JP2009212191A - Tape feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tape feeder can easily confirm the occurrence of poor top tape recovery from the outside. <P>SOLUTION: There are openings 24, 25, 26 at three places on a sidewall 22 for constituting the casing of the tape feeder. Through the openings 24, 25, 26, one part of the outer periphery of gears 18, 19 and an engaging site 29 between the gear 19 and a driving gear 23 is viewed from the outside of the tape feeder 3. When the tape feeder urgently stops during operation, the inside is viewed from the openings 24, 25 to determine whether the poor recovery of the top tape 16 has caused the stop of the tape feeder. Furthermore, it is verified whether the influence of winding of the top tape 16 has reached a mechanism system by viewing from the opening 26. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a tape feeder.

A tape feeder is widely used as an apparatus for supplying electronic components to an electronic component mounting apparatus that continuously mounts electronic components on a substrate. The tape feeder is a device that performs a feeding operation of a carrier tape containing electronic components at an equal pitch, and conveys the electronic components to a pickup position by a nozzle provided in the electronic component mounting apparatus. An electronic component take-out port is provided at the pickup position, and a top tape collecting means for collecting the top tape separated from the carrier tape is provided at a position upstream of the take-out port with respect to the carrier tape feeding direction. The top tape seals the electronic component to the carrier tape, and the electronic component can be taken out from the carrier tape by peeling the top tape (see Patent Document 1).
JP 2003-273579 A

  The top tape is peeled off from the carrier tape by the rotation of a pair of gears sandwiched from both sides, and is sent out from between the pair of gears toward the collection chamber by the peeled amount. However, the top tape is very thin and easily bends by an external force. Therefore, the top tape may be deformed along the outer peripheral shape of the gear and wound around the gear as it is. In this case, since an excessive load is applied to the gear, the safety device of the tape feeder is activated and the supply of the electronic components is stopped. Causes of such an emergency stop of the tape feeder include the above-mentioned relatively minor problems due to poor recovery of the top tape, as well as the identification of the cause and the original state, such as contamination of electronic parts into the mechanism part and problems due to the mechanism itself. Although there are severe cases that require time and effort to return, these are not directly perceivable from the appearance, and it has been extremely difficult to deal with an emergency stop immediately and accurately.

  The invention disclosed in Patent Document 1 is intended to forcibly peel off the top tape entangled by the claw engaging with the outer periphery of the gear from the outer periphery in order to prevent the top tape from being wound around the gear. . This greatly reduces the frequency of occurrence of top tape collection failure, but does not directly contribute to the identification of the cause of the emergency stop being the top tape collection failure.

  Accordingly, an object of the present invention is to provide a tape feeder capable of easily confirming the occurrence of a top tape collection failure from the outside.

  The tape feeder according to claim 1 is a tape feeder that sequentially transports a plurality of electronic components stored in the carrier tape to a take-out position by performing a feeding operation of the carrier tape, the top tape being peeled off from the carrier tape. A pair of gears that sandwich the pair of gears, a top tape collecting means that collects the top tape by applying a rotational driving force to the pair of gears, and a side wall that houses the pair of gears inside, An opening for visually recognizing the outer periphery from the outside of the side wall was provided in the side wall.

  A tape feeder according to a second aspect is the tape feeder according to the first aspect, wherein the opening is provided at a position away from a meshing position of the pair of gears in a collecting direction of the top tape.

  A tape feeder according to a third aspect is the tape feeder according to the first or second aspect, wherein a transparent member that covers the opening from the inside of the side wall is provided.

  By allowing the outer periphery of the pair of gears to be visually recognized from the outside of the tape feeder through the opening provided in the side wall, it is possible to easily confirm the occurrence of collection failure due to the top tape being wound around one of the pair of gears. .

  Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a side view showing a mounting apparatus equipped with a tape feeder according to an embodiment of the present invention, and FIG. 2 is an enlarged view of a main part of the tape feeder according to the embodiment of the present invention.

  The mounting apparatus includes a substrate transfer device 2 that performs a series of operations for carrying the substrate 1 into the device, fixing it at a predetermined position, and carrying it out of the device. Further, a transfer head 4 and a linear motion device 5 for transferring the electronic components supplied from the tape feeder 3 to the substrate 1 are provided. A nozzle 6 is attached to the transfer head 4, and this nozzle 6 serves to suck and take out electronic components from the tape feeder 3. Between the tape feeder 3 and the substrate transport device 2, an electronic component adsorbed by the nozzle 6 is imaged from below or a camera 7 is provided.

  The tape feeder 3 is supported by a carrier 9 at a height at which a front portion thereof is placed on a table 8 that supports the substrate transport device 2 and the camera 7. A caster 10 is attached to the carrier 9, and the tape feeder 3 can be freely moved by operating the handle 11. The carrier 9 is provided with a reel holder 14 that rotatably holds a reel 13 on which a carrier tape 12 is wound and stored. The carrier tape 12 drawn from the reel 13 held by the reel holder 14 is provided in the tape feeder 3. It is designed to be pulled into the interior from the rear. The carrier tape 12 drawn from the rear is fed forward by a sprocket 15 built in the tape feeder 3. A plurality of electronic components are accommodated in the carrier tape 12 at equal intervals, and the upper surface thereof is covered with the top tape 16.

  The top tape 16 is folded back in the direction opposite to the feeding direction of the carrier tape 12 before the electronic component take-out position 17 (upstream with respect to the feeding direction of the carrier tape 12), and the gears 18 and 19 built in the tape feeder 3 are placed. Is fed in the direction opposite to the feeding direction of the carrier tape 12. The top tape 16 is peeled from the upper surface of the carrier tape 12 by the same length as the feed length of the carrier tape 12 and is collected in the collection chamber 20 behind the gears 18 and 19 (upstream with respect to the feed direction of the carrier tape 12). The The rear end of the tape feeder 3 is provided with a door 21 that can open and close an opening for taking out the top tape 16 to the outside.

