JP2008218657A - Tape cutting apparatus, component mounting apparatus, and tape cutting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safe tape cutting apparatus having less maintenances, a component mounting apparatus mounted with the tape cutting apparatus, and a tape cutting method. <P>SOLUTION: In the tape cutting apparatus 200, a roller mechanism 80 includes a first roller 81 disposed under a second roller 82, the second roller 82 disposed oppositely to the first roller 81, and a rotational driving mechanism 84 for rotating and driving the second roller 82. In the X-Y plane of the tape cutting apparatus 200 wherein disused tapes 32 are disposed, the second roller 82 is disposed at such an angle that stress including the component of a direction A1 different from the length direction of each disused tape 32 is applied to each disused tape 32. When regulating the movement of each disused tape 32 by a presser roller 72, the stress including the component of the rotational direction A1 of the second roller 82 is applied to each disused tape 32 via the roller mechanism 80. In this way, by cutting each disused tape 32 via the roller mechanism 80, the maintenance of the tape cutting apparatus 200 is reduced, and its safety is improved. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a tape cutting device for cutting a carrier tape containing electronic components, a component mounting device equipped with the tape cutting device, and a tape cutting method.

  A component mounter for mounting electronic components on a circuit board includes a component supply device (tape feeder) that supplies the electronic components to the component mounter and is detachable from the component mounter. Openings (component sealing holes) are formed at a predetermined pitch in the longitudinal direction of the tape provided in the component supply device, and electronic components are stored in the component sealing holes. A top tape is affixed to the tape so that electronic components do not fall off the tape (see, for example, Patent Document 1).

  Generally, when a component supply device is mounted on a component mounter and a tape is transferred by the component supply device, the top tape is peeled off from the tape in which the electronic component is accommodated by the mechanism of the component supply device. And an electronic component is picked up by the component suction nozzle with which a component mounting machine is provided. The suction nozzle is configured to suck electronic components by generating negative pressure, for example.

  In the device of Patent Document 1, the top tape (2) is peeled off at the position a, and the electronic component (25) is attracted to the tape (28) (see FIG. 4) containing the electronic components at the position a shown in FIG. Picked up by a nozzle. The peeled top tape (2) is sent to the cutter part (34) by driving the lever with gear (7) or the like. The cutter part (34) includes a rotary blade (13) and a fixed blade (14) shown in FIG. 2 (b). In FIG. 2 (b), the top tape (2) advances in a direction perpendicular to the paper surface, and the top tape (2) is sandwiched between the rotary blade (13) and the fixed blade (14). Disconnected. The cut top tape (2) is sucked from the suction duct (16) and discarded.

  By the way, the tape (empty tape) discharged from the component supply apparatus is often discarded. Since the empty tape is made of a relatively strong material in terms of the function of accommodating electronic components, the empty tape storage efficiency at the time of disposal is extremely poor. Therefore, this empty tape is often cut by a cutter with a blade (see, for example, Patent Document 2).

JP 2000-128116 A (paragraphs [0021], [0023], etc., FIGS. 1 to 4) Japanese Patent Laying-Open No. 2002-16392 (paragraph [0011], FIG. 3)

  However, as in Patent Document 2, a cutter with a blade has a problem that the blade deteriorates. In addition, ceramic electronic parts may remain on the empty tape. Therefore, in that case, when the ceramic electronic component is cut together with the empty tape by the cutter, the blade is significantly deteriorated. When the cutter is used in a state where the blade is deteriorated, the structure in which the cutter moves for cutting may cause the empty tape to be pulled without being cut. In this case, for example, when the empty tape discharged from the component supply device is automatically and continuously cut by the cutting device disclosed in Patent Document 2, the mechanism of the component supply device is adversely affected. Even if the worker performs maintenance such as periodically changing the cutter, the maintenance is dangerous, and therefore the labor of the worker increases and costs increase.

  In view of the circumstances as described above, an object of the present invention is to provide a tape cutting device that is less maintenance and safe, a component mounting device equipped with the tape cutting device, and a tape cutting method thereof.

  In order to achieve the above object, a tape cutting device according to the present invention is a tape cutting device that cuts a tape that can accommodate an electronic component, and a pair of a mechanism that sandwiches the tape and a regulating mechanism that regulates the movement of the tape. A roller that includes a component in a first direction different from the length direction of the tape in a direction in which the tape is disposed when the movement of the tape is restricted by the restriction mechanism. A roller mechanism that rotationally drives the pair of rollers so as to apply stress to the tape.

  In the present invention, the tape is sandwiched between the pair of rollers of the roller mechanism, and stress in a predetermined direction is applied to the tape, whereby the tape can be cut without using a blade. Since no blade is used, it is safe and maintenance can be reduced.

  In the present invention, the stress including the first direction component can be applied to the tape by appropriately controlling the combination of the directions of the rotation axes of the pair of rollers. Moreover, the magnitude of the stress of the component in the first direction can be controlled by controlling the combination of the directions of the rotation axes.

  In the present invention, the pair of rollers includes a first roller and a second roller that is arranged to face the first roller and is rotatable in the first direction.

  “Rotating in the first direction” means rotating with the first roller and the second roller sandwiching the tape as a center axis of rotation substantially perpendicular to the first direction. Means. In the present invention, when the second roller rotates in the first direction, a stress including a component in the first direction is applied to the tape.

