JP6653567B2 - Tape feeder - Google Patents

Description

  The present invention relates to a tape feeder including a tape reel and a reel holding unit that holds the tape reel.

  The tape feeder supplies an electronic component from a taped component in which the electronic component is housed, and includes a tape reel that holds the taped component in a wound state and a reel holding unit that holds the tape reel. ing. Then, the taped component is pulled out from the tape reel, and at the supply position, the electronic component is supplied from the taped component. At this time, the tape reel rotates inside the reel holding unit. For this reason, the reel holding unit holds the tape reel in a rotatable state. In the tape feeder, tape reels are replaced in order to cope with replenishment of electronic components and the like. For this reason, the reel holding unit has a structure in which a tape reel can be attached and detached. The following patent document describes an example of such a tape feeder.

JP 2012-156221 A

  In the tape feeder described in the above-mentioned patent document, a plurality of rotating rollers are provided so as to be in contact with the outer peripheral portion of the tape feeder in order to ensure rotation of the tape reel. The tape reel is held on the reel holding unit by being placed on the plurality of rotating rollers. For this reason, in the tape feeder described in the above-mentioned patent document, the tape reel can be easily replaced. However, since the tape reel is merely placed on the plurality of rotating rollers, when the tape-forming component is pulled out at a high speed, the tape reel may be lifted, and the electronic components may not be supplied appropriately.

  On the other hand, there is a tape feeder that holds a tape reel with a pin inserted through a center hole of the tape reel. With such a tape feeder, it is possible to reliably prevent the tape feeder from lifting even when the taped component is pulled out at a high speed. However, when exchanging the tape reel, it is necessary to attach / detach the pin to / from the center hole of the tape reel, and exchanging the tape reel is very troublesome.

  The center hole of the tape reel is open on both sides of the tape reel. However, there is a tape feeder that holds the tape reel by holding a pin on one of the openings on both sides. With such a tape feeder, the tape reel held in the reel holding unit is pulled upward, the tape reel is taken out from the reel holding unit, and the tape reel is held in the reel holding unit by pushing the tape reel into the reel holding unit. It becomes possible to load the parts. Therefore, it is possible to relatively easily replace the tape reel. Further, since the pins are hung on one of the openings on both sides of the center hole of the tape reel, it is possible to prevent the tape reel from lifting to some extent. However, in a state where the pin is hooked on only one of the openings on both sides of the center hole of the tape reel, the tape reel may rattle, and the lifting of the tape reel may not be properly prevented. The present invention has been made in view of such circumstances, and an object of the present invention is to appropriately achieve both easy replacement of a tape reel and prevention of lifting of the tape reel.

  In order to solve the above-mentioned problem, a tape feeder according to claim 1 of the present application rotatably holds a tape reel around which a tape-formed component in which an electronic component is accommodated is wound, and supplies the electronic component at a supply position. A tape feeder to be supplied to a mounting device, comprising: a pair of side wall plates arranged to face each other in a predetermined size and spaced apart from each other; And a pair of reel support portions for holding the tape reel in the shaft hole.

  Further, in the tape feeder according to the second aspect, in the tape feeder according to the first aspect, each of the pair of reel support portions has a shape whose diameter gradually increases from the front end toward the base end. Features.

  In the tape feeder according to the third aspect, in the tape feeder according to the first or second aspect, each of the pair of reel support portions is rotatable with respect to each of the pair of side wall plates. It is characterized by being arranged in.

  Further, in the tape feeder according to claim 4, in the tape feeder according to any one of claims 1 to 3, the pair of side wall plates has a pair of protrusions, and The protrusion amount of the pair of protrusions is smaller than the protrusion amount of the pair of reel support portions.

  In the tape feeder according to claim 1 of the present application, the tape reel is held in the shaft hole by the pair of reel support portions. This makes it possible to suppress rattle of the tape reel and appropriately prevent the tape reel from lifting.

  Further, in the tape feeder according to claim 2 of the present application, the diameter of the reel support portion gradually increases from the distal end portion to the proximal end portion. For this reason, the side surface of the reel support portion has an inclined surface, and when the tape reel is attached / detached, the tape reel is attached / detached while being in sliding contact with the inclined surface. This makes it possible to replace the tape reel without applying a large force.

