JP2009064929A - Truck for tape feeder replacement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a truck for tape feeder replacement that can shorten the operation time needed for installation and detachment of a tape feeder and can improve the throughput of mounting of component by a component-mounting device. <P>SOLUTION: The truck 20 for tape feeder replacement that installs and detaches a plurality of tape feeders 9 mounted on a truck body part 22, which can be moved freely by operating a handle 21, in and from the component-mounting device 1, by coupling and decoupling the truck body part 22 to and from the component mounting device 1, is equipped with a tape-cutting device 23 which cuts an empty tape 11a, discharged after the each tape feeder 9 pitch-feeds a tape 11 that holds a component P, to supply the component P to the component-mounting device, and the empty tape 11a discharged from each tape feeder 9 is sent to the tape-cutting device 23 without going directly via the component-mounting device 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a tape feeder replacement carriage that installs and removes a tape feeder from a component mounting apparatus.

  The tape feeder is attached to a predetermined position of the component mounting apparatus, feeds the component supply tape, and supplies the component to the pickup position of the transfer head. The so-called empty tape that has finished supplying the parts is cut by the opening / closing operation of two cutting blades of the tape cutting device provided below the tape feeder, and the inside of the box-shaped tape collecting unit disposed below the tape cutting device. To be recovered.

Since a plurality of such tape feeders are usually mounted on the component mounting apparatus, the mounting and removing operations are troublesome and labor intensive. For this reason, a tape feeder replacement cart that can collectively install a plurality of tape feeders in a component mounting apparatus is also used. This tape feeder replacement cart is provided with a feeder base on which a plurality of tape feeders are mounted on a vehicle body portion that is movable by operating a handle, and by coupling and separating the vehicle body portion from a component mounting device, A plurality of tape feeders mounted on the feeder base can be collectively installed and removed from the component mounting apparatus. When the tape feeder replacement cart is coupled to the component mounting device, the tape cutting device provided in the component mounting device enters the space below the feeder base of the tape feeder replacement cart, and the tape discharged from the tape feeder is on the tape feeder side. Or it guides in a tape cutting device by the tape guide member provided in the component mounting apparatus side (patent document 1).
Japanese Patent No. 3816694

  However, as described above, when the tape discharged from the tape feeder passes through the component mounting device side member (tape cutting device), the tape drawn from each tape feeder is introduced into the tape cutting device. The work can be performed only after the tape feeder is attached to the component mounting apparatus (that is, after the carriage for exchanging the tape feeder is coupled to the component mounting apparatus), and the tape feeder is removed from the component mounting apparatus (that is, the tape feeder). The operation of separating the replacement carriage from the component mounting apparatus could not be performed unless the empty tape extending from each tape feeder was pulled out of the tape cutting apparatus. For this reason, it takes time to install and remove the tape feeder, and there is a problem that the throughput of component mounting by the component mounting apparatus is reduced accordingly.

  Therefore, an object of the present invention is to provide a tape feeder replacement carriage that can shorten the work time required for installing and removing a tape feeder and can improve the throughput of component mounting by the component mounting apparatus.

The tape feeder replacement cart according to claim 1 is configured to mount a plurality of tape feeders mounted on the vehicle body unit by coupling and separating a vehicle body unit movable by a handle operation to and from a component mounting apparatus. Tape feeder replacement carriage that is installed and removed from the apparatus, and each tape feeder pitches the tape holding the parts and supplies the parts to the component mounting apparatus, and then cuts the empty tape to be discharged. The empty tape discharged from each tape feeder is directly sent to the tape cutting device without going through the component mounting device.

  The tape feeder replacement cart according to claim 2 is the tape feeder replacement cart according to claim 1, wherein a tape collecting unit that collects an empty tape cut by the tape cutting device is disposed below the tape cutting device. Prepared.

  The tape feeder replacement carriage of the present invention is provided with a tape cutting device in its body, and the empty tape discharged from each tape feeder is sent directly to the tape cutting device without passing through the component mounting device side and cut. Therefore, the work of introducing the tape drawn from each tape feeder into the tape cutting device is performed before the tape feeder is installed in the component mounting device, that is, before the tape feeder replacement carriage is coupled to the component mounting device. In addition, the tape feeder replacement carriage can be separated from the component mounting device and removed from the component mounting device without pulling out the empty tape extending from each tape feeder from the tape cutting device. be able to. For this reason, the work time required for installation and removal of the tape feeder can be shortened, and accordingly, the throughput of component mounting by the component mounting apparatus can be improved.

