US3811645A - Slide retainer and positioner - Google Patents

Slide retainer and positioner Download PDF

Info

Publication number
US3811645A
US3811645A US00321204A US32120473A US3811645A US 3811645 A US3811645 A US 3811645A US 00321204 A US00321204 A US 00321204A US 32120473 A US32120473 A US 32120473A US 3811645 A US3811645 A US 3811645A
Authority
US
United States
Prior art keywords
mold
slide
jaws
dowel pin
cam
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.)
Expired - Lifetime
Application number
US00321204A
Other languages
English (en)
Inventor
K Feist
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.)
FEIST MANUFACTURING Corp
Original Assignee
K Feist
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 K Feist filed Critical K Feist
Priority to US00321204A priority Critical patent/US3811645A/en
Priority to CA187,076A priority patent/CA1010619A/en
Priority to FR7342682A priority patent/FR2213145B1/fr
Priority to GB5603073A priority patent/GB1408659A/en
Priority to DE2361238A priority patent/DE2361238C2/de
Priority to JP14192773A priority patent/JPS533774B2/ja
Priority to BE2053333A priority patent/BE809362A/xx
Priority to IT19118/74A priority patent/IT1006746B/it
Application granted granted Critical
Publication of US3811645A publication Critical patent/US3811645A/en
Assigned to UNITED NATIONAL BANK & TRUST CO., POST OFFICE BOX 190, 123 CENTRAL PLAZA SOUTH, CANTON, OHIO, 44701, A CORP OF OHIO reassignment UNITED NATIONAL BANK & TRUST CO., POST OFFICE BOX 190, 123 CENTRAL PLAZA SOUTH, CANTON, OHIO, 44701, A CORP OF OHIO ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FEIST MANUFACTURING CORPORATION
Anticipated expiration legal-status Critical
Assigned to FEIST MANUFACTURING CORPORATION reassignment FEIST MANUFACTURING CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: UNITED NATIONAL BANK & TRUST COMPANY
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • Y10S425/005—Cammed
    • 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