  In the tape feeder according to claim 3 of the present application, the reel support portion is rotatable with respect to the side wall plate. Thus, it is possible to ensure smooth rotation of the tape reel, and it is possible to appropriately prevent the tape reel from being lifted even when the tape-forming component is pulled out at a high speed.

  In the tape feeder according to claim 4 of the present application, the protrusion is provided on the side wall plate. Further, the protrusion amount of the protrusion is smaller than the protrusion amount of the reel support portion. When the reel support is rotatable, a clearance is provided between the reel support and the side wall plate to ensure smooth rotation of the reel support. The protrusion prevents the tape reel from being caught in the clearance, and allows the tape reel to be properly replaced.

It is a perspective view which shows an electronic component mounting apparatus. It is a perspective view which shows a tape-ized component. It is a perspective view showing a tape feeder. It is a perspective view showing a tape reel and a reel holding part. It is sectional drawing which shows a tape reel and a reel holding part. It is an expanded sectional view showing the end face by the side of the base end of a support pin. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as embodiments for carrying out the present invention.

<Configuration of electronic component mounting device>
FIG. 1 shows an electronic component mounting apparatus 10. The electronic component mounting apparatus 10 includes two electronic component mounting machines (hereinafter, may be abbreviated as “mounting machines”) 14. Each mounting machine 14 mainly includes a mounting machine main body 20, a transport device 22, a moving device 24, a mounting head 26, and a supply device 28.

  The mounting machine main body 20 includes a frame portion 32 and a beam portion 34 mounted on the frame portion 32. The transfer device 22 includes two conveyor devices 40 and 42. Each of the two conveyor devices 40 and 42 conveys a circuit board supported by each of the conveyor devices 40 and 42 in the X-axis direction.

  The moving device 24 is an XY robot type moving device, and moves the slider 50 to an arbitrary position. The mounting head 26 is moved to an arbitrary position on the frame 32 by attaching the mounting head 26 to the slider 50. The mounting head 26 has a suction nozzle 60 provided on the lower end surface. The suction nozzle 60 sucks and holds the electronic component by a negative pressure, and separates the held electronic component by a positive pressure.

  The supply device 28 is a feeder-type supply device, and is provided at a front end of the frame portion 32. The supply device 28 has a tape feeder 70. The tape feeder 70 accommodates the taped components in a wound state. Then, the tape feeder 70 sends out the taped component by a sending device (not shown). Thus, the feeder-type supply device 28 supplies the electronic component at the supply position by sending out the taped component.

  More specifically, the taped component 72 includes a carrier tape 74, an electronic component 76, and a top cover tape 78, as shown in FIG. The carrier tape 74 has a large number of recesses 80 and feed holes 82 formed at equal pitches, and the recesses 80 house the electronic components 76. The housing recess 80 in which the electronic component 76 is housed is covered with the top cover tape 78.

  As shown in FIG. 3, the tape feeder 70 includes a tape reel 84, a reel holding unit 86, and a feeder body 88. The tape reel 84 includes a pair of flange portions 90 and a shaft portion 92, as shown in FIG. The pair of flange portions 90 have a disk shape, and are connected to each other by a shaft portion 92 at a central portion while facing each other. The taped component 72 is wound around the outer periphery of the shaft portion 92. The shaft portion 92 is formed with a center hole 98 that penetrates the center in the axial direction.

  The reel holding section 86 holds the tape reel 84, and includes a pair of side wall plates 100, a plurality of connecting members 102, and a pair of support pins (see FIG. 5) 104. . The pair of side wall plates 100 are generally in a half-moon shape, and are opposed to each other at a predetermined distance from each other. The pair of side wall plates 100 are connected by a plurality of connecting members 102 at each edge. The dimension between the pair of side wall plates 100 is longer than the width of the tape reel 84. Thus, the tape reel 84 can be inserted between the pair of side wall plates 100 from above.