(Embodiment 1)
FIG. 1 is a plan view of a component mounting apparatus according to Embodiment 1 of the present invention, FIG. 2 is a side view of a part of the tape feeder replacement carriage and component mounting apparatus according to Embodiment 1 of the present invention, and FIG. FIG. 4 is an explanatory diagram of a pneumatic circuit provided in the tape feeder replacement carriage according to the first embodiment of the present invention, and FIG. 4 is a partial enlarged cross-sectional view of the tape feeder replacement carriage according to the first embodiment.

  1 and 2, the base 2 of the component mounting apparatus 1 is provided with a board transport path 3 extending in one direction (X-axis direction) in a horizontal plane. Two parallel Y-axis tables 4 extending in a direction (Y-axis direction) in a horizontal plane orthogonal to the conveyance path 3 are provided. Two parallel X-axis tables 5 are provided above the two Y-axis tables 4, and each X-axis table 5 is supported by the two Y-axis tables 4 at both ends and is in the Y-axis direction. It has become freely movable. Each X-axis table 5 is provided with a moving stage 6 that is movable along the X-axis table 5, and each moving stage 6 is provided with a head portion 7. Each head portion 7 is provided with a nozzle 8 extending downward in the vertical direction (Z-axis direction) and movable around the Z-axis.

  A plurality of tape feeders 9 are installed on both sides of the base 2 so as to project outward in the Y-axis direction. Each tape feeder 9 intermittently feeds a tape 11 drawn from a reel 10 (this reel 10 is provided in a tape feeder replacement carriage 20 described later. See FIG. 2), and is included in the tape 11 at regular intervals. The component (electronic component) P is supplied to a predetermined pickup position on the tape feeder 9.

  Each head unit 7 moves in a horizontal plane by movement of the X-axis table 5 in the Y-axis direction and movement of the moving stage 6 in the X-axis direction, and the component P supplied to the pickup position by the tape feeder 9 is transferred to the nozzle 8. Pick up by vacuum suction. Then, after the picked-up component P is recognized by the component camera 12 provided on the base 2, a predetermined position correction operation is performed and mounted on the substrate 13 positioned on the substrate conveyance path 3.

Here, the plurality of tape feeders 9 that supply the component P to the component mounting apparatus 1 are mounted on a tape feeder replacement carriage 20 that is movable with respect to the component mounting apparatus 1. The plurality of tape feeders 9 can be collectively installed and removed from the component mounting apparatus 1 by being coupled to and separated from the apparatus 1. Hereinafter, the configuration of the tape feeder replacement carriage 20 will be described with reference to FIGS. 2, 3, and 4.

  2, the tape feeder replacement carriage 20 is provided on the vehicle body portion 22 and the vehicle body portion 22 that can be moved by pushing and pulling the handle 21 on the left and right (the direction perpendicular to the paper surface in FIG. 2 is the left-right direction). A tape cutting device 23 and a tape collecting unit 24 are provided.

  The vehicle body portion 22 includes a base portion 26 having a plurality of wheels 25, a support column 27 extending upward from the base portion 26, and a feeder base 28 provided horizontally at the upper end of the support column 27. 21 is attached.

  The feeder base 28 is a flat plate-like member to which a plurality of tape feeders 9 are mounted in parallel in the left-right direction, and is guided by a plurality of column-shaped elevating guides 29 extending upward from the column 27 so as to be adjustable up and down. ing.

