WO1998024290A2 - Appareil d'amenee et de separation de composants et procede pour separer un premier composant d'une rangee de composants - Google Patents

Appareil d'amenee et de separation de composants et procede pour separer un premier composant d'une rangee de composants Download PDF

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Publication number
WO1998024290A2
WO1998024290A2 PCT/IB1997/001301 IB9701301W WO9824290A2 WO 1998024290 A2 WO1998024290 A2 WO 1998024290A2 IB 9701301 W IB9701301 W IB 9701301W WO 9824290 A2 WO9824290 A2 WO 9824290A2
Authority
WO
WIPO (PCT)
Prior art keywords
component
supply duct
separation
supply
row
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
Application number
PCT/IB1997/001301
Other languages
English (en)
Other versions
WO1998024290A3 (fr
Inventor
Henricus Franciscus Bonekamp
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.)
Koninklijke Philips NV
Philips Norden AB
Original Assignee
Philips Electronics NV
Philips Norden AB
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 Philips Electronics NV, Philips Norden AB filed Critical Philips Electronics NV
Priority to JP10524458A priority Critical patent/JP2000504500A/ja
Publication of WO1998024290A2 publication Critical patent/WO1998024290A2/fr
Publication of WO1998024290A3 publication Critical patent/WO1998024290A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/02—Feeding of components
    • H05K13/021—Loading or unloading of containers

Definitions

  • Component supply and separation apparatus and method of separating a first component from a row of components Component supply and separation apparatus and method of separating a first component from a row of components.
  • the invention relates to a component supply and separation apparatus comprising a supply duct in which components are disposed one after the other in a row, transport means for feeding components through the supply duct towards an outlet of the supply duct, a component separation mechanism disposed near the outlet of the supply duct and having a separation head, which is movable over a given distance away from the outlet of the supply duct and towards the outlet of the supply duct, which separation head has a suction port, the apparatus further comp ⁇ sing pneumatic means for creating a partial vacuum near the suction port to hold a first component of the row on the separation head
  • Such an apparatus is known from US-A-4,953,749.
  • components from a storage chamber are arranged in a row in a supply duct by means of pressu ⁇ zed-air pulses.
  • a component separation mechanism is disposed at the end of the supply duct and comprises a separation head which alternately moves away from and towards the end of the supply duct and which has a suction port to pick up a component trom the row by means of a partial vacuum.
  • a shutter mechanism is disposed at the end of the supply duct and comprises a pivotable lever provided with a shutter by means of which the outlet opening of the supply duct can be shut off When an empty separation head is situated near the outlet opening the shutter is pivoted away, as a result of which the first component is drawn against the separation head by means of a partial vacuum in the suction port, after which the separation head moves away from the supply duct and the shutter is again pivoted to shut off the outlet opening.
  • a problem which can occur with this system is that the separation head and the shutter do not always cooperate correctlv because the pressu ⁇ zed-air pulses in the storage chamber also produce an air pressure in the supply duct, so that after the first component of the row has been drawn against separation head the second component of the row is urged directly against the first component, as a result of which the shutter cannot properly shut off the supply duct and the component jams which is undesirable. Moreover, the component may be damaged This can also occur when the first component is drawn onto the separation head and the second component is also drawn along a little and thereby obstructs the shutter.
  • the component supply and separation apparatus is characterized in that near the outlet the supply duct has at least one suction port for holding the second component of the row in position in the supply duct.
  • the separation head comprises a supporting surface and a stop surface for the component, which supporting surface has a suction port for holding a component in position.
  • the components in the row are advanced until the first component is situated on the supporting surface of the separation head against the stop surface. Subsequently, a partial vacuum is produced both at the suction port in the separation head and at the suction port in the supply duct, as a result of which the first component (on the separation head) and the second component (at the outlet of the supply duct) are simultaneously held by suction.
  • the separated component now lies on the supporting surface of the separation head, which is subsequently moved away from the supply duct. As a result of this, the component can be picked up more easily and reliably from the separation head by, for example, a suction nozzle of a placement head of a component placement machine.
  • a further embodiment of the component supply and separation apparatus is characterized in that an air injection block having a nozzle is connectable to the inlet of the supply duct, enabling pressurized-air pulses to be produced in the supply duct in order to move the components through the supply duct, which pressurized-air pulses have a length of 80-200 ms, preferably 100-1400 ms, and a time interval of 20-100 ms, preferably 40-60 ms, between the pulses.
  • the nozzle is adjustable in height with respect to the supply duct.
  • the invention further relates to a method of separating a first component from a row of components situated in a supply duct, the first component being slid onto a separation head and subsequently being held on this head by means of a partial vacuum, while at the same time the second component is held in position in the supply duct, after which the separation head is moved away from the supply duct and subsequently the partial vacuum is eliminated.
  • the second component is held in the supply duct in that the second component is drawn in position by suction.
  • the component supply and separation apparatus shown in the drawing has a frame 1, which accommodates a supply duct 2 for components 3.
  • the open upper side of the supply duct is covered with a plate 4.
  • the components are disposed one after the other in a row and they are conveyed to an outlet 5 of the supply duct from the right to the left in the Figure.
  • the supply duct serves as a bar magazine for a large number of components, for example SMDs (Surface Mounting Devices).
  • SMDs Surface Mounting Devices
  • an air injection block 7 is disposed near the inlet 6 of the supply duct, which block has a nozzle 8 by means of which air pulses can be produced in the supply duct.
  • the nozzle is adjustable in height, so that the air pulses can be directed to the inlet of the supply duct in an optimum manner.
  • a separation mechanism 9 is disposed near the outlet 5 of the supply duct and enables the first component to be removed from the row. In fact, this is where the first component 3a and the second component 3b of the row are separated from one another.
  • the separation mechanism comprises a separation head 10 having a double suction port 11, in which a partial vacuum can be created.
  • the separation head is slidably mounted on the frame 1 in line with the supply duct 2 downstream of the outlet 5 of the duct and can be driven so as to reciprocate linearly over a given distance in the longitudinal direction of the supply duct.
  • the separation head can be drivable transversely to the supply duct.
  • the separation head is driven pneumatically.
  • the separation head is connected to a piston 13 in a cylinder 14 by means of a rod 12.
  • the separation head 10 has a supporting surface 15 for supporting a component and has a stop surface 16 at the end of the supporting surface.
  • the separation mechanism further has a double suction port 17 in the supply duct near the outlet 5 of the duct. In both suction ports a partial vacuum can be formed in a controlled manner.
  • the pneumatic system comprises a central air supply line 18 from which three air lines 19, 20, 21 lead to the cylinder 14, a vacuum pump 22 and the air injection block 7, respectively.
  • the air lines 19, 20, 21 include valves 22, 24 and 25, respectively.
  • From the vacuum pump 22 a line 26 extends to the double suction port 11 of the separation head 10 and a line 27 to the double suction port 17 near the outlet of the supply duct 2.
  • the vacuum pump operates in accordance with the venturi principle.
  • the valves are, for example, electromagnetically controlled valves, which are controlled by a control circuit 28.
  • the supply and separation apparatus operates as follows: The nozzle 8 is directed to the inlet of the supply duct 2 in an optimum manner. Assuming that the empty separation head 10 is situated near the outlet 5 of the supply duct and all the valves are closed, a separation cycle is started by briefly opening the valve 25 in the air line 21 to the injection block 7. As a result, some pressurized-air pulses are applied to the row of components 3. For example, three pressurized-air pulses may be applied with a length tl of 120 ms and a time interval t2 of 50 ms between the pulses. The components in the row are advanced until the first component 3a on the supporting surface 15 contacts the stop surface 16 of the separation head 10.
  • valve 25 is closed and the valve 24 in the air line 20 is opened, as a result of which a partial vacuum is formed near the suction ports 11 and 17 by means of the vacuum pump 22, the vacuum causing both the first component 3a on the separation head and the second component 3b near the outlet 5 of the supply duct to be held in position.
  • the valve in the 23 in the air line 19 to the cylinder 14 is opened, which causes the piston 13 to be moved against the pressure of the spring 29 and the separation head 10 to be moved away from the supply duct (to the left in the drawing).
  • the first and the second component are separated from one another.
  • the valves 23, 24 are closed again.
  • a placement head 30 can pick up the component 3a from the supporting surface 15.
  • the valve 23 in the air line 19 to the cylinder 14 is then closed again, as a result of which the spring 29 urges the piston 13 to the right and the separation head is moved to the outlet 5 of the supply duct 2. W en the separation head has reached the outlet the valve 23 is closed again and a new cycle can start.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
  • Feeding Of Articles To Conveyors (AREA)

