WO2014087485A1 - Dispositif d'acheminement de composant électronique et unité à enrubanner - Google Patents

Dispositif d'acheminement de composant électronique et unité à enrubanner Download PDF

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Publication number
WO2014087485A1
WO2014087485A1 PCT/JP2012/081403 JP2012081403W WO2014087485A1 WO 2014087485 A1 WO2014087485 A1 WO 2014087485A1 JP 2012081403 W JP2012081403 W JP 2012081403W WO 2014087485 A1 WO2014087485 A1 WO 2014087485A1
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WO
WIPO (PCT)
Prior art keywords
pocket
carrier tape
electronic component
sprocket
unit
Prior art date
Application number
PCT/JP2012/081403
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English (en)
Japanese (ja)
Inventor
隆行 的場
木村　浩之
Original Assignee
上野精機株式会社
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.)
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Publication date
Application filed by 上野精機株式会社 filed Critical 上野精機株式会社
Priority to JP2014542627A priority Critical patent/JP5765864B2/ja
Priority to PCT/JP2012/081403 priority patent/WO2014087485A1/fr
Publication of WO2014087485A1 publication Critical patent/WO2014087485A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B15/00—Attaching articles to cards, sheets, strings, webs, or other carriers
    • B65B15/04—Attaching a series of articles, e.g. small electrical components, to a continuous web

Definitions

  • the present invention relates to an electronic component transport apparatus that performs process processing while transporting an electronic component and stores the electronic component on a carrier tape, and a taping unit on which the carrier tape is set.
  • Electronic components such as semiconductor elements are separated into individual pieces through various assembly processes such as dicing, mounting, bonding, and sealing, and then subjected to post-processes such as various inspections and packed in carrier tapes, container tubes, and the like. Shipped.
  • post-processes include a marking process, an appearance inspection, an electrical property inspection, a lead molding process, a classification of electronic components, or a combination of these processes.
  • the post-process including the packing process is mainly performed by an electronic component transport apparatus that transports the electronic component to the process processing mechanism.
  • the electronic component transport apparatus includes a transport mechanism that aligns and transports electronic components and various process processing mechanisms on the transport path.
  • a transport mechanism As the transport mechanism, a turntable transport system, a linear transport system, or the like is generally used, and electronic components are sequentially supplied to various process processing mechanisms arranged on the transport path.
  • the transport mechanism has holding means constituted by vacuum suction, electrostatic suction, Bernoulli chuck, or mechanical chuck mechanism, holds electronic components by the holding means, and sequentially transports the electronic components to the process processing mechanism. To go.
  • a taping unit is installed downstream of the transport path.
  • the taping unit includes a carrier tape in which a plurality of pockets are arranged in the longitudinal direction, and a sprocket that intermittently conveys the carrier tape so as to match the positional relationship between the stop position of the holding means and the pocket.
  • the holding means moved to the stop position is positioned above the pocket of the carrier tape, and the electronic component is detached from the pocket.
  • the presence or absence of electronic components will be confirmed.
  • the falling of the electronic component means that the electronic component is not stored in the correct orientation and position by being caught on the inner wall surface of the pocket. This fall is discriminated by visual observation by the operator or by a camera provided at the rear stage in the feeding direction of the carrier tape.
  • the electronic component transport device is temporarily stopped, and the operator manually replaces it with a non-defective product, or performs automatic excision by mechanical punching.
  • the conventional electronic component transport apparatus includes a posture correction unit and a posture determination unit that correct the posture of the electronic component in the preceding stage on the transport path than the taping unit.
  • a mark indicating the stop position of the holding means in the conveyance direction is provided on the upper surface of the main body of the taping unit, and when the carrier tape is set, the positional deviation amount between the mark and the pocket is measured, and this deviation amount is set to zero.
  • it has been attempted to correct the displacement of the carrier tape in the transport direction and the width direction to eliminate the positional deviation for example, see Patent Document 1).
  • the pockets of the carrier tape are also miniaturized in accordance with the miniaturization of the electronic components, it is difficult to make the intervals between the pockets completely equal, and the intervals may vary. is there. For this reason, even if the positional deviation correction is performed for one pocket and the stop position is adjusted, there is a possibility that the other pockets do not match the stop position.
  • Patent Document 1 in order to solve this problem, a positional shift amount is measured for a plurality of pockets, an average value of the positional shift amounts is calculated, and the average value is used as a shift correction amount.
  • the present invention has been proposed in order to solve the above-described problems. Regardless of the variation in the interval between the plurality of pockets of the carrier tape, the carrier tape is arranged so that the pockets are positioned in an appropriate range. It is an object of the present invention to provide an electronic component transport apparatus and a taping unit that can correct misalignment and prevent the electronic components from falling over easily and more reliably.
  • An electronic component transport device is an electronic component transport device that performs process processing while transporting an electronic component, and is intermittent along the transport path while holding the transport path of the electronic component and the electronic component.
  • a holding means that moves, and the electronic component that is arranged at a stop position of the holding means in the transport path and is held by the holding means is accommodated in a carrier tape in which a plurality of pockets are arranged in the longitudinal direction, and is moved on the transfer path.
  • a correction means for correcting the positional deviation of the carrier tape on the basis of the value are those comprising a.
  • the taping unit may further include mark applying means for applying a mark indicating the stop position of the holding means with respect to the pocket to the carrier tape.
  • the mark applying means may include a pin member attached to the holding means, and the mark indicating the stop position of the holding means may be a hole formed in the carrier tape by the pin member.
