JP4364293B2 - Electronic component mounting device - Google Patents

Description

  The present invention relates to electronic component mounting in which a component supply unit for supplying electronic components in a storage tape is provided, and the electronic components supplied from the component supply unit are sucked and mounted on a printed circuit board.

In this type of electronic component mounting device, particularly a high-speed gantry-type mounting device, the component supply unit is fixed and does not move. Therefore, so-called splicing replenishment is used in which storage tapes are connected and replenished during automatic operation. The number of users is increasing rapidly. And this kind of connection method of storage tapes is disclosed, for example, in Patent Document 1 and the like, but a connection member and a connection method for simplifying the connection work have been proposed.
JP-A-5-338618

  However, it is difficult to maintain and continue the electronic component suction operation at the connecting portion (joint region) between the storage tape and the storage tape without problems. That is, especially when the storage tape is a paper tape, there is a strong stiffness near the end of the paper tape, so it remains bent, and it is necessary to arrange it so that it becomes straight, but this connection is necessary. Part adsorption mistakes occur in the part and the adsorption rate is not good.

  In addition, since it is a double stack that overlaps the cover tape of the new storage tape on the cover tape of the old storage tape at the connection part, and since a splicing tape (connection tape) is also required, it has a three-layer structure, so the thickness is large, The tape presser is easily lifted, the electronic component is likely to be violated in the storage portion of the storage tape, and the component suction operation becomes unstable.

  In addition, when the storage tape is cut, a shortage of electronic components may occur in the storage portion at the joint between the connecting portions, and sometimes a shortage of two or three electronic components may occur. The idea that if an adsorption error is counted due to the adsorption operation at this time, not only will the apparatus operating rate calculation be affected, but the adsorption operation at the connected part cannot be handled in the same way as the non-connected part. There is also.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to stabilize the suction operation of an electronic component at a connecting portion between storage tapes, to ensure the suction operation, and to improve productivity.

For this reason, the first invention is provided with a component supply unit for supplying an electronic component in a storage tape, and an electronic component mounting apparatus for sucking an electronic component supplied from the component supply unit by a suction nozzle and mounting the electronic component on a printed circuit board. The connecting tape connecting the storage tapes is provided with a control device that idles the storage tape without performing the component suction operation by the suction nozzle.

According to a second aspect of the present invention, there is provided an electronic component mounting apparatus that includes a component supply unit that supplies an electronic component in a storage tape, and sucks the electronic component supplied from the component supply unit by a suction nozzle and mounts the electronic component on a printed circuit board. A controller that detects that the storage tapes are connected to each other, and that feeds the storage tape without performing the component suction operation by the suction nozzle at a portion of the connection tape that connects the storage tapes; Features.

According to a third invention, in the first or second invention, there is provided setting means for setting the length of the connecting tape , and the idle feeding is performed in a section preset by the setting means .

According to a fourth invention, in the first or second invention, there is provided setting means for setting a length of the connecting tape , and the idle feeding is performed at least in a section set by the setting means .

According to a fifth invention, in the second to fourth inventions, the detection that the storage tapes are connected to each other is performed by a detection means that detects a connection tape that connects the storage tapes.
According to a sixth aspect of the present invention, there is provided an electronic component mounting apparatus that includes a component supply unit that supplies an electronic component in a storage tape, and sucks the electronic component supplied from the component supply unit by a suction nozzle and mounts the electronic component on a printed circuit board. A joint detection device that detects a connection tape that connects storage tapes, a counter that counts the number of feeding operations of the storage tape after the connection detection device detects the connection tape, and a counter that counts a predetermined number of times. Is provided with a control device for controlling the suction nozzle so as not to perform the component suction operation even when the storage tape is fed in a predetermined section.
A seventh invention is characterized in that, in the sixth invention, there is provided setting means for setting the predetermined section as the number of missing electronic components to the storage tape.
An eighth invention is characterized in that, in the sixth invention, there is provided setting means for setting the predetermined section as the length of the portion of the connecting tape connecting the storage tapes .
According to a ninth invention, in the sixth to eighth inventions, the predetermined section is set as the number of missing electronic components to the storage tape , or the length of the portion of the connecting tape connecting the storage tapes. A selection means for selecting whether to set is provided.
A tenth aspect of the invention is characterized in that in the sixth to ninth aspects of the invention, there is provided setting means for setting the predetermined section for each type of electronic component.