  The electronic components housed in the carrier tape 12 are transported to the take-out position 17 in a state of being opened upward when the top tape 16 is peeled off. The nozzle 6 is positioned at the take-out position 17 by the linear motion device 5 and descends at this position to suck the electronic component, and rises while sucking to take out the electronic component. After that, it passes over the camera 7 and is positioned above the substrate 1, and descends again to mount the electronic component on the substrate 1. If there is an abnormality in the posture (angle in the horizontal plane) of the electronic component imaged by the camera 7, the nozzle 6 is rotated and corrected, and then mounted on the substrate 1.

FIG. 2 is an enlarged view of a main part of the tape feeder according to the embodiment of the present invention. A pair of gears 18 and 19 that mesh with each other are disposed inside the side wall 22 that forms the casing of the tape feeder 3. The pair of gears 18 and 19 sandwich the top tape 16 peeled off from the upper surface of the carrier tape 12 from both sides. The gear 19 is on the drive side and receives a rotational driving force from the drive gear 23 and rotates in the direction of arrow a. The driven gear 18 rotates in the direction b in conjunction with the rotation of the gear 19. As a result, the top tape 16 sandwiched between the pair of gears 18 and 19 is drawn into the tape feeder 3 and collected in the top tape collection chamber.

  Since the side wall 22 is a basic member constituting the casing of the tape feeder 3, it is formed of a metal material such as stainless steel having both thinness and strength. The side wall 22 is provided with openings 24, 25, 26 at three locations, and through the openings 24, 25, 26, a part of the outer periphery of the gears 18, 19 can be visually recognized from the outside of the tape feeder 3. Yes. These openings 24, 25 and 26 are covered with a transparent member 27 such as an acrylic plate from the inside of the side wall 22, so that the top tape 16 collected in the collection chamber 20 does not overflow to the outside of the tape feeder 3. It has become.

  The openings 24 and 25 are provided at locations where the outer peripheries of the gears 18 and 19 can be visually recognized at positions away from the meshing locations 28 of the pair of gears 18 and 19 in the collecting direction of the top tape 16. When a so-called recovery failure occurs such that the top tape 16 is entangled with the teeth of the gears 18 and 19 and is wound around the gears 18 and 19 as they are, the situation is indicated from the outside of the tape feeder 3 by the opening 24. , 25 can be easily confirmed.

  The other opening 26 is provided at a location where the meshing location 29 between the driving gear 19 and the driving gear 23 can be seen. The opening 26 is used to confirm whether or not the top tape 16 is entangled with the drive gear 23 when it is confirmed through the opening 24 that the top tape 16 is wound around the gear 19.

  If the top tape 16 is wound around one of the gears 18 and 19, it can be restored to its original state by a relatively simple operation (for example, pulling the top tape 16 from the collection chamber and peeling it off the gear). However, if it is entangled with the drive gear 23, it is related to the mechanical system, so that the work for restoring the original state is relatively difficult. Therefore, when the tape feeder 3 is urgently stopped during operation, it can be determined whether or not the cause of the stop is a poor recovery of the top tape 16 by visually checking the inside through the openings 24 and 25. By visually recognizing from the opening 26, it can be confirmed whether or not the influence of the winding of the top tape 16 reaches the mechanical system.

  As described above, regarding the emergency stop of the tape feeder 3, the operator at the production site visually recognizes the inside from the openings 24, 25 and 26, and the recovery of the carrier tape 16 and the malfunction of the gear mechanism are involved as the cause of the stop. It is possible to instantly determine whether or not there is. Since it is not necessary to disassemble the tape feeder 3 in investigating the cause, it is possible to deal with an emergency stop immediately and accurately.

  Since the openings 24, 25, and 26 are provided for the purpose of visually recognizing the inside from the outside of the tape feeder 3, the shape and area thereof are not limited as long as this purpose is achieved. For example, it may be curved along the outer periphery of the gears 18 and 19, or may be configured as an opening group in which a plurality of relatively small holes (openings) are provided at predetermined locations. In the case of the opening group, the top tape 16 does not overflow from the individual openings. In this case, the transparent member 27 may be omitted.

  The present invention is useful in the field of electronic component mounting that requires a stable supply of electronic components using a tape feeder.

The side view which shows the mounting apparatus with which the tape feeder of embodiment of this invention was mounted | worn The principal part enlarged view of the tape feeder of embodiment of this invention

Explanation of symbols

3 Tape Feeder 12 Carrier Tape 16 Top Tape 18, 19 Pair of Gears 23 Drive Gears 24, 25, 26 Opening 27 Transparent Member 28 Interlocking Location

Claims (3)

A tape feeder that sequentially moves a plurality of electronic components stored in the carrier tape to a take-out position by performing a feeding operation of the carrier tape,
A pair of gears for sandwiching the top tape peeled off from the carrier tape from both sides, a top tape collecting means for collecting the top tape by applying a rotational driving force to the pair of gears, and a side wall for accommodating the pair of gears inside With
The tape feeder which provided the opening for visually recognizing the outer periphery of said pair of gearwheel from the outer side of a side wall.   2. The tape feeder according to claim 1, wherein the opening is provided at a location away from a meshing location of the pair of gears in a collecting direction of the top tape.   The tape feeder according to claim 1, wherein a transparent member that covers the opening from the inside of the side wall is provided.

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