  • ABSTRACT A slide retainer and positioner for molds having at least one cam-actuated slide for pulling a core element vlaterally of the mold cavity as the mating mold parts are opened, said slide retainer and positioner being embodied wholly within the mold at all times and adapted to yieldingly clamp the slide in cam-aligned position only when the mold is opened without restraining the'openingv andclosing movement of the slide.
  • spring retainers have to be positioned to extend outwardly between the tie rods of the molding machine, and whenever the mold is inserted or removed from the machine it is necessary to remove all of the projecting parts of the spring retainer assemblies in order to get the mold past the tie rods.
  • pre-loading the retainer springs requires an additional assembly operation, and when the moldis closed and the springs are fully compressed, there is always danger of breakage of the spring assemblies with consequent injury to workmen and loss of production time. In some cases safety housings for the springs have been provided but this adds expense and does not prevent loss of production time if the spring breaks.
  • the pressure of the spring retainers is applied to the slidably engaging surfaces of the pins and bores during the entire movement of the pins therein, with consequent galding of the engaging surfaces.
  • an extra large crate is required to enclose the projecting spring retainers, and an additional clamping plate is required to hold the mold parts together against the opening action of the retainer springs.
  • Another and more specific'object is to provide an improved slide retainer and positioner which is embodied wholly within the mold so as not to interfere with the machine tie rods during operation or during installation or removal of the mold from the machine.
  • a further object is to provide an improved slide retainer and positioner which does not require a separate housing for protection in case of breakage as it is always fully enclosed within the mold.
  • Another object is to provide an improved slide retainer and positioner in which spring pressure is applied to the slidably engaging surfaces of the cam actuating means only at the end of the slide-opening movement so as to minimize frictional wear on said surfaces.
  • a still further object is to provide an improved slide retainer and positioner which does not increase the crating size of the mold for shipment, and which does not require additional clamping means to hold the mold parts together during shipment.
  • FIG. 1 is a side elevational view of an injection molding machine having mating mold parts embodying the improved slide retainers and positioners.
  • FIG. 2 is an enlarged partial sectionalview through a similar mold of an injection molding machine equipped with the prior conventional compression spring retainers for holding the slides in laterally outward aligned positions when the mold is fully opened.
  • FIG. 3 is an enlarged vertical sectional ,view of the mold of FIG. 1 in closed position, taken substantially on line 3-3 of FIG. 5.
  • FIG. 4 is a similar view showing the mold in fully open position.
  • FIG. 1 a simple injection molding machine is shown therein somewhat schematically, comprising the material feed hopper 10, the housing 11 for the ram and heater, the nozzle 12, the mold parts indicated generally at I3aand 13b held together between stationary pressure plate 14 and movable pressure plate 15.
  • Plate 14 is supported on a base 16 and is connected by tie rods 17 to a plate 18 mounted on the base and supporting one end of the fluid cylinder 19 for actuating the movable pressure plate 15.
  • Cylinder 19 has a piston rod 20 connected to the movable plate 15, on which mold part 13b is mounted, for reciprocating it on the tie rods to open and close the mold.
  • the mating mold parts 13a and 13b abut each other at the parting line P in closed position, forming between them four like mold cavities 22 for molding parts therein.
  • the feed material from the hopper is heated and then injected by the ram through nozzle 12 and sprue 23 to the runner 24 and thence through gate openings 25 into the cavities 22.
  • Core plates 26 extend laterally into each pair of cavities 22 at the parting line.
  • Extending axially of the mold part 13b are four bores, one from each cavity 22, in which knock-out rods 27 may be mounted for aiding in removal of the molded parts when the mold is opened.
  • the knock-out rods are operated by a knockout plate 28, in a usual manner.
  • the mold part 13a is provided with cam elements or horn pins 30, one for each core plate 26, which are inclined to the parting line and in planes parallel to the direction of movement of mold part 13b.
  • These horn pins are rigidly secured in mold part 13a and slidably engage inclined cam surfaces or bores in slides connected to the core plates 26 to move the core plates laterally out of the mold cavities as the mold is opened by moving part 13b away from part 13a on the tie rods 17.
  • Recesses 31 and 32 are provided in the plates of mold part 1317 to receive the horn pins in mold closed position.
  • the inclined bores 34 for the horn pins are formed in slides 35 mounted for lateral sliding movement in guide rails 36 on opposite sides of the slide having flanges overlying side flanges on the slides.
