JP6571771B2 - Tape feeder - Google Patents

Description

  The present invention relates to a tape feeder that is attached to a component mounting machine and supplies the component to a component mounting operation by a mounting head.

  In the tape feeder set in the component mounting machine, the component tape is unwound from the tape reel, and the top tape is peeled off halfway to expose the electronic components in the carrier tape. The electronic component is exposed at the component supply position in the component mounting machine, where it is taken out by the suction nozzle of the mounting head, and carried to the circuit board for mounting. The component tape is formed by attaching a top tape to a carrier tape holding an electronic component in order to seal the electronic component, and the top tape is peeled off when the electronic component is taken out. Therefore, dust is generated from the component tape by peeling off the top tape. Then, since the dust floats in the air, there are problems such as a component adsorption failure due to clogging of the suction nozzle and an image processing error of electronic components caused by the adsorbed dust being reflected.

JP 2010-109109 A

  There have been various proposals for the problem of dust, and the present applicant has also proposed a tape feeder provided with a dust collecting means disclosed in Patent Document 1, for example. This tape feeder can efficiently collect dust generated when the top tape is peeled from the component tape. Specifically, a suction port is formed in the vicinity of the peeling position of the top tape, and outside air in which dust floats is sucked from there. However, it is considered that there is room for further improvement in such a conventional tape feeder, and an object of the present invention is to provide a tape feeder in which the dust collecting means is improved.

The tape feeder according to one aspect of the present invention is a component tape in which a top tape is bonded to a carrier tape that holds a component, and a continuous tape tape is formed on the component tape. The component tape is unwound from the tape reel by the rotation of the sprocket with the teeth hooked in the feed hole, and the bottom of the component tape that supports the unwound component tape from below, A suction opening is formed at a predetermined position through which the feed hole passes, and a suction nozzle is connected to the bottom plate portion from below corresponding to the suction opening , and the feed hole passes over the suction opening. As a suction port, dust is sucked.

  According to the present invention, since the suction nozzle is provided so that the feed hole formed in the component tape serves as the suction port, the dust floating in the air is sucked through the suction nozzle, so that the dust floating in the air is Can be recovered through. In particular, in the present invention, since the feeding hole of the component tape is used as a suction port, dust can be collected by a tape feeder having a configuration in which the width dimension is suppressed.

It is the side view which showed simply the structure of the tape feeder of 1st Embodiment. It is the top view which showed the front part of the tape feeder of 1st Embodiment. It is the side view which expanded and showed a part of internal structure of the front part of the tape feeder of 1st Embodiment. It is the side view which showed simply the structure of the tape feeder of 2nd Embodiment. It is the top view which showed the front part of the tape feeder of 2nd Embodiment. It is the figure which showed simply the AA arrow cross section shown in FIG.

  Next, an embodiment of a tape feeder according to the present invention will be described below with reference to the drawings. The tape feeder of this embodiment is attached to a component mounting machine that performs board manufacture. That is, a plurality of tape feeders for supplying parts are set on the device table. In such a component mounting machine, a circuit board is transported by a substrate transport device, an electronic component is taken out from a tape feeder by a suction nozzle of a mounting head, and is transported to the circuit board for mounting.

  FIG. 1 is a side view schematically showing the structure of the tape feeder of the first embodiment. A tape reel 5 is detachably attached to the tape feeder 1, and a drive unit for unwinding the component tape 10 wound around the tape reel 5 to the inside of the component mounting machine is provided. That is, the left side of the tape feeder 1 in the drawing is the mounting side to the component mounting machine, and the drive unit is configured on the mounting side. Therefore, in the tape feeder 1 shown in FIG. 1, the component tape 10 is unwound from the right side (rear part) to the left side (front part) of the drawing as indicated by an arrow.

  The tape feeder 1 has a box-shaped front part with a built-in drive unit, and is composed of a thin feeder body 20 having a small width dimension 20W as shown in FIG. Here, FIG. 2 is a plan view showing the front portion of the tape feeder 1. A slot is formed on the device table of the component mounting machine so that a plurality of such thin tape feeders 1 can be arranged side by side in the width direction. The tape feeder 1 has a slide convex portion 21 that can be inserted into the slot on the lower surface of the feeder body 20 and is formed with a predetermined length in the longitudinal direction (left-right direction in FIG. 1).