  As shown in FIG. 5, a pair of through holes 110 are formed in the pair of side wall plates 100 so as to face the center hole 98 of the tape reel 84 inserted between the pair of side wall plates 100. Are formed. A generally cylindrical support shaft 112 is fitted into the pair of through holes 110. The pair of support shafts 112 protrude between the pair of side wall plates 100, and the end faces on the protruding side of the pair of support shafts 112 face each other with a predetermined distance. The outer diameter of the support shaft 112 is smaller than the inner diameter of the center hole 98 of the tape reel 84. The dimension between the end faces of the pair of support shafts 112 on the protruding side, that is, the dimension between the end faces on the tip end side, is slightly shorter than the width of the tape reel 84.

  The support pins 104 are fitted on the outer peripheral surfaces of the pair of support shafts 112 via radial bearings 114. The support pin 104 has a dome shape. The dome shape means a hemispherical shape, a spire shape, an umbrella shape, or a convex shape close to those shapes. That is, the dome shape is a shape in which the diameter gradually increases from the distal end toward the proximal end. The cross-sectional shape in the axial direction of the support pin 104 according to the embodiment of the present invention is generally trapezoidal. For this reason, the outer diameter of the end face 116 on the base end side of the support pin 104 is larger than the outer diameter of the end face 118 on the distal end side, and the side surface of the support pin 104 is a tapered surface. The outer diameter of the end surface 116 on the base end side is approximately twice the outer diameter of the end surface 118 on the distal end side. The support pins 104 are arranged so that the end face 116 on the base end side faces the side wall plate 100. Note that a slight clearance is provided between the end face 116 on the base end side and the side wall plate 100. Thus, smooth rotation of the support pin 104 is ensured.

  In addition, the end face of the support shaft 112 on the tip end side is flush with the end face 118 of the support pin 104 on the tip end side. That is, the end face of the support shaft 112 on the tip end side and the end face 118 of the support pin 104 on the tip end side are located on the same plane. For this reason, the dimension between the end surfaces 118 on the tip end side of the pair of support pins 104 is slightly shorter than the width of the tape reel 84. Further, the outer diameter of the end surface 118 on the tip end side of the support pin 104 is slightly smaller than the inner diameter of the center hole 98 of the tape reel 84. For this reason, the edge of the center hole 98 is in contact with the side surface of the support pin 104 in a state where the end surface 118 on the tip end side of the support pin 104 slightly enters the inside of the center hole 98 of the tape reel 84. . As a result, the tape reel 84 is held in the center hole 98 by the pair of support pins 104.

  In this manner, the tape reel 84 is held by the reel holding unit 86 by being pinched by the pair of support pins 104. Then, the tape-formed component 72 is pulled out from the tape reel 84 held by the reel holding unit 86, and the drawn-out tape-formed component 72 is extended on the upper surface of the feeder main body 88. The feeder main body 88 has a built-in sprocket (not shown) that engages with the feed hole 82 of the taped component 72, and the sprocket is rotated by the sending device. As a result, the taped component 72 is sent out on the upper surface of the feeder main body 88 in a direction away from the tape reel 84. Then, the top cover tape 78 is peeled off from the carrier tape 74 by a peeling device (not shown), so that the housing recess 80 in which the electronic component 76 is housed is released. Thereby, the tape feeder 70 supplies the electronic component at the supply position.

  As described above, in the tape feeder 70, the taped component 72 is sent out from the tape reel 84, and the electronic component 76 is exposed from the accommodation recess 80 of the taped component 72 on the upper surface of the feeder main body 88, so that the taped component 72 is at that position An electronic component 76 is provided. At this time, the tape reel 84 rotates inside the reel holding portion 86, but the feeding speed of the taped component 72 becomes high, and when the tape reel 84 does not rotate properly, the tape reel 84 is lifted upward. In addition, there is a possibility that electronic components cannot be supplied appropriately. However, in the tape feeder 70, the tape reel 84 is sandwiched from both sides by a pair of support pins 104, and the pair of support pins 104 are rotatable. For this reason, when the taped component 72 is sent out from the tape reel 84, the tape reel 84 rotates smoothly inside the reel holding unit 86. This makes it possible to prevent the tape reel 84 from being lifted even when the tape-formed component 72 is sent out at a high speed, and to appropriately supply electronic components.

