JP2014093333A - Electronic component packaging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic component packaging apparatus capable of reducing work for a worker to operate the apparatus and feed a storage tape into a component supply unit when starting operating the electronic component packaging apparatus, and reliably feeding the storage tape to each component supply unit when starting the operation.SOLUTION: The electronic component packaging apparatus comprises: a component supply unit 5 including a sprocket 23 for feeding a storage tape CX, the front end of which is positioned at an upstream side in a feeding direction of the storage tape CX, from the upstream side to a downstream side, and a motor 17 for driving the sprocket; and a control device 70 which outputs a driving command of the motor in response to operation of a start switch SW.

Description

  The present invention includes a plurality of component supply units that supply electronic components stored in a storage recess of a storage tape to a component extraction position by movement of the storage tape, and take out the electronic equipment supplied from these component supply units. It is related with the electronic component mounting apparatus hold | maintained and mounted | worn on a board | substrate.

  In the conventional component supply unit, for example, as disclosed in Patent Document 1, an electronic component is surely taken out. Then, a new storage tape was loaded in the component supply unit.

  In the electronic component mounting apparatus to which the electronic component supply cart on which the plurality of component supply units are mounted is connected, the mounting head takes out the electronic components from the plurality of component supply units and moves to the mounting position of the substrate. Attach electronic components to

JP 2011-216793 A

  In the electronic component mounting apparatus described above, when the storage tape supplied with the electronic component by the electronic component supply unit is new, the operation start switch of the electronic component mounting apparatus is operated and the production operation of the substrate is started. The operator sets a new storage tape in the component supply unit, operates the storage tape feed switch provided in the component supply unit, pulls in the storage tape, and sets the storage recess where the leading electronic component is stored to the component extraction position. It was reaching. As a result, especially when there are a large number of component supply units that supply electronic components using new storage tape, the amount of work that the operator operates for each component supply unit and draws in the storage tape for each component supply unit. There is a risk that it will take a long time to complete the work, delaying the start of the operation of the electronic component mounting device, and if the operator makes a mistake or forgets the operation and the storage tape is not pulled in or until the parts are removed. There is a possibility that a component supply unit that has not reached has occurred.

  Therefore, the present invention can reduce the work of the operator operating the electronic tape and pulling the storage tape into the component supply unit when starting the operation, and each component supply unit when starting the operation. It is an object of the present invention to provide an electronic component mounting apparatus that can reliably feed a storage tape.

  For this reason, the first invention is an electronic component mounting apparatus comprising a plurality of component supply units that intermittently move a storage tape and supply an electronic component stored in a storage recess of the storage tape to a component extraction position. In, a component supply unit including a sprocket that feeds the storage tape, the tip of which is located upstream in the feeding direction of the storage tape, from the upstream side to the downstream side, and a motor that drives the sprocket, and by operating a switch, And a control device that outputs a drive command for the motor.

  According to a second aspect of the present invention, in the electronic component mounting apparatus according to the first aspect, the component supply unit includes a cutter that opens a top surface of the storage recess by cutting a cover tape covering the top surface of the storage recess. It is characterized by having.

  According to a third aspect of the present invention, in the electronic component mounting apparatus according to claim 2, the control device outputs a drive command for the motor provided in the component supply unit registered in mounting data. Features.

  According to the present invention, when the operation of the electronic component mounting apparatus is started, it is possible to reduce the work that the operator operates to pull the storage tape into the component supply unit and send it. On the other hand, it is possible to provide an electronic component mounting apparatus capable of reliably feeding the storage tape.

It is a top view of an electronic component mounting apparatus. It is a perspective view of a storage tape. FIG. 3A shows a storage tape for large parts, and FIG. 3A shows a storage tape for small parts. It is a schematic side view of a component supply unit. It is a schematic plan view of a component supply unit. It is a top view of a tape processing unit. It is a schematic side view explaining the mechanism of a 1st component dropping apparatus. It is a figure of the flowchart explaining the loading operation | movement of a storage tape when starting the mounting operation of the electronic component which concerns on this invention. It is a figure explaining the loading operation | movement of a storage tape. It is a figure explaining the loading operation | movement of a storage tape. It is a figure explaining the loading operation | movement of a storage tape. It is an explanatory view when the edge of a cutter hits the end face of a storage tape. It is an explanatory view of the state where the cover tape is peeled off by the cutter. It is explanatory drawing when the edge of a cutter hits the part slightly below the boundary of the cover tape and carrier tape of the end surface of a storage tape. It is a figure which shows an operation panel.

  Hereinafter, based on FIG. 1 which is a top view of the electronic component mounting apparatus 1, embodiment of this invention is described. First, a plurality of component supply devices 3A, 3B, 3C, and 3D are arranged in parallel on the front and rear portions of the electronic component mounting device 1 on the device main body 2 in four blocks.

  Each of the component supply devices 3A, 3B, 3C, and 3D includes a plurality of component supply units 5 arranged in parallel on a feeder base of a cart base that is a mounting base, and a printed circuit board having a tip on the component supply side as a substrate. When the cart base is properly attached to the apparatus main body 2, the power is supplied to the component supply unit 5 mounted on the cart base so as to face the conveyance path of P. When the connector is released and the handle is pulled, it can be moved by a caster provided on the lower surface.