  As shown in FIG. 1, a communication connector 22, positioning pins 23, and a suction connector 24 are formed at the tip of the feeder body 20. The communication connector 22 is used for receiving power supply to the component mounting machine and transmitting / receiving control signals, and is connected to the communication connector on the device table side. The positioning pins 23 are formed at two locations above and below so as to sandwich the communication connector 22 and the suction connector 24, and position the tape feeder 1 with respect to the device table. The suction connector 24 is for connecting to an air suction device provided on the component mounting machine side, for example, an ejector or a blower with a filter, via the device table.

  The tape feeder 1 has a tape passage formed in the upper surface portion of the feeder body 20 so that the component tape 10 wound around the tape reel 5 is sent to the component supply position. The tape passage is constituted by a groove-shaped tape guide member 30 attached to the upper surface portion of the feeder main body 20. The tape guide member 30 extends to the front side of the tape feeder 1, and a sprocket 41 is rotatably attached to the feeder body 20 at the front part. The sprocket 41 pitch-feeds the component tape 10 arranged in the tape guide member 30 forward, and is transmitted through gears 42, 43 and the like that engage with the rotation of the drive motor. Yes.

  As shown in FIG. 2, the tape guide member 30 is formed with a width dimension corresponding to the tape width, and the feeder main body 20 is also formed with the same width dimension 20 W as the tape guide member 30. The component tape 10 sent out along the longitudinal direction of the upper part of the feeder main body 20 is obtained by bonding a lower carrier tape 11 and an upper top tape 12 together. The carrier tape 11 has concave component housing portions 13 formed continuously at equal intervals along the longitudinal direction, and one electronic component 18 is placed therein. And the top tape 12 is bonded together from the top with respect to the carrier tape 11, and the electronic component 18 in the component accommodating part 13 is sealed.

  The carrier tape 11 is provided with a feed hole row in which a number of feed holes 15 are formed at a constant pitch along the longitudinal direction in addition to the component row in which the component housing portions 13 are continuous in the longitudinal direction. The teeth of the rotating sprocket 41 enter the feed holes 15 in the feed hole row in order. Therefore, the component tape 10 is pitch-fed along the tape guide member 30 to the front (left side in FIG. 2) along the tape guide member 30 when the teeth of the sprocket 41 rotating with respect to the feed hole 15 are hooked. Become.

  Further, the tape feeder 1 is provided with a configuration for peeling the top tape 12 from the carrier tape 11. The tape guide member 30 is formed with a cover portion 31 having the shape shown in FIG. 2 along the upper surface of the component tape 10. The cover part 31 is formed with a notch 32 so that the upper part of one component housing part 13 and the feed hole 15 located adjacent thereto opens. An end portion 33 of the cover portion 31 formed by the cutout portion 32 becomes a folded portion, and the top tape 12 is peeled off from the carrier tape 11 by reversing the upper side. Accordingly, the top tape 12 is peeled off immediately before the notch 32 and the sealed electronic component 18 appears on the table, and the position of the notch 32 becomes the component supply unit 35.

  By the way, the peeled top tape 12 is sent to the rear side opposite to the feeding direction of the carrier tape 11 and collected. Therefore, as shown in FIG. 1, a tapered guide roller 45 and a pair of drawer rollers 46 and 47 are disposed at the rear of the feeder body 20. The top tape 12 reversed to the rear is sandwiched between the drawing rollers 46 and 47 through the guide roller 45. Therefore, the top tape 12 is pulled backward by the rotation of the drawing rollers 46 and 47 with respect to the carrier tape 11 that moves forward, and is peeled off at a position in front of the component supply unit 35.