  • the slides and guide rails are mounted in recesses 37 in mold part 13b at the parting line P, and the recesses 37 extend laterally outward a sufficient distance to accommodate the improved slide retainers for holding the slides in aligned positions with the horn pins after the pins have moved out of the bores 34 when the mold is fully opened, as shown in FIG. 4.
  • the outer edges of the core plates 26 are recessed into the inner ends of the slides 35 and are secured thereto by screws 38, and the surfaces of the slides merge with the surfaces of the core plates at the parting line P.
  • the opposite surfaces of the slides slide on wear plates 39 secured in the bottoms of recesses 37.
  • the outer ends of the slides have inclined surfaces parallel to the horn pins which in mold-closed position engage similarly inclined surfaces on pressure pads 40 secured to the mold part 13a by screws 41 to lock the slides in place.
  • the improved slide retainers indicated as a whole at 43 are mounted in sub recesses 44 within the recesses 37 below the level of the slides and laterally outward of the slides in the closed position of the mold.
  • the retainers each comprise a pair of opposed jaw elements 45a and 45b having interengaging clevises 46a and 46b intermediate their ends pivoted on a stud 47 screwed into the base of the sub recess 44.
  • a pre-loaded compression spring 48 is interposed between the outer ends of the jaw elements, and their inner ends are provided with opposed cam surfaces 49 connected to undercut arcuate surfaces 50 for yieldably receiving and clamping a dowel pin 51 secured in and depending from the outer end of the slide 35.
  • the sliding engagement of the horn pins 30 with the bores 34 moves the slides and the connected core plates 26 laterally outward of the mold cavities.
  • the dowel pins 51 enter between the cam surfaces 49 of the jaws forcing them slightly apart against the pressure of spring 48 until the pins 51 are yieldably engaged by the arcuate surfaces 50.
  • the novel slide retainer and positioner is embodied wholly within the mold so as not to interfere with machine tie rods during operation of the machine or while changing molds, and there is no danger from breakage as the springs and retainer assemblies are always fully enclosed, and no requirement for separate spring housings.
  • the spring retainer operates only when the horn pins are disengaged from their cooperating bores so that no restraining force is exerted on the slidingly engaging surfaces of the pins and bores during the mold opening and closing movements and no opening force tending to open the mold when assembled for shipment. Moreover, since there are no projecting spring retainer assemblies the shipping size of the mold is minimized.
  • the slides are connected to pull rods which project outwardly of the mold, and each slide is urged laterally outward by a pre-loaded compression spring 156 interposed between the washer 157 at the outer end of the rod 155 and a stop plate 158 on the side of the mold part 13b against which the slide abuts when fully retracted.
  • a safety spring housing is indicated at 160 which projects beyond the end of rod 155 sufficiently v to allow for the retraction movement.
  • a mold having at least two mating parts abutting at a parting line and forming a mold cavity and at least one cam-actuated slide for moving a core part laterally outward and inward of said cavity during opening and closing of the mold, the improvement comprising slide retainer and positioner means wholly enclosed within the mold and having spring-biased jaws for yieldingly gripping an element on the slide to hold it in aligned position only at the end of the cam-actuated laterally outward movement thereof and releasing said element at the beginning of the cam-actuated laterally inward movement thereof.
  • the spring-biased jaws comprise -a pair of jaws pivotally connected intermediate their ends, said jaws having opposed jaw surfaces at one end and compression spring means interposed between their other ends.
  • the spring-biased jaws comprise a pair of jaws pivotally connected intermediate their ends, said jaws having opposed jaw surfaces at one end and compression spring means interposed between their other ends.
US00321204A 1973-01-05 1973-01-05 Slide retainer and positioner Expired - Lifetime US3811645A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US00321204A US3811645A (en) 1973-01-05 1973-01-05 Slide retainer and positioner
CA187,076A CA1010619A (en) 1973-01-05 1973-11-30 Slide retainer and positioner for a mold with cam-actuated slide
FR7342682A FR2213145B1 (de) 1973-01-05 1973-11-30
GB5603073A GB1408659A (en) 1973-01-05 1973-12-04 Mould core retainer and positioner
DE2361238A DE2361238C2 (de) 1973-01-05 1973-12-08 Rastvorrichtung für einen an einem Formteil einer Spritzgießform in der Formtrennebene geführten Formschieber
JP14192773A JPS533774B2 (de) 1973-01-05 1973-12-20
BE2053333A BE809362A (fr) 1973-01-05 1974-01-03 Glissiere de retenue et de fonctionnement pour des noyaux mobiles a l'interieur de moules
IT19118/74A IT1006746B (it) 1973-01-05 1974-01-04 Dispositivo di posizionamento e ri tenzione della slitta in uno stam po a iniezione