  In the reel holding portion 86 of the tape feeder 70, the inclination angle of the side surface of the support pin 104, that is, the inclination angle of the tapered surface is not constant, and as shown in FIG. The inclination angle gradually decreases toward the end face 118. For this reason, the inclination angle of the side surface of the support pin 104 becomes larger as it is closer to the end surface 116 on the base end side, and the inclination angle of the side surface of the support pin 104 closest to the end surface 116 on the base end side is equal to the support angle. The maximum inclination angle of the side surface of the pin 104 is obtained. Note that the maximum inclination angle of the side surface of the support pin 104 is 30 degrees, which is a gentle inclination surface.

  An annular projection 120 is formed on each of the pair of side wall plates 100 so as to surround the support pin 104. The protrusion 120 protrudes between the pair of side wall plates 100, and the amount of protrusion is smaller than the amount corresponding to the height dimension of the support pin 104, and the end face 116 on the base end side of the support pin 104. It is larger than the amount corresponding to the clearance between the side wall 100 and the side wall plate 100.

<Mounting work by mounting machine>
With the above configuration, the mounting machine 14 can perform the mounting operation on the circuit board held by the transport device 22 by the mounting head 26. Specifically, the circuit board is transported to a work position and fixedly held at that position by a command from a control device (not shown) of the mounting machine 14. In addition, the tape feeder 70 sends out the taped component and supplies the electronic component at the supply position according to a command from the control device. Then, the mounting head 26 moves above the electronic component supply position, and the suction nozzle 60 holds the electronic component by suction. Subsequently, the mounting head 26 moves above the circuit board, and mounts the held electronic component on the circuit board.

<Replacing tape reels>
As described above, the mounting machine 14 is configured so that the electronic components supplied by the tape feeder 70 are suction-held by the suction nozzles 60 of the mounting head 26 and the suction-held electronic components are mounted on the circuit board. Have been. In the mounting machine 14 configured as described above, the tape reel 84 on which the taped component 72 is wound can be replaced in order to cope with replenishment of the electronic component and the like. That is, it is possible to take out the tape reel 84 from the reel holding unit 86 of the tape feeder 70 and load a new tape reel 84 into the reel holding unit 86.

  Specifically, as described above, the tape reel 84 is held by the reel holding unit 86 by being pinched by the pair of support pins 104. As shown in FIG. 5, the support pin 104 clamps the tape reel 84 in a state where the end surface 118 on the distal end side slightly enters the center hole 98 of the tape reel 84. The side surface of the support pin 104 that is in contact with the edge of the center hole 98 is a gentle tapered surface. Therefore, by lifting the tape reel 84 held by the reel holding unit 86 upward, the tape reel 84 can be easily taken out from the reel holding unit 86. When the tape reel 84 is taken out from the reel holding portion 86, the pair of side wall plates 100 is slightly elastically deformed in a direction in which the side wall plates 100 are separated from each other.

  When the tape reel 84 is taken out from the reel holder 86, a new tape reel 84 is inserted into the reel holder 86. At this time, the lower end of the tape reel 84 inserted into the reel holding portion 86 comes into contact with the pair of support pins 104, but since the side surface of the support pin 104 is a gently tapered surface, the tape reel 84 It easily enters between the pair of support pins 104. At this time, the pair of side wall plates 100 is slightly elastically deformed in the direction in which they are separated from each other. Then, when the tape reel 84 is further inserted into the reel holding portion 86, the end surface 118 on the tip end side of the support pin 104 enters the center hole 98 of the tape reel 84. As a result, a new tape reel 84 is held between the pair of support pins 104 and is held by the reel holding unit 86.