  In the component supply unit 35, the electronic component 18 in the component tape 10 that has been sealed is exposed. Therefore, the electronic component 18 can be sucked and held by the suction nozzle 7 in the component supply unit 35, and the electronic component 18 is carried and mounted on the circuit board. As described above, the separation of the top tape 12 and the suction holding of the electronic component 18 by the suction nozzle 7 are performed by the same component supply unit 35. In other words, since the electronic component 18 is sucked by the suction nozzle 7 when the dust due to the separation of the top tape 12 is floating, the dust is easily sucked by the suction nozzle 7. Therefore, in the present embodiment, a configuration for collecting the dust is provided in the component supply unit 35 in order to eliminate the problem caused by the suction of the dust.

  The tape feeder 1 is configured to suck air in the vicinity of the peeling position of the top tape 12 as in the conventional example. However, in the present embodiment, a configuration is adopted in which the suction hole for dust collection is not formed on the upper surface of the tape feeder 1, but the feed hole 211 formed in the component tape 10 is used as the suction port. Since the suction port as in the conventional example must be formed at a position that does not overlap with the component tape, the width of the tape feeder increases by the amount corresponding to the suction port. In this regard, in the present embodiment, the value of the width dimension 20W of the feeder body 20 is suppressed by not providing the dust collection suction port.

  Specifically, the notch 32 forming the component supply unit 35 is formed to extend to the position of the feed hole 15 so that dust is sucked from the feeder body 20 through the feed hole 15 passing through the component supply unit 35. It is configured. That is, a suction nozzle 25 connected to the suction connector 24 is piped in the feeder main body 20, and suction is performed from an air suction device provided on the component mounting machine side. Here, FIG. 3 is a partially enlarged side view of the front internal structure of the tape feeder 1. As illustrated, the tape guide member 30 has a suction nozzle 25 connected to a bottom plate portion 36 that supports the component tape 10 from below.

  An opening 37 is formed in the bottom plate portion 36 according to the passage position of the feed hole 15 in the component supply unit 35. The opening 37 is an oval through-hole in which the plurality of feed holes 15 overlap at the same time so that the total area of the suction port becomes as large as possible. The attachment member 26 of the suction nozzle 25 is fixed to the bottom plate portion 36 in accordance with the position of the opening 37. A gap 261 for taking in air is formed between the attachment member 26 and the bottom plate portion 36. This is because the component tape 10 that closes the opening 37 is brought into close contact with the bottom plate portion 36 due to the downward suction force, and does not hinder the delivery by the sprocket 41. On the other hand, since the state of the component tape 10 is stabilized by a certain amount of suction force, the posture of the electronic component 18 when the component nozzle 35 is sucked and held by the suction nozzle 7 is stabilized.

  Further, in the present embodiment, another configuration is adopted in order to prevent a problem in the feeding of the component tape 10 by the suction operation performed through the component tape 10. In other words, the sprocket 41 is fed forward from the position of the component supply unit 35, and the component tape 10 (carrier tape 11) is pulled from the front side against the suction force acting behind. Yes. However, in such a configuration, since the teeth of the sprocket 41 are hooked on the feed hole 15 in the vicinity of the tip of the feeder main body 20, the assembly space is narrowed. Further, since the attachment member 26 of the suction nozzle 25 and the sprocket 41 are disposed along the feed hole row of the feed holes 15 and are close to each other, they must be prevented from interfering with each other. Therefore, in this embodiment, a sprocket 41 of a small diameter gear is used.

  Subsequently, the tape feeder 1 as described above is attached to the component mounting machine, the electronic component 18 is taken out by drive control of the mounting head (suction nozzle 7), and the electronic component 18 is mounted on the circuit board. Done. At that time, in the tape feeder 1, the component tape 10 is pitch-fed by the interval between the components by the rotation of the sprocket 41, the rotation is given to the drawing rollers 46 and 47, and the top tape 12 is peeled off from the carrier tape 11. In this way, the electronic component 18 in the component tape 10 is exposed by the component supply unit 35, and the electronic component 18 is sucked and held by the suction nozzle 7, and is carried to the circuit board as it is and mounted.

  The tape feeder 1 is attached to the device table of the component placement machine. At that time, the tape feeder 1 is positioned by the positioning pins 23, and the power supply and the transmission / reception of control signals are performed with the component placement machine by the connection of the communication connector 22. Is done. Furthermore, in the present embodiment, dust collection at the component supply unit 35 is performed by the suction operation of the air suction device of the component mounting machine by the connection of the suction connector 24. That is, air suction performed through the suction nozzle 25 is performed using the feed hole 15 located on the opening 37 of the bottom plate portion 36 as a suction port.