  The present invention stabilizes the suction operation of the electronic component at the connecting portion between the storage tapes, ensures the suction operation, and can improve productivity.

  Hereinafter, an electronic component mounting apparatus including a component supply apparatus and an electronic component mounting apparatus main body will be described with reference to the accompanying drawings. This electronic component mounting apparatus is a so-called multifunctional chip mounter, and various electronic components can be mounted on the printed circuit board P.

  FIG. 1 is a plan view of an electronic component mounting apparatus. An electronic component mounting apparatus main body 1 includes a machine base 2, a conveyor unit 3 extending in the left-right direction at the center of the machine base 2, and a front of the machine base 2. Two sets of component mounting portions 4 and 4 and two sets of component supply portions 5 and 5 are provided respectively at a portion (lower side in the drawing) and a rear portion (upper side in the drawing). In the component supply unit 5, a plurality of component supply units 6 which are electronic component supply devices are placed on, for example, a cart (not shown) and are detachably incorporated to constitute an electronic component mounting device.

  The conveyor unit 3 includes a central set table 8, a left supply conveyor 9, and a right discharge conveyor 10. The printed circuit board P is supplied from the supply conveyor 9 to the set table 8, and is fixedly set at a predetermined height so as to receive mounting of electronic components on the set table 8. Then, the printed circuit board P on which the mounting of the electronic components is completed is discharged from the set table 8 to the downstream device via the discharge conveyor 10.

  Each component mounting portion 4 is provided with an XY stage 12 on which a head unit 13 is movably mounted, as well as a component recognition camera 14 and a nozzle stocker 15. The head unit 13 is equipped with two mounting heads 16 and 16 for sucking and mounting electronic components, and one substrate recognition camera 17 for recognizing the position of the printed circuit board P. Normally, the XY stages 12 and 12 of both the component mounting parts 4 and 4 are alternately operated.

  In each XY stage 12, the beam 12A is moved in the Y direction by the Y axis drive motor 12Y, and the head unit 13 is moved in the X direction by the X axis drive motor 12X. As a result, the head unit 13 is moved in the XY direction. It becomes.

  As will be described later, each component supply unit 5 includes a number of component supply units 6 on a feeder base 19 that are detachable side by side. Each component supply unit 6 is loaded with a storage tape C, which will be described later, in which a large number of electronic components are stored in each storage portion Cc at regular intervals, and by intermittently feeding the storage tape C, the component supply unit 6 One electronic component is supplied from the tip to the component mounting portion 4 one by one.

  The operation based on the mounting data stored in the storage unit of the electronic component mounting apparatus main body 1 is performed by first driving the XY stage 12 so that the head unit 13 faces the component supply unit 6 and then the suction nozzle provided on the mounting head 16. A desired electronic component is picked up (taken out) by lowering 18. Subsequently, after the mounting head 16 is raised, the XY stage 12 is driven to move the electronic component to a position directly above the component recognition camera 14 to recognize the suction posture and the positional deviation with respect to the suction nozzle 18. Next, after the mounting head 16 is moved to the position of the board P on the set table 8 and the position of the board P is recognized by the board recognition camera 17, based on the recognition result by the component recognition camera 14 and the board recognition camera 17, The X-axis drive motor 12X, the Y-axis motor 12Y of the XY stage 12 and the θ-axis motor 18A of the suction nozzle 18 are corrected and moved to mount electronic components on the printed circuit board P.

  Next, the component supply unit 6 will be described with reference to FIGS. This component supply unit 6 is composed of a unit frame 21 and a storage tape C that is sequentially fed in a state of being wound around a storage tape reel (not shown) placed under the cart on which the component supply unit 6 is placed. The tape feeding mechanism (tape feeding device) 22 intermittently feeds to the pickup position (suction take-out position), and a cover tape peeling mechanism 20 to be described later for peeling the cover tape Ca of the storage tape C before the pickup position. The

  The storage tape C fed out from the storage tape reel is fed to the pickup position so as to dive under the suppressor 23 disposed in the tape path before the pickup position. The suppressor 23 has an opening for pickup. A slit is formed in the suppressor 23, and the cover tape Ca of the storage tape C is peeled off from the slit and stored in the storage unit 26. That is, the electronic component mounted on the storage tape C is sent to the pickup opening in a state where the cover tape Ca is peeled off, and is picked up by the suction nozzle 18.