  • the mark indicating the stop position of the holding means may be provided on the bottom surface of the pocket of the carrier tape.
  • the mark indicating the stop position of the holding means may be given to a connecting region connecting the pockets of the carrier tape.
  • the pin member may include a pair of needles that are spaced apart so as to open a pair of holes in the connecting region on both ends in the longitudinal direction of the pocket of the carrier tape.
  • the pocket position detecting means may detect the center position of the pocket, and the deviation detecting means may detect a positional deviation amount with respect to a mark indicating the stop position of the holding means at the center position of the pocket.
  • the pocket position detecting means may detect the center position of the pocket, and the displacement detecting means may detect a position displacement amount of the center position of the pocket with respect to an intermediate position of the pair of holes.
  • the taping unit corresponds to a sprocket provided with a plurality of pins that engage with the carrier tape and transfer the carrier tape, a driving unit that rotates the sprocket, and a distance between each pin of the sprocket.
  • Control means for controlling the drive means so as to increase or decrease the amount of rotation of the sprocket.
  • the correction unit may include a sprocket that conveys the carrier tape, and a drive unit that rotates the sprocket by an amount corresponding to a positional shift in the longitudinal direction of the carrier tape.
  • the correction means may include a sprocket that conveys the carrier tape and a micrometer that moves the sprocket by an amount corresponding to a positional deviation in the width direction of the carrier tape.
  • the present invention provides a carrier tape in which a plurality of pockets are arranged in a longitudinal direction, arranged at a stop position of a holding unit that holds electronic components and intermittently moves along a conveyance path.
  • the present invention can also be applied to a taping unit that accommodates and transports the transport path.
  • the amount of positional deviation is detected for a plurality of pockets of the carrier tape, and the positional deviation of the carrier tape is corrected based on the intermediate value between the maximum value and the minimum value. Even with a certain carrier tape, the positional deviation can be corrected so that each pocket is located in an appropriate range. As a result, it is possible to provide an electronic component transport device and a taping unit that are excellent in reliability and economy, because the rolling of electronic components is reduced and the operating rate of the device is improved.
  • FIG. 1 It is a figure which shows typically the dispersion
  • (A) It is a schematic diagram which shows the pocket image imaged with a camera,
  • (b) is a schematic diagram which shows the position shift of the center position of a pocket and the stop position of a holding means. It is a flowchart which shows the position correction operation
  • FIG. 1 is a plan view illustrating a schematic configuration of the electronic component transport device according to the first embodiment.
  • FIG. 2 is a side view illustrating a schematic configuration of the electronic component transport device according to the first embodiment.
  • the embodiment shown in FIGS. 1 and 2 uses the electronic component transport apparatus 1 of the present invention as a post-process processing apparatus that performs various process processes while aligning and transporting the electronic component D. Therefore, the electronic component transport apparatus 1 includes various process processing mechanisms for the electronic component D and a transport mechanism that sequentially transports the electronic component D to the various process processing mechanisms.
  • the electronic component D is a component used for electrical products, and includes a semiconductor element.
  • semiconductor elements include transistors, integrated circuits, resistors, capacitors, and the like.
  • Process processing is mainly a post-process after each assembly process such as dicing, mounting, bonding, and sealing, and includes marking, visual inspection, test contact, sorting, sorting, or a combination thereof. It is.
  • the electronic component transport apparatus 1 according to the present embodiment performs at least a packing process.
  • the transport mechanism includes a turntable 21.
  • the center of the turntable 21 is supported by a drive shaft of a direct drive motor 22 disposed below.
  • the turntable 21 rotates intermittently at a predetermined angle as the direct drive motor 22 is driven.
  • a plurality of holding means 3 for holding the electronic components D are attached to the outer periphery of the turntable 21 at regular intervals along the outer periphery of the turntable 21.
  • the arrangement interval of the holding means 3 is equal to the rotation angle of one pitch of the turntable 21.
  • the outer periphery of the turntable 21 is a conveyance path for the electronic component D. That is, the electronic component D is conveyed along the outer periphery of the turntable 21.
  • the holding means 3 is a suction nozzle 31 that sucks and detaches the electronic component D.
  • the inside of the pipe of the suction nozzle 31 communicates with a pneumatic circuit of a vacuum generator (not shown).
  • the suction nozzle 31 sucks the electronic component D by generating a negative pressure and releases the electronic component D by vacuum break.
  • the suction nozzle 31 is supported by a support portion 32 attached to the outer peripheral portion of the turntable 21 so that the lower end protrudes from the lower surface of the turntable 21, and the protruding end sucks and detaches the electronic component D. It becomes the adsorption
  • the support portion 32 supports the suction nozzle 31 so as to be slidable, and the suction nozzle 31 can be moved up and down with respect to the turntable 21.
  • the ascending / descending direction is a vertical direction when the spreading direction of the turntable 21 is assumed to be a horizontal plane.
  • a drive unit 33 including an operation rod 34 is disposed.
  • the drive unit 33 is specifically a motor and moves the operation rod 34 up and down.
  • the operation rod 34 is disposed with its lower end opposed to the pressed portion 31 b provided at the upper end of the suction nozzle 31, and comes into contact with the pressed portion 31 b of the suction nozzle 31 in accordance with the drive of the drive unit 33. Pressure is applied to push down the suction nozzle 31 downward.
  • a parts feeder 41, a marking unit 42, an appearance inspection unit 43, and a test contact unit are arranged in the rotation direction of the turntable 21, in other words, in order from the previous stage of the transport path.