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00321204A US3811645A (en) 1973-01-05 1973-01-05 Slide retainer and positioner

Publications (1)

Publication Number Publication Date
US3811645A true US3811645A (en) 1974-05-21

Family

ID=23249634

Family Applications (1)

Application Number Title Priority Date Filing Date
US00321204A Expired - Lifetime US3811645A (en) 1973-01-05 1973-01-05 Slide retainer and positioner

Country Status (8)

Country Link
US (1) US3811645A (de)
JP (1) JPS533774B2 (de)
BE (1) BE809362A (de)
CA (1) CA1010619A (de)
DE (1) DE2361238C2 (de)
FR (1) FR2213145B1 (de)
GB (1) GB1408659A (de)
IT (1) IT1006746B (de)

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063862A (en) * 1975-06-23 1977-12-20 Arne Johansson Forming apparatus for synthetic-material tubes
US4082245A (en) * 1976-11-26 1978-04-04 Adelino Claudio Santos Ejector retraction mechanism
US4515342A (en) * 1984-04-06 1985-05-07 Borislav Boskovic Slide retainer
US4717113A (en) * 1985-06-18 1988-01-05 Eee Co., Inc. Segmented injection mold system
US4765585A (en) * 1987-02-27 1988-08-23 Superior Die Set Corporation Slide retainer for injection molds
US4961702A (en) * 1989-02-21 1990-10-09 Fairchild Industries, Inc. Retainer for injection molds
US4998875A (en) * 1990-02-28 1991-03-12 D & L Incorporated Mold with slide retainer
ES2046938A2 (es) * 1991-09-16 1994-02-01 Navarra Pruna Alberto Mejoras introducidas en los medios de fijacion de las guias inclinadas al cuerpo del molde, en moldes de inyeccion.
US5312243A (en) * 1992-04-01 1994-05-17 Mertz James E Slide retainer for an injection mold
US5407344A (en) * 1993-07-12 1995-04-18 Lake Center Industries, Inc. Single direction cam for insert molding machine
US5536161A (en) * 1993-11-05 1996-07-16 North America Packaging Corporation Double lock pail mold
WO2000041869A1 (en) * 1999-01-11 2000-07-20 D-M-E Company Mold core positioning device
WO2001032393A1 (en) * 1999-11-04 2001-05-10 D-M-E Company Slide retainer for an injection mold
US6450797B1 (en) 2001-03-01 2002-09-17 Stackteck Systems Limited Compact slide actuation mold
US20050098295A1 (en) * 2002-09-26 2005-05-12 Dubay Richard L. Universal slide assembly for molding and casting systems
US20050208172A1 (en) * 2004-03-17 2005-09-22 Joseph Buttigieg Mold assembly
US20060034973A1 (en) * 2002-11-05 2006-02-16 Hoogland Hendricus A Apparatus and method for manufacturing holders, in particular crates
US7140868B1 (en) 2003-10-27 2006-11-28 Hs Die & Engineering, Inc. Universal lifter foot assembly for removal of core block from mold
US20070243286A1 (en) * 2006-04-18 2007-10-18 Cheng Uei Precision Industry Co., Ltd. Angular ejector mechanism and injection mold with the same
US20070281051A1 (en) * 2006-05-31 2007-12-06 Cerniglia Anthony J Angle pin roller guide
US20080085337A1 (en) * 2004-07-16 2008-04-10 Cerniglia Anthony J Retaining device
US20080175946A1 (en) * 2007-01-22 2008-07-24 Samsung Electronics Co., Ltd. Injection molding apparatus
US7481648B1 (en) * 2007-11-16 2009-01-27 Cheng Uei Precision Industry Co., Ltd. Side mold working mechanism
US20090104303A1 (en) * 2007-10-22 2009-04-23 Hon Hai Precision Industry Co., Ltd. Threaded core, injection molded apparatus method for making lens barrel
US20090304844A1 (en) * 2008-06-04 2009-12-10 Hon Hai Precision Industry Co., Ltd. Mold apparatus for forming screw threads
US20090324769A1 (en) * 2008-06-30 2009-12-31 Hon Hai Precision Industry Co., Ltd. Lens mold
US20100221379A1 (en) * 2007-05-17 2010-09-02 Takao Injection Mold Engineering Co., Ltd. Ejector apparatus
US20120088004A1 (en) * 2010-10-06 2012-04-12 Cheng Uei Precision Industry Co., Ltd. Mold with sliders
CN101398521B (zh) * 2007-09-28 2012-06-20 鸿富锦精密工业（深圳）有限公司 用于制作镜筒的牙板及用该牙板制作该镜筒的方法
US20120244238A1 (en) * 2011-03-24 2012-09-27 Cheng Uei Precision Industry Co., Ltd. Injection mold
US20120263821A1 (en) * 2011-04-18 2012-10-18 Wen-Peng Gong Injection Mold
TWI416189B (zh) * 2007-10-26 2013-11-21 Hon Hai Prec Ind Co Ltd 鏡筒、製作該鏡筒之牙板及用該牙板製作該鏡筒之方法
CN109070421A (zh) * 2016-04-28 2018-12-21 恩普乐斯股份有限公司 滑动件的驱动机构
US10226886B2 (en) * 2015-01-27 2019-03-12 Samsung Electronics Co., Ltd. Slim injection molding apparatus
CN112848135A (zh) * 2021-03-10 2021-05-28 临海伟星新型建材有限公司 一种弯管自动旋转抽芯脱模模具
US11365543B2 (en) 2017-04-24 2022-06-21 Rigidcore Group Llc Sheet material, mold, and methods of making and using the sheet material and mold
CN115195054A (zh) * 2022-07-08 2022-10-18 富诚汽车零部件有限公司 一种二次抽芯模具结构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03266618A (ja) * 1990-03-16 1991-11-27 Bandai Co Ltd 成形装置
CN111168941A (zh) * 2020-01-08 2020-05-19 浙江台州美多模具有限公司 注塑模具的四滑块抽芯机构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469284A (en) * 1967-01-11 1969-09-30 Robert V Ross Chain-making apparatus
US3737271A (en) * 1971-10-18 1973-06-05 Western Electric Co Molding apparatus having a tunnel gated movable mold member