  Next, the tape feeding mechanism 22 will be described with reference to FIG. The tape feeding mechanism 22 includes a servomotor 28 that is a drive source capable of forward and reverse rotation having a gear 27 on its output shaft, and a gear 30 in which a timing belt 29 is stretched between the gear 27 at one end. A feed shaft formed on the storage tape C and having a rotating shaft 33 rotatably supported by a support 31 via a bearing 32 and a worm wheel 35 meshing with a worm gear 34 provided at an intermediate portion of the rotating shaft 33. The sprocket 36 is configured to mesh with the hole Cb and send it. The worm wheel 35 and the support shaft 37 of the sprocket 36 pass through the intermediate partition of the unit frame 21.

  Accordingly, when the servo motor 28 is driven to rotate in order to supply the electronic components in the storage tape C in the component supply unit 6, the gear 27 and the gear 30 are rotated via the timing belt 29, so that only the rotation shaft 33 is rotated. The sprocket 36 rotates and intermittently rotates by a predetermined angle in the feed direction via the worm gear 34 and the worm wheel 35, whereby the storage tape C is intermittently fed via the feed hole Cb.

  Next, the cover tape peeling mechanism 20 will be described. The cover tape peeling mechanism 20 includes a drive motor 42 provided with a worm gear 41 on its output shaft, a gear 45 surrounding the gear 45 and a gear 43 that meshes with the gear 41, and a support shaft fixed to a support body 44 fixed to the unit frame 21. A first rotating body 46 rotatably supported through 46A, and a support body that includes a gear 47 that meshes with the contact portion 51 and the gear 45 around the first rotating body 46, and is fixed to the unit frame 21 via the mounting body 48. The unit frame 21 is provided with a second rotating body 50 rotatably supported by a support shaft 49A on a support shaft 49 and an abutting portion 52 that is urged by and abutted by the abutting portion 51 and a spring 55 around the second rotating body 50. A third rotating body 56 rotatably supported via a support shaft 56A by a mounting body 54 that can swing via the support shaft 53, a roller 57 that guides the cover tape Ca, and a unit frame 21 is provided with a roller 60 for guiding the cover tape Ca guided by the roller 57 at the end of a mounting body 59 that can swing through a support shaft 58 and is urged by a spring 61 to be tensioned to the cover tape Ca. It is comprised from the tension application body 62 for adding. Reference numeral 63 denotes a stopper for restricting the swing of the mounting body 59.

  Therefore, when the cover tape Ca is peeled off, when the drive motor 42 is driven, the first rotating body 46 rotates via the gear 41 and the gear 43, and when the first rotating body 46 rotates, the gear 45 is rotated. And the second rotating body 50 rotates via the gear 47, and when the second rotating body 50 rotates, the contact portion 52 and the contact portion 51 urged by the spring 55 sandwich the cover tape Ca. In this state, the third rotating body 56 rotates, and the cover tape Ca of the storage tape C is peeled off by one pitch from the slit of the suppressor 23, and is provided at the end of the component supply unit 6 without being loosened. Stored in the storage unit 26.

  The suppressor 23 has a substantially L-shaped cross section from a vertical piece serving as a support portion and a horizontal piece that holds the storage tape C engaged with the teeth of the sprocket 36 so that the feed hole Cb is engaged with the unit frame. 21, a vertical piece is supported on the inside so as to be rotatable about a support shaft at the rear end portion, and a locking body (not shown) urged by a spring in a locking direction to the front end portion of the horizontal piece. ) Is provided with a vertical locking piece having a locking hole that can be locked.

  In addition, in a state where the suppressor 23 serving as a peeling fulcrum of the cover tape Ca of the storage tape C is rotated upward, the loading that communicates with the tape passage 64 formed in the unit frame 21 from the side of the component supply unit 6. The storage tape C can be loaded into the component supply unit 6 through the opening 65 for use. Reference numeral 66 denotes a prevention member for preventing the storage tape C loaded in the component supply unit 6 from being detached from the loading opening 65, and is provided in the vicinity of the rear end portion of the horizontal passage of the tape passage 64, in the middle portion, or in an oblique passage. In the vicinity of the upper end portion of the tube or at the boundary between the horizontal passage and the oblique passage (see FIG. 2).

  Reference numeral 68 denotes a label attached to the rear surface of the handle 77 of the component supply unit 6, and a bar code indicating the serial number of the component supply unit 6 is written on the label 68. Accordingly, the barcode can be read by a barcode scanner (not shown) even when the plurality of component supply units 6 are attached to the electronic component mounting apparatus main body 1 in close proximity to each other.

