WO2012098418A1 - Appareil de moulage par injection - Google Patents

Appareil de moulage par injection Download PDF

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Publication number
WO2012098418A1
WO2012098418A1 PCT/IB2011/000082 IB2011000082W WO2012098418A1 WO 2012098418 A1 WO2012098418 A1 WO 2012098418A1 IB 2011000082 W IB2011000082 W IB 2011000082W WO 2012098418 A1 WO2012098418 A1 WO 2012098418A1
Authority
WO
WIPO (PCT)
Prior art keywords
movable member
injection molding
molding apparatus
workpiece
mold
Prior art date
Application number
PCT/IB2011/000082
Other languages
English (en)
Inventor
Roberto ATHANAZIO
Meira Joao Luiz DE CARVALHO
RIBERIO Eduardo GUBBIOTTI
Edgard Ferraz
Original Assignee
Melling Do Brasil Componentes Automotivos Ltda.
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 Melling Do Brasil Componentes Automotivos Ltda. filed Critical Melling Do Brasil Componentes Automotivos Ltda.
Priority to PCT/IB2011/000082 priority Critical patent/WO2012098418A1/fr
Publication of WO2012098418A1 publication Critical patent/WO2012098418A1/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
    • B29C45/2681—Moulds with rotatable 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1635—Making multilayered or multicoloured articles using displaceable mould parts, e.g. retractable partition between adjacent 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1459—Coating annular articles
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
    • B29L2031/265—Packings, Gaskets