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469284A (en) * 1967-01-11 1969-09-30 Robert V Ross Chain-making apparatus
US3737271A (en) * 1971-10-18 1973-06-05 Western Electric Co Molding apparatus having a tunnel gated movable mold member

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063862A (en) * 1975-06-23 1977-12-20 Arne Johansson Forming apparatus for synthetic-material tubes
US4082245A (en) * 1976-11-26 1978-04-04 Adelino Claudio Santos Ejector retraction mechanism
US4515342A (en) * 1984-04-06 1985-05-07 Borislav Boskovic Slide retainer
US4717113A (en) * 1985-06-18 1988-01-05 Eee Co., Inc. Segmented injection mold system
US4765585A (en) * 1987-02-27 1988-08-23 Superior Die Set Corporation Slide retainer for injection molds
US4961702A (en) * 1989-02-21 1990-10-09 Fairchild Industries, Inc. Retainer for injection molds
US4998875A (en) * 1990-02-28 1991-03-12 D & L Incorporated Mold with slide retainer
ES2046938A2 (es) * 1991-09-16 1994-02-01 Navarra Pruna Alberto Mejoras introducidas en los medios de fijacion de las guias inclinadas al cuerpo del molde, en moldes de inyeccion.
US5312243A (en) * 1992-04-01 1994-05-17 Mertz James E Slide retainer for an injection mold
US5407344A (en) * 1993-07-12 1995-04-18 Lake Center Industries, Inc. Single direction cam for insert molding machine
US5536161A (en) * 1993-11-05 1996-07-16 North America Packaging Corporation Double lock pail mold
WO2000041869A1 (en) * 1999-01-11 2000-07-20 D-M-E Company Mold core positioning device
WO2001032393A1 (en) * 1999-11-04 2001-05-10 D-M-E Company Slide retainer for an injection mold
US6443723B1 (en) * 1999-11-04 2002-09-03 D-M-E Company Slide retainer for an injection mold
US6450797B1 (en) 2001-03-01 2002-09-17 Stackteck Systems Limited Compact slide actuation mold
US20050098295A1 (en) * 2002-09-26 2005-05-12 Dubay Richard L. Universal slide assembly for molding and casting systems
US20060034973A1 (en) * 2002-11-05 2006-02-16 Hoogland Hendricus A Apparatus and method for manufacturing holders, in particular crates
US7140868B1 (en) 2003-10-27 2006-11-28 Hs Die & Engineering, Inc. Universal lifter foot assembly for removal of core block from mold
US20050208172A1 (en) * 2004-03-17 2005-09-22 Joseph Buttigieg Mold assembly
US7104774B2 (en) 2004-03-17 2006-09-12 D-M-E Company Mold assembly
US7431581B2 (en) 2004-07-16 2008-10-07 Cerniglia Anthony J Retaining device
US20080085337A1 (en) * 2004-07-16 2008-04-10 Cerniglia Anthony J Retaining device
US20070243286A1 (en) * 2006-04-18 2007-10-18 Cheng Uei Precision Industry Co., Ltd. Angular ejector mechanism and injection mold with the same
US7435079B2 (en) * 2006-04-18 2008-10-14 Cheng Uei Precision Industry Co., Ltd. Angular ejector mechanism and injection mold with the same