  Next, a large number of component supply units 6 are detachably arranged in parallel on the feeder base 19, and the configuration thereof will be described. First, as shown in FIGS. 1, 4, and 5, a pair of guide members 70 having parallel side surfaces 70 </ b> A for guiding each component supply unit 6 are provided on the upper surface of the feeder base 19 via a plurality of mounting pins 101. Provided on the bottom surface of the component supply unit 6 is a guided member 71 having a U-shaped cross section in which a concave portion 71A is formed on each outer surface to which the pair of guide members 70 are fitted and guided. Yes. Further, the front side end portions of the pair of guide members 70 are inclined upward, and opposite side surfaces 70B are formed so that the distance between them becomes farther toward the front.

  A pair of guide members 70 are provided corresponding to the component supply unit 6. However, since a plurality of component supply units 6 are arranged side by side, the guide member 70 is a guide member 70 of the adjacent component supply unit 6. Also used as

  When the guided member 71 is guided by the pair of guide members 70 and the guided member 71 is slid on the feeder base 19 and moved to attach the component supply unit 6, A front-rear restricting member 72 is provided at the end of the feeder base 19 on the depth side to restrict the position of the component supply unit 6 in the front-rear direction by contacting the guided member 71.

  Further, on the feeder base 19 between the side surfaces 70A of the front portion of the guide member 70, a cylindrical shape that fits in the restriction groove 71B of the guided member 71 and restricts the position of the component supply unit 6 in the left-right direction. Rear left and right restricting pins 73 are provided. Further, a cylindrical front left / right restriction pin 74 that fits in a restriction groove 71B of the guided member 71 in the vicinity of the front / rear restriction member 72 where the guide member 70 is not provided and restricts the position in the left / right direction. Is formed.

  However, the regulation groove 71B of the guided member 71 is engaged with the front left / right regulation pin 74 having a larger diameter than the rear left / right regulation pin 73 and regulates the position of the component supply unit 6 in the left / right direction. When the component supply unit 6 is mounted and fixed on the feeder base 19, the width of the restriction groove 71B is restricted so that the position in the left-right direction is restricted. It is formed to be approximately the same as the diameter of 74 and is formed to be approximately the same as the diameter of the rear left / right regulating pin 73 at a position where the rear left / right regulating pin 73 is fitted.

  Further, a handle 77 is formed at the rear part of the component supply unit 6, and a lock release lever 79 that is rotatable about the support shaft 78 is provided. The lock release member 81 provided with the abutting portion 81A and rotatably supported with the support shaft 80 as a fulcrum, and the lock release lever 79 are connected to the connection plate 84 rotatably supported by the support shafts 82 and 83. Are connected through. The lock release member 81 is urged to rotate counterclockwise by a spring 85, but counterclockwise rotation is restricted by a restriction pin 86.

  A coil spring 90 is stretched between the attachment member 87 of the feeder base 19 and a locking member 89 that can be rotated with the support shaft 88 as a fulcrum, and is locked with the first lock member 92 provided in the component supply unit 6. A locking member 89 having a possible first locking portion 89A is urged to rotate clockwise. The first lock member 92 includes a roller 92A and a support member 92B on which the roller 92A is provided. A release device that releases the lock between the first lock portion 89A of the lock member 89 and the roller 92A of the first lock member 92 is configured from the lock release lever 79, the lock release member 81, the connecting plate 84, and the like. Is done.

  When the component supply unit 6 is attached to the feeder base 19, the operator holds the handle 77 and moves the component supply unit 6 in the depth direction while the guided member 71 is guided by the guide member 70. While the roller 92A is in contact with the guide portion 89C of the locking member 89 provided in the electronic component mounting apparatus main body 1, the roller 92A is rotated counterclockwise while the roller 92A is rotated in the first locking portion 89A. Will be locked.

  Reference numeral 93 denotes a lock cylinder that constitutes an operating member provided in the electronic component mounting apparatus main body 1. One end of a second lock member 95 that can be rotated about a support shaft 94 is biased by a spring 96 to the rod 93 </ b> A. Has been pressed. When the lock cylinder 93 is actuated and the rod 93A is extended, the second lock member 95 provided in the electronic component mounting apparatus body 1 is rotated counterclockwise, and the other end of the second lock member 95 is rotated. The lock lever 95 </ b> A is in contact with the second locking portion 89 </ b> B of the locking member 89 and restricts the rotation of the locking member 89 in the counterclockwise direction.