  • a sorting / sorting unit 45, an attitude determination unit 49, an attitude correction unit 46, a taping unit 47, and a defective product discharge unit 48 are arranged.
  • process processing mechanisms surround the turntable 21 and are arranged at equal intervals in the outer circumferential direction.
  • the arrangement interval is the same as or equal to an integral multiple of the rotation angle of one pitch of the turntable 21.
  • the arrangement position of the process processing mechanism coincides with the stop position P of the holding means 3.
  • the stop position P one of the transport processing mechanisms is arranged. If the number of stop positions P is equal to or greater than the number of transport processing mechanisms 4, these numbers do not have to be the same, and there may be a stop position P at which the transport processing mechanism is not disposed.
  • the parts feeder 41 is a device that supplies the electronic component D to the electronic component transport device 1.
  • This parts feeder 41 combines a circular vibration parts feeder and a linear supply vibration feeder, and arranges and continuously conveys a large number of electronic components D to the end of the conveyance path immediately below the outer peripheral edge of the turntable 21.
  • the marking unit 42 has a lens for laser irradiation facing the electronic component D, and performs marking by irradiating the electronic component D with laser.
  • the appearance inspection unit 43 has a camera, takes an image of the electronic component D, and inspects the presence or absence of an electrode shape of the electronic component D, a surface defect, a flaw, a dirt, a foreign substance and the like from the image.
  • the test contact unit 44 has a contact made of a metal such as a beryllium copper plate or a pin. The contact is brought into contact with the lead of the electronic component D, and a current is passed or a voltage is applied to the electronic component. Measure and inspect electrical characteristics such as voltage, current, resistance, or frequency of D.
  • the classification / sorting unit 45 classifies the electronic component D into a defective product and a non-defective product according to the electrical characteristics and the result of the appearance inspection, and classifies and shoots according to the level.
  • the posture determination unit 49 includes a camera and determines the posture of the electronic component D.
  • the posture of the electronic component D to be determined includes the orientation and the holding position by the suction nozzle 31.
  • the posture correction unit 46 aligns the electronic component D and positions the holding position according to the posture determined by the posture determination unit 49.
  • the taping unit 47 stores and packs the electronic component D determined to be non-defective as will be described later.
  • the defective product discharge unit 48 discharges the electronic component D that has not been taped and packed from the electronic component inspection apparatus 1.
  • Such an electronic component transport apparatus 1 includes a transport control unit (not shown), and sends electrical signals to the direct drive motor 22, the drive unit 33 that raises and lowers the suction nozzle 31, the vacuum generator, and various process processing mechanisms 41 to 49. These operation timings are controlled by sending them out. That is, the conveyance control unit includes a ROM, a CPU, and a driver that store a control program, and outputs an operation signal at each timing to each drive mechanism through an interface according to the control program.
  • the electronic component transport apparatus 1 starts processing the electronic component D as described below under the control of the transport control unit.
  • the turntable 21 repeats rotation at a predetermined angle and stop for a predetermined time.
  • Each suction nozzle 31 sequentially moves to each stop position P on the outer periphery of the turntable 21 by intermittent rotation of the turntable 21.
  • each suction nozzle 31 is moved to the stop position P, it is lowered toward the stage of the process processing mechanisms 41 to 49 by the operation of the drive unit 33 and the operation rod 34, and the electronic component D is detached by vacuum break.
  • the process processing mechanisms 41 to 49 process the electronic component D.
  • the suction nozzle 31 descends again toward the stage and holds the electronic component D.
  • the suction nozzle 31 descends again toward the stage and holds the electronic component D.
  • the suction nozzle 31 descends again toward the stage and holds the electronic component D.
  • the electronic component D is supplied to the conveying path from the parts feeder 41 in the first cycle, and in each subsequent cycle, the marking unit 42, the appearance inspection unit 43, and the test are sequentially performed. It is supplied to the contact unit 44 and the sorting / sorting unit 45 to perform various processes.
  • the electronic component D is supplied to the taping unit 47 and packed in a carrier tape.
  • the electronic component D that has not been packed due to a defect is supplied to the defective product discharge unit 48 and discharged from the electronic component transport apparatus 1.
  • FIG. 3 is a top view showing a schematic configuration of the taping unit 47.
  • FIG. 4 is a side view showing a schematic configuration of the taping unit 47.
  • FIG. 5 is a plan view showing a schematic configuration of the taping unit 47.
  • the taping unit 47 includes a guide rail 471 extending in the longitudinal direction of the apparatus on the upper surface of the main body, and intermittently conveys the carrier tape 50 on the guide rail 471.
  • the taping unit 47 is disposed at the stop position P of the holding means in the transport path, and the electronic component detached from the holding means is accommodated in the carrier tape 50.
  • the carrier tape 50 is a packaging material that houses the electronic component D, and has a belt shape.
  • a plurality of concave pockets 51 are formed on the carrier tape 50 by embossing or the like at a predetermined distance in the longitudinal direction.
  • An area between the pockets 51 is referred to as a connecting area 52.
  • the pocket 51 is a storage area for the electronic component D. That is, by the taping unit 47, each pocket 51 is sequentially transferred to the stop position P of the holding means 3, and electronic components are accommodated in each pocket 51.
  • Sprockets 472 are disposed at both ends of the taping unit 47 in the longitudinal direction. 3 and 4, only one sprocket 472 is shown.
  • the sprocket 472 has a cylindrical roll shape and is rotatable via a central axis.
  • a plurality of pins protruding along the circumferential direction are provided on the circumferential surface of the sprocket. The pins are arranged at equal intervals, but there may be slight variations depending on the pins.