  In addition, when the connection between the connectors connected to the power supply is released in order to remove the component supply unit 5 from the feeder base, the power supply to the component supply unit 5 is cut off, and this cut-off state is not illustrated. The control device can detect this, and conversely, when the component supply unit 5 is inserted and attached to the feeder base and the connectors are connected to each other, power is supplied to the component supply unit 5 and this supply state is determined. The control device can detect this.

  Each of the component supply devices 3A, 3B, 3C, and 3D is disposed so that the tip portion on the component supply side faces a component suction and extraction position that is a component extraction region of the mounting head 6.

  Between the front-side component supply devices 3B and 3D and the rear-side component supply devices 3A and 3C, a supply conveyor and a first positioning unit constituting the substrate transfer device 8 that transfers the printed circuit board P as a substrate An intermediate conveyor, a second positioning portion, and a discharge conveyor are provided.

  The supply conveyor conveys the printed circuit board P received from the upstream to the first positioning unit, and after mounting electronic components on the substrate P positioned by a positioning mechanism (not shown) in each positioning unit, conveys it to the intermediate conveyor, After the printed circuit board P received from the intermediate conveyor is positioned by the positioning mechanism in the second positioning portion and the electronic component is mounted, it is transported to the discharge conveyor and then transported to the downstream device.

  Each beam 10 that moves along the guide rail 9 by the Y-axis drive motor 11 in the Y direction is provided with a mounting head 6 that is moved by the X-axis drive motor 13 in the longitudinal direction, that is, in the X direction. Is provided with a suction nozzle 7 which is a plurality of component take-out tools. The mounting head 6 is equipped with a vertical axis drive motor 14 for moving the suction nozzle 7 up and down, and a θ-axis drive motor 15 for rotating around the vertical axis. Therefore, the suction nozzle 7 of the mounting head 6 can move in the X direction and the Y direction, can rotate about the vertical axis, and can move up and down.

  Reference numeral 4 denotes a substrate recognition camera for recognizing the position of the printed circuit board P, which is fixed to the mounting head 6 and images a positioning mark attached to the printed circuit board P. Reference numeral 12 denotes a component recognition camera that captures an image of the electronic component in order to recognize the position of the electronic component with respect to the suction nozzle 7 in terms of the XY direction and the rotation angle.

  The storage tape CX will be described with reference to FIG. 2 which is a perspective view of the storage tape CX. In this storage tape CX, an electronic component D is stored in a storage recess Cb which is an electronic component storage recess formed at predetermined intervals on the carrier tape Ca, and the cover tape Cc is covered with the carrier tape so as to cover the storage recess Cb. Bonded on Ca. The carrier tape Ca has feed holes Cd formed at predetermined intervals.

  Further, as shown in FIG. 3, the adhesive portion Ce of the cover tape Cc (the portion where the cover tape Cc is bonded (fused) and fixed to the left and right of the storage recess Cb) depends on the size of the electronic component to be loaded. Its position is different. That is, the storage tape CX shown in FIGS. 3A (the left part of FIG. 3) and (A) (the right part of FIG. 3) is a paper tape having a width of 8 mm, but FIG. The large component storage tape CX has a large storage recess Cb, so that the adhesive portion Ce applied along the direction of travel is located on the outer side, and FIG. 3 (a) shows the small component storage tape CX. And since the said storage recessed part Cb is also small, the adhesion part Ce is also located inside.

  Next, based on FIG. 4 which is a schematic side view of the component supply unit 5 and FIG. 5 which is a schematic plan view of the component supply unit 5, a new storage tape CX arranged side by side on the feeder base, for example, is inserted. The structure of the component supply unit 5 capable of automatically pulling in and sending it downstream, that is, automatic loading will be described. First, the component supply unit 5 introduces a storage tape CX wound around a storage tape reel (not shown) rotatably mounted on the component supply devices 3A, 3B, 3C, and 3D through a guide passage. (Tape introduction part).

  This tape introduction mechanism is a tape introduction drive source that is provided at the intermediate portion between a DC motor 17 that is an introduction motor provided with a gear 18 on its output shaft 16 and a rotary shaft 20 provided with a gear 19 that meshes with the gear 18. A worm wheel 22 that meshes with the provided worm gear 21 and a feed hole Cb formed on the storage tape CX pressed by the tape pressing member 24 from above is engaged with a tape feed tooth formed on the outer peripheral portion of the storage tape CX. The first sprocket 23 is configured to transmit. A first detection sensor 25 is a sensor for detecting the storage tape CX introduced into the component supply unit 5. The tape pressing member 24 is rotatable and includes a roller 24A that supports the storage tape CX.

  Reference numeral 27 denotes a second sprocket, and the second splot 27 is responsible for supplying the storage tape CX to the tape processing unit 28 described later. Reference numeral 29 denotes a third sprocket for moving the storage tape CX forward so as to cut open the cover tape Cc of the storage tape CX by a cutter 30 provided in the tape processing unit 28.

  4 is a servo motor. A belt 35 is stretched between a pulley provided on the output shaft 33 and a pulley provided on the rotary shaft 34, and when the servo motor 32 rotates forward, The rotating shaft 34 rotates via the output shaft 33 and the belt 35.