  3 and 4, the tape cutting device 23 is configured so that each tape feeder 9 discharges a tape 11 (a so-called empty tape, indicated by reference numeral 11 a in FIG. 2) with two cutting blades (a fixed blade 41 and a later-described blade). The movable blade 44 is cut by an opening / closing operation, and is formed in a box-like base portion 40 fixed to the front of the column 27 of the vehicle body portion 22 (toward the component mounting apparatus 1) and an upper opening 40 a of the base portion 40. In addition to a fixed blade 41 that is provided facing, a slider 43 that is guided by a horizontally extending guide member 42 and is relatively movable in the horizontal direction with respect to the fixed blade 41, and a movable blade 44 that is attached to the slider 43. , A pneumatic actuator 45 having a piston rod 45a coupled to the slider 43, a pneumatic circuit 47 for controlling the operation of the pneumatic actuator 45, and a control of the pneumatic circuit 47 It has a location 48. The tape recovery unit 24 is a box-like member that opens upward, and is provided below the tape cutting device 23.

  In order to install each tape feeder 9 in the component mounting apparatus 1, the tape feeder replacement carriage 20 having a plurality of tape feeders 9 mounted on the feeder base 28 is moved by operating the handle 21, so that the base of the component mounting apparatus 1 is installed. However, when the tape feeder replacement carriage 20 is joined to the base 2, a carriage-side connector 30 (first connector) provided on the front surface of the base portion 40 is provided on the base 2. The mounting device side connector 15 (second connector) thus formed is fitted and connected in the horizontal direction.

  The cart-side connector 30 is a floating connector that can move in a plane perpendicular to the fitting direction with the mounting device-side connector 15. The mounting device-side connector 15 receives the cart-side connector 30 to assist the fitting. A guide 15a is provided (FIG. 3). For this reason, even when the connectors 30 and 15 are slightly misaligned when the tape feeder replacement carriage 20 is positioned with respect to the base 2, when the tape feeder replacement carriage 20 is coupled to the base 2. Since the cart side connector 30 is drawn into the mounting apparatus side connector 15 side by the fitting guide 15a, both the connectors 30 and 15 can be fitted without any trouble.

  The component mounting apparatus 1 incorporates an air pressure generating unit 16 and a power supply unit 17, and these air pressure generating unit 16 and power supply unit 17 are connected via a pipe 18 and a wiring 19 disposed in the component mounting apparatus 1. The mounting device side connector 15 is connected. For this reason, the carriage side connector 30 and the mounting apparatus side connector 15 are fitted, so that the air pressure generating unit 16 and the power supply unit 17 on the component mounting apparatus 1 side can be used on the tape feeder replacement carriage 20 side. become. Specifically, the pneumatic actuator 45 can be used with the pneumatic generation unit 16 as an pneumatic source, and the control device 48 can be used with the power supply unit 17 as a power source.

  In FIG. 4, the pneumatic actuator 45 includes a cap side cylinder chamber 45b and a head side cylinder chamber 45c. When pressurized air is supplied to the cap side cylinder chamber 45b, the piston rod 45a is advanced to move the movable blade 44 to the fixed blade. When the compressed air is supplied to the head-side cylinder chamber 45c, the piston rod 45a is moved backward to move the movable blade 44 to the fixed blade 41 (closed operation of the two cutting blades, arrow A in FIG. 4). (The opening operation of the two cutting blades, arrow B in FIG. 4).

  In FIG. 4, the pneumatic circuit 47 includes a first pipe 51, a second pipe 52, and a third pipe 53 in addition to the control valve 49 and the check valve 50. The control valve 49 is a two-position two-way electromagnetic pilot valve. When no spool drive signal is output from the control device 48, the spool (not shown) is moved to the normal position (position shown in FIG. 4) by the action of the return spring 49s. To position. On the other hand, when the spool drive signal is output from the control device 48, the spool moves against the urging force of the return spring 49s by the pilot pressure generated in response to the spool drive signal, and is positioned at the switching position.

  The first pipe line 51 is a pipe line connecting the truck side connector 30 and “the pressure port 49p of the control valve 49”, and the second pipe line 52 is “the first cylinder port 49a of the control valve 49” and “ This is a pipe line connecting between the first ports 46a connected to the cap side cylinder chamber 45b of the pneumatic actuator 45. The third pipe 53 is a pipe connecting between the “second cylinder port 49b of the control valve 49” and the “second port 46b connected to the head side cylinder chamber 45c of the pneumatic actuator 45”.