  In the present invention, the rotation direction of the first roller may be the first direction or a direction different from the first direction.

  In the present invention, the restriction mechanism includes a roller base and a pressing roller that presses the tape against the roller base, and the tape cutting device has a direction different from the length direction of the tape. In addition, the apparatus further includes a moving head that is movable in a second direction different from the first direction and that rotatably supports the pressing roller and the second roller. According to the present invention, when the moving head moves, the movement of the tape is restricted by being pressed against the roller base by the pressing roller. At that time, the second roller moves in the second direction by the moving head while rotating in the first direction. Thereby, for example, when a plurality of tapes are arranged in the second direction, the plurality of tapes can be sequentially cut by moving the moving head.

  In the case of the present invention, if the first roller is formed in a cylindrical shape that is long in the moving direction of the moving head, or a roller such as an endless belt having a flat portion in contact with the second roller. Good. Or what is necessary is just to be comprised so that multiple 1st rollers may be arranged in the 2nd direction.

  In the present invention, the first roller rotates in such a direction as to feed the tape in the length direction of the tape. Accordingly, the tape can be substantially sent out in the length direction while rotating the second roller in the first direction.

  In the present invention, the roller mechanism includes a drive mechanism that rotationally drives the second roller. When the second roller is rotated by the drive mechanism, the moving head is moved while the second roller rotates. That is, the second roller and the drive mechanism have both a function of moving the moving head and a function of cutting the tape. Thereby, size reduction of a tape cutting device is realizable.

  In the present invention, the pressing roller has an elastic portion for pressing the tape. Thus, when the part which contacts a tape of a pressing roller has elastic force, the contact area of a pressing roller and a tape can be enlarged. Thereby, even if it is a case where there exists a thickness difference with the attitude | position of a tape, and another tape arrange | positioned next to the said tape, the difference can be absorbed. That is, the tolerance of the pressing roller due to the difference in the tape type can be increased.

  In the present invention, the tape cutting device has a rotation center axis perpendicular to a rotation axis for rotating the second roller, and a rotation mechanism for rotating the second roller about the rotation center axis. Is further provided. Thereby, the second roller can be rotated according to the reciprocating movement of the moving head. Therefore, no matter which direction the moving head moves, stress in a predetermined direction can be applied to the tape, and the processing efficiency of cutting can be improved.

  In the present invention, the rotation center axis is provided so as to pass through a position shifted from the center of the region of the second roller contacting the first roller. Thereby, when the moving direction of the moving head is reversed, the second roller rotates about the rotation center axis by the action of the frictional force acting between the first roller and the second roller. As a result, a separate drive mechanism for rotating the second roller may not be provided, and the tape cutting device can be downsized.

  A component mounting apparatus according to the present invention is a component mounting apparatus that picks up the electronic component from a tape capable of accommodating the electronic component supplied from the component supply device and mounts the electronic component on a circuit board. A mounting mechanism for mounting on a circuit board; a restriction mechanism for restricting movement of the tape discharged from the component supply device; and a pair of rollers for sandwiching the tape; and movement of the tape is restricted by the restriction mechanism. The pair of rollers is rotationally driven so that a stress including a component in a first direction different from the length direction of the tape is applied to the tape in a direction in which the tape is disposed. And a tape cutting device including a roller mechanism.

  The tape cutting method according to the present invention regulates movement of a tape capable of accommodating an electronic component, and when the movement of the tape is restricted, the tape cutting method is a direction in a plane in which the tape is disposed and the length of the tape. A stress including a component in a first direction different from the vertical direction is applied to the tape. In the present invention, the tape is cut without using a blade by applying a stress including a component in a first direction different from the length direction of the tape in a direction in which the tape is disposed to the tape. can do. Since no blade is used, it is safe and maintenance can be reduced.

  As described above, according to the present invention, it is possible to realize a tape cutting device with less maintenance and high safety.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a front view showing a component mounting apparatus according to an embodiment of the present invention. FIG. 2 is a plan view in which a part of the component mounting apparatus 10 is broken. FIG. 3 is a side view showing the component mounting apparatus 10.

  The component mounting apparatus 10 is provided at a substantially central position, a board placement section 40 on which the circuit board 19 is placed, and a tape feeder placement on which, for example, both sides of the board placement section 40 are placed and a tape feeder 100 as a component supply apparatus is placed. Part 60. In addition, the component mounting apparatus 10 includes a mounting mechanism 50 that mounts the electronic component 4 supplied from the tape feeder 100 on the circuit board 19 disposed in the substrate placement unit 40.

  For example, in the component mounting apparatus 10, the base unit 12, a machine base 13 that supports the base unit 12, and a plurality of support posts 14 erected on the machine support 13, for example, two support posts 14, are bridged. A beam 15 is provided. For example, four columns 14 are provided, and two beams 15 are provided, for example. In the following description, the direction in which the beam 15 extends may be referred to as the X-axis direction, the direction orthogonal to the X-axis in the horizontal plane may be referred to as the Y-axis direction, and the vertical direction may be referred to as the Z-axis direction.

