JP2010140970A - Electronic component mounting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To disperse cut tapes as wastes to be collected in a cut tape collection box so that they don't gather at one place. <P>SOLUTION: The cut tape collection box in which cut tapes 3 are dropped at a drop position 15 and collected is moved reciprocally in a horizontal direction by a double action type air cylinder 27 that a reciprocal operation driving mechanism 20 has. The speed of leftward movement is set by a throttle valve of a speed control valve 24 to a speed which is a little faster such that the cut tapes 3 stored in the cut tape collection box 5 stay left by inertia. Further, the speed of rightward movement is set by a throttle valve of a speed control valve 25 to a speed which is a little slower such that the cut tapes 3 stored in the cut tape collection box 5 are easy to move to the right together with the cut tape collection box 5 without staying left by inertia. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention picks up the electronic components arranged in the longitudinal direction in the tape that is sequentially fed out by using the mounting nozzle provided in the mounting head unit, then moves the mounting nozzle to a corresponding position on the substrate, and The present invention relates to an electronic component mounting apparatus for mounting, and more particularly, to an electronic component mounting apparatus that can disperse waste cutting tape collected in a cutting tape collection box so that it does not accumulate in one place.

  FIG. 1 is a plan view showing a conventional electronic component mounting apparatus 50.

  In general, the electronic component mounting apparatus 50 is conveyed by a board conveyance path 52 extending in the left-right direction as shown in the drawing, and is supplied to the electronic component supply apparatus 45 on the positioned substrate 60. Mounting head portion 54, and an X-axis moving mechanism 56 and a Y-axis moving mechanism 57 for moving the mounting head portion 54 in the X direction and the Y direction, respectively. A plurality of electronic component supply devices 45 that supply electronic components are disposed on a supply device fixing base 48.

  FIG. 2 is a side view schematically showing an electronic component supply unit in the conventional electronic component mounting apparatus 50. FIG. 3 is a top view of the electronic component supply tape 1. 4 is an enlarged side view of the suction position 46 of FIG. 2, and FIG. 5 is a side view of the suction position 46 further enlarged.

  As shown in FIG. 3, the electronic component supply tape 1 wound around the tape reel 40 in FIG. 2 is provided with tape feed holes 1a for meshing the sprocket teeth and feeding them at a predetermined pitch. The components 7 are arranged and stored in the longitudinal direction. A cover tape 4 is affixed to the electronic component supply tape 1 so that the stored electronic component 7 does not fall off, and the cover tape 4 covers the electronic component 7.

  3 and 5, the electronic component 7 is indicated by ■, and in FIG. 5, the corresponding portion of the electronic component supply tape 1 after the electronic component 7 is absorbed and lost is indicated by □ with reference numeral 8. Has been.

  As shown in FIG. 2, the electronic component supply tape 1 is drawn out from the tape reel 40 on the reel base 42 in the direction of arrow A <b> 3 by the driving force inside the electronic component supply device 45 and pulled into the electronic component supply device 45. It is. As shown in FIGS. 4 and 5, the electronic component 7 having the cover tape 4 peeled and exposed is sucked at a suction position 46 by a suction nozzle 55 provided in the mounting head portion 54 of the electronic component mounting apparatus 50. After the suction, the electronic component mounting apparatus 50 moves the suction nozzle 55 to a corresponding position on the substrate and mounts the sucked electronic component 7.

  On the other hand, the extremely thin cover tape 4 after peeling is collected in the electronic component supply device 45 in the direction of the arrow A5 as shown in FIGS. The electronic component supply tape 1 from which the cover tape 4 has been removed is a relatively bulky carrier tape that is guided in the direction of the arrow A4 and sent out from the electronic component supply device 45 as shown in FIG. , Guided to the cutter 10.

  The cutter 10 has a pair of fixed blades 11 and a blade 12 movable by a drive source such as a cylinder as indicated by an arrow A2, so that the movable blade 12 is in the tape cutting direction (left direction in the figure). The taken electronic component supply tape 1 is cut. The electronic component supply tape 1 is cut into a length that can be easily processed as waste material by the cutter 10, and becomes a cutting tape 3 in the drawing.

  The cutting tape 3 slides down the slope 14 and falls into the cutting tape collection box 5. The cutting tape collection box 5 can be taken out to the right as indicated by an arrow “A1” in FIG. 2 while the electronic component mounting apparatus 50 is in operation. During the process, the cutting tape 3 collected and collected in the cutting tape collecting box 5 can be taken out of the electronic component mounting apparatus 50 and discarded into a trash box or the like.

  In the conventional example described above, the cutting tape 3 discharged by the cutter 10 is discharged by the slope 14. However, in Patent Document 1, the suction conveyance duct 17 (FIG. 1) is used, and in Patent Document 2, the air nozzle 48 is used. (FIG. 11), reciprocating brush 71 (FIG. 13), belt conveyor 72 (FIG. 14), vibrator 74 (FIG. 15), spiral blade 75 (FIG. 16), etc.