US20070281051A1 (en) * 2006-05-31 2007-12-06 Cerniglia Anthony J Angle pin roller guide
US20080175946A1 (en) * 2007-01-22 2008-07-24 Samsung Electronics Co., Ltd. Injection molding apparatus
US7670134B2 (en) * 2007-01-22 2010-03-02 Samsung Electronics Co., Ltd. Injection molding apparatus
US8029267B2 (en) * 2007-05-17 2011-10-04 Takao Injection Mold Engineering Co., Ltd. Ejector apparatus
US20100221379A1 (en) * 2007-05-17 2010-09-02 Takao Injection Mold Engineering Co., Ltd. Ejector apparatus
CN101398521B (zh) * 2007-09-28 2012-06-20 鸿富锦精密工业（深圳）有限公司 用于制作镜筒的牙板及用该牙板制作该镜筒的方法
US20090104303A1 (en) * 2007-10-22 2009-04-23 Hon Hai Precision Industry Co., Ltd. Threaded core, injection molded apparatus method for making lens barrel
US7846370B2 (en) * 2007-10-22 2010-12-07 Hon Hai Precision Industry Co., Ltd. Threaded core, injection molded apparatus method for making lens barrel
TWI416189B (zh) * 2007-10-26 2013-11-21 Hon Hai Prec Ind Co Ltd 鏡筒、製作該鏡筒之牙板及用該牙板製作該鏡筒之方法
US7481648B1 (en) * 2007-11-16 2009-01-27 Cheng Uei Precision Industry Co., Ltd. Side mold working mechanism
US7845926B2 (en) * 2008-06-04 2010-12-07 Hon Hai Precision Industry Co., Ltd. Mold apparatus for forming screw threads
US20090304844A1 (en) * 2008-06-04 2009-12-10 Hon Hai Precision Industry Co., Ltd. Mold apparatus for forming screw threads
CN101596571B (zh) * 2008-06-04 2011-11-30 鸿富锦精密工业（深圳）有限公司 螺纹成型模板结构
US20090324769A1 (en) * 2008-06-30 2009-12-31 Hon Hai Precision Industry Co., Ltd. Lens mold
US7985064B2 (en) * 2008-06-30 2011-07-26 Hon Hai Precision Industry Co., Ltd. Lens mold with slides
US8342838B2 (en) * 2010-10-06 2013-01-01 Cheng Uei Precision Industry Co., Ltd. Mold with sliders
US20120088004A1 (en) * 2010-10-06 2012-04-12 Cheng Uei Precision Industry Co., Ltd. Mold with sliders
US20120244238A1 (en) * 2011-03-24 2012-09-27 Cheng Uei Precision Industry Co., Ltd. Injection mold
US8475156B2 (en) * 2011-03-24 2013-07-02 Cheng Uei Precision Industry Co., Ltd. Injection mold
US20120263821A1 (en) * 2011-04-18 2012-10-18 Wen-Peng Gong Injection Mold
US8529244B2 (en) * 2011-04-18 2013-09-10 Cheng Uei Precision Industry Co., Ltd. Injection mold
US10226886B2 (en) * 2015-01-27 2019-03-12 Samsung Electronics Co., Ltd. Slim injection molding apparatus
CN109070421A (zh) * 2016-04-28 2018-12-21 恩普乐斯股份有限公司 滑动件的驱动机构
CN109070421B (zh) * 2016-04-28 2020-07-28 恩普乐斯股份有限公司 滑动件的驱动机构
US11365543B2 (en) 2017-04-24 2022-06-21 Rigidcore Group Llc Sheet material, mold, and methods of making and using the sheet material and mold
CN112848135A (zh) * 2021-03-10 2021-05-28 临海伟星新型建材有限公司 一种弯管自动旋转抽芯脱模模具
CN112848135B (zh) * 2021-03-10 2023-01-17 临海伟星新型建材有限公司 一种弯管自动旋转抽芯脱模模具
CN115195054A (zh) * 2022-07-08 2022-10-18 富诚汽车零部件有限公司 一种二次抽芯模具结构