  The locking member 89 is provided corresponding to each component supply unit 6, but the locking cylinder 93 and the second lock member 95 are provided corresponding to a plurality of component supply units 6. Therefore, the lock lever 95 </ b> A extends in the direction in which the component supply units 6 are arranged.

  6 and 7, reference numeral 102 denotes a seam detection device for the storage tape C, which is provided on the attachment member 103 attached to the rear end of the component supply unit 6. The seam detection device 102 is a device main body 104 in which the light emitting element 102A and the light receiving element 102B are provided at a distance of 8 millimeters, a prism 105 is provided at the upper end, and the cross section has a U-shaped cross section. The section is composed of a passage forming body 107 provided with a tape passage opening 106 so that the storage tape C can pass therethrough.

  That is, as the storage tape C is fed, in the case of the seamless storage tape C, the light from the light emitting element 102A is recursively reflected by the prism 105 via the feed holes (opened at intervals of 4 millimeters) Cb. Since the light is received by the light receiving element 102B, the joint detection device 102 can detect the absence of a joint, and in the case of a storage tape C having a joint, the light from the light emitting element 102A covers the feed hole Cb in accordance with the feeding operation. And is not received by the light receiving element 102B, and the presence of a seam is detected (see FIGS. 8 and 9).

  Next, a control block diagram of the electronic component mounting apparatus shown in FIG. 10 will be described. 110 is a CPU as a control unit that performs overall control of operations related to electronic component mounting of the electronic component mounting apparatus, 111 is a RAM (random access memory) as a storage device, and 112 is a ROM (read-only memory). ) 23.

  The RAM 111 is mounted for each type of printed circuit board P such as X direction, Y direction and angle information in the printed circuit board P, and arrangement number information of each component supply unit 6 for each mounting order (for each step number). Data is stored, and information on the type (component ID) of each electronic component corresponding to the arrangement number (lane number) of each component supply unit 6, that is, component arrangement information is stored. Furthermore, component library data composed of items representing the characteristics of the electronic component for each component ID is also stored.

  Then, the CPU 110 comprehensively controls operations related to the component mounting operation of the electronic component mounting apparatus according to the program stored in the ROM 112 based on the data stored in the RAM 111. That is, the CPU 110 rotates the X-axis drive motor 12X through the drive circuit 113, drives the Y-axis drive motor 12Y through the drive circuit 114, and rotates the suction nozzle 18 by θ through the drive circuit 115. The driving of the θ-axis motor 18A is controlled, and the driving of the vertical-axis motor 13A that moves the mounting head 16 up and down via the drive circuit 116 is controlled.

  A recognition processing device 117 is connected to the CPU 110 via the interface 118. The recognition processing device 117 performs recognition processing of an image captured by the component recognition camera 14 or the board recognition camera 17. The processing result is sent to the CPU 110. That is, the CPU 110 outputs an instruction to the recognition processing device 117 so as to perform recognition processing (calculation of misalignment amount, etc.) on the image captured by the component recognition camera 14 or the board recognition camera 17 and recognizes the recognition processing result. It is received from the device 117.

  That is, when the amount of positional deviation is grasped by the recognition processing of the recognition processing device 117, the result is sent to the CPU 110, and the CPU 110 detects the X axis drive motor 12X, the Y axis motor 12Y and the suction nozzle 18 of the XY stage 12. The θ-axis motor 18A is corrected and moved so that the electronic component is mounted on the printed circuit board P.

  The monitor 119A as a display device is provided with various touch panel switches 119B as input means for data setting. The operator can perform various settings by operating the touch panel switch 119B. Stored in 109A is a counter that counts the accumulated amount of the storage tape C, and 109B is a counter that counts the number of times the storage tape C has been fed since the joint detection device 102 detected the connected tape 108A.

  Next, the setting of the seam portion passage setting data by the connecting tapes 108A, 108B, and 108C, which is one of the component library data, will be described based on the screen displayed on the monitor 119A shown in FIG.

  Reference numeral 120 denotes a mode setting switch unit for selecting “mode setting”, which is “mode 1” or “mode 2”, and is set for each pressing operation. “Mode 1” is a mode in which the suction operation by the suction nozzle 18 is performed and the feed speed of the servo motor 28 of the tape feed mechanism 22 is decelerated. “Mode 2” is a mode in which the suction operation is not performed and the feed speed is idle. is there. The feed speed at the time of passing through the joint portion follows the “speed at the time of passing through the joint portion” described later.