Japanese Patent Laid-Open No. 11-68382 (FIG. 1) JP 2004-327898 A (FIGS. 11 and 13 to 16)

  However, the cutting tape 3 that falls into the cutting tape collection box 5 tends to collect around the specific drop position 15, and the depth of the cutting tape collection box 5 is limited. In addition, Patent Document 1 and Patent Document 2 do not process the cutting tape 3 that is collected in the cutting tape collection box 5 and stacked therein.

  In the electronic component mounting apparatus 50, the installation height of the electronic component supply apparatus 45 naturally has an upper limit in terms of operability, workability, and equipment configuration, and there is a limit to increasing it. A tape reel 40 having a reel diameter that cannot be ignored is disposed below the electronic component supply device 45, and a cutting tape collection box 5 is disposed between the lower portion and the floor surface. Therefore, the space for disposing the cutting tape collection box 5 is limited, and there is a limit to increasing the depth of the cutting tape collection box 5.

  When the cutting tape 3 is accumulated to the full depth of the cutting tape collection box 5, when the cutting tape collection box 5 is pulled out in the direction of the arrow "A1" in the drawing, the cutting tape 3 becomes the tape reel 40 or the reel. It will get tangled in contact with the base 42. Furthermore, in the cutting tape collection box 5, if the cutting tape 3 accumulates at or around the drop position 15 from the slope 14, the cutting tape 3 cannot be discharged from the cutter 10 or the slope 14, so the volume of the cutting tape collection box 5 is increased. There was a problem that it could not be used effectively.

  The present invention has been made to solve the above-described conventional problems, and provides an electronic component mounting apparatus capable of dispersing waste cutting tape collected in a cutting tape collection box so that it does not accumulate in one place. Is an issue.

  The present invention picks up the electronic components arranged in the longitudinal direction in the tape that is sequentially fed out by using the mounting nozzle provided in the mounting head unit, then moves the mounting nozzle to a corresponding position on the substrate, and In the electronic component mounting apparatus to be mounted, a cutter for cutting the tape, a cutting tape collection box for dropping and collecting the cut tape, and a direction moving away from the dropping position, sent out with the pickup The reciprocating drive mechanism for horizontally reciprocating the cutting tape recovery box, and the reciprocating drive mechanism for attaching and detaching the cutting tape recovery box. The above-described problems are solved by including an attachment / detachment device that enables reciprocation.

  According to the present invention, the depth of the cutting tape recovery box cannot be increased, and even if the cutting tape falls toward the end of the recovery box, the cutting tape does not accumulate in one place, The volume can be used effectively, and it becomes difficult to come into contact with a reel or the like when taking out the cutting tape collection box. Further, since the cutting tape is transferred to the drawing portion of the cutting tape recovery box, it is possible to visually confirm the disposal time of the cutting tape.

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

  FIG. 6 is a side view partially including a pneumatic circuit diagram showing a main part of the electronic component mounting apparatus 50 according to the embodiment to which the present invention is applied.

  In this embodiment, a double-action air cylinder 27, a pneumatic circuit for reciprocating the double-action air cylinder 27 in the horizontal direction, and the air pressure as the reciprocating drive mechanism 20 with respect to the conventional example described above. A control circuit 21 that outputs a control signal for operating the electromagnetic valve 22 included in the circuit is provided.

  The pneumatic circuit includes speed control valves 24 and 25 in addition to the electromagnetic valve 22 described above. Further, in the air pressure circuit, air pressure is supplied from the factory air source 28, and air pressure exhaust is released to the atmosphere via the silencer 29.

  Next, FIG. 7 is a side view showing a mounting state of the detachable device in the present embodiment. Further, FIG. 8 is a side view showing a detached state (mounted state) of the detachable device.

  In the present embodiment, the double-acting air cylinder 27 of the reciprocating drive mechanism 20 is provided with an attachment / detachment device 30 using a magnet 32 and a magnetic member 34 that makes the cutting tape collection box 5 attachable / detachable. The magnet 32 is provided at the tip of the cylinder rod of the double-acting air cylinder 27, and the magnetic member 34 is provided on the end face of the cutting tape collection box 5.

  In the electronic component mounting apparatus 50, when the cutting tape collection box 5 is stored to a position where the cutting tape 3 falling from the slope 14 can be collected, the magnetic member 34 of the cutting tape collection box 5 is shown in FIG. Is attracted to the magnet 32 by a magnetic force, and integrated with the reciprocating operation of the double-acting air cylinder 27, the cutting tape recovery box 5 can reciprocate.

