WO2001012412A2 - Moule de corps de carte a puce comportant une piece de rattrapage d'usure et corps de carte a puce obtenu par le moule - Google Patents
Moule de corps de carte a puce comportant une piece de rattrapage d'usure et corps de carte a puce obtenu par le mouleInfo
- Publication number
- WO2001012412A2 WO2001012412A2 PCT/FR2000/002261 FR0002261W WO0112412A2 WO 2001012412 A2 WO2001012412 A2 WO 2001012412A2 FR 0002261 W FR0002261 W FR 0002261W WO 0112412 A2 WO0112412 A2 WO 0112412A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- molding
- mold according
- injection
- smart card
- wear take
- 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.)
- Ceased
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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
- B29C45/2803—Closure devices therefor comprising a member with an opening or the injection nozzle movable into or out of alignment with the sprue channel or mould gate
-
- 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
- B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
-
- 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
- B29L2017/00—Carriers for sound or information
- B29L2017/006—Memory cards, chip cards
Definitions
- the present invention relates to the field of injection molding. It particularly relates to the molds used in the injection molding of card body of electronic devices comprising an integrated circuit chip. These devices can be of the contact or contactless type via a communication interface with contact pads or antenna.
- FIG. 1 These molds are made up, FIG. 1 described in detail below, of a molding space, one wall of which is constituted by a part for supplying molding material in which a supply orifice is formed. After filling the molding space, the injection core connected to the injected body is cut simply by relative movement of the molding space relative to the feed piece.
- the invention proposes to remedy the above drawback by providing a wear part attached to the mold. This part alone would suffer the wear described above. So, as part of the mold repair, this part only would have to be redone in place of the lower block or would be replaced.
- the subject of the invention is a plastic body injection mold, comprising a molding space defined at least by two opposite plane walls, and a transverse wall provided with a material injection orifice. molding emerging between said two planar walls, said transverse wall having a relative movement with respect to at least one of the planar walls, characterized in that it comprises a wear take-up part, a surface portion of which forms a portion of molding surface opening into one of said flat walls in the vicinity of the injection orifice.
- the molding space corresponds to that of a smart card body.
- - Said molding surface portion is adjacent to the transverse wall.
- said molding surface portion is a rectangular surface with a width of less than 0.5 mm.
- - Said part has a generally parallelepiped shape and has a beveled upper end whose edge constitutes said portion of the molding surface.
- the mold comprises a receiving housing of a shape complementary to said wear take-up part.
- said wear take-up part comprises lateral ents shoulders constituting stops in the mold.
- - Said molding surface portion has a surface state of hardness greater than that of the walls of the molding space. said portion of the molding surface is ceramic.
- the invention also relates to a body of an electronic chip device, such as a smart card, obtained by the mold according to the invention as well as an electronic device comprising said body.
- FIG. 1 shows a sectional view of the molding assembly of the prior art
- - Fig. 2 shows a sectional view of the mold equipped with a wear take-up part according to the invention
- - Fig. 3 shows a sectional view of the mold fitted with a preferred variant of the wear take-up part according to the invention
- FIG. 4 shows a perspective view of the wear take-up part according to the preferred variant
- FIG. 5 shows a perspective view of another wear take-up part according to the preferred variant.
- the molding assembly of the prior art comprises two parts, a lower block 1 and an upper block 2 which, in a state in which they are brought together, cooperate for the injection of a body into space molding 3 and in a state where they are separated, allow the extraction of the body.
- the lower block 1 has an open molding space machined on its surface and of dimensions corresponding to those of the body of the device, said molding space having a flat bottom 4 and side walls 5, 6.
- the card body has 85 mm in length, 54 mm in width and 0.76 mm in thickness.
- the upper block 2 is planar and simply covers the lower block and forms the upper surface 7 of the molding space opposite the bottom above.
- a punch 8 which can be fixed or mobile to define a cavity in the card body and in which will be later reported an electronic micromodule containing the integrated circuit.
- the side wall 6 of the molding space is constituted by a surface portion of a supply part 9.
- a supply channel 10 terminating in a supply nozzle 11 (or orifice injection) which opens into the molding space through the wall 6.
- the feed piece has freedom of transverse movement relative to the molding space.
- the material injected is generally chosen from the usual plastics in the smart card industry such as ABS (Acrylonitrile Butadiene Styrene), PVC (Polyvinyl chloride), PC (poly carbonate), PET (Polyethylene terephthalate) ), etc.