  Therefore, when the rotating shaft 34 rotates intermittently, the second sprocket 27 and the third sprocket 29 provided with the worm wheels 39 and 40 meshing with the worm gears 37 and 38 provided in the intermediate portion of the rotating shaft 34 are intermittently respectively provided. It will rotate. That is, when the feed shaft Cb formed in the outer peripheral portion of the second sprocket 27 and the third sprocket 29 meshes with the feed hole Cb formed in the storage tape CX pressed from above by the suppressor 43, the rotating shaft 34 rotates. The second sprocket 27 and the third sprocket 29 will rotate, and the storage tape CX can be sent intermittently.

  A second detection sensor 44 is a sensor for detecting the introduced storage tape CX. When the storage tape CX is loaded into the component supply unit 5, when the feed hole Cd of the storage tape CX is fitted from the first sprocket 23 to each tape feed dog of the second sprocket 27 (transfer due to speed difference). In order to ascertain the position of the end of the storage tape CX with certainty, the play loss of the second sprocket 27 and the third sprocket 29 is considered. The second detection sensor 44 is arranged so as to decelerate and then stop when the leading end of the storage tape CX is detected.

  In addition, since the space | interval of the 1st sprocket 23 and the 2nd sprocket 27 is large, the fitting operation | movement of the tape feed dog of both the sprockets 23 and 27 will be influenced by the accumulated pitch error of each feed hole Cd of the storage tape CX. Therefore, the rotation speed of the first sprocket 23 is set to a low-speed rotation that is slightly slower than the rotation speed of the second sprocket 27. Further, in order to reduce the deformation of the feed hole Cd that affects the feed position accuracy of the storage tape CX, the tape feed tooth shape of the first sprocket 23 is a round tooth shape, and the feed hole Cd is in the initial state. The second sprocket 27 and the third sprocket 29 can be carried forward without being deformed.

  Further, the second sprocket 27 and the third sprocket 29 are arranged as close as possible so that the span is not affected by the accumulated pitch error, and the acceleration / deceleration control, speed control, and torque control required in the tape processing sequence can be performed. As described above, the servo motor 32 is employed and the operation is performed by the same drive source.

  Reference numeral 50 denotes a guide chute fixed to the main body 5A of the component supply unit by, for example, a fixing bolt (not shown). The storage tape CX is always pressed against the guide chute 50 from above to feed the storage tape CX. The suppressor 43 acts so that the feed hole Cd of the storage tape CX does not come off from the tape feed teeth of the second sprocket 27 and the third sprocket 29 so as not to move up and down, and the urging force of the suppressor 43 causes the tape processing unit. 28 presses the storage tape CX from above.

  Further, a component extraction opening 65 having a plane area larger than that of the electronic component D is opened at the component extraction position downstream of the cutter 30 of the tape processing unit 28 (see FIG. 6), and is stored along the guide surface 64. At a component suction / extraction position that is wider than the width of the electronic component D accommodated in the recess Cb, the suction nozzle 7 provided in the mounting head 6 passes through the component extraction opening 65 and the electrons in the storage recess Cb. The part D can be adsorbed and taken out.

  However, although the guide surfaces 64 cannot be formed in the part where the component extraction opening 65 is formed, the guide surfaces 64 are formed again on the left and right sides further downstream from the component extraction opening 65 (FIG. 6). In the meantime, the guide surface 64 will not be formed (see FIG. 14).

  An information identifying unit 66 for type discrimination is provided downstream of the tape processing unit 28. The information identifying unit 66 includes an information identifying unit 67 for identifying the operator of the electronic component mounting apparatus 1, and an electronic component. It is comprised from the information identification part 68 of the mounting apparatus 1. FIG. The information identifying unit 67 for identifying the worker is engraved with its type, for example, “W8S” so that the operator can visually identify the type of the tape processing unit 28. The information identification unit 68 of the electronic component mounting apparatus 1 is binarized information (bits) using four dots, that is, the type (type) of the tape processing unit 28 in which black circles are printed from 0 to 15. It is attached so that it can be identified.

  As described above, the information identification unit 68 is binarized information (bits) using four dots. However, information that can be directly recognized or barcode information (one-dimensional or two-dimensional) is pasted. Or a recording medium such as a memory tag or a mu chip may be embedded. When these media are used, in addition to the type information of the tape processing unit 28, individual management can be performed in addition to the unique management code and information.

  The electronic component targeted by the tape processing unit 28 has a dimension in the X direction of 10.5 mm and a dimension in the Y direction of 10.0 mm.

  Next, the control block diagram of the electronic component mounting apparatus 1 in FIG. 7 will be described. The electronic component mounting apparatus 1 includes control means, determination means, execution means, instruction means, etc. for overall control of the mounting apparatus 1. A control device 70 and a storage device 71 connected to the control device 70 via a bus line are provided. Based on the data stored in the storage device 71, the control device 70 comprehensively controls operations related to the component mounting operation of the electronic component mounting device 1.

  That is, the control device 70 controls the drive of the Y-axis drive motor 11, the X-axis drive motor 13, the vertical axis drive motor 14, the θ-axis drive motor 15 and the like through the interface 74 and the drive circuit 77, and each component. The supply unit 5 is controlled. In FIG. 20, for convenience of explanation, even though there are a plurality of them, for example, the mounting head 6 and the component supply unit 5 are omitted as one.

