMO20070055A1 (en) * 2007-02-21 2008-08-22 Sacmi MOLD DEVICE FOR FORMING OBJECTS
US20090152770A1 (en) * 2007-08-07 2009-06-18 Canon Virginia Inc. Mechanically collapsible core for injection molding
US8002538B2 (en) * 2007-11-13 2011-08-23 Garry Zydron Collapsible core assembly for a molding apparatus
US20090127726A1 (en) * 2007-11-21 2009-05-21 Spalding John C System and Method for Molding Intraocular Lenses
JP4096066B1 (en) * 2007-11-27 2008-06-04 株式会社テクノクラーツ Undercut processing mechanism
US8033810B2 (en) * 2009-06-17 2011-10-11 Progressive Components International Corporation Lock for core assembly for injection molding tool
US8714513B2 (en) * 2010-10-07 2014-05-06 GM Global Technology Operations LLC Mold insert assembly and method of use
CA2827518C (en) * 2011-03-11 2016-09-20 Progressive Components International Corporation Collapsing core part retainer sleeve
US8585392B2 (en) 2011-05-24 2013-11-19 F&S Tool, Inc. Compression molding with successive stage cooling channels
CN103386746B (en) * 2012-05-10 2016-02-24 苏州星诺奇传动科技有限公司 Demoulding control system
USD733198S1 (en) 2013-10-24 2015-06-30 Paradise Mold and Die LLC Set of six components of a collapsible core of a mold
US9808975B2 (en) 2013-10-24 2017-11-07 Paradise Mold and Die LLC Collapsible core of a mold for forming internal features such as threads
FR3020980B1 (en) * 2014-05-19 2016-07-01 Mohammed Seiffeddine Bou-Mezrag MOLD FOR CLIPSABLE BOTTLE
MX2017002634A (en) 2014-08-29 2017-06-07 Keter Plastic Ltd Segmented molding core system of an injection mould, a method of injection molding a hollow articles formed thereby.
CN105522689B (en) 2014-09-28 2018-03-16 汤铨波 Core device for manufacturing container cover
TW201615379A (en) * 2014-10-17 2016-05-01 綠點高新科技股份有限公司 Injection molding method and mold mechanism
US9962864B2 (en) * 2015-03-03 2018-05-08 Doskocil Manufacturing Company, Inc. Method of molding product having hollow interior region
JP6489112B2 (en) * 2016-12-21 2019-03-27 トヨタ自動車株式会社 Core transport device and core transport method
US10562212B2 (en) 2017-01-04 2020-02-18 Gerald Sutton Process and apparatus to injection mold continuous lengths of hollow plastic articles
DE102018217546A1 (en) * 2018-10-12 2020-04-16 Volkswagen Ag Casting mold for producing a casting, which has at least one inner contour
US20210308967A1 (en) * 2020-04-07 2021-10-07 Rohr, Inc. Hybrid mandrel for use in tooling methods and the manufacture of thrust reverser cascades and structures susceptible to trapped tooling

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US3247548A (en) * 1962-05-28 1966-04-26 Roehr Metals & Plastics Compan Apparatus for making a molded article
US3632264A (en) * 1969-11-26 1972-01-04 Phillips Petroleum Co Neck-forming collet having alternate inverted wedge-shaped jaws
US3655323A (en) * 1970-03-09 1972-04-11 Oasis Electronics Molding die structure
US4021180A (en) * 1974-12-20 1977-05-03 Standard Oil Company (Indiana) Collapsible core
US4533312A (en) * 1982-12-27 1985-08-06 Holdt J W Von Simplified collapsible mold core
US4618121A (en) * 1984-08-15 1986-10-21 American Safety Closure Corp. Mold for forming plastic cap with perforation about the periphery of the skirt
US4627810A (en) * 1985-09-26 1986-12-09 Holdt J W Von Collapsible core
US4723430A (en) * 1986-02-18 1988-02-09 Adolph Coors Company Apparatus and method for forming a surface configuration on a can body
US4919608A (en) * 1988-10-04 1990-04-24 Roehr Tool Corporation Molding apparatus with collapsible core
US4938679A (en) * 1989-05-18 1990-07-03 Cores Unlimited, A Partnership Collapsible core for molding closures having interrupted interior threads and the like
US6506330B1 (en) * 1998-03-17 2003-01-14 Lothar Schweigert Apparatus and method for molding plastic closures

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US4286766A (en) 1980-04-18 1981-09-01 Holdt J W Von Collapsible mold core
JP2585601B2 (en) * 1987-06-05 1997-02-26 東陶機器株式会社 Core structure for molding equipment
US7476354B2 (en) * 2004-09-22 2009-01-13 Clack Corporation Method and apparatus for making a blow molded article with integral insert

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247548A (en) * 1962-05-28 1966-04-26 Roehr Metals & Plastics Compan Apparatus for making a molded article
US3632264A (en) * 1969-11-26 1972-01-04 Phillips Petroleum Co Neck-forming collet having alternate inverted wedge-shaped jaws
US3655323A (en) * 1970-03-09 1972-04-11 Oasis Electronics Molding die structure
US4021180A (en) * 1974-12-20 1977-05-03 Standard Oil Company (Indiana) Collapsible core
US4533312A (en) * 1982-12-27 1985-08-06 Holdt J W Von Simplified collapsible mold core
US4618121A (en) * 1984-08-15 1986-10-21 American Safety Closure Corp. Mold for forming plastic cap with perforation about the periphery of the skirt
US4627810A (en) * 1985-09-26 1986-12-09 Holdt J W Von Collapsible core
US4723430A (en) * 1986-02-18 1988-02-09 Adolph Coors Company Apparatus and method for forming a surface configuration on a can body
US4919608A (en) * 1988-10-04 1990-04-24 Roehr Tool Corporation Molding apparatus with collapsible core
US4938679A (en) * 1989-05-18 1990-07-03 Cores Unlimited, A Partnership Collapsible core for molding closures having interrupted interior threads and the like
US6506330B1 (en) * 1998-03-17 2003-01-14 Lothar Schweigert Apparatus and method for molding plastic closures

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070269551A1 (en) * 2006-05-18 2007-11-22 I-Chung Liao Mold structure of spike
US20110151049A1 (en) * 2006-11-01 2011-06-23 Mueller Hans Device at a Collapsible Core, Preferably at Injection-Moulding Tool for Plastic Material, Silicone, Rubber and Similar Material
KR100902916B1 (en) 2008-07-08 2009-06-15 김혜숙 Collapsible Core
EP2778384A4 (en) * 2011-11-10 2014-09-17 Aisin Seiki Mold for molding resin for intake manifold, intake manifold, and method for molding resin for intake manifold
US9617957B2 (en) 2011-11-10 2017-04-11 Aisin Seiki Kabushiki Kaisha Resin molding mold for intake manifold, intake manifold and method of resin molding for intake manifold
US20130224328A1 (en) * 2012-02-23 2013-08-29 Xian-Yan Fang Demolding mechanism for molded article having internal thread

Also Published As

Publication number Publication date
CA2646402A1 (en) 2006-08-24
CN101448620B (en) 2013-04-03
US20060188602A1 (en) 2006-08-24
US7293341B2 (en) 2007-11-13
CN101448620A (en) 2009-06-03

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Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION

AS Assignment

Owner name: PROGRESSIVE COMPONENTS INTERNATIONAL CORPORATION,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ZYDRON, GARRY, MR.;REEL/FRAME:019879/0323

Effective date: 20060518