  The mounting mechanism 50 includes a suction nozzle 18 as a pickup unit that picks up the electronic component 4 from the tape feeder 100, a tool head 17 on which the suction nozzle 18 is mounted and rotatably provided, and a carriage 30 that holds the tool head 17. Yes. A movable body 16 that extends in the Y-axis direction and is movable in the X-axis direction is bridged over the beam 15. The carriage 30 is attached so as to be movable along the moving body 16 in the Y-axis direction. Therefore, the suction nozzle 18 mounted on the tool head 17 is configured to be movable in the horizontal plane (in the XY plane) by the carriage 30 and the moving body 16.

  Typically, a guide rail 21 extends in the X-axis direction on the lower surface of the beam 15. Fixed guided bodies 22 are slidably engaged with the guide rails 21 on the upper surfaces of both ends of the moving body 16. As a result, the moving body 16 can move along the beam 15 in the X-axis direction. As a driving method for moving the moving body 16, for example, a belt driving mechanism is used, but is not limited thereto, and a ball screw driving mechanism, a linear motor driving mechanism, or other driving mechanism may be used.

  Further, as described above, the carriage 30 can be moved in the Y-axis direction by driving a ball screw provided in the movable body 16. Also in this case, it is not limited to the ball screw, and a belt drive mechanism, a linear motor mechanism, or another drive mechanism may be used.

  A fixing mechanism 20 that supports and fixes the circuit board 19 from below is provided in the board placement unit 40. The circuit board 19 is positioned by the fixing mechanism 20. In the present embodiment, two circuit boards 19 are arranged at a predetermined interval in the board arrangement section 40, but the number of circuit boards 19 arranged is not limited.

  The tool head 17 is provided so as to be suspended from the carriage 30. The tool head 17 can be rotated forward and backward by a built-in motor (not shown). As shown in FIG. 1, the rotation main axis a1 of the tool head 17 is provided in a state inclined with respect to the Z-axis direction.

  For example, twelve suction nozzles 18 are arranged at equal intervals in the circumferential direction at a portion near the outer periphery of the tool head 17. The suction nozzle 18 is mounted on the tool head 17 so that the axis of the suction nozzle 18 is inclined with respect to the rotation main axis a <b> 1 of the tool head 17. The inclination is such that the upper end of the suction nozzle 18 approaches the rotation main axis a <b> 1 of the tool head 17. That is, as a whole, the 12 suction nozzles 18 are arranged so as to expand toward the end with respect to the tool head 17.

  The suction nozzle 18 is supported so as to be movable in the axial direction with respect to the tool head 17. When the suction nozzle 18 is positioned at an operation position described later, the suction nozzle 18 is pressed from above by a pressing mechanism (not shown) and descends. This pressing mechanism may be anything such as a cam mechanism, a ball screw mechanism, a solenoid, or an air pressure generating mechanism.

  The axis of the suction nozzle 18 located on the right end in FIG. 1 on the rear end side of the tool head 17 in the suction nozzle 18 is directed to the Z-axis direction, and the position on the rear end side is the above-described operation. Corresponds to position. The electronic component 4 is sucked or removed by the suction nozzle 18 positioned at the operation position and facing the vertical direction.

  There are a plurality of types of electronic components 4 mounted on one circuit board 19. Thus, the different electronic components 4 cannot be mounted by being sucked by the single kind of suction nozzle 18. Therefore, a plurality of types of suction nozzles 18 are provided, and the corresponding electronic component 4 is sucked and mounted by an optimal suction nozzle. Examples of the electronic component 4 include various types such as an IC chip, a resistor, a capacitor, and a coil.

  The suction nozzle 18 is connected to an air compressor (not shown), and the tip of the suction nozzle 18 positioned at the operation position is switched to negative pressure or positive pressure at a predetermined timing. As a result, the electronic component 4 is attracted or separated at the tip.

  An area occupied by the circuit board 19 positioned and held by the fixing mechanism 20 constitutes a component mounting area M.

  As shown in FIG. 2, a plurality of tape feeders 100 are detachably provided in the tape feeder arrangement portions 60 on both the left and right sides of the component mounting region M. The plurality of tape feeders 100 are arranged in the X-axis direction, for example. For example, although 40 tape feeders 100 can be mounted in one tape feeder placement unit 60, the number of tape feeders 100 is not limited. A large number of electronic components 4 of the same type are accommodated in a carrier tape 1 described later of one tape feeder 100. The tape feeder 100 supplies these electronic components 4 to the suction nozzle 18 as necessary.

  In the tape feeder 100, different types of electronic components 4 are stored for each tape feeder 100. Then, the suction nozzle 18 and the tape feeder 100 are selected depending on where the electronic component 4 is mounted on the circuit board 19, and the electronic component 4 is sucked.

  In the present embodiment, the tape feeder arrangement portion 60 is provided on both the left and right sides of the component mounting area M, but the tape feeder arrangement portion 60 is provided only on one of the left and right sides of the component mounting area M. Also good.

  As will be described later, a component supply port 125 is provided at one end of the tape feeder 100. Each tape feeder 100 is mounted on the tape feeder arrangement portion 60 so that one end portion provided with the component supply port 125 faces the component mounting region M side. The suction nozzle 18 picks up the electronic component 4 through the component supply port 125. Thus, the suction nozzle 18 when the electronic component 4 is picked up, or the region of the tool head 17 at that time (the region including the operation position) is defined as the component supply region S. In the tool head 17, the suction nozzle 18 that has come to the operation position moves within the range of the component supply region S, the component mounting region M, and the region connecting these regions S and M.