  Alternatively, when the cutting tape collection box 5 is taken out of the electronic component mounting device 50, the mounting state of the detachable device 30 is released by manually applying a tensile force greater than the above-described magnetic force as shown in FIG. The cutting tape collection box 5 can be taken out.

  Here, the magnetic force of the magnet 32 that adsorbs the magnetic member 34 and attaches the cutting tape collection box 5 to the cylinder rod of the double-action air cylinder 27 in the reciprocating drive mechanism 20 is reciprocated by the reciprocating drive mechanism 20. It must be strong enough not to leave. On the other hand, the magnetic force of the magnet 32 is such that when the cutting tape collecting box 5 is taken out of the electronic component mounting apparatus 50, the magnet 32 and the magnetic member 34 can be pulled apart by hand and the adsorption by the magnetic force can be released. Must be:

  FIG. 9 is a time chart showing the reciprocating operation of the cutting tape recovery box 5 in the present embodiment.

  In this time chart, the left moving end of the control signal of the solenoid valve 22 on (on) and off (off) and the cylinder rod of the double-acting air cylinder 27 in the horizontal and horizontal directions in FIG. The timing of the moving position from (L) to the right moving end (R) is shown.

  First, in the state where the control signal output from the control circuit 21 to the electromagnetic valve 22 is OFF, in FIG. 9, the spool of the electromagnetic valve 22 is in FIG. 6 during the period from time t1 to time t4. The air pressure from the factory air source 28 is applied to the double acting air cylinder 27 through the speed control valve 25, and the cylinder rod of the double acting air cylinder 27 moves left. As the left line moves, pneumatic exhaust is discharged from the double-acting air cylinder 27 to the atmosphere via the speed control valve 24 and the silencer 29.

  Here, when the control signal of the electromagnetic valve 22 is OFF, air pressure flows to the check valve in the speed control valve 25 and to the throttle valve in the speed control valve 24. Therefore, for example, from time t2 in FIG. The speed of the leftward movement of the cylinder rod, which is indicated by the slope (speed) of the graph in the time chart of the cylinder rod position during the period up to t3, is controlled by the throttle valve of the speed control valve 24. Further, the speed of the leftward movement is set to an early speed such that the cutting tape 3 accommodated in the cutting tape collection box 5 is left behind by inertia.

  Next, in a state in which the control signal output from the control circuit 21 to the electromagnetic valve 22 is on, in FIG. 9, the period of time t1 to time t2, and the period after time t4, the spool of the electromagnetic valve 22 is not illustrated. 6, the air pressure from the factory air source 28 is applied to the double-acting air cylinder 27 through the speed control valve 24, and the cylinder rod of the double-acting air cylinder 27 travels to the right. Further, along with the right row, pneumatic exhaust is discharged from the double-acting air cylinder 27 through the speed control valve 25 and the silencer 29 to the atmosphere.

  Here, when the control signal of the electromagnetic valve 22 is ON, air pressure flows to the check valve in the speed control valve 24 and to the throttle valve in the speed control valve 25. Therefore, for example, from time t1 in FIG. The speed of the rightward movement of the cylinder rod, indicated by the slope (speed) of the graph in the time chart of the cylinder rod position during the period from t2 to time t4 to the time t5, is the throttle of the speed control valve 25. Controlled by a valve. Further, the speed of the rightward movement is a slow speed that allows the cutting tape 3 accommodated in the cutting tape recovery box 5 to move rightward together with the cutting tape recovery box 5 without being left behind by inertia. Set to

  As described above, the speed of the left moving operation of the cutting tape recovery box 5 by the double-acting air cylinder 27 is such that the cutting tape 3 accommodated in the cutting tape recovery box 5 is left behind by inertia. Set to speed. Also, the speed of the right-hand movement is slow so that the cutting tape 3 housed in the cutting tape collection box 5 is not left behind by inertia and can easily move right along with the cutting tape collection box 5. Is set.

  Accordingly, the cutting tape 3 accommodated in the cutting tape recovery box 5 falls in the right direction in FIG. 6, that is, from the cutter 10 side, as the cutting tape recovery box 5 is reciprocated by the double-acting air cylinder 27. The moving position gradually moves in the direction opposite to the position 15 where the cutting tape is collected and in the direction of taking out the cutting tape collecting box 5 (arrow in FIG. 6). As a result, the waste cutting tape 3 to be recovered can be dispersed in the cutting tape recovery box 5 so as not to accumulate in one place. In addition, since the cutting tape 3 is moved toward the take-out direction of the cutting tape collection box 5, the amount of the cutting tape 3 in the cutting tape collection box 5 can be easily seen from the take-out direction side.

  In the present embodiment, the reciprocating drive mechanism 20, the attachment / detachment device that allows the cutting tape collection box 5 to be attached and detached, and the structure of the cutting tape collection box 5 that can be taken out are not specifically limited.