  The storage device 71 stores mounting data for each type of printed circuit board P related to component mounting, and the X direction (indicated by X) in the printed circuit board P for each mounting order (for each step number). , Y direction (indicated by Y) and angle (indicated by Z) information, arrangement number information of each component supply unit 5 for supplying electronic components to be mounted on a board to be manufactured, and the like are stored.

  In the storage device 71, information on the type (component ID) of each electronic component corresponding to the arrangement number (lane number) of each component supply unit 5 for each type of printed circuit board P, that is, component arrangement information (see FIG. 25) is stored, and this component arrangement information is data relating to which component supply unit 5 is mounted at which position on the cart table. Furthermore, component library data (see FIG. 26) relating to the characteristics of the electronic components such as the X-direction and Y-direction dimensions of the electronic components is stored for each component ID.

  A recognition processing device 73 is connected to the control device 70 via an interface 74 and recognizes an image captured by the component recognition camera 12 and an image captured by the substrate recognition camera 4 and captured. Processing is performed by the recognition processing device 73, and the processing result is sent to the control device 70. That is, the control device 70 outputs an instruction to the recognition processing device 73 so as to perform recognition processing (calculation of misalignment amount, etc.) on the image captured by the component recognition camera 12 and the image captured by the board recognition camera 4. At the same time, the recognition processing result is received from the recognition processing device 73.

  A monitor 75 displays a part image, a screen for setting various data, and the like. The monitor 75 is provided with various touch panel switches 76 as input means. Can be set.

  The component supply unit 5 that introduces the storage tape CX by the introduction motor 17 and the servo motor 32 and intermittently feeds it includes a control device 79 and a storage device 80. Reference numeral 82 denotes a drive circuit connected to the control device 79 via an interface 81, and the control device 79 controls the DC motor 17 and the servo motor 32 via the drive circuit 82. A control device 79 provided in the component supply unit 5 is connected to a control device 70 provided in the electronic component mounting device 1 via interfaces 81 and 74.

  As shown in FIGS. 4 and 5, an operation panel 78 is provided on the upper surface of the handle 46 of the component supply unit 5. The operation panel 78 has an arrangement number (lane number) of the component supply unit 5. A lane number selection button 78A for selection, and a display that increases the lane number by 1 each time the left portion of the lane number selection button 78A is pressed and decreases the lane number by 1 each time the right portion is pressed. A section 78B, a feed button 78C, a return button 78D, and a loading button 78E are provided (see FIG. 15).

  Therefore, when the component supply unit 5 is removed from or attached to the feeder base described above, the arrangement number (lane number) of the component supply unit 5 is pressed by the lane number selection button 78A while viewing the display unit 78B. It can be selected (changed) based on this. The arrangement number (lane number) of the selected component supply unit 5 is rewritten and stored in the storage devices 89 and 70.

  Next, when a new storage tape CX wound around a new storage tape reel is loaded into the component supply unit 5, the operator first removes the tape pressing member 24 and places the front end of the storage tape CX on the guide passage. Then, after the tape feed dog of the first sprocket 23 is fitted into the feed hole Cb of the storage tape CX, the tape pressing member 24 is set. Similarly, a new storage tape CX is loaded for the other plurality of component supply units 5.

  Hereinafter, the operation when the electronic component mounting apparatus 1 starts the mounting operation of the electronic component on the board will be described based on the flowcharts of FIGS.

  When the operator operates the start switch SW to turn it on (step S01), the control device 70 operates, is mounted on the electronic component mounting apparatus 1, is registered in the mounting data, and supplies electronic components to be mounted on the board to be manufactured. It is determined whether each component supply unit is a component supply unit that includes the tape processing unit 28 and can be automatically loaded as described above (step S02). Hereinafter, operations such as a command from the control device 70 and determination by the control device 70 for one automatic loading unit 5 among the plurality of automatic loading units will be described. Note that the controller 70 also issues commands and determinations for the other component supply units 5 capable of automatic loading.

  If the component supply unit 5 is not capable of automatic loading, the control device 70 stops the control for automatic loading without giving an instruction or the like for the subsequent loading operation (step S03).

  When the component supply unit 5 (hereinafter referred to as “automatic loading unit”) 5 capable of automatic loading is used, the control device 70 sequentially applies the first detection sensor 25 to the plurality of mounted automatic loading units 5. A command for reading the detection state of the storage tape CX by the second detection sensor 44 is output, and for example, the detection state by each sensor of the automatic loading unit 5 that supplies components to be mounted on a board to be produced from the automatic loading unit 5 Read sequentially (step 04). First, it is determined whether or not the second detection sensor 44 has detected the storage tape CX (step S05). When the second detection sensor 44 detects the storage tape CX and is ON, the consistency check is performed. The consistency confirmation operation will be described with reference to the flowchart of FIG.