  The tool head 17 first moves onto the component supply area S, and sequentially sucks predetermined electronic components 4 by twelve suction nozzles 18 provided in the tool head 17. Then, the tool head 17 moves to the component mounting area M, and the components sucked by the suction nozzle 18 are sequentially mounted at predetermined positions on the circuit board 19 while adjusting the movement in the X-axis direction and the Y-axis direction. . The movement of the tool head 17 in the X-axis direction and the Y-axis direction is performed by the moving body 16 and the carriage 30 described above. By repeating this operation, the electronic component 4 is mounted on the circuit board 19.

  As shown in FIG. 1 and FIG. 3, a tape cutting device 200 that cuts the empty tape discharged from the tape feeder 100 is disposed at the lower portion of the tape feeder arrangement portion 60. This will be described later.

  FIG. 4 is a schematic exploded perspective view showing the tape feeder 100.

  The tape feeder 100 includes a chassis 160, a sprocket 106 rotatably provided at one end 162 of the chassis 160, a motor (not shown) that drives the sprocket 106 provided in the chassis 160, and an end 162 of the chassis 160. And a cover 120 that can be opened and closed. On the other end of the chassis 160 opposite to the one end, there is provided a protrusion with which the reel 180 around which the carrier tape 1 is wound is engaged.

  In the following description, one end 162 of the chassis 160 is referred to as a front end 162, and the opposite side is referred to as a rear end 161. Regarding the direction, the direction from the rear end 161 toward the front end 162 is referred to as the front, and the opposite direction is referred to as the rear.

  The chassis 160 has, for example, a horizontally long shape, and has a horizontally long passage 164 through which the carrier tape 1 pulled out from the reel 180 passes. One end 164a of the passage 164 is formed so as to face obliquely upward as it goes toward the front end of the chassis 160, and the passage 164 is exposed through an opening 164b formed in the upper surface of the chassis 160. The carrier tape 1 is pulled out from the opening 164 b and engages with the teeth 106 a of the sprocket 106 exposed between the cover 120 and the front end 162 of the chassis 160.

  FIG. 5A is a perspective view showing a reel 180 around which the carrier tape 1 is wound. FIG. 5B is a cross-sectional view showing the carrier tape 1. The carrier tape 1 includes a tape body 2, a cover tape 5 attached to the surface of the tape body 2, and a bottom tape 3 attached to the surface opposite to the surface of the tape body 2. The tape body 2 is provided with a transfer hole 2a in which the teeth 106a of the sprocket 106 are engaged, and an accommodation hole 2b in which the electronic component 4 is accommodated. A plurality of accommodation holes 2b are provided at a predetermined pitch along the longitudinal direction of the tape body 2, and a plurality of transfer holes 2a are also provided so as to correspond to the respective accommodation holes 2b. At least the bottom tape 3 has a width that exposes the transfer hole 2 a in the tape body 2, that is, a width smaller than the tape body 2.

  The accommodation hole 2 b and the transfer hole 2 a are arranged so as to be aligned in the width direction of the tape body 2. Therefore, the teeth 106 a of the sprocket 106 and the electronic components 4 accommodated in the tape body 2 engaged with the teeth 106 a are arranged in the width direction of the tape body 2.

  FIG. 6 is a perspective view showing the front end side of the chassis 160. This figure shows a state in which the cover 120 is closed. The cover 120 is provided with the component supply port 125 described above. The front end of the cover 120 is provided with a discharge port 126 for discharging the tape main body 2 (and the bottom tape 3 attached thereto) of the carrier tape 1. The peeling portion 105 of the cover tape 5 is disposed at the edge of the component supply port 125. The peeling unit 105 peels the cover tape 5 from the tape body 2 so as to fold the cover tape 5 with respect to the carrier tape 1 transfer direction (direction toward the front end).

  Note that the cover tape 5 folded back at the peeling portion 105 as described above is taken up by a take-up reel (not shown) while being applied with tension, or is freely discharged as it is.

  FIG. 7 is a schematic plan view of a tape cutting device 200 according to an embodiment of the present invention. FIG. 8 is a side view of the tape cutting device 200 shown in FIG.

  The tape cutting device 200 includes a regulating mechanism 70 that regulates the movement of the tape main body 2 (hereinafter referred to as waste tape 32) discharged from the tape feeder 100, and a roller mechanism 80 having a pair of rollers that sandwich the waste tape 32. Prepare.

  The restriction mechanism 70 includes a roller base 71 and a pressing roller 72 that presses the waste tape 32 against the roller base 71. The roller base 71 extends in the X-axis direction and is fixed to, for example, the base portion 12 of the component mounting apparatus 10, the ground, or other fixed structure. The pressing roller 72 moves on the roller base 71.