  The joint passage speed switch section 121 is a switch for designating the feed speed at the joint portion suction position by the connecting tapes 108A, 108B, and 108C. When the joint section passage speed switch section 12179 is pressed, Since a numeric operation switch section (not shown) is displayed at the position, for example, when “90” is pressed, the CPU 110 drives the servo motor 28 through the drive circuit 125 at 90% of the normal acceleration / deceleration. To control.

  Reference numeral 122 denotes a seam length switch unit 122 for instructing the length of the seam. When the switch 122 is pressed, a numerical operation switch unit (not shown) is displayed at the position of the right portion of the screen. 40 ", the length of the connecting tapes 108A, 108B, 108C is set to 40 millimeters, and after the joint is detected by the joint detector 102, the joint passes through the electronic component suction position. Means that the electronic component to be taken out reaches the suppressor 23 and then comes out, and the CPU 110 controls the servo motor 28 via the drive circuit 125 so as to perform exception processing by this feed length. .

  123 is a component removal number switch unit for instructing the number of component removal. When this switch unit 123 is pressed, a numeric operation switch unit is displayed at the position of the right part of the screen. For example, when “1” is pressed, The number of electronic components that are intentionally pulled out without being loaded into the storage tape C within the joint section is set to “1”. When the exceptional processing section is reached, the length Lz (joint length 40 mm) of the connecting tapes 108A, 108B, and 108C is divided by the feed pitch from the Nth feed after the detection by the joint detector 102. The CPU 110 performs control so that the storage tape C is idle-fed as many times as the number of feeds including “1” is added, or performs control so as to carry out the idling feed corresponding to the set number of parts missing. Here, by setting “0”, the former is controlled.

  After the input, when the “setting” switch unit 124 is pressed, the CPU 110 controls the RAM 110 to store the seam passing setting data described above.

  Next, the feeding operation of the storage tape C will be described based on the flowchart of FIG. First, when there is a tape feed command signal from the CPU 110 of the electronic component mounting apparatus main body 1, it is determined by the CPU 110 whether or not the joint has been detected by the joint detection device 102.

  If it is determined that the electronic component is not detected, the CPU 110 of the electronic component mounting apparatus main body 1 stores the mounting data stored in the RAM 111 (data on which electronic component is mounted in which position on which direction on the printed circuit board). ), The tape feeding mechanism 22 of the corresponding predetermined component supply unit 6 is driven, and the storage tape C that stores the predetermined electronic component is intermittently fed once. That is, when the servo motor 28 is driven to rotate forward, the gear 27 and the gear 30 rotate to rotate the rotating shaft 33, and the sprocket 36 rotates intermittently by a predetermined angle in the feed direction via the worm gear 34 and the worm wheel 35. Thus, the storage tape C is intermittently fed through the feed hole Cb.

  When this tape feed mechanism 22 is driven, the cover tape peeling mechanism 20 peels (peels) the cover tape Ca for one intermittent feed in synchronism with this. Subsequently, when the tape feeding mechanism 22 and the cover tape peeling mechanism 20 are stopped, the electronic component is fed to the pickup position. Then, electronic components are picked up by the suction nozzle 18, and the next intermittent feeding of the storage tape C and the peeling of the cover tape Ca are performed again.

  The electronic components sucked and held by the suction nozzle 18 are mounted on the printed circuit board P, but the details are omitted here.

  At the time of the intermittent feeding, the CPU 110 determines whether or not the light transmission state is based on the information from the joint detection device 102, that is, whether or not the joint is not detected. If the joint is not detected, the count value of the counter 109A for the cumulative amount of storage tape C is cleared, and if the joint is detected instead of the light-transmitting state, the cumulative amount of storage tape C is detected. The count value of the counter 109A is incremented by 1 (aggregated and updated), and in any case, the CPU 110 determines whether or not the accumulated feed amount has reached the detection length Lz of the connected tapes 108A, 108B, and 108C. .

  In this case, if the CPU 110 determines that the detection length Lz has not been reached, or if the CPU 110 determines that the detection length Lz has been reached and sets the joint detection determination memory, the servo motor 28 feeds. The CPU 110 determines whether or not the operation has been completed. If the operation has not been completed, the process returns to the determination step of whether or not the light is transmitted. If completed, the process returns to the start.