Definitions

  • the invention relates to the field of injection molding, and more particularly, to an injection molding apparatus capable of fabricating a part from two materials.
  • Sequential shot injection molding processes are known in which differing mold portions are used for each of the successive shots. Injection molding processes are also known in which two or more mold portions are moved with respect to one another between successive molding shots.
  • the previously-known apparatuses are typically complex and expensive.
  • An exemplary injection molding apparatus that is taught herein includes two or more mold portions that at least partially define a mold cavity, a movable member, and a mounting member.
  • the movable member is movable with respect to the two or more mold portions between a first position and a second position to at least partially define the mold cavity.
  • the mounting member connects the movable member to the two or more mold portions such that rotation of the movable member about an axis moves the movable member along the axis between the first position and the second position.
  • FIG. 1 is a sectional view showing a workpiece
  • FIG. 2 is a perspective view showing an injection molding apparatus according to the invention.
  • FIG. 3 is a side, cross-section view of the injection molding apparatus showing a movable sleeve in a first position
  • FIG. 4 is a side, cross-section view showing the movable sleeve in a second position
  • FIG. 5 is a sectional view showing a core assembly of the injection molding apparatus, wherein the movable sleeve is in the first position;
  • FIG. 6 is a top, cross-section view of the injection molding apparatus showing a gear rack of an actuator assembly in engagement with the movable sleeve;
  • FIG. 7 is a side, cross-section view showing an injection molding apparatus according to an alternative embodiment.
  • FIG. 1 shows a workpiece 10 in the form of a pump housing that can be fabricated using the inventions taught herein, including an injection molding apparatus 50 according to the invention and related injection molding methods.
  • the workpiece 10 includes a shaft 12, a body portion 14, and a bearing assembly 16 that mounts the shaft 12 for rotation with respect to the body portion 14.
  • the workpiece 10 includes, by way of example, a radial flange 18, an outer annular flange 20, an intermediate annular flange 22, and an inner annular flange 24.
  • the outer annular flange 20, the intermediate annular flange 22, and the inner annular flange 24 are all connected to the radial flange 18.
  • the outer annular flange 20 defines an outer periphery for the workpiece 10.
  • the inner annular flange 24 defines a central passage 26 through the workpiece 10.
  • the bearing assembly 16 is disposed within the central passage 26, and the shaft 12 extends through the central passage 26.
  • a channel 28 is defined between the outer annular flange 20 and the intermediate annular flange 22.
  • the channel 28 is defined in part by an inner surface 30 of the outer annular flange 20 and an outer surface 32 of the intermediate annular flange 22.
  • the channel 28 is further defined by a first base surface 34 that extends outward from the outer surface 32 of the intermediate annular flange 22, as well as by a second base surface 36 that extends outward from the first base surface 34 to the inner surface 30 of the outer annular flange 20.
  • the first base surface 34 and the second base surface 36 could extend at an angle with respect to one another.
  • the first base surface 34 may extend in a plane that is generally perpendicular to the axis of the shaft 12, while the second base surface 36 is tapered with respect to the first base surface 34.
  • the angle formed by the second base surface 36 with respect to the first base surface 34 may be arranged such that the channel 28 becomes deeper throughout the width of the second base surface 36 as it progresses closer to the inner surface 30 of the outer annular flange 20.
  • the workpiece 10 includes a gasket 38.
  • the gasket 38 is formed in the channel
  • the gasket 38 may be configured such that at least a portion of the gasket 38 substantially overlies the first base surface 34 of the channel 28 but is spaced apart from the first base surface 24 in a direction defined by the axis of the shaft 12.
  • the body portion 14 and the gasket 38 of the workpiece 10 are fabricated from different materials.
  • the body portion 14 of the workpiece 10 could be fabricated from plastic. It is specifically contemplated that the body portion 14 could be fabricated from polyamide materials, including polyphthalamide (PPA).
  • the gasket 38 could be fabricated from rubber, either natural or synthetic, or other suitable moldable gasket materials.
  • the workpiece 10 can be fabricated using the injection molding apparatus 50 according to the invention, as shown in FIGS. 2-4.
  • the injection molding apparatus 50 includes a plurality of portions that are connected together.
  • the injection molding apparatus 50 includes first through seventh mold portions 51-57 as well as a core assembly 58 that is disposed either entirely within or at least partially within a core cavity 59 defined by the combined structure of the first through seventh mold portions 51-57.
  • the first through seventh mold portions 51-57 could be substantially plate-like structures having geometric features that cooperate to accommodate the core assembly 58 and the other features of the injection molding apparatus 50, as will be described in detail herein.
  • An injection molding apparatus including first through seventh mold portions 51-
  • the injection molding apparatus include at least two mold portions, such as the first mold portion 51 and the second mold portion 52 that at least partially define a mold cavity 60.
  • the mold cavity is also at least partially defined by the core assembly 58, as will be explained in detail herein.
  • the first mold portion 51 and the second mold portion 52 may be movable with respect to one another to open and close the injection molding apparatus 50 at a parting line 62.
  • the workpiece 10 is removed from the injection molding apparatus 50 by opening the injection molding apparatus 50 at the parting line 62 and removing the workpiece 10 from the mold cavity 60.
  • the second through seventh mold portions 52-57 are formed separately for ease of fabrication and are fixed with respect to one another during normal operation of the injection molding apparatus 50.
