WO2000048120A1 - Procede et installation pour le depilage automatique et a cadence elevee de cartes a circuits integres - Google Patents
Procede et installation pour le depilage automatique et a cadence elevee de cartes a circuits integres Download PDFInfo
- Publication number
- WO2000048120A1 WO2000048120A1 PCT/FR2000/000286 FR0000286W WO0048120A1 WO 2000048120 A1 WO2000048120 A1 WO 2000048120A1 FR 0000286 W FR0000286 W FR 0000286W WO 0048120 A1 WO0048120 A1 WO 0048120A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- card
- unstacking
- needles
- pressurized air
- unstacked
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
- G06K13/02—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier having longitudinal dimension comparable with transverse dimension, e.g. punched card
- G06K13/08—Feeding or discharging cards
- G06K13/10—Feeding or discharging cards from magazine to conveying arrangement
- G06K13/107—Feeding or discharging cards from magazine to conveying arrangement using pneumatic means
Definitions
- the present invention relates to a method and an installation for unstacking rectangular flat objects, in particular cards.
- the invention relates more particularly to a method and installation for unstacking rectangular plastic cards, rigid or semi-rigid, which make it possible to take one by one and at a high rate cards previously stacked vertically on top of each other at least a battery.
- Such cards are for example the plastic material bodies of integrated circuit cards, also called smart cards, which are stacked at the end of their manufacturing stage by known methods such as laminating and cutting to the rectangular shape. desired.
- Plastic supports previously stacked in large quantities are difficult to separate from each other, in particular due to the existing contact forces between the different cards as well as due to static electricity problems.
- each card In order to avoid scratching the cards, it has already been proposed to take each card to be unstacked by a suction cup system, generally comprising a large central suction cup and four small lateral suction cups, then to pass it vertically through a set of pairs of opposite needles which are oriented parallel to the width of the card, that is to say parallel to the edges of small size of the card.
- a suction cup system generally comprising a large central suction cup and four small lateral suction cups, then to pass it vertically through a set of pairs of opposite needles which are oriented parallel to the width of the card, that is to say parallel to the edges of small size of the card.
- the invention provides a method for unstacking rectangular flat objects, in particular cards, of rigid or semi-rigid material stacked vertically on top of each other in at least one stack, during which proceeds to the unitary gripping, in particular by aspiration, of a last card of the stack, then a tractive force is applied to this card in a generally vertical direction, characterized in that an air jet is sent laterally under pressure at the right of at least one lateral edge of the last card of the stack to be unstacked and of the card immediately adjacent
- a jet of pressurized air is sent laterally in line with at least one lateral edge of the last card of the stack to be unstacked and of the card immediately adjacent;
- the jet of pressurized air is sent prior to the passage of the card to be unstacked between the needles; - the jet of pressurized air is sent during the passage, with deformation, of the card to be unstacked between the needles;
- the jet of pressurized air is sent to the right of two parallel and opposite edges of the card to be unstacked and of the card immediately adjacent;
- the jet of pressurized air is sent to the right of at least one short edge of the card to be unstacked and of the card immediately adjacent;
- the card to be unstacked is passed vertically between at least one pair of parallel arranged horizontal needles respectively opposite two zones facing the grip face of the card adjacent to two parallel and opposite edges of the card by elastically deforming the latter to cause temporary bending of the card to be unstacked about an axis substantially horizontal bending parallel to the needles;
- the card to be unstacked is passed between two horizontal needles parallel to the axis of greatest length of the card to cause temporary bending of the card by elastic bending of the card around this axis;
- the invention also provides an installation for unstacking cards, and in particular for implementing the method according to the invention.
- the invention provides an installation for unstacking rectangular flat objects, in particular cards, of rigid or semi-rigid material stacked vertically on top of each other in at least one stack, of the type comprising means for gripping, in particular by aspiration, of a last card of the stack and of the separation means of the stacked cards, to guarantee the unstacking of the stacked cards, characterized in that said card separation means comprise air blowing means under pressure which are arranged to send laterally a jet of pressurized air in line with at least one lateral edge of the last card of the stack to be unstacked and of the card immediately adjacent
- the means for blowing pressurized air send a jet of pressurized air in line with two parallel edges and opposites of the card to be unstacked and the immediately adjacent card;
- the means for blowing pressurized air send a jet of pressurized air in line with at least one short edge of the card to be unstacked and the card immediately adjacent;
- control unit which controls the means for blowing pressurized air to trigger the sending of a jet of pressurized air prior to the passage of the card to be unstacked between the needles;
- - It comprises a control unit which controls the means for blowing pressurized air to trigger the sending of a jet of pressurized air during the passage, with deformation, of the card to be unstacked between the needles;
- - It comprises a unstacking head which is mounted vertically movable between a position for gripping the unstacking card and a position for removing the unstacked card and that i comprises at least one gripping member by suction, in particular a suction cup, of the unstacking card which is capable of cooperating with the gripping face opposite the unstacking card;
- the unstacking head comprises at least two suction gripping members which are aligned longitudinally along the axis of flexion of the card to be unstacked;
- control unit controls the means for blowing air under pressure as a function of the vertical position of the unstacking head;
- the installation comprises a control unit which controls each gripping member by suction as a function of the vertical position of the unstacking head, in particular in view of gradually releasing the card which has just been unstacked;
- the control unit comprises an arrangement of a window 88 of a tubular column 74, of a block 74 and of a pipe connection 84, said arrangement being capable of causing a gradual venting of the window 88 while the fitting 84 is still facing the latter, with a view to gradually releasing the card which has just been unstacked.