  As shown in FIG. 9, the pressing roller 72 has a rubber material as an elastic portion 72a for pressing the waste tape 32, for example. The pressing roller 72 may be configured like a tire. As described above, since the portion of the pressing roller 72 that contacts the waste tape 32 is made of rubber, the contact area between the pressing roller 72 and the waste tape 32 is increased as compared to a case of resin, metal, or the like that is more rigid than rubber. can do. Thereby, even if there is a thickness difference between the posture of the waste tape 32 and another waste tape 32 arranged next to the waste tape 32 as shown in FIG. 7, the difference can be absorbed. it can. That is, the tolerance of the pressing roller 72 due to the difference in the type of the waste tape 32 can be increased.

  The pressing roller 72 is not limited to a tire shape, and may be any elastic body. For example, the pressing roller 72 may be a rubber that does not contain air inside or a sponge that contains air inside. However, the pressing roller 72 does not necessarily have an elastic portion such as rubber.

  A guide (not shown) of the waste tape 32 may be provided so that the waste tape 32 faces in a predetermined posture, for example, the length direction in the Y-axis direction orthogonal to the X-axis direction. Such a guide may be provided on the upstream side of the waste tape 32 from the roller base 71 and the pressing roller 72 (the side on which the tape feeder 100 is disposed). Typically, the guide may be a groove shape, a tunnel shape, or the like.

  As shown in FIGS. 1, 2, and 3, a plurality of tape feeders 100 are arranged in the X-axis direction in the tape feeder arrangement unit 60. Accordingly, as shown in FIG. 7, the waste tapes 32 discharged from the respective tape feeders 100 are transferred so as to be aligned in the X-axis direction.

  The roller mechanism 80 rotationally drives the first roller 81 disposed at the lower part of the pair of rollers, the second roller 82 disposed so as to face the first roller 81, and the second roller 82. Rotating drive mechanism 84. The rotation drive mechanism 84 is constituted by, for example, a motor or a gear box that decelerates the motor. The second roller 82 is typically supported by a support base 83 that rotatably supports the second roller 82. A motor, a reduction gear, and the like are attached to the support base 83. As a motor of the rotation drive mechanism 84, for example, a servo motor is used, but is not limited thereto.

  The first roller 81 is configured to rotate around a shaft 81a (see FIG. 8) that is long in the X-axis direction. The first roller 81 is disposed so as to contact the second roller 82, and the waste tape 32 is transferred so that the waste tape 32 is disposed between the first roller 81 and the second roller 82. Come. A predetermined frictional force acts between the first roller 81 and the second roller 82, and the first roller 81 is driven by the second roller 82, and the waste tape 32 is disposed in the length direction of the waste tape 32. The tape 32 is rotated in the direction in which it is fed out.

  As shown in FIG. 7, the second roller 82 is in a direction (in the XY plane) in which the waste tape 32 is disposed in the tape cutting device 200, and is the length direction of the waste tape 32. They are arranged at such an angle that stresses including components in different directions A1 (first direction) are applied to the waste tape 32. That is, the rotation axis A2 of the second roller 82 is inclined in a direction orthogonal to the first direction A1.

  At least contact surfaces of the first roller 81 and the second roller 82 that are in contact with each other are made of resin, metal, rubber, ceramic, or the like. When the contact surface is made of rubber, it is typically made of hard rubber. The contact surface of the first roller 81 and the contact surface of the second roller 82 may be made of different materials.

  The first roller 81 or the pressing roller 72 may also be configured to be rotatably supported by a member such as the support base 83 like the second roller 82.

  The tape cutting device 200 includes a moving head 90 that supports the first and second rollers 82. Typically, a support member 73 that supports the pressing roller 72 and a support member 85 that supports the support base 83 are fixed to the moving head 90.

  The moving head 90 is suspended from a guide rail 91 extending in the X-axis direction, for example. The guide rail 91 is fixed to the base 12, the ground, or other fixed structure. A wheel 92 is mounted on the moving head 90, and the wheel 92 engages with the upper portion of the guide rail 91 and travels so that the moving head 90 moves along the guide rail 91 in the X-axis direction (second direction). It is possible to move to. The moving direction of the moving head 90 does not have to be strictly along the X-axis direction, and may be different from the first direction A1. The moving head 90 is not limited to such a structure, and various forms are conceivable.

  At least one of the pressing roller 72 and the second roller 82 may be configured to be incorporated in the moving head 90. In that case, a form in which the lower part of the pressing roller 72 (and the lower part of the second roller 82) is exposed from the lower part of the moving head 90 is conceivable.

  The operation of the tape cutting device 200 configured as described above will be described.

  The waste tape 32 is discharged from the tape feeder 100, and the waste tape 32 is transferred to the tape cutting device 200. When the second roller 82 is rotated by driving the rotation drive mechanism 84, a propulsive force is applied to the moving head 90. The rotation direction of the second roller 82 is clockwise as viewed from the pressing roller 72, as shown in FIG. Here, since the rotation axis A2 of the second roller 82 is inclined, the propulsive force of the second roller 82 itself acts in the oblique direction A1. However, since the first roller 81 is driven by the frictional force between the first roller 81 and the second roller 82, the propulsive force in the Y-axis direction component (upward in FIG. 7) of the second roller 82 is the first The rotation of the roller 81 is canceled. Accordingly, the propulsive force of the component in the X-axis direction of the second roller 82 remains, and this becomes the propulsive force that moves the moving head 90.

