WO2005095084A1 - Mold assembly - Google Patents
Mold assembly Download PDFInfo
- Publication number
- WO2005095084A1 WO2005095084A1 PCT/US2004/036619 US2004036619W WO2005095084A1 WO 2005095084 A1 WO2005095084 A1 WO 2005095084A1 US 2004036619 W US2004036619 W US 2004036619W WO 2005095084 A1 WO2005095084 A1 WO 2005095084A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mating
- mold
- mating mold
- parting line
- actuating pin
- Prior art date
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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
-
- 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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/058—Undercut
Definitions
- Mold assemblies to which the present invention pertains comprise mating mold components defining at least one mold cavity, the mating mold components being carried by molding machine members moveable relative to each other for joining and separating the mold components.
- At least one mating component comprises a primary mold core element and at least one mating component comprises a primary mold cavity element, the mold components meeting on faces at a so called parting line of the mold assembly (so called parting line faces).
- the present invention provides a mold assembly comprising first and second mating mold components, one of the first and second mating mold components comprising a primary core element and the other of the first and second mating mold components comprising a primary cavity element, the first and second mating mold components meeting on parting line faces thereof, a slide member for carrying a supplemental core element, the slide member supported by and moveable relative to a first mating mold component, the slide member having an opening therein, and an actuating pin for engaging the opening in the slide member to effect movement thereof with movement of the first and second mold components relative to one another, the actuating pin being removably retained in a support opening in the parting line face of the second mating mold component by means accessible from the second mating mold component parting line face and being supported in the second mating mold component at an angle oblique to the second mating mold component parting line face.
- Fig. 1 is a sectional view of a portion of mating mold components of a mold assembly in accordance with the invention, the mating mold components shown joined.
- Fig. 2 is a sectional view of the portion of mating mold components of Fig. 1 , the mating mold components shown separated.
- Fig. 3 is a three dimensional view of the actuating pin shown in Fig. 1.
- mold assembly 10 comprises first and second mating mold components 12 and 14 and a supplemental mold core element 16 mounted to moveable slide member 18.
- First and second mating mold components 12 and 14 meet at faces thereof along parting line 20 and carry primary cavity and primary core elements 22 and 24 defining the shape of an article to be molded (only a portion of primary cavity and primary core elements being shown in Figs. 1 and 2).
- the faces of mating mold components 12 and 14 meeting at parting line 20 are referred to herein and in the appended claims as the parting line faces.
- Material being molded shown in Fig. 1 at 50, fills a mold cavity defined by primary cavity and primary core elements 22 and 24 and supplemental mold core element 16. With primary cavity and primary core elements 22 and 24 joined, slide member 18 and supplemental mold core element 16 are held in place by abutment of heel block 26 and slide member 18. Heel block 26 is fixed to mating mold component 12.
- Mating mold component 12 advantageously comprises cavity base plate 28 and cavity retention plate 30 to which primary cavity element 22 is secured.
- Mating mold component 14 advantageously comprises core base plate 32 and core retention plate 34 to which primary core element 24 is secured.
- mating mold component 12 may as well comprise a unitary element including primary cavity defining features formed therein.
- mating mold component 14 may comprise a unitary element including a recess for slide member 18 and p ⁇ mary core defining features formed thereon.
- supplemental mold core element is illustrated as an element distinct from the slide ' by which it is carried, slide member 18 may as well be a unitary element with supplemental core defining features formed thereon.
- Mating mold components 12 and 14 are supported by machine members for relative movement to join and separate primary cavity and primary core mold elements 22 and 24, the movement being bi-directional as indicated by the double headed arrows at parting line 20. While in the typical injection molding machine one mating mold component is stationary and one is moveable, the present invention is concerned only with the movement of mating mold components 12 and 14 relative to each other, irrespective of whether one or both actually move. In addition to separation of primary cavity and primary core elements 22 and 24, removal of a molded article requires translation of supplemental mold core element 16 away from molded material 50. Movement of slide member 18 is effected by passive actuation through cooperation of opening 36 in slide member 18 and actuating pin 38.
- opening 36 and actuating pin 38 are arranged obliquely to the direction of relative movement of mating mold components 12 and 14. With actuating pin 38 engaging surfaces of opening 36, relative movement of mating mold components 12 and 14 is resolved into a component transverse to the direction of movement of the mating mold components. Hence, relative movement of the mating mold components 12 and 14 to join primary cavity and primary core elements 22 and 24 will translate slide member 18 and supplemental core element 16 toward primary core element 24 and will bring heel block 26 into abutting contact with slide member 18, as shown in Fig. 1.
- actuating pin 38 is removably retained in support opening 48 in the parting line face of mating mold component 12, support opening 48 being closed within mating mold component 12. Actuating pin 38 is inserted into and removed from support opening 48 from the parting line face of mold component 12.
- Actuating pin 38 is removably retained in support opening 48 by means accessible at the parting line face of mating mold component 12.
- key 40 is mounted to the parting line face of mating mold component 12 and engages notch 44 (Fig. 3) of actuating pin 38 to hold actuating pin 38 in support opening 48.