  • the sprocket 472 is mechanically connected to the drive motor 473 by a shaft, and rotates by receiving the drive force of the drive motor 473.
  • Examples of the drive motor 473 include a stepping motor that can achieve a minute rotation angle. As described above, when the interval between the pins varies, the rotation angle can be adjusted according to each interval.
  • the carrier tape 50 has perforations (not shown) that are spaced apart by a predetermined distance from one of the long sides.
  • the pins provided on its peripheral surface are sequentially caught by perforation, and the carrier tape 50 is drawn onto the guide rail 471 and transferred.
  • an electronic component is accommodated at the stop position P.
  • the carrier tape 50 containing the electronic components travels on the guide rail 471 toward the other sprocket 472 and is wound around the other sprocket 472 and packed.
  • the electronic component housed in the carrier tape 50 is formed on the guide rail 471 and transferred on the transfer path realized by the movement of the carrier tape 50 by the sprocket 472. Also, the electronic component is transferred in the transfer direction, which is the direction in which the carrier tape 50 is unwound by one sprocket 472.
  • the taping unit 47 includes a camera 474 on the carrier tape 50 transfer path.
  • the camera 474 is an image pickup unit having an image pickup device such as a CMOS or a CCD, and takes an image of one point on the transfer path of the carrier tape 50.
  • the arrangement position of the camera 474 is a stage after the stop position P, and is an upper position where the pocket 51 in the traveling direction of the carrier tape 50 can be imaged, for example.
  • the camera 474 is connected to the control unit 477.
  • the control unit 477 includes a defect detection unit (not shown), and an image captured by the camera 474 is transmitted to the defect detection unit.
  • the defect detection unit determines whether or not the electronic component D is defective from the captured image. If a defect is detected, the electronic component D is removed from the pocket 51 by a removing means such as a chuck or a suction nozzle or by manual operation.
  • the term “defective” is not only when the appearance of the electronic component is flawed, but also when the electronic component is not stored in the pocket 51 in the correct direction or position, or when the front and back are not stored in the correct orientation. Including.
  • the taping unit 47 position correction in the longitudinal direction and the width direction of the carrier tape 50 is possible.
  • the taping unit 47 performs a position correction operation for detecting the positional deviation of the carrier tape 50 and eliminating the positional deviation.
  • the taping unit 47 is provided with mark applying means for applying a mark indicating the stop position P of the holding means to each pocket 51.
  • the camera 474 and the control unit 477 described above function as a pocket position detection unit that detects the pocket position and a shift detection unit that detects a positional shift amount between the mark and the pocket 51.
  • the sprocket 472 and the drive unit described above function as a correction unit that corrects a positional deviation in the transport direction of the carrier tape 50.
  • the taping unit 47 includes a screw adjuster 475 including a micrometer as a correction unit that corrects the positional deviation of the carrier tape 50 in the width direction.
  • the taping unit 47 includes a pin member 479 that is detachably attached to the tip of the suction nozzle 31 that is a holding unit as a mark applying unit.
  • the pin member 479 includes a base end portion 479a on a column attached to the suction nozzle and a needle portion 479b extending from the center of the base end tip.
  • the base end portion 479a on the column has an outer diameter that substantially matches the suction nozzle.
  • the suction nozzle 31 of the holding means 3 is removed from the support portion 32, and a pin member 479 is attached to the support portion 32 and used instead.
  • the needle portion 479b has a cone shape with a sharp tip.
  • the needle portion 479 b comes into contact with and penetrates the carrier tape 50 located at the stop position P, and a substantially circular hole 511 is made in the carrier tape 50. That is, this hole 511 vacated by the needle portion 479 b becomes a mark indicating the stop position P of the holding means for each pocket 51.
  • the hole 511 is formed in the bottom surface 510 of the pocket 51 of the carrier tape 50. That is, by lowering the pin member 479 while feeding the carrier tape 50 at the same pitch in the normal taping process, as shown in FIG. 5, each bottom surface 510 of each of the continuous pockets 51a, 51b, 51c, 51d, 51e. Will be given a mark. The length and diameter of the needle portion 479b are appropriately adjusted so that the hole 511 has an appropriate size as a mark.
  • the longitudinal position correction mechanism of the carrier tape 50 is the sprocket 472 and the drive motor 473 as described above. By driving the drive motor 473 and rotating the sprocket 472 by a predetermined angle, the position of the carrier tape 50 in the longitudinal direction is offset.
  • the position correction mechanism in the width direction includes a screw adjuster 475 and a compression spring 476.
  • the screw adjuster 475 is a screw mechanism having a micrometer head, and is provided so that the screw tip comes into contact with one side surface of the sprocket 472.
  • the micrometer head converts the rotation angle of the screw into a displacement amount of the screw position and reflects the displacement amount on the scale.
  • the compression spring 476 is fixed so as to abut on the opposite side surface of the sprocket 472 and applies a biasing force in the direction of the screw adjuster 475.
  • the screw adjuster 475 pushes and moves in the width direction by sliding the sprocket 472 against the shaft against the pressing force of the compression spring 476 by increasing the protruding length of the screw tip by adjusting the screw.
  • the protrusion length of the screw adjuster 475 is reduced, that is, when the tip of the screw adjuster 475 is moved away from the end face of the sprocket 472, the sprocket 472 moves in the opposite direction by the pressing force of the compression spring 476.
  • the position correction can be performed by mounting the table itself of the taping unit on the rail and moving it in the width direction.
  • Control of the position correction operation of the carrier tape 50 is performed by the control unit 477 based on the photographing result by the camera 474.