  The timing at which the moving head 90 starts moving may be controlled by a control unit (not shown) included in the component mounting apparatus 10 or a control unit (not shown) provided in the tape cutting device 200. Alternatively, the start timing control may be performed manually by the operator.

  As described above, when the moving head 90 moves, the waste tape 32 is sandwiched between the roller base 71 and the pressing roller 72, and the movement of the waste tape 32 is restricted.

  When the movement of the waste tape 32 is restricted by the pressing roller 72, the roller mechanism 80 applies stress including a component in the direction A1 in which the second roller 82 rotates to the waste tape 32. FIG. 10 is a schematic diagram showing the situation at this time. It is assumed that the moving head 90 is moving in the direction C1. The waste tape 32 is applied not only with the stress of the component in the direction A1 but also in the Y-axis direction due to the rotation of the first roller 81. By applying such a force to the waste tape 32, the waste tape 32 is torn from a certain point (or region) B1 in the region sandwiched between and in contact with the first and second rollers 82. Disconnected.

  Thus, the cutting operation of the waste tape 32 by the roller mechanism 80 is repeated as the moving head 90 further moves in the direction C1.

  The inventor conducted an experiment of cutting the waste tape 32 by using the method of the tape cutting device 200 according to the present embodiment. As a result, the waste tape 32 could be cut with a probability close to 100%.

  As described above, in the tape cutting device 200 according to the present embodiment, the waste tape 32 is sandwiched between the pair of rollers 81 and 82 of the roller mechanism 80, and stress in the oblique direction A1 is applied to the waste tape 32. The waste tape 32 can be cut without using a blade.

  In the present embodiment, the magnitude of the stress including the component in the direction A1 can be controlled by appropriately adjusting the direction of the rotation axis A2 of the second roller 82 within the plane on which the waste tape 32 is disposed. Become.

  In the present embodiment, the second roller 82 and the rotation drive mechanism 84 are moved by the rotation drive mechanism 84, so that the second roller 82 and the rotation drive mechanism 84 move the moving head 90 and cut the waste tape 32. Also serves as. Thereby, size reduction of the tape cutting device 200 is realizable.

In the tape cutting device 200 according to the present embodiment, since it is not necessary to use a blade, the following advantageous effects can be obtained.
1. Since the blade is not used, it is safe.
2. There is no need for maintenance such as blade replacement, and the cost is low. Since there are some electronic parts such as ceramic products remaining in the waste tape 32, the cost of the blade is expensive in consideration of the strength of the blade, but this need not be considered in the present embodiment.
3. The cutting ability of the waste tape 32 is hardly lowered, and the tape cutting device 200 does not stop due to a trouble.
4). Even when the tape cutting device 200 cannot cut the waste tape 32, the waste tape 32 may be pulled like a cutting device using a blade to cause an accident of the tape feeder 100 or the component mounting device. Nor.
5. Since no blade rotation sound or the like is generated, the operation sound of the tape cutting device 200 is reduced.

  FIG. 11 is a schematic plan view of a tape cutting device according to another embodiment of the present invention. FIG. 12 is a side view of the tape cutting device 300 shown in FIG. In the following description, the description of the same members and functions of the tape cutting device 200 according to the embodiment shown in FIG.

  In the tape cutting device 300, the first roller 181 constituting a part of the roller mechanism 480 is configured as an endless belt having a flat portion 181a. The waste tape 32 is sandwiched between the flat portion 181a of the first roller 181 and the second roller 82, and the waste tape 32 is cut.

  According to the tape cutting device 300 according to the present embodiment, the contact area between the first roller 181 and the second roller 82 can be increased as compared with the tape cutting device 200. As a result, the posture of the waste tape is further stabilized, and the waste tape 32 can be reliably cut.

  FIG. 13 is a schematic view of a tape cutting device according to still another embodiment of the present invention.

  In the tape cutting device 400 according to the present embodiment, the second roller 82 of the roller mechanism 280 can be turned by the support base 83 about the rotation center axis 86 perpendicular to the rotation axis A2. It is supported. Typically, the rotation center shaft 86 is composed of a rotation shaft 86 connected or fixed to the support base 83, and the output shaft of the rotation motor 87 is connected to the rotation shaft 86 via a gear box or the like. It is connected. The rotation motor 87 or the like may be incorporated in the moving head 90 (see FIG. 8) or the like. The rotation motor 87 and the rotation shaft 86 constitute a rotation mechanism.

  The rotation center shaft 86 is provided so as to pass through substantially the center of the region 88 where the first roller 81 and the second roller 82 are in contact, but the rotation center shaft 86 does not necessarily pass through the center. May be.

  The operation of the tape cutting device 400 configured as described above will be described.

  For example, in the state shown in FIG. 13, the moving head 90 moves in the direction C1 along the X-axis direction as in the tape cutting device 200 according to the above embodiment, and the waste tape 32 is moved by the operation of the roller mechanism 280. It will be cut off. After the moving head 90 moves to the left end on the X axis and stops, the moving head 90 moves in the direction C2 opposite to the direction C1 by the reverse rotation driving of the motor of the rotation drive mechanism 84. At this time, as shown in FIG. 14, the driving of the rotation motor 87 is controlled so that the rotation direction of the second roller 82 is typically symmetric with respect to the Y axis as shown in FIG. The As a result, while the moving head 90 moves in the direction C2, the roller mechanism 80 applies the stress including the component in the direction A3 to the waste tape 32 to cut the waste tape 32.