- Key 40 is fixed to mating mold component 12 by a fastener such as screw 46.
- a fastener such as screw 46.
- relief is provided in one or both of the parting line face of mating mold component 12 and the facing surface of slide 18.
- key 40 is received within recess 42 in the parting line face of mating mold component 12.
- actuating pin 38 is headless, that is, does not have an enlarged end diameter forming a shoulder for seating against a support surface. Rather, actuating pin 38 has a notch 44 in the periphery thereof, notch 44 being engaged by retaining means to retain actuating pin 38 in a support opening such as support opening 48 open only at the parting line face of mating mold component 12.
- actuating pin 38 is chamfered at the end received within support opening 48 for ease of insertion thereinto.
- actuating pin 38 is advantageously conical at the end engaging opening 36 in slide member 18. As shown in Fig.
- notch 44 is advantageously made to align with the line of intersection of the parting line face with the longitudinal axis of actuating pin 38 as pin 38 is oriented when retained in support opening 48.
- notch 44 may be aligned with a perpendicular to the longitudinal axis of actuating pin 38, and the relief for key 40 at the parting line made to accommodate the consequent inclination of key 40 relative to the parting line faces.
- the present invention overcomes disadvantages of known arrangements for passive actuation of supplemental mold core elements wherein actuating pins are retained in openings through mating mold components by retaining means accessible only from the face of the mating mold component opposite the parting line face thereof.
- the present invention overcomes the need for an opening through a mating mold component, and consequently overcomes the disadvantage of such through openings restricting placement within the mating mold component of conduits for, for example, heat transfer fluid.
- the means for retaining the actuating pin in the mating mold component accessible from the parting line face of the mating mold component, the need for removal and/or disassembly of mold assemblies to replace actuating pins is overcome.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0418659-1A BRPI0418659A (en) | 2004-03-17 | 2004-11-03 | mold set |
AU2004318032A AU2004318032B2 (en) | 2004-03-17 | 2004-11-03 | Mold assembly |
CA002557370A CA2557370C (en) | 2004-03-17 | 2004-11-03 | Mold assembly |
EP04800678A EP1812217A1 (en) | 2004-03-17 | 2004-11-03 | Mold assembly |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/801,183 US7104774B2 (en) | 2004-03-17 | 2004-03-17 | Mold assembly |
US10/801183 | 2004-03-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005095084A1 true WO2005095084A1 (en) | 2005-10-13 |
Family
ID=34959360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2004/036619 WO2005095084A1 (en) | 2004-03-17 | 2004-11-03 | Mold assembly |
Country Status (8)
Country | Link |
---|---|
US (1) | US7104774B2 (en) |
EP (1) | EP1812217A1 (en) |
KR (1) | KR100844548B1 (en) |
CN (1) | CN1950187A (en) |
AU (1) | AU2004318032B2 (en) |
BR (1) | BRPI0418659A (en) |
CA (1) | CA2557370C (en) |
WO (1) | WO2005095084A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2487665A (en) * | 2011-01-31 | 2012-08-01 | Juan Carlos Calabresse Muzzi | Injection moulding of a bicycle frame |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2874350B1 (en) * | 2004-08-18 | 2007-12-21 | Faurecia Interieur Ind Snc | MOLD FOR INJECTION MOLDING OF A PLASTIC PIECE AND MOLDING METHOD |
US20070281051A1 (en) * | 2006-05-31 | 2007-12-06 | Cerniglia Anthony J | Angle pin roller guide |
US7549856B2 (en) * | 2007-05-10 | 2009-06-23 | Cheng Uei Precision Industry Co., Ltd. | Side core-pulling mechanism of mold |
CN101419321B (en) * | 2007-10-22 | 2011-06-08 | 鸿富锦精密工业(深圳)有限公司 | Dental plate for making the lens cone and method for making the lens cone using the dental plate |
US7481648B1 (en) * | 2007-11-16 | 2009-01-27 | Cheng Uei Precision Industry Co., Ltd. | Side mold working mechanism |
US20090181119A1 (en) * | 2008-01-15 | 2009-07-16 | Chih-Yu Chen | Lateral core-pulling mechanism of mold |
CN101596571B (en) * | 2008-06-04 | 2011-11-30 | 鸿富锦精密工业(深圳)有限公司 | Thread forming template structure |
KR101038485B1 (en) * | 2009-02-26 | 2011-06-01 | 제임스강 | Slide Die Casting Device for Amorphous Substance Capable of Machining a Slid Hole at Die Casting |
US20120076887A1 (en) * | 2010-09-27 | 2012-03-29 | Cheng Uei Precision Industry Co., Ltd. | Mould having core-pulling mechanism |