  • the control unit 477 includes, for example, an arithmetic processing device that executes processing according to a program to control each mechanism, a main storage device that stores a program and an arithmetic processing result of the arithmetic processing device, an external storage device that stores a program, and each mechanism A driver that actually operates the computer and a monitor that displays a screen are included.
  • the control unit 477 may be provided independently by the taping unit 47 or may be included in the configuration of the transport control unit of the electronic component transport apparatus 1.
  • FIG. 6 is a block diagram illustrating a part of the configuration of the control unit 477.
  • the control unit 477 includes a tape feed control unit 477a, an elevation control unit 477b, a camera control unit 477c, an image processing unit 477d, a displacement detection unit 477e, a display unit 477f, and a correction amount calculation.
  • the tape feed control unit 477a drives the drive motor 473 that rotates the sprocket 472 to position the pocket 51a of the carrier tape 50 at the stop position P.
  • the tape feed controller 477a moves the carrier tape 50 by a predetermined distance. This moving distance is equal to the distance from the stop position P to the shooting point C of the camera 474. That is, the pocket 51a at the stop position P and the connecting area 52 are moved to the photographing point C, respectively.
  • the pins of the sprocket 472 are arranged at equal intervals, but there may be slight variations in the distance between the pins of the sprocket 472.
  • FIG. 7 is a diagram schematically illustrating an example of processing for correcting the variation in the pin interval of the sprocket 472 by the tape feed control unit 477a.
  • Four pins j1, j2, j3, and j4 are formed on the peripheral surface of the sprocket 472.
  • the distance between the pins j1 and j2 is t, the distance t + 1 between the pins j2 and j3, and the distance t ⁇ between the pins j3 and j4.
  • the distance between each pin is different from 1 and there is variation.
  • the storage unit (not shown) of the taping unit 47 stores in advance the order of the four pins j1, j2, j3, j4 and the intervals t, t + 1, t ⁇ 1 of the pins. Then, the tape feed controller 477a controls the drive of the drive motor 473 according to the stored interval between the pins, and increases or decreases the rotation angle of the sprocket 472. As a result, the pin variation of the sprocket 472 is corrected, and the pockets 51 are sequentially transferred to the stop position P at a pitch that matches the conveyance pitch of the main table.
  • the lifting control unit 477b drives the driving unit 33 to lower the pin member 479 toward the carrier tape 50 in order to form the hole 511.
  • the lowered position is the bottom surface 510 of the pocket 51 a of the carrier tape 50. That is, the tape feed control unit 477a moves the bottom surface 510 of the pocket 51a to the stop position P before the control by the elevation control unit 477b.
  • the descending amount is set such that the tip of the needle portion 479b penetrates the bottom surface 510 of the pocket 51a and a substantially circular hole 511 is formed.
  • FIG. 8A is a schematic diagram illustrating an example of the pocket image Tp. A hole 511 formed on the bottom surface 510 of the pocket 51a is also photographed in the pocket image Tp.
  • the image processing unit 477d analyzes the image data of the shooting point C acquired by the camera 474, and specifies the center position P1 of the pocket 51a. Specifically, the image processing unit 477d detects the contour of the pocket 51a through binarization processing, normalization processing, contour extraction processing, and the like. Further, the intersection of the center line of the long side and the center line of the short side of the pocket 51a is specified as the center position P1 of the pocket 51a. Similarly, the image processing unit 477d analyzes the image data to identify the area of the hole 511, further detects the center of gravity coordinates of the hole, and identifies the center position P2 of the hole.
  • the displacement detection unit 477e detects a displacement amount of the center position P1 of the pocket 51a with respect to the center position P2 of the hole 511.
  • FIG. 8B is a schematic diagram showing a positional deviation between the pocket center position P1 and the hole center position P2.
  • the position of the hole 511 is a position when the holding means 3 moves to the stop position P. That is, if the carrier tape 50 is set with high accuracy and the pocket 51a is accurately moved to the stop position P, there is no displacement between the center position P1 of the pocket 51a and the center position P2 of the hole 511.
  • the positional deviation amount is calculated by subtracting the X direction and the Y direction of the coordinates indicating the center position P1 of the pocket 51a and the center position P2 of the hole 511, respectively.
  • the camera 474 is arranged so that the X direction on the image corresponds to the width direction of the carrier tape 50 and the Y direction on the image corresponds to the longitudinal direction of the carrier tape 50.
  • the positional shift amount calculated for the pocket 51a is stored in a storage unit (not shown).
  • the control unit 477 sequentially repeats the same processing for the successive pockets 51b, 51c, 51d, and 51e, calculates these positional deviation amounts, and stores them in the storage unit.
  • the number of pockets 51 for calculating the positional deviation can be set as appropriate, in the present embodiment, for example, the positional deviation amount is calculated for five pockets 51a, 51b, 51c, 51d, and 51e.
  • the correction amount calculation unit 477g selects a maximum value and a minimum value from a plurality of positional deviation amounts stored in the storage unit, calculates an intermediate value thereof, and determines a deviation correction amount from the intermediate value.
  • This intermediate value indicates the amount of deviation in the X and Y directions to be corrected. Therefore, in each of the X direction and the Y direction, movement in the opposite direction, which is the same amount as the amount of displacement, becomes a displacement correction amount for eliminating the position displacement.
  • the display unit 477f is a monitor and displays the calculation result of the correction amount calculation unit 477g, that is, the deviation correction amount.
  • the deviation correction amount is displayed separately in the X direction and the Y direction.