- Said separation means comprise at least one pair of parallel horizontal needles which are respectively arranged opposite two zones facing the gripping face of the card adjacent to two parallel and opposite edges of the card and which elastically deform the latter during its passage between the needles to cause temporary bending of the card around a substantially horizontal bending axis parallel to the needles;
- the needles are parallel to the longest axis of the card to be unstacked to cause temporary bending of the card by elastic bending of the card around this axis;
- It comprises at least one charger which receives the stack of cards to be unstacked and comprising at least two vertical guide walls for the edges of the long lengths of the cards, and each of the two needles is arranged along one of these guide walls;
- Figure 1 B is a sectional view along the vertical plane B-B of Figure 1 A;
- FIGS. 2A and 2B are views similar to those of Figures 1 A and 1 B on which the unstacking head is in the high position in contact with the last card to be unstacked to ensure its gripping;
- FIGS 3A and 3B are views similar to those of Figures 2A and 2B on which the unstacking head is being lowered to unstack the last card;
- Figures 4A and 4B are views similar to those of Figures 3A and 3B illustrating the unstacking head during its descent phase in order to deposit the unstacked card on a transfer device;
- FIG. 5 is an exploded perspective diagram illustrating two cards and the two bending needles arranged according to the invention
- - Figure 6 is a simplified view, in partial section along line 6-6 of Figure 7, which shows the detailed structure of the installation according to the invention and more particularly of one of its unstacking units;
- - Figure 7 is a side view along arrow F7 of Figure 6 with certain parts illustrated in section by vertical planes; and - Figure 8 is a partial sectional view along line 8-8 of Figure 7.
- each card C is in the form of a rectangular plate with rounded angles which is delimited by two parallel and opposite longitudinal edges of great length 10, by two parallel and opposite lateral edges 12 of shorter length , and by two large parallel and opposite faces lower 14 and upper 16.
- the cards to be unstacked are initially in the form of a stack of cards C which are superimposed vertically on each other and which are placed in a feeder 20 (FIG. 1 A) of a shape complementary to that of the cards and which includes in particular vertical walls, or wall elements, to hold the stack of cards and guide them vertically as the unstacking takes place.
- the charger 20 thus comprises at least two elements
- the cards are unstacked in a unitary manner from the last lower card of the stack of cards C loaded in the charger 20.
- the loader 20 which is open vertically downwards, has slopes along the internal faces of the walls 24 inclined 28 making it possible to center the last lower cards of the stack transversely.
- each slope 28 is arranged and fixed a needle 30.
- each needle can be rotating around its axis.
- the two needles 30 extend horizontally in the same plane and each is parallel to the longitudinal axis L (see FIG. 5) of the card C, that is to say that they are parallel to the edges 10 of great length of the card.
- the last card of the stack therefore rests by its lower face 14 on the needles 30, more precisely this card rests on the needles 30 by two longitudinal zones 32 facing each other. screws adjacent to the edges 10.
- the vertical walls 22 adjacent to the edges 12 comprise means for blowing air under pressure which are here represented schematically in the form of nozzles 34, each of which opens horizontally in line with the lateral edges 12 of the last two cards in the stack, that is to say substantially in the horizontal plane intermediate between the last two cards stacked, as can be seen in the figures.
- a gripping and unstacking head 36 capable of moving vertically in both directions along the axis V of the figures.
- the unstacking head 36 comprises an upper horizontal plate 38 in the form of a plate which carries on its upper face two suction cups 40, each of which is connected, in known manner, to a suction control circuit for taking the last by suction or suction cup menu bottom of the stack, the bottom face 14 of which constitutes here the face gripped by the suction cups 40.
- the vacuum control means is preferably arranged in the vicinity of the stack of cards to be unstacked, which makes it possible to easily control the pressure losses of the vacuum lines.
- each unstacking head 36 comprises two suction cups 40 which are arranged aligned on the plate 38 generally along the longitudinal axis L of the cards to be unstacked so, as can be seen in FIG. 5 on which have been shown the traces 42 of the suction cups on the underside 14, to take each card C in its central part to apply a downward traction force situated generally in the vertical plane passing through the median longitudinal axis L of each menu.