  For example, a low friction tape such as a Teflon (registered trademark) tape may be attached to the sliding portion so as not to be damaged due to sliding wear or the like due to the reciprocating motion of the cutting tape collection box 5. A linear guide or the like may be provided below the base on which the cutting tape recovery box 5 is mounted, and the cutting tape recovery box 5 and the base may smoothly reciprocate in the electronic component mounting apparatus 50. In this case, the base may be reciprocated by the reciprocating operation drive mechanism 20, thereby causing the cutting tape recovery box 5 to reciprocate.

  The driving force in the reciprocating drive mechanism 20 for reciprocating the cutting tape collection box 5 is the double-acting air cylinder 27 in this embodiment, but it may be a hydraulic cylinder and rotated by a cam mechanism using an electric motor. You may make it convert a motion into a reciprocating motion.

  During the reciprocating operation of the cutting tape recovery box 5 of the present invention, if vibrations or the like due to the operation may affect other functions and accuracy of the electronic component mounting apparatus 50, such a period The control circuit 21 may control the cutting tape collection box 5 so as not to reciprocate. The control circuit 21 may use another control circuit in the electronic component mounting apparatus 50.

  Moreover, in this invention, the material and shape of the bottom part inside which accommodates the cutting tape 3 collect | recovered of the cutting tape collection | recovery box 5 are not specifically limited. For example, the bottom 5a of the cutting tape recovery box 5 has a cross-sectional shape as shown in FIG. 10, so that the cutting tape 3 is dropped at the position 15 when the cutting tape recovery box 5 is reciprocated by the reciprocating drive mechanism 20. It becomes easy to move away from the direction.

  FIG. 10 is a cross-sectional view of the bottom 5a of the cutting tape recovery box 5 as seen from the same direction as FIG. 2 and FIG.

  In the bottom 5a of the cutting tape collection box 5, the inclined surfaces 5b and 5c are repeatedly provided in a wave shape in a direction away from the dropping position 15, for example, in the right direction in FIG. The distance between the pair of inclined surfaces 5b and 5c is preferably smaller than the amplitude of the reciprocating operation of the cutting tape collection box 5 by the reciprocating drive mechanism 20. When the cutting tape recovery box 5 moves leftward by the double-acting air cylinder 27, the inclination of the inclined surface 5b is made gentle so that the cutting tape 3 is easily left behind by inertia with respect to the leftward movement. Further, by increasing the inclination of the slope 5c during the right-hand movement, the cutting tape 3 is less likely to be left behind due to inertia with respect to the left-hand movement. Therefore, as shown in this figure, the slope of the slope 5c is made larger than the slope of the slope 5b.

  Also, in this figure, the smaller the angle between the inclined surfaces 5b and 5c in the groove 5d, the easier the cutting tape 3 is left when the cutting tape 3 is removed from the cutting tape collection box 5. Therefore, the angle is preferably about 60 degrees or more.

Plan view showing an example of a conventional electronic component mounting apparatus Side view showing an outline of an electronic component supply unit in the conventional electronic component mounting apparatus Top view of the conventional electronic component supply tape The side view which expanded the adsorption position 46 of FIG. The side view which expanded the said adsorption position 46 further The side view which shows a principal part of the electronic component mounting apparatus of embodiment with which this invention was applied, including a part of pneumatic circuit diagram The side view which shows the mounting state of the attachment or detachment apparatus in the said embodiment. The side view which shows the removal state of the said attachment / detachment apparatus Time chart showing reciprocating operation of cutting tape recovery box 5 in the embodiment Cross-sectional view of the bottom 5a of the cutting tape recovery box 5 in the embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Electronic component supply tape 3 ... Cutting tape 5 ... Cutting tape collection box 10 ... Cutter 14 ... Slope 15 ... Dropping position 21 ... Control circuit 22 ... Solenoid valve 24, 25 ... Speed control valve 27 ... Double acting type air cylinder 28 ... Factory air source 29 ... Silencer 30 ... Detachment device 32 ... Magnet 34 ... Magnetic member 45 ... Electronic component supply device 46 ... Adsorption position

Claims (1)

After picking up the electronic components arranged in the longitudinal direction on the tape that is fed out sequentially with the mounting nozzle provided in the mounting head, the mounting nozzle is moved to the appropriate position on the substrate and the picked-up electronic component is mounted. In electronic component mounting equipment,
A cutter for cutting the tape, which is sent out along with the pickup;
A cutting tape collection box for dropping and collecting the cut tape; and
A reciprocating drive mechanism for reciprocating the cutting tape recovery box horizontally, slowly in the direction away from the drop position, and fast in the approaching direction;
An attachment / detachment device that allows the cutting tape recovery box to be attached to and detached from the reciprocating drive mechanism, and that enables the reciprocating operation when attached;
An electronic component mounting apparatus comprising:

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