  In this case, the control of the rotation drive mechanism 84 and the drive control of the rotation motor 87 may be performed by a control unit (not shown). For example, the control unit acquires a signal corresponding to the position of the moving head 90, and the control unit controls driving of the rotation motor 87 based on the acquired position signal of the moving head 90.

  Alternatively, the control of the rotation drive mechanism 84 or the drive control of the rotation motor 87 may be performed manually by the operator. The position signal of the moving head 90 can be obtained by a sensor that detects a rotation angle, such as a rotary encoder, provided in the rotation drive mechanism 84 that drives the second roller 82.

  As the mechanism for changing the angle of the second roller 82, the rotation motor 87 has been described as an example, but a drive mechanism such as another actuator or an air cylinder may be used.

  Of course, the rotation direction of the pressing roller 72 also changes depending on one of the moving directions C1 and C2 of the moving head 90.

  In the tape cutting device 400 according to the present embodiment, the second roller 82 can be rotated in accordance with the reciprocating movement of the moving head 90. Therefore, regardless of which direction the moving head 90 moves, stress in a predetermined direction (A1 and A3) can be applied to the waste tape 32, and the processing efficiency of cutting can be improved.

  FIG. 15 is a schematic view of a tape cutting device according to still another embodiment of the present invention.

  In the tape cutting device 500 according to the present embodiment, the rotation center shaft 89 of the second roller 82 of the roller mechanism 380 is displaced from the center of the region 88 where the first roller 81 and the second roller 82 are in contact with each other. It is provided so that it may pass through. Typically, the rotation center shaft 89 is constituted by a rotation shaft, and the rotation shaft 89 is connected or fixed to the support base 183. The rotating shaft 89 is provided on the upstream side of the waste tape 32, but is not limited to this position, and may be on the downstream side of the waste tape.

  The first roller 81 is configured to rotate only in the direction in which the waste tape 32 is sent out in the Y-axis direction downward in FIG. For example, a structure such as a ratchet mechanism that restricts the rotation of the first roller 81 in the direction opposite to the feeding direction may be provided. Such a structure of the first roller 81 can also be applied to the first roller 81 of the tape cutting devices 200, 300, and 400 according to the above embodiments.

  Since the rotation center shaft 89 of the second roller 82 is displaced from the center of the region 88, the tape cutting device 500 operates as follows.

  In the state shown in FIG. 15, the first and second rollers 81 and 82 are rotated by driving the motor of the rotation drive mechanism 84, and the waste tape 32 is cut while the moving head 90 moves in the direction C1. , Stop at a predetermined position.

  When the moving head 90 is stopped, the motor of the rotation drive mechanism 84 is driven in the reverse rotation, whereby the second roller 82 is rotated by the frictional force between the first and second rollers 81 and 82. It automatically rotates around 89 (see FIG. 16). That is, since the reverse rotation of the first roller 81 is restricted as described above, the second roller 82 rotates automatically and rotates around the rotation center shaft 89 using the friction force. Move. The second roller 82 stops rotating when the second roller 82 is in a predetermined direction A3.

  When the second roller 82 rotates in the predetermined direction A3, the moving head 90 starts moving in the direction C2 by driving the motor of the rotation driving mechanism 84.

  The second roller 82 (support base 83) only needs to have a structure that rotates only between the predetermined angles A1 to A3. For example, a stopper member 99 or the like that restricts the movement of the support base 83 may be provided on the moving head 90. Alternatively, the rotation restriction of the second roller 82 may be realized by the structure of the rotation shaft 89 and its bearing.

  According to the tape cutting device 500 according to the present embodiment, it is not necessary to provide a separate drive mechanism for rotating the second roller 82, and the tape cutting device 500 can be downsized. .

  Embodiments according to the present invention are not limited to the embodiments described above, and other various embodiments are conceivable.

  In each of the above-described embodiments, the mode in which the second roller 82 is driven has been described as an example of a mechanism that rotationally drives the first and second rollers 81 and 82. However, a mode in which only the first roller 81 is driven or a mode in which both are driven is also conceivable.

  In that case, the tape cutting device 200, 300, 400, or 500 (hereinafter referred to as the tape cutting device 200 or the like) controls the rotational speed of the first roller 81 or the second roller 82. May be provided. Alternatively, the tape cutting device 200 or the like may include a rotation angle control unit that controls a rotation angle about the rotation center axis 86 (or 89) of the second roller 82. Thereby, for example, according to the type of the carrier tape 1, the speed of the moving head 90 and the magnitude of the stress applied to the waste tape 32 can be controlled.

  In the said embodiment, as shown in FIG.1 and FIG.3, the tape cutting device 200 grade | etc., Was set as the structure provided in the lower part of the tape feeder arrangement | positioning part 60. FIG. However, as long as there is a structure in which the waste tape 32 discharged from the tape feeder 100 is supplied to a predetermined position, the tape cutting device 200 and the like may be arranged at any position.