  • the shaft 12 and the bearing assembly 16 may be placed into the mold cavity 60 prior to formation of the body portion 14 of the workpiece 10. This may be accomplished, for example, by first assembling the shaft 12 and the bearing assembly 16 with respect to one another and then placing an end of the shaft 12 into a receptacle 64 that is formed at one end of the mold cavity 60 within the first mold portion 51.
  • the workpiece 10 is formed in a two stage process. First, plastic is injected into the mold cavity 60 along a first injection path 64 to define the body portion 14 of the workpiece 10. Due to the presence of the shaft 12 and the bearing assembly 16 within the mold cavity 60, the body portion 14 is molded onto the bearing assembly 16 and thus connected to the shaft 12 and the bearing assembly 16. During the first step of the injection molding process, a movable member 68 of the core assembly 58 is disposed in a first position, thereby defining a first configuration for the mold cavity 60.
  • the gasket 38 of the workpiece 10 is formed in the second step of the process.
  • the material for the gasket 38 such as rubber, is injected into the mold cavity 60 along a second injection path 66.
  • the plastic material from which the body portion 14 is fabricated is prevented from entering into the area of the mold cavity 60 where the gasket 38 will subsequently be formed by presence of the movable member 68 of the core assembly 58.
  • the movable member 68 of the core assembly 70 Prior to the second injection molding step, the movable member 68 of the core assembly 70 is moved to a second position, thereby defining a second configuration for the mold cavity 60 to allow formation of the gasket 38.
  • the core assembly 58 is shown without the first through seventh mold portions.
  • the workpiece 10 is shown in dashed lines to indicate its positional relationship with respect to the core assembly 58.
  • the core assembly 58 includes a center section 80, a sleeve 82, the movable member 68, and a mounting member 84.
  • the core assembly 58 also includes an injection tube 86 that extends upward from the center section 80.
  • the center section 80 is disposed roughly at the center of the injection molding apparatus 50 and may be centered along an axis defined by the shaft 12 of the workpiece 10.
  • a cavity 82 may be defined by the center section 80 for receiving the shaft 12 of the workpiece 10.
  • the center section 80 of the core assembly 58 at least partially defines the mold cavity 60.
  • a lower end 88 of the center section 80 is contoured to define at least part of each of the intermediate annular flange 22, the inner annular flange 24, and the radial flange 18 of the body portion 14 of the workpiece 10.
  • the first injection path 64 may be defined in part by the center section 80.
  • the first injection path 64 could extend through the center section 80 through the injection tube 85 to the mold cavity 60.
  • the first injection path 64 could terminate at the lower end 88 of the center section 80 in the area of the inner annular flange 24 and/or the radial flange 18 of the body portion 14 of the workpiece 10 in order to supply the plastic material that will form the body portion 14 of the workpiece 10.
  • the first injection path 64 could be defined by a single passage or multiple passages. In the event that multiple passages are used to define the first injection path 64, they could be arrayed around the receptacle 86 in which the shaft 12 of the workpiece 10 is received.
  • first injection path 64 could be formed elsewhere, for example, the first injection path 64 could be defined by one or more of the first through seventh mold portions 51-57. For instance, the first injection path 64 could be formed entirely through the first mold portion 51.
  • a shoulder 90 may be formed on the center section 80 adjacent to an upper end 92 thereof. The shoulder 90 is engageable with the sleeve 82, and the upper end 92 is engageable with an adjacent one of the first through seventh mold portions 51-57, such as the fifth mold portion 55 of the injection molding apparatus 50.
  • the sleeve 82 serves to define at least a portion of the mold cavity 60.
  • a lower end 94 of the sleeve 82 could be contoured to define the mold cavity 60 in the area of the outer surface 32 of the intermediate annular flange 22, as well as the first base surface 34 of the channel 28 of the body portion 14 of the workpiece 10.
  • the sleeve 82 is in contact with the center section 80, including the shoulder 90 thereof.
  • a shoulder 98 is formed on the exterior of the sleeve 82 for engagement with a complementary portion of the fourth mold portion 54.
  • the sleeve 82 is also restrained against axial movement with the remaining mold portions on the same side of the parting line 62, namely the second through seventh mold portions 52-57, by virtue of their fixed relationship with respect to one another during the normal operation of the injection molding apparatus 50.
  • center section 80 and the sleeve 82 are restrained against rotational movement with respect to one another and with respect to the first through seventh mold portions 51-57. This may be accomplished by any suitable means, such as geometric features or mechanical fasteners, such as screws.
  • the movable member 68 has a lower end 100 that is contoured to define portions of the mold cavity 60 that form the second base surface 36 of the channel 28 and the inner surface 30 of the outer annular flange 20 during the first step of the injection molding process.
  • the movable member 68 also at least partially defines the gasket 38 during the second step of the injection molding process, as will be explained further herein.
  • a plurality of teeth 102 are provided on the movable member 68.
  • the teeth 102 encircle the outer periphery 104 of the movable member 68.
  • the teeth 102 may be oriented such that their crests and valleys extend along axes that are substantially parallel to the axis of the shaft 12 when it is positioned with respect to the core assembly 58.
  • the teeth 102 are provided to allow rotational movement of the movable member 68 with respect to the remaining portions of the injection molding apparatus 50, including the first through seventh mold portions 51 -57, the center section 80, the sleeve 82, the mounting member 84, and the injection tube 85, as will be explained in detail herein.