  In this way, electronic components are sequentially taken out from the storage tape C by the suction nozzle 18 and mounted on the printed circuit board P, so that the number of electronic components in the storage tape C is reduced, and a new storage tape C is attached to the old storage tape C. The operation of connecting and loading the component supply unit 6 will be described. First, the storage tape C is fed out for a certain length from the storage tape reel storing the new storage tape C. Then, after the new storage tape C that has been fed out is connected (spliced) to the old storage tape C remaining in the component supply unit 6 that has run out of components, the storage tape reel of the new storage tape C is placed on the cart. In this case, at the starting end of a new storage tape C wound around the storage tape reel, the cover tape Ca is longer than the carrier tape Cc, and the feed hole Cb is cut into a semicircle by a cutting device, The new storage tape C cut in this way and its end already loaded in the component supply unit 1 are cut at a position where the storage tape C and the cover tape Ca are on the same surface and the feed hole Cb is a semicircle. Next, the connection with the old storage tape C will be described.

  First, the cut-side end surfaces of the new storage tape C and the old storage tape C are matched so that the semicircular feed holes Cb become circular feed holes Cb. In this case, the long cover tape Ca of the new storage tape C covers the cover tape Ca of the old storage tape C from above (see FIG. 9), and the two storage tapes C are connected with the three connecting tapes 108A, 108B, and 108C. Link. Of these, the narrow connecting tapes 108B and 108C are bonded onto the cover tape Ca of the two storage tapes C, and the wide connecting tape 108A is bonded and connected to both the storage tapes C so as to cover the feed holes Cb. .

  Then, the new storage tape reel in which the front end of the new storage tape C is connected to the rear end of the old storage tape C is placed on the cart, and the operation is completed.

  After the tape connecting operation, the operation is resumed, and when there is a tape feed command signal from the CPU 110 of the electronic component mounting apparatus main body 1, it is determined whether or not the seam is detected by the seam detecting device 102 and is detected. When the determination is made, the arrival of the joint portion at the suction position (part extraction position) is checked.

  Then, the CPU 110 determines whether or not the joint portion has reached the electronic component suction position, that is, whether or not it is an exceptional processing section. In this case, the arrival timing is ascertained from the number of times of feeding, and the distance from the detection position of the joint detection device 102 to the suction position is subtracted from the distance to the head of the connecting tape 108A that has already advanced when confirming the passage of the joint. The subtraction value is divided by the feed pitch of the electronic component, the number of feeds (the fraction is rounded down) is reached when the joint reaches the suction position, and the interval from this arrival timing until the connecting tape 108A passes the suction position (connecting tape) 108A corresponds to a length Lz of 108A).

  If the joint portion has not reached the suction position, the servo motor 28 is driven to perform the electronic component feed operation, and the arrival timing feed count is calculated by the counter 109B, and the process returns to the start. In this way, the electronic component feeding operation is sequentially performed. When the count value of the counter 109B reaches the number of times of feeding N at which the joint portion reaches the suction position, in other words, the joint portion reaches the suction position of the electronic component. In other words, when the exceptional processing section is reached, the value is obtained by adding “1” times to the value obtained by dividing the length Lz (joint length 40 mm) of the connecting tape 108A by the feed pitch from the Nth feed. The CPU 110 controls to perform exception processing.

  That is, as shown in the setting screen shown in FIG. 11, when the mode 1 is set, the CPU 110 reduces the rotational speed of the servo motor 28 via the drive circuit 125, that is, the normal acceleration / deceleration speed. Control to drive at 90%. Therefore, the tape feeding speed at the joint portion by the connecting tape 108A can be decelerated to suppress the behavior of the electronic component and stabilize the suction operation.

  Then, such tape feed speed reduction processing is performed until it is determined that the exceptional processing section is finished (passed). When the processing is finished, the joint detection determination memory is cleared by the CPU 110, and the tape feed cumulative amount is also the CPU 110. To clear the start.

  When the mode 2 is set, the CPU 110 performs control so that the storage tape C is idled without performing the electronic component suction operation. In this case, when the joint reaches the suction position of the electronic component, that is, reaches the exceptional processing section, the length Lz (joint length 40 mm) of the connecting tape 108A is divided by the feed pitch from the Nth feeding. The CPU 110 performs control so that the storage tape C is idle-fed for the number of times of feeding obtained by adding “1” times to the value obtained, or so as to carry out idling of one piece, which is the set number of missing parts. Control. By performing the idle feeding in this way, a part removal area is prepared in advance at the joint where the adsorption operation becomes unstable, and the storage tape is idle fed without performing the adsorption operation itself in this area. The post-suction operation can be resumed, and the part suction operation can always be performed under a good tape feed operation. As a result, recovery operations (such as re-suction operation that is a loss operation) due to suction failure occur. Can be avoided as much as possible, and the operating rate and reliability of the electronic component mounting apparatus are improved.