Abstract

Cette invention se rapporte à un appareil d'amenée et de séparation de composants, qui comprend un conduit d'amenée (2), dans lequel les composants (3) sont disposés l'un à la suite de l'autre, en une rangée. Cet appareil comprend une tête de séparation de composant (10) disposée proche d'une sortie (5) du conduit d'amenée, cette tête pouvant être éloignée de la sortie du conduit d'amenée et rapprochée de cette sortie. La tête de séparation (10) et le conduit d'amenée (2) comportent tous les deux un orifice d'aspiration, servant respectivement à maintenir un premier composant (3a) de la rangée sur la tête de séparation et à retenir le second composant (3b) de la rangée dans sa position dans le conduit d'amenée. Cette invention se rapporte également à un procédé correspondant.
PCT/IB1997/001301 1996-11-25 1997-10-20 Appareil d'amenee et de separation de composants et procede pour separer un premier composant d'une rangee de composants Ceased WO1998024290A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10524458A JP2000504500A (ja) 1996-11-25 1997-10-20 部品供給・分離装置および部品の列から第一番目の部品を分離する方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP96203309.8 1996-11-25
EP96203309 1996-11-25

Publications (2)

Publication Number Publication Date
WO1998024290A2 true WO1998024290A2 (fr) 1998-06-04
WO1998024290A3 WO1998024290A3 (fr) 1998-07-16

Family

ID=8224621

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1997/001301 Ceased WO1998024290A2 (fr) 1996-11-25 1997-10-20 Appareil d'amenee et de separation de composants et procede pour separer un premier composant d'une rangee de composants

Country Status (2)

Country Link
JP (1) JP2000504500A (fr)
WO (1) WO1998024290A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10126709A1 (de) * 2001-05-31 2002-12-19 T Mobile Deutschland Gmbh Verfahren zur Verringerung der Latenzzeit bei der Übertragung von Informationen in einem GPRS-Netzwerk

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4953749A (en) * 1986-05-27 1990-09-04 Nitto Kogyo Kabushiki Kaisha Chip separation and alignment apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10126709A1 (de) * 2001-05-31 2002-12-19 T Mobile Deutschland Gmbh Verfahren zur Verringerung der Latenzzeit bei der Übertragung von Informationen in einem GPRS-Netzwerk
DE10126709B4 (de) * 2001-05-31 2007-03-08 T-Mobile Deutschland Gmbh Verfahren zur Verringerung der Latenzzeit bei der Übertragung von Informationen in einem GPRS-Netzwerk

Also Published As

Publication number Publication date
WO1998024290A3 (fr) 1998-07-16
JP2000504500A (ja) 2000-04-11

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