  • the movable member 68 includes a threaded portion 106 that is formed on the outer periphery 104 of the movable member 68 near an upper end 108 thereof.
  • the threaded portion 106 is provided for mating engagement with the mounting member 84.
  • the threaded portion 106 may be configured such that it provides multiple thread openings.
  • the threaded portion 106 may be provided with a single discrete thread or multiple discrete threads. If multiple discrete threads are provided on the threaded portion 106, multiple thread openings will be defined. By way of example, five discrete threads could be provided on the threaded portion 106, thereby providing five thread openings.
  • the mounting member 84 is substantially annular and is positioned outward of the movable member 68.
  • a threaded portion 1 10 is provided on an inner periphery 1 12 of the mounting member 84.
  • the threaded portion 110 of the mounting member 84 is configured to threadedly engage the threaded portion 106 of the movable member 68.
  • the number of threads and thread openings defined by the threaded portion 1 10 is equal to that provided by the threaded portion 106 of the movable member 68.
  • the threads of the threaded portion 106 of the movable member 68 and the threaded portion 1 10 of the mounting member 84 are equal in pitch.
  • a shoulder 1 14 is provided on an outer periphery 1 16 of the mounting member
  • the shoulder 1 14 allows the mounting member 104 to be restrained axially with respect to one or more adjacent mold portions.
  • the outer periphery 1 16 of the mounting member 84 could be in contact with the third mold portion 53 and an upper end 1 18 of the mounting member 84 could be in contact with the fourth mold portion 54 such that the shoulder 1 14 is captured between the third mold portion 53 and the fourth mold portion 54, thereby preventing axial movement of the mounting member 84 with respect to the third and fourth mold portions 53, 54.
  • the mounting member 84 is also connected to one or more of the first through seventh mold portions 51-57, such as the third mold portion 53, such that it is restrained against rotation with respect to the first through seventh mold portions 51-57. This can be accomplished by providing appropriate geometric features or fasteners, such as screws.
  • the injection molding apparatus 50 includes an actuator assembly 120 that is configured to rotate the movable member 68. By rotating the movable member 68, the actuator assembly 120 causes axial movement of the movable member 68. Thus, the actuator assembly 120 is operable to move the movable member 68 between the first position and the second position thereof.
  • the actuator assembly 120 shown in the illustrated embodiment includes a plurality of teeth 122.
  • the plurality of teeth 122 of the actuator assembly 120 are engageable with the plurality of teeth 102 of the movable member 68.
  • the actuator assembly 120 rotates the movable member 68.
  • the plurality of teeth 122 of the actuator assembly 120 may be provided on a gear rack 124.
  • the teeth 122 are arrayed linearly along one side of the gear rack 124.
  • the gear rack 124 is an elongate, generally rectangular member that is disposed within a linear cavity 126 that is formed through the second mold portion 52.
  • the gear rack 124 is capable of moving linearly along a rack axis 128 within the linear cavity 126.
  • the plurality of teeth 122 are described herein as being disposed on a gear rack 124, it should be understood that other configurations could be provided.
  • the plurality of teeth 122 could be provided on a rotating gear.
  • the plurality of teeth 122 could be provided on a belt that is engageable with the teeth 102 of the movable member 68.
  • the actuator assembly 120 includes an actuator 130 for moving the plurality of teeth 122 of the actuator assembly 120.
  • the actuator 130 is a linear actuator that is capable of moving the gear rack 124 linearly between first and second positions along the rack axis 128 the first and second positions of the gear rack 124 correspond to the first and second positions of the movable member 68. From the foregoing, it will be understood that as the actuator assembly 120 moves the gear rack 124 between its first and second positions, the movable member 68 rotates.
  • a threaded portion 140 may be formed on the movable member 68 at the lower end 100 thereof and on the outer periphery 104 thereof.
  • the threaded portion 140 is exposed to the mold cavity 60 when the movable member 68 is in its first position.
  • the threaded portion 140 includes threads similar in number and pitch to the threaded portion 106 of the movable member 68.
  • the threaded area 142 provides one ore more discrete helical flanges, in the form of individual discrete threads.
  • the threaded area 142 is exposed to the area in which the rubber material will be injected along the second injection molding path 66. That is to say that the gasket 38 of the workpiece 10 is formed in a portion of the mold cavity 60 that is vacated by the movable member 68 when it moves from the first position to the second position.
  • the gasket 38 is formed on the threaded area 142, thereby improving adhesion of the gasket 38 with respect to the base portion 14 of the workpiece 10. It should be understood, however, that provision of the threaded area 142 is optional.
  • the shaft 12 and the bearing assembly 16 are positioned within the mold cavity 60 such that the shaft is received within the receptacle 64 of the first mold portion 51 as well as the receptacle 86 of the center section 80 of the core assembly 58.
  • the first mold portion 151 is then moved to a closed position with respect to the second through seventh mold portions 1 2-157.
  • a first material namely plastic, is injected into the mold cavity 60 by way of the injection tube 85 and the first injection path 64.
  • the movable member 68 is in its first position. Injection of the plastic material defines the base portion 14 of the workpiece 10.
  • the newly formed body portion 14 is allowed to cool for a predetermined time.
  • the movable member 68 is moved axially and rotationally to its second position, thereby defining an area of the mold cavity 60 in which the gasket 38 of the workpiece 10 will be formed.
  • a second material namely rubber, is injected into the mold cavity 60 while the movable member is in the second position, subsequent to injection of the plastic material. This defines a second portion of the workpiece 10, namely the gasket 38.