  In the above embodiment, a plurality of tape feeders 100 are arranged in the tape feeder arrangement unit 60, and the moving head 90 of the tape cutting device moves in the X-axis direction, so that each waste tape discharged from these tape feeders 100 is used. The form in which 32 is cut is shown. However, for example, the pressing roller 72 does not move, the movement of the waste tape 32 is restricted by simply pinching or engaging the waste tape 32, and the second roller 82 of the roller mechanism 80 moves in the X-axis direction. A type that does not move is also conceivable. That is, this is a type in which one waste tape 32 is cut. In that case, for example, the first and second rollers 82 may be configured to have the same structure and the rotation shafts in the same direction so that the second roller 82 does not move.

  A tape cutting device in which the tape cutting device 300 shown in FIG. 11 and the tape cutting device 400 (see FIG. 13) or the tape cutting device 500 (see FIG. 15) are combined is also conceivable.

It is a front view which shows the component mounting apparatus which concerns on one embodiment of this invention. It is the top view which fractured | ruptured a part of component mounting apparatus. It is a side view which shows the component mounting apparatus. It is a typical disassembled perspective view which shows a tape feeder. (A) is a perspective view showing a reel on which a carrier tape is wound. (B) is sectional drawing which shows a carrier tape. It is a perspective view which shows the front-end side of the chassis of a tape feeder. 1 is a schematic plan view of a tape cutting device according to an embodiment of the present invention. It is a side view of the tape cutting device shown in FIG. It is a figure which shows one Embodiment of a pressing roller. It is a figure which shows a mode when a waste tape is cut | disconnected by a roller mechanism. It is a typical top view of the tape cutting device concerning other embodiments of the present invention. It is a side view of the tape cutting device shown in FIG. It is a typical figure of the tape cutting device which concerns on another embodiment of this invention. In FIG. 13, it is a figure which shows the state of a 2nd roller when a moving head moves to a reverse direction. It is a typical figure of the tape cutting device which concerns on another embodiment of this invention. In FIG. 14, it is a figure which shows the state of a 2nd roller when a moving head moves to a reverse direction.

Explanation of symbols

A1, A3 ... direction (first direction)
A2 ... Rotating shaft 1 ... Carrier tape 10 ... Component mounting device 32 ... Waste tape 50 ... Mounting mechanism 70 ... Regulating mechanism 71 ... Roller base 72 ... Pressing roller 72a ... Elastic part 80, 280, 380, 480 ... Roller mechanism 81,181 ... 1st roller 82 ... 2nd roller 84 ... Rotation drive mechanism 86, 89 ... Rotation center axis (rotation shaft)
88 ... Area 89 ... Rotation central axis 89 ... Rotation shaft 90 ... Moving head 100 ... Tape feeder 200, 300, 400, 500 ... Tape cutting device

Claims (10)

A tape cutting device for cutting a tape capable of accommodating electronic components,
A regulation mechanism for regulating movement of the tape;
A first roller having a pair of rollers sandwiching the tape, wherein the tape is disposed in a plane when the movement of the tape is restricted by the restriction mechanism and is different from a length direction of the tape; A tape cutting device comprising: a roller mechanism that rotationally drives the pair of rollers so as to apply a stress including a component in the direction to the tape. The tape cutting device according to claim 1,
The pair of rollers is
A first roller;
A tape cutting device comprising: a second roller disposed to face the first roller and rotatable in the first direction. The tape cutting device according to claim 2,
The regulation mechanism is
Roller base,
A pressing roller that presses the tape against the roller base;
The tape cutting device
A moving head that is movable in a second direction different from the first direction and different from the length direction of the tape and rotatably supports the pressing roller and the second roller. The tape cutting device further comprising: The tape cutting device according to claim 2,
The tape cutting device according to claim 1, wherein the first roller rotates the tape in such a direction as to feed the tape in a length direction of the tape. The tape cutting device according to claim 3,
The roller mechanism is
A tape cutting device comprising a rotation drive mechanism for rotating the second roller. The tape cutting device according to claim 3,
The tape pressing device, wherein the pressing roller has an elastic portion for pressing the tape. The tape cutting device according to claim 3,
A rotation mechanism having a rotation center axis perpendicular to a rotation axis for rotating the second roller, and rotating the second roller about the rotation center axis; Tape cutting device. The tape cutting device according to claim 7,
The tape cutting device according to claim 1, wherein the rotation center axis is provided so as to pass through a position shifted from a center of a region of the second roller contacting the first roller. A component mounting apparatus for picking up the electronic component from a tape capable of accommodating the electronic component supplied from the component supply device and mounting the electronic component on a circuit board,
A mounting mechanism for mounting the electronic component on the circuit board;
A regulation mechanism that regulates the movement of the tape discharged from the component supply device; and a pair of rollers that sandwich the tape, and the tape is disposed when the movement of the tape is regulated by the regulation mechanism. And a roller mechanism that rotationally drives the pair of rollers so as to apply stress to the tape in a direction that is in a plane that is different from a length direction of the tape. A component mounting apparatus comprising the apparatus. Regulates the movement of tape that can accommodate electronic components,
When the movement of the tape is restricted, stress including a component in a first direction which is an in-plane direction in which the tape is arranged and is different from the length direction of the tape is applied to the tape. Tape cutting method.

Images