  The check valve 50 is interposed in the first pipe line 51. When the pressure on the cart side connector 30 side is higher than the pressure on the pneumatic actuator 45 side, the first pipe line 51 is opened and the cart side connector 30 side is opened. When the pressure becomes lower than the pressure on the pneumatic actuator 45 side, the first pipe 51 is closed.

  In a state where the spool of the control valve 49 is located at the normal position, the pressure port 49p and the first cylinder port 49a communicate with each other, and the second cylinder port 49b and the first tank port 49c communicate with each other. At this time, the compressed air supplied from the pneumatic pressure generating unit 16 via the cart side connector 30 is supplied from the first pipe 51 → the control valve 49 (pressure port 49p → first cylinder port 49a) → second pipe 52 → empty. The piston rod 45a is advanced by being supplied to the cap side cylinder chamber 45b of the pressure actuator 45, and the two cutting blades are closed. On the other hand, when the spool of the control valve 49 is located at the switching position, the pressure port 49p and the second cylinder port 49b communicate with each other, and the first cylinder port 49a and the second tank port 49d communicate with each other. At this time, the pressure air supplied from the pneumatic pressure generating unit 16 via the cart side connector 30 is the first pipe 51 → the control valve 49 (pressure port 49p → second cylinder port 49b) → the third pipe 53 → empty. The piston rod 45a is retracted by being supplied to the head side cylinder chamber 45c of the pressure actuator 45, and the two cutting blades are opened.

  The tape feeder 9 feeds out the tape 11 and supplies the component P to the pickup position during the component mounting process by the component mounting apparatus 1, while discharging the empty tape 11 a after supplying the component to the lower side of the feeder base 28. The empty tape 11a after the component supply discharged from the tape feeder 9 is directly erected on the upper surface of the base portion 40 of the tape cutting device 23 and does not go through the member on the component mounting device 1 side, and opens upward. It is guided by the guide member 54, enters the base portion 40 from the upper opening 40a, and is sent between the fixed blade 41 and the movable blade 44 (see also FIG. 4).

Here, while the tape 11 is fed out from the tape feeder 9 and the component P is supplied to the component mounting apparatus 1, the control device 48 controls the control valve 49 of the pneumatic circuit 47 to control the two cutting blades. Since the closing operation and the opening operation are repeatedly performed, and the tape feeder 9 feeds the tape 11 to the outside of the tape feeder 9 (below the feeder base 28) in an intermittent operation, the tape feeder 9 is discharged from the tape feeder 9. The empty tape 11a that is guided by the tape guide member 54 and enters the base portion 40 through the upper opening 40a is cut by the tape cutting device 23 every time the fixed length advances, and the cut empty tape 11a having the fixed length is It is discharged from the lower opening 40 b provided at the lower part of the base part 40 to the outside of the base part 40 and is collected by the tape collecting part 24.

  On the other hand, by separating the tape feeder replacement carriage 20 from the component mounting apparatus 1 from the state in which the tape feeder replacement carriage 20 is coupled to the component mounting apparatus 1 in this way, each tape feeder 9 is connected to the component mounting apparatus 1. Can be removed from. At this time, since the cart-side connector 30 is separated from the mounting device-side connector 15, the tape feeder replacement cart 20 can no longer use the air pressure generating unit 16 and the power supply unit 17 provided on the component mounting device 1 side. However, when the cart side connector 30 is separated from the mounting device side connector 15, the pipe line (first pipe line 51) that has been connected between the air pressure generating unit 16 and the control valve 49 is released to the atmosphere. Since electricity is not supplied to the control device 48 and the control valve 49 is not controlled, the spool of the control valve 49 is positioned at the normal position by the action of the return spring 49s.

  In this way, the pipe line (first pipe line 51) between the air pressure generation unit 16 that is the air pressure source and the control valve 49 is opened to the atmosphere, and the supply of compressed air to the air pressure actuator 45 is stopped. When the spool is located at the normal position, the check valve 50 interposed in the first pipe 51 closes the first pipe 51, so that pressure is generated between the pneumatic actuator 45 and the check valve 50. The control valve 49 is positioned at the normal position to communicate the first pipe 51 with the first port 46a of the pneumatic actuator 45 and to communicate the second port 46b of the pneumatic actuator 45 with the first tank port 49c. Since the air is released, the pressure generated between the pneumatic actuator 45 and the check valve 50 acts on the cap-side cylinder chamber 45b from the first port 46a of the pneumatic actuator 45. As a result, the pneumatic actuator 45 operates to advance the piston rod 45a, so that the movable blade 44 moves to the fixed blade 41 side and the two cutting blades (the fixed blade 41 and the movable blade 44) are closed. Become.