Landscapes

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

Abstract

L'invention concerne un appareil de moulage par injection comprenant deux parties de moule ou plus qui définissent au moins partiellement une cavité de moule. Un élément mobile se déplace par rapport aux parties de moule entre une première position et une seconde position afin de définir au moins partiellement la cavité de moule. Un élément de montage relie l'élément mobile aux parties de moule, de telle sorte que sa rotation autour d'un axe le déplace le long de l'axe entre la première et la seconde position.
PCT/IB2011/000082 2011-01-20 2011-01-20 Appareil de moulage par injection WO2012098418A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2011/000082 WO2012098418A1 (fr) 2011-01-20 2011-01-20 Appareil de moulage par injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2011/000082 WO2012098418A1 (fr) 2011-01-20 2011-01-20 Appareil de moulage par injection

Publications (1)

Publication Number Publication Date
WO2012098418A1 true WO2012098418A1 (fr) 2012-07-26

Family

ID=44625639

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/000082 WO2012098418A1 (fr) 2011-01-20 2011-01-20 Appareil de moulage par injection

Country Status (1)

Country Link
WO (1) WO2012098418A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT514099A1 (de) * 2013-03-27 2014-10-15 Engel Austria Gmbh Schließeinheit

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718419A (en) * 1971-04-21 1973-02-27 Monsanto Co Apparatus for removing a hollow article having internal enlargements from an injection mold assembly
JPH02227228A (ja) * 1989-02-28 1990-09-10 Nissei Plastics Ind Co シール材付キャップの成形方法と、それに用いる成形装置
JPH06114886A (ja) * 1992-10-02 1994-04-26 Alps Electric Co Ltd ねじ付き部品の成形方法およびその成形装置
DE10022288A1 (de) * 2000-05-09 2001-11-29 Innova Engineering Gmbh Vorrichtung zum Herstellen eines zum temperierenden Werkstücks
EP1338399A1 (fr) * 2002-02-20 2003-08-27 Demag Ergotech GmbH Objet moulé par injection de plusieurs matières, et dispositif et procédé pour sa fabrication
EP2027983A1 (fr) * 2007-08-21 2009-02-25 Daviplast - Servicos de Consultoria, Sociedade Unipessoal LDA. Procédé et appareil pour la moulure par injection de deux matériaux plastiques

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718419A (en) * 1971-04-21 1973-02-27 Monsanto Co Apparatus for removing a hollow article having internal enlargements from an injection mold assembly
JPH02227228A (ja) * 1989-02-28 1990-09-10 Nissei Plastics Ind Co シール材付キャップの成形方法と、それに用いる成形装置
JPH06114886A (ja) * 1992-10-02 1994-04-26 Alps Electric Co Ltd ねじ付き部品の成形方法およびその成形装置
DE10022288A1 (de) * 2000-05-09 2001-11-29 Innova Engineering Gmbh Vorrichtung zum Herstellen eines zum temperierenden Werkstücks
EP1338399A1 (fr) * 2002-02-20 2003-08-27 Demag Ergotech GmbH Objet moulé par injection de plusieurs matières, et dispositif et procédé pour sa fabrication
EP2027983A1 (fr) * 2007-08-21 2009-02-25 Daviplast - Servicos de Consultoria, Sociedade Unipessoal LDA. Procédé et appareil pour la moulure par injection de deux matériaux plastiques

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT514099A1 (de) * 2013-03-27 2014-10-15 Engel Austria Gmbh Schließeinheit
AT514099B1 (de) * 2013-03-27 2015-03-15 Engel Austria Gmbh Schließeinheit

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