  First, it is determined whether or not the remaining number is managed for the automatic loading unit 5 (step S61). If the remaining number management is being performed, the control device 70 then reads the remaining number management data from the storage device 70 (step S62), and the new automatic storage unit is newly stored by the remaining number management data. When the tape is inserted, the remaining number of the storage tape is inputted from the monitor 75 by the operator, and it is determined whether or not the tape is added (step S63). When a new storage tape is inserted, the remaining number of the storage tape is input from the monitor 75 by the operator and when it is added, the electronic component mounting apparatus 1 supplied from the target automatic loading unit is added. The suction operation by the mounting head 6 is started (step S64). As a result, the mounting operation of the electronic component on the substrate can be started in a short time.

  When a new storage tape is inserted and the remaining number of storage tapes is not input from the monitor 75 by the operator, the electronic parts that are the subsequent operations are not supplied and abnormally stop (step S65). .

  Further, when it is determined in step S61 that the remaining number management is not performed, for example, when an external management computer is connected to the electronic component mounting apparatus 1 through a signal line, it is registered in advance by the management computer. The type of electronic component that must be supplied is compared with the type of electronic component supplied by the automatic loading unit. If they match, the mounting device 1 for the electronic component supplied from the target automatic loading unit is compared. When the suction operation by the mounting head 6 is started and does not coincide, the operation is not performed thereafter, and the operation stops abnormally (step S66).

  If the second detection sensor 44 is not detecting the storage tape CX and is turned OFF, the first detection sensor 25 provided on the upstream side of the method of feeding the storage tape CX then turns the storage tape CX on. It is determined whether or not it has been detected (step S07). When the first detection sensor 25 detects the storage tape CX and is ON, the consistency of the subsequent storage tape CX is confirmed.

    The consistency confirmation operation will be described with reference to the flowchart of FIG.

  First, as in the flowchart shown in FIG. 10, the determination and operation from step S61 to step S63 are performed. When a new storage tape is inserted in the determination of step S63, the remaining number of storage tapes is determined by the operator. When it is input from the monitor 75 and added, a loading command is output in the same manner as in step S17 described later (step S67). As a result, the loading of the storage tape can be started.

  Further, when a new storage tape is inserted, if the remaining number of storage tapes is not input from the monitor 75 by the operator, the electronic component is not supplied as a subsequent operation, and abnormally stops ( Step S65).

  Further, when it is determined in step S61 that the remaining number management is not performed, for example, when an external management computer is connected to the electronic component mounting apparatus 1 through a signal line, it is registered in advance by the management computer. The type of electronic component that must be supplied is compared with the type of electronic component supplied by the automatic loading unit. If they match, the mounting device 1 for the electronic component supplied from the target automatic loading unit is compared. When the suction operation by the mounting head 6 is started and does not coincide, the operation is not performed thereafter, and the operation stops abnormally (step S66).

  Further, when the first detection sensor 25 does not detect the storage tape CX and is turned OFF in the determination in step S07 described above, the control device 70 drives the automatic loading unit 5 to drive the DC motor 17. Is output (step S08). The control device 79 of the automatic loading unit 5 that has input this drive command drives the DC motor 17 for a predetermined time (for example, 1 second). Then, after outputting the drive command, the control device 70 reads the state of a later-described register for the DC motor 17 stored in the storage device 80 of the automatic loading unit 5, and drives the DC motor 17 according to the state of this register. It is determined whether or not the tape pull-in operation is completed every predetermined time (for example, 600 msec) (step 09) (step S10). In the automatic loading unit 5 that receives a drive command from the control device 70, the control device 79 outputs a drive signal to the DC motor 17 via the drive circuit 82, and the DC motor 17 starts operation.

  The control device 79 of the automatic loading unit 5 to which the driving command is inputted controls the DC motor 17 to be driven by the timer 45 for a predetermined time (for example, 1 second), and the storage tape CX is driven by the rotation of the first sprocket 23. It is sequentially sent to the inner back (the left direction in FIG. 4). Thus, when the DC motor 17 is driven, the register stored in the storage device 80 is ON.

  When the storage tape CX is being sent and the first detection sensor 25 detects the storage tape CX, the control device 80 stops the DC motor 17 and the registers stored in the storage device 80 are It is switched from ON to OFF. In addition, when the storage tape has an abnormality before the storage tape CX reaches the first detection sensor 25 and the first detection sensor 25 detects a predetermined time by the timer 45 before detecting the storage tape CX, The control device 79 operates to stop the DC motor 17, and the DC motor 17 stops. At this time, the register stored in the storage device 80 is switched from ON to OFF. Further, when the first detection sensor 25 detects the storage tape CX, the control device 79 switches the register stored in the storage device 80 from ON to OFF.

  After a predetermined time has elapsed after outputting the drive command, the control device 70 reads the register state from the storage device 80 of the automatic loading unit 5 at predetermined time intervals (for example, every 600 msec), and the register state is turned ON. It is determined that the tape pull-in operation by the DC motor 17 is completed due to the change from OFF to OFF (step S10). When the control device 70 determines that the pull-in operation is finished, the alarm information is read from the automatic loading unit 5 thereafter. That is, when the DC motor 17 is being driven, that is, when the storage tape CX is being fed, information (alarm information) indicating whether or not an abnormality has occurred in the feeding of the storage tape CX is read from the automatic loading unit 5. (Step S11). The abnormality in the feeding of the storage tape CX is caused by, for example, clogging of the tape at the first sprocket 23 due to the overlap of the storage tape CX or the first sprocket due to adhesion of dust or the like to the rotating portion of the first sprocket 23 For example, an overload is generated in the DC motor 17 due to a rotation abnormality 23.