  As described above, the tape cutting device 23 included in the tape feeder replacement carriage 20 according to the present embodiment closes the two cutting blades when the pneumatic supply from the pneumatic generation unit 16 to the pneumatic actuator 45 is stopped. Since the closing blade means is provided, it is possible to prevent foreign matter from entering between the two cutting blades (the fixed blade 41 and the movable blade 44) when the tape cutting device 23 is not used, and the tape cutting device 23 can be prevented from malfunctioning. There is no risk of it happening.

  Here, the closing blade means includes a pneumatic actuator 45, a control valve 49, and a check valve 50 interposed in a first pipe 51 that is a pipe between the pneumatic generator 16 and the control valve 49. Thus, when the first pipe 51 is opened to the atmosphere and the supply of compressed air from the air pressure generating unit 16 to the pneumatic actuator 45 is stopped, the check valve 50 closes the first pipe 51 to reduce the air pressure. A pressure is generated between the actuator 45 and the check valve 50, and the control valve 49 operates the pneumatic actuator 45 by the pressure generated between the pneumatic actuator 45 and the check valve 50 to cut the two sheets. It refers to a mechanism for closing the blades (the fixed blade 41 and the movable blade 44).

Further, the tape feeder replacement carriage 20 in the present embodiment is provided with a tape cutting device 23 in the vehicle body portion 22, and the empty tape 11 a discharged from each tape feeder 9 does not pass through the component mounting device 1. Since the tape 11 is sent directly to the tape cutting device 23 and cut, the work of introducing the tape 11 drawn from each tape feeder 9 into the tape cutting device 23 is performed before the tape feeder 9 is installed in the component mounting device 1. In other words, the tape feeder replacement carriage 20 can be performed in advance before being coupled to the component mounting apparatus 1, and the tape feeder replacement can be performed without removing the empty tape 11 a extending from each tape feeder 9 from the tape cutting apparatus 23. The carriage 20 can be separated from the component mounting apparatus 1 and each tape feeder 9 can be removed from the component mounting apparatus 1. Kill. For this reason, the work time required for installation and removal of the tape feeder 9 can be shortened, and the component mounting throughput by the component mounting apparatus 1 can be improved accordingly.

(Embodiment 2)
FIG. 5 is an explanatory diagram of a pneumatic circuit of a tape feeder replacement carriage provided in the component mounting apparatus according to Embodiment 2 of the present invention. The pneumatic circuit 47a of the second embodiment is different from the pneumatic circuit 47 of the first embodiment in that a check valve 50 is provided in the first pipe line 51 like the pneumatic circuit 47 of the first embodiment. The biasing spring 55 that biases one of the two cutting blades toward the other (here, the movable blade 44 approaches the fixed blade 41) is not provided.

  In FIG. 5, when the cart side connector 30 is separated from the mounting device side connector 15, the first pipe line 51 is opened to the atmosphere, and the spool of the control valve 49 is positioned at the normal position by the action of the return spring 49s. At this time, the control valve 49 opens the first port 46 a of the pneumatic actuator 45 to the atmosphere via the control valve 49 and the first pipe 51, and the second port 46 b of the pneumatic actuator 45 connects to the first tank port of the control valve 49. Since the air is released from 49c, the piston rod 45a of the pneumatic actuator 45 can be freely moved by an external force. That is, the two cutting blades can be freely opened and closed by an external force. For this reason, the movable blade 44 is urged by the urging spring 55 and moves to the fixed blade 41 side, and the two cutting blades composed of the fixed blade 41 and the movable blade 44 are closed.