  • the input device 477i is a user input interface and is used to switch the operation mode of the electronic component transport device 1. As the operation mode, a position correction mode for performing at least position shift detection and position shift correction is prepared. Examples of the input device 477i include a button, a touch panel, or a mouse. When the input device 477i is configured by a touch panel display, it can be shared with the display unit 477f.
  • the correction control unit 477h drives the drive motor 473 that rotates the sprocket 472 to move the carrier tape 50 by a distance corresponding to the amount of deviation correction in the Y direction, that is, the amount of deviation correction in the longitudinal direction of the carrier tape 50.
  • the width direction of the carrier tape 50 is moved by the user adjusting the screw adjuster 475 while referring to the amount of deviation correction in the X direction of the display unit 477f.
  • FIG. 9 is a flowchart showing the position correction operation.
  • FIG. 10 is a schematic diagram illustrating an example of a position correction operation for determining a shift correction amount from a plurality of position shift amounts.
  • the carrier tape 50 is set on the taping unit 47 by the user (step S01).
  • the carrier tape 50 is set so that the pocket 51a is positioned at the stop position P.
  • a positional shift may occur due to a lot difference or a positioning error at the time of setting.
  • the center position P1 of the pocket 51a may have a positional deviation G ( ⁇ X, ⁇ Y) with respect to the stop position P of the holding means 3. is there.
  • step S02 the suction nozzle 31 is removed from the support portion 32 of the holding means 3 by the user, and a pin member 479 is attached as a mark providing means instead (step S02).
  • the setting of the carrier tape 50 in step S01 and the attachment of the pin member 479 in step S02 may be performed before and after.
  • the position correction mode is selected by the user using the input device 477i (step S03).
  • the elevation controller 477b lowers the pin member 479.
  • the needle portion 479b at the tip of the pin member 479 contacts and penetrates the bottom surface 510 of the pocket 51a to form a substantially circular hole 511 (step S04).
  • This hole 511 serves as a mark indicating the stop position P of the holding means with respect to the pocket 51a.
  • the tape feed controller 477a moves the carrier tape 50 by the distance that the pocket 51a moves from the stop position P to the shooting point C of the camera 474 (step S05).
  • the tape feed controller 477a increases or decreases the rotation angle of the sprocket 472 for each pitch in accordance with the pin spacing stored in advance. As a result, variations in the pins of the sprocket 472 are absorbed, and the carrier tape 50 is transferred at the same pitch.
  • the camera control unit 477c causes the camera 474 to photograph the pocket image Tp (step S06).
  • the pocket image Tp projects the bottom surface 510 of the pocket 51a and the hole 511 formed in the bottom surface 510.
  • the image processing unit 477d detects the bottom surface 510 and the hole 511 of the pocket 51a from the pocket image Tp, and specifies the center position P1 of the pocket 51a and the center position P2 of the hole 511, that is, the stop position P of the holding means (step S07). .
  • the pocket image Tp is subjected to binarization processing, normalization processing, contour extraction processing, and the like, so that the region of the bottom surface 510 is distinguished from other regions, and the center line of the long side and the center of the short side of the bottom surface 510 are further distinguished. The intersection of the lines is calculated as the center position P1 of the pocket 51a.
  • the hole 511 is also subjected to binarization processing, normalization processing, contour extraction processing, and the like, so that the region of the hole 511 is distinguished from other regions, and the barycentric coordinates of the region are calculated as the center position P2 of the hole 511.
  • the displacement detection unit 477e detects the amount of displacement of the calculated center position P1 of the pocket 51a with respect to the center position P2 of the hole 511 (step S08). Specifically, the coordinates of the center position P1 of the pocket 51a and the coordinates of the center position of the hole 511 are differentiated for each of the X coordinate and the Y coordinate, and as shown in FIG. 8B, the positional deviation amount ( ⁇ X, ⁇ Y ) Is calculated.
  • step S01 to step S08 is sequentially performed to acquire the total amount of positional deviation for five pockets (step S09).
  • the carrier tape 50 is transferred at the same pitch as the taping process, and the mark applying process and the positional deviation are successively performed on the pockets 51a to 51e sequentially entering the stop position P and the photographing point C. It is efficient if the amount detection process is performed.
  • the mark imparting process and the positional deviation amount detection process are performed on the five pockets 51 adjacent to each other, but the positional deviation detection is performed not for the adjacent pockets but for a predetermined number of pockets by adjusting the transfer pitch. You can go.
  • the correction amount calculation unit 477g calculates an intermediate value between the maximum value and the minimum value from the positional shift amounts of the five pockets 51a to 51e acquired by the shift detection unit 477e, and determines the shift correction amount (step S10). .
  • the calculated intermediate value indicates the amount of positional deviation in the X direction and the Y direction to be corrected.
  • FIG. 10 schematically shows an example of the deviation correction amount calculation.
  • Different displacement amounts are detected in the five pockets 51a to 51e.
  • an intermediate value between the maximum value and the minimum value of the positional deviation amount is calculated.
  • the display unit 477f displays the deviation correction amount in each of the X direction and the Y direction, that is, the width direction and the longitudinal direction of the carrier tape 50 (step S11).
  • the correction control unit 477h moves the carrier tape 50 in the longitudinal direction by a distance corresponding to the displacement correction amount in the longitudinal direction determined by the correction amount calculation unit 477g (step S12).
  • the screw adjuster 475 is adjusted by the user, and the carrier tape 50 is moved in the width direction by moving the sprocket 472 by a distance corresponding to the displacement correction amount in the width direction determined by the correction amount calculation unit 477g. Move (step S13).