- each unstacking head 36 is mounted movable vertically in both directions by a jack device 66 which will be described later.
- FIGS. 1A to 4B show diagrammatically pipes 41 connecting the suction cups 40 to controlled suction means.
- the control unit (not shown in the figures) of the unstacking installation causes the unstacking head 36 to rise until its suction cups 40 come into contact with the lower face 14 of the last lower card to be unstacked, this movement can be carried out with a reduced overtravel of for example between 0 and 1 mm.
- the installation then causes the card to be gripped by aspiration by the two large suction cups 40, but without at this time causing deformation of the card as can be seen in FIGS. 2A and 2B.
- the installation automatically causes the blowing of pressurized air by the nozzles 34, exactly between the last two lower cards of the stack, in particular by causing a pressure stroke.
- the installation then causes the inversion of the movement of the unstacking head 36 which begins to run vertically downwards as can be seen in FIGS. 3A and 3B.
- the last card of the stack sucked by the suction cups 40 of the gripping head 36 which applies a traction force on the card, passes vertically between the needles 30 which cause its elastic deformation by arching it , with a concavity turned upwards, which has the effect of detaching it from the immediately adjacent upper card, this detachment being completed by the presence of the pressurized air jets blown by the nozzles 34.
- a new unstacking cycle can then start again according to the cycle described above.
- the method according to the invention guarantees an individual separation of the cards, that is to say a unitary unstacking without the risk of simultaneously taking two cards stuck together.
- Each unstacked card is only very slightly bent during its passage between the two longitudinal needles 30 and the internal structure of the body of plastic material does not undergo any modification.
- the method according to the invention makes it possible to achieve very high rates of the order of 7000 cards per hour.
- the method according to the invention can of course be applied in reverse, that is to say by unstacking the cards from the top, the unstacking head 36 coming to grip the last upper card of the stack which then passes vertically along a movement from bottom to top between two longitudinal hands.
- the installation 50 shown in FIGS. 6 and 7 is a double installation, that is to say that it comprises two adjacent unstacking units each comprising in particular a charger 20 and a unstacking head 36 with its corresponding control means.
- the upper part of each installation is a fixed part comprising in particular the charger 20 with its blowing nozzles 34 which, for the same charger, are connected to each other and to a pressurized air circuit (not shown in detail) to which they are connected by fittings 52.
- the upper frame elements 54 which carry the chargers 20 are fixed relative to the lower frame 56 which carries in the upper part two transfer or conveying devices 58 which are illustrated diagrammatically in silhouette in the figures and each of which comprises rails or slides 60 for depositing each unstacked card.
- Each plate 38 of a unstacking head 36 is an element in the form of a thick plate which is fixed in an adjustable manner to the upper end 62 of a rod 64 belonging to a pneumatic or hydraulic cylinder 66 which controls the vertical displacements in both directions of the unstacking head 36.
- the body of the jack 36 is fixed by its lower part 68 in a U-shaped frame element 70 itself carried by the frame 56 and which extends vertically as can be seen in particular in FIG. 8.
- the vertical block 70 which surrounds the cylinder 66 receives in vertical sliding two parallel columns 72 and 74 which are fixed at their upper ends to the plate 38 and which therefore move vertically simultaneously with the latter.
- Column 72 is a solid guide column which is received by sliding, with the interposition of a guide sleeve, in a corresponding hole 76 in block 70.
- the column 74 is in the form of a hollow cylindrical tube comprising a vertical central channel 78 over its entire height which is closed at its lower end by a plug 80, and the upper end of which is in communication with the pipes 41 of the suction cups 40.
- the column tube 74 is slidably received, with the interposition of a guide and sealing sleeve, in a vertical bore 82 of the block 70 in which it slides in leaktight manner and in which a fitting 84 of a pipe opens transversely. 86 connected to a source of vacuum (not shown).
- the tube 74 In its lateral face and in its median vertical part, the tube 74 has a vertical opening 88 which therefore connects the channel 78 to the outside.
- the lower part of the chassis block 70 Opposite the tubular column 74, the lower part of the chassis block 70 includes a window 90 allowing the passage of an articulated lever 92 for controlling a pneumatic drawer 94 whose rod 96 has been shown.
- the free end of the lever 92 comprises a caster 98 which is in contact with the external cylindrical surface of the tubular column 74 and which is capable of cooperating with the frustoconical and larger diameter external surface 102 of the plug 80 as will be explained by the following.
- the installation obviously includes other elements belonging to a control unit which in particular make it possible to control the starting or stopping of the blowing of pressurized air into the nozzles 34 and this preferably automatically as a function of the vertical displacements. of the unstacking and gripping head 36, for example by means of sensors (not shown) for displacement thereof connected electrically, mechanically or pneumatically to the control unit.