  Then, the control device 70 determines whether or not there is alarm information (step S12). If it is determined that there is alarm information, the control device 70 determines that the alarm is ended (step S13), and the monitor 75 pulls in the storage tape. Displays that the process ended abnormally.

  When the alarm information is not input, the control device 70 outputs a command for reading out the detection state of the storage tape CX by the first detection sensor 25 and the second detection sensor 44, and automatically loads the detection state of each sensor. Read from the storage device of the unit 5 (step S14). Then, the first detection sensor 25 detects the storage tape and determines whether or not it is ON (step S15). If the storage tape is not detected and is OFF, then the operation of the automatic loading unit 5 is performed. Without performing this, the control is terminated (step S16). Further, when the first detection sensor 25 detects the storage tape and is ON, the control device 70 outputs a loading command (step S17). As a result, the loading operation in the automatic loading unit 5 can be automatically started by the operation of the start switch SW by the operator, and the workability can be improved.

  Thereafter, the controller 70 waits for a predetermined time (for example, 1 second) to elapse, and when the time elapses, the control device 70, as in the above-described determination of completion of the tape pull-in operation by the DC motor after the output of the DC motor drive command, 5 is used to read a register state to be described later for the servo motor 32 stored in the storage device 80, and whether the loading operation by driving the servo motor 17 is completed by the state of the register (change of the register from ON to OFF). Whether or not is determined every time a predetermined time (for example, 600 msec) has elapsed (step 18) (step S19).

  Hereinafter, the loading operation in the automatic loading unit 5 will be described.

  The control device 79 that has received the loading command from the control device 70 continues to drive the DC motor 17 and starts to drive the servo motor 32, and the storage tape CX is moved forward by the first sprocket 23. The storage tape CX is moved forward by the rotation of the second sprocket 27 and the third sprocket 29.

  Then, the moving operation is continued according to the preset feed amount, and when the second detection sensor 44 detects the leading end of the storage tape CX during the movement, the control device 79 stops the driving of the DC motor 17 and the servo motor. 32 is forcibly decelerated and stopped. In this case, if the second detection sensor 44 cannot detect the leading end of the storage tape CX despite the above-described preset feed amount, the control device 79 causes the DC motor 17 and the servo motor 32 to be connected. Control is performed so as to cause an abnormal stop. At this time, the register related to the loading operation of the storage device is switched from ON to OFF.

  Subsequently, in consideration of the overrun amount of the storage tape CX when the servo motor 32 decelerates and stops as described above, the second detection sensor 44 does not detect the reverse rotation operation by the minimum pitch feed at the front end of the storage tape CX. Repeat until the end position of the storage tape CX is determined. That is, the tip position of the storage tape CX is determined by repeating the reverse rotation operation and the stop operation of the servo motor 32 with the minimum pitch.

  The first sprocket 23 is provided with a one-way clutch and does not rotate in reverse, but the return tape is small and the storage tape fitted to the feed teeth of the second sprocket 27 due to the low tooth height of the first sprocket 23. CX is slid backward by the thrust of the servo motor 32.

  Then, the drive of the servo motor 32 is controlled so that the tip of the storage tape CX is fed at a high speed to the position immediately before the blade of the cutter 30 by a predetermined amount of one-time feeding operation. That is, by determining the tip position of the storage tape CX, the storage tape CX is fed at a high speed according to the design dimensions up to the position immediately before the blade of the cutter 30.

  Thereafter, the storage tape CX is inserted into the slitting zone of the cover tape Cc by the cutter 30 to cut the cover tape Cc. In this case, the cover tape Cc is not peeled off from the carrier tape Ca, but is opened upward so as to be cut open in the left-right direction with respect to the traveling direction. Do.

  Then, a pitch feeding operation for cueing the position of the storage recess Cb at the tip of the storage tape CX to the position of the component extraction opening 65 is performed a predetermined number of times. In this case, according to the feed pitch according to the cumulative feed amount from the position where the tip position of the previous storage tape CX is determined (the drive management amount of the servo motor 32 by fitting the tape feed dog of the second sprocket 27 to the feed hole Cd). A predetermined feeding operation for adjusting the position of the storage recess Cb to the position of the component extraction opening 65 is performed.

  The automatic positioning of the storage recess Cb is performed by controlling the feed amount based on the positional relationship of the storage recess Cb in accordance with the taping standard, based on the cutting position according to the feed hole Cd standard at the tip of the storage tape CX. .

  Then, the storage tape CX is moved forward by the first sprocket 23, the second sprocket 27, and the third sprocket 29, which is downstream in the tape feeding direction.

  Then, the moving operation of the storage tape CX is continued according to a preset feed amount, and when the second detection sensor 44 detects the tip of the storage tape CX during this movement, the driving of the DC motor 17 is stopped and the servo motor 32 is forcibly decelerated and stops. Then, the automatic loading operation ends. At this time, the register related to the loading operation stored in the storage device 80 is switched from ON to OFF. In this case, if the second detection sensor 44 cannot detect the leading end of the storage tape CX despite the above-described preset feed amount, the DC motor 17 and the servo motor 32 are abnormally stopped. Also at this time, the register related to the loading operation stored in the storage device 80 is switched from ON to OFF.