  • the electronic component conveying apparatus 1 and the taping unit 47 detect the positional deviation amount of the pocket position with respect to the stop position P of the holding unit for the plurality of pockets 51, and The positional deviation of the carrier tape 50 is corrected based on an intermediate value between the maximum value and the minimum value.
  • the pin member 479 is attached to the holding means, and the hole 511 is formed in the bottom surface 510 of the pocket 51 using the pin member 479.
  • the hole 511 was used as a mark indicating the stop position P of the holding means, and the amount of positional deviation was detected by comparing the pocket position with the mark position.
  • the mark when a mark indicating the stop position P of the holding means is provided on the base of the taping unit 47, the mark can be used as a reference for correcting the positional deviation in the longitudinal direction of the carrier tape 50, but the reference in the width direction. It cannot be.
  • the holding means since the holding means is used to mark the bottom surface 510 of the pocket 51 of the carrier tape 50 that actually accommodates the electronic component, accurate positional deviation correction is performed in the longitudinal direction. It can be performed not only in the width direction.
  • the hole 511 has a clear outline and can be easily distinguished from other parts during image processing, and thus is suitable as a mark indicating the stop position P of the holding means.
  • the hole 511 has a substantially circular shape, the center of the circle can be easily calculated, so that deviation detection is also easy.
  • the outline of the pocket 51 is clear and has a fixed shape, it can be easily distinguished from other parts in image processing. Further, for example, the rectangular pocket 51 can easily grasp the center position P1 of the pocket 51 by calculating the intersection of the long side center line and the short side center line.
  • a hole 511 serving as a mark is formed in the carrier tape 50, and the hole 511 and the center position P1 of the pocket 51 are used as comparison targets for positional deviation, so that the photographing point C of the camera 474 is set to the stop position P of the holding means. It is not necessary to perform high-precision adjustment so as to correspond completely, and accordingly, the time for exchanging the carrier tape 50 can be reduced, and the operating rate can be improved.
  • the tape feed control unit 477a controls the drive motor 473 according to the difference in the distance between the pins of the sprocket 472 to increase or decrease the rotation amount of the sprocket 472.
  • the carrier tape 50 can be transported at an accurate pitch by absorbing variations in the pin spacing of the sprocket 472.
  • FIG. 11 is a side view showing a schematic configuration of the taping unit 47 and the mark applying means.
  • FIG. 12 is a schematic diagram showing a positional deviation between the center position P1 of the pocket 51 and the stop position P of the holding means.
  • the pin member 479 has a single cone-shaped needle portion 479b.
  • the pin member 479 includes a pair of needle portions 479c and 479c that protrude from the distal end of the base end portion 479a on the column and extend in two branches.
  • the pair of needle portions 479c, 479c is a flat blade with a thin wall and a sharp tip, and is substantially rectangular when viewed from both side surfaces of the base end portion 479a.
  • the pair of needle portions 479c and 479c are arranged in parallel to each other and spaced from each other. The interval is set to be slightly larger than the length of one pocket of the carrier tape 50 in the longitudinal direction.
  • the pin member 479 is used by removing the suction nozzle 31 of the holding means 3 from the support portion 32 and attaching the base end portion 479a of the pin member 479 to the support portion 32 instead.
  • the pair of needle portions 479 c and 479 c are attached to the support portion 32 so that the flat blades are parallel to the width direction of the carrier tape 50.
  • the tape feed controller 477a moves the carrier tape 50 so that the bottom surface 510 of the pocket 51a is located at the stop position P, as in the first embodiment.
  • the elevation control unit 477b lowers the pin member 479 toward the bottom surface 510 of the pocket 51a of the carrier tape 50.
  • the distance between the pair of needle portions 479c, 479c of the pin member 479 is set to be slightly larger than the length of the pocket 51a in the longitudinal direction. Therefore, the tip ends of the pair of needle portions 479c and 479c come into contact with and penetrate the surface of the connecting region 52 on both ends of the pocket 51a to form a pair of holes 512 and 512. Since the pair of needle portions 479c and 479c are each in the shape of a flat blade, a substantially rectangular hole is formed in the connecting region 52.
  • the camera control unit 477c causes the camera 474 to photograph the pocket 51a located at the photographing point C including the connecting regions 52 on both ends in the longitudinal direction.
  • the image processing unit 477d analyzes the image data of the photographing point C acquired by the camera 474, and specifies the center position P1 of the pocket 51a and the barycentric coordinates of the pair of holes 512 and 512, that is, the center position P2.
  • the image processing unit 477d further detects an intermediate position P3 of a line connecting the center positions P2 of the pair of holes 512 and 512.
  • the pair of holes 512 and 512 are formed by a pair of needle portions 479 c and 479 c attached to the holding means 3 instead of the suction nozzle 31. Accordingly, as shown in FIG. 12A, an intermediate position P3 between the pair of holes 512 and 512 indicates a stop position P of the holding unit 3. Therefore, the displacement detection unit 477e compares the intermediate position P3 of the pair of holes 512 and 512 with the center position P1 of the pocket 51a, as shown in FIGS. 12B and 12C. The positional deviation amount in the direction and the Y direction can be detected.
  • the deviation detection unit 477e acquires the positional deviation amounts for the plurality of pockets 51a to 51e, and the correction amount calculation unit 477g calculates the maximum value and the minimum value from the obtained plural positional deviation amounts. Is selected, an intermediate value thereof is calculated, and a deviation correction amount is determined from the intermediate value. Then, deviation correction is performed in the correction control unit.