Also Published As

Publication number Publication date
CA1010619A (en) 1977-05-24
DE2361238A1 (de) 1974-07-18
IT1006746B (it) 1976-10-20
FR2213145B1 (de) 1978-06-30
FR2213145A1 (de) 1974-08-02
GB1408659A (en) 1975-10-01
JPS4999753A (de) 1974-09-20
BE809362A (fr) 1974-05-02
JPS533774B2 (de) 1978-02-09
DE2361238C2 (de) 1983-04-28

Similar Documents

Publication Publication Date Title
US3811645A (en) Slide retainer and positioner
US4832307A (en) Injection mold
US3060509A (en) Forming apparatus
US4243362A (en) Composite molding apparatus for articles from two materials having a rotary mold block which includes pins for providing core areas
US5204127A (en) Compression molding apparatus
US3433292A (en) Locking mechanism for diecasting
US4765585A (en) Slide retainer for injection molds
SU786867A3 (ru) Устройство дл запирани формы лить под давлением
US5407344A (en) Single direction cam for insert molding machine
US2477368A (en) Injection molding apparatus
MXPA04009431A (es) Dispositivo para la fundicion inyectada de cuerpos moldeados hechos de plastico.
PT2070675E (pt) Molde equipado com um dispositivo de fecho
US3353221A (en) Locking device for injection molding apparatus
US3516302A (en) Ejector pin retraction mechanism for molding operation
JPH0433617B2 (de)
US2335807A (en) Mold locking mechanism
US2649621A (en) Molding machine
JP3944984B2 (ja) 樹脂成形体製造用金型
KR20100006999U (ko) 슬라이드 블록를 이용한 성형품 내/외측 언더컷 처리 구조
CN219968728U (zh) 一种机械式分级转向内抽芯机构以及注塑模具
SU761134A1 (ru) Пресс-форма для литья под давлением 1
US6220848B1 (en) Injection moulding die locking and opening device
RU2010667C1 (ru) Пресс-форма для литья под давлением
CN210817471U (zh) 一种模具
SU1733188A1 (ru) Пресс-форма дл лить под давлением

Legal Events

Date Code Title Description
AS Assignment

Owner name: UNITED NATIONAL BANK & TRUST CO., POST OFFICE BOX

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:FEIST MANUFACTURING CORPORATION;REEL/FRAME:004495/0692

Effective date: 19851230

STCF Information on status: patent grant

Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES)

AS Assignment

Owner name: FEIST MANUFACTURING CORPORATION, OHIO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:UNITED NATIONAL BANK & TRUST COMPANY;REEL/FRAME:006385/0324

Effective date: 19920429