  In the case of exception processing as described above, even if component suction abnormalities occur consecutively, it is determined that the cause is due to out-of-components, and processing that is not added to the abnormality occurrence frequency in the suction rate aggregation is performed. This makes it easier to grasp the adsorption rate due to the responsibility of the device.

  The electronic component mounting apparatus has been described by taking a so-called multi-function chip mounter as an example. However, the present invention is not limited to this and may be applied to a high-speed chip mounter such as a rotary table type.

  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.

It is a top view of an electronic component mounting apparatus. It is a side view of the component supply unit of the state fixed on the feeder base. It is a longitudinal cross-sectional view of the cover tape peeling mechanism of FIG. FIG. 3 is a diagram illustrating a relationship between a component supply unit and a feeder base, as viewed from an arrow X direction in FIG. 2. FIG. 3 is a cross-sectional view illustrating a relationship between a component supply unit and a feeder base at a position of a front left / right regulating pin in FIG. 2. It is a side view of a seam detection device. It is the figure which looked at the joint detection apparatus in FIG. 6 from the arrow direction. It is a top view of the storage tape connected with the connection tape. It is a side view of the storage tape connected with the connection tape. It is a control block diagram. It is a figure which shows a joint part passage setting screen. It is a flowchart figure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic component mounting apparatus main body 6 Component supply unit 28 Servo motor 110 CPU
102 Joint detection device 108A Connecting tape 109B Counter 119A Monitor 125 Drive circuit C Storage tape

Claims (10)

  A component supply unit that supplies electronic components in the storage tape is provided, and the electronic components supplied from the component supply unit are sucked by a suction nozzle, and the storage tape is connected to each other in an electronic component mounting device that is mounted on a printed circuit board. An electronic component mounting apparatus, comprising: a controller that idles the storage tape without performing the component suction operation by the suction nozzle at the connecting tape portion.   In an electronic component mounting apparatus that includes a component supply unit that supplies electronic components in a storage tape, and sucks the electronic components supplied from the component supply unit by a suction nozzle and mounts them on a printed circuit board, the storage tapes are connected to each other. An electronic component mounting comprising: a control device that detects that the storage tape is connected and the storage tape is fed in the portion of the connecting tape that connects the storage tapes without performing the component suction operation by the suction nozzle apparatus.   The electronic component mounting apparatus according to claim 1, further comprising a setting unit configured to set a length of the connecting tape, wherein the idle feeding is performed in a section preset by the setting unit.   3. The electronic component mounting apparatus according to claim 1, further comprising a setting unit configured to set a length of the connecting tape, wherein the idle feeding is performed at least in a section set by the setting unit.   5. The electronic component mounting apparatus according to claim 2, wherein the detection of the connection between the storage tapes is performed by a detection unit that detects a connection tape that connects the storage tapes. A component supply unit for supplying electronic components in the storage tape is provided, the electronic tape supplied from the component supply unit is sucked by a suction nozzle, and the storage tape is connected to each other in an electronic component mounting device that is mounted on a printed circuit board. A seam detecting device for detecting the connecting tape, a counter for counting the number of feeding operations of the storage tape after the seam detecting device detects the connecting tape, and storing in a predetermined section when the counter counts a predetermined number of times. An electronic component mounting apparatus comprising: a control device that performs control so that a component suction operation by the suction nozzle is not performed even when a tape is fed . The electronic component mounting apparatus according to claim 6 , further comprising setting means for setting the predetermined section as the number of missing electronic components to the storage tape. 7. The electronic component mounting apparatus according to claim 6, further comprising setting means for setting the predetermined section as a length of a connecting tape portion connecting storage tapes. It is characterized by comprising selection means for selecting whether the predetermined section is set as the number of missing electronic components to the storage tape or as the length of the connecting tape portion connecting the storage tapes. The electronic component mounting apparatus according to any one of claims 6 to 8 . 10. The electronic component mounting apparatus according to claim 6, further comprising setting means for setting the predetermined section for each type of electronic component.

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