US8142185B1 (en) * | 2010-09-30 | 2012-03-27 | Cheng Uei Precision Industry Co., Ltd. | Injection mold forming a product having a barbed structure |
US8197246B1 (en) * | 2010-12-03 | 2012-06-12 | Cheng Uei Precision Industry Co., Ltd. | Plastic injection mold |
US20120183640A1 (en) * | 2011-01-14 | 2012-07-19 | Cheng Uei Precision Industry Co., Ltd. | Injection mold |
US8349240B2 (en) | 2011-03-25 | 2013-01-08 | Honda Motor Co., Ltd. | Hidden parting line mold and hidden parting line molding technique using associated part removal device |
US9017062B2 (en) * | 2011-06-01 | 2015-04-28 | Alberto Navarra Pruna | Compact slide rail for injection molds |
TWI527678B (en) * | 2013-06-28 | 2016-04-01 | 緯創資通股份有限公司 | Injection molding module and injection molding method thereof |
JP5887596B2 (en) * | 2014-01-29 | 2016-03-16 | 満行 根建 | Mold for operation knob molding |
CN113508020B (en) * | 2018-12-06 | 2023-10-03 | 马克·来考尔斯 | Molding and slide system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH068286A (en) * | 1992-06-29 | 1994-01-18 | Mitsubishi Materials Corp | Mold assembly |
US5536161A (en) * | 1993-11-05 | 1996-07-16 | North America Packaging Corporation | Double lock pail mold |
JPH08281726A (en) * | 1995-04-11 | 1996-10-29 | Sekisui Chem Co Ltd | Injection mold and injection molding method |
US6093015A (en) * | 1999-01-11 | 2000-07-25 | D-M-E Company | Mold core positioning device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3811645A (en) | 1973-01-05 | 1974-05-21 | K Feist | Slide retainer and positioner |
US4383819A (en) * | 1980-07-16 | 1983-05-17 | Letica Corporation | Apparatus for forming a container |
US4768747A (en) * | 1987-07-31 | 1988-09-06 | Williams John B | Slide clip |
US5234329A (en) | 1992-10-02 | 1993-08-10 | Vandenberg Leo A | Angle pin assembly |
US5824256A (en) * | 1996-12-05 | 1998-10-20 | Fortiflex, Inc. | Method of molding a thermoplastic container |
AU6697098A (en) | 1997-03-10 | 1998-09-29 | Progressive Components International Corporation | Molding side-action mechanism and method |
US6126429A (en) * | 1998-06-02 | 2000-10-03 | Burger Engineering, Inc. | Combination slide retainer and position sensing switch for injection molds |
US6443723B1 (en) | 1999-11-04 | 2002-09-03 | D-M-E Company | Slide retainer for an injection mold |
-
2004
- 2004-03-17 US US10/801,183 patent/US7104774B2/en active Active
- 2004-11-03 EP EP04800678A patent/EP1812217A1/en not_active Withdrawn
- 2004-11-03 KR KR1020067021500A patent/KR100844548B1/en not_active IP Right Cessation
- 2004-11-03 WO PCT/US2004/036619 patent/WO2005095084A1/en active Application Filing
- 2004-11-03 AU AU2004318032A patent/AU2004318032B2/en not_active Ceased
- 2004-11-03 BR BRPI0418659-1A patent/BRPI0418659A/en not_active IP Right Cessation
- 2004-11-03 CN CNA200480042479XA patent/CN1950187A/en active Pending
- 2004-11-03 CA CA002557370A patent/CA2557370C/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH068286A (en) * | 1992-06-29 | 1994-01-18 | Mitsubishi Materials Corp | Mold assembly |
US5536161A (en) * | 1993-11-05 | 1996-07-16 | North America Packaging Corporation | Double lock pail mold |
JPH08281726A (en) * | 1995-04-11 | 1996-10-29 | Sekisui Chem Co Ltd | Injection mold and injection molding method |
US6093015A (en) * | 1999-01-11 | 2000-07-25 | D-M-E Company | Mold core positioning device |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 018, no. 206 (M - 1591) 12 April 1994 (1994-04-12) * |
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 02 28 February 1997 (1997-02-28) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2487665A (en) * | 2011-01-31 | 2012-08-01 | Juan Carlos Calabresse Muzzi | Injection moulding of a bicycle frame |
NL2008187A (en) * | 2011-01-31 | 2012-08-01 | Juan Carlos Calabresse Muzzi | Mold and process for obtaining a bicycle frame made of recyclable polymer. |
FR2970896A1 (en) * | 2011-01-31 | 2012-08-03 | Muzzi Juan Carlos Calabresse | MOLD FOR OBTAINING RECYCLABLE POLYMER BICYCLE FRAME, AND CORRESPONDING METHOD |
Also Published As
Publication number | Publication date |
---|---|
CA2557370C (en) | 2009-10-20 |
EP1812217A1 (en) | 2007-08-01 |
BRPI0418659A (en) | 2007-05-29 |
US7104774B2 (en) | 2006-09-12 |
US20050208172A1 (en) | 2005-09-22 |
KR20060129536A (en) | 2006-12-15 |
KR100844548B1 (en) | 2008-07-08 |
CA2557370A1 (en) | 2005-10-13 |
CN1950187A (en) | 2007-04-18 |
AU2004318032A1 (en) | 2005-10-13 |
AU2004318032B2 (en) | 2008-01-31 |
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