- sensors not shown
- the roller 98 is in contact with the cylindrical surface of the tubular column 74 and the drawer 94 is designed to, in this position, control the interruption of the supply of pressurized air to the nozzles 34.
- the control unit supplies the lower chamber of the jack 66 to cause the vertical displacement upwards of the unstacking head 36 starting from the low position illustrated in FIG. 6.
- the tubular column 74 moves vertically relative to the chassis block 70 and the light 88 is then closed by the wall of the vertical bore 82 and it is located opposite the fitting 84, 86 thus ensuring the communication of the suction cups 40 with the vacuum source.
- the ascent of the head 36 and of the columns 74 and 72 continues to come, as was explained above, to take by suction the last lower card from the stack of cards loaded in the charger 20.
- the frustoconical wall 1 02 of the lower plug 80 acts on the lever 92 by means of the wheel 98 to modify the position of the pneumatic slide valve 94 which then puts the nozzles 34 in communication with the source of pressurized air to blow air between the last two bottom cards of the stack, as explained above.
- the suction cups 40 are therefore connected to the vacuum source while the nozzles 34 are connected to the source of pressurized air.
- the installation control unit then causes the downward movement of the head 36 which brings with it the last card of the stack which it has just grasped in order to place it on the transfer 58, 60.
- the continuation of the descent has the effect of increasing the section of the light 88 in contact with the outside; thus the vacuum present in the suction cups 40 becomes more reduced.
- the continuation of the descent has the effect of bringing the line 86 and the connector 84 into line with a solid portion of the external surface of the tubular column 74. The suction is then cut off.
- the design according to the invention using in particular the light 88 precisely dimensioned with its arrangement in the block of the frame 70 makes it possible to solve the synchronization problems inherent in known installations insofar as the synchronization of the control of the connection to the source of depression of the unstacking head no longer depends on the speed of translation of the jack and / or a vacuum distributor, nor on the pressure losses between the distributor and the suction cups, and this regardless of the distance separating the suction cups and the source of depression.
- the design of the installation according to the invention requires practically no overtravel in either direction, which makes it possible to accelerate the rates and to avoid applying shocks to the entire stack or movements.
- the loading of cards in a stack in the feeder 20 is simplified because it is easier to place the cards in a stack on very long needles than on shorter needles arranged along the width as before.
- the unstacking head can be driven by a mechanical cam and / or ball screw system in place of the pneumatic cylinder 66.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00903745A EP1159707A1 (fr) | 1999-02-11 | 2000-02-07 | Procede et installation pour le depilage automatique et a cadence elevee de cartes a circuits integres |
AU25532/00A AU2553200A (en) | 1999-02-11 | 2000-02-07 | Automatic high speed dehacking method and installation for integrated circuit cards |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9901817A FR2790572B1 (fr) | 1999-02-11 | 1999-02-11 | Procede et installation pour le depilage automatique et a cadence elevee de cartes a circuits integres |
FR99/01817 | 1999-02-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000048120A1 true WO2000048120A1 (fr) | 2000-08-17 |
Family
ID=9542040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2000/000286 WO2000048120A1 (fr) | 1999-02-11 | 2000-02-07 | Procede et installation pour le depilage automatique et a cadence elevee de cartes a circuits integres |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1159707A1 (fr) |
AU (1) | AU2553200A (fr) |
FR (1) | FR2790572B1 (fr) |
WO (1) | WO2000048120A1 (fr) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1214917A (en) * | 1968-05-10 | 1970-12-09 | Elektronische Rechenmasch Ind | Controlled document separating device |
US4790525A (en) * | 1984-12-28 | 1988-12-13 | Gao Gesellschaft Fur Automation And Organisation Mbh | Apparatus and a method for separating sheet material |
-
1999
- 1999-02-11 FR FR9901817A patent/FR2790572B1/fr not_active Expired - Fee Related
-
2000
- 2000-02-07 EP EP00903745A patent/EP1159707A1/fr not_active Withdrawn
- 2000-02-07 WO PCT/FR2000/000286 patent/WO2000048120A1/fr not_active Application Discontinuation
- 2000-02-07 AU AU25532/00A patent/AU2553200A/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1214917A (en) * | 1968-05-10 | 1970-12-09 | Elektronische Rechenmasch Ind | Controlled document separating device |
US4790525A (en) * | 1984-12-28 | 1988-12-13 | Gao Gesellschaft Fur Automation And Organisation Mbh | Apparatus and a method for separating sheet material |
Also Published As
Publication number | Publication date |
---|---|
EP1159707A1 (fr) | 2001-12-05 |
FR2790572A1 (fr) | 2000-09-08 |
FR2790572B1 (fr) | 2003-04-25 |
AU2553200A (en) | 2000-08-29 |
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