  Since the suction port is in the vicinity of the peeling position of the top tape 12, the dust generated by the peeling is sucked together with the air through the feed hole 15 to the suction nozzle 25. Therefore, the dust floating in the air is collected into the suction nozzle 25 before being sucked into the suction nozzle 7, and problems such as clogging occurring in the suction nozzle 7 can be prevented. And in this embodiment, since the feed hole 15 of the component tape 10 is made into the suction inlet, the said effect can be achieved, without expanding the width dimension 20W of the feeder main body 20. FIG.

  In the present embodiment, the component tape 10 is also pulled downward by the suction operation through the feed hole 15. For this reason, an opening 37 is formed in the bottom plate portion 36 so as to support the component tape 10 from below, and the component tape 10 is smoothly fed out. Further, if the pulled component tape 10 is in close contact with the bottom plate portion 36, the feeding operation by the sprocket 41 is hindered by the sliding resistance. Therefore, a gap 261 is formed in the mounting member 26 so that air can be taken in even below the bottom plate portion 36 so that the suction force for pulling the component tape 10 does not increase so that the component tape 10 can be fed smoothly. Yes.

  In the present embodiment, since the component tape 10 is pulled by the sprocket 41 on the front side of the component supply unit 35, even if sliding resistance is generated on the component tape 10 due to suction, the component tape 10 can be fed smoothly. It has become. Furthermore, although the feeding position with respect to the component tape 10 is located in front of the feeder main body 20, the tape feeder 1 can be made the same as the conventional size by using the small-diameter sprocket 41.

  Next, a second embodiment of the tape feeder will be described. As in the first embodiment, the tape feeder according to the present embodiment uses the feed hole 211 formed in the component tape 10 as a suction port, and at the component supply position so that dust can be collected more efficiently. An air flow is created. In addition, about 2nd Embodiment, about the structure similar to the said 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  FIG. 4 is a side view schematically showing the structure of the tape feeder of the second embodiment. In addition to the communication connector 22, the positioning pin 23, and the suction connector 24, the tape feeder 2 is further formed with an outlet connector 27. On the other hand, an air outlet is formed in the tape guide member 50, and the air outlet connector 27 and the air outlet are connected by the air blowing nozzle 28. The blowout connector 27 is connected to an air pump or the like provided on the component mounting machine side via a device table.

  Here, FIG. 5 is a plan view showing a front portion of the tape feeder, and FIG. 6 is a diagram simply showing a cross section taken along the line AA shown in FIG. In the present embodiment, the tape guide member 50 is also formed with a cover 51 having a shape illustrated along the upper surface of the component tape 10, and a notch 52 constituting the component supply unit 55 is formed. Therefore, the top tape 12 is peeled back toward the rear, with the end portion 53 of the cover portion 51 formed by the cutout portion 52 being the folding position. The attachment member 26 of the suction nozzle 25 is fixed to the component supply unit 55 in accordance with the opening 57 of the bottom plate part 56.

  Further, in the present embodiment, a blowing port 58 is formed on the opposite side of the opening 57 when viewed in the width direction of the tape guide member 50. The outlet 58 is formed at a position that does not overlap the component tape 10. Therefore, the tape feeder 2 of the present embodiment is formed to have a larger width dimension than the tape feeder 1 of the first embodiment. As shown in FIG. 6, the air blowing nozzle 28 is connected to the outlet 58, and the suction nozzle 25 is connected to the opening 57. Accordingly, the air blown out from the blowout port 58 is sucked into the opening 57 through the feed hole 15 on the opposite side. In particular, a guide member is formed to generate an air flow in the component supply unit 55.

  That is, the tape guide member 50 is formed with an air outlet guide 61 and a suction guide 62 above the air outlet 58 and the opening 57. The air blown out from the blowout port 58 flows upward as it is, and dust floating in the vicinity of the component supply unit 35 is scattered. Therefore, the blowout guide 61 and the suction guide 62 create an air flow indicated by arrows, and make it easy for air around the component supply unit 55 to flow into the feed hole 15 and the opening 57. The blowout guide 61 and the suction guide 62 are formed so as to cover the blowout opening 58 and the opening 57, and a guide opening that is open at a position higher than the component tape 10 and facing each other is formed. .