  • the pair of holes 512 and 512 are opened in the connecting region 52 on both ends in the longitudinal direction of the pocket 51 using the pair of needle portions 479c and 479c.
  • a negative pressure supply hole is provided through the bottom surface 510 of the pocket 51.
  • the position of the accommodated electronic component D is fixed by supplying a negative pressure.
  • a hole is formed in the bottom surface 510 of the pocket 51, it may overlap with the negative pressure supply hole, and the hole may not act as a mark indicating the stop position P of the holding means.
  • by forming a hole in the connecting region 52 of the pocket 51 it is possible to detect a positional shift without being obstructed by the negative pressure supply hole.
  • the transport mechanism may be a linear transport system, A plurality of turntables 21 may constitute one transport path.
  • the holding means 3 instead of the suction nozzle 31 for sucking and releasing the electronic component by generating and breaking a vacuum, an electrostatic chucking method, a Bernoulli chuck method, or a chuck mechanism for mechanically holding the electronic component D is arranged. May be.
  • the various process processing mechanisms 41 to 49 are not limited to the types described above, and can be replaced with various process processing mechanisms, and the arrangement order can be changed as appropriate.
  • the suction nozzle 31 is removed from the holding means 3 and the pin member 479 is attached instead of the holding means 3 in the position correction operation.
  • the base end portion of the pin member 479 is formed in a hollow cylindrical shape so as to be fitted on the outer periphery of the suction nozzle, so that the position correction operation can be performed without removing the suction nozzle.
  • a hole is formed in the bottom surface 510 of the pocket 51 of the carrier tape 50 with a conical needle portion having a sharp tip, but the flat blade-like needle portion used in the second embodiment is used. May be used.
  • a hole is formed in the connecting region 52 of the pocket 51 with a flat sword-shaped needle portion, but a conical needle portion used in the first embodiment may be used.
  • a hole is used as the mark indicating the stop position P of the holding means, but the outline is clear and a hole is used.
  • the carrier tape 50 may be indented using the suction nozzle itself, and the indentation may be used as a mark.
  • a stamp containing ink may be attached to the holding means, and a colored mark may be attached to the carrier tape 50.

Abstract

L'invention concerne un dispositif d'acheminement de composant électronique qui permet facilement et de manière fiable d'éviter que les composants électroniques ne roulent durant un emballage sur un ruban transporteur ; et une unité à enrubanner. Le dispositif d'acheminement de composant électronique (1) et l'unité à enrubanner (47) détectent le niveau d'importance d'écart de position de la position d'une poche par rapport à la position d'arrêt (P) d'un moyen de maintien (3) pour une pluralité de poches (51) d'un ruban transporteur (50) qui emballe des composants électroniques (D), et sur la base de la valeur intermédiaire de la valeur la plus élevée et de la valeur la plus petite de la pluralité de niveaux d'importance d'écart de position, corrigent l'écart de position du ruban transporteur (50) en déplaçant le ruban transporteur dans le sens de la largeur et dans le sens de la longueur.
PCT/JP2012/081403 2012-12-04 2012-12-04 Dispositif d'acheminement de composant électronique et unité à enrubanner WO2014087485A1 (fr)

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JP2014542627A JP5765864B2 (ja) 2012-12-04 2012-12-04 電子部品搬送装置及びテーピングユニット
PCT/JP2012/081403 WO2014087485A1 (fr) 2012-12-04 2012-12-04 Dispositif d'acheminement de composant électronique et unité à enrubanner

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JP2016013583A (ja) * 2014-07-01 2016-01-28 アキム株式会社 搬送装置
JP2018193129A (ja) * 2017-05-16 2018-12-06 太陽誘電株式会社 電子部品挿入装置、電子部品収納テープ製造装置、電子部品挿入方法、ならびに、電子部品収納テープ製造方法
JP2019182494A (ja) * 2018-04-11 2019-10-24 ワイエイシイガーター株式会社 テープ送り装置
CN110481839A (zh) * 2018-05-14 2019-11-22 深圳市复德科技有限公司 载带封装方法、装置及设备
WO2021141058A1 (fr) * 2020-01-10 2021-07-15 上野精機株式会社 Dispositif de transfert de composant électronique
US11377242B2 (en) * 2018-06-21 2022-07-05 Taiyo Yuden Co., Ltd. Taping apparatus and taping method

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JP2004182293A (ja) * 2002-12-03 2004-07-02 Ueno Seiki Kk 半導体装置のテーピング装置
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JP2016013583A (ja) * 2014-07-01 2016-01-28 アキム株式会社 搬送装置
JP2018193129A (ja) * 2017-05-16 2018-12-06 太陽誘電株式会社 電子部品挿入装置、電子部品収納テープ製造装置、電子部品挿入方法、ならびに、電子部品収納テープ製造方法
JP6990590B2 (ja) 2017-05-16 2022-01-12 太陽誘電株式会社 電子部品挿入装置、電子部品収納テープ製造装置、電子部品挿入方法、ならびに、電子部品収納テープ製造方法
TWI772377B (zh) * 2017-05-16 2022-08-01 日商太陽誘電股份有限公司 電子零件插入裝置、電子零件收納帶製造裝置、電子零件插入方法及電子零件收納帶製造方法
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CN110481839A (zh) * 2018-05-14 2019-11-22 深圳市复德科技有限公司 载带封装方法、装置及设备
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WO2021141058A1 (fr) * 2020-01-10 2021-07-15 上野精機株式会社 Dispositif de transfert de composant électronique

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