  After outputting the loading command, the control device 70 reads the state of the register related to the loading operation from the storage device 80 of the automatic loading unit 5 every predetermined time (for example, every 600 msec), and the automatic loading operation is completed. It is determined whether or not it has been done (step S19). Then, it is determined that the automatic loading operation by the DC motor 17 and the servo motor 32 is completed due to the change of the register state from ON to OFF (step S19). The control device 70 determines that the automatic loading operation is finished.

  Thereafter, the control device 70 reads alarm information from the automatic loading unit 5 (step S20). The alarm information related to the automatic loading operation is, for example, that the detection sensor 44 cannot detect the leading end of the storage tape CX regardless of the operation of the DC motor 17 and the second servo motor 32, and the control device 79 is the DC motor 17 and the servo motor 32. The control device 70 confirms the presence or absence of alarm information (step S21). As a result, when it is determined that there is no alarm, it is determined that the automatic loading operation has been completed without abnormality. (Step S22). Further, when the control device 70 determines that there is alarm information, the monitor 75 displays that the automatic loading operation has ended abnormally as an abnormal end (step S23).

  The retracting of the storage tape CX and the automatic loading operation from the above-described steps S04 to S23 based on the command from the control device 70 of the electronic component mounting apparatus 1 are as described above among the automatic loading units determined in step S02. In addition, the automatic loading unit 5 for supplying electronic components to the substrate to be produced is sequentially performed in accordance with a command from the control device 70, and the loading operation for a plurality of storage tapes by the operator is simplified on the ground. be able to.

  Subsequently, in view of the overrun amount of the storage tape CX when the servo motor 32 decelerates and stops as described above, the second detection sensor 44 does not detect the reverse rotation operation by the minimum pitch feed at the front end of the storage tape CX. Repeat until the end position of the storage tape CX is determined. That is, the tip position of the storage tape CX is determined by repeating the reverse rotation operation and the stop operation of the servo motor 32 with the minimum pitch.

  The first sprocket 23 has a one-way clutch and does not rotate in reverse. However, the first sprocket 23 is fitted to the feed dog of the second sprocket 27 because the return amount is small and the teeth of the first sprocket 23 are low. The storage tape CX is slid backward by the thrust of the servo motor 32.

  The drive of the servo motor 32 is controlled so that the leading end of the storage tape CX is fed at a high speed to the position immediately before the blade of the cutter 30 by a predetermined amount of one-time feeding operation. That is, by determining the tip position of the storage tape CX, the storage tape CX is fed at a high speed according to the design dimensions up to the position immediately before the blade of the cutter 30.

  Then, the tip of the storage tape CX moves to a zone where the cover tape Cc is cut by the cutter 30, and the cover tape Cc is cut and divided.

  As shown in FIG. 12, when the storage tape CX is fed in the arrow direction H, the blade tip (the most advanced portion) of the cutter 30 abuts on the leading end surface 111 of the storage tape CX.

  FIG. 12 shows a state in which the edge 106 at the blade tip of the cutter 30 abuts on a substantially boundary portion 110 between the cover tape Cc and the carrier tape Ca. When the storage tape CX further moves in the arrow direction H from the state of FIG. 12, the edge 106 divides the substantially boundary portion 110 between the cover tape Cc and the carrier tape Ca vertically, and the bottom processing surface 104 is the carrier tape. The cutter 30 abuts on the corner of the end face of Ca and rides on the upper surface of the carrier tape Ca. When the cutter 30 rides on the upper surface of the carrier tape Ca, the cutter 30 is raised by the height difference between the edge 106 and the bottom surface 103, and the tape processing unit 28 is also raised accordingly. As a result, the tape processing unit A slight gap is formed between the lower surface of the portion upstream of the cutter 30 at 28 and the storage tape CX. Further, the tape processing unit 28 is inclined around the component extraction opening 65 of the downstream portion 28B of the tape processing unit 28 downstream of the cutter 30, so that there is almost no gap between the lower surface of the downstream portion 28B and the carrier tape Ca. The carrier tape Ca is pressed from above by the tape processing unit 28.

  Further, the cover tape Cc of the storage tape CX that has reached the cutter 30 moves obliquely upward on the upper processing surface 105 without being cut, and the state shown in FIG. 13 is obtained.

  That is, since the cutter 30 is pressed downward by the spring together with the suppressor 43, it rises against this pressing force and rides on the upper surface of the carrier tape Ca. At this time, the end edge 106 comes into contact with the center portion in the width direction orthogonal to the feed direction H of the cover tape Cc. However, since the end edge 106 has a slight dimension in the horizontal direction and is linear, It can be avoided that 106 breaks through and cuts the cover tape Cc. As a result, the edge 106 and the upper processing surface 105 move relative to the storage tape CX while pushing up the cover tape Cc. Then, the left end portion of the cover tape Cc in FIG. 13 is not cut at least on the upper processing surface 105 but is further raised from the upper end of the upper processing surface 105 and is cut when reaching the upper portion of the square blade portion 102 to some extent. .