  Therefore, according to the present embodiment, since air can flow from the outlet 58 to the feed hole 15 and the opening 57, dust floating in the component supply unit 55 can be efficiently sucked. Therefore, it is possible to prevent the suction nozzle 7 that sucks and holds the electronic component 18 from sucking dust. Further, since the blowout guide 61 and the suction guide 62 are formed so as to avoid the upper part of the component supply unit 55, the suction and holding of the electronic component 18 by the suction nozzle 7 is not hindered. The air flow from the outlet 58 to the inlet (feed hole 15 and opening 57) is set to a flow rate that does not affect the holding posture of the electronic component 18 in the suction nozzle 7. Alternatively, the air flow may be controlled to be cut off at the timing when the electronic component 18 is raised by the suction nozzle 7.

As mentioned above, although one Embodiment of this invention was described, this invention is not limited to these, A various change is possible in the range which does not deviate from the meaning.
For example, in the above embodiment, the component supply units 35 and 55 are formed in accordance with the folding position (peeling position) of the top tape 12, but the peeling position of the top tape 12 and the position of the component supply units 35 and 55 are formed. May be separated. In such a case, the suction positions for forming the openings 37 and 57 may also be provided in the component supply sections 35 and 55 apart from the position where the top tape 12 is peeled off.
Further, for example, in the embodiment, an oval opening 37 is formed as the suction opening, but it corresponds to a plurality of feed holes 15 positioned at the timing of suction holding of the electronic component 18 by the suction nozzle 7. It may be a circular hole.

DESCRIPTION OF SYMBOLS 1 ... Tape feeder 5 ... Tape reel 7 ... Adsorption nozzle 10 ... Component tape 11 ... Carrier tape 12 ... Top tape 15 ... Feed hole 18 ... Electronic component 20 ... Feeder main body 25 ... Suction nozzle 30 ... Tape guide member 35 ... Component supply part 37 ... opening 41 ... sprocket

Claims (8)

A component tape in which a top tape is bonded to a carrier tape that holds a component, a tape reel around which the component tape is wound is mounted, and a sprocket that hooks teeth into a continuous feed hole formed in the component tape. In the tape feeder in which the component tape is unwound from the tape reel by rotation,
A suction opening is formed at a predetermined position through which the feeding hole of the component tape passes in the bottom plate portion that supports the component tape to be unwound from below, and the bottom plate portion is suctioned from below corresponding to the suction opening. A tape feeder , wherein a nozzle is connected, and dust is sucked by using the feed hole passing above the suction opening as a suction port.   The tape feeder according to claim 1, wherein the suction nozzle is provided in the vicinity of a position where the top tape is peeled off from an upper surface of the carrier tape. 3. The tape feeder according to claim 1, wherein the suction opening is a long hole formed in the bottom plate so that a plurality of the feed holes are simultaneously positioned. Connection position of the suction nozzle, to any one of claims 1 to 3, characterized in that the teeth of the sprocket is located on the tape reel side of the power transmission position to be hooked to the feeding hole of the component tape The tape feeder described. The suction nozzle connected to the bottom plate portion corresponding to the suction opening can be of any claims 1 to 4, characterized in that between the bottom plate portion in which a gap is formed The tape feeder according to crab. The tape feeder according to any one of claims 1 to 5 , wherein the sprocket is a small diameter gear, and rotation is transmitted through a large diameter gear. An air blowing port is formed next to the component tape on the side opposite to the feed hole at the connection position of the suction nozzle, and a blowing nozzle is provided at the blowing port. The tape feeder in any one of Claims 1 thru | or 6 . The blowing position of the blowing port and the suction position where the feeding hole becomes the suction port are in the same position as seen in the feeding direction of the component tape,
A blowing guide and a suction guide for guiding the air flow are formed at the blowing position and the suction position. The tape feeder according to claim 7 , wherein the tape feeder is formed so as to face each other.

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