  Thus, in the tape feeder 70, it is possible to easily exchange the tape reel 84. Further, as described above, the protrusion 120 is formed on the side wall plate 100 of the reel holding portion 86, and the tape reel 84 can be appropriately replaced by the protrusion 120. Specifically, in the tape feeder 70, a clearance is provided between the end face 116 on the base end side of the support pin 104 and the side wall plate 100 to ensure smooth rotation of the tape reel 84. Therefore, when the tape reel 84 is inserted into the reel holding portion 86, the flange portion 90 of the tape reel 84 causes the clearance between the end face 116 on the base end side of the support pin 104 and the side wall plate 100. There is a possibility that the tape reel 84 may not be properly inserted into the reel holding portion 86 due to being pinched. Therefore, a protrusion 120 is formed on the side wall plate 100 so as to surround the support pin 104, and the protrusion of the protrusion 120 is larger than the amount corresponding to the dimension of the clearance. Therefore, when the tape reel 84 is inserted into the reel holding portion 86, the flange portion 90 of the tape reel 84 comes into contact with the protrusion 120, thereby preventing the flange portion 90 from being caught in the clearance. Thus, the tape reel 84 can be properly inserted into the reel holding portion 86, and the tape reel 84 can be appropriately replaced.

  Incidentally, in the above embodiment, the support pin 104 is an example of a reel support portion.

  The present invention is not limited to the above-described embodiment, but can be implemented in various modes with various modifications and improvements based on the knowledge of those skilled in the art. Specifically, for example, in the above embodiment, the support pins 104 are rotatably disposed on the side wall plate 100 so as to be rotatable about the axis, but may be fixed to the side wall plate 100. However, in order to ensure smooth rotation of the tape reel 84, it is desirable that the support pins 104 be rotatably disposed on the side wall plate 100.

  Further, in the above embodiment, the dome-shaped support pin 104 is employed as the pin for holding the tape reel 84, but pins having various shapes can be employed. However, in order to ensure the ease of replacement of the tape reel 84, it is desirable to use a dome-shaped support pin 104.

  Further, in the above embodiment, the maximum inclination angle of the side surface of the support pin 104 is 30 degrees, but the maximum inclination angle can be about 10 to 80 degrees. However, if the maximum inclination angle is too small, it is difficult to properly hold the tape reel 84, and if the maximum inclination angle is too large, it is difficult to replace the tape reel 84. In consideration of this, it is desirable that the maximum inclination angle of the side surface of the support pin 104 is about 20 to 40 degrees.

  Further, in the above embodiment, the inclination angle of the side surface of the support pin 104 decreases from the base end toward the distal end, but the inclination angle of the side surface of the support pin 104 is changed from the base end to the distal end. It is possible to make it larger as you go. Further, the inclination angle of the side surface of the support pin 104 can be made constant.

  Further, in the above embodiment, the annular protrusion 120 is formed on the side wall plate 100 so as to surround the support pin 104, but at least above the support pin 104 of the side wall plate 100, that is, the reel holding portion 86 If the tape reel 84 is formed in the direction in which the tape reel 84 is taken in and out, it is possible to prevent the flange portion 90 of the tape reel 84 from being caught in the clearance.

70: Tape feeder 72: Tape component 76: Electronic component 84: Tape reel 86: Reel holding unit 100: Side wall plate 104: Support pin (reel support unit) 120: Projection

Claims (3)

A tape feeder that rotatably holds a tape reel around which a taped component in which an electronic component is accommodated is wound and supplies the electronic component to an electronic component mounting device at a supply position.
A pair of side wall plates arranged to face each other in a predetermined size and in a separated state;
Wherein disposed in pair side wall plate, in shaft holes formed on the rotating shaft of the tape reel, viewed contains a reel support portion of a pair of sandwiching the tape reel,
Each of the pair of side wall plates has a protrusion,
The protrusion amount of the protrusion is smaller than the protrusion amount of the pair of reel support portions,
A tape feeder, wherein the tape reel can be inserted from above from between the pair of side wall plates . 2. The tape feeder according to claim 1, wherein each of the pair of reel supports has a shape whose diameter gradually increases from a distal end toward a proximal end. 3. 3. The tape feeder according to claim 1, wherein each of the pair of reel support portions is rotatably disposed with respect to each of the pair of side wall plates. 4.