  Also in the configuration of the second embodiment, the same effect as that of the first embodiment described above can be obtained. In the case of the second embodiment, the closing blade means that the pneumatic actuator 45, the control valve 49, and one of the two cutting blades are moved closer to the other (here, the movable blade 44 is moved closer to the fixed blade 41). When the pressure supply from the air pressure generating unit 16 to the air pressure actuator 45 is stopped when the first pipe 51 is opened to the atmosphere, the control valve 49 is air-operated. Each port (first port 46a and second port 46b) of the actuator 45 is opened to the atmosphere so that the two cutting blades can be freely opened and closed, and the urging spring 55 causes one of the cutting blades (movable blade 44) to move. It refers to a mechanism that closes the two cutting blades by biasing them closer to the other cutting blade (fixed blade 41).

(Embodiment 3)
In the third embodiment, the urging spring 55 provided in the second embodiment is added to the configuration of the first embodiment. In such a configuration, as in the case of the first embodiment, the inside of the pipe line (first pipe 51) between the air pressure generation unit 16 and the control valve 49 is opened to the atmosphere, and the air pressure generation unit 16 is emptied. When the pneumatic supply to the pressure actuator 45 is stopped, not only the two cutting blades (the fixed blade 41 and the movable blade 44) are closed, but then the pressure in the cap-side cylinder chamber 45b of the pneumatic actuator 45 is temporarily assumed. Even when the check valve 50 is reduced to the atmospheric pressure level and the check valve 50 does not perform the closing function in the first pipe 51, the two cutting blades are reliably closed by the action of the biasing spring 55. It can be kept in the state.

Although the embodiment of the present invention has been described so far, the scope of the present invention is not limited to that shown in the above-described embodiment. For example, in the above-described embodiment, the pneumatic actuator 45 is a pneumatic cylinder. However, this is not limited to the pneumatic cylinder, and the empty tape 11 a discharged from the tape feeder 9 is controlled by the control valve 49. Operates in response to pressure supply from the pressure source (pneumatic pressure generating unit 16 in the above example), thereby opening and closing the two cutting blades (in the above example, the fixed blade 41 and the movable blade 44) and cutting. Any other pneumatic actuator (for example, a pneumatic motor) may be used. Furthermore, it is not limited to pneumatic pressure, and other general actuators such as those using an electric motor may be used.

  In the above-described embodiment, one of the two cutting blades provided in the tape cutting device 23 is a fixed blade 41 fixed to the base portion 40, and the other is a movable blade 44 provided movably with respect to the fixed blade 41. However, the two cutting blades are not limited to one of which is a fixed blade and the other is a movable blade, and both of them move with each other to open and close (both are movable blades). There may be.

  The work time required for installation and removal of the tape feeder can be shortened, and the throughput of component mounting by the component mounting apparatus can be improved.

The top view of the component mounting apparatus in Embodiment 1 of this invention Side view of part of tape feeder replacement carriage and component mounting apparatus according to Embodiment 1 of the present invention The partial expanded sectional view of the trolley | bogie for tape feeder replacement | exchange in Embodiment 1 of this invention Explanatory drawing of the pneumatic circuit with which the trolley | bogie for tape feeder replacement | exchange in Embodiment 1 of this invention is provided Explanatory drawing of the pneumatic circuit of the tape feeder exchange trolley | bogie with which the component mounting apparatus in Embodiment 2 of this invention is provided.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Component mounting apparatus 9 Tape feeder 11 Tape 11a Empty tape 20 Cart for replacing tape feeder 21 Handle 22 Car body part 23 Tape cutting device 24 Tape recovery part P part

Claims (2)

  A tape feeder replacement carriage that installs and removes a plurality of tape feeders mounted on the vehicle body portion from the component mounting device by coupling and separating a vehicle body portion that is movable by operating a handle to and from the component mounting device. Each tape feeder includes a tape cutting device for cutting the empty tape to be discharged after pitch feeding the tape holding the component and supplying the component to the component mounting apparatus, and the empty tape discharged from each tape feeder A tape feeder replacement cart characterized by being sent directly to a tape cutting device without going through a component mounting device.   2. The tape feeder replacement carriage according to claim 1, further comprising a tape recovery unit for recovering an empty tape cut by the tape cutting device, below the tape cutting device.

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