  The cover tape Cc shown in FIG. 13 is not cut and remains on the cutter blade 101. The cover tape Cc is not shown in FIG. That is, since the cover tape Cc is bonded to the carrier tape Ca on both sides of the storage recess, the tension increases each time the height lifted by the cutter blade 20a increases. A portion of the cover tape Cc where a predetermined or higher tension is applied to the square blade 102 is cut and divided by the square blade 102.

  FIG. 12 shows the case where the height of the edge 106 at the tip of the cutter 30 is the boundary between the cover tape Cc and the carrier tape Ca, and the edge 106 hits the leading end surface 11 of the storage tape CX at this boundary. Depending on the type of CX, the thickness of the cover tape Cc may differ. The cutter 30 is attached to the tape processing unit 28 pressed downward, and until the edge 106 of the storage tape CX moved from the upstream contacts the cutter 30, the position where the cutter contacts (the edge of the cutter) ) On the upstream side, the storage tape CX is pressed downward by the tape processing unit 28, and there is almost no gap between the storage tape CX and the tape processing unit 28. For this reason, the heights of the upper surfaces of the cutter 30 and the storage tape CX are always kept in a fixed positional relationship.

  Thus, for example, as shown in FIG. 12, the edge 106 of the blade of the cutter 30 abuts on the same height position of the leading end surface 11 of the storage tape CX.

  Similarly, when the storage tape CX is an embossed tape in which the storage recess of the electronic component protrudes downward and the storage recess of the carrier tape is covered with the cover tape, the storage tape CX is moved by the movement of the storage tape in the downstream direction. When the bottom processing surface of is pressed against the inside of the corner portion of the carrier tape, the cutter receives an upward force larger than the downward force. Therefore, the cutter 30 moves up to a position where the bottom surface 103 rides on the upper surface of the carrier tape Ca while the edge 106 of the blade portion 101 scrapes the carrier tape Ca upward or bends it downward.

  In this ascending process, the upper processing surface 105 (or further the square blade portion 102) above the carrier tape Ca lifts the cover tape Cc as shown in FIG. The part 102 cuts the cover tape Cc as described above.

  As described above, since the bottom surface processing surface 104 is formed, the edge 106 of the cutter blade portion 101 remains stuck in the middle of the end surface of the carrier tape Ca even if the cover tape Cc has some variation in thickness. Thus, it is possible to prevent the cover tape Cc from buckling and becoming unable to cut the cover tape Cc, or the blade tip from being chipped.

  Even when the edge 106 that is the cutting edge of the cutter 30 hits the leading end surface 11 of the storage tape CX at a position slightly above the boundary between the cover tape Cc and the carrier tape Ca, the lower side of the end surface of the cover tape Cc The cover tape Cc can escape upward and the blade tip can enter underneath. Therefore, the cutter 30 may be provided in the tape processing unit 28 so that the position at which the edge 106 of the cutter 30 having the bottom surface processing surface 104 hits the storage tape CX is the height position at the approximate center of the variation allowable range. desirable.

  Furthermore, in the storage tape CX, it is preferable not to store the electronic component D in the leading storage recess Cb as shown in FIGS.

  Then, a pitch feed operation is performed a predetermined number of times to cue the position of the storage recess Cb that is second from the front end of the storage tape CX and stores the electronic component into the component extraction opening 65. A pitch feed operation is performed to send the electronic component to the component take-out opening 65.

  Thus, when the pitch feeding operation of the storage tape is performed, the electronic component is stored in the first component dropping device 91 or the second component dropping device before the storage recess Cb in which the electronic component is stored reaches the cutter 30. 141, since it falls to the bottom Cd of the storage recess Cb, when the storage recess Cb in which the electronic component is stored reaches the cutter 30, it is reliably avoided that the edge 106 of the cutter 30 hits the electronic component D. As a result, the storage tape CX can smoothly pass through the cutter 30 and move to the component take-out opening 65, so that supply of electronic components can be started smoothly and stable component supply can be achieved.

  In the embodiment described above, the control device 70 outputs a loading command in step S17, and as a result, the loading operation in the automatic loading unit 5 starts automatically. The loading operation may be started not by the command but by the control by the control device 79 in the automatic loading unit.

  Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description. It encompasses alternatives, modifications or variations.

1 Electronic component mounting device 5 Component supply unit (automatic loading unit)
17 DC motor 24 Tape pressing member 25 First detection sensor 30 Cutter 32 Servo motor 44 Second detection sensor 70 Control device 79 Control device CX Storage tape D Electronic component SW Start switch

Claims (3)

In the electronic component mounting apparatus comprising a plurality of component supply units that intermittently move the storage tape and supply the electronic component stored in the storage recess of the storage tape to the component extraction position.
A component supply unit including a sprocket that feeds the storage tape, the tip of which is located upstream in the feeding direction of the storage tape, from the upstream side to the downstream side, a motor that drives the sprocket, and the motor by operating a switch. An electronic component mounting apparatus comprising: a control device that outputs a drive command of   The electronic component mounting apparatus according to claim 1, wherein the component supply unit includes a cutter that cuts a cover tape that covers an upper surface of the storage recess to open an upper surface of the storage recess. 3. The electronic component mounting apparatus according to claim 2, wherein the control device outputs a drive command for the motor provided in the component supply unit registered in mounting data.

Images