- ABS Acrylonitrile Butadiene Styrene
- PVC Polyvinyl chloride
- PC poly carbonate
- PET Polyethylene terephthalate
- the injection core 11A connected to the injected body is cut by shearing simply by relative displacement of the molding space relative to the part d ' food. If we consider a displacement of the part 9 towards the direction Y, the molding space being fixed, it ultimately produces preferential wear located on the bottom 4 in a zone 12 near the injection nozzle.
- the repair consists in machining the walls 5 and the bottom 4 of the block 1 as well as the interface with the block 2.
- the mold of the invention comprises a wear take-up part 13, which comprises a surface portion 14 opening into the molding space in the vicinity of the injection orifice.
- the wear take-up part has a rectangular section, and the surface portion 14 defines a rectangle just below the orifice of the injection nozzle.
- the wearing part is centered under the orifice of the injection nozzle and in the example has a width of 1 cm, and a width of less than 2 mm.
- the wear zone may be located elsewhere, in particular on the other block 2 of the mold.
- the wear take-up part has a beveled end 15 in its upper part close to the molding space.
- the edge (16) of the bevel constitutes said portion of the molding surface.
- the wear area to be covered by the part 13 can be extremely fine, for example less than 0.5 mm, or even less than or equal to 0.2 mm. It is then easier to handle the wear take-up part, to machine it and fix it if it has a wider base.
- the wear take-up part may further comprise (FIG. 4) lateral shoulders 17 to block it in the mold against the displacement forces generated by the friction of the injection block 10.
- it can include (fig. 5) anti-shearing fixing means (drilling 18)
- the wearing part can advantageously be made of a much harder material than that of the mold, in particular high carbon steel, ceramic material.
- the block 1 has a complementary shape for receiving and fixing the wear take-up piece.
- the wear take-up part in the event of pronounced wear of the bottom 4 under the injection orifice 11, the wear take-up part can be replaced, or rectified at lower cost.
- the invention makes it possible to meet rigorous and meticulous specifications for obtaining plastic bodies with excellent surface condition.
- the mold of the invention is advantageously suitable for obtaining bodies of standardized devices such as electronic chip cards.
- the invention makes it possible to respond to a problem in the field of the smart card, it may be suitable for molding other bodies, and if necessary with other molding materials, using the principle of cutting the carrot. by a shear involving a wall of the molding space. If necessary, the two opposite flat walls can be replaced by walls of all possible shapes.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Credit Cards Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU68511/00A AU6851100A (en) | 1999-08-16 | 2000-08-07 | Smart card body mould comprising a wear take-up part and smart card obtained from the mould |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9910620A FR2797610B1 (fr) | 1999-08-16 | 1999-08-16 | Moule de corps de carte a puce comportant une piece de rattrapage d'usure et corps de carte a puce obtenu par le moule |
| FR99/10620 | 1999-08-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2001012412A2 true WO2001012412A2 (fr) | 2001-02-22 |
| WO2001012412A3 WO2001012412A3 (fr) | 2002-09-26 |
Family
ID=9549235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2000/002261 Ceased WO2001012412A2 (fr) | 1999-08-16 | 2000-08-07 | Moule de corps de carte a puce comportant une piece de rattrapage d'usure et corps de carte a puce obtenu par le moule |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU6851100A (fr) |
| FR (1) | FR2797610B1 (fr) |
| WO (1) | WO2001012412A2 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7364048B2 (en) | 2003-07-01 | 2008-04-29 | Dart Industries Inc. | Cheese server |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59187812A (ja) * | 1983-04-09 | 1984-10-25 | Toshiba Chem Corp | 導電性プラスチツク成形品の製造方法 |
| JPS6135923A (ja) * | 1984-07-30 | 1986-02-20 | Dainichi Kanagata Seisakusho:Kk | 樹脂成形装置 |
| DE19615029C2 (de) * | 1996-02-26 | 1998-07-02 | Richard Herbst | Werkzeug zum Spritzgießen von Smart Cards |
| EP0791448A3 (fr) * | 1996-02-26 | 1999-05-12 | HERBST, Richard | Procédé et dispositif pour mouler par injection des articles en matière plastique |
-
1999
- 1999-08-16 FR FR9910620A patent/FR2797610B1/fr not_active Expired - Lifetime
-
2000
- 2000-08-07 WO PCT/FR2000/002261 patent/WO2001012412A2/fr not_active Ceased
- 2000-08-07 AU AU68511/00A patent/AU6851100A/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7364048B2 (en) | 2003-07-01 | 2008-04-29 | Dart Industries Inc. | Cheese server |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001012412A3 (fr) | 2002-09-26 |
| AU6851100A (en) | 2001-03-13 |
| FR2797610A1 (fr) | 2001-02-23 |
| FR2797610B1 (fr) | 2002-08-02 |
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